projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 219d1afa | 2 | Copyright (C) 1999-2018 Free Software Foundation, Inc. |
| 5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 4 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 5 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 6 | |
| ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 8 | |
| ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 12 | (at your option) any later version. |
| 5bd4f169 | 13 | |
| ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| 5bd4f169 | 18 | |
| 4ce794b7 AM |
19 | You should have received a copy of the GNU General Public License along |
| 20 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 21 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 22 | |
| cd123cb7 | 23 | |
| 4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
| 25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 27 | |
| 3db64b00 | 28 | #include "sysdep.h" |
| 183e98be | 29 | #include <stdarg.h> |
| 5bd4f169 | 30 | #include "bfd.h" |
| 5bd4f169 AM |
31 | #include "bfdlink.h" |
| 32 | #include "libbfd.h" | |
| 33 | #include "elf-bfd.h" | |
| 04c9666a | 34 | #include "elf/ppc64.h" |
| 5d1634d7 | 35 | #include "elf64-ppc.h" |
| 58d180e8 | 36 | #include "dwarf2.h" |
| 5bd4f169 | 37 | |
| 805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
40 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 54 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 55 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 56 | static bfd_vma opd_entry_value |
| aef36ac1 | 57 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 58 | |
| 6d00b590 | 59 | #define TARGET_LITTLE_SYM powerpc_elf64_le_vec |
| ad8e1ba5 | 60 | #define TARGET_LITTLE_NAME "elf64-powerpcle" |
| 6d00b590 | 61 | #define TARGET_BIG_SYM powerpc_elf64_vec |
| ad8e1ba5 AM |
62 | #define TARGET_BIG_NAME "elf64-powerpc" |
| 63 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 64 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
65 | #define ELF_MACHINE_CODE EM_PPC64 |
| 66 | #define ELF_MAXPAGESIZE 0x10000 | |
| 702d1671 AM |
67 | #define ELF_COMMONPAGESIZE 0x1000 |
| 68 | #define ELF_RELROPAGESIZE ELF_MAXPAGESIZE | |
| ad8e1ba5 AM |
69 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 70 | ||
| 71 | #define elf_backend_want_got_sym 0 | |
| 72 | #define elf_backend_want_plt_sym 0 | |
| 73 | #define elf_backend_plt_alignment 3 | |
| 74 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 75 | #define elf_backend_got_header_size 8 |
| 5474d94f | 76 | #define elf_backend_want_dynrelro 1 |
| ad8e1ba5 AM |
77 | #define elf_backend_can_gc_sections 1 |
| 78 | #define elf_backend_can_refcount 1 | |
| 79 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 80 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 81 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 82 | |
| e717da7e | 83 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 84 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 85 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
86 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 87 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
88 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 89 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 90 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 91 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| 8c5b4e52 | 92 | #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections |
| ad8e1ba5 AM |
93 | |
| 94 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
95 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 96 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 97 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| 9d19e4fd | 98 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
| ad8e1ba5 | 99 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol |
| 555cd476 | 100 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 101 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 102 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 103 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 104 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| c0e331c7 | 105 | #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible |
| 74f0fb50 | 106 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 107 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 | 108 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| ad8e1ba5 AM |
109 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol |
| 110 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 111 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
112 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 113 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 114 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 115 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 116 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
117 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 118 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 119 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 120 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 121 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 122 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 123 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| 8c5b4e52 | 124 | #define elf_backend_merge_symbol ppc64_elf_merge_symbol |
| bce964aa | 125 | #define elf_backend_get_reloc_section bfd_get_section_by_name |
| ad8e1ba5 | 126 | |
| 5bd4f169 AM |
127 | /* The name of the dynamic interpreter. This is put in the .interp |
| 128 | section. */ | |
| 129 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 130 | ||
| 131 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 132 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 2d7ad24e | 133 | #define LOCAL_PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 16 : 8) |
| 5bd4f169 AM |
134 | |
| 135 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 136 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 137 | |
| a078d95a AM |
138 | /* Offsets to some stack save slots. */ |
| 139 | #define STK_LR 16 | |
| 140 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 141 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
142 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 143 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 144 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 145 | ||
| 5bd4f169 | 146 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 147 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
148 | /* TOC base alignment. */ |
| 149 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
150 | |
| 151 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 152 | #define TP_OFFSET 0x7000 | |
| 153 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 154 | |
| ad8e1ba5 AM |
155 | /* .plt call stub instructions. The normal stub is like this, but |
| 156 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 157 | insert an addi to adjust r11. */ |
| a078d95a | 158 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
159 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 160 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 161 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 162 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 163 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
164 | #define BCTR 0x4e800420 /* bctr */ |
| 165 | ||
| 07d6d2b8 AM |
166 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| 167 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ | |
| 168 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 169 | ||
| 170 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ | |
| 171 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 172 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 173 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ | |
| 174 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 175 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 176 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 794e51c0 | 177 | |
| 71a39c98 | 178 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 | 179 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 07d6d2b8 | 180 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ |
| ac2df442 | 181 | |
| 07d6d2b8 AM |
182 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 183 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ | |
| 184 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 185 | |
| 07d6d2b8 | 186 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 006589cf AM |
187 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ |
| 188 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d | 189 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 07d6d2b8 | 190 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ |
| a345bc8d | 191 | |
| 9e390558 AM |
192 | /* __glink_PLTresolve stub instructions. We enter with the index in R0. */ |
| 193 | #define GLINK_PLTRESOLVE_SIZE(htab) \ | |
| 407aa07c | 194 | (8u + (htab->opd_abi ? 11 * 4 : 14 * 4)) |
| ee4bf8d2 AM |
195 | /* 0: */ |
| 196 | /* .quad plt0-1f */ | |
| 197 | /* __glink: */ | |
| 198 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 199 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 200 | /* 1: */ | |
| 201 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 202 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 203 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
204 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 205 | /* ld %12,0(%11) */ | |
| 206 | /* ld %2,8(%11) */ | |
| 207 | /* mtctr %12 */ | |
| 208 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 209 | /* bctr */ |
| b9e5796b AM |
210 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 211 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 212 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 213 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 214 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
215 | |
| 216 | /* Pad with this. */ | |
| 217 | #define NOP 0x60000000 | |
| 218 | ||
| 721956f4 AM |
219 | /* Some other nops. */ |
| 220 | #define CROR_151515 0x4def7b82 | |
| 221 | #define CROR_313131 0x4ffffb82 | |
| 222 | ||
| cedb70c5 | 223 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
224 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 225 | #define B_DOT 0x48000000 /* b . */ | |
| 226 | ||
| 227 | /* After that, we need two instructions to load the index, followed by | |
| 228 | a branch. */ | |
| 229 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 230 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 231 | |
| deb0e272 AM |
232 | /* Instructions used by the save and restore reg functions. */ |
| 233 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 234 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 235 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 236 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
237 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 238 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
239 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 240 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 241 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 242 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
243 | #define BLR 0x4e800020 /* blr */ |
| 244 | ||
| 41bd81ab AM |
245 | /* Since .opd is an array of descriptors and each entry will end up |
| 246 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 247 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 248 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
249 | #ifndef NO_OPD_RELOCS |
| 250 | #define NO_OPD_RELOCS 0 | |
| 251 | #endif | |
| 810d4e75 | 252 | |
| a4b6fadd AM |
253 | #ifndef ARRAY_SIZE |
| 254 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 255 | #endif | |
| 256 | ||
| 810d4e75 AM |
257 | static inline int |
| 258 | abiversion (bfd *abfd) | |
| 259 | { | |
| 260 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 261 | } | |
| 262 | ||
| 263 | static inline void | |
| 264 | set_abiversion (bfd *abfd, int ver) | |
| 265 | { | |
| 266 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 267 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 268 | } | |
| 5bd4f169 | 269 | \f |
| f5e87a1d | 270 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 271 | |
| 5bd4f169 | 272 | /* Relocation HOWTO's. */ |
| 04c9666a | 273 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 | 274 | |
| f3185997 NC |
275 | static reloc_howto_type ppc64_elf_howto_raw[] = |
| 276 | { | |
| 5bd4f169 AM |
277 | /* This reloc does nothing. */ |
| 278 | HOWTO (R_PPC64_NONE, /* type */ | |
| 279 | 0, /* rightshift */ | |
| 6346d5ca AM |
280 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 281 | 0, /* bitsize */ | |
| b34976b6 | 282 | FALSE, /* pc_relative */ |
| 5bd4f169 | 283 | 0, /* bitpos */ |
| f5e87a1d | 284 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
285 | bfd_elf_generic_reloc, /* special_function */ |
| 286 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 287 | FALSE, /* partial_inplace */ |
| d006db6c | 288 | 0, /* src_mask */ |
| 5bd4f169 | 289 | 0, /* dst_mask */ |
| b34976b6 | 290 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
291 | |
| 292 | /* A standard 32 bit relocation. */ | |
| 293 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 294 | 0, /* rightshift */ | |
| 295 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 296 | 32, /* bitsize */ | |
| b34976b6 | 297 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
298 | 0, /* bitpos */ |
| 299 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 300 | bfd_elf_generic_reloc, /* special_function */ | |
| 301 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 302 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
303 | 0, /* src_mask */ |
| 304 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 305 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
306 | |
| 307 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 308 | FIXME: we don't check that, we just clear them. */ | |
| 309 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 310 | 0, /* rightshift */ | |
| 311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 312 | 26, /* bitsize */ | |
| b34976b6 | 313 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
314 | 0, /* bitpos */ |
| 315 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 316 | bfd_elf_generic_reloc, /* special_function */ | |
| 317 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 318 | FALSE, /* partial_inplace */ |
| d006db6c | 319 | 0, /* src_mask */ |
| f5e87a1d | 320 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 321 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
322 | |
| 323 | /* A standard 16 bit relocation. */ | |
| 324 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 325 | 0, /* rightshift */ | |
| 326 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 327 | 16, /* bitsize */ | |
| b34976b6 | 328 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
329 | 0, /* bitpos */ |
| 330 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 331 | bfd_elf_generic_reloc, /* special_function */ | |
| 332 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 333 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
334 | 0, /* src_mask */ |
| 335 | 0xffff, /* dst_mask */ | |
| b34976b6 | 336 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
337 | |
| 338 | /* A 16 bit relocation without overflow. */ | |
| 339 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 340 | 0, /* rightshift */ | |
| 341 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 342 | 16, /* bitsize */ | |
| b34976b6 | 343 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
344 | 0, /* bitpos */ |
| 345 | complain_overflow_dont,/* complain_on_overflow */ | |
| 346 | bfd_elf_generic_reloc, /* special_function */ | |
| 347 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 348 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
349 | 0, /* src_mask */ |
| 350 | 0xffff, /* dst_mask */ | |
| b34976b6 | 351 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
352 | |
| 353 | /* Bits 16-31 of an address. */ | |
| 354 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 355 | 16, /* rightshift */ | |
| 356 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 357 | 16, /* bitsize */ | |
| b34976b6 | 358 | FALSE, /* pc_relative */ |
| 5bd4f169 | 359 | 0, /* bitpos */ |
| f9c6b907 | 360 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
361 | bfd_elf_generic_reloc, /* special_function */ |
| 362 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 363 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
364 | 0, /* src_mask */ |
| 365 | 0xffff, /* dst_mask */ | |
| b34976b6 | 366 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
367 | |
| 368 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 369 | bits, treated as a signed number, is negative. */ | |
| 370 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 371 | 16, /* rightshift */ | |
| 372 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 373 | 16, /* bitsize */ | |
| b34976b6 | 374 | FALSE, /* pc_relative */ |
| 5bd4f169 | 375 | 0, /* bitpos */ |
| f9c6b907 | 376 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 377 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 378 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 379 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
380 | 0, /* src_mask */ |
| 381 | 0xffff, /* dst_mask */ | |
| b34976b6 | 382 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
383 | |
| 384 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 385 | FIXME: we don't check that, we just clear them. */ | |
| 386 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 387 | 0, /* rightshift */ | |
| 388 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 389 | 16, /* bitsize */ | |
| b34976b6 | 390 | FALSE, /* pc_relative */ |
| 5bd4f169 | 391 | 0, /* bitpos */ |
| b80eed39 | 392 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 393 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 394 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 395 | FALSE, /* partial_inplace */ |
| d006db6c | 396 | 0, /* src_mask */ |
| f5e87a1d | 397 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 398 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
399 | |
| 400 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 401 | indicate that the branch is expected to be taken. The lower two | |
| 402 | bits must be zero. */ | |
| 403 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 404 | 0, /* rightshift */ | |
| 405 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 406 | 16, /* bitsize */ | |
| b34976b6 | 407 | FALSE, /* pc_relative */ |
| 5bd4f169 | 408 | 0, /* bitpos */ |
| b80eed39 | 409 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 410 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 411 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 412 | FALSE, /* partial_inplace */ |
| d006db6c | 413 | 0, /* src_mask */ |
| f5e87a1d | 414 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 415 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
416 | |
| 417 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 418 | indicate that the branch is not expected to be taken. The lower | |
| 419 | two bits must be zero. */ | |
| 420 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 421 | 0, /* rightshift */ | |
| 422 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 423 | 16, /* bitsize */ | |
| b34976b6 | 424 | FALSE, /* pc_relative */ |
| 5bd4f169 | 425 | 0, /* bitpos */ |
| b80eed39 | 426 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 427 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 428 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 429 | FALSE, /* partial_inplace */ |
| d006db6c | 430 | 0, /* src_mask */ |
| f5e87a1d | 431 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 432 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
433 | |
| 434 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 435 | HOWTO (R_PPC64_REL24, /* type */ | |
| 436 | 0, /* rightshift */ | |
| 437 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 438 | 26, /* bitsize */ | |
| b34976b6 | 439 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
440 | 0, /* bitpos */ |
| 441 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 442 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 443 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 444 | FALSE, /* partial_inplace */ |
| d006db6c | 445 | 0, /* src_mask */ |
| f5e87a1d | 446 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 447 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
448 | |
| 449 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 450 | HOWTO (R_PPC64_REL14, /* type */ | |
| 451 | 0, /* rightshift */ | |
| 452 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 453 | 16, /* bitsize */ | |
| b34976b6 | 454 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
455 | 0, /* bitpos */ |
| 456 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 457 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 458 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 459 | FALSE, /* partial_inplace */ |
| d006db6c | 460 | 0, /* src_mask */ |
| f5e87a1d | 461 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 462 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
463 | |
| 464 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 465 | the branch is expected to be taken. The lower two bits must be | |
| 466 | zero. */ | |
| 467 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 468 | 0, /* rightshift */ | |
| 469 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 470 | 16, /* bitsize */ | |
| b34976b6 | 471 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
472 | 0, /* bitpos */ |
| 473 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 474 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 475 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 476 | FALSE, /* partial_inplace */ |
| d006db6c | 477 | 0, /* src_mask */ |
| f5e87a1d | 478 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 479 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
480 | |
| 481 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 482 | the branch is not expected to be taken. The lower two bits must | |
| 483 | be zero. */ | |
| 484 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 485 | 0, /* rightshift */ | |
| 486 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 487 | 16, /* bitsize */ | |
| b34976b6 | 488 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
489 | 0, /* bitpos */ |
| 490 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 491 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 492 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 493 | FALSE, /* partial_inplace */ |
| d006db6c | 494 | 0, /* src_mask */ |
| f5e87a1d | 495 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 496 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
497 | |
| 498 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 499 | symbol. */ | |
| 500 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 501 | 0, /* rightshift */ | |
| 502 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 503 | 16, /* bitsize */ | |
| b34976b6 | 504 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
505 | 0, /* bitpos */ |
| 506 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 507 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 508 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 509 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
510 | 0, /* src_mask */ |
| 511 | 0xffff, /* dst_mask */ | |
| b34976b6 | 512 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
513 | |
| 514 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 515 | the symbol. */ | |
| 516 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 517 | 0, /* rightshift */ | |
| 518 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 519 | 16, /* bitsize */ | |
| b34976b6 | 520 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
521 | 0, /* bitpos */ |
| 522 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 523 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 524 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 525 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
526 | 0, /* src_mask */ |
| 527 | 0xffff, /* dst_mask */ | |
| b34976b6 | 528 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
529 | |
| 530 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 531 | the symbol. */ | |
| 532 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 533 | 16, /* rightshift */ | |
| 534 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 535 | 16, /* bitsize */ | |
| b34976b6 | 536 | FALSE, /* pc_relative */ |
| 5bd4f169 | 537 | 0, /* bitpos */ |
| f9c6b907 | 538 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 539 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 540 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 541 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
542 | 0, /* src_mask */ |
| 543 | 0xffff, /* dst_mask */ | |
| b34976b6 | 544 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
545 | |
| 546 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 547 | the symbol. */ | |
| 548 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 549 | 16, /* rightshift */ | |
| 550 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 551 | 16, /* bitsize */ | |
| b34976b6 | 552 | FALSE, /* pc_relative */ |
| 5bd4f169 | 553 | 0, /* bitpos */ |
| f9c6b907 | 554 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 555 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 556 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 557 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
558 | 0, /* src_mask */ |
| 559 | 0xffff, /* dst_mask */ | |
| b34976b6 | 560 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
561 | |
| 562 | /* This is used only by the dynamic linker. The symbol should exist | |
| 563 | both in the object being run and in some shared library. The | |
| 564 | dynamic linker copies the data addressed by the symbol from the | |
| 565 | shared library into the object, because the object being | |
| 566 | run has to have the data at some particular address. */ | |
| 567 | HOWTO (R_PPC64_COPY, /* type */ | |
| 568 | 0, /* rightshift */ | |
| f5e87a1d AM |
569 | 0, /* this one is variable size */ |
| 570 | 0, /* bitsize */ | |
| b34976b6 | 571 | FALSE, /* pc_relative */ |
| 5bd4f169 | 572 | 0, /* bitpos */ |
| f5e87a1d AM |
573 | complain_overflow_dont, /* complain_on_overflow */ |
| 574 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 575 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 576 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
577 | 0, /* src_mask */ |
| 578 | 0, /* dst_mask */ | |
| b34976b6 | 579 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
580 | |
| 581 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 582 | entries. */ | |
| 583 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 584 | 0, /* rightshift */ | |
| 585 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 586 | 64, /* bitsize */ | |
| b34976b6 | 587 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
588 | 0, /* bitpos */ |
| 589 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 590 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 591 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 592 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 593 | 0, /* src_mask */ |
| f5e87a1d | 594 | ONES (64), /* dst_mask */ |
| b34976b6 | 595 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
596 | |
| 597 | /* Created by the link editor. Marks a procedure linkage table | |
| 598 | entry for a symbol. */ | |
| 599 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 600 | 0, /* rightshift */ | |
| 601 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 602 | 0, /* bitsize */ | |
| b34976b6 | 603 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
604 | 0, /* bitpos */ |
| 605 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 606 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 607 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 608 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
609 | 0, /* src_mask */ |
| 610 | 0, /* dst_mask */ | |
| b34976b6 | 611 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
612 | |
| 613 | /* Used only by the dynamic linker. When the object is run, this | |
| 614 | doubleword64 is set to the load address of the object, plus the | |
| 615 | addend. */ | |
| 616 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 617 | 0, /* rightshift */ | |
| 618 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 619 | 64, /* bitsize */ | |
| b34976b6 | 620 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
621 | 0, /* bitpos */ |
| 622 | complain_overflow_dont, /* complain_on_overflow */ | |
| 623 | bfd_elf_generic_reloc, /* special_function */ | |
| 624 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 625 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 626 | 0, /* src_mask */ |
| f5e87a1d | 627 | ONES (64), /* dst_mask */ |
| b34976b6 | 628 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
629 | |
| 630 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 631 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 632 | 0, /* rightshift */ | |
| 633 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 634 | 32, /* bitsize */ | |
| b34976b6 | 635 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
636 | 0, /* bitpos */ |
| 637 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 638 | bfd_elf_generic_reloc, /* special_function */ | |
| 639 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 640 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
641 | 0, /* src_mask */ |
| 642 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 643 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
644 | |
| 645 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 646 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 647 | 0, /* rightshift */ | |
| 648 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 649 | 16, /* bitsize */ | |
| b34976b6 | 650 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
651 | 0, /* bitpos */ |
| 652 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 653 | bfd_elf_generic_reloc, /* special_function */ | |
| 654 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 655 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
656 | 0, /* src_mask */ |
| 657 | 0xffff, /* dst_mask */ | |
| b34976b6 | 658 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
659 | |
| 660 | /* 32-bit PC relative. */ | |
| 661 | HOWTO (R_PPC64_REL32, /* type */ | |
| 662 | 0, /* rightshift */ | |
| 663 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 664 | 32, /* bitsize */ | |
| b34976b6 | 665 | TRUE, /* pc_relative */ |
| 5bd4f169 | 666 | 0, /* bitpos */ |
| 5bd4f169 AM |
667 | complain_overflow_signed, /* complain_on_overflow */ |
| 668 | bfd_elf_generic_reloc, /* special_function */ | |
| 669 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 670 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
671 | 0, /* src_mask */ |
| 672 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 673 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 674 | |
| 10ed1bba | 675 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
676 | HOWTO (R_PPC64_PLT32, /* type */ |
| 677 | 0, /* rightshift */ | |
| 678 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 679 | 32, /* bitsize */ | |
| b34976b6 | 680 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
681 | 0, /* bitpos */ |
| 682 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 683 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 684 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 685 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 686 | 0, /* src_mask */ |
| f5e87a1d | 687 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 688 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
689 | |
| 690 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 691 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 692 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 693 | 0, /* rightshift */ | |
| 694 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 695 | 32, /* bitsize */ | |
| b34976b6 | 696 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
697 | 0, /* bitpos */ |
| 698 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 699 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 700 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 701 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 702 | 0, /* src_mask */ |
| f5e87a1d | 703 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 704 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
705 | |
| 706 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 707 | the symbol. */ | |
| 708 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 709 | 0, /* rightshift */ | |
| 710 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 711 | 16, /* bitsize */ | |
| b34976b6 | 712 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
713 | 0, /* bitpos */ |
| 714 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 715 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 716 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 717 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
718 | 0, /* src_mask */ |
| 719 | 0xffff, /* dst_mask */ | |
| b34976b6 | 720 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
721 | |
| 722 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 723 | the symbol. */ | |
| 724 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 725 | 16, /* rightshift */ | |
| 726 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 727 | 16, /* bitsize */ | |
| b34976b6 | 728 | FALSE, /* pc_relative */ |
| 5bd4f169 | 729 | 0, /* bitpos */ |
| f9c6b907 | 730 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 731 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 732 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 733 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
734 | 0, /* src_mask */ |
| 735 | 0xffff, /* dst_mask */ | |
| b34976b6 | 736 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
737 | |
| 738 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 739 | the symbol. */ | |
| 740 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 741 | 16, /* rightshift */ | |
| 742 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 743 | 16, /* bitsize */ | |
| b34976b6 | 744 | FALSE, /* pc_relative */ |
| 5bd4f169 | 745 | 0, /* bitpos */ |
| f9c6b907 | 746 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 747 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 748 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 749 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
750 | 0, /* src_mask */ |
| 751 | 0xffff, /* dst_mask */ | |
| b34976b6 | 752 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 753 | |
| c061c2d8 | 754 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
755 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 756 | 0, /* rightshift */ | |
| c061c2d8 AM |
757 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 758 | 16, /* bitsize */ | |
| b34976b6 | 759 | FALSE, /* pc_relative */ |
| 5bd4f169 | 760 | 0, /* bitpos */ |
| b80eed39 | 761 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 762 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 763 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 764 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 765 | 0, /* src_mask */ |
| c061c2d8 | 766 | 0xffff, /* dst_mask */ |
| b34976b6 | 767 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 768 | |
| c061c2d8 | 769 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
770 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 771 | 0, /* rightshift */ | |
| 772 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 773 | 16, /* bitsize */ | |
| b34976b6 | 774 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
775 | 0, /* bitpos */ |
| 776 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 777 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 778 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 779 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
780 | 0, /* src_mask */ |
| 781 | 0xffff, /* dst_mask */ | |
| b34976b6 | 782 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
783 | |
| 784 | /* 16-bit upper half section relative relocation. */ | |
| 785 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 786 | 16, /* rightshift */ | |
| 787 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 788 | 16, /* bitsize */ | |
| b34976b6 | 789 | FALSE, /* pc_relative */ |
| 5bd4f169 | 790 | 0, /* bitpos */ |
| f9c6b907 | 791 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 792 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 793 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 794 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
795 | 0, /* src_mask */ |
| 796 | 0xffff, /* dst_mask */ | |
| b34976b6 | 797 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
798 | |
| 799 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 800 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 801 | 16, /* rightshift */ | |
| 802 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 803 | 16, /* bitsize */ | |
| b34976b6 | 804 | FALSE, /* pc_relative */ |
| 5bd4f169 | 805 | 0, /* bitpos */ |
| f9c6b907 | 806 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 807 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 808 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 809 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
810 | 0, /* src_mask */ |
| 811 | 0xffff, /* dst_mask */ | |
| b34976b6 | 812 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 813 | |
| 04c9666a AM |
814 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 815 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
816 | 2, /* rightshift */ |
| 817 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 818 | 30, /* bitsize */ | |
| b34976b6 | 819 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
820 | 0, /* bitpos */ |
| 821 | complain_overflow_dont, /* complain_on_overflow */ | |
| 822 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 823 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 824 | FALSE, /* partial_inplace */ |
| d006db6c | 825 | 0, /* src_mask */ |
| 5bd4f169 | 826 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 827 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
828 | |
| 829 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 830 | ||
| 831 | /* A standard 64-bit relocation. */ | |
| 832 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 833 | 0, /* rightshift */ | |
| 834 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 835 | 64, /* bitsize */ | |
| b34976b6 | 836 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
837 | 0, /* bitpos */ |
| 838 | complain_overflow_dont, /* complain_on_overflow */ | |
| 839 | bfd_elf_generic_reloc, /* special_function */ | |
| 840 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 841 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 842 | 0, /* src_mask */ |
| f5e87a1d | 843 | ONES (64), /* dst_mask */ |
| b34976b6 | 844 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
845 | |
| 846 | /* The bits 32-47 of an address. */ | |
| 847 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 848 | 32, /* rightshift */ | |
| 849 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 850 | 16, /* bitsize */ | |
| b34976b6 | 851 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
852 | 0, /* bitpos */ |
| 853 | complain_overflow_dont, /* complain_on_overflow */ | |
| 854 | bfd_elf_generic_reloc, /* special_function */ | |
| 855 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 856 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
857 | 0, /* src_mask */ |
| 858 | 0xffff, /* dst_mask */ | |
| b34976b6 | 859 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
860 | |
| 861 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 862 | 16 bits, treated as a signed number, is negative. */ | |
| 863 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 864 | 32, /* rightshift */ | |
| 865 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 866 | 16, /* bitsize */ | |
| b34976b6 | 867 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
868 | 0, /* bitpos */ |
| 869 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 870 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 871 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 872 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
873 | 0, /* src_mask */ |
| 874 | 0xffff, /* dst_mask */ | |
| b34976b6 | 875 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
876 | |
| 877 | /* The bits 48-63 of an address. */ | |
| 878 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 879 | 48, /* rightshift */ | |
| 880 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 881 | 16, /* bitsize */ | |
| b34976b6 | 882 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
883 | 0, /* bitpos */ |
| 884 | complain_overflow_dont, /* complain_on_overflow */ | |
| 885 | bfd_elf_generic_reloc, /* special_function */ | |
| 886 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 887 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
888 | 0, /* src_mask */ |
| 889 | 0xffff, /* dst_mask */ | |
| b34976b6 | 890 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
891 | |
| 892 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 893 | 16 bits, treated as a signed number, is negative. */ | |
| 894 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 895 | 48, /* rightshift */ | |
| 896 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 897 | 16, /* bitsize */ | |
| b34976b6 | 898 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
899 | 0, /* bitpos */ |
| 900 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 901 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 902 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 903 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
904 | 0, /* src_mask */ |
| 905 | 0xffff, /* dst_mask */ | |
| b34976b6 | 906 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
907 | |
| 908 | /* Like ADDR64, but may be unaligned. */ | |
| 909 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 910 | 0, /* rightshift */ | |
| 911 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 912 | 64, /* bitsize */ | |
| b34976b6 | 913 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
914 | 0, /* bitpos */ |
| 915 | complain_overflow_dont, /* complain_on_overflow */ | |
| 916 | bfd_elf_generic_reloc, /* special_function */ | |
| 917 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 918 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 919 | 0, /* src_mask */ |
| f5e87a1d | 920 | ONES (64), /* dst_mask */ |
| b34976b6 | 921 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
922 | |
| 923 | /* 64-bit relative relocation. */ | |
| 924 | HOWTO (R_PPC64_REL64, /* type */ | |
| 925 | 0, /* rightshift */ | |
| 926 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 927 | 64, /* bitsize */ | |
| b34976b6 | 928 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
929 | 0, /* bitpos */ |
| 930 | complain_overflow_dont, /* complain_on_overflow */ | |
| 931 | bfd_elf_generic_reloc, /* special_function */ | |
| 932 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 933 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 934 | 0, /* src_mask */ |
| f5e87a1d | 935 | ONES (64), /* dst_mask */ |
| b34976b6 | 936 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 937 | |
| cedb70c5 | 938 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
939 | HOWTO (R_PPC64_PLT64, /* type */ |
| 940 | 0, /* rightshift */ | |
| 941 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 942 | 64, /* bitsize */ | |
| b34976b6 | 943 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
944 | 0, /* bitpos */ |
| 945 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 946 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 947 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 948 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 949 | 0, /* src_mask */ |
| f5e87a1d | 950 | ONES (64), /* dst_mask */ |
| b34976b6 | 951 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
952 | |
| 953 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 954 | table. */ | |
| 955 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 956 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 957 | 0, /* rightshift */ | |
| 958 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 959 | 64, /* bitsize */ | |
| b34976b6 | 960 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
961 | 0, /* bitpos */ |
| 962 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 963 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 964 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 965 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 966 | 0, /* src_mask */ |
| f5e87a1d | 967 | ONES (64), /* dst_mask */ |
| b34976b6 | 968 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
969 | |
| 970 | /* 16 bit TOC-relative relocation. */ | |
| 971 | ||
| 972 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 973 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 974 | 0, /* rightshift */ | |
| 975 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 976 | 16, /* bitsize */ | |
| b34976b6 | 977 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
978 | 0, /* bitpos */ |
| 979 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 980 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 981 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 982 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
983 | 0, /* src_mask */ |
| 984 | 0xffff, /* dst_mask */ | |
| b34976b6 | 985 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
986 | |
| 987 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 988 | ||
| 989 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 990 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 991 | 0, /* rightshift */ | |
| 992 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 993 | 16, /* bitsize */ | |
| b34976b6 | 994 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
995 | 0, /* bitpos */ |
| 996 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 997 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 998 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 999 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1000 | 0, /* src_mask */ |
| 1001 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1002 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1003 | |
| 1004 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1005 | ||
| 1006 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1007 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1008 | 16, /* rightshift */ | |
| 1009 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1010 | 16, /* bitsize */ | |
| b34976b6 | 1011 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1012 | 0, /* bitpos */ |
| f9c6b907 | 1013 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1014 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1015 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1016 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1017 | 0, /* src_mask */ |
| 1018 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1019 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1020 | |
| 1021 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1022 | contents of the low 16 bits, treated as a signed number, is | |
| 1023 | negative. */ | |
| 1024 | ||
| 1025 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1026 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1027 | 16, /* rightshift */ | |
| 1028 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1029 | 16, /* bitsize */ | |
| b34976b6 | 1030 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1031 | 0, /* bitpos */ |
| f9c6b907 | 1032 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1033 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1034 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1035 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1036 | 0, /* src_mask */ |
| 1037 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1038 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1039 | |
| 1040 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1041 | ||
| 1042 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1043 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1044 | 0, /* rightshift */ | |
| 1045 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1046 | 64, /* bitsize */ | |
| b34976b6 | 1047 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1048 | 0, /* bitpos */ |
| b80eed39 | 1049 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1050 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1051 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1052 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1053 | 0, /* src_mask */ |
| f5e87a1d | 1054 | ONES (64), /* dst_mask */ |
| b34976b6 | 1055 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1056 | |
| 1057 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1058 | value to relocate may (!) refer to a PLT entry which the link | |
| 1059 | editor (a) may replace with the symbol value. If the link editor | |
| 1060 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1061 | entry and store the address to the new PLT entry in the GOT. | |
| 1062 | This permits lazy resolution of function symbols at run time. | |
| 1063 | The link editor may also skip all of this and just (c) emit a | |
| 1064 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1065 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1066 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1067 | 0, /* rightshift */ | |
| 1068 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1069 | 16, /* bitsize */ | |
| b34976b6 | 1070 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1071 | 0, /* bitpos */ |
| 1072 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1073 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1074 | "R_PPC64_PLTGOT16", /* name */ |
| 1075 | FALSE, /* partial_inplace */ | |
| 1076 | 0, /* src_mask */ | |
| 1077 | 0xffff, /* dst_mask */ | |
| 1078 | FALSE), /* pcrel_offset */ | |
| 1079 | ||
| 1080 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1081 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1082 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1083 | 0, /* rightshift */ | |
| 1084 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1085 | 16, /* bitsize */ | |
| 1086 | FALSE, /* pc_relative */ | |
| 1087 | 0, /* bitpos */ | |
| 1088 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1089 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1090 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1091 | FALSE, /* partial_inplace */ | |
| 1092 | 0, /* src_mask */ | |
| 1093 | 0xffff, /* dst_mask */ | |
| 1094 | FALSE), /* pcrel_offset */ | |
| 1095 | ||
| 1096 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1097 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1098 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1099 | 16, /* rightshift */ | |
| 1100 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1101 | 16, /* bitsize */ | |
| 1102 | FALSE, /* pc_relative */ | |
| 1103 | 0, /* bitpos */ | |
| f9c6b907 | 1104 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1105 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1106 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1107 | FALSE, /* partial_inplace */ | |
| 1108 | 0, /* src_mask */ | |
| 1109 | 0xffff, /* dst_mask */ | |
| 1110 | FALSE), /* pcrel_offset */ | |
| 1111 | ||
| 1112 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1113 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1114 | is negative. */ | |
| 1115 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1116 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1117 | 16, /* rightshift */ | |
| 1118 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1119 | 16, /* bitsize */ | |
| 1120 | FALSE, /* pc_relative */ | |
| 1121 | 0, /* bitpos */ | |
| f9c6b907 | 1122 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1123 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1124 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1125 | FALSE, /* partial_inplace */ | |
| 1126 | 0, /* src_mask */ | |
| 1127 | 0xffff, /* dst_mask */ | |
| 1128 | FALSE), /* pcrel_offset */ | |
| 1129 | ||
| 1130 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1131 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1132 | 0, /* rightshift */ | |
| 1133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1134 | 16, /* bitsize */ | |
| 1135 | FALSE, /* pc_relative */ | |
| 1136 | 0, /* bitpos */ | |
| b80eed39 | 1137 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1138 | bfd_elf_generic_reloc, /* special_function */ |
| 1139 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1140 | FALSE, /* partial_inplace */ | |
| 1141 | 0, /* src_mask */ | |
| 1142 | 0xfffc, /* dst_mask */ | |
| 1143 | FALSE), /* pcrel_offset */ | |
| 1144 | ||
| 1145 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1146 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1147 | 0, /* rightshift */ | |
| 1148 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1149 | 16, /* bitsize */ | |
| 1150 | FALSE, /* pc_relative */ | |
| 1151 | 0, /* bitpos */ | |
| 1152 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1153 | bfd_elf_generic_reloc, /* special_function */ | |
| 1154 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1155 | FALSE, /* partial_inplace */ | |
| 1156 | 0, /* src_mask */ | |
| 1157 | 0xfffc, /* dst_mask */ | |
| 1158 | FALSE), /* pcrel_offset */ | |
| 1159 | ||
| 1160 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1161 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1162 | 0, /* rightshift */ | |
| 1163 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1164 | 16, /* bitsize */ | |
| 1165 | FALSE, /* pc_relative */ | |
| 1166 | 0, /* bitpos */ | |
| 1167 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1168 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1169 | "R_PPC64_GOT16_DS", /* name */ | |
| 1170 | FALSE, /* partial_inplace */ | |
| 1171 | 0, /* src_mask */ | |
| 1172 | 0xfffc, /* dst_mask */ | |
| 1173 | FALSE), /* pcrel_offset */ | |
| 1174 | ||
| 1175 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1176 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1177 | 0, /* rightshift */ | |
| 1178 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1179 | 16, /* bitsize */ | |
| 1180 | FALSE, /* pc_relative */ | |
| 1181 | 0, /* bitpos */ | |
| 1182 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1183 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1184 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1185 | FALSE, /* partial_inplace */ | |
| 1186 | 0, /* src_mask */ | |
| 1187 | 0xfffc, /* dst_mask */ | |
| 1188 | FALSE), /* pcrel_offset */ | |
| 1189 | ||
| 1190 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1191 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1192 | 0, /* rightshift */ | |
| 1193 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1194 | 16, /* bitsize */ | |
| 1195 | FALSE, /* pc_relative */ | |
| 1196 | 0, /* bitpos */ | |
| 1197 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1198 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1199 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1200 | FALSE, /* partial_inplace */ | |
| 1201 | 0, /* src_mask */ | |
| 1202 | 0xfffc, /* dst_mask */ | |
| 1203 | FALSE), /* pcrel_offset */ | |
| 1204 | ||
| 1205 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1206 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1207 | 0, /* rightshift */ | |
| 1208 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1209 | 16, /* bitsize */ | |
| 1210 | FALSE, /* pc_relative */ | |
| 1211 | 0, /* bitpos */ | |
| b80eed39 | 1212 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1213 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1214 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1215 | FALSE, /* partial_inplace */ | |
| 1216 | 0, /* src_mask */ | |
| 1217 | 0xfffc, /* dst_mask */ | |
| 1218 | FALSE), /* pcrel_offset */ | |
| 1219 | ||
| 1220 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1221 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1222 | 0, /* rightshift */ | |
| 1223 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1224 | 16, /* bitsize */ | |
| 1225 | FALSE, /* pc_relative */ | |
| 1226 | 0, /* bitpos */ | |
| 1227 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1228 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1229 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1230 | FALSE, /* partial_inplace */ | |
| 1231 | 0, /* src_mask */ | |
| 1232 | 0xfffc, /* dst_mask */ | |
| 1233 | FALSE), /* pcrel_offset */ | |
| 1234 | ||
| 1235 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1236 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1237 | 0, /* rightshift */ | |
| 1238 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1239 | 16, /* bitsize */ | |
| 1240 | FALSE, /* pc_relative */ | |
| 1241 | 0, /* bitpos */ | |
| 1242 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1243 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1244 | "R_PPC64_TOC16_DS", /* name */ | |
| 1245 | FALSE, /* partial_inplace */ | |
| 1246 | 0, /* src_mask */ | |
| 1247 | 0xfffc, /* dst_mask */ | |
| 1248 | FALSE), /* pcrel_offset */ | |
| 1249 | ||
| 1250 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1251 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1252 | 0, /* rightshift */ | |
| 1253 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1254 | 16, /* bitsize */ | |
| 1255 | FALSE, /* pc_relative */ | |
| 1256 | 0, /* bitpos */ | |
| 1257 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1258 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1259 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1260 | FALSE, /* partial_inplace */ | |
| 1261 | 0, /* src_mask */ | |
| 1262 | 0xfffc, /* dst_mask */ | |
| 1263 | FALSE), /* pcrel_offset */ | |
| 1264 | ||
| 1265 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1266 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1267 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1268 | 0, /* rightshift */ |
| 1269 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1270 | 16, /* bitsize */ | |
| 1271 | FALSE, /* pc_relative */ | |
| 1272 | 0, /* bitpos */ | |
| 1273 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1274 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1275 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1276 | FALSE, /* partial_inplace */ | |
| 1277 | 0, /* src_mask */ | |
| 1278 | 0xfffc, /* dst_mask */ | |
| 1279 | FALSE), /* pcrel_offset */ | |
| 1280 | ||
| 1281 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1282 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1283 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1284 | 0, /* rightshift */ | |
| 1285 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1286 | 16, /* bitsize */ | |
| 1287 | FALSE, /* pc_relative */ | |
| 1288 | 0, /* bitpos */ | |
| 1289 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1290 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1291 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1292 | FALSE, /* partial_inplace */ | |
| 1293 | 0, /* src_mask */ | |
| 1294 | 0xfffc, /* dst_mask */ | |
| 1295 | FALSE), /* pcrel_offset */ | |
| 1296 | ||
| 727fc41e | 1297 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1298 | HOWTO (R_PPC64_TLS, |
| 1299 | 0, /* rightshift */ | |
| 1300 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1301 | 32, /* bitsize */ | |
| 1302 | FALSE, /* pc_relative */ | |
| 1303 | 0, /* bitpos */ | |
| 1304 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1305 | bfd_elf_generic_reloc, /* special_function */ | |
| 1306 | "R_PPC64_TLS", /* name */ | |
| 1307 | FALSE, /* partial_inplace */ | |
| 1308 | 0, /* src_mask */ | |
| 1309 | 0, /* dst_mask */ | |
| 1310 | FALSE), /* pcrel_offset */ | |
| 1311 | ||
| 727fc41e AM |
1312 | HOWTO (R_PPC64_TLSGD, |
| 1313 | 0, /* rightshift */ | |
| 1314 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1315 | 32, /* bitsize */ | |
| 1316 | FALSE, /* pc_relative */ | |
| 1317 | 0, /* bitpos */ | |
| 1318 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1319 | bfd_elf_generic_reloc, /* special_function */ | |
| 1320 | "R_PPC64_TLSGD", /* name */ | |
| 1321 | FALSE, /* partial_inplace */ | |
| 1322 | 0, /* src_mask */ | |
| 1323 | 0, /* dst_mask */ | |
| 1324 | FALSE), /* pcrel_offset */ | |
| 1325 | ||
| 1326 | HOWTO (R_PPC64_TLSLD, | |
| 1327 | 0, /* rightshift */ | |
| 1328 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1329 | 32, /* bitsize */ | |
| 1330 | FALSE, /* pc_relative */ | |
| 1331 | 0, /* bitpos */ | |
| 1332 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1333 | bfd_elf_generic_reloc, /* special_function */ | |
| 1334 | "R_PPC64_TLSLD", /* name */ | |
| 1335 | FALSE, /* partial_inplace */ | |
| 1336 | 0, /* src_mask */ | |
| 1337 | 0, /* dst_mask */ | |
| 1338 | FALSE), /* pcrel_offset */ | |
| 1339 | ||
| 23cedd1d AM |
1340 | /* Marker reloc for optimizing r2 save in prologue rather than on |
| 1341 | each plt call stub. */ | |
| 3b421ab3 AM |
1342 | HOWTO (R_PPC64_TOCSAVE, |
| 1343 | 0, /* rightshift */ | |
| 1344 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1345 | 32, /* bitsize */ | |
| 1346 | FALSE, /* pc_relative */ | |
| 1347 | 0, /* bitpos */ | |
| 1348 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1349 | bfd_elf_generic_reloc, /* special_function */ | |
| 1350 | "R_PPC64_TOCSAVE", /* name */ | |
| 1351 | FALSE, /* partial_inplace */ | |
| 1352 | 0, /* src_mask */ | |
| 1353 | 0, /* dst_mask */ | |
| 1354 | FALSE), /* pcrel_offset */ | |
| 1355 | ||
| 23cedd1d AM |
1356 | /* Marker relocs on inline plt call instructions. */ |
| 1357 | HOWTO (R_PPC64_PLTSEQ, | |
| 1358 | 0, /* rightshift */ | |
| 1359 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1360 | 32, /* bitsize */ | |
| 1361 | FALSE, /* pc_relative */ | |
| 1362 | 0, /* bitpos */ | |
| 1363 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1364 | bfd_elf_generic_reloc, /* special_function */ | |
| 1365 | "R_PPC64_PLTSEQ", /* name */ | |
| 1366 | FALSE, /* partial_inplace */ | |
| 1367 | 0, /* src_mask */ | |
| 1368 | 0, /* dst_mask */ | |
| 1369 | FALSE), /* pcrel_offset */ | |
| 1370 | ||
| 1371 | HOWTO (R_PPC64_PLTCALL, | |
| 1372 | 0, /* rightshift */ | |
| 1373 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1374 | 32, /* bitsize */ | |
| 1375 | FALSE, /* pc_relative */ | |
| 1376 | 0, /* bitpos */ | |
| 1377 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1378 | bfd_elf_generic_reloc, /* special_function */ | |
| 1379 | "R_PPC64_PLTCALL", /* name */ | |
| 1380 | FALSE, /* partial_inplace */ | |
| 1381 | 0, /* src_mask */ | |
| 1382 | 0, /* dst_mask */ | |
| 1383 | FALSE), /* pcrel_offset */ | |
| 1384 | ||
| 411e1bfb AM |
1385 | /* Computes the load module index of the load module that contains the |
| 1386 | definition of its TLS sym. */ | |
| 1387 | HOWTO (R_PPC64_DTPMOD64, | |
| 1388 | 0, /* rightshift */ | |
| 1389 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1390 | 64, /* bitsize */ | |
| 1391 | FALSE, /* pc_relative */ | |
| 1392 | 0, /* bitpos */ | |
| 1393 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1394 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1395 | "R_PPC64_DTPMOD64", /* name */ | |
| 1396 | FALSE, /* partial_inplace */ | |
| 1397 | 0, /* src_mask */ | |
| 1398 | ONES (64), /* dst_mask */ | |
| 1399 | FALSE), /* pcrel_offset */ | |
| 1400 | ||
| 1401 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1402 | of sym+add and the base address of the thread-local storage block that | |
| 1403 | contains the definition of sym, minus 0x8000. */ | |
| 1404 | HOWTO (R_PPC64_DTPREL64, | |
| 1405 | 0, /* rightshift */ | |
| 1406 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1407 | 64, /* bitsize */ | |
| 1408 | FALSE, /* pc_relative */ | |
| 1409 | 0, /* bitpos */ | |
| 1410 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1411 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1412 | "R_PPC64_DTPREL64", /* name */ | |
| 1413 | FALSE, /* partial_inplace */ | |
| 1414 | 0, /* src_mask */ | |
| 1415 | ONES (64), /* dst_mask */ | |
| 1416 | FALSE), /* pcrel_offset */ | |
| 1417 | ||
| 1418 | /* A 16 bit dtprel reloc. */ | |
| 1419 | HOWTO (R_PPC64_DTPREL16, | |
| 1420 | 0, /* rightshift */ | |
| 1421 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1422 | 16, /* bitsize */ | |
| 1423 | FALSE, /* pc_relative */ | |
| 1424 | 0, /* bitpos */ | |
| 1425 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1426 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1427 | "R_PPC64_DTPREL16", /* name */ | |
| 1428 | FALSE, /* partial_inplace */ | |
| 1429 | 0, /* src_mask */ | |
| 1430 | 0xffff, /* dst_mask */ | |
| 1431 | FALSE), /* pcrel_offset */ | |
| 1432 | ||
| 1433 | /* Like DTPREL16, but no overflow. */ | |
| 1434 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1435 | 0, /* rightshift */ | |
| 1436 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1437 | 16, /* bitsize */ | |
| 1438 | FALSE, /* pc_relative */ | |
| 1439 | 0, /* bitpos */ | |
| 1440 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1441 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1442 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1443 | FALSE, /* partial_inplace */ | |
| 1444 | 0, /* src_mask */ | |
| 1445 | 0xffff, /* dst_mask */ | |
| 1446 | FALSE), /* pcrel_offset */ | |
| 1447 | ||
| 1448 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1449 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1450 | 16, /* rightshift */ | |
| 1451 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1452 | 16, /* bitsize */ | |
| 1453 | FALSE, /* pc_relative */ | |
| 1454 | 0, /* bitpos */ | |
| f9c6b907 | 1455 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1456 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1457 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1458 | FALSE, /* partial_inplace */ | |
| 1459 | 0, /* src_mask */ | |
| 1460 | 0xffff, /* dst_mask */ | |
| 1461 | FALSE), /* pcrel_offset */ | |
| 1462 | ||
| 1463 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1464 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1465 | 16, /* rightshift */ | |
| 1466 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1467 | 16, /* bitsize */ | |
| 1468 | FALSE, /* pc_relative */ | |
| 1469 | 0, /* bitpos */ | |
| f9c6b907 | 1470 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1471 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1472 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1473 | FALSE, /* partial_inplace */ | |
| 1474 | 0, /* src_mask */ | |
| 1475 | 0xffff, /* dst_mask */ | |
| 1476 | FALSE), /* pcrel_offset */ | |
| 1477 | ||
| 1478 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1479 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1480 | 32, /* rightshift */ | |
| 1481 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1482 | 16, /* bitsize */ | |
| 1483 | FALSE, /* pc_relative */ | |
| 1484 | 0, /* bitpos */ | |
| 1485 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1486 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1487 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1488 | FALSE, /* partial_inplace */ | |
| 1489 | 0, /* src_mask */ | |
| 1490 | 0xffff, /* dst_mask */ | |
| 1491 | FALSE), /* pcrel_offset */ | |
| 1492 | ||
| 1493 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1494 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1495 | 32, /* rightshift */ | |
| 1496 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1497 | 16, /* bitsize */ | |
| 1498 | FALSE, /* pc_relative */ | |
| 1499 | 0, /* bitpos */ | |
| 1500 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1501 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1502 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1503 | FALSE, /* partial_inplace */ | |
| 1504 | 0, /* src_mask */ | |
| 1505 | 0xffff, /* dst_mask */ | |
| 1506 | FALSE), /* pcrel_offset */ | |
| 1507 | ||
| 1508 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1509 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1510 | 48, /* rightshift */ | |
| 1511 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1512 | 16, /* bitsize */ | |
| 1513 | FALSE, /* pc_relative */ | |
| 1514 | 0, /* bitpos */ | |
| 1515 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1516 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1517 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1518 | FALSE, /* partial_inplace */ | |
| 1519 | 0, /* src_mask */ | |
| 1520 | 0xffff, /* dst_mask */ | |
| 1521 | FALSE), /* pcrel_offset */ | |
| 1522 | ||
| 1523 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1524 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1525 | 48, /* rightshift */ | |
| 1526 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1527 | 16, /* bitsize */ | |
| 1528 | FALSE, /* pc_relative */ | |
| 1529 | 0, /* bitpos */ | |
| 1530 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1531 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1532 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1533 | FALSE, /* partial_inplace */ | |
| 1534 | 0, /* src_mask */ | |
| 1535 | 0xffff, /* dst_mask */ | |
| 1536 | FALSE), /* pcrel_offset */ | |
| 1537 | ||
| 1538 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1539 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1540 | 0, /* rightshift */ | |
| 1541 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1542 | 16, /* bitsize */ | |
| 1543 | FALSE, /* pc_relative */ | |
| 1544 | 0, /* bitpos */ | |
| 1545 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1546 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1547 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1548 | FALSE, /* partial_inplace */ | |
| 1549 | 0, /* src_mask */ | |
| 1550 | 0xfffc, /* dst_mask */ | |
| 1551 | FALSE), /* pcrel_offset */ | |
| 1552 | ||
| 1553 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1554 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1555 | 0, /* rightshift */ | |
| 1556 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1557 | 16, /* bitsize */ | |
| 1558 | FALSE, /* pc_relative */ | |
| 1559 | 0, /* bitpos */ | |
| 1560 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1561 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1562 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1563 | FALSE, /* partial_inplace */ | |
| 1564 | 0, /* src_mask */ | |
| 1565 | 0xfffc, /* dst_mask */ | |
| 1566 | FALSE), /* pcrel_offset */ | |
| 1567 | ||
| 1568 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1569 | sym+add and the value of the thread pointer (r13). */ | |
| 1570 | HOWTO (R_PPC64_TPREL64, | |
| 1571 | 0, /* rightshift */ | |
| 1572 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1573 | 64, /* bitsize */ | |
| 1574 | FALSE, /* pc_relative */ | |
| 1575 | 0, /* bitpos */ | |
| 1576 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1577 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1578 | "R_PPC64_TPREL64", /* name */ | |
| 1579 | FALSE, /* partial_inplace */ | |
| 1580 | 0, /* src_mask */ | |
| 1581 | ONES (64), /* dst_mask */ | |
| 1582 | FALSE), /* pcrel_offset */ | |
| 1583 | ||
| 1584 | /* A 16 bit tprel reloc. */ | |
| 1585 | HOWTO (R_PPC64_TPREL16, | |
| 1586 | 0, /* rightshift */ | |
| 1587 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1588 | 16, /* bitsize */ | |
| 1589 | FALSE, /* pc_relative */ | |
| 1590 | 0, /* bitpos */ | |
| 1591 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1592 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1593 | "R_PPC64_TPREL16", /* name */ | |
| 1594 | FALSE, /* partial_inplace */ | |
| 1595 | 0, /* src_mask */ | |
| 1596 | 0xffff, /* dst_mask */ | |
| 1597 | FALSE), /* pcrel_offset */ | |
| 1598 | ||
| 1599 | /* Like TPREL16, but no overflow. */ | |
| 1600 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1601 | 0, /* rightshift */ | |
| 1602 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1603 | 16, /* bitsize */ | |
| 1604 | FALSE, /* pc_relative */ | |
| 1605 | 0, /* bitpos */ | |
| 1606 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1607 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1608 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1609 | FALSE, /* partial_inplace */ | |
| 1610 | 0, /* src_mask */ | |
| 1611 | 0xffff, /* dst_mask */ | |
| 1612 | FALSE), /* pcrel_offset */ | |
| 1613 | ||
| 1614 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1615 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1616 | 16, /* rightshift */ | |
| 1617 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1618 | 16, /* bitsize */ | |
| 1619 | FALSE, /* pc_relative */ | |
| 1620 | 0, /* bitpos */ | |
| f9c6b907 | 1621 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1622 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1623 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1624 | FALSE, /* partial_inplace */ | |
| 1625 | 0, /* src_mask */ | |
| 1626 | 0xffff, /* dst_mask */ | |
| 1627 | FALSE), /* pcrel_offset */ | |
| 1628 | ||
| 1629 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1630 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1631 | 16, /* rightshift */ | |
| 1632 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1633 | 16, /* bitsize */ | |
| 1634 | FALSE, /* pc_relative */ | |
| 1635 | 0, /* bitpos */ | |
| f9c6b907 | 1636 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1637 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1638 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1639 | FALSE, /* partial_inplace */ | |
| 1640 | 0, /* src_mask */ | |
| 1641 | 0xffff, /* dst_mask */ | |
| 1642 | FALSE), /* pcrel_offset */ | |
| 1643 | ||
| 1644 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1645 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1646 | 32, /* rightshift */ | |
| 1647 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1648 | 16, /* bitsize */ | |
| 1649 | FALSE, /* pc_relative */ | |
| 1650 | 0, /* bitpos */ | |
| 1651 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1652 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1653 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1654 | FALSE, /* partial_inplace */ | |
| 1655 | 0, /* src_mask */ | |
| 1656 | 0xffff, /* dst_mask */ | |
| 1657 | FALSE), /* pcrel_offset */ | |
| 1658 | ||
| 1659 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1660 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1661 | 32, /* rightshift */ | |
| 1662 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1663 | 16, /* bitsize */ | |
| 1664 | FALSE, /* pc_relative */ | |
| 1665 | 0, /* bitpos */ | |
| 1666 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1667 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1668 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1669 | FALSE, /* partial_inplace */ | |
| 1670 | 0, /* src_mask */ | |
| 1671 | 0xffff, /* dst_mask */ | |
| 1672 | FALSE), /* pcrel_offset */ | |
| 1673 | ||
| 1674 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1675 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1676 | 48, /* rightshift */ | |
| 1677 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1678 | 16, /* bitsize */ | |
| 1679 | FALSE, /* pc_relative */ | |
| 1680 | 0, /* bitpos */ | |
| 1681 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1682 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1683 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1684 | FALSE, /* partial_inplace */ | |
| 1685 | 0, /* src_mask */ | |
| 1686 | 0xffff, /* dst_mask */ | |
| 1687 | FALSE), /* pcrel_offset */ | |
| 1688 | ||
| 1689 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1690 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1691 | 48, /* rightshift */ | |
| 1692 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1693 | 16, /* bitsize */ | |
| 1694 | FALSE, /* pc_relative */ | |
| 1695 | 0, /* bitpos */ | |
| 1696 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1697 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1698 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1699 | FALSE, /* partial_inplace */ | |
| 1700 | 0, /* src_mask */ | |
| 1701 | 0xffff, /* dst_mask */ | |
| 1702 | FALSE), /* pcrel_offset */ | |
| 1703 | ||
| 1704 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1705 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1706 | 0, /* rightshift */ | |
| 1707 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1708 | 16, /* bitsize */ | |
| 1709 | FALSE, /* pc_relative */ | |
| 1710 | 0, /* bitpos */ | |
| 1711 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1712 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1713 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1714 | FALSE, /* partial_inplace */ | |
| 1715 | 0, /* src_mask */ | |
| 1716 | 0xfffc, /* dst_mask */ | |
| 1717 | FALSE), /* pcrel_offset */ | |
| 1718 | ||
| 1719 | /* Like TPREL16_DS, but no overflow. */ | |
| 1720 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1721 | 0, /* rightshift */ | |
| 1722 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1723 | 16, /* bitsize */ | |
| 1724 | FALSE, /* pc_relative */ | |
| 1725 | 0, /* bitpos */ | |
| 1726 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1727 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1728 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1729 | FALSE, /* partial_inplace */ | |
| 1730 | 0, /* src_mask */ | |
| 1731 | 0xfffc, /* dst_mask */ | |
| 1732 | FALSE), /* pcrel_offset */ | |
| 1733 | ||
| 1734 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1735 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1736 | to the first entry relative to the TOC base (r2). */ | |
| 1737 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1738 | 0, /* rightshift */ | |
| 1739 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1740 | 16, /* bitsize */ | |
| 1741 | FALSE, /* pc_relative */ | |
| 1742 | 0, /* bitpos */ | |
| 1743 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1744 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1745 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1746 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1747 | 0, /* src_mask */ |
| 1748 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1749 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1750 | |
| 411e1bfb AM |
1751 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1752 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1753 | 0, /* rightshift */ |
| 1754 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1755 | 16, /* bitsize */ | |
| b34976b6 | 1756 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1757 | 0, /* bitpos */ |
| 1758 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1759 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1760 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1761 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1762 | 0, /* src_mask */ |
| 1763 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1764 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1765 | |
| 411e1bfb AM |
1766 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1767 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1768 | 16, /* rightshift */ |
| 1769 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1770 | 16, /* bitsize */ | |
| b34976b6 | 1771 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1772 | 0, /* bitpos */ |
| f9c6b907 | 1773 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1774 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1775 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1776 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1777 | 0, /* src_mask */ |
| 1778 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1779 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1780 | |
| 411e1bfb AM |
1781 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1782 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1783 | 16, /* rightshift */ |
| 1784 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1785 | 16, /* bitsize */ | |
| b34976b6 | 1786 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1787 | 0, /* bitpos */ |
| f9c6b907 | 1788 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1789 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1790 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1791 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1792 | 0, /* src_mask */ |
| 1793 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1794 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1795 | |
| 411e1bfb AM |
1796 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1797 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1798 | first entry relative to the TOC base (r2). */ | |
| 1799 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1800 | 0, /* rightshift */ |
| 1801 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1802 | 16, /* bitsize */ | |
| b34976b6 | 1803 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1804 | 0, /* bitpos */ |
| 411e1bfb AM |
1805 | complain_overflow_signed, /* complain_on_overflow */ |
| 1806 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1807 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1808 | FALSE, /* partial_inplace */ |
| d006db6c | 1809 | 0, /* src_mask */ |
| 411e1bfb | 1810 | 0xffff, /* dst_mask */ |
| b34976b6 | 1811 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1812 | |
| 411e1bfb AM |
1813 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1814 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1815 | 0, /* rightshift */ |
| 1816 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1817 | 16, /* bitsize */ | |
| b34976b6 | 1818 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1819 | 0, /* bitpos */ |
| 411e1bfb AM |
1820 | complain_overflow_dont, /* complain_on_overflow */ |
| 1821 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1822 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1823 | FALSE, /* partial_inplace */ |
| d006db6c | 1824 | 0, /* src_mask */ |
| 411e1bfb | 1825 | 0xffff, /* dst_mask */ |
| b34976b6 | 1826 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1827 | |
| 411e1bfb AM |
1828 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1829 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1830 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1831 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1832 | 16, /* bitsize */ | |
| b34976b6 | 1833 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1834 | 0, /* bitpos */ |
| f9c6b907 | 1835 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1836 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1837 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1838 | FALSE, /* partial_inplace */ |
| d006db6c | 1839 | 0, /* src_mask */ |
| 411e1bfb | 1840 | 0xffff, /* dst_mask */ |
| b34976b6 | 1841 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1842 | |
| 411e1bfb AM |
1843 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1844 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1845 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1846 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1847 | 16, /* bitsize */ | |
| b34976b6 | 1848 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1849 | 0, /* bitpos */ |
| f9c6b907 | 1850 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1851 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1852 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1853 | FALSE, /* partial_inplace */ |
| d006db6c | 1854 | 0, /* src_mask */ |
| 411e1bfb | 1855 | 0xffff, /* dst_mask */ |
| b34976b6 | 1856 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1857 | |
| 411e1bfb AM |
1858 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1859 | the offset to the entry relative to the TOC base (r2). */ | |
| 1860 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1861 | 0, /* rightshift */ |
| 1862 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1863 | 16, /* bitsize */ | |
| b34976b6 | 1864 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1865 | 0, /* bitpos */ |
| 411e1bfb | 1866 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1867 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1868 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1869 | FALSE, /* partial_inplace */ |
| d006db6c | 1870 | 0, /* src_mask */ |
| 5bd4f169 | 1871 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1872 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1873 | |
| 411e1bfb AM |
1874 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1875 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1876 | 0, /* rightshift */ |
| c061c2d8 AM |
1877 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1878 | 16, /* bitsize */ | |
| b34976b6 | 1879 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1880 | 0, /* bitpos */ |
| 411e1bfb AM |
1881 | complain_overflow_dont, /* complain_on_overflow */ |
| 1882 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1883 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1884 | FALSE, /* partial_inplace */ |
| d006db6c | 1885 | 0, /* src_mask */ |
| c061c2d8 | 1886 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1887 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1888 | |
| 411e1bfb AM |
1889 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1890 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1891 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1892 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1893 | 16, /* bitsize */ | |
| b34976b6 | 1894 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1895 | 0, /* bitpos */ |
| f9c6b907 | 1896 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1897 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1898 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1899 | FALSE, /* partial_inplace */ |
| d006db6c | 1900 | 0, /* src_mask */ |
| 411e1bfb | 1901 | 0xffff, /* dst_mask */ |
| b34976b6 | 1902 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1903 | |
| 411e1bfb AM |
1904 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1905 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1906 | 16, /* rightshift */ | |
| 1907 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1908 | 16, /* bitsize */ | |
| 1909 | FALSE, /* pc_relative */ | |
| 1910 | 0, /* bitpos */ | |
| f9c6b907 | 1911 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1912 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1913 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1914 | FALSE, /* partial_inplace */ | |
| 1915 | 0, /* src_mask */ | |
| 1916 | 0xffff, /* dst_mask */ | |
| 1917 | FALSE), /* pcrel_offset */ | |
| 1918 | ||
| 1919 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1920 | offset to the entry relative to the TOC base (r2). */ | |
| 1921 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1922 | 0, /* rightshift */ |
| 1923 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1924 | 16, /* bitsize */ | |
| b34976b6 | 1925 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1926 | 0, /* bitpos */ |
| 1927 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1928 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1929 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1930 | FALSE, /* partial_inplace */ |
| d006db6c | 1931 | 0, /* src_mask */ |
| ad8e1ba5 | 1932 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1933 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1934 | |
| 411e1bfb AM |
1935 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1936 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1937 | 0, /* rightshift */ |
| 1938 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1939 | 16, /* bitsize */ | |
| b34976b6 | 1940 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1941 | 0, /* bitpos */ |
| 1942 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1943 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1944 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1945 | FALSE, /* partial_inplace */ |
| d006db6c | 1946 | 0, /* src_mask */ |
| ad8e1ba5 | 1947 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1948 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1949 | |
| 411e1bfb AM |
1950 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1951 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1952 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1953 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1954 | 16, /* bitsize */ | |
| b34976b6 | 1955 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1956 | 0, /* bitpos */ |
| f9c6b907 | 1957 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1958 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1959 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1960 | FALSE, /* partial_inplace */ |
| d006db6c | 1961 | 0, /* src_mask */ |
| 411e1bfb | 1962 | 0xffff, /* dst_mask */ |
| b34976b6 | 1963 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1964 | |
| 411e1bfb AM |
1965 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1966 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1967 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1968 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1969 | 16, /* bitsize */ | |
| b34976b6 | 1970 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1971 | 0, /* bitpos */ |
| f9c6b907 | 1972 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1973 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1974 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1975 | FALSE, /* partial_inplace */ |
| d006db6c | 1976 | 0, /* src_mask */ |
| 411e1bfb | 1977 | 0xffff, /* dst_mask */ |
| b34976b6 | 1978 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1979 | |
| 25f23106 AM |
1980 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1981 | 0, /* rightshift */ | |
| 1982 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1983 | 0, /* bitsize */ | |
| 1984 | FALSE, /* pc_relative */ | |
| 1985 | 0, /* bitpos */ | |
| 1986 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1987 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1988 | "R_PPC64_JMP_IREL", /* name */ | |
| 1989 | FALSE, /* partial_inplace */ | |
| 1990 | 0, /* src_mask */ | |
| 1991 | 0, /* dst_mask */ | |
| 1992 | FALSE), /* pcrel_offset */ | |
| 1993 | ||
| e054468f AM |
1994 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1995 | 0, /* rightshift */ | |
| 1996 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1997 | 64, /* bitsize */ | |
| 1998 | FALSE, /* pc_relative */ | |
| 1999 | 0, /* bitpos */ | |
| 2000 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2001 | bfd_elf_generic_reloc, /* special_function */ | |
| 2002 | "R_PPC64_IRELATIVE", /* name */ | |
| 2003 | FALSE, /* partial_inplace */ | |
| 2004 | 0, /* src_mask */ | |
| 2005 | ONES (64), /* dst_mask */ | |
| 2006 | FALSE), /* pcrel_offset */ | |
| 2007 | ||
| 25f23106 AM |
2008 | /* A 16 bit relative relocation. */ |
| 2009 | HOWTO (R_PPC64_REL16, /* type */ | |
| 2010 | 0, /* rightshift */ | |
| 2011 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2012 | 16, /* bitsize */ | |
| 2013 | TRUE, /* pc_relative */ | |
| 2014 | 0, /* bitpos */ | |
| b80eed39 | 2015 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2016 | bfd_elf_generic_reloc, /* special_function */ |
| 2017 | "R_PPC64_REL16", /* name */ | |
| 2018 | FALSE, /* partial_inplace */ | |
| 2019 | 0, /* src_mask */ | |
| 2020 | 0xffff, /* dst_mask */ | |
| 2021 | TRUE), /* pcrel_offset */ | |
| 2022 | ||
| 2023 | /* A 16 bit relative relocation without overflow. */ | |
| 2024 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 2025 | 0, /* rightshift */ | |
| 2026 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2027 | 16, /* bitsize */ | |
| 2028 | TRUE, /* pc_relative */ | |
| 2029 | 0, /* bitpos */ | |
| 2030 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2031 | bfd_elf_generic_reloc, /* special_function */ | |
| 2032 | "R_PPC64_REL16_LO", /* name */ | |
| 2033 | FALSE, /* partial_inplace */ | |
| 2034 | 0, /* src_mask */ | |
| 2035 | 0xffff, /* dst_mask */ | |
| 2036 | TRUE), /* pcrel_offset */ | |
| 2037 | ||
| 2038 | /* The high order 16 bits of a relative address. */ | |
| 2039 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2040 | 16, /* rightshift */ | |
| 2041 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2042 | 16, /* bitsize */ | |
| 2043 | TRUE, /* pc_relative */ | |
| 2044 | 0, /* bitpos */ | |
| f9c6b907 | 2045 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2046 | bfd_elf_generic_reloc, /* special_function */ |
| 2047 | "R_PPC64_REL16_HI", /* name */ | |
| 2048 | FALSE, /* partial_inplace */ | |
| 2049 | 0, /* src_mask */ | |
| 2050 | 0xffff, /* dst_mask */ | |
| 2051 | TRUE), /* pcrel_offset */ | |
| 2052 | ||
| 2053 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2054 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2055 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2056 | 16, /* rightshift */ | |
| 2057 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2058 | 16, /* bitsize */ | |
| 2059 | TRUE, /* pc_relative */ | |
| 2060 | 0, /* bitpos */ | |
| f9c6b907 | 2061 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2062 | ppc64_elf_ha_reloc, /* special_function */ |
| 2063 | "R_PPC64_REL16_HA", /* name */ | |
| 2064 | FALSE, /* partial_inplace */ | |
| 2065 | 0, /* src_mask */ | |
| 2066 | 0xffff, /* dst_mask */ | |
| 2067 | TRUE), /* pcrel_offset */ | |
| 2068 | ||
| a680de9a PB |
2069 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2070 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2071 | 16, /* rightshift */ | |
| 2072 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2073 | 16, /* bitsize */ | |
| 2074 | TRUE, /* pc_relative */ | |
| 2075 | 0, /* bitpos */ | |
| 2076 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2077 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2078 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2079 | FALSE, /* partial_inplace */ | |
| 2080 | 0, /* src_mask */ | |
| 2081 | 0x1fffc1, /* dst_mask */ | |
| 2082 | TRUE), /* pcrel_offset */ | |
| 2083 | ||
| 7ba71655 AM |
2084 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2085 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2086 | 16, /* rightshift */ | |
| 2087 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2088 | 16, /* bitsize */ | |
| 2089 | FALSE, /* pc_relative */ | |
| 2090 | 0, /* bitpos */ | |
| 2091 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2092 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2093 | "R_PPC64_16DX_HA", /* name */ | |
| 2094 | FALSE, /* partial_inplace */ | |
| 2095 | 0, /* src_mask */ | |
| 2096 | 0x1fffc1, /* dst_mask */ | |
| 2097 | FALSE), /* pcrel_offset */ | |
| 2098 | ||
| f9c6b907 AM |
2099 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2100 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2101 | 16, /* rightshift */ | |
| 2102 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2103 | 16, /* bitsize */ | |
| 2104 | FALSE, /* pc_relative */ | |
| 2105 | 0, /* bitpos */ | |
| 2106 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2107 | bfd_elf_generic_reloc, /* special_function */ | |
| 2108 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2109 | FALSE, /* partial_inplace */ | |
| 2110 | 0, /* src_mask */ | |
| 2111 | 0xffff, /* dst_mask */ | |
| 2112 | FALSE), /* pcrel_offset */ | |
| 2113 | ||
| 2114 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2115 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2116 | 16, /* rightshift */ | |
| 2117 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2118 | 16, /* bitsize */ | |
| 2119 | FALSE, /* pc_relative */ | |
| 2120 | 0, /* bitpos */ | |
| 2121 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2122 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2123 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2124 | FALSE, /* partial_inplace */ | |
| 2125 | 0, /* src_mask */ | |
| 2126 | 0xffff, /* dst_mask */ | |
| 2127 | FALSE), /* pcrel_offset */ | |
| 2128 | ||
| 2129 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2130 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2131 | 16, /* rightshift */ | |
| 2132 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2133 | 16, /* bitsize */ | |
| 2134 | FALSE, /* pc_relative */ | |
| 2135 | 0, /* bitpos */ | |
| 2136 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2137 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2138 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2139 | FALSE, /* partial_inplace */ | |
| 2140 | 0, /* src_mask */ | |
| 2141 | 0xffff, /* dst_mask */ | |
| 2142 | FALSE), /* pcrel_offset */ | |
| 2143 | ||
| 2144 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2145 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2146 | 16, /* rightshift */ | |
| 2147 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2148 | 16, /* bitsize */ | |
| 2149 | FALSE, /* pc_relative */ | |
| 2150 | 0, /* bitpos */ | |
| 2151 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2152 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2153 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2154 | FALSE, /* partial_inplace */ | |
| 2155 | 0, /* src_mask */ | |
| 2156 | 0xffff, /* dst_mask */ | |
| 2157 | FALSE), /* pcrel_offset */ | |
| 2158 | ||
| 2159 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2160 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2161 | 16, /* rightshift */ | |
| 2162 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2163 | 16, /* bitsize */ | |
| 2164 | FALSE, /* pc_relative */ | |
| 2165 | 0, /* bitpos */ | |
| 2166 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2167 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2168 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2169 | FALSE, /* partial_inplace */ | |
| 2170 | 0, /* src_mask */ | |
| 2171 | 0xffff, /* dst_mask */ | |
| 2172 | FALSE), /* pcrel_offset */ | |
| 2173 | ||
| 2174 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2175 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2176 | 16, /* rightshift */ | |
| 2177 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2178 | 16, /* bitsize */ | |
| 2179 | FALSE, /* pc_relative */ | |
| 2180 | 0, /* bitpos */ | |
| 2181 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2182 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2183 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2184 | FALSE, /* partial_inplace */ | |
| 2185 | 0, /* src_mask */ | |
| 2186 | 0xffff, /* dst_mask */ | |
| 2187 | FALSE), /* pcrel_offset */ | |
| 2188 | ||
| 006589cf AM |
2189 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2190 | HOWTO (R_PPC64_ENTRY, | |
| 2191 | 0, /* rightshift */ | |
| 2192 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2193 | 32, /* bitsize */ | |
| 2194 | FALSE, /* pc_relative */ | |
| 2195 | 0, /* bitpos */ | |
| 2196 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2197 | bfd_elf_generic_reloc, /* special_function */ | |
| 2198 | "R_PPC64_ENTRY", /* name */ | |
| 2199 | FALSE, /* partial_inplace */ | |
| 2200 | 0, /* src_mask */ | |
| 2201 | 0, /* dst_mask */ | |
| 2202 | FALSE), /* pcrel_offset */ | |
| 2203 | ||
| 45965137 AM |
2204 | /* Like ADDR64, but use local entry point of function. */ |
| 2205 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2206 | 0, /* rightshift */ | |
| 2207 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2208 | 64, /* bitsize */ | |
| 2209 | FALSE, /* pc_relative */ | |
| 2210 | 0, /* bitpos */ | |
| 2211 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2212 | bfd_elf_generic_reloc, /* special_function */ | |
| 2213 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2214 | FALSE, /* partial_inplace */ | |
| 2215 | 0, /* src_mask */ | |
| 2216 | ONES (64), /* dst_mask */ | |
| 2217 | FALSE), /* pcrel_offset */ | |
| 2218 | ||
| 5bd4f169 AM |
2219 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2220 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2221 | 0, /* rightshift */ | |
| 2222 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2223 | 0, /* bitsize */ | |
| b34976b6 | 2224 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2225 | 0, /* bitpos */ |
| 2226 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2227 | NULL, /* special_function */ | |
| 2228 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2229 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2230 | 0, /* src_mask */ |
| 2231 | 0, /* dst_mask */ | |
| b34976b6 | 2232 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2233 | |
| 2234 | /* GNU extension to record C++ vtable member usage. */ | |
| 2235 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2236 | 0, /* rightshift */ | |
| 2237 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2238 | 0, /* bitsize */ | |
| b34976b6 | 2239 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2240 | 0, /* bitpos */ |
| 2241 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2242 | NULL, /* special_function */ | |
| 2243 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2244 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2245 | 0, /* src_mask */ |
| 2246 | 0, /* dst_mask */ | |
| b34976b6 | 2247 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2248 | }; |
| 2249 | ||
| 2250 | \f | |
| 2251 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2252 | be done. */ | |
| 2253 | ||
| 2254 | static void | |
| 4ce794b7 | 2255 | ppc_howto_init (void) |
| 5bd4f169 AM |
2256 | { |
| 2257 | unsigned int i, type; | |
| 2258 | ||
| a4b6fadd | 2259 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2260 | { |
| 2261 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2262 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2263 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2264 | } | |
| 2265 | } | |
| 2266 | ||
| 2267 | static reloc_howto_type * | |
| f3185997 | 2268 | ppc64_elf_reloc_type_lookup (bfd *abfd, |
| 4ce794b7 | 2269 | bfd_reloc_code_real_type code) |
| 5bd4f169 | 2270 | { |
| 411e1bfb | 2271 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2272 | |
| 2273 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2274 | /* Initialize howto table if needed. */ | |
| 2275 | ppc_howto_init (); | |
| 2276 | ||
| 4ce794b7 | 2277 | switch (code) |
| 5bd4f169 AM |
2278 | { |
| 2279 | default: | |
| f3185997 | 2280 | /* xgettext:c-format */ |
| e8f5af78 | 2281 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code); |
| f3185997 | 2282 | bfd_set_error (bfd_error_bad_value); |
| 4ce794b7 | 2283 | return NULL; |
| 5bd4f169 | 2284 | |
| 411e1bfb AM |
2285 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2286 | break; | |
| 2287 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2288 | break; | |
| 2289 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2290 | break; | |
| 2291 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2292 | break; | |
| 2293 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2294 | break; | |
| 2295 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2296 | break; | |
| f9c6b907 AM |
2297 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2298 | break; | |
| 411e1bfb | 2299 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2300 | break; |
| f9c6b907 AM |
2301 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2302 | break; | |
| 411e1bfb | 2303 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2316 | break; |
| 411e1bfb | 2317 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2318 | break; |
| 411e1bfb | 2319 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2320 | break; |
| 411e1bfb | 2321 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2328 | break; |
| 411e1bfb | 2329 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2330 | break; |
| 411e1bfb | 2331 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2332 | break; |
| 411e1bfb | 2333 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2334 | break; |
| 411e1bfb | 2335 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb | 2337 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2338 | break; |
| 411e1bfb | 2339 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2340 | break; |
| 411e1bfb | 2341 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2342 | break; |
| 411e1bfb | 2343 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2344 | break; |
| 411e1bfb | 2345 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2346 | break; |
| 411e1bfb | 2347 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2348 | break; |
| 411e1bfb | 2349 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2350 | break; |
| 411e1bfb | 2351 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2352 | break; |
| 411e1bfb | 2353 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2354 | break; |
| 411e1bfb | 2355 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2356 | break; |
| 411e1bfb | 2357 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2358 | break; |
| 411e1bfb | 2359 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2360 | break; |
| 411e1bfb | 2361 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2362 | break; |
| 411e1bfb | 2363 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2364 | break; |
| 411e1bfb | 2365 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2366 | break; |
| 411e1bfb | 2367 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2368 | break; |
| 411e1bfb | 2369 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2370 | break; |
| 411e1bfb | 2371 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2372 | break; |
| 411e1bfb | 2373 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2374 | break; |
| 411e1bfb | 2375 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2376 | break; |
| 411e1bfb | 2377 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2378 | break; |
| 411e1bfb | 2379 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2380 | break; |
| 411e1bfb | 2381 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2382 | break; |
| 411e1bfb | 2383 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2384 | break; |
| 411e1bfb | 2385 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2386 | break; |
| 411e1bfb | 2387 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2388 | break; |
| 411e1bfb | 2389 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2390 | break; |
| 411e1bfb | 2391 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2392 | break; |
| 411e1bfb | 2393 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2394 | break; |
| 411e1bfb | 2395 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2396 | break; |
| 411e1bfb | 2397 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2398 | break; |
| 411e1bfb | 2399 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2400 | break; |
| 411e1bfb | 2401 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2402 | break; |
| 411e1bfb | 2403 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2404 | break; |
| 411e1bfb | 2405 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2406 | break; |
| 411e1bfb | 2407 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2408 | break; |
| 727fc41e AM |
2409 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2410 | break; | |
| 2411 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2412 | break; | |
| 411e1bfb | 2413 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2414 | break; |
| 411e1bfb | 2415 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2416 | break; |
| 411e1bfb | 2417 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2418 | break; |
| 411e1bfb | 2419 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2420 | break; |
| f9c6b907 AM |
2421 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2422 | break; | |
| 411e1bfb | 2423 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2424 | break; |
| f9c6b907 AM |
2425 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2426 | break; | |
| 411e1bfb | 2427 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2428 | break; |
| 411e1bfb AM |
2429 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2430 | break; | |
| 2431 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2432 | break; | |
| 2433 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2434 | break; | |
| f9c6b907 AM |
2435 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2436 | break; | |
| 411e1bfb AM |
2437 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2438 | break; | |
| f9c6b907 AM |
2439 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2440 | break; | |
| 411e1bfb AM |
2441 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2442 | break; | |
| 2443 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2444 | break; | |
| 2445 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2446 | break; | |
| 2447 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2448 | break; | |
| 2449 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2450 | break; | |
| 2451 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2452 | break; | |
| 2453 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2454 | break; | |
| 2455 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2456 | break; | |
| 2457 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2458 | break; | |
| 2459 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2460 | break; | |
| 2461 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2462 | break; | |
| 2463 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2464 | break; | |
| 2465 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2466 | break; | |
| 2467 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2468 | break; | |
| 2469 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2470 | break; | |
| 2471 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2472 | break; | |
| 2473 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2474 | break; | |
| 2475 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2476 | break; | |
| 2477 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2478 | break; | |
| 2479 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2480 | break; | |
| 2481 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2482 | break; | |
| 2483 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2484 | break; | |
| 2485 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2486 | break; | |
| 2487 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2488 | break; | |
| 2489 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2490 | break; | |
| 2491 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2492 | break; | |
| 2493 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2494 | break; | |
| 2495 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2496 | break; | |
| 2497 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2498 | break; | |
| 25f23106 AM |
2499 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2500 | break; | |
| 2501 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2502 | break; | |
| 2503 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2504 | break; | |
| 2505 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2506 | break; | |
| 7ba71655 AM |
2507 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2508 | break; | |
| a680de9a PB |
2509 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2510 | break; | |
| 006589cf AM |
2511 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2512 | break; | |
| 45965137 AM |
2513 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2514 | break; | |
| 411e1bfb AM |
2515 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2516 | break; | |
| 2517 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2518 | break; |
| 2519 | } | |
| 2520 | ||
| 4ce794b7 | 2521 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2522 | }; |
| 2523 | ||
| 157090f7 AM |
2524 | static reloc_howto_type * |
| 2525 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2526 | const char *r_name) | |
| 2527 | { | |
| 2528 | unsigned int i; | |
| 2529 | ||
| a4b6fadd | 2530 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2531 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2532 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2533 | return &ppc64_elf_howto_raw[i]; | |
| 2534 | ||
| f3185997 | 2535 | |
| 157090f7 AM |
2536 | return NULL; |
| 2537 | } | |
| 2538 | ||
| 5bd4f169 AM |
2539 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2540 | ||
| f3185997 | 2541 | static bfd_boolean |
| 4aef7643 | 2542 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2543 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2544 | { |
| 65f38f15 AM |
2545 | unsigned int type; |
| 2546 | ||
| ef60b7ff | 2547 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2548 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2549 | ppc_howto_init (); |
| 2550 | ||
| 65f38f15 | 2551 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2552 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2553 | { |
| 695344c0 | 2554 | /* xgettext:c-format */ |
| 0aa13fee | 2555 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| cf97bcb0 | 2556 | abfd, type); |
| f3185997 NC |
2557 | bfd_set_error (bfd_error_bad_value); |
| 2558 | return FALSE; | |
| d0fb9a8d | 2559 | } |
| 65f38f15 | 2560 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| f3185997 NC |
2561 | if (cache_ptr->howto == NULL || cache_ptr->howto->name == NULL) |
| 2562 | { | |
| 2563 | /* xgettext:c-format */ | |
| 2564 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), | |
| 2565 | abfd, type); | |
| 2566 | bfd_set_error (bfd_error_bad_value); | |
| 2567 | return FALSE; | |
| 2568 | } | |
| 2569 | ||
| 2570 | return TRUE; | |
| 5bd4f169 AM |
2571 | } |
| 2572 | ||
| 04c9666a | 2573 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2574 | |
| 2575 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2576 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2577 | void *data, asection *input_section, | |
| 2578 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2579 | { |
| a680de9a PB |
2580 | enum elf_ppc64_reloc_type r_type; |
| 2581 | long insn; | |
| 2582 | bfd_size_type octets; | |
| 3de43e7b | 2583 | bfd_vma value; |
| a680de9a | 2584 | |
| 805fc799 AM |
2585 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2586 | call the generic function. Any adjustment will be done at final | |
| 2587 | link time. */ | |
| 2588 | if (output_bfd != NULL) | |
| cedb70c5 | 2589 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2590 | input_section, output_bfd, error_message); |
| 2591 | ||
| 2592 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2593 | We won't actually be using the low 16 bits, so trashing them | |
| 2594 | doesn't matter. */ | |
| 2595 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2596 | r_type = reloc_entry->howto->type; |
| 2597 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2598 | return bfd_reloc_continue; | |
| 2599 | ||
| 2600 | value = 0; | |
| 2601 | if (!bfd_is_com_section (symbol->section)) | |
| 2602 | value = symbol->value; | |
| 2603 | value += (reloc_entry->addend | |
| 2604 | + symbol->section->output_offset | |
| 2605 | + symbol->section->output_section->vma); | |
| 2606 | value -= (reloc_entry->address | |
| 2607 | + input_section->output_offset | |
| 2608 | + input_section->output_section->vma); | |
| 3de43e7b | 2609 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2610 | |
| 2611 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2612 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2613 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2614 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2615 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2616 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2617 | return bfd_reloc_overflow; |
| 2618 | return bfd_reloc_ok; | |
| 805fc799 | 2619 | } |
| 5bd4f169 | 2620 | |
| 2441e016 AM |
2621 | static bfd_reloc_status_type |
| 2622 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2623 | void *data, asection *input_section, | |
| 2624 | bfd *output_bfd, char **error_message) | |
| 2625 | { | |
| 2626 | if (output_bfd != NULL) | |
| 2627 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2628 | input_section, output_bfd, error_message); | |
| 2629 | ||
| 699733f6 AM |
2630 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2631 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2632 | { |
| 2633 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2634 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2635 | NULL, NULL, FALSE); |
| 2441e016 AM |
2636 | if (dest != (bfd_vma) -1) |
| 2637 | reloc_entry->addend = dest - (symbol->value | |
| 2638 | + symbol->section->output_section->vma | |
| 2639 | + symbol->section->output_offset); | |
| 2640 | } | |
| 810d4e75 AM |
2641 | else |
| 2642 | { | |
| 2643 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2644 | ||
| 2645 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2646 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2647 | && abiversion (symbol->section->owner) >= 2) |
| 2648 | { | |
| 2649 | unsigned int i; | |
| 2650 | ||
| 2651 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2652 | { | |
| 2653 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2654 | ||
| 2655 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2656 | { | |
| 2657 | elfsym = (elf_symbol_type *) symdef; | |
| 2658 | break; | |
| 2659 | } | |
| 2660 | } | |
| 2661 | } | |
| 2662 | reloc_entry->addend | |
| 2663 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2664 | } | |
| 2441e016 AM |
2665 | return bfd_reloc_continue; |
| 2666 | } | |
| 2667 | ||
| 805fc799 | 2668 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2669 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2670 | void *data, asection *input_section, | |
| 2671 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2672 | { |
| 2673 | long insn; | |
| 04c9666a | 2674 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2675 | bfd_size_type octets; |
| 794e51c0 AM |
2676 | /* Assume 'at' branch hints. */ |
| 2677 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2678 | |
| 2679 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2680 | call the generic function. Any adjustment will be done at final | |
| 2681 | link time. */ | |
| 5bd4f169 | 2682 | if (output_bfd != NULL) |
| cedb70c5 | 2683 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2684 | input_section, output_bfd, error_message); |
| 2685 | ||
| 2686 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2687 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2688 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2689 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2690 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2691 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2692 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2693 | |
| 794e51c0 | 2694 | if (is_isa_v2) |
| 5bd4f169 | 2695 | { |
| 805fc799 AM |
2696 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2697 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2698 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2699 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2700 | insn |= 0x02 << 21; | |
| 2701 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2702 | insn |= 0x08 << 21; | |
| 2703 | else | |
| 2441e016 | 2704 | goto out; |
| 5bd4f169 | 2705 | } |
| 805fc799 AM |
2706 | else |
| 2707 | { | |
| 2708 | bfd_vma target = 0; | |
| 2709 | bfd_vma from; | |
| 5bd4f169 | 2710 | |
| 805fc799 AM |
2711 | if (!bfd_is_com_section (symbol->section)) |
| 2712 | target = symbol->value; | |
| 2713 | target += symbol->section->output_section->vma; | |
| 2714 | target += symbol->section->output_offset; | |
| 2715 | target += reloc_entry->addend; | |
| 5bd4f169 | 2716 | |
| 805fc799 AM |
2717 | from = (reloc_entry->address |
| 2718 | + input_section->output_offset | |
| 2719 | + input_section->output_section->vma); | |
| 5bd4f169 | 2720 | |
| 805fc799 AM |
2721 | /* Invert 'y' bit if not the default. */ |
| 2722 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2723 | insn ^= 0x01 << 21; | |
| 2724 | } | |
| 4ce794b7 | 2725 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2726 | out: |
| 2727 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2728 | input_section, output_bfd, error_message); | |
| 805fc799 | 2729 | } |
| 5bd4f169 | 2730 | |
| 805fc799 | 2731 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2732 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2733 | void *data, asection *input_section, | |
| 2734 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2735 | { |
| 2736 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2737 | call the generic function. Any adjustment will be done at final | |
| 2738 | link time. */ | |
| 2739 | if (output_bfd != NULL) | |
| cedb70c5 | 2740 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2741 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2742 | |
| 805fc799 AM |
2743 | /* Subtract the symbol section base address. */ |
| 2744 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2745 | return bfd_reloc_continue; |
| 2746 | } | |
| 2747 | ||
| 805fc799 | 2748 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2749 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2750 | void *data, asection *input_section, | |
| 2751 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2752 | { |
| 2753 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2754 | call the generic function. Any adjustment will be done at final | |
| 2755 | link time. */ | |
| 2756 | if (output_bfd != NULL) | |
| cedb70c5 | 2757 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2758 | input_section, output_bfd, error_message); |
| 2759 | ||
| 2760 | /* Subtract the symbol section base address. */ | |
| 2761 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2762 | ||
| 2763 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2764 | reloc_entry->addend += 0x8000; | |
| 2765 | return bfd_reloc_continue; | |
| 2766 | } | |
| 2767 | ||
| 2768 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2769 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2770 | void *data, asection *input_section, | |
| 2771 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2772 | { |
| 2773 | bfd_vma TOCstart; | |
| 2774 | ||
| 2775 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2776 | call the generic function. Any adjustment will be done at final | |
| 2777 | link time. */ | |
| 2778 | if (output_bfd != NULL) | |
| cedb70c5 | 2779 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2780 | input_section, output_bfd, error_message); |
| 2781 | ||
| 2782 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2783 | if (TOCstart == 0) | |
| 1c865ab2 | 2784 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2785 | |
| 2786 | /* Subtract the TOC base address. */ | |
| 2787 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2788 | return bfd_reloc_continue; | |
| 2789 | } | |
| 2790 | ||
| 2791 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2792 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2793 | void *data, asection *input_section, | |
| 2794 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2795 | { |
| 2796 | bfd_vma TOCstart; | |
| 2797 | ||
| 2798 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2799 | call the generic function. Any adjustment will be done at final | |
| 2800 | link time. */ | |
| 2801 | if (output_bfd != NULL) | |
| cedb70c5 | 2802 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2803 | input_section, output_bfd, error_message); |
| 2804 | ||
| 2805 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2806 | if (TOCstart == 0) | |
| 1c865ab2 | 2807 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2808 | |
| 2809 | /* Subtract the TOC base address. */ | |
| 2810 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2811 | ||
| 2812 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2813 | reloc_entry->addend += 0x8000; | |
| 2814 | return bfd_reloc_continue; | |
| 2815 | } | |
| 2816 | ||
| 2817 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2818 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2819 | void *data, asection *input_section, | |
| 2820 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2821 | { |
| 2822 | bfd_vma TOCstart; | |
| 2823 | bfd_size_type octets; | |
| 2824 | ||
| 2825 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2826 | call the generic function. Any adjustment will be done at final | |
| 2827 | link time. */ | |
| 2828 | if (output_bfd != NULL) | |
| cedb70c5 | 2829 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2830 | input_section, output_bfd, error_message); |
| 2831 | ||
| 2832 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2833 | if (TOCstart == 0) | |
| 1c865ab2 | 2834 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2835 | |
| 2836 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2837 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2838 | return bfd_reloc_ok; | |
| 2839 | } | |
| 2840 | ||
| 2841 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2842 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2843 | void *data, asection *input_section, | |
| 2844 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2845 | { |
| 2846 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2847 | call the generic function. Any adjustment will be done at final | |
| 2848 | link time. */ | |
| 2849 | if (output_bfd != NULL) | |
| cedb70c5 | 2850 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2851 | input_section, output_bfd, error_message); |
| 2852 | ||
| 2853 | if (error_message != NULL) | |
| 2854 | { | |
| 2855 | static char buf[60]; | |
| 2856 | sprintf (buf, "generic linker can't handle %s", | |
| 2857 | reloc_entry->howto->name); | |
| 2858 | *error_message = buf; | |
| 2859 | } | |
| 2860 | return bfd_reloc_dangerous; | |
| 2861 | } | |
| 2862 | ||
| 927be08e AM |
2863 | /* Track GOT entries needed for a given symbol. We might need more |
| 2864 | than one got entry per symbol. */ | |
| 2865 | struct got_entry | |
| 2866 | { | |
| 2867 | struct got_entry *next; | |
| 2868 | ||
| 2869 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2870 | bfd_vma addend; | |
| 2871 | ||
| 2872 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2873 | symbol referenced from different input files. This is to support | |
| 2874 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2875 | from one input file to another. After partitioning into TOC groups | |
| 2876 | we merge entries within the group. | |
| 2877 | ||
| 2878 | Point to the BFD owning this GOT entry. */ | |
| 2879 | bfd *owner; | |
| 2880 | ||
| 2881 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2882 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2883 | unsigned char tls_type; |
| 927be08e AM |
2884 | |
| 2885 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2886 | unsigned char is_indirect; |
| 927be08e AM |
2887 | |
| 2888 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2889 | union | |
| 2890 | { | |
| 2891 | bfd_signed_vma refcount; | |
| 2892 | bfd_vma offset; | |
| 2893 | struct got_entry *ent; | |
| 2894 | } got; | |
| 2895 | }; | |
| 2896 | ||
| 2897 | /* The same for PLT. */ | |
| 2898 | struct plt_entry | |
| 2899 | { | |
| 2900 | struct plt_entry *next; | |
| 2901 | ||
| 2902 | bfd_vma addend; | |
| 2903 | ||
| 2904 | union | |
| 2905 | { | |
| 2906 | bfd_signed_vma refcount; | |
| 2907 | bfd_vma offset; | |
| 2908 | } plt; | |
| 2909 | }; | |
| 2910 | ||
| e717da7e AM |
2911 | struct ppc64_elf_obj_tdata |
| 2912 | { | |
| 2913 | struct elf_obj_tdata elf; | |
| 2914 | ||
| 2915 | /* Shortcuts to dynamic linker sections. */ | |
| 2916 | asection *got; | |
| 2917 | asection *relgot; | |
| 2918 | ||
| b3fac117 AM |
2919 | /* Used during garbage collection. We attach global symbols defined |
| 2920 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2921 | asection *deleted_section; | |
| 81688140 | 2922 | |
| 927be08e | 2923 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2924 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2925 | struct got_entry tlsld_got; |
| 8860955f | 2926 | |
| 729eabd5 AM |
2927 | union { |
| 2928 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2929 | Elf_Internal_Rela *relocs; | |
| 2930 | ||
| 2931 | /* Section contents. */ | |
| 2932 | bfd_byte *contents; | |
| 2933 | } opd; | |
| d77c8a4b AM |
2934 | |
| 2935 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2936 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2937 | unsigned int has_small_toc_reloc : 1; |
| 2938 | ||
| 560c8763 AM |
2939 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2940 | instruction not one we handle. */ | |
| 2941 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2942 | }; |
| 2943 | ||
| 2944 | #define ppc64_elf_tdata(bfd) \ | |
| 2945 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2946 | ||
| 2947 | #define ppc64_tlsld_got(bfd) \ | |
| 2948 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2949 | ||
| 0c8d6e5c AM |
2950 | #define is_ppc64_elf(bfd) \ |
| 2951 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2952 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2953 | |
| e717da7e AM |
2954 | /* Override the generic function because we store some extras. */ |
| 2955 | ||
| 2956 | static bfd_boolean | |
| 2957 | ppc64_elf_mkobject (bfd *abfd) | |
| 2958 | { | |
| 0ffa91dd | 2959 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2960 | PPC64_ELF_DATA); |
| e717da7e AM |
2961 | } |
| 2962 | ||
| feee612b | 2963 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2964 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2965 | |
| b34976b6 | 2966 | static bfd_boolean |
| 4ce794b7 | 2967 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2968 | { |
| 14b57c7c AM |
2969 | if (!abfd->arch_info->the_default) |
| 2970 | return TRUE; | |
| 2971 | ||
| 2972 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2973 | { |
| 2974 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2975 | ||
| 2976 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2977 | { | |
| 2978 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2979 | abfd->arch_info = abfd->arch_info->next; | |
| 2980 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2981 | } | |
| 2982 | } | |
| 14b57c7c | 2983 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2984 | } |
| 2985 | ||
| d37c89e5 AM |
2986 | /* Support for core dump NOTE sections. */ |
| 2987 | ||
| 2988 | static bfd_boolean | |
| 2989 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2990 | { | |
| eea6121a | 2991 | size_t offset, size; |
| d37c89e5 AM |
2992 | |
| 2993 | if (note->descsz != 504) | |
| 2994 | return FALSE; | |
| 2995 | ||
| 2996 | /* pr_cursig */ | |
| 228e534f | 2997 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2998 | |
| 2999 | /* pr_pid */ | |
| 228e534f | 3000 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
3001 | |
| 3002 | /* pr_reg */ | |
| 3003 | offset = 112; | |
| eea6121a | 3004 | size = 384; |
| d37c89e5 AM |
3005 | |
| 3006 | /* Make a ".reg/999" section. */ | |
| 3007 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 3008 | size, note->descpos + offset); |
| d37c89e5 AM |
3009 | } |
| 3010 | ||
| 3011 | static bfd_boolean | |
| 3012 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 3013 | { | |
| 3014 | if (note->descsz != 136) | |
| 3015 | return FALSE; | |
| 3016 | ||
| 228e534f | 3017 | elf_tdata (abfd)->core->pid |
| bc989cdc | 3018 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 3019 | elf_tdata (abfd)->core->program |
| d37c89e5 | 3020 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 3021 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
3022 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 3023 | ||
| 3024 | return TRUE; | |
| 3025 | } | |
| 3026 | ||
| 183e98be AM |
3027 | static char * |
| 3028 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 3029 | ...) | |
| 3030 | { | |
| 3031 | switch (note_type) | |
| 3032 | { | |
| 3033 | default: | |
| 3034 | return NULL; | |
| 3035 | ||
| 3036 | case NT_PRPSINFO: | |
| 3037 | { | |
| 3038 | char data[136]; | |
| 3039 | va_list ap; | |
| 3040 | ||
| 3041 | va_start (ap, note_type); | |
| 75cd47ed | 3042 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
3043 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 3044 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 3045 | va_end (ap); | |
| 3046 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3047 | "CORE", note_type, data, sizeof (data)); | |
| 3048 | } | |
| 3049 | ||
| 3050 | case NT_PRSTATUS: | |
| 3051 | { | |
| 3052 | char data[504]; | |
| 3053 | va_list ap; | |
| 3054 | long pid; | |
| 3055 | int cursig; | |
| 3056 | const void *greg; | |
| 3057 | ||
| 3058 | va_start (ap, note_type); | |
| 3059 | memset (data, 0, 112); | |
| 3060 | pid = va_arg (ap, long); | |
| 3061 | bfd_put_32 (abfd, pid, data + 32); | |
| 3062 | cursig = va_arg (ap, int); | |
| 3063 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3064 | greg = va_arg (ap, const void *); | |
| 3065 | memcpy (data + 112, greg, 384); | |
| 3066 | memset (data + 496, 0, 8); | |
| 3067 | va_end (ap); | |
| 3068 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3069 | "CORE", note_type, data, sizeof (data)); | |
| 3070 | } | |
| 3071 | } | |
| 3072 | } | |
| 3073 | ||
| 5d35169e AM |
3074 | /* Add extra PPC sections. */ |
| 3075 | ||
| b35d266b | 3076 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3077 | { |
| 07d6d2b8 AM |
3078 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3079 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3080 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 AM |
3081 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 3082 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3083 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 | 3084 | { NULL, 0, 0, 0, 0 } |
| 5d35169e AM |
3085 | }; |
| 3086 | ||
| 7c8fe5c4 AM |
3087 | enum _ppc64_sec_type { |
| 3088 | sec_normal = 0, | |
| 3089 | sec_opd = 1, | |
| 3090 | sec_toc = 2 | |
| 3091 | }; | |
| 3092 | ||
| f0abc2a1 AM |
3093 | struct _ppc64_elf_section_data |
| 3094 | { | |
| 3095 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3096 | |
| f0abc2a1 AM |
3097 | union |
| 3098 | { | |
| 51aecdc5 AM |
3099 | /* An array with one entry for each opd function descriptor, |
| 3100 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3101 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3102 | struct _opd_sec_data |
| 3103 | { | |
| 3104 | /* Points to the function code section for local opd entries. */ | |
| 3105 | asection **func_sec; | |
| 3106 | ||
| 3107 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3108 | long *adjust; | |
| 3109 | } opd; | |
| 7c8fe5c4 | 3110 | |
| 3a71aa26 AM |
3111 | /* An array for toc sections, indexed by offset/8. */ |
| 3112 | struct _toc_sec_data | |
| 3113 | { | |
| 3114 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3115 | unsigned *symndx; | |
| 3116 | ||
| 3117 | /* And the relocation addend. */ | |
| 3118 | bfd_vma *add; | |
| 3119 | } toc; | |
| 7c8fe5c4 AM |
3120 | } u; |
| 3121 | ||
| 3122 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3123 | |
| 7c8fe5c4 AM |
3124 | /* Flag set when small branches are detected. Used to |
| 3125 | select suitable defaults for the stub group size. */ | |
| 3126 | unsigned int has_14bit_branch:1; | |
| 3e04d765 AM |
3127 | |
| 3128 | /* Flag set when PLTCALL relocs are detected. */ | |
| 3129 | unsigned int has_pltcall:1; | |
| f0abc2a1 AM |
3130 | }; |
| 3131 | ||
| 3132 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3133 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3134 | |
| 3135 | static bfd_boolean | |
| 4ce794b7 | 3136 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3137 | { |
| f592407e AM |
3138 | if (!sec->used_by_bfd) |
| 3139 | { | |
| 3140 | struct _ppc64_elf_section_data *sdata; | |
| 3141 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3142 | |
| f592407e AM |
3143 | sdata = bfd_zalloc (abfd, amt); |
| 3144 | if (sdata == NULL) | |
| 3145 | return FALSE; | |
| 3146 | sec->used_by_bfd = sdata; | |
| 3147 | } | |
| f0abc2a1 AM |
3148 | |
| 3149 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3150 | } | |
| 4025353c | 3151 | |
| 74f0fb50 | 3152 | static struct _opd_sec_data * |
| 4025353c AM |
3153 | get_opd_info (asection * sec) |
| 3154 | { | |
| 3155 | if (sec != NULL | |
| 3156 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3157 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3158 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3159 | return NULL; |
| 3160 | } | |
| 90e3cdf2 JJ |
3161 | \f |
| 3162 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3163 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3164 | static asection *synthetic_opd; |
| 90e3cdf2 | 3165 | |
| 699733f6 | 3166 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3167 | |
| 3168 | static int | |
| 3169 | compare_symbols (const void *ap, const void *bp) | |
| 3170 | { | |
| 3171 | const asymbol *a = * (const asymbol **) ap; | |
| 3172 | const asymbol *b = * (const asymbol **) bp; | |
| 3173 | ||
| 699733f6 AM |
3174 | /* Section symbols first. */ |
| 3175 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3176 | return -1; |
| 699733f6 | 3177 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3178 | return 1; |
| 3179 | ||
| 699733f6 | 3180 | /* then .opd symbols. */ |
| cd285db5 AM |
3181 | if (synthetic_opd != NULL) |
| 3182 | { | |
| 3183 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3184 | && strcmp (b->section->name, ".opd") != 0) | |
| 3185 | return -1; | |
| 3186 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3187 | && strcmp (b->section->name, ".opd") == 0) | |
| 3188 | return 1; | |
| 3189 | } | |
| 90e3cdf2 | 3190 | |
| 699733f6 | 3191 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3192 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3193 | == (SEC_CODE | SEC_ALLOC) | |
| 3194 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3195 | != (SEC_CODE | SEC_ALLOC)) | |
| 3196 | return -1; | |
| 3197 | ||
| 3198 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3199 | != (SEC_CODE | SEC_ALLOC) | |
| 3200 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3201 | == (SEC_CODE | SEC_ALLOC)) | |
| 3202 | return 1; | |
| 3203 | ||
| 3204 | if (synthetic_relocatable) | |
| 3205 | { | |
| 3206 | if (a->section->id < b->section->id) | |
| 3207 | return -1; | |
| 3208 | ||
| 3209 | if (a->section->id > b->section->id) | |
| 3210 | return 1; | |
| 3211 | } | |
| 3212 | ||
| 3213 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3214 | return -1; | |
| 3215 | ||
| 3216 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3217 | return 1; | |
| 3218 | ||
| 4d35a0aa AM |
3219 | /* For syms with the same value, prefer strong dynamic global function |
| 3220 | syms over other syms. */ | |
| 3221 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3222 | return -1; | |
| 3223 | ||
| 3224 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3225 | return 1; | |
| 3226 | ||
| 3227 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3228 | return -1; | |
| 3229 | ||
| 3230 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3231 | return 1; | |
| 3232 | ||
| 3233 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3234 | return -1; | |
| 3235 | ||
| 3236 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3237 | return 1; | |
| 3238 | ||
| 3239 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3240 | return -1; | |
| 3241 | ||
| 3242 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3243 | return 1; | |
| 3244 | ||
| aaed6f5b | 3245 | return a > b; |
| 90e3cdf2 JJ |
3246 | } |
| 3247 | ||
| 699733f6 | 3248 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3249 | |
| 699733f6 | 3250 | static asymbol * |
| 7292b3ac | 3251 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3252 | { |
| 699733f6 | 3253 | long mid; |
| 90e3cdf2 | 3254 | |
| 7292b3ac | 3255 | if (id == (unsigned) -1) |
| 699733f6 AM |
3256 | { |
| 3257 | while (lo < hi) | |
| 3258 | { | |
| 3259 | mid = (lo + hi) >> 1; | |
| 3260 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3261 | lo = mid + 1; | |
| 3262 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3263 | hi = mid; | |
| 3264 | else | |
| 3265 | return syms[mid]; | |
| 3266 | } | |
| 3267 | } | |
| 3268 | else | |
| 3269 | { | |
| 3270 | while (lo < hi) | |
| 3271 | { | |
| 3272 | mid = (lo + hi) >> 1; | |
| 3273 | if (syms[mid]->section->id < id) | |
| 3274 | lo = mid + 1; | |
| 3275 | else if (syms[mid]->section->id > id) | |
| 3276 | hi = mid; | |
| 3277 | else if (syms[mid]->value < value) | |
| 3278 | lo = mid + 1; | |
| 3279 | else if (syms[mid]->value > value) | |
| 3280 | hi = mid; | |
| 3281 | else | |
| 3282 | return syms[mid]; | |
| 3283 | } | |
| 3284 | } | |
| 3285 | return NULL; | |
| 90e3cdf2 JJ |
3286 | } |
| 3287 | ||
| 468392fb AM |
3288 | static bfd_boolean |
| 3289 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3290 | { | |
| 3291 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3292 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3293 | && section->vma <= vma | |
| 3294 | && vma < section->vma + section->size); | |
| 3295 | } | |
| 3296 | ||
| 699733f6 | 3297 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3298 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3299 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3300 | |
| 3301 | static long | |
| a7535cf3 AM |
3302 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3303 | long static_count, asymbol **static_syms, | |
| 3304 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3305 | asymbol **ret) |
| 90e3cdf2 JJ |
3306 | { |
| 3307 | asymbol *s; | |
| 0ccf57bd | 3308 | size_t i, j, count; |
| 90e3cdf2 | 3309 | char *names; |
| 0ccf57bd | 3310 | size_t symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3311 | asection *opd = NULL; |
| 90e3cdf2 | 3312 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3313 | asymbol **syms; |
| ee67d69a | 3314 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3315 | |
| 3316 | *ret = NULL; | |
| 3317 | ||
| ee67d69a AM |
3318 | if (abi < 2) |
| 3319 | { | |
| 3320 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3321 | if (opd == NULL && abi == 1) | |
| 3322 | return 0; | |
| 3323 | } | |
| 90e3cdf2 | 3324 | |
| a5259595 AM |
3325 | syms = NULL; |
| 3326 | codesecsym = 0; | |
| 3327 | codesecsymend = 0; | |
| 3328 | secsymend = 0; | |
| 3329 | opdsymend = 0; | |
| 3330 | symcount = 0; | |
| 3331 | if (opd != NULL) | |
| c9727e01 | 3332 | { |
| a5259595 AM |
3333 | symcount = static_count; |
| 3334 | if (!relocatable) | |
| 3335 | symcount += dyn_count; | |
| 3336 | if (symcount == 0) | |
| 3337 | return 0; | |
| c9727e01 | 3338 | |
| a5259595 AM |
3339 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3340 | if (syms == NULL) | |
| 3341 | return -1; | |
| 90e3cdf2 | 3342 | |
| a5259595 AM |
3343 | if (!relocatable && static_count != 0 && dyn_count != 0) |
| 3344 | { | |
| 3345 | /* Use both symbol tables. */ | |
| 3346 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3347 | memcpy (syms + static_count, dyn_syms, | |
| 3348 | (dyn_count + 1) * sizeof (*syms)); | |
| 3349 | } | |
| 3350 | else if (!relocatable && static_count == 0) | |
| 3351 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3352 | else | |
| 3353 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 90e3cdf2 | 3354 | |
| 0ccf57bd AM |
3355 | /* Trim uninteresting symbols. Interesting symbols are section, |
| 3356 | function, and notype symbols. */ | |
| 3357 | for (i = 0, j = 0; i < symcount; ++i) | |
| 3358 | if ((syms[i]->flags & (BSF_FILE | BSF_OBJECT | BSF_THREAD_LOCAL | |
| 3359 | | BSF_RELC | BSF_SRELC)) == 0) | |
| 3360 | syms[j++] = syms[i]; | |
| 3361 | symcount = j; | |
| 3362 | ||
| a5259595 AM |
3363 | synthetic_relocatable = relocatable; |
| 3364 | synthetic_opd = opd; | |
| 3365 | qsort (syms, symcount, sizeof (*syms), compare_symbols); | |
| 90e3cdf2 | 3366 | |
| a5259595 AM |
3367 | if (!relocatable && symcount > 1) |
| 3368 | { | |
| bfa5bd2a PA |
3369 | /* Trim duplicate syms, since we may have merged the normal |
| 3370 | and dynamic symbols. Actually, we only care about syms | |
| 3371 | that have different values, so trim any with the same | |
| 3372 | value. Don't consider ifunc and ifunc resolver symbols | |
| 3373 | duplicates however, because GDB wants to know whether a | |
| 3374 | text symbol is an ifunc resolver. */ | |
| a5259595 | 3375 | for (i = 1, j = 1; i < symcount; ++i) |
| bfa5bd2a PA |
3376 | { |
| 3377 | const asymbol *s0 = syms[i - 1]; | |
| 3378 | const asymbol *s1 = syms[i]; | |
| 3379 | ||
| 3380 | if ((s0->value + s0->section->vma | |
| 3381 | != s1->value + s1->section->vma) | |
| 3382 | || ((s0->flags & BSF_GNU_INDIRECT_FUNCTION) | |
| 3383 | != (s1->flags & BSF_GNU_INDIRECT_FUNCTION))) | |
| 3384 | syms[j++] = syms[i]; | |
| 3385 | } | |
| a5259595 AM |
3386 | symcount = j; |
| 3387 | } | |
| 699733f6 | 3388 | |
| a5259595 AM |
3389 | i = 0; |
| 3390 | /* Note that here and in compare_symbols we can't compare opd and | |
| 3391 | sym->section directly. With separate debug info files, the | |
| 3392 | symbols will be extracted from the debug file while abfd passed | |
| 3393 | to this function is the real binary. */ | |
| 0ccf57bd | 3394 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| a5259595 AM |
3395 | ++i; |
| 3396 | codesecsym = i; | |
| 3397 | ||
| 3398 | for (; i < symcount; ++i) | |
| 3399 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | |
| 3400 | | SEC_THREAD_LOCAL)) | |
| 3401 | != (SEC_CODE | SEC_ALLOC)) | |
| 3402 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3403 | break; | |
| 3404 | codesecsymend = i; | |
| 3405 | ||
| 3406 | for (; i < symcount; ++i) | |
| 3407 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3408 | break; | |
| 3409 | secsymend = i; | |
| 3410 | ||
| 3411 | for (; i < symcount; ++i) | |
| 3412 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3413 | break; | |
| 3414 | opdsymend = i; | |
| 3415 | ||
| 3416 | for (; i < symcount; ++i) | |
| 3417 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3418 | != (SEC_CODE | SEC_ALLOC)) | |
| 3419 | break; | |
| 3420 | symcount = i; | |
| 3421 | } | |
| c9727e01 | 3422 | count = 0; |
| 90e3cdf2 | 3423 | |
| 699733f6 | 3424 | if (relocatable) |
| 90e3cdf2 | 3425 | { |
| 699733f6 AM |
3426 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3427 | arelent *r; | |
| 3428 | size_t size; | |
| 0ccf57bd | 3429 | size_t relcount; |
| 90e3cdf2 | 3430 | |
| 468392fb AM |
3431 | if (opdsymend == secsymend) |
| 3432 | goto done; | |
| 3433 | ||
| 699733f6 | 3434 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3435 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3436 | if (relcount == 0) |
| c9727e01 | 3437 | goto done; |
| 90e3cdf2 | 3438 | |
| 7356fed5 AM |
3439 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3440 | { | |
| 3441 | count = -1; | |
| 3442 | goto done; | |
| 3443 | } | |
| 3444 | ||
| 699733f6 | 3445 | size = 0; |
| 595da8c5 | 3446 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3447 | { |
| 3448 | asymbol *sym; | |
| 90e3cdf2 | 3449 | |
| 595da8c5 | 3450 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3451 | && r->address < syms[i]->value + opd->vma) |
| 3452 | ++r; | |
| 90e3cdf2 | 3453 | |
| 595da8c5 | 3454 | if (r == opd->relocation + relcount) |
| 699733f6 | 3455 | break; |
| 90e3cdf2 | 3456 | |
| 699733f6 AM |
3457 | if (r->address != syms[i]->value + opd->vma) |
| 3458 | continue; | |
| 90e3cdf2 | 3459 | |
| 699733f6 AM |
3460 | if (r->howto->type != R_PPC64_ADDR64) |
| 3461 | continue; | |
| 90e3cdf2 | 3462 | |
| 699733f6 AM |
3463 | sym = *r->sym_ptr_ptr; |
| 3464 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3465 | sym->section->id, sym->value + r->addend)) | |
| 3466 | { | |
| 3467 | ++count; | |
| 3468 | size += sizeof (asymbol); | |
| 3469 | size += strlen (syms[i]->name) + 2; | |
| 3470 | } | |
| 3471 | } | |
| 90e3cdf2 | 3472 | |
| c4b0b099 AM |
3473 | if (size == 0) |
| 3474 | goto done; | |
| 699733f6 AM |
3475 | s = *ret = bfd_malloc (size); |
| 3476 | if (s == NULL) | |
| 3477 | { | |
| 7356fed5 | 3478 | count = -1; |
| c9727e01 | 3479 | goto done; |
| 699733f6 | 3480 | } |
| 90e3cdf2 | 3481 | |
| 699733f6 | 3482 | names = (char *) (s + count); |
| 90e3cdf2 | 3483 | |
| 595da8c5 | 3484 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3485 | { |
| 699733f6 | 3486 | asymbol *sym; |
| 90e3cdf2 | 3487 | |
| 595da8c5 | 3488 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3489 | && r->address < syms[i]->value + opd->vma) |
| 3490 | ++r; | |
| 90e3cdf2 | 3491 | |
| 595da8c5 | 3492 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3493 | break; |
| 3494 | ||
| 3495 | if (r->address != syms[i]->value + opd->vma) | |
| 3496 | continue; | |
| 3497 | ||
| 3498 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3499 | continue; | |
| 90e3cdf2 | 3500 | |
| 699733f6 AM |
3501 | sym = *r->sym_ptr_ptr; |
| 3502 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3503 | sym->section->id, sym->value + r->addend)) | |
| 3504 | { | |
| 3505 | size_t len; | |
| 3506 | ||
| 3507 | *s = *syms[i]; | |
| 6ba2a415 | 3508 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3509 | s->section = sym->section; |
| 3510 | s->value = sym->value + r->addend; | |
| 3511 | s->name = names; | |
| 3512 | *names++ = '.'; | |
| 3513 | len = strlen (syms[i]->name); | |
| 3514 | memcpy (names, syms[i]->name, len + 1); | |
| 3515 | names += len + 1; | |
| 6f610d07 UW |
3516 | /* Have udata.p point back to the original symbol this |
| 3517 | synthetic symbol was derived from. */ | |
| 3518 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3519 | s++; |
| 3520 | } | |
| 3521 | } | |
| 3522 | } | |
| 3523 | else | |
| 90e3cdf2 | 3524 | { |
| 468392fb | 3525 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3526 | bfd_byte *contents = NULL; |
| 699733f6 | 3527 | size_t size; |
| 0ccf57bd | 3528 | size_t plt_count = 0; |
| 468392fb AM |
3529 | bfd_vma glink_vma = 0, resolv_vma = 0; |
| 3530 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3531 | arelent *p; | |
| 90e3cdf2 | 3532 | |
| ee67d69a | 3533 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3534 | { |
| c4b0b099 AM |
3535 | free_contents_and_exit_err: |
| 3536 | count = -1; | |
| ee67d69a | 3537 | free_contents_and_exit: |
| 699733f6 | 3538 | if (contents) |
| ee67d69a | 3539 | free (contents); |
| c9727e01 | 3540 | goto done; |
| 699733f6 | 3541 | } |
| 90e3cdf2 | 3542 | |
| 699733f6 AM |
3543 | size = 0; |
| 3544 | for (i = secsymend; i < opdsymend; ++i) | |
| 3545 | { | |
| 3546 | bfd_vma ent; | |
| 90e3cdf2 | 3547 | |
| 5ef11c02 AM |
3548 | /* Ignore bogus symbols. */ |
| 3549 | if (syms[i]->value > opd->size - 8) | |
| 3550 | continue; | |
| 3551 | ||
| 699733f6 AM |
3552 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3553 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3554 | { | |
| 3555 | ++count; | |
| 3556 | size += sizeof (asymbol); | |
| 3557 | size += strlen (syms[i]->name) + 2; | |
| 3558 | } | |
| 3559 | } | |
| 90e3cdf2 | 3560 | |
| 468392fb | 3561 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3562 | if (dyn_count != 0 |
| 3563 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3564 | { |
| 3565 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3566 | size_t extdynsize; | |
| 3567 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3568 | ||
| 3569 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3570 | goto free_contents_and_exit_err; |
| 468392fb AM |
3571 | |
| 3572 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3573 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3574 | ||
| 3575 | extdyn = dynbuf; | |
| 3576 | extdynend = extdyn + dynamic->size; | |
| 3577 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3578 | { | |
| 3579 | Elf_Internal_Dyn dyn; | |
| 3580 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3581 | ||
| 3582 | if (dyn.d_tag == DT_NULL) | |
| 3583 | break; | |
| 3584 | ||
| 3585 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3586 | { | |
| 9e390558 AM |
3587 | /* The first glink stub starts at DT_PPC64_GLINK plus 32. |
| 3588 | See comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3589 | glink_vma = dyn.d_un.d_val + 8 * 4; | |
| 468392fb AM |
3590 | /* The .glink section usually does not survive the final |
| 3591 | link; search for the section (usually .text) where the | |
| 3592 | glink stubs now reside. */ | |
| 3593 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3594 | &glink_vma); | |
| 3595 | break; | |
| 3596 | } | |
| 3597 | } | |
| 3598 | ||
| 3599 | free (dynbuf); | |
| 3600 | } | |
| 3601 | ||
| 3602 | if (glink != NULL) | |
| 3603 | { | |
| 3604 | /* Determine __glink trampoline by reading the relative branch | |
| 3605 | from the first glink stub. */ | |
| 3606 | bfd_byte buf[4]; | |
| b9e5796b AM |
3607 | unsigned int off = 0; |
| 3608 | ||
| 3609 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3610 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3611 | { |
| 3612 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3613 | insn ^= B_DOT; | |
| 3614 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3615 | { |
| 3616 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3617 | break; | |
| 3618 | } | |
| 3619 | off += 4; | |
| 3620 | if (off > 4) | |
| 3621 | break; | |
| 468392fb AM |
3622 | } |
| 3623 | ||
| 3624 | if (resolv_vma) | |
| 3625 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3626 | |
| 066ee829 AM |
3627 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3628 | if (relplt != NULL) | |
| 3629 | { | |
| 3630 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3631 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3632 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3633 | |
| 066ee829 AM |
3634 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3635 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3636 | |
| 066ee829 AM |
3637 | p = relplt->relocation; |
| 3638 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3639 | { |
| 3640 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3641 | if (p->addend != 0) | |
| 3642 | size += sizeof ("+0x") - 1 + 16; | |
| 3643 | } | |
| 066ee829 | 3644 | } |
| 468392fb AM |
3645 | } |
| 3646 | ||
| c4b0b099 AM |
3647 | if (size == 0) |
| 3648 | goto free_contents_and_exit; | |
| 699733f6 AM |
3649 | s = *ret = bfd_malloc (size); |
| 3650 | if (s == NULL) | |
| c4b0b099 | 3651 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3652 | |
| 468392fb | 3653 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3654 | |
| 699733f6 | 3655 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3656 | { |
| 699733f6 | 3657 | bfd_vma ent; |
| 90e3cdf2 | 3658 | |
| 5ef11c02 AM |
3659 | if (syms[i]->value > opd->size - 8) |
| 3660 | continue; | |
| 3661 | ||
| 699733f6 AM |
3662 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3663 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3664 | { |
| 0ccf57bd | 3665 | size_t lo, hi; |
| 699733f6 | 3666 | size_t len; |
| c9727e01 | 3667 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3668 | |
| 699733f6 AM |
3669 | *s = *syms[i]; |
| 3670 | lo = codesecsym; | |
| 3671 | hi = codesecsymend; | |
| 3672 | while (lo < hi) | |
| 3673 | { | |
| 0ccf57bd | 3674 | size_t mid = (lo + hi) >> 1; |
| 699733f6 AM |
3675 | if (syms[mid]->section->vma < ent) |
| 3676 | lo = mid + 1; | |
| 3677 | else if (syms[mid]->section->vma > ent) | |
| 3678 | hi = mid; | |
| 3679 | else | |
| c9727e01 AM |
3680 | { |
| 3681 | sec = syms[mid]->section; | |
| 3682 | break; | |
| 3683 | } | |
| 699733f6 AM |
3684 | } |
| 3685 | ||
| c9727e01 | 3686 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3687 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3688 | |
| 3689 | for (; sec != NULL; sec = sec->next) | |
| 3690 | { | |
| 3691 | if (sec->vma > ent) | |
| 3692 | break; | |
| 63524580 JK |
3693 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3694 | info file. */ | |
| 3695 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3696 | break; |
| 3697 | if ((sec->flags & SEC_CODE) != 0) | |
| 3698 | s->section = sec; | |
| 3699 | } | |
| 6ba2a415 | 3700 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3701 | s->value = ent - s->section->vma; |
| 3702 | s->name = names; | |
| 3703 | *names++ = '.'; | |
| 3704 | len = strlen (syms[i]->name); | |
| 3705 | memcpy (names, syms[i]->name, len + 1); | |
| 3706 | names += len + 1; | |
| 6f610d07 UW |
3707 | /* Have udata.p point back to the original symbol this |
| 3708 | synthetic symbol was derived from. */ | |
| 3709 | s->udata.p = syms[i]; | |
| 699733f6 | 3710 | s++; |
| 90e3cdf2 | 3711 | } |
| 90e3cdf2 | 3712 | } |
| 699733f6 | 3713 | free (contents); |
| 468392fb AM |
3714 | |
| 3715 | if (glink != NULL && relplt != NULL) | |
| 3716 | { | |
| 3717 | if (resolv_vma) | |
| 3718 | { | |
| 3719 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3720 | memset (s, 0, sizeof *s); |
| 468392fb | 3721 | s->the_bfd = abfd; |
| 6ba2a415 | 3722 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3723 | s->section = glink; |
| 3724 | s->value = resolv_vma - glink->vma; | |
| 3725 | s->name = names; | |
| 3726 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3727 | names += sizeof ("__glink_PLTresolve"); | |
| 3728 | s++; | |
| 3729 | count++; | |
| 3730 | } | |
| 3731 | ||
| 3732 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3733 | stub rather than on the glink branch table entry. The | |
| 3734 | objdump disassembler would then use a sensible symbol | |
| 3735 | name on plt calls. The difficulty in doing so is | |
| 3736 | a) finding the stubs, and, | |
| 3737 | b) matching stubs against plt entries, and, | |
| 3738 | c) there can be multiple stubs for a given plt entry. | |
| 3739 | ||
| 3740 | Solving (a) could be done by code scanning, but older | |
| 3741 | ppc64 binaries used different stubs to current code. | |
| 3742 | (b) is the tricky one since you need to known the toc | |
| 3743 | pointer for at least one function that uses a pic stub to | |
| 3744 | be able to calculate the plt address referenced. | |
| 3745 | (c) means gdb would need to set multiple breakpoints (or | |
| 3746 | find the glink branch itself) when setting breakpoints | |
| 3747 | for pending shared library loads. */ | |
| 3748 | p = relplt->relocation; | |
| 3749 | for (i = 0; i < plt_count; i++, p++) | |
| 3750 | { | |
| 3751 | size_t len; | |
| 3752 | ||
| 3753 | *s = **p->sym_ptr_ptr; | |
| 3754 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3755 | we are defining a symbol, ensure one of them is set. */ | |
| 3756 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3757 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3758 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3759 | s->section = glink; |
| 3760 | s->value = glink_vma - glink->vma; | |
| 3761 | s->name = names; | |
| 3762 | s->udata.p = NULL; | |
| 3763 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3764 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3765 | names += len; | |
| e054468f AM |
3766 | if (p->addend != 0) |
| 3767 | { | |
| 3768 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3769 | names += sizeof ("+0x") - 1; | |
| 3770 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3771 | names += strlen (names); | |
| 3772 | } | |
| 468392fb AM |
3773 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3774 | names += sizeof ("@plt"); | |
| 3775 | s++; | |
| b9e5796b AM |
3776 | if (abi < 2) |
| 3777 | { | |
| 3778 | glink_vma += 8; | |
| 3779 | if (i >= 0x8000) | |
| 3780 | glink_vma += 4; | |
| 3781 | } | |
| 3782 | else | |
| 468392fb AM |
3783 | glink_vma += 4; |
| 3784 | } | |
| 3785 | count += plt_count; | |
| 3786 | } | |
| 90e3cdf2 JJ |
3787 | } |
| 3788 | ||
| c9727e01 | 3789 | done: |
| a7535cf3 | 3790 | free (syms); |
| 90e3cdf2 JJ |
3791 | return count; |
| 3792 | } | |
| 5bd4f169 | 3793 | \f |
| 65f38f15 AM |
3794 | /* The following functions are specific to the ELF linker, while |
| 3795 | functions above are used generally. Those named ppc64_elf_* are | |
| 3796 | called by the main ELF linker code. They appear in this file more | |
| 3797 | or less in the order in which they are called. eg. | |
| 3798 | ppc64_elf_check_relocs is called early in the link process, | |
| 3799 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3800 | called. |
| 3801 | ||
| 3802 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3803 | functions have both a function code symbol and a function descriptor | |
| 3804 | symbol. A call to foo in a relocatable object file looks like: | |
| 3805 | ||
| 3806 | . .text | |
| 3807 | . x: | |
| 3808 | . bl .foo | |
| 3809 | . nop | |
| 3810 | ||
| 3811 | The function definition in another object file might be: | |
| 3812 | ||
| 3813 | . .section .opd | |
| 3814 | . foo: .quad .foo | |
| 3815 | . .quad .TOC.@tocbase | |
| 3816 | . .quad 0 | |
| 3817 | . | |
| 3818 | . .text | |
| 3819 | . .foo: blr | |
| 3820 | ||
| 3821 | When the linker resolves the call during a static link, the branch | |
| 3822 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3823 | If the function definition is in a shared library, things are a little | |
| 3824 | different: The call goes via a plt call stub, the opd information gets | |
| 3825 | copied to the plt, and the linker patches the nop. | |
| 3826 | ||
| 3827 | . x: | |
| 3828 | . bl .foo_stub | |
| 3829 | . ld 2,40(1) | |
| 3830 | . | |
| 3831 | . | |
| 3832 | . .foo_stub: | |
| 71a39c98 AM |
3833 | . std 2,40(1) # in practice, the call stub |
| 3834 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3835 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3836 | . ld 12,0(11) | |
| 3837 | . ld 2,8(11) | |
| 3838 | . mtctr 12 | |
| 3839 | . ld 11,16(11) | |
| e86ce104 AM |
3840 | . bctr |
| 3841 | . | |
| 3842 | . .section .plt | |
| 3843 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3844 | ||
| 3845 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3846 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3847 | copying. | |
| 3848 | ||
| 3849 | What are the difficulties here? Well, firstly, the relocations | |
| 3850 | examined by the linker in check_relocs are against the function code | |
| 3851 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3852 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3853 | to carefully copy dynamic link information from one symbol to the other. | |
| 3854 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3855 | symbol as is normal for most other backends. We need foo dynamic | |
| 3856 | instead, at least for an application final link. However, when | |
| 3857 | creating a shared library containing foo, we need to have both symbols | |
| 3858 | dynamic so that references to .foo are satisfied during the early | |
| 3859 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3860 | definition from some other object, eg. a static library. |
| 3861 | ||
| 3862 | Update: As of August 2004, we support a new convention. Function | |
| 3863 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3864 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3865 | |
| 7c8bbca5 AM |
3866 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3867 | function selects those that must be copied when linking a shared | |
| 3868 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3869 | |
| 1d483afe AM |
3870 | static int |
| 3871 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3872 | enum elf_ppc64_reloc_type r_type) | |
| 3873 | { | |
| 3874 | switch (r_type) | |
| 3875 | { | |
| 3876 | default: | |
| 7c8bbca5 AM |
3877 | /* Only relative relocs can be resolved when the object load |
| 3878 | address isn't fixed. DTPREL64 is excluded because the | |
| 3879 | dynamic linker needs to differentiate global dynamic from | |
| 3880 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3881 | return 1; |
| 3882 | ||
| 3883 | case R_PPC64_REL32: | |
| 3884 | case R_PPC64_REL64: | |
| 3885 | case R_PPC64_REL30: | |
| 3886 | return 0; | |
| 3887 | ||
| 3888 | case R_PPC64_TPREL16: | |
| 3889 | case R_PPC64_TPREL16_LO: | |
| 3890 | case R_PPC64_TPREL16_HI: | |
| 3891 | case R_PPC64_TPREL16_HA: | |
| 3892 | case R_PPC64_TPREL16_DS: | |
| 3893 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3894 | case R_PPC64_TPREL16_HIGH: |
| 3895 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3896 | case R_PPC64_TPREL16_HIGHER: |
| 3897 | case R_PPC64_TPREL16_HIGHERA: | |
| 3898 | case R_PPC64_TPREL16_HIGHEST: | |
| 3899 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3900 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3901 | /* These relocations are relative but in a shared library the |
| 3902 | linker doesn't know the thread pointer base. */ | |
| 3903 | return bfd_link_dll (info); | |
| 1d483afe AM |
3904 | } |
| 3905 | } | |
| 65f38f15 | 3906 | |
| f4656909 AM |
3907 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3908 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3909 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3910 | shared lib. With code that gcc generates, it's vital that this be |
| 3911 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3912 | the address of a function descriptor, which resides in the .opd | |
| 3913 | section. gcc uses the descriptor directly rather than going via the | |
| 3914 | GOT as some other ABI's do, which means that initialized function | |
| 3915 | pointers must reference the descriptor. Thus, a function pointer | |
| 3916 | initialized to the address of a function in a shared library will | |
| 3917 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3918 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3919 | presents a problem as a plt entry for that function is also |
| 3920 | initialized from the function descriptor symbol and the copy reloc | |
| 3921 | may not be initialized first. */ | |
| a23b6845 | 3922 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3923 | |
| 721956f4 | 3924 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3925 | string. */ |
| 3926 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3927 | |
| 3928 | /* Linker stubs. | |
| 3929 | ppc_stub_long_branch: | |
| 3930 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3931 | destination, but a 24 bit branch in a stub section will reach. | |
| 3932 | . b dest | |
| 3933 | ||
| 3934 | ppc_stub_plt_branch: | |
| 3935 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3936 | reach its destination. | |
| 71a39c98 AM |
3937 | . addis %r11,%r2,xxx@toc@ha |
| 3938 | . ld %r12,xxx@toc@l(%r11) | |
| 3939 | . mtctr %r12 | |
| 721956f4 AM |
3940 | . bctr |
| 3941 | ||
| 3942 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3943 | Used to call a function in a shared library. If it so happens that |
| 3944 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3945 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3946 | . std %r2,40(%r1) |
| 71a39c98 AM |
3947 | . addis %r11,%r2,xxx@toc@ha |
| 3948 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3949 | . mtctr %r12 | |
| 3950 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3951 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3952 | . bctr |
| ad8e1ba5 AM |
3953 | |
| 3954 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3955 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3956 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3957 | . std %r2,40(%r1) | |
| 3958 | . addis %r2,%r2,off@ha | |
| 3959 | . addi %r2,%r2,off@l | |
| 3960 | . b dest | |
| 3961 | ||
| 3962 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3963 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3964 | . addis %r11,%r2,xxx@toc@ha |
| 3965 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3966 | . addis %r2,%r2,off@ha |
| 3967 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3968 | . mtctr %r12 |
| ad8e1ba5 | 3969 | . bctr |
| ac2df442 AM |
3970 | |
| 3971 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3972 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3973 | */ |
| 3974 | ||
| 3975 | enum ppc_stub_type { | |
| 3976 | ppc_stub_none, | |
| 3977 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3978 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3979 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3980 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3981 | ppc_stub_plt_call, |
| 7341d5e2 | 3982 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3983 | ppc_stub_global_entry, |
| 3984 | ppc_stub_save_res | |
| 721956f4 AM |
3985 | }; |
| 3986 | ||
| 6f20ed8a AM |
3987 | /* Information on stub grouping. */ |
| 3988 | struct map_stub | |
| 3989 | { | |
| 3990 | /* The stub section. */ | |
| 3991 | asection *stub_sec; | |
| 3992 | /* This is the section to which stubs in the group will be attached. */ | |
| 3993 | asection *link_sec; | |
| a4b6fadd AM |
3994 | /* Next group. */ |
| 3995 | struct map_stub *next; | |
| 3996 | /* Whether to emit a copy of register save/restore functions in this | |
| 3997 | group. */ | |
| 3998 | int needs_save_res; | |
| d4aaa2a0 AM |
3999 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 4000 | or -1u if no such stub with bctrl exists. */ | |
| 4001 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
4002 | }; |
| 4003 | ||
| 721956f4 AM |
4004 | struct ppc_stub_hash_entry { |
| 4005 | ||
| 4006 | /* Base hash table entry structure. */ | |
| 4007 | struct bfd_hash_entry root; | |
| 4008 | ||
| ad8e1ba5 AM |
4009 | enum ppc_stub_type stub_type; |
| 4010 | ||
| 6f20ed8a AM |
4011 | /* Group information. */ |
| 4012 | struct map_stub *group; | |
| 721956f4 AM |
4013 | |
| 4014 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 4015 | bfd_vma stub_offset; | |
| 4016 | ||
| 4017 | /* Given the symbol's value and its section we can determine its final | |
| 4018 | value when building the stubs (so the stub knows where to jump. */ | |
| 4019 | bfd_vma target_value; | |
| 4020 | asection *target_section; | |
| 4021 | ||
| 721956f4 AM |
4022 | /* The symbol table entry, if any, that this was derived from. */ |
| 4023 | struct ppc_link_hash_entry *h; | |
| e054468f | 4024 | struct plt_entry *plt_ent; |
| 721956f4 | 4025 | |
| 2d7ad24e AM |
4026 | /* Symbol type. */ |
| 4027 | unsigned char symtype; | |
| 4028 | ||
| 6911b7dc AM |
4029 | /* Symbol st_other. */ |
| 4030 | unsigned char other; | |
| 721956f4 AM |
4031 | }; |
| 4032 | ||
| 4033 | struct ppc_branch_hash_entry { | |
| 4034 | ||
| 4035 | /* Base hash table entry structure. */ | |
| 4036 | struct bfd_hash_entry root; | |
| 4037 | ||
| c456f082 | 4038 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
4039 | unsigned int offset; |
| 4040 | ||
| 4041 | /* Generation marker. */ | |
| 4042 | unsigned int iter; | |
| 4043 | }; | |
| 65f38f15 | 4044 | |
| 19e08130 AM |
4045 | /* Used to track dynamic relocations for local symbols. */ |
| 4046 | struct ppc_dyn_relocs | |
| 4047 | { | |
| 4048 | struct ppc_dyn_relocs *next; | |
| 4049 | ||
| 4050 | /* The input section of the reloc. */ | |
| 4051 | asection *sec; | |
| 4052 | ||
| 4053 | /* Total number of relocs copied for the input section. */ | |
| 4054 | unsigned int count : 31; | |
| 4055 | ||
| 4056 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 4057 | unsigned int ifunc : 1; | |
| 4058 | }; | |
| 4059 | ||
| 65f38f15 AM |
4060 | struct ppc_link_hash_entry |
| 4061 | { | |
| 4062 | struct elf_link_hash_entry elf; | |
| 4063 | ||
| b3fac117 AM |
4064 | union { |
| 4065 | /* A pointer to the most recently used stub hash entry against this | |
| 4066 | symbol. */ | |
| 4067 | struct ppc_stub_hash_entry *stub_cache; | |
| 4068 | ||
| 4069 | /* A pointer to the next symbol starting with a '.' */ | |
| 4070 | struct ppc_link_hash_entry *next_dot_sym; | |
| 4071 | } u; | |
| 721956f4 | 4072 | |
| 65f38f15 | 4073 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4074 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4075 | |
| 721956f4 | 4076 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4077 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4078 | |
| e86ce104 AM |
4079 | /* Flag function code and descriptor symbols. */ |
| 4080 | unsigned int is_func:1; | |
| 4081 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4082 | unsigned int fake:1; |
| 411e1bfb | 4083 | |
| c5614fa4 AM |
4084 | /* Whether global opd/toc sym has been adjusted or not. |
| 4085 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4086 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4087 | unsigned int adjust_done:1; |
| 4088 | ||
| a4b6fadd AM |
4089 | /* Set if this is an out-of-line register save/restore function, |
| 4090 | with non-standard calling convention. */ | |
| 4091 | unsigned int save_res:1; | |
| 4092 | ||
| 8b5f1ed8 AM |
4093 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4094 | even when the duplicate symbol does not provide a definition. */ | |
| 4095 | unsigned int non_zero_localentry:1; | |
| 4096 | ||
| 411e1bfb | 4097 | /* Contexts in which symbol is used in the GOT (or TOC). |
| 37da22e5 AM |
4098 | Bits are or'd into the mask as the corresponding relocs are |
| 4099 | encountered during check_relocs, with TLS_TLS being set when any | |
| 4100 | of the other TLS bits are set. tls_optimize clears bits when | |
| 4101 | optimizing to indicate the corresponding GOT entry type is not | |
| 4102 | needed. If set, TLS_TLS is never cleared. tls_optimize may also | |
| 4103 | set TLS_TPRELGD when a GD reloc turns into a TPREL one. We use a | |
| 4104 | separate flag rather than setting TPREL just for convenience in | |
| 4105 | distinguishing the two cases. | |
| 4106 | These flags are also kept for local symbols. */ | |
| 4107 | #define TLS_TLS 1 /* Any TLS reloc. */ | |
| 4108 | #define TLS_GD 2 /* GD reloc. */ | |
| 4109 | #define TLS_LD 4 /* LD reloc. */ | |
| 4110 | #define TLS_TPREL 8 /* TPREL reloc, => IE. */ | |
| 4111 | #define TLS_DTPREL 16 /* DTPREL reloc, => LD. */ | |
| 4112 | #define TLS_MARK 32 /* __tls_get_addr call marked. */ | |
| e7b938ca | 4113 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ |
| 37da22e5 | 4114 | #define TLS_EXPLICIT 128 /* Marks TOC section TLS relocs. */ |
| f961d9dd | 4115 | unsigned char tls_mask; |
| 37da22e5 AM |
4116 | |
| 4117 | /* The above field is also used to mark function symbols. In which | |
| 4118 | case TLS_TLS will be 0. */ | |
| 4119 | #define PLT_IFUNC 2 /* STT_GNU_IFUNC. */ | |
| 2d7ad24e | 4120 | #define PLT_KEEP 4 /* inline plt call requires plt entry. */ |
| 37da22e5 | 4121 | #define NON_GOT 256 /* local symbol plt, not stored. */ |
| 65f38f15 AM |
4122 | }; |
| 4123 | ||
| 4124 | /* ppc64 ELF linker hash table. */ | |
| 4125 | ||
| 4126 | struct ppc_link_hash_table | |
| 4127 | { | |
| 4128 | struct elf_link_hash_table elf; | |
| 4129 | ||
| 721956f4 AM |
4130 | /* The stub hash table. */ |
| 4131 | struct bfd_hash_table stub_hash_table; | |
| 4132 | ||
| 4133 | /* Another hash table for plt_branch stubs. */ | |
| 4134 | struct bfd_hash_table branch_hash_table; | |
| 4135 | ||
| 3b421ab3 AM |
4136 | /* Hash table for function prologue tocsave. */ |
| 4137 | htab_t tocsave_htab; | |
| 4138 | ||
| e7d1c40c AM |
4139 | /* Various options and other info passed from the linker. */ |
| 4140 | struct ppc64_elf_params *params; | |
| 721956f4 | 4141 | |
| 6f20ed8a AM |
4142 | /* The size of sec_info below. */ |
| 4143 | unsigned int sec_info_arr_size; | |
| 4144 | ||
| 4145 | /* Per-section array of extra section info. Done this way rather | |
| 4146 | than as part of ppc64_elf_section_data so we have the info for | |
| 4147 | non-ppc64 sections. */ | |
| 4148 | struct | |
| 4149 | { | |
| 4150 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4151 | bfd_vma toc_off; |
| 6f20ed8a AM |
4152 | |
| 4153 | union | |
| 4154 | { | |
| 4155 | /* The section group that this section belongs to. */ | |
| 4156 | struct map_stub *group; | |
| 4157 | /* A temp section list pointer. */ | |
| 4158 | asection *list; | |
| 4159 | } u; | |
| 4160 | } *sec_info; | |
| 721956f4 | 4161 | |
| a4b6fadd AM |
4162 | /* Linked list of groups. */ |
| 4163 | struct map_stub *group; | |
| 4164 | ||
| ad8e1ba5 AM |
4165 | /* Temp used when calculating TOC pointers. */ |
| 4166 | bfd_vma toc_curr; | |
| bf102f86 AM |
4167 | bfd *toc_bfd; |
| 4168 | asection *toc_first_sec; | |
| ad8e1ba5 | 4169 | |
| b3fac117 AM |
4170 | /* Used when adding symbols. */ |
| 4171 | struct ppc_link_hash_entry *dot_syms; | |
| 4172 | ||
| 33e44f2e | 4173 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4174 | asection *glink; |
| 9e390558 | 4175 | asection *global_entry; |
| 82bd7b59 | 4176 | asection *sfpr; |
| 2d7ad24e AM |
4177 | asection *pltlocal; |
| 4178 | asection *relpltlocal; | |
| 4ce794b7 AM |
4179 | asection *brlt; |
| 4180 | asection *relbrlt; | |
| 58d180e8 | 4181 | asection *glink_eh_frame; |
| ec338859 | 4182 | |
| 8387904d AM |
4183 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4184 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4185 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4186 | |
| 927be08e AM |
4187 | /* The size of reliplt used by got entry relocs. */ |
| 4188 | bfd_size_type got_reli_size; | |
| 4189 | ||
| 9b5ecbd0 | 4190 | /* Statistics. */ |
| 7341d5e2 | 4191 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4192 | |
| ee75fd95 AM |
4193 | /* Number of stubs against global syms. */ |
| 4194 | unsigned long stub_globals; | |
| 4195 | ||
| ee67d69a AM |
4196 | /* Set if we're linking code with function descriptors. */ |
| 4197 | unsigned int opd_abi:1; | |
| 4198 | ||
| 4c52953f | 4199 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4200 | unsigned int do_multi_toc:1; |
| 4c52953f | 4201 | unsigned int multi_toc_needed:1; |
| 927be08e | 4202 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4203 | unsigned int do_toc_opt:1; |
| 4c52953f | 4204 | |
| 9a23f96e AM |
4205 | /* Set if tls optimization is enabled. */ |
| 4206 | unsigned int do_tls_opt:1; | |
| 4207 | ||
| 3e04d765 AM |
4208 | /* Set if inline plt calls should be converted to direct calls. */ |
| 4209 | unsigned int can_convert_all_inline_plt:1; | |
| 4210 | ||
| 5d1634d7 | 4211 | /* Set on error. */ |
| 99877b66 | 4212 | unsigned int stub_error:1; |
| 721956f4 | 4213 | |
| 8c5b4e52 AM |
4214 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4215 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4216 | |
| 82e66161 AM |
4217 | /* Whether there exist local gnu indirect function resolvers, |
| 4218 | referenced by dynamic relocations. */ | |
| 4219 | unsigned int local_ifunc_resolver:1; | |
| 4220 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4221 | ||
| f378ab09 AM |
4222 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4223 | unsigned int has_plt_localentry0:1; | |
| 4224 | ||
| 721956f4 AM |
4225 | /* Incremented every time we size stubs. */ |
| 4226 | unsigned int stub_iteration; | |
| 5d1634d7 | 4227 | |
| 87d72d41 AM |
4228 | /* Small local sym cache. */ |
| 4229 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4230 | }; |
| 4231 | ||
| 4c52953f AM |
4232 | /* Rename some of the generic section flags to better document how they |
| 4233 | are used here. */ | |
| b0dddeec AM |
4234 | |
| 4235 | /* Nonzero if this section has TLS related relocations. */ | |
| 4236 | #define has_tls_reloc sec_flg0 | |
| 4237 | ||
| 23cedd1d | 4238 | /* Nonzero if this section has an old-style call to __tls_get_addr. */ |
| b0dddeec AM |
4239 | #define has_tls_get_addr_call sec_flg1 |
| 4240 | ||
| 4241 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4242 | #define has_toc_reloc sec_flg2 | |
| 4243 | ||
| 4244 | /* Nonzero if this section has a call to another section that uses | |
| 4245 | the toc or got. */ | |
| d77c8a4b | 4246 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4247 | |
| 4248 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4249 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4250 | #define call_check_done sec_flg5 |
| 4c52953f | 4251 | |
| 65f38f15 AM |
4252 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4253 | ||
| 4254 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4255 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4256 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4257 | |
| 721956f4 AM |
4258 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4259 | ((struct ppc_stub_hash_entry *) \ | |
| 4260 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4261 | ||
| 4262 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4263 | ((struct ppc_branch_hash_entry *) \ | |
| 4264 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4265 | ||
| 4266 | /* Create an entry in the stub hash table. */ | |
| 4267 | ||
| 4268 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4269 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4270 | struct bfd_hash_table *table, | |
| 4271 | const char *string) | |
| 721956f4 AM |
4272 | { |
| 4273 | /* Allocate the structure if it has not already been allocated by a | |
| 4274 | subclass. */ | |
| 4275 | if (entry == NULL) | |
| 4276 | { | |
| 4277 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4278 | if (entry == NULL) | |
| 4279 | return entry; | |
| 4280 | } | |
| 4281 | ||
| 4282 | /* Call the allocation method of the superclass. */ | |
| 4283 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4284 | if (entry != NULL) | |
| 4285 | { | |
| 4286 | struct ppc_stub_hash_entry *eh; | |
| 4287 | ||
| 4288 | /* Initialize the local fields. */ | |
| 4289 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4290 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4291 | eh->group = NULL; |
| 721956f4 AM |
4292 | eh->stub_offset = 0; |
| 4293 | eh->target_value = 0; | |
| 4294 | eh->target_section = NULL; | |
| 721956f4 | 4295 | eh->h = NULL; |
| 6911b7dc | 4296 | eh->plt_ent = NULL; |
| 6911b7dc | 4297 | eh->other = 0; |
| 721956f4 AM |
4298 | } |
| 4299 | ||
| 4300 | return entry; | |
| 4301 | } | |
| 4302 | ||
| 4303 | /* Create an entry in the branch hash table. */ | |
| 4304 | ||
| 4305 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4306 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4307 | struct bfd_hash_table *table, | |
| 4308 | const char *string) | |
| 721956f4 AM |
4309 | { |
| 4310 | /* Allocate the structure if it has not already been allocated by a | |
| 4311 | subclass. */ | |
| 4312 | if (entry == NULL) | |
| 4313 | { | |
| 4314 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4315 | if (entry == NULL) | |
| 4316 | return entry; | |
| 4317 | } | |
| 4318 | ||
| 4319 | /* Call the allocation method of the superclass. */ | |
| 4320 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4321 | if (entry != NULL) | |
| 4322 | { | |
| 4323 | struct ppc_branch_hash_entry *eh; | |
| 4324 | ||
| 4325 | /* Initialize the local fields. */ | |
| 4326 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4327 | eh->offset = 0; | |
| 4328 | eh->iter = 0; | |
| 4329 | } | |
| 4330 | ||
| 4331 | return entry; | |
| 4332 | } | |
| 4333 | ||
| 65f38f15 AM |
4334 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4335 | ||
| 4336 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4337 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4338 | struct bfd_hash_table *table, | |
| 4339 | const char *string) | |
| 65f38f15 AM |
4340 | { |
| 4341 | /* Allocate the structure if it has not already been allocated by a | |
| 4342 | subclass. */ | |
| 4343 | if (entry == NULL) | |
| 4344 | { | |
| 4345 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4346 | if (entry == NULL) | |
| 4347 | return entry; | |
| 4348 | } | |
| 4349 | ||
| 4350 | /* Call the allocation method of the superclass. */ | |
| 4351 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4352 | if (entry != NULL) | |
| 4353 | { | |
| 4354 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4355 | ||
| b3fac117 | 4356 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4357 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4358 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4359 | ||
| 4360 | /* When making function calls, old ABI code references function entry | |
| 4361 | points (dot symbols), while new ABI code references the function | |
| 4362 | descriptor symbol. We need to make any combination of reference and | |
| 4363 | definition work together, without breaking archive linking. | |
| 4364 | ||
| 4365 | For a defined function "foo" and an undefined call to "bar": | |
| 4366 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4367 | "bar" too). | |
| 4368 | A new object defines "foo" and references "bar". | |
| 4369 | ||
| 4370 | A new object thus has no problem with its undefined symbols being | |
| 4371 | satisfied by definitions in an old object. On the other hand, the | |
| 4372 | old object won't have ".bar" satisfied by a new object. | |
| 4373 | ||
| 4374 | Keep a list of newly added dot-symbols. */ | |
| 4375 | ||
| 4376 | if (string[0] == '.') | |
| 4377 | { | |
| 4378 | struct ppc_link_hash_table *htab; | |
| 4379 | ||
| 4380 | htab = (struct ppc_link_hash_table *) table; | |
| 4381 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4382 | htab->dot_syms = eh; | |
| 4383 | } | |
| 65f38f15 AM |
4384 | } |
| 4385 | ||
| 4386 | return entry; | |
| 4387 | } | |
| 4388 | ||
| 3b421ab3 AM |
4389 | struct tocsave_entry { |
| 4390 | asection *sec; | |
| 4391 | bfd_vma offset; | |
| 4392 | }; | |
| 4393 | ||
| 4394 | static hashval_t | |
| 4395 | tocsave_htab_hash (const void *p) | |
| 4396 | { | |
| 4397 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4398 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4399 | } |
| 4400 | ||
| 4401 | static int | |
| 4402 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4403 | { | |
| 4404 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4405 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4406 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4407 | } | |
| 4408 | ||
| 68faa637 AM |
4409 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4410 | ||
| 4411 | static void | |
| d495ab0d | 4412 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4413 | { |
| d495ab0d | 4414 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4415 | |
| d495ab0d | 4416 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4417 | if (htab->tocsave_htab) |
| 4418 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4419 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4420 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4421 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4422 | } |
| 4423 | ||
| 65f38f15 AM |
4424 | /* Create a ppc64 ELF linker hash table. */ |
| 4425 | ||
| 4426 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4427 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4428 | { |
| 4429 | struct ppc_link_hash_table *htab; | |
| 4430 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4431 | ||
| 4ce794b7 | 4432 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4433 | if (htab == NULL) |
| 4434 | return NULL; | |
| 4435 | ||
| 66eb6687 | 4436 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4437 | sizeof (struct ppc_link_hash_entry), |
| 4438 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4439 | { |
| e2d34d7d | 4440 | free (htab); |
| 65f38f15 AM |
4441 | return NULL; |
| 4442 | } | |
| 4443 | ||
| 721956f4 | 4444 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4445 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4446 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4447 | { |
| d495ab0d | 4448 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4449 | return NULL; |
| 4450 | } | |
| 721956f4 AM |
4451 | |
| 4452 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4453 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4454 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4455 | { |
| 4456 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4457 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4458 | return NULL; |
| 4459 | } | |
| 721956f4 | 4460 | |
| 3b421ab3 AM |
4461 | htab->tocsave_htab = htab_try_create (1024, |
| 4462 | tocsave_htab_hash, | |
| 4463 | tocsave_htab_eq, | |
| 4464 | NULL); | |
| 4465 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4466 | { |
| d495ab0d | 4467 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4468 | return NULL; |
| 4469 | } | |
| d495ab0d | 4470 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4471 | |
| 3254fd24 AM |
4472 | /* Initializing two fields of the union is just cosmetic. We really |
| 4473 | only care about glist, but when compiled on a 32-bit host the | |
| 4474 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4475 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4476 | htab->elf.init_got_refcount.refcount = 0; |
| 4477 | htab->elf.init_got_refcount.glist = NULL; | |
| 4478 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4479 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4480 | htab->elf.init_got_offset.offset = 0; | |
| 4481 | htab->elf.init_got_offset.glist = NULL; | |
| 4482 | htab->elf.init_plt_offset.offset = 0; | |
| 4483 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4484 | |
| 65f38f15 AM |
4485 | return &htab->elf.root; |
| 4486 | } | |
| 4487 | ||
| bfeb4a28 AM |
4488 | /* Create sections for linker generated code. */ |
| 4489 | ||
| 4490 | static bfd_boolean | |
| 4491 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4492 | { | |
| 4493 | struct ppc_link_hash_table *htab; | |
| 4494 | flagword flags; | |
| 4495 | ||
| 4496 | htab = ppc_hash_table (info); | |
| 4497 | ||
| bfeb4a28 AM |
4498 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4499 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4500 | if (htab->params->save_restore_funcs) |
| 4501 | { | |
| 4502 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4503 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4504 | flags); | |
| 4505 | if (htab->sfpr == NULL | |
| 4506 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4507 | return FALSE; | |
| 4508 | } | |
| 4509 | ||
| 4510 | if (bfd_link_relocatable (info)) | |
| 4511 | return TRUE; | |
| bfeb4a28 AM |
4512 | |
| 4513 | /* Create .glink for lazy dynamic linking support. */ | |
| 4514 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4515 | flags); | |
| 4516 | if (htab->glink == NULL | |
| 4517 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4518 | return FALSE; | |
| 4519 | ||
| 9e390558 AM |
4520 | /* The part of .glink used by global entry stubs, separate so that |
| 4521 | it can be aligned appropriately without affecting htab->glink. */ | |
| 4522 | htab->global_entry = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4523 | flags); | |
| 4524 | if (htab->global_entry == NULL | |
| 4525 | || ! bfd_set_section_alignment (dynobj, htab->global_entry, 2)) | |
| 4526 | return FALSE; | |
| 4527 | ||
| bfeb4a28 AM |
4528 | if (!info->no_ld_generated_unwind_info) |
| 4529 | { | |
| 4530 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4531 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4532 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4533 | ".eh_frame", | |
| 4534 | flags); | |
| 4535 | if (htab->glink_eh_frame == NULL | |
| 4536 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4537 | return FALSE; | |
| 4538 | } | |
| 4539 | ||
| 4540 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4541 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4542 | if (htab->elf.iplt == NULL | |
| 4543 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4544 | return FALSE; |
| 4545 | ||
| 4546 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4547 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4548 | htab->elf.irelplt |
| 4549 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4550 | if (htab->elf.irelplt == NULL | |
| 4551 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4552 | return FALSE; |
| 4553 | ||
| 4554 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4555 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4556 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4557 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4558 | flags); | |
| 4559 | if (htab->brlt == NULL | |
| 4560 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4561 | return FALSE; | |
| 4562 | ||
| 2d7ad24e AM |
4563 | /* Local plt entries, put in .branch_lt but a separate section for |
| 4564 | convenience. */ | |
| 4565 | htab->pltlocal = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4566 | flags); | |
| 4567 | if (htab->pltlocal == NULL | |
| 4568 | || ! bfd_set_section_alignment (dynobj, htab->pltlocal, 3)) | |
| 4569 | return FALSE; | |
| 4570 | ||
| 0e1862bb | 4571 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4572 | return TRUE; |
| 4573 | ||
| 4574 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4575 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 2d7ad24e AM |
4576 | htab->relbrlt |
| 4577 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.branch_lt", flags); | |
| bfeb4a28 AM |
4578 | if (htab->relbrlt == NULL |
| 4579 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4580 | return FALSE; | |
| 4581 | ||
| 2d7ad24e AM |
4582 | htab->relpltlocal |
| 4583 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.branch_lt", flags); | |
| 4584 | if (htab->relpltlocal == NULL | |
| 4585 | || ! bfd_set_section_alignment (dynobj, htab->relpltlocal, 3)) | |
| 4586 | return FALSE; | |
| 4587 | ||
| bfeb4a28 AM |
4588 | return TRUE; |
| 4589 | } | |
| 4590 | ||
| e717da7e AM |
4591 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4592 | ||
| bfeb4a28 | 4593 | bfd_boolean |
| e7d1c40c AM |
4594 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4595 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4596 | { |
| 4597 | struct ppc_link_hash_table *htab; | |
| 4598 | ||
| e7d1c40c | 4599 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4600 | |
| 4601 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4602 | linker created stub bfd. This ensures that the GOT header is at | |
| 4603 | the start of the output TOC section. */ | |
| 4604 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4605 | htab->elf.dynobj = params->stub_bfd; |
| 4606 | htab->params = params; | |
| bfeb4a28 | 4607 | |
| bfeb4a28 | 4608 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4609 | } |
| 4610 | ||
| 721956f4 AM |
4611 | /* Build a name for an entry in the stub hash table. */ |
| 4612 | ||
| 4613 | static char * | |
| 4ce794b7 AM |
4614 | ppc_stub_name (const asection *input_section, |
| 4615 | const asection *sym_sec, | |
| 4616 | const struct ppc_link_hash_entry *h, | |
| 4617 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4618 | { |
| 4619 | char *stub_name; | |
| bcaa2f82 | 4620 | ssize_t len; |
| 721956f4 AM |
4621 | |
| 4622 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4623 | offsets from a sym as a branch target? In fact, we could | |
| 4624 | probably assume the addend is always zero. */ | |
| 4625 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4626 | ||
| 4627 | if (h) | |
| 4628 | { | |
| 4629 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4630 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4631 | if (stub_name == NULL) |
| 4632 | return stub_name; | |
| 4633 | ||
| bcaa2f82 AM |
4634 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4635 | input_section->id & 0xffffffff, | |
| 4636 | h->elf.root.root.string, | |
| 4637 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4638 | } |
| 4639 | else | |
| 4640 | { | |
| ad8e1ba5 | 4641 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4642 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4643 | if (stub_name == NULL) |
| 4644 | return stub_name; | |
| 4645 | ||
| bcaa2f82 AM |
4646 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4647 | input_section->id & 0xffffffff, | |
| 4648 | sym_sec->id & 0xffffffff, | |
| 4649 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4650 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4651 | } |
| bcaa2f82 | 4652 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4653 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4654 | return stub_name; |
| 4655 | } | |
| 4656 | ||
| 4657 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4658 | creating the stub name takes a bit of time. */ | |
| 4659 | ||
| 4660 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4661 | ppc_get_stub_entry (const asection *input_section, |
| 4662 | const asection *sym_sec, | |
| 039b3fef | 4663 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4664 | const Elf_Internal_Rela *rel, |
| 4665 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4666 | { |
| 4667 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4668 | struct map_stub *group; |
| 721956f4 AM |
4669 | |
| 4670 | /* If this input section is part of a group of sections sharing one | |
| 4671 | stub section, then use the id of the first section in the group. | |
| 4672 | Stub names need to include a section id, as there may well be | |
| 4673 | more than one stub used to reach say, printf, and we need to | |
| 4674 | distinguish between them. */ | |
| 6f20ed8a | 4675 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4676 | if (group == NULL) |
| 4677 | return NULL; | |
| 721956f4 | 4678 | |
| b3fac117 AM |
4679 | if (h != NULL && h->u.stub_cache != NULL |
| 4680 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4681 | && h->u.stub_cache->group == group) |
| 721956f4 | 4682 | { |
| b3fac117 | 4683 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4684 | } |
| 4685 | else | |
| 4686 | { | |
| 4687 | char *stub_name; | |
| 4688 | ||
| 6f20ed8a | 4689 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4690 | if (stub_name == NULL) |
| 4691 | return NULL; | |
| 4692 | ||
| 4693 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4694 | stub_name, FALSE, FALSE); |
| 721956f4 | 4695 | if (h != NULL) |
| b3fac117 | 4696 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4697 | |
| 4698 | free (stub_name); | |
| 4699 | } | |
| 4700 | ||
| 4701 | return stub_entry; | |
| 4702 | } | |
| 4703 | ||
| 4704 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4705 | stub entry are initialised. */ | |
| 4706 | ||
| 4707 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4708 | ppc_add_stub (const char *stub_name, |
| 4709 | asection *section, | |
| 25f53a85 | 4710 | struct bfd_link_info *info) |
| 721956f4 | 4711 | { |
| 25f53a85 | 4712 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4713 | struct map_stub *group; |
| 721956f4 AM |
4714 | asection *link_sec; |
| 4715 | asection *stub_sec; | |
| 4716 | struct ppc_stub_hash_entry *stub_entry; | |
| 4717 | ||
| 6f20ed8a AM |
4718 | group = htab->sec_info[section->id].u.group; |
| 4719 | link_sec = group->link_sec; | |
| 4720 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4721 | if (stub_sec == NULL) |
| 4722 | { | |
| 6f20ed8a AM |
4723 | size_t namelen; |
| 4724 | bfd_size_type len; | |
| 4725 | char *s_name; | |
| 721956f4 | 4726 | |
| 6f20ed8a AM |
4727 | namelen = strlen (link_sec->name); |
| 4728 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4729 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4730 | if (s_name == NULL) | |
| 4731 | return NULL; | |
| 721956f4 | 4732 | |
| 6f20ed8a AM |
4733 | memcpy (s_name, link_sec->name, namelen); |
| 4734 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4735 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4736 | if (stub_sec == NULL) | |
| 4737 | return NULL; | |
| 4738 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4739 | } |
| 4740 | ||
| 4741 | /* Enter this entry into the linker stub hash table. */ | |
| 4742 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4743 | TRUE, FALSE); |
| 721956f4 AM |
4744 | if (stub_entry == NULL) |
| 4745 | { | |
| 695344c0 | 4746 | /* xgettext:c-format */ |
| cf97bcb0 AM |
4747 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
| 4748 | section->owner, stub_name); | |
| 721956f4 AM |
4749 | return NULL; |
| 4750 | } | |
| 4751 | ||
| 6f20ed8a | 4752 | stub_entry->group = group; |
| 721956f4 | 4753 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4754 | return stub_entry; |
| 4755 | } | |
| 4756 | ||
| e717da7e AM |
4757 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4758 | not already done. */ | |
| 65f38f15 | 4759 | |
| b34976b6 | 4760 | static bfd_boolean |
| e717da7e | 4761 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4762 | { |
| e717da7e AM |
4763 | asection *got, *relgot; |
| 4764 | flagword flags; | |
| 4765 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4766 | |
| 0c8d6e5c | 4767 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4768 | return FALSE; |
| 4dfe6ac6 NC |
4769 | if (htab == NULL) |
| 4770 | return FALSE; | |
| 0ffa91dd | 4771 | |
| 33e44f2e AM |
4772 | if (!htab->elf.sgot |
| 4773 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4774 | return FALSE; | |
| e717da7e AM |
4775 | |
| 4776 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4777 | | SEC_LINKER_CREATED); | |
| 4778 | ||
| c456f082 | 4779 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4780 | if (!got |
| e717da7e AM |
4781 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4782 | return FALSE; | |
| 65f38f15 | 4783 | |
| c456f082 AM |
4784 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4785 | flags | SEC_READONLY); | |
| e717da7e | 4786 | if (!relgot |
| e717da7e | 4787 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4788 | return FALSE; |
| e717da7e AM |
4789 | |
| 4790 | ppc64_elf_tdata (abfd)->got = got; | |
| 4791 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4792 | return TRUE; |
| 65f38f15 | 4793 | } |
| 5bd4f169 | 4794 | |
| b31867b6 AM |
4795 | /* Follow indirect and warning symbol links. */ |
| 4796 | ||
| 4797 | static inline struct bfd_link_hash_entry * | |
| 4798 | follow_link (struct bfd_link_hash_entry *h) | |
| 4799 | { | |
| 4800 | while (h->type == bfd_link_hash_indirect | |
| 4801 | || h->type == bfd_link_hash_warning) | |
| 4802 | h = h->u.i.link; | |
| 4803 | return h; | |
| 4804 | } | |
| 4805 | ||
| 4806 | static inline struct elf_link_hash_entry * | |
| 4807 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4808 | { | |
| 4809 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4810 | } | |
| 4811 | ||
| 4812 | static inline struct ppc_link_hash_entry * | |
| 4813 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4814 | { | |
| 4815 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4816 | } | |
| 4817 | ||
| 40d16e0b AM |
4818 | /* Merge PLT info on FROM with that on TO. */ |
| 4819 | ||
| 4820 | static void | |
| 4821 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4822 | struct ppc_link_hash_entry *to) | |
| 4823 | { | |
| 4824 | if (from->elf.plt.plist != NULL) | |
| 4825 | { | |
| 4826 | if (to->elf.plt.plist != NULL) | |
| 4827 | { | |
| 4828 | struct plt_entry **entp; | |
| 4829 | struct plt_entry *ent; | |
| 4830 | ||
| 4831 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4832 | { | |
| 4833 | struct plt_entry *dent; | |
| 4834 | ||
| 4835 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4836 | if (dent->addend == ent->addend) | |
| 4837 | { | |
| 4838 | dent->plt.refcount += ent->plt.refcount; | |
| 4839 | *entp = ent->next; | |
| 4840 | break; | |
| 4841 | } | |
| 4842 | if (dent == NULL) | |
| 4843 | entp = &ent->next; | |
| 4844 | } | |
| 4845 | *entp = to->elf.plt.plist; | |
| 4846 | } | |
| 4847 | ||
| 4848 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4849 | from->elf.plt.plist = NULL; | |
| 4850 | } | |
| 4851 | } | |
| 4852 | ||
| 65f38f15 AM |
4853 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4854 | ||
| 4855 | static void | |
| fcfa13d2 AM |
4856 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4857 | struct elf_link_hash_entry *dir, | |
| 4858 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4859 | { |
| 4860 | struct ppc_link_hash_entry *edir, *eind; | |
| 4861 | ||
| 4862 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4863 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4864 | ||
| c79d6685 AM |
4865 | edir->is_func |= eind->is_func; |
| 4866 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4867 | edir->tls_mask |= eind->tls_mask; | |
| 4868 | if (eind->oh != NULL) | |
| 4869 | edir->oh = ppc_follow_link (eind->oh); | |
| 4870 | ||
| 474436e6 | 4871 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4872 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4873 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4874 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4a7e5234 | 4875 | edir->elf.non_got_ref |= eind->elf.non_got_ref; |
| e81830c5 AM |
4876 | edir->elf.needs_plt |= eind->elf.needs_plt; |
| 4877 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4878 | |
| d311bc8b AM |
4879 | /* If we were called to copy over info for a weak sym, don't copy |
| 4880 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4881 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4882 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4883 | tests about a specific symbol, or affect other symbol flags which | |
| ab2477e1 | 4884 | are then tested. */ |
| d311bc8b | 4885 | if (eind->elf.root.type != bfd_link_hash_indirect) |
| ab2477e1 | 4886 | return; |
| d311bc8b | 4887 | |
| 411e1bfb | 4888 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4889 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4890 | { |
| bbd7ec4a AM |
4891 | if (edir->dyn_relocs != NULL) |
| 4892 | { | |
| 6061a67d AM |
4893 | struct elf_dyn_relocs **pp; |
| 4894 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4895 | |
| fcfa13d2 | 4896 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4897 | list. Merge any entries against the same section. */ |
| 4898 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4899 | { | |
| 6061a67d | 4900 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4901 | |
| 4902 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4903 | if (q->sec == p->sec) | |
| 4904 | { | |
| 4905 | q->pc_count += p->pc_count; | |
| 4906 | q->count += p->count; | |
| 4907 | *pp = p->next; | |
| 4908 | break; | |
| 4909 | } | |
| 4910 | if (q == NULL) | |
| 4911 | pp = &p->next; | |
| 4912 | } | |
| 4913 | *pp = edir->dyn_relocs; | |
| 4914 | } | |
| 4915 | ||
| 65f38f15 AM |
4916 | edir->dyn_relocs = eind->dyn_relocs; |
| 4917 | eind->dyn_relocs = NULL; | |
| 4918 | } | |
| 65f38f15 | 4919 | |
| 81848ca0 AM |
4920 | /* Copy over got entries that we may have already seen to the |
| 4921 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4922 | if (eind->elf.got.glist != NULL) |
| 4923 | { | |
| 4924 | if (edir->elf.got.glist != NULL) | |
| 4925 | { | |
| 4926 | struct got_entry **entp; | |
| 4927 | struct got_entry *ent; | |
| 4928 | ||
| 4929 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4930 | { | |
| 4931 | struct got_entry *dent; | |
| 4932 | ||
| 4933 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4934 | if (dent->addend == ent->addend | |
| e717da7e | 4935 | && dent->owner == ent->owner |
| 411e1bfb AM |
4936 | && dent->tls_type == ent->tls_type) |
| 4937 | { | |
| 4938 | dent->got.refcount += ent->got.refcount; | |
| 4939 | *entp = ent->next; | |
| 4940 | break; | |
| 4941 | } | |
| 4942 | if (dent == NULL) | |
| 4943 | entp = &ent->next; | |
| 4944 | } | |
| 4945 | *entp = edir->elf.got.glist; | |
| 4946 | } | |
| 4947 | ||
| 4948 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4949 | eind->elf.got.glist = NULL; | |
| 4950 | } | |
| 4951 | ||
| 4952 | /* And plt entries. */ | |
| 40d16e0b | 4953 | move_plt_plist (eind, edir); |
| 411e1bfb | 4954 | |
| fcfa13d2 | 4955 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4956 | { |
| fcfa13d2 AM |
4957 | if (edir->elf.dynindx != -1) |
| 4958 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4959 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4960 | edir->elf.dynindx = eind->elf.dynindx; |
| 4961 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4962 | eind->elf.dynindx = -1; | |
| 4963 | eind->elf.dynstr_index = 0; | |
| 4964 | } | |
| 411e1bfb AM |
4965 | } |
| 4966 | ||
| 8387904d AM |
4967 | /* Find the function descriptor hash entry from the given function code |
| 4968 | hash entry FH. Link the entries via their OH fields. */ | |
| 4969 | ||
| 4970 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4971 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4972 | { |
| 4973 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4974 | ||
| 4975 | if (fdh == NULL) | |
| 4976 | { | |
| 4977 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4978 | ||
| 4979 | fdh = (struct ppc_link_hash_entry *) | |
| 4980 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4981 | if (fdh == NULL) |
| 4982 | return fdh; | |
| 4983 | ||
| 4984 | fdh->is_func_descriptor = 1; | |
| 4985 | fdh->oh = fh; | |
| 4986 | fh->is_func = 1; | |
| 4987 | fh->oh = fdh; | |
| 8387904d AM |
4988 | } |
| 4989 | ||
| 8c5b4e52 AM |
4990 | fdh = ppc_follow_link (fdh); |
| 4991 | fdh->is_func_descriptor = 1; | |
| 4992 | fdh->oh = fh; | |
| 4993 | return fdh; | |
| 8387904d AM |
4994 | } |
| 4995 | ||
| 8c5b4e52 | 4996 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4997 | |
| 4998 | static struct ppc_link_hash_entry * | |
| 4999 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 5000 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 5001 | { |
| 8c5b4e52 AM |
5002 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 5003 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 5004 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
5005 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 5006 | ? BSF_WEAK | |
| 5007 | : BSF_GLOBAL); | |
| 5008 | ||
| 5009 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 5010 | fh->elf.root.root.string + 1, | |
| 5011 | flags, bfd_und_section_ptr, 0, | |
| 5012 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
5013 | return NULL; |
| 5014 | ||
| 5015 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 5016 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
5017 | fdh->fake = 1; |
| 5018 | fdh->is_func_descriptor = 1; | |
| 5019 | fdh->oh = fh; | |
| 5020 | fh->is_func = 1; | |
| 5021 | fh->oh = fdh; | |
| bb700d78 AM |
5022 | return fdh; |
| 5023 | } | |
| 5024 | ||
| 8387904d AM |
5025 | /* Fix function descriptor symbols defined in .opd sections to be |
| 5026 | function type. */ | |
| 555cd476 AM |
5027 | |
| 5028 | static bfd_boolean | |
| c16153ae | 5029 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 5030 | struct bfd_link_info *info, |
| 555cd476 | 5031 | Elf_Internal_Sym *isym, |
| 6911b7dc | 5032 | const char **name, |
| 555cd476 AM |
5033 | flagword *flags ATTRIBUTE_UNUSED, |
| 5034 | asection **sec, | |
| b53dfeb2 | 5035 | bfd_vma *value) |
| 555cd476 | 5036 | { |
| a43942db | 5037 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
5038 | && (ibfd->flags & DYNAMIC) == 0 |
| 5039 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 5040 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 5041 | |
| b53dfeb2 | 5042 | if (*sec != NULL |
| f1885d1e | 5043 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
5044 | { |
| 5045 | asection *code_sec; | |
| 5046 | ||
| 5047 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 5048 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 5049 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 5050 | ||
| 5051 | /* If the symbol is a function defined in .opd, and the function | |
| 5052 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 5053 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
5054 | && (*sec)->reloc_count != 0 |
| 5055 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 5056 | FALSE) != (bfd_vma) -1 | |
| 5057 | && discarded_section (code_sec)) | |
| 5058 | { | |
| 5059 | *sec = bfd_und_section_ptr; | |
| 5060 | isym->st_shndx = SHN_UNDEF; | |
| 5061 | } | |
| 5062 | } | |
| dbd1e97e AM |
5063 | else if (*sec != NULL |
| 5064 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 5065 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 5066 | { | |
| 5067 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 5068 | if (htab != NULL) | |
| 5069 | htab->params->object_in_toc = 1; | |
| 5070 | } | |
| 433817dd | 5071 | |
| 6911b7dc AM |
5072 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5073 | { | |
| 5074 | if (abiversion (ibfd) == 0) | |
| 5075 | set_abiversion (ibfd, 2); | |
| 5076 | else if (abiversion (ibfd) == 1) | |
| 5077 | { | |
| cf97bcb0 AM |
5078 | _bfd_error_handler (_("symbol '%s' has invalid st_other" |
| 5079 | " for ABI version 1"), *name); | |
| 6911b7dc AM |
5080 | bfd_set_error (bfd_error_bad_value); |
| 5081 | return FALSE; | |
| 5082 | } | |
| 5083 | } | |
| 5084 | ||
| 555cd476 AM |
5085 | return TRUE; |
| 5086 | } | |
| 5087 | ||
| 6911b7dc AM |
5088 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 5089 | ||
| 5090 | static void | |
| 5091 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5092 | const Elf_Internal_Sym *isym, | |
| 5093 | bfd_boolean definition, | |
| 5094 | bfd_boolean dynamic) | |
| 5095 | { | |
| f378ab09 | 5096 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5097 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5098 | | ELF_ST_VISIBILITY (h->other)); | |
| 5099 | } | |
| 5100 | ||
| 8c5b4e52 AM |
5101 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5102 | we now have a real symbol. */ | |
| 5103 | ||
| 5104 | static bfd_boolean | |
| 5105 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5106 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5107 | asection **psec ATTRIBUTE_UNUSED, |
| 5108 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5109 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5110 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5111 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5112 | { | |
| 5113 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5114 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5115 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5116 | return TRUE; |
| 5117 | } | |
| 5118 | ||
| 8387904d | 5119 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5120 | inclusion of a new ABI object archive that defines "bar". |
| 5121 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5122 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5123 | |
| 5124 | static struct elf_link_hash_entry * | |
| 5125 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5126 | struct bfd_link_info *info, | |
| 5127 | const char *name) | |
| 5128 | { | |
| 5129 | struct elf_link_hash_entry *h; | |
| 5130 | char *dot_name; | |
| 5131 | size_t len; | |
| 5132 | ||
| 5133 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5134 | if (h != NULL |
| 5135 | /* Don't return this sym if it is a fake function descriptor | |
| 5136 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5137 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5138 | return h; |
| 5139 | ||
| 5140 | if (name[0] == '.') | |
| 5141 | return h; | |
| 5142 | ||
| 5143 | len = strlen (name); | |
| 5144 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5145 | if (dot_name == NULL) | |
| e99955cd | 5146 | return (struct elf_link_hash_entry *) -1; |
| 8387904d AM |
5147 | dot_name[0] = '.'; |
| 5148 | memcpy (dot_name + 1, name, len + 1); | |
| 5149 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5150 | bfd_release (abfd, dot_name); | |
| 5151 | return h; | |
| 5152 | } | |
| 5153 | ||
| 5154 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5155 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5156 | are made weak. This stops later archive searches from including an | |
| 5157 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5158 | prevents the linker complaining about undefined symbols. |
| 5159 | We also check and correct mismatched symbol visibility here. The | |
| 5160 | most restrictive visibility of the function descriptor and the | |
| 5161 | function entry symbol is used. */ | |
| 8387904d AM |
5162 | |
| 5163 | static bfd_boolean | |
| b3fac117 | 5164 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5165 | { |
| 8387904d AM |
5166 | struct ppc_link_hash_table *htab; |
| 5167 | struct ppc_link_hash_entry *fdh; | |
| 5168 | ||
| b3fac117 AM |
5169 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5170 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5171 | |
| 8400d40d AM |
5172 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5173 | return TRUE; | |
| 5174 | ||
| b3fac117 AM |
5175 | if (eh->elf.root.root.string[0] != '.') |
| 5176 | abort (); | |
| 8387904d | 5177 | |
| b3fac117 | 5178 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5179 | if (htab == NULL) |
| 5180 | return FALSE; | |
| 5181 | ||
| b31867b6 | 5182 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5183 | if (fdh == NULL |
| 5184 | && !bfd_link_relocatable (info) | |
| 5185 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5186 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5187 | && eh->elf.ref_regular) | |
| 5188 | { | |
| 5189 | /* Make an undefined function descriptor sym, in order to | |
| 5190 | pull in an --as-needed shared lib. Archives are handled | |
| 5191 | elsewhere. */ | |
| 5192 | fdh = make_fdh (info, eh); | |
| 5193 | if (fdh == NULL) | |
| 5194 | return FALSE; | |
| bb700d78 | 5195 | } |
| 8c5b4e52 AM |
5196 | |
| 5197 | if (fdh != NULL) | |
| 8387904d | 5198 | { |
| 35b0ce59 AM |
5199 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5200 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5201 | |
| 5202 | /* Make both descriptor and entry symbol have the most | |
| 5203 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5204 | if (entry_vis < descr_vis) |
| 5205 | fdh->elf.other += entry_vis - descr_vis; | |
| 5206 | else if (entry_vis > descr_vis) | |
| 5207 | eh->elf.other += descr_vis - entry_vis; | |
| 5208 | ||
| 8c5b4e52 AM |
5209 | /* Propagate reference flags from entry symbol to function |
| 5210 | descriptor symbol. */ | |
| bc4e12de | 5211 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5212 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5213 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5214 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5215 | ||
| 5216 | if (!fdh->elf.forced_local | |
| 5217 | && fdh->elf.dynindx == -1 | |
| 5218 | && fdh->elf.versioned != versioned_hidden | |
| 5219 | && (bfd_link_dll (info) | |
| 5220 | || fdh->elf.def_dynamic | |
| 5221 | || fdh->elf.ref_dynamic) | |
| 5222 | && (eh->elf.ref_regular | |
| 5223 | || eh->elf.def_regular)) | |
| 5224 | { | |
| 5225 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5226 | return FALSE; | |
| 35b0ce59 | 5227 | } |
| 8387904d | 5228 | } |
| 99877b66 | 5229 | |
| 8387904d AM |
5230 | return TRUE; |
| 5231 | } | |
| 5232 | ||
| f6c7c3e8 AM |
5233 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5234 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5235 | |
| 8387904d | 5236 | static bfd_boolean |
| f6c7c3e8 | 5237 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5238 | { |
| 99877b66 | 5239 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5240 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5241 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5242 | |
| 459609d6 | 5243 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5244 | { |
| b9399fcf AM |
5245 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); |
| 5246 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| 5247 | ||
| 459609d6 AM |
5248 | if (abiversion (ibfd) == 0) |
| 5249 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5250 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5251 | { |
| 695344c0 | 5252 | /* xgettext:c-format */ |
| cf97bcb0 AM |
5253 | _bfd_error_handler (_("%pB .opd not allowed in ABI version %d"), |
| 5254 | ibfd, abiversion (ibfd)); | |
| 459609d6 AM |
5255 | bfd_set_error (bfd_error_bad_value); |
| 5256 | return FALSE; | |
| f6c7c3e8 | 5257 | } |
| b9399fcf | 5258 | } |
| f6c7c3e8 | 5259 | |
| b9399fcf AM |
5260 | if (is_ppc64_elf (info->output_bfd)) |
| 5261 | { | |
| 5262 | /* For input files without an explicit abiversion in e_flags | |
| 5263 | we should have flagged any with symbol st_other bits set | |
| 5264 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5265 | Set the output abiversion if not yet set, and for any input | |
| 5266 | still ambiguous, take its abiversion from the output. | |
| 5267 | Differences in ABI are reported later. */ | |
| 5268 | if (abiversion (info->output_bfd) == 0) | |
| 5269 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5270 | else if (abiversion (ibfd) == 0) | |
| 5271 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| b3fac117 AM |
5272 | } |
| 5273 | ||
| 459609d6 AM |
5274 | htab = ppc_hash_table (info); |
| 5275 | if (htab == NULL) | |
| b9399fcf | 5276 | return TRUE; |
| 459609d6 | 5277 | |
| b9399fcf AM |
5278 | if (opd != NULL && opd->size != 0 |
| 5279 | && (ibfd->flags & DYNAMIC) == 0 | |
| 5280 | && (opd->flags & SEC_RELOC) != 0 | |
| 5281 | && opd->reloc_count != 0 | |
| 5282 | && !bfd_is_abs_section (opd->output_section) | |
| 5283 | && info->gc_sections) | |
| 5284 | { | |
| 5285 | /* Garbage collection needs some extra help with .opd sections. | |
| 5286 | We don't want to necessarily keep everything referenced by | |
| 5287 | relocs in .opd, as that would keep all functions. Instead, | |
| 5288 | if we reference an .opd symbol (a function descriptor), we | |
| 5289 | want to keep the function code symbol's section. This is | |
| 5290 | easy for global symbols, but for local syms we need to keep | |
| 5291 | information about the associated function section. */ | |
| 5292 | bfd_size_type amt; | |
| 5293 | asection **opd_sym_map; | |
| 5294 | Elf_Internal_Shdr *symtab_hdr; | |
| 5295 | Elf_Internal_Rela *relocs, *rel_end, *rel; | |
| 5296 | ||
| 5297 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); | |
| 5298 | opd_sym_map = bfd_zalloc (ibfd, amt); | |
| 5299 | if (opd_sym_map == NULL) | |
| 5300 | return FALSE; | |
| 5301 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; | |
| 5302 | relocs = _bfd_elf_link_read_relocs (ibfd, opd, NULL, NULL, | |
| 5303 | info->keep_memory); | |
| 5304 | if (relocs == NULL) | |
| 5305 | return FALSE; | |
| 5306 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 5307 | rel_end = relocs + opd->reloc_count - 1; | |
| 5308 | for (rel = relocs; rel < rel_end; rel++) | |
| 5309 | { | |
| 5310 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 5311 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5312 | ||
| 5313 | if (r_type == R_PPC64_ADDR64 | |
| 5314 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC | |
| 5315 | && r_symndx < symtab_hdr->sh_info) | |
| 5316 | { | |
| 5317 | Elf_Internal_Sym *isym; | |
| 5318 | asection *s; | |
| 5319 | ||
| 5320 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, r_symndx); | |
| 5321 | if (isym == NULL) | |
| 5322 | { | |
| 5323 | if (elf_section_data (opd)->relocs != relocs) | |
| 5324 | free (relocs); | |
| 5325 | return FALSE; | |
| 5326 | } | |
| 5327 | ||
| 5328 | s = bfd_section_from_elf_index (ibfd, isym->st_shndx); | |
| 5329 | if (s != NULL && s != opd) | |
| 5330 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; | |
| 5331 | } | |
| 5332 | } | |
| 5333 | if (elf_section_data (opd)->relocs != relocs) | |
| 5334 | free (relocs); | |
| 5335 | } | |
| 459609d6 AM |
5336 | |
| 5337 | p = &htab->dot_syms; | |
| 5338 | while ((eh = *p) != NULL) | |
| 5339 | { | |
| 5340 | *p = NULL; | |
| 5341 | if (&eh->elf == htab->elf.hgot) | |
| 5342 | ; | |
| 5343 | else if (htab->elf.hgot == NULL | |
| 5344 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5345 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5346 | else if (abiversion (ibfd) <= 1) |
| 5347 | { | |
| 5348 | htab->need_func_desc_adj = 1; | |
| 5349 | if (!add_symbol_adjust (eh, info)) | |
| 5350 | return FALSE; | |
| 5351 | } | |
| 459609d6 AM |
5352 | p = &eh->u.next_dot_sym; |
| 5353 | } | |
| b3fac117 | 5354 | return TRUE; |
| 8387904d AM |
5355 | } |
| 5356 | ||
| 97fed1c9 JJ |
5357 | /* Undo hash table changes when an --as-needed input file is determined |
| 5358 | not to be needed. */ | |
| 5359 | ||
| 5360 | static bfd_boolean | |
| e5034e59 AM |
5361 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5362 | struct bfd_link_info *info, | |
| 5363 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5364 | { |
| e5034e59 AM |
5365 | if (act == notice_not_needed) |
| 5366 | { | |
| 5367 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5368 | |
| e5034e59 AM |
5369 | if (htab == NULL) |
| 5370 | return FALSE; | |
| 4dfe6ac6 | 5371 | |
| e5034e59 AM |
5372 | htab->dot_syms = NULL; |
| 5373 | } | |
| 5374 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5375 | } |
| 5376 | ||
| aa374f67 AM |
5377 | /* If --just-symbols against a final linked binary, then assume we need |
| 5378 | toc adjusting stubs when calling functions defined there. */ | |
| 5379 | ||
| 5380 | static void | |
| 5381 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5382 | { | |
| 5383 | if ((sec->flags & SEC_CODE) != 0 | |
| 5384 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5385 | && is_ppc64_elf (sec->owner)) | |
| 5386 | { | |
| 2c3f079f AM |
5387 | if (abiversion (sec->owner) >= 2 |
| 5388 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5389 | sec->has_toc_reloc = 1; |
| 5390 | } | |
| 5391 | _bfd_elf_link_just_syms (sec, info); | |
| 5392 | } | |
| 5393 | ||
| e054468f | 5394 | static struct plt_entry ** |
| 4ce794b7 AM |
5395 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5396 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5397 | { |
| 5398 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5399 | struct plt_entry **local_plt; |
| f961d9dd | 5400 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5401 | |
| 5402 | if (local_got_ents == NULL) | |
| 5403 | { | |
| 5404 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5405 | ||
| e054468f AM |
5406 | size *= (sizeof (*local_got_ents) |
| 5407 | + sizeof (*local_plt) | |
| 5408 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5409 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5410 | if (local_got_ents == NULL) |
| e054468f | 5411 | return NULL; |
| 411e1bfb AM |
5412 | elf_local_got_ents (abfd) = local_got_ents; |
| 5413 | } | |
| 5414 | ||
| 37da22e5 | 5415 | if ((tls_type & (NON_GOT | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5416 | { |
| 5417 | struct got_entry *ent; | |
| 5418 | ||
| 5419 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5420 | if (ent->addend == r_addend |
| 5421 | && ent->owner == abfd | |
| 5422 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5423 | break; |
| 5424 | if (ent == NULL) | |
| 5425 | { | |
| 5426 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5427 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5428 | if (ent == NULL) |
| 5429 | return FALSE; | |
| 5430 | ent->next = local_got_ents[r_symndx]; | |
| 5431 | ent->addend = r_addend; | |
| e717da7e | 5432 | ent->owner = abfd; |
| 411e1bfb | 5433 | ent->tls_type = tls_type; |
| 927be08e | 5434 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5435 | ent->got.refcount = 0; |
| 5436 | local_got_ents[r_symndx] = ent; | |
| 5437 | } | |
| 5438 | ent->got.refcount += 1; | |
| 5439 | } | |
| 5440 | ||
| e054468f | 5441 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5442 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| 37da22e5 | 5443 | local_got_tls_masks[r_symndx] |= tls_type & 0xff; |
| e054468f AM |
5444 | |
| 5445 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5446 | } |
| 5447 | ||
| 411e1bfb | 5448 | static bfd_boolean |
| e054468f | 5449 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5450 | { |
| 411e1bfb | 5451 | struct plt_entry *ent; |
| 1e2f5b6e | 5452 | |
| e054468f | 5453 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5454 | if (ent->addend == addend) |
| 5455 | break; | |
| 5456 | if (ent == NULL) | |
| 1e2f5b6e | 5457 | { |
| 411e1bfb | 5458 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5459 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5460 | if (ent == NULL) |
| 5461 | return FALSE; | |
| e054468f | 5462 | ent->next = *plist; |
| 411e1bfb AM |
5463 | ent->addend = addend; |
| 5464 | ent->plt.refcount = 0; | |
| e054468f | 5465 | *plist = ent; |
| 1e2f5b6e | 5466 | } |
| 411e1bfb | 5467 | ent->plt.refcount += 1; |
| b34976b6 | 5468 | return TRUE; |
| 1e2f5b6e AM |
5469 | } |
| 5470 | ||
| e054468f AM |
5471 | static bfd_boolean |
| 5472 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5473 | { | |
| 5474 | return (r_type == R_PPC64_REL24 | |
| 5475 | || r_type == R_PPC64_REL14 | |
| 5476 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5477 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5478 | || r_type == R_PPC64_ADDR24 | |
| 5479 | || r_type == R_PPC64_ADDR14 | |
| 5480 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 23cedd1d AM |
5481 | || r_type == R_PPC64_ADDR14_BRNTAKEN |
| 5482 | || r_type == R_PPC64_PLTCALL); | |
| 5483 | } | |
| 5484 | ||
| 5485 | /* Relocs on inline plt call sequence insns prior to the call. */ | |
| 5486 | ||
| 5487 | static bfd_boolean | |
| 5488 | is_plt_seq_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5489 | { | |
| 5490 | return (r_type == R_PPC64_PLT16_HA | |
| 5491 | || r_type == R_PPC64_PLT16_HI | |
| 5492 | || r_type == R_PPC64_PLT16_LO | |
| 5493 | || r_type == R_PPC64_PLT16_LO_DS | |
| 5494 | || r_type == R_PPC64_PLTSEQ); | |
| e054468f AM |
5495 | } |
| 5496 | ||
| 5bd4f169 | 5497 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5498 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5499 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5500 | |
| b34976b6 | 5501 | static bfd_boolean |
| 4ce794b7 AM |
5502 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5503 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5504 | { |
| 65f38f15 | 5505 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5506 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5507 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5508 | const Elf_Internal_Rela *rel; |
| 5509 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5510 | asection *sreloc; |
| 3a71aa26 | 5511 | struct elf_link_hash_entry *tga, *dottga; |
| b9399fcf | 5512 | bfd_boolean is_opd; |
| 5bd4f169 | 5513 | |
| 0e1862bb | 5514 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5515 | return TRUE; |
| 5bd4f169 | 5516 | |
| 680a3378 AM |
5517 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5518 | In particular, any relocs in such sections should not affect GOT | |
| 5519 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5520 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5521 | relocs, and there's not much point in propagating relocs to shared | |
| 5522 | libs that the dynamic linker won't relocate. */ | |
| 5523 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5524 | return TRUE; | |
| 5525 | ||
| 0c8d6e5c | 5526 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5527 | |
| 65f38f15 | 5528 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5529 | if (htab == NULL) |
| 5530 | return FALSE; | |
| 5531 | ||
| 3a71aa26 AM |
5532 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5533 | FALSE, FALSE, TRUE); | |
| 5534 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5535 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5536 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5537 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5538 | sreloc = NULL; |
| b9399fcf | 5539 | is_opd = ppc64_elf_section_data (sec)->sec_type == sec_opd; |
| 5bd4f169 AM |
5540 | rel_end = relocs + sec->reloc_count; |
| 5541 | for (rel = relocs; rel < rel_end; rel++) | |
| 5542 | { | |
| 5543 | unsigned long r_symndx; | |
| 5544 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5545 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5546 | int tls_type; |
| 7c8fe5c4 | 5547 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5548 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5549 | |
| 5550 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5551 | if (r_symndx < symtab_hdr->sh_info) | |
| 5552 | h = NULL; | |
| 5553 | else | |
| 973a3492 L |
5554 | { |
| 5555 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5556 | h = elf_follow_link (h); |
| 1c865ab2 AM |
5557 | |
| 5558 | if (h == htab->elf.hgot) | |
| 5559 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5560 | } |
| 5bd4f169 | 5561 | |
| 727fc41e | 5562 | tls_type = 0; |
| e054468f | 5563 | ifunc = NULL; |
| 25f23106 AM |
5564 | if (h != NULL) |
| 5565 | { | |
| 5566 | if (h->type == STT_GNU_IFUNC) | |
| 5567 | { | |
| 5568 | h->needs_plt = 1; | |
| 5569 | ifunc = &h->plt.plist; | |
| 5570 | } | |
| 5571 | } | |
| 5572 | else | |
| 5573 | { | |
| 5574 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5575 | abfd, r_symndx); | |
| 5576 | if (isym == NULL) | |
| 5577 | return FALSE; | |
| 5578 | ||
| 5579 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5580 | { | |
| 5581 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 37da22e5 AM |
5582 | rel->r_addend, |
| 5583 | NON_GOT | PLT_IFUNC); | |
| 25f23106 AM |
5584 | if (ifunc == NULL) |
| 5585 | return FALSE; | |
| 5586 | } | |
| 5587 | } | |
| 727fc41e | 5588 | |
| cbf95972 | 5589 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5590 | switch (r_type) |
| 5bd4f169 | 5591 | { |
| 727fc41e AM |
5592 | case R_PPC64_TLSGD: |
| 5593 | case R_PPC64_TLSLD: | |
| 5594 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5595 | its parameter symbol. */ | |
| 37da22e5 AM |
5596 | if (h != NULL) |
| 5597 | ((struct ppc_link_hash_entry *) h)->tls_mask |= TLS_TLS | TLS_MARK; | |
| 5598 | else | |
| 5599 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5600 | rel->r_addend, | |
| 5601 | NON_GOT | TLS_TLS | TLS_MARK)) | |
| 5602 | return FALSE; | |
| 5603 | sec->has_tls_reloc = 1; | |
| 727fc41e AM |
5604 | break; |
| 5605 | ||
| 411e1bfb AM |
5606 | case R_PPC64_GOT_TLSLD16: |
| 5607 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5608 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5609 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5610 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5611 | goto dogottls; |
| 5612 | ||
| 5613 | case R_PPC64_GOT_TLSGD16: | |
| 5614 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5615 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5616 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5617 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5618 | goto dogottls; |
| 5619 | ||
| 5620 | case R_PPC64_GOT_TPREL16_DS: | |
| 5621 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5622 | case R_PPC64_GOT_TPREL16_HI: | |
| 5623 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5624 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5625 | info->flags |= DF_STATIC_TLS; |
| 5626 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5627 | goto dogottls; | |
| 5628 | ||
| 5629 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5630 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5631 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5632 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5633 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5634 | dogottls: | |
| 5635 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5636 | /* Fall through */ |
| 411e1bfb | 5637 | |
| 5bd4f169 | 5638 | case R_PPC64_GOT16: |
| 5bd4f169 | 5639 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5640 | case R_PPC64_GOT16_HA: |
| 5641 | case R_PPC64_GOT16_HI: | |
| 5642 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5643 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5644 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5645 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5646 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5647 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5648 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5649 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5650 | || r_type == R_PPC64_GOT16 | |
| 5651 | || r_type == R_PPC64_GOT16_DS) | |
| 5652 | { | |
| 5653 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5654 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5655 | } |
| 5656 | ||
| e717da7e AM |
5657 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5658 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5659 | return FALSE; |
| 5bd4f169 AM |
5660 | |
| 5661 | if (h != NULL) | |
| 5662 | { | |
| 411e1bfb AM |
5663 | struct ppc_link_hash_entry *eh; |
| 5664 | struct got_entry *ent; | |
| 65f38f15 | 5665 | |
| 411e1bfb AM |
5666 | eh = (struct ppc_link_hash_entry *) h; |
| 5667 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5668 | if (ent->addend == rel->r_addend | |
| e717da7e | 5669 | && ent->owner == abfd |
| 411e1bfb AM |
5670 | && ent->tls_type == tls_type) |
| 5671 | break; | |
| 5672 | if (ent == NULL) | |
| 5bd4f169 | 5673 | { |
| 411e1bfb | 5674 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5675 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5676 | if (ent == NULL) |
| b34976b6 | 5677 | return FALSE; |
| 411e1bfb AM |
5678 | ent->next = eh->elf.got.glist; |
| 5679 | ent->addend = rel->r_addend; | |
| e717da7e | 5680 | ent->owner = abfd; |
| 411e1bfb | 5681 | ent->tls_type = tls_type; |
| 927be08e | 5682 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5683 | ent->got.refcount = 0; |
| 5684 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5685 | } |
| 411e1bfb | 5686 | ent->got.refcount += 1; |
| e7b938ca | 5687 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5688 | } |
| 411e1bfb AM |
5689 | else |
| 5690 | /* This is a global offset table entry for a local symbol. */ | |
| 5691 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5692 | rel->r_addend, tls_type)) | |
| 5693 | return FALSE; | |
| a345bc8d AM |
5694 | |
| 5695 | /* We may also need a plt entry if the symbol turns out to be | |
| 5696 | an ifunc. */ | |
| 0e1862bb | 5697 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5698 | { |
| 5699 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5700 | return FALSE; | |
| 5701 | } | |
| 5bd4f169 AM |
5702 | break; |
| 5703 | ||
| 5bd4f169 | 5704 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5705 | case R_PPC64_PLT16_HI: |
| 5706 | case R_PPC64_PLT16_LO: | |
| 08be3224 | 5707 | case R_PPC64_PLT16_LO_DS: |
| 65f38f15 AM |
5708 | case R_PPC64_PLT32: |
| 5709 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5710 | /* This symbol requires a procedure linkage table entry. */ |
| 5711 | plt_list = ifunc; | |
| 5712 | if (h != NULL) | |
| e054468f | 5713 | { |
| e054468f AM |
5714 | h->needs_plt = 1; |
| 5715 | if (h->root.root.string[0] == '.' | |
| 5716 | && h->root.root.string[1] != '\0') | |
| 5717 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 2d7ad24e | 5718 | ((struct ppc_link_hash_entry *) h)->tls_mask |= PLT_KEEP; |
| cbf95972 AM |
5719 | plt_list = &h->plt.plist; |
| 5720 | } | |
| 5721 | if (plt_list == NULL) | |
| 2d7ad24e AM |
5722 | plt_list = update_local_sym_info (abfd, symtab_hdr, r_symndx, |
| 5723 | rel->r_addend, | |
| 5724 | NON_GOT | PLT_KEEP); | |
| cbf95972 AM |
5725 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5726 | return FALSE; | |
| 5bd4f169 AM |
5727 | break; |
| 5728 | ||
| 5729 | /* The following relocations don't need to propagate the | |
| 5730 | relocation if linking a shared object since they are | |
| 5731 | section relative. */ | |
| 5732 | case R_PPC64_SECTOFF: | |
| 5733 | case R_PPC64_SECTOFF_LO: | |
| 5734 | case R_PPC64_SECTOFF_HI: | |
| 5735 | case R_PPC64_SECTOFF_HA: | |
| 5736 | case R_PPC64_SECTOFF_DS: | |
| 5737 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5738 | case R_PPC64_DTPREL16: |
| 5739 | case R_PPC64_DTPREL16_LO: | |
| 5740 | case R_PPC64_DTPREL16_HI: | |
| 5741 | case R_PPC64_DTPREL16_HA: | |
| 5742 | case R_PPC64_DTPREL16_DS: | |
| 5743 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5744 | case R_PPC64_DTPREL16_HIGH: |
| 5745 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5746 | case R_PPC64_DTPREL16_HIGHER: |
| 5747 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5748 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5749 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5750 | break; |
| 5751 | ||
| ad8e1ba5 | 5752 | /* Nor do these. */ |
| 25f23106 AM |
5753 | case R_PPC64_REL16: |
| 5754 | case R_PPC64_REL16_LO: | |
| 5755 | case R_PPC64_REL16_HI: | |
| 5756 | case R_PPC64_REL16_HA: | |
| a680de9a | 5757 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5758 | break; |
| 5759 | ||
| 45965137 AM |
5760 | /* Not supported as a dynamic relocation. */ |
| 5761 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5762 | if (bfd_link_pic (info)) |
| 45965137 AM |
5763 | { |
| 5764 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5765 | ppc_howto_init (); | |
| 695344c0 | 5766 | /* xgettext:c-format */ |
| 174d0a74 | 5767 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| cf97bcb0 | 5768 | "in shared libraries and PIEs\n"), |
| 45965137 AM |
5769 | abfd, sec, rel->r_offset, |
| 5770 | ppc64_elf_howto_table[r_type]->name); | |
| 5771 | bfd_set_error (bfd_error_bad_value); | |
| 5772 | return FALSE; | |
| 5773 | } | |
| 5774 | break; | |
| 5775 | ||
| ad8e1ba5 | 5776 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5777 | case R_PPC64_TOC16_DS: |
| 5778 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5779 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5780 | /* Fall through. */ |
| ad8e1ba5 AM |
5781 | case R_PPC64_TOC16_LO: |
| 5782 | case R_PPC64_TOC16_HI: | |
| 5783 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5784 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5785 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5786 | break; |
| 5787 | ||
| 006589cf AM |
5788 | /* Marker reloc. */ |
| 5789 | case R_PPC64_ENTRY: | |
| 5790 | break; | |
| 5791 | ||
| 5bd4f169 AM |
5792 | /* This relocation describes the C++ object vtable hierarchy. |
| 5793 | Reconstruct it for later use during GC. */ | |
| 5794 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5795 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5796 | return FALSE; |
| 5bd4f169 AM |
5797 | break; |
| 5798 | ||
| 5799 | /* This relocation describes which C++ vtable entries are actually | |
| 5800 | used. Record for later use during GC. */ | |
| 5801 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5802 | BFD_ASSERT (h != NULL); |
| 5803 | if (h != NULL | |
| 5804 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5805 | return FALSE; |
| 5bd4f169 AM |
5806 | break; |
| 5807 | ||
| 721956f4 AM |
5808 | case R_PPC64_REL14: |
| 5809 | case R_PPC64_REL14_BRTAKEN: | |
| 5810 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5811 | { |
| 5812 | asection *dest = NULL; | |
| 5813 | ||
| 5814 | /* Heuristic: If jumping outside our section, chances are | |
| 5815 | we are going to need a stub. */ | |
| 5816 | if (h != NULL) | |
| 5817 | { | |
| 5818 | /* If the sym is weak it may be overridden later, so | |
| 5819 | don't assume we know where a weak sym lives. */ | |
| 5820 | if (h->root.type == bfd_link_hash_defined) | |
| 5821 | dest = h->root.u.def.section; | |
| 5822 | } | |
| 5823 | else | |
| 87d72d41 AM |
5824 | { |
| 5825 | Elf_Internal_Sym *isym; | |
| 5826 | ||
| 5827 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5828 | abfd, r_symndx); | |
| 5829 | if (isym == NULL) | |
| 5830 | return FALSE; | |
| 5831 | ||
| 5832 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5833 | } | |
| 5834 | ||
| 220c76dd | 5835 | if (dest != sec) |
| 7c8fe5c4 | 5836 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5837 | } |
| 3e04d765 AM |
5838 | goto rel24; |
| 5839 | ||
| 5840 | case R_PPC64_PLTCALL: | |
| 5841 | ppc64_elf_section_data (sec)->has_pltcall = 1; | |
| 721956f4 AM |
5842 | /* Fall through. */ |
| 5843 | ||
| 5d1634d7 | 5844 | case R_PPC64_REL24: |
| 3e04d765 | 5845 | rel24: |
| cbf95972 AM |
5846 | plt_list = ifunc; |
| 5847 | if (h != NULL) | |
| 5d1634d7 | 5848 | { |
| e054468f AM |
5849 | h->needs_plt = 1; |
| 5850 | if (h->root.root.string[0] == '.' | |
| 5851 | && h->root.root.string[1] != '\0') | |
| 5852 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5853 | |
| 3a71aa26 | 5854 | if (h == tga || h == dottga) |
| cbf95972 AM |
5855 | { |
| 5856 | sec->has_tls_reloc = 1; | |
| 5857 | if (rel != relocs | |
| 5858 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5859 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5860 | /* We have a new-style __tls_get_addr call with | |
| 5861 | a marker reloc. */ | |
| 5862 | ; | |
| 5863 | else | |
| 5864 | /* Mark this section as having an old-style call. */ | |
| 5865 | sec->has_tls_get_addr_call = 1; | |
| 5866 | } | |
| 5867 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5868 | } |
| cbf95972 AM |
5869 | |
| 5870 | /* We may need a .plt entry if the function this reloc | |
| 5871 | refers to is in a shared lib. */ | |
| 5872 | if (plt_list | |
| 5873 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5874 | return FALSE; | |
| 411e1bfb AM |
5875 | break; |
| 5876 | ||
| cbf95972 AM |
5877 | case R_PPC64_ADDR14: |
| 5878 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5879 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5880 | case R_PPC64_ADDR24: | |
| 5881 | goto dodyn; | |
| 5882 | ||
| 411e1bfb AM |
5883 | case R_PPC64_TPREL64: |
| 5884 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5885 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5886 | info->flags |= DF_STATIC_TLS; |
| 5887 | goto dotlstoc; | |
| 5888 | ||
| 5889 | case R_PPC64_DTPMOD64: | |
| 5890 | if (rel + 1 < rel_end | |
| 5891 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5892 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5893 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5894 | else |
| 951fd09b | 5895 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5896 | goto dotlstoc; |
| 5897 | ||
| 5898 | case R_PPC64_DTPREL64: | |
| 5899 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5900 | if (rel != relocs | |
| 5901 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5902 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5903 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5904 | Don't mark with TLS_DTPREL. */ | |
| 5905 | goto dodyn; | |
| 5906 | ||
| 5907 | dotlstoc: | |
| 5908 | sec->has_tls_reloc = 1; | |
| 5909 | if (h != NULL) | |
| 5910 | { | |
| 5911 | struct ppc_link_hash_entry *eh; | |
| 5912 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5913 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5914 | } |
| 5915 | else | |
| 5916 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5917 | rel->r_addend, tls_type)) | |
| 5918 | return FALSE; | |
| 5919 | ||
| 7c8fe5c4 AM |
5920 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5921 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5922 | { |
| 3a71aa26 AM |
5923 | bfd_size_type amt; |
| 5924 | ||
| e7b938ca | 5925 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5926 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5927 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5928 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5929 | return FALSE; | |
| 5930 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5931 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5932 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5933 | return FALSE; |
| 7c8fe5c4 AM |
5934 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5935 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5936 | } |
| 5937 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5938 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5939 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5940 | |
| 5941 | /* Mark the second slot of a GD or LD entry. | |
| 5942 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5943 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5944 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5945 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5946 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5947 | goto dodyn; |
| 5948 | ||
| 5949 | case R_PPC64_TPREL16: | |
| 5950 | case R_PPC64_TPREL16_LO: | |
| 5951 | case R_PPC64_TPREL16_HI: | |
| 5952 | case R_PPC64_TPREL16_HA: | |
| 5953 | case R_PPC64_TPREL16_DS: | |
| 5954 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5955 | case R_PPC64_TPREL16_HIGH: |
| 5956 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5957 | case R_PPC64_TPREL16_HIGHER: |
| 5958 | case R_PPC64_TPREL16_HIGHERA: | |
| 5959 | case R_PPC64_TPREL16_HIGHEST: | |
| 5960 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5961 | if (bfd_link_dll (info)) |
| 5962 | info->flags |= DF_STATIC_TLS; | |
| 5963 | goto dodyn; | |
| 5d1634d7 | 5964 | |
| e86ce104 | 5965 | case R_PPC64_ADDR64: |
| b9399fcf | 5966 | if (is_opd |
| 1e2f5b6e | 5967 | && rel + 1 < rel_end |
| 4ce794b7 | 5968 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5969 | { |
| 8387904d | 5970 | if (h != NULL) |
| 8c5b4e52 | 5971 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 1e2f5b6e | 5972 | } |
| e86ce104 AM |
5973 | /* Fall through. */ |
| 5974 | ||
| 65f38f15 AM |
5975 | case R_PPC64_ADDR16: |
| 5976 | case R_PPC64_ADDR16_DS: | |
| 5977 | case R_PPC64_ADDR16_HA: | |
| 5978 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5979 | case R_PPC64_ADDR16_HIGH: |
| 5980 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5981 | case R_PPC64_ADDR16_HIGHER: |
| 5982 | case R_PPC64_ADDR16_HIGHERA: | |
| 5983 | case R_PPC64_ADDR16_HIGHEST: | |
| 5984 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5985 | case R_PPC64_ADDR16_LO: | |
| 5986 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5987 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5988 | && rel->r_addend == 0) |
| 5989 | { | |
| 5990 | /* We may need a .plt entry if this reloc refers to a | |
| 5991 | function in a shared lib. */ | |
| 5992 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5993 | return FALSE; | |
| 5994 | h->pointer_equality_needed = 1; | |
| 5995 | } | |
| 5996 | /* Fall through. */ | |
| 5997 | ||
| 5998 | case R_PPC64_REL30: | |
| 5999 | case R_PPC64_REL32: | |
| 6000 | case R_PPC64_REL64: | |
| 65f38f15 | 6001 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
6002 | case R_PPC64_UADDR16: |
| 6003 | case R_PPC64_UADDR32: | |
| 6004 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 6005 | case R_PPC64_TOC: |
| 0e1862bb | 6006 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 6007 | /* We may need a copy reloc. */ |
| f5385ebf | 6008 | h->non_got_ref = 1; |
| 81848ca0 | 6009 | |
| 41bd81ab | 6010 | /* Don't propagate .opd relocs. */ |
| b9399fcf | 6011 | if (NO_OPD_RELOCS && is_opd) |
| e86ce104 | 6012 | break; |
| e86ce104 | 6013 | |
| 65f38f15 AM |
6014 | /* If we are creating a shared library, and this is a reloc |
| 6015 | against a global symbol, or a non PC relative reloc | |
| 6016 | against a local symbol, then we need to copy the reloc | |
| 6017 | into the shared library. However, if we are linking with | |
| 6018 | -Bsymbolic, we do not need to copy a reloc against a | |
| 6019 | global symbol which is defined in an object we are | |
| 6020 | including in the link (i.e., DEF_REGULAR is set). At | |
| 6021 | this point we have not seen all the input files, so it is | |
| 6022 | possible that DEF_REGULAR is not set now but will be set | |
| 6023 | later (it is never cleared). In case of a weak definition, | |
| 6024 | DEF_REGULAR may be cleared later by a strong definition in | |
| 6025 | a shared library. We account for that possibility below by | |
| f4656909 | 6026 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
6027 | table entry. A similar situation occurs when creating |
| 6028 | shared libraries and symbol visibility changes render the | |
| 6029 | symbol local. | |
| 6030 | ||
| 6031 | If on the other hand, we are creating an executable, we | |
| 6032 | may need to keep relocations for symbols satisfied by a | |
| 6033 | dynamic library if we manage to avoid copy relocs for the | |
| 6034 | symbol. */ | |
| 411e1bfb | 6035 | dodyn: |
| 0e1862bb | 6036 | if ((bfd_link_pic (info) |
| 1d483afe | 6037 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 6038 | || (h != NULL |
| 198f1157 | 6039 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 6040 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 6041 | || !h->def_regular)))) |
| f4656909 | 6042 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 6043 | && !bfd_link_pic (info) |
| 65f38f15 AM |
6044 | && h != NULL |
| 6045 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 6046 | || !h->def_regular)) |
| 0e1862bb | 6047 | || (!bfd_link_pic (info) |
| 25f23106 | 6048 | && ifunc != NULL)) |
| 5bd4f169 | 6049 | { |
| 65f38f15 AM |
6050 | /* We must copy these reloc types into the output file. |
| 6051 | Create a reloc section in dynobj and make room for | |
| 6052 | this reloc. */ | |
| 5bd4f169 AM |
6053 | if (sreloc == NULL) |
| 6054 | { | |
| 83bac4b0 NC |
6055 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 6056 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 6057 | |
| 5bd4f169 | 6058 | if (sreloc == NULL) |
| 83bac4b0 | 6059 | return FALSE; |
| 5bd4f169 AM |
6060 | } |
| 6061 | ||
| 65f38f15 AM |
6062 | /* If this is a global symbol, we count the number of |
| 6063 | relocations we need for this symbol. */ | |
| 6064 | if (h != NULL) | |
| 6065 | { | |
| 19e08130 AM |
6066 | struct elf_dyn_relocs *p; |
| 6067 | struct elf_dyn_relocs **head; | |
| 6068 | ||
| ec338859 | 6069 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
6070 | p = *head; |
| 6071 | if (p == NULL || p->sec != sec) | |
| 6072 | { | |
| 6073 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6074 | if (p == NULL) | |
| 6075 | return FALSE; | |
| 6076 | p->next = *head; | |
| 6077 | *head = p; | |
| 6078 | p->sec = sec; | |
| 6079 | p->count = 0; | |
| 6080 | p->pc_count = 0; | |
| 6081 | } | |
| 6082 | p->count += 1; | |
| 6083 | if (!must_be_dyn_reloc (info, r_type)) | |
| 6084 | p->pc_count += 1; | |
| 65f38f15 AM |
6085 | } |
| 6086 | else | |
| 6087 | { | |
| ec338859 AM |
6088 | /* Track dynamic relocs needed for local syms too. |
| 6089 | We really need local syms available to do this | |
| 6090 | easily. Oh well. */ | |
| 19e08130 AM |
6091 | struct ppc_dyn_relocs *p; |
| 6092 | struct ppc_dyn_relocs **head; | |
| 6093 | bfd_boolean is_ifunc; | |
| ec338859 | 6094 | asection *s; |
| 6edfbbad | 6095 | void *vpp; |
| 87d72d41 | 6096 | Elf_Internal_Sym *isym; |
| 6edfbbad | 6097 | |
| 87d72d41 AM |
6098 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 6099 | abfd, r_symndx); | |
| 6100 | if (isym == NULL) | |
| b34976b6 | 6101 | return FALSE; |
| ec338859 | 6102 | |
| 87d72d41 AM |
6103 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 6104 | if (s == NULL) | |
| 6105 | s = sec; | |
| 6106 | ||
| 6edfbbad | 6107 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
6108 | head = (struct ppc_dyn_relocs **) vpp; |
| 6109 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 6110 | p = *head; | |
| 6111 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 6112 | p = p->next; | |
| 6113 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 6114 | { | |
| 6115 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6116 | if (p == NULL) | |
| 6117 | return FALSE; | |
| 6118 | p->next = *head; | |
| 6119 | *head = p; | |
| 6120 | p->sec = sec; | |
| 6121 | p->ifunc = is_ifunc; | |
| 6122 | p->count = 0; | |
| 6123 | } | |
| 6124 | p->count += 1; | |
| ec338859 | 6125 | } |
| 65f38f15 | 6126 | } |
| 5bd4f169 | 6127 | break; |
| 65f38f15 AM |
6128 | |
| 6129 | default: | |
| 96e0dda4 | 6130 | break; |
| 5bd4f169 AM |
6131 | } |
| 6132 | } | |
| 6133 | ||
| b34976b6 | 6134 | return TRUE; |
| 5bd4f169 AM |
6135 | } |
| 6136 | ||
| ee67d69a AM |
6137 | /* Merge backend specific data from an object file to the output |
| 6138 | object file when linking. */ | |
| 6139 | ||
| 6140 | static bfd_boolean | |
| 50e03d47 | 6141 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6142 | { |
| 50e03d47 | 6143 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6144 | unsigned long iflags, oflags; |
| 6145 | ||
| 6146 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6147 | return TRUE; | |
| 6148 | ||
| 6149 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6150 | return TRUE; | |
| 6151 | ||
| 50e03d47 | 6152 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6153 | return FALSE; |
| 6154 | ||
| 6155 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6156 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6157 | ||
| f6c7c3e8 | 6158 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6159 | { |
| 4eca0228 | 6160 | _bfd_error_handler |
| 695344c0 | 6161 | /* xgettext:c-format */ |
| 871b3ab2 | 6162 | (_("%pB uses unknown e_flags 0x%lx"), ibfd, iflags); |
| ee67d69a AM |
6163 | bfd_set_error (bfd_error_bad_value); |
| 6164 | return FALSE; | |
| 6165 | } | |
| f6c7c3e8 | 6166 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6167 | { |
| 4eca0228 | 6168 | _bfd_error_handler |
| 695344c0 | 6169 | /* xgettext:c-format */ |
| 871b3ab2 | 6170 | (_("%pB: ABI version %ld is not compatible with ABI version %ld output"), |
| ee67d69a AM |
6171 | ibfd, iflags, oflags); |
| 6172 | bfd_set_error (bfd_error_bad_value); | |
| 6173 | return FALSE; | |
| 6174 | } | |
| 6175 | ||
| 50e03d47 | 6176 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6177 | |
| ee67d69a | 6178 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6179 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6180 | |
| 6181 | return TRUE; | |
| 6182 | } | |
| 6183 | ||
| 6184 | static bfd_boolean | |
| 6185 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6186 | { | |
| 6187 | /* Print normal ELF private data. */ | |
| 6188 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6189 | ||
| 6190 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6191 | { | |
| 6192 | FILE *file = ptr; | |
| 6193 | ||
| ee67d69a AM |
6194 | fprintf (file, _("private flags = 0x%lx:"), |
| 6195 | elf_elfheader (abfd)->e_flags); | |
| 6196 | ||
| 6197 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6198 | fprintf (file, _(" [abiv%ld]"), | |
| 6199 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6200 | fputc ('\n', file); | |
| 6201 | } | |
| 6202 | ||
| 6203 | return TRUE; | |
| 6204 | } | |
| 6205 | ||
| 8387904d | 6206 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6207 | of the code entry point, and its section, which must be in the same |
| 6208 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6209 | |
| 6210 | static bfd_vma | |
| 6211 | opd_entry_value (asection *opd_sec, | |
| 6212 | bfd_vma offset, | |
| 6213 | asection **code_sec, | |
| aef36ac1 AM |
6214 | bfd_vma *code_off, |
| 6215 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6216 | { |
| 6217 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6218 | Elf_Internal_Rela *relocs; |
| 8387904d | 6219 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6220 | bfd_vma val; |
| 8387904d | 6221 | |
| 9f296da3 AM |
6222 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6223 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6224 | if (opd_sec->reloc_count == 0) |
| 6225 | { | |
| 729eabd5 | 6226 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6227 | |
| 729eabd5 AM |
6228 | if (contents == NULL) |
| 6229 | { | |
| 6230 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6231 | return (bfd_vma) -1; | |
| 6232 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6233 | } | |
| ee1e4ede | 6234 | |
| dbb3fbbb | 6235 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6236 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6237 | return (bfd_vma) -1; |
| 6238 | ||
| 729eabd5 | 6239 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6240 | if (code_sec != NULL) |
| 6241 | { | |
| 6242 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6243 | |
| aef36ac1 | 6244 | if (in_code_sec) |
| 4b85d634 | 6245 | { |
| aef36ac1 AM |
6246 | sec = *code_sec; |
| 6247 | if (sec->vma <= val | |
| 6248 | && val < sec->vma + sec->size) | |
| 6249 | likely = sec; | |
| 6250 | else | |
| 6251 | val = -1; | |
| 6252 | } | |
| 6253 | else | |
| 6254 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6255 | if (sec->vma <= val | |
| 6256 | && (sec->flags & SEC_LOAD) != 0 | |
| 6257 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6258 | likely = sec; | |
| 6259 | if (likely != NULL) | |
| 6260 | { | |
| 6261 | *code_sec = likely; | |
| 6262 | if (code_off != NULL) | |
| 6263 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6264 | } |
| 6265 | } | |
| aef36ac1 | 6266 | return val; |
| 4b85d634 AM |
6267 | } |
| 6268 | ||
| 0c8d6e5c | 6269 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6270 | |
| 729eabd5 | 6271 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6272 | if (relocs == NULL) |
| 6273 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6274 | /* PR 17512: file: df8e1fd6. */ |
| 6275 | if (relocs == NULL) | |
| 6276 | return (bfd_vma) -1; | |
| 645ea6a9 | 6277 | |
| 8387904d | 6278 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6279 | lo = relocs; |
| 8387904d | 6280 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6281 | val = (bfd_vma) -1; |
| 8387904d AM |
6282 | while (lo < hi) |
| 6283 | { | |
| 6284 | look = lo + (hi - lo) / 2; | |
| 6285 | if (look->r_offset < offset) | |
| 6286 | lo = look + 1; | |
| 6287 | else if (look->r_offset > offset) | |
| 6288 | hi = look; | |
| 6289 | else | |
| 6290 | { | |
| 0ffa91dd NC |
6291 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6292 | ||
| 8387904d AM |
6293 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6294 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6295 | { | |
| 6296 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6297 | asection *sec = NULL; |
| 8387904d | 6298 | |
| b53dfeb2 AM |
6299 | if (symndx >= symtab_hdr->sh_info |
| 6300 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6301 | { |
| 6302 | struct elf_link_hash_entry **sym_hashes; | |
| 6303 | struct elf_link_hash_entry *rh; | |
| 6304 | ||
| 6305 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6306 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6307 | if (rh != NULL) |
| 6308 | { | |
| 6309 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6310 | if (rh->root.type != bfd_link_hash_defined |
| 6311 | && rh->root.type != bfd_link_hash_defweak) | |
| 6312 | break; | |
| 6313 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6314 | { |
| bb854a36 AM |
6315 | val = rh->root.u.def.value; |
| 6316 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6317 | } |
| 6318 | } | |
| 6319 | } | |
| 6320 | ||
| 6321 | if (sec == NULL) | |
| 6322 | { | |
| 6323 | Elf_Internal_Sym *sym; | |
| 6324 | ||
| 6325 | if (symndx < symtab_hdr->sh_info) | |
| 6326 | { | |
| 6327 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6328 | if (sym == NULL) | |
| 6329 | { | |
| 6330 | size_t symcnt = symtab_hdr->sh_info; | |
| 6331 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6332 | symcnt, 0, | |
| 6333 | NULL, NULL, NULL); | |
| 6334 | if (sym == NULL) | |
| 6335 | break; | |
| 6336 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6337 | } | |
| 6338 | sym += symndx; | |
| 128205bb AM |
6339 | } |
| 6340 | else | |
| 6341 | { | |
| b53dfeb2 AM |
6342 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6343 | 1, symndx, | |
| 6344 | NULL, NULL, NULL); | |
| 128205bb AM |
6345 | if (sym == NULL) |
| 6346 | break; | |
| 128205bb | 6347 | } |
| b53dfeb2 AM |
6348 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6349 | if (sec == NULL) | |
| 6350 | break; | |
| 6351 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6352 | val = sym->st_value; | |
| 8387904d | 6353 | } |
| b53dfeb2 | 6354 | |
| 8387904d AM |
6355 | val += look->r_addend; |
| 6356 | if (code_off != NULL) | |
| 6357 | *code_off = val; | |
| 6358 | if (code_sec != NULL) | |
| aef36ac1 AM |
6359 | { |
| 6360 | if (in_code_sec && *code_sec != sec) | |
| 6361 | return -1; | |
| 6362 | else | |
| 6363 | *code_sec = sec; | |
| 6364 | } | |
| b53dfeb2 | 6365 | if (sec->output_section != NULL) |
| 8387904d | 6366 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6367 | } |
| 6368 | break; | |
| 6369 | } | |
| 6370 | } | |
| 645ea6a9 | 6371 | |
| 645ea6a9 | 6372 | return val; |
| 8387904d AM |
6373 | } |
| 6374 | ||
| aef36ac1 AM |
6375 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6376 | function size and set *CODE_OFF to the function's entry point, | |
| 6377 | otherwise return zero. */ | |
| 9f296da3 | 6378 | |
| aef36ac1 AM |
6379 | static bfd_size_type |
| 6380 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6381 | bfd_vma *code_off) | |
| 9f296da3 | 6382 | { |
| aef36ac1 AM |
6383 | bfd_size_type size; |
| 6384 | ||
| 6385 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6386 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6387 | return 0; | |
| 6388 | ||
| 6389 | size = 0; | |
| 6390 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6391 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6392 | ||
| 6393 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6394 | { |
| b07bca4e AM |
6395 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6396 | bfd_vma symval = sym->value; | |
| 6397 | ||
| 6398 | if (opd != NULL | |
| 6399 | && opd->adjust != NULL | |
| 6400 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6401 | { | |
| 6402 | /* opd_entry_value will use cached relocs that have been | |
| 6403 | adjusted, but with raw symbols. That means both local | |
| 6404 | and global symbols need adjusting. */ | |
| 6405 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6406 | if (adjust == -1) | |
| 6407 | return 0; | |
| 6408 | symval += adjust; | |
| 6409 | } | |
| 6410 | ||
| 6411 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6412 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6413 | return 0; | |
| 6414 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6415 | symbol. This size has nothing to do with the code size of the | |
| 6416 | function, which is what we're supposed to return, but the | |
| 6417 | code size isn't available without looking up the dot-sym. | |
| 6418 | However, doing that would be a waste of time particularly | |
| 6419 | since elf_find_function will look at the dot-sym anyway. | |
| 6420 | Now, elf_find_function will keep the largest size of any | |
| 6421 | function sym found at the code address of interest, so return | |
| 6422 | 1 here to avoid it incorrectly caching a larger function size | |
| 6423 | for a small function. This does mean we return the wrong | |
| 6424 | size for a new-ABI function of size 24, but all that does is | |
| 6425 | disable caching for such functions. */ | |
| 6426 | if (size == 24) | |
| 6427 | size = 1; | |
| 9f296da3 | 6428 | } |
| aef36ac1 AM |
6429 | else |
| 6430 | { | |
| 6431 | if (sym->section != sec) | |
| 6432 | return 0; | |
| 6433 | *code_off = sym->value; | |
| 6434 | } | |
| 6435 | if (size == 0) | |
| 6436 | size = 1; | |
| 6437 | return size; | |
| 9f296da3 AM |
6438 | } |
| 6439 | ||
| f378ab09 AM |
6440 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6441 | object with st_other localentry bits of zero, ie. its local entry | |
| 6442 | point coincides with its global entry point. */ | |
| 6443 | ||
| 6444 | static bfd_boolean | |
| 6445 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6446 | { | |
| 6447 | return (h != NULL | |
| 6448 | && h->type == STT_FUNC | |
| 6449 | && h->root.type == bfd_link_hash_defined | |
| 6450 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6451 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6452 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6453 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6454 | } | |
| 6455 | ||
| 854b41e7 AM |
6456 | /* Return true if symbol is defined in a regular object file. */ |
| 6457 | ||
| 6458 | static bfd_boolean | |
| 6459 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6460 | { | |
| 6461 | return ((h->root.type == bfd_link_hash_defined | |
| 6462 | || h->root.type == bfd_link_hash_defweak) | |
| 6463 | && h->root.u.def.section != NULL | |
| 6464 | && h->root.u.def.section->output_section != NULL); | |
| 6465 | } | |
| 6466 | ||
| b31867b6 AM |
6467 | /* If FDH is a function descriptor symbol, return the associated code |
| 6468 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6469 | ||
| 6470 | static struct ppc_link_hash_entry * | |
| 6471 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6472 | { | |
| 6473 | if (fdh->is_func_descriptor) | |
| 6474 | { | |
| 6475 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6476 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6477 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6478 | return fh; | |
| 6479 | } | |
| 6480 | return NULL; | |
| 6481 | } | |
| 6482 | ||
| 6483 | /* If FH is a function code entry symbol, return the associated | |
| 6484 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6485 | ||
| 6486 | static struct ppc_link_hash_entry * | |
| 6487 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6488 | { | |
| 6489 | if (fh->oh != NULL | |
| 6490 | && fh->oh->is_func_descriptor) | |
| 6491 | { | |
| 6492 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6493 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6494 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6495 | return fdh; | |
| 6496 | } | |
| 6497 | return NULL; | |
| 6498 | } | |
| 6499 | ||
| 8c5b4e52 AM |
6500 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6501 | ||
| 6502 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6503 | ||
| 6504 | static bfd_boolean | |
| 6505 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6506 | { | |
| 6507 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6508 | ||
| 6509 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6510 | { | |
| 6511 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6512 | htab->need_func_desc_adj = 0; | |
| 6513 | } | |
| 6514 | return bfd_elf_gc_sections (abfd, info); | |
| 6515 | } | |
| 6516 | ||
| 74f0fb50 AM |
6517 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6518 | ||
| 6519 | static void | |
| 6520 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6521 | { | |
| 6522 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6523 | struct bfd_sym_chain *sym; | |
| 6524 | ||
| 4dfe6ac6 NC |
6525 | if (htab == NULL) |
| 6526 | return; | |
| 6527 | ||
| 74f0fb50 AM |
6528 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6529 | { | |
| b31867b6 | 6530 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6531 | asection *sec; |
| 6532 | ||
| 6533 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6534 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6535 | if (eh == NULL) |
| 6536 | continue; | |
| 6537 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6538 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6539 | continue; | |
| 6540 | ||
| b31867b6 AM |
6541 | fh = defined_code_entry (eh); |
| 6542 | if (fh != NULL) | |
| 74f0fb50 | 6543 | { |
| b31867b6 | 6544 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6545 | sec->flags |= SEC_KEEP; |
| 6546 | } | |
| 6547 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6548 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6549 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6550 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6551 | sec->flags |= SEC_KEEP; |
| 6552 | ||
| 6553 | sec = eh->elf.root.u.def.section; | |
| 6554 | sec->flags |= SEC_KEEP; | |
| 6555 | } | |
| 6556 | } | |
| 6557 | ||
| 64d03ab5 AM |
6558 | /* Mark sections containing dynamically referenced symbols. When |
| 6559 | building shared libraries, we must assume that any visible symbol is | |
| 6560 | referenced. */ | |
| 6561 | ||
| 6562 | static bfd_boolean | |
| 6563 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6564 | { | |
| 6565 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6566 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6567 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6568 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6569 | |
| 64d03ab5 | 6570 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6571 | fdh = defined_func_desc (eh); |
| 6572 | if (fdh != NULL) | |
| 6573 | eh = fdh; | |
| 64d03ab5 AM |
6574 | |
| 6575 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6576 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 87e79a65 | 6577 | && ((eh->elf.ref_dynamic && !eh->elf.forced_local) |
| 1c9177d9 | 6578 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6579 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6580 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6581 | && (!bfd_link_executable (info) |
| e278ae05 | 6582 | || info->gc_keep_exported |
| b407645f AM |
6583 | || info->export_dynamic |
| 6584 | || (eh->elf.dynamic | |
| 6585 | && d != NULL | |
| 6586 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6587 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6588 | || !bfd_hide_sym_by_version (info->version_info, |
| 6589 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6590 | { |
| 6591 | asection *code_sec; | |
| b31867b6 | 6592 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6593 | |
| 6594 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6595 | ||
| 6596 | /* Function descriptor syms cause the associated | |
| 6597 | function code sym section to be marked. */ | |
| b31867b6 AM |
6598 | fh = defined_code_entry (eh); |
| 6599 | if (fh != NULL) | |
| 6600 | { | |
| 6601 | code_sec = fh->elf.root.u.def.section; | |
| 6602 | code_sec->flags |= SEC_KEEP; | |
| 6603 | } | |
| 64d03ab5 AM |
6604 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6605 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6606 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6607 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6608 | code_sec->flags |= SEC_KEEP; |
| 6609 | } | |
| 6610 | ||
| 6611 | return TRUE; | |
| 6612 | } | |
| 6613 | ||
| 5bd4f169 AM |
6614 | /* Return the section that should be marked against GC for a given |
| 6615 | relocation. */ | |
| 6616 | ||
| 6617 | static asection * | |
| 4ce794b7 | 6618 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6619 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6620 | Elf_Internal_Rela *rel, |
| 6621 | struct elf_link_hash_entry *h, | |
| 6622 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6623 | { |
| ccfa59ea AM |
6624 | asection *rsec; |
| 6625 | ||
| ccfa59ea AM |
6626 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6627 | function sections, as all functions are referenced in .opd. */ | |
| 6628 | rsec = NULL; | |
| 6629 | if (get_opd_info (sec) != NULL) | |
| 6630 | return rsec; | |
| 1e2f5b6e | 6631 | |
| 5bd4f169 AM |
6632 | if (h != NULL) |
| 6633 | { | |
| 04c9666a | 6634 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6635 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6636 | |
| 4ce794b7 | 6637 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6638 | switch (r_type) |
| 5bd4f169 AM |
6639 | { |
| 6640 | case R_PPC64_GNU_VTINHERIT: | |
| 6641 | case R_PPC64_GNU_VTENTRY: | |
| 6642 | break; | |
| 6643 | ||
| 6644 | default: | |
| 6645 | switch (h->root.type) | |
| 6646 | { | |
| 6647 | case bfd_link_hash_defined: | |
| 6648 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6649 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6650 | fdh = defined_func_desc (eh); |
| 6651 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6652 | { |
| 6653 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6654 | a call reloc. Mark the function descriptor too | |
| 6655 | against garbage collection. */ | |
| 6656 | fdh->elf.mark = 1; | |
| 60d67dc8 AM |
6657 | if (fdh->elf.is_weakalias) |
| 6658 | weakdef (&fdh->elf)->mark = 1; | |
| 8c5b4e52 AM |
6659 | eh = fdh; |
| 6660 | } | |
| 1e2f5b6e AM |
6661 | |
| 6662 | /* Function descriptor syms cause the associated | |
| 6663 | function code sym section to be marked. */ | |
| b31867b6 AM |
6664 | fh = defined_code_entry (eh); |
| 6665 | if (fh != NULL) | |
| ccfa59ea AM |
6666 | { |
| 6667 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6668 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6669 | |
| b31867b6 | 6670 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6671 | } |
| 8387904d AM |
6672 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6673 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6674 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6675 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6676 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6677 | else |
| 1e2f5b6e AM |
6678 | rsec = h->root.u.def.section; |
| 6679 | break; | |
| 5bd4f169 AM |
6680 | |
| 6681 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6682 | rsec = h->root.u.c.p->section; |
| 6683 | break; | |
| 5bd4f169 AM |
6684 | |
| 6685 | default: | |
| fb34365b | 6686 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6687 | } |
| 6688 | } | |
| 6689 | } | |
| 6690 | else | |
| 6691 | { | |
| 74f0fb50 | 6692 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6693 | |
| 6694 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6695 | opd = get_opd_info (rsec); |
| 6696 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6697 | { |
| 74f0fb50 | 6698 | rsec->gc_mark = 1; |
| ccfa59ea | 6699 | |
| 51aecdc5 | 6700 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6701 | } |
| 5bd4f169 AM |
6702 | } |
| 6703 | ||
| 1e2f5b6e | 6704 | return rsec; |
| 5bd4f169 AM |
6705 | } |
| 6706 | ||
| deb0e272 AM |
6707 | /* The maximum size of .sfpr. */ |
| 6708 | #define SFPR_MAX (218*4) | |
| 6709 | ||
| 6710 | struct sfpr_def_parms | |
| 6711 | { | |
| 699733f6 AM |
6712 | const char name[12]; |
| 6713 | unsigned char lo, hi; | |
| deb0e272 AM |
6714 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6715 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6716 | }; | |
| 6717 | ||
| a4b6fadd AM |
6718 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6719 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6720 | instead. */ | |
| deb0e272 | 6721 | |
| 4dfe6ac6 | 6722 | static bfd_boolean |
| a4b6fadd AM |
6723 | sfpr_define (struct bfd_link_info *info, |
| 6724 | const struct sfpr_def_parms *parm, | |
| 6725 | asection *stub_sec) | |
| deb0e272 AM |
6726 | { |
| 6727 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6728 | unsigned int i; | |
| 6729 | size_t len = strlen (parm->name); | |
| 6730 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6731 | char sym[16]; |
| deb0e272 | 6732 | |
| 4dfe6ac6 NC |
6733 | if (htab == NULL) |
| 6734 | return FALSE; | |
| 6735 | ||
| deb0e272 AM |
6736 | memcpy (sym, parm->name, len); |
| 6737 | sym[len + 2] = 0; | |
| 6738 | ||
| 6739 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6740 | { | |
| a4b6fadd | 6741 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6742 | |
| 6743 | sym[len + 0] = i / 10 + '0'; | |
| 6744 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6745 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6746 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6747 | if (stub_sec != NULL) |
| deb0e272 | 6748 | { |
| a4b6fadd AM |
6749 | if (h != NULL |
| 6750 | && h->elf.root.type == bfd_link_hash_defined | |
| 6751 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6752 | { | |
| 6753 | struct elf_link_hash_entry *s; | |
| 6754 | char buf[32]; | |
| 6755 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6756 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6757 | if (s == NULL) | |
| 6758 | return FALSE; | |
| 6759 | if (s->root.type == bfd_link_hash_new | |
| 6760 | || (s->root.type = bfd_link_hash_defined | |
| 6761 | && s->root.u.def.section == stub_sec)) | |
| 6762 | { | |
| 6763 | s->root.type = bfd_link_hash_defined; | |
| 6764 | s->root.u.def.section = stub_sec; | |
| 7dda8d3c | 6765 | s->root.u.def.value = (stub_sec->size - htab->sfpr->size |
| a4b6fadd AM |
6766 | + h->elf.root.u.def.value); |
| 6767 | s->ref_regular = 1; | |
| 6768 | s->def_regular = 1; | |
| 6769 | s->ref_regular_nonweak = 1; | |
| 6770 | s->forced_local = 1; | |
| 6771 | s->non_elf = 0; | |
| 6772 | s->root.linker_def = 1; | |
| 6773 | } | |
| 6774 | } | |
| 6775 | continue; | |
| 6776 | } | |
| 6777 | if (h != NULL) | |
| 6778 | { | |
| 6779 | h->save_res = 1; | |
| 6780 | if (!h->elf.def_regular) | |
| deb0e272 | 6781 | { |
| a4b6fadd AM |
6782 | h->elf.root.type = bfd_link_hash_defined; |
| 6783 | h->elf.root.u.def.section = htab->sfpr; | |
| 6784 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6785 | h->elf.type = STT_FUNC; | |
| 6786 | h->elf.def_regular = 1; | |
| b32547cd | 6787 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6788 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6789 | writing = TRUE; | |
| deb0e272 | 6790 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6791 | { |
| 6792 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6793 | if (htab->sfpr->contents == NULL) | |
| 6794 | return FALSE; | |
| 6795 | } | |
| deb0e272 AM |
6796 | } |
| 6797 | } | |
| 6798 | if (writing) | |
| 6799 | { | |
| 6800 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6801 | if (i != parm->hi) | |
| 6802 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6803 | else | |
| 6804 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6805 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6806 | } | |
| 6807 | } | |
| 6808 | ||
| 6809 | return TRUE; | |
| 6810 | } | |
| 6811 | ||
| 6812 | static bfd_byte * | |
| 6813 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6814 | { | |
| 6815 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6816 | return p + 4; | |
| 6817 | } | |
| 6818 | ||
| 6819 | static bfd_byte * | |
| 6820 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6821 | { | |
| 6822 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6823 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6824 | p = p + 4; |
| 6825 | bfd_put_32 (abfd, BLR, p); | |
| 6826 | return p + 4; | |
| 6827 | } | |
| 6828 | ||
| 6829 | static bfd_byte * | |
| 6830 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6831 | { | |
| 6832 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6833 | return p + 4; | |
| 6834 | } | |
| 6835 | ||
| 6836 | static bfd_byte * | |
| 6837 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6838 | { | |
| a078d95a | 6839 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6840 | p = p + 4; |
| 6841 | p = restgpr0 (abfd, p, r); | |
| 6842 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6843 | p = p + 4; | |
| 6844 | if (r == 29) | |
| 6845 | { | |
| 6846 | p = restgpr0 (abfd, p, 30); | |
| 6847 | p = restgpr0 (abfd, p, 31); | |
| 6848 | } | |
| 6849 | bfd_put_32 (abfd, BLR, p); | |
| 6850 | return p + 4; | |
| 6851 | } | |
| 6852 | ||
| 6853 | static bfd_byte * | |
| 6854 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6855 | { | |
| 6856 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6857 | return p + 4; | |
| 6858 | } | |
| 6859 | ||
| 6860 | static bfd_byte * | |
| 6861 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6862 | { | |
| 6863 | p = savegpr1 (abfd, p, r); | |
| 6864 | bfd_put_32 (abfd, BLR, p); | |
| 6865 | return p + 4; | |
| 6866 | } | |
| 6867 | ||
| 6868 | static bfd_byte * | |
| 6869 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6870 | { | |
| 6871 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6872 | return p + 4; | |
| 6873 | } | |
| 6874 | ||
| 6875 | static bfd_byte * | |
| 6876 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6877 | { | |
| 6878 | p = restgpr1 (abfd, p, r); | |
| 6879 | bfd_put_32 (abfd, BLR, p); | |
| 6880 | return p + 4; | |
| 6881 | } | |
| 6882 | ||
| 6883 | static bfd_byte * | |
| 6884 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6885 | { | |
| 6886 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6887 | return p + 4; | |
| 6888 | } | |
| 6889 | ||
| 6890 | static bfd_byte * | |
| 6891 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6892 | { | |
| 6893 | p = savefpr (abfd, p, r); | |
| a078d95a | 6894 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6895 | p = p + 4; |
| 6896 | bfd_put_32 (abfd, BLR, p); | |
| 6897 | return p + 4; | |
| 6898 | } | |
| 6899 | ||
| 6900 | static bfd_byte * | |
| 6901 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6902 | { | |
| 6903 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6904 | return p + 4; | |
| 6905 | } | |
| 6906 | ||
| 6907 | static bfd_byte * | |
| 6908 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6909 | { | |
| a078d95a | 6910 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6911 | p = p + 4; |
| 6912 | p = restfpr (abfd, p, r); | |
| 6913 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6914 | p = p + 4; | |
| 6915 | if (r == 29) | |
| 6916 | { | |
| 6917 | p = restfpr (abfd, p, 30); | |
| 6918 | p = restfpr (abfd, p, 31); | |
| 6919 | } | |
| 6920 | bfd_put_32 (abfd, BLR, p); | |
| 6921 | return p + 4; | |
| 6922 | } | |
| 6923 | ||
| 6924 | static bfd_byte * | |
| 6925 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6926 | { | |
| 6927 | p = savefpr (abfd, p, r); | |
| 6928 | bfd_put_32 (abfd, BLR, p); | |
| 6929 | return p + 4; | |
| 6930 | } | |
| 6931 | ||
| 6932 | static bfd_byte * | |
| 6933 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6934 | { | |
| 6935 | p = restfpr (abfd, p, r); | |
| 6936 | bfd_put_32 (abfd, BLR, p); | |
| 6937 | return p + 4; | |
| 6938 | } | |
| 6939 | ||
| 6940 | static bfd_byte * | |
| 6941 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6942 | { | |
| 6943 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6944 | p = p + 4; | |
| 6945 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6946 | return p + 4; | |
| 6947 | } | |
| 6948 | ||
| 6949 | static bfd_byte * | |
| 6950 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6951 | { | |
| 6952 | p = savevr (abfd, p, r); | |
| 6953 | bfd_put_32 (abfd, BLR, p); | |
| 6954 | return p + 4; | |
| 6955 | } | |
| 6956 | ||
| 6957 | static bfd_byte * | |
| 6958 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6959 | { | |
| 6960 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6961 | p = p + 4; | |
| 6962 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6963 | return p + 4; | |
| 6964 | } | |
| 6965 | ||
| 6966 | static bfd_byte * | |
| 6967 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6968 | { | |
| 6969 | p = restvr (abfd, p, r); | |
| 6970 | bfd_put_32 (abfd, BLR, p); | |
| 6971 | return p + 4; | |
| 6972 | } | |
| 6973 | ||
| e86ce104 AM |
6974 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6975 | information on function code symbol entries to their corresponding | |
| 6976 | function descriptor symbol entries. */ | |
| deb0e272 | 6977 | |
| b34976b6 | 6978 | static bfd_boolean |
| 4ce794b7 | 6979 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6980 | { |
| e86ce104 | 6981 | struct bfd_link_info *info; |
| 65f38f15 | 6982 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6983 | struct ppc_link_hash_entry *fh; |
| 6984 | struct ppc_link_hash_entry *fdh; | |
| 6985 | bfd_boolean force_local; | |
| 5bd4f169 | 6986 | |
| 50bc7936 AM |
6987 | fh = (struct ppc_link_hash_entry *) h; |
| 6988 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6989 | return TRUE; |
| e86ce104 | 6990 | |
| 8c5b4e52 AM |
6991 | if (!fh->is_func) |
| 6992 | return TRUE; | |
| 6993 | ||
| 6994 | if (fh->elf.root.root.string[0] != '.' | |
| 6995 | || fh->elf.root.root.string[1] == '\0') | |
| 6996 | return TRUE; | |
| 6997 | ||
| 4ce794b7 | 6998 | info = inf; |
| 65f38f15 | 6999 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
7000 | if (htab == NULL) |
| 7001 | return FALSE; | |
| 5bd4f169 | 7002 | |
| 8c5b4e52 AM |
7003 | /* Find the corresponding function descriptor symbol. */ |
| 7004 | fdh = lookup_fdh (fh, htab); | |
| 7005 | ||
| c09bdfe5 AM |
7006 | /* Resolve undefined references to dot-symbols as the value |
| 7007 | in the function descriptor, if we have one in a regular object. | |
| 7008 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 7009 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
7010 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 7011 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 7012 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 7013 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
7014 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 7015 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 7016 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 7017 | &fh->elf.root.u.def.section, |
| aef36ac1 | 7018 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 7019 | { |
| b31867b6 | 7020 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 7021 | fh->elf.forced_local = 1; |
| b31867b6 AM |
7022 | fh->elf.def_regular = fdh->elf.def_regular; |
| 7023 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
7024 | } |
| 7025 | ||
| 8c5b4e52 AM |
7026 | if (!fh->elf.dynamic) |
| 7027 | { | |
| 7028 | struct plt_entry *ent; | |
| 5bd4f169 | 7029 | |
| 8c5b4e52 AM |
7030 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 7031 | if (ent->plt.refcount > 0) | |
| 7032 | break; | |
| 7033 | if (ent == NULL) | |
| 7034 | return TRUE; | |
| 7035 | } | |
| 5bd4f169 | 7036 | |
| 8c5b4e52 | 7037 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 7038 | if (fdh == NULL |
| 0e1862bb | 7039 | && !bfd_link_executable (info) |
| 50bc7936 AM |
7040 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 7041 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 7042 | { | |
| 908b32fc | 7043 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
7044 | if (fdh == NULL) |
| 7045 | return FALSE; | |
| 50bc7936 | 7046 | } |
| 648cca2c | 7047 | |
| 8c5b4e52 | 7048 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
7049 | if (fdh != NULL |
| 7050 | && fdh->fake | |
| 8c5b4e52 AM |
7051 | && (fh->elf.root.type == bfd_link_hash_defined |
| 7052 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 7053 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 7054 | |
| 8c5b4e52 AM |
7055 | /* Transfer dynamic linking information to the function descriptor. */ |
| 7056 | if (fdh != NULL) | |
| 7057 | { | |
| f5385ebf AM |
7058 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 7059 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 7060 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 7061 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
7062 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 7063 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 7064 | || fh->elf.type == STT_FUNC | |
| 7065 | || fh->elf.type == STT_GNU_IFUNC); | |
| 7066 | move_plt_plist (fh, fdh); | |
| 7067 | ||
| 7068 | if (!fdh->elf.forced_local | |
| 7069 | && fh->elf.dynindx != -1) | |
| 7070 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 7071 | return FALSE; | |
| e86ce104 AM |
7072 | } |
| 7073 | ||
| 50bc7936 AM |
7074 | /* Now that the info is on the function descriptor, clear the |
| 7075 | function code sym info. Any function code syms for which we | |
| 7076 | don't have a definition in a regular file, we force local. | |
| 7077 | This prevents a shared library from exporting syms that have | |
| 7078 | been imported from another library. Function code syms that | |
| 7079 | are really in the library we must leave global to prevent the | |
| 7080 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7081 | force_local = (!fh->elf.def_regular |
| 7082 | || fdh == NULL | |
| 7083 | || !fdh->elf.def_regular | |
| 7084 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7085 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7086 | ||
| b34976b6 | 7087 | return TRUE; |
| e86ce104 | 7088 | } |
| 40b8271b | 7089 | |
| a4b6fadd AM |
7090 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7091 | { | |
| 7092 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7093 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7094 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7095 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7096 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7097 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7098 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7099 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7100 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7101 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7102 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7103 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7104 | }; | |
| 7105 | ||
| e86ce104 | 7106 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7107 | this hook to a) provide some gcc support functions, and b) transfer |
| 7108 | dynamic linking information gathered so far on function code symbol | |
| 7109 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7110 | |
| b34976b6 | 7111 | static bfd_boolean |
| 4ce794b7 AM |
7112 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7113 | struct bfd_link_info *info) | |
| e86ce104 AM |
7114 | { |
| 7115 | struct ppc_link_hash_table *htab; | |
| 7116 | ||
| 7117 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7118 | if (htab == NULL) |
| 7119 | return FALSE; | |
| 7120 | ||
| b32547cd AM |
7121 | /* Provide any missing _save* and _rest* functions. */ |
| 7122 | if (htab->sfpr != NULL) | |
| 7123 | { | |
| 7124 | unsigned int i; | |
| 7125 | ||
| 7126 | htab->sfpr->size = 0; | |
| 7127 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7128 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7129 | return FALSE; | |
| 7130 | if (htab->sfpr->size == 0) | |
| 7131 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7132 | } | |
| 7133 | ||
| 7134 | if (bfd_link_relocatable (info)) | |
| 7135 | return TRUE; | |
| 7136 | ||
| 7137 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7138 | { |
| 7139 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7140 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7141 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7142 | if (!htab->elf.hgot->def_regular |
| 7143 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7144 | { | |
| 7145 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7146 | htab->elf.hgot->root.u.def.value = 0; | |
| 7147 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7148 | htab->elf.hgot->def_regular = 1; | |
| 7149 | htab->elf.hgot->root.linker_def = 1; | |
| 7150 | } | |
| dba6fa9b | 7151 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7152 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7153 | | STV_HIDDEN); | |
| 7154 | } | |
| c66bb0ee | 7155 | |
| 8c5b4e52 AM |
7156 | if (htab->need_func_desc_adj) |
| 7157 | { | |
| 7158 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7159 | htab->need_func_desc_adj = 0; | |
| 7160 | } | |
| 805fc799 | 7161 | |
| b34976b6 | 7162 | return TRUE; |
| e86ce104 AM |
7163 | } |
| 7164 | ||
| 98bbb1b8 | 7165 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| a345bc8d | 7166 | |
| 98bbb1b8 | 7167 | static asection * |
| a345bc8d AM |
7168 | readonly_dynrelocs (struct elf_link_hash_entry *h) |
| 7169 | { | |
| 7170 | struct ppc_link_hash_entry *eh; | |
| 7171 | struct elf_dyn_relocs *p; | |
| 7172 | ||
| 7173 | eh = (struct ppc_link_hash_entry *) h; | |
| 7174 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7175 | { | |
| 7176 | asection *s = p->sec->output_section; | |
| 7177 | ||
| 7178 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 98bbb1b8 | 7179 | return p->sec; |
| a345bc8d | 7180 | } |
| 98bbb1b8 | 7181 | return NULL; |
| a345bc8d AM |
7182 | } |
| 7183 | ||
| d311bc8b | 7184 | /* Return true if we have dynamic relocs against H or any of its weak |
| ab2477e1 AM |
7185 | aliases, that apply to read-only sections. Cannot be used after |
| 7186 | size_dynamic_sections. */ | |
| d311bc8b AM |
7187 | |
| 7188 | static bfd_boolean | |
| 7189 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7190 | { | |
| 7191 | struct ppc_link_hash_entry *eh; | |
| 7192 | ||
| 7193 | eh = (struct ppc_link_hash_entry *) h; | |
| 7194 | do | |
| 7195 | { | |
| 7196 | if (readonly_dynrelocs (&eh->elf)) | |
| 7197 | return TRUE; | |
| ab2477e1 | 7198 | eh = (struct ppc_link_hash_entry *) eh->elf.u.alias; |
| d311bc8b AM |
7199 | } while (eh != NULL && &eh->elf != h); |
| 7200 | ||
| 7201 | return FALSE; | |
| 7202 | } | |
| 8a2058b5 | 7203 | |
| 8a9e8e72 AM |
7204 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7205 | ||
| 7206 | static bfd_boolean | |
| 7207 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7208 | { | |
| 7209 | struct elf_dyn_relocs *p; | |
| 7210 | ||
| 7211 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7212 | if (p->pc_count != 0) | |
| 7213 | return TRUE; | |
| 7214 | return FALSE; | |
| 7215 | } | |
| 7216 | ||
| 8a2058b5 AM |
7217 | /* Return true if a global entry stub will be created for H. Valid |
| 7218 | for ELFv2 before plt entries have been allocated. */ | |
| 7219 | ||
| 7220 | static bfd_boolean | |
| 7221 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7222 | { | |
| 7223 | struct plt_entry *pent; | |
| 7224 | ||
| 7225 | if (!h->pointer_equality_needed | |
| 7226 | || h->def_regular) | |
| 7227 | return FALSE; | |
| 7228 | ||
| 7229 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7230 | if (pent->plt.refcount > 0 | |
| 7231 | && pent->addend == 0) | |
| 7232 | return TRUE; | |
| 7233 | ||
| 7234 | return FALSE; | |
| 7235 | } | |
| 7236 | ||
| e86ce104 AM |
7237 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7238 | regular object. The current definition is in some section of the | |
| 7239 | dynamic object, but we're not including those sections. We have to | |
| 7240 | change the definition to something the rest of the link can | |
| 7241 | understand. */ | |
| 7242 | ||
| b34976b6 | 7243 | static bfd_boolean |
| 4ce794b7 AM |
7244 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7245 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7246 | { |
| 7247 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7248 | asection *s, *srel; |
| e86ce104 AM |
7249 | |
| 7250 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7251 | if (htab == NULL) |
| 7252 | return FALSE; | |
| e86ce104 AM |
7253 | |
| 7254 | /* Deal with function syms. */ | |
| 7255 | if (h->type == STT_FUNC | |
| e054468f | 7256 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7257 | || h->needs_plt) |
| e86ce104 | 7258 | { |
| 529fe20e AM |
7259 | bfd_boolean local = (((struct ppc_link_hash_entry *) h)->save_res |
| 7260 | || SYMBOL_CALLS_LOCAL (info, h) | |
| 7261 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 7262 | /* Discard dyn_relocs when non-pic if we've decided that a | |
| 7263 | function symbol is local and not an ifunc. We keep dynamic | |
| 7264 | relocs for ifuncs when local rather than always emitting a | |
| 7265 | plt call stub for them and defining the symbol on the call | |
| 7266 | stub. We can't do that for ELFv1 anyway (a function symbol | |
| 7267 | is defined on a descriptor, not code) and it can be faster at | |
| 7268 | run-time due to not needing to bounce through a stub. The | |
| 7269 | dyn_relocs for ifuncs will be applied even in a static | |
| 7270 | executable. */ | |
| 7271 | if (!bfd_link_pic (info) | |
| 7272 | && h->type != STT_GNU_IFUNC | |
| 7273 | && local) | |
| 7274 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 7275 | ||
| e86ce104 AM |
7276 | /* Clear procedure linkage table information for any symbol that |
| 7277 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7278 | struct plt_entry *ent; |
| 7279 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7280 | if (ent->plt.refcount > 0) | |
| 7281 | break; | |
| 8387904d | 7282 | if (ent == NULL |
| 2d7ad24e AM |
7283 | || (h->type != STT_GNU_IFUNC |
| 7284 | && local | |
| 3e04d765 AM |
7285 | && (htab->can_convert_all_inline_plt |
| 7286 | || (((struct ppc_link_hash_entry *) h)->tls_mask | |
| 7287 | & (TLS_TLS | PLT_KEEP)) != PLT_KEEP))) | |
| 40b8271b | 7288 | { |
| 411e1bfb | 7289 | h->plt.plist = NULL; |
| f5385ebf | 7290 | h->needs_plt = 0; |
| d1eca1e4 | 7291 | h->pointer_equality_needed = 0; |
| 40b8271b | 7292 | } |
| 8a2058b5 | 7293 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7294 | { |
| d1eca1e4 AM |
7295 | /* Taking a function's address in a read/write section |
| 7296 | doesn't require us to define the function symbol in the | |
| 7297 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7298 | be used instead. The reason we prefer a few more dynamic |
| 7299 | relocs is that calling via a global entry stub costs a | |
| 7300 | few more instructions, and pointer_equality_needed causes | |
| 7301 | extra work in ld.so when resolving these symbols. */ | |
| 529fe20e | 7302 | if (global_entry_stub (h)) |
| d1eca1e4 | 7303 | { |
| ab2477e1 | 7304 | if (!readonly_dynrelocs (h)) |
| 529fe20e AM |
7305 | { |
| 7306 | h->pointer_equality_needed = 0; | |
| 04383fd1 AM |
7307 | /* If we haven't seen a branch reloc and the symbol |
| 7308 | isn't an ifunc then we don't need a plt entry. */ | |
| 529fe20e AM |
7309 | if (!h->needs_plt) |
| 7310 | h->plt.plist = NULL; | |
| 7311 | } | |
| 7312 | else if (!bfd_link_pic (info)) | |
| 7313 | /* We are going to be defining the function symbol on the | |
| 7314 | plt stub, so no dyn_relocs needed when non-pic. */ | |
| 7315 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| d1eca1e4 AM |
7316 | } |
| 7317 | ||
| 3988aed5 AM |
7318 | /* ELFv2 function symbols can't have copy relocs. */ |
| 7319 | return TRUE; | |
| 7320 | } | |
| 7321 | else if (!h->needs_plt | |
| ab2477e1 | 7322 | && !readonly_dynrelocs (h)) |
| 3988aed5 | 7323 | { |
| 04383fd1 AM |
7324 | /* If we haven't seen a branch reloc and the symbol isn't an |
| 7325 | ifunc then we don't need a plt entry. */ | |
| 3988aed5 AM |
7326 | h->plt.plist = NULL; |
| 7327 | h->pointer_equality_needed = 0; | |
| a345bc8d AM |
7328 | return TRUE; |
| 7329 | } | |
| 5bd4f169 | 7330 | } |
| bbd7ec4a | 7331 | else |
| 411e1bfb | 7332 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7333 | |
| 7334 | /* If this is a weak symbol, and there is a real definition, the | |
| 7335 | processor independent code will have arranged for us to see the | |
| 7336 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7337 | if (h->is_weakalias) |
| 5bd4f169 | 7338 | { |
| 60d67dc8 AM |
7339 | struct elf_link_hash_entry *def = weakdef (h); |
| 7340 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7341 | h->root.u.def.section = def->root.u.def.section; | |
| 7342 | h->root.u.def.value = def->root.u.def.value; | |
| 4a7e5234 AM |
7343 | if (def->root.u.def.section == htab->elf.sdynbss |
| 7344 | || def->root.u.def.section == htab->elf.sdynrelro) | |
| 7345 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| b34976b6 | 7346 | return TRUE; |
| 5bd4f169 AM |
7347 | } |
| 7348 | ||
| 5bd4f169 AM |
7349 | /* If we are creating a shared library, we must presume that the |
| 7350 | only references to the symbol are via the global offset table. | |
| 7351 | For such cases we need not do anything here; the relocations will | |
| 7352 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7353 | if (bfd_link_pic (info)) |
| b34976b6 | 7354 | return TRUE; |
| 5bd4f169 | 7355 | |
| 65f38f15 AM |
7356 | /* If there are no references to this symbol that do not use the |
| 7357 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7358 | if (!h->non_got_ref) |
| b34976b6 | 7359 | return TRUE; |
| 65f38f15 | 7360 | |
| b186458a | 7361 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7362 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7363 | |
| d93d1c80 AM |
7364 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7365 | || info->nocopyreloc | |
| a127494f | 7366 | |
| dce2246a | 7367 | /* If we don't find any dynamic relocs in read-only sections, then |
| d93d1c80 | 7368 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| d311bc8b | 7369 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7370 | |
| d93d1c80 AM |
7371 | /* Protected variables do not work with .dynbss. The copy in |
| 7372 | .dynbss won't be used by the shared library with the protected | |
| 7373 | definition for the variable. Text relocations are preferable | |
| 7374 | to an incorrect program. */ | |
| 7375 | || h->protected_def) | |
| 529fe20e | 7376 | return TRUE; |
| a127494f | 7377 | |
| 5d35169e | 7378 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7379 | { |
| 7380 | /* We should never get here, but unfortunately there are versions | |
| 7381 | of gcc out there that improperly (for this ABI) put initialized | |
| 7382 | function pointers, vtable refs and suchlike in read-only | |
| 7383 | sections. Allow them to proceed, but warn that this might | |
| 7384 | break at runtime. */ | |
| 25f53a85 | 7385 | info->callbacks->einfo |
| c1c8c1ef | 7386 | (_("%P: copy reloc against `%pT' requires lazy plt linking; " |
| 25f53a85 | 7387 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7388 | h->root.root.string); |
| 7389 | } | |
| 5d35169e AM |
7390 | |
| 7391 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7392 | is not a function. */ | |
| 7393 | ||
| 5bd4f169 AM |
7394 | /* We must allocate the symbol in our .dynbss section, which will |
| 7395 | become part of the .bss section of the executable. There will be | |
| 7396 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7397 | object will contain position independent code, so all references | |
| 7398 | from the dynamic object to this symbol will go through the global | |
| 7399 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7400 | determine the address it must put in the global offset table, so | |
| 7401 | both the dynamic object and the regular object will refer to the | |
| 7402 | same memory location for the variable. */ | |
| 5474d94f AM |
7403 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7404 | { | |
| 7405 | s = htab->elf.sdynrelro; | |
| 7406 | srel = htab->elf.sreldynrelro; | |
| 7407 | } | |
| 7408 | else | |
| 7409 | { | |
| 7410 | s = htab->elf.sdynbss; | |
| 7411 | srel = htab->elf.srelbss; | |
| 7412 | } | |
| 1d7e9d18 | 7413 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7414 | { |
| 4a7e5234 AM |
7415 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic |
| 7416 | linker to copy the initial value out of the dynamic object | |
| 7417 | and into the runtime process image. */ | |
| 5474d94f | 7418 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7419 | h->needs_copy = 1; |
| 5bd4f169 AM |
7420 | } |
| 7421 | ||
| 529fe20e AM |
7422 | /* We no longer want dyn_relocs. */ |
| 7423 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 6cabe1ea | 7424 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7425 | } |
| 7426 | ||
| e86ce104 AM |
7427 | /* If given a function descriptor symbol, hide both the function code |
| 7428 | sym and the descriptor. */ | |
| 7429 | static void | |
| 4ce794b7 AM |
7430 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7431 | struct elf_link_hash_entry *h, | |
| 7432 | bfd_boolean force_local) | |
| e86ce104 | 7433 | { |
| 34814b9f | 7434 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7435 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7436 | ||
| 34814b9f AM |
7437 | eh = (struct ppc_link_hash_entry *) h; |
| 7438 | if (eh->is_func_descriptor) | |
| e86ce104 | 7439 | { |
| 34814b9f | 7440 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7441 | |
| 721956f4 | 7442 | if (fh == NULL) |
| d1329ca3 AM |
7443 | { |
| 7444 | const char *p, *q; | |
| b8ac2841 | 7445 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7446 | char save; |
| 7447 | ||
| 7448 | /* We aren't supposed to use alloca in BFD because on | |
| 7449 | systems which do not have alloca the version in libiberty | |
| 7450 | calls xmalloc, which might cause the program to crash | |
| 7451 | when it runs out of memory. This function doesn't have a | |
| 7452 | return status, so there's no way to gracefully return an | |
| 7453 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7454 | accessed; It's either a string in an ELF string table, |
| 7455 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7456 | |
| 34814b9f | 7457 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7458 | save = *p; |
| 7459 | *(char *) p = '.'; | |
| 34814b9f | 7460 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7461 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7462 | *(char *) p = save; |
| 7463 | ||
| 7464 | /* Unfortunately, if it so happens that the string we were | |
| 7465 | looking for was allocated immediately before this string, | |
| 7466 | then we overwrote the string terminator. That's the only | |
| 7467 | reason the lookup should fail. */ | |
| 7468 | if (fh == NULL) | |
| 7469 | { | |
| 34814b9f AM |
7470 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7471 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7472 | --q, --p; |
| 34814b9f AM |
7473 | if (q < eh->elf.root.root.string && *p == '.') |
| 7474 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7475 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7476 | } |
| 7477 | if (fh != NULL) | |
| 7478 | { | |
| 34814b9f AM |
7479 | eh->oh = fh; |
| 7480 | fh->oh = eh; | |
| d1329ca3 AM |
7481 | } |
| 7482 | } | |
| e86ce104 | 7483 | if (fh != NULL) |
| 34814b9f | 7484 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7485 | } |
| 7486 | } | |
| 7487 | ||
| 411e1bfb | 7488 | static bfd_boolean |
| 8843416a AM |
7489 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7490 | Elf_Internal_Sym **symp, | |
| 7491 | asection **symsecp, | |
| f961d9dd | 7492 | unsigned char **tls_maskp, |
| 8843416a AM |
7493 | Elf_Internal_Sym **locsymsp, |
| 7494 | unsigned long r_symndx, | |
| 7495 | bfd *ibfd) | |
| 411e1bfb | 7496 | { |
| 0ffa91dd | 7497 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7498 | |
| 7499 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7500 | { | |
| 7501 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7502 | struct elf_link_hash_entry *h; | |
| 7503 | ||
| 7504 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7505 | h = elf_follow_link (h); |
| 411e1bfb AM |
7506 | |
| 7507 | if (hp != NULL) | |
| 7508 | *hp = h; | |
| 7509 | ||
| 7510 | if (symp != NULL) | |
| 7511 | *symp = NULL; | |
| 7512 | ||
| 7513 | if (symsecp != NULL) | |
| 7514 | { | |
| 7515 | asection *symsec = NULL; | |
| 7516 | if (h->root.type == bfd_link_hash_defined | |
| 7517 | || h->root.type == bfd_link_hash_defweak) | |
| 7518 | symsec = h->root.u.def.section; | |
| 7519 | *symsecp = symsec; | |
| 7520 | } | |
| 7521 | ||
| e7b938ca | 7522 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7523 | { |
| 7524 | struct ppc_link_hash_entry *eh; | |
| 7525 | ||
| 7526 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7527 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7528 | } |
| 7529 | } | |
| 7530 | else | |
| 7531 | { | |
| 7532 | Elf_Internal_Sym *sym; | |
| 7533 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7534 | ||
| 7535 | if (locsyms == NULL) | |
| 7536 | { | |
| 7537 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7538 | if (locsyms == NULL) | |
| 7539 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7540 | symtab_hdr->sh_info, | |
| 7541 | 0, NULL, NULL, NULL); | |
| 7542 | if (locsyms == NULL) | |
| 7543 | return FALSE; | |
| 7544 | *locsymsp = locsyms; | |
| 7545 | } | |
| 7546 | sym = locsyms + r_symndx; | |
| 7547 | ||
| 7548 | if (hp != NULL) | |
| 7549 | *hp = NULL; | |
| 7550 | ||
| 7551 | if (symp != NULL) | |
| 7552 | *symp = sym; | |
| 7553 | ||
| 7554 | if (symsecp != NULL) | |
| cb33740c | 7555 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7556 | |
| e7b938ca | 7557 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7558 | { |
| 7559 | struct got_entry **lgot_ents; | |
| f961d9dd | 7560 | unsigned char *tls_mask; |
| 411e1bfb | 7561 | |
| e7b938ca | 7562 | tls_mask = NULL; |
| 411e1bfb AM |
7563 | lgot_ents = elf_local_got_ents (ibfd); |
| 7564 | if (lgot_ents != NULL) | |
| 7565 | { | |
| e054468f AM |
7566 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7567 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7568 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7569 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7570 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7571 | } |
| e7b938ca | 7572 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7573 | } |
| 7574 | } | |
| 7575 | return TRUE; | |
| 7576 | } | |
| 7577 | ||
| e7b938ca | 7578 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7579 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7580 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7581 | |
| 7582 | static int | |
| f961d9dd | 7583 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7584 | unsigned long *toc_symndx, |
| 7585 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7586 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7587 | const Elf_Internal_Rela *rel, |
| 7588 | bfd *ibfd) | |
| 411e1bfb AM |
7589 | { |
| 7590 | unsigned long r_symndx; | |
| 0d4792f7 | 7591 | int next_r; |
| 411e1bfb AM |
7592 | struct elf_link_hash_entry *h; |
| 7593 | Elf_Internal_Sym *sym; | |
| 7594 | asection *sec; | |
| 7595 | bfd_vma off; | |
| 7596 | ||
| 7597 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7598 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7599 | return 0; |
| 411e1bfb | 7600 | |
| 37da22e5 AM |
7601 | if ((*tls_maskp != NULL |
| 7602 | && (**tls_maskp & TLS_TLS) != 0 | |
| 7603 | && **tls_maskp != (TLS_TLS | TLS_MARK)) | |
| 411e1bfb | 7604 | || sec == NULL |
| 6bee8834 | 7605 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7606 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7607 | return 1; |
| 411e1bfb AM |
7608 | |
| 7609 | /* Look inside a TOC section too. */ | |
| 7610 | if (h != NULL) | |
| 7611 | { | |
| 7612 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7613 | off = h->root.u.def.value; | |
| 7614 | } | |
| 7615 | else | |
| 7616 | off = sym->st_value; | |
| 7617 | off += rel->r_addend; | |
| 7618 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7619 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7620 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7621 | if (toc_symndx != NULL) |
| 7622 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7623 | if (toc_addend != NULL) |
| 7624 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7625 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7626 | return 0; | |
| 854b41e7 | 7627 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7628 | && (next_r == -1 || next_r == -2)) |
| 7629 | return 1 - next_r; | |
| 951fd09b | 7630 | return 1; |
| 411e1bfb AM |
7631 | } |
| 7632 | ||
| 3b421ab3 AM |
7633 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7634 | ||
| 7635 | static struct tocsave_entry * | |
| 7636 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7637 | enum insert_option insert, | |
| 7638 | Elf_Internal_Sym **local_syms, | |
| 7639 | const Elf_Internal_Rela *irela, | |
| 7640 | bfd *ibfd) | |
| 7641 | { | |
| 7642 | unsigned long r_indx; | |
| 7643 | struct elf_link_hash_entry *h; | |
| 7644 | Elf_Internal_Sym *sym; | |
| 7645 | struct tocsave_entry ent, *p; | |
| 7646 | hashval_t hash; | |
| 7647 | struct tocsave_entry **slot; | |
| 7648 | ||
| 7649 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7650 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7651 | return NULL; | |
| 7652 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7653 | { | |
| 4eca0228 | 7654 | _bfd_error_handler |
| 871b3ab2 | 7655 | (_("%pB: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7656 | return NULL; |
| 7657 | } | |
| 7658 | ||
| 7659 | if (h != NULL) | |
| 7660 | ent.offset = h->root.u.def.value; | |
| 7661 | else | |
| 7662 | ent.offset = sym->st_value; | |
| 7663 | ent.offset += irela->r_addend; | |
| 7664 | ||
| 7665 | hash = tocsave_htab_hash (&ent); | |
| 7666 | slot = ((struct tocsave_entry **) | |
| 7667 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7668 | if (slot == NULL) | |
| 7669 | return NULL; | |
| 7670 | ||
| 7671 | if (*slot == NULL) | |
| 7672 | { | |
| 7673 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7674 | if (p == NULL) | |
| 7675 | return NULL; | |
| 7676 | *p = ent; | |
| 7677 | *slot = p; | |
| 7678 | } | |
| 7679 | return *slot; | |
| 7680 | } | |
| 7681 | ||
| 754021d0 | 7682 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7683 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7684 | |
| 7685 | static bfd_boolean | |
| 7686 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7687 | { | |
| 7688 | struct ppc_link_hash_entry *eh; | |
| 7689 | asection *sym_sec; | |
| 74f0fb50 | 7690 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7691 | |
| 7692 | if (h->root.type == bfd_link_hash_indirect) | |
| 7693 | return TRUE; | |
| 7694 | ||
| 754021d0 AM |
7695 | if (h->root.type != bfd_link_hash_defined |
| 7696 | && h->root.type != bfd_link_hash_defweak) | |
| 7697 | return TRUE; | |
| 7698 | ||
| 7699 | eh = (struct ppc_link_hash_entry *) h; | |
| 7700 | if (eh->adjust_done) | |
| 7701 | return TRUE; | |
| 7702 | ||
| 7703 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7704 | opd = get_opd_info (sym_sec); |
| 7705 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7706 | { |
| 51aecdc5 | 7707 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7708 | if (adjust == -1) |
| 7709 | { | |
| 7710 | /* This entry has been deleted. */ | |
| b3fac117 | 7711 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7712 | if (dsec == NULL) |
| 7713 | { | |
| 7714 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7715 | if (discarded_section (dsec)) |
| 81688140 | 7716 | { |
| b3fac117 | 7717 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7718 | break; |
| 7719 | } | |
| 7720 | } | |
| 4025353c | 7721 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7722 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7723 | } |
| 7724 | else | |
| 7725 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7726 | eh->adjust_done = 1; |
| 7727 | } | |
| 7728 | return TRUE; | |
| 7729 | } | |
| 7730 | ||
| 8c1d1bb8 | 7731 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7732 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7733 | have already been determined. */ |
| 7734 | ||
| 7735 | static bfd_boolean | |
| 7736 | dec_dynrel_count (bfd_vma r_info, | |
| 7737 | asection *sec, | |
| 7738 | struct bfd_link_info *info, | |
| 7739 | Elf_Internal_Sym **local_syms, | |
| 7740 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7741 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7742 | { |
| 7743 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7744 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7745 | |
| 7746 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7747 | should be kept in sync with the code in check_relocs. */ | |
| 7748 | r_type = ELF64_R_TYPE (r_info); | |
| 7749 | switch (r_type) | |
| 7750 | { | |
| 7751 | default: | |
| 7752 | return TRUE; | |
| 7753 | ||
| 7754 | case R_PPC64_TPREL16: | |
| 7755 | case R_PPC64_TPREL16_LO: | |
| 7756 | case R_PPC64_TPREL16_HI: | |
| 7757 | case R_PPC64_TPREL16_HA: | |
| 7758 | case R_PPC64_TPREL16_DS: | |
| 7759 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7760 | case R_PPC64_TPREL16_HIGH: |
| 7761 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7762 | case R_PPC64_TPREL16_HIGHER: |
| 7763 | case R_PPC64_TPREL16_HIGHERA: | |
| 7764 | case R_PPC64_TPREL16_HIGHEST: | |
| 7765 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7766 | case R_PPC64_TPREL64: |
| 7767 | case R_PPC64_DTPMOD64: | |
| 7768 | case R_PPC64_DTPREL64: | |
| 7769 | case R_PPC64_ADDR64: | |
| 7770 | case R_PPC64_REL30: | |
| 7771 | case R_PPC64_REL32: | |
| 7772 | case R_PPC64_REL64: | |
| 7773 | case R_PPC64_ADDR14: | |
| 7774 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7775 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7776 | case R_PPC64_ADDR16: | |
| 7777 | case R_PPC64_ADDR16_DS: | |
| 7778 | case R_PPC64_ADDR16_HA: | |
| 7779 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7780 | case R_PPC64_ADDR16_HIGH: |
| 7781 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7782 | case R_PPC64_ADDR16_HIGHER: |
| 7783 | case R_PPC64_ADDR16_HIGHERA: | |
| 7784 | case R_PPC64_ADDR16_HIGHEST: | |
| 7785 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7786 | case R_PPC64_ADDR16_LO: | |
| 7787 | case R_PPC64_ADDR16_LO_DS: | |
| 7788 | case R_PPC64_ADDR24: | |
| 7789 | case R_PPC64_ADDR32: | |
| 7790 | case R_PPC64_UADDR16: | |
| 7791 | case R_PPC64_UADDR32: | |
| 7792 | case R_PPC64_UADDR64: | |
| 7793 | case R_PPC64_TOC: | |
| 7794 | break; | |
| 7795 | } | |
| 7796 | ||
| 7797 | if (local_syms != NULL) | |
| 7798 | { | |
| 7799 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7800 | bfd *ibfd = sec->owner; |
| 7801 | ||
| 7802 | r_symndx = ELF64_R_SYM (r_info); | |
| 7803 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7804 | return FALSE; | |
| 7805 | } | |
| 7806 | ||
| 0e1862bb | 7807 | if ((bfd_link_pic (info) |
| 1d483afe | 7808 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7809 | || (h != NULL |
| 198f1157 | 7810 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7811 | || h->root.type == bfd_link_hash_defweak |
| 7812 | || !h->def_regular)))) | |
| 7813 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7814 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7815 | && h != NULL |
| 7816 | && (h->root.type == bfd_link_hash_defweak | |
| 7817 | || !h->def_regular))) | |
| 7818 | ; | |
| 7819 | else | |
| 7820 | return TRUE; | |
| 7821 | ||
| 7822 | if (h != NULL) | |
| 6edfbbad | 7823 | { |
| 19e08130 AM |
7824 | struct elf_dyn_relocs *p; |
| 7825 | struct elf_dyn_relocs **pp; | |
| 7826 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7827 | ||
| 7828 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7829 | with local syms for a given section. Also, symbol flags are | |
| 7830 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7831 | report a dynreloc miscount. */ | |
| 7832 | if (*pp == NULL && info->gc_sections) | |
| 7833 | return TRUE; | |
| 7834 | ||
| 7835 | while ((p = *pp) != NULL) | |
| 60124e18 | 7836 | { |
| 19e08130 AM |
7837 | if (p->sec == sec) |
| 7838 | { | |
| 7839 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7840 | p->pc_count -= 1; | |
| 7841 | p->count -= 1; | |
| 7842 | if (p->count == 0) | |
| 7843 | *pp = p->next; | |
| 7844 | return TRUE; | |
| 7845 | } | |
| 7846 | pp = &p->next; | |
| 60124e18 | 7847 | } |
| 6edfbbad | 7848 | } |
| 19e08130 AM |
7849 | else |
| 7850 | { | |
| 7851 | struct ppc_dyn_relocs *p; | |
| 7852 | struct ppc_dyn_relocs **pp; | |
| 7853 | void *vpp; | |
| 7854 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7855 | |
| 19e08130 AM |
7856 | if (local_syms == NULL) |
| 7857 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7858 | if (sym_sec == NULL) | |
| 7859 | sym_sec = sec; | |
| c57da1a7 | 7860 | |
| 19e08130 AM |
7861 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7862 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7863 | ||
| 7864 | if (*pp == NULL && info->gc_sections) | |
| 7865 | return TRUE; | |
| 7866 | ||
| 7867 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7868 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7869 | { |
| 19e08130 AM |
7870 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7871 | { | |
| 7872 | p->count -= 1; | |
| 7873 | if (p->count == 0) | |
| 7874 | *pp = p->next; | |
| 7875 | return TRUE; | |
| 7876 | } | |
| 7877 | pp = &p->next; | |
| 8c1d1bb8 | 7878 | } |
| 8c1d1bb8 AM |
7879 | } |
| 7880 | ||
| 695344c0 | 7881 | /* xgettext:c-format */ |
| cf97bcb0 AM |
7882 | _bfd_error_handler (_("dynreloc miscount for %pB, section %pA"), |
| 7883 | sec->owner, sec); | |
| 8c1d1bb8 AM |
7884 | bfd_set_error (bfd_error_bad_value); |
| 7885 | return FALSE; | |
| 7886 | } | |
| 7887 | ||
| 754021d0 AM |
7888 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7889 | only remove those associated with functions in discarded link-once | |
| 7890 | sections, or weakly defined functions that have been overridden. It | |
| 7891 | would be possible to remove many more entries for statically linked | |
| 7892 | applications. */ | |
| 7893 | ||
| b34976b6 | 7894 | bfd_boolean |
| e7d1c40c | 7895 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7896 | { |
| 7897 | bfd *ibfd; | |
| 754021d0 | 7898 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7899 | asection *need_pad = NULL; |
| e7d1c40c AM |
7900 | struct ppc_link_hash_table *htab; |
| 7901 | ||
| 7902 | htab = ppc_hash_table (info); | |
| 7903 | if (htab == NULL) | |
| 7904 | return FALSE; | |
| 1e2f5b6e | 7905 | |
| c72f2fb2 | 7906 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7907 | { |
| 7908 | asection *sec; | |
| 7909 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7910 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7911 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7912 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7913 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7914 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7915 | |
| 854b41e7 AM |
7916 | if (!is_ppc64_elf (ibfd)) |
| 7917 | continue; | |
| 7918 | ||
| 1e2f5b6e | 7919 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7920 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7921 | continue; |
| 7922 | ||
| dbaa2011 | 7923 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7924 | continue; |
| 7925 | ||
| 1e2f5b6e AM |
7926 | if (sec->output_section == bfd_abs_section_ptr) |
| 7927 | continue; | |
| 7928 | ||
| 7929 | /* Look through the section relocs. */ | |
| 7930 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7931 | continue; | |
| 7932 | ||
| 6cdc0ccc | 7933 | local_syms = NULL; |
| 0ffa91dd | 7934 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7935 | |
| 7936 | /* Read the relocations. */ | |
| 4ce794b7 | 7937 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7938 | info->keep_memory); |
| 1e2f5b6e | 7939 | if (relstart == NULL) |
| b34976b6 | 7940 | return FALSE; |
| 1e2f5b6e AM |
7941 | |
| 7942 | /* First run through the relocs to check they are sane, and to | |
| 7943 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7944 | need_edit = FALSE; |
| 51aecdc5 | 7945 | broken = FALSE; |
| 3f764659 | 7946 | need_pad = sec; |
| 1e2f5b6e | 7947 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7948 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7949 | { |
| 04c9666a | 7950 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7951 | unsigned long r_symndx; |
| 7952 | asection *sym_sec; | |
| 7953 | struct elf_link_hash_entry *h; | |
| 7954 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7955 | bfd_vma offset; |
| 1e2f5b6e | 7956 | |
| 51aecdc5 | 7957 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7958 | only interested in the reloc pointing to a function entry |
| 7959 | point. */ | |
| 51aecdc5 AM |
7960 | offset = rel->r_offset; |
| 7961 | if (rel + 1 == relend | |
| 7962 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7963 | { |
| 7964 | /* If someone messes with .opd alignment then after a | |
| 7965 | "ld -r" we might have padding in the middle of .opd. | |
| 7966 | Also, there's nothing to prevent someone putting | |
| 7967 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7968 | optimization for them! */ |
| 3f764659 | 7969 | broken_opd: |
| 4eca0228 | 7970 | _bfd_error_handler |
| 871b3ab2 | 7971 | (_("%pB: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7972 | broken = TRUE; |
| 1e2f5b6e AM |
7973 | break; |
| 7974 | } | |
| 7975 | ||
| 50bc7936 AM |
7976 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7977 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7978 | { | |
| 4eca0228 | 7979 | _bfd_error_handler |
| 695344c0 | 7980 | /* xgettext:c-format */ |
| 871b3ab2 | 7981 | (_("%pB: unexpected reloc type %u in .opd section"), |
| d003868e | 7982 | ibfd, r_type); |
| 51aecdc5 | 7983 | broken = TRUE; |
| 50bc7936 AM |
7984 | break; |
| 7985 | } | |
| 7986 | ||
| 1e2f5b6e | 7987 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7988 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7989 | r_symndx, ibfd)) | |
| 50bc7936 | 7990 | goto error_ret; |
| 1e2f5b6e AM |
7991 | |
| 7992 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7993 | { | |
| 411e1bfb AM |
7994 | const char *sym_name; |
| 7995 | if (h != NULL) | |
| 7996 | sym_name = h->root.root.string; | |
| 7997 | else | |
| 26c61ae5 L |
7998 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7999 | sym_sec); | |
| 411e1bfb | 8000 | |
| 4eca0228 | 8001 | _bfd_error_handler |
| 695344c0 | 8002 | /* xgettext:c-format */ |
| 871b3ab2 | 8003 | (_("%pB: undefined sym `%s' in .opd section"), |
| d003868e | 8004 | ibfd, sym_name); |
| 51aecdc5 | 8005 | broken = TRUE; |
| 1e2f5b6e AM |
8006 | break; |
| 8007 | } | |
| 8008 | ||
| 51020317 AM |
8009 | /* opd entries are always for functions defined in the |
| 8010 | current input bfd. If the symbol isn't defined in the | |
| 8011 | input bfd, then we won't be using the function in this | |
| 8012 | bfd; It must be defined in a linkonce section in another | |
| 8013 | bfd, or is weak. It's also possible that we are | |
| 8014 | discarding the function due to a linker script /DISCARD/, | |
| 8015 | which we test for via the output_section. */ | |
| 8016 | if (sym_sec->owner != ibfd | |
| 8017 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 8018 | need_edit = TRUE; |
| 1e2f5b6e | 8019 | |
| 50bc7936 | 8020 | rel += 2; |
| 51aecdc5 AM |
8021 | if (rel + 1 == relend |
| 8022 | || (rel + 2 < relend | |
| 8023 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 8024 | ++rel; | |
| 8025 | ||
| 8026 | if (rel == relend) | |
| 3f764659 JJ |
8027 | { |
| 8028 | if (sec->size == offset + 24) | |
| 8029 | { | |
| 8030 | need_pad = NULL; | |
| 8031 | break; | |
| 8032 | } | |
| 51aecdc5 | 8033 | if (sec->size == offset + 16) |
| 3f764659 JJ |
8034 | { |
| 8035 | cnt_16b++; | |
| 8036 | break; | |
| 8037 | } | |
| 8038 | goto broken_opd; | |
| 8039 | } | |
| 3f764659 JJ |
8040 | else if (rel + 1 < relend |
| 8041 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 8042 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 8043 | { | |
| 51aecdc5 AM |
8044 | if (rel[0].r_offset == offset + 16) |
| 8045 | cnt_16b++; | |
| 8046 | else if (rel[0].r_offset != offset + 24) | |
| 8047 | goto broken_opd; | |
| 3f764659 JJ |
8048 | } |
| 8049 | else | |
| 8050 | goto broken_opd; | |
| 1e2f5b6e AM |
8051 | } |
| 8052 | ||
| e7d1c40c | 8053 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 8054 | |
| 51aecdc5 | 8055 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
8056 | { |
| 8057 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 8058 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 8059 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 8060 | bfd_byte *new_contents; |
| 74f0fb50 AM |
8061 | bfd_size_type amt; |
| 8062 | ||
| 983bddc8 | 8063 | new_contents = NULL; |
| 51aecdc5 | 8064 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 8065 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 8066 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
8067 | if (opd->adjust == NULL) |
| 8068 | return FALSE; | |
| 1e2f5b6e AM |
8069 | |
| 8070 | /* This seems a waste of time as input .opd sections are all | |
| 8071 | zeros as generated by gcc, but I suppose there's no reason | |
| 8072 | this will always be so. We might start putting something in | |
| 8073 | the third word of .opd entries. */ | |
| 8074 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 8075 | { | |
| eea6121a AM |
8076 | bfd_byte *loc; |
| 8077 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 8078 | { |
| eea6121a AM |
8079 | if (loc != NULL) |
| 8080 | free (loc); | |
| 50bc7936 | 8081 | error_ret: |
| 6cdc0ccc AM |
8082 | if (local_syms != NULL |
| 8083 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8084 | free (local_syms); | |
| 6cdc0ccc AM |
8085 | if (elf_section_data (sec)->relocs != relstart) |
| 8086 | free (relstart); | |
| b34976b6 | 8087 | return FALSE; |
| 6cdc0ccc | 8088 | } |
| 1e2f5b6e AM |
8089 | sec->contents = loc; |
| 8090 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8091 | } | |
| 8092 | ||
| 8093 | elf_section_data (sec)->relocs = relstart; | |
| 8094 | ||
| 3f764659 | 8095 | new_contents = sec->contents; |
| 3f764659 JJ |
8096 | if (add_aux_fields) |
| 8097 | { | |
| 8098 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 8099 | if (new_contents == NULL) | |
| 8100 | return FALSE; | |
| 51aecdc5 | 8101 | need_pad = NULL; |
| 3f764659 | 8102 | } |
| b4f4e59f AM |
8103 | wptr = new_contents; |
| 8104 | rptr = sec->contents; | |
| 1e2f5b6e | 8105 | write_rel = relstart; |
| 51aecdc5 | 8106 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8107 | { |
| 50bc7936 AM |
8108 | unsigned long r_symndx; |
| 8109 | asection *sym_sec; | |
| 8110 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8111 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8112 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8113 | long opd_ent_size; |
| 8114 | Elf_Internal_Rela *next_rel; | |
| 8115 | bfd_boolean skip; | |
| 50bc7936 AM |
8116 | |
| 8117 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8118 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8119 | r_symndx, ibfd)) |
| 50bc7936 AM |
8120 | goto error_ret; |
| 8121 | ||
| 51aecdc5 AM |
8122 | next_rel = rel + 2; |
| 8123 | if (next_rel + 1 == relend | |
| 8124 | || (next_rel + 2 < relend | |
| 8125 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8126 | ++next_rel; | |
| 8127 | ||
| 8128 | /* See if the .opd entry is full 24 byte or | |
| 8129 | 16 byte (with fd_aux entry overlapped with next | |
| 8130 | fd_func). */ | |
| 8131 | opd_ent_size = 24; | |
| 8132 | if (next_rel == relend) | |
| 1e2f5b6e | 8133 | { |
| 51aecdc5 | 8134 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8135 | opd_ent_size = 16; |
| 51aecdc5 AM |
8136 | } |
| 8137 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8138 | opd_ent_size = 16; | |
| 3f764659 | 8139 | |
| 51aecdc5 AM |
8140 | if (h != NULL |
| 8141 | && h->root.root.string[0] == '.') | |
| 8142 | { | |
| 8c5b4e52 AM |
8143 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8144 | if (fdh != NULL) | |
| 8145 | { | |
| 8146 | fdh = ppc_follow_link (fdh); | |
| 8147 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8148 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8149 | fdh = NULL; | |
| 8150 | } | |
| 51aecdc5 | 8151 | } |
| 1e2f5b6e | 8152 | |
| 51aecdc5 AM |
8153 | skip = (sym_sec->owner != ibfd |
| 8154 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8155 | if (skip) | |
| 8156 | { | |
| 8157 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8158 | { |
| 51aecdc5 AM |
8159 | /* Arrange for the function descriptor sym |
| 8160 | to be dropped. */ | |
| 8161 | fdh->elf.root.u.def.value = 0; | |
| 8162 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8163 | } |
| 51aecdc5 | 8164 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8165 | |
| 0e1862bb | 8166 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8167 | rel = next_rel; |
| 8168 | else | |
| 8169 | while (1) | |
| 8170 | { | |
| 8171 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8172 | NULL, h, sym)) | |
| 8173 | goto error_ret; | |
| 754021d0 | 8174 | |
| 51aecdc5 AM |
8175 | if (++rel == next_rel) |
| 8176 | break; | |
| 1e2f5b6e | 8177 | |
| 51aecdc5 AM |
8178 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8179 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8180 | r_symndx, ibfd)) | |
| 8181 | goto error_ret; | |
| 8182 | } | |
| 50bc7936 AM |
8183 | } |
| 8184 | else | |
| 1e2f5b6e | 8185 | { |
| 51aecdc5 AM |
8186 | /* We'll be keeping this opd entry. */ |
| 8187 | long adjust; | |
| 8188 | ||
| 8189 | if (fdh != NULL) | |
| 8190 | { | |
| 8191 | /* Redefine the function descriptor symbol to | |
| 8192 | this location in the opd section. It is | |
| 8193 | necessary to update the value here rather | |
| 8194 | than using an array of adjustments as we do | |
| 8195 | for local symbols, because various places | |
| 8196 | in the generic ELF code use the value | |
| 8197 | stored in u.def.value. */ | |
| 8198 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8199 | fdh->adjust_done = 1; | |
| 8200 | } | |
| 8201 | ||
| 8202 | /* Local syms are a bit tricky. We could | |
| 8203 | tweak them as they can be cached, but | |
| 8204 | we'd need to look through the local syms | |
| 8205 | for the function descriptor sym which we | |
| 8206 | don't have at the moment. So keep an | |
| 8207 | array of adjustments. */ | |
| 8208 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8209 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8210 | ||
| 8211 | if (wptr != rptr) | |
| 8212 | memcpy (wptr, rptr, opd_ent_size); | |
| 8213 | wptr += opd_ent_size; | |
| 8214 | if (add_aux_fields && opd_ent_size == 16) | |
| 8215 | { | |
| 8216 | memset (wptr, '\0', 8); | |
| 8217 | wptr += 8; | |
| 8218 | } | |
| 8219 | ||
| 50bc7936 | 8220 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8221 | new opd entries. */ |
| 8222 | for ( ; rel != next_rel; ++rel) | |
| 8223 | { | |
| 8224 | rel->r_offset += adjust; | |
| 8225 | if (write_rel != rel) | |
| 8226 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8227 | ++write_rel; | |
| 8228 | } | |
| 1e2f5b6e | 8229 | } |
| 51aecdc5 AM |
8230 | |
| 8231 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8232 | } |
| 8233 | ||
| 3f764659 | 8234 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8235 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8236 | if (add_aux_fields) |
| 8237 | { | |
| 8238 | free (sec->contents); | |
| 8239 | sec->contents = new_contents; | |
| 8240 | } | |
| 8241 | ||
| 05bf9422 | 8242 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8243 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8244 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8245 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8246 | some_edited = TRUE; |
| 1e2f5b6e | 8247 | } |
| 6cdc0ccc | 8248 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8249 | free (relstart); |
| 6cdc0ccc | 8250 | |
| 411e1bfb AM |
8251 | if (local_syms != NULL |
| 8252 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8253 | { | |
| 8254 | if (!info->keep_memory) | |
| 8255 | free (local_syms); | |
| 8256 | else | |
| 8257 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8258 | } | |
| 8259 | } | |
| 8260 | ||
| 754021d0 AM |
8261 | if (some_edited) |
| 8262 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8263 | ||
| 3f764659 JJ |
8264 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8265 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8266 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8267 | { |
| 8268 | bfd_byte *p; | |
| 8269 | ||
| 8270 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8271 | { | |
| 8272 | BFD_ASSERT (need_pad->size > 0); | |
| 8273 | ||
| 8274 | p = bfd_malloc (need_pad->size + 8); | |
| 8275 | if (p == NULL) | |
| 8276 | return FALSE; | |
| 699733f6 | 8277 | |
| 3f764659 JJ |
8278 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8279 | p, 0, need_pad->size)) | |
| 8280 | return FALSE; | |
| 8281 | ||
| 8282 | need_pad->contents = p; | |
| 8283 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8284 | } | |
| 8285 | else | |
| 8286 | { | |
| 8287 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8288 | if (p == NULL) | |
| 8289 | return FALSE; | |
| 8290 | ||
| 8291 | need_pad->contents = p; | |
| 8292 | } | |
| 8293 | ||
| 8294 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8295 | need_pad->size += 8; | |
| 8296 | } | |
| 8297 | ||
| 411e1bfb AM |
8298 | return TRUE; |
| 8299 | } | |
| 8300 | ||
| 3e04d765 AM |
8301 | /* Analyze inline PLT call relocations to see whether calls to locally |
| 8302 | defined functions can be converted to direct calls. */ | |
| 8303 | ||
| 8304 | bfd_boolean | |
| 8305 | ppc64_elf_inline_plt (struct bfd_link_info *info) | |
| 8306 | { | |
| 8307 | struct ppc_link_hash_table *htab; | |
| 8308 | bfd *ibfd; | |
| 8309 | asection *sec; | |
| 8310 | bfd_vma low_vma, high_vma, limit; | |
| 8311 | ||
| 8312 | htab = ppc_hash_table (info); | |
| 8313 | if (htab == NULL) | |
| 8314 | return FALSE; | |
| 8315 | ||
| 8316 | /* A bl insn can reach -0x2000000 to 0x1fffffc. The limit is | |
| 8317 | reduced somewhat to cater for possible stubs that might be added | |
| 8318 | between the call and its destination. */ | |
| 8319 | if (htab->params->group_size < 0) | |
| 8320 | { | |
| 8321 | limit = -htab->params->group_size; | |
| 8322 | if (limit == 1) | |
| 8323 | limit = 0x1e00000; | |
| 8324 | } | |
| 8325 | else | |
| 8326 | { | |
| 8327 | limit = htab->params->group_size; | |
| 8328 | if (limit == 1) | |
| 8329 | limit = 0x1c00000; | |
| 8330 | } | |
| 8331 | ||
| 8332 | low_vma = -1; | |
| 8333 | high_vma = 0; | |
| 8334 | for (sec = info->output_bfd->sections; sec != NULL; sec = sec->next) | |
| 8335 | if ((sec->flags & (SEC_ALLOC | SEC_CODE)) == (SEC_ALLOC | SEC_CODE)) | |
| 8336 | { | |
| 8337 | if (low_vma > sec->vma) | |
| 8338 | low_vma = sec->vma; | |
| 8339 | if (high_vma < sec->vma + sec->size) | |
| 8340 | high_vma = sec->vma + sec->size; | |
| 8341 | } | |
| 8342 | ||
| 8343 | /* If a "bl" can reach anywhere in local code sections, then we can | |
| 8344 | convert all inline PLT sequences to direct calls when the symbol | |
| 8345 | is local. */ | |
| 8346 | if (high_vma - low_vma < limit) | |
| 8347 | { | |
| 8348 | htab->can_convert_all_inline_plt = 1; | |
| 8349 | return TRUE; | |
| 8350 | } | |
| 8351 | ||
| 8352 | /* Otherwise, go looking through relocs for cases where a direct | |
| 8353 | call won't reach. Mark the symbol on any such reloc to disable | |
| 8354 | the optimization and keep the PLT entry as it seems likely that | |
| 8355 | this will be better than creating trampolines. Note that this | |
| 8356 | will disable the optimization for all inline PLT calls to a | |
| 8357 | particular symbol, not just those that won't reach. The | |
| 8358 | difficulty in doing a more precise optimization is that the | |
| 8359 | linker needs to make a decision depending on whether a | |
| 8360 | particular R_PPC64_PLTCALL insn can be turned into a direct | |
| 8361 | call, for each of the R_PPC64_PLTSEQ and R_PPC64_PLT16* insns in | |
| 8362 | the sequence, and there is nothing that ties those relocs | |
| 8363 | together except their symbol. */ | |
| 8364 | ||
| 8365 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) | |
| 8366 | { | |
| 8367 | Elf_Internal_Shdr *symtab_hdr; | |
| 8368 | Elf_Internal_Sym *local_syms; | |
| 8369 | ||
| 8370 | if (!is_ppc64_elf (ibfd)) | |
| 8371 | continue; | |
| 8372 | ||
| 8373 | local_syms = NULL; | |
| 8374 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8375 | ||
| 8376 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8377 | if (ppc64_elf_section_data (sec)->has_pltcall | |
| 8378 | && !bfd_is_abs_section (sec->output_section)) | |
| 8379 | { | |
| 8380 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 8381 | ||
| 8382 | /* Read the relocations. */ | |
| 8383 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8384 | info->keep_memory); | |
| 8385 | if (relstart == NULL) | |
| 8386 | return FALSE; | |
| 8387 | ||
| 8388 | relend = relstart + sec->reloc_count; | |
| 8389 | for (rel = relstart; rel < relend; ) | |
| 8390 | { | |
| 8391 | enum elf_ppc64_reloc_type r_type; | |
| 8392 | unsigned long r_symndx; | |
| 8393 | asection *sym_sec; | |
| 8394 | struct elf_link_hash_entry *h; | |
| 8395 | Elf_Internal_Sym *sym; | |
| 8396 | unsigned char *tls_maskp; | |
| 8397 | ||
| 8398 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8399 | if (r_type != R_PPC64_PLTCALL) | |
| 8400 | continue; | |
| 8401 | ||
| 8402 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8403 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_maskp, &local_syms, | |
| 8404 | r_symndx, ibfd)) | |
| 8405 | { | |
| 8406 | if (elf_section_data (sec)->relocs != relstart) | |
| 8407 | free (relstart); | |
| 8408 | if (local_syms != NULL | |
| 8409 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8410 | free (local_syms); | |
| 8411 | return FALSE; | |
| 8412 | } | |
| 8413 | ||
| 8414 | if (sym_sec != NULL && sym_sec->output_section != NULL) | |
| 8415 | { | |
| 8416 | bfd_vma from, to; | |
| 8417 | if (h != NULL) | |
| 8418 | to = h->root.u.def.value; | |
| 8419 | else | |
| 8420 | to = sym->st_value; | |
| 8421 | to += (rel->r_addend | |
| 8422 | + sym_sec->output_offset | |
| 8423 | + sym_sec->output_section->vma); | |
| 8424 | from = (rel->r_offset | |
| 8425 | + sec->output_offset | |
| 8426 | + sec->output_section->vma); | |
| 8427 | if (to - from + limit < 2 * limit) | |
| 8428 | *tls_maskp &= ~PLT_KEEP; | |
| 8429 | } | |
| 8430 | } | |
| 8431 | if (elf_section_data (sec)->relocs != relstart) | |
| 8432 | free (relstart); | |
| 8433 | } | |
| 8434 | ||
| 8435 | if (local_syms != NULL | |
| 8436 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8437 | { | |
| 8438 | if (!info->keep_memory) | |
| 8439 | free (local_syms); | |
| 8440 | else | |
| 8441 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8442 | } | |
| 8443 | } | |
| 8444 | ||
| 8445 | return TRUE; | |
| 8446 | } | |
| 8447 | ||
| e1918d23 | 8448 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8449 | |
| e1918d23 | 8450 | asection * |
| e7d1c40c | 8451 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8452 | { |
| 411e1bfb AM |
8453 | struct ppc_link_hash_table *htab; |
| 8454 | ||
| 411e1bfb | 8455 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8456 | if (htab == NULL) |
| 8457 | return NULL; | |
| 8458 | ||
| ee67d69a AM |
8459 | if (abiversion (info->output_bfd) == 1) |
| 8460 | htab->opd_abi = 1; | |
| 8461 | ||
| e7d1c40c | 8462 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8463 | htab->do_multi_toc = 0; |
| 8464 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8465 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8466 | |
| 8b5f1ed8 AM |
8467 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8468 | with symbol interposition. For example, glibc libpthread.so and | |
| 8469 | libc.so duplicate many pthread symbols, with a fallback | |
| 8470 | implementation in libc.so. In some cases the fallback does more | |
| 8471 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8472 | is one such symbol: the libpthread.so implementation is | |
| 8473 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8474 | An app that "cleverly" uses dlopen to only load necessary | |
| 8475 | libraries at runtime may omit loading libpthread.so when not | |
| 8476 | running multi-threaded, which then results in the libc.so | |
| 8477 | fallback symbols being used and ld.so complaining. Now there | |
| 8478 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8479 | pthread situation, but that may not be the only case where | |
| 8480 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8481 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8482 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8483 | if (htab->params->plt_localentry0 |
| 8484 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8485 | FALSE, FALSE, FALSE) == NULL) | |
| cf97bcb0 AM |
8486 | _bfd_error_handler |
| 8487 | (_("warning: --plt-localentry is especially dangerous without " | |
| 8488 | "ld.so support to detect ABI violations")); | |
| f378ab09 | 8489 | |
| 3a71aa26 AM |
8490 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8491 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8492 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8493 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8494 | if (htab->tls_get_addr != NULL) | |
| 8495 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8496 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8497 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8498 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8499 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8500 | { |
| 8501 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8502 | ||
| 8503 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8504 | FALSE, FALSE, TRUE); | |
| 8505 | if (opt != NULL) | |
| 8506 | func_desc_adjust (opt, info); | |
| 8507 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8508 | FALSE, FALSE, TRUE); | |
| 8509 | if (opt_fd != NULL | |
| 8510 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8511 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8512 | { | |
| 8513 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8514 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8515 | be calling __tls_get_addr via a plt call stub, then | |
| 8516 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8517 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8518 | if (htab->elf.dynamic_sections_created | |
| 8519 | && tga_fd != NULL | |
| 8520 | && (tga_fd->type == STT_FUNC | |
| 8521 | || tga_fd->needs_plt) | |
| 8522 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8523 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8524 | { |
| 8525 | struct plt_entry *ent; | |
| 8526 | ||
| 8527 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8528 | if (ent->plt.refcount > 0) | |
| 8529 | break; | |
| 8530 | if (ent != NULL) | |
| 8531 | { | |
| 8532 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8533 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8534 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8535 | opt_fd->mark = 1; |
| a7f2871e AM |
8536 | if (opt_fd->dynindx != -1) |
| 8537 | { | |
| 8538 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8539 | opt_fd->dynindx = -1; | |
| 8540 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8541 | opt_fd->dynstr_index); | |
| 8542 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8543 | return NULL; |
| a7f2871e AM |
8544 | } |
| 8545 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8546 | tga = &htab->tls_get_addr->elf; | |
| 8547 | if (opt != NULL && tga != NULL) | |
| 8548 | { | |
| 8549 | tga->root.type = bfd_link_hash_indirect; | |
| 8550 | tga->root.u.i.link = &opt->root; | |
| 8551 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8552 | opt->mark = 1; |
| a7f2871e AM |
8553 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8554 | tga->forced_local); | |
| 8555 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8556 | } | |
| 8557 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8558 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8559 | if (htab->tls_get_addr != NULL) | |
| 8560 | { | |
| 8561 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8562 | htab->tls_get_addr->is_func = 1; | |
| 8563 | } | |
| 8564 | } | |
| 8565 | } | |
| 8566 | } | |
| 7c9cf415 AM |
8567 | else if (htab->params->tls_get_addr_opt < 0) |
| 8568 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8569 | } |
| 33c0ec9d | 8570 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8571 | } |
| 8387904d | 8572 | |
| 3a71aa26 AM |
8573 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8574 | HASH1 or HASH2. */ | |
| 8387904d | 8575 | |
| 3a71aa26 AM |
8576 | static bfd_boolean |
| 8577 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8578 | const Elf_Internal_Rela *rel, | |
| 8579 | const struct ppc_link_hash_entry *hash1, | |
| 8580 | const struct ppc_link_hash_entry *hash2) | |
| 8581 | { | |
| 8582 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8583 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8584 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8585 | ||
| e054468f | 8586 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8587 | { |
| 3a71aa26 AM |
8588 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8589 | struct elf_link_hash_entry *h; | |
| 8387904d | 8590 | |
| 3a71aa26 | 8591 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8592 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8593 | if (h == &hash1->elf || h == &hash2->elf) |
| 8594 | return TRUE; | |
| a48ebf4d | 8595 | } |
| 3a71aa26 | 8596 | return FALSE; |
| 951fd09b | 8597 | } |
| 411e1bfb | 8598 | |
| 951fd09b AM |
8599 | /* Run through all the TLS relocs looking for optimization |
| 8600 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8601 | a preliminary section layout so that we know the TLS segment | |
| 8602 | offsets. We can't optimize earlier because some optimizations need | |
| 8603 | to know the tp offset, and we need to optimize before allocating | |
| 8604 | dynamic relocations. */ | |
| 8605 | ||
| 8606 | bfd_boolean | |
| 33c0ec9d | 8607 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8608 | { |
| 8609 | bfd *ibfd; | |
| 8610 | asection *sec; | |
| 8611 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8612 | unsigned char *toc_ref; |
| 102890f0 | 8613 | int pass; |
| 951fd09b | 8614 | |
| 3cbc1e5e | 8615 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8616 | return TRUE; |
| 8617 | ||
| 951fd09b | 8618 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8619 | if (htab == NULL) |
| 8620 | return FALSE; | |
| 8621 | ||
| 663a1470 AM |
8622 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8623 | entries involved with tls relocs, and check that tls relocs | |
| 8624 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8625 | such a call. If they are not, we can't do any tls optimization. | |
| 8626 | On the second pass twiddle tls_mask flags to notify | |
| 8627 | relocate_section that optimization can be done, and adjust got | |
| 8628 | and plt refcounts. */ | |
| 8629 | toc_ref = NULL; | |
| 8630 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8631 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8632 | { |
| 8633 | Elf_Internal_Sym *locsyms = NULL; | |
| 8634 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8635 | ||
| 102890f0 AM |
8636 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8637 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8638 | { | |
| 8639 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8640 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8641 | |
| 102890f0 AM |
8642 | /* Read the relocations. */ |
| 8643 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8644 | info->keep_memory); | |
| 8645 | if (relstart == NULL) | |
| 2915c55b JK |
8646 | { |
| 8647 | free (toc_ref); | |
| 8648 | return FALSE; | |
| 8649 | } | |
| 411e1bfb | 8650 | |
| 102890f0 AM |
8651 | relend = relstart + sec->reloc_count; |
| 8652 | for (rel = relstart; rel < relend; rel++) | |
| 8653 | { | |
| 8654 | enum elf_ppc64_reloc_type r_type; | |
| 8655 | unsigned long r_symndx; | |
| 8656 | struct elf_link_hash_entry *h; | |
| 8657 | Elf_Internal_Sym *sym; | |
| 8658 | asection *sym_sec; | |
| f961d9dd AM |
8659 | unsigned char *tls_mask; |
| 8660 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8661 | bfd_vma value; |
| 8662 | bfd_boolean ok_tprel, is_local; | |
| 8663 | long toc_ref_index = 0; | |
| 8664 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8665 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8666 | |
| 102890f0 AM |
8667 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8668 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8669 | r_symndx, ibfd)) | |
| 8670 | { | |
| 8671 | err_free_rel: | |
| 8672 | if (elf_section_data (sec)->relocs != relstart) | |
| 8673 | free (relstart); | |
| 8674 | if (toc_ref != NULL) | |
| 8675 | free (toc_ref); | |
| 8676 | if (locsyms != NULL | |
| 0ffa91dd | 8677 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8678 | != (unsigned char *) locsyms)) |
| 8679 | free (locsyms); | |
| 663a1470 | 8680 | return ret; |
| 102890f0 | 8681 | } |
| 411e1bfb | 8682 | |
| 102890f0 AM |
8683 | if (h != NULL) |
| 8684 | { | |
| 766bc656 AM |
8685 | if (h->root.type == bfd_link_hash_defined |
| 8686 | || h->root.type == bfd_link_hash_defweak) | |
| 8687 | value = h->root.u.def.value; | |
| 8688 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8689 | value = 0; | |
| 8690 | else | |
| 663a1470 AM |
8691 | { |
| 8692 | found_tls_get_addr_arg = 0; | |
| 8693 | continue; | |
| 8694 | } | |
| 102890f0 AM |
8695 | } |
| 8696 | else | |
| 8697 | /* Symbols referenced by TLS relocs must be of type | |
| 8698 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8699 | value = sym->st_value; | |
| 8700 | ||
| 8701 | ok_tprel = FALSE; | |
| 8702 | is_local = FALSE; | |
| 8703 | if (h == NULL | |
| 8704 | || !h->def_dynamic) | |
| 8705 | { | |
| 8706 | is_local = TRUE; | |
| 766bc656 AM |
8707 | if (h != NULL |
| 8708 | && h->root.type == bfd_link_hash_undefweak) | |
| 8709 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8710 | else if (sym_sec != NULL |
| 8711 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8712 | { |
| 8713 | value += sym_sec->output_offset; | |
| 8714 | value += sym_sec->output_section->vma; | |
| 8715 | value -= htab->elf.tls_sec->vma; | |
| 8716 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8717 | < (bfd_vma) 1 << 32); | |
| 8718 | } | |
| 102890f0 | 8719 | } |
| 951fd09b | 8720 | |
| 102890f0 | 8721 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8722 | /* If this section has old-style __tls_get_addr calls |
| 8723 | without marker relocs, then check that each | |
| 8724 | __tls_get_addr call reloc is preceded by a reloc | |
| 8725 | that conceivably belongs to the __tls_get_addr arg | |
| 8726 | setup insn. If we don't find matching arg setup | |
| 8727 | relocs, don't do any tls optimization. */ | |
| 8728 | if (pass == 0 | |
| 8729 | && sec->has_tls_get_addr_call | |
| 8730 | && h != NULL | |
| 8731 | && (h == &htab->tls_get_addr->elf | |
| 8732 | || h == &htab->tls_get_addr_fd->elf) | |
| 8733 | && !found_tls_get_addr_arg | |
| 8734 | && is_branch_reloc (r_type)) | |
| 8735 | { | |
| 25f53a85 | 8736 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8737 | "TLS optimization disabled\n"), |
| 8738 | ibfd, sec, rel->r_offset); | |
| 8739 | ret = TRUE; | |
| 8740 | goto err_free_rel; | |
| 8741 | } | |
| 8742 | ||
| 8743 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8744 | switch (r_type) |
| 8745 | { | |
| 8746 | case R_PPC64_GOT_TLSLD16: | |
| 8747 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8748 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8749 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8750 | /* Fall through. */ |
| 102890f0 AM |
8751 | |
| 8752 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8753 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8754 | /* These relocs should never be against a symbol | |
| 8755 | defined in a shared lib. Leave them alone if | |
| 8756 | that turns out to be the case. */ | |
| 8757 | if (!is_local) | |
| 8758 | continue; | |
| 411e1bfb | 8759 | |
| 102890f0 | 8760 | /* LD -> LE */ |
| 411e1bfb | 8761 | tls_set = 0; |
| 102890f0 AM |
8762 | tls_clear = TLS_LD; |
| 8763 | tls_type = TLS_TLS | TLS_LD; | |
| 8764 | break; | |
| 411e1bfb | 8765 | |
| 102890f0 AM |
8766 | case R_PPC64_GOT_TLSGD16: |
| 8767 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8768 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8769 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8770 | /* Fall through. */ |
| 102890f0 AM |
8771 | |
| 8772 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8773 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8774 | if (ok_tprel) | |
| 8775 | /* GD -> LE */ | |
| 411e1bfb | 8776 | tls_set = 0; |
| 102890f0 AM |
8777 | else |
| 8778 | /* GD -> IE */ | |
| 8779 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8780 | tls_clear = TLS_GD; | |
| 8781 | tls_type = TLS_TLS | TLS_GD; | |
| 8782 | break; | |
| 8783 | ||
| 8784 | case R_PPC64_GOT_TPREL16_DS: | |
| 8785 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8786 | case R_PPC64_GOT_TPREL16_HI: | |
| 8787 | case R_PPC64_GOT_TPREL16_HA: | |
| 8788 | if (ok_tprel) | |
| 8789 | { | |
| 8790 | /* IE -> LE */ | |
| 8791 | tls_set = 0; | |
| 8792 | tls_clear = TLS_TPREL; | |
| 8793 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8794 | break; | |
| 8795 | } | |
| 411e1bfb AM |
8796 | continue; |
| 8797 | ||
| 727fc41e AM |
8798 | case R_PPC64_TLSGD: |
| 8799 | case R_PPC64_TLSLD: | |
| 23cedd1d AM |
8800 | if (rel + 1 < relend |
| 8801 | && is_plt_seq_reloc (ELF64_R_TYPE (rel[1].r_info))) | |
| 8802 | { | |
| 8803 | if (pass != 0 | |
| 8804 | && ELF64_R_TYPE (rel[1].r_info) != R_PPC64_PLTSEQ) | |
| 8805 | { | |
| 8806 | r_symndx = ELF64_R_SYM (rel[1].r_info); | |
| 8807 | if (!get_sym_h (&h, NULL, NULL, NULL, &locsyms, | |
| 8808 | r_symndx, ibfd)) | |
| 8809 | goto err_free_rel; | |
| 8810 | if (h != NULL) | |
| 8811 | { | |
| 8812 | struct plt_entry *ent = NULL; | |
| 8813 | ||
| 8814 | for (ent = h->plt.plist; | |
| 8815 | ent != NULL; | |
| 8816 | ent = ent->next) | |
| 8817 | if (ent->addend == rel[1].r_addend) | |
| 8818 | break; | |
| 8819 | ||
| 8820 | if (ent != NULL | |
| 8821 | && ent->plt.refcount > 0) | |
| 8822 | ent->plt.refcount -= 1; | |
| 8823 | } | |
| 8824 | } | |
| 8825 | continue; | |
| 8826 | } | |
| 663a1470 | 8827 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8828 | /* Fall through. */ |
| 663a1470 AM |
8829 | |
| 8830 | case R_PPC64_TLS: | |
| 8831 | case R_PPC64_TOC16: | |
| 8832 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8833 | if (sym_sec == NULL || sym_sec != toc) |
| 8834 | continue; | |
| 8835 | ||
| 8836 | /* Mark this toc entry as referenced by a TLS | |
| 8837 | code sequence. We can do that now in the | |
| 8838 | case of R_PPC64_TLS, and after checking for | |
| 8839 | tls_get_addr for the TOC16 relocs. */ | |
| 8840 | if (toc_ref == NULL) | |
| 663a1470 AM |
8841 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8842 | if (toc_ref == NULL) | |
| 8843 | goto err_free_rel; | |
| 8844 | ||
| 102890f0 AM |
8845 | if (h != NULL) |
| 8846 | value = h->root.u.def.value; | |
| 8847 | else | |
| 8848 | value = sym->st_value; | |
| 8849 | value += rel->r_addend; | |
| 73242275 AM |
8850 | if (value % 8 != 0) |
| 8851 | continue; | |
| 8852 | BFD_ASSERT (value < toc->size | |
| 8853 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8854 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8855 | if (r_type == R_PPC64_TLS |
| 8856 | || r_type == R_PPC64_TLSGD | |
| 8857 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8858 | { |
| 8859 | toc_ref[toc_ref_index] = 1; | |
| 8860 | continue; | |
| 8861 | } | |
| 8862 | ||
| 8863 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8864 | continue; | |
| 8865 | ||
| 8866 | tls_set = 0; | |
| 8867 | tls_clear = 0; | |
| 8868 | expecting_tls_get_addr = 2; | |
| 8869 | break; | |
| 8870 | ||
| 8871 | case R_PPC64_TPREL64: | |
| 8872 | if (pass == 0 | |
| 8873 | || sec != toc | |
| 8874 | || toc_ref == NULL | |
| 663a1470 | 8875 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8876 | continue; |
| 8877 | if (ok_tprel) | |
| 8878 | { | |
| 8879 | /* IE -> LE */ | |
| 8880 | tls_set = TLS_EXPLICIT; | |
| 8881 | tls_clear = TLS_TPREL; | |
| 8882 | break; | |
| 8883 | } | |
| 8884 | continue; | |
| 8885 | ||
| 8886 | case R_PPC64_DTPMOD64: | |
| 8887 | if (pass == 0 | |
| 8888 | || sec != toc | |
| 8889 | || toc_ref == NULL | |
| 663a1470 | 8890 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8891 | continue; |
| 8892 | if (rel + 1 < relend | |
| 8893 | && (rel[1].r_info | |
| 8894 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8895 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8896 | { | |
| 8897 | if (ok_tprel) | |
| 8898 | /* GD -> LE */ | |
| 8899 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8900 | else | |
| 8901 | /* GD -> IE */ | |
| 8902 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8903 | tls_clear = TLS_GD; | |
| 8904 | } | |
| 8905 | else | |
| 8906 | { | |
| 8907 | if (!is_local) | |
| 8908 | continue; | |
| 8909 | ||
| 8910 | /* LD -> LE */ | |
| 8911 | tls_set = TLS_EXPLICIT; | |
| 8912 | tls_clear = TLS_LD; | |
| 8913 | } | |
| 8914 | break; | |
| 8915 | ||
| 8916 | default: | |
| 8917 | continue; | |
| 8918 | } | |
| 8919 | ||
| 8920 | if (pass == 0) | |
| 8921 | { | |
| 727fc41e AM |
8922 | if (!expecting_tls_get_addr |
| 8923 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8924 | continue; |
| 8925 | ||
| 3a71aa26 AM |
8926 | if (rel + 1 < relend |
| 8927 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8928 | htab->tls_get_addr, | |
| 8929 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8930 | { |
| 3a71aa26 | 8931 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8932 | { |
| 3a71aa26 | 8933 | /* Check for toc tls entries. */ |
| f961d9dd | 8934 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8935 | int retval; |
| 8936 | ||
| 8937 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8938 | &locsyms, | |
| 8939 | rel, ibfd); | |
| 8940 | if (retval == 0) | |
| 8941 | goto err_free_rel; | |
| 663a1470 AM |
8942 | if (toc_tls != NULL) |
| 8943 | { | |
| 37da22e5 AM |
8944 | if ((*toc_tls & TLS_TLS) != 0 |
| 8945 | && ((*toc_tls & (TLS_GD | TLS_LD)) != 0)) | |
| 663a1470 AM |
8946 | found_tls_get_addr_arg = 1; |
| 8947 | if (retval > 1) | |
| 8948 | toc_ref[toc_ref_index] = 1; | |
| 8949 | } | |
| 102890f0 | 8950 | } |
| 3a71aa26 | 8951 | continue; |
| 102890f0 AM |
8952 | } |
| 8953 | ||
| 102890f0 AM |
8954 | /* Uh oh, we didn't find the expected call. We |
| 8955 | could just mark this symbol to exclude it | |
| 8956 | from tls optimization but it's safer to skip | |
| 663a1470 | 8957 | the entire optimization. */ |
| 695344c0 | 8958 | /* xgettext:c-format */ |
| 25f53a85 | 8959 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8960 | "TLS optimization disabled\n"), |
| 8961 | ibfd, sec, rel->r_offset); | |
| 8962 | ret = TRUE; | |
| 8963 | goto err_free_rel; | |
| 102890f0 AM |
8964 | } |
| 8965 | ||
| 37da22e5 AM |
8966 | /* If we don't have old-style __tls_get_addr calls |
| 8967 | without TLSGD/TLSLD marker relocs, and we haven't | |
| 8968 | found a new-style __tls_get_addr call with a | |
| 8969 | marker for this symbol, then we either have a | |
| 8970 | broken object file or an -mlongcall style | |
| 8971 | indirect call to __tls_get_addr without a marker. | |
| 8972 | Disable optimization in this case. */ | |
| 8973 | if ((tls_clear & (TLS_GD | TLS_LD)) != 0 | |
| 8974 | && (tls_set & TLS_EXPLICIT) == 0 | |
| 8975 | && !sec->has_tls_get_addr_call | |
| 8976 | && ((*tls_mask & (TLS_TLS | TLS_MARK)) | |
| 8977 | != (TLS_TLS | TLS_MARK))) | |
| 8978 | continue; | |
| 8979 | ||
| 23cedd1d | 8980 | if (expecting_tls_get_addr) |
| 102890f0 | 8981 | { |
| 23cedd1d AM |
8982 | struct plt_entry *ent = NULL; |
| 8983 | ||
| 8984 | if (htab->tls_get_addr != NULL) | |
| 8985 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8986 | ent != NULL; | |
| 8987 | ent = ent->next) | |
| 8988 | if (ent->addend == 0) | |
| 102890f0 | 8989 | break; |
| 411e1bfb | 8990 | |
| 23cedd1d AM |
8991 | if (ent == NULL && htab->tls_get_addr_fd != NULL) |
| 8992 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8993 | ent != NULL; | |
| 8994 | ent = ent->next) | |
| 8995 | if (ent->addend == 0) | |
| 102890f0 | 8996 | break; |
| 23cedd1d AM |
8997 | |
| 8998 | if (ent != NULL | |
| 8999 | && ent->plt.refcount > 0) | |
| 9000 | ent->plt.refcount -= 1; | |
| 102890f0 | 9001 | } |
| 411e1bfb | 9002 | |
| 102890f0 | 9003 | if (tls_clear == 0) |
| 30038c59 AM |
9004 | continue; |
| 9005 | ||
| 102890f0 AM |
9006 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 9007 | { | |
| 9008 | struct got_entry *ent; | |
| 411e1bfb | 9009 | |
| 102890f0 AM |
9010 | /* Adjust got entry for this reloc. */ |
| 9011 | if (h != NULL) | |
| 9012 | ent = h->got.glist; | |
| 9013 | else | |
| 9014 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 9015 | |
| 102890f0 AM |
9016 | for (; ent != NULL; ent = ent->next) |
| 9017 | if (ent->addend == rel->r_addend | |
| 9018 | && ent->owner == ibfd | |
| 9019 | && ent->tls_type == tls_type) | |
| 9020 | break; | |
| 9021 | if (ent == NULL) | |
| 9022 | abort (); | |
| 411e1bfb | 9023 | |
| 102890f0 AM |
9024 | if (tls_set == 0) |
| 9025 | { | |
| 9026 | /* We managed to get rid of a got entry. */ | |
| 9027 | if (ent->got.refcount > 0) | |
| 9028 | ent->got.refcount -= 1; | |
| 9029 | } | |
| 9030 | } | |
| 9031 | else | |
| 9032 | { | |
| 9033 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 9034 | we'll lose one or two dyn relocs. */ | |
| 9035 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 9036 | NULL, h, sym)) |
| 102890f0 | 9037 | return FALSE; |
| 411e1bfb | 9038 | |
| 102890f0 AM |
9039 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 9040 | { | |
| 9041 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 9042 | NULL, h, sym)) |
| 102890f0 AM |
9043 | return FALSE; |
| 9044 | } | |
| 9045 | } | |
| 411e1bfb | 9046 | |
| 102890f0 AM |
9047 | *tls_mask |= tls_set; |
| 9048 | *tls_mask &= ~tls_clear; | |
| 9049 | } | |
| 8c1d1bb8 | 9050 | |
| 102890f0 AM |
9051 | if (elf_section_data (sec)->relocs != relstart) |
| 9052 | free (relstart); | |
| 9053 | } | |
| 411e1bfb | 9054 | |
| 663a1470 AM |
9055 | if (locsyms != NULL |
| 9056 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 9057 | { | |
| 9058 | if (!info->keep_memory) | |
| 9059 | free (locsyms); | |
| 9060 | else | |
| 9061 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 9062 | } | |
| 9063 | } | |
| 411e1bfb | 9064 | |
| 663a1470 AM |
9065 | if (toc_ref != NULL) |
| 9066 | free (toc_ref); | |
| 9a23f96e | 9067 | htab->do_tls_opt = 1; |
| b34976b6 | 9068 | return TRUE; |
| 1e2f5b6e | 9069 | } |
| b34976b6 | 9070 | |
| c5614fa4 AM |
9071 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 9072 | the values of any global symbols in a toc section that has been | |
| 9073 | edited. Globals in toc sections should be a rarity, so this function | |
| 9074 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 9075 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
9076 | |
| 9077 | struct adjust_toc_info | |
| 9078 | { | |
| 9079 | asection *toc; | |
| 9080 | unsigned long *skip; | |
| 9081 | bfd_boolean global_toc_syms; | |
| 9082 | }; | |
| 9083 | ||
| ba761f19 AM |
9084 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 9085 | ||
| c5614fa4 AM |
9086 | static bfd_boolean |
| 9087 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 9088 | { | |
| 9089 | struct ppc_link_hash_entry *eh; | |
| 9090 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 9091 | unsigned long i; |
| c5614fa4 | 9092 | |
| c5614fa4 AM |
9093 | if (h->root.type != bfd_link_hash_defined |
| 9094 | && h->root.type != bfd_link_hash_defweak) | |
| 9095 | return TRUE; | |
| 9096 | ||
| 9097 | eh = (struct ppc_link_hash_entry *) h; | |
| 9098 | if (eh->adjust_done) | |
| 9099 | return TRUE; | |
| 9100 | ||
| 9101 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 9102 | { | |
| 854b41e7 AM |
9103 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 9104 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 9105 | else |
| 854b41e7 AM |
9106 | i = eh->elf.root.u.def.value >> 3; |
| 9107 | ||
| ba761f19 | 9108 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 9109 | { |
| 4eca0228 | 9110 | _bfd_error_handler |
| 854b41e7 AM |
9111 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 9112 | do | |
| 9113 | ++i; | |
| ba761f19 | 9114 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 9115 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 9116 | } |
| 854b41e7 AM |
9117 | |
| 9118 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
9119 | eh->adjust_done = 1; |
| 9120 | } | |
| 9121 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 9122 | toc_inf->global_toc_syms = TRUE; | |
| 9123 | ||
| 9124 | return TRUE; | |
| 9125 | } | |
| 9126 | ||
| 39eeab25 AM |
9127 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 9128 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
9129 | |
| 9130 | static bfd_boolean | |
| 39eeab25 | 9131 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 9132 | { |
| 39eeab25 AM |
9133 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 9134 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
9135 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 9136 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 9137 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 9138 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 9139 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 9140 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 9141 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 9142 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 9143 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 9144 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 9145 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 9146 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 9147 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
9148 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 9149 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 9150 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 9151 | defined for the reduced D field in psq_lu then those | |
| 9152 | will need testing too. */ | |
| 9153 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 9154 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 9155 | && (insn & 1) == 0) | |
| 9156 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 9157 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 9158 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 9159 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 9160 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 9161 | && (insn & 1) == 0)); | |
| 560c8763 AM |
9162 | } |
| 9163 | ||
| c5614fa4 AM |
9164 | /* Examine all relocs referencing .toc sections in order to remove |
| 9165 | unused .toc entries. */ | |
| 9166 | ||
| 9167 | bfd_boolean | |
| 33c0ec9d | 9168 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
9169 | { |
| 9170 | bfd *ibfd; | |
| 9171 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 9172 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 9173 | |
| 67f0cbdb | 9174 | htab->do_toc_opt = 1; |
| c5614fa4 | 9175 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 9176 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
9177 | { |
| 9178 | asection *toc, *sec; | |
| 9179 | Elf_Internal_Shdr *symtab_hdr; | |
| 9180 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 9181 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
9182 | unsigned long *skip, *drop; |
| 9183 | unsigned char *used; | |
| 9184 | unsigned char *keep, last, some_unused; | |
| 9185 | ||
| 854b41e7 AM |
9186 | if (!is_ppc64_elf (ibfd)) |
| 9187 | continue; | |
| 9188 | ||
| c5614fa4 AM |
9189 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 9190 | if (toc == NULL | |
| 92b7a70f | 9191 | || toc->size == 0 |
| dbaa2011 AM |
9192 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 9193 | || discarded_section (toc)) | |
| c5614fa4 AM |
9194 | continue; |
| 9195 | ||
| 425b145b | 9196 | toc_relocs = NULL; |
| c5614fa4 | 9197 | local_syms = NULL; |
| 0ffa91dd | 9198 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
9199 | |
| 9200 | /* Look at sections dropped from the final link. */ | |
| 9201 | skip = NULL; | |
| 9202 | relstart = NULL; | |
| 9203 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 9204 | { | |
| 9205 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9206 | || !discarded_section (sec) |
| c5614fa4 AM |
9207 | || get_opd_info (sec) |
| 9208 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9209 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9210 | continue; | |
| 9211 | ||
| 9212 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 9213 | if (relstart == NULL) | |
| 9214 | goto error_ret; | |
| 9215 | ||
| 9216 | /* Run through the relocs to see which toc entries might be | |
| 9217 | unused. */ | |
| 9218 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9219 | { | |
| 9220 | enum elf_ppc64_reloc_type r_type; | |
| 9221 | unsigned long r_symndx; | |
| 9222 | asection *sym_sec; | |
| 9223 | struct elf_link_hash_entry *h; | |
| 9224 | Elf_Internal_Sym *sym; | |
| 9225 | bfd_vma val; | |
| 9226 | ||
| 9227 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9228 | switch (r_type) | |
| 9229 | { | |
| 9230 | default: | |
| 9231 | continue; | |
| 9232 | ||
| 9233 | case R_PPC64_TOC16: | |
| 9234 | case R_PPC64_TOC16_LO: | |
| 9235 | case R_PPC64_TOC16_HI: | |
| 9236 | case R_PPC64_TOC16_HA: | |
| 9237 | case R_PPC64_TOC16_DS: | |
| 9238 | case R_PPC64_TOC16_LO_DS: | |
| 9239 | break; | |
| 9240 | } | |
| 9241 | ||
| 9242 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9243 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9244 | r_symndx, ibfd)) | |
| 9245 | goto error_ret; | |
| 9246 | ||
| 9247 | if (sym_sec != toc) | |
| 9248 | continue; | |
| 9249 | ||
| 9250 | if (h != NULL) | |
| 9251 | val = h->root.u.def.value; | |
| 9252 | else | |
| 9253 | val = sym->st_value; | |
| 9254 | val += rel->r_addend; | |
| 9255 | ||
| 9256 | if (val >= toc->size) | |
| 9257 | continue; | |
| 9258 | ||
| 9259 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 9260 | If not, don't mark as unused. */ | |
| 9261 | if (val & 7) | |
| 9262 | continue; | |
| 9263 | ||
| 9264 | if (skip == NULL) | |
| 9265 | { | |
| 854b41e7 | 9266 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
9267 | if (skip == NULL) |
| 9268 | goto error_ret; | |
| 9269 | } | |
| 9270 | ||
| ba761f19 | 9271 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
9272 | } |
| 9273 | ||
| 9274 | if (elf_section_data (sec)->relocs != relstart) | |
| 9275 | free (relstart); | |
| 9276 | } | |
| 9277 | ||
| ba761f19 AM |
9278 | /* For largetoc loads of address constants, we can convert |
| 9279 | . addis rx,2,addr@got@ha | |
| 9280 | . ld ry,addr@got@l(rx) | |
| 9281 | to | |
| 9282 | . addis rx,2,addr@toc@ha | |
| 9283 | . addi ry,rx,addr@toc@l | |
| 9284 | when addr is within 2G of the toc pointer. This then means | |
| 9285 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9286 | |
| ba761f19 AM |
9287 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9288 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9289 | && toc->reloc_count != 0) | |
| 9290 | { | |
| 9291 | /* Read toc relocs. */ | |
| 425b145b AM |
9292 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9293 | info->keep_memory); | |
| 9294 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9295 | goto error_ret; |
| 9296 | ||
| 425b145b | 9297 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9298 | { |
| 9299 | enum elf_ppc64_reloc_type r_type; | |
| 9300 | unsigned long r_symndx; | |
| 9301 | asection *sym_sec; | |
| 9302 | struct elf_link_hash_entry *h; | |
| 9303 | Elf_Internal_Sym *sym; | |
| 9304 | bfd_vma val, addr; | |
| 9305 | ||
| 9306 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9307 | if (r_type != R_PPC64_ADDR64) | |
| 9308 | continue; | |
| 9309 | ||
| 9310 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9311 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9312 | r_symndx, ibfd)) | |
| 9313 | goto error_ret; | |
| 9314 | ||
| 425b145b | 9315 | if (sym_sec == NULL |
| c27b8c2a | 9316 | || sym_sec->output_section == NULL |
| dbaa2011 | 9317 | || discarded_section (sym_sec)) |
| 425b145b AM |
9318 | continue; |
| 9319 | ||
| afe397ea | 9320 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9321 | continue; |
| 9322 | ||
| 9323 | if (h != NULL) | |
| bddc25c9 AM |
9324 | { |
| 9325 | if (h->type == STT_GNU_IFUNC) | |
| 9326 | continue; | |
| 9327 | val = h->root.u.def.value; | |
| 9328 | } | |
| ba761f19 | 9329 | else |
| bddc25c9 AM |
9330 | { |
| 9331 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9332 | continue; | |
| 9333 | val = sym->st_value; | |
| 9334 | } | |
| ba761f19 AM |
9335 | val += rel->r_addend; |
| 9336 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9337 | ||
| 9338 | /* We don't yet know the exact toc pointer value, but we | |
| 9339 | know it will be somewhere in the toc section. Don't | |
| 9340 | optimize if the difference from any possible toc | |
| 9341 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9342 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9343 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9344 | continue; | |
| 9345 | ||
| 9346 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9347 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9348 | continue; | |
| 9349 | ||
| 9350 | if (skip == NULL) | |
| 9351 | { | |
| 9352 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9353 | if (skip == NULL) | |
| 9354 | goto error_ret; | |
| 9355 | } | |
| 9356 | ||
| 9357 | skip[rel->r_offset >> 3] | |
| 425b145b | 9358 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9359 | } |
| ba761f19 AM |
9360 | } |
| 9361 | ||
| c5614fa4 AM |
9362 | if (skip == NULL) |
| 9363 | continue; | |
| 9364 | ||
| 9365 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9366 | if (used == NULL) | |
| 9367 | { | |
| 9368 | error_ret: | |
| 9369 | if (local_syms != NULL | |
| 9370 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9371 | free (local_syms); | |
| 9372 | if (sec != NULL | |
| 9373 | && relstart != NULL | |
| 9374 | && elf_section_data (sec)->relocs != relstart) | |
| 9375 | free (relstart); | |
| 425b145b AM |
9376 | if (toc_relocs != NULL |
| 9377 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9378 | free (toc_relocs); | |
| c5614fa4 AM |
9379 | if (skip != NULL) |
| 9380 | free (skip); | |
| 9381 | return FALSE; | |
| 9382 | } | |
| 9383 | ||
| 30038c59 AM |
9384 | /* Now check all kept sections that might reference the toc. |
| 9385 | Check the toc itself last. */ | |
| 9386 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9387 | : ibfd->sections); | |
| c5614fa4 | 9388 | sec != NULL; |
| c5614fa4 | 9389 | sec = (sec == toc ? NULL |
| c5614fa4 | 9390 | : sec->next == NULL ? toc |
| 30038c59 | 9391 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9392 | : sec->next)) |
| 9393 | { | |
| 9394 | int repeat; | |
| 9395 | ||
| 9396 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9397 | || discarded_section (sec) |
| c5614fa4 AM |
9398 | || get_opd_info (sec) |
| 9399 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9400 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9401 | continue; | |
| 9402 | ||
| 854b41e7 AM |
9403 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9404 | info->keep_memory); | |
| c5614fa4 | 9405 | if (relstart == NULL) |
| 2915c55b JK |
9406 | { |
| 9407 | free (used); | |
| 9408 | goto error_ret; | |
| 9409 | } | |
| c5614fa4 AM |
9410 | |
| 9411 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9412 | do |
| d4f1ee75 AM |
9413 | { |
| 9414 | repeat = 0; | |
| 9415 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9416 | { | |
| 9417 | enum elf_ppc64_reloc_type r_type; | |
| 9418 | unsigned long r_symndx; | |
| 9419 | asection *sym_sec; | |
| 9420 | struct elf_link_hash_entry *h; | |
| 9421 | Elf_Internal_Sym *sym; | |
| 9422 | bfd_vma val; | |
| 9423 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9424 | |
| d4f1ee75 AM |
9425 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9426 | switch (r_type) | |
| 9427 | { | |
| 9428 | default: | |
| 9429 | insn_check = no_check; | |
| 9430 | break; | |
| 98528052 | 9431 | |
| d4f1ee75 AM |
9432 | case R_PPC64_GOT_TLSLD16_HA: |
| 9433 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9434 | case R_PPC64_GOT_TPREL16_HA: | |
| 9435 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9436 | case R_PPC64_GOT16_HA: | |
| 9437 | case R_PPC64_TOC16_HA: | |
| 9438 | insn_check = check_ha; | |
| 9439 | break; | |
| 98528052 | 9440 | |
| d4f1ee75 AM |
9441 | case R_PPC64_GOT_TLSLD16_LO: |
| 9442 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9443 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9444 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9445 | case R_PPC64_GOT16_LO: | |
| 9446 | case R_PPC64_GOT16_LO_DS: | |
| 9447 | case R_PPC64_TOC16_LO: | |
| 9448 | case R_PPC64_TOC16_LO_DS: | |
| 9449 | insn_check = check_lo; | |
| 9450 | break; | |
| 9451 | } | |
| 560c8763 | 9452 | |
| d4f1ee75 AM |
9453 | if (insn_check != no_check) |
| 9454 | { | |
| 9455 | bfd_vma off = rel->r_offset & ~3; | |
| 9456 | unsigned char buf[4]; | |
| 9457 | unsigned int insn; | |
| c5614fa4 | 9458 | |
| d4f1ee75 AM |
9459 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9460 | { | |
| 9461 | free (used); | |
| 9462 | goto error_ret; | |
| 9463 | } | |
| 9464 | insn = bfd_get_32 (ibfd, buf); | |
| 9465 | if (insn_check == check_lo | |
| 39eeab25 | 9466 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9467 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9468 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9469 | { | |
| 9470 | char str[12]; | |
| 9471 | ||
| 9472 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9473 | sprintf (str, "%#08x", insn); | |
| 9474 | info->callbacks->einfo | |
| 695344c0 | 9475 | /* xgettext:c-format */ |
| 174d0a74 | 9476 | (_("%H: toc optimization is not supported for" |
| cf97bcb0 | 9477 | " %s instruction\n"), |
| d4f1ee75 AM |
9478 | ibfd, sec, rel->r_offset & ~3, str); |
| 9479 | } | |
| 9480 | } | |
| c5614fa4 | 9481 | |
| d4f1ee75 AM |
9482 | switch (r_type) |
| 9483 | { | |
| 9484 | case R_PPC64_TOC16: | |
| 9485 | case R_PPC64_TOC16_LO: | |
| 9486 | case R_PPC64_TOC16_HI: | |
| 9487 | case R_PPC64_TOC16_HA: | |
| 9488 | case R_PPC64_TOC16_DS: | |
| 9489 | case R_PPC64_TOC16_LO_DS: | |
| 9490 | /* In case we're taking addresses of toc entries. */ | |
| 9491 | case R_PPC64_ADDR64: | |
| 9492 | break; | |
| c5614fa4 | 9493 | |
| d4f1ee75 AM |
9494 | default: |
| 9495 | continue; | |
| 9496 | } | |
| c5614fa4 | 9497 | |
| d4f1ee75 AM |
9498 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9499 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9500 | r_symndx, ibfd)) | |
| 9501 | { | |
| 9502 | free (used); | |
| 9503 | goto error_ret; | |
| 9504 | } | |
| c5614fa4 | 9505 | |
| d4f1ee75 AM |
9506 | if (sym_sec != toc) |
| 9507 | continue; | |
| c5614fa4 | 9508 | |
| d4f1ee75 AM |
9509 | if (h != NULL) |
| 9510 | val = h->root.u.def.value; | |
| 9511 | else | |
| 9512 | val = sym->st_value; | |
| 9513 | val += rel->r_addend; | |
| ba761f19 | 9514 | |
| d4f1ee75 AM |
9515 | if (val >= toc->size) |
| 9516 | continue; | |
| ba761f19 | 9517 | |
| d4f1ee75 AM |
9518 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9519 | { | |
| 9520 | bfd_vma off; | |
| 9521 | unsigned char opc; | |
| 9522 | ||
| 9523 | switch (r_type) | |
| 9524 | { | |
| 9525 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9526 | break; |
| ba761f19 | 9527 | |
| d4f1ee75 AM |
9528 | case R_PPC64_TOC16_LO_DS: |
| 9529 | off = rel->r_offset; | |
| 9530 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9531 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9532 | off, 1)) | |
| 9533 | { | |
| 9534 | free (used); | |
| 9535 | goto error_ret; | |
| 9536 | } | |
| 9537 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9538 | break; | |
| 1a0670f3 | 9539 | /* Fall through. */ |
| ba761f19 | 9540 | |
| d4f1ee75 AM |
9541 | default: |
| 9542 | /* Wrong sort of reloc, or not a ld. We may | |
| 9543 | as well clear ref_from_discarded too. */ | |
| 9544 | skip[val >> 3] = 0; | |
| 9545 | } | |
| 9546 | } | |
| 9547 | ||
| 9548 | if (sec != toc) | |
| 9549 | used[val >> 3] = 1; | |
| 9550 | /* For the toc section, we only mark as used if this | |
| 9551 | entry itself isn't unused. */ | |
| 9552 | else if ((used[rel->r_offset >> 3] | |
| 9553 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9554 | && !used[val >> 3]) | |
| 9555 | { | |
| 9556 | /* Do all the relocs again, to catch reference | |
| 9557 | chains. */ | |
| 9558 | repeat = 1; | |
| 9559 | used[val >> 3] = 1; | |
| 9560 | } | |
| 9561 | } | |
| 9562 | } | |
| c5614fa4 | 9563 | while (repeat); |
| 854b41e7 AM |
9564 | |
| 9565 | if (elf_section_data (sec)->relocs != relstart) | |
| 9566 | free (relstart); | |
| c5614fa4 AM |
9567 | } |
| 9568 | ||
| 9569 | /* Merge the used and skip arrays. Assume that TOC | |
| 9570 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9571 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9572 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9573 | drop < skip + (toc->size + 7) / 8; | |
| 9574 | ++drop, ++keep) | |
| 9575 | { | |
| 9576 | if (*keep) | |
| 9577 | { | |
| ba761f19 AM |
9578 | *drop &= ~ref_from_discarded; |
| 9579 | if ((*drop & can_optimize) != 0) | |
| 9580 | some_unused = 1; | |
| c5614fa4 AM |
9581 | last = 0; |
| 9582 | } | |
| b140b010 | 9583 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9584 | { |
| 9585 | some_unused = 1; | |
| ba761f19 | 9586 | last = ref_from_discarded; |
| c5614fa4 AM |
9587 | } |
| 9588 | else | |
| 9589 | *drop = last; | |
| 9590 | } | |
| 9591 | ||
| 9592 | free (used); | |
| 9593 | ||
| 9594 | if (some_unused) | |
| 9595 | { | |
| 9596 | bfd_byte *contents, *src; | |
| 9597 | unsigned long off; | |
| d62b3684 | 9598 | Elf_Internal_Sym *sym; |
| ba761f19 | 9599 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9600 | |
| 9601 | /* Shuffle the toc contents, and at the same time convert the | |
| 9602 | skip array from booleans into offsets. */ | |
| 9603 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9604 | goto error_ret; | |
| 9605 | ||
| 9606 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9607 | ||
| 9608 | for (src = contents, off = 0, drop = skip; | |
| 9609 | src < contents + toc->size; | |
| 9610 | src += 8, ++drop) | |
| 9611 | { | |
| ba761f19 AM |
9612 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9613 | off += 8; | |
| c5614fa4 AM |
9614 | else if (off != 0) |
| 9615 | { | |
| 9616 | *drop = off; | |
| 9617 | memcpy (src - off, src, 8); | |
| 9618 | } | |
| 9619 | } | |
| 854b41e7 | 9620 | *drop = off; |
| c5614fa4 AM |
9621 | toc->rawsize = toc->size; |
| 9622 | toc->size = src - contents - off; | |
| 9623 | ||
| ba761f19 AM |
9624 | /* Adjust addends for relocs against the toc section sym, |
| 9625 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9626 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9627 | { | |
| 9628 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9629 | || discarded_section (sec)) |
| c5614fa4 AM |
9630 | continue; |
| 9631 | ||
| 9632 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9633 | info->keep_memory); |
| c5614fa4 AM |
9634 | if (relstart == NULL) |
| 9635 | goto error_ret; | |
| 9636 | ||
| 9637 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9638 | { | |
| 9639 | enum elf_ppc64_reloc_type r_type; | |
| 9640 | unsigned long r_symndx; | |
| 9641 | asection *sym_sec; | |
| 9642 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9643 | bfd_vma val; |
| c5614fa4 AM |
9644 | |
| 9645 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9646 | switch (r_type) | |
| 9647 | { | |
| 9648 | default: | |
| 9649 | continue; | |
| 9650 | ||
| 9651 | case R_PPC64_TOC16: | |
| 9652 | case R_PPC64_TOC16_LO: | |
| 9653 | case R_PPC64_TOC16_HI: | |
| 9654 | case R_PPC64_TOC16_HA: | |
| 9655 | case R_PPC64_TOC16_DS: | |
| 9656 | case R_PPC64_TOC16_LO_DS: | |
| 9657 | case R_PPC64_ADDR64: | |
| 9658 | break; | |
| 9659 | } | |
| 9660 | ||
| 9661 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9662 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9663 | r_symndx, ibfd)) | |
| 9664 | goto error_ret; | |
| 9665 | ||
| ba761f19 | 9666 | if (sym_sec != toc) |
| c5614fa4 AM |
9667 | continue; |
| 9668 | ||
| ba761f19 AM |
9669 | if (h != NULL) |
| 9670 | val = h->root.u.def.value; | |
| 9671 | else | |
| 9672 | { | |
| 9673 | val = sym->st_value; | |
| 9674 | if (val != 0) | |
| 9675 | local_toc_syms = TRUE; | |
| 9676 | } | |
| 9677 | ||
| 9678 | val += rel->r_addend; | |
| 854b41e7 AM |
9679 | |
| 9680 | if (val > toc->rawsize) | |
| 9681 | val = toc->rawsize; | |
| ba761f19 AM |
9682 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9683 | continue; | |
| 9684 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9685 | { | |
| 9686 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9687 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9688 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9689 | ||
| 9690 | switch (r_type) | |
| 9691 | { | |
| 9692 | case R_PPC64_TOC16_HA: | |
| 9693 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9694 | break; | |
| 9695 | ||
| 9696 | case R_PPC64_TOC16_LO_DS: | |
| 9697 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9698 | break; | |
| 9699 | ||
| 9700 | default: | |
| 28942f62 AM |
9701 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9702 | ppc_howto_init (); | |
| b140b010 | 9703 | info->callbacks->einfo |
| 695344c0 | 9704 | /* xgettext:c-format */ |
| 174d0a74 | 9705 | (_("%H: %s references " |
| b140b010 AM |
9706 | "optimized away TOC entry\n"), |
| 9707 | ibfd, sec, rel->r_offset, | |
| 9708 | ppc64_elf_howto_table[r_type]->name); | |
| 9709 | bfd_set_error (bfd_error_bad_value); | |
| 9710 | goto error_ret; | |
| ba761f19 AM |
9711 | } |
| 9712 | rel->r_addend = tocrel->r_addend; | |
| 9713 | elf_section_data (sec)->relocs = relstart; | |
| 9714 | continue; | |
| 9715 | } | |
| 9716 | ||
| 9717 | if (h != NULL || sym->st_value != 0) | |
| 9718 | continue; | |
| 854b41e7 AM |
9719 | |
| 9720 | rel->r_addend -= skip[val >> 3]; | |
| 9721 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9722 | } |
| 854b41e7 AM |
9723 | |
| 9724 | if (elf_section_data (sec)->relocs != relstart) | |
| 9725 | free (relstart); | |
| c5614fa4 AM |
9726 | } |
| 9727 | ||
| 9728 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9729 | but handle them anyway. */ | |
| df22d223 AM |
9730 | if (local_syms != NULL) |
| 9731 | for (sym = local_syms; | |
| 9732 | sym < local_syms + symtab_hdr->sh_info; | |
| 9733 | ++sym) | |
| 9734 | if (sym->st_value != 0 | |
| 9735 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9736 | { | |
| 9737 | unsigned long i; | |
| 854b41e7 | 9738 | |
| df22d223 AM |
9739 | if (sym->st_value > toc->rawsize) |
| 9740 | i = toc->rawsize >> 3; | |
| 9741 | else | |
| 9742 | i = sym->st_value >> 3; | |
| 854b41e7 | 9743 | |
| df22d223 AM |
9744 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9745 | { | |
| 9746 | if (local_toc_syms) | |
| 4eca0228 | 9747 | _bfd_error_handler |
| df22d223 AM |
9748 | (_("%s defined on removed toc entry"), |
| 9749 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9750 | do | |
| 9751 | ++i; | |
| 9752 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9753 | sym->st_value = (bfd_vma) i << 3; | |
| 9754 | } | |
| d62b3684 | 9755 | |
| df22d223 AM |
9756 | sym->st_value -= skip[i]; |
| 9757 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9758 | } | |
| c5614fa4 | 9759 | |
| 854b41e7 | 9760 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9761 | if (toc_inf.global_toc_syms) |
| 9762 | { | |
| 9763 | toc_inf.toc = toc; | |
| 9764 | toc_inf.skip = skip; | |
| 9765 | toc_inf.global_toc_syms = FALSE; | |
| 9766 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9767 | &toc_inf); | |
| 9768 | } | |
| 854b41e7 AM |
9769 | |
| 9770 | if (toc->reloc_count != 0) | |
| 9771 | { | |
| d4730f92 | 9772 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9773 | Elf_Internal_Rela *wrel; |
| 9774 | bfd_size_type sz; | |
| 9775 | ||
| 854b41e7 | 9776 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9777 | if (toc_relocs == NULL) |
| 9778 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9779 | info->keep_memory); | |
| 9780 | if (toc_relocs == NULL) | |
| 9781 | goto error_ret; | |
| 9782 | ||
| 425b145b AM |
9783 | wrel = toc_relocs; |
| 9784 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9785 | if ((skip[rel->r_offset >> 3] |
| 9786 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9787 | { |
| 9788 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9789 | wrel->r_info = rel->r_info; | |
| 9790 | wrel->r_addend = rel->r_addend; | |
| 9791 | ++wrel; | |
| 9792 | } | |
| 9793 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9794 | &local_syms, NULL, NULL)) | |
| 9795 | goto error_ret; | |
| 9796 | ||
| 425b145b AM |
9797 | elf_section_data (toc)->relocs = toc_relocs; |
| 9798 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9799 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9800 | sz = rel_hdr->sh_entsize; | |
| 9801 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9802 | } |
| c5614fa4 | 9803 | } |
| 28be611c AM |
9804 | else if (toc_relocs != NULL |
| 9805 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9806 | free (toc_relocs); |
| c5614fa4 AM |
9807 | |
| 9808 | if (local_syms != NULL | |
| 9809 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9810 | { | |
| 9811 | if (!info->keep_memory) | |
| 9812 | free (local_syms); | |
| 9813 | else | |
| 9814 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9815 | } | |
| 9816 | free (skip); | |
| 9817 | } | |
| 9818 | ||
| 9819 | return TRUE; | |
| 9820 | } | |
| 9821 | ||
| 1bbe0902 AM |
9822 | /* Return true iff input section I references the TOC using |
| 9823 | instructions limited to +/-32k offsets. */ | |
| 9824 | ||
| 9825 | bfd_boolean | |
| 9826 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9827 | { | |
| 9828 | return (is_ppc64_elf (i->owner) | |
| 9829 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9830 | } | |
| 9831 | ||
| 927be08e AM |
9832 | /* Allocate space for one GOT entry. */ |
| 9833 | ||
| 9834 | static void | |
| 9835 | allocate_got (struct elf_link_hash_entry *h, | |
| 9836 | struct bfd_link_info *info, | |
| 9837 | struct got_entry *gent) | |
| 9838 | { | |
| 9839 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9840 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9841 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9842 | ? 16 : 8); | |
| 9843 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9844 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9845 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9846 | ||
| 9847 | gent->got.offset = got->size; | |
| 9848 | got->size += entsize; | |
| 9849 | ||
| 19e08130 | 9850 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9851 | { |
| 33e44f2e | 9852 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9853 | htab->got_reli_size += rentsize; |
| 927be08e | 9854 | } |
| f15d0b54 AM |
9855 | else if (((bfd_link_pic (info) |
| 9856 | && !((gent->tls_type & TLS_TPREL) != 0 | |
| 9857 | && bfd_link_executable (info) | |
| 9858 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
| f0158f44 AM |
9859 | || (htab->elf.dynamic_sections_created |
| 9860 | && h->dynindx != -1 | |
| 9861 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9862 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9863 | { |
| 19e08130 | 9864 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9865 | relgot->size += rentsize; |
| 927be08e AM |
9866 | } |
| 9867 | } | |
| 9868 | ||
| 7865406b AM |
9869 | /* This function merges got entries in the same toc group. */ |
| 9870 | ||
| 9871 | static void | |
| 9872 | merge_got_entries (struct got_entry **pent) | |
| 9873 | { | |
| 9874 | struct got_entry *ent, *ent2; | |
| 9875 | ||
| 9876 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9877 | if (!ent->is_indirect) | |
| 9878 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9879 | if (!ent2->is_indirect | |
| 9880 | && ent2->addend == ent->addend | |
| 9881 | && ent2->tls_type == ent->tls_type | |
| 9882 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9883 | { | |
| 9884 | ent2->is_indirect = TRUE; | |
| 9885 | ent2->got.ent = ent; | |
| 9886 | } | |
| 9887 | } | |
| 9888 | ||
| 46434633 | 9889 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9890 | |
| 9891 | static bfd_boolean | |
| 46434633 AM |
9892 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9893 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9894 | { |
| 9895 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9896 | ||
| 9897 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9898 | && ((info->dynamic_undefined_weak != 0 |
| 9899 | && h->root.type == bfd_link_hash_undefweak) | |
| 9900 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9901 | && h->dynindx == -1 |
| 9902 | && !h->forced_local | |
| 9903 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9904 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9905 | return TRUE; | |
| 9906 | } | |
| 9907 | ||
| 65f38f15 AM |
9908 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9909 | dynamic relocs. */ | |
| 5bd4f169 | 9910 | |
| b34976b6 | 9911 | static bfd_boolean |
| 4ce794b7 | 9912 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9913 | { |
| 65f38f15 AM |
9914 | struct bfd_link_info *info; |
| 9915 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9916 | asection *s; |
| 65f38f15 | 9917 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9918 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9919 | |
| e92d460e | 9920 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9921 | return TRUE; |
| 5bd4f169 | 9922 | |
| 65f38f15 AM |
9923 | info = (struct bfd_link_info *) inf; |
| 9924 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9925 | if (htab == NULL) |
| 9926 | return FALSE; | |
| 5bd4f169 | 9927 | |
| 951fd09b AM |
9928 | eh = (struct ppc_link_hash_entry *) h; |
| 9929 | /* Run through the TLS GD got entries first if we're changing them | |
| 9930 | to TPREL. */ | |
| 37da22e5 | 9931 | if ((eh->tls_mask & (TLS_TLS | TLS_TPRELGD)) == (TLS_TLS | TLS_TPRELGD)) |
| 951fd09b AM |
9932 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9933 | if (gent->got.refcount > 0 | |
| 9934 | && (gent->tls_type & TLS_GD) != 0) | |
| 9935 | { | |
| 9936 | /* This was a GD entry that has been converted to TPREL. If | |
| 9937 | there happens to be a TPREL entry we can use that one. */ | |
| 9938 | struct got_entry *ent; | |
| 9939 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9940 | if (ent->got.refcount > 0 | |
| 9941 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9942 | && ent->addend == gent->addend |
| 9943 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9944 | { |
| 9945 | gent->got.refcount = 0; | |
| 9946 | break; | |
| 9947 | } | |
| 9948 | ||
| 9949 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9950 | if (gent->got.refcount != 0) | |
| 9951 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9952 | } | |
| 9953 | ||
| 7865406b AM |
9954 | /* Remove any list entry that won't generate a word in the GOT before |
| 9955 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9956 | entries. */ | |
| 0b8bcf0d AM |
9957 | pgent = &h->got.glist; |
| 9958 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9959 | if (gent->got.refcount > 0) |
| 7865406b AM |
9960 | { |
| 9961 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9962 | && !h->def_dynamic) | |
| 9963 | { | |
| 9964 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9965 | *pgent = gent->next; | |
| 9966 | } | |
| 9967 | else | |
| 9968 | pgent = &gent->next; | |
| 9969 | } | |
| 9970 | else | |
| 9971 | *pgent = gent->next; | |
| 9972 | ||
| 9973 | if (!htab->do_multi_toc) | |
| 9974 | merge_got_entries (&h->got.glist); | |
| 9975 | ||
| 9976 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9977 | if (!gent->is_indirect) | |
| 411e1bfb | 9978 | { |
| 46434633 AM |
9979 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9980 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9981 | return FALSE; |
| 65f38f15 | 9982 | |
| 0c8d6e5c | 9983 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9984 | abort (); |
| 0ffa91dd | 9985 | |
| 927be08e | 9986 | allocate_got (h, info, gent); |
| 411e1bfb | 9987 | } |
| 65f38f15 | 9988 | |
| 954b63d4 AM |
9989 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9990 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9991 | if (!htab->elf.dynamic_sections_created |
| 9992 | && h->type != STT_GNU_IFUNC) | |
| 9993 | eh->dyn_relocs = NULL; | |
| 9994 | ||
| 529fe20e AM |
9995 | /* Discard relocs on undefined symbols that must be local. */ |
| 9996 | else if (h->root.type == bfd_link_hash_undefined | |
| 9997 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9998 | eh->dyn_relocs = NULL; | |
| 9999 | ||
| 954b63d4 AM |
10000 | /* Also discard relocs on undefined weak syms with non-default |
| 10001 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 10002 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
10003 | eh->dyn_relocs = NULL; |
| 10004 | ||
| 8a2058b5 | 10005 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 10006 | { |
| 8a2058b5 AM |
10007 | struct elf_dyn_relocs *p, **pp; |
| 10008 | ||
| 57e7d118 AM |
10009 | /* In the shared -Bsymbolic case, discard space allocated for |
| 10010 | dynamic pc-relative relocs against symbols which turn out to | |
| 10011 | be defined in regular objects. For the normal shared case, | |
| 10012 | discard space for relocs that have become local due to symbol | |
| 10013 | visibility changes. */ | |
| 10014 | ||
| 10015 | if (bfd_link_pic (info)) | |
| 65f38f15 | 10016 | { |
| 57e7d118 AM |
10017 | /* Relocs that use pc_count are those that appear on a call |
| 10018 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 10019 | can be generated via assembly. We want calls to | |
| 10020 | protected symbols to resolve directly to the function | |
| 10021 | rather than going via the plt. If people want function | |
| 10022 | pointer comparisons to work as expected then they should | |
| 10023 | avoid writing weird assembly. */ | |
| 10024 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 10025 | { | |
| 57e7d118 AM |
10026 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 10027 | { | |
| 10028 | p->count -= p->pc_count; | |
| 10029 | p->pc_count = 0; | |
| 10030 | if (p->count == 0) | |
| 10031 | *pp = p->next; | |
| 10032 | else | |
| 10033 | pp = &p->next; | |
| 10034 | } | |
| 10035 | } | |
| 65f38f15 | 10036 | |
| 954b63d4 | 10037 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 10038 | { |
| 46434633 AM |
10039 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 10040 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 10041 | return FALSE; |
| 5bd4f169 | 10042 | } |
| 65f38f15 | 10043 | } |
| 529fe20e | 10044 | else if (ELIMINATE_COPY_RELOCS && h->type != STT_GNU_IFUNC) |
| 57e7d118 | 10045 | { |
| 8a2058b5 | 10046 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
10047 | symbols which turn out to need copy relocs or are not |
| 10048 | dynamic. */ | |
| 529fe20e AM |
10049 | if (h->dynamic_adjusted |
| 10050 | && !h->def_regular | |
| 10051 | && !ELF_COMMON_DEF_P (h)) | |
| f0158f44 | 10052 | { |
| 46434633 AM |
10053 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 10054 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 10055 | return FALSE; |
| dfbb6ac9 | 10056 | |
| f0158f44 AM |
10057 | if (h->dynindx == -1) |
| 10058 | eh->dyn_relocs = NULL; | |
| 10059 | } | |
| 10060 | else | |
| 8a2058b5 | 10061 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
10062 | } |
| 10063 | ||
| 10064 | /* Finally, allocate space. */ | |
| 10065 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 10066 | { | |
| 10067 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 10068 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 10069 | sreloc = htab->elf.irelplt; | |
| 10070 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 10071 | } |
| 65f38f15 | 10072 | } |
| 57e7d118 | 10073 | |
| 2d7ad24e AM |
10074 | /* We might need a PLT entry when the symbol |
| 10075 | a) is dynamic, or | |
| 10076 | b) is an ifunc, or | |
| 10077 | c) has plt16 relocs and has been processed by adjust_dynamic_symbol, or | |
| 10078 | d) has plt16 relocs and we are linking statically. */ | |
| 10079 | if ((htab->elf.dynamic_sections_created && h->dynindx != -1) | |
| 10080 | || h->type == STT_GNU_IFUNC | |
| 10081 | || (h->needs_plt && h->dynamic_adjusted) | |
| 10082 | || (h->needs_plt | |
| 10083 | && h->def_regular | |
| 10084 | && !htab->elf.dynamic_sections_created | |
| 3e04d765 | 10085 | && !htab->can_convert_all_inline_plt |
| 2d7ad24e AM |
10086 | && (((struct ppc_link_hash_entry *) h)->tls_mask |
| 10087 | & (TLS_TLS | PLT_KEEP)) == PLT_KEEP)) | |
| 65f38f15 | 10088 | { |
| 57e7d118 AM |
10089 | struct plt_entry *pent; |
| 10090 | bfd_boolean doneone = FALSE; | |
| 10091 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 10092 | if (pent->plt.refcount > 0) | |
| 10093 | { | |
| 10094 | if (!htab->elf.dynamic_sections_created | |
| 10095 | || h->dynindx == -1) | |
| 10096 | { | |
| 2d7ad24e AM |
10097 | if (h->type == STT_GNU_IFUNC) |
| 10098 | { | |
| 10099 | s = htab->elf.iplt; | |
| 10100 | pent->plt.offset = s->size; | |
| 10101 | s->size += PLT_ENTRY_SIZE (htab); | |
| 10102 | s = htab->elf.irelplt; | |
| 10103 | } | |
| 10104 | else | |
| 10105 | { | |
| 10106 | s = htab->pltlocal; | |
| 10107 | pent->plt.offset = s->size; | |
| 10108 | s->size += LOCAL_PLT_ENTRY_SIZE (htab); | |
| 10109 | s = bfd_link_pic (info) ? htab->relpltlocal : NULL; | |
| 10110 | } | |
| 57e7d118 AM |
10111 | } |
| 10112 | else | |
| 10113 | { | |
| 10114 | /* If this is the first .plt entry, make room for the special | |
| 10115 | first entry. */ | |
| 10116 | s = htab->elf.splt; | |
| 10117 | if (s->size == 0) | |
| 10118 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 10119 | |
| 57e7d118 | 10120 | pent->plt.offset = s->size; |
| 65f38f15 | 10121 | |
| 57e7d118 AM |
10122 | /* Make room for this entry. */ |
| 10123 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 10124 | |
| 57e7d118 AM |
10125 | /* Make room for the .glink code. */ |
| 10126 | s = htab->glink; | |
| 10127 | if (s->size == 0) | |
| 9e390558 | 10128 | s->size += GLINK_PLTRESOLVE_SIZE (htab); |
| 57e7d118 AM |
10129 | if (htab->opd_abi) |
| 10130 | { | |
| 10131 | /* We need bigger stubs past index 32767. */ | |
| 9e390558 | 10132 | if (s->size >= GLINK_PLTRESOLVE_SIZE (htab) + 32768*2*4) |
| 57e7d118 AM |
10133 | s->size += 4; |
| 10134 | s->size += 2*4; | |
| 10135 | } | |
| 10136 | else | |
| 10137 | s->size += 4; | |
| 65f38f15 | 10138 | |
| 57e7d118 AM |
10139 | /* We also need to make an entry in the .rela.plt section. */ |
| 10140 | s = htab->elf.srelplt; | |
| 10141 | } | |
| 2d7ad24e AM |
10142 | if (s != NULL) |
| 10143 | s->size += sizeof (Elf64_External_Rela); | |
| 57e7d118 AM |
10144 | doneone = TRUE; |
| 10145 | } | |
| 10146 | else | |
| 10147 | pent->plt.offset = (bfd_vma) -1; | |
| 10148 | if (!doneone) | |
| 10149 | { | |
| 10150 | h->plt.plist = NULL; | |
| 10151 | h->needs_plt = 0; | |
| 10152 | } | |
| 65f38f15 | 10153 | } |
| 57e7d118 | 10154 | else |
| 65f38f15 | 10155 | { |
| 57e7d118 AM |
10156 | h->plt.plist = NULL; |
| 10157 | h->needs_plt = 0; | |
| 65f38f15 AM |
10158 | } |
| 10159 | ||
| b34976b6 | 10160 | return TRUE; |
| 65f38f15 AM |
10161 | } |
| 10162 | ||
| 9e390558 AM |
10163 | #define PPC_LO(v) ((v) & 0xffff) |
| 10164 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10165 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10166 | ||
| a345bc8d AM |
10167 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 10168 | to set up space for global entry stubs. These are put in glink, | |
| 10169 | after the branch table. */ | |
| 65f38f15 | 10170 | |
| b34976b6 | 10171 | static bfd_boolean |
| a345bc8d | 10172 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 10173 | { |
| a345bc8d AM |
10174 | struct bfd_link_info *info; |
| 10175 | struct ppc_link_hash_table *htab; | |
| 10176 | struct plt_entry *pent; | |
| 9e390558 | 10177 | asection *s, *plt; |
| 65f38f15 | 10178 | |
| a345bc8d AM |
10179 | if (h->root.type == bfd_link_hash_indirect) |
| 10180 | return TRUE; | |
| 65f38f15 | 10181 | |
| a345bc8d AM |
10182 | if (!h->pointer_equality_needed) |
| 10183 | return TRUE; | |
| 65f38f15 | 10184 | |
| a345bc8d AM |
10185 | if (h->def_regular) |
| 10186 | return TRUE; | |
| 65f38f15 | 10187 | |
| a345bc8d AM |
10188 | info = inf; |
| 10189 | htab = ppc_hash_table (info); | |
| 10190 | if (htab == NULL) | |
| 10191 | return FALSE; | |
| 10192 | ||
| 9e390558 AM |
10193 | s = htab->global_entry; |
| 10194 | plt = htab->elf.splt; | |
| a345bc8d AM |
10195 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 10196 | if (pent->plt.offset != (bfd_vma) -1 | |
| 10197 | && pent->addend == 0) | |
| 10198 | { | |
| afe397ea AM |
10199 | /* For ELFv2, if this symbol is not defined in a regular file |
| 10200 | and we are not generating a shared library or pie, then we | |
| 10201 | need to define the symbol in the executable on a call stub. | |
| 10202 | This is to avoid text relocations. */ | |
| 9e390558 AM |
10203 | bfd_vma off, stub_align, stub_off, stub_size; |
| 10204 | unsigned int align_power; | |
| 10205 | ||
| 10206 | stub_size = 16; | |
| 10207 | stub_off = s->size; | |
| 10208 | if (htab->params->plt_stub_align >= 0) | |
| 10209 | align_power = htab->params->plt_stub_align; | |
| 10210 | else | |
| 10211 | align_power = -htab->params->plt_stub_align; | |
| 10212 | /* Setting section alignment is delayed until we know it is | |
| 10213 | non-empty. Otherwise the .text output section will be | |
| 10214 | aligned at least to plt_stub_align even when no global | |
| 10215 | entry stubs are needed. */ | |
| 10216 | if (s->alignment_power < align_power) | |
| 10217 | s->alignment_power = align_power; | |
| 10218 | stub_align = (bfd_vma) 1 << align_power; | |
| 10219 | if (htab->params->plt_stub_align >= 0 | |
| 10220 | || ((((stub_off + stub_size - 1) & -stub_align) | |
| 10221 | - (stub_off & -stub_align)) | |
| 10222 | > ((stub_size - 1) & -stub_align))) | |
| 10223 | stub_off = (stub_off + stub_align - 1) & -stub_align; | |
| 10224 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; | |
| 10225 | off -= stub_off + s->output_offset + s->output_section->vma; | |
| 10226 | /* Note that for --plt-stub-align negative we have a possible | |
| 10227 | dependency between stub offset and size. Break that | |
| 10228 | dependency by assuming the max stub size when calculating | |
| 10229 | the stub offset. */ | |
| 10230 | if (PPC_HA (off) == 0) | |
| 10231 | stub_size -= 4; | |
| 8a2058b5 | 10232 | h->root.type = bfd_link_hash_defined; |
| afe397ea | 10233 | h->root.u.def.section = s; |
| 9e390558 AM |
10234 | h->root.u.def.value = stub_off; |
| 10235 | s->size = stub_off + stub_size; | |
| a345bc8d AM |
10236 | break; |
| 10237 | } | |
| 10238 | return TRUE; | |
| 10239 | } | |
| 10240 | ||
| 10241 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 10242 | read-only sections. */ | |
| 10243 | ||
| 10244 | static bfd_boolean | |
| 98bbb1b8 | 10245 | maybe_set_textrel (struct elf_link_hash_entry *h, void *inf) |
| a345bc8d | 10246 | { |
| 98bbb1b8 AM |
10247 | asection *sec; |
| 10248 | ||
| a345bc8d AM |
10249 | if (h->root.type == bfd_link_hash_indirect) |
| 10250 | return TRUE; | |
| 10251 | ||
| 98bbb1b8 AM |
10252 | sec = readonly_dynrelocs (h); |
| 10253 | if (sec != NULL) | |
| a345bc8d | 10254 | { |
| 98bbb1b8 AM |
10255 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| 10256 | ||
| 10257 | info->flags |= DF_TEXTREL; | |
| 10258 | info->callbacks->minfo | |
| c1c8c1ef | 10259 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
| 63c1f59d | 10260 | sec->owner, h->root.root.string, sec); |
| a345bc8d AM |
10261 | |
| 10262 | /* Not an error, just cut short the traversal. */ | |
| 10263 | return FALSE; | |
| 65f38f15 | 10264 | } |
| b34976b6 | 10265 | return TRUE; |
| 65f38f15 AM |
10266 | } |
| 10267 | ||
| 10268 | /* Set the sizes of the dynamic sections. */ | |
| 10269 | ||
| b34976b6 | 10270 | static bfd_boolean |
| ee67d69a | 10271 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 10272 | struct bfd_link_info *info) |
| 65f38f15 AM |
10273 | { |
| 10274 | struct ppc_link_hash_table *htab; | |
| 10275 | bfd *dynobj; | |
| 10276 | asection *s; | |
| b34976b6 | 10277 | bfd_boolean relocs; |
| 65f38f15 | 10278 | bfd *ibfd; |
| 7865406b | 10279 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
10280 | |
| 10281 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
10282 | if (htab == NULL) |
| 10283 | return FALSE; | |
| 10284 | ||
| 65f38f15 AM |
10285 | dynobj = htab->elf.dynobj; |
| 10286 | if (dynobj == NULL) | |
| 10287 | abort (); | |
| 10288 | ||
| 10289 | if (htab->elf.dynamic_sections_created) | |
| 10290 | { | |
| 10291 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 10292 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 10293 | { |
| 3d4d4302 | 10294 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
10295 | if (s == NULL) |
| 10296 | abort (); | |
| eea6121a | 10297 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
10298 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 10299 | } | |
| 10300 | } | |
| 10301 | ||
| 10302 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 10303 | relocs. */ | |
| c72f2fb2 | 10304 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 10305 | { |
| 411e1bfb AM |
10306 | struct got_entry **lgot_ents; |
| 10307 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
10308 | struct plt_entry **local_plt; |
| 10309 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10310 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10311 | bfd_size_type locsymcount; |
| 10312 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10313 | |
| 0c8d6e5c | 10314 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10315 | continue; |
| 10316 | ||
| 10317 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10318 | { | |
| 19e08130 | 10319 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10320 | |
| 6edfbbad | 10321 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10322 | { |
| ec338859 AM |
10323 | if (!bfd_is_abs_section (p->sec) |
| 10324 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10325 | { | |
| 10326 | /* Input section has been discarded, either because | |
| 10327 | it is a copy of a linkonce section or due to | |
| 10328 | linker script /DISCARD/, so we'll be discarding | |
| 10329 | the relocs too. */ | |
| 10330 | } | |
| 248866a8 | 10331 | else if (p->count != 0) |
| ec338859 | 10332 | { |
| 19e08130 AM |
10333 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10334 | if (p->ifunc) | |
| 33e44f2e | 10335 | srel = htab->elf.irelplt; |
| eea6121a | 10336 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10337 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10338 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10339 | } |
| 65f38f15 AM |
10340 | } |
| 10341 | } | |
| 10342 | ||
| 411e1bfb AM |
10343 | lgot_ents = elf_local_got_ents (ibfd); |
| 10344 | if (!lgot_ents) | |
| 65f38f15 AM |
10345 | continue; |
| 10346 | ||
| 0ffa91dd | 10347 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10348 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10349 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10350 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10351 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10352 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10353 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10354 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10355 | { |
| 0b8bcf0d | 10356 | struct got_entry **pent, *ent; |
| 411e1bfb | 10357 | |
| 0b8bcf0d AM |
10358 | pent = lgot_ents; |
| 10359 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10360 | if (ent->got.refcount > 0) |
| 10361 | { | |
| e7b938ca | 10362 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10363 | { |
| 927be08e | 10364 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10365 | *pent = ent->next; |
| 411e1bfb AM |
10366 | } |
| 10367 | else | |
| 10368 | { | |
| 19e08130 AM |
10369 | unsigned int ent_size = 8; |
| 10370 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10371 | ||
| eea6121a | 10372 | ent->got.offset = s->size; |
| e7b938ca | 10373 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10374 | { |
| 19e08130 AM |
10375 | ent_size *= 2; |
| 10376 | rel_size *= 2; | |
| 10377 | } | |
| 10378 | s->size += ent_size; | |
| 37da22e5 | 10379 | if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC) |
| 19e08130 | 10380 | { |
| 33e44f2e | 10381 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10382 | htab->got_reli_size += rel_size; |
| 10383 | } | |
| f15d0b54 AM |
10384 | else if (bfd_link_pic (info) |
| 10385 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 10386 | && bfd_link_executable (info))) | |
| 19e08130 AM |
10387 | { |
| 10388 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10389 | srel->size += rel_size; | |
| 927be08e | 10390 | } |
| 0b8bcf0d | 10391 | pent = &ent->next; |
| 411e1bfb AM |
10392 | } |
| 10393 | } | |
| 10394 | else | |
| 0b8bcf0d | 10395 | *pent = ent->next; |
| 65f38f15 | 10396 | } |
| e054468f | 10397 | |
| 2d7ad24e AM |
10398 | /* Allocate space for plt calls to local syms. */ |
| 10399 | lgot_masks = (unsigned char *) end_local_plt; | |
| 10400 | for (; local_plt < end_local_plt; ++local_plt, ++lgot_masks) | |
| e054468f AM |
10401 | { |
| 10402 | struct plt_entry *ent; | |
| 10403 | ||
| 10404 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10405 | if (ent->plt.refcount > 0) | |
| 10406 | { | |
| 2d7ad24e AM |
10407 | if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC) |
| 10408 | { | |
| 10409 | s = htab->elf.iplt; | |
| 10410 | ent->plt.offset = s->size; | |
| 10411 | s->size += PLT_ENTRY_SIZE (htab); | |
| 10412 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); | |
| 10413 | } | |
| 3e04d765 AM |
10414 | else if (htab->can_convert_all_inline_plt |
| 10415 | || (*lgot_masks & (TLS_TLS | PLT_KEEP)) != PLT_KEEP) | |
| 2d7ad24e AM |
10416 | ent->plt.offset = (bfd_vma) -1; |
| 10417 | else | |
| 10418 | { | |
| 10419 | s = htab->pltlocal; | |
| 10420 | ent->plt.offset = s->size; | |
| 10421 | s->size += LOCAL_PLT_ENTRY_SIZE (htab); | |
| 10422 | if (bfd_link_pic (info)) | |
| 10423 | htab->relpltlocal->size += sizeof (Elf64_External_Rela); | |
| 10424 | } | |
| e054468f AM |
10425 | } |
| 10426 | else | |
| 10427 | ent->plt.offset = (bfd_vma) -1; | |
| 10428 | } | |
| 65f38f15 AM |
10429 | } |
| 10430 | ||
| 10431 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10432 | sym dynamic relocs. */ | |
| 4ce794b7 | 10433 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d | 10434 | |
| 0e1862bb | 10435 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10436 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10437 | |
| 7865406b | 10438 | first_tlsld = NULL; |
| c72f2fb2 | 10439 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10440 | { |
| 7865406b AM |
10441 | struct got_entry *ent; |
| 10442 | ||
| 0c8d6e5c | 10443 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10444 | continue; |
| 10445 | ||
| 7865406b AM |
10446 | ent = ppc64_tlsld_got (ibfd); |
| 10447 | if (ent->got.refcount > 0) | |
| 102890f0 | 10448 | { |
| 7865406b | 10449 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10450 | { |
| 7865406b AM |
10451 | ent->is_indirect = TRUE; |
| 10452 | ent->got.ent = first_tlsld; | |
| 10453 | } | |
| 10454 | else | |
| 10455 | { | |
| 10456 | if (first_tlsld == NULL) | |
| 10457 | first_tlsld = ent; | |
| 10458 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10459 | ent->got.offset = s->size; | |
| 10460 | ent->owner = ibfd; | |
| 10461 | s->size += 16; | |
| 0e1862bb | 10462 | if (bfd_link_pic (info)) |
| 7865406b AM |
10463 | { |
| 10464 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10465 | srel->size += sizeof (Elf64_External_Rela); | |
| 10466 | } | |
| 102890f0 AM |
10467 | } |
| 10468 | } | |
| 10469 | else | |
| 7865406b | 10470 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10471 | } |
| 10472 | ||
| 65f38f15 AM |
10473 | /* We now have determined the sizes of the various dynamic sections. |
| 10474 | Allocate memory for them. */ | |
| b34976b6 | 10475 | relocs = FALSE; |
| 65f38f15 AM |
10476 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10477 | { | |
| 10478 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10479 | continue; | |
| 10480 | ||
| 4ce794b7 | 10481 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10482 | /* These haven't been allocated yet; don't strip. */ |
| 10483 | continue; | |
| 33e44f2e AM |
10484 | else if (s == htab->elf.sgot |
| 10485 | || s == htab->elf.splt | |
| 10486 | || s == htab->elf.iplt | |
| 2d7ad24e | 10487 | || s == htab->pltlocal |
| c456f082 | 10488 | || s == htab->glink |
| 9e390558 | 10489 | || s == htab->global_entry |
| 5474d94f AM |
10490 | || s == htab->elf.sdynbss |
| 10491 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10492 | { |
| 10493 | /* Strip this section if we don't need it; see the | |
| 10494 | comment below. */ | |
| 5bd4f169 | 10495 | } |
| 58d180e8 AM |
10496 | else if (s == htab->glink_eh_frame) |
| 10497 | { | |
| 10498 | if (!bfd_is_abs_section (s->output_section)) | |
| 10499 | /* Not sized yet. */ | |
| 10500 | continue; | |
| 10501 | } | |
| 70cc837d | 10502 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10503 | { |
| c456f082 | 10504 | if (s->size != 0) |
| 5bd4f169 | 10505 | { |
| 33e44f2e | 10506 | if (s != htab->elf.srelplt) |
| b34976b6 | 10507 | relocs = TRUE; |
| 5bd4f169 AM |
10508 | |
| 10509 | /* We use the reloc_count field as a counter if we need | |
| 10510 | to copy relocs into the output file. */ | |
| 10511 | s->reloc_count = 0; | |
| 10512 | } | |
| 10513 | } | |
| 65f38f15 | 10514 | else |
| 5bd4f169 AM |
10515 | { |
| 10516 | /* It's not one of our sections, so don't allocate space. */ | |
| 10517 | continue; | |
| 10518 | } | |
| 10519 | ||
| eea6121a | 10520 | if (s->size == 0) |
| 5bd4f169 | 10521 | { |
| c456f082 AM |
10522 | /* If we don't need this section, strip it from the |
| 10523 | output file. This is mostly to handle .rela.bss and | |
| 10524 | .rela.plt. We must create both sections in | |
| 10525 | create_dynamic_sections, because they must be created | |
| 10526 | before the linker maps input sections to output | |
| 10527 | sections. The linker does that before | |
| 10528 | adjust_dynamic_symbol is called, and it is that | |
| 10529 | function which decides whether anything needs to go | |
| 10530 | into these sections. */ | |
| 8423293d | 10531 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10532 | continue; |
| 10533 | } | |
| 10534 | ||
| 06bcf541 AM |
10535 | if (bfd_is_abs_section (s->output_section)) |
| 10536 | _bfd_error_handler (_("warning: discarding dynamic section %s"), | |
| 10537 | s->name); | |
| 10538 | ||
| c456f082 | 10539 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10540 | continue; |
| 10541 | ||
| 65f38f15 AM |
10542 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10543 | here in case unused entries are not reclaimed before the | |
| 10544 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10545 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10546 | sections instead of garbage. | |
| 10547 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10548 | the GOT and .dynrelro. */ |
| eea6121a | 10549 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10550 | if (s->contents == NULL) |
| b34976b6 | 10551 | return FALSE; |
| 5bd4f169 AM |
10552 | } |
| 10553 | ||
| c72f2fb2 | 10554 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10555 | { |
| 0c8d6e5c | 10556 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10557 | continue; |
| 10558 | ||
| e717da7e | 10559 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10560 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10561 | { |
| eea6121a | 10562 | if (s->size == 0) |
| 8423293d | 10563 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10564 | else |
| 10565 | { | |
| eea6121a | 10566 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10567 | if (s->contents == NULL) |
| 10568 | return FALSE; | |
| 10569 | } | |
| 10570 | } | |
| 10571 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10572 | if (s != NULL) | |
| 10573 | { | |
| eea6121a | 10574 | if (s->size == 0) |
| 8423293d | 10575 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10576 | else |
| 10577 | { | |
| eea6121a | 10578 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10579 | if (s->contents == NULL) |
| 10580 | return FALSE; | |
| 10581 | relocs = TRUE; | |
| 10582 | s->reloc_count = 0; | |
| 10583 | } | |
| 10584 | } | |
| 10585 | } | |
| 10586 | ||
| e86ce104 | 10587 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10588 | { |
| e8910a83 AM |
10589 | bfd_boolean tls_opt; |
| 10590 | ||
| 5bd4f169 AM |
10591 | /* Add some entries to the .dynamic section. We fill in the |
| 10592 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10593 | must add the entries now so that we get the correct size for | |
| 10594 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10595 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10596 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10597 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10598 | |
| 0e1862bb | 10599 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10600 | { |
| dc810e39 | 10601 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10602 | return FALSE; |
| 5bd4f169 AM |
10603 | } |
| 10604 | ||
| 33e44f2e | 10605 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10606 | { |
| dc810e39 AM |
10607 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10608 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10609 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10610 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10611 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10612 | return FALSE; |
| 5bd4f169 AM |
10613 | } |
| 10614 | ||
| ee67d69a | 10615 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10616 | { |
| 10617 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10618 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10619 | return FALSE; |
| 19397422 AM |
10620 | } |
| 10621 | ||
| 7c9cf415 | 10622 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10623 | && htab->tls_get_addr_fd != NULL |
| 10624 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10625 | if (tls_opt || !htab->opd_abi) | |
| 10626 | { | |
| 10627 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10628 | return FALSE; | |
| 10629 | } | |
| a7f2871e | 10630 | |
| 5bd4f169 AM |
10631 | if (relocs) |
| 10632 | { | |
| dc810e39 AM |
10633 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10634 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10635 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10636 | return FALSE; |
| 5bd4f169 | 10637 | |
| 65f38f15 AM |
10638 | /* If any dynamic relocs apply to a read-only section, |
| 10639 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10640 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10641 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10642 | |
| 65f38f15 | 10643 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10644 | { |
| 65f38f15 | 10645 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10646 | return FALSE; |
| 5bd4f169 | 10647 | } |
| 5bd4f169 | 10648 | } |
| 5bd4f169 | 10649 | } |
| 65f38f15 | 10650 | #undef add_dynamic_entry |
| 5bd4f169 | 10651 | |
| b34976b6 | 10652 | return TRUE; |
| 5bd4f169 AM |
10653 | } |
| 10654 | ||
| a345bc8d AM |
10655 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10656 | ||
| 10657 | static bfd_boolean | |
| 10658 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10659 | { | |
| 10660 | if (h->plt.plist != NULL | |
| 10661 | && !h->def_regular | |
| 10662 | && !h->pointer_equality_needed) | |
| 10663 | return FALSE; | |
| 10664 | ||
| 10665 | return _bfd_elf_hash_symbol (h); | |
| 10666 | } | |
| 10667 | ||
| 721956f4 | 10668 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10669 | |
| 4ce794b7 AM |
10670 | static inline enum ppc_stub_type |
| 10671 | ppc_type_of_stub (asection *input_sec, | |
| 10672 | const Elf_Internal_Rela *rel, | |
| 10673 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10674 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10675 | bfd_vma destination, |
| 10676 | unsigned long local_off) | |
| 5bd4f169 | 10677 | { |
| 721956f4 AM |
10678 | struct ppc_link_hash_entry *h = *hash; |
| 10679 | bfd_vma location; | |
| 10680 | bfd_vma branch_offset; | |
| 10681 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10682 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10683 | |
| 721956f4 AM |
10684 | if (h != NULL) |
| 10685 | { | |
| e054468f | 10686 | struct plt_entry *ent; |
| 7fe2b9a6 | 10687 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10688 | if (h->oh != NULL |
| 10689 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10690 | { |
| 10691 | fdh = ppc_follow_link (h->oh); | |
| 10692 | *hash = fdh; | |
| 10693 | } | |
| 8387904d | 10694 | |
| e054468f AM |
10695 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10696 | if (ent->addend == rel->r_addend | |
| 10697 | && ent->plt.offset != (bfd_vma) -1) | |
| 10698 | { | |
| e054468f AM |
10699 | *plt_ent = ent; |
| 10700 | return ppc_stub_plt_call; | |
| 10701 | } | |
| 5bd4f169 | 10702 | |
| 7fe2b9a6 AM |
10703 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10704 | either a defined function descriptor or a defined entry symbol | |
| 10705 | in a regular object file, then it is pointless trying to make | |
| 10706 | any other type of stub. */ | |
| 854b41e7 AM |
10707 | if (!is_static_defined (&fdh->elf) |
| 10708 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10709 | return ppc_stub_none; |
| 5d1634d7 | 10710 | } |
| e054468f AM |
10711 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10712 | { | |
| 10713 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10714 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10715 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10716 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10717 | ||
| 10718 | if (local_plt[r_symndx] != NULL) | |
| 10719 | { | |
| 10720 | struct plt_entry *ent; | |
| 10721 | ||
| 10722 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10723 | if (ent->addend == rel->r_addend | |
| 10724 | && ent->plt.offset != (bfd_vma) -1) | |
| 10725 | { | |
| 10726 | *plt_ent = ent; | |
| 10727 | return ppc_stub_plt_call; | |
| 10728 | } | |
| 10729 | } | |
| 10730 | } | |
| 5d1634d7 | 10731 | |
| 721956f4 AM |
10732 | /* Determine where the call point is. */ |
| 10733 | location = (input_sec->output_offset | |
| 10734 | + input_sec->output_section->vma | |
| 10735 | + rel->r_offset); | |
| 5d1634d7 | 10736 | |
| 721956f4 AM |
10737 | branch_offset = destination - location; |
| 10738 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10739 | |
| 721956f4 AM |
10740 | /* Determine if a long branch stub is needed. */ |
| 10741 | max_branch_offset = 1 << 25; | |
| 23cedd1d AM |
10742 | if (r_type == R_PPC64_REL14 |
| 10743 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 10744 | || r_type == R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 | 10745 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10746 | |
| 6911b7dc | 10747 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10748 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10749 | is needed later. */ | |
| 10750 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10751 | |
| 721956f4 | 10752 | return ppc_stub_none; |
| 5d1634d7 AM |
10753 | } |
| 10754 | ||
| 794e51c0 AM |
10755 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10756 | to update a plt entry in one thread and have another thread see a | |
| 10757 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10758 | barrier in the call stub. One solution is to make the load of the | |
| 10759 | toc word seem to appear to depend on the load of the function entry | |
| 10760 | word. Another solution is to test for r2 being zero, and branch to | |
| 10761 | the appropriate glink entry if so. | |
| 10762 | ||
| 10763 | . fake dep barrier compare | |
| 71a39c98 AM |
10764 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10765 | . mtctr 12 mtctr 12 | |
| 10766 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10767 | . add 2,2,11 cmpldi 2,0 |
| 10768 | . ld 2,xxx+8(2) bnectr+ | |
| 10769 | . bctr b <glink_entry> | |
| 10770 | ||
| 10771 | The solution involving the compare turns out to be faster, so | |
| 10772 | that's what we use unless the branch won't reach. */ | |
| 10773 | ||
| 10774 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10775 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10776 | |
| 794e51c0 AM |
10777 | static inline unsigned int |
| 10778 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10779 | struct ppc_stub_hash_entry *stub_entry, | |
| 10780 | bfd_vma off) | |
| 10781 | { | |
| b9e5796b AM |
10782 | unsigned size = 12; |
| 10783 | ||
| 10784 | if (ALWAYS_EMIT_R2SAVE | |
| 10785 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10786 | size += 4; | |
| 10787 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10788 | size += 4; |
| b9e5796b AM |
10789 | if (htab->opd_abi) |
| 10790 | { | |
| 10791 | size += 4; | |
| e7d1c40c | 10792 | if (htab->params->plt_static_chain) |
| b9e5796b | 10793 | size += 4; |
| bd4d2eaa AM |
10794 | if (htab->params->plt_thread_safe |
| 10795 | && htab->elf.dynamic_sections_created | |
| 10796 | && stub_entry->h != NULL | |
| 10797 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10798 | size += 8; |
| e7d1c40c | 10799 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10800 | size += 4; |
| 10801 | } | |
| 794e51c0 AM |
10802 | if (stub_entry->h != NULL |
| 10803 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10804 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10805 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10806 | { |
| 10807 | size += 7 * 4; | |
| 10808 | if (ALWAYS_EMIT_R2SAVE | |
| 10809 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 407aa07c | 10810 | size += 6 * 4; |
| f378ab09 | 10811 | } |
| 794e51c0 AM |
10812 | return size; |
| 10813 | } | |
| 10814 | ||
| 2420fff6 AM |
10815 | /* Depending on the sign of plt_stub_align: |
| 10816 | If positive, return the padding to align to a 2**plt_stub_align | |
| 10817 | boundary. | |
| 10818 | If negative, if this stub would cross fewer 2**plt_stub_align | |
| 10819 | boundaries if we align, then return the padding needed to do so. */ | |
| 10820 | ||
| 794e51c0 AM |
10821 | static inline unsigned int |
| 10822 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10823 | struct ppc_stub_hash_entry *stub_entry, | |
| 10824 | bfd_vma plt_off) | |
| 10825 | { | |
| 2420fff6 | 10826 | int stub_align; |
| 794e51c0 | 10827 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10828 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 | 10829 | |
| 2420fff6 AM |
10830 | if (htab->params->plt_stub_align >= 0) |
| 10831 | { | |
| 10832 | stub_align = 1 << htab->params->plt_stub_align; | |
| 10833 | if ((stub_off & (stub_align - 1)) != 0) | |
| 10834 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10835 | return 0; | |
| 10836 | } | |
| 10837 | ||
| 10838 | stub_align = 1 << -htab->params->plt_stub_align; | |
| 794e51c0 | 10839 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) |
| e05fa0ba | 10840 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10841 | return stub_align - (stub_off & (stub_align - 1)); |
| 10842 | return 0; | |
| 10843 | } | |
| 10844 | ||
| 10845 | /* Build a .plt call stub. */ | |
| 10846 | ||
| 10847 | static inline bfd_byte * | |
| 10848 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10849 | struct ppc_stub_hash_entry *stub_entry, | |
| 10850 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10851 | { | |
| e7d1c40c | 10852 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10853 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10854 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10855 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10856 | && htab->elf.dynamic_sections_created | |
| 10857 | && stub_entry->h != NULL | |
| 10858 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10859 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10860 | bfd_vma cmp_branch_off = 0; | |
| 10861 | ||
| 10862 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10863 | && plt_load_toc |
| 794e51c0 | 10864 | && plt_thread_safe |
| bd4d2eaa AM |
10865 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10866 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10867 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10868 | { |
| 10869 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10870 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10871 | / PLT_ENTRY_SIZE (htab)); | |
| 9e390558 | 10872 | bfd_vma glinkoff = GLINK_PLTRESOLVE_SIZE (htab) + pltindex * 8; |
| 794e51c0 AM |
10873 | bfd_vma to, from; |
| 10874 | ||
| 68d62958 AM |
10875 | if (pltindex > 32768) |
| 10876 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10877 | to = (glinkoff |
| 10878 | + htab->glink->output_offset | |
| 10879 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10880 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10881 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10882 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10883 | + 4 * (PPC_HA (offset) != 0) | |
| 10884 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10885 | != PPC_HA (offset)) | |
| 10886 | + 4 * (plt_static_chain != 0) | |
| 10887 | + 20 | |
| 6f20ed8a AM |
10888 | + stub_entry->group->stub_sec->output_offset |
| 10889 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10890 | cmp_branch_off = to - from; |
| 10891 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10892 | } | |
| 10893 | ||
| ac2df442 AM |
10894 | if (PPC_HA (offset) != 0) |
| 10895 | { | |
| 176a0d42 AM |
10896 | if (r != NULL) |
| 10897 | { | |
| 794e51c0 AM |
10898 | if (ALWAYS_EMIT_R2SAVE |
| 10899 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10900 | r[0].r_offset += 4; | |
| 176a0d42 | 10901 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10902 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10903 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10904 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10905 | if (plt_load_toc) |
| 176a0d42 | 10906 | { |
| b9e5796b | 10907 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10908 | { |
| b9e5796b AM |
10909 | r[2].r_offset = r[1].r_offset + 4; |
| 10910 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10911 | r[2].r_addend = r[0].r_addend; | |
| 10912 | } | |
| 10913 | else | |
| 10914 | { | |
| 10915 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10916 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10917 | r[2].r_addend = r[0].r_addend + 8; | |
| 10918 | if (plt_static_chain) | |
| 10919 | { | |
| 10920 | r[3].r_offset = r[2].r_offset + 4; | |
| 10921 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10922 | r[3].r_addend = r[0].r_addend + 16; | |
| 10923 | } | |
| c7131b65 | 10924 | } |
| 176a0d42 AM |
10925 | } |
| 10926 | } | |
| 794e51c0 AM |
10927 | if (ALWAYS_EMIT_R2SAVE |
| 10928 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10929 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10930 | if (plt_load_toc) |
| 10931 | { | |
| 10932 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10933 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10934 | } | |
| 10935 | else | |
| 10936 | { | |
| 10937 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10938 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10939 | } | |
| b9e5796b AM |
10940 | if (plt_load_toc |
| 10941 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10942 | { |
| 71a39c98 | 10943 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10944 | offset = 0; |
| 10945 | } | |
| 71a39c98 | 10946 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10947 | if (plt_load_toc) |
| 794e51c0 | 10948 | { |
| b9e5796b AM |
10949 | if (use_fake_dep) |
| 10950 | { | |
| 10951 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10952 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10953 | } | |
| 10954 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10955 | if (plt_static_chain) | |
| 10956 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10957 | } |
| ac2df442 AM |
10958 | } |
| 10959 | else | |
| 10960 | { | |
| 176a0d42 AM |
10961 | if (r != NULL) |
| 10962 | { | |
| 794e51c0 AM |
10963 | if (ALWAYS_EMIT_R2SAVE |
| 10964 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10965 | r[0].r_offset += 4; | |
| 176a0d42 | 10966 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10967 | if (plt_load_toc) |
| 176a0d42 | 10968 | { |
| b9e5796b | 10969 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10970 | { |
| b9e5796b AM |
10971 | r[1].r_offset = r[0].r_offset + 4; |
| 10972 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10973 | r[1].r_addend = r[0].r_addend; | |
| 10974 | } | |
| 10975 | else | |
| 10976 | { | |
| 10977 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10978 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10979 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10980 | if (plt_static_chain) | |
| 10981 | { | |
| 10982 | r[2].r_offset = r[1].r_offset + 4; | |
| 10983 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10984 | r[2].r_addend = r[0].r_addend + 8; | |
| 10985 | } | |
| c7131b65 | 10986 | } |
| 176a0d42 AM |
10987 | } |
| 10988 | } | |
| 794e51c0 AM |
10989 | if (ALWAYS_EMIT_R2SAVE |
| 10990 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10991 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10992 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10993 | if (plt_load_toc |
| 10994 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10995 | { |
| 10996 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10997 | offset = 0; | |
| 10998 | } | |
| 71a39c98 | 10999 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 11000 | if (plt_load_toc) |
| 794e51c0 | 11001 | { |
| b9e5796b AM |
11002 | if (use_fake_dep) |
| 11003 | { | |
| 11004 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 11005 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 11006 | } | |
| 11007 | if (plt_static_chain) | |
| 11008 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 11009 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 11010 | } |
| ac2df442 | 11011 | } |
| b9e5796b | 11012 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
11013 | { |
| 11014 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 11015 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 11016 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
11017 | } |
| 11018 | else | |
| 407aa07c | 11019 | bfd_put_32 (obfd, BCTR, p), p += 4; |
| 5d1634d7 AM |
11020 | return p; |
| 11021 | } | |
| 11022 | ||
| a7f2871e AM |
11023 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 11024 | ||
| 11025 | #define LD_R11_0R3 0xe9630000 | |
| 11026 | #define LD_R12_0R3 0xe9830000 | |
| 11027 | #define MR_R0_R3 0x7c601b78 | |
| 11028 | #define CMPDI_R11_0 0x2c2b0000 | |
| 11029 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 11030 | #define BEQLR 0x4d820020 | |
| 11031 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
11032 | #define STD_R11_0R1 0xf9610000 |
| 11033 | #define BCTRL 0x4e800421 | |
| 11034 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
11035 | #define MTLR_R11 0x7d6803a6 |
| 11036 | ||
| 11037 | static inline bfd_byte * | |
| 794e51c0 AM |
11038 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 11039 | struct ppc_stub_hash_entry *stub_entry, | |
| 11040 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 11041 | { |
| e7d1c40c | 11042 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 11043 | |
| a7f2871e AM |
11044 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 11045 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 11046 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 11047 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 11048 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 11049 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 11050 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
11051 | if (r != NULL) |
| 11052 | r[0].r_offset += 7 * 4; | |
| 11053 | if (!ALWAYS_EMIT_R2SAVE | |
| 11054 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 11055 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 11056 | ||
| a7f2871e | 11057 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 11058 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
11059 | |
| 11060 | if (r != NULL) | |
| f378ab09 | 11061 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 11062 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| 407aa07c | 11063 | bfd_put_32 (obfd, BCTRL, p - 4); |
| a7f2871e | 11064 | |
| a078d95a | 11065 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 11066 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
11067 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 11068 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 11069 | ||
| 11070 | return p; | |
| 11071 | } | |
| 11072 | ||
| 176a0d42 AM |
11073 | static Elf_Internal_Rela * |
| 11074 | get_relocs (asection *sec, int count) | |
| 11075 | { | |
| 11076 | Elf_Internal_Rela *relocs; | |
| 11077 | struct bfd_elf_section_data *elfsec_data; | |
| 11078 | ||
| 11079 | elfsec_data = elf_section_data (sec); | |
| 11080 | relocs = elfsec_data->relocs; | |
| 11081 | if (relocs == NULL) | |
| 11082 | { | |
| 11083 | bfd_size_type relsize; | |
| 11084 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 11085 | relocs = bfd_alloc (sec->owner, relsize); | |
| 11086 | if (relocs == NULL) | |
| 11087 | return NULL; | |
| 11088 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
11089 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 11090 | sizeof (Elf_Internal_Shdr)); | |
| 11091 | if (elfsec_data->rela.hdr == NULL) | |
| 11092 | return NULL; | |
| 11093 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 11094 | * sizeof (Elf64_External_Rela)); | |
| 11095 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
11096 | sec->reloc_count = 0; |
| 11097 | } | |
| 11098 | relocs += sec->reloc_count; | |
| 11099 | sec->reloc_count += count; | |
| 11100 | return relocs; | |
| 11101 | } | |
| 11102 | ||
| aa374f67 | 11103 | static bfd_vma |
| 25f53a85 | 11104 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
11105 | struct ppc_stub_hash_entry *stub_entry) |
| 11106 | { | |
| 25f53a85 | 11107 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 11108 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
11109 | |
| 11110 | if (r2off == 0) | |
| 11111 | { | |
| 11112 | /* Support linking -R objects. Get the toc pointer from the | |
| 11113 | opd entry. */ | |
| 11114 | char buf[8]; | |
| b9e5796b AM |
11115 | if (!htab->opd_abi) |
| 11116 | return r2off; | |
| aa374f67 AM |
11117 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 11118 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 11119 | ||
| 11120 | if (strcmp (opd->name, ".opd") != 0 | |
| 11121 | || opd->reloc_count != 0) | |
| 11122 | { | |
| c1c8c1ef | 11123 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%pT'\n"), |
| 25f53a85 | 11124 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 11125 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 11126 | return (bfd_vma) -1; |
| aa374f67 AM |
11127 | } |
| 11128 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 11129 | return (bfd_vma) -1; |
| aa374f67 | 11130 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 11131 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 11132 | } |
| 6f20ed8a | 11133 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
11134 | return r2off; |
| 11135 | } | |
| 11136 | ||
| b34976b6 | 11137 | static bfd_boolean |
| 4ce794b7 | 11138 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 11139 | { |
| 721956f4 AM |
11140 | struct ppc_stub_hash_entry *stub_entry; |
| 11141 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
11142 | struct bfd_link_info *info; |
| 11143 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
11144 | bfd_byte *loc; |
| 11145 | bfd_byte *p; | |
| ee75fd95 | 11146 | bfd_vma dest, off; |
| 176a0d42 | 11147 | Elf_Internal_Rela *r; |
| e054468f | 11148 | asection *plt; |
| 5d1634d7 | 11149 | |
| 721956f4 AM |
11150 | /* Massage our args to the form they really have. */ |
| 11151 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 11152 | info = in_arg; |
| 5d1634d7 | 11153 | |
| 5d1634d7 | 11154 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
11155 | if (htab == NULL) |
| 11156 | return FALSE; | |
| 5d1634d7 | 11157 | |
| 721956f4 | 11158 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
11159 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 11160 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 11161 | |
| 4ce794b7 | 11162 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 11163 | switch (stub_entry->stub_type) |
| 5d1634d7 | 11164 | { |
| 721956f4 | 11165 | case ppc_stub_long_branch: |
| ad8e1ba5 | 11166 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 11167 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
11168 | dest = (stub_entry->target_value |
| 11169 | + stub_entry->target_section->output_offset | |
| 11170 | + stub_entry->target_section->output_section->vma); | |
| 11171 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 11172 | off = dest; | |
| 5d1634d7 | 11173 | |
| 721956f4 AM |
11174 | /* And this is where we are coming from. */ |
| 11175 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
11176 | + stub_entry->group->stub_sec->output_offset |
| 11177 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 11178 | |
| 9e390558 | 11179 | p = loc; |
| ac2df442 | 11180 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) |
| ad8e1ba5 | 11181 | { |
| 25f53a85 | 11182 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 11183 | |
| a7c49797 | 11184 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11185 | { |
| 11186 | htab->stub_error = TRUE; | |
| 11187 | return FALSE; | |
| 11188 | } | |
| 9e390558 AM |
11189 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 11190 | p += 4; | |
| ac2df442 AM |
11191 | if (PPC_HA (r2off) != 0) |
| 11192 | { | |
| e7d1c40c | 11193 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11194 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 11195 | p += 4; | |
| a7c49797 AM |
11196 | } |
| 11197 | if (PPC_LO (r2off) != 0) | |
| 11198 | { | |
| 11199 | bfd_put_32 (htab->params->stub_bfd, | |
| 9e390558 AM |
11200 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| 11201 | p += 4; | |
| ac2df442 | 11202 | } |
| 9e390558 | 11203 | off -= p - loc; |
| ad8e1ba5 | 11204 | } |
| 9e390558 AM |
11205 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), p); |
| 11206 | p += 4; | |
| ad8e1ba5 | 11207 | |
| 5c3dead3 AM |
11208 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 11209 | { | |
| cf97bcb0 AM |
11210 | _bfd_error_handler |
| 11211 | (_("long branch stub `%s' offset overflow"), | |
| bc30df16 | 11212 | stub_entry->root.string); |
| 5c3dead3 AM |
11213 | htab->stub_error = TRUE; |
| 11214 | return FALSE; | |
| 11215 | } | |
| ee75fd95 AM |
11216 | |
| 11217 | if (info->emitrelocations) | |
| 11218 | { | |
| 6f20ed8a | 11219 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
11220 | if (r == NULL) |
| 11221 | return FALSE; | |
| 9e390558 | 11222 | r->r_offset = p - 4 - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
11223 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 11224 | r->r_addend = dest; | |
| 11225 | if (stub_entry->h != NULL) | |
| 11226 | { | |
| 11227 | struct elf_link_hash_entry **hashes; | |
| 11228 | unsigned long symndx; | |
| 11229 | struct ppc_link_hash_entry *h; | |
| 11230 | ||
| e7d1c40c | 11231 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
11232 | if (hashes == NULL) |
| 11233 | { | |
| 11234 | bfd_size_type hsize; | |
| 11235 | ||
| 11236 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 11237 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
11238 | if (hashes == NULL) |
| 11239 | return FALSE; | |
| e7d1c40c | 11240 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
11241 | htab->stub_globals = 1; |
| 11242 | } | |
| 11243 | symndx = htab->stub_globals++; | |
| 11244 | h = stub_entry->h; | |
| 11245 | hashes[symndx] = &h->elf; | |
| 11246 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 11247 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 11248 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
11249 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 11250 | /* H is an opd symbol. The addend must be zero. */ | |
| 11251 | r->r_addend = 0; | |
| 11252 | else | |
| 11253 | { | |
| 11254 | off = (h->elf.root.u.def.value | |
| 11255 | + h->elf.root.u.def.section->output_offset | |
| 11256 | + h->elf.root.u.def.section->output_section->vma); | |
| 11257 | r->r_addend -= off; | |
| 11258 | } | |
| 11259 | } | |
| 11260 | } | |
| 721956f4 | 11261 | break; |
| e86ce104 | 11262 | |
| 721956f4 | 11263 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 11264 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
11265 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 11266 | stub_entry->root.string + 9, | |
| b34976b6 | 11267 | FALSE, FALSE); |
| 721956f4 AM |
11268 | if (br_entry == NULL) |
| 11269 | { | |
| cf97bcb0 AM |
11270 | _bfd_error_handler (_("can't find branch stub `%s'"), |
| 11271 | stub_entry->root.string); | |
| b34976b6 AM |
11272 | htab->stub_error = TRUE; |
| 11273 | return FALSE; | |
| 721956f4 AM |
11274 | } |
| 11275 | ||
| 176a0d42 AM |
11276 | dest = (stub_entry->target_value |
| 11277 | + stub_entry->target_section->output_offset | |
| 11278 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
11279 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 11280 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 11281 | |
| 176a0d42 | 11282 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 11283 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 11284 | |
| f94498ff | 11285 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 11286 | { |
| f94498ff | 11287 | br_entry->iter = 0; |
| 84f5d08e | 11288 | |
| f94498ff | 11289 | if (htab->relbrlt != NULL) |
| 84f5d08e | 11290 | { |
| f94498ff AM |
11291 | /* Create a reloc for the branch lookup table entry. */ |
| 11292 | Elf_Internal_Rela rela; | |
| 11293 | bfd_byte *rl; | |
| 11294 | ||
| 11295 | rela.r_offset = (br_entry->offset | |
| 11296 | + htab->brlt->output_offset | |
| 11297 | + htab->brlt->output_section->vma); | |
| 11298 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11299 | rela.r_addend = dest; |
| f94498ff AM |
11300 | |
| 11301 | rl = htab->relbrlt->contents; | |
| 11302 | rl += (htab->relbrlt->reloc_count++ | |
| 11303 | * sizeof (Elf64_External_Rela)); | |
| 11304 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 11305 | } | |
| 11306 | else if (info->emitrelocations) | |
| 11307 | { | |
| 176a0d42 AM |
11308 | r = get_relocs (htab->brlt, 1); |
| 11309 | if (r == NULL) | |
| 11310 | return FALSE; | |
| 11311 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 11312 | normal reloc processing. Symbols and offsets are not | |
| 11313 | translated from input file to output file form, so | |
| 11314 | set up the offset per the output file. */ | |
| f94498ff AM |
11315 | r->r_offset = (br_entry->offset |
| 11316 | + htab->brlt->output_offset | |
| 11317 | + htab->brlt->output_section->vma); | |
| 11318 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11319 | r->r_addend = dest; |
| 84f5d08e | 11320 | } |
| 84f5d08e | 11321 | } |
| 721956f4 | 11322 | |
| 176a0d42 AM |
11323 | dest = (br_entry->offset |
| 11324 | + htab->brlt->output_offset | |
| 11325 | + htab->brlt->output_section->vma); | |
| 11326 | ||
| 11327 | off = (dest | |
| 06bcf541 | 11328 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11329 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11330 | |
| ad8e1ba5 | 11331 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11332 | { |
| 25f53a85 | 11333 | info->callbacks->einfo |
| c1c8c1ef | 11334 | (_("%P: linkage table error against `%pT'\n"), |
| 721956f4 | 11335 | stub_entry->root.string); |
| 5d1634d7 | 11336 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11337 | htab->stub_error = TRUE; |
| 11338 | return FALSE; | |
| 5d1634d7 | 11339 | } |
| 41bd81ab | 11340 | |
| 176a0d42 AM |
11341 | if (info->emitrelocations) |
| 11342 | { | |
| 6f20ed8a | 11343 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11344 | if (r == NULL) |
| 11345 | return FALSE; | |
| 6f20ed8a | 11346 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11347 | if (bfd_big_endian (info->output_bfd)) |
| 11348 | r[0].r_offset += 2; | |
| 00f412ee | 11349 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11350 | r[0].r_offset += 4; |
| 11351 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11352 | r[0].r_addend = dest; | |
| 11353 | if (PPC_HA (off) != 0) | |
| 11354 | { | |
| 11355 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11356 | r[1].r_offset = r[0].r_offset + 4; | |
| 11357 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11358 | r[1].r_addend = r[0].r_addend; | |
| 11359 | } | |
| 11360 | } | |
| 11361 | ||
| 9e390558 | 11362 | p = loc; |
| 00f412ee | 11363 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11364 | { |
| 176a0d42 | 11365 | if (PPC_HA (off) != 0) |
| ac2df442 | 11366 | { |
| e7d1c40c | 11367 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11368 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11369 | p += 4; | |
| e7d1c40c | 11370 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11371 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11372 | } |
| 11373 | else | |
| 9e390558 AM |
11374 | bfd_put_32 (htab->params->stub_bfd, |
| 11375 | LD_R12_0R2 | PPC_LO (off), p); | |
| ad8e1ba5 AM |
11376 | } |
| 11377 | else | |
| 11378 | { | |
| 25f53a85 | 11379 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11380 | |
| a7c49797 | 11381 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11382 | { |
| 11383 | htab->stub_error = TRUE; | |
| 11384 | return FALSE; | |
| 11385 | } | |
| ad8e1ba5 | 11386 | |
| 9e390558 AM |
11387 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 11388 | p += 4; | |
| 176a0d42 | 11389 | if (PPC_HA (off) != 0) |
| ac2df442 | 11390 | { |
| e7d1c40c | 11391 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11392 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11393 | p += 4; | |
| e7d1c40c | 11394 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11395 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11396 | } |
| 11397 | else | |
| 9e390558 | 11398 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), p); |
| ac2df442 AM |
11399 | |
| 11400 | if (PPC_HA (r2off) != 0) | |
| 11401 | { | |
| 9e390558 | 11402 | p += 4; |
| e7d1c40c | 11403 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11404 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 00f412ee AM |
11405 | } |
| 11406 | if (PPC_LO (r2off) != 0) | |
| 11407 | { | |
| 9e390558 | 11408 | p += 4; |
| e7d1c40c | 11409 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11410 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| ac2df442 | 11411 | } |
| ad8e1ba5 | 11412 | } |
| 9e390558 AM |
11413 | p += 4; |
| 11414 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, p); | |
| 11415 | p += 4; | |
| 407aa07c AM |
11416 | bfd_put_32 (htab->params->stub_bfd, BCTR, p); |
| 11417 | p += 4; | |
| 721956f4 | 11418 | break; |
| 5d1634d7 | 11419 | |
| 721956f4 | 11420 | case ppc_stub_plt_call: |
| 794e51c0 | 11421 | case ppc_stub_plt_call_r2save: |
| e054468f | 11422 | if (stub_entry->h != NULL |
| b31867b6 AM |
11423 | && stub_entry->h->is_func_descriptor |
| 11424 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11425 | { |
| b31867b6 AM |
11426 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11427 | ||
| 11428 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11429 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11430 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11431 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11432 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11433 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11434 | } |
| 11435 | ||
| 721956f4 | 11436 | /* Now build the stub. */ |
| e054468f | 11437 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11438 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11439 | abort (); |
| 11440 | ||
| 33e44f2e | 11441 | plt = htab->elf.splt; |
| 25f23106 AM |
11442 | if (!htab->elf.dynamic_sections_created |
| 11443 | || stub_entry->h == NULL | |
| 11444 | || stub_entry->h->elf.dynindx == -1) | |
| 2d7ad24e AM |
11445 | { |
| 11446 | if (stub_entry->symtype == STT_GNU_IFUNC) | |
| 11447 | plt = htab->elf.iplt; | |
| 11448 | else | |
| 11449 | plt = htab->pltlocal; | |
| 11450 | } | |
| e054468f AM |
11451 | |
| 11452 | dest += plt->output_offset + plt->output_section->vma; | |
| 11453 | ||
| 176a0d42 | 11454 | off = (dest |
| 06bcf541 | 11455 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11456 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11457 | |
| ad8e1ba5 | 11458 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11459 | { |
| 25f53a85 | 11460 | info->callbacks->einfo |
| 695344c0 | 11461 | /* xgettext:c-format */ |
| c1c8c1ef | 11462 | (_("%P: linkage table error against `%pT'\n"), |
| e054468f AM |
11463 | stub_entry->h != NULL |
| 11464 | ? stub_entry->h->elf.root.root.string | |
| 11465 | : "<local sym>"); | |
| 721956f4 | 11466 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11467 | htab->stub_error = TRUE; |
| 11468 | return FALSE; | |
| 721956f4 AM |
11469 | } |
| 11470 | ||
| e7d1c40c | 11471 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11472 | { |
| 11473 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11474 | ||
| 6f20ed8a AM |
11475 | stub_entry->group->stub_sec->size += pad; |
| 11476 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11477 | loc += pad; |
| 11478 | } | |
| 11479 | ||
| 176a0d42 AM |
11480 | r = NULL; |
| 11481 | if (info->emitrelocations) | |
| 11482 | { | |
| 6f20ed8a | 11483 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11484 | ((PPC_HA (off) != 0) |
| 11485 | + (htab->opd_abi | |
| e7d1c40c | 11486 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11487 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11488 | : 1))); | |
| 176a0d42 AM |
11489 | if (r == NULL) |
| 11490 | return FALSE; | |
| 6f20ed8a | 11491 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11492 | if (bfd_big_endian (info->output_bfd)) |
| 11493 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11494 | r[0].r_addend = dest; |
| 11495 | } | |
| a7f2871e AM |
11496 | if (stub_entry->h != NULL |
| 11497 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11498 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11499 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11500 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11501 | else |
| 794e51c0 | 11502 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11503 | break; |
| 11504 | ||
| a4b6fadd AM |
11505 | case ppc_stub_save_res: |
| 11506 | return TRUE; | |
| 11507 | ||
| 721956f4 AM |
11508 | default: |
| 11509 | BFD_FAIL (); | |
| b34976b6 | 11510 | return FALSE; |
| 721956f4 AM |
11511 | } |
| 11512 | ||
| 9e390558 | 11513 | stub_entry->group->stub_sec->size += p - loc; |
| 97b639ba | 11514 | |
| e7d1c40c | 11515 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11516 | { |
| 11517 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11518 | size_t len1, len2; |
| 11519 | char *name; | |
| 11520 | const char *const stub_str[] = { "long_branch", | |
| 11521 | "long_branch_r2off", | |
| 11522 | "plt_branch", | |
| 11523 | "plt_branch_r2off", | |
| 794e51c0 | 11524 | "plt_call", |
| ee75fd95 AM |
11525 | "plt_call" }; |
| 11526 | ||
| 11527 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11528 | len2 = strlen (stub_entry->root.string); | |
| 11529 | name = bfd_malloc (len1 + len2 + 2); | |
| 11530 | if (name == NULL) | |
| 11531 | return FALSE; | |
| 11532 | memcpy (name, stub_entry->root.string, 9); | |
| 11533 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11534 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11535 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11536 | if (h == NULL) |
| 11537 | return FALSE; | |
| 11538 | if (h->root.type == bfd_link_hash_new) | |
| 11539 | { | |
| 11540 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11541 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11542 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11543 | h->ref_regular = 1; |
| 11544 | h->def_regular = 1; | |
| 11545 | h->ref_regular_nonweak = 1; | |
| 11546 | h->forced_local = 1; | |
| 11547 | h->non_elf = 0; | |
| 2ec55de3 | 11548 | h->root.linker_def = 1; |
| 97b639ba AM |
11549 | } |
| 11550 | } | |
| 11551 | ||
| b34976b6 | 11552 | return TRUE; |
| 721956f4 AM |
11553 | } |
| 11554 | ||
| 11555 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11556 | we know stub section sizes, and select plt_branch stubs where | |
| 11557 | long_branch stubs won't do. */ | |
| 11558 | ||
| b34976b6 | 11559 | static bfd_boolean |
| 4ce794b7 | 11560 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11561 | { |
| 11562 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11563 | struct bfd_link_info *info; |
| 721956f4 AM |
11564 | struct ppc_link_hash_table *htab; |
| 11565 | bfd_vma off; | |
| 11566 | int size; | |
| 11567 | ||
| 11568 | /* Massage our args to the form they really have. */ | |
| 11569 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11570 | info = in_arg; |
| 11571 | ||
| 11572 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11573 | if (htab == NULL) |
| 11574 | return FALSE; | |
| 721956f4 | 11575 | |
| a4b6fadd AM |
11576 | if (stub_entry->h != NULL |
| 11577 | && stub_entry->h->save_res | |
| 11578 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11579 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11580 | { | |
| 11581 | /* Don't make stubs to out-of-line register save/restore | |
| 11582 | functions. Instead, emit copies of the functions. */ | |
| 11583 | stub_entry->group->needs_save_res = 1; | |
| 11584 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11585 | return TRUE; | |
| 11586 | } | |
| 11587 | ||
| 794e51c0 AM |
11588 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11589 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11590 | { |
| e054468f AM |
11591 | asection *plt; |
| 11592 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11593 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11594 | abort (); |
| 33e44f2e | 11595 | plt = htab->elf.splt; |
| 25f23106 AM |
11596 | if (!htab->elf.dynamic_sections_created |
| 11597 | || stub_entry->h == NULL | |
| 11598 | || stub_entry->h->elf.dynindx == -1) | |
| 2d7ad24e AM |
11599 | { |
| 11600 | if (stub_entry->symtype == STT_GNU_IFUNC) | |
| 11601 | plt = htab->elf.iplt; | |
| 11602 | else | |
| 11603 | plt = htab->pltlocal; | |
| 11604 | } | |
| e054468f AM |
11605 | off += (plt->output_offset |
| 11606 | + plt->output_section->vma | |
| 06bcf541 | 11607 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11608 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11609 | |
| 794e51c0 | 11610 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11611 | if (stub_entry->h != NULL |
| 11612 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11613 | || stub_entry->h == htab->tls_get_addr) | |
| 11614 | && htab->params->tls_get_addr_opt | |
| 11615 | && (ALWAYS_EMIT_R2SAVE | |
| 11616 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11617 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11618 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11619 | ||
| e7d1c40c | 11620 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11621 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11622 | if (info->emitrelocations) |
| 11623 | { | |
| 6f20ed8a | 11624 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11625 | += ((PPC_HA (off) != 0) |
| 11626 | + (htab->opd_abi | |
| e7d1c40c | 11627 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11628 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11629 | : 1)); | |
| 6f20ed8a | 11630 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11631 | } |
| 721956f4 AM |
11632 | } |
| 11633 | else | |
| 11634 | { | |
| ad8e1ba5 AM |
11635 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11636 | variants. */ | |
| ac2df442 | 11637 | bfd_vma r2off = 0; |
| 6911b7dc | 11638 | bfd_vma local_off = 0; |
| ac2df442 | 11639 | |
| 721956f4 AM |
11640 | off = (stub_entry->target_value |
| 11641 | + stub_entry->target_section->output_offset | |
| 11642 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11643 | off -= (stub_entry->group->stub_sec->size |
| 11644 | + stub_entry->group->stub_sec->output_offset | |
| 11645 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11646 | |
| ad8e1ba5 AM |
11647 | /* Reset the stub type from the plt variant in case we now |
| 11648 | can reach with a shorter stub. */ | |
| 11649 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11650 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11651 | ||
| 11652 | size = 4; | |
| 11653 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11654 | { | |
| 25f53a85 | 11655 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11656 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11657 | { |
| 11658 | htab->stub_error = TRUE; | |
| 11659 | return FALSE; | |
| 11660 | } | |
| a7c49797 | 11661 | size = 8; |
| ac2df442 | 11662 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11663 | size += 4; |
| 11664 | if (PPC_LO (r2off) != 0) | |
| 11665 | size += 4; | |
| ac2df442 | 11666 | off -= size - 4; |
| ad8e1ba5 AM |
11667 | } |
| 11668 | ||
| 6911b7dc AM |
11669 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11670 | ||
| 6a3858a6 | 11671 | /* If the branch offset is too big, use a ppc_stub_plt_branch. |
| b9e5796b AM |
11672 | Do the same for -R objects without function descriptors. */ |
| 11673 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11674 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11675 | && r2off == 0 |
| 11676 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11677 | { |
| 11678 | struct ppc_branch_hash_entry *br_entry; | |
| 11679 | ||
| 11680 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11681 | stub_entry->root.string + 9, | |
| b34976b6 | 11682 | TRUE, FALSE); |
| 721956f4 AM |
11683 | if (br_entry == NULL) |
| 11684 | { | |
| cf97bcb0 AM |
11685 | _bfd_error_handler (_("can't build branch stub `%s'"), |
| 11686 | stub_entry->root.string); | |
| b34976b6 AM |
11687 | htab->stub_error = TRUE; |
| 11688 | return FALSE; | |
| 721956f4 AM |
11689 | } |
| 11690 | ||
| 11691 | if (br_entry->iter != htab->stub_iteration) | |
| 11692 | { | |
| 11693 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11694 | br_entry->offset = htab->brlt->size; |
| 11695 | htab->brlt->size += 8; | |
| 63bc6f6c | 11696 | |
| ee75fd95 | 11697 | if (htab->relbrlt != NULL) |
| eea6121a | 11698 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11699 | else if (info->emitrelocations) |
| 11700 | { | |
| 11701 | htab->brlt->reloc_count += 1; | |
| 11702 | htab->brlt->flags |= SEC_RELOC; | |
| 11703 | } | |
| 721956f4 | 11704 | } |
| ad8e1ba5 AM |
11705 | |
| 11706 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11707 | off = (br_entry->offset |
| 11708 | + htab->brlt->output_offset | |
| 11709 | + htab->brlt->output_section->vma | |
| 06bcf541 | 11710 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11711 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11712 | |
| 176a0d42 AM |
11713 | if (info->emitrelocations) |
| 11714 | { | |
| 6f20ed8a AM |
11715 | stub_entry->group->stub_sec->reloc_count |
| 11716 | += 1 + (PPC_HA (off) != 0); | |
| 11717 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11718 | } |
| 11719 | ||
| 00f412ee | 11720 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11721 | { |
| 11722 | size = 12; | |
| 176a0d42 | 11723 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11724 | size = 16; |
| 11725 | } | |
| 11726 | else | |
| 11727 | { | |
| 00f412ee | 11728 | size = 16; |
| 176a0d42 | 11729 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11730 | size += 4; |
| 11731 | ||
| 11732 | if (PPC_HA (r2off) != 0) | |
| 11733 | size += 4; | |
| 00f412ee AM |
11734 | if (PPC_LO (r2off) != 0) |
| 11735 | size += 4; | |
| ac2df442 | 11736 | } |
| 721956f4 | 11737 | } |
| 84f5d08e AM |
11738 | else if (info->emitrelocations) |
| 11739 | { | |
| 6f20ed8a AM |
11740 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11741 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11742 | } |
| 721956f4 AM |
11743 | } |
| 11744 | ||
| 6f20ed8a | 11745 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11746 | return TRUE; |
| 721956f4 AM |
11747 | } |
| 11748 | ||
| 11749 | /* Set up various things so that we can make a list of input sections | |
| 11750 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11751 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11752 | |
| 11753 | int | |
| e7d1c40c | 11754 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11755 | { |
| 6f20ed8a | 11756 | unsigned int id; |
| 721956f4 AM |
11757 | bfd_size_type amt; |
| 11758 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11759 | ||
| 4dfe6ac6 NC |
11760 | if (htab == NULL) |
| 11761 | return -1; | |
| 4c52953f | 11762 | |
| 7cf7fcc8 | 11763 | htab->sec_info_arr_size = _bfd_section_id; |
| 6f20ed8a AM |
11764 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); |
| 11765 | htab->sec_info = bfd_zmalloc (amt); | |
| 11766 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11767 | return -1; |
| 11768 | ||
| 3d6f9012 AM |
11769 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11770 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11771 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11772 | |
| 721956f4 AM |
11773 | return 1; |
| 11774 | } | |
| 11775 | ||
| 927be08e AM |
11776 | /* Set up for first pass at multitoc partitioning. */ |
| 11777 | ||
| 11778 | void | |
| 11779 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11780 | { | |
| 11781 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11782 | ||
| 1c865ab2 | 11783 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11784 | htab->toc_bfd = NULL; |
| 11785 | htab->toc_first_sec = NULL; | |
| 11786 | } | |
| 11787 | ||
| e717da7e AM |
11788 | /* The linker repeatedly calls this function for each TOC input section |
| 11789 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11790 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11791 | |
| 927be08e | 11792 | bfd_boolean |
| 4ce794b7 | 11793 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11794 | { |
| 11795 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11796 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11797 | |
| 4dfe6ac6 NC |
11798 | if (htab == NULL) |
| 11799 | return FALSE; | |
| 11800 | ||
| 927be08e | 11801 | if (!htab->second_toc_pass) |
| 4c52953f | 11802 | { |
| 927be08e | 11803 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11804 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11805 | ||
| 11806 | if (new_bfd) | |
| bf102f86 AM |
11807 | { |
| 11808 | htab->toc_bfd = isec->owner; | |
| 11809 | htab->toc_first_sec = isec; | |
| 11810 | } | |
| 927be08e | 11811 | |
| bf102f86 AM |
11812 | addr = isec->output_offset + isec->output_section->vma; |
| 11813 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11814 | limit = 0x80008000; |
| 11815 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11816 | limit = 0x10000; | |
| 11817 | if (off + isec->size > limit) | |
| bf102f86 AM |
11818 | { |
| 11819 | addr = (htab->toc_first_sec->output_offset | |
| 11820 | + htab->toc_first_sec->output_section->vma); | |
| 11821 | htab->toc_curr = addr; | |
| a27e685f | 11822 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11823 | } |
| 99877b66 | 11824 | |
| 927be08e AM |
11825 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11826 | for the input section to be the offset relative to the | |
| 11827 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11828 | offset allows us to move the toc as a whole without | |
| 11829 | recalculating input elf_gp. */ | |
| 06bcf541 | 11830 | off = htab->toc_curr - elf_gp (info->output_bfd); |
| 927be08e AM |
11831 | off += TOC_BASE_OFF; |
| 11832 | ||
| 11833 | /* Die if someone uses a linker script that doesn't keep input | |
| 11834 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11835 | if (new_bfd |
| 11836 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11837 | && elf_gp (isec->owner) != off) |
| 11838 | return FALSE; | |
| 11839 | ||
| 11840 | elf_gp (isec->owner) = off; | |
| 11841 | return TRUE; | |
| 4c52953f | 11842 | } |
| 927be08e AM |
11843 | |
| 11844 | /* During the second pass toc_first_sec points to the start of | |
| 11845 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11846 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11847 | if (htab->toc_bfd == isec->owner) | |
| 11848 | return TRUE; | |
| 11849 | htab->toc_bfd = isec->owner; | |
| 11850 | ||
| 11851 | if (htab->toc_first_sec == NULL | |
| 11852 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11853 | { | |
| 11854 | htab->toc_curr = elf_gp (isec->owner); | |
| 11855 | htab->toc_first_sec = isec; | |
| 11856 | } | |
| 11857 | addr = (htab->toc_first_sec->output_offset | |
| 11858 | + htab->toc_first_sec->output_section->vma); | |
| 06bcf541 | 11859 | off = addr - elf_gp (info->output_bfd) + TOC_BASE_OFF; |
| 927be08e AM |
11860 | elf_gp (isec->owner) = off; |
| 11861 | ||
| 11862 | return TRUE; | |
| ad8e1ba5 AM |
11863 | } |
| 11864 | ||
| 927be08e AM |
11865 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11866 | symbol H. */ | |
| 11867 | ||
| 11868 | static bfd_boolean | |
| 11869 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11870 | { | |
| 11871 | if (h->root.type == bfd_link_hash_indirect) | |
| 11872 | return TRUE; | |
| 11873 | ||
| 927be08e AM |
11874 | merge_got_entries (&h->got.glist); |
| 11875 | ||
| 11876 | return TRUE; | |
| 11877 | } | |
| 11878 | ||
| 11879 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11880 | symbol H. */ | |
| 11881 | ||
| 11882 | static bfd_boolean | |
| 11883 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11884 | { | |
| 11885 | struct got_entry *gent; | |
| 11886 | ||
| 11887 | if (h->root.type == bfd_link_hash_indirect) | |
| 11888 | return TRUE; | |
| 11889 | ||
| 927be08e AM |
11890 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11891 | if (!gent->is_indirect) | |
| 11892 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11893 | return TRUE; | |
| 11894 | } | |
| 11895 | ||
| 11896 | /* Called on the first multitoc pass after the last call to | |
| 11897 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11898 | entries. */ | |
| 11899 | ||
| 11900 | bfd_boolean | |
| 11901 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11902 | { |
| 11903 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11904 | struct bfd *ibfd, *ibfd2; |
| 11905 | bfd_boolean done_something; | |
| 11906 | ||
| 11907 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11908 | |
| 7865406b AM |
11909 | if (!htab->do_multi_toc) |
| 11910 | return FALSE; | |
| 11911 | ||
| d0fae19d | 11912 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11913 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11914 | ||
| 11915 | /* And tlsld_got. */ | |
| c72f2fb2 | 11916 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11917 | { |
| 11918 | struct got_entry *ent, *ent2; | |
| 11919 | ||
| 11920 | if (!is_ppc64_elf (ibfd)) | |
| 11921 | continue; | |
| 11922 | ||
| 11923 | ent = ppc64_tlsld_got (ibfd); | |
| 11924 | if (!ent->is_indirect | |
| 11925 | && ent->got.offset != (bfd_vma) -1) | |
| 11926 | { | |
| c72f2fb2 | 11927 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11928 | { |
| 11929 | if (!is_ppc64_elf (ibfd2)) | |
| 11930 | continue; | |
| 11931 | ||
| 11932 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11933 | if (!ent2->is_indirect | |
| 11934 | && ent2->got.offset != (bfd_vma) -1 | |
| 11935 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11936 | { | |
| 11937 | ent2->is_indirect = TRUE; | |
| 11938 | ent2->got.ent = ent; | |
| 11939 | } | |
| 11940 | } | |
| 11941 | } | |
| 11942 | } | |
| 11943 | ||
| 11944 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11945 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11946 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11947 | htab->got_reli_size = 0; |
| 11948 | ||
| c72f2fb2 | 11949 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11950 | { |
| 11951 | asection *got, *relgot; | |
| 11952 | ||
| 11953 | if (!is_ppc64_elf (ibfd)) | |
| 11954 | continue; | |
| 11955 | ||
| 11956 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11957 | if (got != NULL) | |
| 11958 | { | |
| 11959 | got->rawsize = got->size; | |
| 11960 | got->size = 0; | |
| 11961 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11962 | relgot->rawsize = relgot->size; | |
| 11963 | relgot->size = 0; | |
| 11964 | } | |
| 11965 | } | |
| 11966 | ||
| 11967 | /* Now reallocate the got, local syms first. We don't need to | |
| 11968 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11969 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11970 | { |
| 11971 | struct got_entry **lgot_ents; | |
| 11972 | struct got_entry **end_lgot_ents; | |
| 11973 | struct plt_entry **local_plt; | |
| 11974 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11975 | unsigned char *lgot_masks; |
| 927be08e AM |
11976 | bfd_size_type locsymcount; |
| 11977 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11978 | asection *s; |
| 927be08e AM |
11979 | |
| 11980 | if (!is_ppc64_elf (ibfd)) | |
| 11981 | continue; | |
| 11982 | ||
| 11983 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11984 | if (!lgot_ents) | |
| 11985 | continue; | |
| 11986 | ||
| 11987 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11988 | locsymcount = symtab_hdr->sh_info; | |
| 11989 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11990 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11991 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11992 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11993 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11994 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11995 | { | |
| 11996 | struct got_entry *ent; | |
| 11997 | ||
| 11998 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11999 | { |
| 19e08130 AM |
12000 | unsigned int ent_size = 8; |
| 12001 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 12002 | ||
| d0fae19d AM |
12003 | ent->got.offset = s->size; |
| 12004 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 12005 | { |
| 19e08130 AM |
12006 | ent_size *= 2; |
| 12007 | rel_size *= 2; | |
| 12008 | } | |
| 12009 | s->size += ent_size; | |
| 37da22e5 | 12010 | if ((*lgot_masks & (TLS_TLS | PLT_IFUNC)) == PLT_IFUNC) |
| 19e08130 | 12011 | { |
| 33e44f2e | 12012 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
12013 | htab->got_reli_size += rel_size; |
| 12014 | } | |
| 6a3858a6 AM |
12015 | else if (bfd_link_pic (info) |
| 12016 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 12017 | && bfd_link_executable (info))) | |
| 19e08130 AM |
12018 | { |
| 12019 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 12020 | srel->size += rel_size; | |
| d0fae19d AM |
12021 | } |
| 12022 | } | |
| 927be08e AM |
12023 | } |
| 12024 | } | |
| 12025 | ||
| 12026 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 12027 | ||
| c72f2fb2 | 12028 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
12029 | { |
| 12030 | struct got_entry *ent; | |
| 12031 | ||
| 12032 | if (!is_ppc64_elf (ibfd)) | |
| 12033 | continue; | |
| 12034 | ||
| 12035 | ent = ppc64_tlsld_got (ibfd); | |
| 12036 | if (!ent->is_indirect | |
| 12037 | && ent->got.offset != (bfd_vma) -1) | |
| 12038 | { | |
| 12039 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 12040 | ent->got.offset = s->size; | |
| 12041 | s->size += 16; | |
| 0e1862bb | 12042 | if (bfd_link_pic (info)) |
| 927be08e AM |
12043 | { |
| 12044 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 12045 | srel->size += sizeof (Elf64_External_Rela); | |
| 12046 | } | |
| 12047 | } | |
| 12048 | } | |
| 12049 | ||
| 33e44f2e | 12050 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 12051 | if (!done_something) |
| c72f2fb2 | 12052 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
12053 | { |
| 12054 | asection *got; | |
| 12055 | ||
| 12056 | if (!is_ppc64_elf (ibfd)) | |
| 12057 | continue; | |
| 12058 | ||
| 12059 | got = ppc64_elf_tdata (ibfd)->got; | |
| 12060 | if (got != NULL) | |
| 12061 | { | |
| 12062 | done_something = got->rawsize != got->size; | |
| 12063 | if (done_something) | |
| 12064 | break; | |
| 12065 | } | |
| 12066 | } | |
| 12067 | ||
| 12068 | if (done_something) | |
| e7d1c40c | 12069 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
12070 | |
| 12071 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 12072 | on input sections. */ | |
| 12073 | htab->toc_bfd = NULL; | |
| 12074 | htab->toc_first_sec = NULL; | |
| 12075 | htab->second_toc_pass = TRUE; | |
| 12076 | return done_something; | |
| 12077 | } | |
| 12078 | ||
| 12079 | /* Called after second pass of multitoc partitioning. */ | |
| 12080 | ||
| 12081 | void | |
| 12082 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 12083 | { | |
| 12084 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12085 | ||
| 12086 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 12087 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 12088 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
12089 | } |
| 12090 | ||
| 9b5ecbd0 AM |
12091 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 12092 | calls, then there's no need to use toc adjusting stubs when branching | |
| 12093 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
12094 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 12095 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 12096 | for a stub was detected. If called from the top level, a return of | |
| 12097 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
12098 | |
| 12099 | static int | |
| 4ce794b7 | 12100 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 12101 | { |
| 9b5ecbd0 | 12102 | int ret; |
| 70cc837d AM |
12103 | |
| 12104 | /* Mark this section as checked. */ | |
| 12105 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 12106 | |
| 772119ce AM |
12107 | /* We know none of our code bearing sections will need toc stubs. */ |
| 12108 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 12109 | return 0; | |
| 12110 | ||
| eea6121a | 12111 | if (isec->size == 0) |
| 082c50f8 AM |
12112 | return 0; |
| 12113 | ||
| 4c52953f AM |
12114 | if (isec->output_section == NULL) |
| 12115 | return 0; | |
| 12116 | ||
| 4c52953f | 12117 | ret = 0; |
| 70cc837d | 12118 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 12119 | { |
| 70cc837d AM |
12120 | Elf_Internal_Rela *relstart, *rel; |
| 12121 | Elf_Internal_Sym *local_syms; | |
| 12122 | struct ppc_link_hash_table *htab; | |
| 2917689a | 12123 | |
| 70cc837d AM |
12124 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 12125 | info->keep_memory); | |
| 12126 | if (relstart == NULL) | |
| 12127 | return -1; | |
| 90aecf7a | 12128 | |
| 70cc837d AM |
12129 | /* Look for branches to outside of this section. */ |
| 12130 | local_syms = NULL; | |
| 12131 | htab = ppc_hash_table (info); | |
| 12132 | if (htab == NULL) | |
| 12133 | return -1; | |
| 4c52953f | 12134 | |
| 70cc837d | 12135 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 12136 | { |
| 70cc837d AM |
12137 | enum elf_ppc64_reloc_type r_type; |
| 12138 | unsigned long r_symndx; | |
| 12139 | struct elf_link_hash_entry *h; | |
| 12140 | struct ppc_link_hash_entry *eh; | |
| 12141 | Elf_Internal_Sym *sym; | |
| 12142 | asection *sym_sec; | |
| 12143 | struct _opd_sec_data *opd; | |
| 12144 | bfd_vma sym_value; | |
| 12145 | bfd_vma dest; | |
| 12146 | ||
| 12147 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 12148 | if (r_type != R_PPC64_REL24 | |
| 12149 | && r_type != R_PPC64_REL14 | |
| 12150 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 23cedd1d AM |
12151 | && r_type != R_PPC64_REL14_BRNTAKEN |
| 12152 | && r_type != R_PPC64_PLTCALL) | |
| 70cc837d | 12153 | continue; |
| 4c52953f | 12154 | |
| 70cc837d AM |
12155 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 12156 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 12157 | isec->owner)) | |
| 4c52953f | 12158 | { |
| 70cc837d AM |
12159 | ret = -1; |
| 12160 | break; | |
| 12161 | } | |
| 4c52953f | 12162 | |
| 70cc837d AM |
12163 | /* Calls to dynamic lib functions go through a plt call stub |
| 12164 | that uses r2. */ | |
| 12165 | eh = (struct ppc_link_hash_entry *) h; | |
| 12166 | if (eh != NULL | |
| 12167 | && (eh->elf.plt.plist != NULL | |
| 12168 | || (eh->oh != NULL | |
| 12169 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 12170 | { | |
| 12171 | ret = 1; | |
| 12172 | break; | |
| 4c52953f AM |
12173 | } |
| 12174 | ||
| 70cc837d AM |
12175 | if (sym_sec == NULL) |
| 12176 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 12177 | continue; |
| 4c52953f | 12178 | |
| 70cc837d AM |
12179 | /* Assume branches to other sections not included in the |
| 12180 | link need stubs too, to cover -R and absolute syms. */ | |
| 12181 | if (sym_sec->output_section == NULL) | |
| 12182 | { | |
| 12183 | ret = 1; | |
| 12184 | break; | |
| 12185 | } | |
| 4c52953f | 12186 | |
| 70cc837d AM |
12187 | if (h == NULL) |
| 12188 | sym_value = sym->st_value; | |
| 12189 | else | |
| 12190 | { | |
| 12191 | if (h->root.type != bfd_link_hash_defined | |
| 12192 | && h->root.type != bfd_link_hash_defweak) | |
| 12193 | abort (); | |
| 12194 | sym_value = h->root.u.def.value; | |
| 12195 | } | |
| 12196 | sym_value += rel->r_addend; | |
| 4c52953f | 12197 | |
| 70cc837d AM |
12198 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 12199 | opd = get_opd_info (sym_sec); | |
| 12200 | if (opd != NULL) | |
| 12201 | { | |
| 12202 | if (h == NULL && opd->adjust != NULL) | |
| 12203 | { | |
| 12204 | long adjust; | |
| 4c52953f | 12205 | |
| 92a9c616 | 12206 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
12207 | if (adjust == -1) |
| 12208 | /* Assume deleted functions won't ever be called. */ | |
| 12209 | continue; | |
| 12210 | sym_value += adjust; | |
| 12211 | } | |
| 4c52953f | 12212 | |
| aef36ac1 AM |
12213 | dest = opd_entry_value (sym_sec, sym_value, |
| 12214 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
12215 | if (dest == (bfd_vma) -1) |
| 12216 | continue; | |
| 12217 | } | |
| 12218 | else | |
| 12219 | dest = (sym_value | |
| 12220 | + sym_sec->output_offset | |
| 12221 | + sym_sec->output_section->vma); | |
| 4c52953f | 12222 | |
| 70cc837d AM |
12223 | /* Ignore branch to self. */ |
| 12224 | if (sym_sec == isec) | |
| 12225 | continue; | |
| 4c52953f | 12226 | |
| 70cc837d AM |
12227 | /* If the called function uses the toc, we need a stub. */ |
| 12228 | if (sym_sec->has_toc_reloc | |
| 12229 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 12230 | { |
| 70cc837d | 12231 | ret = 1; |
| 4c52953f AM |
12232 | break; |
| 12233 | } | |
| 70cc837d AM |
12234 | |
| 12235 | /* Assume any branch that needs a long branch stub might in fact | |
| 12236 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 12237 | else if (dest - (isec->output_offset | |
| 12238 | + isec->output_section->vma | |
| 6911b7dc AM |
12239 | + rel->r_offset) + (1 << 25) |
| 12240 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 12241 | ? h->other | |
| 12242 | : sym->st_other)) | |
| 4c52953f | 12243 | { |
| 70cc837d AM |
12244 | ret = 1; |
| 12245 | break; | |
| 12246 | } | |
| 12247 | ||
| 12248 | /* If calling back to a section in the process of being | |
| 12249 | tested, we can't say for sure that no toc adjusting stubs | |
| 12250 | are needed, so don't return zero. */ | |
| 12251 | else if (sym_sec->call_check_in_progress) | |
| 12252 | ret = 2; | |
| 12253 | ||
| 12254 | /* Branches to another section that itself doesn't have any TOC | |
| 12255 | references are OK. Recursively call ourselves to check. */ | |
| 12256 | else if (!sym_sec->call_check_done) | |
| 12257 | { | |
| 12258 | int recur; | |
| 12259 | ||
| 12260 | /* Mark current section as indeterminate, so that other | |
| 12261 | sections that call back to current won't be marked as | |
| 12262 | known. */ | |
| 12263 | isec->call_check_in_progress = 1; | |
| 12264 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 12265 | isec->call_check_in_progress = 0; | |
| 12266 | ||
| 4c52953f AM |
12267 | if (recur != 0) |
| 12268 | { | |
| 70cc837d AM |
12269 | ret = recur; |
| 12270 | if (recur != 2) | |
| 12271 | break; | |
| 4c52953f AM |
12272 | } |
| 12273 | } | |
| 4c52953f | 12274 | } |
| 70cc837d AM |
12275 | |
| 12276 | if (local_syms != NULL | |
| 12277 | && (elf_symtab_hdr (isec->owner).contents | |
| 12278 | != (unsigned char *) local_syms)) | |
| 12279 | free (local_syms); | |
| 12280 | if (elf_section_data (isec)->relocs != relstart) | |
| 12281 | free (relstart); | |
| 9b5ecbd0 AM |
12282 | } |
| 12283 | ||
| 70cc837d AM |
12284 | if ((ret & 1) == 0 |
| 12285 | && isec->map_head.s != NULL | |
| 12286 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 12287 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 12288 | { | |
| 12289 | if (isec->map_head.s->has_toc_reloc | |
| 12290 | || isec->map_head.s->makes_toc_func_call) | |
| 12291 | ret = 1; | |
| 12292 | else if (!isec->map_head.s->call_check_done) | |
| 12293 | { | |
| 12294 | int recur; | |
| 12295 | isec->call_check_in_progress = 1; | |
| 12296 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 12297 | isec->call_check_in_progress = 0; | |
| 12298 | if (recur != 0) | |
| 12299 | ret = recur; | |
| 12300 | } | |
| 12301 | } | |
| 12302 | ||
| 12303 | if (ret == 1) | |
| 12304 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 12305 | |
| 9b5ecbd0 AM |
12306 | return ret; |
| 12307 | } | |
| 12308 | ||
| 721956f4 AM |
12309 | /* The linker repeatedly calls this function for each input section, |
| 12310 | in the order that input sections are linked into output sections. | |
| 12311 | Build lists of input sections to determine groupings between which | |
| 12312 | we may insert linker stubs. */ | |
| 12313 | ||
| 9b5ecbd0 | 12314 | bfd_boolean |
| 4ce794b7 | 12315 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12316 | { |
| 12317 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12318 | ||
| 4dfe6ac6 NC |
12319 | if (htab == NULL) |
| 12320 | return FALSE; | |
| 12321 | ||
| 734b6cf9 | 12322 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12323 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12324 | { |
| 3d6f9012 AM |
12325 | /* This happens to make the list in reverse order, |
| 12326 | which is what we want. */ | |
| 6f20ed8a AM |
12327 | htab->sec_info[isec->id].u.list |
| 12328 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12329 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12330 | } |
| ad8e1ba5 | 12331 | |
| 4c52953f | 12332 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12333 | { |
| 8b974ba3 AM |
12334 | /* Analyse sections that aren't already flagged as needing a |
| 12335 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12336 | .fixup contains branches, but only back to the function that | |
| 12337 | hit an exception. */ | |
| 12338 | if (!(isec->has_toc_reloc | |
| 12339 | || (isec->flags & SEC_CODE) == 0 | |
| 12340 | || strcmp (isec->name, ".fixup") == 0 | |
| 12341 | || isec->call_check_done)) | |
| 12342 | { | |
| 12343 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12344 | return FALSE; |
| 8b974ba3 AM |
12345 | } |
| 12346 | /* Make all sections use the TOC assigned for this object file. | |
| 12347 | This will be wrong for pasted sections; We fix that in | |
| 12348 | check_pasted_section(). */ | |
| 12349 | if (elf_gp (isec->owner) != 0) | |
| 12350 | htab->toc_curr = elf_gp (isec->owner); | |
| 12351 | } | |
| 12352 | ||
| 6f20ed8a | 12353 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12354 | return TRUE; |
| 721956f4 AM |
12355 | } |
| 12356 | ||
| 70cc837d AM |
12357 | /* Check that all .init and .fini sections use the same toc, if they |
| 12358 | have toc relocs. */ | |
| 12359 | ||
| 12360 | static bfd_boolean | |
| 12361 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12362 | { | |
| 12363 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12364 | ||
| 12365 | if (o != NULL) | |
| 12366 | { | |
| 12367 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12368 | bfd_vma toc_off = 0; | |
| 12369 | asection *i; | |
| 12370 | ||
| 12371 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12372 | if (i->has_toc_reloc) | |
| 12373 | { | |
| 12374 | if (toc_off == 0) | |
| 6f20ed8a AM |
12375 | toc_off = htab->sec_info[i->id].toc_off; |
| 12376 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12377 | return FALSE; |
| 12378 | } | |
| 6683a28d AM |
12379 | |
| 12380 | if (toc_off == 0) | |
| 12381 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12382 | if (i->makes_toc_func_call) | |
| 12383 | { | |
| 6f20ed8a | 12384 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12385 | break; |
| 12386 | } | |
| 12387 | ||
| 70cc837d AM |
12388 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12389 | if (toc_off != 0) | |
| 12390 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12391 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12392 | } |
| 12393 | return TRUE; | |
| 12394 | } | |
| 12395 | ||
| 12396 | bfd_boolean | |
| 12397 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12398 | { | |
| 12399 | return (check_pasted_section (info, ".init") | |
| 12400 | & check_pasted_section (info, ".fini")); | |
| 12401 | } | |
| 12402 | ||
| 721956f4 AM |
12403 | /* See whether we can group stub sections together. Grouping stub |
| 12404 | sections may result in fewer stubs. More importantly, we need to | |
| 12405 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12406 | .fini output sections respectively, because glibc splits the | |
| 12407 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12408 | the middle of a function is not a good idea. */ | |
| 12409 | ||
| 6f20ed8a AM |
12410 | static bfd_boolean |
| 12411 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12412 | bfd_size_type stub_group_size, |
| 12413 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12414 | { |
| 6f20ed8a AM |
12415 | struct ppc_link_hash_table *htab; |
| 12416 | asection *osec; | |
| 7c8fe5c4 AM |
12417 | bfd_boolean suppress_size_errors; |
| 12418 | ||
| 6f20ed8a AM |
12419 | htab = ppc_hash_table (info); |
| 12420 | if (htab == NULL) | |
| 12421 | return FALSE; | |
| 12422 | ||
| 7c8fe5c4 | 12423 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12424 | if (stub_group_size == 1) |
| 12425 | { | |
| 12426 | /* Default values. */ | |
| 12427 | if (stubs_always_before_branch) | |
| 09f92717 | 12428 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12429 | else |
| 09f92717 | 12430 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12431 | suppress_size_errors = TRUE; |
| 12432 | } | |
| 12433 | ||
| 6f20ed8a | 12434 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12435 | { |
| 6f20ed8a AM |
12436 | asection *tail; |
| 12437 | ||
| 12438 | if (osec->id >= htab->sec_info_arr_size) | |
| 12439 | continue; | |
| 12440 | ||
| 12441 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12442 | while (tail != NULL) |
| 721956f4 | 12443 | { |
| 734b6cf9 AM |
12444 | asection *curr; |
| 12445 | asection *prev; | |
| 12446 | bfd_size_type total; | |
| 12447 | bfd_boolean big_sec; | |
| 12448 | bfd_vma curr_toc; | |
| 6f20ed8a | 12449 | struct map_stub *group; |
| 09f92717 | 12450 | bfd_size_type group_size; |
| 734b6cf9 AM |
12451 | |
| 12452 | curr = tail; | |
| eea6121a | 12453 | total = tail->size; |
| 09f92717 AM |
12454 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12455 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12456 | ? stub_group_size >> 10 : stub_group_size); | |
| 12457 | ||
| 12458 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12459 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12460 | /* xgettext:c-format */ |
| 871b3ab2 | 12461 | _bfd_error_handler (_("%pB section %pA exceeds stub group size"), |
| 4eca0228 | 12462 | tail->owner, tail); |
| 6f20ed8a | 12463 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12464 | |
| 6f20ed8a | 12465 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12466 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12467 | < (ppc64_elf_section_data (prev) != NULL |
| 12468 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12469 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12470 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12471 | curr = prev; |
| 12472 | ||
| 12473 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12474 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12475 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12476 | group_size, in which case we may be toast.) We should |
| 12477 | really be keeping track of the total size of stubs added | |
| 12478 | here, as stubs contribute to the final output section | |
| 12479 | size. That's a little tricky, and this way will only | |
| 12480 | break if stubs added make the total size more than 2^25, | |
| 12481 | ie. for the default stub_group_size, if stubs total more | |
| 12482 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12483 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12484 | if (group == NULL) | |
| 12485 | return FALSE; | |
| 12486 | group->link_sec = curr; | |
| 12487 | group->stub_sec = NULL; | |
| a4b6fadd | 12488 | group->needs_save_res = 0; |
| d4aaa2a0 | 12489 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12490 | group->next = htab->group; |
| 12491 | htab->group = group; | |
| 734b6cf9 | 12492 | do |
| 721956f4 | 12493 | { |
| 6f20ed8a | 12494 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12495 | /* Set up this stub group. */ |
| 6f20ed8a | 12496 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12497 | } |
| 734b6cf9 AM |
12498 | while (tail != curr && (tail = prev) != NULL); |
| 12499 | ||
| 09f92717 | 12500 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12501 | bytes before the stub section can be handled by it too. |
| 12502 | Don't do this if we have a really large section after the | |
| 12503 | stubs, as adding more stubs increases the chance that | |
| 12504 | branches may not reach into the stub section. */ | |
| 12505 | if (!stubs_always_before_branch && !big_sec) | |
| 12506 | { | |
| 12507 | total = 0; | |
| 12508 | while (prev != NULL | |
| 12509 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12510 | < (ppc64_elf_section_data (prev) != NULL |
| 12511 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12512 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12513 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12514 | { |
| 12515 | tail = prev; | |
| 6f20ed8a AM |
12516 | prev = htab->sec_info[tail->id].u.list; |
| 12517 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12518 | } |
| 12519 | } | |
| 12520 | tail = prev; | |
| 721956f4 AM |
12521 | } |
| 12522 | } | |
| 6f20ed8a | 12523 | return TRUE; |
| 721956f4 AM |
12524 | } |
| 12525 | ||
| 58d180e8 AM |
12526 | static const unsigned char glink_eh_frame_cie[] = |
| 12527 | { | |
| 12528 | 0, 0, 0, 16, /* length. */ | |
| 12529 | 0, 0, 0, 0, /* id. */ | |
| 12530 | 1, /* CIE version. */ | |
| 12531 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12532 | 4, /* Code alignment. */ | |
| 12533 | 0x78, /* Data alignment. */ | |
| 12534 | 65, /* RA reg. */ | |
| 12535 | 1, /* Augmentation size. */ | |
| 12536 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12537 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12538 | }; |
| 12539 | ||
| d4aaa2a0 AM |
12540 | static size_t |
| 12541 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12542 | { | |
| 12543 | size_t this_size = 17; | |
| 12544 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12545 | { | |
| 12546 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12547 | if (to_bctrl < 64) | |
| 12548 | this_size += 1; | |
| 12549 | else if (to_bctrl < 256) | |
| 12550 | this_size += 2; | |
| 12551 | else if (to_bctrl < 65536) | |
| 12552 | this_size += 3; | |
| 12553 | else | |
| 12554 | this_size += 5; | |
| 12555 | this_size += 6; | |
| 12556 | } | |
| 12557 | this_size = (this_size + align - 1) & -align; | |
| 12558 | return this_size; | |
| 12559 | } | |
| 12560 | ||
| d969d15f AM |
12561 | /* Stripping output sections is normally done before dynamic section |
| 12562 | symbols have been allocated. This function is called later, and | |
| 12563 | handles cases like htab->brlt which is mapped to its own output | |
| 12564 | section. */ | |
| 12565 | ||
| 12566 | static void | |
| 12567 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12568 | { | |
| 12569 | if (isec->size == 0 | |
| 12570 | && isec->output_section->size == 0 | |
| 53d8967a | 12571 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12572 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12573 | isec->output_section) | |
| 12574 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12575 | { | |
| 12576 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12577 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12578 | info->output_bfd->section_count--; | |
| 12579 | } | |
| 12580 | } | |
| 12581 | ||
| 721956f4 AM |
12582 | /* Determine and set the size of the stub section for a final link. |
| 12583 | ||
| 12584 | The basic idea here is to examine all the relocations looking for | |
| 12585 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12586 | instruction. */ | |
| 12587 | ||
| b34976b6 | 12588 | bfd_boolean |
| e7d1c40c | 12589 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12590 | { |
| 12591 | bfd_size_type stub_group_size; | |
| b34976b6 | 12592 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12593 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12594 | ||
| 4dfe6ac6 NC |
12595 | if (htab == NULL) |
| 12596 | return FALSE; | |
| 12597 | ||
| 0e1862bb | 12598 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12599 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12600 | if (!htab->opd_abi) |
| e7d1c40c AM |
12601 | htab->params->plt_thread_safe = 0; |
| 12602 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12603 | { |
| e2458743 | 12604 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12605 | { |
| 12606 | "pthread_create", | |
| 12607 | /* libstdc++ */ | |
| 12608 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12609 | /* librt */ | |
| 12610 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12611 | "mq_notify", "create_timer", | |
| 12612 | /* libanl */ | |
| 12613 | "getaddrinfo_a", | |
| 12614 | /* libgomp */ | |
| 2300b5a1 | 12615 | "GOMP_parallel", |
| 794e51c0 | 12616 | "GOMP_parallel_start", |
| 2300b5a1 | 12617 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12618 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12619 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12620 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12621 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12622 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12623 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12624 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12625 | "GOMP_parallel_sections", |
| 68ffbac6 | 12626 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12627 | /* libgo */ |
| 12628 | "__go_go", | |
| 794e51c0 AM |
12629 | }; |
| 12630 | unsigned i; | |
| 12631 | ||
| a4b6fadd | 12632 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12633 | { |
| 12634 | struct elf_link_hash_entry *h; | |
| 12635 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12636 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12637 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12638 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12639 | break; |
| 12640 | } | |
| 12641 | } | |
| e7d1c40c AM |
12642 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12643 | if (htab->params->group_size < 0) | |
| 12644 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12645 | else |
| e7d1c40c | 12646 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12647 | |
| 6f20ed8a AM |
12648 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12649 | return FALSE; | |
| 721956f4 | 12650 | |
| c9301e31 AM |
12651 | #define STUB_SHRINK_ITER 20 |
| 12652 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12653 | exit on a stub section shrinking. This is to break out of a | |
| 12654 | pathological case where adding stubs on one iteration decreases | |
| 12655 | section gaps (perhaps due to alignment), which then requires | |
| 12656 | fewer or smaller stubs on the next iteration. */ | |
| 12657 | ||
| 721956f4 AM |
12658 | while (1) |
| 12659 | { | |
| 12660 | bfd *input_bfd; | |
| 12661 | unsigned int bfd_indx; | |
| a4b6fadd | 12662 | struct map_stub *group; |
| 721956f4 AM |
12663 | |
| 12664 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12665 | |
| 12666 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12667 | input_bfd != NULL; | |
| c72f2fb2 | 12668 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12669 | { |
| 12670 | Elf_Internal_Shdr *symtab_hdr; | |
| 12671 | asection *section; | |
| 6cdc0ccc | 12672 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12673 | |
| 0c8d6e5c | 12674 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12675 | continue; |
| 12676 | ||
| 721956f4 | 12677 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12678 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12679 | if (symtab_hdr->sh_info == 0) |
| 12680 | continue; | |
| 12681 | ||
| 721956f4 AM |
12682 | /* Walk over each section attached to the input bfd. */ |
| 12683 | for (section = input_bfd->sections; | |
| 12684 | section != NULL; | |
| 12685 | section = section->next) | |
| 12686 | { | |
| 721956f4 | 12687 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12688 | |
| 12689 | /* If there aren't any relocs, then there's nothing more | |
| 12690 | to do. */ | |
| 12691 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12692 | || (section->flags & SEC_ALLOC) == 0 |
| 12693 | || (section->flags & SEC_LOAD) == 0 | |
| 12694 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12695 | || section->reloc_count == 0) |
| 12696 | continue; | |
| 12697 | ||
| 12698 | /* If this section is a link-once section that will be | |
| 12699 | discarded, then don't create any stubs. */ | |
| 12700 | if (section->output_section == NULL | |
| 927be08e | 12701 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12702 | continue; |
| 12703 | ||
| 1e2f5b6e AM |
12704 | /* Get the relocs. */ |
| 12705 | internal_relocs | |
| 4ce794b7 | 12706 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12707 | info->keep_memory); |
| 721956f4 | 12708 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12709 | goto error_ret_free_local; |
| 721956f4 AM |
12710 | |
| 12711 | /* Now examine each relocation. */ | |
| 12712 | irela = internal_relocs; | |
| 12713 | irelaend = irela + section->reloc_count; | |
| 12714 | for (; irela < irelaend; irela++) | |
| 12715 | { | |
| 4ce794b7 AM |
12716 | enum elf_ppc64_reloc_type r_type; |
| 12717 | unsigned int r_indx; | |
| 721956f4 AM |
12718 | enum ppc_stub_type stub_type; |
| 12719 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12720 | asection *sym_sec, *code_sec; |
| e054468f | 12721 | bfd_vma sym_value, code_value; |
| 721956f4 | 12722 | bfd_vma destination; |
| 6911b7dc | 12723 | unsigned long local_off; |
| 8843416a | 12724 | bfd_boolean ok_dest; |
| 721956f4 | 12725 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12726 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12727 | struct elf_link_hash_entry *h; |
| 12728 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12729 | char *stub_name; |
| 12730 | const asection *id_sec; | |
| 74f0fb50 | 12731 | struct _opd_sec_data *opd; |
| e054468f | 12732 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12733 | |
| 12734 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12735 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12736 | ||
| 4ce794b7 | 12737 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12738 | { |
| 12739 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12740 | goto error_ret_free_internal; |
| 721956f4 AM |
12741 | } |
| 12742 | ||
| 12743 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12744 | if (r_type != R_PPC64_REL24 |
| 12745 | && r_type != R_PPC64_REL14 | |
| 12746 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12747 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12748 | continue; |
| 12749 | ||
| 12750 | /* Now determine the call target, its name, value, | |
| 12751 | section. */ | |
| 411e1bfb AM |
12752 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12753 | r_indx, input_bfd)) | |
| 12754 | goto error_ret_free_internal; | |
| 12755 | hash = (struct ppc_link_hash_entry *) h; | |
| 12756 | ||
| 8843416a | 12757 | ok_dest = FALSE; |
| 8387904d | 12758 | fdh = NULL; |
| 7fe2b9a6 | 12759 | sym_value = 0; |
| 411e1bfb | 12760 | if (hash == NULL) |
| 721956f4 | 12761 | { |
| 411e1bfb | 12762 | sym_value = sym->st_value; |
| c27b8c2a AM |
12763 | if (sym_sec != NULL |
| 12764 | && sym_sec->output_section != NULL) | |
| 12765 | ok_dest = TRUE; | |
| 721956f4 | 12766 | } |
| 7fe2b9a6 AM |
12767 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12768 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12769 | { | |
| 12770 | sym_value = hash->elf.root.u.def.value; | |
| 12771 | if (sym_sec->output_section != NULL) | |
| 12772 | ok_dest = TRUE; | |
| 12773 | } | |
| 12774 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12775 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12776 | { |
| 99877b66 | 12777 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12778 | use the func descriptor sym instead if it is |
| 12779 | defined. */ | |
| ceb1f1ef | 12780 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12781 | && hash->oh != NULL) |
| 8387904d | 12782 | { |
| 8c5b4e52 | 12783 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12784 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12785 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12786 | { | |
| 12787 | sym_sec = fdh->elf.root.u.def.section; | |
| 12788 | sym_value = fdh->elf.root.u.def.value; | |
| 12789 | if (sym_sec->output_section != NULL) | |
| 12790 | ok_dest = TRUE; | |
| 12791 | } | |
| 99877b66 AM |
12792 | else |
| 12793 | fdh = NULL; | |
| 8387904d | 12794 | } |
| 7fe2b9a6 AM |
12795 | } |
| 12796 | else | |
| 12797 | { | |
| 12798 | bfd_set_error (bfd_error_bad_value); | |
| 12799 | goto error_ret_free_internal; | |
| 721956f4 AM |
12800 | } |
| 12801 | ||
| 8843416a | 12802 | destination = 0; |
| 6911b7dc | 12803 | local_off = 0; |
| 8843416a AM |
12804 | if (ok_dest) |
| 12805 | { | |
| 12806 | sym_value += irela->r_addend; | |
| 12807 | destination = (sym_value | |
| 12808 | + sym_sec->output_offset | |
| 12809 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12810 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12811 | ? hash->elf.other | |
| 12812 | : sym->st_other); | |
| 8843416a AM |
12813 | } |
| 12814 | ||
| 8387904d | 12815 | code_sec = sym_sec; |
| e054468f | 12816 | code_value = sym_value; |
| 74f0fb50 AM |
12817 | opd = get_opd_info (sym_sec); |
| 12818 | if (opd != NULL) | |
| 8387904d AM |
12819 | { |
| 12820 | bfd_vma dest; | |
| 12821 | ||
| 74f0fb50 | 12822 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12823 | { |
| 51aecdc5 | 12824 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12825 | if (adjust == -1) |
| 12826 | continue; | |
| e054468f | 12827 | code_value += adjust; |
| 8387904d AM |
12828 | sym_value += adjust; |
| 12829 | } | |
| 12830 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12831 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12832 | if (dest != (bfd_vma) -1) |
| 12833 | { | |
| 12834 | destination = dest; | |
| 12835 | if (fdh != NULL) | |
| 12836 | { | |
| 12837 | /* Fixup old ABI sym to point at code | |
| 12838 | entry. */ | |
| 99877b66 | 12839 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12840 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12841 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12842 | } |
| 12843 | } | |
| 12844 | } | |
| 12845 | ||
| 721956f4 | 12846 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12847 | plt_ent = NULL; |
| 721956f4 | 12848 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12849 | &plt_ent, destination, |
| 12850 | local_off); | |
| ad8e1ba5 AM |
12851 | |
| 12852 | if (stub_type != ppc_stub_plt_call) | |
| 12853 | { | |
| 12854 | /* Check whether we need a TOC adjusting stub. | |
| 12855 | Since the linker pastes together pieces from | |
| 12856 | different object files when creating the | |
| 12857 | _init and _fini functions, it may be that a | |
| 12858 | call to what looks like a local sym is in | |
| 12859 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12860 | if (code_sec != NULL |
| 12861 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12862 | && (htab->sec_info[code_sec->id].toc_off |
| 12863 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12864 | && (code_sec->has_toc_reloc |
| 12865 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12866 | stub_type = ppc_stub_long_branch_r2off; |
| 12867 | } | |
| 12868 | ||
| 721956f4 AM |
12869 | if (stub_type == ppc_stub_none) |
| 12870 | continue; | |
| 12871 | ||
| 411e1bfb AM |
12872 | /* __tls_get_addr calls might be eliminated. */ |
| 12873 | if (stub_type != ppc_stub_plt_call | |
| 12874 | && hash != NULL | |
| 8387904d AM |
12875 | && (hash == htab->tls_get_addr |
| 12876 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12877 | && section->has_tls_reloc |
| 12878 | && irela != internal_relocs) | |
| 12879 | { | |
| 12880 | /* Get tls info. */ | |
| f961d9dd | 12881 | unsigned char *tls_mask; |
| 411e1bfb | 12882 | |
| 3a71aa26 | 12883 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12884 | irela - 1, input_bfd)) |
| 12885 | goto error_ret_free_internal; | |
| 37da22e5 | 12886 | if ((*tls_mask & TLS_TLS) != 0) |
| 411e1bfb AM |
12887 | continue; |
| 12888 | } | |
| 12889 | ||
| f378ab09 | 12890 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12891 | { |
| 6e1816be AM |
12892 | if (!htab->opd_abi |
| 12893 | && htab->params->plt_localentry0 != 0 | |
| 12894 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12895 | htab->has_plt_localentry0 = 1; | |
| 12896 | else if (irela + 1 < irelaend | |
| 12897 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12898 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12899 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12900 | { |
| 12901 | if (!tocsave_find (htab, INSERT, | |
| 12902 | &local_syms, irela + 1, input_bfd)) | |
| 12903 | goto error_ret_free_internal; | |
| 12904 | } | |
| f378ab09 AM |
12905 | else |
| 12906 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12907 | } |
| 3b421ab3 | 12908 | |
| 721956f4 | 12909 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12910 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12911 | |
| 12912 | /* Get the name of this stub. */ | |
| 12913 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12914 | if (!stub_name) | |
| 12915 | goto error_ret_free_internal; | |
| 12916 | ||
| 12917 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12918 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12919 | if (stub_entry != NULL) |
| 12920 | { | |
| 12921 | /* The proper stub has already been created. */ | |
| 12922 | free (stub_name); | |
| 794e51c0 AM |
12923 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12924 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12925 | continue; |
| 12926 | } | |
| 12927 | ||
| 25f53a85 | 12928 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12929 | if (stub_entry == NULL) |
| 12930 | { | |
| 12931 | free (stub_name); | |
| 6cdc0ccc AM |
12932 | error_ret_free_internal: |
| 12933 | if (elf_section_data (section)->relocs == NULL) | |
| 12934 | free (internal_relocs); | |
| 12935 | error_ret_free_local: | |
| 12936 | if (local_syms != NULL | |
| 12937 | && (symtab_hdr->contents | |
| 12938 | != (unsigned char *) local_syms)) | |
| 12939 | free (local_syms); | |
| b34976b6 | 12940 | return FALSE; |
| 721956f4 AM |
12941 | } |
| 12942 | ||
| ad8e1ba5 | 12943 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12944 | if (stub_type != ppc_stub_plt_call |
| 12945 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12946 | { |
| 12947 | stub_entry->target_value = code_value; | |
| 12948 | stub_entry->target_section = code_sec; | |
| 12949 | } | |
| 12950 | else | |
| 12951 | { | |
| 12952 | stub_entry->target_value = sym_value; | |
| 12953 | stub_entry->target_section = sym_sec; | |
| 12954 | } | |
| 721956f4 | 12955 | stub_entry->h = hash; |
| e054468f | 12956 | stub_entry->plt_ent = plt_ent; |
| 2d7ad24e AM |
12957 | stub_entry->symtype |
| 12958 | = hash ? hash->elf.type : ELF_ST_TYPE (sym->st_info); | |
| 6911b7dc | 12959 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12960 | |
| 12961 | if (stub_entry->h != NULL) | |
| 12962 | htab->stub_globals += 1; | |
| 721956f4 AM |
12963 | } |
| 12964 | ||
| 12965 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12966 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12967 | free (internal_relocs); |
| 721956f4 | 12968 | } |
| 6cdc0ccc AM |
12969 | |
| 12970 | if (local_syms != NULL | |
| 12971 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12972 | { | |
| 12973 | if (!info->keep_memory) | |
| 12974 | free (local_syms); | |
| 12975 | else | |
| 12976 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12977 | } | |
| 721956f4 AM |
12978 | } |
| 12979 | ||
| 5c3dead3 | 12980 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12981 | stub sections. */ |
| d4aaa2a0 AM |
12982 | for (group = htab->group; group != NULL; group = group->next) |
| 12983 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12984 | { |
| d4aaa2a0 AM |
12985 | asection *stub_sec = group->stub_sec; |
| 12986 | ||
| ea3d7d1c AM |
12987 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12988 | || stub_sec->rawsize < stub_sec->size) | |
| 12989 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12990 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12991 | stub_sec->size = 0; |
| 12992 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12993 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12994 | } |
| eea6121a | 12995 | |
| ba21f564 AM |
12996 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12997 | || htab->brlt->rawsize < htab->brlt->size) | |
| 12998 | htab->brlt->rawsize = htab->brlt->size; | |
| eea6121a | 12999 | htab->brlt->size = 0; |
| 84f5d08e AM |
13000 | htab->brlt->reloc_count = 0; |
| 13001 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 13002 | if (htab->relbrlt != NULL) |
| eea6121a | 13003 | htab->relbrlt->size = 0; |
| 721956f4 | 13004 | |
| 63bc6f6c | 13005 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 13006 | |
| a4b6fadd AM |
13007 | for (group = htab->group; group != NULL; group = group->next) |
| 13008 | if (group->needs_save_res) | |
| 13009 | group->stub_sec->size += htab->sfpr->size; | |
| 13010 | ||
| 176a0d42 AM |
13011 | if (info->emitrelocations |
| 13012 | && htab->glink != NULL && htab->glink->size != 0) | |
| 13013 | { | |
| 13014 | htab->glink->reloc_count = 1; | |
| 13015 | htab->glink->flags |= SEC_RELOC; | |
| 13016 | } | |
| 13017 | ||
| 58d180e8 AM |
13018 | if (htab->glink_eh_frame != NULL |
| 13019 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 2d0d44d5 | 13020 | && htab->glink_eh_frame->output_section->size > 8) |
| 58d180e8 | 13021 | { |
| 2e0ce1c8 | 13022 | size_t size = 0, align = 4; |
| 58d180e8 | 13023 | |
| d4aaa2a0 AM |
13024 | for (group = htab->group; group != NULL; group = group->next) |
| 13025 | if (group->stub_sec != NULL) | |
| 13026 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 13027 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 13028 | size += (24 + align - 1) & -align; |
| 58d180e8 | 13029 | if (size != 0) |
| 2e0ce1c8 AM |
13030 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 13031 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 13032 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
13033 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 13034 | htab->glink_eh_frame->size = size; | |
| 13035 | } | |
| 13036 | ||
| e7d1c40c | 13037 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13038 | for (group = htab->group; group != NULL; group = group->next) |
| 13039 | if (group->stub_sec != NULL) | |
| 691d2e9a AM |
13040 | { |
| 13041 | int align = abs (htab->params->plt_stub_align); | |
| 13042 | group->stub_sec->size | |
| 13043 | = (group->stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 13044 | } | |
| d4aaa2a0 AM |
13045 | |
| 13046 | for (group = htab->group; group != NULL; group = group->next) | |
| 13047 | if (group->stub_sec != NULL | |
| 13048 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 13049 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 13050 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
13051 | break; |
| 13052 | ||
| d4aaa2a0 | 13053 | if (group == NULL |
| ba21f564 AM |
13054 | && (htab->brlt->rawsize == htab->brlt->size |
| 13055 | || (htab->stub_iteration > STUB_SHRINK_ITER | |
| 13056 | && htab->brlt->rawsize > htab->brlt->size)) | |
| 58d180e8 AM |
13057 | && (htab->glink_eh_frame == NULL |
| 13058 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
13059 | break; |
| 13060 | ||
| 721956f4 | 13061 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 13062 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
13063 | } |
| 13064 | ||
| da44f4e5 AM |
13065 | if (htab->glink_eh_frame != NULL |
| 13066 | && htab->glink_eh_frame->size != 0) | |
| 13067 | { | |
| 13068 | bfd_vma val; | |
| 13069 | bfd_byte *p, *last_fde; | |
| 13070 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 13071 | struct map_stub *group; |
| da44f4e5 AM |
13072 | |
| 13073 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 13074 | if (p == NULL) | |
| 13075 | return FALSE; | |
| 13076 | htab->glink_eh_frame->contents = p; | |
| 13077 | last_fde = p; | |
| 2e0ce1c8 | 13078 | align = 4; |
| da44f4e5 AM |
13079 | |
| 13080 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 13081 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 13082 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 13083 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 13084 | p += last_fde_len + 4; |
| da44f4e5 | 13085 | |
| d4aaa2a0 AM |
13086 | for (group = htab->group; group != NULL; group = group->next) |
| 13087 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
13088 | { |
| 13089 | last_fde = p; | |
| d4aaa2a0 | 13090 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 13091 | /* FDE length. */ |
| 2e0ce1c8 | 13092 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
13093 | p += 4; |
| 13094 | /* CIE pointer. */ | |
| 13095 | val = p - htab->glink_eh_frame->contents; | |
| 13096 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 13097 | p += 4; | |
| 13098 | /* Offset to stub section, written later. */ | |
| 13099 | p += 4; | |
| 13100 | /* stub section size. */ | |
| d4aaa2a0 | 13101 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
13102 | p += 4; |
| 13103 | /* Augmentation. */ | |
| 13104 | p += 1; | |
| d4aaa2a0 AM |
13105 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 13106 | { | |
| 13107 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 13108 | ||
| 13109 | /* This FDE needs more than just the default. | |
| 13110 | Describe __tls_get_addr_opt stub LR. */ | |
| 13111 | if (to_bctrl < 64) | |
| 13112 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 13113 | else if (to_bctrl < 256) | |
| 13114 | { | |
| 13115 | *p++ = DW_CFA_advance_loc1; | |
| 13116 | *p++ = to_bctrl; | |
| 13117 | } | |
| 13118 | else if (to_bctrl < 65536) | |
| 13119 | { | |
| 13120 | *p++ = DW_CFA_advance_loc2; | |
| 13121 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 13122 | p += 2; | |
| 13123 | } | |
| 13124 | else | |
| 13125 | { | |
| 13126 | *p++ = DW_CFA_advance_loc4; | |
| 13127 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 13128 | p += 4; | |
| 13129 | } | |
| 13130 | *p++ = DW_CFA_offset_extended_sf; | |
| 13131 | *p++ = 65; | |
| 13132 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 13133 | *p++ = DW_CFA_advance_loc + 4; | |
| 13134 | *p++ = DW_CFA_restore_extended; | |
| 13135 | *p++ = 65; | |
| 13136 | } | |
| da44f4e5 | 13137 | /* Pad. */ |
| d4aaa2a0 | 13138 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
13139 | } |
| 13140 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 13141 | { | |
| 13142 | last_fde = p; | |
| 2e0ce1c8 | 13143 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 13144 | /* FDE length. */ |
| 2e0ce1c8 | 13145 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
13146 | p += 4; |
| 13147 | /* CIE pointer. */ | |
| 13148 | val = p - htab->glink_eh_frame->contents; | |
| 13149 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 13150 | p += 4; | |
| 13151 | /* Offset to .glink, written later. */ | |
| 13152 | p += 4; | |
| 13153 | /* .glink size. */ | |
| 13154 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 13155 | p += 4; | |
| 13156 | /* Augmentation. */ | |
| 13157 | p += 1; | |
| 13158 | ||
| 13159 | *p++ = DW_CFA_advance_loc + 1; | |
| 13160 | *p++ = DW_CFA_register; | |
| 13161 | *p++ = 65; | |
| 9f08fa5c | 13162 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 13163 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
13164 | *p++ = DW_CFA_restore_extended; |
| 13165 | *p++ = 65; | |
| 2e0ce1c8 | 13166 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
13167 | } |
| 13168 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 13169 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 13170 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 13171 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 13172 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 13173 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
13174 | htab->glink_eh_frame->size = size + pad; |
| 13175 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 13176 | } | |
| 13177 | ||
| d969d15f AM |
13178 | maybe_strip_output (info, htab->brlt); |
| 13179 | if (htab->glink_eh_frame != NULL) | |
| 13180 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 13181 | |
| b34976b6 | 13182 | return TRUE; |
| 721956f4 AM |
13183 | } |
| 13184 | ||
| 13185 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 13186 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 13187 | |
| 805fc799 | 13188 | bfd_vma |
| 1c865ab2 | 13189 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 13190 | { |
| 805fc799 | 13191 | asection *s; |
| a27e685f | 13192 | bfd_vma TOCstart, adjust; |
| 721956f4 | 13193 | |
| 43417696 AM |
13194 | if (info != NULL) |
| 13195 | { | |
| 13196 | struct elf_link_hash_entry *h; | |
| 13197 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 13198 | ||
| 13199 | if (is_elf_hash_table (htab) | |
| 13200 | && htab->hgot != NULL) | |
| 13201 | h = htab->hgot; | |
| 13202 | else | |
| 13203 | { | |
| 13204 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 13205 | if (is_elf_hash_table (htab)) | |
| 13206 | htab->hgot = h; | |
| 13207 | } | |
| 13208 | if (h != NULL | |
| 13209 | && h->root.type == bfd_link_hash_defined | |
| 13210 | && !h->root.linker_def | |
| 13211 | && (!is_elf_hash_table (htab) | |
| 13212 | || h->def_regular)) | |
| 13213 | { | |
| 13214 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 13215 | + h->root.u.def.section->output_offset | |
| 13216 | + h->root.u.def.section->output_section->vma); | |
| 13217 | _bfd_set_gp_value (obfd, TOCstart); | |
| 13218 | return TOCstart; | |
| 13219 | } | |
| 13220 | } | |
| 13221 | ||
| 805fc799 AM |
13222 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 13223 | order. The TOC starts where the first of these sections starts. */ | |
| 13224 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 13225 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 13226 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 13227 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 13228 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 13229 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 13230 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 13231 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
13232 | { |
| 13233 | /* This may happen for | |
| 13234 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 13235 | .toc directive | |
| 13236 | o bad linker script | |
| 13237 | o --gc-sections and empty TOC sections | |
| 13238 | ||
| 13239 | FIXME: Warn user? */ | |
| 13240 | ||
| 13241 | /* Look for a likely section. We probably won't even be | |
| 13242 | using TOCstart. */ | |
| 13243 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
13244 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 13245 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
13246 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 13247 | break; | |
| 721956f4 | 13248 | if (s == NULL) |
| 805fc799 | 13249 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 13250 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
13251 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 13252 | break; | |
| 721956f4 | 13253 | if (s == NULL) |
| 805fc799 | 13254 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
13255 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 13256 | == SEC_ALLOC) | |
| 805fc799 | 13257 | break; |
| 721956f4 | 13258 | if (s == NULL) |
| 805fc799 | 13259 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 13260 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
13261 | break; |
| 13262 | } | |
| 721956f4 | 13263 | |
| 805fc799 AM |
13264 | TOCstart = 0; |
| 13265 | if (s != NULL) | |
| 13266 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 13267 | |
| a27e685f AM |
13268 | /* Force alignment. */ |
| 13269 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 13270 | TOCstart -= adjust; | |
| 1c865ab2 AM |
13271 | _bfd_set_gp_value (obfd, TOCstart); |
| 13272 | ||
| 810d4e75 | 13273 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
13274 | { |
| 13275 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 13276 | ||
| 810d4e75 AM |
13277 | if (htab != NULL) |
| 13278 | { | |
| 13279 | if (htab->elf.hgot != NULL) | |
| 13280 | { | |
| a27e685f | 13281 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
13282 | htab->elf.hgot->root.u.def.section = s; |
| 13283 | } | |
| 13284 | } | |
| 13285 | else | |
| 1c865ab2 | 13286 | { |
| 810d4e75 AM |
13287 | struct bfd_link_hash_entry *bh = NULL; |
| 13288 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
13289 | s, TOC_BASE_OFF - adjust, |
| 13290 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
13291 | } |
| 13292 | } | |
| 805fc799 | 13293 | return TOCstart; |
| 721956f4 AM |
13294 | } |
| 13295 | ||
| a345bc8d | 13296 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 49c09209 | 13297 | write out any global entry stubs, and PLT relocations. */ |
| a345bc8d AM |
13298 | |
| 13299 | static bfd_boolean | |
| 49c09209 | 13300 | build_global_entry_stubs_and_plt (struct elf_link_hash_entry *h, void *inf) |
| a345bc8d AM |
13301 | { |
| 13302 | struct bfd_link_info *info; | |
| 13303 | struct ppc_link_hash_table *htab; | |
| 49c09209 | 13304 | struct plt_entry *ent; |
| a345bc8d AM |
13305 | asection *s; |
| 13306 | ||
| 13307 | if (h->root.type == bfd_link_hash_indirect) | |
| 13308 | return TRUE; | |
| 13309 | ||
| 49c09209 AM |
13310 | info = inf; |
| 13311 | htab = ppc_hash_table (info); | |
| 13312 | if (htab == NULL) | |
| 13313 | return FALSE; | |
| 13314 | ||
| 13315 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 13316 | if (ent->plt.offset != (bfd_vma) -1) | |
| 13317 | { | |
| 13318 | /* This symbol has an entry in the procedure linkage | |
| 13319 | table. Set it up. */ | |
| 13320 | Elf_Internal_Rela rela; | |
| 2d7ad24e | 13321 | asection *plt, *relplt; |
| 49c09209 AM |
13322 | bfd_byte *loc; |
| 13323 | ||
| 13324 | if (!htab->elf.dynamic_sections_created | |
| 13325 | || h->dynindx == -1) | |
| 13326 | { | |
| 13327 | if (!(h->def_regular | |
| 13328 | && (h->root.type == bfd_link_hash_defined | |
| 13329 | || h->root.type == bfd_link_hash_defweak))) | |
| 13330 | continue; | |
| 2d7ad24e AM |
13331 | if (h->type == STT_GNU_IFUNC) |
| 13332 | { | |
| 13333 | plt = htab->elf.iplt; | |
| 13334 | relplt = htab->elf.irelplt; | |
| 13335 | htab->local_ifunc_resolver = 1; | |
| 13336 | if (htab->opd_abi) | |
| 13337 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 13338 | else | |
| 13339 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 13340 | } | |
| 49c09209 | 13341 | else |
| 2d7ad24e AM |
13342 | { |
| 13343 | plt = htab->pltlocal; | |
| 13344 | if (bfd_link_pic (info)) | |
| 13345 | { | |
| 13346 | relplt = htab->relpltlocal; | |
| 13347 | if (htab->opd_abi) | |
| 13348 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_SLOT); | |
| 13349 | else | |
| 13350 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 13351 | } | |
| 13352 | else | |
| 13353 | relplt = NULL; | |
| 13354 | } | |
| 49c09209 AM |
13355 | rela.r_addend = (h->root.u.def.value |
| 13356 | + h->root.u.def.section->output_offset | |
| 13357 | + h->root.u.def.section->output_section->vma | |
| 13358 | + ent->addend); | |
| 2d7ad24e AM |
13359 | |
| 13360 | if (relplt == NULL) | |
| 13361 | { | |
| 13362 | loc = plt->contents + ent->plt.offset; | |
| 13363 | bfd_put_64 (info->output_bfd, rela.r_addend, loc); | |
| 13364 | if (htab->opd_abi) | |
| 13365 | { | |
| 13366 | bfd_vma toc = elf_gp (info->output_bfd); | |
| 13367 | toc += htab->sec_info[h->root.u.def.section->id].toc_off; | |
| 13368 | bfd_put_64 (info->output_bfd, toc, loc + 8); | |
| 13369 | } | |
| 13370 | } | |
| 13371 | else | |
| 13372 | { | |
| 13373 | rela.r_offset = (plt->output_section->vma | |
| 13374 | + plt->output_offset | |
| 13375 | + ent->plt.offset); | |
| 13376 | loc = relplt->contents + (relplt->reloc_count++ | |
| 13377 | * sizeof (Elf64_External_Rela)); | |
| 13378 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, loc); | |
| 13379 | } | |
| 49c09209 AM |
13380 | } |
| 13381 | else | |
| 13382 | { | |
| 13383 | rela.r_offset = (htab->elf.splt->output_section->vma | |
| 13384 | + htab->elf.splt->output_offset | |
| 13385 | + ent->plt.offset); | |
| 13386 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); | |
| 13387 | rela.r_addend = ent->addend; | |
| 13388 | loc = (htab->elf.srelplt->contents | |
| 13389 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) | |
| 13390 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 13391 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) | |
| 13392 | htab->maybe_local_ifunc_resolver = 1; | |
| 2d7ad24e | 13393 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, loc); |
| 49c09209 | 13394 | } |
| 49c09209 AM |
13395 | } |
| 13396 | ||
| a345bc8d AM |
13397 | if (!h->pointer_equality_needed) |
| 13398 | return TRUE; | |
| 13399 | ||
| 13400 | if (h->def_regular) | |
| 13401 | return TRUE; | |
| 13402 | ||
| 9e390558 | 13403 | s = htab->global_entry; |
| 49c09209 AM |
13404 | if (s == NULL || s->size == 0) |
| 13405 | return TRUE; | |
| 13406 | ||
| 13407 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 13408 | if (ent->plt.offset != (bfd_vma) -1 | |
| 13409 | && ent->addend == 0) | |
| a345bc8d AM |
13410 | { |
| 13411 | bfd_byte *p; | |
| 13412 | asection *plt; | |
| 13413 | bfd_vma off; | |
| 13414 | ||
| a345bc8d | 13415 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 13416 | plt = htab->elf.splt; |
| a345bc8d AM |
13417 | if (!htab->elf.dynamic_sections_created |
| 13418 | || h->dynindx == -1) | |
| 2d7ad24e AM |
13419 | { |
| 13420 | if (h->type == STT_GNU_IFUNC) | |
| 13421 | plt = htab->elf.iplt; | |
| 13422 | else | |
| 13423 | plt = htab->pltlocal; | |
| 13424 | } | |
| 49c09209 | 13425 | off = ent->plt.offset + plt->output_offset + plt->output_section->vma; |
| a345bc8d AM |
13426 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; |
| 13427 | ||
| 13428 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13429 | { | |
| 13430 | info->callbacks->einfo | |
| c1c8c1ef | 13431 | (_("%P: linkage table error against `%pT'\n"), |
| a345bc8d AM |
13432 | h->root.root.string); |
| 13433 | bfd_set_error (bfd_error_bad_value); | |
| 13434 | htab->stub_error = TRUE; | |
| 13435 | } | |
| 13436 | ||
| 7341d5e2 AM |
13437 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13438 | if (htab->params->emit_stub_syms) | |
| 13439 | { | |
| 13440 | size_t len = strlen (h->root.root.string); | |
| 13441 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13442 | ||
| 13443 | if (name == NULL) | |
| 13444 | return FALSE; | |
| 13445 | ||
| 13446 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13447 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13448 | if (h == NULL) | |
| 13449 | return FALSE; | |
| 13450 | if (h->root.type == bfd_link_hash_new) | |
| 13451 | { | |
| 13452 | h->root.type = bfd_link_hash_defined; | |
| 13453 | h->root.u.def.section = s; | |
| 13454 | h->root.u.def.value = p - s->contents; | |
| 13455 | h->ref_regular = 1; | |
| 13456 | h->def_regular = 1; | |
| 13457 | h->ref_regular_nonweak = 1; | |
| 13458 | h->forced_local = 1; | |
| 13459 | h->non_elf = 0; | |
| 2ec55de3 | 13460 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13461 | } |
| 13462 | } | |
| 13463 | ||
| a345bc8d AM |
13464 | if (PPC_HA (off) != 0) |
| 13465 | { | |
| 13466 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13467 | p += 4; | |
| 13468 | } | |
| 13469 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13470 | p += 4; | |
| 13471 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13472 | p += 4; | |
| 407aa07c | 13473 | bfd_put_32 (s->owner, BCTR, p); |
| a345bc8d AM |
13474 | break; |
| 13475 | } | |
| 13476 | return TRUE; | |
| 13477 | } | |
| 13478 | ||
| 49c09209 AM |
13479 | /* Write PLT relocs for locals. */ |
| 13480 | ||
| 13481 | static bfd_boolean | |
| 13482 | write_plt_relocs_for_local_syms (struct bfd_link_info *info) | |
| 13483 | { | |
| 13484 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 13485 | bfd *ibfd; | |
| 13486 | ||
| 13487 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) | |
| 13488 | { | |
| 13489 | struct got_entry **lgot_ents, **end_lgot_ents; | |
| 13490 | struct plt_entry **local_plt, **lplt, **end_local_plt; | |
| 13491 | Elf_Internal_Shdr *symtab_hdr; | |
| 13492 | bfd_size_type locsymcount; | |
| 13493 | Elf_Internal_Sym *local_syms = NULL; | |
| 13494 | struct plt_entry *ent; | |
| 13495 | ||
| 13496 | if (!is_ppc64_elf (ibfd)) | |
| 13497 | continue; | |
| 13498 | ||
| 13499 | lgot_ents = elf_local_got_ents (ibfd); | |
| 13500 | if (!lgot_ents) | |
| 13501 | continue; | |
| 13502 | ||
| 13503 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 13504 | locsymcount = symtab_hdr->sh_info; | |
| 13505 | end_lgot_ents = lgot_ents + locsymcount; | |
| 13506 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 13507 | end_local_plt = local_plt + locsymcount; | |
| 13508 | for (lplt = local_plt; lplt < end_local_plt; ++lplt) | |
| 13509 | for (ent = *lplt; ent != NULL; ent = ent->next) | |
| 13510 | if (ent->plt.offset != (bfd_vma) -1) | |
| 13511 | { | |
| 13512 | Elf_Internal_Sym *sym; | |
| 13513 | asection *sym_sec; | |
| 13514 | asection *plt, *relplt; | |
| 13515 | bfd_byte *loc; | |
| 13516 | bfd_vma val; | |
| 49c09209 AM |
13517 | |
| 13518 | if (!get_sym_h (NULL, &sym, &sym_sec, NULL, &local_syms, | |
| 13519 | lplt - local_plt, ibfd)) | |
| 13520 | { | |
| 13521 | if (local_syms != NULL | |
| 13522 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 13523 | free (local_syms); | |
| 13524 | return FALSE; | |
| 13525 | } | |
| 13526 | ||
| 13527 | val = sym->st_value + ent->addend; | |
| 13528 | val += PPC64_LOCAL_ENTRY_OFFSET (sym->st_other); | |
| 13529 | if (sym_sec != NULL && sym_sec->output_section != NULL) | |
| 13530 | val += sym_sec->output_offset + sym_sec->output_section->vma; | |
| 13531 | ||
| 2d7ad24e AM |
13532 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) |
| 13533 | { | |
| 13534 | htab->local_ifunc_resolver = 1; | |
| 13535 | plt = htab->elf.iplt; | |
| 13536 | relplt = htab->elf.irelplt; | |
| 13537 | } | |
| 13538 | else | |
| 13539 | { | |
| 13540 | plt = htab->pltlocal; | |
| 13541 | relplt = bfd_link_pic (info) ? htab->relpltlocal : NULL; | |
| 13542 | } | |
| 49c09209 | 13543 | |
| 2d7ad24e AM |
13544 | if (relplt == NULL) |
| 13545 | { | |
| 13546 | loc = plt->contents + ent->plt.offset; | |
| 13547 | bfd_put_64 (info->output_bfd, val, loc); | |
| 13548 | if (htab->opd_abi) | |
| 13549 | { | |
| 13550 | bfd_vma toc = elf_gp (ibfd); | |
| 13551 | bfd_put_64 (info->output_bfd, toc, loc + 8); | |
| 13552 | } | |
| 13553 | } | |
| 49c09209 | 13554 | else |
| 2d7ad24e AM |
13555 | { |
| 13556 | Elf_Internal_Rela rela; | |
| 13557 | rela.r_offset = (ent->plt.offset | |
| 13558 | + plt->output_offset | |
| 13559 | + plt->output_section->vma); | |
| 13560 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 13561 | { | |
| 13562 | if (htab->opd_abi) | |
| 13563 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 13564 | else | |
| 13565 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 13566 | } | |
| 13567 | else | |
| 13568 | { | |
| 13569 | if (htab->opd_abi) | |
| 13570 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_SLOT); | |
| 13571 | else | |
| 13572 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 13573 | } | |
| 13574 | rela.r_addend = val; | |
| 13575 | loc = relplt->contents + (relplt->reloc_count++ | |
| 13576 | * sizeof (Elf64_External_Rela)); | |
| 13577 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, loc); | |
| 13578 | } | |
| 49c09209 AM |
13579 | } |
| 13580 | ||
| 13581 | if (local_syms != NULL | |
| 13582 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 13583 | { | |
| 13584 | if (!info->keep_memory) | |
| 13585 | free (local_syms); | |
| 13586 | else | |
| 13587 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 13588 | } | |
| 13589 | } | |
| 13590 | return TRUE; | |
| 13591 | } | |
| 13592 | ||
| 721956f4 AM |
13593 | /* Build all the stubs associated with the current output file. |
| 13594 | The stubs are kept in a hash table attached to the main linker | |
| 13595 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13596 | ||
| b34976b6 | 13597 | bfd_boolean |
| e7d1c40c | 13598 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13599 | char **stats) |
| 5d1634d7 AM |
13600 | { |
| 13601 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13602 | struct map_stub *group; |
| 721956f4 | 13603 | asection *stub_sec; |
| 5d1634d7 | 13604 | bfd_byte *p; |
| e717da7e | 13605 | int stub_sec_count = 0; |
| 5d1634d7 | 13606 | |
| 4dfe6ac6 NC |
13607 | if (htab == NULL) |
| 13608 | return FALSE; | |
| 13609 | ||
| eea6121a | 13610 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13611 | for (group = htab->group; group != NULL; group = group->next) |
| 13612 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13613 | && stub_sec->size != 0) |
| e717da7e | 13614 | { |
| e7d1c40c | 13615 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13616 | if (stub_sec->contents == NULL) |
| 13617 | return FALSE; | |
| eea6121a | 13618 | stub_sec->size = 0; |
| e717da7e | 13619 | } |
| 5d1634d7 | 13620 | |
| 23eb7e01 | 13621 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13622 | { |
| 9f951329 | 13623 | unsigned int indx; |
| ad8e1ba5 | 13624 | bfd_vma plt0; |
| 9f951329 | 13625 | |
| 721956f4 | 13626 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13627 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13628 | { |
| 13629 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13630 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13631 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13632 | if (h == NULL) |
| 13633 | return FALSE; | |
| 13634 | if (h->root.type == bfd_link_hash_new) | |
| 13635 | { | |
| 13636 | h->root.type = bfd_link_hash_defined; | |
| 13637 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13638 | h->root.u.def.value = 8; |
| f5385ebf AM |
13639 | h->ref_regular = 1; |
| 13640 | h->def_regular = 1; | |
| 13641 | h->ref_regular_nonweak = 1; | |
| 13642 | h->forced_local = 1; | |
| 13643 | h->non_elf = 0; | |
| 2ec55de3 | 13644 | h->root.linker_def = 1; |
| 97b639ba AM |
13645 | } |
| 13646 | } | |
| 33e44f2e AM |
13647 | plt0 = (htab->elf.splt->output_section->vma |
| 13648 | + htab->elf.splt->output_offset | |
| 13649 | - 16); | |
| 176a0d42 AM |
13650 | if (info->emitrelocations) |
| 13651 | { | |
| 13652 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13653 | if (r == NULL) | |
| 13654 | return FALSE; | |
| 13655 | r->r_offset = (htab->glink->output_offset | |
| 13656 | + htab->glink->output_section->vma); | |
| 13657 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13658 | r->r_addend = plt0; | |
| 13659 | } | |
| 4ce794b7 | 13660 | p = htab->glink->contents; |
| 176a0d42 | 13661 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13662 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13663 | p += 8; | |
| b9e5796b AM |
13664 | if (htab->opd_abi) |
| 13665 | { | |
| 13666 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13667 | p += 4; | |
| 13668 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13669 | p += 4; | |
| 13670 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13671 | p += 4; | |
| 13672 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13673 | p += 4; | |
| 13674 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13675 | p += 4; | |
| 13676 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13677 | p += 4; | |
| 13678 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13679 | p += 4; | |
| 13680 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13681 | p += 4; | |
| 13682 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13683 | p += 4; | |
| 13684 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13685 | p += 4; | |
| 13686 | } | |
| 13687 | else | |
| 13688 | { | |
| 13689 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13690 | p += 4; | |
| 13691 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13692 | p += 4; | |
| 13693 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13694 | p += 4; | |
| f378ab09 AM |
13695 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13696 | p += 4; | |
| b9e5796b AM |
13697 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13698 | p += 4; | |
| 13699 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13700 | p += 4; | |
| 13701 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13702 | p += 4; | |
| 13703 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13704 | p += 4; | |
| 13705 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13706 | p += 4; | |
| 13707 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13708 | p += 4; | |
| 13709 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13710 | p += 4; | |
| 13711 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13712 | p += 4; | |
| 13713 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13714 | p += 4; | |
| 13715 | } | |
| 407aa07c AM |
13716 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| 13717 | p += 4; | |
| c75bc4f7 | 13718 | BFD_ASSERT (p == htab->glink->contents + GLINK_PLTRESOLVE_SIZE (htab)); |
| ad8e1ba5 | 13719 | |
| 9f951329 AM |
13720 | /* Build the .glink lazy link call stubs. */ |
| 13721 | indx = 0; | |
| 9e390558 | 13722 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 | 13723 | { |
| b9e5796b | 13724 | if (htab->opd_abi) |
| 9f951329 | 13725 | { |
| b9e5796b AM |
13726 | if (indx < 0x8000) |
| 13727 | { | |
| 13728 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13729 | p += 4; | |
| 13730 | } | |
| 13731 | else | |
| 13732 | { | |
| 13733 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13734 | p += 4; | |
| 13735 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13736 | p); | |
| 13737 | p += 4; | |
| 13738 | } | |
| 9f951329 | 13739 | } |
| 4ce794b7 | 13740 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13741 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13742 | indx++; |
| 9f951329 AM |
13743 | p += 4; |
| 13744 | } | |
| 5d1634d7 | 13745 | } |
| 5d1634d7 | 13746 | |
| 49c09209 AM |
13747 | /* Build .glink global entry stubs, and PLT relocs for globals. */ |
| 13748 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs_and_plt, info); | |
| 13749 | ||
| 13750 | if (!write_plt_relocs_for_local_syms (info)) | |
| 13751 | return FALSE; | |
| 9e390558 | 13752 | |
| 7341d5e2 | 13753 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13754 | { |
| 4ce794b7 | 13755 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13756 | htab->brlt->size); |
| 4ce794b7 | 13757 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13758 | return FALSE; |
| 721956f4 | 13759 | } |
| ee75fd95 | 13760 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13761 | { |
| 13762 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13763 | htab->relbrlt->size); |
| 63bc6f6c AM |
13764 | if (htab->relbrlt->contents == NULL) |
| 13765 | return FALSE; | |
| 13766 | } | |
| 5d1634d7 | 13767 | |
| 721956f4 AM |
13768 | /* Build the stubs as directed by the stub hash table. */ |
| 13769 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13770 | |
| a4b6fadd AM |
13771 | for (group = htab->group; group != NULL; group = group->next) |
| 13772 | if (group->needs_save_res) | |
| 7dda8d3c | 13773 | group->stub_sec->size += htab->sfpr->size; |
| a4b6fadd | 13774 | |
| aa8a7074 AM |
13775 | if (htab->relbrlt != NULL) |
| 13776 | htab->relbrlt->reloc_count = 0; | |
| 13777 | ||
| e7d1c40c | 13778 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13779 | for (group = htab->group; group != NULL; group = group->next) |
| 13780 | if ((stub_sec = group->stub_sec) != NULL) | |
| 691d2e9a AM |
13781 | { |
| 13782 | int align = abs (htab->params->plt_stub_align); | |
| 13783 | stub_sec->size = (stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 13784 | } | |
| 794e51c0 | 13785 | |
| 7dda8d3c AM |
13786 | for (group = htab->group; group != NULL; group = group->next) |
| 13787 | if (group->needs_save_res) | |
| 13788 | { | |
| 13789 | stub_sec = group->stub_sec; | |
| 13790 | memcpy (stub_sec->contents + stub_sec->size - htab->sfpr->size, | |
| 13791 | htab->sfpr->contents, htab->sfpr->size); | |
| 13792 | if (htab->params->emit_stub_syms) | |
| 13793 | { | |
| 13794 | unsigned int i; | |
| 13795 | ||
| 13796 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13797 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13798 | return FALSE; | |
| 13799 | } | |
| 13800 | } | |
| 13801 | ||
| d4aaa2a0 AM |
13802 | for (group = htab->group; group != NULL; group = group->next) |
| 13803 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13804 | { |
| 13805 | stub_sec_count += 1; | |
| c9301e31 AM |
13806 | if (stub_sec->rawsize != stub_sec->size |
| 13807 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13808 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13809 | break; |
| 13810 | } | |
| 5d1634d7 | 13811 | |
| 25516cc5 | 13812 | if (group != NULL) |
| 5d1634d7 | 13813 | { |
| b34976b6 | 13814 | htab->stub_error = TRUE; |
| cf97bcb0 | 13815 | _bfd_error_handler (_("stubs don't match calculated size")); |
| 5d1634d7 | 13816 | } |
| 721956f4 | 13817 | |
| d2a300cf AM |
13818 | if (htab->stub_error) |
| 13819 | return FALSE; | |
| 13820 | ||
| 13821 | if (stats != NULL) | |
| 13822 | { | |
| db84fff3 | 13823 | size_t len; |
| d2a300cf AM |
13824 | *stats = bfd_malloc (500); |
| 13825 | if (*stats == NULL) | |
| 13826 | return FALSE; | |
| 13827 | ||
| db84fff3 AM |
13828 | len = sprintf (*stats, |
| 13829 | ngettext ("linker stubs in %u group\n", | |
| 13830 | "linker stubs in %u groups\n", | |
| 13831 | stub_sec_count), | |
| 13832 | stub_sec_count); | |
| 13833 | sprintf (*stats + len, _(" branch %lu\n" | |
| 13834 | " toc adjust %lu\n" | |
| 13835 | " long branch %lu\n" | |
| 13836 | " long toc adj %lu\n" | |
| 13837 | " plt call %lu\n" | |
| 13838 | " plt call toc %lu\n" | |
| 13839 | " global entry %lu"), | |
| 4ce794b7 AM |
13840 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13841 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13842 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13843 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13844 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13845 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13846 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13847 | } |
| 13848 | return TRUE; | |
| 5bd4f169 AM |
13849 | } |
| 13850 | ||
| 60124e18 AM |
13851 | /* What to do when ld finds relocations against symbols defined in |
| 13852 | discarded sections. */ | |
| 13853 | ||
| 13854 | static unsigned int | |
| 13855 | ppc64_elf_action_discarded (asection *sec) | |
| 13856 | { | |
| 13857 | if (strcmp (".opd", sec->name) == 0) | |
| 13858 | return 0; | |
| 13859 | ||
| 13860 | if (strcmp (".toc", sec->name) == 0) | |
| 13861 | return 0; | |
| 13862 | ||
| bce50a28 JJ |
13863 | if (strcmp (".toc1", sec->name) == 0) |
| 13864 | return 0; | |
| 13865 | ||
| 60124e18 AM |
13866 | return _bfd_elf_default_action_discarded (sec); |
| 13867 | } | |
| 13868 | ||
| 5bd4f169 AM |
13869 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13870 | to handle the relocations for a section. | |
| 13871 | ||
| 13872 | The relocs are always passed as Rela structures; if the section | |
| 13873 | actually uses Rel structures, the r_addend field will always be | |
| 13874 | zero. | |
| 13875 | ||
| 13876 | This function is responsible for adjust the section contents as | |
| 13877 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13878 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13879 | necessary. |
| 13880 | ||
| 13881 | This function does not have to worry about setting the reloc | |
| 13882 | address or the reloc symbol index. | |
| 13883 | ||
| 13884 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13885 | ||
| 13886 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13887 | corresponding to the st_shndx field of each local symbol. | |
| 13888 | ||
| 13889 | The global hash table entry for the global symbols can be found | |
| 13890 | via elf_sym_hashes (input_bfd). | |
| 13891 | ||
| 1049f94e | 13892 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13893 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13894 | going to be the section symbol corresponding to the output | |
| 13895 | section, which means that the addend must be adjusted | |
| 13896 | accordingly. */ | |
| 13897 | ||
| b34976b6 | 13898 | static bfd_boolean |
| 4ce794b7 AM |
13899 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13900 | struct bfd_link_info *info, | |
| 13901 | bfd *input_bfd, | |
| 13902 | asection *input_section, | |
| 13903 | bfd_byte *contents, | |
| 13904 | Elf_Internal_Rela *relocs, | |
| 13905 | Elf_Internal_Sym *local_syms, | |
| 13906 | asection **local_sections) | |
| 5bd4f169 | 13907 | { |
| 65f38f15 | 13908 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13909 | Elf_Internal_Shdr *symtab_hdr; |
| 13910 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13911 | Elf_Internal_Rela *rel; |
| c316a17c | 13912 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13913 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13914 | Elf_Internal_Rela outrel; |
| 13915 | bfd_byte *loc; | |
| 411e1bfb | 13916 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13917 | bfd_vma TOCstart; |
| b34976b6 AM |
13918 | bfd_boolean ret = TRUE; |
| 13919 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13920 | /* Assume 'at' branch hints. */ |
| 13921 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13922 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13923 | |
| 65f38f15 | 13924 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13925 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13926 | ppc_howto_init (); |
| 13927 | ||
| 65f38f15 | 13928 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13929 | if (htab == NULL) |
| 13930 | return FALSE; | |
| ee75fd95 AM |
13931 | |
| 13932 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13933 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13934 | return TRUE; |
| 13935 | ||
| 0c8d6e5c | 13936 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13937 | |
| 411e1bfb | 13938 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13939 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13940 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13941 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13942 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13943 | |
| c316a17c | 13944 | rel = wrel = relocs; |
| 5bd4f169 | 13945 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13946 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13947 | { |
| 04c9666a | 13948 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13949 | bfd_vma addend; |
| 5bd4f169 AM |
13950 | bfd_reloc_status_type r; |
| 13951 | Elf_Internal_Sym *sym; | |
| 13952 | asection *sec; | |
| 039b3fef AM |
13953 | struct elf_link_hash_entry *h_elf; |
| 13954 | struct ppc_link_hash_entry *h; | |
| 13955 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13956 | const char *sym_name; |
| 0d4792f7 | 13957 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13958 | bfd_vma toc_addend; |
| f961d9dd AM |
13959 | unsigned char tls_mask, tls_gd, tls_type; |
| 13960 | unsigned char sym_type; | |
| 5bd4f169 | 13961 | bfd_vma relocation; |
| 23cedd1d | 13962 | bfd_boolean unresolved_reloc, save_unresolved_reloc; |
| b34976b6 | 13963 | bfd_boolean warned; |
| bc30df16 | 13964 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13965 | unsigned int insn; |
| e11840f9 | 13966 | unsigned int mask; |
| 721956f4 AM |
13967 | struct ppc_stub_hash_entry *stub_entry; |
| 13968 | bfd_vma max_br_offset; | |
| 13969 | bfd_vma from; | |
| c316a17c | 13970 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13971 | reloc_howto_type *howto; |
| 13972 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13973 | |
| c316a17c AM |
13974 | again: |
| 13975 | orig_rel = *rel; | |
| 13976 | ||
| 4ce794b7 | 13977 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13978 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13979 | |
| 13980 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13981 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13982 | proper TOC base to use. */ | |
| 13983 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13984 | && wrel != relocs |
| 13985 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13986 | && is_opd) |
| c316a17c | 13987 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13988 | |
| 4ce794b7 AM |
13989 | sym = NULL; |
| 13990 | sec = NULL; | |
| 039b3fef | 13991 | h_elf = NULL; |
| 4ce794b7 | 13992 | sym_name = NULL; |
| b34976b6 AM |
13993 | unresolved_reloc = FALSE; |
| 13994 | warned = FALSE; | |
| 65f38f15 | 13995 | |
| 0b13192e | 13996 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13997 | { |
| 13998 | /* It's a local symbol. */ | |
| 74f0fb50 | 13999 | struct _opd_sec_data *opd; |
| 4025353c | 14000 | |
| 5bd4f169 AM |
14001 | sym = local_syms + r_symndx; |
| 14002 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 14003 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 14004 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 14005 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
14006 | opd = get_opd_info (sec); |
| 14007 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 14008 | { |
| 51aecdc5 AM |
14009 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 14010 | + rel->r_addend)]; | |
| 4025353c AM |
14011 | if (adjust == -1) |
| 14012 | relocation = 0; | |
| 14013 | else | |
| 4cc603a5 AM |
14014 | { |
| 14015 | /* If this is a relocation against the opd section sym | |
| 14016 | and we have edited .opd, adjust the reloc addend so | |
| 14017 | that ld -r and ld --emit-relocs output is correct. | |
| 14018 | If it is a reloc against some other .opd symbol, | |
| 14019 | then the symbol value will be adjusted later. */ | |
| 14020 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 14021 | rel->r_addend += adjust; | |
| 14022 | else | |
| 14023 | relocation += adjust; | |
| 14024 | } | |
| 1e2f5b6e | 14025 | } |
| 5bd4f169 AM |
14026 | } |
| 14027 | else | |
| 14028 | { | |
| 62d887d4 L |
14029 | bfd_boolean ignored; |
| 14030 | ||
| b2a8e766 AM |
14031 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 14032 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 14033 | h_elf, sec, relocation, |
| 62d887d4 | 14034 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
14035 | sym_name = h_elf->root.root.string; |
| 14036 | sym_type = h_elf->type; | |
| b69fdb4e AM |
14037 | if (sec != NULL |
| 14038 | && sec->owner == output_bfd | |
| 14039 | && strcmp (sec->name, ".opd") == 0) | |
| 14040 | { | |
| 14041 | /* This is a symbol defined in a linker script. All | |
| 14042 | such are defined in output sections, even those | |
| 14043 | defined by simple assignment from a symbol defined in | |
| 14044 | an input section. Transfer the symbol to an | |
| 14045 | appropriate input .opd section, so that a branch to | |
| 14046 | this symbol will be mapped to the location specified | |
| 14047 | by the opd entry. */ | |
| 14048 | struct bfd_link_order *lo; | |
| 14049 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 14050 | if (lo->type == bfd_indirect_link_order) | |
| 14051 | { | |
| 14052 | asection *isec = lo->u.indirect.section; | |
| 14053 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 14054 | && h_elf->root.u.def.value < (isec->output_offset | |
| 14055 | + isec->size)) | |
| 14056 | { | |
| 14057 | h_elf->root.u.def.value -= isec->output_offset; | |
| 14058 | h_elf->root.u.def.section = isec; | |
| 14059 | sec = isec; | |
| 14060 | break; | |
| 14061 | } | |
| 14062 | } | |
| 14063 | } | |
| 5bd4f169 | 14064 | } |
| 039b3fef | 14065 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 14066 | |
| dbaa2011 | 14067 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
14068 | { |
| 14069 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 14070 | input_bfd, input_section, | |
| 14071 | contents + rel->r_offset); | |
| 14072 | wrel->r_offset = rel->r_offset; | |
| 14073 | wrel->r_info = 0; | |
| 14074 | wrel->r_addend = 0; | |
| 14075 | ||
| 14076 | /* For ld -r, remove relocations in debug sections against | |
| dcd2b8a0 | 14077 | symbols defined in discarded sections. Not done for |
| c316a17c AM |
14078 | non-debug to preserve relocs in .eh_frame which the |
| 14079 | eh_frame editing code expects to be present. */ | |
| 14080 | if (bfd_link_relocatable (info) | |
| 14081 | && (input_section->flags & SEC_DEBUGGING)) | |
| 14082 | wrel--; | |
| 14083 | ||
| 14084 | continue; | |
| 14085 | } | |
| ab96bf03 | 14086 | |
| 0e1862bb | 14087 | if (bfd_link_relocatable (info)) |
| c316a17c | 14088 | goto copy_reloc; |
| ab96bf03 | 14089 | |
| f40da81b AM |
14090 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 14091 | { | |
| 6f20ed8a | 14092 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
14093 | sec = bfd_abs_section_ptr; |
| 14094 | unresolved_reloc = FALSE; | |
| 14095 | } | |
| 14096 | ||
| 951fd09b AM |
14097 | /* TLS optimizations. Replace instruction sequences and relocs |
| 14098 | based on information we collected in tls_optimize. We edit | |
| 14099 | RELOCS so that --emit-relocs will output something sensible | |
| 14100 | for the final instruction stream. */ | |
| 14101 | tls_mask = 0; | |
| 14102 | tls_gd = 0; | |
| 0d4792f7 | 14103 | toc_symndx = 0; |
| 727fc41e AM |
14104 | if (h != NULL) |
| 14105 | tls_mask = h->tls_mask; | |
| 14106 | else if (local_got_ents != NULL) | |
| 411e1bfb | 14107 | { |
| e054468f AM |
14108 | struct plt_entry **local_plt = (struct plt_entry **) |
| 14109 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 14110 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 14111 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
14112 | tls_mask = lgot_masks[r_symndx]; |
| 14113 | } | |
| 37da22e5 | 14114 | if (((tls_mask & TLS_TLS) == 0 || tls_mask == (TLS_TLS | TLS_MARK)) |
| 727fc41e AM |
14115 | && (r_type == R_PPC64_TLS |
| 14116 | || r_type == R_PPC64_TLSGD | |
| 14117 | || r_type == R_PPC64_TLSLD)) | |
| 14118 | { | |
| 14119 | /* Check for toc tls entries. */ | |
| f961d9dd | 14120 | unsigned char *toc_tls; |
| 0d4792f7 | 14121 | |
| 727fc41e AM |
14122 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 14123 | &local_syms, rel, input_bfd)) | |
| 14124 | return FALSE; | |
| 0d4792f7 | 14125 | |
| 727fc41e AM |
14126 | if (toc_tls) |
| 14127 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
14128 | } |
| 14129 | ||
| 14130 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 14131 | relocs are used with non-tls syms. */ | |
| cf35638d | 14132 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
14133 | && r_type != R_PPC64_NONE |
| 14134 | && (h == NULL | |
| 039b3fef AM |
14135 | || h->elf.root.type == bfd_link_hash_defined |
| 14136 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
14137 | && (IS_PPC64_TLS_RELOC (r_type) |
| 14138 | != (sym_type == STT_TLS | |
| 14139 | || (sym_type == STT_SECTION | |
| 14140 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 14141 | { |
| 37da22e5 | 14142 | if ((tls_mask & TLS_TLS) != 0 |
| 727fc41e AM |
14143 | && (r_type == R_PPC64_TLS |
| 14144 | || r_type == R_PPC64_TLSGD | |
| 14145 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
14146 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 14147 | ; | |
| 14148 | else | |
| 25f53a85 | 14149 | info->callbacks->einfo |
| 1d483afe | 14150 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 14151 | /* xgettext:c-format */ |
| c1c8c1ef | 14152 | ? _("%H: %s used with TLS symbol `%pT'\n") |
| 695344c0 | 14153 | /* xgettext:c-format */ |
| c1c8c1ef | 14154 | : _("%H: %s used with non-TLS symbol `%pT'\n"), |
| 25f53a85 | 14155 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
14156 | ppc64_elf_howto_table[r_type]->name, |
| 14157 | sym_name); | |
| 411e1bfb AM |
14158 | } |
| 14159 | ||
| 14160 | /* Ensure reloc mapping code below stays sane. */ | |
| 14161 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 14162 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 14163 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 14164 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 14165 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 14166 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 14167 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 14168 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 14169 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 14170 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 14171 | abort (); | |
| 0d4792f7 | 14172 | |
| 411e1bfb AM |
14173 | switch (r_type) |
| 14174 | { | |
| 14175 | default: | |
| 411e1bfb AM |
14176 | break; |
| 14177 | ||
| ba761f19 | 14178 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 14179 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
14180 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 14181 | abort (); | |
| 14182 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 14183 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
14184 | r_type = R_PPC64_TOC16_LO; |
| 14185 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14186 | break; | |
| 14187 | ||
| 411e1bfb AM |
14188 | case R_PPC64_TOC16: |
| 14189 | case R_PPC64_TOC16_LO: | |
| 14190 | case R_PPC64_TOC16_DS: | |
| 14191 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
14192 | { |
| 14193 | /* Check for toc tls entries. */ | |
| f961d9dd | 14194 | unsigned char *toc_tls; |
| 951fd09b | 14195 | int retval; |
| 411e1bfb | 14196 | |
| 3a71aa26 AM |
14197 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 14198 | &local_syms, rel, input_bfd); | |
| 951fd09b | 14199 | if (retval == 0) |
| 411e1bfb AM |
14200 | return FALSE; |
| 14201 | ||
| 14202 | if (toc_tls) | |
| 14203 | { | |
| 951fd09b | 14204 | tls_mask = *toc_tls; |
| 411e1bfb AM |
14205 | if (r_type == R_PPC64_TOC16_DS |
| 14206 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 | 14207 | { |
| 37da22e5 | 14208 | if ((tls_mask & TLS_TLS) != 0 |
| 81407a69 AM |
14209 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) |
| 14210 | goto toctprel; | |
| 14211 | } | |
| 411e1bfb | 14212 | else |
| 951fd09b AM |
14213 | { |
| 14214 | /* If we found a GD reloc pair, then we might be | |
| 14215 | doing a GD->IE transition. */ | |
| 14216 | if (retval == 2) | |
| 14217 | { | |
| 14218 | tls_gd = TLS_TPRELGD; | |
| 37da22e5 AM |
14219 | if ((tls_mask & TLS_TLS) != 0 |
| 14220 | && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 14221 | goto tls_ldgd_opt; |
| 951fd09b AM |
14222 | } |
| 14223 | else if (retval == 3) | |
| 14224 | { | |
| 37da22e5 AM |
14225 | if ((tls_mask & TLS_TLS) != 0 |
| 14226 | && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 14227 | goto tls_ldgd_opt; |
| 951fd09b AM |
14228 | } |
| 14229 | } | |
| 411e1bfb AM |
14230 | } |
| 14231 | } | |
| 14232 | break; | |
| 14233 | ||
| 9d6ded02 AM |
14234 | case R_PPC64_GOT_TPREL16_HI: |
| 14235 | case R_PPC64_GOT_TPREL16_HA: | |
| 37da22e5 | 14236 | if ((tls_mask & TLS_TLS) != 0 |
| 9d6ded02 AM |
14237 | && (tls_mask & TLS_TPREL) == 0) |
| 14238 | { | |
| 14239 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 14240 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
14241 | r_type = R_PPC64_NONE; |
| 14242 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14243 | } | |
| 14244 | break; | |
| 14245 | ||
| 411e1bfb AM |
14246 | case R_PPC64_GOT_TPREL16_DS: |
| 14247 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 37da22e5 | 14248 | if ((tls_mask & TLS_TLS) != 0 |
| 951fd09b | 14249 | && (tls_mask & TLS_TPREL) == 0) |
| 411e1bfb | 14250 | { |
| 81407a69 | 14251 | toctprel: |
| 95f0d0d2 | 14252 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 14253 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
14254 | insn &= 31 << 21; |
| 14255 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 14256 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 14257 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 14258 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
14259 | if (toc_symndx != 0) |
| 14260 | { | |
| 14261 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 14262 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
14263 | /* We changed the symbol. Start over in order to |
| 14264 | get h, sym, sec etc. right. */ | |
| c316a17c | 14265 | goto again; |
| 0d4792f7 AM |
14266 | } |
| 14267 | else | |
| 14268 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
14269 | } |
| 14270 | break; | |
| 14271 | ||
| 14272 | case R_PPC64_TLS: | |
| 37da22e5 | 14273 | if ((tls_mask & TLS_TLS) != 0 |
| 951fd09b | 14274 | && (tls_mask & TLS_TPREL) == 0) |
| 411e1bfb | 14275 | { |
| 95f0d0d2 | 14276 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
14277 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 14278 | if (insn == 0) | |
| 411e1bfb | 14279 | abort (); |
| 95f0d0d2 | 14280 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 14281 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
14282 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 14283 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
14284 | r_type = R_PPC64_TPREL16_LO; |
| 14285 | if (toc_symndx != 0) | |
| 14286 | { | |
| 14287 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 14288 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
14289 | /* We changed the symbol. Start over in order to |
| 14290 | get h, sym, sec etc. right. */ | |
| c316a17c | 14291 | goto again; |
| 0d4792f7 AM |
14292 | } |
| 14293 | else | |
| 14294 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
14295 | } |
| 14296 | break; | |
| 14297 | ||
| 411e1bfb AM |
14298 | case R_PPC64_GOT_TLSGD16_HI: |
| 14299 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14300 | tls_gd = TLS_TPRELGD; |
| 37da22e5 | 14301 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
| 951fd09b AM |
14302 | goto tls_gdld_hi; |
| 14303 | break; | |
| 14304 | ||
| 411e1bfb AM |
14305 | case R_PPC64_GOT_TLSLD16_HI: |
| 14306 | case R_PPC64_GOT_TLSLD16_HA: | |
| 37da22e5 | 14307 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 14308 | { |
| 951fd09b AM |
14309 | tls_gdld_hi: |
| 14310 | if ((tls_mask & tls_gd) != 0) | |
| 14311 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 14312 | + R_PPC64_GOT_TPREL16_DS); | |
| 14313 | else | |
| 411e1bfb | 14314 | { |
| 4fe5ca5b | 14315 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 14316 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 14317 | r_type = R_PPC64_NONE; |
| 411e1bfb | 14318 | } |
| 951fd09b | 14319 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
14320 | } |
| 14321 | break; | |
| 14322 | ||
| 951fd09b AM |
14323 | case R_PPC64_GOT_TLSGD16: |
| 14324 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14325 | tls_gd = TLS_TPRELGD; | |
| 37da22e5 | 14326 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0) |
| 102890f0 | 14327 | goto tls_ldgd_opt; |
| 951fd09b | 14328 | break; |
| 411e1bfb | 14329 | |
| 951fd09b AM |
14330 | case R_PPC64_GOT_TLSLD16: |
| 14331 | case R_PPC64_GOT_TLSLD16_LO: | |
| 37da22e5 | 14332 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0) |
| 951fd09b | 14333 | { |
| b9f04fe0 | 14334 | unsigned int insn1, insn2; |
| 102890f0 AM |
14335 | bfd_vma offset; |
| 14336 | ||
| 14337 | tls_ldgd_opt: | |
| 727fc41e AM |
14338 | offset = (bfd_vma) -1; |
| 14339 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 14340 | __tls_get_addr calls, we must trust that the call | |
| 14341 | stays with its arg setup insns, ie. that the next | |
| 14342 | reloc is the __tls_get_addr call associated with | |
| 14343 | the current reloc. Edit both insns. */ | |
| 14344 | if (input_section->has_tls_get_addr_call | |
| 14345 | && rel + 1 < relend | |
| 14346 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 14347 | htab->tls_get_addr, | |
| 14348 | htab->tls_get_addr_fd)) | |
| 14349 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
14350 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 14351 | need to keep the destination reg. It may be | |
| 14352 | something other than the usual r3, and moved to r3 | |
| 14353 | before the call by intervening code. */ | |
| 95f0d0d2 | 14354 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 14355 | contents + rel->r_offset - d_offset); |
| 102890f0 | 14356 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 14357 | { |
| 102890f0 | 14358 | /* IE */ |
| b86ac8e3 | 14359 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
14360 | insn1 |= 58 << 26; /* ld */ |
| 14361 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 14362 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 14363 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
14364 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 14365 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 14366 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 14367 | else |
| 102890f0 AM |
14368 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 14369 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14370 | } | |
| 14371 | else | |
| 14372 | { | |
| 14373 | /* LE */ | |
| b86ac8e3 AM |
14374 | insn1 &= 0x1f << 21; |
| 14375 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
14376 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 14377 | if (tls_gd == 0) | |
| 951fd09b | 14378 | { |
| 102890f0 | 14379 | /* Was an LD reloc. */ |
| 1d483afe AM |
14380 | if (toc_symndx) |
| 14381 | sec = local_sections[toc_symndx]; | |
| 14382 | for (r_symndx = 0; | |
| 14383 | r_symndx < symtab_hdr->sh_info; | |
| 14384 | r_symndx++) | |
| 14385 | if (local_sections[r_symndx] == sec) | |
| 14386 | break; | |
| 14387 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 14388 | r_symndx = STN_UNDEF; |
| 102890f0 | 14389 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 14390 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
14391 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 14392 | + sec->output_offset | |
| 14393 | + sec->output_section->vma); | |
| 951fd09b | 14394 | } |
| 102890f0 | 14395 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
14396 | { |
| 14397 | r_symndx = toc_symndx; | |
| 14398 | rel->r_addend = toc_addend; | |
| 14399 | } | |
| 102890f0 AM |
14400 | r_type = R_PPC64_TPREL16_HA; |
| 14401 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
14402 | if (offset != (bfd_vma) -1) |
| 14403 | { | |
| 14404 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 14405 | R_PPC64_TPREL16_LO); | |
| 14406 | rel[1].r_offset = offset + d_offset; | |
| 14407 | rel[1].r_addend = rel->r_addend; | |
| 14408 | } | |
| 102890f0 | 14409 | } |
| 95f0d0d2 | 14410 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 14411 | contents + rel->r_offset - d_offset); |
| 727fc41e | 14412 | if (offset != (bfd_vma) -1) |
| b9f04fe0 | 14413 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
14414 | if ((tls_mask & tls_gd) == 0 |
| 14415 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 14416 | { | |
| 14417 | /* We changed the symbol. Start over in order | |
| 14418 | to get h, sym, sec etc. right. */ | |
| c316a17c | 14419 | goto again; |
| 727fc41e AM |
14420 | } |
| 14421 | } | |
| 14422 | break; | |
| 14423 | ||
| 14424 | case R_PPC64_TLSGD: | |
| 37da22e5 | 14425 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_GD) == 0 |
| 675e2809 | 14426 | && rel + 1 < relend) |
| 727fc41e | 14427 | { |
| b9f04fe0 | 14428 | unsigned int insn2; |
| 727fc41e AM |
14429 | bfd_vma offset = rel->r_offset; |
| 14430 | ||
| 23cedd1d AM |
14431 | if (is_plt_seq_reloc (ELF64_R_TYPE (rel[1].r_info))) |
| 14432 | { | |
| 14433 | bfd_put_32 (output_bfd, NOP, contents + offset); | |
| 14434 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); | |
| 14435 | break; | |
| 14436 | } | |
| 14437 | ||
| 14438 | if (ELF64_R_TYPE (rel[1].r_info) == R_PPC64_PLTCALL) | |
| 14439 | bfd_put_32 (output_bfd, NOP, contents + offset + 4); | |
| 14440 | ||
| 727fc41e AM |
14441 | if ((tls_mask & TLS_TPRELGD) != 0) |
| 14442 | { | |
| 14443 | /* IE */ | |
| 14444 | r_type = R_PPC64_NONE; | |
| 14445 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 14446 | } | |
| 14447 | else | |
| 14448 | { | |
| 14449 | /* LE */ | |
| 14450 | if (toc_symndx != 0) | |
| 14451 | { | |
| 14452 | r_symndx = toc_symndx; | |
| 14453 | rel->r_addend = toc_addend; | |
| 14454 | } | |
| 14455 | r_type = R_PPC64_TPREL16_LO; | |
| 14456 | rel->r_offset = offset + d_offset; | |
| 14457 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 14458 | } | |
| 14459 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14460 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 14461 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 14462 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 14463 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 14464 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 14465 | goto again; |
| 411e1bfb | 14466 | } |
| 411e1bfb AM |
14467 | break; |
| 14468 | ||
| 727fc41e | 14469 | case R_PPC64_TLSLD: |
| 37da22e5 | 14470 | if ((tls_mask & TLS_TLS) != 0 && (tls_mask & TLS_LD) == 0 |
| 675e2809 | 14471 | && rel + 1 < relend) |
| 727fc41e | 14472 | { |
| b9f04fe0 | 14473 | unsigned int insn2; |
| 727fc41e AM |
14474 | bfd_vma offset = rel->r_offset; |
| 14475 | ||
| 23cedd1d AM |
14476 | if (is_plt_seq_reloc (ELF64_R_TYPE (rel[1].r_info))) |
| 14477 | { | |
| 14478 | bfd_put_32 (output_bfd, NOP, contents + offset); | |
| 14479 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); | |
| 14480 | break; | |
| 14481 | } | |
| 14482 | ||
| 14483 | if (ELF64_R_TYPE (rel[1].r_info) == R_PPC64_PLTCALL) | |
| 14484 | bfd_put_32 (output_bfd, NOP, contents + offset + 4); | |
| 14485 | ||
| 727fc41e AM |
14486 | if (toc_symndx) |
| 14487 | sec = local_sections[toc_symndx]; | |
| 14488 | for (r_symndx = 0; | |
| 14489 | r_symndx < symtab_hdr->sh_info; | |
| 14490 | r_symndx++) | |
| 14491 | if (local_sections[r_symndx] == sec) | |
| 14492 | break; | |
| 14493 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 14494 | r_symndx = STN_UNDEF; |
| 727fc41e | 14495 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 14496 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
14497 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 14498 | + sec->output_offset | |
| 14499 | + sec->output_section->vma); | |
| 14500 | ||
| 14501 | r_type = R_PPC64_TPREL16_LO; | |
| 14502 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14503 | rel->r_offset = offset + d_offset; | |
| 14504 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 14505 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 14506 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 14507 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 14508 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 14509 | goto again; |
| 727fc41e AM |
14510 | } |
| 14511 | break; | |
| 14512 | ||
| 411e1bfb | 14513 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
14514 | if (rel + 1 < relend |
| 14515 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 14516 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 14517 | { |
| 951fd09b AM |
14518 | if ((tls_mask & TLS_GD) == 0) |
| 14519 | { | |
| 14520 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 14521 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 14522 | r_type = R_PPC64_TPREL64; | |
| 14523 | else | |
| 14524 | { | |
| 4ce794b7 | 14525 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
14526 | r_type = R_PPC64_NONE; |
| 14527 | } | |
| 14528 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14529 | } | |
| 14530 | } | |
| 14531 | else | |
| 14532 | { | |
| 14533 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 14534 | { |
| 4ce794b7 | 14535 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 14536 | r_type = R_PPC64_NONE; |
| 951fd09b | 14537 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 14538 | } |
| 411e1bfb AM |
14539 | } |
| 14540 | break; | |
| 14541 | ||
| 14542 | case R_PPC64_TPREL64: | |
| 951fd09b | 14543 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
14544 | { |
| 14545 | r_type = R_PPC64_NONE; | |
| 14546 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14547 | } | |
| 14548 | break; | |
| 52a82034 | 14549 | |
| 006589cf AM |
14550 | case R_PPC64_ENTRY: |
| 14551 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 14552 | if (!bfd_link_pic (info) | |
| 14553 | && !info->traditional_format | |
| 14554 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14555 | { | |
| 14556 | unsigned int insn1, insn2; | |
| 14557 | ||
| 14558 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14559 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14560 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14561 | && insn2 == ADD_R2_R2_R12) | |
| 14562 | { | |
| 95f0d0d2 | 14563 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14564 | LIS_R2 + PPC_HA (relocation), |
| 14565 | contents + rel->r_offset); | |
| 95f0d0d2 | 14566 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14567 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14568 | contents + rel->r_offset + 4); | |
| 14569 | } | |
| 14570 | } | |
| 14571 | else | |
| 14572 | { | |
| 14573 | relocation -= (rel->r_offset | |
| 14574 | + input_section->output_offset | |
| 14575 | + input_section->output_section->vma); | |
| 14576 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14577 | { | |
| 14578 | unsigned int insn1, insn2; | |
| 14579 | ||
| 14580 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14581 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14582 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14583 | && insn2 == ADD_R2_R2_R12) | |
| 14584 | { | |
| 95f0d0d2 | 14585 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14586 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14587 | contents + rel->r_offset); | |
| 95f0d0d2 | 14588 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14589 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14590 | contents + rel->r_offset + 4); | |
| 14591 | } | |
| 14592 | } | |
| 14593 | } | |
| 14594 | break; | |
| 14595 | ||
| 52a82034 AM |
14596 | case R_PPC64_REL16_HA: |
| 14597 | /* If we are generating a non-PIC executable, edit | |
| 14598 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14599 | . addi 2,2,.TOC.-0b@l | |
| 14600 | used by ELFv2 global entry points to set up r2, to | |
| 14601 | . lis 2,.TOC.@ha | |
| 14602 | . addi 2,2,.TOC.@l | |
| 14603 | if .TOC. is in range. */ | |
| 0e1862bb | 14604 | if (!bfd_link_pic (info) |
| 810d4e75 | 14605 | && !info->traditional_format |
| 006589cf | 14606 | && !htab->opd_abi |
| 4f038ee5 | 14607 | && rel->r_addend == d_offset |
| 52a82034 AM |
14608 | && h != NULL && &h->elf == htab->elf.hgot |
| 14609 | && rel + 1 < relend | |
| 14610 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14611 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14612 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14613 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14614 | { | |
| 14615 | unsigned int insn1, insn2; | |
| 14616 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14617 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14618 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14619 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14620 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14621 | { |
| 14622 | r_type = R_PPC64_ADDR16_HA; | |
| 14623 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14624 | rel->r_addend -= d_offset; | |
| 14625 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14626 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14627 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14628 | } |
| 14629 | } | |
| 14630 | break; | |
| 411e1bfb AM |
14631 | } |
| 14632 | ||
| 14633 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14634 | insn = 0; |
| b25116a9 AM |
14635 | max_br_offset = 1 << 25; |
| 14636 | addend = rel->r_addend; | |
| bc30df16 | 14637 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14638 | switch (r_type) |
| 5bd4f169 AM |
14639 | { |
| 14640 | default: | |
| 65f38f15 | 14641 | break; |
| 5bd4f169 | 14642 | |
| 3b421ab3 AM |
14643 | case R_PPC64_TOCSAVE: |
| 14644 | if (relocation + addend == (rel->r_offset | |
| 14645 | + input_section->output_offset | |
| 14646 | + input_section->output_section->vma) | |
| 14647 | && tocsave_find (htab, NO_INSERT, | |
| 14648 | &local_syms, rel, input_bfd)) | |
| 14649 | { | |
| 14650 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14651 | if (insn == NOP | |
| 14652 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14653 | bfd_put_32 (input_bfd, |
| 14654 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14655 | contents + rel->r_offset); |
| 14656 | } | |
| 14657 | break; | |
| 14658 | ||
| 65f38f15 AM |
14659 | /* Branch taken prediction relocations. */ |
| 14660 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14661 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14662 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14663 | /* Fall through. */ |
| 65f38f15 | 14664 | |
| 86c76c7b | 14665 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14666 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14667 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14668 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14669 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14670 | /* Fall through. */ |
| 86c76c7b | 14671 | |
| b25116a9 AM |
14672 | case R_PPC64_REL14: |
| 14673 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14674 | /* Fall through. */ |
| 5bd4f169 | 14675 | |
| 65f38f15 | 14676 | case R_PPC64_REL24: |
| 23cedd1d | 14677 | case R_PPC64_PLTCALL: |
| ad8e1ba5 AM |
14678 | /* Calls to functions with a different TOC, such as calls to |
| 14679 | shared objects, need to alter the TOC pointer. This is | |
| 14680 | done using a linkage stub. A REL24 branching to these | |
| 14681 | linkage stubs needs to be followed by a nop, as the nop | |
| 14682 | will be replaced with an instruction to restore the TOC | |
| 14683 | base pointer. */ | |
| 8387904d | 14684 | fdh = h; |
| b31867b6 AM |
14685 | if (h != NULL |
| 14686 | && h->oh != NULL | |
| 14687 | && h->oh->is_func_descriptor) | |
| 14688 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14689 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14690 | htab); | |
| 23cedd1d AM |
14691 | if (r_type == R_PPC64_PLTCALL |
| 14692 | && stub_entry != NULL | |
| 14693 | && (stub_entry->stub_type == ppc_stub_plt_call | |
| 14694 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 14695 | stub_entry = NULL; | |
| 14696 | ||
| 6abec6bc | 14697 | if (stub_entry != NULL |
| ad8e1ba5 | 14698 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14699 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14700 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14701 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14702 | { |
| b25116a9 | 14703 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14704 | |
| 6e1816be AM |
14705 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14706 | && !htab->opd_abi | |
| 14707 | && htab->params->plt_localentry0 != 0 | |
| 14708 | && is_elfv2_localentry0 (&h->elf)) | |
| 14709 | { | |
| 14710 | /* The function doesn't use or change r2. */ | |
| 14711 | can_plt_call = TRUE; | |
| 14712 | } | |
| 14713 | ||
| f378ab09 | 14714 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14715 | branch and link followed by a nop. The nop is |
| 14716 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14717 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14718 | { |
| ba8ca3e7 AM |
14719 | unsigned long br; |
| 14720 | ||
| 14721 | br = bfd_get_32 (input_bfd, | |
| 14722 | contents + rel->r_offset); | |
| 14723 | if ((br & 1) != 0) | |
| 41bd81ab | 14724 | { |
| ba8ca3e7 AM |
14725 | unsigned long nop; |
| 14726 | ||
| 14727 | nop = bfd_get_32 (input_bfd, | |
| 14728 | contents + rel->r_offset + 4); | |
| 23cedd1d AM |
14729 | if (nop == LD_R2_0R1 + STK_TOC (htab)) |
| 14730 | can_plt_call = TRUE; | |
| 14731 | else if (nop == NOP | |
| 14732 | || nop == CROR_151515 | |
| 14733 | || nop == CROR_313131) | |
| a7f2871e | 14734 | { |
| ba8ca3e7 AM |
14735 | if (h != NULL |
| 14736 | && (h == htab->tls_get_addr_fd | |
| 14737 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14738 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14739 | { |
| 14740 | /* Special stub used, leave nop alone. */ | |
| 14741 | } | |
| 14742 | else | |
| a078d95a AM |
14743 | bfd_put_32 (input_bfd, |
| 14744 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14745 | contents + rel->r_offset + 4); |
| 14746 | can_plt_call = TRUE; | |
| a7f2871e | 14747 | } |
| 41bd81ab | 14748 | } |
| 5bd4f169 | 14749 | } |
| 721956f4 | 14750 | |
| ba8ca3e7 | 14751 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14752 | { |
| ba8ca3e7 AM |
14753 | const char *name = h->elf.root.root.string; |
| 14754 | ||
| 14755 | if (*name == '.') | |
| 14756 | ++name; | |
| 14757 | ||
| 14758 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14759 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14760 | { |
| ba8ca3e7 AM |
14761 | /* Allow crt1 branch to go via a toc adjusting |
| 14762 | stub. Other calls that never return could do | |
| 14763 | the same, if we could detect such. */ | |
| b25116a9 | 14764 | can_plt_call = TRUE; |
| 6ab189d5 | 14765 | } |
| ba8ca3e7 AM |
14766 | } |
| 14767 | ||
| 14768 | if (!can_plt_call) | |
| 14769 | { | |
| 14770 | /* g++ as of 20130507 emits self-calls without a | |
| 14771 | following nop. This is arguably wrong since we | |
| 14772 | have conflicting information. On the one hand a | |
| 14773 | global symbol and on the other a local call | |
| 14774 | sequence, but don't error for this special case. | |
| 14775 | It isn't possible to cheaply verify we have | |
| 14776 | exactly such a call. Allow all calls to the same | |
| 14777 | section. */ | |
| 14778 | asection *code_sec = sec; | |
| 14779 | ||
| 14780 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14781 | { |
| ba8ca3e7 AM |
14782 | bfd_vma off = (relocation + addend |
| 14783 | - sec->output_section->vma | |
| 14784 | - sec->output_offset); | |
| bc30df16 | 14785 | |
| ba8ca3e7 | 14786 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14787 | } |
| ba8ca3e7 AM |
14788 | if (code_sec == input_section) |
| 14789 | can_plt_call = TRUE; | |
| 14790 | } | |
| 14791 | ||
| 14792 | if (!can_plt_call) | |
| 14793 | { | |
| 4805fc55 AM |
14794 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14795 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14796 | info->callbacks->einfo | |
| 695344c0 | 14797 | /* xgettext:c-format */ |
| c1c8c1ef | 14798 | (_("%H: call to `%pT' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14799 | "recompile with -fPIC\n"), |
| 14800 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14801 | else | |
| 14802 | info->callbacks->einfo | |
| 695344c0 | 14803 | /* xgettext:c-format */ |
| c1c8c1ef | 14804 | (_("%H: call to `%pT' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14805 | "(-mcmodel=small toc adjust stub)\n"), |
| 14806 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14807 | |
| 14808 | bfd_set_error (bfd_error_bad_value); | |
| 14809 | ret = FALSE; | |
| 721956f4 AM |
14810 | } |
| 14811 | ||
| b25116a9 | 14812 | if (can_plt_call |
| 794e51c0 AM |
14813 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14814 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14815 | unresolved_reloc = FALSE; |
| 14816 | } | |
| 14817 | ||
| 6abec6bc AM |
14818 | if ((stub_entry == NULL |
| 14819 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14820 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14821 | && get_opd_info (sec) != NULL) |
| 14822 | { | |
| 14823 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14824 | bfd_vma off = (relocation + addend |
| 14825 | - sec->output_section->vma | |
| 14826 | - sec->output_offset); | |
| aef36ac1 | 14827 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14828 | if (dest != (bfd_vma) -1) |
| 14829 | { | |
| 14830 | relocation = dest; | |
| 14831 | addend = 0; | |
| bc30df16 | 14832 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14833 | } |
| 14834 | } | |
| 14835 | ||
| b25116a9 AM |
14836 | /* If the branch is out of reach we ought to have a long |
| 14837 | branch stub. */ | |
| 14838 | from = (rel->r_offset | |
| 14839 | + input_section->output_offset | |
| 14840 | + input_section->output_section->vma); | |
| 14841 | ||
| 6911b7dc AM |
14842 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14843 | ? fdh->elf.other | |
| 14844 | : sym->st_other); | |
| 14845 | ||
| 6abec6bc AM |
14846 | if (stub_entry != NULL |
| 14847 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14848 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14849 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14850 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14851 | || (relocation + addend - from + max_br_offset | |
| 14852 | < 2 * max_br_offset))) | |
| 14853 | /* Don't use the stub if this branch is in range. */ | |
| 14854 | stub_entry = NULL; | |
| b25116a9 AM |
14855 | |
| 14856 | if (stub_entry != NULL) | |
| 14857 | { | |
| 14858 | /* Munge up the value and addend so that we call the stub | |
| 14859 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14860 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14861 | ||
| 14862 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14863 | relocation += (stub_sec->output_offset | |
| 14864 | + stub_sec->output_section->vma | |
| 14865 | + stub_sec->size - htab->sfpr->size | |
| 14866 | - htab->sfpr->output_offset | |
| 14867 | - htab->sfpr->output_section->vma); | |
| 14868 | else | |
| 14869 | relocation = (stub_entry->stub_offset | |
| 14870 | + stub_sec->output_offset | |
| 14871 | + stub_sec->output_section->vma); | |
| b25116a9 | 14872 | addend = 0; |
| bc30df16 | 14873 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14874 | |
| 954b63d4 | 14875 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14876 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14877 | && (ALWAYS_EMIT_R2SAVE | |
| 14878 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14879 | && rel + 1 < relend |
| 14880 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14881 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14882 | relocation += 4; | |
| b25116a9 AM |
14883 | } |
| 14884 | ||
| 14885 | if (insn != 0) | |
| 14886 | { | |
| 794e51c0 | 14887 | if (is_isa_v2) |
| 721956f4 | 14888 | { |
| b25116a9 AM |
14889 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14890 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14891 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14892 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14893 | insn |= 0x02 << 21; | |
| 14894 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14895 | insn |= 0x08 << 21; | |
| 14896 | else | |
| 14897 | break; | |
| 14898 | } | |
| 14899 | else | |
| 14900 | { | |
| 14901 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14902 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14903 | insn ^= 0x01 << 21; |
| 721956f4 | 14904 | } |
| b25116a9 | 14905 | |
| 95f0d0d2 | 14906 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14907 | } |
| e86ce104 | 14908 | |
| 06da1e8e AM |
14909 | /* NOP out calls to undefined weak functions. |
| 14910 | We can thus call a weak function without first | |
| 14911 | checking whether the function is defined. */ | |
| b25116a9 | 14912 | else if (h != NULL |
| 039b3fef | 14913 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14914 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14915 | && r_type == R_PPC64_REL24 |
| 14916 | && relocation == 0 | |
| 4cc603a5 | 14917 | && addend == 0) |
| e86ce104 | 14918 | { |
| 95f0d0d2 | 14919 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14920 | goto copy_reloc; |
| e86ce104 | 14921 | } |
| 65f38f15 AM |
14922 | break; |
| 14923 | } | |
| 5bd4f169 | 14924 | |
| 65f38f15 | 14925 | /* Set `addend'. */ |
| 411e1bfb | 14926 | tls_type = 0; |
| 23cedd1d | 14927 | save_unresolved_reloc = unresolved_reloc; |
| 65f38f15 AM |
14928 | switch (r_type) |
| 14929 | { | |
| 14930 | default: | |
| cf97bcb0 AM |
14931 | /* xgettext:c-format */ |
| 14932 | _bfd_error_handler (_("%pB: %s unsupported"), | |
| 14933 | input_bfd, ppc64_elf_howto_table[r_type]->name); | |
| 5bd4f169 | 14934 | |
| 65f38f15 | 14935 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14936 | ret = FALSE; |
| c316a17c | 14937 | goto copy_reloc; |
| 5bd4f169 | 14938 | |
| 65f38f15 | 14939 | case R_PPC64_NONE: |
| 411e1bfb | 14940 | case R_PPC64_TLS: |
| 727fc41e AM |
14941 | case R_PPC64_TLSGD: |
| 14942 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14943 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14944 | case R_PPC64_GNU_VTINHERIT: |
| 14945 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14946 | case R_PPC64_ENTRY: |
| c316a17c | 14947 | goto copy_reloc; |
| 5bd4f169 AM |
14948 | |
| 14949 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14950 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14951 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14952 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14953 | case R_PPC64_GOT_TLSGD16: |
| 14954 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14955 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14956 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14957 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14958 | goto dogot; |
| 14959 | ||
| 14960 | case R_PPC64_GOT_TLSLD16: | |
| 14961 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14962 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14963 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14964 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14965 | goto dogot; |
| 14966 | ||
| 14967 | case R_PPC64_GOT_TPREL16_DS: | |
| 14968 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14969 | case R_PPC64_GOT_TPREL16_HI: | |
| 14970 | case R_PPC64_GOT_TPREL16_HA: | |
| 14971 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14972 | goto dogot; | |
| 14973 | ||
| 14974 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14975 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14976 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14977 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14978 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14979 | goto dogot; | |
| 14980 | ||
| 65f38f15 AM |
14981 | case R_PPC64_GOT16: |
| 14982 | case R_PPC64_GOT16_LO: | |
| 14983 | case R_PPC64_GOT16_HI: | |
| 14984 | case R_PPC64_GOT16_HA: | |
| 14985 | case R_PPC64_GOT16_DS: | |
| 14986 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14987 | dogot: |
| 5bd4f169 AM |
14988 | { |
| 14989 | /* Relocation is to the entry for this symbol in the global | |
| 14990 | offset table. */ | |
| e717da7e | 14991 | asection *got; |
| d881513a | 14992 | bfd_vma *offp; |
| 5bd4f169 | 14993 | bfd_vma off; |
| d881513a | 14994 | unsigned long indx = 0; |
| 927be08e | 14995 | struct got_entry *ent; |
| 65f38f15 | 14996 | |
| d881513a AM |
14997 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14998 | && (h == NULL | |
| f5385ebf | 14999 | || !h->elf.def_dynamic)) |
| 927be08e | 15000 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 15001 | else |
| 5bd4f169 | 15002 | { |
| d881513a AM |
15003 | if (h != NULL) |
| 15004 | { | |
| f0158f44 AM |
15005 | if (!htab->elf.dynamic_sections_created |
| 15006 | || h->elf.dynindx == -1 | |
| 15007 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 15008 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
15009 | /* This is actually a static link, or it is a |
| 15010 | -Bsymbolic link and the symbol is defined | |
| 15011 | locally, or the symbol was forced to be local | |
| 15012 | because of a version file. */ | |
| 15013 | ; | |
| 15014 | else | |
| 15015 | { | |
| 039b3fef | 15016 | indx = h->elf.dynindx; |
| d881513a AM |
15017 | unresolved_reloc = FALSE; |
| 15018 | } | |
| 039b3fef | 15019 | ent = h->elf.got.glist; |
| d881513a | 15020 | } |
| 411e1bfb | 15021 | else |
| 5bd4f169 | 15022 | { |
| d881513a AM |
15023 | if (local_got_ents == NULL) |
| 15024 | abort (); | |
| 15025 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 15026 | } |
| d881513a AM |
15027 | |
| 15028 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 15029 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 15030 | && ent->owner == input_bfd |
| d881513a AM |
15031 | && ent->tls_type == tls_type) |
| 15032 | break; | |
| 5bd4f169 | 15033 | } |
| 411e1bfb | 15034 | |
| 927be08e AM |
15035 | if (ent == NULL) |
| 15036 | abort (); | |
| 15037 | if (ent->is_indirect) | |
| 15038 | ent = ent->got.ent; | |
| 15039 | offp = &ent->got.offset; | |
| 15040 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
15041 | if (got == NULL) |
| 15042 | abort (); | |
| 15043 | ||
| 411e1bfb AM |
15044 | /* The offset must always be a multiple of 8. We use the |
| 15045 | least significant bit to record whether we have already | |
| 15046 | processed this entry. */ | |
| d881513a | 15047 | off = *offp; |
| 411e1bfb AM |
15048 | if ((off & 1) != 0) |
| 15049 | off &= ~1; | |
| 5bd4f169 AM |
15050 | else |
| 15051 | { | |
| 411e1bfb AM |
15052 | /* Generate relocs for the dynamic linker, except in |
| 15053 | the case of TLSLD where we'll use one entry per | |
| 15054 | module. */ | |
| 25f23106 AM |
15055 | asection *relgot; |
| 15056 | bfd_boolean ifunc; | |
| e717da7e | 15057 | |
| d881513a | 15058 | *offp = off | 1; |
| 25f23106 AM |
15059 | relgot = NULL; |
| 15060 | ifunc = (h != NULL | |
| 15061 | ? h->elf.type == STT_GNU_IFUNC | |
| 15062 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 15063 | if (ifunc) |
| 82e66161 AM |
15064 | { |
| 15065 | relgot = htab->elf.irelplt; | |
| 15066 | if (indx == 0) | |
| 15067 | htab->local_ifunc_resolver = 1; | |
| 15068 | else if (is_static_defined (&h->elf)) | |
| 15069 | htab->maybe_local_ifunc_resolver = 1; | |
| 15070 | } | |
| f0158f44 AM |
15071 | else if (indx != 0 |
| 15072 | || (bfd_link_pic (info) | |
| 15073 | && (h == NULL | |
| 21d68fcd | 15074 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 | 15075 | || (tls_type == (TLS_TLS | TLS_LD) |
| f15d0b54 AM |
15076 | && !h->elf.def_dynamic)) |
| 15077 | && !(tls_type == (TLS_TLS | TLS_TPREL) | |
| 15078 | && bfd_link_executable (info) | |
| 15079 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))) | |
| 19e08130 | 15080 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 15081 | if (relgot != NULL) |
| 5bd4f169 | 15082 | { |
| e717da7e AM |
15083 | outrel.r_offset = (got->output_section->vma |
| 15084 | + got->output_offset | |
| 411e1bfb | 15085 | + off); |
| 4cc603a5 | 15086 | outrel.r_addend = addend; |
| d881513a | 15087 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 15088 | { |
| 411e1bfb | 15089 | outrel.r_addend = 0; |
| e515b051 | 15090 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
15091 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 15092 | { | |
| e717da7e AM |
15093 | loc = relgot->contents; |
| 15094 | loc += (relgot->reloc_count++ | |
| d881513a AM |
15095 | * sizeof (Elf64_External_Rela)); |
| 15096 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 15097 | &outrel, loc); | |
| e515b051 | 15098 | outrel.r_offset += 8; |
| 4cc603a5 | 15099 | outrel.r_addend = addend; |
| d881513a AM |
15100 | outrel.r_info |
| 15101 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 15102 | } |
| 411e1bfb | 15103 | } |
| 951fd09b | 15104 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 15105 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 15106 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 15107 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
15108 | else if (indx != 0) |
| 15109 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 15110 | else | |
| 81407a69 | 15111 | { |
| 25f23106 AM |
15112 | if (ifunc) |
| 15113 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 15114 | else | |
| 15115 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
15116 | |
| 15117 | /* Write the .got section contents for the sake | |
| 15118 | of prelink. */ | |
| e717da7e | 15119 | loc = got->contents + off; |
| 23fbd6fa JJ |
15120 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 15121 | loc); | |
| 81407a69 | 15122 | } |
| 81407a69 AM |
15123 | |
| 15124 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
15125 | { |
| 15126 | outrel.r_addend += relocation; | |
| 15127 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
15128 | { |
| 15129 | if (htab->elf.tls_sec == NULL) | |
| 15130 | outrel.r_addend = 0; | |
| 15131 | else | |
| 15132 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 15133 | } | |
| e515b051 | 15134 | } |
| e717da7e AM |
15135 | loc = relgot->contents; |
| 15136 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
15137 | * sizeof (Elf64_External_Rela)); |
| 15138 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 15139 | } | |
| 15140 | ||
| ad8e1ba5 | 15141 | /* Init the .got section contents here if we're not |
| 81407a69 | 15142 | emitting a reloc. */ |
| d881513a | 15143 | else |
| 411e1bfb | 15144 | { |
| 4cc603a5 | 15145 | relocation += addend; |
| f0158f44 | 15146 | if (tls_type != 0) |
| 411e1bfb | 15147 | { |
| 989f9879 AM |
15148 | if (htab->elf.tls_sec == NULL) |
| 15149 | relocation = 0; | |
| 15150 | else | |
| 15151 | { | |
| f0158f44 AM |
15152 | if (tls_type & TLS_LD) |
| 15153 | relocation = 0; | |
| 15154 | else | |
| 15155 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 15156 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
15157 | relocation += DTP_OFFSET - TP_OFFSET; |
| 15158 | } | |
| 5bd4f169 | 15159 | |
| f0158f44 | 15160 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
15161 | { |
| 15162 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 15163 | got->contents + off + 8); |
| 676ee2b5 | 15164 | relocation = 1; |
| 7b609f53 | 15165 | } |
| 411e1bfb AM |
15166 | } |
| 15167 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 15168 | got->contents + off); |
| 5bd4f169 AM |
15169 | } |
| 15170 | } | |
| 15171 | ||
| 65f38f15 AM |
15172 | if (off >= (bfd_vma) -2) |
| 15173 | abort (); | |
| 15174 | ||
| bf102f86 | 15175 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 15176 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 15177 | } |
| 65f38f15 AM |
15178 | break; |
| 15179 | ||
| 15180 | case R_PPC64_PLT16_HA: | |
| 15181 | case R_PPC64_PLT16_HI: | |
| 15182 | case R_PPC64_PLT16_LO: | |
| 08be3224 | 15183 | case R_PPC64_PLT16_LO_DS: |
| 65f38f15 AM |
15184 | case R_PPC64_PLT32: |
| 15185 | case R_PPC64_PLT64: | |
| 23cedd1d AM |
15186 | case R_PPC64_PLTSEQ: |
| 15187 | case R_PPC64_PLTCALL: | |
| 65f38f15 AM |
15188 | /* Relocation is to the entry for this symbol in the |
| 15189 | procedure linkage table. */ | |
| 23cedd1d | 15190 | unresolved_reloc = TRUE; |
| cbf95972 AM |
15191 | { |
| 15192 | struct plt_entry **plt_list = NULL; | |
| 15193 | if (h != NULL) | |
| 15194 | plt_list = &h->elf.plt.plist; | |
| 15195 | else if (local_got_ents != NULL) | |
| 15196 | { | |
| 15197 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 15198 | (local_got_ents + symtab_hdr->sh_info); | |
| 2d7ad24e | 15199 | plt_list = local_plt + r_symndx; |
| cbf95972 AM |
15200 | } |
| 15201 | if (plt_list) | |
| 15202 | { | |
| 15203 | struct plt_entry *ent; | |
| 65f38f15 | 15204 | |
| cbf95972 AM |
15205 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 15206 | if (ent->plt.offset != (bfd_vma) -1 | |
| 15207 | && ent->addend == orig_rel.r_addend) | |
| 15208 | { | |
| 15209 | asection *plt; | |
| 08be3224 | 15210 | bfd_vma got; |
| cbf95972 AM |
15211 | |
| 15212 | plt = htab->elf.splt; | |
| 15213 | if (!htab->elf.dynamic_sections_created | |
| 15214 | || h == NULL | |
| 15215 | || h->elf.dynindx == -1) | |
| 2d7ad24e AM |
15216 | { |
| 15217 | if (h != NULL | |
| 15218 | ? h->elf.type == STT_GNU_IFUNC | |
| 15219 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 15220 | plt = htab->elf.iplt; | |
| 15221 | else | |
| 15222 | plt = htab->pltlocal; | |
| 15223 | } | |
| 15224 | relocation = (plt->output_section->vma | |
| 15225 | + plt->output_offset | |
| 15226 | + ent->plt.offset); | |
| 08be3224 AM |
15227 | if (r_type == R_PPC64_PLT16_HA |
| 15228 | || r_type ==R_PPC64_PLT16_HI | |
| 15229 | || r_type ==R_PPC64_PLT16_LO | |
| 15230 | || r_type ==R_PPC64_PLT16_LO_DS) | |
| 15231 | { | |
| 15232 | got = (elf_gp (output_bfd) | |
| 15233 | + htab->sec_info[input_section->id].toc_off); | |
| 15234 | relocation -= got; | |
| 15235 | } | |
| cbf95972 AM |
15236 | addend = 0; |
| 15237 | unresolved_reloc = FALSE; | |
| 15238 | break; | |
| 15239 | } | |
| 15240 | } | |
| 15241 | } | |
| 65f38f15 | 15242 | break; |
| 5bd4f169 | 15243 | |
| 0b13192e AM |
15244 | case R_PPC64_TOC: |
| 15245 | /* Relocation value is TOC base. */ | |
| 15246 | relocation = TOCstart; | |
| cf35638d | 15247 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 15248 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
15249 | else if (unresolved_reloc) |
| 15250 | ; | |
| 6f20ed8a AM |
15251 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 15252 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
15253 | else |
| 15254 | unresolved_reloc = TRUE; | |
| ab96bf03 | 15255 | goto dodyn; |
| 0b13192e | 15256 | |
| 5bd4f169 AM |
15257 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 15258 | which is the address of the start of the TOC plus 0x8000. | |
| 15259 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 15260 | in this order. */ | |
| 65f38f15 AM |
15261 | case R_PPC64_TOC16: |
| 15262 | case R_PPC64_TOC16_LO: | |
| 15263 | case R_PPC64_TOC16_HI: | |
| 15264 | case R_PPC64_TOC16_DS: | |
| 15265 | case R_PPC64_TOC16_LO_DS: | |
| 15266 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 15267 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
15268 | break; |
| 15269 | ||
| 15270 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
15271 | case R_PPC64_SECTOFF: |
| 15272 | case R_PPC64_SECTOFF_LO: | |
| 15273 | case R_PPC64_SECTOFF_HI: | |
| 15274 | case R_PPC64_SECTOFF_DS: | |
| 15275 | case R_PPC64_SECTOFF_LO_DS: | |
| 15276 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 15277 | if (sec != NULL) |
| 65f38f15 | 15278 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
15279 | break; |
| 15280 | ||
| 25f23106 AM |
15281 | case R_PPC64_REL16: |
| 15282 | case R_PPC64_REL16_LO: | |
| 15283 | case R_PPC64_REL16_HI: | |
| 15284 | case R_PPC64_REL16_HA: | |
| a680de9a | 15285 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
15286 | break; |
| 15287 | ||
| 721956f4 AM |
15288 | case R_PPC64_REL14: |
| 15289 | case R_PPC64_REL14_BRNTAKEN: | |
| 15290 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
15291 | case R_PPC64_REL24: |
| 15292 | break; | |
| 15293 | ||
| 411e1bfb AM |
15294 | case R_PPC64_TPREL16: |
| 15295 | case R_PPC64_TPREL16_LO: | |
| 15296 | case R_PPC64_TPREL16_HI: | |
| 15297 | case R_PPC64_TPREL16_HA: | |
| 15298 | case R_PPC64_TPREL16_DS: | |
| 15299 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
15300 | case R_PPC64_TPREL16_HIGH: |
| 15301 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
15302 | case R_PPC64_TPREL16_HIGHER: |
| 15303 | case R_PPC64_TPREL16_HIGHERA: | |
| 15304 | case R_PPC64_TPREL16_HIGHEST: | |
| 15305 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
15306 | if (h != NULL |
| 15307 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 15308 | && h->elf.dynindx == -1) | |
| 15309 | { | |
| 15310 | /* Make this relocation against an undefined weak symbol | |
| 15311 | resolve to zero. This is really just a tweak, since | |
| 15312 | code using weak externs ought to check that they are | |
| 15313 | defined before using them. */ | |
| 15314 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 15315 | ||
| 95f0d0d2 | 15316 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
15317 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 15318 | if (insn != 0) | |
| 95f0d0d2 | 15319 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
15320 | break; |
| 15321 | } | |
| 989f9879 AM |
15322 | if (htab->elf.tls_sec != NULL) |
| 15323 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
15324 | /* The TPREL16 relocs shouldn't really be used in shared |
| 15325 | libs or with non-local symbols as that will result in | |
| 15326 | DT_TEXTREL being set, but support them anyway. */ | |
| 15327 | goto dodyn; | |
| 411e1bfb AM |
15328 | |
| 15329 | case R_PPC64_DTPREL16: | |
| 15330 | case R_PPC64_DTPREL16_LO: | |
| 15331 | case R_PPC64_DTPREL16_HI: | |
| 15332 | case R_PPC64_DTPREL16_HA: | |
| 15333 | case R_PPC64_DTPREL16_DS: | |
| 15334 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
15335 | case R_PPC64_DTPREL16_HIGH: |
| 15336 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
15337 | case R_PPC64_DTPREL16_HIGHER: |
| 15338 | case R_PPC64_DTPREL16_HIGHERA: | |
| 15339 | case R_PPC64_DTPREL16_HIGHEST: | |
| 15340 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
15341 | if (htab->elf.tls_sec != NULL) |
| 15342 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
15343 | break; |
| 15344 | ||
| 45965137 AM |
15345 | case R_PPC64_ADDR64_LOCAL: |
| 15346 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 15347 | ? h->elf.other | |
| 15348 | : sym->st_other); | |
| 15349 | break; | |
| 15350 | ||
| e515b051 AM |
15351 | case R_PPC64_DTPMOD64: |
| 15352 | relocation = 1; | |
| 15353 | addend = 0; | |
| 15354 | goto dodyn; | |
| 15355 | ||
| 411e1bfb | 15356 | case R_PPC64_TPREL64: |
| 989f9879 AM |
15357 | if (htab->elf.tls_sec != NULL) |
| 15358 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
15359 | goto dodyn; |
| 15360 | ||
| 15361 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
15362 | if (htab->elf.tls_sec != NULL) |
| 15363 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 15364 | /* Fall through. */ |
| 411e1bfb | 15365 | |
| 65f38f15 AM |
15366 | /* Relocations that may need to be propagated if this is a |
| 15367 | dynamic object. */ | |
| 04c9666a | 15368 | case R_PPC64_REL30: |
| 65f38f15 AM |
15369 | case R_PPC64_REL32: |
| 15370 | case R_PPC64_REL64: | |
| 15371 | case R_PPC64_ADDR14: | |
| 15372 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 15373 | case R_PPC64_ADDR14_BRTAKEN: | |
| 15374 | case R_PPC64_ADDR16: | |
| 15375 | case R_PPC64_ADDR16_DS: | |
| 15376 | case R_PPC64_ADDR16_HA: | |
| 15377 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
15378 | case R_PPC64_ADDR16_HIGH: |
| 15379 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15380 | case R_PPC64_ADDR16_HIGHER: |
| 15381 | case R_PPC64_ADDR16_HIGHERA: | |
| 15382 | case R_PPC64_ADDR16_HIGHEST: | |
| 15383 | case R_PPC64_ADDR16_HIGHESTA: | |
| 15384 | case R_PPC64_ADDR16_LO: | |
| 15385 | case R_PPC64_ADDR16_LO_DS: | |
| 15386 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
15387 | case R_PPC64_ADDR32: |
| 15388 | case R_PPC64_ADDR64: | |
| 15389 | case R_PPC64_UADDR16: | |
| 15390 | case R_PPC64_UADDR32: | |
| 15391 | case R_PPC64_UADDR64: | |
| 411e1bfb | 15392 | dodyn: |
| 5d1634d7 | 15393 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
15394 | break; |
| 15395 | ||
| 41bd81ab AM |
15396 | if (NO_OPD_RELOCS && is_opd) |
| 15397 | break; | |
| 15398 | ||
| 8a9e8e72 | 15399 | if (bfd_link_pic (info) |
| b1b07054 AM |
15400 | ? ((h == NULL |
| 15401 | || h->dyn_relocs != NULL) | |
| 15402 | && ((h != NULL && pc_dynrelocs (h)) | |
| 15403 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
15404 | : (h != NULL |
| 15405 | ? h->dyn_relocs != NULL | |
| d311bc8b | 15406 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 15407 | { |
| b34976b6 | 15408 | bfd_boolean skip, relocate; |
| 65f38f15 | 15409 | asection *sreloc; |
| 1cf1f670 | 15410 | bfd_vma out_off; |
| 82e66161 | 15411 | long indx = 0; |
| 65f38f15 AM |
15412 | |
| 15413 | /* When generating a dynamic object, these relocations | |
| 15414 | are copied into the output file to be resolved at run | |
| 15415 | time. */ | |
| 15416 | ||
| b34976b6 AM |
15417 | skip = FALSE; |
| 15418 | relocate = FALSE; | |
| 65f38f15 | 15419 | |
| 1cf1f670 AM |
15420 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 15421 | input_section, rel->r_offset); | |
| 15422 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 15423 | skip = TRUE; |
| 1cf1f670 | 15424 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 15425 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
15426 | out_off += (input_section->output_section->vma |
| 15427 | + input_section->output_offset); | |
| 15428 | outrel.r_offset = out_off; | |
| 411e1bfb | 15429 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 15430 | |
| 1cf1f670 AM |
15431 | /* Optimize unaligned reloc use. */ |
| 15432 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 15433 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 15434 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 15435 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 15436 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 15437 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 15438 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 15439 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 15440 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 15441 | ||
| 65f38f15 | 15442 | if (skip) |
| 0bb2d96a | 15443 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 15444 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
15445 | && !is_opd |
| 15446 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 15447 | { |
| 82e66161 AM |
15448 | indx = h->elf.dynindx; |
| 15449 | BFD_ASSERT (indx != -1); | |
| 15450 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 15451 | } |
| 65f38f15 AM |
15452 | else |
| 15453 | { | |
| 41bd81ab AM |
15454 | /* This symbol is local, or marked to become local, |
| 15455 | or this is an opd section reloc which must point | |
| 15456 | at a local function. */ | |
| 65f38f15 | 15457 | outrel.r_addend += relocation; |
| e86ce104 | 15458 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 15459 | { |
| 3fad3c7c | 15460 | if (is_opd && h != NULL) |
| afbe61cf AM |
15461 | { |
| 15462 | /* Lie about opd entries. This case occurs | |
| 15463 | when building shared libraries and we | |
| 15464 | reference a function in another shared | |
| 3fad3c7c AM |
15465 | lib. The same thing happens for a weak |
| 15466 | definition in an application that's | |
| 15467 | overridden by a strong definition in a | |
| 15468 | shared lib. (I believe this is a generic | |
| 15469 | bug in binutils handling of weak syms.) | |
| 15470 | In these cases we won't use the opd | |
| 1e2f5b6e | 15471 | entry in this lib. */ |
| b34976b6 | 15472 | unresolved_reloc = FALSE; |
| afbe61cf | 15473 | } |
| 25f23106 AM |
15474 | if (!is_opd |
| 15475 | && r_type == R_PPC64_ADDR64 | |
| 15476 | && (h != NULL | |
| 15477 | ? h->elf.type == STT_GNU_IFUNC | |
| 15478 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 15479 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 15480 | else | |
| 15481 | { | |
| 15482 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 15483 | |
| 25f23106 AM |
15484 | /* We need to relocate .opd contents for ld.so. |
| 15485 | Prelink also wants simple and consistent rules | |
| 15486 | for relocs. This make all RELATIVE relocs have | |
| 15487 | *r_offset equal to r_addend. */ | |
| 15488 | relocate = TRUE; | |
| 15489 | } | |
| 65f38f15 AM |
15490 | } |
| 15491 | else | |
| 15492 | { | |
| 25f23106 AM |
15493 | if (h != NULL |
| 15494 | ? h->elf.type == STT_GNU_IFUNC | |
| 15495 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 15496 | { | |
| 25f53a85 | 15497 | info->callbacks->einfo |
| 695344c0 | 15498 | /* xgettext:c-format */ |
| 174d0a74 | 15499 | (_("%H: %s for indirect " |
| c1c8c1ef | 15500 | "function `%pT' unsupported\n"), |
| 25f53a85 | 15501 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
15502 | ppc64_elf_howto_table[r_type]->name, |
| 15503 | sym_name); | |
| 15504 | ret = FALSE; | |
| 15505 | } | |
| cf35638d | 15506 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
15507 | ; |
| 15508 | else if (sec == NULL || sec->owner == NULL) | |
| 15509 | { | |
| 15510 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 15511 | return FALSE; |
| 65f38f15 AM |
15512 | } |
| 15513 | else | |
| 15514 | { | |
| 15515 | asection *osec; | |
| 15516 | ||
| 15517 | osec = sec->output_section; | |
| 15518 | indx = elf_section_data (osec)->dynindx; | |
| 15519 | ||
| 74541ad4 AM |
15520 | if (indx == 0) |
| 15521 | { | |
| 15522 | if ((osec->flags & SEC_READONLY) == 0 | |
| 15523 | && htab->elf.data_index_section != NULL) | |
| 15524 | osec = htab->elf.data_index_section; | |
| 15525 | else | |
| 15526 | osec = htab->elf.text_index_section; | |
| 15527 | indx = elf_section_data (osec)->dynindx; | |
| 15528 | } | |
| 15529 | BFD_ASSERT (indx != 0); | |
| 15530 | ||
| 65f38f15 AM |
15531 | /* We are turning this relocation into one |
| 15532 | against a section symbol, so subtract out | |
| 15533 | the output section's address but not the | |
| 15534 | offset of the input section in the output | |
| 15535 | section. */ | |
| 15536 | outrel.r_addend -= osec->vma; | |
| 15537 | } | |
| 15538 | ||
| 15539 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 15540 | } | |
| 15541 | } | |
| 15542 | ||
| 15543 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
15544 | if (h != NULL |
| 15545 | ? h->elf.type == STT_GNU_IFUNC | |
| 15546 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
15547 | { |
| 15548 | sreloc = htab->elf.irelplt; | |
| 15549 | if (indx == 0) | |
| 15550 | htab->local_ifunc_resolver = 1; | |
| 15551 | else if (is_static_defined (&h->elf)) | |
| 15552 | htab->maybe_local_ifunc_resolver = 1; | |
| 15553 | } | |
| 65f38f15 AM |
15554 | if (sreloc == NULL) |
| 15555 | abort (); | |
| 15556 | ||
| dfbb6ac9 AM |
15557 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 15558 | >= sreloc->size) | |
| 15559 | abort (); | |
| 947216bf AM |
15560 | loc = sreloc->contents; |
| 15561 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
15562 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 15563 | ||
| 15564 | /* If this reloc is against an external symbol, it will | |
| 15565 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
15566 | anything now. However, for the sake of prelink ensure |
| 15567 | that the section contents are a known value. */ | |
| 65f38f15 | 15568 | if (! relocate) |
| 81407a69 AM |
15569 | { |
| 15570 | unresolved_reloc = FALSE; | |
| 15571 | /* The value chosen here is quite arbitrary as ld.so | |
| 15572 | ignores section contents except for the special | |
| 15573 | case of .opd where the contents might be accessed | |
| 15574 | before relocation. Choose zero, as that won't | |
| 15575 | cause reloc overflow. */ | |
| 15576 | relocation = 0; | |
| 15577 | addend = 0; | |
| 15578 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 15579 | to improve backward compatibility with older | |
| 15580 | versions of ld. */ | |
| 15581 | if (r_type == R_PPC64_ADDR64) | |
| 15582 | addend = outrel.r_addend; | |
| 15583 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 15584 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 15585 | addend = outrel.r_offset; |
| 81407a69 | 15586 | } |
| 65f38f15 | 15587 | } |
| 5bd4f169 AM |
15588 | break; |
| 15589 | ||
| 65f38f15 AM |
15590 | case R_PPC64_COPY: |
| 15591 | case R_PPC64_GLOB_DAT: | |
| 15592 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15593 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15594 | case R_PPC64_RELATIVE: |
| 15595 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15596 | files. */ | |
| ae9a127f | 15597 | /* Fall through. */ |
| 65f38f15 AM |
15598 | |
| 15599 | case R_PPC64_PLTGOT16: | |
| 15600 | case R_PPC64_PLTGOT16_DS: | |
| 15601 | case R_PPC64_PLTGOT16_HA: | |
| 15602 | case R_PPC64_PLTGOT16_HI: | |
| 15603 | case R_PPC64_PLTGOT16_LO: | |
| 15604 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15605 | case R_PPC64_PLTREL32: | |
| 15606 | case R_PPC64_PLTREL64: | |
| 15607 | /* These ones haven't been implemented yet. */ | |
| 15608 | ||
| 25f53a85 | 15609 | info->callbacks->einfo |
| 695344c0 | 15610 | /* xgettext:c-format */ |
| c1c8c1ef | 15611 | (_("%P: %pB: %s is not supported for `%pT'\n"), |
| d003868e | 15612 | input_bfd, |
| 4ce794b7 | 15613 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15614 | |
| 15615 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15616 | ret = FALSE; |
| c316a17c | 15617 | goto copy_reloc; |
| 65f38f15 | 15618 | } |
| 5bd4f169 | 15619 | |
| 67f0cbdb AM |
15620 | /* Multi-instruction sequences that access the TOC can be |
| 15621 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 07d6d2b8 | 15622 | to nop; addi rb,r2,x; */ |
| 67f0cbdb AM |
15623 | switch (r_type) |
| 15624 | { | |
| 15625 | default: | |
| 15626 | break; | |
| 15627 | ||
| 15628 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15629 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15630 | case R_PPC64_GOT_TPREL16_HI: | |
| 15631 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15632 | case R_PPC64_GOT16_HI: | |
| 15633 | case R_PPC64_TOC16_HI: | |
| 15634 | /* These relocs would only be useful if building up an | |
| 15635 | offset to later add to r2, perhaps in an indexed | |
| 15636 | addressing mode instruction. Don't try to optimize. | |
| 15637 | Unfortunately, the possibility of someone building up an | |
| 15638 | offset like this or even with the HA relocs, means that | |
| 15639 | we need to check the high insn when optimizing the low | |
| 15640 | insn. */ | |
| 15641 | break; | |
| 15642 | ||
| 23cedd1d AM |
15643 | case R_PPC64_PLTCALL: |
| 15644 | if (unresolved_reloc) | |
| 15645 | { | |
| 15646 | /* No plt entry. Make this into a direct call. */ | |
| 15647 | bfd_byte *p = contents + rel->r_offset; | |
| 15648 | insn = bfd_get_32 (input_bfd, p); | |
| 15649 | insn &= 1; | |
| 15650 | bfd_put_32 (input_bfd, B_DOT | insn, p); | |
| 15651 | bfd_put_32 (input_bfd, NOP, p + 4); | |
| 15652 | unresolved_reloc = save_unresolved_reloc; | |
| 15653 | r_type = R_PPC64_REL24; | |
| 15654 | } | |
| 15655 | break; | |
| 15656 | ||
| 15657 | case R_PPC64_PLTSEQ: | |
| 15658 | if (unresolved_reloc) | |
| 15659 | { | |
| 15660 | unresolved_reloc = FALSE; | |
| 15661 | goto nop_it; | |
| 15662 | } | |
| 15663 | break; | |
| 15664 | ||
| 15665 | case R_PPC64_PLT16_HA: | |
| 15666 | if (unresolved_reloc) | |
| 15667 | { | |
| 15668 | unresolved_reloc = FALSE; | |
| 15669 | goto nop_it; | |
| 15670 | } | |
| 15671 | /* Fall through. */ | |
| 67f0cbdb AM |
15672 | case R_PPC64_GOT_TLSLD16_HA: |
| 15673 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15674 | case R_PPC64_GOT_TPREL16_HA: | |
| 15675 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15676 | case R_PPC64_GOT16_HA: | |
| 15677 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15678 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15679 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 | 15680 | { |
| 23cedd1d AM |
15681 | bfd_byte *p; |
| 15682 | nop_it: | |
| 15683 | p = contents + (rel->r_offset & ~3); | |
| 98528052 | 15684 | bfd_put_32 (input_bfd, NOP, p); |
| d830549d | 15685 | goto copy_reloc; |
| 98528052 | 15686 | } |
| 67f0cbdb AM |
15687 | break; |
| 15688 | ||
| 23cedd1d AM |
15689 | case R_PPC64_PLT16_LO: |
| 15690 | case R_PPC64_PLT16_LO_DS: | |
| 15691 | if (unresolved_reloc) | |
| 15692 | { | |
| 15693 | unresolved_reloc = FALSE; | |
| 15694 | goto nop_it; | |
| 15695 | } | |
| 15696 | /* Fall through. */ | |
| 67f0cbdb AM |
15697 | case R_PPC64_GOT_TLSLD16_LO: |
| 15698 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15699 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15700 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15701 | case R_PPC64_GOT16_LO: | |
| 15702 | case R_PPC64_GOT16_LO_DS: | |
| 15703 | case R_PPC64_TOC16_LO: | |
| 15704 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15705 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15706 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15707 | { |
| 15708 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15709 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15710 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15711 | { | |
| 15712 | /* Transform addic to addi when we change reg. */ | |
| 15713 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15714 | insn |= (14u << 26) | (2 << 16); | |
| 15715 | } | |
| 15716 | else | |
| 67f0cbdb | 15717 | { |
| 98528052 AM |
15718 | insn &= ~(0x1f << 16); |
| 15719 | insn |= 2 << 16; | |
| 67f0cbdb | 15720 | } |
| 560c8763 | 15721 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15722 | } |
| 15723 | break; | |
| 9a23f96e AM |
15724 | |
| 15725 | case R_PPC64_TPREL16_HA: | |
| 15726 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15727 | { | |
| 15728 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15729 | insn = bfd_get_32 (input_bfd, p); | |
| 15730 | if ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 15731 | != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */) | |
| 15732 | /* xgettext:c-format */ | |
| 15733 | info->callbacks->minfo | |
| 15734 | (_("%H: warning: %s unexpected insn %#x.\n"), | |
| d830549d AM |
15735 | input_bfd, input_section, rel->r_offset, |
| 15736 | ppc64_elf_howto_table[r_type]->name, insn); | |
| 9a23f96e | 15737 | else |
| d830549d AM |
15738 | { |
| 15739 | bfd_put_32 (input_bfd, NOP, p); | |
| 15740 | goto copy_reloc; | |
| 15741 | } | |
| 9a23f96e AM |
15742 | } |
| 15743 | break; | |
| 15744 | ||
| 15745 | case R_PPC64_TPREL16_LO: | |
| 15746 | case R_PPC64_TPREL16_LO_DS: | |
| 15747 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15748 | { | |
| 15749 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15750 | insn = bfd_get_32 (input_bfd, p); | |
| 15751 | insn &= ~(0x1f << 16); | |
| 15752 | insn |= 13 << 16; | |
| 15753 | bfd_put_32 (input_bfd, insn, p); | |
| 15754 | } | |
| 15755 | break; | |
| 67f0cbdb AM |
15756 | } |
| 15757 | ||
| 65f38f15 AM |
15758 | /* Do any further special processing. */ |
| 15759 | switch (r_type) | |
| 15760 | { | |
| 15761 | default: | |
| 15762 | break; | |
| 15763 | ||
| 25f23106 | 15764 | case R_PPC64_REL16_HA: |
| a680de9a | 15765 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15766 | case R_PPC64_ADDR16_HA: |
| 15767 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15768 | case R_PPC64_ADDR16_HIGHERA: |
| 15769 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15770 | case R_PPC64_TOC16_HA: |
| 15771 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15772 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15773 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15774 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15775 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15776 | case R_PPC64_DTPREL16_HA: |
| 15777 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15778 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15779 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15780 | /* It's just possible that this symbol is a weak symbol |
| 15781 | that's not actually defined anywhere. In that case, | |
| 15782 | 'sec' would be NULL, and we should leave the symbol | |
| 15783 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15784 | if (sec == NULL) |
| 15785 | break; | |
| 1a0670f3 | 15786 | /* Fall through. */ |
| 5c5f6e17 AM |
15787 | |
| 15788 | case R_PPC64_GOT16_HA: | |
| 15789 | case R_PPC64_PLTGOT16_HA: | |
| 15790 | case R_PPC64_PLT16_HA: | |
| 15791 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15792 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15793 | case R_PPC64_GOT_TPREL16_HA: | |
| 15794 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15795 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15796 | Bits 0:15 are not used. */ | |
| 15797 | addend += 0x8000; | |
| 65f38f15 AM |
15798 | break; |
| 15799 | ||
| 15800 | case R_PPC64_ADDR16_DS: | |
| 15801 | case R_PPC64_ADDR16_LO_DS: | |
| 15802 | case R_PPC64_GOT16_DS: | |
| 15803 | case R_PPC64_GOT16_LO_DS: | |
| 15804 | case R_PPC64_PLT16_LO_DS: | |
| 15805 | case R_PPC64_SECTOFF_DS: | |
| 15806 | case R_PPC64_SECTOFF_LO_DS: | |
| 15807 | case R_PPC64_TOC16_DS: | |
| 15808 | case R_PPC64_TOC16_LO_DS: | |
| 15809 | case R_PPC64_PLTGOT16_DS: | |
| 15810 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15811 | case R_PPC64_GOT_TPREL16_DS: |
| 15812 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15813 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15814 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15815 | case R_PPC64_TPREL16_DS: | |
| 15816 | case R_PPC64_TPREL16_LO_DS: | |
| 15817 | case R_PPC64_DTPREL16_DS: | |
| 15818 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15819 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15820 | mask = 3; | |
| a680de9a PB |
15821 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15822 | the value must be a multiple of 16. This is somewhat of | |
| 15823 | a hack, but the "correct" way to do this by defining _DQ | |
| 15824 | forms of all the _DS relocs bloats all reloc switches in | |
| 15825 | this file. It doesn't make much sense to use these | |
| 15826 | relocs in data, so testing the insn should be safe. */ | |
| 15827 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15828 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15829 | mask = 15; |
| a680de9a PB |
15830 | relocation += addend; |
| 15831 | addend = insn & (mask ^ 3); | |
| 15832 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15833 | { |
| a680de9a | 15834 | relocation ^= relocation & mask; |
| 25f53a85 | 15835 | info->callbacks->einfo |
| 695344c0 | 15836 | /* xgettext:c-format */ |
| 174d0a74 | 15837 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15838 | input_bfd, input_section, rel->r_offset, |
| d830549d | 15839 | ppc64_elf_howto_table[r_type]->name, |
| adadcc0c | 15840 | mask + 1); |
| 65f38f15 | 15841 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15842 | ret = FALSE; |
| c316a17c | 15843 | goto copy_reloc; |
| 65f38f15 AM |
15844 | } |
| 15845 | break; | |
| 5bd4f169 AM |
15846 | } |
| 15847 | ||
| 239e1f3a AM |
15848 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15849 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15850 | not process them. */ | |
| d830549d | 15851 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 | 15852 | if (unresolved_reloc |
| 239e1f3a | 15853 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15854 | && h->elf.def_dynamic) |
| 15855 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15856 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15857 | { |
| 25f53a85 | 15858 | info->callbacks->einfo |
| 695344c0 | 15859 | /* xgettext:c-format */ |
| c1c8c1ef | 15860 | (_("%H: unresolvable %s against `%pT'\n"), |
| 25f53a85 | 15861 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15862 | howto->name, |
| 039b3fef | 15863 | h->elf.root.root.string); |
| b34976b6 | 15864 | ret = FALSE; |
| 9c07fe7c | 15865 | } |
| 5bd4f169 | 15866 | |
| b80eed39 AM |
15867 | /* 16-bit fields in insns mostly have signed values, but a |
| 15868 | few insns have 16-bit unsigned values. Really, we should | |
| 15869 | have different reloc types. */ | |
| 15870 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15871 | && howto->dst_mask == 0xffff | |
| 15872 | && (input_section->flags & SEC_CODE) != 0) | |
| 15873 | { | |
| 15874 | enum complain_overflow complain = complain_overflow_signed; | |
| 15875 | ||
| 15876 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15877 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15878 | complain = complain_overflow_bitfield; | |
| 15879 | else if (howto->rightshift == 0 | |
| 15880 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15881 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15882 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15883 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15884 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15885 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15886 | complain = complain_overflow_unsigned; |
| 15887 | if (howto->complain_on_overflow != complain) | |
| 15888 | { | |
| 15889 | alt_howto = *howto; | |
| 15890 | alt_howto.complain_on_overflow = complain; | |
| 15891 | howto = &alt_howto; | |
| 15892 | } | |
| 15893 | } | |
| 15894 | ||
| a680de9a PB |
15895 | if (r_type == R_PPC64_REL16DX_HA) |
| 15896 | { | |
| 15897 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15898 | if (rel->r_offset + 4 > input_section->size) | |
| 15899 | r = bfd_reloc_outofrange; | |
| 15900 | else | |
| 15901 | { | |
| 15902 | relocation += addend; | |
| 15903 | relocation -= (rel->r_offset | |
| 15904 | + input_section->output_offset | |
| 15905 | + input_section->output_section->vma); | |
| 3de43e7b | 15906 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15907 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15908 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15909 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15910 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15911 | r = bfd_reloc_ok; | |
| 3de43e7b | 15912 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15913 | r = bfd_reloc_overflow; |
| 15914 | } | |
| 15915 | } | |
| 15916 | else | |
| 15917 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15918 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15919 | |
| ef60b7ff | 15920 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15921 | { |
| bc30df16 | 15922 | char *more_info = NULL; |
| b80eed39 | 15923 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15924 | |
| 15925 | if (reloc_dest != DEST_NORMAL) | |
| 15926 | { | |
| 15927 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15928 | if (more_info != NULL) | |
| 15929 | { | |
| 15930 | strcpy (more_info, reloc_name); | |
| 15931 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15932 | ? " (OPD)" : " (stub)")); | |
| 15933 | reloc_name = more_info; | |
| 15934 | } | |
| 15935 | } | |
| 15936 | ||
| cd27b276 | 15937 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15938 | { |
| 8131c122 AM |
15939 | /* On code like "if (foo) foo();" don't report overflow |
| 15940 | on a branch to zero when foo is undefined. */ | |
| 15941 | if (!warned | |
| 15942 | && (reloc_dest == DEST_STUB | |
| 15943 | || !(h != NULL | |
| 15944 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15945 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15946 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15947 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15948 | sym_name, reloc_name, | |
| 15949 | orig_rel.r_addend, | |
| 15950 | input_bfd, input_section, | |
| 15951 | rel->r_offset); | |
| ef60b7ff AM |
15952 | } |
| 15953 | else | |
| 15954 | { | |
| 25f53a85 | 15955 | info->callbacks->einfo |
| 695344c0 | 15956 | /* xgettext:c-format */ |
| c1c8c1ef | 15957 | (_("%H: %s against `%pT': error %d\n"), |
| 25f53a85 | 15958 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15959 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15960 | ret = FALSE; |
| ef60b7ff | 15961 | } |
| bc30df16 AM |
15962 | if (more_info != NULL) |
| 15963 | free (more_info); | |
| 5bd4f169 | 15964 | } |
| c316a17c AM |
15965 | copy_reloc: |
| 15966 | if (wrel != rel) | |
| 15967 | *wrel = *rel; | |
| 15968 | } | |
| 15969 | ||
| 15970 | if (wrel != rel) | |
| 15971 | { | |
| 15972 | Elf_Internal_Shdr *rel_hdr; | |
| 15973 | size_t deleted = rel - wrel; | |
| 15974 | ||
| 15975 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15976 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15977 | if (rel_hdr->sh_size == 0) | |
| 15978 | { | |
| 15979 | /* It is too late to remove an empty reloc section. Leave | |
| 15980 | one NONE reloc. | |
| 15981 | ??? What is wrong with an empty section??? */ | |
| 15982 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15983 | deleted -= 1; | |
| 15984 | } | |
| 15985 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15986 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15987 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15988 | } |
| 15989 | ||
| 645ea6a9 AM |
15990 | /* If we're emitting relocations, then shortly after this function |
| 15991 | returns, reloc offsets and addends for this section will be | |
| 15992 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15993 | file rather than the input. Save a copy of the relocs for |
| 15994 | opd_entry_value. */ | |
| 0e1862bb | 15995 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15996 | { |
| 15997 | bfd_size_type amt; | |
| 15998 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15999 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
16000 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 16001 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
16002 | if (rel == NULL) |
| 16003 | return FALSE; | |
| 16004 | memcpy (rel, relocs, amt); | |
| 16005 | } | |
| 5bd4f169 AM |
16006 | return ret; |
| 16007 | } | |
| 16008 | ||
| 754021d0 AM |
16009 | /* Adjust the value of any local symbols in opd sections. */ |
| 16010 | ||
| 6e0b88f1 | 16011 | static int |
| 754021d0 AM |
16012 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 16013 | const char *name ATTRIBUTE_UNUSED, | |
| 16014 | Elf_Internal_Sym *elfsym, | |
| 16015 | asection *input_sec, | |
| 16016 | struct elf_link_hash_entry *h) | |
| 16017 | { | |
| 74f0fb50 AM |
16018 | struct _opd_sec_data *opd; |
| 16019 | long adjust; | |
| 754021d0 AM |
16020 | bfd_vma value; |
| 16021 | ||
| 4025353c | 16022 | if (h != NULL) |
| 6e0b88f1 | 16023 | return 1; |
| 4025353c | 16024 | |
| 74f0fb50 AM |
16025 | opd = get_opd_info (input_sec); |
| 16026 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 16027 | return 1; |
| 754021d0 AM |
16028 | |
| 16029 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 16030 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
16031 | value -= input_sec->output_section->vma; |
| 16032 | ||
| 51aecdc5 | 16033 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 16034 | if (adjust == -1) |
| 6e0b88f1 AM |
16035 | return 2; |
| 16036 | ||
| 16037 | elfsym->st_value += adjust; | |
| 16038 | return 1; | |
| 754021d0 AM |
16039 | } |
| 16040 | ||
| 5bd4f169 AM |
16041 | /* Finish up dynamic symbol handling. We set the contents of various |
| 16042 | dynamic sections here. */ | |
| 16043 | ||
| b34976b6 | 16044 | static bfd_boolean |
| 4ce794b7 AM |
16045 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 16046 | struct bfd_link_info *info, | |
| 16047 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 16048 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 16049 | { |
| 65f38f15 | 16050 | struct ppc_link_hash_table *htab; |
| 8387904d | 16051 | struct plt_entry *ent; |
| 5bd4f169 | 16052 | |
| 65f38f15 | 16053 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
16054 | if (htab == NULL) |
| 16055 | return FALSE; | |
| 5bd4f169 | 16056 | |
| 49c09209 AM |
16057 | if (!htab->opd_abi && !h->def_regular) |
| 16058 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 16059 | if (ent->plt.offset != (bfd_vma) -1) | |
| 16060 | { | |
| 16061 | /* Mark the symbol as undefined, rather than as | |
| 16062 | defined in glink. Leave the value if there were | |
| 16063 | any relocations where pointer equality matters | |
| 16064 | (this is a clue for the dynamic linker, to make | |
| 16065 | function pointer comparisons work between an | |
| 16066 | application and shared library), otherwise set it | |
| 16067 | to zero. */ | |
| 16068 | sym->st_shndx = SHN_UNDEF; | |
| 16069 | if (!h->pointer_equality_needed) | |
| 16070 | sym->st_value = 0; | |
| 16071 | else if (!h->ref_regular_nonweak) | |
| 16072 | { | |
| 16073 | /* This breaks function pointer comparisons, but | |
| 16074 | that is better than breaking tests for a NULL | |
| 16075 | function pointer. */ | |
| 16076 | sym->st_value = 0; | |
| 16077 | } | |
| 16078 | break; | |
| 16079 | } | |
| 5bd4f169 | 16080 | |
| f5385ebf | 16081 | if (h->needs_copy) |
| 5bd4f169 | 16082 | { |
| 65f38f15 | 16083 | /* This symbol needs a copy reloc. Set it up. */ |
| 49c09209 | 16084 | Elf_Internal_Rela rela; |
| 5474d94f | 16085 | asection *srel; |
| 49c09209 | 16086 | bfd_byte *loc; |
| 5bd4f169 | 16087 | |
| 65f38f15 AM |
16088 | if (h->dynindx == -1 |
| 16089 | || (h->root.type != bfd_link_hash_defined | |
| 16090 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
16091 | || htab->elf.srelbss == NULL |
| 16092 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 16093 | abort (); |
| 5bd4f169 AM |
16094 | |
| 16095 | rela.r_offset = (h->root.u.def.value | |
| 16096 | + h->root.u.def.section->output_section->vma | |
| 16097 | + h->root.u.def.section->output_offset); | |
| 16098 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 16099 | rela.r_addend = 0; | |
| afbf7e8e | 16100 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
16101 | srel = htab->elf.sreldynrelro; |
| 16102 | else | |
| 16103 | srel = htab->elf.srelbss; | |
| 16104 | loc = srel->contents; | |
| 16105 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 16106 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
16107 | } |
| 16108 | ||
| b34976b6 | 16109 | return TRUE; |
| 5bd4f169 AM |
16110 | } |
| 16111 | ||
| 65f38f15 AM |
16112 | /* Used to decide how to sort relocs in an optimal manner for the |
| 16113 | dynamic linker, before writing them out. */ | |
| 16114 | ||
| 16115 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
16116 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 16117 | const asection *rel_sec, | |
| 16118 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 16119 | { |
| 04c9666a | 16120 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
16121 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 16122 | ||
| 33e44f2e | 16123 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 16124 | return reloc_class_ifunc; |
| a33d1f77 | 16125 | |
| 4ce794b7 | 16126 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 16127 | switch (r_type) |
| 65f38f15 AM |
16128 | { |
| 16129 | case R_PPC64_RELATIVE: | |
| 16130 | return reloc_class_relative; | |
| 16131 | case R_PPC64_JMP_SLOT: | |
| 16132 | return reloc_class_plt; | |
| 16133 | case R_PPC64_COPY: | |
| 16134 | return reloc_class_copy; | |
| 16135 | default: | |
| 16136 | return reloc_class_normal; | |
| 16137 | } | |
| 16138 | } | |
| 16139 | ||
| 5bd4f169 AM |
16140 | /* Finish up the dynamic sections. */ |
| 16141 | ||
| b34976b6 | 16142 | static bfd_boolean |
| 4ce794b7 AM |
16143 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 16144 | struct bfd_link_info *info) | |
| 5bd4f169 | 16145 | { |
| 65f38f15 AM |
16146 | struct ppc_link_hash_table *htab; |
| 16147 | bfd *dynobj; | |
| 5bd4f169 | 16148 | asection *sdyn; |
| 5bd4f169 | 16149 | |
| 65f38f15 | 16150 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
16151 | if (htab == NULL) |
| 16152 | return FALSE; | |
| 16153 | ||
| 65f38f15 | 16154 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 16155 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 16156 | |
| 65f38f15 | 16157 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 16158 | { |
| 5bd4f169 AM |
16159 | Elf64_External_Dyn *dyncon, *dynconend; |
| 16160 | ||
| 33e44f2e | 16161 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 16162 | abort (); |
| 5bd4f169 AM |
16163 | |
| 16164 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 16165 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
16166 | for (; dyncon < dynconend; dyncon++) |
| 16167 | { | |
| 16168 | Elf_Internal_Dyn dyn; | |
| 19397422 | 16169 | asection *s; |
| 5bd4f169 AM |
16170 | |
| 16171 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 16172 | ||
| 16173 | switch (dyn.d_tag) | |
| 16174 | { | |
| 65f38f15 AM |
16175 | default: |
| 16176 | continue; | |
| 5bd4f169 | 16177 | |
| 5d1634d7 | 16178 | case DT_PPC64_GLINK: |
| 4ce794b7 | 16179 | s = htab->glink; |
| 6348e046 | 16180 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
16181 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 16182 | of glink rather than the first entry point, which is | |
| 16183 | what ld.so needs, and now have a bigger stub to | |
| 16184 | support automatic multiple TOCs. */ | |
| 9e390558 | 16185 | dyn.d_un.d_ptr += GLINK_PLTRESOLVE_SIZE (htab) - 8 * 4; |
| 5d1634d7 AM |
16186 | break; |
| 16187 | ||
| 19397422 AM |
16188 | case DT_PPC64_OPD: |
| 16189 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
16190 | if (s == NULL) |
| 16191 | continue; | |
| 16192 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
16193 | break; |
| 16194 | ||
| e8910a83 AM |
16195 | case DT_PPC64_OPT: |
| 16196 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 16197 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
16198 | if (htab->has_plt_localentry0) |
| 16199 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
16200 | break; |
| 16201 | ||
| 19397422 AM |
16202 | case DT_PPC64_OPDSZ: |
| 16203 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
16204 | if (s == NULL) |
| 16205 | continue; | |
| eea6121a | 16206 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
16207 | break; |
| 16208 | ||
| 65f38f15 | 16209 | case DT_PLTGOT: |
| 33e44f2e | 16210 | s = htab->elf.splt; |
| 6348e046 | 16211 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
16212 | break; |
| 16213 | ||
| 16214 | case DT_JMPREL: | |
| 33e44f2e | 16215 | s = htab->elf.srelplt; |
| 6348e046 | 16216 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 16217 | break; |
| 5bd4f169 | 16218 | |
| 65f38f15 | 16219 | case DT_PLTRELSZ: |
| 33e44f2e | 16220 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 16221 | break; |
| 82e66161 AM |
16222 | |
| 16223 | case DT_TEXTREL: | |
| 16224 | if (htab->local_ifunc_resolver) | |
| 16225 | info->callbacks->einfo | |
| 16226 | (_("%X%P: text relocations and GNU indirect " | |
| 16227 | "functions will result in a segfault at runtime\n")); | |
| 16228 | else if (htab->maybe_local_ifunc_resolver) | |
| 16229 | info->callbacks->einfo | |
| 16230 | (_("%P: warning: text relocations and GNU indirect " | |
| 16231 | "functions may result in a segfault at runtime\n")); | |
| 16232 | continue; | |
| 5bd4f169 | 16233 | } |
| 5bd4f169 | 16234 | |
| 65f38f15 | 16235 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 16236 | } |
| 5bd4f169 AM |
16237 | } |
| 16238 | ||
| 6528b6eb AM |
16239 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 16240 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
16241 | { |
| 16242 | /* Fill in the first entry in the global offset table. | |
| 16243 | We use it to hold the link-time TOCbase. */ | |
| 16244 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 16245 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 16246 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
16247 | |
| 16248 | /* Set .got entry size. */ | |
| 33e44f2e | 16249 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
16250 | } |
| 16251 | ||
| 6528b6eb AM |
16252 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 16253 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
16254 | { |
| 16255 | /* Set .plt entry size. */ | |
| 33e44f2e | 16256 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 16257 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
16258 | } |
| 16259 | ||
| 84f5d08e AM |
16260 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 16261 | brlt ourselves if emitrelocations. */ | |
| 16262 | if (htab->brlt != NULL | |
| 16263 | && htab->brlt->reloc_count != 0 | |
| 16264 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 16265 | htab->brlt, | |
| d4730f92 | 16266 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
16267 | elf_section_data (htab->brlt)->relocs, |
| 16268 | NULL)) | |
| 16269 | return FALSE; | |
| 16270 | ||
| 176a0d42 AM |
16271 | if (htab->glink != NULL |
| 16272 | && htab->glink->reloc_count != 0 | |
| 16273 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 16274 | htab->glink, | |
| d4730f92 | 16275 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
16276 | elf_section_data (htab->glink)->relocs, |
| 16277 | NULL)) | |
| 16278 | return FALSE; | |
| 16279 | ||
| 58d180e8 | 16280 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
16281 | && htab->glink_eh_frame->size != 0) |
| 16282 | { | |
| 16283 | bfd_vma val; | |
| 16284 | bfd_byte *p; | |
| d4aaa2a0 | 16285 | struct map_stub *group; |
| 2e0ce1c8 | 16286 | size_t align = 4; |
| da44f4e5 | 16287 | |
| 2e0ce1c8 AM |
16288 | p = htab->glink_eh_frame->contents; |
| 16289 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
16290 | |
| 16291 | for (group = htab->group; group != NULL; group = group->next) | |
| 16292 | if (group->stub_sec != NULL) | |
| da44f4e5 | 16293 | { |
| da44f4e5 | 16294 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
16295 | val = (group->stub_sec->output_section->vma |
| 16296 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
16297 | val -= (htab->glink_eh_frame->output_section->vma |
| 16298 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 16299 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
16300 | if (val + 0x80000000 > 0xffffffff) |
| 16301 | { | |
| cf97bcb0 AM |
16302 | _bfd_error_handler |
| 16303 | (_("%s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 16304 | group->stub_sec->name); |
| da44f4e5 AM |
16305 | return FALSE; |
| 16306 | } | |
| d4aaa2a0 AM |
16307 | bfd_put_32 (dynobj, val, p + 8); |
| 16308 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
16309 | } |
| 16310 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 16311 | { | |
| da44f4e5 AM |
16312 | /* Offset to .glink. */ |
| 16313 | val = (htab->glink->output_section->vma | |
| 16314 | + htab->glink->output_offset | |
| 16315 | + 8); | |
| 16316 | val -= (htab->glink_eh_frame->output_section->vma | |
| 16317 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 16318 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
16319 | if (val + 0x80000000 > 0xffffffff) |
| 16320 | { | |
| cf97bcb0 AM |
16321 | _bfd_error_handler |
| 16322 | (_("%s offset too large for .eh_frame sdata4 encoding"), | |
| da44f4e5 AM |
16323 | htab->glink->name); |
| 16324 | return FALSE; | |
| 16325 | } | |
| d4aaa2a0 AM |
16326 | bfd_put_32 (dynobj, val, p + 8); |
| 16327 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
16328 | } |
| 16329 | ||
| 16330 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 16331 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 16332 | htab->glink_eh_frame, | |
| 16333 | htab->glink_eh_frame->contents)) | |
| 16334 | return FALSE; | |
| 16335 | } | |
| 58d180e8 | 16336 | |
| e717da7e | 16337 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
16338 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 16339 | bfd. */ | |
| c72f2fb2 | 16340 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
16341 | { |
| 16342 | asection *s; | |
| 7b53ace3 | 16343 | |
| 0c8d6e5c | 16344 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
16345 | continue; |
| 16346 | ||
| e717da7e AM |
16347 | s = ppc64_elf_tdata (dynobj)->got; |
| 16348 | if (s != NULL | |
| eea6121a | 16349 | && s->size != 0 |
| e717da7e AM |
16350 | && s->output_section != bfd_abs_section_ptr |
| 16351 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 16352 | s->contents, s->output_offset, | |
| eea6121a | 16353 | s->size)) |
| e717da7e AM |
16354 | return FALSE; |
| 16355 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 16356 | if (s != NULL | |
| eea6121a | 16357 | && s->size != 0 |
| e717da7e AM |
16358 | && s->output_section != bfd_abs_section_ptr |
| 16359 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 16360 | s->contents, s->output_offset, | |
| eea6121a | 16361 | s->size)) |
| e717da7e AM |
16362 | return FALSE; |
| 16363 | } | |
| f6c52c13 | 16364 | |
| b34976b6 | 16365 | return TRUE; |
| 5bd4f169 AM |
16366 | } |
| 16367 | ||
| 5bd4f169 | 16368 | #include "elf64-target.h" |
| 7b8e7dad AM |
16369 | |
| 16370 | /* FreeBSD support */ | |
| 16371 | ||
| 16372 | #undef TARGET_LITTLE_SYM | |
| 16373 | #undef TARGET_LITTLE_NAME | |
| 16374 | ||
| 16375 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 16376 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
16377 | #undef TARGET_BIG_NAME |
| 16378 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 16379 | ||
| 16380 | #undef ELF_OSABI | |
| 16381 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 16382 | ||
| 16383 | #undef elf64_bed | |
| 16384 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 16385 | ||
| 16386 | #include "elf64-target.h" |