projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 2571583a | 2 | Copyright (C) 1999-2017 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 |
| 74f0fb50 | 104 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 105 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 AM |
106 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| 107 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
| 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 |
| ad8e1ba5 | 124 | |
| 5bd4f169 AM |
125 | /* The name of the dynamic interpreter. This is put in the .interp |
| 126 | section. */ | |
| 127 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 128 | ||
| 129 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 130 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
131 | |
| 132 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 133 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 134 | |
| a078d95a AM |
135 | /* Offsets to some stack save slots. */ |
| 136 | #define STK_LR 16 | |
| 137 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 138 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
139 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 140 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 141 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 142 | ||
| 5bd4f169 | 143 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 144 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
145 | /* TOC base alignment. */ |
| 146 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
147 | |
| 148 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 149 | #define TP_OFFSET 0x7000 | |
| 150 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 151 | |
| ad8e1ba5 AM |
152 | /* .plt call stub instructions. The normal stub is like this, but |
| 153 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 154 | insert an addi to adjust r11. */ |
| a078d95a | 155 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
156 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 157 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 158 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 159 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 160 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
161 | #define BCTR 0x4e800420 /* bctr */ |
| 162 | ||
| 71a39c98 | 163 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
164 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 165 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 166 | ||
| 71a39c98 AM |
167 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 168 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 169 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
170 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 171 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 172 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 173 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 174 | ||
| 71a39c98 | 175 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
176 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 177 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 178 | ||
| a078d95a | 179 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 006589cf AM |
180 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ |
| 181 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 182 | |
| 006589cf AM |
183 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 184 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ | |
| 185 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d AM |
186 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 187 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 188 | ||
| ee4bf8d2 | 189 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 190 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
191 | /* 0: */ |
| 192 | /* .quad plt0-1f */ | |
| 193 | /* __glink: */ | |
| 194 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 195 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 196 | /* 1: */ | |
| 197 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 198 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 199 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
200 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 201 | /* ld %12,0(%11) */ | |
| 202 | /* ld %2,8(%11) */ | |
| 203 | /* mtctr %12 */ | |
| 204 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 205 | /* bctr */ |
| b9e5796b AM |
206 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 207 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 208 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 209 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 210 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
211 | |
| 212 | /* Pad with this. */ | |
| 213 | #define NOP 0x60000000 | |
| 214 | ||
| 721956f4 AM |
215 | /* Some other nops. */ |
| 216 | #define CROR_151515 0x4def7b82 | |
| 217 | #define CROR_313131 0x4ffffb82 | |
| 218 | ||
| cedb70c5 | 219 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
220 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 221 | #define B_DOT 0x48000000 /* b . */ | |
| 222 | ||
| 223 | /* After that, we need two instructions to load the index, followed by | |
| 224 | a branch. */ | |
| 225 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 226 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 227 | |
| deb0e272 AM |
228 | /* Instructions used by the save and restore reg functions. */ |
| 229 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 230 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 231 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 232 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
233 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 234 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
235 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 236 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 237 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 238 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
239 | #define BLR 0x4e800020 /* blr */ |
| 240 | ||
| 41bd81ab AM |
241 | /* Since .opd is an array of descriptors and each entry will end up |
| 242 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 243 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 244 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
245 | #ifndef NO_OPD_RELOCS |
| 246 | #define NO_OPD_RELOCS 0 | |
| 247 | #endif | |
| 810d4e75 | 248 | |
| a4b6fadd AM |
249 | #ifndef ARRAY_SIZE |
| 250 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 251 | #endif | |
| 252 | ||
| 810d4e75 AM |
253 | static inline int |
| 254 | abiversion (bfd *abfd) | |
| 255 | { | |
| 256 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 257 | } | |
| 258 | ||
| 259 | static inline void | |
| 260 | set_abiversion (bfd *abfd, int ver) | |
| 261 | { | |
| 262 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 263 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 264 | } | |
| 5bd4f169 | 265 | \f |
| f5e87a1d | 266 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 267 | |
| 5bd4f169 | 268 | /* Relocation HOWTO's. */ |
| 04c9666a | 269 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
270 | |
| 271 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 272 | /* This reloc does nothing. */ | |
| 273 | HOWTO (R_PPC64_NONE, /* type */ | |
| 274 | 0, /* rightshift */ | |
| 6346d5ca AM |
275 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 276 | 0, /* bitsize */ | |
| b34976b6 | 277 | FALSE, /* pc_relative */ |
| 5bd4f169 | 278 | 0, /* bitpos */ |
| f5e87a1d | 279 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
280 | bfd_elf_generic_reloc, /* special_function */ |
| 281 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 282 | FALSE, /* partial_inplace */ |
| d006db6c | 283 | 0, /* src_mask */ |
| 5bd4f169 | 284 | 0, /* dst_mask */ |
| b34976b6 | 285 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
286 | |
| 287 | /* A standard 32 bit relocation. */ | |
| 288 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 289 | 0, /* rightshift */ | |
| 290 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 291 | 32, /* bitsize */ | |
| b34976b6 | 292 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
293 | 0, /* bitpos */ |
| 294 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 295 | bfd_elf_generic_reloc, /* special_function */ | |
| 296 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 297 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
298 | 0, /* src_mask */ |
| 299 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 300 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
301 | |
| 302 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 303 | FIXME: we don't check that, we just clear them. */ | |
| 304 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 305 | 0, /* rightshift */ | |
| 306 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 307 | 26, /* bitsize */ | |
| b34976b6 | 308 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
309 | 0, /* bitpos */ |
| 310 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 311 | bfd_elf_generic_reloc, /* special_function */ | |
| 312 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 313 | FALSE, /* partial_inplace */ |
| d006db6c | 314 | 0, /* src_mask */ |
| f5e87a1d | 315 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 316 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
317 | |
| 318 | /* A standard 16 bit relocation. */ | |
| 319 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 320 | 0, /* rightshift */ | |
| 321 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 322 | 16, /* bitsize */ | |
| b34976b6 | 323 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
324 | 0, /* bitpos */ |
| 325 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 326 | bfd_elf_generic_reloc, /* special_function */ | |
| 327 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 328 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
329 | 0, /* src_mask */ |
| 330 | 0xffff, /* dst_mask */ | |
| b34976b6 | 331 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
332 | |
| 333 | /* A 16 bit relocation without overflow. */ | |
| 334 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 335 | 0, /* rightshift */ | |
| 336 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 337 | 16, /* bitsize */ | |
| b34976b6 | 338 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
339 | 0, /* bitpos */ |
| 340 | complain_overflow_dont,/* complain_on_overflow */ | |
| 341 | bfd_elf_generic_reloc, /* special_function */ | |
| 342 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 343 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
344 | 0, /* src_mask */ |
| 345 | 0xffff, /* dst_mask */ | |
| b34976b6 | 346 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
347 | |
| 348 | /* Bits 16-31 of an address. */ | |
| 349 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 350 | 16, /* rightshift */ | |
| 351 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 352 | 16, /* bitsize */ | |
| b34976b6 | 353 | FALSE, /* pc_relative */ |
| 5bd4f169 | 354 | 0, /* bitpos */ |
| f9c6b907 | 355 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
356 | bfd_elf_generic_reloc, /* special_function */ |
| 357 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 358 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
359 | 0, /* src_mask */ |
| 360 | 0xffff, /* dst_mask */ | |
| b34976b6 | 361 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
362 | |
| 363 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 364 | bits, treated as a signed number, is negative. */ | |
| 365 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 366 | 16, /* rightshift */ | |
| 367 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 368 | 16, /* bitsize */ | |
| b34976b6 | 369 | FALSE, /* pc_relative */ |
| 5bd4f169 | 370 | 0, /* bitpos */ |
| f9c6b907 | 371 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 372 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 373 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 374 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
375 | 0, /* src_mask */ |
| 376 | 0xffff, /* dst_mask */ | |
| b34976b6 | 377 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
378 | |
| 379 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 380 | FIXME: we don't check that, we just clear them. */ | |
| 381 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 382 | 0, /* rightshift */ | |
| 383 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 384 | 16, /* bitsize */ | |
| b34976b6 | 385 | FALSE, /* pc_relative */ |
| 5bd4f169 | 386 | 0, /* bitpos */ |
| b80eed39 | 387 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 388 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 389 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 390 | FALSE, /* partial_inplace */ |
| d006db6c | 391 | 0, /* src_mask */ |
| f5e87a1d | 392 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 393 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
394 | |
| 395 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 396 | indicate that the branch is expected to be taken. The lower two | |
| 397 | bits must be zero. */ | |
| 398 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 399 | 0, /* rightshift */ | |
| 400 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 401 | 16, /* bitsize */ | |
| b34976b6 | 402 | FALSE, /* pc_relative */ |
| 5bd4f169 | 403 | 0, /* bitpos */ |
| b80eed39 | 404 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 405 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 406 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 407 | FALSE, /* partial_inplace */ |
| d006db6c | 408 | 0, /* src_mask */ |
| f5e87a1d | 409 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 410 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
411 | |
| 412 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 413 | indicate that the branch is not expected to be taken. The lower | |
| 414 | two bits must be zero. */ | |
| 415 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 416 | 0, /* rightshift */ | |
| 417 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 418 | 16, /* bitsize */ | |
| b34976b6 | 419 | FALSE, /* pc_relative */ |
| 5bd4f169 | 420 | 0, /* bitpos */ |
| b80eed39 | 421 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 422 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 423 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 424 | FALSE, /* partial_inplace */ |
| d006db6c | 425 | 0, /* src_mask */ |
| f5e87a1d | 426 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 427 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
428 | |
| 429 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 430 | HOWTO (R_PPC64_REL24, /* type */ | |
| 431 | 0, /* rightshift */ | |
| 432 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 433 | 26, /* bitsize */ | |
| b34976b6 | 434 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
435 | 0, /* bitpos */ |
| 436 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 437 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 438 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 439 | FALSE, /* partial_inplace */ |
| d006db6c | 440 | 0, /* src_mask */ |
| f5e87a1d | 441 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 442 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
443 | |
| 444 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 445 | HOWTO (R_PPC64_REL14, /* type */ | |
| 446 | 0, /* rightshift */ | |
| 447 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 448 | 16, /* bitsize */ | |
| b34976b6 | 449 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
450 | 0, /* bitpos */ |
| 451 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 452 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 453 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 454 | FALSE, /* partial_inplace */ |
| d006db6c | 455 | 0, /* src_mask */ |
| f5e87a1d | 456 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 457 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
458 | |
| 459 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 460 | the branch is expected to be taken. The lower two bits must be | |
| 461 | zero. */ | |
| 462 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 463 | 0, /* rightshift */ | |
| 464 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 465 | 16, /* bitsize */ | |
| b34976b6 | 466 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
467 | 0, /* bitpos */ |
| 468 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 469 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 470 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 471 | FALSE, /* partial_inplace */ |
| d006db6c | 472 | 0, /* src_mask */ |
| f5e87a1d | 473 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 474 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
475 | |
| 476 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 477 | the branch is not expected to be taken. The lower two bits must | |
| 478 | be zero. */ | |
| 479 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 480 | 0, /* rightshift */ | |
| 481 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 482 | 16, /* bitsize */ | |
| b34976b6 | 483 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
484 | 0, /* bitpos */ |
| 485 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 486 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 487 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 488 | FALSE, /* partial_inplace */ |
| d006db6c | 489 | 0, /* src_mask */ |
| f5e87a1d | 490 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 491 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
492 | |
| 493 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 494 | symbol. */ | |
| 495 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 496 | 0, /* rightshift */ | |
| 497 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 498 | 16, /* bitsize */ | |
| b34976b6 | 499 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
500 | 0, /* bitpos */ |
| 501 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 502 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 503 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 504 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
505 | 0, /* src_mask */ |
| 506 | 0xffff, /* dst_mask */ | |
| b34976b6 | 507 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
508 | |
| 509 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 510 | the symbol. */ | |
| 511 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 512 | 0, /* rightshift */ | |
| 513 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 514 | 16, /* bitsize */ | |
| b34976b6 | 515 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
516 | 0, /* bitpos */ |
| 517 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 518 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 519 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 520 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
521 | 0, /* src_mask */ |
| 522 | 0xffff, /* dst_mask */ | |
| b34976b6 | 523 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
524 | |
| 525 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 526 | the symbol. */ | |
| 527 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 528 | 16, /* rightshift */ | |
| 529 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 530 | 16, /* bitsize */ | |
| b34976b6 | 531 | FALSE, /* pc_relative */ |
| 5bd4f169 | 532 | 0, /* bitpos */ |
| f9c6b907 | 533 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 534 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 535 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 536 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
537 | 0, /* src_mask */ |
| 538 | 0xffff, /* dst_mask */ | |
| b34976b6 | 539 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
540 | |
| 541 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 542 | the symbol. */ | |
| 543 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 544 | 16, /* rightshift */ | |
| 545 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 546 | 16, /* bitsize */ | |
| b34976b6 | 547 | FALSE, /* pc_relative */ |
| 5bd4f169 | 548 | 0, /* bitpos */ |
| f9c6b907 | 549 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 550 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 551 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 552 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
553 | 0, /* src_mask */ |
| 554 | 0xffff, /* dst_mask */ | |
| b34976b6 | 555 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
556 | |
| 557 | /* This is used only by the dynamic linker. The symbol should exist | |
| 558 | both in the object being run and in some shared library. The | |
| 559 | dynamic linker copies the data addressed by the symbol from the | |
| 560 | shared library into the object, because the object being | |
| 561 | run has to have the data at some particular address. */ | |
| 562 | HOWTO (R_PPC64_COPY, /* type */ | |
| 563 | 0, /* rightshift */ | |
| f5e87a1d AM |
564 | 0, /* this one is variable size */ |
| 565 | 0, /* bitsize */ | |
| b34976b6 | 566 | FALSE, /* pc_relative */ |
| 5bd4f169 | 567 | 0, /* bitpos */ |
| f5e87a1d AM |
568 | complain_overflow_dont, /* complain_on_overflow */ |
| 569 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 570 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 571 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
572 | 0, /* src_mask */ |
| 573 | 0, /* dst_mask */ | |
| b34976b6 | 574 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
575 | |
| 576 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 577 | entries. */ | |
| 578 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 579 | 0, /* rightshift */ | |
| 580 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 581 | 64, /* bitsize */ | |
| b34976b6 | 582 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
583 | 0, /* bitpos */ |
| 584 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 585 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 586 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 587 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 588 | 0, /* src_mask */ |
| f5e87a1d | 589 | ONES (64), /* dst_mask */ |
| b34976b6 | 590 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
591 | |
| 592 | /* Created by the link editor. Marks a procedure linkage table | |
| 593 | entry for a symbol. */ | |
| 594 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 595 | 0, /* rightshift */ | |
| 596 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 597 | 0, /* bitsize */ | |
| b34976b6 | 598 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
599 | 0, /* bitpos */ |
| 600 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 601 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 602 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 603 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
604 | 0, /* src_mask */ |
| 605 | 0, /* dst_mask */ | |
| b34976b6 | 606 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
607 | |
| 608 | /* Used only by the dynamic linker. When the object is run, this | |
| 609 | doubleword64 is set to the load address of the object, plus the | |
| 610 | addend. */ | |
| 611 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 612 | 0, /* rightshift */ | |
| 613 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 614 | 64, /* bitsize */ | |
| b34976b6 | 615 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
616 | 0, /* bitpos */ |
| 617 | complain_overflow_dont, /* complain_on_overflow */ | |
| 618 | bfd_elf_generic_reloc, /* special_function */ | |
| 619 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 620 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 621 | 0, /* src_mask */ |
| f5e87a1d | 622 | ONES (64), /* dst_mask */ |
| b34976b6 | 623 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
624 | |
| 625 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 626 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 627 | 0, /* rightshift */ | |
| 628 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 629 | 32, /* bitsize */ | |
| b34976b6 | 630 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
631 | 0, /* bitpos */ |
| 632 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 633 | bfd_elf_generic_reloc, /* special_function */ | |
| 634 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 635 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
636 | 0, /* src_mask */ |
| 637 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 638 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
639 | |
| 640 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 641 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 642 | 0, /* rightshift */ | |
| 643 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 644 | 16, /* bitsize */ | |
| b34976b6 | 645 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
646 | 0, /* bitpos */ |
| 647 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 648 | bfd_elf_generic_reloc, /* special_function */ | |
| 649 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 650 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
651 | 0, /* src_mask */ |
| 652 | 0xffff, /* dst_mask */ | |
| b34976b6 | 653 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
654 | |
| 655 | /* 32-bit PC relative. */ | |
| 656 | HOWTO (R_PPC64_REL32, /* type */ | |
| 657 | 0, /* rightshift */ | |
| 658 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 659 | 32, /* bitsize */ | |
| b34976b6 | 660 | TRUE, /* pc_relative */ |
| 5bd4f169 | 661 | 0, /* bitpos */ |
| 5bd4f169 AM |
662 | complain_overflow_signed, /* complain_on_overflow */ |
| 663 | bfd_elf_generic_reloc, /* special_function */ | |
| 664 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 665 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
666 | 0, /* src_mask */ |
| 667 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 668 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 669 | |
| 10ed1bba | 670 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
671 | HOWTO (R_PPC64_PLT32, /* type */ |
| 672 | 0, /* rightshift */ | |
| 673 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 674 | 32, /* bitsize */ | |
| b34976b6 | 675 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
676 | 0, /* bitpos */ |
| 677 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 678 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 679 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 680 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 681 | 0, /* src_mask */ |
| f5e87a1d | 682 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 683 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
684 | |
| 685 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 686 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 687 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 688 | 0, /* rightshift */ | |
| 689 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 690 | 32, /* bitsize */ | |
| b34976b6 | 691 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
692 | 0, /* bitpos */ |
| 693 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 694 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 695 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 696 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 697 | 0, /* src_mask */ |
| f5e87a1d | 698 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 699 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
700 | |
| 701 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 702 | the symbol. */ | |
| 703 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 704 | 0, /* rightshift */ | |
| 705 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 706 | 16, /* bitsize */ | |
| b34976b6 | 707 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
708 | 0, /* bitpos */ |
| 709 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 710 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 711 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 712 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
713 | 0, /* src_mask */ |
| 714 | 0xffff, /* dst_mask */ | |
| b34976b6 | 715 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
716 | |
| 717 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 718 | the symbol. */ | |
| 719 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 720 | 16, /* rightshift */ | |
| 721 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 722 | 16, /* bitsize */ | |
| b34976b6 | 723 | FALSE, /* pc_relative */ |
| 5bd4f169 | 724 | 0, /* bitpos */ |
| f9c6b907 | 725 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 726 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 727 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 728 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
729 | 0, /* src_mask */ |
| 730 | 0xffff, /* dst_mask */ | |
| b34976b6 | 731 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
732 | |
| 733 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 734 | the symbol. */ | |
| 735 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 736 | 16, /* rightshift */ | |
| 737 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 738 | 16, /* bitsize */ | |
| b34976b6 | 739 | FALSE, /* pc_relative */ |
| 5bd4f169 | 740 | 0, /* bitpos */ |
| f9c6b907 | 741 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 742 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 743 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 744 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
745 | 0, /* src_mask */ |
| 746 | 0xffff, /* dst_mask */ | |
| b34976b6 | 747 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 748 | |
| c061c2d8 | 749 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
750 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 751 | 0, /* rightshift */ | |
| c061c2d8 AM |
752 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 753 | 16, /* bitsize */ | |
| b34976b6 | 754 | FALSE, /* pc_relative */ |
| 5bd4f169 | 755 | 0, /* bitpos */ |
| b80eed39 | 756 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 757 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 758 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 759 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 760 | 0, /* src_mask */ |
| c061c2d8 | 761 | 0xffff, /* dst_mask */ |
| b34976b6 | 762 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 763 | |
| c061c2d8 | 764 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
765 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 766 | 0, /* rightshift */ | |
| 767 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 768 | 16, /* bitsize */ | |
| b34976b6 | 769 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
770 | 0, /* bitpos */ |
| 771 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 772 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 773 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 774 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
775 | 0, /* src_mask */ |
| 776 | 0xffff, /* dst_mask */ | |
| b34976b6 | 777 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
778 | |
| 779 | /* 16-bit upper half section relative relocation. */ | |
| 780 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 781 | 16, /* rightshift */ | |
| 782 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 783 | 16, /* bitsize */ | |
| b34976b6 | 784 | FALSE, /* pc_relative */ |
| 5bd4f169 | 785 | 0, /* bitpos */ |
| f9c6b907 | 786 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 787 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 788 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 789 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
790 | 0, /* src_mask */ |
| 791 | 0xffff, /* dst_mask */ | |
| b34976b6 | 792 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
793 | |
| 794 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 795 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 796 | 16, /* rightshift */ | |
| 797 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 798 | 16, /* bitsize */ | |
| b34976b6 | 799 | FALSE, /* pc_relative */ |
| 5bd4f169 | 800 | 0, /* bitpos */ |
| f9c6b907 | 801 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 802 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 803 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 804 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
805 | 0, /* src_mask */ |
| 806 | 0xffff, /* dst_mask */ | |
| b34976b6 | 807 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 808 | |
| 04c9666a AM |
809 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 810 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
811 | 2, /* rightshift */ |
| 812 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 813 | 30, /* bitsize */ | |
| b34976b6 | 814 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
815 | 0, /* bitpos */ |
| 816 | complain_overflow_dont, /* complain_on_overflow */ | |
| 817 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 818 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 819 | FALSE, /* partial_inplace */ |
| d006db6c | 820 | 0, /* src_mask */ |
| 5bd4f169 | 821 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 822 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
823 | |
| 824 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 825 | ||
| 826 | /* A standard 64-bit relocation. */ | |
| 827 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 828 | 0, /* rightshift */ | |
| 829 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 830 | 64, /* bitsize */ | |
| b34976b6 | 831 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
832 | 0, /* bitpos */ |
| 833 | complain_overflow_dont, /* complain_on_overflow */ | |
| 834 | bfd_elf_generic_reloc, /* special_function */ | |
| 835 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 836 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 837 | 0, /* src_mask */ |
| f5e87a1d | 838 | ONES (64), /* dst_mask */ |
| b34976b6 | 839 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
840 | |
| 841 | /* The bits 32-47 of an address. */ | |
| 842 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 843 | 32, /* rightshift */ | |
| 844 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 845 | 16, /* bitsize */ | |
| b34976b6 | 846 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
847 | 0, /* bitpos */ |
| 848 | complain_overflow_dont, /* complain_on_overflow */ | |
| 849 | bfd_elf_generic_reloc, /* special_function */ | |
| 850 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 851 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
852 | 0, /* src_mask */ |
| 853 | 0xffff, /* dst_mask */ | |
| b34976b6 | 854 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
855 | |
| 856 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 857 | 16 bits, treated as a signed number, is negative. */ | |
| 858 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 859 | 32, /* rightshift */ | |
| 860 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 861 | 16, /* bitsize */ | |
| b34976b6 | 862 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
863 | 0, /* bitpos */ |
| 864 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 865 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 866 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 867 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
868 | 0, /* src_mask */ |
| 869 | 0xffff, /* dst_mask */ | |
| b34976b6 | 870 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
871 | |
| 872 | /* The bits 48-63 of an address. */ | |
| 873 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 874 | 48, /* rightshift */ | |
| 875 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 876 | 16, /* bitsize */ | |
| b34976b6 | 877 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
878 | 0, /* bitpos */ |
| 879 | complain_overflow_dont, /* complain_on_overflow */ | |
| 880 | bfd_elf_generic_reloc, /* special_function */ | |
| 881 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 882 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
883 | 0, /* src_mask */ |
| 884 | 0xffff, /* dst_mask */ | |
| b34976b6 | 885 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
886 | |
| 887 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 888 | 16 bits, treated as a signed number, is negative. */ | |
| 889 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 890 | 48, /* rightshift */ | |
| 891 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 892 | 16, /* bitsize */ | |
| b34976b6 | 893 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
894 | 0, /* bitpos */ |
| 895 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 896 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 897 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 898 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
899 | 0, /* src_mask */ |
| 900 | 0xffff, /* dst_mask */ | |
| b34976b6 | 901 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
902 | |
| 903 | /* Like ADDR64, but may be unaligned. */ | |
| 904 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 905 | 0, /* rightshift */ | |
| 906 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 907 | 64, /* bitsize */ | |
| b34976b6 | 908 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
909 | 0, /* bitpos */ |
| 910 | complain_overflow_dont, /* complain_on_overflow */ | |
| 911 | bfd_elf_generic_reloc, /* special_function */ | |
| 912 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 913 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 914 | 0, /* src_mask */ |
| f5e87a1d | 915 | ONES (64), /* dst_mask */ |
| b34976b6 | 916 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
917 | |
| 918 | /* 64-bit relative relocation. */ | |
| 919 | HOWTO (R_PPC64_REL64, /* type */ | |
| 920 | 0, /* rightshift */ | |
| 921 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 922 | 64, /* bitsize */ | |
| b34976b6 | 923 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
924 | 0, /* bitpos */ |
| 925 | complain_overflow_dont, /* complain_on_overflow */ | |
| 926 | bfd_elf_generic_reloc, /* special_function */ | |
| 927 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 928 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 929 | 0, /* src_mask */ |
| f5e87a1d | 930 | ONES (64), /* dst_mask */ |
| b34976b6 | 931 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 932 | |
| cedb70c5 | 933 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
934 | HOWTO (R_PPC64_PLT64, /* type */ |
| 935 | 0, /* rightshift */ | |
| 936 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 937 | 64, /* bitsize */ | |
| b34976b6 | 938 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
939 | 0, /* bitpos */ |
| 940 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 941 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 942 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 943 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 944 | 0, /* src_mask */ |
| f5e87a1d | 945 | ONES (64), /* dst_mask */ |
| b34976b6 | 946 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
947 | |
| 948 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 949 | table. */ | |
| 950 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 951 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 952 | 0, /* rightshift */ | |
| 953 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 954 | 64, /* bitsize */ | |
| b34976b6 | 955 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
956 | 0, /* bitpos */ |
| 957 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 958 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 959 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 960 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 961 | 0, /* src_mask */ |
| f5e87a1d | 962 | ONES (64), /* dst_mask */ |
| b34976b6 | 963 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
964 | |
| 965 | /* 16 bit TOC-relative relocation. */ | |
| 966 | ||
| 967 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 968 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 969 | 0, /* rightshift */ | |
| 970 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 971 | 16, /* bitsize */ | |
| b34976b6 | 972 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
973 | 0, /* bitpos */ |
| 974 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 975 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 976 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 977 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
978 | 0, /* src_mask */ |
| 979 | 0xffff, /* dst_mask */ | |
| b34976b6 | 980 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
981 | |
| 982 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 983 | ||
| 984 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 985 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 986 | 0, /* rightshift */ | |
| 987 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 988 | 16, /* bitsize */ | |
| b34976b6 | 989 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
990 | 0, /* bitpos */ |
| 991 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 992 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 993 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 994 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
995 | 0, /* src_mask */ |
| 996 | 0xffff, /* dst_mask */ | |
| b34976b6 | 997 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
998 | |
| 999 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1000 | ||
| 1001 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1002 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1003 | 16, /* rightshift */ | |
| 1004 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1005 | 16, /* bitsize */ | |
| b34976b6 | 1006 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1007 | 0, /* bitpos */ |
| f9c6b907 | 1008 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1009 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1010 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1011 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1012 | 0, /* src_mask */ |
| 1013 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1014 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1015 | |
| 1016 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1017 | contents of the low 16 bits, treated as a signed number, is | |
| 1018 | negative. */ | |
| 1019 | ||
| 1020 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1021 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1022 | 16, /* rightshift */ | |
| 1023 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1024 | 16, /* bitsize */ | |
| b34976b6 | 1025 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1026 | 0, /* bitpos */ |
| f9c6b907 | 1027 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1028 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1029 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1030 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1031 | 0, /* src_mask */ |
| 1032 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1033 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1034 | |
| 1035 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1036 | ||
| 1037 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1038 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1039 | 0, /* rightshift */ | |
| 1040 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1041 | 64, /* bitsize */ | |
| b34976b6 | 1042 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1043 | 0, /* bitpos */ |
| b80eed39 | 1044 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1045 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1046 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1047 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1048 | 0, /* src_mask */ |
| f5e87a1d | 1049 | ONES (64), /* dst_mask */ |
| b34976b6 | 1050 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1051 | |
| 1052 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1053 | value to relocate may (!) refer to a PLT entry which the link | |
| 1054 | editor (a) may replace with the symbol value. If the link editor | |
| 1055 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1056 | entry and store the address to the new PLT entry in the GOT. | |
| 1057 | This permits lazy resolution of function symbols at run time. | |
| 1058 | The link editor may also skip all of this and just (c) emit a | |
| 1059 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1060 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1061 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1062 | 0, /* rightshift */ | |
| 1063 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1064 | 16, /* bitsize */ | |
| b34976b6 | 1065 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1066 | 0, /* bitpos */ |
| 1067 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1068 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1069 | "R_PPC64_PLTGOT16", /* name */ |
| 1070 | FALSE, /* partial_inplace */ | |
| 1071 | 0, /* src_mask */ | |
| 1072 | 0xffff, /* dst_mask */ | |
| 1073 | FALSE), /* pcrel_offset */ | |
| 1074 | ||
| 1075 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1076 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1077 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1078 | 0, /* rightshift */ | |
| 1079 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1080 | 16, /* bitsize */ | |
| 1081 | FALSE, /* pc_relative */ | |
| 1082 | 0, /* bitpos */ | |
| 1083 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1084 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1085 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1086 | FALSE, /* partial_inplace */ | |
| 1087 | 0, /* src_mask */ | |
| 1088 | 0xffff, /* dst_mask */ | |
| 1089 | FALSE), /* pcrel_offset */ | |
| 1090 | ||
| 1091 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1092 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1093 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1094 | 16, /* rightshift */ | |
| 1095 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1096 | 16, /* bitsize */ | |
| 1097 | FALSE, /* pc_relative */ | |
| 1098 | 0, /* bitpos */ | |
| f9c6b907 | 1099 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1100 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1101 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1102 | FALSE, /* partial_inplace */ | |
| 1103 | 0, /* src_mask */ | |
| 1104 | 0xffff, /* dst_mask */ | |
| 1105 | FALSE), /* pcrel_offset */ | |
| 1106 | ||
| 1107 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1108 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1109 | is negative. */ | |
| 1110 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1111 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1112 | 16, /* rightshift */ | |
| 1113 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1114 | 16, /* bitsize */ | |
| 1115 | FALSE, /* pc_relative */ | |
| 1116 | 0, /* bitpos */ | |
| f9c6b907 | 1117 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1118 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1119 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1120 | FALSE, /* partial_inplace */ | |
| 1121 | 0, /* src_mask */ | |
| 1122 | 0xffff, /* dst_mask */ | |
| 1123 | FALSE), /* pcrel_offset */ | |
| 1124 | ||
| 1125 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1126 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1127 | 0, /* rightshift */ | |
| 1128 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1129 | 16, /* bitsize */ | |
| 1130 | FALSE, /* pc_relative */ | |
| 1131 | 0, /* bitpos */ | |
| b80eed39 | 1132 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1133 | bfd_elf_generic_reloc, /* special_function */ |
| 1134 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1135 | FALSE, /* partial_inplace */ | |
| 1136 | 0, /* src_mask */ | |
| 1137 | 0xfffc, /* dst_mask */ | |
| 1138 | FALSE), /* pcrel_offset */ | |
| 1139 | ||
| 1140 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1141 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1142 | 0, /* rightshift */ | |
| 1143 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1144 | 16, /* bitsize */ | |
| 1145 | FALSE, /* pc_relative */ | |
| 1146 | 0, /* bitpos */ | |
| 1147 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1148 | bfd_elf_generic_reloc, /* special_function */ | |
| 1149 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1150 | FALSE, /* partial_inplace */ | |
| 1151 | 0, /* src_mask */ | |
| 1152 | 0xfffc, /* dst_mask */ | |
| 1153 | FALSE), /* pcrel_offset */ | |
| 1154 | ||
| 1155 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1156 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1157 | 0, /* rightshift */ | |
| 1158 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1159 | 16, /* bitsize */ | |
| 1160 | FALSE, /* pc_relative */ | |
| 1161 | 0, /* bitpos */ | |
| 1162 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1163 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1164 | "R_PPC64_GOT16_DS", /* name */ | |
| 1165 | FALSE, /* partial_inplace */ | |
| 1166 | 0, /* src_mask */ | |
| 1167 | 0xfffc, /* dst_mask */ | |
| 1168 | FALSE), /* pcrel_offset */ | |
| 1169 | ||
| 1170 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1171 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1172 | 0, /* rightshift */ | |
| 1173 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1174 | 16, /* bitsize */ | |
| 1175 | FALSE, /* pc_relative */ | |
| 1176 | 0, /* bitpos */ | |
| 1177 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1178 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1179 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1180 | FALSE, /* partial_inplace */ | |
| 1181 | 0, /* src_mask */ | |
| 1182 | 0xfffc, /* dst_mask */ | |
| 1183 | FALSE), /* pcrel_offset */ | |
| 1184 | ||
| 1185 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1186 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1187 | 0, /* rightshift */ | |
| 1188 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1189 | 16, /* bitsize */ | |
| 1190 | FALSE, /* pc_relative */ | |
| 1191 | 0, /* bitpos */ | |
| 1192 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1193 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1194 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1195 | FALSE, /* partial_inplace */ | |
| 1196 | 0, /* src_mask */ | |
| 1197 | 0xfffc, /* dst_mask */ | |
| 1198 | FALSE), /* pcrel_offset */ | |
| 1199 | ||
| 1200 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1201 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1202 | 0, /* rightshift */ | |
| 1203 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1204 | 16, /* bitsize */ | |
| 1205 | FALSE, /* pc_relative */ | |
| 1206 | 0, /* bitpos */ | |
| b80eed39 | 1207 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1208 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1209 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1210 | FALSE, /* partial_inplace */ | |
| 1211 | 0, /* src_mask */ | |
| 1212 | 0xfffc, /* dst_mask */ | |
| 1213 | FALSE), /* pcrel_offset */ | |
| 1214 | ||
| 1215 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1216 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1217 | 0, /* rightshift */ | |
| 1218 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1219 | 16, /* bitsize */ | |
| 1220 | FALSE, /* pc_relative */ | |
| 1221 | 0, /* bitpos */ | |
| 1222 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1223 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1224 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1225 | FALSE, /* partial_inplace */ | |
| 1226 | 0, /* src_mask */ | |
| 1227 | 0xfffc, /* dst_mask */ | |
| 1228 | FALSE), /* pcrel_offset */ | |
| 1229 | ||
| 1230 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1231 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1232 | 0, /* rightshift */ | |
| 1233 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1234 | 16, /* bitsize */ | |
| 1235 | FALSE, /* pc_relative */ | |
| 1236 | 0, /* bitpos */ | |
| 1237 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1238 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1239 | "R_PPC64_TOC16_DS", /* name */ | |
| 1240 | FALSE, /* partial_inplace */ | |
| 1241 | 0, /* src_mask */ | |
| 1242 | 0xfffc, /* dst_mask */ | |
| 1243 | FALSE), /* pcrel_offset */ | |
| 1244 | ||
| 1245 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1246 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1247 | 0, /* rightshift */ | |
| 1248 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1249 | 16, /* bitsize */ | |
| 1250 | FALSE, /* pc_relative */ | |
| 1251 | 0, /* bitpos */ | |
| 1252 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1253 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1254 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1255 | FALSE, /* partial_inplace */ | |
| 1256 | 0, /* src_mask */ | |
| 1257 | 0xfffc, /* dst_mask */ | |
| 1258 | FALSE), /* pcrel_offset */ | |
| 1259 | ||
| 1260 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1261 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1262 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1263 | 0, /* rightshift */ |
| 1264 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1265 | 16, /* bitsize */ | |
| 1266 | FALSE, /* pc_relative */ | |
| 1267 | 0, /* bitpos */ | |
| 1268 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1269 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1270 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1271 | FALSE, /* partial_inplace */ | |
| 1272 | 0, /* src_mask */ | |
| 1273 | 0xfffc, /* dst_mask */ | |
| 1274 | FALSE), /* pcrel_offset */ | |
| 1275 | ||
| 1276 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1277 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1278 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1279 | 0, /* rightshift */ | |
| 1280 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1281 | 16, /* bitsize */ | |
| 1282 | FALSE, /* pc_relative */ | |
| 1283 | 0, /* bitpos */ | |
| 1284 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1285 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1286 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1287 | FALSE, /* partial_inplace */ | |
| 1288 | 0, /* src_mask */ | |
| 1289 | 0xfffc, /* dst_mask */ | |
| 1290 | FALSE), /* pcrel_offset */ | |
| 1291 | ||
| 727fc41e | 1292 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1293 | HOWTO (R_PPC64_TLS, |
| 1294 | 0, /* rightshift */ | |
| 1295 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1296 | 32, /* bitsize */ | |
| 1297 | FALSE, /* pc_relative */ | |
| 1298 | 0, /* bitpos */ | |
| 1299 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1300 | bfd_elf_generic_reloc, /* special_function */ | |
| 1301 | "R_PPC64_TLS", /* name */ | |
| 1302 | FALSE, /* partial_inplace */ | |
| 1303 | 0, /* src_mask */ | |
| 1304 | 0, /* dst_mask */ | |
| 1305 | FALSE), /* pcrel_offset */ | |
| 1306 | ||
| 727fc41e AM |
1307 | HOWTO (R_PPC64_TLSGD, |
| 1308 | 0, /* rightshift */ | |
| 1309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1310 | 32, /* bitsize */ | |
| 1311 | FALSE, /* pc_relative */ | |
| 1312 | 0, /* bitpos */ | |
| 1313 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1314 | bfd_elf_generic_reloc, /* special_function */ | |
| 1315 | "R_PPC64_TLSGD", /* name */ | |
| 1316 | FALSE, /* partial_inplace */ | |
| 1317 | 0, /* src_mask */ | |
| 1318 | 0, /* dst_mask */ | |
| 1319 | FALSE), /* pcrel_offset */ | |
| 1320 | ||
| 1321 | HOWTO (R_PPC64_TLSLD, | |
| 1322 | 0, /* rightshift */ | |
| 1323 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1324 | 32, /* bitsize */ | |
| 1325 | FALSE, /* pc_relative */ | |
| 1326 | 0, /* bitpos */ | |
| 1327 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1328 | bfd_elf_generic_reloc, /* special_function */ | |
| 1329 | "R_PPC64_TLSLD", /* name */ | |
| 1330 | FALSE, /* partial_inplace */ | |
| 1331 | 0, /* src_mask */ | |
| 1332 | 0, /* dst_mask */ | |
| 1333 | FALSE), /* pcrel_offset */ | |
| 1334 | ||
| 3b421ab3 AM |
1335 | HOWTO (R_PPC64_TOCSAVE, |
| 1336 | 0, /* rightshift */ | |
| 1337 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1338 | 32, /* bitsize */ | |
| 1339 | FALSE, /* pc_relative */ | |
| 1340 | 0, /* bitpos */ | |
| 1341 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1342 | bfd_elf_generic_reloc, /* special_function */ | |
| 1343 | "R_PPC64_TOCSAVE", /* name */ | |
| 1344 | FALSE, /* partial_inplace */ | |
| 1345 | 0, /* src_mask */ | |
| 1346 | 0, /* dst_mask */ | |
| 1347 | FALSE), /* pcrel_offset */ | |
| 1348 | ||
| 411e1bfb AM |
1349 | /* Computes the load module index of the load module that contains the |
| 1350 | definition of its TLS sym. */ | |
| 1351 | HOWTO (R_PPC64_DTPMOD64, | |
| 1352 | 0, /* rightshift */ | |
| 1353 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1354 | 64, /* bitsize */ | |
| 1355 | FALSE, /* pc_relative */ | |
| 1356 | 0, /* bitpos */ | |
| 1357 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1358 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1359 | "R_PPC64_DTPMOD64", /* name */ | |
| 1360 | FALSE, /* partial_inplace */ | |
| 1361 | 0, /* src_mask */ | |
| 1362 | ONES (64), /* dst_mask */ | |
| 1363 | FALSE), /* pcrel_offset */ | |
| 1364 | ||
| 1365 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1366 | of sym+add and the base address of the thread-local storage block that | |
| 1367 | contains the definition of sym, minus 0x8000. */ | |
| 1368 | HOWTO (R_PPC64_DTPREL64, | |
| 1369 | 0, /* rightshift */ | |
| 1370 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1371 | 64, /* bitsize */ | |
| 1372 | FALSE, /* pc_relative */ | |
| 1373 | 0, /* bitpos */ | |
| 1374 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1375 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1376 | "R_PPC64_DTPREL64", /* name */ | |
| 1377 | FALSE, /* partial_inplace */ | |
| 1378 | 0, /* src_mask */ | |
| 1379 | ONES (64), /* dst_mask */ | |
| 1380 | FALSE), /* pcrel_offset */ | |
| 1381 | ||
| 1382 | /* A 16 bit dtprel reloc. */ | |
| 1383 | HOWTO (R_PPC64_DTPREL16, | |
| 1384 | 0, /* rightshift */ | |
| 1385 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1386 | 16, /* bitsize */ | |
| 1387 | FALSE, /* pc_relative */ | |
| 1388 | 0, /* bitpos */ | |
| 1389 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1390 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1391 | "R_PPC64_DTPREL16", /* name */ | |
| 1392 | FALSE, /* partial_inplace */ | |
| 1393 | 0, /* src_mask */ | |
| 1394 | 0xffff, /* dst_mask */ | |
| 1395 | FALSE), /* pcrel_offset */ | |
| 1396 | ||
| 1397 | /* Like DTPREL16, but no overflow. */ | |
| 1398 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1399 | 0, /* rightshift */ | |
| 1400 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1401 | 16, /* bitsize */ | |
| 1402 | FALSE, /* pc_relative */ | |
| 1403 | 0, /* bitpos */ | |
| 1404 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1405 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1406 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1407 | FALSE, /* partial_inplace */ | |
| 1408 | 0, /* src_mask */ | |
| 1409 | 0xffff, /* dst_mask */ | |
| 1410 | FALSE), /* pcrel_offset */ | |
| 1411 | ||
| 1412 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1413 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1414 | 16, /* rightshift */ | |
| 1415 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1416 | 16, /* bitsize */ | |
| 1417 | FALSE, /* pc_relative */ | |
| 1418 | 0, /* bitpos */ | |
| f9c6b907 | 1419 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1420 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1421 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1422 | FALSE, /* partial_inplace */ | |
| 1423 | 0, /* src_mask */ | |
| 1424 | 0xffff, /* dst_mask */ | |
| 1425 | FALSE), /* pcrel_offset */ | |
| 1426 | ||
| 1427 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1428 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1429 | 16, /* rightshift */ | |
| 1430 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1431 | 16, /* bitsize */ | |
| 1432 | FALSE, /* pc_relative */ | |
| 1433 | 0, /* bitpos */ | |
| f9c6b907 | 1434 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1435 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1436 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1437 | FALSE, /* partial_inplace */ | |
| 1438 | 0, /* src_mask */ | |
| 1439 | 0xffff, /* dst_mask */ | |
| 1440 | FALSE), /* pcrel_offset */ | |
| 1441 | ||
| 1442 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1443 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1444 | 32, /* rightshift */ | |
| 1445 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1446 | 16, /* bitsize */ | |
| 1447 | FALSE, /* pc_relative */ | |
| 1448 | 0, /* bitpos */ | |
| 1449 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1450 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1451 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1452 | FALSE, /* partial_inplace */ | |
| 1453 | 0, /* src_mask */ | |
| 1454 | 0xffff, /* dst_mask */ | |
| 1455 | FALSE), /* pcrel_offset */ | |
| 1456 | ||
| 1457 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1458 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1459 | 32, /* rightshift */ | |
| 1460 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1461 | 16, /* bitsize */ | |
| 1462 | FALSE, /* pc_relative */ | |
| 1463 | 0, /* bitpos */ | |
| 1464 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1465 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1466 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1467 | FALSE, /* partial_inplace */ | |
| 1468 | 0, /* src_mask */ | |
| 1469 | 0xffff, /* dst_mask */ | |
| 1470 | FALSE), /* pcrel_offset */ | |
| 1471 | ||
| 1472 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1473 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1474 | 48, /* rightshift */ | |
| 1475 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1476 | 16, /* bitsize */ | |
| 1477 | FALSE, /* pc_relative */ | |
| 1478 | 0, /* bitpos */ | |
| 1479 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1480 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1481 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1482 | FALSE, /* partial_inplace */ | |
| 1483 | 0, /* src_mask */ | |
| 1484 | 0xffff, /* dst_mask */ | |
| 1485 | FALSE), /* pcrel_offset */ | |
| 1486 | ||
| 1487 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1488 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1489 | 48, /* rightshift */ | |
| 1490 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1491 | 16, /* bitsize */ | |
| 1492 | FALSE, /* pc_relative */ | |
| 1493 | 0, /* bitpos */ | |
| 1494 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1495 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1496 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1497 | FALSE, /* partial_inplace */ | |
| 1498 | 0, /* src_mask */ | |
| 1499 | 0xffff, /* dst_mask */ | |
| 1500 | FALSE), /* pcrel_offset */ | |
| 1501 | ||
| 1502 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1503 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1504 | 0, /* rightshift */ | |
| 1505 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1506 | 16, /* bitsize */ | |
| 1507 | FALSE, /* pc_relative */ | |
| 1508 | 0, /* bitpos */ | |
| 1509 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1510 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1511 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1512 | FALSE, /* partial_inplace */ | |
| 1513 | 0, /* src_mask */ | |
| 1514 | 0xfffc, /* dst_mask */ | |
| 1515 | FALSE), /* pcrel_offset */ | |
| 1516 | ||
| 1517 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1518 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1519 | 0, /* rightshift */ | |
| 1520 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1521 | 16, /* bitsize */ | |
| 1522 | FALSE, /* pc_relative */ | |
| 1523 | 0, /* bitpos */ | |
| 1524 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1525 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1526 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1527 | FALSE, /* partial_inplace */ | |
| 1528 | 0, /* src_mask */ | |
| 1529 | 0xfffc, /* dst_mask */ | |
| 1530 | FALSE), /* pcrel_offset */ | |
| 1531 | ||
| 1532 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1533 | sym+add and the value of the thread pointer (r13). */ | |
| 1534 | HOWTO (R_PPC64_TPREL64, | |
| 1535 | 0, /* rightshift */ | |
| 1536 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1537 | 64, /* bitsize */ | |
| 1538 | FALSE, /* pc_relative */ | |
| 1539 | 0, /* bitpos */ | |
| 1540 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1541 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1542 | "R_PPC64_TPREL64", /* name */ | |
| 1543 | FALSE, /* partial_inplace */ | |
| 1544 | 0, /* src_mask */ | |
| 1545 | ONES (64), /* dst_mask */ | |
| 1546 | FALSE), /* pcrel_offset */ | |
| 1547 | ||
| 1548 | /* A 16 bit tprel reloc. */ | |
| 1549 | HOWTO (R_PPC64_TPREL16, | |
| 1550 | 0, /* rightshift */ | |
| 1551 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1552 | 16, /* bitsize */ | |
| 1553 | FALSE, /* pc_relative */ | |
| 1554 | 0, /* bitpos */ | |
| 1555 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1556 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1557 | "R_PPC64_TPREL16", /* name */ | |
| 1558 | FALSE, /* partial_inplace */ | |
| 1559 | 0, /* src_mask */ | |
| 1560 | 0xffff, /* dst_mask */ | |
| 1561 | FALSE), /* pcrel_offset */ | |
| 1562 | ||
| 1563 | /* Like TPREL16, but no overflow. */ | |
| 1564 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1565 | 0, /* rightshift */ | |
| 1566 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1567 | 16, /* bitsize */ | |
| 1568 | FALSE, /* pc_relative */ | |
| 1569 | 0, /* bitpos */ | |
| 1570 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1571 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1572 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1573 | FALSE, /* partial_inplace */ | |
| 1574 | 0, /* src_mask */ | |
| 1575 | 0xffff, /* dst_mask */ | |
| 1576 | FALSE), /* pcrel_offset */ | |
| 1577 | ||
| 1578 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1579 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1580 | 16, /* rightshift */ | |
| 1581 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1582 | 16, /* bitsize */ | |
| 1583 | FALSE, /* pc_relative */ | |
| 1584 | 0, /* bitpos */ | |
| f9c6b907 | 1585 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1586 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1587 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1588 | FALSE, /* partial_inplace */ | |
| 1589 | 0, /* src_mask */ | |
| 1590 | 0xffff, /* dst_mask */ | |
| 1591 | FALSE), /* pcrel_offset */ | |
| 1592 | ||
| 1593 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1594 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1595 | 16, /* rightshift */ | |
| 1596 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1597 | 16, /* bitsize */ | |
| 1598 | FALSE, /* pc_relative */ | |
| 1599 | 0, /* bitpos */ | |
| f9c6b907 | 1600 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1601 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1602 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1603 | FALSE, /* partial_inplace */ | |
| 1604 | 0, /* src_mask */ | |
| 1605 | 0xffff, /* dst_mask */ | |
| 1606 | FALSE), /* pcrel_offset */ | |
| 1607 | ||
| 1608 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1609 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1610 | 32, /* rightshift */ | |
| 1611 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1612 | 16, /* bitsize */ | |
| 1613 | FALSE, /* pc_relative */ | |
| 1614 | 0, /* bitpos */ | |
| 1615 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1616 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1617 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1618 | FALSE, /* partial_inplace */ | |
| 1619 | 0, /* src_mask */ | |
| 1620 | 0xffff, /* dst_mask */ | |
| 1621 | FALSE), /* pcrel_offset */ | |
| 1622 | ||
| 1623 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1624 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1625 | 32, /* rightshift */ | |
| 1626 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1627 | 16, /* bitsize */ | |
| 1628 | FALSE, /* pc_relative */ | |
| 1629 | 0, /* bitpos */ | |
| 1630 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1631 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1632 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1633 | FALSE, /* partial_inplace */ | |
| 1634 | 0, /* src_mask */ | |
| 1635 | 0xffff, /* dst_mask */ | |
| 1636 | FALSE), /* pcrel_offset */ | |
| 1637 | ||
| 1638 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1639 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1640 | 48, /* rightshift */ | |
| 1641 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1642 | 16, /* bitsize */ | |
| 1643 | FALSE, /* pc_relative */ | |
| 1644 | 0, /* bitpos */ | |
| 1645 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1646 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1647 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1648 | FALSE, /* partial_inplace */ | |
| 1649 | 0, /* src_mask */ | |
| 1650 | 0xffff, /* dst_mask */ | |
| 1651 | FALSE), /* pcrel_offset */ | |
| 1652 | ||
| 1653 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1654 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1655 | 48, /* rightshift */ | |
| 1656 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1657 | 16, /* bitsize */ | |
| 1658 | FALSE, /* pc_relative */ | |
| 1659 | 0, /* bitpos */ | |
| 1660 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1661 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1662 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1663 | FALSE, /* partial_inplace */ | |
| 1664 | 0, /* src_mask */ | |
| 1665 | 0xffff, /* dst_mask */ | |
| 1666 | FALSE), /* pcrel_offset */ | |
| 1667 | ||
| 1668 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1669 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1670 | 0, /* rightshift */ | |
| 1671 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1672 | 16, /* bitsize */ | |
| 1673 | FALSE, /* pc_relative */ | |
| 1674 | 0, /* bitpos */ | |
| 1675 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1676 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1677 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1678 | FALSE, /* partial_inplace */ | |
| 1679 | 0, /* src_mask */ | |
| 1680 | 0xfffc, /* dst_mask */ | |
| 1681 | FALSE), /* pcrel_offset */ | |
| 1682 | ||
| 1683 | /* Like TPREL16_DS, but no overflow. */ | |
| 1684 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1685 | 0, /* rightshift */ | |
| 1686 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1687 | 16, /* bitsize */ | |
| 1688 | FALSE, /* pc_relative */ | |
| 1689 | 0, /* bitpos */ | |
| 1690 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1691 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1692 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1693 | FALSE, /* partial_inplace */ | |
| 1694 | 0, /* src_mask */ | |
| 1695 | 0xfffc, /* dst_mask */ | |
| 1696 | FALSE), /* pcrel_offset */ | |
| 1697 | ||
| 1698 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1699 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1700 | to the first entry relative to the TOC base (r2). */ | |
| 1701 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1702 | 0, /* rightshift */ | |
| 1703 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1704 | 16, /* bitsize */ | |
| 1705 | FALSE, /* pc_relative */ | |
| 1706 | 0, /* bitpos */ | |
| 1707 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1708 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1709 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1710 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1711 | 0, /* src_mask */ |
| 1712 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1713 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1714 | |
| 411e1bfb AM |
1715 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1716 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1717 | 0, /* rightshift */ |
| 1718 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1719 | 16, /* bitsize */ | |
| b34976b6 | 1720 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1721 | 0, /* bitpos */ |
| 1722 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1723 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1724 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1725 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1726 | 0, /* src_mask */ |
| 1727 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1728 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1729 | |
| 411e1bfb AM |
1730 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1731 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1732 | 16, /* rightshift */ |
| 1733 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1734 | 16, /* bitsize */ | |
| b34976b6 | 1735 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1736 | 0, /* bitpos */ |
| f9c6b907 | 1737 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1738 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1739 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1740 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1741 | 0, /* src_mask */ |
| 1742 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1743 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1744 | |
| 411e1bfb AM |
1745 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1746 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1747 | 16, /* rightshift */ |
| 1748 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1749 | 16, /* bitsize */ | |
| b34976b6 | 1750 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1751 | 0, /* bitpos */ |
| f9c6b907 | 1752 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1753 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1754 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1755 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1756 | 0, /* src_mask */ |
| 1757 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1758 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1759 | |
| 411e1bfb AM |
1760 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1761 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1762 | first entry relative to the TOC base (r2). */ | |
| 1763 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1764 | 0, /* rightshift */ |
| 1765 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1766 | 16, /* bitsize */ | |
| b34976b6 | 1767 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1768 | 0, /* bitpos */ |
| 411e1bfb AM |
1769 | complain_overflow_signed, /* complain_on_overflow */ |
| 1770 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1771 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1772 | FALSE, /* partial_inplace */ |
| d006db6c | 1773 | 0, /* src_mask */ |
| 411e1bfb | 1774 | 0xffff, /* dst_mask */ |
| b34976b6 | 1775 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1776 | |
| 411e1bfb AM |
1777 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1778 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1779 | 0, /* rightshift */ |
| 1780 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1781 | 16, /* bitsize */ | |
| b34976b6 | 1782 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1783 | 0, /* bitpos */ |
| 411e1bfb AM |
1784 | complain_overflow_dont, /* complain_on_overflow */ |
| 1785 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1786 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1787 | FALSE, /* partial_inplace */ |
| d006db6c | 1788 | 0, /* src_mask */ |
| 411e1bfb | 1789 | 0xffff, /* dst_mask */ |
| b34976b6 | 1790 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1791 | |
| 411e1bfb AM |
1792 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1793 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1794 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1795 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1796 | 16, /* bitsize */ | |
| b34976b6 | 1797 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1798 | 0, /* bitpos */ |
| f9c6b907 | 1799 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1800 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1801 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1802 | FALSE, /* partial_inplace */ |
| d006db6c | 1803 | 0, /* src_mask */ |
| 411e1bfb | 1804 | 0xffff, /* dst_mask */ |
| b34976b6 | 1805 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1806 | |
| 411e1bfb AM |
1807 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1808 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1809 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1810 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1811 | 16, /* bitsize */ | |
| b34976b6 | 1812 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1813 | 0, /* bitpos */ |
| f9c6b907 | 1814 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1815 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1816 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1817 | FALSE, /* partial_inplace */ |
| d006db6c | 1818 | 0, /* src_mask */ |
| 411e1bfb | 1819 | 0xffff, /* dst_mask */ |
| b34976b6 | 1820 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1821 | |
| 411e1bfb AM |
1822 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1823 | the offset to the entry relative to the TOC base (r2). */ | |
| 1824 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1825 | 0, /* rightshift */ |
| 1826 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1827 | 16, /* bitsize */ | |
| b34976b6 | 1828 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1829 | 0, /* bitpos */ |
| 411e1bfb | 1830 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1831 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1832 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1833 | FALSE, /* partial_inplace */ |
| d006db6c | 1834 | 0, /* src_mask */ |
| 5bd4f169 | 1835 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1836 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1837 | |
| 411e1bfb AM |
1838 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1839 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1840 | 0, /* rightshift */ |
| c061c2d8 AM |
1841 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1842 | 16, /* bitsize */ | |
| b34976b6 | 1843 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1844 | 0, /* bitpos */ |
| 411e1bfb AM |
1845 | complain_overflow_dont, /* complain_on_overflow */ |
| 1846 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1847 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1848 | FALSE, /* partial_inplace */ |
| d006db6c | 1849 | 0, /* src_mask */ |
| c061c2d8 | 1850 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1851 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1852 | |
| 411e1bfb AM |
1853 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1854 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1855 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1856 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1857 | 16, /* bitsize */ | |
| b34976b6 | 1858 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1859 | 0, /* bitpos */ |
| f9c6b907 | 1860 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1861 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1862 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1863 | FALSE, /* partial_inplace */ |
| d006db6c | 1864 | 0, /* src_mask */ |
| 411e1bfb | 1865 | 0xffff, /* dst_mask */ |
| b34976b6 | 1866 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1867 | |
| 411e1bfb AM |
1868 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1869 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1870 | 16, /* rightshift */ | |
| 1871 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1872 | 16, /* bitsize */ | |
| 1873 | FALSE, /* pc_relative */ | |
| 1874 | 0, /* bitpos */ | |
| f9c6b907 | 1875 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1876 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1877 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1878 | FALSE, /* partial_inplace */ | |
| 1879 | 0, /* src_mask */ | |
| 1880 | 0xffff, /* dst_mask */ | |
| 1881 | FALSE), /* pcrel_offset */ | |
| 1882 | ||
| 1883 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1884 | offset to the entry relative to the TOC base (r2). */ | |
| 1885 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1886 | 0, /* rightshift */ |
| 1887 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1888 | 16, /* bitsize */ | |
| b34976b6 | 1889 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1890 | 0, /* bitpos */ |
| 1891 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1892 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1893 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1894 | FALSE, /* partial_inplace */ |
| d006db6c | 1895 | 0, /* src_mask */ |
| ad8e1ba5 | 1896 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1897 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1898 | |
| 411e1bfb AM |
1899 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1900 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1901 | 0, /* rightshift */ |
| 1902 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1903 | 16, /* bitsize */ | |
| b34976b6 | 1904 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1905 | 0, /* bitpos */ |
| 1906 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1907 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1908 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1909 | FALSE, /* partial_inplace */ |
| d006db6c | 1910 | 0, /* src_mask */ |
| ad8e1ba5 | 1911 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1912 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1913 | |
| 411e1bfb AM |
1914 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1915 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1916 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1917 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1918 | 16, /* bitsize */ | |
| b34976b6 | 1919 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1920 | 0, /* bitpos */ |
| f9c6b907 | 1921 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1922 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1923 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1924 | FALSE, /* partial_inplace */ |
| d006db6c | 1925 | 0, /* src_mask */ |
| 411e1bfb | 1926 | 0xffff, /* dst_mask */ |
| b34976b6 | 1927 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1928 | |
| 411e1bfb AM |
1929 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1930 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1931 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1932 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1933 | 16, /* bitsize */ | |
| b34976b6 | 1934 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1935 | 0, /* bitpos */ |
| f9c6b907 | 1936 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1937 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1938 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1939 | FALSE, /* partial_inplace */ |
| d006db6c | 1940 | 0, /* src_mask */ |
| 411e1bfb | 1941 | 0xffff, /* dst_mask */ |
| b34976b6 | 1942 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1943 | |
| 25f23106 AM |
1944 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1945 | 0, /* rightshift */ | |
| 1946 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1947 | 0, /* bitsize */ | |
| 1948 | FALSE, /* pc_relative */ | |
| 1949 | 0, /* bitpos */ | |
| 1950 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1951 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1952 | "R_PPC64_JMP_IREL", /* name */ | |
| 1953 | FALSE, /* partial_inplace */ | |
| 1954 | 0, /* src_mask */ | |
| 1955 | 0, /* dst_mask */ | |
| 1956 | FALSE), /* pcrel_offset */ | |
| 1957 | ||
| e054468f AM |
1958 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1959 | 0, /* rightshift */ | |
| 1960 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1961 | 64, /* bitsize */ | |
| 1962 | FALSE, /* pc_relative */ | |
| 1963 | 0, /* bitpos */ | |
| 1964 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1965 | bfd_elf_generic_reloc, /* special_function */ | |
| 1966 | "R_PPC64_IRELATIVE", /* name */ | |
| 1967 | FALSE, /* partial_inplace */ | |
| 1968 | 0, /* src_mask */ | |
| 1969 | ONES (64), /* dst_mask */ | |
| 1970 | FALSE), /* pcrel_offset */ | |
| 1971 | ||
| 25f23106 AM |
1972 | /* A 16 bit relative relocation. */ |
| 1973 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1974 | 0, /* rightshift */ | |
| 1975 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1976 | 16, /* bitsize */ | |
| 1977 | TRUE, /* pc_relative */ | |
| 1978 | 0, /* bitpos */ | |
| b80eed39 | 1979 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1980 | bfd_elf_generic_reloc, /* special_function */ |
| 1981 | "R_PPC64_REL16", /* name */ | |
| 1982 | FALSE, /* partial_inplace */ | |
| 1983 | 0, /* src_mask */ | |
| 1984 | 0xffff, /* dst_mask */ | |
| 1985 | TRUE), /* pcrel_offset */ | |
| 1986 | ||
| 1987 | /* A 16 bit relative relocation without overflow. */ | |
| 1988 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1989 | 0, /* rightshift */ | |
| 1990 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1991 | 16, /* bitsize */ | |
| 1992 | TRUE, /* pc_relative */ | |
| 1993 | 0, /* bitpos */ | |
| 1994 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1995 | bfd_elf_generic_reloc, /* special_function */ | |
| 1996 | "R_PPC64_REL16_LO", /* name */ | |
| 1997 | FALSE, /* partial_inplace */ | |
| 1998 | 0, /* src_mask */ | |
| 1999 | 0xffff, /* dst_mask */ | |
| 2000 | TRUE), /* pcrel_offset */ | |
| 2001 | ||
| 2002 | /* The high order 16 bits of a relative address. */ | |
| 2003 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2004 | 16, /* rightshift */ | |
| 2005 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2006 | 16, /* bitsize */ | |
| 2007 | TRUE, /* pc_relative */ | |
| 2008 | 0, /* bitpos */ | |
| f9c6b907 | 2009 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2010 | bfd_elf_generic_reloc, /* special_function */ |
| 2011 | "R_PPC64_REL16_HI", /* name */ | |
| 2012 | FALSE, /* partial_inplace */ | |
| 2013 | 0, /* src_mask */ | |
| 2014 | 0xffff, /* dst_mask */ | |
| 2015 | TRUE), /* pcrel_offset */ | |
| 2016 | ||
| 2017 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2018 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2019 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2020 | 16, /* rightshift */ | |
| 2021 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2022 | 16, /* bitsize */ | |
| 2023 | TRUE, /* pc_relative */ | |
| 2024 | 0, /* bitpos */ | |
| f9c6b907 | 2025 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2026 | ppc64_elf_ha_reloc, /* special_function */ |
| 2027 | "R_PPC64_REL16_HA", /* name */ | |
| 2028 | FALSE, /* partial_inplace */ | |
| 2029 | 0, /* src_mask */ | |
| 2030 | 0xffff, /* dst_mask */ | |
| 2031 | TRUE), /* pcrel_offset */ | |
| 2032 | ||
| a680de9a PB |
2033 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2034 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2035 | 16, /* rightshift */ | |
| 2036 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2037 | 16, /* bitsize */ | |
| 2038 | TRUE, /* pc_relative */ | |
| 2039 | 0, /* bitpos */ | |
| 2040 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2041 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2042 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2043 | FALSE, /* partial_inplace */ | |
| 2044 | 0, /* src_mask */ | |
| 2045 | 0x1fffc1, /* dst_mask */ | |
| 2046 | TRUE), /* pcrel_offset */ | |
| 2047 | ||
| f9c6b907 AM |
2048 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2049 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2050 | 16, /* rightshift */ | |
| 2051 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2052 | 16, /* bitsize */ | |
| 2053 | FALSE, /* pc_relative */ | |
| 2054 | 0, /* bitpos */ | |
| 2055 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2056 | bfd_elf_generic_reloc, /* special_function */ | |
| 2057 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2058 | FALSE, /* partial_inplace */ | |
| 2059 | 0, /* src_mask */ | |
| 2060 | 0xffff, /* dst_mask */ | |
| 2061 | FALSE), /* pcrel_offset */ | |
| 2062 | ||
| 2063 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2064 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2065 | 16, /* rightshift */ | |
| 2066 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2067 | 16, /* bitsize */ | |
| 2068 | FALSE, /* pc_relative */ | |
| 2069 | 0, /* bitpos */ | |
| 2070 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2071 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2072 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2073 | FALSE, /* partial_inplace */ | |
| 2074 | 0, /* src_mask */ | |
| 2075 | 0xffff, /* dst_mask */ | |
| 2076 | FALSE), /* pcrel_offset */ | |
| 2077 | ||
| 2078 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2079 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2080 | 16, /* rightshift */ | |
| 2081 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2082 | 16, /* bitsize */ | |
| 2083 | FALSE, /* pc_relative */ | |
| 2084 | 0, /* bitpos */ | |
| 2085 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2086 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2087 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2088 | FALSE, /* partial_inplace */ | |
| 2089 | 0, /* src_mask */ | |
| 2090 | 0xffff, /* dst_mask */ | |
| 2091 | FALSE), /* pcrel_offset */ | |
| 2092 | ||
| 2093 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2094 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2095 | 16, /* rightshift */ | |
| 2096 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2097 | 16, /* bitsize */ | |
| 2098 | FALSE, /* pc_relative */ | |
| 2099 | 0, /* bitpos */ | |
| 2100 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2101 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2102 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2103 | FALSE, /* partial_inplace */ | |
| 2104 | 0, /* src_mask */ | |
| 2105 | 0xffff, /* dst_mask */ | |
| 2106 | FALSE), /* pcrel_offset */ | |
| 2107 | ||
| 2108 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2109 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2110 | 16, /* rightshift */ | |
| 2111 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2112 | 16, /* bitsize */ | |
| 2113 | FALSE, /* pc_relative */ | |
| 2114 | 0, /* bitpos */ | |
| 2115 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2116 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2117 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2118 | FALSE, /* partial_inplace */ | |
| 2119 | 0, /* src_mask */ | |
| 2120 | 0xffff, /* dst_mask */ | |
| 2121 | FALSE), /* pcrel_offset */ | |
| 2122 | ||
| 2123 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2124 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2125 | 16, /* rightshift */ | |
| 2126 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2127 | 16, /* bitsize */ | |
| 2128 | FALSE, /* pc_relative */ | |
| 2129 | 0, /* bitpos */ | |
| 2130 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2131 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2132 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2133 | FALSE, /* partial_inplace */ | |
| 2134 | 0, /* src_mask */ | |
| 2135 | 0xffff, /* dst_mask */ | |
| 2136 | FALSE), /* pcrel_offset */ | |
| 2137 | ||
| 006589cf AM |
2138 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2139 | HOWTO (R_PPC64_ENTRY, | |
| 2140 | 0, /* rightshift */ | |
| 2141 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2142 | 32, /* bitsize */ | |
| 2143 | FALSE, /* pc_relative */ | |
| 2144 | 0, /* bitpos */ | |
| 2145 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2146 | bfd_elf_generic_reloc, /* special_function */ | |
| 2147 | "R_PPC64_ENTRY", /* name */ | |
| 2148 | FALSE, /* partial_inplace */ | |
| 2149 | 0, /* src_mask */ | |
| 2150 | 0, /* dst_mask */ | |
| 2151 | FALSE), /* pcrel_offset */ | |
| 2152 | ||
| 45965137 AM |
2153 | /* Like ADDR64, but use local entry point of function. */ |
| 2154 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2155 | 0, /* rightshift */ | |
| 2156 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2157 | 64, /* bitsize */ | |
| 2158 | FALSE, /* pc_relative */ | |
| 2159 | 0, /* bitpos */ | |
| 2160 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2161 | bfd_elf_generic_reloc, /* special_function */ | |
| 2162 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2163 | FALSE, /* partial_inplace */ | |
| 2164 | 0, /* src_mask */ | |
| 2165 | ONES (64), /* dst_mask */ | |
| 2166 | FALSE), /* pcrel_offset */ | |
| 2167 | ||
| 5bd4f169 AM |
2168 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2169 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2170 | 0, /* rightshift */ | |
| 2171 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2172 | 0, /* bitsize */ | |
| b34976b6 | 2173 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2174 | 0, /* bitpos */ |
| 2175 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2176 | NULL, /* special_function */ | |
| 2177 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2178 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2179 | 0, /* src_mask */ |
| 2180 | 0, /* dst_mask */ | |
| b34976b6 | 2181 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2182 | |
| 2183 | /* GNU extension to record C++ vtable member usage. */ | |
| 2184 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2185 | 0, /* rightshift */ | |
| 2186 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2187 | 0, /* bitsize */ | |
| b34976b6 | 2188 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2189 | 0, /* bitpos */ |
| 2190 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2191 | NULL, /* special_function */ | |
| 2192 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2193 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2194 | 0, /* src_mask */ |
| 2195 | 0, /* dst_mask */ | |
| b34976b6 | 2196 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2197 | }; |
| 2198 | ||
| 2199 | \f | |
| 2200 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2201 | be done. */ | |
| 2202 | ||
| 2203 | static void | |
| 4ce794b7 | 2204 | ppc_howto_init (void) |
| 5bd4f169 AM |
2205 | { |
| 2206 | unsigned int i, type; | |
| 2207 | ||
| a4b6fadd | 2208 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2209 | { |
| 2210 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2211 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2212 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2213 | } | |
| 2214 | } | |
| 2215 | ||
| 2216 | static reloc_howto_type * | |
| 4ce794b7 AM |
2217 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2218 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2219 | { |
| 411e1bfb | 2220 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2221 | |
| 2222 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2223 | /* Initialize howto table if needed. */ | |
| 2224 | ppc_howto_init (); | |
| 2225 | ||
| 4ce794b7 | 2226 | switch (code) |
| 5bd4f169 AM |
2227 | { |
| 2228 | default: | |
| 4ce794b7 | 2229 | return NULL; |
| 5bd4f169 | 2230 | |
| 411e1bfb AM |
2231 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2232 | break; | |
| 2233 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2234 | break; | |
| 2235 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2236 | break; | |
| 2237 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2238 | break; | |
| 2239 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2240 | break; | |
| 2241 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2242 | break; | |
| f9c6b907 AM |
2243 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2244 | break; | |
| 411e1bfb | 2245 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2246 | break; |
| f9c6b907 AM |
2247 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2248 | break; | |
| 411e1bfb | 2249 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2250 | break; |
| 411e1bfb | 2251 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2252 | break; |
| 411e1bfb | 2253 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2254 | break; |
| 411e1bfb | 2255 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2256 | break; |
| 411e1bfb | 2257 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2258 | break; |
| 411e1bfb | 2259 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2260 | break; |
| 411e1bfb | 2261 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2262 | break; |
| 411e1bfb | 2263 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2264 | break; |
| 411e1bfb | 2265 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2284 | break; |
| 411e1bfb | 2285 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2286 | break; |
| 411e1bfb | 2287 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2288 | break; |
| 411e1bfb | 2289 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2296 | break; |
| 411e1bfb | 2297 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2298 | break; |
| 411e1bfb | 2299 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2300 | break; |
| 411e1bfb | 2301 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2302 | break; |
| 411e1bfb | 2303 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2316 | break; |
| 411e1bfb | 2317 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2318 | break; |
| 411e1bfb | 2319 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2320 | break; |
| 411e1bfb | 2321 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2328 | break; |
| 411e1bfb | 2329 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2330 | break; |
| 411e1bfb | 2331 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2332 | break; |
| 411e1bfb | 2333 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2334 | break; |
| 411e1bfb | 2335 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb | 2337 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2338 | break; |
| 411e1bfb | 2339 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2340 | break; |
| 411e1bfb | 2341 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2342 | break; |
| 411e1bfb | 2343 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2344 | break; |
| 411e1bfb | 2345 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2346 | break; |
| 411e1bfb | 2347 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2348 | break; |
| 411e1bfb | 2349 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2350 | break; |
| 411e1bfb | 2351 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2352 | break; |
| 411e1bfb | 2353 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2354 | break; |
| 727fc41e AM |
2355 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2356 | break; | |
| 2357 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2358 | break; | |
| 411e1bfb | 2359 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2360 | break; |
| 411e1bfb | 2361 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2362 | break; |
| 411e1bfb | 2363 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2364 | break; |
| 411e1bfb | 2365 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2366 | break; |
| f9c6b907 AM |
2367 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2368 | break; | |
| 411e1bfb | 2369 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2370 | break; |
| f9c6b907 AM |
2371 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2372 | break; | |
| 411e1bfb | 2373 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2374 | break; |
| 411e1bfb AM |
2375 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2376 | break; | |
| 2377 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2378 | break; | |
| 2379 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2380 | break; | |
| f9c6b907 AM |
2381 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2382 | break; | |
| 411e1bfb AM |
2383 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2384 | break; | |
| f9c6b907 AM |
2385 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2386 | break; | |
| 411e1bfb AM |
2387 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2388 | break; | |
| 2389 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2390 | break; | |
| 2391 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2392 | break; | |
| 2393 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2394 | break; | |
| 2395 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2396 | break; | |
| 2397 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2398 | break; | |
| 2399 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2400 | break; | |
| 2401 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2402 | break; | |
| 2403 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2404 | break; | |
| 2405 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2406 | break; | |
| 2407 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2408 | break; | |
| 2409 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2410 | break; | |
| 2411 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2412 | break; | |
| 2413 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2414 | break; | |
| 2415 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2416 | break; | |
| 2417 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2418 | break; | |
| 2419 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2420 | break; | |
| 2421 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2422 | break; | |
| 2423 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2424 | break; | |
| 2425 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2426 | break; | |
| 2427 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2428 | break; | |
| 2429 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2430 | break; | |
| 2431 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2432 | break; | |
| 2433 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2434 | break; | |
| 2435 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2436 | break; | |
| 2437 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2438 | break; | |
| 2439 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2440 | break; | |
| 2441 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2442 | break; | |
| 2443 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2444 | break; | |
| 25f23106 AM |
2445 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2446 | break; | |
| 2447 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2448 | break; | |
| 2449 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2450 | break; | |
| 2451 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2452 | break; | |
| a680de9a PB |
2453 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2454 | break; | |
| 006589cf AM |
2455 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2456 | break; | |
| 45965137 AM |
2457 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2458 | break; | |
| 411e1bfb AM |
2459 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2460 | break; | |
| 2461 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2462 | break; |
| 2463 | } | |
| 2464 | ||
| 4ce794b7 | 2465 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2466 | }; |
| 2467 | ||
| 157090f7 AM |
2468 | static reloc_howto_type * |
| 2469 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2470 | const char *r_name) | |
| 2471 | { | |
| 2472 | unsigned int i; | |
| 2473 | ||
| a4b6fadd | 2474 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2475 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2476 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2477 | return &ppc64_elf_howto_raw[i]; | |
| 2478 | ||
| 2479 | return NULL; | |
| 2480 | } | |
| 2481 | ||
| 5bd4f169 AM |
2482 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2483 | ||
| 2484 | static void | |
| 4ce794b7 AM |
2485 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2486 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2487 | { |
| 65f38f15 AM |
2488 | unsigned int type; |
| 2489 | ||
| ef60b7ff | 2490 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2491 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2492 | ppc_howto_init (); |
| 2493 | ||
| 65f38f15 | 2494 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2495 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2496 | { |
| 695344c0 | 2497 | /* xgettext:c-format */ |
| 4eca0228 AM |
2498 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
| 2499 | abfd, (int) type); | |
| 3ec2b351 | 2500 | type = R_PPC64_NONE; |
| d0fb9a8d | 2501 | } |
| 65f38f15 | 2502 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2503 | } |
| 2504 | ||
| 04c9666a | 2505 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2506 | |
| 2507 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2508 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2509 | void *data, asection *input_section, | |
| 2510 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2511 | { |
| a680de9a PB |
2512 | enum elf_ppc64_reloc_type r_type; |
| 2513 | long insn; | |
| 2514 | bfd_size_type octets; | |
| 2515 | bfd_vma value; | |
| 2516 | ||
| 805fc799 AM |
2517 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2518 | call the generic function. Any adjustment will be done at final | |
| 2519 | link time. */ | |
| 2520 | if (output_bfd != NULL) | |
| cedb70c5 | 2521 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2522 | input_section, output_bfd, error_message); |
| 2523 | ||
| 2524 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2525 | We won't actually be using the low 16 bits, so trashing them | |
| 2526 | doesn't matter. */ | |
| 2527 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2528 | r_type = reloc_entry->howto->type; |
| 2529 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2530 | return bfd_reloc_continue; | |
| 2531 | ||
| 2532 | value = 0; | |
| 2533 | if (!bfd_is_com_section (symbol->section)) | |
| 2534 | value = symbol->value; | |
| 2535 | value += (reloc_entry->addend | |
| 2536 | + symbol->section->output_offset | |
| 2537 | + symbol->section->output_section->vma); | |
| 2538 | value -= (reloc_entry->address | |
| 2539 | + input_section->output_offset | |
| 2540 | + input_section->output_section->vma); | |
| 2541 | value = (bfd_signed_vma) value >> 16; | |
| 2542 | ||
| 2543 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2544 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2545 | insn &= ~0x1fffc1; | |
| 2546 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
| 2547 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
| 2548 | if (value + 0x8000 > 0xffff) | |
| 2549 | return bfd_reloc_overflow; | |
| 2550 | return bfd_reloc_ok; | |
| 805fc799 | 2551 | } |
| 5bd4f169 | 2552 | |
| 2441e016 AM |
2553 | static bfd_reloc_status_type |
| 2554 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2555 | void *data, asection *input_section, | |
| 2556 | bfd *output_bfd, char **error_message) | |
| 2557 | { | |
| 2558 | if (output_bfd != NULL) | |
| 2559 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2560 | input_section, output_bfd, error_message); | |
| 2561 | ||
| 699733f6 AM |
2562 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2563 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2564 | { |
| 2565 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2566 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2567 | NULL, NULL, FALSE); |
| 2441e016 AM |
2568 | if (dest != (bfd_vma) -1) |
| 2569 | reloc_entry->addend = dest - (symbol->value | |
| 2570 | + symbol->section->output_section->vma | |
| 2571 | + symbol->section->output_offset); | |
| 2572 | } | |
| 810d4e75 AM |
2573 | else |
| 2574 | { | |
| 2575 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2576 | ||
| 2577 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2578 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2579 | && abiversion (symbol->section->owner) >= 2) |
| 2580 | { | |
| 2581 | unsigned int i; | |
| 2582 | ||
| 2583 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2584 | { | |
| 2585 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2586 | ||
| 2587 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2588 | { | |
| 2589 | elfsym = (elf_symbol_type *) symdef; | |
| 2590 | break; | |
| 2591 | } | |
| 2592 | } | |
| 2593 | } | |
| 2594 | reloc_entry->addend | |
| 2595 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2596 | } | |
| 2441e016 AM |
2597 | return bfd_reloc_continue; |
| 2598 | } | |
| 2599 | ||
| 805fc799 | 2600 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2601 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2602 | void *data, asection *input_section, | |
| 2603 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2604 | { |
| 2605 | long insn; | |
| 04c9666a | 2606 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2607 | bfd_size_type octets; |
| 794e51c0 AM |
2608 | /* Assume 'at' branch hints. */ |
| 2609 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2610 | |
| 2611 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2612 | call the generic function. Any adjustment will be done at final | |
| 2613 | link time. */ | |
| 5bd4f169 | 2614 | if (output_bfd != NULL) |
| cedb70c5 | 2615 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2616 | input_section, output_bfd, error_message); |
| 2617 | ||
| 2618 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2619 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2620 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2621 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2622 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2623 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2624 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2625 | |
| 794e51c0 | 2626 | if (is_isa_v2) |
| 5bd4f169 | 2627 | { |
| 805fc799 AM |
2628 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2629 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2630 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2631 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2632 | insn |= 0x02 << 21; | |
| 2633 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2634 | insn |= 0x08 << 21; | |
| 2635 | else | |
| 2441e016 | 2636 | goto out; |
| 5bd4f169 | 2637 | } |
| 805fc799 AM |
2638 | else |
| 2639 | { | |
| 2640 | bfd_vma target = 0; | |
| 2641 | bfd_vma from; | |
| 5bd4f169 | 2642 | |
| 805fc799 AM |
2643 | if (!bfd_is_com_section (symbol->section)) |
| 2644 | target = symbol->value; | |
| 2645 | target += symbol->section->output_section->vma; | |
| 2646 | target += symbol->section->output_offset; | |
| 2647 | target += reloc_entry->addend; | |
| 5bd4f169 | 2648 | |
| 805fc799 AM |
2649 | from = (reloc_entry->address |
| 2650 | + input_section->output_offset | |
| 2651 | + input_section->output_section->vma); | |
| 5bd4f169 | 2652 | |
| 805fc799 AM |
2653 | /* Invert 'y' bit if not the default. */ |
| 2654 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2655 | insn ^= 0x01 << 21; | |
| 2656 | } | |
| 4ce794b7 | 2657 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2658 | out: |
| 2659 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2660 | input_section, output_bfd, error_message); | |
| 805fc799 | 2661 | } |
| 5bd4f169 | 2662 | |
| 805fc799 | 2663 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2664 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2665 | void *data, asection *input_section, | |
| 2666 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2667 | { |
| 2668 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2669 | call the generic function. Any adjustment will be done at final | |
| 2670 | link time. */ | |
| 2671 | if (output_bfd != NULL) | |
| cedb70c5 | 2672 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2673 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2674 | |
| 805fc799 AM |
2675 | /* Subtract the symbol section base address. */ |
| 2676 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2677 | return bfd_reloc_continue; |
| 2678 | } | |
| 2679 | ||
| 805fc799 | 2680 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2681 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2682 | void *data, asection *input_section, | |
| 2683 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2684 | { |
| 2685 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2686 | call the generic function. Any adjustment will be done at final | |
| 2687 | link time. */ | |
| 2688 | if (output_bfd != NULL) | |
| cedb70c5 | 2689 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2690 | input_section, output_bfd, error_message); |
| 2691 | ||
| 2692 | /* Subtract the symbol section base address. */ | |
| 2693 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2694 | ||
| 2695 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2696 | reloc_entry->addend += 0x8000; | |
| 2697 | return bfd_reloc_continue; | |
| 2698 | } | |
| 2699 | ||
| 2700 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2701 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2702 | void *data, asection *input_section, | |
| 2703 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2704 | { |
| 2705 | bfd_vma TOCstart; | |
| 2706 | ||
| 2707 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2708 | call the generic function. Any adjustment will be done at final | |
| 2709 | link time. */ | |
| 2710 | if (output_bfd != NULL) | |
| cedb70c5 | 2711 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2712 | input_section, output_bfd, error_message); |
| 2713 | ||
| 2714 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2715 | if (TOCstart == 0) | |
| 1c865ab2 | 2716 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2717 | |
| 2718 | /* Subtract the TOC base address. */ | |
| 2719 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2720 | return bfd_reloc_continue; | |
| 2721 | } | |
| 2722 | ||
| 2723 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2724 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2725 | void *data, asection *input_section, | |
| 2726 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2727 | { |
| 2728 | bfd_vma TOCstart; | |
| 2729 | ||
| 2730 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2731 | call the generic function. Any adjustment will be done at final | |
| 2732 | link time. */ | |
| 2733 | if (output_bfd != NULL) | |
| cedb70c5 | 2734 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2735 | input_section, output_bfd, error_message); |
| 2736 | ||
| 2737 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2738 | if (TOCstart == 0) | |
| 1c865ab2 | 2739 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2740 | |
| 2741 | /* Subtract the TOC base address. */ | |
| 2742 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2743 | ||
| 2744 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2745 | reloc_entry->addend += 0x8000; | |
| 2746 | return bfd_reloc_continue; | |
| 2747 | } | |
| 2748 | ||
| 2749 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2750 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2751 | void *data, asection *input_section, | |
| 2752 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2753 | { |
| 2754 | bfd_vma TOCstart; | |
| 2755 | bfd_size_type octets; | |
| 2756 | ||
| 2757 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2758 | call the generic function. Any adjustment will be done at final | |
| 2759 | link time. */ | |
| 2760 | if (output_bfd != NULL) | |
| cedb70c5 | 2761 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2762 | input_section, output_bfd, error_message); |
| 2763 | ||
| 2764 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2765 | if (TOCstart == 0) | |
| 1c865ab2 | 2766 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2767 | |
| 2768 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2769 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2770 | return bfd_reloc_ok; | |
| 2771 | } | |
| 2772 | ||
| 2773 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2774 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2775 | void *data, asection *input_section, | |
| 2776 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2777 | { |
| 2778 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2779 | call the generic function. Any adjustment will be done at final | |
| 2780 | link time. */ | |
| 2781 | if (output_bfd != NULL) | |
| cedb70c5 | 2782 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2783 | input_section, output_bfd, error_message); |
| 2784 | ||
| 2785 | if (error_message != NULL) | |
| 2786 | { | |
| 2787 | static char buf[60]; | |
| 2788 | sprintf (buf, "generic linker can't handle %s", | |
| 2789 | reloc_entry->howto->name); | |
| 2790 | *error_message = buf; | |
| 2791 | } | |
| 2792 | return bfd_reloc_dangerous; | |
| 2793 | } | |
| 2794 | ||
| 927be08e AM |
2795 | /* Track GOT entries needed for a given symbol. We might need more |
| 2796 | than one got entry per symbol. */ | |
| 2797 | struct got_entry | |
| 2798 | { | |
| 2799 | struct got_entry *next; | |
| 2800 | ||
| 2801 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2802 | bfd_vma addend; | |
| 2803 | ||
| 2804 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2805 | symbol referenced from different input files. This is to support | |
| 2806 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2807 | from one input file to another. After partitioning into TOC groups | |
| 2808 | we merge entries within the group. | |
| 2809 | ||
| 2810 | Point to the BFD owning this GOT entry. */ | |
| 2811 | bfd *owner; | |
| 2812 | ||
| 2813 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2814 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2815 | unsigned char tls_type; |
| 927be08e AM |
2816 | |
| 2817 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2818 | unsigned char is_indirect; |
| 927be08e AM |
2819 | |
| 2820 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2821 | union | |
| 2822 | { | |
| 2823 | bfd_signed_vma refcount; | |
| 2824 | bfd_vma offset; | |
| 2825 | struct got_entry *ent; | |
| 2826 | } got; | |
| 2827 | }; | |
| 2828 | ||
| 2829 | /* The same for PLT. */ | |
| 2830 | struct plt_entry | |
| 2831 | { | |
| 2832 | struct plt_entry *next; | |
| 2833 | ||
| 2834 | bfd_vma addend; | |
| 2835 | ||
| 2836 | union | |
| 2837 | { | |
| 2838 | bfd_signed_vma refcount; | |
| 2839 | bfd_vma offset; | |
| 2840 | } plt; | |
| 2841 | }; | |
| 2842 | ||
| e717da7e AM |
2843 | struct ppc64_elf_obj_tdata |
| 2844 | { | |
| 2845 | struct elf_obj_tdata elf; | |
| 2846 | ||
| 2847 | /* Shortcuts to dynamic linker sections. */ | |
| 2848 | asection *got; | |
| 2849 | asection *relgot; | |
| 2850 | ||
| b3fac117 AM |
2851 | /* Used during garbage collection. We attach global symbols defined |
| 2852 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2853 | asection *deleted_section; | |
| 81688140 | 2854 | |
| 927be08e | 2855 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2856 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2857 | struct got_entry tlsld_got; |
| 8860955f | 2858 | |
| 729eabd5 AM |
2859 | union { |
| 2860 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2861 | Elf_Internal_Rela *relocs; | |
| 2862 | ||
| 2863 | /* Section contents. */ | |
| 2864 | bfd_byte *contents; | |
| 2865 | } opd; | |
| d77c8a4b AM |
2866 | |
| 2867 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2868 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2869 | unsigned int has_small_toc_reloc : 1; |
| 2870 | ||
| 560c8763 AM |
2871 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2872 | instruction not one we handle. */ | |
| 2873 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2874 | }; |
| 2875 | ||
| 2876 | #define ppc64_elf_tdata(bfd) \ | |
| 2877 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2878 | ||
| 2879 | #define ppc64_tlsld_got(bfd) \ | |
| 2880 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2881 | ||
| 0c8d6e5c AM |
2882 | #define is_ppc64_elf(bfd) \ |
| 2883 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2884 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2885 | |
| e717da7e AM |
2886 | /* Override the generic function because we store some extras. */ |
| 2887 | ||
| 2888 | static bfd_boolean | |
| 2889 | ppc64_elf_mkobject (bfd *abfd) | |
| 2890 | { | |
| 0ffa91dd | 2891 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2892 | PPC64_ELF_DATA); |
| e717da7e AM |
2893 | } |
| 2894 | ||
| feee612b | 2895 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2896 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2897 | |
| b34976b6 | 2898 | static bfd_boolean |
| 4ce794b7 | 2899 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2900 | { |
| 14b57c7c AM |
2901 | if (!abfd->arch_info->the_default) |
| 2902 | return TRUE; | |
| 2903 | ||
| 2904 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2905 | { |
| 2906 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2907 | ||
| 2908 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2909 | { | |
| 2910 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2911 | abfd->arch_info = abfd->arch_info->next; | |
| 2912 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2913 | } | |
| 2914 | } | |
| 14b57c7c | 2915 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2916 | } |
| 2917 | ||
| d37c89e5 AM |
2918 | /* Support for core dump NOTE sections. */ |
| 2919 | ||
| 2920 | static bfd_boolean | |
| 2921 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2922 | { | |
| eea6121a | 2923 | size_t offset, size; |
| d37c89e5 AM |
2924 | |
| 2925 | if (note->descsz != 504) | |
| 2926 | return FALSE; | |
| 2927 | ||
| 2928 | /* pr_cursig */ | |
| 228e534f | 2929 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2930 | |
| 2931 | /* pr_pid */ | |
| 228e534f | 2932 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2933 | |
| 2934 | /* pr_reg */ | |
| 2935 | offset = 112; | |
| eea6121a | 2936 | size = 384; |
| d37c89e5 AM |
2937 | |
| 2938 | /* Make a ".reg/999" section. */ | |
| 2939 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2940 | size, note->descpos + offset); |
| d37c89e5 AM |
2941 | } |
| 2942 | ||
| 2943 | static bfd_boolean | |
| 2944 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2945 | { | |
| 2946 | if (note->descsz != 136) | |
| 2947 | return FALSE; | |
| 2948 | ||
| 228e534f | 2949 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2950 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2951 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2952 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2953 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2954 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2955 | ||
| 2956 | return TRUE; | |
| 2957 | } | |
| 2958 | ||
| 183e98be AM |
2959 | static char * |
| 2960 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2961 | ...) | |
| 2962 | { | |
| 2963 | switch (note_type) | |
| 2964 | { | |
| 2965 | default: | |
| 2966 | return NULL; | |
| 2967 | ||
| 2968 | case NT_PRPSINFO: | |
| 2969 | { | |
| 2970 | char data[136]; | |
| 2971 | va_list ap; | |
| 2972 | ||
| 2973 | va_start (ap, note_type); | |
| 75cd47ed | 2974 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2975 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2976 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2977 | va_end (ap); | |
| 2978 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2979 | "CORE", note_type, data, sizeof (data)); | |
| 2980 | } | |
| 2981 | ||
| 2982 | case NT_PRSTATUS: | |
| 2983 | { | |
| 2984 | char data[504]; | |
| 2985 | va_list ap; | |
| 2986 | long pid; | |
| 2987 | int cursig; | |
| 2988 | const void *greg; | |
| 2989 | ||
| 2990 | va_start (ap, note_type); | |
| 2991 | memset (data, 0, 112); | |
| 2992 | pid = va_arg (ap, long); | |
| 2993 | bfd_put_32 (abfd, pid, data + 32); | |
| 2994 | cursig = va_arg (ap, int); | |
| 2995 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2996 | greg = va_arg (ap, const void *); | |
| 2997 | memcpy (data + 112, greg, 384); | |
| 2998 | memset (data + 496, 0, 8); | |
| 2999 | va_end (ap); | |
| 3000 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3001 | "CORE", note_type, data, sizeof (data)); | |
| 3002 | } | |
| 3003 | } | |
| 3004 | } | |
| 3005 | ||
| 5d35169e AM |
3006 | /* Add extra PPC sections. */ |
| 3007 | ||
| b35d266b | 3008 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3009 | { |
| 0112cd26 NC |
3010 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3011 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3012 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3013 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3014 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3015 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3016 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
3017 | }; |
| 3018 | ||
| 7c8fe5c4 AM |
3019 | enum _ppc64_sec_type { |
| 3020 | sec_normal = 0, | |
| 3021 | sec_opd = 1, | |
| 3022 | sec_toc = 2 | |
| 3023 | }; | |
| 3024 | ||
| f0abc2a1 AM |
3025 | struct _ppc64_elf_section_data |
| 3026 | { | |
| 3027 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3028 | |
| f0abc2a1 AM |
3029 | union |
| 3030 | { | |
| 51aecdc5 AM |
3031 | /* An array with one entry for each opd function descriptor, |
| 3032 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3033 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3034 | struct _opd_sec_data |
| 3035 | { | |
| 3036 | /* Points to the function code section for local opd entries. */ | |
| 3037 | asection **func_sec; | |
| 3038 | ||
| 3039 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3040 | long *adjust; | |
| 3041 | } opd; | |
| 7c8fe5c4 | 3042 | |
| 3a71aa26 AM |
3043 | /* An array for toc sections, indexed by offset/8. */ |
| 3044 | struct _toc_sec_data | |
| 3045 | { | |
| 3046 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3047 | unsigned *symndx; | |
| 3048 | ||
| 3049 | /* And the relocation addend. */ | |
| 3050 | bfd_vma *add; | |
| 3051 | } toc; | |
| 7c8fe5c4 AM |
3052 | } u; |
| 3053 | ||
| 3054 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3055 | |
| 7c8fe5c4 AM |
3056 | /* Flag set when small branches are detected. Used to |
| 3057 | select suitable defaults for the stub group size. */ | |
| 3058 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3059 | }; |
| 3060 | ||
| 3061 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3062 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3063 | |
| 3064 | static bfd_boolean | |
| 4ce794b7 | 3065 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3066 | { |
| f592407e AM |
3067 | if (!sec->used_by_bfd) |
| 3068 | { | |
| 3069 | struct _ppc64_elf_section_data *sdata; | |
| 3070 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3071 | |
| f592407e AM |
3072 | sdata = bfd_zalloc (abfd, amt); |
| 3073 | if (sdata == NULL) | |
| 3074 | return FALSE; | |
| 3075 | sec->used_by_bfd = sdata; | |
| 3076 | } | |
| f0abc2a1 AM |
3077 | |
| 3078 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3079 | } | |
| 4025353c | 3080 | |
| 74f0fb50 | 3081 | static struct _opd_sec_data * |
| 4025353c AM |
3082 | get_opd_info (asection * sec) |
| 3083 | { | |
| 3084 | if (sec != NULL | |
| 3085 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3086 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3087 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3088 | return NULL; |
| 3089 | } | |
| 90e3cdf2 JJ |
3090 | \f |
| 3091 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3092 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3093 | static asection *synthetic_opd; |
| 90e3cdf2 | 3094 | |
| 699733f6 | 3095 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3096 | |
| 3097 | static int | |
| 3098 | compare_symbols (const void *ap, const void *bp) | |
| 3099 | { | |
| 3100 | const asymbol *a = * (const asymbol **) ap; | |
| 3101 | const asymbol *b = * (const asymbol **) bp; | |
| 3102 | ||
| 699733f6 AM |
3103 | /* Section symbols first. */ |
| 3104 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3105 | return -1; |
| 699733f6 | 3106 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3107 | return 1; |
| 3108 | ||
| 699733f6 | 3109 | /* then .opd symbols. */ |
| cd285db5 AM |
3110 | if (synthetic_opd != NULL) |
| 3111 | { | |
| 3112 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3113 | && strcmp (b->section->name, ".opd") != 0) | |
| 3114 | return -1; | |
| 3115 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3116 | && strcmp (b->section->name, ".opd") == 0) | |
| 3117 | return 1; | |
| 3118 | } | |
| 90e3cdf2 | 3119 | |
| 699733f6 | 3120 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3121 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3122 | == (SEC_CODE | SEC_ALLOC) | |
| 3123 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3124 | != (SEC_CODE | SEC_ALLOC)) | |
| 3125 | return -1; | |
| 3126 | ||
| 3127 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3128 | != (SEC_CODE | SEC_ALLOC) | |
| 3129 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3130 | == (SEC_CODE | SEC_ALLOC)) | |
| 3131 | return 1; | |
| 3132 | ||
| 3133 | if (synthetic_relocatable) | |
| 3134 | { | |
| 3135 | if (a->section->id < b->section->id) | |
| 3136 | return -1; | |
| 3137 | ||
| 3138 | if (a->section->id > b->section->id) | |
| 3139 | return 1; | |
| 3140 | } | |
| 3141 | ||
| 3142 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3143 | return -1; | |
| 3144 | ||
| 3145 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3146 | return 1; | |
| 3147 | ||
| 4d35a0aa AM |
3148 | /* For syms with the same value, prefer strong dynamic global function |
| 3149 | syms over other syms. */ | |
| 3150 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3151 | return -1; | |
| 3152 | ||
| 3153 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3154 | return 1; | |
| 3155 | ||
| 3156 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3157 | return -1; | |
| 3158 | ||
| 3159 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3160 | return 1; | |
| 3161 | ||
| 3162 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3163 | return -1; | |
| 3164 | ||
| 3165 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3166 | return 1; | |
| 3167 | ||
| 3168 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3169 | return -1; | |
| 3170 | ||
| 3171 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3172 | return 1; | |
| 3173 | ||
| 90e3cdf2 JJ |
3174 | return 0; |
| 3175 | } | |
| 3176 | ||
| 699733f6 | 3177 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3178 | |
| 699733f6 | 3179 | static asymbol * |
| 7292b3ac | 3180 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3181 | { |
| 699733f6 | 3182 | long mid; |
| 90e3cdf2 | 3183 | |
| 7292b3ac | 3184 | if (id == (unsigned) -1) |
| 699733f6 AM |
3185 | { |
| 3186 | while (lo < hi) | |
| 3187 | { | |
| 3188 | mid = (lo + hi) >> 1; | |
| 3189 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3190 | lo = mid + 1; | |
| 3191 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3192 | hi = mid; | |
| 3193 | else | |
| 3194 | return syms[mid]; | |
| 3195 | } | |
| 3196 | } | |
| 3197 | else | |
| 3198 | { | |
| 3199 | while (lo < hi) | |
| 3200 | { | |
| 3201 | mid = (lo + hi) >> 1; | |
| 3202 | if (syms[mid]->section->id < id) | |
| 3203 | lo = mid + 1; | |
| 3204 | else if (syms[mid]->section->id > id) | |
| 3205 | hi = mid; | |
| 3206 | else if (syms[mid]->value < value) | |
| 3207 | lo = mid + 1; | |
| 3208 | else if (syms[mid]->value > value) | |
| 3209 | hi = mid; | |
| 3210 | else | |
| 3211 | return syms[mid]; | |
| 3212 | } | |
| 3213 | } | |
| 3214 | return NULL; | |
| 90e3cdf2 JJ |
3215 | } |
| 3216 | ||
| 468392fb AM |
3217 | static bfd_boolean |
| 3218 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3219 | { | |
| 3220 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3221 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3222 | && section->vma <= vma | |
| 3223 | && vma < section->vma + section->size); | |
| 3224 | } | |
| 3225 | ||
| 699733f6 | 3226 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3227 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3228 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3229 | |
| 3230 | static long | |
| a7535cf3 AM |
3231 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3232 | long static_count, asymbol **static_syms, | |
| 3233 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3234 | asymbol **ret) |
| 90e3cdf2 JJ |
3235 | { |
| 3236 | asymbol *s; | |
| 699733f6 AM |
3237 | long i; |
| 3238 | long count; | |
| 90e3cdf2 | 3239 | char *names; |
| a7535cf3 | 3240 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3241 | asection *opd = NULL; |
| 90e3cdf2 | 3242 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3243 | asymbol **syms; |
| ee67d69a | 3244 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3245 | |
| 3246 | *ret = NULL; | |
| 3247 | ||
| ee67d69a AM |
3248 | if (abi < 2) |
| 3249 | { | |
| 3250 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3251 | if (opd == NULL && abi == 1) | |
| 3252 | return 0; | |
| 3253 | } | |
| 90e3cdf2 | 3254 | |
| a7535cf3 | 3255 | symcount = static_count; |
| c9727e01 | 3256 | if (!relocatable) |
| a7535cf3 | 3257 | symcount += dyn_count; |
| 90e3cdf2 | 3258 | if (symcount == 0) |
| c9727e01 | 3259 | return 0; |
| 90e3cdf2 | 3260 | |
| a7535cf3 AM |
3261 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3262 | if (syms == NULL) | |
| 7356fed5 | 3263 | return -1; |
| a7535cf3 AM |
3264 | |
| 3265 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3266 | { | |
| 3267 | /* Use both symbol tables. */ | |
| 3268 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3269 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3270 | } | |
| 3271 | else if (!relocatable && static_count == 0) | |
| 3272 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3273 | else | |
| 3274 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3275 | ||
| 90e3cdf2 | 3276 | synthetic_relocatable = relocatable; |
| cd285db5 | 3277 | synthetic_opd = opd; |
| 595da8c5 | 3278 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3279 | |
| c9727e01 AM |
3280 | if (!relocatable && symcount > 1) |
| 3281 | { | |
| 3282 | long j; | |
| 3283 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3284 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3285 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3286 | for (i = 1, j = 1; i < symcount; ++i) |
| 3287 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3288 | != syms[i]->value + syms[i]->section->vma) | |
| 3289 | syms[j++] = syms[i]; | |
| 3290 | symcount = j; | |
| 3291 | } | |
| 3292 | ||
| 699733f6 | 3293 | i = 0; |
| cd285db5 AM |
3294 | /* Note that here and in compare_symbols we can't compare opd and |
| 3295 | sym->section directly. With separate debug info files, the | |
| 3296 | symbols will be extracted from the debug file while abfd passed | |
| 3297 | to this function is the real binary. */ | |
| 3298 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 699733f6 AM |
3299 | ++i; |
| 3300 | codesecsym = i; | |
| 90e3cdf2 | 3301 | |
| 699733f6 AM |
3302 | for (; i < symcount; ++i) |
| 3303 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3304 | != (SEC_CODE | SEC_ALLOC)) | |
| 3305 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3306 | break; | |
| 3307 | codesecsymend = i; | |
| 90e3cdf2 | 3308 | |
| 699733f6 AM |
3309 | for (; i < symcount; ++i) |
| 3310 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3311 | break; | |
| 3312 | secsymend = i; | |
| 90e3cdf2 | 3313 | |
| cd285db5 AM |
3314 | if (opd != NULL) |
| 3315 | for (; i < symcount; ++i) | |
| 3316 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3317 | break; | |
| 699733f6 | 3318 | opdsymend = i; |
| 90e3cdf2 | 3319 | |
| 699733f6 AM |
3320 | for (; i < symcount; ++i) |
| 3321 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3322 | != (SEC_CODE | SEC_ALLOC)) | |
| 3323 | break; | |
| 3324 | symcount = i; | |
| 3325 | ||
| c9727e01 | 3326 | count = 0; |
| 90e3cdf2 | 3327 | |
| 699733f6 | 3328 | if (relocatable) |
| 90e3cdf2 | 3329 | { |
| 699733f6 AM |
3330 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3331 | arelent *r; | |
| 3332 | size_t size; | |
| 3333 | long relcount; | |
| 90e3cdf2 | 3334 | |
| 468392fb AM |
3335 | if (opdsymend == secsymend) |
| 3336 | goto done; | |
| 3337 | ||
| 699733f6 | 3338 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3339 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3340 | if (relcount == 0) |
| c9727e01 | 3341 | goto done; |
| 90e3cdf2 | 3342 | |
| 7356fed5 AM |
3343 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3344 | { | |
| 3345 | count = -1; | |
| 3346 | goto done; | |
| 3347 | } | |
| 3348 | ||
| 699733f6 | 3349 | size = 0; |
| 595da8c5 | 3350 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3351 | { |
| 3352 | asymbol *sym; | |
| 90e3cdf2 | 3353 | |
| 595da8c5 | 3354 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3355 | && r->address < syms[i]->value + opd->vma) |
| 3356 | ++r; | |
| 90e3cdf2 | 3357 | |
| 595da8c5 | 3358 | if (r == opd->relocation + relcount) |
| 699733f6 | 3359 | break; |
| 90e3cdf2 | 3360 | |
| 699733f6 AM |
3361 | if (r->address != syms[i]->value + opd->vma) |
| 3362 | continue; | |
| 90e3cdf2 | 3363 | |
| 699733f6 AM |
3364 | if (r->howto->type != R_PPC64_ADDR64) |
| 3365 | continue; | |
| 90e3cdf2 | 3366 | |
| 699733f6 AM |
3367 | sym = *r->sym_ptr_ptr; |
| 3368 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3369 | sym->section->id, sym->value + r->addend)) | |
| 3370 | { | |
| 3371 | ++count; | |
| 3372 | size += sizeof (asymbol); | |
| 3373 | size += strlen (syms[i]->name) + 2; | |
| 3374 | } | |
| 3375 | } | |
| 90e3cdf2 | 3376 | |
| c4b0b099 AM |
3377 | if (size == 0) |
| 3378 | goto done; | |
| 699733f6 AM |
3379 | s = *ret = bfd_malloc (size); |
| 3380 | if (s == NULL) | |
| 3381 | { | |
| 7356fed5 | 3382 | count = -1; |
| c9727e01 | 3383 | goto done; |
| 699733f6 | 3384 | } |
| 90e3cdf2 | 3385 | |
| 699733f6 | 3386 | names = (char *) (s + count); |
| 90e3cdf2 | 3387 | |
| 595da8c5 | 3388 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3389 | { |
| 699733f6 | 3390 | asymbol *sym; |
| 90e3cdf2 | 3391 | |
| 595da8c5 | 3392 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3393 | && r->address < syms[i]->value + opd->vma) |
| 3394 | ++r; | |
| 90e3cdf2 | 3395 | |
| 595da8c5 | 3396 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3397 | break; |
| 3398 | ||
| 3399 | if (r->address != syms[i]->value + opd->vma) | |
| 3400 | continue; | |
| 3401 | ||
| 3402 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3403 | continue; | |
| 90e3cdf2 | 3404 | |
| 699733f6 AM |
3405 | sym = *r->sym_ptr_ptr; |
| 3406 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3407 | sym->section->id, sym->value + r->addend)) | |
| 3408 | { | |
| 3409 | size_t len; | |
| 3410 | ||
| 3411 | *s = *syms[i]; | |
| 6ba2a415 | 3412 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3413 | s->section = sym->section; |
| 3414 | s->value = sym->value + r->addend; | |
| 3415 | s->name = names; | |
| 3416 | *names++ = '.'; | |
| 3417 | len = strlen (syms[i]->name); | |
| 3418 | memcpy (names, syms[i]->name, len + 1); | |
| 3419 | names += len + 1; | |
| 6f610d07 UW |
3420 | /* Have udata.p point back to the original symbol this |
| 3421 | synthetic symbol was derived from. */ | |
| 3422 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3423 | s++; |
| 3424 | } | |
| 3425 | } | |
| 3426 | } | |
| 3427 | else | |
| 90e3cdf2 | 3428 | { |
| 468392fb | 3429 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3430 | bfd_byte *contents = NULL; |
| 699733f6 | 3431 | size_t size; |
| 468392fb AM |
3432 | long plt_count = 0; |
| 3433 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3434 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3435 | arelent *p; | |
| 90e3cdf2 | 3436 | |
| ee67d69a | 3437 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3438 | { |
| c4b0b099 AM |
3439 | free_contents_and_exit_err: |
| 3440 | count = -1; | |
| ee67d69a | 3441 | free_contents_and_exit: |
| 699733f6 | 3442 | if (contents) |
| ee67d69a | 3443 | free (contents); |
| c9727e01 | 3444 | goto done; |
| 699733f6 | 3445 | } |
| 90e3cdf2 | 3446 | |
| 699733f6 AM |
3447 | size = 0; |
| 3448 | for (i = secsymend; i < opdsymend; ++i) | |
| 3449 | { | |
| 3450 | bfd_vma ent; | |
| 90e3cdf2 | 3451 | |
| 5ef11c02 AM |
3452 | /* Ignore bogus symbols. */ |
| 3453 | if (syms[i]->value > opd->size - 8) | |
| 3454 | continue; | |
| 3455 | ||
| 699733f6 AM |
3456 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3457 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3458 | { | |
| 3459 | ++count; | |
| 3460 | size += sizeof (asymbol); | |
| 3461 | size += strlen (syms[i]->name) + 2; | |
| 3462 | } | |
| 3463 | } | |
| 90e3cdf2 | 3464 | |
| 468392fb | 3465 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3466 | if (dyn_count != 0 |
| 3467 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3468 | { |
| 3469 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3470 | size_t extdynsize; | |
| 3471 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3472 | ||
| 3473 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3474 | goto free_contents_and_exit_err; |
| 468392fb AM |
3475 | |
| 3476 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3477 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3478 | ||
| 3479 | extdyn = dynbuf; | |
| 3480 | extdynend = extdyn + dynamic->size; | |
| 3481 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3482 | { | |
| 3483 | Elf_Internal_Dyn dyn; | |
| 3484 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3485 | ||
| 3486 | if (dyn.d_tag == DT_NULL) | |
| 3487 | break; | |
| 3488 | ||
| 3489 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3490 | { | |
| b9e5796b AM |
3491 | /* The first glink stub starts at offset 32; see |
| 3492 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3493 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3494 | /* The .glink section usually does not survive the final |
| 3495 | link; search for the section (usually .text) where the | |
| 3496 | glink stubs now reside. */ | |
| 3497 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3498 | &glink_vma); | |
| 3499 | break; | |
| 3500 | } | |
| 3501 | } | |
| 3502 | ||
| 3503 | free (dynbuf); | |
| 3504 | } | |
| 3505 | ||
| 3506 | if (glink != NULL) | |
| 3507 | { | |
| 3508 | /* Determine __glink trampoline by reading the relative branch | |
| 3509 | from the first glink stub. */ | |
| 3510 | bfd_byte buf[4]; | |
| b9e5796b AM |
3511 | unsigned int off = 0; |
| 3512 | ||
| 3513 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3514 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3515 | { |
| 3516 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3517 | insn ^= B_DOT; | |
| 3518 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3519 | { |
| 3520 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3521 | break; | |
| 3522 | } | |
| 3523 | off += 4; | |
| 3524 | if (off > 4) | |
| 3525 | break; | |
| 468392fb AM |
3526 | } |
| 3527 | ||
| 3528 | if (resolv_vma) | |
| 3529 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3530 | |
| 066ee829 AM |
3531 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3532 | if (relplt != NULL) | |
| 3533 | { | |
| 3534 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3535 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3536 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3537 | |
| 066ee829 AM |
3538 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3539 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3540 | |
| 066ee829 AM |
3541 | p = relplt->relocation; |
| 3542 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3543 | { |
| 3544 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3545 | if (p->addend != 0) | |
| 3546 | size += sizeof ("+0x") - 1 + 16; | |
| 3547 | } | |
| 066ee829 | 3548 | } |
| 468392fb AM |
3549 | } |
| 3550 | ||
| c4b0b099 AM |
3551 | if (size == 0) |
| 3552 | goto free_contents_and_exit; | |
| 699733f6 AM |
3553 | s = *ret = bfd_malloc (size); |
| 3554 | if (s == NULL) | |
| c4b0b099 | 3555 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3556 | |
| 468392fb | 3557 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3558 | |
| 699733f6 | 3559 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3560 | { |
| 699733f6 | 3561 | bfd_vma ent; |
| 90e3cdf2 | 3562 | |
| 5ef11c02 AM |
3563 | if (syms[i]->value > opd->size - 8) |
| 3564 | continue; | |
| 3565 | ||
| 699733f6 AM |
3566 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3567 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3568 | { |
| c9727e01 | 3569 | long lo, hi; |
| 699733f6 | 3570 | size_t len; |
| c9727e01 | 3571 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3572 | |
| 699733f6 AM |
3573 | *s = *syms[i]; |
| 3574 | lo = codesecsym; | |
| 3575 | hi = codesecsymend; | |
| 3576 | while (lo < hi) | |
| 3577 | { | |
| c9727e01 | 3578 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3579 | if (syms[mid]->section->vma < ent) |
| 3580 | lo = mid + 1; | |
| 3581 | else if (syms[mid]->section->vma > ent) | |
| 3582 | hi = mid; | |
| 3583 | else | |
| c9727e01 AM |
3584 | { |
| 3585 | sec = syms[mid]->section; | |
| 3586 | break; | |
| 3587 | } | |
| 699733f6 AM |
3588 | } |
| 3589 | ||
| c9727e01 | 3590 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3591 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3592 | |
| 3593 | for (; sec != NULL; sec = sec->next) | |
| 3594 | { | |
| 3595 | if (sec->vma > ent) | |
| 3596 | break; | |
| 63524580 JK |
3597 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3598 | info file. */ | |
| 3599 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3600 | break; |
| 3601 | if ((sec->flags & SEC_CODE) != 0) | |
| 3602 | s->section = sec; | |
| 3603 | } | |
| 6ba2a415 | 3604 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3605 | s->value = ent - s->section->vma; |
| 3606 | s->name = names; | |
| 3607 | *names++ = '.'; | |
| 3608 | len = strlen (syms[i]->name); | |
| 3609 | memcpy (names, syms[i]->name, len + 1); | |
| 3610 | names += len + 1; | |
| 6f610d07 UW |
3611 | /* Have udata.p point back to the original symbol this |
| 3612 | synthetic symbol was derived from. */ | |
| 3613 | s->udata.p = syms[i]; | |
| 699733f6 | 3614 | s++; |
| 90e3cdf2 | 3615 | } |
| 90e3cdf2 | 3616 | } |
| 699733f6 | 3617 | free (contents); |
| 468392fb AM |
3618 | |
| 3619 | if (glink != NULL && relplt != NULL) | |
| 3620 | { | |
| 3621 | if (resolv_vma) | |
| 3622 | { | |
| 3623 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3624 | memset (s, 0, sizeof *s); |
| 468392fb | 3625 | s->the_bfd = abfd; |
| 6ba2a415 | 3626 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3627 | s->section = glink; |
| 3628 | s->value = resolv_vma - glink->vma; | |
| 3629 | s->name = names; | |
| 3630 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3631 | names += sizeof ("__glink_PLTresolve"); | |
| 3632 | s++; | |
| 3633 | count++; | |
| 3634 | } | |
| 3635 | ||
| 3636 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3637 | stub rather than on the glink branch table entry. The | |
| 3638 | objdump disassembler would then use a sensible symbol | |
| 3639 | name on plt calls. The difficulty in doing so is | |
| 3640 | a) finding the stubs, and, | |
| 3641 | b) matching stubs against plt entries, and, | |
| 3642 | c) there can be multiple stubs for a given plt entry. | |
| 3643 | ||
| 3644 | Solving (a) could be done by code scanning, but older | |
| 3645 | ppc64 binaries used different stubs to current code. | |
| 3646 | (b) is the tricky one since you need to known the toc | |
| 3647 | pointer for at least one function that uses a pic stub to | |
| 3648 | be able to calculate the plt address referenced. | |
| 3649 | (c) means gdb would need to set multiple breakpoints (or | |
| 3650 | find the glink branch itself) when setting breakpoints | |
| 3651 | for pending shared library loads. */ | |
| 3652 | p = relplt->relocation; | |
| 3653 | for (i = 0; i < plt_count; i++, p++) | |
| 3654 | { | |
| 3655 | size_t len; | |
| 3656 | ||
| 3657 | *s = **p->sym_ptr_ptr; | |
| 3658 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3659 | we are defining a symbol, ensure one of them is set. */ | |
| 3660 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3661 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3662 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3663 | s->section = glink; |
| 3664 | s->value = glink_vma - glink->vma; | |
| 3665 | s->name = names; | |
| 3666 | s->udata.p = NULL; | |
| 3667 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3668 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3669 | names += len; | |
| e054468f AM |
3670 | if (p->addend != 0) |
| 3671 | { | |
| 3672 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3673 | names += sizeof ("+0x") - 1; | |
| 3674 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3675 | names += strlen (names); | |
| 3676 | } | |
| 468392fb AM |
3677 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3678 | names += sizeof ("@plt"); | |
| 3679 | s++; | |
| b9e5796b AM |
3680 | if (abi < 2) |
| 3681 | { | |
| 3682 | glink_vma += 8; | |
| 3683 | if (i >= 0x8000) | |
| 3684 | glink_vma += 4; | |
| 3685 | } | |
| 3686 | else | |
| 468392fb AM |
3687 | glink_vma += 4; |
| 3688 | } | |
| 3689 | count += plt_count; | |
| 3690 | } | |
| 90e3cdf2 JJ |
3691 | } |
| 3692 | ||
| c9727e01 | 3693 | done: |
| a7535cf3 | 3694 | free (syms); |
| 90e3cdf2 JJ |
3695 | return count; |
| 3696 | } | |
| 5bd4f169 | 3697 | \f |
| 65f38f15 AM |
3698 | /* The following functions are specific to the ELF linker, while |
| 3699 | functions above are used generally. Those named ppc64_elf_* are | |
| 3700 | called by the main ELF linker code. They appear in this file more | |
| 3701 | or less in the order in which they are called. eg. | |
| 3702 | ppc64_elf_check_relocs is called early in the link process, | |
| 3703 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3704 | called. |
| 3705 | ||
| 3706 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3707 | functions have both a function code symbol and a function descriptor | |
| 3708 | symbol. A call to foo in a relocatable object file looks like: | |
| 3709 | ||
| 3710 | . .text | |
| 3711 | . x: | |
| 3712 | . bl .foo | |
| 3713 | . nop | |
| 3714 | ||
| 3715 | The function definition in another object file might be: | |
| 3716 | ||
| 3717 | . .section .opd | |
| 3718 | . foo: .quad .foo | |
| 3719 | . .quad .TOC.@tocbase | |
| 3720 | . .quad 0 | |
| 3721 | . | |
| 3722 | . .text | |
| 3723 | . .foo: blr | |
| 3724 | ||
| 3725 | When the linker resolves the call during a static link, the branch | |
| 3726 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3727 | If the function definition is in a shared library, things are a little | |
| 3728 | different: The call goes via a plt call stub, the opd information gets | |
| 3729 | copied to the plt, and the linker patches the nop. | |
| 3730 | ||
| 3731 | . x: | |
| 3732 | . bl .foo_stub | |
| 3733 | . ld 2,40(1) | |
| 3734 | . | |
| 3735 | . | |
| 3736 | . .foo_stub: | |
| 71a39c98 AM |
3737 | . std 2,40(1) # in practice, the call stub |
| 3738 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3739 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3740 | . ld 12,0(11) | |
| 3741 | . ld 2,8(11) | |
| 3742 | . mtctr 12 | |
| 3743 | . ld 11,16(11) | |
| e86ce104 AM |
3744 | . bctr |
| 3745 | . | |
| 3746 | . .section .plt | |
| 3747 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3748 | ||
| 3749 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3750 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3751 | copying. | |
| 3752 | ||
| 3753 | What are the difficulties here? Well, firstly, the relocations | |
| 3754 | examined by the linker in check_relocs are against the function code | |
| 3755 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3756 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3757 | to carefully copy dynamic link information from one symbol to the other. | |
| 3758 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3759 | symbol as is normal for most other backends. We need foo dynamic | |
| 3760 | instead, at least for an application final link. However, when | |
| 3761 | creating a shared library containing foo, we need to have both symbols | |
| 3762 | dynamic so that references to .foo are satisfied during the early | |
| 3763 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3764 | definition from some other object, eg. a static library. |
| 3765 | ||
| 3766 | Update: As of August 2004, we support a new convention. Function | |
| 3767 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3768 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3769 | |
| 1d483afe | 3770 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3771 | selects those that must be copied when linking a shared library, |
| 3772 | even when the symbol is local. */ | |
| 65f38f15 | 3773 | |
| 1d483afe AM |
3774 | static int |
| 3775 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3776 | enum elf_ppc64_reloc_type r_type) | |
| 3777 | { | |
| 3778 | switch (r_type) | |
| 3779 | { | |
| 3780 | default: | |
| 3781 | return 1; | |
| 3782 | ||
| 3783 | case R_PPC64_REL32: | |
| 3784 | case R_PPC64_REL64: | |
| 3785 | case R_PPC64_REL30: | |
| 3786 | return 0; | |
| 3787 | ||
| 3788 | case R_PPC64_TPREL16: | |
| 3789 | case R_PPC64_TPREL16_LO: | |
| 3790 | case R_PPC64_TPREL16_HI: | |
| 3791 | case R_PPC64_TPREL16_HA: | |
| 3792 | case R_PPC64_TPREL16_DS: | |
| 3793 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3794 | case R_PPC64_TPREL16_HIGH: |
| 3795 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3796 | case R_PPC64_TPREL16_HIGHER: |
| 3797 | case R_PPC64_TPREL16_HIGHERA: | |
| 3798 | case R_PPC64_TPREL16_HIGHEST: | |
| 3799 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3800 | case R_PPC64_TPREL64: | |
| 0e1862bb | 3801 | return !bfd_link_executable (info); |
| 1d483afe AM |
3802 | } |
| 3803 | } | |
| 65f38f15 | 3804 | |
| f4656909 AM |
3805 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3806 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3807 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3808 | shared lib. With code that gcc generates, it's vital that this be |
| 3809 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3810 | the address of a function descriptor, which resides in the .opd | |
| 3811 | section. gcc uses the descriptor directly rather than going via the | |
| 3812 | GOT as some other ABI's do, which means that initialized function | |
| 3813 | pointers must reference the descriptor. Thus, a function pointer | |
| 3814 | initialized to the address of a function in a shared library will | |
| 3815 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3816 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3817 | presents a problem as a plt entry for that function is also |
| 3818 | initialized from the function descriptor symbol and the copy reloc | |
| 3819 | may not be initialized first. */ | |
| a23b6845 | 3820 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3821 | |
| 721956f4 | 3822 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3823 | string. */ |
| 3824 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3825 | |
| 3826 | /* Linker stubs. | |
| 3827 | ppc_stub_long_branch: | |
| 3828 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3829 | destination, but a 24 bit branch in a stub section will reach. | |
| 3830 | . b dest | |
| 3831 | ||
| 3832 | ppc_stub_plt_branch: | |
| 3833 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3834 | reach its destination. | |
| 71a39c98 AM |
3835 | . addis %r11,%r2,xxx@toc@ha |
| 3836 | . ld %r12,xxx@toc@l(%r11) | |
| 3837 | . mtctr %r12 | |
| 721956f4 AM |
3838 | . bctr |
| 3839 | ||
| 3840 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3841 | Used to call a function in a shared library. If it so happens that |
| 3842 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3843 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3844 | . std %r2,40(%r1) |
| 71a39c98 AM |
3845 | . addis %r11,%r2,xxx@toc@ha |
| 3846 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3847 | . mtctr %r12 | |
| 3848 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3849 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3850 | . bctr |
| ad8e1ba5 AM |
3851 | |
| 3852 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3853 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3854 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3855 | . std %r2,40(%r1) | |
| 3856 | . addis %r2,%r2,off@ha | |
| 3857 | . addi %r2,%r2,off@l | |
| 3858 | . b dest | |
| 3859 | ||
| 3860 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3861 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3862 | . addis %r11,%r2,xxx@toc@ha |
| 3863 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3864 | . addis %r2,%r2,off@ha |
| 3865 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3866 | . mtctr %r12 |
| ad8e1ba5 | 3867 | . bctr |
| ac2df442 AM |
3868 | |
| 3869 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3870 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3871 | */ |
| 3872 | ||
| 3873 | enum ppc_stub_type { | |
| 3874 | ppc_stub_none, | |
| 3875 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3876 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3877 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3878 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3879 | ppc_stub_plt_call, |
| 7341d5e2 | 3880 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3881 | ppc_stub_global_entry, |
| 3882 | ppc_stub_save_res | |
| 721956f4 AM |
3883 | }; |
| 3884 | ||
| 6f20ed8a AM |
3885 | /* Information on stub grouping. */ |
| 3886 | struct map_stub | |
| 3887 | { | |
| 3888 | /* The stub section. */ | |
| 3889 | asection *stub_sec; | |
| 3890 | /* This is the section to which stubs in the group will be attached. */ | |
| 3891 | asection *link_sec; | |
| a4b6fadd AM |
3892 | /* Next group. */ |
| 3893 | struct map_stub *next; | |
| 3894 | /* Whether to emit a copy of register save/restore functions in this | |
| 3895 | group. */ | |
| 3896 | int needs_save_res; | |
| 6f20ed8a AM |
3897 | }; |
| 3898 | ||
| 721956f4 AM |
3899 | struct ppc_stub_hash_entry { |
| 3900 | ||
| 3901 | /* Base hash table entry structure. */ | |
| 3902 | struct bfd_hash_entry root; | |
| 3903 | ||
| ad8e1ba5 AM |
3904 | enum ppc_stub_type stub_type; |
| 3905 | ||
| 6f20ed8a AM |
3906 | /* Group information. */ |
| 3907 | struct map_stub *group; | |
| 721956f4 AM |
3908 | |
| 3909 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3910 | bfd_vma stub_offset; | |
| 3911 | ||
| 3912 | /* Given the symbol's value and its section we can determine its final | |
| 3913 | value when building the stubs (so the stub knows where to jump. */ | |
| 3914 | bfd_vma target_value; | |
| 3915 | asection *target_section; | |
| 3916 | ||
| 721956f4 AM |
3917 | /* The symbol table entry, if any, that this was derived from. */ |
| 3918 | struct ppc_link_hash_entry *h; | |
| e054468f | 3919 | struct plt_entry *plt_ent; |
| 721956f4 | 3920 | |
| 6911b7dc AM |
3921 | /* Symbol st_other. */ |
| 3922 | unsigned char other; | |
| 721956f4 AM |
3923 | }; |
| 3924 | ||
| 3925 | struct ppc_branch_hash_entry { | |
| 3926 | ||
| 3927 | /* Base hash table entry structure. */ | |
| 3928 | struct bfd_hash_entry root; | |
| 3929 | ||
| c456f082 | 3930 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3931 | unsigned int offset; |
| 3932 | ||
| 3933 | /* Generation marker. */ | |
| 3934 | unsigned int iter; | |
| 3935 | }; | |
| 65f38f15 | 3936 | |
| 19e08130 AM |
3937 | /* Used to track dynamic relocations for local symbols. */ |
| 3938 | struct ppc_dyn_relocs | |
| 3939 | { | |
| 3940 | struct ppc_dyn_relocs *next; | |
| 3941 | ||
| 3942 | /* The input section of the reloc. */ | |
| 3943 | asection *sec; | |
| 3944 | ||
| 3945 | /* Total number of relocs copied for the input section. */ | |
| 3946 | unsigned int count : 31; | |
| 3947 | ||
| 3948 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3949 | unsigned int ifunc : 1; | |
| 3950 | }; | |
| 3951 | ||
| 65f38f15 AM |
3952 | struct ppc_link_hash_entry |
| 3953 | { | |
| 3954 | struct elf_link_hash_entry elf; | |
| 3955 | ||
| b3fac117 AM |
3956 | union { |
| 3957 | /* A pointer to the most recently used stub hash entry against this | |
| 3958 | symbol. */ | |
| 3959 | struct ppc_stub_hash_entry *stub_cache; | |
| 3960 | ||
| 3961 | /* A pointer to the next symbol starting with a '.' */ | |
| 3962 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3963 | } u; | |
| 721956f4 | 3964 | |
| 65f38f15 | 3965 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3966 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3967 | |
| d311bc8b AM |
3968 | /* Chain of aliases referring to a weakdef. */ |
| 3969 | struct ppc_link_hash_entry *weakref; | |
| 3970 | ||
| 721956f4 | 3971 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3972 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3973 | |
| e86ce104 AM |
3974 | /* Flag function code and descriptor symbols. */ |
| 3975 | unsigned int is_func:1; | |
| 3976 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3977 | unsigned int fake:1; |
| 411e1bfb | 3978 | |
| c5614fa4 AM |
3979 | /* Whether global opd/toc sym has been adjusted or not. |
| 3980 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3981 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3982 | unsigned int adjust_done:1; |
| 3983 | ||
| a4b6fadd AM |
3984 | /* Set if this is an out-of-line register save/restore function, |
| 3985 | with non-standard calling convention. */ | |
| 3986 | unsigned int save_res:1; | |
| 3987 | ||
| 411e1bfb | 3988 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3989 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3990 | corresponding relocs are encountered during check_relocs. | |
| 3991 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3992 | indicate the corresponding GOT entry type is not needed. | |
| 3993 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3994 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3995 | just for convenience in distinguishing the two cases. */ | |
| 3996 | #define TLS_GD 1 /* GD reloc. */ | |
| 3997 | #define TLS_LD 2 /* LD reloc. */ | |
| 3998 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3999 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4000 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4001 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4002 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4003 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4004 | unsigned char tls_mask; |
| 65f38f15 AM |
4005 | }; |
| 4006 | ||
| 4007 | /* ppc64 ELF linker hash table. */ | |
| 4008 | ||
| 4009 | struct ppc_link_hash_table | |
| 4010 | { | |
| 4011 | struct elf_link_hash_table elf; | |
| 4012 | ||
| 721956f4 AM |
4013 | /* The stub hash table. */ |
| 4014 | struct bfd_hash_table stub_hash_table; | |
| 4015 | ||
| 4016 | /* Another hash table for plt_branch stubs. */ | |
| 4017 | struct bfd_hash_table branch_hash_table; | |
| 4018 | ||
| 3b421ab3 AM |
4019 | /* Hash table for function prologue tocsave. */ |
| 4020 | htab_t tocsave_htab; | |
| 4021 | ||
| e7d1c40c AM |
4022 | /* Various options and other info passed from the linker. */ |
| 4023 | struct ppc64_elf_params *params; | |
| 721956f4 | 4024 | |
| 6f20ed8a AM |
4025 | /* The size of sec_info below. */ |
| 4026 | unsigned int sec_info_arr_size; | |
| 4027 | ||
| 4028 | /* Per-section array of extra section info. Done this way rather | |
| 4029 | than as part of ppc64_elf_section_data so we have the info for | |
| 4030 | non-ppc64 sections. */ | |
| 4031 | struct | |
| 4032 | { | |
| 4033 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4034 | bfd_vma toc_off; |
| 6f20ed8a AM |
4035 | |
| 4036 | union | |
| 4037 | { | |
| 4038 | /* The section group that this section belongs to. */ | |
| 4039 | struct map_stub *group; | |
| 4040 | /* A temp section list pointer. */ | |
| 4041 | asection *list; | |
| 4042 | } u; | |
| 4043 | } *sec_info; | |
| 721956f4 | 4044 | |
| a4b6fadd AM |
4045 | /* Linked list of groups. */ |
| 4046 | struct map_stub *group; | |
| 4047 | ||
| ad8e1ba5 AM |
4048 | /* Temp used when calculating TOC pointers. */ |
| 4049 | bfd_vma toc_curr; | |
| bf102f86 AM |
4050 | bfd *toc_bfd; |
| 4051 | asection *toc_first_sec; | |
| ad8e1ba5 | 4052 | |
| b3fac117 AM |
4053 | /* Used when adding symbols. */ |
| 4054 | struct ppc_link_hash_entry *dot_syms; | |
| 4055 | ||
| 33e44f2e | 4056 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4057 | asection *glink; |
| 82bd7b59 | 4058 | asection *sfpr; |
| 4ce794b7 AM |
4059 | asection *brlt; |
| 4060 | asection *relbrlt; | |
| 58d180e8 | 4061 | asection *glink_eh_frame; |
| ec338859 | 4062 | |
| 8387904d AM |
4063 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4064 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4065 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4066 | |
| 927be08e AM |
4067 | /* The size of reliplt used by got entry relocs. */ |
| 4068 | bfd_size_type got_reli_size; | |
| 4069 | ||
| 9b5ecbd0 | 4070 | /* Statistics. */ |
| 7341d5e2 | 4071 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4072 | |
| ee75fd95 AM |
4073 | /* Number of stubs against global syms. */ |
| 4074 | unsigned long stub_globals; | |
| 4075 | ||
| ee67d69a AM |
4076 | /* Set if we're linking code with function descriptors. */ |
| 4077 | unsigned int opd_abi:1; | |
| 4078 | ||
| 4c52953f | 4079 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4080 | unsigned int do_multi_toc:1; |
| 4c52953f | 4081 | unsigned int multi_toc_needed:1; |
| 927be08e | 4082 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4083 | unsigned int do_toc_opt:1; |
| 4c52953f | 4084 | |
| 5d1634d7 | 4085 | /* Set on error. */ |
| 99877b66 | 4086 | unsigned int stub_error:1; |
| 721956f4 | 4087 | |
| 8c5b4e52 AM |
4088 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4089 | unsigned int need_func_desc_adj:1; | |
| 721956f4 AM |
4090 | |
| 4091 | /* Incremented every time we size stubs. */ | |
| 4092 | unsigned int stub_iteration; | |
| 5d1634d7 | 4093 | |
| 87d72d41 AM |
4094 | /* Small local sym cache. */ |
| 4095 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4096 | }; |
| 4097 | ||
| 4c52953f AM |
4098 | /* Rename some of the generic section flags to better document how they |
| 4099 | are used here. */ | |
| b0dddeec AM |
4100 | |
| 4101 | /* Nonzero if this section has TLS related relocations. */ | |
| 4102 | #define has_tls_reloc sec_flg0 | |
| 4103 | ||
| 4104 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4105 | #define has_tls_get_addr_call sec_flg1 | |
| 4106 | ||
| 4107 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4108 | #define has_toc_reloc sec_flg2 | |
| 4109 | ||
| 4110 | /* Nonzero if this section has a call to another section that uses | |
| 4111 | the toc or got. */ | |
| d77c8a4b | 4112 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4113 | |
| 4114 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4115 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4116 | #define call_check_done sec_flg5 |
| 4c52953f | 4117 | |
| 65f38f15 AM |
4118 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4119 | ||
| 4120 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4121 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4122 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4123 | |
| 721956f4 AM |
4124 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4125 | ((struct ppc_stub_hash_entry *) \ | |
| 4126 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4127 | ||
| 4128 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4129 | ((struct ppc_branch_hash_entry *) \ | |
| 4130 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4131 | ||
| 4132 | /* Create an entry in the stub hash table. */ | |
| 4133 | ||
| 4134 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4135 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4136 | struct bfd_hash_table *table, | |
| 4137 | const char *string) | |
| 721956f4 AM |
4138 | { |
| 4139 | /* Allocate the structure if it has not already been allocated by a | |
| 4140 | subclass. */ | |
| 4141 | if (entry == NULL) | |
| 4142 | { | |
| 4143 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4144 | if (entry == NULL) | |
| 4145 | return entry; | |
| 4146 | } | |
| 4147 | ||
| 4148 | /* Call the allocation method of the superclass. */ | |
| 4149 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4150 | if (entry != NULL) | |
| 4151 | { | |
| 4152 | struct ppc_stub_hash_entry *eh; | |
| 4153 | ||
| 4154 | /* Initialize the local fields. */ | |
| 4155 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4156 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4157 | eh->group = NULL; |
| 721956f4 AM |
4158 | eh->stub_offset = 0; |
| 4159 | eh->target_value = 0; | |
| 4160 | eh->target_section = NULL; | |
| 721956f4 | 4161 | eh->h = NULL; |
| 6911b7dc | 4162 | eh->plt_ent = NULL; |
| 6911b7dc | 4163 | eh->other = 0; |
| 721956f4 AM |
4164 | } |
| 4165 | ||
| 4166 | return entry; | |
| 4167 | } | |
| 4168 | ||
| 4169 | /* Create an entry in the branch hash table. */ | |
| 4170 | ||
| 4171 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4172 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4173 | struct bfd_hash_table *table, | |
| 4174 | const char *string) | |
| 721956f4 AM |
4175 | { |
| 4176 | /* Allocate the structure if it has not already been allocated by a | |
| 4177 | subclass. */ | |
| 4178 | if (entry == NULL) | |
| 4179 | { | |
| 4180 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4181 | if (entry == NULL) | |
| 4182 | return entry; | |
| 4183 | } | |
| 4184 | ||
| 4185 | /* Call the allocation method of the superclass. */ | |
| 4186 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4187 | if (entry != NULL) | |
| 4188 | { | |
| 4189 | struct ppc_branch_hash_entry *eh; | |
| 4190 | ||
| 4191 | /* Initialize the local fields. */ | |
| 4192 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4193 | eh->offset = 0; | |
| 4194 | eh->iter = 0; | |
| 4195 | } | |
| 4196 | ||
| 4197 | return entry; | |
| 4198 | } | |
| 4199 | ||
| 65f38f15 AM |
4200 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4201 | ||
| 4202 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4203 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4204 | struct bfd_hash_table *table, | |
| 4205 | const char *string) | |
| 65f38f15 AM |
4206 | { |
| 4207 | /* Allocate the structure if it has not already been allocated by a | |
| 4208 | subclass. */ | |
| 4209 | if (entry == NULL) | |
| 4210 | { | |
| 4211 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4212 | if (entry == NULL) | |
| 4213 | return entry; | |
| 4214 | } | |
| 4215 | ||
| 4216 | /* Call the allocation method of the superclass. */ | |
| 4217 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4218 | if (entry != NULL) | |
| 4219 | { | |
| 4220 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4221 | ||
| b3fac117 | 4222 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4223 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4224 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4225 | ||
| 4226 | /* When making function calls, old ABI code references function entry | |
| 4227 | points (dot symbols), while new ABI code references the function | |
| 4228 | descriptor symbol. We need to make any combination of reference and | |
| 4229 | definition work together, without breaking archive linking. | |
| 4230 | ||
| 4231 | For a defined function "foo" and an undefined call to "bar": | |
| 4232 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4233 | "bar" too). | |
| 4234 | A new object defines "foo" and references "bar". | |
| 4235 | ||
| 4236 | A new object thus has no problem with its undefined symbols being | |
| 4237 | satisfied by definitions in an old object. On the other hand, the | |
| 4238 | old object won't have ".bar" satisfied by a new object. | |
| 4239 | ||
| 4240 | Keep a list of newly added dot-symbols. */ | |
| 4241 | ||
| 4242 | if (string[0] == '.') | |
| 4243 | { | |
| 4244 | struct ppc_link_hash_table *htab; | |
| 4245 | ||
| 4246 | htab = (struct ppc_link_hash_table *) table; | |
| 4247 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4248 | htab->dot_syms = eh; | |
| 4249 | } | |
| 65f38f15 AM |
4250 | } |
| 4251 | ||
| 4252 | return entry; | |
| 4253 | } | |
| 4254 | ||
| 3b421ab3 AM |
4255 | struct tocsave_entry { |
| 4256 | asection *sec; | |
| 4257 | bfd_vma offset; | |
| 4258 | }; | |
| 4259 | ||
| 4260 | static hashval_t | |
| 4261 | tocsave_htab_hash (const void *p) | |
| 4262 | { | |
| 4263 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4264 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4265 | } | |
| 4266 | ||
| 4267 | static int | |
| 4268 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4269 | { | |
| 4270 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4271 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4272 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4273 | } | |
| 4274 | ||
| 68faa637 AM |
4275 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4276 | ||
| 4277 | static void | |
| d495ab0d | 4278 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4279 | { |
| d495ab0d | 4280 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4281 | |
| d495ab0d | 4282 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4283 | if (htab->tocsave_htab) |
| 4284 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4285 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4286 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4287 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4288 | } |
| 4289 | ||
| 65f38f15 AM |
4290 | /* Create a ppc64 ELF linker hash table. */ |
| 4291 | ||
| 4292 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4293 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4294 | { |
| 4295 | struct ppc_link_hash_table *htab; | |
| 4296 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4297 | ||
| 4ce794b7 | 4298 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4299 | if (htab == NULL) |
| 4300 | return NULL; | |
| 4301 | ||
| 66eb6687 | 4302 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4303 | sizeof (struct ppc_link_hash_entry), |
| 4304 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4305 | { |
| e2d34d7d | 4306 | free (htab); |
| 65f38f15 AM |
4307 | return NULL; |
| 4308 | } | |
| 4309 | ||
| 721956f4 | 4310 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4311 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4312 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4313 | { |
| d495ab0d | 4314 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4315 | return NULL; |
| 4316 | } | |
| 721956f4 AM |
4317 | |
| 4318 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4319 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4320 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4321 | { |
| 4322 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4323 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4324 | return NULL; |
| 4325 | } | |
| 721956f4 | 4326 | |
| 3b421ab3 AM |
4327 | htab->tocsave_htab = htab_try_create (1024, |
| 4328 | tocsave_htab_hash, | |
| 4329 | tocsave_htab_eq, | |
| 4330 | NULL); | |
| 4331 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4332 | { |
| d495ab0d | 4333 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4334 | return NULL; |
| 4335 | } | |
| d495ab0d | 4336 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4337 | |
| 3254fd24 AM |
4338 | /* Initializing two fields of the union is just cosmetic. We really |
| 4339 | only care about glist, but when compiled on a 32-bit host the | |
| 4340 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4341 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4342 | htab->elf.init_got_refcount.refcount = 0; |
| 4343 | htab->elf.init_got_refcount.glist = NULL; | |
| 4344 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4345 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4346 | htab->elf.init_got_offset.offset = 0; | |
| 4347 | htab->elf.init_got_offset.glist = NULL; | |
| 4348 | htab->elf.init_plt_offset.offset = 0; | |
| 4349 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4350 | |
| 65f38f15 AM |
4351 | return &htab->elf.root; |
| 4352 | } | |
| 4353 | ||
| bfeb4a28 AM |
4354 | /* Create sections for linker generated code. */ |
| 4355 | ||
| 4356 | static bfd_boolean | |
| 4357 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4358 | { | |
| 4359 | struct ppc_link_hash_table *htab; | |
| 4360 | flagword flags; | |
| 4361 | ||
| 4362 | htab = ppc_hash_table (info); | |
| 4363 | ||
| bfeb4a28 AM |
4364 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4365 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4366 | if (htab->params->save_restore_funcs) |
| 4367 | { | |
| 4368 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4369 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4370 | flags); | |
| 4371 | if (htab->sfpr == NULL | |
| 4372 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4373 | return FALSE; | |
| 4374 | } | |
| 4375 | ||
| 4376 | if (bfd_link_relocatable (info)) | |
| 4377 | return TRUE; | |
| bfeb4a28 AM |
4378 | |
| 4379 | /* Create .glink for lazy dynamic linking support. */ | |
| 4380 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4381 | flags); | |
| 4382 | if (htab->glink == NULL | |
| 4383 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4384 | return FALSE; | |
| 4385 | ||
| 4386 | if (!info->no_ld_generated_unwind_info) | |
| 4387 | { | |
| 4388 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4389 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4390 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4391 | ".eh_frame", | |
| 4392 | flags); | |
| 4393 | if (htab->glink_eh_frame == NULL | |
| 4394 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4395 | return FALSE; | |
| 4396 | } | |
| 4397 | ||
| 4398 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4399 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4400 | if (htab->elf.iplt == NULL | |
| 4401 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4402 | return FALSE; |
| 4403 | ||
| 4404 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4405 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4406 | htab->elf.irelplt |
| 4407 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4408 | if (htab->elf.irelplt == NULL | |
| 4409 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4410 | return FALSE; |
| 4411 | ||
| 4412 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4413 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4414 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4415 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4416 | flags); | |
| 4417 | if (htab->brlt == NULL | |
| 4418 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4419 | return FALSE; | |
| 4420 | ||
| 0e1862bb | 4421 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4422 | return TRUE; |
| 4423 | ||
| 4424 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4425 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4426 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4427 | ".rela.branch_lt", | |
| 4428 | flags); | |
| 4429 | if (htab->relbrlt == NULL | |
| 4430 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4431 | return FALSE; | |
| 4432 | ||
| 4433 | return TRUE; | |
| 4434 | } | |
| 4435 | ||
| e717da7e AM |
4436 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4437 | ||
| bfeb4a28 | 4438 | bfd_boolean |
| e7d1c40c AM |
4439 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4440 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4441 | { |
| 4442 | struct ppc_link_hash_table *htab; | |
| 4443 | ||
| e7d1c40c | 4444 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4445 | |
| 4446 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4447 | linker created stub bfd. This ensures that the GOT header is at | |
| 4448 | the start of the output TOC section. */ | |
| 4449 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4450 | htab->elf.dynobj = params->stub_bfd; |
| 4451 | htab->params = params; | |
| bfeb4a28 | 4452 | |
| bfeb4a28 | 4453 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4454 | } |
| 4455 | ||
| 721956f4 AM |
4456 | /* Build a name for an entry in the stub hash table. */ |
| 4457 | ||
| 4458 | static char * | |
| 4ce794b7 AM |
4459 | ppc_stub_name (const asection *input_section, |
| 4460 | const asection *sym_sec, | |
| 4461 | const struct ppc_link_hash_entry *h, | |
| 4462 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4463 | { |
| 4464 | char *stub_name; | |
| bcaa2f82 | 4465 | ssize_t len; |
| 721956f4 AM |
4466 | |
| 4467 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4468 | offsets from a sym as a branch target? In fact, we could | |
| 4469 | probably assume the addend is always zero. */ | |
| 4470 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4471 | ||
| 4472 | if (h) | |
| 4473 | { | |
| 4474 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4475 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4476 | if (stub_name == NULL) |
| 4477 | return stub_name; | |
| 4478 | ||
| bcaa2f82 AM |
4479 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4480 | input_section->id & 0xffffffff, | |
| 4481 | h->elf.root.root.string, | |
| 4482 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4483 | } |
| 4484 | else | |
| 4485 | { | |
| ad8e1ba5 | 4486 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4487 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4488 | if (stub_name == NULL) |
| 4489 | return stub_name; | |
| 4490 | ||
| bcaa2f82 AM |
4491 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4492 | input_section->id & 0xffffffff, | |
| 4493 | sym_sec->id & 0xffffffff, | |
| 4494 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4495 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4496 | } |
| bcaa2f82 | 4497 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4498 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4499 | return stub_name; |
| 4500 | } | |
| 4501 | ||
| 4502 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4503 | creating the stub name takes a bit of time. */ | |
| 4504 | ||
| 4505 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4506 | ppc_get_stub_entry (const asection *input_section, |
| 4507 | const asection *sym_sec, | |
| 039b3fef | 4508 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4509 | const Elf_Internal_Rela *rel, |
| 4510 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4511 | { |
| 4512 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4513 | struct map_stub *group; |
| 721956f4 AM |
4514 | |
| 4515 | /* If this input section is part of a group of sections sharing one | |
| 4516 | stub section, then use the id of the first section in the group. | |
| 4517 | Stub names need to include a section id, as there may well be | |
| 4518 | more than one stub used to reach say, printf, and we need to | |
| 4519 | distinguish between them. */ | |
| 6f20ed8a | 4520 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4521 | if (group == NULL) |
| 4522 | return NULL; | |
| 721956f4 | 4523 | |
| b3fac117 AM |
4524 | if (h != NULL && h->u.stub_cache != NULL |
| 4525 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4526 | && h->u.stub_cache->group == group) |
| 721956f4 | 4527 | { |
| b3fac117 | 4528 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4529 | } |
| 4530 | else | |
| 4531 | { | |
| 4532 | char *stub_name; | |
| 4533 | ||
| 6f20ed8a | 4534 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4535 | if (stub_name == NULL) |
| 4536 | return NULL; | |
| 4537 | ||
| 4538 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4539 | stub_name, FALSE, FALSE); |
| 721956f4 | 4540 | if (h != NULL) |
| b3fac117 | 4541 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4542 | |
| 4543 | free (stub_name); | |
| 4544 | } | |
| 4545 | ||
| 4546 | return stub_entry; | |
| 4547 | } | |
| 4548 | ||
| 4549 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4550 | stub entry are initialised. */ | |
| 4551 | ||
| 4552 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4553 | ppc_add_stub (const char *stub_name, |
| 4554 | asection *section, | |
| 25f53a85 | 4555 | struct bfd_link_info *info) |
| 721956f4 | 4556 | { |
| 25f53a85 | 4557 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4558 | struct map_stub *group; |
| 721956f4 AM |
4559 | asection *link_sec; |
| 4560 | asection *stub_sec; | |
| 4561 | struct ppc_stub_hash_entry *stub_entry; | |
| 4562 | ||
| 6f20ed8a AM |
4563 | group = htab->sec_info[section->id].u.group; |
| 4564 | link_sec = group->link_sec; | |
| 4565 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4566 | if (stub_sec == NULL) |
| 4567 | { | |
| 6f20ed8a AM |
4568 | size_t namelen; |
| 4569 | bfd_size_type len; | |
| 4570 | char *s_name; | |
| 721956f4 | 4571 | |
| 6f20ed8a AM |
4572 | namelen = strlen (link_sec->name); |
| 4573 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4574 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4575 | if (s_name == NULL) | |
| 4576 | return NULL; | |
| 721956f4 | 4577 | |
| 6f20ed8a AM |
4578 | memcpy (s_name, link_sec->name, namelen); |
| 4579 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4580 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4581 | if (stub_sec == NULL) | |
| 4582 | return NULL; | |
| 4583 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4584 | } |
| 4585 | ||
| 4586 | /* Enter this entry into the linker stub hash table. */ | |
| 4587 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4588 | TRUE, FALSE); |
| 721956f4 AM |
4589 | if (stub_entry == NULL) |
| 4590 | { | |
| 695344c0 | 4591 | /* xgettext:c-format */ |
| 8de848d8 | 4592 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4593 | section->owner, stub_name); |
| 721956f4 AM |
4594 | return NULL; |
| 4595 | } | |
| 4596 | ||
| 6f20ed8a | 4597 | stub_entry->group = group; |
| 721956f4 | 4598 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4599 | return stub_entry; |
| 4600 | } | |
| 4601 | ||
| e717da7e AM |
4602 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4603 | not already done. */ | |
| 65f38f15 | 4604 | |
| b34976b6 | 4605 | static bfd_boolean |
| e717da7e | 4606 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4607 | { |
| e717da7e AM |
4608 | asection *got, *relgot; |
| 4609 | flagword flags; | |
| 4610 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4611 | |
| 0c8d6e5c | 4612 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4613 | return FALSE; |
| 4dfe6ac6 NC |
4614 | if (htab == NULL) |
| 4615 | return FALSE; | |
| 0ffa91dd | 4616 | |
| 33e44f2e AM |
4617 | if (!htab->elf.sgot |
| 4618 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4619 | return FALSE; | |
| e717da7e AM |
4620 | |
| 4621 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4622 | | SEC_LINKER_CREATED); | |
| 4623 | ||
| c456f082 | 4624 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4625 | if (!got |
| e717da7e AM |
4626 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4627 | return FALSE; | |
| 65f38f15 | 4628 | |
| c456f082 AM |
4629 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4630 | flags | SEC_READONLY); | |
| e717da7e | 4631 | if (!relgot |
| e717da7e | 4632 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4633 | return FALSE; |
| e717da7e AM |
4634 | |
| 4635 | ppc64_elf_tdata (abfd)->got = got; | |
| 4636 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4637 | return TRUE; |
| 65f38f15 | 4638 | } |
| 5bd4f169 | 4639 | |
| b31867b6 AM |
4640 | /* Follow indirect and warning symbol links. */ |
| 4641 | ||
| 4642 | static inline struct bfd_link_hash_entry * | |
| 4643 | follow_link (struct bfd_link_hash_entry *h) | |
| 4644 | { | |
| 4645 | while (h->type == bfd_link_hash_indirect | |
| 4646 | || h->type == bfd_link_hash_warning) | |
| 4647 | h = h->u.i.link; | |
| 4648 | return h; | |
| 4649 | } | |
| 4650 | ||
| 4651 | static inline struct elf_link_hash_entry * | |
| 4652 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4653 | { | |
| 4654 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4655 | } | |
| 4656 | ||
| 4657 | static inline struct ppc_link_hash_entry * | |
| 4658 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4659 | { | |
| 4660 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4661 | } | |
| 4662 | ||
| 40d16e0b AM |
4663 | /* Merge PLT info on FROM with that on TO. */ |
| 4664 | ||
| 4665 | static void | |
| 4666 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4667 | struct ppc_link_hash_entry *to) | |
| 4668 | { | |
| 4669 | if (from->elf.plt.plist != NULL) | |
| 4670 | { | |
| 4671 | if (to->elf.plt.plist != NULL) | |
| 4672 | { | |
| 4673 | struct plt_entry **entp; | |
| 4674 | struct plt_entry *ent; | |
| 4675 | ||
| 4676 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4677 | { | |
| 4678 | struct plt_entry *dent; | |
| 4679 | ||
| 4680 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4681 | if (dent->addend == ent->addend) | |
| 4682 | { | |
| 4683 | dent->plt.refcount += ent->plt.refcount; | |
| 4684 | *entp = ent->next; | |
| 4685 | break; | |
| 4686 | } | |
| 4687 | if (dent == NULL) | |
| 4688 | entp = &ent->next; | |
| 4689 | } | |
| 4690 | *entp = to->elf.plt.plist; | |
| 4691 | } | |
| 4692 | ||
| 4693 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4694 | from->elf.plt.plist = NULL; | |
| 4695 | } | |
| 4696 | } | |
| 4697 | ||
| 65f38f15 AM |
4698 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4699 | ||
| 4700 | static void | |
| fcfa13d2 AM |
4701 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4702 | struct elf_link_hash_entry *dir, | |
| 4703 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4704 | { |
| 4705 | struct ppc_link_hash_entry *edir, *eind; | |
| 4706 | ||
| 4707 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4708 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4709 | ||
| c79d6685 AM |
4710 | edir->is_func |= eind->is_func; |
| 4711 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4712 | edir->tls_mask |= eind->tls_mask; | |
| 4713 | if (eind->oh != NULL) | |
| 4714 | edir->oh = ppc_follow_link (eind->oh); | |
| 4715 | ||
| e81830c5 AM |
4716 | /* If called to transfer flags for a weakdef during processing |
| 4717 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4718 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4719 | if (!(ELIMINATE_COPY_RELOCS | |
| 4720 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4721 | && edir->elf.dynamic_adjusted)) | |
| 4722 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4723 | ||
| 474436e6 | 4724 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4725 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4726 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4727 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4728 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4729 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4730 | |
| d311bc8b AM |
4731 | /* If we were called to copy over info for a weak sym, don't copy |
| 4732 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4733 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4734 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4735 | tests about a specific symbol, or affect other symbol flags which | |
| 4736 | are then tested. | |
| 4737 | Chain weakdefs so we can get from the weakdef back to an alias. | |
| 4738 | The list is circular so that we don't need to use u.weakdef as | |
| 4739 | well as this list to look at all aliases. */ | |
| 4740 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4741 | { | |
| 4742 | struct ppc_link_hash_entry *cur, *add, *next; | |
| 4743 | ||
| 4744 | add = eind; | |
| 4745 | do | |
| 4746 | { | |
| 4747 | cur = edir->weakref; | |
| 4748 | if (cur != NULL) | |
| 4749 | { | |
| 4750 | do | |
| 4751 | { | |
| 4752 | /* We can be called twice for the same symbols. | |
| 4753 | Don't make multiple loops. */ | |
| 4754 | if (cur == add) | |
| 4755 | return; | |
| 4756 | cur = cur->weakref; | |
| 4757 | } while (cur != edir); | |
| 4758 | } | |
| 4759 | next = add->weakref; | |
| 4760 | if (cur != add) | |
| 4761 | { | |
| 4762 | add->weakref = edir->weakref != NULL ? edir->weakref : edir; | |
| 4763 | edir->weakref = add; | |
| 4764 | } | |
| 4765 | add = next; | |
| 4766 | } while (add != NULL && add != eind); | |
| 4767 | return; | |
| 4768 | } | |
| 4769 | ||
| 411e1bfb | 4770 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4771 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4772 | { |
| bbd7ec4a AM |
4773 | if (edir->dyn_relocs != NULL) |
| 4774 | { | |
| 6061a67d AM |
4775 | struct elf_dyn_relocs **pp; |
| 4776 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4777 | |
| fcfa13d2 | 4778 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4779 | list. Merge any entries against the same section. */ |
| 4780 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4781 | { | |
| 6061a67d | 4782 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4783 | |
| 4784 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4785 | if (q->sec == p->sec) | |
| 4786 | { | |
| 4787 | q->pc_count += p->pc_count; | |
| 4788 | q->count += p->count; | |
| 4789 | *pp = p->next; | |
| 4790 | break; | |
| 4791 | } | |
| 4792 | if (q == NULL) | |
| 4793 | pp = &p->next; | |
| 4794 | } | |
| 4795 | *pp = edir->dyn_relocs; | |
| 4796 | } | |
| 4797 | ||
| 65f38f15 AM |
4798 | edir->dyn_relocs = eind->dyn_relocs; |
| 4799 | eind->dyn_relocs = NULL; | |
| 4800 | } | |
| 65f38f15 | 4801 | |
| 81848ca0 AM |
4802 | /* Copy over got entries that we may have already seen to the |
| 4803 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4804 | if (eind->elf.got.glist != NULL) |
| 4805 | { | |
| 4806 | if (edir->elf.got.glist != NULL) | |
| 4807 | { | |
| 4808 | struct got_entry **entp; | |
| 4809 | struct got_entry *ent; | |
| 4810 | ||
| 4811 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4812 | { | |
| 4813 | struct got_entry *dent; | |
| 4814 | ||
| 4815 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4816 | if (dent->addend == ent->addend | |
| e717da7e | 4817 | && dent->owner == ent->owner |
| 411e1bfb AM |
4818 | && dent->tls_type == ent->tls_type) |
| 4819 | { | |
| 4820 | dent->got.refcount += ent->got.refcount; | |
| 4821 | *entp = ent->next; | |
| 4822 | break; | |
| 4823 | } | |
| 4824 | if (dent == NULL) | |
| 4825 | entp = &ent->next; | |
| 4826 | } | |
| 4827 | *entp = edir->elf.got.glist; | |
| 4828 | } | |
| 4829 | ||
| 4830 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4831 | eind->elf.got.glist = NULL; | |
| 4832 | } | |
| 4833 | ||
| 4834 | /* And plt entries. */ | |
| 40d16e0b | 4835 | move_plt_plist (eind, edir); |
| 411e1bfb | 4836 | |
| fcfa13d2 | 4837 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4838 | { |
| fcfa13d2 AM |
4839 | if (edir->elf.dynindx != -1) |
| 4840 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4841 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4842 | edir->elf.dynindx = eind->elf.dynindx; |
| 4843 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4844 | eind->elf.dynindx = -1; | |
| 4845 | eind->elf.dynstr_index = 0; | |
| 4846 | } | |
| 411e1bfb AM |
4847 | } |
| 4848 | ||
| 8387904d AM |
4849 | /* Find the function descriptor hash entry from the given function code |
| 4850 | hash entry FH. Link the entries via their OH fields. */ | |
| 4851 | ||
| 4852 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4853 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4854 | { |
| 4855 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4856 | ||
| 4857 | if (fdh == NULL) | |
| 4858 | { | |
| 4859 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4860 | ||
| 4861 | fdh = (struct ppc_link_hash_entry *) | |
| 4862 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4863 | if (fdh == NULL) |
| 4864 | return fdh; | |
| 4865 | ||
| 4866 | fdh->is_func_descriptor = 1; | |
| 4867 | fdh->oh = fh; | |
| 4868 | fh->is_func = 1; | |
| 4869 | fh->oh = fdh; | |
| 8387904d AM |
4870 | } |
| 4871 | ||
| 8c5b4e52 AM |
4872 | fdh = ppc_follow_link (fdh); |
| 4873 | fdh->is_func_descriptor = 1; | |
| 4874 | fdh->oh = fh; | |
| 4875 | return fdh; | |
| 8387904d AM |
4876 | } |
| 4877 | ||
| 8c5b4e52 | 4878 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4879 | |
| 4880 | static struct ppc_link_hash_entry * | |
| 4881 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4882 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4883 | { |
| 8c5b4e52 AM |
4884 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4885 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4886 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4887 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4888 | ? BSF_WEAK | |
| 4889 | : BSF_GLOBAL); | |
| 4890 | ||
| 4891 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4892 | fh->elf.root.root.string + 1, | |
| 4893 | flags, bfd_und_section_ptr, 0, | |
| 4894 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4895 | return NULL; |
| 4896 | ||
| 4897 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4898 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4899 | fdh->fake = 1; |
| 4900 | fdh->is_func_descriptor = 1; | |
| 4901 | fdh->oh = fh; | |
| 4902 | fh->is_func = 1; | |
| 4903 | fh->oh = fdh; | |
| bb700d78 AM |
4904 | return fdh; |
| 4905 | } | |
| 4906 | ||
| 8387904d AM |
4907 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4908 | function type. */ | |
| 555cd476 AM |
4909 | |
| 4910 | static bfd_boolean | |
| c16153ae | 4911 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4912 | struct bfd_link_info *info, |
| 555cd476 | 4913 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4914 | const char **name, |
| 555cd476 AM |
4915 | flagword *flags ATTRIBUTE_UNUSED, |
| 4916 | asection **sec, | |
| b53dfeb2 | 4917 | bfd_vma *value) |
| 555cd476 | 4918 | { |
| a43942db | 4919 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4920 | && (ibfd->flags & DYNAMIC) == 0 |
| 4921 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4922 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4923 | |
| b53dfeb2 | 4924 | if (*sec != NULL |
| f1885d1e | 4925 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4926 | { |
| 4927 | asection *code_sec; | |
| 4928 | ||
| 4929 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4930 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4931 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4932 | ||
| 4933 | /* If the symbol is a function defined in .opd, and the function | |
| 4934 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4935 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4936 | && (*sec)->reloc_count != 0 |
| 4937 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4938 | FALSE) != (bfd_vma) -1 | |
| 4939 | && discarded_section (code_sec)) | |
| 4940 | { | |
| 4941 | *sec = bfd_und_section_ptr; | |
| 4942 | isym->st_shndx = SHN_UNDEF; | |
| 4943 | } | |
| 4944 | } | |
| dbd1e97e AM |
4945 | else if (*sec != NULL |
| 4946 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4947 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4948 | { | |
| 4949 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4950 | if (htab != NULL) | |
| 4951 | htab->params->object_in_toc = 1; | |
| 4952 | } | |
| 433817dd | 4953 | |
| 6911b7dc AM |
4954 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4955 | { | |
| 4956 | if (abiversion (ibfd) == 0) | |
| 4957 | set_abiversion (ibfd, 2); | |
| 4958 | else if (abiversion (ibfd) == 1) | |
| 4959 | { | |
| 4960 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4961 | " for ABI version 1\n"), name); | |
| 4962 | bfd_set_error (bfd_error_bad_value); | |
| 4963 | return FALSE; | |
| 4964 | } | |
| 4965 | } | |
| 4966 | ||
| 555cd476 AM |
4967 | return TRUE; |
| 4968 | } | |
| 4969 | ||
| 6911b7dc AM |
4970 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4971 | ||
| 4972 | static void | |
| 4973 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4974 | const Elf_Internal_Sym *isym, | |
| 4975 | bfd_boolean definition, | |
| 4976 | bfd_boolean dynamic) | |
| 4977 | { | |
| 4978 | if (definition && !dynamic) | |
| 4979 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4980 | | ELF_ST_VISIBILITY (h->other)); | |
| 4981 | } | |
| 4982 | ||
| 8c5b4e52 AM |
4983 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 4984 | we now have a real symbol. */ | |
| 4985 | ||
| 4986 | static bfd_boolean | |
| 4987 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 4988 | const Elf_Internal_Sym *isym ATTRIBUTE_UNUSED, | |
| 4989 | asection **psec ATTRIBUTE_UNUSED, | |
| 4990 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 4991 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 4992 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 4993 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 4994 | { | |
| 4995 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 4996 | return TRUE; | |
| 4997 | } | |
| 4998 | ||
| 8387904d | 4999 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5000 | inclusion of a new ABI object archive that defines "bar". |
| 5001 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5002 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5003 | |
| 5004 | static struct elf_link_hash_entry * | |
| 5005 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5006 | struct bfd_link_info *info, | |
| 5007 | const char *name) | |
| 5008 | { | |
| 5009 | struct elf_link_hash_entry *h; | |
| 5010 | char *dot_name; | |
| 5011 | size_t len; | |
| 5012 | ||
| 5013 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5014 | if (h != NULL |
| 5015 | /* Don't return this sym if it is a fake function descriptor | |
| 5016 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5017 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5018 | return h; |
| 5019 | ||
| 5020 | if (name[0] == '.') | |
| 5021 | return h; | |
| 5022 | ||
| 5023 | len = strlen (name); | |
| 5024 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5025 | if (dot_name == NULL) | |
| 5026 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 5027 | dot_name[0] = '.'; | |
| 5028 | memcpy (dot_name + 1, name, len + 1); | |
| 5029 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5030 | bfd_release (abfd, dot_name); | |
| 5031 | return h; | |
| 5032 | } | |
| 5033 | ||
| 5034 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5035 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5036 | are made weak. This stops later archive searches from including an | |
| 5037 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5038 | prevents the linker complaining about undefined symbols. |
| 5039 | We also check and correct mismatched symbol visibility here. The | |
| 5040 | most restrictive visibility of the function descriptor and the | |
| 5041 | function entry symbol is used. */ | |
| 8387904d AM |
5042 | |
| 5043 | static bfd_boolean | |
| b3fac117 | 5044 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5045 | { |
| 8387904d AM |
5046 | struct ppc_link_hash_table *htab; |
| 5047 | struct ppc_link_hash_entry *fdh; | |
| 5048 | ||
| b3fac117 AM |
5049 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5050 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5051 | |
| 8400d40d AM |
5052 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5053 | return TRUE; | |
| 5054 | ||
| b3fac117 AM |
5055 | if (eh->elf.root.root.string[0] != '.') |
| 5056 | abort (); | |
| 8387904d | 5057 | |
| b3fac117 | 5058 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5059 | if (htab == NULL) |
| 5060 | return FALSE; | |
| 5061 | ||
| b31867b6 | 5062 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5063 | if (fdh == NULL |
| 5064 | && !bfd_link_relocatable (info) | |
| 5065 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5066 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5067 | && eh->elf.ref_regular) | |
| 5068 | { | |
| 5069 | /* Make an undefined function descriptor sym, in order to | |
| 5070 | pull in an --as-needed shared lib. Archives are handled | |
| 5071 | elsewhere. */ | |
| 5072 | fdh = make_fdh (info, eh); | |
| 5073 | if (fdh == NULL) | |
| 5074 | return FALSE; | |
| bb700d78 | 5075 | } |
| 8c5b4e52 AM |
5076 | |
| 5077 | if (fdh != NULL) | |
| 8387904d | 5078 | { |
| 35b0ce59 AM |
5079 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5080 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5081 | |
| 5082 | /* Make both descriptor and entry symbol have the most | |
| 5083 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5084 | if (entry_vis < descr_vis) |
| 5085 | fdh->elf.other += entry_vis - descr_vis; | |
| 5086 | else if (entry_vis > descr_vis) | |
| 5087 | eh->elf.other += descr_vis - entry_vis; | |
| 5088 | ||
| 8c5b4e52 AM |
5089 | /* Propagate reference flags from entry symbol to function |
| 5090 | descriptor symbol. */ | |
| 5091 | fdh->elf.root.non_ir_ref |= eh->elf.root.non_ir_ref; | |
| 5092 | fdh->elf.ref_regular |= eh->elf.ref_regular; | |
| 5093 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5094 | ||
| 5095 | if (!fdh->elf.forced_local | |
| 5096 | && fdh->elf.dynindx == -1 | |
| 5097 | && fdh->elf.versioned != versioned_hidden | |
| 5098 | && (bfd_link_dll (info) | |
| 5099 | || fdh->elf.def_dynamic | |
| 5100 | || fdh->elf.ref_dynamic) | |
| 5101 | && (eh->elf.ref_regular | |
| 5102 | || eh->elf.def_regular)) | |
| 5103 | { | |
| 5104 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5105 | return FALSE; | |
| 35b0ce59 | 5106 | } |
| 8387904d | 5107 | } |
| 99877b66 | 5108 | |
| 8387904d AM |
5109 | return TRUE; |
| 5110 | } | |
| 5111 | ||
| f6c7c3e8 AM |
5112 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5113 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5114 | |
| 8387904d | 5115 | static bfd_boolean |
| f6c7c3e8 | 5116 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5117 | { |
| 99877b66 | 5118 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5119 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5120 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5121 | |
| 459609d6 | 5122 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5123 | { |
| 459609d6 AM |
5124 | if (abiversion (ibfd) == 0) |
| 5125 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5126 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5127 | { |
| 695344c0 | 5128 | /* xgettext:c-format */ |
| 459609d6 AM |
5129 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5130 | " version %d\n"), | |
| 5131 | ibfd, abiversion (ibfd)); | |
| 5132 | bfd_set_error (bfd_error_bad_value); | |
| 5133 | return FALSE; | |
| f6c7c3e8 AM |
5134 | } |
| 5135 | ||
| 459609d6 AM |
5136 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5137 | && (opd->flags & SEC_RELOC) != 0 | |
| 5138 | && opd->reloc_count != 0 | |
| 5139 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5140 | { |
| 459609d6 AM |
5141 | /* Garbage collection needs some extra help with .opd sections. |
| 5142 | We don't want to necessarily keep everything referenced by | |
| 5143 | relocs in .opd, as that would keep all functions. Instead, | |
| 5144 | if we reference an .opd symbol (a function descriptor), we | |
| 5145 | want to keep the function code symbol's section. This is | |
| 5146 | easy for global symbols, but for local syms we need to keep | |
| 5147 | information about the associated function section. */ | |
| 5148 | bfd_size_type amt; | |
| 5149 | asection **opd_sym_map; | |
| 5150 | ||
| 51aecdc5 | 5151 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5152 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5153 | if (opd_sym_map == NULL) | |
| b3fac117 | 5154 | return FALSE; |
| 459609d6 AM |
5155 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5156 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5157 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5158 | } |
| 5159 | } | |
| 5160 | ||
| 459609d6 AM |
5161 | if (!is_ppc64_elf (info->output_bfd)) |
| 5162 | return TRUE; | |
| 5163 | htab = ppc_hash_table (info); | |
| 5164 | if (htab == NULL) | |
| 5165 | return FALSE; | |
| 5166 | ||
| 5167 | /* For input files without an explicit abiversion in e_flags | |
| 5168 | we should have flagged any with symbol st_other bits set | |
| 5169 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5170 | Set the output abiversion if not yet set, and for any input | |
| 5171 | still ambiguous, take its abiversion from the output. | |
| 5172 | Differences in ABI are reported later. */ | |
| 5173 | if (abiversion (info->output_bfd) == 0) | |
| 5174 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5175 | else if (abiversion (ibfd) == 0) | |
| 5176 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5177 | ||
| 5178 | p = &htab->dot_syms; | |
| 5179 | while ((eh = *p) != NULL) | |
| 5180 | { | |
| 5181 | *p = NULL; | |
| 5182 | if (&eh->elf == htab->elf.hgot) | |
| 5183 | ; | |
| 5184 | else if (htab->elf.hgot == NULL | |
| 5185 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5186 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5187 | else if (abiversion (ibfd) <= 1) |
| 5188 | { | |
| 5189 | htab->need_func_desc_adj = 1; | |
| 5190 | if (!add_symbol_adjust (eh, info)) | |
| 5191 | return FALSE; | |
| 5192 | } | |
| 459609d6 AM |
5193 | p = &eh->u.next_dot_sym; |
| 5194 | } | |
| b3fac117 | 5195 | return TRUE; |
| 8387904d AM |
5196 | } |
| 5197 | ||
| 97fed1c9 JJ |
5198 | /* Undo hash table changes when an --as-needed input file is determined |
| 5199 | not to be needed. */ | |
| 5200 | ||
| 5201 | static bfd_boolean | |
| e5034e59 AM |
5202 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5203 | struct bfd_link_info *info, | |
| 5204 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5205 | { |
| e5034e59 AM |
5206 | if (act == notice_not_needed) |
| 5207 | { | |
| 5208 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5209 | |
| e5034e59 AM |
5210 | if (htab == NULL) |
| 5211 | return FALSE; | |
| 4dfe6ac6 | 5212 | |
| e5034e59 AM |
5213 | htab->dot_syms = NULL; |
| 5214 | } | |
| 5215 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5216 | } |
| 5217 | ||
| aa374f67 AM |
5218 | /* If --just-symbols against a final linked binary, then assume we need |
| 5219 | toc adjusting stubs when calling functions defined there. */ | |
| 5220 | ||
| 5221 | static void | |
| 5222 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5223 | { | |
| 5224 | if ((sec->flags & SEC_CODE) != 0 | |
| 5225 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5226 | && is_ppc64_elf (sec->owner)) | |
| 5227 | { | |
| 2c3f079f AM |
5228 | if (abiversion (sec->owner) >= 2 |
| 5229 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5230 | sec->has_toc_reloc = 1; |
| 5231 | } | |
| 5232 | _bfd_elf_link_just_syms (sec, info); | |
| 5233 | } | |
| 5234 | ||
| e054468f | 5235 | static struct plt_entry ** |
| 4ce794b7 AM |
5236 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5237 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5238 | { |
| 5239 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5240 | struct plt_entry **local_plt; |
| f961d9dd | 5241 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5242 | |
| 5243 | if (local_got_ents == NULL) | |
| 5244 | { | |
| 5245 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5246 | ||
| e054468f AM |
5247 | size *= (sizeof (*local_got_ents) |
| 5248 | + sizeof (*local_plt) | |
| 5249 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5250 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5251 | if (local_got_ents == NULL) |
| e054468f | 5252 | return NULL; |
| 411e1bfb AM |
5253 | elf_local_got_ents (abfd) = local_got_ents; |
| 5254 | } | |
| 5255 | ||
| e054468f | 5256 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5257 | { |
| 5258 | struct got_entry *ent; | |
| 5259 | ||
| 5260 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5261 | if (ent->addend == r_addend |
| 5262 | && ent->owner == abfd | |
| 5263 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5264 | break; |
| 5265 | if (ent == NULL) | |
| 5266 | { | |
| 5267 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5268 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5269 | if (ent == NULL) |
| 5270 | return FALSE; | |
| 5271 | ent->next = local_got_ents[r_symndx]; | |
| 5272 | ent->addend = r_addend; | |
| e717da7e | 5273 | ent->owner = abfd; |
| 411e1bfb | 5274 | ent->tls_type = tls_type; |
| 927be08e | 5275 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5276 | ent->got.refcount = 0; |
| 5277 | local_got_ents[r_symndx] = ent; | |
| 5278 | } | |
| 5279 | ent->got.refcount += 1; | |
| 5280 | } | |
| 5281 | ||
| e054468f | 5282 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5283 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5284 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5285 | |
| 5286 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5287 | } |
| 5288 | ||
| 411e1bfb | 5289 | static bfd_boolean |
| e054468f | 5290 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5291 | { |
| 411e1bfb | 5292 | struct plt_entry *ent; |
| 1e2f5b6e | 5293 | |
| e054468f | 5294 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5295 | if (ent->addend == addend) |
| 5296 | break; | |
| 5297 | if (ent == NULL) | |
| 1e2f5b6e | 5298 | { |
| 411e1bfb | 5299 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5300 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5301 | if (ent == NULL) |
| 5302 | return FALSE; | |
| e054468f | 5303 | ent->next = *plist; |
| 411e1bfb AM |
5304 | ent->addend = addend; |
| 5305 | ent->plt.refcount = 0; | |
| e054468f | 5306 | *plist = ent; |
| 1e2f5b6e | 5307 | } |
| 411e1bfb | 5308 | ent->plt.refcount += 1; |
| b34976b6 | 5309 | return TRUE; |
| 1e2f5b6e AM |
5310 | } |
| 5311 | ||
| e054468f AM |
5312 | static bfd_boolean |
| 5313 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5314 | { | |
| 5315 | return (r_type == R_PPC64_REL24 | |
| 5316 | || r_type == R_PPC64_REL14 | |
| 5317 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5318 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5319 | || r_type == R_PPC64_ADDR24 | |
| 5320 | || r_type == R_PPC64_ADDR14 | |
| 5321 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5322 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5323 | } | |
| 5324 | ||
| 5bd4f169 | 5325 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5326 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5327 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5328 | |
| b34976b6 | 5329 | static bfd_boolean |
| 4ce794b7 AM |
5330 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5331 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5332 | { |
| 65f38f15 | 5333 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5334 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5335 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5336 | const Elf_Internal_Rela *rel; |
| 5337 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5338 | asection *sreloc; |
| 1e2f5b6e | 5339 | asection **opd_sym_map; |
| 3a71aa26 | 5340 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5341 | |
| 0e1862bb | 5342 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5343 | return TRUE; |
| 5bd4f169 | 5344 | |
| 680a3378 AM |
5345 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5346 | In particular, any relocs in such sections should not affect GOT | |
| 5347 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5348 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5349 | relocs, and there's not much point in propagating relocs to shared | |
| 5350 | libs that the dynamic linker won't relocate. */ | |
| 5351 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5352 | return TRUE; | |
| 5353 | ||
| 0c8d6e5c | 5354 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5355 | |
| 65f38f15 | 5356 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5357 | if (htab == NULL) |
| 5358 | return FALSE; | |
| 5359 | ||
| 3a71aa26 AM |
5360 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5361 | FALSE, FALSE, TRUE); | |
| 5362 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5363 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5364 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5365 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5366 | sreloc = NULL; |
| 1e2f5b6e | 5367 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5368 | if (ppc64_elf_section_data (sec) != NULL |
| 5369 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5370 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5371 | |
| 5372 | rel_end = relocs + sec->reloc_count; | |
| 5373 | for (rel = relocs; rel < rel_end; rel++) | |
| 5374 | { | |
| 5375 | unsigned long r_symndx; | |
| 5376 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5377 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5378 | int tls_type; |
| 7c8fe5c4 | 5379 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5380 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5381 | |
| 5382 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5383 | if (r_symndx < symtab_hdr->sh_info) | |
| 5384 | h = NULL; | |
| 5385 | else | |
| 973a3492 | 5386 | { |
| 8c5b4e52 AM |
5387 | struct ppc_link_hash_entry *eh; |
| 5388 | ||
| 973a3492 | 5389 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 5390 | h = elf_follow_link (h); |
| 8c5b4e52 | 5391 | eh = (struct ppc_link_hash_entry *) h; |
| 81fbe831 AM |
5392 | |
| 5393 | /* PR15323, ref flags aren't set for references in the same | |
| 5394 | object. */ | |
| 5395 | h->root.non_ir_ref = 1; | |
| 8c5b4e52 AM |
5396 | if (eh->is_func && eh->oh != NULL) |
| 5397 | eh->oh->elf.root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5398 | |
| 5399 | if (h == htab->elf.hgot) | |
| 5400 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5401 | } |
| 5bd4f169 | 5402 | |
| 727fc41e | 5403 | tls_type = 0; |
| e054468f | 5404 | ifunc = NULL; |
| 25f23106 AM |
5405 | if (h != NULL) |
| 5406 | { | |
| 5407 | if (h->type == STT_GNU_IFUNC) | |
| 5408 | { | |
| 5409 | h->needs_plt = 1; | |
| 5410 | ifunc = &h->plt.plist; | |
| 5411 | } | |
| 5412 | } | |
| 5413 | else | |
| 5414 | { | |
| 5415 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5416 | abfd, r_symndx); | |
| 5417 | if (isym == NULL) | |
| 5418 | return FALSE; | |
| 5419 | ||
| 5420 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5421 | { | |
| 5422 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5423 | rel->r_addend, PLT_IFUNC); | |
| 5424 | if (ifunc == NULL) | |
| 5425 | return FALSE; | |
| 5426 | } | |
| 5427 | } | |
| 727fc41e | 5428 | |
| cbf95972 | 5429 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5430 | switch (r_type) |
| 5bd4f169 | 5431 | { |
| 727fc41e AM |
5432 | case R_PPC64_TLSGD: |
| 5433 | case R_PPC64_TLSLD: | |
| 5434 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5435 | its parameter symbol. */ | |
| 5436 | break; | |
| 5437 | ||
| 411e1bfb AM |
5438 | case R_PPC64_GOT_TLSLD16: |
| 5439 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5440 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5441 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5442 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5443 | goto dogottls; |
| 5444 | ||
| 5445 | case R_PPC64_GOT_TLSGD16: | |
| 5446 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5447 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5448 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5449 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5450 | goto dogottls; |
| 5451 | ||
| 5452 | case R_PPC64_GOT_TPREL16_DS: | |
| 5453 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5454 | case R_PPC64_GOT_TPREL16_HI: | |
| 5455 | case R_PPC64_GOT_TPREL16_HA: | |
| 0e1862bb | 5456 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5457 | info->flags |= DF_STATIC_TLS; |
| 5458 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5459 | goto dogottls; | |
| 5460 | ||
| 5461 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5462 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5463 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5464 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5465 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5466 | dogottls: | |
| 5467 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5468 | /* Fall through */ |
| 411e1bfb | 5469 | |
| 5bd4f169 | 5470 | case R_PPC64_GOT16: |
| 5bd4f169 | 5471 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5472 | case R_PPC64_GOT16_HA: |
| 5473 | case R_PPC64_GOT16_HI: | |
| 5474 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5475 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5476 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5477 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5478 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5479 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5480 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5481 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5482 | || r_type == R_PPC64_GOT16 | |
| 5483 | || r_type == R_PPC64_GOT16_DS) | |
| 5484 | { | |
| 5485 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5486 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5487 | } |
| 5488 | ||
| e717da7e AM |
5489 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5490 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5491 | return FALSE; |
| 5bd4f169 AM |
5492 | |
| 5493 | if (h != NULL) | |
| 5494 | { | |
| 411e1bfb AM |
5495 | struct ppc_link_hash_entry *eh; |
| 5496 | struct got_entry *ent; | |
| 65f38f15 | 5497 | |
| 411e1bfb AM |
5498 | eh = (struct ppc_link_hash_entry *) h; |
| 5499 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5500 | if (ent->addend == rel->r_addend | |
| e717da7e | 5501 | && ent->owner == abfd |
| 411e1bfb AM |
5502 | && ent->tls_type == tls_type) |
| 5503 | break; | |
| 5504 | if (ent == NULL) | |
| 5bd4f169 | 5505 | { |
| 411e1bfb | 5506 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5507 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5508 | if (ent == NULL) |
| b34976b6 | 5509 | return FALSE; |
| 411e1bfb AM |
5510 | ent->next = eh->elf.got.glist; |
| 5511 | ent->addend = rel->r_addend; | |
| e717da7e | 5512 | ent->owner = abfd; |
| 411e1bfb | 5513 | ent->tls_type = tls_type; |
| 927be08e | 5514 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5515 | ent->got.refcount = 0; |
| 5516 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5517 | } |
| 411e1bfb | 5518 | ent->got.refcount += 1; |
| e7b938ca | 5519 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5520 | } |
| 411e1bfb AM |
5521 | else |
| 5522 | /* This is a global offset table entry for a local symbol. */ | |
| 5523 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5524 | rel->r_addend, tls_type)) | |
| 5525 | return FALSE; | |
| a345bc8d AM |
5526 | |
| 5527 | /* We may also need a plt entry if the symbol turns out to be | |
| 5528 | an ifunc. */ | |
| 0e1862bb | 5529 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5530 | { |
| 5531 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5532 | return FALSE; | |
| 5533 | } | |
| 5bd4f169 AM |
5534 | break; |
| 5535 | ||
| 5bd4f169 | 5536 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5537 | case R_PPC64_PLT16_HI: |
| 5538 | case R_PPC64_PLT16_LO: | |
| 5539 | case R_PPC64_PLT32: | |
| 5540 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5541 | /* This symbol requires a procedure linkage table entry. */ |
| 5542 | plt_list = ifunc; | |
| 5543 | if (h != NULL) | |
| e054468f | 5544 | { |
| e054468f AM |
5545 | h->needs_plt = 1; |
| 5546 | if (h->root.root.string[0] == '.' | |
| 5547 | && h->root.root.string[1] != '\0') | |
| 5548 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5549 | plt_list = &h->plt.plist; |
| 5550 | } | |
| 5551 | if (plt_list == NULL) | |
| 5552 | { | |
| 5553 | /* It does not make sense to have a procedure linkage | |
| 5554 | table entry for a non-ifunc local symbol. */ | |
| 5555 | info->callbacks->einfo | |
| 695344c0 | 5556 | /* xgettext:c-format */ |
| cbf95972 AM |
5557 | (_("%P: %H: %s reloc against local symbol\n"), |
| 5558 | abfd, sec, rel->r_offset, | |
| 5559 | ppc64_elf_howto_table[r_type]->name); | |
| 5560 | bfd_set_error (bfd_error_bad_value); | |
| 5561 | return FALSE; | |
| e054468f | 5562 | } |
| cbf95972 AM |
5563 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5564 | return FALSE; | |
| 5bd4f169 AM |
5565 | break; |
| 5566 | ||
| 5567 | /* The following relocations don't need to propagate the | |
| 5568 | relocation if linking a shared object since they are | |
| 5569 | section relative. */ | |
| 5570 | case R_PPC64_SECTOFF: | |
| 5571 | case R_PPC64_SECTOFF_LO: | |
| 5572 | case R_PPC64_SECTOFF_HI: | |
| 5573 | case R_PPC64_SECTOFF_HA: | |
| 5574 | case R_PPC64_SECTOFF_DS: | |
| 5575 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5576 | case R_PPC64_DTPREL16: |
| 5577 | case R_PPC64_DTPREL16_LO: | |
| 5578 | case R_PPC64_DTPREL16_HI: | |
| 5579 | case R_PPC64_DTPREL16_HA: | |
| 5580 | case R_PPC64_DTPREL16_DS: | |
| 5581 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5582 | case R_PPC64_DTPREL16_HIGH: |
| 5583 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5584 | case R_PPC64_DTPREL16_HIGHER: |
| 5585 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5586 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5587 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5588 | break; |
| 5589 | ||
| ad8e1ba5 | 5590 | /* Nor do these. */ |
| 25f23106 AM |
5591 | case R_PPC64_REL16: |
| 5592 | case R_PPC64_REL16_LO: | |
| 5593 | case R_PPC64_REL16_HI: | |
| 5594 | case R_PPC64_REL16_HA: | |
| a680de9a | 5595 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5596 | break; |
| 5597 | ||
| 45965137 AM |
5598 | /* Not supported as a dynamic relocation. */ |
| 5599 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5600 | if (bfd_link_pic (info)) |
| 45965137 AM |
5601 | { |
| 5602 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5603 | ppc_howto_init (); | |
| 695344c0 | 5604 | /* xgettext:c-format */ |
| 45965137 AM |
5605 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " |
| 5606 | "in shared libraries and PIEs.\n"), | |
| 5607 | abfd, sec, rel->r_offset, | |
| 5608 | ppc64_elf_howto_table[r_type]->name); | |
| 5609 | bfd_set_error (bfd_error_bad_value); | |
| 5610 | return FALSE; | |
| 5611 | } | |
| 5612 | break; | |
| 5613 | ||
| ad8e1ba5 | 5614 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5615 | case R_PPC64_TOC16_DS: |
| 5616 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5617 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5618 | /* Fall through. */ |
| ad8e1ba5 AM |
5619 | case R_PPC64_TOC16_LO: |
| 5620 | case R_PPC64_TOC16_HI: | |
| 5621 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5622 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5623 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5624 | break; |
| 5625 | ||
| 006589cf AM |
5626 | /* Marker reloc. */ |
| 5627 | case R_PPC64_ENTRY: | |
| 5628 | break; | |
| 5629 | ||
| 5bd4f169 AM |
5630 | /* This relocation describes the C++ object vtable hierarchy. |
| 5631 | Reconstruct it for later use during GC. */ | |
| 5632 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5633 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5634 | return FALSE; |
| 5bd4f169 AM |
5635 | break; |
| 5636 | ||
| 5637 | /* This relocation describes which C++ vtable entries are actually | |
| 5638 | used. Record for later use during GC. */ | |
| 5639 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5640 | BFD_ASSERT (h != NULL); |
| 5641 | if (h != NULL | |
| 5642 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5643 | return FALSE; |
| 5bd4f169 AM |
5644 | break; |
| 5645 | ||
| 721956f4 AM |
5646 | case R_PPC64_REL14: |
| 5647 | case R_PPC64_REL14_BRTAKEN: | |
| 5648 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5649 | { |
| 5650 | asection *dest = NULL; | |
| 5651 | ||
| 5652 | /* Heuristic: If jumping outside our section, chances are | |
| 5653 | we are going to need a stub. */ | |
| 5654 | if (h != NULL) | |
| 5655 | { | |
| 5656 | /* If the sym is weak it may be overridden later, so | |
| 5657 | don't assume we know where a weak sym lives. */ | |
| 5658 | if (h->root.type == bfd_link_hash_defined) | |
| 5659 | dest = h->root.u.def.section; | |
| 5660 | } | |
| 5661 | else | |
| 87d72d41 AM |
5662 | { |
| 5663 | Elf_Internal_Sym *isym; | |
| 5664 | ||
| 5665 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5666 | abfd, r_symndx); | |
| 5667 | if (isym == NULL) | |
| 5668 | return FALSE; | |
| 5669 | ||
| 5670 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5671 | } | |
| 5672 | ||
| 220c76dd | 5673 | if (dest != sec) |
| 7c8fe5c4 | 5674 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5675 | } |
| 721956f4 AM |
5676 | /* Fall through. */ |
| 5677 | ||
| 5d1634d7 | 5678 | case R_PPC64_REL24: |
| cbf95972 AM |
5679 | plt_list = ifunc; |
| 5680 | if (h != NULL) | |
| 5d1634d7 | 5681 | { |
| e054468f AM |
5682 | h->needs_plt = 1; |
| 5683 | if (h->root.root.string[0] == '.' | |
| 5684 | && h->root.root.string[1] != '\0') | |
| 5685 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5686 | |
| 3a71aa26 | 5687 | if (h == tga || h == dottga) |
| cbf95972 AM |
5688 | { |
| 5689 | sec->has_tls_reloc = 1; | |
| 5690 | if (rel != relocs | |
| 5691 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5692 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5693 | /* We have a new-style __tls_get_addr call with | |
| 5694 | a marker reloc. */ | |
| 5695 | ; | |
| 5696 | else | |
| 5697 | /* Mark this section as having an old-style call. */ | |
| 5698 | sec->has_tls_get_addr_call = 1; | |
| 5699 | } | |
| 5700 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5701 | } |
| cbf95972 AM |
5702 | |
| 5703 | /* We may need a .plt entry if the function this reloc | |
| 5704 | refers to is in a shared lib. */ | |
| 5705 | if (plt_list | |
| 5706 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5707 | return FALSE; | |
| 411e1bfb AM |
5708 | break; |
| 5709 | ||
| cbf95972 AM |
5710 | case R_PPC64_ADDR14: |
| 5711 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5712 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5713 | case R_PPC64_ADDR24: | |
| 5714 | goto dodyn; | |
| 5715 | ||
| 411e1bfb AM |
5716 | case R_PPC64_TPREL64: |
| 5717 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 0e1862bb | 5718 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5719 | info->flags |= DF_STATIC_TLS; |
| 5720 | goto dotlstoc; | |
| 5721 | ||
| 5722 | case R_PPC64_DTPMOD64: | |
| 5723 | if (rel + 1 < rel_end | |
| 5724 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5725 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5726 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5727 | else |
| 951fd09b | 5728 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5729 | goto dotlstoc; |
| 5730 | ||
| 5731 | case R_PPC64_DTPREL64: | |
| 5732 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5733 | if (rel != relocs | |
| 5734 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5735 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5736 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5737 | Don't mark with TLS_DTPREL. */ | |
| 5738 | goto dodyn; | |
| 5739 | ||
| 5740 | dotlstoc: | |
| 5741 | sec->has_tls_reloc = 1; | |
| 5742 | if (h != NULL) | |
| 5743 | { | |
| 5744 | struct ppc_link_hash_entry *eh; | |
| 5745 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5746 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5747 | } |
| 5748 | else | |
| 5749 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5750 | rel->r_addend, tls_type)) | |
| 5751 | return FALSE; | |
| 5752 | ||
| 7c8fe5c4 AM |
5753 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5754 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5755 | { |
| 3a71aa26 AM |
5756 | bfd_size_type amt; |
| 5757 | ||
| e7b938ca | 5758 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5759 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5760 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5761 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5762 | return FALSE; | |
| 5763 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5764 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5765 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5766 | return FALSE; |
| 7c8fe5c4 AM |
5767 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5768 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5769 | } |
| 5770 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5771 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5772 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5773 | |
| 5774 | /* Mark the second slot of a GD or LD entry. | |
| 5775 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5776 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5777 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5778 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5779 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5780 | goto dodyn; |
| 5781 | ||
| 5782 | case R_PPC64_TPREL16: | |
| 5783 | case R_PPC64_TPREL16_LO: | |
| 5784 | case R_PPC64_TPREL16_HI: | |
| 5785 | case R_PPC64_TPREL16_HA: | |
| 5786 | case R_PPC64_TPREL16_DS: | |
| 5787 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5788 | case R_PPC64_TPREL16_HIGH: |
| 5789 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5790 | case R_PPC64_TPREL16_HIGHER: |
| 5791 | case R_PPC64_TPREL16_HIGHERA: | |
| 5792 | case R_PPC64_TPREL16_HIGHEST: | |
| 5793 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 5794 | if (bfd_link_pic (info)) |
| 411e1bfb | 5795 | { |
| afb93314 | 5796 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5797 | goto dodyn; |
| 5d1634d7 AM |
5798 | } |
| 5799 | break; | |
| 5800 | ||
| e86ce104 | 5801 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5802 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5803 | && rel + 1 < rel_end |
| 4ce794b7 | 5804 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5805 | { |
| 8387904d | 5806 | if (h != NULL) |
| 8c5b4e52 | 5807 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 8387904d AM |
5808 | else |
| 5809 | { | |
| 5810 | asection *s; | |
| 87d72d41 | 5811 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5812 | |
| 87d72d41 AM |
5813 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5814 | abfd, r_symndx); | |
| 5815 | if (isym == NULL) | |
| 8387904d | 5816 | return FALSE; |
| 87d72d41 AM |
5817 | |
| 5818 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5819 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5820 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5821 | } |
| 1e2f5b6e | 5822 | } |
| e86ce104 AM |
5823 | /* Fall through. */ |
| 5824 | ||
| 65f38f15 AM |
5825 | case R_PPC64_ADDR16: |
| 5826 | case R_PPC64_ADDR16_DS: | |
| 5827 | case R_PPC64_ADDR16_HA: | |
| 5828 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5829 | case R_PPC64_ADDR16_HIGH: |
| 5830 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5831 | case R_PPC64_ADDR16_HIGHER: |
| 5832 | case R_PPC64_ADDR16_HIGHERA: | |
| 5833 | case R_PPC64_ADDR16_HIGHEST: | |
| 5834 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5835 | case R_PPC64_ADDR16_LO: | |
| 5836 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5837 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5838 | && rel->r_addend == 0) |
| 5839 | { | |
| 5840 | /* We may need a .plt entry if this reloc refers to a | |
| 5841 | function in a shared lib. */ | |
| 5842 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5843 | return FALSE; | |
| 5844 | h->pointer_equality_needed = 1; | |
| 5845 | } | |
| 5846 | /* Fall through. */ | |
| 5847 | ||
| 5848 | case R_PPC64_REL30: | |
| 5849 | case R_PPC64_REL32: | |
| 5850 | case R_PPC64_REL64: | |
| 65f38f15 | 5851 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5852 | case R_PPC64_UADDR16: |
| 5853 | case R_PPC64_UADDR32: | |
| 5854 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5855 | case R_PPC64_TOC: |
| 0e1862bb | 5856 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5857 | /* We may need a copy reloc. */ |
| f5385ebf | 5858 | h->non_got_ref = 1; |
| 81848ca0 | 5859 | |
| 41bd81ab | 5860 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5861 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5862 | break; |
| e86ce104 | 5863 | |
| 65f38f15 AM |
5864 | /* If we are creating a shared library, and this is a reloc |
| 5865 | against a global symbol, or a non PC relative reloc | |
| 5866 | against a local symbol, then we need to copy the reloc | |
| 5867 | into the shared library. However, if we are linking with | |
| 5868 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5869 | global symbol which is defined in an object we are | |
| 5870 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5871 | this point we have not seen all the input files, so it is | |
| 5872 | possible that DEF_REGULAR is not set now but will be set | |
| 5873 | later (it is never cleared). In case of a weak definition, | |
| 5874 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5875 | a shared library. We account for that possibility below by | |
| f4656909 | 5876 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5877 | table entry. A similar situation occurs when creating |
| 5878 | shared libraries and symbol visibility changes render the | |
| 5879 | symbol local. | |
| 5880 | ||
| 5881 | If on the other hand, we are creating an executable, we | |
| 5882 | may need to keep relocations for symbols satisfied by a | |
| 5883 | dynamic library if we manage to avoid copy relocs for the | |
| 5884 | symbol. */ | |
| 411e1bfb | 5885 | dodyn: |
| 0e1862bb | 5886 | if ((bfd_link_pic (info) |
| 1d483afe | 5887 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5888 | || (h != NULL |
| 198f1157 | 5889 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5890 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5891 | || !h->def_regular)))) |
| f4656909 | 5892 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5893 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5894 | && h != NULL |
| 5895 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5896 | || !h->def_regular)) |
| 0e1862bb | 5897 | || (!bfd_link_pic (info) |
| 25f23106 | 5898 | && ifunc != NULL)) |
| 5bd4f169 | 5899 | { |
| 65f38f15 AM |
5900 | /* We must copy these reloc types into the output file. |
| 5901 | Create a reloc section in dynobj and make room for | |
| 5902 | this reloc. */ | |
| 5bd4f169 AM |
5903 | if (sreloc == NULL) |
| 5904 | { | |
| 83bac4b0 NC |
5905 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5906 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5907 | |
| 5bd4f169 | 5908 | if (sreloc == NULL) |
| 83bac4b0 | 5909 | return FALSE; |
| 5bd4f169 AM |
5910 | } |
| 5911 | ||
| 65f38f15 AM |
5912 | /* If this is a global symbol, we count the number of |
| 5913 | relocations we need for this symbol. */ | |
| 5914 | if (h != NULL) | |
| 5915 | { | |
| 19e08130 AM |
5916 | struct elf_dyn_relocs *p; |
| 5917 | struct elf_dyn_relocs **head; | |
| 5918 | ||
| ec338859 | 5919 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5920 | p = *head; |
| 5921 | if (p == NULL || p->sec != sec) | |
| 5922 | { | |
| 5923 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5924 | if (p == NULL) | |
| 5925 | return FALSE; | |
| 5926 | p->next = *head; | |
| 5927 | *head = p; | |
| 5928 | p->sec = sec; | |
| 5929 | p->count = 0; | |
| 5930 | p->pc_count = 0; | |
| 5931 | } | |
| 5932 | p->count += 1; | |
| 5933 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5934 | p->pc_count += 1; | |
| 65f38f15 AM |
5935 | } |
| 5936 | else | |
| 5937 | { | |
| ec338859 AM |
5938 | /* Track dynamic relocs needed for local syms too. |
| 5939 | We really need local syms available to do this | |
| 5940 | easily. Oh well. */ | |
| 19e08130 AM |
5941 | struct ppc_dyn_relocs *p; |
| 5942 | struct ppc_dyn_relocs **head; | |
| 5943 | bfd_boolean is_ifunc; | |
| ec338859 | 5944 | asection *s; |
| 6edfbbad | 5945 | void *vpp; |
| 87d72d41 | 5946 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5947 | |
| 87d72d41 AM |
5948 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5949 | abfd, r_symndx); | |
| 5950 | if (isym == NULL) | |
| b34976b6 | 5951 | return FALSE; |
| ec338859 | 5952 | |
| 87d72d41 AM |
5953 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5954 | if (s == NULL) | |
| 5955 | s = sec; | |
| 5956 | ||
| 6edfbbad | 5957 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5958 | head = (struct ppc_dyn_relocs **) vpp; |
| 5959 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5960 | p = *head; | |
| 5961 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5962 | p = p->next; | |
| 5963 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5964 | { | |
| 5965 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5966 | if (p == NULL) | |
| 5967 | return FALSE; | |
| 5968 | p->next = *head; | |
| 5969 | *head = p; | |
| 5970 | p->sec = sec; | |
| 5971 | p->ifunc = is_ifunc; | |
| 5972 | p->count = 0; | |
| 5973 | } | |
| 5974 | p->count += 1; | |
| ec338859 | 5975 | } |
| 65f38f15 | 5976 | } |
| 5bd4f169 | 5977 | break; |
| 65f38f15 AM |
5978 | |
| 5979 | default: | |
| 96e0dda4 | 5980 | break; |
| 5bd4f169 AM |
5981 | } |
| 5982 | } | |
| 5983 | ||
| b34976b6 | 5984 | return TRUE; |
| 5bd4f169 AM |
5985 | } |
| 5986 | ||
| ee67d69a AM |
5987 | /* Merge backend specific data from an object file to the output |
| 5988 | object file when linking. */ | |
| 5989 | ||
| 5990 | static bfd_boolean | |
| 50e03d47 | 5991 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 5992 | { |
| 50e03d47 | 5993 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
5994 | unsigned long iflags, oflags; |
| 5995 | ||
| 5996 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5997 | return TRUE; | |
| 5998 | ||
| 5999 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6000 | return TRUE; | |
| 6001 | ||
| 50e03d47 | 6002 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6003 | return FALSE; |
| 6004 | ||
| 6005 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6006 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6007 | ||
| f6c7c3e8 | 6008 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6009 | { |
| 4eca0228 | 6010 | _bfd_error_handler |
| 695344c0 | 6011 | /* xgettext:c-format */ |
| ee67d69a AM |
6012 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); |
| 6013 | bfd_set_error (bfd_error_bad_value); | |
| 6014 | return FALSE; | |
| 6015 | } | |
| f6c7c3e8 | 6016 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6017 | { |
| 4eca0228 | 6018 | _bfd_error_handler |
| 695344c0 | 6019 | /* xgettext:c-format */ |
| ee67d69a AM |
6020 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), |
| 6021 | ibfd, iflags, oflags); | |
| 6022 | bfd_set_error (bfd_error_bad_value); | |
| 6023 | return FALSE; | |
| 6024 | } | |
| 6025 | ||
| 50e03d47 | 6026 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6027 | |
| ee67d69a | 6028 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6029 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6030 | |
| 6031 | return TRUE; | |
| 6032 | } | |
| 6033 | ||
| 6034 | static bfd_boolean | |
| 6035 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6036 | { | |
| 6037 | /* Print normal ELF private data. */ | |
| 6038 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6039 | ||
| 6040 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6041 | { | |
| 6042 | FILE *file = ptr; | |
| 6043 | ||
| ee67d69a AM |
6044 | fprintf (file, _("private flags = 0x%lx:"), |
| 6045 | elf_elfheader (abfd)->e_flags); | |
| 6046 | ||
| 6047 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6048 | fprintf (file, _(" [abiv%ld]"), | |
| 6049 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6050 | fputc ('\n', file); | |
| 6051 | } | |
| 6052 | ||
| 6053 | return TRUE; | |
| 6054 | } | |
| 6055 | ||
| 8387904d | 6056 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6057 | of the code entry point, and its section, which must be in the same |
| 6058 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6059 | |
| 6060 | static bfd_vma | |
| 6061 | opd_entry_value (asection *opd_sec, | |
| 6062 | bfd_vma offset, | |
| 6063 | asection **code_sec, | |
| aef36ac1 AM |
6064 | bfd_vma *code_off, |
| 6065 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6066 | { |
| 6067 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6068 | Elf_Internal_Rela *relocs; |
| 8387904d | 6069 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6070 | bfd_vma val; |
| 8387904d | 6071 | |
| 9f296da3 AM |
6072 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6073 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6074 | if (opd_sec->reloc_count == 0) |
| 6075 | { | |
| 729eabd5 | 6076 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6077 | |
| 729eabd5 AM |
6078 | if (contents == NULL) |
| 6079 | { | |
| 6080 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6081 | return (bfd_vma) -1; | |
| 6082 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6083 | } | |
| ee1e4ede | 6084 | |
| dbb3fbbb | 6085 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6086 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6087 | return (bfd_vma) -1; |
| 6088 | ||
| 729eabd5 | 6089 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6090 | if (code_sec != NULL) |
| 6091 | { | |
| 6092 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6093 | |
| aef36ac1 | 6094 | if (in_code_sec) |
| 4b85d634 | 6095 | { |
| aef36ac1 AM |
6096 | sec = *code_sec; |
| 6097 | if (sec->vma <= val | |
| 6098 | && val < sec->vma + sec->size) | |
| 6099 | likely = sec; | |
| 6100 | else | |
| 6101 | val = -1; | |
| 6102 | } | |
| 6103 | else | |
| 6104 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6105 | if (sec->vma <= val | |
| 6106 | && (sec->flags & SEC_LOAD) != 0 | |
| 6107 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6108 | likely = sec; | |
| 6109 | if (likely != NULL) | |
| 6110 | { | |
| 6111 | *code_sec = likely; | |
| 6112 | if (code_off != NULL) | |
| 6113 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6114 | } |
| 6115 | } | |
| aef36ac1 | 6116 | return val; |
| 4b85d634 AM |
6117 | } |
| 6118 | ||
| 0c8d6e5c | 6119 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6120 | |
| 729eabd5 | 6121 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6122 | if (relocs == NULL) |
| 6123 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6124 | /* PR 17512: file: df8e1fd6. */ |
| 6125 | if (relocs == NULL) | |
| 6126 | return (bfd_vma) -1; | |
| 645ea6a9 | 6127 | |
| 8387904d | 6128 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6129 | lo = relocs; |
| 8387904d | 6130 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6131 | val = (bfd_vma) -1; |
| 8387904d AM |
6132 | while (lo < hi) |
| 6133 | { | |
| 6134 | look = lo + (hi - lo) / 2; | |
| 6135 | if (look->r_offset < offset) | |
| 6136 | lo = look + 1; | |
| 6137 | else if (look->r_offset > offset) | |
| 6138 | hi = look; | |
| 6139 | else | |
| 6140 | { | |
| 0ffa91dd NC |
6141 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6142 | ||
| 8387904d AM |
6143 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6144 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6145 | { | |
| 6146 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6147 | asection *sec = NULL; |
| 8387904d | 6148 | |
| b53dfeb2 AM |
6149 | if (symndx >= symtab_hdr->sh_info |
| 6150 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6151 | { |
| 6152 | struct elf_link_hash_entry **sym_hashes; | |
| 6153 | struct elf_link_hash_entry *rh; | |
| 6154 | ||
| 6155 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6156 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6157 | if (rh != NULL) |
| 6158 | { | |
| 6159 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6160 | if (rh->root.type != bfd_link_hash_defined |
| 6161 | && rh->root.type != bfd_link_hash_defweak) | |
| 6162 | break; | |
| 6163 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6164 | { |
| bb854a36 AM |
6165 | val = rh->root.u.def.value; |
| 6166 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6167 | } |
| 6168 | } | |
| 6169 | } | |
| 6170 | ||
| 6171 | if (sec == NULL) | |
| 6172 | { | |
| 6173 | Elf_Internal_Sym *sym; | |
| 6174 | ||
| 6175 | if (symndx < symtab_hdr->sh_info) | |
| 6176 | { | |
| 6177 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6178 | if (sym == NULL) | |
| 6179 | { | |
| 6180 | size_t symcnt = symtab_hdr->sh_info; | |
| 6181 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6182 | symcnt, 0, | |
| 6183 | NULL, NULL, NULL); | |
| 6184 | if (sym == NULL) | |
| 6185 | break; | |
| 6186 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6187 | } | |
| 6188 | sym += symndx; | |
| 128205bb AM |
6189 | } |
| 6190 | else | |
| 6191 | { | |
| b53dfeb2 AM |
6192 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6193 | 1, symndx, | |
| 6194 | NULL, NULL, NULL); | |
| 128205bb AM |
6195 | if (sym == NULL) |
| 6196 | break; | |
| 128205bb | 6197 | } |
| b53dfeb2 AM |
6198 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6199 | if (sec == NULL) | |
| 6200 | break; | |
| 6201 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6202 | val = sym->st_value; | |
| 8387904d | 6203 | } |
| b53dfeb2 | 6204 | |
| 8387904d AM |
6205 | val += look->r_addend; |
| 6206 | if (code_off != NULL) | |
| 6207 | *code_off = val; | |
| 6208 | if (code_sec != NULL) | |
| aef36ac1 AM |
6209 | { |
| 6210 | if (in_code_sec && *code_sec != sec) | |
| 6211 | return -1; | |
| 6212 | else | |
| 6213 | *code_sec = sec; | |
| 6214 | } | |
| b53dfeb2 | 6215 | if (sec->output_section != NULL) |
| 8387904d | 6216 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6217 | } |
| 6218 | break; | |
| 6219 | } | |
| 6220 | } | |
| 645ea6a9 | 6221 | |
| 645ea6a9 | 6222 | return val; |
| 8387904d AM |
6223 | } |
| 6224 | ||
| aef36ac1 AM |
6225 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6226 | function size and set *CODE_OFF to the function's entry point, | |
| 6227 | otherwise return zero. */ | |
| 9f296da3 | 6228 | |
| aef36ac1 AM |
6229 | static bfd_size_type |
| 6230 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6231 | bfd_vma *code_off) | |
| 9f296da3 | 6232 | { |
| aef36ac1 AM |
6233 | bfd_size_type size; |
| 6234 | ||
| 6235 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6236 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6237 | return 0; | |
| 6238 | ||
| 6239 | size = 0; | |
| 6240 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6241 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6242 | ||
| 6243 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6244 | { |
| b07bca4e AM |
6245 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6246 | bfd_vma symval = sym->value; | |
| 6247 | ||
| 6248 | if (opd != NULL | |
| 6249 | && opd->adjust != NULL | |
| 6250 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6251 | { | |
| 6252 | /* opd_entry_value will use cached relocs that have been | |
| 6253 | adjusted, but with raw symbols. That means both local | |
| 6254 | and global symbols need adjusting. */ | |
| 6255 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6256 | if (adjust == -1) | |
| 6257 | return 0; | |
| 6258 | symval += adjust; | |
| 6259 | } | |
| 6260 | ||
| 6261 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6262 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6263 | return 0; | |
| 6264 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6265 | symbol. This size has nothing to do with the code size of the | |
| 6266 | function, which is what we're supposed to return, but the | |
| 6267 | code size isn't available without looking up the dot-sym. | |
| 6268 | However, doing that would be a waste of time particularly | |
| 6269 | since elf_find_function will look at the dot-sym anyway. | |
| 6270 | Now, elf_find_function will keep the largest size of any | |
| 6271 | function sym found at the code address of interest, so return | |
| 6272 | 1 here to avoid it incorrectly caching a larger function size | |
| 6273 | for a small function. This does mean we return the wrong | |
| 6274 | size for a new-ABI function of size 24, but all that does is | |
| 6275 | disable caching for such functions. */ | |
| 6276 | if (size == 24) | |
| 6277 | size = 1; | |
| 9f296da3 | 6278 | } |
| aef36ac1 AM |
6279 | else |
| 6280 | { | |
| 6281 | if (sym->section != sec) | |
| 6282 | return 0; | |
| 6283 | *code_off = sym->value; | |
| 6284 | } | |
| 6285 | if (size == 0) | |
| 6286 | size = 1; | |
| 6287 | return size; | |
| 9f296da3 AM |
6288 | } |
| 6289 | ||
| 854b41e7 AM |
6290 | /* Return true if symbol is defined in a regular object file. */ |
| 6291 | ||
| 6292 | static bfd_boolean | |
| 6293 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6294 | { | |
| 6295 | return ((h->root.type == bfd_link_hash_defined | |
| 6296 | || h->root.type == bfd_link_hash_defweak) | |
| 6297 | && h->root.u.def.section != NULL | |
| 6298 | && h->root.u.def.section->output_section != NULL); | |
| 6299 | } | |
| 6300 | ||
| b31867b6 AM |
6301 | /* If FDH is a function descriptor symbol, return the associated code |
| 6302 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6303 | ||
| 6304 | static struct ppc_link_hash_entry * | |
| 6305 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6306 | { | |
| 6307 | if (fdh->is_func_descriptor) | |
| 6308 | { | |
| 6309 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6310 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6311 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6312 | return fh; | |
| 6313 | } | |
| 6314 | return NULL; | |
| 6315 | } | |
| 6316 | ||
| 6317 | /* If FH is a function code entry symbol, return the associated | |
| 6318 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6319 | ||
| 6320 | static struct ppc_link_hash_entry * | |
| 6321 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6322 | { | |
| 6323 | if (fh->oh != NULL | |
| 6324 | && fh->oh->is_func_descriptor) | |
| 6325 | { | |
| 6326 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6327 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6328 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6329 | return fdh; | |
| 6330 | } | |
| 6331 | return NULL; | |
| 6332 | } | |
| 6333 | ||
| 8c5b4e52 AM |
6334 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6335 | ||
| 6336 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6337 | ||
| 6338 | static bfd_boolean | |
| 6339 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6340 | { | |
| 6341 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6342 | ||
| 6343 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6344 | { | |
| 6345 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6346 | htab->need_func_desc_adj = 0; | |
| 6347 | } | |
| 6348 | return bfd_elf_gc_sections (abfd, info); | |
| 6349 | } | |
| 6350 | ||
| 74f0fb50 AM |
6351 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6352 | ||
| 6353 | static void | |
| 6354 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6355 | { | |
| 6356 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6357 | struct bfd_sym_chain *sym; | |
| 6358 | ||
| 4dfe6ac6 NC |
6359 | if (htab == NULL) |
| 6360 | return; | |
| 6361 | ||
| 74f0fb50 AM |
6362 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6363 | { | |
| b31867b6 | 6364 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6365 | asection *sec; |
| 6366 | ||
| 6367 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6368 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6369 | if (eh == NULL) |
| 6370 | continue; | |
| 6371 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6372 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6373 | continue; | |
| 6374 | ||
| b31867b6 AM |
6375 | fh = defined_code_entry (eh); |
| 6376 | if (fh != NULL) | |
| 74f0fb50 | 6377 | { |
| b31867b6 | 6378 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6379 | sec->flags |= SEC_KEEP; |
| 6380 | } | |
| 6381 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6382 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6383 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6384 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6385 | sec->flags |= SEC_KEEP; |
| 6386 | ||
| 6387 | sec = eh->elf.root.u.def.section; | |
| 6388 | sec->flags |= SEC_KEEP; | |
| 6389 | } | |
| 6390 | } | |
| 6391 | ||
| 64d03ab5 AM |
6392 | /* Mark sections containing dynamically referenced symbols. When |
| 6393 | building shared libraries, we must assume that any visible symbol is | |
| 6394 | referenced. */ | |
| 6395 | ||
| 6396 | static bfd_boolean | |
| 6397 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6398 | { | |
| 6399 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6400 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6401 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6402 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6403 | |
| 64d03ab5 | 6404 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6405 | fdh = defined_func_desc (eh); |
| 6406 | if (fdh != NULL) | |
| 6407 | eh = fdh; | |
| 64d03ab5 AM |
6408 | |
| 6409 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6410 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6411 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6412 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6413 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6414 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6415 | && (!bfd_link_executable (info) |
| b407645f AM |
6416 | || info->export_dynamic |
| 6417 | || (eh->elf.dynamic | |
| 6418 | && d != NULL | |
| 6419 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6420 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6421 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6422 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6423 | { |
| 6424 | asection *code_sec; | |
| b31867b6 | 6425 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6426 | |
| 6427 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6428 | ||
| 6429 | /* Function descriptor syms cause the associated | |
| 6430 | function code sym section to be marked. */ | |
| b31867b6 AM |
6431 | fh = defined_code_entry (eh); |
| 6432 | if (fh != NULL) | |
| 6433 | { | |
| 6434 | code_sec = fh->elf.root.u.def.section; | |
| 6435 | code_sec->flags |= SEC_KEEP; | |
| 6436 | } | |
| 64d03ab5 AM |
6437 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6438 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6439 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6440 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6441 | code_sec->flags |= SEC_KEEP; |
| 6442 | } | |
| 6443 | ||
| 6444 | return TRUE; | |
| 6445 | } | |
| 6446 | ||
| 5bd4f169 AM |
6447 | /* Return the section that should be marked against GC for a given |
| 6448 | relocation. */ | |
| 6449 | ||
| 6450 | static asection * | |
| 4ce794b7 | 6451 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6452 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6453 | Elf_Internal_Rela *rel, |
| 6454 | struct elf_link_hash_entry *h, | |
| 6455 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6456 | { |
| ccfa59ea AM |
6457 | asection *rsec; |
| 6458 | ||
| ccfa59ea AM |
6459 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6460 | function sections, as all functions are referenced in .opd. */ | |
| 6461 | rsec = NULL; | |
| 6462 | if (get_opd_info (sec) != NULL) | |
| 6463 | return rsec; | |
| 1e2f5b6e | 6464 | |
| 5bd4f169 AM |
6465 | if (h != NULL) |
| 6466 | { | |
| 04c9666a | 6467 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6468 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6469 | |
| 4ce794b7 | 6470 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6471 | switch (r_type) |
| 5bd4f169 AM |
6472 | { |
| 6473 | case R_PPC64_GNU_VTINHERIT: | |
| 6474 | case R_PPC64_GNU_VTENTRY: | |
| 6475 | break; | |
| 6476 | ||
| 6477 | default: | |
| 6478 | switch (h->root.type) | |
| 6479 | { | |
| 6480 | case bfd_link_hash_defined: | |
| 6481 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6482 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6483 | fdh = defined_func_desc (eh); |
| 6484 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6485 | { |
| 6486 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6487 | a call reloc. Mark the function descriptor too | |
| 6488 | against garbage collection. */ | |
| 6489 | fdh->elf.mark = 1; | |
| 6490 | if (fdh->elf.u.weakdef != NULL) | |
| 6491 | fdh->elf.u.weakdef->mark = 1; | |
| 6492 | eh = fdh; | |
| 6493 | } | |
| 1e2f5b6e AM |
6494 | |
| 6495 | /* Function descriptor syms cause the associated | |
| 6496 | function code sym section to be marked. */ | |
| b31867b6 AM |
6497 | fh = defined_code_entry (eh); |
| 6498 | if (fh != NULL) | |
| ccfa59ea AM |
6499 | { |
| 6500 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6501 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6502 | |
| b31867b6 | 6503 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6504 | } |
| 8387904d AM |
6505 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6506 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6507 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6508 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6509 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6510 | else |
| 1e2f5b6e AM |
6511 | rsec = h->root.u.def.section; |
| 6512 | break; | |
| 5bd4f169 AM |
6513 | |
| 6514 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6515 | rsec = h->root.u.c.p->section; |
| 6516 | break; | |
| 5bd4f169 AM |
6517 | |
| 6518 | default: | |
| fb34365b | 6519 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6520 | } |
| 6521 | } | |
| 6522 | } | |
| 6523 | else | |
| 6524 | { | |
| 74f0fb50 | 6525 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6526 | |
| 6527 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6528 | opd = get_opd_info (rsec); |
| 6529 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6530 | { |
| 74f0fb50 | 6531 | rsec->gc_mark = 1; |
| ccfa59ea | 6532 | |
| 51aecdc5 | 6533 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6534 | } |
| 5bd4f169 AM |
6535 | } |
| 6536 | ||
| 1e2f5b6e | 6537 | return rsec; |
| 5bd4f169 AM |
6538 | } |
| 6539 | ||
| 65f38f15 AM |
6540 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6541 | section being removed. */ | |
| 5bd4f169 | 6542 | |
| b34976b6 | 6543 | static bfd_boolean |
| 4ce794b7 AM |
6544 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6545 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6546 | { |
| 411e1bfb | 6547 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6548 | Elf_Internal_Shdr *symtab_hdr; |
| 6549 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6550 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6551 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6552 | |
| 0e1862bb | 6553 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6554 | return TRUE; |
| 6555 | ||
| 680a3378 AM |
6556 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6557 | return TRUE; | |
| 6558 | ||
| ec338859 AM |
6559 | elf_section_data (sec)->local_dynrel = NULL; |
| 6560 | ||
| 411e1bfb | 6561 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6562 | if (htab == NULL) |
| 6563 | return FALSE; | |
| 6564 | ||
| 0ffa91dd | 6565 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6566 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6567 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6568 | |
| 6569 | relend = relocs + sec->reloc_count; | |
| 6570 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6571 | { |
| 6572 | unsigned long r_symndx; | |
| 04c9666a | 6573 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6574 | struct elf_link_hash_entry *h = NULL; |
| cbf95972 | 6575 | struct plt_entry **plt_list; |
| f961d9dd | 6576 | unsigned char tls_type = 0; |
| 5bd4f169 | 6577 | |
| a33d1f77 | 6578 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6579 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6580 | if (r_symndx >= symtab_hdr->sh_info) |
| 6581 | { | |
| 6582 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6583 | struct elf_dyn_relocs **pp; |
| 6584 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6585 | |
| 6586 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6587 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6588 | eh = (struct ppc_link_hash_entry *) h; |
| 6589 | ||
| 6590 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6591 | if (p->sec == sec) | |
| 6592 | { | |
| 6593 | /* Everything must go for SEC. */ | |
| 6594 | *pp = p->next; | |
| 6595 | break; | |
| 6596 | } | |
| 6597 | } | |
| 6598 | ||
| a33d1f77 AM |
6599 | switch (r_type) |
| 6600 | { | |
| 411e1bfb AM |
6601 | case R_PPC64_GOT_TLSLD16: |
| 6602 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6603 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6604 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6605 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6606 | goto dogot; |
| 6607 | ||
| 6608 | case R_PPC64_GOT_TLSGD16: | |
| 6609 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6610 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6611 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6612 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6613 | goto dogot; |
| 6614 | ||
| 6615 | case R_PPC64_GOT_TPREL16_DS: | |
| 6616 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6617 | case R_PPC64_GOT_TPREL16_HI: | |
| 6618 | case R_PPC64_GOT_TPREL16_HA: | |
| 6619 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6620 | goto dogot; | |
| 6621 | ||
| 6622 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6623 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6624 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6625 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6626 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6627 | goto dogot; | |
| 6628 | ||
| a33d1f77 AM |
6629 | case R_PPC64_GOT16: |
| 6630 | case R_PPC64_GOT16_DS: | |
| 6631 | case R_PPC64_GOT16_HA: | |
| 6632 | case R_PPC64_GOT16_HI: | |
| 6633 | case R_PPC64_GOT16_LO: | |
| 6634 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6635 | dogot: |
| 6636 | { | |
| 6637 | struct got_entry *ent; | |
| 6638 | ||
| 58ac9f71 AM |
6639 | if (h != NULL) |
| 6640 | ent = h->got.glist; | |
| 411e1bfb AM |
6641 | else |
| 6642 | ent = local_got_ents[r_symndx]; | |
| 6643 | ||
| 6644 | for (; ent != NULL; ent = ent->next) | |
| 6645 | if (ent->addend == rel->r_addend | |
| e717da7e | 6646 | && ent->owner == abfd |
| 411e1bfb AM |
6647 | && ent->tls_type == tls_type) |
| 6648 | break; | |
| 6649 | if (ent == NULL) | |
| 6650 | abort (); | |
| 6651 | if (ent->got.refcount > 0) | |
| 6652 | ent->got.refcount -= 1; | |
| 6653 | } | |
| a33d1f77 | 6654 | break; |
| 65f38f15 | 6655 | |
| a33d1f77 AM |
6656 | case R_PPC64_PLT16_HA: |
| 6657 | case R_PPC64_PLT16_HI: | |
| 6658 | case R_PPC64_PLT16_LO: | |
| 6659 | case R_PPC64_PLT32: | |
| 6660 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6661 | case R_PPC64_REL14: |
| 6662 | case R_PPC64_REL14_BRNTAKEN: | |
| 6663 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6664 | case R_PPC64_REL24: |
| cbf95972 | 6665 | plt_list = NULL; |
| 58ac9f71 | 6666 | if (h != NULL) |
| cbf95972 AM |
6667 | plt_list = &h->plt.plist; |
| 6668 | else if (local_got_ents != NULL) | |
| 6669 | { | |
| 6670 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6671 | (local_got_ents + symtab_hdr->sh_info); | |
| 6672 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 6673 | (local_plt + symtab_hdr->sh_info); | |
| 6674 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6675 | plt_list = local_plt + r_symndx; | |
| 6676 | } | |
| 6677 | if (plt_list) | |
| 5d1634d7 | 6678 | { |
| 411e1bfb AM |
6679 | struct plt_entry *ent; |
| 6680 | ||
| cbf95972 | 6681 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6682 | if (ent->addend == rel->r_addend) |
| 6683 | break; | |
| 7c6c1722 | 6684 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6685 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6686 | } |
| e86ce104 | 6687 | break; |
| 5d1634d7 | 6688 | |
| a33d1f77 AM |
6689 | default: |
| 6690 | break; | |
| 6691 | } | |
| 6692 | } | |
| b34976b6 | 6693 | return TRUE; |
| 5bd4f169 AM |
6694 | } |
| 6695 | ||
| deb0e272 AM |
6696 | /* The maximum size of .sfpr. */ |
| 6697 | #define SFPR_MAX (218*4) | |
| 6698 | ||
| 6699 | struct sfpr_def_parms | |
| 6700 | { | |
| 699733f6 AM |
6701 | const char name[12]; |
| 6702 | unsigned char lo, hi; | |
| deb0e272 AM |
6703 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6704 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6705 | }; | |
| 6706 | ||
| a4b6fadd AM |
6707 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6708 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6709 | instead. */ | |
| deb0e272 | 6710 | |
| 4dfe6ac6 | 6711 | static bfd_boolean |
| a4b6fadd AM |
6712 | sfpr_define (struct bfd_link_info *info, |
| 6713 | const struct sfpr_def_parms *parm, | |
| 6714 | asection *stub_sec) | |
| deb0e272 AM |
6715 | { |
| 6716 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6717 | unsigned int i; | |
| 6718 | size_t len = strlen (parm->name); | |
| 6719 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6720 | char sym[16]; |
| deb0e272 | 6721 | |
| 4dfe6ac6 NC |
6722 | if (htab == NULL) |
| 6723 | return FALSE; | |
| 6724 | ||
| deb0e272 AM |
6725 | memcpy (sym, parm->name, len); |
| 6726 | sym[len + 2] = 0; | |
| 6727 | ||
| 6728 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6729 | { | |
| a4b6fadd | 6730 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6731 | |
| 6732 | sym[len + 0] = i / 10 + '0'; | |
| 6733 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6734 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6735 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6736 | if (stub_sec != NULL) |
| deb0e272 | 6737 | { |
| a4b6fadd AM |
6738 | if (h != NULL |
| 6739 | && h->elf.root.type == bfd_link_hash_defined | |
| 6740 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6741 | { | |
| 6742 | struct elf_link_hash_entry *s; | |
| 6743 | char buf[32]; | |
| 6744 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6745 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6746 | if (s == NULL) | |
| 6747 | return FALSE; | |
| 6748 | if (s->root.type == bfd_link_hash_new | |
| 6749 | || (s->root.type = bfd_link_hash_defined | |
| 6750 | && s->root.u.def.section == stub_sec)) | |
| 6751 | { | |
| 6752 | s->root.type = bfd_link_hash_defined; | |
| 6753 | s->root.u.def.section = stub_sec; | |
| 6754 | s->root.u.def.value = (stub_sec->size | |
| 6755 | + h->elf.root.u.def.value); | |
| 6756 | s->ref_regular = 1; | |
| 6757 | s->def_regular = 1; | |
| 6758 | s->ref_regular_nonweak = 1; | |
| 6759 | s->forced_local = 1; | |
| 6760 | s->non_elf = 0; | |
| 6761 | s->root.linker_def = 1; | |
| 6762 | } | |
| 6763 | } | |
| 6764 | continue; | |
| 6765 | } | |
| 6766 | if (h != NULL) | |
| 6767 | { | |
| 6768 | h->save_res = 1; | |
| 6769 | if (!h->elf.def_regular) | |
| deb0e272 | 6770 | { |
| a4b6fadd AM |
6771 | h->elf.root.type = bfd_link_hash_defined; |
| 6772 | h->elf.root.u.def.section = htab->sfpr; | |
| 6773 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6774 | h->elf.type = STT_FUNC; | |
| 6775 | h->elf.def_regular = 1; | |
| b32547cd | 6776 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6777 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6778 | writing = TRUE; | |
| deb0e272 | 6779 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6780 | { |
| 6781 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6782 | if (htab->sfpr->contents == NULL) | |
| 6783 | return FALSE; | |
| 6784 | } | |
| deb0e272 AM |
6785 | } |
| 6786 | } | |
| 6787 | if (writing) | |
| 6788 | { | |
| 6789 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6790 | if (i != parm->hi) | |
| 6791 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6792 | else | |
| 6793 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6794 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6795 | } | |
| 6796 | } | |
| 6797 | ||
| 6798 | return TRUE; | |
| 6799 | } | |
| 6800 | ||
| 6801 | static bfd_byte * | |
| 6802 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6803 | { | |
| 6804 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6805 | return p + 4; | |
| 6806 | } | |
| 6807 | ||
| 6808 | static bfd_byte * | |
| 6809 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6810 | { | |
| 6811 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6812 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6813 | p = p + 4; |
| 6814 | bfd_put_32 (abfd, BLR, p); | |
| 6815 | return p + 4; | |
| 6816 | } | |
| 6817 | ||
| 6818 | static bfd_byte * | |
| 6819 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6820 | { | |
| 6821 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6822 | return p + 4; | |
| 6823 | } | |
| 6824 | ||
| 6825 | static bfd_byte * | |
| 6826 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6827 | { | |
| a078d95a | 6828 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6829 | p = p + 4; |
| 6830 | p = restgpr0 (abfd, p, r); | |
| 6831 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6832 | p = p + 4; | |
| 6833 | if (r == 29) | |
| 6834 | { | |
| 6835 | p = restgpr0 (abfd, p, 30); | |
| 6836 | p = restgpr0 (abfd, p, 31); | |
| 6837 | } | |
| 6838 | bfd_put_32 (abfd, BLR, p); | |
| 6839 | return p + 4; | |
| 6840 | } | |
| 6841 | ||
| 6842 | static bfd_byte * | |
| 6843 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6844 | { | |
| 6845 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6846 | return p + 4; | |
| 6847 | } | |
| 6848 | ||
| 6849 | static bfd_byte * | |
| 6850 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6851 | { | |
| 6852 | p = savegpr1 (abfd, p, r); | |
| 6853 | bfd_put_32 (abfd, BLR, p); | |
| 6854 | return p + 4; | |
| 6855 | } | |
| 6856 | ||
| 6857 | static bfd_byte * | |
| 6858 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6859 | { | |
| 6860 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6861 | return p + 4; | |
| 6862 | } | |
| 6863 | ||
| 6864 | static bfd_byte * | |
| 6865 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6866 | { | |
| 6867 | p = restgpr1 (abfd, p, r); | |
| 6868 | bfd_put_32 (abfd, BLR, p); | |
| 6869 | return p + 4; | |
| 6870 | } | |
| 6871 | ||
| 6872 | static bfd_byte * | |
| 6873 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6874 | { | |
| 6875 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6876 | return p + 4; | |
| 6877 | } | |
| 6878 | ||
| 6879 | static bfd_byte * | |
| 6880 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6881 | { | |
| 6882 | p = savefpr (abfd, p, r); | |
| a078d95a | 6883 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6884 | p = p + 4; |
| 6885 | bfd_put_32 (abfd, BLR, p); | |
| 6886 | return p + 4; | |
| 6887 | } | |
| 6888 | ||
| 6889 | static bfd_byte * | |
| 6890 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6891 | { | |
| 6892 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6893 | return p + 4; | |
| 6894 | } | |
| 6895 | ||
| 6896 | static bfd_byte * | |
| 6897 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6898 | { | |
| a078d95a | 6899 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6900 | p = p + 4; |
| 6901 | p = restfpr (abfd, p, r); | |
| 6902 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6903 | p = p + 4; | |
| 6904 | if (r == 29) | |
| 6905 | { | |
| 6906 | p = restfpr (abfd, p, 30); | |
| 6907 | p = restfpr (abfd, p, 31); | |
| 6908 | } | |
| 6909 | bfd_put_32 (abfd, BLR, p); | |
| 6910 | return p + 4; | |
| 6911 | } | |
| 6912 | ||
| 6913 | static bfd_byte * | |
| 6914 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6915 | { | |
| 6916 | p = savefpr (abfd, p, r); | |
| 6917 | bfd_put_32 (abfd, BLR, p); | |
| 6918 | return p + 4; | |
| 6919 | } | |
| 6920 | ||
| 6921 | static bfd_byte * | |
| 6922 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6923 | { | |
| 6924 | p = restfpr (abfd, p, r); | |
| 6925 | bfd_put_32 (abfd, BLR, p); | |
| 6926 | return p + 4; | |
| 6927 | } | |
| 6928 | ||
| 6929 | static bfd_byte * | |
| 6930 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6931 | { | |
| 6932 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6933 | p = p + 4; | |
| 6934 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6935 | return p + 4; | |
| 6936 | } | |
| 6937 | ||
| 6938 | static bfd_byte * | |
| 6939 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6940 | { | |
| 6941 | p = savevr (abfd, p, r); | |
| 6942 | bfd_put_32 (abfd, BLR, p); | |
| 6943 | return p + 4; | |
| 6944 | } | |
| 6945 | ||
| 6946 | static bfd_byte * | |
| 6947 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6948 | { | |
| 6949 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6950 | p = p + 4; | |
| 6951 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6952 | return p + 4; | |
| 6953 | } | |
| 6954 | ||
| 6955 | static bfd_byte * | |
| 6956 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6957 | { | |
| 6958 | p = restvr (abfd, p, r); | |
| 6959 | bfd_put_32 (abfd, BLR, p); | |
| 6960 | return p + 4; | |
| 6961 | } | |
| 6962 | ||
| e86ce104 AM |
6963 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6964 | information on function code symbol entries to their corresponding | |
| 6965 | function descriptor symbol entries. */ | |
| deb0e272 | 6966 | |
| b34976b6 | 6967 | static bfd_boolean |
| 4ce794b7 | 6968 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6969 | { |
| e86ce104 | 6970 | struct bfd_link_info *info; |
| 65f38f15 | 6971 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6972 | struct ppc_link_hash_entry *fh; |
| 6973 | struct ppc_link_hash_entry *fdh; | |
| 6974 | bfd_boolean force_local; | |
| 5bd4f169 | 6975 | |
| 50bc7936 AM |
6976 | fh = (struct ppc_link_hash_entry *) h; |
| 6977 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6978 | return TRUE; |
| e86ce104 | 6979 | |
| 8c5b4e52 AM |
6980 | if (!fh->is_func) |
| 6981 | return TRUE; | |
| 6982 | ||
| 6983 | if (fh->elf.root.root.string[0] != '.' | |
| 6984 | || fh->elf.root.root.string[1] == '\0') | |
| 6985 | return TRUE; | |
| 6986 | ||
| 4ce794b7 | 6987 | info = inf; |
| 65f38f15 | 6988 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6989 | if (htab == NULL) |
| 6990 | return FALSE; | |
| 5bd4f169 | 6991 | |
| 8c5b4e52 AM |
6992 | /* Find the corresponding function descriptor symbol. */ |
| 6993 | fdh = lookup_fdh (fh, htab); | |
| 6994 | ||
| c09bdfe5 AM |
6995 | /* Resolve undefined references to dot-symbols as the value |
| 6996 | in the function descriptor, if we have one in a regular object. | |
| 6997 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6998 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
6999 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 7000 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 7001 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 7002 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
7003 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 7004 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 7005 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 7006 | &fh->elf.root.u.def.section, |
| aef36ac1 | 7007 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 7008 | { |
| b31867b6 | 7009 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 7010 | fh->elf.forced_local = 1; |
| b31867b6 AM |
7011 | fh->elf.def_regular = fdh->elf.def_regular; |
| 7012 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
7013 | } |
| 7014 | ||
| 8c5b4e52 AM |
7015 | if (!fh->elf.dynamic) |
| 7016 | { | |
| 7017 | struct plt_entry *ent; | |
| 5bd4f169 | 7018 | |
| 8c5b4e52 AM |
7019 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 7020 | if (ent->plt.refcount > 0) | |
| 7021 | break; | |
| 7022 | if (ent == NULL) | |
| 7023 | return TRUE; | |
| 7024 | } | |
| 5bd4f169 | 7025 | |
| 8c5b4e52 | 7026 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 7027 | if (fdh == NULL |
| 0e1862bb | 7028 | && !bfd_link_executable (info) |
| 50bc7936 AM |
7029 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 7030 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 7031 | { | |
| 908b32fc | 7032 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
7033 | if (fdh == NULL) |
| 7034 | return FALSE; | |
| 50bc7936 | 7035 | } |
| 648cca2c | 7036 | |
| 8c5b4e52 | 7037 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
7038 | if (fdh != NULL |
| 7039 | && fdh->fake | |
| 8c5b4e52 AM |
7040 | && (fh->elf.root.type == bfd_link_hash_defined |
| 7041 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 7042 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 7043 | |
| 8c5b4e52 AM |
7044 | /* Transfer dynamic linking information to the function descriptor. */ |
| 7045 | if (fdh != NULL) | |
| 7046 | { | |
| f5385ebf AM |
7047 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 7048 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 7049 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 7050 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
7051 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 7052 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 7053 | || fh->elf.type == STT_FUNC | |
| 7054 | || fh->elf.type == STT_GNU_IFUNC); | |
| 7055 | move_plt_plist (fh, fdh); | |
| 7056 | ||
| 7057 | if (!fdh->elf.forced_local | |
| 7058 | && fh->elf.dynindx != -1) | |
| 7059 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 7060 | return FALSE; | |
| e86ce104 AM |
7061 | } |
| 7062 | ||
| 50bc7936 AM |
7063 | /* Now that the info is on the function descriptor, clear the |
| 7064 | function code sym info. Any function code syms for which we | |
| 7065 | don't have a definition in a regular file, we force local. | |
| 7066 | This prevents a shared library from exporting syms that have | |
| 7067 | been imported from another library. Function code syms that | |
| 7068 | are really in the library we must leave global to prevent the | |
| 7069 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7070 | force_local = (!fh->elf.def_regular |
| 7071 | || fdh == NULL | |
| 7072 | || !fdh->elf.def_regular | |
| 7073 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7074 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7075 | ||
| b34976b6 | 7076 | return TRUE; |
| e86ce104 | 7077 | } |
| 40b8271b | 7078 | |
| a4b6fadd AM |
7079 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7080 | { | |
| 7081 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7082 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7083 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7084 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7085 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7086 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7087 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7088 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7089 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7090 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7091 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7092 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7093 | }; | |
| 7094 | ||
| e86ce104 | 7095 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7096 | this hook to a) provide some gcc support functions, and b) transfer |
| 7097 | dynamic linking information gathered so far on function code symbol | |
| 7098 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7099 | |
| b34976b6 | 7100 | static bfd_boolean |
| 4ce794b7 AM |
7101 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7102 | struct bfd_link_info *info) | |
| e86ce104 AM |
7103 | { |
| 7104 | struct ppc_link_hash_table *htab; | |
| 7105 | ||
| 7106 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7107 | if (htab == NULL) |
| 7108 | return FALSE; | |
| 7109 | ||
| b32547cd AM |
7110 | /* Provide any missing _save* and _rest* functions. */ |
| 7111 | if (htab->sfpr != NULL) | |
| 7112 | { | |
| 7113 | unsigned int i; | |
| 7114 | ||
| 7115 | htab->sfpr->size = 0; | |
| 7116 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7117 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7118 | return FALSE; | |
| 7119 | if (htab->sfpr->size == 0) | |
| 7120 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7121 | } | |
| 7122 | ||
| 7123 | if (bfd_link_relocatable (info)) | |
| 7124 | return TRUE; | |
| 7125 | ||
| 7126 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7127 | { |
| 7128 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7129 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7130 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7131 | if (!htab->elf.hgot->def_regular |
| 7132 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7133 | { | |
| 7134 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7135 | htab->elf.hgot->root.u.def.value = 0; | |
| 7136 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7137 | htab->elf.hgot->def_regular = 1; | |
| 7138 | htab->elf.hgot->root.linker_def = 1; | |
| 7139 | } | |
| dba6fa9b | 7140 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7141 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7142 | | STV_HIDDEN); | |
| 7143 | } | |
| c66bb0ee | 7144 | |
| 8c5b4e52 AM |
7145 | if (htab->need_func_desc_adj) |
| 7146 | { | |
| 7147 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7148 | htab->need_func_desc_adj = 0; | |
| 7149 | } | |
| 805fc799 | 7150 | |
| b34976b6 | 7151 | return TRUE; |
| e86ce104 AM |
7152 | } |
| 7153 | ||
| 8a2058b5 AM |
7154 | /* Return true if we have dynamic relocs against H that apply to |
| 7155 | read-only sections. */ | |
| a345bc8d AM |
7156 | |
| 7157 | static bfd_boolean | |
| 7158 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7159 | { | |
| 7160 | struct ppc_link_hash_entry *eh; | |
| 7161 | struct elf_dyn_relocs *p; | |
| 7162 | ||
| 7163 | eh = (struct ppc_link_hash_entry *) h; | |
| 7164 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7165 | { | |
| 7166 | asection *s = p->sec->output_section; | |
| 7167 | ||
| 7168 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7169 | return TRUE; | |
| 7170 | } | |
| 7171 | return FALSE; | |
| 7172 | } | |
| 7173 | ||
| d311bc8b AM |
7174 | /* Return true if we have dynamic relocs against H or any of its weak |
| 7175 | aliases, that apply to read-only sections. */ | |
| 7176 | ||
| 7177 | static bfd_boolean | |
| 7178 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7179 | { | |
| 7180 | struct ppc_link_hash_entry *eh; | |
| 7181 | ||
| 7182 | eh = (struct ppc_link_hash_entry *) h; | |
| 7183 | do | |
| 7184 | { | |
| 7185 | if (readonly_dynrelocs (&eh->elf)) | |
| 7186 | return TRUE; | |
| 7187 | eh = eh->weakref; | |
| 7188 | } while (eh != NULL && &eh->elf != h); | |
| 7189 | ||
| 7190 | return FALSE; | |
| 7191 | } | |
| 8a2058b5 | 7192 | |
| 8a9e8e72 AM |
7193 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7194 | ||
| 7195 | static bfd_boolean | |
| 7196 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7197 | { | |
| 7198 | struct elf_dyn_relocs *p; | |
| 7199 | ||
| 7200 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7201 | if (p->pc_count != 0) | |
| 7202 | return TRUE; | |
| 7203 | return FALSE; | |
| 7204 | } | |
| 7205 | ||
| 8a2058b5 AM |
7206 | /* Return true if a global entry stub will be created for H. Valid |
| 7207 | for ELFv2 before plt entries have been allocated. */ | |
| 7208 | ||
| 7209 | static bfd_boolean | |
| 7210 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7211 | { | |
| 7212 | struct plt_entry *pent; | |
| 7213 | ||
| 7214 | if (!h->pointer_equality_needed | |
| 7215 | || h->def_regular) | |
| 7216 | return FALSE; | |
| 7217 | ||
| 7218 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7219 | if (pent->plt.refcount > 0 | |
| 7220 | && pent->addend == 0) | |
| 7221 | return TRUE; | |
| 7222 | ||
| 7223 | return FALSE; | |
| 7224 | } | |
| 7225 | ||
| e86ce104 AM |
7226 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7227 | regular object. The current definition is in some section of the | |
| 7228 | dynamic object, but we're not including those sections. We have to | |
| 7229 | change the definition to something the rest of the link can | |
| 7230 | understand. */ | |
| 7231 | ||
| b34976b6 | 7232 | static bfd_boolean |
| 4ce794b7 AM |
7233 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7234 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7235 | { |
| 7236 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7237 | asection *s, *srel; |
| e86ce104 AM |
7238 | |
| 7239 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7240 | if (htab == NULL) |
| 7241 | return FALSE; | |
| e86ce104 AM |
7242 | |
| 7243 | /* Deal with function syms. */ | |
| 7244 | if (h->type == STT_FUNC | |
| e054468f | 7245 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7246 | || h->needs_plt) |
| e86ce104 AM |
7247 | { |
| 7248 | /* Clear procedure linkage table information for any symbol that | |
| 7249 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7250 | struct plt_entry *ent; |
| 7251 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7252 | if (ent->plt.refcount > 0) | |
| 7253 | break; | |
| 8387904d | 7254 | if (ent == NULL |
| e054468f AM |
7255 | || (h->type != STT_GNU_IFUNC |
| 7256 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7257 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| a4b6fadd AM |
7258 | && h->root.type == bfd_link_hash_undefweak))) |
| 7259 | || ((struct ppc_link_hash_entry *) h)->save_res) | |
| 40b8271b | 7260 | { |
| 411e1bfb | 7261 | h->plt.plist = NULL; |
| f5385ebf | 7262 | h->needs_plt = 0; |
| d1eca1e4 | 7263 | h->pointer_equality_needed = 0; |
| 40b8271b | 7264 | } |
| 8a2058b5 | 7265 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7266 | { |
| d1eca1e4 AM |
7267 | /* Taking a function's address in a read/write section |
| 7268 | doesn't require us to define the function symbol in the | |
| 7269 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7270 | be used instead. The reason we prefer a few more dynamic |
| 7271 | relocs is that calling via a global entry stub costs a | |
| 7272 | few more instructions, and pointer_equality_needed causes | |
| 7273 | extra work in ld.so when resolving these symbols. */ | |
| 7274 | if (global_entry_stub (h) | |
| d311bc8b | 7275 | && !alias_readonly_dynrelocs (h)) |
| d1eca1e4 AM |
7276 | { |
| 7277 | h->pointer_equality_needed = 0; | |
| 8a2058b5 AM |
7278 | /* After adjust_dynamic_symbol, non_got_ref set in |
| 7279 | the non-pic case means that dyn_relocs for this | |
| 7280 | symbol should be discarded. */ | |
| d1eca1e4 AM |
7281 | h->non_got_ref = 0; |
| 7282 | } | |
| 7283 | ||
| a345bc8d AM |
7284 | /* If making a plt entry, then we don't need copy relocs. */ |
| 7285 | return TRUE; | |
| 7286 | } | |
| 5bd4f169 | 7287 | } |
| bbd7ec4a | 7288 | else |
| 411e1bfb | 7289 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7290 | |
| 7291 | /* If this is a weak symbol, and there is a real definition, the | |
| 7292 | processor independent code will have arranged for us to see the | |
| 7293 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7294 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7295 | { |
| f6e332e6 AM |
7296 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7297 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7298 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7299 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7300 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7301 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7302 | return TRUE; |
| 5bd4f169 AM |
7303 | } |
| 7304 | ||
| 5bd4f169 AM |
7305 | /* If we are creating a shared library, we must presume that the |
| 7306 | only references to the symbol are via the global offset table. | |
| 7307 | For such cases we need not do anything here; the relocations will | |
| 7308 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7309 | if (bfd_link_pic (info)) |
| b34976b6 | 7310 | return TRUE; |
| 5bd4f169 | 7311 | |
| 65f38f15 AM |
7312 | /* If there are no references to this symbol that do not use the |
| 7313 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7314 | if (!h->non_got_ref) |
| b34976b6 | 7315 | return TRUE; |
| 65f38f15 | 7316 | |
| b186458a | 7317 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7318 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7319 | |
| d93d1c80 AM |
7320 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7321 | || info->nocopyreloc | |
| a127494f | 7322 | |
| d93d1c80 AM |
7323 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7324 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| d311bc8b | 7325 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7326 | |
| d93d1c80 AM |
7327 | /* Protected variables do not work with .dynbss. The copy in |
| 7328 | .dynbss won't be used by the shared library with the protected | |
| 7329 | definition for the variable. Text relocations are preferable | |
| 7330 | to an incorrect program. */ | |
| 7331 | || h->protected_def) | |
| a127494f AM |
7332 | { |
| 7333 | h->non_got_ref = 0; | |
| 7334 | return TRUE; | |
| 7335 | } | |
| 7336 | ||
| 5d35169e | 7337 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7338 | { |
| 7339 | /* We should never get here, but unfortunately there are versions | |
| 7340 | of gcc out there that improperly (for this ABI) put initialized | |
| 7341 | function pointers, vtable refs and suchlike in read-only | |
| 7342 | sections. Allow them to proceed, but warn that this might | |
| 7343 | break at runtime. */ | |
| 25f53a85 | 7344 | info->callbacks->einfo |
| bc30df16 | 7345 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7346 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7347 | h->root.root.string); |
| 7348 | } | |
| 5d35169e AM |
7349 | |
| 7350 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7351 | is not a function. */ | |
| 7352 | ||
| 5bd4f169 AM |
7353 | /* We must allocate the symbol in our .dynbss section, which will |
| 7354 | become part of the .bss section of the executable. There will be | |
| 7355 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7356 | object will contain position independent code, so all references | |
| 7357 | from the dynamic object to this symbol will go through the global | |
| 7358 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7359 | determine the address it must put in the global offset table, so | |
| 7360 | both the dynamic object and the regular object will refer to the | |
| 7361 | same memory location for the variable. */ | |
| 5bd4f169 | 7362 | |
| 04c9666a AM |
7363 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7364 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7365 | runtime process image. We need to remember the offset into the |
| 7366 | .rela.bss section we are going to use. */ | |
| 5474d94f AM |
7367 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7368 | { | |
| 7369 | s = htab->elf.sdynrelro; | |
| 7370 | srel = htab->elf.sreldynrelro; | |
| 7371 | } | |
| 7372 | else | |
| 7373 | { | |
| 7374 | s = htab->elf.sdynbss; | |
| 7375 | srel = htab->elf.srelbss; | |
| 7376 | } | |
| 1d7e9d18 | 7377 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7378 | { |
| 5474d94f | 7379 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7380 | h->needs_copy = 1; |
| 5bd4f169 AM |
7381 | } |
| 7382 | ||
| 6cabe1ea | 7383 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7384 | } |
| 7385 | ||
| e86ce104 AM |
7386 | /* If given a function descriptor symbol, hide both the function code |
| 7387 | sym and the descriptor. */ | |
| 7388 | static void | |
| 4ce794b7 AM |
7389 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7390 | struct elf_link_hash_entry *h, | |
| 7391 | bfd_boolean force_local) | |
| e86ce104 | 7392 | { |
| 34814b9f | 7393 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7394 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7395 | ||
| 34814b9f AM |
7396 | eh = (struct ppc_link_hash_entry *) h; |
| 7397 | if (eh->is_func_descriptor) | |
| e86ce104 | 7398 | { |
| 34814b9f | 7399 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7400 | |
| 721956f4 | 7401 | if (fh == NULL) |
| d1329ca3 AM |
7402 | { |
| 7403 | const char *p, *q; | |
| b8ac2841 | 7404 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7405 | char save; |
| 7406 | ||
| 7407 | /* We aren't supposed to use alloca in BFD because on | |
| 7408 | systems which do not have alloca the version in libiberty | |
| 7409 | calls xmalloc, which might cause the program to crash | |
| 7410 | when it runs out of memory. This function doesn't have a | |
| 7411 | return status, so there's no way to gracefully return an | |
| 7412 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7413 | accessed; It's either a string in an ELF string table, |
| 7414 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7415 | |
| 34814b9f | 7416 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7417 | save = *p; |
| 7418 | *(char *) p = '.'; | |
| 34814b9f | 7419 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7420 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7421 | *(char *) p = save; |
| 7422 | ||
| 7423 | /* Unfortunately, if it so happens that the string we were | |
| 7424 | looking for was allocated immediately before this string, | |
| 7425 | then we overwrote the string terminator. That's the only | |
| 7426 | reason the lookup should fail. */ | |
| 7427 | if (fh == NULL) | |
| 7428 | { | |
| 34814b9f AM |
7429 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7430 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7431 | --q, --p; |
| 34814b9f AM |
7432 | if (q < eh->elf.root.root.string && *p == '.') |
| 7433 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7434 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7435 | } |
| 7436 | if (fh != NULL) | |
| 7437 | { | |
| 34814b9f AM |
7438 | eh->oh = fh; |
| 7439 | fh->oh = eh; | |
| d1329ca3 AM |
7440 | } |
| 7441 | } | |
| e86ce104 | 7442 | if (fh != NULL) |
| 34814b9f | 7443 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7444 | } |
| 7445 | } | |
| 7446 | ||
| 411e1bfb | 7447 | static bfd_boolean |
| 8843416a AM |
7448 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7449 | Elf_Internal_Sym **symp, | |
| 7450 | asection **symsecp, | |
| f961d9dd | 7451 | unsigned char **tls_maskp, |
| 8843416a AM |
7452 | Elf_Internal_Sym **locsymsp, |
| 7453 | unsigned long r_symndx, | |
| 7454 | bfd *ibfd) | |
| 411e1bfb | 7455 | { |
| 0ffa91dd | 7456 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7457 | |
| 7458 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7459 | { | |
| 7460 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7461 | struct elf_link_hash_entry *h; | |
| 7462 | ||
| 7463 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7464 | h = elf_follow_link (h); |
| 411e1bfb AM |
7465 | |
| 7466 | if (hp != NULL) | |
| 7467 | *hp = h; | |
| 7468 | ||
| 7469 | if (symp != NULL) | |
| 7470 | *symp = NULL; | |
| 7471 | ||
| 7472 | if (symsecp != NULL) | |
| 7473 | { | |
| 7474 | asection *symsec = NULL; | |
| 7475 | if (h->root.type == bfd_link_hash_defined | |
| 7476 | || h->root.type == bfd_link_hash_defweak) | |
| 7477 | symsec = h->root.u.def.section; | |
| 7478 | *symsecp = symsec; | |
| 7479 | } | |
| 7480 | ||
| e7b938ca | 7481 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7482 | { |
| 7483 | struct ppc_link_hash_entry *eh; | |
| 7484 | ||
| 7485 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7486 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7487 | } |
| 7488 | } | |
| 7489 | else | |
| 7490 | { | |
| 7491 | Elf_Internal_Sym *sym; | |
| 7492 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7493 | ||
| 7494 | if (locsyms == NULL) | |
| 7495 | { | |
| 7496 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7497 | if (locsyms == NULL) | |
| 7498 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7499 | symtab_hdr->sh_info, | |
| 7500 | 0, NULL, NULL, NULL); | |
| 7501 | if (locsyms == NULL) | |
| 7502 | return FALSE; | |
| 7503 | *locsymsp = locsyms; | |
| 7504 | } | |
| 7505 | sym = locsyms + r_symndx; | |
| 7506 | ||
| 7507 | if (hp != NULL) | |
| 7508 | *hp = NULL; | |
| 7509 | ||
| 7510 | if (symp != NULL) | |
| 7511 | *symp = sym; | |
| 7512 | ||
| 7513 | if (symsecp != NULL) | |
| cb33740c | 7514 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7515 | |
| e7b938ca | 7516 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7517 | { |
| 7518 | struct got_entry **lgot_ents; | |
| f961d9dd | 7519 | unsigned char *tls_mask; |
| 411e1bfb | 7520 | |
| e7b938ca | 7521 | tls_mask = NULL; |
| 411e1bfb AM |
7522 | lgot_ents = elf_local_got_ents (ibfd); |
| 7523 | if (lgot_ents != NULL) | |
| 7524 | { | |
| e054468f AM |
7525 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7526 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7527 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7528 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7529 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7530 | } |
| e7b938ca | 7531 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7532 | } |
| 7533 | } | |
| 7534 | return TRUE; | |
| 7535 | } | |
| 7536 | ||
| e7b938ca | 7537 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7538 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7539 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7540 | |
| 7541 | static int | |
| f961d9dd | 7542 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7543 | unsigned long *toc_symndx, |
| 7544 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7545 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7546 | const Elf_Internal_Rela *rel, |
| 7547 | bfd *ibfd) | |
| 411e1bfb AM |
7548 | { |
| 7549 | unsigned long r_symndx; | |
| 0d4792f7 | 7550 | int next_r; |
| 411e1bfb AM |
7551 | struct elf_link_hash_entry *h; |
| 7552 | Elf_Internal_Sym *sym; | |
| 7553 | asection *sec; | |
| 7554 | bfd_vma off; | |
| 7555 | ||
| 7556 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7557 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7558 | return 0; |
| 411e1bfb | 7559 | |
| e7b938ca | 7560 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7561 | || sec == NULL |
| 6bee8834 | 7562 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7563 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7564 | return 1; |
| 411e1bfb AM |
7565 | |
| 7566 | /* Look inside a TOC section too. */ | |
| 7567 | if (h != NULL) | |
| 7568 | { | |
| 7569 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7570 | off = h->root.u.def.value; | |
| 7571 | } | |
| 7572 | else | |
| 7573 | off = sym->st_value; | |
| 7574 | off += rel->r_addend; | |
| 7575 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7576 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7577 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7578 | if (toc_symndx != NULL) |
| 7579 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7580 | if (toc_addend != NULL) |
| 7581 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7582 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7583 | return 0; | |
| 854b41e7 | 7584 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7585 | && (next_r == -1 || next_r == -2)) |
| 7586 | return 1 - next_r; | |
| 951fd09b | 7587 | return 1; |
| 411e1bfb AM |
7588 | } |
| 7589 | ||
| 3b421ab3 AM |
7590 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7591 | ||
| 7592 | static struct tocsave_entry * | |
| 7593 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7594 | enum insert_option insert, | |
| 7595 | Elf_Internal_Sym **local_syms, | |
| 7596 | const Elf_Internal_Rela *irela, | |
| 7597 | bfd *ibfd) | |
| 7598 | { | |
| 7599 | unsigned long r_indx; | |
| 7600 | struct elf_link_hash_entry *h; | |
| 7601 | Elf_Internal_Sym *sym; | |
| 7602 | struct tocsave_entry ent, *p; | |
| 7603 | hashval_t hash; | |
| 7604 | struct tocsave_entry **slot; | |
| 7605 | ||
| 7606 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7607 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7608 | return NULL; | |
| 7609 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7610 | { | |
| 4eca0228 | 7611 | _bfd_error_handler |
| 3b421ab3 AM |
7612 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); |
| 7613 | return NULL; | |
| 7614 | } | |
| 7615 | ||
| 7616 | if (h != NULL) | |
| 7617 | ent.offset = h->root.u.def.value; | |
| 7618 | else | |
| 7619 | ent.offset = sym->st_value; | |
| 7620 | ent.offset += irela->r_addend; | |
| 7621 | ||
| 7622 | hash = tocsave_htab_hash (&ent); | |
| 7623 | slot = ((struct tocsave_entry **) | |
| 7624 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7625 | if (slot == NULL) | |
| 7626 | return NULL; | |
| 7627 | ||
| 7628 | if (*slot == NULL) | |
| 7629 | { | |
| 7630 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7631 | if (p == NULL) | |
| 7632 | return NULL; | |
| 7633 | *p = ent; | |
| 7634 | *slot = p; | |
| 7635 | } | |
| 7636 | return *slot; | |
| 7637 | } | |
| 7638 | ||
| 754021d0 | 7639 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7640 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7641 | |
| 7642 | static bfd_boolean | |
| 7643 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7644 | { | |
| 7645 | struct ppc_link_hash_entry *eh; | |
| 7646 | asection *sym_sec; | |
| 74f0fb50 | 7647 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7648 | |
| 7649 | if (h->root.type == bfd_link_hash_indirect) | |
| 7650 | return TRUE; | |
| 7651 | ||
| 754021d0 AM |
7652 | if (h->root.type != bfd_link_hash_defined |
| 7653 | && h->root.type != bfd_link_hash_defweak) | |
| 7654 | return TRUE; | |
| 7655 | ||
| 7656 | eh = (struct ppc_link_hash_entry *) h; | |
| 7657 | if (eh->adjust_done) | |
| 7658 | return TRUE; | |
| 7659 | ||
| 7660 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7661 | opd = get_opd_info (sym_sec); |
| 7662 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7663 | { |
| 51aecdc5 | 7664 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7665 | if (adjust == -1) |
| 7666 | { | |
| 7667 | /* This entry has been deleted. */ | |
| b3fac117 | 7668 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7669 | if (dsec == NULL) |
| 7670 | { | |
| 7671 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7672 | if (discarded_section (dsec)) |
| 81688140 | 7673 | { |
| b3fac117 | 7674 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7675 | break; |
| 7676 | } | |
| 7677 | } | |
| 4025353c | 7678 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7679 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7680 | } |
| 7681 | else | |
| 7682 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7683 | eh->adjust_done = 1; |
| 7684 | } | |
| 7685 | return TRUE; | |
| 7686 | } | |
| 7687 | ||
| 8c1d1bb8 | 7688 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7689 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7690 | have already been determined. */ |
| 7691 | ||
| 7692 | static bfd_boolean | |
| 7693 | dec_dynrel_count (bfd_vma r_info, | |
| 7694 | asection *sec, | |
| 7695 | struct bfd_link_info *info, | |
| 7696 | Elf_Internal_Sym **local_syms, | |
| 7697 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7698 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7699 | { |
| 7700 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7701 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7702 | |
| 7703 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7704 | should be kept in sync with the code in check_relocs. */ | |
| 7705 | r_type = ELF64_R_TYPE (r_info); | |
| 7706 | switch (r_type) | |
| 7707 | { | |
| 7708 | default: | |
| 7709 | return TRUE; | |
| 7710 | ||
| 7711 | case R_PPC64_TPREL16: | |
| 7712 | case R_PPC64_TPREL16_LO: | |
| 7713 | case R_PPC64_TPREL16_HI: | |
| 7714 | case R_PPC64_TPREL16_HA: | |
| 7715 | case R_PPC64_TPREL16_DS: | |
| 7716 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7717 | case R_PPC64_TPREL16_HIGH: |
| 7718 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7719 | case R_PPC64_TPREL16_HIGHER: |
| 7720 | case R_PPC64_TPREL16_HIGHERA: | |
| 7721 | case R_PPC64_TPREL16_HIGHEST: | |
| 7722 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 7723 | if (!bfd_link_pic (info)) |
| 8c1d1bb8 AM |
7724 | return TRUE; |
| 7725 | ||
| 7726 | case R_PPC64_TPREL64: | |
| 7727 | case R_PPC64_DTPMOD64: | |
| 7728 | case R_PPC64_DTPREL64: | |
| 7729 | case R_PPC64_ADDR64: | |
| 7730 | case R_PPC64_REL30: | |
| 7731 | case R_PPC64_REL32: | |
| 7732 | case R_PPC64_REL64: | |
| 7733 | case R_PPC64_ADDR14: | |
| 7734 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7735 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7736 | case R_PPC64_ADDR16: | |
| 7737 | case R_PPC64_ADDR16_DS: | |
| 7738 | case R_PPC64_ADDR16_HA: | |
| 7739 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7740 | case R_PPC64_ADDR16_HIGH: |
| 7741 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7742 | case R_PPC64_ADDR16_HIGHER: |
| 7743 | case R_PPC64_ADDR16_HIGHERA: | |
| 7744 | case R_PPC64_ADDR16_HIGHEST: | |
| 7745 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7746 | case R_PPC64_ADDR16_LO: | |
| 7747 | case R_PPC64_ADDR16_LO_DS: | |
| 7748 | case R_PPC64_ADDR24: | |
| 7749 | case R_PPC64_ADDR32: | |
| 7750 | case R_PPC64_UADDR16: | |
| 7751 | case R_PPC64_UADDR32: | |
| 7752 | case R_PPC64_UADDR64: | |
| 7753 | case R_PPC64_TOC: | |
| 7754 | break; | |
| 7755 | } | |
| 7756 | ||
| 7757 | if (local_syms != NULL) | |
| 7758 | { | |
| 7759 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7760 | bfd *ibfd = sec->owner; |
| 7761 | ||
| 7762 | r_symndx = ELF64_R_SYM (r_info); | |
| 7763 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7764 | return FALSE; | |
| 7765 | } | |
| 7766 | ||
| 0e1862bb | 7767 | if ((bfd_link_pic (info) |
| 1d483afe | 7768 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7769 | || (h != NULL |
| 198f1157 | 7770 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7771 | || h->root.type == bfd_link_hash_defweak |
| 7772 | || !h->def_regular)))) | |
| 7773 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7774 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7775 | && h != NULL |
| 7776 | && (h->root.type == bfd_link_hash_defweak | |
| 7777 | || !h->def_regular))) | |
| 7778 | ; | |
| 7779 | else | |
| 7780 | return TRUE; | |
| 7781 | ||
| 7782 | if (h != NULL) | |
| 6edfbbad | 7783 | { |
| 19e08130 AM |
7784 | struct elf_dyn_relocs *p; |
| 7785 | struct elf_dyn_relocs **pp; | |
| 7786 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7787 | ||
| 7788 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7789 | with local syms for a given section. Also, symbol flags are | |
| 7790 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7791 | report a dynreloc miscount. */ | |
| 7792 | if (*pp == NULL && info->gc_sections) | |
| 7793 | return TRUE; | |
| 7794 | ||
| 7795 | while ((p = *pp) != NULL) | |
| 60124e18 | 7796 | { |
| 19e08130 AM |
7797 | if (p->sec == sec) |
| 7798 | { | |
| 7799 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7800 | p->pc_count -= 1; | |
| 7801 | p->count -= 1; | |
| 7802 | if (p->count == 0) | |
| 7803 | *pp = p->next; | |
| 7804 | return TRUE; | |
| 7805 | } | |
| 7806 | pp = &p->next; | |
| 60124e18 | 7807 | } |
| 6edfbbad | 7808 | } |
| 19e08130 AM |
7809 | else |
| 7810 | { | |
| 7811 | struct ppc_dyn_relocs *p; | |
| 7812 | struct ppc_dyn_relocs **pp; | |
| 7813 | void *vpp; | |
| 7814 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7815 | |
| 19e08130 AM |
7816 | if (local_syms == NULL) |
| 7817 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7818 | if (sym_sec == NULL) | |
| 7819 | sym_sec = sec; | |
| c57da1a7 | 7820 | |
| 19e08130 AM |
7821 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7822 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7823 | ||
| 7824 | if (*pp == NULL && info->gc_sections) | |
| 7825 | return TRUE; | |
| 7826 | ||
| 7827 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7828 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7829 | { |
| 19e08130 AM |
7830 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7831 | { | |
| 7832 | p->count -= 1; | |
| 7833 | if (p->count == 0) | |
| 7834 | *pp = p->next; | |
| 7835 | return TRUE; | |
| 7836 | } | |
| 7837 | pp = &p->next; | |
| 8c1d1bb8 | 7838 | } |
| 8c1d1bb8 AM |
7839 | } |
| 7840 | ||
| 695344c0 | 7841 | /* xgettext:c-format */ |
| 8de848d8 | 7842 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7843 | sec->owner, sec); |
| 8c1d1bb8 AM |
7844 | bfd_set_error (bfd_error_bad_value); |
| 7845 | return FALSE; | |
| 7846 | } | |
| 7847 | ||
| 754021d0 AM |
7848 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7849 | only remove those associated with functions in discarded link-once | |
| 7850 | sections, or weakly defined functions that have been overridden. It | |
| 7851 | would be possible to remove many more entries for statically linked | |
| 7852 | applications. */ | |
| 7853 | ||
| b34976b6 | 7854 | bfd_boolean |
| e7d1c40c | 7855 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7856 | { |
| 7857 | bfd *ibfd; | |
| 754021d0 | 7858 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7859 | asection *need_pad = NULL; |
| e7d1c40c AM |
7860 | struct ppc_link_hash_table *htab; |
| 7861 | ||
| 7862 | htab = ppc_hash_table (info); | |
| 7863 | if (htab == NULL) | |
| 7864 | return FALSE; | |
| 1e2f5b6e | 7865 | |
| c72f2fb2 | 7866 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7867 | { |
| 7868 | asection *sec; | |
| 7869 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7870 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7871 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7872 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7873 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7874 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7875 | |
| 854b41e7 AM |
7876 | if (!is_ppc64_elf (ibfd)) |
| 7877 | continue; | |
| 7878 | ||
| 1e2f5b6e | 7879 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7880 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7881 | continue; |
| 7882 | ||
| dbaa2011 | 7883 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7884 | continue; |
| 7885 | ||
| 1e2f5b6e AM |
7886 | if (sec->output_section == bfd_abs_section_ptr) |
| 7887 | continue; | |
| 7888 | ||
| 7889 | /* Look through the section relocs. */ | |
| 7890 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7891 | continue; | |
| 7892 | ||
| 6cdc0ccc | 7893 | local_syms = NULL; |
| 0ffa91dd | 7894 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7895 | |
| 7896 | /* Read the relocations. */ | |
| 4ce794b7 | 7897 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7898 | info->keep_memory); |
| 1e2f5b6e | 7899 | if (relstart == NULL) |
| b34976b6 | 7900 | return FALSE; |
| 1e2f5b6e AM |
7901 | |
| 7902 | /* First run through the relocs to check they are sane, and to | |
| 7903 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7904 | need_edit = FALSE; |
| 51aecdc5 | 7905 | broken = FALSE; |
| 3f764659 | 7906 | need_pad = sec; |
| 1e2f5b6e | 7907 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7908 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7909 | { |
| 04c9666a | 7910 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7911 | unsigned long r_symndx; |
| 7912 | asection *sym_sec; | |
| 7913 | struct elf_link_hash_entry *h; | |
| 7914 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7915 | bfd_vma offset; |
| 1e2f5b6e | 7916 | |
| 51aecdc5 | 7917 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7918 | only interested in the reloc pointing to a function entry |
| 7919 | point. */ | |
| 51aecdc5 AM |
7920 | offset = rel->r_offset; |
| 7921 | if (rel + 1 == relend | |
| 7922 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7923 | { |
| 7924 | /* If someone messes with .opd alignment then after a | |
| 7925 | "ld -r" we might have padding in the middle of .opd. | |
| 7926 | Also, there's nothing to prevent someone putting | |
| 7927 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7928 | optimization for them! */ |
| 3f764659 | 7929 | broken_opd: |
| 4eca0228 | 7930 | _bfd_error_handler |
| d003868e | 7931 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7932 | broken = TRUE; |
| 1e2f5b6e AM |
7933 | break; |
| 7934 | } | |
| 7935 | ||
| 50bc7936 AM |
7936 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7937 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7938 | { | |
| 4eca0228 | 7939 | _bfd_error_handler |
| 695344c0 | 7940 | /* xgettext:c-format */ |
| d003868e AM |
7941 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7942 | ibfd, r_type); | |
| 51aecdc5 | 7943 | broken = TRUE; |
| 50bc7936 AM |
7944 | break; |
| 7945 | } | |
| 7946 | ||
| 1e2f5b6e | 7947 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7948 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7949 | r_symndx, ibfd)) | |
| 50bc7936 | 7950 | goto error_ret; |
| 1e2f5b6e AM |
7951 | |
| 7952 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7953 | { | |
| 411e1bfb AM |
7954 | const char *sym_name; |
| 7955 | if (h != NULL) | |
| 7956 | sym_name = h->root.root.string; | |
| 7957 | else | |
| 26c61ae5 L |
7958 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7959 | sym_sec); | |
| 411e1bfb | 7960 | |
| 4eca0228 | 7961 | _bfd_error_handler |
| 695344c0 | 7962 | /* xgettext:c-format */ |
| d003868e AM |
7963 | (_("%B: undefined sym `%s' in .opd section"), |
| 7964 | ibfd, sym_name); | |
| 51aecdc5 | 7965 | broken = TRUE; |
| 1e2f5b6e AM |
7966 | break; |
| 7967 | } | |
| 7968 | ||
| 51020317 AM |
7969 | /* opd entries are always for functions defined in the |
| 7970 | current input bfd. If the symbol isn't defined in the | |
| 7971 | input bfd, then we won't be using the function in this | |
| 7972 | bfd; It must be defined in a linkonce section in another | |
| 7973 | bfd, or is weak. It's also possible that we are | |
| 7974 | discarding the function due to a linker script /DISCARD/, | |
| 7975 | which we test for via the output_section. */ | |
| 7976 | if (sym_sec->owner != ibfd | |
| 7977 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7978 | need_edit = TRUE; |
| 1e2f5b6e | 7979 | |
| 50bc7936 | 7980 | rel += 2; |
| 51aecdc5 AM |
7981 | if (rel + 1 == relend |
| 7982 | || (rel + 2 < relend | |
| 7983 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7984 | ++rel; | |
| 7985 | ||
| 7986 | if (rel == relend) | |
| 3f764659 JJ |
7987 | { |
| 7988 | if (sec->size == offset + 24) | |
| 7989 | { | |
| 7990 | need_pad = NULL; | |
| 7991 | break; | |
| 7992 | } | |
| 51aecdc5 | 7993 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7994 | { |
| 7995 | cnt_16b++; | |
| 7996 | break; | |
| 7997 | } | |
| 7998 | goto broken_opd; | |
| 7999 | } | |
| 3f764659 JJ |
8000 | else if (rel + 1 < relend |
| 8001 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 8002 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 8003 | { | |
| 51aecdc5 AM |
8004 | if (rel[0].r_offset == offset + 16) |
| 8005 | cnt_16b++; | |
| 8006 | else if (rel[0].r_offset != offset + 24) | |
| 8007 | goto broken_opd; | |
| 3f764659 JJ |
8008 | } |
| 8009 | else | |
| 8010 | goto broken_opd; | |
| 1e2f5b6e AM |
8011 | } |
| 8012 | ||
| e7d1c40c | 8013 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 8014 | |
| 51aecdc5 | 8015 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
8016 | { |
| 8017 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 8018 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 8019 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 8020 | bfd_byte *new_contents; |
| 74f0fb50 AM |
8021 | bfd_size_type amt; |
| 8022 | ||
| 983bddc8 | 8023 | new_contents = NULL; |
| 51aecdc5 | 8024 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 8025 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 8026 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
8027 | if (opd->adjust == NULL) |
| 8028 | return FALSE; | |
| 8029 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
8030 | |
| 8031 | /* This seems a waste of time as input .opd sections are all | |
| 8032 | zeros as generated by gcc, but I suppose there's no reason | |
| 8033 | this will always be so. We might start putting something in | |
| 8034 | the third word of .opd entries. */ | |
| 8035 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 8036 | { | |
| eea6121a AM |
8037 | bfd_byte *loc; |
| 8038 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 8039 | { |
| eea6121a AM |
8040 | if (loc != NULL) |
| 8041 | free (loc); | |
| 50bc7936 | 8042 | error_ret: |
| 6cdc0ccc AM |
8043 | if (local_syms != NULL |
| 8044 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8045 | free (local_syms); | |
| 6cdc0ccc AM |
8046 | if (elf_section_data (sec)->relocs != relstart) |
| 8047 | free (relstart); | |
| b34976b6 | 8048 | return FALSE; |
| 6cdc0ccc | 8049 | } |
| 1e2f5b6e AM |
8050 | sec->contents = loc; |
| 8051 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8052 | } | |
| 8053 | ||
| 8054 | elf_section_data (sec)->relocs = relstart; | |
| 8055 | ||
| 3f764659 | 8056 | new_contents = sec->contents; |
| 3f764659 JJ |
8057 | if (add_aux_fields) |
| 8058 | { | |
| 8059 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 8060 | if (new_contents == NULL) | |
| 8061 | return FALSE; | |
| 51aecdc5 | 8062 | need_pad = NULL; |
| 3f764659 | 8063 | } |
| b4f4e59f AM |
8064 | wptr = new_contents; |
| 8065 | rptr = sec->contents; | |
| 1e2f5b6e | 8066 | write_rel = relstart; |
| 51aecdc5 | 8067 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8068 | { |
| 50bc7936 AM |
8069 | unsigned long r_symndx; |
| 8070 | asection *sym_sec; | |
| 8071 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8072 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8073 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8074 | long opd_ent_size; |
| 8075 | Elf_Internal_Rela *next_rel; | |
| 8076 | bfd_boolean skip; | |
| 50bc7936 AM |
8077 | |
| 8078 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8079 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8080 | r_symndx, ibfd)) |
| 50bc7936 AM |
8081 | goto error_ret; |
| 8082 | ||
| 51aecdc5 AM |
8083 | next_rel = rel + 2; |
| 8084 | if (next_rel + 1 == relend | |
| 8085 | || (next_rel + 2 < relend | |
| 8086 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8087 | ++next_rel; | |
| 8088 | ||
| 8089 | /* See if the .opd entry is full 24 byte or | |
| 8090 | 16 byte (with fd_aux entry overlapped with next | |
| 8091 | fd_func). */ | |
| 8092 | opd_ent_size = 24; | |
| 8093 | if (next_rel == relend) | |
| 1e2f5b6e | 8094 | { |
| 51aecdc5 | 8095 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8096 | opd_ent_size = 16; |
| 51aecdc5 AM |
8097 | } |
| 8098 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8099 | opd_ent_size = 16; | |
| 3f764659 | 8100 | |
| 51aecdc5 AM |
8101 | if (h != NULL |
| 8102 | && h->root.root.string[0] == '.') | |
| 8103 | { | |
| 8c5b4e52 AM |
8104 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8105 | if (fdh != NULL) | |
| 8106 | { | |
| 8107 | fdh = ppc_follow_link (fdh); | |
| 8108 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8109 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8110 | fdh = NULL; | |
| 8111 | } | |
| 51aecdc5 | 8112 | } |
| 1e2f5b6e | 8113 | |
| 51aecdc5 AM |
8114 | skip = (sym_sec->owner != ibfd |
| 8115 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8116 | if (skip) | |
| 8117 | { | |
| 8118 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8119 | { |
| 51aecdc5 AM |
8120 | /* Arrange for the function descriptor sym |
| 8121 | to be dropped. */ | |
| 8122 | fdh->elf.root.u.def.value = 0; | |
| 8123 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8124 | } |
| 51aecdc5 | 8125 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8126 | |
| 0e1862bb | 8127 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8128 | rel = next_rel; |
| 8129 | else | |
| 8130 | while (1) | |
| 8131 | { | |
| 8132 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8133 | NULL, h, sym)) | |
| 8134 | goto error_ret; | |
| 754021d0 | 8135 | |
| 51aecdc5 AM |
8136 | if (++rel == next_rel) |
| 8137 | break; | |
| 1e2f5b6e | 8138 | |
| 51aecdc5 AM |
8139 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8140 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8141 | r_symndx, ibfd)) | |
| 8142 | goto error_ret; | |
| 8143 | } | |
| 50bc7936 AM |
8144 | } |
| 8145 | else | |
| 1e2f5b6e | 8146 | { |
| 51aecdc5 AM |
8147 | /* We'll be keeping this opd entry. */ |
| 8148 | long adjust; | |
| 8149 | ||
| 8150 | if (fdh != NULL) | |
| 8151 | { | |
| 8152 | /* Redefine the function descriptor symbol to | |
| 8153 | this location in the opd section. It is | |
| 8154 | necessary to update the value here rather | |
| 8155 | than using an array of adjustments as we do | |
| 8156 | for local symbols, because various places | |
| 8157 | in the generic ELF code use the value | |
| 8158 | stored in u.def.value. */ | |
| 8159 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8160 | fdh->adjust_done = 1; | |
| 8161 | } | |
| 8162 | ||
| 8163 | /* Local syms are a bit tricky. We could | |
| 8164 | tweak them as they can be cached, but | |
| 8165 | we'd need to look through the local syms | |
| 8166 | for the function descriptor sym which we | |
| 8167 | don't have at the moment. So keep an | |
| 8168 | array of adjustments. */ | |
| 8169 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8170 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8171 | ||
| 8172 | if (wptr != rptr) | |
| 8173 | memcpy (wptr, rptr, opd_ent_size); | |
| 8174 | wptr += opd_ent_size; | |
| 8175 | if (add_aux_fields && opd_ent_size == 16) | |
| 8176 | { | |
| 8177 | memset (wptr, '\0', 8); | |
| 8178 | wptr += 8; | |
| 8179 | } | |
| 8180 | ||
| 50bc7936 | 8181 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8182 | new opd entries. */ |
| 8183 | for ( ; rel != next_rel; ++rel) | |
| 8184 | { | |
| 8185 | rel->r_offset += adjust; | |
| 8186 | if (write_rel != rel) | |
| 8187 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8188 | ++write_rel; | |
| 8189 | } | |
| 1e2f5b6e | 8190 | } |
| 51aecdc5 AM |
8191 | |
| 8192 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8193 | } |
| 8194 | ||
| 3f764659 | 8195 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8196 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8197 | if (add_aux_fields) |
| 8198 | { | |
| 8199 | free (sec->contents); | |
| 8200 | sec->contents = new_contents; | |
| 8201 | } | |
| 8202 | ||
| 05bf9422 | 8203 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8204 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8205 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8206 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8207 | some_edited = TRUE; |
| 1e2f5b6e | 8208 | } |
| 6cdc0ccc | 8209 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8210 | free (relstart); |
| 6cdc0ccc | 8211 | |
| 411e1bfb AM |
8212 | if (local_syms != NULL |
| 8213 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8214 | { | |
| 8215 | if (!info->keep_memory) | |
| 8216 | free (local_syms); | |
| 8217 | else | |
| 8218 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8219 | } | |
| 8220 | } | |
| 8221 | ||
| 754021d0 AM |
8222 | if (some_edited) |
| 8223 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8224 | ||
| 3f764659 JJ |
8225 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8226 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8227 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8228 | { |
| 8229 | bfd_byte *p; | |
| 8230 | ||
| 8231 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8232 | { | |
| 8233 | BFD_ASSERT (need_pad->size > 0); | |
| 8234 | ||
| 8235 | p = bfd_malloc (need_pad->size + 8); | |
| 8236 | if (p == NULL) | |
| 8237 | return FALSE; | |
| 699733f6 | 8238 | |
| 3f764659 JJ |
8239 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8240 | p, 0, need_pad->size)) | |
| 8241 | return FALSE; | |
| 8242 | ||
| 8243 | need_pad->contents = p; | |
| 8244 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8245 | } | |
| 8246 | else | |
| 8247 | { | |
| 8248 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8249 | if (p == NULL) | |
| 8250 | return FALSE; | |
| 8251 | ||
| 8252 | need_pad->contents = p; | |
| 8253 | } | |
| 8254 | ||
| 8255 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8256 | need_pad->size += 8; | |
| 8257 | } | |
| 8258 | ||
| 411e1bfb AM |
8259 | return TRUE; |
| 8260 | } | |
| 8261 | ||
| e1918d23 | 8262 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8263 | |
| e1918d23 | 8264 | asection * |
| e7d1c40c | 8265 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8266 | { |
| 411e1bfb AM |
8267 | struct ppc_link_hash_table *htab; |
| 8268 | ||
| 411e1bfb | 8269 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8270 | if (htab == NULL) |
| 8271 | return NULL; | |
| 8272 | ||
| ee67d69a AM |
8273 | if (abiversion (info->output_bfd) == 1) |
| 8274 | htab->opd_abi = 1; | |
| 8275 | ||
| e7d1c40c | 8276 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8277 | htab->do_multi_toc = 0; |
| 8278 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8279 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8280 | |
| 3a71aa26 AM |
8281 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8282 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8283 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8284 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8285 | if (htab->tls_get_addr != NULL) | |
| 8286 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8287 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8288 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8289 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8290 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8291 | { |
| 8292 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8293 | ||
| 8294 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8295 | FALSE, FALSE, TRUE); | |
| 8296 | if (opt != NULL) | |
| 8297 | func_desc_adjust (opt, info); | |
| 8298 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8299 | FALSE, FALSE, TRUE); | |
| 8300 | if (opt_fd != NULL | |
| 8301 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8302 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8303 | { | |
| 8304 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8305 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8306 | be calling __tls_get_addr via a plt call stub, then | |
| 8307 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8308 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8309 | if (htab->elf.dynamic_sections_created | |
| 8310 | && tga_fd != NULL | |
| 8311 | && (tga_fd->type == STT_FUNC | |
| 8312 | || tga_fd->needs_plt) | |
| 8313 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8314 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8315 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8316 | { | |
| 8317 | struct plt_entry *ent; | |
| 8318 | ||
| 8319 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8320 | if (ent->plt.refcount > 0) | |
| 8321 | break; | |
| 8322 | if (ent != NULL) | |
| 8323 | { | |
| 8324 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8325 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8326 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8327 | opt_fd->mark = 1; |
| a7f2871e AM |
8328 | if (opt_fd->dynindx != -1) |
| 8329 | { | |
| 8330 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8331 | opt_fd->dynindx = -1; | |
| 8332 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8333 | opt_fd->dynstr_index); | |
| 8334 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8335 | return NULL; |
| a7f2871e AM |
8336 | } |
| 8337 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8338 | tga = &htab->tls_get_addr->elf; | |
| 8339 | if (opt != NULL && tga != NULL) | |
| 8340 | { | |
| 8341 | tga->root.type = bfd_link_hash_indirect; | |
| 8342 | tga->root.u.i.link = &opt->root; | |
| 8343 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8344 | opt->mark = 1; |
| a7f2871e AM |
8345 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8346 | tga->forced_local); | |
| 8347 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8348 | } | |
| 8349 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8350 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8351 | if (htab->tls_get_addr != NULL) | |
| 8352 | { | |
| 8353 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8354 | htab->tls_get_addr->is_func = 1; | |
| 8355 | } | |
| 8356 | } | |
| 8357 | } | |
| 8358 | } | |
| 7c9cf415 AM |
8359 | else if (htab->params->tls_get_addr_opt < 0) |
| 8360 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8361 | } |
| 33c0ec9d | 8362 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8363 | } |
| 8387904d | 8364 | |
| 3a71aa26 AM |
8365 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8366 | HASH1 or HASH2. */ | |
| 8387904d | 8367 | |
| 3a71aa26 AM |
8368 | static bfd_boolean |
| 8369 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8370 | const Elf_Internal_Rela *rel, | |
| 8371 | const struct ppc_link_hash_entry *hash1, | |
| 8372 | const struct ppc_link_hash_entry *hash2) | |
| 8373 | { | |
| 8374 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8375 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8376 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8377 | ||
| e054468f | 8378 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8379 | { |
| 3a71aa26 AM |
8380 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8381 | struct elf_link_hash_entry *h; | |
| 8387904d | 8382 | |
| 3a71aa26 | 8383 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8384 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8385 | if (h == &hash1->elf || h == &hash2->elf) |
| 8386 | return TRUE; | |
| a48ebf4d | 8387 | } |
| 3a71aa26 | 8388 | return FALSE; |
| 951fd09b | 8389 | } |
| 411e1bfb | 8390 | |
| 951fd09b AM |
8391 | /* Run through all the TLS relocs looking for optimization |
| 8392 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8393 | a preliminary section layout so that we know the TLS segment | |
| 8394 | offsets. We can't optimize earlier because some optimizations need | |
| 8395 | to know the tp offset, and we need to optimize before allocating | |
| 8396 | dynamic relocations. */ | |
| 8397 | ||
| 8398 | bfd_boolean | |
| 33c0ec9d | 8399 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8400 | { |
| 8401 | bfd *ibfd; | |
| 8402 | asection *sec; | |
| 8403 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8404 | unsigned char *toc_ref; |
| 102890f0 | 8405 | int pass; |
| 951fd09b | 8406 | |
| 3cbc1e5e | 8407 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8408 | return TRUE; |
| 8409 | ||
| 951fd09b | 8410 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8411 | if (htab == NULL) |
| 8412 | return FALSE; | |
| 8413 | ||
| 663a1470 AM |
8414 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8415 | entries involved with tls relocs, and check that tls relocs | |
| 8416 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8417 | such a call. If they are not, we can't do any tls optimization. | |
| 8418 | On the second pass twiddle tls_mask flags to notify | |
| 8419 | relocate_section that optimization can be done, and adjust got | |
| 8420 | and plt refcounts. */ | |
| 8421 | toc_ref = NULL; | |
| 8422 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8423 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8424 | { |
| 8425 | Elf_Internal_Sym *locsyms = NULL; | |
| 8426 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8427 | ||
| 102890f0 AM |
8428 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8429 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8430 | { | |
| 8431 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8432 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8433 | |
| 102890f0 AM |
8434 | /* Read the relocations. */ |
| 8435 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8436 | info->keep_memory); | |
| 8437 | if (relstart == NULL) | |
| 2915c55b JK |
8438 | { |
| 8439 | free (toc_ref); | |
| 8440 | return FALSE; | |
| 8441 | } | |
| 411e1bfb | 8442 | |
| 102890f0 AM |
8443 | relend = relstart + sec->reloc_count; |
| 8444 | for (rel = relstart; rel < relend; rel++) | |
| 8445 | { | |
| 8446 | enum elf_ppc64_reloc_type r_type; | |
| 8447 | unsigned long r_symndx; | |
| 8448 | struct elf_link_hash_entry *h; | |
| 8449 | Elf_Internal_Sym *sym; | |
| 8450 | asection *sym_sec; | |
| f961d9dd AM |
8451 | unsigned char *tls_mask; |
| 8452 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8453 | bfd_vma value; |
| 8454 | bfd_boolean ok_tprel, is_local; | |
| 8455 | long toc_ref_index = 0; | |
| 8456 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8457 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8458 | |
| 102890f0 AM |
8459 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8460 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8461 | r_symndx, ibfd)) | |
| 8462 | { | |
| 8463 | err_free_rel: | |
| 8464 | if (elf_section_data (sec)->relocs != relstart) | |
| 8465 | free (relstart); | |
| 8466 | if (toc_ref != NULL) | |
| 8467 | free (toc_ref); | |
| 8468 | if (locsyms != NULL | |
| 0ffa91dd | 8469 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8470 | != (unsigned char *) locsyms)) |
| 8471 | free (locsyms); | |
| 663a1470 | 8472 | return ret; |
| 102890f0 | 8473 | } |
| 411e1bfb | 8474 | |
| 102890f0 AM |
8475 | if (h != NULL) |
| 8476 | { | |
| 766bc656 AM |
8477 | if (h->root.type == bfd_link_hash_defined |
| 8478 | || h->root.type == bfd_link_hash_defweak) | |
| 8479 | value = h->root.u.def.value; | |
| 8480 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8481 | value = 0; | |
| 8482 | else | |
| 663a1470 AM |
8483 | { |
| 8484 | found_tls_get_addr_arg = 0; | |
| 8485 | continue; | |
| 8486 | } | |
| 102890f0 AM |
8487 | } |
| 8488 | else | |
| 8489 | /* Symbols referenced by TLS relocs must be of type | |
| 8490 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8491 | value = sym->st_value; | |
| 8492 | ||
| 8493 | ok_tprel = FALSE; | |
| 8494 | is_local = FALSE; | |
| 8495 | if (h == NULL | |
| 8496 | || !h->def_dynamic) | |
| 8497 | { | |
| 8498 | is_local = TRUE; | |
| 766bc656 AM |
8499 | if (h != NULL |
| 8500 | && h->root.type == bfd_link_hash_undefweak) | |
| 8501 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8502 | else if (sym_sec != NULL |
| 8503 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8504 | { |
| 8505 | value += sym_sec->output_offset; | |
| 8506 | value += sym_sec->output_section->vma; | |
| 8507 | value -= htab->elf.tls_sec->vma; | |
| 8508 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8509 | < (bfd_vma) 1 << 32); | |
| 8510 | } | |
| 102890f0 | 8511 | } |
| 951fd09b | 8512 | |
| 102890f0 | 8513 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8514 | /* If this section has old-style __tls_get_addr calls |
| 8515 | without marker relocs, then check that each | |
| 8516 | __tls_get_addr call reloc is preceded by a reloc | |
| 8517 | that conceivably belongs to the __tls_get_addr arg | |
| 8518 | setup insn. If we don't find matching arg setup | |
| 8519 | relocs, don't do any tls optimization. */ | |
| 8520 | if (pass == 0 | |
| 8521 | && sec->has_tls_get_addr_call | |
| 8522 | && h != NULL | |
| 8523 | && (h == &htab->tls_get_addr->elf | |
| 8524 | || h == &htab->tls_get_addr_fd->elf) | |
| 8525 | && !found_tls_get_addr_arg | |
| 8526 | && is_branch_reloc (r_type)) | |
| 8527 | { | |
| 25f53a85 | 8528 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8529 | "TLS optimization disabled\n"), |
| 8530 | ibfd, sec, rel->r_offset); | |
| 8531 | ret = TRUE; | |
| 8532 | goto err_free_rel; | |
| 8533 | } | |
| 8534 | ||
| 8535 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8536 | switch (r_type) |
| 8537 | { | |
| 8538 | case R_PPC64_GOT_TLSLD16: | |
| 8539 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8540 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8541 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8542 | /* Fall through. */ |
| 102890f0 AM |
8543 | |
| 8544 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8545 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8546 | /* These relocs should never be against a symbol | |
| 8547 | defined in a shared lib. Leave them alone if | |
| 8548 | that turns out to be the case. */ | |
| 8549 | if (!is_local) | |
| 8550 | continue; | |
| 411e1bfb | 8551 | |
| 102890f0 | 8552 | /* LD -> LE */ |
| 411e1bfb | 8553 | tls_set = 0; |
| 102890f0 AM |
8554 | tls_clear = TLS_LD; |
| 8555 | tls_type = TLS_TLS | TLS_LD; | |
| 8556 | break; | |
| 411e1bfb | 8557 | |
| 102890f0 AM |
8558 | case R_PPC64_GOT_TLSGD16: |
| 8559 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8560 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8561 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8562 | /* Fall through. */ |
| 102890f0 AM |
8563 | |
| 8564 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8565 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8566 | if (ok_tprel) | |
| 8567 | /* GD -> LE */ | |
| 411e1bfb | 8568 | tls_set = 0; |
| 102890f0 AM |
8569 | else |
| 8570 | /* GD -> IE */ | |
| 8571 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8572 | tls_clear = TLS_GD; | |
| 8573 | tls_type = TLS_TLS | TLS_GD; | |
| 8574 | break; | |
| 8575 | ||
| 8576 | case R_PPC64_GOT_TPREL16_DS: | |
| 8577 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8578 | case R_PPC64_GOT_TPREL16_HI: | |
| 8579 | case R_PPC64_GOT_TPREL16_HA: | |
| 8580 | if (ok_tprel) | |
| 8581 | { | |
| 8582 | /* IE -> LE */ | |
| 8583 | tls_set = 0; | |
| 8584 | tls_clear = TLS_TPREL; | |
| 8585 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8586 | break; | |
| 8587 | } | |
| 411e1bfb AM |
8588 | continue; |
| 8589 | ||
| 727fc41e AM |
8590 | case R_PPC64_TLSGD: |
| 8591 | case R_PPC64_TLSLD: | |
| 663a1470 | 8592 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8593 | /* Fall through. */ |
| 663a1470 AM |
8594 | |
| 8595 | case R_PPC64_TLS: | |
| 8596 | case R_PPC64_TOC16: | |
| 8597 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8598 | if (sym_sec == NULL || sym_sec != toc) |
| 8599 | continue; | |
| 8600 | ||
| 8601 | /* Mark this toc entry as referenced by a TLS | |
| 8602 | code sequence. We can do that now in the | |
| 8603 | case of R_PPC64_TLS, and after checking for | |
| 8604 | tls_get_addr for the TOC16 relocs. */ | |
| 8605 | if (toc_ref == NULL) | |
| 663a1470 AM |
8606 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8607 | if (toc_ref == NULL) | |
| 8608 | goto err_free_rel; | |
| 8609 | ||
| 102890f0 AM |
8610 | if (h != NULL) |
| 8611 | value = h->root.u.def.value; | |
| 8612 | else | |
| 8613 | value = sym->st_value; | |
| 8614 | value += rel->r_addend; | |
| 73242275 AM |
8615 | if (value % 8 != 0) |
| 8616 | continue; | |
| 8617 | BFD_ASSERT (value < toc->size | |
| 8618 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8619 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8620 | if (r_type == R_PPC64_TLS |
| 8621 | || r_type == R_PPC64_TLSGD | |
| 8622 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8623 | { |
| 8624 | toc_ref[toc_ref_index] = 1; | |
| 8625 | continue; | |
| 8626 | } | |
| 8627 | ||
| 8628 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8629 | continue; | |
| 8630 | ||
| 8631 | tls_set = 0; | |
| 8632 | tls_clear = 0; | |
| 8633 | expecting_tls_get_addr = 2; | |
| 8634 | break; | |
| 8635 | ||
| 8636 | case R_PPC64_TPREL64: | |
| 8637 | if (pass == 0 | |
| 8638 | || sec != toc | |
| 8639 | || toc_ref == NULL | |
| 663a1470 | 8640 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8641 | continue; |
| 8642 | if (ok_tprel) | |
| 8643 | { | |
| 8644 | /* IE -> LE */ | |
| 8645 | tls_set = TLS_EXPLICIT; | |
| 8646 | tls_clear = TLS_TPREL; | |
| 8647 | break; | |
| 8648 | } | |
| 8649 | continue; | |
| 8650 | ||
| 8651 | case R_PPC64_DTPMOD64: | |
| 8652 | if (pass == 0 | |
| 8653 | || sec != toc | |
| 8654 | || toc_ref == NULL | |
| 663a1470 | 8655 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8656 | continue; |
| 8657 | if (rel + 1 < relend | |
| 8658 | && (rel[1].r_info | |
| 8659 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8660 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8661 | { | |
| 8662 | if (ok_tprel) | |
| 8663 | /* GD -> LE */ | |
| 8664 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8665 | else | |
| 8666 | /* GD -> IE */ | |
| 8667 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8668 | tls_clear = TLS_GD; | |
| 8669 | } | |
| 8670 | else | |
| 8671 | { | |
| 8672 | if (!is_local) | |
| 8673 | continue; | |
| 8674 | ||
| 8675 | /* LD -> LE */ | |
| 8676 | tls_set = TLS_EXPLICIT; | |
| 8677 | tls_clear = TLS_LD; | |
| 8678 | } | |
| 8679 | break; | |
| 8680 | ||
| 8681 | default: | |
| 8682 | continue; | |
| 8683 | } | |
| 8684 | ||
| 8685 | if (pass == 0) | |
| 8686 | { | |
| 727fc41e AM |
8687 | if (!expecting_tls_get_addr |
| 8688 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8689 | continue; |
| 8690 | ||
| 3a71aa26 AM |
8691 | if (rel + 1 < relend |
| 8692 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8693 | htab->tls_get_addr, | |
| 8694 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8695 | { |
| 3a71aa26 | 8696 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8697 | { |
| 3a71aa26 | 8698 | /* Check for toc tls entries. */ |
| f961d9dd | 8699 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8700 | int retval; |
| 8701 | ||
| 8702 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8703 | &locsyms, | |
| 8704 | rel, ibfd); | |
| 8705 | if (retval == 0) | |
| 8706 | goto err_free_rel; | |
| 663a1470 AM |
8707 | if (toc_tls != NULL) |
| 8708 | { | |
| 8709 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8710 | found_tls_get_addr_arg = 1; | |
| 8711 | if (retval > 1) | |
| 8712 | toc_ref[toc_ref_index] = 1; | |
| 8713 | } | |
| 102890f0 | 8714 | } |
| 3a71aa26 | 8715 | continue; |
| 102890f0 AM |
8716 | } |
| 8717 | ||
| 8718 | if (expecting_tls_get_addr != 1) | |
| 8719 | continue; | |
| 8720 | ||
| 8721 | /* Uh oh, we didn't find the expected call. We | |
| 8722 | could just mark this symbol to exclude it | |
| 8723 | from tls optimization but it's safer to skip | |
| 663a1470 | 8724 | the entire optimization. */ |
| 695344c0 | 8725 | /* xgettext:c-format */ |
| 25f53a85 | 8726 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8727 | "TLS optimization disabled\n"), |
| 8728 | ibfd, sec, rel->r_offset); | |
| 8729 | ret = TRUE; | |
| 8730 | goto err_free_rel; | |
| 102890f0 AM |
8731 | } |
| 8732 | ||
| 85f7a9cb | 8733 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8734 | { |
| 8735 | struct plt_entry *ent; | |
| 8736 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8737 | ent != NULL; | |
| 8738 | ent = ent->next) | |
| 8739 | if (ent->addend == 0) | |
| 411e1bfb | 8740 | { |
| 102890f0 | 8741 | if (ent->plt.refcount > 0) |
| 30038c59 | 8742 | { |
| 102890f0 AM |
8743 | ent->plt.refcount -= 1; |
| 8744 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8745 | } |
| 102890f0 | 8746 | break; |
| 411e1bfb | 8747 | } |
| 102890f0 | 8748 | } |
| 411e1bfb | 8749 | |
| 85f7a9cb | 8750 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8751 | { |
| 8752 | struct plt_entry *ent; | |
| 8753 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8754 | ent != NULL; | |
| 8755 | ent = ent->next) | |
| 8756 | if (ent->addend == 0) | |
| 411e1bfb | 8757 | { |
| 102890f0 AM |
8758 | if (ent->plt.refcount > 0) |
| 8759 | ent->plt.refcount -= 1; | |
| 8760 | break; | |
| 411e1bfb | 8761 | } |
| 102890f0 | 8762 | } |
| 411e1bfb | 8763 | |
| 102890f0 | 8764 | if (tls_clear == 0) |
| 30038c59 AM |
8765 | continue; |
| 8766 | ||
| 102890f0 AM |
8767 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8768 | { | |
| 8769 | struct got_entry *ent; | |
| 411e1bfb | 8770 | |
| 102890f0 AM |
8771 | /* Adjust got entry for this reloc. */ |
| 8772 | if (h != NULL) | |
| 8773 | ent = h->got.glist; | |
| 8774 | else | |
| 8775 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8776 | |
| 102890f0 AM |
8777 | for (; ent != NULL; ent = ent->next) |
| 8778 | if (ent->addend == rel->r_addend | |
| 8779 | && ent->owner == ibfd | |
| 8780 | && ent->tls_type == tls_type) | |
| 8781 | break; | |
| 8782 | if (ent == NULL) | |
| 8783 | abort (); | |
| 411e1bfb | 8784 | |
| 102890f0 AM |
8785 | if (tls_set == 0) |
| 8786 | { | |
| 8787 | /* We managed to get rid of a got entry. */ | |
| 8788 | if (ent->got.refcount > 0) | |
| 8789 | ent->got.refcount -= 1; | |
| 8790 | } | |
| 8791 | } | |
| 8792 | else | |
| 8793 | { | |
| 8794 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8795 | we'll lose one or two dyn relocs. */ | |
| 8796 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8797 | NULL, h, sym)) |
| 102890f0 | 8798 | return FALSE; |
| 411e1bfb | 8799 | |
| 102890f0 AM |
8800 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8801 | { | |
| 8802 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8803 | NULL, h, sym)) |
| 102890f0 AM |
8804 | return FALSE; |
| 8805 | } | |
| 8806 | } | |
| 411e1bfb | 8807 | |
| 102890f0 AM |
8808 | *tls_mask |= tls_set; |
| 8809 | *tls_mask &= ~tls_clear; | |
| 8810 | } | |
| 8c1d1bb8 | 8811 | |
| 102890f0 AM |
8812 | if (elf_section_data (sec)->relocs != relstart) |
| 8813 | free (relstart); | |
| 8814 | } | |
| 411e1bfb | 8815 | |
| 663a1470 AM |
8816 | if (locsyms != NULL |
| 8817 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8818 | { | |
| 8819 | if (!info->keep_memory) | |
| 8820 | free (locsyms); | |
| 8821 | else | |
| 8822 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8823 | } | |
| 8824 | } | |
| 411e1bfb | 8825 | |
| 663a1470 AM |
8826 | if (toc_ref != NULL) |
| 8827 | free (toc_ref); | |
| b34976b6 | 8828 | return TRUE; |
| 1e2f5b6e | 8829 | } |
| b34976b6 | 8830 | |
| c5614fa4 AM |
8831 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8832 | the values of any global symbols in a toc section that has been | |
| 8833 | edited. Globals in toc sections should be a rarity, so this function | |
| 8834 | sets a flag if any are found in toc sections other than the one just | |
| 8835 | edited, so that futher hash table traversals can be avoided. */ | |
| 8836 | ||
| 8837 | struct adjust_toc_info | |
| 8838 | { | |
| 8839 | asection *toc; | |
| 8840 | unsigned long *skip; | |
| 8841 | bfd_boolean global_toc_syms; | |
| 8842 | }; | |
| 8843 | ||
| ba761f19 AM |
8844 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8845 | ||
| c5614fa4 AM |
8846 | static bfd_boolean |
| 8847 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8848 | { | |
| 8849 | struct ppc_link_hash_entry *eh; | |
| 8850 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8851 | unsigned long i; |
| c5614fa4 | 8852 | |
| c5614fa4 AM |
8853 | if (h->root.type != bfd_link_hash_defined |
| 8854 | && h->root.type != bfd_link_hash_defweak) | |
| 8855 | return TRUE; | |
| 8856 | ||
| 8857 | eh = (struct ppc_link_hash_entry *) h; | |
| 8858 | if (eh->adjust_done) | |
| 8859 | return TRUE; | |
| 8860 | ||
| 8861 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8862 | { | |
| 854b41e7 AM |
8863 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8864 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8865 | else |
| 854b41e7 AM |
8866 | i = eh->elf.root.u.def.value >> 3; |
| 8867 | ||
| ba761f19 | 8868 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8869 | { |
| 4eca0228 | 8870 | _bfd_error_handler |
| 854b41e7 AM |
8871 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8872 | do | |
| 8873 | ++i; | |
| ba761f19 | 8874 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8875 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8876 | } |
| 854b41e7 AM |
8877 | |
| 8878 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8879 | eh->adjust_done = 1; |
| 8880 | } | |
| 8881 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8882 | toc_inf->global_toc_syms = TRUE; | |
| 8883 | ||
| 8884 | return TRUE; | |
| 8885 | } | |
| 8886 | ||
| 39eeab25 AM |
8887 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8888 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8889 | |
| 8890 | static bfd_boolean | |
| 39eeab25 | 8891 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8892 | { |
| 39eeab25 AM |
8893 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8894 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8895 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8896 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8897 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8898 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8899 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8900 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8901 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8902 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8903 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8904 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8905 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8906 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8907 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8908 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8909 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8910 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8911 | defined for the reduced D field in psq_lu then those | |
| 8912 | will need testing too. */ | |
| 8913 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8914 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8915 | && (insn & 1) == 0) | |
| 8916 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8917 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8918 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8919 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8920 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8921 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8922 | } |
| 8923 | ||
| c5614fa4 AM |
8924 | /* Examine all relocs referencing .toc sections in order to remove |
| 8925 | unused .toc entries. */ | |
| 8926 | ||
| 8927 | bfd_boolean | |
| 33c0ec9d | 8928 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8929 | { |
| 8930 | bfd *ibfd; | |
| 8931 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8932 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8933 | |
| 67f0cbdb | 8934 | htab->do_toc_opt = 1; |
| c5614fa4 | 8935 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8936 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8937 | { |
| 8938 | asection *toc, *sec; | |
| 8939 | Elf_Internal_Shdr *symtab_hdr; | |
| 8940 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8941 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8942 | unsigned long *skip, *drop; |
| 8943 | unsigned char *used; | |
| 8944 | unsigned char *keep, last, some_unused; | |
| 8945 | ||
| 854b41e7 AM |
8946 | if (!is_ppc64_elf (ibfd)) |
| 8947 | continue; | |
| 8948 | ||
| c5614fa4 AM |
8949 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8950 | if (toc == NULL | |
| 92b7a70f | 8951 | || toc->size == 0 |
| dbaa2011 AM |
8952 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8953 | || discarded_section (toc)) | |
| c5614fa4 AM |
8954 | continue; |
| 8955 | ||
| 425b145b | 8956 | toc_relocs = NULL; |
| c5614fa4 | 8957 | local_syms = NULL; |
| 0ffa91dd | 8958 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8959 | |
| 8960 | /* Look at sections dropped from the final link. */ | |
| 8961 | skip = NULL; | |
| 8962 | relstart = NULL; | |
| 8963 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8964 | { | |
| 8965 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8966 | || !discarded_section (sec) |
| c5614fa4 AM |
8967 | || get_opd_info (sec) |
| 8968 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8969 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8970 | continue; | |
| 8971 | ||
| 8972 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8973 | if (relstart == NULL) | |
| 8974 | goto error_ret; | |
| 8975 | ||
| 8976 | /* Run through the relocs to see which toc entries might be | |
| 8977 | unused. */ | |
| 8978 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8979 | { | |
| 8980 | enum elf_ppc64_reloc_type r_type; | |
| 8981 | unsigned long r_symndx; | |
| 8982 | asection *sym_sec; | |
| 8983 | struct elf_link_hash_entry *h; | |
| 8984 | Elf_Internal_Sym *sym; | |
| 8985 | bfd_vma val; | |
| 8986 | ||
| 8987 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8988 | switch (r_type) | |
| 8989 | { | |
| 8990 | default: | |
| 8991 | continue; | |
| 8992 | ||
| 8993 | case R_PPC64_TOC16: | |
| 8994 | case R_PPC64_TOC16_LO: | |
| 8995 | case R_PPC64_TOC16_HI: | |
| 8996 | case R_PPC64_TOC16_HA: | |
| 8997 | case R_PPC64_TOC16_DS: | |
| 8998 | case R_PPC64_TOC16_LO_DS: | |
| 8999 | break; | |
| 9000 | } | |
| 9001 | ||
| 9002 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9003 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9004 | r_symndx, ibfd)) | |
| 9005 | goto error_ret; | |
| 9006 | ||
| 9007 | if (sym_sec != toc) | |
| 9008 | continue; | |
| 9009 | ||
| 9010 | if (h != NULL) | |
| 9011 | val = h->root.u.def.value; | |
| 9012 | else | |
| 9013 | val = sym->st_value; | |
| 9014 | val += rel->r_addend; | |
| 9015 | ||
| 9016 | if (val >= toc->size) | |
| 9017 | continue; | |
| 9018 | ||
| 9019 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 9020 | If not, don't mark as unused. */ | |
| 9021 | if (val & 7) | |
| 9022 | continue; | |
| 9023 | ||
| 9024 | if (skip == NULL) | |
| 9025 | { | |
| 854b41e7 | 9026 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
9027 | if (skip == NULL) |
| 9028 | goto error_ret; | |
| 9029 | } | |
| 9030 | ||
| ba761f19 | 9031 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
9032 | } |
| 9033 | ||
| 9034 | if (elf_section_data (sec)->relocs != relstart) | |
| 9035 | free (relstart); | |
| 9036 | } | |
| 9037 | ||
| ba761f19 AM |
9038 | /* For largetoc loads of address constants, we can convert |
| 9039 | . addis rx,2,addr@got@ha | |
| 9040 | . ld ry,addr@got@l(rx) | |
| 9041 | to | |
| 9042 | . addis rx,2,addr@toc@ha | |
| 9043 | . addi ry,rx,addr@toc@l | |
| 9044 | when addr is within 2G of the toc pointer. This then means | |
| 9045 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9046 | |
| ba761f19 AM |
9047 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9048 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9049 | && toc->reloc_count != 0) | |
| 9050 | { | |
| 9051 | /* Read toc relocs. */ | |
| 425b145b AM |
9052 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9053 | info->keep_memory); | |
| 9054 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9055 | goto error_ret; |
| 9056 | ||
| 425b145b | 9057 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9058 | { |
| 9059 | enum elf_ppc64_reloc_type r_type; | |
| 9060 | unsigned long r_symndx; | |
| 9061 | asection *sym_sec; | |
| 9062 | struct elf_link_hash_entry *h; | |
| 9063 | Elf_Internal_Sym *sym; | |
| 9064 | bfd_vma val, addr; | |
| 9065 | ||
| 9066 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9067 | if (r_type != R_PPC64_ADDR64) | |
| 9068 | continue; | |
| 9069 | ||
| 9070 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9071 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9072 | r_symndx, ibfd)) | |
| 9073 | goto error_ret; | |
| 9074 | ||
| 425b145b | 9075 | if (sym_sec == NULL |
| c27b8c2a | 9076 | || sym_sec->output_section == NULL |
| dbaa2011 | 9077 | || discarded_section (sym_sec)) |
| 425b145b AM |
9078 | continue; |
| 9079 | ||
| afe397ea | 9080 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9081 | continue; |
| 9082 | ||
| 9083 | if (h != NULL) | |
| bddc25c9 AM |
9084 | { |
| 9085 | if (h->type == STT_GNU_IFUNC) | |
| 9086 | continue; | |
| 9087 | val = h->root.u.def.value; | |
| 9088 | } | |
| ba761f19 | 9089 | else |
| bddc25c9 AM |
9090 | { |
| 9091 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9092 | continue; | |
| 9093 | val = sym->st_value; | |
| 9094 | } | |
| ba761f19 AM |
9095 | val += rel->r_addend; |
| 9096 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9097 | ||
| 9098 | /* We don't yet know the exact toc pointer value, but we | |
| 9099 | know it will be somewhere in the toc section. Don't | |
| 9100 | optimize if the difference from any possible toc | |
| 9101 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9102 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9103 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9104 | continue; | |
| 9105 | ||
| 9106 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9107 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9108 | continue; | |
| 9109 | ||
| 9110 | if (skip == NULL) | |
| 9111 | { | |
| 9112 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9113 | if (skip == NULL) | |
| 9114 | goto error_ret; | |
| 9115 | } | |
| 9116 | ||
| 9117 | skip[rel->r_offset >> 3] | |
| 425b145b | 9118 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9119 | } |
| ba761f19 AM |
9120 | } |
| 9121 | ||
| c5614fa4 AM |
9122 | if (skip == NULL) |
| 9123 | continue; | |
| 9124 | ||
| 9125 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9126 | if (used == NULL) | |
| 9127 | { | |
| 9128 | error_ret: | |
| 9129 | if (local_syms != NULL | |
| 9130 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9131 | free (local_syms); | |
| 9132 | if (sec != NULL | |
| 9133 | && relstart != NULL | |
| 9134 | && elf_section_data (sec)->relocs != relstart) | |
| 9135 | free (relstart); | |
| 425b145b AM |
9136 | if (toc_relocs != NULL |
| 9137 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9138 | free (toc_relocs); | |
| c5614fa4 AM |
9139 | if (skip != NULL) |
| 9140 | free (skip); | |
| 9141 | return FALSE; | |
| 9142 | } | |
| 9143 | ||
| 30038c59 AM |
9144 | /* Now check all kept sections that might reference the toc. |
| 9145 | Check the toc itself last. */ | |
| 9146 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9147 | : ibfd->sections); | |
| c5614fa4 | 9148 | sec != NULL; |
| c5614fa4 | 9149 | sec = (sec == toc ? NULL |
| c5614fa4 | 9150 | : sec->next == NULL ? toc |
| 30038c59 | 9151 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9152 | : sec->next)) |
| 9153 | { | |
| 9154 | int repeat; | |
| 9155 | ||
| 9156 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9157 | || discarded_section (sec) |
| c5614fa4 AM |
9158 | || get_opd_info (sec) |
| 9159 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9160 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9161 | continue; | |
| 9162 | ||
| 854b41e7 AM |
9163 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9164 | info->keep_memory); | |
| c5614fa4 | 9165 | if (relstart == NULL) |
| 2915c55b JK |
9166 | { |
| 9167 | free (used); | |
| 9168 | goto error_ret; | |
| 9169 | } | |
| c5614fa4 AM |
9170 | |
| 9171 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9172 | do |
| d4f1ee75 AM |
9173 | { |
| 9174 | repeat = 0; | |
| 9175 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9176 | { | |
| 9177 | enum elf_ppc64_reloc_type r_type; | |
| 9178 | unsigned long r_symndx; | |
| 9179 | asection *sym_sec; | |
| 9180 | struct elf_link_hash_entry *h; | |
| 9181 | Elf_Internal_Sym *sym; | |
| 9182 | bfd_vma val; | |
| 9183 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9184 | |
| d4f1ee75 AM |
9185 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9186 | switch (r_type) | |
| 9187 | { | |
| 9188 | default: | |
| 9189 | insn_check = no_check; | |
| 9190 | break; | |
| 98528052 | 9191 | |
| d4f1ee75 AM |
9192 | case R_PPC64_GOT_TLSLD16_HA: |
| 9193 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9194 | case R_PPC64_GOT_TPREL16_HA: | |
| 9195 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9196 | case R_PPC64_GOT16_HA: | |
| 9197 | case R_PPC64_TOC16_HA: | |
| 9198 | insn_check = check_ha; | |
| 9199 | break; | |
| 98528052 | 9200 | |
| d4f1ee75 AM |
9201 | case R_PPC64_GOT_TLSLD16_LO: |
| 9202 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9203 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9204 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9205 | case R_PPC64_GOT16_LO: | |
| 9206 | case R_PPC64_GOT16_LO_DS: | |
| 9207 | case R_PPC64_TOC16_LO: | |
| 9208 | case R_PPC64_TOC16_LO_DS: | |
| 9209 | insn_check = check_lo; | |
| 9210 | break; | |
| 9211 | } | |
| 560c8763 | 9212 | |
| d4f1ee75 AM |
9213 | if (insn_check != no_check) |
| 9214 | { | |
| 9215 | bfd_vma off = rel->r_offset & ~3; | |
| 9216 | unsigned char buf[4]; | |
| 9217 | unsigned int insn; | |
| c5614fa4 | 9218 | |
| d4f1ee75 AM |
9219 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9220 | { | |
| 9221 | free (used); | |
| 9222 | goto error_ret; | |
| 9223 | } | |
| 9224 | insn = bfd_get_32 (ibfd, buf); | |
| 9225 | if (insn_check == check_lo | |
| 39eeab25 | 9226 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9227 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9228 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9229 | { | |
| 9230 | char str[12]; | |
| 9231 | ||
| 9232 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9233 | sprintf (str, "%#08x", insn); | |
| 9234 | info->callbacks->einfo | |
| 695344c0 | 9235 | /* xgettext:c-format */ |
| d4f1ee75 AM |
9236 | (_("%P: %H: toc optimization is not supported for" |
| 9237 | " %s instruction.\n"), | |
| 9238 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9239 | } | |
| 9240 | } | |
| c5614fa4 | 9241 | |
| d4f1ee75 AM |
9242 | switch (r_type) |
| 9243 | { | |
| 9244 | case R_PPC64_TOC16: | |
| 9245 | case R_PPC64_TOC16_LO: | |
| 9246 | case R_PPC64_TOC16_HI: | |
| 9247 | case R_PPC64_TOC16_HA: | |
| 9248 | case R_PPC64_TOC16_DS: | |
| 9249 | case R_PPC64_TOC16_LO_DS: | |
| 9250 | /* In case we're taking addresses of toc entries. */ | |
| 9251 | case R_PPC64_ADDR64: | |
| 9252 | break; | |
| c5614fa4 | 9253 | |
| d4f1ee75 AM |
9254 | default: |
| 9255 | continue; | |
| 9256 | } | |
| c5614fa4 | 9257 | |
| d4f1ee75 AM |
9258 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9259 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9260 | r_symndx, ibfd)) | |
| 9261 | { | |
| 9262 | free (used); | |
| 9263 | goto error_ret; | |
| 9264 | } | |
| c5614fa4 | 9265 | |
| d4f1ee75 AM |
9266 | if (sym_sec != toc) |
| 9267 | continue; | |
| c5614fa4 | 9268 | |
| d4f1ee75 AM |
9269 | if (h != NULL) |
| 9270 | val = h->root.u.def.value; | |
| 9271 | else | |
| 9272 | val = sym->st_value; | |
| 9273 | val += rel->r_addend; | |
| ba761f19 | 9274 | |
| d4f1ee75 AM |
9275 | if (val >= toc->size) |
| 9276 | continue; | |
| ba761f19 | 9277 | |
| d4f1ee75 AM |
9278 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9279 | { | |
| 9280 | bfd_vma off; | |
| 9281 | unsigned char opc; | |
| 9282 | ||
| 9283 | switch (r_type) | |
| 9284 | { | |
| 9285 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9286 | break; |
| ba761f19 | 9287 | |
| d4f1ee75 AM |
9288 | case R_PPC64_TOC16_LO_DS: |
| 9289 | off = rel->r_offset; | |
| 9290 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9291 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9292 | off, 1)) | |
| 9293 | { | |
| 9294 | free (used); | |
| 9295 | goto error_ret; | |
| 9296 | } | |
| 9297 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9298 | break; | |
| 1a0670f3 | 9299 | /* Fall through. */ |
| ba761f19 | 9300 | |
| d4f1ee75 AM |
9301 | default: |
| 9302 | /* Wrong sort of reloc, or not a ld. We may | |
| 9303 | as well clear ref_from_discarded too. */ | |
| 9304 | skip[val >> 3] = 0; | |
| 9305 | } | |
| 9306 | } | |
| 9307 | ||
| 9308 | if (sec != toc) | |
| 9309 | used[val >> 3] = 1; | |
| 9310 | /* For the toc section, we only mark as used if this | |
| 9311 | entry itself isn't unused. */ | |
| 9312 | else if ((used[rel->r_offset >> 3] | |
| 9313 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9314 | && !used[val >> 3]) | |
| 9315 | { | |
| 9316 | /* Do all the relocs again, to catch reference | |
| 9317 | chains. */ | |
| 9318 | repeat = 1; | |
| 9319 | used[val >> 3] = 1; | |
| 9320 | } | |
| 9321 | } | |
| 9322 | } | |
| c5614fa4 | 9323 | while (repeat); |
| 854b41e7 AM |
9324 | |
| 9325 | if (elf_section_data (sec)->relocs != relstart) | |
| 9326 | free (relstart); | |
| c5614fa4 AM |
9327 | } |
| 9328 | ||
| 9329 | /* Merge the used and skip arrays. Assume that TOC | |
| 9330 | doublewords not appearing as either used or unused belong | |
| 9331 | to to an entry more than one doubleword in size. */ | |
| 9332 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9333 | drop < skip + (toc->size + 7) / 8; | |
| 9334 | ++drop, ++keep) | |
| 9335 | { | |
| 9336 | if (*keep) | |
| 9337 | { | |
| ba761f19 AM |
9338 | *drop &= ~ref_from_discarded; |
| 9339 | if ((*drop & can_optimize) != 0) | |
| 9340 | some_unused = 1; | |
| c5614fa4 AM |
9341 | last = 0; |
| 9342 | } | |
| b140b010 | 9343 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9344 | { |
| 9345 | some_unused = 1; | |
| ba761f19 | 9346 | last = ref_from_discarded; |
| c5614fa4 AM |
9347 | } |
| 9348 | else | |
| 9349 | *drop = last; | |
| 9350 | } | |
| 9351 | ||
| 9352 | free (used); | |
| 9353 | ||
| 9354 | if (some_unused) | |
| 9355 | { | |
| 9356 | bfd_byte *contents, *src; | |
| 9357 | unsigned long off; | |
| d62b3684 | 9358 | Elf_Internal_Sym *sym; |
| ba761f19 | 9359 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9360 | |
| 9361 | /* Shuffle the toc contents, and at the same time convert the | |
| 9362 | skip array from booleans into offsets. */ | |
| 9363 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9364 | goto error_ret; | |
| 9365 | ||
| 9366 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9367 | ||
| 9368 | for (src = contents, off = 0, drop = skip; | |
| 9369 | src < contents + toc->size; | |
| 9370 | src += 8, ++drop) | |
| 9371 | { | |
| ba761f19 AM |
9372 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9373 | off += 8; | |
| c5614fa4 AM |
9374 | else if (off != 0) |
| 9375 | { | |
| 9376 | *drop = off; | |
| 9377 | memcpy (src - off, src, 8); | |
| 9378 | } | |
| 9379 | } | |
| 854b41e7 | 9380 | *drop = off; |
| c5614fa4 AM |
9381 | toc->rawsize = toc->size; |
| 9382 | toc->size = src - contents - off; | |
| 9383 | ||
| ba761f19 AM |
9384 | /* Adjust addends for relocs against the toc section sym, |
| 9385 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9386 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9387 | { | |
| 9388 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9389 | || discarded_section (sec)) |
| c5614fa4 AM |
9390 | continue; |
| 9391 | ||
| 9392 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9393 | info->keep_memory); |
| c5614fa4 AM |
9394 | if (relstart == NULL) |
| 9395 | goto error_ret; | |
| 9396 | ||
| 9397 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9398 | { | |
| 9399 | enum elf_ppc64_reloc_type r_type; | |
| 9400 | unsigned long r_symndx; | |
| 9401 | asection *sym_sec; | |
| 9402 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9403 | bfd_vma val; |
| c5614fa4 AM |
9404 | |
| 9405 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9406 | switch (r_type) | |
| 9407 | { | |
| 9408 | default: | |
| 9409 | continue; | |
| 9410 | ||
| 9411 | case R_PPC64_TOC16: | |
| 9412 | case R_PPC64_TOC16_LO: | |
| 9413 | case R_PPC64_TOC16_HI: | |
| 9414 | case R_PPC64_TOC16_HA: | |
| 9415 | case R_PPC64_TOC16_DS: | |
| 9416 | case R_PPC64_TOC16_LO_DS: | |
| 9417 | case R_PPC64_ADDR64: | |
| 9418 | break; | |
| 9419 | } | |
| 9420 | ||
| 9421 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9422 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9423 | r_symndx, ibfd)) | |
| 9424 | goto error_ret; | |
| 9425 | ||
| ba761f19 | 9426 | if (sym_sec != toc) |
| c5614fa4 AM |
9427 | continue; |
| 9428 | ||
| ba761f19 AM |
9429 | if (h != NULL) |
| 9430 | val = h->root.u.def.value; | |
| 9431 | else | |
| 9432 | { | |
| 9433 | val = sym->st_value; | |
| 9434 | if (val != 0) | |
| 9435 | local_toc_syms = TRUE; | |
| 9436 | } | |
| 9437 | ||
| 9438 | val += rel->r_addend; | |
| 854b41e7 AM |
9439 | |
| 9440 | if (val > toc->rawsize) | |
| 9441 | val = toc->rawsize; | |
| ba761f19 AM |
9442 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9443 | continue; | |
| 9444 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9445 | { | |
| 9446 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9447 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9448 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9449 | ||
| 9450 | switch (r_type) | |
| 9451 | { | |
| 9452 | case R_PPC64_TOC16_HA: | |
| 9453 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9454 | break; | |
| 9455 | ||
| 9456 | case R_PPC64_TOC16_LO_DS: | |
| 9457 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9458 | break; | |
| 9459 | ||
| 9460 | default: | |
| 28942f62 AM |
9461 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9462 | ppc_howto_init (); | |
| b140b010 | 9463 | info->callbacks->einfo |
| 695344c0 | 9464 | /* xgettext:c-format */ |
| bc30df16 | 9465 | (_("%P: %H: %s references " |
| b140b010 AM |
9466 | "optimized away TOC entry\n"), |
| 9467 | ibfd, sec, rel->r_offset, | |
| 9468 | ppc64_elf_howto_table[r_type]->name); | |
| 9469 | bfd_set_error (bfd_error_bad_value); | |
| 9470 | goto error_ret; | |
| ba761f19 AM |
9471 | } |
| 9472 | rel->r_addend = tocrel->r_addend; | |
| 9473 | elf_section_data (sec)->relocs = relstart; | |
| 9474 | continue; | |
| 9475 | } | |
| 9476 | ||
| 9477 | if (h != NULL || sym->st_value != 0) | |
| 9478 | continue; | |
| 854b41e7 AM |
9479 | |
| 9480 | rel->r_addend -= skip[val >> 3]; | |
| 9481 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9482 | } |
| 854b41e7 AM |
9483 | |
| 9484 | if (elf_section_data (sec)->relocs != relstart) | |
| 9485 | free (relstart); | |
| c5614fa4 AM |
9486 | } |
| 9487 | ||
| 9488 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9489 | but handle them anyway. */ | |
| df22d223 AM |
9490 | if (local_syms != NULL) |
| 9491 | for (sym = local_syms; | |
| 9492 | sym < local_syms + symtab_hdr->sh_info; | |
| 9493 | ++sym) | |
| 9494 | if (sym->st_value != 0 | |
| 9495 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9496 | { | |
| 9497 | unsigned long i; | |
| 854b41e7 | 9498 | |
| df22d223 AM |
9499 | if (sym->st_value > toc->rawsize) |
| 9500 | i = toc->rawsize >> 3; | |
| 9501 | else | |
| 9502 | i = sym->st_value >> 3; | |
| 854b41e7 | 9503 | |
| df22d223 AM |
9504 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9505 | { | |
| 9506 | if (local_toc_syms) | |
| 4eca0228 | 9507 | _bfd_error_handler |
| df22d223 AM |
9508 | (_("%s defined on removed toc entry"), |
| 9509 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9510 | do | |
| 9511 | ++i; | |
| 9512 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9513 | sym->st_value = (bfd_vma) i << 3; | |
| 9514 | } | |
| d62b3684 | 9515 | |
| df22d223 AM |
9516 | sym->st_value -= skip[i]; |
| 9517 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9518 | } | |
| c5614fa4 | 9519 | |
| 854b41e7 | 9520 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9521 | if (toc_inf.global_toc_syms) |
| 9522 | { | |
| 9523 | toc_inf.toc = toc; | |
| 9524 | toc_inf.skip = skip; | |
| 9525 | toc_inf.global_toc_syms = FALSE; | |
| 9526 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9527 | &toc_inf); | |
| 9528 | } | |
| 854b41e7 AM |
9529 | |
| 9530 | if (toc->reloc_count != 0) | |
| 9531 | { | |
| d4730f92 | 9532 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9533 | Elf_Internal_Rela *wrel; |
| 9534 | bfd_size_type sz; | |
| 9535 | ||
| 854b41e7 | 9536 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9537 | if (toc_relocs == NULL) |
| 9538 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9539 | info->keep_memory); | |
| 9540 | if (toc_relocs == NULL) | |
| 9541 | goto error_ret; | |
| 9542 | ||
| 425b145b AM |
9543 | wrel = toc_relocs; |
| 9544 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9545 | if ((skip[rel->r_offset >> 3] |
| 9546 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9547 | { |
| 9548 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9549 | wrel->r_info = rel->r_info; | |
| 9550 | wrel->r_addend = rel->r_addend; | |
| 9551 | ++wrel; | |
| 9552 | } | |
| 9553 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9554 | &local_syms, NULL, NULL)) | |
| 9555 | goto error_ret; | |
| 9556 | ||
| 425b145b AM |
9557 | elf_section_data (toc)->relocs = toc_relocs; |
| 9558 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9559 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9560 | sz = rel_hdr->sh_entsize; | |
| 9561 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9562 | } |
| c5614fa4 | 9563 | } |
| 28be611c AM |
9564 | else if (toc_relocs != NULL |
| 9565 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9566 | free (toc_relocs); |
| c5614fa4 AM |
9567 | |
| 9568 | if (local_syms != NULL | |
| 9569 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9570 | { | |
| 9571 | if (!info->keep_memory) | |
| 9572 | free (local_syms); | |
| 9573 | else | |
| 9574 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9575 | } | |
| 9576 | free (skip); | |
| 9577 | } | |
| 9578 | ||
| 9579 | return TRUE; | |
| 9580 | } | |
| 9581 | ||
| 1bbe0902 AM |
9582 | /* Return true iff input section I references the TOC using |
| 9583 | instructions limited to +/-32k offsets. */ | |
| 9584 | ||
| 9585 | bfd_boolean | |
| 9586 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9587 | { | |
| 9588 | return (is_ppc64_elf (i->owner) | |
| 9589 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9590 | } | |
| 9591 | ||
| 927be08e AM |
9592 | /* Allocate space for one GOT entry. */ |
| 9593 | ||
| 9594 | static void | |
| 9595 | allocate_got (struct elf_link_hash_entry *h, | |
| 9596 | struct bfd_link_info *info, | |
| 9597 | struct got_entry *gent) | |
| 9598 | { | |
| 9599 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9600 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9601 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9602 | ? 16 : 8); | |
| 9603 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9604 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9605 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9606 | ||
| 9607 | gent->got.offset = got->size; | |
| 9608 | got->size += entsize; | |
| 9609 | ||
| 19e08130 | 9610 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9611 | { |
| 33e44f2e | 9612 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9613 | htab->got_reli_size += rentsize; |
| 927be08e | 9614 | } |
| 0e1862bb | 9615 | else if ((bfd_link_pic (info) |
| f0158f44 AM |
9616 | || (htab->elf.dynamic_sections_created |
| 9617 | && h->dynindx != -1 | |
| 9618 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 19e08130 AM |
9619 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT |
| 9620 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9621 | { |
| 19e08130 | 9622 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9623 | relgot->size += rentsize; |
| 927be08e AM |
9624 | } |
| 9625 | } | |
| 9626 | ||
| 7865406b AM |
9627 | /* This function merges got entries in the same toc group. */ |
| 9628 | ||
| 9629 | static void | |
| 9630 | merge_got_entries (struct got_entry **pent) | |
| 9631 | { | |
| 9632 | struct got_entry *ent, *ent2; | |
| 9633 | ||
| 9634 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9635 | if (!ent->is_indirect) | |
| 9636 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9637 | if (!ent2->is_indirect | |
| 9638 | && ent2->addend == ent->addend | |
| 9639 | && ent2->tls_type == ent->tls_type | |
| 9640 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9641 | { | |
| 9642 | ent2->is_indirect = TRUE; | |
| 9643 | ent2->got.ent = ent; | |
| 9644 | } | |
| 9645 | } | |
| 9646 | ||
| f0158f44 AM |
9647 | /* If H is undefined weak, make it dynamic if that makes sense. */ |
| 9648 | ||
| 9649 | static bfd_boolean | |
| 9650 | ensure_undefweak_dynamic (struct bfd_link_info *info, | |
| 9651 | struct elf_link_hash_entry *h) | |
| 9652 | { | |
| 9653 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9654 | ||
| 9655 | if (htab->dynamic_sections_created | |
| 9656 | && h->root.type == bfd_link_hash_undefweak | |
| 9657 | && h->dynindx == -1 | |
| 9658 | && !h->forced_local | |
| 9659 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9660 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9661 | return TRUE; | |
| 9662 | } | |
| 9663 | ||
| 65f38f15 AM |
9664 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9665 | dynamic relocs. */ | |
| 5bd4f169 | 9666 | |
| b34976b6 | 9667 | static bfd_boolean |
| 4ce794b7 | 9668 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9669 | { |
| 65f38f15 AM |
9670 | struct bfd_link_info *info; |
| 9671 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9672 | asection *s; |
| 65f38f15 | 9673 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9674 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9675 | |
| e92d460e | 9676 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9677 | return TRUE; |
| 5bd4f169 | 9678 | |
| 65f38f15 AM |
9679 | info = (struct bfd_link_info *) inf; |
| 9680 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9681 | if (htab == NULL) |
| 9682 | return FALSE; | |
| 5bd4f169 | 9683 | |
| 951fd09b AM |
9684 | eh = (struct ppc_link_hash_entry *) h; |
| 9685 | /* Run through the TLS GD got entries first if we're changing them | |
| 9686 | to TPREL. */ | |
| e7b938ca | 9687 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9688 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9689 | if (gent->got.refcount > 0 | |
| 9690 | && (gent->tls_type & TLS_GD) != 0) | |
| 9691 | { | |
| 9692 | /* This was a GD entry that has been converted to TPREL. If | |
| 9693 | there happens to be a TPREL entry we can use that one. */ | |
| 9694 | struct got_entry *ent; | |
| 9695 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9696 | if (ent->got.refcount > 0 | |
| 9697 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9698 | && ent->addend == gent->addend |
| 9699 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9700 | { |
| 9701 | gent->got.refcount = 0; | |
| 9702 | break; | |
| 9703 | } | |
| 9704 | ||
| 9705 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9706 | if (gent->got.refcount != 0) | |
| 9707 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9708 | } | |
| 9709 | ||
| 7865406b AM |
9710 | /* Remove any list entry that won't generate a word in the GOT before |
| 9711 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9712 | entries. */ | |
| 0b8bcf0d AM |
9713 | pgent = &h->got.glist; |
| 9714 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9715 | if (gent->got.refcount > 0) |
| 7865406b AM |
9716 | { |
| 9717 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9718 | && !h->def_dynamic) | |
| 9719 | { | |
| 9720 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9721 | *pgent = gent->next; | |
| 9722 | } | |
| 9723 | else | |
| 9724 | pgent = &gent->next; | |
| 9725 | } | |
| 9726 | else | |
| 9727 | *pgent = gent->next; | |
| 9728 | ||
| 9729 | if (!htab->do_multi_toc) | |
| 9730 | merge_got_entries (&h->got.glist); | |
| 9731 | ||
| 9732 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9733 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9734 | { |
| 9735 | /* Make sure this symbol is output as a dynamic symbol. | |
| f0158f44 AM |
9736 | Undefined weak syms won't yet be marked as dynamic. */ |
| 9737 | if (!ensure_undefweak_dynamic (info, h)) | |
| 9738 | return FALSE; | |
| 65f38f15 | 9739 | |
| 0c8d6e5c | 9740 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9741 | abort (); |
| 0ffa91dd | 9742 | |
| 927be08e | 9743 | allocate_got (h, info, gent); |
| 411e1bfb | 9744 | } |
| 65f38f15 | 9745 | |
| 8a2058b5 AM |
9746 | if (!htab->elf.dynamic_sections_created |
| 9747 | && h->type != STT_GNU_IFUNC) | |
| 9748 | eh->dyn_relocs = NULL; | |
| 9749 | ||
| 9750 | if (eh->dyn_relocs != NULL) | |
| 65f38f15 | 9751 | { |
| 8a2058b5 AM |
9752 | struct elf_dyn_relocs *p, **pp; |
| 9753 | ||
| 57e7d118 AM |
9754 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9755 | dynamic pc-relative relocs against symbols which turn out to | |
| 9756 | be defined in regular objects. For the normal shared case, | |
| 9757 | discard space for relocs that have become local due to symbol | |
| 9758 | visibility changes. */ | |
| 9759 | ||
| 9760 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9761 | { |
| 57e7d118 AM |
9762 | /* Relocs that use pc_count are those that appear on a call |
| 9763 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9764 | can be generated via assembly. We want calls to | |
| 9765 | protected symbols to resolve directly to the function | |
| 9766 | rather than going via the plt. If people want function | |
| 9767 | pointer comparisons to work as expected then they should | |
| 9768 | avoid writing weird assembly. */ | |
| 9769 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9770 | { | |
| 57e7d118 AM |
9771 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9772 | { | |
| 9773 | p->count -= p->pc_count; | |
| 9774 | p->pc_count = 0; | |
| 9775 | if (p->count == 0) | |
| 9776 | *pp = p->next; | |
| 9777 | else | |
| 9778 | pp = &p->next; | |
| 9779 | } | |
| 9780 | } | |
| 65f38f15 | 9781 | |
| 57e7d118 AM |
9782 | /* Also discard relocs on undefined weak syms with |
| 9783 | non-default visibility. */ | |
| 9784 | if (eh->dyn_relocs != NULL | |
| 9785 | && h->root.type == bfd_link_hash_undefweak) | |
| 5bd4f169 | 9786 | { |
| 57e7d118 AM |
9787 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9788 | eh->dyn_relocs = NULL; | |
| 9789 | ||
| 9790 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9791 | Undefined weak syms won't yet be marked as dynamic. */ | |
| f0158f44 AM |
9792 | else if (!ensure_undefweak_dynamic (info, h)) |
| 9793 | return FALSE; | |
| 5bd4f169 | 9794 | } |
| 65f38f15 | 9795 | } |
| 57e7d118 | 9796 | else if (h->type == STT_GNU_IFUNC) |
| dfbb6ac9 | 9797 | { |
| 8a2058b5 AM |
9798 | /* A plt entry is always created when making direct calls to |
| 9799 | an ifunc, even when building a static executable, but | |
| 9800 | that doesn't cover all cases. We may have only an ifunc | |
| 9801 | initialised function pointer for a given ifunc symbol. | |
| 9802 | ||
| 9803 | For ELFv2, dynamic relocations are not required when | |
| 9804 | generating a global entry PLT stub. */ | |
| 9805 | if (abiversion (info->output_bfd) >= 2) | |
| 9806 | { | |
| 9807 | if (global_entry_stub (h)) | |
| 9808 | eh->dyn_relocs = NULL; | |
| 9809 | } | |
| 9810 | ||
| 9811 | /* For ELFv1 we have function descriptors. Descriptors need | |
| 9812 | to be treated like PLT entries and thus have dynamic | |
| 9813 | relocations. One exception is when the function | |
| 9814 | descriptor is copied into .dynbss (which should only | |
| 9815 | happen with ancient versions of gcc). */ | |
| 9816 | else if (h->needs_copy) | |
| dfbb6ac9 | 9817 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9818 | } |
| 9819 | else if (ELIMINATE_COPY_RELOCS) | |
| 9820 | { | |
| 8a2058b5 | 9821 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9822 | symbols which turn out to need copy relocs or are not |
| 9823 | dynamic. */ | |
| f0158f44 AM |
9824 | if (!h->non_got_ref |
| 9825 | && !h->def_regular) | |
| 9826 | { | |
| 9827 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9828 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9829 | if (!ensure_undefweak_dynamic (info, h)) | |
| 9830 | return FALSE; | |
| dfbb6ac9 | 9831 | |
| f0158f44 AM |
9832 | if (h->dynindx == -1) |
| 9833 | eh->dyn_relocs = NULL; | |
| 9834 | } | |
| 9835 | else | |
| 8a2058b5 | 9836 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9837 | } |
| 9838 | ||
| 9839 | /* Finally, allocate space. */ | |
| 9840 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9841 | { | |
| 9842 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9843 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9844 | sreloc = htab->elf.irelplt; | |
| 9845 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9846 | } |
| 65f38f15 | 9847 | } |
| 57e7d118 AM |
9848 | |
| 9849 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9850 | && h->dynindx != -1) |
| 57e7d118 | 9851 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9852 | { |
| 57e7d118 AM |
9853 | struct plt_entry *pent; |
| 9854 | bfd_boolean doneone = FALSE; | |
| 9855 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9856 | if (pent->plt.refcount > 0) | |
| 9857 | { | |
| 9858 | if (!htab->elf.dynamic_sections_created | |
| 9859 | || h->dynindx == -1) | |
| 9860 | { | |
| 9861 | s = htab->elf.iplt; | |
| 9862 | pent->plt.offset = s->size; | |
| 9863 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9864 | s = htab->elf.irelplt; | |
| 9865 | } | |
| 9866 | else | |
| 9867 | { | |
| 9868 | /* If this is the first .plt entry, make room for the special | |
| 9869 | first entry. */ | |
| 9870 | s = htab->elf.splt; | |
| 9871 | if (s->size == 0) | |
| 9872 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9873 | |
| 57e7d118 | 9874 | pent->plt.offset = s->size; |
| 65f38f15 | 9875 | |
| 57e7d118 AM |
9876 | /* Make room for this entry. */ |
| 9877 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9878 | |
| 57e7d118 AM |
9879 | /* Make room for the .glink code. */ |
| 9880 | s = htab->glink; | |
| 9881 | if (s->size == 0) | |
| 9882 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9883 | if (htab->opd_abi) | |
| 9884 | { | |
| 9885 | /* We need bigger stubs past index 32767. */ | |
| 9886 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9887 | s->size += 4; | |
| 9888 | s->size += 2*4; | |
| 9889 | } | |
| 9890 | else | |
| 9891 | s->size += 4; | |
| 65f38f15 | 9892 | |
| 57e7d118 AM |
9893 | /* We also need to make an entry in the .rela.plt section. */ |
| 9894 | s = htab->elf.srelplt; | |
| 9895 | } | |
| 9896 | s->size += sizeof (Elf64_External_Rela); | |
| 9897 | doneone = TRUE; | |
| 9898 | } | |
| 9899 | else | |
| 9900 | pent->plt.offset = (bfd_vma) -1; | |
| 9901 | if (!doneone) | |
| 9902 | { | |
| 9903 | h->plt.plist = NULL; | |
| 9904 | h->needs_plt = 0; | |
| 9905 | } | |
| 65f38f15 | 9906 | } |
| 57e7d118 | 9907 | else |
| 65f38f15 | 9908 | { |
| 57e7d118 AM |
9909 | h->plt.plist = NULL; |
| 9910 | h->needs_plt = 0; | |
| 65f38f15 AM |
9911 | } |
| 9912 | ||
| b34976b6 | 9913 | return TRUE; |
| 65f38f15 AM |
9914 | } |
| 9915 | ||
| a345bc8d AM |
9916 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9917 | to set up space for global entry stubs. These are put in glink, | |
| 9918 | after the branch table. */ | |
| 65f38f15 | 9919 | |
| b34976b6 | 9920 | static bfd_boolean |
| a345bc8d | 9921 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9922 | { |
| a345bc8d AM |
9923 | struct bfd_link_info *info; |
| 9924 | struct ppc_link_hash_table *htab; | |
| 9925 | struct plt_entry *pent; | |
| 9926 | asection *s; | |
| 65f38f15 | 9927 | |
| a345bc8d AM |
9928 | if (h->root.type == bfd_link_hash_indirect) |
| 9929 | return TRUE; | |
| 65f38f15 | 9930 | |
| a345bc8d AM |
9931 | if (!h->pointer_equality_needed) |
| 9932 | return TRUE; | |
| 65f38f15 | 9933 | |
| a345bc8d AM |
9934 | if (h->def_regular) |
| 9935 | return TRUE; | |
| 65f38f15 | 9936 | |
| a345bc8d AM |
9937 | info = inf; |
| 9938 | htab = ppc_hash_table (info); | |
| 9939 | if (htab == NULL) | |
| 9940 | return FALSE; | |
| 9941 | ||
| 9942 | s = htab->glink; | |
| 9943 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9944 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9945 | && pent->addend == 0) | |
| 9946 | { | |
| afe397ea AM |
9947 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9948 | and we are not generating a shared library or pie, then we | |
| 9949 | need to define the symbol in the executable on a call stub. | |
| 9950 | This is to avoid text relocations. */ | |
| a345bc8d | 9951 | s->size = (s->size + 15) & -16; |
| 8a2058b5 | 9952 | h->root.type = bfd_link_hash_defined; |
| afe397ea AM |
9953 | h->root.u.def.section = s; |
| 9954 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9955 | s->size += 16; |
| 9956 | break; | |
| 9957 | } | |
| 9958 | return TRUE; | |
| 9959 | } | |
| 9960 | ||
| 9961 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9962 | read-only sections. */ | |
| 9963 | ||
| 9964 | static bfd_boolean | |
| 9965 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9966 | { | |
| 9967 | if (h->root.type == bfd_link_hash_indirect) | |
| 9968 | return TRUE; | |
| 9969 | ||
| 9970 | if (readonly_dynrelocs (h)) | |
| 9971 | { | |
| 9972 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9973 | ||
| 9974 | /* Not an error, just cut short the traversal. */ | |
| 9975 | return FALSE; | |
| 65f38f15 | 9976 | } |
| b34976b6 | 9977 | return TRUE; |
| 65f38f15 AM |
9978 | } |
| 9979 | ||
| 9980 | /* Set the sizes of the dynamic sections. */ | |
| 9981 | ||
| b34976b6 | 9982 | static bfd_boolean |
| ee67d69a | 9983 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9984 | struct bfd_link_info *info) |
| 65f38f15 AM |
9985 | { |
| 9986 | struct ppc_link_hash_table *htab; | |
| 9987 | bfd *dynobj; | |
| 9988 | asection *s; | |
| b34976b6 | 9989 | bfd_boolean relocs; |
| 65f38f15 | 9990 | bfd *ibfd; |
| 7865406b | 9991 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9992 | |
| 9993 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9994 | if (htab == NULL) |
| 9995 | return FALSE; | |
| 9996 | ||
| 65f38f15 AM |
9997 | dynobj = htab->elf.dynobj; |
| 9998 | if (dynobj == NULL) | |
| 9999 | abort (); | |
| 10000 | ||
| 10001 | if (htab->elf.dynamic_sections_created) | |
| 10002 | { | |
| 10003 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 10004 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 10005 | { |
| 3d4d4302 | 10006 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
10007 | if (s == NULL) |
| 10008 | abort (); | |
| eea6121a | 10009 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
10010 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 10011 | } | |
| 10012 | } | |
| 10013 | ||
| 10014 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 10015 | relocs. */ | |
| c72f2fb2 | 10016 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 10017 | { |
| 411e1bfb AM |
10018 | struct got_entry **lgot_ents; |
| 10019 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
10020 | struct plt_entry **local_plt; |
| 10021 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10022 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10023 | bfd_size_type locsymcount; |
| 10024 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10025 | |
| 0c8d6e5c | 10026 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10027 | continue; |
| 10028 | ||
| 10029 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10030 | { | |
| 19e08130 | 10031 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10032 | |
| 6edfbbad | 10033 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10034 | { |
| ec338859 AM |
10035 | if (!bfd_is_abs_section (p->sec) |
| 10036 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10037 | { | |
| 10038 | /* Input section has been discarded, either because | |
| 10039 | it is a copy of a linkonce section or due to | |
| 10040 | linker script /DISCARD/, so we'll be discarding | |
| 10041 | the relocs too. */ | |
| 10042 | } | |
| 248866a8 | 10043 | else if (p->count != 0) |
| ec338859 | 10044 | { |
| 19e08130 AM |
10045 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10046 | if (p->ifunc) | |
| 33e44f2e | 10047 | srel = htab->elf.irelplt; |
| eea6121a | 10048 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10049 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10050 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10051 | } |
| 65f38f15 AM |
10052 | } |
| 10053 | } | |
| 10054 | ||
| 411e1bfb AM |
10055 | lgot_ents = elf_local_got_ents (ibfd); |
| 10056 | if (!lgot_ents) | |
| 65f38f15 AM |
10057 | continue; |
| 10058 | ||
| 0ffa91dd | 10059 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10060 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10061 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10062 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10063 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10064 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10065 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10066 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10067 | { |
| 0b8bcf0d | 10068 | struct got_entry **pent, *ent; |
| 411e1bfb | 10069 | |
| 0b8bcf0d AM |
10070 | pent = lgot_ents; |
| 10071 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10072 | if (ent->got.refcount > 0) |
| 10073 | { | |
| e7b938ca | 10074 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10075 | { |
| 927be08e | 10076 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10077 | *pent = ent->next; |
| 411e1bfb AM |
10078 | } |
| 10079 | else | |
| 10080 | { | |
| 19e08130 AM |
10081 | unsigned int ent_size = 8; |
| 10082 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10083 | ||
| eea6121a | 10084 | ent->got.offset = s->size; |
| e7b938ca | 10085 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10086 | { |
| 19e08130 AM |
10087 | ent_size *= 2; |
| 10088 | rel_size *= 2; | |
| 10089 | } | |
| 10090 | s->size += ent_size; | |
| 10091 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10092 | { | |
| 33e44f2e | 10093 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10094 | htab->got_reli_size += rel_size; |
| 10095 | } | |
| 0e1862bb | 10096 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
10097 | { |
| 10098 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10099 | srel->size += rel_size; | |
| 927be08e | 10100 | } |
| 0b8bcf0d | 10101 | pent = &ent->next; |
| 411e1bfb AM |
10102 | } |
| 10103 | } | |
| 10104 | else | |
| 0b8bcf0d | 10105 | *pent = ent->next; |
| 65f38f15 | 10106 | } |
| e054468f AM |
10107 | |
| 10108 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10109 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10110 | { | |
| 10111 | struct plt_entry *ent; | |
| 10112 | ||
| 10113 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10114 | if (ent->plt.refcount > 0) | |
| 10115 | { | |
| 33e44f2e | 10116 | s = htab->elf.iplt; |
| e054468f | 10117 | ent->plt.offset = s->size; |
| b9e5796b | 10118 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10119 | |
| 33e44f2e | 10120 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10121 | } |
| 10122 | else | |
| 10123 | ent->plt.offset = (bfd_vma) -1; | |
| 10124 | } | |
| 65f38f15 AM |
10125 | } |
| 10126 | ||
| 10127 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10128 | sym dynamic relocs. */ | |
| 4ce794b7 | 10129 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
10130 | /* Stash the end of glink branch table. */ |
| 10131 | if (htab->glink != NULL) | |
| 10132 | htab->glink->rawsize = htab->glink->size; | |
| 10133 | ||
| 0e1862bb | 10134 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10135 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10136 | |
| 7865406b | 10137 | first_tlsld = NULL; |
| c72f2fb2 | 10138 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10139 | { |
| 7865406b AM |
10140 | struct got_entry *ent; |
| 10141 | ||
| 0c8d6e5c | 10142 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10143 | continue; |
| 10144 | ||
| 7865406b AM |
10145 | ent = ppc64_tlsld_got (ibfd); |
| 10146 | if (ent->got.refcount > 0) | |
| 102890f0 | 10147 | { |
| 7865406b | 10148 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10149 | { |
| 7865406b AM |
10150 | ent->is_indirect = TRUE; |
| 10151 | ent->got.ent = first_tlsld; | |
| 10152 | } | |
| 10153 | else | |
| 10154 | { | |
| 10155 | if (first_tlsld == NULL) | |
| 10156 | first_tlsld = ent; | |
| 10157 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10158 | ent->got.offset = s->size; | |
| 10159 | ent->owner = ibfd; | |
| 10160 | s->size += 16; | |
| 0e1862bb | 10161 | if (bfd_link_pic (info)) |
| 7865406b AM |
10162 | { |
| 10163 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10164 | srel->size += sizeof (Elf64_External_Rela); | |
| 10165 | } | |
| 102890f0 AM |
10166 | } |
| 10167 | } | |
| 10168 | else | |
| 7865406b | 10169 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10170 | } |
| 10171 | ||
| 65f38f15 AM |
10172 | /* We now have determined the sizes of the various dynamic sections. |
| 10173 | Allocate memory for them. */ | |
| b34976b6 | 10174 | relocs = FALSE; |
| 65f38f15 AM |
10175 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10176 | { | |
| 10177 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10178 | continue; | |
| 10179 | ||
| 4ce794b7 | 10180 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10181 | /* These haven't been allocated yet; don't strip. */ |
| 10182 | continue; | |
| 33e44f2e AM |
10183 | else if (s == htab->elf.sgot |
| 10184 | || s == htab->elf.splt | |
| 10185 | || s == htab->elf.iplt | |
| c456f082 | 10186 | || s == htab->glink |
| 5474d94f AM |
10187 | || s == htab->elf.sdynbss |
| 10188 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10189 | { |
| 10190 | /* Strip this section if we don't need it; see the | |
| 10191 | comment below. */ | |
| 5bd4f169 | 10192 | } |
| 58d180e8 AM |
10193 | else if (s == htab->glink_eh_frame) |
| 10194 | { | |
| 10195 | if (!bfd_is_abs_section (s->output_section)) | |
| 10196 | /* Not sized yet. */ | |
| 10197 | continue; | |
| 10198 | } | |
| 70cc837d | 10199 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10200 | { |
| c456f082 | 10201 | if (s->size != 0) |
| 5bd4f169 | 10202 | { |
| 33e44f2e | 10203 | if (s != htab->elf.srelplt) |
| b34976b6 | 10204 | relocs = TRUE; |
| 5bd4f169 AM |
10205 | |
| 10206 | /* We use the reloc_count field as a counter if we need | |
| 10207 | to copy relocs into the output file. */ | |
| 10208 | s->reloc_count = 0; | |
| 10209 | } | |
| 10210 | } | |
| 65f38f15 | 10211 | else |
| 5bd4f169 AM |
10212 | { |
| 10213 | /* It's not one of our sections, so don't allocate space. */ | |
| 10214 | continue; | |
| 10215 | } | |
| 10216 | ||
| eea6121a | 10217 | if (s->size == 0) |
| 5bd4f169 | 10218 | { |
| c456f082 AM |
10219 | /* If we don't need this section, strip it from the |
| 10220 | output file. This is mostly to handle .rela.bss and | |
| 10221 | .rela.plt. We must create both sections in | |
| 10222 | create_dynamic_sections, because they must be created | |
| 10223 | before the linker maps input sections to output | |
| 10224 | sections. The linker does that before | |
| 10225 | adjust_dynamic_symbol is called, and it is that | |
| 10226 | function which decides whether anything needs to go | |
| 10227 | into these sections. */ | |
| 8423293d | 10228 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10229 | continue; |
| 10230 | } | |
| 10231 | ||
| c456f082 | 10232 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10233 | continue; |
| 10234 | ||
| 65f38f15 AM |
10235 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10236 | here in case unused entries are not reclaimed before the | |
| 10237 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10238 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10239 | sections instead of garbage. | |
| 10240 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10241 | the GOT and .dynrelro. */ |
| eea6121a | 10242 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10243 | if (s->contents == NULL) |
| b34976b6 | 10244 | return FALSE; |
| 5bd4f169 AM |
10245 | } |
| 10246 | ||
| c72f2fb2 | 10247 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10248 | { |
| 0c8d6e5c | 10249 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10250 | continue; |
| 10251 | ||
| e717da7e | 10252 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10253 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10254 | { |
| eea6121a | 10255 | if (s->size == 0) |
| 8423293d | 10256 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10257 | else |
| 10258 | { | |
| eea6121a | 10259 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10260 | if (s->contents == NULL) |
| 10261 | return FALSE; | |
| 10262 | } | |
| 10263 | } | |
| 10264 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10265 | if (s != NULL) | |
| 10266 | { | |
| eea6121a | 10267 | if (s->size == 0) |
| 8423293d | 10268 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10269 | else |
| 10270 | { | |
| eea6121a | 10271 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10272 | if (s->contents == NULL) |
| 10273 | return FALSE; | |
| 10274 | relocs = TRUE; | |
| 10275 | s->reloc_count = 0; | |
| 10276 | } | |
| 10277 | } | |
| 10278 | } | |
| 10279 | ||
| e86ce104 | 10280 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10281 | { |
| e8910a83 AM |
10282 | bfd_boolean tls_opt; |
| 10283 | ||
| 5bd4f169 AM |
10284 | /* Add some entries to the .dynamic section. We fill in the |
| 10285 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10286 | must add the entries now so that we get the correct size for | |
| 10287 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10288 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10289 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10290 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10291 | |
| 0e1862bb | 10292 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10293 | { |
| dc810e39 | 10294 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10295 | return FALSE; |
| 5bd4f169 AM |
10296 | } |
| 10297 | ||
| 33e44f2e | 10298 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10299 | { |
| dc810e39 AM |
10300 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10301 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10302 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10303 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10304 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10305 | return FALSE; |
| 5bd4f169 AM |
10306 | } |
| 10307 | ||
| ee67d69a | 10308 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10309 | { |
| 10310 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10311 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10312 | return FALSE; |
| 19397422 AM |
10313 | } |
| 10314 | ||
| 7c9cf415 | 10315 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10316 | && htab->tls_get_addr_fd != NULL |
| 10317 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10318 | if (tls_opt || !htab->opd_abi) | |
| 10319 | { | |
| 10320 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10321 | return FALSE; | |
| 10322 | } | |
| a7f2871e | 10323 | |
| 5bd4f169 AM |
10324 | if (relocs) |
| 10325 | { | |
| dc810e39 AM |
10326 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10327 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10328 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10329 | return FALSE; |
| 5bd4f169 | 10330 | |
| 65f38f15 AM |
10331 | /* If any dynamic relocs apply to a read-only section, |
| 10332 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10333 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10334 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10335 | |
| 65f38f15 | 10336 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10337 | { |
| 65f38f15 | 10338 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10339 | return FALSE; |
| 5bd4f169 | 10340 | } |
| 5bd4f169 | 10341 | } |
| 5bd4f169 | 10342 | } |
| 65f38f15 | 10343 | #undef add_dynamic_entry |
| 5bd4f169 | 10344 | |
| b34976b6 | 10345 | return TRUE; |
| 5bd4f169 AM |
10346 | } |
| 10347 | ||
| a345bc8d AM |
10348 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10349 | ||
| 10350 | static bfd_boolean | |
| 10351 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10352 | { | |
| 10353 | if (h->plt.plist != NULL | |
| 10354 | && !h->def_regular | |
| 10355 | && !h->pointer_equality_needed) | |
| 10356 | return FALSE; | |
| 10357 | ||
| 10358 | return _bfd_elf_hash_symbol (h); | |
| 10359 | } | |
| 10360 | ||
| 721956f4 | 10361 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10362 | |
| 4ce794b7 AM |
10363 | static inline enum ppc_stub_type |
| 10364 | ppc_type_of_stub (asection *input_sec, | |
| 10365 | const Elf_Internal_Rela *rel, | |
| 10366 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10367 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10368 | bfd_vma destination, |
| 10369 | unsigned long local_off) | |
| 5bd4f169 | 10370 | { |
| 721956f4 AM |
10371 | struct ppc_link_hash_entry *h = *hash; |
| 10372 | bfd_vma location; | |
| 10373 | bfd_vma branch_offset; | |
| 10374 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10375 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10376 | |
| 721956f4 AM |
10377 | if (h != NULL) |
| 10378 | { | |
| e054468f | 10379 | struct plt_entry *ent; |
| 7fe2b9a6 | 10380 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10381 | if (h->oh != NULL |
| 10382 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10383 | { |
| 10384 | fdh = ppc_follow_link (h->oh); | |
| 10385 | *hash = fdh; | |
| 10386 | } | |
| 8387904d | 10387 | |
| e054468f AM |
10388 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10389 | if (ent->addend == rel->r_addend | |
| 10390 | && ent->plt.offset != (bfd_vma) -1) | |
| 10391 | { | |
| e054468f AM |
10392 | *plt_ent = ent; |
| 10393 | return ppc_stub_plt_call; | |
| 10394 | } | |
| 5bd4f169 | 10395 | |
| 7fe2b9a6 AM |
10396 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10397 | either a defined function descriptor or a defined entry symbol | |
| 10398 | in a regular object file, then it is pointless trying to make | |
| 10399 | any other type of stub. */ | |
| 854b41e7 AM |
10400 | if (!is_static_defined (&fdh->elf) |
| 10401 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10402 | return ppc_stub_none; |
| 5d1634d7 | 10403 | } |
| e054468f AM |
10404 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10405 | { | |
| 10406 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10407 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10408 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10409 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10410 | ||
| 10411 | if (local_plt[r_symndx] != NULL) | |
| 10412 | { | |
| 10413 | struct plt_entry *ent; | |
| 10414 | ||
| 10415 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10416 | if (ent->addend == rel->r_addend | |
| 10417 | && ent->plt.offset != (bfd_vma) -1) | |
| 10418 | { | |
| 10419 | *plt_ent = ent; | |
| 10420 | return ppc_stub_plt_call; | |
| 10421 | } | |
| 10422 | } | |
| 10423 | } | |
| 5d1634d7 | 10424 | |
| 721956f4 AM |
10425 | /* Determine where the call point is. */ |
| 10426 | location = (input_sec->output_offset | |
| 10427 | + input_sec->output_section->vma | |
| 10428 | + rel->r_offset); | |
| 5d1634d7 | 10429 | |
| 721956f4 AM |
10430 | branch_offset = destination - location; |
| 10431 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10432 | |
| 721956f4 AM |
10433 | /* Determine if a long branch stub is needed. */ |
| 10434 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10435 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10436 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10437 | |
| 6911b7dc | 10438 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10439 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10440 | is needed later. */ | |
| 10441 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10442 | |
| 721956f4 | 10443 | return ppc_stub_none; |
| 5d1634d7 AM |
10444 | } |
| 10445 | ||
| 794e51c0 AM |
10446 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10447 | to update a plt entry in one thread and have another thread see a | |
| 10448 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10449 | barrier in the call stub. One solution is to make the load of the | |
| 10450 | toc word seem to appear to depend on the load of the function entry | |
| 10451 | word. Another solution is to test for r2 being zero, and branch to | |
| 10452 | the appropriate glink entry if so. | |
| 10453 | ||
| 10454 | . fake dep barrier compare | |
| 71a39c98 AM |
10455 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10456 | . mtctr 12 mtctr 12 | |
| 10457 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10458 | . add 2,2,11 cmpldi 2,0 |
| 10459 | . ld 2,xxx+8(2) bnectr+ | |
| 10460 | . bctr b <glink_entry> | |
| 10461 | ||
| 10462 | The solution involving the compare turns out to be faster, so | |
| 10463 | that's what we use unless the branch won't reach. */ | |
| 10464 | ||
| 10465 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10466 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10467 | |
| 5d1634d7 AM |
10468 | #define PPC_LO(v) ((v) & 0xffff) |
| 10469 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10470 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10471 | ||
| 794e51c0 AM |
10472 | static inline unsigned int |
| 10473 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10474 | struct ppc_stub_hash_entry *stub_entry, | |
| 10475 | bfd_vma off) | |
| 10476 | { | |
| b9e5796b AM |
10477 | unsigned size = 12; |
| 10478 | ||
| 10479 | if (ALWAYS_EMIT_R2SAVE | |
| 10480 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10481 | size += 4; | |
| 10482 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10483 | size += 4; |
| b9e5796b AM |
10484 | if (htab->opd_abi) |
| 10485 | { | |
| 10486 | size += 4; | |
| e7d1c40c | 10487 | if (htab->params->plt_static_chain) |
| b9e5796b | 10488 | size += 4; |
| bd4d2eaa AM |
10489 | if (htab->params->plt_thread_safe |
| 10490 | && htab->elf.dynamic_sections_created | |
| 10491 | && stub_entry->h != NULL | |
| 10492 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10493 | size += 8; |
| e7d1c40c | 10494 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10495 | size += 4; |
| 10496 | } | |
| 794e51c0 AM |
10497 | if (stub_entry->h != NULL |
| 10498 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10499 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10500 | && htab->params->tls_get_addr_opt) |
| 794e51c0 AM |
10501 | size += 13 * 4; |
| 10502 | return size; | |
| 10503 | } | |
| 10504 | ||
| 10505 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10506 | then return the padding needed to do so. */ | |
| 10507 | static inline unsigned int | |
| 10508 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10509 | struct ppc_stub_hash_entry *stub_entry, | |
| 10510 | bfd_vma plt_off) | |
| 10511 | { | |
| e7d1c40c | 10512 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10513 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10514 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10515 | |
| 10516 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10517 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10518 | return stub_align - (stub_off & (stub_align - 1)); |
| 10519 | return 0; | |
| 10520 | } | |
| 10521 | ||
| 10522 | /* Build a .plt call stub. */ | |
| 10523 | ||
| 10524 | static inline bfd_byte * | |
| 10525 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10526 | struct ppc_stub_hash_entry *stub_entry, | |
| 10527 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10528 | { | |
| e7d1c40c | 10529 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10530 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10531 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10532 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10533 | && htab->elf.dynamic_sections_created | |
| 10534 | && stub_entry->h != NULL | |
| 10535 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10536 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10537 | bfd_vma cmp_branch_off = 0; | |
| 10538 | ||
| 10539 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10540 | && plt_load_toc |
| 794e51c0 | 10541 | && plt_thread_safe |
| bd4d2eaa AM |
10542 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10543 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10544 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10545 | { |
| 10546 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10547 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10548 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10549 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10550 | bfd_vma to, from; | |
| 10551 | ||
| 68d62958 AM |
10552 | if (pltindex > 32768) |
| 10553 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10554 | to = (glinkoff |
| 10555 | + htab->glink->output_offset | |
| 10556 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10557 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10558 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10559 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10560 | + 4 * (PPC_HA (offset) != 0) | |
| 10561 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10562 | != PPC_HA (offset)) | |
| 10563 | + 4 * (plt_static_chain != 0) | |
| 10564 | + 20 | |
| 6f20ed8a AM |
10565 | + stub_entry->group->stub_sec->output_offset |
| 10566 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10567 | cmp_branch_off = to - from; |
| 10568 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10569 | } | |
| 10570 | ||
| ac2df442 AM |
10571 | if (PPC_HA (offset) != 0) |
| 10572 | { | |
| 176a0d42 AM |
10573 | if (r != NULL) |
| 10574 | { | |
| 794e51c0 AM |
10575 | if (ALWAYS_EMIT_R2SAVE |
| 10576 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10577 | r[0].r_offset += 4; | |
| 176a0d42 | 10578 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10579 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10580 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10581 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10582 | if (plt_load_toc) |
| 176a0d42 | 10583 | { |
| b9e5796b | 10584 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10585 | { |
| b9e5796b AM |
10586 | r[2].r_offset = r[1].r_offset + 4; |
| 10587 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10588 | r[2].r_addend = r[0].r_addend; | |
| 10589 | } | |
| 10590 | else | |
| 10591 | { | |
| 10592 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10593 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10594 | r[2].r_addend = r[0].r_addend + 8; | |
| 10595 | if (plt_static_chain) | |
| 10596 | { | |
| 10597 | r[3].r_offset = r[2].r_offset + 4; | |
| 10598 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10599 | r[3].r_addend = r[0].r_addend + 16; | |
| 10600 | } | |
| c7131b65 | 10601 | } |
| 176a0d42 AM |
10602 | } |
| 10603 | } | |
| 794e51c0 AM |
10604 | if (ALWAYS_EMIT_R2SAVE |
| 10605 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10606 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10607 | if (plt_load_toc) |
| 10608 | { | |
| 10609 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10610 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10611 | } | |
| 10612 | else | |
| 10613 | { | |
| 10614 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10615 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10616 | } | |
| b9e5796b AM |
10617 | if (plt_load_toc |
| 10618 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10619 | { |
| 71a39c98 | 10620 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10621 | offset = 0; |
| 10622 | } | |
| 71a39c98 | 10623 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10624 | if (plt_load_toc) |
| 794e51c0 | 10625 | { |
| b9e5796b AM |
10626 | if (use_fake_dep) |
| 10627 | { | |
| 10628 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10629 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10630 | } | |
| 10631 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10632 | if (plt_static_chain) | |
| 10633 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10634 | } |
| ac2df442 AM |
10635 | } |
| 10636 | else | |
| 10637 | { | |
| 176a0d42 AM |
10638 | if (r != NULL) |
| 10639 | { | |
| 794e51c0 AM |
10640 | if (ALWAYS_EMIT_R2SAVE |
| 10641 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10642 | r[0].r_offset += 4; | |
| 176a0d42 | 10643 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10644 | if (plt_load_toc) |
| 176a0d42 | 10645 | { |
| b9e5796b | 10646 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10647 | { |
| b9e5796b AM |
10648 | r[1].r_offset = r[0].r_offset + 4; |
| 10649 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10650 | r[1].r_addend = r[0].r_addend; | |
| 10651 | } | |
| 10652 | else | |
| 10653 | { | |
| 10654 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10655 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10656 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10657 | if (plt_static_chain) | |
| 10658 | { | |
| 10659 | r[2].r_offset = r[1].r_offset + 4; | |
| 10660 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10661 | r[2].r_addend = r[0].r_addend + 8; | |
| 10662 | } | |
| c7131b65 | 10663 | } |
| 176a0d42 AM |
10664 | } |
| 10665 | } | |
| 794e51c0 AM |
10666 | if (ALWAYS_EMIT_R2SAVE |
| 10667 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10668 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10669 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10670 | if (plt_load_toc |
| 10671 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10672 | { |
| 10673 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10674 | offset = 0; | |
| 10675 | } | |
| 71a39c98 | 10676 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10677 | if (plt_load_toc) |
| 794e51c0 | 10678 | { |
| b9e5796b AM |
10679 | if (use_fake_dep) |
| 10680 | { | |
| 10681 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10682 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10683 | } | |
| 10684 | if (plt_static_chain) | |
| 10685 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10686 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10687 | } |
| ac2df442 | 10688 | } |
| b9e5796b | 10689 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10690 | { |
| 10691 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10692 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10693 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10694 | } |
| 10695 | else | |
| 10696 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10697 | return p; |
| 10698 | } | |
| 10699 | ||
| a7f2871e AM |
10700 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10701 | ||
| 10702 | #define LD_R11_0R3 0xe9630000 | |
| 10703 | #define LD_R12_0R3 0xe9830000 | |
| 10704 | #define MR_R0_R3 0x7c601b78 | |
| 10705 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10706 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10707 | #define BEQLR 0x4d820020 | |
| 10708 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10709 | #define STD_R11_0R1 0xf9610000 |
| 10710 | #define BCTRL 0x4e800421 | |
| 10711 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10712 | #define MTLR_R11 0x7d6803a6 |
| 10713 | ||
| 10714 | static inline bfd_byte * | |
| 794e51c0 AM |
10715 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10716 | struct ppc_stub_hash_entry *stub_entry, | |
| 10717 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10718 | { |
| e7d1c40c | 10719 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10720 | |
| a7f2871e AM |
10721 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10722 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10723 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10724 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10725 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10726 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10727 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10728 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10729 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10730 | |
| 10731 | if (r != NULL) | |
| 10732 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10733 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10734 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10735 | ||
| a078d95a | 10736 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10737 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10738 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10739 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10740 | ||
| 10741 | return p; | |
| 10742 | } | |
| 10743 | ||
| 176a0d42 AM |
10744 | static Elf_Internal_Rela * |
| 10745 | get_relocs (asection *sec, int count) | |
| 10746 | { | |
| 10747 | Elf_Internal_Rela *relocs; | |
| 10748 | struct bfd_elf_section_data *elfsec_data; | |
| 10749 | ||
| 10750 | elfsec_data = elf_section_data (sec); | |
| 10751 | relocs = elfsec_data->relocs; | |
| 10752 | if (relocs == NULL) | |
| 10753 | { | |
| 10754 | bfd_size_type relsize; | |
| 10755 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10756 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10757 | if (relocs == NULL) | |
| 10758 | return NULL; | |
| 10759 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10760 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10761 | sizeof (Elf_Internal_Shdr)); | |
| 10762 | if (elfsec_data->rela.hdr == NULL) | |
| 10763 | return NULL; | |
| 10764 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10765 | * sizeof (Elf64_External_Rela)); | |
| 10766 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10767 | sec->reloc_count = 0; |
| 10768 | } | |
| 10769 | relocs += sec->reloc_count; | |
| 10770 | sec->reloc_count += count; | |
| 10771 | return relocs; | |
| 10772 | } | |
| 10773 | ||
| aa374f67 | 10774 | static bfd_vma |
| 25f53a85 | 10775 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10776 | struct ppc_stub_hash_entry *stub_entry) |
| 10777 | { | |
| 25f53a85 | 10778 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10779 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10780 | |
| 10781 | if (r2off == 0) | |
| 10782 | { | |
| 10783 | /* Support linking -R objects. Get the toc pointer from the | |
| 10784 | opd entry. */ | |
| 10785 | char buf[8]; | |
| b9e5796b AM |
10786 | if (!htab->opd_abi) |
| 10787 | return r2off; | |
| aa374f67 AM |
10788 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10789 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10790 | ||
| 10791 | if (strcmp (opd->name, ".opd") != 0 | |
| 10792 | || opd->reloc_count != 0) | |
| 10793 | { | |
| bc30df16 | 10794 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10795 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10796 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10797 | return (bfd_vma) -1; |
| aa374f67 AM |
10798 | } |
| 10799 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10800 | return (bfd_vma) -1; |
| aa374f67 | 10801 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10802 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10803 | } |
| 6f20ed8a | 10804 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10805 | return r2off; |
| 10806 | } | |
| 10807 | ||
| b34976b6 | 10808 | static bfd_boolean |
| 4ce794b7 | 10809 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10810 | { |
| 721956f4 AM |
10811 | struct ppc_stub_hash_entry *stub_entry; |
| 10812 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10813 | struct bfd_link_info *info; |
| 10814 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10815 | bfd_byte *loc; |
| 10816 | bfd_byte *p; | |
| ee75fd95 | 10817 | bfd_vma dest, off; |
| 721956f4 | 10818 | int size; |
| 176a0d42 | 10819 | Elf_Internal_Rela *r; |
| e054468f | 10820 | asection *plt; |
| 5d1634d7 | 10821 | |
| 721956f4 AM |
10822 | /* Massage our args to the form they really have. */ |
| 10823 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10824 | info = in_arg; |
| 5d1634d7 | 10825 | |
| 5d1634d7 | 10826 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10827 | if (htab == NULL) |
| 10828 | return FALSE; | |
| 5d1634d7 | 10829 | |
| 721956f4 | 10830 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10831 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10832 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10833 | |
| 4ce794b7 | 10834 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10835 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10836 | { |
| 721956f4 | 10837 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10838 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10839 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10840 | dest = (stub_entry->target_value |
| 10841 | + stub_entry->target_section->output_offset | |
| 10842 | + stub_entry->target_section->output_section->vma); | |
| 10843 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10844 | off = dest; | |
| 5d1634d7 | 10845 | |
| 721956f4 AM |
10846 | /* And this is where we are coming from. */ |
| 10847 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10848 | + stub_entry->group->stub_sec->output_offset |
| 10849 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10850 | |
| ac2df442 AM |
10851 | size = 4; |
| 10852 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10853 | { |
| 25f53a85 | 10854 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10855 | |
| a7c49797 | 10856 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10857 | { |
| 10858 | htab->stub_error = TRUE; | |
| 10859 | return FALSE; | |
| 10860 | } | |
| e7d1c40c | 10861 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10862 | loc += 4; |
| a7c49797 | 10863 | size = 8; |
| ac2df442 AM |
10864 | if (PPC_HA (r2off) != 0) |
| 10865 | { | |
| e7d1c40c AM |
10866 | bfd_put_32 (htab->params->stub_bfd, |
| 10867 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10868 | loc += 4; |
| a7c49797 AM |
10869 | size += 4; |
| 10870 | } | |
| 10871 | if (PPC_LO (r2off) != 0) | |
| 10872 | { | |
| 10873 | bfd_put_32 (htab->params->stub_bfd, | |
| 10874 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10875 | loc += 4; | |
| 10876 | size += 4; | |
| ac2df442 | 10877 | } |
| ac2df442 | 10878 | off -= size - 4; |
| ad8e1ba5 | 10879 | } |
| e7d1c40c | 10880 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10881 | |
| 5c3dead3 AM |
10882 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10883 | { | |
| bc30df16 AM |
10884 | info->callbacks->einfo |
| 10885 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10886 | stub_entry->root.string); | |
| 5c3dead3 AM |
10887 | htab->stub_error = TRUE; |
| 10888 | return FALSE; | |
| 10889 | } | |
| ee75fd95 AM |
10890 | |
| 10891 | if (info->emitrelocations) | |
| 10892 | { | |
| 6f20ed8a | 10893 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10894 | if (r == NULL) |
| 10895 | return FALSE; | |
| 6f20ed8a | 10896 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10897 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10898 | r->r_addend = dest; | |
| 10899 | if (stub_entry->h != NULL) | |
| 10900 | { | |
| 10901 | struct elf_link_hash_entry **hashes; | |
| 10902 | unsigned long symndx; | |
| 10903 | struct ppc_link_hash_entry *h; | |
| 10904 | ||
| e7d1c40c | 10905 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10906 | if (hashes == NULL) |
| 10907 | { | |
| 10908 | bfd_size_type hsize; | |
| 10909 | ||
| 10910 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10911 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10912 | if (hashes == NULL) |
| 10913 | return FALSE; | |
| e7d1c40c | 10914 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10915 | htab->stub_globals = 1; |
| 10916 | } | |
| 10917 | symndx = htab->stub_globals++; | |
| 10918 | h = stub_entry->h; | |
| 10919 | hashes[symndx] = &h->elf; | |
| 10920 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10921 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10922 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10923 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10924 | /* H is an opd symbol. The addend must be zero. */ | |
| 10925 | r->r_addend = 0; | |
| 10926 | else | |
| 10927 | { | |
| 10928 | off = (h->elf.root.u.def.value | |
| 10929 | + h->elf.root.u.def.section->output_offset | |
| 10930 | + h->elf.root.u.def.section->output_section->vma); | |
| 10931 | r->r_addend -= off; | |
| 10932 | } | |
| 10933 | } | |
| 10934 | } | |
| 721956f4 | 10935 | break; |
| e86ce104 | 10936 | |
| 721956f4 | 10937 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10938 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10939 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10940 | stub_entry->root.string + 9, | |
| b34976b6 | 10941 | FALSE, FALSE); |
| 721956f4 AM |
10942 | if (br_entry == NULL) |
| 10943 | { | |
| 8de848d8 | 10944 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10945 | stub_entry->root.string); |
| b34976b6 AM |
10946 | htab->stub_error = TRUE; |
| 10947 | return FALSE; | |
| 721956f4 AM |
10948 | } |
| 10949 | ||
| 176a0d42 AM |
10950 | dest = (stub_entry->target_value |
| 10951 | + stub_entry->target_section->output_offset | |
| 10952 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10953 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10954 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10955 | |
| 176a0d42 | 10956 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10957 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10958 | |
| f94498ff | 10959 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10960 | { |
| f94498ff | 10961 | br_entry->iter = 0; |
| 84f5d08e | 10962 | |
| f94498ff | 10963 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10964 | { |
| f94498ff AM |
10965 | /* Create a reloc for the branch lookup table entry. */ |
| 10966 | Elf_Internal_Rela rela; | |
| 10967 | bfd_byte *rl; | |
| 10968 | ||
| 10969 | rela.r_offset = (br_entry->offset | |
| 10970 | + htab->brlt->output_offset | |
| 10971 | + htab->brlt->output_section->vma); | |
| 10972 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10973 | rela.r_addend = dest; |
| f94498ff AM |
10974 | |
| 10975 | rl = htab->relbrlt->contents; | |
| 10976 | rl += (htab->relbrlt->reloc_count++ | |
| 10977 | * sizeof (Elf64_External_Rela)); | |
| 10978 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10979 | } | |
| 10980 | else if (info->emitrelocations) | |
| 10981 | { | |
| 176a0d42 AM |
10982 | r = get_relocs (htab->brlt, 1); |
| 10983 | if (r == NULL) | |
| 10984 | return FALSE; | |
| 10985 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10986 | normal reloc processing. Symbols and offsets are not | |
| 10987 | translated from input file to output file form, so | |
| 10988 | set up the offset per the output file. */ | |
| f94498ff AM |
10989 | r->r_offset = (br_entry->offset |
| 10990 | + htab->brlt->output_offset | |
| 10991 | + htab->brlt->output_section->vma); | |
| 10992 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10993 | r->r_addend = dest; |
| 84f5d08e | 10994 | } |
| 84f5d08e | 10995 | } |
| 721956f4 | 10996 | |
| 176a0d42 AM |
10997 | dest = (br_entry->offset |
| 10998 | + htab->brlt->output_offset | |
| 10999 | + htab->brlt->output_section->vma); | |
| 11000 | ||
| 11001 | off = (dest | |
| 4ce794b7 | 11002 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 11003 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11004 | |
| ad8e1ba5 | 11005 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11006 | { |
| 25f53a85 | 11007 | info->callbacks->einfo |
| bc30df16 | 11008 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 11009 | stub_entry->root.string); |
| 5d1634d7 | 11010 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11011 | htab->stub_error = TRUE; |
| 11012 | return FALSE; | |
| 5d1634d7 | 11013 | } |
| 41bd81ab | 11014 | |
| 176a0d42 AM |
11015 | if (info->emitrelocations) |
| 11016 | { | |
| 6f20ed8a | 11017 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11018 | if (r == NULL) |
| 11019 | return FALSE; | |
| 6f20ed8a | 11020 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11021 | if (bfd_big_endian (info->output_bfd)) |
| 11022 | r[0].r_offset += 2; | |
| 00f412ee | 11023 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11024 | r[0].r_offset += 4; |
| 11025 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11026 | r[0].r_addend = dest; | |
| 11027 | if (PPC_HA (off) != 0) | |
| 11028 | { | |
| 11029 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11030 | r[1].r_offset = r[0].r_offset + 4; | |
| 11031 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11032 | r[1].r_addend = r[0].r_addend; | |
| 11033 | } | |
| 11034 | } | |
| 11035 | ||
| 00f412ee | 11036 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11037 | { |
| 176a0d42 | 11038 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11039 | { |
| 11040 | size = 16; | |
| e7d1c40c | 11041 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11042 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11043 | loc += 4; |
| e7d1c40c | 11044 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11045 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11046 | } |
| 11047 | else | |
| 11048 | { | |
| 11049 | size = 12; | |
| e7d1c40c AM |
11050 | bfd_put_32 (htab->params->stub_bfd, |
| 11051 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 11052 | } |
| ad8e1ba5 AM |
11053 | } |
| 11054 | else | |
| 11055 | { | |
| 25f53a85 | 11056 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11057 | |
| a7c49797 | 11058 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11059 | { |
| 11060 | htab->stub_error = TRUE; | |
| 11061 | return FALSE; | |
| 11062 | } | |
| ad8e1ba5 | 11063 | |
| e7d1c40c | 11064 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 11065 | loc += 4; |
| 00f412ee | 11066 | size = 16; |
| 176a0d42 | 11067 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11068 | { |
| 11069 | size += 4; | |
| e7d1c40c | 11070 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11071 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11072 | loc += 4; |
| e7d1c40c | 11073 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11074 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11075 | } |
| 11076 | else | |
| e7d1c40c | 11077 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
11078 | |
| 11079 | if (PPC_HA (r2off) != 0) | |
| 11080 | { | |
| 11081 | size += 4; | |
| 00f412ee | 11082 | loc += 4; |
| e7d1c40c AM |
11083 | bfd_put_32 (htab->params->stub_bfd, |
| 11084 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
11085 | } |
| 11086 | if (PPC_LO (r2off) != 0) | |
| 11087 | { | |
| 11088 | size += 4; | |
| ac2df442 | 11089 | loc += 4; |
| e7d1c40c AM |
11090 | bfd_put_32 (htab->params->stub_bfd, |
| 11091 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 11092 | } |
| ad8e1ba5 AM |
11093 | } |
| 11094 | loc += 4; | |
| e7d1c40c | 11095 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 11096 | loc += 4; |
| e7d1c40c | 11097 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 11098 | break; |
| 5d1634d7 | 11099 | |
| 721956f4 | 11100 | case ppc_stub_plt_call: |
| 794e51c0 | 11101 | case ppc_stub_plt_call_r2save: |
| e054468f | 11102 | if (stub_entry->h != NULL |
| b31867b6 AM |
11103 | && stub_entry->h->is_func_descriptor |
| 11104 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11105 | { |
| b31867b6 AM |
11106 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11107 | ||
| 11108 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11109 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11110 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11111 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11112 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11113 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11114 | } |
| 11115 | ||
| 721956f4 | 11116 | /* Now build the stub. */ |
| e054468f | 11117 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11118 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11119 | abort (); |
| 11120 | ||
| 33e44f2e | 11121 | plt = htab->elf.splt; |
| 25f23106 AM |
11122 | if (!htab->elf.dynamic_sections_created |
| 11123 | || stub_entry->h == NULL | |
| 11124 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11125 | plt = htab->elf.iplt; |
| e054468f AM |
11126 | |
| 11127 | dest += plt->output_offset + plt->output_section->vma; | |
| 11128 | ||
| 11129 | if (stub_entry->h == NULL | |
| 11130 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11131 | { | |
| 11132 | Elf_Internal_Rela rela; | |
| 11133 | bfd_byte *rl; | |
| 11134 | ||
| 11135 | rela.r_offset = dest; | |
| ee67d69a AM |
11136 | if (htab->opd_abi) |
| 11137 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11138 | else | |
| 11139 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11140 | rela.r_addend = (stub_entry->target_value |
| 11141 | + stub_entry->target_section->output_offset | |
| 11142 | + stub_entry->target_section->output_section->vma); | |
| 11143 | ||
| 33e44f2e AM |
11144 | rl = (htab->elf.irelplt->contents |
| 11145 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11146 | * sizeof (Elf64_External_Rela))); |
| 11147 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
11148 | stub_entry->plt_ent->plt.offset |= 1; |
| 11149 | } | |
| 176a0d42 AM |
11150 | |
| 11151 | off = (dest | |
| e054468f | 11152 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11153 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11154 | |
| ad8e1ba5 | 11155 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11156 | { |
| 25f53a85 | 11157 | info->callbacks->einfo |
| 695344c0 | 11158 | /* xgettext:c-format */ |
| bc30df16 | 11159 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11160 | stub_entry->h != NULL |
| 11161 | ? stub_entry->h->elf.root.root.string | |
| 11162 | : "<local sym>"); | |
| 721956f4 | 11163 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11164 | htab->stub_error = TRUE; |
| 11165 | return FALSE; | |
| 721956f4 AM |
11166 | } |
| 11167 | ||
| e7d1c40c | 11168 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11169 | { |
| 11170 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11171 | ||
| 6f20ed8a AM |
11172 | stub_entry->group->stub_sec->size += pad; |
| 11173 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11174 | loc += pad; |
| 11175 | } | |
| 11176 | ||
| 176a0d42 AM |
11177 | r = NULL; |
| 11178 | if (info->emitrelocations) | |
| 11179 | { | |
| 6f20ed8a | 11180 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11181 | ((PPC_HA (off) != 0) |
| 11182 | + (htab->opd_abi | |
| e7d1c40c | 11183 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11184 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11185 | : 1))); | |
| 176a0d42 AM |
11186 | if (r == NULL) |
| 11187 | return FALSE; | |
| 6f20ed8a | 11188 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11189 | if (bfd_big_endian (info->output_bfd)) |
| 11190 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11191 | r[0].r_addend = dest; |
| 11192 | } | |
| a7f2871e AM |
11193 | if (stub_entry->h != NULL |
| 11194 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11195 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11196 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11197 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11198 | else |
| 794e51c0 | 11199 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11200 | size = p - loc; |
| 11201 | break; | |
| 11202 | ||
| a4b6fadd AM |
11203 | case ppc_stub_save_res: |
| 11204 | return TRUE; | |
| 11205 | ||
| 721956f4 AM |
11206 | default: |
| 11207 | BFD_FAIL (); | |
| b34976b6 | 11208 | return FALSE; |
| 721956f4 AM |
11209 | } |
| 11210 | ||
| 6f20ed8a | 11211 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11212 | |
| e7d1c40c | 11213 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11214 | { |
| 11215 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11216 | size_t len1, len2; |
| 11217 | char *name; | |
| 11218 | const char *const stub_str[] = { "long_branch", | |
| 11219 | "long_branch_r2off", | |
| 11220 | "plt_branch", | |
| 11221 | "plt_branch_r2off", | |
| 794e51c0 | 11222 | "plt_call", |
| ee75fd95 AM |
11223 | "plt_call" }; |
| 11224 | ||
| 11225 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11226 | len2 = strlen (stub_entry->root.string); | |
| 11227 | name = bfd_malloc (len1 + len2 + 2); | |
| 11228 | if (name == NULL) | |
| 11229 | return FALSE; | |
| 11230 | memcpy (name, stub_entry->root.string, 9); | |
| 11231 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11232 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11233 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11234 | if (h == NULL) |
| 11235 | return FALSE; | |
| 11236 | if (h->root.type == bfd_link_hash_new) | |
| 11237 | { | |
| 11238 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11239 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11240 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11241 | h->ref_regular = 1; |
| 11242 | h->def_regular = 1; | |
| 11243 | h->ref_regular_nonweak = 1; | |
| 11244 | h->forced_local = 1; | |
| 11245 | h->non_elf = 0; | |
| 2ec55de3 | 11246 | h->root.linker_def = 1; |
| 97b639ba AM |
11247 | } |
| 11248 | } | |
| 11249 | ||
| b34976b6 | 11250 | return TRUE; |
| 721956f4 AM |
11251 | } |
| 11252 | ||
| 11253 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11254 | we know stub section sizes, and select plt_branch stubs where | |
| 11255 | long_branch stubs won't do. */ | |
| 11256 | ||
| b34976b6 | 11257 | static bfd_boolean |
| 4ce794b7 | 11258 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11259 | { |
| 11260 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11261 | struct bfd_link_info *info; |
| 721956f4 AM |
11262 | struct ppc_link_hash_table *htab; |
| 11263 | bfd_vma off; | |
| 11264 | int size; | |
| 11265 | ||
| 11266 | /* Massage our args to the form they really have. */ | |
| 11267 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11268 | info = in_arg; |
| 11269 | ||
| 11270 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11271 | if (htab == NULL) |
| 11272 | return FALSE; | |
| 721956f4 | 11273 | |
| a4b6fadd AM |
11274 | if (stub_entry->h != NULL |
| 11275 | && stub_entry->h->save_res | |
| 11276 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11277 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11278 | { | |
| 11279 | /* Don't make stubs to out-of-line register save/restore | |
| 11280 | functions. Instead, emit copies of the functions. */ | |
| 11281 | stub_entry->group->needs_save_res = 1; | |
| 11282 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11283 | return TRUE; | |
| 11284 | } | |
| 11285 | ||
| 794e51c0 AM |
11286 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11287 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11288 | { |
| e054468f AM |
11289 | asection *plt; |
| 11290 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11291 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11292 | abort (); |
| 33e44f2e | 11293 | plt = htab->elf.splt; |
| 25f23106 AM |
11294 | if (!htab->elf.dynamic_sections_created |
| 11295 | || stub_entry->h == NULL | |
| 11296 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11297 | plt = htab->elf.iplt; |
| e054468f AM |
11298 | off += (plt->output_offset |
| 11299 | + plt->output_section->vma | |
| 11300 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11301 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11302 | |
| 794e51c0 | 11303 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11304 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11305 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11306 | if (info->emitrelocations) |
| 11307 | { | |
| 6f20ed8a | 11308 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11309 | += ((PPC_HA (off) != 0) |
| 11310 | + (htab->opd_abi | |
| e7d1c40c | 11311 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11312 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11313 | : 1)); | |
| 6f20ed8a | 11314 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11315 | } |
| 721956f4 AM |
11316 | } |
| 11317 | else | |
| 11318 | { | |
| ad8e1ba5 AM |
11319 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11320 | variants. */ | |
| ac2df442 | 11321 | bfd_vma r2off = 0; |
| 6911b7dc | 11322 | bfd_vma local_off = 0; |
| ac2df442 | 11323 | |
| 721956f4 AM |
11324 | off = (stub_entry->target_value |
| 11325 | + stub_entry->target_section->output_offset | |
| 11326 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11327 | off -= (stub_entry->group->stub_sec->size |
| 11328 | + stub_entry->group->stub_sec->output_offset | |
| 11329 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11330 | |
| ad8e1ba5 AM |
11331 | /* Reset the stub type from the plt variant in case we now |
| 11332 | can reach with a shorter stub. */ | |
| 11333 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11334 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11335 | ||
| 11336 | size = 4; | |
| 11337 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11338 | { | |
| 25f53a85 | 11339 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11340 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11341 | { |
| 11342 | htab->stub_error = TRUE; | |
| 11343 | return FALSE; | |
| 11344 | } | |
| a7c49797 | 11345 | size = 8; |
| ac2df442 | 11346 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11347 | size += 4; |
| 11348 | if (PPC_LO (r2off) != 0) | |
| 11349 | size += 4; | |
| ac2df442 | 11350 | off -= size - 4; |
| ad8e1ba5 AM |
11351 | } |
| 11352 | ||
| 6911b7dc AM |
11353 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11354 | ||
| b9e5796b AM |
11355 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11356 | Do the same for -R objects without function descriptors. */ | |
| 11357 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11358 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11359 | && r2off == 0 |
| 11360 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11361 | { |
| 11362 | struct ppc_branch_hash_entry *br_entry; | |
| 11363 | ||
| 11364 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11365 | stub_entry->root.string + 9, | |
| b34976b6 | 11366 | TRUE, FALSE); |
| 721956f4 AM |
11367 | if (br_entry == NULL) |
| 11368 | { | |
| 8de848d8 | 11369 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11370 | stub_entry->root.string); |
| b34976b6 AM |
11371 | htab->stub_error = TRUE; |
| 11372 | return FALSE; | |
| 721956f4 AM |
11373 | } |
| 11374 | ||
| 11375 | if (br_entry->iter != htab->stub_iteration) | |
| 11376 | { | |
| 11377 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11378 | br_entry->offset = htab->brlt->size; |
| 11379 | htab->brlt->size += 8; | |
| 63bc6f6c | 11380 | |
| ee75fd95 | 11381 | if (htab->relbrlt != NULL) |
| eea6121a | 11382 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11383 | else if (info->emitrelocations) |
| 11384 | { | |
| 11385 | htab->brlt->reloc_count += 1; | |
| 11386 | htab->brlt->flags |= SEC_RELOC; | |
| 11387 | } | |
| 721956f4 | 11388 | } |
| ad8e1ba5 AM |
11389 | |
| 11390 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11391 | off = (br_entry->offset |
| 11392 | + htab->brlt->output_offset | |
| 11393 | + htab->brlt->output_section->vma | |
| 11394 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11395 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11396 | |
| 176a0d42 AM |
11397 | if (info->emitrelocations) |
| 11398 | { | |
| 6f20ed8a AM |
11399 | stub_entry->group->stub_sec->reloc_count |
| 11400 | += 1 + (PPC_HA (off) != 0); | |
| 11401 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11402 | } |
| 11403 | ||
| 00f412ee | 11404 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11405 | { |
| 11406 | size = 12; | |
| 176a0d42 | 11407 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11408 | size = 16; |
| 11409 | } | |
| 11410 | else | |
| 11411 | { | |
| 00f412ee | 11412 | size = 16; |
| 176a0d42 | 11413 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11414 | size += 4; |
| 11415 | ||
| 11416 | if (PPC_HA (r2off) != 0) | |
| 11417 | size += 4; | |
| 00f412ee AM |
11418 | if (PPC_LO (r2off) != 0) |
| 11419 | size += 4; | |
| ac2df442 | 11420 | } |
| 721956f4 | 11421 | } |
| 84f5d08e AM |
11422 | else if (info->emitrelocations) |
| 11423 | { | |
| 6f20ed8a AM |
11424 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11425 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11426 | } |
| 721956f4 AM |
11427 | } |
| 11428 | ||
| 6f20ed8a | 11429 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11430 | return TRUE; |
| 721956f4 AM |
11431 | } |
| 11432 | ||
| 11433 | /* Set up various things so that we can make a list of input sections | |
| 11434 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11435 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11436 | |
| 11437 | int | |
| e7d1c40c | 11438 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11439 | { |
| 6f20ed8a | 11440 | unsigned int id; |
| 721956f4 AM |
11441 | bfd_size_type amt; |
| 11442 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11443 | ||
| 4dfe6ac6 NC |
11444 | if (htab == NULL) |
| 11445 | return -1; | |
| 4c52953f | 11446 | |
| 6f20ed8a AM |
11447 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11448 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11449 | htab->sec_info = bfd_zmalloc (amt); | |
| 11450 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11451 | return -1; |
| 11452 | ||
| 3d6f9012 AM |
11453 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11454 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11455 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11456 | |
| 721956f4 AM |
11457 | return 1; |
| 11458 | } | |
| 11459 | ||
| 927be08e AM |
11460 | /* Set up for first pass at multitoc partitioning. */ |
| 11461 | ||
| 11462 | void | |
| 11463 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11464 | { | |
| 11465 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11466 | ||
| 1c865ab2 | 11467 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11468 | htab->toc_bfd = NULL; |
| 11469 | htab->toc_first_sec = NULL; | |
| 11470 | } | |
| 11471 | ||
| e717da7e AM |
11472 | /* The linker repeatedly calls this function for each TOC input section |
| 11473 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11474 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11475 | |
| 927be08e | 11476 | bfd_boolean |
| 4ce794b7 | 11477 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11478 | { |
| 11479 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11480 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11481 | |
| 4dfe6ac6 NC |
11482 | if (htab == NULL) |
| 11483 | return FALSE; | |
| 11484 | ||
| 927be08e | 11485 | if (!htab->second_toc_pass) |
| 4c52953f | 11486 | { |
| 927be08e | 11487 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11488 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11489 | ||
| 11490 | if (new_bfd) | |
| bf102f86 AM |
11491 | { |
| 11492 | htab->toc_bfd = isec->owner; | |
| 11493 | htab->toc_first_sec = isec; | |
| 11494 | } | |
| 927be08e | 11495 | |
| bf102f86 AM |
11496 | addr = isec->output_offset + isec->output_section->vma; |
| 11497 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11498 | limit = 0x80008000; |
| 11499 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11500 | limit = 0x10000; | |
| 11501 | if (off + isec->size > limit) | |
| bf102f86 AM |
11502 | { |
| 11503 | addr = (htab->toc_first_sec->output_offset | |
| 11504 | + htab->toc_first_sec->output_section->vma); | |
| 11505 | htab->toc_curr = addr; | |
| a27e685f | 11506 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11507 | } |
| 99877b66 | 11508 | |
| 927be08e AM |
11509 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11510 | for the input section to be the offset relative to the | |
| 11511 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11512 | offset allows us to move the toc as a whole without | |
| 11513 | recalculating input elf_gp. */ | |
| 11514 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11515 | off += TOC_BASE_OFF; | |
| 11516 | ||
| 11517 | /* Die if someone uses a linker script that doesn't keep input | |
| 11518 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11519 | if (new_bfd |
| 11520 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11521 | && elf_gp (isec->owner) != off) |
| 11522 | return FALSE; | |
| 11523 | ||
| 11524 | elf_gp (isec->owner) = off; | |
| 11525 | return TRUE; | |
| 4c52953f | 11526 | } |
| 927be08e AM |
11527 | |
| 11528 | /* During the second pass toc_first_sec points to the start of | |
| 11529 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11530 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11531 | if (htab->toc_bfd == isec->owner) | |
| 11532 | return TRUE; | |
| 11533 | htab->toc_bfd = isec->owner; | |
| 11534 | ||
| 11535 | if (htab->toc_first_sec == NULL | |
| 11536 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11537 | { | |
| 11538 | htab->toc_curr = elf_gp (isec->owner); | |
| 11539 | htab->toc_first_sec = isec; | |
| 11540 | } | |
| 11541 | addr = (htab->toc_first_sec->output_offset | |
| 11542 | + htab->toc_first_sec->output_section->vma); | |
| 11543 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11544 | elf_gp (isec->owner) = off; | |
| 11545 | ||
| 11546 | return TRUE; | |
| ad8e1ba5 AM |
11547 | } |
| 11548 | ||
| 927be08e AM |
11549 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11550 | symbol H. */ | |
| 11551 | ||
| 11552 | static bfd_boolean | |
| 11553 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11554 | { | |
| 11555 | if (h->root.type == bfd_link_hash_indirect) | |
| 11556 | return TRUE; | |
| 11557 | ||
| 927be08e AM |
11558 | merge_got_entries (&h->got.glist); |
| 11559 | ||
| 11560 | return TRUE; | |
| 11561 | } | |
| 11562 | ||
| 11563 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11564 | symbol H. */ | |
| 11565 | ||
| 11566 | static bfd_boolean | |
| 11567 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11568 | { | |
| 11569 | struct got_entry *gent; | |
| 11570 | ||
| 11571 | if (h->root.type == bfd_link_hash_indirect) | |
| 11572 | return TRUE; | |
| 11573 | ||
| 927be08e AM |
11574 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11575 | if (!gent->is_indirect) | |
| 11576 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11577 | return TRUE; | |
| 11578 | } | |
| 11579 | ||
| 11580 | /* Called on the first multitoc pass after the last call to | |
| 11581 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11582 | entries. */ | |
| 11583 | ||
| 11584 | bfd_boolean | |
| 11585 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11586 | { |
| 11587 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11588 | struct bfd *ibfd, *ibfd2; |
| 11589 | bfd_boolean done_something; | |
| 11590 | ||
| 11591 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11592 | |
| 7865406b AM |
11593 | if (!htab->do_multi_toc) |
| 11594 | return FALSE; | |
| 11595 | ||
| d0fae19d | 11596 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11597 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11598 | ||
| 11599 | /* And tlsld_got. */ | |
| c72f2fb2 | 11600 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11601 | { |
| 11602 | struct got_entry *ent, *ent2; | |
| 11603 | ||
| 11604 | if (!is_ppc64_elf (ibfd)) | |
| 11605 | continue; | |
| 11606 | ||
| 11607 | ent = ppc64_tlsld_got (ibfd); | |
| 11608 | if (!ent->is_indirect | |
| 11609 | && ent->got.offset != (bfd_vma) -1) | |
| 11610 | { | |
| c72f2fb2 | 11611 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11612 | { |
| 11613 | if (!is_ppc64_elf (ibfd2)) | |
| 11614 | continue; | |
| 11615 | ||
| 11616 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11617 | if (!ent2->is_indirect | |
| 11618 | && ent2->got.offset != (bfd_vma) -1 | |
| 11619 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11620 | { | |
| 11621 | ent2->is_indirect = TRUE; | |
| 11622 | ent2->got.ent = ent; | |
| 11623 | } | |
| 11624 | } | |
| 11625 | } | |
| 11626 | } | |
| 11627 | ||
| 11628 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11629 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11630 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11631 | htab->got_reli_size = 0; |
| 11632 | ||
| c72f2fb2 | 11633 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11634 | { |
| 11635 | asection *got, *relgot; | |
| 11636 | ||
| 11637 | if (!is_ppc64_elf (ibfd)) | |
| 11638 | continue; | |
| 11639 | ||
| 11640 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11641 | if (got != NULL) | |
| 11642 | { | |
| 11643 | got->rawsize = got->size; | |
| 11644 | got->size = 0; | |
| 11645 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11646 | relgot->rawsize = relgot->size; | |
| 11647 | relgot->size = 0; | |
| 11648 | } | |
| 11649 | } | |
| 11650 | ||
| 11651 | /* Now reallocate the got, local syms first. We don't need to | |
| 11652 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11653 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11654 | { |
| 11655 | struct got_entry **lgot_ents; | |
| 11656 | struct got_entry **end_lgot_ents; | |
| 11657 | struct plt_entry **local_plt; | |
| 11658 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11659 | unsigned char *lgot_masks; |
| 927be08e AM |
11660 | bfd_size_type locsymcount; |
| 11661 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11662 | asection *s; |
| 927be08e AM |
11663 | |
| 11664 | if (!is_ppc64_elf (ibfd)) | |
| 11665 | continue; | |
| 11666 | ||
| 11667 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11668 | if (!lgot_ents) | |
| 11669 | continue; | |
| 11670 | ||
| 11671 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11672 | locsymcount = symtab_hdr->sh_info; | |
| 11673 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11674 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11675 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11676 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11677 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11678 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11679 | { | |
| 11680 | struct got_entry *ent; | |
| 11681 | ||
| 11682 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11683 | { |
| 19e08130 AM |
11684 | unsigned int ent_size = 8; |
| 11685 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11686 | ||
| d0fae19d AM |
11687 | ent->got.offset = s->size; |
| 11688 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11689 | { |
| 19e08130 AM |
11690 | ent_size *= 2; |
| 11691 | rel_size *= 2; | |
| 11692 | } | |
| 11693 | s->size += ent_size; | |
| 11694 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11695 | { | |
| 33e44f2e | 11696 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11697 | htab->got_reli_size += rel_size; |
| 11698 | } | |
| 0e1862bb | 11699 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11700 | { |
| 11701 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11702 | srel->size += rel_size; | |
| d0fae19d AM |
11703 | } |
| 11704 | } | |
| 927be08e AM |
11705 | } |
| 11706 | } | |
| 11707 | ||
| 11708 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11709 | ||
| c72f2fb2 | 11710 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11711 | { |
| 11712 | struct got_entry *ent; | |
| 11713 | ||
| 11714 | if (!is_ppc64_elf (ibfd)) | |
| 11715 | continue; | |
| 11716 | ||
| 11717 | ent = ppc64_tlsld_got (ibfd); | |
| 11718 | if (!ent->is_indirect | |
| 11719 | && ent->got.offset != (bfd_vma) -1) | |
| 11720 | { | |
| 11721 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11722 | ent->got.offset = s->size; | |
| 11723 | s->size += 16; | |
| 0e1862bb | 11724 | if (bfd_link_pic (info)) |
| 927be08e AM |
11725 | { |
| 11726 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11727 | srel->size += sizeof (Elf64_External_Rela); | |
| 11728 | } | |
| 11729 | } | |
| 11730 | } | |
| 11731 | ||
| 33e44f2e | 11732 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11733 | if (!done_something) |
| c72f2fb2 | 11734 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11735 | { |
| 11736 | asection *got; | |
| 11737 | ||
| 11738 | if (!is_ppc64_elf (ibfd)) | |
| 11739 | continue; | |
| 11740 | ||
| 11741 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11742 | if (got != NULL) | |
| 11743 | { | |
| 11744 | done_something = got->rawsize != got->size; | |
| 11745 | if (done_something) | |
| 11746 | break; | |
| 11747 | } | |
| 11748 | } | |
| 11749 | ||
| 11750 | if (done_something) | |
| e7d1c40c | 11751 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11752 | |
| 11753 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11754 | on input sections. */ | |
| 11755 | htab->toc_bfd = NULL; | |
| 11756 | htab->toc_first_sec = NULL; | |
| 11757 | htab->second_toc_pass = TRUE; | |
| 11758 | return done_something; | |
| 11759 | } | |
| 11760 | ||
| 11761 | /* Called after second pass of multitoc partitioning. */ | |
| 11762 | ||
| 11763 | void | |
| 11764 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11765 | { | |
| 11766 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11767 | ||
| 11768 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11769 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11770 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11771 | } |
| 11772 | ||
| 9b5ecbd0 AM |
11773 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11774 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11775 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11776 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11777 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11778 | for a stub was detected. If called from the top level, a return of | |
| 11779 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11780 | |
| 11781 | static int | |
| 4ce794b7 | 11782 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11783 | { |
| 9b5ecbd0 | 11784 | int ret; |
| 70cc837d AM |
11785 | |
| 11786 | /* Mark this section as checked. */ | |
| 11787 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11788 | |
| 772119ce AM |
11789 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11790 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11791 | return 0; | |
| 11792 | ||
| eea6121a | 11793 | if (isec->size == 0) |
| 082c50f8 AM |
11794 | return 0; |
| 11795 | ||
| 4c52953f AM |
11796 | if (isec->output_section == NULL) |
| 11797 | return 0; | |
| 11798 | ||
| 4c52953f | 11799 | ret = 0; |
| 70cc837d | 11800 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11801 | { |
| 70cc837d AM |
11802 | Elf_Internal_Rela *relstart, *rel; |
| 11803 | Elf_Internal_Sym *local_syms; | |
| 11804 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11805 | |
| 70cc837d AM |
11806 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11807 | info->keep_memory); | |
| 11808 | if (relstart == NULL) | |
| 11809 | return -1; | |
| 90aecf7a | 11810 | |
| 70cc837d AM |
11811 | /* Look for branches to outside of this section. */ |
| 11812 | local_syms = NULL; | |
| 11813 | htab = ppc_hash_table (info); | |
| 11814 | if (htab == NULL) | |
| 11815 | return -1; | |
| 4c52953f | 11816 | |
| 70cc837d | 11817 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11818 | { |
| 70cc837d AM |
11819 | enum elf_ppc64_reloc_type r_type; |
| 11820 | unsigned long r_symndx; | |
| 11821 | struct elf_link_hash_entry *h; | |
| 11822 | struct ppc_link_hash_entry *eh; | |
| 11823 | Elf_Internal_Sym *sym; | |
| 11824 | asection *sym_sec; | |
| 11825 | struct _opd_sec_data *opd; | |
| 11826 | bfd_vma sym_value; | |
| 11827 | bfd_vma dest; | |
| 11828 | ||
| 11829 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11830 | if (r_type != R_PPC64_REL24 | |
| 11831 | && r_type != R_PPC64_REL14 | |
| 11832 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11833 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11834 | continue; | |
| 4c52953f | 11835 | |
| 70cc837d AM |
11836 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11837 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11838 | isec->owner)) | |
| 4c52953f | 11839 | { |
| 70cc837d AM |
11840 | ret = -1; |
| 11841 | break; | |
| 11842 | } | |
| 4c52953f | 11843 | |
| 70cc837d AM |
11844 | /* Calls to dynamic lib functions go through a plt call stub |
| 11845 | that uses r2. */ | |
| 11846 | eh = (struct ppc_link_hash_entry *) h; | |
| 11847 | if (eh != NULL | |
| 11848 | && (eh->elf.plt.plist != NULL | |
| 11849 | || (eh->oh != NULL | |
| 11850 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11851 | { | |
| 11852 | ret = 1; | |
| 11853 | break; | |
| 4c52953f AM |
11854 | } |
| 11855 | ||
| 70cc837d AM |
11856 | if (sym_sec == NULL) |
| 11857 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11858 | continue; |
| 4c52953f | 11859 | |
| 70cc837d AM |
11860 | /* Assume branches to other sections not included in the |
| 11861 | link need stubs too, to cover -R and absolute syms. */ | |
| 11862 | if (sym_sec->output_section == NULL) | |
| 11863 | { | |
| 11864 | ret = 1; | |
| 11865 | break; | |
| 11866 | } | |
| 4c52953f | 11867 | |
| 70cc837d AM |
11868 | if (h == NULL) |
| 11869 | sym_value = sym->st_value; | |
| 11870 | else | |
| 11871 | { | |
| 11872 | if (h->root.type != bfd_link_hash_defined | |
| 11873 | && h->root.type != bfd_link_hash_defweak) | |
| 11874 | abort (); | |
| 11875 | sym_value = h->root.u.def.value; | |
| 11876 | } | |
| 11877 | sym_value += rel->r_addend; | |
| 4c52953f | 11878 | |
| 70cc837d AM |
11879 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11880 | opd = get_opd_info (sym_sec); | |
| 11881 | if (opd != NULL) | |
| 11882 | { | |
| 11883 | if (h == NULL && opd->adjust != NULL) | |
| 11884 | { | |
| 11885 | long adjust; | |
| 4c52953f | 11886 | |
| 92a9c616 | 11887 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11888 | if (adjust == -1) |
| 11889 | /* Assume deleted functions won't ever be called. */ | |
| 11890 | continue; | |
| 11891 | sym_value += adjust; | |
| 11892 | } | |
| 4c52953f | 11893 | |
| aef36ac1 AM |
11894 | dest = opd_entry_value (sym_sec, sym_value, |
| 11895 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11896 | if (dest == (bfd_vma) -1) |
| 11897 | continue; | |
| 11898 | } | |
| 11899 | else | |
| 11900 | dest = (sym_value | |
| 11901 | + sym_sec->output_offset | |
| 11902 | + sym_sec->output_section->vma); | |
| 4c52953f | 11903 | |
| 70cc837d AM |
11904 | /* Ignore branch to self. */ |
| 11905 | if (sym_sec == isec) | |
| 11906 | continue; | |
| 4c52953f | 11907 | |
| 70cc837d AM |
11908 | /* If the called function uses the toc, we need a stub. */ |
| 11909 | if (sym_sec->has_toc_reloc | |
| 11910 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11911 | { |
| 70cc837d | 11912 | ret = 1; |
| 4c52953f AM |
11913 | break; |
| 11914 | } | |
| 70cc837d AM |
11915 | |
| 11916 | /* Assume any branch that needs a long branch stub might in fact | |
| 11917 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11918 | else if (dest - (isec->output_offset | |
| 11919 | + isec->output_section->vma | |
| 6911b7dc AM |
11920 | + rel->r_offset) + (1 << 25) |
| 11921 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11922 | ? h->other | |
| 11923 | : sym->st_other)) | |
| 4c52953f | 11924 | { |
| 70cc837d AM |
11925 | ret = 1; |
| 11926 | break; | |
| 11927 | } | |
| 11928 | ||
| 11929 | /* If calling back to a section in the process of being | |
| 11930 | tested, we can't say for sure that no toc adjusting stubs | |
| 11931 | are needed, so don't return zero. */ | |
| 11932 | else if (sym_sec->call_check_in_progress) | |
| 11933 | ret = 2; | |
| 11934 | ||
| 11935 | /* Branches to another section that itself doesn't have any TOC | |
| 11936 | references are OK. Recursively call ourselves to check. */ | |
| 11937 | else if (!sym_sec->call_check_done) | |
| 11938 | { | |
| 11939 | int recur; | |
| 11940 | ||
| 11941 | /* Mark current section as indeterminate, so that other | |
| 11942 | sections that call back to current won't be marked as | |
| 11943 | known. */ | |
| 11944 | isec->call_check_in_progress = 1; | |
| 11945 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11946 | isec->call_check_in_progress = 0; | |
| 11947 | ||
| 4c52953f AM |
11948 | if (recur != 0) |
| 11949 | { | |
| 70cc837d AM |
11950 | ret = recur; |
| 11951 | if (recur != 2) | |
| 11952 | break; | |
| 4c52953f AM |
11953 | } |
| 11954 | } | |
| 4c52953f | 11955 | } |
| 70cc837d AM |
11956 | |
| 11957 | if (local_syms != NULL | |
| 11958 | && (elf_symtab_hdr (isec->owner).contents | |
| 11959 | != (unsigned char *) local_syms)) | |
| 11960 | free (local_syms); | |
| 11961 | if (elf_section_data (isec)->relocs != relstart) | |
| 11962 | free (relstart); | |
| 9b5ecbd0 AM |
11963 | } |
| 11964 | ||
| 70cc837d AM |
11965 | if ((ret & 1) == 0 |
| 11966 | && isec->map_head.s != NULL | |
| 11967 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11968 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11969 | { | |
| 11970 | if (isec->map_head.s->has_toc_reloc | |
| 11971 | || isec->map_head.s->makes_toc_func_call) | |
| 11972 | ret = 1; | |
| 11973 | else if (!isec->map_head.s->call_check_done) | |
| 11974 | { | |
| 11975 | int recur; | |
| 11976 | isec->call_check_in_progress = 1; | |
| 11977 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11978 | isec->call_check_in_progress = 0; | |
| 11979 | if (recur != 0) | |
| 11980 | ret = recur; | |
| 11981 | } | |
| 11982 | } | |
| 11983 | ||
| 11984 | if (ret == 1) | |
| 11985 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11986 | |
| 9b5ecbd0 AM |
11987 | return ret; |
| 11988 | } | |
| 11989 | ||
| 721956f4 AM |
11990 | /* The linker repeatedly calls this function for each input section, |
| 11991 | in the order that input sections are linked into output sections. | |
| 11992 | Build lists of input sections to determine groupings between which | |
| 11993 | we may insert linker stubs. */ | |
| 11994 | ||
| 9b5ecbd0 | 11995 | bfd_boolean |
| 4ce794b7 | 11996 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11997 | { |
| 11998 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11999 | ||
| 4dfe6ac6 NC |
12000 | if (htab == NULL) |
| 12001 | return FALSE; | |
| 12002 | ||
| 734b6cf9 | 12003 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12004 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12005 | { |
| 3d6f9012 AM |
12006 | /* This happens to make the list in reverse order, |
| 12007 | which is what we want. */ | |
| 6f20ed8a AM |
12008 | htab->sec_info[isec->id].u.list |
| 12009 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12010 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12011 | } |
| ad8e1ba5 | 12012 | |
| 4c52953f | 12013 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12014 | { |
| 8b974ba3 AM |
12015 | /* Analyse sections that aren't already flagged as needing a |
| 12016 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12017 | .fixup contains branches, but only back to the function that | |
| 12018 | hit an exception. */ | |
| 12019 | if (!(isec->has_toc_reloc | |
| 12020 | || (isec->flags & SEC_CODE) == 0 | |
| 12021 | || strcmp (isec->name, ".fixup") == 0 | |
| 12022 | || isec->call_check_done)) | |
| 12023 | { | |
| 12024 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12025 | return FALSE; |
| 8b974ba3 AM |
12026 | } |
| 12027 | /* Make all sections use the TOC assigned for this object file. | |
| 12028 | This will be wrong for pasted sections; We fix that in | |
| 12029 | check_pasted_section(). */ | |
| 12030 | if (elf_gp (isec->owner) != 0) | |
| 12031 | htab->toc_curr = elf_gp (isec->owner); | |
| 12032 | } | |
| 12033 | ||
| 6f20ed8a | 12034 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12035 | return TRUE; |
| 721956f4 AM |
12036 | } |
| 12037 | ||
| 70cc837d AM |
12038 | /* Check that all .init and .fini sections use the same toc, if they |
| 12039 | have toc relocs. */ | |
| 12040 | ||
| 12041 | static bfd_boolean | |
| 12042 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12043 | { | |
| 12044 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12045 | ||
| 12046 | if (o != NULL) | |
| 12047 | { | |
| 12048 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12049 | bfd_vma toc_off = 0; | |
| 12050 | asection *i; | |
| 12051 | ||
| 12052 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12053 | if (i->has_toc_reloc) | |
| 12054 | { | |
| 12055 | if (toc_off == 0) | |
| 6f20ed8a AM |
12056 | toc_off = htab->sec_info[i->id].toc_off; |
| 12057 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12058 | return FALSE; |
| 12059 | } | |
| 6683a28d AM |
12060 | |
| 12061 | if (toc_off == 0) | |
| 12062 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12063 | if (i->makes_toc_func_call) | |
| 12064 | { | |
| 6f20ed8a | 12065 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12066 | break; |
| 12067 | } | |
| 12068 | ||
| 70cc837d AM |
12069 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12070 | if (toc_off != 0) | |
| 12071 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12072 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12073 | } |
| 12074 | return TRUE; | |
| 12075 | } | |
| 12076 | ||
| 12077 | bfd_boolean | |
| 12078 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12079 | { | |
| 12080 | return (check_pasted_section (info, ".init") | |
| 12081 | & check_pasted_section (info, ".fini")); | |
| 12082 | } | |
| 12083 | ||
| 721956f4 AM |
12084 | /* See whether we can group stub sections together. Grouping stub |
| 12085 | sections may result in fewer stubs. More importantly, we need to | |
| 12086 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12087 | .fini output sections respectively, because glibc splits the | |
| 12088 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12089 | the middle of a function is not a good idea. */ | |
| 12090 | ||
| 6f20ed8a AM |
12091 | static bfd_boolean |
| 12092 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12093 | bfd_size_type stub_group_size, |
| 12094 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12095 | { |
| 6f20ed8a AM |
12096 | struct ppc_link_hash_table *htab; |
| 12097 | asection *osec; | |
| 7c8fe5c4 AM |
12098 | bfd_boolean suppress_size_errors; |
| 12099 | ||
| 6f20ed8a AM |
12100 | htab = ppc_hash_table (info); |
| 12101 | if (htab == NULL) | |
| 12102 | return FALSE; | |
| 12103 | ||
| 7c8fe5c4 | 12104 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12105 | if (stub_group_size == 1) |
| 12106 | { | |
| 12107 | /* Default values. */ | |
| 12108 | if (stubs_always_before_branch) | |
| 09f92717 | 12109 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12110 | else |
| 09f92717 | 12111 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12112 | suppress_size_errors = TRUE; |
| 12113 | } | |
| 12114 | ||
| 6f20ed8a | 12115 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12116 | { |
| 6f20ed8a AM |
12117 | asection *tail; |
| 12118 | ||
| 12119 | if (osec->id >= htab->sec_info_arr_size) | |
| 12120 | continue; | |
| 12121 | ||
| 12122 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12123 | while (tail != NULL) |
| 721956f4 | 12124 | { |
| 734b6cf9 AM |
12125 | asection *curr; |
| 12126 | asection *prev; | |
| 12127 | bfd_size_type total; | |
| 12128 | bfd_boolean big_sec; | |
| 12129 | bfd_vma curr_toc; | |
| 6f20ed8a | 12130 | struct map_stub *group; |
| 09f92717 | 12131 | bfd_size_type group_size; |
| 734b6cf9 AM |
12132 | |
| 12133 | curr = tail; | |
| eea6121a | 12134 | total = tail->size; |
| 09f92717 AM |
12135 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12136 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12137 | ? stub_group_size >> 10 : stub_group_size); | |
| 12138 | ||
| 12139 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12140 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12141 | /* xgettext:c-format */ |
| 4eca0228 AM |
12142 | _bfd_error_handler (_("%B section %A exceeds stub group size"), |
| 12143 | tail->owner, tail); | |
| 6f20ed8a | 12144 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12145 | |
| 6f20ed8a | 12146 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12147 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12148 | < (ppc64_elf_section_data (prev) != NULL |
| 12149 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12150 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12151 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12152 | curr = prev; |
| 12153 | ||
| 12154 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12155 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12156 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12157 | group_size, in which case we may be toast.) We should |
| 12158 | really be keeping track of the total size of stubs added | |
| 12159 | here, as stubs contribute to the final output section | |
| 12160 | size. That's a little tricky, and this way will only | |
| 12161 | break if stubs added make the total size more than 2^25, | |
| 12162 | ie. for the default stub_group_size, if stubs total more | |
| 12163 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12164 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12165 | if (group == NULL) | |
| 12166 | return FALSE; | |
| 12167 | group->link_sec = curr; | |
| 12168 | group->stub_sec = NULL; | |
| a4b6fadd AM |
12169 | group->needs_save_res = 0; |
| 12170 | group->next = htab->group; | |
| 12171 | htab->group = group; | |
| 734b6cf9 | 12172 | do |
| 721956f4 | 12173 | { |
| 6f20ed8a | 12174 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12175 | /* Set up this stub group. */ |
| 6f20ed8a | 12176 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12177 | } |
| 734b6cf9 AM |
12178 | while (tail != curr && (tail = prev) != NULL); |
| 12179 | ||
| 09f92717 | 12180 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12181 | bytes before the stub section can be handled by it too. |
| 12182 | Don't do this if we have a really large section after the | |
| 12183 | stubs, as adding more stubs increases the chance that | |
| 12184 | branches may not reach into the stub section. */ | |
| 12185 | if (!stubs_always_before_branch && !big_sec) | |
| 12186 | { | |
| 12187 | total = 0; | |
| 12188 | while (prev != NULL | |
| 12189 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12190 | < (ppc64_elf_section_data (prev) != NULL |
| 12191 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12192 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12193 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12194 | { |
| 12195 | tail = prev; | |
| 6f20ed8a AM |
12196 | prev = htab->sec_info[tail->id].u.list; |
| 12197 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12198 | } |
| 12199 | } | |
| 12200 | tail = prev; | |
| 721956f4 AM |
12201 | } |
| 12202 | } | |
| 6f20ed8a | 12203 | return TRUE; |
| 721956f4 AM |
12204 | } |
| 12205 | ||
| 58d180e8 AM |
12206 | static const unsigned char glink_eh_frame_cie[] = |
| 12207 | { | |
| 12208 | 0, 0, 0, 16, /* length. */ | |
| 12209 | 0, 0, 0, 0, /* id. */ | |
| 12210 | 1, /* CIE version. */ | |
| 12211 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12212 | 4, /* Code alignment. */ | |
| 12213 | 0x78, /* Data alignment. */ | |
| 12214 | 65, /* RA reg. */ | |
| 12215 | 1, /* Augmentation size. */ | |
| 12216 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
12217 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 12218 | 0, 0, 0, 0 | |
| 58d180e8 AM |
12219 | }; |
| 12220 | ||
| d969d15f AM |
12221 | /* Stripping output sections is normally done before dynamic section |
| 12222 | symbols have been allocated. This function is called later, and | |
| 12223 | handles cases like htab->brlt which is mapped to its own output | |
| 12224 | section. */ | |
| 12225 | ||
| 12226 | static void | |
| 12227 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12228 | { | |
| 12229 | if (isec->size == 0 | |
| 12230 | && isec->output_section->size == 0 | |
| 53d8967a | 12231 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12232 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12233 | isec->output_section) | |
| 12234 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12235 | { | |
| 12236 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12237 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12238 | info->output_bfd->section_count--; | |
| 12239 | } | |
| 12240 | } | |
| 12241 | ||
| 721956f4 AM |
12242 | /* Determine and set the size of the stub section for a final link. |
| 12243 | ||
| 12244 | The basic idea here is to examine all the relocations looking for | |
| 12245 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12246 | instruction. */ | |
| 12247 | ||
| b34976b6 | 12248 | bfd_boolean |
| e7d1c40c | 12249 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12250 | { |
| 12251 | bfd_size_type stub_group_size; | |
| b34976b6 | 12252 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12253 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12254 | ||
| 4dfe6ac6 NC |
12255 | if (htab == NULL) |
| 12256 | return FALSE; | |
| 12257 | ||
| 0e1862bb | 12258 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12259 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12260 | if (!htab->opd_abi) |
| e7d1c40c AM |
12261 | htab->params->plt_thread_safe = 0; |
| 12262 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12263 | { |
| e2458743 | 12264 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12265 | { |
| 12266 | "pthread_create", | |
| 12267 | /* libstdc++ */ | |
| 12268 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12269 | /* librt */ | |
| 12270 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12271 | "mq_notify", "create_timer", | |
| 12272 | /* libanl */ | |
| 12273 | "getaddrinfo_a", | |
| 12274 | /* libgomp */ | |
| 2300b5a1 | 12275 | "GOMP_parallel", |
| 794e51c0 | 12276 | "GOMP_parallel_start", |
| 2300b5a1 | 12277 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12278 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12279 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12280 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12281 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12282 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12283 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12284 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12285 | "GOMP_parallel_sections", |
| 68ffbac6 | 12286 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12287 | /* libgo */ |
| 12288 | "__go_go", | |
| 794e51c0 AM |
12289 | }; |
| 12290 | unsigned i; | |
| 12291 | ||
| a4b6fadd | 12292 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12293 | { |
| 12294 | struct elf_link_hash_entry *h; | |
| 12295 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12296 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12297 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12298 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12299 | break; |
| 12300 | } | |
| 12301 | } | |
| e7d1c40c AM |
12302 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12303 | if (htab->params->group_size < 0) | |
| 12304 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12305 | else |
| e7d1c40c | 12306 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12307 | |
| 6f20ed8a AM |
12308 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12309 | return FALSE; | |
| 721956f4 | 12310 | |
| c9301e31 AM |
12311 | #define STUB_SHRINK_ITER 20 |
| 12312 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12313 | exit on a stub section shrinking. This is to break out of a | |
| 12314 | pathological case where adding stubs on one iteration decreases | |
| 12315 | section gaps (perhaps due to alignment), which then requires | |
| 12316 | fewer or smaller stubs on the next iteration. */ | |
| 12317 | ||
| 721956f4 AM |
12318 | while (1) |
| 12319 | { | |
| 12320 | bfd *input_bfd; | |
| 12321 | unsigned int bfd_indx; | |
| a4b6fadd | 12322 | struct map_stub *group; |
| 721956f4 | 12323 | asection *stub_sec; |
| 721956f4 AM |
12324 | |
| 12325 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12326 | |
| 12327 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12328 | input_bfd != NULL; | |
| c72f2fb2 | 12329 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12330 | { |
| 12331 | Elf_Internal_Shdr *symtab_hdr; | |
| 12332 | asection *section; | |
| 6cdc0ccc | 12333 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12334 | |
| 0c8d6e5c | 12335 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12336 | continue; |
| 12337 | ||
| 721956f4 | 12338 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12339 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12340 | if (symtab_hdr->sh_info == 0) |
| 12341 | continue; | |
| 12342 | ||
| 721956f4 AM |
12343 | /* Walk over each section attached to the input bfd. */ |
| 12344 | for (section = input_bfd->sections; | |
| 12345 | section != NULL; | |
| 12346 | section = section->next) | |
| 12347 | { | |
| 721956f4 | 12348 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12349 | |
| 12350 | /* If there aren't any relocs, then there's nothing more | |
| 12351 | to do. */ | |
| 12352 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12353 | || (section->flags & SEC_ALLOC) == 0 |
| 12354 | || (section->flags & SEC_LOAD) == 0 | |
| 12355 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12356 | || section->reloc_count == 0) |
| 12357 | continue; | |
| 12358 | ||
| 12359 | /* If this section is a link-once section that will be | |
| 12360 | discarded, then don't create any stubs. */ | |
| 12361 | if (section->output_section == NULL | |
| 927be08e | 12362 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12363 | continue; |
| 12364 | ||
| 1e2f5b6e AM |
12365 | /* Get the relocs. */ |
| 12366 | internal_relocs | |
| 4ce794b7 | 12367 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12368 | info->keep_memory); |
| 721956f4 | 12369 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12370 | goto error_ret_free_local; |
| 721956f4 AM |
12371 | |
| 12372 | /* Now examine each relocation. */ | |
| 12373 | irela = internal_relocs; | |
| 12374 | irelaend = irela + section->reloc_count; | |
| 12375 | for (; irela < irelaend; irela++) | |
| 12376 | { | |
| 4ce794b7 AM |
12377 | enum elf_ppc64_reloc_type r_type; |
| 12378 | unsigned int r_indx; | |
| 721956f4 AM |
12379 | enum ppc_stub_type stub_type; |
| 12380 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12381 | asection *sym_sec, *code_sec; |
| e054468f | 12382 | bfd_vma sym_value, code_value; |
| 721956f4 | 12383 | bfd_vma destination; |
| 6911b7dc | 12384 | unsigned long local_off; |
| 8843416a | 12385 | bfd_boolean ok_dest; |
| 721956f4 | 12386 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12387 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12388 | struct elf_link_hash_entry *h; |
| 12389 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12390 | char *stub_name; |
| 12391 | const asection *id_sec; | |
| 74f0fb50 | 12392 | struct _opd_sec_data *opd; |
| e054468f | 12393 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12394 | |
| 12395 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12396 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12397 | ||
| 4ce794b7 | 12398 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12399 | { |
| 12400 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12401 | goto error_ret_free_internal; |
| 721956f4 AM |
12402 | } |
| 12403 | ||
| 12404 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12405 | if (r_type != R_PPC64_REL24 |
| 12406 | && r_type != R_PPC64_REL14 | |
| 12407 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12408 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12409 | continue; |
| 12410 | ||
| 12411 | /* Now determine the call target, its name, value, | |
| 12412 | section. */ | |
| 411e1bfb AM |
12413 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12414 | r_indx, input_bfd)) | |
| 12415 | goto error_ret_free_internal; | |
| 12416 | hash = (struct ppc_link_hash_entry *) h; | |
| 12417 | ||
| 8843416a | 12418 | ok_dest = FALSE; |
| 8387904d | 12419 | fdh = NULL; |
| 7fe2b9a6 | 12420 | sym_value = 0; |
| 411e1bfb | 12421 | if (hash == NULL) |
| 721956f4 | 12422 | { |
| 411e1bfb | 12423 | sym_value = sym->st_value; |
| c27b8c2a AM |
12424 | if (sym_sec != NULL |
| 12425 | && sym_sec->output_section != NULL) | |
| 12426 | ok_dest = TRUE; | |
| 721956f4 | 12427 | } |
| 7fe2b9a6 AM |
12428 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12429 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12430 | { | |
| 12431 | sym_value = hash->elf.root.u.def.value; | |
| 12432 | if (sym_sec->output_section != NULL) | |
| 12433 | ok_dest = TRUE; | |
| 12434 | } | |
| 12435 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12436 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12437 | { |
| 99877b66 | 12438 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12439 | use the func descriptor sym instead if it is |
| 12440 | defined. */ | |
| ceb1f1ef | 12441 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12442 | && hash->oh != NULL) |
| 8387904d | 12443 | { |
| 8c5b4e52 | 12444 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12445 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12446 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12447 | { | |
| 12448 | sym_sec = fdh->elf.root.u.def.section; | |
| 12449 | sym_value = fdh->elf.root.u.def.value; | |
| 12450 | if (sym_sec->output_section != NULL) | |
| 12451 | ok_dest = TRUE; | |
| 12452 | } | |
| 99877b66 AM |
12453 | else |
| 12454 | fdh = NULL; | |
| 8387904d | 12455 | } |
| 7fe2b9a6 AM |
12456 | } |
| 12457 | else | |
| 12458 | { | |
| 12459 | bfd_set_error (bfd_error_bad_value); | |
| 12460 | goto error_ret_free_internal; | |
| 721956f4 AM |
12461 | } |
| 12462 | ||
| 8843416a | 12463 | destination = 0; |
| 6911b7dc | 12464 | local_off = 0; |
| 8843416a AM |
12465 | if (ok_dest) |
| 12466 | { | |
| 12467 | sym_value += irela->r_addend; | |
| 12468 | destination = (sym_value | |
| 12469 | + sym_sec->output_offset | |
| 12470 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12471 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12472 | ? hash->elf.other | |
| 12473 | : sym->st_other); | |
| 8843416a AM |
12474 | } |
| 12475 | ||
| 8387904d | 12476 | code_sec = sym_sec; |
| e054468f | 12477 | code_value = sym_value; |
| 74f0fb50 AM |
12478 | opd = get_opd_info (sym_sec); |
| 12479 | if (opd != NULL) | |
| 8387904d AM |
12480 | { |
| 12481 | bfd_vma dest; | |
| 12482 | ||
| 74f0fb50 | 12483 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12484 | { |
| 51aecdc5 | 12485 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12486 | if (adjust == -1) |
| 12487 | continue; | |
| e054468f | 12488 | code_value += adjust; |
| 8387904d AM |
12489 | sym_value += adjust; |
| 12490 | } | |
| 12491 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12492 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12493 | if (dest != (bfd_vma) -1) |
| 12494 | { | |
| 12495 | destination = dest; | |
| 12496 | if (fdh != NULL) | |
| 12497 | { | |
| 12498 | /* Fixup old ABI sym to point at code | |
| 12499 | entry. */ | |
| 99877b66 | 12500 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12501 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12502 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12503 | } |
| 12504 | } | |
| 12505 | } | |
| 12506 | ||
| 721956f4 | 12507 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12508 | plt_ent = NULL; |
| 721956f4 | 12509 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12510 | &plt_ent, destination, |
| 12511 | local_off); | |
| ad8e1ba5 AM |
12512 | |
| 12513 | if (stub_type != ppc_stub_plt_call) | |
| 12514 | { | |
| 12515 | /* Check whether we need a TOC adjusting stub. | |
| 12516 | Since the linker pastes together pieces from | |
| 12517 | different object files when creating the | |
| 12518 | _init and _fini functions, it may be that a | |
| 12519 | call to what looks like a local sym is in | |
| 12520 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12521 | if (code_sec != NULL |
| 12522 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12523 | && (htab->sec_info[code_sec->id].toc_off |
| 12524 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12525 | && (code_sec->has_toc_reloc |
| 12526 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12527 | stub_type = ppc_stub_long_branch_r2off; |
| 12528 | } | |
| 12529 | ||
| 721956f4 AM |
12530 | if (stub_type == ppc_stub_none) |
| 12531 | continue; | |
| 12532 | ||
| 411e1bfb AM |
12533 | /* __tls_get_addr calls might be eliminated. */ |
| 12534 | if (stub_type != ppc_stub_plt_call | |
| 12535 | && hash != NULL | |
| 8387904d AM |
12536 | && (hash == htab->tls_get_addr |
| 12537 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12538 | && section->has_tls_reloc |
| 12539 | && irela != internal_relocs) | |
| 12540 | { | |
| 12541 | /* Get tls info. */ | |
| f961d9dd | 12542 | unsigned char *tls_mask; |
| 411e1bfb | 12543 | |
| 3a71aa26 | 12544 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12545 | irela - 1, input_bfd)) |
| 12546 | goto error_ret_free_internal; | |
| e7b938ca | 12547 | if (*tls_mask != 0) |
| 411e1bfb AM |
12548 | continue; |
| 12549 | } | |
| 12550 | ||
| 3b421ab3 AM |
12551 | if (stub_type == ppc_stub_plt_call |
| 12552 | && irela + 1 < irelaend | |
| 12553 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12554 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12555 | { | |
| 12556 | if (!tocsave_find (htab, INSERT, | |
| 12557 | &local_syms, irela + 1, input_bfd)) | |
| 12558 | goto error_ret_free_internal; | |
| 12559 | } | |
| 12560 | else if (stub_type == ppc_stub_plt_call) | |
| 12561 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12562 | |
| 721956f4 | 12563 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12564 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12565 | |
| 12566 | /* Get the name of this stub. */ | |
| 12567 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12568 | if (!stub_name) | |
| 12569 | goto error_ret_free_internal; | |
| 12570 | ||
| 12571 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12572 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12573 | if (stub_entry != NULL) |
| 12574 | { | |
| 12575 | /* The proper stub has already been created. */ | |
| 12576 | free (stub_name); | |
| 794e51c0 AM |
12577 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12578 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12579 | continue; |
| 12580 | } | |
| 12581 | ||
| 25f53a85 | 12582 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12583 | if (stub_entry == NULL) |
| 12584 | { | |
| 12585 | free (stub_name); | |
| 6cdc0ccc AM |
12586 | error_ret_free_internal: |
| 12587 | if (elf_section_data (section)->relocs == NULL) | |
| 12588 | free (internal_relocs); | |
| 12589 | error_ret_free_local: | |
| 12590 | if (local_syms != NULL | |
| 12591 | && (symtab_hdr->contents | |
| 12592 | != (unsigned char *) local_syms)) | |
| 12593 | free (local_syms); | |
| b34976b6 | 12594 | return FALSE; |
| 721956f4 AM |
12595 | } |
| 12596 | ||
| ad8e1ba5 | 12597 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12598 | if (stub_type != ppc_stub_plt_call |
| 12599 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12600 | { |
| 12601 | stub_entry->target_value = code_value; | |
| 12602 | stub_entry->target_section = code_sec; | |
| 12603 | } | |
| 12604 | else | |
| 12605 | { | |
| 12606 | stub_entry->target_value = sym_value; | |
| 12607 | stub_entry->target_section = sym_sec; | |
| 12608 | } | |
| 721956f4 | 12609 | stub_entry->h = hash; |
| e054468f | 12610 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12611 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12612 | |
| 12613 | if (stub_entry->h != NULL) | |
| 12614 | htab->stub_globals += 1; | |
| 721956f4 AM |
12615 | } |
| 12616 | ||
| 12617 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12618 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12619 | free (internal_relocs); |
| 721956f4 | 12620 | } |
| 6cdc0ccc AM |
12621 | |
| 12622 | if (local_syms != NULL | |
| 12623 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12624 | { | |
| 12625 | if (!info->keep_memory) | |
| 12626 | free (local_syms); | |
| 12627 | else | |
| 12628 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12629 | } | |
| 721956f4 AM |
12630 | } |
| 12631 | ||
| 5c3dead3 | 12632 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12633 | stub sections. */ |
| e7d1c40c | 12634 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12635 | stub_sec != NULL; |
| 12636 | stub_sec = stub_sec->next) | |
| e717da7e | 12637 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12638 | { |
| ea3d7d1c AM |
12639 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12640 | || stub_sec->rawsize < stub_sec->size) | |
| 12641 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12642 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12643 | stub_sec->size = 0; |
| 12644 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12645 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12646 | } |
| eea6121a AM |
12647 | |
| 12648 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12649 | htab->brlt->reloc_count = 0; |
| 12650 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12651 | if (htab->relbrlt != NULL) |
| eea6121a | 12652 | htab->relbrlt->size = 0; |
| 721956f4 | 12653 | |
| 63bc6f6c | 12654 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12655 | |
| a4b6fadd AM |
12656 | for (group = htab->group; group != NULL; group = group->next) |
| 12657 | if (group->needs_save_res) | |
| 12658 | group->stub_sec->size += htab->sfpr->size; | |
| 12659 | ||
| 176a0d42 AM |
12660 | if (info->emitrelocations |
| 12661 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12662 | { | |
| 12663 | htab->glink->reloc_count = 1; | |
| 12664 | htab->glink->flags |= SEC_RELOC; | |
| 12665 | } | |
| 12666 | ||
| 58d180e8 AM |
12667 | if (htab->glink_eh_frame != NULL |
| 12668 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12669 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12670 | { |
| 4bbe044a | 12671 | size_t size = 0, align; |
| 58d180e8 | 12672 | |
| e7d1c40c | 12673 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12674 | stub_sec != NULL; |
| 12675 | stub_sec = stub_sec->next) | |
| 12676 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12677 | size += 24; |
| 58d180e8 AM |
12678 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12679 | size += 24; | |
| 12680 | if (size != 0) | |
| 12681 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12682 | align = 1; |
| 12683 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12684 | align -= 1; | |
| 12685 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12686 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12687 | htab->glink_eh_frame->size = size; | |
| 12688 | } | |
| 12689 | ||
| e7d1c40c AM |
12690 | if (htab->params->plt_stub_align != 0) |
| 12691 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12692 | stub_sec != NULL; |
| 12693 | stub_sec = stub_sec->next) | |
| 12694 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12695 | stub_sec->size = ((stub_sec->size |
| 12696 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 12697 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 12698 | |
| e7d1c40c | 12699 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12700 | stub_sec != NULL; |
| 12701 | stub_sec = stub_sec->next) | |
| 12702 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| c9301e31 AM |
12703 | && stub_sec->rawsize != stub_sec->size |
| 12704 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 12705 | || stub_sec->rawsize < stub_sec->size)) | |
| 5c3dead3 AM |
12706 | break; |
| 12707 | ||
| 58d180e8 AM |
12708 | if (stub_sec == NULL |
| 12709 | && (htab->glink_eh_frame == NULL | |
| 12710 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12711 | break; |
| 12712 | ||
| 721956f4 | 12713 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12714 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12715 | } |
| 12716 | ||
| da44f4e5 AM |
12717 | if (htab->glink_eh_frame != NULL |
| 12718 | && htab->glink_eh_frame->size != 0) | |
| 12719 | { | |
| 12720 | bfd_vma val; | |
| 12721 | bfd_byte *p, *last_fde; | |
| 12722 | size_t last_fde_len, size, align, pad; | |
| 12723 | asection *stub_sec; | |
| 12724 | ||
| 12725 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12726 | if (p == NULL) | |
| 12727 | return FALSE; | |
| 12728 | htab->glink_eh_frame->contents = p; | |
| 12729 | last_fde = p; | |
| 12730 | ||
| 12731 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12732 | /* CIE length (rewrite in case little-endian). */ | |
| 12733 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12734 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12735 | p += sizeof (glink_eh_frame_cie); | |
| 12736 | ||
| 12737 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12738 | stub_sec != NULL; | |
| 12739 | stub_sec = stub_sec->next) | |
| 12740 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12741 | { | |
| 12742 | last_fde = p; | |
| 12743 | last_fde_len = 20; | |
| 12744 | /* FDE length. */ | |
| 12745 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12746 | p += 4; | |
| 12747 | /* CIE pointer. */ | |
| 12748 | val = p - htab->glink_eh_frame->contents; | |
| 12749 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12750 | p += 4; | |
| 12751 | /* Offset to stub section, written later. */ | |
| 12752 | p += 4; | |
| 12753 | /* stub section size. */ | |
| 12754 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12755 | p += 4; | |
| 12756 | /* Augmentation. */ | |
| 12757 | p += 1; | |
| 12758 | /* Pad. */ | |
| 12759 | p += 7; | |
| 12760 | } | |
| 12761 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12762 | { | |
| 12763 | last_fde = p; | |
| 12764 | last_fde_len = 20; | |
| 12765 | /* FDE length. */ | |
| 12766 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12767 | p += 4; | |
| 12768 | /* CIE pointer. */ | |
| 12769 | val = p - htab->glink_eh_frame->contents; | |
| 12770 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12771 | p += 4; | |
| 12772 | /* Offset to .glink, written later. */ | |
| 12773 | p += 4; | |
| 12774 | /* .glink size. */ | |
| 12775 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12776 | p += 4; | |
| 12777 | /* Augmentation. */ | |
| 12778 | p += 1; | |
| 12779 | ||
| 12780 | *p++ = DW_CFA_advance_loc + 1; | |
| 12781 | *p++ = DW_CFA_register; | |
| 12782 | *p++ = 65; | |
| 9f08fa5c | 12783 | *p++ = htab->opd_abi ? 12 : 0; |
| da44f4e5 AM |
12784 | *p++ = DW_CFA_advance_loc + 4; |
| 12785 | *p++ = DW_CFA_restore_extended; | |
| 12786 | *p++ = 65; | |
| 12787 | } | |
| 12788 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12789 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12790 | zero padding will be seen as a terminator. */ | |
| 12791 | size = p - htab->glink_eh_frame->contents; | |
| 12792 | align = 1; | |
| 12793 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12794 | align -= 1; | |
| 12795 | pad = ((size + align) & ~align) - size; | |
| 12796 | htab->glink_eh_frame->size = size + pad; | |
| 12797 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12798 | } | |
| 12799 | ||
| d969d15f AM |
12800 | maybe_strip_output (info, htab->brlt); |
| 12801 | if (htab->glink_eh_frame != NULL) | |
| 12802 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12803 | |
| b34976b6 | 12804 | return TRUE; |
| 721956f4 AM |
12805 | } |
| 12806 | ||
| 12807 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12808 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12809 | |
| 805fc799 | 12810 | bfd_vma |
| 1c865ab2 | 12811 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12812 | { |
| 805fc799 | 12813 | asection *s; |
| a27e685f | 12814 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12815 | |
| 43417696 AM |
12816 | if (info != NULL) |
| 12817 | { | |
| 12818 | struct elf_link_hash_entry *h; | |
| 12819 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12820 | ||
| 12821 | if (is_elf_hash_table (htab) | |
| 12822 | && htab->hgot != NULL) | |
| 12823 | h = htab->hgot; | |
| 12824 | else | |
| 12825 | { | |
| 12826 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12827 | if (is_elf_hash_table (htab)) | |
| 12828 | htab->hgot = h; | |
| 12829 | } | |
| 12830 | if (h != NULL | |
| 12831 | && h->root.type == bfd_link_hash_defined | |
| 12832 | && !h->root.linker_def | |
| 12833 | && (!is_elf_hash_table (htab) | |
| 12834 | || h->def_regular)) | |
| 12835 | { | |
| 12836 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12837 | + h->root.u.def.section->output_offset | |
| 12838 | + h->root.u.def.section->output_section->vma); | |
| 12839 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12840 | return TOCstart; | |
| 12841 | } | |
| 12842 | } | |
| 12843 | ||
| 805fc799 AM |
12844 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12845 | order. The TOC starts where the first of these sections starts. */ | |
| 12846 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12847 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12848 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12849 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12850 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12851 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12852 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12853 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12854 | { |
| 12855 | /* This may happen for | |
| 12856 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12857 | .toc directive | |
| 12858 | o bad linker script | |
| 12859 | o --gc-sections and empty TOC sections | |
| 12860 | ||
| 12861 | FIXME: Warn user? */ | |
| 12862 | ||
| 12863 | /* Look for a likely section. We probably won't even be | |
| 12864 | using TOCstart. */ | |
| 12865 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12866 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12867 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12868 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12869 | break; | |
| 721956f4 | 12870 | if (s == NULL) |
| 805fc799 | 12871 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12872 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12873 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12874 | break; | |
| 721956f4 | 12875 | if (s == NULL) |
| 805fc799 | 12876 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12877 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12878 | == SEC_ALLOC) | |
| 805fc799 | 12879 | break; |
| 721956f4 | 12880 | if (s == NULL) |
| 805fc799 | 12881 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12882 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12883 | break; |
| 12884 | } | |
| 721956f4 | 12885 | |
| 805fc799 AM |
12886 | TOCstart = 0; |
| 12887 | if (s != NULL) | |
| 12888 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12889 | |
| a27e685f AM |
12890 | /* Force alignment. */ |
| 12891 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12892 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12893 | _bfd_set_gp_value (obfd, TOCstart); |
| 12894 | ||
| 810d4e75 | 12895 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12896 | { |
| 12897 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12898 | ||
| 810d4e75 AM |
12899 | if (htab != NULL) |
| 12900 | { | |
| 12901 | if (htab->elf.hgot != NULL) | |
| 12902 | { | |
| a27e685f | 12903 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12904 | htab->elf.hgot->root.u.def.section = s; |
| 12905 | } | |
| 12906 | } | |
| 12907 | else | |
| 1c865ab2 | 12908 | { |
| 810d4e75 AM |
12909 | struct bfd_link_hash_entry *bh = NULL; |
| 12910 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12911 | s, TOC_BASE_OFF - adjust, |
| 12912 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12913 | } |
| 12914 | } | |
| 805fc799 | 12915 | return TOCstart; |
| 721956f4 AM |
12916 | } |
| 12917 | ||
| a345bc8d AM |
12918 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12919 | write out any global entry stubs. */ | |
| 12920 | ||
| 12921 | static bfd_boolean | |
| 12922 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12923 | { | |
| 12924 | struct bfd_link_info *info; | |
| 12925 | struct ppc_link_hash_table *htab; | |
| 12926 | struct plt_entry *pent; | |
| 12927 | asection *s; | |
| 12928 | ||
| 12929 | if (h->root.type == bfd_link_hash_indirect) | |
| 12930 | return TRUE; | |
| 12931 | ||
| 12932 | if (!h->pointer_equality_needed) | |
| 12933 | return TRUE; | |
| 12934 | ||
| 12935 | if (h->def_regular) | |
| 12936 | return TRUE; | |
| 12937 | ||
| 12938 | info = inf; | |
| 12939 | htab = ppc_hash_table (info); | |
| 12940 | if (htab == NULL) | |
| 12941 | return FALSE; | |
| 12942 | ||
| 12943 | s = htab->glink; | |
| 12944 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12945 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12946 | && pent->addend == 0) | |
| 12947 | { | |
| 12948 | bfd_byte *p; | |
| 12949 | asection *plt; | |
| 12950 | bfd_vma off; | |
| 12951 | ||
| a345bc8d | 12952 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12953 | plt = htab->elf.splt; |
| a345bc8d AM |
12954 | if (!htab->elf.dynamic_sections_created |
| 12955 | || h->dynindx == -1) | |
| 33e44f2e | 12956 | plt = htab->elf.iplt; |
| a345bc8d AM |
12957 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12958 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12959 | ||
| 12960 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12961 | { | |
| 12962 | info->callbacks->einfo | |
| 12963 | (_("%P: linkage table error against `%T'\n"), | |
| 12964 | h->root.root.string); | |
| 12965 | bfd_set_error (bfd_error_bad_value); | |
| 12966 | htab->stub_error = TRUE; | |
| 12967 | } | |
| 12968 | ||
| 7341d5e2 AM |
12969 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12970 | if (htab->params->emit_stub_syms) | |
| 12971 | { | |
| 12972 | size_t len = strlen (h->root.root.string); | |
| 12973 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12974 | ||
| 12975 | if (name == NULL) | |
| 12976 | return FALSE; | |
| 12977 | ||
| 12978 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12979 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12980 | if (h == NULL) | |
| 12981 | return FALSE; | |
| 12982 | if (h->root.type == bfd_link_hash_new) | |
| 12983 | { | |
| 12984 | h->root.type = bfd_link_hash_defined; | |
| 12985 | h->root.u.def.section = s; | |
| 12986 | h->root.u.def.value = p - s->contents; | |
| 12987 | h->ref_regular = 1; | |
| 12988 | h->def_regular = 1; | |
| 12989 | h->ref_regular_nonweak = 1; | |
| 12990 | h->forced_local = 1; | |
| 12991 | h->non_elf = 0; | |
| 2ec55de3 | 12992 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12993 | } |
| 12994 | } | |
| 12995 | ||
| a345bc8d AM |
12996 | if (PPC_HA (off) != 0) |
| 12997 | { | |
| 12998 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12999 | p += 4; | |
| 13000 | } | |
| 13001 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13002 | p += 4; | |
| 13003 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13004 | p += 4; | |
| 13005 | bfd_put_32 (s->owner, BCTR, p); | |
| 13006 | break; | |
| 13007 | } | |
| 13008 | return TRUE; | |
| 13009 | } | |
| 13010 | ||
| 721956f4 AM |
13011 | /* Build all the stubs associated with the current output file. |
| 13012 | The stubs are kept in a hash table attached to the main linker | |
| 13013 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13014 | ||
| b34976b6 | 13015 | bfd_boolean |
| e7d1c40c | 13016 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13017 | char **stats) |
| 5d1634d7 AM |
13018 | { |
| 13019 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13020 | struct map_stub *group; |
| 721956f4 | 13021 | asection *stub_sec; |
| 5d1634d7 | 13022 | bfd_byte *p; |
| e717da7e | 13023 | int stub_sec_count = 0; |
| 5d1634d7 | 13024 | |
| 4dfe6ac6 NC |
13025 | if (htab == NULL) |
| 13026 | return FALSE; | |
| 13027 | ||
| eea6121a | 13028 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 13029 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13030 | stub_sec != NULL; |
| 13031 | stub_sec = stub_sec->next) | |
| eea6121a AM |
13032 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 13033 | && stub_sec->size != 0) | |
| e717da7e | 13034 | { |
| e7d1c40c | 13035 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13036 | if (stub_sec->contents == NULL) |
| 13037 | return FALSE; | |
| eea6121a | 13038 | stub_sec->size = 0; |
| e717da7e | 13039 | } |
| 5d1634d7 | 13040 | |
| 23eb7e01 | 13041 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13042 | { |
| 9f951329 | 13043 | unsigned int indx; |
| ad8e1ba5 | 13044 | bfd_vma plt0; |
| 9f951329 | 13045 | |
| 721956f4 | 13046 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13047 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13048 | { |
| 13049 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13050 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13051 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13052 | if (h == NULL) |
| 13053 | return FALSE; | |
| 13054 | if (h->root.type == bfd_link_hash_new) | |
| 13055 | { | |
| 13056 | h->root.type = bfd_link_hash_defined; | |
| 13057 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13058 | h->root.u.def.value = 8; |
| f5385ebf AM |
13059 | h->ref_regular = 1; |
| 13060 | h->def_regular = 1; | |
| 13061 | h->ref_regular_nonweak = 1; | |
| 13062 | h->forced_local = 1; | |
| 13063 | h->non_elf = 0; | |
| 2ec55de3 | 13064 | h->root.linker_def = 1; |
| 97b639ba AM |
13065 | } |
| 13066 | } | |
| 33e44f2e AM |
13067 | plt0 = (htab->elf.splt->output_section->vma |
| 13068 | + htab->elf.splt->output_offset | |
| 13069 | - 16); | |
| 176a0d42 AM |
13070 | if (info->emitrelocations) |
| 13071 | { | |
| 13072 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13073 | if (r == NULL) | |
| 13074 | return FALSE; | |
| 13075 | r->r_offset = (htab->glink->output_offset | |
| 13076 | + htab->glink->output_section->vma); | |
| 13077 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13078 | r->r_addend = plt0; | |
| 13079 | } | |
| 4ce794b7 | 13080 | p = htab->glink->contents; |
| 176a0d42 | 13081 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13082 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13083 | p += 8; | |
| b9e5796b AM |
13084 | if (htab->opd_abi) |
| 13085 | { | |
| 13086 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13087 | p += 4; | |
| 13088 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13089 | p += 4; | |
| 13090 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13091 | p += 4; | |
| 13092 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13093 | p += 4; | |
| 13094 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13095 | p += 4; | |
| 13096 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13097 | p += 4; | |
| 13098 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13099 | p += 4; | |
| 13100 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13101 | p += 4; | |
| 13102 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13103 | p += 4; | |
| 13104 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13105 | p += 4; | |
| 13106 | } | |
| 13107 | else | |
| 13108 | { | |
| 13109 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13110 | p += 4; | |
| 13111 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13112 | p += 4; | |
| 13113 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13114 | p += 4; | |
| 13115 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13116 | p += 4; | |
| 13117 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13118 | p += 4; | |
| 13119 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13120 | p += 4; | |
| 13121 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13122 | p += 4; | |
| 13123 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13124 | p += 4; | |
| 13125 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13126 | p += 4; | |
| 13127 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13128 | p += 4; | |
| 13129 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13130 | p += 4; | |
| 13131 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13132 | p += 4; | |
| 13133 | } | |
| 4ce794b7 | 13134 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 13135 | p += 4; |
| ee4bf8d2 AM |
13136 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 13137 | { | |
| 13138 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 13139 | p += 4; | |
| 13140 | } | |
| ad8e1ba5 | 13141 | |
| 9f951329 AM |
13142 | /* Build the .glink lazy link call stubs. */ |
| 13143 | indx = 0; | |
| a345bc8d | 13144 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 13145 | { |
| b9e5796b | 13146 | if (htab->opd_abi) |
| 9f951329 | 13147 | { |
| b9e5796b AM |
13148 | if (indx < 0x8000) |
| 13149 | { | |
| 13150 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13151 | p += 4; | |
| 13152 | } | |
| 13153 | else | |
| 13154 | { | |
| 13155 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13156 | p += 4; | |
| 13157 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13158 | p); | |
| 13159 | p += 4; | |
| 13160 | } | |
| 9f951329 | 13161 | } |
| 4ce794b7 | 13162 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13163 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13164 | indx++; |
| 9f951329 AM |
13165 | p += 4; |
| 13166 | } | |
| a345bc8d AM |
13167 | |
| 13168 | /* Build .glink global entry stubs. */ | |
| 13169 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13170 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13171 | } |
| 5d1634d7 | 13172 | |
| 7341d5e2 | 13173 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13174 | { |
| 4ce794b7 | 13175 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13176 | htab->brlt->size); |
| 4ce794b7 | 13177 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13178 | return FALSE; |
| 721956f4 | 13179 | } |
| ee75fd95 | 13180 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13181 | { |
| 13182 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13183 | htab->relbrlt->size); |
| 63bc6f6c AM |
13184 | if (htab->relbrlt->contents == NULL) |
| 13185 | return FALSE; | |
| 13186 | } | |
| 5d1634d7 | 13187 | |
| 721956f4 AM |
13188 | /* Build the stubs as directed by the stub hash table. */ |
| 13189 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13190 | |
| a4b6fadd AM |
13191 | for (group = htab->group; group != NULL; group = group->next) |
| 13192 | if (group->needs_save_res) | |
| 13193 | { | |
| 13194 | stub_sec = group->stub_sec; | |
| 13195 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13196 | htab->sfpr->size); | |
| 13197 | if (htab->params->emit_stub_syms) | |
| 13198 | { | |
| 13199 | unsigned int i; | |
| 13200 | ||
| 13201 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13202 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13203 | return FALSE; | |
| 13204 | } | |
| 13205 | stub_sec->size += htab->sfpr->size; | |
| 13206 | } | |
| 13207 | ||
| aa8a7074 AM |
13208 | if (htab->relbrlt != NULL) |
| 13209 | htab->relbrlt->reloc_count = 0; | |
| 13210 | ||
| e7d1c40c AM |
13211 | if (htab->params->plt_stub_align != 0) |
| 13212 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
13213 | stub_sec != NULL; |
| 13214 | stub_sec = stub_sec->next) | |
| 13215 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
13216 | stub_sec->size = ((stub_sec->size |
| 13217 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13218 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13219 | |
| e7d1c40c | 13220 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13221 | stub_sec != NULL; |
| 13222 | stub_sec = stub_sec->next) | |
| e717da7e AM |
13223 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 13224 | { | |
| 13225 | stub_sec_count += 1; | |
| c9301e31 AM |
13226 | if (stub_sec->rawsize != stub_sec->size |
| 13227 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13228 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13229 | break; |
| 13230 | } | |
| 5d1634d7 | 13231 | |
| da44f4e5 AM |
13232 | /* Note that the glink_eh_frame check here is not only testing that |
| 13233 | the generated size matched the calculated size but also that | |
| 13234 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 13235 | if (stub_sec != NULL |
| 58d180e8 AM |
13236 | || (htab->glink_eh_frame != NULL |
| 13237 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13238 | { |
| b34976b6 | 13239 | htab->stub_error = TRUE; |
| 8de848d8 | 13240 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13241 | } |
| 721956f4 | 13242 | |
| d2a300cf AM |
13243 | if (htab->stub_error) |
| 13244 | return FALSE; | |
| 13245 | ||
| 13246 | if (stats != NULL) | |
| 13247 | { | |
| 13248 | *stats = bfd_malloc (500); | |
| 13249 | if (*stats == NULL) | |
| 13250 | return FALSE; | |
| 13251 | ||
| ee75fd95 | 13252 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13253 | " branch %lu\n" |
| 13254 | " toc adjust %lu\n" | |
| 13255 | " long branch %lu\n" | |
| 13256 | " long toc adj %lu\n" | |
| 794e51c0 | 13257 | " plt call %lu\n" |
| 7341d5e2 AM |
13258 | " plt call toc %lu\n" |
| 13259 | " global entry %lu"), | |
| e717da7e | 13260 | stub_sec_count, |
| ee75fd95 | 13261 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13262 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13263 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13264 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13265 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13266 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13267 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13268 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13269 | } |
| 13270 | return TRUE; | |
| 5bd4f169 AM |
13271 | } |
| 13272 | ||
| 60124e18 AM |
13273 | /* What to do when ld finds relocations against symbols defined in |
| 13274 | discarded sections. */ | |
| 13275 | ||
| 13276 | static unsigned int | |
| 13277 | ppc64_elf_action_discarded (asection *sec) | |
| 13278 | { | |
| 13279 | if (strcmp (".opd", sec->name) == 0) | |
| 13280 | return 0; | |
| 13281 | ||
| 13282 | if (strcmp (".toc", sec->name) == 0) | |
| 13283 | return 0; | |
| 13284 | ||
| bce50a28 JJ |
13285 | if (strcmp (".toc1", sec->name) == 0) |
| 13286 | return 0; | |
| 13287 | ||
| 60124e18 AM |
13288 | return _bfd_elf_default_action_discarded (sec); |
| 13289 | } | |
| 13290 | ||
| 5bd4f169 AM |
13291 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13292 | to handle the relocations for a section. | |
| 13293 | ||
| 13294 | The relocs are always passed as Rela structures; if the section | |
| 13295 | actually uses Rel structures, the r_addend field will always be | |
| 13296 | zero. | |
| 13297 | ||
| 13298 | This function is responsible for adjust the section contents as | |
| 13299 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13300 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13301 | necessary. |
| 13302 | ||
| 13303 | This function does not have to worry about setting the reloc | |
| 13304 | address or the reloc symbol index. | |
| 13305 | ||
| 13306 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13307 | ||
| 13308 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13309 | corresponding to the st_shndx field of each local symbol. | |
| 13310 | ||
| 13311 | The global hash table entry for the global symbols can be found | |
| 13312 | via elf_sym_hashes (input_bfd). | |
| 13313 | ||
| 1049f94e | 13314 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13315 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13316 | going to be the section symbol corresponding to the output | |
| 13317 | section, which means that the addend must be adjusted | |
| 13318 | accordingly. */ | |
| 13319 | ||
| b34976b6 | 13320 | static bfd_boolean |
| 4ce794b7 AM |
13321 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13322 | struct bfd_link_info *info, | |
| 13323 | bfd *input_bfd, | |
| 13324 | asection *input_section, | |
| 13325 | bfd_byte *contents, | |
| 13326 | Elf_Internal_Rela *relocs, | |
| 13327 | Elf_Internal_Sym *local_syms, | |
| 13328 | asection **local_sections) | |
| 5bd4f169 | 13329 | { |
| 65f38f15 | 13330 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13331 | Elf_Internal_Shdr *symtab_hdr; |
| 13332 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13333 | Elf_Internal_Rela *rel; |
| c316a17c | 13334 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13335 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13336 | Elf_Internal_Rela outrel; |
| 13337 | bfd_byte *loc; | |
| 411e1bfb | 13338 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13339 | bfd_vma TOCstart; |
| b34976b6 AM |
13340 | bfd_boolean ret = TRUE; |
| 13341 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13342 | /* Assume 'at' branch hints. */ |
| 13343 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13344 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13345 | |
| 65f38f15 | 13346 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13347 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13348 | ppc_howto_init (); |
| 13349 | ||
| 65f38f15 | 13350 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13351 | if (htab == NULL) |
| 13352 | return FALSE; | |
| ee75fd95 AM |
13353 | |
| 13354 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13355 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13356 | return TRUE; |
| 13357 | ||
| 0c8d6e5c | 13358 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13359 | |
| 411e1bfb | 13360 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13361 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13362 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13363 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13364 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13365 | |
| c316a17c | 13366 | rel = wrel = relocs; |
| 5bd4f169 | 13367 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13368 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13369 | { |
| 04c9666a | 13370 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13371 | bfd_vma addend; |
| 5bd4f169 AM |
13372 | bfd_reloc_status_type r; |
| 13373 | Elf_Internal_Sym *sym; | |
| 13374 | asection *sec; | |
| 039b3fef AM |
13375 | struct elf_link_hash_entry *h_elf; |
| 13376 | struct ppc_link_hash_entry *h; | |
| 13377 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13378 | const char *sym_name; |
| 0d4792f7 | 13379 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13380 | bfd_vma toc_addend; |
| f961d9dd AM |
13381 | unsigned char tls_mask, tls_gd, tls_type; |
| 13382 | unsigned char sym_type; | |
| 5bd4f169 | 13383 | bfd_vma relocation; |
| b34976b6 AM |
13384 | bfd_boolean unresolved_reloc; |
| 13385 | bfd_boolean warned; | |
| bc30df16 | 13386 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13387 | unsigned int insn; |
| e11840f9 | 13388 | unsigned int mask; |
| 721956f4 AM |
13389 | struct ppc_stub_hash_entry *stub_entry; |
| 13390 | bfd_vma max_br_offset; | |
| 13391 | bfd_vma from; | |
| c316a17c | 13392 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13393 | reloc_howto_type *howto; |
| 13394 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13395 | |
| c316a17c AM |
13396 | again: |
| 13397 | orig_rel = *rel; | |
| 13398 | ||
| 4ce794b7 | 13399 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13400 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13401 | |
| 13402 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13403 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13404 | proper TOC base to use. */ | |
| 13405 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13406 | && wrel != relocs |
| 13407 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13408 | && is_opd) |
| c316a17c | 13409 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13410 | |
| 4ce794b7 AM |
13411 | sym = NULL; |
| 13412 | sec = NULL; | |
| 039b3fef | 13413 | h_elf = NULL; |
| 4ce794b7 | 13414 | sym_name = NULL; |
| b34976b6 AM |
13415 | unresolved_reloc = FALSE; |
| 13416 | warned = FALSE; | |
| 65f38f15 | 13417 | |
| 0b13192e | 13418 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13419 | { |
| 13420 | /* It's a local symbol. */ | |
| 74f0fb50 | 13421 | struct _opd_sec_data *opd; |
| 4025353c | 13422 | |
| 5bd4f169 AM |
13423 | sym = local_syms + r_symndx; |
| 13424 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13425 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13426 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13427 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13428 | opd = get_opd_info (sec); |
| 13429 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13430 | { |
| 51aecdc5 AM |
13431 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13432 | + rel->r_addend)]; | |
| 4025353c AM |
13433 | if (adjust == -1) |
| 13434 | relocation = 0; | |
| 13435 | else | |
| 4cc603a5 AM |
13436 | { |
| 13437 | /* If this is a relocation against the opd section sym | |
| 13438 | and we have edited .opd, adjust the reloc addend so | |
| 13439 | that ld -r and ld --emit-relocs output is correct. | |
| 13440 | If it is a reloc against some other .opd symbol, | |
| 13441 | then the symbol value will be adjusted later. */ | |
| 13442 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13443 | rel->r_addend += adjust; | |
| 13444 | else | |
| 13445 | relocation += adjust; | |
| 13446 | } | |
| 1e2f5b6e | 13447 | } |
| 5bd4f169 AM |
13448 | } |
| 13449 | else | |
| 13450 | { | |
| 62d887d4 L |
13451 | bfd_boolean ignored; |
| 13452 | ||
| b2a8e766 AM |
13453 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13454 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13455 | h_elf, sec, relocation, |
| 62d887d4 | 13456 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13457 | sym_name = h_elf->root.root.string; |
| 13458 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13459 | if (sec != NULL |
| 13460 | && sec->owner == output_bfd | |
| 13461 | && strcmp (sec->name, ".opd") == 0) | |
| 13462 | { | |
| 13463 | /* This is a symbol defined in a linker script. All | |
| 13464 | such are defined in output sections, even those | |
| 13465 | defined by simple assignment from a symbol defined in | |
| 13466 | an input section. Transfer the symbol to an | |
| 13467 | appropriate input .opd section, so that a branch to | |
| 13468 | this symbol will be mapped to the location specified | |
| 13469 | by the opd entry. */ | |
| 13470 | struct bfd_link_order *lo; | |
| 13471 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13472 | if (lo->type == bfd_indirect_link_order) | |
| 13473 | { | |
| 13474 | asection *isec = lo->u.indirect.section; | |
| 13475 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13476 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13477 | + isec->size)) | |
| 13478 | { | |
| 13479 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13480 | h_elf->root.u.def.section = isec; | |
| 13481 | sec = isec; | |
| 13482 | break; | |
| 13483 | } | |
| 13484 | } | |
| 13485 | } | |
| 5bd4f169 | 13486 | } |
| 039b3fef | 13487 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13488 | |
| dbaa2011 | 13489 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13490 | { |
| 13491 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13492 | input_bfd, input_section, | |
| 13493 | contents + rel->r_offset); | |
| 13494 | wrel->r_offset = rel->r_offset; | |
| 13495 | wrel->r_info = 0; | |
| 13496 | wrel->r_addend = 0; | |
| 13497 | ||
| 13498 | /* For ld -r, remove relocations in debug sections against | |
| 13499 | sections defined in discarded sections. Not done for | |
| 13500 | non-debug to preserve relocs in .eh_frame which the | |
| 13501 | eh_frame editing code expects to be present. */ | |
| 13502 | if (bfd_link_relocatable (info) | |
| 13503 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13504 | wrel--; | |
| 13505 | ||
| 13506 | continue; | |
| 13507 | } | |
| ab96bf03 | 13508 | |
| 0e1862bb | 13509 | if (bfd_link_relocatable (info)) |
| c316a17c | 13510 | goto copy_reloc; |
| ab96bf03 | 13511 | |
| f40da81b AM |
13512 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13513 | { | |
| 6f20ed8a | 13514 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13515 | sec = bfd_abs_section_ptr; |
| 13516 | unresolved_reloc = FALSE; | |
| 13517 | } | |
| 13518 | ||
| 951fd09b AM |
13519 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13520 | based on information we collected in tls_optimize. We edit | |
| 13521 | RELOCS so that --emit-relocs will output something sensible | |
| 13522 | for the final instruction stream. */ | |
| 13523 | tls_mask = 0; | |
| 13524 | tls_gd = 0; | |
| 0d4792f7 | 13525 | toc_symndx = 0; |
| 727fc41e AM |
13526 | if (h != NULL) |
| 13527 | tls_mask = h->tls_mask; | |
| 13528 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13529 | { |
| e054468f AM |
13530 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13531 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13532 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13533 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13534 | tls_mask = lgot_masks[r_symndx]; |
| 13535 | } | |
| 13536 | if (tls_mask == 0 | |
| 13537 | && (r_type == R_PPC64_TLS | |
| 13538 | || r_type == R_PPC64_TLSGD | |
| 13539 | || r_type == R_PPC64_TLSLD)) | |
| 13540 | { | |
| 13541 | /* Check for toc tls entries. */ | |
| f961d9dd | 13542 | unsigned char *toc_tls; |
| 0d4792f7 | 13543 | |
| 727fc41e AM |
13544 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13545 | &local_syms, rel, input_bfd)) | |
| 13546 | return FALSE; | |
| 0d4792f7 | 13547 | |
| 727fc41e AM |
13548 | if (toc_tls) |
| 13549 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13550 | } |
| 13551 | ||
| 13552 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13553 | relocs are used with non-tls syms. */ | |
| cf35638d | 13554 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13555 | && r_type != R_PPC64_NONE |
| 13556 | && (h == NULL | |
| 039b3fef AM |
13557 | || h->elf.root.type == bfd_link_hash_defined |
| 13558 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13559 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13560 | != (sym_type == STT_TLS | |
| 13561 | || (sym_type == STT_SECTION | |
| 13562 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13563 | { |
| 727fc41e AM |
13564 | if (tls_mask != 0 |
| 13565 | && (r_type == R_PPC64_TLS | |
| 13566 | || r_type == R_PPC64_TLSGD | |
| 13567 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13568 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13569 | ; | |
| 13570 | else | |
| 25f53a85 | 13571 | info->callbacks->einfo |
| 1d483afe | 13572 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13573 | /* xgettext:c-format */ |
| bc30df16 | 13574 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13575 | /* xgettext:c-format */ |
| bc30df16 | 13576 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13577 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13578 | ppc64_elf_howto_table[r_type]->name, |
| 13579 | sym_name); | |
| 411e1bfb AM |
13580 | } |
| 13581 | ||
| 13582 | /* Ensure reloc mapping code below stays sane. */ | |
| 13583 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13584 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13585 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13586 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13587 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13588 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13589 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13590 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13591 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13592 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13593 | abort (); | |
| 0d4792f7 | 13594 | |
| 411e1bfb AM |
13595 | switch (r_type) |
| 13596 | { | |
| 13597 | default: | |
| 411e1bfb AM |
13598 | break; |
| 13599 | ||
| ba761f19 | 13600 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13601 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13602 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13603 | abort (); | |
| 13604 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13605 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13606 | r_type = R_PPC64_TOC16_LO; |
| 13607 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13608 | break; | |
| 13609 | ||
| 411e1bfb AM |
13610 | case R_PPC64_TOC16: |
| 13611 | case R_PPC64_TOC16_LO: | |
| 13612 | case R_PPC64_TOC16_DS: | |
| 13613 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13614 | { |
| 13615 | /* Check for toc tls entries. */ | |
| f961d9dd | 13616 | unsigned char *toc_tls; |
| 951fd09b | 13617 | int retval; |
| 411e1bfb | 13618 | |
| 3a71aa26 AM |
13619 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13620 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13621 | if (retval == 0) |
| 411e1bfb AM |
13622 | return FALSE; |
| 13623 | ||
| 13624 | if (toc_tls) | |
| 13625 | { | |
| 951fd09b | 13626 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13627 | if (r_type == R_PPC64_TOC16_DS |
| 13628 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13629 | { |
| 13630 | if (tls_mask != 0 | |
| 13631 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13632 | goto toctprel; | |
| 13633 | } | |
| 411e1bfb | 13634 | else |
| 951fd09b AM |
13635 | { |
| 13636 | /* If we found a GD reloc pair, then we might be | |
| 13637 | doing a GD->IE transition. */ | |
| 13638 | if (retval == 2) | |
| 13639 | { | |
| 13640 | tls_gd = TLS_TPRELGD; | |
| 13641 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13642 | goto tls_ldgd_opt; |
| 951fd09b AM |
13643 | } |
| 13644 | else if (retval == 3) | |
| 13645 | { | |
| 13646 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13647 | goto tls_ldgd_opt; |
| 951fd09b AM |
13648 | } |
| 13649 | } | |
| 411e1bfb AM |
13650 | } |
| 13651 | } | |
| 13652 | break; | |
| 13653 | ||
| 9d6ded02 AM |
13654 | case R_PPC64_GOT_TPREL16_HI: |
| 13655 | case R_PPC64_GOT_TPREL16_HA: | |
| 13656 | if (tls_mask != 0 | |
| 13657 | && (tls_mask & TLS_TPREL) == 0) | |
| 13658 | { | |
| 13659 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13660 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13661 | r_type = R_PPC64_NONE; |
| 13662 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13663 | } | |
| 13664 | break; | |
| 13665 | ||
| 411e1bfb AM |
13666 | case R_PPC64_GOT_TPREL16_DS: |
| 13667 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13668 | if (tls_mask != 0 |
| 13669 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13670 | { |
| 81407a69 | 13671 | toctprel: |
| 95f0d0d2 | 13672 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13673 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13674 | insn &= 31 << 21; |
| 13675 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13676 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13677 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13678 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13679 | if (toc_symndx != 0) |
| 13680 | { | |
| 13681 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13682 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13683 | /* We changed the symbol. Start over in order to |
| 13684 | get h, sym, sec etc. right. */ | |
| c316a17c | 13685 | goto again; |
| 0d4792f7 AM |
13686 | } |
| 13687 | else | |
| 13688 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13689 | } |
| 13690 | break; | |
| 13691 | ||
| 13692 | case R_PPC64_TLS: | |
| 951fd09b AM |
13693 | if (tls_mask != 0 |
| 13694 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13695 | { |
| 95f0d0d2 | 13696 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13697 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13698 | if (insn == 0) | |
| 411e1bfb | 13699 | abort (); |
| 95f0d0d2 | 13700 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13701 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13702 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13703 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13704 | r_type = R_PPC64_TPREL16_LO; |
| 13705 | if (toc_symndx != 0) | |
| 13706 | { | |
| 13707 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13708 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13709 | /* We changed the symbol. Start over in order to |
| 13710 | get h, sym, sec etc. right. */ | |
| c316a17c | 13711 | goto again; |
| 0d4792f7 AM |
13712 | } |
| 13713 | else | |
| 13714 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13715 | } |
| 13716 | break; | |
| 13717 | ||
| 411e1bfb AM |
13718 | case R_PPC64_GOT_TLSGD16_HI: |
| 13719 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13720 | tls_gd = TLS_TPRELGD; |
| 13721 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13722 | goto tls_gdld_hi; | |
| 13723 | break; | |
| 13724 | ||
| 411e1bfb AM |
13725 | case R_PPC64_GOT_TLSLD16_HI: |
| 13726 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13727 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13728 | { |
| 951fd09b AM |
13729 | tls_gdld_hi: |
| 13730 | if ((tls_mask & tls_gd) != 0) | |
| 13731 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13732 | + R_PPC64_GOT_TPREL16_DS); | |
| 13733 | else | |
| 411e1bfb | 13734 | { |
| 4fe5ca5b | 13735 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13736 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13737 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13738 | } |
| 951fd09b | 13739 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13740 | } |
| 13741 | break; | |
| 13742 | ||
| 951fd09b AM |
13743 | case R_PPC64_GOT_TLSGD16: |
| 13744 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13745 | tls_gd = TLS_TPRELGD; | |
| 13746 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13747 | goto tls_ldgd_opt; |
| 951fd09b | 13748 | break; |
| 411e1bfb | 13749 | |
| 951fd09b AM |
13750 | case R_PPC64_GOT_TLSLD16: |
| 13751 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13752 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13753 | { | |
| 3a71aa26 | 13754 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13755 | bfd_vma offset; |
| 13756 | ||
| 13757 | tls_ldgd_opt: | |
| 727fc41e AM |
13758 | offset = (bfd_vma) -1; |
| 13759 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13760 | __tls_get_addr calls, we must trust that the call | |
| 13761 | stays with its arg setup insns, ie. that the next | |
| 13762 | reloc is the __tls_get_addr call associated with | |
| 13763 | the current reloc. Edit both insns. */ | |
| 13764 | if (input_section->has_tls_get_addr_call | |
| 13765 | && rel + 1 < relend | |
| 13766 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13767 | htab->tls_get_addr, | |
| 13768 | htab->tls_get_addr_fd)) | |
| 13769 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13770 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13771 | need to keep the destination reg. It may be | |
| 13772 | something other than the usual r3, and moved to r3 | |
| 13773 | before the call by intervening code. */ | |
| 95f0d0d2 | 13774 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13775 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13776 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13777 | { |
| 102890f0 | 13778 | /* IE */ |
| b86ac8e3 | 13779 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13780 | insn1 |= 58 << 26; /* ld */ |
| 13781 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13782 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13783 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13784 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13785 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13786 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13787 | else |
| 102890f0 AM |
13788 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13789 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13790 | } | |
| 13791 | else | |
| 13792 | { | |
| 13793 | /* LE */ | |
| b86ac8e3 AM |
13794 | insn1 &= 0x1f << 21; |
| 13795 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13796 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13797 | if (tls_gd == 0) | |
| 951fd09b | 13798 | { |
| 102890f0 | 13799 | /* Was an LD reloc. */ |
| 1d483afe AM |
13800 | if (toc_symndx) |
| 13801 | sec = local_sections[toc_symndx]; | |
| 13802 | for (r_symndx = 0; | |
| 13803 | r_symndx < symtab_hdr->sh_info; | |
| 13804 | r_symndx++) | |
| 13805 | if (local_sections[r_symndx] == sec) | |
| 13806 | break; | |
| 13807 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13808 | r_symndx = STN_UNDEF; |
| 102890f0 | 13809 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13810 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13811 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13812 | + sec->output_offset | |
| 13813 | + sec->output_section->vma); | |
| 951fd09b | 13814 | } |
| 102890f0 | 13815 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13816 | { |
| 13817 | r_symndx = toc_symndx; | |
| 13818 | rel->r_addend = toc_addend; | |
| 13819 | } | |
| 102890f0 AM |
13820 | r_type = R_PPC64_TPREL16_HA; |
| 13821 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13822 | if (offset != (bfd_vma) -1) |
| 13823 | { | |
| 13824 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13825 | R_PPC64_TPREL16_LO); | |
| 13826 | rel[1].r_offset = offset + d_offset; | |
| 13827 | rel[1].r_addend = rel->r_addend; | |
| 13828 | } | |
| 102890f0 | 13829 | } |
| 95f0d0d2 | 13830 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13831 | contents + rel->r_offset - d_offset); |
| 727fc41e AM |
13832 | if (offset != (bfd_vma) -1) |
| 13833 | { | |
| 95f0d0d2 | 13834 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
13835 | contents + offset + 4); |
| 13836 | if (insn3 == NOP | |
| 13837 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13838 | { | |
| 13839 | rel[1].r_offset += 4; | |
| 95f0d0d2 | 13840 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
13841 | insn2 = NOP; |
| 13842 | } | |
| 95f0d0d2 | 13843 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13844 | } |
| 13845 | if ((tls_mask & tls_gd) == 0 | |
| 13846 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13847 | { | |
| 13848 | /* We changed the symbol. Start over in order | |
| 13849 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13850 | goto again; |
| 727fc41e AM |
13851 | } |
| 13852 | } | |
| 13853 | break; | |
| 13854 | ||
| 13855 | case R_PPC64_TLSGD: | |
| 13856 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13857 | { | |
| 13858 | unsigned int insn2, insn3; | |
| 13859 | bfd_vma offset = rel->r_offset; | |
| 13860 | ||
| 13861 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13862 | { | |
| 13863 | /* IE */ | |
| 13864 | r_type = R_PPC64_NONE; | |
| 13865 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13866 | } | |
| 13867 | else | |
| 13868 | { | |
| 13869 | /* LE */ | |
| 13870 | if (toc_symndx != 0) | |
| 13871 | { | |
| 13872 | r_symndx = toc_symndx; | |
| 13873 | rel->r_addend = toc_addend; | |
| 13874 | } | |
| 13875 | r_type = R_PPC64_TPREL16_LO; | |
| 13876 | rel->r_offset = offset + d_offset; | |
| 13877 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13878 | } | |
| 13879 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13880 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13881 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13882 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13883 | insn3 = bfd_get_32 (input_bfd, |
| 3a71aa26 | 13884 | contents + offset + 4); |
| 102890f0 AM |
13885 | if (insn3 == NOP |
| 13886 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13887 | { | |
| 727fc41e | 13888 | rel->r_offset += 4; |
| 95f0d0d2 | 13889 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 3a71aa26 | 13890 | insn2 = NOP; |
| 102890f0 | 13891 | } |
| 95f0d0d2 | 13892 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13893 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13894 | goto again; |
| 411e1bfb | 13895 | } |
| 411e1bfb AM |
13896 | break; |
| 13897 | ||
| 727fc41e AM |
13898 | case R_PPC64_TLSLD: |
| 13899 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13900 | { | |
| 13901 | unsigned int insn2, insn3; | |
| 13902 | bfd_vma offset = rel->r_offset; | |
| 13903 | ||
| 13904 | if (toc_symndx) | |
| 13905 | sec = local_sections[toc_symndx]; | |
| 13906 | for (r_symndx = 0; | |
| 13907 | r_symndx < symtab_hdr->sh_info; | |
| 13908 | r_symndx++) | |
| 13909 | if (local_sections[r_symndx] == sec) | |
| 13910 | break; | |
| 13911 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13912 | r_symndx = STN_UNDEF; |
| 727fc41e | 13913 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13914 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13915 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13916 | + sec->output_offset | |
| 13917 | + sec->output_section->vma); | |
| 13918 | ||
| 13919 | r_type = R_PPC64_TPREL16_LO; | |
| 13920 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13921 | rel->r_offset = offset + d_offset; | |
| 13922 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13923 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13924 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13925 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13926 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
13927 | contents + offset + 4); |
| 13928 | if (insn3 == NOP | |
| 13929 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13930 | { | |
| 13931 | rel->r_offset += 4; | |
| 95f0d0d2 | 13932 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
13933 | insn2 = NOP; |
| 13934 | } | |
| 95f0d0d2 | 13935 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13936 | goto again; |
| 727fc41e AM |
13937 | } |
| 13938 | break; | |
| 13939 | ||
| 411e1bfb | 13940 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13941 | if (rel + 1 < relend |
| 13942 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13943 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13944 | { |
| 951fd09b AM |
13945 | if ((tls_mask & TLS_GD) == 0) |
| 13946 | { | |
| 13947 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13948 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13949 | r_type = R_PPC64_TPREL64; | |
| 13950 | else | |
| 13951 | { | |
| 4ce794b7 | 13952 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13953 | r_type = R_PPC64_NONE; |
| 13954 | } | |
| 13955 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13956 | } | |
| 13957 | } | |
| 13958 | else | |
| 13959 | { | |
| 13960 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13961 | { |
| 4ce794b7 | 13962 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13963 | r_type = R_PPC64_NONE; |
| 951fd09b | 13964 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13965 | } |
| 411e1bfb AM |
13966 | } |
| 13967 | break; | |
| 13968 | ||
| 13969 | case R_PPC64_TPREL64: | |
| 951fd09b | 13970 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13971 | { |
| 13972 | r_type = R_PPC64_NONE; | |
| 13973 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13974 | } | |
| 13975 | break; | |
| 52a82034 | 13976 | |
| 006589cf AM |
13977 | case R_PPC64_ENTRY: |
| 13978 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 13979 | if (!bfd_link_pic (info) | |
| 13980 | && !info->traditional_format | |
| 13981 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13982 | { | |
| 13983 | unsigned int insn1, insn2; | |
| 13984 | ||
| 13985 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13986 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 13987 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 13988 | && insn2 == ADD_R2_R2_R12) | |
| 13989 | { | |
| 95f0d0d2 | 13990 | bfd_put_32 (input_bfd, |
| 006589cf AM |
13991 | LIS_R2 + PPC_HA (relocation), |
| 13992 | contents + rel->r_offset); | |
| 95f0d0d2 | 13993 | bfd_put_32 (input_bfd, |
| 006589cf AM |
13994 | ADDI_R2_R2 + PPC_LO (relocation), |
| 13995 | contents + rel->r_offset + 4); | |
| 13996 | } | |
| 13997 | } | |
| 13998 | else | |
| 13999 | { | |
| 14000 | relocation -= (rel->r_offset | |
| 14001 | + input_section->output_offset | |
| 14002 | + input_section->output_section->vma); | |
| 14003 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14004 | { | |
| 14005 | unsigned int insn1, insn2; | |
| 14006 | ||
| 14007 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14008 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14009 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14010 | && insn2 == ADD_R2_R2_R12) | |
| 14011 | { | |
| 95f0d0d2 | 14012 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14013 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14014 | contents + rel->r_offset); | |
| 95f0d0d2 | 14015 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14016 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14017 | contents + rel->r_offset + 4); | |
| 14018 | } | |
| 14019 | } | |
| 14020 | } | |
| 14021 | break; | |
| 14022 | ||
| 52a82034 AM |
14023 | case R_PPC64_REL16_HA: |
| 14024 | /* If we are generating a non-PIC executable, edit | |
| 14025 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14026 | . addi 2,2,.TOC.-0b@l | |
| 14027 | used by ELFv2 global entry points to set up r2, to | |
| 14028 | . lis 2,.TOC.@ha | |
| 14029 | . addi 2,2,.TOC.@l | |
| 14030 | if .TOC. is in range. */ | |
| 0e1862bb | 14031 | if (!bfd_link_pic (info) |
| 810d4e75 | 14032 | && !info->traditional_format |
| 006589cf | 14033 | && !htab->opd_abi |
| 4f038ee5 | 14034 | && rel->r_addend == d_offset |
| 52a82034 AM |
14035 | && h != NULL && &h->elf == htab->elf.hgot |
| 14036 | && rel + 1 < relend | |
| 14037 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14038 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14039 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14040 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14041 | { | |
| 14042 | unsigned int insn1, insn2; | |
| 14043 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14044 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14045 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14046 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14047 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14048 | { |
| 14049 | r_type = R_PPC64_ADDR16_HA; | |
| 14050 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14051 | rel->r_addend -= d_offset; | |
| 14052 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14053 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14054 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14055 | } |
| 14056 | } | |
| 14057 | break; | |
| 411e1bfb AM |
14058 | } |
| 14059 | ||
| 14060 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14061 | insn = 0; |
| b25116a9 AM |
14062 | max_br_offset = 1 << 25; |
| 14063 | addend = rel->r_addend; | |
| bc30df16 | 14064 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14065 | switch (r_type) |
| 5bd4f169 AM |
14066 | { |
| 14067 | default: | |
| 65f38f15 | 14068 | break; |
| 5bd4f169 | 14069 | |
| 3b421ab3 AM |
14070 | case R_PPC64_TOCSAVE: |
| 14071 | if (relocation + addend == (rel->r_offset | |
| 14072 | + input_section->output_offset | |
| 14073 | + input_section->output_section->vma) | |
| 14074 | && tocsave_find (htab, NO_INSERT, | |
| 14075 | &local_syms, rel, input_bfd)) | |
| 14076 | { | |
| 14077 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14078 | if (insn == NOP | |
| 14079 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14080 | bfd_put_32 (input_bfd, |
| 14081 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14082 | contents + rel->r_offset); |
| 14083 | } | |
| 14084 | break; | |
| 14085 | ||
| 65f38f15 AM |
14086 | /* Branch taken prediction relocations. */ |
| 14087 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14088 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14089 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14090 | /* Fall through. */ |
| 65f38f15 | 14091 | |
| 86c76c7b | 14092 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14093 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14094 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14095 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14096 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14097 | /* Fall through. */ |
| 86c76c7b | 14098 | |
| b25116a9 AM |
14099 | case R_PPC64_REL14: |
| 14100 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14101 | /* Fall through. */ |
| 5bd4f169 | 14102 | |
| 65f38f15 | 14103 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14104 | /* Calls to functions with a different TOC, such as calls to |
| 14105 | shared objects, need to alter the TOC pointer. This is | |
| 14106 | done using a linkage stub. A REL24 branching to these | |
| 14107 | linkage stubs needs to be followed by a nop, as the nop | |
| 14108 | will be replaced with an instruction to restore the TOC | |
| 14109 | base pointer. */ | |
| 8387904d | 14110 | fdh = h; |
| b31867b6 AM |
14111 | if (h != NULL |
| 14112 | && h->oh != NULL | |
| 14113 | && h->oh->is_func_descriptor) | |
| 14114 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14115 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14116 | htab); | |
| 6abec6bc | 14117 | if (stub_entry != NULL |
| ad8e1ba5 | 14118 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14119 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14120 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14121 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14122 | { |
| b25116a9 | 14123 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14124 | |
| ba8ca3e7 AM |
14125 | /* All of these stubs will modify r2, so there must be a |
| 14126 | branch and link followed by a nop. The nop is | |
| 14127 | replaced by an insn to restore r2. */ | |
| eea6121a | 14128 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14129 | { |
| ba8ca3e7 AM |
14130 | unsigned long br; |
| 14131 | ||
| 14132 | br = bfd_get_32 (input_bfd, | |
| 14133 | contents + rel->r_offset); | |
| 14134 | if ((br & 1) != 0) | |
| 41bd81ab | 14135 | { |
| ba8ca3e7 AM |
14136 | unsigned long nop; |
| 14137 | ||
| 14138 | nop = bfd_get_32 (input_bfd, | |
| 14139 | contents + rel->r_offset + 4); | |
| 14140 | if (nop == NOP | |
| 14141 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14142 | { |
| ba8ca3e7 AM |
14143 | if (h != NULL |
| 14144 | && (h == htab->tls_get_addr_fd | |
| 14145 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14146 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14147 | { |
| 14148 | /* Special stub used, leave nop alone. */ | |
| 14149 | } | |
| 14150 | else | |
| a078d95a AM |
14151 | bfd_put_32 (input_bfd, |
| 14152 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14153 | contents + rel->r_offset + 4); |
| 14154 | can_plt_call = TRUE; | |
| a7f2871e | 14155 | } |
| 41bd81ab | 14156 | } |
| 5bd4f169 | 14157 | } |
| 721956f4 | 14158 | |
| ba8ca3e7 | 14159 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14160 | { |
| ba8ca3e7 AM |
14161 | const char *name = h->elf.root.root.string; |
| 14162 | ||
| 14163 | if (*name == '.') | |
| 14164 | ++name; | |
| 14165 | ||
| 14166 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14167 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14168 | { |
| ba8ca3e7 AM |
14169 | /* Allow crt1 branch to go via a toc adjusting |
| 14170 | stub. Other calls that never return could do | |
| 14171 | the same, if we could detect such. */ | |
| b25116a9 | 14172 | can_plt_call = TRUE; |
| 6ab189d5 | 14173 | } |
| ba8ca3e7 AM |
14174 | } |
| 14175 | ||
| 14176 | if (!can_plt_call) | |
| 14177 | { | |
| 14178 | /* g++ as of 20130507 emits self-calls without a | |
| 14179 | following nop. This is arguably wrong since we | |
| 14180 | have conflicting information. On the one hand a | |
| 14181 | global symbol and on the other a local call | |
| 14182 | sequence, but don't error for this special case. | |
| 14183 | It isn't possible to cheaply verify we have | |
| 14184 | exactly such a call. Allow all calls to the same | |
| 14185 | section. */ | |
| 14186 | asection *code_sec = sec; | |
| 14187 | ||
| 14188 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14189 | { |
| ba8ca3e7 AM |
14190 | bfd_vma off = (relocation + addend |
| 14191 | - sec->output_section->vma | |
| 14192 | - sec->output_offset); | |
| bc30df16 | 14193 | |
| ba8ca3e7 | 14194 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14195 | } |
| ba8ca3e7 AM |
14196 | if (code_sec == input_section) |
| 14197 | can_plt_call = TRUE; | |
| 14198 | } | |
| 14199 | ||
| 14200 | if (!can_plt_call) | |
| 14201 | { | |
| 4805fc55 AM |
14202 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14203 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14204 | info->callbacks->einfo | |
| 695344c0 | 14205 | /* xgettext:c-format */ |
| 4805fc55 AM |
14206 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " |
| 14207 | "recompile with -fPIC\n"), | |
| 14208 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14209 | else | |
| 14210 | info->callbacks->einfo | |
| 695344c0 | 14211 | /* xgettext:c-format */ |
| 4805fc55 AM |
14212 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " |
| 14213 | "(-mcmodel=small toc adjust stub)\n"), | |
| 14214 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14215 | |
| 14216 | bfd_set_error (bfd_error_bad_value); | |
| 14217 | ret = FALSE; | |
| 721956f4 AM |
14218 | } |
| 14219 | ||
| b25116a9 | 14220 | if (can_plt_call |
| 794e51c0 AM |
14221 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14222 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14223 | unresolved_reloc = FALSE; |
| 14224 | } | |
| 14225 | ||
| 6abec6bc AM |
14226 | if ((stub_entry == NULL |
| 14227 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14228 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14229 | && get_opd_info (sec) != NULL) |
| 14230 | { | |
| 14231 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14232 | bfd_vma off = (relocation + addend |
| 14233 | - sec->output_section->vma | |
| 14234 | - sec->output_offset); | |
| aef36ac1 | 14235 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14236 | if (dest != (bfd_vma) -1) |
| 14237 | { | |
| 14238 | relocation = dest; | |
| 14239 | addend = 0; | |
| bc30df16 | 14240 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14241 | } |
| 14242 | } | |
| 14243 | ||
| b25116a9 AM |
14244 | /* If the branch is out of reach we ought to have a long |
| 14245 | branch stub. */ | |
| 14246 | from = (rel->r_offset | |
| 14247 | + input_section->output_offset | |
| 14248 | + input_section->output_section->vma); | |
| 14249 | ||
| 6911b7dc AM |
14250 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14251 | ? fdh->elf.other | |
| 14252 | : sym->st_other); | |
| 14253 | ||
| 6abec6bc AM |
14254 | if (stub_entry != NULL |
| 14255 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14256 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14257 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14258 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14259 | || (relocation + addend - from + max_br_offset | |
| 14260 | < 2 * max_br_offset))) | |
| 14261 | /* Don't use the stub if this branch is in range. */ | |
| 14262 | stub_entry = NULL; | |
| b25116a9 AM |
14263 | |
| 14264 | if (stub_entry != NULL) | |
| 14265 | { | |
| 14266 | /* Munge up the value and addend so that we call the stub | |
| 14267 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14268 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14269 | ||
| 14270 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14271 | relocation += (stub_sec->output_offset | |
| 14272 | + stub_sec->output_section->vma | |
| 14273 | + stub_sec->size - htab->sfpr->size | |
| 14274 | - htab->sfpr->output_offset | |
| 14275 | - htab->sfpr->output_section->vma); | |
| 14276 | else | |
| 14277 | relocation = (stub_entry->stub_offset | |
| 14278 | + stub_sec->output_offset | |
| 14279 | + stub_sec->output_section->vma); | |
| b25116a9 | 14280 | addend = 0; |
| bc30df16 | 14281 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14282 | |
| 794e51c0 AM |
14283 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 14284 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14285 | && (ALWAYS_EMIT_R2SAVE | |
| 14286 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14287 | && rel + 1 < relend |
| 14288 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14289 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14290 | relocation += 4; | |
| b25116a9 AM |
14291 | } |
| 14292 | ||
| 14293 | if (insn != 0) | |
| 14294 | { | |
| 794e51c0 | 14295 | if (is_isa_v2) |
| 721956f4 | 14296 | { |
| b25116a9 AM |
14297 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14298 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14299 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14300 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14301 | insn |= 0x02 << 21; | |
| 14302 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14303 | insn |= 0x08 << 21; | |
| 14304 | else | |
| 14305 | break; | |
| 14306 | } | |
| 14307 | else | |
| 14308 | { | |
| 14309 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14310 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14311 | insn ^= 0x01 << 21; |
| 721956f4 | 14312 | } |
| b25116a9 | 14313 | |
| 95f0d0d2 | 14314 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14315 | } |
| e86ce104 | 14316 | |
| 06da1e8e AM |
14317 | /* NOP out calls to undefined weak functions. |
| 14318 | We can thus call a weak function without first | |
| 14319 | checking whether the function is defined. */ | |
| b25116a9 | 14320 | else if (h != NULL |
| 039b3fef | 14321 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14322 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14323 | && r_type == R_PPC64_REL24 |
| 14324 | && relocation == 0 | |
| 4cc603a5 | 14325 | && addend == 0) |
| e86ce104 | 14326 | { |
| 95f0d0d2 | 14327 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14328 | goto copy_reloc; |
| e86ce104 | 14329 | } |
| 65f38f15 AM |
14330 | break; |
| 14331 | } | |
| 5bd4f169 | 14332 | |
| 65f38f15 | 14333 | /* Set `addend'. */ |
| 411e1bfb | 14334 | tls_type = 0; |
| 65f38f15 AM |
14335 | switch (r_type) |
| 14336 | { | |
| 14337 | default: | |
| 25f53a85 | 14338 | info->callbacks->einfo |
| 695344c0 | 14339 | /* xgettext:c-format */ |
| bc30df16 | 14340 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14341 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14342 | |
| 65f38f15 | 14343 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14344 | ret = FALSE; |
| c316a17c | 14345 | goto copy_reloc; |
| 5bd4f169 | 14346 | |
| 65f38f15 | 14347 | case R_PPC64_NONE: |
| 411e1bfb | 14348 | case R_PPC64_TLS: |
| 727fc41e AM |
14349 | case R_PPC64_TLSGD: |
| 14350 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14351 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14352 | case R_PPC64_GNU_VTINHERIT: |
| 14353 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14354 | case R_PPC64_ENTRY: |
| c316a17c | 14355 | goto copy_reloc; |
| 5bd4f169 AM |
14356 | |
| 14357 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14358 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14359 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14360 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14361 | case R_PPC64_GOT_TLSGD16: |
| 14362 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14363 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14364 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14365 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14366 | goto dogot; |
| 14367 | ||
| 14368 | case R_PPC64_GOT_TLSLD16: | |
| 14369 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14370 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14371 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14372 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14373 | goto dogot; |
| 14374 | ||
| 14375 | case R_PPC64_GOT_TPREL16_DS: | |
| 14376 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14377 | case R_PPC64_GOT_TPREL16_HI: | |
| 14378 | case R_PPC64_GOT_TPREL16_HA: | |
| 14379 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14380 | goto dogot; | |
| 14381 | ||
| 14382 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14383 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14384 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14385 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14386 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14387 | goto dogot; | |
| 14388 | ||
| 65f38f15 AM |
14389 | case R_PPC64_GOT16: |
| 14390 | case R_PPC64_GOT16_LO: | |
| 14391 | case R_PPC64_GOT16_HI: | |
| 14392 | case R_PPC64_GOT16_HA: | |
| 14393 | case R_PPC64_GOT16_DS: | |
| 14394 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14395 | dogot: |
| 5bd4f169 AM |
14396 | { |
| 14397 | /* Relocation is to the entry for this symbol in the global | |
| 14398 | offset table. */ | |
| e717da7e | 14399 | asection *got; |
| d881513a | 14400 | bfd_vma *offp; |
| 5bd4f169 | 14401 | bfd_vma off; |
| d881513a | 14402 | unsigned long indx = 0; |
| 927be08e | 14403 | struct got_entry *ent; |
| 65f38f15 | 14404 | |
| d881513a AM |
14405 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14406 | && (h == NULL | |
| f5385ebf | 14407 | || !h->elf.def_dynamic)) |
| 927be08e | 14408 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14409 | else |
| 5bd4f169 | 14410 | { |
| d881513a AM |
14411 | if (h != NULL) |
| 14412 | { | |
| f0158f44 AM |
14413 | if (!htab->elf.dynamic_sections_created |
| 14414 | || h->elf.dynindx == -1 | |
| 14415 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 14416 | || (ELF_ST_VISIBILITY (h->elf.other) != STV_DEFAULT | |
| 14417 | && h->elf.root.type == bfd_link_hash_undefweak)) | |
| d881513a AM |
14418 | /* This is actually a static link, or it is a |
| 14419 | -Bsymbolic link and the symbol is defined | |
| 14420 | locally, or the symbol was forced to be local | |
| 14421 | because of a version file. */ | |
| 14422 | ; | |
| 14423 | else | |
| 14424 | { | |
| 039b3fef | 14425 | indx = h->elf.dynindx; |
| d881513a AM |
14426 | unresolved_reloc = FALSE; |
| 14427 | } | |
| 039b3fef | 14428 | ent = h->elf.got.glist; |
| d881513a | 14429 | } |
| 411e1bfb | 14430 | else |
| 5bd4f169 | 14431 | { |
| d881513a AM |
14432 | if (local_got_ents == NULL) |
| 14433 | abort (); | |
| 14434 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14435 | } |
| d881513a AM |
14436 | |
| 14437 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14438 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14439 | && ent->owner == input_bfd |
| d881513a AM |
14440 | && ent->tls_type == tls_type) |
| 14441 | break; | |
| 5bd4f169 | 14442 | } |
| 411e1bfb | 14443 | |
| 927be08e AM |
14444 | if (ent == NULL) |
| 14445 | abort (); | |
| 14446 | if (ent->is_indirect) | |
| 14447 | ent = ent->got.ent; | |
| 14448 | offp = &ent->got.offset; | |
| 14449 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14450 | if (got == NULL) |
| 14451 | abort (); | |
| 14452 | ||
| 411e1bfb AM |
14453 | /* The offset must always be a multiple of 8. We use the |
| 14454 | least significant bit to record whether we have already | |
| 14455 | processed this entry. */ | |
| d881513a | 14456 | off = *offp; |
| 411e1bfb AM |
14457 | if ((off & 1) != 0) |
| 14458 | off &= ~1; | |
| 5bd4f169 AM |
14459 | else |
| 14460 | { | |
| 411e1bfb AM |
14461 | /* Generate relocs for the dynamic linker, except in |
| 14462 | the case of TLSLD where we'll use one entry per | |
| 14463 | module. */ | |
| 25f23106 AM |
14464 | asection *relgot; |
| 14465 | bfd_boolean ifunc; | |
| e717da7e | 14466 | |
| d881513a | 14467 | *offp = off | 1; |
| 25f23106 AM |
14468 | relgot = NULL; |
| 14469 | ifunc = (h != NULL | |
| 14470 | ? h->elf.type == STT_GNU_IFUNC | |
| 14471 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14472 | if (ifunc) |
| 33e44f2e | 14473 | relgot = htab->elf.irelplt; |
| f0158f44 AM |
14474 | else if (indx != 0 |
| 14475 | || (bfd_link_pic (info) | |
| 14476 | && (h == NULL | |
| 14477 | || (ELF_ST_VISIBILITY (h->elf.other) | |
| 14478 | == STV_DEFAULT) | |
| 14479 | || h->elf.root.type != bfd_link_hash_undefweak | |
| 14480 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14481 | && !h->elf.def_dynamic)))) | |
| 19e08130 | 14482 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14483 | if (relgot != NULL) |
| 5bd4f169 | 14484 | { |
| e717da7e AM |
14485 | outrel.r_offset = (got->output_section->vma |
| 14486 | + got->output_offset | |
| 411e1bfb | 14487 | + off); |
| 4cc603a5 | 14488 | outrel.r_addend = addend; |
| d881513a | 14489 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14490 | { |
| 411e1bfb | 14491 | outrel.r_addend = 0; |
| e515b051 | 14492 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14493 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14494 | { | |
| e717da7e AM |
14495 | loc = relgot->contents; |
| 14496 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14497 | * sizeof (Elf64_External_Rela)); |
| 14498 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14499 | &outrel, loc); | |
| e515b051 | 14500 | outrel.r_offset += 8; |
| 4cc603a5 | 14501 | outrel.r_addend = addend; |
| d881513a AM |
14502 | outrel.r_info |
| 14503 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14504 | } |
| 411e1bfb | 14505 | } |
| 951fd09b | 14506 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14507 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14508 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14509 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14510 | else if (indx != 0) |
| 14511 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14512 | else | |
| 81407a69 | 14513 | { |
| 25f23106 AM |
14514 | if (ifunc) |
| 14515 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14516 | else | |
| 14517 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14518 | |
| 14519 | /* Write the .got section contents for the sake | |
| 14520 | of prelink. */ | |
| e717da7e | 14521 | loc = got->contents + off; |
| 23fbd6fa JJ |
14522 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14523 | loc); | |
| 81407a69 | 14524 | } |
| 81407a69 AM |
14525 | |
| 14526 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14527 | { |
| 14528 | outrel.r_addend += relocation; | |
| 14529 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14530 | { |
| 14531 | if (htab->elf.tls_sec == NULL) | |
| 14532 | outrel.r_addend = 0; | |
| 14533 | else | |
| 14534 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14535 | } | |
| e515b051 | 14536 | } |
| e717da7e AM |
14537 | loc = relgot->contents; |
| 14538 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14539 | * sizeof (Elf64_External_Rela)); |
| 14540 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14541 | } | |
| 14542 | ||
| ad8e1ba5 | 14543 | /* Init the .got section contents here if we're not |
| 81407a69 | 14544 | emitting a reloc. */ |
| d881513a | 14545 | else |
| 411e1bfb | 14546 | { |
| f0158f44 AM |
14547 | int tlsopt |
| 14548 | = (htab->params->tls_get_addr_opt | |
| 14549 | && htab->tls_get_addr_fd != NULL | |
| 14550 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 14551 | ||
| 4cc603a5 | 14552 | relocation += addend; |
| f0158f44 | 14553 | if (tls_type != 0) |
| 411e1bfb | 14554 | { |
| 989f9879 AM |
14555 | if (htab->elf.tls_sec == NULL) |
| 14556 | relocation = 0; | |
| 14557 | else | |
| 14558 | { | |
| f0158f44 AM |
14559 | if (tls_type & TLS_LD) |
| 14560 | relocation = 0; | |
| 14561 | else | |
| 14562 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14563 | if ((tls_type & TLS_TPREL) | |
| 14564 | || (tlsopt && !(tls_type & TLS_DTPREL))) | |
| 989f9879 AM |
14565 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14566 | } | |
| 5bd4f169 | 14567 | |
| f0158f44 | 14568 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14569 | { |
| 14570 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14571 | got->contents + off + 8); |
| f0158f44 | 14572 | relocation = !tlsopt; |
| 7b609f53 | 14573 | } |
| 411e1bfb AM |
14574 | } |
| 14575 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14576 | got->contents + off); |
| 5bd4f169 AM |
14577 | } |
| 14578 | } | |
| 14579 | ||
| 65f38f15 AM |
14580 | if (off >= (bfd_vma) -2) |
| 14581 | abort (); | |
| 14582 | ||
| bf102f86 | 14583 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14584 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14585 | } |
| 65f38f15 AM |
14586 | break; |
| 14587 | ||
| 14588 | case R_PPC64_PLT16_HA: | |
| 14589 | case R_PPC64_PLT16_HI: | |
| 14590 | case R_PPC64_PLT16_LO: | |
| 14591 | case R_PPC64_PLT32: | |
| 14592 | case R_PPC64_PLT64: | |
| 14593 | /* Relocation is to the entry for this symbol in the | |
| 14594 | procedure linkage table. */ | |
| cbf95972 AM |
14595 | { |
| 14596 | struct plt_entry **plt_list = NULL; | |
| 14597 | if (h != NULL) | |
| 14598 | plt_list = &h->elf.plt.plist; | |
| 14599 | else if (local_got_ents != NULL) | |
| 14600 | { | |
| 14601 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14602 | (local_got_ents + symtab_hdr->sh_info); | |
| 14603 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14604 | (local_plt + symtab_hdr->sh_info); | |
| 14605 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14606 | plt_list = local_plt + r_symndx; | |
| 14607 | } | |
| 14608 | if (plt_list) | |
| 14609 | { | |
| 14610 | struct plt_entry *ent; | |
| 65f38f15 | 14611 | |
| cbf95972 AM |
14612 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14613 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14614 | && ent->addend == orig_rel.r_addend) | |
| 14615 | { | |
| 14616 | asection *plt; | |
| 14617 | ||
| 14618 | plt = htab->elf.splt; | |
| 14619 | if (!htab->elf.dynamic_sections_created | |
| 14620 | || h == NULL | |
| 14621 | || h->elf.dynindx == -1) | |
| 14622 | plt = htab->elf.iplt; | |
| 14623 | relocation = (plt->output_section->vma | |
| 14624 | + plt->output_offset | |
| 14625 | + ent->plt.offset); | |
| 14626 | addend = 0; | |
| 14627 | unresolved_reloc = FALSE; | |
| 14628 | break; | |
| 14629 | } | |
| 14630 | } | |
| 14631 | } | |
| 65f38f15 | 14632 | break; |
| 5bd4f169 | 14633 | |
| 0b13192e AM |
14634 | case R_PPC64_TOC: |
| 14635 | /* Relocation value is TOC base. */ | |
| 14636 | relocation = TOCstart; | |
| cf35638d | 14637 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14638 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14639 | else if (unresolved_reloc) |
| 14640 | ; | |
| 6f20ed8a AM |
14641 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14642 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14643 | else |
| 14644 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14645 | goto dodyn; |
| 0b13192e | 14646 | |
| 5bd4f169 AM |
14647 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14648 | which is the address of the start of the TOC plus 0x8000. | |
| 14649 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14650 | in this order. */ | |
| 65f38f15 AM |
14651 | case R_PPC64_TOC16: |
| 14652 | case R_PPC64_TOC16_LO: | |
| 14653 | case R_PPC64_TOC16_HI: | |
| 14654 | case R_PPC64_TOC16_DS: | |
| 14655 | case R_PPC64_TOC16_LO_DS: | |
| 14656 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14657 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14658 | break; |
| 14659 | ||
| 14660 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14661 | case R_PPC64_SECTOFF: |
| 14662 | case R_PPC64_SECTOFF_LO: | |
| 14663 | case R_PPC64_SECTOFF_HI: | |
| 14664 | case R_PPC64_SECTOFF_DS: | |
| 14665 | case R_PPC64_SECTOFF_LO_DS: | |
| 14666 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14667 | if (sec != NULL) |
| 65f38f15 | 14668 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14669 | break; |
| 14670 | ||
| 25f23106 AM |
14671 | case R_PPC64_REL16: |
| 14672 | case R_PPC64_REL16_LO: | |
| 14673 | case R_PPC64_REL16_HI: | |
| 14674 | case R_PPC64_REL16_HA: | |
| a680de9a | 14675 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14676 | break; |
| 14677 | ||
| 721956f4 AM |
14678 | case R_PPC64_REL14: |
| 14679 | case R_PPC64_REL14_BRNTAKEN: | |
| 14680 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14681 | case R_PPC64_REL24: |
| 14682 | break; | |
| 14683 | ||
| 411e1bfb AM |
14684 | case R_PPC64_TPREL16: |
| 14685 | case R_PPC64_TPREL16_LO: | |
| 14686 | case R_PPC64_TPREL16_HI: | |
| 14687 | case R_PPC64_TPREL16_HA: | |
| 14688 | case R_PPC64_TPREL16_DS: | |
| 14689 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14690 | case R_PPC64_TPREL16_HIGH: |
| 14691 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14692 | case R_PPC64_TPREL16_HIGHER: |
| 14693 | case R_PPC64_TPREL16_HIGHERA: | |
| 14694 | case R_PPC64_TPREL16_HIGHEST: | |
| 14695 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14696 | if (h != NULL |
| 14697 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14698 | && h->elf.dynindx == -1) | |
| 14699 | { | |
| 14700 | /* Make this relocation against an undefined weak symbol | |
| 14701 | resolve to zero. This is really just a tweak, since | |
| 14702 | code using weak externs ought to check that they are | |
| 14703 | defined before using them. */ | |
| 14704 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14705 | ||
| 95f0d0d2 | 14706 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14707 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14708 | if (insn != 0) | |
| 95f0d0d2 | 14709 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14710 | break; |
| 14711 | } | |
| 989f9879 AM |
14712 | if (htab->elf.tls_sec != NULL) |
| 14713 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 0e1862bb | 14714 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
14715 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14716 | libs as they will result in DT_TEXTREL being set, but | |
| 14717 | support them anyway. */ | |
| 14718 | goto dodyn; | |
| 14719 | break; | |
| 14720 | ||
| 14721 | case R_PPC64_DTPREL16: | |
| 14722 | case R_PPC64_DTPREL16_LO: | |
| 14723 | case R_PPC64_DTPREL16_HI: | |
| 14724 | case R_PPC64_DTPREL16_HA: | |
| 14725 | case R_PPC64_DTPREL16_DS: | |
| 14726 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14727 | case R_PPC64_DTPREL16_HIGH: |
| 14728 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14729 | case R_PPC64_DTPREL16_HIGHER: |
| 14730 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14731 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14732 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14733 | if (htab->elf.tls_sec != NULL) |
| 14734 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14735 | break; |
| 14736 | ||
| 45965137 AM |
14737 | case R_PPC64_ADDR64_LOCAL: |
| 14738 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14739 | ? h->elf.other | |
| 14740 | : sym->st_other); | |
| 14741 | break; | |
| 14742 | ||
| e515b051 AM |
14743 | case R_PPC64_DTPMOD64: |
| 14744 | relocation = 1; | |
| 14745 | addend = 0; | |
| 14746 | goto dodyn; | |
| 14747 | ||
| 411e1bfb | 14748 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14749 | if (htab->elf.tls_sec != NULL) |
| 14750 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14751 | goto dodyn; |
| 14752 | ||
| 14753 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14754 | if (htab->elf.tls_sec != NULL) |
| 14755 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14756 | /* Fall through. */ |
| 411e1bfb | 14757 | |
| 65f38f15 AM |
14758 | /* Relocations that may need to be propagated if this is a |
| 14759 | dynamic object. */ | |
| 04c9666a | 14760 | case R_PPC64_REL30: |
| 65f38f15 AM |
14761 | case R_PPC64_REL32: |
| 14762 | case R_PPC64_REL64: | |
| 14763 | case R_PPC64_ADDR14: | |
| 14764 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14765 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14766 | case R_PPC64_ADDR16: | |
| 14767 | case R_PPC64_ADDR16_DS: | |
| 14768 | case R_PPC64_ADDR16_HA: | |
| 14769 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14770 | case R_PPC64_ADDR16_HIGH: |
| 14771 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14772 | case R_PPC64_ADDR16_HIGHER: |
| 14773 | case R_PPC64_ADDR16_HIGHERA: | |
| 14774 | case R_PPC64_ADDR16_HIGHEST: | |
| 14775 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14776 | case R_PPC64_ADDR16_LO: | |
| 14777 | case R_PPC64_ADDR16_LO_DS: | |
| 14778 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14779 | case R_PPC64_ADDR32: |
| 14780 | case R_PPC64_ADDR64: | |
| 14781 | case R_PPC64_UADDR16: | |
| 14782 | case R_PPC64_UADDR32: | |
| 14783 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14784 | dodyn: |
| 5d1634d7 | 14785 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14786 | break; |
| 14787 | ||
| 41bd81ab AM |
14788 | if (NO_OPD_RELOCS && is_opd) |
| 14789 | break; | |
| 14790 | ||
| 8a9e8e72 AM |
14791 | if (bfd_link_pic (info) |
| 14792 | ? ((h != NULL && pc_dynrelocs (h)) | |
| 14793 | || must_be_dyn_reloc (info, r_type)) | |
| 14794 | : (h != NULL | |
| 14795 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14796 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14797 | { |
| b34976b6 | 14798 | bfd_boolean skip, relocate; |
| 65f38f15 | 14799 | asection *sreloc; |
| 1cf1f670 | 14800 | bfd_vma out_off; |
| 65f38f15 AM |
14801 | |
| 14802 | /* When generating a dynamic object, these relocations | |
| 14803 | are copied into the output file to be resolved at run | |
| 14804 | time. */ | |
| 14805 | ||
| b34976b6 AM |
14806 | skip = FALSE; |
| 14807 | relocate = FALSE; | |
| 65f38f15 | 14808 | |
| 1cf1f670 AM |
14809 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14810 | input_section, rel->r_offset); | |
| 14811 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14812 | skip = TRUE; |
| 1cf1f670 | 14813 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14814 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14815 | out_off += (input_section->output_section->vma |
| 14816 | + input_section->output_offset); | |
| 14817 | outrel.r_offset = out_off; | |
| 411e1bfb | 14818 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14819 | |
| 1cf1f670 AM |
14820 | /* Optimize unaligned reloc use. */ |
| 14821 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14822 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14823 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14824 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14825 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14826 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14827 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14828 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14829 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14830 | ||
| 65f38f15 | 14831 | if (skip) |
| 0bb2d96a | 14832 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14833 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14834 | && !is_opd |
| 14835 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14836 | { |
| 14837 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14838 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14839 | } | |
| 65f38f15 AM |
14840 | else |
| 14841 | { | |
| 41bd81ab AM |
14842 | /* This symbol is local, or marked to become local, |
| 14843 | or this is an opd section reloc which must point | |
| 14844 | at a local function. */ | |
| 65f38f15 | 14845 | outrel.r_addend += relocation; |
| e86ce104 | 14846 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14847 | { |
| 3fad3c7c | 14848 | if (is_opd && h != NULL) |
| afbe61cf AM |
14849 | { |
| 14850 | /* Lie about opd entries. This case occurs | |
| 14851 | when building shared libraries and we | |
| 14852 | reference a function in another shared | |
| 3fad3c7c AM |
14853 | lib. The same thing happens for a weak |
| 14854 | definition in an application that's | |
| 14855 | overridden by a strong definition in a | |
| 14856 | shared lib. (I believe this is a generic | |
| 14857 | bug in binutils handling of weak syms.) | |
| 14858 | In these cases we won't use the opd | |
| 1e2f5b6e | 14859 | entry in this lib. */ |
| b34976b6 | 14860 | unresolved_reloc = FALSE; |
| afbe61cf | 14861 | } |
| 25f23106 AM |
14862 | if (!is_opd |
| 14863 | && r_type == R_PPC64_ADDR64 | |
| 14864 | && (h != NULL | |
| 14865 | ? h->elf.type == STT_GNU_IFUNC | |
| 14866 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14867 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14868 | else | |
| 14869 | { | |
| 14870 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14871 | |
| 25f23106 AM |
14872 | /* We need to relocate .opd contents for ld.so. |
| 14873 | Prelink also wants simple and consistent rules | |
| 14874 | for relocs. This make all RELATIVE relocs have | |
| 14875 | *r_offset equal to r_addend. */ | |
| 14876 | relocate = TRUE; | |
| 14877 | } | |
| 65f38f15 AM |
14878 | } |
| 14879 | else | |
| 14880 | { | |
| 14881 | long indx = 0; | |
| 14882 | ||
| 25f23106 AM |
14883 | if (h != NULL |
| 14884 | ? h->elf.type == STT_GNU_IFUNC | |
| 14885 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14886 | { | |
| 25f53a85 | 14887 | info->callbacks->einfo |
| 695344c0 | 14888 | /* xgettext:c-format */ |
| bc30df16 AM |
14889 | (_("%P: %H: %s for indirect " |
| 14890 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14891 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14892 | ppc64_elf_howto_table[r_type]->name, |
| 14893 | sym_name); | |
| 14894 | ret = FALSE; | |
| 14895 | } | |
| cf35638d | 14896 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14897 | ; |
| 14898 | else if (sec == NULL || sec->owner == NULL) | |
| 14899 | { | |
| 14900 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14901 | return FALSE; |
| 65f38f15 AM |
14902 | } |
| 14903 | else | |
| 14904 | { | |
| 14905 | asection *osec; | |
| 14906 | ||
| 14907 | osec = sec->output_section; | |
| 14908 | indx = elf_section_data (osec)->dynindx; | |
| 14909 | ||
| 74541ad4 AM |
14910 | if (indx == 0) |
| 14911 | { | |
| 14912 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14913 | && htab->elf.data_index_section != NULL) | |
| 14914 | osec = htab->elf.data_index_section; | |
| 14915 | else | |
| 14916 | osec = htab->elf.text_index_section; | |
| 14917 | indx = elf_section_data (osec)->dynindx; | |
| 14918 | } | |
| 14919 | BFD_ASSERT (indx != 0); | |
| 14920 | ||
| 65f38f15 AM |
14921 | /* We are turning this relocation into one |
| 14922 | against a section symbol, so subtract out | |
| 14923 | the output section's address but not the | |
| 14924 | offset of the input section in the output | |
| 14925 | section. */ | |
| 14926 | outrel.r_addend -= osec->vma; | |
| 14927 | } | |
| 14928 | ||
| 14929 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14930 | } | |
| 14931 | } | |
| 14932 | ||
| 14933 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14934 | if (h != NULL |
| 14935 | ? h->elf.type == STT_GNU_IFUNC | |
| 14936 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14937 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14938 | if (sreloc == NULL) |
| 14939 | abort (); | |
| 14940 | ||
| dfbb6ac9 AM |
14941 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14942 | >= sreloc->size) | |
| 14943 | abort (); | |
| 947216bf AM |
14944 | loc = sreloc->contents; |
| 14945 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14946 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14947 | ||
| 14948 | /* If this reloc is against an external symbol, it will | |
| 14949 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14950 | anything now. However, for the sake of prelink ensure |
| 14951 | that the section contents are a known value. */ | |
| 65f38f15 | 14952 | if (! relocate) |
| 81407a69 AM |
14953 | { |
| 14954 | unresolved_reloc = FALSE; | |
| 14955 | /* The value chosen here is quite arbitrary as ld.so | |
| 14956 | ignores section contents except for the special | |
| 14957 | case of .opd where the contents might be accessed | |
| 14958 | before relocation. Choose zero, as that won't | |
| 14959 | cause reloc overflow. */ | |
| 14960 | relocation = 0; | |
| 14961 | addend = 0; | |
| 14962 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14963 | to improve backward compatibility with older | |
| 14964 | versions of ld. */ | |
| 14965 | if (r_type == R_PPC64_ADDR64) | |
| 14966 | addend = outrel.r_addend; | |
| 14967 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14968 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 14969 | addend = outrel.r_offset; |
| 81407a69 | 14970 | } |
| 65f38f15 | 14971 | } |
| f0158f44 AM |
14972 | else if (r_type == R_PPC64_DTPMOD64 |
| 14973 | && htab->params->tls_get_addr_opt | |
| 14974 | && htab->tls_get_addr_fd != NULL | |
| 14975 | && htab->tls_get_addr_fd->elf.plt.plist != NULL) | |
| 14976 | { | |
| 14977 | /* Set up for __tls_get_addr_opt stub, when this entry | |
| 14978 | does not have dynamic relocs. */ | |
| 14979 | relocation = 0; | |
| 14980 | /* Set up the next word for local dynamic. If it turns | |
| 14981 | out to be global dynamic, the reloc will overwrite | |
| 14982 | this value. */ | |
| 14983 | if (rel->r_offset + 16 <= input_section->size) | |
| 14984 | bfd_put_64 (input_bfd, DTP_OFFSET - TP_OFFSET, | |
| 14985 | contents + rel->r_offset + 8); | |
| 14986 | } | |
| 14987 | else if (r_type == R_PPC64_DTPREL64 | |
| 14988 | && htab->params->tls_get_addr_opt | |
| 14989 | && htab->tls_get_addr_fd != NULL | |
| 14990 | && htab->tls_get_addr_fd->elf.plt.plist != NULL | |
| 14991 | && rel > relocs | |
| 14992 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 14993 | && rel[-1].r_offset + 8 == rel->r_offset) | |
| 14994 | { | |
| 14995 | /* __tls_get_addr_opt stub value. */ | |
| 14996 | addend += DTP_OFFSET - TP_OFFSET; | |
| 14997 | } | |
| 5bd4f169 AM |
14998 | break; |
| 14999 | ||
| 65f38f15 AM |
15000 | case R_PPC64_COPY: |
| 15001 | case R_PPC64_GLOB_DAT: | |
| 15002 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15003 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15004 | case R_PPC64_RELATIVE: |
| 15005 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15006 | files. */ | |
| ae9a127f | 15007 | /* Fall through. */ |
| 65f38f15 AM |
15008 | |
| 15009 | case R_PPC64_PLTGOT16: | |
| 15010 | case R_PPC64_PLTGOT16_DS: | |
| 15011 | case R_PPC64_PLTGOT16_HA: | |
| 15012 | case R_PPC64_PLTGOT16_HI: | |
| 15013 | case R_PPC64_PLTGOT16_LO: | |
| 15014 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15015 | case R_PPC64_PLTREL32: | |
| 15016 | case R_PPC64_PLTREL64: | |
| 15017 | /* These ones haven't been implemented yet. */ | |
| 15018 | ||
| 25f53a85 | 15019 | info->callbacks->einfo |
| 695344c0 | 15020 | /* xgettext:c-format */ |
| bc30df16 | 15021 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 15022 | input_bfd, |
| 4ce794b7 | 15023 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15024 | |
| 15025 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15026 | ret = FALSE; |
| c316a17c | 15027 | goto copy_reloc; |
| 65f38f15 | 15028 | } |
| 5bd4f169 | 15029 | |
| 67f0cbdb AM |
15030 | /* Multi-instruction sequences that access the TOC can be |
| 15031 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 15032 | to nop; addi rb,r2,x; */ | |
| 15033 | switch (r_type) | |
| 15034 | { | |
| 15035 | default: | |
| 15036 | break; | |
| 15037 | ||
| 15038 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15039 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15040 | case R_PPC64_GOT_TPREL16_HI: | |
| 15041 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15042 | case R_PPC64_GOT16_HI: | |
| 15043 | case R_PPC64_TOC16_HI: | |
| 15044 | /* These relocs would only be useful if building up an | |
| 15045 | offset to later add to r2, perhaps in an indexed | |
| 15046 | addressing mode instruction. Don't try to optimize. | |
| 15047 | Unfortunately, the possibility of someone building up an | |
| 15048 | offset like this or even with the HA relocs, means that | |
| 15049 | we need to check the high insn when optimizing the low | |
| 15050 | insn. */ | |
| 15051 | break; | |
| 15052 | ||
| 15053 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15054 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15055 | case R_PPC64_GOT_TPREL16_HA: | |
| 15056 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15057 | case R_PPC64_GOT16_HA: | |
| 15058 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15059 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15060 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15061 | { |
| 15062 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15063 | bfd_put_32 (input_bfd, NOP, p); | |
| 15064 | } | |
| 67f0cbdb AM |
15065 | break; |
| 15066 | ||
| 15067 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15068 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15069 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15070 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15071 | case R_PPC64_GOT16_LO: | |
| 15072 | case R_PPC64_GOT16_LO_DS: | |
| 15073 | case R_PPC64_TOC16_LO: | |
| 15074 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15075 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15076 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15077 | { |
| 15078 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15079 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15080 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15081 | { | |
| 15082 | /* Transform addic to addi when we change reg. */ | |
| 15083 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15084 | insn |= (14u << 26) | (2 << 16); | |
| 15085 | } | |
| 15086 | else | |
| 67f0cbdb | 15087 | { |
| 98528052 AM |
15088 | insn &= ~(0x1f << 16); |
| 15089 | insn |= 2 << 16; | |
| 67f0cbdb | 15090 | } |
| 560c8763 | 15091 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15092 | } |
| 15093 | break; | |
| 15094 | } | |
| 15095 | ||
| 65f38f15 | 15096 | /* Do any further special processing. */ |
| b80eed39 | 15097 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
15098 | switch (r_type) |
| 15099 | { | |
| 15100 | default: | |
| 15101 | break; | |
| 15102 | ||
| 25f23106 | 15103 | case R_PPC64_REL16_HA: |
| a680de9a | 15104 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15105 | case R_PPC64_ADDR16_HA: |
| 15106 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15107 | case R_PPC64_ADDR16_HIGHERA: |
| 15108 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15109 | case R_PPC64_TOC16_HA: |
| 15110 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15111 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15112 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15113 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15114 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15115 | case R_PPC64_DTPREL16_HA: |
| 15116 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15117 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15118 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15119 | /* It's just possible that this symbol is a weak symbol |
| 15120 | that's not actually defined anywhere. In that case, | |
| 15121 | 'sec' would be NULL, and we should leave the symbol | |
| 15122 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15123 | if (sec == NULL) |
| 15124 | break; | |
| 1a0670f3 | 15125 | /* Fall through. */ |
| 5c5f6e17 AM |
15126 | |
| 15127 | case R_PPC64_GOT16_HA: | |
| 15128 | case R_PPC64_PLTGOT16_HA: | |
| 15129 | case R_PPC64_PLT16_HA: | |
| 15130 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15131 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15132 | case R_PPC64_GOT_TPREL16_HA: | |
| 15133 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15134 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15135 | Bits 0:15 are not used. */ | |
| 15136 | addend += 0x8000; | |
| 65f38f15 AM |
15137 | break; |
| 15138 | ||
| 15139 | case R_PPC64_ADDR16_DS: | |
| 15140 | case R_PPC64_ADDR16_LO_DS: | |
| 15141 | case R_PPC64_GOT16_DS: | |
| 15142 | case R_PPC64_GOT16_LO_DS: | |
| 15143 | case R_PPC64_PLT16_LO_DS: | |
| 15144 | case R_PPC64_SECTOFF_DS: | |
| 15145 | case R_PPC64_SECTOFF_LO_DS: | |
| 15146 | case R_PPC64_TOC16_DS: | |
| 15147 | case R_PPC64_TOC16_LO_DS: | |
| 15148 | case R_PPC64_PLTGOT16_DS: | |
| 15149 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15150 | case R_PPC64_GOT_TPREL16_DS: |
| 15151 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15152 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15153 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15154 | case R_PPC64_TPREL16_DS: | |
| 15155 | case R_PPC64_TPREL16_LO_DS: | |
| 15156 | case R_PPC64_DTPREL16_DS: | |
| 15157 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15158 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15159 | mask = 3; | |
| a680de9a PB |
15160 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15161 | the value must be a multiple of 16. This is somewhat of | |
| 15162 | a hack, but the "correct" way to do this by defining _DQ | |
| 15163 | forms of all the _DS relocs bloats all reloc switches in | |
| 15164 | this file. It doesn't make much sense to use these | |
| 15165 | relocs in data, so testing the insn should be safe. */ | |
| 15166 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15167 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15168 | mask = 15; |
| a680de9a PB |
15169 | relocation += addend; |
| 15170 | addend = insn & (mask ^ 3); | |
| 15171 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15172 | { |
| a680de9a | 15173 | relocation ^= relocation & mask; |
| 25f53a85 | 15174 | info->callbacks->einfo |
| 695344c0 | 15175 | /* xgettext:c-format */ |
| 8de848d8 | 15176 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15177 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15178 | howto->name, |
| adadcc0c | 15179 | mask + 1); |
| 65f38f15 | 15180 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15181 | ret = FALSE; |
| c316a17c | 15182 | goto copy_reloc; |
| 65f38f15 AM |
15183 | } |
| 15184 | break; | |
| 5bd4f169 AM |
15185 | } |
| 15186 | ||
| 239e1f3a AM |
15187 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15188 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15189 | not process them. */ | |
| 65f38f15 | 15190 | if (unresolved_reloc |
| 239e1f3a | 15191 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15192 | && h->elf.def_dynamic) |
| 15193 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15194 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15195 | { |
| 25f53a85 | 15196 | info->callbacks->einfo |
| 695344c0 | 15197 | /* xgettext:c-format */ |
| bc30df16 | 15198 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15199 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15200 | howto->name, |
| 039b3fef | 15201 | h->elf.root.root.string); |
| b34976b6 | 15202 | ret = FALSE; |
| 9c07fe7c | 15203 | } |
| 5bd4f169 | 15204 | |
| b80eed39 AM |
15205 | /* 16-bit fields in insns mostly have signed values, but a |
| 15206 | few insns have 16-bit unsigned values. Really, we should | |
| 15207 | have different reloc types. */ | |
| 15208 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15209 | && howto->dst_mask == 0xffff | |
| 15210 | && (input_section->flags & SEC_CODE) != 0) | |
| 15211 | { | |
| 15212 | enum complain_overflow complain = complain_overflow_signed; | |
| 15213 | ||
| 15214 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15215 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15216 | complain = complain_overflow_bitfield; | |
| 15217 | else if (howto->rightshift == 0 | |
| 15218 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15219 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15220 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15221 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15222 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15223 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15224 | complain = complain_overflow_unsigned; |
| 15225 | if (howto->complain_on_overflow != complain) | |
| 15226 | { | |
| 15227 | alt_howto = *howto; | |
| 15228 | alt_howto.complain_on_overflow = complain; | |
| 15229 | howto = &alt_howto; | |
| 15230 | } | |
| 15231 | } | |
| 15232 | ||
| a680de9a PB |
15233 | if (r_type == R_PPC64_REL16DX_HA) |
| 15234 | { | |
| 15235 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15236 | if (rel->r_offset + 4 > input_section->size) | |
| 15237 | r = bfd_reloc_outofrange; | |
| 15238 | else | |
| 15239 | { | |
| 15240 | relocation += addend; | |
| 15241 | relocation -= (rel->r_offset | |
| 15242 | + input_section->output_offset | |
| 15243 | + input_section->output_section->vma); | |
| 15244 | relocation = (bfd_signed_vma) relocation >> 16; | |
| 15245 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 15246 | insn &= ~0x1fffc1; | |
| 15247 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
| 15248 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
| 15249 | r = bfd_reloc_ok; | |
| 15250 | if (relocation + 0x8000 > 0xffff) | |
| 15251 | r = bfd_reloc_overflow; | |
| 15252 | } | |
| 15253 | } | |
| 15254 | else | |
| 15255 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15256 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15257 | |
| ef60b7ff | 15258 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15259 | { |
| bc30df16 | 15260 | char *more_info = NULL; |
| b80eed39 | 15261 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15262 | |
| 15263 | if (reloc_dest != DEST_NORMAL) | |
| 15264 | { | |
| 15265 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15266 | if (more_info != NULL) | |
| 15267 | { | |
| 15268 | strcpy (more_info, reloc_name); | |
| 15269 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15270 | ? " (OPD)" : " (stub)")); | |
| 15271 | reloc_name = more_info; | |
| 15272 | } | |
| 15273 | } | |
| 15274 | ||
| cd27b276 | 15275 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15276 | { |
| 8131c122 AM |
15277 | /* On code like "if (foo) foo();" don't report overflow |
| 15278 | on a branch to zero when foo is undefined. */ | |
| 15279 | if (!warned | |
| 15280 | && (reloc_dest == DEST_STUB | |
| 15281 | || !(h != NULL | |
| 15282 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15283 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15284 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15285 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15286 | sym_name, reloc_name, | |
| 15287 | orig_rel.r_addend, | |
| 15288 | input_bfd, input_section, | |
| 15289 | rel->r_offset); | |
| ef60b7ff AM |
15290 | } |
| 15291 | else | |
| 15292 | { | |
| 25f53a85 | 15293 | info->callbacks->einfo |
| 695344c0 | 15294 | /* xgettext:c-format */ |
| bc30df16 | 15295 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 15296 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15297 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15298 | ret = FALSE; |
| ef60b7ff | 15299 | } |
| bc30df16 AM |
15300 | if (more_info != NULL) |
| 15301 | free (more_info); | |
| 5bd4f169 | 15302 | } |
| c316a17c AM |
15303 | copy_reloc: |
| 15304 | if (wrel != rel) | |
| 15305 | *wrel = *rel; | |
| 15306 | } | |
| 15307 | ||
| 15308 | if (wrel != rel) | |
| 15309 | { | |
| 15310 | Elf_Internal_Shdr *rel_hdr; | |
| 15311 | size_t deleted = rel - wrel; | |
| 15312 | ||
| 15313 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15314 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15315 | if (rel_hdr->sh_size == 0) | |
| 15316 | { | |
| 15317 | /* It is too late to remove an empty reloc section. Leave | |
| 15318 | one NONE reloc. | |
| 15319 | ??? What is wrong with an empty section??? */ | |
| 15320 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15321 | deleted -= 1; | |
| 15322 | } | |
| 15323 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15324 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15325 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15326 | } |
| 15327 | ||
| 645ea6a9 AM |
15328 | /* If we're emitting relocations, then shortly after this function |
| 15329 | returns, reloc offsets and addends for this section will be | |
| 15330 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15331 | file rather than the input. Save a copy of the relocs for |
| 15332 | opd_entry_value. */ | |
| 0e1862bb | 15333 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15334 | { |
| 15335 | bfd_size_type amt; | |
| 15336 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15337 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15338 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15339 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15340 | if (rel == NULL) |
| 15341 | return FALSE; | |
| 15342 | memcpy (rel, relocs, amt); | |
| 15343 | } | |
| 5bd4f169 AM |
15344 | return ret; |
| 15345 | } | |
| 15346 | ||
| 754021d0 AM |
15347 | /* Adjust the value of any local symbols in opd sections. */ |
| 15348 | ||
| 6e0b88f1 | 15349 | static int |
| 754021d0 AM |
15350 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15351 | const char *name ATTRIBUTE_UNUSED, | |
| 15352 | Elf_Internal_Sym *elfsym, | |
| 15353 | asection *input_sec, | |
| 15354 | struct elf_link_hash_entry *h) | |
| 15355 | { | |
| 74f0fb50 AM |
15356 | struct _opd_sec_data *opd; |
| 15357 | long adjust; | |
| 754021d0 AM |
15358 | bfd_vma value; |
| 15359 | ||
| 4025353c | 15360 | if (h != NULL) |
| 6e0b88f1 | 15361 | return 1; |
| 4025353c | 15362 | |
| 74f0fb50 AM |
15363 | opd = get_opd_info (input_sec); |
| 15364 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15365 | return 1; |
| 754021d0 AM |
15366 | |
| 15367 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15368 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15369 | value -= input_sec->output_section->vma; |
| 15370 | ||
| 51aecdc5 | 15371 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15372 | if (adjust == -1) |
| 6e0b88f1 AM |
15373 | return 2; |
| 15374 | ||
| 15375 | elfsym->st_value += adjust; | |
| 15376 | return 1; | |
| 754021d0 AM |
15377 | } |
| 15378 | ||
| 5bd4f169 AM |
15379 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15380 | dynamic sections here. */ | |
| 15381 | ||
| b34976b6 | 15382 | static bfd_boolean |
| 4ce794b7 AM |
15383 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15384 | struct bfd_link_info *info, | |
| 15385 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 15386 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 15387 | { |
| 65f38f15 | 15388 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15389 | struct plt_entry *ent; |
| 15390 | Elf_Internal_Rela rela; | |
| 15391 | bfd_byte *loc; | |
| 5bd4f169 | 15392 | |
| 65f38f15 | 15393 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15394 | if (htab == NULL) |
| 15395 | return FALSE; | |
| 5bd4f169 | 15396 | |
| 8387904d AM |
15397 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15398 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15399 | { | |
| 15400 | /* This symbol has an entry in the procedure linkage | |
| 15401 | table. Set it up. */ | |
| e054468f AM |
15402 | if (!htab->elf.dynamic_sections_created |
| 15403 | || h->dynindx == -1) | |
| 15404 | { | |
| 15405 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15406 | && h->def_regular | |
| 15407 | && (h->root.type == bfd_link_hash_defined | |
| 15408 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15409 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15410 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15411 | + ent->plt.offset); |
| ee67d69a AM |
15412 | if (htab->opd_abi) |
| 15413 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15414 | else | |
| 15415 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15416 | rela.r_addend = (h->root.u.def.value |
| 15417 | + h->root.u.def.section->output_offset | |
| 15418 | + h->root.u.def.section->output_section->vma | |
| 15419 | + ent->addend); | |
| 33e44f2e AM |
15420 | loc = (htab->elf.irelplt->contents |
| 15421 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15422 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
15423 | } |
| 15424 | else | |
| 15425 | { | |
| 33e44f2e AM |
15426 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15427 | + htab->elf.splt->output_offset | |
| 25f23106 | 15428 | + ent->plt.offset); |
| e054468f AM |
15429 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15430 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15431 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15432 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15433 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 15434 | } |
| 8387904d | 15435 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15436 | |
| 15437 | if (!htab->opd_abi) | |
| 15438 | { | |
| 15439 | if (!h->def_regular) | |
| 15440 | { | |
| 15441 | /* Mark the symbol as undefined, rather than as | |
| 15442 | defined in glink. Leave the value if there were | |
| 15443 | any relocations where pointer equality matters | |
| 15444 | (this is a clue for the dynamic linker, to make | |
| 15445 | function pointer comparisons work between an | |
| 15446 | application and shared library), otherwise set it | |
| 15447 | to zero. */ | |
| 15448 | sym->st_shndx = SHN_UNDEF; | |
| 15449 | if (!h->pointer_equality_needed) | |
| 15450 | sym->st_value = 0; | |
| 15451 | else if (!h->ref_regular_nonweak) | |
| 15452 | { | |
| 15453 | /* This breaks function pointer comparisons, but | |
| 15454 | that is better than breaking tests for a NULL | |
| 15455 | function pointer. */ | |
| 15456 | sym->st_value = 0; | |
| 15457 | } | |
| 15458 | } | |
| 15459 | } | |
| 8387904d | 15460 | } |
| 5bd4f169 | 15461 | |
| f5385ebf | 15462 | if (h->needs_copy) |
| 5bd4f169 | 15463 | { |
| 65f38f15 | 15464 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15465 | asection *srel; |
| 5bd4f169 | 15466 | |
| 65f38f15 AM |
15467 | if (h->dynindx == -1 |
| 15468 | || (h->root.type != bfd_link_hash_defined | |
| 15469 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15470 | || htab->elf.srelbss == NULL |
| 15471 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15472 | abort (); |
| 5bd4f169 AM |
15473 | |
| 15474 | rela.r_offset = (h->root.u.def.value | |
| 15475 | + h->root.u.def.section->output_section->vma | |
| 15476 | + h->root.u.def.section->output_offset); | |
| 15477 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15478 | rela.r_addend = 0; | |
| 5474d94f AM |
15479 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 15480 | srel = htab->elf.sreldynrelro; | |
| 15481 | else | |
| 15482 | srel = htab->elf.srelbss; | |
| 15483 | loc = srel->contents; | |
| 15484 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15485 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15486 | } |
| 15487 | ||
| b34976b6 | 15488 | return TRUE; |
| 5bd4f169 AM |
15489 | } |
| 15490 | ||
| 65f38f15 AM |
15491 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15492 | dynamic linker, before writing them out. */ | |
| 15493 | ||
| 15494 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15495 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15496 | const asection *rel_sec, | |
| 15497 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15498 | { |
| 04c9666a | 15499 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15500 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15501 | ||
| 33e44f2e | 15502 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15503 | return reloc_class_ifunc; |
| a33d1f77 | 15504 | |
| 4ce794b7 | 15505 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15506 | switch (r_type) |
| 65f38f15 AM |
15507 | { |
| 15508 | case R_PPC64_RELATIVE: | |
| 15509 | return reloc_class_relative; | |
| 15510 | case R_PPC64_JMP_SLOT: | |
| 15511 | return reloc_class_plt; | |
| 15512 | case R_PPC64_COPY: | |
| 15513 | return reloc_class_copy; | |
| 15514 | default: | |
| 15515 | return reloc_class_normal; | |
| 15516 | } | |
| 15517 | } | |
| 15518 | ||
| 5bd4f169 AM |
15519 | /* Finish up the dynamic sections. */ |
| 15520 | ||
| b34976b6 | 15521 | static bfd_boolean |
| 4ce794b7 AM |
15522 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15523 | struct bfd_link_info *info) | |
| 5bd4f169 | 15524 | { |
| 65f38f15 AM |
15525 | struct ppc_link_hash_table *htab; |
| 15526 | bfd *dynobj; | |
| 5bd4f169 | 15527 | asection *sdyn; |
| 5bd4f169 | 15528 | |
| 65f38f15 | 15529 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15530 | if (htab == NULL) |
| 15531 | return FALSE; | |
| 15532 | ||
| 65f38f15 | 15533 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15534 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15535 | |
| 65f38f15 | 15536 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15537 | { |
| 5bd4f169 AM |
15538 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15539 | ||
| 33e44f2e | 15540 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15541 | abort (); |
| 5bd4f169 AM |
15542 | |
| 15543 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15544 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15545 | for (; dyncon < dynconend; dyncon++) |
| 15546 | { | |
| 15547 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15548 | asection *s; |
| 5bd4f169 AM |
15549 | |
| 15550 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15551 | ||
| 15552 | switch (dyn.d_tag) | |
| 15553 | { | |
| 65f38f15 AM |
15554 | default: |
| 15555 | continue; | |
| 5bd4f169 | 15556 | |
| 5d1634d7 | 15557 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15558 | s = htab->glink; |
| 6348e046 | 15559 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15560 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15561 | of glink rather than the first entry point, which is | |
| 15562 | what ld.so needs, and now have a bigger stub to | |
| 15563 | support automatic multiple TOCs. */ | |
| b9e5796b | 15564 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15565 | break; |
| 15566 | ||
| 19397422 AM |
15567 | case DT_PPC64_OPD: |
| 15568 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15569 | if (s == NULL) |
| 15570 | continue; | |
| 15571 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15572 | break; |
| 15573 | ||
| e8910a83 AM |
15574 | case DT_PPC64_OPT: |
| 15575 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15576 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15577 | break; | |
| 15578 | ||
| 19397422 AM |
15579 | case DT_PPC64_OPDSZ: |
| 15580 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15581 | if (s == NULL) |
| 15582 | continue; | |
| eea6121a | 15583 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15584 | break; |
| 15585 | ||
| 65f38f15 | 15586 | case DT_PLTGOT: |
| 33e44f2e | 15587 | s = htab->elf.splt; |
| 6348e046 | 15588 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15589 | break; |
| 15590 | ||
| 15591 | case DT_JMPREL: | |
| 33e44f2e | 15592 | s = htab->elf.srelplt; |
| 6348e046 | 15593 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15594 | break; |
| 5bd4f169 | 15595 | |
| 65f38f15 | 15596 | case DT_PLTRELSZ: |
| 33e44f2e | 15597 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15598 | break; |
| 5bd4f169 | 15599 | } |
| 5bd4f169 | 15600 | |
| 65f38f15 | 15601 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15602 | } |
| 5bd4f169 AM |
15603 | } |
| 15604 | ||
| 33e44f2e | 15605 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15606 | { |
| 15607 | /* Fill in the first entry in the global offset table. | |
| 15608 | We use it to hold the link-time TOCbase. */ | |
| 15609 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15610 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15611 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15612 | |
| 15613 | /* Set .got entry size. */ | |
| 33e44f2e | 15614 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15615 | } |
| 15616 | ||
| 33e44f2e | 15617 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15618 | { |
| 15619 | /* Set .plt entry size. */ | |
| 33e44f2e | 15620 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15621 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15622 | } |
| 15623 | ||
| 84f5d08e AM |
15624 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15625 | brlt ourselves if emitrelocations. */ | |
| 15626 | if (htab->brlt != NULL | |
| 15627 | && htab->brlt->reloc_count != 0 | |
| 15628 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15629 | htab->brlt, | |
| d4730f92 | 15630 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15631 | elf_section_data (htab->brlt)->relocs, |
| 15632 | NULL)) | |
| 15633 | return FALSE; | |
| 15634 | ||
| 176a0d42 AM |
15635 | if (htab->glink != NULL |
| 15636 | && htab->glink->reloc_count != 0 | |
| 15637 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15638 | htab->glink, | |
| d4730f92 | 15639 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15640 | elf_section_data (htab->glink)->relocs, |
| 15641 | NULL)) | |
| 15642 | return FALSE; | |
| 15643 | ||
| 58d180e8 | 15644 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15645 | && htab->glink_eh_frame->size != 0) |
| 15646 | { | |
| 15647 | bfd_vma val; | |
| 15648 | bfd_byte *p; | |
| 15649 | asection *stub_sec; | |
| 15650 | ||
| 15651 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15652 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15653 | stub_sec != NULL; | |
| 15654 | stub_sec = stub_sec->next) | |
| 15655 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15656 | { | |
| 15657 | /* FDE length. */ | |
| 15658 | p += 4; | |
| 15659 | /* CIE pointer. */ | |
| 15660 | p += 4; | |
| 15661 | /* Offset to stub section. */ | |
| 15662 | val = (stub_sec->output_section->vma | |
| 15663 | + stub_sec->output_offset); | |
| 15664 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15665 | + htab->glink_eh_frame->output_offset | |
| 15666 | + (p - htab->glink_eh_frame->contents)); | |
| 15667 | if (val + 0x80000000 > 0xffffffff) | |
| 15668 | { | |
| 15669 | info->callbacks->einfo | |
| 15670 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15671 | stub_sec->name); | |
| 15672 | return FALSE; | |
| 15673 | } | |
| 15674 | bfd_put_32 (dynobj, val, p); | |
| 15675 | p += 4; | |
| 15676 | /* stub section size. */ | |
| 15677 | p += 4; | |
| 15678 | /* Augmentation. */ | |
| 15679 | p += 1; | |
| 15680 | /* Pad. */ | |
| 15681 | p += 7; | |
| 15682 | } | |
| 15683 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15684 | { | |
| 15685 | /* FDE length. */ | |
| 15686 | p += 4; | |
| 15687 | /* CIE pointer. */ | |
| 15688 | p += 4; | |
| 15689 | /* Offset to .glink. */ | |
| 15690 | val = (htab->glink->output_section->vma | |
| 15691 | + htab->glink->output_offset | |
| 15692 | + 8); | |
| 15693 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15694 | + htab->glink_eh_frame->output_offset | |
| 15695 | + (p - htab->glink_eh_frame->contents)); | |
| 15696 | if (val + 0x80000000 > 0xffffffff) | |
| 15697 | { | |
| 15698 | info->callbacks->einfo | |
| 15699 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15700 | htab->glink->name); | |
| 15701 | return FALSE; | |
| 15702 | } | |
| 15703 | bfd_put_32 (dynobj, val, p); | |
| 15704 | p += 4; | |
| 15705 | /* .glink size. */ | |
| 15706 | p += 4; | |
| 15707 | /* Augmentation. */ | |
| 15708 | p += 1; | |
| 15709 | /* Ops. */ | |
| 15710 | p += 7; | |
| 15711 | } | |
| 15712 | ||
| 15713 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15714 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15715 | htab->glink_eh_frame, | |
| 15716 | htab->glink_eh_frame->contents)) | |
| 15717 | return FALSE; | |
| 15718 | } | |
| 58d180e8 | 15719 | |
| e717da7e | 15720 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15721 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15722 | bfd. */ | |
| c72f2fb2 | 15723 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15724 | { |
| 15725 | asection *s; | |
| 7b53ace3 | 15726 | |
| 0c8d6e5c | 15727 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15728 | continue; |
| 15729 | ||
| e717da7e AM |
15730 | s = ppc64_elf_tdata (dynobj)->got; |
| 15731 | if (s != NULL | |
| eea6121a | 15732 | && s->size != 0 |
| e717da7e AM |
15733 | && s->output_section != bfd_abs_section_ptr |
| 15734 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15735 | s->contents, s->output_offset, | |
| eea6121a | 15736 | s->size)) |
| e717da7e AM |
15737 | return FALSE; |
| 15738 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15739 | if (s != NULL | |
| eea6121a | 15740 | && s->size != 0 |
| e717da7e AM |
15741 | && s->output_section != bfd_abs_section_ptr |
| 15742 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15743 | s->contents, s->output_offset, | |
| eea6121a | 15744 | s->size)) |
| e717da7e AM |
15745 | return FALSE; |
| 15746 | } | |
| f6c52c13 | 15747 | |
| b34976b6 | 15748 | return TRUE; |
| 5bd4f169 AM |
15749 | } |
| 15750 | ||
| 5bd4f169 | 15751 | #include "elf64-target.h" |
| 7b8e7dad AM |
15752 | |
| 15753 | /* FreeBSD support */ | |
| 15754 | ||
| 15755 | #undef TARGET_LITTLE_SYM | |
| 15756 | #undef TARGET_LITTLE_NAME | |
| 15757 | ||
| 15758 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15759 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15760 | #undef TARGET_BIG_NAME |
| 15761 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15762 | ||
| 15763 | #undef ELF_OSABI | |
| 15764 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15765 | ||
| 15766 | #undef elf64_bed | |
| 15767 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15768 | ||
| 15769 | #include "elf64-target.h" | |
| 15770 |