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 | |
| 04c6a44c | 67 | #define ELF_COMMONPAGESIZE 0x10000 |
| ad8e1ba5 AM |
68 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 69 | ||
| 70 | #define elf_backend_want_got_sym 0 | |
| 71 | #define elf_backend_want_plt_sym 0 | |
| 72 | #define elf_backend_plt_alignment 3 | |
| 73 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 74 | #define elf_backend_got_header_size 8 |
| 5474d94f | 75 | #define elf_backend_want_dynrelro 1 |
| ad8e1ba5 AM |
76 | #define elf_backend_can_gc_sections 1 |
| 77 | #define elf_backend_can_refcount 1 | |
| 78 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 79 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 80 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 81 | |
| e717da7e | 82 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 83 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 84 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
85 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 86 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
87 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 88 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 89 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 90 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| 8c5b4e52 | 91 | #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections |
| ad8e1ba5 AM |
92 | |
| 93 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
94 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 95 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 96 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| 9d19e4fd | 97 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
| ad8e1ba5 | 98 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol |
| 555cd476 | 99 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 100 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 101 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 102 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 103 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| c0e331c7 | 104 | #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible |
| 74f0fb50 | 105 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 106 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 | 107 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| ad8e1ba5 AM |
108 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol |
| 109 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 110 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
111 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 112 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 113 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 114 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 115 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
116 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 117 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 118 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 119 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 120 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 121 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 122 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| 8c5b4e52 | 123 | #define elf_backend_merge_symbol ppc64_elf_merge_symbol |
| bce964aa | 124 | #define elf_backend_get_reloc_section bfd_get_section_by_name |
| ad8e1ba5 | 125 | |
| 5bd4f169 AM |
126 | /* The name of the dynamic interpreter. This is put in the .interp |
| 127 | section. */ | |
| 128 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 129 | ||
| 130 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 131 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
132 | |
| 133 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 134 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 135 | |
| a078d95a AM |
136 | /* Offsets to some stack save slots. */ |
| 137 | #define STK_LR 16 | |
| 138 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 139 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
140 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 141 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 142 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 143 | ||
| 5bd4f169 | 144 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 145 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
146 | /* TOC base alignment. */ |
| 147 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
148 | |
| 149 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 150 | #define TP_OFFSET 0x7000 | |
| 151 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 152 | |
| ad8e1ba5 AM |
153 | /* .plt call stub instructions. The normal stub is like this, but |
| 154 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 155 | insert an addi to adjust r11. */ |
| a078d95a | 156 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
157 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 158 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 159 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 160 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 161 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
162 | #define BCTR 0x4e800420 /* bctr */ |
| 163 | ||
| 07d6d2b8 AM |
164 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| 165 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ | |
| 166 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 167 | ||
| 168 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ | |
| 169 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 170 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 171 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ | |
| 172 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 173 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 174 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 794e51c0 | 175 | |
| 71a39c98 | 176 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 | 177 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 07d6d2b8 | 178 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ |
| ac2df442 | 179 | |
| 07d6d2b8 AM |
180 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 181 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ | |
| 182 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 183 | |
| 07d6d2b8 | 184 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 006589cf AM |
185 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ |
| 186 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d | 187 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 07d6d2b8 | 188 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ |
| a345bc8d | 189 | |
| 9e390558 AM |
190 | /* __glink_PLTresolve stub instructions. We enter with the index in R0. */ |
| 191 | #define GLINK_PLTRESOLVE_SIZE(htab) \ | |
| 407aa07c | 192 | (8u + (htab->opd_abi ? 11 * 4 : 14 * 4)) |
| ee4bf8d2 AM |
193 | /* 0: */ |
| 194 | /* .quad plt0-1f */ | |
| 195 | /* __glink: */ | |
| 196 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 197 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 198 | /* 1: */ | |
| 199 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 200 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 201 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
202 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 203 | /* ld %12,0(%11) */ | |
| 204 | /* ld %2,8(%11) */ | |
| 205 | /* mtctr %12 */ | |
| 206 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 207 | /* bctr */ |
| b9e5796b AM |
208 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 209 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 210 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 211 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 212 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
213 | |
| 214 | /* Pad with this. */ | |
| 215 | #define NOP 0x60000000 | |
| 216 | ||
| 721956f4 AM |
217 | /* Some other nops. */ |
| 218 | #define CROR_151515 0x4def7b82 | |
| 219 | #define CROR_313131 0x4ffffb82 | |
| 220 | ||
| cedb70c5 | 221 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
222 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 223 | #define B_DOT 0x48000000 /* b . */ | |
| 224 | ||
| 225 | /* After that, we need two instructions to load the index, followed by | |
| 226 | a branch. */ | |
| 227 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 228 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 229 | |
| deb0e272 AM |
230 | /* Instructions used by the save and restore reg functions. */ |
| 231 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 232 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 233 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 234 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
235 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 236 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
237 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 238 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 239 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 240 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
241 | #define BLR 0x4e800020 /* blr */ |
| 242 | ||
| 41bd81ab AM |
243 | /* Since .opd is an array of descriptors and each entry will end up |
| 244 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 245 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 246 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
247 | #ifndef NO_OPD_RELOCS |
| 248 | #define NO_OPD_RELOCS 0 | |
| 249 | #endif | |
| 810d4e75 | 250 | |
| a4b6fadd AM |
251 | #ifndef ARRAY_SIZE |
| 252 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 253 | #endif | |
| 254 | ||
| 810d4e75 AM |
255 | static inline int |
| 256 | abiversion (bfd *abfd) | |
| 257 | { | |
| 258 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 259 | } | |
| 260 | ||
| 261 | static inline void | |
| 262 | set_abiversion (bfd *abfd, int ver) | |
| 263 | { | |
| 264 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 265 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 266 | } | |
| 5bd4f169 | 267 | \f |
| f5e87a1d | 268 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 269 | |
| 5bd4f169 | 270 | /* Relocation HOWTO's. */ |
| 04c9666a | 271 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 | 272 | |
| f3185997 NC |
273 | static reloc_howto_type ppc64_elf_howto_raw[] = |
| 274 | { | |
| 5bd4f169 AM |
275 | /* This reloc does nothing. */ |
| 276 | HOWTO (R_PPC64_NONE, /* type */ | |
| 277 | 0, /* rightshift */ | |
| 6346d5ca AM |
278 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 279 | 0, /* bitsize */ | |
| b34976b6 | 280 | FALSE, /* pc_relative */ |
| 5bd4f169 | 281 | 0, /* bitpos */ |
| f5e87a1d | 282 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
283 | bfd_elf_generic_reloc, /* special_function */ |
| 284 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 285 | FALSE, /* partial_inplace */ |
| d006db6c | 286 | 0, /* src_mask */ |
| 5bd4f169 | 287 | 0, /* dst_mask */ |
| b34976b6 | 288 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
289 | |
| 290 | /* A standard 32 bit relocation. */ | |
| 291 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 292 | 0, /* rightshift */ | |
| 293 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 294 | 32, /* bitsize */ | |
| b34976b6 | 295 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
296 | 0, /* bitpos */ |
| 297 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 298 | bfd_elf_generic_reloc, /* special_function */ | |
| 299 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 300 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
301 | 0, /* src_mask */ |
| 302 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 303 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
304 | |
| 305 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 306 | FIXME: we don't check that, we just clear them. */ | |
| 307 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 308 | 0, /* rightshift */ | |
| 309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 310 | 26, /* bitsize */ | |
| b34976b6 | 311 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
312 | 0, /* bitpos */ |
| 313 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 314 | bfd_elf_generic_reloc, /* special_function */ | |
| 315 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 316 | FALSE, /* partial_inplace */ |
| d006db6c | 317 | 0, /* src_mask */ |
| f5e87a1d | 318 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 319 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
320 | |
| 321 | /* A standard 16 bit relocation. */ | |
| 322 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 323 | 0, /* rightshift */ | |
| 324 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 325 | 16, /* bitsize */ | |
| b34976b6 | 326 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
327 | 0, /* bitpos */ |
| 328 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 329 | bfd_elf_generic_reloc, /* special_function */ | |
| 330 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 331 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
332 | 0, /* src_mask */ |
| 333 | 0xffff, /* dst_mask */ | |
| b34976b6 | 334 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
335 | |
| 336 | /* A 16 bit relocation without overflow. */ | |
| 337 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 338 | 0, /* rightshift */ | |
| 339 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 340 | 16, /* bitsize */ | |
| b34976b6 | 341 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
342 | 0, /* bitpos */ |
| 343 | complain_overflow_dont,/* complain_on_overflow */ | |
| 344 | bfd_elf_generic_reloc, /* special_function */ | |
| 345 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 346 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
347 | 0, /* src_mask */ |
| 348 | 0xffff, /* dst_mask */ | |
| b34976b6 | 349 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
350 | |
| 351 | /* Bits 16-31 of an address. */ | |
| 352 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 353 | 16, /* rightshift */ | |
| 354 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 355 | 16, /* bitsize */ | |
| b34976b6 | 356 | FALSE, /* pc_relative */ |
| 5bd4f169 | 357 | 0, /* bitpos */ |
| f9c6b907 | 358 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
359 | bfd_elf_generic_reloc, /* special_function */ |
| 360 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 361 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
362 | 0, /* src_mask */ |
| 363 | 0xffff, /* dst_mask */ | |
| b34976b6 | 364 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
365 | |
| 366 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 367 | bits, treated as a signed number, is negative. */ | |
| 368 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 369 | 16, /* rightshift */ | |
| 370 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 371 | 16, /* bitsize */ | |
| b34976b6 | 372 | FALSE, /* pc_relative */ |
| 5bd4f169 | 373 | 0, /* bitpos */ |
| f9c6b907 | 374 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 375 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 376 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 377 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
378 | 0, /* src_mask */ |
| 379 | 0xffff, /* dst_mask */ | |
| b34976b6 | 380 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
381 | |
| 382 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 383 | FIXME: we don't check that, we just clear them. */ | |
| 384 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 385 | 0, /* rightshift */ | |
| 386 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 387 | 16, /* bitsize */ | |
| b34976b6 | 388 | FALSE, /* pc_relative */ |
| 5bd4f169 | 389 | 0, /* bitpos */ |
| b80eed39 | 390 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 391 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 392 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 393 | FALSE, /* partial_inplace */ |
| d006db6c | 394 | 0, /* src_mask */ |
| f5e87a1d | 395 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 396 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
397 | |
| 398 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 399 | indicate that the branch is expected to be taken. The lower two | |
| 400 | bits must be zero. */ | |
| 401 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 402 | 0, /* rightshift */ | |
| 403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 404 | 16, /* bitsize */ | |
| b34976b6 | 405 | FALSE, /* pc_relative */ |
| 5bd4f169 | 406 | 0, /* bitpos */ |
| b80eed39 | 407 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 408 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 409 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 410 | FALSE, /* partial_inplace */ |
| d006db6c | 411 | 0, /* src_mask */ |
| f5e87a1d | 412 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 413 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
414 | |
| 415 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 416 | indicate that the branch is not expected to be taken. The lower | |
| 417 | two bits must be zero. */ | |
| 418 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 419 | 0, /* rightshift */ | |
| 420 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 421 | 16, /* bitsize */ | |
| b34976b6 | 422 | FALSE, /* pc_relative */ |
| 5bd4f169 | 423 | 0, /* bitpos */ |
| b80eed39 | 424 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 425 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 426 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 427 | FALSE, /* partial_inplace */ |
| d006db6c | 428 | 0, /* src_mask */ |
| f5e87a1d | 429 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 430 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
431 | |
| 432 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 433 | HOWTO (R_PPC64_REL24, /* type */ | |
| 434 | 0, /* rightshift */ | |
| 435 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 436 | 26, /* bitsize */ | |
| b34976b6 | 437 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
438 | 0, /* bitpos */ |
| 439 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 440 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 441 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 442 | FALSE, /* partial_inplace */ |
| d006db6c | 443 | 0, /* src_mask */ |
| f5e87a1d | 444 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 445 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
446 | |
| 447 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 448 | HOWTO (R_PPC64_REL14, /* type */ | |
| 449 | 0, /* rightshift */ | |
| 450 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 451 | 16, /* bitsize */ | |
| b34976b6 | 452 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
453 | 0, /* bitpos */ |
| 454 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 455 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 456 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 457 | FALSE, /* partial_inplace */ |
| d006db6c | 458 | 0, /* src_mask */ |
| f5e87a1d | 459 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 460 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
461 | |
| 462 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 463 | the branch is expected to be taken. The lower two bits must be | |
| 464 | zero. */ | |
| 465 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 466 | 0, /* rightshift */ | |
| 467 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 468 | 16, /* bitsize */ | |
| b34976b6 | 469 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
470 | 0, /* bitpos */ |
| 471 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 472 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 473 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 474 | FALSE, /* partial_inplace */ |
| d006db6c | 475 | 0, /* src_mask */ |
| f5e87a1d | 476 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 477 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
478 | |
| 479 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 480 | the branch is not expected to be taken. The lower two bits must | |
| 481 | be zero. */ | |
| 482 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 483 | 0, /* rightshift */ | |
| 484 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 485 | 16, /* bitsize */ | |
| b34976b6 | 486 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
487 | 0, /* bitpos */ |
| 488 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 489 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 490 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 491 | FALSE, /* partial_inplace */ |
| d006db6c | 492 | 0, /* src_mask */ |
| f5e87a1d | 493 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 494 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
495 | |
| 496 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 497 | symbol. */ | |
| 498 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 499 | 0, /* rightshift */ | |
| 500 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 501 | 16, /* bitsize */ | |
| b34976b6 | 502 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
503 | 0, /* bitpos */ |
| 504 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 505 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 506 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 507 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
508 | 0, /* src_mask */ |
| 509 | 0xffff, /* dst_mask */ | |
| b34976b6 | 510 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
511 | |
| 512 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 513 | the symbol. */ | |
| 514 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 515 | 0, /* rightshift */ | |
| 516 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 517 | 16, /* bitsize */ | |
| b34976b6 | 518 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
519 | 0, /* bitpos */ |
| 520 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 521 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 522 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 523 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
524 | 0, /* src_mask */ |
| 525 | 0xffff, /* dst_mask */ | |
| b34976b6 | 526 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
527 | |
| 528 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 529 | the symbol. */ | |
| 530 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 531 | 16, /* rightshift */ | |
| 532 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 533 | 16, /* bitsize */ | |
| b34976b6 | 534 | FALSE, /* pc_relative */ |
| 5bd4f169 | 535 | 0, /* bitpos */ |
| f9c6b907 | 536 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 537 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 538 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 539 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
540 | 0, /* src_mask */ |
| 541 | 0xffff, /* dst_mask */ | |
| b34976b6 | 542 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
543 | |
| 544 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 545 | the symbol. */ | |
| 546 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 547 | 16, /* rightshift */ | |
| 548 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 549 | 16, /* bitsize */ | |
| b34976b6 | 550 | FALSE, /* pc_relative */ |
| 5bd4f169 | 551 | 0, /* bitpos */ |
| f9c6b907 | 552 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 553 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 554 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 555 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
556 | 0, /* src_mask */ |
| 557 | 0xffff, /* dst_mask */ | |
| b34976b6 | 558 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
559 | |
| 560 | /* This is used only by the dynamic linker. The symbol should exist | |
| 561 | both in the object being run and in some shared library. The | |
| 562 | dynamic linker copies the data addressed by the symbol from the | |
| 563 | shared library into the object, because the object being | |
| 564 | run has to have the data at some particular address. */ | |
| 565 | HOWTO (R_PPC64_COPY, /* type */ | |
| 566 | 0, /* rightshift */ | |
| f5e87a1d AM |
567 | 0, /* this one is variable size */ |
| 568 | 0, /* bitsize */ | |
| b34976b6 | 569 | FALSE, /* pc_relative */ |
| 5bd4f169 | 570 | 0, /* bitpos */ |
| f5e87a1d AM |
571 | complain_overflow_dont, /* complain_on_overflow */ |
| 572 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 573 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 574 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
575 | 0, /* src_mask */ |
| 576 | 0, /* dst_mask */ | |
| b34976b6 | 577 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
578 | |
| 579 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 580 | entries. */ | |
| 581 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 582 | 0, /* rightshift */ | |
| 583 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 584 | 64, /* bitsize */ | |
| b34976b6 | 585 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
586 | 0, /* bitpos */ |
| 587 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 588 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 589 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 590 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 591 | 0, /* src_mask */ |
| f5e87a1d | 592 | ONES (64), /* dst_mask */ |
| b34976b6 | 593 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
594 | |
| 595 | /* Created by the link editor. Marks a procedure linkage table | |
| 596 | entry for a symbol. */ | |
| 597 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 598 | 0, /* rightshift */ | |
| 599 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 600 | 0, /* bitsize */ | |
| b34976b6 | 601 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
602 | 0, /* bitpos */ |
| 603 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 604 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 605 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 606 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
607 | 0, /* src_mask */ |
| 608 | 0, /* dst_mask */ | |
| b34976b6 | 609 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
610 | |
| 611 | /* Used only by the dynamic linker. When the object is run, this | |
| 612 | doubleword64 is set to the load address of the object, plus the | |
| 613 | addend. */ | |
| 614 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 615 | 0, /* rightshift */ | |
| 616 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 617 | 64, /* bitsize */ | |
| b34976b6 | 618 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
619 | 0, /* bitpos */ |
| 620 | complain_overflow_dont, /* complain_on_overflow */ | |
| 621 | bfd_elf_generic_reloc, /* special_function */ | |
| 622 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 623 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 624 | 0, /* src_mask */ |
| f5e87a1d | 625 | ONES (64), /* dst_mask */ |
| b34976b6 | 626 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
627 | |
| 628 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 629 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 630 | 0, /* rightshift */ | |
| 631 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 632 | 32, /* bitsize */ | |
| b34976b6 | 633 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
634 | 0, /* bitpos */ |
| 635 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 636 | bfd_elf_generic_reloc, /* special_function */ | |
| 637 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 638 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
639 | 0, /* src_mask */ |
| 640 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 641 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
642 | |
| 643 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 644 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 645 | 0, /* rightshift */ | |
| 646 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 647 | 16, /* bitsize */ | |
| b34976b6 | 648 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
649 | 0, /* bitpos */ |
| 650 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 651 | bfd_elf_generic_reloc, /* special_function */ | |
| 652 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 653 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
654 | 0, /* src_mask */ |
| 655 | 0xffff, /* dst_mask */ | |
| b34976b6 | 656 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
657 | |
| 658 | /* 32-bit PC relative. */ | |
| 659 | HOWTO (R_PPC64_REL32, /* type */ | |
| 660 | 0, /* rightshift */ | |
| 661 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 662 | 32, /* bitsize */ | |
| b34976b6 | 663 | TRUE, /* pc_relative */ |
| 5bd4f169 | 664 | 0, /* bitpos */ |
| 5bd4f169 AM |
665 | complain_overflow_signed, /* complain_on_overflow */ |
| 666 | bfd_elf_generic_reloc, /* special_function */ | |
| 667 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 668 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
669 | 0, /* src_mask */ |
| 670 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 671 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 672 | |
| 10ed1bba | 673 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
674 | HOWTO (R_PPC64_PLT32, /* type */ |
| 675 | 0, /* rightshift */ | |
| 676 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 677 | 32, /* bitsize */ | |
| b34976b6 | 678 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
679 | 0, /* bitpos */ |
| 680 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 681 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 682 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 683 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 684 | 0, /* src_mask */ |
| f5e87a1d | 685 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 686 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
687 | |
| 688 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 689 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 690 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 691 | 0, /* rightshift */ | |
| 692 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 693 | 32, /* bitsize */ | |
| b34976b6 | 694 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
695 | 0, /* bitpos */ |
| 696 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 697 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 698 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 699 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 700 | 0, /* src_mask */ |
| f5e87a1d | 701 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 702 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
703 | |
| 704 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 705 | the symbol. */ | |
| 706 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 707 | 0, /* rightshift */ | |
| 708 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 709 | 16, /* bitsize */ | |
| b34976b6 | 710 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
711 | 0, /* bitpos */ |
| 712 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 713 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 714 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 715 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
716 | 0, /* src_mask */ |
| 717 | 0xffff, /* dst_mask */ | |
| b34976b6 | 718 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
719 | |
| 720 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 721 | the symbol. */ | |
| 722 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 723 | 16, /* rightshift */ | |
| 724 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 725 | 16, /* bitsize */ | |
| b34976b6 | 726 | FALSE, /* pc_relative */ |
| 5bd4f169 | 727 | 0, /* bitpos */ |
| f9c6b907 | 728 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 729 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 730 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 731 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
732 | 0, /* src_mask */ |
| 733 | 0xffff, /* dst_mask */ | |
| b34976b6 | 734 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
735 | |
| 736 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 737 | the symbol. */ | |
| 738 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 739 | 16, /* rightshift */ | |
| 740 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 741 | 16, /* bitsize */ | |
| b34976b6 | 742 | FALSE, /* pc_relative */ |
| 5bd4f169 | 743 | 0, /* bitpos */ |
| f9c6b907 | 744 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 745 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 746 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 747 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
748 | 0, /* src_mask */ |
| 749 | 0xffff, /* dst_mask */ | |
| b34976b6 | 750 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 751 | |
| c061c2d8 | 752 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
753 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 754 | 0, /* rightshift */ | |
| c061c2d8 AM |
755 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 756 | 16, /* bitsize */ | |
| b34976b6 | 757 | FALSE, /* pc_relative */ |
| 5bd4f169 | 758 | 0, /* bitpos */ |
| b80eed39 | 759 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 760 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 761 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 762 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 763 | 0, /* src_mask */ |
| c061c2d8 | 764 | 0xffff, /* dst_mask */ |
| b34976b6 | 765 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 766 | |
| c061c2d8 | 767 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
768 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 769 | 0, /* rightshift */ | |
| 770 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 771 | 16, /* bitsize */ | |
| b34976b6 | 772 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
773 | 0, /* bitpos */ |
| 774 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 775 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 776 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 777 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
778 | 0, /* src_mask */ |
| 779 | 0xffff, /* dst_mask */ | |
| b34976b6 | 780 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
781 | |
| 782 | /* 16-bit upper half section relative relocation. */ | |
| 783 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 784 | 16, /* rightshift */ | |
| 785 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 786 | 16, /* bitsize */ | |
| b34976b6 | 787 | FALSE, /* pc_relative */ |
| 5bd4f169 | 788 | 0, /* bitpos */ |
| f9c6b907 | 789 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 790 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 791 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 792 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
793 | 0, /* src_mask */ |
| 794 | 0xffff, /* dst_mask */ | |
| b34976b6 | 795 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
796 | |
| 797 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 798 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 799 | 16, /* rightshift */ | |
| 800 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 801 | 16, /* bitsize */ | |
| b34976b6 | 802 | FALSE, /* pc_relative */ |
| 5bd4f169 | 803 | 0, /* bitpos */ |
| f9c6b907 | 804 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 805 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 806 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 807 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
808 | 0, /* src_mask */ |
| 809 | 0xffff, /* dst_mask */ | |
| b34976b6 | 810 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 811 | |
| 04c9666a AM |
812 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 813 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
814 | 2, /* rightshift */ |
| 815 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 816 | 30, /* bitsize */ | |
| b34976b6 | 817 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
818 | 0, /* bitpos */ |
| 819 | complain_overflow_dont, /* complain_on_overflow */ | |
| 820 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 821 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 822 | FALSE, /* partial_inplace */ |
| d006db6c | 823 | 0, /* src_mask */ |
| 5bd4f169 | 824 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 825 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
826 | |
| 827 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 828 | ||
| 829 | /* A standard 64-bit relocation. */ | |
| 830 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 831 | 0, /* rightshift */ | |
| 832 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 833 | 64, /* bitsize */ | |
| b34976b6 | 834 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
835 | 0, /* bitpos */ |
| 836 | complain_overflow_dont, /* complain_on_overflow */ | |
| 837 | bfd_elf_generic_reloc, /* special_function */ | |
| 838 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 839 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 840 | 0, /* src_mask */ |
| f5e87a1d | 841 | ONES (64), /* dst_mask */ |
| b34976b6 | 842 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
843 | |
| 844 | /* The bits 32-47 of an address. */ | |
| 845 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 846 | 32, /* rightshift */ | |
| 847 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 848 | 16, /* bitsize */ | |
| b34976b6 | 849 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
850 | 0, /* bitpos */ |
| 851 | complain_overflow_dont, /* complain_on_overflow */ | |
| 852 | bfd_elf_generic_reloc, /* special_function */ | |
| 853 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 854 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
855 | 0, /* src_mask */ |
| 856 | 0xffff, /* dst_mask */ | |
| b34976b6 | 857 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
858 | |
| 859 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 860 | 16 bits, treated as a signed number, is negative. */ | |
| 861 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 862 | 32, /* rightshift */ | |
| 863 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 864 | 16, /* bitsize */ | |
| b34976b6 | 865 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
866 | 0, /* bitpos */ |
| 867 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 868 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 869 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 870 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
871 | 0, /* src_mask */ |
| 872 | 0xffff, /* dst_mask */ | |
| b34976b6 | 873 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
874 | |
| 875 | /* The bits 48-63 of an address. */ | |
| 876 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 877 | 48, /* rightshift */ | |
| 878 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 879 | 16, /* bitsize */ | |
| b34976b6 | 880 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
881 | 0, /* bitpos */ |
| 882 | complain_overflow_dont, /* complain_on_overflow */ | |
| 883 | bfd_elf_generic_reloc, /* special_function */ | |
| 884 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 885 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
886 | 0, /* src_mask */ |
| 887 | 0xffff, /* dst_mask */ | |
| b34976b6 | 888 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
889 | |
| 890 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 891 | 16 bits, treated as a signed number, is negative. */ | |
| 892 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 893 | 48, /* rightshift */ | |
| 894 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 895 | 16, /* bitsize */ | |
| b34976b6 | 896 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
897 | 0, /* bitpos */ |
| 898 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 899 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 900 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 901 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
902 | 0, /* src_mask */ |
| 903 | 0xffff, /* dst_mask */ | |
| b34976b6 | 904 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
905 | |
| 906 | /* Like ADDR64, but may be unaligned. */ | |
| 907 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 908 | 0, /* rightshift */ | |
| 909 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 910 | 64, /* bitsize */ | |
| b34976b6 | 911 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
912 | 0, /* bitpos */ |
| 913 | complain_overflow_dont, /* complain_on_overflow */ | |
| 914 | bfd_elf_generic_reloc, /* special_function */ | |
| 915 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 916 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 917 | 0, /* src_mask */ |
| f5e87a1d | 918 | ONES (64), /* dst_mask */ |
| b34976b6 | 919 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
920 | |
| 921 | /* 64-bit relative relocation. */ | |
| 922 | HOWTO (R_PPC64_REL64, /* type */ | |
| 923 | 0, /* rightshift */ | |
| 924 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 925 | 64, /* bitsize */ | |
| b34976b6 | 926 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
927 | 0, /* bitpos */ |
| 928 | complain_overflow_dont, /* complain_on_overflow */ | |
| 929 | bfd_elf_generic_reloc, /* special_function */ | |
| 930 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 931 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 932 | 0, /* src_mask */ |
| f5e87a1d | 933 | ONES (64), /* dst_mask */ |
| b34976b6 | 934 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 935 | |
| cedb70c5 | 936 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
937 | HOWTO (R_PPC64_PLT64, /* type */ |
| 938 | 0, /* rightshift */ | |
| 939 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 940 | 64, /* bitsize */ | |
| b34976b6 | 941 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
942 | 0, /* bitpos */ |
| 943 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 944 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 945 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 946 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 947 | 0, /* src_mask */ |
| f5e87a1d | 948 | ONES (64), /* dst_mask */ |
| b34976b6 | 949 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
950 | |
| 951 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 952 | table. */ | |
| 953 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 954 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 955 | 0, /* rightshift */ | |
| 956 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 957 | 64, /* bitsize */ | |
| b34976b6 | 958 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
959 | 0, /* bitpos */ |
| 960 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 961 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 962 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 963 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 964 | 0, /* src_mask */ |
| f5e87a1d | 965 | ONES (64), /* dst_mask */ |
| b34976b6 | 966 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
967 | |
| 968 | /* 16 bit TOC-relative relocation. */ | |
| 969 | ||
| 970 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 971 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 972 | 0, /* rightshift */ | |
| 973 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 974 | 16, /* bitsize */ | |
| b34976b6 | 975 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
976 | 0, /* bitpos */ |
| 977 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 978 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 979 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 980 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
981 | 0, /* src_mask */ |
| 982 | 0xffff, /* dst_mask */ | |
| b34976b6 | 983 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
984 | |
| 985 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 986 | ||
| 987 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 988 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 989 | 0, /* rightshift */ | |
| 990 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 991 | 16, /* bitsize */ | |
| b34976b6 | 992 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
993 | 0, /* bitpos */ |
| 994 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 995 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 996 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 997 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
998 | 0, /* src_mask */ |
| 999 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1000 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1001 | |
| 1002 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1003 | ||
| 1004 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1005 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1006 | 16, /* rightshift */ | |
| 1007 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1008 | 16, /* bitsize */ | |
| b34976b6 | 1009 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1010 | 0, /* bitpos */ |
| f9c6b907 | 1011 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1012 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1013 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1014 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1015 | 0, /* src_mask */ |
| 1016 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1017 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1018 | |
| 1019 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1020 | contents of the low 16 bits, treated as a signed number, is | |
| 1021 | negative. */ | |
| 1022 | ||
| 1023 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1024 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1025 | 16, /* rightshift */ | |
| 1026 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1027 | 16, /* bitsize */ | |
| b34976b6 | 1028 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1029 | 0, /* bitpos */ |
| f9c6b907 | 1030 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1031 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1032 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1033 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1034 | 0, /* src_mask */ |
| 1035 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1036 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1037 | |
| 1038 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1039 | ||
| 1040 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1041 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1042 | 0, /* rightshift */ | |
| 1043 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1044 | 64, /* bitsize */ | |
| b34976b6 | 1045 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1046 | 0, /* bitpos */ |
| b80eed39 | 1047 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1048 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1049 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1050 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1051 | 0, /* src_mask */ |
| f5e87a1d | 1052 | ONES (64), /* dst_mask */ |
| b34976b6 | 1053 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1054 | |
| 1055 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1056 | value to relocate may (!) refer to a PLT entry which the link | |
| 1057 | editor (a) may replace with the symbol value. If the link editor | |
| 1058 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1059 | entry and store the address to the new PLT entry in the GOT. | |
| 1060 | This permits lazy resolution of function symbols at run time. | |
| 1061 | The link editor may also skip all of this and just (c) emit a | |
| 1062 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1063 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1064 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1065 | 0, /* rightshift */ | |
| 1066 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1067 | 16, /* bitsize */ | |
| b34976b6 | 1068 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1069 | 0, /* bitpos */ |
| 1070 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1071 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1072 | "R_PPC64_PLTGOT16", /* name */ |
| 1073 | FALSE, /* partial_inplace */ | |
| 1074 | 0, /* src_mask */ | |
| 1075 | 0xffff, /* dst_mask */ | |
| 1076 | FALSE), /* pcrel_offset */ | |
| 1077 | ||
| 1078 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1079 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1080 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1081 | 0, /* rightshift */ | |
| 1082 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1083 | 16, /* bitsize */ | |
| 1084 | FALSE, /* pc_relative */ | |
| 1085 | 0, /* bitpos */ | |
| 1086 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1087 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1088 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1089 | FALSE, /* partial_inplace */ | |
| 1090 | 0, /* src_mask */ | |
| 1091 | 0xffff, /* dst_mask */ | |
| 1092 | FALSE), /* pcrel_offset */ | |
| 1093 | ||
| 1094 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1095 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1096 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1097 | 16, /* rightshift */ | |
| 1098 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1099 | 16, /* bitsize */ | |
| 1100 | FALSE, /* pc_relative */ | |
| 1101 | 0, /* bitpos */ | |
| f9c6b907 | 1102 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1103 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1104 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1105 | FALSE, /* partial_inplace */ | |
| 1106 | 0, /* src_mask */ | |
| 1107 | 0xffff, /* dst_mask */ | |
| 1108 | FALSE), /* pcrel_offset */ | |
| 1109 | ||
| 1110 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1111 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1112 | is negative. */ | |
| 1113 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1114 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1115 | 16, /* rightshift */ | |
| 1116 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1117 | 16, /* bitsize */ | |
| 1118 | FALSE, /* pc_relative */ | |
| 1119 | 0, /* bitpos */ | |
| f9c6b907 | 1120 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1121 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1122 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1123 | FALSE, /* partial_inplace */ | |
| 1124 | 0, /* src_mask */ | |
| 1125 | 0xffff, /* dst_mask */ | |
| 1126 | FALSE), /* pcrel_offset */ | |
| 1127 | ||
| 1128 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1129 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1130 | 0, /* rightshift */ | |
| 1131 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1132 | 16, /* bitsize */ | |
| 1133 | FALSE, /* pc_relative */ | |
| 1134 | 0, /* bitpos */ | |
| b80eed39 | 1135 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1136 | bfd_elf_generic_reloc, /* special_function */ |
| 1137 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1138 | FALSE, /* partial_inplace */ | |
| 1139 | 0, /* src_mask */ | |
| 1140 | 0xfffc, /* dst_mask */ | |
| 1141 | FALSE), /* pcrel_offset */ | |
| 1142 | ||
| 1143 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1144 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1145 | 0, /* rightshift */ | |
| 1146 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1147 | 16, /* bitsize */ | |
| 1148 | FALSE, /* pc_relative */ | |
| 1149 | 0, /* bitpos */ | |
| 1150 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1151 | bfd_elf_generic_reloc, /* special_function */ | |
| 1152 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1153 | FALSE, /* partial_inplace */ | |
| 1154 | 0, /* src_mask */ | |
| 1155 | 0xfffc, /* dst_mask */ | |
| 1156 | FALSE), /* pcrel_offset */ | |
| 1157 | ||
| 1158 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1159 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1160 | 0, /* rightshift */ | |
| 1161 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1162 | 16, /* bitsize */ | |
| 1163 | FALSE, /* pc_relative */ | |
| 1164 | 0, /* bitpos */ | |
| 1165 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1166 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1167 | "R_PPC64_GOT16_DS", /* name */ | |
| 1168 | FALSE, /* partial_inplace */ | |
| 1169 | 0, /* src_mask */ | |
| 1170 | 0xfffc, /* dst_mask */ | |
| 1171 | FALSE), /* pcrel_offset */ | |
| 1172 | ||
| 1173 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1174 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1175 | 0, /* rightshift */ | |
| 1176 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1177 | 16, /* bitsize */ | |
| 1178 | FALSE, /* pc_relative */ | |
| 1179 | 0, /* bitpos */ | |
| 1180 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1181 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1182 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1183 | FALSE, /* partial_inplace */ | |
| 1184 | 0, /* src_mask */ | |
| 1185 | 0xfffc, /* dst_mask */ | |
| 1186 | FALSE), /* pcrel_offset */ | |
| 1187 | ||
| 1188 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1189 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1190 | 0, /* rightshift */ | |
| 1191 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1192 | 16, /* bitsize */ | |
| 1193 | FALSE, /* pc_relative */ | |
| 1194 | 0, /* bitpos */ | |
| 1195 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1196 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1197 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1198 | FALSE, /* partial_inplace */ | |
| 1199 | 0, /* src_mask */ | |
| 1200 | 0xfffc, /* dst_mask */ | |
| 1201 | FALSE), /* pcrel_offset */ | |
| 1202 | ||
| 1203 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1204 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1205 | 0, /* rightshift */ | |
| 1206 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1207 | 16, /* bitsize */ | |
| 1208 | FALSE, /* pc_relative */ | |
| 1209 | 0, /* bitpos */ | |
| b80eed39 | 1210 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1211 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1212 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1213 | FALSE, /* partial_inplace */ | |
| 1214 | 0, /* src_mask */ | |
| 1215 | 0xfffc, /* dst_mask */ | |
| 1216 | FALSE), /* pcrel_offset */ | |
| 1217 | ||
| 1218 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1219 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1220 | 0, /* rightshift */ | |
| 1221 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1222 | 16, /* bitsize */ | |
| 1223 | FALSE, /* pc_relative */ | |
| 1224 | 0, /* bitpos */ | |
| 1225 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1226 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1227 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1228 | FALSE, /* partial_inplace */ | |
| 1229 | 0, /* src_mask */ | |
| 1230 | 0xfffc, /* dst_mask */ | |
| 1231 | FALSE), /* pcrel_offset */ | |
| 1232 | ||
| 1233 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1234 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1235 | 0, /* rightshift */ | |
| 1236 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1237 | 16, /* bitsize */ | |
| 1238 | FALSE, /* pc_relative */ | |
| 1239 | 0, /* bitpos */ | |
| 1240 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1241 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1242 | "R_PPC64_TOC16_DS", /* name */ | |
| 1243 | FALSE, /* partial_inplace */ | |
| 1244 | 0, /* src_mask */ | |
| 1245 | 0xfffc, /* dst_mask */ | |
| 1246 | FALSE), /* pcrel_offset */ | |
| 1247 | ||
| 1248 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1249 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1250 | 0, /* rightshift */ | |
| 1251 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1252 | 16, /* bitsize */ | |
| 1253 | FALSE, /* pc_relative */ | |
| 1254 | 0, /* bitpos */ | |
| 1255 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1256 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1257 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1258 | FALSE, /* partial_inplace */ | |
| 1259 | 0, /* src_mask */ | |
| 1260 | 0xfffc, /* dst_mask */ | |
| 1261 | FALSE), /* pcrel_offset */ | |
| 1262 | ||
| 1263 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1264 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1265 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1266 | 0, /* rightshift */ |
| 1267 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1268 | 16, /* bitsize */ | |
| 1269 | FALSE, /* pc_relative */ | |
| 1270 | 0, /* bitpos */ | |
| 1271 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1272 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1273 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1274 | FALSE, /* partial_inplace */ | |
| 1275 | 0, /* src_mask */ | |
| 1276 | 0xfffc, /* dst_mask */ | |
| 1277 | FALSE), /* pcrel_offset */ | |
| 1278 | ||
| 1279 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1280 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1281 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1282 | 0, /* rightshift */ | |
| 1283 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1284 | 16, /* bitsize */ | |
| 1285 | FALSE, /* pc_relative */ | |
| 1286 | 0, /* bitpos */ | |
| 1287 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1288 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1289 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1290 | FALSE, /* partial_inplace */ | |
| 1291 | 0, /* src_mask */ | |
| 1292 | 0xfffc, /* dst_mask */ | |
| 1293 | FALSE), /* pcrel_offset */ | |
| 1294 | ||
| 727fc41e | 1295 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1296 | HOWTO (R_PPC64_TLS, |
| 1297 | 0, /* rightshift */ | |
| 1298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1299 | 32, /* bitsize */ | |
| 1300 | FALSE, /* pc_relative */ | |
| 1301 | 0, /* bitpos */ | |
| 1302 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1303 | bfd_elf_generic_reloc, /* special_function */ | |
| 1304 | "R_PPC64_TLS", /* name */ | |
| 1305 | FALSE, /* partial_inplace */ | |
| 1306 | 0, /* src_mask */ | |
| 1307 | 0, /* dst_mask */ | |
| 1308 | FALSE), /* pcrel_offset */ | |
| 1309 | ||
| 727fc41e AM |
1310 | HOWTO (R_PPC64_TLSGD, |
| 1311 | 0, /* rightshift */ | |
| 1312 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1313 | 32, /* bitsize */ | |
| 1314 | FALSE, /* pc_relative */ | |
| 1315 | 0, /* bitpos */ | |
| 1316 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1317 | bfd_elf_generic_reloc, /* special_function */ | |
| 1318 | "R_PPC64_TLSGD", /* name */ | |
| 1319 | FALSE, /* partial_inplace */ | |
| 1320 | 0, /* src_mask */ | |
| 1321 | 0, /* dst_mask */ | |
| 1322 | FALSE), /* pcrel_offset */ | |
| 1323 | ||
| 1324 | HOWTO (R_PPC64_TLSLD, | |
| 1325 | 0, /* rightshift */ | |
| 1326 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1327 | 32, /* bitsize */ | |
| 1328 | FALSE, /* pc_relative */ | |
| 1329 | 0, /* bitpos */ | |
| 1330 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1331 | bfd_elf_generic_reloc, /* special_function */ | |
| 1332 | "R_PPC64_TLSLD", /* name */ | |
| 1333 | FALSE, /* partial_inplace */ | |
| 1334 | 0, /* src_mask */ | |
| 1335 | 0, /* dst_mask */ | |
| 1336 | FALSE), /* pcrel_offset */ | |
| 1337 | ||
| 3b421ab3 AM |
1338 | HOWTO (R_PPC64_TOCSAVE, |
| 1339 | 0, /* rightshift */ | |
| 1340 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1341 | 32, /* bitsize */ | |
| 1342 | FALSE, /* pc_relative */ | |
| 1343 | 0, /* bitpos */ | |
| 1344 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1345 | bfd_elf_generic_reloc, /* special_function */ | |
| 1346 | "R_PPC64_TOCSAVE", /* name */ | |
| 1347 | FALSE, /* partial_inplace */ | |
| 1348 | 0, /* src_mask */ | |
| 1349 | 0, /* dst_mask */ | |
| 1350 | FALSE), /* pcrel_offset */ | |
| 1351 | ||
| 411e1bfb AM |
1352 | /* Computes the load module index of the load module that contains the |
| 1353 | definition of its TLS sym. */ | |
| 1354 | HOWTO (R_PPC64_DTPMOD64, | |
| 1355 | 0, /* rightshift */ | |
| 1356 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1357 | 64, /* bitsize */ | |
| 1358 | FALSE, /* pc_relative */ | |
| 1359 | 0, /* bitpos */ | |
| 1360 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1361 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1362 | "R_PPC64_DTPMOD64", /* name */ | |
| 1363 | FALSE, /* partial_inplace */ | |
| 1364 | 0, /* src_mask */ | |
| 1365 | ONES (64), /* dst_mask */ | |
| 1366 | FALSE), /* pcrel_offset */ | |
| 1367 | ||
| 1368 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1369 | of sym+add and the base address of the thread-local storage block that | |
| 1370 | contains the definition of sym, minus 0x8000. */ | |
| 1371 | HOWTO (R_PPC64_DTPREL64, | |
| 1372 | 0, /* rightshift */ | |
| 1373 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1374 | 64, /* bitsize */ | |
| 1375 | FALSE, /* pc_relative */ | |
| 1376 | 0, /* bitpos */ | |
| 1377 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1378 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1379 | "R_PPC64_DTPREL64", /* name */ | |
| 1380 | FALSE, /* partial_inplace */ | |
| 1381 | 0, /* src_mask */ | |
| 1382 | ONES (64), /* dst_mask */ | |
| 1383 | FALSE), /* pcrel_offset */ | |
| 1384 | ||
| 1385 | /* A 16 bit dtprel reloc. */ | |
| 1386 | HOWTO (R_PPC64_DTPREL16, | |
| 1387 | 0, /* rightshift */ | |
| 1388 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1389 | 16, /* bitsize */ | |
| 1390 | FALSE, /* pc_relative */ | |
| 1391 | 0, /* bitpos */ | |
| 1392 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1393 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1394 | "R_PPC64_DTPREL16", /* name */ | |
| 1395 | FALSE, /* partial_inplace */ | |
| 1396 | 0, /* src_mask */ | |
| 1397 | 0xffff, /* dst_mask */ | |
| 1398 | FALSE), /* pcrel_offset */ | |
| 1399 | ||
| 1400 | /* Like DTPREL16, but no overflow. */ | |
| 1401 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1402 | 0, /* rightshift */ | |
| 1403 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1404 | 16, /* bitsize */ | |
| 1405 | FALSE, /* pc_relative */ | |
| 1406 | 0, /* bitpos */ | |
| 1407 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1408 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1409 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1410 | FALSE, /* partial_inplace */ | |
| 1411 | 0, /* src_mask */ | |
| 1412 | 0xffff, /* dst_mask */ | |
| 1413 | FALSE), /* pcrel_offset */ | |
| 1414 | ||
| 1415 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1416 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1417 | 16, /* rightshift */ | |
| 1418 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1419 | 16, /* bitsize */ | |
| 1420 | FALSE, /* pc_relative */ | |
| 1421 | 0, /* bitpos */ | |
| f9c6b907 | 1422 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1423 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1424 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1425 | FALSE, /* partial_inplace */ | |
| 1426 | 0, /* src_mask */ | |
| 1427 | 0xffff, /* dst_mask */ | |
| 1428 | FALSE), /* pcrel_offset */ | |
| 1429 | ||
| 1430 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1431 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1432 | 16, /* rightshift */ | |
| 1433 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1434 | 16, /* bitsize */ | |
| 1435 | FALSE, /* pc_relative */ | |
| 1436 | 0, /* bitpos */ | |
| f9c6b907 | 1437 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1438 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1439 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1440 | FALSE, /* partial_inplace */ | |
| 1441 | 0, /* src_mask */ | |
| 1442 | 0xffff, /* dst_mask */ | |
| 1443 | FALSE), /* pcrel_offset */ | |
| 1444 | ||
| 1445 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1446 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1447 | 32, /* rightshift */ | |
| 1448 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1449 | 16, /* bitsize */ | |
| 1450 | FALSE, /* pc_relative */ | |
| 1451 | 0, /* bitpos */ | |
| 1452 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1453 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1454 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1455 | FALSE, /* partial_inplace */ | |
| 1456 | 0, /* src_mask */ | |
| 1457 | 0xffff, /* dst_mask */ | |
| 1458 | FALSE), /* pcrel_offset */ | |
| 1459 | ||
| 1460 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1461 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1462 | 32, /* rightshift */ | |
| 1463 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1464 | 16, /* bitsize */ | |
| 1465 | FALSE, /* pc_relative */ | |
| 1466 | 0, /* bitpos */ | |
| 1467 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1468 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1469 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1470 | FALSE, /* partial_inplace */ | |
| 1471 | 0, /* src_mask */ | |
| 1472 | 0xffff, /* dst_mask */ | |
| 1473 | FALSE), /* pcrel_offset */ | |
| 1474 | ||
| 1475 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1476 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1477 | 48, /* rightshift */ | |
| 1478 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1479 | 16, /* bitsize */ | |
| 1480 | FALSE, /* pc_relative */ | |
| 1481 | 0, /* bitpos */ | |
| 1482 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1483 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1484 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1485 | FALSE, /* partial_inplace */ | |
| 1486 | 0, /* src_mask */ | |
| 1487 | 0xffff, /* dst_mask */ | |
| 1488 | FALSE), /* pcrel_offset */ | |
| 1489 | ||
| 1490 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1491 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1492 | 48, /* rightshift */ | |
| 1493 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1494 | 16, /* bitsize */ | |
| 1495 | FALSE, /* pc_relative */ | |
| 1496 | 0, /* bitpos */ | |
| 1497 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1498 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1499 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1500 | FALSE, /* partial_inplace */ | |
| 1501 | 0, /* src_mask */ | |
| 1502 | 0xffff, /* dst_mask */ | |
| 1503 | FALSE), /* pcrel_offset */ | |
| 1504 | ||
| 1505 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1506 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1507 | 0, /* rightshift */ | |
| 1508 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1509 | 16, /* bitsize */ | |
| 1510 | FALSE, /* pc_relative */ | |
| 1511 | 0, /* bitpos */ | |
| 1512 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1513 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1514 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1515 | FALSE, /* partial_inplace */ | |
| 1516 | 0, /* src_mask */ | |
| 1517 | 0xfffc, /* dst_mask */ | |
| 1518 | FALSE), /* pcrel_offset */ | |
| 1519 | ||
| 1520 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1521 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1522 | 0, /* rightshift */ | |
| 1523 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1524 | 16, /* bitsize */ | |
| 1525 | FALSE, /* pc_relative */ | |
| 1526 | 0, /* bitpos */ | |
| 1527 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1528 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1529 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1530 | FALSE, /* partial_inplace */ | |
| 1531 | 0, /* src_mask */ | |
| 1532 | 0xfffc, /* dst_mask */ | |
| 1533 | FALSE), /* pcrel_offset */ | |
| 1534 | ||
| 1535 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1536 | sym+add and the value of the thread pointer (r13). */ | |
| 1537 | HOWTO (R_PPC64_TPREL64, | |
| 1538 | 0, /* rightshift */ | |
| 1539 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1540 | 64, /* bitsize */ | |
| 1541 | FALSE, /* pc_relative */ | |
| 1542 | 0, /* bitpos */ | |
| 1543 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1544 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1545 | "R_PPC64_TPREL64", /* name */ | |
| 1546 | FALSE, /* partial_inplace */ | |
| 1547 | 0, /* src_mask */ | |
| 1548 | ONES (64), /* dst_mask */ | |
| 1549 | FALSE), /* pcrel_offset */ | |
| 1550 | ||
| 1551 | /* A 16 bit tprel reloc. */ | |
| 1552 | HOWTO (R_PPC64_TPREL16, | |
| 1553 | 0, /* rightshift */ | |
| 1554 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1555 | 16, /* bitsize */ | |
| 1556 | FALSE, /* pc_relative */ | |
| 1557 | 0, /* bitpos */ | |
| 1558 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1559 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1560 | "R_PPC64_TPREL16", /* name */ | |
| 1561 | FALSE, /* partial_inplace */ | |
| 1562 | 0, /* src_mask */ | |
| 1563 | 0xffff, /* dst_mask */ | |
| 1564 | FALSE), /* pcrel_offset */ | |
| 1565 | ||
| 1566 | /* Like TPREL16, but no overflow. */ | |
| 1567 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1568 | 0, /* rightshift */ | |
| 1569 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1570 | 16, /* bitsize */ | |
| 1571 | FALSE, /* pc_relative */ | |
| 1572 | 0, /* bitpos */ | |
| 1573 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1574 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1575 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1576 | FALSE, /* partial_inplace */ | |
| 1577 | 0, /* src_mask */ | |
| 1578 | 0xffff, /* dst_mask */ | |
| 1579 | FALSE), /* pcrel_offset */ | |
| 1580 | ||
| 1581 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1582 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1583 | 16, /* rightshift */ | |
| 1584 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1585 | 16, /* bitsize */ | |
| 1586 | FALSE, /* pc_relative */ | |
| 1587 | 0, /* bitpos */ | |
| f9c6b907 | 1588 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1589 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1590 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1591 | FALSE, /* partial_inplace */ | |
| 1592 | 0, /* src_mask */ | |
| 1593 | 0xffff, /* dst_mask */ | |
| 1594 | FALSE), /* pcrel_offset */ | |
| 1595 | ||
| 1596 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1597 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1598 | 16, /* rightshift */ | |
| 1599 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1600 | 16, /* bitsize */ | |
| 1601 | FALSE, /* pc_relative */ | |
| 1602 | 0, /* bitpos */ | |
| f9c6b907 | 1603 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1604 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1605 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1606 | FALSE, /* partial_inplace */ | |
| 1607 | 0, /* src_mask */ | |
| 1608 | 0xffff, /* dst_mask */ | |
| 1609 | FALSE), /* pcrel_offset */ | |
| 1610 | ||
| 1611 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1612 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1613 | 32, /* rightshift */ | |
| 1614 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1615 | 16, /* bitsize */ | |
| 1616 | FALSE, /* pc_relative */ | |
| 1617 | 0, /* bitpos */ | |
| 1618 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1619 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1620 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1621 | FALSE, /* partial_inplace */ | |
| 1622 | 0, /* src_mask */ | |
| 1623 | 0xffff, /* dst_mask */ | |
| 1624 | FALSE), /* pcrel_offset */ | |
| 1625 | ||
| 1626 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1627 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1628 | 32, /* rightshift */ | |
| 1629 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1630 | 16, /* bitsize */ | |
| 1631 | FALSE, /* pc_relative */ | |
| 1632 | 0, /* bitpos */ | |
| 1633 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1634 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1635 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1636 | FALSE, /* partial_inplace */ | |
| 1637 | 0, /* src_mask */ | |
| 1638 | 0xffff, /* dst_mask */ | |
| 1639 | FALSE), /* pcrel_offset */ | |
| 1640 | ||
| 1641 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1642 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1643 | 48, /* rightshift */ | |
| 1644 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1645 | 16, /* bitsize */ | |
| 1646 | FALSE, /* pc_relative */ | |
| 1647 | 0, /* bitpos */ | |
| 1648 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1649 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1650 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1651 | FALSE, /* partial_inplace */ | |
| 1652 | 0, /* src_mask */ | |
| 1653 | 0xffff, /* dst_mask */ | |
| 1654 | FALSE), /* pcrel_offset */ | |
| 1655 | ||
| 1656 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1657 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1658 | 48, /* rightshift */ | |
| 1659 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1660 | 16, /* bitsize */ | |
| 1661 | FALSE, /* pc_relative */ | |
| 1662 | 0, /* bitpos */ | |
| 1663 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1664 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1665 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1666 | FALSE, /* partial_inplace */ | |
| 1667 | 0, /* src_mask */ | |
| 1668 | 0xffff, /* dst_mask */ | |
| 1669 | FALSE), /* pcrel_offset */ | |
| 1670 | ||
| 1671 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1672 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1673 | 0, /* rightshift */ | |
| 1674 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1675 | 16, /* bitsize */ | |
| 1676 | FALSE, /* pc_relative */ | |
| 1677 | 0, /* bitpos */ | |
| 1678 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1679 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1680 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1681 | FALSE, /* partial_inplace */ | |
| 1682 | 0, /* src_mask */ | |
| 1683 | 0xfffc, /* dst_mask */ | |
| 1684 | FALSE), /* pcrel_offset */ | |
| 1685 | ||
| 1686 | /* Like TPREL16_DS, but no overflow. */ | |
| 1687 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1688 | 0, /* rightshift */ | |
| 1689 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1690 | 16, /* bitsize */ | |
| 1691 | FALSE, /* pc_relative */ | |
| 1692 | 0, /* bitpos */ | |
| 1693 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1694 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1695 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1696 | FALSE, /* partial_inplace */ | |
| 1697 | 0, /* src_mask */ | |
| 1698 | 0xfffc, /* dst_mask */ | |
| 1699 | FALSE), /* pcrel_offset */ | |
| 1700 | ||
| 1701 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1702 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1703 | to the first entry relative to the TOC base (r2). */ | |
| 1704 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1705 | 0, /* rightshift */ | |
| 1706 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1707 | 16, /* bitsize */ | |
| 1708 | FALSE, /* pc_relative */ | |
| 1709 | 0, /* bitpos */ | |
| 1710 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1711 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1712 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1713 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1714 | 0, /* src_mask */ |
| 1715 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1716 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1717 | |
| 411e1bfb AM |
1718 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1719 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1720 | 0, /* rightshift */ |
| 1721 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1722 | 16, /* bitsize */ | |
| b34976b6 | 1723 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1724 | 0, /* bitpos */ |
| 1725 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1726 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1727 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1728 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1729 | 0, /* src_mask */ |
| 1730 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1731 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1732 | |
| 411e1bfb AM |
1733 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1734 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1735 | 16, /* rightshift */ |
| 1736 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1737 | 16, /* bitsize */ | |
| b34976b6 | 1738 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1739 | 0, /* bitpos */ |
| f9c6b907 | 1740 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1741 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1742 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1743 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1744 | 0, /* src_mask */ |
| 1745 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1746 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1747 | |
| 411e1bfb AM |
1748 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1749 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1750 | 16, /* rightshift */ |
| 1751 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1752 | 16, /* bitsize */ | |
| b34976b6 | 1753 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1754 | 0, /* bitpos */ |
| f9c6b907 | 1755 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1756 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1757 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1758 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1759 | 0, /* src_mask */ |
| 1760 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1761 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1762 | |
| 411e1bfb AM |
1763 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1764 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1765 | first entry relative to the TOC base (r2). */ | |
| 1766 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1767 | 0, /* rightshift */ |
| 1768 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1769 | 16, /* bitsize */ | |
| b34976b6 | 1770 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1771 | 0, /* bitpos */ |
| 411e1bfb AM |
1772 | complain_overflow_signed, /* complain_on_overflow */ |
| 1773 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1774 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1775 | FALSE, /* partial_inplace */ |
| d006db6c | 1776 | 0, /* src_mask */ |
| 411e1bfb | 1777 | 0xffff, /* dst_mask */ |
| b34976b6 | 1778 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1779 | |
| 411e1bfb AM |
1780 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1781 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1782 | 0, /* rightshift */ |
| 1783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1784 | 16, /* bitsize */ | |
| b34976b6 | 1785 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1786 | 0, /* bitpos */ |
| 411e1bfb AM |
1787 | complain_overflow_dont, /* complain_on_overflow */ |
| 1788 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1789 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1790 | FALSE, /* partial_inplace */ |
| d006db6c | 1791 | 0, /* src_mask */ |
| 411e1bfb | 1792 | 0xffff, /* dst_mask */ |
| b34976b6 | 1793 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1794 | |
| 411e1bfb AM |
1795 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1796 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1797 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1799 | 16, /* bitsize */ | |
| b34976b6 | 1800 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1801 | 0, /* bitpos */ |
| f9c6b907 | 1802 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1803 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1804 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1805 | FALSE, /* partial_inplace */ |
| d006db6c | 1806 | 0, /* src_mask */ |
| 411e1bfb | 1807 | 0xffff, /* dst_mask */ |
| b34976b6 | 1808 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1809 | |
| 411e1bfb AM |
1810 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1811 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1812 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1813 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1814 | 16, /* bitsize */ | |
| b34976b6 | 1815 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1816 | 0, /* bitpos */ |
| f9c6b907 | 1817 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1818 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1819 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1820 | FALSE, /* partial_inplace */ |
| d006db6c | 1821 | 0, /* src_mask */ |
| 411e1bfb | 1822 | 0xffff, /* dst_mask */ |
| b34976b6 | 1823 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1824 | |
| 411e1bfb AM |
1825 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1826 | the offset to the entry relative to the TOC base (r2). */ | |
| 1827 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1828 | 0, /* rightshift */ |
| 1829 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1830 | 16, /* bitsize */ | |
| b34976b6 | 1831 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1832 | 0, /* bitpos */ |
| 411e1bfb | 1833 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1834 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1835 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1836 | FALSE, /* partial_inplace */ |
| d006db6c | 1837 | 0, /* src_mask */ |
| 5bd4f169 | 1838 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1839 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1840 | |
| 411e1bfb AM |
1841 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1842 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1843 | 0, /* rightshift */ |
| c061c2d8 AM |
1844 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1845 | 16, /* bitsize */ | |
| b34976b6 | 1846 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1847 | 0, /* bitpos */ |
| 411e1bfb AM |
1848 | complain_overflow_dont, /* complain_on_overflow */ |
| 1849 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1850 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1851 | FALSE, /* partial_inplace */ |
| d006db6c | 1852 | 0, /* src_mask */ |
| c061c2d8 | 1853 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1854 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1855 | |
| 411e1bfb AM |
1856 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1857 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1858 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1859 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1860 | 16, /* bitsize */ | |
| b34976b6 | 1861 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1862 | 0, /* bitpos */ |
| f9c6b907 | 1863 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1864 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1865 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1866 | FALSE, /* partial_inplace */ |
| d006db6c | 1867 | 0, /* src_mask */ |
| 411e1bfb | 1868 | 0xffff, /* dst_mask */ |
| b34976b6 | 1869 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1870 | |
| 411e1bfb AM |
1871 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1872 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1873 | 16, /* rightshift */ | |
| 1874 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1875 | 16, /* bitsize */ | |
| 1876 | FALSE, /* pc_relative */ | |
| 1877 | 0, /* bitpos */ | |
| f9c6b907 | 1878 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1879 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1880 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1881 | FALSE, /* partial_inplace */ | |
| 1882 | 0, /* src_mask */ | |
| 1883 | 0xffff, /* dst_mask */ | |
| 1884 | FALSE), /* pcrel_offset */ | |
| 1885 | ||
| 1886 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1887 | offset to the entry relative to the TOC base (r2). */ | |
| 1888 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1889 | 0, /* rightshift */ |
| 1890 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1891 | 16, /* bitsize */ | |
| b34976b6 | 1892 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1893 | 0, /* bitpos */ |
| 1894 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1895 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1896 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1897 | FALSE, /* partial_inplace */ |
| d006db6c | 1898 | 0, /* src_mask */ |
| ad8e1ba5 | 1899 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1900 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1901 | |
| 411e1bfb AM |
1902 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1903 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1904 | 0, /* rightshift */ |
| 1905 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1906 | 16, /* bitsize */ | |
| b34976b6 | 1907 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1908 | 0, /* bitpos */ |
| 1909 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1910 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1911 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1912 | FALSE, /* partial_inplace */ |
| d006db6c | 1913 | 0, /* src_mask */ |
| ad8e1ba5 | 1914 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1915 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1916 | |
| 411e1bfb AM |
1917 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1918 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1919 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1920 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1921 | 16, /* bitsize */ | |
| b34976b6 | 1922 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1923 | 0, /* bitpos */ |
| f9c6b907 | 1924 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1925 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1926 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1927 | FALSE, /* partial_inplace */ |
| d006db6c | 1928 | 0, /* src_mask */ |
| 411e1bfb | 1929 | 0xffff, /* dst_mask */ |
| b34976b6 | 1930 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1931 | |
| 411e1bfb AM |
1932 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1933 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1934 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1935 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1936 | 16, /* bitsize */ | |
| b34976b6 | 1937 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1938 | 0, /* bitpos */ |
| f9c6b907 | 1939 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1940 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1941 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1942 | FALSE, /* partial_inplace */ |
| d006db6c | 1943 | 0, /* src_mask */ |
| 411e1bfb | 1944 | 0xffff, /* dst_mask */ |
| b34976b6 | 1945 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1946 | |
| 25f23106 AM |
1947 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1948 | 0, /* rightshift */ | |
| 1949 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1950 | 0, /* bitsize */ | |
| 1951 | FALSE, /* pc_relative */ | |
| 1952 | 0, /* bitpos */ | |
| 1953 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1954 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1955 | "R_PPC64_JMP_IREL", /* name */ | |
| 1956 | FALSE, /* partial_inplace */ | |
| 1957 | 0, /* src_mask */ | |
| 1958 | 0, /* dst_mask */ | |
| 1959 | FALSE), /* pcrel_offset */ | |
| 1960 | ||
| e054468f AM |
1961 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1962 | 0, /* rightshift */ | |
| 1963 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1964 | 64, /* bitsize */ | |
| 1965 | FALSE, /* pc_relative */ | |
| 1966 | 0, /* bitpos */ | |
| 1967 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1968 | bfd_elf_generic_reloc, /* special_function */ | |
| 1969 | "R_PPC64_IRELATIVE", /* name */ | |
| 1970 | FALSE, /* partial_inplace */ | |
| 1971 | 0, /* src_mask */ | |
| 1972 | ONES (64), /* dst_mask */ | |
| 1973 | FALSE), /* pcrel_offset */ | |
| 1974 | ||
| 25f23106 AM |
1975 | /* A 16 bit relative relocation. */ |
| 1976 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1977 | 0, /* rightshift */ | |
| 1978 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1979 | 16, /* bitsize */ | |
| 1980 | TRUE, /* pc_relative */ | |
| 1981 | 0, /* bitpos */ | |
| b80eed39 | 1982 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1983 | bfd_elf_generic_reloc, /* special_function */ |
| 1984 | "R_PPC64_REL16", /* name */ | |
| 1985 | FALSE, /* partial_inplace */ | |
| 1986 | 0, /* src_mask */ | |
| 1987 | 0xffff, /* dst_mask */ | |
| 1988 | TRUE), /* pcrel_offset */ | |
| 1989 | ||
| 1990 | /* A 16 bit relative relocation without overflow. */ | |
| 1991 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1992 | 0, /* rightshift */ | |
| 1993 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1994 | 16, /* bitsize */ | |
| 1995 | TRUE, /* pc_relative */ | |
| 1996 | 0, /* bitpos */ | |
| 1997 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1998 | bfd_elf_generic_reloc, /* special_function */ | |
| 1999 | "R_PPC64_REL16_LO", /* name */ | |
| 2000 | FALSE, /* partial_inplace */ | |
| 2001 | 0, /* src_mask */ | |
| 2002 | 0xffff, /* dst_mask */ | |
| 2003 | TRUE), /* pcrel_offset */ | |
| 2004 | ||
| 2005 | /* The high order 16 bits of a relative address. */ | |
| 2006 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2007 | 16, /* rightshift */ | |
| 2008 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2009 | 16, /* bitsize */ | |
| 2010 | TRUE, /* pc_relative */ | |
| 2011 | 0, /* bitpos */ | |
| f9c6b907 | 2012 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2013 | bfd_elf_generic_reloc, /* special_function */ |
| 2014 | "R_PPC64_REL16_HI", /* name */ | |
| 2015 | FALSE, /* partial_inplace */ | |
| 2016 | 0, /* src_mask */ | |
| 2017 | 0xffff, /* dst_mask */ | |
| 2018 | TRUE), /* pcrel_offset */ | |
| 2019 | ||
| 2020 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2021 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2022 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2023 | 16, /* rightshift */ | |
| 2024 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2025 | 16, /* bitsize */ | |
| 2026 | TRUE, /* pc_relative */ | |
| 2027 | 0, /* bitpos */ | |
| f9c6b907 | 2028 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2029 | ppc64_elf_ha_reloc, /* special_function */ |
| 2030 | "R_PPC64_REL16_HA", /* name */ | |
| 2031 | FALSE, /* partial_inplace */ | |
| 2032 | 0, /* src_mask */ | |
| 2033 | 0xffff, /* dst_mask */ | |
| 2034 | TRUE), /* pcrel_offset */ | |
| 2035 | ||
| a680de9a PB |
2036 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2037 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2038 | 16, /* rightshift */ | |
| 2039 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2040 | 16, /* bitsize */ | |
| 2041 | TRUE, /* pc_relative */ | |
| 2042 | 0, /* bitpos */ | |
| 2043 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2044 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2045 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2046 | FALSE, /* partial_inplace */ | |
| 2047 | 0, /* src_mask */ | |
| 2048 | 0x1fffc1, /* dst_mask */ | |
| 2049 | TRUE), /* pcrel_offset */ | |
| 2050 | ||
| 7ba71655 AM |
2051 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2052 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2053 | 16, /* rightshift */ | |
| 2054 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2055 | 16, /* bitsize */ | |
| 2056 | FALSE, /* pc_relative */ | |
| 2057 | 0, /* bitpos */ | |
| 2058 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2059 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2060 | "R_PPC64_16DX_HA", /* name */ | |
| 2061 | FALSE, /* partial_inplace */ | |
| 2062 | 0, /* src_mask */ | |
| 2063 | 0x1fffc1, /* dst_mask */ | |
| 2064 | FALSE), /* pcrel_offset */ | |
| 2065 | ||
| f9c6b907 AM |
2066 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2067 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2068 | 16, /* rightshift */ | |
| 2069 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2070 | 16, /* bitsize */ | |
| 2071 | FALSE, /* pc_relative */ | |
| 2072 | 0, /* bitpos */ | |
| 2073 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2074 | bfd_elf_generic_reloc, /* special_function */ | |
| 2075 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2076 | FALSE, /* partial_inplace */ | |
| 2077 | 0, /* src_mask */ | |
| 2078 | 0xffff, /* dst_mask */ | |
| 2079 | FALSE), /* pcrel_offset */ | |
| 2080 | ||
| 2081 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2082 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2083 | 16, /* rightshift */ | |
| 2084 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2085 | 16, /* bitsize */ | |
| 2086 | FALSE, /* pc_relative */ | |
| 2087 | 0, /* bitpos */ | |
| 2088 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2089 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2090 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2091 | FALSE, /* partial_inplace */ | |
| 2092 | 0, /* src_mask */ | |
| 2093 | 0xffff, /* dst_mask */ | |
| 2094 | FALSE), /* pcrel_offset */ | |
| 2095 | ||
| 2096 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2097 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2098 | 16, /* rightshift */ | |
| 2099 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2100 | 16, /* bitsize */ | |
| 2101 | FALSE, /* pc_relative */ | |
| 2102 | 0, /* bitpos */ | |
| 2103 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2104 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2105 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2106 | FALSE, /* partial_inplace */ | |
| 2107 | 0, /* src_mask */ | |
| 2108 | 0xffff, /* dst_mask */ | |
| 2109 | FALSE), /* pcrel_offset */ | |
| 2110 | ||
| 2111 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2112 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2113 | 16, /* rightshift */ | |
| 2114 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2115 | 16, /* bitsize */ | |
| 2116 | FALSE, /* pc_relative */ | |
| 2117 | 0, /* bitpos */ | |
| 2118 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2119 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2120 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2121 | FALSE, /* partial_inplace */ | |
| 2122 | 0, /* src_mask */ | |
| 2123 | 0xffff, /* dst_mask */ | |
| 2124 | FALSE), /* pcrel_offset */ | |
| 2125 | ||
| 2126 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2127 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2128 | 16, /* rightshift */ | |
| 2129 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2130 | 16, /* bitsize */ | |
| 2131 | FALSE, /* pc_relative */ | |
| 2132 | 0, /* bitpos */ | |
| 2133 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2134 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2135 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2136 | FALSE, /* partial_inplace */ | |
| 2137 | 0, /* src_mask */ | |
| 2138 | 0xffff, /* dst_mask */ | |
| 2139 | FALSE), /* pcrel_offset */ | |
| 2140 | ||
| 2141 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2142 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2143 | 16, /* rightshift */ | |
| 2144 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2145 | 16, /* bitsize */ | |
| 2146 | FALSE, /* pc_relative */ | |
| 2147 | 0, /* bitpos */ | |
| 2148 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2149 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2150 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2151 | FALSE, /* partial_inplace */ | |
| 2152 | 0, /* src_mask */ | |
| 2153 | 0xffff, /* dst_mask */ | |
| 2154 | FALSE), /* pcrel_offset */ | |
| 2155 | ||
| 006589cf AM |
2156 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2157 | HOWTO (R_PPC64_ENTRY, | |
| 2158 | 0, /* rightshift */ | |
| 2159 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2160 | 32, /* bitsize */ | |
| 2161 | FALSE, /* pc_relative */ | |
| 2162 | 0, /* bitpos */ | |
| 2163 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2164 | bfd_elf_generic_reloc, /* special_function */ | |
| 2165 | "R_PPC64_ENTRY", /* name */ | |
| 2166 | FALSE, /* partial_inplace */ | |
| 2167 | 0, /* src_mask */ | |
| 2168 | 0, /* dst_mask */ | |
| 2169 | FALSE), /* pcrel_offset */ | |
| 2170 | ||
| 45965137 AM |
2171 | /* Like ADDR64, but use local entry point of function. */ |
| 2172 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2173 | 0, /* rightshift */ | |
| 2174 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2175 | 64, /* bitsize */ | |
| 2176 | FALSE, /* pc_relative */ | |
| 2177 | 0, /* bitpos */ | |
| 2178 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2179 | bfd_elf_generic_reloc, /* special_function */ | |
| 2180 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2181 | FALSE, /* partial_inplace */ | |
| 2182 | 0, /* src_mask */ | |
| 2183 | ONES (64), /* dst_mask */ | |
| 2184 | FALSE), /* pcrel_offset */ | |
| 2185 | ||
| 5bd4f169 AM |
2186 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2187 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2188 | 0, /* rightshift */ | |
| 2189 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2190 | 0, /* bitsize */ | |
| b34976b6 | 2191 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2192 | 0, /* bitpos */ |
| 2193 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2194 | NULL, /* special_function */ | |
| 2195 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2196 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2197 | 0, /* src_mask */ |
| 2198 | 0, /* dst_mask */ | |
| b34976b6 | 2199 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2200 | |
| 2201 | /* GNU extension to record C++ vtable member usage. */ | |
| 2202 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2203 | 0, /* rightshift */ | |
| 2204 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2205 | 0, /* bitsize */ | |
| b34976b6 | 2206 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2207 | 0, /* bitpos */ |
| 2208 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2209 | NULL, /* special_function */ | |
| 2210 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2211 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2212 | 0, /* src_mask */ |
| 2213 | 0, /* dst_mask */ | |
| b34976b6 | 2214 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2215 | }; |
| 2216 | ||
| 2217 | \f | |
| 2218 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2219 | be done. */ | |
| 2220 | ||
| 2221 | static void | |
| 4ce794b7 | 2222 | ppc_howto_init (void) |
| 5bd4f169 AM |
2223 | { |
| 2224 | unsigned int i, type; | |
| 2225 | ||
| a4b6fadd | 2226 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2227 | { |
| 2228 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2229 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2230 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2231 | } | |
| 2232 | } | |
| 2233 | ||
| 2234 | static reloc_howto_type * | |
| f3185997 | 2235 | ppc64_elf_reloc_type_lookup (bfd *abfd, |
| 4ce794b7 | 2236 | bfd_reloc_code_real_type code) |
| 5bd4f169 | 2237 | { |
| 411e1bfb | 2238 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2239 | |
| 2240 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2241 | /* Initialize howto table if needed. */ | |
| 2242 | ppc_howto_init (); | |
| 2243 | ||
| 4ce794b7 | 2244 | switch (code) |
| 5bd4f169 AM |
2245 | { |
| 2246 | default: | |
| f3185997 | 2247 | /* xgettext:c-format */ |
| e8f5af78 | 2248 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code); |
| f3185997 | 2249 | bfd_set_error (bfd_error_bad_value); |
| 4ce794b7 | 2250 | return NULL; |
| 5bd4f169 | 2251 | |
| 411e1bfb AM |
2252 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2253 | break; | |
| 2254 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2255 | break; | |
| 2256 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2257 | break; | |
| 2258 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2259 | break; | |
| 2260 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2261 | break; | |
| 2262 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2263 | break; | |
| f9c6b907 AM |
2264 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2265 | break; | |
| 411e1bfb | 2266 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2267 | break; |
| f9c6b907 AM |
2268 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2269 | break; | |
| 411e1bfb | 2270 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2315 | break; |
| 411e1bfb | 2316 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2317 | break; |
| 411e1bfb | 2318 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2319 | break; |
| 411e1bfb | 2320 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2327 | break; |
| 411e1bfb | 2328 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2329 | break; |
| 411e1bfb | 2330 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2331 | break; |
| 411e1bfb | 2332 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2333 | break; |
| 411e1bfb | 2334 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2335 | break; |
| 411e1bfb | 2336 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2337 | break; |
| 411e1bfb | 2338 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2339 | break; |
| 411e1bfb | 2340 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2341 | break; |
| 411e1bfb | 2342 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2343 | break; |
| 411e1bfb | 2344 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2345 | break; |
| 411e1bfb | 2346 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2347 | break; |
| 411e1bfb | 2348 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2349 | break; |
| 411e1bfb | 2350 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2351 | break; |
| 411e1bfb | 2352 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2353 | break; |
| 411e1bfb | 2354 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2355 | break; |
| 411e1bfb | 2356 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2357 | break; |
| 411e1bfb | 2358 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2359 | break; |
| 411e1bfb | 2360 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2361 | break; |
| 411e1bfb | 2362 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2363 | break; |
| 411e1bfb | 2364 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2365 | break; |
| 411e1bfb | 2366 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2367 | break; |
| 411e1bfb | 2368 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2369 | break; |
| 411e1bfb | 2370 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2371 | break; |
| 411e1bfb | 2372 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2373 | break; |
| 411e1bfb | 2374 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2375 | break; |
| 727fc41e AM |
2376 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2377 | break; | |
| 2378 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2379 | break; | |
| 411e1bfb | 2380 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2381 | break; |
| 411e1bfb | 2382 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2383 | break; |
| 411e1bfb | 2384 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2385 | break; |
| 411e1bfb | 2386 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2387 | break; |
| f9c6b907 AM |
2388 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2389 | break; | |
| 411e1bfb | 2390 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2391 | break; |
| f9c6b907 AM |
2392 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2393 | break; | |
| 411e1bfb | 2394 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2395 | break; |
| 411e1bfb AM |
2396 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2397 | break; | |
| 2398 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2399 | break; | |
| 2400 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2401 | break; | |
| f9c6b907 AM |
2402 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2403 | break; | |
| 411e1bfb AM |
2404 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2405 | break; | |
| f9c6b907 AM |
2406 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2407 | break; | |
| 411e1bfb AM |
2408 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2409 | break; | |
| 2410 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2413 | break; | |
| 2414 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2415 | break; | |
| 2416 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2417 | break; | |
| 2418 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2419 | break; | |
| 2420 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2421 | break; | |
| 2422 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2423 | break; | |
| 2424 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2425 | break; | |
| 2426 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2427 | break; | |
| 2428 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2429 | break; | |
| 2430 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2431 | break; | |
| 2432 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2433 | break; | |
| 2434 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2435 | break; | |
| 2436 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2437 | break; | |
| 2438 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2439 | break; | |
| 2440 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2441 | break; | |
| 2442 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2443 | break; | |
| 2444 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2445 | break; | |
| 2446 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2447 | break; | |
| 2448 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2449 | break; | |
| 2450 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2451 | break; | |
| 2452 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2453 | break; | |
| 2454 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2455 | break; | |
| 2456 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2457 | break; | |
| 2458 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2459 | break; | |
| 2460 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2461 | break; | |
| 2462 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2463 | break; | |
| 2464 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2465 | break; | |
| 25f23106 AM |
2466 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2467 | break; | |
| 2468 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2469 | break; | |
| 2470 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2471 | break; | |
| 2472 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2473 | break; | |
| 7ba71655 AM |
2474 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2475 | break; | |
| a680de9a PB |
2476 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2477 | break; | |
| 006589cf AM |
2478 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2479 | break; | |
| 45965137 AM |
2480 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2481 | break; | |
| 411e1bfb AM |
2482 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2483 | break; | |
| 2484 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2485 | break; |
| 2486 | } | |
| 2487 | ||
| 4ce794b7 | 2488 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2489 | }; |
| 2490 | ||
| 157090f7 AM |
2491 | static reloc_howto_type * |
| 2492 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2493 | const char *r_name) | |
| 2494 | { | |
| 2495 | unsigned int i; | |
| 2496 | ||
| a4b6fadd | 2497 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2498 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2499 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2500 | return &ppc64_elf_howto_raw[i]; | |
| 2501 | ||
| f3185997 | 2502 | |
| 157090f7 AM |
2503 | return NULL; |
| 2504 | } | |
| 2505 | ||
| 5bd4f169 AM |
2506 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2507 | ||
| f3185997 | 2508 | static bfd_boolean |
| 4aef7643 | 2509 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2510 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2511 | { |
| 65f38f15 AM |
2512 | unsigned int type; |
| 2513 | ||
| ef60b7ff | 2514 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2515 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2516 | ppc_howto_init (); |
| 2517 | ||
| 65f38f15 | 2518 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2519 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2520 | { |
| 695344c0 | 2521 | /* xgettext:c-format */ |
| 0aa13fee | 2522 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| cf97bcb0 | 2523 | abfd, type); |
| f3185997 NC |
2524 | bfd_set_error (bfd_error_bad_value); |
| 2525 | return FALSE; | |
| d0fb9a8d | 2526 | } |
| 65f38f15 | 2527 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| f3185997 NC |
2528 | if (cache_ptr->howto == NULL || cache_ptr->howto->name == NULL) |
| 2529 | { | |
| 2530 | /* xgettext:c-format */ | |
| 2531 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), | |
| 2532 | abfd, type); | |
| 2533 | bfd_set_error (bfd_error_bad_value); | |
| 2534 | return FALSE; | |
| 2535 | } | |
| 2536 | ||
| 2537 | return TRUE; | |
| 5bd4f169 AM |
2538 | } |
| 2539 | ||
| 04c9666a | 2540 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2541 | |
| 2542 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2543 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2544 | void *data, asection *input_section, | |
| 2545 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2546 | { |
| a680de9a PB |
2547 | enum elf_ppc64_reloc_type r_type; |
| 2548 | long insn; | |
| 2549 | bfd_size_type octets; | |
| 3de43e7b | 2550 | bfd_vma value; |
| a680de9a | 2551 | |
| 805fc799 AM |
2552 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2553 | call the generic function. Any adjustment will be done at final | |
| 2554 | link time. */ | |
| 2555 | if (output_bfd != NULL) | |
| cedb70c5 | 2556 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2557 | input_section, output_bfd, error_message); |
| 2558 | ||
| 2559 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2560 | We won't actually be using the low 16 bits, so trashing them | |
| 2561 | doesn't matter. */ | |
| 2562 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2563 | r_type = reloc_entry->howto->type; |
| 2564 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2565 | return bfd_reloc_continue; | |
| 2566 | ||
| 2567 | value = 0; | |
| 2568 | if (!bfd_is_com_section (symbol->section)) | |
| 2569 | value = symbol->value; | |
| 2570 | value += (reloc_entry->addend | |
| 2571 | + symbol->section->output_offset | |
| 2572 | + symbol->section->output_section->vma); | |
| 2573 | value -= (reloc_entry->address | |
| 2574 | + input_section->output_offset | |
| 2575 | + input_section->output_section->vma); | |
| 3de43e7b | 2576 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2577 | |
| 2578 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2579 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2580 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2581 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2582 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2583 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2584 | return bfd_reloc_overflow; |
| 2585 | return bfd_reloc_ok; | |
| 805fc799 | 2586 | } |
| 5bd4f169 | 2587 | |
| 2441e016 AM |
2588 | static bfd_reloc_status_type |
| 2589 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2590 | void *data, asection *input_section, | |
| 2591 | bfd *output_bfd, char **error_message) | |
| 2592 | { | |
| 2593 | if (output_bfd != NULL) | |
| 2594 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2595 | input_section, output_bfd, error_message); | |
| 2596 | ||
| 699733f6 AM |
2597 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2598 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2599 | { |
| 2600 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2601 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2602 | NULL, NULL, FALSE); |
| 2441e016 AM |
2603 | if (dest != (bfd_vma) -1) |
| 2604 | reloc_entry->addend = dest - (symbol->value | |
| 2605 | + symbol->section->output_section->vma | |
| 2606 | + symbol->section->output_offset); | |
| 2607 | } | |
| 810d4e75 AM |
2608 | else |
| 2609 | { | |
| 2610 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2611 | ||
| 2612 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2613 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2614 | && abiversion (symbol->section->owner) >= 2) |
| 2615 | { | |
| 2616 | unsigned int i; | |
| 2617 | ||
| 2618 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2619 | { | |
| 2620 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2621 | ||
| 2622 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2623 | { | |
| 2624 | elfsym = (elf_symbol_type *) symdef; | |
| 2625 | break; | |
| 2626 | } | |
| 2627 | } | |
| 2628 | } | |
| 2629 | reloc_entry->addend | |
| 2630 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2631 | } | |
| 2441e016 AM |
2632 | return bfd_reloc_continue; |
| 2633 | } | |
| 2634 | ||
| 805fc799 | 2635 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2636 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2637 | void *data, asection *input_section, | |
| 2638 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2639 | { |
| 2640 | long insn; | |
| 04c9666a | 2641 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2642 | bfd_size_type octets; |
| 794e51c0 AM |
2643 | /* Assume 'at' branch hints. */ |
| 2644 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2645 | |
| 2646 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2647 | call the generic function. Any adjustment will be done at final | |
| 2648 | link time. */ | |
| 5bd4f169 | 2649 | if (output_bfd != NULL) |
| cedb70c5 | 2650 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2651 | input_section, output_bfd, error_message); |
| 2652 | ||
| 2653 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2654 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2655 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2656 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2657 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2658 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2659 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2660 | |
| 794e51c0 | 2661 | if (is_isa_v2) |
| 5bd4f169 | 2662 | { |
| 805fc799 AM |
2663 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2664 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2665 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2666 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2667 | insn |= 0x02 << 21; | |
| 2668 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2669 | insn |= 0x08 << 21; | |
| 2670 | else | |
| 2441e016 | 2671 | goto out; |
| 5bd4f169 | 2672 | } |
| 805fc799 AM |
2673 | else |
| 2674 | { | |
| 2675 | bfd_vma target = 0; | |
| 2676 | bfd_vma from; | |
| 5bd4f169 | 2677 | |
| 805fc799 AM |
2678 | if (!bfd_is_com_section (symbol->section)) |
| 2679 | target = symbol->value; | |
| 2680 | target += symbol->section->output_section->vma; | |
| 2681 | target += symbol->section->output_offset; | |
| 2682 | target += reloc_entry->addend; | |
| 5bd4f169 | 2683 | |
| 805fc799 AM |
2684 | from = (reloc_entry->address |
| 2685 | + input_section->output_offset | |
| 2686 | + input_section->output_section->vma); | |
| 5bd4f169 | 2687 | |
| 805fc799 AM |
2688 | /* Invert 'y' bit if not the default. */ |
| 2689 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2690 | insn ^= 0x01 << 21; | |
| 2691 | } | |
| 4ce794b7 | 2692 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2693 | out: |
| 2694 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2695 | input_section, output_bfd, error_message); | |
| 805fc799 | 2696 | } |
| 5bd4f169 | 2697 | |
| 805fc799 | 2698 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2699 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2700 | void *data, asection *input_section, | |
| 2701 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2702 | { |
| 2703 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2704 | call the generic function. Any adjustment will be done at final | |
| 2705 | link time. */ | |
| 2706 | if (output_bfd != NULL) | |
| cedb70c5 | 2707 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2708 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2709 | |
| 805fc799 AM |
2710 | /* Subtract the symbol section base address. */ |
| 2711 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2712 | return bfd_reloc_continue; |
| 2713 | } | |
| 2714 | ||
| 805fc799 | 2715 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2716 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2717 | void *data, asection *input_section, | |
| 2718 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2719 | { |
| 2720 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2721 | call the generic function. Any adjustment will be done at final | |
| 2722 | link time. */ | |
| 2723 | if (output_bfd != NULL) | |
| cedb70c5 | 2724 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2725 | input_section, output_bfd, error_message); |
| 2726 | ||
| 2727 | /* Subtract the symbol section base address. */ | |
| 2728 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2729 | ||
| 2730 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2731 | reloc_entry->addend += 0x8000; | |
| 2732 | return bfd_reloc_continue; | |
| 2733 | } | |
| 2734 | ||
| 2735 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2736 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2737 | void *data, asection *input_section, | |
| 2738 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2739 | { |
| 2740 | bfd_vma TOCstart; | |
| 2741 | ||
| 2742 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2743 | call the generic function. Any adjustment will be done at final | |
| 2744 | link time. */ | |
| 2745 | if (output_bfd != NULL) | |
| cedb70c5 | 2746 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2747 | input_section, output_bfd, error_message); |
| 2748 | ||
| 2749 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2750 | if (TOCstart == 0) | |
| 1c865ab2 | 2751 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2752 | |
| 2753 | /* Subtract the TOC base address. */ | |
| 2754 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2755 | return bfd_reloc_continue; | |
| 2756 | } | |
| 2757 | ||
| 2758 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2759 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2760 | void *data, asection *input_section, | |
| 2761 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2762 | { |
| 2763 | bfd_vma TOCstart; | |
| 2764 | ||
| 2765 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2766 | call the generic function. Any adjustment will be done at final | |
| 2767 | link time. */ | |
| 2768 | if (output_bfd != NULL) | |
| cedb70c5 | 2769 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2770 | input_section, output_bfd, error_message); |
| 2771 | ||
| 2772 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2773 | if (TOCstart == 0) | |
| 1c865ab2 | 2774 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2775 | |
| 2776 | /* Subtract the TOC base address. */ | |
| 2777 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2778 | ||
| 2779 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2780 | reloc_entry->addend += 0x8000; | |
| 2781 | return bfd_reloc_continue; | |
| 2782 | } | |
| 2783 | ||
| 2784 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2785 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2786 | void *data, asection *input_section, | |
| 2787 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2788 | { |
| 2789 | bfd_vma TOCstart; | |
| 2790 | bfd_size_type octets; | |
| 2791 | ||
| 2792 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2793 | call the generic function. Any adjustment will be done at final | |
| 2794 | link time. */ | |
| 2795 | if (output_bfd != NULL) | |
| cedb70c5 | 2796 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2797 | input_section, output_bfd, error_message); |
| 2798 | ||
| 2799 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2800 | if (TOCstart == 0) | |
| 1c865ab2 | 2801 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2802 | |
| 2803 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2804 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2805 | return bfd_reloc_ok; | |
| 2806 | } | |
| 2807 | ||
| 2808 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2809 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2810 | void *data, asection *input_section, | |
| 2811 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2812 | { |
| 2813 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2814 | call the generic function. Any adjustment will be done at final | |
| 2815 | link time. */ | |
| 2816 | if (output_bfd != NULL) | |
| cedb70c5 | 2817 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2818 | input_section, output_bfd, error_message); |
| 2819 | ||
| 2820 | if (error_message != NULL) | |
| 2821 | { | |
| 2822 | static char buf[60]; | |
| 2823 | sprintf (buf, "generic linker can't handle %s", | |
| 2824 | reloc_entry->howto->name); | |
| 2825 | *error_message = buf; | |
| 2826 | } | |
| 2827 | return bfd_reloc_dangerous; | |
| 2828 | } | |
| 2829 | ||
| 927be08e AM |
2830 | /* Track GOT entries needed for a given symbol. We might need more |
| 2831 | than one got entry per symbol. */ | |
| 2832 | struct got_entry | |
| 2833 | { | |
| 2834 | struct got_entry *next; | |
| 2835 | ||
| 2836 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2837 | bfd_vma addend; | |
| 2838 | ||
| 2839 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2840 | symbol referenced from different input files. This is to support | |
| 2841 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2842 | from one input file to another. After partitioning into TOC groups | |
| 2843 | we merge entries within the group. | |
| 2844 | ||
| 2845 | Point to the BFD owning this GOT entry. */ | |
| 2846 | bfd *owner; | |
| 2847 | ||
| 2848 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2849 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2850 | unsigned char tls_type; |
| 927be08e AM |
2851 | |
| 2852 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2853 | unsigned char is_indirect; |
| 927be08e AM |
2854 | |
| 2855 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2856 | union | |
| 2857 | { | |
| 2858 | bfd_signed_vma refcount; | |
| 2859 | bfd_vma offset; | |
| 2860 | struct got_entry *ent; | |
| 2861 | } got; | |
| 2862 | }; | |
| 2863 | ||
| 2864 | /* The same for PLT. */ | |
| 2865 | struct plt_entry | |
| 2866 | { | |
| 2867 | struct plt_entry *next; | |
| 2868 | ||
| 2869 | bfd_vma addend; | |
| 2870 | ||
| 2871 | union | |
| 2872 | { | |
| 2873 | bfd_signed_vma refcount; | |
| 2874 | bfd_vma offset; | |
| 2875 | } plt; | |
| 2876 | }; | |
| 2877 | ||
| e717da7e AM |
2878 | struct ppc64_elf_obj_tdata |
| 2879 | { | |
| 2880 | struct elf_obj_tdata elf; | |
| 2881 | ||
| 2882 | /* Shortcuts to dynamic linker sections. */ | |
| 2883 | asection *got; | |
| 2884 | asection *relgot; | |
| 2885 | ||
| b3fac117 AM |
2886 | /* Used during garbage collection. We attach global symbols defined |
| 2887 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2888 | asection *deleted_section; | |
| 81688140 | 2889 | |
| 927be08e | 2890 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2891 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2892 | struct got_entry tlsld_got; |
| 8860955f | 2893 | |
| 729eabd5 AM |
2894 | union { |
| 2895 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2896 | Elf_Internal_Rela *relocs; | |
| 2897 | ||
| 2898 | /* Section contents. */ | |
| 2899 | bfd_byte *contents; | |
| 2900 | } opd; | |
| d77c8a4b AM |
2901 | |
| 2902 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2903 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2904 | unsigned int has_small_toc_reloc : 1; |
| 2905 | ||
| 560c8763 AM |
2906 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2907 | instruction not one we handle. */ | |
| 2908 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2909 | }; |
| 2910 | ||
| 2911 | #define ppc64_elf_tdata(bfd) \ | |
| 2912 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2913 | ||
| 2914 | #define ppc64_tlsld_got(bfd) \ | |
| 2915 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2916 | ||
| 0c8d6e5c AM |
2917 | #define is_ppc64_elf(bfd) \ |
| 2918 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2919 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2920 | |
| e717da7e AM |
2921 | /* Override the generic function because we store some extras. */ |
| 2922 | ||
| 2923 | static bfd_boolean | |
| 2924 | ppc64_elf_mkobject (bfd *abfd) | |
| 2925 | { | |
| 0ffa91dd | 2926 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2927 | PPC64_ELF_DATA); |
| e717da7e AM |
2928 | } |
| 2929 | ||
| feee612b | 2930 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2931 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2932 | |
| b34976b6 | 2933 | static bfd_boolean |
| 4ce794b7 | 2934 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2935 | { |
| 14b57c7c AM |
2936 | if (!abfd->arch_info->the_default) |
| 2937 | return TRUE; | |
| 2938 | ||
| 2939 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2940 | { |
| 2941 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2942 | ||
| 2943 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2944 | { | |
| 2945 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2946 | abfd->arch_info = abfd->arch_info->next; | |
| 2947 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2948 | } | |
| 2949 | } | |
| 14b57c7c | 2950 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2951 | } |
| 2952 | ||
| d37c89e5 AM |
2953 | /* Support for core dump NOTE sections. */ |
| 2954 | ||
| 2955 | static bfd_boolean | |
| 2956 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2957 | { | |
| eea6121a | 2958 | size_t offset, size; |
| d37c89e5 AM |
2959 | |
| 2960 | if (note->descsz != 504) | |
| 2961 | return FALSE; | |
| 2962 | ||
| 2963 | /* pr_cursig */ | |
| 228e534f | 2964 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2965 | |
| 2966 | /* pr_pid */ | |
| 228e534f | 2967 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2968 | |
| 2969 | /* pr_reg */ | |
| 2970 | offset = 112; | |
| eea6121a | 2971 | size = 384; |
| d37c89e5 AM |
2972 | |
| 2973 | /* Make a ".reg/999" section. */ | |
| 2974 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2975 | size, note->descpos + offset); |
| d37c89e5 AM |
2976 | } |
| 2977 | ||
| 2978 | static bfd_boolean | |
| 2979 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2980 | { | |
| 2981 | if (note->descsz != 136) | |
| 2982 | return FALSE; | |
| 2983 | ||
| 228e534f | 2984 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2985 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2986 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2987 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2988 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2989 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2990 | ||
| 2991 | return TRUE; | |
| 2992 | } | |
| 2993 | ||
| 183e98be AM |
2994 | static char * |
| 2995 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2996 | ...) | |
| 2997 | { | |
| 2998 | switch (note_type) | |
| 2999 | { | |
| 3000 | default: | |
| 3001 | return NULL; | |
| 3002 | ||
| 3003 | case NT_PRPSINFO: | |
| 3004 | { | |
| 3005 | char data[136]; | |
| 3006 | va_list ap; | |
| 3007 | ||
| 3008 | va_start (ap, note_type); | |
| 75cd47ed | 3009 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
3010 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 3011 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 3012 | va_end (ap); | |
| 3013 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3014 | "CORE", note_type, data, sizeof (data)); | |
| 3015 | } | |
| 3016 | ||
| 3017 | case NT_PRSTATUS: | |
| 3018 | { | |
| 3019 | char data[504]; | |
| 3020 | va_list ap; | |
| 3021 | long pid; | |
| 3022 | int cursig; | |
| 3023 | const void *greg; | |
| 3024 | ||
| 3025 | va_start (ap, note_type); | |
| 3026 | memset (data, 0, 112); | |
| 3027 | pid = va_arg (ap, long); | |
| 3028 | bfd_put_32 (abfd, pid, data + 32); | |
| 3029 | cursig = va_arg (ap, int); | |
| 3030 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3031 | greg = va_arg (ap, const void *); | |
| 3032 | memcpy (data + 112, greg, 384); | |
| 3033 | memset (data + 496, 0, 8); | |
| 3034 | va_end (ap); | |
| 3035 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3036 | "CORE", note_type, data, sizeof (data)); | |
| 3037 | } | |
| 3038 | } | |
| 3039 | } | |
| 3040 | ||
| 5d35169e AM |
3041 | /* Add extra PPC sections. */ |
| 3042 | ||
| b35d266b | 3043 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3044 | { |
| 07d6d2b8 AM |
3045 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3046 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3047 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 AM |
3048 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 3049 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3050 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 | 3051 | { NULL, 0, 0, 0, 0 } |
| 5d35169e AM |
3052 | }; |
| 3053 | ||
| 7c8fe5c4 AM |
3054 | enum _ppc64_sec_type { |
| 3055 | sec_normal = 0, | |
| 3056 | sec_opd = 1, | |
| 3057 | sec_toc = 2 | |
| 3058 | }; | |
| 3059 | ||
| f0abc2a1 AM |
3060 | struct _ppc64_elf_section_data |
| 3061 | { | |
| 3062 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3063 | |
| f0abc2a1 AM |
3064 | union |
| 3065 | { | |
| 51aecdc5 AM |
3066 | /* An array with one entry for each opd function descriptor, |
| 3067 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3068 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3069 | struct _opd_sec_data |
| 3070 | { | |
| 3071 | /* Points to the function code section for local opd entries. */ | |
| 3072 | asection **func_sec; | |
| 3073 | ||
| 3074 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3075 | long *adjust; | |
| 3076 | } opd; | |
| 7c8fe5c4 | 3077 | |
| 3a71aa26 AM |
3078 | /* An array for toc sections, indexed by offset/8. */ |
| 3079 | struct _toc_sec_data | |
| 3080 | { | |
| 3081 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3082 | unsigned *symndx; | |
| 3083 | ||
| 3084 | /* And the relocation addend. */ | |
| 3085 | bfd_vma *add; | |
| 3086 | } toc; | |
| 7c8fe5c4 AM |
3087 | } u; |
| 3088 | ||
| 3089 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3090 | |
| 7c8fe5c4 AM |
3091 | /* Flag set when small branches are detected. Used to |
| 3092 | select suitable defaults for the stub group size. */ | |
| 3093 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3094 | }; |
| 3095 | ||
| 3096 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3097 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3098 | |
| 3099 | static bfd_boolean | |
| 4ce794b7 | 3100 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3101 | { |
| f592407e AM |
3102 | if (!sec->used_by_bfd) |
| 3103 | { | |
| 3104 | struct _ppc64_elf_section_data *sdata; | |
| 3105 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3106 | |
| f592407e AM |
3107 | sdata = bfd_zalloc (abfd, amt); |
| 3108 | if (sdata == NULL) | |
| 3109 | return FALSE; | |
| 3110 | sec->used_by_bfd = sdata; | |
| 3111 | } | |
| f0abc2a1 AM |
3112 | |
| 3113 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3114 | } | |
| 4025353c | 3115 | |
| 74f0fb50 | 3116 | static struct _opd_sec_data * |
| 4025353c AM |
3117 | get_opd_info (asection * sec) |
| 3118 | { | |
| 3119 | if (sec != NULL | |
| 3120 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3121 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3122 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3123 | return NULL; |
| 3124 | } | |
| 90e3cdf2 JJ |
3125 | \f |
| 3126 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3127 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3128 | static asection *synthetic_opd; |
| 90e3cdf2 | 3129 | |
| 699733f6 | 3130 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3131 | |
| 3132 | static int | |
| 3133 | compare_symbols (const void *ap, const void *bp) | |
| 3134 | { | |
| 3135 | const asymbol *a = * (const asymbol **) ap; | |
| 3136 | const asymbol *b = * (const asymbol **) bp; | |
| 3137 | ||
| 699733f6 AM |
3138 | /* Section symbols first. */ |
| 3139 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3140 | return -1; |
| 699733f6 | 3141 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3142 | return 1; |
| 3143 | ||
| 699733f6 | 3144 | /* then .opd symbols. */ |
| cd285db5 AM |
3145 | if (synthetic_opd != NULL) |
| 3146 | { | |
| 3147 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3148 | && strcmp (b->section->name, ".opd") != 0) | |
| 3149 | return -1; | |
| 3150 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3151 | && strcmp (b->section->name, ".opd") == 0) | |
| 3152 | return 1; | |
| 3153 | } | |
| 90e3cdf2 | 3154 | |
| 699733f6 | 3155 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3156 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3157 | == (SEC_CODE | SEC_ALLOC) | |
| 3158 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3159 | != (SEC_CODE | SEC_ALLOC)) | |
| 3160 | return -1; | |
| 3161 | ||
| 3162 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3163 | != (SEC_CODE | SEC_ALLOC) | |
| 3164 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3165 | == (SEC_CODE | SEC_ALLOC)) | |
| 3166 | return 1; | |
| 3167 | ||
| 3168 | if (synthetic_relocatable) | |
| 3169 | { | |
| 3170 | if (a->section->id < b->section->id) | |
| 3171 | return -1; | |
| 3172 | ||
| 3173 | if (a->section->id > b->section->id) | |
| 3174 | return 1; | |
| 3175 | } | |
| 3176 | ||
| 3177 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3178 | return -1; | |
| 3179 | ||
| 3180 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3181 | return 1; | |
| 3182 | ||
| 4d35a0aa AM |
3183 | /* For syms with the same value, prefer strong dynamic global function |
| 3184 | syms over other syms. */ | |
| 3185 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3186 | return -1; | |
| 3187 | ||
| 3188 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3189 | return 1; | |
| 3190 | ||
| 3191 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3192 | return -1; | |
| 3193 | ||
| 3194 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3195 | return 1; | |
| 3196 | ||
| 3197 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3198 | return -1; | |
| 3199 | ||
| 3200 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3201 | return 1; | |
| 3202 | ||
| 3203 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3204 | return -1; | |
| 3205 | ||
| 3206 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3207 | return 1; | |
| 3208 | ||
| aaed6f5b | 3209 | return a > b; |
| 90e3cdf2 JJ |
3210 | } |
| 3211 | ||
| 699733f6 | 3212 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3213 | |
| 699733f6 | 3214 | static asymbol * |
| 7292b3ac | 3215 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3216 | { |
| 699733f6 | 3217 | long mid; |
| 90e3cdf2 | 3218 | |
| 7292b3ac | 3219 | if (id == (unsigned) -1) |
| 699733f6 AM |
3220 | { |
| 3221 | while (lo < hi) | |
| 3222 | { | |
| 3223 | mid = (lo + hi) >> 1; | |
| 3224 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3225 | lo = mid + 1; | |
| 3226 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3227 | hi = mid; | |
| 3228 | else | |
| 3229 | return syms[mid]; | |
| 3230 | } | |
| 3231 | } | |
| 3232 | else | |
| 3233 | { | |
| 3234 | while (lo < hi) | |
| 3235 | { | |
| 3236 | mid = (lo + hi) >> 1; | |
| 3237 | if (syms[mid]->section->id < id) | |
| 3238 | lo = mid + 1; | |
| 3239 | else if (syms[mid]->section->id > id) | |
| 3240 | hi = mid; | |
| 3241 | else if (syms[mid]->value < value) | |
| 3242 | lo = mid + 1; | |
| 3243 | else if (syms[mid]->value > value) | |
| 3244 | hi = mid; | |
| 3245 | else | |
| 3246 | return syms[mid]; | |
| 3247 | } | |
| 3248 | } | |
| 3249 | return NULL; | |
| 90e3cdf2 JJ |
3250 | } |
| 3251 | ||
| 468392fb AM |
3252 | static bfd_boolean |
| 3253 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3254 | { | |
| 3255 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3256 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3257 | && section->vma <= vma | |
| 3258 | && vma < section->vma + section->size); | |
| 3259 | } | |
| 3260 | ||
| 699733f6 | 3261 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3262 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3263 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3264 | |
| 3265 | static long | |
| a7535cf3 AM |
3266 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3267 | long static_count, asymbol **static_syms, | |
| 3268 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3269 | asymbol **ret) |
| 90e3cdf2 JJ |
3270 | { |
| 3271 | asymbol *s; | |
| 0ccf57bd | 3272 | size_t i, j, count; |
| 90e3cdf2 | 3273 | char *names; |
| 0ccf57bd | 3274 | size_t symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3275 | asection *opd = NULL; |
| 90e3cdf2 | 3276 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3277 | asymbol **syms; |
| ee67d69a | 3278 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3279 | |
| 3280 | *ret = NULL; | |
| 3281 | ||
| ee67d69a AM |
3282 | if (abi < 2) |
| 3283 | { | |
| 3284 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3285 | if (opd == NULL && abi == 1) | |
| 3286 | return 0; | |
| 3287 | } | |
| 90e3cdf2 | 3288 | |
| a5259595 AM |
3289 | syms = NULL; |
| 3290 | codesecsym = 0; | |
| 3291 | codesecsymend = 0; | |
| 3292 | secsymend = 0; | |
| 3293 | opdsymend = 0; | |
| 3294 | symcount = 0; | |
| 3295 | if (opd != NULL) | |
| c9727e01 | 3296 | { |
| a5259595 AM |
3297 | symcount = static_count; |
| 3298 | if (!relocatable) | |
| 3299 | symcount += dyn_count; | |
| 3300 | if (symcount == 0) | |
| 3301 | return 0; | |
| c9727e01 | 3302 | |
| a5259595 AM |
3303 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3304 | if (syms == NULL) | |
| 3305 | return -1; | |
| 90e3cdf2 | 3306 | |
| a5259595 AM |
3307 | if (!relocatable && static_count != 0 && dyn_count != 0) |
| 3308 | { | |
| 3309 | /* Use both symbol tables. */ | |
| 3310 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3311 | memcpy (syms + static_count, dyn_syms, | |
| 3312 | (dyn_count + 1) * sizeof (*syms)); | |
| 3313 | } | |
| 3314 | else if (!relocatable && static_count == 0) | |
| 3315 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3316 | else | |
| 3317 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 90e3cdf2 | 3318 | |
| 0ccf57bd AM |
3319 | /* Trim uninteresting symbols. Interesting symbols are section, |
| 3320 | function, and notype symbols. */ | |
| 3321 | for (i = 0, j = 0; i < symcount; ++i) | |
| 3322 | if ((syms[i]->flags & (BSF_FILE | BSF_OBJECT | BSF_THREAD_LOCAL | |
| 3323 | | BSF_RELC | BSF_SRELC)) == 0) | |
| 3324 | syms[j++] = syms[i]; | |
| 3325 | symcount = j; | |
| 3326 | ||
| a5259595 AM |
3327 | synthetic_relocatable = relocatable; |
| 3328 | synthetic_opd = opd; | |
| 3329 | qsort (syms, symcount, sizeof (*syms), compare_symbols); | |
| 90e3cdf2 | 3330 | |
| a5259595 AM |
3331 | if (!relocatable && symcount > 1) |
| 3332 | { | |
| a5259595 AM |
3333 | /* Trim duplicate syms, since we may have merged the normal and |
| 3334 | dynamic symbols. Actually, we only care about syms that have | |
| 3335 | different values, so trim any with the same value. */ | |
| 3336 | for (i = 1, j = 1; i < symcount; ++i) | |
| 3337 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3338 | != syms[i]->value + syms[i]->section->vma) | |
| 3339 | syms[j++] = syms[i]; | |
| 3340 | symcount = j; | |
| 3341 | } | |
| 699733f6 | 3342 | |
| a5259595 AM |
3343 | i = 0; |
| 3344 | /* Note that here and in compare_symbols we can't compare opd and | |
| 3345 | sym->section directly. With separate debug info files, the | |
| 3346 | symbols will be extracted from the debug file while abfd passed | |
| 3347 | to this function is the real binary. */ | |
| 0ccf57bd | 3348 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| a5259595 AM |
3349 | ++i; |
| 3350 | codesecsym = i; | |
| 3351 | ||
| 3352 | for (; i < symcount; ++i) | |
| 3353 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | |
| 3354 | | SEC_THREAD_LOCAL)) | |
| 3355 | != (SEC_CODE | SEC_ALLOC)) | |
| 3356 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3357 | break; | |
| 3358 | codesecsymend = i; | |
| 3359 | ||
| 3360 | for (; i < symcount; ++i) | |
| 3361 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3362 | break; | |
| 3363 | secsymend = i; | |
| 3364 | ||
| 3365 | for (; i < symcount; ++i) | |
| 3366 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3367 | break; | |
| 3368 | opdsymend = i; | |
| 3369 | ||
| 3370 | for (; i < symcount; ++i) | |
| 3371 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3372 | != (SEC_CODE | SEC_ALLOC)) | |
| 3373 | break; | |
| 3374 | symcount = i; | |
| 3375 | } | |
| c9727e01 | 3376 | count = 0; |
| 90e3cdf2 | 3377 | |
| 699733f6 | 3378 | if (relocatable) |
| 90e3cdf2 | 3379 | { |
| 699733f6 AM |
3380 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3381 | arelent *r; | |
| 3382 | size_t size; | |
| 0ccf57bd | 3383 | size_t relcount; |
| 90e3cdf2 | 3384 | |
| 468392fb AM |
3385 | if (opdsymend == secsymend) |
| 3386 | goto done; | |
| 3387 | ||
| 699733f6 | 3388 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3389 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3390 | if (relcount == 0) |
| c9727e01 | 3391 | goto done; |
| 90e3cdf2 | 3392 | |
| 7356fed5 AM |
3393 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3394 | { | |
| 3395 | count = -1; | |
| 3396 | goto done; | |
| 3397 | } | |
| 3398 | ||
| 699733f6 | 3399 | size = 0; |
| 595da8c5 | 3400 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3401 | { |
| 3402 | asymbol *sym; | |
| 90e3cdf2 | 3403 | |
| 595da8c5 | 3404 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3405 | && r->address < syms[i]->value + opd->vma) |
| 3406 | ++r; | |
| 90e3cdf2 | 3407 | |
| 595da8c5 | 3408 | if (r == opd->relocation + relcount) |
| 699733f6 | 3409 | break; |
| 90e3cdf2 | 3410 | |
| 699733f6 AM |
3411 | if (r->address != syms[i]->value + opd->vma) |
| 3412 | continue; | |
| 90e3cdf2 | 3413 | |
| 699733f6 AM |
3414 | if (r->howto->type != R_PPC64_ADDR64) |
| 3415 | continue; | |
| 90e3cdf2 | 3416 | |
| 699733f6 AM |
3417 | sym = *r->sym_ptr_ptr; |
| 3418 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3419 | sym->section->id, sym->value + r->addend)) | |
| 3420 | { | |
| 3421 | ++count; | |
| 3422 | size += sizeof (asymbol); | |
| 3423 | size += strlen (syms[i]->name) + 2; | |
| 3424 | } | |
| 3425 | } | |
| 90e3cdf2 | 3426 | |
| c4b0b099 AM |
3427 | if (size == 0) |
| 3428 | goto done; | |
| 699733f6 AM |
3429 | s = *ret = bfd_malloc (size); |
| 3430 | if (s == NULL) | |
| 3431 | { | |
| 7356fed5 | 3432 | count = -1; |
| c9727e01 | 3433 | goto done; |
| 699733f6 | 3434 | } |
| 90e3cdf2 | 3435 | |
| 699733f6 | 3436 | names = (char *) (s + count); |
| 90e3cdf2 | 3437 | |
| 595da8c5 | 3438 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3439 | { |
| 699733f6 | 3440 | asymbol *sym; |
| 90e3cdf2 | 3441 | |
| 595da8c5 | 3442 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3443 | && r->address < syms[i]->value + opd->vma) |
| 3444 | ++r; | |
| 90e3cdf2 | 3445 | |
| 595da8c5 | 3446 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3447 | break; |
| 3448 | ||
| 3449 | if (r->address != syms[i]->value + opd->vma) | |
| 3450 | continue; | |
| 3451 | ||
| 3452 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3453 | continue; | |
| 90e3cdf2 | 3454 | |
| 699733f6 AM |
3455 | sym = *r->sym_ptr_ptr; |
| 3456 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3457 | sym->section->id, sym->value + r->addend)) | |
| 3458 | { | |
| 3459 | size_t len; | |
| 3460 | ||
| 3461 | *s = *syms[i]; | |
| 6ba2a415 | 3462 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3463 | s->section = sym->section; |
| 3464 | s->value = sym->value + r->addend; | |
| 3465 | s->name = names; | |
| 3466 | *names++ = '.'; | |
| 3467 | len = strlen (syms[i]->name); | |
| 3468 | memcpy (names, syms[i]->name, len + 1); | |
| 3469 | names += len + 1; | |
| 6f610d07 UW |
3470 | /* Have udata.p point back to the original symbol this |
| 3471 | synthetic symbol was derived from. */ | |
| 3472 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3473 | s++; |
| 3474 | } | |
| 3475 | } | |
| 3476 | } | |
| 3477 | else | |
| 90e3cdf2 | 3478 | { |
| 468392fb | 3479 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3480 | bfd_byte *contents = NULL; |
| 699733f6 | 3481 | size_t size; |
| 0ccf57bd | 3482 | size_t plt_count = 0; |
| 468392fb AM |
3483 | bfd_vma glink_vma = 0, resolv_vma = 0; |
| 3484 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3485 | arelent *p; | |
| 90e3cdf2 | 3486 | |
| ee67d69a | 3487 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3488 | { |
| c4b0b099 AM |
3489 | free_contents_and_exit_err: |
| 3490 | count = -1; | |
| ee67d69a | 3491 | free_contents_and_exit: |
| 699733f6 | 3492 | if (contents) |
| ee67d69a | 3493 | free (contents); |
| c9727e01 | 3494 | goto done; |
| 699733f6 | 3495 | } |
| 90e3cdf2 | 3496 | |
| 699733f6 AM |
3497 | size = 0; |
| 3498 | for (i = secsymend; i < opdsymend; ++i) | |
| 3499 | { | |
| 3500 | bfd_vma ent; | |
| 90e3cdf2 | 3501 | |
| 5ef11c02 AM |
3502 | /* Ignore bogus symbols. */ |
| 3503 | if (syms[i]->value > opd->size - 8) | |
| 3504 | continue; | |
| 3505 | ||
| 699733f6 AM |
3506 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3507 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3508 | { | |
| 3509 | ++count; | |
| 3510 | size += sizeof (asymbol); | |
| 3511 | size += strlen (syms[i]->name) + 2; | |
| 3512 | } | |
| 3513 | } | |
| 90e3cdf2 | 3514 | |
| 468392fb | 3515 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3516 | if (dyn_count != 0 |
| 3517 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3518 | { |
| 3519 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3520 | size_t extdynsize; | |
| 3521 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3522 | ||
| 3523 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3524 | goto free_contents_and_exit_err; |
| 468392fb AM |
3525 | |
| 3526 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3527 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3528 | ||
| 3529 | extdyn = dynbuf; | |
| 3530 | extdynend = extdyn + dynamic->size; | |
| 3531 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3532 | { | |
| 3533 | Elf_Internal_Dyn dyn; | |
| 3534 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3535 | ||
| 3536 | if (dyn.d_tag == DT_NULL) | |
| 3537 | break; | |
| 3538 | ||
| 3539 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3540 | { | |
| 9e390558 AM |
3541 | /* The first glink stub starts at DT_PPC64_GLINK plus 32. |
| 3542 | See comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3543 | glink_vma = dyn.d_un.d_val + 8 * 4; | |
| 468392fb AM |
3544 | /* The .glink section usually does not survive the final |
| 3545 | link; search for the section (usually .text) where the | |
| 3546 | glink stubs now reside. */ | |
| 3547 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3548 | &glink_vma); | |
| 3549 | break; | |
| 3550 | } | |
| 3551 | } | |
| 3552 | ||
| 3553 | free (dynbuf); | |
| 3554 | } | |
| 3555 | ||
| 3556 | if (glink != NULL) | |
| 3557 | { | |
| 3558 | /* Determine __glink trampoline by reading the relative branch | |
| 3559 | from the first glink stub. */ | |
| 3560 | bfd_byte buf[4]; | |
| b9e5796b AM |
3561 | unsigned int off = 0; |
| 3562 | ||
| 3563 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3564 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3565 | { |
| 3566 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3567 | insn ^= B_DOT; | |
| 3568 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3569 | { |
| 3570 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3571 | break; | |
| 3572 | } | |
| 3573 | off += 4; | |
| 3574 | if (off > 4) | |
| 3575 | break; | |
| 468392fb AM |
3576 | } |
| 3577 | ||
| 3578 | if (resolv_vma) | |
| 3579 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3580 | |
| 066ee829 AM |
3581 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3582 | if (relplt != NULL) | |
| 3583 | { | |
| 3584 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3585 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3586 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3587 | |
| 066ee829 AM |
3588 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3589 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3590 | |
| 066ee829 AM |
3591 | p = relplt->relocation; |
| 3592 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3593 | { |
| 3594 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3595 | if (p->addend != 0) | |
| 3596 | size += sizeof ("+0x") - 1 + 16; | |
| 3597 | } | |
| 066ee829 | 3598 | } |
| 468392fb AM |
3599 | } |
| 3600 | ||
| c4b0b099 AM |
3601 | if (size == 0) |
| 3602 | goto free_contents_and_exit; | |
| 699733f6 AM |
3603 | s = *ret = bfd_malloc (size); |
| 3604 | if (s == NULL) | |
| c4b0b099 | 3605 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3606 | |
| 468392fb | 3607 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3608 | |
| 699733f6 | 3609 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3610 | { |
| 699733f6 | 3611 | bfd_vma ent; |
| 90e3cdf2 | 3612 | |
| 5ef11c02 AM |
3613 | if (syms[i]->value > opd->size - 8) |
| 3614 | continue; | |
| 3615 | ||
| 699733f6 AM |
3616 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3617 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3618 | { |
| 0ccf57bd | 3619 | size_t lo, hi; |
| 699733f6 | 3620 | size_t len; |
| c9727e01 | 3621 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3622 | |
| 699733f6 AM |
3623 | *s = *syms[i]; |
| 3624 | lo = codesecsym; | |
| 3625 | hi = codesecsymend; | |
| 3626 | while (lo < hi) | |
| 3627 | { | |
| 0ccf57bd | 3628 | size_t mid = (lo + hi) >> 1; |
| 699733f6 AM |
3629 | if (syms[mid]->section->vma < ent) |
| 3630 | lo = mid + 1; | |
| 3631 | else if (syms[mid]->section->vma > ent) | |
| 3632 | hi = mid; | |
| 3633 | else | |
| c9727e01 AM |
3634 | { |
| 3635 | sec = syms[mid]->section; | |
| 3636 | break; | |
| 3637 | } | |
| 699733f6 AM |
3638 | } |
| 3639 | ||
| c9727e01 | 3640 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3641 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3642 | |
| 3643 | for (; sec != NULL; sec = sec->next) | |
| 3644 | { | |
| 3645 | if (sec->vma > ent) | |
| 3646 | break; | |
| 63524580 JK |
3647 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3648 | info file. */ | |
| 3649 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3650 | break; |
| 3651 | if ((sec->flags & SEC_CODE) != 0) | |
| 3652 | s->section = sec; | |
| 3653 | } | |
| 6ba2a415 | 3654 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3655 | s->value = ent - s->section->vma; |
| 3656 | s->name = names; | |
| 3657 | *names++ = '.'; | |
| 3658 | len = strlen (syms[i]->name); | |
| 3659 | memcpy (names, syms[i]->name, len + 1); | |
| 3660 | names += len + 1; | |
| 6f610d07 UW |
3661 | /* Have udata.p point back to the original symbol this |
| 3662 | synthetic symbol was derived from. */ | |
| 3663 | s->udata.p = syms[i]; | |
| 699733f6 | 3664 | s++; |
| 90e3cdf2 | 3665 | } |
| 90e3cdf2 | 3666 | } |
| 699733f6 | 3667 | free (contents); |
| 468392fb AM |
3668 | |
| 3669 | if (glink != NULL && relplt != NULL) | |
| 3670 | { | |
| 3671 | if (resolv_vma) | |
| 3672 | { | |
| 3673 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3674 | memset (s, 0, sizeof *s); |
| 468392fb | 3675 | s->the_bfd = abfd; |
| 6ba2a415 | 3676 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3677 | s->section = glink; |
| 3678 | s->value = resolv_vma - glink->vma; | |
| 3679 | s->name = names; | |
| 3680 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3681 | names += sizeof ("__glink_PLTresolve"); | |
| 3682 | s++; | |
| 3683 | count++; | |
| 3684 | } | |
| 3685 | ||
| 3686 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3687 | stub rather than on the glink branch table entry. The | |
| 3688 | objdump disassembler would then use a sensible symbol | |
| 3689 | name on plt calls. The difficulty in doing so is | |
| 3690 | a) finding the stubs, and, | |
| 3691 | b) matching stubs against plt entries, and, | |
| 3692 | c) there can be multiple stubs for a given plt entry. | |
| 3693 | ||
| 3694 | Solving (a) could be done by code scanning, but older | |
| 3695 | ppc64 binaries used different stubs to current code. | |
| 3696 | (b) is the tricky one since you need to known the toc | |
| 3697 | pointer for at least one function that uses a pic stub to | |
| 3698 | be able to calculate the plt address referenced. | |
| 3699 | (c) means gdb would need to set multiple breakpoints (or | |
| 3700 | find the glink branch itself) when setting breakpoints | |
| 3701 | for pending shared library loads. */ | |
| 3702 | p = relplt->relocation; | |
| 3703 | for (i = 0; i < plt_count; i++, p++) | |
| 3704 | { | |
| 3705 | size_t len; | |
| 3706 | ||
| 3707 | *s = **p->sym_ptr_ptr; | |
| 3708 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3709 | we are defining a symbol, ensure one of them is set. */ | |
| 3710 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3711 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3712 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3713 | s->section = glink; |
| 3714 | s->value = glink_vma - glink->vma; | |
| 3715 | s->name = names; | |
| 3716 | s->udata.p = NULL; | |
| 3717 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3718 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3719 | names += len; | |
| e054468f AM |
3720 | if (p->addend != 0) |
| 3721 | { | |
| 3722 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3723 | names += sizeof ("+0x") - 1; | |
| 3724 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3725 | names += strlen (names); | |
| 3726 | } | |
| 468392fb AM |
3727 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3728 | names += sizeof ("@plt"); | |
| 3729 | s++; | |
| b9e5796b AM |
3730 | if (abi < 2) |
| 3731 | { | |
| 3732 | glink_vma += 8; | |
| 3733 | if (i >= 0x8000) | |
| 3734 | glink_vma += 4; | |
| 3735 | } | |
| 3736 | else | |
| 468392fb AM |
3737 | glink_vma += 4; |
| 3738 | } | |
| 3739 | count += plt_count; | |
| 3740 | } | |
| 90e3cdf2 JJ |
3741 | } |
| 3742 | ||
| c9727e01 | 3743 | done: |
| a7535cf3 | 3744 | free (syms); |
| 90e3cdf2 JJ |
3745 | return count; |
| 3746 | } | |
| 5bd4f169 | 3747 | \f |
| 65f38f15 AM |
3748 | /* The following functions are specific to the ELF linker, while |
| 3749 | functions above are used generally. Those named ppc64_elf_* are | |
| 3750 | called by the main ELF linker code. They appear in this file more | |
| 3751 | or less in the order in which they are called. eg. | |
| 3752 | ppc64_elf_check_relocs is called early in the link process, | |
| 3753 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3754 | called. |
| 3755 | ||
| 3756 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3757 | functions have both a function code symbol and a function descriptor | |
| 3758 | symbol. A call to foo in a relocatable object file looks like: | |
| 3759 | ||
| 3760 | . .text | |
| 3761 | . x: | |
| 3762 | . bl .foo | |
| 3763 | . nop | |
| 3764 | ||
| 3765 | The function definition in another object file might be: | |
| 3766 | ||
| 3767 | . .section .opd | |
| 3768 | . foo: .quad .foo | |
| 3769 | . .quad .TOC.@tocbase | |
| 3770 | . .quad 0 | |
| 3771 | . | |
| 3772 | . .text | |
| 3773 | . .foo: blr | |
| 3774 | ||
| 3775 | When the linker resolves the call during a static link, the branch | |
| 3776 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3777 | If the function definition is in a shared library, things are a little | |
| 3778 | different: The call goes via a plt call stub, the opd information gets | |
| 3779 | copied to the plt, and the linker patches the nop. | |
| 3780 | ||
| 3781 | . x: | |
| 3782 | . bl .foo_stub | |
| 3783 | . ld 2,40(1) | |
| 3784 | . | |
| 3785 | . | |
| 3786 | . .foo_stub: | |
| 71a39c98 AM |
3787 | . std 2,40(1) # in practice, the call stub |
| 3788 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3789 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3790 | . ld 12,0(11) | |
| 3791 | . ld 2,8(11) | |
| 3792 | . mtctr 12 | |
| 3793 | . ld 11,16(11) | |
| e86ce104 AM |
3794 | . bctr |
| 3795 | . | |
| 3796 | . .section .plt | |
| 3797 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3798 | ||
| 3799 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3800 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3801 | copying. | |
| 3802 | ||
| 3803 | What are the difficulties here? Well, firstly, the relocations | |
| 3804 | examined by the linker in check_relocs are against the function code | |
| 3805 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3806 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3807 | to carefully copy dynamic link information from one symbol to the other. | |
| 3808 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3809 | symbol as is normal for most other backends. We need foo dynamic | |
| 3810 | instead, at least for an application final link. However, when | |
| 3811 | creating a shared library containing foo, we need to have both symbols | |
| 3812 | dynamic so that references to .foo are satisfied during the early | |
| 3813 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3814 | definition from some other object, eg. a static library. |
| 3815 | ||
| 3816 | Update: As of August 2004, we support a new convention. Function | |
| 3817 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3818 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3819 | |
| 7c8bbca5 AM |
3820 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3821 | function selects those that must be copied when linking a shared | |
| 3822 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3823 | |
| 1d483afe AM |
3824 | static int |
| 3825 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3826 | enum elf_ppc64_reloc_type r_type) | |
| 3827 | { | |
| 3828 | switch (r_type) | |
| 3829 | { | |
| 3830 | default: | |
| 7c8bbca5 AM |
3831 | /* Only relative relocs can be resolved when the object load |
| 3832 | address isn't fixed. DTPREL64 is excluded because the | |
| 3833 | dynamic linker needs to differentiate global dynamic from | |
| 3834 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3835 | return 1; |
| 3836 | ||
| 3837 | case R_PPC64_REL32: | |
| 3838 | case R_PPC64_REL64: | |
| 3839 | case R_PPC64_REL30: | |
| 3840 | return 0; | |
| 3841 | ||
| 3842 | case R_PPC64_TPREL16: | |
| 3843 | case R_PPC64_TPREL16_LO: | |
| 3844 | case R_PPC64_TPREL16_HI: | |
| 3845 | case R_PPC64_TPREL16_HA: | |
| 3846 | case R_PPC64_TPREL16_DS: | |
| 3847 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3848 | case R_PPC64_TPREL16_HIGH: |
| 3849 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3850 | case R_PPC64_TPREL16_HIGHER: |
| 3851 | case R_PPC64_TPREL16_HIGHERA: | |
| 3852 | case R_PPC64_TPREL16_HIGHEST: | |
| 3853 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3854 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3855 | /* These relocations are relative but in a shared library the |
| 3856 | linker doesn't know the thread pointer base. */ | |
| 3857 | return bfd_link_dll (info); | |
| 1d483afe AM |
3858 | } |
| 3859 | } | |
| 65f38f15 | 3860 | |
| f4656909 AM |
3861 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3862 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3863 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3864 | shared lib. With code that gcc generates, it's vital that this be |
| 3865 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3866 | the address of a function descriptor, which resides in the .opd | |
| 3867 | section. gcc uses the descriptor directly rather than going via the | |
| 3868 | GOT as some other ABI's do, which means that initialized function | |
| 3869 | pointers must reference the descriptor. Thus, a function pointer | |
| 3870 | initialized to the address of a function in a shared library will | |
| 3871 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3872 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3873 | presents a problem as a plt entry for that function is also |
| 3874 | initialized from the function descriptor symbol and the copy reloc | |
| 3875 | may not be initialized first. */ | |
| a23b6845 | 3876 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3877 | |
| 721956f4 | 3878 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3879 | string. */ |
| 3880 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3881 | |
| 3882 | /* Linker stubs. | |
| 3883 | ppc_stub_long_branch: | |
| 3884 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3885 | destination, but a 24 bit branch in a stub section will reach. | |
| 3886 | . b dest | |
| 3887 | ||
| 3888 | ppc_stub_plt_branch: | |
| 3889 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3890 | reach its destination. | |
| 71a39c98 AM |
3891 | . addis %r11,%r2,xxx@toc@ha |
| 3892 | . ld %r12,xxx@toc@l(%r11) | |
| 3893 | . mtctr %r12 | |
| 721956f4 AM |
3894 | . bctr |
| 3895 | ||
| 3896 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3897 | Used to call a function in a shared library. If it so happens that |
| 3898 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3899 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3900 | . std %r2,40(%r1) |
| 71a39c98 AM |
3901 | . addis %r11,%r2,xxx@toc@ha |
| 3902 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3903 | . mtctr %r12 | |
| 3904 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3905 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3906 | . bctr |
| ad8e1ba5 AM |
3907 | |
| 3908 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3909 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3910 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3911 | . std %r2,40(%r1) | |
| 3912 | . addis %r2,%r2,off@ha | |
| 3913 | . addi %r2,%r2,off@l | |
| 3914 | . b dest | |
| 3915 | ||
| 3916 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3917 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3918 | . addis %r11,%r2,xxx@toc@ha |
| 3919 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3920 | . addis %r2,%r2,off@ha |
| 3921 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3922 | . mtctr %r12 |
| ad8e1ba5 | 3923 | . bctr |
| ac2df442 AM |
3924 | |
| 3925 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3926 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3927 | */ |
| 3928 | ||
| 3929 | enum ppc_stub_type { | |
| 3930 | ppc_stub_none, | |
| 3931 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3932 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3933 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3934 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3935 | ppc_stub_plt_call, |
| 7341d5e2 | 3936 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3937 | ppc_stub_global_entry, |
| 3938 | ppc_stub_save_res | |
| 721956f4 AM |
3939 | }; |
| 3940 | ||
| 6f20ed8a AM |
3941 | /* Information on stub grouping. */ |
| 3942 | struct map_stub | |
| 3943 | { | |
| 3944 | /* The stub section. */ | |
| 3945 | asection *stub_sec; | |
| 3946 | /* This is the section to which stubs in the group will be attached. */ | |
| 3947 | asection *link_sec; | |
| a4b6fadd AM |
3948 | /* Next group. */ |
| 3949 | struct map_stub *next; | |
| 3950 | /* Whether to emit a copy of register save/restore functions in this | |
| 3951 | group. */ | |
| 3952 | int needs_save_res; | |
| d4aaa2a0 AM |
3953 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 3954 | or -1u if no such stub with bctrl exists. */ | |
| 3955 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
3956 | }; |
| 3957 | ||
| 721956f4 AM |
3958 | struct ppc_stub_hash_entry { |
| 3959 | ||
| 3960 | /* Base hash table entry structure. */ | |
| 3961 | struct bfd_hash_entry root; | |
| 3962 | ||
| ad8e1ba5 AM |
3963 | enum ppc_stub_type stub_type; |
| 3964 | ||
| 6f20ed8a AM |
3965 | /* Group information. */ |
| 3966 | struct map_stub *group; | |
| 721956f4 AM |
3967 | |
| 3968 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3969 | bfd_vma stub_offset; | |
| 3970 | ||
| 3971 | /* Given the symbol's value and its section we can determine its final | |
| 3972 | value when building the stubs (so the stub knows where to jump. */ | |
| 3973 | bfd_vma target_value; | |
| 3974 | asection *target_section; | |
| 3975 | ||
| 721956f4 AM |
3976 | /* The symbol table entry, if any, that this was derived from. */ |
| 3977 | struct ppc_link_hash_entry *h; | |
| e054468f | 3978 | struct plt_entry *plt_ent; |
| 721956f4 | 3979 | |
| 6911b7dc AM |
3980 | /* Symbol st_other. */ |
| 3981 | unsigned char other; | |
| 721956f4 AM |
3982 | }; |
| 3983 | ||
| 3984 | struct ppc_branch_hash_entry { | |
| 3985 | ||
| 3986 | /* Base hash table entry structure. */ | |
| 3987 | struct bfd_hash_entry root; | |
| 3988 | ||
| c456f082 | 3989 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3990 | unsigned int offset; |
| 3991 | ||
| 3992 | /* Generation marker. */ | |
| 3993 | unsigned int iter; | |
| 3994 | }; | |
| 65f38f15 | 3995 | |
| 19e08130 AM |
3996 | /* Used to track dynamic relocations for local symbols. */ |
| 3997 | struct ppc_dyn_relocs | |
| 3998 | { | |
| 3999 | struct ppc_dyn_relocs *next; | |
| 4000 | ||
| 4001 | /* The input section of the reloc. */ | |
| 4002 | asection *sec; | |
| 4003 | ||
| 4004 | /* Total number of relocs copied for the input section. */ | |
| 4005 | unsigned int count : 31; | |
| 4006 | ||
| 4007 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 4008 | unsigned int ifunc : 1; | |
| 4009 | }; | |
| 4010 | ||
| 65f38f15 AM |
4011 | struct ppc_link_hash_entry |
| 4012 | { | |
| 4013 | struct elf_link_hash_entry elf; | |
| 4014 | ||
| b3fac117 AM |
4015 | union { |
| 4016 | /* A pointer to the most recently used stub hash entry against this | |
| 4017 | symbol. */ | |
| 4018 | struct ppc_stub_hash_entry *stub_cache; | |
| 4019 | ||
| 4020 | /* A pointer to the next symbol starting with a '.' */ | |
| 4021 | struct ppc_link_hash_entry *next_dot_sym; | |
| 4022 | } u; | |
| 721956f4 | 4023 | |
| 65f38f15 | 4024 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4025 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4026 | |
| 721956f4 | 4027 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4028 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4029 | |
| e86ce104 AM |
4030 | /* Flag function code and descriptor symbols. */ |
| 4031 | unsigned int is_func:1; | |
| 4032 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4033 | unsigned int fake:1; |
| 411e1bfb | 4034 | |
| c5614fa4 AM |
4035 | /* Whether global opd/toc sym has been adjusted or not. |
| 4036 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4037 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4038 | unsigned int adjust_done:1; |
| 4039 | ||
| a4b6fadd AM |
4040 | /* Set if this is an out-of-line register save/restore function, |
| 4041 | with non-standard calling convention. */ | |
| 4042 | unsigned int save_res:1; | |
| 4043 | ||
| 8b5f1ed8 AM |
4044 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4045 | even when the duplicate symbol does not provide a definition. */ | |
| 4046 | unsigned int non_zero_localentry:1; | |
| 4047 | ||
| 411e1bfb | 4048 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
4049 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 4050 | corresponding relocs are encountered during check_relocs. | |
| 4051 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 4052 | indicate the corresponding GOT entry type is not needed. | |
| 4053 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 4054 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 4055 | just for convenience in distinguishing the two cases. */ | |
| 4056 | #define TLS_GD 1 /* GD reloc. */ | |
| 4057 | #define TLS_LD 2 /* LD reloc. */ | |
| 4058 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 4059 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4060 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4061 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4062 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4063 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4064 | unsigned char tls_mask; |
| 65f38f15 AM |
4065 | }; |
| 4066 | ||
| 4067 | /* ppc64 ELF linker hash table. */ | |
| 4068 | ||
| 4069 | struct ppc_link_hash_table | |
| 4070 | { | |
| 4071 | struct elf_link_hash_table elf; | |
| 4072 | ||
| 721956f4 AM |
4073 | /* The stub hash table. */ |
| 4074 | struct bfd_hash_table stub_hash_table; | |
| 4075 | ||
| 4076 | /* Another hash table for plt_branch stubs. */ | |
| 4077 | struct bfd_hash_table branch_hash_table; | |
| 4078 | ||
| 3b421ab3 AM |
4079 | /* Hash table for function prologue tocsave. */ |
| 4080 | htab_t tocsave_htab; | |
| 4081 | ||
| e7d1c40c AM |
4082 | /* Various options and other info passed from the linker. */ |
| 4083 | struct ppc64_elf_params *params; | |
| 721956f4 | 4084 | |
| 6f20ed8a AM |
4085 | /* The size of sec_info below. */ |
| 4086 | unsigned int sec_info_arr_size; | |
| 4087 | ||
| 4088 | /* Per-section array of extra section info. Done this way rather | |
| 4089 | than as part of ppc64_elf_section_data so we have the info for | |
| 4090 | non-ppc64 sections. */ | |
| 4091 | struct | |
| 4092 | { | |
| 4093 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4094 | bfd_vma toc_off; |
| 6f20ed8a AM |
4095 | |
| 4096 | union | |
| 4097 | { | |
| 4098 | /* The section group that this section belongs to. */ | |
| 4099 | struct map_stub *group; | |
| 4100 | /* A temp section list pointer. */ | |
| 4101 | asection *list; | |
| 4102 | } u; | |
| 4103 | } *sec_info; | |
| 721956f4 | 4104 | |
| a4b6fadd AM |
4105 | /* Linked list of groups. */ |
| 4106 | struct map_stub *group; | |
| 4107 | ||
| ad8e1ba5 AM |
4108 | /* Temp used when calculating TOC pointers. */ |
| 4109 | bfd_vma toc_curr; | |
| bf102f86 AM |
4110 | bfd *toc_bfd; |
| 4111 | asection *toc_first_sec; | |
| ad8e1ba5 | 4112 | |
| b3fac117 AM |
4113 | /* Used when adding symbols. */ |
| 4114 | struct ppc_link_hash_entry *dot_syms; | |
| 4115 | ||
| 33e44f2e | 4116 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4117 | asection *glink; |
| 9e390558 | 4118 | asection *global_entry; |
| 82bd7b59 | 4119 | asection *sfpr; |
| 4ce794b7 AM |
4120 | asection *brlt; |
| 4121 | asection *relbrlt; | |
| 58d180e8 | 4122 | asection *glink_eh_frame; |
| ec338859 | 4123 | |
| 8387904d AM |
4124 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4125 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4126 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4127 | |
| 927be08e AM |
4128 | /* The size of reliplt used by got entry relocs. */ |
| 4129 | bfd_size_type got_reli_size; | |
| 4130 | ||
| 9b5ecbd0 | 4131 | /* Statistics. */ |
| 7341d5e2 | 4132 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4133 | |
| ee75fd95 AM |
4134 | /* Number of stubs against global syms. */ |
| 4135 | unsigned long stub_globals; | |
| 4136 | ||
| ee67d69a AM |
4137 | /* Set if we're linking code with function descriptors. */ |
| 4138 | unsigned int opd_abi:1; | |
| 4139 | ||
| 4c52953f | 4140 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4141 | unsigned int do_multi_toc:1; |
| 4c52953f | 4142 | unsigned int multi_toc_needed:1; |
| 927be08e | 4143 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4144 | unsigned int do_toc_opt:1; |
| 4c52953f | 4145 | |
| 9a23f96e AM |
4146 | /* Set if tls optimization is enabled. */ |
| 4147 | unsigned int do_tls_opt:1; | |
| 4148 | ||
| 5d1634d7 | 4149 | /* Set on error. */ |
| 99877b66 | 4150 | unsigned int stub_error:1; |
| 721956f4 | 4151 | |
| 8c5b4e52 AM |
4152 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4153 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4154 | |
| 82e66161 AM |
4155 | /* Whether there exist local gnu indirect function resolvers, |
| 4156 | referenced by dynamic relocations. */ | |
| 4157 | unsigned int local_ifunc_resolver:1; | |
| 4158 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4159 | ||
| f378ab09 AM |
4160 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4161 | unsigned int has_plt_localentry0:1; | |
| 4162 | ||
| 721956f4 AM |
4163 | /* Incremented every time we size stubs. */ |
| 4164 | unsigned int stub_iteration; | |
| 5d1634d7 | 4165 | |
| 87d72d41 AM |
4166 | /* Small local sym cache. */ |
| 4167 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4168 | }; |
| 4169 | ||
| 4c52953f AM |
4170 | /* Rename some of the generic section flags to better document how they |
| 4171 | are used here. */ | |
| b0dddeec AM |
4172 | |
| 4173 | /* Nonzero if this section has TLS related relocations. */ | |
| 4174 | #define has_tls_reloc sec_flg0 | |
| 4175 | ||
| 4176 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4177 | #define has_tls_get_addr_call sec_flg1 | |
| 4178 | ||
| 4179 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4180 | #define has_toc_reloc sec_flg2 | |
| 4181 | ||
| 4182 | /* Nonzero if this section has a call to another section that uses | |
| 4183 | the toc or got. */ | |
| d77c8a4b | 4184 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4185 | |
| 4186 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4187 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4188 | #define call_check_done sec_flg5 |
| 4c52953f | 4189 | |
| 65f38f15 AM |
4190 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4191 | ||
| 4192 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4193 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4194 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4195 | |
| 721956f4 AM |
4196 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4197 | ((struct ppc_stub_hash_entry *) \ | |
| 4198 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4199 | ||
| 4200 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4201 | ((struct ppc_branch_hash_entry *) \ | |
| 4202 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4203 | ||
| 4204 | /* Create an entry in the stub hash table. */ | |
| 4205 | ||
| 4206 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4207 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4208 | struct bfd_hash_table *table, | |
| 4209 | const char *string) | |
| 721956f4 AM |
4210 | { |
| 4211 | /* Allocate the structure if it has not already been allocated by a | |
| 4212 | subclass. */ | |
| 4213 | if (entry == NULL) | |
| 4214 | { | |
| 4215 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4216 | if (entry == NULL) | |
| 4217 | return entry; | |
| 4218 | } | |
| 4219 | ||
| 4220 | /* Call the allocation method of the superclass. */ | |
| 4221 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4222 | if (entry != NULL) | |
| 4223 | { | |
| 4224 | struct ppc_stub_hash_entry *eh; | |
| 4225 | ||
| 4226 | /* Initialize the local fields. */ | |
| 4227 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4228 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4229 | eh->group = NULL; |
| 721956f4 AM |
4230 | eh->stub_offset = 0; |
| 4231 | eh->target_value = 0; | |
| 4232 | eh->target_section = NULL; | |
| 721956f4 | 4233 | eh->h = NULL; |
| 6911b7dc | 4234 | eh->plt_ent = NULL; |
| 6911b7dc | 4235 | eh->other = 0; |
| 721956f4 AM |
4236 | } |
| 4237 | ||
| 4238 | return entry; | |
| 4239 | } | |
| 4240 | ||
| 4241 | /* Create an entry in the branch hash table. */ | |
| 4242 | ||
| 4243 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4244 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4245 | struct bfd_hash_table *table, | |
| 4246 | const char *string) | |
| 721956f4 AM |
4247 | { |
| 4248 | /* Allocate the structure if it has not already been allocated by a | |
| 4249 | subclass. */ | |
| 4250 | if (entry == NULL) | |
| 4251 | { | |
| 4252 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4253 | if (entry == NULL) | |
| 4254 | return entry; | |
| 4255 | } | |
| 4256 | ||
| 4257 | /* Call the allocation method of the superclass. */ | |
| 4258 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4259 | if (entry != NULL) | |
| 4260 | { | |
| 4261 | struct ppc_branch_hash_entry *eh; | |
| 4262 | ||
| 4263 | /* Initialize the local fields. */ | |
| 4264 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4265 | eh->offset = 0; | |
| 4266 | eh->iter = 0; | |
| 4267 | } | |
| 4268 | ||
| 4269 | return entry; | |
| 4270 | } | |
| 4271 | ||
| 65f38f15 AM |
4272 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4273 | ||
| 4274 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4275 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4276 | struct bfd_hash_table *table, | |
| 4277 | const char *string) | |
| 65f38f15 AM |
4278 | { |
| 4279 | /* Allocate the structure if it has not already been allocated by a | |
| 4280 | subclass. */ | |
| 4281 | if (entry == NULL) | |
| 4282 | { | |
| 4283 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4284 | if (entry == NULL) | |
| 4285 | return entry; | |
| 4286 | } | |
| 4287 | ||
| 4288 | /* Call the allocation method of the superclass. */ | |
| 4289 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4290 | if (entry != NULL) | |
| 4291 | { | |
| 4292 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4293 | ||
| b3fac117 | 4294 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4295 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4296 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4297 | ||
| 4298 | /* When making function calls, old ABI code references function entry | |
| 4299 | points (dot symbols), while new ABI code references the function | |
| 4300 | descriptor symbol. We need to make any combination of reference and | |
| 4301 | definition work together, without breaking archive linking. | |
| 4302 | ||
| 4303 | For a defined function "foo" and an undefined call to "bar": | |
| 4304 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4305 | "bar" too). | |
| 4306 | A new object defines "foo" and references "bar". | |
| 4307 | ||
| 4308 | A new object thus has no problem with its undefined symbols being | |
| 4309 | satisfied by definitions in an old object. On the other hand, the | |
| 4310 | old object won't have ".bar" satisfied by a new object. | |
| 4311 | ||
| 4312 | Keep a list of newly added dot-symbols. */ | |
| 4313 | ||
| 4314 | if (string[0] == '.') | |
| 4315 | { | |
| 4316 | struct ppc_link_hash_table *htab; | |
| 4317 | ||
| 4318 | htab = (struct ppc_link_hash_table *) table; | |
| 4319 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4320 | htab->dot_syms = eh; | |
| 4321 | } | |
| 65f38f15 AM |
4322 | } |
| 4323 | ||
| 4324 | return entry; | |
| 4325 | } | |
| 4326 | ||
| 3b421ab3 AM |
4327 | struct tocsave_entry { |
| 4328 | asection *sec; | |
| 4329 | bfd_vma offset; | |
| 4330 | }; | |
| 4331 | ||
| 4332 | static hashval_t | |
| 4333 | tocsave_htab_hash (const void *p) | |
| 4334 | { | |
| 4335 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4336 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4337 | } |
| 4338 | ||
| 4339 | static int | |
| 4340 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4341 | { | |
| 4342 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4343 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4344 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4345 | } | |
| 4346 | ||
| 68faa637 AM |
4347 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4348 | ||
| 4349 | static void | |
| d495ab0d | 4350 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4351 | { |
| d495ab0d | 4352 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4353 | |
| d495ab0d | 4354 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4355 | if (htab->tocsave_htab) |
| 4356 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4357 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4358 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4359 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4360 | } |
| 4361 | ||
| 65f38f15 AM |
4362 | /* Create a ppc64 ELF linker hash table. */ |
| 4363 | ||
| 4364 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4365 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4366 | { |
| 4367 | struct ppc_link_hash_table *htab; | |
| 4368 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4369 | ||
| 4ce794b7 | 4370 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4371 | if (htab == NULL) |
| 4372 | return NULL; | |
| 4373 | ||
| 66eb6687 | 4374 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4375 | sizeof (struct ppc_link_hash_entry), |
| 4376 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4377 | { |
| e2d34d7d | 4378 | free (htab); |
| 65f38f15 AM |
4379 | return NULL; |
| 4380 | } | |
| 4381 | ||
| 721956f4 | 4382 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4383 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4384 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4385 | { |
| d495ab0d | 4386 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4387 | return NULL; |
| 4388 | } | |
| 721956f4 AM |
4389 | |
| 4390 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4391 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4392 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4393 | { |
| 4394 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4395 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4396 | return NULL; |
| 4397 | } | |
| 721956f4 | 4398 | |
| 3b421ab3 AM |
4399 | htab->tocsave_htab = htab_try_create (1024, |
| 4400 | tocsave_htab_hash, | |
| 4401 | tocsave_htab_eq, | |
| 4402 | NULL); | |
| 4403 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4404 | { |
| d495ab0d | 4405 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4406 | return NULL; |
| 4407 | } | |
| d495ab0d | 4408 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4409 | |
| 3254fd24 AM |
4410 | /* Initializing two fields of the union is just cosmetic. We really |
| 4411 | only care about glist, but when compiled on a 32-bit host the | |
| 4412 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4413 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4414 | htab->elf.init_got_refcount.refcount = 0; |
| 4415 | htab->elf.init_got_refcount.glist = NULL; | |
| 4416 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4417 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4418 | htab->elf.init_got_offset.offset = 0; | |
| 4419 | htab->elf.init_got_offset.glist = NULL; | |
| 4420 | htab->elf.init_plt_offset.offset = 0; | |
| 4421 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4422 | |
| 65f38f15 AM |
4423 | return &htab->elf.root; |
| 4424 | } | |
| 4425 | ||
| bfeb4a28 AM |
4426 | /* Create sections for linker generated code. */ |
| 4427 | ||
| 4428 | static bfd_boolean | |
| 4429 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4430 | { | |
| 4431 | struct ppc_link_hash_table *htab; | |
| 4432 | flagword flags; | |
| 4433 | ||
| 4434 | htab = ppc_hash_table (info); | |
| 4435 | ||
| bfeb4a28 AM |
4436 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4437 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4438 | if (htab->params->save_restore_funcs) |
| 4439 | { | |
| 4440 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4441 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4442 | flags); | |
| 4443 | if (htab->sfpr == NULL | |
| 4444 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4445 | return FALSE; | |
| 4446 | } | |
| 4447 | ||
| 4448 | if (bfd_link_relocatable (info)) | |
| 4449 | return TRUE; | |
| bfeb4a28 AM |
4450 | |
| 4451 | /* Create .glink for lazy dynamic linking support. */ | |
| 4452 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4453 | flags); | |
| 4454 | if (htab->glink == NULL | |
| 4455 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4456 | return FALSE; | |
| 4457 | ||
| 9e390558 AM |
4458 | /* The part of .glink used by global entry stubs, separate so that |
| 4459 | it can be aligned appropriately without affecting htab->glink. */ | |
| 4460 | htab->global_entry = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4461 | flags); | |
| 4462 | if (htab->global_entry == NULL | |
| 4463 | || ! bfd_set_section_alignment (dynobj, htab->global_entry, 2)) | |
| 4464 | return FALSE; | |
| 4465 | ||
| bfeb4a28 AM |
4466 | if (!info->no_ld_generated_unwind_info) |
| 4467 | { | |
| 4468 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4469 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4470 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4471 | ".eh_frame", | |
| 4472 | flags); | |
| 4473 | if (htab->glink_eh_frame == NULL | |
| 4474 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4475 | return FALSE; | |
| 4476 | } | |
| 4477 | ||
| 4478 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4479 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4480 | if (htab->elf.iplt == NULL | |
| 4481 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4482 | return FALSE; |
| 4483 | ||
| 4484 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4485 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4486 | htab->elf.irelplt |
| 4487 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4488 | if (htab->elf.irelplt == NULL | |
| 4489 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4490 | return FALSE; |
| 4491 | ||
| 4492 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4493 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4494 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4495 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4496 | flags); | |
| 4497 | if (htab->brlt == NULL | |
| 4498 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4499 | return FALSE; | |
| 4500 | ||
| 0e1862bb | 4501 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4502 | return TRUE; |
| 4503 | ||
| 4504 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4505 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4506 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4507 | ".rela.branch_lt", | |
| 4508 | flags); | |
| 4509 | if (htab->relbrlt == NULL | |
| 4510 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4511 | return FALSE; | |
| 4512 | ||
| 4513 | return TRUE; | |
| 4514 | } | |
| 4515 | ||
| e717da7e AM |
4516 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4517 | ||
| bfeb4a28 | 4518 | bfd_boolean |
| e7d1c40c AM |
4519 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4520 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4521 | { |
| 4522 | struct ppc_link_hash_table *htab; | |
| 4523 | ||
| e7d1c40c | 4524 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4525 | |
| 4526 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4527 | linker created stub bfd. This ensures that the GOT header is at | |
| 4528 | the start of the output TOC section. */ | |
| 4529 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4530 | htab->elf.dynobj = params->stub_bfd; |
| 4531 | htab->params = params; | |
| bfeb4a28 | 4532 | |
| bfeb4a28 | 4533 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4534 | } |
| 4535 | ||
| 721956f4 AM |
4536 | /* Build a name for an entry in the stub hash table. */ |
| 4537 | ||
| 4538 | static char * | |
| 4ce794b7 AM |
4539 | ppc_stub_name (const asection *input_section, |
| 4540 | const asection *sym_sec, | |
| 4541 | const struct ppc_link_hash_entry *h, | |
| 4542 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4543 | { |
| 4544 | char *stub_name; | |
| bcaa2f82 | 4545 | ssize_t len; |
| 721956f4 AM |
4546 | |
| 4547 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4548 | offsets from a sym as a branch target? In fact, we could | |
| 4549 | probably assume the addend is always zero. */ | |
| 4550 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4551 | ||
| 4552 | if (h) | |
| 4553 | { | |
| 4554 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4555 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4556 | if (stub_name == NULL) |
| 4557 | return stub_name; | |
| 4558 | ||
| bcaa2f82 AM |
4559 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4560 | input_section->id & 0xffffffff, | |
| 4561 | h->elf.root.root.string, | |
| 4562 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4563 | } |
| 4564 | else | |
| 4565 | { | |
| ad8e1ba5 | 4566 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4567 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4568 | if (stub_name == NULL) |
| 4569 | return stub_name; | |
| 4570 | ||
| bcaa2f82 AM |
4571 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4572 | input_section->id & 0xffffffff, | |
| 4573 | sym_sec->id & 0xffffffff, | |
| 4574 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4575 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4576 | } |
| bcaa2f82 | 4577 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4578 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4579 | return stub_name; |
| 4580 | } | |
| 4581 | ||
| 4582 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4583 | creating the stub name takes a bit of time. */ | |
| 4584 | ||
| 4585 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4586 | ppc_get_stub_entry (const asection *input_section, |
| 4587 | const asection *sym_sec, | |
| 039b3fef | 4588 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4589 | const Elf_Internal_Rela *rel, |
| 4590 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4591 | { |
| 4592 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4593 | struct map_stub *group; |
| 721956f4 AM |
4594 | |
| 4595 | /* If this input section is part of a group of sections sharing one | |
| 4596 | stub section, then use the id of the first section in the group. | |
| 4597 | Stub names need to include a section id, as there may well be | |
| 4598 | more than one stub used to reach say, printf, and we need to | |
| 4599 | distinguish between them. */ | |
| 6f20ed8a | 4600 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4601 | if (group == NULL) |
| 4602 | return NULL; | |
| 721956f4 | 4603 | |
| b3fac117 AM |
4604 | if (h != NULL && h->u.stub_cache != NULL |
| 4605 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4606 | && h->u.stub_cache->group == group) |
| 721956f4 | 4607 | { |
| b3fac117 | 4608 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4609 | } |
| 4610 | else | |
| 4611 | { | |
| 4612 | char *stub_name; | |
| 4613 | ||
| 6f20ed8a | 4614 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4615 | if (stub_name == NULL) |
| 4616 | return NULL; | |
| 4617 | ||
| 4618 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4619 | stub_name, FALSE, FALSE); |
| 721956f4 | 4620 | if (h != NULL) |
| b3fac117 | 4621 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4622 | |
| 4623 | free (stub_name); | |
| 4624 | } | |
| 4625 | ||
| 4626 | return stub_entry; | |
| 4627 | } | |
| 4628 | ||
| 4629 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4630 | stub entry are initialised. */ | |
| 4631 | ||
| 4632 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4633 | ppc_add_stub (const char *stub_name, |
| 4634 | asection *section, | |
| 25f53a85 | 4635 | struct bfd_link_info *info) |
| 721956f4 | 4636 | { |
| 25f53a85 | 4637 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4638 | struct map_stub *group; |
| 721956f4 AM |
4639 | asection *link_sec; |
| 4640 | asection *stub_sec; | |
| 4641 | struct ppc_stub_hash_entry *stub_entry; | |
| 4642 | ||
| 6f20ed8a AM |
4643 | group = htab->sec_info[section->id].u.group; |
| 4644 | link_sec = group->link_sec; | |
| 4645 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4646 | if (stub_sec == NULL) |
| 4647 | { | |
| 6f20ed8a AM |
4648 | size_t namelen; |
| 4649 | bfd_size_type len; | |
| 4650 | char *s_name; | |
| 721956f4 | 4651 | |
| 6f20ed8a AM |
4652 | namelen = strlen (link_sec->name); |
| 4653 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4654 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4655 | if (s_name == NULL) | |
| 4656 | return NULL; | |
| 721956f4 | 4657 | |
| 6f20ed8a AM |
4658 | memcpy (s_name, link_sec->name, namelen); |
| 4659 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4660 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4661 | if (stub_sec == NULL) | |
| 4662 | return NULL; | |
| 4663 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4664 | } |
| 4665 | ||
| 4666 | /* Enter this entry into the linker stub hash table. */ | |
| 4667 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4668 | TRUE, FALSE); |
| 721956f4 AM |
4669 | if (stub_entry == NULL) |
| 4670 | { | |
| 695344c0 | 4671 | /* xgettext:c-format */ |
| cf97bcb0 AM |
4672 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
| 4673 | section->owner, stub_name); | |
| 721956f4 AM |
4674 | return NULL; |
| 4675 | } | |
| 4676 | ||
| 6f20ed8a | 4677 | stub_entry->group = group; |
| 721956f4 | 4678 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4679 | return stub_entry; |
| 4680 | } | |
| 4681 | ||
| e717da7e AM |
4682 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4683 | not already done. */ | |
| 65f38f15 | 4684 | |
| b34976b6 | 4685 | static bfd_boolean |
| e717da7e | 4686 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4687 | { |
| e717da7e AM |
4688 | asection *got, *relgot; |
| 4689 | flagword flags; | |
| 4690 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4691 | |
| 0c8d6e5c | 4692 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4693 | return FALSE; |
| 4dfe6ac6 NC |
4694 | if (htab == NULL) |
| 4695 | return FALSE; | |
| 0ffa91dd | 4696 | |
| 33e44f2e AM |
4697 | if (!htab->elf.sgot |
| 4698 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4699 | return FALSE; | |
| e717da7e AM |
4700 | |
| 4701 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4702 | | SEC_LINKER_CREATED); | |
| 4703 | ||
| c456f082 | 4704 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4705 | if (!got |
| e717da7e AM |
4706 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4707 | return FALSE; | |
| 65f38f15 | 4708 | |
| c456f082 AM |
4709 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4710 | flags | SEC_READONLY); | |
| e717da7e | 4711 | if (!relgot |
| e717da7e | 4712 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4713 | return FALSE; |
| e717da7e AM |
4714 | |
| 4715 | ppc64_elf_tdata (abfd)->got = got; | |
| 4716 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4717 | return TRUE; |
| 65f38f15 | 4718 | } |
| 5bd4f169 | 4719 | |
| b31867b6 AM |
4720 | /* Follow indirect and warning symbol links. */ |
| 4721 | ||
| 4722 | static inline struct bfd_link_hash_entry * | |
| 4723 | follow_link (struct bfd_link_hash_entry *h) | |
| 4724 | { | |
| 4725 | while (h->type == bfd_link_hash_indirect | |
| 4726 | || h->type == bfd_link_hash_warning) | |
| 4727 | h = h->u.i.link; | |
| 4728 | return h; | |
| 4729 | } | |
| 4730 | ||
| 4731 | static inline struct elf_link_hash_entry * | |
| 4732 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4733 | { | |
| 4734 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4735 | } | |
| 4736 | ||
| 4737 | static inline struct ppc_link_hash_entry * | |
| 4738 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4739 | { | |
| 4740 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4741 | } | |
| 4742 | ||
| 40d16e0b AM |
4743 | /* Merge PLT info on FROM with that on TO. */ |
| 4744 | ||
| 4745 | static void | |
| 4746 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4747 | struct ppc_link_hash_entry *to) | |
| 4748 | { | |
| 4749 | if (from->elf.plt.plist != NULL) | |
| 4750 | { | |
| 4751 | if (to->elf.plt.plist != NULL) | |
| 4752 | { | |
| 4753 | struct plt_entry **entp; | |
| 4754 | struct plt_entry *ent; | |
| 4755 | ||
| 4756 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4757 | { | |
| 4758 | struct plt_entry *dent; | |
| 4759 | ||
| 4760 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4761 | if (dent->addend == ent->addend) | |
| 4762 | { | |
| 4763 | dent->plt.refcount += ent->plt.refcount; | |
| 4764 | *entp = ent->next; | |
| 4765 | break; | |
| 4766 | } | |
| 4767 | if (dent == NULL) | |
| 4768 | entp = &ent->next; | |
| 4769 | } | |
| 4770 | *entp = to->elf.plt.plist; | |
| 4771 | } | |
| 4772 | ||
| 4773 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4774 | from->elf.plt.plist = NULL; | |
| 4775 | } | |
| 4776 | } | |
| 4777 | ||
| 65f38f15 AM |
4778 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4779 | ||
| 4780 | static void | |
| fcfa13d2 AM |
4781 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4782 | struct elf_link_hash_entry *dir, | |
| 4783 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4784 | { |
| 4785 | struct ppc_link_hash_entry *edir, *eind; | |
| 4786 | ||
| 4787 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4788 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4789 | ||
| c79d6685 AM |
4790 | edir->is_func |= eind->is_func; |
| 4791 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4792 | edir->tls_mask |= eind->tls_mask; | |
| 4793 | if (eind->oh != NULL) | |
| 4794 | edir->oh = ppc_follow_link (eind->oh); | |
| 4795 | ||
| 474436e6 | 4796 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4797 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4798 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4799 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4a7e5234 | 4800 | edir->elf.non_got_ref |= eind->elf.non_got_ref; |
| e81830c5 AM |
4801 | edir->elf.needs_plt |= eind->elf.needs_plt; |
| 4802 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4803 | |
| d311bc8b AM |
4804 | /* If we were called to copy over info for a weak sym, don't copy |
| 4805 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4806 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4807 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4808 | tests about a specific symbol, or affect other symbol flags which | |
| ab2477e1 | 4809 | are then tested. */ |
| d311bc8b | 4810 | if (eind->elf.root.type != bfd_link_hash_indirect) |
| ab2477e1 | 4811 | return; |
| d311bc8b | 4812 | |
| 411e1bfb | 4813 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4814 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4815 | { |
| bbd7ec4a AM |
4816 | if (edir->dyn_relocs != NULL) |
| 4817 | { | |
| 6061a67d AM |
4818 | struct elf_dyn_relocs **pp; |
| 4819 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4820 | |
| fcfa13d2 | 4821 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4822 | list. Merge any entries against the same section. */ |
| 4823 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4824 | { | |
| 6061a67d | 4825 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4826 | |
| 4827 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4828 | if (q->sec == p->sec) | |
| 4829 | { | |
| 4830 | q->pc_count += p->pc_count; | |
| 4831 | q->count += p->count; | |
| 4832 | *pp = p->next; | |
| 4833 | break; | |
| 4834 | } | |
| 4835 | if (q == NULL) | |
| 4836 | pp = &p->next; | |
| 4837 | } | |
| 4838 | *pp = edir->dyn_relocs; | |
| 4839 | } | |
| 4840 | ||
| 65f38f15 AM |
4841 | edir->dyn_relocs = eind->dyn_relocs; |
| 4842 | eind->dyn_relocs = NULL; | |
| 4843 | } | |
| 65f38f15 | 4844 | |
| 81848ca0 AM |
4845 | /* Copy over got entries that we may have already seen to the |
| 4846 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4847 | if (eind->elf.got.glist != NULL) |
| 4848 | { | |
| 4849 | if (edir->elf.got.glist != NULL) | |
| 4850 | { | |
| 4851 | struct got_entry **entp; | |
| 4852 | struct got_entry *ent; | |
| 4853 | ||
| 4854 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4855 | { | |
| 4856 | struct got_entry *dent; | |
| 4857 | ||
| 4858 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4859 | if (dent->addend == ent->addend | |
| e717da7e | 4860 | && dent->owner == ent->owner |
| 411e1bfb AM |
4861 | && dent->tls_type == ent->tls_type) |
| 4862 | { | |
| 4863 | dent->got.refcount += ent->got.refcount; | |
| 4864 | *entp = ent->next; | |
| 4865 | break; | |
| 4866 | } | |
| 4867 | if (dent == NULL) | |
| 4868 | entp = &ent->next; | |
| 4869 | } | |
| 4870 | *entp = edir->elf.got.glist; | |
| 4871 | } | |
| 4872 | ||
| 4873 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4874 | eind->elf.got.glist = NULL; | |
| 4875 | } | |
| 4876 | ||
| 4877 | /* And plt entries. */ | |
| 40d16e0b | 4878 | move_plt_plist (eind, edir); |
| 411e1bfb | 4879 | |
| fcfa13d2 | 4880 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4881 | { |
| fcfa13d2 AM |
4882 | if (edir->elf.dynindx != -1) |
| 4883 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4884 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4885 | edir->elf.dynindx = eind->elf.dynindx; |
| 4886 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4887 | eind->elf.dynindx = -1; | |
| 4888 | eind->elf.dynstr_index = 0; | |
| 4889 | } | |
| 411e1bfb AM |
4890 | } |
| 4891 | ||
| 8387904d AM |
4892 | /* Find the function descriptor hash entry from the given function code |
| 4893 | hash entry FH. Link the entries via their OH fields. */ | |
| 4894 | ||
| 4895 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4896 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4897 | { |
| 4898 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4899 | ||
| 4900 | if (fdh == NULL) | |
| 4901 | { | |
| 4902 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4903 | ||
| 4904 | fdh = (struct ppc_link_hash_entry *) | |
| 4905 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4906 | if (fdh == NULL) |
| 4907 | return fdh; | |
| 4908 | ||
| 4909 | fdh->is_func_descriptor = 1; | |
| 4910 | fdh->oh = fh; | |
| 4911 | fh->is_func = 1; | |
| 4912 | fh->oh = fdh; | |
| 8387904d AM |
4913 | } |
| 4914 | ||
| 8c5b4e52 AM |
4915 | fdh = ppc_follow_link (fdh); |
| 4916 | fdh->is_func_descriptor = 1; | |
| 4917 | fdh->oh = fh; | |
| 4918 | return fdh; | |
| 8387904d AM |
4919 | } |
| 4920 | ||
| 8c5b4e52 | 4921 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4922 | |
| 4923 | static struct ppc_link_hash_entry * | |
| 4924 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4925 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4926 | { |
| 8c5b4e52 AM |
4927 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4928 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4929 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4930 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4931 | ? BSF_WEAK | |
| 4932 | : BSF_GLOBAL); | |
| 4933 | ||
| 4934 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4935 | fh->elf.root.root.string + 1, | |
| 4936 | flags, bfd_und_section_ptr, 0, | |
| 4937 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4938 | return NULL; |
| 4939 | ||
| 4940 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4941 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4942 | fdh->fake = 1; |
| 4943 | fdh->is_func_descriptor = 1; | |
| 4944 | fdh->oh = fh; | |
| 4945 | fh->is_func = 1; | |
| 4946 | fh->oh = fdh; | |
| bb700d78 AM |
4947 | return fdh; |
| 4948 | } | |
| 4949 | ||
| 8387904d AM |
4950 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4951 | function type. */ | |
| 555cd476 AM |
4952 | |
| 4953 | static bfd_boolean | |
| c16153ae | 4954 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4955 | struct bfd_link_info *info, |
| 555cd476 | 4956 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4957 | const char **name, |
| 555cd476 AM |
4958 | flagword *flags ATTRIBUTE_UNUSED, |
| 4959 | asection **sec, | |
| b53dfeb2 | 4960 | bfd_vma *value) |
| 555cd476 | 4961 | { |
| a43942db | 4962 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4963 | && (ibfd->flags & DYNAMIC) == 0 |
| 4964 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4965 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4966 | |
| b53dfeb2 | 4967 | if (*sec != NULL |
| f1885d1e | 4968 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4969 | { |
| 4970 | asection *code_sec; | |
| 4971 | ||
| 4972 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4973 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4974 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4975 | ||
| 4976 | /* If the symbol is a function defined in .opd, and the function | |
| 4977 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4978 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4979 | && (*sec)->reloc_count != 0 |
| 4980 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4981 | FALSE) != (bfd_vma) -1 | |
| 4982 | && discarded_section (code_sec)) | |
| 4983 | { | |
| 4984 | *sec = bfd_und_section_ptr; | |
| 4985 | isym->st_shndx = SHN_UNDEF; | |
| 4986 | } | |
| 4987 | } | |
| dbd1e97e AM |
4988 | else if (*sec != NULL |
| 4989 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4990 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4991 | { | |
| 4992 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4993 | if (htab != NULL) | |
| 4994 | htab->params->object_in_toc = 1; | |
| 4995 | } | |
| 433817dd | 4996 | |
| 6911b7dc AM |
4997 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4998 | { | |
| 4999 | if (abiversion (ibfd) == 0) | |
| 5000 | set_abiversion (ibfd, 2); | |
| 5001 | else if (abiversion (ibfd) == 1) | |
| 5002 | { | |
| cf97bcb0 AM |
5003 | _bfd_error_handler (_("symbol '%s' has invalid st_other" |
| 5004 | " for ABI version 1"), *name); | |
| 6911b7dc AM |
5005 | bfd_set_error (bfd_error_bad_value); |
| 5006 | return FALSE; | |
| 5007 | } | |
| 5008 | } | |
| 5009 | ||
| 555cd476 AM |
5010 | return TRUE; |
| 5011 | } | |
| 5012 | ||
| 6911b7dc AM |
5013 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 5014 | ||
| 5015 | static void | |
| 5016 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5017 | const Elf_Internal_Sym *isym, | |
| 5018 | bfd_boolean definition, | |
| 5019 | bfd_boolean dynamic) | |
| 5020 | { | |
| f378ab09 | 5021 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5022 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5023 | | ELF_ST_VISIBILITY (h->other)); | |
| 5024 | } | |
| 5025 | ||
| 8c5b4e52 AM |
5026 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5027 | we now have a real symbol. */ | |
| 5028 | ||
| 5029 | static bfd_boolean | |
| 5030 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5031 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5032 | asection **psec ATTRIBUTE_UNUSED, |
| 5033 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5034 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5035 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5036 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5037 | { | |
| 5038 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5039 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5040 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5041 | return TRUE; |
| 5042 | } | |
| 5043 | ||
| 8387904d | 5044 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5045 | inclusion of a new ABI object archive that defines "bar". |
| 5046 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5047 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5048 | |
| 5049 | static struct elf_link_hash_entry * | |
| 5050 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5051 | struct bfd_link_info *info, | |
| 5052 | const char *name) | |
| 5053 | { | |
| 5054 | struct elf_link_hash_entry *h; | |
| 5055 | char *dot_name; | |
| 5056 | size_t len; | |
| 5057 | ||
| 5058 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5059 | if (h != NULL |
| 5060 | /* Don't return this sym if it is a fake function descriptor | |
| 5061 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5062 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5063 | return h; |
| 5064 | ||
| 5065 | if (name[0] == '.') | |
| 5066 | return h; | |
| 5067 | ||
| 5068 | len = strlen (name); | |
| 5069 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5070 | if (dot_name == NULL) | |
| e99955cd | 5071 | return (struct elf_link_hash_entry *) -1; |
| 8387904d AM |
5072 | dot_name[0] = '.'; |
| 5073 | memcpy (dot_name + 1, name, len + 1); | |
| 5074 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5075 | bfd_release (abfd, dot_name); | |
| 5076 | return h; | |
| 5077 | } | |
| 5078 | ||
| 5079 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5080 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5081 | are made weak. This stops later archive searches from including an | |
| 5082 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5083 | prevents the linker complaining about undefined symbols. |
| 5084 | We also check and correct mismatched symbol visibility here. The | |
| 5085 | most restrictive visibility of the function descriptor and the | |
| 5086 | function entry symbol is used. */ | |
| 8387904d AM |
5087 | |
| 5088 | static bfd_boolean | |
| b3fac117 | 5089 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5090 | { |
| 8387904d AM |
5091 | struct ppc_link_hash_table *htab; |
| 5092 | struct ppc_link_hash_entry *fdh; | |
| 5093 | ||
| b3fac117 AM |
5094 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5095 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5096 | |
| 8400d40d AM |
5097 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5098 | return TRUE; | |
| 5099 | ||
| b3fac117 AM |
5100 | if (eh->elf.root.root.string[0] != '.') |
| 5101 | abort (); | |
| 8387904d | 5102 | |
| b3fac117 | 5103 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5104 | if (htab == NULL) |
| 5105 | return FALSE; | |
| 5106 | ||
| b31867b6 | 5107 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5108 | if (fdh == NULL |
| 5109 | && !bfd_link_relocatable (info) | |
| 5110 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5111 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5112 | && eh->elf.ref_regular) | |
| 5113 | { | |
| 5114 | /* Make an undefined function descriptor sym, in order to | |
| 5115 | pull in an --as-needed shared lib. Archives are handled | |
| 5116 | elsewhere. */ | |
| 5117 | fdh = make_fdh (info, eh); | |
| 5118 | if (fdh == NULL) | |
| 5119 | return FALSE; | |
| bb700d78 | 5120 | } |
| 8c5b4e52 AM |
5121 | |
| 5122 | if (fdh != NULL) | |
| 8387904d | 5123 | { |
| 35b0ce59 AM |
5124 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5125 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5126 | |
| 5127 | /* Make both descriptor and entry symbol have the most | |
| 5128 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5129 | if (entry_vis < descr_vis) |
| 5130 | fdh->elf.other += entry_vis - descr_vis; | |
| 5131 | else if (entry_vis > descr_vis) | |
| 5132 | eh->elf.other += descr_vis - entry_vis; | |
| 5133 | ||
| 8c5b4e52 AM |
5134 | /* Propagate reference flags from entry symbol to function |
| 5135 | descriptor symbol. */ | |
| bc4e12de | 5136 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5137 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5138 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5139 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5140 | ||
| 5141 | if (!fdh->elf.forced_local | |
| 5142 | && fdh->elf.dynindx == -1 | |
| 5143 | && fdh->elf.versioned != versioned_hidden | |
| 5144 | && (bfd_link_dll (info) | |
| 5145 | || fdh->elf.def_dynamic | |
| 5146 | || fdh->elf.ref_dynamic) | |
| 5147 | && (eh->elf.ref_regular | |
| 5148 | || eh->elf.def_regular)) | |
| 5149 | { | |
| 5150 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5151 | return FALSE; | |
| 35b0ce59 | 5152 | } |
| 8387904d | 5153 | } |
| 99877b66 | 5154 | |
| 8387904d AM |
5155 | return TRUE; |
| 5156 | } | |
| 5157 | ||
| f6c7c3e8 AM |
5158 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5159 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5160 | |
| 8387904d | 5161 | static bfd_boolean |
| f6c7c3e8 | 5162 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5163 | { |
| 99877b66 | 5164 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5165 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5166 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5167 | |
| 459609d6 | 5168 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5169 | { |
| b9399fcf AM |
5170 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); |
| 5171 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| 5172 | ||
| 459609d6 AM |
5173 | if (abiversion (ibfd) == 0) |
| 5174 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5175 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5176 | { |
| 695344c0 | 5177 | /* xgettext:c-format */ |
| cf97bcb0 AM |
5178 | _bfd_error_handler (_("%pB .opd not allowed in ABI version %d"), |
| 5179 | ibfd, abiversion (ibfd)); | |
| 459609d6 AM |
5180 | bfd_set_error (bfd_error_bad_value); |
| 5181 | return FALSE; | |
| f6c7c3e8 | 5182 | } |
| b9399fcf | 5183 | } |
| f6c7c3e8 | 5184 | |
| b9399fcf AM |
5185 | if (is_ppc64_elf (info->output_bfd)) |
| 5186 | { | |
| 5187 | /* For input files without an explicit abiversion in e_flags | |
| 5188 | we should have flagged any with symbol st_other bits set | |
| 5189 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5190 | Set the output abiversion if not yet set, and for any input | |
| 5191 | still ambiguous, take its abiversion from the output. | |
| 5192 | Differences in ABI are reported later. */ | |
| 5193 | if (abiversion (info->output_bfd) == 0) | |
| 5194 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5195 | else if (abiversion (ibfd) == 0) | |
| 5196 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| b3fac117 AM |
5197 | } |
| 5198 | ||
| 459609d6 AM |
5199 | htab = ppc_hash_table (info); |
| 5200 | if (htab == NULL) | |
| b9399fcf | 5201 | return TRUE; |
| 459609d6 | 5202 | |
| b9399fcf AM |
5203 | if (opd != NULL && opd->size != 0 |
| 5204 | && (ibfd->flags & DYNAMIC) == 0 | |
| 5205 | && (opd->flags & SEC_RELOC) != 0 | |
| 5206 | && opd->reloc_count != 0 | |
| 5207 | && !bfd_is_abs_section (opd->output_section) | |
| 5208 | && info->gc_sections) | |
| 5209 | { | |
| 5210 | /* Garbage collection needs some extra help with .opd sections. | |
| 5211 | We don't want to necessarily keep everything referenced by | |
| 5212 | relocs in .opd, as that would keep all functions. Instead, | |
| 5213 | if we reference an .opd symbol (a function descriptor), we | |
| 5214 | want to keep the function code symbol's section. This is | |
| 5215 | easy for global symbols, but for local syms we need to keep | |
| 5216 | information about the associated function section. */ | |
| 5217 | bfd_size_type amt; | |
| 5218 | asection **opd_sym_map; | |
| 5219 | Elf_Internal_Shdr *symtab_hdr; | |
| 5220 | Elf_Internal_Rela *relocs, *rel_end, *rel; | |
| 5221 | ||
| 5222 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); | |
| 5223 | opd_sym_map = bfd_zalloc (ibfd, amt); | |
| 5224 | if (opd_sym_map == NULL) | |
| 5225 | return FALSE; | |
| 5226 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; | |
| 5227 | relocs = _bfd_elf_link_read_relocs (ibfd, opd, NULL, NULL, | |
| 5228 | info->keep_memory); | |
| 5229 | if (relocs == NULL) | |
| 5230 | return FALSE; | |
| 5231 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 5232 | rel_end = relocs + opd->reloc_count - 1; | |
| 5233 | for (rel = relocs; rel < rel_end; rel++) | |
| 5234 | { | |
| 5235 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 5236 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5237 | ||
| 5238 | if (r_type == R_PPC64_ADDR64 | |
| 5239 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC | |
| 5240 | && r_symndx < symtab_hdr->sh_info) | |
| 5241 | { | |
| 5242 | Elf_Internal_Sym *isym; | |
| 5243 | asection *s; | |
| 5244 | ||
| 5245 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, r_symndx); | |
| 5246 | if (isym == NULL) | |
| 5247 | { | |
| 5248 | if (elf_section_data (opd)->relocs != relocs) | |
| 5249 | free (relocs); | |
| 5250 | return FALSE; | |
| 5251 | } | |
| 5252 | ||
| 5253 | s = bfd_section_from_elf_index (ibfd, isym->st_shndx); | |
| 5254 | if (s != NULL && s != opd) | |
| 5255 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; | |
| 5256 | } | |
| 5257 | } | |
| 5258 | if (elf_section_data (opd)->relocs != relocs) | |
| 5259 | free (relocs); | |
| 5260 | } | |
| 459609d6 AM |
5261 | |
| 5262 | p = &htab->dot_syms; | |
| 5263 | while ((eh = *p) != NULL) | |
| 5264 | { | |
| 5265 | *p = NULL; | |
| 5266 | if (&eh->elf == htab->elf.hgot) | |
| 5267 | ; | |
| 5268 | else if (htab->elf.hgot == NULL | |
| 5269 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5270 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5271 | else if (abiversion (ibfd) <= 1) |
| 5272 | { | |
| 5273 | htab->need_func_desc_adj = 1; | |
| 5274 | if (!add_symbol_adjust (eh, info)) | |
| 5275 | return FALSE; | |
| 5276 | } | |
| 459609d6 AM |
5277 | p = &eh->u.next_dot_sym; |
| 5278 | } | |
| b3fac117 | 5279 | return TRUE; |
| 8387904d AM |
5280 | } |
| 5281 | ||
| 97fed1c9 JJ |
5282 | /* Undo hash table changes when an --as-needed input file is determined |
| 5283 | not to be needed. */ | |
| 5284 | ||
| 5285 | static bfd_boolean | |
| e5034e59 AM |
5286 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5287 | struct bfd_link_info *info, | |
| 5288 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5289 | { |
| e5034e59 AM |
5290 | if (act == notice_not_needed) |
| 5291 | { | |
| 5292 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5293 | |
| e5034e59 AM |
5294 | if (htab == NULL) |
| 5295 | return FALSE; | |
| 4dfe6ac6 | 5296 | |
| e5034e59 AM |
5297 | htab->dot_syms = NULL; |
| 5298 | } | |
| 5299 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5300 | } |
| 5301 | ||
| aa374f67 AM |
5302 | /* If --just-symbols against a final linked binary, then assume we need |
| 5303 | toc adjusting stubs when calling functions defined there. */ | |
| 5304 | ||
| 5305 | static void | |
| 5306 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5307 | { | |
| 5308 | if ((sec->flags & SEC_CODE) != 0 | |
| 5309 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5310 | && is_ppc64_elf (sec->owner)) | |
| 5311 | { | |
| 2c3f079f AM |
5312 | if (abiversion (sec->owner) >= 2 |
| 5313 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5314 | sec->has_toc_reloc = 1; |
| 5315 | } | |
| 5316 | _bfd_elf_link_just_syms (sec, info); | |
| 5317 | } | |
| 5318 | ||
| e054468f | 5319 | static struct plt_entry ** |
| 4ce794b7 AM |
5320 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5321 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5322 | { |
| 5323 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5324 | struct plt_entry **local_plt; |
| f961d9dd | 5325 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5326 | |
| 5327 | if (local_got_ents == NULL) | |
| 5328 | { | |
| 5329 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5330 | ||
| e054468f AM |
5331 | size *= (sizeof (*local_got_ents) |
| 5332 | + sizeof (*local_plt) | |
| 5333 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5334 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5335 | if (local_got_ents == NULL) |
| e054468f | 5336 | return NULL; |
| 411e1bfb AM |
5337 | elf_local_got_ents (abfd) = local_got_ents; |
| 5338 | } | |
| 5339 | ||
| e054468f | 5340 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5341 | { |
| 5342 | struct got_entry *ent; | |
| 5343 | ||
| 5344 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5345 | if (ent->addend == r_addend |
| 5346 | && ent->owner == abfd | |
| 5347 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5348 | break; |
| 5349 | if (ent == NULL) | |
| 5350 | { | |
| 5351 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5352 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5353 | if (ent == NULL) |
| 5354 | return FALSE; | |
| 5355 | ent->next = local_got_ents[r_symndx]; | |
| 5356 | ent->addend = r_addend; | |
| e717da7e | 5357 | ent->owner = abfd; |
| 411e1bfb | 5358 | ent->tls_type = tls_type; |
| 927be08e | 5359 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5360 | ent->got.refcount = 0; |
| 5361 | local_got_ents[r_symndx] = ent; | |
| 5362 | } | |
| 5363 | ent->got.refcount += 1; | |
| 5364 | } | |
| 5365 | ||
| e054468f | 5366 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5367 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5368 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5369 | |
| 5370 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5371 | } |
| 5372 | ||
| 411e1bfb | 5373 | static bfd_boolean |
| e054468f | 5374 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5375 | { |
| 411e1bfb | 5376 | struct plt_entry *ent; |
| 1e2f5b6e | 5377 | |
| e054468f | 5378 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5379 | if (ent->addend == addend) |
| 5380 | break; | |
| 5381 | if (ent == NULL) | |
| 1e2f5b6e | 5382 | { |
| 411e1bfb | 5383 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5384 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5385 | if (ent == NULL) |
| 5386 | return FALSE; | |
| e054468f | 5387 | ent->next = *plist; |
| 411e1bfb AM |
5388 | ent->addend = addend; |
| 5389 | ent->plt.refcount = 0; | |
| e054468f | 5390 | *plist = ent; |
| 1e2f5b6e | 5391 | } |
| 411e1bfb | 5392 | ent->plt.refcount += 1; |
| b34976b6 | 5393 | return TRUE; |
| 1e2f5b6e AM |
5394 | } |
| 5395 | ||
| e054468f AM |
5396 | static bfd_boolean |
| 5397 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5398 | { | |
| 5399 | return (r_type == R_PPC64_REL24 | |
| 5400 | || r_type == R_PPC64_REL14 | |
| 5401 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5402 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5403 | || r_type == R_PPC64_ADDR24 | |
| 5404 | || r_type == R_PPC64_ADDR14 | |
| 5405 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5406 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5407 | } | |
| 5408 | ||
| 5bd4f169 | 5409 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5410 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5411 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5412 | |
| b34976b6 | 5413 | static bfd_boolean |
| 4ce794b7 AM |
5414 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5415 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5416 | { |
| 65f38f15 | 5417 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5418 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5419 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5420 | const Elf_Internal_Rela *rel; |
| 5421 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5422 | asection *sreloc; |
| 3a71aa26 | 5423 | struct elf_link_hash_entry *tga, *dottga; |
| b9399fcf | 5424 | bfd_boolean is_opd; |
| 5bd4f169 | 5425 | |
| 0e1862bb | 5426 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5427 | return TRUE; |
| 5bd4f169 | 5428 | |
| 680a3378 AM |
5429 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5430 | In particular, any relocs in such sections should not affect GOT | |
| 5431 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5432 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5433 | relocs, and there's not much point in propagating relocs to shared | |
| 5434 | libs that the dynamic linker won't relocate. */ | |
| 5435 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5436 | return TRUE; | |
| 5437 | ||
| 0c8d6e5c | 5438 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5439 | |
| 65f38f15 | 5440 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5441 | if (htab == NULL) |
| 5442 | return FALSE; | |
| 5443 | ||
| 3a71aa26 AM |
5444 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5445 | FALSE, FALSE, TRUE); | |
| 5446 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5447 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5448 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5449 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5450 | sreloc = NULL; |
| b9399fcf | 5451 | is_opd = ppc64_elf_section_data (sec)->sec_type == sec_opd; |
| 5bd4f169 AM |
5452 | rel_end = relocs + sec->reloc_count; |
| 5453 | for (rel = relocs; rel < rel_end; rel++) | |
| 5454 | { | |
| 5455 | unsigned long r_symndx; | |
| 5456 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5457 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5458 | int tls_type; |
| 7c8fe5c4 | 5459 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5460 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5461 | |
| 5462 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5463 | if (r_symndx < symtab_hdr->sh_info) | |
| 5464 | h = NULL; | |
| 5465 | else | |
| 973a3492 L |
5466 | { |
| 5467 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5468 | h = elf_follow_link (h); |
| 1c865ab2 AM |
5469 | |
| 5470 | if (h == htab->elf.hgot) | |
| 5471 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5472 | } |
| 5bd4f169 | 5473 | |
| 727fc41e | 5474 | tls_type = 0; |
| e054468f | 5475 | ifunc = NULL; |
| 25f23106 AM |
5476 | if (h != NULL) |
| 5477 | { | |
| 5478 | if (h->type == STT_GNU_IFUNC) | |
| 5479 | { | |
| 5480 | h->needs_plt = 1; | |
| 5481 | ifunc = &h->plt.plist; | |
| 5482 | } | |
| 5483 | } | |
| 5484 | else | |
| 5485 | { | |
| 5486 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5487 | abfd, r_symndx); | |
| 5488 | if (isym == NULL) | |
| 5489 | return FALSE; | |
| 5490 | ||
| 5491 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5492 | { | |
| 5493 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5494 | rel->r_addend, PLT_IFUNC); | |
| 5495 | if (ifunc == NULL) | |
| 5496 | return FALSE; | |
| 5497 | } | |
| 5498 | } | |
| 727fc41e | 5499 | |
| cbf95972 | 5500 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5501 | switch (r_type) |
| 5bd4f169 | 5502 | { |
| 727fc41e AM |
5503 | case R_PPC64_TLSGD: |
| 5504 | case R_PPC64_TLSLD: | |
| 5505 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5506 | its parameter symbol. */ | |
| 5507 | break; | |
| 5508 | ||
| 411e1bfb AM |
5509 | case R_PPC64_GOT_TLSLD16: |
| 5510 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5511 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5512 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5513 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5514 | goto dogottls; |
| 5515 | ||
| 5516 | case R_PPC64_GOT_TLSGD16: | |
| 5517 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5518 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5519 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5520 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5521 | goto dogottls; |
| 5522 | ||
| 5523 | case R_PPC64_GOT_TPREL16_DS: | |
| 5524 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5525 | case R_PPC64_GOT_TPREL16_HI: | |
| 5526 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5527 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5528 | info->flags |= DF_STATIC_TLS; |
| 5529 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5530 | goto dogottls; | |
| 5531 | ||
| 5532 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5533 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5534 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5535 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5536 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5537 | dogottls: | |
| 5538 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5539 | /* Fall through */ |
| 411e1bfb | 5540 | |
| 5bd4f169 | 5541 | case R_PPC64_GOT16: |
| 5bd4f169 | 5542 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5543 | case R_PPC64_GOT16_HA: |
| 5544 | case R_PPC64_GOT16_HI: | |
| 5545 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5546 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5547 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5548 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5549 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5550 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5551 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5552 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5553 | || r_type == R_PPC64_GOT16 | |
| 5554 | || r_type == R_PPC64_GOT16_DS) | |
| 5555 | { | |
| 5556 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5557 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5558 | } |
| 5559 | ||
| e717da7e AM |
5560 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5561 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5562 | return FALSE; |
| 5bd4f169 AM |
5563 | |
| 5564 | if (h != NULL) | |
| 5565 | { | |
| 411e1bfb AM |
5566 | struct ppc_link_hash_entry *eh; |
| 5567 | struct got_entry *ent; | |
| 65f38f15 | 5568 | |
| 411e1bfb AM |
5569 | eh = (struct ppc_link_hash_entry *) h; |
| 5570 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5571 | if (ent->addend == rel->r_addend | |
| e717da7e | 5572 | && ent->owner == abfd |
| 411e1bfb AM |
5573 | && ent->tls_type == tls_type) |
| 5574 | break; | |
| 5575 | if (ent == NULL) | |
| 5bd4f169 | 5576 | { |
| 411e1bfb | 5577 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5578 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5579 | if (ent == NULL) |
| b34976b6 | 5580 | return FALSE; |
| 411e1bfb AM |
5581 | ent->next = eh->elf.got.glist; |
| 5582 | ent->addend = rel->r_addend; | |
| e717da7e | 5583 | ent->owner = abfd; |
| 411e1bfb | 5584 | ent->tls_type = tls_type; |
| 927be08e | 5585 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5586 | ent->got.refcount = 0; |
| 5587 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5588 | } |
| 411e1bfb | 5589 | ent->got.refcount += 1; |
| e7b938ca | 5590 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5591 | } |
| 411e1bfb AM |
5592 | else |
| 5593 | /* This is a global offset table entry for a local symbol. */ | |
| 5594 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5595 | rel->r_addend, tls_type)) | |
| 5596 | return FALSE; | |
| a345bc8d AM |
5597 | |
| 5598 | /* We may also need a plt entry if the symbol turns out to be | |
| 5599 | an ifunc. */ | |
| 0e1862bb | 5600 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5601 | { |
| 5602 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5603 | return FALSE; | |
| 5604 | } | |
| 5bd4f169 AM |
5605 | break; |
| 5606 | ||
| 5bd4f169 | 5607 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5608 | case R_PPC64_PLT16_HI: |
| 5609 | case R_PPC64_PLT16_LO: | |
| 5610 | case R_PPC64_PLT32: | |
| 5611 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5612 | /* This symbol requires a procedure linkage table entry. */ |
| 5613 | plt_list = ifunc; | |
| 5614 | if (h != NULL) | |
| e054468f | 5615 | { |
| e054468f AM |
5616 | h->needs_plt = 1; |
| 5617 | if (h->root.root.string[0] == '.' | |
| 5618 | && h->root.root.string[1] != '\0') | |
| 5619 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5620 | plt_list = &h->plt.plist; |
| 5621 | } | |
| 5622 | if (plt_list == NULL) | |
| 5623 | { | |
| 5624 | /* It does not make sense to have a procedure linkage | |
| 5625 | table entry for a non-ifunc local symbol. */ | |
| 5626 | info->callbacks->einfo | |
| 695344c0 | 5627 | /* xgettext:c-format */ |
| 174d0a74 | 5628 | (_("%H: %s reloc against local symbol\n"), |
| cbf95972 AM |
5629 | abfd, sec, rel->r_offset, |
| 5630 | ppc64_elf_howto_table[r_type]->name); | |
| 5631 | bfd_set_error (bfd_error_bad_value); | |
| 5632 | return FALSE; | |
| e054468f | 5633 | } |
| cbf95972 AM |
5634 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5635 | return FALSE; | |
| 5bd4f169 AM |
5636 | break; |
| 5637 | ||
| 5638 | /* The following relocations don't need to propagate the | |
| 5639 | relocation if linking a shared object since they are | |
| 5640 | section relative. */ | |
| 5641 | case R_PPC64_SECTOFF: | |
| 5642 | case R_PPC64_SECTOFF_LO: | |
| 5643 | case R_PPC64_SECTOFF_HI: | |
| 5644 | case R_PPC64_SECTOFF_HA: | |
| 5645 | case R_PPC64_SECTOFF_DS: | |
| 5646 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5647 | case R_PPC64_DTPREL16: |
| 5648 | case R_PPC64_DTPREL16_LO: | |
| 5649 | case R_PPC64_DTPREL16_HI: | |
| 5650 | case R_PPC64_DTPREL16_HA: | |
| 5651 | case R_PPC64_DTPREL16_DS: | |
| 5652 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5653 | case R_PPC64_DTPREL16_HIGH: |
| 5654 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5655 | case R_PPC64_DTPREL16_HIGHER: |
| 5656 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5657 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5658 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5659 | break; |
| 5660 | ||
| ad8e1ba5 | 5661 | /* Nor do these. */ |
| 25f23106 AM |
5662 | case R_PPC64_REL16: |
| 5663 | case R_PPC64_REL16_LO: | |
| 5664 | case R_PPC64_REL16_HI: | |
| 5665 | case R_PPC64_REL16_HA: | |
| a680de9a | 5666 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5667 | break; |
| 5668 | ||
| 45965137 AM |
5669 | /* Not supported as a dynamic relocation. */ |
| 5670 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5671 | if (bfd_link_pic (info)) |
| 45965137 AM |
5672 | { |
| 5673 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5674 | ppc_howto_init (); | |
| 695344c0 | 5675 | /* xgettext:c-format */ |
| 174d0a74 | 5676 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| cf97bcb0 | 5677 | "in shared libraries and PIEs\n"), |
| 45965137 AM |
5678 | abfd, sec, rel->r_offset, |
| 5679 | ppc64_elf_howto_table[r_type]->name); | |
| 5680 | bfd_set_error (bfd_error_bad_value); | |
| 5681 | return FALSE; | |
| 5682 | } | |
| 5683 | break; | |
| 5684 | ||
| ad8e1ba5 | 5685 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5686 | case R_PPC64_TOC16_DS: |
| 5687 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5688 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5689 | /* Fall through. */ |
| ad8e1ba5 AM |
5690 | case R_PPC64_TOC16_LO: |
| 5691 | case R_PPC64_TOC16_HI: | |
| 5692 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5693 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5694 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5695 | break; |
| 5696 | ||
| 006589cf AM |
5697 | /* Marker reloc. */ |
| 5698 | case R_PPC64_ENTRY: | |
| 5699 | break; | |
| 5700 | ||
| 5bd4f169 AM |
5701 | /* This relocation describes the C++ object vtable hierarchy. |
| 5702 | Reconstruct it for later use during GC. */ | |
| 5703 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5704 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5705 | return FALSE; |
| 5bd4f169 AM |
5706 | break; |
| 5707 | ||
| 5708 | /* This relocation describes which C++ vtable entries are actually | |
| 5709 | used. Record for later use during GC. */ | |
| 5710 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5711 | BFD_ASSERT (h != NULL); |
| 5712 | if (h != NULL | |
| 5713 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5714 | return FALSE; |
| 5bd4f169 AM |
5715 | break; |
| 5716 | ||
| 721956f4 AM |
5717 | case R_PPC64_REL14: |
| 5718 | case R_PPC64_REL14_BRTAKEN: | |
| 5719 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5720 | { |
| 5721 | asection *dest = NULL; | |
| 5722 | ||
| 5723 | /* Heuristic: If jumping outside our section, chances are | |
| 5724 | we are going to need a stub. */ | |
| 5725 | if (h != NULL) | |
| 5726 | { | |
| 5727 | /* If the sym is weak it may be overridden later, so | |
| 5728 | don't assume we know where a weak sym lives. */ | |
| 5729 | if (h->root.type == bfd_link_hash_defined) | |
| 5730 | dest = h->root.u.def.section; | |
| 5731 | } | |
| 5732 | else | |
| 87d72d41 AM |
5733 | { |
| 5734 | Elf_Internal_Sym *isym; | |
| 5735 | ||
| 5736 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5737 | abfd, r_symndx); | |
| 5738 | if (isym == NULL) | |
| 5739 | return FALSE; | |
| 5740 | ||
| 5741 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5742 | } | |
| 5743 | ||
| 220c76dd | 5744 | if (dest != sec) |
| 7c8fe5c4 | 5745 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5746 | } |
| 721956f4 AM |
5747 | /* Fall through. */ |
| 5748 | ||
| 5d1634d7 | 5749 | case R_PPC64_REL24: |
| cbf95972 AM |
5750 | plt_list = ifunc; |
| 5751 | if (h != NULL) | |
| 5d1634d7 | 5752 | { |
| e054468f AM |
5753 | h->needs_plt = 1; |
| 5754 | if (h->root.root.string[0] == '.' | |
| 5755 | && h->root.root.string[1] != '\0') | |
| 5756 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5757 | |
| 3a71aa26 | 5758 | if (h == tga || h == dottga) |
| cbf95972 AM |
5759 | { |
| 5760 | sec->has_tls_reloc = 1; | |
| 5761 | if (rel != relocs | |
| 5762 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5763 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5764 | /* We have a new-style __tls_get_addr call with | |
| 5765 | a marker reloc. */ | |
| 5766 | ; | |
| 5767 | else | |
| 5768 | /* Mark this section as having an old-style call. */ | |
| 5769 | sec->has_tls_get_addr_call = 1; | |
| 5770 | } | |
| 5771 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5772 | } |
| cbf95972 AM |
5773 | |
| 5774 | /* We may need a .plt entry if the function this reloc | |
| 5775 | refers to is in a shared lib. */ | |
| 5776 | if (plt_list | |
| 5777 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5778 | return FALSE; | |
| 411e1bfb AM |
5779 | break; |
| 5780 | ||
| cbf95972 AM |
5781 | case R_PPC64_ADDR14: |
| 5782 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5783 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5784 | case R_PPC64_ADDR24: | |
| 5785 | goto dodyn; | |
| 5786 | ||
| 411e1bfb AM |
5787 | case R_PPC64_TPREL64: |
| 5788 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5789 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5790 | info->flags |= DF_STATIC_TLS; |
| 5791 | goto dotlstoc; | |
| 5792 | ||
| 5793 | case R_PPC64_DTPMOD64: | |
| 5794 | if (rel + 1 < rel_end | |
| 5795 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5796 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5797 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5798 | else |
| 951fd09b | 5799 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5800 | goto dotlstoc; |
| 5801 | ||
| 5802 | case R_PPC64_DTPREL64: | |
| 5803 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5804 | if (rel != relocs | |
| 5805 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5806 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5807 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5808 | Don't mark with TLS_DTPREL. */ | |
| 5809 | goto dodyn; | |
| 5810 | ||
| 5811 | dotlstoc: | |
| 5812 | sec->has_tls_reloc = 1; | |
| 5813 | if (h != NULL) | |
| 5814 | { | |
| 5815 | struct ppc_link_hash_entry *eh; | |
| 5816 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5817 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5818 | } |
| 5819 | else | |
| 5820 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5821 | rel->r_addend, tls_type)) | |
| 5822 | return FALSE; | |
| 5823 | ||
| 7c8fe5c4 AM |
5824 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5825 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5826 | { |
| 3a71aa26 AM |
5827 | bfd_size_type amt; |
| 5828 | ||
| e7b938ca | 5829 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5830 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5831 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5832 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5833 | return FALSE; | |
| 5834 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5835 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5836 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5837 | return FALSE; |
| 7c8fe5c4 AM |
5838 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5839 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5840 | } |
| 5841 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5842 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5843 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5844 | |
| 5845 | /* Mark the second slot of a GD or LD entry. | |
| 5846 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5847 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5848 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5849 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5850 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5851 | goto dodyn; |
| 5852 | ||
| 5853 | case R_PPC64_TPREL16: | |
| 5854 | case R_PPC64_TPREL16_LO: | |
| 5855 | case R_PPC64_TPREL16_HI: | |
| 5856 | case R_PPC64_TPREL16_HA: | |
| 5857 | case R_PPC64_TPREL16_DS: | |
| 5858 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5859 | case R_PPC64_TPREL16_HIGH: |
| 5860 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5861 | case R_PPC64_TPREL16_HIGHER: |
| 5862 | case R_PPC64_TPREL16_HIGHERA: | |
| 5863 | case R_PPC64_TPREL16_HIGHEST: | |
| 5864 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5865 | if (bfd_link_dll (info)) |
| 5866 | info->flags |= DF_STATIC_TLS; | |
| 5867 | goto dodyn; | |
| 5d1634d7 | 5868 | |
| e86ce104 | 5869 | case R_PPC64_ADDR64: |
| b9399fcf | 5870 | if (is_opd |
| 1e2f5b6e | 5871 | && rel + 1 < rel_end |
| 4ce794b7 | 5872 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5873 | { |
| 8387904d | 5874 | if (h != NULL) |
| 8c5b4e52 | 5875 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 1e2f5b6e | 5876 | } |
| e86ce104 AM |
5877 | /* Fall through. */ |
| 5878 | ||
| 65f38f15 AM |
5879 | case R_PPC64_ADDR16: |
| 5880 | case R_PPC64_ADDR16_DS: | |
| 5881 | case R_PPC64_ADDR16_HA: | |
| 5882 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5883 | case R_PPC64_ADDR16_HIGH: |
| 5884 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5885 | case R_PPC64_ADDR16_HIGHER: |
| 5886 | case R_PPC64_ADDR16_HIGHERA: | |
| 5887 | case R_PPC64_ADDR16_HIGHEST: | |
| 5888 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5889 | case R_PPC64_ADDR16_LO: | |
| 5890 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5891 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5892 | && rel->r_addend == 0) |
| 5893 | { | |
| 5894 | /* We may need a .plt entry if this reloc refers to a | |
| 5895 | function in a shared lib. */ | |
| 5896 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5897 | return FALSE; | |
| 5898 | h->pointer_equality_needed = 1; | |
| 5899 | } | |
| 5900 | /* Fall through. */ | |
| 5901 | ||
| 5902 | case R_PPC64_REL30: | |
| 5903 | case R_PPC64_REL32: | |
| 5904 | case R_PPC64_REL64: | |
| 65f38f15 | 5905 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5906 | case R_PPC64_UADDR16: |
| 5907 | case R_PPC64_UADDR32: | |
| 5908 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5909 | case R_PPC64_TOC: |
| 0e1862bb | 5910 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5911 | /* We may need a copy reloc. */ |
| f5385ebf | 5912 | h->non_got_ref = 1; |
| 81848ca0 | 5913 | |
| 41bd81ab | 5914 | /* Don't propagate .opd relocs. */ |
| b9399fcf | 5915 | if (NO_OPD_RELOCS && is_opd) |
| e86ce104 | 5916 | break; |
| e86ce104 | 5917 | |
| 65f38f15 AM |
5918 | /* If we are creating a shared library, and this is a reloc |
| 5919 | against a global symbol, or a non PC relative reloc | |
| 5920 | against a local symbol, then we need to copy the reloc | |
| 5921 | into the shared library. However, if we are linking with | |
| 5922 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5923 | global symbol which is defined in an object we are | |
| 5924 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5925 | this point we have not seen all the input files, so it is | |
| 5926 | possible that DEF_REGULAR is not set now but will be set | |
| 5927 | later (it is never cleared). In case of a weak definition, | |
| 5928 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5929 | a shared library. We account for that possibility below by | |
| f4656909 | 5930 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5931 | table entry. A similar situation occurs when creating |
| 5932 | shared libraries and symbol visibility changes render the | |
| 5933 | symbol local. | |
| 5934 | ||
| 5935 | If on the other hand, we are creating an executable, we | |
| 5936 | may need to keep relocations for symbols satisfied by a | |
| 5937 | dynamic library if we manage to avoid copy relocs for the | |
| 5938 | symbol. */ | |
| 411e1bfb | 5939 | dodyn: |
| 0e1862bb | 5940 | if ((bfd_link_pic (info) |
| 1d483afe | 5941 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5942 | || (h != NULL |
| 198f1157 | 5943 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5944 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5945 | || !h->def_regular)))) |
| f4656909 | 5946 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5947 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5948 | && h != NULL |
| 5949 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5950 | || !h->def_regular)) |
| 0e1862bb | 5951 | || (!bfd_link_pic (info) |
| 25f23106 | 5952 | && ifunc != NULL)) |
| 5bd4f169 | 5953 | { |
| 65f38f15 AM |
5954 | /* We must copy these reloc types into the output file. |
| 5955 | Create a reloc section in dynobj and make room for | |
| 5956 | this reloc. */ | |
| 5bd4f169 AM |
5957 | if (sreloc == NULL) |
| 5958 | { | |
| 83bac4b0 NC |
5959 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5960 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5961 | |
| 5bd4f169 | 5962 | if (sreloc == NULL) |
| 83bac4b0 | 5963 | return FALSE; |
| 5bd4f169 AM |
5964 | } |
| 5965 | ||
| 65f38f15 AM |
5966 | /* If this is a global symbol, we count the number of |
| 5967 | relocations we need for this symbol. */ | |
| 5968 | if (h != NULL) | |
| 5969 | { | |
| 19e08130 AM |
5970 | struct elf_dyn_relocs *p; |
| 5971 | struct elf_dyn_relocs **head; | |
| 5972 | ||
| ec338859 | 5973 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5974 | p = *head; |
| 5975 | if (p == NULL || p->sec != sec) | |
| 5976 | { | |
| 5977 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5978 | if (p == NULL) | |
| 5979 | return FALSE; | |
| 5980 | p->next = *head; | |
| 5981 | *head = p; | |
| 5982 | p->sec = sec; | |
| 5983 | p->count = 0; | |
| 5984 | p->pc_count = 0; | |
| 5985 | } | |
| 5986 | p->count += 1; | |
| 5987 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5988 | p->pc_count += 1; | |
| 65f38f15 AM |
5989 | } |
| 5990 | else | |
| 5991 | { | |
| ec338859 AM |
5992 | /* Track dynamic relocs needed for local syms too. |
| 5993 | We really need local syms available to do this | |
| 5994 | easily. Oh well. */ | |
| 19e08130 AM |
5995 | struct ppc_dyn_relocs *p; |
| 5996 | struct ppc_dyn_relocs **head; | |
| 5997 | bfd_boolean is_ifunc; | |
| ec338859 | 5998 | asection *s; |
| 6edfbbad | 5999 | void *vpp; |
| 87d72d41 | 6000 | Elf_Internal_Sym *isym; |
| 6edfbbad | 6001 | |
| 87d72d41 AM |
6002 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 6003 | abfd, r_symndx); | |
| 6004 | if (isym == NULL) | |
| b34976b6 | 6005 | return FALSE; |
| ec338859 | 6006 | |
| 87d72d41 AM |
6007 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 6008 | if (s == NULL) | |
| 6009 | s = sec; | |
| 6010 | ||
| 6edfbbad | 6011 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
6012 | head = (struct ppc_dyn_relocs **) vpp; |
| 6013 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 6014 | p = *head; | |
| 6015 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 6016 | p = p->next; | |
| 6017 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 6018 | { | |
| 6019 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6020 | if (p == NULL) | |
| 6021 | return FALSE; | |
| 6022 | p->next = *head; | |
| 6023 | *head = p; | |
| 6024 | p->sec = sec; | |
| 6025 | p->ifunc = is_ifunc; | |
| 6026 | p->count = 0; | |
| 6027 | } | |
| 6028 | p->count += 1; | |
| ec338859 | 6029 | } |
| 65f38f15 | 6030 | } |
| 5bd4f169 | 6031 | break; |
| 65f38f15 AM |
6032 | |
| 6033 | default: | |
| 96e0dda4 | 6034 | break; |
| 5bd4f169 AM |
6035 | } |
| 6036 | } | |
| 6037 | ||
| b34976b6 | 6038 | return TRUE; |
| 5bd4f169 AM |
6039 | } |
| 6040 | ||
| ee67d69a AM |
6041 | /* Merge backend specific data from an object file to the output |
| 6042 | object file when linking. */ | |
| 6043 | ||
| 6044 | static bfd_boolean | |
| 50e03d47 | 6045 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6046 | { |
| 50e03d47 | 6047 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6048 | unsigned long iflags, oflags; |
| 6049 | ||
| 6050 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6051 | return TRUE; | |
| 6052 | ||
| 6053 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6054 | return TRUE; | |
| 6055 | ||
| 50e03d47 | 6056 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6057 | return FALSE; |
| 6058 | ||
| 6059 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6060 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6061 | ||
| f6c7c3e8 | 6062 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6063 | { |
| 4eca0228 | 6064 | _bfd_error_handler |
| 695344c0 | 6065 | /* xgettext:c-format */ |
| 871b3ab2 | 6066 | (_("%pB uses unknown e_flags 0x%lx"), ibfd, iflags); |
| ee67d69a AM |
6067 | bfd_set_error (bfd_error_bad_value); |
| 6068 | return FALSE; | |
| 6069 | } | |
| f6c7c3e8 | 6070 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6071 | { |
| 4eca0228 | 6072 | _bfd_error_handler |
| 695344c0 | 6073 | /* xgettext:c-format */ |
| 871b3ab2 | 6074 | (_("%pB: ABI version %ld is not compatible with ABI version %ld output"), |
| ee67d69a AM |
6075 | ibfd, iflags, oflags); |
| 6076 | bfd_set_error (bfd_error_bad_value); | |
| 6077 | return FALSE; | |
| 6078 | } | |
| 6079 | ||
| 50e03d47 | 6080 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6081 | |
| ee67d69a | 6082 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6083 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6084 | |
| 6085 | return TRUE; | |
| 6086 | } | |
| 6087 | ||
| 6088 | static bfd_boolean | |
| 6089 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6090 | { | |
| 6091 | /* Print normal ELF private data. */ | |
| 6092 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6093 | ||
| 6094 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6095 | { | |
| 6096 | FILE *file = ptr; | |
| 6097 | ||
| ee67d69a AM |
6098 | fprintf (file, _("private flags = 0x%lx:"), |
| 6099 | elf_elfheader (abfd)->e_flags); | |
| 6100 | ||
| 6101 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6102 | fprintf (file, _(" [abiv%ld]"), | |
| 6103 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6104 | fputc ('\n', file); | |
| 6105 | } | |
| 6106 | ||
| 6107 | return TRUE; | |
| 6108 | } | |
| 6109 | ||
| 8387904d | 6110 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6111 | of the code entry point, and its section, which must be in the same |
| 6112 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6113 | |
| 6114 | static bfd_vma | |
| 6115 | opd_entry_value (asection *opd_sec, | |
| 6116 | bfd_vma offset, | |
| 6117 | asection **code_sec, | |
| aef36ac1 AM |
6118 | bfd_vma *code_off, |
| 6119 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6120 | { |
| 6121 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6122 | Elf_Internal_Rela *relocs; |
| 8387904d | 6123 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6124 | bfd_vma val; |
| 8387904d | 6125 | |
| 9f296da3 AM |
6126 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6127 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6128 | if (opd_sec->reloc_count == 0) |
| 6129 | { | |
| 729eabd5 | 6130 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6131 | |
| 729eabd5 AM |
6132 | if (contents == NULL) |
| 6133 | { | |
| 6134 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6135 | return (bfd_vma) -1; | |
| 6136 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6137 | } | |
| ee1e4ede | 6138 | |
| dbb3fbbb | 6139 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6140 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6141 | return (bfd_vma) -1; |
| 6142 | ||
| 729eabd5 | 6143 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6144 | if (code_sec != NULL) |
| 6145 | { | |
| 6146 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6147 | |
| aef36ac1 | 6148 | if (in_code_sec) |
| 4b85d634 | 6149 | { |
| aef36ac1 AM |
6150 | sec = *code_sec; |
| 6151 | if (sec->vma <= val | |
| 6152 | && val < sec->vma + sec->size) | |
| 6153 | likely = sec; | |
| 6154 | else | |
| 6155 | val = -1; | |
| 6156 | } | |
| 6157 | else | |
| 6158 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6159 | if (sec->vma <= val | |
| 6160 | && (sec->flags & SEC_LOAD) != 0 | |
| 6161 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6162 | likely = sec; | |
| 6163 | if (likely != NULL) | |
| 6164 | { | |
| 6165 | *code_sec = likely; | |
| 6166 | if (code_off != NULL) | |
| 6167 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6168 | } |
| 6169 | } | |
| aef36ac1 | 6170 | return val; |
| 4b85d634 AM |
6171 | } |
| 6172 | ||
| 0c8d6e5c | 6173 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6174 | |
| 729eabd5 | 6175 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6176 | if (relocs == NULL) |
| 6177 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6178 | /* PR 17512: file: df8e1fd6. */ |
| 6179 | if (relocs == NULL) | |
| 6180 | return (bfd_vma) -1; | |
| 645ea6a9 | 6181 | |
| 8387904d | 6182 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6183 | lo = relocs; |
| 8387904d | 6184 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6185 | val = (bfd_vma) -1; |
| 8387904d AM |
6186 | while (lo < hi) |
| 6187 | { | |
| 6188 | look = lo + (hi - lo) / 2; | |
| 6189 | if (look->r_offset < offset) | |
| 6190 | lo = look + 1; | |
| 6191 | else if (look->r_offset > offset) | |
| 6192 | hi = look; | |
| 6193 | else | |
| 6194 | { | |
| 0ffa91dd NC |
6195 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6196 | ||
| 8387904d AM |
6197 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6198 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6199 | { | |
| 6200 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6201 | asection *sec = NULL; |
| 8387904d | 6202 | |
| b53dfeb2 AM |
6203 | if (symndx >= symtab_hdr->sh_info |
| 6204 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6205 | { |
| 6206 | struct elf_link_hash_entry **sym_hashes; | |
| 6207 | struct elf_link_hash_entry *rh; | |
| 6208 | ||
| 6209 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6210 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6211 | if (rh != NULL) |
| 6212 | { | |
| 6213 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6214 | if (rh->root.type != bfd_link_hash_defined |
| 6215 | && rh->root.type != bfd_link_hash_defweak) | |
| 6216 | break; | |
| 6217 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6218 | { |
| bb854a36 AM |
6219 | val = rh->root.u.def.value; |
| 6220 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6221 | } |
| 6222 | } | |
| 6223 | } | |
| 6224 | ||
| 6225 | if (sec == NULL) | |
| 6226 | { | |
| 6227 | Elf_Internal_Sym *sym; | |
| 6228 | ||
| 6229 | if (symndx < symtab_hdr->sh_info) | |
| 6230 | { | |
| 6231 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6232 | if (sym == NULL) | |
| 6233 | { | |
| 6234 | size_t symcnt = symtab_hdr->sh_info; | |
| 6235 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6236 | symcnt, 0, | |
| 6237 | NULL, NULL, NULL); | |
| 6238 | if (sym == NULL) | |
| 6239 | break; | |
| 6240 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6241 | } | |
| 6242 | sym += symndx; | |
| 128205bb AM |
6243 | } |
| 6244 | else | |
| 6245 | { | |
| b53dfeb2 AM |
6246 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6247 | 1, symndx, | |
| 6248 | NULL, NULL, NULL); | |
| 128205bb AM |
6249 | if (sym == NULL) |
| 6250 | break; | |
| 128205bb | 6251 | } |
| b53dfeb2 AM |
6252 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6253 | if (sec == NULL) | |
| 6254 | break; | |
| 6255 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6256 | val = sym->st_value; | |
| 8387904d | 6257 | } |
| b53dfeb2 | 6258 | |
| 8387904d AM |
6259 | val += look->r_addend; |
| 6260 | if (code_off != NULL) | |
| 6261 | *code_off = val; | |
| 6262 | if (code_sec != NULL) | |
| aef36ac1 AM |
6263 | { |
| 6264 | if (in_code_sec && *code_sec != sec) | |
| 6265 | return -1; | |
| 6266 | else | |
| 6267 | *code_sec = sec; | |
| 6268 | } | |
| b53dfeb2 | 6269 | if (sec->output_section != NULL) |
| 8387904d | 6270 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6271 | } |
| 6272 | break; | |
| 6273 | } | |
| 6274 | } | |
| 645ea6a9 | 6275 | |
| 645ea6a9 | 6276 | return val; |
| 8387904d AM |
6277 | } |
| 6278 | ||
| aef36ac1 AM |
6279 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6280 | function size and set *CODE_OFF to the function's entry point, | |
| 6281 | otherwise return zero. */ | |
| 9f296da3 | 6282 | |
| aef36ac1 AM |
6283 | static bfd_size_type |
| 6284 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6285 | bfd_vma *code_off) | |
| 9f296da3 | 6286 | { |
| aef36ac1 AM |
6287 | bfd_size_type size; |
| 6288 | ||
| 6289 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6290 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6291 | return 0; | |
| 6292 | ||
| 6293 | size = 0; | |
| 6294 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6295 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6296 | ||
| 6297 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6298 | { |
| b07bca4e AM |
6299 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6300 | bfd_vma symval = sym->value; | |
| 6301 | ||
| 6302 | if (opd != NULL | |
| 6303 | && opd->adjust != NULL | |
| 6304 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6305 | { | |
| 6306 | /* opd_entry_value will use cached relocs that have been | |
| 6307 | adjusted, but with raw symbols. That means both local | |
| 6308 | and global symbols need adjusting. */ | |
| 6309 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6310 | if (adjust == -1) | |
| 6311 | return 0; | |
| 6312 | symval += adjust; | |
| 6313 | } | |
| 6314 | ||
| 6315 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6316 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6317 | return 0; | |
| 6318 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6319 | symbol. This size has nothing to do with the code size of the | |
| 6320 | function, which is what we're supposed to return, but the | |
| 6321 | code size isn't available without looking up the dot-sym. | |
| 6322 | However, doing that would be a waste of time particularly | |
| 6323 | since elf_find_function will look at the dot-sym anyway. | |
| 6324 | Now, elf_find_function will keep the largest size of any | |
| 6325 | function sym found at the code address of interest, so return | |
| 6326 | 1 here to avoid it incorrectly caching a larger function size | |
| 6327 | for a small function. This does mean we return the wrong | |
| 6328 | size for a new-ABI function of size 24, but all that does is | |
| 6329 | disable caching for such functions. */ | |
| 6330 | if (size == 24) | |
| 6331 | size = 1; | |
| 9f296da3 | 6332 | } |
| aef36ac1 AM |
6333 | else |
| 6334 | { | |
| 6335 | if (sym->section != sec) | |
| 6336 | return 0; | |
| 6337 | *code_off = sym->value; | |
| 6338 | } | |
| 6339 | if (size == 0) | |
| 6340 | size = 1; | |
| 6341 | return size; | |
| 9f296da3 AM |
6342 | } |
| 6343 | ||
| f378ab09 AM |
6344 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6345 | object with st_other localentry bits of zero, ie. its local entry | |
| 6346 | point coincides with its global entry point. */ | |
| 6347 | ||
| 6348 | static bfd_boolean | |
| 6349 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6350 | { | |
| 6351 | return (h != NULL | |
| 6352 | && h->type == STT_FUNC | |
| 6353 | && h->root.type == bfd_link_hash_defined | |
| 6354 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6355 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6356 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6357 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6358 | } | |
| 6359 | ||
| 854b41e7 AM |
6360 | /* Return true if symbol is defined in a regular object file. */ |
| 6361 | ||
| 6362 | static bfd_boolean | |
| 6363 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6364 | { | |
| 6365 | return ((h->root.type == bfd_link_hash_defined | |
| 6366 | || h->root.type == bfd_link_hash_defweak) | |
| 6367 | && h->root.u.def.section != NULL | |
| 6368 | && h->root.u.def.section->output_section != NULL); | |
| 6369 | } | |
| 6370 | ||
| b31867b6 AM |
6371 | /* If FDH is a function descriptor symbol, return the associated code |
| 6372 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6373 | ||
| 6374 | static struct ppc_link_hash_entry * | |
| 6375 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6376 | { | |
| 6377 | if (fdh->is_func_descriptor) | |
| 6378 | { | |
| 6379 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6380 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6381 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6382 | return fh; | |
| 6383 | } | |
| 6384 | return NULL; | |
| 6385 | } | |
| 6386 | ||
| 6387 | /* If FH is a function code entry symbol, return the associated | |
| 6388 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6389 | ||
| 6390 | static struct ppc_link_hash_entry * | |
| 6391 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6392 | { | |
| 6393 | if (fh->oh != NULL | |
| 6394 | && fh->oh->is_func_descriptor) | |
| 6395 | { | |
| 6396 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6397 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6398 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6399 | return fdh; | |
| 6400 | } | |
| 6401 | return NULL; | |
| 6402 | } | |
| 6403 | ||
| 8c5b4e52 AM |
6404 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6405 | ||
| 6406 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6407 | ||
| 6408 | static bfd_boolean | |
| 6409 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6410 | { | |
| 6411 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6412 | ||
| 6413 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6414 | { | |
| 6415 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6416 | htab->need_func_desc_adj = 0; | |
| 6417 | } | |
| 6418 | return bfd_elf_gc_sections (abfd, info); | |
| 6419 | } | |
| 6420 | ||
| 74f0fb50 AM |
6421 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6422 | ||
| 6423 | static void | |
| 6424 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6425 | { | |
| 6426 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6427 | struct bfd_sym_chain *sym; | |
| 6428 | ||
| 4dfe6ac6 NC |
6429 | if (htab == NULL) |
| 6430 | return; | |
| 6431 | ||
| 74f0fb50 AM |
6432 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6433 | { | |
| b31867b6 | 6434 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6435 | asection *sec; |
| 6436 | ||
| 6437 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6438 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6439 | if (eh == NULL) |
| 6440 | continue; | |
| 6441 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6442 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6443 | continue; | |
| 6444 | ||
| b31867b6 AM |
6445 | fh = defined_code_entry (eh); |
| 6446 | if (fh != NULL) | |
| 74f0fb50 | 6447 | { |
| b31867b6 | 6448 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6449 | sec->flags |= SEC_KEEP; |
| 6450 | } | |
| 6451 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6452 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6453 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6454 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6455 | sec->flags |= SEC_KEEP; |
| 6456 | ||
| 6457 | sec = eh->elf.root.u.def.section; | |
| 6458 | sec->flags |= SEC_KEEP; | |
| 6459 | } | |
| 6460 | } | |
| 6461 | ||
| 64d03ab5 AM |
6462 | /* Mark sections containing dynamically referenced symbols. When |
| 6463 | building shared libraries, we must assume that any visible symbol is | |
| 6464 | referenced. */ | |
| 6465 | ||
| 6466 | static bfd_boolean | |
| 6467 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6468 | { | |
| 6469 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6470 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6471 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6472 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6473 | |
| 64d03ab5 | 6474 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6475 | fdh = defined_func_desc (eh); |
| 6476 | if (fdh != NULL) | |
| 6477 | eh = fdh; | |
| 64d03ab5 AM |
6478 | |
| 6479 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6480 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 87e79a65 | 6481 | && ((eh->elf.ref_dynamic && !eh->elf.forced_local) |
| 1c9177d9 | 6482 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6483 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6484 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6485 | && (!bfd_link_executable (info) |
| e278ae05 | 6486 | || info->gc_keep_exported |
| b407645f AM |
6487 | || info->export_dynamic |
| 6488 | || (eh->elf.dynamic | |
| 6489 | && d != NULL | |
| 6490 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6491 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6492 | || !bfd_hide_sym_by_version (info->version_info, |
| 6493 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6494 | { |
| 6495 | asection *code_sec; | |
| b31867b6 | 6496 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6497 | |
| 6498 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6499 | ||
| 6500 | /* Function descriptor syms cause the associated | |
| 6501 | function code sym section to be marked. */ | |
| b31867b6 AM |
6502 | fh = defined_code_entry (eh); |
| 6503 | if (fh != NULL) | |
| 6504 | { | |
| 6505 | code_sec = fh->elf.root.u.def.section; | |
| 6506 | code_sec->flags |= SEC_KEEP; | |
| 6507 | } | |
| 64d03ab5 AM |
6508 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6509 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6510 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6511 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6512 | code_sec->flags |= SEC_KEEP; |
| 6513 | } | |
| 6514 | ||
| 6515 | return TRUE; | |
| 6516 | } | |
| 6517 | ||
| 5bd4f169 AM |
6518 | /* Return the section that should be marked against GC for a given |
| 6519 | relocation. */ | |
| 6520 | ||
| 6521 | static asection * | |
| 4ce794b7 | 6522 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6523 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6524 | Elf_Internal_Rela *rel, |
| 6525 | struct elf_link_hash_entry *h, | |
| 6526 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6527 | { |
| ccfa59ea AM |
6528 | asection *rsec; |
| 6529 | ||
| ccfa59ea AM |
6530 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6531 | function sections, as all functions are referenced in .opd. */ | |
| 6532 | rsec = NULL; | |
| 6533 | if (get_opd_info (sec) != NULL) | |
| 6534 | return rsec; | |
| 1e2f5b6e | 6535 | |
| 5bd4f169 AM |
6536 | if (h != NULL) |
| 6537 | { | |
| 04c9666a | 6538 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6539 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6540 | |
| 4ce794b7 | 6541 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6542 | switch (r_type) |
| 5bd4f169 AM |
6543 | { |
| 6544 | case R_PPC64_GNU_VTINHERIT: | |
| 6545 | case R_PPC64_GNU_VTENTRY: | |
| 6546 | break; | |
| 6547 | ||
| 6548 | default: | |
| 6549 | switch (h->root.type) | |
| 6550 | { | |
| 6551 | case bfd_link_hash_defined: | |
| 6552 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6553 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6554 | fdh = defined_func_desc (eh); |
| 6555 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6556 | { |
| 6557 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6558 | a call reloc. Mark the function descriptor too | |
| 6559 | against garbage collection. */ | |
| 6560 | fdh->elf.mark = 1; | |
| 60d67dc8 AM |
6561 | if (fdh->elf.is_weakalias) |
| 6562 | weakdef (&fdh->elf)->mark = 1; | |
| 8c5b4e52 AM |
6563 | eh = fdh; |
| 6564 | } | |
| 1e2f5b6e AM |
6565 | |
| 6566 | /* Function descriptor syms cause the associated | |
| 6567 | function code sym section to be marked. */ | |
| b31867b6 AM |
6568 | fh = defined_code_entry (eh); |
| 6569 | if (fh != NULL) | |
| ccfa59ea AM |
6570 | { |
| 6571 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6572 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6573 | |
| b31867b6 | 6574 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6575 | } |
| 8387904d AM |
6576 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6577 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6578 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6579 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6580 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6581 | else |
| 1e2f5b6e AM |
6582 | rsec = h->root.u.def.section; |
| 6583 | break; | |
| 5bd4f169 AM |
6584 | |
| 6585 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6586 | rsec = h->root.u.c.p->section; |
| 6587 | break; | |
| 5bd4f169 AM |
6588 | |
| 6589 | default: | |
| fb34365b | 6590 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6591 | } |
| 6592 | } | |
| 6593 | } | |
| 6594 | else | |
| 6595 | { | |
| 74f0fb50 | 6596 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6597 | |
| 6598 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6599 | opd = get_opd_info (rsec); |
| 6600 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6601 | { |
| 74f0fb50 | 6602 | rsec->gc_mark = 1; |
| ccfa59ea | 6603 | |
| 51aecdc5 | 6604 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6605 | } |
| 5bd4f169 AM |
6606 | } |
| 6607 | ||
| 1e2f5b6e | 6608 | return rsec; |
| 5bd4f169 AM |
6609 | } |
| 6610 | ||
| deb0e272 AM |
6611 | /* The maximum size of .sfpr. */ |
| 6612 | #define SFPR_MAX (218*4) | |
| 6613 | ||
| 6614 | struct sfpr_def_parms | |
| 6615 | { | |
| 699733f6 AM |
6616 | const char name[12]; |
| 6617 | unsigned char lo, hi; | |
| deb0e272 AM |
6618 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6619 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6620 | }; | |
| 6621 | ||
| a4b6fadd AM |
6622 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6623 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6624 | instead. */ | |
| deb0e272 | 6625 | |
| 4dfe6ac6 | 6626 | static bfd_boolean |
| a4b6fadd AM |
6627 | sfpr_define (struct bfd_link_info *info, |
| 6628 | const struct sfpr_def_parms *parm, | |
| 6629 | asection *stub_sec) | |
| deb0e272 AM |
6630 | { |
| 6631 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6632 | unsigned int i; | |
| 6633 | size_t len = strlen (parm->name); | |
| 6634 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6635 | char sym[16]; |
| deb0e272 | 6636 | |
| 4dfe6ac6 NC |
6637 | if (htab == NULL) |
| 6638 | return FALSE; | |
| 6639 | ||
| deb0e272 AM |
6640 | memcpy (sym, parm->name, len); |
| 6641 | sym[len + 2] = 0; | |
| 6642 | ||
| 6643 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6644 | { | |
| a4b6fadd | 6645 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6646 | |
| 6647 | sym[len + 0] = i / 10 + '0'; | |
| 6648 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6649 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6650 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6651 | if (stub_sec != NULL) |
| deb0e272 | 6652 | { |
| a4b6fadd AM |
6653 | if (h != NULL |
| 6654 | && h->elf.root.type == bfd_link_hash_defined | |
| 6655 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6656 | { | |
| 6657 | struct elf_link_hash_entry *s; | |
| 6658 | char buf[32]; | |
| 6659 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6660 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6661 | if (s == NULL) | |
| 6662 | return FALSE; | |
| 6663 | if (s->root.type == bfd_link_hash_new | |
| 6664 | || (s->root.type = bfd_link_hash_defined | |
| 6665 | && s->root.u.def.section == stub_sec)) | |
| 6666 | { | |
| 6667 | s->root.type = bfd_link_hash_defined; | |
| 6668 | s->root.u.def.section = stub_sec; | |
| 7dda8d3c | 6669 | s->root.u.def.value = (stub_sec->size - htab->sfpr->size |
| a4b6fadd AM |
6670 | + h->elf.root.u.def.value); |
| 6671 | s->ref_regular = 1; | |
| 6672 | s->def_regular = 1; | |
| 6673 | s->ref_regular_nonweak = 1; | |
| 6674 | s->forced_local = 1; | |
| 6675 | s->non_elf = 0; | |
| 6676 | s->root.linker_def = 1; | |
| 6677 | } | |
| 6678 | } | |
| 6679 | continue; | |
| 6680 | } | |
| 6681 | if (h != NULL) | |
| 6682 | { | |
| 6683 | h->save_res = 1; | |
| 6684 | if (!h->elf.def_regular) | |
| deb0e272 | 6685 | { |
| a4b6fadd AM |
6686 | h->elf.root.type = bfd_link_hash_defined; |
| 6687 | h->elf.root.u.def.section = htab->sfpr; | |
| 6688 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6689 | h->elf.type = STT_FUNC; | |
| 6690 | h->elf.def_regular = 1; | |
| b32547cd | 6691 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6692 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6693 | writing = TRUE; | |
| deb0e272 | 6694 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6695 | { |
| 6696 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6697 | if (htab->sfpr->contents == NULL) | |
| 6698 | return FALSE; | |
| 6699 | } | |
| deb0e272 AM |
6700 | } |
| 6701 | } | |
| 6702 | if (writing) | |
| 6703 | { | |
| 6704 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6705 | if (i != parm->hi) | |
| 6706 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6707 | else | |
| 6708 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6709 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6710 | } | |
| 6711 | } | |
| 6712 | ||
| 6713 | return TRUE; | |
| 6714 | } | |
| 6715 | ||
| 6716 | static bfd_byte * | |
| 6717 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6718 | { | |
| 6719 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6720 | return p + 4; | |
| 6721 | } | |
| 6722 | ||
| 6723 | static bfd_byte * | |
| 6724 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6725 | { | |
| 6726 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6727 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6728 | p = p + 4; |
| 6729 | bfd_put_32 (abfd, BLR, p); | |
| 6730 | return p + 4; | |
| 6731 | } | |
| 6732 | ||
| 6733 | static bfd_byte * | |
| 6734 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6735 | { | |
| 6736 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6737 | return p + 4; | |
| 6738 | } | |
| 6739 | ||
| 6740 | static bfd_byte * | |
| 6741 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6742 | { | |
| a078d95a | 6743 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6744 | p = p + 4; |
| 6745 | p = restgpr0 (abfd, p, r); | |
| 6746 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6747 | p = p + 4; | |
| 6748 | if (r == 29) | |
| 6749 | { | |
| 6750 | p = restgpr0 (abfd, p, 30); | |
| 6751 | p = restgpr0 (abfd, p, 31); | |
| 6752 | } | |
| 6753 | bfd_put_32 (abfd, BLR, p); | |
| 6754 | return p + 4; | |
| 6755 | } | |
| 6756 | ||
| 6757 | static bfd_byte * | |
| 6758 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6759 | { | |
| 6760 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6761 | return p + 4; | |
| 6762 | } | |
| 6763 | ||
| 6764 | static bfd_byte * | |
| 6765 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6766 | { | |
| 6767 | p = savegpr1 (abfd, p, r); | |
| 6768 | bfd_put_32 (abfd, BLR, p); | |
| 6769 | return p + 4; | |
| 6770 | } | |
| 6771 | ||
| 6772 | static bfd_byte * | |
| 6773 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6774 | { | |
| 6775 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6776 | return p + 4; | |
| 6777 | } | |
| 6778 | ||
| 6779 | static bfd_byte * | |
| 6780 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6781 | { | |
| 6782 | p = restgpr1 (abfd, p, r); | |
| 6783 | bfd_put_32 (abfd, BLR, p); | |
| 6784 | return p + 4; | |
| 6785 | } | |
| 6786 | ||
| 6787 | static bfd_byte * | |
| 6788 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6789 | { | |
| 6790 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6791 | return p + 4; | |
| 6792 | } | |
| 6793 | ||
| 6794 | static bfd_byte * | |
| 6795 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6796 | { | |
| 6797 | p = savefpr (abfd, p, r); | |
| a078d95a | 6798 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6799 | p = p + 4; |
| 6800 | bfd_put_32 (abfd, BLR, p); | |
| 6801 | return p + 4; | |
| 6802 | } | |
| 6803 | ||
| 6804 | static bfd_byte * | |
| 6805 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6806 | { | |
| 6807 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6808 | return p + 4; | |
| 6809 | } | |
| 6810 | ||
| 6811 | static bfd_byte * | |
| 6812 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6813 | { | |
| a078d95a | 6814 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6815 | p = p + 4; |
| 6816 | p = restfpr (abfd, p, r); | |
| 6817 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6818 | p = p + 4; | |
| 6819 | if (r == 29) | |
| 6820 | { | |
| 6821 | p = restfpr (abfd, p, 30); | |
| 6822 | p = restfpr (abfd, p, 31); | |
| 6823 | } | |
| 6824 | bfd_put_32 (abfd, BLR, p); | |
| 6825 | return p + 4; | |
| 6826 | } | |
| 6827 | ||
| 6828 | static bfd_byte * | |
| 6829 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6830 | { | |
| 6831 | p = savefpr (abfd, p, r); | |
| 6832 | bfd_put_32 (abfd, BLR, p); | |
| 6833 | return p + 4; | |
| 6834 | } | |
| 6835 | ||
| 6836 | static bfd_byte * | |
| 6837 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6838 | { | |
| 6839 | p = restfpr (abfd, p, r); | |
| 6840 | bfd_put_32 (abfd, BLR, p); | |
| 6841 | return p + 4; | |
| 6842 | } | |
| 6843 | ||
| 6844 | static bfd_byte * | |
| 6845 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6846 | { | |
| 6847 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6848 | p = p + 4; | |
| 6849 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6850 | return p + 4; | |
| 6851 | } | |
| 6852 | ||
| 6853 | static bfd_byte * | |
| 6854 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6855 | { | |
| 6856 | p = savevr (abfd, p, r); | |
| 6857 | bfd_put_32 (abfd, BLR, p); | |
| 6858 | return p + 4; | |
| 6859 | } | |
| 6860 | ||
| 6861 | static bfd_byte * | |
| 6862 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6863 | { | |
| 6864 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6865 | p = p + 4; | |
| 6866 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6867 | return p + 4; | |
| 6868 | } | |
| 6869 | ||
| 6870 | static bfd_byte * | |
| 6871 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6872 | { | |
| 6873 | p = restvr (abfd, p, r); | |
| 6874 | bfd_put_32 (abfd, BLR, p); | |
| 6875 | return p + 4; | |
| 6876 | } | |
| 6877 | ||
| e86ce104 AM |
6878 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6879 | information on function code symbol entries to their corresponding | |
| 6880 | function descriptor symbol entries. */ | |
| deb0e272 | 6881 | |
| b34976b6 | 6882 | static bfd_boolean |
| 4ce794b7 | 6883 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6884 | { |
| e86ce104 | 6885 | struct bfd_link_info *info; |
| 65f38f15 | 6886 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6887 | struct ppc_link_hash_entry *fh; |
| 6888 | struct ppc_link_hash_entry *fdh; | |
| 6889 | bfd_boolean force_local; | |
| 5bd4f169 | 6890 | |
| 50bc7936 AM |
6891 | fh = (struct ppc_link_hash_entry *) h; |
| 6892 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6893 | return TRUE; |
| e86ce104 | 6894 | |
| 8c5b4e52 AM |
6895 | if (!fh->is_func) |
| 6896 | return TRUE; | |
| 6897 | ||
| 6898 | if (fh->elf.root.root.string[0] != '.' | |
| 6899 | || fh->elf.root.root.string[1] == '\0') | |
| 6900 | return TRUE; | |
| 6901 | ||
| 4ce794b7 | 6902 | info = inf; |
| 65f38f15 | 6903 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6904 | if (htab == NULL) |
| 6905 | return FALSE; | |
| 5bd4f169 | 6906 | |
| 8c5b4e52 AM |
6907 | /* Find the corresponding function descriptor symbol. */ |
| 6908 | fdh = lookup_fdh (fh, htab); | |
| 6909 | ||
| c09bdfe5 AM |
6910 | /* Resolve undefined references to dot-symbols as the value |
| 6911 | in the function descriptor, if we have one in a regular object. | |
| 6912 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6913 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
6914 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 6915 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 6916 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 6917 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
6918 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 6919 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6920 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6921 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6922 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6923 | { |
| b31867b6 | 6924 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6925 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6926 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6927 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6928 | } |
| 6929 | ||
| 8c5b4e52 AM |
6930 | if (!fh->elf.dynamic) |
| 6931 | { | |
| 6932 | struct plt_entry *ent; | |
| 5bd4f169 | 6933 | |
| 8c5b4e52 AM |
6934 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 6935 | if (ent->plt.refcount > 0) | |
| 6936 | break; | |
| 6937 | if (ent == NULL) | |
| 6938 | return TRUE; | |
| 6939 | } | |
| 5bd4f169 | 6940 | |
| 8c5b4e52 | 6941 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 6942 | if (fdh == NULL |
| 0e1862bb | 6943 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6944 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6945 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6946 | { | |
| 908b32fc | 6947 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6948 | if (fdh == NULL) |
| 6949 | return FALSE; | |
| 50bc7936 | 6950 | } |
| 648cca2c | 6951 | |
| 8c5b4e52 | 6952 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
6953 | if (fdh != NULL |
| 6954 | && fdh->fake | |
| 8c5b4e52 AM |
6955 | && (fh->elf.root.type == bfd_link_hash_defined |
| 6956 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 6957 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 6958 | |
| 8c5b4e52 AM |
6959 | /* Transfer dynamic linking information to the function descriptor. */ |
| 6960 | if (fdh != NULL) | |
| 6961 | { | |
| f5385ebf AM |
6962 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6963 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6964 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6965 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
6966 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 6967 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 6968 | || fh->elf.type == STT_FUNC | |
| 6969 | || fh->elf.type == STT_GNU_IFUNC); | |
| 6970 | move_plt_plist (fh, fdh); | |
| 6971 | ||
| 6972 | if (!fdh->elf.forced_local | |
| 6973 | && fh->elf.dynindx != -1) | |
| 6974 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 6975 | return FALSE; | |
| e86ce104 AM |
6976 | } |
| 6977 | ||
| 50bc7936 AM |
6978 | /* Now that the info is on the function descriptor, clear the |
| 6979 | function code sym info. Any function code syms for which we | |
| 6980 | don't have a definition in a regular file, we force local. | |
| 6981 | This prevents a shared library from exporting syms that have | |
| 6982 | been imported from another library. Function code syms that | |
| 6983 | are really in the library we must leave global to prevent the | |
| 6984 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6985 | force_local = (!fh->elf.def_regular |
| 6986 | || fdh == NULL | |
| 6987 | || !fdh->elf.def_regular | |
| 6988 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6989 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6990 | ||
| b34976b6 | 6991 | return TRUE; |
| e86ce104 | 6992 | } |
| 40b8271b | 6993 | |
| a4b6fadd AM |
6994 | static const struct sfpr_def_parms save_res_funcs[] = |
| 6995 | { | |
| 6996 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6997 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6998 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6999 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7000 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7001 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7002 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7003 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7004 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7005 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7006 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7007 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7008 | }; | |
| 7009 | ||
| e86ce104 | 7010 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7011 | this hook to a) provide some gcc support functions, and b) transfer |
| 7012 | dynamic linking information gathered so far on function code symbol | |
| 7013 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7014 | |
| b34976b6 | 7015 | static bfd_boolean |
| 4ce794b7 AM |
7016 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7017 | struct bfd_link_info *info) | |
| e86ce104 AM |
7018 | { |
| 7019 | struct ppc_link_hash_table *htab; | |
| 7020 | ||
| 7021 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7022 | if (htab == NULL) |
| 7023 | return FALSE; | |
| 7024 | ||
| b32547cd AM |
7025 | /* Provide any missing _save* and _rest* functions. */ |
| 7026 | if (htab->sfpr != NULL) | |
| 7027 | { | |
| 7028 | unsigned int i; | |
| 7029 | ||
| 7030 | htab->sfpr->size = 0; | |
| 7031 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7032 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7033 | return FALSE; | |
| 7034 | if (htab->sfpr->size == 0) | |
| 7035 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7036 | } | |
| 7037 | ||
| 7038 | if (bfd_link_relocatable (info)) | |
| 7039 | return TRUE; | |
| 7040 | ||
| 7041 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7042 | { |
| 7043 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7044 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7045 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7046 | if (!htab->elf.hgot->def_regular |
| 7047 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7048 | { | |
| 7049 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7050 | htab->elf.hgot->root.u.def.value = 0; | |
| 7051 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7052 | htab->elf.hgot->def_regular = 1; | |
| 7053 | htab->elf.hgot->root.linker_def = 1; | |
| 7054 | } | |
| dba6fa9b | 7055 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7056 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7057 | | STV_HIDDEN); | |
| 7058 | } | |
| c66bb0ee | 7059 | |
| 8c5b4e52 AM |
7060 | if (htab->need_func_desc_adj) |
| 7061 | { | |
| 7062 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7063 | htab->need_func_desc_adj = 0; | |
| 7064 | } | |
| 805fc799 | 7065 | |
| b34976b6 | 7066 | return TRUE; |
| e86ce104 AM |
7067 | } |
| 7068 | ||
| 98bbb1b8 | 7069 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| a345bc8d | 7070 | |
| 98bbb1b8 | 7071 | static asection * |
| a345bc8d AM |
7072 | readonly_dynrelocs (struct elf_link_hash_entry *h) |
| 7073 | { | |
| 7074 | struct ppc_link_hash_entry *eh; | |
| 7075 | struct elf_dyn_relocs *p; | |
| 7076 | ||
| 7077 | eh = (struct ppc_link_hash_entry *) h; | |
| 7078 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7079 | { | |
| 7080 | asection *s = p->sec->output_section; | |
| 7081 | ||
| 7082 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 98bbb1b8 | 7083 | return p->sec; |
| a345bc8d | 7084 | } |
| 98bbb1b8 | 7085 | return NULL; |
| a345bc8d AM |
7086 | } |
| 7087 | ||
| d311bc8b | 7088 | /* Return true if we have dynamic relocs against H or any of its weak |
| ab2477e1 AM |
7089 | aliases, that apply to read-only sections. Cannot be used after |
| 7090 | size_dynamic_sections. */ | |
| d311bc8b AM |
7091 | |
| 7092 | static bfd_boolean | |
| 7093 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7094 | { | |
| 7095 | struct ppc_link_hash_entry *eh; | |
| 7096 | ||
| 7097 | eh = (struct ppc_link_hash_entry *) h; | |
| 7098 | do | |
| 7099 | { | |
| 7100 | if (readonly_dynrelocs (&eh->elf)) | |
| 7101 | return TRUE; | |
| ab2477e1 | 7102 | eh = (struct ppc_link_hash_entry *) eh->elf.u.alias; |
| d311bc8b AM |
7103 | } while (eh != NULL && &eh->elf != h); |
| 7104 | ||
| 7105 | return FALSE; | |
| 7106 | } | |
| 8a2058b5 | 7107 | |
| 8a9e8e72 AM |
7108 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7109 | ||
| 7110 | static bfd_boolean | |
| 7111 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7112 | { | |
| 7113 | struct elf_dyn_relocs *p; | |
| 7114 | ||
| 7115 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7116 | if (p->pc_count != 0) | |
| 7117 | return TRUE; | |
| 7118 | return FALSE; | |
| 7119 | } | |
| 7120 | ||
| 8a2058b5 AM |
7121 | /* Return true if a global entry stub will be created for H. Valid |
| 7122 | for ELFv2 before plt entries have been allocated. */ | |
| 7123 | ||
| 7124 | static bfd_boolean | |
| 7125 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7126 | { | |
| 7127 | struct plt_entry *pent; | |
| 7128 | ||
| 7129 | if (!h->pointer_equality_needed | |
| 7130 | || h->def_regular) | |
| 7131 | return FALSE; | |
| 7132 | ||
| 7133 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7134 | if (pent->plt.refcount > 0 | |
| 7135 | && pent->addend == 0) | |
| 7136 | return TRUE; | |
| 7137 | ||
| 7138 | return FALSE; | |
| 7139 | } | |
| 7140 | ||
| e86ce104 AM |
7141 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7142 | regular object. The current definition is in some section of the | |
| 7143 | dynamic object, but we're not including those sections. We have to | |
| 7144 | change the definition to something the rest of the link can | |
| 7145 | understand. */ | |
| 7146 | ||
| b34976b6 | 7147 | static bfd_boolean |
| 4ce794b7 AM |
7148 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7149 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7150 | { |
| 7151 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7152 | asection *s, *srel; |
| e86ce104 AM |
7153 | |
| 7154 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7155 | if (htab == NULL) |
| 7156 | return FALSE; | |
| e86ce104 AM |
7157 | |
| 7158 | /* Deal with function syms. */ | |
| 7159 | if (h->type == STT_FUNC | |
| e054468f | 7160 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7161 | || h->needs_plt) |
| e86ce104 | 7162 | { |
| 529fe20e AM |
7163 | bfd_boolean local = (((struct ppc_link_hash_entry *) h)->save_res |
| 7164 | || SYMBOL_CALLS_LOCAL (info, h) | |
| 7165 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 7166 | /* Discard dyn_relocs when non-pic if we've decided that a | |
| 7167 | function symbol is local and not an ifunc. We keep dynamic | |
| 7168 | relocs for ifuncs when local rather than always emitting a | |
| 7169 | plt call stub for them and defining the symbol on the call | |
| 7170 | stub. We can't do that for ELFv1 anyway (a function symbol | |
| 7171 | is defined on a descriptor, not code) and it can be faster at | |
| 7172 | run-time due to not needing to bounce through a stub. The | |
| 7173 | dyn_relocs for ifuncs will be applied even in a static | |
| 7174 | executable. */ | |
| 7175 | if (!bfd_link_pic (info) | |
| 7176 | && h->type != STT_GNU_IFUNC | |
| 7177 | && local) | |
| 7178 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 7179 | ||
| e86ce104 AM |
7180 | /* Clear procedure linkage table information for any symbol that |
| 7181 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7182 | struct plt_entry *ent; |
| 7183 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7184 | if (ent->plt.refcount > 0) | |
| 7185 | break; | |
| 8387904d | 7186 | if (ent == NULL |
| 529fe20e | 7187 | || (h->type != STT_GNU_IFUNC && local)) |
| 40b8271b | 7188 | { |
| 411e1bfb | 7189 | h->plt.plist = NULL; |
| f5385ebf | 7190 | h->needs_plt = 0; |
| d1eca1e4 | 7191 | h->pointer_equality_needed = 0; |
| 40b8271b | 7192 | } |
| 8a2058b5 | 7193 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7194 | { |
| d1eca1e4 AM |
7195 | /* Taking a function's address in a read/write section |
| 7196 | doesn't require us to define the function symbol in the | |
| 7197 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7198 | be used instead. The reason we prefer a few more dynamic |
| 7199 | relocs is that calling via a global entry stub costs a | |
| 7200 | few more instructions, and pointer_equality_needed causes | |
| 7201 | extra work in ld.so when resolving these symbols. */ | |
| 529fe20e | 7202 | if (global_entry_stub (h)) |
| d1eca1e4 | 7203 | { |
| ab2477e1 | 7204 | if (!readonly_dynrelocs (h)) |
| 529fe20e AM |
7205 | { |
| 7206 | h->pointer_equality_needed = 0; | |
| 7207 | /* If we haven't seen a branch reloc then we don't need | |
| 7208 | a plt entry. */ | |
| 7209 | if (!h->needs_plt) | |
| 7210 | h->plt.plist = NULL; | |
| 7211 | } | |
| 7212 | else if (!bfd_link_pic (info)) | |
| 7213 | /* We are going to be defining the function symbol on the | |
| 7214 | plt stub, so no dyn_relocs needed when non-pic. */ | |
| 7215 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| d1eca1e4 AM |
7216 | } |
| 7217 | ||
| 3988aed5 AM |
7218 | /* ELFv2 function symbols can't have copy relocs. */ |
| 7219 | return TRUE; | |
| 7220 | } | |
| 7221 | else if (!h->needs_plt | |
| ab2477e1 | 7222 | && !readonly_dynrelocs (h)) |
| 3988aed5 AM |
7223 | { |
| 7224 | /* If we haven't seen a branch reloc then we don't need a | |
| 7225 | plt entry. */ | |
| 7226 | h->plt.plist = NULL; | |
| 7227 | h->pointer_equality_needed = 0; | |
| a345bc8d AM |
7228 | return TRUE; |
| 7229 | } | |
| 5bd4f169 | 7230 | } |
| bbd7ec4a | 7231 | else |
| 411e1bfb | 7232 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7233 | |
| 7234 | /* If this is a weak symbol, and there is a real definition, the | |
| 7235 | processor independent code will have arranged for us to see the | |
| 7236 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7237 | if (h->is_weakalias) |
| 5bd4f169 | 7238 | { |
| 60d67dc8 AM |
7239 | struct elf_link_hash_entry *def = weakdef (h); |
| 7240 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7241 | h->root.u.def.section = def->root.u.def.section; | |
| 7242 | h->root.u.def.value = def->root.u.def.value; | |
| 4a7e5234 AM |
7243 | if (def->root.u.def.section == htab->elf.sdynbss |
| 7244 | || def->root.u.def.section == htab->elf.sdynrelro) | |
| 7245 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| b34976b6 | 7246 | return TRUE; |
| 5bd4f169 AM |
7247 | } |
| 7248 | ||
| 5bd4f169 AM |
7249 | /* If we are creating a shared library, we must presume that the |
| 7250 | only references to the symbol are via the global offset table. | |
| 7251 | For such cases we need not do anything here; the relocations will | |
| 7252 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7253 | if (bfd_link_pic (info)) |
| b34976b6 | 7254 | return TRUE; |
| 5bd4f169 | 7255 | |
| 65f38f15 AM |
7256 | /* If there are no references to this symbol that do not use the |
| 7257 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7258 | if (!h->non_got_ref) |
| b34976b6 | 7259 | return TRUE; |
| 65f38f15 | 7260 | |
| b186458a | 7261 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7262 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7263 | |
| d93d1c80 AM |
7264 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7265 | || info->nocopyreloc | |
| a127494f | 7266 | |
| dce2246a | 7267 | /* If we don't find any dynamic relocs in read-only sections, then |
| d93d1c80 | 7268 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| d311bc8b | 7269 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7270 | |
| d93d1c80 AM |
7271 | /* Protected variables do not work with .dynbss. The copy in |
| 7272 | .dynbss won't be used by the shared library with the protected | |
| 7273 | definition for the variable. Text relocations are preferable | |
| 7274 | to an incorrect program. */ | |
| 7275 | || h->protected_def) | |
| 529fe20e | 7276 | return TRUE; |
| a127494f | 7277 | |
| 5d35169e | 7278 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7279 | { |
| 7280 | /* We should never get here, but unfortunately there are versions | |
| 7281 | of gcc out there that improperly (for this ABI) put initialized | |
| 7282 | function pointers, vtable refs and suchlike in read-only | |
| 7283 | sections. Allow them to proceed, but warn that this might | |
| 7284 | break at runtime. */ | |
| 25f53a85 | 7285 | info->callbacks->einfo |
| c1c8c1ef | 7286 | (_("%P: copy reloc against `%pT' requires lazy plt linking; " |
| 25f53a85 | 7287 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7288 | h->root.root.string); |
| 7289 | } | |
| 5d35169e AM |
7290 | |
| 7291 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7292 | is not a function. */ | |
| 7293 | ||
| 5bd4f169 AM |
7294 | /* We must allocate the symbol in our .dynbss section, which will |
| 7295 | become part of the .bss section of the executable. There will be | |
| 7296 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7297 | object will contain position independent code, so all references | |
| 7298 | from the dynamic object to this symbol will go through the global | |
| 7299 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7300 | determine the address it must put in the global offset table, so | |
| 7301 | both the dynamic object and the regular object will refer to the | |
| 7302 | same memory location for the variable. */ | |
| 5474d94f AM |
7303 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7304 | { | |
| 7305 | s = htab->elf.sdynrelro; | |
| 7306 | srel = htab->elf.sreldynrelro; | |
| 7307 | } | |
| 7308 | else | |
| 7309 | { | |
| 7310 | s = htab->elf.sdynbss; | |
| 7311 | srel = htab->elf.srelbss; | |
| 7312 | } | |
| 1d7e9d18 | 7313 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7314 | { |
| 4a7e5234 AM |
7315 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic |
| 7316 | linker to copy the initial value out of the dynamic object | |
| 7317 | and into the runtime process image. */ | |
| 5474d94f | 7318 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7319 | h->needs_copy = 1; |
| 5bd4f169 AM |
7320 | } |
| 7321 | ||
| 529fe20e AM |
7322 | /* We no longer want dyn_relocs. */ |
| 7323 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 6cabe1ea | 7324 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7325 | } |
| 7326 | ||
| e86ce104 AM |
7327 | /* If given a function descriptor symbol, hide both the function code |
| 7328 | sym and the descriptor. */ | |
| 7329 | static void | |
| 4ce794b7 AM |
7330 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7331 | struct elf_link_hash_entry *h, | |
| 7332 | bfd_boolean force_local) | |
| e86ce104 | 7333 | { |
| 34814b9f | 7334 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7335 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7336 | ||
| 34814b9f AM |
7337 | eh = (struct ppc_link_hash_entry *) h; |
| 7338 | if (eh->is_func_descriptor) | |
| e86ce104 | 7339 | { |
| 34814b9f | 7340 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7341 | |
| 721956f4 | 7342 | if (fh == NULL) |
| d1329ca3 AM |
7343 | { |
| 7344 | const char *p, *q; | |
| b8ac2841 | 7345 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7346 | char save; |
| 7347 | ||
| 7348 | /* We aren't supposed to use alloca in BFD because on | |
| 7349 | systems which do not have alloca the version in libiberty | |
| 7350 | calls xmalloc, which might cause the program to crash | |
| 7351 | when it runs out of memory. This function doesn't have a | |
| 7352 | return status, so there's no way to gracefully return an | |
| 7353 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7354 | accessed; It's either a string in an ELF string table, |
| 7355 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7356 | |
| 34814b9f | 7357 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7358 | save = *p; |
| 7359 | *(char *) p = '.'; | |
| 34814b9f | 7360 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7361 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7362 | *(char *) p = save; |
| 7363 | ||
| 7364 | /* Unfortunately, if it so happens that the string we were | |
| 7365 | looking for was allocated immediately before this string, | |
| 7366 | then we overwrote the string terminator. That's the only | |
| 7367 | reason the lookup should fail. */ | |
| 7368 | if (fh == NULL) | |
| 7369 | { | |
| 34814b9f AM |
7370 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7371 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7372 | --q, --p; |
| 34814b9f AM |
7373 | if (q < eh->elf.root.root.string && *p == '.') |
| 7374 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7375 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7376 | } |
| 7377 | if (fh != NULL) | |
| 7378 | { | |
| 34814b9f AM |
7379 | eh->oh = fh; |
| 7380 | fh->oh = eh; | |
| d1329ca3 AM |
7381 | } |
| 7382 | } | |
| e86ce104 | 7383 | if (fh != NULL) |
| 34814b9f | 7384 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7385 | } |
| 7386 | } | |
| 7387 | ||
| 411e1bfb | 7388 | static bfd_boolean |
| 8843416a AM |
7389 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7390 | Elf_Internal_Sym **symp, | |
| 7391 | asection **symsecp, | |
| f961d9dd | 7392 | unsigned char **tls_maskp, |
| 8843416a AM |
7393 | Elf_Internal_Sym **locsymsp, |
| 7394 | unsigned long r_symndx, | |
| 7395 | bfd *ibfd) | |
| 411e1bfb | 7396 | { |
| 0ffa91dd | 7397 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7398 | |
| 7399 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7400 | { | |
| 7401 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7402 | struct elf_link_hash_entry *h; | |
| 7403 | ||
| 7404 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7405 | h = elf_follow_link (h); |
| 411e1bfb AM |
7406 | |
| 7407 | if (hp != NULL) | |
| 7408 | *hp = h; | |
| 7409 | ||
| 7410 | if (symp != NULL) | |
| 7411 | *symp = NULL; | |
| 7412 | ||
| 7413 | if (symsecp != NULL) | |
| 7414 | { | |
| 7415 | asection *symsec = NULL; | |
| 7416 | if (h->root.type == bfd_link_hash_defined | |
| 7417 | || h->root.type == bfd_link_hash_defweak) | |
| 7418 | symsec = h->root.u.def.section; | |
| 7419 | *symsecp = symsec; | |
| 7420 | } | |
| 7421 | ||
| e7b938ca | 7422 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7423 | { |
| 7424 | struct ppc_link_hash_entry *eh; | |
| 7425 | ||
| 7426 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7427 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7428 | } |
| 7429 | } | |
| 7430 | else | |
| 7431 | { | |
| 7432 | Elf_Internal_Sym *sym; | |
| 7433 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7434 | ||
| 7435 | if (locsyms == NULL) | |
| 7436 | { | |
| 7437 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7438 | if (locsyms == NULL) | |
| 7439 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7440 | symtab_hdr->sh_info, | |
| 7441 | 0, NULL, NULL, NULL); | |
| 7442 | if (locsyms == NULL) | |
| 7443 | return FALSE; | |
| 7444 | *locsymsp = locsyms; | |
| 7445 | } | |
| 7446 | sym = locsyms + r_symndx; | |
| 7447 | ||
| 7448 | if (hp != NULL) | |
| 7449 | *hp = NULL; | |
| 7450 | ||
| 7451 | if (symp != NULL) | |
| 7452 | *symp = sym; | |
| 7453 | ||
| 7454 | if (symsecp != NULL) | |
| cb33740c | 7455 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7456 | |
| e7b938ca | 7457 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7458 | { |
| 7459 | struct got_entry **lgot_ents; | |
| f961d9dd | 7460 | unsigned char *tls_mask; |
| 411e1bfb | 7461 | |
| e7b938ca | 7462 | tls_mask = NULL; |
| 411e1bfb AM |
7463 | lgot_ents = elf_local_got_ents (ibfd); |
| 7464 | if (lgot_ents != NULL) | |
| 7465 | { | |
| e054468f AM |
7466 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7467 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7468 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7469 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7470 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7471 | } |
| e7b938ca | 7472 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7473 | } |
| 7474 | } | |
| 7475 | return TRUE; | |
| 7476 | } | |
| 7477 | ||
| e7b938ca | 7478 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7479 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7480 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7481 | |
| 7482 | static int | |
| f961d9dd | 7483 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7484 | unsigned long *toc_symndx, |
| 7485 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7486 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7487 | const Elf_Internal_Rela *rel, |
| 7488 | bfd *ibfd) | |
| 411e1bfb AM |
7489 | { |
| 7490 | unsigned long r_symndx; | |
| 0d4792f7 | 7491 | int next_r; |
| 411e1bfb AM |
7492 | struct elf_link_hash_entry *h; |
| 7493 | Elf_Internal_Sym *sym; | |
| 7494 | asection *sec; | |
| 7495 | bfd_vma off; | |
| 7496 | ||
| 7497 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7498 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7499 | return 0; |
| 411e1bfb | 7500 | |
| e7b938ca | 7501 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7502 | || sec == NULL |
| 6bee8834 | 7503 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7504 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7505 | return 1; |
| 411e1bfb AM |
7506 | |
| 7507 | /* Look inside a TOC section too. */ | |
| 7508 | if (h != NULL) | |
| 7509 | { | |
| 7510 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7511 | off = h->root.u.def.value; | |
| 7512 | } | |
| 7513 | else | |
| 7514 | off = sym->st_value; | |
| 7515 | off += rel->r_addend; | |
| 7516 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7517 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7518 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7519 | if (toc_symndx != NULL) |
| 7520 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7521 | if (toc_addend != NULL) |
| 7522 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7523 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7524 | return 0; | |
| 854b41e7 | 7525 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7526 | && (next_r == -1 || next_r == -2)) |
| 7527 | return 1 - next_r; | |
| 951fd09b | 7528 | return 1; |
| 411e1bfb AM |
7529 | } |
| 7530 | ||
| 3b421ab3 AM |
7531 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7532 | ||
| 7533 | static struct tocsave_entry * | |
| 7534 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7535 | enum insert_option insert, | |
| 7536 | Elf_Internal_Sym **local_syms, | |
| 7537 | const Elf_Internal_Rela *irela, | |
| 7538 | bfd *ibfd) | |
| 7539 | { | |
| 7540 | unsigned long r_indx; | |
| 7541 | struct elf_link_hash_entry *h; | |
| 7542 | Elf_Internal_Sym *sym; | |
| 7543 | struct tocsave_entry ent, *p; | |
| 7544 | hashval_t hash; | |
| 7545 | struct tocsave_entry **slot; | |
| 7546 | ||
| 7547 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7548 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7549 | return NULL; | |
| 7550 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7551 | { | |
| 4eca0228 | 7552 | _bfd_error_handler |
| 871b3ab2 | 7553 | (_("%pB: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7554 | return NULL; |
| 7555 | } | |
| 7556 | ||
| 7557 | if (h != NULL) | |
| 7558 | ent.offset = h->root.u.def.value; | |
| 7559 | else | |
| 7560 | ent.offset = sym->st_value; | |
| 7561 | ent.offset += irela->r_addend; | |
| 7562 | ||
| 7563 | hash = tocsave_htab_hash (&ent); | |
| 7564 | slot = ((struct tocsave_entry **) | |
| 7565 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7566 | if (slot == NULL) | |
| 7567 | return NULL; | |
| 7568 | ||
| 7569 | if (*slot == NULL) | |
| 7570 | { | |
| 7571 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7572 | if (p == NULL) | |
| 7573 | return NULL; | |
| 7574 | *p = ent; | |
| 7575 | *slot = p; | |
| 7576 | } | |
| 7577 | return *slot; | |
| 7578 | } | |
| 7579 | ||
| 754021d0 | 7580 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7581 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7582 | |
| 7583 | static bfd_boolean | |
| 7584 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7585 | { | |
| 7586 | struct ppc_link_hash_entry *eh; | |
| 7587 | asection *sym_sec; | |
| 74f0fb50 | 7588 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7589 | |
| 7590 | if (h->root.type == bfd_link_hash_indirect) | |
| 7591 | return TRUE; | |
| 7592 | ||
| 754021d0 AM |
7593 | if (h->root.type != bfd_link_hash_defined |
| 7594 | && h->root.type != bfd_link_hash_defweak) | |
| 7595 | return TRUE; | |
| 7596 | ||
| 7597 | eh = (struct ppc_link_hash_entry *) h; | |
| 7598 | if (eh->adjust_done) | |
| 7599 | return TRUE; | |
| 7600 | ||
| 7601 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7602 | opd = get_opd_info (sym_sec); |
| 7603 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7604 | { |
| 51aecdc5 | 7605 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7606 | if (adjust == -1) |
| 7607 | { | |
| 7608 | /* This entry has been deleted. */ | |
| b3fac117 | 7609 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7610 | if (dsec == NULL) |
| 7611 | { | |
| 7612 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7613 | if (discarded_section (dsec)) |
| 81688140 | 7614 | { |
| b3fac117 | 7615 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7616 | break; |
| 7617 | } | |
| 7618 | } | |
| 4025353c | 7619 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7620 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7621 | } |
| 7622 | else | |
| 7623 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7624 | eh->adjust_done = 1; |
| 7625 | } | |
| 7626 | return TRUE; | |
| 7627 | } | |
| 7628 | ||
| 8c1d1bb8 | 7629 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7630 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7631 | have already been determined. */ |
| 7632 | ||
| 7633 | static bfd_boolean | |
| 7634 | dec_dynrel_count (bfd_vma r_info, | |
| 7635 | asection *sec, | |
| 7636 | struct bfd_link_info *info, | |
| 7637 | Elf_Internal_Sym **local_syms, | |
| 7638 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7639 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7640 | { |
| 7641 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7642 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7643 | |
| 7644 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7645 | should be kept in sync with the code in check_relocs. */ | |
| 7646 | r_type = ELF64_R_TYPE (r_info); | |
| 7647 | switch (r_type) | |
| 7648 | { | |
| 7649 | default: | |
| 7650 | return TRUE; | |
| 7651 | ||
| 7652 | case R_PPC64_TPREL16: | |
| 7653 | case R_PPC64_TPREL16_LO: | |
| 7654 | case R_PPC64_TPREL16_HI: | |
| 7655 | case R_PPC64_TPREL16_HA: | |
| 7656 | case R_PPC64_TPREL16_DS: | |
| 7657 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7658 | case R_PPC64_TPREL16_HIGH: |
| 7659 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7660 | case R_PPC64_TPREL16_HIGHER: |
| 7661 | case R_PPC64_TPREL16_HIGHERA: | |
| 7662 | case R_PPC64_TPREL16_HIGHEST: | |
| 7663 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7664 | case R_PPC64_TPREL64: |
| 7665 | case R_PPC64_DTPMOD64: | |
| 7666 | case R_PPC64_DTPREL64: | |
| 7667 | case R_PPC64_ADDR64: | |
| 7668 | case R_PPC64_REL30: | |
| 7669 | case R_PPC64_REL32: | |
| 7670 | case R_PPC64_REL64: | |
| 7671 | case R_PPC64_ADDR14: | |
| 7672 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7673 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7674 | case R_PPC64_ADDR16: | |
| 7675 | case R_PPC64_ADDR16_DS: | |
| 7676 | case R_PPC64_ADDR16_HA: | |
| 7677 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7678 | case R_PPC64_ADDR16_HIGH: |
| 7679 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7680 | case R_PPC64_ADDR16_HIGHER: |
| 7681 | case R_PPC64_ADDR16_HIGHERA: | |
| 7682 | case R_PPC64_ADDR16_HIGHEST: | |
| 7683 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7684 | case R_PPC64_ADDR16_LO: | |
| 7685 | case R_PPC64_ADDR16_LO_DS: | |
| 7686 | case R_PPC64_ADDR24: | |
| 7687 | case R_PPC64_ADDR32: | |
| 7688 | case R_PPC64_UADDR16: | |
| 7689 | case R_PPC64_UADDR32: | |
| 7690 | case R_PPC64_UADDR64: | |
| 7691 | case R_PPC64_TOC: | |
| 7692 | break; | |
| 7693 | } | |
| 7694 | ||
| 7695 | if (local_syms != NULL) | |
| 7696 | { | |
| 7697 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7698 | bfd *ibfd = sec->owner; |
| 7699 | ||
| 7700 | r_symndx = ELF64_R_SYM (r_info); | |
| 7701 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7702 | return FALSE; | |
| 7703 | } | |
| 7704 | ||
| 0e1862bb | 7705 | if ((bfd_link_pic (info) |
| 1d483afe | 7706 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7707 | || (h != NULL |
| 198f1157 | 7708 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7709 | || h->root.type == bfd_link_hash_defweak |
| 7710 | || !h->def_regular)))) | |
| 7711 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7712 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7713 | && h != NULL |
| 7714 | && (h->root.type == bfd_link_hash_defweak | |
| 7715 | || !h->def_regular))) | |
| 7716 | ; | |
| 7717 | else | |
| 7718 | return TRUE; | |
| 7719 | ||
| 7720 | if (h != NULL) | |
| 6edfbbad | 7721 | { |
| 19e08130 AM |
7722 | struct elf_dyn_relocs *p; |
| 7723 | struct elf_dyn_relocs **pp; | |
| 7724 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7725 | ||
| 7726 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7727 | with local syms for a given section. Also, symbol flags are | |
| 7728 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7729 | report a dynreloc miscount. */ | |
| 7730 | if (*pp == NULL && info->gc_sections) | |
| 7731 | return TRUE; | |
| 7732 | ||
| 7733 | while ((p = *pp) != NULL) | |
| 60124e18 | 7734 | { |
| 19e08130 AM |
7735 | if (p->sec == sec) |
| 7736 | { | |
| 7737 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7738 | p->pc_count -= 1; | |
| 7739 | p->count -= 1; | |
| 7740 | if (p->count == 0) | |
| 7741 | *pp = p->next; | |
| 7742 | return TRUE; | |
| 7743 | } | |
| 7744 | pp = &p->next; | |
| 60124e18 | 7745 | } |
| 6edfbbad | 7746 | } |
| 19e08130 AM |
7747 | else |
| 7748 | { | |
| 7749 | struct ppc_dyn_relocs *p; | |
| 7750 | struct ppc_dyn_relocs **pp; | |
| 7751 | void *vpp; | |
| 7752 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7753 | |
| 19e08130 AM |
7754 | if (local_syms == NULL) |
| 7755 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7756 | if (sym_sec == NULL) | |
| 7757 | sym_sec = sec; | |
| c57da1a7 | 7758 | |
| 19e08130 AM |
7759 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7760 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7761 | ||
| 7762 | if (*pp == NULL && info->gc_sections) | |
| 7763 | return TRUE; | |
| 7764 | ||
| 7765 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7766 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7767 | { |
| 19e08130 AM |
7768 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7769 | { | |
| 7770 | p->count -= 1; | |
| 7771 | if (p->count == 0) | |
| 7772 | *pp = p->next; | |
| 7773 | return TRUE; | |
| 7774 | } | |
| 7775 | pp = &p->next; | |
| 8c1d1bb8 | 7776 | } |
| 8c1d1bb8 AM |
7777 | } |
| 7778 | ||
| 695344c0 | 7779 | /* xgettext:c-format */ |
| cf97bcb0 AM |
7780 | _bfd_error_handler (_("dynreloc miscount for %pB, section %pA"), |
| 7781 | sec->owner, sec); | |
| 8c1d1bb8 AM |
7782 | bfd_set_error (bfd_error_bad_value); |
| 7783 | return FALSE; | |
| 7784 | } | |
| 7785 | ||
| 754021d0 AM |
7786 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7787 | only remove those associated with functions in discarded link-once | |
| 7788 | sections, or weakly defined functions that have been overridden. It | |
| 7789 | would be possible to remove many more entries for statically linked | |
| 7790 | applications. */ | |
| 7791 | ||
| b34976b6 | 7792 | bfd_boolean |
| e7d1c40c | 7793 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7794 | { |
| 7795 | bfd *ibfd; | |
| 754021d0 | 7796 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7797 | asection *need_pad = NULL; |
| e7d1c40c AM |
7798 | struct ppc_link_hash_table *htab; |
| 7799 | ||
| 7800 | htab = ppc_hash_table (info); | |
| 7801 | if (htab == NULL) | |
| 7802 | return FALSE; | |
| 1e2f5b6e | 7803 | |
| c72f2fb2 | 7804 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7805 | { |
| 7806 | asection *sec; | |
| 7807 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7808 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7809 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7810 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7811 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7812 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7813 | |
| 854b41e7 AM |
7814 | if (!is_ppc64_elf (ibfd)) |
| 7815 | continue; | |
| 7816 | ||
| 1e2f5b6e | 7817 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7818 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7819 | continue; |
| 7820 | ||
| dbaa2011 | 7821 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7822 | continue; |
| 7823 | ||
| 1e2f5b6e AM |
7824 | if (sec->output_section == bfd_abs_section_ptr) |
| 7825 | continue; | |
| 7826 | ||
| 7827 | /* Look through the section relocs. */ | |
| 7828 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7829 | continue; | |
| 7830 | ||
| 6cdc0ccc | 7831 | local_syms = NULL; |
| 0ffa91dd | 7832 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7833 | |
| 7834 | /* Read the relocations. */ | |
| 4ce794b7 | 7835 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7836 | info->keep_memory); |
| 1e2f5b6e | 7837 | if (relstart == NULL) |
| b34976b6 | 7838 | return FALSE; |
| 1e2f5b6e AM |
7839 | |
| 7840 | /* First run through the relocs to check they are sane, and to | |
| 7841 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7842 | need_edit = FALSE; |
| 51aecdc5 | 7843 | broken = FALSE; |
| 3f764659 | 7844 | need_pad = sec; |
| 1e2f5b6e | 7845 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7846 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7847 | { |
| 04c9666a | 7848 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7849 | unsigned long r_symndx; |
| 7850 | asection *sym_sec; | |
| 7851 | struct elf_link_hash_entry *h; | |
| 7852 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7853 | bfd_vma offset; |
| 1e2f5b6e | 7854 | |
| 51aecdc5 | 7855 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7856 | only interested in the reloc pointing to a function entry |
| 7857 | point. */ | |
| 51aecdc5 AM |
7858 | offset = rel->r_offset; |
| 7859 | if (rel + 1 == relend | |
| 7860 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7861 | { |
| 7862 | /* If someone messes with .opd alignment then after a | |
| 7863 | "ld -r" we might have padding in the middle of .opd. | |
| 7864 | Also, there's nothing to prevent someone putting | |
| 7865 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7866 | optimization for them! */ |
| 3f764659 | 7867 | broken_opd: |
| 4eca0228 | 7868 | _bfd_error_handler |
| 871b3ab2 | 7869 | (_("%pB: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7870 | broken = TRUE; |
| 1e2f5b6e AM |
7871 | break; |
| 7872 | } | |
| 7873 | ||
| 50bc7936 AM |
7874 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7875 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7876 | { | |
| 4eca0228 | 7877 | _bfd_error_handler |
| 695344c0 | 7878 | /* xgettext:c-format */ |
| 871b3ab2 | 7879 | (_("%pB: unexpected reloc type %u in .opd section"), |
| d003868e | 7880 | ibfd, r_type); |
| 51aecdc5 | 7881 | broken = TRUE; |
| 50bc7936 AM |
7882 | break; |
| 7883 | } | |
| 7884 | ||
| 1e2f5b6e | 7885 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7886 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7887 | r_symndx, ibfd)) | |
| 50bc7936 | 7888 | goto error_ret; |
| 1e2f5b6e AM |
7889 | |
| 7890 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7891 | { | |
| 411e1bfb AM |
7892 | const char *sym_name; |
| 7893 | if (h != NULL) | |
| 7894 | sym_name = h->root.root.string; | |
| 7895 | else | |
| 26c61ae5 L |
7896 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7897 | sym_sec); | |
| 411e1bfb | 7898 | |
| 4eca0228 | 7899 | _bfd_error_handler |
| 695344c0 | 7900 | /* xgettext:c-format */ |
| 871b3ab2 | 7901 | (_("%pB: undefined sym `%s' in .opd section"), |
| d003868e | 7902 | ibfd, sym_name); |
| 51aecdc5 | 7903 | broken = TRUE; |
| 1e2f5b6e AM |
7904 | break; |
| 7905 | } | |
| 7906 | ||
| 51020317 AM |
7907 | /* opd entries are always for functions defined in the |
| 7908 | current input bfd. If the symbol isn't defined in the | |
| 7909 | input bfd, then we won't be using the function in this | |
| 7910 | bfd; It must be defined in a linkonce section in another | |
| 7911 | bfd, or is weak. It's also possible that we are | |
| 7912 | discarding the function due to a linker script /DISCARD/, | |
| 7913 | which we test for via the output_section. */ | |
| 7914 | if (sym_sec->owner != ibfd | |
| 7915 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7916 | need_edit = TRUE; |
| 1e2f5b6e | 7917 | |
| 50bc7936 | 7918 | rel += 2; |
| 51aecdc5 AM |
7919 | if (rel + 1 == relend |
| 7920 | || (rel + 2 < relend | |
| 7921 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7922 | ++rel; | |
| 7923 | ||
| 7924 | if (rel == relend) | |
| 3f764659 JJ |
7925 | { |
| 7926 | if (sec->size == offset + 24) | |
| 7927 | { | |
| 7928 | need_pad = NULL; | |
| 7929 | break; | |
| 7930 | } | |
| 51aecdc5 | 7931 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7932 | { |
| 7933 | cnt_16b++; | |
| 7934 | break; | |
| 7935 | } | |
| 7936 | goto broken_opd; | |
| 7937 | } | |
| 3f764659 JJ |
7938 | else if (rel + 1 < relend |
| 7939 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7940 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7941 | { | |
| 51aecdc5 AM |
7942 | if (rel[0].r_offset == offset + 16) |
| 7943 | cnt_16b++; | |
| 7944 | else if (rel[0].r_offset != offset + 24) | |
| 7945 | goto broken_opd; | |
| 3f764659 JJ |
7946 | } |
| 7947 | else | |
| 7948 | goto broken_opd; | |
| 1e2f5b6e AM |
7949 | } |
| 7950 | ||
| e7d1c40c | 7951 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7952 | |
| 51aecdc5 | 7953 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7954 | { |
| 7955 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7956 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7957 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7958 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7959 | bfd_size_type amt; |
| 7960 | ||
| 983bddc8 | 7961 | new_contents = NULL; |
| 51aecdc5 | 7962 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7963 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7964 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7965 | if (opd->adjust == NULL) |
| 7966 | return FALSE; | |
| 1e2f5b6e AM |
7967 | |
| 7968 | /* This seems a waste of time as input .opd sections are all | |
| 7969 | zeros as generated by gcc, but I suppose there's no reason | |
| 7970 | this will always be so. We might start putting something in | |
| 7971 | the third word of .opd entries. */ | |
| 7972 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7973 | { | |
| eea6121a AM |
7974 | bfd_byte *loc; |
| 7975 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7976 | { |
| eea6121a AM |
7977 | if (loc != NULL) |
| 7978 | free (loc); | |
| 50bc7936 | 7979 | error_ret: |
| 6cdc0ccc AM |
7980 | if (local_syms != NULL |
| 7981 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7982 | free (local_syms); | |
| 6cdc0ccc AM |
7983 | if (elf_section_data (sec)->relocs != relstart) |
| 7984 | free (relstart); | |
| b34976b6 | 7985 | return FALSE; |
| 6cdc0ccc | 7986 | } |
| 1e2f5b6e AM |
7987 | sec->contents = loc; |
| 7988 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7989 | } | |
| 7990 | ||
| 7991 | elf_section_data (sec)->relocs = relstart; | |
| 7992 | ||
| 3f764659 | 7993 | new_contents = sec->contents; |
| 3f764659 JJ |
7994 | if (add_aux_fields) |
| 7995 | { | |
| 7996 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7997 | if (new_contents == NULL) | |
| 7998 | return FALSE; | |
| 51aecdc5 | 7999 | need_pad = NULL; |
| 3f764659 | 8000 | } |
| b4f4e59f AM |
8001 | wptr = new_contents; |
| 8002 | rptr = sec->contents; | |
| 1e2f5b6e | 8003 | write_rel = relstart; |
| 51aecdc5 | 8004 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8005 | { |
| 50bc7936 AM |
8006 | unsigned long r_symndx; |
| 8007 | asection *sym_sec; | |
| 8008 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8009 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8010 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8011 | long opd_ent_size; |
| 8012 | Elf_Internal_Rela *next_rel; | |
| 8013 | bfd_boolean skip; | |
| 50bc7936 AM |
8014 | |
| 8015 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8016 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8017 | r_symndx, ibfd)) |
| 50bc7936 AM |
8018 | goto error_ret; |
| 8019 | ||
| 51aecdc5 AM |
8020 | next_rel = rel + 2; |
| 8021 | if (next_rel + 1 == relend | |
| 8022 | || (next_rel + 2 < relend | |
| 8023 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8024 | ++next_rel; | |
| 8025 | ||
| 8026 | /* See if the .opd entry is full 24 byte or | |
| 8027 | 16 byte (with fd_aux entry overlapped with next | |
| 8028 | fd_func). */ | |
| 8029 | opd_ent_size = 24; | |
| 8030 | if (next_rel == relend) | |
| 1e2f5b6e | 8031 | { |
| 51aecdc5 | 8032 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8033 | opd_ent_size = 16; |
| 51aecdc5 AM |
8034 | } |
| 8035 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8036 | opd_ent_size = 16; | |
| 3f764659 | 8037 | |
| 51aecdc5 AM |
8038 | if (h != NULL |
| 8039 | && h->root.root.string[0] == '.') | |
| 8040 | { | |
| 8c5b4e52 AM |
8041 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8042 | if (fdh != NULL) | |
| 8043 | { | |
| 8044 | fdh = ppc_follow_link (fdh); | |
| 8045 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8046 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8047 | fdh = NULL; | |
| 8048 | } | |
| 51aecdc5 | 8049 | } |
| 1e2f5b6e | 8050 | |
| 51aecdc5 AM |
8051 | skip = (sym_sec->owner != ibfd |
| 8052 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8053 | if (skip) | |
| 8054 | { | |
| 8055 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8056 | { |
| 51aecdc5 AM |
8057 | /* Arrange for the function descriptor sym |
| 8058 | to be dropped. */ | |
| 8059 | fdh->elf.root.u.def.value = 0; | |
| 8060 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8061 | } |
| 51aecdc5 | 8062 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8063 | |
| 0e1862bb | 8064 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8065 | rel = next_rel; |
| 8066 | else | |
| 8067 | while (1) | |
| 8068 | { | |
| 8069 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8070 | NULL, h, sym)) | |
| 8071 | goto error_ret; | |
| 754021d0 | 8072 | |
| 51aecdc5 AM |
8073 | if (++rel == next_rel) |
| 8074 | break; | |
| 1e2f5b6e | 8075 | |
| 51aecdc5 AM |
8076 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8077 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8078 | r_symndx, ibfd)) | |
| 8079 | goto error_ret; | |
| 8080 | } | |
| 50bc7936 AM |
8081 | } |
| 8082 | else | |
| 1e2f5b6e | 8083 | { |
| 51aecdc5 AM |
8084 | /* We'll be keeping this opd entry. */ |
| 8085 | long adjust; | |
| 8086 | ||
| 8087 | if (fdh != NULL) | |
| 8088 | { | |
| 8089 | /* Redefine the function descriptor symbol to | |
| 8090 | this location in the opd section. It is | |
| 8091 | necessary to update the value here rather | |
| 8092 | than using an array of adjustments as we do | |
| 8093 | for local symbols, because various places | |
| 8094 | in the generic ELF code use the value | |
| 8095 | stored in u.def.value. */ | |
| 8096 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8097 | fdh->adjust_done = 1; | |
| 8098 | } | |
| 8099 | ||
| 8100 | /* Local syms are a bit tricky. We could | |
| 8101 | tweak them as they can be cached, but | |
| 8102 | we'd need to look through the local syms | |
| 8103 | for the function descriptor sym which we | |
| 8104 | don't have at the moment. So keep an | |
| 8105 | array of adjustments. */ | |
| 8106 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8107 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8108 | ||
| 8109 | if (wptr != rptr) | |
| 8110 | memcpy (wptr, rptr, opd_ent_size); | |
| 8111 | wptr += opd_ent_size; | |
| 8112 | if (add_aux_fields && opd_ent_size == 16) | |
| 8113 | { | |
| 8114 | memset (wptr, '\0', 8); | |
| 8115 | wptr += 8; | |
| 8116 | } | |
| 8117 | ||
| 50bc7936 | 8118 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8119 | new opd entries. */ |
| 8120 | for ( ; rel != next_rel; ++rel) | |
| 8121 | { | |
| 8122 | rel->r_offset += adjust; | |
| 8123 | if (write_rel != rel) | |
| 8124 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8125 | ++write_rel; | |
| 8126 | } | |
| 1e2f5b6e | 8127 | } |
| 51aecdc5 AM |
8128 | |
| 8129 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8130 | } |
| 8131 | ||
| 3f764659 | 8132 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8133 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8134 | if (add_aux_fields) |
| 8135 | { | |
| 8136 | free (sec->contents); | |
| 8137 | sec->contents = new_contents; | |
| 8138 | } | |
| 8139 | ||
| 05bf9422 | 8140 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8141 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8142 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8143 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8144 | some_edited = TRUE; |
| 1e2f5b6e | 8145 | } |
| 6cdc0ccc | 8146 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8147 | free (relstart); |
| 6cdc0ccc | 8148 | |
| 411e1bfb AM |
8149 | if (local_syms != NULL |
| 8150 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8151 | { | |
| 8152 | if (!info->keep_memory) | |
| 8153 | free (local_syms); | |
| 8154 | else | |
| 8155 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8156 | } | |
| 8157 | } | |
| 8158 | ||
| 754021d0 AM |
8159 | if (some_edited) |
| 8160 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8161 | ||
| 3f764659 JJ |
8162 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8163 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8164 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8165 | { |
| 8166 | bfd_byte *p; | |
| 8167 | ||
| 8168 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8169 | { | |
| 8170 | BFD_ASSERT (need_pad->size > 0); | |
| 8171 | ||
| 8172 | p = bfd_malloc (need_pad->size + 8); | |
| 8173 | if (p == NULL) | |
| 8174 | return FALSE; | |
| 699733f6 | 8175 | |
| 3f764659 JJ |
8176 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8177 | p, 0, need_pad->size)) | |
| 8178 | return FALSE; | |
| 8179 | ||
| 8180 | need_pad->contents = p; | |
| 8181 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8182 | } | |
| 8183 | else | |
| 8184 | { | |
| 8185 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8186 | if (p == NULL) | |
| 8187 | return FALSE; | |
| 8188 | ||
| 8189 | need_pad->contents = p; | |
| 8190 | } | |
| 8191 | ||
| 8192 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8193 | need_pad->size += 8; | |
| 8194 | } | |
| 8195 | ||
| 411e1bfb AM |
8196 | return TRUE; |
| 8197 | } | |
| 8198 | ||
| e1918d23 | 8199 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8200 | |
| e1918d23 | 8201 | asection * |
| e7d1c40c | 8202 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8203 | { |
| 411e1bfb AM |
8204 | struct ppc_link_hash_table *htab; |
| 8205 | ||
| 411e1bfb | 8206 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8207 | if (htab == NULL) |
| 8208 | return NULL; | |
| 8209 | ||
| ee67d69a AM |
8210 | if (abiversion (info->output_bfd) == 1) |
| 8211 | htab->opd_abi = 1; | |
| 8212 | ||
| e7d1c40c | 8213 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8214 | htab->do_multi_toc = 0; |
| 8215 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8216 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8217 | |
| 8b5f1ed8 AM |
8218 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8219 | with symbol interposition. For example, glibc libpthread.so and | |
| 8220 | libc.so duplicate many pthread symbols, with a fallback | |
| 8221 | implementation in libc.so. In some cases the fallback does more | |
| 8222 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8223 | is one such symbol: the libpthread.so implementation is | |
| 8224 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8225 | An app that "cleverly" uses dlopen to only load necessary | |
| 8226 | libraries at runtime may omit loading libpthread.so when not | |
| 8227 | running multi-threaded, which then results in the libc.so | |
| 8228 | fallback symbols being used and ld.so complaining. Now there | |
| 8229 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8230 | pthread situation, but that may not be the only case where | |
| 8231 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8232 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8233 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8234 | if (htab->params->plt_localentry0 |
| 8235 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8236 | FALSE, FALSE, FALSE) == NULL) | |
| cf97bcb0 AM |
8237 | _bfd_error_handler |
| 8238 | (_("warning: --plt-localentry is especially dangerous without " | |
| 8239 | "ld.so support to detect ABI violations")); | |
| f378ab09 | 8240 | |
| 3a71aa26 AM |
8241 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8242 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8243 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8244 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8245 | if (htab->tls_get_addr != NULL) | |
| 8246 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8247 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8248 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8249 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8250 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8251 | { |
| 8252 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8253 | ||
| 8254 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8255 | FALSE, FALSE, TRUE); | |
| 8256 | if (opt != NULL) | |
| 8257 | func_desc_adjust (opt, info); | |
| 8258 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8259 | FALSE, FALSE, TRUE); | |
| 8260 | if (opt_fd != NULL | |
| 8261 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8262 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8263 | { | |
| 8264 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8265 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8266 | be calling __tls_get_addr via a plt call stub, then | |
| 8267 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8268 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8269 | if (htab->elf.dynamic_sections_created | |
| 8270 | && tga_fd != NULL | |
| 8271 | && (tga_fd->type == STT_FUNC | |
| 8272 | || tga_fd->needs_plt) | |
| 8273 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8274 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8275 | { |
| 8276 | struct plt_entry *ent; | |
| 8277 | ||
| 8278 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8279 | if (ent->plt.refcount > 0) | |
| 8280 | break; | |
| 8281 | if (ent != NULL) | |
| 8282 | { | |
| 8283 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8284 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8285 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8286 | opt_fd->mark = 1; |
| a7f2871e AM |
8287 | if (opt_fd->dynindx != -1) |
| 8288 | { | |
| 8289 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8290 | opt_fd->dynindx = -1; | |
| 8291 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8292 | opt_fd->dynstr_index); | |
| 8293 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8294 | return NULL; |
| a7f2871e AM |
8295 | } |
| 8296 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8297 | tga = &htab->tls_get_addr->elf; | |
| 8298 | if (opt != NULL && tga != NULL) | |
| 8299 | { | |
| 8300 | tga->root.type = bfd_link_hash_indirect; | |
| 8301 | tga->root.u.i.link = &opt->root; | |
| 8302 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8303 | opt->mark = 1; |
| a7f2871e AM |
8304 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8305 | tga->forced_local); | |
| 8306 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8307 | } | |
| 8308 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8309 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8310 | if (htab->tls_get_addr != NULL) | |
| 8311 | { | |
| 8312 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8313 | htab->tls_get_addr->is_func = 1; | |
| 8314 | } | |
| 8315 | } | |
| 8316 | } | |
| 8317 | } | |
| 7c9cf415 AM |
8318 | else if (htab->params->tls_get_addr_opt < 0) |
| 8319 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8320 | } |
| 33c0ec9d | 8321 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8322 | } |
| 8387904d | 8323 | |
| 3a71aa26 AM |
8324 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8325 | HASH1 or HASH2. */ | |
| 8387904d | 8326 | |
| 3a71aa26 AM |
8327 | static bfd_boolean |
| 8328 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8329 | const Elf_Internal_Rela *rel, | |
| 8330 | const struct ppc_link_hash_entry *hash1, | |
| 8331 | const struct ppc_link_hash_entry *hash2) | |
| 8332 | { | |
| 8333 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8334 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8335 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8336 | ||
| e054468f | 8337 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8338 | { |
| 3a71aa26 AM |
8339 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8340 | struct elf_link_hash_entry *h; | |
| 8387904d | 8341 | |
| 3a71aa26 | 8342 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8343 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8344 | if (h == &hash1->elf || h == &hash2->elf) |
| 8345 | return TRUE; | |
| a48ebf4d | 8346 | } |
| 3a71aa26 | 8347 | return FALSE; |
| 951fd09b | 8348 | } |
| 411e1bfb | 8349 | |
| 951fd09b AM |
8350 | /* Run through all the TLS relocs looking for optimization |
| 8351 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8352 | a preliminary section layout so that we know the TLS segment | |
| 8353 | offsets. We can't optimize earlier because some optimizations need | |
| 8354 | to know the tp offset, and we need to optimize before allocating | |
| 8355 | dynamic relocations. */ | |
| 8356 | ||
| 8357 | bfd_boolean | |
| 33c0ec9d | 8358 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8359 | { |
| 8360 | bfd *ibfd; | |
| 8361 | asection *sec; | |
| 8362 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8363 | unsigned char *toc_ref; |
| 102890f0 | 8364 | int pass; |
| 951fd09b | 8365 | |
| 3cbc1e5e | 8366 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8367 | return TRUE; |
| 8368 | ||
| 951fd09b | 8369 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8370 | if (htab == NULL) |
| 8371 | return FALSE; | |
| 8372 | ||
| 663a1470 AM |
8373 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8374 | entries involved with tls relocs, and check that tls relocs | |
| 8375 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8376 | such a call. If they are not, we can't do any tls optimization. | |
| 8377 | On the second pass twiddle tls_mask flags to notify | |
| 8378 | relocate_section that optimization can be done, and adjust got | |
| 8379 | and plt refcounts. */ | |
| 8380 | toc_ref = NULL; | |
| 8381 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8382 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8383 | { |
| 8384 | Elf_Internal_Sym *locsyms = NULL; | |
| 8385 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8386 | ||
| 102890f0 AM |
8387 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8388 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8389 | { | |
| 8390 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8391 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8392 | |
| 102890f0 AM |
8393 | /* Read the relocations. */ |
| 8394 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8395 | info->keep_memory); | |
| 8396 | if (relstart == NULL) | |
| 2915c55b JK |
8397 | { |
| 8398 | free (toc_ref); | |
| 8399 | return FALSE; | |
| 8400 | } | |
| 411e1bfb | 8401 | |
| 102890f0 AM |
8402 | relend = relstart + sec->reloc_count; |
| 8403 | for (rel = relstart; rel < relend; rel++) | |
| 8404 | { | |
| 8405 | enum elf_ppc64_reloc_type r_type; | |
| 8406 | unsigned long r_symndx; | |
| 8407 | struct elf_link_hash_entry *h; | |
| 8408 | Elf_Internal_Sym *sym; | |
| 8409 | asection *sym_sec; | |
| f961d9dd AM |
8410 | unsigned char *tls_mask; |
| 8411 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8412 | bfd_vma value; |
| 8413 | bfd_boolean ok_tprel, is_local; | |
| 8414 | long toc_ref_index = 0; | |
| 8415 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8416 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8417 | |
| 102890f0 AM |
8418 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8419 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8420 | r_symndx, ibfd)) | |
| 8421 | { | |
| 8422 | err_free_rel: | |
| 8423 | if (elf_section_data (sec)->relocs != relstart) | |
| 8424 | free (relstart); | |
| 8425 | if (toc_ref != NULL) | |
| 8426 | free (toc_ref); | |
| 8427 | if (locsyms != NULL | |
| 0ffa91dd | 8428 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8429 | != (unsigned char *) locsyms)) |
| 8430 | free (locsyms); | |
| 663a1470 | 8431 | return ret; |
| 102890f0 | 8432 | } |
| 411e1bfb | 8433 | |
| 102890f0 AM |
8434 | if (h != NULL) |
| 8435 | { | |
| 766bc656 AM |
8436 | if (h->root.type == bfd_link_hash_defined |
| 8437 | || h->root.type == bfd_link_hash_defweak) | |
| 8438 | value = h->root.u.def.value; | |
| 8439 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8440 | value = 0; | |
| 8441 | else | |
| 663a1470 AM |
8442 | { |
| 8443 | found_tls_get_addr_arg = 0; | |
| 8444 | continue; | |
| 8445 | } | |
| 102890f0 AM |
8446 | } |
| 8447 | else | |
| 8448 | /* Symbols referenced by TLS relocs must be of type | |
| 8449 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8450 | value = sym->st_value; | |
| 8451 | ||
| 8452 | ok_tprel = FALSE; | |
| 8453 | is_local = FALSE; | |
| 8454 | if (h == NULL | |
| 8455 | || !h->def_dynamic) | |
| 8456 | { | |
| 8457 | is_local = TRUE; | |
| 766bc656 AM |
8458 | if (h != NULL |
| 8459 | && h->root.type == bfd_link_hash_undefweak) | |
| 8460 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8461 | else if (sym_sec != NULL |
| 8462 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8463 | { |
| 8464 | value += sym_sec->output_offset; | |
| 8465 | value += sym_sec->output_section->vma; | |
| 8466 | value -= htab->elf.tls_sec->vma; | |
| 8467 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8468 | < (bfd_vma) 1 << 32); | |
| 8469 | } | |
| 102890f0 | 8470 | } |
| 951fd09b | 8471 | |
| 102890f0 | 8472 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8473 | /* If this section has old-style __tls_get_addr calls |
| 8474 | without marker relocs, then check that each | |
| 8475 | __tls_get_addr call reloc is preceded by a reloc | |
| 8476 | that conceivably belongs to the __tls_get_addr arg | |
| 8477 | setup insn. If we don't find matching arg setup | |
| 8478 | relocs, don't do any tls optimization. */ | |
| 8479 | if (pass == 0 | |
| 8480 | && sec->has_tls_get_addr_call | |
| 8481 | && h != NULL | |
| 8482 | && (h == &htab->tls_get_addr->elf | |
| 8483 | || h == &htab->tls_get_addr_fd->elf) | |
| 8484 | && !found_tls_get_addr_arg | |
| 8485 | && is_branch_reloc (r_type)) | |
| 8486 | { | |
| 25f53a85 | 8487 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8488 | "TLS optimization disabled\n"), |
| 8489 | ibfd, sec, rel->r_offset); | |
| 8490 | ret = TRUE; | |
| 8491 | goto err_free_rel; | |
| 8492 | } | |
| 8493 | ||
| 8494 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8495 | switch (r_type) |
| 8496 | { | |
| 8497 | case R_PPC64_GOT_TLSLD16: | |
| 8498 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8499 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8500 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8501 | /* Fall through. */ |
| 102890f0 AM |
8502 | |
| 8503 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8504 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8505 | /* These relocs should never be against a symbol | |
| 8506 | defined in a shared lib. Leave them alone if | |
| 8507 | that turns out to be the case. */ | |
| 8508 | if (!is_local) | |
| 8509 | continue; | |
| 411e1bfb | 8510 | |
| 102890f0 | 8511 | /* LD -> LE */ |
| 411e1bfb | 8512 | tls_set = 0; |
| 102890f0 AM |
8513 | tls_clear = TLS_LD; |
| 8514 | tls_type = TLS_TLS | TLS_LD; | |
| 8515 | break; | |
| 411e1bfb | 8516 | |
| 102890f0 AM |
8517 | case R_PPC64_GOT_TLSGD16: |
| 8518 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8519 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8520 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8521 | /* Fall through. */ |
| 102890f0 AM |
8522 | |
| 8523 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8524 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8525 | if (ok_tprel) | |
| 8526 | /* GD -> LE */ | |
| 411e1bfb | 8527 | tls_set = 0; |
| 102890f0 AM |
8528 | else |
| 8529 | /* GD -> IE */ | |
| 8530 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8531 | tls_clear = TLS_GD; | |
| 8532 | tls_type = TLS_TLS | TLS_GD; | |
| 8533 | break; | |
| 8534 | ||
| 8535 | case R_PPC64_GOT_TPREL16_DS: | |
| 8536 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8537 | case R_PPC64_GOT_TPREL16_HI: | |
| 8538 | case R_PPC64_GOT_TPREL16_HA: | |
| 8539 | if (ok_tprel) | |
| 8540 | { | |
| 8541 | /* IE -> LE */ | |
| 8542 | tls_set = 0; | |
| 8543 | tls_clear = TLS_TPREL; | |
| 8544 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8545 | break; | |
| 8546 | } | |
| 411e1bfb AM |
8547 | continue; |
| 8548 | ||
| 727fc41e AM |
8549 | case R_PPC64_TLSGD: |
| 8550 | case R_PPC64_TLSLD: | |
| 663a1470 | 8551 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8552 | /* Fall through. */ |
| 663a1470 AM |
8553 | |
| 8554 | case R_PPC64_TLS: | |
| 8555 | case R_PPC64_TOC16: | |
| 8556 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8557 | if (sym_sec == NULL || sym_sec != toc) |
| 8558 | continue; | |
| 8559 | ||
| 8560 | /* Mark this toc entry as referenced by a TLS | |
| 8561 | code sequence. We can do that now in the | |
| 8562 | case of R_PPC64_TLS, and after checking for | |
| 8563 | tls_get_addr for the TOC16 relocs. */ | |
| 8564 | if (toc_ref == NULL) | |
| 663a1470 AM |
8565 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8566 | if (toc_ref == NULL) | |
| 8567 | goto err_free_rel; | |
| 8568 | ||
| 102890f0 AM |
8569 | if (h != NULL) |
| 8570 | value = h->root.u.def.value; | |
| 8571 | else | |
| 8572 | value = sym->st_value; | |
| 8573 | value += rel->r_addend; | |
| 73242275 AM |
8574 | if (value % 8 != 0) |
| 8575 | continue; | |
| 8576 | BFD_ASSERT (value < toc->size | |
| 8577 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8578 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8579 | if (r_type == R_PPC64_TLS |
| 8580 | || r_type == R_PPC64_TLSGD | |
| 8581 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8582 | { |
| 8583 | toc_ref[toc_ref_index] = 1; | |
| 8584 | continue; | |
| 8585 | } | |
| 8586 | ||
| 8587 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8588 | continue; | |
| 8589 | ||
| 8590 | tls_set = 0; | |
| 8591 | tls_clear = 0; | |
| 8592 | expecting_tls_get_addr = 2; | |
| 8593 | break; | |
| 8594 | ||
| 8595 | case R_PPC64_TPREL64: | |
| 8596 | if (pass == 0 | |
| 8597 | || sec != toc | |
| 8598 | || toc_ref == NULL | |
| 663a1470 | 8599 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8600 | continue; |
| 8601 | if (ok_tprel) | |
| 8602 | { | |
| 8603 | /* IE -> LE */ | |
| 8604 | tls_set = TLS_EXPLICIT; | |
| 8605 | tls_clear = TLS_TPREL; | |
| 8606 | break; | |
| 8607 | } | |
| 8608 | continue; | |
| 8609 | ||
| 8610 | case R_PPC64_DTPMOD64: | |
| 8611 | if (pass == 0 | |
| 8612 | || sec != toc | |
| 8613 | || toc_ref == NULL | |
| 663a1470 | 8614 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8615 | continue; |
| 8616 | if (rel + 1 < relend | |
| 8617 | && (rel[1].r_info | |
| 8618 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8619 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8620 | { | |
| 8621 | if (ok_tprel) | |
| 8622 | /* GD -> LE */ | |
| 8623 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8624 | else | |
| 8625 | /* GD -> IE */ | |
| 8626 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8627 | tls_clear = TLS_GD; | |
| 8628 | } | |
| 8629 | else | |
| 8630 | { | |
| 8631 | if (!is_local) | |
| 8632 | continue; | |
| 8633 | ||
| 8634 | /* LD -> LE */ | |
| 8635 | tls_set = TLS_EXPLICIT; | |
| 8636 | tls_clear = TLS_LD; | |
| 8637 | } | |
| 8638 | break; | |
| 8639 | ||
| 8640 | default: | |
| 8641 | continue; | |
| 8642 | } | |
| 8643 | ||
| 8644 | if (pass == 0) | |
| 8645 | { | |
| 727fc41e AM |
8646 | if (!expecting_tls_get_addr |
| 8647 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8648 | continue; |
| 8649 | ||
| 3a71aa26 AM |
8650 | if (rel + 1 < relend |
| 8651 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8652 | htab->tls_get_addr, | |
| 8653 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8654 | { |
| 3a71aa26 | 8655 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8656 | { |
| 3a71aa26 | 8657 | /* Check for toc tls entries. */ |
| f961d9dd | 8658 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8659 | int retval; |
| 8660 | ||
| 8661 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8662 | &locsyms, | |
| 8663 | rel, ibfd); | |
| 8664 | if (retval == 0) | |
| 8665 | goto err_free_rel; | |
| 663a1470 AM |
8666 | if (toc_tls != NULL) |
| 8667 | { | |
| 8668 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8669 | found_tls_get_addr_arg = 1; | |
| 8670 | if (retval > 1) | |
| 8671 | toc_ref[toc_ref_index] = 1; | |
| 8672 | } | |
| 102890f0 | 8673 | } |
| 3a71aa26 | 8674 | continue; |
| 102890f0 AM |
8675 | } |
| 8676 | ||
| 8677 | if (expecting_tls_get_addr != 1) | |
| 8678 | continue; | |
| 8679 | ||
| 8680 | /* Uh oh, we didn't find the expected call. We | |
| 8681 | could just mark this symbol to exclude it | |
| 8682 | from tls optimization but it's safer to skip | |
| 663a1470 | 8683 | the entire optimization. */ |
| 695344c0 | 8684 | /* xgettext:c-format */ |
| 25f53a85 | 8685 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8686 | "TLS optimization disabled\n"), |
| 8687 | ibfd, sec, rel->r_offset); | |
| 8688 | ret = TRUE; | |
| 8689 | goto err_free_rel; | |
| 102890f0 AM |
8690 | } |
| 8691 | ||
| 85f7a9cb | 8692 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8693 | { |
| 8694 | struct plt_entry *ent; | |
| 8695 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8696 | ent != NULL; | |
| 8697 | ent = ent->next) | |
| 8698 | if (ent->addend == 0) | |
| 411e1bfb | 8699 | { |
| 102890f0 | 8700 | if (ent->plt.refcount > 0) |
| 30038c59 | 8701 | { |
| 102890f0 AM |
8702 | ent->plt.refcount -= 1; |
| 8703 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8704 | } |
| 102890f0 | 8705 | break; |
| 411e1bfb | 8706 | } |
| 102890f0 | 8707 | } |
| 411e1bfb | 8708 | |
| 85f7a9cb | 8709 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8710 | { |
| 8711 | struct plt_entry *ent; | |
| 8712 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8713 | ent != NULL; | |
| 8714 | ent = ent->next) | |
| 8715 | if (ent->addend == 0) | |
| 411e1bfb | 8716 | { |
| 102890f0 AM |
8717 | if (ent->plt.refcount > 0) |
| 8718 | ent->plt.refcount -= 1; | |
| 8719 | break; | |
| 411e1bfb | 8720 | } |
| 102890f0 | 8721 | } |
| 411e1bfb | 8722 | |
| 102890f0 | 8723 | if (tls_clear == 0) |
| 30038c59 AM |
8724 | continue; |
| 8725 | ||
| 102890f0 AM |
8726 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8727 | { | |
| 8728 | struct got_entry *ent; | |
| 411e1bfb | 8729 | |
| 102890f0 AM |
8730 | /* Adjust got entry for this reloc. */ |
| 8731 | if (h != NULL) | |
| 8732 | ent = h->got.glist; | |
| 8733 | else | |
| 8734 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8735 | |
| 102890f0 AM |
8736 | for (; ent != NULL; ent = ent->next) |
| 8737 | if (ent->addend == rel->r_addend | |
| 8738 | && ent->owner == ibfd | |
| 8739 | && ent->tls_type == tls_type) | |
| 8740 | break; | |
| 8741 | if (ent == NULL) | |
| 8742 | abort (); | |
| 411e1bfb | 8743 | |
| 102890f0 AM |
8744 | if (tls_set == 0) |
| 8745 | { | |
| 8746 | /* We managed to get rid of a got entry. */ | |
| 8747 | if (ent->got.refcount > 0) | |
| 8748 | ent->got.refcount -= 1; | |
| 8749 | } | |
| 8750 | } | |
| 8751 | else | |
| 8752 | { | |
| 8753 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8754 | we'll lose one or two dyn relocs. */ | |
| 8755 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8756 | NULL, h, sym)) |
| 102890f0 | 8757 | return FALSE; |
| 411e1bfb | 8758 | |
| 102890f0 AM |
8759 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8760 | { | |
| 8761 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8762 | NULL, h, sym)) |
| 102890f0 AM |
8763 | return FALSE; |
| 8764 | } | |
| 8765 | } | |
| 411e1bfb | 8766 | |
| 102890f0 AM |
8767 | *tls_mask |= tls_set; |
| 8768 | *tls_mask &= ~tls_clear; | |
| 8769 | } | |
| 8c1d1bb8 | 8770 | |
| 102890f0 AM |
8771 | if (elf_section_data (sec)->relocs != relstart) |
| 8772 | free (relstart); | |
| 8773 | } | |
| 411e1bfb | 8774 | |
| 663a1470 AM |
8775 | if (locsyms != NULL |
| 8776 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8777 | { | |
| 8778 | if (!info->keep_memory) | |
| 8779 | free (locsyms); | |
| 8780 | else | |
| 8781 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8782 | } | |
| 8783 | } | |
| 411e1bfb | 8784 | |
| 663a1470 AM |
8785 | if (toc_ref != NULL) |
| 8786 | free (toc_ref); | |
| 9a23f96e | 8787 | htab->do_tls_opt = 1; |
| b34976b6 | 8788 | return TRUE; |
| 1e2f5b6e | 8789 | } |
| b34976b6 | 8790 | |
| c5614fa4 AM |
8791 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8792 | the values of any global symbols in a toc section that has been | |
| 8793 | edited. Globals in toc sections should be a rarity, so this function | |
| 8794 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 8795 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
8796 | |
| 8797 | struct adjust_toc_info | |
| 8798 | { | |
| 8799 | asection *toc; | |
| 8800 | unsigned long *skip; | |
| 8801 | bfd_boolean global_toc_syms; | |
| 8802 | }; | |
| 8803 | ||
| ba761f19 AM |
8804 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8805 | ||
| c5614fa4 AM |
8806 | static bfd_boolean |
| 8807 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8808 | { | |
| 8809 | struct ppc_link_hash_entry *eh; | |
| 8810 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8811 | unsigned long i; |
| c5614fa4 | 8812 | |
| c5614fa4 AM |
8813 | if (h->root.type != bfd_link_hash_defined |
| 8814 | && h->root.type != bfd_link_hash_defweak) | |
| 8815 | return TRUE; | |
| 8816 | ||
| 8817 | eh = (struct ppc_link_hash_entry *) h; | |
| 8818 | if (eh->adjust_done) | |
| 8819 | return TRUE; | |
| 8820 | ||
| 8821 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8822 | { | |
| 854b41e7 AM |
8823 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8824 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8825 | else |
| 854b41e7 AM |
8826 | i = eh->elf.root.u.def.value >> 3; |
| 8827 | ||
| ba761f19 | 8828 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8829 | { |
| 4eca0228 | 8830 | _bfd_error_handler |
| 854b41e7 AM |
8831 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8832 | do | |
| 8833 | ++i; | |
| ba761f19 | 8834 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8835 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8836 | } |
| 854b41e7 AM |
8837 | |
| 8838 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8839 | eh->adjust_done = 1; |
| 8840 | } | |
| 8841 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8842 | toc_inf->global_toc_syms = TRUE; | |
| 8843 | ||
| 8844 | return TRUE; | |
| 8845 | } | |
| 8846 | ||
| 39eeab25 AM |
8847 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8848 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8849 | |
| 8850 | static bfd_boolean | |
| 39eeab25 | 8851 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8852 | { |
| 39eeab25 AM |
8853 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8854 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8855 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8856 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8857 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8858 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8859 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8860 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8861 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8862 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8863 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8864 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8865 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8866 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8867 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8868 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8869 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8870 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8871 | defined for the reduced D field in psq_lu then those | |
| 8872 | will need testing too. */ | |
| 8873 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8874 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8875 | && (insn & 1) == 0) | |
| 8876 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8877 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8878 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8879 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8880 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8881 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8882 | } |
| 8883 | ||
| c5614fa4 AM |
8884 | /* Examine all relocs referencing .toc sections in order to remove |
| 8885 | unused .toc entries. */ | |
| 8886 | ||
| 8887 | bfd_boolean | |
| 33c0ec9d | 8888 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8889 | { |
| 8890 | bfd *ibfd; | |
| 8891 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8892 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8893 | |
| 67f0cbdb | 8894 | htab->do_toc_opt = 1; |
| c5614fa4 | 8895 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8896 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8897 | { |
| 8898 | asection *toc, *sec; | |
| 8899 | Elf_Internal_Shdr *symtab_hdr; | |
| 8900 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8901 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8902 | unsigned long *skip, *drop; |
| 8903 | unsigned char *used; | |
| 8904 | unsigned char *keep, last, some_unused; | |
| 8905 | ||
| 854b41e7 AM |
8906 | if (!is_ppc64_elf (ibfd)) |
| 8907 | continue; | |
| 8908 | ||
| c5614fa4 AM |
8909 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8910 | if (toc == NULL | |
| 92b7a70f | 8911 | || toc->size == 0 |
| dbaa2011 AM |
8912 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8913 | || discarded_section (toc)) | |
| c5614fa4 AM |
8914 | continue; |
| 8915 | ||
| 425b145b | 8916 | toc_relocs = NULL; |
| c5614fa4 | 8917 | local_syms = NULL; |
| 0ffa91dd | 8918 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8919 | |
| 8920 | /* Look at sections dropped from the final link. */ | |
| 8921 | skip = NULL; | |
| 8922 | relstart = NULL; | |
| 8923 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8924 | { | |
| 8925 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8926 | || !discarded_section (sec) |
| c5614fa4 AM |
8927 | || get_opd_info (sec) |
| 8928 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8929 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8930 | continue; | |
| 8931 | ||
| 8932 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8933 | if (relstart == NULL) | |
| 8934 | goto error_ret; | |
| 8935 | ||
| 8936 | /* Run through the relocs to see which toc entries might be | |
| 8937 | unused. */ | |
| 8938 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8939 | { | |
| 8940 | enum elf_ppc64_reloc_type r_type; | |
| 8941 | unsigned long r_symndx; | |
| 8942 | asection *sym_sec; | |
| 8943 | struct elf_link_hash_entry *h; | |
| 8944 | Elf_Internal_Sym *sym; | |
| 8945 | bfd_vma val; | |
| 8946 | ||
| 8947 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8948 | switch (r_type) | |
| 8949 | { | |
| 8950 | default: | |
| 8951 | continue; | |
| 8952 | ||
| 8953 | case R_PPC64_TOC16: | |
| 8954 | case R_PPC64_TOC16_LO: | |
| 8955 | case R_PPC64_TOC16_HI: | |
| 8956 | case R_PPC64_TOC16_HA: | |
| 8957 | case R_PPC64_TOC16_DS: | |
| 8958 | case R_PPC64_TOC16_LO_DS: | |
| 8959 | break; | |
| 8960 | } | |
| 8961 | ||
| 8962 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8963 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8964 | r_symndx, ibfd)) | |
| 8965 | goto error_ret; | |
| 8966 | ||
| 8967 | if (sym_sec != toc) | |
| 8968 | continue; | |
| 8969 | ||
| 8970 | if (h != NULL) | |
| 8971 | val = h->root.u.def.value; | |
| 8972 | else | |
| 8973 | val = sym->st_value; | |
| 8974 | val += rel->r_addend; | |
| 8975 | ||
| 8976 | if (val >= toc->size) | |
| 8977 | continue; | |
| 8978 | ||
| 8979 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8980 | If not, don't mark as unused. */ | |
| 8981 | if (val & 7) | |
| 8982 | continue; | |
| 8983 | ||
| 8984 | if (skip == NULL) | |
| 8985 | { | |
| 854b41e7 | 8986 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8987 | if (skip == NULL) |
| 8988 | goto error_ret; | |
| 8989 | } | |
| 8990 | ||
| ba761f19 | 8991 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8992 | } |
| 8993 | ||
| 8994 | if (elf_section_data (sec)->relocs != relstart) | |
| 8995 | free (relstart); | |
| 8996 | } | |
| 8997 | ||
| ba761f19 AM |
8998 | /* For largetoc loads of address constants, we can convert |
| 8999 | . addis rx,2,addr@got@ha | |
| 9000 | . ld ry,addr@got@l(rx) | |
| 9001 | to | |
| 9002 | . addis rx,2,addr@toc@ha | |
| 9003 | . addi ry,rx,addr@toc@l | |
| 9004 | when addr is within 2G of the toc pointer. This then means | |
| 9005 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9006 | |
| ba761f19 AM |
9007 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9008 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9009 | && toc->reloc_count != 0) | |
| 9010 | { | |
| 9011 | /* Read toc relocs. */ | |
| 425b145b AM |
9012 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9013 | info->keep_memory); | |
| 9014 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9015 | goto error_ret; |
| 9016 | ||
| 425b145b | 9017 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9018 | { |
| 9019 | enum elf_ppc64_reloc_type r_type; | |
| 9020 | unsigned long r_symndx; | |
| 9021 | asection *sym_sec; | |
| 9022 | struct elf_link_hash_entry *h; | |
| 9023 | Elf_Internal_Sym *sym; | |
| 9024 | bfd_vma val, addr; | |
| 9025 | ||
| 9026 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9027 | if (r_type != R_PPC64_ADDR64) | |
| 9028 | continue; | |
| 9029 | ||
| 9030 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9031 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9032 | r_symndx, ibfd)) | |
| 9033 | goto error_ret; | |
| 9034 | ||
| 425b145b | 9035 | if (sym_sec == NULL |
| c27b8c2a | 9036 | || sym_sec->output_section == NULL |
| dbaa2011 | 9037 | || discarded_section (sym_sec)) |
| 425b145b AM |
9038 | continue; |
| 9039 | ||
| afe397ea | 9040 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9041 | continue; |
| 9042 | ||
| 9043 | if (h != NULL) | |
| bddc25c9 AM |
9044 | { |
| 9045 | if (h->type == STT_GNU_IFUNC) | |
| 9046 | continue; | |
| 9047 | val = h->root.u.def.value; | |
| 9048 | } | |
| ba761f19 | 9049 | else |
| bddc25c9 AM |
9050 | { |
| 9051 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9052 | continue; | |
| 9053 | val = sym->st_value; | |
| 9054 | } | |
| ba761f19 AM |
9055 | val += rel->r_addend; |
| 9056 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9057 | ||
| 9058 | /* We don't yet know the exact toc pointer value, but we | |
| 9059 | know it will be somewhere in the toc section. Don't | |
| 9060 | optimize if the difference from any possible toc | |
| 9061 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9062 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9063 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9064 | continue; | |
| 9065 | ||
| 9066 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9067 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9068 | continue; | |
| 9069 | ||
| 9070 | if (skip == NULL) | |
| 9071 | { | |
| 9072 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9073 | if (skip == NULL) | |
| 9074 | goto error_ret; | |
| 9075 | } | |
| 9076 | ||
| 9077 | skip[rel->r_offset >> 3] | |
| 425b145b | 9078 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9079 | } |
| ba761f19 AM |
9080 | } |
| 9081 | ||
| c5614fa4 AM |
9082 | if (skip == NULL) |
| 9083 | continue; | |
| 9084 | ||
| 9085 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9086 | if (used == NULL) | |
| 9087 | { | |
| 9088 | error_ret: | |
| 9089 | if (local_syms != NULL | |
| 9090 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9091 | free (local_syms); | |
| 9092 | if (sec != NULL | |
| 9093 | && relstart != NULL | |
| 9094 | && elf_section_data (sec)->relocs != relstart) | |
| 9095 | free (relstart); | |
| 425b145b AM |
9096 | if (toc_relocs != NULL |
| 9097 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9098 | free (toc_relocs); | |
| c5614fa4 AM |
9099 | if (skip != NULL) |
| 9100 | free (skip); | |
| 9101 | return FALSE; | |
| 9102 | } | |
| 9103 | ||
| 30038c59 AM |
9104 | /* Now check all kept sections that might reference the toc. |
| 9105 | Check the toc itself last. */ | |
| 9106 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9107 | : ibfd->sections); | |
| c5614fa4 | 9108 | sec != NULL; |
| c5614fa4 | 9109 | sec = (sec == toc ? NULL |
| c5614fa4 | 9110 | : sec->next == NULL ? toc |
| 30038c59 | 9111 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9112 | : sec->next)) |
| 9113 | { | |
| 9114 | int repeat; | |
| 9115 | ||
| 9116 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9117 | || discarded_section (sec) |
| c5614fa4 AM |
9118 | || get_opd_info (sec) |
| 9119 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9120 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9121 | continue; | |
| 9122 | ||
| 854b41e7 AM |
9123 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9124 | info->keep_memory); | |
| c5614fa4 | 9125 | if (relstart == NULL) |
| 2915c55b JK |
9126 | { |
| 9127 | free (used); | |
| 9128 | goto error_ret; | |
| 9129 | } | |
| c5614fa4 AM |
9130 | |
| 9131 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9132 | do |
| d4f1ee75 AM |
9133 | { |
| 9134 | repeat = 0; | |
| 9135 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9136 | { | |
| 9137 | enum elf_ppc64_reloc_type r_type; | |
| 9138 | unsigned long r_symndx; | |
| 9139 | asection *sym_sec; | |
| 9140 | struct elf_link_hash_entry *h; | |
| 9141 | Elf_Internal_Sym *sym; | |
| 9142 | bfd_vma val; | |
| 9143 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9144 | |
| d4f1ee75 AM |
9145 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9146 | switch (r_type) | |
| 9147 | { | |
| 9148 | default: | |
| 9149 | insn_check = no_check; | |
| 9150 | break; | |
| 98528052 | 9151 | |
| d4f1ee75 AM |
9152 | case R_PPC64_GOT_TLSLD16_HA: |
| 9153 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9154 | case R_PPC64_GOT_TPREL16_HA: | |
| 9155 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9156 | case R_PPC64_GOT16_HA: | |
| 9157 | case R_PPC64_TOC16_HA: | |
| 9158 | insn_check = check_ha; | |
| 9159 | break; | |
| 98528052 | 9160 | |
| d4f1ee75 AM |
9161 | case R_PPC64_GOT_TLSLD16_LO: |
| 9162 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9163 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9164 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9165 | case R_PPC64_GOT16_LO: | |
| 9166 | case R_PPC64_GOT16_LO_DS: | |
| 9167 | case R_PPC64_TOC16_LO: | |
| 9168 | case R_PPC64_TOC16_LO_DS: | |
| 9169 | insn_check = check_lo; | |
| 9170 | break; | |
| 9171 | } | |
| 560c8763 | 9172 | |
| d4f1ee75 AM |
9173 | if (insn_check != no_check) |
| 9174 | { | |
| 9175 | bfd_vma off = rel->r_offset & ~3; | |
| 9176 | unsigned char buf[4]; | |
| 9177 | unsigned int insn; | |
| c5614fa4 | 9178 | |
| d4f1ee75 AM |
9179 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9180 | { | |
| 9181 | free (used); | |
| 9182 | goto error_ret; | |
| 9183 | } | |
| 9184 | insn = bfd_get_32 (ibfd, buf); | |
| 9185 | if (insn_check == check_lo | |
| 39eeab25 | 9186 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9187 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9188 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9189 | { | |
| 9190 | char str[12]; | |
| 9191 | ||
| 9192 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9193 | sprintf (str, "%#08x", insn); | |
| 9194 | info->callbacks->einfo | |
| 695344c0 | 9195 | /* xgettext:c-format */ |
| 174d0a74 | 9196 | (_("%H: toc optimization is not supported for" |
| cf97bcb0 | 9197 | " %s instruction\n"), |
| d4f1ee75 AM |
9198 | ibfd, sec, rel->r_offset & ~3, str); |
| 9199 | } | |
| 9200 | } | |
| c5614fa4 | 9201 | |
| d4f1ee75 AM |
9202 | switch (r_type) |
| 9203 | { | |
| 9204 | case R_PPC64_TOC16: | |
| 9205 | case R_PPC64_TOC16_LO: | |
| 9206 | case R_PPC64_TOC16_HI: | |
| 9207 | case R_PPC64_TOC16_HA: | |
| 9208 | case R_PPC64_TOC16_DS: | |
| 9209 | case R_PPC64_TOC16_LO_DS: | |
| 9210 | /* In case we're taking addresses of toc entries. */ | |
| 9211 | case R_PPC64_ADDR64: | |
| 9212 | break; | |
| c5614fa4 | 9213 | |
| d4f1ee75 AM |
9214 | default: |
| 9215 | continue; | |
| 9216 | } | |
| c5614fa4 | 9217 | |
| d4f1ee75 AM |
9218 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9219 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9220 | r_symndx, ibfd)) | |
| 9221 | { | |
| 9222 | free (used); | |
| 9223 | goto error_ret; | |
| 9224 | } | |
| c5614fa4 | 9225 | |
| d4f1ee75 AM |
9226 | if (sym_sec != toc) |
| 9227 | continue; | |
| c5614fa4 | 9228 | |
| d4f1ee75 AM |
9229 | if (h != NULL) |
| 9230 | val = h->root.u.def.value; | |
| 9231 | else | |
| 9232 | val = sym->st_value; | |
| 9233 | val += rel->r_addend; | |
| ba761f19 | 9234 | |
| d4f1ee75 AM |
9235 | if (val >= toc->size) |
| 9236 | continue; | |
| ba761f19 | 9237 | |
| d4f1ee75 AM |
9238 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9239 | { | |
| 9240 | bfd_vma off; | |
| 9241 | unsigned char opc; | |
| 9242 | ||
| 9243 | switch (r_type) | |
| 9244 | { | |
| 9245 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9246 | break; |
| ba761f19 | 9247 | |
| d4f1ee75 AM |
9248 | case R_PPC64_TOC16_LO_DS: |
| 9249 | off = rel->r_offset; | |
| 9250 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9251 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9252 | off, 1)) | |
| 9253 | { | |
| 9254 | free (used); | |
| 9255 | goto error_ret; | |
| 9256 | } | |
| 9257 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9258 | break; | |
| 1a0670f3 | 9259 | /* Fall through. */ |
| ba761f19 | 9260 | |
| d4f1ee75 AM |
9261 | default: |
| 9262 | /* Wrong sort of reloc, or not a ld. We may | |
| 9263 | as well clear ref_from_discarded too. */ | |
| 9264 | skip[val >> 3] = 0; | |
| 9265 | } | |
| 9266 | } | |
| 9267 | ||
| 9268 | if (sec != toc) | |
| 9269 | used[val >> 3] = 1; | |
| 9270 | /* For the toc section, we only mark as used if this | |
| 9271 | entry itself isn't unused. */ | |
| 9272 | else if ((used[rel->r_offset >> 3] | |
| 9273 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9274 | && !used[val >> 3]) | |
| 9275 | { | |
| 9276 | /* Do all the relocs again, to catch reference | |
| 9277 | chains. */ | |
| 9278 | repeat = 1; | |
| 9279 | used[val >> 3] = 1; | |
| 9280 | } | |
| 9281 | } | |
| 9282 | } | |
| c5614fa4 | 9283 | while (repeat); |
| 854b41e7 AM |
9284 | |
| 9285 | if (elf_section_data (sec)->relocs != relstart) | |
| 9286 | free (relstart); | |
| c5614fa4 AM |
9287 | } |
| 9288 | ||
| 9289 | /* Merge the used and skip arrays. Assume that TOC | |
| 9290 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9291 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9292 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9293 | drop < skip + (toc->size + 7) / 8; | |
| 9294 | ++drop, ++keep) | |
| 9295 | { | |
| 9296 | if (*keep) | |
| 9297 | { | |
| ba761f19 AM |
9298 | *drop &= ~ref_from_discarded; |
| 9299 | if ((*drop & can_optimize) != 0) | |
| 9300 | some_unused = 1; | |
| c5614fa4 AM |
9301 | last = 0; |
| 9302 | } | |
| b140b010 | 9303 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9304 | { |
| 9305 | some_unused = 1; | |
| ba761f19 | 9306 | last = ref_from_discarded; |
| c5614fa4 AM |
9307 | } |
| 9308 | else | |
| 9309 | *drop = last; | |
| 9310 | } | |
| 9311 | ||
| 9312 | free (used); | |
| 9313 | ||
| 9314 | if (some_unused) | |
| 9315 | { | |
| 9316 | bfd_byte *contents, *src; | |
| 9317 | unsigned long off; | |
| d62b3684 | 9318 | Elf_Internal_Sym *sym; |
| ba761f19 | 9319 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9320 | |
| 9321 | /* Shuffle the toc contents, and at the same time convert the | |
| 9322 | skip array from booleans into offsets. */ | |
| 9323 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9324 | goto error_ret; | |
| 9325 | ||
| 9326 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9327 | ||
| 9328 | for (src = contents, off = 0, drop = skip; | |
| 9329 | src < contents + toc->size; | |
| 9330 | src += 8, ++drop) | |
| 9331 | { | |
| ba761f19 AM |
9332 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9333 | off += 8; | |
| c5614fa4 AM |
9334 | else if (off != 0) |
| 9335 | { | |
| 9336 | *drop = off; | |
| 9337 | memcpy (src - off, src, 8); | |
| 9338 | } | |
| 9339 | } | |
| 854b41e7 | 9340 | *drop = off; |
| c5614fa4 AM |
9341 | toc->rawsize = toc->size; |
| 9342 | toc->size = src - contents - off; | |
| 9343 | ||
| ba761f19 AM |
9344 | /* Adjust addends for relocs against the toc section sym, |
| 9345 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9346 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9347 | { | |
| 9348 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9349 | || discarded_section (sec)) |
| c5614fa4 AM |
9350 | continue; |
| 9351 | ||
| 9352 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9353 | info->keep_memory); |
| c5614fa4 AM |
9354 | if (relstart == NULL) |
| 9355 | goto error_ret; | |
| 9356 | ||
| 9357 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9358 | { | |
| 9359 | enum elf_ppc64_reloc_type r_type; | |
| 9360 | unsigned long r_symndx; | |
| 9361 | asection *sym_sec; | |
| 9362 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9363 | bfd_vma val; |
| c5614fa4 AM |
9364 | |
| 9365 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9366 | switch (r_type) | |
| 9367 | { | |
| 9368 | default: | |
| 9369 | continue; | |
| 9370 | ||
| 9371 | case R_PPC64_TOC16: | |
| 9372 | case R_PPC64_TOC16_LO: | |
| 9373 | case R_PPC64_TOC16_HI: | |
| 9374 | case R_PPC64_TOC16_HA: | |
| 9375 | case R_PPC64_TOC16_DS: | |
| 9376 | case R_PPC64_TOC16_LO_DS: | |
| 9377 | case R_PPC64_ADDR64: | |
| 9378 | break; | |
| 9379 | } | |
| 9380 | ||
| 9381 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9382 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9383 | r_symndx, ibfd)) | |
| 9384 | goto error_ret; | |
| 9385 | ||
| ba761f19 | 9386 | if (sym_sec != toc) |
| c5614fa4 AM |
9387 | continue; |
| 9388 | ||
| ba761f19 AM |
9389 | if (h != NULL) |
| 9390 | val = h->root.u.def.value; | |
| 9391 | else | |
| 9392 | { | |
| 9393 | val = sym->st_value; | |
| 9394 | if (val != 0) | |
| 9395 | local_toc_syms = TRUE; | |
| 9396 | } | |
| 9397 | ||
| 9398 | val += rel->r_addend; | |
| 854b41e7 AM |
9399 | |
| 9400 | if (val > toc->rawsize) | |
| 9401 | val = toc->rawsize; | |
| ba761f19 AM |
9402 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9403 | continue; | |
| 9404 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9405 | { | |
| 9406 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9407 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9408 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9409 | ||
| 9410 | switch (r_type) | |
| 9411 | { | |
| 9412 | case R_PPC64_TOC16_HA: | |
| 9413 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9414 | break; | |
| 9415 | ||
| 9416 | case R_PPC64_TOC16_LO_DS: | |
| 9417 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9418 | break; | |
| 9419 | ||
| 9420 | default: | |
| 28942f62 AM |
9421 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9422 | ppc_howto_init (); | |
| b140b010 | 9423 | info->callbacks->einfo |
| 695344c0 | 9424 | /* xgettext:c-format */ |
| 174d0a74 | 9425 | (_("%H: %s references " |
| b140b010 AM |
9426 | "optimized away TOC entry\n"), |
| 9427 | ibfd, sec, rel->r_offset, | |
| 9428 | ppc64_elf_howto_table[r_type]->name); | |
| 9429 | bfd_set_error (bfd_error_bad_value); | |
| 9430 | goto error_ret; | |
| ba761f19 AM |
9431 | } |
| 9432 | rel->r_addend = tocrel->r_addend; | |
| 9433 | elf_section_data (sec)->relocs = relstart; | |
| 9434 | continue; | |
| 9435 | } | |
| 9436 | ||
| 9437 | if (h != NULL || sym->st_value != 0) | |
| 9438 | continue; | |
| 854b41e7 AM |
9439 | |
| 9440 | rel->r_addend -= skip[val >> 3]; | |
| 9441 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9442 | } |
| 854b41e7 AM |
9443 | |
| 9444 | if (elf_section_data (sec)->relocs != relstart) | |
| 9445 | free (relstart); | |
| c5614fa4 AM |
9446 | } |
| 9447 | ||
| 9448 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9449 | but handle them anyway. */ | |
| df22d223 AM |
9450 | if (local_syms != NULL) |
| 9451 | for (sym = local_syms; | |
| 9452 | sym < local_syms + symtab_hdr->sh_info; | |
| 9453 | ++sym) | |
| 9454 | if (sym->st_value != 0 | |
| 9455 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9456 | { | |
| 9457 | unsigned long i; | |
| 854b41e7 | 9458 | |
| df22d223 AM |
9459 | if (sym->st_value > toc->rawsize) |
| 9460 | i = toc->rawsize >> 3; | |
| 9461 | else | |
| 9462 | i = sym->st_value >> 3; | |
| 854b41e7 | 9463 | |
| df22d223 AM |
9464 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9465 | { | |
| 9466 | if (local_toc_syms) | |
| 4eca0228 | 9467 | _bfd_error_handler |
| df22d223 AM |
9468 | (_("%s defined on removed toc entry"), |
| 9469 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9470 | do | |
| 9471 | ++i; | |
| 9472 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9473 | sym->st_value = (bfd_vma) i << 3; | |
| 9474 | } | |
| d62b3684 | 9475 | |
| df22d223 AM |
9476 | sym->st_value -= skip[i]; |
| 9477 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9478 | } | |
| c5614fa4 | 9479 | |
| 854b41e7 | 9480 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9481 | if (toc_inf.global_toc_syms) |
| 9482 | { | |
| 9483 | toc_inf.toc = toc; | |
| 9484 | toc_inf.skip = skip; | |
| 9485 | toc_inf.global_toc_syms = FALSE; | |
| 9486 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9487 | &toc_inf); | |
| 9488 | } | |
| 854b41e7 AM |
9489 | |
| 9490 | if (toc->reloc_count != 0) | |
| 9491 | { | |
| d4730f92 | 9492 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9493 | Elf_Internal_Rela *wrel; |
| 9494 | bfd_size_type sz; | |
| 9495 | ||
| 854b41e7 | 9496 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9497 | if (toc_relocs == NULL) |
| 9498 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9499 | info->keep_memory); | |
| 9500 | if (toc_relocs == NULL) | |
| 9501 | goto error_ret; | |
| 9502 | ||
| 425b145b AM |
9503 | wrel = toc_relocs; |
| 9504 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9505 | if ((skip[rel->r_offset >> 3] |
| 9506 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9507 | { |
| 9508 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9509 | wrel->r_info = rel->r_info; | |
| 9510 | wrel->r_addend = rel->r_addend; | |
| 9511 | ++wrel; | |
| 9512 | } | |
| 9513 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9514 | &local_syms, NULL, NULL)) | |
| 9515 | goto error_ret; | |
| 9516 | ||
| 425b145b AM |
9517 | elf_section_data (toc)->relocs = toc_relocs; |
| 9518 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9519 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9520 | sz = rel_hdr->sh_entsize; | |
| 9521 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9522 | } |
| c5614fa4 | 9523 | } |
| 28be611c AM |
9524 | else if (toc_relocs != NULL |
| 9525 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9526 | free (toc_relocs); |
| c5614fa4 AM |
9527 | |
| 9528 | if (local_syms != NULL | |
| 9529 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9530 | { | |
| 9531 | if (!info->keep_memory) | |
| 9532 | free (local_syms); | |
| 9533 | else | |
| 9534 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9535 | } | |
| 9536 | free (skip); | |
| 9537 | } | |
| 9538 | ||
| 9539 | return TRUE; | |
| 9540 | } | |
| 9541 | ||
| 1bbe0902 AM |
9542 | /* Return true iff input section I references the TOC using |
| 9543 | instructions limited to +/-32k offsets. */ | |
| 9544 | ||
| 9545 | bfd_boolean | |
| 9546 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9547 | { | |
| 9548 | return (is_ppc64_elf (i->owner) | |
| 9549 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9550 | } | |
| 9551 | ||
| 927be08e AM |
9552 | /* Allocate space for one GOT entry. */ |
| 9553 | ||
| 9554 | static void | |
| 9555 | allocate_got (struct elf_link_hash_entry *h, | |
| 9556 | struct bfd_link_info *info, | |
| 9557 | struct got_entry *gent) | |
| 9558 | { | |
| 9559 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9560 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9561 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9562 | ? 16 : 8); | |
| 9563 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9564 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9565 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9566 | ||
| 9567 | gent->got.offset = got->size; | |
| 9568 | got->size += entsize; | |
| 9569 | ||
| 19e08130 | 9570 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9571 | { |
| 33e44f2e | 9572 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9573 | htab->got_reli_size += rentsize; |
| 927be08e | 9574 | } |
| f15d0b54 AM |
9575 | else if (((bfd_link_pic (info) |
| 9576 | && !((gent->tls_type & TLS_TPREL) != 0 | |
| 9577 | && bfd_link_executable (info) | |
| 9578 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
| f0158f44 AM |
9579 | || (htab->elf.dynamic_sections_created |
| 9580 | && h->dynindx != -1 | |
| 9581 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9582 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9583 | { |
| 19e08130 | 9584 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9585 | relgot->size += rentsize; |
| 927be08e AM |
9586 | } |
| 9587 | } | |
| 9588 | ||
| 7865406b AM |
9589 | /* This function merges got entries in the same toc group. */ |
| 9590 | ||
| 9591 | static void | |
| 9592 | merge_got_entries (struct got_entry **pent) | |
| 9593 | { | |
| 9594 | struct got_entry *ent, *ent2; | |
| 9595 | ||
| 9596 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9597 | if (!ent->is_indirect) | |
| 9598 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9599 | if (!ent2->is_indirect | |
| 9600 | && ent2->addend == ent->addend | |
| 9601 | && ent2->tls_type == ent->tls_type | |
| 9602 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9603 | { | |
| 9604 | ent2->is_indirect = TRUE; | |
| 9605 | ent2->got.ent = ent; | |
| 9606 | } | |
| 9607 | } | |
| 9608 | ||
| 46434633 | 9609 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9610 | |
| 9611 | static bfd_boolean | |
| 46434633 AM |
9612 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9613 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9614 | { |
| 9615 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9616 | ||
| 9617 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9618 | && ((info->dynamic_undefined_weak != 0 |
| 9619 | && h->root.type == bfd_link_hash_undefweak) | |
| 9620 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9621 | && h->dynindx == -1 |
| 9622 | && !h->forced_local | |
| 9623 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9624 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9625 | return TRUE; | |
| 9626 | } | |
| 9627 | ||
| 65f38f15 AM |
9628 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9629 | dynamic relocs. */ | |
| 5bd4f169 | 9630 | |
| b34976b6 | 9631 | static bfd_boolean |
| 4ce794b7 | 9632 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9633 | { |
| 65f38f15 AM |
9634 | struct bfd_link_info *info; |
| 9635 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9636 | asection *s; |
| 65f38f15 | 9637 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9638 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9639 | |
| e92d460e | 9640 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9641 | return TRUE; |
| 5bd4f169 | 9642 | |
| 65f38f15 AM |
9643 | info = (struct bfd_link_info *) inf; |
| 9644 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9645 | if (htab == NULL) |
| 9646 | return FALSE; | |
| 5bd4f169 | 9647 | |
| 951fd09b AM |
9648 | eh = (struct ppc_link_hash_entry *) h; |
| 9649 | /* Run through the TLS GD got entries first if we're changing them | |
| 9650 | to TPREL. */ | |
| e7b938ca | 9651 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9652 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9653 | if (gent->got.refcount > 0 | |
| 9654 | && (gent->tls_type & TLS_GD) != 0) | |
| 9655 | { | |
| 9656 | /* This was a GD entry that has been converted to TPREL. If | |
| 9657 | there happens to be a TPREL entry we can use that one. */ | |
| 9658 | struct got_entry *ent; | |
| 9659 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9660 | if (ent->got.refcount > 0 | |
| 9661 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9662 | && ent->addend == gent->addend |
| 9663 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9664 | { |
| 9665 | gent->got.refcount = 0; | |
| 9666 | break; | |
| 9667 | } | |
| 9668 | ||
| 9669 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9670 | if (gent->got.refcount != 0) | |
| 9671 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9672 | } | |
| 9673 | ||
| 7865406b AM |
9674 | /* Remove any list entry that won't generate a word in the GOT before |
| 9675 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9676 | entries. */ | |
| 0b8bcf0d AM |
9677 | pgent = &h->got.glist; |
| 9678 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9679 | if (gent->got.refcount > 0) |
| 7865406b AM |
9680 | { |
| 9681 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9682 | && !h->def_dynamic) | |
| 9683 | { | |
| 9684 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9685 | *pgent = gent->next; | |
| 9686 | } | |
| 9687 | else | |
| 9688 | pgent = &gent->next; | |
| 9689 | } | |
| 9690 | else | |
| 9691 | *pgent = gent->next; | |
| 9692 | ||
| 9693 | if (!htab->do_multi_toc) | |
| 9694 | merge_got_entries (&h->got.glist); | |
| 9695 | ||
| 9696 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9697 | if (!gent->is_indirect) | |
| 411e1bfb | 9698 | { |
| 46434633 AM |
9699 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9700 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9701 | return FALSE; |
| 65f38f15 | 9702 | |
| 0c8d6e5c | 9703 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9704 | abort (); |
| 0ffa91dd | 9705 | |
| 927be08e | 9706 | allocate_got (h, info, gent); |
| 411e1bfb | 9707 | } |
| 65f38f15 | 9708 | |
| 954b63d4 AM |
9709 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9710 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9711 | if (!htab->elf.dynamic_sections_created |
| 9712 | && h->type != STT_GNU_IFUNC) | |
| 9713 | eh->dyn_relocs = NULL; | |
| 9714 | ||
| 529fe20e AM |
9715 | /* Discard relocs on undefined symbols that must be local. */ |
| 9716 | else if (h->root.type == bfd_link_hash_undefined | |
| 9717 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9718 | eh->dyn_relocs = NULL; | |
| 9719 | ||
| 954b63d4 AM |
9720 | /* Also discard relocs on undefined weak syms with non-default |
| 9721 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 9722 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
9723 | eh->dyn_relocs = NULL; |
| 9724 | ||
| 8a2058b5 | 9725 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 9726 | { |
| 8a2058b5 AM |
9727 | struct elf_dyn_relocs *p, **pp; |
| 9728 | ||
| 57e7d118 AM |
9729 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9730 | dynamic pc-relative relocs against symbols which turn out to | |
| 9731 | be defined in regular objects. For the normal shared case, | |
| 9732 | discard space for relocs that have become local due to symbol | |
| 9733 | visibility changes. */ | |
| 9734 | ||
| 9735 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9736 | { |
| 57e7d118 AM |
9737 | /* Relocs that use pc_count are those that appear on a call |
| 9738 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9739 | can be generated via assembly. We want calls to | |
| 9740 | protected symbols to resolve directly to the function | |
| 9741 | rather than going via the plt. If people want function | |
| 9742 | pointer comparisons to work as expected then they should | |
| 9743 | avoid writing weird assembly. */ | |
| 9744 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9745 | { | |
| 57e7d118 AM |
9746 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9747 | { | |
| 9748 | p->count -= p->pc_count; | |
| 9749 | p->pc_count = 0; | |
| 9750 | if (p->count == 0) | |
| 9751 | *pp = p->next; | |
| 9752 | else | |
| 9753 | pp = &p->next; | |
| 9754 | } | |
| 9755 | } | |
| 65f38f15 | 9756 | |
| 954b63d4 | 9757 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 9758 | { |
| 46434633 AM |
9759 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9760 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9761 | return FALSE; |
| 5bd4f169 | 9762 | } |
| 65f38f15 | 9763 | } |
| 529fe20e | 9764 | else if (ELIMINATE_COPY_RELOCS && h->type != STT_GNU_IFUNC) |
| 57e7d118 | 9765 | { |
| 8a2058b5 | 9766 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9767 | symbols which turn out to need copy relocs or are not |
| 9768 | dynamic. */ | |
| 529fe20e AM |
9769 | if (h->dynamic_adjusted |
| 9770 | && !h->def_regular | |
| 9771 | && !ELF_COMMON_DEF_P (h)) | |
| f0158f44 | 9772 | { |
| 46434633 AM |
9773 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9774 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9775 | return FALSE; |
| dfbb6ac9 | 9776 | |
| f0158f44 AM |
9777 | if (h->dynindx == -1) |
| 9778 | eh->dyn_relocs = NULL; | |
| 9779 | } | |
| 9780 | else | |
| 8a2058b5 | 9781 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9782 | } |
| 9783 | ||
| 9784 | /* Finally, allocate space. */ | |
| 9785 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9786 | { | |
| 9787 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9788 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9789 | sreloc = htab->elf.irelplt; | |
| 9790 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9791 | } |
| 65f38f15 | 9792 | } |
| 57e7d118 AM |
9793 | |
| 9794 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9795 | && h->dynindx != -1) |
| 57e7d118 | 9796 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9797 | { |
| 57e7d118 AM |
9798 | struct plt_entry *pent; |
| 9799 | bfd_boolean doneone = FALSE; | |
| 9800 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9801 | if (pent->plt.refcount > 0) | |
| 9802 | { | |
| 9803 | if (!htab->elf.dynamic_sections_created | |
| 9804 | || h->dynindx == -1) | |
| 9805 | { | |
| 9806 | s = htab->elf.iplt; | |
| 9807 | pent->plt.offset = s->size; | |
| 9808 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9809 | s = htab->elf.irelplt; | |
| 9810 | } | |
| 9811 | else | |
| 9812 | { | |
| 9813 | /* If this is the first .plt entry, make room for the special | |
| 9814 | first entry. */ | |
| 9815 | s = htab->elf.splt; | |
| 9816 | if (s->size == 0) | |
| 9817 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9818 | |
| 57e7d118 | 9819 | pent->plt.offset = s->size; |
| 65f38f15 | 9820 | |
| 57e7d118 AM |
9821 | /* Make room for this entry. */ |
| 9822 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9823 | |
| 57e7d118 AM |
9824 | /* Make room for the .glink code. */ |
| 9825 | s = htab->glink; | |
| 9826 | if (s->size == 0) | |
| 9e390558 | 9827 | s->size += GLINK_PLTRESOLVE_SIZE (htab); |
| 57e7d118 AM |
9828 | if (htab->opd_abi) |
| 9829 | { | |
| 9830 | /* We need bigger stubs past index 32767. */ | |
| 9e390558 | 9831 | if (s->size >= GLINK_PLTRESOLVE_SIZE (htab) + 32768*2*4) |
| 57e7d118 AM |
9832 | s->size += 4; |
| 9833 | s->size += 2*4; | |
| 9834 | } | |
| 9835 | else | |
| 9836 | s->size += 4; | |
| 65f38f15 | 9837 | |
| 57e7d118 AM |
9838 | /* We also need to make an entry in the .rela.plt section. */ |
| 9839 | s = htab->elf.srelplt; | |
| 9840 | } | |
| 9841 | s->size += sizeof (Elf64_External_Rela); | |
| 9842 | doneone = TRUE; | |
| 9843 | } | |
| 9844 | else | |
| 9845 | pent->plt.offset = (bfd_vma) -1; | |
| 9846 | if (!doneone) | |
| 9847 | { | |
| 9848 | h->plt.plist = NULL; | |
| 9849 | h->needs_plt = 0; | |
| 9850 | } | |
| 65f38f15 | 9851 | } |
| 57e7d118 | 9852 | else |
| 65f38f15 | 9853 | { |
| 57e7d118 AM |
9854 | h->plt.plist = NULL; |
| 9855 | h->needs_plt = 0; | |
| 65f38f15 AM |
9856 | } |
| 9857 | ||
| b34976b6 | 9858 | return TRUE; |
| 65f38f15 AM |
9859 | } |
| 9860 | ||
| 9e390558 AM |
9861 | #define PPC_LO(v) ((v) & 0xffff) |
| 9862 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 9863 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 9864 | ||
| a345bc8d AM |
9865 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9866 | to set up space for global entry stubs. These are put in glink, | |
| 9867 | after the branch table. */ | |
| 65f38f15 | 9868 | |
| b34976b6 | 9869 | static bfd_boolean |
| a345bc8d | 9870 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9871 | { |
| a345bc8d AM |
9872 | struct bfd_link_info *info; |
| 9873 | struct ppc_link_hash_table *htab; | |
| 9874 | struct plt_entry *pent; | |
| 9e390558 | 9875 | asection *s, *plt; |
| 65f38f15 | 9876 | |
| a345bc8d AM |
9877 | if (h->root.type == bfd_link_hash_indirect) |
| 9878 | return TRUE; | |
| 65f38f15 | 9879 | |
| a345bc8d AM |
9880 | if (!h->pointer_equality_needed) |
| 9881 | return TRUE; | |
| 65f38f15 | 9882 | |
| a345bc8d AM |
9883 | if (h->def_regular) |
| 9884 | return TRUE; | |
| 65f38f15 | 9885 | |
| a345bc8d AM |
9886 | info = inf; |
| 9887 | htab = ppc_hash_table (info); | |
| 9888 | if (htab == NULL) | |
| 9889 | return FALSE; | |
| 9890 | ||
| 9e390558 AM |
9891 | s = htab->global_entry; |
| 9892 | plt = htab->elf.splt; | |
| a345bc8d AM |
9893 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 9894 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9895 | && pent->addend == 0) | |
| 9896 | { | |
| afe397ea AM |
9897 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9898 | and we are not generating a shared library or pie, then we | |
| 9899 | need to define the symbol in the executable on a call stub. | |
| 9900 | This is to avoid text relocations. */ | |
| 9e390558 AM |
9901 | bfd_vma off, stub_align, stub_off, stub_size; |
| 9902 | unsigned int align_power; | |
| 9903 | ||
| 9904 | stub_size = 16; | |
| 9905 | stub_off = s->size; | |
| 9906 | if (htab->params->plt_stub_align >= 0) | |
| 9907 | align_power = htab->params->plt_stub_align; | |
| 9908 | else | |
| 9909 | align_power = -htab->params->plt_stub_align; | |
| 9910 | /* Setting section alignment is delayed until we know it is | |
| 9911 | non-empty. Otherwise the .text output section will be | |
| 9912 | aligned at least to plt_stub_align even when no global | |
| 9913 | entry stubs are needed. */ | |
| 9914 | if (s->alignment_power < align_power) | |
| 9915 | s->alignment_power = align_power; | |
| 9916 | stub_align = (bfd_vma) 1 << align_power; | |
| 9917 | if (htab->params->plt_stub_align >= 0 | |
| 9918 | || ((((stub_off + stub_size - 1) & -stub_align) | |
| 9919 | - (stub_off & -stub_align)) | |
| 9920 | > ((stub_size - 1) & -stub_align))) | |
| 9921 | stub_off = (stub_off + stub_align - 1) & -stub_align; | |
| 9922 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; | |
| 9923 | off -= stub_off + s->output_offset + s->output_section->vma; | |
| 9924 | /* Note that for --plt-stub-align negative we have a possible | |
| 9925 | dependency between stub offset and size. Break that | |
| 9926 | dependency by assuming the max stub size when calculating | |
| 9927 | the stub offset. */ | |
| 9928 | if (PPC_HA (off) == 0) | |
| 9929 | stub_size -= 4; | |
| 8a2058b5 | 9930 | h->root.type = bfd_link_hash_defined; |
| afe397ea | 9931 | h->root.u.def.section = s; |
| 9e390558 AM |
9932 | h->root.u.def.value = stub_off; |
| 9933 | s->size = stub_off + stub_size; | |
| a345bc8d AM |
9934 | break; |
| 9935 | } | |
| 9936 | return TRUE; | |
| 9937 | } | |
| 9938 | ||
| 9939 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9940 | read-only sections. */ | |
| 9941 | ||
| 9942 | static bfd_boolean | |
| 98bbb1b8 | 9943 | maybe_set_textrel (struct elf_link_hash_entry *h, void *inf) |
| a345bc8d | 9944 | { |
| 98bbb1b8 AM |
9945 | asection *sec; |
| 9946 | ||
| a345bc8d AM |
9947 | if (h->root.type == bfd_link_hash_indirect) |
| 9948 | return TRUE; | |
| 9949 | ||
| 98bbb1b8 AM |
9950 | sec = readonly_dynrelocs (h); |
| 9951 | if (sec != NULL) | |
| a345bc8d | 9952 | { |
| 98bbb1b8 AM |
9953 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| 9954 | ||
| 9955 | info->flags |= DF_TEXTREL; | |
| 9956 | info->callbacks->minfo | |
| c1c8c1ef | 9957 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
| 63c1f59d | 9958 | sec->owner, h->root.root.string, sec); |
| a345bc8d AM |
9959 | |
| 9960 | /* Not an error, just cut short the traversal. */ | |
| 9961 | return FALSE; | |
| 65f38f15 | 9962 | } |
| b34976b6 | 9963 | return TRUE; |
| 65f38f15 AM |
9964 | } |
| 9965 | ||
| 9966 | /* Set the sizes of the dynamic sections. */ | |
| 9967 | ||
| b34976b6 | 9968 | static bfd_boolean |
| ee67d69a | 9969 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9970 | struct bfd_link_info *info) |
| 65f38f15 AM |
9971 | { |
| 9972 | struct ppc_link_hash_table *htab; | |
| 9973 | bfd *dynobj; | |
| 9974 | asection *s; | |
| b34976b6 | 9975 | bfd_boolean relocs; |
| 65f38f15 | 9976 | bfd *ibfd; |
| 7865406b | 9977 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9978 | |
| 9979 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9980 | if (htab == NULL) |
| 9981 | return FALSE; | |
| 9982 | ||
| 65f38f15 AM |
9983 | dynobj = htab->elf.dynobj; |
| 9984 | if (dynobj == NULL) | |
| 9985 | abort (); | |
| 9986 | ||
| 9987 | if (htab->elf.dynamic_sections_created) | |
| 9988 | { | |
| 9989 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9990 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9991 | { |
| 3d4d4302 | 9992 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9993 | if (s == NULL) |
| 9994 | abort (); | |
| eea6121a | 9995 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9996 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9997 | } | |
| 9998 | } | |
| 9999 | ||
| 10000 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 10001 | relocs. */ | |
| c72f2fb2 | 10002 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 10003 | { |
| 411e1bfb AM |
10004 | struct got_entry **lgot_ents; |
| 10005 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
10006 | struct plt_entry **local_plt; |
| 10007 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10008 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10009 | bfd_size_type locsymcount; |
| 10010 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10011 | |
| 0c8d6e5c | 10012 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10013 | continue; |
| 10014 | ||
| 10015 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10016 | { | |
| 19e08130 | 10017 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10018 | |
| 6edfbbad | 10019 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10020 | { |
| ec338859 AM |
10021 | if (!bfd_is_abs_section (p->sec) |
| 10022 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10023 | { | |
| 10024 | /* Input section has been discarded, either because | |
| 10025 | it is a copy of a linkonce section or due to | |
| 10026 | linker script /DISCARD/, so we'll be discarding | |
| 10027 | the relocs too. */ | |
| 10028 | } | |
| 248866a8 | 10029 | else if (p->count != 0) |
| ec338859 | 10030 | { |
| 19e08130 AM |
10031 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10032 | if (p->ifunc) | |
| 33e44f2e | 10033 | srel = htab->elf.irelplt; |
| eea6121a | 10034 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10035 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10036 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10037 | } |
| 65f38f15 AM |
10038 | } |
| 10039 | } | |
| 10040 | ||
| 411e1bfb AM |
10041 | lgot_ents = elf_local_got_ents (ibfd); |
| 10042 | if (!lgot_ents) | |
| 65f38f15 AM |
10043 | continue; |
| 10044 | ||
| 0ffa91dd | 10045 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10046 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10047 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10048 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10049 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10050 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10051 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10052 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10053 | { |
| 0b8bcf0d | 10054 | struct got_entry **pent, *ent; |
| 411e1bfb | 10055 | |
| 0b8bcf0d AM |
10056 | pent = lgot_ents; |
| 10057 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10058 | if (ent->got.refcount > 0) |
| 10059 | { | |
| e7b938ca | 10060 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10061 | { |
| 927be08e | 10062 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10063 | *pent = ent->next; |
| 411e1bfb AM |
10064 | } |
| 10065 | else | |
| 10066 | { | |
| 19e08130 AM |
10067 | unsigned int ent_size = 8; |
| 10068 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10069 | ||
| eea6121a | 10070 | ent->got.offset = s->size; |
| e7b938ca | 10071 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10072 | { |
| 19e08130 AM |
10073 | ent_size *= 2; |
| 10074 | rel_size *= 2; | |
| 10075 | } | |
| 10076 | s->size += ent_size; | |
| 10077 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10078 | { | |
| 33e44f2e | 10079 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10080 | htab->got_reli_size += rel_size; |
| 10081 | } | |
| f15d0b54 AM |
10082 | else if (bfd_link_pic (info) |
| 10083 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 10084 | && bfd_link_executable (info))) | |
| 19e08130 AM |
10085 | { |
| 10086 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10087 | srel->size += rel_size; | |
| 927be08e | 10088 | } |
| 0b8bcf0d | 10089 | pent = &ent->next; |
| 411e1bfb AM |
10090 | } |
| 10091 | } | |
| 10092 | else | |
| 0b8bcf0d | 10093 | *pent = ent->next; |
| 65f38f15 | 10094 | } |
| e054468f AM |
10095 | |
| 10096 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10097 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10098 | { | |
| 10099 | struct plt_entry *ent; | |
| 10100 | ||
| 10101 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10102 | if (ent->plt.refcount > 0) | |
| 10103 | { | |
| 33e44f2e | 10104 | s = htab->elf.iplt; |
| e054468f | 10105 | ent->plt.offset = s->size; |
| b9e5796b | 10106 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10107 | |
| 33e44f2e | 10108 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10109 | } |
| 10110 | else | |
| 10111 | ent->plt.offset = (bfd_vma) -1; | |
| 10112 | } | |
| 65f38f15 AM |
10113 | } |
| 10114 | ||
| 10115 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10116 | sym dynamic relocs. */ | |
| 4ce794b7 | 10117 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d | 10118 | |
| 0e1862bb | 10119 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10120 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10121 | |
| 7865406b | 10122 | first_tlsld = NULL; |
| c72f2fb2 | 10123 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10124 | { |
| 7865406b AM |
10125 | struct got_entry *ent; |
| 10126 | ||
| 0c8d6e5c | 10127 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10128 | continue; |
| 10129 | ||
| 7865406b AM |
10130 | ent = ppc64_tlsld_got (ibfd); |
| 10131 | if (ent->got.refcount > 0) | |
| 102890f0 | 10132 | { |
| 7865406b | 10133 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10134 | { |
| 7865406b AM |
10135 | ent->is_indirect = TRUE; |
| 10136 | ent->got.ent = first_tlsld; | |
| 10137 | } | |
| 10138 | else | |
| 10139 | { | |
| 10140 | if (first_tlsld == NULL) | |
| 10141 | first_tlsld = ent; | |
| 10142 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10143 | ent->got.offset = s->size; | |
| 10144 | ent->owner = ibfd; | |
| 10145 | s->size += 16; | |
| 0e1862bb | 10146 | if (bfd_link_pic (info)) |
| 7865406b AM |
10147 | { |
| 10148 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10149 | srel->size += sizeof (Elf64_External_Rela); | |
| 10150 | } | |
| 102890f0 AM |
10151 | } |
| 10152 | } | |
| 10153 | else | |
| 7865406b | 10154 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10155 | } |
| 10156 | ||
| 65f38f15 AM |
10157 | /* We now have determined the sizes of the various dynamic sections. |
| 10158 | Allocate memory for them. */ | |
| b34976b6 | 10159 | relocs = FALSE; |
| 65f38f15 AM |
10160 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10161 | { | |
| 10162 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10163 | continue; | |
| 10164 | ||
| 4ce794b7 | 10165 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10166 | /* These haven't been allocated yet; don't strip. */ |
| 10167 | continue; | |
| 33e44f2e AM |
10168 | else if (s == htab->elf.sgot |
| 10169 | || s == htab->elf.splt | |
| 10170 | || s == htab->elf.iplt | |
| c456f082 | 10171 | || s == htab->glink |
| 9e390558 | 10172 | || s == htab->global_entry |
| 5474d94f AM |
10173 | || s == htab->elf.sdynbss |
| 10174 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10175 | { |
| 10176 | /* Strip this section if we don't need it; see the | |
| 10177 | comment below. */ | |
| 5bd4f169 | 10178 | } |
| 58d180e8 AM |
10179 | else if (s == htab->glink_eh_frame) |
| 10180 | { | |
| 10181 | if (!bfd_is_abs_section (s->output_section)) | |
| 10182 | /* Not sized yet. */ | |
| 10183 | continue; | |
| 10184 | } | |
| 70cc837d | 10185 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10186 | { |
| c456f082 | 10187 | if (s->size != 0) |
| 5bd4f169 | 10188 | { |
| 33e44f2e | 10189 | if (s != htab->elf.srelplt) |
| b34976b6 | 10190 | relocs = TRUE; |
| 5bd4f169 AM |
10191 | |
| 10192 | /* We use the reloc_count field as a counter if we need | |
| 10193 | to copy relocs into the output file. */ | |
| 10194 | s->reloc_count = 0; | |
| 10195 | } | |
| 10196 | } | |
| 65f38f15 | 10197 | else |
| 5bd4f169 AM |
10198 | { |
| 10199 | /* It's not one of our sections, so don't allocate space. */ | |
| 10200 | continue; | |
| 10201 | } | |
| 10202 | ||
| eea6121a | 10203 | if (s->size == 0) |
| 5bd4f169 | 10204 | { |
| c456f082 AM |
10205 | /* If we don't need this section, strip it from the |
| 10206 | output file. This is mostly to handle .rela.bss and | |
| 10207 | .rela.plt. We must create both sections in | |
| 10208 | create_dynamic_sections, because they must be created | |
| 10209 | before the linker maps input sections to output | |
| 10210 | sections. The linker does that before | |
| 10211 | adjust_dynamic_symbol is called, and it is that | |
| 10212 | function which decides whether anything needs to go | |
| 10213 | into these sections. */ | |
| 8423293d | 10214 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10215 | continue; |
| 10216 | } | |
| 10217 | ||
| 06bcf541 AM |
10218 | if (bfd_is_abs_section (s->output_section)) |
| 10219 | _bfd_error_handler (_("warning: discarding dynamic section %s"), | |
| 10220 | s->name); | |
| 10221 | ||
| c456f082 | 10222 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10223 | continue; |
| 10224 | ||
| 65f38f15 AM |
10225 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10226 | here in case unused entries are not reclaimed before the | |
| 10227 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10228 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10229 | sections instead of garbage. | |
| 10230 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10231 | the GOT and .dynrelro. */ |
| eea6121a | 10232 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10233 | if (s->contents == NULL) |
| b34976b6 | 10234 | return FALSE; |
| 5bd4f169 AM |
10235 | } |
| 10236 | ||
| c72f2fb2 | 10237 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10238 | { |
| 0c8d6e5c | 10239 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10240 | continue; |
| 10241 | ||
| e717da7e | 10242 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10243 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10244 | { |
| eea6121a | 10245 | if (s->size == 0) |
| 8423293d | 10246 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10247 | else |
| 10248 | { | |
| eea6121a | 10249 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10250 | if (s->contents == NULL) |
| 10251 | return FALSE; | |
| 10252 | } | |
| 10253 | } | |
| 10254 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10255 | if (s != NULL) | |
| 10256 | { | |
| eea6121a | 10257 | if (s->size == 0) |
| 8423293d | 10258 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10259 | else |
| 10260 | { | |
| eea6121a | 10261 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10262 | if (s->contents == NULL) |
| 10263 | return FALSE; | |
| 10264 | relocs = TRUE; | |
| 10265 | s->reloc_count = 0; | |
| 10266 | } | |
| 10267 | } | |
| 10268 | } | |
| 10269 | ||
| e86ce104 | 10270 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10271 | { |
| e8910a83 AM |
10272 | bfd_boolean tls_opt; |
| 10273 | ||
| 5bd4f169 AM |
10274 | /* Add some entries to the .dynamic section. We fill in the |
| 10275 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10276 | must add the entries now so that we get the correct size for | |
| 10277 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10278 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10279 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10280 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10281 | |
| 0e1862bb | 10282 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10283 | { |
| dc810e39 | 10284 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10285 | return FALSE; |
| 5bd4f169 AM |
10286 | } |
| 10287 | ||
| 33e44f2e | 10288 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10289 | { |
| dc810e39 AM |
10290 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10291 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10292 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10293 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10294 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10295 | return FALSE; |
| 5bd4f169 AM |
10296 | } |
| 10297 | ||
| ee67d69a | 10298 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10299 | { |
| 10300 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10301 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10302 | return FALSE; |
| 19397422 AM |
10303 | } |
| 10304 | ||
| 7c9cf415 | 10305 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10306 | && htab->tls_get_addr_fd != NULL |
| 10307 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10308 | if (tls_opt || !htab->opd_abi) | |
| 10309 | { | |
| 10310 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10311 | return FALSE; | |
| 10312 | } | |
| a7f2871e | 10313 | |
| 5bd4f169 AM |
10314 | if (relocs) |
| 10315 | { | |
| dc810e39 AM |
10316 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10317 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10318 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10319 | return FALSE; |
| 5bd4f169 | 10320 | |
| 65f38f15 AM |
10321 | /* If any dynamic relocs apply to a read-only section, |
| 10322 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10323 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10324 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10325 | |
| 65f38f15 | 10326 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10327 | { |
| 65f38f15 | 10328 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10329 | return FALSE; |
| 5bd4f169 | 10330 | } |
| 5bd4f169 | 10331 | } |
| 5bd4f169 | 10332 | } |
| 65f38f15 | 10333 | #undef add_dynamic_entry |
| 5bd4f169 | 10334 | |
| b34976b6 | 10335 | return TRUE; |
| 5bd4f169 AM |
10336 | } |
| 10337 | ||
| a345bc8d AM |
10338 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10339 | ||
| 10340 | static bfd_boolean | |
| 10341 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10342 | { | |
| 10343 | if (h->plt.plist != NULL | |
| 10344 | && !h->def_regular | |
| 10345 | && !h->pointer_equality_needed) | |
| 10346 | return FALSE; | |
| 10347 | ||
| 10348 | return _bfd_elf_hash_symbol (h); | |
| 10349 | } | |
| 10350 | ||
| 721956f4 | 10351 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10352 | |
| 4ce794b7 AM |
10353 | static inline enum ppc_stub_type |
| 10354 | ppc_type_of_stub (asection *input_sec, | |
| 10355 | const Elf_Internal_Rela *rel, | |
| 10356 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10357 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10358 | bfd_vma destination, |
| 10359 | unsigned long local_off) | |
| 5bd4f169 | 10360 | { |
| 721956f4 AM |
10361 | struct ppc_link_hash_entry *h = *hash; |
| 10362 | bfd_vma location; | |
| 10363 | bfd_vma branch_offset; | |
| 10364 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10365 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10366 | |
| 721956f4 AM |
10367 | if (h != NULL) |
| 10368 | { | |
| e054468f | 10369 | struct plt_entry *ent; |
| 7fe2b9a6 | 10370 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10371 | if (h->oh != NULL |
| 10372 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10373 | { |
| 10374 | fdh = ppc_follow_link (h->oh); | |
| 10375 | *hash = fdh; | |
| 10376 | } | |
| 8387904d | 10377 | |
| e054468f AM |
10378 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10379 | if (ent->addend == rel->r_addend | |
| 10380 | && ent->plt.offset != (bfd_vma) -1) | |
| 10381 | { | |
| e054468f AM |
10382 | *plt_ent = ent; |
| 10383 | return ppc_stub_plt_call; | |
| 10384 | } | |
| 5bd4f169 | 10385 | |
| 7fe2b9a6 AM |
10386 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10387 | either a defined function descriptor or a defined entry symbol | |
| 10388 | in a regular object file, then it is pointless trying to make | |
| 10389 | any other type of stub. */ | |
| 854b41e7 AM |
10390 | if (!is_static_defined (&fdh->elf) |
| 10391 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10392 | return ppc_stub_none; |
| 5d1634d7 | 10393 | } |
| e054468f AM |
10394 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10395 | { | |
| 10396 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10397 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10398 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10399 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10400 | ||
| 10401 | if (local_plt[r_symndx] != NULL) | |
| 10402 | { | |
| 10403 | struct plt_entry *ent; | |
| 10404 | ||
| 10405 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10406 | if (ent->addend == rel->r_addend | |
| 10407 | && ent->plt.offset != (bfd_vma) -1) | |
| 10408 | { | |
| 10409 | *plt_ent = ent; | |
| 10410 | return ppc_stub_plt_call; | |
| 10411 | } | |
| 10412 | } | |
| 10413 | } | |
| 5d1634d7 | 10414 | |
| 721956f4 AM |
10415 | /* Determine where the call point is. */ |
| 10416 | location = (input_sec->output_offset | |
| 10417 | + input_sec->output_section->vma | |
| 10418 | + rel->r_offset); | |
| 5d1634d7 | 10419 | |
| 721956f4 AM |
10420 | branch_offset = destination - location; |
| 10421 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10422 | |
| 721956f4 AM |
10423 | /* Determine if a long branch stub is needed. */ |
| 10424 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10425 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10426 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10427 | |
| 6911b7dc | 10428 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10429 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10430 | is needed later. */ | |
| 10431 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10432 | |
| 721956f4 | 10433 | return ppc_stub_none; |
| 5d1634d7 AM |
10434 | } |
| 10435 | ||
| 794e51c0 AM |
10436 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10437 | to update a plt entry in one thread and have another thread see a | |
| 10438 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10439 | barrier in the call stub. One solution is to make the load of the | |
| 10440 | toc word seem to appear to depend on the load of the function entry | |
| 10441 | word. Another solution is to test for r2 being zero, and branch to | |
| 10442 | the appropriate glink entry if so. | |
| 10443 | ||
| 10444 | . fake dep barrier compare | |
| 71a39c98 AM |
10445 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10446 | . mtctr 12 mtctr 12 | |
| 10447 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10448 | . add 2,2,11 cmpldi 2,0 |
| 10449 | . ld 2,xxx+8(2) bnectr+ | |
| 10450 | . bctr b <glink_entry> | |
| 10451 | ||
| 10452 | The solution involving the compare turns out to be faster, so | |
| 10453 | that's what we use unless the branch won't reach. */ | |
| 10454 | ||
| 10455 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10456 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10457 | |
| 794e51c0 AM |
10458 | static inline unsigned int |
| 10459 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10460 | struct ppc_stub_hash_entry *stub_entry, | |
| 10461 | bfd_vma off) | |
| 10462 | { | |
| b9e5796b AM |
10463 | unsigned size = 12; |
| 10464 | ||
| 10465 | if (ALWAYS_EMIT_R2SAVE | |
| 10466 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10467 | size += 4; | |
| 10468 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10469 | size += 4; |
| b9e5796b AM |
10470 | if (htab->opd_abi) |
| 10471 | { | |
| 10472 | size += 4; | |
| e7d1c40c | 10473 | if (htab->params->plt_static_chain) |
| b9e5796b | 10474 | size += 4; |
| bd4d2eaa AM |
10475 | if (htab->params->plt_thread_safe |
| 10476 | && htab->elf.dynamic_sections_created | |
| 10477 | && stub_entry->h != NULL | |
| 10478 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10479 | size += 8; |
| e7d1c40c | 10480 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10481 | size += 4; |
| 10482 | } | |
| 794e51c0 AM |
10483 | if (stub_entry->h != NULL |
| 10484 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10485 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10486 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10487 | { |
| 10488 | size += 7 * 4; | |
| 10489 | if (ALWAYS_EMIT_R2SAVE | |
| 10490 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 407aa07c | 10491 | size += 6 * 4; |
| f378ab09 | 10492 | } |
| 794e51c0 AM |
10493 | return size; |
| 10494 | } | |
| 10495 | ||
| 2420fff6 AM |
10496 | /* Depending on the sign of plt_stub_align: |
| 10497 | If positive, return the padding to align to a 2**plt_stub_align | |
| 10498 | boundary. | |
| 10499 | If negative, if this stub would cross fewer 2**plt_stub_align | |
| 10500 | boundaries if we align, then return the padding needed to do so. */ | |
| 10501 | ||
| 794e51c0 AM |
10502 | static inline unsigned int |
| 10503 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10504 | struct ppc_stub_hash_entry *stub_entry, | |
| 10505 | bfd_vma plt_off) | |
| 10506 | { | |
| 2420fff6 | 10507 | int stub_align; |
| 794e51c0 | 10508 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10509 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 | 10510 | |
| 2420fff6 AM |
10511 | if (htab->params->plt_stub_align >= 0) |
| 10512 | { | |
| 10513 | stub_align = 1 << htab->params->plt_stub_align; | |
| 10514 | if ((stub_off & (stub_align - 1)) != 0) | |
| 10515 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10516 | return 0; | |
| 10517 | } | |
| 10518 | ||
| 10519 | stub_align = 1 << -htab->params->plt_stub_align; | |
| 794e51c0 | 10520 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) |
| e05fa0ba | 10521 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10522 | return stub_align - (stub_off & (stub_align - 1)); |
| 10523 | return 0; | |
| 10524 | } | |
| 10525 | ||
| 10526 | /* Build a .plt call stub. */ | |
| 10527 | ||
| 10528 | static inline bfd_byte * | |
| 10529 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10530 | struct ppc_stub_hash_entry *stub_entry, | |
| 10531 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10532 | { | |
| e7d1c40c | 10533 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10534 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10535 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10536 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10537 | && htab->elf.dynamic_sections_created | |
| 10538 | && stub_entry->h != NULL | |
| 10539 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10540 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10541 | bfd_vma cmp_branch_off = 0; | |
| 10542 | ||
| 10543 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10544 | && plt_load_toc |
| 794e51c0 | 10545 | && plt_thread_safe |
| bd4d2eaa AM |
10546 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10547 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10548 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10549 | { |
| 10550 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10551 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10552 | / PLT_ENTRY_SIZE (htab)); | |
| 9e390558 | 10553 | bfd_vma glinkoff = GLINK_PLTRESOLVE_SIZE (htab) + pltindex * 8; |
| 794e51c0 AM |
10554 | bfd_vma to, from; |
| 10555 | ||
| 68d62958 AM |
10556 | if (pltindex > 32768) |
| 10557 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10558 | to = (glinkoff |
| 10559 | + htab->glink->output_offset | |
| 10560 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10561 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10562 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10563 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10564 | + 4 * (PPC_HA (offset) != 0) | |
| 10565 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10566 | != PPC_HA (offset)) | |
| 10567 | + 4 * (plt_static_chain != 0) | |
| 10568 | + 20 | |
| 6f20ed8a AM |
10569 | + stub_entry->group->stub_sec->output_offset |
| 10570 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10571 | cmp_branch_off = to - from; |
| 10572 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10573 | } | |
| 10574 | ||
| ac2df442 AM |
10575 | if (PPC_HA (offset) != 0) |
| 10576 | { | |
| 176a0d42 AM |
10577 | if (r != NULL) |
| 10578 | { | |
| 794e51c0 AM |
10579 | if (ALWAYS_EMIT_R2SAVE |
| 10580 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10581 | r[0].r_offset += 4; | |
| 176a0d42 | 10582 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10583 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10584 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10585 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10586 | if (plt_load_toc) |
| 176a0d42 | 10587 | { |
| b9e5796b | 10588 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10589 | { |
| b9e5796b AM |
10590 | r[2].r_offset = r[1].r_offset + 4; |
| 10591 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10592 | r[2].r_addend = r[0].r_addend; | |
| 10593 | } | |
| 10594 | else | |
| 10595 | { | |
| 10596 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10597 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10598 | r[2].r_addend = r[0].r_addend + 8; | |
| 10599 | if (plt_static_chain) | |
| 10600 | { | |
| 10601 | r[3].r_offset = r[2].r_offset + 4; | |
| 10602 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10603 | r[3].r_addend = r[0].r_addend + 16; | |
| 10604 | } | |
| c7131b65 | 10605 | } |
| 176a0d42 AM |
10606 | } |
| 10607 | } | |
| 794e51c0 AM |
10608 | if (ALWAYS_EMIT_R2SAVE |
| 10609 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10610 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10611 | if (plt_load_toc) |
| 10612 | { | |
| 10613 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10614 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10615 | } | |
| 10616 | else | |
| 10617 | { | |
| 10618 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10619 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10620 | } | |
| b9e5796b AM |
10621 | if (plt_load_toc |
| 10622 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10623 | { |
| 71a39c98 | 10624 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10625 | offset = 0; |
| 10626 | } | |
| 71a39c98 | 10627 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10628 | if (plt_load_toc) |
| 794e51c0 | 10629 | { |
| b9e5796b AM |
10630 | if (use_fake_dep) |
| 10631 | { | |
| 10632 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10633 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10634 | } | |
| 10635 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10636 | if (plt_static_chain) | |
| 10637 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10638 | } |
| ac2df442 AM |
10639 | } |
| 10640 | else | |
| 10641 | { | |
| 176a0d42 AM |
10642 | if (r != NULL) |
| 10643 | { | |
| 794e51c0 AM |
10644 | if (ALWAYS_EMIT_R2SAVE |
| 10645 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10646 | r[0].r_offset += 4; | |
| 176a0d42 | 10647 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10648 | if (plt_load_toc) |
| 176a0d42 | 10649 | { |
| b9e5796b | 10650 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10651 | { |
| b9e5796b AM |
10652 | r[1].r_offset = r[0].r_offset + 4; |
| 10653 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10654 | r[1].r_addend = r[0].r_addend; | |
| 10655 | } | |
| 10656 | else | |
| 10657 | { | |
| 10658 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10659 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10660 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10661 | if (plt_static_chain) | |
| 10662 | { | |
| 10663 | r[2].r_offset = r[1].r_offset + 4; | |
| 10664 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10665 | r[2].r_addend = r[0].r_addend + 8; | |
| 10666 | } | |
| c7131b65 | 10667 | } |
| 176a0d42 AM |
10668 | } |
| 10669 | } | |
| 794e51c0 AM |
10670 | if (ALWAYS_EMIT_R2SAVE |
| 10671 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10672 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10673 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10674 | if (plt_load_toc |
| 10675 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10676 | { |
| 10677 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10678 | offset = 0; | |
| 10679 | } | |
| 71a39c98 | 10680 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10681 | if (plt_load_toc) |
| 794e51c0 | 10682 | { |
| b9e5796b AM |
10683 | if (use_fake_dep) |
| 10684 | { | |
| 10685 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10686 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10687 | } | |
| 10688 | if (plt_static_chain) | |
| 10689 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10690 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10691 | } |
| ac2df442 | 10692 | } |
| b9e5796b | 10693 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10694 | { |
| 10695 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10696 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10697 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10698 | } |
| 10699 | else | |
| 407aa07c | 10700 | bfd_put_32 (obfd, BCTR, p), p += 4; |
| 5d1634d7 AM |
10701 | return p; |
| 10702 | } | |
| 10703 | ||
| a7f2871e AM |
10704 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10705 | ||
| 10706 | #define LD_R11_0R3 0xe9630000 | |
| 10707 | #define LD_R12_0R3 0xe9830000 | |
| 10708 | #define MR_R0_R3 0x7c601b78 | |
| 10709 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10710 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10711 | #define BEQLR 0x4d820020 | |
| 10712 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10713 | #define STD_R11_0R1 0xf9610000 |
| 10714 | #define BCTRL 0x4e800421 | |
| 10715 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10716 | #define MTLR_R11 0x7d6803a6 |
| 10717 | ||
| 10718 | static inline bfd_byte * | |
| 794e51c0 AM |
10719 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10720 | struct ppc_stub_hash_entry *stub_entry, | |
| 10721 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10722 | { |
| e7d1c40c | 10723 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10724 | |
| a7f2871e AM |
10725 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10726 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10727 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10728 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10729 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10730 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10731 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
10732 | if (r != NULL) |
| 10733 | r[0].r_offset += 7 * 4; | |
| 10734 | if (!ALWAYS_EMIT_R2SAVE | |
| 10735 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 10736 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 10737 | ||
| a7f2871e | 10738 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 10739 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10740 | |
| 10741 | if (r != NULL) | |
| f378ab09 | 10742 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 10743 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| 407aa07c | 10744 | bfd_put_32 (obfd, BCTRL, p - 4); |
| a7f2871e | 10745 | |
| a078d95a | 10746 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10747 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10748 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10749 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10750 | ||
| 10751 | return p; | |
| 10752 | } | |
| 10753 | ||
| 176a0d42 AM |
10754 | static Elf_Internal_Rela * |
| 10755 | get_relocs (asection *sec, int count) | |
| 10756 | { | |
| 10757 | Elf_Internal_Rela *relocs; | |
| 10758 | struct bfd_elf_section_data *elfsec_data; | |
| 10759 | ||
| 10760 | elfsec_data = elf_section_data (sec); | |
| 10761 | relocs = elfsec_data->relocs; | |
| 10762 | if (relocs == NULL) | |
| 10763 | { | |
| 10764 | bfd_size_type relsize; | |
| 10765 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10766 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10767 | if (relocs == NULL) | |
| 10768 | return NULL; | |
| 10769 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10770 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10771 | sizeof (Elf_Internal_Shdr)); | |
| 10772 | if (elfsec_data->rela.hdr == NULL) | |
| 10773 | return NULL; | |
| 10774 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10775 | * sizeof (Elf64_External_Rela)); | |
| 10776 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10777 | sec->reloc_count = 0; |
| 10778 | } | |
| 10779 | relocs += sec->reloc_count; | |
| 10780 | sec->reloc_count += count; | |
| 10781 | return relocs; | |
| 10782 | } | |
| 10783 | ||
| aa374f67 | 10784 | static bfd_vma |
| 25f53a85 | 10785 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10786 | struct ppc_stub_hash_entry *stub_entry) |
| 10787 | { | |
| 25f53a85 | 10788 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10789 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10790 | |
| 10791 | if (r2off == 0) | |
| 10792 | { | |
| 10793 | /* Support linking -R objects. Get the toc pointer from the | |
| 10794 | opd entry. */ | |
| 10795 | char buf[8]; | |
| b9e5796b AM |
10796 | if (!htab->opd_abi) |
| 10797 | return r2off; | |
| aa374f67 AM |
10798 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10799 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10800 | ||
| 10801 | if (strcmp (opd->name, ".opd") != 0 | |
| 10802 | || opd->reloc_count != 0) | |
| 10803 | { | |
| c1c8c1ef | 10804 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%pT'\n"), |
| 25f53a85 | 10805 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10806 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10807 | return (bfd_vma) -1; |
| aa374f67 AM |
10808 | } |
| 10809 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10810 | return (bfd_vma) -1; |
| aa374f67 | 10811 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10812 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10813 | } |
| 6f20ed8a | 10814 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10815 | return r2off; |
| 10816 | } | |
| 10817 | ||
| b34976b6 | 10818 | static bfd_boolean |
| 4ce794b7 | 10819 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10820 | { |
| 721956f4 AM |
10821 | struct ppc_stub_hash_entry *stub_entry; |
| 10822 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10823 | struct bfd_link_info *info; |
| 10824 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10825 | bfd_byte *loc; |
| 10826 | bfd_byte *p; | |
| ee75fd95 | 10827 | bfd_vma dest, off; |
| 176a0d42 | 10828 | Elf_Internal_Rela *r; |
| e054468f | 10829 | asection *plt; |
| 5d1634d7 | 10830 | |
| 721956f4 AM |
10831 | /* Massage our args to the form they really have. */ |
| 10832 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10833 | info = in_arg; |
| 5d1634d7 | 10834 | |
| 5d1634d7 | 10835 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10836 | if (htab == NULL) |
| 10837 | return FALSE; | |
| 5d1634d7 | 10838 | |
| 721956f4 | 10839 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10840 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10841 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10842 | |
| 4ce794b7 | 10843 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10844 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10845 | { |
| 721956f4 | 10846 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10847 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10848 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10849 | dest = (stub_entry->target_value |
| 10850 | + stub_entry->target_section->output_offset | |
| 10851 | + stub_entry->target_section->output_section->vma); | |
| 10852 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10853 | off = dest; | |
| 5d1634d7 | 10854 | |
| 721956f4 AM |
10855 | /* And this is where we are coming from. */ |
| 10856 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10857 | + stub_entry->group->stub_sec->output_offset |
| 10858 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10859 | |
| 9e390558 | 10860 | p = loc; |
| ac2df442 | 10861 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) |
| ad8e1ba5 | 10862 | { |
| 25f53a85 | 10863 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10864 | |
| a7c49797 | 10865 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10866 | { |
| 10867 | htab->stub_error = TRUE; | |
| 10868 | return FALSE; | |
| 10869 | } | |
| 9e390558 AM |
10870 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 10871 | p += 4; | |
| ac2df442 AM |
10872 | if (PPC_HA (r2off) != 0) |
| 10873 | { | |
| e7d1c40c | 10874 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
10875 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 10876 | p += 4; | |
| a7c49797 AM |
10877 | } |
| 10878 | if (PPC_LO (r2off) != 0) | |
| 10879 | { | |
| 10880 | bfd_put_32 (htab->params->stub_bfd, | |
| 9e390558 AM |
10881 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| 10882 | p += 4; | |
| ac2df442 | 10883 | } |
| 9e390558 | 10884 | off -= p - loc; |
| ad8e1ba5 | 10885 | } |
| 9e390558 AM |
10886 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), p); |
| 10887 | p += 4; | |
| ad8e1ba5 | 10888 | |
| 5c3dead3 AM |
10889 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10890 | { | |
| cf97bcb0 AM |
10891 | _bfd_error_handler |
| 10892 | (_("long branch stub `%s' offset overflow"), | |
| bc30df16 | 10893 | stub_entry->root.string); |
| 5c3dead3 AM |
10894 | htab->stub_error = TRUE; |
| 10895 | return FALSE; | |
| 10896 | } | |
| ee75fd95 AM |
10897 | |
| 10898 | if (info->emitrelocations) | |
| 10899 | { | |
| 6f20ed8a | 10900 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10901 | if (r == NULL) |
| 10902 | return FALSE; | |
| 9e390558 | 10903 | r->r_offset = p - 4 - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10904 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10905 | r->r_addend = dest; | |
| 10906 | if (stub_entry->h != NULL) | |
| 10907 | { | |
| 10908 | struct elf_link_hash_entry **hashes; | |
| 10909 | unsigned long symndx; | |
| 10910 | struct ppc_link_hash_entry *h; | |
| 10911 | ||
| e7d1c40c | 10912 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10913 | if (hashes == NULL) |
| 10914 | { | |
| 10915 | bfd_size_type hsize; | |
| 10916 | ||
| 10917 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10918 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10919 | if (hashes == NULL) |
| 10920 | return FALSE; | |
| e7d1c40c | 10921 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10922 | htab->stub_globals = 1; |
| 10923 | } | |
| 10924 | symndx = htab->stub_globals++; | |
| 10925 | h = stub_entry->h; | |
| 10926 | hashes[symndx] = &h->elf; | |
| 10927 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10928 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10929 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10930 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10931 | /* H is an opd symbol. The addend must be zero. */ | |
| 10932 | r->r_addend = 0; | |
| 10933 | else | |
| 10934 | { | |
| 10935 | off = (h->elf.root.u.def.value | |
| 10936 | + h->elf.root.u.def.section->output_offset | |
| 10937 | + h->elf.root.u.def.section->output_section->vma); | |
| 10938 | r->r_addend -= off; | |
| 10939 | } | |
| 10940 | } | |
| 10941 | } | |
| 721956f4 | 10942 | break; |
| e86ce104 | 10943 | |
| 721956f4 | 10944 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10945 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10946 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10947 | stub_entry->root.string + 9, | |
| b34976b6 | 10948 | FALSE, FALSE); |
| 721956f4 AM |
10949 | if (br_entry == NULL) |
| 10950 | { | |
| cf97bcb0 AM |
10951 | _bfd_error_handler (_("can't find branch stub `%s'"), |
| 10952 | stub_entry->root.string); | |
| b34976b6 AM |
10953 | htab->stub_error = TRUE; |
| 10954 | return FALSE; | |
| 721956f4 AM |
10955 | } |
| 10956 | ||
| 176a0d42 AM |
10957 | dest = (stub_entry->target_value |
| 10958 | + stub_entry->target_section->output_offset | |
| 10959 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10960 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10961 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10962 | |
| 176a0d42 | 10963 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10964 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10965 | |
| f94498ff | 10966 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10967 | { |
| f94498ff | 10968 | br_entry->iter = 0; |
| 84f5d08e | 10969 | |
| f94498ff | 10970 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10971 | { |
| f94498ff AM |
10972 | /* Create a reloc for the branch lookup table entry. */ |
| 10973 | Elf_Internal_Rela rela; | |
| 10974 | bfd_byte *rl; | |
| 10975 | ||
| 10976 | rela.r_offset = (br_entry->offset | |
| 10977 | + htab->brlt->output_offset | |
| 10978 | + htab->brlt->output_section->vma); | |
| 10979 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10980 | rela.r_addend = dest; |
| f94498ff AM |
10981 | |
| 10982 | rl = htab->relbrlt->contents; | |
| 10983 | rl += (htab->relbrlt->reloc_count++ | |
| 10984 | * sizeof (Elf64_External_Rela)); | |
| 10985 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10986 | } | |
| 10987 | else if (info->emitrelocations) | |
| 10988 | { | |
| 176a0d42 AM |
10989 | r = get_relocs (htab->brlt, 1); |
| 10990 | if (r == NULL) | |
| 10991 | return FALSE; | |
| 10992 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10993 | normal reloc processing. Symbols and offsets are not | |
| 10994 | translated from input file to output file form, so | |
| 10995 | set up the offset per the output file. */ | |
| f94498ff AM |
10996 | r->r_offset = (br_entry->offset |
| 10997 | + htab->brlt->output_offset | |
| 10998 | + htab->brlt->output_section->vma); | |
| 10999 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11000 | r->r_addend = dest; |
| 84f5d08e | 11001 | } |
| 84f5d08e | 11002 | } |
| 721956f4 | 11003 | |
| 176a0d42 AM |
11004 | dest = (br_entry->offset |
| 11005 | + htab->brlt->output_offset | |
| 11006 | + htab->brlt->output_section->vma); | |
| 11007 | ||
| 11008 | off = (dest | |
| 06bcf541 | 11009 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11010 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11011 | |
| ad8e1ba5 | 11012 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11013 | { |
| 25f53a85 | 11014 | info->callbacks->einfo |
| c1c8c1ef | 11015 | (_("%P: linkage table error against `%pT'\n"), |
| 721956f4 | 11016 | stub_entry->root.string); |
| 5d1634d7 | 11017 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11018 | htab->stub_error = TRUE; |
| 11019 | return FALSE; | |
| 5d1634d7 | 11020 | } |
| 41bd81ab | 11021 | |
| 176a0d42 AM |
11022 | if (info->emitrelocations) |
| 11023 | { | |
| 6f20ed8a | 11024 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11025 | if (r == NULL) |
| 11026 | return FALSE; | |
| 6f20ed8a | 11027 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11028 | if (bfd_big_endian (info->output_bfd)) |
| 11029 | r[0].r_offset += 2; | |
| 00f412ee | 11030 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11031 | r[0].r_offset += 4; |
| 11032 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11033 | r[0].r_addend = dest; | |
| 11034 | if (PPC_HA (off) != 0) | |
| 11035 | { | |
| 11036 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11037 | r[1].r_offset = r[0].r_offset + 4; | |
| 11038 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11039 | r[1].r_addend = r[0].r_addend; | |
| 11040 | } | |
| 11041 | } | |
| 11042 | ||
| 9e390558 | 11043 | p = loc; |
| 00f412ee | 11044 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11045 | { |
| 176a0d42 | 11046 | if (PPC_HA (off) != 0) |
| ac2df442 | 11047 | { |
| e7d1c40c | 11048 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11049 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11050 | p += 4; | |
| e7d1c40c | 11051 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11052 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11053 | } |
| 11054 | else | |
| 9e390558 AM |
11055 | bfd_put_32 (htab->params->stub_bfd, |
| 11056 | LD_R12_0R2 | PPC_LO (off), p); | |
| ad8e1ba5 AM |
11057 | } |
| 11058 | else | |
| 11059 | { | |
| 25f53a85 | 11060 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11061 | |
| a7c49797 | 11062 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11063 | { |
| 11064 | htab->stub_error = TRUE; | |
| 11065 | return FALSE; | |
| 11066 | } | |
| ad8e1ba5 | 11067 | |
| 9e390558 AM |
11068 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 11069 | p += 4; | |
| 176a0d42 | 11070 | if (PPC_HA (off) != 0) |
| ac2df442 | 11071 | { |
| e7d1c40c | 11072 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11073 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11074 | p += 4; | |
| e7d1c40c | 11075 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11076 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11077 | } |
| 11078 | else | |
| 9e390558 | 11079 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), p); |
| ac2df442 AM |
11080 | |
| 11081 | if (PPC_HA (r2off) != 0) | |
| 11082 | { | |
| 9e390558 | 11083 | p += 4; |
| e7d1c40c | 11084 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11085 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 00f412ee AM |
11086 | } |
| 11087 | if (PPC_LO (r2off) != 0) | |
| 11088 | { | |
| 9e390558 | 11089 | p += 4; |
| e7d1c40c | 11090 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11091 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| ac2df442 | 11092 | } |
| ad8e1ba5 | 11093 | } |
| 9e390558 AM |
11094 | p += 4; |
| 11095 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, p); | |
| 11096 | p += 4; | |
| 407aa07c AM |
11097 | bfd_put_32 (htab->params->stub_bfd, BCTR, p); |
| 11098 | p += 4; | |
| 721956f4 | 11099 | break; |
| 5d1634d7 | 11100 | |
| 721956f4 | 11101 | case ppc_stub_plt_call: |
| 794e51c0 | 11102 | case ppc_stub_plt_call_r2save: |
| e054468f | 11103 | if (stub_entry->h != NULL |
| b31867b6 AM |
11104 | && stub_entry->h->is_func_descriptor |
| 11105 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11106 | { |
| b31867b6 AM |
11107 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11108 | ||
| 11109 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11110 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11111 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11112 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11113 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11114 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11115 | } |
| 11116 | ||
| 721956f4 | 11117 | /* Now build the stub. */ |
| e054468f | 11118 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11119 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11120 | abort (); |
| 11121 | ||
| 33e44f2e | 11122 | plt = htab->elf.splt; |
| 25f23106 AM |
11123 | if (!htab->elf.dynamic_sections_created |
| 11124 | || stub_entry->h == NULL | |
| 11125 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11126 | plt = htab->elf.iplt; |
| e054468f AM |
11127 | |
| 11128 | dest += plt->output_offset + plt->output_section->vma; | |
| 11129 | ||
| 11130 | if (stub_entry->h == NULL | |
| 11131 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11132 | { | |
| 11133 | Elf_Internal_Rela rela; | |
| 11134 | bfd_byte *rl; | |
| 11135 | ||
| 11136 | rela.r_offset = dest; | |
| ee67d69a AM |
11137 | if (htab->opd_abi) |
| 11138 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11139 | else | |
| 11140 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11141 | rela.r_addend = (stub_entry->target_value |
| 11142 | + stub_entry->target_section->output_offset | |
| 11143 | + stub_entry->target_section->output_section->vma); | |
| 11144 | ||
| 33e44f2e AM |
11145 | rl = (htab->elf.irelplt->contents |
| 11146 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11147 | * sizeof (Elf64_External_Rela))); |
| 11148 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f | 11149 | stub_entry->plt_ent->plt.offset |= 1; |
| 82e66161 | 11150 | htab->local_ifunc_resolver = 1; |
| e054468f | 11151 | } |
| 176a0d42 AM |
11152 | |
| 11153 | off = (dest | |
| 06bcf541 | 11154 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11155 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11156 | |
| ad8e1ba5 | 11157 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11158 | { |
| 25f53a85 | 11159 | info->callbacks->einfo |
| 695344c0 | 11160 | /* xgettext:c-format */ |
| c1c8c1ef | 11161 | (_("%P: linkage table error against `%pT'\n"), |
| e054468f AM |
11162 | stub_entry->h != NULL |
| 11163 | ? stub_entry->h->elf.root.root.string | |
| 11164 | : "<local sym>"); | |
| 721956f4 | 11165 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11166 | htab->stub_error = TRUE; |
| 11167 | return FALSE; | |
| 721956f4 AM |
11168 | } |
| 11169 | ||
| e7d1c40c | 11170 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11171 | { |
| 11172 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11173 | ||
| 6f20ed8a AM |
11174 | stub_entry->group->stub_sec->size += pad; |
| 11175 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11176 | loc += pad; |
| 11177 | } | |
| 11178 | ||
| 176a0d42 AM |
11179 | r = NULL; |
| 11180 | if (info->emitrelocations) | |
| 11181 | { | |
| 6f20ed8a | 11182 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11183 | ((PPC_HA (off) != 0) |
| 11184 | + (htab->opd_abi | |
| e7d1c40c | 11185 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11186 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11187 | : 1))); | |
| 176a0d42 AM |
11188 | if (r == NULL) |
| 11189 | return FALSE; | |
| 6f20ed8a | 11190 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11191 | if (bfd_big_endian (info->output_bfd)) |
| 11192 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11193 | r[0].r_addend = dest; |
| 11194 | } | |
| a7f2871e AM |
11195 | if (stub_entry->h != NULL |
| 11196 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11197 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11198 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11199 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11200 | else |
| 794e51c0 | 11201 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11202 | break; |
| 11203 | ||
| a4b6fadd AM |
11204 | case ppc_stub_save_res: |
| 11205 | return TRUE; | |
| 11206 | ||
| 721956f4 AM |
11207 | default: |
| 11208 | BFD_FAIL (); | |
| b34976b6 | 11209 | return FALSE; |
| 721956f4 AM |
11210 | } |
| 11211 | ||
| 9e390558 | 11212 | stub_entry->group->stub_sec->size += p - loc; |
| 97b639ba | 11213 | |
| e7d1c40c | 11214 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11215 | { |
| 11216 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11217 | size_t len1, len2; |
| 11218 | char *name; | |
| 11219 | const char *const stub_str[] = { "long_branch", | |
| 11220 | "long_branch_r2off", | |
| 11221 | "plt_branch", | |
| 11222 | "plt_branch_r2off", | |
| 794e51c0 | 11223 | "plt_call", |
| ee75fd95 AM |
11224 | "plt_call" }; |
| 11225 | ||
| 11226 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11227 | len2 = strlen (stub_entry->root.string); | |
| 11228 | name = bfd_malloc (len1 + len2 + 2); | |
| 11229 | if (name == NULL) | |
| 11230 | return FALSE; | |
| 11231 | memcpy (name, stub_entry->root.string, 9); | |
| 11232 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11233 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11234 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11235 | if (h == NULL) |
| 11236 | return FALSE; | |
| 11237 | if (h->root.type == bfd_link_hash_new) | |
| 11238 | { | |
| 11239 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11240 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11241 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11242 | h->ref_regular = 1; |
| 11243 | h->def_regular = 1; | |
| 11244 | h->ref_regular_nonweak = 1; | |
| 11245 | h->forced_local = 1; | |
| 11246 | h->non_elf = 0; | |
| 2ec55de3 | 11247 | h->root.linker_def = 1; |
| 97b639ba AM |
11248 | } |
| 11249 | } | |
| 11250 | ||
| b34976b6 | 11251 | return TRUE; |
| 721956f4 AM |
11252 | } |
| 11253 | ||
| 11254 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11255 | we know stub section sizes, and select plt_branch stubs where | |
| 11256 | long_branch stubs won't do. */ | |
| 11257 | ||
| b34976b6 | 11258 | static bfd_boolean |
| 4ce794b7 | 11259 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11260 | { |
| 11261 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11262 | struct bfd_link_info *info; |
| 721956f4 AM |
11263 | struct ppc_link_hash_table *htab; |
| 11264 | bfd_vma off; | |
| 11265 | int size; | |
| 11266 | ||
| 11267 | /* Massage our args to the form they really have. */ | |
| 11268 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11269 | info = in_arg; |
| 11270 | ||
| 11271 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11272 | if (htab == NULL) |
| 11273 | return FALSE; | |
| 721956f4 | 11274 | |
| a4b6fadd AM |
11275 | if (stub_entry->h != NULL |
| 11276 | && stub_entry->h->save_res | |
| 11277 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11278 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11279 | { | |
| 11280 | /* Don't make stubs to out-of-line register save/restore | |
| 11281 | functions. Instead, emit copies of the functions. */ | |
| 11282 | stub_entry->group->needs_save_res = 1; | |
| 11283 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11284 | return TRUE; | |
| 11285 | } | |
| 11286 | ||
| 794e51c0 AM |
11287 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11288 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11289 | { |
| e054468f AM |
11290 | asection *plt; |
| 11291 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11292 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11293 | abort (); |
| 33e44f2e | 11294 | plt = htab->elf.splt; |
| 25f23106 AM |
11295 | if (!htab->elf.dynamic_sections_created |
| 11296 | || stub_entry->h == NULL | |
| 11297 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11298 | plt = htab->elf.iplt; |
| e054468f AM |
11299 | off += (plt->output_offset |
| 11300 | + plt->output_section->vma | |
| 06bcf541 | 11301 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11302 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11303 | |
| 794e51c0 | 11304 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11305 | if (stub_entry->h != NULL |
| 11306 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11307 | || stub_entry->h == htab->tls_get_addr) | |
| 11308 | && htab->params->tls_get_addr_opt | |
| 11309 | && (ALWAYS_EMIT_R2SAVE | |
| 11310 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11311 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11312 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11313 | ||
| e7d1c40c | 11314 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11315 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11316 | if (info->emitrelocations) |
| 11317 | { | |
| 6f20ed8a | 11318 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11319 | += ((PPC_HA (off) != 0) |
| 11320 | + (htab->opd_abi | |
| e7d1c40c | 11321 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11322 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11323 | : 1)); | |
| 6f20ed8a | 11324 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11325 | } |
| 721956f4 AM |
11326 | } |
| 11327 | else | |
| 11328 | { | |
| ad8e1ba5 AM |
11329 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11330 | variants. */ | |
| ac2df442 | 11331 | bfd_vma r2off = 0; |
| 6911b7dc | 11332 | bfd_vma local_off = 0; |
| ac2df442 | 11333 | |
| 721956f4 AM |
11334 | off = (stub_entry->target_value |
| 11335 | + stub_entry->target_section->output_offset | |
| 11336 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11337 | off -= (stub_entry->group->stub_sec->size |
| 11338 | + stub_entry->group->stub_sec->output_offset | |
| 11339 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11340 | |
| ad8e1ba5 AM |
11341 | /* Reset the stub type from the plt variant in case we now |
| 11342 | can reach with a shorter stub. */ | |
| 11343 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11344 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11345 | ||
| 11346 | size = 4; | |
| 11347 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11348 | { | |
| 25f53a85 | 11349 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11350 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11351 | { |
| 11352 | htab->stub_error = TRUE; | |
| 11353 | return FALSE; | |
| 11354 | } | |
| a7c49797 | 11355 | size = 8; |
| ac2df442 | 11356 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11357 | size += 4; |
| 11358 | if (PPC_LO (r2off) != 0) | |
| 11359 | size += 4; | |
| ac2df442 | 11360 | off -= size - 4; |
| ad8e1ba5 AM |
11361 | } |
| 11362 | ||
| 6911b7dc AM |
11363 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11364 | ||
| 6a3858a6 | 11365 | /* If the branch offset is too big, use a ppc_stub_plt_branch. |
| b9e5796b AM |
11366 | Do the same for -R objects without function descriptors. */ |
| 11367 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11368 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11369 | && r2off == 0 |
| 11370 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11371 | { |
| 11372 | struct ppc_branch_hash_entry *br_entry; | |
| 11373 | ||
| 11374 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11375 | stub_entry->root.string + 9, | |
| b34976b6 | 11376 | TRUE, FALSE); |
| 721956f4 AM |
11377 | if (br_entry == NULL) |
| 11378 | { | |
| cf97bcb0 AM |
11379 | _bfd_error_handler (_("can't build branch stub `%s'"), |
| 11380 | stub_entry->root.string); | |
| b34976b6 AM |
11381 | htab->stub_error = TRUE; |
| 11382 | return FALSE; | |
| 721956f4 AM |
11383 | } |
| 11384 | ||
| 11385 | if (br_entry->iter != htab->stub_iteration) | |
| 11386 | { | |
| 11387 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11388 | br_entry->offset = htab->brlt->size; |
| 11389 | htab->brlt->size += 8; | |
| 63bc6f6c | 11390 | |
| ee75fd95 | 11391 | if (htab->relbrlt != NULL) |
| eea6121a | 11392 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11393 | else if (info->emitrelocations) |
| 11394 | { | |
| 11395 | htab->brlt->reloc_count += 1; | |
| 11396 | htab->brlt->flags |= SEC_RELOC; | |
| 11397 | } | |
| 721956f4 | 11398 | } |
| ad8e1ba5 AM |
11399 | |
| 11400 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11401 | off = (br_entry->offset |
| 11402 | + htab->brlt->output_offset | |
| 11403 | + htab->brlt->output_section->vma | |
| 06bcf541 | 11404 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11405 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11406 | |
| 176a0d42 AM |
11407 | if (info->emitrelocations) |
| 11408 | { | |
| 6f20ed8a AM |
11409 | stub_entry->group->stub_sec->reloc_count |
| 11410 | += 1 + (PPC_HA (off) != 0); | |
| 11411 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11412 | } |
| 11413 | ||
| 00f412ee | 11414 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11415 | { |
| 11416 | size = 12; | |
| 176a0d42 | 11417 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11418 | size = 16; |
| 11419 | } | |
| 11420 | else | |
| 11421 | { | |
| 00f412ee | 11422 | size = 16; |
| 176a0d42 | 11423 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11424 | size += 4; |
| 11425 | ||
| 11426 | if (PPC_HA (r2off) != 0) | |
| 11427 | size += 4; | |
| 00f412ee AM |
11428 | if (PPC_LO (r2off) != 0) |
| 11429 | size += 4; | |
| ac2df442 | 11430 | } |
| 721956f4 | 11431 | } |
| 84f5d08e AM |
11432 | else if (info->emitrelocations) |
| 11433 | { | |
| 6f20ed8a AM |
11434 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11435 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11436 | } |
| 721956f4 AM |
11437 | } |
| 11438 | ||
| 6f20ed8a | 11439 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11440 | return TRUE; |
| 721956f4 AM |
11441 | } |
| 11442 | ||
| 11443 | /* Set up various things so that we can make a list of input sections | |
| 11444 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11445 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11446 | |
| 11447 | int | |
| e7d1c40c | 11448 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11449 | { |
| 6f20ed8a | 11450 | unsigned int id; |
| 721956f4 AM |
11451 | bfd_size_type amt; |
| 11452 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11453 | ||
| 4dfe6ac6 NC |
11454 | if (htab == NULL) |
| 11455 | return -1; | |
| 4c52953f | 11456 | |
| 6f20ed8a AM |
11457 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11458 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11459 | htab->sec_info = bfd_zmalloc (amt); | |
| 11460 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11461 | return -1; |
| 11462 | ||
| 3d6f9012 AM |
11463 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11464 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11465 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11466 | |
| 721956f4 AM |
11467 | return 1; |
| 11468 | } | |
| 11469 | ||
| 927be08e AM |
11470 | /* Set up for first pass at multitoc partitioning. */ |
| 11471 | ||
| 11472 | void | |
| 11473 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11474 | { | |
| 11475 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11476 | ||
| 1c865ab2 | 11477 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11478 | htab->toc_bfd = NULL; |
| 11479 | htab->toc_first_sec = NULL; | |
| 11480 | } | |
| 11481 | ||
| e717da7e AM |
11482 | /* The linker repeatedly calls this function for each TOC input section |
| 11483 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11484 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11485 | |
| 927be08e | 11486 | bfd_boolean |
| 4ce794b7 | 11487 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11488 | { |
| 11489 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11490 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11491 | |
| 4dfe6ac6 NC |
11492 | if (htab == NULL) |
| 11493 | return FALSE; | |
| 11494 | ||
| 927be08e | 11495 | if (!htab->second_toc_pass) |
| 4c52953f | 11496 | { |
| 927be08e | 11497 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11498 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11499 | ||
| 11500 | if (new_bfd) | |
| bf102f86 AM |
11501 | { |
| 11502 | htab->toc_bfd = isec->owner; | |
| 11503 | htab->toc_first_sec = isec; | |
| 11504 | } | |
| 927be08e | 11505 | |
| bf102f86 AM |
11506 | addr = isec->output_offset + isec->output_section->vma; |
| 11507 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11508 | limit = 0x80008000; |
| 11509 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11510 | limit = 0x10000; | |
| 11511 | if (off + isec->size > limit) | |
| bf102f86 AM |
11512 | { |
| 11513 | addr = (htab->toc_first_sec->output_offset | |
| 11514 | + htab->toc_first_sec->output_section->vma); | |
| 11515 | htab->toc_curr = addr; | |
| a27e685f | 11516 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11517 | } |
| 99877b66 | 11518 | |
| 927be08e AM |
11519 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11520 | for the input section to be the offset relative to the | |
| 11521 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11522 | offset allows us to move the toc as a whole without | |
| 11523 | recalculating input elf_gp. */ | |
| 06bcf541 | 11524 | off = htab->toc_curr - elf_gp (info->output_bfd); |
| 927be08e AM |
11525 | off += TOC_BASE_OFF; |
| 11526 | ||
| 11527 | /* Die if someone uses a linker script that doesn't keep input | |
| 11528 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11529 | if (new_bfd |
| 11530 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11531 | && elf_gp (isec->owner) != off) |
| 11532 | return FALSE; | |
| 11533 | ||
| 11534 | elf_gp (isec->owner) = off; | |
| 11535 | return TRUE; | |
| 4c52953f | 11536 | } |
| 927be08e AM |
11537 | |
| 11538 | /* During the second pass toc_first_sec points to the start of | |
| 11539 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11540 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11541 | if (htab->toc_bfd == isec->owner) | |
| 11542 | return TRUE; | |
| 11543 | htab->toc_bfd = isec->owner; | |
| 11544 | ||
| 11545 | if (htab->toc_first_sec == NULL | |
| 11546 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11547 | { | |
| 11548 | htab->toc_curr = elf_gp (isec->owner); | |
| 11549 | htab->toc_first_sec = isec; | |
| 11550 | } | |
| 11551 | addr = (htab->toc_first_sec->output_offset | |
| 11552 | + htab->toc_first_sec->output_section->vma); | |
| 06bcf541 | 11553 | off = addr - elf_gp (info->output_bfd) + TOC_BASE_OFF; |
| 927be08e AM |
11554 | elf_gp (isec->owner) = off; |
| 11555 | ||
| 11556 | return TRUE; | |
| ad8e1ba5 AM |
11557 | } |
| 11558 | ||
| 927be08e AM |
11559 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11560 | symbol H. */ | |
| 11561 | ||
| 11562 | static bfd_boolean | |
| 11563 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11564 | { | |
| 11565 | if (h->root.type == bfd_link_hash_indirect) | |
| 11566 | return TRUE; | |
| 11567 | ||
| 927be08e AM |
11568 | merge_got_entries (&h->got.glist); |
| 11569 | ||
| 11570 | return TRUE; | |
| 11571 | } | |
| 11572 | ||
| 11573 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11574 | symbol H. */ | |
| 11575 | ||
| 11576 | static bfd_boolean | |
| 11577 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11578 | { | |
| 11579 | struct got_entry *gent; | |
| 11580 | ||
| 11581 | if (h->root.type == bfd_link_hash_indirect) | |
| 11582 | return TRUE; | |
| 11583 | ||
| 927be08e AM |
11584 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11585 | if (!gent->is_indirect) | |
| 11586 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11587 | return TRUE; | |
| 11588 | } | |
| 11589 | ||
| 11590 | /* Called on the first multitoc pass after the last call to | |
| 11591 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11592 | entries. */ | |
| 11593 | ||
| 11594 | bfd_boolean | |
| 11595 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11596 | { |
| 11597 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11598 | struct bfd *ibfd, *ibfd2; |
| 11599 | bfd_boolean done_something; | |
| 11600 | ||
| 11601 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11602 | |
| 7865406b AM |
11603 | if (!htab->do_multi_toc) |
| 11604 | return FALSE; | |
| 11605 | ||
| d0fae19d | 11606 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11607 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11608 | ||
| 11609 | /* And tlsld_got. */ | |
| c72f2fb2 | 11610 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11611 | { |
| 11612 | struct got_entry *ent, *ent2; | |
| 11613 | ||
| 11614 | if (!is_ppc64_elf (ibfd)) | |
| 11615 | continue; | |
| 11616 | ||
| 11617 | ent = ppc64_tlsld_got (ibfd); | |
| 11618 | if (!ent->is_indirect | |
| 11619 | && ent->got.offset != (bfd_vma) -1) | |
| 11620 | { | |
| c72f2fb2 | 11621 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11622 | { |
| 11623 | if (!is_ppc64_elf (ibfd2)) | |
| 11624 | continue; | |
| 11625 | ||
| 11626 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11627 | if (!ent2->is_indirect | |
| 11628 | && ent2->got.offset != (bfd_vma) -1 | |
| 11629 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11630 | { | |
| 11631 | ent2->is_indirect = TRUE; | |
| 11632 | ent2->got.ent = ent; | |
| 11633 | } | |
| 11634 | } | |
| 11635 | } | |
| 11636 | } | |
| 11637 | ||
| 11638 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11639 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11640 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11641 | htab->got_reli_size = 0; |
| 11642 | ||
| c72f2fb2 | 11643 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11644 | { |
| 11645 | asection *got, *relgot; | |
| 11646 | ||
| 11647 | if (!is_ppc64_elf (ibfd)) | |
| 11648 | continue; | |
| 11649 | ||
| 11650 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11651 | if (got != NULL) | |
| 11652 | { | |
| 11653 | got->rawsize = got->size; | |
| 11654 | got->size = 0; | |
| 11655 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11656 | relgot->rawsize = relgot->size; | |
| 11657 | relgot->size = 0; | |
| 11658 | } | |
| 11659 | } | |
| 11660 | ||
| 11661 | /* Now reallocate the got, local syms first. We don't need to | |
| 11662 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11663 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11664 | { |
| 11665 | struct got_entry **lgot_ents; | |
| 11666 | struct got_entry **end_lgot_ents; | |
| 11667 | struct plt_entry **local_plt; | |
| 11668 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11669 | unsigned char *lgot_masks; |
| 927be08e AM |
11670 | bfd_size_type locsymcount; |
| 11671 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11672 | asection *s; |
| 927be08e AM |
11673 | |
| 11674 | if (!is_ppc64_elf (ibfd)) | |
| 11675 | continue; | |
| 11676 | ||
| 11677 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11678 | if (!lgot_ents) | |
| 11679 | continue; | |
| 11680 | ||
| 11681 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11682 | locsymcount = symtab_hdr->sh_info; | |
| 11683 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11684 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11685 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11686 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11687 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11688 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11689 | { | |
| 11690 | struct got_entry *ent; | |
| 11691 | ||
| 11692 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11693 | { |
| 19e08130 AM |
11694 | unsigned int ent_size = 8; |
| 11695 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11696 | ||
| d0fae19d AM |
11697 | ent->got.offset = s->size; |
| 11698 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11699 | { |
| 19e08130 AM |
11700 | ent_size *= 2; |
| 11701 | rel_size *= 2; | |
| 11702 | } | |
| 11703 | s->size += ent_size; | |
| 11704 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11705 | { | |
| 33e44f2e | 11706 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11707 | htab->got_reli_size += rel_size; |
| 11708 | } | |
| 6a3858a6 AM |
11709 | else if (bfd_link_pic (info) |
| 11710 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 11711 | && bfd_link_executable (info))) | |
| 19e08130 AM |
11712 | { |
| 11713 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11714 | srel->size += rel_size; | |
| d0fae19d AM |
11715 | } |
| 11716 | } | |
| 927be08e AM |
11717 | } |
| 11718 | } | |
| 11719 | ||
| 11720 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11721 | ||
| c72f2fb2 | 11722 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11723 | { |
| 11724 | struct got_entry *ent; | |
| 11725 | ||
| 11726 | if (!is_ppc64_elf (ibfd)) | |
| 11727 | continue; | |
| 11728 | ||
| 11729 | ent = ppc64_tlsld_got (ibfd); | |
| 11730 | if (!ent->is_indirect | |
| 11731 | && ent->got.offset != (bfd_vma) -1) | |
| 11732 | { | |
| 11733 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11734 | ent->got.offset = s->size; | |
| 11735 | s->size += 16; | |
| 0e1862bb | 11736 | if (bfd_link_pic (info)) |
| 927be08e AM |
11737 | { |
| 11738 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11739 | srel->size += sizeof (Elf64_External_Rela); | |
| 11740 | } | |
| 11741 | } | |
| 11742 | } | |
| 11743 | ||
| 33e44f2e | 11744 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11745 | if (!done_something) |
| c72f2fb2 | 11746 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11747 | { |
| 11748 | asection *got; | |
| 11749 | ||
| 11750 | if (!is_ppc64_elf (ibfd)) | |
| 11751 | continue; | |
| 11752 | ||
| 11753 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11754 | if (got != NULL) | |
| 11755 | { | |
| 11756 | done_something = got->rawsize != got->size; | |
| 11757 | if (done_something) | |
| 11758 | break; | |
| 11759 | } | |
| 11760 | } | |
| 11761 | ||
| 11762 | if (done_something) | |
| e7d1c40c | 11763 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11764 | |
| 11765 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11766 | on input sections. */ | |
| 11767 | htab->toc_bfd = NULL; | |
| 11768 | htab->toc_first_sec = NULL; | |
| 11769 | htab->second_toc_pass = TRUE; | |
| 11770 | return done_something; | |
| 11771 | } | |
| 11772 | ||
| 11773 | /* Called after second pass of multitoc partitioning. */ | |
| 11774 | ||
| 11775 | void | |
| 11776 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11777 | { | |
| 11778 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11779 | ||
| 11780 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11781 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11782 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11783 | } |
| 11784 | ||
| 9b5ecbd0 AM |
11785 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11786 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11787 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11788 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11789 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11790 | for a stub was detected. If called from the top level, a return of | |
| 11791 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11792 | |
| 11793 | static int | |
| 4ce794b7 | 11794 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11795 | { |
| 9b5ecbd0 | 11796 | int ret; |
| 70cc837d AM |
11797 | |
| 11798 | /* Mark this section as checked. */ | |
| 11799 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11800 | |
| 772119ce AM |
11801 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11802 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11803 | return 0; | |
| 11804 | ||
| eea6121a | 11805 | if (isec->size == 0) |
| 082c50f8 AM |
11806 | return 0; |
| 11807 | ||
| 4c52953f AM |
11808 | if (isec->output_section == NULL) |
| 11809 | return 0; | |
| 11810 | ||
| 4c52953f | 11811 | ret = 0; |
| 70cc837d | 11812 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11813 | { |
| 70cc837d AM |
11814 | Elf_Internal_Rela *relstart, *rel; |
| 11815 | Elf_Internal_Sym *local_syms; | |
| 11816 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11817 | |
| 70cc837d AM |
11818 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11819 | info->keep_memory); | |
| 11820 | if (relstart == NULL) | |
| 11821 | return -1; | |
| 90aecf7a | 11822 | |
| 70cc837d AM |
11823 | /* Look for branches to outside of this section. */ |
| 11824 | local_syms = NULL; | |
| 11825 | htab = ppc_hash_table (info); | |
| 11826 | if (htab == NULL) | |
| 11827 | return -1; | |
| 4c52953f | 11828 | |
| 70cc837d | 11829 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11830 | { |
| 70cc837d AM |
11831 | enum elf_ppc64_reloc_type r_type; |
| 11832 | unsigned long r_symndx; | |
| 11833 | struct elf_link_hash_entry *h; | |
| 11834 | struct ppc_link_hash_entry *eh; | |
| 11835 | Elf_Internal_Sym *sym; | |
| 11836 | asection *sym_sec; | |
| 11837 | struct _opd_sec_data *opd; | |
| 11838 | bfd_vma sym_value; | |
| 11839 | bfd_vma dest; | |
| 11840 | ||
| 11841 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11842 | if (r_type != R_PPC64_REL24 | |
| 11843 | && r_type != R_PPC64_REL14 | |
| 11844 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11845 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11846 | continue; | |
| 4c52953f | 11847 | |
| 70cc837d AM |
11848 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11849 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11850 | isec->owner)) | |
| 4c52953f | 11851 | { |
| 70cc837d AM |
11852 | ret = -1; |
| 11853 | break; | |
| 11854 | } | |
| 4c52953f | 11855 | |
| 70cc837d AM |
11856 | /* Calls to dynamic lib functions go through a plt call stub |
| 11857 | that uses r2. */ | |
| 11858 | eh = (struct ppc_link_hash_entry *) h; | |
| 11859 | if (eh != NULL | |
| 11860 | && (eh->elf.plt.plist != NULL | |
| 11861 | || (eh->oh != NULL | |
| 11862 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11863 | { | |
| 11864 | ret = 1; | |
| 11865 | break; | |
| 4c52953f AM |
11866 | } |
| 11867 | ||
| 70cc837d AM |
11868 | if (sym_sec == NULL) |
| 11869 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11870 | continue; |
| 4c52953f | 11871 | |
| 70cc837d AM |
11872 | /* Assume branches to other sections not included in the |
| 11873 | link need stubs too, to cover -R and absolute syms. */ | |
| 11874 | if (sym_sec->output_section == NULL) | |
| 11875 | { | |
| 11876 | ret = 1; | |
| 11877 | break; | |
| 11878 | } | |
| 4c52953f | 11879 | |
| 70cc837d AM |
11880 | if (h == NULL) |
| 11881 | sym_value = sym->st_value; | |
| 11882 | else | |
| 11883 | { | |
| 11884 | if (h->root.type != bfd_link_hash_defined | |
| 11885 | && h->root.type != bfd_link_hash_defweak) | |
| 11886 | abort (); | |
| 11887 | sym_value = h->root.u.def.value; | |
| 11888 | } | |
| 11889 | sym_value += rel->r_addend; | |
| 4c52953f | 11890 | |
| 70cc837d AM |
11891 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11892 | opd = get_opd_info (sym_sec); | |
| 11893 | if (opd != NULL) | |
| 11894 | { | |
| 11895 | if (h == NULL && opd->adjust != NULL) | |
| 11896 | { | |
| 11897 | long adjust; | |
| 4c52953f | 11898 | |
| 92a9c616 | 11899 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11900 | if (adjust == -1) |
| 11901 | /* Assume deleted functions won't ever be called. */ | |
| 11902 | continue; | |
| 11903 | sym_value += adjust; | |
| 11904 | } | |
| 4c52953f | 11905 | |
| aef36ac1 AM |
11906 | dest = opd_entry_value (sym_sec, sym_value, |
| 11907 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11908 | if (dest == (bfd_vma) -1) |
| 11909 | continue; | |
| 11910 | } | |
| 11911 | else | |
| 11912 | dest = (sym_value | |
| 11913 | + sym_sec->output_offset | |
| 11914 | + sym_sec->output_section->vma); | |
| 4c52953f | 11915 | |
| 70cc837d AM |
11916 | /* Ignore branch to self. */ |
| 11917 | if (sym_sec == isec) | |
| 11918 | continue; | |
| 4c52953f | 11919 | |
| 70cc837d AM |
11920 | /* If the called function uses the toc, we need a stub. */ |
| 11921 | if (sym_sec->has_toc_reloc | |
| 11922 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11923 | { |
| 70cc837d | 11924 | ret = 1; |
| 4c52953f AM |
11925 | break; |
| 11926 | } | |
| 70cc837d AM |
11927 | |
| 11928 | /* Assume any branch that needs a long branch stub might in fact | |
| 11929 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11930 | else if (dest - (isec->output_offset | |
| 11931 | + isec->output_section->vma | |
| 6911b7dc AM |
11932 | + rel->r_offset) + (1 << 25) |
| 11933 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11934 | ? h->other | |
| 11935 | : sym->st_other)) | |
| 4c52953f | 11936 | { |
| 70cc837d AM |
11937 | ret = 1; |
| 11938 | break; | |
| 11939 | } | |
| 11940 | ||
| 11941 | /* If calling back to a section in the process of being | |
| 11942 | tested, we can't say for sure that no toc adjusting stubs | |
| 11943 | are needed, so don't return zero. */ | |
| 11944 | else if (sym_sec->call_check_in_progress) | |
| 11945 | ret = 2; | |
| 11946 | ||
| 11947 | /* Branches to another section that itself doesn't have any TOC | |
| 11948 | references are OK. Recursively call ourselves to check. */ | |
| 11949 | else if (!sym_sec->call_check_done) | |
| 11950 | { | |
| 11951 | int recur; | |
| 11952 | ||
| 11953 | /* Mark current section as indeterminate, so that other | |
| 11954 | sections that call back to current won't be marked as | |
| 11955 | known. */ | |
| 11956 | isec->call_check_in_progress = 1; | |
| 11957 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11958 | isec->call_check_in_progress = 0; | |
| 11959 | ||
| 4c52953f AM |
11960 | if (recur != 0) |
| 11961 | { | |
| 70cc837d AM |
11962 | ret = recur; |
| 11963 | if (recur != 2) | |
| 11964 | break; | |
| 4c52953f AM |
11965 | } |
| 11966 | } | |
| 4c52953f | 11967 | } |
| 70cc837d AM |
11968 | |
| 11969 | if (local_syms != NULL | |
| 11970 | && (elf_symtab_hdr (isec->owner).contents | |
| 11971 | != (unsigned char *) local_syms)) | |
| 11972 | free (local_syms); | |
| 11973 | if (elf_section_data (isec)->relocs != relstart) | |
| 11974 | free (relstart); | |
| 9b5ecbd0 AM |
11975 | } |
| 11976 | ||
| 70cc837d AM |
11977 | if ((ret & 1) == 0 |
| 11978 | && isec->map_head.s != NULL | |
| 11979 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11980 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11981 | { | |
| 11982 | if (isec->map_head.s->has_toc_reloc | |
| 11983 | || isec->map_head.s->makes_toc_func_call) | |
| 11984 | ret = 1; | |
| 11985 | else if (!isec->map_head.s->call_check_done) | |
| 11986 | { | |
| 11987 | int recur; | |
| 11988 | isec->call_check_in_progress = 1; | |
| 11989 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11990 | isec->call_check_in_progress = 0; | |
| 11991 | if (recur != 0) | |
| 11992 | ret = recur; | |
| 11993 | } | |
| 11994 | } | |
| 11995 | ||
| 11996 | if (ret == 1) | |
| 11997 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11998 | |
| 9b5ecbd0 AM |
11999 | return ret; |
| 12000 | } | |
| 12001 | ||
| 721956f4 AM |
12002 | /* The linker repeatedly calls this function for each input section, |
| 12003 | in the order that input sections are linked into output sections. | |
| 12004 | Build lists of input sections to determine groupings between which | |
| 12005 | we may insert linker stubs. */ | |
| 12006 | ||
| 9b5ecbd0 | 12007 | bfd_boolean |
| 4ce794b7 | 12008 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12009 | { |
| 12010 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12011 | ||
| 4dfe6ac6 NC |
12012 | if (htab == NULL) |
| 12013 | return FALSE; | |
| 12014 | ||
| 734b6cf9 | 12015 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12016 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12017 | { |
| 3d6f9012 AM |
12018 | /* This happens to make the list in reverse order, |
| 12019 | which is what we want. */ | |
| 6f20ed8a AM |
12020 | htab->sec_info[isec->id].u.list |
| 12021 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12022 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12023 | } |
| ad8e1ba5 | 12024 | |
| 4c52953f | 12025 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12026 | { |
| 8b974ba3 AM |
12027 | /* Analyse sections that aren't already flagged as needing a |
| 12028 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12029 | .fixup contains branches, but only back to the function that | |
| 12030 | hit an exception. */ | |
| 12031 | if (!(isec->has_toc_reloc | |
| 12032 | || (isec->flags & SEC_CODE) == 0 | |
| 12033 | || strcmp (isec->name, ".fixup") == 0 | |
| 12034 | || isec->call_check_done)) | |
| 12035 | { | |
| 12036 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12037 | return FALSE; |
| 8b974ba3 AM |
12038 | } |
| 12039 | /* Make all sections use the TOC assigned for this object file. | |
| 12040 | This will be wrong for pasted sections; We fix that in | |
| 12041 | check_pasted_section(). */ | |
| 12042 | if (elf_gp (isec->owner) != 0) | |
| 12043 | htab->toc_curr = elf_gp (isec->owner); | |
| 12044 | } | |
| 12045 | ||
| 6f20ed8a | 12046 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12047 | return TRUE; |
| 721956f4 AM |
12048 | } |
| 12049 | ||
| 70cc837d AM |
12050 | /* Check that all .init and .fini sections use the same toc, if they |
| 12051 | have toc relocs. */ | |
| 12052 | ||
| 12053 | static bfd_boolean | |
| 12054 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12055 | { | |
| 12056 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12057 | ||
| 12058 | if (o != NULL) | |
| 12059 | { | |
| 12060 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12061 | bfd_vma toc_off = 0; | |
| 12062 | asection *i; | |
| 12063 | ||
| 12064 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12065 | if (i->has_toc_reloc) | |
| 12066 | { | |
| 12067 | if (toc_off == 0) | |
| 6f20ed8a AM |
12068 | toc_off = htab->sec_info[i->id].toc_off; |
| 12069 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12070 | return FALSE; |
| 12071 | } | |
| 6683a28d AM |
12072 | |
| 12073 | if (toc_off == 0) | |
| 12074 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12075 | if (i->makes_toc_func_call) | |
| 12076 | { | |
| 6f20ed8a | 12077 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12078 | break; |
| 12079 | } | |
| 12080 | ||
| 70cc837d AM |
12081 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12082 | if (toc_off != 0) | |
| 12083 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12084 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12085 | } |
| 12086 | return TRUE; | |
| 12087 | } | |
| 12088 | ||
| 12089 | bfd_boolean | |
| 12090 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12091 | { | |
| 12092 | return (check_pasted_section (info, ".init") | |
| 12093 | & check_pasted_section (info, ".fini")); | |
| 12094 | } | |
| 12095 | ||
| 721956f4 AM |
12096 | /* See whether we can group stub sections together. Grouping stub |
| 12097 | sections may result in fewer stubs. More importantly, we need to | |
| 12098 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12099 | .fini output sections respectively, because glibc splits the | |
| 12100 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12101 | the middle of a function is not a good idea. */ | |
| 12102 | ||
| 6f20ed8a AM |
12103 | static bfd_boolean |
| 12104 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12105 | bfd_size_type stub_group_size, |
| 12106 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12107 | { |
| 6f20ed8a AM |
12108 | struct ppc_link_hash_table *htab; |
| 12109 | asection *osec; | |
| 7c8fe5c4 AM |
12110 | bfd_boolean suppress_size_errors; |
| 12111 | ||
| 6f20ed8a AM |
12112 | htab = ppc_hash_table (info); |
| 12113 | if (htab == NULL) | |
| 12114 | return FALSE; | |
| 12115 | ||
| 7c8fe5c4 | 12116 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12117 | if (stub_group_size == 1) |
| 12118 | { | |
| 12119 | /* Default values. */ | |
| 12120 | if (stubs_always_before_branch) | |
| 09f92717 | 12121 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12122 | else |
| 09f92717 | 12123 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12124 | suppress_size_errors = TRUE; |
| 12125 | } | |
| 12126 | ||
| 6f20ed8a | 12127 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12128 | { |
| 6f20ed8a AM |
12129 | asection *tail; |
| 12130 | ||
| 12131 | if (osec->id >= htab->sec_info_arr_size) | |
| 12132 | continue; | |
| 12133 | ||
| 12134 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12135 | while (tail != NULL) |
| 721956f4 | 12136 | { |
| 734b6cf9 AM |
12137 | asection *curr; |
| 12138 | asection *prev; | |
| 12139 | bfd_size_type total; | |
| 12140 | bfd_boolean big_sec; | |
| 12141 | bfd_vma curr_toc; | |
| 6f20ed8a | 12142 | struct map_stub *group; |
| 09f92717 | 12143 | bfd_size_type group_size; |
| 734b6cf9 AM |
12144 | |
| 12145 | curr = tail; | |
| eea6121a | 12146 | total = tail->size; |
| 09f92717 AM |
12147 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12148 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12149 | ? stub_group_size >> 10 : stub_group_size); | |
| 12150 | ||
| 12151 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12152 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12153 | /* xgettext:c-format */ |
| 871b3ab2 | 12154 | _bfd_error_handler (_("%pB section %pA exceeds stub group size"), |
| 4eca0228 | 12155 | tail->owner, tail); |
| 6f20ed8a | 12156 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12157 | |
| 6f20ed8a | 12158 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12159 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12160 | < (ppc64_elf_section_data (prev) != NULL |
| 12161 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12162 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12163 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12164 | curr = prev; |
| 12165 | ||
| 12166 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12167 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12168 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12169 | group_size, in which case we may be toast.) We should |
| 12170 | really be keeping track of the total size of stubs added | |
| 12171 | here, as stubs contribute to the final output section | |
| 12172 | size. That's a little tricky, and this way will only | |
| 12173 | break if stubs added make the total size more than 2^25, | |
| 12174 | ie. for the default stub_group_size, if stubs total more | |
| 12175 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12176 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12177 | if (group == NULL) | |
| 12178 | return FALSE; | |
| 12179 | group->link_sec = curr; | |
| 12180 | group->stub_sec = NULL; | |
| a4b6fadd | 12181 | group->needs_save_res = 0; |
| d4aaa2a0 | 12182 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12183 | group->next = htab->group; |
| 12184 | htab->group = group; | |
| 734b6cf9 | 12185 | do |
| 721956f4 | 12186 | { |
| 6f20ed8a | 12187 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12188 | /* Set up this stub group. */ |
| 6f20ed8a | 12189 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12190 | } |
| 734b6cf9 AM |
12191 | while (tail != curr && (tail = prev) != NULL); |
| 12192 | ||
| 09f92717 | 12193 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12194 | bytes before the stub section can be handled by it too. |
| 12195 | Don't do this if we have a really large section after the | |
| 12196 | stubs, as adding more stubs increases the chance that | |
| 12197 | branches may not reach into the stub section. */ | |
| 12198 | if (!stubs_always_before_branch && !big_sec) | |
| 12199 | { | |
| 12200 | total = 0; | |
| 12201 | while (prev != NULL | |
| 12202 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12203 | < (ppc64_elf_section_data (prev) != NULL |
| 12204 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12205 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12206 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12207 | { |
| 12208 | tail = prev; | |
| 6f20ed8a AM |
12209 | prev = htab->sec_info[tail->id].u.list; |
| 12210 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12211 | } |
| 12212 | } | |
| 12213 | tail = prev; | |
| 721956f4 AM |
12214 | } |
| 12215 | } | |
| 6f20ed8a | 12216 | return TRUE; |
| 721956f4 AM |
12217 | } |
| 12218 | ||
| 58d180e8 AM |
12219 | static const unsigned char glink_eh_frame_cie[] = |
| 12220 | { | |
| 12221 | 0, 0, 0, 16, /* length. */ | |
| 12222 | 0, 0, 0, 0, /* id. */ | |
| 12223 | 1, /* CIE version. */ | |
| 12224 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12225 | 4, /* Code alignment. */ | |
| 12226 | 0x78, /* Data alignment. */ | |
| 12227 | 65, /* RA reg. */ | |
| 12228 | 1, /* Augmentation size. */ | |
| 12229 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12230 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12231 | }; |
| 12232 | ||
| d4aaa2a0 AM |
12233 | static size_t |
| 12234 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12235 | { | |
| 12236 | size_t this_size = 17; | |
| 12237 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12238 | { | |
| 12239 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12240 | if (to_bctrl < 64) | |
| 12241 | this_size += 1; | |
| 12242 | else if (to_bctrl < 256) | |
| 12243 | this_size += 2; | |
| 12244 | else if (to_bctrl < 65536) | |
| 12245 | this_size += 3; | |
| 12246 | else | |
| 12247 | this_size += 5; | |
| 12248 | this_size += 6; | |
| 12249 | } | |
| 12250 | this_size = (this_size + align - 1) & -align; | |
| 12251 | return this_size; | |
| 12252 | } | |
| 12253 | ||
| d969d15f AM |
12254 | /* Stripping output sections is normally done before dynamic section |
| 12255 | symbols have been allocated. This function is called later, and | |
| 12256 | handles cases like htab->brlt which is mapped to its own output | |
| 12257 | section. */ | |
| 12258 | ||
| 12259 | static void | |
| 12260 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12261 | { | |
| 12262 | if (isec->size == 0 | |
| 12263 | && isec->output_section->size == 0 | |
| 53d8967a | 12264 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12265 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12266 | isec->output_section) | |
| 12267 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12268 | { | |
| 12269 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12270 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12271 | info->output_bfd->section_count--; | |
| 12272 | } | |
| 12273 | } | |
| 12274 | ||
| 721956f4 AM |
12275 | /* Determine and set the size of the stub section for a final link. |
| 12276 | ||
| 12277 | The basic idea here is to examine all the relocations looking for | |
| 12278 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12279 | instruction. */ | |
| 12280 | ||
| b34976b6 | 12281 | bfd_boolean |
| e7d1c40c | 12282 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12283 | { |
| 12284 | bfd_size_type stub_group_size; | |
| b34976b6 | 12285 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12286 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12287 | ||
| 4dfe6ac6 NC |
12288 | if (htab == NULL) |
| 12289 | return FALSE; | |
| 12290 | ||
| 0e1862bb | 12291 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12292 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12293 | if (!htab->opd_abi) |
| e7d1c40c AM |
12294 | htab->params->plt_thread_safe = 0; |
| 12295 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12296 | { |
| e2458743 | 12297 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12298 | { |
| 12299 | "pthread_create", | |
| 12300 | /* libstdc++ */ | |
| 12301 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12302 | /* librt */ | |
| 12303 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12304 | "mq_notify", "create_timer", | |
| 12305 | /* libanl */ | |
| 12306 | "getaddrinfo_a", | |
| 12307 | /* libgomp */ | |
| 2300b5a1 | 12308 | "GOMP_parallel", |
| 794e51c0 | 12309 | "GOMP_parallel_start", |
| 2300b5a1 | 12310 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12311 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12312 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12313 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12314 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12315 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12316 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12317 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12318 | "GOMP_parallel_sections", |
| 68ffbac6 | 12319 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12320 | /* libgo */ |
| 12321 | "__go_go", | |
| 794e51c0 AM |
12322 | }; |
| 12323 | unsigned i; | |
| 12324 | ||
| a4b6fadd | 12325 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12326 | { |
| 12327 | struct elf_link_hash_entry *h; | |
| 12328 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12329 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12330 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12331 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12332 | break; |
| 12333 | } | |
| 12334 | } | |
| e7d1c40c AM |
12335 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12336 | if (htab->params->group_size < 0) | |
| 12337 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12338 | else |
| e7d1c40c | 12339 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12340 | |
| 6f20ed8a AM |
12341 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12342 | return FALSE; | |
| 721956f4 | 12343 | |
| c9301e31 AM |
12344 | #define STUB_SHRINK_ITER 20 |
| 12345 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12346 | exit on a stub section shrinking. This is to break out of a | |
| 12347 | pathological case where adding stubs on one iteration decreases | |
| 12348 | section gaps (perhaps due to alignment), which then requires | |
| 12349 | fewer or smaller stubs on the next iteration. */ | |
| 12350 | ||
| 721956f4 AM |
12351 | while (1) |
| 12352 | { | |
| 12353 | bfd *input_bfd; | |
| 12354 | unsigned int bfd_indx; | |
| a4b6fadd | 12355 | struct map_stub *group; |
| 721956f4 AM |
12356 | |
| 12357 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12358 | |
| 12359 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12360 | input_bfd != NULL; | |
| c72f2fb2 | 12361 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12362 | { |
| 12363 | Elf_Internal_Shdr *symtab_hdr; | |
| 12364 | asection *section; | |
| 6cdc0ccc | 12365 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12366 | |
| 0c8d6e5c | 12367 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12368 | continue; |
| 12369 | ||
| 721956f4 | 12370 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12371 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12372 | if (symtab_hdr->sh_info == 0) |
| 12373 | continue; | |
| 12374 | ||
| 721956f4 AM |
12375 | /* Walk over each section attached to the input bfd. */ |
| 12376 | for (section = input_bfd->sections; | |
| 12377 | section != NULL; | |
| 12378 | section = section->next) | |
| 12379 | { | |
| 721956f4 | 12380 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12381 | |
| 12382 | /* If there aren't any relocs, then there's nothing more | |
| 12383 | to do. */ | |
| 12384 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12385 | || (section->flags & SEC_ALLOC) == 0 |
| 12386 | || (section->flags & SEC_LOAD) == 0 | |
| 12387 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12388 | || section->reloc_count == 0) |
| 12389 | continue; | |
| 12390 | ||
| 12391 | /* If this section is a link-once section that will be | |
| 12392 | discarded, then don't create any stubs. */ | |
| 12393 | if (section->output_section == NULL | |
| 927be08e | 12394 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12395 | continue; |
| 12396 | ||
| 1e2f5b6e AM |
12397 | /* Get the relocs. */ |
| 12398 | internal_relocs | |
| 4ce794b7 | 12399 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12400 | info->keep_memory); |
| 721956f4 | 12401 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12402 | goto error_ret_free_local; |
| 721956f4 AM |
12403 | |
| 12404 | /* Now examine each relocation. */ | |
| 12405 | irela = internal_relocs; | |
| 12406 | irelaend = irela + section->reloc_count; | |
| 12407 | for (; irela < irelaend; irela++) | |
| 12408 | { | |
| 4ce794b7 AM |
12409 | enum elf_ppc64_reloc_type r_type; |
| 12410 | unsigned int r_indx; | |
| 721956f4 AM |
12411 | enum ppc_stub_type stub_type; |
| 12412 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12413 | asection *sym_sec, *code_sec; |
| e054468f | 12414 | bfd_vma sym_value, code_value; |
| 721956f4 | 12415 | bfd_vma destination; |
| 6911b7dc | 12416 | unsigned long local_off; |
| 8843416a | 12417 | bfd_boolean ok_dest; |
| 721956f4 | 12418 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12419 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12420 | struct elf_link_hash_entry *h; |
| 12421 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12422 | char *stub_name; |
| 12423 | const asection *id_sec; | |
| 74f0fb50 | 12424 | struct _opd_sec_data *opd; |
| e054468f | 12425 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12426 | |
| 12427 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12428 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12429 | ||
| 4ce794b7 | 12430 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12431 | { |
| 12432 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12433 | goto error_ret_free_internal; |
| 721956f4 AM |
12434 | } |
| 12435 | ||
| 12436 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12437 | if (r_type != R_PPC64_REL24 |
| 12438 | && r_type != R_PPC64_REL14 | |
| 12439 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12440 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12441 | continue; |
| 12442 | ||
| 12443 | /* Now determine the call target, its name, value, | |
| 12444 | section. */ | |
| 411e1bfb AM |
12445 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12446 | r_indx, input_bfd)) | |
| 12447 | goto error_ret_free_internal; | |
| 12448 | hash = (struct ppc_link_hash_entry *) h; | |
| 12449 | ||
| 8843416a | 12450 | ok_dest = FALSE; |
| 8387904d | 12451 | fdh = NULL; |
| 7fe2b9a6 | 12452 | sym_value = 0; |
| 411e1bfb | 12453 | if (hash == NULL) |
| 721956f4 | 12454 | { |
| 411e1bfb | 12455 | sym_value = sym->st_value; |
| c27b8c2a AM |
12456 | if (sym_sec != NULL |
| 12457 | && sym_sec->output_section != NULL) | |
| 12458 | ok_dest = TRUE; | |
| 721956f4 | 12459 | } |
| 7fe2b9a6 AM |
12460 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12461 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12462 | { | |
| 12463 | sym_value = hash->elf.root.u.def.value; | |
| 12464 | if (sym_sec->output_section != NULL) | |
| 12465 | ok_dest = TRUE; | |
| 12466 | } | |
| 12467 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12468 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12469 | { |
| 99877b66 | 12470 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12471 | use the func descriptor sym instead if it is |
| 12472 | defined. */ | |
| ceb1f1ef | 12473 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12474 | && hash->oh != NULL) |
| 8387904d | 12475 | { |
| 8c5b4e52 | 12476 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12477 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12478 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12479 | { | |
| 12480 | sym_sec = fdh->elf.root.u.def.section; | |
| 12481 | sym_value = fdh->elf.root.u.def.value; | |
| 12482 | if (sym_sec->output_section != NULL) | |
| 12483 | ok_dest = TRUE; | |
| 12484 | } | |
| 99877b66 AM |
12485 | else |
| 12486 | fdh = NULL; | |
| 8387904d | 12487 | } |
| 7fe2b9a6 AM |
12488 | } |
| 12489 | else | |
| 12490 | { | |
| 12491 | bfd_set_error (bfd_error_bad_value); | |
| 12492 | goto error_ret_free_internal; | |
| 721956f4 AM |
12493 | } |
| 12494 | ||
| 8843416a | 12495 | destination = 0; |
| 6911b7dc | 12496 | local_off = 0; |
| 8843416a AM |
12497 | if (ok_dest) |
| 12498 | { | |
| 12499 | sym_value += irela->r_addend; | |
| 12500 | destination = (sym_value | |
| 12501 | + sym_sec->output_offset | |
| 12502 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12503 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12504 | ? hash->elf.other | |
| 12505 | : sym->st_other); | |
| 8843416a AM |
12506 | } |
| 12507 | ||
| 8387904d | 12508 | code_sec = sym_sec; |
| e054468f | 12509 | code_value = sym_value; |
| 74f0fb50 AM |
12510 | opd = get_opd_info (sym_sec); |
| 12511 | if (opd != NULL) | |
| 8387904d AM |
12512 | { |
| 12513 | bfd_vma dest; | |
| 12514 | ||
| 74f0fb50 | 12515 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12516 | { |
| 51aecdc5 | 12517 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12518 | if (adjust == -1) |
| 12519 | continue; | |
| e054468f | 12520 | code_value += adjust; |
| 8387904d AM |
12521 | sym_value += adjust; |
| 12522 | } | |
| 12523 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12524 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12525 | if (dest != (bfd_vma) -1) |
| 12526 | { | |
| 12527 | destination = dest; | |
| 12528 | if (fdh != NULL) | |
| 12529 | { | |
| 12530 | /* Fixup old ABI sym to point at code | |
| 12531 | entry. */ | |
| 99877b66 | 12532 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12533 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12534 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12535 | } |
| 12536 | } | |
| 12537 | } | |
| 12538 | ||
| 721956f4 | 12539 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12540 | plt_ent = NULL; |
| 721956f4 | 12541 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12542 | &plt_ent, destination, |
| 12543 | local_off); | |
| ad8e1ba5 AM |
12544 | |
| 12545 | if (stub_type != ppc_stub_plt_call) | |
| 12546 | { | |
| 12547 | /* Check whether we need a TOC adjusting stub. | |
| 12548 | Since the linker pastes together pieces from | |
| 12549 | different object files when creating the | |
| 12550 | _init and _fini functions, it may be that a | |
| 12551 | call to what looks like a local sym is in | |
| 12552 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12553 | if (code_sec != NULL |
| 12554 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12555 | && (htab->sec_info[code_sec->id].toc_off |
| 12556 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12557 | && (code_sec->has_toc_reloc |
| 12558 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12559 | stub_type = ppc_stub_long_branch_r2off; |
| 12560 | } | |
| 12561 | ||
| 721956f4 AM |
12562 | if (stub_type == ppc_stub_none) |
| 12563 | continue; | |
| 12564 | ||
| 411e1bfb AM |
12565 | /* __tls_get_addr calls might be eliminated. */ |
| 12566 | if (stub_type != ppc_stub_plt_call | |
| 12567 | && hash != NULL | |
| 8387904d AM |
12568 | && (hash == htab->tls_get_addr |
| 12569 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12570 | && section->has_tls_reloc |
| 12571 | && irela != internal_relocs) | |
| 12572 | { | |
| 12573 | /* Get tls info. */ | |
| f961d9dd | 12574 | unsigned char *tls_mask; |
| 411e1bfb | 12575 | |
| 3a71aa26 | 12576 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12577 | irela - 1, input_bfd)) |
| 12578 | goto error_ret_free_internal; | |
| e7b938ca | 12579 | if (*tls_mask != 0) |
| 411e1bfb AM |
12580 | continue; |
| 12581 | } | |
| 12582 | ||
| f378ab09 | 12583 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12584 | { |
| 6e1816be AM |
12585 | if (!htab->opd_abi |
| 12586 | && htab->params->plt_localentry0 != 0 | |
| 12587 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12588 | htab->has_plt_localentry0 = 1; | |
| 12589 | else if (irela + 1 < irelaend | |
| 12590 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12591 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12592 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12593 | { |
| 12594 | if (!tocsave_find (htab, INSERT, | |
| 12595 | &local_syms, irela + 1, input_bfd)) | |
| 12596 | goto error_ret_free_internal; | |
| 12597 | } | |
| f378ab09 AM |
12598 | else |
| 12599 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12600 | } |
| 3b421ab3 | 12601 | |
| 721956f4 | 12602 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12603 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12604 | |
| 12605 | /* Get the name of this stub. */ | |
| 12606 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12607 | if (!stub_name) | |
| 12608 | goto error_ret_free_internal; | |
| 12609 | ||
| 12610 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12611 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12612 | if (stub_entry != NULL) |
| 12613 | { | |
| 12614 | /* The proper stub has already been created. */ | |
| 12615 | free (stub_name); | |
| 794e51c0 AM |
12616 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12617 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12618 | continue; |
| 12619 | } | |
| 12620 | ||
| 25f53a85 | 12621 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12622 | if (stub_entry == NULL) |
| 12623 | { | |
| 12624 | free (stub_name); | |
| 6cdc0ccc AM |
12625 | error_ret_free_internal: |
| 12626 | if (elf_section_data (section)->relocs == NULL) | |
| 12627 | free (internal_relocs); | |
| 12628 | error_ret_free_local: | |
| 12629 | if (local_syms != NULL | |
| 12630 | && (symtab_hdr->contents | |
| 12631 | != (unsigned char *) local_syms)) | |
| 12632 | free (local_syms); | |
| b34976b6 | 12633 | return FALSE; |
| 721956f4 AM |
12634 | } |
| 12635 | ||
| ad8e1ba5 | 12636 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12637 | if (stub_type != ppc_stub_plt_call |
| 12638 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12639 | { |
| 12640 | stub_entry->target_value = code_value; | |
| 12641 | stub_entry->target_section = code_sec; | |
| 12642 | } | |
| 12643 | else | |
| 12644 | { | |
| 12645 | stub_entry->target_value = sym_value; | |
| 12646 | stub_entry->target_section = sym_sec; | |
| 12647 | } | |
| 721956f4 | 12648 | stub_entry->h = hash; |
| e054468f | 12649 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12650 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12651 | |
| 12652 | if (stub_entry->h != NULL) | |
| 12653 | htab->stub_globals += 1; | |
| 721956f4 AM |
12654 | } |
| 12655 | ||
| 12656 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12657 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12658 | free (internal_relocs); |
| 721956f4 | 12659 | } |
| 6cdc0ccc AM |
12660 | |
| 12661 | if (local_syms != NULL | |
| 12662 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12663 | { | |
| 12664 | if (!info->keep_memory) | |
| 12665 | free (local_syms); | |
| 12666 | else | |
| 12667 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12668 | } | |
| 721956f4 AM |
12669 | } |
| 12670 | ||
| 5c3dead3 | 12671 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12672 | stub sections. */ |
| d4aaa2a0 AM |
12673 | for (group = htab->group; group != NULL; group = group->next) |
| 12674 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12675 | { |
| d4aaa2a0 AM |
12676 | asection *stub_sec = group->stub_sec; |
| 12677 | ||
| ea3d7d1c AM |
12678 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12679 | || stub_sec->rawsize < stub_sec->size) | |
| 12680 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12681 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12682 | stub_sec->size = 0; |
| 12683 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12684 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12685 | } |
| eea6121a | 12686 | |
| ba21f564 AM |
12687 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12688 | || htab->brlt->rawsize < htab->brlt->size) | |
| 12689 | htab->brlt->rawsize = htab->brlt->size; | |
| eea6121a | 12690 | htab->brlt->size = 0; |
| 84f5d08e AM |
12691 | htab->brlt->reloc_count = 0; |
| 12692 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12693 | if (htab->relbrlt != NULL) |
| eea6121a | 12694 | htab->relbrlt->size = 0; |
| 721956f4 | 12695 | |
| 63bc6f6c | 12696 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12697 | |
| a4b6fadd AM |
12698 | for (group = htab->group; group != NULL; group = group->next) |
| 12699 | if (group->needs_save_res) | |
| 12700 | group->stub_sec->size += htab->sfpr->size; | |
| 12701 | ||
| 176a0d42 AM |
12702 | if (info->emitrelocations |
| 12703 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12704 | { | |
| 12705 | htab->glink->reloc_count = 1; | |
| 12706 | htab->glink->flags |= SEC_RELOC; | |
| 12707 | } | |
| 12708 | ||
| 58d180e8 AM |
12709 | if (htab->glink_eh_frame != NULL |
| 12710 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 2d0d44d5 | 12711 | && htab->glink_eh_frame->output_section->size > 8) |
| 58d180e8 | 12712 | { |
| 2e0ce1c8 | 12713 | size_t size = 0, align = 4; |
| 58d180e8 | 12714 | |
| d4aaa2a0 AM |
12715 | for (group = htab->group; group != NULL; group = group->next) |
| 12716 | if (group->stub_sec != NULL) | |
| 12717 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 12718 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 12719 | size += (24 + align - 1) & -align; |
| 58d180e8 | 12720 | if (size != 0) |
| 2e0ce1c8 AM |
12721 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 12722 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 12723 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
12724 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12725 | htab->glink_eh_frame->size = size; | |
| 12726 | } | |
| 12727 | ||
| e7d1c40c | 12728 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
12729 | for (group = htab->group; group != NULL; group = group->next) |
| 12730 | if (group->stub_sec != NULL) | |
| 691d2e9a AM |
12731 | { |
| 12732 | int align = abs (htab->params->plt_stub_align); | |
| 12733 | group->stub_sec->size | |
| 12734 | = (group->stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 12735 | } | |
| d4aaa2a0 AM |
12736 | |
| 12737 | for (group = htab->group; group != NULL; group = group->next) | |
| 12738 | if (group->stub_sec != NULL | |
| 12739 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 12740 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 12741 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
12742 | break; |
| 12743 | ||
| d4aaa2a0 | 12744 | if (group == NULL |
| ba21f564 AM |
12745 | && (htab->brlt->rawsize == htab->brlt->size |
| 12746 | || (htab->stub_iteration > STUB_SHRINK_ITER | |
| 12747 | && htab->brlt->rawsize > htab->brlt->size)) | |
| 58d180e8 AM |
12748 | && (htab->glink_eh_frame == NULL |
| 12749 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12750 | break; |
| 12751 | ||
| 721956f4 | 12752 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12753 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12754 | } |
| 12755 | ||
| da44f4e5 AM |
12756 | if (htab->glink_eh_frame != NULL |
| 12757 | && htab->glink_eh_frame->size != 0) | |
| 12758 | { | |
| 12759 | bfd_vma val; | |
| 12760 | bfd_byte *p, *last_fde; | |
| 12761 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 12762 | struct map_stub *group; |
| da44f4e5 AM |
12763 | |
| 12764 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12765 | if (p == NULL) | |
| 12766 | return FALSE; | |
| 12767 | htab->glink_eh_frame->contents = p; | |
| 12768 | last_fde = p; | |
| 2e0ce1c8 | 12769 | align = 4; |
| da44f4e5 AM |
12770 | |
| 12771 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12772 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 12773 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 12774 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 12775 | p += last_fde_len + 4; |
| da44f4e5 | 12776 | |
| d4aaa2a0 AM |
12777 | for (group = htab->group; group != NULL; group = group->next) |
| 12778 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
12779 | { |
| 12780 | last_fde = p; | |
| d4aaa2a0 | 12781 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 12782 | /* FDE length. */ |
| 2e0ce1c8 | 12783 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12784 | p += 4; |
| 12785 | /* CIE pointer. */ | |
| 12786 | val = p - htab->glink_eh_frame->contents; | |
| 12787 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12788 | p += 4; | |
| 12789 | /* Offset to stub section, written later. */ | |
| 12790 | p += 4; | |
| 12791 | /* stub section size. */ | |
| d4aaa2a0 | 12792 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
12793 | p += 4; |
| 12794 | /* Augmentation. */ | |
| 12795 | p += 1; | |
| d4aaa2a0 AM |
12796 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 12797 | { | |
| 12798 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12799 | ||
| 12800 | /* This FDE needs more than just the default. | |
| 12801 | Describe __tls_get_addr_opt stub LR. */ | |
| 12802 | if (to_bctrl < 64) | |
| 12803 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 12804 | else if (to_bctrl < 256) | |
| 12805 | { | |
| 12806 | *p++ = DW_CFA_advance_loc1; | |
| 12807 | *p++ = to_bctrl; | |
| 12808 | } | |
| 12809 | else if (to_bctrl < 65536) | |
| 12810 | { | |
| 12811 | *p++ = DW_CFA_advance_loc2; | |
| 12812 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 12813 | p += 2; | |
| 12814 | } | |
| 12815 | else | |
| 12816 | { | |
| 12817 | *p++ = DW_CFA_advance_loc4; | |
| 12818 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 12819 | p += 4; | |
| 12820 | } | |
| 12821 | *p++ = DW_CFA_offset_extended_sf; | |
| 12822 | *p++ = 65; | |
| 12823 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 12824 | *p++ = DW_CFA_advance_loc + 4; | |
| 12825 | *p++ = DW_CFA_restore_extended; | |
| 12826 | *p++ = 65; | |
| 12827 | } | |
| da44f4e5 | 12828 | /* Pad. */ |
| d4aaa2a0 | 12829 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
12830 | } |
| 12831 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12832 | { | |
| 12833 | last_fde = p; | |
| 2e0ce1c8 | 12834 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 12835 | /* FDE length. */ |
| 2e0ce1c8 | 12836 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12837 | p += 4; |
| 12838 | /* CIE pointer. */ | |
| 12839 | val = p - htab->glink_eh_frame->contents; | |
| 12840 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12841 | p += 4; | |
| 12842 | /* Offset to .glink, written later. */ | |
| 12843 | p += 4; | |
| 12844 | /* .glink size. */ | |
| 12845 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12846 | p += 4; | |
| 12847 | /* Augmentation. */ | |
| 12848 | p += 1; | |
| 12849 | ||
| 12850 | *p++ = DW_CFA_advance_loc + 1; | |
| 12851 | *p++ = DW_CFA_register; | |
| 12852 | *p++ = 65; | |
| 9f08fa5c | 12853 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 12854 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
12855 | *p++ = DW_CFA_restore_extended; |
| 12856 | *p++ = 65; | |
| 2e0ce1c8 | 12857 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
12858 | } |
| 12859 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12860 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12861 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 12862 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 12863 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 12864 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
12865 | htab->glink_eh_frame->size = size + pad; |
| 12866 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12867 | } | |
| 12868 | ||
| d969d15f AM |
12869 | maybe_strip_output (info, htab->brlt); |
| 12870 | if (htab->glink_eh_frame != NULL) | |
| 12871 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12872 | |
| b34976b6 | 12873 | return TRUE; |
| 721956f4 AM |
12874 | } |
| 12875 | ||
| 12876 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12877 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12878 | |
| 805fc799 | 12879 | bfd_vma |
| 1c865ab2 | 12880 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12881 | { |
| 805fc799 | 12882 | asection *s; |
| a27e685f | 12883 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12884 | |
| 43417696 AM |
12885 | if (info != NULL) |
| 12886 | { | |
| 12887 | struct elf_link_hash_entry *h; | |
| 12888 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12889 | ||
| 12890 | if (is_elf_hash_table (htab) | |
| 12891 | && htab->hgot != NULL) | |
| 12892 | h = htab->hgot; | |
| 12893 | else | |
| 12894 | { | |
| 12895 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12896 | if (is_elf_hash_table (htab)) | |
| 12897 | htab->hgot = h; | |
| 12898 | } | |
| 12899 | if (h != NULL | |
| 12900 | && h->root.type == bfd_link_hash_defined | |
| 12901 | && !h->root.linker_def | |
| 12902 | && (!is_elf_hash_table (htab) | |
| 12903 | || h->def_regular)) | |
| 12904 | { | |
| 12905 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12906 | + h->root.u.def.section->output_offset | |
| 12907 | + h->root.u.def.section->output_section->vma); | |
| 12908 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12909 | return TOCstart; | |
| 12910 | } | |
| 12911 | } | |
| 12912 | ||
| 805fc799 AM |
12913 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12914 | order. The TOC starts where the first of these sections starts. */ | |
| 12915 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12916 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12917 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12918 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12919 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12920 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12921 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12922 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12923 | { |
| 12924 | /* This may happen for | |
| 12925 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12926 | .toc directive | |
| 12927 | o bad linker script | |
| 12928 | o --gc-sections and empty TOC sections | |
| 12929 | ||
| 12930 | FIXME: Warn user? */ | |
| 12931 | ||
| 12932 | /* Look for a likely section. We probably won't even be | |
| 12933 | using TOCstart. */ | |
| 12934 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12935 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12936 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12937 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12938 | break; | |
| 721956f4 | 12939 | if (s == NULL) |
| 805fc799 | 12940 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12941 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12942 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12943 | break; | |
| 721956f4 | 12944 | if (s == NULL) |
| 805fc799 | 12945 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12946 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12947 | == SEC_ALLOC) | |
| 805fc799 | 12948 | break; |
| 721956f4 | 12949 | if (s == NULL) |
| 805fc799 | 12950 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12951 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12952 | break; |
| 12953 | } | |
| 721956f4 | 12954 | |
| 805fc799 AM |
12955 | TOCstart = 0; |
| 12956 | if (s != NULL) | |
| 12957 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12958 | |
| a27e685f AM |
12959 | /* Force alignment. */ |
| 12960 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12961 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12962 | _bfd_set_gp_value (obfd, TOCstart); |
| 12963 | ||
| 810d4e75 | 12964 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12965 | { |
| 12966 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12967 | ||
| 810d4e75 AM |
12968 | if (htab != NULL) |
| 12969 | { | |
| 12970 | if (htab->elf.hgot != NULL) | |
| 12971 | { | |
| a27e685f | 12972 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12973 | htab->elf.hgot->root.u.def.section = s; |
| 12974 | } | |
| 12975 | } | |
| 12976 | else | |
| 1c865ab2 | 12977 | { |
| 810d4e75 AM |
12978 | struct bfd_link_hash_entry *bh = NULL; |
| 12979 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12980 | s, TOC_BASE_OFF - adjust, |
| 12981 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12982 | } |
| 12983 | } | |
| 805fc799 | 12984 | return TOCstart; |
| 721956f4 AM |
12985 | } |
| 12986 | ||
| a345bc8d AM |
12987 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12988 | write out any global entry stubs. */ | |
| 12989 | ||
| 12990 | static bfd_boolean | |
| 12991 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12992 | { | |
| 12993 | struct bfd_link_info *info; | |
| 12994 | struct ppc_link_hash_table *htab; | |
| 12995 | struct plt_entry *pent; | |
| 12996 | asection *s; | |
| 12997 | ||
| 12998 | if (h->root.type == bfd_link_hash_indirect) | |
| 12999 | return TRUE; | |
| 13000 | ||
| 13001 | if (!h->pointer_equality_needed) | |
| 13002 | return TRUE; | |
| 13003 | ||
| 13004 | if (h->def_regular) | |
| 13005 | return TRUE; | |
| 13006 | ||
| 13007 | info = inf; | |
| 13008 | htab = ppc_hash_table (info); | |
| 13009 | if (htab == NULL) | |
| 13010 | return FALSE; | |
| 13011 | ||
| 9e390558 | 13012 | s = htab->global_entry; |
| a345bc8d AM |
13013 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 13014 | if (pent->plt.offset != (bfd_vma) -1 | |
| 13015 | && pent->addend == 0) | |
| 13016 | { | |
| 13017 | bfd_byte *p; | |
| 13018 | asection *plt; | |
| 13019 | bfd_vma off; | |
| 13020 | ||
| a345bc8d | 13021 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 13022 | plt = htab->elf.splt; |
| a345bc8d AM |
13023 | if (!htab->elf.dynamic_sections_created |
| 13024 | || h->dynindx == -1) | |
| 33e44f2e | 13025 | plt = htab->elf.iplt; |
| a345bc8d AM |
13026 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 13027 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 13028 | ||
| 13029 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13030 | { | |
| 13031 | info->callbacks->einfo | |
| c1c8c1ef | 13032 | (_("%P: linkage table error against `%pT'\n"), |
| a345bc8d AM |
13033 | h->root.root.string); |
| 13034 | bfd_set_error (bfd_error_bad_value); | |
| 13035 | htab->stub_error = TRUE; | |
| 13036 | } | |
| 13037 | ||
| 7341d5e2 AM |
13038 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13039 | if (htab->params->emit_stub_syms) | |
| 13040 | { | |
| 13041 | size_t len = strlen (h->root.root.string); | |
| 13042 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13043 | ||
| 13044 | if (name == NULL) | |
| 13045 | return FALSE; | |
| 13046 | ||
| 13047 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13048 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13049 | if (h == NULL) | |
| 13050 | return FALSE; | |
| 13051 | if (h->root.type == bfd_link_hash_new) | |
| 13052 | { | |
| 13053 | h->root.type = bfd_link_hash_defined; | |
| 13054 | h->root.u.def.section = s; | |
| 13055 | h->root.u.def.value = p - s->contents; | |
| 13056 | h->ref_regular = 1; | |
| 13057 | h->def_regular = 1; | |
| 13058 | h->ref_regular_nonweak = 1; | |
| 13059 | h->forced_local = 1; | |
| 13060 | h->non_elf = 0; | |
| 2ec55de3 | 13061 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13062 | } |
| 13063 | } | |
| 13064 | ||
| a345bc8d AM |
13065 | if (PPC_HA (off) != 0) |
| 13066 | { | |
| 13067 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13068 | p += 4; | |
| 13069 | } | |
| 13070 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13071 | p += 4; | |
| 13072 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13073 | p += 4; | |
| 407aa07c | 13074 | bfd_put_32 (s->owner, BCTR, p); |
| a345bc8d AM |
13075 | break; |
| 13076 | } | |
| 13077 | return TRUE; | |
| 13078 | } | |
| 13079 | ||
| 721956f4 AM |
13080 | /* Build all the stubs associated with the current output file. |
| 13081 | The stubs are kept in a hash table attached to the main linker | |
| 13082 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13083 | ||
| b34976b6 | 13084 | bfd_boolean |
| e7d1c40c | 13085 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13086 | char **stats) |
| 5d1634d7 AM |
13087 | { |
| 13088 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13089 | struct map_stub *group; |
| 721956f4 | 13090 | asection *stub_sec; |
| 5d1634d7 | 13091 | bfd_byte *p; |
| e717da7e | 13092 | int stub_sec_count = 0; |
| 5d1634d7 | 13093 | |
| 4dfe6ac6 NC |
13094 | if (htab == NULL) |
| 13095 | return FALSE; | |
| 13096 | ||
| eea6121a | 13097 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13098 | for (group = htab->group; group != NULL; group = group->next) |
| 13099 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13100 | && stub_sec->size != 0) |
| e717da7e | 13101 | { |
| e7d1c40c | 13102 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13103 | if (stub_sec->contents == NULL) |
| 13104 | return FALSE; | |
| eea6121a | 13105 | stub_sec->size = 0; |
| e717da7e | 13106 | } |
| 5d1634d7 | 13107 | |
| 23eb7e01 | 13108 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13109 | { |
| 9f951329 | 13110 | unsigned int indx; |
| ad8e1ba5 | 13111 | bfd_vma plt0; |
| 9f951329 | 13112 | |
| 721956f4 | 13113 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13114 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13115 | { |
| 13116 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13117 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13118 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13119 | if (h == NULL) |
| 13120 | return FALSE; | |
| 13121 | if (h->root.type == bfd_link_hash_new) | |
| 13122 | { | |
| 13123 | h->root.type = bfd_link_hash_defined; | |
| 13124 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13125 | h->root.u.def.value = 8; |
| f5385ebf AM |
13126 | h->ref_regular = 1; |
| 13127 | h->def_regular = 1; | |
| 13128 | h->ref_regular_nonweak = 1; | |
| 13129 | h->forced_local = 1; | |
| 13130 | h->non_elf = 0; | |
| 2ec55de3 | 13131 | h->root.linker_def = 1; |
| 97b639ba AM |
13132 | } |
| 13133 | } | |
| 33e44f2e AM |
13134 | plt0 = (htab->elf.splt->output_section->vma |
| 13135 | + htab->elf.splt->output_offset | |
| 13136 | - 16); | |
| 176a0d42 AM |
13137 | if (info->emitrelocations) |
| 13138 | { | |
| 13139 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13140 | if (r == NULL) | |
| 13141 | return FALSE; | |
| 13142 | r->r_offset = (htab->glink->output_offset | |
| 13143 | + htab->glink->output_section->vma); | |
| 13144 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13145 | r->r_addend = plt0; | |
| 13146 | } | |
| 4ce794b7 | 13147 | p = htab->glink->contents; |
| 176a0d42 | 13148 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13149 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13150 | p += 8; | |
| b9e5796b AM |
13151 | if (htab->opd_abi) |
| 13152 | { | |
| 13153 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13154 | p += 4; | |
| 13155 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13156 | p += 4; | |
| 13157 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13158 | p += 4; | |
| 13159 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13160 | p += 4; | |
| 13161 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13162 | p += 4; | |
| 13163 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13164 | p += 4; | |
| 13165 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13166 | p += 4; | |
| 13167 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13168 | p += 4; | |
| 13169 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13170 | p += 4; | |
| 13171 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13172 | p += 4; | |
| 13173 | } | |
| 13174 | else | |
| 13175 | { | |
| 13176 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13177 | p += 4; | |
| 13178 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13179 | p += 4; | |
| 13180 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13181 | p += 4; | |
| f378ab09 AM |
13182 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13183 | p += 4; | |
| b9e5796b AM |
13184 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13185 | p += 4; | |
| 13186 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13187 | p += 4; | |
| 13188 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13189 | p += 4; | |
| 13190 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13191 | p += 4; | |
| 13192 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13193 | p += 4; | |
| 13194 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13195 | p += 4; | |
| 13196 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13197 | p += 4; | |
| 13198 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13199 | p += 4; | |
| 13200 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13201 | p += 4; | |
| 13202 | } | |
| 407aa07c AM |
13203 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| 13204 | p += 4; | |
| c75bc4f7 | 13205 | BFD_ASSERT (p == htab->glink->contents + GLINK_PLTRESOLVE_SIZE (htab)); |
| ad8e1ba5 | 13206 | |
| 9f951329 AM |
13207 | /* Build the .glink lazy link call stubs. */ |
| 13208 | indx = 0; | |
| 9e390558 | 13209 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 | 13210 | { |
| b9e5796b | 13211 | if (htab->opd_abi) |
| 9f951329 | 13212 | { |
| b9e5796b AM |
13213 | if (indx < 0x8000) |
| 13214 | { | |
| 13215 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13216 | p += 4; | |
| 13217 | } | |
| 13218 | else | |
| 13219 | { | |
| 13220 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13221 | p += 4; | |
| 13222 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13223 | p); | |
| 13224 | p += 4; | |
| 13225 | } | |
| 9f951329 | 13226 | } |
| 4ce794b7 | 13227 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13228 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13229 | indx++; |
| 9f951329 AM |
13230 | p += 4; |
| 13231 | } | |
| 5d1634d7 | 13232 | } |
| 5d1634d7 | 13233 | |
| 9e390558 AM |
13234 | /* Build .glink global entry stubs. */ |
| 13235 | if (htab->global_entry != NULL && htab->global_entry->size != 0) | |
| 13236 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); | |
| 13237 | ||
| 7341d5e2 | 13238 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13239 | { |
| 4ce794b7 | 13240 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13241 | htab->brlt->size); |
| 4ce794b7 | 13242 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13243 | return FALSE; |
| 721956f4 | 13244 | } |
| ee75fd95 | 13245 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13246 | { |
| 13247 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13248 | htab->relbrlt->size); |
| 63bc6f6c AM |
13249 | if (htab->relbrlt->contents == NULL) |
| 13250 | return FALSE; | |
| 13251 | } | |
| 5d1634d7 | 13252 | |
| 721956f4 AM |
13253 | /* Build the stubs as directed by the stub hash table. */ |
| 13254 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13255 | |
| a4b6fadd AM |
13256 | for (group = htab->group; group != NULL; group = group->next) |
| 13257 | if (group->needs_save_res) | |
| 7dda8d3c | 13258 | group->stub_sec->size += htab->sfpr->size; |
| a4b6fadd | 13259 | |
| aa8a7074 AM |
13260 | if (htab->relbrlt != NULL) |
| 13261 | htab->relbrlt->reloc_count = 0; | |
| 13262 | ||
| e7d1c40c | 13263 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13264 | for (group = htab->group; group != NULL; group = group->next) |
| 13265 | if ((stub_sec = group->stub_sec) != NULL) | |
| 691d2e9a AM |
13266 | { |
| 13267 | int align = abs (htab->params->plt_stub_align); | |
| 13268 | stub_sec->size = (stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 13269 | } | |
| 794e51c0 | 13270 | |
| 7dda8d3c AM |
13271 | for (group = htab->group; group != NULL; group = group->next) |
| 13272 | if (group->needs_save_res) | |
| 13273 | { | |
| 13274 | stub_sec = group->stub_sec; | |
| 13275 | memcpy (stub_sec->contents + stub_sec->size - htab->sfpr->size, | |
| 13276 | htab->sfpr->contents, htab->sfpr->size); | |
| 13277 | if (htab->params->emit_stub_syms) | |
| 13278 | { | |
| 13279 | unsigned int i; | |
| 13280 | ||
| 13281 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13282 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13283 | return FALSE; | |
| 13284 | } | |
| 13285 | } | |
| 13286 | ||
| d4aaa2a0 AM |
13287 | for (group = htab->group; group != NULL; group = group->next) |
| 13288 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13289 | { |
| 13290 | stub_sec_count += 1; | |
| c9301e31 AM |
13291 | if (stub_sec->rawsize != stub_sec->size |
| 13292 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13293 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13294 | break; |
| 13295 | } | |
| 5d1634d7 | 13296 | |
| 25516cc5 | 13297 | if (group != NULL) |
| 5d1634d7 | 13298 | { |
| b34976b6 | 13299 | htab->stub_error = TRUE; |
| cf97bcb0 | 13300 | _bfd_error_handler (_("stubs don't match calculated size")); |
| 5d1634d7 | 13301 | } |
| 721956f4 | 13302 | |
| d2a300cf AM |
13303 | if (htab->stub_error) |
| 13304 | return FALSE; | |
| 13305 | ||
| 13306 | if (stats != NULL) | |
| 13307 | { | |
| db84fff3 | 13308 | size_t len; |
| d2a300cf AM |
13309 | *stats = bfd_malloc (500); |
| 13310 | if (*stats == NULL) | |
| 13311 | return FALSE; | |
| 13312 | ||
| db84fff3 AM |
13313 | len = sprintf (*stats, |
| 13314 | ngettext ("linker stubs in %u group\n", | |
| 13315 | "linker stubs in %u groups\n", | |
| 13316 | stub_sec_count), | |
| 13317 | stub_sec_count); | |
| 13318 | sprintf (*stats + len, _(" branch %lu\n" | |
| 13319 | " toc adjust %lu\n" | |
| 13320 | " long branch %lu\n" | |
| 13321 | " long toc adj %lu\n" | |
| 13322 | " plt call %lu\n" | |
| 13323 | " plt call toc %lu\n" | |
| 13324 | " global entry %lu"), | |
| 4ce794b7 AM |
13325 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13326 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13327 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13328 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13329 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13330 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13331 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13332 | } |
| 13333 | return TRUE; | |
| 5bd4f169 AM |
13334 | } |
| 13335 | ||
| 60124e18 AM |
13336 | /* What to do when ld finds relocations against symbols defined in |
| 13337 | discarded sections. */ | |
| 13338 | ||
| 13339 | static unsigned int | |
| 13340 | ppc64_elf_action_discarded (asection *sec) | |
| 13341 | { | |
| 13342 | if (strcmp (".opd", sec->name) == 0) | |
| 13343 | return 0; | |
| 13344 | ||
| 13345 | if (strcmp (".toc", sec->name) == 0) | |
| 13346 | return 0; | |
| 13347 | ||
| bce50a28 JJ |
13348 | if (strcmp (".toc1", sec->name) == 0) |
| 13349 | return 0; | |
| 13350 | ||
| 60124e18 AM |
13351 | return _bfd_elf_default_action_discarded (sec); |
| 13352 | } | |
| 13353 | ||
| 5bd4f169 AM |
13354 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13355 | to handle the relocations for a section. | |
| 13356 | ||
| 13357 | The relocs are always passed as Rela structures; if the section | |
| 13358 | actually uses Rel structures, the r_addend field will always be | |
| 13359 | zero. | |
| 13360 | ||
| 13361 | This function is responsible for adjust the section contents as | |
| 13362 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13363 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13364 | necessary. |
| 13365 | ||
| 13366 | This function does not have to worry about setting the reloc | |
| 13367 | address or the reloc symbol index. | |
| 13368 | ||
| 13369 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13370 | ||
| 13371 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13372 | corresponding to the st_shndx field of each local symbol. | |
| 13373 | ||
| 13374 | The global hash table entry for the global symbols can be found | |
| 13375 | via elf_sym_hashes (input_bfd). | |
| 13376 | ||
| 1049f94e | 13377 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13378 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13379 | going to be the section symbol corresponding to the output | |
| 13380 | section, which means that the addend must be adjusted | |
| 13381 | accordingly. */ | |
| 13382 | ||
| b34976b6 | 13383 | static bfd_boolean |
| 4ce794b7 AM |
13384 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13385 | struct bfd_link_info *info, | |
| 13386 | bfd *input_bfd, | |
| 13387 | asection *input_section, | |
| 13388 | bfd_byte *contents, | |
| 13389 | Elf_Internal_Rela *relocs, | |
| 13390 | Elf_Internal_Sym *local_syms, | |
| 13391 | asection **local_sections) | |
| 5bd4f169 | 13392 | { |
| 65f38f15 | 13393 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13394 | Elf_Internal_Shdr *symtab_hdr; |
| 13395 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13396 | Elf_Internal_Rela *rel; |
| c316a17c | 13397 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13398 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13399 | Elf_Internal_Rela outrel; |
| 13400 | bfd_byte *loc; | |
| 411e1bfb | 13401 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13402 | bfd_vma TOCstart; |
| b34976b6 AM |
13403 | bfd_boolean ret = TRUE; |
| 13404 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13405 | /* Assume 'at' branch hints. */ |
| 13406 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13407 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13408 | |
| 65f38f15 | 13409 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13410 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13411 | ppc_howto_init (); |
| 13412 | ||
| 65f38f15 | 13413 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13414 | if (htab == NULL) |
| 13415 | return FALSE; | |
| ee75fd95 AM |
13416 | |
| 13417 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13418 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13419 | return TRUE; |
| 13420 | ||
| 0c8d6e5c | 13421 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13422 | |
| 411e1bfb | 13423 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13424 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13425 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13426 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13427 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13428 | |
| c316a17c | 13429 | rel = wrel = relocs; |
| 5bd4f169 | 13430 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13431 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13432 | { |
| 04c9666a | 13433 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13434 | bfd_vma addend; |
| 5bd4f169 AM |
13435 | bfd_reloc_status_type r; |
| 13436 | Elf_Internal_Sym *sym; | |
| 13437 | asection *sec; | |
| 039b3fef AM |
13438 | struct elf_link_hash_entry *h_elf; |
| 13439 | struct ppc_link_hash_entry *h; | |
| 13440 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13441 | const char *sym_name; |
| 0d4792f7 | 13442 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13443 | bfd_vma toc_addend; |
| f961d9dd AM |
13444 | unsigned char tls_mask, tls_gd, tls_type; |
| 13445 | unsigned char sym_type; | |
| 5bd4f169 | 13446 | bfd_vma relocation; |
| b34976b6 AM |
13447 | bfd_boolean unresolved_reloc; |
| 13448 | bfd_boolean warned; | |
| bc30df16 | 13449 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13450 | unsigned int insn; |
| e11840f9 | 13451 | unsigned int mask; |
| 721956f4 AM |
13452 | struct ppc_stub_hash_entry *stub_entry; |
| 13453 | bfd_vma max_br_offset; | |
| 13454 | bfd_vma from; | |
| c316a17c | 13455 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13456 | reloc_howto_type *howto; |
| 13457 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13458 | |
| c316a17c AM |
13459 | again: |
| 13460 | orig_rel = *rel; | |
| 13461 | ||
| 4ce794b7 | 13462 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13463 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13464 | |
| 13465 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13466 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13467 | proper TOC base to use. */ | |
| 13468 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13469 | && wrel != relocs |
| 13470 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13471 | && is_opd) |
| c316a17c | 13472 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13473 | |
| 4ce794b7 AM |
13474 | sym = NULL; |
| 13475 | sec = NULL; | |
| 039b3fef | 13476 | h_elf = NULL; |
| 4ce794b7 | 13477 | sym_name = NULL; |
| b34976b6 AM |
13478 | unresolved_reloc = FALSE; |
| 13479 | warned = FALSE; | |
| 65f38f15 | 13480 | |
| 0b13192e | 13481 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13482 | { |
| 13483 | /* It's a local symbol. */ | |
| 74f0fb50 | 13484 | struct _opd_sec_data *opd; |
| 4025353c | 13485 | |
| 5bd4f169 AM |
13486 | sym = local_syms + r_symndx; |
| 13487 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13488 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13489 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13490 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13491 | opd = get_opd_info (sec); |
| 13492 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13493 | { |
| 51aecdc5 AM |
13494 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13495 | + rel->r_addend)]; | |
| 4025353c AM |
13496 | if (adjust == -1) |
| 13497 | relocation = 0; | |
| 13498 | else | |
| 4cc603a5 AM |
13499 | { |
| 13500 | /* If this is a relocation against the opd section sym | |
| 13501 | and we have edited .opd, adjust the reloc addend so | |
| 13502 | that ld -r and ld --emit-relocs output is correct. | |
| 13503 | If it is a reloc against some other .opd symbol, | |
| 13504 | then the symbol value will be adjusted later. */ | |
| 13505 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13506 | rel->r_addend += adjust; | |
| 13507 | else | |
| 13508 | relocation += adjust; | |
| 13509 | } | |
| 1e2f5b6e | 13510 | } |
| 5bd4f169 AM |
13511 | } |
| 13512 | else | |
| 13513 | { | |
| 62d887d4 L |
13514 | bfd_boolean ignored; |
| 13515 | ||
| b2a8e766 AM |
13516 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13517 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13518 | h_elf, sec, relocation, |
| 62d887d4 | 13519 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13520 | sym_name = h_elf->root.root.string; |
| 13521 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13522 | if (sec != NULL |
| 13523 | && sec->owner == output_bfd | |
| 13524 | && strcmp (sec->name, ".opd") == 0) | |
| 13525 | { | |
| 13526 | /* This is a symbol defined in a linker script. All | |
| 13527 | such are defined in output sections, even those | |
| 13528 | defined by simple assignment from a symbol defined in | |
| 13529 | an input section. Transfer the symbol to an | |
| 13530 | appropriate input .opd section, so that a branch to | |
| 13531 | this symbol will be mapped to the location specified | |
| 13532 | by the opd entry. */ | |
| 13533 | struct bfd_link_order *lo; | |
| 13534 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13535 | if (lo->type == bfd_indirect_link_order) | |
| 13536 | { | |
| 13537 | asection *isec = lo->u.indirect.section; | |
| 13538 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13539 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13540 | + isec->size)) | |
| 13541 | { | |
| 13542 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13543 | h_elf->root.u.def.section = isec; | |
| 13544 | sec = isec; | |
| 13545 | break; | |
| 13546 | } | |
| 13547 | } | |
| 13548 | } | |
| 5bd4f169 | 13549 | } |
| 039b3fef | 13550 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13551 | |
| dbaa2011 | 13552 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13553 | { |
| 13554 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13555 | input_bfd, input_section, | |
| 13556 | contents + rel->r_offset); | |
| 13557 | wrel->r_offset = rel->r_offset; | |
| 13558 | wrel->r_info = 0; | |
| 13559 | wrel->r_addend = 0; | |
| 13560 | ||
| 13561 | /* For ld -r, remove relocations in debug sections against | |
| dcd2b8a0 | 13562 | symbols defined in discarded sections. Not done for |
| c316a17c AM |
13563 | non-debug to preserve relocs in .eh_frame which the |
| 13564 | eh_frame editing code expects to be present. */ | |
| 13565 | if (bfd_link_relocatable (info) | |
| 13566 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13567 | wrel--; | |
| 13568 | ||
| 13569 | continue; | |
| 13570 | } | |
| ab96bf03 | 13571 | |
| 0e1862bb | 13572 | if (bfd_link_relocatable (info)) |
| c316a17c | 13573 | goto copy_reloc; |
| ab96bf03 | 13574 | |
| f40da81b AM |
13575 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13576 | { | |
| 6f20ed8a | 13577 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13578 | sec = bfd_abs_section_ptr; |
| 13579 | unresolved_reloc = FALSE; | |
| 13580 | } | |
| 13581 | ||
| 951fd09b AM |
13582 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13583 | based on information we collected in tls_optimize. We edit | |
| 13584 | RELOCS so that --emit-relocs will output something sensible | |
| 13585 | for the final instruction stream. */ | |
| 13586 | tls_mask = 0; | |
| 13587 | tls_gd = 0; | |
| 0d4792f7 | 13588 | toc_symndx = 0; |
| 727fc41e AM |
13589 | if (h != NULL) |
| 13590 | tls_mask = h->tls_mask; | |
| 13591 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13592 | { |
| e054468f AM |
13593 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13594 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13595 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13596 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13597 | tls_mask = lgot_masks[r_symndx]; |
| 13598 | } | |
| 13599 | if (tls_mask == 0 | |
| 13600 | && (r_type == R_PPC64_TLS | |
| 13601 | || r_type == R_PPC64_TLSGD | |
| 13602 | || r_type == R_PPC64_TLSLD)) | |
| 13603 | { | |
| 13604 | /* Check for toc tls entries. */ | |
| f961d9dd | 13605 | unsigned char *toc_tls; |
| 0d4792f7 | 13606 | |
| 727fc41e AM |
13607 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13608 | &local_syms, rel, input_bfd)) | |
| 13609 | return FALSE; | |
| 0d4792f7 | 13610 | |
| 727fc41e AM |
13611 | if (toc_tls) |
| 13612 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13613 | } |
| 13614 | ||
| 13615 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13616 | relocs are used with non-tls syms. */ | |
| cf35638d | 13617 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13618 | && r_type != R_PPC64_NONE |
| 13619 | && (h == NULL | |
| 039b3fef AM |
13620 | || h->elf.root.type == bfd_link_hash_defined |
| 13621 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13622 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13623 | != (sym_type == STT_TLS | |
| 13624 | || (sym_type == STT_SECTION | |
| 13625 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13626 | { |
| 727fc41e AM |
13627 | if (tls_mask != 0 |
| 13628 | && (r_type == R_PPC64_TLS | |
| 13629 | || r_type == R_PPC64_TLSGD | |
| 13630 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13631 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13632 | ; | |
| 13633 | else | |
| 25f53a85 | 13634 | info->callbacks->einfo |
| 1d483afe | 13635 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13636 | /* xgettext:c-format */ |
| c1c8c1ef | 13637 | ? _("%H: %s used with TLS symbol `%pT'\n") |
| 695344c0 | 13638 | /* xgettext:c-format */ |
| c1c8c1ef | 13639 | : _("%H: %s used with non-TLS symbol `%pT'\n"), |
| 25f53a85 | 13640 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13641 | ppc64_elf_howto_table[r_type]->name, |
| 13642 | sym_name); | |
| 411e1bfb AM |
13643 | } |
| 13644 | ||
| 13645 | /* Ensure reloc mapping code below stays sane. */ | |
| 13646 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13647 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13648 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13649 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13650 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13651 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13652 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13653 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13654 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13655 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13656 | abort (); | |
| 0d4792f7 | 13657 | |
| 411e1bfb AM |
13658 | switch (r_type) |
| 13659 | { | |
| 13660 | default: | |
| 411e1bfb AM |
13661 | break; |
| 13662 | ||
| ba761f19 | 13663 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13664 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13665 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13666 | abort (); | |
| 13667 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13668 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13669 | r_type = R_PPC64_TOC16_LO; |
| 13670 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13671 | break; | |
| 13672 | ||
| 411e1bfb AM |
13673 | case R_PPC64_TOC16: |
| 13674 | case R_PPC64_TOC16_LO: | |
| 13675 | case R_PPC64_TOC16_DS: | |
| 13676 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13677 | { |
| 13678 | /* Check for toc tls entries. */ | |
| f961d9dd | 13679 | unsigned char *toc_tls; |
| 951fd09b | 13680 | int retval; |
| 411e1bfb | 13681 | |
| 3a71aa26 AM |
13682 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13683 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13684 | if (retval == 0) |
| 411e1bfb AM |
13685 | return FALSE; |
| 13686 | ||
| 13687 | if (toc_tls) | |
| 13688 | { | |
| 951fd09b | 13689 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13690 | if (r_type == R_PPC64_TOC16_DS |
| 13691 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13692 | { |
| 13693 | if (tls_mask != 0 | |
| 13694 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13695 | goto toctprel; | |
| 13696 | } | |
| 411e1bfb | 13697 | else |
| 951fd09b AM |
13698 | { |
| 13699 | /* If we found a GD reloc pair, then we might be | |
| 13700 | doing a GD->IE transition. */ | |
| 13701 | if (retval == 2) | |
| 13702 | { | |
| 13703 | tls_gd = TLS_TPRELGD; | |
| 13704 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13705 | goto tls_ldgd_opt; |
| 951fd09b AM |
13706 | } |
| 13707 | else if (retval == 3) | |
| 13708 | { | |
| 13709 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13710 | goto tls_ldgd_opt; |
| 951fd09b AM |
13711 | } |
| 13712 | } | |
| 411e1bfb AM |
13713 | } |
| 13714 | } | |
| 13715 | break; | |
| 13716 | ||
| 9d6ded02 AM |
13717 | case R_PPC64_GOT_TPREL16_HI: |
| 13718 | case R_PPC64_GOT_TPREL16_HA: | |
| 13719 | if (tls_mask != 0 | |
| 13720 | && (tls_mask & TLS_TPREL) == 0) | |
| 13721 | { | |
| 13722 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13723 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13724 | r_type = R_PPC64_NONE; |
| 13725 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13726 | } | |
| 13727 | break; | |
| 13728 | ||
| 411e1bfb AM |
13729 | case R_PPC64_GOT_TPREL16_DS: |
| 13730 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13731 | if (tls_mask != 0 |
| 13732 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13733 | { |
| 81407a69 | 13734 | toctprel: |
| 95f0d0d2 | 13735 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13736 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13737 | insn &= 31 << 21; |
| 13738 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13739 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13740 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13741 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13742 | if (toc_symndx != 0) |
| 13743 | { | |
| 13744 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13745 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13746 | /* We changed the symbol. Start over in order to |
| 13747 | get h, sym, sec etc. right. */ | |
| c316a17c | 13748 | goto again; |
| 0d4792f7 AM |
13749 | } |
| 13750 | else | |
| 13751 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13752 | } |
| 13753 | break; | |
| 13754 | ||
| 13755 | case R_PPC64_TLS: | |
| 951fd09b AM |
13756 | if (tls_mask != 0 |
| 13757 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13758 | { |
| 95f0d0d2 | 13759 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13760 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13761 | if (insn == 0) | |
| 411e1bfb | 13762 | abort (); |
| 95f0d0d2 | 13763 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13764 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13765 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13766 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13767 | r_type = R_PPC64_TPREL16_LO; |
| 13768 | if (toc_symndx != 0) | |
| 13769 | { | |
| 13770 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13771 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13772 | /* We changed the symbol. Start over in order to |
| 13773 | get h, sym, sec etc. right. */ | |
| c316a17c | 13774 | goto again; |
| 0d4792f7 AM |
13775 | } |
| 13776 | else | |
| 13777 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13778 | } |
| 13779 | break; | |
| 13780 | ||
| 411e1bfb AM |
13781 | case R_PPC64_GOT_TLSGD16_HI: |
| 13782 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13783 | tls_gd = TLS_TPRELGD; |
| 13784 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13785 | goto tls_gdld_hi; | |
| 13786 | break; | |
| 13787 | ||
| 411e1bfb AM |
13788 | case R_PPC64_GOT_TLSLD16_HI: |
| 13789 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13790 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13791 | { |
| 951fd09b AM |
13792 | tls_gdld_hi: |
| 13793 | if ((tls_mask & tls_gd) != 0) | |
| 13794 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13795 | + R_PPC64_GOT_TPREL16_DS); | |
| 13796 | else | |
| 411e1bfb | 13797 | { |
| 4fe5ca5b | 13798 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13799 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13800 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13801 | } |
| 951fd09b | 13802 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13803 | } |
| 13804 | break; | |
| 13805 | ||
| 951fd09b AM |
13806 | case R_PPC64_GOT_TLSGD16: |
| 13807 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13808 | tls_gd = TLS_TPRELGD; | |
| 13809 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13810 | goto tls_ldgd_opt; |
| 951fd09b | 13811 | break; |
| 411e1bfb | 13812 | |
| 951fd09b AM |
13813 | case R_PPC64_GOT_TLSLD16: |
| 13814 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13815 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13816 | { | |
| b9f04fe0 | 13817 | unsigned int insn1, insn2; |
| 102890f0 AM |
13818 | bfd_vma offset; |
| 13819 | ||
| 13820 | tls_ldgd_opt: | |
| 727fc41e AM |
13821 | offset = (bfd_vma) -1; |
| 13822 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13823 | __tls_get_addr calls, we must trust that the call | |
| 13824 | stays with its arg setup insns, ie. that the next | |
| 13825 | reloc is the __tls_get_addr call associated with | |
| 13826 | the current reloc. Edit both insns. */ | |
| 13827 | if (input_section->has_tls_get_addr_call | |
| 13828 | && rel + 1 < relend | |
| 13829 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13830 | htab->tls_get_addr, | |
| 13831 | htab->tls_get_addr_fd)) | |
| 13832 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13833 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13834 | need to keep the destination reg. It may be | |
| 13835 | something other than the usual r3, and moved to r3 | |
| 13836 | before the call by intervening code. */ | |
| 95f0d0d2 | 13837 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13838 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13839 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13840 | { |
| 102890f0 | 13841 | /* IE */ |
| b86ac8e3 | 13842 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13843 | insn1 |= 58 << 26; /* ld */ |
| 13844 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13845 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13846 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13847 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13848 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13849 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13850 | else |
| 102890f0 AM |
13851 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13852 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13853 | } | |
| 13854 | else | |
| 13855 | { | |
| 13856 | /* LE */ | |
| b86ac8e3 AM |
13857 | insn1 &= 0x1f << 21; |
| 13858 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13859 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13860 | if (tls_gd == 0) | |
| 951fd09b | 13861 | { |
| 102890f0 | 13862 | /* Was an LD reloc. */ |
| 1d483afe AM |
13863 | if (toc_symndx) |
| 13864 | sec = local_sections[toc_symndx]; | |
| 13865 | for (r_symndx = 0; | |
| 13866 | r_symndx < symtab_hdr->sh_info; | |
| 13867 | r_symndx++) | |
| 13868 | if (local_sections[r_symndx] == sec) | |
| 13869 | break; | |
| 13870 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13871 | r_symndx = STN_UNDEF; |
| 102890f0 | 13872 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13873 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13874 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13875 | + sec->output_offset | |
| 13876 | + sec->output_section->vma); | |
| 951fd09b | 13877 | } |
| 102890f0 | 13878 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13879 | { |
| 13880 | r_symndx = toc_symndx; | |
| 13881 | rel->r_addend = toc_addend; | |
| 13882 | } | |
| 102890f0 AM |
13883 | r_type = R_PPC64_TPREL16_HA; |
| 13884 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13885 | if (offset != (bfd_vma) -1) |
| 13886 | { | |
| 13887 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13888 | R_PPC64_TPREL16_LO); | |
| 13889 | rel[1].r_offset = offset + d_offset; | |
| 13890 | rel[1].r_addend = rel->r_addend; | |
| 13891 | } | |
| 102890f0 | 13892 | } |
| 95f0d0d2 | 13893 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13894 | contents + rel->r_offset - d_offset); |
| 727fc41e | 13895 | if (offset != (bfd_vma) -1) |
| b9f04fe0 | 13896 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13897 | if ((tls_mask & tls_gd) == 0 |
| 13898 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13899 | { | |
| 13900 | /* We changed the symbol. Start over in order | |
| 13901 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13902 | goto again; |
| 727fc41e AM |
13903 | } |
| 13904 | } | |
| 13905 | break; | |
| 13906 | ||
| 13907 | case R_PPC64_TLSGD: | |
| 675e2809 AM |
13908 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0 |
| 13909 | && rel + 1 < relend) | |
| 727fc41e | 13910 | { |
| b9f04fe0 | 13911 | unsigned int insn2; |
| 727fc41e AM |
13912 | bfd_vma offset = rel->r_offset; |
| 13913 | ||
| 13914 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13915 | { | |
| 13916 | /* IE */ | |
| 13917 | r_type = R_PPC64_NONE; | |
| 13918 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13919 | } | |
| 13920 | else | |
| 13921 | { | |
| 13922 | /* LE */ | |
| 13923 | if (toc_symndx != 0) | |
| 13924 | { | |
| 13925 | r_symndx = toc_symndx; | |
| 13926 | rel->r_addend = toc_addend; | |
| 13927 | } | |
| 13928 | r_type = R_PPC64_TPREL16_LO; | |
| 13929 | rel->r_offset = offset + d_offset; | |
| 13930 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13931 | } | |
| 13932 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13933 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13934 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13935 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13936 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13937 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13938 | goto again; |
| 411e1bfb | 13939 | } |
| 411e1bfb AM |
13940 | break; |
| 13941 | ||
| 727fc41e | 13942 | case R_PPC64_TLSLD: |
| 675e2809 AM |
13943 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0 |
| 13944 | && rel + 1 < relend) | |
| 727fc41e | 13945 | { |
| b9f04fe0 | 13946 | unsigned int insn2; |
| 727fc41e AM |
13947 | bfd_vma offset = rel->r_offset; |
| 13948 | ||
| 13949 | if (toc_symndx) | |
| 13950 | sec = local_sections[toc_symndx]; | |
| 13951 | for (r_symndx = 0; | |
| 13952 | r_symndx < symtab_hdr->sh_info; | |
| 13953 | r_symndx++) | |
| 13954 | if (local_sections[r_symndx] == sec) | |
| 13955 | break; | |
| 13956 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13957 | r_symndx = STN_UNDEF; |
| 727fc41e | 13958 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13959 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13960 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13961 | + sec->output_offset | |
| 13962 | + sec->output_section->vma); | |
| 13963 | ||
| 13964 | r_type = R_PPC64_TPREL16_LO; | |
| 13965 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13966 | rel->r_offset = offset + d_offset; | |
| 13967 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13968 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13969 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13970 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13971 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13972 | goto again; |
| 727fc41e AM |
13973 | } |
| 13974 | break; | |
| 13975 | ||
| 411e1bfb | 13976 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13977 | if (rel + 1 < relend |
| 13978 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13979 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13980 | { |
| 951fd09b AM |
13981 | if ((tls_mask & TLS_GD) == 0) |
| 13982 | { | |
| 13983 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13984 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13985 | r_type = R_PPC64_TPREL64; | |
| 13986 | else | |
| 13987 | { | |
| 4ce794b7 | 13988 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13989 | r_type = R_PPC64_NONE; |
| 13990 | } | |
| 13991 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13992 | } | |
| 13993 | } | |
| 13994 | else | |
| 13995 | { | |
| 13996 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13997 | { |
| 4ce794b7 | 13998 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13999 | r_type = R_PPC64_NONE; |
| 951fd09b | 14000 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 14001 | } |
| 411e1bfb AM |
14002 | } |
| 14003 | break; | |
| 14004 | ||
| 14005 | case R_PPC64_TPREL64: | |
| 951fd09b | 14006 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
14007 | { |
| 14008 | r_type = R_PPC64_NONE; | |
| 14009 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14010 | } | |
| 14011 | break; | |
| 52a82034 | 14012 | |
| 006589cf AM |
14013 | case R_PPC64_ENTRY: |
| 14014 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 14015 | if (!bfd_link_pic (info) | |
| 14016 | && !info->traditional_format | |
| 14017 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14018 | { | |
| 14019 | unsigned int insn1, insn2; | |
| 14020 | ||
| 14021 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14022 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14023 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14024 | && insn2 == ADD_R2_R2_R12) | |
| 14025 | { | |
| 95f0d0d2 | 14026 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14027 | LIS_R2 + PPC_HA (relocation), |
| 14028 | contents + rel->r_offset); | |
| 95f0d0d2 | 14029 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14030 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14031 | contents + rel->r_offset + 4); | |
| 14032 | } | |
| 14033 | } | |
| 14034 | else | |
| 14035 | { | |
| 14036 | relocation -= (rel->r_offset | |
| 14037 | + input_section->output_offset | |
| 14038 | + input_section->output_section->vma); | |
| 14039 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14040 | { | |
| 14041 | unsigned int insn1, insn2; | |
| 14042 | ||
| 14043 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14044 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14045 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14046 | && insn2 == ADD_R2_R2_R12) | |
| 14047 | { | |
| 95f0d0d2 | 14048 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14049 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14050 | contents + rel->r_offset); | |
| 95f0d0d2 | 14051 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14052 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14053 | contents + rel->r_offset + 4); | |
| 14054 | } | |
| 14055 | } | |
| 14056 | } | |
| 14057 | break; | |
| 14058 | ||
| 52a82034 AM |
14059 | case R_PPC64_REL16_HA: |
| 14060 | /* If we are generating a non-PIC executable, edit | |
| 14061 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14062 | . addi 2,2,.TOC.-0b@l | |
| 14063 | used by ELFv2 global entry points to set up r2, to | |
| 14064 | . lis 2,.TOC.@ha | |
| 14065 | . addi 2,2,.TOC.@l | |
| 14066 | if .TOC. is in range. */ | |
| 0e1862bb | 14067 | if (!bfd_link_pic (info) |
| 810d4e75 | 14068 | && !info->traditional_format |
| 006589cf | 14069 | && !htab->opd_abi |
| 4f038ee5 | 14070 | && rel->r_addend == d_offset |
| 52a82034 AM |
14071 | && h != NULL && &h->elf == htab->elf.hgot |
| 14072 | && rel + 1 < relend | |
| 14073 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14074 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14075 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14076 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14077 | { | |
| 14078 | unsigned int insn1, insn2; | |
| 14079 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14080 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14081 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14082 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14083 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14084 | { |
| 14085 | r_type = R_PPC64_ADDR16_HA; | |
| 14086 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14087 | rel->r_addend -= d_offset; | |
| 14088 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14089 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14090 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14091 | } |
| 14092 | } | |
| 14093 | break; | |
| 411e1bfb AM |
14094 | } |
| 14095 | ||
| 14096 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14097 | insn = 0; |
| b25116a9 AM |
14098 | max_br_offset = 1 << 25; |
| 14099 | addend = rel->r_addend; | |
| bc30df16 | 14100 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14101 | switch (r_type) |
| 5bd4f169 AM |
14102 | { |
| 14103 | default: | |
| 65f38f15 | 14104 | break; |
| 5bd4f169 | 14105 | |
| 3b421ab3 AM |
14106 | case R_PPC64_TOCSAVE: |
| 14107 | if (relocation + addend == (rel->r_offset | |
| 14108 | + input_section->output_offset | |
| 14109 | + input_section->output_section->vma) | |
| 14110 | && tocsave_find (htab, NO_INSERT, | |
| 14111 | &local_syms, rel, input_bfd)) | |
| 14112 | { | |
| 14113 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14114 | if (insn == NOP | |
| 14115 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14116 | bfd_put_32 (input_bfd, |
| 14117 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14118 | contents + rel->r_offset); |
| 14119 | } | |
| 14120 | break; | |
| 14121 | ||
| 65f38f15 AM |
14122 | /* Branch taken prediction relocations. */ |
| 14123 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14124 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14125 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14126 | /* Fall through. */ |
| 65f38f15 | 14127 | |
| 86c76c7b | 14128 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14129 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14130 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14131 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14132 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14133 | /* Fall through. */ |
| 86c76c7b | 14134 | |
| b25116a9 AM |
14135 | case R_PPC64_REL14: |
| 14136 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14137 | /* Fall through. */ |
| 5bd4f169 | 14138 | |
| 65f38f15 | 14139 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14140 | /* Calls to functions with a different TOC, such as calls to |
| 14141 | shared objects, need to alter the TOC pointer. This is | |
| 14142 | done using a linkage stub. A REL24 branching to these | |
| 14143 | linkage stubs needs to be followed by a nop, as the nop | |
| 14144 | will be replaced with an instruction to restore the TOC | |
| 14145 | base pointer. */ | |
| 8387904d | 14146 | fdh = h; |
| b31867b6 AM |
14147 | if (h != NULL |
| 14148 | && h->oh != NULL | |
| 14149 | && h->oh->is_func_descriptor) | |
| 14150 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14151 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14152 | htab); | |
| 6abec6bc | 14153 | if (stub_entry != NULL |
| ad8e1ba5 | 14154 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14155 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14156 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14157 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14158 | { |
| b25116a9 | 14159 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14160 | |
| 6e1816be AM |
14161 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14162 | && !htab->opd_abi | |
| 14163 | && htab->params->plt_localentry0 != 0 | |
| 14164 | && is_elfv2_localentry0 (&h->elf)) | |
| 14165 | { | |
| 14166 | /* The function doesn't use or change r2. */ | |
| 14167 | can_plt_call = TRUE; | |
| 14168 | } | |
| 14169 | ||
| f378ab09 | 14170 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14171 | branch and link followed by a nop. The nop is |
| 14172 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14173 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14174 | { |
| ba8ca3e7 AM |
14175 | unsigned long br; |
| 14176 | ||
| 14177 | br = bfd_get_32 (input_bfd, | |
| 14178 | contents + rel->r_offset); | |
| 14179 | if ((br & 1) != 0) | |
| 41bd81ab | 14180 | { |
| ba8ca3e7 AM |
14181 | unsigned long nop; |
| 14182 | ||
| 14183 | nop = bfd_get_32 (input_bfd, | |
| 14184 | contents + rel->r_offset + 4); | |
| 14185 | if (nop == NOP | |
| 14186 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14187 | { |
| ba8ca3e7 AM |
14188 | if (h != NULL |
| 14189 | && (h == htab->tls_get_addr_fd | |
| 14190 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14191 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14192 | { |
| 14193 | /* Special stub used, leave nop alone. */ | |
| 14194 | } | |
| 14195 | else | |
| a078d95a AM |
14196 | bfd_put_32 (input_bfd, |
| 14197 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14198 | contents + rel->r_offset + 4); |
| 14199 | can_plt_call = TRUE; | |
| a7f2871e | 14200 | } |
| 41bd81ab | 14201 | } |
| 5bd4f169 | 14202 | } |
| 721956f4 | 14203 | |
| ba8ca3e7 | 14204 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14205 | { |
| ba8ca3e7 AM |
14206 | const char *name = h->elf.root.root.string; |
| 14207 | ||
| 14208 | if (*name == '.') | |
| 14209 | ++name; | |
| 14210 | ||
| 14211 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14212 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14213 | { |
| ba8ca3e7 AM |
14214 | /* Allow crt1 branch to go via a toc adjusting |
| 14215 | stub. Other calls that never return could do | |
| 14216 | the same, if we could detect such. */ | |
| b25116a9 | 14217 | can_plt_call = TRUE; |
| 6ab189d5 | 14218 | } |
| ba8ca3e7 AM |
14219 | } |
| 14220 | ||
| 14221 | if (!can_plt_call) | |
| 14222 | { | |
| 14223 | /* g++ as of 20130507 emits self-calls without a | |
| 14224 | following nop. This is arguably wrong since we | |
| 14225 | have conflicting information. On the one hand a | |
| 14226 | global symbol and on the other a local call | |
| 14227 | sequence, but don't error for this special case. | |
| 14228 | It isn't possible to cheaply verify we have | |
| 14229 | exactly such a call. Allow all calls to the same | |
| 14230 | section. */ | |
| 14231 | asection *code_sec = sec; | |
| 14232 | ||
| 14233 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14234 | { |
| ba8ca3e7 AM |
14235 | bfd_vma off = (relocation + addend |
| 14236 | - sec->output_section->vma | |
| 14237 | - sec->output_offset); | |
| bc30df16 | 14238 | |
| ba8ca3e7 | 14239 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14240 | } |
| ba8ca3e7 AM |
14241 | if (code_sec == input_section) |
| 14242 | can_plt_call = TRUE; | |
| 14243 | } | |
| 14244 | ||
| 14245 | if (!can_plt_call) | |
| 14246 | { | |
| 4805fc55 AM |
14247 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14248 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14249 | info->callbacks->einfo | |
| 695344c0 | 14250 | /* xgettext:c-format */ |
| c1c8c1ef | 14251 | (_("%H: call to `%pT' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14252 | "recompile with -fPIC\n"), |
| 14253 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14254 | else | |
| 14255 | info->callbacks->einfo | |
| 695344c0 | 14256 | /* xgettext:c-format */ |
| c1c8c1ef | 14257 | (_("%H: call to `%pT' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14258 | "(-mcmodel=small toc adjust stub)\n"), |
| 14259 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14260 | |
| 14261 | bfd_set_error (bfd_error_bad_value); | |
| 14262 | ret = FALSE; | |
| 721956f4 AM |
14263 | } |
| 14264 | ||
| b25116a9 | 14265 | if (can_plt_call |
| 794e51c0 AM |
14266 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14267 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14268 | unresolved_reloc = FALSE; |
| 14269 | } | |
| 14270 | ||
| 6abec6bc AM |
14271 | if ((stub_entry == NULL |
| 14272 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14273 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14274 | && get_opd_info (sec) != NULL) |
| 14275 | { | |
| 14276 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14277 | bfd_vma off = (relocation + addend |
| 14278 | - sec->output_section->vma | |
| 14279 | - sec->output_offset); | |
| aef36ac1 | 14280 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14281 | if (dest != (bfd_vma) -1) |
| 14282 | { | |
| 14283 | relocation = dest; | |
| 14284 | addend = 0; | |
| bc30df16 | 14285 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14286 | } |
| 14287 | } | |
| 14288 | ||
| b25116a9 AM |
14289 | /* If the branch is out of reach we ought to have a long |
| 14290 | branch stub. */ | |
| 14291 | from = (rel->r_offset | |
| 14292 | + input_section->output_offset | |
| 14293 | + input_section->output_section->vma); | |
| 14294 | ||
| 6911b7dc AM |
14295 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14296 | ? fdh->elf.other | |
| 14297 | : sym->st_other); | |
| 14298 | ||
| 6abec6bc AM |
14299 | if (stub_entry != NULL |
| 14300 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14301 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14302 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14303 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14304 | || (relocation + addend - from + max_br_offset | |
| 14305 | < 2 * max_br_offset))) | |
| 14306 | /* Don't use the stub if this branch is in range. */ | |
| 14307 | stub_entry = NULL; | |
| b25116a9 AM |
14308 | |
| 14309 | if (stub_entry != NULL) | |
| 14310 | { | |
| 14311 | /* Munge up the value and addend so that we call the stub | |
| 14312 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14313 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14314 | ||
| 14315 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14316 | relocation += (stub_sec->output_offset | |
| 14317 | + stub_sec->output_section->vma | |
| 14318 | + stub_sec->size - htab->sfpr->size | |
| 14319 | - htab->sfpr->output_offset | |
| 14320 | - htab->sfpr->output_section->vma); | |
| 14321 | else | |
| 14322 | relocation = (stub_entry->stub_offset | |
| 14323 | + stub_sec->output_offset | |
| 14324 | + stub_sec->output_section->vma); | |
| b25116a9 | 14325 | addend = 0; |
| bc30df16 | 14326 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14327 | |
| 954b63d4 | 14328 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14329 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14330 | && (ALWAYS_EMIT_R2SAVE | |
| 14331 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14332 | && rel + 1 < relend |
| 14333 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14334 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14335 | relocation += 4; | |
| b25116a9 AM |
14336 | } |
| 14337 | ||
| 14338 | if (insn != 0) | |
| 14339 | { | |
| 794e51c0 | 14340 | if (is_isa_v2) |
| 721956f4 | 14341 | { |
| b25116a9 AM |
14342 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14343 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14344 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14345 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14346 | insn |= 0x02 << 21; | |
| 14347 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14348 | insn |= 0x08 << 21; | |
| 14349 | else | |
| 14350 | break; | |
| 14351 | } | |
| 14352 | else | |
| 14353 | { | |
| 14354 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14355 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14356 | insn ^= 0x01 << 21; |
| 721956f4 | 14357 | } |
| b25116a9 | 14358 | |
| 95f0d0d2 | 14359 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14360 | } |
| e86ce104 | 14361 | |
| 06da1e8e AM |
14362 | /* NOP out calls to undefined weak functions. |
| 14363 | We can thus call a weak function without first | |
| 14364 | checking whether the function is defined. */ | |
| b25116a9 | 14365 | else if (h != NULL |
| 039b3fef | 14366 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14367 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14368 | && r_type == R_PPC64_REL24 |
| 14369 | && relocation == 0 | |
| 4cc603a5 | 14370 | && addend == 0) |
| e86ce104 | 14371 | { |
| 95f0d0d2 | 14372 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14373 | goto copy_reloc; |
| e86ce104 | 14374 | } |
| 65f38f15 AM |
14375 | break; |
| 14376 | } | |
| 5bd4f169 | 14377 | |
| 65f38f15 | 14378 | /* Set `addend'. */ |
| 411e1bfb | 14379 | tls_type = 0; |
| 65f38f15 AM |
14380 | switch (r_type) |
| 14381 | { | |
| 14382 | default: | |
| cf97bcb0 AM |
14383 | /* xgettext:c-format */ |
| 14384 | _bfd_error_handler (_("%pB: %s unsupported"), | |
| 14385 | input_bfd, ppc64_elf_howto_table[r_type]->name); | |
| 5bd4f169 | 14386 | |
| 65f38f15 | 14387 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14388 | ret = FALSE; |
| c316a17c | 14389 | goto copy_reloc; |
| 5bd4f169 | 14390 | |
| 65f38f15 | 14391 | case R_PPC64_NONE: |
| 411e1bfb | 14392 | case R_PPC64_TLS: |
| 727fc41e AM |
14393 | case R_PPC64_TLSGD: |
| 14394 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14395 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14396 | case R_PPC64_GNU_VTINHERIT: |
| 14397 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14398 | case R_PPC64_ENTRY: |
| c316a17c | 14399 | goto copy_reloc; |
| 5bd4f169 AM |
14400 | |
| 14401 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14402 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14403 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14404 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14405 | case R_PPC64_GOT_TLSGD16: |
| 14406 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14407 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14408 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14409 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14410 | goto dogot; |
| 14411 | ||
| 14412 | case R_PPC64_GOT_TLSLD16: | |
| 14413 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14414 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14415 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14416 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14417 | goto dogot; |
| 14418 | ||
| 14419 | case R_PPC64_GOT_TPREL16_DS: | |
| 14420 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14421 | case R_PPC64_GOT_TPREL16_HI: | |
| 14422 | case R_PPC64_GOT_TPREL16_HA: | |
| 14423 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14424 | goto dogot; | |
| 14425 | ||
| 14426 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14427 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14428 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14429 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14430 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14431 | goto dogot; | |
| 14432 | ||
| 65f38f15 AM |
14433 | case R_PPC64_GOT16: |
| 14434 | case R_PPC64_GOT16_LO: | |
| 14435 | case R_PPC64_GOT16_HI: | |
| 14436 | case R_PPC64_GOT16_HA: | |
| 14437 | case R_PPC64_GOT16_DS: | |
| 14438 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14439 | dogot: |
| 5bd4f169 AM |
14440 | { |
| 14441 | /* Relocation is to the entry for this symbol in the global | |
| 14442 | offset table. */ | |
| e717da7e | 14443 | asection *got; |
| d881513a | 14444 | bfd_vma *offp; |
| 5bd4f169 | 14445 | bfd_vma off; |
| d881513a | 14446 | unsigned long indx = 0; |
| 927be08e | 14447 | struct got_entry *ent; |
| 65f38f15 | 14448 | |
| d881513a AM |
14449 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14450 | && (h == NULL | |
| f5385ebf | 14451 | || !h->elf.def_dynamic)) |
| 927be08e | 14452 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14453 | else |
| 5bd4f169 | 14454 | { |
| d881513a AM |
14455 | if (h != NULL) |
| 14456 | { | |
| f0158f44 AM |
14457 | if (!htab->elf.dynamic_sections_created |
| 14458 | || h->elf.dynindx == -1 | |
| 14459 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 14460 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
14461 | /* This is actually a static link, or it is a |
| 14462 | -Bsymbolic link and the symbol is defined | |
| 14463 | locally, or the symbol was forced to be local | |
| 14464 | because of a version file. */ | |
| 14465 | ; | |
| 14466 | else | |
| 14467 | { | |
| 039b3fef | 14468 | indx = h->elf.dynindx; |
| d881513a AM |
14469 | unresolved_reloc = FALSE; |
| 14470 | } | |
| 039b3fef | 14471 | ent = h->elf.got.glist; |
| d881513a | 14472 | } |
| 411e1bfb | 14473 | else |
| 5bd4f169 | 14474 | { |
| d881513a AM |
14475 | if (local_got_ents == NULL) |
| 14476 | abort (); | |
| 14477 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14478 | } |
| d881513a AM |
14479 | |
| 14480 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14481 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14482 | && ent->owner == input_bfd |
| d881513a AM |
14483 | && ent->tls_type == tls_type) |
| 14484 | break; | |
| 5bd4f169 | 14485 | } |
| 411e1bfb | 14486 | |
| 927be08e AM |
14487 | if (ent == NULL) |
| 14488 | abort (); | |
| 14489 | if (ent->is_indirect) | |
| 14490 | ent = ent->got.ent; | |
| 14491 | offp = &ent->got.offset; | |
| 14492 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14493 | if (got == NULL) |
| 14494 | abort (); | |
| 14495 | ||
| 411e1bfb AM |
14496 | /* The offset must always be a multiple of 8. We use the |
| 14497 | least significant bit to record whether we have already | |
| 14498 | processed this entry. */ | |
| d881513a | 14499 | off = *offp; |
| 411e1bfb AM |
14500 | if ((off & 1) != 0) |
| 14501 | off &= ~1; | |
| 5bd4f169 AM |
14502 | else |
| 14503 | { | |
| 411e1bfb AM |
14504 | /* Generate relocs for the dynamic linker, except in |
| 14505 | the case of TLSLD where we'll use one entry per | |
| 14506 | module. */ | |
| 25f23106 AM |
14507 | asection *relgot; |
| 14508 | bfd_boolean ifunc; | |
| e717da7e | 14509 | |
| d881513a | 14510 | *offp = off | 1; |
| 25f23106 AM |
14511 | relgot = NULL; |
| 14512 | ifunc = (h != NULL | |
| 14513 | ? h->elf.type == STT_GNU_IFUNC | |
| 14514 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14515 | if (ifunc) |
| 82e66161 AM |
14516 | { |
| 14517 | relgot = htab->elf.irelplt; | |
| 14518 | if (indx == 0) | |
| 14519 | htab->local_ifunc_resolver = 1; | |
| 14520 | else if (is_static_defined (&h->elf)) | |
| 14521 | htab->maybe_local_ifunc_resolver = 1; | |
| 14522 | } | |
| f0158f44 AM |
14523 | else if (indx != 0 |
| 14524 | || (bfd_link_pic (info) | |
| 14525 | && (h == NULL | |
| 21d68fcd | 14526 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 | 14527 | || (tls_type == (TLS_TLS | TLS_LD) |
| f15d0b54 AM |
14528 | && !h->elf.def_dynamic)) |
| 14529 | && !(tls_type == (TLS_TLS | TLS_TPREL) | |
| 14530 | && bfd_link_executable (info) | |
| 14531 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))) | |
| 19e08130 | 14532 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14533 | if (relgot != NULL) |
| 5bd4f169 | 14534 | { |
| e717da7e AM |
14535 | outrel.r_offset = (got->output_section->vma |
| 14536 | + got->output_offset | |
| 411e1bfb | 14537 | + off); |
| 4cc603a5 | 14538 | outrel.r_addend = addend; |
| d881513a | 14539 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14540 | { |
| 411e1bfb | 14541 | outrel.r_addend = 0; |
| e515b051 | 14542 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14543 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14544 | { | |
| e717da7e AM |
14545 | loc = relgot->contents; |
| 14546 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14547 | * sizeof (Elf64_External_Rela)); |
| 14548 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14549 | &outrel, loc); | |
| e515b051 | 14550 | outrel.r_offset += 8; |
| 4cc603a5 | 14551 | outrel.r_addend = addend; |
| d881513a AM |
14552 | outrel.r_info |
| 14553 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14554 | } |
| 411e1bfb | 14555 | } |
| 951fd09b | 14556 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14557 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14558 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14559 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14560 | else if (indx != 0) |
| 14561 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14562 | else | |
| 81407a69 | 14563 | { |
| 25f23106 AM |
14564 | if (ifunc) |
| 14565 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14566 | else | |
| 14567 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14568 | |
| 14569 | /* Write the .got section contents for the sake | |
| 14570 | of prelink. */ | |
| e717da7e | 14571 | loc = got->contents + off; |
| 23fbd6fa JJ |
14572 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14573 | loc); | |
| 81407a69 | 14574 | } |
| 81407a69 AM |
14575 | |
| 14576 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14577 | { |
| 14578 | outrel.r_addend += relocation; | |
| 14579 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14580 | { |
| 14581 | if (htab->elf.tls_sec == NULL) | |
| 14582 | outrel.r_addend = 0; | |
| 14583 | else | |
| 14584 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14585 | } | |
| e515b051 | 14586 | } |
| e717da7e AM |
14587 | loc = relgot->contents; |
| 14588 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14589 | * sizeof (Elf64_External_Rela)); |
| 14590 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14591 | } | |
| 14592 | ||
| ad8e1ba5 | 14593 | /* Init the .got section contents here if we're not |
| 81407a69 | 14594 | emitting a reloc. */ |
| d881513a | 14595 | else |
| 411e1bfb | 14596 | { |
| 4cc603a5 | 14597 | relocation += addend; |
| f0158f44 | 14598 | if (tls_type != 0) |
| 411e1bfb | 14599 | { |
| 989f9879 AM |
14600 | if (htab->elf.tls_sec == NULL) |
| 14601 | relocation = 0; | |
| 14602 | else | |
| 14603 | { | |
| f0158f44 AM |
14604 | if (tls_type & TLS_LD) |
| 14605 | relocation = 0; | |
| 14606 | else | |
| 14607 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 14608 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
14609 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14610 | } | |
| 5bd4f169 | 14611 | |
| f0158f44 | 14612 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14613 | { |
| 14614 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14615 | got->contents + off + 8); |
| 676ee2b5 | 14616 | relocation = 1; |
| 7b609f53 | 14617 | } |
| 411e1bfb AM |
14618 | } |
| 14619 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14620 | got->contents + off); |
| 5bd4f169 AM |
14621 | } |
| 14622 | } | |
| 14623 | ||
| 65f38f15 AM |
14624 | if (off >= (bfd_vma) -2) |
| 14625 | abort (); | |
| 14626 | ||
| bf102f86 | 14627 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14628 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14629 | } |
| 65f38f15 AM |
14630 | break; |
| 14631 | ||
| 14632 | case R_PPC64_PLT16_HA: | |
| 14633 | case R_PPC64_PLT16_HI: | |
| 14634 | case R_PPC64_PLT16_LO: | |
| 14635 | case R_PPC64_PLT32: | |
| 14636 | case R_PPC64_PLT64: | |
| 14637 | /* Relocation is to the entry for this symbol in the | |
| 14638 | procedure linkage table. */ | |
| cbf95972 AM |
14639 | { |
| 14640 | struct plt_entry **plt_list = NULL; | |
| 14641 | if (h != NULL) | |
| 14642 | plt_list = &h->elf.plt.plist; | |
| 14643 | else if (local_got_ents != NULL) | |
| 14644 | { | |
| 14645 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14646 | (local_got_ents + symtab_hdr->sh_info); | |
| 14647 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14648 | (local_plt + symtab_hdr->sh_info); | |
| 14649 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14650 | plt_list = local_plt + r_symndx; | |
| 14651 | } | |
| 14652 | if (plt_list) | |
| 14653 | { | |
| 14654 | struct plt_entry *ent; | |
| 65f38f15 | 14655 | |
| cbf95972 AM |
14656 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14657 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14658 | && ent->addend == orig_rel.r_addend) | |
| 14659 | { | |
| 14660 | asection *plt; | |
| 14661 | ||
| 14662 | plt = htab->elf.splt; | |
| 14663 | if (!htab->elf.dynamic_sections_created | |
| 14664 | || h == NULL | |
| 14665 | || h->elf.dynindx == -1) | |
| 14666 | plt = htab->elf.iplt; | |
| 14667 | relocation = (plt->output_section->vma | |
| 14668 | + plt->output_offset | |
| 14669 | + ent->plt.offset); | |
| 14670 | addend = 0; | |
| 14671 | unresolved_reloc = FALSE; | |
| 14672 | break; | |
| 14673 | } | |
| 14674 | } | |
| 14675 | } | |
| 65f38f15 | 14676 | break; |
| 5bd4f169 | 14677 | |
| 0b13192e AM |
14678 | case R_PPC64_TOC: |
| 14679 | /* Relocation value is TOC base. */ | |
| 14680 | relocation = TOCstart; | |
| cf35638d | 14681 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14682 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14683 | else if (unresolved_reloc) |
| 14684 | ; | |
| 6f20ed8a AM |
14685 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14686 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14687 | else |
| 14688 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14689 | goto dodyn; |
| 0b13192e | 14690 | |
| 5bd4f169 AM |
14691 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14692 | which is the address of the start of the TOC plus 0x8000. | |
| 14693 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14694 | in this order. */ | |
| 65f38f15 AM |
14695 | case R_PPC64_TOC16: |
| 14696 | case R_PPC64_TOC16_LO: | |
| 14697 | case R_PPC64_TOC16_HI: | |
| 14698 | case R_PPC64_TOC16_DS: | |
| 14699 | case R_PPC64_TOC16_LO_DS: | |
| 14700 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14701 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14702 | break; |
| 14703 | ||
| 14704 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14705 | case R_PPC64_SECTOFF: |
| 14706 | case R_PPC64_SECTOFF_LO: | |
| 14707 | case R_PPC64_SECTOFF_HI: | |
| 14708 | case R_PPC64_SECTOFF_DS: | |
| 14709 | case R_PPC64_SECTOFF_LO_DS: | |
| 14710 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14711 | if (sec != NULL) |
| 65f38f15 | 14712 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14713 | break; |
| 14714 | ||
| 25f23106 AM |
14715 | case R_PPC64_REL16: |
| 14716 | case R_PPC64_REL16_LO: | |
| 14717 | case R_PPC64_REL16_HI: | |
| 14718 | case R_PPC64_REL16_HA: | |
| a680de9a | 14719 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14720 | break; |
| 14721 | ||
| 721956f4 AM |
14722 | case R_PPC64_REL14: |
| 14723 | case R_PPC64_REL14_BRNTAKEN: | |
| 14724 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14725 | case R_PPC64_REL24: |
| 14726 | break; | |
| 14727 | ||
| 411e1bfb AM |
14728 | case R_PPC64_TPREL16: |
| 14729 | case R_PPC64_TPREL16_LO: | |
| 14730 | case R_PPC64_TPREL16_HI: | |
| 14731 | case R_PPC64_TPREL16_HA: | |
| 14732 | case R_PPC64_TPREL16_DS: | |
| 14733 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14734 | case R_PPC64_TPREL16_HIGH: |
| 14735 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14736 | case R_PPC64_TPREL16_HIGHER: |
| 14737 | case R_PPC64_TPREL16_HIGHERA: | |
| 14738 | case R_PPC64_TPREL16_HIGHEST: | |
| 14739 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14740 | if (h != NULL |
| 14741 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14742 | && h->elf.dynindx == -1) | |
| 14743 | { | |
| 14744 | /* Make this relocation against an undefined weak symbol | |
| 14745 | resolve to zero. This is really just a tweak, since | |
| 14746 | code using weak externs ought to check that they are | |
| 14747 | defined before using them. */ | |
| 14748 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14749 | ||
| 95f0d0d2 | 14750 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14751 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14752 | if (insn != 0) | |
| 95f0d0d2 | 14753 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14754 | break; |
| 14755 | } | |
| 989f9879 AM |
14756 | if (htab->elf.tls_sec != NULL) |
| 14757 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
14758 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14759 | libs or with non-local symbols as that will result in | |
| 14760 | DT_TEXTREL being set, but support them anyway. */ | |
| 14761 | goto dodyn; | |
| 411e1bfb AM |
14762 | |
| 14763 | case R_PPC64_DTPREL16: | |
| 14764 | case R_PPC64_DTPREL16_LO: | |
| 14765 | case R_PPC64_DTPREL16_HI: | |
| 14766 | case R_PPC64_DTPREL16_HA: | |
| 14767 | case R_PPC64_DTPREL16_DS: | |
| 14768 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14769 | case R_PPC64_DTPREL16_HIGH: |
| 14770 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14771 | case R_PPC64_DTPREL16_HIGHER: |
| 14772 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14773 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14774 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14775 | if (htab->elf.tls_sec != NULL) |
| 14776 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14777 | break; |
| 14778 | ||
| 45965137 AM |
14779 | case R_PPC64_ADDR64_LOCAL: |
| 14780 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14781 | ? h->elf.other | |
| 14782 | : sym->st_other); | |
| 14783 | break; | |
| 14784 | ||
| e515b051 AM |
14785 | case R_PPC64_DTPMOD64: |
| 14786 | relocation = 1; | |
| 14787 | addend = 0; | |
| 14788 | goto dodyn; | |
| 14789 | ||
| 411e1bfb | 14790 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14791 | if (htab->elf.tls_sec != NULL) |
| 14792 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14793 | goto dodyn; |
| 14794 | ||
| 14795 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14796 | if (htab->elf.tls_sec != NULL) |
| 14797 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14798 | /* Fall through. */ |
| 411e1bfb | 14799 | |
| 65f38f15 AM |
14800 | /* Relocations that may need to be propagated if this is a |
| 14801 | dynamic object. */ | |
| 04c9666a | 14802 | case R_PPC64_REL30: |
| 65f38f15 AM |
14803 | case R_PPC64_REL32: |
| 14804 | case R_PPC64_REL64: | |
| 14805 | case R_PPC64_ADDR14: | |
| 14806 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14807 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14808 | case R_PPC64_ADDR16: | |
| 14809 | case R_PPC64_ADDR16_DS: | |
| 14810 | case R_PPC64_ADDR16_HA: | |
| 14811 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14812 | case R_PPC64_ADDR16_HIGH: |
| 14813 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14814 | case R_PPC64_ADDR16_HIGHER: |
| 14815 | case R_PPC64_ADDR16_HIGHERA: | |
| 14816 | case R_PPC64_ADDR16_HIGHEST: | |
| 14817 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14818 | case R_PPC64_ADDR16_LO: | |
| 14819 | case R_PPC64_ADDR16_LO_DS: | |
| 14820 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14821 | case R_PPC64_ADDR32: |
| 14822 | case R_PPC64_ADDR64: | |
| 14823 | case R_PPC64_UADDR16: | |
| 14824 | case R_PPC64_UADDR32: | |
| 14825 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14826 | dodyn: |
| 5d1634d7 | 14827 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14828 | break; |
| 14829 | ||
| 41bd81ab AM |
14830 | if (NO_OPD_RELOCS && is_opd) |
| 14831 | break; | |
| 14832 | ||
| 8a9e8e72 | 14833 | if (bfd_link_pic (info) |
| b1b07054 AM |
14834 | ? ((h == NULL |
| 14835 | || h->dyn_relocs != NULL) | |
| 14836 | && ((h != NULL && pc_dynrelocs (h)) | |
| 14837 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
14838 | : (h != NULL |
| 14839 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14840 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14841 | { |
| b34976b6 | 14842 | bfd_boolean skip, relocate; |
| 65f38f15 | 14843 | asection *sreloc; |
| 1cf1f670 | 14844 | bfd_vma out_off; |
| 82e66161 | 14845 | long indx = 0; |
| 65f38f15 AM |
14846 | |
| 14847 | /* When generating a dynamic object, these relocations | |
| 14848 | are copied into the output file to be resolved at run | |
| 14849 | time. */ | |
| 14850 | ||
| b34976b6 AM |
14851 | skip = FALSE; |
| 14852 | relocate = FALSE; | |
| 65f38f15 | 14853 | |
| 1cf1f670 AM |
14854 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14855 | input_section, rel->r_offset); | |
| 14856 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14857 | skip = TRUE; |
| 1cf1f670 | 14858 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14859 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14860 | out_off += (input_section->output_section->vma |
| 14861 | + input_section->output_offset); | |
| 14862 | outrel.r_offset = out_off; | |
| 411e1bfb | 14863 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14864 | |
| 1cf1f670 AM |
14865 | /* Optimize unaligned reloc use. */ |
| 14866 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14867 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14868 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14869 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14870 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14871 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14872 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14873 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14874 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14875 | ||
| 65f38f15 | 14876 | if (skip) |
| 0bb2d96a | 14877 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14878 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14879 | && !is_opd |
| 14880 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 14881 | { |
| 82e66161 AM |
14882 | indx = h->elf.dynindx; |
| 14883 | BFD_ASSERT (indx != -1); | |
| 14884 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 14885 | } |
| 65f38f15 AM |
14886 | else |
| 14887 | { | |
| 41bd81ab AM |
14888 | /* This symbol is local, or marked to become local, |
| 14889 | or this is an opd section reloc which must point | |
| 14890 | at a local function. */ | |
| 65f38f15 | 14891 | outrel.r_addend += relocation; |
| e86ce104 | 14892 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14893 | { |
| 3fad3c7c | 14894 | if (is_opd && h != NULL) |
| afbe61cf AM |
14895 | { |
| 14896 | /* Lie about opd entries. This case occurs | |
| 14897 | when building shared libraries and we | |
| 14898 | reference a function in another shared | |
| 3fad3c7c AM |
14899 | lib. The same thing happens for a weak |
| 14900 | definition in an application that's | |
| 14901 | overridden by a strong definition in a | |
| 14902 | shared lib. (I believe this is a generic | |
| 14903 | bug in binutils handling of weak syms.) | |
| 14904 | In these cases we won't use the opd | |
| 1e2f5b6e | 14905 | entry in this lib. */ |
| b34976b6 | 14906 | unresolved_reloc = FALSE; |
| afbe61cf | 14907 | } |
| 25f23106 AM |
14908 | if (!is_opd |
| 14909 | && r_type == R_PPC64_ADDR64 | |
| 14910 | && (h != NULL | |
| 14911 | ? h->elf.type == STT_GNU_IFUNC | |
| 14912 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14913 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14914 | else | |
| 14915 | { | |
| 14916 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14917 | |
| 25f23106 AM |
14918 | /* We need to relocate .opd contents for ld.so. |
| 14919 | Prelink also wants simple and consistent rules | |
| 14920 | for relocs. This make all RELATIVE relocs have | |
| 14921 | *r_offset equal to r_addend. */ | |
| 14922 | relocate = TRUE; | |
| 14923 | } | |
| 65f38f15 AM |
14924 | } |
| 14925 | else | |
| 14926 | { | |
| 25f23106 AM |
14927 | if (h != NULL |
| 14928 | ? h->elf.type == STT_GNU_IFUNC | |
| 14929 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14930 | { | |
| 25f53a85 | 14931 | info->callbacks->einfo |
| 695344c0 | 14932 | /* xgettext:c-format */ |
| 174d0a74 | 14933 | (_("%H: %s for indirect " |
| c1c8c1ef | 14934 | "function `%pT' unsupported\n"), |
| 25f53a85 | 14935 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14936 | ppc64_elf_howto_table[r_type]->name, |
| 14937 | sym_name); | |
| 14938 | ret = FALSE; | |
| 14939 | } | |
| cf35638d | 14940 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14941 | ; |
| 14942 | else if (sec == NULL || sec->owner == NULL) | |
| 14943 | { | |
| 14944 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14945 | return FALSE; |
| 65f38f15 AM |
14946 | } |
| 14947 | else | |
| 14948 | { | |
| 14949 | asection *osec; | |
| 14950 | ||
| 14951 | osec = sec->output_section; | |
| 14952 | indx = elf_section_data (osec)->dynindx; | |
| 14953 | ||
| 74541ad4 AM |
14954 | if (indx == 0) |
| 14955 | { | |
| 14956 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14957 | && htab->elf.data_index_section != NULL) | |
| 14958 | osec = htab->elf.data_index_section; | |
| 14959 | else | |
| 14960 | osec = htab->elf.text_index_section; | |
| 14961 | indx = elf_section_data (osec)->dynindx; | |
| 14962 | } | |
| 14963 | BFD_ASSERT (indx != 0); | |
| 14964 | ||
| 65f38f15 AM |
14965 | /* We are turning this relocation into one |
| 14966 | against a section symbol, so subtract out | |
| 14967 | the output section's address but not the | |
| 14968 | offset of the input section in the output | |
| 14969 | section. */ | |
| 14970 | outrel.r_addend -= osec->vma; | |
| 14971 | } | |
| 14972 | ||
| 14973 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14974 | } | |
| 14975 | } | |
| 14976 | ||
| 14977 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14978 | if (h != NULL |
| 14979 | ? h->elf.type == STT_GNU_IFUNC | |
| 14980 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
14981 | { |
| 14982 | sreloc = htab->elf.irelplt; | |
| 14983 | if (indx == 0) | |
| 14984 | htab->local_ifunc_resolver = 1; | |
| 14985 | else if (is_static_defined (&h->elf)) | |
| 14986 | htab->maybe_local_ifunc_resolver = 1; | |
| 14987 | } | |
| 65f38f15 AM |
14988 | if (sreloc == NULL) |
| 14989 | abort (); | |
| 14990 | ||
| dfbb6ac9 AM |
14991 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14992 | >= sreloc->size) | |
| 14993 | abort (); | |
| 947216bf AM |
14994 | loc = sreloc->contents; |
| 14995 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14996 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14997 | ||
| 14998 | /* If this reloc is against an external symbol, it will | |
| 14999 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
15000 | anything now. However, for the sake of prelink ensure |
| 15001 | that the section contents are a known value. */ | |
| 65f38f15 | 15002 | if (! relocate) |
| 81407a69 AM |
15003 | { |
| 15004 | unresolved_reloc = FALSE; | |
| 15005 | /* The value chosen here is quite arbitrary as ld.so | |
| 15006 | ignores section contents except for the special | |
| 15007 | case of .opd where the contents might be accessed | |
| 15008 | before relocation. Choose zero, as that won't | |
| 15009 | cause reloc overflow. */ | |
| 15010 | relocation = 0; | |
| 15011 | addend = 0; | |
| 15012 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 15013 | to improve backward compatibility with older | |
| 15014 | versions of ld. */ | |
| 15015 | if (r_type == R_PPC64_ADDR64) | |
| 15016 | addend = outrel.r_addend; | |
| 15017 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 15018 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 15019 | addend = outrel.r_offset; |
| 81407a69 | 15020 | } |
| 65f38f15 | 15021 | } |
| 5bd4f169 AM |
15022 | break; |
| 15023 | ||
| 65f38f15 AM |
15024 | case R_PPC64_COPY: |
| 15025 | case R_PPC64_GLOB_DAT: | |
| 15026 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15027 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15028 | case R_PPC64_RELATIVE: |
| 15029 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15030 | files. */ | |
| ae9a127f | 15031 | /* Fall through. */ |
| 65f38f15 AM |
15032 | |
| 15033 | case R_PPC64_PLTGOT16: | |
| 15034 | case R_PPC64_PLTGOT16_DS: | |
| 15035 | case R_PPC64_PLTGOT16_HA: | |
| 15036 | case R_PPC64_PLTGOT16_HI: | |
| 15037 | case R_PPC64_PLTGOT16_LO: | |
| 15038 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15039 | case R_PPC64_PLTREL32: | |
| 15040 | case R_PPC64_PLTREL64: | |
| 15041 | /* These ones haven't been implemented yet. */ | |
| 15042 | ||
| 25f53a85 | 15043 | info->callbacks->einfo |
| 695344c0 | 15044 | /* xgettext:c-format */ |
| c1c8c1ef | 15045 | (_("%P: %pB: %s is not supported for `%pT'\n"), |
| d003868e | 15046 | input_bfd, |
| 4ce794b7 | 15047 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15048 | |
| 15049 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15050 | ret = FALSE; |
| c316a17c | 15051 | goto copy_reloc; |
| 65f38f15 | 15052 | } |
| 5bd4f169 | 15053 | |
| 67f0cbdb AM |
15054 | /* Multi-instruction sequences that access the TOC can be |
| 15055 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 07d6d2b8 | 15056 | to nop; addi rb,r2,x; */ |
| 67f0cbdb AM |
15057 | switch (r_type) |
| 15058 | { | |
| 15059 | default: | |
| 15060 | break; | |
| 15061 | ||
| 15062 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15063 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15064 | case R_PPC64_GOT_TPREL16_HI: | |
| 15065 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15066 | case R_PPC64_GOT16_HI: | |
| 15067 | case R_PPC64_TOC16_HI: | |
| 15068 | /* These relocs would only be useful if building up an | |
| 15069 | offset to later add to r2, perhaps in an indexed | |
| 15070 | addressing mode instruction. Don't try to optimize. | |
| 15071 | Unfortunately, the possibility of someone building up an | |
| 15072 | offset like this or even with the HA relocs, means that | |
| 15073 | we need to check the high insn when optimizing the low | |
| 15074 | insn. */ | |
| 15075 | break; | |
| 15076 | ||
| 15077 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15078 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15079 | case R_PPC64_GOT_TPREL16_HA: | |
| 15080 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15081 | case R_PPC64_GOT16_HA: | |
| 15082 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15083 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15084 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15085 | { |
| 15086 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15087 | bfd_put_32 (input_bfd, NOP, p); | |
| d830549d | 15088 | goto copy_reloc; |
| 98528052 | 15089 | } |
| 67f0cbdb AM |
15090 | break; |
| 15091 | ||
| 15092 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15093 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15094 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15095 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15096 | case R_PPC64_GOT16_LO: | |
| 15097 | case R_PPC64_GOT16_LO_DS: | |
| 15098 | case R_PPC64_TOC16_LO: | |
| 15099 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15100 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15101 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15102 | { |
| 15103 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15104 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15105 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15106 | { | |
| 15107 | /* Transform addic to addi when we change reg. */ | |
| 15108 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15109 | insn |= (14u << 26) | (2 << 16); | |
| 15110 | } | |
| 15111 | else | |
| 67f0cbdb | 15112 | { |
| 98528052 AM |
15113 | insn &= ~(0x1f << 16); |
| 15114 | insn |= 2 << 16; | |
| 67f0cbdb | 15115 | } |
| 560c8763 | 15116 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15117 | } |
| 15118 | break; | |
| 9a23f96e AM |
15119 | |
| 15120 | case R_PPC64_TPREL16_HA: | |
| 15121 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15122 | { | |
| 15123 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15124 | insn = bfd_get_32 (input_bfd, p); | |
| 15125 | if ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 15126 | != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */) | |
| 15127 | /* xgettext:c-format */ | |
| 15128 | info->callbacks->minfo | |
| 15129 | (_("%H: warning: %s unexpected insn %#x.\n"), | |
| d830549d AM |
15130 | input_bfd, input_section, rel->r_offset, |
| 15131 | ppc64_elf_howto_table[r_type]->name, insn); | |
| 9a23f96e | 15132 | else |
| d830549d AM |
15133 | { |
| 15134 | bfd_put_32 (input_bfd, NOP, p); | |
| 15135 | goto copy_reloc; | |
| 15136 | } | |
| 9a23f96e AM |
15137 | } |
| 15138 | break; | |
| 15139 | ||
| 15140 | case R_PPC64_TPREL16_LO: | |
| 15141 | case R_PPC64_TPREL16_LO_DS: | |
| 15142 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15143 | { | |
| 15144 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15145 | insn = bfd_get_32 (input_bfd, p); | |
| 15146 | insn &= ~(0x1f << 16); | |
| 15147 | insn |= 13 << 16; | |
| 15148 | bfd_put_32 (input_bfd, insn, p); | |
| 15149 | } | |
| 15150 | break; | |
| 67f0cbdb AM |
15151 | } |
| 15152 | ||
| 65f38f15 AM |
15153 | /* Do any further special processing. */ |
| 15154 | switch (r_type) | |
| 15155 | { | |
| 15156 | default: | |
| 15157 | break; | |
| 15158 | ||
| 25f23106 | 15159 | case R_PPC64_REL16_HA: |
| a680de9a | 15160 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15161 | case R_PPC64_ADDR16_HA: |
| 15162 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15163 | case R_PPC64_ADDR16_HIGHERA: |
| 15164 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15165 | case R_PPC64_TOC16_HA: |
| 15166 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15167 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15168 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15169 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15170 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15171 | case R_PPC64_DTPREL16_HA: |
| 15172 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15173 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15174 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15175 | /* It's just possible that this symbol is a weak symbol |
| 15176 | that's not actually defined anywhere. In that case, | |
| 15177 | 'sec' would be NULL, and we should leave the symbol | |
| 15178 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15179 | if (sec == NULL) |
| 15180 | break; | |
| 1a0670f3 | 15181 | /* Fall through. */ |
| 5c5f6e17 AM |
15182 | |
| 15183 | case R_PPC64_GOT16_HA: | |
| 15184 | case R_PPC64_PLTGOT16_HA: | |
| 15185 | case R_PPC64_PLT16_HA: | |
| 15186 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15187 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15188 | case R_PPC64_GOT_TPREL16_HA: | |
| 15189 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15190 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15191 | Bits 0:15 are not used. */ | |
| 15192 | addend += 0x8000; | |
| 65f38f15 AM |
15193 | break; |
| 15194 | ||
| 15195 | case R_PPC64_ADDR16_DS: | |
| 15196 | case R_PPC64_ADDR16_LO_DS: | |
| 15197 | case R_PPC64_GOT16_DS: | |
| 15198 | case R_PPC64_GOT16_LO_DS: | |
| 15199 | case R_PPC64_PLT16_LO_DS: | |
| 15200 | case R_PPC64_SECTOFF_DS: | |
| 15201 | case R_PPC64_SECTOFF_LO_DS: | |
| 15202 | case R_PPC64_TOC16_DS: | |
| 15203 | case R_PPC64_TOC16_LO_DS: | |
| 15204 | case R_PPC64_PLTGOT16_DS: | |
| 15205 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15206 | case R_PPC64_GOT_TPREL16_DS: |
| 15207 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15208 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15209 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15210 | case R_PPC64_TPREL16_DS: | |
| 15211 | case R_PPC64_TPREL16_LO_DS: | |
| 15212 | case R_PPC64_DTPREL16_DS: | |
| 15213 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15214 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15215 | mask = 3; | |
| a680de9a PB |
15216 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15217 | the value must be a multiple of 16. This is somewhat of | |
| 15218 | a hack, but the "correct" way to do this by defining _DQ | |
| 15219 | forms of all the _DS relocs bloats all reloc switches in | |
| 15220 | this file. It doesn't make much sense to use these | |
| 15221 | relocs in data, so testing the insn should be safe. */ | |
| 15222 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15223 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15224 | mask = 15; |
| a680de9a PB |
15225 | relocation += addend; |
| 15226 | addend = insn & (mask ^ 3); | |
| 15227 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15228 | { |
| a680de9a | 15229 | relocation ^= relocation & mask; |
| 25f53a85 | 15230 | info->callbacks->einfo |
| 695344c0 | 15231 | /* xgettext:c-format */ |
| 174d0a74 | 15232 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15233 | input_bfd, input_section, rel->r_offset, |
| d830549d | 15234 | ppc64_elf_howto_table[r_type]->name, |
| adadcc0c | 15235 | mask + 1); |
| 65f38f15 | 15236 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15237 | ret = FALSE; |
| c316a17c | 15238 | goto copy_reloc; |
| 65f38f15 AM |
15239 | } |
| 15240 | break; | |
| 5bd4f169 AM |
15241 | } |
| 15242 | ||
| 239e1f3a AM |
15243 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15244 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15245 | not process them. */ | |
| d830549d | 15246 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 | 15247 | if (unresolved_reloc |
| 239e1f3a | 15248 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15249 | && h->elf.def_dynamic) |
| 15250 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15251 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15252 | { |
| 25f53a85 | 15253 | info->callbacks->einfo |
| 695344c0 | 15254 | /* xgettext:c-format */ |
| c1c8c1ef | 15255 | (_("%H: unresolvable %s against `%pT'\n"), |
| 25f53a85 | 15256 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15257 | howto->name, |
| 039b3fef | 15258 | h->elf.root.root.string); |
| b34976b6 | 15259 | ret = FALSE; |
| 9c07fe7c | 15260 | } |
| 5bd4f169 | 15261 | |
| b80eed39 AM |
15262 | /* 16-bit fields in insns mostly have signed values, but a |
| 15263 | few insns have 16-bit unsigned values. Really, we should | |
| 15264 | have different reloc types. */ | |
| 15265 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15266 | && howto->dst_mask == 0xffff | |
| 15267 | && (input_section->flags & SEC_CODE) != 0) | |
| 15268 | { | |
| 15269 | enum complain_overflow complain = complain_overflow_signed; | |
| 15270 | ||
| 15271 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15272 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15273 | complain = complain_overflow_bitfield; | |
| 15274 | else if (howto->rightshift == 0 | |
| 15275 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15276 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15277 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15278 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15279 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15280 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15281 | complain = complain_overflow_unsigned; |
| 15282 | if (howto->complain_on_overflow != complain) | |
| 15283 | { | |
| 15284 | alt_howto = *howto; | |
| 15285 | alt_howto.complain_on_overflow = complain; | |
| 15286 | howto = &alt_howto; | |
| 15287 | } | |
| 15288 | } | |
| 15289 | ||
| a680de9a PB |
15290 | if (r_type == R_PPC64_REL16DX_HA) |
| 15291 | { | |
| 15292 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15293 | if (rel->r_offset + 4 > input_section->size) | |
| 15294 | r = bfd_reloc_outofrange; | |
| 15295 | else | |
| 15296 | { | |
| 15297 | relocation += addend; | |
| 15298 | relocation -= (rel->r_offset | |
| 15299 | + input_section->output_offset | |
| 15300 | + input_section->output_section->vma); | |
| 3de43e7b | 15301 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15302 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15303 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15304 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15305 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15306 | r = bfd_reloc_ok; | |
| 3de43e7b | 15307 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15308 | r = bfd_reloc_overflow; |
| 15309 | } | |
| 15310 | } | |
| 15311 | else | |
| 15312 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15313 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15314 | |
| ef60b7ff | 15315 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15316 | { |
| bc30df16 | 15317 | char *more_info = NULL; |
| b80eed39 | 15318 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15319 | |
| 15320 | if (reloc_dest != DEST_NORMAL) | |
| 15321 | { | |
| 15322 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15323 | if (more_info != NULL) | |
| 15324 | { | |
| 15325 | strcpy (more_info, reloc_name); | |
| 15326 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15327 | ? " (OPD)" : " (stub)")); | |
| 15328 | reloc_name = more_info; | |
| 15329 | } | |
| 15330 | } | |
| 15331 | ||
| cd27b276 | 15332 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15333 | { |
| 8131c122 AM |
15334 | /* On code like "if (foo) foo();" don't report overflow |
| 15335 | on a branch to zero when foo is undefined. */ | |
| 15336 | if (!warned | |
| 15337 | && (reloc_dest == DEST_STUB | |
| 15338 | || !(h != NULL | |
| 15339 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15340 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15341 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15342 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15343 | sym_name, reloc_name, | |
| 15344 | orig_rel.r_addend, | |
| 15345 | input_bfd, input_section, | |
| 15346 | rel->r_offset); | |
| ef60b7ff AM |
15347 | } |
| 15348 | else | |
| 15349 | { | |
| 25f53a85 | 15350 | info->callbacks->einfo |
| 695344c0 | 15351 | /* xgettext:c-format */ |
| c1c8c1ef | 15352 | (_("%H: %s against `%pT': error %d\n"), |
| 25f53a85 | 15353 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15354 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15355 | ret = FALSE; |
| ef60b7ff | 15356 | } |
| bc30df16 AM |
15357 | if (more_info != NULL) |
| 15358 | free (more_info); | |
| 5bd4f169 | 15359 | } |
| c316a17c AM |
15360 | copy_reloc: |
| 15361 | if (wrel != rel) | |
| 15362 | *wrel = *rel; | |
| 15363 | } | |
| 15364 | ||
| 15365 | if (wrel != rel) | |
| 15366 | { | |
| 15367 | Elf_Internal_Shdr *rel_hdr; | |
| 15368 | size_t deleted = rel - wrel; | |
| 15369 | ||
| 15370 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15371 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15372 | if (rel_hdr->sh_size == 0) | |
| 15373 | { | |
| 15374 | /* It is too late to remove an empty reloc section. Leave | |
| 15375 | one NONE reloc. | |
| 15376 | ??? What is wrong with an empty section??? */ | |
| 15377 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15378 | deleted -= 1; | |
| 15379 | } | |
| 15380 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15381 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15382 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15383 | } |
| 15384 | ||
| 645ea6a9 AM |
15385 | /* If we're emitting relocations, then shortly after this function |
| 15386 | returns, reloc offsets and addends for this section will be | |
| 15387 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15388 | file rather than the input. Save a copy of the relocs for |
| 15389 | opd_entry_value. */ | |
| 0e1862bb | 15390 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15391 | { |
| 15392 | bfd_size_type amt; | |
| 15393 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15394 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15395 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15396 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15397 | if (rel == NULL) |
| 15398 | return FALSE; | |
| 15399 | memcpy (rel, relocs, amt); | |
| 15400 | } | |
| 5bd4f169 AM |
15401 | return ret; |
| 15402 | } | |
| 15403 | ||
| 754021d0 AM |
15404 | /* Adjust the value of any local symbols in opd sections. */ |
| 15405 | ||
| 6e0b88f1 | 15406 | static int |
| 754021d0 AM |
15407 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15408 | const char *name ATTRIBUTE_UNUSED, | |
| 15409 | Elf_Internal_Sym *elfsym, | |
| 15410 | asection *input_sec, | |
| 15411 | struct elf_link_hash_entry *h) | |
| 15412 | { | |
| 74f0fb50 AM |
15413 | struct _opd_sec_data *opd; |
| 15414 | long adjust; | |
| 754021d0 AM |
15415 | bfd_vma value; |
| 15416 | ||
| 4025353c | 15417 | if (h != NULL) |
| 6e0b88f1 | 15418 | return 1; |
| 4025353c | 15419 | |
| 74f0fb50 AM |
15420 | opd = get_opd_info (input_sec); |
| 15421 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15422 | return 1; |
| 754021d0 AM |
15423 | |
| 15424 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15425 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15426 | value -= input_sec->output_section->vma; |
| 15427 | ||
| 51aecdc5 | 15428 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15429 | if (adjust == -1) |
| 6e0b88f1 AM |
15430 | return 2; |
| 15431 | ||
| 15432 | elfsym->st_value += adjust; | |
| 15433 | return 1; | |
| 754021d0 AM |
15434 | } |
| 15435 | ||
| 5bd4f169 AM |
15436 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15437 | dynamic sections here. */ | |
| 15438 | ||
| b34976b6 | 15439 | static bfd_boolean |
| 4ce794b7 AM |
15440 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15441 | struct bfd_link_info *info, | |
| 15442 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 15443 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 15444 | { |
| 65f38f15 | 15445 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15446 | struct plt_entry *ent; |
| 15447 | Elf_Internal_Rela rela; | |
| 15448 | bfd_byte *loc; | |
| 5bd4f169 | 15449 | |
| 65f38f15 | 15450 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15451 | if (htab == NULL) |
| 15452 | return FALSE; | |
| 5bd4f169 | 15453 | |
| 8387904d AM |
15454 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15455 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15456 | { | |
| 15457 | /* This symbol has an entry in the procedure linkage | |
| 15458 | table. Set it up. */ | |
| e054468f AM |
15459 | if (!htab->elf.dynamic_sections_created |
| 15460 | || h->dynindx == -1) | |
| 15461 | { | |
| 15462 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15463 | && h->def_regular | |
| 15464 | && (h->root.type == bfd_link_hash_defined | |
| 15465 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15466 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15467 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15468 | + ent->plt.offset); |
| ee67d69a AM |
15469 | if (htab->opd_abi) |
| 15470 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15471 | else | |
| 15472 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15473 | rela.r_addend = (h->root.u.def.value |
| 15474 | + h->root.u.def.section->output_offset | |
| 15475 | + h->root.u.def.section->output_section->vma | |
| 15476 | + ent->addend); | |
| 33e44f2e AM |
15477 | loc = (htab->elf.irelplt->contents |
| 15478 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15479 | * sizeof (Elf64_External_Rela))); |
| 82e66161 | 15480 | htab->local_ifunc_resolver = 1; |
| e054468f AM |
15481 | } |
| 15482 | else | |
| 15483 | { | |
| 33e44f2e AM |
15484 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15485 | + htab->elf.splt->output_offset | |
| 25f23106 | 15486 | + ent->plt.offset); |
| e054468f AM |
15487 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15488 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15489 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15490 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15491 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 82e66161 AM |
15492 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) |
| 15493 | htab->maybe_local_ifunc_resolver = 1; | |
| e054468f | 15494 | } |
| 8387904d | 15495 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15496 | |
| 15497 | if (!htab->opd_abi) | |
| 15498 | { | |
| 15499 | if (!h->def_regular) | |
| 15500 | { | |
| 15501 | /* Mark the symbol as undefined, rather than as | |
| 15502 | defined in glink. Leave the value if there were | |
| 15503 | any relocations where pointer equality matters | |
| 15504 | (this is a clue for the dynamic linker, to make | |
| 15505 | function pointer comparisons work between an | |
| 15506 | application and shared library), otherwise set it | |
| 15507 | to zero. */ | |
| 15508 | sym->st_shndx = SHN_UNDEF; | |
| 15509 | if (!h->pointer_equality_needed) | |
| 15510 | sym->st_value = 0; | |
| 15511 | else if (!h->ref_regular_nonweak) | |
| 15512 | { | |
| 15513 | /* This breaks function pointer comparisons, but | |
| 15514 | that is better than breaking tests for a NULL | |
| 15515 | function pointer. */ | |
| 15516 | sym->st_value = 0; | |
| 15517 | } | |
| 15518 | } | |
| 15519 | } | |
| 8387904d | 15520 | } |
| 5bd4f169 | 15521 | |
| f5385ebf | 15522 | if (h->needs_copy) |
| 5bd4f169 | 15523 | { |
| 65f38f15 | 15524 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15525 | asection *srel; |
| 5bd4f169 | 15526 | |
| 65f38f15 AM |
15527 | if (h->dynindx == -1 |
| 15528 | || (h->root.type != bfd_link_hash_defined | |
| 15529 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15530 | || htab->elf.srelbss == NULL |
| 15531 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15532 | abort (); |
| 5bd4f169 AM |
15533 | |
| 15534 | rela.r_offset = (h->root.u.def.value | |
| 15535 | + h->root.u.def.section->output_section->vma | |
| 15536 | + h->root.u.def.section->output_offset); | |
| 15537 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15538 | rela.r_addend = 0; | |
| afbf7e8e | 15539 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
15540 | srel = htab->elf.sreldynrelro; |
| 15541 | else | |
| 15542 | srel = htab->elf.srelbss; | |
| 15543 | loc = srel->contents; | |
| 15544 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15545 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15546 | } |
| 15547 | ||
| b34976b6 | 15548 | return TRUE; |
| 5bd4f169 AM |
15549 | } |
| 15550 | ||
| 65f38f15 AM |
15551 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15552 | dynamic linker, before writing them out. */ | |
| 15553 | ||
| 15554 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15555 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15556 | const asection *rel_sec, | |
| 15557 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15558 | { |
| 04c9666a | 15559 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15560 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15561 | ||
| 33e44f2e | 15562 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15563 | return reloc_class_ifunc; |
| a33d1f77 | 15564 | |
| 4ce794b7 | 15565 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15566 | switch (r_type) |
| 65f38f15 AM |
15567 | { |
| 15568 | case R_PPC64_RELATIVE: | |
| 15569 | return reloc_class_relative; | |
| 15570 | case R_PPC64_JMP_SLOT: | |
| 15571 | return reloc_class_plt; | |
| 15572 | case R_PPC64_COPY: | |
| 15573 | return reloc_class_copy; | |
| 15574 | default: | |
| 15575 | return reloc_class_normal; | |
| 15576 | } | |
| 15577 | } | |
| 15578 | ||
| 5bd4f169 AM |
15579 | /* Finish up the dynamic sections. */ |
| 15580 | ||
| b34976b6 | 15581 | static bfd_boolean |
| 4ce794b7 AM |
15582 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15583 | struct bfd_link_info *info) | |
| 5bd4f169 | 15584 | { |
| 65f38f15 AM |
15585 | struct ppc_link_hash_table *htab; |
| 15586 | bfd *dynobj; | |
| 5bd4f169 | 15587 | asection *sdyn; |
| 5bd4f169 | 15588 | |
| 65f38f15 | 15589 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15590 | if (htab == NULL) |
| 15591 | return FALSE; | |
| 15592 | ||
| 65f38f15 | 15593 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15594 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15595 | |
| 65f38f15 | 15596 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15597 | { |
| 5bd4f169 AM |
15598 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15599 | ||
| 33e44f2e | 15600 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15601 | abort (); |
| 5bd4f169 AM |
15602 | |
| 15603 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15604 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15605 | for (; dyncon < dynconend; dyncon++) |
| 15606 | { | |
| 15607 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15608 | asection *s; |
| 5bd4f169 AM |
15609 | |
| 15610 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15611 | ||
| 15612 | switch (dyn.d_tag) | |
| 15613 | { | |
| 65f38f15 AM |
15614 | default: |
| 15615 | continue; | |
| 5bd4f169 | 15616 | |
| 5d1634d7 | 15617 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15618 | s = htab->glink; |
| 6348e046 | 15619 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15620 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15621 | of glink rather than the first entry point, which is | |
| 15622 | what ld.so needs, and now have a bigger stub to | |
| 15623 | support automatic multiple TOCs. */ | |
| 9e390558 | 15624 | dyn.d_un.d_ptr += GLINK_PLTRESOLVE_SIZE (htab) - 8 * 4; |
| 5d1634d7 AM |
15625 | break; |
| 15626 | ||
| 19397422 AM |
15627 | case DT_PPC64_OPD: |
| 15628 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15629 | if (s == NULL) |
| 15630 | continue; | |
| 15631 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15632 | break; |
| 15633 | ||
| e8910a83 AM |
15634 | case DT_PPC64_OPT: |
| 15635 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15636 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
15637 | if (htab->has_plt_localentry0) |
| 15638 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
15639 | break; |
| 15640 | ||
| 19397422 AM |
15641 | case DT_PPC64_OPDSZ: |
| 15642 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15643 | if (s == NULL) |
| 15644 | continue; | |
| eea6121a | 15645 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15646 | break; |
| 15647 | ||
| 65f38f15 | 15648 | case DT_PLTGOT: |
| 33e44f2e | 15649 | s = htab->elf.splt; |
| 6348e046 | 15650 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15651 | break; |
| 15652 | ||
| 15653 | case DT_JMPREL: | |
| 33e44f2e | 15654 | s = htab->elf.srelplt; |
| 6348e046 | 15655 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15656 | break; |
| 5bd4f169 | 15657 | |
| 65f38f15 | 15658 | case DT_PLTRELSZ: |
| 33e44f2e | 15659 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15660 | break; |
| 82e66161 AM |
15661 | |
| 15662 | case DT_TEXTREL: | |
| 15663 | if (htab->local_ifunc_resolver) | |
| 15664 | info->callbacks->einfo | |
| 15665 | (_("%X%P: text relocations and GNU indirect " | |
| 15666 | "functions will result in a segfault at runtime\n")); | |
| 15667 | else if (htab->maybe_local_ifunc_resolver) | |
| 15668 | info->callbacks->einfo | |
| 15669 | (_("%P: warning: text relocations and GNU indirect " | |
| 15670 | "functions may result in a segfault at runtime\n")); | |
| 15671 | continue; | |
| 5bd4f169 | 15672 | } |
| 5bd4f169 | 15673 | |
| 65f38f15 | 15674 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15675 | } |
| 5bd4f169 AM |
15676 | } |
| 15677 | ||
| 6528b6eb AM |
15678 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 15679 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15680 | { |
| 15681 | /* Fill in the first entry in the global offset table. | |
| 15682 | We use it to hold the link-time TOCbase. */ | |
| 15683 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15684 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15685 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15686 | |
| 15687 | /* Set .got entry size. */ | |
| 33e44f2e | 15688 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15689 | } |
| 15690 | ||
| 6528b6eb AM |
15691 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 15692 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15693 | { |
| 15694 | /* Set .plt entry size. */ | |
| 33e44f2e | 15695 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15696 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15697 | } |
| 15698 | ||
| 84f5d08e AM |
15699 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15700 | brlt ourselves if emitrelocations. */ | |
| 15701 | if (htab->brlt != NULL | |
| 15702 | && htab->brlt->reloc_count != 0 | |
| 15703 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15704 | htab->brlt, | |
| d4730f92 | 15705 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15706 | elf_section_data (htab->brlt)->relocs, |
| 15707 | NULL)) | |
| 15708 | return FALSE; | |
| 15709 | ||
| 176a0d42 AM |
15710 | if (htab->glink != NULL |
| 15711 | && htab->glink->reloc_count != 0 | |
| 15712 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15713 | htab->glink, | |
| d4730f92 | 15714 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15715 | elf_section_data (htab->glink)->relocs, |
| 15716 | NULL)) | |
| 15717 | return FALSE; | |
| 15718 | ||
| 58d180e8 | 15719 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15720 | && htab->glink_eh_frame->size != 0) |
| 15721 | { | |
| 15722 | bfd_vma val; | |
| 15723 | bfd_byte *p; | |
| d4aaa2a0 | 15724 | struct map_stub *group; |
| 2e0ce1c8 | 15725 | size_t align = 4; |
| da44f4e5 | 15726 | |
| 2e0ce1c8 AM |
15727 | p = htab->glink_eh_frame->contents; |
| 15728 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
15729 | |
| 15730 | for (group = htab->group; group != NULL; group = group->next) | |
| 15731 | if (group->stub_sec != NULL) | |
| da44f4e5 | 15732 | { |
| da44f4e5 | 15733 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
15734 | val = (group->stub_sec->output_section->vma |
| 15735 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
15736 | val -= (htab->glink_eh_frame->output_section->vma |
| 15737 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15738 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15739 | if (val + 0x80000000 > 0xffffffff) |
| 15740 | { | |
| cf97bcb0 AM |
15741 | _bfd_error_handler |
| 15742 | (_("%s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 15743 | group->stub_sec->name); |
| da44f4e5 AM |
15744 | return FALSE; |
| 15745 | } | |
| d4aaa2a0 AM |
15746 | bfd_put_32 (dynobj, val, p + 8); |
| 15747 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
15748 | } |
| 15749 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15750 | { | |
| da44f4e5 AM |
15751 | /* Offset to .glink. */ |
| 15752 | val = (htab->glink->output_section->vma | |
| 15753 | + htab->glink->output_offset | |
| 15754 | + 8); | |
| 15755 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15756 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15757 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15758 | if (val + 0x80000000 > 0xffffffff) |
| 15759 | { | |
| cf97bcb0 AM |
15760 | _bfd_error_handler |
| 15761 | (_("%s offset too large for .eh_frame sdata4 encoding"), | |
| da44f4e5 AM |
15762 | htab->glink->name); |
| 15763 | return FALSE; | |
| 15764 | } | |
| d4aaa2a0 AM |
15765 | bfd_put_32 (dynobj, val, p + 8); |
| 15766 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
15767 | } |
| 15768 | ||
| 15769 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15770 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15771 | htab->glink_eh_frame, | |
| 15772 | htab->glink_eh_frame->contents)) | |
| 15773 | return FALSE; | |
| 15774 | } | |
| 58d180e8 | 15775 | |
| e717da7e | 15776 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15777 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15778 | bfd. */ | |
| c72f2fb2 | 15779 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15780 | { |
| 15781 | asection *s; | |
| 7b53ace3 | 15782 | |
| 0c8d6e5c | 15783 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15784 | continue; |
| 15785 | ||
| e717da7e AM |
15786 | s = ppc64_elf_tdata (dynobj)->got; |
| 15787 | if (s != NULL | |
| eea6121a | 15788 | && s->size != 0 |
| e717da7e AM |
15789 | && s->output_section != bfd_abs_section_ptr |
| 15790 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15791 | s->contents, s->output_offset, | |
| eea6121a | 15792 | s->size)) |
| e717da7e AM |
15793 | return FALSE; |
| 15794 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15795 | if (s != NULL | |
| eea6121a | 15796 | && s->size != 0 |
| e717da7e AM |
15797 | && s->output_section != bfd_abs_section_ptr |
| 15798 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15799 | s->contents, s->output_offset, | |
| eea6121a | 15800 | s->size)) |
| e717da7e AM |
15801 | return FALSE; |
| 15802 | } | |
| f6c52c13 | 15803 | |
| b34976b6 | 15804 | return TRUE; |
| 5bd4f169 AM |
15805 | } |
| 15806 | ||
| 5bd4f169 | 15807 | #include "elf64-target.h" |
| 7b8e7dad AM |
15808 | |
| 15809 | /* FreeBSD support */ | |
| 15810 | ||
| 15811 | #undef TARGET_LITTLE_SYM | |
| 15812 | #undef TARGET_LITTLE_NAME | |
| 15813 | ||
| 15814 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15815 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15816 | #undef TARGET_BIG_NAME |
| 15817 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15818 | ||
| 15819 | #undef ELF_OSABI | |
| 15820 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15821 | ||
| 15822 | #undef elf64_bed | |
| 15823 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15824 | ||
| 15825 | #include "elf64-target.h" |