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 AM |
272 | |
| 273 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 274 | /* This reloc does nothing. */ | |
| 275 | HOWTO (R_PPC64_NONE, /* type */ | |
| 276 | 0, /* rightshift */ | |
| 6346d5ca AM |
277 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 278 | 0, /* bitsize */ | |
| b34976b6 | 279 | FALSE, /* pc_relative */ |
| 5bd4f169 | 280 | 0, /* bitpos */ |
| f5e87a1d | 281 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
282 | bfd_elf_generic_reloc, /* special_function */ |
| 283 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 284 | FALSE, /* partial_inplace */ |
| d006db6c | 285 | 0, /* src_mask */ |
| 5bd4f169 | 286 | 0, /* dst_mask */ |
| b34976b6 | 287 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
288 | |
| 289 | /* A standard 32 bit relocation. */ | |
| 290 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 291 | 0, /* rightshift */ | |
| 292 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 293 | 32, /* bitsize */ | |
| b34976b6 | 294 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
295 | 0, /* bitpos */ |
| 296 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 297 | bfd_elf_generic_reloc, /* special_function */ | |
| 298 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 299 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
300 | 0, /* src_mask */ |
| 301 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 302 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
303 | |
| 304 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 305 | FIXME: we don't check that, we just clear them. */ | |
| 306 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 307 | 0, /* rightshift */ | |
| 308 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 309 | 26, /* bitsize */ | |
| b34976b6 | 310 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
311 | 0, /* bitpos */ |
| 312 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 313 | bfd_elf_generic_reloc, /* special_function */ | |
| 314 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 315 | FALSE, /* partial_inplace */ |
| d006db6c | 316 | 0, /* src_mask */ |
| f5e87a1d | 317 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 318 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
319 | |
| 320 | /* A standard 16 bit relocation. */ | |
| 321 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 322 | 0, /* rightshift */ | |
| 323 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 324 | 16, /* bitsize */ | |
| b34976b6 | 325 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
326 | 0, /* bitpos */ |
| 327 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 328 | bfd_elf_generic_reloc, /* special_function */ | |
| 329 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 330 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
331 | 0, /* src_mask */ |
| 332 | 0xffff, /* dst_mask */ | |
| b34976b6 | 333 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
334 | |
| 335 | /* A 16 bit relocation without overflow. */ | |
| 336 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 337 | 0, /* rightshift */ | |
| 338 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 339 | 16, /* bitsize */ | |
| b34976b6 | 340 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
341 | 0, /* bitpos */ |
| 342 | complain_overflow_dont,/* complain_on_overflow */ | |
| 343 | bfd_elf_generic_reloc, /* special_function */ | |
| 344 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 345 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
346 | 0, /* src_mask */ |
| 347 | 0xffff, /* dst_mask */ | |
| b34976b6 | 348 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
349 | |
| 350 | /* Bits 16-31 of an address. */ | |
| 351 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 352 | 16, /* rightshift */ | |
| 353 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 354 | 16, /* bitsize */ | |
| b34976b6 | 355 | FALSE, /* pc_relative */ |
| 5bd4f169 | 356 | 0, /* bitpos */ |
| f9c6b907 | 357 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
358 | bfd_elf_generic_reloc, /* special_function */ |
| 359 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 360 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
361 | 0, /* src_mask */ |
| 362 | 0xffff, /* dst_mask */ | |
| b34976b6 | 363 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
364 | |
| 365 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 366 | bits, treated as a signed number, is negative. */ | |
| 367 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 368 | 16, /* rightshift */ | |
| 369 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 370 | 16, /* bitsize */ | |
| b34976b6 | 371 | FALSE, /* pc_relative */ |
| 5bd4f169 | 372 | 0, /* bitpos */ |
| f9c6b907 | 373 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 374 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 375 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 376 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
377 | 0, /* src_mask */ |
| 378 | 0xffff, /* dst_mask */ | |
| b34976b6 | 379 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
380 | |
| 381 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 382 | FIXME: we don't check that, we just clear them. */ | |
| 383 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 384 | 0, /* rightshift */ | |
| 385 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 386 | 16, /* bitsize */ | |
| b34976b6 | 387 | FALSE, /* pc_relative */ |
| 5bd4f169 | 388 | 0, /* bitpos */ |
| b80eed39 | 389 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 390 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 391 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 392 | FALSE, /* partial_inplace */ |
| d006db6c | 393 | 0, /* src_mask */ |
| f5e87a1d | 394 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 395 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
396 | |
| 397 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 398 | indicate that the branch is expected to be taken. The lower two | |
| 399 | bits must be zero. */ | |
| 400 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 401 | 0, /* rightshift */ | |
| 402 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 403 | 16, /* bitsize */ | |
| b34976b6 | 404 | FALSE, /* pc_relative */ |
| 5bd4f169 | 405 | 0, /* bitpos */ |
| b80eed39 | 406 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 407 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 408 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 409 | FALSE, /* partial_inplace */ |
| d006db6c | 410 | 0, /* src_mask */ |
| f5e87a1d | 411 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 412 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
413 | |
| 414 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 415 | indicate that the branch is not expected to be taken. The lower | |
| 416 | two bits must be zero. */ | |
| 417 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 418 | 0, /* rightshift */ | |
| 419 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 420 | 16, /* bitsize */ | |
| b34976b6 | 421 | FALSE, /* pc_relative */ |
| 5bd4f169 | 422 | 0, /* bitpos */ |
| b80eed39 | 423 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 424 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 425 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 426 | FALSE, /* partial_inplace */ |
| d006db6c | 427 | 0, /* src_mask */ |
| f5e87a1d | 428 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 429 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
430 | |
| 431 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 432 | HOWTO (R_PPC64_REL24, /* type */ | |
| 433 | 0, /* rightshift */ | |
| 434 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 435 | 26, /* bitsize */ | |
| b34976b6 | 436 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
437 | 0, /* bitpos */ |
| 438 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 439 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 440 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 441 | FALSE, /* partial_inplace */ |
| d006db6c | 442 | 0, /* src_mask */ |
| f5e87a1d | 443 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 444 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
445 | |
| 446 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 447 | HOWTO (R_PPC64_REL14, /* type */ | |
| 448 | 0, /* rightshift */ | |
| 449 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 450 | 16, /* bitsize */ | |
| b34976b6 | 451 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
452 | 0, /* bitpos */ |
| 453 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 454 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 455 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 456 | FALSE, /* partial_inplace */ |
| d006db6c | 457 | 0, /* src_mask */ |
| f5e87a1d | 458 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 459 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
460 | |
| 461 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 462 | the branch is expected to be taken. The lower two bits must be | |
| 463 | zero. */ | |
| 464 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 465 | 0, /* rightshift */ | |
| 466 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 467 | 16, /* bitsize */ | |
| b34976b6 | 468 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
469 | 0, /* bitpos */ |
| 470 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 471 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 472 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 473 | FALSE, /* partial_inplace */ |
| d006db6c | 474 | 0, /* src_mask */ |
| f5e87a1d | 475 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 476 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
477 | |
| 478 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 479 | the branch is not expected to be taken. The lower two bits must | |
| 480 | be zero. */ | |
| 481 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 482 | 0, /* rightshift */ | |
| 483 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 484 | 16, /* bitsize */ | |
| b34976b6 | 485 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
486 | 0, /* bitpos */ |
| 487 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 488 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 489 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 490 | FALSE, /* partial_inplace */ |
| d006db6c | 491 | 0, /* src_mask */ |
| f5e87a1d | 492 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 493 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
494 | |
| 495 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 496 | symbol. */ | |
| 497 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 498 | 0, /* rightshift */ | |
| 499 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 500 | 16, /* bitsize */ | |
| b34976b6 | 501 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
502 | 0, /* bitpos */ |
| 503 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 504 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 505 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 506 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
507 | 0, /* src_mask */ |
| 508 | 0xffff, /* dst_mask */ | |
| b34976b6 | 509 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
510 | |
| 511 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 512 | the symbol. */ | |
| 513 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 514 | 0, /* rightshift */ | |
| 515 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 516 | 16, /* bitsize */ | |
| b34976b6 | 517 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
518 | 0, /* bitpos */ |
| 519 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 520 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 521 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 522 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
523 | 0, /* src_mask */ |
| 524 | 0xffff, /* dst_mask */ | |
| b34976b6 | 525 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
526 | |
| 527 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 528 | the symbol. */ | |
| 529 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 530 | 16, /* rightshift */ | |
| 531 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 532 | 16, /* bitsize */ | |
| b34976b6 | 533 | FALSE, /* pc_relative */ |
| 5bd4f169 | 534 | 0, /* bitpos */ |
| f9c6b907 | 535 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 536 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 537 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 538 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
539 | 0, /* src_mask */ |
| 540 | 0xffff, /* dst_mask */ | |
| b34976b6 | 541 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
542 | |
| 543 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 544 | the symbol. */ | |
| 545 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 546 | 16, /* rightshift */ | |
| 547 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 548 | 16, /* bitsize */ | |
| b34976b6 | 549 | FALSE, /* pc_relative */ |
| 5bd4f169 | 550 | 0, /* bitpos */ |
| f9c6b907 | 551 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 552 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 553 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 554 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
555 | 0, /* src_mask */ |
| 556 | 0xffff, /* dst_mask */ | |
| b34976b6 | 557 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
558 | |
| 559 | /* This is used only by the dynamic linker. The symbol should exist | |
| 560 | both in the object being run and in some shared library. The | |
| 561 | dynamic linker copies the data addressed by the symbol from the | |
| 562 | shared library into the object, because the object being | |
| 563 | run has to have the data at some particular address. */ | |
| 564 | HOWTO (R_PPC64_COPY, /* type */ | |
| 565 | 0, /* rightshift */ | |
| f5e87a1d AM |
566 | 0, /* this one is variable size */ |
| 567 | 0, /* bitsize */ | |
| b34976b6 | 568 | FALSE, /* pc_relative */ |
| 5bd4f169 | 569 | 0, /* bitpos */ |
| f5e87a1d AM |
570 | complain_overflow_dont, /* complain_on_overflow */ |
| 571 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 572 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 573 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
574 | 0, /* src_mask */ |
| 575 | 0, /* dst_mask */ | |
| b34976b6 | 576 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
577 | |
| 578 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 579 | entries. */ | |
| 580 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 581 | 0, /* rightshift */ | |
| 582 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 583 | 64, /* bitsize */ | |
| b34976b6 | 584 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
585 | 0, /* bitpos */ |
| 586 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 587 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 588 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 589 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 590 | 0, /* src_mask */ |
| f5e87a1d | 591 | ONES (64), /* dst_mask */ |
| b34976b6 | 592 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
593 | |
| 594 | /* Created by the link editor. Marks a procedure linkage table | |
| 595 | entry for a symbol. */ | |
| 596 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 597 | 0, /* rightshift */ | |
| 598 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 599 | 0, /* bitsize */ | |
| b34976b6 | 600 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
601 | 0, /* bitpos */ |
| 602 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 603 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 604 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 605 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
606 | 0, /* src_mask */ |
| 607 | 0, /* dst_mask */ | |
| b34976b6 | 608 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
609 | |
| 610 | /* Used only by the dynamic linker. When the object is run, this | |
| 611 | doubleword64 is set to the load address of the object, plus the | |
| 612 | addend. */ | |
| 613 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 614 | 0, /* rightshift */ | |
| 615 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 616 | 64, /* bitsize */ | |
| b34976b6 | 617 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
618 | 0, /* bitpos */ |
| 619 | complain_overflow_dont, /* complain_on_overflow */ | |
| 620 | bfd_elf_generic_reloc, /* special_function */ | |
| 621 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 622 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 623 | 0, /* src_mask */ |
| f5e87a1d | 624 | ONES (64), /* dst_mask */ |
| b34976b6 | 625 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
626 | |
| 627 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 628 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 629 | 0, /* rightshift */ | |
| 630 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 631 | 32, /* bitsize */ | |
| b34976b6 | 632 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
633 | 0, /* bitpos */ |
| 634 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 635 | bfd_elf_generic_reloc, /* special_function */ | |
| 636 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 637 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
638 | 0, /* src_mask */ |
| 639 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 640 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
641 | |
| 642 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 643 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 644 | 0, /* rightshift */ | |
| 645 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 646 | 16, /* bitsize */ | |
| b34976b6 | 647 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
648 | 0, /* bitpos */ |
| 649 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 650 | bfd_elf_generic_reloc, /* special_function */ | |
| 651 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 652 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
653 | 0, /* src_mask */ |
| 654 | 0xffff, /* dst_mask */ | |
| b34976b6 | 655 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
656 | |
| 657 | /* 32-bit PC relative. */ | |
| 658 | HOWTO (R_PPC64_REL32, /* type */ | |
| 659 | 0, /* rightshift */ | |
| 660 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 661 | 32, /* bitsize */ | |
| b34976b6 | 662 | TRUE, /* pc_relative */ |
| 5bd4f169 | 663 | 0, /* bitpos */ |
| 5bd4f169 AM |
664 | complain_overflow_signed, /* complain_on_overflow */ |
| 665 | bfd_elf_generic_reloc, /* special_function */ | |
| 666 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 667 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
668 | 0, /* src_mask */ |
| 669 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 670 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 671 | |
| 10ed1bba | 672 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
673 | HOWTO (R_PPC64_PLT32, /* type */ |
| 674 | 0, /* rightshift */ | |
| 675 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 676 | 32, /* bitsize */ | |
| b34976b6 | 677 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
678 | 0, /* bitpos */ |
| 679 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 680 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 681 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 682 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 683 | 0, /* src_mask */ |
| f5e87a1d | 684 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 685 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
686 | |
| 687 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 688 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 689 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 690 | 0, /* rightshift */ | |
| 691 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 692 | 32, /* bitsize */ | |
| b34976b6 | 693 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
694 | 0, /* bitpos */ |
| 695 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 696 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 697 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 698 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 699 | 0, /* src_mask */ |
| f5e87a1d | 700 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 701 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
702 | |
| 703 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 704 | the symbol. */ | |
| 705 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 706 | 0, /* rightshift */ | |
| 707 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 708 | 16, /* bitsize */ | |
| b34976b6 | 709 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
710 | 0, /* bitpos */ |
| 711 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 712 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 713 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 714 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
715 | 0, /* src_mask */ |
| 716 | 0xffff, /* dst_mask */ | |
| b34976b6 | 717 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
718 | |
| 719 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 720 | the symbol. */ | |
| 721 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 722 | 16, /* rightshift */ | |
| 723 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 724 | 16, /* bitsize */ | |
| b34976b6 | 725 | FALSE, /* pc_relative */ |
| 5bd4f169 | 726 | 0, /* bitpos */ |
| f9c6b907 | 727 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 728 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 729 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 730 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
731 | 0, /* src_mask */ |
| 732 | 0xffff, /* dst_mask */ | |
| b34976b6 | 733 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
734 | |
| 735 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 736 | the symbol. */ | |
| 737 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 738 | 16, /* rightshift */ | |
| 739 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 740 | 16, /* bitsize */ | |
| b34976b6 | 741 | FALSE, /* pc_relative */ |
| 5bd4f169 | 742 | 0, /* bitpos */ |
| f9c6b907 | 743 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 744 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 745 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 746 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
747 | 0, /* src_mask */ |
| 748 | 0xffff, /* dst_mask */ | |
| b34976b6 | 749 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 750 | |
| c061c2d8 | 751 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
752 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 753 | 0, /* rightshift */ | |
| c061c2d8 AM |
754 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 755 | 16, /* bitsize */ | |
| b34976b6 | 756 | FALSE, /* pc_relative */ |
| 5bd4f169 | 757 | 0, /* bitpos */ |
| b80eed39 | 758 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 759 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 760 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 761 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 762 | 0, /* src_mask */ |
| c061c2d8 | 763 | 0xffff, /* dst_mask */ |
| b34976b6 | 764 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 765 | |
| c061c2d8 | 766 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
767 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 768 | 0, /* rightshift */ | |
| 769 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 770 | 16, /* bitsize */ | |
| b34976b6 | 771 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
772 | 0, /* bitpos */ |
| 773 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 774 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 775 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 776 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
777 | 0, /* src_mask */ |
| 778 | 0xffff, /* dst_mask */ | |
| b34976b6 | 779 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
780 | |
| 781 | /* 16-bit upper half section relative relocation. */ | |
| 782 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 783 | 16, /* rightshift */ | |
| 784 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 785 | 16, /* bitsize */ | |
| b34976b6 | 786 | FALSE, /* pc_relative */ |
| 5bd4f169 | 787 | 0, /* bitpos */ |
| f9c6b907 | 788 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 789 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 790 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 791 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
792 | 0, /* src_mask */ |
| 793 | 0xffff, /* dst_mask */ | |
| b34976b6 | 794 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
795 | |
| 796 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 797 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 798 | 16, /* rightshift */ | |
| 799 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 800 | 16, /* bitsize */ | |
| b34976b6 | 801 | FALSE, /* pc_relative */ |
| 5bd4f169 | 802 | 0, /* bitpos */ |
| f9c6b907 | 803 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 804 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 805 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 806 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
807 | 0, /* src_mask */ |
| 808 | 0xffff, /* dst_mask */ | |
| b34976b6 | 809 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 810 | |
| 04c9666a AM |
811 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 812 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
813 | 2, /* rightshift */ |
| 814 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 815 | 30, /* bitsize */ | |
| b34976b6 | 816 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
817 | 0, /* bitpos */ |
| 818 | complain_overflow_dont, /* complain_on_overflow */ | |
| 819 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 820 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 821 | FALSE, /* partial_inplace */ |
| d006db6c | 822 | 0, /* src_mask */ |
| 5bd4f169 | 823 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 824 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
825 | |
| 826 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 827 | ||
| 828 | /* A standard 64-bit relocation. */ | |
| 829 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 830 | 0, /* rightshift */ | |
| 831 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 832 | 64, /* bitsize */ | |
| b34976b6 | 833 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
834 | 0, /* bitpos */ |
| 835 | complain_overflow_dont, /* complain_on_overflow */ | |
| 836 | bfd_elf_generic_reloc, /* special_function */ | |
| 837 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 838 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 839 | 0, /* src_mask */ |
| f5e87a1d | 840 | ONES (64), /* dst_mask */ |
| b34976b6 | 841 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
842 | |
| 843 | /* The bits 32-47 of an address. */ | |
| 844 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 845 | 32, /* rightshift */ | |
| 846 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 847 | 16, /* bitsize */ | |
| b34976b6 | 848 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
849 | 0, /* bitpos */ |
| 850 | complain_overflow_dont, /* complain_on_overflow */ | |
| 851 | bfd_elf_generic_reloc, /* special_function */ | |
| 852 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 853 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
854 | 0, /* src_mask */ |
| 855 | 0xffff, /* dst_mask */ | |
| b34976b6 | 856 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
857 | |
| 858 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 859 | 16 bits, treated as a signed number, is negative. */ | |
| 860 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 861 | 32, /* rightshift */ | |
| 862 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 863 | 16, /* bitsize */ | |
| b34976b6 | 864 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
865 | 0, /* bitpos */ |
| 866 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 867 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 868 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 869 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
870 | 0, /* src_mask */ |
| 871 | 0xffff, /* dst_mask */ | |
| b34976b6 | 872 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
873 | |
| 874 | /* The bits 48-63 of an address. */ | |
| 875 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 876 | 48, /* rightshift */ | |
| 877 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 878 | 16, /* bitsize */ | |
| b34976b6 | 879 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
880 | 0, /* bitpos */ |
| 881 | complain_overflow_dont, /* complain_on_overflow */ | |
| 882 | bfd_elf_generic_reloc, /* special_function */ | |
| 883 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 884 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
885 | 0, /* src_mask */ |
| 886 | 0xffff, /* dst_mask */ | |
| b34976b6 | 887 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
888 | |
| 889 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 890 | 16 bits, treated as a signed number, is negative. */ | |
| 891 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 892 | 48, /* rightshift */ | |
| 893 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 894 | 16, /* bitsize */ | |
| b34976b6 | 895 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
896 | 0, /* bitpos */ |
| 897 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 898 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 899 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 900 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
901 | 0, /* src_mask */ |
| 902 | 0xffff, /* dst_mask */ | |
| b34976b6 | 903 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
904 | |
| 905 | /* Like ADDR64, but may be unaligned. */ | |
| 906 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 907 | 0, /* rightshift */ | |
| 908 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 909 | 64, /* bitsize */ | |
| b34976b6 | 910 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
911 | 0, /* bitpos */ |
| 912 | complain_overflow_dont, /* complain_on_overflow */ | |
| 913 | bfd_elf_generic_reloc, /* special_function */ | |
| 914 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 915 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 916 | 0, /* src_mask */ |
| f5e87a1d | 917 | ONES (64), /* dst_mask */ |
| b34976b6 | 918 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
919 | |
| 920 | /* 64-bit relative relocation. */ | |
| 921 | HOWTO (R_PPC64_REL64, /* type */ | |
| 922 | 0, /* rightshift */ | |
| 923 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 924 | 64, /* bitsize */ | |
| b34976b6 | 925 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
926 | 0, /* bitpos */ |
| 927 | complain_overflow_dont, /* complain_on_overflow */ | |
| 928 | bfd_elf_generic_reloc, /* special_function */ | |
| 929 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 930 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 931 | 0, /* src_mask */ |
| f5e87a1d | 932 | ONES (64), /* dst_mask */ |
| b34976b6 | 933 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 934 | |
| cedb70c5 | 935 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
936 | HOWTO (R_PPC64_PLT64, /* type */ |
| 937 | 0, /* rightshift */ | |
| 938 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 939 | 64, /* bitsize */ | |
| b34976b6 | 940 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
941 | 0, /* bitpos */ |
| 942 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 943 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 944 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 945 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 946 | 0, /* src_mask */ |
| f5e87a1d | 947 | ONES (64), /* dst_mask */ |
| b34976b6 | 948 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
949 | |
| 950 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 951 | table. */ | |
| 952 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 953 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 954 | 0, /* rightshift */ | |
| 955 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 956 | 64, /* bitsize */ | |
| b34976b6 | 957 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
958 | 0, /* bitpos */ |
| 959 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 960 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 961 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 962 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 963 | 0, /* src_mask */ |
| f5e87a1d | 964 | ONES (64), /* dst_mask */ |
| b34976b6 | 965 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
966 | |
| 967 | /* 16 bit TOC-relative relocation. */ | |
| 968 | ||
| 969 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 970 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 971 | 0, /* rightshift */ | |
| 972 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 973 | 16, /* bitsize */ | |
| b34976b6 | 974 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
975 | 0, /* bitpos */ |
| 976 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 977 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 978 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 979 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
980 | 0, /* src_mask */ |
| 981 | 0xffff, /* dst_mask */ | |
| b34976b6 | 982 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
983 | |
| 984 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 985 | ||
| 986 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 987 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 988 | 0, /* rightshift */ | |
| 989 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 990 | 16, /* bitsize */ | |
| b34976b6 | 991 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
992 | 0, /* bitpos */ |
| 993 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 994 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 995 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 996 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
997 | 0, /* src_mask */ |
| 998 | 0xffff, /* dst_mask */ | |
| b34976b6 | 999 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1000 | |
| 1001 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1002 | ||
| 1003 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1004 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1005 | 16, /* rightshift */ | |
| 1006 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1007 | 16, /* bitsize */ | |
| b34976b6 | 1008 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1009 | 0, /* bitpos */ |
| f9c6b907 | 1010 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1011 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1012 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1013 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1014 | 0, /* src_mask */ |
| 1015 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1016 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1017 | |
| 1018 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1019 | contents of the low 16 bits, treated as a signed number, is | |
| 1020 | negative. */ | |
| 1021 | ||
| 1022 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1023 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1024 | 16, /* rightshift */ | |
| 1025 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1026 | 16, /* bitsize */ | |
| b34976b6 | 1027 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1028 | 0, /* bitpos */ |
| f9c6b907 | 1029 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1030 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1031 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1032 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1033 | 0, /* src_mask */ |
| 1034 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1035 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1036 | |
| 1037 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1038 | ||
| 1039 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1040 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1041 | 0, /* rightshift */ | |
| 1042 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1043 | 64, /* bitsize */ | |
| b34976b6 | 1044 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1045 | 0, /* bitpos */ |
| b80eed39 | 1046 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1047 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1048 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1049 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1050 | 0, /* src_mask */ |
| f5e87a1d | 1051 | ONES (64), /* dst_mask */ |
| b34976b6 | 1052 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1053 | |
| 1054 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1055 | value to relocate may (!) refer to a PLT entry which the link | |
| 1056 | editor (a) may replace with the symbol value. If the link editor | |
| 1057 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1058 | entry and store the address to the new PLT entry in the GOT. | |
| 1059 | This permits lazy resolution of function symbols at run time. | |
| 1060 | The link editor may also skip all of this and just (c) emit a | |
| 1061 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1062 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1063 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1064 | 0, /* rightshift */ | |
| 1065 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1066 | 16, /* bitsize */ | |
| b34976b6 | 1067 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1068 | 0, /* bitpos */ |
| 1069 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1070 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1071 | "R_PPC64_PLTGOT16", /* name */ |
| 1072 | FALSE, /* partial_inplace */ | |
| 1073 | 0, /* src_mask */ | |
| 1074 | 0xffff, /* dst_mask */ | |
| 1075 | FALSE), /* pcrel_offset */ | |
| 1076 | ||
| 1077 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1078 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1079 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1080 | 0, /* rightshift */ | |
| 1081 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1082 | 16, /* bitsize */ | |
| 1083 | FALSE, /* pc_relative */ | |
| 1084 | 0, /* bitpos */ | |
| 1085 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1086 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1087 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1088 | FALSE, /* partial_inplace */ | |
| 1089 | 0, /* src_mask */ | |
| 1090 | 0xffff, /* dst_mask */ | |
| 1091 | FALSE), /* pcrel_offset */ | |
| 1092 | ||
| 1093 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1094 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1095 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1096 | 16, /* rightshift */ | |
| 1097 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1098 | 16, /* bitsize */ | |
| 1099 | FALSE, /* pc_relative */ | |
| 1100 | 0, /* bitpos */ | |
| f9c6b907 | 1101 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1102 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1103 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1104 | FALSE, /* partial_inplace */ | |
| 1105 | 0, /* src_mask */ | |
| 1106 | 0xffff, /* dst_mask */ | |
| 1107 | FALSE), /* pcrel_offset */ | |
| 1108 | ||
| 1109 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1110 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1111 | is negative. */ | |
| 1112 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1113 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1114 | 16, /* rightshift */ | |
| 1115 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1116 | 16, /* bitsize */ | |
| 1117 | FALSE, /* pc_relative */ | |
| 1118 | 0, /* bitpos */ | |
| f9c6b907 | 1119 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1120 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1121 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1122 | FALSE, /* partial_inplace */ | |
| 1123 | 0, /* src_mask */ | |
| 1124 | 0xffff, /* dst_mask */ | |
| 1125 | FALSE), /* pcrel_offset */ | |
| 1126 | ||
| 1127 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1128 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1129 | 0, /* rightshift */ | |
| 1130 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1131 | 16, /* bitsize */ | |
| 1132 | FALSE, /* pc_relative */ | |
| 1133 | 0, /* bitpos */ | |
| b80eed39 | 1134 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1135 | bfd_elf_generic_reloc, /* special_function */ |
| 1136 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1137 | FALSE, /* partial_inplace */ | |
| 1138 | 0, /* src_mask */ | |
| 1139 | 0xfffc, /* dst_mask */ | |
| 1140 | FALSE), /* pcrel_offset */ | |
| 1141 | ||
| 1142 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1143 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1144 | 0, /* rightshift */ | |
| 1145 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1146 | 16, /* bitsize */ | |
| 1147 | FALSE, /* pc_relative */ | |
| 1148 | 0, /* bitpos */ | |
| 1149 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1150 | bfd_elf_generic_reloc, /* special_function */ | |
| 1151 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1152 | FALSE, /* partial_inplace */ | |
| 1153 | 0, /* src_mask */ | |
| 1154 | 0xfffc, /* dst_mask */ | |
| 1155 | FALSE), /* pcrel_offset */ | |
| 1156 | ||
| 1157 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1158 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1159 | 0, /* rightshift */ | |
| 1160 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1161 | 16, /* bitsize */ | |
| 1162 | FALSE, /* pc_relative */ | |
| 1163 | 0, /* bitpos */ | |
| 1164 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1165 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1166 | "R_PPC64_GOT16_DS", /* name */ | |
| 1167 | FALSE, /* partial_inplace */ | |
| 1168 | 0, /* src_mask */ | |
| 1169 | 0xfffc, /* dst_mask */ | |
| 1170 | FALSE), /* pcrel_offset */ | |
| 1171 | ||
| 1172 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1173 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1174 | 0, /* rightshift */ | |
| 1175 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1176 | 16, /* bitsize */ | |
| 1177 | FALSE, /* pc_relative */ | |
| 1178 | 0, /* bitpos */ | |
| 1179 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1180 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1181 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1182 | FALSE, /* partial_inplace */ | |
| 1183 | 0, /* src_mask */ | |
| 1184 | 0xfffc, /* dst_mask */ | |
| 1185 | FALSE), /* pcrel_offset */ | |
| 1186 | ||
| 1187 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1188 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1189 | 0, /* rightshift */ | |
| 1190 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1191 | 16, /* bitsize */ | |
| 1192 | FALSE, /* pc_relative */ | |
| 1193 | 0, /* bitpos */ | |
| 1194 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1195 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1196 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1197 | FALSE, /* partial_inplace */ | |
| 1198 | 0, /* src_mask */ | |
| 1199 | 0xfffc, /* dst_mask */ | |
| 1200 | FALSE), /* pcrel_offset */ | |
| 1201 | ||
| 1202 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1203 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1204 | 0, /* rightshift */ | |
| 1205 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1206 | 16, /* bitsize */ | |
| 1207 | FALSE, /* pc_relative */ | |
| 1208 | 0, /* bitpos */ | |
| b80eed39 | 1209 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1210 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1211 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1212 | FALSE, /* partial_inplace */ | |
| 1213 | 0, /* src_mask */ | |
| 1214 | 0xfffc, /* dst_mask */ | |
| 1215 | FALSE), /* pcrel_offset */ | |
| 1216 | ||
| 1217 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1218 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1219 | 0, /* rightshift */ | |
| 1220 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1221 | 16, /* bitsize */ | |
| 1222 | FALSE, /* pc_relative */ | |
| 1223 | 0, /* bitpos */ | |
| 1224 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1225 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1226 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1227 | FALSE, /* partial_inplace */ | |
| 1228 | 0, /* src_mask */ | |
| 1229 | 0xfffc, /* dst_mask */ | |
| 1230 | FALSE), /* pcrel_offset */ | |
| 1231 | ||
| 1232 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1233 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1234 | 0, /* rightshift */ | |
| 1235 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1236 | 16, /* bitsize */ | |
| 1237 | FALSE, /* pc_relative */ | |
| 1238 | 0, /* bitpos */ | |
| 1239 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1240 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1241 | "R_PPC64_TOC16_DS", /* name */ | |
| 1242 | FALSE, /* partial_inplace */ | |
| 1243 | 0, /* src_mask */ | |
| 1244 | 0xfffc, /* dst_mask */ | |
| 1245 | FALSE), /* pcrel_offset */ | |
| 1246 | ||
| 1247 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1248 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1249 | 0, /* rightshift */ | |
| 1250 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1251 | 16, /* bitsize */ | |
| 1252 | FALSE, /* pc_relative */ | |
| 1253 | 0, /* bitpos */ | |
| 1254 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1255 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1256 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1257 | FALSE, /* partial_inplace */ | |
| 1258 | 0, /* src_mask */ | |
| 1259 | 0xfffc, /* dst_mask */ | |
| 1260 | FALSE), /* pcrel_offset */ | |
| 1261 | ||
| 1262 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1263 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1264 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1265 | 0, /* rightshift */ |
| 1266 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1267 | 16, /* bitsize */ | |
| 1268 | FALSE, /* pc_relative */ | |
| 1269 | 0, /* bitpos */ | |
| 1270 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1271 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1272 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1273 | FALSE, /* partial_inplace */ | |
| 1274 | 0, /* src_mask */ | |
| 1275 | 0xfffc, /* dst_mask */ | |
| 1276 | FALSE), /* pcrel_offset */ | |
| 1277 | ||
| 1278 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1279 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1280 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1281 | 0, /* rightshift */ | |
| 1282 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1283 | 16, /* bitsize */ | |
| 1284 | FALSE, /* pc_relative */ | |
| 1285 | 0, /* bitpos */ | |
| 1286 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1287 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1288 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1289 | FALSE, /* partial_inplace */ | |
| 1290 | 0, /* src_mask */ | |
| 1291 | 0xfffc, /* dst_mask */ | |
| 1292 | FALSE), /* pcrel_offset */ | |
| 1293 | ||
| 727fc41e | 1294 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1295 | HOWTO (R_PPC64_TLS, |
| 1296 | 0, /* rightshift */ | |
| 1297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1298 | 32, /* bitsize */ | |
| 1299 | FALSE, /* pc_relative */ | |
| 1300 | 0, /* bitpos */ | |
| 1301 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1302 | bfd_elf_generic_reloc, /* special_function */ | |
| 1303 | "R_PPC64_TLS", /* name */ | |
| 1304 | FALSE, /* partial_inplace */ | |
| 1305 | 0, /* src_mask */ | |
| 1306 | 0, /* dst_mask */ | |
| 1307 | FALSE), /* pcrel_offset */ | |
| 1308 | ||
| 727fc41e AM |
1309 | HOWTO (R_PPC64_TLSGD, |
| 1310 | 0, /* rightshift */ | |
| 1311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1312 | 32, /* bitsize */ | |
| 1313 | FALSE, /* pc_relative */ | |
| 1314 | 0, /* bitpos */ | |
| 1315 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1316 | bfd_elf_generic_reloc, /* special_function */ | |
| 1317 | "R_PPC64_TLSGD", /* name */ | |
| 1318 | FALSE, /* partial_inplace */ | |
| 1319 | 0, /* src_mask */ | |
| 1320 | 0, /* dst_mask */ | |
| 1321 | FALSE), /* pcrel_offset */ | |
| 1322 | ||
| 1323 | HOWTO (R_PPC64_TLSLD, | |
| 1324 | 0, /* rightshift */ | |
| 1325 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1326 | 32, /* bitsize */ | |
| 1327 | FALSE, /* pc_relative */ | |
| 1328 | 0, /* bitpos */ | |
| 1329 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1330 | bfd_elf_generic_reloc, /* special_function */ | |
| 1331 | "R_PPC64_TLSLD", /* name */ | |
| 1332 | FALSE, /* partial_inplace */ | |
| 1333 | 0, /* src_mask */ | |
| 1334 | 0, /* dst_mask */ | |
| 1335 | FALSE), /* pcrel_offset */ | |
| 1336 | ||
| 3b421ab3 AM |
1337 | HOWTO (R_PPC64_TOCSAVE, |
| 1338 | 0, /* rightshift */ | |
| 1339 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1340 | 32, /* bitsize */ | |
| 1341 | FALSE, /* pc_relative */ | |
| 1342 | 0, /* bitpos */ | |
| 1343 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1344 | bfd_elf_generic_reloc, /* special_function */ | |
| 1345 | "R_PPC64_TOCSAVE", /* name */ | |
| 1346 | FALSE, /* partial_inplace */ | |
| 1347 | 0, /* src_mask */ | |
| 1348 | 0, /* dst_mask */ | |
| 1349 | FALSE), /* pcrel_offset */ | |
| 1350 | ||
| 411e1bfb AM |
1351 | /* Computes the load module index of the load module that contains the |
| 1352 | definition of its TLS sym. */ | |
| 1353 | HOWTO (R_PPC64_DTPMOD64, | |
| 1354 | 0, /* rightshift */ | |
| 1355 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1356 | 64, /* bitsize */ | |
| 1357 | FALSE, /* pc_relative */ | |
| 1358 | 0, /* bitpos */ | |
| 1359 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1360 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1361 | "R_PPC64_DTPMOD64", /* name */ | |
| 1362 | FALSE, /* partial_inplace */ | |
| 1363 | 0, /* src_mask */ | |
| 1364 | ONES (64), /* dst_mask */ | |
| 1365 | FALSE), /* pcrel_offset */ | |
| 1366 | ||
| 1367 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1368 | of sym+add and the base address of the thread-local storage block that | |
| 1369 | contains the definition of sym, minus 0x8000. */ | |
| 1370 | HOWTO (R_PPC64_DTPREL64, | |
| 1371 | 0, /* rightshift */ | |
| 1372 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1373 | 64, /* bitsize */ | |
| 1374 | FALSE, /* pc_relative */ | |
| 1375 | 0, /* bitpos */ | |
| 1376 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1377 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1378 | "R_PPC64_DTPREL64", /* name */ | |
| 1379 | FALSE, /* partial_inplace */ | |
| 1380 | 0, /* src_mask */ | |
| 1381 | ONES (64), /* dst_mask */ | |
| 1382 | FALSE), /* pcrel_offset */ | |
| 1383 | ||
| 1384 | /* A 16 bit dtprel reloc. */ | |
| 1385 | HOWTO (R_PPC64_DTPREL16, | |
| 1386 | 0, /* rightshift */ | |
| 1387 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1388 | 16, /* bitsize */ | |
| 1389 | FALSE, /* pc_relative */ | |
| 1390 | 0, /* bitpos */ | |
| 1391 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1392 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1393 | "R_PPC64_DTPREL16", /* name */ | |
| 1394 | FALSE, /* partial_inplace */ | |
| 1395 | 0, /* src_mask */ | |
| 1396 | 0xffff, /* dst_mask */ | |
| 1397 | FALSE), /* pcrel_offset */ | |
| 1398 | ||
| 1399 | /* Like DTPREL16, but no overflow. */ | |
| 1400 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1401 | 0, /* rightshift */ | |
| 1402 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1403 | 16, /* bitsize */ | |
| 1404 | FALSE, /* pc_relative */ | |
| 1405 | 0, /* bitpos */ | |
| 1406 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1407 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1408 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1409 | FALSE, /* partial_inplace */ | |
| 1410 | 0, /* src_mask */ | |
| 1411 | 0xffff, /* dst_mask */ | |
| 1412 | FALSE), /* pcrel_offset */ | |
| 1413 | ||
| 1414 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1415 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1416 | 16, /* rightshift */ | |
| 1417 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1418 | 16, /* bitsize */ | |
| 1419 | FALSE, /* pc_relative */ | |
| 1420 | 0, /* bitpos */ | |
| f9c6b907 | 1421 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1422 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1423 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1424 | FALSE, /* partial_inplace */ | |
| 1425 | 0, /* src_mask */ | |
| 1426 | 0xffff, /* dst_mask */ | |
| 1427 | FALSE), /* pcrel_offset */ | |
| 1428 | ||
| 1429 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1430 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1431 | 16, /* rightshift */ | |
| 1432 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1433 | 16, /* bitsize */ | |
| 1434 | FALSE, /* pc_relative */ | |
| 1435 | 0, /* bitpos */ | |
| f9c6b907 | 1436 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1437 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1438 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1439 | FALSE, /* partial_inplace */ | |
| 1440 | 0, /* src_mask */ | |
| 1441 | 0xffff, /* dst_mask */ | |
| 1442 | FALSE), /* pcrel_offset */ | |
| 1443 | ||
| 1444 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1445 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1446 | 32, /* rightshift */ | |
| 1447 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1448 | 16, /* bitsize */ | |
| 1449 | FALSE, /* pc_relative */ | |
| 1450 | 0, /* bitpos */ | |
| 1451 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1452 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1453 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1454 | FALSE, /* partial_inplace */ | |
| 1455 | 0, /* src_mask */ | |
| 1456 | 0xffff, /* dst_mask */ | |
| 1457 | FALSE), /* pcrel_offset */ | |
| 1458 | ||
| 1459 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1460 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1461 | 32, /* rightshift */ | |
| 1462 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1463 | 16, /* bitsize */ | |
| 1464 | FALSE, /* pc_relative */ | |
| 1465 | 0, /* bitpos */ | |
| 1466 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1467 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1468 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1469 | FALSE, /* partial_inplace */ | |
| 1470 | 0, /* src_mask */ | |
| 1471 | 0xffff, /* dst_mask */ | |
| 1472 | FALSE), /* pcrel_offset */ | |
| 1473 | ||
| 1474 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1475 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1476 | 48, /* rightshift */ | |
| 1477 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1478 | 16, /* bitsize */ | |
| 1479 | FALSE, /* pc_relative */ | |
| 1480 | 0, /* bitpos */ | |
| 1481 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1482 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1483 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1484 | FALSE, /* partial_inplace */ | |
| 1485 | 0, /* src_mask */ | |
| 1486 | 0xffff, /* dst_mask */ | |
| 1487 | FALSE), /* pcrel_offset */ | |
| 1488 | ||
| 1489 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1490 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1491 | 48, /* rightshift */ | |
| 1492 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1493 | 16, /* bitsize */ | |
| 1494 | FALSE, /* pc_relative */ | |
| 1495 | 0, /* bitpos */ | |
| 1496 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1497 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1498 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1499 | FALSE, /* partial_inplace */ | |
| 1500 | 0, /* src_mask */ | |
| 1501 | 0xffff, /* dst_mask */ | |
| 1502 | FALSE), /* pcrel_offset */ | |
| 1503 | ||
| 1504 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1505 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1506 | 0, /* rightshift */ | |
| 1507 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1508 | 16, /* bitsize */ | |
| 1509 | FALSE, /* pc_relative */ | |
| 1510 | 0, /* bitpos */ | |
| 1511 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1512 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1513 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1514 | FALSE, /* partial_inplace */ | |
| 1515 | 0, /* src_mask */ | |
| 1516 | 0xfffc, /* dst_mask */ | |
| 1517 | FALSE), /* pcrel_offset */ | |
| 1518 | ||
| 1519 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1520 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1521 | 0, /* rightshift */ | |
| 1522 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1523 | 16, /* bitsize */ | |
| 1524 | FALSE, /* pc_relative */ | |
| 1525 | 0, /* bitpos */ | |
| 1526 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1527 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1528 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1529 | FALSE, /* partial_inplace */ | |
| 1530 | 0, /* src_mask */ | |
| 1531 | 0xfffc, /* dst_mask */ | |
| 1532 | FALSE), /* pcrel_offset */ | |
| 1533 | ||
| 1534 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1535 | sym+add and the value of the thread pointer (r13). */ | |
| 1536 | HOWTO (R_PPC64_TPREL64, | |
| 1537 | 0, /* rightshift */ | |
| 1538 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1539 | 64, /* bitsize */ | |
| 1540 | FALSE, /* pc_relative */ | |
| 1541 | 0, /* bitpos */ | |
| 1542 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1543 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1544 | "R_PPC64_TPREL64", /* name */ | |
| 1545 | FALSE, /* partial_inplace */ | |
| 1546 | 0, /* src_mask */ | |
| 1547 | ONES (64), /* dst_mask */ | |
| 1548 | FALSE), /* pcrel_offset */ | |
| 1549 | ||
| 1550 | /* A 16 bit tprel reloc. */ | |
| 1551 | HOWTO (R_PPC64_TPREL16, | |
| 1552 | 0, /* rightshift */ | |
| 1553 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1554 | 16, /* bitsize */ | |
| 1555 | FALSE, /* pc_relative */ | |
| 1556 | 0, /* bitpos */ | |
| 1557 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1558 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1559 | "R_PPC64_TPREL16", /* name */ | |
| 1560 | FALSE, /* partial_inplace */ | |
| 1561 | 0, /* src_mask */ | |
| 1562 | 0xffff, /* dst_mask */ | |
| 1563 | FALSE), /* pcrel_offset */ | |
| 1564 | ||
| 1565 | /* Like TPREL16, but no overflow. */ | |
| 1566 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1567 | 0, /* rightshift */ | |
| 1568 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1569 | 16, /* bitsize */ | |
| 1570 | FALSE, /* pc_relative */ | |
| 1571 | 0, /* bitpos */ | |
| 1572 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1573 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1574 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1575 | FALSE, /* partial_inplace */ | |
| 1576 | 0, /* src_mask */ | |
| 1577 | 0xffff, /* dst_mask */ | |
| 1578 | FALSE), /* pcrel_offset */ | |
| 1579 | ||
| 1580 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1581 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1582 | 16, /* rightshift */ | |
| 1583 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1584 | 16, /* bitsize */ | |
| 1585 | FALSE, /* pc_relative */ | |
| 1586 | 0, /* bitpos */ | |
| f9c6b907 | 1587 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1588 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1589 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1590 | FALSE, /* partial_inplace */ | |
| 1591 | 0, /* src_mask */ | |
| 1592 | 0xffff, /* dst_mask */ | |
| 1593 | FALSE), /* pcrel_offset */ | |
| 1594 | ||
| 1595 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1596 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1597 | 16, /* rightshift */ | |
| 1598 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1599 | 16, /* bitsize */ | |
| 1600 | FALSE, /* pc_relative */ | |
| 1601 | 0, /* bitpos */ | |
| f9c6b907 | 1602 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1603 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1604 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1605 | FALSE, /* partial_inplace */ | |
| 1606 | 0, /* src_mask */ | |
| 1607 | 0xffff, /* dst_mask */ | |
| 1608 | FALSE), /* pcrel_offset */ | |
| 1609 | ||
| 1610 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1611 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1612 | 32, /* rightshift */ | |
| 1613 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1614 | 16, /* bitsize */ | |
| 1615 | FALSE, /* pc_relative */ | |
| 1616 | 0, /* bitpos */ | |
| 1617 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1618 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1619 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1620 | FALSE, /* partial_inplace */ | |
| 1621 | 0, /* src_mask */ | |
| 1622 | 0xffff, /* dst_mask */ | |
| 1623 | FALSE), /* pcrel_offset */ | |
| 1624 | ||
| 1625 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1626 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1627 | 32, /* rightshift */ | |
| 1628 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1629 | 16, /* bitsize */ | |
| 1630 | FALSE, /* pc_relative */ | |
| 1631 | 0, /* bitpos */ | |
| 1632 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1633 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1634 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1635 | FALSE, /* partial_inplace */ | |
| 1636 | 0, /* src_mask */ | |
| 1637 | 0xffff, /* dst_mask */ | |
| 1638 | FALSE), /* pcrel_offset */ | |
| 1639 | ||
| 1640 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1641 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1642 | 48, /* rightshift */ | |
| 1643 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1644 | 16, /* bitsize */ | |
| 1645 | FALSE, /* pc_relative */ | |
| 1646 | 0, /* bitpos */ | |
| 1647 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1648 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1649 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1650 | FALSE, /* partial_inplace */ | |
| 1651 | 0, /* src_mask */ | |
| 1652 | 0xffff, /* dst_mask */ | |
| 1653 | FALSE), /* pcrel_offset */ | |
| 1654 | ||
| 1655 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1656 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1657 | 48, /* rightshift */ | |
| 1658 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1659 | 16, /* bitsize */ | |
| 1660 | FALSE, /* pc_relative */ | |
| 1661 | 0, /* bitpos */ | |
| 1662 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1663 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1664 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1665 | FALSE, /* partial_inplace */ | |
| 1666 | 0, /* src_mask */ | |
| 1667 | 0xffff, /* dst_mask */ | |
| 1668 | FALSE), /* pcrel_offset */ | |
| 1669 | ||
| 1670 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1671 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1672 | 0, /* rightshift */ | |
| 1673 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1674 | 16, /* bitsize */ | |
| 1675 | FALSE, /* pc_relative */ | |
| 1676 | 0, /* bitpos */ | |
| 1677 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1678 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1679 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1680 | FALSE, /* partial_inplace */ | |
| 1681 | 0, /* src_mask */ | |
| 1682 | 0xfffc, /* dst_mask */ | |
| 1683 | FALSE), /* pcrel_offset */ | |
| 1684 | ||
| 1685 | /* Like TPREL16_DS, but no overflow. */ | |
| 1686 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1687 | 0, /* rightshift */ | |
| 1688 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1689 | 16, /* bitsize */ | |
| 1690 | FALSE, /* pc_relative */ | |
| 1691 | 0, /* bitpos */ | |
| 1692 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1693 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1694 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1695 | FALSE, /* partial_inplace */ | |
| 1696 | 0, /* src_mask */ | |
| 1697 | 0xfffc, /* dst_mask */ | |
| 1698 | FALSE), /* pcrel_offset */ | |
| 1699 | ||
| 1700 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1701 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1702 | to the first entry relative to the TOC base (r2). */ | |
| 1703 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1704 | 0, /* rightshift */ | |
| 1705 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1706 | 16, /* bitsize */ | |
| 1707 | FALSE, /* pc_relative */ | |
| 1708 | 0, /* bitpos */ | |
| 1709 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1710 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1711 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1712 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1713 | 0, /* src_mask */ |
| 1714 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1715 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1716 | |
| 411e1bfb AM |
1717 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1718 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1719 | 0, /* rightshift */ |
| 1720 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1721 | 16, /* bitsize */ | |
| b34976b6 | 1722 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1723 | 0, /* bitpos */ |
| 1724 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1725 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1726 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1727 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1728 | 0, /* src_mask */ |
| 1729 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1730 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1731 | |
| 411e1bfb AM |
1732 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1733 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1734 | 16, /* rightshift */ |
| 1735 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1736 | 16, /* bitsize */ | |
| b34976b6 | 1737 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1738 | 0, /* bitpos */ |
| f9c6b907 | 1739 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1740 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1741 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1742 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1743 | 0, /* src_mask */ |
| 1744 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1745 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1746 | |
| 411e1bfb AM |
1747 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1748 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1749 | 16, /* rightshift */ |
| 1750 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1751 | 16, /* bitsize */ | |
| b34976b6 | 1752 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1753 | 0, /* bitpos */ |
| f9c6b907 | 1754 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1755 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1756 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1757 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1758 | 0, /* src_mask */ |
| 1759 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1760 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1761 | |
| 411e1bfb AM |
1762 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1763 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1764 | first entry relative to the TOC base (r2). */ | |
| 1765 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1766 | 0, /* rightshift */ |
| 1767 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1768 | 16, /* bitsize */ | |
| b34976b6 | 1769 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1770 | 0, /* bitpos */ |
| 411e1bfb AM |
1771 | complain_overflow_signed, /* complain_on_overflow */ |
| 1772 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1773 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1774 | FALSE, /* partial_inplace */ |
| d006db6c | 1775 | 0, /* src_mask */ |
| 411e1bfb | 1776 | 0xffff, /* dst_mask */ |
| b34976b6 | 1777 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1778 | |
| 411e1bfb AM |
1779 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1780 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1781 | 0, /* rightshift */ |
| 1782 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1783 | 16, /* bitsize */ | |
| b34976b6 | 1784 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1785 | 0, /* bitpos */ |
| 411e1bfb AM |
1786 | complain_overflow_dont, /* complain_on_overflow */ |
| 1787 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1788 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1789 | FALSE, /* partial_inplace */ |
| d006db6c | 1790 | 0, /* src_mask */ |
| 411e1bfb | 1791 | 0xffff, /* dst_mask */ |
| b34976b6 | 1792 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1793 | |
| 411e1bfb AM |
1794 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1795 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1796 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1797 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1798 | 16, /* bitsize */ | |
| b34976b6 | 1799 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1800 | 0, /* bitpos */ |
| f9c6b907 | 1801 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1802 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1803 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1804 | FALSE, /* partial_inplace */ |
| d006db6c | 1805 | 0, /* src_mask */ |
| 411e1bfb | 1806 | 0xffff, /* dst_mask */ |
| b34976b6 | 1807 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1808 | |
| 411e1bfb AM |
1809 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1810 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1811 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1812 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1813 | 16, /* bitsize */ | |
| b34976b6 | 1814 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1815 | 0, /* bitpos */ |
| f9c6b907 | 1816 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1817 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1818 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1819 | FALSE, /* partial_inplace */ |
| d006db6c | 1820 | 0, /* src_mask */ |
| 411e1bfb | 1821 | 0xffff, /* dst_mask */ |
| b34976b6 | 1822 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1823 | |
| 411e1bfb AM |
1824 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1825 | the offset to the entry relative to the TOC base (r2). */ | |
| 1826 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1827 | 0, /* rightshift */ |
| 1828 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1829 | 16, /* bitsize */ | |
| b34976b6 | 1830 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1831 | 0, /* bitpos */ |
| 411e1bfb | 1832 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1833 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1834 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1835 | FALSE, /* partial_inplace */ |
| d006db6c | 1836 | 0, /* src_mask */ |
| 5bd4f169 | 1837 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1838 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1839 | |
| 411e1bfb AM |
1840 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1841 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1842 | 0, /* rightshift */ |
| c061c2d8 AM |
1843 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1844 | 16, /* bitsize */ | |
| b34976b6 | 1845 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1846 | 0, /* bitpos */ |
| 411e1bfb AM |
1847 | complain_overflow_dont, /* complain_on_overflow */ |
| 1848 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1849 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1850 | FALSE, /* partial_inplace */ |
| d006db6c | 1851 | 0, /* src_mask */ |
| c061c2d8 | 1852 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1853 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1854 | |
| 411e1bfb AM |
1855 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1856 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1857 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1858 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1859 | 16, /* bitsize */ | |
| b34976b6 | 1860 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1861 | 0, /* bitpos */ |
| f9c6b907 | 1862 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1863 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1864 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1865 | FALSE, /* partial_inplace */ |
| d006db6c | 1866 | 0, /* src_mask */ |
| 411e1bfb | 1867 | 0xffff, /* dst_mask */ |
| b34976b6 | 1868 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1869 | |
| 411e1bfb AM |
1870 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1871 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1872 | 16, /* rightshift */ | |
| 1873 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1874 | 16, /* bitsize */ | |
| 1875 | FALSE, /* pc_relative */ | |
| 1876 | 0, /* bitpos */ | |
| f9c6b907 | 1877 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1878 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1879 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1880 | FALSE, /* partial_inplace */ | |
| 1881 | 0, /* src_mask */ | |
| 1882 | 0xffff, /* dst_mask */ | |
| 1883 | FALSE), /* pcrel_offset */ | |
| 1884 | ||
| 1885 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1886 | offset to the entry relative to the TOC base (r2). */ | |
| 1887 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1888 | 0, /* rightshift */ |
| 1889 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1890 | 16, /* bitsize */ | |
| b34976b6 | 1891 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1892 | 0, /* bitpos */ |
| 1893 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1894 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1895 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1896 | FALSE, /* partial_inplace */ |
| d006db6c | 1897 | 0, /* src_mask */ |
| ad8e1ba5 | 1898 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1899 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1900 | |
| 411e1bfb AM |
1901 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1902 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1903 | 0, /* rightshift */ |
| 1904 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1905 | 16, /* bitsize */ | |
| b34976b6 | 1906 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1907 | 0, /* bitpos */ |
| 1908 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1909 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1910 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1911 | FALSE, /* partial_inplace */ |
| d006db6c | 1912 | 0, /* src_mask */ |
| ad8e1ba5 | 1913 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1914 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1915 | |
| 411e1bfb AM |
1916 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1917 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1918 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1919 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1920 | 16, /* bitsize */ | |
| b34976b6 | 1921 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1922 | 0, /* bitpos */ |
| f9c6b907 | 1923 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1924 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1925 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1926 | FALSE, /* partial_inplace */ |
| d006db6c | 1927 | 0, /* src_mask */ |
| 411e1bfb | 1928 | 0xffff, /* dst_mask */ |
| b34976b6 | 1929 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1930 | |
| 411e1bfb AM |
1931 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1932 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1933 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1934 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1935 | 16, /* bitsize */ | |
| b34976b6 | 1936 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1937 | 0, /* bitpos */ |
| f9c6b907 | 1938 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1939 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1940 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1941 | FALSE, /* partial_inplace */ |
| d006db6c | 1942 | 0, /* src_mask */ |
| 411e1bfb | 1943 | 0xffff, /* dst_mask */ |
| b34976b6 | 1944 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1945 | |
| 25f23106 AM |
1946 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1947 | 0, /* rightshift */ | |
| 1948 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1949 | 0, /* bitsize */ | |
| 1950 | FALSE, /* pc_relative */ | |
| 1951 | 0, /* bitpos */ | |
| 1952 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1953 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1954 | "R_PPC64_JMP_IREL", /* name */ | |
| 1955 | FALSE, /* partial_inplace */ | |
| 1956 | 0, /* src_mask */ | |
| 1957 | 0, /* dst_mask */ | |
| 1958 | FALSE), /* pcrel_offset */ | |
| 1959 | ||
| e054468f AM |
1960 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1961 | 0, /* rightshift */ | |
| 1962 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1963 | 64, /* bitsize */ | |
| 1964 | FALSE, /* pc_relative */ | |
| 1965 | 0, /* bitpos */ | |
| 1966 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1967 | bfd_elf_generic_reloc, /* special_function */ | |
| 1968 | "R_PPC64_IRELATIVE", /* name */ | |
| 1969 | FALSE, /* partial_inplace */ | |
| 1970 | 0, /* src_mask */ | |
| 1971 | ONES (64), /* dst_mask */ | |
| 1972 | FALSE), /* pcrel_offset */ | |
| 1973 | ||
| 25f23106 AM |
1974 | /* A 16 bit relative relocation. */ |
| 1975 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1976 | 0, /* rightshift */ | |
| 1977 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1978 | 16, /* bitsize */ | |
| 1979 | TRUE, /* pc_relative */ | |
| 1980 | 0, /* bitpos */ | |
| b80eed39 | 1981 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1982 | bfd_elf_generic_reloc, /* special_function */ |
| 1983 | "R_PPC64_REL16", /* name */ | |
| 1984 | FALSE, /* partial_inplace */ | |
| 1985 | 0, /* src_mask */ | |
| 1986 | 0xffff, /* dst_mask */ | |
| 1987 | TRUE), /* pcrel_offset */ | |
| 1988 | ||
| 1989 | /* A 16 bit relative relocation without overflow. */ | |
| 1990 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1991 | 0, /* rightshift */ | |
| 1992 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1993 | 16, /* bitsize */ | |
| 1994 | TRUE, /* pc_relative */ | |
| 1995 | 0, /* bitpos */ | |
| 1996 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1997 | bfd_elf_generic_reloc, /* special_function */ | |
| 1998 | "R_PPC64_REL16_LO", /* name */ | |
| 1999 | FALSE, /* partial_inplace */ | |
| 2000 | 0, /* src_mask */ | |
| 2001 | 0xffff, /* dst_mask */ | |
| 2002 | TRUE), /* pcrel_offset */ | |
| 2003 | ||
| 2004 | /* The high order 16 bits of a relative address. */ | |
| 2005 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2006 | 16, /* rightshift */ | |
| 2007 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2008 | 16, /* bitsize */ | |
| 2009 | TRUE, /* pc_relative */ | |
| 2010 | 0, /* bitpos */ | |
| f9c6b907 | 2011 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2012 | bfd_elf_generic_reloc, /* special_function */ |
| 2013 | "R_PPC64_REL16_HI", /* name */ | |
| 2014 | FALSE, /* partial_inplace */ | |
| 2015 | 0, /* src_mask */ | |
| 2016 | 0xffff, /* dst_mask */ | |
| 2017 | TRUE), /* pcrel_offset */ | |
| 2018 | ||
| 2019 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2020 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2021 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2022 | 16, /* rightshift */ | |
| 2023 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2024 | 16, /* bitsize */ | |
| 2025 | TRUE, /* pc_relative */ | |
| 2026 | 0, /* bitpos */ | |
| f9c6b907 | 2027 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2028 | ppc64_elf_ha_reloc, /* special_function */ |
| 2029 | "R_PPC64_REL16_HA", /* name */ | |
| 2030 | FALSE, /* partial_inplace */ | |
| 2031 | 0, /* src_mask */ | |
| 2032 | 0xffff, /* dst_mask */ | |
| 2033 | TRUE), /* pcrel_offset */ | |
| 2034 | ||
| a680de9a PB |
2035 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2036 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2037 | 16, /* rightshift */ | |
| 2038 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2039 | 16, /* bitsize */ | |
| 2040 | TRUE, /* pc_relative */ | |
| 2041 | 0, /* bitpos */ | |
| 2042 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2043 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2044 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2045 | FALSE, /* partial_inplace */ | |
| 2046 | 0, /* src_mask */ | |
| 2047 | 0x1fffc1, /* dst_mask */ | |
| 2048 | TRUE), /* pcrel_offset */ | |
| 2049 | ||
| 7ba71655 AM |
2050 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2051 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2052 | 16, /* rightshift */ | |
| 2053 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2054 | 16, /* bitsize */ | |
| 2055 | FALSE, /* pc_relative */ | |
| 2056 | 0, /* bitpos */ | |
| 2057 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2058 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2059 | "R_PPC64_16DX_HA", /* name */ | |
| 2060 | FALSE, /* partial_inplace */ | |
| 2061 | 0, /* src_mask */ | |
| 2062 | 0x1fffc1, /* dst_mask */ | |
| 2063 | FALSE), /* pcrel_offset */ | |
| 2064 | ||
| f9c6b907 AM |
2065 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2066 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2067 | 16, /* rightshift */ | |
| 2068 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2069 | 16, /* bitsize */ | |
| 2070 | FALSE, /* pc_relative */ | |
| 2071 | 0, /* bitpos */ | |
| 2072 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2073 | bfd_elf_generic_reloc, /* special_function */ | |
| 2074 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2075 | FALSE, /* partial_inplace */ | |
| 2076 | 0, /* src_mask */ | |
| 2077 | 0xffff, /* dst_mask */ | |
| 2078 | FALSE), /* pcrel_offset */ | |
| 2079 | ||
| 2080 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2081 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2082 | 16, /* rightshift */ | |
| 2083 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2084 | 16, /* bitsize */ | |
| 2085 | FALSE, /* pc_relative */ | |
| 2086 | 0, /* bitpos */ | |
| 2087 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2088 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2089 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2090 | FALSE, /* partial_inplace */ | |
| 2091 | 0, /* src_mask */ | |
| 2092 | 0xffff, /* dst_mask */ | |
| 2093 | FALSE), /* pcrel_offset */ | |
| 2094 | ||
| 2095 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2096 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2097 | 16, /* rightshift */ | |
| 2098 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2099 | 16, /* bitsize */ | |
| 2100 | FALSE, /* pc_relative */ | |
| 2101 | 0, /* bitpos */ | |
| 2102 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2103 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2104 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2105 | FALSE, /* partial_inplace */ | |
| 2106 | 0, /* src_mask */ | |
| 2107 | 0xffff, /* dst_mask */ | |
| 2108 | FALSE), /* pcrel_offset */ | |
| 2109 | ||
| 2110 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2111 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2112 | 16, /* rightshift */ | |
| 2113 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2114 | 16, /* bitsize */ | |
| 2115 | FALSE, /* pc_relative */ | |
| 2116 | 0, /* bitpos */ | |
| 2117 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2118 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2119 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2120 | FALSE, /* partial_inplace */ | |
| 2121 | 0, /* src_mask */ | |
| 2122 | 0xffff, /* dst_mask */ | |
| 2123 | FALSE), /* pcrel_offset */ | |
| 2124 | ||
| 2125 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2126 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2127 | 16, /* rightshift */ | |
| 2128 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2129 | 16, /* bitsize */ | |
| 2130 | FALSE, /* pc_relative */ | |
| 2131 | 0, /* bitpos */ | |
| 2132 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2133 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2134 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2135 | FALSE, /* partial_inplace */ | |
| 2136 | 0, /* src_mask */ | |
| 2137 | 0xffff, /* dst_mask */ | |
| 2138 | FALSE), /* pcrel_offset */ | |
| 2139 | ||
| 2140 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2141 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2142 | 16, /* rightshift */ | |
| 2143 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2144 | 16, /* bitsize */ | |
| 2145 | FALSE, /* pc_relative */ | |
| 2146 | 0, /* bitpos */ | |
| 2147 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2148 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2149 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2150 | FALSE, /* partial_inplace */ | |
| 2151 | 0, /* src_mask */ | |
| 2152 | 0xffff, /* dst_mask */ | |
| 2153 | FALSE), /* pcrel_offset */ | |
| 2154 | ||
| 006589cf AM |
2155 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2156 | HOWTO (R_PPC64_ENTRY, | |
| 2157 | 0, /* rightshift */ | |
| 2158 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2159 | 32, /* bitsize */ | |
| 2160 | FALSE, /* pc_relative */ | |
| 2161 | 0, /* bitpos */ | |
| 2162 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2163 | bfd_elf_generic_reloc, /* special_function */ | |
| 2164 | "R_PPC64_ENTRY", /* name */ | |
| 2165 | FALSE, /* partial_inplace */ | |
| 2166 | 0, /* src_mask */ | |
| 2167 | 0, /* dst_mask */ | |
| 2168 | FALSE), /* pcrel_offset */ | |
| 2169 | ||
| 45965137 AM |
2170 | /* Like ADDR64, but use local entry point of function. */ |
| 2171 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2172 | 0, /* rightshift */ | |
| 2173 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2174 | 64, /* bitsize */ | |
| 2175 | FALSE, /* pc_relative */ | |
| 2176 | 0, /* bitpos */ | |
| 2177 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2178 | bfd_elf_generic_reloc, /* special_function */ | |
| 2179 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2180 | FALSE, /* partial_inplace */ | |
| 2181 | 0, /* src_mask */ | |
| 2182 | ONES (64), /* dst_mask */ | |
| 2183 | FALSE), /* pcrel_offset */ | |
| 2184 | ||
| 5bd4f169 AM |
2185 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2186 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2187 | 0, /* rightshift */ | |
| 2188 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2189 | 0, /* bitsize */ | |
| b34976b6 | 2190 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2191 | 0, /* bitpos */ |
| 2192 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2193 | NULL, /* special_function */ | |
| 2194 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2195 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2196 | 0, /* src_mask */ |
| 2197 | 0, /* dst_mask */ | |
| b34976b6 | 2198 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2199 | |
| 2200 | /* GNU extension to record C++ vtable member usage. */ | |
| 2201 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2202 | 0, /* rightshift */ | |
| 2203 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2204 | 0, /* bitsize */ | |
| b34976b6 | 2205 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2206 | 0, /* bitpos */ |
| 2207 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2208 | NULL, /* special_function */ | |
| 2209 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2210 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2211 | 0, /* src_mask */ |
| 2212 | 0, /* dst_mask */ | |
| b34976b6 | 2213 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2214 | }; |
| 2215 | ||
| 2216 | \f | |
| 2217 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2218 | be done. */ | |
| 2219 | ||
| 2220 | static void | |
| 4ce794b7 | 2221 | ppc_howto_init (void) |
| 5bd4f169 AM |
2222 | { |
| 2223 | unsigned int i, type; | |
| 2224 | ||
| a4b6fadd | 2225 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2226 | { |
| 2227 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2228 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2229 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2230 | } | |
| 2231 | } | |
| 2232 | ||
| 2233 | static reloc_howto_type * | |
| 4ce794b7 AM |
2234 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2235 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2236 | { |
| 411e1bfb | 2237 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2238 | |
| 2239 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2240 | /* Initialize howto table if needed. */ | |
| 2241 | ppc_howto_init (); | |
| 2242 | ||
| 4ce794b7 | 2243 | switch (code) |
| 5bd4f169 AM |
2244 | { |
| 2245 | default: | |
| 4ce794b7 | 2246 | return NULL; |
| 5bd4f169 | 2247 | |
| 411e1bfb AM |
2248 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2249 | break; | |
| 2250 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2251 | break; | |
| 2252 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2253 | break; | |
| 2254 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2255 | break; | |
| 2256 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2257 | break; | |
| 2258 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2259 | break; | |
| f9c6b907 AM |
2260 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2261 | break; | |
| 411e1bfb | 2262 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2263 | break; |
| f9c6b907 AM |
2264 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2265 | break; | |
| 411e1bfb | 2266 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2267 | break; |
| 411e1bfb | 2268 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2269 | break; |
| 411e1bfb | 2270 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2315 | break; |
| 411e1bfb | 2316 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2317 | break; |
| 411e1bfb | 2318 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2319 | break; |
| 411e1bfb | 2320 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2327 | break; |
| 411e1bfb | 2328 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2329 | break; |
| 411e1bfb | 2330 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2331 | break; |
| 411e1bfb | 2332 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2333 | break; |
| 411e1bfb | 2334 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2335 | break; |
| 411e1bfb | 2336 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2337 | break; |
| 411e1bfb | 2338 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2339 | break; |
| 411e1bfb | 2340 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2341 | break; |
| 411e1bfb | 2342 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2343 | break; |
| 411e1bfb | 2344 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2345 | break; |
| 411e1bfb | 2346 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2347 | break; |
| 411e1bfb | 2348 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2349 | break; |
| 411e1bfb | 2350 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2351 | break; |
| 411e1bfb | 2352 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2353 | break; |
| 411e1bfb | 2354 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2355 | break; |
| 411e1bfb | 2356 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2357 | break; |
| 411e1bfb | 2358 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2359 | break; |
| 411e1bfb | 2360 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2361 | break; |
| 411e1bfb | 2362 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2363 | break; |
| 411e1bfb | 2364 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2365 | break; |
| 411e1bfb | 2366 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2367 | break; |
| 411e1bfb | 2368 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2369 | break; |
| 411e1bfb | 2370 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2371 | break; |
| 727fc41e AM |
2372 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2373 | break; | |
| 2374 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2375 | break; | |
| 411e1bfb | 2376 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2377 | break; |
| 411e1bfb | 2378 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2379 | break; |
| 411e1bfb | 2380 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2381 | break; |
| 411e1bfb | 2382 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2383 | break; |
| f9c6b907 AM |
2384 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2385 | break; | |
| 411e1bfb | 2386 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2387 | break; |
| f9c6b907 AM |
2388 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2389 | break; | |
| 411e1bfb | 2390 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2391 | break; |
| 411e1bfb AM |
2392 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2393 | break; | |
| 2394 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2395 | break; | |
| 2396 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2397 | break; | |
| f9c6b907 AM |
2398 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2399 | break; | |
| 411e1bfb AM |
2400 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2401 | break; | |
| f9c6b907 AM |
2402 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2403 | break; | |
| 411e1bfb AM |
2404 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2405 | break; | |
| 2406 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2407 | break; | |
| 2408 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2409 | break; | |
| 2410 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2413 | break; | |
| 2414 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2415 | break; | |
| 2416 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2417 | break; | |
| 2418 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2419 | break; | |
| 2420 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2421 | break; | |
| 2422 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2423 | break; | |
| 2424 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2425 | break; | |
| 2426 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2427 | break; | |
| 2428 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2429 | break; | |
| 2430 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2431 | break; | |
| 2432 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2433 | break; | |
| 2434 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2435 | break; | |
| 2436 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2437 | break; | |
| 2438 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2439 | break; | |
| 2440 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2441 | break; | |
| 2442 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2443 | break; | |
| 2444 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2445 | break; | |
| 2446 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2447 | break; | |
| 2448 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2449 | break; | |
| 2450 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2451 | break; | |
| 2452 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2453 | break; | |
| 2454 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2455 | break; | |
| 2456 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2457 | break; | |
| 2458 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2459 | break; | |
| 2460 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2461 | break; | |
| 25f23106 AM |
2462 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2463 | break; | |
| 2464 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2465 | break; | |
| 2466 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2467 | break; | |
| 2468 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2469 | break; | |
| 7ba71655 AM |
2470 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2471 | break; | |
| a680de9a PB |
2472 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2473 | break; | |
| 006589cf AM |
2474 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2475 | break; | |
| 45965137 AM |
2476 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2477 | break; | |
| 411e1bfb AM |
2478 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2479 | break; | |
| 2480 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2481 | break; |
| 2482 | } | |
| 2483 | ||
| 4ce794b7 | 2484 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2485 | }; |
| 2486 | ||
| 157090f7 AM |
2487 | static reloc_howto_type * |
| 2488 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2489 | const char *r_name) | |
| 2490 | { | |
| 2491 | unsigned int i; | |
| 2492 | ||
| a4b6fadd | 2493 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2494 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2495 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2496 | return &ppc64_elf_howto_raw[i]; | |
| 2497 | ||
| 2498 | return NULL; | |
| 2499 | } | |
| 2500 | ||
| 5bd4f169 AM |
2501 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2502 | ||
| 2503 | static void | |
| 4aef7643 | 2504 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2505 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2506 | { |
| 65f38f15 AM |
2507 | unsigned int type; |
| 2508 | ||
| ef60b7ff | 2509 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2510 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2511 | ppc_howto_init (); |
| 2512 | ||
| 65f38f15 | 2513 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2514 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2515 | { |
| 695344c0 | 2516 | /* xgettext:c-format */ |
| 871b3ab2 | 2517 | _bfd_error_handler (_("%pB: invalid relocation type %d"), |
| 4eca0228 | 2518 | abfd, (int) type); |
| 3ec2b351 | 2519 | type = R_PPC64_NONE; |
| d0fb9a8d | 2520 | } |
| 65f38f15 | 2521 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2522 | } |
| 2523 | ||
| 04c9666a | 2524 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2525 | |
| 2526 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2527 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2528 | void *data, asection *input_section, | |
| 2529 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2530 | { |
| a680de9a PB |
2531 | enum elf_ppc64_reloc_type r_type; |
| 2532 | long insn; | |
| 2533 | bfd_size_type octets; | |
| 3de43e7b | 2534 | bfd_vma value; |
| a680de9a | 2535 | |
| 805fc799 AM |
2536 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2537 | call the generic function. Any adjustment will be done at final | |
| 2538 | link time. */ | |
| 2539 | if (output_bfd != NULL) | |
| cedb70c5 | 2540 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2541 | input_section, output_bfd, error_message); |
| 2542 | ||
| 2543 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2544 | We won't actually be using the low 16 bits, so trashing them | |
| 2545 | doesn't matter. */ | |
| 2546 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2547 | r_type = reloc_entry->howto->type; |
| 2548 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2549 | return bfd_reloc_continue; | |
| 2550 | ||
| 2551 | value = 0; | |
| 2552 | if (!bfd_is_com_section (symbol->section)) | |
| 2553 | value = symbol->value; | |
| 2554 | value += (reloc_entry->addend | |
| 2555 | + symbol->section->output_offset | |
| 2556 | + symbol->section->output_section->vma); | |
| 2557 | value -= (reloc_entry->address | |
| 2558 | + input_section->output_offset | |
| 2559 | + input_section->output_section->vma); | |
| 3de43e7b | 2560 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2561 | |
| 2562 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2563 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2564 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2565 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2566 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2567 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2568 | return bfd_reloc_overflow; |
| 2569 | return bfd_reloc_ok; | |
| 805fc799 | 2570 | } |
| 5bd4f169 | 2571 | |
| 2441e016 AM |
2572 | static bfd_reloc_status_type |
| 2573 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2574 | void *data, asection *input_section, | |
| 2575 | bfd *output_bfd, char **error_message) | |
| 2576 | { | |
| 2577 | if (output_bfd != NULL) | |
| 2578 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2579 | input_section, output_bfd, error_message); | |
| 2580 | ||
| 699733f6 AM |
2581 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2582 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2583 | { |
| 2584 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2585 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2586 | NULL, NULL, FALSE); |
| 2441e016 AM |
2587 | if (dest != (bfd_vma) -1) |
| 2588 | reloc_entry->addend = dest - (symbol->value | |
| 2589 | + symbol->section->output_section->vma | |
| 2590 | + symbol->section->output_offset); | |
| 2591 | } | |
| 810d4e75 AM |
2592 | else |
| 2593 | { | |
| 2594 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2595 | ||
| 2596 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2597 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2598 | && abiversion (symbol->section->owner) >= 2) |
| 2599 | { | |
| 2600 | unsigned int i; | |
| 2601 | ||
| 2602 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2603 | { | |
| 2604 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2605 | ||
| 2606 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2607 | { | |
| 2608 | elfsym = (elf_symbol_type *) symdef; | |
| 2609 | break; | |
| 2610 | } | |
| 2611 | } | |
| 2612 | } | |
| 2613 | reloc_entry->addend | |
| 2614 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2615 | } | |
| 2441e016 AM |
2616 | return bfd_reloc_continue; |
| 2617 | } | |
| 2618 | ||
| 805fc799 | 2619 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2620 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2621 | void *data, asection *input_section, | |
| 2622 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2623 | { |
| 2624 | long insn; | |
| 04c9666a | 2625 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2626 | bfd_size_type octets; |
| 794e51c0 AM |
2627 | /* Assume 'at' branch hints. */ |
| 2628 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2629 | |
| 2630 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2631 | call the generic function. Any adjustment will be done at final | |
| 2632 | link time. */ | |
| 5bd4f169 | 2633 | if (output_bfd != NULL) |
| cedb70c5 | 2634 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2635 | input_section, output_bfd, error_message); |
| 2636 | ||
| 2637 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2638 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2639 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2640 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2641 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2642 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2643 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2644 | |
| 794e51c0 | 2645 | if (is_isa_v2) |
| 5bd4f169 | 2646 | { |
| 805fc799 AM |
2647 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2648 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2649 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2650 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2651 | insn |= 0x02 << 21; | |
| 2652 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2653 | insn |= 0x08 << 21; | |
| 2654 | else | |
| 2441e016 | 2655 | goto out; |
| 5bd4f169 | 2656 | } |
| 805fc799 AM |
2657 | else |
| 2658 | { | |
| 2659 | bfd_vma target = 0; | |
| 2660 | bfd_vma from; | |
| 5bd4f169 | 2661 | |
| 805fc799 AM |
2662 | if (!bfd_is_com_section (symbol->section)) |
| 2663 | target = symbol->value; | |
| 2664 | target += symbol->section->output_section->vma; | |
| 2665 | target += symbol->section->output_offset; | |
| 2666 | target += reloc_entry->addend; | |
| 5bd4f169 | 2667 | |
| 805fc799 AM |
2668 | from = (reloc_entry->address |
| 2669 | + input_section->output_offset | |
| 2670 | + input_section->output_section->vma); | |
| 5bd4f169 | 2671 | |
| 805fc799 AM |
2672 | /* Invert 'y' bit if not the default. */ |
| 2673 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2674 | insn ^= 0x01 << 21; | |
| 2675 | } | |
| 4ce794b7 | 2676 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2677 | out: |
| 2678 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2679 | input_section, output_bfd, error_message); | |
| 805fc799 | 2680 | } |
| 5bd4f169 | 2681 | |
| 805fc799 | 2682 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2683 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2684 | void *data, asection *input_section, | |
| 2685 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2686 | { |
| 2687 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2688 | call the generic function. Any adjustment will be done at final | |
| 2689 | link time. */ | |
| 2690 | if (output_bfd != NULL) | |
| cedb70c5 | 2691 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2692 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2693 | |
| 805fc799 AM |
2694 | /* Subtract the symbol section base address. */ |
| 2695 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2696 | return bfd_reloc_continue; |
| 2697 | } | |
| 2698 | ||
| 805fc799 | 2699 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2700 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2701 | void *data, asection *input_section, | |
| 2702 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2703 | { |
| 2704 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2705 | call the generic function. Any adjustment will be done at final | |
| 2706 | link time. */ | |
| 2707 | if (output_bfd != NULL) | |
| cedb70c5 | 2708 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2709 | input_section, output_bfd, error_message); |
| 2710 | ||
| 2711 | /* Subtract the symbol section base address. */ | |
| 2712 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2713 | ||
| 2714 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2715 | reloc_entry->addend += 0x8000; | |
| 2716 | return bfd_reloc_continue; | |
| 2717 | } | |
| 2718 | ||
| 2719 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2720 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2721 | void *data, asection *input_section, | |
| 2722 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2723 | { |
| 2724 | bfd_vma TOCstart; | |
| 2725 | ||
| 2726 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2727 | call the generic function. Any adjustment will be done at final | |
| 2728 | link time. */ | |
| 2729 | if (output_bfd != NULL) | |
| cedb70c5 | 2730 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2731 | input_section, output_bfd, error_message); |
| 2732 | ||
| 2733 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2734 | if (TOCstart == 0) | |
| 1c865ab2 | 2735 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2736 | |
| 2737 | /* Subtract the TOC base address. */ | |
| 2738 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2739 | return bfd_reloc_continue; | |
| 2740 | } | |
| 2741 | ||
| 2742 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2743 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2744 | void *data, asection *input_section, | |
| 2745 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2746 | { |
| 2747 | bfd_vma TOCstart; | |
| 2748 | ||
| 2749 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2750 | call the generic function. Any adjustment will be done at final | |
| 2751 | link time. */ | |
| 2752 | if (output_bfd != NULL) | |
| cedb70c5 | 2753 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2754 | input_section, output_bfd, error_message); |
| 2755 | ||
| 2756 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2757 | if (TOCstart == 0) | |
| 1c865ab2 | 2758 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2759 | |
| 2760 | /* Subtract the TOC base address. */ | |
| 2761 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2762 | ||
| 2763 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2764 | reloc_entry->addend += 0x8000; | |
| 2765 | return bfd_reloc_continue; | |
| 2766 | } | |
| 2767 | ||
| 2768 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2769 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2770 | void *data, asection *input_section, | |
| 2771 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2772 | { |
| 2773 | bfd_vma TOCstart; | |
| 2774 | bfd_size_type octets; | |
| 2775 | ||
| 2776 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2777 | call the generic function. Any adjustment will be done at final | |
| 2778 | link time. */ | |
| 2779 | if (output_bfd != NULL) | |
| cedb70c5 | 2780 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2781 | input_section, output_bfd, error_message); |
| 2782 | ||
| 2783 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2784 | if (TOCstart == 0) | |
| 1c865ab2 | 2785 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2786 | |
| 2787 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2788 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2789 | return bfd_reloc_ok; | |
| 2790 | } | |
| 2791 | ||
| 2792 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2793 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2794 | void *data, asection *input_section, | |
| 2795 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2796 | { |
| 2797 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2798 | call the generic function. Any adjustment will be done at final | |
| 2799 | link time. */ | |
| 2800 | if (output_bfd != NULL) | |
| cedb70c5 | 2801 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2802 | input_section, output_bfd, error_message); |
| 2803 | ||
| 2804 | if (error_message != NULL) | |
| 2805 | { | |
| 2806 | static char buf[60]; | |
| 2807 | sprintf (buf, "generic linker can't handle %s", | |
| 2808 | reloc_entry->howto->name); | |
| 2809 | *error_message = buf; | |
| 2810 | } | |
| 2811 | return bfd_reloc_dangerous; | |
| 2812 | } | |
| 2813 | ||
| 927be08e AM |
2814 | /* Track GOT entries needed for a given symbol. We might need more |
| 2815 | than one got entry per symbol. */ | |
| 2816 | struct got_entry | |
| 2817 | { | |
| 2818 | struct got_entry *next; | |
| 2819 | ||
| 2820 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2821 | bfd_vma addend; | |
| 2822 | ||
| 2823 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2824 | symbol referenced from different input files. This is to support | |
| 2825 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2826 | from one input file to another. After partitioning into TOC groups | |
| 2827 | we merge entries within the group. | |
| 2828 | ||
| 2829 | Point to the BFD owning this GOT entry. */ | |
| 2830 | bfd *owner; | |
| 2831 | ||
| 2832 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2833 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2834 | unsigned char tls_type; |
| 927be08e AM |
2835 | |
| 2836 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2837 | unsigned char is_indirect; |
| 927be08e AM |
2838 | |
| 2839 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2840 | union | |
| 2841 | { | |
| 2842 | bfd_signed_vma refcount; | |
| 2843 | bfd_vma offset; | |
| 2844 | struct got_entry *ent; | |
| 2845 | } got; | |
| 2846 | }; | |
| 2847 | ||
| 2848 | /* The same for PLT. */ | |
| 2849 | struct plt_entry | |
| 2850 | { | |
| 2851 | struct plt_entry *next; | |
| 2852 | ||
| 2853 | bfd_vma addend; | |
| 2854 | ||
| 2855 | union | |
| 2856 | { | |
| 2857 | bfd_signed_vma refcount; | |
| 2858 | bfd_vma offset; | |
| 2859 | } plt; | |
| 2860 | }; | |
| 2861 | ||
| e717da7e AM |
2862 | struct ppc64_elf_obj_tdata |
| 2863 | { | |
| 2864 | struct elf_obj_tdata elf; | |
| 2865 | ||
| 2866 | /* Shortcuts to dynamic linker sections. */ | |
| 2867 | asection *got; | |
| 2868 | asection *relgot; | |
| 2869 | ||
| b3fac117 AM |
2870 | /* Used during garbage collection. We attach global symbols defined |
| 2871 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2872 | asection *deleted_section; | |
| 81688140 | 2873 | |
| 927be08e | 2874 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2875 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2876 | struct got_entry tlsld_got; |
| 8860955f | 2877 | |
| 729eabd5 AM |
2878 | union { |
| 2879 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2880 | Elf_Internal_Rela *relocs; | |
| 2881 | ||
| 2882 | /* Section contents. */ | |
| 2883 | bfd_byte *contents; | |
| 2884 | } opd; | |
| d77c8a4b AM |
2885 | |
| 2886 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2887 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2888 | unsigned int has_small_toc_reloc : 1; |
| 2889 | ||
| 560c8763 AM |
2890 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2891 | instruction not one we handle. */ | |
| 2892 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2893 | }; |
| 2894 | ||
| 2895 | #define ppc64_elf_tdata(bfd) \ | |
| 2896 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2897 | ||
| 2898 | #define ppc64_tlsld_got(bfd) \ | |
| 2899 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2900 | ||
| 0c8d6e5c AM |
2901 | #define is_ppc64_elf(bfd) \ |
| 2902 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2903 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2904 | |
| e717da7e AM |
2905 | /* Override the generic function because we store some extras. */ |
| 2906 | ||
| 2907 | static bfd_boolean | |
| 2908 | ppc64_elf_mkobject (bfd *abfd) | |
| 2909 | { | |
| 0ffa91dd | 2910 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2911 | PPC64_ELF_DATA); |
| e717da7e AM |
2912 | } |
| 2913 | ||
| feee612b | 2914 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2915 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2916 | |
| b34976b6 | 2917 | static bfd_boolean |
| 4ce794b7 | 2918 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2919 | { |
| 14b57c7c AM |
2920 | if (!abfd->arch_info->the_default) |
| 2921 | return TRUE; | |
| 2922 | ||
| 2923 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2924 | { |
| 2925 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2926 | ||
| 2927 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2928 | { | |
| 2929 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2930 | abfd->arch_info = abfd->arch_info->next; | |
| 2931 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2932 | } | |
| 2933 | } | |
| 14b57c7c | 2934 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2935 | } |
| 2936 | ||
| d37c89e5 AM |
2937 | /* Support for core dump NOTE sections. */ |
| 2938 | ||
| 2939 | static bfd_boolean | |
| 2940 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2941 | { | |
| eea6121a | 2942 | size_t offset, size; |
| d37c89e5 AM |
2943 | |
| 2944 | if (note->descsz != 504) | |
| 2945 | return FALSE; | |
| 2946 | ||
| 2947 | /* pr_cursig */ | |
| 228e534f | 2948 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2949 | |
| 2950 | /* pr_pid */ | |
| 228e534f | 2951 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2952 | |
| 2953 | /* pr_reg */ | |
| 2954 | offset = 112; | |
| eea6121a | 2955 | size = 384; |
| d37c89e5 AM |
2956 | |
| 2957 | /* Make a ".reg/999" section. */ | |
| 2958 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2959 | size, note->descpos + offset); |
| d37c89e5 AM |
2960 | } |
| 2961 | ||
| 2962 | static bfd_boolean | |
| 2963 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2964 | { | |
| 2965 | if (note->descsz != 136) | |
| 2966 | return FALSE; | |
| 2967 | ||
| 228e534f | 2968 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2969 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2970 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2971 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2972 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2973 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2974 | ||
| 2975 | return TRUE; | |
| 2976 | } | |
| 2977 | ||
| 183e98be AM |
2978 | static char * |
| 2979 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2980 | ...) | |
| 2981 | { | |
| 2982 | switch (note_type) | |
| 2983 | { | |
| 2984 | default: | |
| 2985 | return NULL; | |
| 2986 | ||
| 2987 | case NT_PRPSINFO: | |
| 2988 | { | |
| 2989 | char data[136]; | |
| 2990 | va_list ap; | |
| 2991 | ||
| 2992 | va_start (ap, note_type); | |
| 75cd47ed | 2993 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2994 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2995 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2996 | va_end (ap); | |
| 2997 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2998 | "CORE", note_type, data, sizeof (data)); | |
| 2999 | } | |
| 3000 | ||
| 3001 | case NT_PRSTATUS: | |
| 3002 | { | |
| 3003 | char data[504]; | |
| 3004 | va_list ap; | |
| 3005 | long pid; | |
| 3006 | int cursig; | |
| 3007 | const void *greg; | |
| 3008 | ||
| 3009 | va_start (ap, note_type); | |
| 3010 | memset (data, 0, 112); | |
| 3011 | pid = va_arg (ap, long); | |
| 3012 | bfd_put_32 (abfd, pid, data + 32); | |
| 3013 | cursig = va_arg (ap, int); | |
| 3014 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3015 | greg = va_arg (ap, const void *); | |
| 3016 | memcpy (data + 112, greg, 384); | |
| 3017 | memset (data + 496, 0, 8); | |
| 3018 | va_end (ap); | |
| 3019 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3020 | "CORE", note_type, data, sizeof (data)); | |
| 3021 | } | |
| 3022 | } | |
| 3023 | } | |
| 3024 | ||
| 5d35169e AM |
3025 | /* Add extra PPC sections. */ |
| 3026 | ||
| b35d266b | 3027 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3028 | { |
| 07d6d2b8 AM |
3029 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3030 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3031 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 AM |
3032 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 3033 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3034 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 | 3035 | { NULL, 0, 0, 0, 0 } |
| 5d35169e AM |
3036 | }; |
| 3037 | ||
| 7c8fe5c4 AM |
3038 | enum _ppc64_sec_type { |
| 3039 | sec_normal = 0, | |
| 3040 | sec_opd = 1, | |
| 3041 | sec_toc = 2 | |
| 3042 | }; | |
| 3043 | ||
| f0abc2a1 AM |
3044 | struct _ppc64_elf_section_data |
| 3045 | { | |
| 3046 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3047 | |
| f0abc2a1 AM |
3048 | union |
| 3049 | { | |
| 51aecdc5 AM |
3050 | /* An array with one entry for each opd function descriptor, |
| 3051 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3052 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3053 | struct _opd_sec_data |
| 3054 | { | |
| 3055 | /* Points to the function code section for local opd entries. */ | |
| 3056 | asection **func_sec; | |
| 3057 | ||
| 3058 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3059 | long *adjust; | |
| 3060 | } opd; | |
| 7c8fe5c4 | 3061 | |
| 3a71aa26 AM |
3062 | /* An array for toc sections, indexed by offset/8. */ |
| 3063 | struct _toc_sec_data | |
| 3064 | { | |
| 3065 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3066 | unsigned *symndx; | |
| 3067 | ||
| 3068 | /* And the relocation addend. */ | |
| 3069 | bfd_vma *add; | |
| 3070 | } toc; | |
| 7c8fe5c4 AM |
3071 | } u; |
| 3072 | ||
| 3073 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3074 | |
| 7c8fe5c4 AM |
3075 | /* Flag set when small branches are detected. Used to |
| 3076 | select suitable defaults for the stub group size. */ | |
| 3077 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3078 | }; |
| 3079 | ||
| 3080 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3081 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3082 | |
| 3083 | static bfd_boolean | |
| 4ce794b7 | 3084 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3085 | { |
| f592407e AM |
3086 | if (!sec->used_by_bfd) |
| 3087 | { | |
| 3088 | struct _ppc64_elf_section_data *sdata; | |
| 3089 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3090 | |
| f592407e AM |
3091 | sdata = bfd_zalloc (abfd, amt); |
| 3092 | if (sdata == NULL) | |
| 3093 | return FALSE; | |
| 3094 | sec->used_by_bfd = sdata; | |
| 3095 | } | |
| f0abc2a1 AM |
3096 | |
| 3097 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3098 | } | |
| 4025353c | 3099 | |
| 74f0fb50 | 3100 | static struct _opd_sec_data * |
| 4025353c AM |
3101 | get_opd_info (asection * sec) |
| 3102 | { | |
| 3103 | if (sec != NULL | |
| 3104 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3105 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3106 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3107 | return NULL; |
| 3108 | } | |
| 90e3cdf2 JJ |
3109 | \f |
| 3110 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3111 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3112 | static asection *synthetic_opd; |
| 90e3cdf2 | 3113 | |
| 699733f6 | 3114 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3115 | |
| 3116 | static int | |
| 3117 | compare_symbols (const void *ap, const void *bp) | |
| 3118 | { | |
| 3119 | const asymbol *a = * (const asymbol **) ap; | |
| 3120 | const asymbol *b = * (const asymbol **) bp; | |
| 3121 | ||
| 699733f6 AM |
3122 | /* Section symbols first. */ |
| 3123 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3124 | return -1; |
| 699733f6 | 3125 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3126 | return 1; |
| 3127 | ||
| 699733f6 | 3128 | /* then .opd symbols. */ |
| cd285db5 AM |
3129 | if (synthetic_opd != NULL) |
| 3130 | { | |
| 3131 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3132 | && strcmp (b->section->name, ".opd") != 0) | |
| 3133 | return -1; | |
| 3134 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3135 | && strcmp (b->section->name, ".opd") == 0) | |
| 3136 | return 1; | |
| 3137 | } | |
| 90e3cdf2 | 3138 | |
| 699733f6 | 3139 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3140 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3141 | == (SEC_CODE | SEC_ALLOC) | |
| 3142 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3143 | != (SEC_CODE | SEC_ALLOC)) | |
| 3144 | return -1; | |
| 3145 | ||
| 3146 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3147 | != (SEC_CODE | SEC_ALLOC) | |
| 3148 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3149 | == (SEC_CODE | SEC_ALLOC)) | |
| 3150 | return 1; | |
| 3151 | ||
| 3152 | if (synthetic_relocatable) | |
| 3153 | { | |
| 3154 | if (a->section->id < b->section->id) | |
| 3155 | return -1; | |
| 3156 | ||
| 3157 | if (a->section->id > b->section->id) | |
| 3158 | return 1; | |
| 3159 | } | |
| 3160 | ||
| 3161 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3162 | return -1; | |
| 3163 | ||
| 3164 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3165 | return 1; | |
| 3166 | ||
| 4d35a0aa AM |
3167 | /* For syms with the same value, prefer strong dynamic global function |
| 3168 | syms over other syms. */ | |
| 3169 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3170 | return -1; | |
| 3171 | ||
| 3172 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3173 | return 1; | |
| 3174 | ||
| 3175 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3176 | return -1; | |
| 3177 | ||
| 3178 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3179 | return 1; | |
| 3180 | ||
| 3181 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3182 | return -1; | |
| 3183 | ||
| 3184 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3185 | return 1; | |
| 3186 | ||
| 3187 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3188 | return -1; | |
| 3189 | ||
| 3190 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3191 | return 1; | |
| 3192 | ||
| aaed6f5b | 3193 | return a > b; |
| 90e3cdf2 JJ |
3194 | } |
| 3195 | ||
| 699733f6 | 3196 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3197 | |
| 699733f6 | 3198 | static asymbol * |
| 7292b3ac | 3199 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3200 | { |
| 699733f6 | 3201 | long mid; |
| 90e3cdf2 | 3202 | |
| 7292b3ac | 3203 | if (id == (unsigned) -1) |
| 699733f6 AM |
3204 | { |
| 3205 | while (lo < hi) | |
| 3206 | { | |
| 3207 | mid = (lo + hi) >> 1; | |
| 3208 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3209 | lo = mid + 1; | |
| 3210 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3211 | hi = mid; | |
| 3212 | else | |
| 3213 | return syms[mid]; | |
| 3214 | } | |
| 3215 | } | |
| 3216 | else | |
| 3217 | { | |
| 3218 | while (lo < hi) | |
| 3219 | { | |
| 3220 | mid = (lo + hi) >> 1; | |
| 3221 | if (syms[mid]->section->id < id) | |
| 3222 | lo = mid + 1; | |
| 3223 | else if (syms[mid]->section->id > id) | |
| 3224 | hi = mid; | |
| 3225 | else if (syms[mid]->value < value) | |
| 3226 | lo = mid + 1; | |
| 3227 | else if (syms[mid]->value > value) | |
| 3228 | hi = mid; | |
| 3229 | else | |
| 3230 | return syms[mid]; | |
| 3231 | } | |
| 3232 | } | |
| 3233 | return NULL; | |
| 90e3cdf2 JJ |
3234 | } |
| 3235 | ||
| 468392fb AM |
3236 | static bfd_boolean |
| 3237 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3238 | { | |
| 3239 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3240 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3241 | && section->vma <= vma | |
| 3242 | && vma < section->vma + section->size); | |
| 3243 | } | |
| 3244 | ||
| 699733f6 | 3245 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3246 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3247 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3248 | |
| 3249 | static long | |
| a7535cf3 AM |
3250 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3251 | long static_count, asymbol **static_syms, | |
| 3252 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3253 | asymbol **ret) |
| 90e3cdf2 JJ |
3254 | { |
| 3255 | asymbol *s; | |
| 699733f6 AM |
3256 | long i; |
| 3257 | long count; | |
| 90e3cdf2 | 3258 | char *names; |
| a7535cf3 | 3259 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3260 | asection *opd = NULL; |
| 90e3cdf2 | 3261 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3262 | asymbol **syms; |
| ee67d69a | 3263 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3264 | |
| 3265 | *ret = NULL; | |
| 3266 | ||
| ee67d69a AM |
3267 | if (abi < 2) |
| 3268 | { | |
| 3269 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3270 | if (opd == NULL && abi == 1) | |
| 3271 | return 0; | |
| 3272 | } | |
| 90e3cdf2 | 3273 | |
| a5259595 AM |
3274 | syms = NULL; |
| 3275 | codesecsym = 0; | |
| 3276 | codesecsymend = 0; | |
| 3277 | secsymend = 0; | |
| 3278 | opdsymend = 0; | |
| 3279 | symcount = 0; | |
| 3280 | if (opd != NULL) | |
| c9727e01 | 3281 | { |
| a5259595 AM |
3282 | symcount = static_count; |
| 3283 | if (!relocatable) | |
| 3284 | symcount += dyn_count; | |
| 3285 | if (symcount == 0) | |
| 3286 | return 0; | |
| c9727e01 | 3287 | |
| a5259595 AM |
3288 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3289 | if (syms == NULL) | |
| 3290 | return -1; | |
| 90e3cdf2 | 3291 | |
| a5259595 AM |
3292 | if (!relocatable && static_count != 0 && dyn_count != 0) |
| 3293 | { | |
| 3294 | /* Use both symbol tables. */ | |
| 3295 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3296 | memcpy (syms + static_count, dyn_syms, | |
| 3297 | (dyn_count + 1) * sizeof (*syms)); | |
| 3298 | } | |
| 3299 | else if (!relocatable && static_count == 0) | |
| 3300 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3301 | else | |
| 3302 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 90e3cdf2 | 3303 | |
| a5259595 AM |
3304 | synthetic_relocatable = relocatable; |
| 3305 | synthetic_opd = opd; | |
| 3306 | qsort (syms, symcount, sizeof (*syms), compare_symbols); | |
| 90e3cdf2 | 3307 | |
| a5259595 AM |
3308 | if (!relocatable && symcount > 1) |
| 3309 | { | |
| 3310 | long j; | |
| 3311 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3312 | dynamic symbols. Actually, we only care about syms that have | |
| 3313 | different values, so trim any with the same value. */ | |
| 3314 | for (i = 1, j = 1; i < symcount; ++i) | |
| 3315 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3316 | != syms[i]->value + syms[i]->section->vma) | |
| 3317 | syms[j++] = syms[i]; | |
| 3318 | symcount = j; | |
| 3319 | } | |
| 699733f6 | 3320 | |
| a5259595 AM |
3321 | i = 0; |
| 3322 | /* Note that here and in compare_symbols we can't compare opd and | |
| 3323 | sym->section directly. With separate debug info files, the | |
| 3324 | symbols will be extracted from the debug file while abfd passed | |
| 3325 | to this function is the real binary. */ | |
| 3326 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 3327 | ++i; | |
| 3328 | codesecsym = i; | |
| 3329 | ||
| 3330 | for (; i < symcount; ++i) | |
| 3331 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | |
| 3332 | | SEC_THREAD_LOCAL)) | |
| 3333 | != (SEC_CODE | SEC_ALLOC)) | |
| 3334 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3335 | break; | |
| 3336 | codesecsymend = i; | |
| 3337 | ||
| 3338 | for (; i < symcount; ++i) | |
| 3339 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3340 | break; | |
| 3341 | secsymend = i; | |
| 3342 | ||
| 3343 | for (; i < symcount; ++i) | |
| 3344 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3345 | break; | |
| 3346 | opdsymend = i; | |
| 3347 | ||
| 3348 | for (; i < symcount; ++i) | |
| 3349 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3350 | != (SEC_CODE | SEC_ALLOC)) | |
| 3351 | break; | |
| 3352 | symcount = i; | |
| 3353 | } | |
| c9727e01 | 3354 | count = 0; |
| 90e3cdf2 | 3355 | |
| 699733f6 | 3356 | if (relocatable) |
| 90e3cdf2 | 3357 | { |
| 699733f6 AM |
3358 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3359 | arelent *r; | |
| 3360 | size_t size; | |
| 3361 | long relcount; | |
| 90e3cdf2 | 3362 | |
| 468392fb AM |
3363 | if (opdsymend == secsymend) |
| 3364 | goto done; | |
| 3365 | ||
| 699733f6 | 3366 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3367 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3368 | if (relcount == 0) |
| c9727e01 | 3369 | goto done; |
| 90e3cdf2 | 3370 | |
| 7356fed5 AM |
3371 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3372 | { | |
| 3373 | count = -1; | |
| 3374 | goto done; | |
| 3375 | } | |
| 3376 | ||
| 699733f6 | 3377 | size = 0; |
| 595da8c5 | 3378 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3379 | { |
| 3380 | asymbol *sym; | |
| 90e3cdf2 | 3381 | |
| 595da8c5 | 3382 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3383 | && r->address < syms[i]->value + opd->vma) |
| 3384 | ++r; | |
| 90e3cdf2 | 3385 | |
| 595da8c5 | 3386 | if (r == opd->relocation + relcount) |
| 699733f6 | 3387 | break; |
| 90e3cdf2 | 3388 | |
| 699733f6 AM |
3389 | if (r->address != syms[i]->value + opd->vma) |
| 3390 | continue; | |
| 90e3cdf2 | 3391 | |
| 699733f6 AM |
3392 | if (r->howto->type != R_PPC64_ADDR64) |
| 3393 | continue; | |
| 90e3cdf2 | 3394 | |
| 699733f6 AM |
3395 | sym = *r->sym_ptr_ptr; |
| 3396 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3397 | sym->section->id, sym->value + r->addend)) | |
| 3398 | { | |
| 3399 | ++count; | |
| 3400 | size += sizeof (asymbol); | |
| 3401 | size += strlen (syms[i]->name) + 2; | |
| 3402 | } | |
| 3403 | } | |
| 90e3cdf2 | 3404 | |
| c4b0b099 AM |
3405 | if (size == 0) |
| 3406 | goto done; | |
| 699733f6 AM |
3407 | s = *ret = bfd_malloc (size); |
| 3408 | if (s == NULL) | |
| 3409 | { | |
| 7356fed5 | 3410 | count = -1; |
| c9727e01 | 3411 | goto done; |
| 699733f6 | 3412 | } |
| 90e3cdf2 | 3413 | |
| 699733f6 | 3414 | names = (char *) (s + count); |
| 90e3cdf2 | 3415 | |
| 595da8c5 | 3416 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3417 | { |
| 699733f6 | 3418 | asymbol *sym; |
| 90e3cdf2 | 3419 | |
| 595da8c5 | 3420 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3421 | && r->address < syms[i]->value + opd->vma) |
| 3422 | ++r; | |
| 90e3cdf2 | 3423 | |
| 595da8c5 | 3424 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3425 | break; |
| 3426 | ||
| 3427 | if (r->address != syms[i]->value + opd->vma) | |
| 3428 | continue; | |
| 3429 | ||
| 3430 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3431 | continue; | |
| 90e3cdf2 | 3432 | |
| 699733f6 AM |
3433 | sym = *r->sym_ptr_ptr; |
| 3434 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3435 | sym->section->id, sym->value + r->addend)) | |
| 3436 | { | |
| 3437 | size_t len; | |
| 3438 | ||
| 3439 | *s = *syms[i]; | |
| 6ba2a415 | 3440 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3441 | s->section = sym->section; |
| 3442 | s->value = sym->value + r->addend; | |
| 3443 | s->name = names; | |
| 3444 | *names++ = '.'; | |
| 3445 | len = strlen (syms[i]->name); | |
| 3446 | memcpy (names, syms[i]->name, len + 1); | |
| 3447 | names += len + 1; | |
| 6f610d07 UW |
3448 | /* Have udata.p point back to the original symbol this |
| 3449 | synthetic symbol was derived from. */ | |
| 3450 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3451 | s++; |
| 3452 | } | |
| 3453 | } | |
| 3454 | } | |
| 3455 | else | |
| 90e3cdf2 | 3456 | { |
| 468392fb | 3457 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3458 | bfd_byte *contents = NULL; |
| 699733f6 | 3459 | size_t size; |
| 468392fb AM |
3460 | long plt_count = 0; |
| 3461 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3462 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3463 | arelent *p; | |
| 90e3cdf2 | 3464 | |
| ee67d69a | 3465 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3466 | { |
| c4b0b099 AM |
3467 | free_contents_and_exit_err: |
| 3468 | count = -1; | |
| ee67d69a | 3469 | free_contents_and_exit: |
| 699733f6 | 3470 | if (contents) |
| ee67d69a | 3471 | free (contents); |
| c9727e01 | 3472 | goto done; |
| 699733f6 | 3473 | } |
| 90e3cdf2 | 3474 | |
| 699733f6 AM |
3475 | size = 0; |
| 3476 | for (i = secsymend; i < opdsymend; ++i) | |
| 3477 | { | |
| 3478 | bfd_vma ent; | |
| 90e3cdf2 | 3479 | |
| 5ef11c02 AM |
3480 | /* Ignore bogus symbols. */ |
| 3481 | if (syms[i]->value > opd->size - 8) | |
| 3482 | continue; | |
| 3483 | ||
| 699733f6 AM |
3484 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3485 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3486 | { | |
| 3487 | ++count; | |
| 3488 | size += sizeof (asymbol); | |
| 3489 | size += strlen (syms[i]->name) + 2; | |
| 3490 | } | |
| 3491 | } | |
| 90e3cdf2 | 3492 | |
| 468392fb | 3493 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3494 | if (dyn_count != 0 |
| 3495 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3496 | { |
| 3497 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3498 | size_t extdynsize; | |
| 3499 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3500 | ||
| 3501 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3502 | goto free_contents_and_exit_err; |
| 468392fb AM |
3503 | |
| 3504 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3505 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3506 | ||
| 3507 | extdyn = dynbuf; | |
| 3508 | extdynend = extdyn + dynamic->size; | |
| 3509 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3510 | { | |
| 3511 | Elf_Internal_Dyn dyn; | |
| 3512 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3513 | ||
| 3514 | if (dyn.d_tag == DT_NULL) | |
| 3515 | break; | |
| 3516 | ||
| 3517 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3518 | { | |
| 9e390558 AM |
3519 | /* The first glink stub starts at DT_PPC64_GLINK plus 32. |
| 3520 | See comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3521 | glink_vma = dyn.d_un.d_val + 8 * 4; | |
| 468392fb AM |
3522 | /* The .glink section usually does not survive the final |
| 3523 | link; search for the section (usually .text) where the | |
| 3524 | glink stubs now reside. */ | |
| 3525 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3526 | &glink_vma); | |
| 3527 | break; | |
| 3528 | } | |
| 3529 | } | |
| 3530 | ||
| 3531 | free (dynbuf); | |
| 3532 | } | |
| 3533 | ||
| 3534 | if (glink != NULL) | |
| 3535 | { | |
| 3536 | /* Determine __glink trampoline by reading the relative branch | |
| 3537 | from the first glink stub. */ | |
| 3538 | bfd_byte buf[4]; | |
| b9e5796b AM |
3539 | unsigned int off = 0; |
| 3540 | ||
| 3541 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3542 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3543 | { |
| 3544 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3545 | insn ^= B_DOT; | |
| 3546 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3547 | { |
| 3548 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3549 | break; | |
| 3550 | } | |
| 3551 | off += 4; | |
| 3552 | if (off > 4) | |
| 3553 | break; | |
| 468392fb AM |
3554 | } |
| 3555 | ||
| 3556 | if (resolv_vma) | |
| 3557 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3558 | |
| 066ee829 AM |
3559 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3560 | if (relplt != NULL) | |
| 3561 | { | |
| 3562 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3563 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3564 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3565 | |
| 066ee829 AM |
3566 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3567 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3568 | |
| 066ee829 AM |
3569 | p = relplt->relocation; |
| 3570 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3571 | { |
| 3572 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3573 | if (p->addend != 0) | |
| 3574 | size += sizeof ("+0x") - 1 + 16; | |
| 3575 | } | |
| 066ee829 | 3576 | } |
| 468392fb AM |
3577 | } |
| 3578 | ||
| c4b0b099 AM |
3579 | if (size == 0) |
| 3580 | goto free_contents_and_exit; | |
| 699733f6 AM |
3581 | s = *ret = bfd_malloc (size); |
| 3582 | if (s == NULL) | |
| c4b0b099 | 3583 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3584 | |
| 468392fb | 3585 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3586 | |
| 699733f6 | 3587 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3588 | { |
| 699733f6 | 3589 | bfd_vma ent; |
| 90e3cdf2 | 3590 | |
| 5ef11c02 AM |
3591 | if (syms[i]->value > opd->size - 8) |
| 3592 | continue; | |
| 3593 | ||
| 699733f6 AM |
3594 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3595 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3596 | { |
| c9727e01 | 3597 | long lo, hi; |
| 699733f6 | 3598 | size_t len; |
| c9727e01 | 3599 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3600 | |
| 699733f6 AM |
3601 | *s = *syms[i]; |
| 3602 | lo = codesecsym; | |
| 3603 | hi = codesecsymend; | |
| 3604 | while (lo < hi) | |
| 3605 | { | |
| c9727e01 | 3606 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3607 | if (syms[mid]->section->vma < ent) |
| 3608 | lo = mid + 1; | |
| 3609 | else if (syms[mid]->section->vma > ent) | |
| 3610 | hi = mid; | |
| 3611 | else | |
| c9727e01 AM |
3612 | { |
| 3613 | sec = syms[mid]->section; | |
| 3614 | break; | |
| 3615 | } | |
| 699733f6 AM |
3616 | } |
| 3617 | ||
| c9727e01 | 3618 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3619 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3620 | |
| 3621 | for (; sec != NULL; sec = sec->next) | |
| 3622 | { | |
| 3623 | if (sec->vma > ent) | |
| 3624 | break; | |
| 63524580 JK |
3625 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3626 | info file. */ | |
| 3627 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3628 | break; |
| 3629 | if ((sec->flags & SEC_CODE) != 0) | |
| 3630 | s->section = sec; | |
| 3631 | } | |
| 6ba2a415 | 3632 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3633 | s->value = ent - s->section->vma; |
| 3634 | s->name = names; | |
| 3635 | *names++ = '.'; | |
| 3636 | len = strlen (syms[i]->name); | |
| 3637 | memcpy (names, syms[i]->name, len + 1); | |
| 3638 | names += len + 1; | |
| 6f610d07 UW |
3639 | /* Have udata.p point back to the original symbol this |
| 3640 | synthetic symbol was derived from. */ | |
| 3641 | s->udata.p = syms[i]; | |
| 699733f6 | 3642 | s++; |
| 90e3cdf2 | 3643 | } |
| 90e3cdf2 | 3644 | } |
| 699733f6 | 3645 | free (contents); |
| 468392fb AM |
3646 | |
| 3647 | if (glink != NULL && relplt != NULL) | |
| 3648 | { | |
| 3649 | if (resolv_vma) | |
| 3650 | { | |
| 3651 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3652 | memset (s, 0, sizeof *s); |
| 468392fb | 3653 | s->the_bfd = abfd; |
| 6ba2a415 | 3654 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3655 | s->section = glink; |
| 3656 | s->value = resolv_vma - glink->vma; | |
| 3657 | s->name = names; | |
| 3658 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3659 | names += sizeof ("__glink_PLTresolve"); | |
| 3660 | s++; | |
| 3661 | count++; | |
| 3662 | } | |
| 3663 | ||
| 3664 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3665 | stub rather than on the glink branch table entry. The | |
| 3666 | objdump disassembler would then use a sensible symbol | |
| 3667 | name on plt calls. The difficulty in doing so is | |
| 3668 | a) finding the stubs, and, | |
| 3669 | b) matching stubs against plt entries, and, | |
| 3670 | c) there can be multiple stubs for a given plt entry. | |
| 3671 | ||
| 3672 | Solving (a) could be done by code scanning, but older | |
| 3673 | ppc64 binaries used different stubs to current code. | |
| 3674 | (b) is the tricky one since you need to known the toc | |
| 3675 | pointer for at least one function that uses a pic stub to | |
| 3676 | be able to calculate the plt address referenced. | |
| 3677 | (c) means gdb would need to set multiple breakpoints (or | |
| 3678 | find the glink branch itself) when setting breakpoints | |
| 3679 | for pending shared library loads. */ | |
| 3680 | p = relplt->relocation; | |
| 3681 | for (i = 0; i < plt_count; i++, p++) | |
| 3682 | { | |
| 3683 | size_t len; | |
| 3684 | ||
| 3685 | *s = **p->sym_ptr_ptr; | |
| 3686 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3687 | we are defining a symbol, ensure one of them is set. */ | |
| 3688 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3689 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3690 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3691 | s->section = glink; |
| 3692 | s->value = glink_vma - glink->vma; | |
| 3693 | s->name = names; | |
| 3694 | s->udata.p = NULL; | |
| 3695 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3696 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3697 | names += len; | |
| e054468f AM |
3698 | if (p->addend != 0) |
| 3699 | { | |
| 3700 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3701 | names += sizeof ("+0x") - 1; | |
| 3702 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3703 | names += strlen (names); | |
| 3704 | } | |
| 468392fb AM |
3705 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3706 | names += sizeof ("@plt"); | |
| 3707 | s++; | |
| b9e5796b AM |
3708 | if (abi < 2) |
| 3709 | { | |
| 3710 | glink_vma += 8; | |
| 3711 | if (i >= 0x8000) | |
| 3712 | glink_vma += 4; | |
| 3713 | } | |
| 3714 | else | |
| 468392fb AM |
3715 | glink_vma += 4; |
| 3716 | } | |
| 3717 | count += plt_count; | |
| 3718 | } | |
| 90e3cdf2 JJ |
3719 | } |
| 3720 | ||
| c9727e01 | 3721 | done: |
| a7535cf3 | 3722 | free (syms); |
| 90e3cdf2 JJ |
3723 | return count; |
| 3724 | } | |
| 5bd4f169 | 3725 | \f |
| 65f38f15 AM |
3726 | /* The following functions are specific to the ELF linker, while |
| 3727 | functions above are used generally. Those named ppc64_elf_* are | |
| 3728 | called by the main ELF linker code. They appear in this file more | |
| 3729 | or less in the order in which they are called. eg. | |
| 3730 | ppc64_elf_check_relocs is called early in the link process, | |
| 3731 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3732 | called. |
| 3733 | ||
| 3734 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3735 | functions have both a function code symbol and a function descriptor | |
| 3736 | symbol. A call to foo in a relocatable object file looks like: | |
| 3737 | ||
| 3738 | . .text | |
| 3739 | . x: | |
| 3740 | . bl .foo | |
| 3741 | . nop | |
| 3742 | ||
| 3743 | The function definition in another object file might be: | |
| 3744 | ||
| 3745 | . .section .opd | |
| 3746 | . foo: .quad .foo | |
| 3747 | . .quad .TOC.@tocbase | |
| 3748 | . .quad 0 | |
| 3749 | . | |
| 3750 | . .text | |
| 3751 | . .foo: blr | |
| 3752 | ||
| 3753 | When the linker resolves the call during a static link, the branch | |
| 3754 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3755 | If the function definition is in a shared library, things are a little | |
| 3756 | different: The call goes via a plt call stub, the opd information gets | |
| 3757 | copied to the plt, and the linker patches the nop. | |
| 3758 | ||
| 3759 | . x: | |
| 3760 | . bl .foo_stub | |
| 3761 | . ld 2,40(1) | |
| 3762 | . | |
| 3763 | . | |
| 3764 | . .foo_stub: | |
| 71a39c98 AM |
3765 | . std 2,40(1) # in practice, the call stub |
| 3766 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3767 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3768 | . ld 12,0(11) | |
| 3769 | . ld 2,8(11) | |
| 3770 | . mtctr 12 | |
| 3771 | . ld 11,16(11) | |
| e86ce104 AM |
3772 | . bctr |
| 3773 | . | |
| 3774 | . .section .plt | |
| 3775 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3776 | ||
| 3777 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3778 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3779 | copying. | |
| 3780 | ||
| 3781 | What are the difficulties here? Well, firstly, the relocations | |
| 3782 | examined by the linker in check_relocs are against the function code | |
| 3783 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3784 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3785 | to carefully copy dynamic link information from one symbol to the other. | |
| 3786 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3787 | symbol as is normal for most other backends. We need foo dynamic | |
| 3788 | instead, at least for an application final link. However, when | |
| 3789 | creating a shared library containing foo, we need to have both symbols | |
| 3790 | dynamic so that references to .foo are satisfied during the early | |
| 3791 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3792 | definition from some other object, eg. a static library. |
| 3793 | ||
| 3794 | Update: As of August 2004, we support a new convention. Function | |
| 3795 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3796 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3797 | |
| 7c8bbca5 AM |
3798 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3799 | function selects those that must be copied when linking a shared | |
| 3800 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3801 | |
| 1d483afe AM |
3802 | static int |
| 3803 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3804 | enum elf_ppc64_reloc_type r_type) | |
| 3805 | { | |
| 3806 | switch (r_type) | |
| 3807 | { | |
| 3808 | default: | |
| 7c8bbca5 AM |
3809 | /* Only relative relocs can be resolved when the object load |
| 3810 | address isn't fixed. DTPREL64 is excluded because the | |
| 3811 | dynamic linker needs to differentiate global dynamic from | |
| 3812 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3813 | return 1; |
| 3814 | ||
| 3815 | case R_PPC64_REL32: | |
| 3816 | case R_PPC64_REL64: | |
| 3817 | case R_PPC64_REL30: | |
| 3818 | return 0; | |
| 3819 | ||
| 3820 | case R_PPC64_TPREL16: | |
| 3821 | case R_PPC64_TPREL16_LO: | |
| 3822 | case R_PPC64_TPREL16_HI: | |
| 3823 | case R_PPC64_TPREL16_HA: | |
| 3824 | case R_PPC64_TPREL16_DS: | |
| 3825 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3826 | case R_PPC64_TPREL16_HIGH: |
| 3827 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3828 | case R_PPC64_TPREL16_HIGHER: |
| 3829 | case R_PPC64_TPREL16_HIGHERA: | |
| 3830 | case R_PPC64_TPREL16_HIGHEST: | |
| 3831 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3832 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3833 | /* These relocations are relative but in a shared library the |
| 3834 | linker doesn't know the thread pointer base. */ | |
| 3835 | return bfd_link_dll (info); | |
| 1d483afe AM |
3836 | } |
| 3837 | } | |
| 65f38f15 | 3838 | |
| f4656909 AM |
3839 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3840 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3841 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3842 | shared lib. With code that gcc generates, it's vital that this be |
| 3843 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3844 | the address of a function descriptor, which resides in the .opd | |
| 3845 | section. gcc uses the descriptor directly rather than going via the | |
| 3846 | GOT as some other ABI's do, which means that initialized function | |
| 3847 | pointers must reference the descriptor. Thus, a function pointer | |
| 3848 | initialized to the address of a function in a shared library will | |
| 3849 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3850 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3851 | presents a problem as a plt entry for that function is also |
| 3852 | initialized from the function descriptor symbol and the copy reloc | |
| 3853 | may not be initialized first. */ | |
| a23b6845 | 3854 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3855 | |
| 721956f4 | 3856 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3857 | string. */ |
| 3858 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3859 | |
| 3860 | /* Linker stubs. | |
| 3861 | ppc_stub_long_branch: | |
| 3862 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3863 | destination, but a 24 bit branch in a stub section will reach. | |
| 3864 | . b dest | |
| 3865 | ||
| 3866 | ppc_stub_plt_branch: | |
| 3867 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3868 | reach its destination. | |
| 71a39c98 AM |
3869 | . addis %r11,%r2,xxx@toc@ha |
| 3870 | . ld %r12,xxx@toc@l(%r11) | |
| 3871 | . mtctr %r12 | |
| 721956f4 AM |
3872 | . bctr |
| 3873 | ||
| 3874 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3875 | Used to call a function in a shared library. If it so happens that |
| 3876 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3877 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3878 | . std %r2,40(%r1) |
| 71a39c98 AM |
3879 | . addis %r11,%r2,xxx@toc@ha |
| 3880 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3881 | . mtctr %r12 | |
| 3882 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3883 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3884 | . bctr |
| ad8e1ba5 AM |
3885 | |
| 3886 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3887 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3888 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3889 | . std %r2,40(%r1) | |
| 3890 | . addis %r2,%r2,off@ha | |
| 3891 | . addi %r2,%r2,off@l | |
| 3892 | . b dest | |
| 3893 | ||
| 3894 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3895 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3896 | . addis %r11,%r2,xxx@toc@ha |
| 3897 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3898 | . addis %r2,%r2,off@ha |
| 3899 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3900 | . mtctr %r12 |
| ad8e1ba5 | 3901 | . bctr |
| ac2df442 AM |
3902 | |
| 3903 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3904 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3905 | */ |
| 3906 | ||
| 3907 | enum ppc_stub_type { | |
| 3908 | ppc_stub_none, | |
| 3909 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3910 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3911 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3912 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3913 | ppc_stub_plt_call, |
| 7341d5e2 | 3914 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3915 | ppc_stub_global_entry, |
| 3916 | ppc_stub_save_res | |
| 721956f4 AM |
3917 | }; |
| 3918 | ||
| 6f20ed8a AM |
3919 | /* Information on stub grouping. */ |
| 3920 | struct map_stub | |
| 3921 | { | |
| 3922 | /* The stub section. */ | |
| 3923 | asection *stub_sec; | |
| 3924 | /* This is the section to which stubs in the group will be attached. */ | |
| 3925 | asection *link_sec; | |
| a4b6fadd AM |
3926 | /* Next group. */ |
| 3927 | struct map_stub *next; | |
| 3928 | /* Whether to emit a copy of register save/restore functions in this | |
| 3929 | group. */ | |
| 3930 | int needs_save_res; | |
| d4aaa2a0 AM |
3931 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 3932 | or -1u if no such stub with bctrl exists. */ | |
| 3933 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
3934 | }; |
| 3935 | ||
| 721956f4 AM |
3936 | struct ppc_stub_hash_entry { |
| 3937 | ||
| 3938 | /* Base hash table entry structure. */ | |
| 3939 | struct bfd_hash_entry root; | |
| 3940 | ||
| ad8e1ba5 AM |
3941 | enum ppc_stub_type stub_type; |
| 3942 | ||
| 6f20ed8a AM |
3943 | /* Group information. */ |
| 3944 | struct map_stub *group; | |
| 721956f4 AM |
3945 | |
| 3946 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3947 | bfd_vma stub_offset; | |
| 3948 | ||
| 3949 | /* Given the symbol's value and its section we can determine its final | |
| 3950 | value when building the stubs (so the stub knows where to jump. */ | |
| 3951 | bfd_vma target_value; | |
| 3952 | asection *target_section; | |
| 3953 | ||
| 721956f4 AM |
3954 | /* The symbol table entry, if any, that this was derived from. */ |
| 3955 | struct ppc_link_hash_entry *h; | |
| e054468f | 3956 | struct plt_entry *plt_ent; |
| 721956f4 | 3957 | |
| 6911b7dc AM |
3958 | /* Symbol st_other. */ |
| 3959 | unsigned char other; | |
| 721956f4 AM |
3960 | }; |
| 3961 | ||
| 3962 | struct ppc_branch_hash_entry { | |
| 3963 | ||
| 3964 | /* Base hash table entry structure. */ | |
| 3965 | struct bfd_hash_entry root; | |
| 3966 | ||
| c456f082 | 3967 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3968 | unsigned int offset; |
| 3969 | ||
| 3970 | /* Generation marker. */ | |
| 3971 | unsigned int iter; | |
| 3972 | }; | |
| 65f38f15 | 3973 | |
| 19e08130 AM |
3974 | /* Used to track dynamic relocations for local symbols. */ |
| 3975 | struct ppc_dyn_relocs | |
| 3976 | { | |
| 3977 | struct ppc_dyn_relocs *next; | |
| 3978 | ||
| 3979 | /* The input section of the reloc. */ | |
| 3980 | asection *sec; | |
| 3981 | ||
| 3982 | /* Total number of relocs copied for the input section. */ | |
| 3983 | unsigned int count : 31; | |
| 3984 | ||
| 3985 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3986 | unsigned int ifunc : 1; | |
| 3987 | }; | |
| 3988 | ||
| 65f38f15 AM |
3989 | struct ppc_link_hash_entry |
| 3990 | { | |
| 3991 | struct elf_link_hash_entry elf; | |
| 3992 | ||
| b3fac117 AM |
3993 | union { |
| 3994 | /* A pointer to the most recently used stub hash entry against this | |
| 3995 | symbol. */ | |
| 3996 | struct ppc_stub_hash_entry *stub_cache; | |
| 3997 | ||
| 3998 | /* A pointer to the next symbol starting with a '.' */ | |
| 3999 | struct ppc_link_hash_entry *next_dot_sym; | |
| 4000 | } u; | |
| 721956f4 | 4001 | |
| 65f38f15 | 4002 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4003 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4004 | |
| 721956f4 | 4005 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4006 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4007 | |
| e86ce104 AM |
4008 | /* Flag function code and descriptor symbols. */ |
| 4009 | unsigned int is_func:1; | |
| 4010 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4011 | unsigned int fake:1; |
| 411e1bfb | 4012 | |
| c5614fa4 AM |
4013 | /* Whether global opd/toc sym has been adjusted or not. |
| 4014 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4015 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4016 | unsigned int adjust_done:1; |
| 4017 | ||
| a4b6fadd AM |
4018 | /* Set if this is an out-of-line register save/restore function, |
| 4019 | with non-standard calling convention. */ | |
| 4020 | unsigned int save_res:1; | |
| 4021 | ||
| 8b5f1ed8 AM |
4022 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4023 | even when the duplicate symbol does not provide a definition. */ | |
| 4024 | unsigned int non_zero_localentry:1; | |
| 4025 | ||
| 411e1bfb | 4026 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
4027 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 4028 | corresponding relocs are encountered during check_relocs. | |
| 4029 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 4030 | indicate the corresponding GOT entry type is not needed. | |
| 4031 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 4032 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 4033 | just for convenience in distinguishing the two cases. */ | |
| 4034 | #define TLS_GD 1 /* GD reloc. */ | |
| 4035 | #define TLS_LD 2 /* LD reloc. */ | |
| 4036 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 4037 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4038 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4039 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4040 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4041 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4042 | unsigned char tls_mask; |
| 65f38f15 AM |
4043 | }; |
| 4044 | ||
| 4045 | /* ppc64 ELF linker hash table. */ | |
| 4046 | ||
| 4047 | struct ppc_link_hash_table | |
| 4048 | { | |
| 4049 | struct elf_link_hash_table elf; | |
| 4050 | ||
| 721956f4 AM |
4051 | /* The stub hash table. */ |
| 4052 | struct bfd_hash_table stub_hash_table; | |
| 4053 | ||
| 4054 | /* Another hash table for plt_branch stubs. */ | |
| 4055 | struct bfd_hash_table branch_hash_table; | |
| 4056 | ||
| 3b421ab3 AM |
4057 | /* Hash table for function prologue tocsave. */ |
| 4058 | htab_t tocsave_htab; | |
| 4059 | ||
| e7d1c40c AM |
4060 | /* Various options and other info passed from the linker. */ |
| 4061 | struct ppc64_elf_params *params; | |
| 721956f4 | 4062 | |
| 6f20ed8a AM |
4063 | /* The size of sec_info below. */ |
| 4064 | unsigned int sec_info_arr_size; | |
| 4065 | ||
| 4066 | /* Per-section array of extra section info. Done this way rather | |
| 4067 | than as part of ppc64_elf_section_data so we have the info for | |
| 4068 | non-ppc64 sections. */ | |
| 4069 | struct | |
| 4070 | { | |
| 4071 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4072 | bfd_vma toc_off; |
| 6f20ed8a AM |
4073 | |
| 4074 | union | |
| 4075 | { | |
| 4076 | /* The section group that this section belongs to. */ | |
| 4077 | struct map_stub *group; | |
| 4078 | /* A temp section list pointer. */ | |
| 4079 | asection *list; | |
| 4080 | } u; | |
| 4081 | } *sec_info; | |
| 721956f4 | 4082 | |
| a4b6fadd AM |
4083 | /* Linked list of groups. */ |
| 4084 | struct map_stub *group; | |
| 4085 | ||
| ad8e1ba5 AM |
4086 | /* Temp used when calculating TOC pointers. */ |
| 4087 | bfd_vma toc_curr; | |
| bf102f86 AM |
4088 | bfd *toc_bfd; |
| 4089 | asection *toc_first_sec; | |
| ad8e1ba5 | 4090 | |
| b3fac117 AM |
4091 | /* Used when adding symbols. */ |
| 4092 | struct ppc_link_hash_entry *dot_syms; | |
| 4093 | ||
| 33e44f2e | 4094 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4095 | asection *glink; |
| 9e390558 | 4096 | asection *global_entry; |
| 82bd7b59 | 4097 | asection *sfpr; |
| 4ce794b7 AM |
4098 | asection *brlt; |
| 4099 | asection *relbrlt; | |
| 58d180e8 | 4100 | asection *glink_eh_frame; |
| ec338859 | 4101 | |
| 8387904d AM |
4102 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4103 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4104 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4105 | |
| 927be08e AM |
4106 | /* The size of reliplt used by got entry relocs. */ |
| 4107 | bfd_size_type got_reli_size; | |
| 4108 | ||
| 9b5ecbd0 | 4109 | /* Statistics. */ |
| 7341d5e2 | 4110 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4111 | |
| ee75fd95 AM |
4112 | /* Number of stubs against global syms. */ |
| 4113 | unsigned long stub_globals; | |
| 4114 | ||
| ee67d69a AM |
4115 | /* Set if we're linking code with function descriptors. */ |
| 4116 | unsigned int opd_abi:1; | |
| 4117 | ||
| 4c52953f | 4118 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4119 | unsigned int do_multi_toc:1; |
| 4c52953f | 4120 | unsigned int multi_toc_needed:1; |
| 927be08e | 4121 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4122 | unsigned int do_toc_opt:1; |
| 4c52953f | 4123 | |
| 9a23f96e AM |
4124 | /* Set if tls optimization is enabled. */ |
| 4125 | unsigned int do_tls_opt:1; | |
| 4126 | ||
| 5d1634d7 | 4127 | /* Set on error. */ |
| 99877b66 | 4128 | unsigned int stub_error:1; |
| 721956f4 | 4129 | |
| 8c5b4e52 AM |
4130 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4131 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4132 | |
| 82e66161 AM |
4133 | /* Whether there exist local gnu indirect function resolvers, |
| 4134 | referenced by dynamic relocations. */ | |
| 4135 | unsigned int local_ifunc_resolver:1; | |
| 4136 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4137 | ||
| f378ab09 AM |
4138 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4139 | unsigned int has_plt_localentry0:1; | |
| 4140 | ||
| 721956f4 AM |
4141 | /* Incremented every time we size stubs. */ |
| 4142 | unsigned int stub_iteration; | |
| 5d1634d7 | 4143 | |
| 87d72d41 AM |
4144 | /* Small local sym cache. */ |
| 4145 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4146 | }; |
| 4147 | ||
| 4c52953f AM |
4148 | /* Rename some of the generic section flags to better document how they |
| 4149 | are used here. */ | |
| b0dddeec AM |
4150 | |
| 4151 | /* Nonzero if this section has TLS related relocations. */ | |
| 4152 | #define has_tls_reloc sec_flg0 | |
| 4153 | ||
| 4154 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4155 | #define has_tls_get_addr_call sec_flg1 | |
| 4156 | ||
| 4157 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4158 | #define has_toc_reloc sec_flg2 | |
| 4159 | ||
| 4160 | /* Nonzero if this section has a call to another section that uses | |
| 4161 | the toc or got. */ | |
| d77c8a4b | 4162 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4163 | |
| 4164 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4165 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4166 | #define call_check_done sec_flg5 |
| 4c52953f | 4167 | |
| 65f38f15 AM |
4168 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4169 | ||
| 4170 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4171 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4172 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4173 | |
| 721956f4 AM |
4174 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4175 | ((struct ppc_stub_hash_entry *) \ | |
| 4176 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4177 | ||
| 4178 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4179 | ((struct ppc_branch_hash_entry *) \ | |
| 4180 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4181 | ||
| 4182 | /* Create an entry in the stub hash table. */ | |
| 4183 | ||
| 4184 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4185 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4186 | struct bfd_hash_table *table, | |
| 4187 | const char *string) | |
| 721956f4 AM |
4188 | { |
| 4189 | /* Allocate the structure if it has not already been allocated by a | |
| 4190 | subclass. */ | |
| 4191 | if (entry == NULL) | |
| 4192 | { | |
| 4193 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4194 | if (entry == NULL) | |
| 4195 | return entry; | |
| 4196 | } | |
| 4197 | ||
| 4198 | /* Call the allocation method of the superclass. */ | |
| 4199 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4200 | if (entry != NULL) | |
| 4201 | { | |
| 4202 | struct ppc_stub_hash_entry *eh; | |
| 4203 | ||
| 4204 | /* Initialize the local fields. */ | |
| 4205 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4206 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4207 | eh->group = NULL; |
| 721956f4 AM |
4208 | eh->stub_offset = 0; |
| 4209 | eh->target_value = 0; | |
| 4210 | eh->target_section = NULL; | |
| 721956f4 | 4211 | eh->h = NULL; |
| 6911b7dc | 4212 | eh->plt_ent = NULL; |
| 6911b7dc | 4213 | eh->other = 0; |
| 721956f4 AM |
4214 | } |
| 4215 | ||
| 4216 | return entry; | |
| 4217 | } | |
| 4218 | ||
| 4219 | /* Create an entry in the branch hash table. */ | |
| 4220 | ||
| 4221 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4222 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4223 | struct bfd_hash_table *table, | |
| 4224 | const char *string) | |
| 721956f4 AM |
4225 | { |
| 4226 | /* Allocate the structure if it has not already been allocated by a | |
| 4227 | subclass. */ | |
| 4228 | if (entry == NULL) | |
| 4229 | { | |
| 4230 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4231 | if (entry == NULL) | |
| 4232 | return entry; | |
| 4233 | } | |
| 4234 | ||
| 4235 | /* Call the allocation method of the superclass. */ | |
| 4236 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4237 | if (entry != NULL) | |
| 4238 | { | |
| 4239 | struct ppc_branch_hash_entry *eh; | |
| 4240 | ||
| 4241 | /* Initialize the local fields. */ | |
| 4242 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4243 | eh->offset = 0; | |
| 4244 | eh->iter = 0; | |
| 4245 | } | |
| 4246 | ||
| 4247 | return entry; | |
| 4248 | } | |
| 4249 | ||
| 65f38f15 AM |
4250 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4251 | ||
| 4252 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4253 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4254 | struct bfd_hash_table *table, | |
| 4255 | const char *string) | |
| 65f38f15 AM |
4256 | { |
| 4257 | /* Allocate the structure if it has not already been allocated by a | |
| 4258 | subclass. */ | |
| 4259 | if (entry == NULL) | |
| 4260 | { | |
| 4261 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4262 | if (entry == NULL) | |
| 4263 | return entry; | |
| 4264 | } | |
| 4265 | ||
| 4266 | /* Call the allocation method of the superclass. */ | |
| 4267 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4268 | if (entry != NULL) | |
| 4269 | { | |
| 4270 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4271 | ||
| b3fac117 | 4272 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4273 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4274 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4275 | ||
| 4276 | /* When making function calls, old ABI code references function entry | |
| 4277 | points (dot symbols), while new ABI code references the function | |
| 4278 | descriptor symbol. We need to make any combination of reference and | |
| 4279 | definition work together, without breaking archive linking. | |
| 4280 | ||
| 4281 | For a defined function "foo" and an undefined call to "bar": | |
| 4282 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4283 | "bar" too). | |
| 4284 | A new object defines "foo" and references "bar". | |
| 4285 | ||
| 4286 | A new object thus has no problem with its undefined symbols being | |
| 4287 | satisfied by definitions in an old object. On the other hand, the | |
| 4288 | old object won't have ".bar" satisfied by a new object. | |
| 4289 | ||
| 4290 | Keep a list of newly added dot-symbols. */ | |
| 4291 | ||
| 4292 | if (string[0] == '.') | |
| 4293 | { | |
| 4294 | struct ppc_link_hash_table *htab; | |
| 4295 | ||
| 4296 | htab = (struct ppc_link_hash_table *) table; | |
| 4297 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4298 | htab->dot_syms = eh; | |
| 4299 | } | |
| 65f38f15 AM |
4300 | } |
| 4301 | ||
| 4302 | return entry; | |
| 4303 | } | |
| 4304 | ||
| 3b421ab3 AM |
4305 | struct tocsave_entry { |
| 4306 | asection *sec; | |
| 4307 | bfd_vma offset; | |
| 4308 | }; | |
| 4309 | ||
| 4310 | static hashval_t | |
| 4311 | tocsave_htab_hash (const void *p) | |
| 4312 | { | |
| 4313 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4314 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4315 | } |
| 4316 | ||
| 4317 | static int | |
| 4318 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4319 | { | |
| 4320 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4321 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4322 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4323 | } | |
| 4324 | ||
| 68faa637 AM |
4325 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4326 | ||
| 4327 | static void | |
| d495ab0d | 4328 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4329 | { |
| d495ab0d | 4330 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4331 | |
| d495ab0d | 4332 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4333 | if (htab->tocsave_htab) |
| 4334 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4335 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4336 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4337 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4338 | } |
| 4339 | ||
| 65f38f15 AM |
4340 | /* Create a ppc64 ELF linker hash table. */ |
| 4341 | ||
| 4342 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4343 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4344 | { |
| 4345 | struct ppc_link_hash_table *htab; | |
| 4346 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4347 | ||
| 4ce794b7 | 4348 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4349 | if (htab == NULL) |
| 4350 | return NULL; | |
| 4351 | ||
| 66eb6687 | 4352 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4353 | sizeof (struct ppc_link_hash_entry), |
| 4354 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4355 | { |
| e2d34d7d | 4356 | free (htab); |
| 65f38f15 AM |
4357 | return NULL; |
| 4358 | } | |
| 4359 | ||
| 721956f4 | 4360 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4361 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4362 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4363 | { |
| d495ab0d | 4364 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4365 | return NULL; |
| 4366 | } | |
| 721956f4 AM |
4367 | |
| 4368 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4369 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4370 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4371 | { |
| 4372 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4373 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4374 | return NULL; |
| 4375 | } | |
| 721956f4 | 4376 | |
| 3b421ab3 AM |
4377 | htab->tocsave_htab = htab_try_create (1024, |
| 4378 | tocsave_htab_hash, | |
| 4379 | tocsave_htab_eq, | |
| 4380 | NULL); | |
| 4381 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4382 | { |
| d495ab0d | 4383 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4384 | return NULL; |
| 4385 | } | |
| d495ab0d | 4386 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4387 | |
| 3254fd24 AM |
4388 | /* Initializing two fields of the union is just cosmetic. We really |
| 4389 | only care about glist, but when compiled on a 32-bit host the | |
| 4390 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4391 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4392 | htab->elf.init_got_refcount.refcount = 0; |
| 4393 | htab->elf.init_got_refcount.glist = NULL; | |
| 4394 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4395 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4396 | htab->elf.init_got_offset.offset = 0; | |
| 4397 | htab->elf.init_got_offset.glist = NULL; | |
| 4398 | htab->elf.init_plt_offset.offset = 0; | |
| 4399 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4400 | |
| 65f38f15 AM |
4401 | return &htab->elf.root; |
| 4402 | } | |
| 4403 | ||
| bfeb4a28 AM |
4404 | /* Create sections for linker generated code. */ |
| 4405 | ||
| 4406 | static bfd_boolean | |
| 4407 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4408 | { | |
| 4409 | struct ppc_link_hash_table *htab; | |
| 4410 | flagword flags; | |
| 4411 | ||
| 4412 | htab = ppc_hash_table (info); | |
| 4413 | ||
| bfeb4a28 AM |
4414 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4415 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4416 | if (htab->params->save_restore_funcs) |
| 4417 | { | |
| 4418 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4419 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4420 | flags); | |
| 4421 | if (htab->sfpr == NULL | |
| 4422 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4423 | return FALSE; | |
| 4424 | } | |
| 4425 | ||
| 4426 | if (bfd_link_relocatable (info)) | |
| 4427 | return TRUE; | |
| bfeb4a28 AM |
4428 | |
| 4429 | /* Create .glink for lazy dynamic linking support. */ | |
| 4430 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4431 | flags); | |
| 4432 | if (htab->glink == NULL | |
| 4433 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4434 | return FALSE; | |
| 4435 | ||
| 9e390558 AM |
4436 | /* The part of .glink used by global entry stubs, separate so that |
| 4437 | it can be aligned appropriately without affecting htab->glink. */ | |
| 4438 | htab->global_entry = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4439 | flags); | |
| 4440 | if (htab->global_entry == NULL | |
| 4441 | || ! bfd_set_section_alignment (dynobj, htab->global_entry, 2)) | |
| 4442 | return FALSE; | |
| 4443 | ||
| bfeb4a28 AM |
4444 | if (!info->no_ld_generated_unwind_info) |
| 4445 | { | |
| 4446 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4447 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4448 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4449 | ".eh_frame", | |
| 4450 | flags); | |
| 4451 | if (htab->glink_eh_frame == NULL | |
| 4452 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4453 | return FALSE; | |
| 4454 | } | |
| 4455 | ||
| 4456 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4457 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4458 | if (htab->elf.iplt == NULL | |
| 4459 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4460 | return FALSE; |
| 4461 | ||
| 4462 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4463 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4464 | htab->elf.irelplt |
| 4465 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4466 | if (htab->elf.irelplt == NULL | |
| 4467 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4468 | return FALSE; |
| 4469 | ||
| 4470 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4471 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4472 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4473 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4474 | flags); | |
| 4475 | if (htab->brlt == NULL | |
| 4476 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4477 | return FALSE; | |
| 4478 | ||
| 0e1862bb | 4479 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4480 | return TRUE; |
| 4481 | ||
| 4482 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4483 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4484 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4485 | ".rela.branch_lt", | |
| 4486 | flags); | |
| 4487 | if (htab->relbrlt == NULL | |
| 4488 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4489 | return FALSE; | |
| 4490 | ||
| 4491 | return TRUE; | |
| 4492 | } | |
| 4493 | ||
| e717da7e AM |
4494 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4495 | ||
| bfeb4a28 | 4496 | bfd_boolean |
| e7d1c40c AM |
4497 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4498 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4499 | { |
| 4500 | struct ppc_link_hash_table *htab; | |
| 4501 | ||
| e7d1c40c | 4502 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4503 | |
| 4504 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4505 | linker created stub bfd. This ensures that the GOT header is at | |
| 4506 | the start of the output TOC section. */ | |
| 4507 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4508 | htab->elf.dynobj = params->stub_bfd; |
| 4509 | htab->params = params; | |
| bfeb4a28 | 4510 | |
| bfeb4a28 | 4511 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4512 | } |
| 4513 | ||
| 721956f4 AM |
4514 | /* Build a name for an entry in the stub hash table. */ |
| 4515 | ||
| 4516 | static char * | |
| 4ce794b7 AM |
4517 | ppc_stub_name (const asection *input_section, |
| 4518 | const asection *sym_sec, | |
| 4519 | const struct ppc_link_hash_entry *h, | |
| 4520 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4521 | { |
| 4522 | char *stub_name; | |
| bcaa2f82 | 4523 | ssize_t len; |
| 721956f4 AM |
4524 | |
| 4525 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4526 | offsets from a sym as a branch target? In fact, we could | |
| 4527 | probably assume the addend is always zero. */ | |
| 4528 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4529 | ||
| 4530 | if (h) | |
| 4531 | { | |
| 4532 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4533 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4534 | if (stub_name == NULL) |
| 4535 | return stub_name; | |
| 4536 | ||
| bcaa2f82 AM |
4537 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4538 | input_section->id & 0xffffffff, | |
| 4539 | h->elf.root.root.string, | |
| 4540 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4541 | } |
| 4542 | else | |
| 4543 | { | |
| ad8e1ba5 | 4544 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4545 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4546 | if (stub_name == NULL) |
| 4547 | return stub_name; | |
| 4548 | ||
| bcaa2f82 AM |
4549 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4550 | input_section->id & 0xffffffff, | |
| 4551 | sym_sec->id & 0xffffffff, | |
| 4552 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4553 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4554 | } |
| bcaa2f82 | 4555 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4556 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4557 | return stub_name; |
| 4558 | } | |
| 4559 | ||
| 4560 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4561 | creating the stub name takes a bit of time. */ | |
| 4562 | ||
| 4563 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4564 | ppc_get_stub_entry (const asection *input_section, |
| 4565 | const asection *sym_sec, | |
| 039b3fef | 4566 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4567 | const Elf_Internal_Rela *rel, |
| 4568 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4569 | { |
| 4570 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4571 | struct map_stub *group; |
| 721956f4 AM |
4572 | |
| 4573 | /* If this input section is part of a group of sections sharing one | |
| 4574 | stub section, then use the id of the first section in the group. | |
| 4575 | Stub names need to include a section id, as there may well be | |
| 4576 | more than one stub used to reach say, printf, and we need to | |
| 4577 | distinguish between them. */ | |
| 6f20ed8a | 4578 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4579 | if (group == NULL) |
| 4580 | return NULL; | |
| 721956f4 | 4581 | |
| b3fac117 AM |
4582 | if (h != NULL && h->u.stub_cache != NULL |
| 4583 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4584 | && h->u.stub_cache->group == group) |
| 721956f4 | 4585 | { |
| b3fac117 | 4586 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4587 | } |
| 4588 | else | |
| 4589 | { | |
| 4590 | char *stub_name; | |
| 4591 | ||
| 6f20ed8a | 4592 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4593 | if (stub_name == NULL) |
| 4594 | return NULL; | |
| 4595 | ||
| 4596 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4597 | stub_name, FALSE, FALSE); |
| 721956f4 | 4598 | if (h != NULL) |
| b3fac117 | 4599 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4600 | |
| 4601 | free (stub_name); | |
| 4602 | } | |
| 4603 | ||
| 4604 | return stub_entry; | |
| 4605 | } | |
| 4606 | ||
| 4607 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4608 | stub entry are initialised. */ | |
| 4609 | ||
| 4610 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4611 | ppc_add_stub (const char *stub_name, |
| 4612 | asection *section, | |
| 25f53a85 | 4613 | struct bfd_link_info *info) |
| 721956f4 | 4614 | { |
| 25f53a85 | 4615 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4616 | struct map_stub *group; |
| 721956f4 AM |
4617 | asection *link_sec; |
| 4618 | asection *stub_sec; | |
| 4619 | struct ppc_stub_hash_entry *stub_entry; | |
| 4620 | ||
| 6f20ed8a AM |
4621 | group = htab->sec_info[section->id].u.group; |
| 4622 | link_sec = group->link_sec; | |
| 4623 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4624 | if (stub_sec == NULL) |
| 4625 | { | |
| 6f20ed8a AM |
4626 | size_t namelen; |
| 4627 | bfd_size_type len; | |
| 4628 | char *s_name; | |
| 721956f4 | 4629 | |
| 6f20ed8a AM |
4630 | namelen = strlen (link_sec->name); |
| 4631 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4632 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4633 | if (s_name == NULL) | |
| 4634 | return NULL; | |
| 721956f4 | 4635 | |
| 6f20ed8a AM |
4636 | memcpy (s_name, link_sec->name, namelen); |
| 4637 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4638 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4639 | if (stub_sec == NULL) | |
| 4640 | return NULL; | |
| 4641 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4642 | } |
| 4643 | ||
| 4644 | /* Enter this entry into the linker stub hash table. */ | |
| 4645 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4646 | TRUE, FALSE); |
| 721956f4 AM |
4647 | if (stub_entry == NULL) |
| 4648 | { | |
| 695344c0 | 4649 | /* xgettext:c-format */ |
| 871b3ab2 | 4650 | info->callbacks->einfo (_("%P: %pB: cannot create stub entry %s\n"), |
| 25f53a85 | 4651 | section->owner, stub_name); |
| 721956f4 AM |
4652 | return NULL; |
| 4653 | } | |
| 4654 | ||
| 6f20ed8a | 4655 | stub_entry->group = group; |
| 721956f4 | 4656 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4657 | return stub_entry; |
| 4658 | } | |
| 4659 | ||
| e717da7e AM |
4660 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4661 | not already done. */ | |
| 65f38f15 | 4662 | |
| b34976b6 | 4663 | static bfd_boolean |
| e717da7e | 4664 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4665 | { |
| e717da7e AM |
4666 | asection *got, *relgot; |
| 4667 | flagword flags; | |
| 4668 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4669 | |
| 0c8d6e5c | 4670 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4671 | return FALSE; |
| 4dfe6ac6 NC |
4672 | if (htab == NULL) |
| 4673 | return FALSE; | |
| 0ffa91dd | 4674 | |
| 33e44f2e AM |
4675 | if (!htab->elf.sgot |
| 4676 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4677 | return FALSE; | |
| e717da7e AM |
4678 | |
| 4679 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4680 | | SEC_LINKER_CREATED); | |
| 4681 | ||
| c456f082 | 4682 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4683 | if (!got |
| e717da7e AM |
4684 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4685 | return FALSE; | |
| 65f38f15 | 4686 | |
| c456f082 AM |
4687 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4688 | flags | SEC_READONLY); | |
| e717da7e | 4689 | if (!relgot |
| e717da7e | 4690 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4691 | return FALSE; |
| e717da7e AM |
4692 | |
| 4693 | ppc64_elf_tdata (abfd)->got = got; | |
| 4694 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4695 | return TRUE; |
| 65f38f15 | 4696 | } |
| 5bd4f169 | 4697 | |
| b31867b6 AM |
4698 | /* Follow indirect and warning symbol links. */ |
| 4699 | ||
| 4700 | static inline struct bfd_link_hash_entry * | |
| 4701 | follow_link (struct bfd_link_hash_entry *h) | |
| 4702 | { | |
| 4703 | while (h->type == bfd_link_hash_indirect | |
| 4704 | || h->type == bfd_link_hash_warning) | |
| 4705 | h = h->u.i.link; | |
| 4706 | return h; | |
| 4707 | } | |
| 4708 | ||
| 4709 | static inline struct elf_link_hash_entry * | |
| 4710 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4711 | { | |
| 4712 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4713 | } | |
| 4714 | ||
| 4715 | static inline struct ppc_link_hash_entry * | |
| 4716 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4717 | { | |
| 4718 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4719 | } | |
| 4720 | ||
| 40d16e0b AM |
4721 | /* Merge PLT info on FROM with that on TO. */ |
| 4722 | ||
| 4723 | static void | |
| 4724 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4725 | struct ppc_link_hash_entry *to) | |
| 4726 | { | |
| 4727 | if (from->elf.plt.plist != NULL) | |
| 4728 | { | |
| 4729 | if (to->elf.plt.plist != NULL) | |
| 4730 | { | |
| 4731 | struct plt_entry **entp; | |
| 4732 | struct plt_entry *ent; | |
| 4733 | ||
| 4734 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4735 | { | |
| 4736 | struct plt_entry *dent; | |
| 4737 | ||
| 4738 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4739 | if (dent->addend == ent->addend) | |
| 4740 | { | |
| 4741 | dent->plt.refcount += ent->plt.refcount; | |
| 4742 | *entp = ent->next; | |
| 4743 | break; | |
| 4744 | } | |
| 4745 | if (dent == NULL) | |
| 4746 | entp = &ent->next; | |
| 4747 | } | |
| 4748 | *entp = to->elf.plt.plist; | |
| 4749 | } | |
| 4750 | ||
| 4751 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4752 | from->elf.plt.plist = NULL; | |
| 4753 | } | |
| 4754 | } | |
| 4755 | ||
| 65f38f15 AM |
4756 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4757 | ||
| 4758 | static void | |
| fcfa13d2 AM |
4759 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4760 | struct elf_link_hash_entry *dir, | |
| 4761 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4762 | { |
| 4763 | struct ppc_link_hash_entry *edir, *eind; | |
| 4764 | ||
| 4765 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4766 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4767 | ||
| c79d6685 AM |
4768 | edir->is_func |= eind->is_func; |
| 4769 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4770 | edir->tls_mask |= eind->tls_mask; | |
| 4771 | if (eind->oh != NULL) | |
| 4772 | edir->oh = ppc_follow_link (eind->oh); | |
| 4773 | ||
| 474436e6 | 4774 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4775 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4776 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4777 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4a7e5234 | 4778 | edir->elf.non_got_ref |= eind->elf.non_got_ref; |
| e81830c5 AM |
4779 | edir->elf.needs_plt |= eind->elf.needs_plt; |
| 4780 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4781 | |
| d311bc8b AM |
4782 | /* If we were called to copy over info for a weak sym, don't copy |
| 4783 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4784 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4785 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4786 | tests about a specific symbol, or affect other symbol flags which | |
| ab2477e1 | 4787 | are then tested. */ |
| d311bc8b | 4788 | if (eind->elf.root.type != bfd_link_hash_indirect) |
| ab2477e1 | 4789 | return; |
| d311bc8b | 4790 | |
| 411e1bfb | 4791 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4792 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4793 | { |
| bbd7ec4a AM |
4794 | if (edir->dyn_relocs != NULL) |
| 4795 | { | |
| 6061a67d AM |
4796 | struct elf_dyn_relocs **pp; |
| 4797 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4798 | |
| fcfa13d2 | 4799 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4800 | list. Merge any entries against the same section. */ |
| 4801 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4802 | { | |
| 6061a67d | 4803 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4804 | |
| 4805 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4806 | if (q->sec == p->sec) | |
| 4807 | { | |
| 4808 | q->pc_count += p->pc_count; | |
| 4809 | q->count += p->count; | |
| 4810 | *pp = p->next; | |
| 4811 | break; | |
| 4812 | } | |
| 4813 | if (q == NULL) | |
| 4814 | pp = &p->next; | |
| 4815 | } | |
| 4816 | *pp = edir->dyn_relocs; | |
| 4817 | } | |
| 4818 | ||
| 65f38f15 AM |
4819 | edir->dyn_relocs = eind->dyn_relocs; |
| 4820 | eind->dyn_relocs = NULL; | |
| 4821 | } | |
| 65f38f15 | 4822 | |
| 81848ca0 AM |
4823 | /* Copy over got entries that we may have already seen to the |
| 4824 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4825 | if (eind->elf.got.glist != NULL) |
| 4826 | { | |
| 4827 | if (edir->elf.got.glist != NULL) | |
| 4828 | { | |
| 4829 | struct got_entry **entp; | |
| 4830 | struct got_entry *ent; | |
| 4831 | ||
| 4832 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4833 | { | |
| 4834 | struct got_entry *dent; | |
| 4835 | ||
| 4836 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4837 | if (dent->addend == ent->addend | |
| e717da7e | 4838 | && dent->owner == ent->owner |
| 411e1bfb AM |
4839 | && dent->tls_type == ent->tls_type) |
| 4840 | { | |
| 4841 | dent->got.refcount += ent->got.refcount; | |
| 4842 | *entp = ent->next; | |
| 4843 | break; | |
| 4844 | } | |
| 4845 | if (dent == NULL) | |
| 4846 | entp = &ent->next; | |
| 4847 | } | |
| 4848 | *entp = edir->elf.got.glist; | |
| 4849 | } | |
| 4850 | ||
| 4851 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4852 | eind->elf.got.glist = NULL; | |
| 4853 | } | |
| 4854 | ||
| 4855 | /* And plt entries. */ | |
| 40d16e0b | 4856 | move_plt_plist (eind, edir); |
| 411e1bfb | 4857 | |
| fcfa13d2 | 4858 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4859 | { |
| fcfa13d2 AM |
4860 | if (edir->elf.dynindx != -1) |
| 4861 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4862 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4863 | edir->elf.dynindx = eind->elf.dynindx; |
| 4864 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4865 | eind->elf.dynindx = -1; | |
| 4866 | eind->elf.dynstr_index = 0; | |
| 4867 | } | |
| 411e1bfb AM |
4868 | } |
| 4869 | ||
| 8387904d AM |
4870 | /* Find the function descriptor hash entry from the given function code |
| 4871 | hash entry FH. Link the entries via their OH fields. */ | |
| 4872 | ||
| 4873 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4874 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4875 | { |
| 4876 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4877 | ||
| 4878 | if (fdh == NULL) | |
| 4879 | { | |
| 4880 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4881 | ||
| 4882 | fdh = (struct ppc_link_hash_entry *) | |
| 4883 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4884 | if (fdh == NULL) |
| 4885 | return fdh; | |
| 4886 | ||
| 4887 | fdh->is_func_descriptor = 1; | |
| 4888 | fdh->oh = fh; | |
| 4889 | fh->is_func = 1; | |
| 4890 | fh->oh = fdh; | |
| 8387904d AM |
4891 | } |
| 4892 | ||
| 8c5b4e52 AM |
4893 | fdh = ppc_follow_link (fdh); |
| 4894 | fdh->is_func_descriptor = 1; | |
| 4895 | fdh->oh = fh; | |
| 4896 | return fdh; | |
| 8387904d AM |
4897 | } |
| 4898 | ||
| 8c5b4e52 | 4899 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4900 | |
| 4901 | static struct ppc_link_hash_entry * | |
| 4902 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4903 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4904 | { |
| 8c5b4e52 AM |
4905 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4906 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4907 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4908 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4909 | ? BSF_WEAK | |
| 4910 | : BSF_GLOBAL); | |
| 4911 | ||
| 4912 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4913 | fh->elf.root.root.string + 1, | |
| 4914 | flags, bfd_und_section_ptr, 0, | |
| 4915 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4916 | return NULL; |
| 4917 | ||
| 4918 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4919 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4920 | fdh->fake = 1; |
| 4921 | fdh->is_func_descriptor = 1; | |
| 4922 | fdh->oh = fh; | |
| 4923 | fh->is_func = 1; | |
| 4924 | fh->oh = fdh; | |
| bb700d78 AM |
4925 | return fdh; |
| 4926 | } | |
| 4927 | ||
| 8387904d AM |
4928 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4929 | function type. */ | |
| 555cd476 AM |
4930 | |
| 4931 | static bfd_boolean | |
| c16153ae | 4932 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4933 | struct bfd_link_info *info, |
| 555cd476 | 4934 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4935 | const char **name, |
| 555cd476 AM |
4936 | flagword *flags ATTRIBUTE_UNUSED, |
| 4937 | asection **sec, | |
| b53dfeb2 | 4938 | bfd_vma *value) |
| 555cd476 | 4939 | { |
| a43942db | 4940 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4941 | && (ibfd->flags & DYNAMIC) == 0 |
| 4942 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4943 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4944 | |
| b53dfeb2 | 4945 | if (*sec != NULL |
| f1885d1e | 4946 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4947 | { |
| 4948 | asection *code_sec; | |
| 4949 | ||
| 4950 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4951 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4952 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4953 | ||
| 4954 | /* If the symbol is a function defined in .opd, and the function | |
| 4955 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4956 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4957 | && (*sec)->reloc_count != 0 |
| 4958 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4959 | FALSE) != (bfd_vma) -1 | |
| 4960 | && discarded_section (code_sec)) | |
| 4961 | { | |
| 4962 | *sec = bfd_und_section_ptr; | |
| 4963 | isym->st_shndx = SHN_UNDEF; | |
| 4964 | } | |
| 4965 | } | |
| dbd1e97e AM |
4966 | else if (*sec != NULL |
| 4967 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4968 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4969 | { | |
| 4970 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4971 | if (htab != NULL) | |
| 4972 | htab->params->object_in_toc = 1; | |
| 4973 | } | |
| 433817dd | 4974 | |
| 6911b7dc AM |
4975 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4976 | { | |
| 4977 | if (abiversion (ibfd) == 0) | |
| 4978 | set_abiversion (ibfd, 2); | |
| 4979 | else if (abiversion (ibfd) == 1) | |
| 4980 | { | |
| 4981 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4982 | " for ABI version 1\n"), name); | |
| 4983 | bfd_set_error (bfd_error_bad_value); | |
| 4984 | return FALSE; | |
| 4985 | } | |
| 4986 | } | |
| 4987 | ||
| 555cd476 AM |
4988 | return TRUE; |
| 4989 | } | |
| 4990 | ||
| 6911b7dc AM |
4991 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4992 | ||
| 4993 | static void | |
| 4994 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4995 | const Elf_Internal_Sym *isym, | |
| 4996 | bfd_boolean definition, | |
| 4997 | bfd_boolean dynamic) | |
| 4998 | { | |
| f378ab09 | 4999 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5000 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5001 | | ELF_ST_VISIBILITY (h->other)); | |
| 5002 | } | |
| 5003 | ||
| 8c5b4e52 AM |
5004 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5005 | we now have a real symbol. */ | |
| 5006 | ||
| 5007 | static bfd_boolean | |
| 5008 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5009 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5010 | asection **psec ATTRIBUTE_UNUSED, |
| 5011 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5012 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5013 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5014 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5015 | { | |
| 5016 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5017 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5018 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5019 | return TRUE; |
| 5020 | } | |
| 5021 | ||
| 8387904d | 5022 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5023 | inclusion of a new ABI object archive that defines "bar". |
| 5024 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5025 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5026 | |
| 5027 | static struct elf_link_hash_entry * | |
| 5028 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5029 | struct bfd_link_info *info, | |
| 5030 | const char *name) | |
| 5031 | { | |
| 5032 | struct elf_link_hash_entry *h; | |
| 5033 | char *dot_name; | |
| 5034 | size_t len; | |
| 5035 | ||
| 5036 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5037 | if (h != NULL |
| 5038 | /* Don't return this sym if it is a fake function descriptor | |
| 5039 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5040 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5041 | return h; |
| 5042 | ||
| 5043 | if (name[0] == '.') | |
| 5044 | return h; | |
| 5045 | ||
| 5046 | len = strlen (name); | |
| 5047 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5048 | if (dot_name == NULL) | |
| e99955cd | 5049 | return (struct elf_link_hash_entry *) -1; |
| 8387904d AM |
5050 | dot_name[0] = '.'; |
| 5051 | memcpy (dot_name + 1, name, len + 1); | |
| 5052 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5053 | bfd_release (abfd, dot_name); | |
| 5054 | return h; | |
| 5055 | } | |
| 5056 | ||
| 5057 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5058 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5059 | are made weak. This stops later archive searches from including an | |
| 5060 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5061 | prevents the linker complaining about undefined symbols. |
| 5062 | We also check and correct mismatched symbol visibility here. The | |
| 5063 | most restrictive visibility of the function descriptor and the | |
| 5064 | function entry symbol is used. */ | |
| 8387904d AM |
5065 | |
| 5066 | static bfd_boolean | |
| b3fac117 | 5067 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5068 | { |
| 8387904d AM |
5069 | struct ppc_link_hash_table *htab; |
| 5070 | struct ppc_link_hash_entry *fdh; | |
| 5071 | ||
| b3fac117 AM |
5072 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5073 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5074 | |
| 8400d40d AM |
5075 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5076 | return TRUE; | |
| 5077 | ||
| b3fac117 AM |
5078 | if (eh->elf.root.root.string[0] != '.') |
| 5079 | abort (); | |
| 8387904d | 5080 | |
| b3fac117 | 5081 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5082 | if (htab == NULL) |
| 5083 | return FALSE; | |
| 5084 | ||
| b31867b6 | 5085 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5086 | if (fdh == NULL |
| 5087 | && !bfd_link_relocatable (info) | |
| 5088 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5089 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5090 | && eh->elf.ref_regular) | |
| 5091 | { | |
| 5092 | /* Make an undefined function descriptor sym, in order to | |
| 5093 | pull in an --as-needed shared lib. Archives are handled | |
| 5094 | elsewhere. */ | |
| 5095 | fdh = make_fdh (info, eh); | |
| 5096 | if (fdh == NULL) | |
| 5097 | return FALSE; | |
| bb700d78 | 5098 | } |
| 8c5b4e52 AM |
5099 | |
| 5100 | if (fdh != NULL) | |
| 8387904d | 5101 | { |
| 35b0ce59 AM |
5102 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5103 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5104 | |
| 5105 | /* Make both descriptor and entry symbol have the most | |
| 5106 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5107 | if (entry_vis < descr_vis) |
| 5108 | fdh->elf.other += entry_vis - descr_vis; | |
| 5109 | else if (entry_vis > descr_vis) | |
| 5110 | eh->elf.other += descr_vis - entry_vis; | |
| 5111 | ||
| 8c5b4e52 AM |
5112 | /* Propagate reference flags from entry symbol to function |
| 5113 | descriptor symbol. */ | |
| bc4e12de | 5114 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5115 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5116 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5117 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5118 | ||
| 5119 | if (!fdh->elf.forced_local | |
| 5120 | && fdh->elf.dynindx == -1 | |
| 5121 | && fdh->elf.versioned != versioned_hidden | |
| 5122 | && (bfd_link_dll (info) | |
| 5123 | || fdh->elf.def_dynamic | |
| 5124 | || fdh->elf.ref_dynamic) | |
| 5125 | && (eh->elf.ref_regular | |
| 5126 | || eh->elf.def_regular)) | |
| 5127 | { | |
| 5128 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5129 | return FALSE; | |
| 35b0ce59 | 5130 | } |
| 8387904d | 5131 | } |
| 99877b66 | 5132 | |
| 8387904d AM |
5133 | return TRUE; |
| 5134 | } | |
| 5135 | ||
| f6c7c3e8 AM |
5136 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5137 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5138 | |
| 8387904d | 5139 | static bfd_boolean |
| f6c7c3e8 | 5140 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5141 | { |
| 99877b66 | 5142 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5143 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5144 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5145 | |
| 459609d6 | 5146 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5147 | { |
| b9399fcf AM |
5148 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); |
| 5149 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| 5150 | ||
| 459609d6 AM |
5151 | if (abiversion (ibfd) == 0) |
| 5152 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5153 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5154 | { |
| 695344c0 | 5155 | /* xgettext:c-format */ |
| 871b3ab2 | 5156 | info->callbacks->einfo (_("%P: %pB .opd not allowed in ABI" |
| 459609d6 AM |
5157 | " version %d\n"), |
| 5158 | ibfd, abiversion (ibfd)); | |
| 5159 | bfd_set_error (bfd_error_bad_value); | |
| 5160 | return FALSE; | |
| f6c7c3e8 | 5161 | } |
| b9399fcf | 5162 | } |
| f6c7c3e8 | 5163 | |
| b9399fcf AM |
5164 | if (is_ppc64_elf (info->output_bfd)) |
| 5165 | { | |
| 5166 | /* For input files without an explicit abiversion in e_flags | |
| 5167 | we should have flagged any with symbol st_other bits set | |
| 5168 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5169 | Set the output abiversion if not yet set, and for any input | |
| 5170 | still ambiguous, take its abiversion from the output. | |
| 5171 | Differences in ABI are reported later. */ | |
| 5172 | if (abiversion (info->output_bfd) == 0) | |
| 5173 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5174 | else if (abiversion (ibfd) == 0) | |
| 5175 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| b3fac117 AM |
5176 | } |
| 5177 | ||
| 459609d6 AM |
5178 | htab = ppc_hash_table (info); |
| 5179 | if (htab == NULL) | |
| b9399fcf | 5180 | return TRUE; |
| 459609d6 | 5181 | |
| b9399fcf AM |
5182 | if (opd != NULL && opd->size != 0 |
| 5183 | && (ibfd->flags & DYNAMIC) == 0 | |
| 5184 | && (opd->flags & SEC_RELOC) != 0 | |
| 5185 | && opd->reloc_count != 0 | |
| 5186 | && !bfd_is_abs_section (opd->output_section) | |
| 5187 | && info->gc_sections) | |
| 5188 | { | |
| 5189 | /* Garbage collection needs some extra help with .opd sections. | |
| 5190 | We don't want to necessarily keep everything referenced by | |
| 5191 | relocs in .opd, as that would keep all functions. Instead, | |
| 5192 | if we reference an .opd symbol (a function descriptor), we | |
| 5193 | want to keep the function code symbol's section. This is | |
| 5194 | easy for global symbols, but for local syms we need to keep | |
| 5195 | information about the associated function section. */ | |
| 5196 | bfd_size_type amt; | |
| 5197 | asection **opd_sym_map; | |
| 5198 | Elf_Internal_Shdr *symtab_hdr; | |
| 5199 | Elf_Internal_Rela *relocs, *rel_end, *rel; | |
| 5200 | ||
| 5201 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); | |
| 5202 | opd_sym_map = bfd_zalloc (ibfd, amt); | |
| 5203 | if (opd_sym_map == NULL) | |
| 5204 | return FALSE; | |
| 5205 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; | |
| 5206 | relocs = _bfd_elf_link_read_relocs (ibfd, opd, NULL, NULL, | |
| 5207 | info->keep_memory); | |
| 5208 | if (relocs == NULL) | |
| 5209 | return FALSE; | |
| 5210 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 5211 | rel_end = relocs + opd->reloc_count - 1; | |
| 5212 | for (rel = relocs; rel < rel_end; rel++) | |
| 5213 | { | |
| 5214 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 5215 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5216 | ||
| 5217 | if (r_type == R_PPC64_ADDR64 | |
| 5218 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC | |
| 5219 | && r_symndx < symtab_hdr->sh_info) | |
| 5220 | { | |
| 5221 | Elf_Internal_Sym *isym; | |
| 5222 | asection *s; | |
| 5223 | ||
| 5224 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, r_symndx); | |
| 5225 | if (isym == NULL) | |
| 5226 | { | |
| 5227 | if (elf_section_data (opd)->relocs != relocs) | |
| 5228 | free (relocs); | |
| 5229 | return FALSE; | |
| 5230 | } | |
| 5231 | ||
| 5232 | s = bfd_section_from_elf_index (ibfd, isym->st_shndx); | |
| 5233 | if (s != NULL && s != opd) | |
| 5234 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; | |
| 5235 | } | |
| 5236 | } | |
| 5237 | if (elf_section_data (opd)->relocs != relocs) | |
| 5238 | free (relocs); | |
| 5239 | } | |
| 459609d6 AM |
5240 | |
| 5241 | p = &htab->dot_syms; | |
| 5242 | while ((eh = *p) != NULL) | |
| 5243 | { | |
| 5244 | *p = NULL; | |
| 5245 | if (&eh->elf == htab->elf.hgot) | |
| 5246 | ; | |
| 5247 | else if (htab->elf.hgot == NULL | |
| 5248 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5249 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5250 | else if (abiversion (ibfd) <= 1) |
| 5251 | { | |
| 5252 | htab->need_func_desc_adj = 1; | |
| 5253 | if (!add_symbol_adjust (eh, info)) | |
| 5254 | return FALSE; | |
| 5255 | } | |
| 459609d6 AM |
5256 | p = &eh->u.next_dot_sym; |
| 5257 | } | |
| b3fac117 | 5258 | return TRUE; |
| 8387904d AM |
5259 | } |
| 5260 | ||
| 97fed1c9 JJ |
5261 | /* Undo hash table changes when an --as-needed input file is determined |
| 5262 | not to be needed. */ | |
| 5263 | ||
| 5264 | static bfd_boolean | |
| e5034e59 AM |
5265 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5266 | struct bfd_link_info *info, | |
| 5267 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5268 | { |
| e5034e59 AM |
5269 | if (act == notice_not_needed) |
| 5270 | { | |
| 5271 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5272 | |
| e5034e59 AM |
5273 | if (htab == NULL) |
| 5274 | return FALSE; | |
| 4dfe6ac6 | 5275 | |
| e5034e59 AM |
5276 | htab->dot_syms = NULL; |
| 5277 | } | |
| 5278 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5279 | } |
| 5280 | ||
| aa374f67 AM |
5281 | /* If --just-symbols against a final linked binary, then assume we need |
| 5282 | toc adjusting stubs when calling functions defined there. */ | |
| 5283 | ||
| 5284 | static void | |
| 5285 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5286 | { | |
| 5287 | if ((sec->flags & SEC_CODE) != 0 | |
| 5288 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5289 | && is_ppc64_elf (sec->owner)) | |
| 5290 | { | |
| 2c3f079f AM |
5291 | if (abiversion (sec->owner) >= 2 |
| 5292 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5293 | sec->has_toc_reloc = 1; |
| 5294 | } | |
| 5295 | _bfd_elf_link_just_syms (sec, info); | |
| 5296 | } | |
| 5297 | ||
| e054468f | 5298 | static struct plt_entry ** |
| 4ce794b7 AM |
5299 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5300 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5301 | { |
| 5302 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5303 | struct plt_entry **local_plt; |
| f961d9dd | 5304 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5305 | |
| 5306 | if (local_got_ents == NULL) | |
| 5307 | { | |
| 5308 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5309 | ||
| e054468f AM |
5310 | size *= (sizeof (*local_got_ents) |
| 5311 | + sizeof (*local_plt) | |
| 5312 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5313 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5314 | if (local_got_ents == NULL) |
| e054468f | 5315 | return NULL; |
| 411e1bfb AM |
5316 | elf_local_got_ents (abfd) = local_got_ents; |
| 5317 | } | |
| 5318 | ||
| e054468f | 5319 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5320 | { |
| 5321 | struct got_entry *ent; | |
| 5322 | ||
| 5323 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5324 | if (ent->addend == r_addend |
| 5325 | && ent->owner == abfd | |
| 5326 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5327 | break; |
| 5328 | if (ent == NULL) | |
| 5329 | { | |
| 5330 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5331 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5332 | if (ent == NULL) |
| 5333 | return FALSE; | |
| 5334 | ent->next = local_got_ents[r_symndx]; | |
| 5335 | ent->addend = r_addend; | |
| e717da7e | 5336 | ent->owner = abfd; |
| 411e1bfb | 5337 | ent->tls_type = tls_type; |
| 927be08e | 5338 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5339 | ent->got.refcount = 0; |
| 5340 | local_got_ents[r_symndx] = ent; | |
| 5341 | } | |
| 5342 | ent->got.refcount += 1; | |
| 5343 | } | |
| 5344 | ||
| e054468f | 5345 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5346 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5347 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5348 | |
| 5349 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5350 | } |
| 5351 | ||
| 411e1bfb | 5352 | static bfd_boolean |
| e054468f | 5353 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5354 | { |
| 411e1bfb | 5355 | struct plt_entry *ent; |
| 1e2f5b6e | 5356 | |
| e054468f | 5357 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5358 | if (ent->addend == addend) |
| 5359 | break; | |
| 5360 | if (ent == NULL) | |
| 1e2f5b6e | 5361 | { |
| 411e1bfb | 5362 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5363 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5364 | if (ent == NULL) |
| 5365 | return FALSE; | |
| e054468f | 5366 | ent->next = *plist; |
| 411e1bfb AM |
5367 | ent->addend = addend; |
| 5368 | ent->plt.refcount = 0; | |
| e054468f | 5369 | *plist = ent; |
| 1e2f5b6e | 5370 | } |
| 411e1bfb | 5371 | ent->plt.refcount += 1; |
| b34976b6 | 5372 | return TRUE; |
| 1e2f5b6e AM |
5373 | } |
| 5374 | ||
| e054468f AM |
5375 | static bfd_boolean |
| 5376 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5377 | { | |
| 5378 | return (r_type == R_PPC64_REL24 | |
| 5379 | || r_type == R_PPC64_REL14 | |
| 5380 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5381 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5382 | || r_type == R_PPC64_ADDR24 | |
| 5383 | || r_type == R_PPC64_ADDR14 | |
| 5384 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5385 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5386 | } | |
| 5387 | ||
| 5bd4f169 | 5388 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5389 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5390 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5391 | |
| b34976b6 | 5392 | static bfd_boolean |
| 4ce794b7 AM |
5393 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5394 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5395 | { |
| 65f38f15 | 5396 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5397 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5398 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5399 | const Elf_Internal_Rela *rel; |
| 5400 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5401 | asection *sreloc; |
| 3a71aa26 | 5402 | struct elf_link_hash_entry *tga, *dottga; |
| b9399fcf | 5403 | bfd_boolean is_opd; |
| 5bd4f169 | 5404 | |
| 0e1862bb | 5405 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5406 | return TRUE; |
| 5bd4f169 | 5407 | |
| 680a3378 AM |
5408 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5409 | In particular, any relocs in such sections should not affect GOT | |
| 5410 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5411 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5412 | relocs, and there's not much point in propagating relocs to shared | |
| 5413 | libs that the dynamic linker won't relocate. */ | |
| 5414 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5415 | return TRUE; | |
| 5416 | ||
| 0c8d6e5c | 5417 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5418 | |
| 65f38f15 | 5419 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5420 | if (htab == NULL) |
| 5421 | return FALSE; | |
| 5422 | ||
| 3a71aa26 AM |
5423 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5424 | FALSE, FALSE, TRUE); | |
| 5425 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5426 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5427 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5428 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5429 | sreloc = NULL; |
| b9399fcf | 5430 | is_opd = ppc64_elf_section_data (sec)->sec_type == sec_opd; |
| 5bd4f169 AM |
5431 | rel_end = relocs + sec->reloc_count; |
| 5432 | for (rel = relocs; rel < rel_end; rel++) | |
| 5433 | { | |
| 5434 | unsigned long r_symndx; | |
| 5435 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5436 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5437 | int tls_type; |
| 7c8fe5c4 | 5438 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5439 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5440 | |
| 5441 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5442 | if (r_symndx < symtab_hdr->sh_info) | |
| 5443 | h = NULL; | |
| 5444 | else | |
| 973a3492 L |
5445 | { |
| 5446 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5447 | h = elf_follow_link (h); |
| 1c865ab2 AM |
5448 | |
| 5449 | if (h == htab->elf.hgot) | |
| 5450 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5451 | } |
| 5bd4f169 | 5452 | |
| 727fc41e | 5453 | tls_type = 0; |
| e054468f | 5454 | ifunc = NULL; |
| 25f23106 AM |
5455 | if (h != NULL) |
| 5456 | { | |
| 5457 | if (h->type == STT_GNU_IFUNC) | |
| 5458 | { | |
| 5459 | h->needs_plt = 1; | |
| 5460 | ifunc = &h->plt.plist; | |
| 5461 | } | |
| 5462 | } | |
| 5463 | else | |
| 5464 | { | |
| 5465 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5466 | abfd, r_symndx); | |
| 5467 | if (isym == NULL) | |
| 5468 | return FALSE; | |
| 5469 | ||
| 5470 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5471 | { | |
| 5472 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5473 | rel->r_addend, PLT_IFUNC); | |
| 5474 | if (ifunc == NULL) | |
| 5475 | return FALSE; | |
| 5476 | } | |
| 5477 | } | |
| 727fc41e | 5478 | |
| cbf95972 | 5479 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5480 | switch (r_type) |
| 5bd4f169 | 5481 | { |
| 727fc41e AM |
5482 | case R_PPC64_TLSGD: |
| 5483 | case R_PPC64_TLSLD: | |
| 5484 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5485 | its parameter symbol. */ | |
| 5486 | break; | |
| 5487 | ||
| 411e1bfb AM |
5488 | case R_PPC64_GOT_TLSLD16: |
| 5489 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5490 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5491 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5492 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5493 | goto dogottls; |
| 5494 | ||
| 5495 | case R_PPC64_GOT_TLSGD16: | |
| 5496 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5497 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5498 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5499 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5500 | goto dogottls; |
| 5501 | ||
| 5502 | case R_PPC64_GOT_TPREL16_DS: | |
| 5503 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5504 | case R_PPC64_GOT_TPREL16_HI: | |
| 5505 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5506 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5507 | info->flags |= DF_STATIC_TLS; |
| 5508 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5509 | goto dogottls; | |
| 5510 | ||
| 5511 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5512 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5513 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5514 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5515 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5516 | dogottls: | |
| 5517 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5518 | /* Fall through */ |
| 411e1bfb | 5519 | |
| 5bd4f169 | 5520 | case R_PPC64_GOT16: |
| 5bd4f169 | 5521 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5522 | case R_PPC64_GOT16_HA: |
| 5523 | case R_PPC64_GOT16_HI: | |
| 5524 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5525 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5526 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5527 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5528 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5529 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5530 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5531 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5532 | || r_type == R_PPC64_GOT16 | |
| 5533 | || r_type == R_PPC64_GOT16_DS) | |
| 5534 | { | |
| 5535 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5536 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5537 | } |
| 5538 | ||
| e717da7e AM |
5539 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5540 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5541 | return FALSE; |
| 5bd4f169 AM |
5542 | |
| 5543 | if (h != NULL) | |
| 5544 | { | |
| 411e1bfb AM |
5545 | struct ppc_link_hash_entry *eh; |
| 5546 | struct got_entry *ent; | |
| 65f38f15 | 5547 | |
| 411e1bfb AM |
5548 | eh = (struct ppc_link_hash_entry *) h; |
| 5549 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5550 | if (ent->addend == rel->r_addend | |
| e717da7e | 5551 | && ent->owner == abfd |
| 411e1bfb AM |
5552 | && ent->tls_type == tls_type) |
| 5553 | break; | |
| 5554 | if (ent == NULL) | |
| 5bd4f169 | 5555 | { |
| 411e1bfb | 5556 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5557 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5558 | if (ent == NULL) |
| b34976b6 | 5559 | return FALSE; |
| 411e1bfb AM |
5560 | ent->next = eh->elf.got.glist; |
| 5561 | ent->addend = rel->r_addend; | |
| e717da7e | 5562 | ent->owner = abfd; |
| 411e1bfb | 5563 | ent->tls_type = tls_type; |
| 927be08e | 5564 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5565 | ent->got.refcount = 0; |
| 5566 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5567 | } |
| 411e1bfb | 5568 | ent->got.refcount += 1; |
| e7b938ca | 5569 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5570 | } |
| 411e1bfb AM |
5571 | else |
| 5572 | /* This is a global offset table entry for a local symbol. */ | |
| 5573 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5574 | rel->r_addend, tls_type)) | |
| 5575 | return FALSE; | |
| a345bc8d AM |
5576 | |
| 5577 | /* We may also need a plt entry if the symbol turns out to be | |
| 5578 | an ifunc. */ | |
| 0e1862bb | 5579 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5580 | { |
| 5581 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5582 | return FALSE; | |
| 5583 | } | |
| 5bd4f169 AM |
5584 | break; |
| 5585 | ||
| 5bd4f169 | 5586 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5587 | case R_PPC64_PLT16_HI: |
| 5588 | case R_PPC64_PLT16_LO: | |
| 5589 | case R_PPC64_PLT32: | |
| 5590 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5591 | /* This symbol requires a procedure linkage table entry. */ |
| 5592 | plt_list = ifunc; | |
| 5593 | if (h != NULL) | |
| e054468f | 5594 | { |
| e054468f AM |
5595 | h->needs_plt = 1; |
| 5596 | if (h->root.root.string[0] == '.' | |
| 5597 | && h->root.root.string[1] != '\0') | |
| 5598 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5599 | plt_list = &h->plt.plist; |
| 5600 | } | |
| 5601 | if (plt_list == NULL) | |
| 5602 | { | |
| 5603 | /* It does not make sense to have a procedure linkage | |
| 5604 | table entry for a non-ifunc local symbol. */ | |
| 5605 | info->callbacks->einfo | |
| 695344c0 | 5606 | /* xgettext:c-format */ |
| 174d0a74 | 5607 | (_("%H: %s reloc against local symbol\n"), |
| cbf95972 AM |
5608 | abfd, sec, rel->r_offset, |
| 5609 | ppc64_elf_howto_table[r_type]->name); | |
| 5610 | bfd_set_error (bfd_error_bad_value); | |
| 5611 | return FALSE; | |
| e054468f | 5612 | } |
| cbf95972 AM |
5613 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5614 | return FALSE; | |
| 5bd4f169 AM |
5615 | break; |
| 5616 | ||
| 5617 | /* The following relocations don't need to propagate the | |
| 5618 | relocation if linking a shared object since they are | |
| 5619 | section relative. */ | |
| 5620 | case R_PPC64_SECTOFF: | |
| 5621 | case R_PPC64_SECTOFF_LO: | |
| 5622 | case R_PPC64_SECTOFF_HI: | |
| 5623 | case R_PPC64_SECTOFF_HA: | |
| 5624 | case R_PPC64_SECTOFF_DS: | |
| 5625 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5626 | case R_PPC64_DTPREL16: |
| 5627 | case R_PPC64_DTPREL16_LO: | |
| 5628 | case R_PPC64_DTPREL16_HI: | |
| 5629 | case R_PPC64_DTPREL16_HA: | |
| 5630 | case R_PPC64_DTPREL16_DS: | |
| 5631 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5632 | case R_PPC64_DTPREL16_HIGH: |
| 5633 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5634 | case R_PPC64_DTPREL16_HIGHER: |
| 5635 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5636 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5637 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5638 | break; |
| 5639 | ||
| ad8e1ba5 | 5640 | /* Nor do these. */ |
| 25f23106 AM |
5641 | case R_PPC64_REL16: |
| 5642 | case R_PPC64_REL16_LO: | |
| 5643 | case R_PPC64_REL16_HI: | |
| 5644 | case R_PPC64_REL16_HA: | |
| a680de9a | 5645 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5646 | break; |
| 5647 | ||
| 45965137 AM |
5648 | /* Not supported as a dynamic relocation. */ |
| 5649 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5650 | if (bfd_link_pic (info)) |
| 45965137 AM |
5651 | { |
| 5652 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5653 | ppc_howto_init (); | |
| 695344c0 | 5654 | /* xgettext:c-format */ |
| 174d0a74 | 5655 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| 45965137 AM |
5656 | "in shared libraries and PIEs.\n"), |
| 5657 | abfd, sec, rel->r_offset, | |
| 5658 | ppc64_elf_howto_table[r_type]->name); | |
| 5659 | bfd_set_error (bfd_error_bad_value); | |
| 5660 | return FALSE; | |
| 5661 | } | |
| 5662 | break; | |
| 5663 | ||
| ad8e1ba5 | 5664 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5665 | case R_PPC64_TOC16_DS: |
| 5666 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5667 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5668 | /* Fall through. */ |
| ad8e1ba5 AM |
5669 | case R_PPC64_TOC16_LO: |
| 5670 | case R_PPC64_TOC16_HI: | |
| 5671 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5672 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5673 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5674 | break; |
| 5675 | ||
| 006589cf AM |
5676 | /* Marker reloc. */ |
| 5677 | case R_PPC64_ENTRY: | |
| 5678 | break; | |
| 5679 | ||
| 5bd4f169 AM |
5680 | /* This relocation describes the C++ object vtable hierarchy. |
| 5681 | Reconstruct it for later use during GC. */ | |
| 5682 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5683 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5684 | return FALSE; |
| 5bd4f169 AM |
5685 | break; |
| 5686 | ||
| 5687 | /* This relocation describes which C++ vtable entries are actually | |
| 5688 | used. Record for later use during GC. */ | |
| 5689 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5690 | BFD_ASSERT (h != NULL); |
| 5691 | if (h != NULL | |
| 5692 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5693 | return FALSE; |
| 5bd4f169 AM |
5694 | break; |
| 5695 | ||
| 721956f4 AM |
5696 | case R_PPC64_REL14: |
| 5697 | case R_PPC64_REL14_BRTAKEN: | |
| 5698 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5699 | { |
| 5700 | asection *dest = NULL; | |
| 5701 | ||
| 5702 | /* Heuristic: If jumping outside our section, chances are | |
| 5703 | we are going to need a stub. */ | |
| 5704 | if (h != NULL) | |
| 5705 | { | |
| 5706 | /* If the sym is weak it may be overridden later, so | |
| 5707 | don't assume we know where a weak sym lives. */ | |
| 5708 | if (h->root.type == bfd_link_hash_defined) | |
| 5709 | dest = h->root.u.def.section; | |
| 5710 | } | |
| 5711 | else | |
| 87d72d41 AM |
5712 | { |
| 5713 | Elf_Internal_Sym *isym; | |
| 5714 | ||
| 5715 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5716 | abfd, r_symndx); | |
| 5717 | if (isym == NULL) | |
| 5718 | return FALSE; | |
| 5719 | ||
| 5720 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5721 | } | |
| 5722 | ||
| 220c76dd | 5723 | if (dest != sec) |
| 7c8fe5c4 | 5724 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5725 | } |
| 721956f4 AM |
5726 | /* Fall through. */ |
| 5727 | ||
| 5d1634d7 | 5728 | case R_PPC64_REL24: |
| cbf95972 AM |
5729 | plt_list = ifunc; |
| 5730 | if (h != NULL) | |
| 5d1634d7 | 5731 | { |
| e054468f AM |
5732 | h->needs_plt = 1; |
| 5733 | if (h->root.root.string[0] == '.' | |
| 5734 | && h->root.root.string[1] != '\0') | |
| 5735 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5736 | |
| 3a71aa26 | 5737 | if (h == tga || h == dottga) |
| cbf95972 AM |
5738 | { |
| 5739 | sec->has_tls_reloc = 1; | |
| 5740 | if (rel != relocs | |
| 5741 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5742 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5743 | /* We have a new-style __tls_get_addr call with | |
| 5744 | a marker reloc. */ | |
| 5745 | ; | |
| 5746 | else | |
| 5747 | /* Mark this section as having an old-style call. */ | |
| 5748 | sec->has_tls_get_addr_call = 1; | |
| 5749 | } | |
| 5750 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5751 | } |
| cbf95972 AM |
5752 | |
| 5753 | /* We may need a .plt entry if the function this reloc | |
| 5754 | refers to is in a shared lib. */ | |
| 5755 | if (plt_list | |
| 5756 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5757 | return FALSE; | |
| 411e1bfb AM |
5758 | break; |
| 5759 | ||
| cbf95972 AM |
5760 | case R_PPC64_ADDR14: |
| 5761 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5762 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5763 | case R_PPC64_ADDR24: | |
| 5764 | goto dodyn; | |
| 5765 | ||
| 411e1bfb AM |
5766 | case R_PPC64_TPREL64: |
| 5767 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5768 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5769 | info->flags |= DF_STATIC_TLS; |
| 5770 | goto dotlstoc; | |
| 5771 | ||
| 5772 | case R_PPC64_DTPMOD64: | |
| 5773 | if (rel + 1 < rel_end | |
| 5774 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5775 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5776 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5777 | else |
| 951fd09b | 5778 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5779 | goto dotlstoc; |
| 5780 | ||
| 5781 | case R_PPC64_DTPREL64: | |
| 5782 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5783 | if (rel != relocs | |
| 5784 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5785 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5786 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5787 | Don't mark with TLS_DTPREL. */ | |
| 5788 | goto dodyn; | |
| 5789 | ||
| 5790 | dotlstoc: | |
| 5791 | sec->has_tls_reloc = 1; | |
| 5792 | if (h != NULL) | |
| 5793 | { | |
| 5794 | struct ppc_link_hash_entry *eh; | |
| 5795 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5796 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5797 | } |
| 5798 | else | |
| 5799 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5800 | rel->r_addend, tls_type)) | |
| 5801 | return FALSE; | |
| 5802 | ||
| 7c8fe5c4 AM |
5803 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5804 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5805 | { |
| 3a71aa26 AM |
5806 | bfd_size_type amt; |
| 5807 | ||
| e7b938ca | 5808 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5809 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5810 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5811 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5812 | return FALSE; | |
| 5813 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5814 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5815 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5816 | return FALSE; |
| 7c8fe5c4 AM |
5817 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5818 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5819 | } |
| 5820 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5821 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5822 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5823 | |
| 5824 | /* Mark the second slot of a GD or LD entry. | |
| 5825 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5826 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5827 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5828 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5829 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5830 | goto dodyn; |
| 5831 | ||
| 5832 | case R_PPC64_TPREL16: | |
| 5833 | case R_PPC64_TPREL16_LO: | |
| 5834 | case R_PPC64_TPREL16_HI: | |
| 5835 | case R_PPC64_TPREL16_HA: | |
| 5836 | case R_PPC64_TPREL16_DS: | |
| 5837 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5838 | case R_PPC64_TPREL16_HIGH: |
| 5839 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5840 | case R_PPC64_TPREL16_HIGHER: |
| 5841 | case R_PPC64_TPREL16_HIGHERA: | |
| 5842 | case R_PPC64_TPREL16_HIGHEST: | |
| 5843 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5844 | if (bfd_link_dll (info)) |
| 5845 | info->flags |= DF_STATIC_TLS; | |
| 5846 | goto dodyn; | |
| 5d1634d7 | 5847 | |
| e86ce104 | 5848 | case R_PPC64_ADDR64: |
| b9399fcf | 5849 | if (is_opd |
| 1e2f5b6e | 5850 | && rel + 1 < rel_end |
| 4ce794b7 | 5851 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5852 | { |
| 8387904d | 5853 | if (h != NULL) |
| 8c5b4e52 | 5854 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 1e2f5b6e | 5855 | } |
| e86ce104 AM |
5856 | /* Fall through. */ |
| 5857 | ||
| 65f38f15 AM |
5858 | case R_PPC64_ADDR16: |
| 5859 | case R_PPC64_ADDR16_DS: | |
| 5860 | case R_PPC64_ADDR16_HA: | |
| 5861 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5862 | case R_PPC64_ADDR16_HIGH: |
| 5863 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5864 | case R_PPC64_ADDR16_HIGHER: |
| 5865 | case R_PPC64_ADDR16_HIGHERA: | |
| 5866 | case R_PPC64_ADDR16_HIGHEST: | |
| 5867 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5868 | case R_PPC64_ADDR16_LO: | |
| 5869 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5870 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5871 | && rel->r_addend == 0) |
| 5872 | { | |
| 5873 | /* We may need a .plt entry if this reloc refers to a | |
| 5874 | function in a shared lib. */ | |
| 5875 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5876 | return FALSE; | |
| 5877 | h->pointer_equality_needed = 1; | |
| 5878 | } | |
| 5879 | /* Fall through. */ | |
| 5880 | ||
| 5881 | case R_PPC64_REL30: | |
| 5882 | case R_PPC64_REL32: | |
| 5883 | case R_PPC64_REL64: | |
| 65f38f15 | 5884 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5885 | case R_PPC64_UADDR16: |
| 5886 | case R_PPC64_UADDR32: | |
| 5887 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5888 | case R_PPC64_TOC: |
| 0e1862bb | 5889 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5890 | /* We may need a copy reloc. */ |
| f5385ebf | 5891 | h->non_got_ref = 1; |
| 81848ca0 | 5892 | |
| 41bd81ab | 5893 | /* Don't propagate .opd relocs. */ |
| b9399fcf | 5894 | if (NO_OPD_RELOCS && is_opd) |
| e86ce104 | 5895 | break; |
| e86ce104 | 5896 | |
| 65f38f15 AM |
5897 | /* If we are creating a shared library, and this is a reloc |
| 5898 | against a global symbol, or a non PC relative reloc | |
| 5899 | against a local symbol, then we need to copy the reloc | |
| 5900 | into the shared library. However, if we are linking with | |
| 5901 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5902 | global symbol which is defined in an object we are | |
| 5903 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5904 | this point we have not seen all the input files, so it is | |
| 5905 | possible that DEF_REGULAR is not set now but will be set | |
| 5906 | later (it is never cleared). In case of a weak definition, | |
| 5907 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5908 | a shared library. We account for that possibility below by | |
| f4656909 | 5909 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5910 | table entry. A similar situation occurs when creating |
| 5911 | shared libraries and symbol visibility changes render the | |
| 5912 | symbol local. | |
| 5913 | ||
| 5914 | If on the other hand, we are creating an executable, we | |
| 5915 | may need to keep relocations for symbols satisfied by a | |
| 5916 | dynamic library if we manage to avoid copy relocs for the | |
| 5917 | symbol. */ | |
| 411e1bfb | 5918 | dodyn: |
| 0e1862bb | 5919 | if ((bfd_link_pic (info) |
| 1d483afe | 5920 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5921 | || (h != NULL |
| 198f1157 | 5922 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5923 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5924 | || !h->def_regular)))) |
| f4656909 | 5925 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5926 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5927 | && h != NULL |
| 5928 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5929 | || !h->def_regular)) |
| 0e1862bb | 5930 | || (!bfd_link_pic (info) |
| 25f23106 | 5931 | && ifunc != NULL)) |
| 5bd4f169 | 5932 | { |
| 65f38f15 AM |
5933 | /* We must copy these reloc types into the output file. |
| 5934 | Create a reloc section in dynobj and make room for | |
| 5935 | this reloc. */ | |
| 5bd4f169 AM |
5936 | if (sreloc == NULL) |
| 5937 | { | |
| 83bac4b0 NC |
5938 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5939 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5940 | |
| 5bd4f169 | 5941 | if (sreloc == NULL) |
| 83bac4b0 | 5942 | return FALSE; |
| 5bd4f169 AM |
5943 | } |
| 5944 | ||
| 65f38f15 AM |
5945 | /* If this is a global symbol, we count the number of |
| 5946 | relocations we need for this symbol. */ | |
| 5947 | if (h != NULL) | |
| 5948 | { | |
| 19e08130 AM |
5949 | struct elf_dyn_relocs *p; |
| 5950 | struct elf_dyn_relocs **head; | |
| 5951 | ||
| ec338859 | 5952 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5953 | p = *head; |
| 5954 | if (p == NULL || p->sec != sec) | |
| 5955 | { | |
| 5956 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5957 | if (p == NULL) | |
| 5958 | return FALSE; | |
| 5959 | p->next = *head; | |
| 5960 | *head = p; | |
| 5961 | p->sec = sec; | |
| 5962 | p->count = 0; | |
| 5963 | p->pc_count = 0; | |
| 5964 | } | |
| 5965 | p->count += 1; | |
| 5966 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5967 | p->pc_count += 1; | |
| 65f38f15 AM |
5968 | } |
| 5969 | else | |
| 5970 | { | |
| ec338859 AM |
5971 | /* Track dynamic relocs needed for local syms too. |
| 5972 | We really need local syms available to do this | |
| 5973 | easily. Oh well. */ | |
| 19e08130 AM |
5974 | struct ppc_dyn_relocs *p; |
| 5975 | struct ppc_dyn_relocs **head; | |
| 5976 | bfd_boolean is_ifunc; | |
| ec338859 | 5977 | asection *s; |
| 6edfbbad | 5978 | void *vpp; |
| 87d72d41 | 5979 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5980 | |
| 87d72d41 AM |
5981 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5982 | abfd, r_symndx); | |
| 5983 | if (isym == NULL) | |
| b34976b6 | 5984 | return FALSE; |
| ec338859 | 5985 | |
| 87d72d41 AM |
5986 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5987 | if (s == NULL) | |
| 5988 | s = sec; | |
| 5989 | ||
| 6edfbbad | 5990 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5991 | head = (struct ppc_dyn_relocs **) vpp; |
| 5992 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5993 | p = *head; | |
| 5994 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5995 | p = p->next; | |
| 5996 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5997 | { | |
| 5998 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5999 | if (p == NULL) | |
| 6000 | return FALSE; | |
| 6001 | p->next = *head; | |
| 6002 | *head = p; | |
| 6003 | p->sec = sec; | |
| 6004 | p->ifunc = is_ifunc; | |
| 6005 | p->count = 0; | |
| 6006 | } | |
| 6007 | p->count += 1; | |
| ec338859 | 6008 | } |
| 65f38f15 | 6009 | } |
| 5bd4f169 | 6010 | break; |
| 65f38f15 AM |
6011 | |
| 6012 | default: | |
| 96e0dda4 | 6013 | break; |
| 5bd4f169 AM |
6014 | } |
| 6015 | } | |
| 6016 | ||
| b34976b6 | 6017 | return TRUE; |
| 5bd4f169 AM |
6018 | } |
| 6019 | ||
| ee67d69a AM |
6020 | /* Merge backend specific data from an object file to the output |
| 6021 | object file when linking. */ | |
| 6022 | ||
| 6023 | static bfd_boolean | |
| 50e03d47 | 6024 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6025 | { |
| 50e03d47 | 6026 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6027 | unsigned long iflags, oflags; |
| 6028 | ||
| 6029 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6030 | return TRUE; | |
| 6031 | ||
| 6032 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6033 | return TRUE; | |
| 6034 | ||
| 50e03d47 | 6035 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6036 | return FALSE; |
| 6037 | ||
| 6038 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6039 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6040 | ||
| f6c7c3e8 | 6041 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6042 | { |
| 4eca0228 | 6043 | _bfd_error_handler |
| 695344c0 | 6044 | /* xgettext:c-format */ |
| 871b3ab2 | 6045 | (_("%pB uses unknown e_flags 0x%lx"), ibfd, iflags); |
| ee67d69a AM |
6046 | bfd_set_error (bfd_error_bad_value); |
| 6047 | return FALSE; | |
| 6048 | } | |
| f6c7c3e8 | 6049 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6050 | { |
| 4eca0228 | 6051 | _bfd_error_handler |
| 695344c0 | 6052 | /* xgettext:c-format */ |
| 871b3ab2 | 6053 | (_("%pB: ABI version %ld is not compatible with ABI version %ld output"), |
| ee67d69a AM |
6054 | ibfd, iflags, oflags); |
| 6055 | bfd_set_error (bfd_error_bad_value); | |
| 6056 | return FALSE; | |
| 6057 | } | |
| 6058 | ||
| 50e03d47 | 6059 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6060 | |
| ee67d69a | 6061 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6062 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6063 | |
| 6064 | return TRUE; | |
| 6065 | } | |
| 6066 | ||
| 6067 | static bfd_boolean | |
| 6068 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6069 | { | |
| 6070 | /* Print normal ELF private data. */ | |
| 6071 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6072 | ||
| 6073 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6074 | { | |
| 6075 | FILE *file = ptr; | |
| 6076 | ||
| ee67d69a AM |
6077 | fprintf (file, _("private flags = 0x%lx:"), |
| 6078 | elf_elfheader (abfd)->e_flags); | |
| 6079 | ||
| 6080 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6081 | fprintf (file, _(" [abiv%ld]"), | |
| 6082 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6083 | fputc ('\n', file); | |
| 6084 | } | |
| 6085 | ||
| 6086 | return TRUE; | |
| 6087 | } | |
| 6088 | ||
| 8387904d | 6089 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6090 | of the code entry point, and its section, which must be in the same |
| 6091 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6092 | |
| 6093 | static bfd_vma | |
| 6094 | opd_entry_value (asection *opd_sec, | |
| 6095 | bfd_vma offset, | |
| 6096 | asection **code_sec, | |
| aef36ac1 AM |
6097 | bfd_vma *code_off, |
| 6098 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6099 | { |
| 6100 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6101 | Elf_Internal_Rela *relocs; |
| 8387904d | 6102 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6103 | bfd_vma val; |
| 8387904d | 6104 | |
| 9f296da3 AM |
6105 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6106 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6107 | if (opd_sec->reloc_count == 0) |
| 6108 | { | |
| 729eabd5 | 6109 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6110 | |
| 729eabd5 AM |
6111 | if (contents == NULL) |
| 6112 | { | |
| 6113 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6114 | return (bfd_vma) -1; | |
| 6115 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6116 | } | |
| ee1e4ede | 6117 | |
| dbb3fbbb | 6118 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6119 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6120 | return (bfd_vma) -1; |
| 6121 | ||
| 729eabd5 | 6122 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6123 | if (code_sec != NULL) |
| 6124 | { | |
| 6125 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6126 | |
| aef36ac1 | 6127 | if (in_code_sec) |
| 4b85d634 | 6128 | { |
| aef36ac1 AM |
6129 | sec = *code_sec; |
| 6130 | if (sec->vma <= val | |
| 6131 | && val < sec->vma + sec->size) | |
| 6132 | likely = sec; | |
| 6133 | else | |
| 6134 | val = -1; | |
| 6135 | } | |
| 6136 | else | |
| 6137 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6138 | if (sec->vma <= val | |
| 6139 | && (sec->flags & SEC_LOAD) != 0 | |
| 6140 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6141 | likely = sec; | |
| 6142 | if (likely != NULL) | |
| 6143 | { | |
| 6144 | *code_sec = likely; | |
| 6145 | if (code_off != NULL) | |
| 6146 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6147 | } |
| 6148 | } | |
| aef36ac1 | 6149 | return val; |
| 4b85d634 AM |
6150 | } |
| 6151 | ||
| 0c8d6e5c | 6152 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6153 | |
| 729eabd5 | 6154 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6155 | if (relocs == NULL) |
| 6156 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6157 | /* PR 17512: file: df8e1fd6. */ |
| 6158 | if (relocs == NULL) | |
| 6159 | return (bfd_vma) -1; | |
| 645ea6a9 | 6160 | |
| 8387904d | 6161 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6162 | lo = relocs; |
| 8387904d | 6163 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6164 | val = (bfd_vma) -1; |
| 8387904d AM |
6165 | while (lo < hi) |
| 6166 | { | |
| 6167 | look = lo + (hi - lo) / 2; | |
| 6168 | if (look->r_offset < offset) | |
| 6169 | lo = look + 1; | |
| 6170 | else if (look->r_offset > offset) | |
| 6171 | hi = look; | |
| 6172 | else | |
| 6173 | { | |
| 0ffa91dd NC |
6174 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6175 | ||
| 8387904d AM |
6176 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6177 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6178 | { | |
| 6179 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6180 | asection *sec = NULL; |
| 8387904d | 6181 | |
| b53dfeb2 AM |
6182 | if (symndx >= symtab_hdr->sh_info |
| 6183 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6184 | { |
| 6185 | struct elf_link_hash_entry **sym_hashes; | |
| 6186 | struct elf_link_hash_entry *rh; | |
| 6187 | ||
| 6188 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6189 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6190 | if (rh != NULL) |
| 6191 | { | |
| 6192 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6193 | if (rh->root.type != bfd_link_hash_defined |
| 6194 | && rh->root.type != bfd_link_hash_defweak) | |
| 6195 | break; | |
| 6196 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6197 | { |
| bb854a36 AM |
6198 | val = rh->root.u.def.value; |
| 6199 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6200 | } |
| 6201 | } | |
| 6202 | } | |
| 6203 | ||
| 6204 | if (sec == NULL) | |
| 6205 | { | |
| 6206 | Elf_Internal_Sym *sym; | |
| 6207 | ||
| 6208 | if (symndx < symtab_hdr->sh_info) | |
| 6209 | { | |
| 6210 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6211 | if (sym == NULL) | |
| 6212 | { | |
| 6213 | size_t symcnt = symtab_hdr->sh_info; | |
| 6214 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6215 | symcnt, 0, | |
| 6216 | NULL, NULL, NULL); | |
| 6217 | if (sym == NULL) | |
| 6218 | break; | |
| 6219 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6220 | } | |
| 6221 | sym += symndx; | |
| 128205bb AM |
6222 | } |
| 6223 | else | |
| 6224 | { | |
| b53dfeb2 AM |
6225 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6226 | 1, symndx, | |
| 6227 | NULL, NULL, NULL); | |
| 128205bb AM |
6228 | if (sym == NULL) |
| 6229 | break; | |
| 128205bb | 6230 | } |
| b53dfeb2 AM |
6231 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6232 | if (sec == NULL) | |
| 6233 | break; | |
| 6234 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6235 | val = sym->st_value; | |
| 8387904d | 6236 | } |
| b53dfeb2 | 6237 | |
| 8387904d AM |
6238 | val += look->r_addend; |
| 6239 | if (code_off != NULL) | |
| 6240 | *code_off = val; | |
| 6241 | if (code_sec != NULL) | |
| aef36ac1 AM |
6242 | { |
| 6243 | if (in_code_sec && *code_sec != sec) | |
| 6244 | return -1; | |
| 6245 | else | |
| 6246 | *code_sec = sec; | |
| 6247 | } | |
| b53dfeb2 | 6248 | if (sec->output_section != NULL) |
| 8387904d | 6249 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6250 | } |
| 6251 | break; | |
| 6252 | } | |
| 6253 | } | |
| 645ea6a9 | 6254 | |
| 645ea6a9 | 6255 | return val; |
| 8387904d AM |
6256 | } |
| 6257 | ||
| aef36ac1 AM |
6258 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6259 | function size and set *CODE_OFF to the function's entry point, | |
| 6260 | otherwise return zero. */ | |
| 9f296da3 | 6261 | |
| aef36ac1 AM |
6262 | static bfd_size_type |
| 6263 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6264 | bfd_vma *code_off) | |
| 9f296da3 | 6265 | { |
| aef36ac1 AM |
6266 | bfd_size_type size; |
| 6267 | ||
| 6268 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6269 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6270 | return 0; | |
| 6271 | ||
| 6272 | size = 0; | |
| 6273 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6274 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6275 | ||
| 6276 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6277 | { |
| b07bca4e AM |
6278 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6279 | bfd_vma symval = sym->value; | |
| 6280 | ||
| 6281 | if (opd != NULL | |
| 6282 | && opd->adjust != NULL | |
| 6283 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6284 | { | |
| 6285 | /* opd_entry_value will use cached relocs that have been | |
| 6286 | adjusted, but with raw symbols. That means both local | |
| 6287 | and global symbols need adjusting. */ | |
| 6288 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6289 | if (adjust == -1) | |
| 6290 | return 0; | |
| 6291 | symval += adjust; | |
| 6292 | } | |
| 6293 | ||
| 6294 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6295 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6296 | return 0; | |
| 6297 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6298 | symbol. This size has nothing to do with the code size of the | |
| 6299 | function, which is what we're supposed to return, but the | |
| 6300 | code size isn't available without looking up the dot-sym. | |
| 6301 | However, doing that would be a waste of time particularly | |
| 6302 | since elf_find_function will look at the dot-sym anyway. | |
| 6303 | Now, elf_find_function will keep the largest size of any | |
| 6304 | function sym found at the code address of interest, so return | |
| 6305 | 1 here to avoid it incorrectly caching a larger function size | |
| 6306 | for a small function. This does mean we return the wrong | |
| 6307 | size for a new-ABI function of size 24, but all that does is | |
| 6308 | disable caching for such functions. */ | |
| 6309 | if (size == 24) | |
| 6310 | size = 1; | |
| 9f296da3 | 6311 | } |
| aef36ac1 AM |
6312 | else |
| 6313 | { | |
| 6314 | if (sym->section != sec) | |
| 6315 | return 0; | |
| 6316 | *code_off = sym->value; | |
| 6317 | } | |
| 6318 | if (size == 0) | |
| 6319 | size = 1; | |
| 6320 | return size; | |
| 9f296da3 AM |
6321 | } |
| 6322 | ||
| f378ab09 AM |
6323 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6324 | object with st_other localentry bits of zero, ie. its local entry | |
| 6325 | point coincides with its global entry point. */ | |
| 6326 | ||
| 6327 | static bfd_boolean | |
| 6328 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6329 | { | |
| 6330 | return (h != NULL | |
| 6331 | && h->type == STT_FUNC | |
| 6332 | && h->root.type == bfd_link_hash_defined | |
| 6333 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6334 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6335 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6336 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6337 | } | |
| 6338 | ||
| 854b41e7 AM |
6339 | /* Return true if symbol is defined in a regular object file. */ |
| 6340 | ||
| 6341 | static bfd_boolean | |
| 6342 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6343 | { | |
| 6344 | return ((h->root.type == bfd_link_hash_defined | |
| 6345 | || h->root.type == bfd_link_hash_defweak) | |
| 6346 | && h->root.u.def.section != NULL | |
| 6347 | && h->root.u.def.section->output_section != NULL); | |
| 6348 | } | |
| 6349 | ||
| b31867b6 AM |
6350 | /* If FDH is a function descriptor symbol, return the associated code |
| 6351 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6352 | ||
| 6353 | static struct ppc_link_hash_entry * | |
| 6354 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6355 | { | |
| 6356 | if (fdh->is_func_descriptor) | |
| 6357 | { | |
| 6358 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6359 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6360 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6361 | return fh; | |
| 6362 | } | |
| 6363 | return NULL; | |
| 6364 | } | |
| 6365 | ||
| 6366 | /* If FH is a function code entry symbol, return the associated | |
| 6367 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6368 | ||
| 6369 | static struct ppc_link_hash_entry * | |
| 6370 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6371 | { | |
| 6372 | if (fh->oh != NULL | |
| 6373 | && fh->oh->is_func_descriptor) | |
| 6374 | { | |
| 6375 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6376 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6377 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6378 | return fdh; | |
| 6379 | } | |
| 6380 | return NULL; | |
| 6381 | } | |
| 6382 | ||
| 8c5b4e52 AM |
6383 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6384 | ||
| 6385 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6386 | ||
| 6387 | static bfd_boolean | |
| 6388 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6389 | { | |
| 6390 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6391 | ||
| 6392 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6393 | { | |
| 6394 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6395 | htab->need_func_desc_adj = 0; | |
| 6396 | } | |
| 6397 | return bfd_elf_gc_sections (abfd, info); | |
| 6398 | } | |
| 6399 | ||
| 74f0fb50 AM |
6400 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6401 | ||
| 6402 | static void | |
| 6403 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6404 | { | |
| 6405 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6406 | struct bfd_sym_chain *sym; | |
| 6407 | ||
| 4dfe6ac6 NC |
6408 | if (htab == NULL) |
| 6409 | return; | |
| 6410 | ||
| 74f0fb50 AM |
6411 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6412 | { | |
| b31867b6 | 6413 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6414 | asection *sec; |
| 6415 | ||
| 6416 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6417 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6418 | if (eh == NULL) |
| 6419 | continue; | |
| 6420 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6421 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6422 | continue; | |
| 6423 | ||
| b31867b6 AM |
6424 | fh = defined_code_entry (eh); |
| 6425 | if (fh != NULL) | |
| 74f0fb50 | 6426 | { |
| b31867b6 | 6427 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6428 | sec->flags |= SEC_KEEP; |
| 6429 | } | |
| 6430 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6431 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6432 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6433 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6434 | sec->flags |= SEC_KEEP; |
| 6435 | ||
| 6436 | sec = eh->elf.root.u.def.section; | |
| 6437 | sec->flags |= SEC_KEEP; | |
| 6438 | } | |
| 6439 | } | |
| 6440 | ||
| 64d03ab5 AM |
6441 | /* Mark sections containing dynamically referenced symbols. When |
| 6442 | building shared libraries, we must assume that any visible symbol is | |
| 6443 | referenced. */ | |
| 6444 | ||
| 6445 | static bfd_boolean | |
| 6446 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6447 | { | |
| 6448 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6449 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6450 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6451 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6452 | |
| 64d03ab5 | 6453 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6454 | fdh = defined_func_desc (eh); |
| 6455 | if (fdh != NULL) | |
| 6456 | eh = fdh; | |
| 64d03ab5 AM |
6457 | |
| 6458 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6459 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 87e79a65 | 6460 | && ((eh->elf.ref_dynamic && !eh->elf.forced_local) |
| 1c9177d9 | 6461 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6462 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6463 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6464 | && (!bfd_link_executable (info) |
| e278ae05 | 6465 | || info->gc_keep_exported |
| b407645f AM |
6466 | || info->export_dynamic |
| 6467 | || (eh->elf.dynamic | |
| 6468 | && d != NULL | |
| 6469 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6470 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6471 | || !bfd_hide_sym_by_version (info->version_info, |
| 6472 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6473 | { |
| 6474 | asection *code_sec; | |
| b31867b6 | 6475 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6476 | |
| 6477 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6478 | ||
| 6479 | /* Function descriptor syms cause the associated | |
| 6480 | function code sym section to be marked. */ | |
| b31867b6 AM |
6481 | fh = defined_code_entry (eh); |
| 6482 | if (fh != NULL) | |
| 6483 | { | |
| 6484 | code_sec = fh->elf.root.u.def.section; | |
| 6485 | code_sec->flags |= SEC_KEEP; | |
| 6486 | } | |
| 64d03ab5 AM |
6487 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6488 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6489 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6490 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6491 | code_sec->flags |= SEC_KEEP; |
| 6492 | } | |
| 6493 | ||
| 6494 | return TRUE; | |
| 6495 | } | |
| 6496 | ||
| 5bd4f169 AM |
6497 | /* Return the section that should be marked against GC for a given |
| 6498 | relocation. */ | |
| 6499 | ||
| 6500 | static asection * | |
| 4ce794b7 | 6501 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6502 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6503 | Elf_Internal_Rela *rel, |
| 6504 | struct elf_link_hash_entry *h, | |
| 6505 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6506 | { |
| ccfa59ea AM |
6507 | asection *rsec; |
| 6508 | ||
| ccfa59ea AM |
6509 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6510 | function sections, as all functions are referenced in .opd. */ | |
| 6511 | rsec = NULL; | |
| 6512 | if (get_opd_info (sec) != NULL) | |
| 6513 | return rsec; | |
| 1e2f5b6e | 6514 | |
| 5bd4f169 AM |
6515 | if (h != NULL) |
| 6516 | { | |
| 04c9666a | 6517 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6518 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6519 | |
| 4ce794b7 | 6520 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6521 | switch (r_type) |
| 5bd4f169 AM |
6522 | { |
| 6523 | case R_PPC64_GNU_VTINHERIT: | |
| 6524 | case R_PPC64_GNU_VTENTRY: | |
| 6525 | break; | |
| 6526 | ||
| 6527 | default: | |
| 6528 | switch (h->root.type) | |
| 6529 | { | |
| 6530 | case bfd_link_hash_defined: | |
| 6531 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6532 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6533 | fdh = defined_func_desc (eh); |
| 6534 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6535 | { |
| 6536 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6537 | a call reloc. Mark the function descriptor too | |
| 6538 | against garbage collection. */ | |
| 6539 | fdh->elf.mark = 1; | |
| 60d67dc8 AM |
6540 | if (fdh->elf.is_weakalias) |
| 6541 | weakdef (&fdh->elf)->mark = 1; | |
| 8c5b4e52 AM |
6542 | eh = fdh; |
| 6543 | } | |
| 1e2f5b6e AM |
6544 | |
| 6545 | /* Function descriptor syms cause the associated | |
| 6546 | function code sym section to be marked. */ | |
| b31867b6 AM |
6547 | fh = defined_code_entry (eh); |
| 6548 | if (fh != NULL) | |
| ccfa59ea AM |
6549 | { |
| 6550 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6551 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6552 | |
| b31867b6 | 6553 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6554 | } |
| 8387904d AM |
6555 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6556 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6557 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6558 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6559 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6560 | else |
| 1e2f5b6e AM |
6561 | rsec = h->root.u.def.section; |
| 6562 | break; | |
| 5bd4f169 AM |
6563 | |
| 6564 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6565 | rsec = h->root.u.c.p->section; |
| 6566 | break; | |
| 5bd4f169 AM |
6567 | |
| 6568 | default: | |
| fb34365b | 6569 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6570 | } |
| 6571 | } | |
| 6572 | } | |
| 6573 | else | |
| 6574 | { | |
| 74f0fb50 | 6575 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6576 | |
| 6577 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6578 | opd = get_opd_info (rsec); |
| 6579 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6580 | { |
| 74f0fb50 | 6581 | rsec->gc_mark = 1; |
| ccfa59ea | 6582 | |
| 51aecdc5 | 6583 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6584 | } |
| 5bd4f169 AM |
6585 | } |
| 6586 | ||
| 1e2f5b6e | 6587 | return rsec; |
| 5bd4f169 AM |
6588 | } |
| 6589 | ||
| deb0e272 AM |
6590 | /* The maximum size of .sfpr. */ |
| 6591 | #define SFPR_MAX (218*4) | |
| 6592 | ||
| 6593 | struct sfpr_def_parms | |
| 6594 | { | |
| 699733f6 AM |
6595 | const char name[12]; |
| 6596 | unsigned char lo, hi; | |
| deb0e272 AM |
6597 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6598 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6599 | }; | |
| 6600 | ||
| a4b6fadd AM |
6601 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6602 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6603 | instead. */ | |
| deb0e272 | 6604 | |
| 4dfe6ac6 | 6605 | static bfd_boolean |
| a4b6fadd AM |
6606 | sfpr_define (struct bfd_link_info *info, |
| 6607 | const struct sfpr_def_parms *parm, | |
| 6608 | asection *stub_sec) | |
| deb0e272 AM |
6609 | { |
| 6610 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6611 | unsigned int i; | |
| 6612 | size_t len = strlen (parm->name); | |
| 6613 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6614 | char sym[16]; |
| deb0e272 | 6615 | |
| 4dfe6ac6 NC |
6616 | if (htab == NULL) |
| 6617 | return FALSE; | |
| 6618 | ||
| deb0e272 AM |
6619 | memcpy (sym, parm->name, len); |
| 6620 | sym[len + 2] = 0; | |
| 6621 | ||
| 6622 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6623 | { | |
| a4b6fadd | 6624 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6625 | |
| 6626 | sym[len + 0] = i / 10 + '0'; | |
| 6627 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6628 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6629 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6630 | if (stub_sec != NULL) |
| deb0e272 | 6631 | { |
| a4b6fadd AM |
6632 | if (h != NULL |
| 6633 | && h->elf.root.type == bfd_link_hash_defined | |
| 6634 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6635 | { | |
| 6636 | struct elf_link_hash_entry *s; | |
| 6637 | char buf[32]; | |
| 6638 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6639 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6640 | if (s == NULL) | |
| 6641 | return FALSE; | |
| 6642 | if (s->root.type == bfd_link_hash_new | |
| 6643 | || (s->root.type = bfd_link_hash_defined | |
| 6644 | && s->root.u.def.section == stub_sec)) | |
| 6645 | { | |
| 6646 | s->root.type = bfd_link_hash_defined; | |
| 6647 | s->root.u.def.section = stub_sec; | |
| 6648 | s->root.u.def.value = (stub_sec->size | |
| 6649 | + h->elf.root.u.def.value); | |
| 6650 | s->ref_regular = 1; | |
| 6651 | s->def_regular = 1; | |
| 6652 | s->ref_regular_nonweak = 1; | |
| 6653 | s->forced_local = 1; | |
| 6654 | s->non_elf = 0; | |
| 6655 | s->root.linker_def = 1; | |
| 6656 | } | |
| 6657 | } | |
| 6658 | continue; | |
| 6659 | } | |
| 6660 | if (h != NULL) | |
| 6661 | { | |
| 6662 | h->save_res = 1; | |
| 6663 | if (!h->elf.def_regular) | |
| deb0e272 | 6664 | { |
| a4b6fadd AM |
6665 | h->elf.root.type = bfd_link_hash_defined; |
| 6666 | h->elf.root.u.def.section = htab->sfpr; | |
| 6667 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6668 | h->elf.type = STT_FUNC; | |
| 6669 | h->elf.def_regular = 1; | |
| b32547cd | 6670 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6671 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6672 | writing = TRUE; | |
| deb0e272 | 6673 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6674 | { |
| 6675 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6676 | if (htab->sfpr->contents == NULL) | |
| 6677 | return FALSE; | |
| 6678 | } | |
| deb0e272 AM |
6679 | } |
| 6680 | } | |
| 6681 | if (writing) | |
| 6682 | { | |
| 6683 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6684 | if (i != parm->hi) | |
| 6685 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6686 | else | |
| 6687 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6688 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6689 | } | |
| 6690 | } | |
| 6691 | ||
| 6692 | return TRUE; | |
| 6693 | } | |
| 6694 | ||
| 6695 | static bfd_byte * | |
| 6696 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6697 | { | |
| 6698 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6699 | return p + 4; | |
| 6700 | } | |
| 6701 | ||
| 6702 | static bfd_byte * | |
| 6703 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6704 | { | |
| 6705 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6706 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6707 | p = p + 4; |
| 6708 | bfd_put_32 (abfd, BLR, p); | |
| 6709 | return p + 4; | |
| 6710 | } | |
| 6711 | ||
| 6712 | static bfd_byte * | |
| 6713 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6714 | { | |
| 6715 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6716 | return p + 4; | |
| 6717 | } | |
| 6718 | ||
| 6719 | static bfd_byte * | |
| 6720 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6721 | { | |
| a078d95a | 6722 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6723 | p = p + 4; |
| 6724 | p = restgpr0 (abfd, p, r); | |
| 6725 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6726 | p = p + 4; | |
| 6727 | if (r == 29) | |
| 6728 | { | |
| 6729 | p = restgpr0 (abfd, p, 30); | |
| 6730 | p = restgpr0 (abfd, p, 31); | |
| 6731 | } | |
| 6732 | bfd_put_32 (abfd, BLR, p); | |
| 6733 | return p + 4; | |
| 6734 | } | |
| 6735 | ||
| 6736 | static bfd_byte * | |
| 6737 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6738 | { | |
| 6739 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6740 | return p + 4; | |
| 6741 | } | |
| 6742 | ||
| 6743 | static bfd_byte * | |
| 6744 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6745 | { | |
| 6746 | p = savegpr1 (abfd, p, r); | |
| 6747 | bfd_put_32 (abfd, BLR, p); | |
| 6748 | return p + 4; | |
| 6749 | } | |
| 6750 | ||
| 6751 | static bfd_byte * | |
| 6752 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6753 | { | |
| 6754 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6755 | return p + 4; | |
| 6756 | } | |
| 6757 | ||
| 6758 | static bfd_byte * | |
| 6759 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6760 | { | |
| 6761 | p = restgpr1 (abfd, p, r); | |
| 6762 | bfd_put_32 (abfd, BLR, p); | |
| 6763 | return p + 4; | |
| 6764 | } | |
| 6765 | ||
| 6766 | static bfd_byte * | |
| 6767 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6768 | { | |
| 6769 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6770 | return p + 4; | |
| 6771 | } | |
| 6772 | ||
| 6773 | static bfd_byte * | |
| 6774 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6775 | { | |
| 6776 | p = savefpr (abfd, p, r); | |
| a078d95a | 6777 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6778 | p = p + 4; |
| 6779 | bfd_put_32 (abfd, BLR, p); | |
| 6780 | return p + 4; | |
| 6781 | } | |
| 6782 | ||
| 6783 | static bfd_byte * | |
| 6784 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6785 | { | |
| 6786 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6787 | return p + 4; | |
| 6788 | } | |
| 6789 | ||
| 6790 | static bfd_byte * | |
| 6791 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6792 | { | |
| a078d95a | 6793 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6794 | p = p + 4; |
| 6795 | p = restfpr (abfd, p, r); | |
| 6796 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6797 | p = p + 4; | |
| 6798 | if (r == 29) | |
| 6799 | { | |
| 6800 | p = restfpr (abfd, p, 30); | |
| 6801 | p = restfpr (abfd, p, 31); | |
| 6802 | } | |
| 6803 | bfd_put_32 (abfd, BLR, p); | |
| 6804 | return p + 4; | |
| 6805 | } | |
| 6806 | ||
| 6807 | static bfd_byte * | |
| 6808 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6809 | { | |
| 6810 | p = savefpr (abfd, p, r); | |
| 6811 | bfd_put_32 (abfd, BLR, p); | |
| 6812 | return p + 4; | |
| 6813 | } | |
| 6814 | ||
| 6815 | static bfd_byte * | |
| 6816 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6817 | { | |
| 6818 | p = restfpr (abfd, p, r); | |
| 6819 | bfd_put_32 (abfd, BLR, p); | |
| 6820 | return p + 4; | |
| 6821 | } | |
| 6822 | ||
| 6823 | static bfd_byte * | |
| 6824 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6825 | { | |
| 6826 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6827 | p = p + 4; | |
| 6828 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6829 | return p + 4; | |
| 6830 | } | |
| 6831 | ||
| 6832 | static bfd_byte * | |
| 6833 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6834 | { | |
| 6835 | p = savevr (abfd, p, r); | |
| 6836 | bfd_put_32 (abfd, BLR, p); | |
| 6837 | return p + 4; | |
| 6838 | } | |
| 6839 | ||
| 6840 | static bfd_byte * | |
| 6841 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6842 | { | |
| 6843 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6844 | p = p + 4; | |
| 6845 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6846 | return p + 4; | |
| 6847 | } | |
| 6848 | ||
| 6849 | static bfd_byte * | |
| 6850 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6851 | { | |
| 6852 | p = restvr (abfd, p, r); | |
| 6853 | bfd_put_32 (abfd, BLR, p); | |
| 6854 | return p + 4; | |
| 6855 | } | |
| 6856 | ||
| e86ce104 AM |
6857 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6858 | information on function code symbol entries to their corresponding | |
| 6859 | function descriptor symbol entries. */ | |
| deb0e272 | 6860 | |
| b34976b6 | 6861 | static bfd_boolean |
| 4ce794b7 | 6862 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6863 | { |
| e86ce104 | 6864 | struct bfd_link_info *info; |
| 65f38f15 | 6865 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6866 | struct ppc_link_hash_entry *fh; |
| 6867 | struct ppc_link_hash_entry *fdh; | |
| 6868 | bfd_boolean force_local; | |
| 5bd4f169 | 6869 | |
| 50bc7936 AM |
6870 | fh = (struct ppc_link_hash_entry *) h; |
| 6871 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6872 | return TRUE; |
| e86ce104 | 6873 | |
| 8c5b4e52 AM |
6874 | if (!fh->is_func) |
| 6875 | return TRUE; | |
| 6876 | ||
| 6877 | if (fh->elf.root.root.string[0] != '.' | |
| 6878 | || fh->elf.root.root.string[1] == '\0') | |
| 6879 | return TRUE; | |
| 6880 | ||
| 4ce794b7 | 6881 | info = inf; |
| 65f38f15 | 6882 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6883 | if (htab == NULL) |
| 6884 | return FALSE; | |
| 5bd4f169 | 6885 | |
| 8c5b4e52 AM |
6886 | /* Find the corresponding function descriptor symbol. */ |
| 6887 | fdh = lookup_fdh (fh, htab); | |
| 6888 | ||
| c09bdfe5 AM |
6889 | /* Resolve undefined references to dot-symbols as the value |
| 6890 | in the function descriptor, if we have one in a regular object. | |
| 6891 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6892 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
6893 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 6894 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 6895 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 6896 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
6897 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 6898 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6899 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6900 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6901 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6902 | { |
| b31867b6 | 6903 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6904 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6905 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6906 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6907 | } |
| 6908 | ||
| 8c5b4e52 AM |
6909 | if (!fh->elf.dynamic) |
| 6910 | { | |
| 6911 | struct plt_entry *ent; | |
| 5bd4f169 | 6912 | |
| 8c5b4e52 AM |
6913 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 6914 | if (ent->plt.refcount > 0) | |
| 6915 | break; | |
| 6916 | if (ent == NULL) | |
| 6917 | return TRUE; | |
| 6918 | } | |
| 5bd4f169 | 6919 | |
| 8c5b4e52 | 6920 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 6921 | if (fdh == NULL |
| 0e1862bb | 6922 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6923 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6924 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6925 | { | |
| 908b32fc | 6926 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6927 | if (fdh == NULL) |
| 6928 | return FALSE; | |
| 50bc7936 | 6929 | } |
| 648cca2c | 6930 | |
| 8c5b4e52 | 6931 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
6932 | if (fdh != NULL |
| 6933 | && fdh->fake | |
| 8c5b4e52 AM |
6934 | && (fh->elf.root.type == bfd_link_hash_defined |
| 6935 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 6936 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 6937 | |
| 8c5b4e52 AM |
6938 | /* Transfer dynamic linking information to the function descriptor. */ |
| 6939 | if (fdh != NULL) | |
| 6940 | { | |
| f5385ebf AM |
6941 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6942 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6943 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6944 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
6945 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 6946 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 6947 | || fh->elf.type == STT_FUNC | |
| 6948 | || fh->elf.type == STT_GNU_IFUNC); | |
| 6949 | move_plt_plist (fh, fdh); | |
| 6950 | ||
| 6951 | if (!fdh->elf.forced_local | |
| 6952 | && fh->elf.dynindx != -1) | |
| 6953 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 6954 | return FALSE; | |
| e86ce104 AM |
6955 | } |
| 6956 | ||
| 50bc7936 AM |
6957 | /* Now that the info is on the function descriptor, clear the |
| 6958 | function code sym info. Any function code syms for which we | |
| 6959 | don't have a definition in a regular file, we force local. | |
| 6960 | This prevents a shared library from exporting syms that have | |
| 6961 | been imported from another library. Function code syms that | |
| 6962 | are really in the library we must leave global to prevent the | |
| 6963 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6964 | force_local = (!fh->elf.def_regular |
| 6965 | || fdh == NULL | |
| 6966 | || !fdh->elf.def_regular | |
| 6967 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6968 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6969 | ||
| b34976b6 | 6970 | return TRUE; |
| e86ce104 | 6971 | } |
| 40b8271b | 6972 | |
| a4b6fadd AM |
6973 | static const struct sfpr_def_parms save_res_funcs[] = |
| 6974 | { | |
| 6975 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6976 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6977 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6978 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6979 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6980 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6981 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6982 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6983 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6984 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6985 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6986 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6987 | }; | |
| 6988 | ||
| e86ce104 | 6989 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6990 | this hook to a) provide some gcc support functions, and b) transfer |
| 6991 | dynamic linking information gathered so far on function code symbol | |
| 6992 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6993 | |
| b34976b6 | 6994 | static bfd_boolean |
| 4ce794b7 AM |
6995 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 6996 | struct bfd_link_info *info) | |
| e86ce104 AM |
6997 | { |
| 6998 | struct ppc_link_hash_table *htab; | |
| 6999 | ||
| 7000 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7001 | if (htab == NULL) |
| 7002 | return FALSE; | |
| 7003 | ||
| b32547cd AM |
7004 | /* Provide any missing _save* and _rest* functions. */ |
| 7005 | if (htab->sfpr != NULL) | |
| 7006 | { | |
| 7007 | unsigned int i; | |
| 7008 | ||
| 7009 | htab->sfpr->size = 0; | |
| 7010 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7011 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7012 | return FALSE; | |
| 7013 | if (htab->sfpr->size == 0) | |
| 7014 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7015 | } | |
| 7016 | ||
| 7017 | if (bfd_link_relocatable (info)) | |
| 7018 | return TRUE; | |
| 7019 | ||
| 7020 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7021 | { |
| 7022 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7023 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7024 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7025 | if (!htab->elf.hgot->def_regular |
| 7026 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7027 | { | |
| 7028 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7029 | htab->elf.hgot->root.u.def.value = 0; | |
| 7030 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7031 | htab->elf.hgot->def_regular = 1; | |
| 7032 | htab->elf.hgot->root.linker_def = 1; | |
| 7033 | } | |
| dba6fa9b | 7034 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7035 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7036 | | STV_HIDDEN); | |
| 7037 | } | |
| c66bb0ee | 7038 | |
| 8c5b4e52 AM |
7039 | if (htab->need_func_desc_adj) |
| 7040 | { | |
| 7041 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7042 | htab->need_func_desc_adj = 0; | |
| 7043 | } | |
| 805fc799 | 7044 | |
| b34976b6 | 7045 | return TRUE; |
| e86ce104 AM |
7046 | } |
| 7047 | ||
| 98bbb1b8 | 7048 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| a345bc8d | 7049 | |
| 98bbb1b8 | 7050 | static asection * |
| a345bc8d AM |
7051 | readonly_dynrelocs (struct elf_link_hash_entry *h) |
| 7052 | { | |
| 7053 | struct ppc_link_hash_entry *eh; | |
| 7054 | struct elf_dyn_relocs *p; | |
| 7055 | ||
| 7056 | eh = (struct ppc_link_hash_entry *) h; | |
| 7057 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7058 | { | |
| 7059 | asection *s = p->sec->output_section; | |
| 7060 | ||
| 7061 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 98bbb1b8 | 7062 | return p->sec; |
| a345bc8d | 7063 | } |
| 98bbb1b8 | 7064 | return NULL; |
| a345bc8d AM |
7065 | } |
| 7066 | ||
| d311bc8b | 7067 | /* Return true if we have dynamic relocs against H or any of its weak |
| ab2477e1 AM |
7068 | aliases, that apply to read-only sections. Cannot be used after |
| 7069 | size_dynamic_sections. */ | |
| d311bc8b AM |
7070 | |
| 7071 | static bfd_boolean | |
| 7072 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7073 | { | |
| 7074 | struct ppc_link_hash_entry *eh; | |
| 7075 | ||
| 7076 | eh = (struct ppc_link_hash_entry *) h; | |
| 7077 | do | |
| 7078 | { | |
| 7079 | if (readonly_dynrelocs (&eh->elf)) | |
| 7080 | return TRUE; | |
| ab2477e1 | 7081 | eh = (struct ppc_link_hash_entry *) eh->elf.u.alias; |
| d311bc8b AM |
7082 | } while (eh != NULL && &eh->elf != h); |
| 7083 | ||
| 7084 | return FALSE; | |
| 7085 | } | |
| 8a2058b5 | 7086 | |
| 8a9e8e72 AM |
7087 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7088 | ||
| 7089 | static bfd_boolean | |
| 7090 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7091 | { | |
| 7092 | struct elf_dyn_relocs *p; | |
| 7093 | ||
| 7094 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7095 | if (p->pc_count != 0) | |
| 7096 | return TRUE; | |
| 7097 | return FALSE; | |
| 7098 | } | |
| 7099 | ||
| 8a2058b5 AM |
7100 | /* Return true if a global entry stub will be created for H. Valid |
| 7101 | for ELFv2 before plt entries have been allocated. */ | |
| 7102 | ||
| 7103 | static bfd_boolean | |
| 7104 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7105 | { | |
| 7106 | struct plt_entry *pent; | |
| 7107 | ||
| 7108 | if (!h->pointer_equality_needed | |
| 7109 | || h->def_regular) | |
| 7110 | return FALSE; | |
| 7111 | ||
| 7112 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7113 | if (pent->plt.refcount > 0 | |
| 7114 | && pent->addend == 0) | |
| 7115 | return TRUE; | |
| 7116 | ||
| 7117 | return FALSE; | |
| 7118 | } | |
| 7119 | ||
| e86ce104 AM |
7120 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7121 | regular object. The current definition is in some section of the | |
| 7122 | dynamic object, but we're not including those sections. We have to | |
| 7123 | change the definition to something the rest of the link can | |
| 7124 | understand. */ | |
| 7125 | ||
| b34976b6 | 7126 | static bfd_boolean |
| 4ce794b7 AM |
7127 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7128 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7129 | { |
| 7130 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7131 | asection *s, *srel; |
| e86ce104 AM |
7132 | |
| 7133 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7134 | if (htab == NULL) |
| 7135 | return FALSE; | |
| e86ce104 AM |
7136 | |
| 7137 | /* Deal with function syms. */ | |
| 7138 | if (h->type == STT_FUNC | |
| e054468f | 7139 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7140 | || h->needs_plt) |
| e86ce104 | 7141 | { |
| 529fe20e AM |
7142 | bfd_boolean local = (((struct ppc_link_hash_entry *) h)->save_res |
| 7143 | || SYMBOL_CALLS_LOCAL (info, h) | |
| 7144 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 7145 | /* Discard dyn_relocs when non-pic if we've decided that a | |
| 7146 | function symbol is local and not an ifunc. We keep dynamic | |
| 7147 | relocs for ifuncs when local rather than always emitting a | |
| 7148 | plt call stub for them and defining the symbol on the call | |
| 7149 | stub. We can't do that for ELFv1 anyway (a function symbol | |
| 7150 | is defined on a descriptor, not code) and it can be faster at | |
| 7151 | run-time due to not needing to bounce through a stub. The | |
| 7152 | dyn_relocs for ifuncs will be applied even in a static | |
| 7153 | executable. */ | |
| 7154 | if (!bfd_link_pic (info) | |
| 7155 | && h->type != STT_GNU_IFUNC | |
| 7156 | && local) | |
| 7157 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 7158 | ||
| e86ce104 AM |
7159 | /* Clear procedure linkage table information for any symbol that |
| 7160 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7161 | struct plt_entry *ent; |
| 7162 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7163 | if (ent->plt.refcount > 0) | |
| 7164 | break; | |
| 8387904d | 7165 | if (ent == NULL |
| 529fe20e | 7166 | || (h->type != STT_GNU_IFUNC && local)) |
| 40b8271b | 7167 | { |
| 411e1bfb | 7168 | h->plt.plist = NULL; |
| f5385ebf | 7169 | h->needs_plt = 0; |
| d1eca1e4 | 7170 | h->pointer_equality_needed = 0; |
| 40b8271b | 7171 | } |
| 8a2058b5 | 7172 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7173 | { |
| d1eca1e4 AM |
7174 | /* Taking a function's address in a read/write section |
| 7175 | doesn't require us to define the function symbol in the | |
| 7176 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7177 | be used instead. The reason we prefer a few more dynamic |
| 7178 | relocs is that calling via a global entry stub costs a | |
| 7179 | few more instructions, and pointer_equality_needed causes | |
| 7180 | extra work in ld.so when resolving these symbols. */ | |
| 529fe20e | 7181 | if (global_entry_stub (h)) |
| d1eca1e4 | 7182 | { |
| ab2477e1 | 7183 | if (!readonly_dynrelocs (h)) |
| 529fe20e AM |
7184 | { |
| 7185 | h->pointer_equality_needed = 0; | |
| 7186 | /* If we haven't seen a branch reloc then we don't need | |
| 7187 | a plt entry. */ | |
| 7188 | if (!h->needs_plt) | |
| 7189 | h->plt.plist = NULL; | |
| 7190 | } | |
| 7191 | else if (!bfd_link_pic (info)) | |
| 7192 | /* We are going to be defining the function symbol on the | |
| 7193 | plt stub, so no dyn_relocs needed when non-pic. */ | |
| 7194 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| d1eca1e4 AM |
7195 | } |
| 7196 | ||
| 3988aed5 AM |
7197 | /* ELFv2 function symbols can't have copy relocs. */ |
| 7198 | return TRUE; | |
| 7199 | } | |
| 7200 | else if (!h->needs_plt | |
| ab2477e1 | 7201 | && !readonly_dynrelocs (h)) |
| 3988aed5 AM |
7202 | { |
| 7203 | /* If we haven't seen a branch reloc then we don't need a | |
| 7204 | plt entry. */ | |
| 7205 | h->plt.plist = NULL; | |
| 7206 | h->pointer_equality_needed = 0; | |
| a345bc8d AM |
7207 | return TRUE; |
| 7208 | } | |
| 5bd4f169 | 7209 | } |
| bbd7ec4a | 7210 | else |
| 411e1bfb | 7211 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7212 | |
| 7213 | /* If this is a weak symbol, and there is a real definition, the | |
| 7214 | processor independent code will have arranged for us to see the | |
| 7215 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7216 | if (h->is_weakalias) |
| 5bd4f169 | 7217 | { |
| 60d67dc8 AM |
7218 | struct elf_link_hash_entry *def = weakdef (h); |
| 7219 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7220 | h->root.u.def.section = def->root.u.def.section; | |
| 7221 | h->root.u.def.value = def->root.u.def.value; | |
| 4a7e5234 AM |
7222 | if (def->root.u.def.section == htab->elf.sdynbss |
| 7223 | || def->root.u.def.section == htab->elf.sdynrelro) | |
| 7224 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| b34976b6 | 7225 | return TRUE; |
| 5bd4f169 AM |
7226 | } |
| 7227 | ||
| 5bd4f169 AM |
7228 | /* If we are creating a shared library, we must presume that the |
| 7229 | only references to the symbol are via the global offset table. | |
| 7230 | For such cases we need not do anything here; the relocations will | |
| 7231 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7232 | if (bfd_link_pic (info)) |
| b34976b6 | 7233 | return TRUE; |
| 5bd4f169 | 7234 | |
| 65f38f15 AM |
7235 | /* If there are no references to this symbol that do not use the |
| 7236 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7237 | if (!h->non_got_ref) |
| b34976b6 | 7238 | return TRUE; |
| 65f38f15 | 7239 | |
| b186458a | 7240 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7241 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7242 | |
| d93d1c80 AM |
7243 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7244 | || info->nocopyreloc | |
| a127494f | 7245 | |
| dce2246a | 7246 | /* If we don't find any dynamic relocs in read-only sections, then |
| d93d1c80 | 7247 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| d311bc8b | 7248 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7249 | |
| d93d1c80 AM |
7250 | /* Protected variables do not work with .dynbss. The copy in |
| 7251 | .dynbss won't be used by the shared library with the protected | |
| 7252 | definition for the variable. Text relocations are preferable | |
| 7253 | to an incorrect program. */ | |
| 7254 | || h->protected_def) | |
| 529fe20e | 7255 | return TRUE; |
| a127494f | 7256 | |
| 5d35169e | 7257 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7258 | { |
| 7259 | /* We should never get here, but unfortunately there are versions | |
| 7260 | of gcc out there that improperly (for this ABI) put initialized | |
| 7261 | function pointers, vtable refs and suchlike in read-only | |
| 7262 | sections. Allow them to proceed, but warn that this might | |
| 7263 | break at runtime. */ | |
| 25f53a85 | 7264 | info->callbacks->einfo |
| bc30df16 | 7265 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7266 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7267 | h->root.root.string); |
| 7268 | } | |
| 5d35169e AM |
7269 | |
| 7270 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7271 | is not a function. */ | |
| 7272 | ||
| 5bd4f169 AM |
7273 | /* We must allocate the symbol in our .dynbss section, which will |
| 7274 | become part of the .bss section of the executable. There will be | |
| 7275 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7276 | object will contain position independent code, so all references | |
| 7277 | from the dynamic object to this symbol will go through the global | |
| 7278 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7279 | determine the address it must put in the global offset table, so | |
| 7280 | both the dynamic object and the regular object will refer to the | |
| 7281 | same memory location for the variable. */ | |
| 5474d94f AM |
7282 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7283 | { | |
| 7284 | s = htab->elf.sdynrelro; | |
| 7285 | srel = htab->elf.sreldynrelro; | |
| 7286 | } | |
| 7287 | else | |
| 7288 | { | |
| 7289 | s = htab->elf.sdynbss; | |
| 7290 | srel = htab->elf.srelbss; | |
| 7291 | } | |
| 1d7e9d18 | 7292 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7293 | { |
| 4a7e5234 AM |
7294 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic |
| 7295 | linker to copy the initial value out of the dynamic object | |
| 7296 | and into the runtime process image. */ | |
| 5474d94f | 7297 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7298 | h->needs_copy = 1; |
| 5bd4f169 AM |
7299 | } |
| 7300 | ||
| 529fe20e AM |
7301 | /* We no longer want dyn_relocs. */ |
| 7302 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 6cabe1ea | 7303 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7304 | } |
| 7305 | ||
| e86ce104 AM |
7306 | /* If given a function descriptor symbol, hide both the function code |
| 7307 | sym and the descriptor. */ | |
| 7308 | static void | |
| 4ce794b7 AM |
7309 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7310 | struct elf_link_hash_entry *h, | |
| 7311 | bfd_boolean force_local) | |
| e86ce104 | 7312 | { |
| 34814b9f | 7313 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7314 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7315 | ||
| 34814b9f AM |
7316 | eh = (struct ppc_link_hash_entry *) h; |
| 7317 | if (eh->is_func_descriptor) | |
| e86ce104 | 7318 | { |
| 34814b9f | 7319 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7320 | |
| 721956f4 | 7321 | if (fh == NULL) |
| d1329ca3 AM |
7322 | { |
| 7323 | const char *p, *q; | |
| b8ac2841 | 7324 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7325 | char save; |
| 7326 | ||
| 7327 | /* We aren't supposed to use alloca in BFD because on | |
| 7328 | systems which do not have alloca the version in libiberty | |
| 7329 | calls xmalloc, which might cause the program to crash | |
| 7330 | when it runs out of memory. This function doesn't have a | |
| 7331 | return status, so there's no way to gracefully return an | |
| 7332 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7333 | accessed; It's either a string in an ELF string table, |
| 7334 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7335 | |
| 34814b9f | 7336 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7337 | save = *p; |
| 7338 | *(char *) p = '.'; | |
| 34814b9f | 7339 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7340 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7341 | *(char *) p = save; |
| 7342 | ||
| 7343 | /* Unfortunately, if it so happens that the string we were | |
| 7344 | looking for was allocated immediately before this string, | |
| 7345 | then we overwrote the string terminator. That's the only | |
| 7346 | reason the lookup should fail. */ | |
| 7347 | if (fh == NULL) | |
| 7348 | { | |
| 34814b9f AM |
7349 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7350 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7351 | --q, --p; |
| 34814b9f AM |
7352 | if (q < eh->elf.root.root.string && *p == '.') |
| 7353 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7354 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7355 | } |
| 7356 | if (fh != NULL) | |
| 7357 | { | |
| 34814b9f AM |
7358 | eh->oh = fh; |
| 7359 | fh->oh = eh; | |
| d1329ca3 AM |
7360 | } |
| 7361 | } | |
| e86ce104 | 7362 | if (fh != NULL) |
| 34814b9f | 7363 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7364 | } |
| 7365 | } | |
| 7366 | ||
| 411e1bfb | 7367 | static bfd_boolean |
| 8843416a AM |
7368 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7369 | Elf_Internal_Sym **symp, | |
| 7370 | asection **symsecp, | |
| f961d9dd | 7371 | unsigned char **tls_maskp, |
| 8843416a AM |
7372 | Elf_Internal_Sym **locsymsp, |
| 7373 | unsigned long r_symndx, | |
| 7374 | bfd *ibfd) | |
| 411e1bfb | 7375 | { |
| 0ffa91dd | 7376 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7377 | |
| 7378 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7379 | { | |
| 7380 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7381 | struct elf_link_hash_entry *h; | |
| 7382 | ||
| 7383 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7384 | h = elf_follow_link (h); |
| 411e1bfb AM |
7385 | |
| 7386 | if (hp != NULL) | |
| 7387 | *hp = h; | |
| 7388 | ||
| 7389 | if (symp != NULL) | |
| 7390 | *symp = NULL; | |
| 7391 | ||
| 7392 | if (symsecp != NULL) | |
| 7393 | { | |
| 7394 | asection *symsec = NULL; | |
| 7395 | if (h->root.type == bfd_link_hash_defined | |
| 7396 | || h->root.type == bfd_link_hash_defweak) | |
| 7397 | symsec = h->root.u.def.section; | |
| 7398 | *symsecp = symsec; | |
| 7399 | } | |
| 7400 | ||
| e7b938ca | 7401 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7402 | { |
| 7403 | struct ppc_link_hash_entry *eh; | |
| 7404 | ||
| 7405 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7406 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7407 | } |
| 7408 | } | |
| 7409 | else | |
| 7410 | { | |
| 7411 | Elf_Internal_Sym *sym; | |
| 7412 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7413 | ||
| 7414 | if (locsyms == NULL) | |
| 7415 | { | |
| 7416 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7417 | if (locsyms == NULL) | |
| 7418 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7419 | symtab_hdr->sh_info, | |
| 7420 | 0, NULL, NULL, NULL); | |
| 7421 | if (locsyms == NULL) | |
| 7422 | return FALSE; | |
| 7423 | *locsymsp = locsyms; | |
| 7424 | } | |
| 7425 | sym = locsyms + r_symndx; | |
| 7426 | ||
| 7427 | if (hp != NULL) | |
| 7428 | *hp = NULL; | |
| 7429 | ||
| 7430 | if (symp != NULL) | |
| 7431 | *symp = sym; | |
| 7432 | ||
| 7433 | if (symsecp != NULL) | |
| cb33740c | 7434 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7435 | |
| e7b938ca | 7436 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7437 | { |
| 7438 | struct got_entry **lgot_ents; | |
| f961d9dd | 7439 | unsigned char *tls_mask; |
| 411e1bfb | 7440 | |
| e7b938ca | 7441 | tls_mask = NULL; |
| 411e1bfb AM |
7442 | lgot_ents = elf_local_got_ents (ibfd); |
| 7443 | if (lgot_ents != NULL) | |
| 7444 | { | |
| e054468f AM |
7445 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7446 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7447 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7448 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7449 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7450 | } |
| e7b938ca | 7451 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7452 | } |
| 7453 | } | |
| 7454 | return TRUE; | |
| 7455 | } | |
| 7456 | ||
| e7b938ca | 7457 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7458 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7459 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7460 | |
| 7461 | static int | |
| f961d9dd | 7462 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7463 | unsigned long *toc_symndx, |
| 7464 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7465 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7466 | const Elf_Internal_Rela *rel, |
| 7467 | bfd *ibfd) | |
| 411e1bfb AM |
7468 | { |
| 7469 | unsigned long r_symndx; | |
| 0d4792f7 | 7470 | int next_r; |
| 411e1bfb AM |
7471 | struct elf_link_hash_entry *h; |
| 7472 | Elf_Internal_Sym *sym; | |
| 7473 | asection *sec; | |
| 7474 | bfd_vma off; | |
| 7475 | ||
| 7476 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7477 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7478 | return 0; |
| 411e1bfb | 7479 | |
| e7b938ca | 7480 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7481 | || sec == NULL |
| 6bee8834 | 7482 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7483 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7484 | return 1; |
| 411e1bfb AM |
7485 | |
| 7486 | /* Look inside a TOC section too. */ | |
| 7487 | if (h != NULL) | |
| 7488 | { | |
| 7489 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7490 | off = h->root.u.def.value; | |
| 7491 | } | |
| 7492 | else | |
| 7493 | off = sym->st_value; | |
| 7494 | off += rel->r_addend; | |
| 7495 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7496 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7497 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7498 | if (toc_symndx != NULL) |
| 7499 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7500 | if (toc_addend != NULL) |
| 7501 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7502 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7503 | return 0; | |
| 854b41e7 | 7504 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7505 | && (next_r == -1 || next_r == -2)) |
| 7506 | return 1 - next_r; | |
| 951fd09b | 7507 | return 1; |
| 411e1bfb AM |
7508 | } |
| 7509 | ||
| 3b421ab3 AM |
7510 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7511 | ||
| 7512 | static struct tocsave_entry * | |
| 7513 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7514 | enum insert_option insert, | |
| 7515 | Elf_Internal_Sym **local_syms, | |
| 7516 | const Elf_Internal_Rela *irela, | |
| 7517 | bfd *ibfd) | |
| 7518 | { | |
| 7519 | unsigned long r_indx; | |
| 7520 | struct elf_link_hash_entry *h; | |
| 7521 | Elf_Internal_Sym *sym; | |
| 7522 | struct tocsave_entry ent, *p; | |
| 7523 | hashval_t hash; | |
| 7524 | struct tocsave_entry **slot; | |
| 7525 | ||
| 7526 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7527 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7528 | return NULL; | |
| 7529 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7530 | { | |
| 4eca0228 | 7531 | _bfd_error_handler |
| 871b3ab2 | 7532 | (_("%pB: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7533 | return NULL; |
| 7534 | } | |
| 7535 | ||
| 7536 | if (h != NULL) | |
| 7537 | ent.offset = h->root.u.def.value; | |
| 7538 | else | |
| 7539 | ent.offset = sym->st_value; | |
| 7540 | ent.offset += irela->r_addend; | |
| 7541 | ||
| 7542 | hash = tocsave_htab_hash (&ent); | |
| 7543 | slot = ((struct tocsave_entry **) | |
| 7544 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7545 | if (slot == NULL) | |
| 7546 | return NULL; | |
| 7547 | ||
| 7548 | if (*slot == NULL) | |
| 7549 | { | |
| 7550 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7551 | if (p == NULL) | |
| 7552 | return NULL; | |
| 7553 | *p = ent; | |
| 7554 | *slot = p; | |
| 7555 | } | |
| 7556 | return *slot; | |
| 7557 | } | |
| 7558 | ||
| 754021d0 | 7559 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7560 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7561 | |
| 7562 | static bfd_boolean | |
| 7563 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7564 | { | |
| 7565 | struct ppc_link_hash_entry *eh; | |
| 7566 | asection *sym_sec; | |
| 74f0fb50 | 7567 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7568 | |
| 7569 | if (h->root.type == bfd_link_hash_indirect) | |
| 7570 | return TRUE; | |
| 7571 | ||
| 754021d0 AM |
7572 | if (h->root.type != bfd_link_hash_defined |
| 7573 | && h->root.type != bfd_link_hash_defweak) | |
| 7574 | return TRUE; | |
| 7575 | ||
| 7576 | eh = (struct ppc_link_hash_entry *) h; | |
| 7577 | if (eh->adjust_done) | |
| 7578 | return TRUE; | |
| 7579 | ||
| 7580 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7581 | opd = get_opd_info (sym_sec); |
| 7582 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7583 | { |
| 51aecdc5 | 7584 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7585 | if (adjust == -1) |
| 7586 | { | |
| 7587 | /* This entry has been deleted. */ | |
| b3fac117 | 7588 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7589 | if (dsec == NULL) |
| 7590 | { | |
| 7591 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7592 | if (discarded_section (dsec)) |
| 81688140 | 7593 | { |
| b3fac117 | 7594 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7595 | break; |
| 7596 | } | |
| 7597 | } | |
| 4025353c | 7598 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7599 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7600 | } |
| 7601 | else | |
| 7602 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7603 | eh->adjust_done = 1; |
| 7604 | } | |
| 7605 | return TRUE; | |
| 7606 | } | |
| 7607 | ||
| 8c1d1bb8 | 7608 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7609 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7610 | have already been determined. */ |
| 7611 | ||
| 7612 | static bfd_boolean | |
| 7613 | dec_dynrel_count (bfd_vma r_info, | |
| 7614 | asection *sec, | |
| 7615 | struct bfd_link_info *info, | |
| 7616 | Elf_Internal_Sym **local_syms, | |
| 7617 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7618 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7619 | { |
| 7620 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7621 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7622 | |
| 7623 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7624 | should be kept in sync with the code in check_relocs. */ | |
| 7625 | r_type = ELF64_R_TYPE (r_info); | |
| 7626 | switch (r_type) | |
| 7627 | { | |
| 7628 | default: | |
| 7629 | return TRUE; | |
| 7630 | ||
| 7631 | case R_PPC64_TPREL16: | |
| 7632 | case R_PPC64_TPREL16_LO: | |
| 7633 | case R_PPC64_TPREL16_HI: | |
| 7634 | case R_PPC64_TPREL16_HA: | |
| 7635 | case R_PPC64_TPREL16_DS: | |
| 7636 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7637 | case R_PPC64_TPREL16_HIGH: |
| 7638 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7639 | case R_PPC64_TPREL16_HIGHER: |
| 7640 | case R_PPC64_TPREL16_HIGHERA: | |
| 7641 | case R_PPC64_TPREL16_HIGHEST: | |
| 7642 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7643 | case R_PPC64_TPREL64: |
| 7644 | case R_PPC64_DTPMOD64: | |
| 7645 | case R_PPC64_DTPREL64: | |
| 7646 | case R_PPC64_ADDR64: | |
| 7647 | case R_PPC64_REL30: | |
| 7648 | case R_PPC64_REL32: | |
| 7649 | case R_PPC64_REL64: | |
| 7650 | case R_PPC64_ADDR14: | |
| 7651 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7652 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7653 | case R_PPC64_ADDR16: | |
| 7654 | case R_PPC64_ADDR16_DS: | |
| 7655 | case R_PPC64_ADDR16_HA: | |
| 7656 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7657 | case R_PPC64_ADDR16_HIGH: |
| 7658 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7659 | case R_PPC64_ADDR16_HIGHER: |
| 7660 | case R_PPC64_ADDR16_HIGHERA: | |
| 7661 | case R_PPC64_ADDR16_HIGHEST: | |
| 7662 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7663 | case R_PPC64_ADDR16_LO: | |
| 7664 | case R_PPC64_ADDR16_LO_DS: | |
| 7665 | case R_PPC64_ADDR24: | |
| 7666 | case R_PPC64_ADDR32: | |
| 7667 | case R_PPC64_UADDR16: | |
| 7668 | case R_PPC64_UADDR32: | |
| 7669 | case R_PPC64_UADDR64: | |
| 7670 | case R_PPC64_TOC: | |
| 7671 | break; | |
| 7672 | } | |
| 7673 | ||
| 7674 | if (local_syms != NULL) | |
| 7675 | { | |
| 7676 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7677 | bfd *ibfd = sec->owner; |
| 7678 | ||
| 7679 | r_symndx = ELF64_R_SYM (r_info); | |
| 7680 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7681 | return FALSE; | |
| 7682 | } | |
| 7683 | ||
| 0e1862bb | 7684 | if ((bfd_link_pic (info) |
| 1d483afe | 7685 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7686 | || (h != NULL |
| 198f1157 | 7687 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7688 | || h->root.type == bfd_link_hash_defweak |
| 7689 | || !h->def_regular)))) | |
| 7690 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7691 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7692 | && h != NULL |
| 7693 | && (h->root.type == bfd_link_hash_defweak | |
| 7694 | || !h->def_regular))) | |
| 7695 | ; | |
| 7696 | else | |
| 7697 | return TRUE; | |
| 7698 | ||
| 7699 | if (h != NULL) | |
| 6edfbbad | 7700 | { |
| 19e08130 AM |
7701 | struct elf_dyn_relocs *p; |
| 7702 | struct elf_dyn_relocs **pp; | |
| 7703 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7704 | ||
| 7705 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7706 | with local syms for a given section. Also, symbol flags are | |
| 7707 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7708 | report a dynreloc miscount. */ | |
| 7709 | if (*pp == NULL && info->gc_sections) | |
| 7710 | return TRUE; | |
| 7711 | ||
| 7712 | while ((p = *pp) != NULL) | |
| 60124e18 | 7713 | { |
| 19e08130 AM |
7714 | if (p->sec == sec) |
| 7715 | { | |
| 7716 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7717 | p->pc_count -= 1; | |
| 7718 | p->count -= 1; | |
| 7719 | if (p->count == 0) | |
| 7720 | *pp = p->next; | |
| 7721 | return TRUE; | |
| 7722 | } | |
| 7723 | pp = &p->next; | |
| 60124e18 | 7724 | } |
| 6edfbbad | 7725 | } |
| 19e08130 AM |
7726 | else |
| 7727 | { | |
| 7728 | struct ppc_dyn_relocs *p; | |
| 7729 | struct ppc_dyn_relocs **pp; | |
| 7730 | void *vpp; | |
| 7731 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7732 | |
| 19e08130 AM |
7733 | if (local_syms == NULL) |
| 7734 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7735 | if (sym_sec == NULL) | |
| 7736 | sym_sec = sec; | |
| c57da1a7 | 7737 | |
| 19e08130 AM |
7738 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7739 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7740 | ||
| 7741 | if (*pp == NULL && info->gc_sections) | |
| 7742 | return TRUE; | |
| 7743 | ||
| 7744 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7745 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7746 | { |
| 19e08130 AM |
7747 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7748 | { | |
| 7749 | p->count -= 1; | |
| 7750 | if (p->count == 0) | |
| 7751 | *pp = p->next; | |
| 7752 | return TRUE; | |
| 7753 | } | |
| 7754 | pp = &p->next; | |
| 8c1d1bb8 | 7755 | } |
| 8c1d1bb8 AM |
7756 | } |
| 7757 | ||
| 695344c0 | 7758 | /* xgettext:c-format */ |
| 871b3ab2 | 7759 | info->callbacks->einfo (_("%P: dynreloc miscount for %pB, section %pA\n"), |
| 25f53a85 | 7760 | sec->owner, sec); |
| 8c1d1bb8 AM |
7761 | bfd_set_error (bfd_error_bad_value); |
| 7762 | return FALSE; | |
| 7763 | } | |
| 7764 | ||
| 754021d0 AM |
7765 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7766 | only remove those associated with functions in discarded link-once | |
| 7767 | sections, or weakly defined functions that have been overridden. It | |
| 7768 | would be possible to remove many more entries for statically linked | |
| 7769 | applications. */ | |
| 7770 | ||
| b34976b6 | 7771 | bfd_boolean |
| e7d1c40c | 7772 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7773 | { |
| 7774 | bfd *ibfd; | |
| 754021d0 | 7775 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7776 | asection *need_pad = NULL; |
| e7d1c40c AM |
7777 | struct ppc_link_hash_table *htab; |
| 7778 | ||
| 7779 | htab = ppc_hash_table (info); | |
| 7780 | if (htab == NULL) | |
| 7781 | return FALSE; | |
| 1e2f5b6e | 7782 | |
| c72f2fb2 | 7783 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7784 | { |
| 7785 | asection *sec; | |
| 7786 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7787 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7788 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7789 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7790 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7791 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7792 | |
| 854b41e7 AM |
7793 | if (!is_ppc64_elf (ibfd)) |
| 7794 | continue; | |
| 7795 | ||
| 1e2f5b6e | 7796 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7797 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7798 | continue; |
| 7799 | ||
| dbaa2011 | 7800 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7801 | continue; |
| 7802 | ||
| 1e2f5b6e AM |
7803 | if (sec->output_section == bfd_abs_section_ptr) |
| 7804 | continue; | |
| 7805 | ||
| 7806 | /* Look through the section relocs. */ | |
| 7807 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7808 | continue; | |
| 7809 | ||
| 6cdc0ccc | 7810 | local_syms = NULL; |
| 0ffa91dd | 7811 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7812 | |
| 7813 | /* Read the relocations. */ | |
| 4ce794b7 | 7814 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7815 | info->keep_memory); |
| 1e2f5b6e | 7816 | if (relstart == NULL) |
| b34976b6 | 7817 | return FALSE; |
| 1e2f5b6e AM |
7818 | |
| 7819 | /* First run through the relocs to check they are sane, and to | |
| 7820 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7821 | need_edit = FALSE; |
| 51aecdc5 | 7822 | broken = FALSE; |
| 3f764659 | 7823 | need_pad = sec; |
| 1e2f5b6e | 7824 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7825 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7826 | { |
| 04c9666a | 7827 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7828 | unsigned long r_symndx; |
| 7829 | asection *sym_sec; | |
| 7830 | struct elf_link_hash_entry *h; | |
| 7831 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7832 | bfd_vma offset; |
| 1e2f5b6e | 7833 | |
| 51aecdc5 | 7834 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7835 | only interested in the reloc pointing to a function entry |
| 7836 | point. */ | |
| 51aecdc5 AM |
7837 | offset = rel->r_offset; |
| 7838 | if (rel + 1 == relend | |
| 7839 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7840 | { |
| 7841 | /* If someone messes with .opd alignment then after a | |
| 7842 | "ld -r" we might have padding in the middle of .opd. | |
| 7843 | Also, there's nothing to prevent someone putting | |
| 7844 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7845 | optimization for them! */ |
| 3f764659 | 7846 | broken_opd: |
| 4eca0228 | 7847 | _bfd_error_handler |
| 871b3ab2 | 7848 | (_("%pB: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7849 | broken = TRUE; |
| 1e2f5b6e AM |
7850 | break; |
| 7851 | } | |
| 7852 | ||
| 50bc7936 AM |
7853 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7854 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7855 | { | |
| 4eca0228 | 7856 | _bfd_error_handler |
| 695344c0 | 7857 | /* xgettext:c-format */ |
| 871b3ab2 | 7858 | (_("%pB: unexpected reloc type %u in .opd section"), |
| d003868e | 7859 | ibfd, r_type); |
| 51aecdc5 | 7860 | broken = TRUE; |
| 50bc7936 AM |
7861 | break; |
| 7862 | } | |
| 7863 | ||
| 1e2f5b6e | 7864 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7865 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7866 | r_symndx, ibfd)) | |
| 50bc7936 | 7867 | goto error_ret; |
| 1e2f5b6e AM |
7868 | |
| 7869 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7870 | { | |
| 411e1bfb AM |
7871 | const char *sym_name; |
| 7872 | if (h != NULL) | |
| 7873 | sym_name = h->root.root.string; | |
| 7874 | else | |
| 26c61ae5 L |
7875 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7876 | sym_sec); | |
| 411e1bfb | 7877 | |
| 4eca0228 | 7878 | _bfd_error_handler |
| 695344c0 | 7879 | /* xgettext:c-format */ |
| 871b3ab2 | 7880 | (_("%pB: undefined sym `%s' in .opd section"), |
| d003868e | 7881 | ibfd, sym_name); |
| 51aecdc5 | 7882 | broken = TRUE; |
| 1e2f5b6e AM |
7883 | break; |
| 7884 | } | |
| 7885 | ||
| 51020317 AM |
7886 | /* opd entries are always for functions defined in the |
| 7887 | current input bfd. If the symbol isn't defined in the | |
| 7888 | input bfd, then we won't be using the function in this | |
| 7889 | bfd; It must be defined in a linkonce section in another | |
| 7890 | bfd, or is weak. It's also possible that we are | |
| 7891 | discarding the function due to a linker script /DISCARD/, | |
| 7892 | which we test for via the output_section. */ | |
| 7893 | if (sym_sec->owner != ibfd | |
| 7894 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7895 | need_edit = TRUE; |
| 1e2f5b6e | 7896 | |
| 50bc7936 | 7897 | rel += 2; |
| 51aecdc5 AM |
7898 | if (rel + 1 == relend |
| 7899 | || (rel + 2 < relend | |
| 7900 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7901 | ++rel; | |
| 7902 | ||
| 7903 | if (rel == relend) | |
| 3f764659 JJ |
7904 | { |
| 7905 | if (sec->size == offset + 24) | |
| 7906 | { | |
| 7907 | need_pad = NULL; | |
| 7908 | break; | |
| 7909 | } | |
| 51aecdc5 | 7910 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7911 | { |
| 7912 | cnt_16b++; | |
| 7913 | break; | |
| 7914 | } | |
| 7915 | goto broken_opd; | |
| 7916 | } | |
| 3f764659 JJ |
7917 | else if (rel + 1 < relend |
| 7918 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7919 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7920 | { | |
| 51aecdc5 AM |
7921 | if (rel[0].r_offset == offset + 16) |
| 7922 | cnt_16b++; | |
| 7923 | else if (rel[0].r_offset != offset + 24) | |
| 7924 | goto broken_opd; | |
| 3f764659 JJ |
7925 | } |
| 7926 | else | |
| 7927 | goto broken_opd; | |
| 1e2f5b6e AM |
7928 | } |
| 7929 | ||
| e7d1c40c | 7930 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7931 | |
| 51aecdc5 | 7932 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7933 | { |
| 7934 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7935 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7936 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7937 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7938 | bfd_size_type amt; |
| 7939 | ||
| 983bddc8 | 7940 | new_contents = NULL; |
| 51aecdc5 | 7941 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7942 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7943 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7944 | if (opd->adjust == NULL) |
| 7945 | return FALSE; | |
| 1e2f5b6e AM |
7946 | |
| 7947 | /* This seems a waste of time as input .opd sections are all | |
| 7948 | zeros as generated by gcc, but I suppose there's no reason | |
| 7949 | this will always be so. We might start putting something in | |
| 7950 | the third word of .opd entries. */ | |
| 7951 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7952 | { | |
| eea6121a AM |
7953 | bfd_byte *loc; |
| 7954 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7955 | { |
| eea6121a AM |
7956 | if (loc != NULL) |
| 7957 | free (loc); | |
| 50bc7936 | 7958 | error_ret: |
| 6cdc0ccc AM |
7959 | if (local_syms != NULL |
| 7960 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7961 | free (local_syms); | |
| 6cdc0ccc AM |
7962 | if (elf_section_data (sec)->relocs != relstart) |
| 7963 | free (relstart); | |
| b34976b6 | 7964 | return FALSE; |
| 6cdc0ccc | 7965 | } |
| 1e2f5b6e AM |
7966 | sec->contents = loc; |
| 7967 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7968 | } | |
| 7969 | ||
| 7970 | elf_section_data (sec)->relocs = relstart; | |
| 7971 | ||
| 3f764659 | 7972 | new_contents = sec->contents; |
| 3f764659 JJ |
7973 | if (add_aux_fields) |
| 7974 | { | |
| 7975 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7976 | if (new_contents == NULL) | |
| 7977 | return FALSE; | |
| 51aecdc5 | 7978 | need_pad = NULL; |
| 3f764659 | 7979 | } |
| b4f4e59f AM |
7980 | wptr = new_contents; |
| 7981 | rptr = sec->contents; | |
| 1e2f5b6e | 7982 | write_rel = relstart; |
| 51aecdc5 | 7983 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7984 | { |
| 50bc7936 AM |
7985 | unsigned long r_symndx; |
| 7986 | asection *sym_sec; | |
| 7987 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7988 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7989 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7990 | long opd_ent_size; |
| 7991 | Elf_Internal_Rela *next_rel; | |
| 7992 | bfd_boolean skip; | |
| 50bc7936 AM |
7993 | |
| 7994 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7995 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7996 | r_symndx, ibfd)) |
| 50bc7936 AM |
7997 | goto error_ret; |
| 7998 | ||
| 51aecdc5 AM |
7999 | next_rel = rel + 2; |
| 8000 | if (next_rel + 1 == relend | |
| 8001 | || (next_rel + 2 < relend | |
| 8002 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8003 | ++next_rel; | |
| 8004 | ||
| 8005 | /* See if the .opd entry is full 24 byte or | |
| 8006 | 16 byte (with fd_aux entry overlapped with next | |
| 8007 | fd_func). */ | |
| 8008 | opd_ent_size = 24; | |
| 8009 | if (next_rel == relend) | |
| 1e2f5b6e | 8010 | { |
| 51aecdc5 | 8011 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8012 | opd_ent_size = 16; |
| 51aecdc5 AM |
8013 | } |
| 8014 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8015 | opd_ent_size = 16; | |
| 3f764659 | 8016 | |
| 51aecdc5 AM |
8017 | if (h != NULL |
| 8018 | && h->root.root.string[0] == '.') | |
| 8019 | { | |
| 8c5b4e52 AM |
8020 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8021 | if (fdh != NULL) | |
| 8022 | { | |
| 8023 | fdh = ppc_follow_link (fdh); | |
| 8024 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8025 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8026 | fdh = NULL; | |
| 8027 | } | |
| 51aecdc5 | 8028 | } |
| 1e2f5b6e | 8029 | |
| 51aecdc5 AM |
8030 | skip = (sym_sec->owner != ibfd |
| 8031 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8032 | if (skip) | |
| 8033 | { | |
| 8034 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8035 | { |
| 51aecdc5 AM |
8036 | /* Arrange for the function descriptor sym |
| 8037 | to be dropped. */ | |
| 8038 | fdh->elf.root.u.def.value = 0; | |
| 8039 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8040 | } |
| 51aecdc5 | 8041 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8042 | |
| 0e1862bb | 8043 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8044 | rel = next_rel; |
| 8045 | else | |
| 8046 | while (1) | |
| 8047 | { | |
| 8048 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8049 | NULL, h, sym)) | |
| 8050 | goto error_ret; | |
| 754021d0 | 8051 | |
| 51aecdc5 AM |
8052 | if (++rel == next_rel) |
| 8053 | break; | |
| 1e2f5b6e | 8054 | |
| 51aecdc5 AM |
8055 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8056 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8057 | r_symndx, ibfd)) | |
| 8058 | goto error_ret; | |
| 8059 | } | |
| 50bc7936 AM |
8060 | } |
| 8061 | else | |
| 1e2f5b6e | 8062 | { |
| 51aecdc5 AM |
8063 | /* We'll be keeping this opd entry. */ |
| 8064 | long adjust; | |
| 8065 | ||
| 8066 | if (fdh != NULL) | |
| 8067 | { | |
| 8068 | /* Redefine the function descriptor symbol to | |
| 8069 | this location in the opd section. It is | |
| 8070 | necessary to update the value here rather | |
| 8071 | than using an array of adjustments as we do | |
| 8072 | for local symbols, because various places | |
| 8073 | in the generic ELF code use the value | |
| 8074 | stored in u.def.value. */ | |
| 8075 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8076 | fdh->adjust_done = 1; | |
| 8077 | } | |
| 8078 | ||
| 8079 | /* Local syms are a bit tricky. We could | |
| 8080 | tweak them as they can be cached, but | |
| 8081 | we'd need to look through the local syms | |
| 8082 | for the function descriptor sym which we | |
| 8083 | don't have at the moment. So keep an | |
| 8084 | array of adjustments. */ | |
| 8085 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8086 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8087 | ||
| 8088 | if (wptr != rptr) | |
| 8089 | memcpy (wptr, rptr, opd_ent_size); | |
| 8090 | wptr += opd_ent_size; | |
| 8091 | if (add_aux_fields && opd_ent_size == 16) | |
| 8092 | { | |
| 8093 | memset (wptr, '\0', 8); | |
| 8094 | wptr += 8; | |
| 8095 | } | |
| 8096 | ||
| 50bc7936 | 8097 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8098 | new opd entries. */ |
| 8099 | for ( ; rel != next_rel; ++rel) | |
| 8100 | { | |
| 8101 | rel->r_offset += adjust; | |
| 8102 | if (write_rel != rel) | |
| 8103 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8104 | ++write_rel; | |
| 8105 | } | |
| 1e2f5b6e | 8106 | } |
| 51aecdc5 AM |
8107 | |
| 8108 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8109 | } |
| 8110 | ||
| 3f764659 | 8111 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8112 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8113 | if (add_aux_fields) |
| 8114 | { | |
| 8115 | free (sec->contents); | |
| 8116 | sec->contents = new_contents; | |
| 8117 | } | |
| 8118 | ||
| 05bf9422 | 8119 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8120 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8121 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8122 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8123 | some_edited = TRUE; |
| 1e2f5b6e | 8124 | } |
| 6cdc0ccc | 8125 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8126 | free (relstart); |
| 6cdc0ccc | 8127 | |
| 411e1bfb AM |
8128 | if (local_syms != NULL |
| 8129 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8130 | { | |
| 8131 | if (!info->keep_memory) | |
| 8132 | free (local_syms); | |
| 8133 | else | |
| 8134 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8135 | } | |
| 8136 | } | |
| 8137 | ||
| 754021d0 AM |
8138 | if (some_edited) |
| 8139 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8140 | ||
| 3f764659 JJ |
8141 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8142 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8143 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8144 | { |
| 8145 | bfd_byte *p; | |
| 8146 | ||
| 8147 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8148 | { | |
| 8149 | BFD_ASSERT (need_pad->size > 0); | |
| 8150 | ||
| 8151 | p = bfd_malloc (need_pad->size + 8); | |
| 8152 | if (p == NULL) | |
| 8153 | return FALSE; | |
| 699733f6 | 8154 | |
| 3f764659 JJ |
8155 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8156 | p, 0, need_pad->size)) | |
| 8157 | return FALSE; | |
| 8158 | ||
| 8159 | need_pad->contents = p; | |
| 8160 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8161 | } | |
| 8162 | else | |
| 8163 | { | |
| 8164 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8165 | if (p == NULL) | |
| 8166 | return FALSE; | |
| 8167 | ||
| 8168 | need_pad->contents = p; | |
| 8169 | } | |
| 8170 | ||
| 8171 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8172 | need_pad->size += 8; | |
| 8173 | } | |
| 8174 | ||
| 411e1bfb AM |
8175 | return TRUE; |
| 8176 | } | |
| 8177 | ||
| e1918d23 | 8178 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8179 | |
| e1918d23 | 8180 | asection * |
| e7d1c40c | 8181 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8182 | { |
| 411e1bfb AM |
8183 | struct ppc_link_hash_table *htab; |
| 8184 | ||
| 411e1bfb | 8185 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8186 | if (htab == NULL) |
| 8187 | return NULL; | |
| 8188 | ||
| ee67d69a AM |
8189 | if (abiversion (info->output_bfd) == 1) |
| 8190 | htab->opd_abi = 1; | |
| 8191 | ||
| e7d1c40c | 8192 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8193 | htab->do_multi_toc = 0; |
| 8194 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8195 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8196 | |
| 8b5f1ed8 AM |
8197 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8198 | with symbol interposition. For example, glibc libpthread.so and | |
| 8199 | libc.so duplicate many pthread symbols, with a fallback | |
| 8200 | implementation in libc.so. In some cases the fallback does more | |
| 8201 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8202 | is one such symbol: the libpthread.so implementation is | |
| 8203 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8204 | An app that "cleverly" uses dlopen to only load necessary | |
| 8205 | libraries at runtime may omit loading libpthread.so when not | |
| 8206 | running multi-threaded, which then results in the libc.so | |
| 8207 | fallback symbols being used and ld.so complaining. Now there | |
| 8208 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8209 | pthread situation, but that may not be the only case where | |
| 8210 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8211 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8212 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8213 | if (htab->params->plt_localentry0 |
| 8214 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8215 | FALSE, FALSE, FALSE) == NULL) | |
| 8216 | info->callbacks->einfo | |
| 8217 | (_("%P: warning: --plt-localentry is especially dangerous without " | |
| 8218 | "ld.so support to detect ABI violations.\n")); | |
| f378ab09 | 8219 | |
| 3a71aa26 AM |
8220 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8221 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8222 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8223 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8224 | if (htab->tls_get_addr != NULL) | |
| 8225 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8226 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8227 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8228 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8229 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8230 | { |
| 8231 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8232 | ||
| 8233 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8234 | FALSE, FALSE, TRUE); | |
| 8235 | if (opt != NULL) | |
| 8236 | func_desc_adjust (opt, info); | |
| 8237 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8238 | FALSE, FALSE, TRUE); | |
| 8239 | if (opt_fd != NULL | |
| 8240 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8241 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8242 | { | |
| 8243 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8244 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8245 | be calling __tls_get_addr via a plt call stub, then | |
| 8246 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8247 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8248 | if (htab->elf.dynamic_sections_created | |
| 8249 | && tga_fd != NULL | |
| 8250 | && (tga_fd->type == STT_FUNC | |
| 8251 | || tga_fd->needs_plt) | |
| 8252 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8253 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8254 | { |
| 8255 | struct plt_entry *ent; | |
| 8256 | ||
| 8257 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8258 | if (ent->plt.refcount > 0) | |
| 8259 | break; | |
| 8260 | if (ent != NULL) | |
| 8261 | { | |
| 8262 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8263 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8264 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8265 | opt_fd->mark = 1; |
| a7f2871e AM |
8266 | if (opt_fd->dynindx != -1) |
| 8267 | { | |
| 8268 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8269 | opt_fd->dynindx = -1; | |
| 8270 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8271 | opt_fd->dynstr_index); | |
| 8272 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8273 | return NULL; |
| a7f2871e AM |
8274 | } |
| 8275 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8276 | tga = &htab->tls_get_addr->elf; | |
| 8277 | if (opt != NULL && tga != NULL) | |
| 8278 | { | |
| 8279 | tga->root.type = bfd_link_hash_indirect; | |
| 8280 | tga->root.u.i.link = &opt->root; | |
| 8281 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8282 | opt->mark = 1; |
| a7f2871e AM |
8283 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8284 | tga->forced_local); | |
| 8285 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8286 | } | |
| 8287 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8288 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8289 | if (htab->tls_get_addr != NULL) | |
| 8290 | { | |
| 8291 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8292 | htab->tls_get_addr->is_func = 1; | |
| 8293 | } | |
| 8294 | } | |
| 8295 | } | |
| 8296 | } | |
| 7c9cf415 AM |
8297 | else if (htab->params->tls_get_addr_opt < 0) |
| 8298 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8299 | } |
| 33c0ec9d | 8300 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8301 | } |
| 8387904d | 8302 | |
| 3a71aa26 AM |
8303 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8304 | HASH1 or HASH2. */ | |
| 8387904d | 8305 | |
| 3a71aa26 AM |
8306 | static bfd_boolean |
| 8307 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8308 | const Elf_Internal_Rela *rel, | |
| 8309 | const struct ppc_link_hash_entry *hash1, | |
| 8310 | const struct ppc_link_hash_entry *hash2) | |
| 8311 | { | |
| 8312 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8313 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8314 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8315 | ||
| e054468f | 8316 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8317 | { |
| 3a71aa26 AM |
8318 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8319 | struct elf_link_hash_entry *h; | |
| 8387904d | 8320 | |
| 3a71aa26 | 8321 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8322 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8323 | if (h == &hash1->elf || h == &hash2->elf) |
| 8324 | return TRUE; | |
| a48ebf4d | 8325 | } |
| 3a71aa26 | 8326 | return FALSE; |
| 951fd09b | 8327 | } |
| 411e1bfb | 8328 | |
| 951fd09b AM |
8329 | /* Run through all the TLS relocs looking for optimization |
| 8330 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8331 | a preliminary section layout so that we know the TLS segment | |
| 8332 | offsets. We can't optimize earlier because some optimizations need | |
| 8333 | to know the tp offset, and we need to optimize before allocating | |
| 8334 | dynamic relocations. */ | |
| 8335 | ||
| 8336 | bfd_boolean | |
| 33c0ec9d | 8337 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8338 | { |
| 8339 | bfd *ibfd; | |
| 8340 | asection *sec; | |
| 8341 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8342 | unsigned char *toc_ref; |
| 102890f0 | 8343 | int pass; |
| 951fd09b | 8344 | |
| 3cbc1e5e | 8345 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8346 | return TRUE; |
| 8347 | ||
| 951fd09b | 8348 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8349 | if (htab == NULL) |
| 8350 | return FALSE; | |
| 8351 | ||
| 663a1470 AM |
8352 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8353 | entries involved with tls relocs, and check that tls relocs | |
| 8354 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8355 | such a call. If they are not, we can't do any tls optimization. | |
| 8356 | On the second pass twiddle tls_mask flags to notify | |
| 8357 | relocate_section that optimization can be done, and adjust got | |
| 8358 | and plt refcounts. */ | |
| 8359 | toc_ref = NULL; | |
| 8360 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8361 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8362 | { |
| 8363 | Elf_Internal_Sym *locsyms = NULL; | |
| 8364 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8365 | ||
| 102890f0 AM |
8366 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8367 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8368 | { | |
| 8369 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8370 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8371 | |
| 102890f0 AM |
8372 | /* Read the relocations. */ |
| 8373 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8374 | info->keep_memory); | |
| 8375 | if (relstart == NULL) | |
| 2915c55b JK |
8376 | { |
| 8377 | free (toc_ref); | |
| 8378 | return FALSE; | |
| 8379 | } | |
| 411e1bfb | 8380 | |
| 102890f0 AM |
8381 | relend = relstart + sec->reloc_count; |
| 8382 | for (rel = relstart; rel < relend; rel++) | |
| 8383 | { | |
| 8384 | enum elf_ppc64_reloc_type r_type; | |
| 8385 | unsigned long r_symndx; | |
| 8386 | struct elf_link_hash_entry *h; | |
| 8387 | Elf_Internal_Sym *sym; | |
| 8388 | asection *sym_sec; | |
| f961d9dd AM |
8389 | unsigned char *tls_mask; |
| 8390 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8391 | bfd_vma value; |
| 8392 | bfd_boolean ok_tprel, is_local; | |
| 8393 | long toc_ref_index = 0; | |
| 8394 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8395 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8396 | |
| 102890f0 AM |
8397 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8398 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8399 | r_symndx, ibfd)) | |
| 8400 | { | |
| 8401 | err_free_rel: | |
| 8402 | if (elf_section_data (sec)->relocs != relstart) | |
| 8403 | free (relstart); | |
| 8404 | if (toc_ref != NULL) | |
| 8405 | free (toc_ref); | |
| 8406 | if (locsyms != NULL | |
| 0ffa91dd | 8407 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8408 | != (unsigned char *) locsyms)) |
| 8409 | free (locsyms); | |
| 663a1470 | 8410 | return ret; |
| 102890f0 | 8411 | } |
| 411e1bfb | 8412 | |
| 102890f0 AM |
8413 | if (h != NULL) |
| 8414 | { | |
| 766bc656 AM |
8415 | if (h->root.type == bfd_link_hash_defined |
| 8416 | || h->root.type == bfd_link_hash_defweak) | |
| 8417 | value = h->root.u.def.value; | |
| 8418 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8419 | value = 0; | |
| 8420 | else | |
| 663a1470 AM |
8421 | { |
| 8422 | found_tls_get_addr_arg = 0; | |
| 8423 | continue; | |
| 8424 | } | |
| 102890f0 AM |
8425 | } |
| 8426 | else | |
| 8427 | /* Symbols referenced by TLS relocs must be of type | |
| 8428 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8429 | value = sym->st_value; | |
| 8430 | ||
| 8431 | ok_tprel = FALSE; | |
| 8432 | is_local = FALSE; | |
| 8433 | if (h == NULL | |
| 8434 | || !h->def_dynamic) | |
| 8435 | { | |
| 8436 | is_local = TRUE; | |
| 766bc656 AM |
8437 | if (h != NULL |
| 8438 | && h->root.type == bfd_link_hash_undefweak) | |
| 8439 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8440 | else if (sym_sec != NULL |
| 8441 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8442 | { |
| 8443 | value += sym_sec->output_offset; | |
| 8444 | value += sym_sec->output_section->vma; | |
| 8445 | value -= htab->elf.tls_sec->vma; | |
| 8446 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8447 | < (bfd_vma) 1 << 32); | |
| 8448 | } | |
| 102890f0 | 8449 | } |
| 951fd09b | 8450 | |
| 102890f0 | 8451 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8452 | /* If this section has old-style __tls_get_addr calls |
| 8453 | without marker relocs, then check that each | |
| 8454 | __tls_get_addr call reloc is preceded by a reloc | |
| 8455 | that conceivably belongs to the __tls_get_addr arg | |
| 8456 | setup insn. If we don't find matching arg setup | |
| 8457 | relocs, don't do any tls optimization. */ | |
| 8458 | if (pass == 0 | |
| 8459 | && sec->has_tls_get_addr_call | |
| 8460 | && h != NULL | |
| 8461 | && (h == &htab->tls_get_addr->elf | |
| 8462 | || h == &htab->tls_get_addr_fd->elf) | |
| 8463 | && !found_tls_get_addr_arg | |
| 8464 | && is_branch_reloc (r_type)) | |
| 8465 | { | |
| 25f53a85 | 8466 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8467 | "TLS optimization disabled\n"), |
| 8468 | ibfd, sec, rel->r_offset); | |
| 8469 | ret = TRUE; | |
| 8470 | goto err_free_rel; | |
| 8471 | } | |
| 8472 | ||
| 8473 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8474 | switch (r_type) |
| 8475 | { | |
| 8476 | case R_PPC64_GOT_TLSLD16: | |
| 8477 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8478 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8479 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8480 | /* Fall through. */ |
| 102890f0 AM |
8481 | |
| 8482 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8483 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8484 | /* These relocs should never be against a symbol | |
| 8485 | defined in a shared lib. Leave them alone if | |
| 8486 | that turns out to be the case. */ | |
| 8487 | if (!is_local) | |
| 8488 | continue; | |
| 411e1bfb | 8489 | |
| 102890f0 | 8490 | /* LD -> LE */ |
| 411e1bfb | 8491 | tls_set = 0; |
| 102890f0 AM |
8492 | tls_clear = TLS_LD; |
| 8493 | tls_type = TLS_TLS | TLS_LD; | |
| 8494 | break; | |
| 411e1bfb | 8495 | |
| 102890f0 AM |
8496 | case R_PPC64_GOT_TLSGD16: |
| 8497 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8498 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8499 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8500 | /* Fall through. */ |
| 102890f0 AM |
8501 | |
| 8502 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8503 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8504 | if (ok_tprel) | |
| 8505 | /* GD -> LE */ | |
| 411e1bfb | 8506 | tls_set = 0; |
| 102890f0 AM |
8507 | else |
| 8508 | /* GD -> IE */ | |
| 8509 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8510 | tls_clear = TLS_GD; | |
| 8511 | tls_type = TLS_TLS | TLS_GD; | |
| 8512 | break; | |
| 8513 | ||
| 8514 | case R_PPC64_GOT_TPREL16_DS: | |
| 8515 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8516 | case R_PPC64_GOT_TPREL16_HI: | |
| 8517 | case R_PPC64_GOT_TPREL16_HA: | |
| 8518 | if (ok_tprel) | |
| 8519 | { | |
| 8520 | /* IE -> LE */ | |
| 8521 | tls_set = 0; | |
| 8522 | tls_clear = TLS_TPREL; | |
| 8523 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8524 | break; | |
| 8525 | } | |
| 411e1bfb AM |
8526 | continue; |
| 8527 | ||
| 727fc41e AM |
8528 | case R_PPC64_TLSGD: |
| 8529 | case R_PPC64_TLSLD: | |
| 663a1470 | 8530 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8531 | /* Fall through. */ |
| 663a1470 AM |
8532 | |
| 8533 | case R_PPC64_TLS: | |
| 8534 | case R_PPC64_TOC16: | |
| 8535 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8536 | if (sym_sec == NULL || sym_sec != toc) |
| 8537 | continue; | |
| 8538 | ||
| 8539 | /* Mark this toc entry as referenced by a TLS | |
| 8540 | code sequence. We can do that now in the | |
| 8541 | case of R_PPC64_TLS, and after checking for | |
| 8542 | tls_get_addr for the TOC16 relocs. */ | |
| 8543 | if (toc_ref == NULL) | |
| 663a1470 AM |
8544 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8545 | if (toc_ref == NULL) | |
| 8546 | goto err_free_rel; | |
| 8547 | ||
| 102890f0 AM |
8548 | if (h != NULL) |
| 8549 | value = h->root.u.def.value; | |
| 8550 | else | |
| 8551 | value = sym->st_value; | |
| 8552 | value += rel->r_addend; | |
| 73242275 AM |
8553 | if (value % 8 != 0) |
| 8554 | continue; | |
| 8555 | BFD_ASSERT (value < toc->size | |
| 8556 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8557 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8558 | if (r_type == R_PPC64_TLS |
| 8559 | || r_type == R_PPC64_TLSGD | |
| 8560 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8561 | { |
| 8562 | toc_ref[toc_ref_index] = 1; | |
| 8563 | continue; | |
| 8564 | } | |
| 8565 | ||
| 8566 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8567 | continue; | |
| 8568 | ||
| 8569 | tls_set = 0; | |
| 8570 | tls_clear = 0; | |
| 8571 | expecting_tls_get_addr = 2; | |
| 8572 | break; | |
| 8573 | ||
| 8574 | case R_PPC64_TPREL64: | |
| 8575 | if (pass == 0 | |
| 8576 | || sec != toc | |
| 8577 | || toc_ref == NULL | |
| 663a1470 | 8578 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8579 | continue; |
| 8580 | if (ok_tprel) | |
| 8581 | { | |
| 8582 | /* IE -> LE */ | |
| 8583 | tls_set = TLS_EXPLICIT; | |
| 8584 | tls_clear = TLS_TPREL; | |
| 8585 | break; | |
| 8586 | } | |
| 8587 | continue; | |
| 8588 | ||
| 8589 | case R_PPC64_DTPMOD64: | |
| 8590 | if (pass == 0 | |
| 8591 | || sec != toc | |
| 8592 | || toc_ref == NULL | |
| 663a1470 | 8593 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8594 | continue; |
| 8595 | if (rel + 1 < relend | |
| 8596 | && (rel[1].r_info | |
| 8597 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8598 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8599 | { | |
| 8600 | if (ok_tprel) | |
| 8601 | /* GD -> LE */ | |
| 8602 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8603 | else | |
| 8604 | /* GD -> IE */ | |
| 8605 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8606 | tls_clear = TLS_GD; | |
| 8607 | } | |
| 8608 | else | |
| 8609 | { | |
| 8610 | if (!is_local) | |
| 8611 | continue; | |
| 8612 | ||
| 8613 | /* LD -> LE */ | |
| 8614 | tls_set = TLS_EXPLICIT; | |
| 8615 | tls_clear = TLS_LD; | |
| 8616 | } | |
| 8617 | break; | |
| 8618 | ||
| 8619 | default: | |
| 8620 | continue; | |
| 8621 | } | |
| 8622 | ||
| 8623 | if (pass == 0) | |
| 8624 | { | |
| 727fc41e AM |
8625 | if (!expecting_tls_get_addr |
| 8626 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8627 | continue; |
| 8628 | ||
| 3a71aa26 AM |
8629 | if (rel + 1 < relend |
| 8630 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8631 | htab->tls_get_addr, | |
| 8632 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8633 | { |
| 3a71aa26 | 8634 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8635 | { |
| 3a71aa26 | 8636 | /* Check for toc tls entries. */ |
| f961d9dd | 8637 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8638 | int retval; |
| 8639 | ||
| 8640 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8641 | &locsyms, | |
| 8642 | rel, ibfd); | |
| 8643 | if (retval == 0) | |
| 8644 | goto err_free_rel; | |
| 663a1470 AM |
8645 | if (toc_tls != NULL) |
| 8646 | { | |
| 8647 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8648 | found_tls_get_addr_arg = 1; | |
| 8649 | if (retval > 1) | |
| 8650 | toc_ref[toc_ref_index] = 1; | |
| 8651 | } | |
| 102890f0 | 8652 | } |
| 3a71aa26 | 8653 | continue; |
| 102890f0 AM |
8654 | } |
| 8655 | ||
| 8656 | if (expecting_tls_get_addr != 1) | |
| 8657 | continue; | |
| 8658 | ||
| 8659 | /* Uh oh, we didn't find the expected call. We | |
| 8660 | could just mark this symbol to exclude it | |
| 8661 | from tls optimization but it's safer to skip | |
| 663a1470 | 8662 | the entire optimization. */ |
| 695344c0 | 8663 | /* xgettext:c-format */ |
| 25f53a85 | 8664 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8665 | "TLS optimization disabled\n"), |
| 8666 | ibfd, sec, rel->r_offset); | |
| 8667 | ret = TRUE; | |
| 8668 | goto err_free_rel; | |
| 102890f0 AM |
8669 | } |
| 8670 | ||
| 85f7a9cb | 8671 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8672 | { |
| 8673 | struct plt_entry *ent; | |
| 8674 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8675 | ent != NULL; | |
| 8676 | ent = ent->next) | |
| 8677 | if (ent->addend == 0) | |
| 411e1bfb | 8678 | { |
| 102890f0 | 8679 | if (ent->plt.refcount > 0) |
| 30038c59 | 8680 | { |
| 102890f0 AM |
8681 | ent->plt.refcount -= 1; |
| 8682 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8683 | } |
| 102890f0 | 8684 | break; |
| 411e1bfb | 8685 | } |
| 102890f0 | 8686 | } |
| 411e1bfb | 8687 | |
| 85f7a9cb | 8688 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8689 | { |
| 8690 | struct plt_entry *ent; | |
| 8691 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8692 | ent != NULL; | |
| 8693 | ent = ent->next) | |
| 8694 | if (ent->addend == 0) | |
| 411e1bfb | 8695 | { |
| 102890f0 AM |
8696 | if (ent->plt.refcount > 0) |
| 8697 | ent->plt.refcount -= 1; | |
| 8698 | break; | |
| 411e1bfb | 8699 | } |
| 102890f0 | 8700 | } |
| 411e1bfb | 8701 | |
| 102890f0 | 8702 | if (tls_clear == 0) |
| 30038c59 AM |
8703 | continue; |
| 8704 | ||
| 102890f0 AM |
8705 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8706 | { | |
| 8707 | struct got_entry *ent; | |
| 411e1bfb | 8708 | |
| 102890f0 AM |
8709 | /* Adjust got entry for this reloc. */ |
| 8710 | if (h != NULL) | |
| 8711 | ent = h->got.glist; | |
| 8712 | else | |
| 8713 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8714 | |
| 102890f0 AM |
8715 | for (; ent != NULL; ent = ent->next) |
| 8716 | if (ent->addend == rel->r_addend | |
| 8717 | && ent->owner == ibfd | |
| 8718 | && ent->tls_type == tls_type) | |
| 8719 | break; | |
| 8720 | if (ent == NULL) | |
| 8721 | abort (); | |
| 411e1bfb | 8722 | |
| 102890f0 AM |
8723 | if (tls_set == 0) |
| 8724 | { | |
| 8725 | /* We managed to get rid of a got entry. */ | |
| 8726 | if (ent->got.refcount > 0) | |
| 8727 | ent->got.refcount -= 1; | |
| 8728 | } | |
| 8729 | } | |
| 8730 | else | |
| 8731 | { | |
| 8732 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8733 | we'll lose one or two dyn relocs. */ | |
| 8734 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8735 | NULL, h, sym)) |
| 102890f0 | 8736 | return FALSE; |
| 411e1bfb | 8737 | |
| 102890f0 AM |
8738 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8739 | { | |
| 8740 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8741 | NULL, h, sym)) |
| 102890f0 AM |
8742 | return FALSE; |
| 8743 | } | |
| 8744 | } | |
| 411e1bfb | 8745 | |
| 102890f0 AM |
8746 | *tls_mask |= tls_set; |
| 8747 | *tls_mask &= ~tls_clear; | |
| 8748 | } | |
| 8c1d1bb8 | 8749 | |
| 102890f0 AM |
8750 | if (elf_section_data (sec)->relocs != relstart) |
| 8751 | free (relstart); | |
| 8752 | } | |
| 411e1bfb | 8753 | |
| 663a1470 AM |
8754 | if (locsyms != NULL |
| 8755 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8756 | { | |
| 8757 | if (!info->keep_memory) | |
| 8758 | free (locsyms); | |
| 8759 | else | |
| 8760 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8761 | } | |
| 8762 | } | |
| 411e1bfb | 8763 | |
| 663a1470 AM |
8764 | if (toc_ref != NULL) |
| 8765 | free (toc_ref); | |
| 9a23f96e | 8766 | htab->do_tls_opt = 1; |
| b34976b6 | 8767 | return TRUE; |
| 1e2f5b6e | 8768 | } |
| b34976b6 | 8769 | |
| c5614fa4 AM |
8770 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8771 | the values of any global symbols in a toc section that has been | |
| 8772 | edited. Globals in toc sections should be a rarity, so this function | |
| 8773 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 8774 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
8775 | |
| 8776 | struct adjust_toc_info | |
| 8777 | { | |
| 8778 | asection *toc; | |
| 8779 | unsigned long *skip; | |
| 8780 | bfd_boolean global_toc_syms; | |
| 8781 | }; | |
| 8782 | ||
| ba761f19 AM |
8783 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8784 | ||
| c5614fa4 AM |
8785 | static bfd_boolean |
| 8786 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8787 | { | |
| 8788 | struct ppc_link_hash_entry *eh; | |
| 8789 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8790 | unsigned long i; |
| c5614fa4 | 8791 | |
| c5614fa4 AM |
8792 | if (h->root.type != bfd_link_hash_defined |
| 8793 | && h->root.type != bfd_link_hash_defweak) | |
| 8794 | return TRUE; | |
| 8795 | ||
| 8796 | eh = (struct ppc_link_hash_entry *) h; | |
| 8797 | if (eh->adjust_done) | |
| 8798 | return TRUE; | |
| 8799 | ||
| 8800 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8801 | { | |
| 854b41e7 AM |
8802 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8803 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8804 | else |
| 854b41e7 AM |
8805 | i = eh->elf.root.u.def.value >> 3; |
| 8806 | ||
| ba761f19 | 8807 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8808 | { |
| 4eca0228 | 8809 | _bfd_error_handler |
| 854b41e7 AM |
8810 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8811 | do | |
| 8812 | ++i; | |
| ba761f19 | 8813 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8814 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8815 | } |
| 854b41e7 AM |
8816 | |
| 8817 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8818 | eh->adjust_done = 1; |
| 8819 | } | |
| 8820 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8821 | toc_inf->global_toc_syms = TRUE; | |
| 8822 | ||
| 8823 | return TRUE; | |
| 8824 | } | |
| 8825 | ||
| 39eeab25 AM |
8826 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8827 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8828 | |
| 8829 | static bfd_boolean | |
| 39eeab25 | 8830 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8831 | { |
| 39eeab25 AM |
8832 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8833 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8834 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8835 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8836 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8837 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8838 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8839 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8840 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8841 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8842 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8843 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8844 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8845 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8846 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8847 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8848 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8849 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8850 | defined for the reduced D field in psq_lu then those | |
| 8851 | will need testing too. */ | |
| 8852 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8853 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8854 | && (insn & 1) == 0) | |
| 8855 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8856 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8857 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8858 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8859 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8860 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8861 | } |
| 8862 | ||
| c5614fa4 AM |
8863 | /* Examine all relocs referencing .toc sections in order to remove |
| 8864 | unused .toc entries. */ | |
| 8865 | ||
| 8866 | bfd_boolean | |
| 33c0ec9d | 8867 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8868 | { |
| 8869 | bfd *ibfd; | |
| 8870 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8871 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8872 | |
| 67f0cbdb | 8873 | htab->do_toc_opt = 1; |
| c5614fa4 | 8874 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8875 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8876 | { |
| 8877 | asection *toc, *sec; | |
| 8878 | Elf_Internal_Shdr *symtab_hdr; | |
| 8879 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8880 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8881 | unsigned long *skip, *drop; |
| 8882 | unsigned char *used; | |
| 8883 | unsigned char *keep, last, some_unused; | |
| 8884 | ||
| 854b41e7 AM |
8885 | if (!is_ppc64_elf (ibfd)) |
| 8886 | continue; | |
| 8887 | ||
| c5614fa4 AM |
8888 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8889 | if (toc == NULL | |
| 92b7a70f | 8890 | || toc->size == 0 |
| dbaa2011 AM |
8891 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8892 | || discarded_section (toc)) | |
| c5614fa4 AM |
8893 | continue; |
| 8894 | ||
| 425b145b | 8895 | toc_relocs = NULL; |
| c5614fa4 | 8896 | local_syms = NULL; |
| 0ffa91dd | 8897 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8898 | |
| 8899 | /* Look at sections dropped from the final link. */ | |
| 8900 | skip = NULL; | |
| 8901 | relstart = NULL; | |
| 8902 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8903 | { | |
| 8904 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8905 | || !discarded_section (sec) |
| c5614fa4 AM |
8906 | || get_opd_info (sec) |
| 8907 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8908 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8909 | continue; | |
| 8910 | ||
| 8911 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8912 | if (relstart == NULL) | |
| 8913 | goto error_ret; | |
| 8914 | ||
| 8915 | /* Run through the relocs to see which toc entries might be | |
| 8916 | unused. */ | |
| 8917 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8918 | { | |
| 8919 | enum elf_ppc64_reloc_type r_type; | |
| 8920 | unsigned long r_symndx; | |
| 8921 | asection *sym_sec; | |
| 8922 | struct elf_link_hash_entry *h; | |
| 8923 | Elf_Internal_Sym *sym; | |
| 8924 | bfd_vma val; | |
| 8925 | ||
| 8926 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8927 | switch (r_type) | |
| 8928 | { | |
| 8929 | default: | |
| 8930 | continue; | |
| 8931 | ||
| 8932 | case R_PPC64_TOC16: | |
| 8933 | case R_PPC64_TOC16_LO: | |
| 8934 | case R_PPC64_TOC16_HI: | |
| 8935 | case R_PPC64_TOC16_HA: | |
| 8936 | case R_PPC64_TOC16_DS: | |
| 8937 | case R_PPC64_TOC16_LO_DS: | |
| 8938 | break; | |
| 8939 | } | |
| 8940 | ||
| 8941 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8942 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8943 | r_symndx, ibfd)) | |
| 8944 | goto error_ret; | |
| 8945 | ||
| 8946 | if (sym_sec != toc) | |
| 8947 | continue; | |
| 8948 | ||
| 8949 | if (h != NULL) | |
| 8950 | val = h->root.u.def.value; | |
| 8951 | else | |
| 8952 | val = sym->st_value; | |
| 8953 | val += rel->r_addend; | |
| 8954 | ||
| 8955 | if (val >= toc->size) | |
| 8956 | continue; | |
| 8957 | ||
| 8958 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8959 | If not, don't mark as unused. */ | |
| 8960 | if (val & 7) | |
| 8961 | continue; | |
| 8962 | ||
| 8963 | if (skip == NULL) | |
| 8964 | { | |
| 854b41e7 | 8965 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8966 | if (skip == NULL) |
| 8967 | goto error_ret; | |
| 8968 | } | |
| 8969 | ||
| ba761f19 | 8970 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8971 | } |
| 8972 | ||
| 8973 | if (elf_section_data (sec)->relocs != relstart) | |
| 8974 | free (relstart); | |
| 8975 | } | |
| 8976 | ||
| ba761f19 AM |
8977 | /* For largetoc loads of address constants, we can convert |
| 8978 | . addis rx,2,addr@got@ha | |
| 8979 | . ld ry,addr@got@l(rx) | |
| 8980 | to | |
| 8981 | . addis rx,2,addr@toc@ha | |
| 8982 | . addi ry,rx,addr@toc@l | |
| 8983 | when addr is within 2G of the toc pointer. This then means | |
| 8984 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8985 | |
| ba761f19 AM |
8986 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8987 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8988 | && toc->reloc_count != 0) | |
| 8989 | { | |
| 8990 | /* Read toc relocs. */ | |
| 425b145b AM |
8991 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8992 | info->keep_memory); | |
| 8993 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8994 | goto error_ret; |
| 8995 | ||
| 425b145b | 8996 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8997 | { |
| 8998 | enum elf_ppc64_reloc_type r_type; | |
| 8999 | unsigned long r_symndx; | |
| 9000 | asection *sym_sec; | |
| 9001 | struct elf_link_hash_entry *h; | |
| 9002 | Elf_Internal_Sym *sym; | |
| 9003 | bfd_vma val, addr; | |
| 9004 | ||
| 9005 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9006 | if (r_type != R_PPC64_ADDR64) | |
| 9007 | continue; | |
| 9008 | ||
| 9009 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9010 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9011 | r_symndx, ibfd)) | |
| 9012 | goto error_ret; | |
| 9013 | ||
| 425b145b | 9014 | if (sym_sec == NULL |
| c27b8c2a | 9015 | || sym_sec->output_section == NULL |
| dbaa2011 | 9016 | || discarded_section (sym_sec)) |
| 425b145b AM |
9017 | continue; |
| 9018 | ||
| afe397ea | 9019 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9020 | continue; |
| 9021 | ||
| 9022 | if (h != NULL) | |
| bddc25c9 AM |
9023 | { |
| 9024 | if (h->type == STT_GNU_IFUNC) | |
| 9025 | continue; | |
| 9026 | val = h->root.u.def.value; | |
| 9027 | } | |
| ba761f19 | 9028 | else |
| bddc25c9 AM |
9029 | { |
| 9030 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9031 | continue; | |
| 9032 | val = sym->st_value; | |
| 9033 | } | |
| ba761f19 AM |
9034 | val += rel->r_addend; |
| 9035 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9036 | ||
| 9037 | /* We don't yet know the exact toc pointer value, but we | |
| 9038 | know it will be somewhere in the toc section. Don't | |
| 9039 | optimize if the difference from any possible toc | |
| 9040 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9041 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9042 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9043 | continue; | |
| 9044 | ||
| 9045 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9046 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9047 | continue; | |
| 9048 | ||
| 9049 | if (skip == NULL) | |
| 9050 | { | |
| 9051 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9052 | if (skip == NULL) | |
| 9053 | goto error_ret; | |
| 9054 | } | |
| 9055 | ||
| 9056 | skip[rel->r_offset >> 3] | |
| 425b145b | 9057 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9058 | } |
| ba761f19 AM |
9059 | } |
| 9060 | ||
| c5614fa4 AM |
9061 | if (skip == NULL) |
| 9062 | continue; | |
| 9063 | ||
| 9064 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9065 | if (used == NULL) | |
| 9066 | { | |
| 9067 | error_ret: | |
| 9068 | if (local_syms != NULL | |
| 9069 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9070 | free (local_syms); | |
| 9071 | if (sec != NULL | |
| 9072 | && relstart != NULL | |
| 9073 | && elf_section_data (sec)->relocs != relstart) | |
| 9074 | free (relstart); | |
| 425b145b AM |
9075 | if (toc_relocs != NULL |
| 9076 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9077 | free (toc_relocs); | |
| c5614fa4 AM |
9078 | if (skip != NULL) |
| 9079 | free (skip); | |
| 9080 | return FALSE; | |
| 9081 | } | |
| 9082 | ||
| 30038c59 AM |
9083 | /* Now check all kept sections that might reference the toc. |
| 9084 | Check the toc itself last. */ | |
| 9085 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9086 | : ibfd->sections); | |
| c5614fa4 | 9087 | sec != NULL; |
| c5614fa4 | 9088 | sec = (sec == toc ? NULL |
| c5614fa4 | 9089 | : sec->next == NULL ? toc |
| 30038c59 | 9090 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9091 | : sec->next)) |
| 9092 | { | |
| 9093 | int repeat; | |
| 9094 | ||
| 9095 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9096 | || discarded_section (sec) |
| c5614fa4 AM |
9097 | || get_opd_info (sec) |
| 9098 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9099 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9100 | continue; | |
| 9101 | ||
| 854b41e7 AM |
9102 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9103 | info->keep_memory); | |
| c5614fa4 | 9104 | if (relstart == NULL) |
| 2915c55b JK |
9105 | { |
| 9106 | free (used); | |
| 9107 | goto error_ret; | |
| 9108 | } | |
| c5614fa4 AM |
9109 | |
| 9110 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9111 | do |
| d4f1ee75 AM |
9112 | { |
| 9113 | repeat = 0; | |
| 9114 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9115 | { | |
| 9116 | enum elf_ppc64_reloc_type r_type; | |
| 9117 | unsigned long r_symndx; | |
| 9118 | asection *sym_sec; | |
| 9119 | struct elf_link_hash_entry *h; | |
| 9120 | Elf_Internal_Sym *sym; | |
| 9121 | bfd_vma val; | |
| 9122 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9123 | |
| d4f1ee75 AM |
9124 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9125 | switch (r_type) | |
| 9126 | { | |
| 9127 | default: | |
| 9128 | insn_check = no_check; | |
| 9129 | break; | |
| 98528052 | 9130 | |
| d4f1ee75 AM |
9131 | case R_PPC64_GOT_TLSLD16_HA: |
| 9132 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9133 | case R_PPC64_GOT_TPREL16_HA: | |
| 9134 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9135 | case R_PPC64_GOT16_HA: | |
| 9136 | case R_PPC64_TOC16_HA: | |
| 9137 | insn_check = check_ha; | |
| 9138 | break; | |
| 98528052 | 9139 | |
| d4f1ee75 AM |
9140 | case R_PPC64_GOT_TLSLD16_LO: |
| 9141 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9142 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9143 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9144 | case R_PPC64_GOT16_LO: | |
| 9145 | case R_PPC64_GOT16_LO_DS: | |
| 9146 | case R_PPC64_TOC16_LO: | |
| 9147 | case R_PPC64_TOC16_LO_DS: | |
| 9148 | insn_check = check_lo; | |
| 9149 | break; | |
| 9150 | } | |
| 560c8763 | 9151 | |
| d4f1ee75 AM |
9152 | if (insn_check != no_check) |
| 9153 | { | |
| 9154 | bfd_vma off = rel->r_offset & ~3; | |
| 9155 | unsigned char buf[4]; | |
| 9156 | unsigned int insn; | |
| c5614fa4 | 9157 | |
| d4f1ee75 AM |
9158 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9159 | { | |
| 9160 | free (used); | |
| 9161 | goto error_ret; | |
| 9162 | } | |
| 9163 | insn = bfd_get_32 (ibfd, buf); | |
| 9164 | if (insn_check == check_lo | |
| 39eeab25 | 9165 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9166 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9167 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9168 | { | |
| 9169 | char str[12]; | |
| 9170 | ||
| 9171 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9172 | sprintf (str, "%#08x", insn); | |
| 9173 | info->callbacks->einfo | |
| 695344c0 | 9174 | /* xgettext:c-format */ |
| 174d0a74 | 9175 | (_("%H: toc optimization is not supported for" |
| d4f1ee75 AM |
9176 | " %s instruction.\n"), |
| 9177 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9178 | } | |
| 9179 | } | |
| c5614fa4 | 9180 | |
| d4f1ee75 AM |
9181 | switch (r_type) |
| 9182 | { | |
| 9183 | case R_PPC64_TOC16: | |
| 9184 | case R_PPC64_TOC16_LO: | |
| 9185 | case R_PPC64_TOC16_HI: | |
| 9186 | case R_PPC64_TOC16_HA: | |
| 9187 | case R_PPC64_TOC16_DS: | |
| 9188 | case R_PPC64_TOC16_LO_DS: | |
| 9189 | /* In case we're taking addresses of toc entries. */ | |
| 9190 | case R_PPC64_ADDR64: | |
| 9191 | break; | |
| c5614fa4 | 9192 | |
| d4f1ee75 AM |
9193 | default: |
| 9194 | continue; | |
| 9195 | } | |
| c5614fa4 | 9196 | |
| d4f1ee75 AM |
9197 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9198 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9199 | r_symndx, ibfd)) | |
| 9200 | { | |
| 9201 | free (used); | |
| 9202 | goto error_ret; | |
| 9203 | } | |
| c5614fa4 | 9204 | |
| d4f1ee75 AM |
9205 | if (sym_sec != toc) |
| 9206 | continue; | |
| c5614fa4 | 9207 | |
| d4f1ee75 AM |
9208 | if (h != NULL) |
| 9209 | val = h->root.u.def.value; | |
| 9210 | else | |
| 9211 | val = sym->st_value; | |
| 9212 | val += rel->r_addend; | |
| ba761f19 | 9213 | |
| d4f1ee75 AM |
9214 | if (val >= toc->size) |
| 9215 | continue; | |
| ba761f19 | 9216 | |
| d4f1ee75 AM |
9217 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9218 | { | |
| 9219 | bfd_vma off; | |
| 9220 | unsigned char opc; | |
| 9221 | ||
| 9222 | switch (r_type) | |
| 9223 | { | |
| 9224 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9225 | break; |
| ba761f19 | 9226 | |
| d4f1ee75 AM |
9227 | case R_PPC64_TOC16_LO_DS: |
| 9228 | off = rel->r_offset; | |
| 9229 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9230 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9231 | off, 1)) | |
| 9232 | { | |
| 9233 | free (used); | |
| 9234 | goto error_ret; | |
| 9235 | } | |
| 9236 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9237 | break; | |
| 1a0670f3 | 9238 | /* Fall through. */ |
| ba761f19 | 9239 | |
| d4f1ee75 AM |
9240 | default: |
| 9241 | /* Wrong sort of reloc, or not a ld. We may | |
| 9242 | as well clear ref_from_discarded too. */ | |
| 9243 | skip[val >> 3] = 0; | |
| 9244 | } | |
| 9245 | } | |
| 9246 | ||
| 9247 | if (sec != toc) | |
| 9248 | used[val >> 3] = 1; | |
| 9249 | /* For the toc section, we only mark as used if this | |
| 9250 | entry itself isn't unused. */ | |
| 9251 | else if ((used[rel->r_offset >> 3] | |
| 9252 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9253 | && !used[val >> 3]) | |
| 9254 | { | |
| 9255 | /* Do all the relocs again, to catch reference | |
| 9256 | chains. */ | |
| 9257 | repeat = 1; | |
| 9258 | used[val >> 3] = 1; | |
| 9259 | } | |
| 9260 | } | |
| 9261 | } | |
| c5614fa4 | 9262 | while (repeat); |
| 854b41e7 AM |
9263 | |
| 9264 | if (elf_section_data (sec)->relocs != relstart) | |
| 9265 | free (relstart); | |
| c5614fa4 AM |
9266 | } |
| 9267 | ||
| 9268 | /* Merge the used and skip arrays. Assume that TOC | |
| 9269 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9270 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9271 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9272 | drop < skip + (toc->size + 7) / 8; | |
| 9273 | ++drop, ++keep) | |
| 9274 | { | |
| 9275 | if (*keep) | |
| 9276 | { | |
| ba761f19 AM |
9277 | *drop &= ~ref_from_discarded; |
| 9278 | if ((*drop & can_optimize) != 0) | |
| 9279 | some_unused = 1; | |
| c5614fa4 AM |
9280 | last = 0; |
| 9281 | } | |
| b140b010 | 9282 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9283 | { |
| 9284 | some_unused = 1; | |
| ba761f19 | 9285 | last = ref_from_discarded; |
| c5614fa4 AM |
9286 | } |
| 9287 | else | |
| 9288 | *drop = last; | |
| 9289 | } | |
| 9290 | ||
| 9291 | free (used); | |
| 9292 | ||
| 9293 | if (some_unused) | |
| 9294 | { | |
| 9295 | bfd_byte *contents, *src; | |
| 9296 | unsigned long off; | |
| d62b3684 | 9297 | Elf_Internal_Sym *sym; |
| ba761f19 | 9298 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9299 | |
| 9300 | /* Shuffle the toc contents, and at the same time convert the | |
| 9301 | skip array from booleans into offsets. */ | |
| 9302 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9303 | goto error_ret; | |
| 9304 | ||
| 9305 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9306 | ||
| 9307 | for (src = contents, off = 0, drop = skip; | |
| 9308 | src < contents + toc->size; | |
| 9309 | src += 8, ++drop) | |
| 9310 | { | |
| ba761f19 AM |
9311 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9312 | off += 8; | |
| c5614fa4 AM |
9313 | else if (off != 0) |
| 9314 | { | |
| 9315 | *drop = off; | |
| 9316 | memcpy (src - off, src, 8); | |
| 9317 | } | |
| 9318 | } | |
| 854b41e7 | 9319 | *drop = off; |
| c5614fa4 AM |
9320 | toc->rawsize = toc->size; |
| 9321 | toc->size = src - contents - off; | |
| 9322 | ||
| ba761f19 AM |
9323 | /* Adjust addends for relocs against the toc section sym, |
| 9324 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9325 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9326 | { | |
| 9327 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9328 | || discarded_section (sec)) |
| c5614fa4 AM |
9329 | continue; |
| 9330 | ||
| 9331 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9332 | info->keep_memory); |
| c5614fa4 AM |
9333 | if (relstart == NULL) |
| 9334 | goto error_ret; | |
| 9335 | ||
| 9336 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9337 | { | |
| 9338 | enum elf_ppc64_reloc_type r_type; | |
| 9339 | unsigned long r_symndx; | |
| 9340 | asection *sym_sec; | |
| 9341 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9342 | bfd_vma val; |
| c5614fa4 AM |
9343 | |
| 9344 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9345 | switch (r_type) | |
| 9346 | { | |
| 9347 | default: | |
| 9348 | continue; | |
| 9349 | ||
| 9350 | case R_PPC64_TOC16: | |
| 9351 | case R_PPC64_TOC16_LO: | |
| 9352 | case R_PPC64_TOC16_HI: | |
| 9353 | case R_PPC64_TOC16_HA: | |
| 9354 | case R_PPC64_TOC16_DS: | |
| 9355 | case R_PPC64_TOC16_LO_DS: | |
| 9356 | case R_PPC64_ADDR64: | |
| 9357 | break; | |
| 9358 | } | |
| 9359 | ||
| 9360 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9361 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9362 | r_symndx, ibfd)) | |
| 9363 | goto error_ret; | |
| 9364 | ||
| ba761f19 | 9365 | if (sym_sec != toc) |
| c5614fa4 AM |
9366 | continue; |
| 9367 | ||
| ba761f19 AM |
9368 | if (h != NULL) |
| 9369 | val = h->root.u.def.value; | |
| 9370 | else | |
| 9371 | { | |
| 9372 | val = sym->st_value; | |
| 9373 | if (val != 0) | |
| 9374 | local_toc_syms = TRUE; | |
| 9375 | } | |
| 9376 | ||
| 9377 | val += rel->r_addend; | |
| 854b41e7 AM |
9378 | |
| 9379 | if (val > toc->rawsize) | |
| 9380 | val = toc->rawsize; | |
| ba761f19 AM |
9381 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9382 | continue; | |
| 9383 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9384 | { | |
| 9385 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9386 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9387 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9388 | ||
| 9389 | switch (r_type) | |
| 9390 | { | |
| 9391 | case R_PPC64_TOC16_HA: | |
| 9392 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9393 | break; | |
| 9394 | ||
| 9395 | case R_PPC64_TOC16_LO_DS: | |
| 9396 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9397 | break; | |
| 9398 | ||
| 9399 | default: | |
| 28942f62 AM |
9400 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9401 | ppc_howto_init (); | |
| b140b010 | 9402 | info->callbacks->einfo |
| 695344c0 | 9403 | /* xgettext:c-format */ |
| 174d0a74 | 9404 | (_("%H: %s references " |
| b140b010 AM |
9405 | "optimized away TOC entry\n"), |
| 9406 | ibfd, sec, rel->r_offset, | |
| 9407 | ppc64_elf_howto_table[r_type]->name); | |
| 9408 | bfd_set_error (bfd_error_bad_value); | |
| 9409 | goto error_ret; | |
| ba761f19 AM |
9410 | } |
| 9411 | rel->r_addend = tocrel->r_addend; | |
| 9412 | elf_section_data (sec)->relocs = relstart; | |
| 9413 | continue; | |
| 9414 | } | |
| 9415 | ||
| 9416 | if (h != NULL || sym->st_value != 0) | |
| 9417 | continue; | |
| 854b41e7 AM |
9418 | |
| 9419 | rel->r_addend -= skip[val >> 3]; | |
| 9420 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9421 | } |
| 854b41e7 AM |
9422 | |
| 9423 | if (elf_section_data (sec)->relocs != relstart) | |
| 9424 | free (relstart); | |
| c5614fa4 AM |
9425 | } |
| 9426 | ||
| 9427 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9428 | but handle them anyway. */ | |
| df22d223 AM |
9429 | if (local_syms != NULL) |
| 9430 | for (sym = local_syms; | |
| 9431 | sym < local_syms + symtab_hdr->sh_info; | |
| 9432 | ++sym) | |
| 9433 | if (sym->st_value != 0 | |
| 9434 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9435 | { | |
| 9436 | unsigned long i; | |
| 854b41e7 | 9437 | |
| df22d223 AM |
9438 | if (sym->st_value > toc->rawsize) |
| 9439 | i = toc->rawsize >> 3; | |
| 9440 | else | |
| 9441 | i = sym->st_value >> 3; | |
| 854b41e7 | 9442 | |
| df22d223 AM |
9443 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9444 | { | |
| 9445 | if (local_toc_syms) | |
| 4eca0228 | 9446 | _bfd_error_handler |
| df22d223 AM |
9447 | (_("%s defined on removed toc entry"), |
| 9448 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9449 | do | |
| 9450 | ++i; | |
| 9451 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9452 | sym->st_value = (bfd_vma) i << 3; | |
| 9453 | } | |
| d62b3684 | 9454 | |
| df22d223 AM |
9455 | sym->st_value -= skip[i]; |
| 9456 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9457 | } | |
| c5614fa4 | 9458 | |
| 854b41e7 | 9459 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9460 | if (toc_inf.global_toc_syms) |
| 9461 | { | |
| 9462 | toc_inf.toc = toc; | |
| 9463 | toc_inf.skip = skip; | |
| 9464 | toc_inf.global_toc_syms = FALSE; | |
| 9465 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9466 | &toc_inf); | |
| 9467 | } | |
| 854b41e7 AM |
9468 | |
| 9469 | if (toc->reloc_count != 0) | |
| 9470 | { | |
| d4730f92 | 9471 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9472 | Elf_Internal_Rela *wrel; |
| 9473 | bfd_size_type sz; | |
| 9474 | ||
| 854b41e7 | 9475 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9476 | if (toc_relocs == NULL) |
| 9477 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9478 | info->keep_memory); | |
| 9479 | if (toc_relocs == NULL) | |
| 9480 | goto error_ret; | |
| 9481 | ||
| 425b145b AM |
9482 | wrel = toc_relocs; |
| 9483 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9484 | if ((skip[rel->r_offset >> 3] |
| 9485 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9486 | { |
| 9487 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9488 | wrel->r_info = rel->r_info; | |
| 9489 | wrel->r_addend = rel->r_addend; | |
| 9490 | ++wrel; | |
| 9491 | } | |
| 9492 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9493 | &local_syms, NULL, NULL)) | |
| 9494 | goto error_ret; | |
| 9495 | ||
| 425b145b AM |
9496 | elf_section_data (toc)->relocs = toc_relocs; |
| 9497 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9498 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9499 | sz = rel_hdr->sh_entsize; | |
| 9500 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9501 | } |
| c5614fa4 | 9502 | } |
| 28be611c AM |
9503 | else if (toc_relocs != NULL |
| 9504 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9505 | free (toc_relocs); |
| c5614fa4 AM |
9506 | |
| 9507 | if (local_syms != NULL | |
| 9508 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9509 | { | |
| 9510 | if (!info->keep_memory) | |
| 9511 | free (local_syms); | |
| 9512 | else | |
| 9513 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9514 | } | |
| 9515 | free (skip); | |
| 9516 | } | |
| 9517 | ||
| 9518 | return TRUE; | |
| 9519 | } | |
| 9520 | ||
| 1bbe0902 AM |
9521 | /* Return true iff input section I references the TOC using |
| 9522 | instructions limited to +/-32k offsets. */ | |
| 9523 | ||
| 9524 | bfd_boolean | |
| 9525 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9526 | { | |
| 9527 | return (is_ppc64_elf (i->owner) | |
| 9528 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9529 | } | |
| 9530 | ||
| 927be08e AM |
9531 | /* Allocate space for one GOT entry. */ |
| 9532 | ||
| 9533 | static void | |
| 9534 | allocate_got (struct elf_link_hash_entry *h, | |
| 9535 | struct bfd_link_info *info, | |
| 9536 | struct got_entry *gent) | |
| 9537 | { | |
| 9538 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9539 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9540 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9541 | ? 16 : 8); | |
| 9542 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9543 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9544 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9545 | ||
| 9546 | gent->got.offset = got->size; | |
| 9547 | got->size += entsize; | |
| 9548 | ||
| 19e08130 | 9549 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9550 | { |
| 33e44f2e | 9551 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9552 | htab->got_reli_size += rentsize; |
| 927be08e | 9553 | } |
| f15d0b54 AM |
9554 | else if (((bfd_link_pic (info) |
| 9555 | && !((gent->tls_type & TLS_TPREL) != 0 | |
| 9556 | && bfd_link_executable (info) | |
| 9557 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
| f0158f44 AM |
9558 | || (htab->elf.dynamic_sections_created |
| 9559 | && h->dynindx != -1 | |
| 9560 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9561 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9562 | { |
| 19e08130 | 9563 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9564 | relgot->size += rentsize; |
| 927be08e AM |
9565 | } |
| 9566 | } | |
| 9567 | ||
| 7865406b AM |
9568 | /* This function merges got entries in the same toc group. */ |
| 9569 | ||
| 9570 | static void | |
| 9571 | merge_got_entries (struct got_entry **pent) | |
| 9572 | { | |
| 9573 | struct got_entry *ent, *ent2; | |
| 9574 | ||
| 9575 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9576 | if (!ent->is_indirect) | |
| 9577 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9578 | if (!ent2->is_indirect | |
| 9579 | && ent2->addend == ent->addend | |
| 9580 | && ent2->tls_type == ent->tls_type | |
| 9581 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9582 | { | |
| 9583 | ent2->is_indirect = TRUE; | |
| 9584 | ent2->got.ent = ent; | |
| 9585 | } | |
| 9586 | } | |
| 9587 | ||
| 46434633 | 9588 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9589 | |
| 9590 | static bfd_boolean | |
| 46434633 AM |
9591 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9592 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9593 | { |
| 9594 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9595 | ||
| 9596 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9597 | && ((info->dynamic_undefined_weak != 0 |
| 9598 | && h->root.type == bfd_link_hash_undefweak) | |
| 9599 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9600 | && h->dynindx == -1 |
| 9601 | && !h->forced_local | |
| 9602 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9603 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9604 | return TRUE; | |
| 9605 | } | |
| 9606 | ||
| 65f38f15 AM |
9607 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9608 | dynamic relocs. */ | |
| 5bd4f169 | 9609 | |
| b34976b6 | 9610 | static bfd_boolean |
| 4ce794b7 | 9611 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9612 | { |
| 65f38f15 AM |
9613 | struct bfd_link_info *info; |
| 9614 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9615 | asection *s; |
| 65f38f15 | 9616 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9617 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9618 | |
| e92d460e | 9619 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9620 | return TRUE; |
| 5bd4f169 | 9621 | |
| 65f38f15 AM |
9622 | info = (struct bfd_link_info *) inf; |
| 9623 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9624 | if (htab == NULL) |
| 9625 | return FALSE; | |
| 5bd4f169 | 9626 | |
| 951fd09b AM |
9627 | eh = (struct ppc_link_hash_entry *) h; |
| 9628 | /* Run through the TLS GD got entries first if we're changing them | |
| 9629 | to TPREL. */ | |
| e7b938ca | 9630 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9631 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9632 | if (gent->got.refcount > 0 | |
| 9633 | && (gent->tls_type & TLS_GD) != 0) | |
| 9634 | { | |
| 9635 | /* This was a GD entry that has been converted to TPREL. If | |
| 9636 | there happens to be a TPREL entry we can use that one. */ | |
| 9637 | struct got_entry *ent; | |
| 9638 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9639 | if (ent->got.refcount > 0 | |
| 9640 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9641 | && ent->addend == gent->addend |
| 9642 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9643 | { |
| 9644 | gent->got.refcount = 0; | |
| 9645 | break; | |
| 9646 | } | |
| 9647 | ||
| 9648 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9649 | if (gent->got.refcount != 0) | |
| 9650 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9651 | } | |
| 9652 | ||
| 7865406b AM |
9653 | /* Remove any list entry that won't generate a word in the GOT before |
| 9654 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9655 | entries. */ | |
| 0b8bcf0d AM |
9656 | pgent = &h->got.glist; |
| 9657 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9658 | if (gent->got.refcount > 0) |
| 7865406b AM |
9659 | { |
| 9660 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9661 | && !h->def_dynamic) | |
| 9662 | { | |
| 9663 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9664 | *pgent = gent->next; | |
| 9665 | } | |
| 9666 | else | |
| 9667 | pgent = &gent->next; | |
| 9668 | } | |
| 9669 | else | |
| 9670 | *pgent = gent->next; | |
| 9671 | ||
| 9672 | if (!htab->do_multi_toc) | |
| 9673 | merge_got_entries (&h->got.glist); | |
| 9674 | ||
| 9675 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9676 | if (!gent->is_indirect) | |
| 411e1bfb | 9677 | { |
| 46434633 AM |
9678 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9679 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9680 | return FALSE; |
| 65f38f15 | 9681 | |
| 0c8d6e5c | 9682 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9683 | abort (); |
| 0ffa91dd | 9684 | |
| 927be08e | 9685 | allocate_got (h, info, gent); |
| 411e1bfb | 9686 | } |
| 65f38f15 | 9687 | |
| 954b63d4 AM |
9688 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9689 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9690 | if (!htab->elf.dynamic_sections_created |
| 9691 | && h->type != STT_GNU_IFUNC) | |
| 9692 | eh->dyn_relocs = NULL; | |
| 9693 | ||
| 529fe20e AM |
9694 | /* Discard relocs on undefined symbols that must be local. */ |
| 9695 | else if (h->root.type == bfd_link_hash_undefined | |
| 9696 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9697 | eh->dyn_relocs = NULL; | |
| 9698 | ||
| 954b63d4 AM |
9699 | /* Also discard relocs on undefined weak syms with non-default |
| 9700 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 9701 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
9702 | eh->dyn_relocs = NULL; |
| 9703 | ||
| 8a2058b5 | 9704 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 9705 | { |
| 8a2058b5 AM |
9706 | struct elf_dyn_relocs *p, **pp; |
| 9707 | ||
| 57e7d118 AM |
9708 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9709 | dynamic pc-relative relocs against symbols which turn out to | |
| 9710 | be defined in regular objects. For the normal shared case, | |
| 9711 | discard space for relocs that have become local due to symbol | |
| 9712 | visibility changes. */ | |
| 9713 | ||
| 9714 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9715 | { |
| 57e7d118 AM |
9716 | /* Relocs that use pc_count are those that appear on a call |
| 9717 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9718 | can be generated via assembly. We want calls to | |
| 9719 | protected symbols to resolve directly to the function | |
| 9720 | rather than going via the plt. If people want function | |
| 9721 | pointer comparisons to work as expected then they should | |
| 9722 | avoid writing weird assembly. */ | |
| 9723 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9724 | { | |
| 57e7d118 AM |
9725 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9726 | { | |
| 9727 | p->count -= p->pc_count; | |
| 9728 | p->pc_count = 0; | |
| 9729 | if (p->count == 0) | |
| 9730 | *pp = p->next; | |
| 9731 | else | |
| 9732 | pp = &p->next; | |
| 9733 | } | |
| 9734 | } | |
| 65f38f15 | 9735 | |
| 954b63d4 | 9736 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 9737 | { |
| 46434633 AM |
9738 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9739 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9740 | return FALSE; |
| 5bd4f169 | 9741 | } |
| 65f38f15 | 9742 | } |
| 529fe20e | 9743 | else if (ELIMINATE_COPY_RELOCS && h->type != STT_GNU_IFUNC) |
| 57e7d118 | 9744 | { |
| 8a2058b5 | 9745 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9746 | symbols which turn out to need copy relocs or are not |
| 9747 | dynamic. */ | |
| 529fe20e AM |
9748 | if (h->dynamic_adjusted |
| 9749 | && !h->def_regular | |
| 9750 | && !ELF_COMMON_DEF_P (h)) | |
| f0158f44 | 9751 | { |
| 46434633 AM |
9752 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9753 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9754 | return FALSE; |
| dfbb6ac9 | 9755 | |
| f0158f44 AM |
9756 | if (h->dynindx == -1) |
| 9757 | eh->dyn_relocs = NULL; | |
| 9758 | } | |
| 9759 | else | |
| 8a2058b5 | 9760 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9761 | } |
| 9762 | ||
| 9763 | /* Finally, allocate space. */ | |
| 9764 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9765 | { | |
| 9766 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9767 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9768 | sreloc = htab->elf.irelplt; | |
| 9769 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9770 | } |
| 65f38f15 | 9771 | } |
| 57e7d118 AM |
9772 | |
| 9773 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9774 | && h->dynindx != -1) |
| 57e7d118 | 9775 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9776 | { |
| 57e7d118 AM |
9777 | struct plt_entry *pent; |
| 9778 | bfd_boolean doneone = FALSE; | |
| 9779 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9780 | if (pent->plt.refcount > 0) | |
| 9781 | { | |
| 9782 | if (!htab->elf.dynamic_sections_created | |
| 9783 | || h->dynindx == -1) | |
| 9784 | { | |
| 9785 | s = htab->elf.iplt; | |
| 9786 | pent->plt.offset = s->size; | |
| 9787 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9788 | s = htab->elf.irelplt; | |
| 9789 | } | |
| 9790 | else | |
| 9791 | { | |
| 9792 | /* If this is the first .plt entry, make room for the special | |
| 9793 | first entry. */ | |
| 9794 | s = htab->elf.splt; | |
| 9795 | if (s->size == 0) | |
| 9796 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9797 | |
| 57e7d118 | 9798 | pent->plt.offset = s->size; |
| 65f38f15 | 9799 | |
| 57e7d118 AM |
9800 | /* Make room for this entry. */ |
| 9801 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9802 | |
| 57e7d118 AM |
9803 | /* Make room for the .glink code. */ |
| 9804 | s = htab->glink; | |
| 9805 | if (s->size == 0) | |
| 9e390558 | 9806 | s->size += GLINK_PLTRESOLVE_SIZE (htab); |
| 57e7d118 AM |
9807 | if (htab->opd_abi) |
| 9808 | { | |
| 9809 | /* We need bigger stubs past index 32767. */ | |
| 9e390558 | 9810 | if (s->size >= GLINK_PLTRESOLVE_SIZE (htab) + 32768*2*4) |
| 57e7d118 AM |
9811 | s->size += 4; |
| 9812 | s->size += 2*4; | |
| 9813 | } | |
| 9814 | else | |
| 9815 | s->size += 4; | |
| 65f38f15 | 9816 | |
| 57e7d118 AM |
9817 | /* We also need to make an entry in the .rela.plt section. */ |
| 9818 | s = htab->elf.srelplt; | |
| 9819 | } | |
| 9820 | s->size += sizeof (Elf64_External_Rela); | |
| 9821 | doneone = TRUE; | |
| 9822 | } | |
| 9823 | else | |
| 9824 | pent->plt.offset = (bfd_vma) -1; | |
| 9825 | if (!doneone) | |
| 9826 | { | |
| 9827 | h->plt.plist = NULL; | |
| 9828 | h->needs_plt = 0; | |
| 9829 | } | |
| 65f38f15 | 9830 | } |
| 57e7d118 | 9831 | else |
| 65f38f15 | 9832 | { |
| 57e7d118 AM |
9833 | h->plt.plist = NULL; |
| 9834 | h->needs_plt = 0; | |
| 65f38f15 AM |
9835 | } |
| 9836 | ||
| b34976b6 | 9837 | return TRUE; |
| 65f38f15 AM |
9838 | } |
| 9839 | ||
| 9e390558 AM |
9840 | #define PPC_LO(v) ((v) & 0xffff) |
| 9841 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 9842 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 9843 | ||
| a345bc8d AM |
9844 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9845 | to set up space for global entry stubs. These are put in glink, | |
| 9846 | after the branch table. */ | |
| 65f38f15 | 9847 | |
| b34976b6 | 9848 | static bfd_boolean |
| a345bc8d | 9849 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9850 | { |
| a345bc8d AM |
9851 | struct bfd_link_info *info; |
| 9852 | struct ppc_link_hash_table *htab; | |
| 9853 | struct plt_entry *pent; | |
| 9e390558 | 9854 | asection *s, *plt; |
| 65f38f15 | 9855 | |
| a345bc8d AM |
9856 | if (h->root.type == bfd_link_hash_indirect) |
| 9857 | return TRUE; | |
| 65f38f15 | 9858 | |
| a345bc8d AM |
9859 | if (!h->pointer_equality_needed) |
| 9860 | return TRUE; | |
| 65f38f15 | 9861 | |
| a345bc8d AM |
9862 | if (h->def_regular) |
| 9863 | return TRUE; | |
| 65f38f15 | 9864 | |
| a345bc8d AM |
9865 | info = inf; |
| 9866 | htab = ppc_hash_table (info); | |
| 9867 | if (htab == NULL) | |
| 9868 | return FALSE; | |
| 9869 | ||
| 9e390558 AM |
9870 | s = htab->global_entry; |
| 9871 | plt = htab->elf.splt; | |
| a345bc8d AM |
9872 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 9873 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9874 | && pent->addend == 0) | |
| 9875 | { | |
| afe397ea AM |
9876 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9877 | and we are not generating a shared library or pie, then we | |
| 9878 | need to define the symbol in the executable on a call stub. | |
| 9879 | This is to avoid text relocations. */ | |
| 9e390558 AM |
9880 | bfd_vma off, stub_align, stub_off, stub_size; |
| 9881 | unsigned int align_power; | |
| 9882 | ||
| 9883 | stub_size = 16; | |
| 9884 | stub_off = s->size; | |
| 9885 | if (htab->params->plt_stub_align >= 0) | |
| 9886 | align_power = htab->params->plt_stub_align; | |
| 9887 | else | |
| 9888 | align_power = -htab->params->plt_stub_align; | |
| 9889 | /* Setting section alignment is delayed until we know it is | |
| 9890 | non-empty. Otherwise the .text output section will be | |
| 9891 | aligned at least to plt_stub_align even when no global | |
| 9892 | entry stubs are needed. */ | |
| 9893 | if (s->alignment_power < align_power) | |
| 9894 | s->alignment_power = align_power; | |
| 9895 | stub_align = (bfd_vma) 1 << align_power; | |
| 9896 | if (htab->params->plt_stub_align >= 0 | |
| 9897 | || ((((stub_off + stub_size - 1) & -stub_align) | |
| 9898 | - (stub_off & -stub_align)) | |
| 9899 | > ((stub_size - 1) & -stub_align))) | |
| 9900 | stub_off = (stub_off + stub_align - 1) & -stub_align; | |
| 9901 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; | |
| 9902 | off -= stub_off + s->output_offset + s->output_section->vma; | |
| 9903 | /* Note that for --plt-stub-align negative we have a possible | |
| 9904 | dependency between stub offset and size. Break that | |
| 9905 | dependency by assuming the max stub size when calculating | |
| 9906 | the stub offset. */ | |
| 9907 | if (PPC_HA (off) == 0) | |
| 9908 | stub_size -= 4; | |
| 8a2058b5 | 9909 | h->root.type = bfd_link_hash_defined; |
| afe397ea | 9910 | h->root.u.def.section = s; |
| 9e390558 AM |
9911 | h->root.u.def.value = stub_off; |
| 9912 | s->size = stub_off + stub_size; | |
| a345bc8d AM |
9913 | break; |
| 9914 | } | |
| 9915 | return TRUE; | |
| 9916 | } | |
| 9917 | ||
| 9918 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9919 | read-only sections. */ | |
| 9920 | ||
| 9921 | static bfd_boolean | |
| 98bbb1b8 | 9922 | maybe_set_textrel (struct elf_link_hash_entry *h, void *inf) |
| a345bc8d | 9923 | { |
| 98bbb1b8 AM |
9924 | asection *sec; |
| 9925 | ||
| a345bc8d AM |
9926 | if (h->root.type == bfd_link_hash_indirect) |
| 9927 | return TRUE; | |
| 9928 | ||
| 98bbb1b8 AM |
9929 | sec = readonly_dynrelocs (h); |
| 9930 | if (sec != NULL) | |
| a345bc8d | 9931 | { |
| 98bbb1b8 AM |
9932 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| 9933 | ||
| 9934 | info->flags |= DF_TEXTREL; | |
| 9935 | info->callbacks->minfo | |
| 871b3ab2 | 9936 | (_("%pB: dynamic relocation against `%T' in read-only section `%pA'\n"), |
| 63c1f59d | 9937 | sec->owner, h->root.root.string, sec); |
| a345bc8d AM |
9938 | |
| 9939 | /* Not an error, just cut short the traversal. */ | |
| 9940 | return FALSE; | |
| 65f38f15 | 9941 | } |
| b34976b6 | 9942 | return TRUE; |
| 65f38f15 AM |
9943 | } |
| 9944 | ||
| 9945 | /* Set the sizes of the dynamic sections. */ | |
| 9946 | ||
| b34976b6 | 9947 | static bfd_boolean |
| ee67d69a | 9948 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9949 | struct bfd_link_info *info) |
| 65f38f15 AM |
9950 | { |
| 9951 | struct ppc_link_hash_table *htab; | |
| 9952 | bfd *dynobj; | |
| 9953 | asection *s; | |
| b34976b6 | 9954 | bfd_boolean relocs; |
| 65f38f15 | 9955 | bfd *ibfd; |
| 7865406b | 9956 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9957 | |
| 9958 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9959 | if (htab == NULL) |
| 9960 | return FALSE; | |
| 9961 | ||
| 65f38f15 AM |
9962 | dynobj = htab->elf.dynobj; |
| 9963 | if (dynobj == NULL) | |
| 9964 | abort (); | |
| 9965 | ||
| 9966 | if (htab->elf.dynamic_sections_created) | |
| 9967 | { | |
| 9968 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9969 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9970 | { |
| 3d4d4302 | 9971 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9972 | if (s == NULL) |
| 9973 | abort (); | |
| eea6121a | 9974 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9975 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9976 | } | |
| 9977 | } | |
| 9978 | ||
| 9979 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9980 | relocs. */ | |
| c72f2fb2 | 9981 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9982 | { |
| 411e1bfb AM |
9983 | struct got_entry **lgot_ents; |
| 9984 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9985 | struct plt_entry **local_plt; |
| 9986 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9987 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9988 | bfd_size_type locsymcount; |
| 9989 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9990 | |
| 0c8d6e5c | 9991 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9992 | continue; |
| 9993 | ||
| 9994 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9995 | { | |
| 19e08130 | 9996 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9997 | |
| 6edfbbad | 9998 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9999 | { |
| ec338859 AM |
10000 | if (!bfd_is_abs_section (p->sec) |
| 10001 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10002 | { | |
| 10003 | /* Input section has been discarded, either because | |
| 10004 | it is a copy of a linkonce section or due to | |
| 10005 | linker script /DISCARD/, so we'll be discarding | |
| 10006 | the relocs too. */ | |
| 10007 | } | |
| 248866a8 | 10008 | else if (p->count != 0) |
| ec338859 | 10009 | { |
| 19e08130 AM |
10010 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10011 | if (p->ifunc) | |
| 33e44f2e | 10012 | srel = htab->elf.irelplt; |
| eea6121a | 10013 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10014 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10015 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10016 | } |
| 65f38f15 AM |
10017 | } |
| 10018 | } | |
| 10019 | ||
| 411e1bfb AM |
10020 | lgot_ents = elf_local_got_ents (ibfd); |
| 10021 | if (!lgot_ents) | |
| 65f38f15 AM |
10022 | continue; |
| 10023 | ||
| 0ffa91dd | 10024 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10025 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10026 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10027 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10028 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10029 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10030 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10031 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10032 | { |
| 0b8bcf0d | 10033 | struct got_entry **pent, *ent; |
| 411e1bfb | 10034 | |
| 0b8bcf0d AM |
10035 | pent = lgot_ents; |
| 10036 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10037 | if (ent->got.refcount > 0) |
| 10038 | { | |
| e7b938ca | 10039 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10040 | { |
| 927be08e | 10041 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10042 | *pent = ent->next; |
| 411e1bfb AM |
10043 | } |
| 10044 | else | |
| 10045 | { | |
| 19e08130 AM |
10046 | unsigned int ent_size = 8; |
| 10047 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10048 | ||
| eea6121a | 10049 | ent->got.offset = s->size; |
| e7b938ca | 10050 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10051 | { |
| 19e08130 AM |
10052 | ent_size *= 2; |
| 10053 | rel_size *= 2; | |
| 10054 | } | |
| 10055 | s->size += ent_size; | |
| 10056 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10057 | { | |
| 33e44f2e | 10058 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10059 | htab->got_reli_size += rel_size; |
| 10060 | } | |
| f15d0b54 AM |
10061 | else if (bfd_link_pic (info) |
| 10062 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 10063 | && bfd_link_executable (info))) | |
| 19e08130 AM |
10064 | { |
| 10065 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10066 | srel->size += rel_size; | |
| 927be08e | 10067 | } |
| 0b8bcf0d | 10068 | pent = &ent->next; |
| 411e1bfb AM |
10069 | } |
| 10070 | } | |
| 10071 | else | |
| 0b8bcf0d | 10072 | *pent = ent->next; |
| 65f38f15 | 10073 | } |
| e054468f AM |
10074 | |
| 10075 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10076 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10077 | { | |
| 10078 | struct plt_entry *ent; | |
| 10079 | ||
| 10080 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10081 | if (ent->plt.refcount > 0) | |
| 10082 | { | |
| 33e44f2e | 10083 | s = htab->elf.iplt; |
| e054468f | 10084 | ent->plt.offset = s->size; |
| b9e5796b | 10085 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10086 | |
| 33e44f2e | 10087 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10088 | } |
| 10089 | else | |
| 10090 | ent->plt.offset = (bfd_vma) -1; | |
| 10091 | } | |
| 65f38f15 AM |
10092 | } |
| 10093 | ||
| 10094 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10095 | sym dynamic relocs. */ | |
| 4ce794b7 | 10096 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d | 10097 | |
| 0e1862bb | 10098 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10099 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10100 | |
| 7865406b | 10101 | first_tlsld = NULL; |
| c72f2fb2 | 10102 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10103 | { |
| 7865406b AM |
10104 | struct got_entry *ent; |
| 10105 | ||
| 0c8d6e5c | 10106 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10107 | continue; |
| 10108 | ||
| 7865406b AM |
10109 | ent = ppc64_tlsld_got (ibfd); |
| 10110 | if (ent->got.refcount > 0) | |
| 102890f0 | 10111 | { |
| 7865406b | 10112 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10113 | { |
| 7865406b AM |
10114 | ent->is_indirect = TRUE; |
| 10115 | ent->got.ent = first_tlsld; | |
| 10116 | } | |
| 10117 | else | |
| 10118 | { | |
| 10119 | if (first_tlsld == NULL) | |
| 10120 | first_tlsld = ent; | |
| 10121 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10122 | ent->got.offset = s->size; | |
| 10123 | ent->owner = ibfd; | |
| 10124 | s->size += 16; | |
| 0e1862bb | 10125 | if (bfd_link_pic (info)) |
| 7865406b AM |
10126 | { |
| 10127 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10128 | srel->size += sizeof (Elf64_External_Rela); | |
| 10129 | } | |
| 102890f0 AM |
10130 | } |
| 10131 | } | |
| 10132 | else | |
| 7865406b | 10133 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10134 | } |
| 10135 | ||
| 65f38f15 AM |
10136 | /* We now have determined the sizes of the various dynamic sections. |
| 10137 | Allocate memory for them. */ | |
| b34976b6 | 10138 | relocs = FALSE; |
| 65f38f15 AM |
10139 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10140 | { | |
| 10141 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10142 | continue; | |
| 10143 | ||
| 4ce794b7 | 10144 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10145 | /* These haven't been allocated yet; don't strip. */ |
| 10146 | continue; | |
| 33e44f2e AM |
10147 | else if (s == htab->elf.sgot |
| 10148 | || s == htab->elf.splt | |
| 10149 | || s == htab->elf.iplt | |
| c456f082 | 10150 | || s == htab->glink |
| 9e390558 | 10151 | || s == htab->global_entry |
| 5474d94f AM |
10152 | || s == htab->elf.sdynbss |
| 10153 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10154 | { |
| 10155 | /* Strip this section if we don't need it; see the | |
| 10156 | comment below. */ | |
| 5bd4f169 | 10157 | } |
| 58d180e8 AM |
10158 | else if (s == htab->glink_eh_frame) |
| 10159 | { | |
| 10160 | if (!bfd_is_abs_section (s->output_section)) | |
| 10161 | /* Not sized yet. */ | |
| 10162 | continue; | |
| 10163 | } | |
| 70cc837d | 10164 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10165 | { |
| c456f082 | 10166 | if (s->size != 0) |
| 5bd4f169 | 10167 | { |
| 33e44f2e | 10168 | if (s != htab->elf.srelplt) |
| b34976b6 | 10169 | relocs = TRUE; |
| 5bd4f169 AM |
10170 | |
| 10171 | /* We use the reloc_count field as a counter if we need | |
| 10172 | to copy relocs into the output file. */ | |
| 10173 | s->reloc_count = 0; | |
| 10174 | } | |
| 10175 | } | |
| 65f38f15 | 10176 | else |
| 5bd4f169 AM |
10177 | { |
| 10178 | /* It's not one of our sections, so don't allocate space. */ | |
| 10179 | continue; | |
| 10180 | } | |
| 10181 | ||
| eea6121a | 10182 | if (s->size == 0) |
| 5bd4f169 | 10183 | { |
| c456f082 AM |
10184 | /* If we don't need this section, strip it from the |
| 10185 | output file. This is mostly to handle .rela.bss and | |
| 10186 | .rela.plt. We must create both sections in | |
| 10187 | create_dynamic_sections, because they must be created | |
| 10188 | before the linker maps input sections to output | |
| 10189 | sections. The linker does that before | |
| 10190 | adjust_dynamic_symbol is called, and it is that | |
| 10191 | function which decides whether anything needs to go | |
| 10192 | into these sections. */ | |
| 8423293d | 10193 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10194 | continue; |
| 10195 | } | |
| 10196 | ||
| 06bcf541 AM |
10197 | if (bfd_is_abs_section (s->output_section)) |
| 10198 | _bfd_error_handler (_("warning: discarding dynamic section %s"), | |
| 10199 | s->name); | |
| 10200 | ||
| c456f082 | 10201 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10202 | continue; |
| 10203 | ||
| 65f38f15 AM |
10204 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10205 | here in case unused entries are not reclaimed before the | |
| 10206 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10207 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10208 | sections instead of garbage. | |
| 10209 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10210 | the GOT and .dynrelro. */ |
| eea6121a | 10211 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10212 | if (s->contents == NULL) |
| b34976b6 | 10213 | return FALSE; |
| 5bd4f169 AM |
10214 | } |
| 10215 | ||
| c72f2fb2 | 10216 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10217 | { |
| 0c8d6e5c | 10218 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10219 | continue; |
| 10220 | ||
| e717da7e | 10221 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10222 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10223 | { |
| eea6121a | 10224 | if (s->size == 0) |
| 8423293d | 10225 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10226 | else |
| 10227 | { | |
| eea6121a | 10228 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10229 | if (s->contents == NULL) |
| 10230 | return FALSE; | |
| 10231 | } | |
| 10232 | } | |
| 10233 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10234 | if (s != NULL) | |
| 10235 | { | |
| eea6121a | 10236 | if (s->size == 0) |
| 8423293d | 10237 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10238 | else |
| 10239 | { | |
| eea6121a | 10240 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10241 | if (s->contents == NULL) |
| 10242 | return FALSE; | |
| 10243 | relocs = TRUE; | |
| 10244 | s->reloc_count = 0; | |
| 10245 | } | |
| 10246 | } | |
| 10247 | } | |
| 10248 | ||
| e86ce104 | 10249 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10250 | { |
| e8910a83 AM |
10251 | bfd_boolean tls_opt; |
| 10252 | ||
| 5bd4f169 AM |
10253 | /* Add some entries to the .dynamic section. We fill in the |
| 10254 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10255 | must add the entries now so that we get the correct size for | |
| 10256 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10257 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10258 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10259 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10260 | |
| 0e1862bb | 10261 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10262 | { |
| dc810e39 | 10263 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10264 | return FALSE; |
| 5bd4f169 AM |
10265 | } |
| 10266 | ||
| 33e44f2e | 10267 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10268 | { |
| dc810e39 AM |
10269 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10270 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10271 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10272 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10273 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10274 | return FALSE; |
| 5bd4f169 AM |
10275 | } |
| 10276 | ||
| ee67d69a | 10277 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10278 | { |
| 10279 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10280 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10281 | return FALSE; |
| 19397422 AM |
10282 | } |
| 10283 | ||
| 7c9cf415 | 10284 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10285 | && htab->tls_get_addr_fd != NULL |
| 10286 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10287 | if (tls_opt || !htab->opd_abi) | |
| 10288 | { | |
| 10289 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10290 | return FALSE; | |
| 10291 | } | |
| a7f2871e | 10292 | |
| 5bd4f169 AM |
10293 | if (relocs) |
| 10294 | { | |
| dc810e39 AM |
10295 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10296 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10297 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10298 | return FALSE; |
| 5bd4f169 | 10299 | |
| 65f38f15 AM |
10300 | /* If any dynamic relocs apply to a read-only section, |
| 10301 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10302 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10303 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10304 | |
| 65f38f15 | 10305 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10306 | { |
| 65f38f15 | 10307 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10308 | return FALSE; |
| 5bd4f169 | 10309 | } |
| 5bd4f169 | 10310 | } |
| 5bd4f169 | 10311 | } |
| 65f38f15 | 10312 | #undef add_dynamic_entry |
| 5bd4f169 | 10313 | |
| b34976b6 | 10314 | return TRUE; |
| 5bd4f169 AM |
10315 | } |
| 10316 | ||
| a345bc8d AM |
10317 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10318 | ||
| 10319 | static bfd_boolean | |
| 10320 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10321 | { | |
| 10322 | if (h->plt.plist != NULL | |
| 10323 | && !h->def_regular | |
| 10324 | && !h->pointer_equality_needed) | |
| 10325 | return FALSE; | |
| 10326 | ||
| 10327 | return _bfd_elf_hash_symbol (h); | |
| 10328 | } | |
| 10329 | ||
| 721956f4 | 10330 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10331 | |
| 4ce794b7 AM |
10332 | static inline enum ppc_stub_type |
| 10333 | ppc_type_of_stub (asection *input_sec, | |
| 10334 | const Elf_Internal_Rela *rel, | |
| 10335 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10336 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10337 | bfd_vma destination, |
| 10338 | unsigned long local_off) | |
| 5bd4f169 | 10339 | { |
| 721956f4 AM |
10340 | struct ppc_link_hash_entry *h = *hash; |
| 10341 | bfd_vma location; | |
| 10342 | bfd_vma branch_offset; | |
| 10343 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10344 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10345 | |
| 721956f4 AM |
10346 | if (h != NULL) |
| 10347 | { | |
| e054468f | 10348 | struct plt_entry *ent; |
| 7fe2b9a6 | 10349 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10350 | if (h->oh != NULL |
| 10351 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10352 | { |
| 10353 | fdh = ppc_follow_link (h->oh); | |
| 10354 | *hash = fdh; | |
| 10355 | } | |
| 8387904d | 10356 | |
| e054468f AM |
10357 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10358 | if (ent->addend == rel->r_addend | |
| 10359 | && ent->plt.offset != (bfd_vma) -1) | |
| 10360 | { | |
| e054468f AM |
10361 | *plt_ent = ent; |
| 10362 | return ppc_stub_plt_call; | |
| 10363 | } | |
| 5bd4f169 | 10364 | |
| 7fe2b9a6 AM |
10365 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10366 | either a defined function descriptor or a defined entry symbol | |
| 10367 | in a regular object file, then it is pointless trying to make | |
| 10368 | any other type of stub. */ | |
| 854b41e7 AM |
10369 | if (!is_static_defined (&fdh->elf) |
| 10370 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10371 | return ppc_stub_none; |
| 5d1634d7 | 10372 | } |
| e054468f AM |
10373 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10374 | { | |
| 10375 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10376 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10377 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10378 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10379 | ||
| 10380 | if (local_plt[r_symndx] != NULL) | |
| 10381 | { | |
| 10382 | struct plt_entry *ent; | |
| 10383 | ||
| 10384 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10385 | if (ent->addend == rel->r_addend | |
| 10386 | && ent->plt.offset != (bfd_vma) -1) | |
| 10387 | { | |
| 10388 | *plt_ent = ent; | |
| 10389 | return ppc_stub_plt_call; | |
| 10390 | } | |
| 10391 | } | |
| 10392 | } | |
| 5d1634d7 | 10393 | |
| 721956f4 AM |
10394 | /* Determine where the call point is. */ |
| 10395 | location = (input_sec->output_offset | |
| 10396 | + input_sec->output_section->vma | |
| 10397 | + rel->r_offset); | |
| 5d1634d7 | 10398 | |
| 721956f4 AM |
10399 | branch_offset = destination - location; |
| 10400 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10401 | |
| 721956f4 AM |
10402 | /* Determine if a long branch stub is needed. */ |
| 10403 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10404 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10405 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10406 | |
| 6911b7dc | 10407 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10408 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10409 | is needed later. */ | |
| 10410 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10411 | |
| 721956f4 | 10412 | return ppc_stub_none; |
| 5d1634d7 AM |
10413 | } |
| 10414 | ||
| 794e51c0 AM |
10415 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10416 | to update a plt entry in one thread and have another thread see a | |
| 10417 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10418 | barrier in the call stub. One solution is to make the load of the | |
| 10419 | toc word seem to appear to depend on the load of the function entry | |
| 10420 | word. Another solution is to test for r2 being zero, and branch to | |
| 10421 | the appropriate glink entry if so. | |
| 10422 | ||
| 10423 | . fake dep barrier compare | |
| 71a39c98 AM |
10424 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10425 | . mtctr 12 mtctr 12 | |
| 10426 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10427 | . add 2,2,11 cmpldi 2,0 |
| 10428 | . ld 2,xxx+8(2) bnectr+ | |
| 10429 | . bctr b <glink_entry> | |
| 10430 | ||
| 10431 | The solution involving the compare turns out to be faster, so | |
| 10432 | that's what we use unless the branch won't reach. */ | |
| 10433 | ||
| 10434 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10435 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10436 | |
| 794e51c0 AM |
10437 | static inline unsigned int |
| 10438 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10439 | struct ppc_stub_hash_entry *stub_entry, | |
| 10440 | bfd_vma off) | |
| 10441 | { | |
| b9e5796b AM |
10442 | unsigned size = 12; |
| 10443 | ||
| 10444 | if (ALWAYS_EMIT_R2SAVE | |
| 10445 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10446 | size += 4; | |
| 10447 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10448 | size += 4; |
| b9e5796b AM |
10449 | if (htab->opd_abi) |
| 10450 | { | |
| 10451 | size += 4; | |
| e7d1c40c | 10452 | if (htab->params->plt_static_chain) |
| b9e5796b | 10453 | size += 4; |
| bd4d2eaa AM |
10454 | if (htab->params->plt_thread_safe |
| 10455 | && htab->elf.dynamic_sections_created | |
| 10456 | && stub_entry->h != NULL | |
| 10457 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10458 | size += 8; |
| e7d1c40c | 10459 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10460 | size += 4; |
| 10461 | } | |
| 794e51c0 AM |
10462 | if (stub_entry->h != NULL |
| 10463 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10464 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10465 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10466 | { |
| 10467 | size += 7 * 4; | |
| 10468 | if (ALWAYS_EMIT_R2SAVE | |
| 10469 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 407aa07c | 10470 | size += 6 * 4; |
| f378ab09 | 10471 | } |
| 794e51c0 AM |
10472 | return size; |
| 10473 | } | |
| 10474 | ||
| 2420fff6 AM |
10475 | /* Depending on the sign of plt_stub_align: |
| 10476 | If positive, return the padding to align to a 2**plt_stub_align | |
| 10477 | boundary. | |
| 10478 | If negative, if this stub would cross fewer 2**plt_stub_align | |
| 10479 | boundaries if we align, then return the padding needed to do so. */ | |
| 10480 | ||
| 794e51c0 AM |
10481 | static inline unsigned int |
| 10482 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10483 | struct ppc_stub_hash_entry *stub_entry, | |
| 10484 | bfd_vma plt_off) | |
| 10485 | { | |
| 2420fff6 | 10486 | int stub_align; |
| 794e51c0 | 10487 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10488 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 | 10489 | |
| 2420fff6 AM |
10490 | if (htab->params->plt_stub_align >= 0) |
| 10491 | { | |
| 10492 | stub_align = 1 << htab->params->plt_stub_align; | |
| 10493 | if ((stub_off & (stub_align - 1)) != 0) | |
| 10494 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10495 | return 0; | |
| 10496 | } | |
| 10497 | ||
| 10498 | stub_align = 1 << -htab->params->plt_stub_align; | |
| 794e51c0 | 10499 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) |
| e05fa0ba | 10500 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10501 | return stub_align - (stub_off & (stub_align - 1)); |
| 10502 | return 0; | |
| 10503 | } | |
| 10504 | ||
| 10505 | /* Build a .plt call stub. */ | |
| 10506 | ||
| 10507 | static inline bfd_byte * | |
| 10508 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10509 | struct ppc_stub_hash_entry *stub_entry, | |
| 10510 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10511 | { | |
| e7d1c40c | 10512 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10513 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10514 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10515 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10516 | && htab->elf.dynamic_sections_created | |
| 10517 | && stub_entry->h != NULL | |
| 10518 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10519 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10520 | bfd_vma cmp_branch_off = 0; | |
| 10521 | ||
| 10522 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10523 | && plt_load_toc |
| 794e51c0 | 10524 | && plt_thread_safe |
| bd4d2eaa AM |
10525 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10526 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10527 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10528 | { |
| 10529 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10530 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10531 | / PLT_ENTRY_SIZE (htab)); | |
| 9e390558 | 10532 | bfd_vma glinkoff = GLINK_PLTRESOLVE_SIZE (htab) + pltindex * 8; |
| 794e51c0 AM |
10533 | bfd_vma to, from; |
| 10534 | ||
| 68d62958 AM |
10535 | if (pltindex > 32768) |
| 10536 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10537 | to = (glinkoff |
| 10538 | + htab->glink->output_offset | |
| 10539 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10540 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10541 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10542 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10543 | + 4 * (PPC_HA (offset) != 0) | |
| 10544 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10545 | != PPC_HA (offset)) | |
| 10546 | + 4 * (plt_static_chain != 0) | |
| 10547 | + 20 | |
| 6f20ed8a AM |
10548 | + stub_entry->group->stub_sec->output_offset |
| 10549 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10550 | cmp_branch_off = to - from; |
| 10551 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10552 | } | |
| 10553 | ||
| ac2df442 AM |
10554 | if (PPC_HA (offset) != 0) |
| 10555 | { | |
| 176a0d42 AM |
10556 | if (r != NULL) |
| 10557 | { | |
| 794e51c0 AM |
10558 | if (ALWAYS_EMIT_R2SAVE |
| 10559 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10560 | r[0].r_offset += 4; | |
| 176a0d42 | 10561 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10562 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10563 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10564 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10565 | if (plt_load_toc) |
| 176a0d42 | 10566 | { |
| b9e5796b | 10567 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10568 | { |
| b9e5796b AM |
10569 | r[2].r_offset = r[1].r_offset + 4; |
| 10570 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10571 | r[2].r_addend = r[0].r_addend; | |
| 10572 | } | |
| 10573 | else | |
| 10574 | { | |
| 10575 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10576 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10577 | r[2].r_addend = r[0].r_addend + 8; | |
| 10578 | if (plt_static_chain) | |
| 10579 | { | |
| 10580 | r[3].r_offset = r[2].r_offset + 4; | |
| 10581 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10582 | r[3].r_addend = r[0].r_addend + 16; | |
| 10583 | } | |
| c7131b65 | 10584 | } |
| 176a0d42 AM |
10585 | } |
| 10586 | } | |
| 794e51c0 AM |
10587 | if (ALWAYS_EMIT_R2SAVE |
| 10588 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10589 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10590 | if (plt_load_toc) |
| 10591 | { | |
| 10592 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10593 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10594 | } | |
| 10595 | else | |
| 10596 | { | |
| 10597 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10598 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10599 | } | |
| b9e5796b AM |
10600 | if (plt_load_toc |
| 10601 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10602 | { |
| 71a39c98 | 10603 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10604 | offset = 0; |
| 10605 | } | |
| 71a39c98 | 10606 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10607 | if (plt_load_toc) |
| 794e51c0 | 10608 | { |
| b9e5796b AM |
10609 | if (use_fake_dep) |
| 10610 | { | |
| 10611 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10612 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10613 | } | |
| 10614 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10615 | if (plt_static_chain) | |
| 10616 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10617 | } |
| ac2df442 AM |
10618 | } |
| 10619 | else | |
| 10620 | { | |
| 176a0d42 AM |
10621 | if (r != NULL) |
| 10622 | { | |
| 794e51c0 AM |
10623 | if (ALWAYS_EMIT_R2SAVE |
| 10624 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10625 | r[0].r_offset += 4; | |
| 176a0d42 | 10626 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10627 | if (plt_load_toc) |
| 176a0d42 | 10628 | { |
| b9e5796b | 10629 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10630 | { |
| b9e5796b AM |
10631 | r[1].r_offset = r[0].r_offset + 4; |
| 10632 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10633 | r[1].r_addend = r[0].r_addend; | |
| 10634 | } | |
| 10635 | else | |
| 10636 | { | |
| 10637 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10638 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10639 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10640 | if (plt_static_chain) | |
| 10641 | { | |
| 10642 | r[2].r_offset = r[1].r_offset + 4; | |
| 10643 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10644 | r[2].r_addend = r[0].r_addend + 8; | |
| 10645 | } | |
| c7131b65 | 10646 | } |
| 176a0d42 AM |
10647 | } |
| 10648 | } | |
| 794e51c0 AM |
10649 | if (ALWAYS_EMIT_R2SAVE |
| 10650 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10651 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10652 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10653 | if (plt_load_toc |
| 10654 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10655 | { |
| 10656 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10657 | offset = 0; | |
| 10658 | } | |
| 71a39c98 | 10659 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10660 | if (plt_load_toc) |
| 794e51c0 | 10661 | { |
| b9e5796b AM |
10662 | if (use_fake_dep) |
| 10663 | { | |
| 10664 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10665 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10666 | } | |
| 10667 | if (plt_static_chain) | |
| 10668 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10669 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10670 | } |
| ac2df442 | 10671 | } |
| b9e5796b | 10672 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10673 | { |
| 10674 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10675 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10676 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10677 | } |
| 10678 | else | |
| 407aa07c | 10679 | bfd_put_32 (obfd, BCTR, p), p += 4; |
| 5d1634d7 AM |
10680 | return p; |
| 10681 | } | |
| 10682 | ||
| a7f2871e AM |
10683 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10684 | ||
| 10685 | #define LD_R11_0R3 0xe9630000 | |
| 10686 | #define LD_R12_0R3 0xe9830000 | |
| 10687 | #define MR_R0_R3 0x7c601b78 | |
| 10688 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10689 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10690 | #define BEQLR 0x4d820020 | |
| 10691 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10692 | #define STD_R11_0R1 0xf9610000 |
| 10693 | #define BCTRL 0x4e800421 | |
| 10694 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10695 | #define MTLR_R11 0x7d6803a6 |
| 10696 | ||
| 10697 | static inline bfd_byte * | |
| 794e51c0 AM |
10698 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10699 | struct ppc_stub_hash_entry *stub_entry, | |
| 10700 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10701 | { |
| e7d1c40c | 10702 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10703 | |
| a7f2871e AM |
10704 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10705 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10706 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10707 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10708 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10709 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10710 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
10711 | if (r != NULL) |
| 10712 | r[0].r_offset += 7 * 4; | |
| 10713 | if (!ALWAYS_EMIT_R2SAVE | |
| 10714 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 10715 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 10716 | ||
| a7f2871e | 10717 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 10718 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10719 | |
| 10720 | if (r != NULL) | |
| f378ab09 | 10721 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 10722 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| 407aa07c | 10723 | bfd_put_32 (obfd, BCTRL, p - 4); |
| a7f2871e | 10724 | |
| a078d95a | 10725 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10726 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10727 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10728 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10729 | ||
| 10730 | return p; | |
| 10731 | } | |
| 10732 | ||
| 176a0d42 AM |
10733 | static Elf_Internal_Rela * |
| 10734 | get_relocs (asection *sec, int count) | |
| 10735 | { | |
| 10736 | Elf_Internal_Rela *relocs; | |
| 10737 | struct bfd_elf_section_data *elfsec_data; | |
| 10738 | ||
| 10739 | elfsec_data = elf_section_data (sec); | |
| 10740 | relocs = elfsec_data->relocs; | |
| 10741 | if (relocs == NULL) | |
| 10742 | { | |
| 10743 | bfd_size_type relsize; | |
| 10744 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10745 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10746 | if (relocs == NULL) | |
| 10747 | return NULL; | |
| 10748 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10749 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10750 | sizeof (Elf_Internal_Shdr)); | |
| 10751 | if (elfsec_data->rela.hdr == NULL) | |
| 10752 | return NULL; | |
| 10753 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10754 | * sizeof (Elf64_External_Rela)); | |
| 10755 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10756 | sec->reloc_count = 0; |
| 10757 | } | |
| 10758 | relocs += sec->reloc_count; | |
| 10759 | sec->reloc_count += count; | |
| 10760 | return relocs; | |
| 10761 | } | |
| 10762 | ||
| aa374f67 | 10763 | static bfd_vma |
| 25f53a85 | 10764 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10765 | struct ppc_stub_hash_entry *stub_entry) |
| 10766 | { | |
| 25f53a85 | 10767 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10768 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10769 | |
| 10770 | if (r2off == 0) | |
| 10771 | { | |
| 10772 | /* Support linking -R objects. Get the toc pointer from the | |
| 10773 | opd entry. */ | |
| 10774 | char buf[8]; | |
| b9e5796b AM |
10775 | if (!htab->opd_abi) |
| 10776 | return r2off; | |
| aa374f67 AM |
10777 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10778 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10779 | ||
| 10780 | if (strcmp (opd->name, ".opd") != 0 | |
| 10781 | || opd->reloc_count != 0) | |
| 10782 | { | |
| bc30df16 | 10783 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10784 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10785 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10786 | return (bfd_vma) -1; |
| aa374f67 AM |
10787 | } |
| 10788 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10789 | return (bfd_vma) -1; |
| aa374f67 | 10790 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10791 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10792 | } |
| 6f20ed8a | 10793 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10794 | return r2off; |
| 10795 | } | |
| 10796 | ||
| b34976b6 | 10797 | static bfd_boolean |
| 4ce794b7 | 10798 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10799 | { |
| 721956f4 AM |
10800 | struct ppc_stub_hash_entry *stub_entry; |
| 10801 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10802 | struct bfd_link_info *info; |
| 10803 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10804 | bfd_byte *loc; |
| 10805 | bfd_byte *p; | |
| ee75fd95 | 10806 | bfd_vma dest, off; |
| 176a0d42 | 10807 | Elf_Internal_Rela *r; |
| e054468f | 10808 | asection *plt; |
| 5d1634d7 | 10809 | |
| 721956f4 AM |
10810 | /* Massage our args to the form they really have. */ |
| 10811 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10812 | info = in_arg; |
| 5d1634d7 | 10813 | |
| 5d1634d7 | 10814 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10815 | if (htab == NULL) |
| 10816 | return FALSE; | |
| 5d1634d7 | 10817 | |
| 721956f4 | 10818 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10819 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10820 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10821 | |
| 4ce794b7 | 10822 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10823 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10824 | { |
| 721956f4 | 10825 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10826 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10827 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10828 | dest = (stub_entry->target_value |
| 10829 | + stub_entry->target_section->output_offset | |
| 10830 | + stub_entry->target_section->output_section->vma); | |
| 10831 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10832 | off = dest; | |
| 5d1634d7 | 10833 | |
| 721956f4 AM |
10834 | /* And this is where we are coming from. */ |
| 10835 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10836 | + stub_entry->group->stub_sec->output_offset |
| 10837 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10838 | |
| 9e390558 | 10839 | p = loc; |
| ac2df442 | 10840 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) |
| ad8e1ba5 | 10841 | { |
| 25f53a85 | 10842 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10843 | |
| a7c49797 | 10844 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10845 | { |
| 10846 | htab->stub_error = TRUE; | |
| 10847 | return FALSE; | |
| 10848 | } | |
| 9e390558 AM |
10849 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 10850 | p += 4; | |
| ac2df442 AM |
10851 | if (PPC_HA (r2off) != 0) |
| 10852 | { | |
| e7d1c40c | 10853 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
10854 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 10855 | p += 4; | |
| a7c49797 AM |
10856 | } |
| 10857 | if (PPC_LO (r2off) != 0) | |
| 10858 | { | |
| 10859 | bfd_put_32 (htab->params->stub_bfd, | |
| 9e390558 AM |
10860 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| 10861 | p += 4; | |
| ac2df442 | 10862 | } |
| 9e390558 | 10863 | off -= p - loc; |
| ad8e1ba5 | 10864 | } |
| 9e390558 AM |
10865 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), p); |
| 10866 | p += 4; | |
| ad8e1ba5 | 10867 | |
| 5c3dead3 AM |
10868 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10869 | { | |
| bc30df16 AM |
10870 | info->callbacks->einfo |
| 10871 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10872 | stub_entry->root.string); | |
| 5c3dead3 AM |
10873 | htab->stub_error = TRUE; |
| 10874 | return FALSE; | |
| 10875 | } | |
| ee75fd95 AM |
10876 | |
| 10877 | if (info->emitrelocations) | |
| 10878 | { | |
| 6f20ed8a | 10879 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10880 | if (r == NULL) |
| 10881 | return FALSE; | |
| 9e390558 | 10882 | r->r_offset = p - 4 - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10883 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10884 | r->r_addend = dest; | |
| 10885 | if (stub_entry->h != NULL) | |
| 10886 | { | |
| 10887 | struct elf_link_hash_entry **hashes; | |
| 10888 | unsigned long symndx; | |
| 10889 | struct ppc_link_hash_entry *h; | |
| 10890 | ||
| e7d1c40c | 10891 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10892 | if (hashes == NULL) |
| 10893 | { | |
| 10894 | bfd_size_type hsize; | |
| 10895 | ||
| 10896 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10897 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10898 | if (hashes == NULL) |
| 10899 | return FALSE; | |
| e7d1c40c | 10900 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10901 | htab->stub_globals = 1; |
| 10902 | } | |
| 10903 | symndx = htab->stub_globals++; | |
| 10904 | h = stub_entry->h; | |
| 10905 | hashes[symndx] = &h->elf; | |
| 10906 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10907 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10908 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10909 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10910 | /* H is an opd symbol. The addend must be zero. */ | |
| 10911 | r->r_addend = 0; | |
| 10912 | else | |
| 10913 | { | |
| 10914 | off = (h->elf.root.u.def.value | |
| 10915 | + h->elf.root.u.def.section->output_offset | |
| 10916 | + h->elf.root.u.def.section->output_section->vma); | |
| 10917 | r->r_addend -= off; | |
| 10918 | } | |
| 10919 | } | |
| 10920 | } | |
| 721956f4 | 10921 | break; |
| e86ce104 | 10922 | |
| 721956f4 | 10923 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10924 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10925 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10926 | stub_entry->root.string + 9, | |
| b34976b6 | 10927 | FALSE, FALSE); |
| 721956f4 AM |
10928 | if (br_entry == NULL) |
| 10929 | { | |
| 8de848d8 | 10930 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10931 | stub_entry->root.string); |
| b34976b6 AM |
10932 | htab->stub_error = TRUE; |
| 10933 | return FALSE; | |
| 721956f4 AM |
10934 | } |
| 10935 | ||
| 176a0d42 AM |
10936 | dest = (stub_entry->target_value |
| 10937 | + stub_entry->target_section->output_offset | |
| 10938 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10939 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10940 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10941 | |
| 176a0d42 | 10942 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10943 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10944 | |
| f94498ff | 10945 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10946 | { |
| f94498ff | 10947 | br_entry->iter = 0; |
| 84f5d08e | 10948 | |
| f94498ff | 10949 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10950 | { |
| f94498ff AM |
10951 | /* Create a reloc for the branch lookup table entry. */ |
| 10952 | Elf_Internal_Rela rela; | |
| 10953 | bfd_byte *rl; | |
| 10954 | ||
| 10955 | rela.r_offset = (br_entry->offset | |
| 10956 | + htab->brlt->output_offset | |
| 10957 | + htab->brlt->output_section->vma); | |
| 10958 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10959 | rela.r_addend = dest; |
| f94498ff AM |
10960 | |
| 10961 | rl = htab->relbrlt->contents; | |
| 10962 | rl += (htab->relbrlt->reloc_count++ | |
| 10963 | * sizeof (Elf64_External_Rela)); | |
| 10964 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10965 | } | |
| 10966 | else if (info->emitrelocations) | |
| 10967 | { | |
| 176a0d42 AM |
10968 | r = get_relocs (htab->brlt, 1); |
| 10969 | if (r == NULL) | |
| 10970 | return FALSE; | |
| 10971 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10972 | normal reloc processing. Symbols and offsets are not | |
| 10973 | translated from input file to output file form, so | |
| 10974 | set up the offset per the output file. */ | |
| f94498ff AM |
10975 | r->r_offset = (br_entry->offset |
| 10976 | + htab->brlt->output_offset | |
| 10977 | + htab->brlt->output_section->vma); | |
| 10978 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10979 | r->r_addend = dest; |
| 84f5d08e | 10980 | } |
| 84f5d08e | 10981 | } |
| 721956f4 | 10982 | |
| 176a0d42 AM |
10983 | dest = (br_entry->offset |
| 10984 | + htab->brlt->output_offset | |
| 10985 | + htab->brlt->output_section->vma); | |
| 10986 | ||
| 10987 | off = (dest | |
| 06bcf541 | 10988 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 10989 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 10990 | |
| ad8e1ba5 | 10991 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10992 | { |
| 25f53a85 | 10993 | info->callbacks->einfo |
| bc30df16 | 10994 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10995 | stub_entry->root.string); |
| 5d1634d7 | 10996 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10997 | htab->stub_error = TRUE; |
| 10998 | return FALSE; | |
| 5d1634d7 | 10999 | } |
| 41bd81ab | 11000 | |
| 176a0d42 AM |
11001 | if (info->emitrelocations) |
| 11002 | { | |
| 6f20ed8a | 11003 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11004 | if (r == NULL) |
| 11005 | return FALSE; | |
| 6f20ed8a | 11006 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11007 | if (bfd_big_endian (info->output_bfd)) |
| 11008 | r[0].r_offset += 2; | |
| 00f412ee | 11009 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11010 | r[0].r_offset += 4; |
| 11011 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11012 | r[0].r_addend = dest; | |
| 11013 | if (PPC_HA (off) != 0) | |
| 11014 | { | |
| 11015 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11016 | r[1].r_offset = r[0].r_offset + 4; | |
| 11017 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11018 | r[1].r_addend = r[0].r_addend; | |
| 11019 | } | |
| 11020 | } | |
| 11021 | ||
| 9e390558 | 11022 | p = loc; |
| 00f412ee | 11023 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11024 | { |
| 176a0d42 | 11025 | if (PPC_HA (off) != 0) |
| ac2df442 | 11026 | { |
| e7d1c40c | 11027 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11028 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11029 | p += 4; | |
| e7d1c40c | 11030 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11031 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11032 | } |
| 11033 | else | |
| 9e390558 AM |
11034 | bfd_put_32 (htab->params->stub_bfd, |
| 11035 | LD_R12_0R2 | PPC_LO (off), p); | |
| ad8e1ba5 AM |
11036 | } |
| 11037 | else | |
| 11038 | { | |
| 25f53a85 | 11039 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11040 | |
| a7c49797 | 11041 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11042 | { |
| 11043 | htab->stub_error = TRUE; | |
| 11044 | return FALSE; | |
| 11045 | } | |
| ad8e1ba5 | 11046 | |
| 9e390558 AM |
11047 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 11048 | p += 4; | |
| 176a0d42 | 11049 | if (PPC_HA (off) != 0) |
| ac2df442 | 11050 | { |
| e7d1c40c | 11051 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11052 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11053 | p += 4; | |
| e7d1c40c | 11054 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11055 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11056 | } |
| 11057 | else | |
| 9e390558 | 11058 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), p); |
| ac2df442 AM |
11059 | |
| 11060 | if (PPC_HA (r2off) != 0) | |
| 11061 | { | |
| 9e390558 | 11062 | p += 4; |
| e7d1c40c | 11063 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11064 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 00f412ee AM |
11065 | } |
| 11066 | if (PPC_LO (r2off) != 0) | |
| 11067 | { | |
| 9e390558 | 11068 | p += 4; |
| e7d1c40c | 11069 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11070 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| ac2df442 | 11071 | } |
| ad8e1ba5 | 11072 | } |
| 9e390558 AM |
11073 | p += 4; |
| 11074 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, p); | |
| 11075 | p += 4; | |
| 407aa07c AM |
11076 | bfd_put_32 (htab->params->stub_bfd, BCTR, p); |
| 11077 | p += 4; | |
| 721956f4 | 11078 | break; |
| 5d1634d7 | 11079 | |
| 721956f4 | 11080 | case ppc_stub_plt_call: |
| 794e51c0 | 11081 | case ppc_stub_plt_call_r2save: |
| e054468f | 11082 | if (stub_entry->h != NULL |
| b31867b6 AM |
11083 | && stub_entry->h->is_func_descriptor |
| 11084 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11085 | { |
| b31867b6 AM |
11086 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11087 | ||
| 11088 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11089 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11090 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11091 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11092 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11093 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11094 | } |
| 11095 | ||
| 721956f4 | 11096 | /* Now build the stub. */ |
| e054468f | 11097 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11098 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11099 | abort (); |
| 11100 | ||
| 33e44f2e | 11101 | plt = htab->elf.splt; |
| 25f23106 AM |
11102 | if (!htab->elf.dynamic_sections_created |
| 11103 | || stub_entry->h == NULL | |
| 11104 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11105 | plt = htab->elf.iplt; |
| e054468f AM |
11106 | |
| 11107 | dest += plt->output_offset + plt->output_section->vma; | |
| 11108 | ||
| 11109 | if (stub_entry->h == NULL | |
| 11110 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11111 | { | |
| 11112 | Elf_Internal_Rela rela; | |
| 11113 | bfd_byte *rl; | |
| 11114 | ||
| 11115 | rela.r_offset = dest; | |
| ee67d69a AM |
11116 | if (htab->opd_abi) |
| 11117 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11118 | else | |
| 11119 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11120 | rela.r_addend = (stub_entry->target_value |
| 11121 | + stub_entry->target_section->output_offset | |
| 11122 | + stub_entry->target_section->output_section->vma); | |
| 11123 | ||
| 33e44f2e AM |
11124 | rl = (htab->elf.irelplt->contents |
| 11125 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11126 | * sizeof (Elf64_External_Rela))); |
| 11127 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f | 11128 | stub_entry->plt_ent->plt.offset |= 1; |
| 82e66161 | 11129 | htab->local_ifunc_resolver = 1; |
| e054468f | 11130 | } |
| 176a0d42 AM |
11131 | |
| 11132 | off = (dest | |
| 06bcf541 | 11133 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11134 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11135 | |
| ad8e1ba5 | 11136 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11137 | { |
| 25f53a85 | 11138 | info->callbacks->einfo |
| 695344c0 | 11139 | /* xgettext:c-format */ |
| bc30df16 | 11140 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11141 | stub_entry->h != NULL |
| 11142 | ? stub_entry->h->elf.root.root.string | |
| 11143 | : "<local sym>"); | |
| 721956f4 | 11144 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11145 | htab->stub_error = TRUE; |
| 11146 | return FALSE; | |
| 721956f4 AM |
11147 | } |
| 11148 | ||
| e7d1c40c | 11149 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11150 | { |
| 11151 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11152 | ||
| 6f20ed8a AM |
11153 | stub_entry->group->stub_sec->size += pad; |
| 11154 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11155 | loc += pad; |
| 11156 | } | |
| 11157 | ||
| 176a0d42 AM |
11158 | r = NULL; |
| 11159 | if (info->emitrelocations) | |
| 11160 | { | |
| 6f20ed8a | 11161 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11162 | ((PPC_HA (off) != 0) |
| 11163 | + (htab->opd_abi | |
| e7d1c40c | 11164 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11165 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11166 | : 1))); | |
| 176a0d42 AM |
11167 | if (r == NULL) |
| 11168 | return FALSE; | |
| 6f20ed8a | 11169 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11170 | if (bfd_big_endian (info->output_bfd)) |
| 11171 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11172 | r[0].r_addend = dest; |
| 11173 | } | |
| a7f2871e AM |
11174 | if (stub_entry->h != NULL |
| 11175 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11176 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11177 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11178 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11179 | else |
| 794e51c0 | 11180 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11181 | break; |
| 11182 | ||
| a4b6fadd AM |
11183 | case ppc_stub_save_res: |
| 11184 | return TRUE; | |
| 11185 | ||
| 721956f4 AM |
11186 | default: |
| 11187 | BFD_FAIL (); | |
| b34976b6 | 11188 | return FALSE; |
| 721956f4 AM |
11189 | } |
| 11190 | ||
| 9e390558 | 11191 | stub_entry->group->stub_sec->size += p - loc; |
| 97b639ba | 11192 | |
| e7d1c40c | 11193 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11194 | { |
| 11195 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11196 | size_t len1, len2; |
| 11197 | char *name; | |
| 11198 | const char *const stub_str[] = { "long_branch", | |
| 11199 | "long_branch_r2off", | |
| 11200 | "plt_branch", | |
| 11201 | "plt_branch_r2off", | |
| 794e51c0 | 11202 | "plt_call", |
| ee75fd95 AM |
11203 | "plt_call" }; |
| 11204 | ||
| 11205 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11206 | len2 = strlen (stub_entry->root.string); | |
| 11207 | name = bfd_malloc (len1 + len2 + 2); | |
| 11208 | if (name == NULL) | |
| 11209 | return FALSE; | |
| 11210 | memcpy (name, stub_entry->root.string, 9); | |
| 11211 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11212 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11213 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11214 | if (h == NULL) |
| 11215 | return FALSE; | |
| 11216 | if (h->root.type == bfd_link_hash_new) | |
| 11217 | { | |
| 11218 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11219 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11220 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11221 | h->ref_regular = 1; |
| 11222 | h->def_regular = 1; | |
| 11223 | h->ref_regular_nonweak = 1; | |
| 11224 | h->forced_local = 1; | |
| 11225 | h->non_elf = 0; | |
| 2ec55de3 | 11226 | h->root.linker_def = 1; |
| 97b639ba AM |
11227 | } |
| 11228 | } | |
| 11229 | ||
| b34976b6 | 11230 | return TRUE; |
| 721956f4 AM |
11231 | } |
| 11232 | ||
| 11233 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11234 | we know stub section sizes, and select plt_branch stubs where | |
| 11235 | long_branch stubs won't do. */ | |
| 11236 | ||
| b34976b6 | 11237 | static bfd_boolean |
| 4ce794b7 | 11238 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11239 | { |
| 11240 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11241 | struct bfd_link_info *info; |
| 721956f4 AM |
11242 | struct ppc_link_hash_table *htab; |
| 11243 | bfd_vma off; | |
| 11244 | int size; | |
| 11245 | ||
| 11246 | /* Massage our args to the form they really have. */ | |
| 11247 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11248 | info = in_arg; |
| 11249 | ||
| 11250 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11251 | if (htab == NULL) |
| 11252 | return FALSE; | |
| 721956f4 | 11253 | |
| a4b6fadd AM |
11254 | if (stub_entry->h != NULL |
| 11255 | && stub_entry->h->save_res | |
| 11256 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11257 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11258 | { | |
| 11259 | /* Don't make stubs to out-of-line register save/restore | |
| 11260 | functions. Instead, emit copies of the functions. */ | |
| 11261 | stub_entry->group->needs_save_res = 1; | |
| 11262 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11263 | return TRUE; | |
| 11264 | } | |
| 11265 | ||
| 794e51c0 AM |
11266 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11267 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11268 | { |
| e054468f AM |
11269 | asection *plt; |
| 11270 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11271 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11272 | abort (); |
| 33e44f2e | 11273 | plt = htab->elf.splt; |
| 25f23106 AM |
11274 | if (!htab->elf.dynamic_sections_created |
| 11275 | || stub_entry->h == NULL | |
| 11276 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11277 | plt = htab->elf.iplt; |
| e054468f AM |
11278 | off += (plt->output_offset |
| 11279 | + plt->output_section->vma | |
| 06bcf541 | 11280 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11281 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11282 | |
| 794e51c0 | 11283 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11284 | if (stub_entry->h != NULL |
| 11285 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11286 | || stub_entry->h == htab->tls_get_addr) | |
| 11287 | && htab->params->tls_get_addr_opt | |
| 11288 | && (ALWAYS_EMIT_R2SAVE | |
| 11289 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11290 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11291 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11292 | ||
| e7d1c40c | 11293 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11294 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11295 | if (info->emitrelocations) |
| 11296 | { | |
| 6f20ed8a | 11297 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11298 | += ((PPC_HA (off) != 0) |
| 11299 | + (htab->opd_abi | |
| e7d1c40c | 11300 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11301 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11302 | : 1)); | |
| 6f20ed8a | 11303 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11304 | } |
| 721956f4 AM |
11305 | } |
| 11306 | else | |
| 11307 | { | |
| ad8e1ba5 AM |
11308 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11309 | variants. */ | |
| ac2df442 | 11310 | bfd_vma r2off = 0; |
| 6911b7dc | 11311 | bfd_vma local_off = 0; |
| ac2df442 | 11312 | |
| 721956f4 AM |
11313 | off = (stub_entry->target_value |
| 11314 | + stub_entry->target_section->output_offset | |
| 11315 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11316 | off -= (stub_entry->group->stub_sec->size |
| 11317 | + stub_entry->group->stub_sec->output_offset | |
| 11318 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11319 | |
| ad8e1ba5 AM |
11320 | /* Reset the stub type from the plt variant in case we now |
| 11321 | can reach with a shorter stub. */ | |
| 11322 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11323 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11324 | ||
| 11325 | size = 4; | |
| 11326 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11327 | { | |
| 25f53a85 | 11328 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11329 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11330 | { |
| 11331 | htab->stub_error = TRUE; | |
| 11332 | return FALSE; | |
| 11333 | } | |
| a7c49797 | 11334 | size = 8; |
| ac2df442 | 11335 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11336 | size += 4; |
| 11337 | if (PPC_LO (r2off) != 0) | |
| 11338 | size += 4; | |
| ac2df442 | 11339 | off -= size - 4; |
| ad8e1ba5 AM |
11340 | } |
| 11341 | ||
| 6911b7dc AM |
11342 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11343 | ||
| b9e5796b AM |
11344 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11345 | Do the same for -R objects without function descriptors. */ | |
| 11346 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11347 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11348 | && r2off == 0 |
| 11349 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11350 | { |
| 11351 | struct ppc_branch_hash_entry *br_entry; | |
| 11352 | ||
| 11353 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11354 | stub_entry->root.string + 9, | |
| b34976b6 | 11355 | TRUE, FALSE); |
| 721956f4 AM |
11356 | if (br_entry == NULL) |
| 11357 | { | |
| 8de848d8 | 11358 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11359 | stub_entry->root.string); |
| b34976b6 AM |
11360 | htab->stub_error = TRUE; |
| 11361 | return FALSE; | |
| 721956f4 AM |
11362 | } |
| 11363 | ||
| 11364 | if (br_entry->iter != htab->stub_iteration) | |
| 11365 | { | |
| 11366 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11367 | br_entry->offset = htab->brlt->size; |
| 11368 | htab->brlt->size += 8; | |
| 63bc6f6c | 11369 | |
| ee75fd95 | 11370 | if (htab->relbrlt != NULL) |
| eea6121a | 11371 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11372 | else if (info->emitrelocations) |
| 11373 | { | |
| 11374 | htab->brlt->reloc_count += 1; | |
| 11375 | htab->brlt->flags |= SEC_RELOC; | |
| 11376 | } | |
| 721956f4 | 11377 | } |
| ad8e1ba5 AM |
11378 | |
| 11379 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11380 | off = (br_entry->offset |
| 11381 | + htab->brlt->output_offset | |
| 11382 | + htab->brlt->output_section->vma | |
| 06bcf541 | 11383 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11384 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11385 | |
| 176a0d42 AM |
11386 | if (info->emitrelocations) |
| 11387 | { | |
| 6f20ed8a AM |
11388 | stub_entry->group->stub_sec->reloc_count |
| 11389 | += 1 + (PPC_HA (off) != 0); | |
| 11390 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11391 | } |
| 11392 | ||
| 00f412ee | 11393 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11394 | { |
| 11395 | size = 12; | |
| 176a0d42 | 11396 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11397 | size = 16; |
| 11398 | } | |
| 11399 | else | |
| 11400 | { | |
| 00f412ee | 11401 | size = 16; |
| 176a0d42 | 11402 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11403 | size += 4; |
| 11404 | ||
| 11405 | if (PPC_HA (r2off) != 0) | |
| 11406 | size += 4; | |
| 00f412ee AM |
11407 | if (PPC_LO (r2off) != 0) |
| 11408 | size += 4; | |
| ac2df442 | 11409 | } |
| 721956f4 | 11410 | } |
| 84f5d08e AM |
11411 | else if (info->emitrelocations) |
| 11412 | { | |
| 6f20ed8a AM |
11413 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11414 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11415 | } |
| 721956f4 AM |
11416 | } |
| 11417 | ||
| 6f20ed8a | 11418 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11419 | return TRUE; |
| 721956f4 AM |
11420 | } |
| 11421 | ||
| 11422 | /* Set up various things so that we can make a list of input sections | |
| 11423 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11424 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11425 | |
| 11426 | int | |
| e7d1c40c | 11427 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11428 | { |
| 6f20ed8a | 11429 | unsigned int id; |
| 721956f4 AM |
11430 | bfd_size_type amt; |
| 11431 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11432 | ||
| 4dfe6ac6 NC |
11433 | if (htab == NULL) |
| 11434 | return -1; | |
| 4c52953f | 11435 | |
| 6f20ed8a AM |
11436 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11437 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11438 | htab->sec_info = bfd_zmalloc (amt); | |
| 11439 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11440 | return -1; |
| 11441 | ||
| 3d6f9012 AM |
11442 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11443 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11444 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11445 | |
| 721956f4 AM |
11446 | return 1; |
| 11447 | } | |
| 11448 | ||
| 927be08e AM |
11449 | /* Set up for first pass at multitoc partitioning. */ |
| 11450 | ||
| 11451 | void | |
| 11452 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11453 | { | |
| 11454 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11455 | ||
| 1c865ab2 | 11456 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11457 | htab->toc_bfd = NULL; |
| 11458 | htab->toc_first_sec = NULL; | |
| 11459 | } | |
| 11460 | ||
| e717da7e AM |
11461 | /* The linker repeatedly calls this function for each TOC input section |
| 11462 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11463 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11464 | |
| 927be08e | 11465 | bfd_boolean |
| 4ce794b7 | 11466 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11467 | { |
| 11468 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11469 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11470 | |
| 4dfe6ac6 NC |
11471 | if (htab == NULL) |
| 11472 | return FALSE; | |
| 11473 | ||
| 927be08e | 11474 | if (!htab->second_toc_pass) |
| 4c52953f | 11475 | { |
| 927be08e | 11476 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11477 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11478 | ||
| 11479 | if (new_bfd) | |
| bf102f86 AM |
11480 | { |
| 11481 | htab->toc_bfd = isec->owner; | |
| 11482 | htab->toc_first_sec = isec; | |
| 11483 | } | |
| 927be08e | 11484 | |
| bf102f86 AM |
11485 | addr = isec->output_offset + isec->output_section->vma; |
| 11486 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11487 | limit = 0x80008000; |
| 11488 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11489 | limit = 0x10000; | |
| 11490 | if (off + isec->size > limit) | |
| bf102f86 AM |
11491 | { |
| 11492 | addr = (htab->toc_first_sec->output_offset | |
| 11493 | + htab->toc_first_sec->output_section->vma); | |
| 11494 | htab->toc_curr = addr; | |
| a27e685f | 11495 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11496 | } |
| 99877b66 | 11497 | |
| 927be08e AM |
11498 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11499 | for the input section to be the offset relative to the | |
| 11500 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11501 | offset allows us to move the toc as a whole without | |
| 11502 | recalculating input elf_gp. */ | |
| 06bcf541 | 11503 | off = htab->toc_curr - elf_gp (info->output_bfd); |
| 927be08e AM |
11504 | off += TOC_BASE_OFF; |
| 11505 | ||
| 11506 | /* Die if someone uses a linker script that doesn't keep input | |
| 11507 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11508 | if (new_bfd |
| 11509 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11510 | && elf_gp (isec->owner) != off) |
| 11511 | return FALSE; | |
| 11512 | ||
| 11513 | elf_gp (isec->owner) = off; | |
| 11514 | return TRUE; | |
| 4c52953f | 11515 | } |
| 927be08e AM |
11516 | |
| 11517 | /* During the second pass toc_first_sec points to the start of | |
| 11518 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11519 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11520 | if (htab->toc_bfd == isec->owner) | |
| 11521 | return TRUE; | |
| 11522 | htab->toc_bfd = isec->owner; | |
| 11523 | ||
| 11524 | if (htab->toc_first_sec == NULL | |
| 11525 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11526 | { | |
| 11527 | htab->toc_curr = elf_gp (isec->owner); | |
| 11528 | htab->toc_first_sec = isec; | |
| 11529 | } | |
| 11530 | addr = (htab->toc_first_sec->output_offset | |
| 11531 | + htab->toc_first_sec->output_section->vma); | |
| 06bcf541 | 11532 | off = addr - elf_gp (info->output_bfd) + TOC_BASE_OFF; |
| 927be08e AM |
11533 | elf_gp (isec->owner) = off; |
| 11534 | ||
| 11535 | return TRUE; | |
| ad8e1ba5 AM |
11536 | } |
| 11537 | ||
| 927be08e AM |
11538 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11539 | symbol H. */ | |
| 11540 | ||
| 11541 | static bfd_boolean | |
| 11542 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11543 | { | |
| 11544 | if (h->root.type == bfd_link_hash_indirect) | |
| 11545 | return TRUE; | |
| 11546 | ||
| 927be08e AM |
11547 | merge_got_entries (&h->got.glist); |
| 11548 | ||
| 11549 | return TRUE; | |
| 11550 | } | |
| 11551 | ||
| 11552 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11553 | symbol H. */ | |
| 11554 | ||
| 11555 | static bfd_boolean | |
| 11556 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11557 | { | |
| 11558 | struct got_entry *gent; | |
| 11559 | ||
| 11560 | if (h->root.type == bfd_link_hash_indirect) | |
| 11561 | return TRUE; | |
| 11562 | ||
| 927be08e AM |
11563 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11564 | if (!gent->is_indirect) | |
| 11565 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11566 | return TRUE; | |
| 11567 | } | |
| 11568 | ||
| 11569 | /* Called on the first multitoc pass after the last call to | |
| 11570 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11571 | entries. */ | |
| 11572 | ||
| 11573 | bfd_boolean | |
| 11574 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11575 | { |
| 11576 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11577 | struct bfd *ibfd, *ibfd2; |
| 11578 | bfd_boolean done_something; | |
| 11579 | ||
| 11580 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11581 | |
| 7865406b AM |
11582 | if (!htab->do_multi_toc) |
| 11583 | return FALSE; | |
| 11584 | ||
| d0fae19d | 11585 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11586 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11587 | ||
| 11588 | /* And tlsld_got. */ | |
| c72f2fb2 | 11589 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11590 | { |
| 11591 | struct got_entry *ent, *ent2; | |
| 11592 | ||
| 11593 | if (!is_ppc64_elf (ibfd)) | |
| 11594 | continue; | |
| 11595 | ||
| 11596 | ent = ppc64_tlsld_got (ibfd); | |
| 11597 | if (!ent->is_indirect | |
| 11598 | && ent->got.offset != (bfd_vma) -1) | |
| 11599 | { | |
| c72f2fb2 | 11600 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11601 | { |
| 11602 | if (!is_ppc64_elf (ibfd2)) | |
| 11603 | continue; | |
| 11604 | ||
| 11605 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11606 | if (!ent2->is_indirect | |
| 11607 | && ent2->got.offset != (bfd_vma) -1 | |
| 11608 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11609 | { | |
| 11610 | ent2->is_indirect = TRUE; | |
| 11611 | ent2->got.ent = ent; | |
| 11612 | } | |
| 11613 | } | |
| 11614 | } | |
| 11615 | } | |
| 11616 | ||
| 11617 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11618 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11619 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11620 | htab->got_reli_size = 0; |
| 11621 | ||
| c72f2fb2 | 11622 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11623 | { |
| 11624 | asection *got, *relgot; | |
| 11625 | ||
| 11626 | if (!is_ppc64_elf (ibfd)) | |
| 11627 | continue; | |
| 11628 | ||
| 11629 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11630 | if (got != NULL) | |
| 11631 | { | |
| 11632 | got->rawsize = got->size; | |
| 11633 | got->size = 0; | |
| 11634 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11635 | relgot->rawsize = relgot->size; | |
| 11636 | relgot->size = 0; | |
| 11637 | } | |
| 11638 | } | |
| 11639 | ||
| 11640 | /* Now reallocate the got, local syms first. We don't need to | |
| 11641 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11642 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11643 | { |
| 11644 | struct got_entry **lgot_ents; | |
| 11645 | struct got_entry **end_lgot_ents; | |
| 11646 | struct plt_entry **local_plt; | |
| 11647 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11648 | unsigned char *lgot_masks; |
| 927be08e AM |
11649 | bfd_size_type locsymcount; |
| 11650 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11651 | asection *s; |
| 927be08e AM |
11652 | |
| 11653 | if (!is_ppc64_elf (ibfd)) | |
| 11654 | continue; | |
| 11655 | ||
| 11656 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11657 | if (!lgot_ents) | |
| 11658 | continue; | |
| 11659 | ||
| 11660 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11661 | locsymcount = symtab_hdr->sh_info; | |
| 11662 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11663 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11664 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11665 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11666 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11667 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11668 | { | |
| 11669 | struct got_entry *ent; | |
| 11670 | ||
| 11671 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11672 | { |
| 19e08130 AM |
11673 | unsigned int ent_size = 8; |
| 11674 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11675 | ||
| d0fae19d AM |
11676 | ent->got.offset = s->size; |
| 11677 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11678 | { |
| 19e08130 AM |
11679 | ent_size *= 2; |
| 11680 | rel_size *= 2; | |
| 11681 | } | |
| 11682 | s->size += ent_size; | |
| 11683 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11684 | { | |
| 33e44f2e | 11685 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11686 | htab->got_reli_size += rel_size; |
| 11687 | } | |
| 0e1862bb | 11688 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11689 | { |
| 11690 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11691 | srel->size += rel_size; | |
| d0fae19d AM |
11692 | } |
| 11693 | } | |
| 927be08e AM |
11694 | } |
| 11695 | } | |
| 11696 | ||
| 11697 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11698 | ||
| c72f2fb2 | 11699 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11700 | { |
| 11701 | struct got_entry *ent; | |
| 11702 | ||
| 11703 | if (!is_ppc64_elf (ibfd)) | |
| 11704 | continue; | |
| 11705 | ||
| 11706 | ent = ppc64_tlsld_got (ibfd); | |
| 11707 | if (!ent->is_indirect | |
| 11708 | && ent->got.offset != (bfd_vma) -1) | |
| 11709 | { | |
| 11710 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11711 | ent->got.offset = s->size; | |
| 11712 | s->size += 16; | |
| 0e1862bb | 11713 | if (bfd_link_pic (info)) |
| 927be08e AM |
11714 | { |
| 11715 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11716 | srel->size += sizeof (Elf64_External_Rela); | |
| 11717 | } | |
| 11718 | } | |
| 11719 | } | |
| 11720 | ||
| 33e44f2e | 11721 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11722 | if (!done_something) |
| c72f2fb2 | 11723 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11724 | { |
| 11725 | asection *got; | |
| 11726 | ||
| 11727 | if (!is_ppc64_elf (ibfd)) | |
| 11728 | continue; | |
| 11729 | ||
| 11730 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11731 | if (got != NULL) | |
| 11732 | { | |
| 11733 | done_something = got->rawsize != got->size; | |
| 11734 | if (done_something) | |
| 11735 | break; | |
| 11736 | } | |
| 11737 | } | |
| 11738 | ||
| 11739 | if (done_something) | |
| e7d1c40c | 11740 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11741 | |
| 11742 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11743 | on input sections. */ | |
| 11744 | htab->toc_bfd = NULL; | |
| 11745 | htab->toc_first_sec = NULL; | |
| 11746 | htab->second_toc_pass = TRUE; | |
| 11747 | return done_something; | |
| 11748 | } | |
| 11749 | ||
| 11750 | /* Called after second pass of multitoc partitioning. */ | |
| 11751 | ||
| 11752 | void | |
| 11753 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11754 | { | |
| 11755 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11756 | ||
| 11757 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11758 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11759 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11760 | } |
| 11761 | ||
| 9b5ecbd0 AM |
11762 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11763 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11764 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11765 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11766 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11767 | for a stub was detected. If called from the top level, a return of | |
| 11768 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11769 | |
| 11770 | static int | |
| 4ce794b7 | 11771 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11772 | { |
| 9b5ecbd0 | 11773 | int ret; |
| 70cc837d AM |
11774 | |
| 11775 | /* Mark this section as checked. */ | |
| 11776 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11777 | |
| 772119ce AM |
11778 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11779 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11780 | return 0; | |
| 11781 | ||
| eea6121a | 11782 | if (isec->size == 0) |
| 082c50f8 AM |
11783 | return 0; |
| 11784 | ||
| 4c52953f AM |
11785 | if (isec->output_section == NULL) |
| 11786 | return 0; | |
| 11787 | ||
| 4c52953f | 11788 | ret = 0; |
| 70cc837d | 11789 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11790 | { |
| 70cc837d AM |
11791 | Elf_Internal_Rela *relstart, *rel; |
| 11792 | Elf_Internal_Sym *local_syms; | |
| 11793 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11794 | |
| 70cc837d AM |
11795 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11796 | info->keep_memory); | |
| 11797 | if (relstart == NULL) | |
| 11798 | return -1; | |
| 90aecf7a | 11799 | |
| 70cc837d AM |
11800 | /* Look for branches to outside of this section. */ |
| 11801 | local_syms = NULL; | |
| 11802 | htab = ppc_hash_table (info); | |
| 11803 | if (htab == NULL) | |
| 11804 | return -1; | |
| 4c52953f | 11805 | |
| 70cc837d | 11806 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11807 | { |
| 70cc837d AM |
11808 | enum elf_ppc64_reloc_type r_type; |
| 11809 | unsigned long r_symndx; | |
| 11810 | struct elf_link_hash_entry *h; | |
| 11811 | struct ppc_link_hash_entry *eh; | |
| 11812 | Elf_Internal_Sym *sym; | |
| 11813 | asection *sym_sec; | |
| 11814 | struct _opd_sec_data *opd; | |
| 11815 | bfd_vma sym_value; | |
| 11816 | bfd_vma dest; | |
| 11817 | ||
| 11818 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11819 | if (r_type != R_PPC64_REL24 | |
| 11820 | && r_type != R_PPC64_REL14 | |
| 11821 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11822 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11823 | continue; | |
| 4c52953f | 11824 | |
| 70cc837d AM |
11825 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11826 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11827 | isec->owner)) | |
| 4c52953f | 11828 | { |
| 70cc837d AM |
11829 | ret = -1; |
| 11830 | break; | |
| 11831 | } | |
| 4c52953f | 11832 | |
| 70cc837d AM |
11833 | /* Calls to dynamic lib functions go through a plt call stub |
| 11834 | that uses r2. */ | |
| 11835 | eh = (struct ppc_link_hash_entry *) h; | |
| 11836 | if (eh != NULL | |
| 11837 | && (eh->elf.plt.plist != NULL | |
| 11838 | || (eh->oh != NULL | |
| 11839 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11840 | { | |
| 11841 | ret = 1; | |
| 11842 | break; | |
| 4c52953f AM |
11843 | } |
| 11844 | ||
| 70cc837d AM |
11845 | if (sym_sec == NULL) |
| 11846 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11847 | continue; |
| 4c52953f | 11848 | |
| 70cc837d AM |
11849 | /* Assume branches to other sections not included in the |
| 11850 | link need stubs too, to cover -R and absolute syms. */ | |
| 11851 | if (sym_sec->output_section == NULL) | |
| 11852 | { | |
| 11853 | ret = 1; | |
| 11854 | break; | |
| 11855 | } | |
| 4c52953f | 11856 | |
| 70cc837d AM |
11857 | if (h == NULL) |
| 11858 | sym_value = sym->st_value; | |
| 11859 | else | |
| 11860 | { | |
| 11861 | if (h->root.type != bfd_link_hash_defined | |
| 11862 | && h->root.type != bfd_link_hash_defweak) | |
| 11863 | abort (); | |
| 11864 | sym_value = h->root.u.def.value; | |
| 11865 | } | |
| 11866 | sym_value += rel->r_addend; | |
| 4c52953f | 11867 | |
| 70cc837d AM |
11868 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11869 | opd = get_opd_info (sym_sec); | |
| 11870 | if (opd != NULL) | |
| 11871 | { | |
| 11872 | if (h == NULL && opd->adjust != NULL) | |
| 11873 | { | |
| 11874 | long adjust; | |
| 4c52953f | 11875 | |
| 92a9c616 | 11876 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11877 | if (adjust == -1) |
| 11878 | /* Assume deleted functions won't ever be called. */ | |
| 11879 | continue; | |
| 11880 | sym_value += adjust; | |
| 11881 | } | |
| 4c52953f | 11882 | |
| aef36ac1 AM |
11883 | dest = opd_entry_value (sym_sec, sym_value, |
| 11884 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11885 | if (dest == (bfd_vma) -1) |
| 11886 | continue; | |
| 11887 | } | |
| 11888 | else | |
| 11889 | dest = (sym_value | |
| 11890 | + sym_sec->output_offset | |
| 11891 | + sym_sec->output_section->vma); | |
| 4c52953f | 11892 | |
| 70cc837d AM |
11893 | /* Ignore branch to self. */ |
| 11894 | if (sym_sec == isec) | |
| 11895 | continue; | |
| 4c52953f | 11896 | |
| 70cc837d AM |
11897 | /* If the called function uses the toc, we need a stub. */ |
| 11898 | if (sym_sec->has_toc_reloc | |
| 11899 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11900 | { |
| 70cc837d | 11901 | ret = 1; |
| 4c52953f AM |
11902 | break; |
| 11903 | } | |
| 70cc837d AM |
11904 | |
| 11905 | /* Assume any branch that needs a long branch stub might in fact | |
| 11906 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11907 | else if (dest - (isec->output_offset | |
| 11908 | + isec->output_section->vma | |
| 6911b7dc AM |
11909 | + rel->r_offset) + (1 << 25) |
| 11910 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11911 | ? h->other | |
| 11912 | : sym->st_other)) | |
| 4c52953f | 11913 | { |
| 70cc837d AM |
11914 | ret = 1; |
| 11915 | break; | |
| 11916 | } | |
| 11917 | ||
| 11918 | /* If calling back to a section in the process of being | |
| 11919 | tested, we can't say for sure that no toc adjusting stubs | |
| 11920 | are needed, so don't return zero. */ | |
| 11921 | else if (sym_sec->call_check_in_progress) | |
| 11922 | ret = 2; | |
| 11923 | ||
| 11924 | /* Branches to another section that itself doesn't have any TOC | |
| 11925 | references are OK. Recursively call ourselves to check. */ | |
| 11926 | else if (!sym_sec->call_check_done) | |
| 11927 | { | |
| 11928 | int recur; | |
| 11929 | ||
| 11930 | /* Mark current section as indeterminate, so that other | |
| 11931 | sections that call back to current won't be marked as | |
| 11932 | known. */ | |
| 11933 | isec->call_check_in_progress = 1; | |
| 11934 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11935 | isec->call_check_in_progress = 0; | |
| 11936 | ||
| 4c52953f AM |
11937 | if (recur != 0) |
| 11938 | { | |
| 70cc837d AM |
11939 | ret = recur; |
| 11940 | if (recur != 2) | |
| 11941 | break; | |
| 4c52953f AM |
11942 | } |
| 11943 | } | |
| 4c52953f | 11944 | } |
| 70cc837d AM |
11945 | |
| 11946 | if (local_syms != NULL | |
| 11947 | && (elf_symtab_hdr (isec->owner).contents | |
| 11948 | != (unsigned char *) local_syms)) | |
| 11949 | free (local_syms); | |
| 11950 | if (elf_section_data (isec)->relocs != relstart) | |
| 11951 | free (relstart); | |
| 9b5ecbd0 AM |
11952 | } |
| 11953 | ||
| 70cc837d AM |
11954 | if ((ret & 1) == 0 |
| 11955 | && isec->map_head.s != NULL | |
| 11956 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11957 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11958 | { | |
| 11959 | if (isec->map_head.s->has_toc_reloc | |
| 11960 | || isec->map_head.s->makes_toc_func_call) | |
| 11961 | ret = 1; | |
| 11962 | else if (!isec->map_head.s->call_check_done) | |
| 11963 | { | |
| 11964 | int recur; | |
| 11965 | isec->call_check_in_progress = 1; | |
| 11966 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11967 | isec->call_check_in_progress = 0; | |
| 11968 | if (recur != 0) | |
| 11969 | ret = recur; | |
| 11970 | } | |
| 11971 | } | |
| 11972 | ||
| 11973 | if (ret == 1) | |
| 11974 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11975 | |
| 9b5ecbd0 AM |
11976 | return ret; |
| 11977 | } | |
| 11978 | ||
| 721956f4 AM |
11979 | /* The linker repeatedly calls this function for each input section, |
| 11980 | in the order that input sections are linked into output sections. | |
| 11981 | Build lists of input sections to determine groupings between which | |
| 11982 | we may insert linker stubs. */ | |
| 11983 | ||
| 9b5ecbd0 | 11984 | bfd_boolean |
| 4ce794b7 | 11985 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11986 | { |
| 11987 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11988 | ||
| 4dfe6ac6 NC |
11989 | if (htab == NULL) |
| 11990 | return FALSE; | |
| 11991 | ||
| 734b6cf9 | 11992 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 11993 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 11994 | { |
| 3d6f9012 AM |
11995 | /* This happens to make the list in reverse order, |
| 11996 | which is what we want. */ | |
| 6f20ed8a AM |
11997 | htab->sec_info[isec->id].u.list |
| 11998 | = htab->sec_info[isec->output_section->id].u.list; | |
| 11999 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12000 | } |
| ad8e1ba5 | 12001 | |
| 4c52953f | 12002 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12003 | { |
| 8b974ba3 AM |
12004 | /* Analyse sections that aren't already flagged as needing a |
| 12005 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12006 | .fixup contains branches, but only back to the function that | |
| 12007 | hit an exception. */ | |
| 12008 | if (!(isec->has_toc_reloc | |
| 12009 | || (isec->flags & SEC_CODE) == 0 | |
| 12010 | || strcmp (isec->name, ".fixup") == 0 | |
| 12011 | || isec->call_check_done)) | |
| 12012 | { | |
| 12013 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12014 | return FALSE; |
| 8b974ba3 AM |
12015 | } |
| 12016 | /* Make all sections use the TOC assigned for this object file. | |
| 12017 | This will be wrong for pasted sections; We fix that in | |
| 12018 | check_pasted_section(). */ | |
| 12019 | if (elf_gp (isec->owner) != 0) | |
| 12020 | htab->toc_curr = elf_gp (isec->owner); | |
| 12021 | } | |
| 12022 | ||
| 6f20ed8a | 12023 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12024 | return TRUE; |
| 721956f4 AM |
12025 | } |
| 12026 | ||
| 70cc837d AM |
12027 | /* Check that all .init and .fini sections use the same toc, if they |
| 12028 | have toc relocs. */ | |
| 12029 | ||
| 12030 | static bfd_boolean | |
| 12031 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12032 | { | |
| 12033 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12034 | ||
| 12035 | if (o != NULL) | |
| 12036 | { | |
| 12037 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12038 | bfd_vma toc_off = 0; | |
| 12039 | asection *i; | |
| 12040 | ||
| 12041 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12042 | if (i->has_toc_reloc) | |
| 12043 | { | |
| 12044 | if (toc_off == 0) | |
| 6f20ed8a AM |
12045 | toc_off = htab->sec_info[i->id].toc_off; |
| 12046 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12047 | return FALSE; |
| 12048 | } | |
| 6683a28d AM |
12049 | |
| 12050 | if (toc_off == 0) | |
| 12051 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12052 | if (i->makes_toc_func_call) | |
| 12053 | { | |
| 6f20ed8a | 12054 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12055 | break; |
| 12056 | } | |
| 12057 | ||
| 70cc837d AM |
12058 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12059 | if (toc_off != 0) | |
| 12060 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12061 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12062 | } |
| 12063 | return TRUE; | |
| 12064 | } | |
| 12065 | ||
| 12066 | bfd_boolean | |
| 12067 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12068 | { | |
| 12069 | return (check_pasted_section (info, ".init") | |
| 12070 | & check_pasted_section (info, ".fini")); | |
| 12071 | } | |
| 12072 | ||
| 721956f4 AM |
12073 | /* See whether we can group stub sections together. Grouping stub |
| 12074 | sections may result in fewer stubs. More importantly, we need to | |
| 12075 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12076 | .fini output sections respectively, because glibc splits the | |
| 12077 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12078 | the middle of a function is not a good idea. */ | |
| 12079 | ||
| 6f20ed8a AM |
12080 | static bfd_boolean |
| 12081 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12082 | bfd_size_type stub_group_size, |
| 12083 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12084 | { |
| 6f20ed8a AM |
12085 | struct ppc_link_hash_table *htab; |
| 12086 | asection *osec; | |
| 7c8fe5c4 AM |
12087 | bfd_boolean suppress_size_errors; |
| 12088 | ||
| 6f20ed8a AM |
12089 | htab = ppc_hash_table (info); |
| 12090 | if (htab == NULL) | |
| 12091 | return FALSE; | |
| 12092 | ||
| 7c8fe5c4 | 12093 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12094 | if (stub_group_size == 1) |
| 12095 | { | |
| 12096 | /* Default values. */ | |
| 12097 | if (stubs_always_before_branch) | |
| 09f92717 | 12098 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12099 | else |
| 09f92717 | 12100 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12101 | suppress_size_errors = TRUE; |
| 12102 | } | |
| 12103 | ||
| 6f20ed8a | 12104 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12105 | { |
| 6f20ed8a AM |
12106 | asection *tail; |
| 12107 | ||
| 12108 | if (osec->id >= htab->sec_info_arr_size) | |
| 12109 | continue; | |
| 12110 | ||
| 12111 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12112 | while (tail != NULL) |
| 721956f4 | 12113 | { |
| 734b6cf9 AM |
12114 | asection *curr; |
| 12115 | asection *prev; | |
| 12116 | bfd_size_type total; | |
| 12117 | bfd_boolean big_sec; | |
| 12118 | bfd_vma curr_toc; | |
| 6f20ed8a | 12119 | struct map_stub *group; |
| 09f92717 | 12120 | bfd_size_type group_size; |
| 734b6cf9 AM |
12121 | |
| 12122 | curr = tail; | |
| eea6121a | 12123 | total = tail->size; |
| 09f92717 AM |
12124 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12125 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12126 | ? stub_group_size >> 10 : stub_group_size); | |
| 12127 | ||
| 12128 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12129 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12130 | /* xgettext:c-format */ |
| 871b3ab2 | 12131 | _bfd_error_handler (_("%pB section %pA exceeds stub group size"), |
| 4eca0228 | 12132 | tail->owner, tail); |
| 6f20ed8a | 12133 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12134 | |
| 6f20ed8a | 12135 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12136 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12137 | < (ppc64_elf_section_data (prev) != NULL |
| 12138 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12139 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12140 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12141 | curr = prev; |
| 12142 | ||
| 12143 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12144 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12145 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12146 | group_size, in which case we may be toast.) We should |
| 12147 | really be keeping track of the total size of stubs added | |
| 12148 | here, as stubs contribute to the final output section | |
| 12149 | size. That's a little tricky, and this way will only | |
| 12150 | break if stubs added make the total size more than 2^25, | |
| 12151 | ie. for the default stub_group_size, if stubs total more | |
| 12152 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12153 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12154 | if (group == NULL) | |
| 12155 | return FALSE; | |
| 12156 | group->link_sec = curr; | |
| 12157 | group->stub_sec = NULL; | |
| a4b6fadd | 12158 | group->needs_save_res = 0; |
| d4aaa2a0 | 12159 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12160 | group->next = htab->group; |
| 12161 | htab->group = group; | |
| 734b6cf9 | 12162 | do |
| 721956f4 | 12163 | { |
| 6f20ed8a | 12164 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12165 | /* Set up this stub group. */ |
| 6f20ed8a | 12166 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12167 | } |
| 734b6cf9 AM |
12168 | while (tail != curr && (tail = prev) != NULL); |
| 12169 | ||
| 09f92717 | 12170 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12171 | bytes before the stub section can be handled by it too. |
| 12172 | Don't do this if we have a really large section after the | |
| 12173 | stubs, as adding more stubs increases the chance that | |
| 12174 | branches may not reach into the stub section. */ | |
| 12175 | if (!stubs_always_before_branch && !big_sec) | |
| 12176 | { | |
| 12177 | total = 0; | |
| 12178 | while (prev != NULL | |
| 12179 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12180 | < (ppc64_elf_section_data (prev) != NULL |
| 12181 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12182 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12183 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12184 | { |
| 12185 | tail = prev; | |
| 6f20ed8a AM |
12186 | prev = htab->sec_info[tail->id].u.list; |
| 12187 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12188 | } |
| 12189 | } | |
| 12190 | tail = prev; | |
| 721956f4 AM |
12191 | } |
| 12192 | } | |
| 6f20ed8a | 12193 | return TRUE; |
| 721956f4 AM |
12194 | } |
| 12195 | ||
| 58d180e8 AM |
12196 | static const unsigned char glink_eh_frame_cie[] = |
| 12197 | { | |
| 12198 | 0, 0, 0, 16, /* length. */ | |
| 12199 | 0, 0, 0, 0, /* id. */ | |
| 12200 | 1, /* CIE version. */ | |
| 12201 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12202 | 4, /* Code alignment. */ | |
| 12203 | 0x78, /* Data alignment. */ | |
| 12204 | 65, /* RA reg. */ | |
| 12205 | 1, /* Augmentation size. */ | |
| 12206 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12207 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12208 | }; |
| 12209 | ||
| d4aaa2a0 AM |
12210 | static size_t |
| 12211 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12212 | { | |
| 12213 | size_t this_size = 17; | |
| 12214 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12215 | { | |
| 12216 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12217 | if (to_bctrl < 64) | |
| 12218 | this_size += 1; | |
| 12219 | else if (to_bctrl < 256) | |
| 12220 | this_size += 2; | |
| 12221 | else if (to_bctrl < 65536) | |
| 12222 | this_size += 3; | |
| 12223 | else | |
| 12224 | this_size += 5; | |
| 12225 | this_size += 6; | |
| 12226 | } | |
| 12227 | this_size = (this_size + align - 1) & -align; | |
| 12228 | return this_size; | |
| 12229 | } | |
| 12230 | ||
| d969d15f AM |
12231 | /* Stripping output sections is normally done before dynamic section |
| 12232 | symbols have been allocated. This function is called later, and | |
| 12233 | handles cases like htab->brlt which is mapped to its own output | |
| 12234 | section. */ | |
| 12235 | ||
| 12236 | static void | |
| 12237 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12238 | { | |
| 12239 | if (isec->size == 0 | |
| 12240 | && isec->output_section->size == 0 | |
| 53d8967a | 12241 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12242 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12243 | isec->output_section) | |
| 12244 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12245 | { | |
| 12246 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12247 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12248 | info->output_bfd->section_count--; | |
| 12249 | } | |
| 12250 | } | |
| 12251 | ||
| 721956f4 AM |
12252 | /* Determine and set the size of the stub section for a final link. |
| 12253 | ||
| 12254 | The basic idea here is to examine all the relocations looking for | |
| 12255 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12256 | instruction. */ | |
| 12257 | ||
| b34976b6 | 12258 | bfd_boolean |
| e7d1c40c | 12259 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12260 | { |
| 12261 | bfd_size_type stub_group_size; | |
| b34976b6 | 12262 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12263 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12264 | ||
| 4dfe6ac6 NC |
12265 | if (htab == NULL) |
| 12266 | return FALSE; | |
| 12267 | ||
| 0e1862bb | 12268 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12269 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12270 | if (!htab->opd_abi) |
| e7d1c40c AM |
12271 | htab->params->plt_thread_safe = 0; |
| 12272 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12273 | { |
| e2458743 | 12274 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12275 | { |
| 12276 | "pthread_create", | |
| 12277 | /* libstdc++ */ | |
| 12278 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12279 | /* librt */ | |
| 12280 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12281 | "mq_notify", "create_timer", | |
| 12282 | /* libanl */ | |
| 12283 | "getaddrinfo_a", | |
| 12284 | /* libgomp */ | |
| 2300b5a1 | 12285 | "GOMP_parallel", |
| 794e51c0 | 12286 | "GOMP_parallel_start", |
| 2300b5a1 | 12287 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12288 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12289 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12290 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12291 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12292 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12293 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12294 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12295 | "GOMP_parallel_sections", |
| 68ffbac6 | 12296 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12297 | /* libgo */ |
| 12298 | "__go_go", | |
| 794e51c0 AM |
12299 | }; |
| 12300 | unsigned i; | |
| 12301 | ||
| a4b6fadd | 12302 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12303 | { |
| 12304 | struct elf_link_hash_entry *h; | |
| 12305 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12306 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12307 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12308 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12309 | break; |
| 12310 | } | |
| 12311 | } | |
| e7d1c40c AM |
12312 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12313 | if (htab->params->group_size < 0) | |
| 12314 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12315 | else |
| e7d1c40c | 12316 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12317 | |
| 6f20ed8a AM |
12318 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12319 | return FALSE; | |
| 721956f4 | 12320 | |
| c9301e31 AM |
12321 | #define STUB_SHRINK_ITER 20 |
| 12322 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12323 | exit on a stub section shrinking. This is to break out of a | |
| 12324 | pathological case where adding stubs on one iteration decreases | |
| 12325 | section gaps (perhaps due to alignment), which then requires | |
| 12326 | fewer or smaller stubs on the next iteration. */ | |
| 12327 | ||
| 721956f4 AM |
12328 | while (1) |
| 12329 | { | |
| 12330 | bfd *input_bfd; | |
| 12331 | unsigned int bfd_indx; | |
| a4b6fadd | 12332 | struct map_stub *group; |
| 721956f4 AM |
12333 | |
| 12334 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12335 | |
| 12336 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12337 | input_bfd != NULL; | |
| c72f2fb2 | 12338 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12339 | { |
| 12340 | Elf_Internal_Shdr *symtab_hdr; | |
| 12341 | asection *section; | |
| 6cdc0ccc | 12342 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12343 | |
| 0c8d6e5c | 12344 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12345 | continue; |
| 12346 | ||
| 721956f4 | 12347 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12348 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12349 | if (symtab_hdr->sh_info == 0) |
| 12350 | continue; | |
| 12351 | ||
| 721956f4 AM |
12352 | /* Walk over each section attached to the input bfd. */ |
| 12353 | for (section = input_bfd->sections; | |
| 12354 | section != NULL; | |
| 12355 | section = section->next) | |
| 12356 | { | |
| 721956f4 | 12357 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12358 | |
| 12359 | /* If there aren't any relocs, then there's nothing more | |
| 12360 | to do. */ | |
| 12361 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12362 | || (section->flags & SEC_ALLOC) == 0 |
| 12363 | || (section->flags & SEC_LOAD) == 0 | |
| 12364 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12365 | || section->reloc_count == 0) |
| 12366 | continue; | |
| 12367 | ||
| 12368 | /* If this section is a link-once section that will be | |
| 12369 | discarded, then don't create any stubs. */ | |
| 12370 | if (section->output_section == NULL | |
| 927be08e | 12371 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12372 | continue; |
| 12373 | ||
| 1e2f5b6e AM |
12374 | /* Get the relocs. */ |
| 12375 | internal_relocs | |
| 4ce794b7 | 12376 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12377 | info->keep_memory); |
| 721956f4 | 12378 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12379 | goto error_ret_free_local; |
| 721956f4 AM |
12380 | |
| 12381 | /* Now examine each relocation. */ | |
| 12382 | irela = internal_relocs; | |
| 12383 | irelaend = irela + section->reloc_count; | |
| 12384 | for (; irela < irelaend; irela++) | |
| 12385 | { | |
| 4ce794b7 AM |
12386 | enum elf_ppc64_reloc_type r_type; |
| 12387 | unsigned int r_indx; | |
| 721956f4 AM |
12388 | enum ppc_stub_type stub_type; |
| 12389 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12390 | asection *sym_sec, *code_sec; |
| e054468f | 12391 | bfd_vma sym_value, code_value; |
| 721956f4 | 12392 | bfd_vma destination; |
| 6911b7dc | 12393 | unsigned long local_off; |
| 8843416a | 12394 | bfd_boolean ok_dest; |
| 721956f4 | 12395 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12396 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12397 | struct elf_link_hash_entry *h; |
| 12398 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12399 | char *stub_name; |
| 12400 | const asection *id_sec; | |
| 74f0fb50 | 12401 | struct _opd_sec_data *opd; |
| e054468f | 12402 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12403 | |
| 12404 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12405 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12406 | ||
| 4ce794b7 | 12407 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12408 | { |
| 12409 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12410 | goto error_ret_free_internal; |
| 721956f4 AM |
12411 | } |
| 12412 | ||
| 12413 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12414 | if (r_type != R_PPC64_REL24 |
| 12415 | && r_type != R_PPC64_REL14 | |
| 12416 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12417 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12418 | continue; |
| 12419 | ||
| 12420 | /* Now determine the call target, its name, value, | |
| 12421 | section. */ | |
| 411e1bfb AM |
12422 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12423 | r_indx, input_bfd)) | |
| 12424 | goto error_ret_free_internal; | |
| 12425 | hash = (struct ppc_link_hash_entry *) h; | |
| 12426 | ||
| 8843416a | 12427 | ok_dest = FALSE; |
| 8387904d | 12428 | fdh = NULL; |
| 7fe2b9a6 | 12429 | sym_value = 0; |
| 411e1bfb | 12430 | if (hash == NULL) |
| 721956f4 | 12431 | { |
| 411e1bfb | 12432 | sym_value = sym->st_value; |
| c27b8c2a AM |
12433 | if (sym_sec != NULL |
| 12434 | && sym_sec->output_section != NULL) | |
| 12435 | ok_dest = TRUE; | |
| 721956f4 | 12436 | } |
| 7fe2b9a6 AM |
12437 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12438 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12439 | { | |
| 12440 | sym_value = hash->elf.root.u.def.value; | |
| 12441 | if (sym_sec->output_section != NULL) | |
| 12442 | ok_dest = TRUE; | |
| 12443 | } | |
| 12444 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12445 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12446 | { |
| 99877b66 | 12447 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12448 | use the func descriptor sym instead if it is |
| 12449 | defined. */ | |
| ceb1f1ef | 12450 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12451 | && hash->oh != NULL) |
| 8387904d | 12452 | { |
| 8c5b4e52 | 12453 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12454 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12455 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12456 | { | |
| 12457 | sym_sec = fdh->elf.root.u.def.section; | |
| 12458 | sym_value = fdh->elf.root.u.def.value; | |
| 12459 | if (sym_sec->output_section != NULL) | |
| 12460 | ok_dest = TRUE; | |
| 12461 | } | |
| 99877b66 AM |
12462 | else |
| 12463 | fdh = NULL; | |
| 8387904d | 12464 | } |
| 7fe2b9a6 AM |
12465 | } |
| 12466 | else | |
| 12467 | { | |
| 12468 | bfd_set_error (bfd_error_bad_value); | |
| 12469 | goto error_ret_free_internal; | |
| 721956f4 AM |
12470 | } |
| 12471 | ||
| 8843416a | 12472 | destination = 0; |
| 6911b7dc | 12473 | local_off = 0; |
| 8843416a AM |
12474 | if (ok_dest) |
| 12475 | { | |
| 12476 | sym_value += irela->r_addend; | |
| 12477 | destination = (sym_value | |
| 12478 | + sym_sec->output_offset | |
| 12479 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12480 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12481 | ? hash->elf.other | |
| 12482 | : sym->st_other); | |
| 8843416a AM |
12483 | } |
| 12484 | ||
| 8387904d | 12485 | code_sec = sym_sec; |
| e054468f | 12486 | code_value = sym_value; |
| 74f0fb50 AM |
12487 | opd = get_opd_info (sym_sec); |
| 12488 | if (opd != NULL) | |
| 8387904d AM |
12489 | { |
| 12490 | bfd_vma dest; | |
| 12491 | ||
| 74f0fb50 | 12492 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12493 | { |
| 51aecdc5 | 12494 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12495 | if (adjust == -1) |
| 12496 | continue; | |
| e054468f | 12497 | code_value += adjust; |
| 8387904d AM |
12498 | sym_value += adjust; |
| 12499 | } | |
| 12500 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12501 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12502 | if (dest != (bfd_vma) -1) |
| 12503 | { | |
| 12504 | destination = dest; | |
| 12505 | if (fdh != NULL) | |
| 12506 | { | |
| 12507 | /* Fixup old ABI sym to point at code | |
| 12508 | entry. */ | |
| 99877b66 | 12509 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12510 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12511 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12512 | } |
| 12513 | } | |
| 12514 | } | |
| 12515 | ||
| 721956f4 | 12516 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12517 | plt_ent = NULL; |
| 721956f4 | 12518 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12519 | &plt_ent, destination, |
| 12520 | local_off); | |
| ad8e1ba5 AM |
12521 | |
| 12522 | if (stub_type != ppc_stub_plt_call) | |
| 12523 | { | |
| 12524 | /* Check whether we need a TOC adjusting stub. | |
| 12525 | Since the linker pastes together pieces from | |
| 12526 | different object files when creating the | |
| 12527 | _init and _fini functions, it may be that a | |
| 12528 | call to what looks like a local sym is in | |
| 12529 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12530 | if (code_sec != NULL |
| 12531 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12532 | && (htab->sec_info[code_sec->id].toc_off |
| 12533 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12534 | && (code_sec->has_toc_reloc |
| 12535 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12536 | stub_type = ppc_stub_long_branch_r2off; |
| 12537 | } | |
| 12538 | ||
| 721956f4 AM |
12539 | if (stub_type == ppc_stub_none) |
| 12540 | continue; | |
| 12541 | ||
| 411e1bfb AM |
12542 | /* __tls_get_addr calls might be eliminated. */ |
| 12543 | if (stub_type != ppc_stub_plt_call | |
| 12544 | && hash != NULL | |
| 8387904d AM |
12545 | && (hash == htab->tls_get_addr |
| 12546 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12547 | && section->has_tls_reloc |
| 12548 | && irela != internal_relocs) | |
| 12549 | { | |
| 12550 | /* Get tls info. */ | |
| f961d9dd | 12551 | unsigned char *tls_mask; |
| 411e1bfb | 12552 | |
| 3a71aa26 | 12553 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12554 | irela - 1, input_bfd)) |
| 12555 | goto error_ret_free_internal; | |
| e7b938ca | 12556 | if (*tls_mask != 0) |
| 411e1bfb AM |
12557 | continue; |
| 12558 | } | |
| 12559 | ||
| f378ab09 | 12560 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12561 | { |
| 6e1816be AM |
12562 | if (!htab->opd_abi |
| 12563 | && htab->params->plt_localentry0 != 0 | |
| 12564 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12565 | htab->has_plt_localentry0 = 1; | |
| 12566 | else if (irela + 1 < irelaend | |
| 12567 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12568 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12569 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12570 | { |
| 12571 | if (!tocsave_find (htab, INSERT, | |
| 12572 | &local_syms, irela + 1, input_bfd)) | |
| 12573 | goto error_ret_free_internal; | |
| 12574 | } | |
| f378ab09 AM |
12575 | else |
| 12576 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12577 | } |
| 3b421ab3 | 12578 | |
| 721956f4 | 12579 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12580 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12581 | |
| 12582 | /* Get the name of this stub. */ | |
| 12583 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12584 | if (!stub_name) | |
| 12585 | goto error_ret_free_internal; | |
| 12586 | ||
| 12587 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12588 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12589 | if (stub_entry != NULL) |
| 12590 | { | |
| 12591 | /* The proper stub has already been created. */ | |
| 12592 | free (stub_name); | |
| 794e51c0 AM |
12593 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12594 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12595 | continue; |
| 12596 | } | |
| 12597 | ||
| 25f53a85 | 12598 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12599 | if (stub_entry == NULL) |
| 12600 | { | |
| 12601 | free (stub_name); | |
| 6cdc0ccc AM |
12602 | error_ret_free_internal: |
| 12603 | if (elf_section_data (section)->relocs == NULL) | |
| 12604 | free (internal_relocs); | |
| 12605 | error_ret_free_local: | |
| 12606 | if (local_syms != NULL | |
| 12607 | && (symtab_hdr->contents | |
| 12608 | != (unsigned char *) local_syms)) | |
| 12609 | free (local_syms); | |
| b34976b6 | 12610 | return FALSE; |
| 721956f4 AM |
12611 | } |
| 12612 | ||
| ad8e1ba5 | 12613 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12614 | if (stub_type != ppc_stub_plt_call |
| 12615 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12616 | { |
| 12617 | stub_entry->target_value = code_value; | |
| 12618 | stub_entry->target_section = code_sec; | |
| 12619 | } | |
| 12620 | else | |
| 12621 | { | |
| 12622 | stub_entry->target_value = sym_value; | |
| 12623 | stub_entry->target_section = sym_sec; | |
| 12624 | } | |
| 721956f4 | 12625 | stub_entry->h = hash; |
| e054468f | 12626 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12627 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12628 | |
| 12629 | if (stub_entry->h != NULL) | |
| 12630 | htab->stub_globals += 1; | |
| 721956f4 AM |
12631 | } |
| 12632 | ||
| 12633 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12634 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12635 | free (internal_relocs); |
| 721956f4 | 12636 | } |
| 6cdc0ccc AM |
12637 | |
| 12638 | if (local_syms != NULL | |
| 12639 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12640 | { | |
| 12641 | if (!info->keep_memory) | |
| 12642 | free (local_syms); | |
| 12643 | else | |
| 12644 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12645 | } | |
| 721956f4 AM |
12646 | } |
| 12647 | ||
| 5c3dead3 | 12648 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12649 | stub sections. */ |
| d4aaa2a0 AM |
12650 | for (group = htab->group; group != NULL; group = group->next) |
| 12651 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12652 | { |
| d4aaa2a0 AM |
12653 | asection *stub_sec = group->stub_sec; |
| 12654 | ||
| ea3d7d1c AM |
12655 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12656 | || stub_sec->rawsize < stub_sec->size) | |
| 12657 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12658 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12659 | stub_sec->size = 0; |
| 12660 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12661 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12662 | } |
| eea6121a | 12663 | |
| ba21f564 AM |
12664 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12665 | || htab->brlt->rawsize < htab->brlt->size) | |
| 12666 | htab->brlt->rawsize = htab->brlt->size; | |
| eea6121a | 12667 | htab->brlt->size = 0; |
| 84f5d08e AM |
12668 | htab->brlt->reloc_count = 0; |
| 12669 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12670 | if (htab->relbrlt != NULL) |
| eea6121a | 12671 | htab->relbrlt->size = 0; |
| 721956f4 | 12672 | |
| 63bc6f6c | 12673 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12674 | |
| a4b6fadd AM |
12675 | for (group = htab->group; group != NULL; group = group->next) |
| 12676 | if (group->needs_save_res) | |
| 12677 | group->stub_sec->size += htab->sfpr->size; | |
| 12678 | ||
| 176a0d42 AM |
12679 | if (info->emitrelocations |
| 12680 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12681 | { | |
| 12682 | htab->glink->reloc_count = 1; | |
| 12683 | htab->glink->flags |= SEC_RELOC; | |
| 12684 | } | |
| 12685 | ||
| 58d180e8 AM |
12686 | if (htab->glink_eh_frame != NULL |
| 12687 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 2d0d44d5 | 12688 | && htab->glink_eh_frame->output_section->size > 8) |
| 58d180e8 | 12689 | { |
| 2e0ce1c8 | 12690 | size_t size = 0, align = 4; |
| 58d180e8 | 12691 | |
| d4aaa2a0 AM |
12692 | for (group = htab->group; group != NULL; group = group->next) |
| 12693 | if (group->stub_sec != NULL) | |
| 12694 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 12695 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 12696 | size += (24 + align - 1) & -align; |
| 58d180e8 | 12697 | if (size != 0) |
| 2e0ce1c8 AM |
12698 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 12699 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 12700 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
12701 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12702 | htab->glink_eh_frame->size = size; | |
| 12703 | } | |
| 12704 | ||
| e7d1c40c | 12705 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
12706 | for (group = htab->group; group != NULL; group = group->next) |
| 12707 | if (group->stub_sec != NULL) | |
| 691d2e9a AM |
12708 | { |
| 12709 | int align = abs (htab->params->plt_stub_align); | |
| 12710 | group->stub_sec->size | |
| 12711 | = (group->stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 12712 | } | |
| d4aaa2a0 AM |
12713 | |
| 12714 | for (group = htab->group; group != NULL; group = group->next) | |
| 12715 | if (group->stub_sec != NULL | |
| 12716 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 12717 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 12718 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
12719 | break; |
| 12720 | ||
| d4aaa2a0 | 12721 | if (group == NULL |
| ba21f564 AM |
12722 | && (htab->brlt->rawsize == htab->brlt->size |
| 12723 | || (htab->stub_iteration > STUB_SHRINK_ITER | |
| 12724 | && htab->brlt->rawsize > htab->brlt->size)) | |
| 58d180e8 AM |
12725 | && (htab->glink_eh_frame == NULL |
| 12726 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12727 | break; |
| 12728 | ||
| 721956f4 | 12729 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12730 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12731 | } |
| 12732 | ||
| da44f4e5 AM |
12733 | if (htab->glink_eh_frame != NULL |
| 12734 | && htab->glink_eh_frame->size != 0) | |
| 12735 | { | |
| 12736 | bfd_vma val; | |
| 12737 | bfd_byte *p, *last_fde; | |
| 12738 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 12739 | struct map_stub *group; |
| da44f4e5 AM |
12740 | |
| 12741 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12742 | if (p == NULL) | |
| 12743 | return FALSE; | |
| 12744 | htab->glink_eh_frame->contents = p; | |
| 12745 | last_fde = p; | |
| 2e0ce1c8 | 12746 | align = 4; |
| da44f4e5 AM |
12747 | |
| 12748 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12749 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 12750 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 12751 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 12752 | p += last_fde_len + 4; |
| da44f4e5 | 12753 | |
| d4aaa2a0 AM |
12754 | for (group = htab->group; group != NULL; group = group->next) |
| 12755 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
12756 | { |
| 12757 | last_fde = p; | |
| d4aaa2a0 | 12758 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 12759 | /* FDE length. */ |
| 2e0ce1c8 | 12760 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12761 | p += 4; |
| 12762 | /* CIE pointer. */ | |
| 12763 | val = p - htab->glink_eh_frame->contents; | |
| 12764 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12765 | p += 4; | |
| 12766 | /* Offset to stub section, written later. */ | |
| 12767 | p += 4; | |
| 12768 | /* stub section size. */ | |
| d4aaa2a0 | 12769 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
12770 | p += 4; |
| 12771 | /* Augmentation. */ | |
| 12772 | p += 1; | |
| d4aaa2a0 AM |
12773 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 12774 | { | |
| 12775 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12776 | ||
| 12777 | /* This FDE needs more than just the default. | |
| 12778 | Describe __tls_get_addr_opt stub LR. */ | |
| 12779 | if (to_bctrl < 64) | |
| 12780 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 12781 | else if (to_bctrl < 256) | |
| 12782 | { | |
| 12783 | *p++ = DW_CFA_advance_loc1; | |
| 12784 | *p++ = to_bctrl; | |
| 12785 | } | |
| 12786 | else if (to_bctrl < 65536) | |
| 12787 | { | |
| 12788 | *p++ = DW_CFA_advance_loc2; | |
| 12789 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 12790 | p += 2; | |
| 12791 | } | |
| 12792 | else | |
| 12793 | { | |
| 12794 | *p++ = DW_CFA_advance_loc4; | |
| 12795 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 12796 | p += 4; | |
| 12797 | } | |
| 12798 | *p++ = DW_CFA_offset_extended_sf; | |
| 12799 | *p++ = 65; | |
| 12800 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 12801 | *p++ = DW_CFA_advance_loc + 4; | |
| 12802 | *p++ = DW_CFA_restore_extended; | |
| 12803 | *p++ = 65; | |
| 12804 | } | |
| da44f4e5 | 12805 | /* Pad. */ |
| d4aaa2a0 | 12806 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
12807 | } |
| 12808 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12809 | { | |
| 12810 | last_fde = p; | |
| 2e0ce1c8 | 12811 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 12812 | /* FDE length. */ |
| 2e0ce1c8 | 12813 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12814 | p += 4; |
| 12815 | /* CIE pointer. */ | |
| 12816 | val = p - htab->glink_eh_frame->contents; | |
| 12817 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12818 | p += 4; | |
| 12819 | /* Offset to .glink, written later. */ | |
| 12820 | p += 4; | |
| 12821 | /* .glink size. */ | |
| 12822 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12823 | p += 4; | |
| 12824 | /* Augmentation. */ | |
| 12825 | p += 1; | |
| 12826 | ||
| 12827 | *p++ = DW_CFA_advance_loc + 1; | |
| 12828 | *p++ = DW_CFA_register; | |
| 12829 | *p++ = 65; | |
| 9f08fa5c | 12830 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 12831 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
12832 | *p++ = DW_CFA_restore_extended; |
| 12833 | *p++ = 65; | |
| 2e0ce1c8 | 12834 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
12835 | } |
| 12836 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12837 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12838 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 12839 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 12840 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 12841 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
12842 | htab->glink_eh_frame->size = size + pad; |
| 12843 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12844 | } | |
| 12845 | ||
| d969d15f AM |
12846 | maybe_strip_output (info, htab->brlt); |
| 12847 | if (htab->glink_eh_frame != NULL) | |
| 12848 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12849 | |
| b34976b6 | 12850 | return TRUE; |
| 721956f4 AM |
12851 | } |
| 12852 | ||
| 12853 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12854 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12855 | |
| 805fc799 | 12856 | bfd_vma |
| 1c865ab2 | 12857 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12858 | { |
| 805fc799 | 12859 | asection *s; |
| a27e685f | 12860 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12861 | |
| 43417696 AM |
12862 | if (info != NULL) |
| 12863 | { | |
| 12864 | struct elf_link_hash_entry *h; | |
| 12865 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12866 | ||
| 12867 | if (is_elf_hash_table (htab) | |
| 12868 | && htab->hgot != NULL) | |
| 12869 | h = htab->hgot; | |
| 12870 | else | |
| 12871 | { | |
| 12872 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12873 | if (is_elf_hash_table (htab)) | |
| 12874 | htab->hgot = h; | |
| 12875 | } | |
| 12876 | if (h != NULL | |
| 12877 | && h->root.type == bfd_link_hash_defined | |
| 12878 | && !h->root.linker_def | |
| 12879 | && (!is_elf_hash_table (htab) | |
| 12880 | || h->def_regular)) | |
| 12881 | { | |
| 12882 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12883 | + h->root.u.def.section->output_offset | |
| 12884 | + h->root.u.def.section->output_section->vma); | |
| 12885 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12886 | return TOCstart; | |
| 12887 | } | |
| 12888 | } | |
| 12889 | ||
| 805fc799 AM |
12890 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12891 | order. The TOC starts where the first of these sections starts. */ | |
| 12892 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12893 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12894 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12895 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12896 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12897 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12898 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12899 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12900 | { |
| 12901 | /* This may happen for | |
| 12902 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12903 | .toc directive | |
| 12904 | o bad linker script | |
| 12905 | o --gc-sections and empty TOC sections | |
| 12906 | ||
| 12907 | FIXME: Warn user? */ | |
| 12908 | ||
| 12909 | /* Look for a likely section. We probably won't even be | |
| 12910 | using TOCstart. */ | |
| 12911 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12912 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12913 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12914 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12915 | break; | |
| 721956f4 | 12916 | if (s == NULL) |
| 805fc799 | 12917 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12918 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12919 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12920 | break; | |
| 721956f4 | 12921 | if (s == NULL) |
| 805fc799 | 12922 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12923 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12924 | == SEC_ALLOC) | |
| 805fc799 | 12925 | break; |
| 721956f4 | 12926 | if (s == NULL) |
| 805fc799 | 12927 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12928 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12929 | break; |
| 12930 | } | |
| 721956f4 | 12931 | |
| 805fc799 AM |
12932 | TOCstart = 0; |
| 12933 | if (s != NULL) | |
| 12934 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12935 | |
| a27e685f AM |
12936 | /* Force alignment. */ |
| 12937 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12938 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12939 | _bfd_set_gp_value (obfd, TOCstart); |
| 12940 | ||
| 810d4e75 | 12941 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12942 | { |
| 12943 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12944 | ||
| 810d4e75 AM |
12945 | if (htab != NULL) |
| 12946 | { | |
| 12947 | if (htab->elf.hgot != NULL) | |
| 12948 | { | |
| a27e685f | 12949 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12950 | htab->elf.hgot->root.u.def.section = s; |
| 12951 | } | |
| 12952 | } | |
| 12953 | else | |
| 1c865ab2 | 12954 | { |
| 810d4e75 AM |
12955 | struct bfd_link_hash_entry *bh = NULL; |
| 12956 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12957 | s, TOC_BASE_OFF - adjust, |
| 12958 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12959 | } |
| 12960 | } | |
| 805fc799 | 12961 | return TOCstart; |
| 721956f4 AM |
12962 | } |
| 12963 | ||
| a345bc8d AM |
12964 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12965 | write out any global entry stubs. */ | |
| 12966 | ||
| 12967 | static bfd_boolean | |
| 12968 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12969 | { | |
| 12970 | struct bfd_link_info *info; | |
| 12971 | struct ppc_link_hash_table *htab; | |
| 12972 | struct plt_entry *pent; | |
| 12973 | asection *s; | |
| 12974 | ||
| 12975 | if (h->root.type == bfd_link_hash_indirect) | |
| 12976 | return TRUE; | |
| 12977 | ||
| 12978 | if (!h->pointer_equality_needed) | |
| 12979 | return TRUE; | |
| 12980 | ||
| 12981 | if (h->def_regular) | |
| 12982 | return TRUE; | |
| 12983 | ||
| 12984 | info = inf; | |
| 12985 | htab = ppc_hash_table (info); | |
| 12986 | if (htab == NULL) | |
| 12987 | return FALSE; | |
| 12988 | ||
| 9e390558 | 12989 | s = htab->global_entry; |
| a345bc8d AM |
12990 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 12991 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12992 | && pent->addend == 0) | |
| 12993 | { | |
| 12994 | bfd_byte *p; | |
| 12995 | asection *plt; | |
| 12996 | bfd_vma off; | |
| 12997 | ||
| a345bc8d | 12998 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12999 | plt = htab->elf.splt; |
| a345bc8d AM |
13000 | if (!htab->elf.dynamic_sections_created |
| 13001 | || h->dynindx == -1) | |
| 33e44f2e | 13002 | plt = htab->elf.iplt; |
| a345bc8d AM |
13003 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 13004 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 13005 | ||
| 13006 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13007 | { | |
| 13008 | info->callbacks->einfo | |
| 13009 | (_("%P: linkage table error against `%T'\n"), | |
| 13010 | h->root.root.string); | |
| 13011 | bfd_set_error (bfd_error_bad_value); | |
| 13012 | htab->stub_error = TRUE; | |
| 13013 | } | |
| 13014 | ||
| 7341d5e2 AM |
13015 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13016 | if (htab->params->emit_stub_syms) | |
| 13017 | { | |
| 13018 | size_t len = strlen (h->root.root.string); | |
| 13019 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13020 | ||
| 13021 | if (name == NULL) | |
| 13022 | return FALSE; | |
| 13023 | ||
| 13024 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13025 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13026 | if (h == NULL) | |
| 13027 | return FALSE; | |
| 13028 | if (h->root.type == bfd_link_hash_new) | |
| 13029 | { | |
| 13030 | h->root.type = bfd_link_hash_defined; | |
| 13031 | h->root.u.def.section = s; | |
| 13032 | h->root.u.def.value = p - s->contents; | |
| 13033 | h->ref_regular = 1; | |
| 13034 | h->def_regular = 1; | |
| 13035 | h->ref_regular_nonweak = 1; | |
| 13036 | h->forced_local = 1; | |
| 13037 | h->non_elf = 0; | |
| 2ec55de3 | 13038 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13039 | } |
| 13040 | } | |
| 13041 | ||
| a345bc8d AM |
13042 | if (PPC_HA (off) != 0) |
| 13043 | { | |
| 13044 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13045 | p += 4; | |
| 13046 | } | |
| 13047 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13048 | p += 4; | |
| 13049 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13050 | p += 4; | |
| 407aa07c | 13051 | bfd_put_32 (s->owner, BCTR, p); |
| a345bc8d AM |
13052 | break; |
| 13053 | } | |
| 13054 | return TRUE; | |
| 13055 | } | |
| 13056 | ||
| 721956f4 AM |
13057 | /* Build all the stubs associated with the current output file. |
| 13058 | The stubs are kept in a hash table attached to the main linker | |
| 13059 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13060 | ||
| b34976b6 | 13061 | bfd_boolean |
| e7d1c40c | 13062 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13063 | char **stats) |
| 5d1634d7 AM |
13064 | { |
| 13065 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13066 | struct map_stub *group; |
| 721956f4 | 13067 | asection *stub_sec; |
| 5d1634d7 | 13068 | bfd_byte *p; |
| e717da7e | 13069 | int stub_sec_count = 0; |
| 5d1634d7 | 13070 | |
| 4dfe6ac6 NC |
13071 | if (htab == NULL) |
| 13072 | return FALSE; | |
| 13073 | ||
| eea6121a | 13074 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13075 | for (group = htab->group; group != NULL; group = group->next) |
| 13076 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13077 | && stub_sec->size != 0) |
| e717da7e | 13078 | { |
| e7d1c40c | 13079 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13080 | if (stub_sec->contents == NULL) |
| 13081 | return FALSE; | |
| eea6121a | 13082 | stub_sec->size = 0; |
| e717da7e | 13083 | } |
| 5d1634d7 | 13084 | |
| 23eb7e01 | 13085 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13086 | { |
| 9f951329 | 13087 | unsigned int indx; |
| ad8e1ba5 | 13088 | bfd_vma plt0; |
| 9f951329 | 13089 | |
| 721956f4 | 13090 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13091 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13092 | { |
| 13093 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13094 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13095 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13096 | if (h == NULL) |
| 13097 | return FALSE; | |
| 13098 | if (h->root.type == bfd_link_hash_new) | |
| 13099 | { | |
| 13100 | h->root.type = bfd_link_hash_defined; | |
| 13101 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13102 | h->root.u.def.value = 8; |
| f5385ebf AM |
13103 | h->ref_regular = 1; |
| 13104 | h->def_regular = 1; | |
| 13105 | h->ref_regular_nonweak = 1; | |
| 13106 | h->forced_local = 1; | |
| 13107 | h->non_elf = 0; | |
| 2ec55de3 | 13108 | h->root.linker_def = 1; |
| 97b639ba AM |
13109 | } |
| 13110 | } | |
| 33e44f2e AM |
13111 | plt0 = (htab->elf.splt->output_section->vma |
| 13112 | + htab->elf.splt->output_offset | |
| 13113 | - 16); | |
| 176a0d42 AM |
13114 | if (info->emitrelocations) |
| 13115 | { | |
| 13116 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13117 | if (r == NULL) | |
| 13118 | return FALSE; | |
| 13119 | r->r_offset = (htab->glink->output_offset | |
| 13120 | + htab->glink->output_section->vma); | |
| 13121 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13122 | r->r_addend = plt0; | |
| 13123 | } | |
| 4ce794b7 | 13124 | p = htab->glink->contents; |
| 176a0d42 | 13125 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13126 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13127 | p += 8; | |
| b9e5796b AM |
13128 | if (htab->opd_abi) |
| 13129 | { | |
| 13130 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13131 | p += 4; | |
| 13132 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13133 | p += 4; | |
| 13134 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13135 | p += 4; | |
| 13136 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13137 | p += 4; | |
| 13138 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13139 | p += 4; | |
| 13140 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13141 | p += 4; | |
| 13142 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13143 | p += 4; | |
| 13144 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13145 | p += 4; | |
| 13146 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13147 | p += 4; | |
| 13148 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13149 | p += 4; | |
| 13150 | } | |
| 13151 | else | |
| 13152 | { | |
| 13153 | bfd_put_32 (htab->glink->owner, MFLR_R0, 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; | |
| f378ab09 AM |
13159 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13160 | p += 4; | |
| b9e5796b AM |
13161 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13162 | p += 4; | |
| 13163 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13164 | p += 4; | |
| 13165 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13166 | p += 4; | |
| 13167 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13168 | p += 4; | |
| 13169 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13170 | p += 4; | |
| 13171 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13172 | p += 4; | |
| 13173 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13174 | p += 4; | |
| 13175 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13176 | p += 4; | |
| 13177 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13178 | p += 4; | |
| 13179 | } | |
| 407aa07c AM |
13180 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| 13181 | p += 4; | |
| c75bc4f7 | 13182 | BFD_ASSERT (p == htab->glink->contents + GLINK_PLTRESOLVE_SIZE (htab)); |
| ad8e1ba5 | 13183 | |
| 9f951329 AM |
13184 | /* Build the .glink lazy link call stubs. */ |
| 13185 | indx = 0; | |
| 9e390558 | 13186 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 | 13187 | { |
| b9e5796b | 13188 | if (htab->opd_abi) |
| 9f951329 | 13189 | { |
| b9e5796b AM |
13190 | if (indx < 0x8000) |
| 13191 | { | |
| 13192 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13193 | p += 4; | |
| 13194 | } | |
| 13195 | else | |
| 13196 | { | |
| 13197 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13198 | p += 4; | |
| 13199 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13200 | p); | |
| 13201 | p += 4; | |
| 13202 | } | |
| 9f951329 | 13203 | } |
| 4ce794b7 | 13204 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13205 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13206 | indx++; |
| 9f951329 AM |
13207 | p += 4; |
| 13208 | } | |
| 5d1634d7 | 13209 | } |
| 5d1634d7 | 13210 | |
| 9e390558 AM |
13211 | /* Build .glink global entry stubs. */ |
| 13212 | if (htab->global_entry != NULL && htab->global_entry->size != 0) | |
| 13213 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); | |
| 13214 | ||
| 7341d5e2 | 13215 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13216 | { |
| 4ce794b7 | 13217 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13218 | htab->brlt->size); |
| 4ce794b7 | 13219 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13220 | return FALSE; |
| 721956f4 | 13221 | } |
| ee75fd95 | 13222 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13223 | { |
| 13224 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13225 | htab->relbrlt->size); |
| 63bc6f6c AM |
13226 | if (htab->relbrlt->contents == NULL) |
| 13227 | return FALSE; | |
| 13228 | } | |
| 5d1634d7 | 13229 | |
| 721956f4 AM |
13230 | /* Build the stubs as directed by the stub hash table. */ |
| 13231 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13232 | |
| a4b6fadd AM |
13233 | for (group = htab->group; group != NULL; group = group->next) |
| 13234 | if (group->needs_save_res) | |
| 13235 | { | |
| 13236 | stub_sec = group->stub_sec; | |
| 13237 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13238 | htab->sfpr->size); | |
| 13239 | if (htab->params->emit_stub_syms) | |
| 13240 | { | |
| 13241 | unsigned int i; | |
| 13242 | ||
| 13243 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13244 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13245 | return FALSE; | |
| 13246 | } | |
| 13247 | stub_sec->size += htab->sfpr->size; | |
| 13248 | } | |
| 13249 | ||
| aa8a7074 AM |
13250 | if (htab->relbrlt != NULL) |
| 13251 | htab->relbrlt->reloc_count = 0; | |
| 13252 | ||
| e7d1c40c | 13253 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13254 | for (group = htab->group; group != NULL; group = group->next) |
| 13255 | if ((stub_sec = group->stub_sec) != NULL) | |
| 691d2e9a AM |
13256 | { |
| 13257 | int align = abs (htab->params->plt_stub_align); | |
| 13258 | stub_sec->size = (stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 13259 | } | |
| 794e51c0 | 13260 | |
| d4aaa2a0 AM |
13261 | for (group = htab->group; group != NULL; group = group->next) |
| 13262 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13263 | { |
| 13264 | stub_sec_count += 1; | |
| c9301e31 AM |
13265 | if (stub_sec->rawsize != stub_sec->size |
| 13266 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13267 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13268 | break; |
| 13269 | } | |
| 5d1634d7 | 13270 | |
| 25516cc5 | 13271 | if (group != NULL) |
| 5d1634d7 | 13272 | { |
| b34976b6 | 13273 | htab->stub_error = TRUE; |
| 8de848d8 | 13274 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13275 | } |
| 721956f4 | 13276 | |
| d2a300cf AM |
13277 | if (htab->stub_error) |
| 13278 | return FALSE; | |
| 13279 | ||
| 13280 | if (stats != NULL) | |
| 13281 | { | |
| db84fff3 | 13282 | size_t len; |
| d2a300cf AM |
13283 | *stats = bfd_malloc (500); |
| 13284 | if (*stats == NULL) | |
| 13285 | return FALSE; | |
| 13286 | ||
| db84fff3 AM |
13287 | len = sprintf (*stats, |
| 13288 | ngettext ("linker stubs in %u group\n", | |
| 13289 | "linker stubs in %u groups\n", | |
| 13290 | stub_sec_count), | |
| 13291 | stub_sec_count); | |
| 13292 | sprintf (*stats + len, _(" branch %lu\n" | |
| 13293 | " toc adjust %lu\n" | |
| 13294 | " long branch %lu\n" | |
| 13295 | " long toc adj %lu\n" | |
| 13296 | " plt call %lu\n" | |
| 13297 | " plt call toc %lu\n" | |
| 13298 | " global entry %lu"), | |
| 4ce794b7 AM |
13299 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13300 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13301 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13302 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13303 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13304 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13305 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13306 | } |
| 13307 | return TRUE; | |
| 5bd4f169 AM |
13308 | } |
| 13309 | ||
| 60124e18 AM |
13310 | /* What to do when ld finds relocations against symbols defined in |
| 13311 | discarded sections. */ | |
| 13312 | ||
| 13313 | static unsigned int | |
| 13314 | ppc64_elf_action_discarded (asection *sec) | |
| 13315 | { | |
| 13316 | if (strcmp (".opd", sec->name) == 0) | |
| 13317 | return 0; | |
| 13318 | ||
| 13319 | if (strcmp (".toc", sec->name) == 0) | |
| 13320 | return 0; | |
| 13321 | ||
| bce50a28 JJ |
13322 | if (strcmp (".toc1", sec->name) == 0) |
| 13323 | return 0; | |
| 13324 | ||
| 60124e18 AM |
13325 | return _bfd_elf_default_action_discarded (sec); |
| 13326 | } | |
| 13327 | ||
| 5bd4f169 AM |
13328 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13329 | to handle the relocations for a section. | |
| 13330 | ||
| 13331 | The relocs are always passed as Rela structures; if the section | |
| 13332 | actually uses Rel structures, the r_addend field will always be | |
| 13333 | zero. | |
| 13334 | ||
| 13335 | This function is responsible for adjust the section contents as | |
| 13336 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13337 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13338 | necessary. |
| 13339 | ||
| 13340 | This function does not have to worry about setting the reloc | |
| 13341 | address or the reloc symbol index. | |
| 13342 | ||
| 13343 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13344 | ||
| 13345 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13346 | corresponding to the st_shndx field of each local symbol. | |
| 13347 | ||
| 13348 | The global hash table entry for the global symbols can be found | |
| 13349 | via elf_sym_hashes (input_bfd). | |
| 13350 | ||
| 1049f94e | 13351 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13352 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13353 | going to be the section symbol corresponding to the output | |
| 13354 | section, which means that the addend must be adjusted | |
| 13355 | accordingly. */ | |
| 13356 | ||
| b34976b6 | 13357 | static bfd_boolean |
| 4ce794b7 AM |
13358 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13359 | struct bfd_link_info *info, | |
| 13360 | bfd *input_bfd, | |
| 13361 | asection *input_section, | |
| 13362 | bfd_byte *contents, | |
| 13363 | Elf_Internal_Rela *relocs, | |
| 13364 | Elf_Internal_Sym *local_syms, | |
| 13365 | asection **local_sections) | |
| 5bd4f169 | 13366 | { |
| 65f38f15 | 13367 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13368 | Elf_Internal_Shdr *symtab_hdr; |
| 13369 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13370 | Elf_Internal_Rela *rel; |
| c316a17c | 13371 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13372 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13373 | Elf_Internal_Rela outrel; |
| 13374 | bfd_byte *loc; | |
| 411e1bfb | 13375 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13376 | bfd_vma TOCstart; |
| b34976b6 AM |
13377 | bfd_boolean ret = TRUE; |
| 13378 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13379 | /* Assume 'at' branch hints. */ |
| 13380 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13381 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13382 | |
| 65f38f15 | 13383 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13384 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13385 | ppc_howto_init (); |
| 13386 | ||
| 65f38f15 | 13387 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13388 | if (htab == NULL) |
| 13389 | return FALSE; | |
| ee75fd95 AM |
13390 | |
| 13391 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13392 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13393 | return TRUE; |
| 13394 | ||
| 0c8d6e5c | 13395 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13396 | |
| 411e1bfb | 13397 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13398 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13399 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13400 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13401 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13402 | |
| c316a17c | 13403 | rel = wrel = relocs; |
| 5bd4f169 | 13404 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13405 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13406 | { |
| 04c9666a | 13407 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13408 | bfd_vma addend; |
| 5bd4f169 AM |
13409 | bfd_reloc_status_type r; |
| 13410 | Elf_Internal_Sym *sym; | |
| 13411 | asection *sec; | |
| 039b3fef AM |
13412 | struct elf_link_hash_entry *h_elf; |
| 13413 | struct ppc_link_hash_entry *h; | |
| 13414 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13415 | const char *sym_name; |
| 0d4792f7 | 13416 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13417 | bfd_vma toc_addend; |
| f961d9dd AM |
13418 | unsigned char tls_mask, tls_gd, tls_type; |
| 13419 | unsigned char sym_type; | |
| 5bd4f169 | 13420 | bfd_vma relocation; |
| b34976b6 AM |
13421 | bfd_boolean unresolved_reloc; |
| 13422 | bfd_boolean warned; | |
| bc30df16 | 13423 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13424 | unsigned int insn; |
| e11840f9 | 13425 | unsigned int mask; |
| 721956f4 AM |
13426 | struct ppc_stub_hash_entry *stub_entry; |
| 13427 | bfd_vma max_br_offset; | |
| 13428 | bfd_vma from; | |
| c316a17c | 13429 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13430 | reloc_howto_type *howto; |
| 13431 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13432 | |
| c316a17c AM |
13433 | again: |
| 13434 | orig_rel = *rel; | |
| 13435 | ||
| 4ce794b7 | 13436 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13437 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13438 | |
| 13439 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13440 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13441 | proper TOC base to use. */ | |
| 13442 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13443 | && wrel != relocs |
| 13444 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13445 | && is_opd) |
| c316a17c | 13446 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13447 | |
| 4ce794b7 AM |
13448 | sym = NULL; |
| 13449 | sec = NULL; | |
| 039b3fef | 13450 | h_elf = NULL; |
| 4ce794b7 | 13451 | sym_name = NULL; |
| b34976b6 AM |
13452 | unresolved_reloc = FALSE; |
| 13453 | warned = FALSE; | |
| 65f38f15 | 13454 | |
| 0b13192e | 13455 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13456 | { |
| 13457 | /* It's a local symbol. */ | |
| 74f0fb50 | 13458 | struct _opd_sec_data *opd; |
| 4025353c | 13459 | |
| 5bd4f169 AM |
13460 | sym = local_syms + r_symndx; |
| 13461 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13462 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13463 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13464 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13465 | opd = get_opd_info (sec); |
| 13466 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13467 | { |
| 51aecdc5 AM |
13468 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13469 | + rel->r_addend)]; | |
| 4025353c AM |
13470 | if (adjust == -1) |
| 13471 | relocation = 0; | |
| 13472 | else | |
| 4cc603a5 AM |
13473 | { |
| 13474 | /* If this is a relocation against the opd section sym | |
| 13475 | and we have edited .opd, adjust the reloc addend so | |
| 13476 | that ld -r and ld --emit-relocs output is correct. | |
| 13477 | If it is a reloc against some other .opd symbol, | |
| 13478 | then the symbol value will be adjusted later. */ | |
| 13479 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13480 | rel->r_addend += adjust; | |
| 13481 | else | |
| 13482 | relocation += adjust; | |
| 13483 | } | |
| 1e2f5b6e | 13484 | } |
| 5bd4f169 AM |
13485 | } |
| 13486 | else | |
| 13487 | { | |
| 62d887d4 L |
13488 | bfd_boolean ignored; |
| 13489 | ||
| b2a8e766 AM |
13490 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13491 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13492 | h_elf, sec, relocation, |
| 62d887d4 | 13493 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13494 | sym_name = h_elf->root.root.string; |
| 13495 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13496 | if (sec != NULL |
| 13497 | && sec->owner == output_bfd | |
| 13498 | && strcmp (sec->name, ".opd") == 0) | |
| 13499 | { | |
| 13500 | /* This is a symbol defined in a linker script. All | |
| 13501 | such are defined in output sections, even those | |
| 13502 | defined by simple assignment from a symbol defined in | |
| 13503 | an input section. Transfer the symbol to an | |
| 13504 | appropriate input .opd section, so that a branch to | |
| 13505 | this symbol will be mapped to the location specified | |
| 13506 | by the opd entry. */ | |
| 13507 | struct bfd_link_order *lo; | |
| 13508 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13509 | if (lo->type == bfd_indirect_link_order) | |
| 13510 | { | |
| 13511 | asection *isec = lo->u.indirect.section; | |
| 13512 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13513 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13514 | + isec->size)) | |
| 13515 | { | |
| 13516 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13517 | h_elf->root.u.def.section = isec; | |
| 13518 | sec = isec; | |
| 13519 | break; | |
| 13520 | } | |
| 13521 | } | |
| 13522 | } | |
| 5bd4f169 | 13523 | } |
| 039b3fef | 13524 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13525 | |
| dbaa2011 | 13526 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13527 | { |
| 13528 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13529 | input_bfd, input_section, | |
| 13530 | contents + rel->r_offset); | |
| 13531 | wrel->r_offset = rel->r_offset; | |
| 13532 | wrel->r_info = 0; | |
| 13533 | wrel->r_addend = 0; | |
| 13534 | ||
| 13535 | /* For ld -r, remove relocations in debug sections against | |
| dcd2b8a0 | 13536 | symbols defined in discarded sections. Not done for |
| c316a17c AM |
13537 | non-debug to preserve relocs in .eh_frame which the |
| 13538 | eh_frame editing code expects to be present. */ | |
| 13539 | if (bfd_link_relocatable (info) | |
| 13540 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13541 | wrel--; | |
| 13542 | ||
| 13543 | continue; | |
| 13544 | } | |
| ab96bf03 | 13545 | |
| 0e1862bb | 13546 | if (bfd_link_relocatable (info)) |
| c316a17c | 13547 | goto copy_reloc; |
| ab96bf03 | 13548 | |
| f40da81b AM |
13549 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13550 | { | |
| 6f20ed8a | 13551 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13552 | sec = bfd_abs_section_ptr; |
| 13553 | unresolved_reloc = FALSE; | |
| 13554 | } | |
| 13555 | ||
| 951fd09b AM |
13556 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13557 | based on information we collected in tls_optimize. We edit | |
| 13558 | RELOCS so that --emit-relocs will output something sensible | |
| 13559 | for the final instruction stream. */ | |
| 13560 | tls_mask = 0; | |
| 13561 | tls_gd = 0; | |
| 0d4792f7 | 13562 | toc_symndx = 0; |
| 727fc41e AM |
13563 | if (h != NULL) |
| 13564 | tls_mask = h->tls_mask; | |
| 13565 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13566 | { |
| e054468f AM |
13567 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13568 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13569 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13570 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13571 | tls_mask = lgot_masks[r_symndx]; |
| 13572 | } | |
| 13573 | if (tls_mask == 0 | |
| 13574 | && (r_type == R_PPC64_TLS | |
| 13575 | || r_type == R_PPC64_TLSGD | |
| 13576 | || r_type == R_PPC64_TLSLD)) | |
| 13577 | { | |
| 13578 | /* Check for toc tls entries. */ | |
| f961d9dd | 13579 | unsigned char *toc_tls; |
| 0d4792f7 | 13580 | |
| 727fc41e AM |
13581 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13582 | &local_syms, rel, input_bfd)) | |
| 13583 | return FALSE; | |
| 0d4792f7 | 13584 | |
| 727fc41e AM |
13585 | if (toc_tls) |
| 13586 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13587 | } |
| 13588 | ||
| 13589 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13590 | relocs are used with non-tls syms. */ | |
| cf35638d | 13591 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13592 | && r_type != R_PPC64_NONE |
| 13593 | && (h == NULL | |
| 039b3fef AM |
13594 | || h->elf.root.type == bfd_link_hash_defined |
| 13595 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13596 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13597 | != (sym_type == STT_TLS | |
| 13598 | || (sym_type == STT_SECTION | |
| 13599 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13600 | { |
| 727fc41e AM |
13601 | if (tls_mask != 0 |
| 13602 | && (r_type == R_PPC64_TLS | |
| 13603 | || r_type == R_PPC64_TLSGD | |
| 13604 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13605 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13606 | ; | |
| 13607 | else | |
| 25f53a85 | 13608 | info->callbacks->einfo |
| 1d483afe | 13609 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13610 | /* xgettext:c-format */ |
| 174d0a74 | 13611 | ? _("%H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13612 | /* xgettext:c-format */ |
| 174d0a74 | 13613 | : _("%H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13614 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13615 | ppc64_elf_howto_table[r_type]->name, |
| 13616 | sym_name); | |
| 411e1bfb AM |
13617 | } |
| 13618 | ||
| 13619 | /* Ensure reloc mapping code below stays sane. */ | |
| 13620 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13621 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13622 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13623 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13624 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13625 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13626 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13627 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13628 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13629 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13630 | abort (); | |
| 0d4792f7 | 13631 | |
| 411e1bfb AM |
13632 | switch (r_type) |
| 13633 | { | |
| 13634 | default: | |
| 411e1bfb AM |
13635 | break; |
| 13636 | ||
| ba761f19 | 13637 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13638 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13639 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13640 | abort (); | |
| 13641 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13642 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13643 | r_type = R_PPC64_TOC16_LO; |
| 13644 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13645 | break; | |
| 13646 | ||
| 411e1bfb AM |
13647 | case R_PPC64_TOC16: |
| 13648 | case R_PPC64_TOC16_LO: | |
| 13649 | case R_PPC64_TOC16_DS: | |
| 13650 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13651 | { |
| 13652 | /* Check for toc tls entries. */ | |
| f961d9dd | 13653 | unsigned char *toc_tls; |
| 951fd09b | 13654 | int retval; |
| 411e1bfb | 13655 | |
| 3a71aa26 AM |
13656 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13657 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13658 | if (retval == 0) |
| 411e1bfb AM |
13659 | return FALSE; |
| 13660 | ||
| 13661 | if (toc_tls) | |
| 13662 | { | |
| 951fd09b | 13663 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13664 | if (r_type == R_PPC64_TOC16_DS |
| 13665 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13666 | { |
| 13667 | if (tls_mask != 0 | |
| 13668 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13669 | goto toctprel; | |
| 13670 | } | |
| 411e1bfb | 13671 | else |
| 951fd09b AM |
13672 | { |
| 13673 | /* If we found a GD reloc pair, then we might be | |
| 13674 | doing a GD->IE transition. */ | |
| 13675 | if (retval == 2) | |
| 13676 | { | |
| 13677 | tls_gd = TLS_TPRELGD; | |
| 13678 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13679 | goto tls_ldgd_opt; |
| 951fd09b AM |
13680 | } |
| 13681 | else if (retval == 3) | |
| 13682 | { | |
| 13683 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13684 | goto tls_ldgd_opt; |
| 951fd09b AM |
13685 | } |
| 13686 | } | |
| 411e1bfb AM |
13687 | } |
| 13688 | } | |
| 13689 | break; | |
| 13690 | ||
| 9d6ded02 AM |
13691 | case R_PPC64_GOT_TPREL16_HI: |
| 13692 | case R_PPC64_GOT_TPREL16_HA: | |
| 13693 | if (tls_mask != 0 | |
| 13694 | && (tls_mask & TLS_TPREL) == 0) | |
| 13695 | { | |
| 13696 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13697 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13698 | r_type = R_PPC64_NONE; |
| 13699 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13700 | } | |
| 13701 | break; | |
| 13702 | ||
| 411e1bfb AM |
13703 | case R_PPC64_GOT_TPREL16_DS: |
| 13704 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13705 | if (tls_mask != 0 |
| 13706 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13707 | { |
| 81407a69 | 13708 | toctprel: |
| 95f0d0d2 | 13709 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13710 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13711 | insn &= 31 << 21; |
| 13712 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13713 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13714 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13715 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13716 | if (toc_symndx != 0) |
| 13717 | { | |
| 13718 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13719 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13720 | /* We changed the symbol. Start over in order to |
| 13721 | get h, sym, sec etc. right. */ | |
| c316a17c | 13722 | goto again; |
| 0d4792f7 AM |
13723 | } |
| 13724 | else | |
| 13725 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13726 | } |
| 13727 | break; | |
| 13728 | ||
| 13729 | case R_PPC64_TLS: | |
| 951fd09b AM |
13730 | if (tls_mask != 0 |
| 13731 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13732 | { |
| 95f0d0d2 | 13733 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13734 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13735 | if (insn == 0) | |
| 411e1bfb | 13736 | abort (); |
| 95f0d0d2 | 13737 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13738 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13739 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13740 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13741 | r_type = R_PPC64_TPREL16_LO; |
| 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 | ||
| 411e1bfb AM |
13755 | case R_PPC64_GOT_TLSGD16_HI: |
| 13756 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13757 | tls_gd = TLS_TPRELGD; |
| 13758 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13759 | goto tls_gdld_hi; | |
| 13760 | break; | |
| 13761 | ||
| 411e1bfb AM |
13762 | case R_PPC64_GOT_TLSLD16_HI: |
| 13763 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13764 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13765 | { |
| 951fd09b AM |
13766 | tls_gdld_hi: |
| 13767 | if ((tls_mask & tls_gd) != 0) | |
| 13768 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13769 | + R_PPC64_GOT_TPREL16_DS); | |
| 13770 | else | |
| 411e1bfb | 13771 | { |
| 4fe5ca5b | 13772 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13773 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13774 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13775 | } |
| 951fd09b | 13776 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13777 | } |
| 13778 | break; | |
| 13779 | ||
| 951fd09b AM |
13780 | case R_PPC64_GOT_TLSGD16: |
| 13781 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13782 | tls_gd = TLS_TPRELGD; | |
| 13783 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13784 | goto tls_ldgd_opt; |
| 951fd09b | 13785 | break; |
| 411e1bfb | 13786 | |
| 951fd09b AM |
13787 | case R_PPC64_GOT_TLSLD16: |
| 13788 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13789 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13790 | { | |
| b9f04fe0 | 13791 | unsigned int insn1, insn2; |
| 102890f0 AM |
13792 | bfd_vma offset; |
| 13793 | ||
| 13794 | tls_ldgd_opt: | |
| 727fc41e AM |
13795 | offset = (bfd_vma) -1; |
| 13796 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13797 | __tls_get_addr calls, we must trust that the call | |
| 13798 | stays with its arg setup insns, ie. that the next | |
| 13799 | reloc is the __tls_get_addr call associated with | |
| 13800 | the current reloc. Edit both insns. */ | |
| 13801 | if (input_section->has_tls_get_addr_call | |
| 13802 | && rel + 1 < relend | |
| 13803 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13804 | htab->tls_get_addr, | |
| 13805 | htab->tls_get_addr_fd)) | |
| 13806 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13807 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13808 | need to keep the destination reg. It may be | |
| 13809 | something other than the usual r3, and moved to r3 | |
| 13810 | before the call by intervening code. */ | |
| 95f0d0d2 | 13811 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13812 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13813 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13814 | { |
| 102890f0 | 13815 | /* IE */ |
| b86ac8e3 | 13816 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13817 | insn1 |= 58 << 26; /* ld */ |
| 13818 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13819 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13820 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13821 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13822 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13823 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13824 | else |
| 102890f0 AM |
13825 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13826 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13827 | } | |
| 13828 | else | |
| 13829 | { | |
| 13830 | /* LE */ | |
| b86ac8e3 AM |
13831 | insn1 &= 0x1f << 21; |
| 13832 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13833 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13834 | if (tls_gd == 0) | |
| 951fd09b | 13835 | { |
| 102890f0 | 13836 | /* Was an LD reloc. */ |
| 1d483afe AM |
13837 | if (toc_symndx) |
| 13838 | sec = local_sections[toc_symndx]; | |
| 13839 | for (r_symndx = 0; | |
| 13840 | r_symndx < symtab_hdr->sh_info; | |
| 13841 | r_symndx++) | |
| 13842 | if (local_sections[r_symndx] == sec) | |
| 13843 | break; | |
| 13844 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13845 | r_symndx = STN_UNDEF; |
| 102890f0 | 13846 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13847 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13848 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13849 | + sec->output_offset | |
| 13850 | + sec->output_section->vma); | |
| 951fd09b | 13851 | } |
| 102890f0 | 13852 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13853 | { |
| 13854 | r_symndx = toc_symndx; | |
| 13855 | rel->r_addend = toc_addend; | |
| 13856 | } | |
| 102890f0 AM |
13857 | r_type = R_PPC64_TPREL16_HA; |
| 13858 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13859 | if (offset != (bfd_vma) -1) |
| 13860 | { | |
| 13861 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13862 | R_PPC64_TPREL16_LO); | |
| 13863 | rel[1].r_offset = offset + d_offset; | |
| 13864 | rel[1].r_addend = rel->r_addend; | |
| 13865 | } | |
| 102890f0 | 13866 | } |
| 95f0d0d2 | 13867 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13868 | contents + rel->r_offset - d_offset); |
| 727fc41e | 13869 | if (offset != (bfd_vma) -1) |
| b9f04fe0 | 13870 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13871 | if ((tls_mask & tls_gd) == 0 |
| 13872 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13873 | { | |
| 13874 | /* We changed the symbol. Start over in order | |
| 13875 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13876 | goto again; |
| 727fc41e AM |
13877 | } |
| 13878 | } | |
| 13879 | break; | |
| 13880 | ||
| 13881 | case R_PPC64_TLSGD: | |
| 13882 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13883 | { | |
| b9f04fe0 | 13884 | unsigned int insn2; |
| 727fc41e AM |
13885 | bfd_vma offset = rel->r_offset; |
| 13886 | ||
| 13887 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13888 | { | |
| 13889 | /* IE */ | |
| 13890 | r_type = R_PPC64_NONE; | |
| 13891 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13892 | } | |
| 13893 | else | |
| 13894 | { | |
| 13895 | /* LE */ | |
| 13896 | if (toc_symndx != 0) | |
| 13897 | { | |
| 13898 | r_symndx = toc_symndx; | |
| 13899 | rel->r_addend = toc_addend; | |
| 13900 | } | |
| 13901 | r_type = R_PPC64_TPREL16_LO; | |
| 13902 | rel->r_offset = offset + d_offset; | |
| 13903 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13904 | } | |
| 13905 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13906 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13907 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13908 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13909 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13910 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13911 | goto again; |
| 411e1bfb | 13912 | } |
| 411e1bfb AM |
13913 | break; |
| 13914 | ||
| 727fc41e AM |
13915 | case R_PPC64_TLSLD: |
| 13916 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13917 | { | |
| b9f04fe0 | 13918 | unsigned int insn2; |
| 727fc41e AM |
13919 | bfd_vma offset = rel->r_offset; |
| 13920 | ||
| 13921 | if (toc_symndx) | |
| 13922 | sec = local_sections[toc_symndx]; | |
| 13923 | for (r_symndx = 0; | |
| 13924 | r_symndx < symtab_hdr->sh_info; | |
| 13925 | r_symndx++) | |
| 13926 | if (local_sections[r_symndx] == sec) | |
| 13927 | break; | |
| 13928 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13929 | r_symndx = STN_UNDEF; |
| 727fc41e | 13930 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13931 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13932 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13933 | + sec->output_offset | |
| 13934 | + sec->output_section->vma); | |
| 13935 | ||
| 13936 | r_type = R_PPC64_TPREL16_LO; | |
| 13937 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13938 | rel->r_offset = offset + d_offset; | |
| 13939 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13940 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13941 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13942 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13943 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13944 | goto again; |
| 727fc41e AM |
13945 | } |
| 13946 | break; | |
| 13947 | ||
| 411e1bfb | 13948 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13949 | if (rel + 1 < relend |
| 13950 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13951 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13952 | { |
| 951fd09b AM |
13953 | if ((tls_mask & TLS_GD) == 0) |
| 13954 | { | |
| 13955 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13956 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13957 | r_type = R_PPC64_TPREL64; | |
| 13958 | else | |
| 13959 | { | |
| 4ce794b7 | 13960 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13961 | r_type = R_PPC64_NONE; |
| 13962 | } | |
| 13963 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13964 | } | |
| 13965 | } | |
| 13966 | else | |
| 13967 | { | |
| 13968 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13969 | { |
| 4ce794b7 | 13970 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13971 | r_type = R_PPC64_NONE; |
| 951fd09b | 13972 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13973 | } |
| 411e1bfb AM |
13974 | } |
| 13975 | break; | |
| 13976 | ||
| 13977 | case R_PPC64_TPREL64: | |
| 951fd09b | 13978 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13979 | { |
| 13980 | r_type = R_PPC64_NONE; | |
| 13981 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13982 | } | |
| 13983 | break; | |
| 52a82034 | 13984 | |
| 006589cf AM |
13985 | case R_PPC64_ENTRY: |
| 13986 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 13987 | if (!bfd_link_pic (info) | |
| 13988 | && !info->traditional_format | |
| 13989 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13990 | { | |
| 13991 | unsigned int insn1, insn2; | |
| 13992 | ||
| 13993 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13994 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 13995 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 13996 | && insn2 == ADD_R2_R2_R12) | |
| 13997 | { | |
| 95f0d0d2 | 13998 | bfd_put_32 (input_bfd, |
| 006589cf AM |
13999 | LIS_R2 + PPC_HA (relocation), |
| 14000 | contents + rel->r_offset); | |
| 95f0d0d2 | 14001 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14002 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14003 | contents + rel->r_offset + 4); | |
| 14004 | } | |
| 14005 | } | |
| 14006 | else | |
| 14007 | { | |
| 14008 | relocation -= (rel->r_offset | |
| 14009 | + input_section->output_offset | |
| 14010 | + input_section->output_section->vma); | |
| 14011 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14012 | { | |
| 14013 | unsigned int insn1, insn2; | |
| 14014 | ||
| 14015 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14016 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14017 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14018 | && insn2 == ADD_R2_R2_R12) | |
| 14019 | { | |
| 95f0d0d2 | 14020 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14021 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14022 | contents + rel->r_offset); | |
| 95f0d0d2 | 14023 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14024 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14025 | contents + rel->r_offset + 4); | |
| 14026 | } | |
| 14027 | } | |
| 14028 | } | |
| 14029 | break; | |
| 14030 | ||
| 52a82034 AM |
14031 | case R_PPC64_REL16_HA: |
| 14032 | /* If we are generating a non-PIC executable, edit | |
| 14033 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14034 | . addi 2,2,.TOC.-0b@l | |
| 14035 | used by ELFv2 global entry points to set up r2, to | |
| 14036 | . lis 2,.TOC.@ha | |
| 14037 | . addi 2,2,.TOC.@l | |
| 14038 | if .TOC. is in range. */ | |
| 0e1862bb | 14039 | if (!bfd_link_pic (info) |
| 810d4e75 | 14040 | && !info->traditional_format |
| 006589cf | 14041 | && !htab->opd_abi |
| 4f038ee5 | 14042 | && rel->r_addend == d_offset |
| 52a82034 AM |
14043 | && h != NULL && &h->elf == htab->elf.hgot |
| 14044 | && rel + 1 < relend | |
| 14045 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14046 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14047 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14048 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14049 | { | |
| 14050 | unsigned int insn1, insn2; | |
| 14051 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14052 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14053 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14054 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14055 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14056 | { |
| 14057 | r_type = R_PPC64_ADDR16_HA; | |
| 14058 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14059 | rel->r_addend -= d_offset; | |
| 14060 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14061 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14062 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14063 | } |
| 14064 | } | |
| 14065 | break; | |
| 411e1bfb AM |
14066 | } |
| 14067 | ||
| 14068 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14069 | insn = 0; |
| b25116a9 AM |
14070 | max_br_offset = 1 << 25; |
| 14071 | addend = rel->r_addend; | |
| bc30df16 | 14072 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14073 | switch (r_type) |
| 5bd4f169 AM |
14074 | { |
| 14075 | default: | |
| 65f38f15 | 14076 | break; |
| 5bd4f169 | 14077 | |
| 3b421ab3 AM |
14078 | case R_PPC64_TOCSAVE: |
| 14079 | if (relocation + addend == (rel->r_offset | |
| 14080 | + input_section->output_offset | |
| 14081 | + input_section->output_section->vma) | |
| 14082 | && tocsave_find (htab, NO_INSERT, | |
| 14083 | &local_syms, rel, input_bfd)) | |
| 14084 | { | |
| 14085 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14086 | if (insn == NOP | |
| 14087 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14088 | bfd_put_32 (input_bfd, |
| 14089 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14090 | contents + rel->r_offset); |
| 14091 | } | |
| 14092 | break; | |
| 14093 | ||
| 65f38f15 AM |
14094 | /* Branch taken prediction relocations. */ |
| 14095 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14096 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14097 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14098 | /* Fall through. */ |
| 65f38f15 | 14099 | |
| 86c76c7b | 14100 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14101 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14102 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14103 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14104 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14105 | /* Fall through. */ |
| 86c76c7b | 14106 | |
| b25116a9 AM |
14107 | case R_PPC64_REL14: |
| 14108 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14109 | /* Fall through. */ |
| 5bd4f169 | 14110 | |
| 65f38f15 | 14111 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14112 | /* Calls to functions with a different TOC, such as calls to |
| 14113 | shared objects, need to alter the TOC pointer. This is | |
| 14114 | done using a linkage stub. A REL24 branching to these | |
| 14115 | linkage stubs needs to be followed by a nop, as the nop | |
| 14116 | will be replaced with an instruction to restore the TOC | |
| 14117 | base pointer. */ | |
| 8387904d | 14118 | fdh = h; |
| b31867b6 AM |
14119 | if (h != NULL |
| 14120 | && h->oh != NULL | |
| 14121 | && h->oh->is_func_descriptor) | |
| 14122 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14123 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14124 | htab); | |
| 6abec6bc | 14125 | if (stub_entry != NULL |
| ad8e1ba5 | 14126 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14127 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14128 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14129 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14130 | { |
| b25116a9 | 14131 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14132 | |
| 6e1816be AM |
14133 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14134 | && !htab->opd_abi | |
| 14135 | && htab->params->plt_localentry0 != 0 | |
| 14136 | && is_elfv2_localentry0 (&h->elf)) | |
| 14137 | { | |
| 14138 | /* The function doesn't use or change r2. */ | |
| 14139 | can_plt_call = TRUE; | |
| 14140 | } | |
| 14141 | ||
| f378ab09 | 14142 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14143 | branch and link followed by a nop. The nop is |
| 14144 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14145 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14146 | { |
| ba8ca3e7 AM |
14147 | unsigned long br; |
| 14148 | ||
| 14149 | br = bfd_get_32 (input_bfd, | |
| 14150 | contents + rel->r_offset); | |
| 14151 | if ((br & 1) != 0) | |
| 41bd81ab | 14152 | { |
| ba8ca3e7 AM |
14153 | unsigned long nop; |
| 14154 | ||
| 14155 | nop = bfd_get_32 (input_bfd, | |
| 14156 | contents + rel->r_offset + 4); | |
| 14157 | if (nop == NOP | |
| 14158 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14159 | { |
| ba8ca3e7 AM |
14160 | if (h != NULL |
| 14161 | && (h == htab->tls_get_addr_fd | |
| 14162 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14163 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14164 | { |
| 14165 | /* Special stub used, leave nop alone. */ | |
| 14166 | } | |
| 14167 | else | |
| a078d95a AM |
14168 | bfd_put_32 (input_bfd, |
| 14169 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14170 | contents + rel->r_offset + 4); |
| 14171 | can_plt_call = TRUE; | |
| a7f2871e | 14172 | } |
| 41bd81ab | 14173 | } |
| 5bd4f169 | 14174 | } |
| 721956f4 | 14175 | |
| ba8ca3e7 | 14176 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14177 | { |
| ba8ca3e7 AM |
14178 | const char *name = h->elf.root.root.string; |
| 14179 | ||
| 14180 | if (*name == '.') | |
| 14181 | ++name; | |
| 14182 | ||
| 14183 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14184 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14185 | { |
| ba8ca3e7 AM |
14186 | /* Allow crt1 branch to go via a toc adjusting |
| 14187 | stub. Other calls that never return could do | |
| 14188 | the same, if we could detect such. */ | |
| b25116a9 | 14189 | can_plt_call = TRUE; |
| 6ab189d5 | 14190 | } |
| ba8ca3e7 AM |
14191 | } |
| 14192 | ||
| 14193 | if (!can_plt_call) | |
| 14194 | { | |
| 14195 | /* g++ as of 20130507 emits self-calls without a | |
| 14196 | following nop. This is arguably wrong since we | |
| 14197 | have conflicting information. On the one hand a | |
| 14198 | global symbol and on the other a local call | |
| 14199 | sequence, but don't error for this special case. | |
| 14200 | It isn't possible to cheaply verify we have | |
| 14201 | exactly such a call. Allow all calls to the same | |
| 14202 | section. */ | |
| 14203 | asection *code_sec = sec; | |
| 14204 | ||
| 14205 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14206 | { |
| ba8ca3e7 AM |
14207 | bfd_vma off = (relocation + addend |
| 14208 | - sec->output_section->vma | |
| 14209 | - sec->output_offset); | |
| bc30df16 | 14210 | |
| ba8ca3e7 | 14211 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14212 | } |
| ba8ca3e7 AM |
14213 | if (code_sec == input_section) |
| 14214 | can_plt_call = TRUE; | |
| 14215 | } | |
| 14216 | ||
| 14217 | if (!can_plt_call) | |
| 14218 | { | |
| 4805fc55 AM |
14219 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14220 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14221 | info->callbacks->einfo | |
| 695344c0 | 14222 | /* xgettext:c-format */ |
| 174d0a74 | 14223 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14224 | "recompile with -fPIC\n"), |
| 14225 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14226 | else | |
| 14227 | info->callbacks->einfo | |
| 695344c0 | 14228 | /* xgettext:c-format */ |
| 174d0a74 | 14229 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14230 | "(-mcmodel=small toc adjust stub)\n"), |
| 14231 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14232 | |
| 14233 | bfd_set_error (bfd_error_bad_value); | |
| 14234 | ret = FALSE; | |
| 721956f4 AM |
14235 | } |
| 14236 | ||
| b25116a9 | 14237 | if (can_plt_call |
| 794e51c0 AM |
14238 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14239 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14240 | unresolved_reloc = FALSE; |
| 14241 | } | |
| 14242 | ||
| 6abec6bc AM |
14243 | if ((stub_entry == NULL |
| 14244 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14245 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14246 | && get_opd_info (sec) != NULL) |
| 14247 | { | |
| 14248 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14249 | bfd_vma off = (relocation + addend |
| 14250 | - sec->output_section->vma | |
| 14251 | - sec->output_offset); | |
| aef36ac1 | 14252 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14253 | if (dest != (bfd_vma) -1) |
| 14254 | { | |
| 14255 | relocation = dest; | |
| 14256 | addend = 0; | |
| bc30df16 | 14257 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14258 | } |
| 14259 | } | |
| 14260 | ||
| b25116a9 AM |
14261 | /* If the branch is out of reach we ought to have a long |
| 14262 | branch stub. */ | |
| 14263 | from = (rel->r_offset | |
| 14264 | + input_section->output_offset | |
| 14265 | + input_section->output_section->vma); | |
| 14266 | ||
| 6911b7dc AM |
14267 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14268 | ? fdh->elf.other | |
| 14269 | : sym->st_other); | |
| 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) | |
| 14274 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14275 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14276 | || (relocation + addend - from + max_br_offset | |
| 14277 | < 2 * max_br_offset))) | |
| 14278 | /* Don't use the stub if this branch is in range. */ | |
| 14279 | stub_entry = NULL; | |
| b25116a9 AM |
14280 | |
| 14281 | if (stub_entry != NULL) | |
| 14282 | { | |
| 14283 | /* Munge up the value and addend so that we call the stub | |
| 14284 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14285 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14286 | ||
| 14287 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14288 | relocation += (stub_sec->output_offset | |
| 14289 | + stub_sec->output_section->vma | |
| 14290 | + stub_sec->size - htab->sfpr->size | |
| 14291 | - htab->sfpr->output_offset | |
| 14292 | - htab->sfpr->output_section->vma); | |
| 14293 | else | |
| 14294 | relocation = (stub_entry->stub_offset | |
| 14295 | + stub_sec->output_offset | |
| 14296 | + stub_sec->output_section->vma); | |
| b25116a9 | 14297 | addend = 0; |
| bc30df16 | 14298 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14299 | |
| 954b63d4 | 14300 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14301 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14302 | && (ALWAYS_EMIT_R2SAVE | |
| 14303 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14304 | && rel + 1 < relend |
| 14305 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14306 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14307 | relocation += 4; | |
| b25116a9 AM |
14308 | } |
| 14309 | ||
| 14310 | if (insn != 0) | |
| 14311 | { | |
| 794e51c0 | 14312 | if (is_isa_v2) |
| 721956f4 | 14313 | { |
| b25116a9 AM |
14314 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14315 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14316 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14317 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14318 | insn |= 0x02 << 21; | |
| 14319 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14320 | insn |= 0x08 << 21; | |
| 14321 | else | |
| 14322 | break; | |
| 14323 | } | |
| 14324 | else | |
| 14325 | { | |
| 14326 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14327 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14328 | insn ^= 0x01 << 21; |
| 721956f4 | 14329 | } |
| b25116a9 | 14330 | |
| 95f0d0d2 | 14331 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14332 | } |
| e86ce104 | 14333 | |
| 06da1e8e AM |
14334 | /* NOP out calls to undefined weak functions. |
| 14335 | We can thus call a weak function without first | |
| 14336 | checking whether the function is defined. */ | |
| b25116a9 | 14337 | else if (h != NULL |
| 039b3fef | 14338 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14339 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14340 | && r_type == R_PPC64_REL24 |
| 14341 | && relocation == 0 | |
| 4cc603a5 | 14342 | && addend == 0) |
| e86ce104 | 14343 | { |
| 95f0d0d2 | 14344 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14345 | goto copy_reloc; |
| e86ce104 | 14346 | } |
| 65f38f15 AM |
14347 | break; |
| 14348 | } | |
| 5bd4f169 | 14349 | |
| 65f38f15 | 14350 | /* Set `addend'. */ |
| 411e1bfb | 14351 | tls_type = 0; |
| 65f38f15 AM |
14352 | switch (r_type) |
| 14353 | { | |
| 14354 | default: | |
| 25f53a85 | 14355 | info->callbacks->einfo |
| 695344c0 | 14356 | /* xgettext:c-format */ |
| 871b3ab2 | 14357 | (_("%P: %pB: unknown relocation type %d for `%T'\n"), |
| d003868e | 14358 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14359 | |
| 65f38f15 | 14360 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14361 | ret = FALSE; |
| c316a17c | 14362 | goto copy_reloc; |
| 5bd4f169 | 14363 | |
| 65f38f15 | 14364 | case R_PPC64_NONE: |
| 411e1bfb | 14365 | case R_PPC64_TLS: |
| 727fc41e AM |
14366 | case R_PPC64_TLSGD: |
| 14367 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14368 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14369 | case R_PPC64_GNU_VTINHERIT: |
| 14370 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14371 | case R_PPC64_ENTRY: |
| c316a17c | 14372 | goto copy_reloc; |
| 5bd4f169 AM |
14373 | |
| 14374 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14375 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14376 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14377 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14378 | case R_PPC64_GOT_TLSGD16: |
| 14379 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14380 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14381 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14382 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14383 | goto dogot; |
| 14384 | ||
| 14385 | case R_PPC64_GOT_TLSLD16: | |
| 14386 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14387 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14388 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14389 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14390 | goto dogot; |
| 14391 | ||
| 14392 | case R_PPC64_GOT_TPREL16_DS: | |
| 14393 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14394 | case R_PPC64_GOT_TPREL16_HI: | |
| 14395 | case R_PPC64_GOT_TPREL16_HA: | |
| 14396 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14397 | goto dogot; | |
| 14398 | ||
| 14399 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14400 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14401 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14402 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14403 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14404 | goto dogot; | |
| 14405 | ||
| 65f38f15 AM |
14406 | case R_PPC64_GOT16: |
| 14407 | case R_PPC64_GOT16_LO: | |
| 14408 | case R_PPC64_GOT16_HI: | |
| 14409 | case R_PPC64_GOT16_HA: | |
| 14410 | case R_PPC64_GOT16_DS: | |
| 14411 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14412 | dogot: |
| 5bd4f169 AM |
14413 | { |
| 14414 | /* Relocation is to the entry for this symbol in the global | |
| 14415 | offset table. */ | |
| e717da7e | 14416 | asection *got; |
| d881513a | 14417 | bfd_vma *offp; |
| 5bd4f169 | 14418 | bfd_vma off; |
| d881513a | 14419 | unsigned long indx = 0; |
| 927be08e | 14420 | struct got_entry *ent; |
| 65f38f15 | 14421 | |
| d881513a AM |
14422 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14423 | && (h == NULL | |
| f5385ebf | 14424 | || !h->elf.def_dynamic)) |
| 927be08e | 14425 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14426 | else |
| 5bd4f169 | 14427 | { |
| d881513a AM |
14428 | if (h != NULL) |
| 14429 | { | |
| f0158f44 AM |
14430 | if (!htab->elf.dynamic_sections_created |
| 14431 | || h->elf.dynindx == -1 | |
| 14432 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 14433 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
14434 | /* This is actually a static link, or it is a |
| 14435 | -Bsymbolic link and the symbol is defined | |
| 14436 | locally, or the symbol was forced to be local | |
| 14437 | because of a version file. */ | |
| 14438 | ; | |
| 14439 | else | |
| 14440 | { | |
| 039b3fef | 14441 | indx = h->elf.dynindx; |
| d881513a AM |
14442 | unresolved_reloc = FALSE; |
| 14443 | } | |
| 039b3fef | 14444 | ent = h->elf.got.glist; |
| d881513a | 14445 | } |
| 411e1bfb | 14446 | else |
| 5bd4f169 | 14447 | { |
| d881513a AM |
14448 | if (local_got_ents == NULL) |
| 14449 | abort (); | |
| 14450 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14451 | } |
| d881513a AM |
14452 | |
| 14453 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14454 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14455 | && ent->owner == input_bfd |
| d881513a AM |
14456 | && ent->tls_type == tls_type) |
| 14457 | break; | |
| 5bd4f169 | 14458 | } |
| 411e1bfb | 14459 | |
| 927be08e AM |
14460 | if (ent == NULL) |
| 14461 | abort (); | |
| 14462 | if (ent->is_indirect) | |
| 14463 | ent = ent->got.ent; | |
| 14464 | offp = &ent->got.offset; | |
| 14465 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14466 | if (got == NULL) |
| 14467 | abort (); | |
| 14468 | ||
| 411e1bfb AM |
14469 | /* The offset must always be a multiple of 8. We use the |
| 14470 | least significant bit to record whether we have already | |
| 14471 | processed this entry. */ | |
| d881513a | 14472 | off = *offp; |
| 411e1bfb AM |
14473 | if ((off & 1) != 0) |
| 14474 | off &= ~1; | |
| 5bd4f169 AM |
14475 | else |
| 14476 | { | |
| 411e1bfb AM |
14477 | /* Generate relocs for the dynamic linker, except in |
| 14478 | the case of TLSLD where we'll use one entry per | |
| 14479 | module. */ | |
| 25f23106 AM |
14480 | asection *relgot; |
| 14481 | bfd_boolean ifunc; | |
| e717da7e | 14482 | |
| d881513a | 14483 | *offp = off | 1; |
| 25f23106 AM |
14484 | relgot = NULL; |
| 14485 | ifunc = (h != NULL | |
| 14486 | ? h->elf.type == STT_GNU_IFUNC | |
| 14487 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14488 | if (ifunc) |
| 82e66161 AM |
14489 | { |
| 14490 | relgot = htab->elf.irelplt; | |
| 14491 | if (indx == 0) | |
| 14492 | htab->local_ifunc_resolver = 1; | |
| 14493 | else if (is_static_defined (&h->elf)) | |
| 14494 | htab->maybe_local_ifunc_resolver = 1; | |
| 14495 | } | |
| f0158f44 AM |
14496 | else if (indx != 0 |
| 14497 | || (bfd_link_pic (info) | |
| 14498 | && (h == NULL | |
| 21d68fcd | 14499 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 | 14500 | || (tls_type == (TLS_TLS | TLS_LD) |
| f15d0b54 AM |
14501 | && !h->elf.def_dynamic)) |
| 14502 | && !(tls_type == (TLS_TLS | TLS_TPREL) | |
| 14503 | && bfd_link_executable (info) | |
| 14504 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))) | |
| 19e08130 | 14505 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14506 | if (relgot != NULL) |
| 5bd4f169 | 14507 | { |
| e717da7e AM |
14508 | outrel.r_offset = (got->output_section->vma |
| 14509 | + got->output_offset | |
| 411e1bfb | 14510 | + off); |
| 4cc603a5 | 14511 | outrel.r_addend = addend; |
| d881513a | 14512 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14513 | { |
| 411e1bfb | 14514 | outrel.r_addend = 0; |
| e515b051 | 14515 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14516 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14517 | { | |
| e717da7e AM |
14518 | loc = relgot->contents; |
| 14519 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14520 | * sizeof (Elf64_External_Rela)); |
| 14521 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14522 | &outrel, loc); | |
| e515b051 | 14523 | outrel.r_offset += 8; |
| 4cc603a5 | 14524 | outrel.r_addend = addend; |
| d881513a AM |
14525 | outrel.r_info |
| 14526 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14527 | } |
| 411e1bfb | 14528 | } |
| 951fd09b | 14529 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14530 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14531 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14532 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14533 | else if (indx != 0) |
| 14534 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14535 | else | |
| 81407a69 | 14536 | { |
| 25f23106 AM |
14537 | if (ifunc) |
| 14538 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14539 | else | |
| 14540 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14541 | |
| 14542 | /* Write the .got section contents for the sake | |
| 14543 | of prelink. */ | |
| e717da7e | 14544 | loc = got->contents + off; |
| 23fbd6fa JJ |
14545 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14546 | loc); | |
| 81407a69 | 14547 | } |
| 81407a69 AM |
14548 | |
| 14549 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14550 | { |
| 14551 | outrel.r_addend += relocation; | |
| 14552 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14553 | { |
| 14554 | if (htab->elf.tls_sec == NULL) | |
| 14555 | outrel.r_addend = 0; | |
| 14556 | else | |
| 14557 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14558 | } | |
| e515b051 | 14559 | } |
| e717da7e AM |
14560 | loc = relgot->contents; |
| 14561 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14562 | * sizeof (Elf64_External_Rela)); |
| 14563 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14564 | } | |
| 14565 | ||
| ad8e1ba5 | 14566 | /* Init the .got section contents here if we're not |
| 81407a69 | 14567 | emitting a reloc. */ |
| d881513a | 14568 | else |
| 411e1bfb | 14569 | { |
| 4cc603a5 | 14570 | relocation += addend; |
| f0158f44 | 14571 | if (tls_type != 0) |
| 411e1bfb | 14572 | { |
| 989f9879 AM |
14573 | if (htab->elf.tls_sec == NULL) |
| 14574 | relocation = 0; | |
| 14575 | else | |
| 14576 | { | |
| f0158f44 AM |
14577 | if (tls_type & TLS_LD) |
| 14578 | relocation = 0; | |
| 14579 | else | |
| 14580 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 14581 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
14582 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14583 | } | |
| 5bd4f169 | 14584 | |
| f0158f44 | 14585 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14586 | { |
| 14587 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14588 | got->contents + off + 8); |
| 676ee2b5 | 14589 | relocation = 1; |
| 7b609f53 | 14590 | } |
| 411e1bfb AM |
14591 | } |
| 14592 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14593 | got->contents + off); |
| 5bd4f169 AM |
14594 | } |
| 14595 | } | |
| 14596 | ||
| 65f38f15 AM |
14597 | if (off >= (bfd_vma) -2) |
| 14598 | abort (); | |
| 14599 | ||
| bf102f86 | 14600 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14601 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14602 | } |
| 65f38f15 AM |
14603 | break; |
| 14604 | ||
| 14605 | case R_PPC64_PLT16_HA: | |
| 14606 | case R_PPC64_PLT16_HI: | |
| 14607 | case R_PPC64_PLT16_LO: | |
| 14608 | case R_PPC64_PLT32: | |
| 14609 | case R_PPC64_PLT64: | |
| 14610 | /* Relocation is to the entry for this symbol in the | |
| 14611 | procedure linkage table. */ | |
| cbf95972 AM |
14612 | { |
| 14613 | struct plt_entry **plt_list = NULL; | |
| 14614 | if (h != NULL) | |
| 14615 | plt_list = &h->elf.plt.plist; | |
| 14616 | else if (local_got_ents != NULL) | |
| 14617 | { | |
| 14618 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14619 | (local_got_ents + symtab_hdr->sh_info); | |
| 14620 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14621 | (local_plt + symtab_hdr->sh_info); | |
| 14622 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14623 | plt_list = local_plt + r_symndx; | |
| 14624 | } | |
| 14625 | if (plt_list) | |
| 14626 | { | |
| 14627 | struct plt_entry *ent; | |
| 65f38f15 | 14628 | |
| cbf95972 AM |
14629 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14630 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14631 | && ent->addend == orig_rel.r_addend) | |
| 14632 | { | |
| 14633 | asection *plt; | |
| 14634 | ||
| 14635 | plt = htab->elf.splt; | |
| 14636 | if (!htab->elf.dynamic_sections_created | |
| 14637 | || h == NULL | |
| 14638 | || h->elf.dynindx == -1) | |
| 14639 | plt = htab->elf.iplt; | |
| 14640 | relocation = (plt->output_section->vma | |
| 14641 | + plt->output_offset | |
| 14642 | + ent->plt.offset); | |
| 14643 | addend = 0; | |
| 14644 | unresolved_reloc = FALSE; | |
| 14645 | break; | |
| 14646 | } | |
| 14647 | } | |
| 14648 | } | |
| 65f38f15 | 14649 | break; |
| 5bd4f169 | 14650 | |
| 0b13192e AM |
14651 | case R_PPC64_TOC: |
| 14652 | /* Relocation value is TOC base. */ | |
| 14653 | relocation = TOCstart; | |
| cf35638d | 14654 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14655 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14656 | else if (unresolved_reloc) |
| 14657 | ; | |
| 6f20ed8a AM |
14658 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14659 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14660 | else |
| 14661 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14662 | goto dodyn; |
| 0b13192e | 14663 | |
| 5bd4f169 AM |
14664 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14665 | which is the address of the start of the TOC plus 0x8000. | |
| 14666 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14667 | in this order. */ | |
| 65f38f15 AM |
14668 | case R_PPC64_TOC16: |
| 14669 | case R_PPC64_TOC16_LO: | |
| 14670 | case R_PPC64_TOC16_HI: | |
| 14671 | case R_PPC64_TOC16_DS: | |
| 14672 | case R_PPC64_TOC16_LO_DS: | |
| 14673 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14674 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14675 | break; |
| 14676 | ||
| 14677 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14678 | case R_PPC64_SECTOFF: |
| 14679 | case R_PPC64_SECTOFF_LO: | |
| 14680 | case R_PPC64_SECTOFF_HI: | |
| 14681 | case R_PPC64_SECTOFF_DS: | |
| 14682 | case R_PPC64_SECTOFF_LO_DS: | |
| 14683 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14684 | if (sec != NULL) |
| 65f38f15 | 14685 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14686 | break; |
| 14687 | ||
| 25f23106 AM |
14688 | case R_PPC64_REL16: |
| 14689 | case R_PPC64_REL16_LO: | |
| 14690 | case R_PPC64_REL16_HI: | |
| 14691 | case R_PPC64_REL16_HA: | |
| a680de9a | 14692 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14693 | break; |
| 14694 | ||
| 721956f4 AM |
14695 | case R_PPC64_REL14: |
| 14696 | case R_PPC64_REL14_BRNTAKEN: | |
| 14697 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14698 | case R_PPC64_REL24: |
| 14699 | break; | |
| 14700 | ||
| 411e1bfb AM |
14701 | case R_PPC64_TPREL16: |
| 14702 | case R_PPC64_TPREL16_LO: | |
| 14703 | case R_PPC64_TPREL16_HI: | |
| 14704 | case R_PPC64_TPREL16_HA: | |
| 14705 | case R_PPC64_TPREL16_DS: | |
| 14706 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14707 | case R_PPC64_TPREL16_HIGH: |
| 14708 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14709 | case R_PPC64_TPREL16_HIGHER: |
| 14710 | case R_PPC64_TPREL16_HIGHERA: | |
| 14711 | case R_PPC64_TPREL16_HIGHEST: | |
| 14712 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14713 | if (h != NULL |
| 14714 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14715 | && h->elf.dynindx == -1) | |
| 14716 | { | |
| 14717 | /* Make this relocation against an undefined weak symbol | |
| 14718 | resolve to zero. This is really just a tweak, since | |
| 14719 | code using weak externs ought to check that they are | |
| 14720 | defined before using them. */ | |
| 14721 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14722 | ||
| 95f0d0d2 | 14723 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14724 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14725 | if (insn != 0) | |
| 95f0d0d2 | 14726 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14727 | break; |
| 14728 | } | |
| 989f9879 AM |
14729 | if (htab->elf.tls_sec != NULL) |
| 14730 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
14731 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14732 | libs or with non-local symbols as that will result in | |
| 14733 | DT_TEXTREL being set, but support them anyway. */ | |
| 14734 | goto dodyn; | |
| 411e1bfb AM |
14735 | |
| 14736 | case R_PPC64_DTPREL16: | |
| 14737 | case R_PPC64_DTPREL16_LO: | |
| 14738 | case R_PPC64_DTPREL16_HI: | |
| 14739 | case R_PPC64_DTPREL16_HA: | |
| 14740 | case R_PPC64_DTPREL16_DS: | |
| 14741 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14742 | case R_PPC64_DTPREL16_HIGH: |
| 14743 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14744 | case R_PPC64_DTPREL16_HIGHER: |
| 14745 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14746 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14747 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14748 | if (htab->elf.tls_sec != NULL) |
| 14749 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14750 | break; |
| 14751 | ||
| 45965137 AM |
14752 | case R_PPC64_ADDR64_LOCAL: |
| 14753 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14754 | ? h->elf.other | |
| 14755 | : sym->st_other); | |
| 14756 | break; | |
| 14757 | ||
| e515b051 AM |
14758 | case R_PPC64_DTPMOD64: |
| 14759 | relocation = 1; | |
| 14760 | addend = 0; | |
| 14761 | goto dodyn; | |
| 14762 | ||
| 411e1bfb | 14763 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14764 | if (htab->elf.tls_sec != NULL) |
| 14765 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14766 | goto dodyn; |
| 14767 | ||
| 14768 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14769 | if (htab->elf.tls_sec != NULL) |
| 14770 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14771 | /* Fall through. */ |
| 411e1bfb | 14772 | |
| 65f38f15 AM |
14773 | /* Relocations that may need to be propagated if this is a |
| 14774 | dynamic object. */ | |
| 04c9666a | 14775 | case R_PPC64_REL30: |
| 65f38f15 AM |
14776 | case R_PPC64_REL32: |
| 14777 | case R_PPC64_REL64: | |
| 14778 | case R_PPC64_ADDR14: | |
| 14779 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14780 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14781 | case R_PPC64_ADDR16: | |
| 14782 | case R_PPC64_ADDR16_DS: | |
| 14783 | case R_PPC64_ADDR16_HA: | |
| 14784 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14785 | case R_PPC64_ADDR16_HIGH: |
| 14786 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14787 | case R_PPC64_ADDR16_HIGHER: |
| 14788 | case R_PPC64_ADDR16_HIGHERA: | |
| 14789 | case R_PPC64_ADDR16_HIGHEST: | |
| 14790 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14791 | case R_PPC64_ADDR16_LO: | |
| 14792 | case R_PPC64_ADDR16_LO_DS: | |
| 14793 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14794 | case R_PPC64_ADDR32: |
| 14795 | case R_PPC64_ADDR64: | |
| 14796 | case R_PPC64_UADDR16: | |
| 14797 | case R_PPC64_UADDR32: | |
| 14798 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14799 | dodyn: |
| 5d1634d7 | 14800 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14801 | break; |
| 14802 | ||
| 41bd81ab AM |
14803 | if (NO_OPD_RELOCS && is_opd) |
| 14804 | break; | |
| 14805 | ||
| 8a9e8e72 | 14806 | if (bfd_link_pic (info) |
| b1b07054 AM |
14807 | ? ((h == NULL |
| 14808 | || h->dyn_relocs != NULL) | |
| 14809 | && ((h != NULL && pc_dynrelocs (h)) | |
| 14810 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
14811 | : (h != NULL |
| 14812 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14813 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14814 | { |
| b34976b6 | 14815 | bfd_boolean skip, relocate; |
| 65f38f15 | 14816 | asection *sreloc; |
| 1cf1f670 | 14817 | bfd_vma out_off; |
| 82e66161 | 14818 | long indx = 0; |
| 65f38f15 AM |
14819 | |
| 14820 | /* When generating a dynamic object, these relocations | |
| 14821 | are copied into the output file to be resolved at run | |
| 14822 | time. */ | |
| 14823 | ||
| b34976b6 AM |
14824 | skip = FALSE; |
| 14825 | relocate = FALSE; | |
| 65f38f15 | 14826 | |
| 1cf1f670 AM |
14827 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14828 | input_section, rel->r_offset); | |
| 14829 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14830 | skip = TRUE; |
| 1cf1f670 | 14831 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14832 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14833 | out_off += (input_section->output_section->vma |
| 14834 | + input_section->output_offset); | |
| 14835 | outrel.r_offset = out_off; | |
| 411e1bfb | 14836 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14837 | |
| 1cf1f670 AM |
14838 | /* Optimize unaligned reloc use. */ |
| 14839 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14840 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14841 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14842 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14843 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14844 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14845 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14846 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14847 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14848 | ||
| 65f38f15 | 14849 | if (skip) |
| 0bb2d96a | 14850 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14851 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14852 | && !is_opd |
| 14853 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 14854 | { |
| 82e66161 AM |
14855 | indx = h->elf.dynindx; |
| 14856 | BFD_ASSERT (indx != -1); | |
| 14857 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 14858 | } |
| 65f38f15 AM |
14859 | else |
| 14860 | { | |
| 41bd81ab AM |
14861 | /* This symbol is local, or marked to become local, |
| 14862 | or this is an opd section reloc which must point | |
| 14863 | at a local function. */ | |
| 65f38f15 | 14864 | outrel.r_addend += relocation; |
| e86ce104 | 14865 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14866 | { |
| 3fad3c7c | 14867 | if (is_opd && h != NULL) |
| afbe61cf AM |
14868 | { |
| 14869 | /* Lie about opd entries. This case occurs | |
| 14870 | when building shared libraries and we | |
| 14871 | reference a function in another shared | |
| 3fad3c7c AM |
14872 | lib. The same thing happens for a weak |
| 14873 | definition in an application that's | |
| 14874 | overridden by a strong definition in a | |
| 14875 | shared lib. (I believe this is a generic | |
| 14876 | bug in binutils handling of weak syms.) | |
| 14877 | In these cases we won't use the opd | |
| 1e2f5b6e | 14878 | entry in this lib. */ |
| b34976b6 | 14879 | unresolved_reloc = FALSE; |
| afbe61cf | 14880 | } |
| 25f23106 AM |
14881 | if (!is_opd |
| 14882 | && r_type == R_PPC64_ADDR64 | |
| 14883 | && (h != NULL | |
| 14884 | ? h->elf.type == STT_GNU_IFUNC | |
| 14885 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14886 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14887 | else | |
| 14888 | { | |
| 14889 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14890 | |
| 25f23106 AM |
14891 | /* We need to relocate .opd contents for ld.so. |
| 14892 | Prelink also wants simple and consistent rules | |
| 14893 | for relocs. This make all RELATIVE relocs have | |
| 14894 | *r_offset equal to r_addend. */ | |
| 14895 | relocate = TRUE; | |
| 14896 | } | |
| 65f38f15 AM |
14897 | } |
| 14898 | else | |
| 14899 | { | |
| 25f23106 AM |
14900 | if (h != NULL |
| 14901 | ? h->elf.type == STT_GNU_IFUNC | |
| 14902 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14903 | { | |
| 25f53a85 | 14904 | info->callbacks->einfo |
| 695344c0 | 14905 | /* xgettext:c-format */ |
| 174d0a74 | 14906 | (_("%H: %s for indirect " |
| bc30df16 | 14907 | "function `%T' unsupported\n"), |
| 25f53a85 | 14908 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14909 | ppc64_elf_howto_table[r_type]->name, |
| 14910 | sym_name); | |
| 14911 | ret = FALSE; | |
| 14912 | } | |
| cf35638d | 14913 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14914 | ; |
| 14915 | else if (sec == NULL || sec->owner == NULL) | |
| 14916 | { | |
| 14917 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14918 | return FALSE; |
| 65f38f15 AM |
14919 | } |
| 14920 | else | |
| 14921 | { | |
| 14922 | asection *osec; | |
| 14923 | ||
| 14924 | osec = sec->output_section; | |
| 14925 | indx = elf_section_data (osec)->dynindx; | |
| 14926 | ||
| 74541ad4 AM |
14927 | if (indx == 0) |
| 14928 | { | |
| 14929 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14930 | && htab->elf.data_index_section != NULL) | |
| 14931 | osec = htab->elf.data_index_section; | |
| 14932 | else | |
| 14933 | osec = htab->elf.text_index_section; | |
| 14934 | indx = elf_section_data (osec)->dynindx; | |
| 14935 | } | |
| 14936 | BFD_ASSERT (indx != 0); | |
| 14937 | ||
| 65f38f15 AM |
14938 | /* We are turning this relocation into one |
| 14939 | against a section symbol, so subtract out | |
| 14940 | the output section's address but not the | |
| 14941 | offset of the input section in the output | |
| 14942 | section. */ | |
| 14943 | outrel.r_addend -= osec->vma; | |
| 14944 | } | |
| 14945 | ||
| 14946 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14947 | } | |
| 14948 | } | |
| 14949 | ||
| 14950 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14951 | if (h != NULL |
| 14952 | ? h->elf.type == STT_GNU_IFUNC | |
| 14953 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
14954 | { |
| 14955 | sreloc = htab->elf.irelplt; | |
| 14956 | if (indx == 0) | |
| 14957 | htab->local_ifunc_resolver = 1; | |
| 14958 | else if (is_static_defined (&h->elf)) | |
| 14959 | htab->maybe_local_ifunc_resolver = 1; | |
| 14960 | } | |
| 65f38f15 AM |
14961 | if (sreloc == NULL) |
| 14962 | abort (); | |
| 14963 | ||
| dfbb6ac9 AM |
14964 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14965 | >= sreloc->size) | |
| 14966 | abort (); | |
| 947216bf AM |
14967 | loc = sreloc->contents; |
| 14968 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14969 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14970 | ||
| 14971 | /* If this reloc is against an external symbol, it will | |
| 14972 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14973 | anything now. However, for the sake of prelink ensure |
| 14974 | that the section contents are a known value. */ | |
| 65f38f15 | 14975 | if (! relocate) |
| 81407a69 AM |
14976 | { |
| 14977 | unresolved_reloc = FALSE; | |
| 14978 | /* The value chosen here is quite arbitrary as ld.so | |
| 14979 | ignores section contents except for the special | |
| 14980 | case of .opd where the contents might be accessed | |
| 14981 | before relocation. Choose zero, as that won't | |
| 14982 | cause reloc overflow. */ | |
| 14983 | relocation = 0; | |
| 14984 | addend = 0; | |
| 14985 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14986 | to improve backward compatibility with older | |
| 14987 | versions of ld. */ | |
| 14988 | if (r_type == R_PPC64_ADDR64) | |
| 14989 | addend = outrel.r_addend; | |
| 14990 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14991 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 14992 | addend = outrel.r_offset; |
| 81407a69 | 14993 | } |
| 65f38f15 | 14994 | } |
| 5bd4f169 AM |
14995 | break; |
| 14996 | ||
| 65f38f15 AM |
14997 | case R_PPC64_COPY: |
| 14998 | case R_PPC64_GLOB_DAT: | |
| 14999 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15000 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15001 | case R_PPC64_RELATIVE: |
| 15002 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15003 | files. */ | |
| ae9a127f | 15004 | /* Fall through. */ |
| 65f38f15 AM |
15005 | |
| 15006 | case R_PPC64_PLTGOT16: | |
| 15007 | case R_PPC64_PLTGOT16_DS: | |
| 15008 | case R_PPC64_PLTGOT16_HA: | |
| 15009 | case R_PPC64_PLTGOT16_HI: | |
| 15010 | case R_PPC64_PLTGOT16_LO: | |
| 15011 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15012 | case R_PPC64_PLTREL32: | |
| 15013 | case R_PPC64_PLTREL64: | |
| 15014 | /* These ones haven't been implemented yet. */ | |
| 15015 | ||
| 25f53a85 | 15016 | info->callbacks->einfo |
| 695344c0 | 15017 | /* xgettext:c-format */ |
| 871b3ab2 | 15018 | (_("%P: %pB: %s is not supported for `%T'\n"), |
| d003868e | 15019 | input_bfd, |
| 4ce794b7 | 15020 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15021 | |
| 15022 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15023 | ret = FALSE; |
| c316a17c | 15024 | goto copy_reloc; |
| 65f38f15 | 15025 | } |
| 5bd4f169 | 15026 | |
| 67f0cbdb AM |
15027 | /* Multi-instruction sequences that access the TOC can be |
| 15028 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 07d6d2b8 | 15029 | to nop; addi rb,r2,x; */ |
| 67f0cbdb AM |
15030 | switch (r_type) |
| 15031 | { | |
| 15032 | default: | |
| 15033 | break; | |
| 15034 | ||
| 15035 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15036 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15037 | case R_PPC64_GOT_TPREL16_HI: | |
| 15038 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15039 | case R_PPC64_GOT16_HI: | |
| 15040 | case R_PPC64_TOC16_HI: | |
| 15041 | /* These relocs would only be useful if building up an | |
| 15042 | offset to later add to r2, perhaps in an indexed | |
| 15043 | addressing mode instruction. Don't try to optimize. | |
| 15044 | Unfortunately, the possibility of someone building up an | |
| 15045 | offset like this or even with the HA relocs, means that | |
| 15046 | we need to check the high insn when optimizing the low | |
| 15047 | insn. */ | |
| 15048 | break; | |
| 15049 | ||
| 15050 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15051 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15052 | case R_PPC64_GOT_TPREL16_HA: | |
| 15053 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15054 | case R_PPC64_GOT16_HA: | |
| 15055 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15056 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15057 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15058 | { |
| 15059 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15060 | bfd_put_32 (input_bfd, NOP, p); | |
| d830549d | 15061 | goto copy_reloc; |
| 98528052 | 15062 | } |
| 67f0cbdb AM |
15063 | break; |
| 15064 | ||
| 15065 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15066 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15067 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15068 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15069 | case R_PPC64_GOT16_LO: | |
| 15070 | case R_PPC64_GOT16_LO_DS: | |
| 15071 | case R_PPC64_TOC16_LO: | |
| 15072 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15073 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15074 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15075 | { |
| 15076 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15077 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15078 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15079 | { | |
| 15080 | /* Transform addic to addi when we change reg. */ | |
| 15081 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15082 | insn |= (14u << 26) | (2 << 16); | |
| 15083 | } | |
| 15084 | else | |
| 67f0cbdb | 15085 | { |
| 98528052 AM |
15086 | insn &= ~(0x1f << 16); |
| 15087 | insn |= 2 << 16; | |
| 67f0cbdb | 15088 | } |
| 560c8763 | 15089 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15090 | } |
| 15091 | break; | |
| 9a23f96e AM |
15092 | |
| 15093 | case R_PPC64_TPREL16_HA: | |
| 15094 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15095 | { | |
| 15096 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15097 | insn = bfd_get_32 (input_bfd, p); | |
| 15098 | if ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 15099 | != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */) | |
| 15100 | /* xgettext:c-format */ | |
| 15101 | info->callbacks->minfo | |
| 15102 | (_("%H: warning: %s unexpected insn %#x.\n"), | |
| d830549d AM |
15103 | input_bfd, input_section, rel->r_offset, |
| 15104 | ppc64_elf_howto_table[r_type]->name, insn); | |
| 9a23f96e | 15105 | else |
| d830549d AM |
15106 | { |
| 15107 | bfd_put_32 (input_bfd, NOP, p); | |
| 15108 | goto copy_reloc; | |
| 15109 | } | |
| 9a23f96e AM |
15110 | } |
| 15111 | break; | |
| 15112 | ||
| 15113 | case R_PPC64_TPREL16_LO: | |
| 15114 | case R_PPC64_TPREL16_LO_DS: | |
| 15115 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15116 | { | |
| 15117 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15118 | insn = bfd_get_32 (input_bfd, p); | |
| 15119 | insn &= ~(0x1f << 16); | |
| 15120 | insn |= 13 << 16; | |
| 15121 | bfd_put_32 (input_bfd, insn, p); | |
| 15122 | } | |
| 15123 | break; | |
| 67f0cbdb AM |
15124 | } |
| 15125 | ||
| 65f38f15 AM |
15126 | /* Do any further special processing. */ |
| 15127 | switch (r_type) | |
| 15128 | { | |
| 15129 | default: | |
| 15130 | break; | |
| 15131 | ||
| 25f23106 | 15132 | case R_PPC64_REL16_HA: |
| a680de9a | 15133 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15134 | case R_PPC64_ADDR16_HA: |
| 15135 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15136 | case R_PPC64_ADDR16_HIGHERA: |
| 15137 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15138 | case R_PPC64_TOC16_HA: |
| 15139 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15140 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15141 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15142 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15143 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15144 | case R_PPC64_DTPREL16_HA: |
| 15145 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15146 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15147 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15148 | /* It's just possible that this symbol is a weak symbol |
| 15149 | that's not actually defined anywhere. In that case, | |
| 15150 | 'sec' would be NULL, and we should leave the symbol | |
| 15151 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15152 | if (sec == NULL) |
| 15153 | break; | |
| 1a0670f3 | 15154 | /* Fall through. */ |
| 5c5f6e17 AM |
15155 | |
| 15156 | case R_PPC64_GOT16_HA: | |
| 15157 | case R_PPC64_PLTGOT16_HA: | |
| 15158 | case R_PPC64_PLT16_HA: | |
| 15159 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15160 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15161 | case R_PPC64_GOT_TPREL16_HA: | |
| 15162 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15163 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15164 | Bits 0:15 are not used. */ | |
| 15165 | addend += 0x8000; | |
| 65f38f15 AM |
15166 | break; |
| 15167 | ||
| 15168 | case R_PPC64_ADDR16_DS: | |
| 15169 | case R_PPC64_ADDR16_LO_DS: | |
| 15170 | case R_PPC64_GOT16_DS: | |
| 15171 | case R_PPC64_GOT16_LO_DS: | |
| 15172 | case R_PPC64_PLT16_LO_DS: | |
| 15173 | case R_PPC64_SECTOFF_DS: | |
| 15174 | case R_PPC64_SECTOFF_LO_DS: | |
| 15175 | case R_PPC64_TOC16_DS: | |
| 15176 | case R_PPC64_TOC16_LO_DS: | |
| 15177 | case R_PPC64_PLTGOT16_DS: | |
| 15178 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15179 | case R_PPC64_GOT_TPREL16_DS: |
| 15180 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15181 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15182 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15183 | case R_PPC64_TPREL16_DS: | |
| 15184 | case R_PPC64_TPREL16_LO_DS: | |
| 15185 | case R_PPC64_DTPREL16_DS: | |
| 15186 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15187 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15188 | mask = 3; | |
| a680de9a PB |
15189 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15190 | the value must be a multiple of 16. This is somewhat of | |
| 15191 | a hack, but the "correct" way to do this by defining _DQ | |
| 15192 | forms of all the _DS relocs bloats all reloc switches in | |
| 15193 | this file. It doesn't make much sense to use these | |
| 15194 | relocs in data, so testing the insn should be safe. */ | |
| 15195 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15196 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15197 | mask = 15; |
| a680de9a PB |
15198 | relocation += addend; |
| 15199 | addend = insn & (mask ^ 3); | |
| 15200 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15201 | { |
| a680de9a | 15202 | relocation ^= relocation & mask; |
| 25f53a85 | 15203 | info->callbacks->einfo |
| 695344c0 | 15204 | /* xgettext:c-format */ |
| 174d0a74 | 15205 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15206 | input_bfd, input_section, rel->r_offset, |
| d830549d | 15207 | ppc64_elf_howto_table[r_type]->name, |
| adadcc0c | 15208 | mask + 1); |
| 65f38f15 | 15209 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15210 | ret = FALSE; |
| c316a17c | 15211 | goto copy_reloc; |
| 65f38f15 AM |
15212 | } |
| 15213 | break; | |
| 5bd4f169 AM |
15214 | } |
| 15215 | ||
| 239e1f3a AM |
15216 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15217 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15218 | not process them. */ | |
| d830549d | 15219 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 | 15220 | if (unresolved_reloc |
| 239e1f3a | 15221 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15222 | && h->elf.def_dynamic) |
| 15223 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15224 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15225 | { |
| 25f53a85 | 15226 | info->callbacks->einfo |
| 695344c0 | 15227 | /* xgettext:c-format */ |
| 174d0a74 | 15228 | (_("%H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15229 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15230 | howto->name, |
| 039b3fef | 15231 | h->elf.root.root.string); |
| b34976b6 | 15232 | ret = FALSE; |
| 9c07fe7c | 15233 | } |
| 5bd4f169 | 15234 | |
| b80eed39 AM |
15235 | /* 16-bit fields in insns mostly have signed values, but a |
| 15236 | few insns have 16-bit unsigned values. Really, we should | |
| 15237 | have different reloc types. */ | |
| 15238 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15239 | && howto->dst_mask == 0xffff | |
| 15240 | && (input_section->flags & SEC_CODE) != 0) | |
| 15241 | { | |
| 15242 | enum complain_overflow complain = complain_overflow_signed; | |
| 15243 | ||
| 15244 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15245 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15246 | complain = complain_overflow_bitfield; | |
| 15247 | else if (howto->rightshift == 0 | |
| 15248 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15249 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15250 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15251 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15252 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15253 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15254 | complain = complain_overflow_unsigned; |
| 15255 | if (howto->complain_on_overflow != complain) | |
| 15256 | { | |
| 15257 | alt_howto = *howto; | |
| 15258 | alt_howto.complain_on_overflow = complain; | |
| 15259 | howto = &alt_howto; | |
| 15260 | } | |
| 15261 | } | |
| 15262 | ||
| a680de9a PB |
15263 | if (r_type == R_PPC64_REL16DX_HA) |
| 15264 | { | |
| 15265 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15266 | if (rel->r_offset + 4 > input_section->size) | |
| 15267 | r = bfd_reloc_outofrange; | |
| 15268 | else | |
| 15269 | { | |
| 15270 | relocation += addend; | |
| 15271 | relocation -= (rel->r_offset | |
| 15272 | + input_section->output_offset | |
| 15273 | + input_section->output_section->vma); | |
| 3de43e7b | 15274 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15275 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15276 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15277 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15278 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15279 | r = bfd_reloc_ok; | |
| 3de43e7b | 15280 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15281 | r = bfd_reloc_overflow; |
| 15282 | } | |
| 15283 | } | |
| 15284 | else | |
| 15285 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15286 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15287 | |
| ef60b7ff | 15288 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15289 | { |
| bc30df16 | 15290 | char *more_info = NULL; |
| b80eed39 | 15291 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15292 | |
| 15293 | if (reloc_dest != DEST_NORMAL) | |
| 15294 | { | |
| 15295 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15296 | if (more_info != NULL) | |
| 15297 | { | |
| 15298 | strcpy (more_info, reloc_name); | |
| 15299 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15300 | ? " (OPD)" : " (stub)")); | |
| 15301 | reloc_name = more_info; | |
| 15302 | } | |
| 15303 | } | |
| 15304 | ||
| cd27b276 | 15305 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15306 | { |
| 8131c122 AM |
15307 | /* On code like "if (foo) foo();" don't report overflow |
| 15308 | on a branch to zero when foo is undefined. */ | |
| 15309 | if (!warned | |
| 15310 | && (reloc_dest == DEST_STUB | |
| 15311 | || !(h != NULL | |
| 15312 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15313 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15314 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15315 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15316 | sym_name, reloc_name, | |
| 15317 | orig_rel.r_addend, | |
| 15318 | input_bfd, input_section, | |
| 15319 | rel->r_offset); | |
| ef60b7ff AM |
15320 | } |
| 15321 | else | |
| 15322 | { | |
| 25f53a85 | 15323 | info->callbacks->einfo |
| 695344c0 | 15324 | /* xgettext:c-format */ |
| 174d0a74 | 15325 | (_("%H: %s against `%T': error %d\n"), |
| 25f53a85 | 15326 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15327 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15328 | ret = FALSE; |
| ef60b7ff | 15329 | } |
| bc30df16 AM |
15330 | if (more_info != NULL) |
| 15331 | free (more_info); | |
| 5bd4f169 | 15332 | } |
| c316a17c AM |
15333 | copy_reloc: |
| 15334 | if (wrel != rel) | |
| 15335 | *wrel = *rel; | |
| 15336 | } | |
| 15337 | ||
| 15338 | if (wrel != rel) | |
| 15339 | { | |
| 15340 | Elf_Internal_Shdr *rel_hdr; | |
| 15341 | size_t deleted = rel - wrel; | |
| 15342 | ||
| 15343 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15344 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15345 | if (rel_hdr->sh_size == 0) | |
| 15346 | { | |
| 15347 | /* It is too late to remove an empty reloc section. Leave | |
| 15348 | one NONE reloc. | |
| 15349 | ??? What is wrong with an empty section??? */ | |
| 15350 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15351 | deleted -= 1; | |
| 15352 | } | |
| 15353 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15354 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15355 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15356 | } |
| 15357 | ||
| 645ea6a9 AM |
15358 | /* If we're emitting relocations, then shortly after this function |
| 15359 | returns, reloc offsets and addends for this section will be | |
| 15360 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15361 | file rather than the input. Save a copy of the relocs for |
| 15362 | opd_entry_value. */ | |
| 0e1862bb | 15363 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15364 | { |
| 15365 | bfd_size_type amt; | |
| 15366 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15367 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15368 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15369 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15370 | if (rel == NULL) |
| 15371 | return FALSE; | |
| 15372 | memcpy (rel, relocs, amt); | |
| 15373 | } | |
| 5bd4f169 AM |
15374 | return ret; |
| 15375 | } | |
| 15376 | ||
| 754021d0 AM |
15377 | /* Adjust the value of any local symbols in opd sections. */ |
| 15378 | ||
| 6e0b88f1 | 15379 | static int |
| 754021d0 AM |
15380 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15381 | const char *name ATTRIBUTE_UNUSED, | |
| 15382 | Elf_Internal_Sym *elfsym, | |
| 15383 | asection *input_sec, | |
| 15384 | struct elf_link_hash_entry *h) | |
| 15385 | { | |
| 74f0fb50 AM |
15386 | struct _opd_sec_data *opd; |
| 15387 | long adjust; | |
| 754021d0 AM |
15388 | bfd_vma value; |
| 15389 | ||
| 4025353c | 15390 | if (h != NULL) |
| 6e0b88f1 | 15391 | return 1; |
| 4025353c | 15392 | |
| 74f0fb50 AM |
15393 | opd = get_opd_info (input_sec); |
| 15394 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15395 | return 1; |
| 754021d0 AM |
15396 | |
| 15397 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15398 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15399 | value -= input_sec->output_section->vma; |
| 15400 | ||
| 51aecdc5 | 15401 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15402 | if (adjust == -1) |
| 6e0b88f1 AM |
15403 | return 2; |
| 15404 | ||
| 15405 | elfsym->st_value += adjust; | |
| 15406 | return 1; | |
| 754021d0 AM |
15407 | } |
| 15408 | ||
| 5bd4f169 AM |
15409 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15410 | dynamic sections here. */ | |
| 15411 | ||
| b34976b6 | 15412 | static bfd_boolean |
| 4ce794b7 AM |
15413 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15414 | struct bfd_link_info *info, | |
| 15415 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 15416 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 15417 | { |
| 65f38f15 | 15418 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15419 | struct plt_entry *ent; |
| 15420 | Elf_Internal_Rela rela; | |
| 15421 | bfd_byte *loc; | |
| 5bd4f169 | 15422 | |
| 65f38f15 | 15423 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15424 | if (htab == NULL) |
| 15425 | return FALSE; | |
| 5bd4f169 | 15426 | |
| 8387904d AM |
15427 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15428 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15429 | { | |
| 15430 | /* This symbol has an entry in the procedure linkage | |
| 15431 | table. Set it up. */ | |
| e054468f AM |
15432 | if (!htab->elf.dynamic_sections_created |
| 15433 | || h->dynindx == -1) | |
| 15434 | { | |
| 15435 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15436 | && h->def_regular | |
| 15437 | && (h->root.type == bfd_link_hash_defined | |
| 15438 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15439 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15440 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15441 | + ent->plt.offset); |
| ee67d69a AM |
15442 | if (htab->opd_abi) |
| 15443 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15444 | else | |
| 15445 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15446 | rela.r_addend = (h->root.u.def.value |
| 15447 | + h->root.u.def.section->output_offset | |
| 15448 | + h->root.u.def.section->output_section->vma | |
| 15449 | + ent->addend); | |
| 33e44f2e AM |
15450 | loc = (htab->elf.irelplt->contents |
| 15451 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15452 | * sizeof (Elf64_External_Rela))); |
| 82e66161 | 15453 | htab->local_ifunc_resolver = 1; |
| e054468f AM |
15454 | } |
| 15455 | else | |
| 15456 | { | |
| 33e44f2e AM |
15457 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15458 | + htab->elf.splt->output_offset | |
| 25f23106 | 15459 | + ent->plt.offset); |
| e054468f AM |
15460 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15461 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15462 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15463 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15464 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 82e66161 AM |
15465 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) |
| 15466 | htab->maybe_local_ifunc_resolver = 1; | |
| e054468f | 15467 | } |
| 8387904d | 15468 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15469 | |
| 15470 | if (!htab->opd_abi) | |
| 15471 | { | |
| 15472 | if (!h->def_regular) | |
| 15473 | { | |
| 15474 | /* Mark the symbol as undefined, rather than as | |
| 15475 | defined in glink. Leave the value if there were | |
| 15476 | any relocations where pointer equality matters | |
| 15477 | (this is a clue for the dynamic linker, to make | |
| 15478 | function pointer comparisons work between an | |
| 15479 | application and shared library), otherwise set it | |
| 15480 | to zero. */ | |
| 15481 | sym->st_shndx = SHN_UNDEF; | |
| 15482 | if (!h->pointer_equality_needed) | |
| 15483 | sym->st_value = 0; | |
| 15484 | else if (!h->ref_regular_nonweak) | |
| 15485 | { | |
| 15486 | /* This breaks function pointer comparisons, but | |
| 15487 | that is better than breaking tests for a NULL | |
| 15488 | function pointer. */ | |
| 15489 | sym->st_value = 0; | |
| 15490 | } | |
| 15491 | } | |
| 15492 | } | |
| 8387904d | 15493 | } |
| 5bd4f169 | 15494 | |
| f5385ebf | 15495 | if (h->needs_copy) |
| 5bd4f169 | 15496 | { |
| 65f38f15 | 15497 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15498 | asection *srel; |
| 5bd4f169 | 15499 | |
| 65f38f15 AM |
15500 | if (h->dynindx == -1 |
| 15501 | || (h->root.type != bfd_link_hash_defined | |
| 15502 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15503 | || htab->elf.srelbss == NULL |
| 15504 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15505 | abort (); |
| 5bd4f169 AM |
15506 | |
| 15507 | rela.r_offset = (h->root.u.def.value | |
| 15508 | + h->root.u.def.section->output_section->vma | |
| 15509 | + h->root.u.def.section->output_offset); | |
| 15510 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15511 | rela.r_addend = 0; | |
| afbf7e8e | 15512 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
15513 | srel = htab->elf.sreldynrelro; |
| 15514 | else | |
| 15515 | srel = htab->elf.srelbss; | |
| 15516 | loc = srel->contents; | |
| 15517 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15518 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15519 | } |
| 15520 | ||
| b34976b6 | 15521 | return TRUE; |
| 5bd4f169 AM |
15522 | } |
| 15523 | ||
| 65f38f15 AM |
15524 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15525 | dynamic linker, before writing them out. */ | |
| 15526 | ||
| 15527 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15528 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15529 | const asection *rel_sec, | |
| 15530 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15531 | { |
| 04c9666a | 15532 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15533 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15534 | ||
| 33e44f2e | 15535 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15536 | return reloc_class_ifunc; |
| a33d1f77 | 15537 | |
| 4ce794b7 | 15538 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15539 | switch (r_type) |
| 65f38f15 AM |
15540 | { |
| 15541 | case R_PPC64_RELATIVE: | |
| 15542 | return reloc_class_relative; | |
| 15543 | case R_PPC64_JMP_SLOT: | |
| 15544 | return reloc_class_plt; | |
| 15545 | case R_PPC64_COPY: | |
| 15546 | return reloc_class_copy; | |
| 15547 | default: | |
| 15548 | return reloc_class_normal; | |
| 15549 | } | |
| 15550 | } | |
| 15551 | ||
| 5bd4f169 AM |
15552 | /* Finish up the dynamic sections. */ |
| 15553 | ||
| b34976b6 | 15554 | static bfd_boolean |
| 4ce794b7 AM |
15555 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15556 | struct bfd_link_info *info) | |
| 5bd4f169 | 15557 | { |
| 65f38f15 AM |
15558 | struct ppc_link_hash_table *htab; |
| 15559 | bfd *dynobj; | |
| 5bd4f169 | 15560 | asection *sdyn; |
| 5bd4f169 | 15561 | |
| 65f38f15 | 15562 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15563 | if (htab == NULL) |
| 15564 | return FALSE; | |
| 15565 | ||
| 65f38f15 | 15566 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15567 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15568 | |
| 65f38f15 | 15569 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15570 | { |
| 5bd4f169 AM |
15571 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15572 | ||
| 33e44f2e | 15573 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15574 | abort (); |
| 5bd4f169 AM |
15575 | |
| 15576 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15577 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15578 | for (; dyncon < dynconend; dyncon++) |
| 15579 | { | |
| 15580 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15581 | asection *s; |
| 5bd4f169 AM |
15582 | |
| 15583 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15584 | ||
| 15585 | switch (dyn.d_tag) | |
| 15586 | { | |
| 65f38f15 AM |
15587 | default: |
| 15588 | continue; | |
| 5bd4f169 | 15589 | |
| 5d1634d7 | 15590 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15591 | s = htab->glink; |
| 6348e046 | 15592 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15593 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15594 | of glink rather than the first entry point, which is | |
| 15595 | what ld.so needs, and now have a bigger stub to | |
| 15596 | support automatic multiple TOCs. */ | |
| 9e390558 | 15597 | dyn.d_un.d_ptr += GLINK_PLTRESOLVE_SIZE (htab) - 8 * 4; |
| 5d1634d7 AM |
15598 | break; |
| 15599 | ||
| 19397422 AM |
15600 | case DT_PPC64_OPD: |
| 15601 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15602 | if (s == NULL) |
| 15603 | continue; | |
| 15604 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15605 | break; |
| 15606 | ||
| e8910a83 AM |
15607 | case DT_PPC64_OPT: |
| 15608 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15609 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
15610 | if (htab->has_plt_localentry0) |
| 15611 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
15612 | break; |
| 15613 | ||
| 19397422 AM |
15614 | case DT_PPC64_OPDSZ: |
| 15615 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15616 | if (s == NULL) |
| 15617 | continue; | |
| eea6121a | 15618 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15619 | break; |
| 15620 | ||
| 65f38f15 | 15621 | case DT_PLTGOT: |
| 33e44f2e | 15622 | s = htab->elf.splt; |
| 6348e046 | 15623 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15624 | break; |
| 15625 | ||
| 15626 | case DT_JMPREL: | |
| 33e44f2e | 15627 | s = htab->elf.srelplt; |
| 6348e046 | 15628 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15629 | break; |
| 5bd4f169 | 15630 | |
| 65f38f15 | 15631 | case DT_PLTRELSZ: |
| 33e44f2e | 15632 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15633 | break; |
| 82e66161 AM |
15634 | |
| 15635 | case DT_TEXTREL: | |
| 15636 | if (htab->local_ifunc_resolver) | |
| 15637 | info->callbacks->einfo | |
| 15638 | (_("%X%P: text relocations and GNU indirect " | |
| 15639 | "functions will result in a segfault at runtime\n")); | |
| 15640 | else if (htab->maybe_local_ifunc_resolver) | |
| 15641 | info->callbacks->einfo | |
| 15642 | (_("%P: warning: text relocations and GNU indirect " | |
| 15643 | "functions may result in a segfault at runtime\n")); | |
| 15644 | continue; | |
| 5bd4f169 | 15645 | } |
| 5bd4f169 | 15646 | |
| 65f38f15 | 15647 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15648 | } |
| 5bd4f169 AM |
15649 | } |
| 15650 | ||
| 6528b6eb AM |
15651 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 15652 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15653 | { |
| 15654 | /* Fill in the first entry in the global offset table. | |
| 15655 | We use it to hold the link-time TOCbase. */ | |
| 15656 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15657 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15658 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15659 | |
| 15660 | /* Set .got entry size. */ | |
| 33e44f2e | 15661 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15662 | } |
| 15663 | ||
| 6528b6eb AM |
15664 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 15665 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15666 | { |
| 15667 | /* Set .plt entry size. */ | |
| 33e44f2e | 15668 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15669 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15670 | } |
| 15671 | ||
| 84f5d08e AM |
15672 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15673 | brlt ourselves if emitrelocations. */ | |
| 15674 | if (htab->brlt != NULL | |
| 15675 | && htab->brlt->reloc_count != 0 | |
| 15676 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15677 | htab->brlt, | |
| d4730f92 | 15678 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15679 | elf_section_data (htab->brlt)->relocs, |
| 15680 | NULL)) | |
| 15681 | return FALSE; | |
| 15682 | ||
| 176a0d42 AM |
15683 | if (htab->glink != NULL |
| 15684 | && htab->glink->reloc_count != 0 | |
| 15685 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15686 | htab->glink, | |
| d4730f92 | 15687 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15688 | elf_section_data (htab->glink)->relocs, |
| 15689 | NULL)) | |
| 15690 | return FALSE; | |
| 15691 | ||
| 58d180e8 | 15692 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15693 | && htab->glink_eh_frame->size != 0) |
| 15694 | { | |
| 15695 | bfd_vma val; | |
| 15696 | bfd_byte *p; | |
| d4aaa2a0 | 15697 | struct map_stub *group; |
| 2e0ce1c8 | 15698 | size_t align = 4; |
| da44f4e5 | 15699 | |
| 2e0ce1c8 AM |
15700 | p = htab->glink_eh_frame->contents; |
| 15701 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
15702 | |
| 15703 | for (group = htab->group; group != NULL; group = group->next) | |
| 15704 | if (group->stub_sec != NULL) | |
| da44f4e5 | 15705 | { |
| da44f4e5 | 15706 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
15707 | val = (group->stub_sec->output_section->vma |
| 15708 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
15709 | val -= (htab->glink_eh_frame->output_section->vma |
| 15710 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15711 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15712 | if (val + 0x80000000 > 0xffffffff) |
| 15713 | { | |
| 15714 | info->callbacks->einfo | |
| 15715 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 15716 | group->stub_sec->name); |
| da44f4e5 AM |
15717 | return FALSE; |
| 15718 | } | |
| d4aaa2a0 AM |
15719 | bfd_put_32 (dynobj, val, p + 8); |
| 15720 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
15721 | } |
| 15722 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15723 | { | |
| da44f4e5 AM |
15724 | /* Offset to .glink. */ |
| 15725 | val = (htab->glink->output_section->vma | |
| 15726 | + htab->glink->output_offset | |
| 15727 | + 8); | |
| 15728 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15729 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15730 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15731 | if (val + 0x80000000 > 0xffffffff) |
| 15732 | { | |
| 15733 | info->callbacks->einfo | |
| 15734 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15735 | htab->glink->name); | |
| 15736 | return FALSE; | |
| 15737 | } | |
| d4aaa2a0 AM |
15738 | bfd_put_32 (dynobj, val, p + 8); |
| 15739 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
15740 | } |
| 15741 | ||
| 15742 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15743 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15744 | htab->glink_eh_frame, | |
| 15745 | htab->glink_eh_frame->contents)) | |
| 15746 | return FALSE; | |
| 15747 | } | |
| 58d180e8 | 15748 | |
| e717da7e | 15749 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15750 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15751 | bfd. */ | |
| c72f2fb2 | 15752 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15753 | { |
| 15754 | asection *s; | |
| 7b53ace3 | 15755 | |
| 0c8d6e5c | 15756 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15757 | continue; |
| 15758 | ||
| e717da7e AM |
15759 | s = ppc64_elf_tdata (dynobj)->got; |
| 15760 | if (s != NULL | |
| eea6121a | 15761 | && s->size != 0 |
| e717da7e AM |
15762 | && s->output_section != bfd_abs_section_ptr |
| 15763 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15764 | s->contents, s->output_offset, | |
| eea6121a | 15765 | s->size)) |
| e717da7e AM |
15766 | return FALSE; |
| 15767 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15768 | if (s != NULL | |
| eea6121a | 15769 | && s->size != 0 |
| e717da7e AM |
15770 | && s->output_section != bfd_abs_section_ptr |
| 15771 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15772 | s->contents, s->output_offset, | |
| eea6121a | 15773 | s->size)) |
| e717da7e AM |
15774 | return FALSE; |
| 15775 | } | |
| f6c52c13 | 15776 | |
| b34976b6 | 15777 | return TRUE; |
| 5bd4f169 AM |
15778 | } |
| 15779 | ||
| 5bd4f169 | 15780 | #include "elf64-target.h" |
| 7b8e7dad AM |
15781 | |
| 15782 | /* FreeBSD support */ | |
| 15783 | ||
| 15784 | #undef TARGET_LITTLE_SYM | |
| 15785 | #undef TARGET_LITTLE_NAME | |
| 15786 | ||
| 15787 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15788 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15789 | #undef TARGET_BIG_NAME |
| 15790 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15791 | ||
| 15792 | #undef ELF_OSABI | |
| 15793 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15794 | ||
| 15795 | #undef elf64_bed | |
| 15796 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15797 | ||
| 15798 | #include "elf64-target.h" |