projects / thirdparty / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 219d1afa | 2 | Copyright (C) 1999-2018 Free Software Foundation, Inc. |
| 5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 4 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 5 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 6 | |
| ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 8 | |
| ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 12 | (at your option) any later version. |
| 5bd4f169 | 13 | |
| ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| 5bd4f169 | 18 | |
| 4ce794b7 AM |
19 | You should have received a copy of the GNU General Public License along |
| 20 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 21 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 22 | |
| cd123cb7 | 23 | |
| 4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
| 25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 27 | |
| 3db64b00 | 28 | #include "sysdep.h" |
| 183e98be | 29 | #include <stdarg.h> |
| 5bd4f169 | 30 | #include "bfd.h" |
| 5bd4f169 AM |
31 | #include "bfdlink.h" |
| 32 | #include "libbfd.h" | |
| 33 | #include "elf-bfd.h" | |
| 04c9666a | 34 | #include "elf/ppc64.h" |
| 5d1634d7 | 35 | #include "elf64-ppc.h" |
| 58d180e8 | 36 | #include "dwarf2.h" |
| 5bd4f169 | 37 | |
| 805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
40 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 54 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 55 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 56 | static bfd_vma opd_entry_value |
| aef36ac1 | 57 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 58 | |
| 6d00b590 | 59 | #define TARGET_LITTLE_SYM powerpc_elf64_le_vec |
| ad8e1ba5 | 60 | #define TARGET_LITTLE_NAME "elf64-powerpcle" |
| 6d00b590 | 61 | #define TARGET_BIG_SYM powerpc_elf64_vec |
| ad8e1ba5 AM |
62 | #define TARGET_BIG_NAME "elf64-powerpc" |
| 63 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 64 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
65 | #define ELF_MACHINE_CODE EM_PPC64 |
| 66 | #define ELF_MAXPAGESIZE 0x10000 | |
| 04c6a44c | 67 | #define ELF_COMMONPAGESIZE 0x10000 |
| ad8e1ba5 AM |
68 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 69 | ||
| 70 | #define elf_backend_want_got_sym 0 | |
| 71 | #define elf_backend_want_plt_sym 0 | |
| 72 | #define elf_backend_plt_alignment 3 | |
| 73 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 74 | #define elf_backend_got_header_size 8 |
| 5474d94f | 75 | #define elf_backend_want_dynrelro 1 |
| ad8e1ba5 AM |
76 | #define elf_backend_can_gc_sections 1 |
| 77 | #define elf_backend_can_refcount 1 | |
| 78 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 79 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 80 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 81 | |
| e717da7e | 82 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 83 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 84 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
85 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 86 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
87 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 88 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 89 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 90 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| 8c5b4e52 | 91 | #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections |
| ad8e1ba5 AM |
92 | |
| 93 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
94 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 95 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 96 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| 9d19e4fd | 97 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
| ad8e1ba5 | 98 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol |
| 555cd476 | 99 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 100 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 101 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 102 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 103 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| c0e331c7 | 104 | #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible |
| 74f0fb50 | 105 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 106 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 | 107 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| ad8e1ba5 AM |
108 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol |
| 109 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 110 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
111 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 112 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 113 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 114 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 115 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
116 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 117 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 118 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 119 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 120 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 121 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 122 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| 8c5b4e52 | 123 | #define elf_backend_merge_symbol ppc64_elf_merge_symbol |
| bce964aa | 124 | #define elf_backend_get_reloc_section bfd_get_section_by_name |
| ad8e1ba5 | 125 | |
| 5bd4f169 AM |
126 | /* The name of the dynamic interpreter. This is put in the .interp |
| 127 | section. */ | |
| 128 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 129 | ||
| 130 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 131 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
132 | |
| 133 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 134 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 135 | |
| a078d95a AM |
136 | /* Offsets to some stack save slots. */ |
| 137 | #define STK_LR 16 | |
| 138 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 139 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
140 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 141 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 142 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 143 | ||
| 5bd4f169 | 144 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 145 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
146 | /* TOC base alignment. */ |
| 147 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
148 | |
| 149 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 150 | #define TP_OFFSET 0x7000 | |
| 151 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 152 | |
| ad8e1ba5 AM |
153 | /* .plt call stub instructions. The normal stub is like this, but |
| 154 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 155 | insert an addi to adjust r11. */ |
| a078d95a | 156 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
157 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 158 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 159 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 160 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 161 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
162 | #define BCTR 0x4e800420 /* bctr */ |
| 163 | ||
| 1be5d8d3 AM |
164 | #define CRSETEQ 0x4c421242 /* crset 4*%cr0+%eq */ |
| 165 | #define BEQCTRM 0x4dc20420 /* beqctr- */ | |
| 166 | #define BEQCTRLM 0x4dc20421 /* beqctrl- */ | |
| 167 | ||
| 07d6d2b8 AM |
168 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| 169 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ | |
| 170 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 171 | ||
| 172 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ | |
| 173 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 174 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 175 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ | |
| 176 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 177 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 178 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 794e51c0 | 179 | |
| 71a39c98 | 180 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 | 181 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 07d6d2b8 | 182 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ |
| ac2df442 | 183 | |
| 07d6d2b8 AM |
184 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 185 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ | |
| 186 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 187 | |
| 07d6d2b8 | 188 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 006589cf AM |
189 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ |
| 190 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d | 191 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 07d6d2b8 | 192 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ |
| a345bc8d | 193 | |
| 9e390558 AM |
194 | /* __glink_PLTresolve stub instructions. We enter with the index in R0. */ |
| 195 | #define GLINK_PLTRESOLVE_SIZE(htab) \ | |
| 1be5d8d3 AM |
196 | (8u + (htab->opd_abi ? 11 * 4 : 14 * 4) \ |
| 197 | + (!htab->params->speculate_indirect_jumps ? 2 * 4 : 0)) | |
| ee4bf8d2 AM |
198 | /* 0: */ |
| 199 | /* .quad plt0-1f */ | |
| 200 | /* __glink: */ | |
| 201 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 202 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 203 | /* 1: */ | |
| 204 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 205 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 206 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
207 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 208 | /* ld %12,0(%11) */ | |
| 209 | /* ld %2,8(%11) */ | |
| 210 | /* mtctr %12 */ | |
| 211 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 212 | /* bctr */ |
| b9e5796b AM |
213 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 214 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 215 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 216 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 217 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
218 | |
| 219 | /* Pad with this. */ | |
| 220 | #define NOP 0x60000000 | |
| 221 | ||
| 721956f4 AM |
222 | /* Some other nops. */ |
| 223 | #define CROR_151515 0x4def7b82 | |
| 224 | #define CROR_313131 0x4ffffb82 | |
| 225 | ||
| cedb70c5 | 226 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
227 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 228 | #define B_DOT 0x48000000 /* b . */ | |
| 229 | ||
| 230 | /* After that, we need two instructions to load the index, followed by | |
| 231 | a branch. */ | |
| 232 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 233 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 234 | |
| deb0e272 AM |
235 | /* Instructions used by the save and restore reg functions. */ |
| 236 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 237 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 238 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 239 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
240 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 241 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
242 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 243 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 244 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 245 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
246 | #define BLR 0x4e800020 /* blr */ |
| 247 | ||
| 41bd81ab AM |
248 | /* Since .opd is an array of descriptors and each entry will end up |
| 249 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 250 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 251 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
252 | #ifndef NO_OPD_RELOCS |
| 253 | #define NO_OPD_RELOCS 0 | |
| 254 | #endif | |
| 810d4e75 | 255 | |
| a4b6fadd AM |
256 | #ifndef ARRAY_SIZE |
| 257 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 258 | #endif | |
| 259 | ||
| 810d4e75 AM |
260 | static inline int |
| 261 | abiversion (bfd *abfd) | |
| 262 | { | |
| 263 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 264 | } | |
| 265 | ||
| 266 | static inline void | |
| 267 | set_abiversion (bfd *abfd, int ver) | |
| 268 | { | |
| 269 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 270 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 271 | } | |
| 5bd4f169 | 272 | \f |
| f5e87a1d | 273 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 274 | |
| 5bd4f169 | 275 | /* Relocation HOWTO's. */ |
| 04c9666a | 276 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
277 | |
| 278 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 279 | /* This reloc does nothing. */ | |
| 280 | HOWTO (R_PPC64_NONE, /* type */ | |
| 281 | 0, /* rightshift */ | |
| 6346d5ca AM |
282 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 283 | 0, /* bitsize */ | |
| b34976b6 | 284 | FALSE, /* pc_relative */ |
| 5bd4f169 | 285 | 0, /* bitpos */ |
| f5e87a1d | 286 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
287 | bfd_elf_generic_reloc, /* special_function */ |
| 288 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 289 | FALSE, /* partial_inplace */ |
| d006db6c | 290 | 0, /* src_mask */ |
| 5bd4f169 | 291 | 0, /* dst_mask */ |
| b34976b6 | 292 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
293 | |
| 294 | /* A standard 32 bit relocation. */ | |
| 295 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 296 | 0, /* rightshift */ | |
| 297 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 298 | 32, /* bitsize */ | |
| b34976b6 | 299 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
300 | 0, /* bitpos */ |
| 301 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 302 | bfd_elf_generic_reloc, /* special_function */ | |
| 303 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 304 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
305 | 0, /* src_mask */ |
| 306 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 307 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
308 | |
| 309 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 310 | FIXME: we don't check that, we just clear them. */ | |
| 311 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 312 | 0, /* rightshift */ | |
| 313 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 314 | 26, /* bitsize */ | |
| b34976b6 | 315 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
316 | 0, /* bitpos */ |
| 317 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 318 | bfd_elf_generic_reloc, /* special_function */ | |
| 319 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 320 | FALSE, /* partial_inplace */ |
| d006db6c | 321 | 0, /* src_mask */ |
| f5e87a1d | 322 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 323 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
324 | |
| 325 | /* A standard 16 bit relocation. */ | |
| 326 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 327 | 0, /* rightshift */ | |
| 328 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 329 | 16, /* bitsize */ | |
| b34976b6 | 330 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
331 | 0, /* bitpos */ |
| 332 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 333 | bfd_elf_generic_reloc, /* special_function */ | |
| 334 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 335 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
336 | 0, /* src_mask */ |
| 337 | 0xffff, /* dst_mask */ | |
| b34976b6 | 338 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
339 | |
| 340 | /* A 16 bit relocation without overflow. */ | |
| 341 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 342 | 0, /* rightshift */ | |
| 343 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 344 | 16, /* bitsize */ | |
| b34976b6 | 345 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
346 | 0, /* bitpos */ |
| 347 | complain_overflow_dont,/* complain_on_overflow */ | |
| 348 | bfd_elf_generic_reloc, /* special_function */ | |
| 349 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 350 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
351 | 0, /* src_mask */ |
| 352 | 0xffff, /* dst_mask */ | |
| b34976b6 | 353 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
354 | |
| 355 | /* Bits 16-31 of an address. */ | |
| 356 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 357 | 16, /* rightshift */ | |
| 358 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 359 | 16, /* bitsize */ | |
| b34976b6 | 360 | FALSE, /* pc_relative */ |
| 5bd4f169 | 361 | 0, /* bitpos */ |
| f9c6b907 | 362 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
363 | bfd_elf_generic_reloc, /* special_function */ |
| 364 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 365 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
366 | 0, /* src_mask */ |
| 367 | 0xffff, /* dst_mask */ | |
| b34976b6 | 368 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
369 | |
| 370 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 371 | bits, treated as a signed number, is negative. */ | |
| 372 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 373 | 16, /* rightshift */ | |
| 374 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 375 | 16, /* bitsize */ | |
| b34976b6 | 376 | FALSE, /* pc_relative */ |
| 5bd4f169 | 377 | 0, /* bitpos */ |
| f9c6b907 | 378 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 379 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 380 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 381 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
382 | 0, /* src_mask */ |
| 383 | 0xffff, /* dst_mask */ | |
| b34976b6 | 384 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
385 | |
| 386 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 387 | FIXME: we don't check that, we just clear them. */ | |
| 388 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 389 | 0, /* rightshift */ | |
| 390 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 391 | 16, /* bitsize */ | |
| b34976b6 | 392 | FALSE, /* pc_relative */ |
| 5bd4f169 | 393 | 0, /* bitpos */ |
| b80eed39 | 394 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 395 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 396 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 397 | FALSE, /* partial_inplace */ |
| d006db6c | 398 | 0, /* src_mask */ |
| f5e87a1d | 399 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 400 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
401 | |
| 402 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 403 | indicate that the branch is expected to be taken. The lower two | |
| 404 | bits must be zero. */ | |
| 405 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 406 | 0, /* rightshift */ | |
| 407 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 408 | 16, /* bitsize */ | |
| b34976b6 | 409 | FALSE, /* pc_relative */ |
| 5bd4f169 | 410 | 0, /* bitpos */ |
| b80eed39 | 411 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 412 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 413 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 414 | FALSE, /* partial_inplace */ |
| d006db6c | 415 | 0, /* src_mask */ |
| f5e87a1d | 416 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 417 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
418 | |
| 419 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 420 | indicate that the branch is not expected to be taken. The lower | |
| 421 | two bits must be zero. */ | |
| 422 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 423 | 0, /* rightshift */ | |
| 424 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 425 | 16, /* bitsize */ | |
| b34976b6 | 426 | FALSE, /* pc_relative */ |
| 5bd4f169 | 427 | 0, /* bitpos */ |
| b80eed39 | 428 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 429 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 430 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 431 | FALSE, /* partial_inplace */ |
| d006db6c | 432 | 0, /* src_mask */ |
| f5e87a1d | 433 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 434 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
435 | |
| 436 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 437 | HOWTO (R_PPC64_REL24, /* type */ | |
| 438 | 0, /* rightshift */ | |
| 439 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 440 | 26, /* bitsize */ | |
| b34976b6 | 441 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
442 | 0, /* bitpos */ |
| 443 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 444 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 445 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 446 | FALSE, /* partial_inplace */ |
| d006db6c | 447 | 0, /* src_mask */ |
| f5e87a1d | 448 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 449 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
450 | |
| 451 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 452 | HOWTO (R_PPC64_REL14, /* type */ | |
| 453 | 0, /* rightshift */ | |
| 454 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 455 | 16, /* bitsize */ | |
| b34976b6 | 456 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
457 | 0, /* bitpos */ |
| 458 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 459 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 460 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 461 | FALSE, /* partial_inplace */ |
| d006db6c | 462 | 0, /* src_mask */ |
| f5e87a1d | 463 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 464 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
465 | |
| 466 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 467 | the branch is expected to be taken. The lower two bits must be | |
| 468 | zero. */ | |
| 469 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 470 | 0, /* rightshift */ | |
| 471 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 472 | 16, /* bitsize */ | |
| b34976b6 | 473 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
474 | 0, /* bitpos */ |
| 475 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 476 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 477 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 478 | FALSE, /* partial_inplace */ |
| d006db6c | 479 | 0, /* src_mask */ |
| f5e87a1d | 480 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 481 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
482 | |
| 483 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 484 | the branch is not expected to be taken. The lower two bits must | |
| 485 | be zero. */ | |
| 486 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 487 | 0, /* rightshift */ | |
| 488 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 489 | 16, /* bitsize */ | |
| b34976b6 | 490 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
491 | 0, /* bitpos */ |
| 492 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 493 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 494 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 495 | FALSE, /* partial_inplace */ |
| d006db6c | 496 | 0, /* src_mask */ |
| f5e87a1d | 497 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 498 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
499 | |
| 500 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 501 | symbol. */ | |
| 502 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 503 | 0, /* rightshift */ | |
| 504 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 505 | 16, /* bitsize */ | |
| b34976b6 | 506 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
507 | 0, /* bitpos */ |
| 508 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 509 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 510 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 511 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
512 | 0, /* src_mask */ |
| 513 | 0xffff, /* dst_mask */ | |
| b34976b6 | 514 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
515 | |
| 516 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 517 | the symbol. */ | |
| 518 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 519 | 0, /* rightshift */ | |
| 520 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 521 | 16, /* bitsize */ | |
| b34976b6 | 522 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
523 | 0, /* bitpos */ |
| 524 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 525 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 526 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 527 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
528 | 0, /* src_mask */ |
| 529 | 0xffff, /* dst_mask */ | |
| b34976b6 | 530 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
531 | |
| 532 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 533 | the symbol. */ | |
| 534 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 535 | 16, /* rightshift */ | |
| 536 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 537 | 16, /* bitsize */ | |
| b34976b6 | 538 | FALSE, /* pc_relative */ |
| 5bd4f169 | 539 | 0, /* bitpos */ |
| f9c6b907 | 540 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 541 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 542 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 543 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
544 | 0, /* src_mask */ |
| 545 | 0xffff, /* dst_mask */ | |
| b34976b6 | 546 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
547 | |
| 548 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 549 | the symbol. */ | |
| 550 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 551 | 16, /* rightshift */ | |
| 552 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 553 | 16, /* bitsize */ | |
| b34976b6 | 554 | FALSE, /* pc_relative */ |
| 5bd4f169 | 555 | 0, /* bitpos */ |
| f9c6b907 | 556 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 557 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 558 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 559 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
560 | 0, /* src_mask */ |
| 561 | 0xffff, /* dst_mask */ | |
| b34976b6 | 562 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
563 | |
| 564 | /* This is used only by the dynamic linker. The symbol should exist | |
| 565 | both in the object being run and in some shared library. The | |
| 566 | dynamic linker copies the data addressed by the symbol from the | |
| 567 | shared library into the object, because the object being | |
| 568 | run has to have the data at some particular address. */ | |
| 569 | HOWTO (R_PPC64_COPY, /* type */ | |
| 570 | 0, /* rightshift */ | |
| f5e87a1d AM |
571 | 0, /* this one is variable size */ |
| 572 | 0, /* bitsize */ | |
| b34976b6 | 573 | FALSE, /* pc_relative */ |
| 5bd4f169 | 574 | 0, /* bitpos */ |
| f5e87a1d AM |
575 | complain_overflow_dont, /* complain_on_overflow */ |
| 576 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 577 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 578 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
579 | 0, /* src_mask */ |
| 580 | 0, /* dst_mask */ | |
| b34976b6 | 581 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
582 | |
| 583 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 584 | entries. */ | |
| 585 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 586 | 0, /* rightshift */ | |
| 587 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 588 | 64, /* bitsize */ | |
| b34976b6 | 589 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
590 | 0, /* bitpos */ |
| 591 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 592 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 593 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 594 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 595 | 0, /* src_mask */ |
| f5e87a1d | 596 | ONES (64), /* dst_mask */ |
| b34976b6 | 597 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
598 | |
| 599 | /* Created by the link editor. Marks a procedure linkage table | |
| 600 | entry for a symbol. */ | |
| 601 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 602 | 0, /* rightshift */ | |
| 603 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 604 | 0, /* bitsize */ | |
| b34976b6 | 605 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
606 | 0, /* bitpos */ |
| 607 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 608 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 609 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 610 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
611 | 0, /* src_mask */ |
| 612 | 0, /* dst_mask */ | |
| b34976b6 | 613 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
614 | |
| 615 | /* Used only by the dynamic linker. When the object is run, this | |
| 616 | doubleword64 is set to the load address of the object, plus the | |
| 617 | addend. */ | |
| 618 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 619 | 0, /* rightshift */ | |
| 620 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 621 | 64, /* bitsize */ | |
| b34976b6 | 622 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
623 | 0, /* bitpos */ |
| 624 | complain_overflow_dont, /* complain_on_overflow */ | |
| 625 | bfd_elf_generic_reloc, /* special_function */ | |
| 626 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 627 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 628 | 0, /* src_mask */ |
| f5e87a1d | 629 | ONES (64), /* dst_mask */ |
| b34976b6 | 630 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
631 | |
| 632 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 633 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 634 | 0, /* rightshift */ | |
| 635 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 636 | 32, /* bitsize */ | |
| b34976b6 | 637 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
638 | 0, /* bitpos */ |
| 639 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 640 | bfd_elf_generic_reloc, /* special_function */ | |
| 641 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 642 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
643 | 0, /* src_mask */ |
| 644 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 645 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
646 | |
| 647 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 648 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 649 | 0, /* rightshift */ | |
| 650 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 651 | 16, /* bitsize */ | |
| b34976b6 | 652 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
653 | 0, /* bitpos */ |
| 654 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 655 | bfd_elf_generic_reloc, /* special_function */ | |
| 656 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 657 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
658 | 0, /* src_mask */ |
| 659 | 0xffff, /* dst_mask */ | |
| b34976b6 | 660 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
661 | |
| 662 | /* 32-bit PC relative. */ | |
| 663 | HOWTO (R_PPC64_REL32, /* type */ | |
| 664 | 0, /* rightshift */ | |
| 665 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 666 | 32, /* bitsize */ | |
| b34976b6 | 667 | TRUE, /* pc_relative */ |
| 5bd4f169 | 668 | 0, /* bitpos */ |
| 5bd4f169 AM |
669 | complain_overflow_signed, /* complain_on_overflow */ |
| 670 | bfd_elf_generic_reloc, /* special_function */ | |
| 671 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 672 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
673 | 0, /* src_mask */ |
| 674 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 675 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 676 | |
| 10ed1bba | 677 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
678 | HOWTO (R_PPC64_PLT32, /* type */ |
| 679 | 0, /* rightshift */ | |
| 680 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 681 | 32, /* bitsize */ | |
| b34976b6 | 682 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
683 | 0, /* bitpos */ |
| 684 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 685 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 686 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 687 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 688 | 0, /* src_mask */ |
| f5e87a1d | 689 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 690 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
691 | |
| 692 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 693 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 694 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 695 | 0, /* rightshift */ | |
| 696 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 697 | 32, /* bitsize */ | |
| b34976b6 | 698 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
699 | 0, /* bitpos */ |
| 700 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 701 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 702 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 703 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 704 | 0, /* src_mask */ |
| f5e87a1d | 705 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 706 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
707 | |
| 708 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 709 | the symbol. */ | |
| 710 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 711 | 0, /* rightshift */ | |
| 712 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 713 | 16, /* bitsize */ | |
| b34976b6 | 714 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
715 | 0, /* bitpos */ |
| 716 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 717 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 718 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 719 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
720 | 0, /* src_mask */ |
| 721 | 0xffff, /* dst_mask */ | |
| b34976b6 | 722 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
723 | |
| 724 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 725 | the symbol. */ | |
| 726 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 727 | 16, /* rightshift */ | |
| 728 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 729 | 16, /* bitsize */ | |
| b34976b6 | 730 | FALSE, /* pc_relative */ |
| 5bd4f169 | 731 | 0, /* bitpos */ |
| f9c6b907 | 732 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 733 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 734 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 735 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
736 | 0, /* src_mask */ |
| 737 | 0xffff, /* dst_mask */ | |
| b34976b6 | 738 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
739 | |
| 740 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 741 | the symbol. */ | |
| 742 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 743 | 16, /* rightshift */ | |
| 744 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 745 | 16, /* bitsize */ | |
| b34976b6 | 746 | FALSE, /* pc_relative */ |
| 5bd4f169 | 747 | 0, /* bitpos */ |
| f9c6b907 | 748 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 749 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 750 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 751 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
752 | 0, /* src_mask */ |
| 753 | 0xffff, /* dst_mask */ | |
| b34976b6 | 754 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 755 | |
| c061c2d8 | 756 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
757 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 758 | 0, /* rightshift */ | |
| c061c2d8 AM |
759 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 760 | 16, /* bitsize */ | |
| b34976b6 | 761 | FALSE, /* pc_relative */ |
| 5bd4f169 | 762 | 0, /* bitpos */ |
| b80eed39 | 763 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 764 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 765 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 766 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 767 | 0, /* src_mask */ |
| c061c2d8 | 768 | 0xffff, /* dst_mask */ |
| b34976b6 | 769 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 770 | |
| c061c2d8 | 771 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
772 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 773 | 0, /* rightshift */ | |
| 774 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 775 | 16, /* bitsize */ | |
| b34976b6 | 776 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
777 | 0, /* bitpos */ |
| 778 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 779 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 780 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 781 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
782 | 0, /* src_mask */ |
| 783 | 0xffff, /* dst_mask */ | |
| b34976b6 | 784 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
785 | |
| 786 | /* 16-bit upper half section relative relocation. */ | |
| 787 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 788 | 16, /* rightshift */ | |
| 789 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 790 | 16, /* bitsize */ | |
| b34976b6 | 791 | FALSE, /* pc_relative */ |
| 5bd4f169 | 792 | 0, /* bitpos */ |
| f9c6b907 | 793 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 794 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 795 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 796 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
797 | 0, /* src_mask */ |
| 798 | 0xffff, /* dst_mask */ | |
| b34976b6 | 799 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
800 | |
| 801 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 802 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 803 | 16, /* rightshift */ | |
| 804 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 805 | 16, /* bitsize */ | |
| b34976b6 | 806 | FALSE, /* pc_relative */ |
| 5bd4f169 | 807 | 0, /* bitpos */ |
| f9c6b907 | 808 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 809 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 810 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 811 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
812 | 0, /* src_mask */ |
| 813 | 0xffff, /* dst_mask */ | |
| b34976b6 | 814 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 815 | |
| 04c9666a AM |
816 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 817 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
818 | 2, /* rightshift */ |
| 819 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 820 | 30, /* bitsize */ | |
| b34976b6 | 821 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
822 | 0, /* bitpos */ |
| 823 | complain_overflow_dont, /* complain_on_overflow */ | |
| 824 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 825 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 826 | FALSE, /* partial_inplace */ |
| d006db6c | 827 | 0, /* src_mask */ |
| 5bd4f169 | 828 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 829 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
830 | |
| 831 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 832 | ||
| 833 | /* A standard 64-bit relocation. */ | |
| 834 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 835 | 0, /* rightshift */ | |
| 836 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 837 | 64, /* bitsize */ | |
| b34976b6 | 838 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
839 | 0, /* bitpos */ |
| 840 | complain_overflow_dont, /* complain_on_overflow */ | |
| 841 | bfd_elf_generic_reloc, /* special_function */ | |
| 842 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 843 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 844 | 0, /* src_mask */ |
| f5e87a1d | 845 | ONES (64), /* dst_mask */ |
| b34976b6 | 846 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
847 | |
| 848 | /* The bits 32-47 of an address. */ | |
| 849 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 850 | 32, /* rightshift */ | |
| 851 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 852 | 16, /* bitsize */ | |
| b34976b6 | 853 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
854 | 0, /* bitpos */ |
| 855 | complain_overflow_dont, /* complain_on_overflow */ | |
| 856 | bfd_elf_generic_reloc, /* special_function */ | |
| 857 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 858 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
859 | 0, /* src_mask */ |
| 860 | 0xffff, /* dst_mask */ | |
| b34976b6 | 861 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
862 | |
| 863 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 864 | 16 bits, treated as a signed number, is negative. */ | |
| 865 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 866 | 32, /* rightshift */ | |
| 867 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 868 | 16, /* bitsize */ | |
| b34976b6 | 869 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
870 | 0, /* bitpos */ |
| 871 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 872 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 873 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 874 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
875 | 0, /* src_mask */ |
| 876 | 0xffff, /* dst_mask */ | |
| b34976b6 | 877 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
878 | |
| 879 | /* The bits 48-63 of an address. */ | |
| 880 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 881 | 48, /* rightshift */ | |
| 882 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 883 | 16, /* bitsize */ | |
| b34976b6 | 884 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
885 | 0, /* bitpos */ |
| 886 | complain_overflow_dont, /* complain_on_overflow */ | |
| 887 | bfd_elf_generic_reloc, /* special_function */ | |
| 888 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 889 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
890 | 0, /* src_mask */ |
| 891 | 0xffff, /* dst_mask */ | |
| b34976b6 | 892 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
893 | |
| 894 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 895 | 16 bits, treated as a signed number, is negative. */ | |
| 896 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 897 | 48, /* rightshift */ | |
| 898 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 899 | 16, /* bitsize */ | |
| b34976b6 | 900 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
901 | 0, /* bitpos */ |
| 902 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 903 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 904 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 905 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
906 | 0, /* src_mask */ |
| 907 | 0xffff, /* dst_mask */ | |
| b34976b6 | 908 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
909 | |
| 910 | /* Like ADDR64, but may be unaligned. */ | |
| 911 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 912 | 0, /* rightshift */ | |
| 913 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 914 | 64, /* bitsize */ | |
| b34976b6 | 915 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
916 | 0, /* bitpos */ |
| 917 | complain_overflow_dont, /* complain_on_overflow */ | |
| 918 | bfd_elf_generic_reloc, /* special_function */ | |
| 919 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 920 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 921 | 0, /* src_mask */ |
| f5e87a1d | 922 | ONES (64), /* dst_mask */ |
| b34976b6 | 923 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
924 | |
| 925 | /* 64-bit relative relocation. */ | |
| 926 | HOWTO (R_PPC64_REL64, /* type */ | |
| 927 | 0, /* rightshift */ | |
| 928 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 929 | 64, /* bitsize */ | |
| b34976b6 | 930 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
931 | 0, /* bitpos */ |
| 932 | complain_overflow_dont, /* complain_on_overflow */ | |
| 933 | bfd_elf_generic_reloc, /* special_function */ | |
| 934 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 935 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 936 | 0, /* src_mask */ |
| f5e87a1d | 937 | ONES (64), /* dst_mask */ |
| b34976b6 | 938 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 939 | |
| cedb70c5 | 940 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
941 | HOWTO (R_PPC64_PLT64, /* type */ |
| 942 | 0, /* rightshift */ | |
| 943 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 944 | 64, /* bitsize */ | |
| b34976b6 | 945 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
946 | 0, /* bitpos */ |
| 947 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 948 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 949 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 950 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 951 | 0, /* src_mask */ |
| f5e87a1d | 952 | ONES (64), /* dst_mask */ |
| b34976b6 | 953 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
954 | |
| 955 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 956 | table. */ | |
| 957 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 958 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 959 | 0, /* rightshift */ | |
| 960 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 961 | 64, /* bitsize */ | |
| b34976b6 | 962 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
963 | 0, /* bitpos */ |
| 964 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 965 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 966 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 967 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 968 | 0, /* src_mask */ |
| f5e87a1d | 969 | ONES (64), /* dst_mask */ |
| b34976b6 | 970 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
971 | |
| 972 | /* 16 bit TOC-relative relocation. */ | |
| 973 | ||
| 974 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 975 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 976 | 0, /* rightshift */ | |
| 977 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 978 | 16, /* bitsize */ | |
| b34976b6 | 979 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
980 | 0, /* bitpos */ |
| 981 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 982 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 983 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 984 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
985 | 0, /* src_mask */ |
| 986 | 0xffff, /* dst_mask */ | |
| b34976b6 | 987 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
988 | |
| 989 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 990 | ||
| 991 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 992 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 993 | 0, /* rightshift */ | |
| 994 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 995 | 16, /* bitsize */ | |
| b34976b6 | 996 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
997 | 0, /* bitpos */ |
| 998 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 999 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1000 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 1001 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1002 | 0, /* src_mask */ |
| 1003 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1004 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1005 | |
| 1006 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1007 | ||
| 1008 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1009 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1010 | 16, /* rightshift */ | |
| 1011 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1012 | 16, /* bitsize */ | |
| b34976b6 | 1013 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1014 | 0, /* bitpos */ |
| f9c6b907 | 1015 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1016 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1017 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1018 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1019 | 0, /* src_mask */ |
| 1020 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1021 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1022 | |
| 1023 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1024 | contents of the low 16 bits, treated as a signed number, is | |
| 1025 | negative. */ | |
| 1026 | ||
| 1027 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1028 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1029 | 16, /* rightshift */ | |
| 1030 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1031 | 16, /* bitsize */ | |
| b34976b6 | 1032 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1033 | 0, /* bitpos */ |
| f9c6b907 | 1034 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1035 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1036 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1037 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1038 | 0, /* src_mask */ |
| 1039 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1040 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1041 | |
| 1042 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1043 | ||
| 1044 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1045 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1046 | 0, /* rightshift */ | |
| 1047 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1048 | 64, /* bitsize */ | |
| b34976b6 | 1049 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1050 | 0, /* bitpos */ |
| b80eed39 | 1051 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1052 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1053 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1054 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1055 | 0, /* src_mask */ |
| f5e87a1d | 1056 | ONES (64), /* dst_mask */ |
| b34976b6 | 1057 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1058 | |
| 1059 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1060 | value to relocate may (!) refer to a PLT entry which the link | |
| 1061 | editor (a) may replace with the symbol value. If the link editor | |
| 1062 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1063 | entry and store the address to the new PLT entry in the GOT. | |
| 1064 | This permits lazy resolution of function symbols at run time. | |
| 1065 | The link editor may also skip all of this and just (c) emit a | |
| 1066 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1067 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1068 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1069 | 0, /* rightshift */ | |
| 1070 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1071 | 16, /* bitsize */ | |
| b34976b6 | 1072 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1073 | 0, /* bitpos */ |
| 1074 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1075 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1076 | "R_PPC64_PLTGOT16", /* name */ |
| 1077 | FALSE, /* partial_inplace */ | |
| 1078 | 0, /* src_mask */ | |
| 1079 | 0xffff, /* dst_mask */ | |
| 1080 | FALSE), /* pcrel_offset */ | |
| 1081 | ||
| 1082 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1083 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1084 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1085 | 0, /* rightshift */ | |
| 1086 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1087 | 16, /* bitsize */ | |
| 1088 | FALSE, /* pc_relative */ | |
| 1089 | 0, /* bitpos */ | |
| 1090 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1091 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1092 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1093 | FALSE, /* partial_inplace */ | |
| 1094 | 0, /* src_mask */ | |
| 1095 | 0xffff, /* dst_mask */ | |
| 1096 | FALSE), /* pcrel_offset */ | |
| 1097 | ||
| 1098 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1099 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1100 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1101 | 16, /* rightshift */ | |
| 1102 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1103 | 16, /* bitsize */ | |
| 1104 | FALSE, /* pc_relative */ | |
| 1105 | 0, /* bitpos */ | |
| f9c6b907 | 1106 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1107 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1108 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1109 | FALSE, /* partial_inplace */ | |
| 1110 | 0, /* src_mask */ | |
| 1111 | 0xffff, /* dst_mask */ | |
| 1112 | FALSE), /* pcrel_offset */ | |
| 1113 | ||
| 1114 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1115 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1116 | is negative. */ | |
| 1117 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1118 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1119 | 16, /* rightshift */ | |
| 1120 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1121 | 16, /* bitsize */ | |
| 1122 | FALSE, /* pc_relative */ | |
| 1123 | 0, /* bitpos */ | |
| f9c6b907 | 1124 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1125 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1126 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1127 | FALSE, /* partial_inplace */ | |
| 1128 | 0, /* src_mask */ | |
| 1129 | 0xffff, /* dst_mask */ | |
| 1130 | FALSE), /* pcrel_offset */ | |
| 1131 | ||
| 1132 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1133 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1134 | 0, /* rightshift */ | |
| 1135 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1136 | 16, /* bitsize */ | |
| 1137 | FALSE, /* pc_relative */ | |
| 1138 | 0, /* bitpos */ | |
| b80eed39 | 1139 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1140 | bfd_elf_generic_reloc, /* special_function */ |
| 1141 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1142 | FALSE, /* partial_inplace */ | |
| 1143 | 0, /* src_mask */ | |
| 1144 | 0xfffc, /* dst_mask */ | |
| 1145 | FALSE), /* pcrel_offset */ | |
| 1146 | ||
| 1147 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1148 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1149 | 0, /* rightshift */ | |
| 1150 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1151 | 16, /* bitsize */ | |
| 1152 | FALSE, /* pc_relative */ | |
| 1153 | 0, /* bitpos */ | |
| 1154 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1155 | bfd_elf_generic_reloc, /* special_function */ | |
| 1156 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1157 | FALSE, /* partial_inplace */ | |
| 1158 | 0, /* src_mask */ | |
| 1159 | 0xfffc, /* dst_mask */ | |
| 1160 | FALSE), /* pcrel_offset */ | |
| 1161 | ||
| 1162 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1163 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1164 | 0, /* rightshift */ | |
| 1165 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1166 | 16, /* bitsize */ | |
| 1167 | FALSE, /* pc_relative */ | |
| 1168 | 0, /* bitpos */ | |
| 1169 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1170 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1171 | "R_PPC64_GOT16_DS", /* name */ | |
| 1172 | FALSE, /* partial_inplace */ | |
| 1173 | 0, /* src_mask */ | |
| 1174 | 0xfffc, /* dst_mask */ | |
| 1175 | FALSE), /* pcrel_offset */ | |
| 1176 | ||
| 1177 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1178 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1179 | 0, /* rightshift */ | |
| 1180 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1181 | 16, /* bitsize */ | |
| 1182 | FALSE, /* pc_relative */ | |
| 1183 | 0, /* bitpos */ | |
| 1184 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1185 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1186 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1187 | FALSE, /* partial_inplace */ | |
| 1188 | 0, /* src_mask */ | |
| 1189 | 0xfffc, /* dst_mask */ | |
| 1190 | FALSE), /* pcrel_offset */ | |
| 1191 | ||
| 1192 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1193 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1194 | 0, /* rightshift */ | |
| 1195 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1196 | 16, /* bitsize */ | |
| 1197 | FALSE, /* pc_relative */ | |
| 1198 | 0, /* bitpos */ | |
| 1199 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1200 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1201 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1202 | FALSE, /* partial_inplace */ | |
| 1203 | 0, /* src_mask */ | |
| 1204 | 0xfffc, /* dst_mask */ | |
| 1205 | FALSE), /* pcrel_offset */ | |
| 1206 | ||
| 1207 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1208 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1209 | 0, /* rightshift */ | |
| 1210 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1211 | 16, /* bitsize */ | |
| 1212 | FALSE, /* pc_relative */ | |
| 1213 | 0, /* bitpos */ | |
| b80eed39 | 1214 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1215 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1216 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1217 | FALSE, /* partial_inplace */ | |
| 1218 | 0, /* src_mask */ | |
| 1219 | 0xfffc, /* dst_mask */ | |
| 1220 | FALSE), /* pcrel_offset */ | |
| 1221 | ||
| 1222 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1223 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1224 | 0, /* rightshift */ | |
| 1225 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1226 | 16, /* bitsize */ | |
| 1227 | FALSE, /* pc_relative */ | |
| 1228 | 0, /* bitpos */ | |
| 1229 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1230 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1231 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1232 | FALSE, /* partial_inplace */ | |
| 1233 | 0, /* src_mask */ | |
| 1234 | 0xfffc, /* dst_mask */ | |
| 1235 | FALSE), /* pcrel_offset */ | |
| 1236 | ||
| 1237 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1238 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1239 | 0, /* rightshift */ | |
| 1240 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1241 | 16, /* bitsize */ | |
| 1242 | FALSE, /* pc_relative */ | |
| 1243 | 0, /* bitpos */ | |
| 1244 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1245 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1246 | "R_PPC64_TOC16_DS", /* name */ | |
| 1247 | FALSE, /* partial_inplace */ | |
| 1248 | 0, /* src_mask */ | |
| 1249 | 0xfffc, /* dst_mask */ | |
| 1250 | FALSE), /* pcrel_offset */ | |
| 1251 | ||
| 1252 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1253 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1254 | 0, /* rightshift */ | |
| 1255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1256 | 16, /* bitsize */ | |
| 1257 | FALSE, /* pc_relative */ | |
| 1258 | 0, /* bitpos */ | |
| 1259 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1260 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1261 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1262 | FALSE, /* partial_inplace */ | |
| 1263 | 0, /* src_mask */ | |
| 1264 | 0xfffc, /* dst_mask */ | |
| 1265 | FALSE), /* pcrel_offset */ | |
| 1266 | ||
| 1267 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1268 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1269 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1270 | 0, /* rightshift */ |
| 1271 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1272 | 16, /* bitsize */ | |
| 1273 | FALSE, /* pc_relative */ | |
| 1274 | 0, /* bitpos */ | |
| 1275 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1276 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1277 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1278 | FALSE, /* partial_inplace */ | |
| 1279 | 0, /* src_mask */ | |
| 1280 | 0xfffc, /* dst_mask */ | |
| 1281 | FALSE), /* pcrel_offset */ | |
| 1282 | ||
| 1283 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1284 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1285 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1286 | 0, /* rightshift */ | |
| 1287 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1288 | 16, /* bitsize */ | |
| 1289 | FALSE, /* pc_relative */ | |
| 1290 | 0, /* bitpos */ | |
| 1291 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1292 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1293 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1294 | FALSE, /* partial_inplace */ | |
| 1295 | 0, /* src_mask */ | |
| 1296 | 0xfffc, /* dst_mask */ | |
| 1297 | FALSE), /* pcrel_offset */ | |
| 1298 | ||
| 727fc41e | 1299 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1300 | HOWTO (R_PPC64_TLS, |
| 1301 | 0, /* rightshift */ | |
| 1302 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1303 | 32, /* bitsize */ | |
| 1304 | FALSE, /* pc_relative */ | |
| 1305 | 0, /* bitpos */ | |
| 1306 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1307 | bfd_elf_generic_reloc, /* special_function */ | |
| 1308 | "R_PPC64_TLS", /* name */ | |
| 1309 | FALSE, /* partial_inplace */ | |
| 1310 | 0, /* src_mask */ | |
| 1311 | 0, /* dst_mask */ | |
| 1312 | FALSE), /* pcrel_offset */ | |
| 1313 | ||
| 727fc41e AM |
1314 | HOWTO (R_PPC64_TLSGD, |
| 1315 | 0, /* rightshift */ | |
| 1316 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1317 | 32, /* bitsize */ | |
| 1318 | FALSE, /* pc_relative */ | |
| 1319 | 0, /* bitpos */ | |
| 1320 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1321 | bfd_elf_generic_reloc, /* special_function */ | |
| 1322 | "R_PPC64_TLSGD", /* name */ | |
| 1323 | FALSE, /* partial_inplace */ | |
| 1324 | 0, /* src_mask */ | |
| 1325 | 0, /* dst_mask */ | |
| 1326 | FALSE), /* pcrel_offset */ | |
| 1327 | ||
| 1328 | HOWTO (R_PPC64_TLSLD, | |
| 1329 | 0, /* rightshift */ | |
| 1330 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1331 | 32, /* bitsize */ | |
| 1332 | FALSE, /* pc_relative */ | |
| 1333 | 0, /* bitpos */ | |
| 1334 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1335 | bfd_elf_generic_reloc, /* special_function */ | |
| 1336 | "R_PPC64_TLSLD", /* name */ | |
| 1337 | FALSE, /* partial_inplace */ | |
| 1338 | 0, /* src_mask */ | |
| 1339 | 0, /* dst_mask */ | |
| 1340 | FALSE), /* pcrel_offset */ | |
| 1341 | ||
| 3b421ab3 AM |
1342 | HOWTO (R_PPC64_TOCSAVE, |
| 1343 | 0, /* rightshift */ | |
| 1344 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1345 | 32, /* bitsize */ | |
| 1346 | FALSE, /* pc_relative */ | |
| 1347 | 0, /* bitpos */ | |
| 1348 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1349 | bfd_elf_generic_reloc, /* special_function */ | |
| 1350 | "R_PPC64_TOCSAVE", /* name */ | |
| 1351 | FALSE, /* partial_inplace */ | |
| 1352 | 0, /* src_mask */ | |
| 1353 | 0, /* dst_mask */ | |
| 1354 | FALSE), /* pcrel_offset */ | |
| 1355 | ||
| 411e1bfb AM |
1356 | /* Computes the load module index of the load module that contains the |
| 1357 | definition of its TLS sym. */ | |
| 1358 | HOWTO (R_PPC64_DTPMOD64, | |
| 1359 | 0, /* rightshift */ | |
| 1360 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1361 | 64, /* bitsize */ | |
| 1362 | FALSE, /* pc_relative */ | |
| 1363 | 0, /* bitpos */ | |
| 1364 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1365 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1366 | "R_PPC64_DTPMOD64", /* name */ | |
| 1367 | FALSE, /* partial_inplace */ | |
| 1368 | 0, /* src_mask */ | |
| 1369 | ONES (64), /* dst_mask */ | |
| 1370 | FALSE), /* pcrel_offset */ | |
| 1371 | ||
| 1372 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1373 | of sym+add and the base address of the thread-local storage block that | |
| 1374 | contains the definition of sym, minus 0x8000. */ | |
| 1375 | HOWTO (R_PPC64_DTPREL64, | |
| 1376 | 0, /* rightshift */ | |
| 1377 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1378 | 64, /* bitsize */ | |
| 1379 | FALSE, /* pc_relative */ | |
| 1380 | 0, /* bitpos */ | |
| 1381 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1382 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1383 | "R_PPC64_DTPREL64", /* name */ | |
| 1384 | FALSE, /* partial_inplace */ | |
| 1385 | 0, /* src_mask */ | |
| 1386 | ONES (64), /* dst_mask */ | |
| 1387 | FALSE), /* pcrel_offset */ | |
| 1388 | ||
| 1389 | /* A 16 bit dtprel reloc. */ | |
| 1390 | HOWTO (R_PPC64_DTPREL16, | |
| 1391 | 0, /* rightshift */ | |
| 1392 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1393 | 16, /* bitsize */ | |
| 1394 | FALSE, /* pc_relative */ | |
| 1395 | 0, /* bitpos */ | |
| 1396 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1397 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1398 | "R_PPC64_DTPREL16", /* name */ | |
| 1399 | FALSE, /* partial_inplace */ | |
| 1400 | 0, /* src_mask */ | |
| 1401 | 0xffff, /* dst_mask */ | |
| 1402 | FALSE), /* pcrel_offset */ | |
| 1403 | ||
| 1404 | /* Like DTPREL16, but no overflow. */ | |
| 1405 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1406 | 0, /* rightshift */ | |
| 1407 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1408 | 16, /* bitsize */ | |
| 1409 | FALSE, /* pc_relative */ | |
| 1410 | 0, /* bitpos */ | |
| 1411 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1412 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1413 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1414 | FALSE, /* partial_inplace */ | |
| 1415 | 0, /* src_mask */ | |
| 1416 | 0xffff, /* dst_mask */ | |
| 1417 | FALSE), /* pcrel_offset */ | |
| 1418 | ||
| 1419 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1420 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1421 | 16, /* rightshift */ | |
| 1422 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1423 | 16, /* bitsize */ | |
| 1424 | FALSE, /* pc_relative */ | |
| 1425 | 0, /* bitpos */ | |
| f9c6b907 | 1426 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1427 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1428 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1429 | FALSE, /* partial_inplace */ | |
| 1430 | 0, /* src_mask */ | |
| 1431 | 0xffff, /* dst_mask */ | |
| 1432 | FALSE), /* pcrel_offset */ | |
| 1433 | ||
| 1434 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1435 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1436 | 16, /* rightshift */ | |
| 1437 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1438 | 16, /* bitsize */ | |
| 1439 | FALSE, /* pc_relative */ | |
| 1440 | 0, /* bitpos */ | |
| f9c6b907 | 1441 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1442 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1443 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1444 | FALSE, /* partial_inplace */ | |
| 1445 | 0, /* src_mask */ | |
| 1446 | 0xffff, /* dst_mask */ | |
| 1447 | FALSE), /* pcrel_offset */ | |
| 1448 | ||
| 1449 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1450 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1451 | 32, /* rightshift */ | |
| 1452 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1453 | 16, /* bitsize */ | |
| 1454 | FALSE, /* pc_relative */ | |
| 1455 | 0, /* bitpos */ | |
| 1456 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1457 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1458 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1459 | FALSE, /* partial_inplace */ | |
| 1460 | 0, /* src_mask */ | |
| 1461 | 0xffff, /* dst_mask */ | |
| 1462 | FALSE), /* pcrel_offset */ | |
| 1463 | ||
| 1464 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1465 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1466 | 32, /* rightshift */ | |
| 1467 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1468 | 16, /* bitsize */ | |
| 1469 | FALSE, /* pc_relative */ | |
| 1470 | 0, /* bitpos */ | |
| 1471 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1472 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1473 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1474 | FALSE, /* partial_inplace */ | |
| 1475 | 0, /* src_mask */ | |
| 1476 | 0xffff, /* dst_mask */ | |
| 1477 | FALSE), /* pcrel_offset */ | |
| 1478 | ||
| 1479 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1480 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1481 | 48, /* rightshift */ | |
| 1482 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1483 | 16, /* bitsize */ | |
| 1484 | FALSE, /* pc_relative */ | |
| 1485 | 0, /* bitpos */ | |
| 1486 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1487 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1488 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1489 | FALSE, /* partial_inplace */ | |
| 1490 | 0, /* src_mask */ | |
| 1491 | 0xffff, /* dst_mask */ | |
| 1492 | FALSE), /* pcrel_offset */ | |
| 1493 | ||
| 1494 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1495 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1496 | 48, /* rightshift */ | |
| 1497 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1498 | 16, /* bitsize */ | |
| 1499 | FALSE, /* pc_relative */ | |
| 1500 | 0, /* bitpos */ | |
| 1501 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1502 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1503 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1504 | FALSE, /* partial_inplace */ | |
| 1505 | 0, /* src_mask */ | |
| 1506 | 0xffff, /* dst_mask */ | |
| 1507 | FALSE), /* pcrel_offset */ | |
| 1508 | ||
| 1509 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1510 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1511 | 0, /* rightshift */ | |
| 1512 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1513 | 16, /* bitsize */ | |
| 1514 | FALSE, /* pc_relative */ | |
| 1515 | 0, /* bitpos */ | |
| 1516 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1517 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1518 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1519 | FALSE, /* partial_inplace */ | |
| 1520 | 0, /* src_mask */ | |
| 1521 | 0xfffc, /* dst_mask */ | |
| 1522 | FALSE), /* pcrel_offset */ | |
| 1523 | ||
| 1524 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1525 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1526 | 0, /* rightshift */ | |
| 1527 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1528 | 16, /* bitsize */ | |
| 1529 | FALSE, /* pc_relative */ | |
| 1530 | 0, /* bitpos */ | |
| 1531 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1532 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1533 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1534 | FALSE, /* partial_inplace */ | |
| 1535 | 0, /* src_mask */ | |
| 1536 | 0xfffc, /* dst_mask */ | |
| 1537 | FALSE), /* pcrel_offset */ | |
| 1538 | ||
| 1539 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1540 | sym+add and the value of the thread pointer (r13). */ | |
| 1541 | HOWTO (R_PPC64_TPREL64, | |
| 1542 | 0, /* rightshift */ | |
| 1543 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1544 | 64, /* bitsize */ | |
| 1545 | FALSE, /* pc_relative */ | |
| 1546 | 0, /* bitpos */ | |
| 1547 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1548 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1549 | "R_PPC64_TPREL64", /* name */ | |
| 1550 | FALSE, /* partial_inplace */ | |
| 1551 | 0, /* src_mask */ | |
| 1552 | ONES (64), /* dst_mask */ | |
| 1553 | FALSE), /* pcrel_offset */ | |
| 1554 | ||
| 1555 | /* A 16 bit tprel reloc. */ | |
| 1556 | HOWTO (R_PPC64_TPREL16, | |
| 1557 | 0, /* rightshift */ | |
| 1558 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1559 | 16, /* bitsize */ | |
| 1560 | FALSE, /* pc_relative */ | |
| 1561 | 0, /* bitpos */ | |
| 1562 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1563 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1564 | "R_PPC64_TPREL16", /* name */ | |
| 1565 | FALSE, /* partial_inplace */ | |
| 1566 | 0, /* src_mask */ | |
| 1567 | 0xffff, /* dst_mask */ | |
| 1568 | FALSE), /* pcrel_offset */ | |
| 1569 | ||
| 1570 | /* Like TPREL16, but no overflow. */ | |
| 1571 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1572 | 0, /* rightshift */ | |
| 1573 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1574 | 16, /* bitsize */ | |
| 1575 | FALSE, /* pc_relative */ | |
| 1576 | 0, /* bitpos */ | |
| 1577 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1578 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1579 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1580 | FALSE, /* partial_inplace */ | |
| 1581 | 0, /* src_mask */ | |
| 1582 | 0xffff, /* dst_mask */ | |
| 1583 | FALSE), /* pcrel_offset */ | |
| 1584 | ||
| 1585 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1586 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1587 | 16, /* rightshift */ | |
| 1588 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1589 | 16, /* bitsize */ | |
| 1590 | FALSE, /* pc_relative */ | |
| 1591 | 0, /* bitpos */ | |
| f9c6b907 | 1592 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1593 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1594 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1595 | FALSE, /* partial_inplace */ | |
| 1596 | 0, /* src_mask */ | |
| 1597 | 0xffff, /* dst_mask */ | |
| 1598 | FALSE), /* pcrel_offset */ | |
| 1599 | ||
| 1600 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1601 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1602 | 16, /* rightshift */ | |
| 1603 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1604 | 16, /* bitsize */ | |
| 1605 | FALSE, /* pc_relative */ | |
| 1606 | 0, /* bitpos */ | |
| f9c6b907 | 1607 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1608 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1609 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1610 | FALSE, /* partial_inplace */ | |
| 1611 | 0, /* src_mask */ | |
| 1612 | 0xffff, /* dst_mask */ | |
| 1613 | FALSE), /* pcrel_offset */ | |
| 1614 | ||
| 1615 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1616 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1617 | 32, /* rightshift */ | |
| 1618 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1619 | 16, /* bitsize */ | |
| 1620 | FALSE, /* pc_relative */ | |
| 1621 | 0, /* bitpos */ | |
| 1622 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1623 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1624 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1625 | FALSE, /* partial_inplace */ | |
| 1626 | 0, /* src_mask */ | |
| 1627 | 0xffff, /* dst_mask */ | |
| 1628 | FALSE), /* pcrel_offset */ | |
| 1629 | ||
| 1630 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1631 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1632 | 32, /* rightshift */ | |
| 1633 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1634 | 16, /* bitsize */ | |
| 1635 | FALSE, /* pc_relative */ | |
| 1636 | 0, /* bitpos */ | |
| 1637 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1638 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1639 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1640 | FALSE, /* partial_inplace */ | |
| 1641 | 0, /* src_mask */ | |
| 1642 | 0xffff, /* dst_mask */ | |
| 1643 | FALSE), /* pcrel_offset */ | |
| 1644 | ||
| 1645 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1646 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1647 | 48, /* rightshift */ | |
| 1648 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1649 | 16, /* bitsize */ | |
| 1650 | FALSE, /* pc_relative */ | |
| 1651 | 0, /* bitpos */ | |
| 1652 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1653 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1654 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1655 | FALSE, /* partial_inplace */ | |
| 1656 | 0, /* src_mask */ | |
| 1657 | 0xffff, /* dst_mask */ | |
| 1658 | FALSE), /* pcrel_offset */ | |
| 1659 | ||
| 1660 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1661 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1662 | 48, /* rightshift */ | |
| 1663 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1664 | 16, /* bitsize */ | |
| 1665 | FALSE, /* pc_relative */ | |
| 1666 | 0, /* bitpos */ | |
| 1667 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1668 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1669 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1670 | FALSE, /* partial_inplace */ | |
| 1671 | 0, /* src_mask */ | |
| 1672 | 0xffff, /* dst_mask */ | |
| 1673 | FALSE), /* pcrel_offset */ | |
| 1674 | ||
| 1675 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1676 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1677 | 0, /* rightshift */ | |
| 1678 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1679 | 16, /* bitsize */ | |
| 1680 | FALSE, /* pc_relative */ | |
| 1681 | 0, /* bitpos */ | |
| 1682 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1683 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1684 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1685 | FALSE, /* partial_inplace */ | |
| 1686 | 0, /* src_mask */ | |
| 1687 | 0xfffc, /* dst_mask */ | |
| 1688 | FALSE), /* pcrel_offset */ | |
| 1689 | ||
| 1690 | /* Like TPREL16_DS, but no overflow. */ | |
| 1691 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1692 | 0, /* rightshift */ | |
| 1693 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1694 | 16, /* bitsize */ | |
| 1695 | FALSE, /* pc_relative */ | |
| 1696 | 0, /* bitpos */ | |
| 1697 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1698 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1699 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1700 | FALSE, /* partial_inplace */ | |
| 1701 | 0, /* src_mask */ | |
| 1702 | 0xfffc, /* dst_mask */ | |
| 1703 | FALSE), /* pcrel_offset */ | |
| 1704 | ||
| 1705 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1706 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1707 | to the first entry relative to the TOC base (r2). */ | |
| 1708 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1709 | 0, /* rightshift */ | |
| 1710 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1711 | 16, /* bitsize */ | |
| 1712 | FALSE, /* pc_relative */ | |
| 1713 | 0, /* bitpos */ | |
| 1714 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1715 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1716 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1717 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1718 | 0, /* src_mask */ |
| 1719 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1720 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1721 | |
| 411e1bfb AM |
1722 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1723 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1724 | 0, /* rightshift */ |
| 1725 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1726 | 16, /* bitsize */ | |
| b34976b6 | 1727 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1728 | 0, /* bitpos */ |
| 1729 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1730 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1731 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1732 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1733 | 0, /* src_mask */ |
| 1734 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1735 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1736 | |
| 411e1bfb AM |
1737 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1738 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1739 | 16, /* rightshift */ |
| 1740 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1741 | 16, /* bitsize */ | |
| b34976b6 | 1742 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1743 | 0, /* bitpos */ |
| f9c6b907 | 1744 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1745 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1746 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1747 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1748 | 0, /* src_mask */ |
| 1749 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1750 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1751 | |
| 411e1bfb AM |
1752 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1753 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1754 | 16, /* rightshift */ |
| 1755 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1756 | 16, /* bitsize */ | |
| b34976b6 | 1757 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1758 | 0, /* bitpos */ |
| f9c6b907 | 1759 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1760 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1761 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1762 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1763 | 0, /* src_mask */ |
| 1764 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1765 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1766 | |
| 411e1bfb AM |
1767 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1768 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1769 | first entry relative to the TOC base (r2). */ | |
| 1770 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1771 | 0, /* rightshift */ |
| 1772 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1773 | 16, /* bitsize */ | |
| b34976b6 | 1774 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1775 | 0, /* bitpos */ |
| 411e1bfb AM |
1776 | complain_overflow_signed, /* complain_on_overflow */ |
| 1777 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1778 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1779 | FALSE, /* partial_inplace */ |
| d006db6c | 1780 | 0, /* src_mask */ |
| 411e1bfb | 1781 | 0xffff, /* dst_mask */ |
| b34976b6 | 1782 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1783 | |
| 411e1bfb AM |
1784 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1785 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1786 | 0, /* rightshift */ |
| 1787 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1788 | 16, /* bitsize */ | |
| b34976b6 | 1789 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1790 | 0, /* bitpos */ |
| 411e1bfb AM |
1791 | complain_overflow_dont, /* complain_on_overflow */ |
| 1792 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1793 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1794 | FALSE, /* partial_inplace */ |
| d006db6c | 1795 | 0, /* src_mask */ |
| 411e1bfb | 1796 | 0xffff, /* dst_mask */ |
| b34976b6 | 1797 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1798 | |
| 411e1bfb AM |
1799 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1800 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1801 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1802 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1803 | 16, /* bitsize */ | |
| b34976b6 | 1804 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1805 | 0, /* bitpos */ |
| f9c6b907 | 1806 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1807 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1808 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1809 | FALSE, /* partial_inplace */ |
| d006db6c | 1810 | 0, /* src_mask */ |
| 411e1bfb | 1811 | 0xffff, /* dst_mask */ |
| b34976b6 | 1812 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1813 | |
| 411e1bfb AM |
1814 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1815 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1816 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1817 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1818 | 16, /* bitsize */ | |
| b34976b6 | 1819 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1820 | 0, /* bitpos */ |
| f9c6b907 | 1821 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1822 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1823 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1824 | FALSE, /* partial_inplace */ |
| d006db6c | 1825 | 0, /* src_mask */ |
| 411e1bfb | 1826 | 0xffff, /* dst_mask */ |
| b34976b6 | 1827 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1828 | |
| 411e1bfb AM |
1829 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1830 | the offset to the entry relative to the TOC base (r2). */ | |
| 1831 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1832 | 0, /* rightshift */ |
| 1833 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1834 | 16, /* bitsize */ | |
| b34976b6 | 1835 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1836 | 0, /* bitpos */ |
| 411e1bfb | 1837 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1838 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1839 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1840 | FALSE, /* partial_inplace */ |
| d006db6c | 1841 | 0, /* src_mask */ |
| 5bd4f169 | 1842 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1843 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1844 | |
| 411e1bfb AM |
1845 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1846 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1847 | 0, /* rightshift */ |
| c061c2d8 AM |
1848 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1849 | 16, /* bitsize */ | |
| b34976b6 | 1850 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1851 | 0, /* bitpos */ |
| 411e1bfb AM |
1852 | complain_overflow_dont, /* complain_on_overflow */ |
| 1853 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1854 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1855 | FALSE, /* partial_inplace */ |
| d006db6c | 1856 | 0, /* src_mask */ |
| c061c2d8 | 1857 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1858 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1859 | |
| 411e1bfb AM |
1860 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1861 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1862 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1863 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1864 | 16, /* bitsize */ | |
| b34976b6 | 1865 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1866 | 0, /* bitpos */ |
| f9c6b907 | 1867 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1868 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1869 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1870 | FALSE, /* partial_inplace */ |
| d006db6c | 1871 | 0, /* src_mask */ |
| 411e1bfb | 1872 | 0xffff, /* dst_mask */ |
| b34976b6 | 1873 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1874 | |
| 411e1bfb AM |
1875 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1876 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1877 | 16, /* rightshift */ | |
| 1878 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1879 | 16, /* bitsize */ | |
| 1880 | FALSE, /* pc_relative */ | |
| 1881 | 0, /* bitpos */ | |
| f9c6b907 | 1882 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1883 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1884 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1885 | FALSE, /* partial_inplace */ | |
| 1886 | 0, /* src_mask */ | |
| 1887 | 0xffff, /* dst_mask */ | |
| 1888 | FALSE), /* pcrel_offset */ | |
| 1889 | ||
| 1890 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1891 | offset to the entry relative to the TOC base (r2). */ | |
| 1892 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1893 | 0, /* rightshift */ |
| 1894 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1895 | 16, /* bitsize */ | |
| b34976b6 | 1896 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1897 | 0, /* bitpos */ |
| 1898 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1899 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1900 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1901 | FALSE, /* partial_inplace */ |
| d006db6c | 1902 | 0, /* src_mask */ |
| ad8e1ba5 | 1903 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1904 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1905 | |
| 411e1bfb AM |
1906 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1907 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1908 | 0, /* rightshift */ |
| 1909 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1910 | 16, /* bitsize */ | |
| b34976b6 | 1911 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1912 | 0, /* bitpos */ |
| 1913 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1914 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1915 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1916 | FALSE, /* partial_inplace */ |
| d006db6c | 1917 | 0, /* src_mask */ |
| ad8e1ba5 | 1918 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1919 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1920 | |
| 411e1bfb AM |
1921 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1922 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1923 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1924 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1925 | 16, /* bitsize */ | |
| b34976b6 | 1926 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1927 | 0, /* bitpos */ |
| f9c6b907 | 1928 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1929 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1930 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1931 | FALSE, /* partial_inplace */ |
| d006db6c | 1932 | 0, /* src_mask */ |
| 411e1bfb | 1933 | 0xffff, /* dst_mask */ |
| b34976b6 | 1934 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1935 | |
| 411e1bfb AM |
1936 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1937 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1938 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1939 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1940 | 16, /* bitsize */ | |
| b34976b6 | 1941 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1942 | 0, /* bitpos */ |
| f9c6b907 | 1943 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1944 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1945 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1946 | FALSE, /* partial_inplace */ |
| d006db6c | 1947 | 0, /* src_mask */ |
| 411e1bfb | 1948 | 0xffff, /* dst_mask */ |
| b34976b6 | 1949 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1950 | |
| 25f23106 AM |
1951 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1952 | 0, /* rightshift */ | |
| 1953 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1954 | 0, /* bitsize */ | |
| 1955 | FALSE, /* pc_relative */ | |
| 1956 | 0, /* bitpos */ | |
| 1957 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1958 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1959 | "R_PPC64_JMP_IREL", /* name */ | |
| 1960 | FALSE, /* partial_inplace */ | |
| 1961 | 0, /* src_mask */ | |
| 1962 | 0, /* dst_mask */ | |
| 1963 | FALSE), /* pcrel_offset */ | |
| 1964 | ||
| e054468f AM |
1965 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1966 | 0, /* rightshift */ | |
| 1967 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1968 | 64, /* bitsize */ | |
| 1969 | FALSE, /* pc_relative */ | |
| 1970 | 0, /* bitpos */ | |
| 1971 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1972 | bfd_elf_generic_reloc, /* special_function */ | |
| 1973 | "R_PPC64_IRELATIVE", /* name */ | |
| 1974 | FALSE, /* partial_inplace */ | |
| 1975 | 0, /* src_mask */ | |
| 1976 | ONES (64), /* dst_mask */ | |
| 1977 | FALSE), /* pcrel_offset */ | |
| 1978 | ||
| 25f23106 AM |
1979 | /* A 16 bit relative relocation. */ |
| 1980 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1981 | 0, /* rightshift */ | |
| 1982 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1983 | 16, /* bitsize */ | |
| 1984 | TRUE, /* pc_relative */ | |
| 1985 | 0, /* bitpos */ | |
| b80eed39 | 1986 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1987 | bfd_elf_generic_reloc, /* special_function */ |
| 1988 | "R_PPC64_REL16", /* name */ | |
| 1989 | FALSE, /* partial_inplace */ | |
| 1990 | 0, /* src_mask */ | |
| 1991 | 0xffff, /* dst_mask */ | |
| 1992 | TRUE), /* pcrel_offset */ | |
| 1993 | ||
| 1994 | /* A 16 bit relative relocation without overflow. */ | |
| 1995 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1996 | 0, /* rightshift */ | |
| 1997 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1998 | 16, /* bitsize */ | |
| 1999 | TRUE, /* pc_relative */ | |
| 2000 | 0, /* bitpos */ | |
| 2001 | complain_overflow_dont,/* complain_on_overflow */ | |
| 2002 | bfd_elf_generic_reloc, /* special_function */ | |
| 2003 | "R_PPC64_REL16_LO", /* name */ | |
| 2004 | FALSE, /* partial_inplace */ | |
| 2005 | 0, /* src_mask */ | |
| 2006 | 0xffff, /* dst_mask */ | |
| 2007 | TRUE), /* pcrel_offset */ | |
| 2008 | ||
| 2009 | /* The high order 16 bits of a relative address. */ | |
| 2010 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2011 | 16, /* rightshift */ | |
| 2012 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2013 | 16, /* bitsize */ | |
| 2014 | TRUE, /* pc_relative */ | |
| 2015 | 0, /* bitpos */ | |
| f9c6b907 | 2016 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2017 | bfd_elf_generic_reloc, /* special_function */ |
| 2018 | "R_PPC64_REL16_HI", /* name */ | |
| 2019 | FALSE, /* partial_inplace */ | |
| 2020 | 0, /* src_mask */ | |
| 2021 | 0xffff, /* dst_mask */ | |
| 2022 | TRUE), /* pcrel_offset */ | |
| 2023 | ||
| 2024 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2025 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2026 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2027 | 16, /* rightshift */ | |
| 2028 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2029 | 16, /* bitsize */ | |
| 2030 | TRUE, /* pc_relative */ | |
| 2031 | 0, /* bitpos */ | |
| f9c6b907 | 2032 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2033 | ppc64_elf_ha_reloc, /* special_function */ |
| 2034 | "R_PPC64_REL16_HA", /* name */ | |
| 2035 | FALSE, /* partial_inplace */ | |
| 2036 | 0, /* src_mask */ | |
| 2037 | 0xffff, /* dst_mask */ | |
| 2038 | TRUE), /* pcrel_offset */ | |
| 2039 | ||
| a680de9a PB |
2040 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2041 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2042 | 16, /* rightshift */ | |
| 2043 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2044 | 16, /* bitsize */ | |
| 2045 | TRUE, /* pc_relative */ | |
| 2046 | 0, /* bitpos */ | |
| 2047 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2048 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2049 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2050 | FALSE, /* partial_inplace */ | |
| 2051 | 0, /* src_mask */ | |
| 2052 | 0x1fffc1, /* dst_mask */ | |
| 2053 | TRUE), /* pcrel_offset */ | |
| 2054 | ||
| 7ba71655 AM |
2055 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2056 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2057 | 16, /* rightshift */ | |
| 2058 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2059 | 16, /* bitsize */ | |
| 2060 | FALSE, /* pc_relative */ | |
| 2061 | 0, /* bitpos */ | |
| 2062 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2063 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2064 | "R_PPC64_16DX_HA", /* name */ | |
| 2065 | FALSE, /* partial_inplace */ | |
| 2066 | 0, /* src_mask */ | |
| 2067 | 0x1fffc1, /* dst_mask */ | |
| 2068 | FALSE), /* pcrel_offset */ | |
| 2069 | ||
| f9c6b907 AM |
2070 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2071 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2072 | 16, /* rightshift */ | |
| 2073 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2074 | 16, /* bitsize */ | |
| 2075 | FALSE, /* pc_relative */ | |
| 2076 | 0, /* bitpos */ | |
| 2077 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2078 | bfd_elf_generic_reloc, /* special_function */ | |
| 2079 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2080 | FALSE, /* partial_inplace */ | |
| 2081 | 0, /* src_mask */ | |
| 2082 | 0xffff, /* dst_mask */ | |
| 2083 | FALSE), /* pcrel_offset */ | |
| 2084 | ||
| 2085 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2086 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2087 | 16, /* rightshift */ | |
| 2088 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2089 | 16, /* bitsize */ | |
| 2090 | FALSE, /* pc_relative */ | |
| 2091 | 0, /* bitpos */ | |
| 2092 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2093 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2094 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2095 | FALSE, /* partial_inplace */ | |
| 2096 | 0, /* src_mask */ | |
| 2097 | 0xffff, /* dst_mask */ | |
| 2098 | FALSE), /* pcrel_offset */ | |
| 2099 | ||
| 2100 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2101 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2102 | 16, /* rightshift */ | |
| 2103 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2104 | 16, /* bitsize */ | |
| 2105 | FALSE, /* pc_relative */ | |
| 2106 | 0, /* bitpos */ | |
| 2107 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2108 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2109 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2110 | FALSE, /* partial_inplace */ | |
| 2111 | 0, /* src_mask */ | |
| 2112 | 0xffff, /* dst_mask */ | |
| 2113 | FALSE), /* pcrel_offset */ | |
| 2114 | ||
| 2115 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2116 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2117 | 16, /* rightshift */ | |
| 2118 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2119 | 16, /* bitsize */ | |
| 2120 | FALSE, /* pc_relative */ | |
| 2121 | 0, /* bitpos */ | |
| 2122 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2123 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2124 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2125 | FALSE, /* partial_inplace */ | |
| 2126 | 0, /* src_mask */ | |
| 2127 | 0xffff, /* dst_mask */ | |
| 2128 | FALSE), /* pcrel_offset */ | |
| 2129 | ||
| 2130 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2131 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2132 | 16, /* rightshift */ | |
| 2133 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2134 | 16, /* bitsize */ | |
| 2135 | FALSE, /* pc_relative */ | |
| 2136 | 0, /* bitpos */ | |
| 2137 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2138 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2139 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2140 | FALSE, /* partial_inplace */ | |
| 2141 | 0, /* src_mask */ | |
| 2142 | 0xffff, /* dst_mask */ | |
| 2143 | FALSE), /* pcrel_offset */ | |
| 2144 | ||
| 2145 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2146 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2147 | 16, /* rightshift */ | |
| 2148 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2149 | 16, /* bitsize */ | |
| 2150 | FALSE, /* pc_relative */ | |
| 2151 | 0, /* bitpos */ | |
| 2152 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2153 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2154 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2155 | FALSE, /* partial_inplace */ | |
| 2156 | 0, /* src_mask */ | |
| 2157 | 0xffff, /* dst_mask */ | |
| 2158 | FALSE), /* pcrel_offset */ | |
| 2159 | ||
| 006589cf AM |
2160 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2161 | HOWTO (R_PPC64_ENTRY, | |
| 2162 | 0, /* rightshift */ | |
| 2163 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2164 | 32, /* bitsize */ | |
| 2165 | FALSE, /* pc_relative */ | |
| 2166 | 0, /* bitpos */ | |
| 2167 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2168 | bfd_elf_generic_reloc, /* special_function */ | |
| 2169 | "R_PPC64_ENTRY", /* name */ | |
| 2170 | FALSE, /* partial_inplace */ | |
| 2171 | 0, /* src_mask */ | |
| 2172 | 0, /* dst_mask */ | |
| 2173 | FALSE), /* pcrel_offset */ | |
| 2174 | ||
| 45965137 AM |
2175 | /* Like ADDR64, but use local entry point of function. */ |
| 2176 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2177 | 0, /* rightshift */ | |
| 2178 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2179 | 64, /* bitsize */ | |
| 2180 | FALSE, /* pc_relative */ | |
| 2181 | 0, /* bitpos */ | |
| 2182 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2183 | bfd_elf_generic_reloc, /* special_function */ | |
| 2184 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2185 | FALSE, /* partial_inplace */ | |
| 2186 | 0, /* src_mask */ | |
| 2187 | ONES (64), /* dst_mask */ | |
| 2188 | FALSE), /* pcrel_offset */ | |
| 2189 | ||
| 5bd4f169 AM |
2190 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2191 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2192 | 0, /* rightshift */ | |
| 2193 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2194 | 0, /* bitsize */ | |
| b34976b6 | 2195 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2196 | 0, /* bitpos */ |
| 2197 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2198 | NULL, /* special_function */ | |
| 2199 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2200 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2201 | 0, /* src_mask */ |
| 2202 | 0, /* dst_mask */ | |
| b34976b6 | 2203 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2204 | |
| 2205 | /* GNU extension to record C++ vtable member usage. */ | |
| 2206 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2207 | 0, /* rightshift */ | |
| 2208 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2209 | 0, /* bitsize */ | |
| b34976b6 | 2210 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2211 | 0, /* bitpos */ |
| 2212 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2213 | NULL, /* special_function */ | |
| 2214 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2215 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2216 | 0, /* src_mask */ |
| 2217 | 0, /* dst_mask */ | |
| b34976b6 | 2218 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2219 | }; |
| 2220 | ||
| 2221 | \f | |
| 2222 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2223 | be done. */ | |
| 2224 | ||
| 2225 | static void | |
| 4ce794b7 | 2226 | ppc_howto_init (void) |
| 5bd4f169 AM |
2227 | { |
| 2228 | unsigned int i, type; | |
| 2229 | ||
| a4b6fadd | 2230 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2231 | { |
| 2232 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2233 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2234 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2235 | } | |
| 2236 | } | |
| 2237 | ||
| 2238 | static reloc_howto_type * | |
| 4ce794b7 AM |
2239 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2240 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2241 | { |
| 411e1bfb | 2242 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2243 | |
| 2244 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2245 | /* Initialize howto table if needed. */ | |
| 2246 | ppc_howto_init (); | |
| 2247 | ||
| 4ce794b7 | 2248 | switch (code) |
| 5bd4f169 AM |
2249 | { |
| 2250 | default: | |
| 4ce794b7 | 2251 | return NULL; |
| 5bd4f169 | 2252 | |
| 411e1bfb AM |
2253 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2254 | break; | |
| 2255 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2256 | break; | |
| 2257 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2258 | break; | |
| 2259 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2260 | break; | |
| 2261 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2262 | break; | |
| 2263 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2264 | break; | |
| f9c6b907 AM |
2265 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2266 | break; | |
| 411e1bfb | 2267 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2268 | break; |
| f9c6b907 AM |
2269 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2270 | break; | |
| 411e1bfb | 2271 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2284 | break; |
| 411e1bfb | 2285 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2286 | break; |
| 411e1bfb | 2287 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2288 | break; |
| 411e1bfb | 2289 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2296 | break; |
| 411e1bfb | 2297 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2298 | break; |
| 411e1bfb | 2299 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2300 | break; |
| 411e1bfb | 2301 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2302 | break; |
| 411e1bfb | 2303 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2316 | break; |
| 411e1bfb | 2317 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2318 | break; |
| 411e1bfb | 2319 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2320 | break; |
| 411e1bfb | 2321 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2328 | break; |
| 411e1bfb | 2329 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2330 | break; |
| 411e1bfb | 2331 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2332 | break; |
| 411e1bfb | 2333 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2334 | break; |
| 411e1bfb | 2335 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb | 2337 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2338 | break; |
| 411e1bfb | 2339 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2340 | break; |
| 411e1bfb | 2341 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2342 | break; |
| 411e1bfb | 2343 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2344 | break; |
| 411e1bfb | 2345 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2346 | break; |
| 411e1bfb | 2347 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2348 | break; |
| 411e1bfb | 2349 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2350 | break; |
| 411e1bfb | 2351 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2352 | break; |
| 411e1bfb | 2353 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2354 | break; |
| 411e1bfb | 2355 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2356 | break; |
| 411e1bfb | 2357 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2358 | break; |
| 411e1bfb | 2359 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2360 | break; |
| 411e1bfb | 2361 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2362 | break; |
| 411e1bfb | 2363 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2364 | break; |
| 411e1bfb | 2365 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2366 | break; |
| 411e1bfb | 2367 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2368 | break; |
| 411e1bfb | 2369 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2370 | break; |
| 411e1bfb | 2371 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2372 | break; |
| 411e1bfb | 2373 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2374 | break; |
| 411e1bfb | 2375 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2376 | break; |
| 727fc41e AM |
2377 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2378 | break; | |
| 2379 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2380 | break; | |
| 411e1bfb | 2381 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2382 | break; |
| 411e1bfb | 2383 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2384 | break; |
| 411e1bfb | 2385 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2386 | break; |
| 411e1bfb | 2387 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2388 | break; |
| f9c6b907 AM |
2389 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2390 | break; | |
| 411e1bfb | 2391 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2392 | break; |
| f9c6b907 AM |
2393 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2394 | break; | |
| 411e1bfb | 2395 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2396 | break; |
| 411e1bfb AM |
2397 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2398 | break; | |
| 2399 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2400 | break; | |
| 2401 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2402 | break; | |
| f9c6b907 AM |
2403 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2404 | break; | |
| 411e1bfb AM |
2405 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2406 | break; | |
| f9c6b907 AM |
2407 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2408 | break; | |
| 411e1bfb AM |
2409 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2410 | break; | |
| 2411 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2412 | break; | |
| 2413 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2414 | break; | |
| 2415 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2416 | break; | |
| 2417 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2418 | break; | |
| 2419 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2420 | break; | |
| 2421 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2422 | break; | |
| 2423 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2424 | break; | |
| 2425 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2426 | break; | |
| 2427 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2428 | break; | |
| 2429 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2430 | break; | |
| 2431 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2432 | break; | |
| 2433 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2434 | break; | |
| 2435 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2436 | break; | |
| 2437 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2438 | break; | |
| 2439 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2440 | break; | |
| 2441 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2442 | break; | |
| 2443 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2444 | break; | |
| 2445 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2446 | break; | |
| 2447 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2448 | break; | |
| 2449 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2450 | break; | |
| 2451 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2452 | break; | |
| 2453 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2454 | break; | |
| 2455 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2456 | break; | |
| 2457 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2458 | break; | |
| 2459 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2460 | break; | |
| 2461 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2462 | break; | |
| 2463 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2464 | break; | |
| 2465 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2466 | break; | |
| 25f23106 AM |
2467 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2468 | break; | |
| 2469 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2470 | break; | |
| 2471 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2472 | break; | |
| 2473 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2474 | break; | |
| 7ba71655 AM |
2475 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2476 | break; | |
| a680de9a PB |
2477 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2478 | break; | |
| 006589cf AM |
2479 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2480 | break; | |
| 45965137 AM |
2481 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2482 | break; | |
| 411e1bfb AM |
2483 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2484 | break; | |
| 2485 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2486 | break; |
| 2487 | } | |
| 2488 | ||
| 4ce794b7 | 2489 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2490 | }; |
| 2491 | ||
| 157090f7 AM |
2492 | static reloc_howto_type * |
| 2493 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2494 | const char *r_name) | |
| 2495 | { | |
| 2496 | unsigned int i; | |
| 2497 | ||
| a4b6fadd | 2498 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2499 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2500 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2501 | return &ppc64_elf_howto_raw[i]; | |
| 2502 | ||
| 2503 | return NULL; | |
| 2504 | } | |
| 2505 | ||
| 5bd4f169 AM |
2506 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2507 | ||
| 2508 | static void | |
| 4aef7643 | 2509 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2510 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2511 | { |
| 65f38f15 AM |
2512 | unsigned int type; |
| 2513 | ||
| ef60b7ff | 2514 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2515 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2516 | ppc_howto_init (); |
| 2517 | ||
| 65f38f15 | 2518 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2519 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2520 | { |
| 695344c0 | 2521 | /* xgettext:c-format */ |
| 4eca0228 AM |
2522 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
| 2523 | abfd, (int) type); | |
| 3ec2b351 | 2524 | type = R_PPC64_NONE; |
| d0fb9a8d | 2525 | } |
| 65f38f15 | 2526 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2527 | } |
| 2528 | ||
| 04c9666a | 2529 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2530 | |
| 2531 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2532 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2533 | void *data, asection *input_section, | |
| 2534 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2535 | { |
| a680de9a PB |
2536 | enum elf_ppc64_reloc_type r_type; |
| 2537 | long insn; | |
| 2538 | bfd_size_type octets; | |
| 3de43e7b | 2539 | bfd_vma value; |
| a680de9a | 2540 | |
| 805fc799 AM |
2541 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2542 | call the generic function. Any adjustment will be done at final | |
| 2543 | link time. */ | |
| 2544 | if (output_bfd != NULL) | |
| cedb70c5 | 2545 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2546 | input_section, output_bfd, error_message); |
| 2547 | ||
| 2548 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2549 | We won't actually be using the low 16 bits, so trashing them | |
| 2550 | doesn't matter. */ | |
| 2551 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2552 | r_type = reloc_entry->howto->type; |
| 2553 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2554 | return bfd_reloc_continue; | |
| 2555 | ||
| 2556 | value = 0; | |
| 2557 | if (!bfd_is_com_section (symbol->section)) | |
| 2558 | value = symbol->value; | |
| 2559 | value += (reloc_entry->addend | |
| 2560 | + symbol->section->output_offset | |
| 2561 | + symbol->section->output_section->vma); | |
| 2562 | value -= (reloc_entry->address | |
| 2563 | + input_section->output_offset | |
| 2564 | + input_section->output_section->vma); | |
| 3de43e7b | 2565 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2566 | |
| 2567 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2568 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2569 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2570 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2571 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2572 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2573 | return bfd_reloc_overflow; |
| 2574 | return bfd_reloc_ok; | |
| 805fc799 | 2575 | } |
| 5bd4f169 | 2576 | |
| 2441e016 AM |
2577 | static bfd_reloc_status_type |
| 2578 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2579 | void *data, asection *input_section, | |
| 2580 | bfd *output_bfd, char **error_message) | |
| 2581 | { | |
| 2582 | if (output_bfd != NULL) | |
| 2583 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2584 | input_section, output_bfd, error_message); | |
| 2585 | ||
| 699733f6 AM |
2586 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2587 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2588 | { |
| 2589 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2590 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2591 | NULL, NULL, FALSE); |
| 2441e016 AM |
2592 | if (dest != (bfd_vma) -1) |
| 2593 | reloc_entry->addend = dest - (symbol->value | |
| 2594 | + symbol->section->output_section->vma | |
| 2595 | + symbol->section->output_offset); | |
| 2596 | } | |
| 810d4e75 AM |
2597 | else |
| 2598 | { | |
| 2599 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2600 | ||
| 2601 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2602 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2603 | && abiversion (symbol->section->owner) >= 2) |
| 2604 | { | |
| 2605 | unsigned int i; | |
| 2606 | ||
| 2607 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2608 | { | |
| 2609 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2610 | ||
| 2611 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2612 | { | |
| 2613 | elfsym = (elf_symbol_type *) symdef; | |
| 2614 | break; | |
| 2615 | } | |
| 2616 | } | |
| 2617 | } | |
| 2618 | reloc_entry->addend | |
| 2619 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2620 | } | |
| 2441e016 AM |
2621 | return bfd_reloc_continue; |
| 2622 | } | |
| 2623 | ||
| 805fc799 | 2624 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2625 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2626 | void *data, asection *input_section, | |
| 2627 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2628 | { |
| 2629 | long insn; | |
| 04c9666a | 2630 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2631 | bfd_size_type octets; |
| 794e51c0 AM |
2632 | /* Assume 'at' branch hints. */ |
| 2633 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2634 | |
| 2635 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2636 | call the generic function. Any adjustment will be done at final | |
| 2637 | link time. */ | |
| 5bd4f169 | 2638 | if (output_bfd != NULL) |
| cedb70c5 | 2639 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2640 | input_section, output_bfd, error_message); |
| 2641 | ||
| 2642 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2643 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2644 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2645 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2646 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2647 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2648 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2649 | |
| 794e51c0 | 2650 | if (is_isa_v2) |
| 5bd4f169 | 2651 | { |
| 805fc799 AM |
2652 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2653 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2654 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2655 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2656 | insn |= 0x02 << 21; | |
| 2657 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2658 | insn |= 0x08 << 21; | |
| 2659 | else | |
| 2441e016 | 2660 | goto out; |
| 5bd4f169 | 2661 | } |
| 805fc799 AM |
2662 | else |
| 2663 | { | |
| 2664 | bfd_vma target = 0; | |
| 2665 | bfd_vma from; | |
| 5bd4f169 | 2666 | |
| 805fc799 AM |
2667 | if (!bfd_is_com_section (symbol->section)) |
| 2668 | target = symbol->value; | |
| 2669 | target += symbol->section->output_section->vma; | |
| 2670 | target += symbol->section->output_offset; | |
| 2671 | target += reloc_entry->addend; | |
| 5bd4f169 | 2672 | |
| 805fc799 AM |
2673 | from = (reloc_entry->address |
| 2674 | + input_section->output_offset | |
| 2675 | + input_section->output_section->vma); | |
| 5bd4f169 | 2676 | |
| 805fc799 AM |
2677 | /* Invert 'y' bit if not the default. */ |
| 2678 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2679 | insn ^= 0x01 << 21; | |
| 2680 | } | |
| 4ce794b7 | 2681 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2682 | out: |
| 2683 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2684 | input_section, output_bfd, error_message); | |
| 805fc799 | 2685 | } |
| 5bd4f169 | 2686 | |
| 805fc799 | 2687 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2688 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2689 | void *data, asection *input_section, | |
| 2690 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2691 | { |
| 2692 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2693 | call the generic function. Any adjustment will be done at final | |
| 2694 | link time. */ | |
| 2695 | if (output_bfd != NULL) | |
| cedb70c5 | 2696 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2697 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2698 | |
| 805fc799 AM |
2699 | /* Subtract the symbol section base address. */ |
| 2700 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2701 | return bfd_reloc_continue; |
| 2702 | } | |
| 2703 | ||
| 805fc799 | 2704 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2705 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2706 | void *data, asection *input_section, | |
| 2707 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2708 | { |
| 2709 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2710 | call the generic function. Any adjustment will be done at final | |
| 2711 | link time. */ | |
| 2712 | if (output_bfd != NULL) | |
| cedb70c5 | 2713 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2714 | input_section, output_bfd, error_message); |
| 2715 | ||
| 2716 | /* Subtract the symbol section base address. */ | |
| 2717 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2718 | ||
| 2719 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2720 | reloc_entry->addend += 0x8000; | |
| 2721 | return bfd_reloc_continue; | |
| 2722 | } | |
| 2723 | ||
| 2724 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2725 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2726 | void *data, asection *input_section, | |
| 2727 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2728 | { |
| 2729 | bfd_vma TOCstart; | |
| 2730 | ||
| 2731 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2732 | call the generic function. Any adjustment will be done at final | |
| 2733 | link time. */ | |
| 2734 | if (output_bfd != NULL) | |
| cedb70c5 | 2735 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2736 | input_section, output_bfd, error_message); |
| 2737 | ||
| 2738 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2739 | if (TOCstart == 0) | |
| 1c865ab2 | 2740 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2741 | |
| 2742 | /* Subtract the TOC base address. */ | |
| 2743 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2744 | return bfd_reloc_continue; | |
| 2745 | } | |
| 2746 | ||
| 2747 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2748 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2749 | void *data, asection *input_section, | |
| 2750 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2751 | { |
| 2752 | bfd_vma TOCstart; | |
| 2753 | ||
| 2754 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2755 | call the generic function. Any adjustment will be done at final | |
| 2756 | link time. */ | |
| 2757 | if (output_bfd != NULL) | |
| cedb70c5 | 2758 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2759 | input_section, output_bfd, error_message); |
| 2760 | ||
| 2761 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2762 | if (TOCstart == 0) | |
| 1c865ab2 | 2763 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2764 | |
| 2765 | /* Subtract the TOC base address. */ | |
| 2766 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2767 | ||
| 2768 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2769 | reloc_entry->addend += 0x8000; | |
| 2770 | return bfd_reloc_continue; | |
| 2771 | } | |
| 2772 | ||
| 2773 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2774 | ppc64_elf_toc64_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 | bfd_vma TOCstart; | |
| 2779 | bfd_size_type octets; | |
| 2780 | ||
| 2781 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2782 | call the generic function. Any adjustment will be done at final | |
| 2783 | link time. */ | |
| 2784 | if (output_bfd != NULL) | |
| cedb70c5 | 2785 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2786 | input_section, output_bfd, error_message); |
| 2787 | ||
| 2788 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2789 | if (TOCstart == 0) | |
| 1c865ab2 | 2790 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2791 | |
| 2792 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2793 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2794 | return bfd_reloc_ok; | |
| 2795 | } | |
| 2796 | ||
| 2797 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2798 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2799 | void *data, asection *input_section, | |
| 2800 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2801 | { |
| 2802 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2803 | call the generic function. Any adjustment will be done at final | |
| 2804 | link time. */ | |
| 2805 | if (output_bfd != NULL) | |
| cedb70c5 | 2806 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2807 | input_section, output_bfd, error_message); |
| 2808 | ||
| 2809 | if (error_message != NULL) | |
| 2810 | { | |
| 2811 | static char buf[60]; | |
| 2812 | sprintf (buf, "generic linker can't handle %s", | |
| 2813 | reloc_entry->howto->name); | |
| 2814 | *error_message = buf; | |
| 2815 | } | |
| 2816 | return bfd_reloc_dangerous; | |
| 2817 | } | |
| 2818 | ||
| 927be08e AM |
2819 | /* Track GOT entries needed for a given symbol. We might need more |
| 2820 | than one got entry per symbol. */ | |
| 2821 | struct got_entry | |
| 2822 | { | |
| 2823 | struct got_entry *next; | |
| 2824 | ||
| 2825 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2826 | bfd_vma addend; | |
| 2827 | ||
| 2828 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2829 | symbol referenced from different input files. This is to support | |
| 2830 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2831 | from one input file to another. After partitioning into TOC groups | |
| 2832 | we merge entries within the group. | |
| 2833 | ||
| 2834 | Point to the BFD owning this GOT entry. */ | |
| 2835 | bfd *owner; | |
| 2836 | ||
| 2837 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2838 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2839 | unsigned char tls_type; |
| 927be08e AM |
2840 | |
| 2841 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2842 | unsigned char is_indirect; |
| 927be08e AM |
2843 | |
| 2844 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2845 | union | |
| 2846 | { | |
| 2847 | bfd_signed_vma refcount; | |
| 2848 | bfd_vma offset; | |
| 2849 | struct got_entry *ent; | |
| 2850 | } got; | |
| 2851 | }; | |
| 2852 | ||
| 2853 | /* The same for PLT. */ | |
| 2854 | struct plt_entry | |
| 2855 | { | |
| 2856 | struct plt_entry *next; | |
| 2857 | ||
| 2858 | bfd_vma addend; | |
| 2859 | ||
| 2860 | union | |
| 2861 | { | |
| 2862 | bfd_signed_vma refcount; | |
| 2863 | bfd_vma offset; | |
| 2864 | } plt; | |
| 2865 | }; | |
| 2866 | ||
| e717da7e AM |
2867 | struct ppc64_elf_obj_tdata |
| 2868 | { | |
| 2869 | struct elf_obj_tdata elf; | |
| 2870 | ||
| 2871 | /* Shortcuts to dynamic linker sections. */ | |
| 2872 | asection *got; | |
| 2873 | asection *relgot; | |
| 2874 | ||
| b3fac117 AM |
2875 | /* Used during garbage collection. We attach global symbols defined |
| 2876 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2877 | asection *deleted_section; | |
| 81688140 | 2878 | |
| 927be08e | 2879 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2880 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2881 | struct got_entry tlsld_got; |
| 8860955f | 2882 | |
| 729eabd5 AM |
2883 | union { |
| 2884 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2885 | Elf_Internal_Rela *relocs; | |
| 2886 | ||
| 2887 | /* Section contents. */ | |
| 2888 | bfd_byte *contents; | |
| 2889 | } opd; | |
| d77c8a4b AM |
2890 | |
| 2891 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2892 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2893 | unsigned int has_small_toc_reloc : 1; |
| 2894 | ||
| 560c8763 AM |
2895 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2896 | instruction not one we handle. */ | |
| 2897 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2898 | }; |
| 2899 | ||
| 2900 | #define ppc64_elf_tdata(bfd) \ | |
| 2901 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2902 | ||
| 2903 | #define ppc64_tlsld_got(bfd) \ | |
| 2904 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2905 | ||
| 0c8d6e5c AM |
2906 | #define is_ppc64_elf(bfd) \ |
| 2907 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2908 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2909 | |
| e717da7e AM |
2910 | /* Override the generic function because we store some extras. */ |
| 2911 | ||
| 2912 | static bfd_boolean | |
| 2913 | ppc64_elf_mkobject (bfd *abfd) | |
| 2914 | { | |
| 0ffa91dd | 2915 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2916 | PPC64_ELF_DATA); |
| e717da7e AM |
2917 | } |
| 2918 | ||
| feee612b | 2919 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2920 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2921 | |
| b34976b6 | 2922 | static bfd_boolean |
| 4ce794b7 | 2923 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2924 | { |
| 14b57c7c AM |
2925 | if (!abfd->arch_info->the_default) |
| 2926 | return TRUE; | |
| 2927 | ||
| 2928 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2929 | { |
| 2930 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2931 | ||
| 2932 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2933 | { | |
| 2934 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2935 | abfd->arch_info = abfd->arch_info->next; | |
| 2936 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2937 | } | |
| 2938 | } | |
| 14b57c7c | 2939 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2940 | } |
| 2941 | ||
| d37c89e5 AM |
2942 | /* Support for core dump NOTE sections. */ |
| 2943 | ||
| 2944 | static bfd_boolean | |
| 2945 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2946 | { | |
| eea6121a | 2947 | size_t offset, size; |
| d37c89e5 AM |
2948 | |
| 2949 | if (note->descsz != 504) | |
| 2950 | return FALSE; | |
| 2951 | ||
| 2952 | /* pr_cursig */ | |
| 228e534f | 2953 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2954 | |
| 2955 | /* pr_pid */ | |
| 228e534f | 2956 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2957 | |
| 2958 | /* pr_reg */ | |
| 2959 | offset = 112; | |
| eea6121a | 2960 | size = 384; |
| d37c89e5 AM |
2961 | |
| 2962 | /* Make a ".reg/999" section. */ | |
| 2963 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2964 | size, note->descpos + offset); |
| d37c89e5 AM |
2965 | } |
| 2966 | ||
| 2967 | static bfd_boolean | |
| 2968 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2969 | { | |
| 2970 | if (note->descsz != 136) | |
| 2971 | return FALSE; | |
| 2972 | ||
| 228e534f | 2973 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2974 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2975 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2976 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2977 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2978 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2979 | ||
| 2980 | return TRUE; | |
| 2981 | } | |
| 2982 | ||
| 183e98be AM |
2983 | static char * |
| 2984 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2985 | ...) | |
| 2986 | { | |
| 2987 | switch (note_type) | |
| 2988 | { | |
| 2989 | default: | |
| 2990 | return NULL; | |
| 2991 | ||
| 2992 | case NT_PRPSINFO: | |
| 2993 | { | |
| 2994 | char data[136]; | |
| 2995 | va_list ap; | |
| 2996 | ||
| 2997 | va_start (ap, note_type); | |
| 75cd47ed | 2998 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2999 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 3000 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 3001 | va_end (ap); | |
| 3002 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3003 | "CORE", note_type, data, sizeof (data)); | |
| 3004 | } | |
| 3005 | ||
| 3006 | case NT_PRSTATUS: | |
| 3007 | { | |
| 3008 | char data[504]; | |
| 3009 | va_list ap; | |
| 3010 | long pid; | |
| 3011 | int cursig; | |
| 3012 | const void *greg; | |
| 3013 | ||
| 3014 | va_start (ap, note_type); | |
| 3015 | memset (data, 0, 112); | |
| 3016 | pid = va_arg (ap, long); | |
| 3017 | bfd_put_32 (abfd, pid, data + 32); | |
| 3018 | cursig = va_arg (ap, int); | |
| 3019 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3020 | greg = va_arg (ap, const void *); | |
| 3021 | memcpy (data + 112, greg, 384); | |
| 3022 | memset (data + 496, 0, 8); | |
| 3023 | va_end (ap); | |
| 3024 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3025 | "CORE", note_type, data, sizeof (data)); | |
| 3026 | } | |
| 3027 | } | |
| 3028 | } | |
| 3029 | ||
| 5d35169e AM |
3030 | /* Add extra PPC sections. */ |
| 3031 | ||
| b35d266b | 3032 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3033 | { |
| 07d6d2b8 AM |
3034 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3035 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3036 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 AM |
3037 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 3038 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3039 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 | 3040 | { NULL, 0, 0, 0, 0 } |
| 5d35169e AM |
3041 | }; |
| 3042 | ||
| 7c8fe5c4 AM |
3043 | enum _ppc64_sec_type { |
| 3044 | sec_normal = 0, | |
| 3045 | sec_opd = 1, | |
| 3046 | sec_toc = 2 | |
| 3047 | }; | |
| 3048 | ||
| f0abc2a1 AM |
3049 | struct _ppc64_elf_section_data |
| 3050 | { | |
| 3051 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3052 | |
| f0abc2a1 AM |
3053 | union |
| 3054 | { | |
| 51aecdc5 AM |
3055 | /* An array with one entry for each opd function descriptor, |
| 3056 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3057 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3058 | struct _opd_sec_data |
| 3059 | { | |
| 3060 | /* Points to the function code section for local opd entries. */ | |
| 3061 | asection **func_sec; | |
| 3062 | ||
| 3063 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3064 | long *adjust; | |
| 3065 | } opd; | |
| 7c8fe5c4 | 3066 | |
| 3a71aa26 AM |
3067 | /* An array for toc sections, indexed by offset/8. */ |
| 3068 | struct _toc_sec_data | |
| 3069 | { | |
| 3070 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3071 | unsigned *symndx; | |
| 3072 | ||
| 3073 | /* And the relocation addend. */ | |
| 3074 | bfd_vma *add; | |
| 3075 | } toc; | |
| 7c8fe5c4 AM |
3076 | } u; |
| 3077 | ||
| 3078 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3079 | |
| 7c8fe5c4 AM |
3080 | /* Flag set when small branches are detected. Used to |
| 3081 | select suitable defaults for the stub group size. */ | |
| 3082 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3083 | }; |
| 3084 | ||
| 3085 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3086 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3087 | |
| 3088 | static bfd_boolean | |
| 4ce794b7 | 3089 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3090 | { |
| f592407e AM |
3091 | if (!sec->used_by_bfd) |
| 3092 | { | |
| 3093 | struct _ppc64_elf_section_data *sdata; | |
| 3094 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3095 | |
| f592407e AM |
3096 | sdata = bfd_zalloc (abfd, amt); |
| 3097 | if (sdata == NULL) | |
| 3098 | return FALSE; | |
| 3099 | sec->used_by_bfd = sdata; | |
| 3100 | } | |
| f0abc2a1 AM |
3101 | |
| 3102 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3103 | } | |
| 4025353c | 3104 | |
| 74f0fb50 | 3105 | static struct _opd_sec_data * |
| 4025353c AM |
3106 | get_opd_info (asection * sec) |
| 3107 | { | |
| 3108 | if (sec != NULL | |
| 3109 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3110 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3111 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3112 | return NULL; |
| 3113 | } | |
| 90e3cdf2 JJ |
3114 | \f |
| 3115 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3116 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3117 | static asection *synthetic_opd; |
| 90e3cdf2 | 3118 | |
| 699733f6 | 3119 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3120 | |
| 3121 | static int | |
| 3122 | compare_symbols (const void *ap, const void *bp) | |
| 3123 | { | |
| 3124 | const asymbol *a = * (const asymbol **) ap; | |
| 3125 | const asymbol *b = * (const asymbol **) bp; | |
| 3126 | ||
| 699733f6 AM |
3127 | /* Section symbols first. */ |
| 3128 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3129 | return -1; |
| 699733f6 | 3130 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3131 | return 1; |
| 3132 | ||
| 699733f6 | 3133 | /* then .opd symbols. */ |
| cd285db5 AM |
3134 | if (synthetic_opd != NULL) |
| 3135 | { | |
| 3136 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3137 | && strcmp (b->section->name, ".opd") != 0) | |
| 3138 | return -1; | |
| 3139 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3140 | && strcmp (b->section->name, ".opd") == 0) | |
| 3141 | return 1; | |
| 3142 | } | |
| 90e3cdf2 | 3143 | |
| 699733f6 | 3144 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3145 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3146 | == (SEC_CODE | SEC_ALLOC) | |
| 3147 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3148 | != (SEC_CODE | SEC_ALLOC)) | |
| 3149 | return -1; | |
| 3150 | ||
| 3151 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3152 | != (SEC_CODE | SEC_ALLOC) | |
| 3153 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3154 | == (SEC_CODE | SEC_ALLOC)) | |
| 3155 | return 1; | |
| 3156 | ||
| 3157 | if (synthetic_relocatable) | |
| 3158 | { | |
| 3159 | if (a->section->id < b->section->id) | |
| 3160 | return -1; | |
| 3161 | ||
| 3162 | if (a->section->id > b->section->id) | |
| 3163 | return 1; | |
| 3164 | } | |
| 3165 | ||
| 3166 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3167 | return -1; | |
| 3168 | ||
| 3169 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3170 | return 1; | |
| 3171 | ||
| 4d35a0aa AM |
3172 | /* For syms with the same value, prefer strong dynamic global function |
| 3173 | syms over other syms. */ | |
| 3174 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3175 | return -1; | |
| 3176 | ||
| 3177 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3178 | return 1; | |
| 3179 | ||
| 3180 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3181 | return -1; | |
| 3182 | ||
| 3183 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3184 | return 1; | |
| 3185 | ||
| 3186 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3187 | return -1; | |
| 3188 | ||
| 3189 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3190 | return 1; | |
| 3191 | ||
| 3192 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3193 | return -1; | |
| 3194 | ||
| 3195 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3196 | return 1; | |
| 3197 | ||
| aaed6f5b | 3198 | return a > b; |
| 90e3cdf2 JJ |
3199 | } |
| 3200 | ||
| 699733f6 | 3201 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3202 | |
| 699733f6 | 3203 | static asymbol * |
| 7292b3ac | 3204 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3205 | { |
| 699733f6 | 3206 | long mid; |
| 90e3cdf2 | 3207 | |
| 7292b3ac | 3208 | if (id == (unsigned) -1) |
| 699733f6 AM |
3209 | { |
| 3210 | while (lo < hi) | |
| 3211 | { | |
| 3212 | mid = (lo + hi) >> 1; | |
| 3213 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3214 | lo = mid + 1; | |
| 3215 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3216 | hi = mid; | |
| 3217 | else | |
| 3218 | return syms[mid]; | |
| 3219 | } | |
| 3220 | } | |
| 3221 | else | |
| 3222 | { | |
| 3223 | while (lo < hi) | |
| 3224 | { | |
| 3225 | mid = (lo + hi) >> 1; | |
| 3226 | if (syms[mid]->section->id < id) | |
| 3227 | lo = mid + 1; | |
| 3228 | else if (syms[mid]->section->id > id) | |
| 3229 | hi = mid; | |
| 3230 | else if (syms[mid]->value < value) | |
| 3231 | lo = mid + 1; | |
| 3232 | else if (syms[mid]->value > value) | |
| 3233 | hi = mid; | |
| 3234 | else | |
| 3235 | return syms[mid]; | |
| 3236 | } | |
| 3237 | } | |
| 3238 | return NULL; | |
| 90e3cdf2 JJ |
3239 | } |
| 3240 | ||
| 468392fb AM |
3241 | static bfd_boolean |
| 3242 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3243 | { | |
| 3244 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3245 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3246 | && section->vma <= vma | |
| 3247 | && vma < section->vma + section->size); | |
| 3248 | } | |
| 3249 | ||
| 699733f6 | 3250 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3251 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3252 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3253 | |
| 3254 | static long | |
| a7535cf3 AM |
3255 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3256 | long static_count, asymbol **static_syms, | |
| 3257 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3258 | asymbol **ret) |
| 90e3cdf2 JJ |
3259 | { |
| 3260 | asymbol *s; | |
| 699733f6 AM |
3261 | long i; |
| 3262 | long count; | |
| 90e3cdf2 | 3263 | char *names; |
| a7535cf3 | 3264 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3265 | asection *opd = NULL; |
| 90e3cdf2 | 3266 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3267 | asymbol **syms; |
| ee67d69a | 3268 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3269 | |
| 3270 | *ret = NULL; | |
| 3271 | ||
| ee67d69a AM |
3272 | if (abi < 2) |
| 3273 | { | |
| 3274 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3275 | if (opd == NULL && abi == 1) | |
| 3276 | return 0; | |
| 3277 | } | |
| 90e3cdf2 | 3278 | |
| a5259595 AM |
3279 | syms = NULL; |
| 3280 | codesecsym = 0; | |
| 3281 | codesecsymend = 0; | |
| 3282 | secsymend = 0; | |
| 3283 | opdsymend = 0; | |
| 3284 | symcount = 0; | |
| 3285 | if (opd != NULL) | |
| c9727e01 | 3286 | { |
| a5259595 AM |
3287 | symcount = static_count; |
| 3288 | if (!relocatable) | |
| 3289 | symcount += dyn_count; | |
| 3290 | if (symcount == 0) | |
| 3291 | return 0; | |
| c9727e01 | 3292 | |
| a5259595 AM |
3293 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3294 | if (syms == NULL) | |
| 3295 | return -1; | |
| 90e3cdf2 | 3296 | |
| a5259595 AM |
3297 | if (!relocatable && static_count != 0 && dyn_count != 0) |
| 3298 | { | |
| 3299 | /* Use both symbol tables. */ | |
| 3300 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3301 | memcpy (syms + static_count, dyn_syms, | |
| 3302 | (dyn_count + 1) * sizeof (*syms)); | |
| 3303 | } | |
| 3304 | else if (!relocatable && static_count == 0) | |
| 3305 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3306 | else | |
| 3307 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 90e3cdf2 | 3308 | |
| a5259595 AM |
3309 | synthetic_relocatable = relocatable; |
| 3310 | synthetic_opd = opd; | |
| 3311 | qsort (syms, symcount, sizeof (*syms), compare_symbols); | |
| 90e3cdf2 | 3312 | |
| a5259595 AM |
3313 | if (!relocatable && symcount > 1) |
| 3314 | { | |
| 3315 | long j; | |
| 3316 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3317 | dynamic symbols. Actually, we only care about syms that have | |
| 3318 | different values, so trim any with the same value. */ | |
| 3319 | for (i = 1, j = 1; i < symcount; ++i) | |
| 3320 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3321 | != syms[i]->value + syms[i]->section->vma) | |
| 3322 | syms[j++] = syms[i]; | |
| 3323 | symcount = j; | |
| 3324 | } | |
| 699733f6 | 3325 | |
| a5259595 AM |
3326 | i = 0; |
| 3327 | /* Note that here and in compare_symbols we can't compare opd and | |
| 3328 | sym->section directly. With separate debug info files, the | |
| 3329 | symbols will be extracted from the debug file while abfd passed | |
| 3330 | to this function is the real binary. */ | |
| 3331 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 3332 | ++i; | |
| 3333 | codesecsym = i; | |
| 3334 | ||
| 3335 | for (; i < symcount; ++i) | |
| 3336 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | |
| 3337 | | SEC_THREAD_LOCAL)) | |
| 3338 | != (SEC_CODE | SEC_ALLOC)) | |
| 3339 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3340 | break; | |
| 3341 | codesecsymend = i; | |
| 3342 | ||
| 3343 | for (; i < symcount; ++i) | |
| 3344 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3345 | break; | |
| 3346 | secsymend = i; | |
| 3347 | ||
| 3348 | for (; i < symcount; ++i) | |
| 3349 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3350 | break; | |
| 3351 | opdsymend = i; | |
| 3352 | ||
| 3353 | for (; i < symcount; ++i) | |
| 3354 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3355 | != (SEC_CODE | SEC_ALLOC)) | |
| 3356 | break; | |
| 3357 | symcount = i; | |
| 3358 | } | |
| c9727e01 | 3359 | count = 0; |
| 90e3cdf2 | 3360 | |
| 699733f6 | 3361 | if (relocatable) |
| 90e3cdf2 | 3362 | { |
| 699733f6 AM |
3363 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3364 | arelent *r; | |
| 3365 | size_t size; | |
| 3366 | long relcount; | |
| 90e3cdf2 | 3367 | |
| 468392fb AM |
3368 | if (opdsymend == secsymend) |
| 3369 | goto done; | |
| 3370 | ||
| 699733f6 | 3371 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3372 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3373 | if (relcount == 0) |
| c9727e01 | 3374 | goto done; |
| 90e3cdf2 | 3375 | |
| 7356fed5 AM |
3376 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3377 | { | |
| 3378 | count = -1; | |
| 3379 | goto done; | |
| 3380 | } | |
| 3381 | ||
| 699733f6 | 3382 | size = 0; |
| 595da8c5 | 3383 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3384 | { |
| 3385 | asymbol *sym; | |
| 90e3cdf2 | 3386 | |
| 595da8c5 | 3387 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3388 | && r->address < syms[i]->value + opd->vma) |
| 3389 | ++r; | |
| 90e3cdf2 | 3390 | |
| 595da8c5 | 3391 | if (r == opd->relocation + relcount) |
| 699733f6 | 3392 | break; |
| 90e3cdf2 | 3393 | |
| 699733f6 AM |
3394 | if (r->address != syms[i]->value + opd->vma) |
| 3395 | continue; | |
| 90e3cdf2 | 3396 | |
| 699733f6 AM |
3397 | if (r->howto->type != R_PPC64_ADDR64) |
| 3398 | continue; | |
| 90e3cdf2 | 3399 | |
| 699733f6 AM |
3400 | sym = *r->sym_ptr_ptr; |
| 3401 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3402 | sym->section->id, sym->value + r->addend)) | |
| 3403 | { | |
| 3404 | ++count; | |
| 3405 | size += sizeof (asymbol); | |
| 3406 | size += strlen (syms[i]->name) + 2; | |
| 3407 | } | |
| 3408 | } | |
| 90e3cdf2 | 3409 | |
| c4b0b099 AM |
3410 | if (size == 0) |
| 3411 | goto done; | |
| 699733f6 AM |
3412 | s = *ret = bfd_malloc (size); |
| 3413 | if (s == NULL) | |
| 3414 | { | |
| 7356fed5 | 3415 | count = -1; |
| c9727e01 | 3416 | goto done; |
| 699733f6 | 3417 | } |
| 90e3cdf2 | 3418 | |
| 699733f6 | 3419 | names = (char *) (s + count); |
| 90e3cdf2 | 3420 | |
| 595da8c5 | 3421 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3422 | { |
| 699733f6 | 3423 | asymbol *sym; |
| 90e3cdf2 | 3424 | |
| 595da8c5 | 3425 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3426 | && r->address < syms[i]->value + opd->vma) |
| 3427 | ++r; | |
| 90e3cdf2 | 3428 | |
| 595da8c5 | 3429 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3430 | break; |
| 3431 | ||
| 3432 | if (r->address != syms[i]->value + opd->vma) | |
| 3433 | continue; | |
| 3434 | ||
| 3435 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3436 | continue; | |
| 90e3cdf2 | 3437 | |
| 699733f6 AM |
3438 | sym = *r->sym_ptr_ptr; |
| 3439 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3440 | sym->section->id, sym->value + r->addend)) | |
| 3441 | { | |
| 3442 | size_t len; | |
| 3443 | ||
| 3444 | *s = *syms[i]; | |
| 6ba2a415 | 3445 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3446 | s->section = sym->section; |
| 3447 | s->value = sym->value + r->addend; | |
| 3448 | s->name = names; | |
| 3449 | *names++ = '.'; | |
| 3450 | len = strlen (syms[i]->name); | |
| 3451 | memcpy (names, syms[i]->name, len + 1); | |
| 3452 | names += len + 1; | |
| 6f610d07 UW |
3453 | /* Have udata.p point back to the original symbol this |
| 3454 | synthetic symbol was derived from. */ | |
| 3455 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3456 | s++; |
| 3457 | } | |
| 3458 | } | |
| 3459 | } | |
| 3460 | else | |
| 90e3cdf2 | 3461 | { |
| 468392fb | 3462 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3463 | bfd_byte *contents = NULL; |
| 699733f6 | 3464 | size_t size; |
| 468392fb AM |
3465 | long plt_count = 0; |
| 3466 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3467 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3468 | arelent *p; | |
| 90e3cdf2 | 3469 | |
| ee67d69a | 3470 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3471 | { |
| c4b0b099 AM |
3472 | free_contents_and_exit_err: |
| 3473 | count = -1; | |
| ee67d69a | 3474 | free_contents_and_exit: |
| 699733f6 | 3475 | if (contents) |
| ee67d69a | 3476 | free (contents); |
| c9727e01 | 3477 | goto done; |
| 699733f6 | 3478 | } |
| 90e3cdf2 | 3479 | |
| 699733f6 AM |
3480 | size = 0; |
| 3481 | for (i = secsymend; i < opdsymend; ++i) | |
| 3482 | { | |
| 3483 | bfd_vma ent; | |
| 90e3cdf2 | 3484 | |
| 5ef11c02 AM |
3485 | /* Ignore bogus symbols. */ |
| 3486 | if (syms[i]->value > opd->size - 8) | |
| 3487 | continue; | |
| 3488 | ||
| 699733f6 AM |
3489 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3490 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3491 | { | |
| 3492 | ++count; | |
| 3493 | size += sizeof (asymbol); | |
| 3494 | size += strlen (syms[i]->name) + 2; | |
| 3495 | } | |
| 3496 | } | |
| 90e3cdf2 | 3497 | |
| 468392fb | 3498 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3499 | if (dyn_count != 0 |
| 3500 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3501 | { |
| 3502 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3503 | size_t extdynsize; | |
| 3504 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3505 | ||
| 3506 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3507 | goto free_contents_and_exit_err; |
| 468392fb AM |
3508 | |
| 3509 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3510 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3511 | ||
| 3512 | extdyn = dynbuf; | |
| 3513 | extdynend = extdyn + dynamic->size; | |
| 3514 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3515 | { | |
| 3516 | Elf_Internal_Dyn dyn; | |
| 3517 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3518 | ||
| 3519 | if (dyn.d_tag == DT_NULL) | |
| 3520 | break; | |
| 3521 | ||
| 3522 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3523 | { | |
| 9e390558 AM |
3524 | /* The first glink stub starts at DT_PPC64_GLINK plus 32. |
| 3525 | See comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3526 | glink_vma = dyn.d_un.d_val + 8 * 4; | |
| 468392fb AM |
3527 | /* The .glink section usually does not survive the final |
| 3528 | link; search for the section (usually .text) where the | |
| 3529 | glink stubs now reside. */ | |
| 3530 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3531 | &glink_vma); | |
| 3532 | break; | |
| 3533 | } | |
| 3534 | } | |
| 3535 | ||
| 3536 | free (dynbuf); | |
| 3537 | } | |
| 3538 | ||
| 3539 | if (glink != NULL) | |
| 3540 | { | |
| 3541 | /* Determine __glink trampoline by reading the relative branch | |
| 3542 | from the first glink stub. */ | |
| 3543 | bfd_byte buf[4]; | |
| b9e5796b AM |
3544 | unsigned int off = 0; |
| 3545 | ||
| 3546 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3547 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3548 | { |
| 3549 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3550 | insn ^= B_DOT; | |
| 3551 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3552 | { |
| 3553 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3554 | break; | |
| 3555 | } | |
| 3556 | off += 4; | |
| 3557 | if (off > 4) | |
| 3558 | break; | |
| 468392fb AM |
3559 | } |
| 3560 | ||
| 3561 | if (resolv_vma) | |
| 3562 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3563 | |
| 066ee829 AM |
3564 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3565 | if (relplt != NULL) | |
| 3566 | { | |
| 3567 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3568 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3569 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3570 | |
| 066ee829 AM |
3571 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3572 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3573 | |
| 066ee829 AM |
3574 | p = relplt->relocation; |
| 3575 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3576 | { |
| 3577 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3578 | if (p->addend != 0) | |
| 3579 | size += sizeof ("+0x") - 1 + 16; | |
| 3580 | } | |
| 066ee829 | 3581 | } |
| 468392fb AM |
3582 | } |
| 3583 | ||
| c4b0b099 AM |
3584 | if (size == 0) |
| 3585 | goto free_contents_and_exit; | |
| 699733f6 AM |
3586 | s = *ret = bfd_malloc (size); |
| 3587 | if (s == NULL) | |
| c4b0b099 | 3588 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3589 | |
| 468392fb | 3590 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3591 | |
| 699733f6 | 3592 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3593 | { |
| 699733f6 | 3594 | bfd_vma ent; |
| 90e3cdf2 | 3595 | |
| 5ef11c02 AM |
3596 | if (syms[i]->value > opd->size - 8) |
| 3597 | continue; | |
| 3598 | ||
| 699733f6 AM |
3599 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3600 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3601 | { |
| c9727e01 | 3602 | long lo, hi; |
| 699733f6 | 3603 | size_t len; |
| c9727e01 | 3604 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3605 | |
| 699733f6 AM |
3606 | *s = *syms[i]; |
| 3607 | lo = codesecsym; | |
| 3608 | hi = codesecsymend; | |
| 3609 | while (lo < hi) | |
| 3610 | { | |
| c9727e01 | 3611 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3612 | if (syms[mid]->section->vma < ent) |
| 3613 | lo = mid + 1; | |
| 3614 | else if (syms[mid]->section->vma > ent) | |
| 3615 | hi = mid; | |
| 3616 | else | |
| c9727e01 AM |
3617 | { |
| 3618 | sec = syms[mid]->section; | |
| 3619 | break; | |
| 3620 | } | |
| 699733f6 AM |
3621 | } |
| 3622 | ||
| c9727e01 | 3623 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3624 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3625 | |
| 3626 | for (; sec != NULL; sec = sec->next) | |
| 3627 | { | |
| 3628 | if (sec->vma > ent) | |
| 3629 | break; | |
| 63524580 JK |
3630 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3631 | info file. */ | |
| 3632 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3633 | break; |
| 3634 | if ((sec->flags & SEC_CODE) != 0) | |
| 3635 | s->section = sec; | |
| 3636 | } | |
| 6ba2a415 | 3637 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3638 | s->value = ent - s->section->vma; |
| 3639 | s->name = names; | |
| 3640 | *names++ = '.'; | |
| 3641 | len = strlen (syms[i]->name); | |
| 3642 | memcpy (names, syms[i]->name, len + 1); | |
| 3643 | names += len + 1; | |
| 6f610d07 UW |
3644 | /* Have udata.p point back to the original symbol this |
| 3645 | synthetic symbol was derived from. */ | |
| 3646 | s->udata.p = syms[i]; | |
| 699733f6 | 3647 | s++; |
| 90e3cdf2 | 3648 | } |
| 90e3cdf2 | 3649 | } |
| 699733f6 | 3650 | free (contents); |
| 468392fb AM |
3651 | |
| 3652 | if (glink != NULL && relplt != NULL) | |
| 3653 | { | |
| 3654 | if (resolv_vma) | |
| 3655 | { | |
| 3656 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3657 | memset (s, 0, sizeof *s); |
| 468392fb | 3658 | s->the_bfd = abfd; |
| 6ba2a415 | 3659 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3660 | s->section = glink; |
| 3661 | s->value = resolv_vma - glink->vma; | |
| 3662 | s->name = names; | |
| 3663 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3664 | names += sizeof ("__glink_PLTresolve"); | |
| 3665 | s++; | |
| 3666 | count++; | |
| 3667 | } | |
| 3668 | ||
| 3669 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3670 | stub rather than on the glink branch table entry. The | |
| 3671 | objdump disassembler would then use a sensible symbol | |
| 3672 | name on plt calls. The difficulty in doing so is | |
| 3673 | a) finding the stubs, and, | |
| 3674 | b) matching stubs against plt entries, and, | |
| 3675 | c) there can be multiple stubs for a given plt entry. | |
| 3676 | ||
| 3677 | Solving (a) could be done by code scanning, but older | |
| 3678 | ppc64 binaries used different stubs to current code. | |
| 3679 | (b) is the tricky one since you need to known the toc | |
| 3680 | pointer for at least one function that uses a pic stub to | |
| 3681 | be able to calculate the plt address referenced. | |
| 3682 | (c) means gdb would need to set multiple breakpoints (or | |
| 3683 | find the glink branch itself) when setting breakpoints | |
| 3684 | for pending shared library loads. */ | |
| 3685 | p = relplt->relocation; | |
| 3686 | for (i = 0; i < plt_count; i++, p++) | |
| 3687 | { | |
| 3688 | size_t len; | |
| 3689 | ||
| 3690 | *s = **p->sym_ptr_ptr; | |
| 3691 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3692 | we are defining a symbol, ensure one of them is set. */ | |
| 3693 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3694 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3695 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3696 | s->section = glink; |
| 3697 | s->value = glink_vma - glink->vma; | |
| 3698 | s->name = names; | |
| 3699 | s->udata.p = NULL; | |
| 3700 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3701 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3702 | names += len; | |
| e054468f AM |
3703 | if (p->addend != 0) |
| 3704 | { | |
| 3705 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3706 | names += sizeof ("+0x") - 1; | |
| 3707 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3708 | names += strlen (names); | |
| 3709 | } | |
| 468392fb AM |
3710 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3711 | names += sizeof ("@plt"); | |
| 3712 | s++; | |
| b9e5796b AM |
3713 | if (abi < 2) |
| 3714 | { | |
| 3715 | glink_vma += 8; | |
| 3716 | if (i >= 0x8000) | |
| 3717 | glink_vma += 4; | |
| 3718 | } | |
| 3719 | else | |
| 468392fb AM |
3720 | glink_vma += 4; |
| 3721 | } | |
| 3722 | count += plt_count; | |
| 3723 | } | |
| 90e3cdf2 JJ |
3724 | } |
| 3725 | ||
| c9727e01 | 3726 | done: |
| a7535cf3 | 3727 | free (syms); |
| 90e3cdf2 JJ |
3728 | return count; |
| 3729 | } | |
| 5bd4f169 | 3730 | \f |
| 65f38f15 AM |
3731 | /* The following functions are specific to the ELF linker, while |
| 3732 | functions above are used generally. Those named ppc64_elf_* are | |
| 3733 | called by the main ELF linker code. They appear in this file more | |
| 3734 | or less in the order in which they are called. eg. | |
| 3735 | ppc64_elf_check_relocs is called early in the link process, | |
| 3736 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3737 | called. |
| 3738 | ||
| 3739 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3740 | functions have both a function code symbol and a function descriptor | |
| 3741 | symbol. A call to foo in a relocatable object file looks like: | |
| 3742 | ||
| 3743 | . .text | |
| 3744 | . x: | |
| 3745 | . bl .foo | |
| 3746 | . nop | |
| 3747 | ||
| 3748 | The function definition in another object file might be: | |
| 3749 | ||
| 3750 | . .section .opd | |
| 3751 | . foo: .quad .foo | |
| 3752 | . .quad .TOC.@tocbase | |
| 3753 | . .quad 0 | |
| 3754 | . | |
| 3755 | . .text | |
| 3756 | . .foo: blr | |
| 3757 | ||
| 3758 | When the linker resolves the call during a static link, the branch | |
| 3759 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3760 | If the function definition is in a shared library, things are a little | |
| 3761 | different: The call goes via a plt call stub, the opd information gets | |
| 3762 | copied to the plt, and the linker patches the nop. | |
| 3763 | ||
| 3764 | . x: | |
| 3765 | . bl .foo_stub | |
| 3766 | . ld 2,40(1) | |
| 3767 | . | |
| 3768 | . | |
| 3769 | . .foo_stub: | |
| 71a39c98 AM |
3770 | . std 2,40(1) # in practice, the call stub |
| 3771 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3772 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3773 | . ld 12,0(11) | |
| 3774 | . ld 2,8(11) | |
| 3775 | . mtctr 12 | |
| 3776 | . ld 11,16(11) | |
| e86ce104 AM |
3777 | . bctr |
| 3778 | . | |
| 3779 | . .section .plt | |
| 3780 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3781 | ||
| 3782 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3783 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3784 | copying. | |
| 3785 | ||
| 3786 | What are the difficulties here? Well, firstly, the relocations | |
| 3787 | examined by the linker in check_relocs are against the function code | |
| 3788 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3789 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3790 | to carefully copy dynamic link information from one symbol to the other. | |
| 3791 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3792 | symbol as is normal for most other backends. We need foo dynamic | |
| 3793 | instead, at least for an application final link. However, when | |
| 3794 | creating a shared library containing foo, we need to have both symbols | |
| 3795 | dynamic so that references to .foo are satisfied during the early | |
| 3796 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3797 | definition from some other object, eg. a static library. |
| 3798 | ||
| 3799 | Update: As of August 2004, we support a new convention. Function | |
| 3800 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3801 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3802 | |
| 7c8bbca5 AM |
3803 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3804 | function selects those that must be copied when linking a shared | |
| 3805 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3806 | |
| 1d483afe AM |
3807 | static int |
| 3808 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3809 | enum elf_ppc64_reloc_type r_type) | |
| 3810 | { | |
| 3811 | switch (r_type) | |
| 3812 | { | |
| 3813 | default: | |
| 7c8bbca5 AM |
3814 | /* Only relative relocs can be resolved when the object load |
| 3815 | address isn't fixed. DTPREL64 is excluded because the | |
| 3816 | dynamic linker needs to differentiate global dynamic from | |
| 3817 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3818 | return 1; |
| 3819 | ||
| 3820 | case R_PPC64_REL32: | |
| 3821 | case R_PPC64_REL64: | |
| 3822 | case R_PPC64_REL30: | |
| 3823 | return 0; | |
| 3824 | ||
| 3825 | case R_PPC64_TPREL16: | |
| 3826 | case R_PPC64_TPREL16_LO: | |
| 3827 | case R_PPC64_TPREL16_HI: | |
| 3828 | case R_PPC64_TPREL16_HA: | |
| 3829 | case R_PPC64_TPREL16_DS: | |
| 3830 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3831 | case R_PPC64_TPREL16_HIGH: |
| 3832 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3833 | case R_PPC64_TPREL16_HIGHER: |
| 3834 | case R_PPC64_TPREL16_HIGHERA: | |
| 3835 | case R_PPC64_TPREL16_HIGHEST: | |
| 3836 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3837 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3838 | /* These relocations are relative but in a shared library the |
| 3839 | linker doesn't know the thread pointer base. */ | |
| 3840 | return bfd_link_dll (info); | |
| 1d483afe AM |
3841 | } |
| 3842 | } | |
| 65f38f15 | 3843 | |
| f4656909 AM |
3844 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3845 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3846 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3847 | shared lib. With code that gcc generates, it's vital that this be |
| 3848 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3849 | the address of a function descriptor, which resides in the .opd | |
| 3850 | section. gcc uses the descriptor directly rather than going via the | |
| 3851 | GOT as some other ABI's do, which means that initialized function | |
| 3852 | pointers must reference the descriptor. Thus, a function pointer | |
| 3853 | initialized to the address of a function in a shared library will | |
| 3854 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3855 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3856 | presents a problem as a plt entry for that function is also |
| 3857 | initialized from the function descriptor symbol and the copy reloc | |
| 3858 | may not be initialized first. */ | |
| a23b6845 | 3859 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3860 | |
| 721956f4 | 3861 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3862 | string. */ |
| 3863 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3864 | |
| 3865 | /* Linker stubs. | |
| 3866 | ppc_stub_long_branch: | |
| 3867 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3868 | destination, but a 24 bit branch in a stub section will reach. | |
| 3869 | . b dest | |
| 3870 | ||
| 3871 | ppc_stub_plt_branch: | |
| 3872 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3873 | reach its destination. | |
| 71a39c98 AM |
3874 | . addis %r11,%r2,xxx@toc@ha |
| 3875 | . ld %r12,xxx@toc@l(%r11) | |
| 3876 | . mtctr %r12 | |
| 721956f4 AM |
3877 | . bctr |
| 3878 | ||
| 3879 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3880 | Used to call a function in a shared library. If it so happens that |
| 3881 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3882 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3883 | . std %r2,40(%r1) |
| 71a39c98 AM |
3884 | . addis %r11,%r2,xxx@toc@ha |
| 3885 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3886 | . mtctr %r12 | |
| 3887 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3888 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3889 | . bctr |
| ad8e1ba5 AM |
3890 | |
| 3891 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3892 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3893 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3894 | . std %r2,40(%r1) | |
| 3895 | . addis %r2,%r2,off@ha | |
| 3896 | . addi %r2,%r2,off@l | |
| 3897 | . b dest | |
| 3898 | ||
| 3899 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3900 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3901 | . addis %r11,%r2,xxx@toc@ha |
| 3902 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3903 | . addis %r2,%r2,off@ha |
| 3904 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3905 | . mtctr %r12 |
| ad8e1ba5 | 3906 | . bctr |
| ac2df442 AM |
3907 | |
| 3908 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3909 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3910 | */ |
| 3911 | ||
| 3912 | enum ppc_stub_type { | |
| 3913 | ppc_stub_none, | |
| 3914 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3915 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3916 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3917 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3918 | ppc_stub_plt_call, |
| 7341d5e2 | 3919 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3920 | ppc_stub_global_entry, |
| 3921 | ppc_stub_save_res | |
| 721956f4 AM |
3922 | }; |
| 3923 | ||
| 6f20ed8a AM |
3924 | /* Information on stub grouping. */ |
| 3925 | struct map_stub | |
| 3926 | { | |
| 3927 | /* The stub section. */ | |
| 3928 | asection *stub_sec; | |
| 3929 | /* This is the section to which stubs in the group will be attached. */ | |
| 3930 | asection *link_sec; | |
| a4b6fadd AM |
3931 | /* Next group. */ |
| 3932 | struct map_stub *next; | |
| 3933 | /* Whether to emit a copy of register save/restore functions in this | |
| 3934 | group. */ | |
| 3935 | int needs_save_res; | |
| d4aaa2a0 AM |
3936 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 3937 | or -1u if no such stub with bctrl exists. */ | |
| 3938 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
3939 | }; |
| 3940 | ||
| 721956f4 AM |
3941 | struct ppc_stub_hash_entry { |
| 3942 | ||
| 3943 | /* Base hash table entry structure. */ | |
| 3944 | struct bfd_hash_entry root; | |
| 3945 | ||
| ad8e1ba5 AM |
3946 | enum ppc_stub_type stub_type; |
| 3947 | ||
| 6f20ed8a AM |
3948 | /* Group information. */ |
| 3949 | struct map_stub *group; | |
| 721956f4 AM |
3950 | |
| 3951 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3952 | bfd_vma stub_offset; | |
| 3953 | ||
| 3954 | /* Given the symbol's value and its section we can determine its final | |
| 3955 | value when building the stubs (so the stub knows where to jump. */ | |
| 3956 | bfd_vma target_value; | |
| 3957 | asection *target_section; | |
| 3958 | ||
| 721956f4 AM |
3959 | /* The symbol table entry, if any, that this was derived from. */ |
| 3960 | struct ppc_link_hash_entry *h; | |
| e054468f | 3961 | struct plt_entry *plt_ent; |
| 721956f4 | 3962 | |
| 6911b7dc AM |
3963 | /* Symbol st_other. */ |
| 3964 | unsigned char other; | |
| 721956f4 AM |
3965 | }; |
| 3966 | ||
| 3967 | struct ppc_branch_hash_entry { | |
| 3968 | ||
| 3969 | /* Base hash table entry structure. */ | |
| 3970 | struct bfd_hash_entry root; | |
| 3971 | ||
| c456f082 | 3972 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3973 | unsigned int offset; |
| 3974 | ||
| 3975 | /* Generation marker. */ | |
| 3976 | unsigned int iter; | |
| 3977 | }; | |
| 65f38f15 | 3978 | |
| 19e08130 AM |
3979 | /* Used to track dynamic relocations for local symbols. */ |
| 3980 | struct ppc_dyn_relocs | |
| 3981 | { | |
| 3982 | struct ppc_dyn_relocs *next; | |
| 3983 | ||
| 3984 | /* The input section of the reloc. */ | |
| 3985 | asection *sec; | |
| 3986 | ||
| 3987 | /* Total number of relocs copied for the input section. */ | |
| 3988 | unsigned int count : 31; | |
| 3989 | ||
| 3990 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3991 | unsigned int ifunc : 1; | |
| 3992 | }; | |
| 3993 | ||
| 65f38f15 AM |
3994 | struct ppc_link_hash_entry |
| 3995 | { | |
| 3996 | struct elf_link_hash_entry elf; | |
| 3997 | ||
| b3fac117 AM |
3998 | union { |
| 3999 | /* A pointer to the most recently used stub hash entry against this | |
| 4000 | symbol. */ | |
| 4001 | struct ppc_stub_hash_entry *stub_cache; | |
| 4002 | ||
| 4003 | /* A pointer to the next symbol starting with a '.' */ | |
| 4004 | struct ppc_link_hash_entry *next_dot_sym; | |
| 4005 | } u; | |
| 721956f4 | 4006 | |
| 65f38f15 | 4007 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4008 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4009 | |
| 721956f4 | 4010 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4011 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4012 | |
| e86ce104 AM |
4013 | /* Flag function code and descriptor symbols. */ |
| 4014 | unsigned int is_func:1; | |
| 4015 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4016 | unsigned int fake:1; |
| 411e1bfb | 4017 | |
| c5614fa4 AM |
4018 | /* Whether global opd/toc sym has been adjusted or not. |
| 4019 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4020 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4021 | unsigned int adjust_done:1; |
| 4022 | ||
| a4b6fadd AM |
4023 | /* Set if this is an out-of-line register save/restore function, |
| 4024 | with non-standard calling convention. */ | |
| 4025 | unsigned int save_res:1; | |
| 4026 | ||
| 8b5f1ed8 AM |
4027 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4028 | even when the duplicate symbol does not provide a definition. */ | |
| 4029 | unsigned int non_zero_localentry:1; | |
| 4030 | ||
| 411e1bfb | 4031 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
4032 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 4033 | corresponding relocs are encountered during check_relocs. | |
| 4034 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 4035 | indicate the corresponding GOT entry type is not needed. | |
| 4036 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 4037 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 4038 | just for convenience in distinguishing the two cases. */ | |
| 4039 | #define TLS_GD 1 /* GD reloc. */ | |
| 4040 | #define TLS_LD 2 /* LD reloc. */ | |
| 4041 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 4042 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4043 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4044 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4045 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4046 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4047 | unsigned char tls_mask; |
| 65f38f15 AM |
4048 | }; |
| 4049 | ||
| 4050 | /* ppc64 ELF linker hash table. */ | |
| 4051 | ||
| 4052 | struct ppc_link_hash_table | |
| 4053 | { | |
| 4054 | struct elf_link_hash_table elf; | |
| 4055 | ||
| 721956f4 AM |
4056 | /* The stub hash table. */ |
| 4057 | struct bfd_hash_table stub_hash_table; | |
| 4058 | ||
| 4059 | /* Another hash table for plt_branch stubs. */ | |
| 4060 | struct bfd_hash_table branch_hash_table; | |
| 4061 | ||
| 3b421ab3 AM |
4062 | /* Hash table for function prologue tocsave. */ |
| 4063 | htab_t tocsave_htab; | |
| 4064 | ||
| e7d1c40c AM |
4065 | /* Various options and other info passed from the linker. */ |
| 4066 | struct ppc64_elf_params *params; | |
| 721956f4 | 4067 | |
| 6f20ed8a AM |
4068 | /* The size of sec_info below. */ |
| 4069 | unsigned int sec_info_arr_size; | |
| 4070 | ||
| 4071 | /* Per-section array of extra section info. Done this way rather | |
| 4072 | than as part of ppc64_elf_section_data so we have the info for | |
| 4073 | non-ppc64 sections. */ | |
| 4074 | struct | |
| 4075 | { | |
| 4076 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4077 | bfd_vma toc_off; |
| 6f20ed8a AM |
4078 | |
| 4079 | union | |
| 4080 | { | |
| 4081 | /* The section group that this section belongs to. */ | |
| 4082 | struct map_stub *group; | |
| 4083 | /* A temp section list pointer. */ | |
| 4084 | asection *list; | |
| 4085 | } u; | |
| 4086 | } *sec_info; | |
| 721956f4 | 4087 | |
| a4b6fadd AM |
4088 | /* Linked list of groups. */ |
| 4089 | struct map_stub *group; | |
| 4090 | ||
| ad8e1ba5 AM |
4091 | /* Temp used when calculating TOC pointers. */ |
| 4092 | bfd_vma toc_curr; | |
| bf102f86 AM |
4093 | bfd *toc_bfd; |
| 4094 | asection *toc_first_sec; | |
| ad8e1ba5 | 4095 | |
| b3fac117 AM |
4096 | /* Used when adding symbols. */ |
| 4097 | struct ppc_link_hash_entry *dot_syms; | |
| 4098 | ||
| 33e44f2e | 4099 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4100 | asection *glink; |
| 9e390558 | 4101 | asection *global_entry; |
| 82bd7b59 | 4102 | asection *sfpr; |
| 4ce794b7 AM |
4103 | asection *brlt; |
| 4104 | asection *relbrlt; | |
| 58d180e8 | 4105 | asection *glink_eh_frame; |
| ec338859 | 4106 | |
| 8387904d AM |
4107 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4108 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4109 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4110 | |
| 927be08e AM |
4111 | /* The size of reliplt used by got entry relocs. */ |
| 4112 | bfd_size_type got_reli_size; | |
| 4113 | ||
| 9b5ecbd0 | 4114 | /* Statistics. */ |
| 7341d5e2 | 4115 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4116 | |
| ee75fd95 AM |
4117 | /* Number of stubs against global syms. */ |
| 4118 | unsigned long stub_globals; | |
| 4119 | ||
| ee67d69a AM |
4120 | /* Set if we're linking code with function descriptors. */ |
| 4121 | unsigned int opd_abi:1; | |
| 4122 | ||
| 4c52953f | 4123 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4124 | unsigned int do_multi_toc:1; |
| 4c52953f | 4125 | unsigned int multi_toc_needed:1; |
| 927be08e | 4126 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4127 | unsigned int do_toc_opt:1; |
| 4c52953f | 4128 | |
| 9a23f96e AM |
4129 | /* Set if tls optimization is enabled. */ |
| 4130 | unsigned int do_tls_opt:1; | |
| 4131 | ||
| 5d1634d7 | 4132 | /* Set on error. */ |
| 99877b66 | 4133 | unsigned int stub_error:1; |
| 721956f4 | 4134 | |
| 8c5b4e52 AM |
4135 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4136 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4137 | |
| 82e66161 AM |
4138 | /* Whether there exist local gnu indirect function resolvers, |
| 4139 | referenced by dynamic relocations. */ | |
| 4140 | unsigned int local_ifunc_resolver:1; | |
| 4141 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4142 | ||
| f378ab09 AM |
4143 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4144 | unsigned int has_plt_localentry0:1; | |
| 4145 | ||
| 721956f4 AM |
4146 | /* Incremented every time we size stubs. */ |
| 4147 | unsigned int stub_iteration; | |
| 5d1634d7 | 4148 | |
| 87d72d41 AM |
4149 | /* Small local sym cache. */ |
| 4150 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4151 | }; |
| 4152 | ||
| 4c52953f AM |
4153 | /* Rename some of the generic section flags to better document how they |
| 4154 | are used here. */ | |
| b0dddeec AM |
4155 | |
| 4156 | /* Nonzero if this section has TLS related relocations. */ | |
| 4157 | #define has_tls_reloc sec_flg0 | |
| 4158 | ||
| 4159 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4160 | #define has_tls_get_addr_call sec_flg1 | |
| 4161 | ||
| 4162 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4163 | #define has_toc_reloc sec_flg2 | |
| 4164 | ||
| 4165 | /* Nonzero if this section has a call to another section that uses | |
| 4166 | the toc or got. */ | |
| d77c8a4b | 4167 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4168 | |
| 4169 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4170 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4171 | #define call_check_done sec_flg5 |
| 4c52953f | 4172 | |
| 65f38f15 AM |
4173 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4174 | ||
| 4175 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4176 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4177 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4178 | |
| 721956f4 AM |
4179 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4180 | ((struct ppc_stub_hash_entry *) \ | |
| 4181 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4182 | ||
| 4183 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4184 | ((struct ppc_branch_hash_entry *) \ | |
| 4185 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4186 | ||
| 4187 | /* Create an entry in the stub hash table. */ | |
| 4188 | ||
| 4189 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4190 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4191 | struct bfd_hash_table *table, | |
| 4192 | const char *string) | |
| 721956f4 AM |
4193 | { |
| 4194 | /* Allocate the structure if it has not already been allocated by a | |
| 4195 | subclass. */ | |
| 4196 | if (entry == NULL) | |
| 4197 | { | |
| 4198 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4199 | if (entry == NULL) | |
| 4200 | return entry; | |
| 4201 | } | |
| 4202 | ||
| 4203 | /* Call the allocation method of the superclass. */ | |
| 4204 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4205 | if (entry != NULL) | |
| 4206 | { | |
| 4207 | struct ppc_stub_hash_entry *eh; | |
| 4208 | ||
| 4209 | /* Initialize the local fields. */ | |
| 4210 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4211 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4212 | eh->group = NULL; |
| 721956f4 AM |
4213 | eh->stub_offset = 0; |
| 4214 | eh->target_value = 0; | |
| 4215 | eh->target_section = NULL; | |
| 721956f4 | 4216 | eh->h = NULL; |
| 6911b7dc | 4217 | eh->plt_ent = NULL; |
| 6911b7dc | 4218 | eh->other = 0; |
| 721956f4 AM |
4219 | } |
| 4220 | ||
| 4221 | return entry; | |
| 4222 | } | |
| 4223 | ||
| 4224 | /* Create an entry in the branch hash table. */ | |
| 4225 | ||
| 4226 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4227 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4228 | struct bfd_hash_table *table, | |
| 4229 | const char *string) | |
| 721956f4 AM |
4230 | { |
| 4231 | /* Allocate the structure if it has not already been allocated by a | |
| 4232 | subclass. */ | |
| 4233 | if (entry == NULL) | |
| 4234 | { | |
| 4235 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4236 | if (entry == NULL) | |
| 4237 | return entry; | |
| 4238 | } | |
| 4239 | ||
| 4240 | /* Call the allocation method of the superclass. */ | |
| 4241 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4242 | if (entry != NULL) | |
| 4243 | { | |
| 4244 | struct ppc_branch_hash_entry *eh; | |
| 4245 | ||
| 4246 | /* Initialize the local fields. */ | |
| 4247 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4248 | eh->offset = 0; | |
| 4249 | eh->iter = 0; | |
| 4250 | } | |
| 4251 | ||
| 4252 | return entry; | |
| 4253 | } | |
| 4254 | ||
| 65f38f15 AM |
4255 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4256 | ||
| 4257 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4258 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4259 | struct bfd_hash_table *table, | |
| 4260 | const char *string) | |
| 65f38f15 AM |
4261 | { |
| 4262 | /* Allocate the structure if it has not already been allocated by a | |
| 4263 | subclass. */ | |
| 4264 | if (entry == NULL) | |
| 4265 | { | |
| 4266 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4267 | if (entry == NULL) | |
| 4268 | return entry; | |
| 4269 | } | |
| 4270 | ||
| 4271 | /* Call the allocation method of the superclass. */ | |
| 4272 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4273 | if (entry != NULL) | |
| 4274 | { | |
| 4275 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4276 | ||
| b3fac117 | 4277 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4278 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4279 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4280 | ||
| 4281 | /* When making function calls, old ABI code references function entry | |
| 4282 | points (dot symbols), while new ABI code references the function | |
| 4283 | descriptor symbol. We need to make any combination of reference and | |
| 4284 | definition work together, without breaking archive linking. | |
| 4285 | ||
| 4286 | For a defined function "foo" and an undefined call to "bar": | |
| 4287 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4288 | "bar" too). | |
| 4289 | A new object defines "foo" and references "bar". | |
| 4290 | ||
| 4291 | A new object thus has no problem with its undefined symbols being | |
| 4292 | satisfied by definitions in an old object. On the other hand, the | |
| 4293 | old object won't have ".bar" satisfied by a new object. | |
| 4294 | ||
| 4295 | Keep a list of newly added dot-symbols. */ | |
| 4296 | ||
| 4297 | if (string[0] == '.') | |
| 4298 | { | |
| 4299 | struct ppc_link_hash_table *htab; | |
| 4300 | ||
| 4301 | htab = (struct ppc_link_hash_table *) table; | |
| 4302 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4303 | htab->dot_syms = eh; | |
| 4304 | } | |
| 65f38f15 AM |
4305 | } |
| 4306 | ||
| 4307 | return entry; | |
| 4308 | } | |
| 4309 | ||
| 3b421ab3 AM |
4310 | struct tocsave_entry { |
| 4311 | asection *sec; | |
| 4312 | bfd_vma offset; | |
| 4313 | }; | |
| 4314 | ||
| 4315 | static hashval_t | |
| 4316 | tocsave_htab_hash (const void *p) | |
| 4317 | { | |
| 4318 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4319 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4320 | } |
| 4321 | ||
| 4322 | static int | |
| 4323 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4324 | { | |
| 4325 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4326 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4327 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4328 | } | |
| 4329 | ||
| 68faa637 AM |
4330 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4331 | ||
| 4332 | static void | |
| d495ab0d | 4333 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4334 | { |
| d495ab0d | 4335 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4336 | |
| d495ab0d | 4337 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4338 | if (htab->tocsave_htab) |
| 4339 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4340 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4341 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4342 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4343 | } |
| 4344 | ||
| 65f38f15 AM |
4345 | /* Create a ppc64 ELF linker hash table. */ |
| 4346 | ||
| 4347 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4348 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4349 | { |
| 4350 | struct ppc_link_hash_table *htab; | |
| 4351 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4352 | ||
| 4ce794b7 | 4353 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4354 | if (htab == NULL) |
| 4355 | return NULL; | |
| 4356 | ||
| 66eb6687 | 4357 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4358 | sizeof (struct ppc_link_hash_entry), |
| 4359 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4360 | { |
| e2d34d7d | 4361 | free (htab); |
| 65f38f15 AM |
4362 | return NULL; |
| 4363 | } | |
| 4364 | ||
| 721956f4 | 4365 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4366 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4367 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4368 | { |
| d495ab0d | 4369 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4370 | return NULL; |
| 4371 | } | |
| 721956f4 AM |
4372 | |
| 4373 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4374 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4375 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4376 | { |
| 4377 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4378 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4379 | return NULL; |
| 4380 | } | |
| 721956f4 | 4381 | |
| 3b421ab3 AM |
4382 | htab->tocsave_htab = htab_try_create (1024, |
| 4383 | tocsave_htab_hash, | |
| 4384 | tocsave_htab_eq, | |
| 4385 | NULL); | |
| 4386 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4387 | { |
| d495ab0d | 4388 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4389 | return NULL; |
| 4390 | } | |
| d495ab0d | 4391 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4392 | |
| 3254fd24 AM |
4393 | /* Initializing two fields of the union is just cosmetic. We really |
| 4394 | only care about glist, but when compiled on a 32-bit host the | |
| 4395 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4396 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4397 | htab->elf.init_got_refcount.refcount = 0; |
| 4398 | htab->elf.init_got_refcount.glist = NULL; | |
| 4399 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4400 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4401 | htab->elf.init_got_offset.offset = 0; | |
| 4402 | htab->elf.init_got_offset.glist = NULL; | |
| 4403 | htab->elf.init_plt_offset.offset = 0; | |
| 4404 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4405 | |
| 65f38f15 AM |
4406 | return &htab->elf.root; |
| 4407 | } | |
| 4408 | ||
| bfeb4a28 AM |
4409 | /* Create sections for linker generated code. */ |
| 4410 | ||
| 4411 | static bfd_boolean | |
| 4412 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4413 | { | |
| 4414 | struct ppc_link_hash_table *htab; | |
| 4415 | flagword flags; | |
| 4416 | ||
| 4417 | htab = ppc_hash_table (info); | |
| 4418 | ||
| bfeb4a28 AM |
4419 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4420 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4421 | if (htab->params->save_restore_funcs) |
| 4422 | { | |
| 4423 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4424 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4425 | flags); | |
| 4426 | if (htab->sfpr == NULL | |
| 4427 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4428 | return FALSE; | |
| 4429 | } | |
| 4430 | ||
| 4431 | if (bfd_link_relocatable (info)) | |
| 4432 | return TRUE; | |
| bfeb4a28 AM |
4433 | |
| 4434 | /* Create .glink for lazy dynamic linking support. */ | |
| 4435 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4436 | flags); | |
| 4437 | if (htab->glink == NULL | |
| 4438 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4439 | return FALSE; | |
| 4440 | ||
| 9e390558 AM |
4441 | /* The part of .glink used by global entry stubs, separate so that |
| 4442 | it can be aligned appropriately without affecting htab->glink. */ | |
| 4443 | htab->global_entry = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4444 | flags); | |
| 4445 | if (htab->global_entry == NULL | |
| 4446 | || ! bfd_set_section_alignment (dynobj, htab->global_entry, 2)) | |
| 4447 | return FALSE; | |
| 4448 | ||
| bfeb4a28 AM |
4449 | if (!info->no_ld_generated_unwind_info) |
| 4450 | { | |
| 4451 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4452 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4453 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4454 | ".eh_frame", | |
| 4455 | flags); | |
| 4456 | if (htab->glink_eh_frame == NULL | |
| 4457 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4458 | return FALSE; | |
| 4459 | } | |
| 4460 | ||
| 4461 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4462 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4463 | if (htab->elf.iplt == NULL | |
| 4464 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4465 | return FALSE; |
| 4466 | ||
| 4467 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4468 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4469 | htab->elf.irelplt |
| 4470 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4471 | if (htab->elf.irelplt == NULL | |
| 4472 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4473 | return FALSE; |
| 4474 | ||
| 4475 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4476 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4477 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4478 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4479 | flags); | |
| 4480 | if (htab->brlt == NULL | |
| 4481 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4482 | return FALSE; | |
| 4483 | ||
| 0e1862bb | 4484 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4485 | return TRUE; |
| 4486 | ||
| 4487 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4488 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4489 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4490 | ".rela.branch_lt", | |
| 4491 | flags); | |
| 4492 | if (htab->relbrlt == NULL | |
| 4493 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4494 | return FALSE; | |
| 4495 | ||
| 4496 | return TRUE; | |
| 4497 | } | |
| 4498 | ||
| e717da7e AM |
4499 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4500 | ||
| bfeb4a28 | 4501 | bfd_boolean |
| e7d1c40c AM |
4502 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4503 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4504 | { |
| 4505 | struct ppc_link_hash_table *htab; | |
| 4506 | ||
| e7d1c40c | 4507 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4508 | |
| 4509 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4510 | linker created stub bfd. This ensures that the GOT header is at | |
| 4511 | the start of the output TOC section. */ | |
| 4512 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4513 | htab->elf.dynobj = params->stub_bfd; |
| 4514 | htab->params = params; | |
| bfeb4a28 | 4515 | |
| bfeb4a28 | 4516 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4517 | } |
| 4518 | ||
| 721956f4 AM |
4519 | /* Build a name for an entry in the stub hash table. */ |
| 4520 | ||
| 4521 | static char * | |
| 4ce794b7 AM |
4522 | ppc_stub_name (const asection *input_section, |
| 4523 | const asection *sym_sec, | |
| 4524 | const struct ppc_link_hash_entry *h, | |
| 4525 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4526 | { |
| 4527 | char *stub_name; | |
| bcaa2f82 | 4528 | ssize_t len; |
| 721956f4 AM |
4529 | |
| 4530 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4531 | offsets from a sym as a branch target? In fact, we could | |
| 4532 | probably assume the addend is always zero. */ | |
| 4533 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4534 | ||
| 4535 | if (h) | |
| 4536 | { | |
| 4537 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4538 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4539 | if (stub_name == NULL) |
| 4540 | return stub_name; | |
| 4541 | ||
| bcaa2f82 AM |
4542 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4543 | input_section->id & 0xffffffff, | |
| 4544 | h->elf.root.root.string, | |
| 4545 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4546 | } |
| 4547 | else | |
| 4548 | { | |
| ad8e1ba5 | 4549 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4550 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4551 | if (stub_name == NULL) |
| 4552 | return stub_name; | |
| 4553 | ||
| bcaa2f82 AM |
4554 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4555 | input_section->id & 0xffffffff, | |
| 4556 | sym_sec->id & 0xffffffff, | |
| 4557 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4558 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4559 | } |
| bcaa2f82 | 4560 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4561 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4562 | return stub_name; |
| 4563 | } | |
| 4564 | ||
| 4565 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4566 | creating the stub name takes a bit of time. */ | |
| 4567 | ||
| 4568 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4569 | ppc_get_stub_entry (const asection *input_section, |
| 4570 | const asection *sym_sec, | |
| 039b3fef | 4571 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4572 | const Elf_Internal_Rela *rel, |
| 4573 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4574 | { |
| 4575 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4576 | struct map_stub *group; |
| 721956f4 AM |
4577 | |
| 4578 | /* If this input section is part of a group of sections sharing one | |
| 4579 | stub section, then use the id of the first section in the group. | |
| 4580 | Stub names need to include a section id, as there may well be | |
| 4581 | more than one stub used to reach say, printf, and we need to | |
| 4582 | distinguish between them. */ | |
| 6f20ed8a | 4583 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4584 | if (group == NULL) |
| 4585 | return NULL; | |
| 721956f4 | 4586 | |
| b3fac117 AM |
4587 | if (h != NULL && h->u.stub_cache != NULL |
| 4588 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4589 | && h->u.stub_cache->group == group) |
| 721956f4 | 4590 | { |
| b3fac117 | 4591 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4592 | } |
| 4593 | else | |
| 4594 | { | |
| 4595 | char *stub_name; | |
| 4596 | ||
| 6f20ed8a | 4597 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4598 | if (stub_name == NULL) |
| 4599 | return NULL; | |
| 4600 | ||
| 4601 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4602 | stub_name, FALSE, FALSE); |
| 721956f4 | 4603 | if (h != NULL) |
| b3fac117 | 4604 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4605 | |
| 4606 | free (stub_name); | |
| 4607 | } | |
| 4608 | ||
| 4609 | return stub_entry; | |
| 4610 | } | |
| 4611 | ||
| 4612 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4613 | stub entry are initialised. */ | |
| 4614 | ||
| 4615 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4616 | ppc_add_stub (const char *stub_name, |
| 4617 | asection *section, | |
| 25f53a85 | 4618 | struct bfd_link_info *info) |
| 721956f4 | 4619 | { |
| 25f53a85 | 4620 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4621 | struct map_stub *group; |
| 721956f4 AM |
4622 | asection *link_sec; |
| 4623 | asection *stub_sec; | |
| 4624 | struct ppc_stub_hash_entry *stub_entry; | |
| 4625 | ||
| 6f20ed8a AM |
4626 | group = htab->sec_info[section->id].u.group; |
| 4627 | link_sec = group->link_sec; | |
| 4628 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4629 | if (stub_sec == NULL) |
| 4630 | { | |
| 6f20ed8a AM |
4631 | size_t namelen; |
| 4632 | bfd_size_type len; | |
| 4633 | char *s_name; | |
| 721956f4 | 4634 | |
| 6f20ed8a AM |
4635 | namelen = strlen (link_sec->name); |
| 4636 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4637 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4638 | if (s_name == NULL) | |
| 4639 | return NULL; | |
| 721956f4 | 4640 | |
| 6f20ed8a AM |
4641 | memcpy (s_name, link_sec->name, namelen); |
| 4642 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4643 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4644 | if (stub_sec == NULL) | |
| 4645 | return NULL; | |
| 4646 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4647 | } |
| 4648 | ||
| 4649 | /* Enter this entry into the linker stub hash table. */ | |
| 4650 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4651 | TRUE, FALSE); |
| 721956f4 AM |
4652 | if (stub_entry == NULL) |
| 4653 | { | |
| 695344c0 | 4654 | /* xgettext:c-format */ |
| 8de848d8 | 4655 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4656 | section->owner, stub_name); |
| 721956f4 AM |
4657 | return NULL; |
| 4658 | } | |
| 4659 | ||
| 6f20ed8a | 4660 | stub_entry->group = group; |
| 721956f4 | 4661 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4662 | return stub_entry; |
| 4663 | } | |
| 4664 | ||
| e717da7e AM |
4665 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4666 | not already done. */ | |
| 65f38f15 | 4667 | |
| b34976b6 | 4668 | static bfd_boolean |
| e717da7e | 4669 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4670 | { |
| e717da7e AM |
4671 | asection *got, *relgot; |
| 4672 | flagword flags; | |
| 4673 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4674 | |
| 0c8d6e5c | 4675 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4676 | return FALSE; |
| 4dfe6ac6 NC |
4677 | if (htab == NULL) |
| 4678 | return FALSE; | |
| 0ffa91dd | 4679 | |
| 33e44f2e AM |
4680 | if (!htab->elf.sgot |
| 4681 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4682 | return FALSE; | |
| e717da7e AM |
4683 | |
| 4684 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4685 | | SEC_LINKER_CREATED); | |
| 4686 | ||
| c456f082 | 4687 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4688 | if (!got |
| e717da7e AM |
4689 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4690 | return FALSE; | |
| 65f38f15 | 4691 | |
| c456f082 AM |
4692 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4693 | flags | SEC_READONLY); | |
| e717da7e | 4694 | if (!relgot |
| e717da7e | 4695 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4696 | return FALSE; |
| e717da7e AM |
4697 | |
| 4698 | ppc64_elf_tdata (abfd)->got = got; | |
| 4699 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4700 | return TRUE; |
| 65f38f15 | 4701 | } |
| 5bd4f169 | 4702 | |
| b31867b6 AM |
4703 | /* Follow indirect and warning symbol links. */ |
| 4704 | ||
| 4705 | static inline struct bfd_link_hash_entry * | |
| 4706 | follow_link (struct bfd_link_hash_entry *h) | |
| 4707 | { | |
| 4708 | while (h->type == bfd_link_hash_indirect | |
| 4709 | || h->type == bfd_link_hash_warning) | |
| 4710 | h = h->u.i.link; | |
| 4711 | return h; | |
| 4712 | } | |
| 4713 | ||
| 4714 | static inline struct elf_link_hash_entry * | |
| 4715 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4716 | { | |
| 4717 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4718 | } | |
| 4719 | ||
| 4720 | static inline struct ppc_link_hash_entry * | |
| 4721 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4722 | { | |
| 4723 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4724 | } | |
| 4725 | ||
| 40d16e0b AM |
4726 | /* Merge PLT info on FROM with that on TO. */ |
| 4727 | ||
| 4728 | static void | |
| 4729 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4730 | struct ppc_link_hash_entry *to) | |
| 4731 | { | |
| 4732 | if (from->elf.plt.plist != NULL) | |
| 4733 | { | |
| 4734 | if (to->elf.plt.plist != NULL) | |
| 4735 | { | |
| 4736 | struct plt_entry **entp; | |
| 4737 | struct plt_entry *ent; | |
| 4738 | ||
| 4739 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4740 | { | |
| 4741 | struct plt_entry *dent; | |
| 4742 | ||
| 4743 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4744 | if (dent->addend == ent->addend) | |
| 4745 | { | |
| 4746 | dent->plt.refcount += ent->plt.refcount; | |
| 4747 | *entp = ent->next; | |
| 4748 | break; | |
| 4749 | } | |
| 4750 | if (dent == NULL) | |
| 4751 | entp = &ent->next; | |
| 4752 | } | |
| 4753 | *entp = to->elf.plt.plist; | |
| 4754 | } | |
| 4755 | ||
| 4756 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4757 | from->elf.plt.plist = NULL; | |
| 4758 | } | |
| 4759 | } | |
| 4760 | ||
| 65f38f15 AM |
4761 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4762 | ||
| 4763 | static void | |
| fcfa13d2 AM |
4764 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4765 | struct elf_link_hash_entry *dir, | |
| 4766 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4767 | { |
| 4768 | struct ppc_link_hash_entry *edir, *eind; | |
| 4769 | ||
| 4770 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4771 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4772 | ||
| c79d6685 AM |
4773 | edir->is_func |= eind->is_func; |
| 4774 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4775 | edir->tls_mask |= eind->tls_mask; | |
| 4776 | if (eind->oh != NULL) | |
| 4777 | edir->oh = ppc_follow_link (eind->oh); | |
| 4778 | ||
| 474436e6 | 4779 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4780 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4781 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4782 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4a7e5234 | 4783 | edir->elf.non_got_ref |= eind->elf.non_got_ref; |
| e81830c5 AM |
4784 | edir->elf.needs_plt |= eind->elf.needs_plt; |
| 4785 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4786 | |
| d311bc8b AM |
4787 | /* If we were called to copy over info for a weak sym, don't copy |
| 4788 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4789 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4790 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4791 | tests about a specific symbol, or affect other symbol flags which | |
| ab2477e1 | 4792 | are then tested. */ |
| d311bc8b | 4793 | if (eind->elf.root.type != bfd_link_hash_indirect) |
| ab2477e1 | 4794 | return; |
| d311bc8b | 4795 | |
| 411e1bfb | 4796 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4797 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4798 | { |
| bbd7ec4a AM |
4799 | if (edir->dyn_relocs != NULL) |
| 4800 | { | |
| 6061a67d AM |
4801 | struct elf_dyn_relocs **pp; |
| 4802 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4803 | |
| fcfa13d2 | 4804 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4805 | list. Merge any entries against the same section. */ |
| 4806 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4807 | { | |
| 6061a67d | 4808 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4809 | |
| 4810 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4811 | if (q->sec == p->sec) | |
| 4812 | { | |
| 4813 | q->pc_count += p->pc_count; | |
| 4814 | q->count += p->count; | |
| 4815 | *pp = p->next; | |
| 4816 | break; | |
| 4817 | } | |
| 4818 | if (q == NULL) | |
| 4819 | pp = &p->next; | |
| 4820 | } | |
| 4821 | *pp = edir->dyn_relocs; | |
| 4822 | } | |
| 4823 | ||
| 65f38f15 AM |
4824 | edir->dyn_relocs = eind->dyn_relocs; |
| 4825 | eind->dyn_relocs = NULL; | |
| 4826 | } | |
| 65f38f15 | 4827 | |
| 81848ca0 AM |
4828 | /* Copy over got entries that we may have already seen to the |
| 4829 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4830 | if (eind->elf.got.glist != NULL) |
| 4831 | { | |
| 4832 | if (edir->elf.got.glist != NULL) | |
| 4833 | { | |
| 4834 | struct got_entry **entp; | |
| 4835 | struct got_entry *ent; | |
| 4836 | ||
| 4837 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4838 | { | |
| 4839 | struct got_entry *dent; | |
| 4840 | ||
| 4841 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4842 | if (dent->addend == ent->addend | |
| e717da7e | 4843 | && dent->owner == ent->owner |
| 411e1bfb AM |
4844 | && dent->tls_type == ent->tls_type) |
| 4845 | { | |
| 4846 | dent->got.refcount += ent->got.refcount; | |
| 4847 | *entp = ent->next; | |
| 4848 | break; | |
| 4849 | } | |
| 4850 | if (dent == NULL) | |
| 4851 | entp = &ent->next; | |
| 4852 | } | |
| 4853 | *entp = edir->elf.got.glist; | |
| 4854 | } | |
| 4855 | ||
| 4856 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4857 | eind->elf.got.glist = NULL; | |
| 4858 | } | |
| 4859 | ||
| 4860 | /* And plt entries. */ | |
| 40d16e0b | 4861 | move_plt_plist (eind, edir); |
| 411e1bfb | 4862 | |
| fcfa13d2 | 4863 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4864 | { |
| fcfa13d2 AM |
4865 | if (edir->elf.dynindx != -1) |
| 4866 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4867 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4868 | edir->elf.dynindx = eind->elf.dynindx; |
| 4869 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4870 | eind->elf.dynindx = -1; | |
| 4871 | eind->elf.dynstr_index = 0; | |
| 4872 | } | |
| 411e1bfb AM |
4873 | } |
| 4874 | ||
| 8387904d AM |
4875 | /* Find the function descriptor hash entry from the given function code |
| 4876 | hash entry FH. Link the entries via their OH fields. */ | |
| 4877 | ||
| 4878 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4879 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4880 | { |
| 4881 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4882 | ||
| 4883 | if (fdh == NULL) | |
| 4884 | { | |
| 4885 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4886 | ||
| 4887 | fdh = (struct ppc_link_hash_entry *) | |
| 4888 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4889 | if (fdh == NULL) |
| 4890 | return fdh; | |
| 4891 | ||
| 4892 | fdh->is_func_descriptor = 1; | |
| 4893 | fdh->oh = fh; | |
| 4894 | fh->is_func = 1; | |
| 4895 | fh->oh = fdh; | |
| 8387904d AM |
4896 | } |
| 4897 | ||
| 8c5b4e52 AM |
4898 | fdh = ppc_follow_link (fdh); |
| 4899 | fdh->is_func_descriptor = 1; | |
| 4900 | fdh->oh = fh; | |
| 4901 | return fdh; | |
| 8387904d AM |
4902 | } |
| 4903 | ||
| 8c5b4e52 | 4904 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4905 | |
| 4906 | static struct ppc_link_hash_entry * | |
| 4907 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4908 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4909 | { |
| 8c5b4e52 AM |
4910 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4911 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4912 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4913 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4914 | ? BSF_WEAK | |
| 4915 | : BSF_GLOBAL); | |
| 4916 | ||
| 4917 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4918 | fh->elf.root.root.string + 1, | |
| 4919 | flags, bfd_und_section_ptr, 0, | |
| 4920 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4921 | return NULL; |
| 4922 | ||
| 4923 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4924 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4925 | fdh->fake = 1; |
| 4926 | fdh->is_func_descriptor = 1; | |
| 4927 | fdh->oh = fh; | |
| 4928 | fh->is_func = 1; | |
| 4929 | fh->oh = fdh; | |
| bb700d78 AM |
4930 | return fdh; |
| 4931 | } | |
| 4932 | ||
| 8387904d AM |
4933 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4934 | function type. */ | |
| 555cd476 AM |
4935 | |
| 4936 | static bfd_boolean | |
| c16153ae | 4937 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4938 | struct bfd_link_info *info, |
| 555cd476 | 4939 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4940 | const char **name, |
| 555cd476 AM |
4941 | flagword *flags ATTRIBUTE_UNUSED, |
| 4942 | asection **sec, | |
| b53dfeb2 | 4943 | bfd_vma *value) |
| 555cd476 | 4944 | { |
| a43942db | 4945 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4946 | && (ibfd->flags & DYNAMIC) == 0 |
| 4947 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4948 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4949 | |
| b53dfeb2 | 4950 | if (*sec != NULL |
| f1885d1e | 4951 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4952 | { |
| 4953 | asection *code_sec; | |
| 4954 | ||
| 4955 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4956 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4957 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4958 | ||
| 4959 | /* If the symbol is a function defined in .opd, and the function | |
| 4960 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4961 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4962 | && (*sec)->reloc_count != 0 |
| 4963 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4964 | FALSE) != (bfd_vma) -1 | |
| 4965 | && discarded_section (code_sec)) | |
| 4966 | { | |
| 4967 | *sec = bfd_und_section_ptr; | |
| 4968 | isym->st_shndx = SHN_UNDEF; | |
| 4969 | } | |
| 4970 | } | |
| dbd1e97e AM |
4971 | else if (*sec != NULL |
| 4972 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4973 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4974 | { | |
| 4975 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4976 | if (htab != NULL) | |
| 4977 | htab->params->object_in_toc = 1; | |
| 4978 | } | |
| 433817dd | 4979 | |
| 6911b7dc AM |
4980 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4981 | { | |
| 4982 | if (abiversion (ibfd) == 0) | |
| 4983 | set_abiversion (ibfd, 2); | |
| 4984 | else if (abiversion (ibfd) == 1) | |
| 4985 | { | |
| 4986 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4987 | " for ABI version 1\n"), name); | |
| 4988 | bfd_set_error (bfd_error_bad_value); | |
| 4989 | return FALSE; | |
| 4990 | } | |
| 4991 | } | |
| 4992 | ||
| 555cd476 AM |
4993 | return TRUE; |
| 4994 | } | |
| 4995 | ||
| 6911b7dc AM |
4996 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4997 | ||
| 4998 | static void | |
| 4999 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5000 | const Elf_Internal_Sym *isym, | |
| 5001 | bfd_boolean definition, | |
| 5002 | bfd_boolean dynamic) | |
| 5003 | { | |
| f378ab09 | 5004 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5005 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5006 | | ELF_ST_VISIBILITY (h->other)); | |
| 5007 | } | |
| 5008 | ||
| 8c5b4e52 AM |
5009 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5010 | we now have a real symbol. */ | |
| 5011 | ||
| 5012 | static bfd_boolean | |
| 5013 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5014 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5015 | asection **psec ATTRIBUTE_UNUSED, |
| 5016 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5017 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5018 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5019 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5020 | { | |
| 5021 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5022 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5023 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5024 | return TRUE; |
| 5025 | } | |
| 5026 | ||
| 8387904d | 5027 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5028 | inclusion of a new ABI object archive that defines "bar". |
| 5029 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5030 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5031 | |
| 5032 | static struct elf_link_hash_entry * | |
| 5033 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5034 | struct bfd_link_info *info, | |
| 5035 | const char *name) | |
| 5036 | { | |
| 5037 | struct elf_link_hash_entry *h; | |
| 5038 | char *dot_name; | |
| 5039 | size_t len; | |
| 5040 | ||
| 5041 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5042 | if (h != NULL |
| 5043 | /* Don't return this sym if it is a fake function descriptor | |
| 5044 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5045 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5046 | return h; |
| 5047 | ||
| 5048 | if (name[0] == '.') | |
| 5049 | return h; | |
| 5050 | ||
| 5051 | len = strlen (name); | |
| 5052 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5053 | if (dot_name == NULL) | |
| 5054 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 5055 | dot_name[0] = '.'; | |
| 5056 | memcpy (dot_name + 1, name, len + 1); | |
| 5057 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5058 | bfd_release (abfd, dot_name); | |
| 5059 | return h; | |
| 5060 | } | |
| 5061 | ||
| 5062 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5063 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5064 | are made weak. This stops later archive searches from including an | |
| 5065 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5066 | prevents the linker complaining about undefined symbols. |
| 5067 | We also check and correct mismatched symbol visibility here. The | |
| 5068 | most restrictive visibility of the function descriptor and the | |
| 5069 | function entry symbol is used. */ | |
| 8387904d AM |
5070 | |
| 5071 | static bfd_boolean | |
| b3fac117 | 5072 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5073 | { |
| 8387904d AM |
5074 | struct ppc_link_hash_table *htab; |
| 5075 | struct ppc_link_hash_entry *fdh; | |
| 5076 | ||
| b3fac117 AM |
5077 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5078 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5079 | |
| 8400d40d AM |
5080 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5081 | return TRUE; | |
| 5082 | ||
| b3fac117 AM |
5083 | if (eh->elf.root.root.string[0] != '.') |
| 5084 | abort (); | |
| 8387904d | 5085 | |
| b3fac117 | 5086 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5087 | if (htab == NULL) |
| 5088 | return FALSE; | |
| 5089 | ||
| b31867b6 | 5090 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5091 | if (fdh == NULL |
| 5092 | && !bfd_link_relocatable (info) | |
| 5093 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5094 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5095 | && eh->elf.ref_regular) | |
| 5096 | { | |
| 5097 | /* Make an undefined function descriptor sym, in order to | |
| 5098 | pull in an --as-needed shared lib. Archives are handled | |
| 5099 | elsewhere. */ | |
| 5100 | fdh = make_fdh (info, eh); | |
| 5101 | if (fdh == NULL) | |
| 5102 | return FALSE; | |
| bb700d78 | 5103 | } |
| 8c5b4e52 AM |
5104 | |
| 5105 | if (fdh != NULL) | |
| 8387904d | 5106 | { |
| 35b0ce59 AM |
5107 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5108 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5109 | |
| 5110 | /* Make both descriptor and entry symbol have the most | |
| 5111 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5112 | if (entry_vis < descr_vis) |
| 5113 | fdh->elf.other += entry_vis - descr_vis; | |
| 5114 | else if (entry_vis > descr_vis) | |
| 5115 | eh->elf.other += descr_vis - entry_vis; | |
| 5116 | ||
| 8c5b4e52 AM |
5117 | /* Propagate reference flags from entry symbol to function |
| 5118 | descriptor symbol. */ | |
| bc4e12de | 5119 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5120 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5121 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5122 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5123 | ||
| 5124 | if (!fdh->elf.forced_local | |
| 5125 | && fdh->elf.dynindx == -1 | |
| 5126 | && fdh->elf.versioned != versioned_hidden | |
| 5127 | && (bfd_link_dll (info) | |
| 5128 | || fdh->elf.def_dynamic | |
| 5129 | || fdh->elf.ref_dynamic) | |
| 5130 | && (eh->elf.ref_regular | |
| 5131 | || eh->elf.def_regular)) | |
| 5132 | { | |
| 5133 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5134 | return FALSE; | |
| 35b0ce59 | 5135 | } |
| 8387904d | 5136 | } |
| 99877b66 | 5137 | |
| 8387904d AM |
5138 | return TRUE; |
| 5139 | } | |
| 5140 | ||
| f6c7c3e8 AM |
5141 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5142 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5143 | |
| 8387904d | 5144 | static bfd_boolean |
| f6c7c3e8 | 5145 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5146 | { |
| 99877b66 | 5147 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5148 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5149 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5150 | |
| 459609d6 | 5151 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5152 | { |
| b9399fcf AM |
5153 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); |
| 5154 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| 5155 | ||
| 459609d6 AM |
5156 | if (abiversion (ibfd) == 0) |
| 5157 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5158 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5159 | { |
| 695344c0 | 5160 | /* xgettext:c-format */ |
| 459609d6 AM |
5161 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5162 | " version %d\n"), | |
| 5163 | ibfd, abiversion (ibfd)); | |
| 5164 | bfd_set_error (bfd_error_bad_value); | |
| 5165 | return FALSE; | |
| f6c7c3e8 | 5166 | } |
| b9399fcf | 5167 | } |
| f6c7c3e8 | 5168 | |
| b9399fcf AM |
5169 | if (is_ppc64_elf (info->output_bfd)) |
| 5170 | { | |
| 5171 | /* For input files without an explicit abiversion in e_flags | |
| 5172 | we should have flagged any with symbol st_other bits set | |
| 5173 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5174 | Set the output abiversion if not yet set, and for any input | |
| 5175 | still ambiguous, take its abiversion from the output. | |
| 5176 | Differences in ABI are reported later. */ | |
| 5177 | if (abiversion (info->output_bfd) == 0) | |
| 5178 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5179 | else if (abiversion (ibfd) == 0) | |
| 5180 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| b3fac117 AM |
5181 | } |
| 5182 | ||
| 459609d6 AM |
5183 | htab = ppc_hash_table (info); |
| 5184 | if (htab == NULL) | |
| b9399fcf | 5185 | return TRUE; |
| 459609d6 | 5186 | |
| b9399fcf AM |
5187 | if (opd != NULL && opd->size != 0 |
| 5188 | && (ibfd->flags & DYNAMIC) == 0 | |
| 5189 | && (opd->flags & SEC_RELOC) != 0 | |
| 5190 | && opd->reloc_count != 0 | |
| 5191 | && !bfd_is_abs_section (opd->output_section) | |
| 5192 | && info->gc_sections) | |
| 5193 | { | |
| 5194 | /* Garbage collection needs some extra help with .opd sections. | |
| 5195 | We don't want to necessarily keep everything referenced by | |
| 5196 | relocs in .opd, as that would keep all functions. Instead, | |
| 5197 | if we reference an .opd symbol (a function descriptor), we | |
| 5198 | want to keep the function code symbol's section. This is | |
| 5199 | easy for global symbols, but for local syms we need to keep | |
| 5200 | information about the associated function section. */ | |
| 5201 | bfd_size_type amt; | |
| 5202 | asection **opd_sym_map; | |
| 5203 | Elf_Internal_Shdr *symtab_hdr; | |
| 5204 | Elf_Internal_Rela *relocs, *rel_end, *rel; | |
| 5205 | ||
| 5206 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); | |
| 5207 | opd_sym_map = bfd_zalloc (ibfd, amt); | |
| 5208 | if (opd_sym_map == NULL) | |
| 5209 | return FALSE; | |
| 5210 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; | |
| 5211 | relocs = _bfd_elf_link_read_relocs (ibfd, opd, NULL, NULL, | |
| 5212 | info->keep_memory); | |
| 5213 | if (relocs == NULL) | |
| 5214 | return FALSE; | |
| 5215 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 5216 | rel_end = relocs + opd->reloc_count - 1; | |
| 5217 | for (rel = relocs; rel < rel_end; rel++) | |
| 5218 | { | |
| 5219 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 5220 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5221 | ||
| 5222 | if (r_type == R_PPC64_ADDR64 | |
| 5223 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC | |
| 5224 | && r_symndx < symtab_hdr->sh_info) | |
| 5225 | { | |
| 5226 | Elf_Internal_Sym *isym; | |
| 5227 | asection *s; | |
| 5228 | ||
| 5229 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, r_symndx); | |
| 5230 | if (isym == NULL) | |
| 5231 | { | |
| 5232 | if (elf_section_data (opd)->relocs != relocs) | |
| 5233 | free (relocs); | |
| 5234 | return FALSE; | |
| 5235 | } | |
| 5236 | ||
| 5237 | s = bfd_section_from_elf_index (ibfd, isym->st_shndx); | |
| 5238 | if (s != NULL && s != opd) | |
| 5239 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; | |
| 5240 | } | |
| 5241 | } | |
| 5242 | if (elf_section_data (opd)->relocs != relocs) | |
| 5243 | free (relocs); | |
| 5244 | } | |
| 459609d6 AM |
5245 | |
| 5246 | p = &htab->dot_syms; | |
| 5247 | while ((eh = *p) != NULL) | |
| 5248 | { | |
| 5249 | *p = NULL; | |
| 5250 | if (&eh->elf == htab->elf.hgot) | |
| 5251 | ; | |
| 5252 | else if (htab->elf.hgot == NULL | |
| 5253 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5254 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5255 | else if (abiversion (ibfd) <= 1) |
| 5256 | { | |
| 5257 | htab->need_func_desc_adj = 1; | |
| 5258 | if (!add_symbol_adjust (eh, info)) | |
| 5259 | return FALSE; | |
| 5260 | } | |
| 459609d6 AM |
5261 | p = &eh->u.next_dot_sym; |
| 5262 | } | |
| b3fac117 | 5263 | return TRUE; |
| 8387904d AM |
5264 | } |
| 5265 | ||
| 97fed1c9 JJ |
5266 | /* Undo hash table changes when an --as-needed input file is determined |
| 5267 | not to be needed. */ | |
| 5268 | ||
| 5269 | static bfd_boolean | |
| e5034e59 AM |
5270 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5271 | struct bfd_link_info *info, | |
| 5272 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5273 | { |
| e5034e59 AM |
5274 | if (act == notice_not_needed) |
| 5275 | { | |
| 5276 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5277 | |
| e5034e59 AM |
5278 | if (htab == NULL) |
| 5279 | return FALSE; | |
| 4dfe6ac6 | 5280 | |
| e5034e59 AM |
5281 | htab->dot_syms = NULL; |
| 5282 | } | |
| 5283 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5284 | } |
| 5285 | ||
| aa374f67 AM |
5286 | /* If --just-symbols against a final linked binary, then assume we need |
| 5287 | toc adjusting stubs when calling functions defined there. */ | |
| 5288 | ||
| 5289 | static void | |
| 5290 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5291 | { | |
| 5292 | if ((sec->flags & SEC_CODE) != 0 | |
| 5293 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5294 | && is_ppc64_elf (sec->owner)) | |
| 5295 | { | |
| 2c3f079f AM |
5296 | if (abiversion (sec->owner) >= 2 |
| 5297 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5298 | sec->has_toc_reloc = 1; |
| 5299 | } | |
| 5300 | _bfd_elf_link_just_syms (sec, info); | |
| 5301 | } | |
| 5302 | ||
| e054468f | 5303 | static struct plt_entry ** |
| 4ce794b7 AM |
5304 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5305 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5306 | { |
| 5307 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5308 | struct plt_entry **local_plt; |
| f961d9dd | 5309 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5310 | |
| 5311 | if (local_got_ents == NULL) | |
| 5312 | { | |
| 5313 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5314 | ||
| e054468f AM |
5315 | size *= (sizeof (*local_got_ents) |
| 5316 | + sizeof (*local_plt) | |
| 5317 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5318 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5319 | if (local_got_ents == NULL) |
| e054468f | 5320 | return NULL; |
| 411e1bfb AM |
5321 | elf_local_got_ents (abfd) = local_got_ents; |
| 5322 | } | |
| 5323 | ||
| e054468f | 5324 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5325 | { |
| 5326 | struct got_entry *ent; | |
| 5327 | ||
| 5328 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5329 | if (ent->addend == r_addend |
| 5330 | && ent->owner == abfd | |
| 5331 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5332 | break; |
| 5333 | if (ent == NULL) | |
| 5334 | { | |
| 5335 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5336 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5337 | if (ent == NULL) |
| 5338 | return FALSE; | |
| 5339 | ent->next = local_got_ents[r_symndx]; | |
| 5340 | ent->addend = r_addend; | |
| e717da7e | 5341 | ent->owner = abfd; |
| 411e1bfb | 5342 | ent->tls_type = tls_type; |
| 927be08e | 5343 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5344 | ent->got.refcount = 0; |
| 5345 | local_got_ents[r_symndx] = ent; | |
| 5346 | } | |
| 5347 | ent->got.refcount += 1; | |
| 5348 | } | |
| 5349 | ||
| e054468f | 5350 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5351 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5352 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5353 | |
| 5354 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5355 | } |
| 5356 | ||
| 411e1bfb | 5357 | static bfd_boolean |
| e054468f | 5358 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5359 | { |
| 411e1bfb | 5360 | struct plt_entry *ent; |
| 1e2f5b6e | 5361 | |
| e054468f | 5362 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5363 | if (ent->addend == addend) |
| 5364 | break; | |
| 5365 | if (ent == NULL) | |
| 1e2f5b6e | 5366 | { |
| 411e1bfb | 5367 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5368 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5369 | if (ent == NULL) |
| 5370 | return FALSE; | |
| e054468f | 5371 | ent->next = *plist; |
| 411e1bfb AM |
5372 | ent->addend = addend; |
| 5373 | ent->plt.refcount = 0; | |
| e054468f | 5374 | *plist = ent; |
| 1e2f5b6e | 5375 | } |
| 411e1bfb | 5376 | ent->plt.refcount += 1; |
| b34976b6 | 5377 | return TRUE; |
| 1e2f5b6e AM |
5378 | } |
| 5379 | ||
| e054468f AM |
5380 | static bfd_boolean |
| 5381 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5382 | { | |
| 5383 | return (r_type == R_PPC64_REL24 | |
| 5384 | || r_type == R_PPC64_REL14 | |
| 5385 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5386 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5387 | || r_type == R_PPC64_ADDR24 | |
| 5388 | || r_type == R_PPC64_ADDR14 | |
| 5389 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5390 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5391 | } | |
| 5392 | ||
| 5bd4f169 | 5393 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5394 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5395 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5396 | |
| b34976b6 | 5397 | static bfd_boolean |
| 4ce794b7 AM |
5398 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5399 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5400 | { |
| 65f38f15 | 5401 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5402 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5403 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5404 | const Elf_Internal_Rela *rel; |
| 5405 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5406 | asection *sreloc; |
| 3a71aa26 | 5407 | struct elf_link_hash_entry *tga, *dottga; |
| b9399fcf | 5408 | bfd_boolean is_opd; |
| 5bd4f169 | 5409 | |
| 0e1862bb | 5410 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5411 | return TRUE; |
| 5bd4f169 | 5412 | |
| 680a3378 AM |
5413 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5414 | In particular, any relocs in such sections should not affect GOT | |
| 5415 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5416 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5417 | relocs, and there's not much point in propagating relocs to shared | |
| 5418 | libs that the dynamic linker won't relocate. */ | |
| 5419 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5420 | return TRUE; | |
| 5421 | ||
| 0c8d6e5c | 5422 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5423 | |
| 65f38f15 | 5424 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5425 | if (htab == NULL) |
| 5426 | return FALSE; | |
| 5427 | ||
| 3a71aa26 AM |
5428 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5429 | FALSE, FALSE, TRUE); | |
| 5430 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5431 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5432 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5433 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5434 | sreloc = NULL; |
| b9399fcf | 5435 | is_opd = ppc64_elf_section_data (sec)->sec_type == sec_opd; |
| 5bd4f169 AM |
5436 | rel_end = relocs + sec->reloc_count; |
| 5437 | for (rel = relocs; rel < rel_end; rel++) | |
| 5438 | { | |
| 5439 | unsigned long r_symndx; | |
| 5440 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5441 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5442 | int tls_type; |
| 7c8fe5c4 | 5443 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5444 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5445 | |
| 5446 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5447 | if (r_symndx < symtab_hdr->sh_info) | |
| 5448 | h = NULL; | |
| 5449 | else | |
| 973a3492 L |
5450 | { |
| 5451 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5452 | h = elf_follow_link (h); |
| 1c865ab2 AM |
5453 | |
| 5454 | if (h == htab->elf.hgot) | |
| 5455 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5456 | } |
| 5bd4f169 | 5457 | |
| 727fc41e | 5458 | tls_type = 0; |
| e054468f | 5459 | ifunc = NULL; |
| 25f23106 AM |
5460 | if (h != NULL) |
| 5461 | { | |
| 5462 | if (h->type == STT_GNU_IFUNC) | |
| 5463 | { | |
| 5464 | h->needs_plt = 1; | |
| 5465 | ifunc = &h->plt.plist; | |
| 5466 | } | |
| 5467 | } | |
| 5468 | else | |
| 5469 | { | |
| 5470 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5471 | abfd, r_symndx); | |
| 5472 | if (isym == NULL) | |
| 5473 | return FALSE; | |
| 5474 | ||
| 5475 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5476 | { | |
| 5477 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5478 | rel->r_addend, PLT_IFUNC); | |
| 5479 | if (ifunc == NULL) | |
| 5480 | return FALSE; | |
| 5481 | } | |
| 5482 | } | |
| 727fc41e | 5483 | |
| cbf95972 | 5484 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5485 | switch (r_type) |
| 5bd4f169 | 5486 | { |
| 727fc41e AM |
5487 | case R_PPC64_TLSGD: |
| 5488 | case R_PPC64_TLSLD: | |
| 5489 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5490 | its parameter symbol. */ | |
| 5491 | break; | |
| 5492 | ||
| 411e1bfb AM |
5493 | case R_PPC64_GOT_TLSLD16: |
| 5494 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5495 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5496 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5497 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5498 | goto dogottls; |
| 5499 | ||
| 5500 | case R_PPC64_GOT_TLSGD16: | |
| 5501 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5502 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5503 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5504 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5505 | goto dogottls; |
| 5506 | ||
| 5507 | case R_PPC64_GOT_TPREL16_DS: | |
| 5508 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5509 | case R_PPC64_GOT_TPREL16_HI: | |
| 5510 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5511 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5512 | info->flags |= DF_STATIC_TLS; |
| 5513 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5514 | goto dogottls; | |
| 5515 | ||
| 5516 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5517 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5518 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5519 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5520 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5521 | dogottls: | |
| 5522 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5523 | /* Fall through */ |
| 411e1bfb | 5524 | |
| 5bd4f169 | 5525 | case R_PPC64_GOT16: |
| 5bd4f169 | 5526 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5527 | case R_PPC64_GOT16_HA: |
| 5528 | case R_PPC64_GOT16_HI: | |
| 5529 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5530 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5531 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5532 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5533 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5534 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5535 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5536 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5537 | || r_type == R_PPC64_GOT16 | |
| 5538 | || r_type == R_PPC64_GOT16_DS) | |
| 5539 | { | |
| 5540 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5541 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5542 | } |
| 5543 | ||
| e717da7e AM |
5544 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5545 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5546 | return FALSE; |
| 5bd4f169 AM |
5547 | |
| 5548 | if (h != NULL) | |
| 5549 | { | |
| 411e1bfb AM |
5550 | struct ppc_link_hash_entry *eh; |
| 5551 | struct got_entry *ent; | |
| 65f38f15 | 5552 | |
| 411e1bfb AM |
5553 | eh = (struct ppc_link_hash_entry *) h; |
| 5554 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5555 | if (ent->addend == rel->r_addend | |
| e717da7e | 5556 | && ent->owner == abfd |
| 411e1bfb AM |
5557 | && ent->tls_type == tls_type) |
| 5558 | break; | |
| 5559 | if (ent == NULL) | |
| 5bd4f169 | 5560 | { |
| 411e1bfb | 5561 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5562 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5563 | if (ent == NULL) |
| b34976b6 | 5564 | return FALSE; |
| 411e1bfb AM |
5565 | ent->next = eh->elf.got.glist; |
| 5566 | ent->addend = rel->r_addend; | |
| e717da7e | 5567 | ent->owner = abfd; |
| 411e1bfb | 5568 | ent->tls_type = tls_type; |
| 927be08e | 5569 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5570 | ent->got.refcount = 0; |
| 5571 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5572 | } |
| 411e1bfb | 5573 | ent->got.refcount += 1; |
| e7b938ca | 5574 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5575 | } |
| 411e1bfb AM |
5576 | else |
| 5577 | /* This is a global offset table entry for a local symbol. */ | |
| 5578 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5579 | rel->r_addend, tls_type)) | |
| 5580 | return FALSE; | |
| a345bc8d AM |
5581 | |
| 5582 | /* We may also need a plt entry if the symbol turns out to be | |
| 5583 | an ifunc. */ | |
| 0e1862bb | 5584 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5585 | { |
| 5586 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5587 | return FALSE; | |
| 5588 | } | |
| 5bd4f169 AM |
5589 | break; |
| 5590 | ||
| 5bd4f169 | 5591 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5592 | case R_PPC64_PLT16_HI: |
| 5593 | case R_PPC64_PLT16_LO: | |
| 5594 | case R_PPC64_PLT32: | |
| 5595 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5596 | /* This symbol requires a procedure linkage table entry. */ |
| 5597 | plt_list = ifunc; | |
| 5598 | if (h != NULL) | |
| e054468f | 5599 | { |
| e054468f AM |
5600 | h->needs_plt = 1; |
| 5601 | if (h->root.root.string[0] == '.' | |
| 5602 | && h->root.root.string[1] != '\0') | |
| 5603 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5604 | plt_list = &h->plt.plist; |
| 5605 | } | |
| 5606 | if (plt_list == NULL) | |
| 5607 | { | |
| 5608 | /* It does not make sense to have a procedure linkage | |
| 5609 | table entry for a non-ifunc local symbol. */ | |
| 5610 | info->callbacks->einfo | |
| 695344c0 | 5611 | /* xgettext:c-format */ |
| 174d0a74 | 5612 | (_("%H: %s reloc against local symbol\n"), |
| cbf95972 AM |
5613 | abfd, sec, rel->r_offset, |
| 5614 | ppc64_elf_howto_table[r_type]->name); | |
| 5615 | bfd_set_error (bfd_error_bad_value); | |
| 5616 | return FALSE; | |
| e054468f | 5617 | } |
| cbf95972 AM |
5618 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5619 | return FALSE; | |
| 5bd4f169 AM |
5620 | break; |
| 5621 | ||
| 5622 | /* The following relocations don't need to propagate the | |
| 5623 | relocation if linking a shared object since they are | |
| 5624 | section relative. */ | |
| 5625 | case R_PPC64_SECTOFF: | |
| 5626 | case R_PPC64_SECTOFF_LO: | |
| 5627 | case R_PPC64_SECTOFF_HI: | |
| 5628 | case R_PPC64_SECTOFF_HA: | |
| 5629 | case R_PPC64_SECTOFF_DS: | |
| 5630 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5631 | case R_PPC64_DTPREL16: |
| 5632 | case R_PPC64_DTPREL16_LO: | |
| 5633 | case R_PPC64_DTPREL16_HI: | |
| 5634 | case R_PPC64_DTPREL16_HA: | |
| 5635 | case R_PPC64_DTPREL16_DS: | |
| 5636 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5637 | case R_PPC64_DTPREL16_HIGH: |
| 5638 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5639 | case R_PPC64_DTPREL16_HIGHER: |
| 5640 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5641 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5642 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5643 | break; |
| 5644 | ||
| ad8e1ba5 | 5645 | /* Nor do these. */ |
| 25f23106 AM |
5646 | case R_PPC64_REL16: |
| 5647 | case R_PPC64_REL16_LO: | |
| 5648 | case R_PPC64_REL16_HI: | |
| 5649 | case R_PPC64_REL16_HA: | |
| a680de9a | 5650 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5651 | break; |
| 5652 | ||
| 45965137 AM |
5653 | /* Not supported as a dynamic relocation. */ |
| 5654 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5655 | if (bfd_link_pic (info)) |
| 45965137 AM |
5656 | { |
| 5657 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5658 | ppc_howto_init (); | |
| 695344c0 | 5659 | /* xgettext:c-format */ |
| 174d0a74 | 5660 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| 45965137 AM |
5661 | "in shared libraries and PIEs.\n"), |
| 5662 | abfd, sec, rel->r_offset, | |
| 5663 | ppc64_elf_howto_table[r_type]->name); | |
| 5664 | bfd_set_error (bfd_error_bad_value); | |
| 5665 | return FALSE; | |
| 5666 | } | |
| 5667 | break; | |
| 5668 | ||
| ad8e1ba5 | 5669 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5670 | case R_PPC64_TOC16_DS: |
| 5671 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5672 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5673 | /* Fall through. */ |
| ad8e1ba5 AM |
5674 | case R_PPC64_TOC16_LO: |
| 5675 | case R_PPC64_TOC16_HI: | |
| 5676 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5677 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5678 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5679 | break; |
| 5680 | ||
| 006589cf AM |
5681 | /* Marker reloc. */ |
| 5682 | case R_PPC64_ENTRY: | |
| 5683 | break; | |
| 5684 | ||
| 5bd4f169 AM |
5685 | /* This relocation describes the C++ object vtable hierarchy. |
| 5686 | Reconstruct it for later use during GC. */ | |
| 5687 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5688 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5689 | return FALSE; |
| 5bd4f169 AM |
5690 | break; |
| 5691 | ||
| 5692 | /* This relocation describes which C++ vtable entries are actually | |
| 5693 | used. Record for later use during GC. */ | |
| 5694 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5695 | BFD_ASSERT (h != NULL); |
| 5696 | if (h != NULL | |
| 5697 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5698 | return FALSE; |
| 5bd4f169 AM |
5699 | break; |
| 5700 | ||
| 721956f4 AM |
5701 | case R_PPC64_REL14: |
| 5702 | case R_PPC64_REL14_BRTAKEN: | |
| 5703 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5704 | { |
| 5705 | asection *dest = NULL; | |
| 5706 | ||
| 5707 | /* Heuristic: If jumping outside our section, chances are | |
| 5708 | we are going to need a stub. */ | |
| 5709 | if (h != NULL) | |
| 5710 | { | |
| 5711 | /* If the sym is weak it may be overridden later, so | |
| 5712 | don't assume we know where a weak sym lives. */ | |
| 5713 | if (h->root.type == bfd_link_hash_defined) | |
| 5714 | dest = h->root.u.def.section; | |
| 5715 | } | |
| 5716 | else | |
| 87d72d41 AM |
5717 | { |
| 5718 | Elf_Internal_Sym *isym; | |
| 5719 | ||
| 5720 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5721 | abfd, r_symndx); | |
| 5722 | if (isym == NULL) | |
| 5723 | return FALSE; | |
| 5724 | ||
| 5725 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5726 | } | |
| 5727 | ||
| 220c76dd | 5728 | if (dest != sec) |
| 7c8fe5c4 | 5729 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5730 | } |
| 721956f4 AM |
5731 | /* Fall through. */ |
| 5732 | ||
| 5d1634d7 | 5733 | case R_PPC64_REL24: |
| cbf95972 AM |
5734 | plt_list = ifunc; |
| 5735 | if (h != NULL) | |
| 5d1634d7 | 5736 | { |
| e054468f AM |
5737 | h->needs_plt = 1; |
| 5738 | if (h->root.root.string[0] == '.' | |
| 5739 | && h->root.root.string[1] != '\0') | |
| 5740 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5741 | |
| 3a71aa26 | 5742 | if (h == tga || h == dottga) |
| cbf95972 AM |
5743 | { |
| 5744 | sec->has_tls_reloc = 1; | |
| 5745 | if (rel != relocs | |
| 5746 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5747 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5748 | /* We have a new-style __tls_get_addr call with | |
| 5749 | a marker reloc. */ | |
| 5750 | ; | |
| 5751 | else | |
| 5752 | /* Mark this section as having an old-style call. */ | |
| 5753 | sec->has_tls_get_addr_call = 1; | |
| 5754 | } | |
| 5755 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5756 | } |
| cbf95972 AM |
5757 | |
| 5758 | /* We may need a .plt entry if the function this reloc | |
| 5759 | refers to is in a shared lib. */ | |
| 5760 | if (plt_list | |
| 5761 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5762 | return FALSE; | |
| 411e1bfb AM |
5763 | break; |
| 5764 | ||
| cbf95972 AM |
5765 | case R_PPC64_ADDR14: |
| 5766 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5767 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5768 | case R_PPC64_ADDR24: | |
| 5769 | goto dodyn; | |
| 5770 | ||
| 411e1bfb AM |
5771 | case R_PPC64_TPREL64: |
| 5772 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5773 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5774 | info->flags |= DF_STATIC_TLS; |
| 5775 | goto dotlstoc; | |
| 5776 | ||
| 5777 | case R_PPC64_DTPMOD64: | |
| 5778 | if (rel + 1 < rel_end | |
| 5779 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5780 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5781 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5782 | else |
| 951fd09b | 5783 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5784 | goto dotlstoc; |
| 5785 | ||
| 5786 | case R_PPC64_DTPREL64: | |
| 5787 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5788 | if (rel != relocs | |
| 5789 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5790 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5791 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5792 | Don't mark with TLS_DTPREL. */ | |
| 5793 | goto dodyn; | |
| 5794 | ||
| 5795 | dotlstoc: | |
| 5796 | sec->has_tls_reloc = 1; | |
| 5797 | if (h != NULL) | |
| 5798 | { | |
| 5799 | struct ppc_link_hash_entry *eh; | |
| 5800 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5801 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5802 | } |
| 5803 | else | |
| 5804 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5805 | rel->r_addend, tls_type)) | |
| 5806 | return FALSE; | |
| 5807 | ||
| 7c8fe5c4 AM |
5808 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5809 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5810 | { |
| 3a71aa26 AM |
5811 | bfd_size_type amt; |
| 5812 | ||
| e7b938ca | 5813 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5814 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5815 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5816 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5817 | return FALSE; | |
| 5818 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5819 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5820 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5821 | return FALSE; |
| 7c8fe5c4 AM |
5822 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5823 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5824 | } |
| 5825 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5826 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5827 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5828 | |
| 5829 | /* Mark the second slot of a GD or LD entry. | |
| 5830 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5831 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5832 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5833 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5834 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5835 | goto dodyn; |
| 5836 | ||
| 5837 | case R_PPC64_TPREL16: | |
| 5838 | case R_PPC64_TPREL16_LO: | |
| 5839 | case R_PPC64_TPREL16_HI: | |
| 5840 | case R_PPC64_TPREL16_HA: | |
| 5841 | case R_PPC64_TPREL16_DS: | |
| 5842 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5843 | case R_PPC64_TPREL16_HIGH: |
| 5844 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5845 | case R_PPC64_TPREL16_HIGHER: |
| 5846 | case R_PPC64_TPREL16_HIGHERA: | |
| 5847 | case R_PPC64_TPREL16_HIGHEST: | |
| 5848 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5849 | if (bfd_link_dll (info)) |
| 5850 | info->flags |= DF_STATIC_TLS; | |
| 5851 | goto dodyn; | |
| 5d1634d7 | 5852 | |
| e86ce104 | 5853 | case R_PPC64_ADDR64: |
| b9399fcf | 5854 | if (is_opd |
| 1e2f5b6e | 5855 | && rel + 1 < rel_end |
| 4ce794b7 | 5856 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5857 | { |
| 8387904d | 5858 | if (h != NULL) |
| 8c5b4e52 | 5859 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 1e2f5b6e | 5860 | } |
| e86ce104 AM |
5861 | /* Fall through. */ |
| 5862 | ||
| 65f38f15 AM |
5863 | case R_PPC64_ADDR16: |
| 5864 | case R_PPC64_ADDR16_DS: | |
| 5865 | case R_PPC64_ADDR16_HA: | |
| 5866 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5867 | case R_PPC64_ADDR16_HIGH: |
| 5868 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5869 | case R_PPC64_ADDR16_HIGHER: |
| 5870 | case R_PPC64_ADDR16_HIGHERA: | |
| 5871 | case R_PPC64_ADDR16_HIGHEST: | |
| 5872 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5873 | case R_PPC64_ADDR16_LO: | |
| 5874 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5875 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5876 | && rel->r_addend == 0) |
| 5877 | { | |
| 5878 | /* We may need a .plt entry if this reloc refers to a | |
| 5879 | function in a shared lib. */ | |
| 5880 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5881 | return FALSE; | |
| 5882 | h->pointer_equality_needed = 1; | |
| 5883 | } | |
| 5884 | /* Fall through. */ | |
| 5885 | ||
| 5886 | case R_PPC64_REL30: | |
| 5887 | case R_PPC64_REL32: | |
| 5888 | case R_PPC64_REL64: | |
| 65f38f15 | 5889 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5890 | case R_PPC64_UADDR16: |
| 5891 | case R_PPC64_UADDR32: | |
| 5892 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5893 | case R_PPC64_TOC: |
| 0e1862bb | 5894 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5895 | /* We may need a copy reloc. */ |
| f5385ebf | 5896 | h->non_got_ref = 1; |
| 81848ca0 | 5897 | |
| 41bd81ab | 5898 | /* Don't propagate .opd relocs. */ |
| b9399fcf | 5899 | if (NO_OPD_RELOCS && is_opd) |
| e86ce104 | 5900 | break; |
| e86ce104 | 5901 | |
| 65f38f15 AM |
5902 | /* If we are creating a shared library, and this is a reloc |
| 5903 | against a global symbol, or a non PC relative reloc | |
| 5904 | against a local symbol, then we need to copy the reloc | |
| 5905 | into the shared library. However, if we are linking with | |
| 5906 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5907 | global symbol which is defined in an object we are | |
| 5908 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5909 | this point we have not seen all the input files, so it is | |
| 5910 | possible that DEF_REGULAR is not set now but will be set | |
| 5911 | later (it is never cleared). In case of a weak definition, | |
| 5912 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5913 | a shared library. We account for that possibility below by | |
| f4656909 | 5914 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5915 | table entry. A similar situation occurs when creating |
| 5916 | shared libraries and symbol visibility changes render the | |
| 5917 | symbol local. | |
| 5918 | ||
| 5919 | If on the other hand, we are creating an executable, we | |
| 5920 | may need to keep relocations for symbols satisfied by a | |
| 5921 | dynamic library if we manage to avoid copy relocs for the | |
| 5922 | symbol. */ | |
| 411e1bfb | 5923 | dodyn: |
| 0e1862bb | 5924 | if ((bfd_link_pic (info) |
| 1d483afe | 5925 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5926 | || (h != NULL |
| 198f1157 | 5927 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5928 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5929 | || !h->def_regular)))) |
| f4656909 | 5930 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5931 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5932 | && h != NULL |
| 5933 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5934 | || !h->def_regular)) |
| 0e1862bb | 5935 | || (!bfd_link_pic (info) |
| 25f23106 | 5936 | && ifunc != NULL)) |
| 5bd4f169 | 5937 | { |
| 65f38f15 AM |
5938 | /* We must copy these reloc types into the output file. |
| 5939 | Create a reloc section in dynobj and make room for | |
| 5940 | this reloc. */ | |
| 5bd4f169 AM |
5941 | if (sreloc == NULL) |
| 5942 | { | |
| 83bac4b0 NC |
5943 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5944 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5945 | |
| 5bd4f169 | 5946 | if (sreloc == NULL) |
| 83bac4b0 | 5947 | return FALSE; |
| 5bd4f169 AM |
5948 | } |
| 5949 | ||
| 65f38f15 AM |
5950 | /* If this is a global symbol, we count the number of |
| 5951 | relocations we need for this symbol. */ | |
| 5952 | if (h != NULL) | |
| 5953 | { | |
| 19e08130 AM |
5954 | struct elf_dyn_relocs *p; |
| 5955 | struct elf_dyn_relocs **head; | |
| 5956 | ||
| ec338859 | 5957 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5958 | p = *head; |
| 5959 | if (p == NULL || p->sec != sec) | |
| 5960 | { | |
| 5961 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5962 | if (p == NULL) | |
| 5963 | return FALSE; | |
| 5964 | p->next = *head; | |
| 5965 | *head = p; | |
| 5966 | p->sec = sec; | |
| 5967 | p->count = 0; | |
| 5968 | p->pc_count = 0; | |
| 5969 | } | |
| 5970 | p->count += 1; | |
| 5971 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5972 | p->pc_count += 1; | |
| 65f38f15 AM |
5973 | } |
| 5974 | else | |
| 5975 | { | |
| ec338859 AM |
5976 | /* Track dynamic relocs needed for local syms too. |
| 5977 | We really need local syms available to do this | |
| 5978 | easily. Oh well. */ | |
| 19e08130 AM |
5979 | struct ppc_dyn_relocs *p; |
| 5980 | struct ppc_dyn_relocs **head; | |
| 5981 | bfd_boolean is_ifunc; | |
| ec338859 | 5982 | asection *s; |
| 6edfbbad | 5983 | void *vpp; |
| 87d72d41 | 5984 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5985 | |
| 87d72d41 AM |
5986 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5987 | abfd, r_symndx); | |
| 5988 | if (isym == NULL) | |
| b34976b6 | 5989 | return FALSE; |
| ec338859 | 5990 | |
| 87d72d41 AM |
5991 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5992 | if (s == NULL) | |
| 5993 | s = sec; | |
| 5994 | ||
| 6edfbbad | 5995 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5996 | head = (struct ppc_dyn_relocs **) vpp; |
| 5997 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5998 | p = *head; | |
| 5999 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 6000 | p = p->next; | |
| 6001 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 6002 | { | |
| 6003 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6004 | if (p == NULL) | |
| 6005 | return FALSE; | |
| 6006 | p->next = *head; | |
| 6007 | *head = p; | |
| 6008 | p->sec = sec; | |
| 6009 | p->ifunc = is_ifunc; | |
| 6010 | p->count = 0; | |
| 6011 | } | |
| 6012 | p->count += 1; | |
| ec338859 | 6013 | } |
| 65f38f15 | 6014 | } |
| 5bd4f169 | 6015 | break; |
| 65f38f15 AM |
6016 | |
| 6017 | default: | |
| 96e0dda4 | 6018 | break; |
| 5bd4f169 AM |
6019 | } |
| 6020 | } | |
| 6021 | ||
| b34976b6 | 6022 | return TRUE; |
| 5bd4f169 AM |
6023 | } |
| 6024 | ||
| ee67d69a AM |
6025 | /* Merge backend specific data from an object file to the output |
| 6026 | object file when linking. */ | |
| 6027 | ||
| 6028 | static bfd_boolean | |
| 50e03d47 | 6029 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6030 | { |
| 50e03d47 | 6031 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6032 | unsigned long iflags, oflags; |
| 6033 | ||
| 6034 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6035 | return TRUE; | |
| 6036 | ||
| 6037 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6038 | return TRUE; | |
| 6039 | ||
| 50e03d47 | 6040 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6041 | return FALSE; |
| 6042 | ||
| 6043 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6044 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6045 | ||
| f6c7c3e8 | 6046 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6047 | { |
| 4eca0228 | 6048 | _bfd_error_handler |
| 695344c0 | 6049 | /* xgettext:c-format */ |
| ee67d69a AM |
6050 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); |
| 6051 | bfd_set_error (bfd_error_bad_value); | |
| 6052 | return FALSE; | |
| 6053 | } | |
| f6c7c3e8 | 6054 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6055 | { |
| 4eca0228 | 6056 | _bfd_error_handler |
| 695344c0 | 6057 | /* xgettext:c-format */ |
| ee67d69a AM |
6058 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), |
| 6059 | ibfd, iflags, oflags); | |
| 6060 | bfd_set_error (bfd_error_bad_value); | |
| 6061 | return FALSE; | |
| 6062 | } | |
| 6063 | ||
| 50e03d47 | 6064 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6065 | |
| ee67d69a | 6066 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6067 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6068 | |
| 6069 | return TRUE; | |
| 6070 | } | |
| 6071 | ||
| 6072 | static bfd_boolean | |
| 6073 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6074 | { | |
| 6075 | /* Print normal ELF private data. */ | |
| 6076 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6077 | ||
| 6078 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6079 | { | |
| 6080 | FILE *file = ptr; | |
| 6081 | ||
| ee67d69a AM |
6082 | fprintf (file, _("private flags = 0x%lx:"), |
| 6083 | elf_elfheader (abfd)->e_flags); | |
| 6084 | ||
| 6085 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6086 | fprintf (file, _(" [abiv%ld]"), | |
| 6087 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6088 | fputc ('\n', file); | |
| 6089 | } | |
| 6090 | ||
| 6091 | return TRUE; | |
| 6092 | } | |
| 6093 | ||
| 8387904d | 6094 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6095 | of the code entry point, and its section, which must be in the same |
| 6096 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6097 | |
| 6098 | static bfd_vma | |
| 6099 | opd_entry_value (asection *opd_sec, | |
| 6100 | bfd_vma offset, | |
| 6101 | asection **code_sec, | |
| aef36ac1 AM |
6102 | bfd_vma *code_off, |
| 6103 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6104 | { |
| 6105 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6106 | Elf_Internal_Rela *relocs; |
| 8387904d | 6107 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6108 | bfd_vma val; |
| 8387904d | 6109 | |
| 9f296da3 AM |
6110 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6111 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6112 | if (opd_sec->reloc_count == 0) |
| 6113 | { | |
| 729eabd5 | 6114 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6115 | |
| 729eabd5 AM |
6116 | if (contents == NULL) |
| 6117 | { | |
| 6118 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6119 | return (bfd_vma) -1; | |
| 6120 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6121 | } | |
| ee1e4ede | 6122 | |
| dbb3fbbb | 6123 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6124 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6125 | return (bfd_vma) -1; |
| 6126 | ||
| 729eabd5 | 6127 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6128 | if (code_sec != NULL) |
| 6129 | { | |
| 6130 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6131 | |
| aef36ac1 | 6132 | if (in_code_sec) |
| 4b85d634 | 6133 | { |
| aef36ac1 AM |
6134 | sec = *code_sec; |
| 6135 | if (sec->vma <= val | |
| 6136 | && val < sec->vma + sec->size) | |
| 6137 | likely = sec; | |
| 6138 | else | |
| 6139 | val = -1; | |
| 6140 | } | |
| 6141 | else | |
| 6142 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6143 | if (sec->vma <= val | |
| 6144 | && (sec->flags & SEC_LOAD) != 0 | |
| 6145 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6146 | likely = sec; | |
| 6147 | if (likely != NULL) | |
| 6148 | { | |
| 6149 | *code_sec = likely; | |
| 6150 | if (code_off != NULL) | |
| 6151 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6152 | } |
| 6153 | } | |
| aef36ac1 | 6154 | return val; |
| 4b85d634 AM |
6155 | } |
| 6156 | ||
| 0c8d6e5c | 6157 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6158 | |
| 729eabd5 | 6159 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6160 | if (relocs == NULL) |
| 6161 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6162 | /* PR 17512: file: df8e1fd6. */ |
| 6163 | if (relocs == NULL) | |
| 6164 | return (bfd_vma) -1; | |
| 645ea6a9 | 6165 | |
| 8387904d | 6166 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6167 | lo = relocs; |
| 8387904d | 6168 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6169 | val = (bfd_vma) -1; |
| 8387904d AM |
6170 | while (lo < hi) |
| 6171 | { | |
| 6172 | look = lo + (hi - lo) / 2; | |
| 6173 | if (look->r_offset < offset) | |
| 6174 | lo = look + 1; | |
| 6175 | else if (look->r_offset > offset) | |
| 6176 | hi = look; | |
| 6177 | else | |
| 6178 | { | |
| 0ffa91dd NC |
6179 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6180 | ||
| 8387904d AM |
6181 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6182 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6183 | { | |
| 6184 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6185 | asection *sec = NULL; |
| 8387904d | 6186 | |
| b53dfeb2 AM |
6187 | if (symndx >= symtab_hdr->sh_info |
| 6188 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6189 | { |
| 6190 | struct elf_link_hash_entry **sym_hashes; | |
| 6191 | struct elf_link_hash_entry *rh; | |
| 6192 | ||
| 6193 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6194 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6195 | if (rh != NULL) |
| 6196 | { | |
| 6197 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6198 | if (rh->root.type != bfd_link_hash_defined |
| 6199 | && rh->root.type != bfd_link_hash_defweak) | |
| 6200 | break; | |
| 6201 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6202 | { |
| bb854a36 AM |
6203 | val = rh->root.u.def.value; |
| 6204 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6205 | } |
| 6206 | } | |
| 6207 | } | |
| 6208 | ||
| 6209 | if (sec == NULL) | |
| 6210 | { | |
| 6211 | Elf_Internal_Sym *sym; | |
| 6212 | ||
| 6213 | if (symndx < symtab_hdr->sh_info) | |
| 6214 | { | |
| 6215 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6216 | if (sym == NULL) | |
| 6217 | { | |
| 6218 | size_t symcnt = symtab_hdr->sh_info; | |
| 6219 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6220 | symcnt, 0, | |
| 6221 | NULL, NULL, NULL); | |
| 6222 | if (sym == NULL) | |
| 6223 | break; | |
| 6224 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6225 | } | |
| 6226 | sym += symndx; | |
| 128205bb AM |
6227 | } |
| 6228 | else | |
| 6229 | { | |
| b53dfeb2 AM |
6230 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6231 | 1, symndx, | |
| 6232 | NULL, NULL, NULL); | |
| 128205bb AM |
6233 | if (sym == NULL) |
| 6234 | break; | |
| 128205bb | 6235 | } |
| b53dfeb2 AM |
6236 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6237 | if (sec == NULL) | |
| 6238 | break; | |
| 6239 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6240 | val = sym->st_value; | |
| 8387904d | 6241 | } |
| b53dfeb2 | 6242 | |
| 8387904d AM |
6243 | val += look->r_addend; |
| 6244 | if (code_off != NULL) | |
| 6245 | *code_off = val; | |
| 6246 | if (code_sec != NULL) | |
| aef36ac1 AM |
6247 | { |
| 6248 | if (in_code_sec && *code_sec != sec) | |
| 6249 | return -1; | |
| 6250 | else | |
| 6251 | *code_sec = sec; | |
| 6252 | } | |
| b53dfeb2 | 6253 | if (sec->output_section != NULL) |
| 8387904d | 6254 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6255 | } |
| 6256 | break; | |
| 6257 | } | |
| 6258 | } | |
| 645ea6a9 | 6259 | |
| 645ea6a9 | 6260 | return val; |
| 8387904d AM |
6261 | } |
| 6262 | ||
| aef36ac1 AM |
6263 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6264 | function size and set *CODE_OFF to the function's entry point, | |
| 6265 | otherwise return zero. */ | |
| 9f296da3 | 6266 | |
| aef36ac1 AM |
6267 | static bfd_size_type |
| 6268 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6269 | bfd_vma *code_off) | |
| 9f296da3 | 6270 | { |
| aef36ac1 AM |
6271 | bfd_size_type size; |
| 6272 | ||
| 6273 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6274 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6275 | return 0; | |
| 6276 | ||
| 6277 | size = 0; | |
| 6278 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6279 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6280 | ||
| 6281 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6282 | { |
| b07bca4e AM |
6283 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6284 | bfd_vma symval = sym->value; | |
| 6285 | ||
| 6286 | if (opd != NULL | |
| 6287 | && opd->adjust != NULL | |
| 6288 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6289 | { | |
| 6290 | /* opd_entry_value will use cached relocs that have been | |
| 6291 | adjusted, but with raw symbols. That means both local | |
| 6292 | and global symbols need adjusting. */ | |
| 6293 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6294 | if (adjust == -1) | |
| 6295 | return 0; | |
| 6296 | symval += adjust; | |
| 6297 | } | |
| 6298 | ||
| 6299 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6300 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6301 | return 0; | |
| 6302 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6303 | symbol. This size has nothing to do with the code size of the | |
| 6304 | function, which is what we're supposed to return, but the | |
| 6305 | code size isn't available without looking up the dot-sym. | |
| 6306 | However, doing that would be a waste of time particularly | |
| 6307 | since elf_find_function will look at the dot-sym anyway. | |
| 6308 | Now, elf_find_function will keep the largest size of any | |
| 6309 | function sym found at the code address of interest, so return | |
| 6310 | 1 here to avoid it incorrectly caching a larger function size | |
| 6311 | for a small function. This does mean we return the wrong | |
| 6312 | size for a new-ABI function of size 24, but all that does is | |
| 6313 | disable caching for such functions. */ | |
| 6314 | if (size == 24) | |
| 6315 | size = 1; | |
| 9f296da3 | 6316 | } |
| aef36ac1 AM |
6317 | else |
| 6318 | { | |
| 6319 | if (sym->section != sec) | |
| 6320 | return 0; | |
| 6321 | *code_off = sym->value; | |
| 6322 | } | |
| 6323 | if (size == 0) | |
| 6324 | size = 1; | |
| 6325 | return size; | |
| 9f296da3 AM |
6326 | } |
| 6327 | ||
| f378ab09 AM |
6328 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6329 | object with st_other localentry bits of zero, ie. its local entry | |
| 6330 | point coincides with its global entry point. */ | |
| 6331 | ||
| 6332 | static bfd_boolean | |
| 6333 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6334 | { | |
| 6335 | return (h != NULL | |
| 6336 | && h->type == STT_FUNC | |
| 6337 | && h->root.type == bfd_link_hash_defined | |
| 6338 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6339 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6340 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6341 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6342 | } | |
| 6343 | ||
| 854b41e7 AM |
6344 | /* Return true if symbol is defined in a regular object file. */ |
| 6345 | ||
| 6346 | static bfd_boolean | |
| 6347 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6348 | { | |
| 6349 | return ((h->root.type == bfd_link_hash_defined | |
| 6350 | || h->root.type == bfd_link_hash_defweak) | |
| 6351 | && h->root.u.def.section != NULL | |
| 6352 | && h->root.u.def.section->output_section != NULL); | |
| 6353 | } | |
| 6354 | ||
| b31867b6 AM |
6355 | /* If FDH is a function descriptor symbol, return the associated code |
| 6356 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6357 | ||
| 6358 | static struct ppc_link_hash_entry * | |
| 6359 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6360 | { | |
| 6361 | if (fdh->is_func_descriptor) | |
| 6362 | { | |
| 6363 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6364 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6365 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6366 | return fh; | |
| 6367 | } | |
| 6368 | return NULL; | |
| 6369 | } | |
| 6370 | ||
| 6371 | /* If FH is a function code entry symbol, return the associated | |
| 6372 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6373 | ||
| 6374 | static struct ppc_link_hash_entry * | |
| 6375 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6376 | { | |
| 6377 | if (fh->oh != NULL | |
| 6378 | && fh->oh->is_func_descriptor) | |
| 6379 | { | |
| 6380 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6381 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6382 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6383 | return fdh; | |
| 6384 | } | |
| 6385 | return NULL; | |
| 6386 | } | |
| 6387 | ||
| 8c5b4e52 AM |
6388 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6389 | ||
| 6390 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6391 | ||
| 6392 | static bfd_boolean | |
| 6393 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6394 | { | |
| 6395 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6396 | ||
| 6397 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6398 | { | |
| 6399 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6400 | htab->need_func_desc_adj = 0; | |
| 6401 | } | |
| 6402 | return bfd_elf_gc_sections (abfd, info); | |
| 6403 | } | |
| 6404 | ||
| 74f0fb50 AM |
6405 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6406 | ||
| 6407 | static void | |
| 6408 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6409 | { | |
| 6410 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6411 | struct bfd_sym_chain *sym; | |
| 6412 | ||
| 4dfe6ac6 NC |
6413 | if (htab == NULL) |
| 6414 | return; | |
| 6415 | ||
| 74f0fb50 AM |
6416 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6417 | { | |
| b31867b6 | 6418 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6419 | asection *sec; |
| 6420 | ||
| 6421 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6422 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6423 | if (eh == NULL) |
| 6424 | continue; | |
| 6425 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6426 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6427 | continue; | |
| 6428 | ||
| b31867b6 AM |
6429 | fh = defined_code_entry (eh); |
| 6430 | if (fh != NULL) | |
| 74f0fb50 | 6431 | { |
| b31867b6 | 6432 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6433 | sec->flags |= SEC_KEEP; |
| 6434 | } | |
| 6435 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6436 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6437 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6438 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6439 | sec->flags |= SEC_KEEP; |
| 6440 | ||
| 6441 | sec = eh->elf.root.u.def.section; | |
| 6442 | sec->flags |= SEC_KEEP; | |
| 6443 | } | |
| 6444 | } | |
| 6445 | ||
| 64d03ab5 AM |
6446 | /* Mark sections containing dynamically referenced symbols. When |
| 6447 | building shared libraries, we must assume that any visible symbol is | |
| 6448 | referenced. */ | |
| 6449 | ||
| 6450 | static bfd_boolean | |
| 6451 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6452 | { | |
| 6453 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6454 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6455 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6456 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6457 | |
| 64d03ab5 | 6458 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6459 | fdh = defined_func_desc (eh); |
| 6460 | if (fdh != NULL) | |
| 6461 | eh = fdh; | |
| 64d03ab5 AM |
6462 | |
| 6463 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6464 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 87e79a65 | 6465 | && ((eh->elf.ref_dynamic && !eh->elf.forced_local) |
| 1c9177d9 | 6466 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6467 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6468 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6469 | && (!bfd_link_executable (info) |
| e278ae05 | 6470 | || info->gc_keep_exported |
| b407645f AM |
6471 | || info->export_dynamic |
| 6472 | || (eh->elf.dynamic | |
| 6473 | && d != NULL | |
| 6474 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6475 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6476 | || !bfd_hide_sym_by_version (info->version_info, |
| 6477 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6478 | { |
| 6479 | asection *code_sec; | |
| b31867b6 | 6480 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6481 | |
| 6482 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6483 | ||
| 6484 | /* Function descriptor syms cause the associated | |
| 6485 | function code sym section to be marked. */ | |
| b31867b6 AM |
6486 | fh = defined_code_entry (eh); |
| 6487 | if (fh != NULL) | |
| 6488 | { | |
| 6489 | code_sec = fh->elf.root.u.def.section; | |
| 6490 | code_sec->flags |= SEC_KEEP; | |
| 6491 | } | |
| 64d03ab5 AM |
6492 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6493 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6494 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6495 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6496 | code_sec->flags |= SEC_KEEP; |
| 6497 | } | |
| 6498 | ||
| 6499 | return TRUE; | |
| 6500 | } | |
| 6501 | ||
| 5bd4f169 AM |
6502 | /* Return the section that should be marked against GC for a given |
| 6503 | relocation. */ | |
| 6504 | ||
| 6505 | static asection * | |
| 4ce794b7 | 6506 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6507 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6508 | Elf_Internal_Rela *rel, |
| 6509 | struct elf_link_hash_entry *h, | |
| 6510 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6511 | { |
| ccfa59ea AM |
6512 | asection *rsec; |
| 6513 | ||
| ccfa59ea AM |
6514 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6515 | function sections, as all functions are referenced in .opd. */ | |
| 6516 | rsec = NULL; | |
| 6517 | if (get_opd_info (sec) != NULL) | |
| 6518 | return rsec; | |
| 1e2f5b6e | 6519 | |
| 5bd4f169 AM |
6520 | if (h != NULL) |
| 6521 | { | |
| 04c9666a | 6522 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6523 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6524 | |
| 4ce794b7 | 6525 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6526 | switch (r_type) |
| 5bd4f169 AM |
6527 | { |
| 6528 | case R_PPC64_GNU_VTINHERIT: | |
| 6529 | case R_PPC64_GNU_VTENTRY: | |
| 6530 | break; | |
| 6531 | ||
| 6532 | default: | |
| 6533 | switch (h->root.type) | |
| 6534 | { | |
| 6535 | case bfd_link_hash_defined: | |
| 6536 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6537 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6538 | fdh = defined_func_desc (eh); |
| 6539 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6540 | { |
| 6541 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6542 | a call reloc. Mark the function descriptor too | |
| 6543 | against garbage collection. */ | |
| 6544 | fdh->elf.mark = 1; | |
| 60d67dc8 AM |
6545 | if (fdh->elf.is_weakalias) |
| 6546 | weakdef (&fdh->elf)->mark = 1; | |
| 8c5b4e52 AM |
6547 | eh = fdh; |
| 6548 | } | |
| 1e2f5b6e AM |
6549 | |
| 6550 | /* Function descriptor syms cause the associated | |
| 6551 | function code sym section to be marked. */ | |
| b31867b6 AM |
6552 | fh = defined_code_entry (eh); |
| 6553 | if (fh != NULL) | |
| ccfa59ea AM |
6554 | { |
| 6555 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6556 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6557 | |
| b31867b6 | 6558 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6559 | } |
| 8387904d AM |
6560 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6561 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6562 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6563 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6564 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6565 | else |
| 1e2f5b6e AM |
6566 | rsec = h->root.u.def.section; |
| 6567 | break; | |
| 5bd4f169 AM |
6568 | |
| 6569 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6570 | rsec = h->root.u.c.p->section; |
| 6571 | break; | |
| 5bd4f169 AM |
6572 | |
| 6573 | default: | |
| fb34365b | 6574 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6575 | } |
| 6576 | } | |
| 6577 | } | |
| 6578 | else | |
| 6579 | { | |
| 74f0fb50 | 6580 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6581 | |
| 6582 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6583 | opd = get_opd_info (rsec); |
| 6584 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6585 | { |
| 74f0fb50 | 6586 | rsec->gc_mark = 1; |
| ccfa59ea | 6587 | |
| 51aecdc5 | 6588 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6589 | } |
| 5bd4f169 AM |
6590 | } |
| 6591 | ||
| 1e2f5b6e | 6592 | return rsec; |
| 5bd4f169 AM |
6593 | } |
| 6594 | ||
| deb0e272 AM |
6595 | /* The maximum size of .sfpr. */ |
| 6596 | #define SFPR_MAX (218*4) | |
| 6597 | ||
| 6598 | struct sfpr_def_parms | |
| 6599 | { | |
| 699733f6 AM |
6600 | const char name[12]; |
| 6601 | unsigned char lo, hi; | |
| deb0e272 AM |
6602 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6603 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6604 | }; | |
| 6605 | ||
| a4b6fadd AM |
6606 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6607 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6608 | instead. */ | |
| deb0e272 | 6609 | |
| 4dfe6ac6 | 6610 | static bfd_boolean |
| a4b6fadd AM |
6611 | sfpr_define (struct bfd_link_info *info, |
| 6612 | const struct sfpr_def_parms *parm, | |
| 6613 | asection *stub_sec) | |
| deb0e272 AM |
6614 | { |
| 6615 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6616 | unsigned int i; | |
| 6617 | size_t len = strlen (parm->name); | |
| 6618 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6619 | char sym[16]; |
| deb0e272 | 6620 | |
| 4dfe6ac6 NC |
6621 | if (htab == NULL) |
| 6622 | return FALSE; | |
| 6623 | ||
| deb0e272 AM |
6624 | memcpy (sym, parm->name, len); |
| 6625 | sym[len + 2] = 0; | |
| 6626 | ||
| 6627 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6628 | { | |
| a4b6fadd | 6629 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6630 | |
| 6631 | sym[len + 0] = i / 10 + '0'; | |
| 6632 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6633 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6634 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6635 | if (stub_sec != NULL) |
| deb0e272 | 6636 | { |
| a4b6fadd AM |
6637 | if (h != NULL |
| 6638 | && h->elf.root.type == bfd_link_hash_defined | |
| 6639 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6640 | { | |
| 6641 | struct elf_link_hash_entry *s; | |
| 6642 | char buf[32]; | |
| 6643 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6644 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6645 | if (s == NULL) | |
| 6646 | return FALSE; | |
| 6647 | if (s->root.type == bfd_link_hash_new | |
| 6648 | || (s->root.type = bfd_link_hash_defined | |
| 6649 | && s->root.u.def.section == stub_sec)) | |
| 6650 | { | |
| 6651 | s->root.type = bfd_link_hash_defined; | |
| 6652 | s->root.u.def.section = stub_sec; | |
| 6653 | s->root.u.def.value = (stub_sec->size | |
| 6654 | + h->elf.root.u.def.value); | |
| 6655 | s->ref_regular = 1; | |
| 6656 | s->def_regular = 1; | |
| 6657 | s->ref_regular_nonweak = 1; | |
| 6658 | s->forced_local = 1; | |
| 6659 | s->non_elf = 0; | |
| 6660 | s->root.linker_def = 1; | |
| 6661 | } | |
| 6662 | } | |
| 6663 | continue; | |
| 6664 | } | |
| 6665 | if (h != NULL) | |
| 6666 | { | |
| 6667 | h->save_res = 1; | |
| 6668 | if (!h->elf.def_regular) | |
| deb0e272 | 6669 | { |
| a4b6fadd AM |
6670 | h->elf.root.type = bfd_link_hash_defined; |
| 6671 | h->elf.root.u.def.section = htab->sfpr; | |
| 6672 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6673 | h->elf.type = STT_FUNC; | |
| 6674 | h->elf.def_regular = 1; | |
| b32547cd | 6675 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6676 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6677 | writing = TRUE; | |
| deb0e272 | 6678 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6679 | { |
| 6680 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6681 | if (htab->sfpr->contents == NULL) | |
| 6682 | return FALSE; | |
| 6683 | } | |
| deb0e272 AM |
6684 | } |
| 6685 | } | |
| 6686 | if (writing) | |
| 6687 | { | |
| 6688 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6689 | if (i != parm->hi) | |
| 6690 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6691 | else | |
| 6692 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6693 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6694 | } | |
| 6695 | } | |
| 6696 | ||
| 6697 | return TRUE; | |
| 6698 | } | |
| 6699 | ||
| 6700 | static bfd_byte * | |
| 6701 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6702 | { | |
| 6703 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6704 | return p + 4; | |
| 6705 | } | |
| 6706 | ||
| 6707 | static bfd_byte * | |
| 6708 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6709 | { | |
| 6710 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6711 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6712 | p = p + 4; |
| 6713 | bfd_put_32 (abfd, BLR, p); | |
| 6714 | return p + 4; | |
| 6715 | } | |
| 6716 | ||
| 6717 | static bfd_byte * | |
| 6718 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6719 | { | |
| 6720 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6721 | return p + 4; | |
| 6722 | } | |
| 6723 | ||
| 6724 | static bfd_byte * | |
| 6725 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6726 | { | |
| a078d95a | 6727 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6728 | p = p + 4; |
| 6729 | p = restgpr0 (abfd, p, r); | |
| 6730 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6731 | p = p + 4; | |
| 6732 | if (r == 29) | |
| 6733 | { | |
| 6734 | p = restgpr0 (abfd, p, 30); | |
| 6735 | p = restgpr0 (abfd, p, 31); | |
| 6736 | } | |
| 6737 | bfd_put_32 (abfd, BLR, p); | |
| 6738 | return p + 4; | |
| 6739 | } | |
| 6740 | ||
| 6741 | static bfd_byte * | |
| 6742 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6743 | { | |
| 6744 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6745 | return p + 4; | |
| 6746 | } | |
| 6747 | ||
| 6748 | static bfd_byte * | |
| 6749 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6750 | { | |
| 6751 | p = savegpr1 (abfd, p, r); | |
| 6752 | bfd_put_32 (abfd, BLR, p); | |
| 6753 | return p + 4; | |
| 6754 | } | |
| 6755 | ||
| 6756 | static bfd_byte * | |
| 6757 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6758 | { | |
| 6759 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6760 | return p + 4; | |
| 6761 | } | |
| 6762 | ||
| 6763 | static bfd_byte * | |
| 6764 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6765 | { | |
| 6766 | p = restgpr1 (abfd, p, r); | |
| 6767 | bfd_put_32 (abfd, BLR, p); | |
| 6768 | return p + 4; | |
| 6769 | } | |
| 6770 | ||
| 6771 | static bfd_byte * | |
| 6772 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6773 | { | |
| 6774 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6775 | return p + 4; | |
| 6776 | } | |
| 6777 | ||
| 6778 | static bfd_byte * | |
| 6779 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6780 | { | |
| 6781 | p = savefpr (abfd, p, r); | |
| a078d95a | 6782 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6783 | p = p + 4; |
| 6784 | bfd_put_32 (abfd, BLR, p); | |
| 6785 | return p + 4; | |
| 6786 | } | |
| 6787 | ||
| 6788 | static bfd_byte * | |
| 6789 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6790 | { | |
| 6791 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6792 | return p + 4; | |
| 6793 | } | |
| 6794 | ||
| 6795 | static bfd_byte * | |
| 6796 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6797 | { | |
| a078d95a | 6798 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6799 | p = p + 4; |
| 6800 | p = restfpr (abfd, p, r); | |
| 6801 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6802 | p = p + 4; | |
| 6803 | if (r == 29) | |
| 6804 | { | |
| 6805 | p = restfpr (abfd, p, 30); | |
| 6806 | p = restfpr (abfd, p, 31); | |
| 6807 | } | |
| 6808 | bfd_put_32 (abfd, BLR, p); | |
| 6809 | return p + 4; | |
| 6810 | } | |
| 6811 | ||
| 6812 | static bfd_byte * | |
| 6813 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6814 | { | |
| 6815 | p = savefpr (abfd, p, r); | |
| 6816 | bfd_put_32 (abfd, BLR, p); | |
| 6817 | return p + 4; | |
| 6818 | } | |
| 6819 | ||
| 6820 | static bfd_byte * | |
| 6821 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6822 | { | |
| 6823 | p = restfpr (abfd, p, r); | |
| 6824 | bfd_put_32 (abfd, BLR, p); | |
| 6825 | return p + 4; | |
| 6826 | } | |
| 6827 | ||
| 6828 | static bfd_byte * | |
| 6829 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6830 | { | |
| 6831 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6832 | p = p + 4; | |
| 6833 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6834 | return p + 4; | |
| 6835 | } | |
| 6836 | ||
| 6837 | static bfd_byte * | |
| 6838 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6839 | { | |
| 6840 | p = savevr (abfd, p, r); | |
| 6841 | bfd_put_32 (abfd, BLR, p); | |
| 6842 | return p + 4; | |
| 6843 | } | |
| 6844 | ||
| 6845 | static bfd_byte * | |
| 6846 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6847 | { | |
| 6848 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6849 | p = p + 4; | |
| 6850 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6851 | return p + 4; | |
| 6852 | } | |
| 6853 | ||
| 6854 | static bfd_byte * | |
| 6855 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6856 | { | |
| 6857 | p = restvr (abfd, p, r); | |
| 6858 | bfd_put_32 (abfd, BLR, p); | |
| 6859 | return p + 4; | |
| 6860 | } | |
| 6861 | ||
| e86ce104 AM |
6862 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6863 | information on function code symbol entries to their corresponding | |
| 6864 | function descriptor symbol entries. */ | |
| deb0e272 | 6865 | |
| b34976b6 | 6866 | static bfd_boolean |
| 4ce794b7 | 6867 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6868 | { |
| e86ce104 | 6869 | struct bfd_link_info *info; |
| 65f38f15 | 6870 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6871 | struct ppc_link_hash_entry *fh; |
| 6872 | struct ppc_link_hash_entry *fdh; | |
| 6873 | bfd_boolean force_local; | |
| 5bd4f169 | 6874 | |
| 50bc7936 AM |
6875 | fh = (struct ppc_link_hash_entry *) h; |
| 6876 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6877 | return TRUE; |
| e86ce104 | 6878 | |
| 8c5b4e52 AM |
6879 | if (!fh->is_func) |
| 6880 | return TRUE; | |
| 6881 | ||
| 6882 | if (fh->elf.root.root.string[0] != '.' | |
| 6883 | || fh->elf.root.root.string[1] == '\0') | |
| 6884 | return TRUE; | |
| 6885 | ||
| 4ce794b7 | 6886 | info = inf; |
| 65f38f15 | 6887 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6888 | if (htab == NULL) |
| 6889 | return FALSE; | |
| 5bd4f169 | 6890 | |
| 8c5b4e52 AM |
6891 | /* Find the corresponding function descriptor symbol. */ |
| 6892 | fdh = lookup_fdh (fh, htab); | |
| 6893 | ||
| c09bdfe5 AM |
6894 | /* Resolve undefined references to dot-symbols as the value |
| 6895 | in the function descriptor, if we have one in a regular object. | |
| 6896 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6897 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
6898 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 6899 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 6900 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 6901 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
6902 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 6903 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6904 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6905 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6906 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6907 | { |
| b31867b6 | 6908 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6909 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6910 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6911 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6912 | } |
| 6913 | ||
| 8c5b4e52 AM |
6914 | if (!fh->elf.dynamic) |
| 6915 | { | |
| 6916 | struct plt_entry *ent; | |
| 5bd4f169 | 6917 | |
| 8c5b4e52 AM |
6918 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 6919 | if (ent->plt.refcount > 0) | |
| 6920 | break; | |
| 6921 | if (ent == NULL) | |
| 6922 | return TRUE; | |
| 6923 | } | |
| 5bd4f169 | 6924 | |
| 8c5b4e52 | 6925 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 6926 | if (fdh == NULL |
| 0e1862bb | 6927 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6928 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6929 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6930 | { | |
| 908b32fc | 6931 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6932 | if (fdh == NULL) |
| 6933 | return FALSE; | |
| 50bc7936 | 6934 | } |
| 648cca2c | 6935 | |
| 8c5b4e52 | 6936 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
6937 | if (fdh != NULL |
| 6938 | && fdh->fake | |
| 8c5b4e52 AM |
6939 | && (fh->elf.root.type == bfd_link_hash_defined |
| 6940 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 6941 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 6942 | |
| 8c5b4e52 AM |
6943 | /* Transfer dynamic linking information to the function descriptor. */ |
| 6944 | if (fdh != NULL) | |
| 6945 | { | |
| f5385ebf AM |
6946 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6947 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6948 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6949 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
6950 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 6951 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 6952 | || fh->elf.type == STT_FUNC | |
| 6953 | || fh->elf.type == STT_GNU_IFUNC); | |
| 6954 | move_plt_plist (fh, fdh); | |
| 6955 | ||
| 6956 | if (!fdh->elf.forced_local | |
| 6957 | && fh->elf.dynindx != -1) | |
| 6958 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 6959 | return FALSE; | |
| e86ce104 AM |
6960 | } |
| 6961 | ||
| 50bc7936 AM |
6962 | /* Now that the info is on the function descriptor, clear the |
| 6963 | function code sym info. Any function code syms for which we | |
| 6964 | don't have a definition in a regular file, we force local. | |
| 6965 | This prevents a shared library from exporting syms that have | |
| 6966 | been imported from another library. Function code syms that | |
| 6967 | are really in the library we must leave global to prevent the | |
| 6968 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6969 | force_local = (!fh->elf.def_regular |
| 6970 | || fdh == NULL | |
| 6971 | || !fdh->elf.def_regular | |
| 6972 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6973 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6974 | ||
| b34976b6 | 6975 | return TRUE; |
| e86ce104 | 6976 | } |
| 40b8271b | 6977 | |
| a4b6fadd AM |
6978 | static const struct sfpr_def_parms save_res_funcs[] = |
| 6979 | { | |
| 6980 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6981 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6982 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6983 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6984 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6985 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6986 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6987 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6988 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6989 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 6990 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 6991 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 6992 | }; | |
| 6993 | ||
| e86ce104 | 6994 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
6995 | this hook to a) provide some gcc support functions, and b) transfer |
| 6996 | dynamic linking information gathered so far on function code symbol | |
| 6997 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 6998 | |
| b34976b6 | 6999 | static bfd_boolean |
| 4ce794b7 AM |
7000 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7001 | struct bfd_link_info *info) | |
| e86ce104 AM |
7002 | { |
| 7003 | struct ppc_link_hash_table *htab; | |
| 7004 | ||
| 7005 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7006 | if (htab == NULL) |
| 7007 | return FALSE; | |
| 7008 | ||
| b32547cd AM |
7009 | /* Provide any missing _save* and _rest* functions. */ |
| 7010 | if (htab->sfpr != NULL) | |
| 7011 | { | |
| 7012 | unsigned int i; | |
| 7013 | ||
| 7014 | htab->sfpr->size = 0; | |
| 7015 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7016 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7017 | return FALSE; | |
| 7018 | if (htab->sfpr->size == 0) | |
| 7019 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7020 | } | |
| 7021 | ||
| 7022 | if (bfd_link_relocatable (info)) | |
| 7023 | return TRUE; | |
| 7024 | ||
| 7025 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7026 | { |
| 7027 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7028 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7029 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7030 | if (!htab->elf.hgot->def_regular |
| 7031 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7032 | { | |
| 7033 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7034 | htab->elf.hgot->root.u.def.value = 0; | |
| 7035 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7036 | htab->elf.hgot->def_regular = 1; | |
| 7037 | htab->elf.hgot->root.linker_def = 1; | |
| 7038 | } | |
| dba6fa9b | 7039 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7040 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7041 | | STV_HIDDEN); | |
| 7042 | } | |
| c66bb0ee | 7043 | |
| 8c5b4e52 AM |
7044 | if (htab->need_func_desc_adj) |
| 7045 | { | |
| 7046 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7047 | htab->need_func_desc_adj = 0; | |
| 7048 | } | |
| 805fc799 | 7049 | |
| b34976b6 | 7050 | return TRUE; |
| e86ce104 AM |
7051 | } |
| 7052 | ||
| 98bbb1b8 | 7053 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| a345bc8d | 7054 | |
| 98bbb1b8 | 7055 | static asection * |
| a345bc8d AM |
7056 | readonly_dynrelocs (struct elf_link_hash_entry *h) |
| 7057 | { | |
| 7058 | struct ppc_link_hash_entry *eh; | |
| 7059 | struct elf_dyn_relocs *p; | |
| 7060 | ||
| 7061 | eh = (struct ppc_link_hash_entry *) h; | |
| 7062 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7063 | { | |
| 7064 | asection *s = p->sec->output_section; | |
| 7065 | ||
| 7066 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 98bbb1b8 | 7067 | return p->sec; |
| a345bc8d | 7068 | } |
| 98bbb1b8 | 7069 | return NULL; |
| a345bc8d AM |
7070 | } |
| 7071 | ||
| d311bc8b | 7072 | /* Return true if we have dynamic relocs against H or any of its weak |
| ab2477e1 AM |
7073 | aliases, that apply to read-only sections. Cannot be used after |
| 7074 | size_dynamic_sections. */ | |
| d311bc8b AM |
7075 | |
| 7076 | static bfd_boolean | |
| 7077 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7078 | { | |
| 7079 | struct ppc_link_hash_entry *eh; | |
| 7080 | ||
| 7081 | eh = (struct ppc_link_hash_entry *) h; | |
| 7082 | do | |
| 7083 | { | |
| 7084 | if (readonly_dynrelocs (&eh->elf)) | |
| 7085 | return TRUE; | |
| ab2477e1 | 7086 | eh = (struct ppc_link_hash_entry *) eh->elf.u.alias; |
| d311bc8b AM |
7087 | } while (eh != NULL && &eh->elf != h); |
| 7088 | ||
| 7089 | return FALSE; | |
| 7090 | } | |
| 8a2058b5 | 7091 | |
| 8a9e8e72 AM |
7092 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7093 | ||
| 7094 | static bfd_boolean | |
| 7095 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7096 | { | |
| 7097 | struct elf_dyn_relocs *p; | |
| 7098 | ||
| 7099 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7100 | if (p->pc_count != 0) | |
| 7101 | return TRUE; | |
| 7102 | return FALSE; | |
| 7103 | } | |
| 7104 | ||
| 8a2058b5 AM |
7105 | /* Return true if a global entry stub will be created for H. Valid |
| 7106 | for ELFv2 before plt entries have been allocated. */ | |
| 7107 | ||
| 7108 | static bfd_boolean | |
| 7109 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7110 | { | |
| 7111 | struct plt_entry *pent; | |
| 7112 | ||
| 7113 | if (!h->pointer_equality_needed | |
| 7114 | || h->def_regular) | |
| 7115 | return FALSE; | |
| 7116 | ||
| 7117 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7118 | if (pent->plt.refcount > 0 | |
| 7119 | && pent->addend == 0) | |
| 7120 | return TRUE; | |
| 7121 | ||
| 7122 | return FALSE; | |
| 7123 | } | |
| 7124 | ||
| e86ce104 AM |
7125 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7126 | regular object. The current definition is in some section of the | |
| 7127 | dynamic object, but we're not including those sections. We have to | |
| 7128 | change the definition to something the rest of the link can | |
| 7129 | understand. */ | |
| 7130 | ||
| b34976b6 | 7131 | static bfd_boolean |
| 4ce794b7 AM |
7132 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7133 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7134 | { |
| 7135 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7136 | asection *s, *srel; |
| e86ce104 AM |
7137 | |
| 7138 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7139 | if (htab == NULL) |
| 7140 | return FALSE; | |
| e86ce104 AM |
7141 | |
| 7142 | /* Deal with function syms. */ | |
| 7143 | if (h->type == STT_FUNC | |
| e054468f | 7144 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7145 | || h->needs_plt) |
| e86ce104 | 7146 | { |
| 529fe20e AM |
7147 | bfd_boolean local = (((struct ppc_link_hash_entry *) h)->save_res |
| 7148 | || SYMBOL_CALLS_LOCAL (info, h) | |
| 7149 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 7150 | /* Discard dyn_relocs when non-pic if we've decided that a | |
| 7151 | function symbol is local and not an ifunc. We keep dynamic | |
| 7152 | relocs for ifuncs when local rather than always emitting a | |
| 7153 | plt call stub for them and defining the symbol on the call | |
| 7154 | stub. We can't do that for ELFv1 anyway (a function symbol | |
| 7155 | is defined on a descriptor, not code) and it can be faster at | |
| 7156 | run-time due to not needing to bounce through a stub. The | |
| 7157 | dyn_relocs for ifuncs will be applied even in a static | |
| 7158 | executable. */ | |
| 7159 | if (!bfd_link_pic (info) | |
| 7160 | && h->type != STT_GNU_IFUNC | |
| 7161 | && local) | |
| 7162 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 7163 | ||
| e86ce104 AM |
7164 | /* Clear procedure linkage table information for any symbol that |
| 7165 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7166 | struct plt_entry *ent; |
| 7167 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7168 | if (ent->plt.refcount > 0) | |
| 7169 | break; | |
| 8387904d | 7170 | if (ent == NULL |
| 529fe20e | 7171 | || (h->type != STT_GNU_IFUNC && local)) |
| 40b8271b | 7172 | { |
| 411e1bfb | 7173 | h->plt.plist = NULL; |
| f5385ebf | 7174 | h->needs_plt = 0; |
| d1eca1e4 | 7175 | h->pointer_equality_needed = 0; |
| 40b8271b | 7176 | } |
| 8a2058b5 | 7177 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7178 | { |
| d1eca1e4 AM |
7179 | /* Taking a function's address in a read/write section |
| 7180 | doesn't require us to define the function symbol in the | |
| 7181 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7182 | be used instead. The reason we prefer a few more dynamic |
| 7183 | relocs is that calling via a global entry stub costs a | |
| 7184 | few more instructions, and pointer_equality_needed causes | |
| 7185 | extra work in ld.so when resolving these symbols. */ | |
| 529fe20e | 7186 | if (global_entry_stub (h)) |
| d1eca1e4 | 7187 | { |
| ab2477e1 | 7188 | if (!readonly_dynrelocs (h)) |
| 529fe20e AM |
7189 | { |
| 7190 | h->pointer_equality_needed = 0; | |
| 7191 | /* If we haven't seen a branch reloc then we don't need | |
| 7192 | a plt entry. */ | |
| 7193 | if (!h->needs_plt) | |
| 7194 | h->plt.plist = NULL; | |
| 7195 | } | |
| 7196 | else if (!bfd_link_pic (info)) | |
| 7197 | /* We are going to be defining the function symbol on the | |
| 7198 | plt stub, so no dyn_relocs needed when non-pic. */ | |
| 7199 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| d1eca1e4 AM |
7200 | } |
| 7201 | ||
| 3988aed5 AM |
7202 | /* ELFv2 function symbols can't have copy relocs. */ |
| 7203 | return TRUE; | |
| 7204 | } | |
| 7205 | else if (!h->needs_plt | |
| ab2477e1 | 7206 | && !readonly_dynrelocs (h)) |
| 3988aed5 AM |
7207 | { |
| 7208 | /* If we haven't seen a branch reloc then we don't need a | |
| 7209 | plt entry. */ | |
| 7210 | h->plt.plist = NULL; | |
| 7211 | h->pointer_equality_needed = 0; | |
| a345bc8d AM |
7212 | return TRUE; |
| 7213 | } | |
| 5bd4f169 | 7214 | } |
| bbd7ec4a | 7215 | else |
| 411e1bfb | 7216 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7217 | |
| 7218 | /* If this is a weak symbol, and there is a real definition, the | |
| 7219 | processor independent code will have arranged for us to see the | |
| 7220 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7221 | if (h->is_weakalias) |
| 5bd4f169 | 7222 | { |
| 60d67dc8 AM |
7223 | struct elf_link_hash_entry *def = weakdef (h); |
| 7224 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7225 | h->root.u.def.section = def->root.u.def.section; | |
| 7226 | h->root.u.def.value = def->root.u.def.value; | |
| 4a7e5234 AM |
7227 | if (def->root.u.def.section == htab->elf.sdynbss |
| 7228 | || def->root.u.def.section == htab->elf.sdynrelro) | |
| 7229 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| b34976b6 | 7230 | return TRUE; |
| 5bd4f169 AM |
7231 | } |
| 7232 | ||
| 5bd4f169 AM |
7233 | /* If we are creating a shared library, we must presume that the |
| 7234 | only references to the symbol are via the global offset table. | |
| 7235 | For such cases we need not do anything here; the relocations will | |
| 7236 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7237 | if (bfd_link_pic (info)) |
| b34976b6 | 7238 | return TRUE; |
| 5bd4f169 | 7239 | |
| 65f38f15 AM |
7240 | /* If there are no references to this symbol that do not use the |
| 7241 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7242 | if (!h->non_got_ref) |
| b34976b6 | 7243 | return TRUE; |
| 65f38f15 | 7244 | |
| b186458a | 7245 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7246 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7247 | |
| d93d1c80 AM |
7248 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7249 | || info->nocopyreloc | |
| a127494f | 7250 | |
| dce2246a | 7251 | /* If we don't find any dynamic relocs in read-only sections, then |
| d93d1c80 | 7252 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| d311bc8b | 7253 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7254 | |
| d93d1c80 AM |
7255 | /* Protected variables do not work with .dynbss. The copy in |
| 7256 | .dynbss won't be used by the shared library with the protected | |
| 7257 | definition for the variable. Text relocations are preferable | |
| 7258 | to an incorrect program. */ | |
| 7259 | || h->protected_def) | |
| 529fe20e | 7260 | return TRUE; |
| a127494f | 7261 | |
| 5d35169e | 7262 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7263 | { |
| 7264 | /* We should never get here, but unfortunately there are versions | |
| 7265 | of gcc out there that improperly (for this ABI) put initialized | |
| 7266 | function pointers, vtable refs and suchlike in read-only | |
| 7267 | sections. Allow them to proceed, but warn that this might | |
| 7268 | break at runtime. */ | |
| 25f53a85 | 7269 | info->callbacks->einfo |
| bc30df16 | 7270 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7271 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7272 | h->root.root.string); |
| 7273 | } | |
| 5d35169e AM |
7274 | |
| 7275 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7276 | is not a function. */ | |
| 7277 | ||
| 5bd4f169 AM |
7278 | /* We must allocate the symbol in our .dynbss section, which will |
| 7279 | become part of the .bss section of the executable. There will be | |
| 7280 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7281 | object will contain position independent code, so all references | |
| 7282 | from the dynamic object to this symbol will go through the global | |
| 7283 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7284 | determine the address it must put in the global offset table, so | |
| 7285 | both the dynamic object and the regular object will refer to the | |
| 7286 | same memory location for the variable. */ | |
| 5474d94f AM |
7287 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7288 | { | |
| 7289 | s = htab->elf.sdynrelro; | |
| 7290 | srel = htab->elf.sreldynrelro; | |
| 7291 | } | |
| 7292 | else | |
| 7293 | { | |
| 7294 | s = htab->elf.sdynbss; | |
| 7295 | srel = htab->elf.srelbss; | |
| 7296 | } | |
| 1d7e9d18 | 7297 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7298 | { |
| 4a7e5234 AM |
7299 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic |
| 7300 | linker to copy the initial value out of the dynamic object | |
| 7301 | and into the runtime process image. */ | |
| 5474d94f | 7302 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7303 | h->needs_copy = 1; |
| 5bd4f169 AM |
7304 | } |
| 7305 | ||
| 529fe20e AM |
7306 | /* We no longer want dyn_relocs. */ |
| 7307 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 6cabe1ea | 7308 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7309 | } |
| 7310 | ||
| e86ce104 AM |
7311 | /* If given a function descriptor symbol, hide both the function code |
| 7312 | sym and the descriptor. */ | |
| 7313 | static void | |
| 4ce794b7 AM |
7314 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7315 | struct elf_link_hash_entry *h, | |
| 7316 | bfd_boolean force_local) | |
| e86ce104 | 7317 | { |
| 34814b9f | 7318 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7319 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7320 | ||
| 34814b9f AM |
7321 | eh = (struct ppc_link_hash_entry *) h; |
| 7322 | if (eh->is_func_descriptor) | |
| e86ce104 | 7323 | { |
| 34814b9f | 7324 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7325 | |
| 721956f4 | 7326 | if (fh == NULL) |
| d1329ca3 AM |
7327 | { |
| 7328 | const char *p, *q; | |
| b8ac2841 | 7329 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7330 | char save; |
| 7331 | ||
| 7332 | /* We aren't supposed to use alloca in BFD because on | |
| 7333 | systems which do not have alloca the version in libiberty | |
| 7334 | calls xmalloc, which might cause the program to crash | |
| 7335 | when it runs out of memory. This function doesn't have a | |
| 7336 | return status, so there's no way to gracefully return an | |
| 7337 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7338 | accessed; It's either a string in an ELF string table, |
| 7339 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7340 | |
| 34814b9f | 7341 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7342 | save = *p; |
| 7343 | *(char *) p = '.'; | |
| 34814b9f | 7344 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7345 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7346 | *(char *) p = save; |
| 7347 | ||
| 7348 | /* Unfortunately, if it so happens that the string we were | |
| 7349 | looking for was allocated immediately before this string, | |
| 7350 | then we overwrote the string terminator. That's the only | |
| 7351 | reason the lookup should fail. */ | |
| 7352 | if (fh == NULL) | |
| 7353 | { | |
| 34814b9f AM |
7354 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7355 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7356 | --q, --p; |
| 34814b9f AM |
7357 | if (q < eh->elf.root.root.string && *p == '.') |
| 7358 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7359 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7360 | } |
| 7361 | if (fh != NULL) | |
| 7362 | { | |
| 34814b9f AM |
7363 | eh->oh = fh; |
| 7364 | fh->oh = eh; | |
| d1329ca3 AM |
7365 | } |
| 7366 | } | |
| e86ce104 | 7367 | if (fh != NULL) |
| 34814b9f | 7368 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7369 | } |
| 7370 | } | |
| 7371 | ||
| 411e1bfb | 7372 | static bfd_boolean |
| 8843416a AM |
7373 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7374 | Elf_Internal_Sym **symp, | |
| 7375 | asection **symsecp, | |
| f961d9dd | 7376 | unsigned char **tls_maskp, |
| 8843416a AM |
7377 | Elf_Internal_Sym **locsymsp, |
| 7378 | unsigned long r_symndx, | |
| 7379 | bfd *ibfd) | |
| 411e1bfb | 7380 | { |
| 0ffa91dd | 7381 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7382 | |
| 7383 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7384 | { | |
| 7385 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7386 | struct elf_link_hash_entry *h; | |
| 7387 | ||
| 7388 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7389 | h = elf_follow_link (h); |
| 411e1bfb AM |
7390 | |
| 7391 | if (hp != NULL) | |
| 7392 | *hp = h; | |
| 7393 | ||
| 7394 | if (symp != NULL) | |
| 7395 | *symp = NULL; | |
| 7396 | ||
| 7397 | if (symsecp != NULL) | |
| 7398 | { | |
| 7399 | asection *symsec = NULL; | |
| 7400 | if (h->root.type == bfd_link_hash_defined | |
| 7401 | || h->root.type == bfd_link_hash_defweak) | |
| 7402 | symsec = h->root.u.def.section; | |
| 7403 | *symsecp = symsec; | |
| 7404 | } | |
| 7405 | ||
| e7b938ca | 7406 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7407 | { |
| 7408 | struct ppc_link_hash_entry *eh; | |
| 7409 | ||
| 7410 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7411 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7412 | } |
| 7413 | } | |
| 7414 | else | |
| 7415 | { | |
| 7416 | Elf_Internal_Sym *sym; | |
| 7417 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7418 | ||
| 7419 | if (locsyms == NULL) | |
| 7420 | { | |
| 7421 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7422 | if (locsyms == NULL) | |
| 7423 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7424 | symtab_hdr->sh_info, | |
| 7425 | 0, NULL, NULL, NULL); | |
| 7426 | if (locsyms == NULL) | |
| 7427 | return FALSE; | |
| 7428 | *locsymsp = locsyms; | |
| 7429 | } | |
| 7430 | sym = locsyms + r_symndx; | |
| 7431 | ||
| 7432 | if (hp != NULL) | |
| 7433 | *hp = NULL; | |
| 7434 | ||
| 7435 | if (symp != NULL) | |
| 7436 | *symp = sym; | |
| 7437 | ||
| 7438 | if (symsecp != NULL) | |
| cb33740c | 7439 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7440 | |
| e7b938ca | 7441 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7442 | { |
| 7443 | struct got_entry **lgot_ents; | |
| f961d9dd | 7444 | unsigned char *tls_mask; |
| 411e1bfb | 7445 | |
| e7b938ca | 7446 | tls_mask = NULL; |
| 411e1bfb AM |
7447 | lgot_ents = elf_local_got_ents (ibfd); |
| 7448 | if (lgot_ents != NULL) | |
| 7449 | { | |
| e054468f AM |
7450 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7451 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7452 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7453 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7454 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7455 | } |
| e7b938ca | 7456 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7457 | } |
| 7458 | } | |
| 7459 | return TRUE; | |
| 7460 | } | |
| 7461 | ||
| e7b938ca | 7462 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7463 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7464 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7465 | |
| 7466 | static int | |
| f961d9dd | 7467 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7468 | unsigned long *toc_symndx, |
| 7469 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7470 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7471 | const Elf_Internal_Rela *rel, |
| 7472 | bfd *ibfd) | |
| 411e1bfb AM |
7473 | { |
| 7474 | unsigned long r_symndx; | |
| 0d4792f7 | 7475 | int next_r; |
| 411e1bfb AM |
7476 | struct elf_link_hash_entry *h; |
| 7477 | Elf_Internal_Sym *sym; | |
| 7478 | asection *sec; | |
| 7479 | bfd_vma off; | |
| 7480 | ||
| 7481 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7482 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7483 | return 0; |
| 411e1bfb | 7484 | |
| e7b938ca | 7485 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7486 | || sec == NULL |
| 6bee8834 | 7487 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7488 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7489 | return 1; |
| 411e1bfb AM |
7490 | |
| 7491 | /* Look inside a TOC section too. */ | |
| 7492 | if (h != NULL) | |
| 7493 | { | |
| 7494 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7495 | off = h->root.u.def.value; | |
| 7496 | } | |
| 7497 | else | |
| 7498 | off = sym->st_value; | |
| 7499 | off += rel->r_addend; | |
| 7500 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7501 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7502 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7503 | if (toc_symndx != NULL) |
| 7504 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7505 | if (toc_addend != NULL) |
| 7506 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7507 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7508 | return 0; | |
| 854b41e7 | 7509 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7510 | && (next_r == -1 || next_r == -2)) |
| 7511 | return 1 - next_r; | |
| 951fd09b | 7512 | return 1; |
| 411e1bfb AM |
7513 | } |
| 7514 | ||
| 3b421ab3 AM |
7515 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7516 | ||
| 7517 | static struct tocsave_entry * | |
| 7518 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7519 | enum insert_option insert, | |
| 7520 | Elf_Internal_Sym **local_syms, | |
| 7521 | const Elf_Internal_Rela *irela, | |
| 7522 | bfd *ibfd) | |
| 7523 | { | |
| 7524 | unsigned long r_indx; | |
| 7525 | struct elf_link_hash_entry *h; | |
| 7526 | Elf_Internal_Sym *sym; | |
| 7527 | struct tocsave_entry ent, *p; | |
| 7528 | hashval_t hash; | |
| 7529 | struct tocsave_entry **slot; | |
| 7530 | ||
| 7531 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7532 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7533 | return NULL; | |
| 7534 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7535 | { | |
| 4eca0228 | 7536 | _bfd_error_handler |
| 10463f39 | 7537 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7538 | return NULL; |
| 7539 | } | |
| 7540 | ||
| 7541 | if (h != NULL) | |
| 7542 | ent.offset = h->root.u.def.value; | |
| 7543 | else | |
| 7544 | ent.offset = sym->st_value; | |
| 7545 | ent.offset += irela->r_addend; | |
| 7546 | ||
| 7547 | hash = tocsave_htab_hash (&ent); | |
| 7548 | slot = ((struct tocsave_entry **) | |
| 7549 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7550 | if (slot == NULL) | |
| 7551 | return NULL; | |
| 7552 | ||
| 7553 | if (*slot == NULL) | |
| 7554 | { | |
| 7555 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7556 | if (p == NULL) | |
| 7557 | return NULL; | |
| 7558 | *p = ent; | |
| 7559 | *slot = p; | |
| 7560 | } | |
| 7561 | return *slot; | |
| 7562 | } | |
| 7563 | ||
| 754021d0 | 7564 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7565 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7566 | |
| 7567 | static bfd_boolean | |
| 7568 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7569 | { | |
| 7570 | struct ppc_link_hash_entry *eh; | |
| 7571 | asection *sym_sec; | |
| 74f0fb50 | 7572 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7573 | |
| 7574 | if (h->root.type == bfd_link_hash_indirect) | |
| 7575 | return TRUE; | |
| 7576 | ||
| 754021d0 AM |
7577 | if (h->root.type != bfd_link_hash_defined |
| 7578 | && h->root.type != bfd_link_hash_defweak) | |
| 7579 | return TRUE; | |
| 7580 | ||
| 7581 | eh = (struct ppc_link_hash_entry *) h; | |
| 7582 | if (eh->adjust_done) | |
| 7583 | return TRUE; | |
| 7584 | ||
| 7585 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7586 | opd = get_opd_info (sym_sec); |
| 7587 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7588 | { |
| 51aecdc5 | 7589 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7590 | if (adjust == -1) |
| 7591 | { | |
| 7592 | /* This entry has been deleted. */ | |
| b3fac117 | 7593 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7594 | if (dsec == NULL) |
| 7595 | { | |
| 7596 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7597 | if (discarded_section (dsec)) |
| 81688140 | 7598 | { |
| b3fac117 | 7599 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7600 | break; |
| 7601 | } | |
| 7602 | } | |
| 4025353c | 7603 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7604 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7605 | } |
| 7606 | else | |
| 7607 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7608 | eh->adjust_done = 1; |
| 7609 | } | |
| 7610 | return TRUE; | |
| 7611 | } | |
| 7612 | ||
| 8c1d1bb8 | 7613 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7614 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7615 | have already been determined. */ |
| 7616 | ||
| 7617 | static bfd_boolean | |
| 7618 | dec_dynrel_count (bfd_vma r_info, | |
| 7619 | asection *sec, | |
| 7620 | struct bfd_link_info *info, | |
| 7621 | Elf_Internal_Sym **local_syms, | |
| 7622 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7623 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7624 | { |
| 7625 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7626 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7627 | |
| 7628 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7629 | should be kept in sync with the code in check_relocs. */ | |
| 7630 | r_type = ELF64_R_TYPE (r_info); | |
| 7631 | switch (r_type) | |
| 7632 | { | |
| 7633 | default: | |
| 7634 | return TRUE; | |
| 7635 | ||
| 7636 | case R_PPC64_TPREL16: | |
| 7637 | case R_PPC64_TPREL16_LO: | |
| 7638 | case R_PPC64_TPREL16_HI: | |
| 7639 | case R_PPC64_TPREL16_HA: | |
| 7640 | case R_PPC64_TPREL16_DS: | |
| 7641 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7642 | case R_PPC64_TPREL16_HIGH: |
| 7643 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7644 | case R_PPC64_TPREL16_HIGHER: |
| 7645 | case R_PPC64_TPREL16_HIGHERA: | |
| 7646 | case R_PPC64_TPREL16_HIGHEST: | |
| 7647 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7648 | case R_PPC64_TPREL64: |
| 7649 | case R_PPC64_DTPMOD64: | |
| 7650 | case R_PPC64_DTPREL64: | |
| 7651 | case R_PPC64_ADDR64: | |
| 7652 | case R_PPC64_REL30: | |
| 7653 | case R_PPC64_REL32: | |
| 7654 | case R_PPC64_REL64: | |
| 7655 | case R_PPC64_ADDR14: | |
| 7656 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7657 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7658 | case R_PPC64_ADDR16: | |
| 7659 | case R_PPC64_ADDR16_DS: | |
| 7660 | case R_PPC64_ADDR16_HA: | |
| 7661 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7662 | case R_PPC64_ADDR16_HIGH: |
| 7663 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7664 | case R_PPC64_ADDR16_HIGHER: |
| 7665 | case R_PPC64_ADDR16_HIGHERA: | |
| 7666 | case R_PPC64_ADDR16_HIGHEST: | |
| 7667 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7668 | case R_PPC64_ADDR16_LO: | |
| 7669 | case R_PPC64_ADDR16_LO_DS: | |
| 7670 | case R_PPC64_ADDR24: | |
| 7671 | case R_PPC64_ADDR32: | |
| 7672 | case R_PPC64_UADDR16: | |
| 7673 | case R_PPC64_UADDR32: | |
| 7674 | case R_PPC64_UADDR64: | |
| 7675 | case R_PPC64_TOC: | |
| 7676 | break; | |
| 7677 | } | |
| 7678 | ||
| 7679 | if (local_syms != NULL) | |
| 7680 | { | |
| 7681 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7682 | bfd *ibfd = sec->owner; |
| 7683 | ||
| 7684 | r_symndx = ELF64_R_SYM (r_info); | |
| 7685 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7686 | return FALSE; | |
| 7687 | } | |
| 7688 | ||
| 0e1862bb | 7689 | if ((bfd_link_pic (info) |
| 1d483afe | 7690 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7691 | || (h != NULL |
| 198f1157 | 7692 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7693 | || h->root.type == bfd_link_hash_defweak |
| 7694 | || !h->def_regular)))) | |
| 7695 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7696 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7697 | && h != NULL |
| 7698 | && (h->root.type == bfd_link_hash_defweak | |
| 7699 | || !h->def_regular))) | |
| 7700 | ; | |
| 7701 | else | |
| 7702 | return TRUE; | |
| 7703 | ||
| 7704 | if (h != NULL) | |
| 6edfbbad | 7705 | { |
| 19e08130 AM |
7706 | struct elf_dyn_relocs *p; |
| 7707 | struct elf_dyn_relocs **pp; | |
| 7708 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7709 | ||
| 7710 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7711 | with local syms for a given section. Also, symbol flags are | |
| 7712 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7713 | report a dynreloc miscount. */ | |
| 7714 | if (*pp == NULL && info->gc_sections) | |
| 7715 | return TRUE; | |
| 7716 | ||
| 7717 | while ((p = *pp) != NULL) | |
| 60124e18 | 7718 | { |
| 19e08130 AM |
7719 | if (p->sec == sec) |
| 7720 | { | |
| 7721 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7722 | p->pc_count -= 1; | |
| 7723 | p->count -= 1; | |
| 7724 | if (p->count == 0) | |
| 7725 | *pp = p->next; | |
| 7726 | return TRUE; | |
| 7727 | } | |
| 7728 | pp = &p->next; | |
| 60124e18 | 7729 | } |
| 6edfbbad | 7730 | } |
| 19e08130 AM |
7731 | else |
| 7732 | { | |
| 7733 | struct ppc_dyn_relocs *p; | |
| 7734 | struct ppc_dyn_relocs **pp; | |
| 7735 | void *vpp; | |
| 7736 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7737 | |
| 19e08130 AM |
7738 | if (local_syms == NULL) |
| 7739 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7740 | if (sym_sec == NULL) | |
| 7741 | sym_sec = sec; | |
| c57da1a7 | 7742 | |
| 19e08130 AM |
7743 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7744 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7745 | ||
| 7746 | if (*pp == NULL && info->gc_sections) | |
| 7747 | return TRUE; | |
| 7748 | ||
| 7749 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7750 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7751 | { |
| 19e08130 AM |
7752 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7753 | { | |
| 7754 | p->count -= 1; | |
| 7755 | if (p->count == 0) | |
| 7756 | *pp = p->next; | |
| 7757 | return TRUE; | |
| 7758 | } | |
| 7759 | pp = &p->next; | |
| 8c1d1bb8 | 7760 | } |
| 8c1d1bb8 AM |
7761 | } |
| 7762 | ||
| 695344c0 | 7763 | /* xgettext:c-format */ |
| 8de848d8 | 7764 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7765 | sec->owner, sec); |
| 8c1d1bb8 AM |
7766 | bfd_set_error (bfd_error_bad_value); |
| 7767 | return FALSE; | |
| 7768 | } | |
| 7769 | ||
| 754021d0 AM |
7770 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7771 | only remove those associated with functions in discarded link-once | |
| 7772 | sections, or weakly defined functions that have been overridden. It | |
| 7773 | would be possible to remove many more entries for statically linked | |
| 7774 | applications. */ | |
| 7775 | ||
| b34976b6 | 7776 | bfd_boolean |
| e7d1c40c | 7777 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7778 | { |
| 7779 | bfd *ibfd; | |
| 754021d0 | 7780 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7781 | asection *need_pad = NULL; |
| e7d1c40c AM |
7782 | struct ppc_link_hash_table *htab; |
| 7783 | ||
| 7784 | htab = ppc_hash_table (info); | |
| 7785 | if (htab == NULL) | |
| 7786 | return FALSE; | |
| 1e2f5b6e | 7787 | |
| c72f2fb2 | 7788 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7789 | { |
| 7790 | asection *sec; | |
| 7791 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7792 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7793 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7794 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7795 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7796 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7797 | |
| 854b41e7 AM |
7798 | if (!is_ppc64_elf (ibfd)) |
| 7799 | continue; | |
| 7800 | ||
| 1e2f5b6e | 7801 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7802 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7803 | continue; |
| 7804 | ||
| dbaa2011 | 7805 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7806 | continue; |
| 7807 | ||
| 1e2f5b6e AM |
7808 | if (sec->output_section == bfd_abs_section_ptr) |
| 7809 | continue; | |
| 7810 | ||
| 7811 | /* Look through the section relocs. */ | |
| 7812 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7813 | continue; | |
| 7814 | ||
| 6cdc0ccc | 7815 | local_syms = NULL; |
| 0ffa91dd | 7816 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7817 | |
| 7818 | /* Read the relocations. */ | |
| 4ce794b7 | 7819 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7820 | info->keep_memory); |
| 1e2f5b6e | 7821 | if (relstart == NULL) |
| b34976b6 | 7822 | return FALSE; |
| 1e2f5b6e AM |
7823 | |
| 7824 | /* First run through the relocs to check they are sane, and to | |
| 7825 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7826 | need_edit = FALSE; |
| 51aecdc5 | 7827 | broken = FALSE; |
| 3f764659 | 7828 | need_pad = sec; |
| 1e2f5b6e | 7829 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7830 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7831 | { |
| 04c9666a | 7832 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7833 | unsigned long r_symndx; |
| 7834 | asection *sym_sec; | |
| 7835 | struct elf_link_hash_entry *h; | |
| 7836 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7837 | bfd_vma offset; |
| 1e2f5b6e | 7838 | |
| 51aecdc5 | 7839 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7840 | only interested in the reloc pointing to a function entry |
| 7841 | point. */ | |
| 51aecdc5 AM |
7842 | offset = rel->r_offset; |
| 7843 | if (rel + 1 == relend | |
| 7844 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7845 | { |
| 7846 | /* If someone messes with .opd alignment then after a | |
| 7847 | "ld -r" we might have padding in the middle of .opd. | |
| 7848 | Also, there's nothing to prevent someone putting | |
| 7849 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7850 | optimization for them! */ |
| 3f764659 | 7851 | broken_opd: |
| 4eca0228 | 7852 | _bfd_error_handler |
| d003868e | 7853 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7854 | broken = TRUE; |
| 1e2f5b6e AM |
7855 | break; |
| 7856 | } | |
| 7857 | ||
| 50bc7936 AM |
7858 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7859 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7860 | { | |
| 4eca0228 | 7861 | _bfd_error_handler |
| 695344c0 | 7862 | /* xgettext:c-format */ |
| d003868e AM |
7863 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7864 | ibfd, r_type); | |
| 51aecdc5 | 7865 | broken = TRUE; |
| 50bc7936 AM |
7866 | break; |
| 7867 | } | |
| 7868 | ||
| 1e2f5b6e | 7869 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7870 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7871 | r_symndx, ibfd)) | |
| 50bc7936 | 7872 | goto error_ret; |
| 1e2f5b6e AM |
7873 | |
| 7874 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7875 | { | |
| 411e1bfb AM |
7876 | const char *sym_name; |
| 7877 | if (h != NULL) | |
| 7878 | sym_name = h->root.root.string; | |
| 7879 | else | |
| 26c61ae5 L |
7880 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7881 | sym_sec); | |
| 411e1bfb | 7882 | |
| 4eca0228 | 7883 | _bfd_error_handler |
| 695344c0 | 7884 | /* xgettext:c-format */ |
| d003868e AM |
7885 | (_("%B: undefined sym `%s' in .opd section"), |
| 7886 | ibfd, sym_name); | |
| 51aecdc5 | 7887 | broken = TRUE; |
| 1e2f5b6e AM |
7888 | break; |
| 7889 | } | |
| 7890 | ||
| 51020317 AM |
7891 | /* opd entries are always for functions defined in the |
| 7892 | current input bfd. If the symbol isn't defined in the | |
| 7893 | input bfd, then we won't be using the function in this | |
| 7894 | bfd; It must be defined in a linkonce section in another | |
| 7895 | bfd, or is weak. It's also possible that we are | |
| 7896 | discarding the function due to a linker script /DISCARD/, | |
| 7897 | which we test for via the output_section. */ | |
| 7898 | if (sym_sec->owner != ibfd | |
| 7899 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7900 | need_edit = TRUE; |
| 1e2f5b6e | 7901 | |
| 50bc7936 | 7902 | rel += 2; |
| 51aecdc5 AM |
7903 | if (rel + 1 == relend |
| 7904 | || (rel + 2 < relend | |
| 7905 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7906 | ++rel; | |
| 7907 | ||
| 7908 | if (rel == relend) | |
| 3f764659 JJ |
7909 | { |
| 7910 | if (sec->size == offset + 24) | |
| 7911 | { | |
| 7912 | need_pad = NULL; | |
| 7913 | break; | |
| 7914 | } | |
| 51aecdc5 | 7915 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7916 | { |
| 7917 | cnt_16b++; | |
| 7918 | break; | |
| 7919 | } | |
| 7920 | goto broken_opd; | |
| 7921 | } | |
| 3f764659 JJ |
7922 | else if (rel + 1 < relend |
| 7923 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7924 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7925 | { | |
| 51aecdc5 AM |
7926 | if (rel[0].r_offset == offset + 16) |
| 7927 | cnt_16b++; | |
| 7928 | else if (rel[0].r_offset != offset + 24) | |
| 7929 | goto broken_opd; | |
| 3f764659 JJ |
7930 | } |
| 7931 | else | |
| 7932 | goto broken_opd; | |
| 1e2f5b6e AM |
7933 | } |
| 7934 | ||
| e7d1c40c | 7935 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7936 | |
| 51aecdc5 | 7937 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7938 | { |
| 7939 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7940 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7941 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7942 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7943 | bfd_size_type amt; |
| 7944 | ||
| 983bddc8 | 7945 | new_contents = NULL; |
| 51aecdc5 | 7946 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7947 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7948 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7949 | if (opd->adjust == NULL) |
| 7950 | return FALSE; | |
| 1e2f5b6e AM |
7951 | |
| 7952 | /* This seems a waste of time as input .opd sections are all | |
| 7953 | zeros as generated by gcc, but I suppose there's no reason | |
| 7954 | this will always be so. We might start putting something in | |
| 7955 | the third word of .opd entries. */ | |
| 7956 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7957 | { | |
| eea6121a AM |
7958 | bfd_byte *loc; |
| 7959 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7960 | { |
| eea6121a AM |
7961 | if (loc != NULL) |
| 7962 | free (loc); | |
| 50bc7936 | 7963 | error_ret: |
| 6cdc0ccc AM |
7964 | if (local_syms != NULL |
| 7965 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7966 | free (local_syms); | |
| 6cdc0ccc AM |
7967 | if (elf_section_data (sec)->relocs != relstart) |
| 7968 | free (relstart); | |
| b34976b6 | 7969 | return FALSE; |
| 6cdc0ccc | 7970 | } |
| 1e2f5b6e AM |
7971 | sec->contents = loc; |
| 7972 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7973 | } | |
| 7974 | ||
| 7975 | elf_section_data (sec)->relocs = relstart; | |
| 7976 | ||
| 3f764659 | 7977 | new_contents = sec->contents; |
| 3f764659 JJ |
7978 | if (add_aux_fields) |
| 7979 | { | |
| 7980 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7981 | if (new_contents == NULL) | |
| 7982 | return FALSE; | |
| 51aecdc5 | 7983 | need_pad = NULL; |
| 3f764659 | 7984 | } |
| b4f4e59f AM |
7985 | wptr = new_contents; |
| 7986 | rptr = sec->contents; | |
| 1e2f5b6e | 7987 | write_rel = relstart; |
| 51aecdc5 | 7988 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7989 | { |
| 50bc7936 AM |
7990 | unsigned long r_symndx; |
| 7991 | asection *sym_sec; | |
| 7992 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7993 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7994 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7995 | long opd_ent_size; |
| 7996 | Elf_Internal_Rela *next_rel; | |
| 7997 | bfd_boolean skip; | |
| 50bc7936 AM |
7998 | |
| 7999 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8000 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8001 | r_symndx, ibfd)) |
| 50bc7936 AM |
8002 | goto error_ret; |
| 8003 | ||
| 51aecdc5 AM |
8004 | next_rel = rel + 2; |
| 8005 | if (next_rel + 1 == relend | |
| 8006 | || (next_rel + 2 < relend | |
| 8007 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8008 | ++next_rel; | |
| 8009 | ||
| 8010 | /* See if the .opd entry is full 24 byte or | |
| 8011 | 16 byte (with fd_aux entry overlapped with next | |
| 8012 | fd_func). */ | |
| 8013 | opd_ent_size = 24; | |
| 8014 | if (next_rel == relend) | |
| 1e2f5b6e | 8015 | { |
| 51aecdc5 | 8016 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8017 | opd_ent_size = 16; |
| 51aecdc5 AM |
8018 | } |
| 8019 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8020 | opd_ent_size = 16; | |
| 3f764659 | 8021 | |
| 51aecdc5 AM |
8022 | if (h != NULL |
| 8023 | && h->root.root.string[0] == '.') | |
| 8024 | { | |
| 8c5b4e52 AM |
8025 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8026 | if (fdh != NULL) | |
| 8027 | { | |
| 8028 | fdh = ppc_follow_link (fdh); | |
| 8029 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8030 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8031 | fdh = NULL; | |
| 8032 | } | |
| 51aecdc5 | 8033 | } |
| 1e2f5b6e | 8034 | |
| 51aecdc5 AM |
8035 | skip = (sym_sec->owner != ibfd |
| 8036 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8037 | if (skip) | |
| 8038 | { | |
| 8039 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8040 | { |
| 51aecdc5 AM |
8041 | /* Arrange for the function descriptor sym |
| 8042 | to be dropped. */ | |
| 8043 | fdh->elf.root.u.def.value = 0; | |
| 8044 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8045 | } |
| 51aecdc5 | 8046 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8047 | |
| 0e1862bb | 8048 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8049 | rel = next_rel; |
| 8050 | else | |
| 8051 | while (1) | |
| 8052 | { | |
| 8053 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8054 | NULL, h, sym)) | |
| 8055 | goto error_ret; | |
| 754021d0 | 8056 | |
| 51aecdc5 AM |
8057 | if (++rel == next_rel) |
| 8058 | break; | |
| 1e2f5b6e | 8059 | |
| 51aecdc5 AM |
8060 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8061 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8062 | r_symndx, ibfd)) | |
| 8063 | goto error_ret; | |
| 8064 | } | |
| 50bc7936 AM |
8065 | } |
| 8066 | else | |
| 1e2f5b6e | 8067 | { |
| 51aecdc5 AM |
8068 | /* We'll be keeping this opd entry. */ |
| 8069 | long adjust; | |
| 8070 | ||
| 8071 | if (fdh != NULL) | |
| 8072 | { | |
| 8073 | /* Redefine the function descriptor symbol to | |
| 8074 | this location in the opd section. It is | |
| 8075 | necessary to update the value here rather | |
| 8076 | than using an array of adjustments as we do | |
| 8077 | for local symbols, because various places | |
| 8078 | in the generic ELF code use the value | |
| 8079 | stored in u.def.value. */ | |
| 8080 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8081 | fdh->adjust_done = 1; | |
| 8082 | } | |
| 8083 | ||
| 8084 | /* Local syms are a bit tricky. We could | |
| 8085 | tweak them as they can be cached, but | |
| 8086 | we'd need to look through the local syms | |
| 8087 | for the function descriptor sym which we | |
| 8088 | don't have at the moment. So keep an | |
| 8089 | array of adjustments. */ | |
| 8090 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8091 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8092 | ||
| 8093 | if (wptr != rptr) | |
| 8094 | memcpy (wptr, rptr, opd_ent_size); | |
| 8095 | wptr += opd_ent_size; | |
| 8096 | if (add_aux_fields && opd_ent_size == 16) | |
| 8097 | { | |
| 8098 | memset (wptr, '\0', 8); | |
| 8099 | wptr += 8; | |
| 8100 | } | |
| 8101 | ||
| 50bc7936 | 8102 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8103 | new opd entries. */ |
| 8104 | for ( ; rel != next_rel; ++rel) | |
| 8105 | { | |
| 8106 | rel->r_offset += adjust; | |
| 8107 | if (write_rel != rel) | |
| 8108 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8109 | ++write_rel; | |
| 8110 | } | |
| 1e2f5b6e | 8111 | } |
| 51aecdc5 AM |
8112 | |
| 8113 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8114 | } |
| 8115 | ||
| 3f764659 | 8116 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8117 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8118 | if (add_aux_fields) |
| 8119 | { | |
| 8120 | free (sec->contents); | |
| 8121 | sec->contents = new_contents; | |
| 8122 | } | |
| 8123 | ||
| 05bf9422 | 8124 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8125 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8126 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8127 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8128 | some_edited = TRUE; |
| 1e2f5b6e | 8129 | } |
| 6cdc0ccc | 8130 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8131 | free (relstart); |
| 6cdc0ccc | 8132 | |
| 411e1bfb AM |
8133 | if (local_syms != NULL |
| 8134 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8135 | { | |
| 8136 | if (!info->keep_memory) | |
| 8137 | free (local_syms); | |
| 8138 | else | |
| 8139 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8140 | } | |
| 8141 | } | |
| 8142 | ||
| 754021d0 AM |
8143 | if (some_edited) |
| 8144 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8145 | ||
| 3f764659 JJ |
8146 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8147 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8148 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8149 | { |
| 8150 | bfd_byte *p; | |
| 8151 | ||
| 8152 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8153 | { | |
| 8154 | BFD_ASSERT (need_pad->size > 0); | |
| 8155 | ||
| 8156 | p = bfd_malloc (need_pad->size + 8); | |
| 8157 | if (p == NULL) | |
| 8158 | return FALSE; | |
| 699733f6 | 8159 | |
| 3f764659 JJ |
8160 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8161 | p, 0, need_pad->size)) | |
| 8162 | return FALSE; | |
| 8163 | ||
| 8164 | need_pad->contents = p; | |
| 8165 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8166 | } | |
| 8167 | else | |
| 8168 | { | |
| 8169 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8170 | if (p == NULL) | |
| 8171 | return FALSE; | |
| 8172 | ||
| 8173 | need_pad->contents = p; | |
| 8174 | } | |
| 8175 | ||
| 8176 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8177 | need_pad->size += 8; | |
| 8178 | } | |
| 8179 | ||
| 411e1bfb AM |
8180 | return TRUE; |
| 8181 | } | |
| 8182 | ||
| e1918d23 | 8183 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8184 | |
| e1918d23 | 8185 | asection * |
| e7d1c40c | 8186 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8187 | { |
| 411e1bfb AM |
8188 | struct ppc_link_hash_table *htab; |
| 8189 | ||
| 411e1bfb | 8190 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8191 | if (htab == NULL) |
| 8192 | return NULL; | |
| 8193 | ||
| ee67d69a AM |
8194 | if (abiversion (info->output_bfd) == 1) |
| 8195 | htab->opd_abi = 1; | |
| 8196 | ||
| e7d1c40c | 8197 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8198 | htab->do_multi_toc = 0; |
| 8199 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8200 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8201 | |
| 8b5f1ed8 AM |
8202 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8203 | with symbol interposition. For example, glibc libpthread.so and | |
| 8204 | libc.so duplicate many pthread symbols, with a fallback | |
| 8205 | implementation in libc.so. In some cases the fallback does more | |
| 8206 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8207 | is one such symbol: the libpthread.so implementation is | |
| 8208 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8209 | An app that "cleverly" uses dlopen to only load necessary | |
| 8210 | libraries at runtime may omit loading libpthread.so when not | |
| 8211 | running multi-threaded, which then results in the libc.so | |
| 8212 | fallback symbols being used and ld.so complaining. Now there | |
| 8213 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8214 | pthread situation, but that may not be the only case where | |
| 8215 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8216 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8217 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8218 | if (htab->params->plt_localentry0 |
| 8219 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8220 | FALSE, FALSE, FALSE) == NULL) | |
| 8221 | info->callbacks->einfo | |
| 8222 | (_("%P: warning: --plt-localentry is especially dangerous without " | |
| 8223 | "ld.so support to detect ABI violations.\n")); | |
| f378ab09 | 8224 | |
| 3a71aa26 AM |
8225 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8226 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8227 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8228 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8229 | if (htab->tls_get_addr != NULL) | |
| 8230 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8231 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8232 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8233 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8234 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8235 | { |
| 8236 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8237 | ||
| 8238 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8239 | FALSE, FALSE, TRUE); | |
| 8240 | if (opt != NULL) | |
| 8241 | func_desc_adjust (opt, info); | |
| 8242 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8243 | FALSE, FALSE, TRUE); | |
| 8244 | if (opt_fd != NULL | |
| 8245 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8246 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8247 | { | |
| 8248 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8249 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8250 | be calling __tls_get_addr via a plt call stub, then | |
| 8251 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8252 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8253 | if (htab->elf.dynamic_sections_created | |
| 8254 | && tga_fd != NULL | |
| 8255 | && (tga_fd->type == STT_FUNC | |
| 8256 | || tga_fd->needs_plt) | |
| 8257 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8258 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8259 | { |
| 8260 | struct plt_entry *ent; | |
| 8261 | ||
| 8262 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8263 | if (ent->plt.refcount > 0) | |
| 8264 | break; | |
| 8265 | if (ent != NULL) | |
| 8266 | { | |
| 8267 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8268 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8269 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8270 | opt_fd->mark = 1; |
| a7f2871e AM |
8271 | if (opt_fd->dynindx != -1) |
| 8272 | { | |
| 8273 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8274 | opt_fd->dynindx = -1; | |
| 8275 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8276 | opt_fd->dynstr_index); | |
| 8277 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8278 | return NULL; |
| a7f2871e AM |
8279 | } |
| 8280 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8281 | tga = &htab->tls_get_addr->elf; | |
| 8282 | if (opt != NULL && tga != NULL) | |
| 8283 | { | |
| 8284 | tga->root.type = bfd_link_hash_indirect; | |
| 8285 | tga->root.u.i.link = &opt->root; | |
| 8286 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8287 | opt->mark = 1; |
| a7f2871e AM |
8288 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8289 | tga->forced_local); | |
| 8290 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8291 | } | |
| 8292 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8293 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8294 | if (htab->tls_get_addr != NULL) | |
| 8295 | { | |
| 8296 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8297 | htab->tls_get_addr->is_func = 1; | |
| 8298 | } | |
| 8299 | } | |
| 8300 | } | |
| 8301 | } | |
| 7c9cf415 AM |
8302 | else if (htab->params->tls_get_addr_opt < 0) |
| 8303 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8304 | } |
| 33c0ec9d | 8305 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8306 | } |
| 8387904d | 8307 | |
| 3a71aa26 AM |
8308 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8309 | HASH1 or HASH2. */ | |
| 8387904d | 8310 | |
| 3a71aa26 AM |
8311 | static bfd_boolean |
| 8312 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8313 | const Elf_Internal_Rela *rel, | |
| 8314 | const struct ppc_link_hash_entry *hash1, | |
| 8315 | const struct ppc_link_hash_entry *hash2) | |
| 8316 | { | |
| 8317 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8318 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8319 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8320 | ||
| e054468f | 8321 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8322 | { |
| 3a71aa26 AM |
8323 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8324 | struct elf_link_hash_entry *h; | |
| 8387904d | 8325 | |
| 3a71aa26 | 8326 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8327 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8328 | if (h == &hash1->elf || h == &hash2->elf) |
| 8329 | return TRUE; | |
| a48ebf4d | 8330 | } |
| 3a71aa26 | 8331 | return FALSE; |
| 951fd09b | 8332 | } |
| 411e1bfb | 8333 | |
| 951fd09b AM |
8334 | /* Run through all the TLS relocs looking for optimization |
| 8335 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8336 | a preliminary section layout so that we know the TLS segment | |
| 8337 | offsets. We can't optimize earlier because some optimizations need | |
| 8338 | to know the tp offset, and we need to optimize before allocating | |
| 8339 | dynamic relocations. */ | |
| 8340 | ||
| 8341 | bfd_boolean | |
| 33c0ec9d | 8342 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8343 | { |
| 8344 | bfd *ibfd; | |
| 8345 | asection *sec; | |
| 8346 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8347 | unsigned char *toc_ref; |
| 102890f0 | 8348 | int pass; |
| 951fd09b | 8349 | |
| 3cbc1e5e | 8350 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8351 | return TRUE; |
| 8352 | ||
| 951fd09b | 8353 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8354 | if (htab == NULL) |
| 8355 | return FALSE; | |
| 8356 | ||
| 663a1470 AM |
8357 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8358 | entries involved with tls relocs, and check that tls relocs | |
| 8359 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8360 | such a call. If they are not, we can't do any tls optimization. | |
| 8361 | On the second pass twiddle tls_mask flags to notify | |
| 8362 | relocate_section that optimization can be done, and adjust got | |
| 8363 | and plt refcounts. */ | |
| 8364 | toc_ref = NULL; | |
| 8365 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8366 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8367 | { |
| 8368 | Elf_Internal_Sym *locsyms = NULL; | |
| 8369 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8370 | ||
| 102890f0 AM |
8371 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8372 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8373 | { | |
| 8374 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8375 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8376 | |
| 102890f0 AM |
8377 | /* Read the relocations. */ |
| 8378 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8379 | info->keep_memory); | |
| 8380 | if (relstart == NULL) | |
| 2915c55b JK |
8381 | { |
| 8382 | free (toc_ref); | |
| 8383 | return FALSE; | |
| 8384 | } | |
| 411e1bfb | 8385 | |
| 102890f0 AM |
8386 | relend = relstart + sec->reloc_count; |
| 8387 | for (rel = relstart; rel < relend; rel++) | |
| 8388 | { | |
| 8389 | enum elf_ppc64_reloc_type r_type; | |
| 8390 | unsigned long r_symndx; | |
| 8391 | struct elf_link_hash_entry *h; | |
| 8392 | Elf_Internal_Sym *sym; | |
| 8393 | asection *sym_sec; | |
| f961d9dd AM |
8394 | unsigned char *tls_mask; |
| 8395 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8396 | bfd_vma value; |
| 8397 | bfd_boolean ok_tprel, is_local; | |
| 8398 | long toc_ref_index = 0; | |
| 8399 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8400 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8401 | |
| 102890f0 AM |
8402 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8403 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8404 | r_symndx, ibfd)) | |
| 8405 | { | |
| 8406 | err_free_rel: | |
| 8407 | if (elf_section_data (sec)->relocs != relstart) | |
| 8408 | free (relstart); | |
| 8409 | if (toc_ref != NULL) | |
| 8410 | free (toc_ref); | |
| 8411 | if (locsyms != NULL | |
| 0ffa91dd | 8412 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8413 | != (unsigned char *) locsyms)) |
| 8414 | free (locsyms); | |
| 663a1470 | 8415 | return ret; |
| 102890f0 | 8416 | } |
| 411e1bfb | 8417 | |
| 102890f0 AM |
8418 | if (h != NULL) |
| 8419 | { | |
| 766bc656 AM |
8420 | if (h->root.type == bfd_link_hash_defined |
| 8421 | || h->root.type == bfd_link_hash_defweak) | |
| 8422 | value = h->root.u.def.value; | |
| 8423 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8424 | value = 0; | |
| 8425 | else | |
| 663a1470 AM |
8426 | { |
| 8427 | found_tls_get_addr_arg = 0; | |
| 8428 | continue; | |
| 8429 | } | |
| 102890f0 AM |
8430 | } |
| 8431 | else | |
| 8432 | /* Symbols referenced by TLS relocs must be of type | |
| 8433 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8434 | value = sym->st_value; | |
| 8435 | ||
| 8436 | ok_tprel = FALSE; | |
| 8437 | is_local = FALSE; | |
| 8438 | if (h == NULL | |
| 8439 | || !h->def_dynamic) | |
| 8440 | { | |
| 8441 | is_local = TRUE; | |
| 766bc656 AM |
8442 | if (h != NULL |
| 8443 | && h->root.type == bfd_link_hash_undefweak) | |
| 8444 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8445 | else if (sym_sec != NULL |
| 8446 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8447 | { |
| 8448 | value += sym_sec->output_offset; | |
| 8449 | value += sym_sec->output_section->vma; | |
| 8450 | value -= htab->elf.tls_sec->vma; | |
| 8451 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8452 | < (bfd_vma) 1 << 32); | |
| 8453 | } | |
| 102890f0 | 8454 | } |
| 951fd09b | 8455 | |
| 102890f0 | 8456 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8457 | /* If this section has old-style __tls_get_addr calls |
| 8458 | without marker relocs, then check that each | |
| 8459 | __tls_get_addr call reloc is preceded by a reloc | |
| 8460 | that conceivably belongs to the __tls_get_addr arg | |
| 8461 | setup insn. If we don't find matching arg setup | |
| 8462 | relocs, don't do any tls optimization. */ | |
| 8463 | if (pass == 0 | |
| 8464 | && sec->has_tls_get_addr_call | |
| 8465 | && h != NULL | |
| 8466 | && (h == &htab->tls_get_addr->elf | |
| 8467 | || h == &htab->tls_get_addr_fd->elf) | |
| 8468 | && !found_tls_get_addr_arg | |
| 8469 | && is_branch_reloc (r_type)) | |
| 8470 | { | |
| 25f53a85 | 8471 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8472 | "TLS optimization disabled\n"), |
| 8473 | ibfd, sec, rel->r_offset); | |
| 8474 | ret = TRUE; | |
| 8475 | goto err_free_rel; | |
| 8476 | } | |
| 8477 | ||
| 8478 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8479 | switch (r_type) |
| 8480 | { | |
| 8481 | case R_PPC64_GOT_TLSLD16: | |
| 8482 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8483 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8484 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8485 | /* Fall through. */ |
| 102890f0 AM |
8486 | |
| 8487 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8488 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8489 | /* These relocs should never be against a symbol | |
| 8490 | defined in a shared lib. Leave them alone if | |
| 8491 | that turns out to be the case. */ | |
| 8492 | if (!is_local) | |
| 8493 | continue; | |
| 411e1bfb | 8494 | |
| 102890f0 | 8495 | /* LD -> LE */ |
| 411e1bfb | 8496 | tls_set = 0; |
| 102890f0 AM |
8497 | tls_clear = TLS_LD; |
| 8498 | tls_type = TLS_TLS | TLS_LD; | |
| 8499 | break; | |
| 411e1bfb | 8500 | |
| 102890f0 AM |
8501 | case R_PPC64_GOT_TLSGD16: |
| 8502 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8503 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8504 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8505 | /* Fall through. */ |
| 102890f0 AM |
8506 | |
| 8507 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8508 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8509 | if (ok_tprel) | |
| 8510 | /* GD -> LE */ | |
| 411e1bfb | 8511 | tls_set = 0; |
| 102890f0 AM |
8512 | else |
| 8513 | /* GD -> IE */ | |
| 8514 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8515 | tls_clear = TLS_GD; | |
| 8516 | tls_type = TLS_TLS | TLS_GD; | |
| 8517 | break; | |
| 8518 | ||
| 8519 | case R_PPC64_GOT_TPREL16_DS: | |
| 8520 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8521 | case R_PPC64_GOT_TPREL16_HI: | |
| 8522 | case R_PPC64_GOT_TPREL16_HA: | |
| 8523 | if (ok_tprel) | |
| 8524 | { | |
| 8525 | /* IE -> LE */ | |
| 8526 | tls_set = 0; | |
| 8527 | tls_clear = TLS_TPREL; | |
| 8528 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8529 | break; | |
| 8530 | } | |
| 411e1bfb AM |
8531 | continue; |
| 8532 | ||
| 727fc41e AM |
8533 | case R_PPC64_TLSGD: |
| 8534 | case R_PPC64_TLSLD: | |
| 663a1470 | 8535 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8536 | /* Fall through. */ |
| 663a1470 AM |
8537 | |
| 8538 | case R_PPC64_TLS: | |
| 8539 | case R_PPC64_TOC16: | |
| 8540 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8541 | if (sym_sec == NULL || sym_sec != toc) |
| 8542 | continue; | |
| 8543 | ||
| 8544 | /* Mark this toc entry as referenced by a TLS | |
| 8545 | code sequence. We can do that now in the | |
| 8546 | case of R_PPC64_TLS, and after checking for | |
| 8547 | tls_get_addr for the TOC16 relocs. */ | |
| 8548 | if (toc_ref == NULL) | |
| 663a1470 AM |
8549 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8550 | if (toc_ref == NULL) | |
| 8551 | goto err_free_rel; | |
| 8552 | ||
| 102890f0 AM |
8553 | if (h != NULL) |
| 8554 | value = h->root.u.def.value; | |
| 8555 | else | |
| 8556 | value = sym->st_value; | |
| 8557 | value += rel->r_addend; | |
| 73242275 AM |
8558 | if (value % 8 != 0) |
| 8559 | continue; | |
| 8560 | BFD_ASSERT (value < toc->size | |
| 8561 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8562 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8563 | if (r_type == R_PPC64_TLS |
| 8564 | || r_type == R_PPC64_TLSGD | |
| 8565 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8566 | { |
| 8567 | toc_ref[toc_ref_index] = 1; | |
| 8568 | continue; | |
| 8569 | } | |
| 8570 | ||
| 8571 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8572 | continue; | |
| 8573 | ||
| 8574 | tls_set = 0; | |
| 8575 | tls_clear = 0; | |
| 8576 | expecting_tls_get_addr = 2; | |
| 8577 | break; | |
| 8578 | ||
| 8579 | case R_PPC64_TPREL64: | |
| 8580 | if (pass == 0 | |
| 8581 | || sec != toc | |
| 8582 | || toc_ref == NULL | |
| 663a1470 | 8583 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8584 | continue; |
| 8585 | if (ok_tprel) | |
| 8586 | { | |
| 8587 | /* IE -> LE */ | |
| 8588 | tls_set = TLS_EXPLICIT; | |
| 8589 | tls_clear = TLS_TPREL; | |
| 8590 | break; | |
| 8591 | } | |
| 8592 | continue; | |
| 8593 | ||
| 8594 | case R_PPC64_DTPMOD64: | |
| 8595 | if (pass == 0 | |
| 8596 | || sec != toc | |
| 8597 | || toc_ref == NULL | |
| 663a1470 | 8598 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8599 | continue; |
| 8600 | if (rel + 1 < relend | |
| 8601 | && (rel[1].r_info | |
| 8602 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8603 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8604 | { | |
| 8605 | if (ok_tprel) | |
| 8606 | /* GD -> LE */ | |
| 8607 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8608 | else | |
| 8609 | /* GD -> IE */ | |
| 8610 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8611 | tls_clear = TLS_GD; | |
| 8612 | } | |
| 8613 | else | |
| 8614 | { | |
| 8615 | if (!is_local) | |
| 8616 | continue; | |
| 8617 | ||
| 8618 | /* LD -> LE */ | |
| 8619 | tls_set = TLS_EXPLICIT; | |
| 8620 | tls_clear = TLS_LD; | |
| 8621 | } | |
| 8622 | break; | |
| 8623 | ||
| 8624 | default: | |
| 8625 | continue; | |
| 8626 | } | |
| 8627 | ||
| 8628 | if (pass == 0) | |
| 8629 | { | |
| 727fc41e AM |
8630 | if (!expecting_tls_get_addr |
| 8631 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8632 | continue; |
| 8633 | ||
| 3a71aa26 AM |
8634 | if (rel + 1 < relend |
| 8635 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8636 | htab->tls_get_addr, | |
| 8637 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8638 | { |
| 3a71aa26 | 8639 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8640 | { |
| 3a71aa26 | 8641 | /* Check for toc tls entries. */ |
| f961d9dd | 8642 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8643 | int retval; |
| 8644 | ||
| 8645 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8646 | &locsyms, | |
| 8647 | rel, ibfd); | |
| 8648 | if (retval == 0) | |
| 8649 | goto err_free_rel; | |
| 663a1470 AM |
8650 | if (toc_tls != NULL) |
| 8651 | { | |
| 8652 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8653 | found_tls_get_addr_arg = 1; | |
| 8654 | if (retval > 1) | |
| 8655 | toc_ref[toc_ref_index] = 1; | |
| 8656 | } | |
| 102890f0 | 8657 | } |
| 3a71aa26 | 8658 | continue; |
| 102890f0 AM |
8659 | } |
| 8660 | ||
| 8661 | if (expecting_tls_get_addr != 1) | |
| 8662 | continue; | |
| 8663 | ||
| 8664 | /* Uh oh, we didn't find the expected call. We | |
| 8665 | could just mark this symbol to exclude it | |
| 8666 | from tls optimization but it's safer to skip | |
| 663a1470 | 8667 | the entire optimization. */ |
| 695344c0 | 8668 | /* xgettext:c-format */ |
| 25f53a85 | 8669 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8670 | "TLS optimization disabled\n"), |
| 8671 | ibfd, sec, rel->r_offset); | |
| 8672 | ret = TRUE; | |
| 8673 | goto err_free_rel; | |
| 102890f0 AM |
8674 | } |
| 8675 | ||
| 85f7a9cb | 8676 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8677 | { |
| 8678 | struct plt_entry *ent; | |
| 8679 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8680 | ent != NULL; | |
| 8681 | ent = ent->next) | |
| 8682 | if (ent->addend == 0) | |
| 411e1bfb | 8683 | { |
| 102890f0 | 8684 | if (ent->plt.refcount > 0) |
| 30038c59 | 8685 | { |
| 102890f0 AM |
8686 | ent->plt.refcount -= 1; |
| 8687 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8688 | } |
| 102890f0 | 8689 | break; |
| 411e1bfb | 8690 | } |
| 102890f0 | 8691 | } |
| 411e1bfb | 8692 | |
| 85f7a9cb | 8693 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8694 | { |
| 8695 | struct plt_entry *ent; | |
| 8696 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8697 | ent != NULL; | |
| 8698 | ent = ent->next) | |
| 8699 | if (ent->addend == 0) | |
| 411e1bfb | 8700 | { |
| 102890f0 AM |
8701 | if (ent->plt.refcount > 0) |
| 8702 | ent->plt.refcount -= 1; | |
| 8703 | break; | |
| 411e1bfb | 8704 | } |
| 102890f0 | 8705 | } |
| 411e1bfb | 8706 | |
| 102890f0 | 8707 | if (tls_clear == 0) |
| 30038c59 AM |
8708 | continue; |
| 8709 | ||
| 102890f0 AM |
8710 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8711 | { | |
| 8712 | struct got_entry *ent; | |
| 411e1bfb | 8713 | |
| 102890f0 AM |
8714 | /* Adjust got entry for this reloc. */ |
| 8715 | if (h != NULL) | |
| 8716 | ent = h->got.glist; | |
| 8717 | else | |
| 8718 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8719 | |
| 102890f0 AM |
8720 | for (; ent != NULL; ent = ent->next) |
| 8721 | if (ent->addend == rel->r_addend | |
| 8722 | && ent->owner == ibfd | |
| 8723 | && ent->tls_type == tls_type) | |
| 8724 | break; | |
| 8725 | if (ent == NULL) | |
| 8726 | abort (); | |
| 411e1bfb | 8727 | |
| 102890f0 AM |
8728 | if (tls_set == 0) |
| 8729 | { | |
| 8730 | /* We managed to get rid of a got entry. */ | |
| 8731 | if (ent->got.refcount > 0) | |
| 8732 | ent->got.refcount -= 1; | |
| 8733 | } | |
| 8734 | } | |
| 8735 | else | |
| 8736 | { | |
| 8737 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8738 | we'll lose one or two dyn relocs. */ | |
| 8739 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8740 | NULL, h, sym)) |
| 102890f0 | 8741 | return FALSE; |
| 411e1bfb | 8742 | |
| 102890f0 AM |
8743 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8744 | { | |
| 8745 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8746 | NULL, h, sym)) |
| 102890f0 AM |
8747 | return FALSE; |
| 8748 | } | |
| 8749 | } | |
| 411e1bfb | 8750 | |
| 102890f0 AM |
8751 | *tls_mask |= tls_set; |
| 8752 | *tls_mask &= ~tls_clear; | |
| 8753 | } | |
| 8c1d1bb8 | 8754 | |
| 102890f0 AM |
8755 | if (elf_section_data (sec)->relocs != relstart) |
| 8756 | free (relstart); | |
| 8757 | } | |
| 411e1bfb | 8758 | |
| 663a1470 AM |
8759 | if (locsyms != NULL |
| 8760 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8761 | { | |
| 8762 | if (!info->keep_memory) | |
| 8763 | free (locsyms); | |
| 8764 | else | |
| 8765 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8766 | } | |
| 8767 | } | |
| 411e1bfb | 8768 | |
| 663a1470 AM |
8769 | if (toc_ref != NULL) |
| 8770 | free (toc_ref); | |
| 9a23f96e | 8771 | htab->do_tls_opt = 1; |
| b34976b6 | 8772 | return TRUE; |
| 1e2f5b6e | 8773 | } |
| b34976b6 | 8774 | |
| c5614fa4 AM |
8775 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8776 | the values of any global symbols in a toc section that has been | |
| 8777 | edited. Globals in toc sections should be a rarity, so this function | |
| 8778 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 8779 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
8780 | |
| 8781 | struct adjust_toc_info | |
| 8782 | { | |
| 8783 | asection *toc; | |
| 8784 | unsigned long *skip; | |
| 8785 | bfd_boolean global_toc_syms; | |
| 8786 | }; | |
| 8787 | ||
| ba761f19 AM |
8788 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8789 | ||
| c5614fa4 AM |
8790 | static bfd_boolean |
| 8791 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8792 | { | |
| 8793 | struct ppc_link_hash_entry *eh; | |
| 8794 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8795 | unsigned long i; |
| c5614fa4 | 8796 | |
| c5614fa4 AM |
8797 | if (h->root.type != bfd_link_hash_defined |
| 8798 | && h->root.type != bfd_link_hash_defweak) | |
| 8799 | return TRUE; | |
| 8800 | ||
| 8801 | eh = (struct ppc_link_hash_entry *) h; | |
| 8802 | if (eh->adjust_done) | |
| 8803 | return TRUE; | |
| 8804 | ||
| 8805 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8806 | { | |
| 854b41e7 AM |
8807 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8808 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8809 | else |
| 854b41e7 AM |
8810 | i = eh->elf.root.u.def.value >> 3; |
| 8811 | ||
| ba761f19 | 8812 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8813 | { |
| 4eca0228 | 8814 | _bfd_error_handler |
| 854b41e7 AM |
8815 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8816 | do | |
| 8817 | ++i; | |
| ba761f19 | 8818 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8819 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8820 | } |
| 854b41e7 AM |
8821 | |
| 8822 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8823 | eh->adjust_done = 1; |
| 8824 | } | |
| 8825 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8826 | toc_inf->global_toc_syms = TRUE; | |
| 8827 | ||
| 8828 | return TRUE; | |
| 8829 | } | |
| 8830 | ||
| 39eeab25 AM |
8831 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8832 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8833 | |
| 8834 | static bfd_boolean | |
| 39eeab25 | 8835 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8836 | { |
| 39eeab25 AM |
8837 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8838 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8839 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8840 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8841 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8842 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8843 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8844 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8845 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8846 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8847 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8848 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8849 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8850 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8851 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8852 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8853 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8854 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8855 | defined for the reduced D field in psq_lu then those | |
| 8856 | will need testing too. */ | |
| 8857 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8858 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8859 | && (insn & 1) == 0) | |
| 8860 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8861 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8862 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8863 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8864 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8865 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8866 | } |
| 8867 | ||
| c5614fa4 AM |
8868 | /* Examine all relocs referencing .toc sections in order to remove |
| 8869 | unused .toc entries. */ | |
| 8870 | ||
| 8871 | bfd_boolean | |
| 33c0ec9d | 8872 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8873 | { |
| 8874 | bfd *ibfd; | |
| 8875 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8876 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8877 | |
| 67f0cbdb | 8878 | htab->do_toc_opt = 1; |
| c5614fa4 | 8879 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8880 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8881 | { |
| 8882 | asection *toc, *sec; | |
| 8883 | Elf_Internal_Shdr *symtab_hdr; | |
| 8884 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8885 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8886 | unsigned long *skip, *drop; |
| 8887 | unsigned char *used; | |
| 8888 | unsigned char *keep, last, some_unused; | |
| 8889 | ||
| 854b41e7 AM |
8890 | if (!is_ppc64_elf (ibfd)) |
| 8891 | continue; | |
| 8892 | ||
| c5614fa4 AM |
8893 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8894 | if (toc == NULL | |
| 92b7a70f | 8895 | || toc->size == 0 |
| dbaa2011 AM |
8896 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8897 | || discarded_section (toc)) | |
| c5614fa4 AM |
8898 | continue; |
| 8899 | ||
| 425b145b | 8900 | toc_relocs = NULL; |
| c5614fa4 | 8901 | local_syms = NULL; |
| 0ffa91dd | 8902 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8903 | |
| 8904 | /* Look at sections dropped from the final link. */ | |
| 8905 | skip = NULL; | |
| 8906 | relstart = NULL; | |
| 8907 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8908 | { | |
| 8909 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8910 | || !discarded_section (sec) |
| c5614fa4 AM |
8911 | || get_opd_info (sec) |
| 8912 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8913 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8914 | continue; | |
| 8915 | ||
| 8916 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8917 | if (relstart == NULL) | |
| 8918 | goto error_ret; | |
| 8919 | ||
| 8920 | /* Run through the relocs to see which toc entries might be | |
| 8921 | unused. */ | |
| 8922 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8923 | { | |
| 8924 | enum elf_ppc64_reloc_type r_type; | |
| 8925 | unsigned long r_symndx; | |
| 8926 | asection *sym_sec; | |
| 8927 | struct elf_link_hash_entry *h; | |
| 8928 | Elf_Internal_Sym *sym; | |
| 8929 | bfd_vma val; | |
| 8930 | ||
| 8931 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8932 | switch (r_type) | |
| 8933 | { | |
| 8934 | default: | |
| 8935 | continue; | |
| 8936 | ||
| 8937 | case R_PPC64_TOC16: | |
| 8938 | case R_PPC64_TOC16_LO: | |
| 8939 | case R_PPC64_TOC16_HI: | |
| 8940 | case R_PPC64_TOC16_HA: | |
| 8941 | case R_PPC64_TOC16_DS: | |
| 8942 | case R_PPC64_TOC16_LO_DS: | |
| 8943 | break; | |
| 8944 | } | |
| 8945 | ||
| 8946 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8947 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8948 | r_symndx, ibfd)) | |
| 8949 | goto error_ret; | |
| 8950 | ||
| 8951 | if (sym_sec != toc) | |
| 8952 | continue; | |
| 8953 | ||
| 8954 | if (h != NULL) | |
| 8955 | val = h->root.u.def.value; | |
| 8956 | else | |
| 8957 | val = sym->st_value; | |
| 8958 | val += rel->r_addend; | |
| 8959 | ||
| 8960 | if (val >= toc->size) | |
| 8961 | continue; | |
| 8962 | ||
| 8963 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8964 | If not, don't mark as unused. */ | |
| 8965 | if (val & 7) | |
| 8966 | continue; | |
| 8967 | ||
| 8968 | if (skip == NULL) | |
| 8969 | { | |
| 854b41e7 | 8970 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8971 | if (skip == NULL) |
| 8972 | goto error_ret; | |
| 8973 | } | |
| 8974 | ||
| ba761f19 | 8975 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8976 | } |
| 8977 | ||
| 8978 | if (elf_section_data (sec)->relocs != relstart) | |
| 8979 | free (relstart); | |
| 8980 | } | |
| 8981 | ||
| ba761f19 AM |
8982 | /* For largetoc loads of address constants, we can convert |
| 8983 | . addis rx,2,addr@got@ha | |
| 8984 | . ld ry,addr@got@l(rx) | |
| 8985 | to | |
| 8986 | . addis rx,2,addr@toc@ha | |
| 8987 | . addi ry,rx,addr@toc@l | |
| 8988 | when addr is within 2G of the toc pointer. This then means | |
| 8989 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8990 | |
| ba761f19 AM |
8991 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8992 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8993 | && toc->reloc_count != 0) | |
| 8994 | { | |
| 8995 | /* Read toc relocs. */ | |
| 425b145b AM |
8996 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8997 | info->keep_memory); | |
| 8998 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8999 | goto error_ret; |
| 9000 | ||
| 425b145b | 9001 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9002 | { |
| 9003 | enum elf_ppc64_reloc_type r_type; | |
| 9004 | unsigned long r_symndx; | |
| 9005 | asection *sym_sec; | |
| 9006 | struct elf_link_hash_entry *h; | |
| 9007 | Elf_Internal_Sym *sym; | |
| 9008 | bfd_vma val, addr; | |
| 9009 | ||
| 9010 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9011 | if (r_type != R_PPC64_ADDR64) | |
| 9012 | continue; | |
| 9013 | ||
| 9014 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9015 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9016 | r_symndx, ibfd)) | |
| 9017 | goto error_ret; | |
| 9018 | ||
| 425b145b | 9019 | if (sym_sec == NULL |
| c27b8c2a | 9020 | || sym_sec->output_section == NULL |
| dbaa2011 | 9021 | || discarded_section (sym_sec)) |
| 425b145b AM |
9022 | continue; |
| 9023 | ||
| afe397ea | 9024 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9025 | continue; |
| 9026 | ||
| 9027 | if (h != NULL) | |
| bddc25c9 AM |
9028 | { |
| 9029 | if (h->type == STT_GNU_IFUNC) | |
| 9030 | continue; | |
| 9031 | val = h->root.u.def.value; | |
| 9032 | } | |
| ba761f19 | 9033 | else |
| bddc25c9 AM |
9034 | { |
| 9035 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9036 | continue; | |
| 9037 | val = sym->st_value; | |
| 9038 | } | |
| ba761f19 AM |
9039 | val += rel->r_addend; |
| 9040 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9041 | ||
| 9042 | /* We don't yet know the exact toc pointer value, but we | |
| 9043 | know it will be somewhere in the toc section. Don't | |
| 9044 | optimize if the difference from any possible toc | |
| 9045 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9046 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9047 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9048 | continue; | |
| 9049 | ||
| 9050 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9051 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9052 | continue; | |
| 9053 | ||
| 9054 | if (skip == NULL) | |
| 9055 | { | |
| 9056 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9057 | if (skip == NULL) | |
| 9058 | goto error_ret; | |
| 9059 | } | |
| 9060 | ||
| 9061 | skip[rel->r_offset >> 3] | |
| 425b145b | 9062 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9063 | } |
| ba761f19 AM |
9064 | } |
| 9065 | ||
| c5614fa4 AM |
9066 | if (skip == NULL) |
| 9067 | continue; | |
| 9068 | ||
| 9069 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9070 | if (used == NULL) | |
| 9071 | { | |
| 9072 | error_ret: | |
| 9073 | if (local_syms != NULL | |
| 9074 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9075 | free (local_syms); | |
| 9076 | if (sec != NULL | |
| 9077 | && relstart != NULL | |
| 9078 | && elf_section_data (sec)->relocs != relstart) | |
| 9079 | free (relstart); | |
| 425b145b AM |
9080 | if (toc_relocs != NULL |
| 9081 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9082 | free (toc_relocs); | |
| c5614fa4 AM |
9083 | if (skip != NULL) |
| 9084 | free (skip); | |
| 9085 | return FALSE; | |
| 9086 | } | |
| 9087 | ||
| 30038c59 AM |
9088 | /* Now check all kept sections that might reference the toc. |
| 9089 | Check the toc itself last. */ | |
| 9090 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9091 | : ibfd->sections); | |
| c5614fa4 | 9092 | sec != NULL; |
| c5614fa4 | 9093 | sec = (sec == toc ? NULL |
| c5614fa4 | 9094 | : sec->next == NULL ? toc |
| 30038c59 | 9095 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9096 | : sec->next)) |
| 9097 | { | |
| 9098 | int repeat; | |
| 9099 | ||
| 9100 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9101 | || discarded_section (sec) |
| c5614fa4 AM |
9102 | || get_opd_info (sec) |
| 9103 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9104 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9105 | continue; | |
| 9106 | ||
| 854b41e7 AM |
9107 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9108 | info->keep_memory); | |
| c5614fa4 | 9109 | if (relstart == NULL) |
| 2915c55b JK |
9110 | { |
| 9111 | free (used); | |
| 9112 | goto error_ret; | |
| 9113 | } | |
| c5614fa4 AM |
9114 | |
| 9115 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9116 | do |
| d4f1ee75 AM |
9117 | { |
| 9118 | repeat = 0; | |
| 9119 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9120 | { | |
| 9121 | enum elf_ppc64_reloc_type r_type; | |
| 9122 | unsigned long r_symndx; | |
| 9123 | asection *sym_sec; | |
| 9124 | struct elf_link_hash_entry *h; | |
| 9125 | Elf_Internal_Sym *sym; | |
| 9126 | bfd_vma val; | |
| 9127 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9128 | |
| d4f1ee75 AM |
9129 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9130 | switch (r_type) | |
| 9131 | { | |
| 9132 | default: | |
| 9133 | insn_check = no_check; | |
| 9134 | break; | |
| 98528052 | 9135 | |
| d4f1ee75 AM |
9136 | case R_PPC64_GOT_TLSLD16_HA: |
| 9137 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9138 | case R_PPC64_GOT_TPREL16_HA: | |
| 9139 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9140 | case R_PPC64_GOT16_HA: | |
| 9141 | case R_PPC64_TOC16_HA: | |
| 9142 | insn_check = check_ha; | |
| 9143 | break; | |
| 98528052 | 9144 | |
| d4f1ee75 AM |
9145 | case R_PPC64_GOT_TLSLD16_LO: |
| 9146 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9147 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9148 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9149 | case R_PPC64_GOT16_LO: | |
| 9150 | case R_PPC64_GOT16_LO_DS: | |
| 9151 | case R_PPC64_TOC16_LO: | |
| 9152 | case R_PPC64_TOC16_LO_DS: | |
| 9153 | insn_check = check_lo; | |
| 9154 | break; | |
| 9155 | } | |
| 560c8763 | 9156 | |
| d4f1ee75 AM |
9157 | if (insn_check != no_check) |
| 9158 | { | |
| 9159 | bfd_vma off = rel->r_offset & ~3; | |
| 9160 | unsigned char buf[4]; | |
| 9161 | unsigned int insn; | |
| c5614fa4 | 9162 | |
| d4f1ee75 AM |
9163 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9164 | { | |
| 9165 | free (used); | |
| 9166 | goto error_ret; | |
| 9167 | } | |
| 9168 | insn = bfd_get_32 (ibfd, buf); | |
| 9169 | if (insn_check == check_lo | |
| 39eeab25 | 9170 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9171 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9172 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9173 | { | |
| 9174 | char str[12]; | |
| 9175 | ||
| 9176 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9177 | sprintf (str, "%#08x", insn); | |
| 9178 | info->callbacks->einfo | |
| 695344c0 | 9179 | /* xgettext:c-format */ |
| 174d0a74 | 9180 | (_("%H: toc optimization is not supported for" |
| d4f1ee75 AM |
9181 | " %s instruction.\n"), |
| 9182 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9183 | } | |
| 9184 | } | |
| c5614fa4 | 9185 | |
| d4f1ee75 AM |
9186 | switch (r_type) |
| 9187 | { | |
| 9188 | case R_PPC64_TOC16: | |
| 9189 | case R_PPC64_TOC16_LO: | |
| 9190 | case R_PPC64_TOC16_HI: | |
| 9191 | case R_PPC64_TOC16_HA: | |
| 9192 | case R_PPC64_TOC16_DS: | |
| 9193 | case R_PPC64_TOC16_LO_DS: | |
| 9194 | /* In case we're taking addresses of toc entries. */ | |
| 9195 | case R_PPC64_ADDR64: | |
| 9196 | break; | |
| c5614fa4 | 9197 | |
| d4f1ee75 AM |
9198 | default: |
| 9199 | continue; | |
| 9200 | } | |
| c5614fa4 | 9201 | |
| d4f1ee75 AM |
9202 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9203 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9204 | r_symndx, ibfd)) | |
| 9205 | { | |
| 9206 | free (used); | |
| 9207 | goto error_ret; | |
| 9208 | } | |
| c5614fa4 | 9209 | |
| d4f1ee75 AM |
9210 | if (sym_sec != toc) |
| 9211 | continue; | |
| c5614fa4 | 9212 | |
| d4f1ee75 AM |
9213 | if (h != NULL) |
| 9214 | val = h->root.u.def.value; | |
| 9215 | else | |
| 9216 | val = sym->st_value; | |
| 9217 | val += rel->r_addend; | |
| ba761f19 | 9218 | |
| d4f1ee75 AM |
9219 | if (val >= toc->size) |
| 9220 | continue; | |
| ba761f19 | 9221 | |
| d4f1ee75 AM |
9222 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9223 | { | |
| 9224 | bfd_vma off; | |
| 9225 | unsigned char opc; | |
| 9226 | ||
| 9227 | switch (r_type) | |
| 9228 | { | |
| 9229 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9230 | break; |
| ba761f19 | 9231 | |
| d4f1ee75 AM |
9232 | case R_PPC64_TOC16_LO_DS: |
| 9233 | off = rel->r_offset; | |
| 9234 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9235 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9236 | off, 1)) | |
| 9237 | { | |
| 9238 | free (used); | |
| 9239 | goto error_ret; | |
| 9240 | } | |
| 9241 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9242 | break; | |
| 1a0670f3 | 9243 | /* Fall through. */ |
| ba761f19 | 9244 | |
| d4f1ee75 AM |
9245 | default: |
| 9246 | /* Wrong sort of reloc, or not a ld. We may | |
| 9247 | as well clear ref_from_discarded too. */ | |
| 9248 | skip[val >> 3] = 0; | |
| 9249 | } | |
| 9250 | } | |
| 9251 | ||
| 9252 | if (sec != toc) | |
| 9253 | used[val >> 3] = 1; | |
| 9254 | /* For the toc section, we only mark as used if this | |
| 9255 | entry itself isn't unused. */ | |
| 9256 | else if ((used[rel->r_offset >> 3] | |
| 9257 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9258 | && !used[val >> 3]) | |
| 9259 | { | |
| 9260 | /* Do all the relocs again, to catch reference | |
| 9261 | chains. */ | |
| 9262 | repeat = 1; | |
| 9263 | used[val >> 3] = 1; | |
| 9264 | } | |
| 9265 | } | |
| 9266 | } | |
| c5614fa4 | 9267 | while (repeat); |
| 854b41e7 AM |
9268 | |
| 9269 | if (elf_section_data (sec)->relocs != relstart) | |
| 9270 | free (relstart); | |
| c5614fa4 AM |
9271 | } |
| 9272 | ||
| 9273 | /* Merge the used and skip arrays. Assume that TOC | |
| 9274 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9275 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9276 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9277 | drop < skip + (toc->size + 7) / 8; | |
| 9278 | ++drop, ++keep) | |
| 9279 | { | |
| 9280 | if (*keep) | |
| 9281 | { | |
| ba761f19 AM |
9282 | *drop &= ~ref_from_discarded; |
| 9283 | if ((*drop & can_optimize) != 0) | |
| 9284 | some_unused = 1; | |
| c5614fa4 AM |
9285 | last = 0; |
| 9286 | } | |
| b140b010 | 9287 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9288 | { |
| 9289 | some_unused = 1; | |
| ba761f19 | 9290 | last = ref_from_discarded; |
| c5614fa4 AM |
9291 | } |
| 9292 | else | |
| 9293 | *drop = last; | |
| 9294 | } | |
| 9295 | ||
| 9296 | free (used); | |
| 9297 | ||
| 9298 | if (some_unused) | |
| 9299 | { | |
| 9300 | bfd_byte *contents, *src; | |
| 9301 | unsigned long off; | |
| d62b3684 | 9302 | Elf_Internal_Sym *sym; |
| ba761f19 | 9303 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9304 | |
| 9305 | /* Shuffle the toc contents, and at the same time convert the | |
| 9306 | skip array from booleans into offsets. */ | |
| 9307 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9308 | goto error_ret; | |
| 9309 | ||
| 9310 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9311 | ||
| 9312 | for (src = contents, off = 0, drop = skip; | |
| 9313 | src < contents + toc->size; | |
| 9314 | src += 8, ++drop) | |
| 9315 | { | |
| ba761f19 AM |
9316 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9317 | off += 8; | |
| c5614fa4 AM |
9318 | else if (off != 0) |
| 9319 | { | |
| 9320 | *drop = off; | |
| 9321 | memcpy (src - off, src, 8); | |
| 9322 | } | |
| 9323 | } | |
| 854b41e7 | 9324 | *drop = off; |
| c5614fa4 AM |
9325 | toc->rawsize = toc->size; |
| 9326 | toc->size = src - contents - off; | |
| 9327 | ||
| ba761f19 AM |
9328 | /* Adjust addends for relocs against the toc section sym, |
| 9329 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9330 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9331 | { | |
| 9332 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9333 | || discarded_section (sec)) |
| c5614fa4 AM |
9334 | continue; |
| 9335 | ||
| 9336 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9337 | info->keep_memory); |
| c5614fa4 AM |
9338 | if (relstart == NULL) |
| 9339 | goto error_ret; | |
| 9340 | ||
| 9341 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9342 | { | |
| 9343 | enum elf_ppc64_reloc_type r_type; | |
| 9344 | unsigned long r_symndx; | |
| 9345 | asection *sym_sec; | |
| 9346 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9347 | bfd_vma val; |
| c5614fa4 AM |
9348 | |
| 9349 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9350 | switch (r_type) | |
| 9351 | { | |
| 9352 | default: | |
| 9353 | continue; | |
| 9354 | ||
| 9355 | case R_PPC64_TOC16: | |
| 9356 | case R_PPC64_TOC16_LO: | |
| 9357 | case R_PPC64_TOC16_HI: | |
| 9358 | case R_PPC64_TOC16_HA: | |
| 9359 | case R_PPC64_TOC16_DS: | |
| 9360 | case R_PPC64_TOC16_LO_DS: | |
| 9361 | case R_PPC64_ADDR64: | |
| 9362 | break; | |
| 9363 | } | |
| 9364 | ||
| 9365 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9366 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9367 | r_symndx, ibfd)) | |
| 9368 | goto error_ret; | |
| 9369 | ||
| ba761f19 | 9370 | if (sym_sec != toc) |
| c5614fa4 AM |
9371 | continue; |
| 9372 | ||
| ba761f19 AM |
9373 | if (h != NULL) |
| 9374 | val = h->root.u.def.value; | |
| 9375 | else | |
| 9376 | { | |
| 9377 | val = sym->st_value; | |
| 9378 | if (val != 0) | |
| 9379 | local_toc_syms = TRUE; | |
| 9380 | } | |
| 9381 | ||
| 9382 | val += rel->r_addend; | |
| 854b41e7 AM |
9383 | |
| 9384 | if (val > toc->rawsize) | |
| 9385 | val = toc->rawsize; | |
| ba761f19 AM |
9386 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9387 | continue; | |
| 9388 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9389 | { | |
| 9390 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9391 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9392 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9393 | ||
| 9394 | switch (r_type) | |
| 9395 | { | |
| 9396 | case R_PPC64_TOC16_HA: | |
| 9397 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9398 | break; | |
| 9399 | ||
| 9400 | case R_PPC64_TOC16_LO_DS: | |
| 9401 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9402 | break; | |
| 9403 | ||
| 9404 | default: | |
| 28942f62 AM |
9405 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9406 | ppc_howto_init (); | |
| b140b010 | 9407 | info->callbacks->einfo |
| 695344c0 | 9408 | /* xgettext:c-format */ |
| 174d0a74 | 9409 | (_("%H: %s references " |
| b140b010 AM |
9410 | "optimized away TOC entry\n"), |
| 9411 | ibfd, sec, rel->r_offset, | |
| 9412 | ppc64_elf_howto_table[r_type]->name); | |
| 9413 | bfd_set_error (bfd_error_bad_value); | |
| 9414 | goto error_ret; | |
| ba761f19 AM |
9415 | } |
| 9416 | rel->r_addend = tocrel->r_addend; | |
| 9417 | elf_section_data (sec)->relocs = relstart; | |
| 9418 | continue; | |
| 9419 | } | |
| 9420 | ||
| 9421 | if (h != NULL || sym->st_value != 0) | |
| 9422 | continue; | |
| 854b41e7 AM |
9423 | |
| 9424 | rel->r_addend -= skip[val >> 3]; | |
| 9425 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9426 | } |
| 854b41e7 AM |
9427 | |
| 9428 | if (elf_section_data (sec)->relocs != relstart) | |
| 9429 | free (relstart); | |
| c5614fa4 AM |
9430 | } |
| 9431 | ||
| 9432 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9433 | but handle them anyway. */ | |
| df22d223 AM |
9434 | if (local_syms != NULL) |
| 9435 | for (sym = local_syms; | |
| 9436 | sym < local_syms + symtab_hdr->sh_info; | |
| 9437 | ++sym) | |
| 9438 | if (sym->st_value != 0 | |
| 9439 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9440 | { | |
| 9441 | unsigned long i; | |
| 854b41e7 | 9442 | |
| df22d223 AM |
9443 | if (sym->st_value > toc->rawsize) |
| 9444 | i = toc->rawsize >> 3; | |
| 9445 | else | |
| 9446 | i = sym->st_value >> 3; | |
| 854b41e7 | 9447 | |
| df22d223 AM |
9448 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9449 | { | |
| 9450 | if (local_toc_syms) | |
| 4eca0228 | 9451 | _bfd_error_handler |
| df22d223 AM |
9452 | (_("%s defined on removed toc entry"), |
| 9453 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9454 | do | |
| 9455 | ++i; | |
| 9456 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9457 | sym->st_value = (bfd_vma) i << 3; | |
| 9458 | } | |
| d62b3684 | 9459 | |
| df22d223 AM |
9460 | sym->st_value -= skip[i]; |
| 9461 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9462 | } | |
| c5614fa4 | 9463 | |
| 854b41e7 | 9464 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9465 | if (toc_inf.global_toc_syms) |
| 9466 | { | |
| 9467 | toc_inf.toc = toc; | |
| 9468 | toc_inf.skip = skip; | |
| 9469 | toc_inf.global_toc_syms = FALSE; | |
| 9470 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9471 | &toc_inf); | |
| 9472 | } | |
| 854b41e7 AM |
9473 | |
| 9474 | if (toc->reloc_count != 0) | |
| 9475 | { | |
| d4730f92 | 9476 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9477 | Elf_Internal_Rela *wrel; |
| 9478 | bfd_size_type sz; | |
| 9479 | ||
| 854b41e7 | 9480 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9481 | if (toc_relocs == NULL) |
| 9482 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9483 | info->keep_memory); | |
| 9484 | if (toc_relocs == NULL) | |
| 9485 | goto error_ret; | |
| 9486 | ||
| 425b145b AM |
9487 | wrel = toc_relocs; |
| 9488 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9489 | if ((skip[rel->r_offset >> 3] |
| 9490 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9491 | { |
| 9492 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9493 | wrel->r_info = rel->r_info; | |
| 9494 | wrel->r_addend = rel->r_addend; | |
| 9495 | ++wrel; | |
| 9496 | } | |
| 9497 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9498 | &local_syms, NULL, NULL)) | |
| 9499 | goto error_ret; | |
| 9500 | ||
| 425b145b AM |
9501 | elf_section_data (toc)->relocs = toc_relocs; |
| 9502 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9503 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9504 | sz = rel_hdr->sh_entsize; | |
| 9505 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9506 | } |
| c5614fa4 | 9507 | } |
| 28be611c AM |
9508 | else if (toc_relocs != NULL |
| 9509 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9510 | free (toc_relocs); |
| c5614fa4 AM |
9511 | |
| 9512 | if (local_syms != NULL | |
| 9513 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9514 | { | |
| 9515 | if (!info->keep_memory) | |
| 9516 | free (local_syms); | |
| 9517 | else | |
| 9518 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9519 | } | |
| 9520 | free (skip); | |
| 9521 | } | |
| 9522 | ||
| 9523 | return TRUE; | |
| 9524 | } | |
| 9525 | ||
| 1bbe0902 AM |
9526 | /* Return true iff input section I references the TOC using |
| 9527 | instructions limited to +/-32k offsets. */ | |
| 9528 | ||
| 9529 | bfd_boolean | |
| 9530 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9531 | { | |
| 9532 | return (is_ppc64_elf (i->owner) | |
| 9533 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9534 | } | |
| 9535 | ||
| 927be08e AM |
9536 | /* Allocate space for one GOT entry. */ |
| 9537 | ||
| 9538 | static void | |
| 9539 | allocate_got (struct elf_link_hash_entry *h, | |
| 9540 | struct bfd_link_info *info, | |
| 9541 | struct got_entry *gent) | |
| 9542 | { | |
| 9543 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9544 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9545 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9546 | ? 16 : 8); | |
| 9547 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9548 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9549 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9550 | ||
| 9551 | gent->got.offset = got->size; | |
| 9552 | got->size += entsize; | |
| 9553 | ||
| 19e08130 | 9554 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9555 | { |
| 33e44f2e | 9556 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9557 | htab->got_reli_size += rentsize; |
| 927be08e | 9558 | } |
| f15d0b54 AM |
9559 | else if (((bfd_link_pic (info) |
| 9560 | && !((gent->tls_type & TLS_TPREL) != 0 | |
| 9561 | && bfd_link_executable (info) | |
| 9562 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
| f0158f44 AM |
9563 | || (htab->elf.dynamic_sections_created |
| 9564 | && h->dynindx != -1 | |
| 9565 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9566 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9567 | { |
| 19e08130 | 9568 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9569 | relgot->size += rentsize; |
| 927be08e AM |
9570 | } |
| 9571 | } | |
| 9572 | ||
| 7865406b AM |
9573 | /* This function merges got entries in the same toc group. */ |
| 9574 | ||
| 9575 | static void | |
| 9576 | merge_got_entries (struct got_entry **pent) | |
| 9577 | { | |
| 9578 | struct got_entry *ent, *ent2; | |
| 9579 | ||
| 9580 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9581 | if (!ent->is_indirect) | |
| 9582 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9583 | if (!ent2->is_indirect | |
| 9584 | && ent2->addend == ent->addend | |
| 9585 | && ent2->tls_type == ent->tls_type | |
| 9586 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9587 | { | |
| 9588 | ent2->is_indirect = TRUE; | |
| 9589 | ent2->got.ent = ent; | |
| 9590 | } | |
| 9591 | } | |
| 9592 | ||
| 46434633 | 9593 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9594 | |
| 9595 | static bfd_boolean | |
| 46434633 AM |
9596 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9597 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9598 | { |
| 9599 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9600 | ||
| 9601 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9602 | && ((info->dynamic_undefined_weak != 0 |
| 9603 | && h->root.type == bfd_link_hash_undefweak) | |
| 9604 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9605 | && h->dynindx == -1 |
| 9606 | && !h->forced_local | |
| 9607 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9608 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9609 | return TRUE; | |
| 9610 | } | |
| 9611 | ||
| 65f38f15 AM |
9612 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9613 | dynamic relocs. */ | |
| 5bd4f169 | 9614 | |
| b34976b6 | 9615 | static bfd_boolean |
| 4ce794b7 | 9616 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9617 | { |
| 65f38f15 AM |
9618 | struct bfd_link_info *info; |
| 9619 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9620 | asection *s; |
| 65f38f15 | 9621 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9622 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9623 | |
| e92d460e | 9624 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9625 | return TRUE; |
| 5bd4f169 | 9626 | |
| 65f38f15 AM |
9627 | info = (struct bfd_link_info *) inf; |
| 9628 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9629 | if (htab == NULL) |
| 9630 | return FALSE; | |
| 5bd4f169 | 9631 | |
| 951fd09b AM |
9632 | eh = (struct ppc_link_hash_entry *) h; |
| 9633 | /* Run through the TLS GD got entries first if we're changing them | |
| 9634 | to TPREL. */ | |
| e7b938ca | 9635 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9636 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9637 | if (gent->got.refcount > 0 | |
| 9638 | && (gent->tls_type & TLS_GD) != 0) | |
| 9639 | { | |
| 9640 | /* This was a GD entry that has been converted to TPREL. If | |
| 9641 | there happens to be a TPREL entry we can use that one. */ | |
| 9642 | struct got_entry *ent; | |
| 9643 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9644 | if (ent->got.refcount > 0 | |
| 9645 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9646 | && ent->addend == gent->addend |
| 9647 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9648 | { |
| 9649 | gent->got.refcount = 0; | |
| 9650 | break; | |
| 9651 | } | |
| 9652 | ||
| 9653 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9654 | if (gent->got.refcount != 0) | |
| 9655 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9656 | } | |
| 9657 | ||
| 7865406b AM |
9658 | /* Remove any list entry that won't generate a word in the GOT before |
| 9659 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9660 | entries. */ | |
| 0b8bcf0d AM |
9661 | pgent = &h->got.glist; |
| 9662 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9663 | if (gent->got.refcount > 0) |
| 7865406b AM |
9664 | { |
| 9665 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9666 | && !h->def_dynamic) | |
| 9667 | { | |
| 9668 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9669 | *pgent = gent->next; | |
| 9670 | } | |
| 9671 | else | |
| 9672 | pgent = &gent->next; | |
| 9673 | } | |
| 9674 | else | |
| 9675 | *pgent = gent->next; | |
| 9676 | ||
| 9677 | if (!htab->do_multi_toc) | |
| 9678 | merge_got_entries (&h->got.glist); | |
| 9679 | ||
| 9680 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9681 | if (!gent->is_indirect) | |
| 411e1bfb | 9682 | { |
| 46434633 AM |
9683 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9684 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9685 | return FALSE; |
| 65f38f15 | 9686 | |
| 0c8d6e5c | 9687 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9688 | abort (); |
| 0ffa91dd | 9689 | |
| 927be08e | 9690 | allocate_got (h, info, gent); |
| 411e1bfb | 9691 | } |
| 65f38f15 | 9692 | |
| 954b63d4 AM |
9693 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9694 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9695 | if (!htab->elf.dynamic_sections_created |
| 9696 | && h->type != STT_GNU_IFUNC) | |
| 9697 | eh->dyn_relocs = NULL; | |
| 9698 | ||
| 529fe20e AM |
9699 | /* Discard relocs on undefined symbols that must be local. */ |
| 9700 | else if (h->root.type == bfd_link_hash_undefined | |
| 9701 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9702 | eh->dyn_relocs = NULL; | |
| 9703 | ||
| 954b63d4 AM |
9704 | /* Also discard relocs on undefined weak syms with non-default |
| 9705 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 9706 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
9707 | eh->dyn_relocs = NULL; |
| 9708 | ||
| 8a2058b5 | 9709 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 9710 | { |
| 8a2058b5 AM |
9711 | struct elf_dyn_relocs *p, **pp; |
| 9712 | ||
| 57e7d118 AM |
9713 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9714 | dynamic pc-relative relocs against symbols which turn out to | |
| 9715 | be defined in regular objects. For the normal shared case, | |
| 9716 | discard space for relocs that have become local due to symbol | |
| 9717 | visibility changes. */ | |
| 9718 | ||
| 9719 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9720 | { |
| 57e7d118 AM |
9721 | /* Relocs that use pc_count are those that appear on a call |
| 9722 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9723 | can be generated via assembly. We want calls to | |
| 9724 | protected symbols to resolve directly to the function | |
| 9725 | rather than going via the plt. If people want function | |
| 9726 | pointer comparisons to work as expected then they should | |
| 9727 | avoid writing weird assembly. */ | |
| 9728 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9729 | { | |
| 57e7d118 AM |
9730 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9731 | { | |
| 9732 | p->count -= p->pc_count; | |
| 9733 | p->pc_count = 0; | |
| 9734 | if (p->count == 0) | |
| 9735 | *pp = p->next; | |
| 9736 | else | |
| 9737 | pp = &p->next; | |
| 9738 | } | |
| 9739 | } | |
| 65f38f15 | 9740 | |
| 954b63d4 | 9741 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 9742 | { |
| 46434633 AM |
9743 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9744 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9745 | return FALSE; |
| 5bd4f169 | 9746 | } |
| 65f38f15 | 9747 | } |
| 529fe20e | 9748 | else if (ELIMINATE_COPY_RELOCS && h->type != STT_GNU_IFUNC) |
| 57e7d118 | 9749 | { |
| 8a2058b5 | 9750 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9751 | symbols which turn out to need copy relocs or are not |
| 9752 | dynamic. */ | |
| 529fe20e AM |
9753 | if (h->dynamic_adjusted |
| 9754 | && !h->def_regular | |
| 9755 | && !ELF_COMMON_DEF_P (h)) | |
| f0158f44 | 9756 | { |
| 46434633 AM |
9757 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9758 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9759 | return FALSE; |
| dfbb6ac9 | 9760 | |
| f0158f44 AM |
9761 | if (h->dynindx == -1) |
| 9762 | eh->dyn_relocs = NULL; | |
| 9763 | } | |
| 9764 | else | |
| 8a2058b5 | 9765 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9766 | } |
| 9767 | ||
| 9768 | /* Finally, allocate space. */ | |
| 9769 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9770 | { | |
| 9771 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9772 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9773 | sreloc = htab->elf.irelplt; | |
| 9774 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9775 | } |
| 65f38f15 | 9776 | } |
| 57e7d118 AM |
9777 | |
| 9778 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9779 | && h->dynindx != -1) |
| 57e7d118 | 9780 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9781 | { |
| 57e7d118 AM |
9782 | struct plt_entry *pent; |
| 9783 | bfd_boolean doneone = FALSE; | |
| 9784 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9785 | if (pent->plt.refcount > 0) | |
| 9786 | { | |
| 9787 | if (!htab->elf.dynamic_sections_created | |
| 9788 | || h->dynindx == -1) | |
| 9789 | { | |
| 9790 | s = htab->elf.iplt; | |
| 9791 | pent->plt.offset = s->size; | |
| 9792 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9793 | s = htab->elf.irelplt; | |
| 9794 | } | |
| 9795 | else | |
| 9796 | { | |
| 9797 | /* If this is the first .plt entry, make room for the special | |
| 9798 | first entry. */ | |
| 9799 | s = htab->elf.splt; | |
| 9800 | if (s->size == 0) | |
| 9801 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9802 | |
| 57e7d118 | 9803 | pent->plt.offset = s->size; |
| 65f38f15 | 9804 | |
| 57e7d118 AM |
9805 | /* Make room for this entry. */ |
| 9806 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9807 | |
| 57e7d118 AM |
9808 | /* Make room for the .glink code. */ |
| 9809 | s = htab->glink; | |
| 9810 | if (s->size == 0) | |
| 9e390558 | 9811 | s->size += GLINK_PLTRESOLVE_SIZE (htab); |
| 57e7d118 AM |
9812 | if (htab->opd_abi) |
| 9813 | { | |
| 9814 | /* We need bigger stubs past index 32767. */ | |
| 9e390558 | 9815 | if (s->size >= GLINK_PLTRESOLVE_SIZE (htab) + 32768*2*4) |
| 57e7d118 AM |
9816 | s->size += 4; |
| 9817 | s->size += 2*4; | |
| 9818 | } | |
| 9819 | else | |
| 9820 | s->size += 4; | |
| 65f38f15 | 9821 | |
| 57e7d118 AM |
9822 | /* We also need to make an entry in the .rela.plt section. */ |
| 9823 | s = htab->elf.srelplt; | |
| 9824 | } | |
| 9825 | s->size += sizeof (Elf64_External_Rela); | |
| 9826 | doneone = TRUE; | |
| 9827 | } | |
| 9828 | else | |
| 9829 | pent->plt.offset = (bfd_vma) -1; | |
| 9830 | if (!doneone) | |
| 9831 | { | |
| 9832 | h->plt.plist = NULL; | |
| 9833 | h->needs_plt = 0; | |
| 9834 | } | |
| 65f38f15 | 9835 | } |
| 57e7d118 | 9836 | else |
| 65f38f15 | 9837 | { |
| 57e7d118 AM |
9838 | h->plt.plist = NULL; |
| 9839 | h->needs_plt = 0; | |
| 65f38f15 AM |
9840 | } |
| 9841 | ||
| b34976b6 | 9842 | return TRUE; |
| 65f38f15 AM |
9843 | } |
| 9844 | ||
| 9e390558 AM |
9845 | #define PPC_LO(v) ((v) & 0xffff) |
| 9846 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 9847 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 9848 | ||
| a345bc8d AM |
9849 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9850 | to set up space for global entry stubs. These are put in glink, | |
| 9851 | after the branch table. */ | |
| 65f38f15 | 9852 | |
| b34976b6 | 9853 | static bfd_boolean |
| a345bc8d | 9854 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9855 | { |
| a345bc8d AM |
9856 | struct bfd_link_info *info; |
| 9857 | struct ppc_link_hash_table *htab; | |
| 9858 | struct plt_entry *pent; | |
| 9e390558 | 9859 | asection *s, *plt; |
| 65f38f15 | 9860 | |
| a345bc8d AM |
9861 | if (h->root.type == bfd_link_hash_indirect) |
| 9862 | return TRUE; | |
| 65f38f15 | 9863 | |
| a345bc8d AM |
9864 | if (!h->pointer_equality_needed) |
| 9865 | return TRUE; | |
| 65f38f15 | 9866 | |
| a345bc8d AM |
9867 | if (h->def_regular) |
| 9868 | return TRUE; | |
| 65f38f15 | 9869 | |
| a345bc8d AM |
9870 | info = inf; |
| 9871 | htab = ppc_hash_table (info); | |
| 9872 | if (htab == NULL) | |
| 9873 | return FALSE; | |
| 9874 | ||
| 9e390558 AM |
9875 | s = htab->global_entry; |
| 9876 | plt = htab->elf.splt; | |
| a345bc8d AM |
9877 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 9878 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9879 | && pent->addend == 0) | |
| 9880 | { | |
| afe397ea AM |
9881 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9882 | and we are not generating a shared library or pie, then we | |
| 9883 | need to define the symbol in the executable on a call stub. | |
| 9884 | This is to avoid text relocations. */ | |
| 9e390558 AM |
9885 | bfd_vma off, stub_align, stub_off, stub_size; |
| 9886 | unsigned int align_power; | |
| 9887 | ||
| 9888 | stub_size = 16; | |
| 1be5d8d3 AM |
9889 | if (!htab->params->speculate_indirect_jumps) |
| 9890 | stub_size += 8; | |
| 9e390558 AM |
9891 | stub_off = s->size; |
| 9892 | if (htab->params->plt_stub_align >= 0) | |
| 9893 | align_power = htab->params->plt_stub_align; | |
| 9894 | else | |
| 9895 | align_power = -htab->params->plt_stub_align; | |
| 9896 | /* Setting section alignment is delayed until we know it is | |
| 9897 | non-empty. Otherwise the .text output section will be | |
| 9898 | aligned at least to plt_stub_align even when no global | |
| 9899 | entry stubs are needed. */ | |
| 9900 | if (s->alignment_power < align_power) | |
| 9901 | s->alignment_power = align_power; | |
| 9902 | stub_align = (bfd_vma) 1 << align_power; | |
| 9903 | if (htab->params->plt_stub_align >= 0 | |
| 9904 | || ((((stub_off + stub_size - 1) & -stub_align) | |
| 9905 | - (stub_off & -stub_align)) | |
| 9906 | > ((stub_size - 1) & -stub_align))) | |
| 9907 | stub_off = (stub_off + stub_align - 1) & -stub_align; | |
| 9908 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; | |
| 9909 | off -= stub_off + s->output_offset + s->output_section->vma; | |
| 9910 | /* Note that for --plt-stub-align negative we have a possible | |
| 9911 | dependency between stub offset and size. Break that | |
| 9912 | dependency by assuming the max stub size when calculating | |
| 9913 | the stub offset. */ | |
| 9914 | if (PPC_HA (off) == 0) | |
| 9915 | stub_size -= 4; | |
| 8a2058b5 | 9916 | h->root.type = bfd_link_hash_defined; |
| afe397ea | 9917 | h->root.u.def.section = s; |
| 9e390558 AM |
9918 | h->root.u.def.value = stub_off; |
| 9919 | s->size = stub_off + stub_size; | |
| a345bc8d AM |
9920 | break; |
| 9921 | } | |
| 9922 | return TRUE; | |
| 9923 | } | |
| 9924 | ||
| 9925 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9926 | read-only sections. */ | |
| 9927 | ||
| 9928 | static bfd_boolean | |
| 98bbb1b8 | 9929 | maybe_set_textrel (struct elf_link_hash_entry *h, void *inf) |
| a345bc8d | 9930 | { |
| 98bbb1b8 AM |
9931 | asection *sec; |
| 9932 | ||
| a345bc8d AM |
9933 | if (h->root.type == bfd_link_hash_indirect) |
| 9934 | return TRUE; | |
| 9935 | ||
| 98bbb1b8 AM |
9936 | sec = readonly_dynrelocs (h); |
| 9937 | if (sec != NULL) | |
| a345bc8d | 9938 | { |
| 98bbb1b8 AM |
9939 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| 9940 | ||
| 9941 | info->flags |= DF_TEXTREL; | |
| 9942 | info->callbacks->minfo | |
| 63c1f59d AM |
9943 | (_("%B: dynamic relocation against `%T' in read-only section `%A'\n"), |
| 9944 | sec->owner, h->root.root.string, sec); | |
| a345bc8d AM |
9945 | |
| 9946 | /* Not an error, just cut short the traversal. */ | |
| 9947 | return FALSE; | |
| 65f38f15 | 9948 | } |
| b34976b6 | 9949 | return TRUE; |
| 65f38f15 AM |
9950 | } |
| 9951 | ||
| 9952 | /* Set the sizes of the dynamic sections. */ | |
| 9953 | ||
| b34976b6 | 9954 | static bfd_boolean |
| ee67d69a | 9955 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9956 | struct bfd_link_info *info) |
| 65f38f15 AM |
9957 | { |
| 9958 | struct ppc_link_hash_table *htab; | |
| 9959 | bfd *dynobj; | |
| 9960 | asection *s; | |
| b34976b6 | 9961 | bfd_boolean relocs; |
| 65f38f15 | 9962 | bfd *ibfd; |
| 7865406b | 9963 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9964 | |
| 9965 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9966 | if (htab == NULL) |
| 9967 | return FALSE; | |
| 9968 | ||
| 65f38f15 AM |
9969 | dynobj = htab->elf.dynobj; |
| 9970 | if (dynobj == NULL) | |
| 9971 | abort (); | |
| 9972 | ||
| 9973 | if (htab->elf.dynamic_sections_created) | |
| 9974 | { | |
| 9975 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9976 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9977 | { |
| 3d4d4302 | 9978 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9979 | if (s == NULL) |
| 9980 | abort (); | |
| eea6121a | 9981 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9982 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9983 | } | |
| 9984 | } | |
| 9985 | ||
| 9986 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9987 | relocs. */ | |
| c72f2fb2 | 9988 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9989 | { |
| 411e1bfb AM |
9990 | struct got_entry **lgot_ents; |
| 9991 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9992 | struct plt_entry **local_plt; |
| 9993 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9994 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9995 | bfd_size_type locsymcount; |
| 9996 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9997 | |
| 0c8d6e5c | 9998 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9999 | continue; |
| 10000 | ||
| 10001 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10002 | { | |
| 19e08130 | 10003 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10004 | |
| 6edfbbad | 10005 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10006 | { |
| ec338859 AM |
10007 | if (!bfd_is_abs_section (p->sec) |
| 10008 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10009 | { | |
| 10010 | /* Input section has been discarded, either because | |
| 10011 | it is a copy of a linkonce section or due to | |
| 10012 | linker script /DISCARD/, so we'll be discarding | |
| 10013 | the relocs too. */ | |
| 10014 | } | |
| 248866a8 | 10015 | else if (p->count != 0) |
| ec338859 | 10016 | { |
| 19e08130 AM |
10017 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10018 | if (p->ifunc) | |
| 33e44f2e | 10019 | srel = htab->elf.irelplt; |
| eea6121a | 10020 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10021 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10022 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10023 | } |
| 65f38f15 AM |
10024 | } |
| 10025 | } | |
| 10026 | ||
| 411e1bfb AM |
10027 | lgot_ents = elf_local_got_ents (ibfd); |
| 10028 | if (!lgot_ents) | |
| 65f38f15 AM |
10029 | continue; |
| 10030 | ||
| 0ffa91dd | 10031 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10032 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10033 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10034 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10035 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10036 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10037 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10038 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10039 | { |
| 0b8bcf0d | 10040 | struct got_entry **pent, *ent; |
| 411e1bfb | 10041 | |
| 0b8bcf0d AM |
10042 | pent = lgot_ents; |
| 10043 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10044 | if (ent->got.refcount > 0) |
| 10045 | { | |
| e7b938ca | 10046 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10047 | { |
| 927be08e | 10048 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10049 | *pent = ent->next; |
| 411e1bfb AM |
10050 | } |
| 10051 | else | |
| 10052 | { | |
| 19e08130 AM |
10053 | unsigned int ent_size = 8; |
| 10054 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10055 | ||
| eea6121a | 10056 | ent->got.offset = s->size; |
| e7b938ca | 10057 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10058 | { |
| 19e08130 AM |
10059 | ent_size *= 2; |
| 10060 | rel_size *= 2; | |
| 10061 | } | |
| 10062 | s->size += ent_size; | |
| 10063 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10064 | { | |
| 33e44f2e | 10065 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10066 | htab->got_reli_size += rel_size; |
| 10067 | } | |
| f15d0b54 AM |
10068 | else if (bfd_link_pic (info) |
| 10069 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 10070 | && bfd_link_executable (info))) | |
| 19e08130 AM |
10071 | { |
| 10072 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10073 | srel->size += rel_size; | |
| 927be08e | 10074 | } |
| 0b8bcf0d | 10075 | pent = &ent->next; |
| 411e1bfb AM |
10076 | } |
| 10077 | } | |
| 10078 | else | |
| 0b8bcf0d | 10079 | *pent = ent->next; |
| 65f38f15 | 10080 | } |
| e054468f AM |
10081 | |
| 10082 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10083 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10084 | { | |
| 10085 | struct plt_entry *ent; | |
| 10086 | ||
| 10087 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10088 | if (ent->plt.refcount > 0) | |
| 10089 | { | |
| 33e44f2e | 10090 | s = htab->elf.iplt; |
| e054468f | 10091 | ent->plt.offset = s->size; |
| b9e5796b | 10092 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10093 | |
| 33e44f2e | 10094 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10095 | } |
| 10096 | else | |
| 10097 | ent->plt.offset = (bfd_vma) -1; | |
| 10098 | } | |
| 65f38f15 AM |
10099 | } |
| 10100 | ||
| 10101 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10102 | sym dynamic relocs. */ | |
| 4ce794b7 | 10103 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d | 10104 | |
| 0e1862bb | 10105 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10106 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10107 | |
| 7865406b | 10108 | first_tlsld = NULL; |
| c72f2fb2 | 10109 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10110 | { |
| 7865406b AM |
10111 | struct got_entry *ent; |
| 10112 | ||
| 0c8d6e5c | 10113 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10114 | continue; |
| 10115 | ||
| 7865406b AM |
10116 | ent = ppc64_tlsld_got (ibfd); |
| 10117 | if (ent->got.refcount > 0) | |
| 102890f0 | 10118 | { |
| 7865406b | 10119 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10120 | { |
| 7865406b AM |
10121 | ent->is_indirect = TRUE; |
| 10122 | ent->got.ent = first_tlsld; | |
| 10123 | } | |
| 10124 | else | |
| 10125 | { | |
| 10126 | if (first_tlsld == NULL) | |
| 10127 | first_tlsld = ent; | |
| 10128 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10129 | ent->got.offset = s->size; | |
| 10130 | ent->owner = ibfd; | |
| 10131 | s->size += 16; | |
| 0e1862bb | 10132 | if (bfd_link_pic (info)) |
| 7865406b AM |
10133 | { |
| 10134 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10135 | srel->size += sizeof (Elf64_External_Rela); | |
| 10136 | } | |
| 102890f0 AM |
10137 | } |
| 10138 | } | |
| 10139 | else | |
| 7865406b | 10140 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10141 | } |
| 10142 | ||
| 65f38f15 AM |
10143 | /* We now have determined the sizes of the various dynamic sections. |
| 10144 | Allocate memory for them. */ | |
| b34976b6 | 10145 | relocs = FALSE; |
| 65f38f15 AM |
10146 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10147 | { | |
| 10148 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10149 | continue; | |
| 10150 | ||
| 4ce794b7 | 10151 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10152 | /* These haven't been allocated yet; don't strip. */ |
| 10153 | continue; | |
| 33e44f2e AM |
10154 | else if (s == htab->elf.sgot |
| 10155 | || s == htab->elf.splt | |
| 10156 | || s == htab->elf.iplt | |
| c456f082 | 10157 | || s == htab->glink |
| 9e390558 | 10158 | || s == htab->global_entry |
| 5474d94f AM |
10159 | || s == htab->elf.sdynbss |
| 10160 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10161 | { |
| 10162 | /* Strip this section if we don't need it; see the | |
| 10163 | comment below. */ | |
| 5bd4f169 | 10164 | } |
| 58d180e8 AM |
10165 | else if (s == htab->glink_eh_frame) |
| 10166 | { | |
| 10167 | if (!bfd_is_abs_section (s->output_section)) | |
| 10168 | /* Not sized yet. */ | |
| 10169 | continue; | |
| 10170 | } | |
| 70cc837d | 10171 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10172 | { |
| c456f082 | 10173 | if (s->size != 0) |
| 5bd4f169 | 10174 | { |
| 33e44f2e | 10175 | if (s != htab->elf.srelplt) |
| b34976b6 | 10176 | relocs = TRUE; |
| 5bd4f169 AM |
10177 | |
| 10178 | /* We use the reloc_count field as a counter if we need | |
| 10179 | to copy relocs into the output file. */ | |
| 10180 | s->reloc_count = 0; | |
| 10181 | } | |
| 10182 | } | |
| 65f38f15 | 10183 | else |
| 5bd4f169 AM |
10184 | { |
| 10185 | /* It's not one of our sections, so don't allocate space. */ | |
| 10186 | continue; | |
| 10187 | } | |
| 10188 | ||
| eea6121a | 10189 | if (s->size == 0) |
| 5bd4f169 | 10190 | { |
| c456f082 AM |
10191 | /* If we don't need this section, strip it from the |
| 10192 | output file. This is mostly to handle .rela.bss and | |
| 10193 | .rela.plt. We must create both sections in | |
| 10194 | create_dynamic_sections, because they must be created | |
| 10195 | before the linker maps input sections to output | |
| 10196 | sections. The linker does that before | |
| 10197 | adjust_dynamic_symbol is called, and it is that | |
| 10198 | function which decides whether anything needs to go | |
| 10199 | into these sections. */ | |
| 8423293d | 10200 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10201 | continue; |
| 10202 | } | |
| 10203 | ||
| 06bcf541 AM |
10204 | if (bfd_is_abs_section (s->output_section)) |
| 10205 | _bfd_error_handler (_("warning: discarding dynamic section %s"), | |
| 10206 | s->name); | |
| 10207 | ||
| c456f082 | 10208 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10209 | continue; |
| 10210 | ||
| 65f38f15 AM |
10211 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10212 | here in case unused entries are not reclaimed before the | |
| 10213 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10214 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10215 | sections instead of garbage. | |
| 10216 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10217 | the GOT and .dynrelro. */ |
| eea6121a | 10218 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10219 | if (s->contents == NULL) |
| b34976b6 | 10220 | return FALSE; |
| 5bd4f169 AM |
10221 | } |
| 10222 | ||
| c72f2fb2 | 10223 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10224 | { |
| 0c8d6e5c | 10225 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10226 | continue; |
| 10227 | ||
| e717da7e | 10228 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10229 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10230 | { |
| eea6121a | 10231 | if (s->size == 0) |
| 8423293d | 10232 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10233 | else |
| 10234 | { | |
| eea6121a | 10235 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10236 | if (s->contents == NULL) |
| 10237 | return FALSE; | |
| 10238 | } | |
| 10239 | } | |
| 10240 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10241 | if (s != NULL) | |
| 10242 | { | |
| eea6121a | 10243 | if (s->size == 0) |
| 8423293d | 10244 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10245 | else |
| 10246 | { | |
| eea6121a | 10247 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10248 | if (s->contents == NULL) |
| 10249 | return FALSE; | |
| 10250 | relocs = TRUE; | |
| 10251 | s->reloc_count = 0; | |
| 10252 | } | |
| 10253 | } | |
| 10254 | } | |
| 10255 | ||
| e86ce104 | 10256 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10257 | { |
| e8910a83 AM |
10258 | bfd_boolean tls_opt; |
| 10259 | ||
| 5bd4f169 AM |
10260 | /* Add some entries to the .dynamic section. We fill in the |
| 10261 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10262 | must add the entries now so that we get the correct size for | |
| 10263 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10264 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10265 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10266 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10267 | |
| 0e1862bb | 10268 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10269 | { |
| dc810e39 | 10270 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10271 | return FALSE; |
| 5bd4f169 AM |
10272 | } |
| 10273 | ||
| 33e44f2e | 10274 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10275 | { |
| dc810e39 AM |
10276 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10277 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10278 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10279 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10280 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10281 | return FALSE; |
| 5bd4f169 AM |
10282 | } |
| 10283 | ||
| ee67d69a | 10284 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10285 | { |
| 10286 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10287 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10288 | return FALSE; |
| 19397422 AM |
10289 | } |
| 10290 | ||
| 7c9cf415 | 10291 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10292 | && htab->tls_get_addr_fd != NULL |
| 10293 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10294 | if (tls_opt || !htab->opd_abi) | |
| 10295 | { | |
| 10296 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10297 | return FALSE; | |
| 10298 | } | |
| a7f2871e | 10299 | |
| 5bd4f169 AM |
10300 | if (relocs) |
| 10301 | { | |
| dc810e39 AM |
10302 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10303 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10304 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10305 | return FALSE; |
| 5bd4f169 | 10306 | |
| 65f38f15 AM |
10307 | /* If any dynamic relocs apply to a read-only section, |
| 10308 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10309 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10310 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10311 | |
| 65f38f15 | 10312 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10313 | { |
| 65f38f15 | 10314 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10315 | return FALSE; |
| 5bd4f169 | 10316 | } |
| 5bd4f169 | 10317 | } |
| 5bd4f169 | 10318 | } |
| 65f38f15 | 10319 | #undef add_dynamic_entry |
| 5bd4f169 | 10320 | |
| b34976b6 | 10321 | return TRUE; |
| 5bd4f169 AM |
10322 | } |
| 10323 | ||
| a345bc8d AM |
10324 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10325 | ||
| 10326 | static bfd_boolean | |
| 10327 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10328 | { | |
| 10329 | if (h->plt.plist != NULL | |
| 10330 | && !h->def_regular | |
| 10331 | && !h->pointer_equality_needed) | |
| 10332 | return FALSE; | |
| 10333 | ||
| 10334 | return _bfd_elf_hash_symbol (h); | |
| 10335 | } | |
| 10336 | ||
| 721956f4 | 10337 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10338 | |
| 4ce794b7 AM |
10339 | static inline enum ppc_stub_type |
| 10340 | ppc_type_of_stub (asection *input_sec, | |
| 10341 | const Elf_Internal_Rela *rel, | |
| 10342 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10343 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10344 | bfd_vma destination, |
| 10345 | unsigned long local_off) | |
| 5bd4f169 | 10346 | { |
| 721956f4 AM |
10347 | struct ppc_link_hash_entry *h = *hash; |
| 10348 | bfd_vma location; | |
| 10349 | bfd_vma branch_offset; | |
| 10350 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10351 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10352 | |
| 721956f4 AM |
10353 | if (h != NULL) |
| 10354 | { | |
| e054468f | 10355 | struct plt_entry *ent; |
| 7fe2b9a6 | 10356 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10357 | if (h->oh != NULL |
| 10358 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10359 | { |
| 10360 | fdh = ppc_follow_link (h->oh); | |
| 10361 | *hash = fdh; | |
| 10362 | } | |
| 8387904d | 10363 | |
| e054468f AM |
10364 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10365 | if (ent->addend == rel->r_addend | |
| 10366 | && ent->plt.offset != (bfd_vma) -1) | |
| 10367 | { | |
| e054468f AM |
10368 | *plt_ent = ent; |
| 10369 | return ppc_stub_plt_call; | |
| 10370 | } | |
| 5bd4f169 | 10371 | |
| 7fe2b9a6 AM |
10372 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10373 | either a defined function descriptor or a defined entry symbol | |
| 10374 | in a regular object file, then it is pointless trying to make | |
| 10375 | any other type of stub. */ | |
| 854b41e7 AM |
10376 | if (!is_static_defined (&fdh->elf) |
| 10377 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10378 | return ppc_stub_none; |
| 5d1634d7 | 10379 | } |
| e054468f AM |
10380 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10381 | { | |
| 10382 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10383 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10384 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10385 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10386 | ||
| 10387 | if (local_plt[r_symndx] != NULL) | |
| 10388 | { | |
| 10389 | struct plt_entry *ent; | |
| 10390 | ||
| 10391 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10392 | if (ent->addend == rel->r_addend | |
| 10393 | && ent->plt.offset != (bfd_vma) -1) | |
| 10394 | { | |
| 10395 | *plt_ent = ent; | |
| 10396 | return ppc_stub_plt_call; | |
| 10397 | } | |
| 10398 | } | |
| 10399 | } | |
| 5d1634d7 | 10400 | |
| 721956f4 AM |
10401 | /* Determine where the call point is. */ |
| 10402 | location = (input_sec->output_offset | |
| 10403 | + input_sec->output_section->vma | |
| 10404 | + rel->r_offset); | |
| 5d1634d7 | 10405 | |
| 721956f4 AM |
10406 | branch_offset = destination - location; |
| 10407 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10408 | |
| 721956f4 AM |
10409 | /* Determine if a long branch stub is needed. */ |
| 10410 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10411 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10412 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10413 | |
| 6911b7dc | 10414 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10415 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10416 | is needed later. */ | |
| 10417 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10418 | |
| 721956f4 | 10419 | return ppc_stub_none; |
| 5d1634d7 AM |
10420 | } |
| 10421 | ||
| 794e51c0 AM |
10422 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10423 | to update a plt entry in one thread and have another thread see a | |
| 10424 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10425 | barrier in the call stub. One solution is to make the load of the | |
| 10426 | toc word seem to appear to depend on the load of the function entry | |
| 10427 | word. Another solution is to test for r2 being zero, and branch to | |
| 10428 | the appropriate glink entry if so. | |
| 10429 | ||
| 10430 | . fake dep barrier compare | |
| 71a39c98 AM |
10431 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10432 | . mtctr 12 mtctr 12 | |
| 10433 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10434 | . add 2,2,11 cmpldi 2,0 |
| 10435 | . ld 2,xxx+8(2) bnectr+ | |
| 10436 | . bctr b <glink_entry> | |
| 10437 | ||
| 10438 | The solution involving the compare turns out to be faster, so | |
| 10439 | that's what we use unless the branch won't reach. */ | |
| 10440 | ||
| 10441 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10442 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10443 | |
| 794e51c0 AM |
10444 | static inline unsigned int |
| 10445 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10446 | struct ppc_stub_hash_entry *stub_entry, | |
| 10447 | bfd_vma off) | |
| 10448 | { | |
| b9e5796b AM |
10449 | unsigned size = 12; |
| 10450 | ||
| 10451 | if (ALWAYS_EMIT_R2SAVE | |
| 10452 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10453 | size += 4; | |
| 10454 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10455 | size += 4; |
| 1be5d8d3 AM |
10456 | if (!htab->params->speculate_indirect_jumps) |
| 10457 | size += 8; | |
| b9e5796b AM |
10458 | if (htab->opd_abi) |
| 10459 | { | |
| 10460 | size += 4; | |
| e7d1c40c | 10461 | if (htab->params->plt_static_chain) |
| b9e5796b | 10462 | size += 4; |
| bd4d2eaa AM |
10463 | if (htab->params->plt_thread_safe |
| 10464 | && htab->elf.dynamic_sections_created | |
| 10465 | && stub_entry->h != NULL | |
| 10466 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10467 | size += 8; |
| e7d1c40c | 10468 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10469 | size += 4; |
| 10470 | } | |
| 794e51c0 AM |
10471 | if (stub_entry->h != NULL |
| 10472 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10473 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10474 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10475 | { |
| 10476 | size += 7 * 4; | |
| 10477 | if (ALWAYS_EMIT_R2SAVE | |
| 10478 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 1be5d8d3 AM |
10479 | { |
| 10480 | size += 6 * 4; | |
| 10481 | if (!htab->params->speculate_indirect_jumps) | |
| 10482 | size -= 4; | |
| 10483 | } | |
| f378ab09 | 10484 | } |
| 794e51c0 AM |
10485 | return size; |
| 10486 | } | |
| 10487 | ||
| 2420fff6 AM |
10488 | /* Depending on the sign of plt_stub_align: |
| 10489 | If positive, return the padding to align to a 2**plt_stub_align | |
| 10490 | boundary. | |
| 10491 | If negative, if this stub would cross fewer 2**plt_stub_align | |
| 10492 | boundaries if we align, then return the padding needed to do so. */ | |
| 10493 | ||
| 794e51c0 AM |
10494 | static inline unsigned int |
| 10495 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10496 | struct ppc_stub_hash_entry *stub_entry, | |
| 10497 | bfd_vma plt_off) | |
| 10498 | { | |
| 2420fff6 | 10499 | int stub_align; |
| 794e51c0 | 10500 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10501 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 | 10502 | |
| 2420fff6 AM |
10503 | if (htab->params->plt_stub_align >= 0) |
| 10504 | { | |
| 10505 | stub_align = 1 << htab->params->plt_stub_align; | |
| 10506 | if ((stub_off & (stub_align - 1)) != 0) | |
| 10507 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10508 | return 0; | |
| 10509 | } | |
| 10510 | ||
| 10511 | stub_align = 1 << -htab->params->plt_stub_align; | |
| 794e51c0 | 10512 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) |
| e05fa0ba | 10513 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10514 | return stub_align - (stub_off & (stub_align - 1)); |
| 10515 | return 0; | |
| 10516 | } | |
| 10517 | ||
| 1be5d8d3 AM |
10518 | static inline bfd_byte * |
| 10519 | output_bctr (struct ppc_link_hash_table *htab, bfd *obfd, bfd_byte *p) | |
| 10520 | { | |
| 10521 | if (!htab->params->speculate_indirect_jumps) | |
| 10522 | { | |
| 10523 | bfd_put_32 (obfd, CRSETEQ, p); | |
| 10524 | p += 4; | |
| 10525 | bfd_put_32 (obfd, BEQCTRM, p); | |
| 10526 | p += 4; | |
| 10527 | bfd_put_32 (obfd, B_DOT, p); | |
| 10528 | p += 4; | |
| 10529 | } | |
| 10530 | else | |
| 10531 | { | |
| 10532 | bfd_put_32 (obfd, BCTR, p); | |
| 10533 | p += 4; | |
| 10534 | } | |
| 10535 | return p; | |
| 10536 | } | |
| 10537 | ||
| 794e51c0 AM |
10538 | /* Build a .plt call stub. */ |
| 10539 | ||
| 10540 | static inline bfd_byte * | |
| 10541 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10542 | struct ppc_stub_hash_entry *stub_entry, | |
| 10543 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10544 | { | |
| e7d1c40c | 10545 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10546 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10547 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10548 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10549 | && htab->elf.dynamic_sections_created | |
| 10550 | && stub_entry->h != NULL | |
| 10551 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10552 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10553 | bfd_vma cmp_branch_off = 0; | |
| 10554 | ||
| 10555 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10556 | && plt_load_toc |
| 794e51c0 | 10557 | && plt_thread_safe |
| 1be5d8d3 | 10558 | && htab->params->speculate_indirect_jumps |
| bd4d2eaa AM |
10559 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10560 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10561 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10562 | { |
| 10563 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10564 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10565 | / PLT_ENTRY_SIZE (htab)); | |
| 9e390558 | 10566 | bfd_vma glinkoff = GLINK_PLTRESOLVE_SIZE (htab) + pltindex * 8; |
| 794e51c0 AM |
10567 | bfd_vma to, from; |
| 10568 | ||
| 68d62958 AM |
10569 | if (pltindex > 32768) |
| 10570 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10571 | to = (glinkoff |
| 10572 | + htab->glink->output_offset | |
| 10573 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10574 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10575 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10576 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10577 | + 4 * (PPC_HA (offset) != 0) | |
| 10578 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10579 | != PPC_HA (offset)) | |
| 10580 | + 4 * (plt_static_chain != 0) | |
| 10581 | + 20 | |
| 6f20ed8a AM |
10582 | + stub_entry->group->stub_sec->output_offset |
| 10583 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10584 | cmp_branch_off = to - from; |
| 10585 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10586 | } | |
| 10587 | ||
| ac2df442 AM |
10588 | if (PPC_HA (offset) != 0) |
| 10589 | { | |
| 176a0d42 AM |
10590 | if (r != NULL) |
| 10591 | { | |
| 794e51c0 AM |
10592 | if (ALWAYS_EMIT_R2SAVE |
| 10593 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10594 | r[0].r_offset += 4; | |
| 176a0d42 | 10595 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10596 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10597 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10598 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10599 | if (plt_load_toc) |
| 176a0d42 | 10600 | { |
| b9e5796b | 10601 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10602 | { |
| b9e5796b AM |
10603 | r[2].r_offset = r[1].r_offset + 4; |
| 10604 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10605 | r[2].r_addend = r[0].r_addend; | |
| 10606 | } | |
| 10607 | else | |
| 10608 | { | |
| 10609 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10610 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10611 | r[2].r_addend = r[0].r_addend + 8; | |
| 10612 | if (plt_static_chain) | |
| 10613 | { | |
| 10614 | r[3].r_offset = r[2].r_offset + 4; | |
| 10615 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10616 | r[3].r_addend = r[0].r_addend + 16; | |
| 10617 | } | |
| c7131b65 | 10618 | } |
| 176a0d42 AM |
10619 | } |
| 10620 | } | |
| 794e51c0 AM |
10621 | if (ALWAYS_EMIT_R2SAVE |
| 10622 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10623 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10624 | if (plt_load_toc) |
| 10625 | { | |
| 10626 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10627 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10628 | } | |
| 10629 | else | |
| 10630 | { | |
| 10631 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10632 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10633 | } | |
| b9e5796b AM |
10634 | if (plt_load_toc |
| 10635 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10636 | { |
| 71a39c98 | 10637 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10638 | offset = 0; |
| 10639 | } | |
| 71a39c98 | 10640 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10641 | if (plt_load_toc) |
| 794e51c0 | 10642 | { |
| b9e5796b AM |
10643 | if (use_fake_dep) |
| 10644 | { | |
| 10645 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10646 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10647 | } | |
| 10648 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10649 | if (plt_static_chain) | |
| 10650 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10651 | } |
| ac2df442 AM |
10652 | } |
| 10653 | else | |
| 10654 | { | |
| 176a0d42 AM |
10655 | if (r != NULL) |
| 10656 | { | |
| 794e51c0 AM |
10657 | if (ALWAYS_EMIT_R2SAVE |
| 10658 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10659 | r[0].r_offset += 4; | |
| 176a0d42 | 10660 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10661 | if (plt_load_toc) |
| 176a0d42 | 10662 | { |
| b9e5796b | 10663 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10664 | { |
| b9e5796b AM |
10665 | r[1].r_offset = r[0].r_offset + 4; |
| 10666 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10667 | r[1].r_addend = r[0].r_addend; | |
| 10668 | } | |
| 10669 | else | |
| 10670 | { | |
| 10671 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10672 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10673 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10674 | if (plt_static_chain) | |
| 10675 | { | |
| 10676 | r[2].r_offset = r[1].r_offset + 4; | |
| 10677 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10678 | r[2].r_addend = r[0].r_addend + 8; | |
| 10679 | } | |
| c7131b65 | 10680 | } |
| 176a0d42 AM |
10681 | } |
| 10682 | } | |
| 794e51c0 AM |
10683 | if (ALWAYS_EMIT_R2SAVE |
| 10684 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10685 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10686 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10687 | if (plt_load_toc |
| 10688 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10689 | { |
| 10690 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10691 | offset = 0; | |
| 10692 | } | |
| 71a39c98 | 10693 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10694 | if (plt_load_toc) |
| 794e51c0 | 10695 | { |
| b9e5796b AM |
10696 | if (use_fake_dep) |
| 10697 | { | |
| 10698 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10699 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10700 | } | |
| 10701 | if (plt_static_chain) | |
| 10702 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10703 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10704 | } |
| ac2df442 | 10705 | } |
| b9e5796b | 10706 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10707 | { |
| 10708 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10709 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10710 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10711 | } |
| 10712 | else | |
| 1be5d8d3 | 10713 | p = output_bctr (htab, obfd, p); |
| 5d1634d7 AM |
10714 | return p; |
| 10715 | } | |
| 10716 | ||
| a7f2871e AM |
10717 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10718 | ||
| 10719 | #define LD_R11_0R3 0xe9630000 | |
| 10720 | #define LD_R12_0R3 0xe9830000 | |
| 10721 | #define MR_R0_R3 0x7c601b78 | |
| 10722 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10723 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10724 | #define BEQLR 0x4d820020 | |
| 10725 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10726 | #define STD_R11_0R1 0xf9610000 |
| 10727 | #define BCTRL 0x4e800421 | |
| 10728 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10729 | #define MTLR_R11 0x7d6803a6 |
| 10730 | ||
| 10731 | static inline bfd_byte * | |
| 794e51c0 AM |
10732 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10733 | struct ppc_stub_hash_entry *stub_entry, | |
| 10734 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10735 | { |
| e7d1c40c | 10736 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10737 | |
| a7f2871e AM |
10738 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10739 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10740 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10741 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10742 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10743 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10744 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
10745 | if (r != NULL) |
| 10746 | r[0].r_offset += 7 * 4; | |
| 10747 | if (!ALWAYS_EMIT_R2SAVE | |
| 10748 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 10749 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 10750 | ||
| a7f2871e | 10751 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 10752 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10753 | |
| 10754 | if (r != NULL) | |
| f378ab09 | 10755 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 10756 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| 1be5d8d3 AM |
10757 | if (!htab->params->speculate_indirect_jumps) |
| 10758 | { | |
| 10759 | p -= 4; | |
| 10760 | bfd_put_32 (obfd, BEQCTRLM, p - 4); | |
| 10761 | } | |
| 10762 | else | |
| 10763 | bfd_put_32 (obfd, BCTRL, p - 4); | |
| a7f2871e | 10764 | |
| a078d95a | 10765 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10766 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10767 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10768 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10769 | ||
| 10770 | return p; | |
| 10771 | } | |
| 10772 | ||
| 176a0d42 AM |
10773 | static Elf_Internal_Rela * |
| 10774 | get_relocs (asection *sec, int count) | |
| 10775 | { | |
| 10776 | Elf_Internal_Rela *relocs; | |
| 10777 | struct bfd_elf_section_data *elfsec_data; | |
| 10778 | ||
| 10779 | elfsec_data = elf_section_data (sec); | |
| 10780 | relocs = elfsec_data->relocs; | |
| 10781 | if (relocs == NULL) | |
| 10782 | { | |
| 10783 | bfd_size_type relsize; | |
| 10784 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10785 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10786 | if (relocs == NULL) | |
| 10787 | return NULL; | |
| 10788 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10789 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10790 | sizeof (Elf_Internal_Shdr)); | |
| 10791 | if (elfsec_data->rela.hdr == NULL) | |
| 10792 | return NULL; | |
| 10793 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10794 | * sizeof (Elf64_External_Rela)); | |
| 10795 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10796 | sec->reloc_count = 0; |
| 10797 | } | |
| 10798 | relocs += sec->reloc_count; | |
| 10799 | sec->reloc_count += count; | |
| 10800 | return relocs; | |
| 10801 | } | |
| 10802 | ||
| aa374f67 | 10803 | static bfd_vma |
| 25f53a85 | 10804 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10805 | struct ppc_stub_hash_entry *stub_entry) |
| 10806 | { | |
| 25f53a85 | 10807 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10808 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10809 | |
| 10810 | if (r2off == 0) | |
| 10811 | { | |
| 10812 | /* Support linking -R objects. Get the toc pointer from the | |
| 10813 | opd entry. */ | |
| 10814 | char buf[8]; | |
| b9e5796b AM |
10815 | if (!htab->opd_abi) |
| 10816 | return r2off; | |
| aa374f67 AM |
10817 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10818 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10819 | ||
| 10820 | if (strcmp (opd->name, ".opd") != 0 | |
| 10821 | || opd->reloc_count != 0) | |
| 10822 | { | |
| bc30df16 | 10823 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10824 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10825 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10826 | return (bfd_vma) -1; |
| aa374f67 AM |
10827 | } |
| 10828 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10829 | return (bfd_vma) -1; |
| aa374f67 | 10830 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10831 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10832 | } |
| 6f20ed8a | 10833 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10834 | return r2off; |
| 10835 | } | |
| 10836 | ||
| b34976b6 | 10837 | static bfd_boolean |
| 4ce794b7 | 10838 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10839 | { |
| 721956f4 AM |
10840 | struct ppc_stub_hash_entry *stub_entry; |
| 10841 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10842 | struct bfd_link_info *info; |
| 10843 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10844 | bfd_byte *loc; |
| 10845 | bfd_byte *p; | |
| ee75fd95 | 10846 | bfd_vma dest, off; |
| 176a0d42 | 10847 | Elf_Internal_Rela *r; |
| e054468f | 10848 | asection *plt; |
| 5d1634d7 | 10849 | |
| 721956f4 AM |
10850 | /* Massage our args to the form they really have. */ |
| 10851 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10852 | info = in_arg; |
| 5d1634d7 | 10853 | |
| 5d1634d7 | 10854 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10855 | if (htab == NULL) |
| 10856 | return FALSE; | |
| 5d1634d7 | 10857 | |
| 721956f4 | 10858 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10859 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10860 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10861 | |
| 4ce794b7 | 10862 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10863 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10864 | { |
| 721956f4 | 10865 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10866 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10867 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10868 | dest = (stub_entry->target_value |
| 10869 | + stub_entry->target_section->output_offset | |
| 10870 | + stub_entry->target_section->output_section->vma); | |
| 10871 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10872 | off = dest; | |
| 5d1634d7 | 10873 | |
| 721956f4 AM |
10874 | /* And this is where we are coming from. */ |
| 10875 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10876 | + stub_entry->group->stub_sec->output_offset |
| 10877 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10878 | |
| 9e390558 | 10879 | p = loc; |
| ac2df442 | 10880 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) |
| ad8e1ba5 | 10881 | { |
| 25f53a85 | 10882 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10883 | |
| a7c49797 | 10884 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10885 | { |
| 10886 | htab->stub_error = TRUE; | |
| 10887 | return FALSE; | |
| 10888 | } | |
| 9e390558 AM |
10889 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 10890 | p += 4; | |
| ac2df442 AM |
10891 | if (PPC_HA (r2off) != 0) |
| 10892 | { | |
| e7d1c40c | 10893 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
10894 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 10895 | p += 4; | |
| a7c49797 AM |
10896 | } |
| 10897 | if (PPC_LO (r2off) != 0) | |
| 10898 | { | |
| 10899 | bfd_put_32 (htab->params->stub_bfd, | |
| 9e390558 AM |
10900 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| 10901 | p += 4; | |
| ac2df442 | 10902 | } |
| 9e390558 | 10903 | off -= p - loc; |
| ad8e1ba5 | 10904 | } |
| 9e390558 AM |
10905 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), p); |
| 10906 | p += 4; | |
| ad8e1ba5 | 10907 | |
| 5c3dead3 AM |
10908 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10909 | { | |
| bc30df16 AM |
10910 | info->callbacks->einfo |
| 10911 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10912 | stub_entry->root.string); | |
| 5c3dead3 AM |
10913 | htab->stub_error = TRUE; |
| 10914 | return FALSE; | |
| 10915 | } | |
| ee75fd95 AM |
10916 | |
| 10917 | if (info->emitrelocations) | |
| 10918 | { | |
| 6f20ed8a | 10919 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10920 | if (r == NULL) |
| 10921 | return FALSE; | |
| 9e390558 | 10922 | r->r_offset = p - 4 - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10923 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10924 | r->r_addend = dest; | |
| 10925 | if (stub_entry->h != NULL) | |
| 10926 | { | |
| 10927 | struct elf_link_hash_entry **hashes; | |
| 10928 | unsigned long symndx; | |
| 10929 | struct ppc_link_hash_entry *h; | |
| 10930 | ||
| e7d1c40c | 10931 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10932 | if (hashes == NULL) |
| 10933 | { | |
| 10934 | bfd_size_type hsize; | |
| 10935 | ||
| 10936 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10937 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10938 | if (hashes == NULL) |
| 10939 | return FALSE; | |
| e7d1c40c | 10940 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10941 | htab->stub_globals = 1; |
| 10942 | } | |
| 10943 | symndx = htab->stub_globals++; | |
| 10944 | h = stub_entry->h; | |
| 10945 | hashes[symndx] = &h->elf; | |
| 10946 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10947 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10948 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10949 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10950 | /* H is an opd symbol. The addend must be zero. */ | |
| 10951 | r->r_addend = 0; | |
| 10952 | else | |
| 10953 | { | |
| 10954 | off = (h->elf.root.u.def.value | |
| 10955 | + h->elf.root.u.def.section->output_offset | |
| 10956 | + h->elf.root.u.def.section->output_section->vma); | |
| 10957 | r->r_addend -= off; | |
| 10958 | } | |
| 10959 | } | |
| 10960 | } | |
| 721956f4 | 10961 | break; |
| e86ce104 | 10962 | |
| 721956f4 | 10963 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10964 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10965 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10966 | stub_entry->root.string + 9, | |
| b34976b6 | 10967 | FALSE, FALSE); |
| 721956f4 AM |
10968 | if (br_entry == NULL) |
| 10969 | { | |
| 8de848d8 | 10970 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10971 | stub_entry->root.string); |
| b34976b6 AM |
10972 | htab->stub_error = TRUE; |
| 10973 | return FALSE; | |
| 721956f4 AM |
10974 | } |
| 10975 | ||
| 176a0d42 AM |
10976 | dest = (stub_entry->target_value |
| 10977 | + stub_entry->target_section->output_offset | |
| 10978 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10979 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10980 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10981 | |
| 176a0d42 | 10982 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10983 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10984 | |
| f94498ff | 10985 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10986 | { |
| f94498ff | 10987 | br_entry->iter = 0; |
| 84f5d08e | 10988 | |
| f94498ff | 10989 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10990 | { |
| f94498ff AM |
10991 | /* Create a reloc for the branch lookup table entry. */ |
| 10992 | Elf_Internal_Rela rela; | |
| 10993 | bfd_byte *rl; | |
| 10994 | ||
| 10995 | rela.r_offset = (br_entry->offset | |
| 10996 | + htab->brlt->output_offset | |
| 10997 | + htab->brlt->output_section->vma); | |
| 10998 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10999 | rela.r_addend = dest; |
| f94498ff AM |
11000 | |
| 11001 | rl = htab->relbrlt->contents; | |
| 11002 | rl += (htab->relbrlt->reloc_count++ | |
| 11003 | * sizeof (Elf64_External_Rela)); | |
| 11004 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 11005 | } | |
| 11006 | else if (info->emitrelocations) | |
| 11007 | { | |
| 176a0d42 AM |
11008 | r = get_relocs (htab->brlt, 1); |
| 11009 | if (r == NULL) | |
| 11010 | return FALSE; | |
| 11011 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 11012 | normal reloc processing. Symbols and offsets are not | |
| 11013 | translated from input file to output file form, so | |
| 11014 | set up the offset per the output file. */ | |
| f94498ff AM |
11015 | r->r_offset = (br_entry->offset |
| 11016 | + htab->brlt->output_offset | |
| 11017 | + htab->brlt->output_section->vma); | |
| 11018 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11019 | r->r_addend = dest; |
| 84f5d08e | 11020 | } |
| 84f5d08e | 11021 | } |
| 721956f4 | 11022 | |
| 176a0d42 AM |
11023 | dest = (br_entry->offset |
| 11024 | + htab->brlt->output_offset | |
| 11025 | + htab->brlt->output_section->vma); | |
| 11026 | ||
| 11027 | off = (dest | |
| 06bcf541 | 11028 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11029 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11030 | |
| ad8e1ba5 | 11031 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11032 | { |
| 25f53a85 | 11033 | info->callbacks->einfo |
| bc30df16 | 11034 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 11035 | stub_entry->root.string); |
| 5d1634d7 | 11036 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11037 | htab->stub_error = TRUE; |
| 11038 | return FALSE; | |
| 5d1634d7 | 11039 | } |
| 41bd81ab | 11040 | |
| 176a0d42 AM |
11041 | if (info->emitrelocations) |
| 11042 | { | |
| 6f20ed8a | 11043 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11044 | if (r == NULL) |
| 11045 | return FALSE; | |
| 6f20ed8a | 11046 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11047 | if (bfd_big_endian (info->output_bfd)) |
| 11048 | r[0].r_offset += 2; | |
| 00f412ee | 11049 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11050 | r[0].r_offset += 4; |
| 11051 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11052 | r[0].r_addend = dest; | |
| 11053 | if (PPC_HA (off) != 0) | |
| 11054 | { | |
| 11055 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11056 | r[1].r_offset = r[0].r_offset + 4; | |
| 11057 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11058 | r[1].r_addend = r[0].r_addend; | |
| 11059 | } | |
| 11060 | } | |
| 11061 | ||
| 9e390558 | 11062 | p = loc; |
| 00f412ee | 11063 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11064 | { |
| 176a0d42 | 11065 | if (PPC_HA (off) != 0) |
| ac2df442 | 11066 | { |
| e7d1c40c | 11067 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11068 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11069 | p += 4; | |
| e7d1c40c | 11070 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11071 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11072 | } |
| 11073 | else | |
| 9e390558 AM |
11074 | bfd_put_32 (htab->params->stub_bfd, |
| 11075 | LD_R12_0R2 | PPC_LO (off), p); | |
| ad8e1ba5 AM |
11076 | } |
| 11077 | else | |
| 11078 | { | |
| 25f53a85 | 11079 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11080 | |
| a7c49797 | 11081 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11082 | { |
| 11083 | htab->stub_error = TRUE; | |
| 11084 | return FALSE; | |
| 11085 | } | |
| ad8e1ba5 | 11086 | |
| 9e390558 AM |
11087 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 11088 | p += 4; | |
| 176a0d42 | 11089 | if (PPC_HA (off) != 0) |
| ac2df442 | 11090 | { |
| e7d1c40c | 11091 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11092 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11093 | p += 4; | |
| e7d1c40c | 11094 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11095 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11096 | } |
| 11097 | else | |
| 9e390558 | 11098 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), p); |
| ac2df442 AM |
11099 | |
| 11100 | if (PPC_HA (r2off) != 0) | |
| 11101 | { | |
| 9e390558 | 11102 | p += 4; |
| e7d1c40c | 11103 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11104 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 00f412ee AM |
11105 | } |
| 11106 | if (PPC_LO (r2off) != 0) | |
| 11107 | { | |
| 9e390558 | 11108 | p += 4; |
| e7d1c40c | 11109 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11110 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| ac2df442 | 11111 | } |
| ad8e1ba5 | 11112 | } |
| 9e390558 AM |
11113 | p += 4; |
| 11114 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, p); | |
| 11115 | p += 4; | |
| 1be5d8d3 | 11116 | p = output_bctr (htab, htab->params->stub_bfd, p); |
| 721956f4 | 11117 | break; |
| 5d1634d7 | 11118 | |
| 721956f4 | 11119 | case ppc_stub_plt_call: |
| 794e51c0 | 11120 | case ppc_stub_plt_call_r2save: |
| e054468f | 11121 | if (stub_entry->h != NULL |
| b31867b6 AM |
11122 | && stub_entry->h->is_func_descriptor |
| 11123 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11124 | { |
| b31867b6 AM |
11125 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11126 | ||
| 11127 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11128 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11129 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11130 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11131 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11132 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11133 | } |
| 11134 | ||
| 721956f4 | 11135 | /* Now build the stub. */ |
| e054468f | 11136 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11137 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11138 | abort (); |
| 11139 | ||
| 33e44f2e | 11140 | plt = htab->elf.splt; |
| 25f23106 AM |
11141 | if (!htab->elf.dynamic_sections_created |
| 11142 | || stub_entry->h == NULL | |
| 11143 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11144 | plt = htab->elf.iplt; |
| e054468f AM |
11145 | |
| 11146 | dest += plt->output_offset + plt->output_section->vma; | |
| 11147 | ||
| 11148 | if (stub_entry->h == NULL | |
| 11149 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11150 | { | |
| 11151 | Elf_Internal_Rela rela; | |
| 11152 | bfd_byte *rl; | |
| 11153 | ||
| 11154 | rela.r_offset = dest; | |
| ee67d69a AM |
11155 | if (htab->opd_abi) |
| 11156 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11157 | else | |
| 11158 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11159 | rela.r_addend = (stub_entry->target_value |
| 11160 | + stub_entry->target_section->output_offset | |
| 11161 | + stub_entry->target_section->output_section->vma); | |
| 11162 | ||
| 33e44f2e AM |
11163 | rl = (htab->elf.irelplt->contents |
| 11164 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11165 | * sizeof (Elf64_External_Rela))); |
| 11166 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f | 11167 | stub_entry->plt_ent->plt.offset |= 1; |
| 82e66161 | 11168 | htab->local_ifunc_resolver = 1; |
| e054468f | 11169 | } |
| 176a0d42 AM |
11170 | |
| 11171 | off = (dest | |
| 06bcf541 | 11172 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11173 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11174 | |
| ad8e1ba5 | 11175 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11176 | { |
| 25f53a85 | 11177 | info->callbacks->einfo |
| 695344c0 | 11178 | /* xgettext:c-format */ |
| bc30df16 | 11179 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11180 | stub_entry->h != NULL |
| 11181 | ? stub_entry->h->elf.root.root.string | |
| 11182 | : "<local sym>"); | |
| 721956f4 | 11183 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11184 | htab->stub_error = TRUE; |
| 11185 | return FALSE; | |
| 721956f4 AM |
11186 | } |
| 11187 | ||
| e7d1c40c | 11188 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11189 | { |
| 11190 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11191 | ||
| 6f20ed8a AM |
11192 | stub_entry->group->stub_sec->size += pad; |
| 11193 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11194 | loc += pad; |
| 11195 | } | |
| 11196 | ||
| 176a0d42 AM |
11197 | r = NULL; |
| 11198 | if (info->emitrelocations) | |
| 11199 | { | |
| 6f20ed8a | 11200 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11201 | ((PPC_HA (off) != 0) |
| 11202 | + (htab->opd_abi | |
| e7d1c40c | 11203 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11204 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11205 | : 1))); | |
| 176a0d42 AM |
11206 | if (r == NULL) |
| 11207 | return FALSE; | |
| 6f20ed8a | 11208 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11209 | if (bfd_big_endian (info->output_bfd)) |
| 11210 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11211 | r[0].r_addend = dest; |
| 11212 | } | |
| a7f2871e AM |
11213 | if (stub_entry->h != NULL |
| 11214 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11215 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11216 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11217 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11218 | else |
| 794e51c0 | 11219 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11220 | break; |
| 11221 | ||
| a4b6fadd AM |
11222 | case ppc_stub_save_res: |
| 11223 | return TRUE; | |
| 11224 | ||
| 721956f4 AM |
11225 | default: |
| 11226 | BFD_FAIL (); | |
| b34976b6 | 11227 | return FALSE; |
| 721956f4 AM |
11228 | } |
| 11229 | ||
| 9e390558 | 11230 | stub_entry->group->stub_sec->size += p - loc; |
| 97b639ba | 11231 | |
| e7d1c40c | 11232 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11233 | { |
| 11234 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11235 | size_t len1, len2; |
| 11236 | char *name; | |
| 11237 | const char *const stub_str[] = { "long_branch", | |
| 11238 | "long_branch_r2off", | |
| 11239 | "plt_branch", | |
| 11240 | "plt_branch_r2off", | |
| 794e51c0 | 11241 | "plt_call", |
| ee75fd95 AM |
11242 | "plt_call" }; |
| 11243 | ||
| 11244 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11245 | len2 = strlen (stub_entry->root.string); | |
| 11246 | name = bfd_malloc (len1 + len2 + 2); | |
| 11247 | if (name == NULL) | |
| 11248 | return FALSE; | |
| 11249 | memcpy (name, stub_entry->root.string, 9); | |
| 11250 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11251 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11252 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11253 | if (h == NULL) |
| 11254 | return FALSE; | |
| 11255 | if (h->root.type == bfd_link_hash_new) | |
| 11256 | { | |
| 11257 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11258 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11259 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11260 | h->ref_regular = 1; |
| 11261 | h->def_regular = 1; | |
| 11262 | h->ref_regular_nonweak = 1; | |
| 11263 | h->forced_local = 1; | |
| 11264 | h->non_elf = 0; | |
| 2ec55de3 | 11265 | h->root.linker_def = 1; |
| 97b639ba AM |
11266 | } |
| 11267 | } | |
| 11268 | ||
| b34976b6 | 11269 | return TRUE; |
| 721956f4 AM |
11270 | } |
| 11271 | ||
| 11272 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11273 | we know stub section sizes, and select plt_branch stubs where | |
| 11274 | long_branch stubs won't do. */ | |
| 11275 | ||
| b34976b6 | 11276 | static bfd_boolean |
| 4ce794b7 | 11277 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11278 | { |
| 11279 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11280 | struct bfd_link_info *info; |
| 721956f4 AM |
11281 | struct ppc_link_hash_table *htab; |
| 11282 | bfd_vma off; | |
| 11283 | int size; | |
| 11284 | ||
| 11285 | /* Massage our args to the form they really have. */ | |
| 11286 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11287 | info = in_arg; |
| 11288 | ||
| 11289 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11290 | if (htab == NULL) |
| 11291 | return FALSE; | |
| 721956f4 | 11292 | |
| a4b6fadd AM |
11293 | if (stub_entry->h != NULL |
| 11294 | && stub_entry->h->save_res | |
| 11295 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11296 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11297 | { | |
| 11298 | /* Don't make stubs to out-of-line register save/restore | |
| 11299 | functions. Instead, emit copies of the functions. */ | |
| 11300 | stub_entry->group->needs_save_res = 1; | |
| 11301 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11302 | return TRUE; | |
| 11303 | } | |
| 11304 | ||
| 794e51c0 AM |
11305 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11306 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11307 | { |
| e054468f AM |
11308 | asection *plt; |
| 11309 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11310 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11311 | abort (); |
| 33e44f2e | 11312 | plt = htab->elf.splt; |
| 25f23106 AM |
11313 | if (!htab->elf.dynamic_sections_created |
| 11314 | || stub_entry->h == NULL | |
| 11315 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11316 | plt = htab->elf.iplt; |
| e054468f AM |
11317 | off += (plt->output_offset |
| 11318 | + plt->output_section->vma | |
| 06bcf541 | 11319 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11320 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11321 | |
| 794e51c0 | 11322 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11323 | if (stub_entry->h != NULL |
| 11324 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11325 | || stub_entry->h == htab->tls_get_addr) | |
| 11326 | && htab->params->tls_get_addr_opt | |
| 11327 | && (ALWAYS_EMIT_R2SAVE | |
| 11328 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11329 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11330 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11331 | ||
| e7d1c40c | 11332 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11333 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11334 | if (info->emitrelocations) |
| 11335 | { | |
| 6f20ed8a | 11336 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11337 | += ((PPC_HA (off) != 0) |
| 11338 | + (htab->opd_abi | |
| e7d1c40c | 11339 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11340 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11341 | : 1)); | |
| 6f20ed8a | 11342 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11343 | } |
| 721956f4 AM |
11344 | } |
| 11345 | else | |
| 11346 | { | |
| ad8e1ba5 AM |
11347 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11348 | variants. */ | |
| ac2df442 | 11349 | bfd_vma r2off = 0; |
| 6911b7dc | 11350 | bfd_vma local_off = 0; |
| ac2df442 | 11351 | |
| 721956f4 AM |
11352 | off = (stub_entry->target_value |
| 11353 | + stub_entry->target_section->output_offset | |
| 11354 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11355 | off -= (stub_entry->group->stub_sec->size |
| 11356 | + stub_entry->group->stub_sec->output_offset | |
| 11357 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11358 | |
| ad8e1ba5 AM |
11359 | /* Reset the stub type from the plt variant in case we now |
| 11360 | can reach with a shorter stub. */ | |
| 11361 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11362 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11363 | ||
| 11364 | size = 4; | |
| 11365 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11366 | { | |
| 25f53a85 | 11367 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11368 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11369 | { |
| 11370 | htab->stub_error = TRUE; | |
| 11371 | return FALSE; | |
| 11372 | } | |
| a7c49797 | 11373 | size = 8; |
| ac2df442 | 11374 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11375 | size += 4; |
| 11376 | if (PPC_LO (r2off) != 0) | |
| 11377 | size += 4; | |
| ac2df442 | 11378 | off -= size - 4; |
| ad8e1ba5 AM |
11379 | } |
| 11380 | ||
| 6911b7dc AM |
11381 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11382 | ||
| b9e5796b AM |
11383 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11384 | Do the same for -R objects without function descriptors. */ | |
| 11385 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11386 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11387 | && r2off == 0 |
| 11388 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11389 | { |
| 11390 | struct ppc_branch_hash_entry *br_entry; | |
| 11391 | ||
| 11392 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11393 | stub_entry->root.string + 9, | |
| b34976b6 | 11394 | TRUE, FALSE); |
| 721956f4 AM |
11395 | if (br_entry == NULL) |
| 11396 | { | |
| 8de848d8 | 11397 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11398 | stub_entry->root.string); |
| b34976b6 AM |
11399 | htab->stub_error = TRUE; |
| 11400 | return FALSE; | |
| 721956f4 AM |
11401 | } |
| 11402 | ||
| 11403 | if (br_entry->iter != htab->stub_iteration) | |
| 11404 | { | |
| 11405 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11406 | br_entry->offset = htab->brlt->size; |
| 11407 | htab->brlt->size += 8; | |
| 63bc6f6c | 11408 | |
| ee75fd95 | 11409 | if (htab->relbrlt != NULL) |
| eea6121a | 11410 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11411 | else if (info->emitrelocations) |
| 11412 | { | |
| 11413 | htab->brlt->reloc_count += 1; | |
| 11414 | htab->brlt->flags |= SEC_RELOC; | |
| 11415 | } | |
| 721956f4 | 11416 | } |
| ad8e1ba5 AM |
11417 | |
| 11418 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11419 | off = (br_entry->offset |
| 11420 | + htab->brlt->output_offset | |
| 11421 | + htab->brlt->output_section->vma | |
| 06bcf541 | 11422 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11423 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11424 | |
| 176a0d42 AM |
11425 | if (info->emitrelocations) |
| 11426 | { | |
| 6f20ed8a AM |
11427 | stub_entry->group->stub_sec->reloc_count |
| 11428 | += 1 + (PPC_HA (off) != 0); | |
| 11429 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11430 | } |
| 11431 | ||
| 00f412ee | 11432 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11433 | { |
| 11434 | size = 12; | |
| 176a0d42 | 11435 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11436 | size = 16; |
| 11437 | } | |
| 11438 | else | |
| 11439 | { | |
| 00f412ee | 11440 | size = 16; |
| 176a0d42 | 11441 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11442 | size += 4; |
| 11443 | ||
| 11444 | if (PPC_HA (r2off) != 0) | |
| 11445 | size += 4; | |
| 00f412ee AM |
11446 | if (PPC_LO (r2off) != 0) |
| 11447 | size += 4; | |
| ac2df442 | 11448 | } |
| 1be5d8d3 AM |
11449 | if (!htab->params->speculate_indirect_jumps) |
| 11450 | size += 8; | |
| 721956f4 | 11451 | } |
| 84f5d08e AM |
11452 | else if (info->emitrelocations) |
| 11453 | { | |
| 6f20ed8a AM |
11454 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11455 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11456 | } |
| 721956f4 AM |
11457 | } |
| 11458 | ||
| 6f20ed8a | 11459 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11460 | return TRUE; |
| 721956f4 AM |
11461 | } |
| 11462 | ||
| 11463 | /* Set up various things so that we can make a list of input sections | |
| 11464 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11465 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11466 | |
| 11467 | int | |
| e7d1c40c | 11468 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11469 | { |
| 6f20ed8a | 11470 | unsigned int id; |
| 721956f4 AM |
11471 | bfd_size_type amt; |
| 11472 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11473 | ||
| 4dfe6ac6 NC |
11474 | if (htab == NULL) |
| 11475 | return -1; | |
| 4c52953f | 11476 | |
| 6f20ed8a AM |
11477 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11478 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11479 | htab->sec_info = bfd_zmalloc (amt); | |
| 11480 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11481 | return -1; |
| 11482 | ||
| 3d6f9012 AM |
11483 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11484 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11485 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11486 | |
| 721956f4 AM |
11487 | return 1; |
| 11488 | } | |
| 11489 | ||
| 927be08e AM |
11490 | /* Set up for first pass at multitoc partitioning. */ |
| 11491 | ||
| 11492 | void | |
| 11493 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11494 | { | |
| 11495 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11496 | ||
| 1c865ab2 | 11497 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11498 | htab->toc_bfd = NULL; |
| 11499 | htab->toc_first_sec = NULL; | |
| 11500 | } | |
| 11501 | ||
| e717da7e AM |
11502 | /* The linker repeatedly calls this function for each TOC input section |
| 11503 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11504 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11505 | |
| 927be08e | 11506 | bfd_boolean |
| 4ce794b7 | 11507 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11508 | { |
| 11509 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11510 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11511 | |
| 4dfe6ac6 NC |
11512 | if (htab == NULL) |
| 11513 | return FALSE; | |
| 11514 | ||
| 927be08e | 11515 | if (!htab->second_toc_pass) |
| 4c52953f | 11516 | { |
| 927be08e | 11517 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11518 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11519 | ||
| 11520 | if (new_bfd) | |
| bf102f86 AM |
11521 | { |
| 11522 | htab->toc_bfd = isec->owner; | |
| 11523 | htab->toc_first_sec = isec; | |
| 11524 | } | |
| 927be08e | 11525 | |
| bf102f86 AM |
11526 | addr = isec->output_offset + isec->output_section->vma; |
| 11527 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11528 | limit = 0x80008000; |
| 11529 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11530 | limit = 0x10000; | |
| 11531 | if (off + isec->size > limit) | |
| bf102f86 AM |
11532 | { |
| 11533 | addr = (htab->toc_first_sec->output_offset | |
| 11534 | + htab->toc_first_sec->output_section->vma); | |
| 11535 | htab->toc_curr = addr; | |
| a27e685f | 11536 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11537 | } |
| 99877b66 | 11538 | |
| 927be08e AM |
11539 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11540 | for the input section to be the offset relative to the | |
| 11541 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11542 | offset allows us to move the toc as a whole without | |
| 11543 | recalculating input elf_gp. */ | |
| 06bcf541 | 11544 | off = htab->toc_curr - elf_gp (info->output_bfd); |
| 927be08e AM |
11545 | off += TOC_BASE_OFF; |
| 11546 | ||
| 11547 | /* Die if someone uses a linker script that doesn't keep input | |
| 11548 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11549 | if (new_bfd |
| 11550 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11551 | && elf_gp (isec->owner) != off) |
| 11552 | return FALSE; | |
| 11553 | ||
| 11554 | elf_gp (isec->owner) = off; | |
| 11555 | return TRUE; | |
| 4c52953f | 11556 | } |
| 927be08e AM |
11557 | |
| 11558 | /* During the second pass toc_first_sec points to the start of | |
| 11559 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11560 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11561 | if (htab->toc_bfd == isec->owner) | |
| 11562 | return TRUE; | |
| 11563 | htab->toc_bfd = isec->owner; | |
| 11564 | ||
| 11565 | if (htab->toc_first_sec == NULL | |
| 11566 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11567 | { | |
| 11568 | htab->toc_curr = elf_gp (isec->owner); | |
| 11569 | htab->toc_first_sec = isec; | |
| 11570 | } | |
| 11571 | addr = (htab->toc_first_sec->output_offset | |
| 11572 | + htab->toc_first_sec->output_section->vma); | |
| 06bcf541 | 11573 | off = addr - elf_gp (info->output_bfd) + TOC_BASE_OFF; |
| 927be08e AM |
11574 | elf_gp (isec->owner) = off; |
| 11575 | ||
| 11576 | return TRUE; | |
| ad8e1ba5 AM |
11577 | } |
| 11578 | ||
| 927be08e AM |
11579 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11580 | symbol H. */ | |
| 11581 | ||
| 11582 | static bfd_boolean | |
| 11583 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11584 | { | |
| 11585 | if (h->root.type == bfd_link_hash_indirect) | |
| 11586 | return TRUE; | |
| 11587 | ||
| 927be08e AM |
11588 | merge_got_entries (&h->got.glist); |
| 11589 | ||
| 11590 | return TRUE; | |
| 11591 | } | |
| 11592 | ||
| 11593 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11594 | symbol H. */ | |
| 11595 | ||
| 11596 | static bfd_boolean | |
| 11597 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11598 | { | |
| 11599 | struct got_entry *gent; | |
| 11600 | ||
| 11601 | if (h->root.type == bfd_link_hash_indirect) | |
| 11602 | return TRUE; | |
| 11603 | ||
| 927be08e AM |
11604 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11605 | if (!gent->is_indirect) | |
| 11606 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11607 | return TRUE; | |
| 11608 | } | |
| 11609 | ||
| 11610 | /* Called on the first multitoc pass after the last call to | |
| 11611 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11612 | entries. */ | |
| 11613 | ||
| 11614 | bfd_boolean | |
| 11615 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11616 | { |
| 11617 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11618 | struct bfd *ibfd, *ibfd2; |
| 11619 | bfd_boolean done_something; | |
| 11620 | ||
| 11621 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11622 | |
| 7865406b AM |
11623 | if (!htab->do_multi_toc) |
| 11624 | return FALSE; | |
| 11625 | ||
| d0fae19d | 11626 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11627 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11628 | ||
| 11629 | /* And tlsld_got. */ | |
| c72f2fb2 | 11630 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11631 | { |
| 11632 | struct got_entry *ent, *ent2; | |
| 11633 | ||
| 11634 | if (!is_ppc64_elf (ibfd)) | |
| 11635 | continue; | |
| 11636 | ||
| 11637 | ent = ppc64_tlsld_got (ibfd); | |
| 11638 | if (!ent->is_indirect | |
| 11639 | && ent->got.offset != (bfd_vma) -1) | |
| 11640 | { | |
| c72f2fb2 | 11641 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11642 | { |
| 11643 | if (!is_ppc64_elf (ibfd2)) | |
| 11644 | continue; | |
| 11645 | ||
| 11646 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11647 | if (!ent2->is_indirect | |
| 11648 | && ent2->got.offset != (bfd_vma) -1 | |
| 11649 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11650 | { | |
| 11651 | ent2->is_indirect = TRUE; | |
| 11652 | ent2->got.ent = ent; | |
| 11653 | } | |
| 11654 | } | |
| 11655 | } | |
| 11656 | } | |
| 11657 | ||
| 11658 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11659 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11660 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11661 | htab->got_reli_size = 0; |
| 11662 | ||
| c72f2fb2 | 11663 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11664 | { |
| 11665 | asection *got, *relgot; | |
| 11666 | ||
| 11667 | if (!is_ppc64_elf (ibfd)) | |
| 11668 | continue; | |
| 11669 | ||
| 11670 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11671 | if (got != NULL) | |
| 11672 | { | |
| 11673 | got->rawsize = got->size; | |
| 11674 | got->size = 0; | |
| 11675 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11676 | relgot->rawsize = relgot->size; | |
| 11677 | relgot->size = 0; | |
| 11678 | } | |
| 11679 | } | |
| 11680 | ||
| 11681 | /* Now reallocate the got, local syms first. We don't need to | |
| 11682 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11683 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11684 | { |
| 11685 | struct got_entry **lgot_ents; | |
| 11686 | struct got_entry **end_lgot_ents; | |
| 11687 | struct plt_entry **local_plt; | |
| 11688 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11689 | unsigned char *lgot_masks; |
| 927be08e AM |
11690 | bfd_size_type locsymcount; |
| 11691 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11692 | asection *s; |
| 927be08e AM |
11693 | |
| 11694 | if (!is_ppc64_elf (ibfd)) | |
| 11695 | continue; | |
| 11696 | ||
| 11697 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11698 | if (!lgot_ents) | |
| 11699 | continue; | |
| 11700 | ||
| 11701 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11702 | locsymcount = symtab_hdr->sh_info; | |
| 11703 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11704 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11705 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11706 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11707 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11708 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11709 | { | |
| 11710 | struct got_entry *ent; | |
| 11711 | ||
| 11712 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11713 | { |
| 19e08130 AM |
11714 | unsigned int ent_size = 8; |
| 11715 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11716 | ||
| d0fae19d AM |
11717 | ent->got.offset = s->size; |
| 11718 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11719 | { |
| 19e08130 AM |
11720 | ent_size *= 2; |
| 11721 | rel_size *= 2; | |
| 11722 | } | |
| 11723 | s->size += ent_size; | |
| 11724 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11725 | { | |
| 33e44f2e | 11726 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11727 | htab->got_reli_size += rel_size; |
| 11728 | } | |
| 0e1862bb | 11729 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11730 | { |
| 11731 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11732 | srel->size += rel_size; | |
| d0fae19d AM |
11733 | } |
| 11734 | } | |
| 927be08e AM |
11735 | } |
| 11736 | } | |
| 11737 | ||
| 11738 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11739 | ||
| c72f2fb2 | 11740 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11741 | { |
| 11742 | struct got_entry *ent; | |
| 11743 | ||
| 11744 | if (!is_ppc64_elf (ibfd)) | |
| 11745 | continue; | |
| 11746 | ||
| 11747 | ent = ppc64_tlsld_got (ibfd); | |
| 11748 | if (!ent->is_indirect | |
| 11749 | && ent->got.offset != (bfd_vma) -1) | |
| 11750 | { | |
| 11751 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11752 | ent->got.offset = s->size; | |
| 11753 | s->size += 16; | |
| 0e1862bb | 11754 | if (bfd_link_pic (info)) |
| 927be08e AM |
11755 | { |
| 11756 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11757 | srel->size += sizeof (Elf64_External_Rela); | |
| 11758 | } | |
| 11759 | } | |
| 11760 | } | |
| 11761 | ||
| 33e44f2e | 11762 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11763 | if (!done_something) |
| c72f2fb2 | 11764 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11765 | { |
| 11766 | asection *got; | |
| 11767 | ||
| 11768 | if (!is_ppc64_elf (ibfd)) | |
| 11769 | continue; | |
| 11770 | ||
| 11771 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11772 | if (got != NULL) | |
| 11773 | { | |
| 11774 | done_something = got->rawsize != got->size; | |
| 11775 | if (done_something) | |
| 11776 | break; | |
| 11777 | } | |
| 11778 | } | |
| 11779 | ||
| 11780 | if (done_something) | |
| e7d1c40c | 11781 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11782 | |
| 11783 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11784 | on input sections. */ | |
| 11785 | htab->toc_bfd = NULL; | |
| 11786 | htab->toc_first_sec = NULL; | |
| 11787 | htab->second_toc_pass = TRUE; | |
| 11788 | return done_something; | |
| 11789 | } | |
| 11790 | ||
| 11791 | /* Called after second pass of multitoc partitioning. */ | |
| 11792 | ||
| 11793 | void | |
| 11794 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11795 | { | |
| 11796 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11797 | ||
| 11798 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11799 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11800 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11801 | } |
| 11802 | ||
| 9b5ecbd0 AM |
11803 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11804 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11805 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11806 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11807 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11808 | for a stub was detected. If called from the top level, a return of | |
| 11809 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11810 | |
| 11811 | static int | |
| 4ce794b7 | 11812 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11813 | { |
| 9b5ecbd0 | 11814 | int ret; |
| 70cc837d AM |
11815 | |
| 11816 | /* Mark this section as checked. */ | |
| 11817 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11818 | |
| 772119ce AM |
11819 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11820 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11821 | return 0; | |
| 11822 | ||
| eea6121a | 11823 | if (isec->size == 0) |
| 082c50f8 AM |
11824 | return 0; |
| 11825 | ||
| 4c52953f AM |
11826 | if (isec->output_section == NULL) |
| 11827 | return 0; | |
| 11828 | ||
| 4c52953f | 11829 | ret = 0; |
| 70cc837d | 11830 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11831 | { |
| 70cc837d AM |
11832 | Elf_Internal_Rela *relstart, *rel; |
| 11833 | Elf_Internal_Sym *local_syms; | |
| 11834 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11835 | |
| 70cc837d AM |
11836 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11837 | info->keep_memory); | |
| 11838 | if (relstart == NULL) | |
| 11839 | return -1; | |
| 90aecf7a | 11840 | |
| 70cc837d AM |
11841 | /* Look for branches to outside of this section. */ |
| 11842 | local_syms = NULL; | |
| 11843 | htab = ppc_hash_table (info); | |
| 11844 | if (htab == NULL) | |
| 11845 | return -1; | |
| 4c52953f | 11846 | |
| 70cc837d | 11847 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11848 | { |
| 70cc837d AM |
11849 | enum elf_ppc64_reloc_type r_type; |
| 11850 | unsigned long r_symndx; | |
| 11851 | struct elf_link_hash_entry *h; | |
| 11852 | struct ppc_link_hash_entry *eh; | |
| 11853 | Elf_Internal_Sym *sym; | |
| 11854 | asection *sym_sec; | |
| 11855 | struct _opd_sec_data *opd; | |
| 11856 | bfd_vma sym_value; | |
| 11857 | bfd_vma dest; | |
| 11858 | ||
| 11859 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11860 | if (r_type != R_PPC64_REL24 | |
| 11861 | && r_type != R_PPC64_REL14 | |
| 11862 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11863 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11864 | continue; | |
| 4c52953f | 11865 | |
| 70cc837d AM |
11866 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11867 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11868 | isec->owner)) | |
| 4c52953f | 11869 | { |
| 70cc837d AM |
11870 | ret = -1; |
| 11871 | break; | |
| 11872 | } | |
| 4c52953f | 11873 | |
| 70cc837d AM |
11874 | /* Calls to dynamic lib functions go through a plt call stub |
| 11875 | that uses r2. */ | |
| 11876 | eh = (struct ppc_link_hash_entry *) h; | |
| 11877 | if (eh != NULL | |
| 11878 | && (eh->elf.plt.plist != NULL | |
| 11879 | || (eh->oh != NULL | |
| 11880 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11881 | { | |
| 11882 | ret = 1; | |
| 11883 | break; | |
| 4c52953f AM |
11884 | } |
| 11885 | ||
| 70cc837d AM |
11886 | if (sym_sec == NULL) |
| 11887 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11888 | continue; |
| 4c52953f | 11889 | |
| 70cc837d AM |
11890 | /* Assume branches to other sections not included in the |
| 11891 | link need stubs too, to cover -R and absolute syms. */ | |
| 11892 | if (sym_sec->output_section == NULL) | |
| 11893 | { | |
| 11894 | ret = 1; | |
| 11895 | break; | |
| 11896 | } | |
| 4c52953f | 11897 | |
| 70cc837d AM |
11898 | if (h == NULL) |
| 11899 | sym_value = sym->st_value; | |
| 11900 | else | |
| 11901 | { | |
| 11902 | if (h->root.type != bfd_link_hash_defined | |
| 11903 | && h->root.type != bfd_link_hash_defweak) | |
| 11904 | abort (); | |
| 11905 | sym_value = h->root.u.def.value; | |
| 11906 | } | |
| 11907 | sym_value += rel->r_addend; | |
| 4c52953f | 11908 | |
| 70cc837d AM |
11909 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11910 | opd = get_opd_info (sym_sec); | |
| 11911 | if (opd != NULL) | |
| 11912 | { | |
| 11913 | if (h == NULL && opd->adjust != NULL) | |
| 11914 | { | |
| 11915 | long adjust; | |
| 4c52953f | 11916 | |
| 92a9c616 | 11917 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11918 | if (adjust == -1) |
| 11919 | /* Assume deleted functions won't ever be called. */ | |
| 11920 | continue; | |
| 11921 | sym_value += adjust; | |
| 11922 | } | |
| 4c52953f | 11923 | |
| aef36ac1 AM |
11924 | dest = opd_entry_value (sym_sec, sym_value, |
| 11925 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11926 | if (dest == (bfd_vma) -1) |
| 11927 | continue; | |
| 11928 | } | |
| 11929 | else | |
| 11930 | dest = (sym_value | |
| 11931 | + sym_sec->output_offset | |
| 11932 | + sym_sec->output_section->vma); | |
| 4c52953f | 11933 | |
| 70cc837d AM |
11934 | /* Ignore branch to self. */ |
| 11935 | if (sym_sec == isec) | |
| 11936 | continue; | |
| 4c52953f | 11937 | |
| 70cc837d AM |
11938 | /* If the called function uses the toc, we need a stub. */ |
| 11939 | if (sym_sec->has_toc_reloc | |
| 11940 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11941 | { |
| 70cc837d | 11942 | ret = 1; |
| 4c52953f AM |
11943 | break; |
| 11944 | } | |
| 70cc837d AM |
11945 | |
| 11946 | /* Assume any branch that needs a long branch stub might in fact | |
| 11947 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11948 | else if (dest - (isec->output_offset | |
| 11949 | + isec->output_section->vma | |
| 6911b7dc AM |
11950 | + rel->r_offset) + (1 << 25) |
| 11951 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11952 | ? h->other | |
| 11953 | : sym->st_other)) | |
| 4c52953f | 11954 | { |
| 70cc837d AM |
11955 | ret = 1; |
| 11956 | break; | |
| 11957 | } | |
| 11958 | ||
| 11959 | /* If calling back to a section in the process of being | |
| 11960 | tested, we can't say for sure that no toc adjusting stubs | |
| 11961 | are needed, so don't return zero. */ | |
| 11962 | else if (sym_sec->call_check_in_progress) | |
| 11963 | ret = 2; | |
| 11964 | ||
| 11965 | /* Branches to another section that itself doesn't have any TOC | |
| 11966 | references are OK. Recursively call ourselves to check. */ | |
| 11967 | else if (!sym_sec->call_check_done) | |
| 11968 | { | |
| 11969 | int recur; | |
| 11970 | ||
| 11971 | /* Mark current section as indeterminate, so that other | |
| 11972 | sections that call back to current won't be marked as | |
| 11973 | known. */ | |
| 11974 | isec->call_check_in_progress = 1; | |
| 11975 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11976 | isec->call_check_in_progress = 0; | |
| 11977 | ||
| 4c52953f AM |
11978 | if (recur != 0) |
| 11979 | { | |
| 70cc837d AM |
11980 | ret = recur; |
| 11981 | if (recur != 2) | |
| 11982 | break; | |
| 4c52953f AM |
11983 | } |
| 11984 | } | |
| 4c52953f | 11985 | } |
| 70cc837d AM |
11986 | |
| 11987 | if (local_syms != NULL | |
| 11988 | && (elf_symtab_hdr (isec->owner).contents | |
| 11989 | != (unsigned char *) local_syms)) | |
| 11990 | free (local_syms); | |
| 11991 | if (elf_section_data (isec)->relocs != relstart) | |
| 11992 | free (relstart); | |
| 9b5ecbd0 AM |
11993 | } |
| 11994 | ||
| 70cc837d AM |
11995 | if ((ret & 1) == 0 |
| 11996 | && isec->map_head.s != NULL | |
| 11997 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11998 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11999 | { | |
| 12000 | if (isec->map_head.s->has_toc_reloc | |
| 12001 | || isec->map_head.s->makes_toc_func_call) | |
| 12002 | ret = 1; | |
| 12003 | else if (!isec->map_head.s->call_check_done) | |
| 12004 | { | |
| 12005 | int recur; | |
| 12006 | isec->call_check_in_progress = 1; | |
| 12007 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 12008 | isec->call_check_in_progress = 0; | |
| 12009 | if (recur != 0) | |
| 12010 | ret = recur; | |
| 12011 | } | |
| 12012 | } | |
| 12013 | ||
| 12014 | if (ret == 1) | |
| 12015 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 12016 | |
| 9b5ecbd0 AM |
12017 | return ret; |
| 12018 | } | |
| 12019 | ||
| 721956f4 AM |
12020 | /* The linker repeatedly calls this function for each input section, |
| 12021 | in the order that input sections are linked into output sections. | |
| 12022 | Build lists of input sections to determine groupings between which | |
| 12023 | we may insert linker stubs. */ | |
| 12024 | ||
| 9b5ecbd0 | 12025 | bfd_boolean |
| 4ce794b7 | 12026 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12027 | { |
| 12028 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12029 | ||
| 4dfe6ac6 NC |
12030 | if (htab == NULL) |
| 12031 | return FALSE; | |
| 12032 | ||
| 734b6cf9 | 12033 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12034 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12035 | { |
| 3d6f9012 AM |
12036 | /* This happens to make the list in reverse order, |
| 12037 | which is what we want. */ | |
| 6f20ed8a AM |
12038 | htab->sec_info[isec->id].u.list |
| 12039 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12040 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12041 | } |
| ad8e1ba5 | 12042 | |
| 4c52953f | 12043 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12044 | { |
| 8b974ba3 AM |
12045 | /* Analyse sections that aren't already flagged as needing a |
| 12046 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12047 | .fixup contains branches, but only back to the function that | |
| 12048 | hit an exception. */ | |
| 12049 | if (!(isec->has_toc_reloc | |
| 12050 | || (isec->flags & SEC_CODE) == 0 | |
| 12051 | || strcmp (isec->name, ".fixup") == 0 | |
| 12052 | || isec->call_check_done)) | |
| 12053 | { | |
| 12054 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12055 | return FALSE; |
| 8b974ba3 AM |
12056 | } |
| 12057 | /* Make all sections use the TOC assigned for this object file. | |
| 12058 | This will be wrong for pasted sections; We fix that in | |
| 12059 | check_pasted_section(). */ | |
| 12060 | if (elf_gp (isec->owner) != 0) | |
| 12061 | htab->toc_curr = elf_gp (isec->owner); | |
| 12062 | } | |
| 12063 | ||
| 6f20ed8a | 12064 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12065 | return TRUE; |
| 721956f4 AM |
12066 | } |
| 12067 | ||
| 70cc837d AM |
12068 | /* Check that all .init and .fini sections use the same toc, if they |
| 12069 | have toc relocs. */ | |
| 12070 | ||
| 12071 | static bfd_boolean | |
| 12072 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12073 | { | |
| 12074 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12075 | ||
| 12076 | if (o != NULL) | |
| 12077 | { | |
| 12078 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12079 | bfd_vma toc_off = 0; | |
| 12080 | asection *i; | |
| 12081 | ||
| 12082 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12083 | if (i->has_toc_reloc) | |
| 12084 | { | |
| 12085 | if (toc_off == 0) | |
| 6f20ed8a AM |
12086 | toc_off = htab->sec_info[i->id].toc_off; |
| 12087 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12088 | return FALSE; |
| 12089 | } | |
| 6683a28d AM |
12090 | |
| 12091 | if (toc_off == 0) | |
| 12092 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12093 | if (i->makes_toc_func_call) | |
| 12094 | { | |
| 6f20ed8a | 12095 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12096 | break; |
| 12097 | } | |
| 12098 | ||
| 70cc837d AM |
12099 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12100 | if (toc_off != 0) | |
| 12101 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12102 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12103 | } |
| 12104 | return TRUE; | |
| 12105 | } | |
| 12106 | ||
| 12107 | bfd_boolean | |
| 12108 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12109 | { | |
| 12110 | return (check_pasted_section (info, ".init") | |
| 12111 | & check_pasted_section (info, ".fini")); | |
| 12112 | } | |
| 12113 | ||
| 721956f4 AM |
12114 | /* See whether we can group stub sections together. Grouping stub |
| 12115 | sections may result in fewer stubs. More importantly, we need to | |
| 12116 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12117 | .fini output sections respectively, because glibc splits the | |
| 12118 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12119 | the middle of a function is not a good idea. */ | |
| 12120 | ||
| 6f20ed8a AM |
12121 | static bfd_boolean |
| 12122 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12123 | bfd_size_type stub_group_size, |
| 12124 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12125 | { |
| 6f20ed8a AM |
12126 | struct ppc_link_hash_table *htab; |
| 12127 | asection *osec; | |
| 7c8fe5c4 AM |
12128 | bfd_boolean suppress_size_errors; |
| 12129 | ||
| 6f20ed8a AM |
12130 | htab = ppc_hash_table (info); |
| 12131 | if (htab == NULL) | |
| 12132 | return FALSE; | |
| 12133 | ||
| 7c8fe5c4 | 12134 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12135 | if (stub_group_size == 1) |
| 12136 | { | |
| 12137 | /* Default values. */ | |
| 12138 | if (stubs_always_before_branch) | |
| 09f92717 | 12139 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12140 | else |
| 09f92717 | 12141 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12142 | suppress_size_errors = TRUE; |
| 12143 | } | |
| 12144 | ||
| 6f20ed8a | 12145 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12146 | { |
| 6f20ed8a AM |
12147 | asection *tail; |
| 12148 | ||
| 12149 | if (osec->id >= htab->sec_info_arr_size) | |
| 12150 | continue; | |
| 12151 | ||
| 12152 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12153 | while (tail != NULL) |
| 721956f4 | 12154 | { |
| 734b6cf9 AM |
12155 | asection *curr; |
| 12156 | asection *prev; | |
| 12157 | bfd_size_type total; | |
| 12158 | bfd_boolean big_sec; | |
| 12159 | bfd_vma curr_toc; | |
| 6f20ed8a | 12160 | struct map_stub *group; |
| 09f92717 | 12161 | bfd_size_type group_size; |
| 734b6cf9 AM |
12162 | |
| 12163 | curr = tail; | |
| eea6121a | 12164 | total = tail->size; |
| 09f92717 AM |
12165 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12166 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12167 | ? stub_group_size >> 10 : stub_group_size); | |
| 12168 | ||
| 12169 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12170 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12171 | /* xgettext:c-format */ |
| 4eca0228 AM |
12172 | _bfd_error_handler (_("%B section %A exceeds stub group size"), |
| 12173 | tail->owner, tail); | |
| 6f20ed8a | 12174 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12175 | |
| 6f20ed8a | 12176 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12177 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12178 | < (ppc64_elf_section_data (prev) != NULL |
| 12179 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12180 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12181 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12182 | curr = prev; |
| 12183 | ||
| 12184 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12185 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12186 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12187 | group_size, in which case we may be toast.) We should |
| 12188 | really be keeping track of the total size of stubs added | |
| 12189 | here, as stubs contribute to the final output section | |
| 12190 | size. That's a little tricky, and this way will only | |
| 12191 | break if stubs added make the total size more than 2^25, | |
| 12192 | ie. for the default stub_group_size, if stubs total more | |
| 12193 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12194 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12195 | if (group == NULL) | |
| 12196 | return FALSE; | |
| 12197 | group->link_sec = curr; | |
| 12198 | group->stub_sec = NULL; | |
| a4b6fadd | 12199 | group->needs_save_res = 0; |
| d4aaa2a0 | 12200 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12201 | group->next = htab->group; |
| 12202 | htab->group = group; | |
| 734b6cf9 | 12203 | do |
| 721956f4 | 12204 | { |
| 6f20ed8a | 12205 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12206 | /* Set up this stub group. */ |
| 6f20ed8a | 12207 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12208 | } |
| 734b6cf9 AM |
12209 | while (tail != curr && (tail = prev) != NULL); |
| 12210 | ||
| 09f92717 | 12211 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12212 | bytes before the stub section can be handled by it too. |
| 12213 | Don't do this if we have a really large section after the | |
| 12214 | stubs, as adding more stubs increases the chance that | |
| 12215 | branches may not reach into the stub section. */ | |
| 12216 | if (!stubs_always_before_branch && !big_sec) | |
| 12217 | { | |
| 12218 | total = 0; | |
| 12219 | while (prev != NULL | |
| 12220 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12221 | < (ppc64_elf_section_data (prev) != NULL |
| 12222 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12223 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12224 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12225 | { |
| 12226 | tail = prev; | |
| 6f20ed8a AM |
12227 | prev = htab->sec_info[tail->id].u.list; |
| 12228 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12229 | } |
| 12230 | } | |
| 12231 | tail = prev; | |
| 721956f4 AM |
12232 | } |
| 12233 | } | |
| 6f20ed8a | 12234 | return TRUE; |
| 721956f4 AM |
12235 | } |
| 12236 | ||
| 58d180e8 AM |
12237 | static const unsigned char glink_eh_frame_cie[] = |
| 12238 | { | |
| 12239 | 0, 0, 0, 16, /* length. */ | |
| 12240 | 0, 0, 0, 0, /* id. */ | |
| 12241 | 1, /* CIE version. */ | |
| 12242 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12243 | 4, /* Code alignment. */ | |
| 12244 | 0x78, /* Data alignment. */ | |
| 12245 | 65, /* RA reg. */ | |
| 12246 | 1, /* Augmentation size. */ | |
| 12247 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12248 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12249 | }; |
| 12250 | ||
| d4aaa2a0 AM |
12251 | static size_t |
| 12252 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12253 | { | |
| 12254 | size_t this_size = 17; | |
| 12255 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12256 | { | |
| 12257 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12258 | if (to_bctrl < 64) | |
| 12259 | this_size += 1; | |
| 12260 | else if (to_bctrl < 256) | |
| 12261 | this_size += 2; | |
| 12262 | else if (to_bctrl < 65536) | |
| 12263 | this_size += 3; | |
| 12264 | else | |
| 12265 | this_size += 5; | |
| 12266 | this_size += 6; | |
| 12267 | } | |
| 12268 | this_size = (this_size + align - 1) & -align; | |
| 12269 | return this_size; | |
| 12270 | } | |
| 12271 | ||
| d969d15f AM |
12272 | /* Stripping output sections is normally done before dynamic section |
| 12273 | symbols have been allocated. This function is called later, and | |
| 12274 | handles cases like htab->brlt which is mapped to its own output | |
| 12275 | section. */ | |
| 12276 | ||
| 12277 | static void | |
| 12278 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12279 | { | |
| 12280 | if (isec->size == 0 | |
| 12281 | && isec->output_section->size == 0 | |
| 53d8967a | 12282 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12283 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12284 | isec->output_section) | |
| 12285 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12286 | { | |
| 12287 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12288 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12289 | info->output_bfd->section_count--; | |
| 12290 | } | |
| 12291 | } | |
| 12292 | ||
| 721956f4 AM |
12293 | /* Determine and set the size of the stub section for a final link. |
| 12294 | ||
| 12295 | The basic idea here is to examine all the relocations looking for | |
| 12296 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12297 | instruction. */ | |
| 12298 | ||
| b34976b6 | 12299 | bfd_boolean |
| e7d1c40c | 12300 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12301 | { |
| 12302 | bfd_size_type stub_group_size; | |
| b34976b6 | 12303 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12304 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12305 | ||
| 4dfe6ac6 NC |
12306 | if (htab == NULL) |
| 12307 | return FALSE; | |
| 12308 | ||
| 0e1862bb | 12309 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12310 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12311 | if (!htab->opd_abi) |
| e7d1c40c AM |
12312 | htab->params->plt_thread_safe = 0; |
| 12313 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12314 | { |
| e2458743 | 12315 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12316 | { |
| 12317 | "pthread_create", | |
| 12318 | /* libstdc++ */ | |
| 12319 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12320 | /* librt */ | |
| 12321 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12322 | "mq_notify", "create_timer", | |
| 12323 | /* libanl */ | |
| 12324 | "getaddrinfo_a", | |
| 12325 | /* libgomp */ | |
| 2300b5a1 | 12326 | "GOMP_parallel", |
| 794e51c0 | 12327 | "GOMP_parallel_start", |
| 2300b5a1 | 12328 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12329 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12330 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12331 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12332 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12333 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12334 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12335 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12336 | "GOMP_parallel_sections", |
| 68ffbac6 | 12337 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12338 | /* libgo */ |
| 12339 | "__go_go", | |
| 794e51c0 AM |
12340 | }; |
| 12341 | unsigned i; | |
| 12342 | ||
| a4b6fadd | 12343 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12344 | { |
| 12345 | struct elf_link_hash_entry *h; | |
| 12346 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12347 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12348 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12349 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12350 | break; |
| 12351 | } | |
| 12352 | } | |
| e7d1c40c AM |
12353 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12354 | if (htab->params->group_size < 0) | |
| 12355 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12356 | else |
| e7d1c40c | 12357 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12358 | |
| 6f20ed8a AM |
12359 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12360 | return FALSE; | |
| 721956f4 | 12361 | |
| c9301e31 AM |
12362 | #define STUB_SHRINK_ITER 20 |
| 12363 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12364 | exit on a stub section shrinking. This is to break out of a | |
| 12365 | pathological case where adding stubs on one iteration decreases | |
| 12366 | section gaps (perhaps due to alignment), which then requires | |
| 12367 | fewer or smaller stubs on the next iteration. */ | |
| 12368 | ||
| 721956f4 AM |
12369 | while (1) |
| 12370 | { | |
| 12371 | bfd *input_bfd; | |
| 12372 | unsigned int bfd_indx; | |
| a4b6fadd | 12373 | struct map_stub *group; |
| 721956f4 AM |
12374 | |
| 12375 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12376 | |
| 12377 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12378 | input_bfd != NULL; | |
| c72f2fb2 | 12379 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12380 | { |
| 12381 | Elf_Internal_Shdr *symtab_hdr; | |
| 12382 | asection *section; | |
| 6cdc0ccc | 12383 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12384 | |
| 0c8d6e5c | 12385 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12386 | continue; |
| 12387 | ||
| 721956f4 | 12388 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12389 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12390 | if (symtab_hdr->sh_info == 0) |
| 12391 | continue; | |
| 12392 | ||
| 721956f4 AM |
12393 | /* Walk over each section attached to the input bfd. */ |
| 12394 | for (section = input_bfd->sections; | |
| 12395 | section != NULL; | |
| 12396 | section = section->next) | |
| 12397 | { | |
| 721956f4 | 12398 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12399 | |
| 12400 | /* If there aren't any relocs, then there's nothing more | |
| 12401 | to do. */ | |
| 12402 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12403 | || (section->flags & SEC_ALLOC) == 0 |
| 12404 | || (section->flags & SEC_LOAD) == 0 | |
| 12405 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12406 | || section->reloc_count == 0) |
| 12407 | continue; | |
| 12408 | ||
| 12409 | /* If this section is a link-once section that will be | |
| 12410 | discarded, then don't create any stubs. */ | |
| 12411 | if (section->output_section == NULL | |
| 927be08e | 12412 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12413 | continue; |
| 12414 | ||
| 1e2f5b6e AM |
12415 | /* Get the relocs. */ |
| 12416 | internal_relocs | |
| 4ce794b7 | 12417 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12418 | info->keep_memory); |
| 721956f4 | 12419 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12420 | goto error_ret_free_local; |
| 721956f4 AM |
12421 | |
| 12422 | /* Now examine each relocation. */ | |
| 12423 | irela = internal_relocs; | |
| 12424 | irelaend = irela + section->reloc_count; | |
| 12425 | for (; irela < irelaend; irela++) | |
| 12426 | { | |
| 4ce794b7 AM |
12427 | enum elf_ppc64_reloc_type r_type; |
| 12428 | unsigned int r_indx; | |
| 721956f4 AM |
12429 | enum ppc_stub_type stub_type; |
| 12430 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12431 | asection *sym_sec, *code_sec; |
| e054468f | 12432 | bfd_vma sym_value, code_value; |
| 721956f4 | 12433 | bfd_vma destination; |
| 6911b7dc | 12434 | unsigned long local_off; |
| 8843416a | 12435 | bfd_boolean ok_dest; |
| 721956f4 | 12436 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12437 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12438 | struct elf_link_hash_entry *h; |
| 12439 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12440 | char *stub_name; |
| 12441 | const asection *id_sec; | |
| 74f0fb50 | 12442 | struct _opd_sec_data *opd; |
| e054468f | 12443 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12444 | |
| 12445 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12446 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12447 | ||
| 4ce794b7 | 12448 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12449 | { |
| 12450 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12451 | goto error_ret_free_internal; |
| 721956f4 AM |
12452 | } |
| 12453 | ||
| 12454 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12455 | if (r_type != R_PPC64_REL24 |
| 12456 | && r_type != R_PPC64_REL14 | |
| 12457 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12458 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12459 | continue; |
| 12460 | ||
| 12461 | /* Now determine the call target, its name, value, | |
| 12462 | section. */ | |
| 411e1bfb AM |
12463 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12464 | r_indx, input_bfd)) | |
| 12465 | goto error_ret_free_internal; | |
| 12466 | hash = (struct ppc_link_hash_entry *) h; | |
| 12467 | ||
| 8843416a | 12468 | ok_dest = FALSE; |
| 8387904d | 12469 | fdh = NULL; |
| 7fe2b9a6 | 12470 | sym_value = 0; |
| 411e1bfb | 12471 | if (hash == NULL) |
| 721956f4 | 12472 | { |
| 411e1bfb | 12473 | sym_value = sym->st_value; |
| c27b8c2a AM |
12474 | if (sym_sec != NULL |
| 12475 | && sym_sec->output_section != NULL) | |
| 12476 | ok_dest = TRUE; | |
| 721956f4 | 12477 | } |
| 7fe2b9a6 AM |
12478 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12479 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12480 | { | |
| 12481 | sym_value = hash->elf.root.u.def.value; | |
| 12482 | if (sym_sec->output_section != NULL) | |
| 12483 | ok_dest = TRUE; | |
| 12484 | } | |
| 12485 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12486 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12487 | { |
| 99877b66 | 12488 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12489 | use the func descriptor sym instead if it is |
| 12490 | defined. */ | |
| ceb1f1ef | 12491 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12492 | && hash->oh != NULL) |
| 8387904d | 12493 | { |
| 8c5b4e52 | 12494 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12495 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12496 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12497 | { | |
| 12498 | sym_sec = fdh->elf.root.u.def.section; | |
| 12499 | sym_value = fdh->elf.root.u.def.value; | |
| 12500 | if (sym_sec->output_section != NULL) | |
| 12501 | ok_dest = TRUE; | |
| 12502 | } | |
| 99877b66 AM |
12503 | else |
| 12504 | fdh = NULL; | |
| 8387904d | 12505 | } |
| 7fe2b9a6 AM |
12506 | } |
| 12507 | else | |
| 12508 | { | |
| 12509 | bfd_set_error (bfd_error_bad_value); | |
| 12510 | goto error_ret_free_internal; | |
| 721956f4 AM |
12511 | } |
| 12512 | ||
| 8843416a | 12513 | destination = 0; |
| 6911b7dc | 12514 | local_off = 0; |
| 8843416a AM |
12515 | if (ok_dest) |
| 12516 | { | |
| 12517 | sym_value += irela->r_addend; | |
| 12518 | destination = (sym_value | |
| 12519 | + sym_sec->output_offset | |
| 12520 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12521 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12522 | ? hash->elf.other | |
| 12523 | : sym->st_other); | |
| 8843416a AM |
12524 | } |
| 12525 | ||
| 8387904d | 12526 | code_sec = sym_sec; |
| e054468f | 12527 | code_value = sym_value; |
| 74f0fb50 AM |
12528 | opd = get_opd_info (sym_sec); |
| 12529 | if (opd != NULL) | |
| 8387904d AM |
12530 | { |
| 12531 | bfd_vma dest; | |
| 12532 | ||
| 74f0fb50 | 12533 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12534 | { |
| 51aecdc5 | 12535 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12536 | if (adjust == -1) |
| 12537 | continue; | |
| e054468f | 12538 | code_value += adjust; |
| 8387904d AM |
12539 | sym_value += adjust; |
| 12540 | } | |
| 12541 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12542 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12543 | if (dest != (bfd_vma) -1) |
| 12544 | { | |
| 12545 | destination = dest; | |
| 12546 | if (fdh != NULL) | |
| 12547 | { | |
| 12548 | /* Fixup old ABI sym to point at code | |
| 12549 | entry. */ | |
| 99877b66 | 12550 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12551 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12552 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12553 | } |
| 12554 | } | |
| 12555 | } | |
| 12556 | ||
| 721956f4 | 12557 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12558 | plt_ent = NULL; |
| 721956f4 | 12559 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12560 | &plt_ent, destination, |
| 12561 | local_off); | |
| ad8e1ba5 AM |
12562 | |
| 12563 | if (stub_type != ppc_stub_plt_call) | |
| 12564 | { | |
| 12565 | /* Check whether we need a TOC adjusting stub. | |
| 12566 | Since the linker pastes together pieces from | |
| 12567 | different object files when creating the | |
| 12568 | _init and _fini functions, it may be that a | |
| 12569 | call to what looks like a local sym is in | |
| 12570 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12571 | if (code_sec != NULL |
| 12572 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12573 | && (htab->sec_info[code_sec->id].toc_off |
| 12574 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12575 | && (code_sec->has_toc_reloc |
| 12576 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12577 | stub_type = ppc_stub_long_branch_r2off; |
| 12578 | } | |
| 12579 | ||
| 721956f4 AM |
12580 | if (stub_type == ppc_stub_none) |
| 12581 | continue; | |
| 12582 | ||
| 411e1bfb AM |
12583 | /* __tls_get_addr calls might be eliminated. */ |
| 12584 | if (stub_type != ppc_stub_plt_call | |
| 12585 | && hash != NULL | |
| 8387904d AM |
12586 | && (hash == htab->tls_get_addr |
| 12587 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12588 | && section->has_tls_reloc |
| 12589 | && irela != internal_relocs) | |
| 12590 | { | |
| 12591 | /* Get tls info. */ | |
| f961d9dd | 12592 | unsigned char *tls_mask; |
| 411e1bfb | 12593 | |
| 3a71aa26 | 12594 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12595 | irela - 1, input_bfd)) |
| 12596 | goto error_ret_free_internal; | |
| e7b938ca | 12597 | if (*tls_mask != 0) |
| 411e1bfb AM |
12598 | continue; |
| 12599 | } | |
| 12600 | ||
| f378ab09 | 12601 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12602 | { |
| 6e1816be AM |
12603 | if (!htab->opd_abi |
| 12604 | && htab->params->plt_localentry0 != 0 | |
| 12605 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12606 | htab->has_plt_localentry0 = 1; | |
| 12607 | else if (irela + 1 < irelaend | |
| 12608 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12609 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12610 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12611 | { |
| 12612 | if (!tocsave_find (htab, INSERT, | |
| 12613 | &local_syms, irela + 1, input_bfd)) | |
| 12614 | goto error_ret_free_internal; | |
| 12615 | } | |
| f378ab09 AM |
12616 | else |
| 12617 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12618 | } |
| 3b421ab3 | 12619 | |
| 721956f4 | 12620 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12621 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12622 | |
| 12623 | /* Get the name of this stub. */ | |
| 12624 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12625 | if (!stub_name) | |
| 12626 | goto error_ret_free_internal; | |
| 12627 | ||
| 12628 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12629 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12630 | if (stub_entry != NULL) |
| 12631 | { | |
| 12632 | /* The proper stub has already been created. */ | |
| 12633 | free (stub_name); | |
| 794e51c0 AM |
12634 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12635 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12636 | continue; |
| 12637 | } | |
| 12638 | ||
| 25f53a85 | 12639 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12640 | if (stub_entry == NULL) |
| 12641 | { | |
| 12642 | free (stub_name); | |
| 6cdc0ccc AM |
12643 | error_ret_free_internal: |
| 12644 | if (elf_section_data (section)->relocs == NULL) | |
| 12645 | free (internal_relocs); | |
| 12646 | error_ret_free_local: | |
| 12647 | if (local_syms != NULL | |
| 12648 | && (symtab_hdr->contents | |
| 12649 | != (unsigned char *) local_syms)) | |
| 12650 | free (local_syms); | |
| b34976b6 | 12651 | return FALSE; |
| 721956f4 AM |
12652 | } |
| 12653 | ||
| ad8e1ba5 | 12654 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12655 | if (stub_type != ppc_stub_plt_call |
| 12656 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12657 | { |
| 12658 | stub_entry->target_value = code_value; | |
| 12659 | stub_entry->target_section = code_sec; | |
| 12660 | } | |
| 12661 | else | |
| 12662 | { | |
| 12663 | stub_entry->target_value = sym_value; | |
| 12664 | stub_entry->target_section = sym_sec; | |
| 12665 | } | |
| 721956f4 | 12666 | stub_entry->h = hash; |
| e054468f | 12667 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12668 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12669 | |
| 12670 | if (stub_entry->h != NULL) | |
| 12671 | htab->stub_globals += 1; | |
| 721956f4 AM |
12672 | } |
| 12673 | ||
| 12674 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12675 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12676 | free (internal_relocs); |
| 721956f4 | 12677 | } |
| 6cdc0ccc AM |
12678 | |
| 12679 | if (local_syms != NULL | |
| 12680 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12681 | { | |
| 12682 | if (!info->keep_memory) | |
| 12683 | free (local_syms); | |
| 12684 | else | |
| 12685 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12686 | } | |
| 721956f4 AM |
12687 | } |
| 12688 | ||
| 5c3dead3 | 12689 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12690 | stub sections. */ |
| d4aaa2a0 AM |
12691 | for (group = htab->group; group != NULL; group = group->next) |
| 12692 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12693 | { |
| d4aaa2a0 AM |
12694 | asection *stub_sec = group->stub_sec; |
| 12695 | ||
| ea3d7d1c AM |
12696 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12697 | || stub_sec->rawsize < stub_sec->size) | |
| 12698 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12699 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12700 | stub_sec->size = 0; |
| 12701 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12702 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12703 | } |
| eea6121a AM |
12704 | |
| 12705 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12706 | htab->brlt->reloc_count = 0; |
| 12707 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12708 | if (htab->relbrlt != NULL) |
| eea6121a | 12709 | htab->relbrlt->size = 0; |
| 721956f4 | 12710 | |
| 63bc6f6c | 12711 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12712 | |
| a4b6fadd AM |
12713 | for (group = htab->group; group != NULL; group = group->next) |
| 12714 | if (group->needs_save_res) | |
| 12715 | group->stub_sec->size += htab->sfpr->size; | |
| 12716 | ||
| 176a0d42 AM |
12717 | if (info->emitrelocations |
| 12718 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12719 | { | |
| 12720 | htab->glink->reloc_count = 1; | |
| 12721 | htab->glink->flags |= SEC_RELOC; | |
| 12722 | } | |
| 12723 | ||
| 58d180e8 AM |
12724 | if (htab->glink_eh_frame != NULL |
| 12725 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 2d0d44d5 | 12726 | && htab->glink_eh_frame->output_section->size > 8) |
| 58d180e8 | 12727 | { |
| 2e0ce1c8 | 12728 | size_t size = 0, align = 4; |
| 58d180e8 | 12729 | |
| d4aaa2a0 AM |
12730 | for (group = htab->group; group != NULL; group = group->next) |
| 12731 | if (group->stub_sec != NULL) | |
| 12732 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 12733 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 12734 | size += (24 + align - 1) & -align; |
| 58d180e8 | 12735 | if (size != 0) |
| 2e0ce1c8 AM |
12736 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 12737 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 12738 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
12739 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12740 | htab->glink_eh_frame->size = size; | |
| 12741 | } | |
| 12742 | ||
| e7d1c40c | 12743 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
12744 | for (group = htab->group; group != NULL; group = group->next) |
| 12745 | if (group->stub_sec != NULL) | |
| 691d2e9a AM |
12746 | { |
| 12747 | int align = abs (htab->params->plt_stub_align); | |
| 12748 | group->stub_sec->size | |
| 12749 | = (group->stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 12750 | } | |
| d4aaa2a0 AM |
12751 | |
| 12752 | for (group = htab->group; group != NULL; group = group->next) | |
| 12753 | if (group->stub_sec != NULL | |
| 12754 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 12755 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 12756 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
12757 | break; |
| 12758 | ||
| d4aaa2a0 | 12759 | if (group == NULL |
| 58d180e8 AM |
12760 | && (htab->glink_eh_frame == NULL |
| 12761 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12762 | break; |
| 12763 | ||
| 721956f4 | 12764 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12765 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12766 | } |
| 12767 | ||
| da44f4e5 AM |
12768 | if (htab->glink_eh_frame != NULL |
| 12769 | && htab->glink_eh_frame->size != 0) | |
| 12770 | { | |
| 12771 | bfd_vma val; | |
| 12772 | bfd_byte *p, *last_fde; | |
| 12773 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 12774 | struct map_stub *group; |
| da44f4e5 AM |
12775 | |
| 12776 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12777 | if (p == NULL) | |
| 12778 | return FALSE; | |
| 12779 | htab->glink_eh_frame->contents = p; | |
| 12780 | last_fde = p; | |
| 2e0ce1c8 | 12781 | align = 4; |
| da44f4e5 AM |
12782 | |
| 12783 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12784 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 12785 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 12786 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 12787 | p += last_fde_len + 4; |
| da44f4e5 | 12788 | |
| d4aaa2a0 AM |
12789 | for (group = htab->group; group != NULL; group = group->next) |
| 12790 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
12791 | { |
| 12792 | last_fde = p; | |
| d4aaa2a0 | 12793 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 12794 | /* FDE length. */ |
| 2e0ce1c8 | 12795 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12796 | p += 4; |
| 12797 | /* CIE pointer. */ | |
| 12798 | val = p - htab->glink_eh_frame->contents; | |
| 12799 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12800 | p += 4; | |
| 12801 | /* Offset to stub section, written later. */ | |
| 12802 | p += 4; | |
| 12803 | /* stub section size. */ | |
| d4aaa2a0 | 12804 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
12805 | p += 4; |
| 12806 | /* Augmentation. */ | |
| 12807 | p += 1; | |
| d4aaa2a0 AM |
12808 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 12809 | { | |
| 12810 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12811 | ||
| 12812 | /* This FDE needs more than just the default. | |
| 12813 | Describe __tls_get_addr_opt stub LR. */ | |
| 12814 | if (to_bctrl < 64) | |
| 12815 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 12816 | else if (to_bctrl < 256) | |
| 12817 | { | |
| 12818 | *p++ = DW_CFA_advance_loc1; | |
| 12819 | *p++ = to_bctrl; | |
| 12820 | } | |
| 12821 | else if (to_bctrl < 65536) | |
| 12822 | { | |
| 12823 | *p++ = DW_CFA_advance_loc2; | |
| 12824 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 12825 | p += 2; | |
| 12826 | } | |
| 12827 | else | |
| 12828 | { | |
| 12829 | *p++ = DW_CFA_advance_loc4; | |
| 12830 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 12831 | p += 4; | |
| 12832 | } | |
| 12833 | *p++ = DW_CFA_offset_extended_sf; | |
| 12834 | *p++ = 65; | |
| 12835 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 12836 | *p++ = DW_CFA_advance_loc + 4; | |
| 12837 | *p++ = DW_CFA_restore_extended; | |
| 12838 | *p++ = 65; | |
| 12839 | } | |
| da44f4e5 | 12840 | /* Pad. */ |
| d4aaa2a0 | 12841 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
12842 | } |
| 12843 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12844 | { | |
| 12845 | last_fde = p; | |
| 2e0ce1c8 | 12846 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 12847 | /* FDE length. */ |
| 2e0ce1c8 | 12848 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12849 | p += 4; |
| 12850 | /* CIE pointer. */ | |
| 12851 | val = p - htab->glink_eh_frame->contents; | |
| 12852 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12853 | p += 4; | |
| 12854 | /* Offset to .glink, written later. */ | |
| 12855 | p += 4; | |
| 12856 | /* .glink size. */ | |
| 12857 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12858 | p += 4; | |
| 12859 | /* Augmentation. */ | |
| 12860 | p += 1; | |
| 12861 | ||
| 12862 | *p++ = DW_CFA_advance_loc + 1; | |
| 12863 | *p++ = DW_CFA_register; | |
| 12864 | *p++ = 65; | |
| 9f08fa5c | 12865 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 12866 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
12867 | *p++ = DW_CFA_restore_extended; |
| 12868 | *p++ = 65; | |
| 2e0ce1c8 | 12869 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
12870 | } |
| 12871 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12872 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12873 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 12874 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 12875 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 12876 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
12877 | htab->glink_eh_frame->size = size + pad; |
| 12878 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12879 | } | |
| 12880 | ||
| d969d15f AM |
12881 | maybe_strip_output (info, htab->brlt); |
| 12882 | if (htab->glink_eh_frame != NULL) | |
| 12883 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12884 | |
| b34976b6 | 12885 | return TRUE; |
| 721956f4 AM |
12886 | } |
| 12887 | ||
| 12888 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12889 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12890 | |
| 805fc799 | 12891 | bfd_vma |
| 1c865ab2 | 12892 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12893 | { |
| 805fc799 | 12894 | asection *s; |
| a27e685f | 12895 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12896 | |
| 43417696 AM |
12897 | if (info != NULL) |
| 12898 | { | |
| 12899 | struct elf_link_hash_entry *h; | |
| 12900 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12901 | ||
| 12902 | if (is_elf_hash_table (htab) | |
| 12903 | && htab->hgot != NULL) | |
| 12904 | h = htab->hgot; | |
| 12905 | else | |
| 12906 | { | |
| 12907 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12908 | if (is_elf_hash_table (htab)) | |
| 12909 | htab->hgot = h; | |
| 12910 | } | |
| 12911 | if (h != NULL | |
| 12912 | && h->root.type == bfd_link_hash_defined | |
| 12913 | && !h->root.linker_def | |
| 12914 | && (!is_elf_hash_table (htab) | |
| 12915 | || h->def_regular)) | |
| 12916 | { | |
| 12917 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12918 | + h->root.u.def.section->output_offset | |
| 12919 | + h->root.u.def.section->output_section->vma); | |
| 12920 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12921 | return TOCstart; | |
| 12922 | } | |
| 12923 | } | |
| 12924 | ||
| 805fc799 AM |
12925 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12926 | order. The TOC starts where the first of these sections starts. */ | |
| 12927 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12928 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12929 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12930 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12931 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12932 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12933 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12934 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12935 | { |
| 12936 | /* This may happen for | |
| 12937 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12938 | .toc directive | |
| 12939 | o bad linker script | |
| 12940 | o --gc-sections and empty TOC sections | |
| 12941 | ||
| 12942 | FIXME: Warn user? */ | |
| 12943 | ||
| 12944 | /* Look for a likely section. We probably won't even be | |
| 12945 | using TOCstart. */ | |
| 12946 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12947 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12948 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12949 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12950 | break; | |
| 721956f4 | 12951 | if (s == NULL) |
| 805fc799 | 12952 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12953 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12954 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12955 | break; | |
| 721956f4 | 12956 | if (s == NULL) |
| 805fc799 | 12957 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12958 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12959 | == SEC_ALLOC) | |
| 805fc799 | 12960 | break; |
| 721956f4 | 12961 | if (s == NULL) |
| 805fc799 | 12962 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12963 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12964 | break; |
| 12965 | } | |
| 721956f4 | 12966 | |
| 805fc799 AM |
12967 | TOCstart = 0; |
| 12968 | if (s != NULL) | |
| 12969 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12970 | |
| a27e685f AM |
12971 | /* Force alignment. */ |
| 12972 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12973 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12974 | _bfd_set_gp_value (obfd, TOCstart); |
| 12975 | ||
| 810d4e75 | 12976 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12977 | { |
| 12978 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12979 | ||
| 810d4e75 AM |
12980 | if (htab != NULL) |
| 12981 | { | |
| 12982 | if (htab->elf.hgot != NULL) | |
| 12983 | { | |
| a27e685f | 12984 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12985 | htab->elf.hgot->root.u.def.section = s; |
| 12986 | } | |
| 12987 | } | |
| 12988 | else | |
| 1c865ab2 | 12989 | { |
| 810d4e75 AM |
12990 | struct bfd_link_hash_entry *bh = NULL; |
| 12991 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12992 | s, TOC_BASE_OFF - adjust, |
| 12993 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12994 | } |
| 12995 | } | |
| 805fc799 | 12996 | return TOCstart; |
| 721956f4 AM |
12997 | } |
| 12998 | ||
| a345bc8d AM |
12999 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 13000 | write out any global entry stubs. */ | |
| 13001 | ||
| 13002 | static bfd_boolean | |
| 13003 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 13004 | { | |
| 13005 | struct bfd_link_info *info; | |
| 13006 | struct ppc_link_hash_table *htab; | |
| 13007 | struct plt_entry *pent; | |
| 13008 | asection *s; | |
| 13009 | ||
| 13010 | if (h->root.type == bfd_link_hash_indirect) | |
| 13011 | return TRUE; | |
| 13012 | ||
| 13013 | if (!h->pointer_equality_needed) | |
| 13014 | return TRUE; | |
| 13015 | ||
| 13016 | if (h->def_regular) | |
| 13017 | return TRUE; | |
| 13018 | ||
| 13019 | info = inf; | |
| 13020 | htab = ppc_hash_table (info); | |
| 13021 | if (htab == NULL) | |
| 13022 | return FALSE; | |
| 13023 | ||
| 9e390558 | 13024 | s = htab->global_entry; |
| a345bc8d AM |
13025 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 13026 | if (pent->plt.offset != (bfd_vma) -1 | |
| 13027 | && pent->addend == 0) | |
| 13028 | { | |
| 13029 | bfd_byte *p; | |
| 13030 | asection *plt; | |
| 13031 | bfd_vma off; | |
| 13032 | ||
| a345bc8d | 13033 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 13034 | plt = htab->elf.splt; |
| a345bc8d AM |
13035 | if (!htab->elf.dynamic_sections_created |
| 13036 | || h->dynindx == -1) | |
| 33e44f2e | 13037 | plt = htab->elf.iplt; |
| a345bc8d AM |
13038 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 13039 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 13040 | ||
| 13041 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13042 | { | |
| 13043 | info->callbacks->einfo | |
| 13044 | (_("%P: linkage table error against `%T'\n"), | |
| 13045 | h->root.root.string); | |
| 13046 | bfd_set_error (bfd_error_bad_value); | |
| 13047 | htab->stub_error = TRUE; | |
| 13048 | } | |
| 13049 | ||
| 7341d5e2 AM |
13050 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13051 | if (htab->params->emit_stub_syms) | |
| 13052 | { | |
| 13053 | size_t len = strlen (h->root.root.string); | |
| 13054 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13055 | ||
| 13056 | if (name == NULL) | |
| 13057 | return FALSE; | |
| 13058 | ||
| 13059 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13060 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13061 | if (h == NULL) | |
| 13062 | return FALSE; | |
| 13063 | if (h->root.type == bfd_link_hash_new) | |
| 13064 | { | |
| 13065 | h->root.type = bfd_link_hash_defined; | |
| 13066 | h->root.u.def.section = s; | |
| 13067 | h->root.u.def.value = p - s->contents; | |
| 13068 | h->ref_regular = 1; | |
| 13069 | h->def_regular = 1; | |
| 13070 | h->ref_regular_nonweak = 1; | |
| 13071 | h->forced_local = 1; | |
| 13072 | h->non_elf = 0; | |
| 2ec55de3 | 13073 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13074 | } |
| 13075 | } | |
| 13076 | ||
| a345bc8d AM |
13077 | if (PPC_HA (off) != 0) |
| 13078 | { | |
| 13079 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13080 | p += 4; | |
| 13081 | } | |
| 13082 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13083 | p += 4; | |
| 13084 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13085 | p += 4; | |
| 1be5d8d3 | 13086 | output_bctr (htab, s->owner, p); |
| a345bc8d AM |
13087 | break; |
| 13088 | } | |
| 13089 | return TRUE; | |
| 13090 | } | |
| 13091 | ||
| 721956f4 AM |
13092 | /* Build all the stubs associated with the current output file. |
| 13093 | The stubs are kept in a hash table attached to the main linker | |
| 13094 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13095 | ||
| b34976b6 | 13096 | bfd_boolean |
| e7d1c40c | 13097 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13098 | char **stats) |
| 5d1634d7 AM |
13099 | { |
| 13100 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13101 | struct map_stub *group; |
| 721956f4 | 13102 | asection *stub_sec; |
| 5d1634d7 | 13103 | bfd_byte *p; |
| e717da7e | 13104 | int stub_sec_count = 0; |
| 5d1634d7 | 13105 | |
| 4dfe6ac6 NC |
13106 | if (htab == NULL) |
| 13107 | return FALSE; | |
| 13108 | ||
| eea6121a | 13109 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13110 | for (group = htab->group; group != NULL; group = group->next) |
| 13111 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13112 | && stub_sec->size != 0) |
| e717da7e | 13113 | { |
| e7d1c40c | 13114 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13115 | if (stub_sec->contents == NULL) |
| 13116 | return FALSE; | |
| eea6121a | 13117 | stub_sec->size = 0; |
| e717da7e | 13118 | } |
| 5d1634d7 | 13119 | |
| 23eb7e01 | 13120 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13121 | { |
| 9f951329 | 13122 | unsigned int indx; |
| ad8e1ba5 | 13123 | bfd_vma plt0; |
| 9f951329 | 13124 | |
| 721956f4 | 13125 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13126 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13127 | { |
| 13128 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13129 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13130 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13131 | if (h == NULL) |
| 13132 | return FALSE; | |
| 13133 | if (h->root.type == bfd_link_hash_new) | |
| 13134 | { | |
| 13135 | h->root.type = bfd_link_hash_defined; | |
| 13136 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13137 | h->root.u.def.value = 8; |
| f5385ebf AM |
13138 | h->ref_regular = 1; |
| 13139 | h->def_regular = 1; | |
| 13140 | h->ref_regular_nonweak = 1; | |
| 13141 | h->forced_local = 1; | |
| 13142 | h->non_elf = 0; | |
| 2ec55de3 | 13143 | h->root.linker_def = 1; |
| 97b639ba AM |
13144 | } |
| 13145 | } | |
| 33e44f2e AM |
13146 | plt0 = (htab->elf.splt->output_section->vma |
| 13147 | + htab->elf.splt->output_offset | |
| 13148 | - 16); | |
| 176a0d42 AM |
13149 | if (info->emitrelocations) |
| 13150 | { | |
| 13151 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13152 | if (r == NULL) | |
| 13153 | return FALSE; | |
| 13154 | r->r_offset = (htab->glink->output_offset | |
| 13155 | + htab->glink->output_section->vma); | |
| 13156 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13157 | r->r_addend = plt0; | |
| 13158 | } | |
| 4ce794b7 | 13159 | p = htab->glink->contents; |
| 176a0d42 | 13160 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13161 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13162 | p += 8; | |
| b9e5796b AM |
13163 | if (htab->opd_abi) |
| 13164 | { | |
| 13165 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13166 | p += 4; | |
| 13167 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13168 | p += 4; | |
| 13169 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13170 | p += 4; | |
| 13171 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13172 | p += 4; | |
| 13173 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13174 | p += 4; | |
| 13175 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13176 | p += 4; | |
| 13177 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13178 | p += 4; | |
| 13179 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13180 | p += 4; | |
| 13181 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13182 | p += 4; | |
| 13183 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13184 | p += 4; | |
| 13185 | } | |
| 13186 | else | |
| 13187 | { | |
| 13188 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13189 | p += 4; | |
| 13190 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13191 | p += 4; | |
| 13192 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13193 | p += 4; | |
| f378ab09 AM |
13194 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13195 | p += 4; | |
| b9e5796b AM |
13196 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13197 | p += 4; | |
| 13198 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13199 | p += 4; | |
| 13200 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13201 | p += 4; | |
| 13202 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13203 | p += 4; | |
| 13204 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13205 | p += 4; | |
| 13206 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13207 | p += 4; | |
| 13208 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13209 | p += 4; | |
| 13210 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13211 | p += 4; | |
| 13212 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13213 | p += 4; | |
| 13214 | } | |
| 1be5d8d3 | 13215 | p = output_bctr (htab, htab->glink->owner, p); |
| c75bc4f7 | 13216 | BFD_ASSERT (p == htab->glink->contents + GLINK_PLTRESOLVE_SIZE (htab)); |
| ad8e1ba5 | 13217 | |
| 9f951329 AM |
13218 | /* Build the .glink lazy link call stubs. */ |
| 13219 | indx = 0; | |
| 9e390558 | 13220 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 | 13221 | { |
| b9e5796b | 13222 | if (htab->opd_abi) |
| 9f951329 | 13223 | { |
| b9e5796b AM |
13224 | if (indx < 0x8000) |
| 13225 | { | |
| 13226 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13227 | p += 4; | |
| 13228 | } | |
| 13229 | else | |
| 13230 | { | |
| 13231 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13232 | p += 4; | |
| 13233 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13234 | p); | |
| 13235 | p += 4; | |
| 13236 | } | |
| 9f951329 | 13237 | } |
| 4ce794b7 | 13238 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13239 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13240 | indx++; |
| 9f951329 AM |
13241 | p += 4; |
| 13242 | } | |
| 5d1634d7 | 13243 | } |
| 5d1634d7 | 13244 | |
| 9e390558 AM |
13245 | /* Build .glink global entry stubs. */ |
| 13246 | if (htab->global_entry != NULL && htab->global_entry->size != 0) | |
| 13247 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); | |
| 13248 | ||
| 7341d5e2 | 13249 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13250 | { |
| 4ce794b7 | 13251 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13252 | htab->brlt->size); |
| 4ce794b7 | 13253 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13254 | return FALSE; |
| 721956f4 | 13255 | } |
| ee75fd95 | 13256 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13257 | { |
| 13258 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13259 | htab->relbrlt->size); |
| 63bc6f6c AM |
13260 | if (htab->relbrlt->contents == NULL) |
| 13261 | return FALSE; | |
| 13262 | } | |
| 5d1634d7 | 13263 | |
| 721956f4 AM |
13264 | /* Build the stubs as directed by the stub hash table. */ |
| 13265 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13266 | |
| a4b6fadd AM |
13267 | for (group = htab->group; group != NULL; group = group->next) |
| 13268 | if (group->needs_save_res) | |
| 13269 | { | |
| 13270 | stub_sec = group->stub_sec; | |
| 13271 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13272 | htab->sfpr->size); | |
| 13273 | if (htab->params->emit_stub_syms) | |
| 13274 | { | |
| 13275 | unsigned int i; | |
| 13276 | ||
| 13277 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13278 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13279 | return FALSE; | |
| 13280 | } | |
| 13281 | stub_sec->size += htab->sfpr->size; | |
| 13282 | } | |
| 13283 | ||
| aa8a7074 AM |
13284 | if (htab->relbrlt != NULL) |
| 13285 | htab->relbrlt->reloc_count = 0; | |
| 13286 | ||
| e7d1c40c | 13287 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13288 | for (group = htab->group; group != NULL; group = group->next) |
| 13289 | if ((stub_sec = group->stub_sec) != NULL) | |
| 691d2e9a AM |
13290 | { |
| 13291 | int align = abs (htab->params->plt_stub_align); | |
| 13292 | stub_sec->size = (stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 13293 | } | |
| 794e51c0 | 13294 | |
| d4aaa2a0 AM |
13295 | for (group = htab->group; group != NULL; group = group->next) |
| 13296 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13297 | { |
| 13298 | stub_sec_count += 1; | |
| c9301e31 AM |
13299 | if (stub_sec->rawsize != stub_sec->size |
| 13300 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13301 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13302 | break; |
| 13303 | } | |
| 5d1634d7 | 13304 | |
| 25516cc5 | 13305 | if (group != NULL) |
| 5d1634d7 | 13306 | { |
| b34976b6 | 13307 | htab->stub_error = TRUE; |
| 8de848d8 | 13308 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13309 | } |
| 721956f4 | 13310 | |
| d2a300cf AM |
13311 | if (htab->stub_error) |
| 13312 | return FALSE; | |
| 13313 | ||
| 13314 | if (stats != NULL) | |
| 13315 | { | |
| db84fff3 | 13316 | size_t len; |
| d2a300cf AM |
13317 | *stats = bfd_malloc (500); |
| 13318 | if (*stats == NULL) | |
| 13319 | return FALSE; | |
| 13320 | ||
| db84fff3 AM |
13321 | len = sprintf (*stats, |
| 13322 | ngettext ("linker stubs in %u group\n", | |
| 13323 | "linker stubs in %u groups\n", | |
| 13324 | stub_sec_count), | |
| 13325 | stub_sec_count); | |
| 13326 | sprintf (*stats + len, _(" branch %lu\n" | |
| 13327 | " toc adjust %lu\n" | |
| 13328 | " long branch %lu\n" | |
| 13329 | " long toc adj %lu\n" | |
| 13330 | " plt call %lu\n" | |
| 13331 | " plt call toc %lu\n" | |
| 13332 | " global entry %lu"), | |
| 4ce794b7 AM |
13333 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13334 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13335 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13336 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13337 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13338 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13339 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13340 | } |
| 13341 | return TRUE; | |
| 5bd4f169 AM |
13342 | } |
| 13343 | ||
| 60124e18 AM |
13344 | /* What to do when ld finds relocations against symbols defined in |
| 13345 | discarded sections. */ | |
| 13346 | ||
| 13347 | static unsigned int | |
| 13348 | ppc64_elf_action_discarded (asection *sec) | |
| 13349 | { | |
| 13350 | if (strcmp (".opd", sec->name) == 0) | |
| 13351 | return 0; | |
| 13352 | ||
| 13353 | if (strcmp (".toc", sec->name) == 0) | |
| 13354 | return 0; | |
| 13355 | ||
| bce50a28 JJ |
13356 | if (strcmp (".toc1", sec->name) == 0) |
| 13357 | return 0; | |
| 13358 | ||
| 60124e18 AM |
13359 | return _bfd_elf_default_action_discarded (sec); |
| 13360 | } | |
| 13361 | ||
| 5bd4f169 AM |
13362 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13363 | to handle the relocations for a section. | |
| 13364 | ||
| 13365 | The relocs are always passed as Rela structures; if the section | |
| 13366 | actually uses Rel structures, the r_addend field will always be | |
| 13367 | zero. | |
| 13368 | ||
| 13369 | This function is responsible for adjust the section contents as | |
| 13370 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13371 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13372 | necessary. |
| 13373 | ||
| 13374 | This function does not have to worry about setting the reloc | |
| 13375 | address or the reloc symbol index. | |
| 13376 | ||
| 13377 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13378 | ||
| 13379 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13380 | corresponding to the st_shndx field of each local symbol. | |
| 13381 | ||
| 13382 | The global hash table entry for the global symbols can be found | |
| 13383 | via elf_sym_hashes (input_bfd). | |
| 13384 | ||
| 1049f94e | 13385 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13386 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13387 | going to be the section symbol corresponding to the output | |
| 13388 | section, which means that the addend must be adjusted | |
| 13389 | accordingly. */ | |
| 13390 | ||
| b34976b6 | 13391 | static bfd_boolean |
| 4ce794b7 AM |
13392 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13393 | struct bfd_link_info *info, | |
| 13394 | bfd *input_bfd, | |
| 13395 | asection *input_section, | |
| 13396 | bfd_byte *contents, | |
| 13397 | Elf_Internal_Rela *relocs, | |
| 13398 | Elf_Internal_Sym *local_syms, | |
| 13399 | asection **local_sections) | |
| 5bd4f169 | 13400 | { |
| 65f38f15 | 13401 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13402 | Elf_Internal_Shdr *symtab_hdr; |
| 13403 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13404 | Elf_Internal_Rela *rel; |
| c316a17c | 13405 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13406 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13407 | Elf_Internal_Rela outrel; |
| 13408 | bfd_byte *loc; | |
| 411e1bfb | 13409 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13410 | bfd_vma TOCstart; |
| b34976b6 AM |
13411 | bfd_boolean ret = TRUE; |
| 13412 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13413 | /* Assume 'at' branch hints. */ |
| 13414 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13415 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13416 | |
| 65f38f15 | 13417 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13418 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13419 | ppc_howto_init (); |
| 13420 | ||
| 65f38f15 | 13421 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13422 | if (htab == NULL) |
| 13423 | return FALSE; | |
| ee75fd95 AM |
13424 | |
| 13425 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13426 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13427 | return TRUE; |
| 13428 | ||
| 0c8d6e5c | 13429 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13430 | |
| 411e1bfb | 13431 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13432 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13433 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13434 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13435 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13436 | |
| c316a17c | 13437 | rel = wrel = relocs; |
| 5bd4f169 | 13438 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13439 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13440 | { |
| 04c9666a | 13441 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13442 | bfd_vma addend; |
| 5bd4f169 AM |
13443 | bfd_reloc_status_type r; |
| 13444 | Elf_Internal_Sym *sym; | |
| 13445 | asection *sec; | |
| 039b3fef AM |
13446 | struct elf_link_hash_entry *h_elf; |
| 13447 | struct ppc_link_hash_entry *h; | |
| 13448 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13449 | const char *sym_name; |
| 0d4792f7 | 13450 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13451 | bfd_vma toc_addend; |
| f961d9dd AM |
13452 | unsigned char tls_mask, tls_gd, tls_type; |
| 13453 | unsigned char sym_type; | |
| 5bd4f169 | 13454 | bfd_vma relocation; |
| b34976b6 AM |
13455 | bfd_boolean unresolved_reloc; |
| 13456 | bfd_boolean warned; | |
| bc30df16 | 13457 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13458 | unsigned int insn; |
| e11840f9 | 13459 | unsigned int mask; |
| 721956f4 AM |
13460 | struct ppc_stub_hash_entry *stub_entry; |
| 13461 | bfd_vma max_br_offset; | |
| 13462 | bfd_vma from; | |
| c316a17c | 13463 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13464 | reloc_howto_type *howto; |
| 13465 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13466 | |
| c316a17c AM |
13467 | again: |
| 13468 | orig_rel = *rel; | |
| 13469 | ||
| 4ce794b7 | 13470 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13471 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13472 | |
| 13473 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13474 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13475 | proper TOC base to use. */ | |
| 13476 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13477 | && wrel != relocs |
| 13478 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13479 | && is_opd) |
| c316a17c | 13480 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13481 | |
| 4ce794b7 AM |
13482 | sym = NULL; |
| 13483 | sec = NULL; | |
| 039b3fef | 13484 | h_elf = NULL; |
| 4ce794b7 | 13485 | sym_name = NULL; |
| b34976b6 AM |
13486 | unresolved_reloc = FALSE; |
| 13487 | warned = FALSE; | |
| 65f38f15 | 13488 | |
| 0b13192e | 13489 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13490 | { |
| 13491 | /* It's a local symbol. */ | |
| 74f0fb50 | 13492 | struct _opd_sec_data *opd; |
| 4025353c | 13493 | |
| 5bd4f169 AM |
13494 | sym = local_syms + r_symndx; |
| 13495 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13496 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13497 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13498 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13499 | opd = get_opd_info (sec); |
| 13500 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13501 | { |
| 51aecdc5 AM |
13502 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13503 | + rel->r_addend)]; | |
| 4025353c AM |
13504 | if (adjust == -1) |
| 13505 | relocation = 0; | |
| 13506 | else | |
| 4cc603a5 AM |
13507 | { |
| 13508 | /* If this is a relocation against the opd section sym | |
| 13509 | and we have edited .opd, adjust the reloc addend so | |
| 13510 | that ld -r and ld --emit-relocs output is correct. | |
| 13511 | If it is a reloc against some other .opd symbol, | |
| 13512 | then the symbol value will be adjusted later. */ | |
| 13513 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13514 | rel->r_addend += adjust; | |
| 13515 | else | |
| 13516 | relocation += adjust; | |
| 13517 | } | |
| 1e2f5b6e | 13518 | } |
| 5bd4f169 AM |
13519 | } |
| 13520 | else | |
| 13521 | { | |
| 62d887d4 L |
13522 | bfd_boolean ignored; |
| 13523 | ||
| b2a8e766 AM |
13524 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13525 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13526 | h_elf, sec, relocation, |
| 62d887d4 | 13527 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13528 | sym_name = h_elf->root.root.string; |
| 13529 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13530 | if (sec != NULL |
| 13531 | && sec->owner == output_bfd | |
| 13532 | && strcmp (sec->name, ".opd") == 0) | |
| 13533 | { | |
| 13534 | /* This is a symbol defined in a linker script. All | |
| 13535 | such are defined in output sections, even those | |
| 13536 | defined by simple assignment from a symbol defined in | |
| 13537 | an input section. Transfer the symbol to an | |
| 13538 | appropriate input .opd section, so that a branch to | |
| 13539 | this symbol will be mapped to the location specified | |
| 13540 | by the opd entry. */ | |
| 13541 | struct bfd_link_order *lo; | |
| 13542 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13543 | if (lo->type == bfd_indirect_link_order) | |
| 13544 | { | |
| 13545 | asection *isec = lo->u.indirect.section; | |
| 13546 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13547 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13548 | + isec->size)) | |
| 13549 | { | |
| 13550 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13551 | h_elf->root.u.def.section = isec; | |
| 13552 | sec = isec; | |
| 13553 | break; | |
| 13554 | } | |
| 13555 | } | |
| 13556 | } | |
| 5bd4f169 | 13557 | } |
| 039b3fef | 13558 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13559 | |
| dbaa2011 | 13560 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13561 | { |
| 13562 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13563 | input_bfd, input_section, | |
| 13564 | contents + rel->r_offset); | |
| 13565 | wrel->r_offset = rel->r_offset; | |
| 13566 | wrel->r_info = 0; | |
| 13567 | wrel->r_addend = 0; | |
| 13568 | ||
| 13569 | /* For ld -r, remove relocations in debug sections against | |
| dcd2b8a0 | 13570 | symbols defined in discarded sections. Not done for |
| c316a17c AM |
13571 | non-debug to preserve relocs in .eh_frame which the |
| 13572 | eh_frame editing code expects to be present. */ | |
| 13573 | if (bfd_link_relocatable (info) | |
| 13574 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13575 | wrel--; | |
| 13576 | ||
| 13577 | continue; | |
| 13578 | } | |
| ab96bf03 | 13579 | |
| 0e1862bb | 13580 | if (bfd_link_relocatable (info)) |
| c316a17c | 13581 | goto copy_reloc; |
| ab96bf03 | 13582 | |
| f40da81b AM |
13583 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13584 | { | |
| 6f20ed8a | 13585 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13586 | sec = bfd_abs_section_ptr; |
| 13587 | unresolved_reloc = FALSE; | |
| 13588 | } | |
| 13589 | ||
| 951fd09b AM |
13590 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13591 | based on information we collected in tls_optimize. We edit | |
| 13592 | RELOCS so that --emit-relocs will output something sensible | |
| 13593 | for the final instruction stream. */ | |
| 13594 | tls_mask = 0; | |
| 13595 | tls_gd = 0; | |
| 0d4792f7 | 13596 | toc_symndx = 0; |
| 727fc41e AM |
13597 | if (h != NULL) |
| 13598 | tls_mask = h->tls_mask; | |
| 13599 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13600 | { |
| e054468f AM |
13601 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13602 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13603 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13604 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13605 | tls_mask = lgot_masks[r_symndx]; |
| 13606 | } | |
| 13607 | if (tls_mask == 0 | |
| 13608 | && (r_type == R_PPC64_TLS | |
| 13609 | || r_type == R_PPC64_TLSGD | |
| 13610 | || r_type == R_PPC64_TLSLD)) | |
| 13611 | { | |
| 13612 | /* Check for toc tls entries. */ | |
| f961d9dd | 13613 | unsigned char *toc_tls; |
| 0d4792f7 | 13614 | |
| 727fc41e AM |
13615 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13616 | &local_syms, rel, input_bfd)) | |
| 13617 | return FALSE; | |
| 0d4792f7 | 13618 | |
| 727fc41e AM |
13619 | if (toc_tls) |
| 13620 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13621 | } |
| 13622 | ||
| 13623 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13624 | relocs are used with non-tls syms. */ | |
| cf35638d | 13625 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13626 | && r_type != R_PPC64_NONE |
| 13627 | && (h == NULL | |
| 039b3fef AM |
13628 | || h->elf.root.type == bfd_link_hash_defined |
| 13629 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13630 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13631 | != (sym_type == STT_TLS | |
| 13632 | || (sym_type == STT_SECTION | |
| 13633 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13634 | { |
| 727fc41e AM |
13635 | if (tls_mask != 0 |
| 13636 | && (r_type == R_PPC64_TLS | |
| 13637 | || r_type == R_PPC64_TLSGD | |
| 13638 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13639 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13640 | ; | |
| 13641 | else | |
| 25f53a85 | 13642 | info->callbacks->einfo |
| 1d483afe | 13643 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13644 | /* xgettext:c-format */ |
| 174d0a74 | 13645 | ? _("%H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13646 | /* xgettext:c-format */ |
| 174d0a74 | 13647 | : _("%H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13648 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13649 | ppc64_elf_howto_table[r_type]->name, |
| 13650 | sym_name); | |
| 411e1bfb AM |
13651 | } |
| 13652 | ||
| 13653 | /* Ensure reloc mapping code below stays sane. */ | |
| 13654 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13655 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13656 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13657 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13658 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13659 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13660 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13661 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13662 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13663 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13664 | abort (); | |
| 0d4792f7 | 13665 | |
| 411e1bfb AM |
13666 | switch (r_type) |
| 13667 | { | |
| 13668 | default: | |
| 411e1bfb AM |
13669 | break; |
| 13670 | ||
| ba761f19 | 13671 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13672 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13673 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13674 | abort (); | |
| 13675 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13676 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13677 | r_type = R_PPC64_TOC16_LO; |
| 13678 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13679 | break; | |
| 13680 | ||
| 411e1bfb AM |
13681 | case R_PPC64_TOC16: |
| 13682 | case R_PPC64_TOC16_LO: | |
| 13683 | case R_PPC64_TOC16_DS: | |
| 13684 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13685 | { |
| 13686 | /* Check for toc tls entries. */ | |
| f961d9dd | 13687 | unsigned char *toc_tls; |
| 951fd09b | 13688 | int retval; |
| 411e1bfb | 13689 | |
| 3a71aa26 AM |
13690 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13691 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13692 | if (retval == 0) |
| 411e1bfb AM |
13693 | return FALSE; |
| 13694 | ||
| 13695 | if (toc_tls) | |
| 13696 | { | |
| 951fd09b | 13697 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13698 | if (r_type == R_PPC64_TOC16_DS |
| 13699 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13700 | { |
| 13701 | if (tls_mask != 0 | |
| 13702 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13703 | goto toctprel; | |
| 13704 | } | |
| 411e1bfb | 13705 | else |
| 951fd09b AM |
13706 | { |
| 13707 | /* If we found a GD reloc pair, then we might be | |
| 13708 | doing a GD->IE transition. */ | |
| 13709 | if (retval == 2) | |
| 13710 | { | |
| 13711 | tls_gd = TLS_TPRELGD; | |
| 13712 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13713 | goto tls_ldgd_opt; |
| 951fd09b AM |
13714 | } |
| 13715 | else if (retval == 3) | |
| 13716 | { | |
| 13717 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13718 | goto tls_ldgd_opt; |
| 951fd09b AM |
13719 | } |
| 13720 | } | |
| 411e1bfb AM |
13721 | } |
| 13722 | } | |
| 13723 | break; | |
| 13724 | ||
| 9d6ded02 AM |
13725 | case R_PPC64_GOT_TPREL16_HI: |
| 13726 | case R_PPC64_GOT_TPREL16_HA: | |
| 13727 | if (tls_mask != 0 | |
| 13728 | && (tls_mask & TLS_TPREL) == 0) | |
| 13729 | { | |
| 13730 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13731 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13732 | r_type = R_PPC64_NONE; |
| 13733 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13734 | } | |
| 13735 | break; | |
| 13736 | ||
| 411e1bfb AM |
13737 | case R_PPC64_GOT_TPREL16_DS: |
| 13738 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13739 | if (tls_mask != 0 |
| 13740 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13741 | { |
| 81407a69 | 13742 | toctprel: |
| 95f0d0d2 | 13743 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13744 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13745 | insn &= 31 << 21; |
| 13746 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13747 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13748 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13749 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13750 | if (toc_symndx != 0) |
| 13751 | { | |
| 13752 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13753 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13754 | /* We changed the symbol. Start over in order to |
| 13755 | get h, sym, sec etc. right. */ | |
| c316a17c | 13756 | goto again; |
| 0d4792f7 AM |
13757 | } |
| 13758 | else | |
| 13759 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13760 | } |
| 13761 | break; | |
| 13762 | ||
| 13763 | case R_PPC64_TLS: | |
| 951fd09b AM |
13764 | if (tls_mask != 0 |
| 13765 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13766 | { |
| 95f0d0d2 | 13767 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13768 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13769 | if (insn == 0) | |
| 411e1bfb | 13770 | abort (); |
| 95f0d0d2 | 13771 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13772 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13773 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13774 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13775 | r_type = R_PPC64_TPREL16_LO; |
| 13776 | if (toc_symndx != 0) | |
| 13777 | { | |
| 13778 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13779 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13780 | /* We changed the symbol. Start over in order to |
| 13781 | get h, sym, sec etc. right. */ | |
| c316a17c | 13782 | goto again; |
| 0d4792f7 AM |
13783 | } |
| 13784 | else | |
| 13785 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13786 | } |
| 13787 | break; | |
| 13788 | ||
| 411e1bfb AM |
13789 | case R_PPC64_GOT_TLSGD16_HI: |
| 13790 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13791 | tls_gd = TLS_TPRELGD; |
| 13792 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13793 | goto tls_gdld_hi; | |
| 13794 | break; | |
| 13795 | ||
| 411e1bfb AM |
13796 | case R_PPC64_GOT_TLSLD16_HI: |
| 13797 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13798 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13799 | { |
| 951fd09b AM |
13800 | tls_gdld_hi: |
| 13801 | if ((tls_mask & tls_gd) != 0) | |
| 13802 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13803 | + R_PPC64_GOT_TPREL16_DS); | |
| 13804 | else | |
| 411e1bfb | 13805 | { |
| 4fe5ca5b | 13806 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13807 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13808 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13809 | } |
| 951fd09b | 13810 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13811 | } |
| 13812 | break; | |
| 13813 | ||
| 951fd09b AM |
13814 | case R_PPC64_GOT_TLSGD16: |
| 13815 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13816 | tls_gd = TLS_TPRELGD; | |
| 13817 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13818 | goto tls_ldgd_opt; |
| 951fd09b | 13819 | break; |
| 411e1bfb | 13820 | |
| 951fd09b AM |
13821 | case R_PPC64_GOT_TLSLD16: |
| 13822 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13823 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13824 | { | |
| b9f04fe0 | 13825 | unsigned int insn1, insn2; |
| 102890f0 AM |
13826 | bfd_vma offset; |
| 13827 | ||
| 13828 | tls_ldgd_opt: | |
| 727fc41e AM |
13829 | offset = (bfd_vma) -1; |
| 13830 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13831 | __tls_get_addr calls, we must trust that the call | |
| 13832 | stays with its arg setup insns, ie. that the next | |
| 13833 | reloc is the __tls_get_addr call associated with | |
| 13834 | the current reloc. Edit both insns. */ | |
| 13835 | if (input_section->has_tls_get_addr_call | |
| 13836 | && rel + 1 < relend | |
| 13837 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13838 | htab->tls_get_addr, | |
| 13839 | htab->tls_get_addr_fd)) | |
| 13840 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13841 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13842 | need to keep the destination reg. It may be | |
| 13843 | something other than the usual r3, and moved to r3 | |
| 13844 | before the call by intervening code. */ | |
| 95f0d0d2 | 13845 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13846 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13847 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13848 | { |
| 102890f0 | 13849 | /* IE */ |
| b86ac8e3 | 13850 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13851 | insn1 |= 58 << 26; /* ld */ |
| 13852 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13853 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13854 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13855 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13856 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13857 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13858 | else |
| 102890f0 AM |
13859 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13860 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13861 | } | |
| 13862 | else | |
| 13863 | { | |
| 13864 | /* LE */ | |
| b86ac8e3 AM |
13865 | insn1 &= 0x1f << 21; |
| 13866 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13867 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13868 | if (tls_gd == 0) | |
| 951fd09b | 13869 | { |
| 102890f0 | 13870 | /* Was an LD reloc. */ |
| 1d483afe AM |
13871 | if (toc_symndx) |
| 13872 | sec = local_sections[toc_symndx]; | |
| 13873 | for (r_symndx = 0; | |
| 13874 | r_symndx < symtab_hdr->sh_info; | |
| 13875 | r_symndx++) | |
| 13876 | if (local_sections[r_symndx] == sec) | |
| 13877 | break; | |
| 13878 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13879 | r_symndx = STN_UNDEF; |
| 102890f0 | 13880 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13881 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13882 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13883 | + sec->output_offset | |
| 13884 | + sec->output_section->vma); | |
| 951fd09b | 13885 | } |
| 102890f0 | 13886 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13887 | { |
| 13888 | r_symndx = toc_symndx; | |
| 13889 | rel->r_addend = toc_addend; | |
| 13890 | } | |
| 102890f0 AM |
13891 | r_type = R_PPC64_TPREL16_HA; |
| 13892 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13893 | if (offset != (bfd_vma) -1) |
| 13894 | { | |
| 13895 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13896 | R_PPC64_TPREL16_LO); | |
| 13897 | rel[1].r_offset = offset + d_offset; | |
| 13898 | rel[1].r_addend = rel->r_addend; | |
| 13899 | } | |
| 102890f0 | 13900 | } |
| 95f0d0d2 | 13901 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13902 | contents + rel->r_offset - d_offset); |
| 727fc41e | 13903 | if (offset != (bfd_vma) -1) |
| b9f04fe0 | 13904 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13905 | if ((tls_mask & tls_gd) == 0 |
| 13906 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13907 | { | |
| 13908 | /* We changed the symbol. Start over in order | |
| 13909 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13910 | goto again; |
| 727fc41e AM |
13911 | } |
| 13912 | } | |
| 13913 | break; | |
| 13914 | ||
| 13915 | case R_PPC64_TLSGD: | |
| 13916 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13917 | { | |
| b9f04fe0 | 13918 | unsigned int insn2; |
| 727fc41e AM |
13919 | bfd_vma offset = rel->r_offset; |
| 13920 | ||
| 13921 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13922 | { | |
| 13923 | /* IE */ | |
| 13924 | r_type = R_PPC64_NONE; | |
| 13925 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13926 | } | |
| 13927 | else | |
| 13928 | { | |
| 13929 | /* LE */ | |
| 13930 | if (toc_symndx != 0) | |
| 13931 | { | |
| 13932 | r_symndx = toc_symndx; | |
| 13933 | rel->r_addend = toc_addend; | |
| 13934 | } | |
| 13935 | r_type = R_PPC64_TPREL16_LO; | |
| 13936 | rel->r_offset = offset + d_offset; | |
| 13937 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13938 | } | |
| 13939 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13940 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13941 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13942 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13943 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13944 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13945 | goto again; |
| 411e1bfb | 13946 | } |
| 411e1bfb AM |
13947 | break; |
| 13948 | ||
| 727fc41e AM |
13949 | case R_PPC64_TLSLD: |
| 13950 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13951 | { | |
| b9f04fe0 | 13952 | unsigned int insn2; |
| 727fc41e AM |
13953 | bfd_vma offset = rel->r_offset; |
| 13954 | ||
| 13955 | if (toc_symndx) | |
| 13956 | sec = local_sections[toc_symndx]; | |
| 13957 | for (r_symndx = 0; | |
| 13958 | r_symndx < symtab_hdr->sh_info; | |
| 13959 | r_symndx++) | |
| 13960 | if (local_sections[r_symndx] == sec) | |
| 13961 | break; | |
| 13962 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13963 | r_symndx = STN_UNDEF; |
| 727fc41e | 13964 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13965 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13966 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13967 | + sec->output_offset | |
| 13968 | + sec->output_section->vma); | |
| 13969 | ||
| 13970 | r_type = R_PPC64_TPREL16_LO; | |
| 13971 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13972 | rel->r_offset = offset + d_offset; | |
| 13973 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13974 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13975 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13976 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13977 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13978 | goto again; |
| 727fc41e AM |
13979 | } |
| 13980 | break; | |
| 13981 | ||
| 411e1bfb | 13982 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13983 | if (rel + 1 < relend |
| 13984 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13985 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13986 | { |
| 951fd09b AM |
13987 | if ((tls_mask & TLS_GD) == 0) |
| 13988 | { | |
| 13989 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13990 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13991 | r_type = R_PPC64_TPREL64; | |
| 13992 | else | |
| 13993 | { | |
| 4ce794b7 | 13994 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13995 | r_type = R_PPC64_NONE; |
| 13996 | } | |
| 13997 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13998 | } | |
| 13999 | } | |
| 14000 | else | |
| 14001 | { | |
| 14002 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 14003 | { |
| 4ce794b7 | 14004 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 14005 | r_type = R_PPC64_NONE; |
| 951fd09b | 14006 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 14007 | } |
| 411e1bfb AM |
14008 | } |
| 14009 | break; | |
| 14010 | ||
| 14011 | case R_PPC64_TPREL64: | |
| 951fd09b | 14012 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
14013 | { |
| 14014 | r_type = R_PPC64_NONE; | |
| 14015 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14016 | } | |
| 14017 | break; | |
| 52a82034 | 14018 | |
| 006589cf AM |
14019 | case R_PPC64_ENTRY: |
| 14020 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 14021 | if (!bfd_link_pic (info) | |
| 14022 | && !info->traditional_format | |
| 14023 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14024 | { | |
| 14025 | unsigned int insn1, insn2; | |
| 14026 | ||
| 14027 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14028 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14029 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14030 | && insn2 == ADD_R2_R2_R12) | |
| 14031 | { | |
| 95f0d0d2 | 14032 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14033 | LIS_R2 + PPC_HA (relocation), |
| 14034 | contents + rel->r_offset); | |
| 95f0d0d2 | 14035 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14036 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14037 | contents + rel->r_offset + 4); | |
| 14038 | } | |
| 14039 | } | |
| 14040 | else | |
| 14041 | { | |
| 14042 | relocation -= (rel->r_offset | |
| 14043 | + input_section->output_offset | |
| 14044 | + input_section->output_section->vma); | |
| 14045 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14046 | { | |
| 14047 | unsigned int insn1, insn2; | |
| 14048 | ||
| 14049 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14050 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14051 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14052 | && insn2 == ADD_R2_R2_R12) | |
| 14053 | { | |
| 95f0d0d2 | 14054 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14055 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14056 | contents + rel->r_offset); | |
| 95f0d0d2 | 14057 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14058 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14059 | contents + rel->r_offset + 4); | |
| 14060 | } | |
| 14061 | } | |
| 14062 | } | |
| 14063 | break; | |
| 14064 | ||
| 52a82034 AM |
14065 | case R_PPC64_REL16_HA: |
| 14066 | /* If we are generating a non-PIC executable, edit | |
| 14067 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14068 | . addi 2,2,.TOC.-0b@l | |
| 14069 | used by ELFv2 global entry points to set up r2, to | |
| 14070 | . lis 2,.TOC.@ha | |
| 14071 | . addi 2,2,.TOC.@l | |
| 14072 | if .TOC. is in range. */ | |
| 0e1862bb | 14073 | if (!bfd_link_pic (info) |
| 810d4e75 | 14074 | && !info->traditional_format |
| 006589cf | 14075 | && !htab->opd_abi |
| 4f038ee5 | 14076 | && rel->r_addend == d_offset |
| 52a82034 AM |
14077 | && h != NULL && &h->elf == htab->elf.hgot |
| 14078 | && rel + 1 < relend | |
| 14079 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14080 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14081 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14082 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14083 | { | |
| 14084 | unsigned int insn1, insn2; | |
| 14085 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14086 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14087 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14088 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14089 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14090 | { |
| 14091 | r_type = R_PPC64_ADDR16_HA; | |
| 14092 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14093 | rel->r_addend -= d_offset; | |
| 14094 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14095 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14096 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14097 | } |
| 14098 | } | |
| 14099 | break; | |
| 411e1bfb AM |
14100 | } |
| 14101 | ||
| 14102 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14103 | insn = 0; |
| b25116a9 AM |
14104 | max_br_offset = 1 << 25; |
| 14105 | addend = rel->r_addend; | |
| bc30df16 | 14106 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14107 | switch (r_type) |
| 5bd4f169 AM |
14108 | { |
| 14109 | default: | |
| 65f38f15 | 14110 | break; |
| 5bd4f169 | 14111 | |
| 3b421ab3 AM |
14112 | case R_PPC64_TOCSAVE: |
| 14113 | if (relocation + addend == (rel->r_offset | |
| 14114 | + input_section->output_offset | |
| 14115 | + input_section->output_section->vma) | |
| 14116 | && tocsave_find (htab, NO_INSERT, | |
| 14117 | &local_syms, rel, input_bfd)) | |
| 14118 | { | |
| 14119 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14120 | if (insn == NOP | |
| 14121 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14122 | bfd_put_32 (input_bfd, |
| 14123 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14124 | contents + rel->r_offset); |
| 14125 | } | |
| 14126 | break; | |
| 14127 | ||
| 65f38f15 AM |
14128 | /* Branch taken prediction relocations. */ |
| 14129 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14130 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14131 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14132 | /* Fall through. */ |
| 65f38f15 | 14133 | |
| 86c76c7b | 14134 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14135 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14136 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14137 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14138 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14139 | /* Fall through. */ |
| 86c76c7b | 14140 | |
| b25116a9 AM |
14141 | case R_PPC64_REL14: |
| 14142 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14143 | /* Fall through. */ |
| 5bd4f169 | 14144 | |
| 65f38f15 | 14145 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14146 | /* Calls to functions with a different TOC, such as calls to |
| 14147 | shared objects, need to alter the TOC pointer. This is | |
| 14148 | done using a linkage stub. A REL24 branching to these | |
| 14149 | linkage stubs needs to be followed by a nop, as the nop | |
| 14150 | will be replaced with an instruction to restore the TOC | |
| 14151 | base pointer. */ | |
| 8387904d | 14152 | fdh = h; |
| b31867b6 AM |
14153 | if (h != NULL |
| 14154 | && h->oh != NULL | |
| 14155 | && h->oh->is_func_descriptor) | |
| 14156 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14157 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14158 | htab); | |
| 6abec6bc | 14159 | if (stub_entry != NULL |
| ad8e1ba5 | 14160 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14161 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14162 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14163 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14164 | { |
| b25116a9 | 14165 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14166 | |
| 6e1816be AM |
14167 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14168 | && !htab->opd_abi | |
| 14169 | && htab->params->plt_localentry0 != 0 | |
| 14170 | && is_elfv2_localentry0 (&h->elf)) | |
| 14171 | { | |
| 14172 | /* The function doesn't use or change r2. */ | |
| 14173 | can_plt_call = TRUE; | |
| 14174 | } | |
| 14175 | ||
| f378ab09 | 14176 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14177 | branch and link followed by a nop. The nop is |
| 14178 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14179 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14180 | { |
| ba8ca3e7 AM |
14181 | unsigned long br; |
| 14182 | ||
| 14183 | br = bfd_get_32 (input_bfd, | |
| 14184 | contents + rel->r_offset); | |
| 14185 | if ((br & 1) != 0) | |
| 41bd81ab | 14186 | { |
| ba8ca3e7 AM |
14187 | unsigned long nop; |
| 14188 | ||
| 14189 | nop = bfd_get_32 (input_bfd, | |
| 14190 | contents + rel->r_offset + 4); | |
| 14191 | if (nop == NOP | |
| 14192 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14193 | { |
| ba8ca3e7 AM |
14194 | if (h != NULL |
| 14195 | && (h == htab->tls_get_addr_fd | |
| 14196 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14197 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14198 | { |
| 14199 | /* Special stub used, leave nop alone. */ | |
| 14200 | } | |
| 14201 | else | |
| a078d95a AM |
14202 | bfd_put_32 (input_bfd, |
| 14203 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14204 | contents + rel->r_offset + 4); |
| 14205 | can_plt_call = TRUE; | |
| a7f2871e | 14206 | } |
| 41bd81ab | 14207 | } |
| 5bd4f169 | 14208 | } |
| 721956f4 | 14209 | |
| ba8ca3e7 | 14210 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14211 | { |
| ba8ca3e7 AM |
14212 | const char *name = h->elf.root.root.string; |
| 14213 | ||
| 14214 | if (*name == '.') | |
| 14215 | ++name; | |
| 14216 | ||
| 14217 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14218 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14219 | { |
| ba8ca3e7 AM |
14220 | /* Allow crt1 branch to go via a toc adjusting |
| 14221 | stub. Other calls that never return could do | |
| 14222 | the same, if we could detect such. */ | |
| b25116a9 | 14223 | can_plt_call = TRUE; |
| 6ab189d5 | 14224 | } |
| ba8ca3e7 AM |
14225 | } |
| 14226 | ||
| 14227 | if (!can_plt_call) | |
| 14228 | { | |
| 14229 | /* g++ as of 20130507 emits self-calls without a | |
| 14230 | following nop. This is arguably wrong since we | |
| 14231 | have conflicting information. On the one hand a | |
| 14232 | global symbol and on the other a local call | |
| 14233 | sequence, but don't error for this special case. | |
| 14234 | It isn't possible to cheaply verify we have | |
| 14235 | exactly such a call. Allow all calls to the same | |
| 14236 | section. */ | |
| 14237 | asection *code_sec = sec; | |
| 14238 | ||
| 14239 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14240 | { |
| ba8ca3e7 AM |
14241 | bfd_vma off = (relocation + addend |
| 14242 | - sec->output_section->vma | |
| 14243 | - sec->output_offset); | |
| bc30df16 | 14244 | |
| ba8ca3e7 | 14245 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14246 | } |
| ba8ca3e7 AM |
14247 | if (code_sec == input_section) |
| 14248 | can_plt_call = TRUE; | |
| 14249 | } | |
| 14250 | ||
| 14251 | if (!can_plt_call) | |
| 14252 | { | |
| 4805fc55 AM |
14253 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14254 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14255 | info->callbacks->einfo | |
| 695344c0 | 14256 | /* xgettext:c-format */ |
| 174d0a74 | 14257 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14258 | "recompile with -fPIC\n"), |
| 14259 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14260 | else | |
| 14261 | info->callbacks->einfo | |
| 695344c0 | 14262 | /* xgettext:c-format */ |
| 174d0a74 | 14263 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14264 | "(-mcmodel=small toc adjust stub)\n"), |
| 14265 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14266 | |
| 14267 | bfd_set_error (bfd_error_bad_value); | |
| 14268 | ret = FALSE; | |
| 721956f4 AM |
14269 | } |
| 14270 | ||
| b25116a9 | 14271 | if (can_plt_call |
| 794e51c0 AM |
14272 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14273 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14274 | unresolved_reloc = FALSE; |
| 14275 | } | |
| 14276 | ||
| 6abec6bc AM |
14277 | if ((stub_entry == NULL |
| 14278 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14279 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14280 | && get_opd_info (sec) != NULL) |
| 14281 | { | |
| 14282 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14283 | bfd_vma off = (relocation + addend |
| 14284 | - sec->output_section->vma | |
| 14285 | - sec->output_offset); | |
| aef36ac1 | 14286 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14287 | if (dest != (bfd_vma) -1) |
| 14288 | { | |
| 14289 | relocation = dest; | |
| 14290 | addend = 0; | |
| bc30df16 | 14291 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14292 | } |
| 14293 | } | |
| 14294 | ||
| b25116a9 AM |
14295 | /* If the branch is out of reach we ought to have a long |
| 14296 | branch stub. */ | |
| 14297 | from = (rel->r_offset | |
| 14298 | + input_section->output_offset | |
| 14299 | + input_section->output_section->vma); | |
| 14300 | ||
| 6911b7dc AM |
14301 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14302 | ? fdh->elf.other | |
| 14303 | : sym->st_other); | |
| 14304 | ||
| 6abec6bc AM |
14305 | if (stub_entry != NULL |
| 14306 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14307 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14308 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14309 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14310 | || (relocation + addend - from + max_br_offset | |
| 14311 | < 2 * max_br_offset))) | |
| 14312 | /* Don't use the stub if this branch is in range. */ | |
| 14313 | stub_entry = NULL; | |
| b25116a9 AM |
14314 | |
| 14315 | if (stub_entry != NULL) | |
| 14316 | { | |
| 14317 | /* Munge up the value and addend so that we call the stub | |
| 14318 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14319 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14320 | ||
| 14321 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14322 | relocation += (stub_sec->output_offset | |
| 14323 | + stub_sec->output_section->vma | |
| 14324 | + stub_sec->size - htab->sfpr->size | |
| 14325 | - htab->sfpr->output_offset | |
| 14326 | - htab->sfpr->output_section->vma); | |
| 14327 | else | |
| 14328 | relocation = (stub_entry->stub_offset | |
| 14329 | + stub_sec->output_offset | |
| 14330 | + stub_sec->output_section->vma); | |
| b25116a9 | 14331 | addend = 0; |
| bc30df16 | 14332 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14333 | |
| 954b63d4 | 14334 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14335 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14336 | && (ALWAYS_EMIT_R2SAVE | |
| 14337 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14338 | && rel + 1 < relend |
| 14339 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14340 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14341 | relocation += 4; | |
| b25116a9 AM |
14342 | } |
| 14343 | ||
| 14344 | if (insn != 0) | |
| 14345 | { | |
| 794e51c0 | 14346 | if (is_isa_v2) |
| 721956f4 | 14347 | { |
| b25116a9 AM |
14348 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14349 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14350 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14351 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14352 | insn |= 0x02 << 21; | |
| 14353 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14354 | insn |= 0x08 << 21; | |
| 14355 | else | |
| 14356 | break; | |
| 14357 | } | |
| 14358 | else | |
| 14359 | { | |
| 14360 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14361 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14362 | insn ^= 0x01 << 21; |
| 721956f4 | 14363 | } |
| b25116a9 | 14364 | |
| 95f0d0d2 | 14365 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14366 | } |
| e86ce104 | 14367 | |
| 06da1e8e AM |
14368 | /* NOP out calls to undefined weak functions. |
| 14369 | We can thus call a weak function without first | |
| 14370 | checking whether the function is defined. */ | |
| b25116a9 | 14371 | else if (h != NULL |
| 039b3fef | 14372 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14373 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14374 | && r_type == R_PPC64_REL24 |
| 14375 | && relocation == 0 | |
| 4cc603a5 | 14376 | && addend == 0) |
| e86ce104 | 14377 | { |
| 95f0d0d2 | 14378 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14379 | goto copy_reloc; |
| e86ce104 | 14380 | } |
| 65f38f15 AM |
14381 | break; |
| 14382 | } | |
| 5bd4f169 | 14383 | |
| 65f38f15 | 14384 | /* Set `addend'. */ |
| 411e1bfb | 14385 | tls_type = 0; |
| 65f38f15 AM |
14386 | switch (r_type) |
| 14387 | { | |
| 14388 | default: | |
| 25f53a85 | 14389 | info->callbacks->einfo |
| 695344c0 | 14390 | /* xgettext:c-format */ |
| bc30df16 | 14391 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14392 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14393 | |
| 65f38f15 | 14394 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14395 | ret = FALSE; |
| c316a17c | 14396 | goto copy_reloc; |
| 5bd4f169 | 14397 | |
| 65f38f15 | 14398 | case R_PPC64_NONE: |
| 411e1bfb | 14399 | case R_PPC64_TLS: |
| 727fc41e AM |
14400 | case R_PPC64_TLSGD: |
| 14401 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14402 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14403 | case R_PPC64_GNU_VTINHERIT: |
| 14404 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14405 | case R_PPC64_ENTRY: |
| c316a17c | 14406 | goto copy_reloc; |
| 5bd4f169 AM |
14407 | |
| 14408 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14409 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14410 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14411 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14412 | case R_PPC64_GOT_TLSGD16: |
| 14413 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14414 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14415 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14416 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14417 | goto dogot; |
| 14418 | ||
| 14419 | case R_PPC64_GOT_TLSLD16: | |
| 14420 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14421 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14422 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14423 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14424 | goto dogot; |
| 14425 | ||
| 14426 | case R_PPC64_GOT_TPREL16_DS: | |
| 14427 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14428 | case R_PPC64_GOT_TPREL16_HI: | |
| 14429 | case R_PPC64_GOT_TPREL16_HA: | |
| 14430 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14431 | goto dogot; | |
| 14432 | ||
| 14433 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14434 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14435 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14436 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14437 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14438 | goto dogot; | |
| 14439 | ||
| 65f38f15 AM |
14440 | case R_PPC64_GOT16: |
| 14441 | case R_PPC64_GOT16_LO: | |
| 14442 | case R_PPC64_GOT16_HI: | |
| 14443 | case R_PPC64_GOT16_HA: | |
| 14444 | case R_PPC64_GOT16_DS: | |
| 14445 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14446 | dogot: |
| 5bd4f169 AM |
14447 | { |
| 14448 | /* Relocation is to the entry for this symbol in the global | |
| 14449 | offset table. */ | |
| e717da7e | 14450 | asection *got; |
| d881513a | 14451 | bfd_vma *offp; |
| 5bd4f169 | 14452 | bfd_vma off; |
| d881513a | 14453 | unsigned long indx = 0; |
| 927be08e | 14454 | struct got_entry *ent; |
| 65f38f15 | 14455 | |
| d881513a AM |
14456 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14457 | && (h == NULL | |
| f5385ebf | 14458 | || !h->elf.def_dynamic)) |
| 927be08e | 14459 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14460 | else |
| 5bd4f169 | 14461 | { |
| d881513a AM |
14462 | if (h != NULL) |
| 14463 | { | |
| f0158f44 AM |
14464 | if (!htab->elf.dynamic_sections_created |
| 14465 | || h->elf.dynindx == -1 | |
| 14466 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 14467 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
14468 | /* This is actually a static link, or it is a |
| 14469 | -Bsymbolic link and the symbol is defined | |
| 14470 | locally, or the symbol was forced to be local | |
| 14471 | because of a version file. */ | |
| 14472 | ; | |
| 14473 | else | |
| 14474 | { | |
| 039b3fef | 14475 | indx = h->elf.dynindx; |
| d881513a AM |
14476 | unresolved_reloc = FALSE; |
| 14477 | } | |
| 039b3fef | 14478 | ent = h->elf.got.glist; |
| d881513a | 14479 | } |
| 411e1bfb | 14480 | else |
| 5bd4f169 | 14481 | { |
| d881513a AM |
14482 | if (local_got_ents == NULL) |
| 14483 | abort (); | |
| 14484 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14485 | } |
| d881513a AM |
14486 | |
| 14487 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14488 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14489 | && ent->owner == input_bfd |
| d881513a AM |
14490 | && ent->tls_type == tls_type) |
| 14491 | break; | |
| 5bd4f169 | 14492 | } |
| 411e1bfb | 14493 | |
| 927be08e AM |
14494 | if (ent == NULL) |
| 14495 | abort (); | |
| 14496 | if (ent->is_indirect) | |
| 14497 | ent = ent->got.ent; | |
| 14498 | offp = &ent->got.offset; | |
| 14499 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14500 | if (got == NULL) |
| 14501 | abort (); | |
| 14502 | ||
| 411e1bfb AM |
14503 | /* The offset must always be a multiple of 8. We use the |
| 14504 | least significant bit to record whether we have already | |
| 14505 | processed this entry. */ | |
| d881513a | 14506 | off = *offp; |
| 411e1bfb AM |
14507 | if ((off & 1) != 0) |
| 14508 | off &= ~1; | |
| 5bd4f169 AM |
14509 | else |
| 14510 | { | |
| 411e1bfb AM |
14511 | /* Generate relocs for the dynamic linker, except in |
| 14512 | the case of TLSLD where we'll use one entry per | |
| 14513 | module. */ | |
| 25f23106 AM |
14514 | asection *relgot; |
| 14515 | bfd_boolean ifunc; | |
| e717da7e | 14516 | |
| d881513a | 14517 | *offp = off | 1; |
| 25f23106 AM |
14518 | relgot = NULL; |
| 14519 | ifunc = (h != NULL | |
| 14520 | ? h->elf.type == STT_GNU_IFUNC | |
| 14521 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14522 | if (ifunc) |
| 82e66161 AM |
14523 | { |
| 14524 | relgot = htab->elf.irelplt; | |
| 14525 | if (indx == 0) | |
| 14526 | htab->local_ifunc_resolver = 1; | |
| 14527 | else if (is_static_defined (&h->elf)) | |
| 14528 | htab->maybe_local_ifunc_resolver = 1; | |
| 14529 | } | |
| f0158f44 AM |
14530 | else if (indx != 0 |
| 14531 | || (bfd_link_pic (info) | |
| 14532 | && (h == NULL | |
| 21d68fcd | 14533 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 | 14534 | || (tls_type == (TLS_TLS | TLS_LD) |
| f15d0b54 AM |
14535 | && !h->elf.def_dynamic)) |
| 14536 | && !(tls_type == (TLS_TLS | TLS_TPREL) | |
| 14537 | && bfd_link_executable (info) | |
| 14538 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))) | |
| 19e08130 | 14539 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14540 | if (relgot != NULL) |
| 5bd4f169 | 14541 | { |
| e717da7e AM |
14542 | outrel.r_offset = (got->output_section->vma |
| 14543 | + got->output_offset | |
| 411e1bfb | 14544 | + off); |
| 4cc603a5 | 14545 | outrel.r_addend = addend; |
| d881513a | 14546 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14547 | { |
| 411e1bfb | 14548 | outrel.r_addend = 0; |
| e515b051 | 14549 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14550 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14551 | { | |
| e717da7e AM |
14552 | loc = relgot->contents; |
| 14553 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14554 | * sizeof (Elf64_External_Rela)); |
| 14555 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14556 | &outrel, loc); | |
| e515b051 | 14557 | outrel.r_offset += 8; |
| 4cc603a5 | 14558 | outrel.r_addend = addend; |
| d881513a AM |
14559 | outrel.r_info |
| 14560 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14561 | } |
| 411e1bfb | 14562 | } |
| 951fd09b | 14563 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14564 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14565 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14566 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14567 | else if (indx != 0) |
| 14568 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14569 | else | |
| 81407a69 | 14570 | { |
| 25f23106 AM |
14571 | if (ifunc) |
| 14572 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14573 | else | |
| 14574 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14575 | |
| 14576 | /* Write the .got section contents for the sake | |
| 14577 | of prelink. */ | |
| e717da7e | 14578 | loc = got->contents + off; |
| 23fbd6fa JJ |
14579 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14580 | loc); | |
| 81407a69 | 14581 | } |
| 81407a69 AM |
14582 | |
| 14583 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14584 | { |
| 14585 | outrel.r_addend += relocation; | |
| 14586 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14587 | { |
| 14588 | if (htab->elf.tls_sec == NULL) | |
| 14589 | outrel.r_addend = 0; | |
| 14590 | else | |
| 14591 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14592 | } | |
| e515b051 | 14593 | } |
| e717da7e AM |
14594 | loc = relgot->contents; |
| 14595 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14596 | * sizeof (Elf64_External_Rela)); |
| 14597 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14598 | } | |
| 14599 | ||
| ad8e1ba5 | 14600 | /* Init the .got section contents here if we're not |
| 81407a69 | 14601 | emitting a reloc. */ |
| d881513a | 14602 | else |
| 411e1bfb | 14603 | { |
| 4cc603a5 | 14604 | relocation += addend; |
| f0158f44 | 14605 | if (tls_type != 0) |
| 411e1bfb | 14606 | { |
| 989f9879 AM |
14607 | if (htab->elf.tls_sec == NULL) |
| 14608 | relocation = 0; | |
| 14609 | else | |
| 14610 | { | |
| f0158f44 AM |
14611 | if (tls_type & TLS_LD) |
| 14612 | relocation = 0; | |
| 14613 | else | |
| 14614 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 14615 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
14616 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14617 | } | |
| 5bd4f169 | 14618 | |
| f0158f44 | 14619 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14620 | { |
| 14621 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14622 | got->contents + off + 8); |
| 676ee2b5 | 14623 | relocation = 1; |
| 7b609f53 | 14624 | } |
| 411e1bfb AM |
14625 | } |
| 14626 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14627 | got->contents + off); |
| 5bd4f169 AM |
14628 | } |
| 14629 | } | |
| 14630 | ||
| 65f38f15 AM |
14631 | if (off >= (bfd_vma) -2) |
| 14632 | abort (); | |
| 14633 | ||
| bf102f86 | 14634 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14635 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14636 | } |
| 65f38f15 AM |
14637 | break; |
| 14638 | ||
| 14639 | case R_PPC64_PLT16_HA: | |
| 14640 | case R_PPC64_PLT16_HI: | |
| 14641 | case R_PPC64_PLT16_LO: | |
| 14642 | case R_PPC64_PLT32: | |
| 14643 | case R_PPC64_PLT64: | |
| 14644 | /* Relocation is to the entry for this symbol in the | |
| 14645 | procedure linkage table. */ | |
| cbf95972 AM |
14646 | { |
| 14647 | struct plt_entry **plt_list = NULL; | |
| 14648 | if (h != NULL) | |
| 14649 | plt_list = &h->elf.plt.plist; | |
| 14650 | else if (local_got_ents != NULL) | |
| 14651 | { | |
| 14652 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14653 | (local_got_ents + symtab_hdr->sh_info); | |
| 14654 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14655 | (local_plt + symtab_hdr->sh_info); | |
| 14656 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14657 | plt_list = local_plt + r_symndx; | |
| 14658 | } | |
| 14659 | if (plt_list) | |
| 14660 | { | |
| 14661 | struct plt_entry *ent; | |
| 65f38f15 | 14662 | |
| cbf95972 AM |
14663 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14664 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14665 | && ent->addend == orig_rel.r_addend) | |
| 14666 | { | |
| 14667 | asection *plt; | |
| 14668 | ||
| 14669 | plt = htab->elf.splt; | |
| 14670 | if (!htab->elf.dynamic_sections_created | |
| 14671 | || h == NULL | |
| 14672 | || h->elf.dynindx == -1) | |
| 14673 | plt = htab->elf.iplt; | |
| 14674 | relocation = (plt->output_section->vma | |
| 14675 | + plt->output_offset | |
| 14676 | + ent->plt.offset); | |
| 14677 | addend = 0; | |
| 14678 | unresolved_reloc = FALSE; | |
| 14679 | break; | |
| 14680 | } | |
| 14681 | } | |
| 14682 | } | |
| 65f38f15 | 14683 | break; |
| 5bd4f169 | 14684 | |
| 0b13192e AM |
14685 | case R_PPC64_TOC: |
| 14686 | /* Relocation value is TOC base. */ | |
| 14687 | relocation = TOCstart; | |
| cf35638d | 14688 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14689 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14690 | else if (unresolved_reloc) |
| 14691 | ; | |
| 6f20ed8a AM |
14692 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14693 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14694 | else |
| 14695 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14696 | goto dodyn; |
| 0b13192e | 14697 | |
| 5bd4f169 AM |
14698 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14699 | which is the address of the start of the TOC plus 0x8000. | |
| 14700 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14701 | in this order. */ | |
| 65f38f15 AM |
14702 | case R_PPC64_TOC16: |
| 14703 | case R_PPC64_TOC16_LO: | |
| 14704 | case R_PPC64_TOC16_HI: | |
| 14705 | case R_PPC64_TOC16_DS: | |
| 14706 | case R_PPC64_TOC16_LO_DS: | |
| 14707 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14708 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14709 | break; |
| 14710 | ||
| 14711 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14712 | case R_PPC64_SECTOFF: |
| 14713 | case R_PPC64_SECTOFF_LO: | |
| 14714 | case R_PPC64_SECTOFF_HI: | |
| 14715 | case R_PPC64_SECTOFF_DS: | |
| 14716 | case R_PPC64_SECTOFF_LO_DS: | |
| 14717 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14718 | if (sec != NULL) |
| 65f38f15 | 14719 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14720 | break; |
| 14721 | ||
| 25f23106 AM |
14722 | case R_PPC64_REL16: |
| 14723 | case R_PPC64_REL16_LO: | |
| 14724 | case R_PPC64_REL16_HI: | |
| 14725 | case R_PPC64_REL16_HA: | |
| a680de9a | 14726 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14727 | break; |
| 14728 | ||
| 721956f4 AM |
14729 | case R_PPC64_REL14: |
| 14730 | case R_PPC64_REL14_BRNTAKEN: | |
| 14731 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14732 | case R_PPC64_REL24: |
| 14733 | break; | |
| 14734 | ||
| 411e1bfb AM |
14735 | case R_PPC64_TPREL16: |
| 14736 | case R_PPC64_TPREL16_LO: | |
| 14737 | case R_PPC64_TPREL16_HI: | |
| 14738 | case R_PPC64_TPREL16_HA: | |
| 14739 | case R_PPC64_TPREL16_DS: | |
| 14740 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14741 | case R_PPC64_TPREL16_HIGH: |
| 14742 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14743 | case R_PPC64_TPREL16_HIGHER: |
| 14744 | case R_PPC64_TPREL16_HIGHERA: | |
| 14745 | case R_PPC64_TPREL16_HIGHEST: | |
| 14746 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14747 | if (h != NULL |
| 14748 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14749 | && h->elf.dynindx == -1) | |
| 14750 | { | |
| 14751 | /* Make this relocation against an undefined weak symbol | |
| 14752 | resolve to zero. This is really just a tweak, since | |
| 14753 | code using weak externs ought to check that they are | |
| 14754 | defined before using them. */ | |
| 14755 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14756 | ||
| 95f0d0d2 | 14757 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14758 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14759 | if (insn != 0) | |
| 95f0d0d2 | 14760 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14761 | break; |
| 14762 | } | |
| 989f9879 AM |
14763 | if (htab->elf.tls_sec != NULL) |
| 14764 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
14765 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14766 | libs or with non-local symbols as that will result in | |
| 14767 | DT_TEXTREL being set, but support them anyway. */ | |
| 14768 | goto dodyn; | |
| 411e1bfb AM |
14769 | |
| 14770 | case R_PPC64_DTPREL16: | |
| 14771 | case R_PPC64_DTPREL16_LO: | |
| 14772 | case R_PPC64_DTPREL16_HI: | |
| 14773 | case R_PPC64_DTPREL16_HA: | |
| 14774 | case R_PPC64_DTPREL16_DS: | |
| 14775 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14776 | case R_PPC64_DTPREL16_HIGH: |
| 14777 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14778 | case R_PPC64_DTPREL16_HIGHER: |
| 14779 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14780 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14781 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14782 | if (htab->elf.tls_sec != NULL) |
| 14783 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14784 | break; |
| 14785 | ||
| 45965137 AM |
14786 | case R_PPC64_ADDR64_LOCAL: |
| 14787 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14788 | ? h->elf.other | |
| 14789 | : sym->st_other); | |
| 14790 | break; | |
| 14791 | ||
| e515b051 AM |
14792 | case R_PPC64_DTPMOD64: |
| 14793 | relocation = 1; | |
| 14794 | addend = 0; | |
| 14795 | goto dodyn; | |
| 14796 | ||
| 411e1bfb | 14797 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14798 | if (htab->elf.tls_sec != NULL) |
| 14799 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14800 | goto dodyn; |
| 14801 | ||
| 14802 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14803 | if (htab->elf.tls_sec != NULL) |
| 14804 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14805 | /* Fall through. */ |
| 411e1bfb | 14806 | |
| 65f38f15 AM |
14807 | /* Relocations that may need to be propagated if this is a |
| 14808 | dynamic object. */ | |
| 04c9666a | 14809 | case R_PPC64_REL30: |
| 65f38f15 AM |
14810 | case R_PPC64_REL32: |
| 14811 | case R_PPC64_REL64: | |
| 14812 | case R_PPC64_ADDR14: | |
| 14813 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14814 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14815 | case R_PPC64_ADDR16: | |
| 14816 | case R_PPC64_ADDR16_DS: | |
| 14817 | case R_PPC64_ADDR16_HA: | |
| 14818 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14819 | case R_PPC64_ADDR16_HIGH: |
| 14820 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14821 | case R_PPC64_ADDR16_HIGHER: |
| 14822 | case R_PPC64_ADDR16_HIGHERA: | |
| 14823 | case R_PPC64_ADDR16_HIGHEST: | |
| 14824 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14825 | case R_PPC64_ADDR16_LO: | |
| 14826 | case R_PPC64_ADDR16_LO_DS: | |
| 14827 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14828 | case R_PPC64_ADDR32: |
| 14829 | case R_PPC64_ADDR64: | |
| 14830 | case R_PPC64_UADDR16: | |
| 14831 | case R_PPC64_UADDR32: | |
| 14832 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14833 | dodyn: |
| 5d1634d7 | 14834 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14835 | break; |
| 14836 | ||
| 41bd81ab AM |
14837 | if (NO_OPD_RELOCS && is_opd) |
| 14838 | break; | |
| 14839 | ||
| 8a9e8e72 | 14840 | if (bfd_link_pic (info) |
| b1b07054 AM |
14841 | ? ((h == NULL |
| 14842 | || h->dyn_relocs != NULL) | |
| 14843 | && ((h != NULL && pc_dynrelocs (h)) | |
| 14844 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
14845 | : (h != NULL |
| 14846 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14847 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14848 | { |
| b34976b6 | 14849 | bfd_boolean skip, relocate; |
| 65f38f15 | 14850 | asection *sreloc; |
| 1cf1f670 | 14851 | bfd_vma out_off; |
| 82e66161 | 14852 | long indx = 0; |
| 65f38f15 AM |
14853 | |
| 14854 | /* When generating a dynamic object, these relocations | |
| 14855 | are copied into the output file to be resolved at run | |
| 14856 | time. */ | |
| 14857 | ||
| b34976b6 AM |
14858 | skip = FALSE; |
| 14859 | relocate = FALSE; | |
| 65f38f15 | 14860 | |
| 1cf1f670 AM |
14861 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14862 | input_section, rel->r_offset); | |
| 14863 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14864 | skip = TRUE; |
| 1cf1f670 | 14865 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14866 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14867 | out_off += (input_section->output_section->vma |
| 14868 | + input_section->output_offset); | |
| 14869 | outrel.r_offset = out_off; | |
| 411e1bfb | 14870 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14871 | |
| 1cf1f670 AM |
14872 | /* Optimize unaligned reloc use. */ |
| 14873 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14874 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14875 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14876 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14877 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14878 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14879 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14880 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14881 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14882 | ||
| 65f38f15 | 14883 | if (skip) |
| 0bb2d96a | 14884 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14885 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14886 | && !is_opd |
| 14887 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 14888 | { |
| 82e66161 AM |
14889 | indx = h->elf.dynindx; |
| 14890 | BFD_ASSERT (indx != -1); | |
| 14891 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 14892 | } |
| 65f38f15 AM |
14893 | else |
| 14894 | { | |
| 41bd81ab AM |
14895 | /* This symbol is local, or marked to become local, |
| 14896 | or this is an opd section reloc which must point | |
| 14897 | at a local function. */ | |
| 65f38f15 | 14898 | outrel.r_addend += relocation; |
| e86ce104 | 14899 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14900 | { |
| 3fad3c7c | 14901 | if (is_opd && h != NULL) |
| afbe61cf AM |
14902 | { |
| 14903 | /* Lie about opd entries. This case occurs | |
| 14904 | when building shared libraries and we | |
| 14905 | reference a function in another shared | |
| 3fad3c7c AM |
14906 | lib. The same thing happens for a weak |
| 14907 | definition in an application that's | |
| 14908 | overridden by a strong definition in a | |
| 14909 | shared lib. (I believe this is a generic | |
| 14910 | bug in binutils handling of weak syms.) | |
| 14911 | In these cases we won't use the opd | |
| 1e2f5b6e | 14912 | entry in this lib. */ |
| b34976b6 | 14913 | unresolved_reloc = FALSE; |
| afbe61cf | 14914 | } |
| 25f23106 AM |
14915 | if (!is_opd |
| 14916 | && r_type == R_PPC64_ADDR64 | |
| 14917 | && (h != NULL | |
| 14918 | ? h->elf.type == STT_GNU_IFUNC | |
| 14919 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14920 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14921 | else | |
| 14922 | { | |
| 14923 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14924 | |
| 25f23106 AM |
14925 | /* We need to relocate .opd contents for ld.so. |
| 14926 | Prelink also wants simple and consistent rules | |
| 14927 | for relocs. This make all RELATIVE relocs have | |
| 14928 | *r_offset equal to r_addend. */ | |
| 14929 | relocate = TRUE; | |
| 14930 | } | |
| 65f38f15 AM |
14931 | } |
| 14932 | else | |
| 14933 | { | |
| 25f23106 AM |
14934 | if (h != NULL |
| 14935 | ? h->elf.type == STT_GNU_IFUNC | |
| 14936 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14937 | { | |
| 25f53a85 | 14938 | info->callbacks->einfo |
| 695344c0 | 14939 | /* xgettext:c-format */ |
| 174d0a74 | 14940 | (_("%H: %s for indirect " |
| bc30df16 | 14941 | "function `%T' unsupported\n"), |
| 25f53a85 | 14942 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14943 | ppc64_elf_howto_table[r_type]->name, |
| 14944 | sym_name); | |
| 14945 | ret = FALSE; | |
| 14946 | } | |
| cf35638d | 14947 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14948 | ; |
| 14949 | else if (sec == NULL || sec->owner == NULL) | |
| 14950 | { | |
| 14951 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14952 | return FALSE; |
| 65f38f15 AM |
14953 | } |
| 14954 | else | |
| 14955 | { | |
| 14956 | asection *osec; | |
| 14957 | ||
| 14958 | osec = sec->output_section; | |
| 14959 | indx = elf_section_data (osec)->dynindx; | |
| 14960 | ||
| 74541ad4 AM |
14961 | if (indx == 0) |
| 14962 | { | |
| 14963 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14964 | && htab->elf.data_index_section != NULL) | |
| 14965 | osec = htab->elf.data_index_section; | |
| 14966 | else | |
| 14967 | osec = htab->elf.text_index_section; | |
| 14968 | indx = elf_section_data (osec)->dynindx; | |
| 14969 | } | |
| 14970 | BFD_ASSERT (indx != 0); | |
| 14971 | ||
| 65f38f15 AM |
14972 | /* We are turning this relocation into one |
| 14973 | against a section symbol, so subtract out | |
| 14974 | the output section's address but not the | |
| 14975 | offset of the input section in the output | |
| 14976 | section. */ | |
| 14977 | outrel.r_addend -= osec->vma; | |
| 14978 | } | |
| 14979 | ||
| 14980 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14981 | } | |
| 14982 | } | |
| 14983 | ||
| 14984 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14985 | if (h != NULL |
| 14986 | ? h->elf.type == STT_GNU_IFUNC | |
| 14987 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
14988 | { |
| 14989 | sreloc = htab->elf.irelplt; | |
| 14990 | if (indx == 0) | |
| 14991 | htab->local_ifunc_resolver = 1; | |
| 14992 | else if (is_static_defined (&h->elf)) | |
| 14993 | htab->maybe_local_ifunc_resolver = 1; | |
| 14994 | } | |
| 65f38f15 AM |
14995 | if (sreloc == NULL) |
| 14996 | abort (); | |
| 14997 | ||
| dfbb6ac9 AM |
14998 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14999 | >= sreloc->size) | |
| 15000 | abort (); | |
| 947216bf AM |
15001 | loc = sreloc->contents; |
| 15002 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
15003 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 15004 | ||
| 15005 | /* If this reloc is against an external symbol, it will | |
| 15006 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
15007 | anything now. However, for the sake of prelink ensure |
| 15008 | that the section contents are a known value. */ | |
| 65f38f15 | 15009 | if (! relocate) |
| 81407a69 AM |
15010 | { |
| 15011 | unresolved_reloc = FALSE; | |
| 15012 | /* The value chosen here is quite arbitrary as ld.so | |
| 15013 | ignores section contents except for the special | |
| 15014 | case of .opd where the contents might be accessed | |
| 15015 | before relocation. Choose zero, as that won't | |
| 15016 | cause reloc overflow. */ | |
| 15017 | relocation = 0; | |
| 15018 | addend = 0; | |
| 15019 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 15020 | to improve backward compatibility with older | |
| 15021 | versions of ld. */ | |
| 15022 | if (r_type == R_PPC64_ADDR64) | |
| 15023 | addend = outrel.r_addend; | |
| 15024 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 15025 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 15026 | addend = outrel.r_offset; |
| 81407a69 | 15027 | } |
| 65f38f15 | 15028 | } |
| 5bd4f169 AM |
15029 | break; |
| 15030 | ||
| 65f38f15 AM |
15031 | case R_PPC64_COPY: |
| 15032 | case R_PPC64_GLOB_DAT: | |
| 15033 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15034 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15035 | case R_PPC64_RELATIVE: |
| 15036 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15037 | files. */ | |
| ae9a127f | 15038 | /* Fall through. */ |
| 65f38f15 AM |
15039 | |
| 15040 | case R_PPC64_PLTGOT16: | |
| 15041 | case R_PPC64_PLTGOT16_DS: | |
| 15042 | case R_PPC64_PLTGOT16_HA: | |
| 15043 | case R_PPC64_PLTGOT16_HI: | |
| 15044 | case R_PPC64_PLTGOT16_LO: | |
| 15045 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15046 | case R_PPC64_PLTREL32: | |
| 15047 | case R_PPC64_PLTREL64: | |
| 15048 | /* These ones haven't been implemented yet. */ | |
| 15049 | ||
| 25f53a85 | 15050 | info->callbacks->einfo |
| 695344c0 | 15051 | /* xgettext:c-format */ |
| bc30df16 | 15052 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 15053 | input_bfd, |
| 4ce794b7 | 15054 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15055 | |
| 15056 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15057 | ret = FALSE; |
| c316a17c | 15058 | goto copy_reloc; |
| 65f38f15 | 15059 | } |
| 5bd4f169 | 15060 | |
| 67f0cbdb AM |
15061 | /* Multi-instruction sequences that access the TOC can be |
| 15062 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 07d6d2b8 | 15063 | to nop; addi rb,r2,x; */ |
| 9a23f96e | 15064 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 67f0cbdb AM |
15065 | switch (r_type) |
| 15066 | { | |
| 15067 | default: | |
| 15068 | break; | |
| 15069 | ||
| 15070 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15071 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15072 | case R_PPC64_GOT_TPREL16_HI: | |
| 15073 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15074 | case R_PPC64_GOT16_HI: | |
| 15075 | case R_PPC64_TOC16_HI: | |
| 15076 | /* These relocs would only be useful if building up an | |
| 15077 | offset to later add to r2, perhaps in an indexed | |
| 15078 | addressing mode instruction. Don't try to optimize. | |
| 15079 | Unfortunately, the possibility of someone building up an | |
| 15080 | offset like this or even with the HA relocs, means that | |
| 15081 | we need to check the high insn when optimizing the low | |
| 15082 | insn. */ | |
| 15083 | break; | |
| 15084 | ||
| 15085 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15086 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15087 | case R_PPC64_GOT_TPREL16_HA: | |
| 15088 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15089 | case R_PPC64_GOT16_HA: | |
| 15090 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15091 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15092 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15093 | { |
| 15094 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15095 | bfd_put_32 (input_bfd, NOP, p); | |
| 15096 | } | |
| 67f0cbdb AM |
15097 | break; |
| 15098 | ||
| 15099 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15100 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15101 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15102 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15103 | case R_PPC64_GOT16_LO: | |
| 15104 | case R_PPC64_GOT16_LO_DS: | |
| 15105 | case R_PPC64_TOC16_LO: | |
| 15106 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15107 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15108 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15109 | { |
| 15110 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15111 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15112 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15113 | { | |
| 15114 | /* Transform addic to addi when we change reg. */ | |
| 15115 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15116 | insn |= (14u << 26) | (2 << 16); | |
| 15117 | } | |
| 15118 | else | |
| 67f0cbdb | 15119 | { |
| 98528052 AM |
15120 | insn &= ~(0x1f << 16); |
| 15121 | insn |= 2 << 16; | |
| 67f0cbdb | 15122 | } |
| 560c8763 | 15123 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15124 | } |
| 15125 | break; | |
| 9a23f96e AM |
15126 | |
| 15127 | case R_PPC64_TPREL16_HA: | |
| 15128 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15129 | { | |
| 15130 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15131 | insn = bfd_get_32 (input_bfd, p); | |
| 15132 | if ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 15133 | != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */) | |
| 15134 | /* xgettext:c-format */ | |
| 15135 | info->callbacks->minfo | |
| 15136 | (_("%H: warning: %s unexpected insn %#x.\n"), | |
| 15137 | input_bfd, input_section, rel->r_offset, howto->name, insn); | |
| 15138 | else | |
| 15139 | bfd_put_32 (input_bfd, NOP, p); | |
| 15140 | } | |
| 15141 | break; | |
| 15142 | ||
| 15143 | case R_PPC64_TPREL16_LO: | |
| 15144 | case R_PPC64_TPREL16_LO_DS: | |
| 15145 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15146 | { | |
| 15147 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15148 | insn = bfd_get_32 (input_bfd, p); | |
| 15149 | insn &= ~(0x1f << 16); | |
| 15150 | insn |= 13 << 16; | |
| 15151 | bfd_put_32 (input_bfd, insn, p); | |
| 15152 | } | |
| 15153 | break; | |
| 67f0cbdb AM |
15154 | } |
| 15155 | ||
| 65f38f15 AM |
15156 | /* Do any further special processing. */ |
| 15157 | switch (r_type) | |
| 15158 | { | |
| 15159 | default: | |
| 15160 | break; | |
| 15161 | ||
| 25f23106 | 15162 | case R_PPC64_REL16_HA: |
| a680de9a | 15163 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15164 | case R_PPC64_ADDR16_HA: |
| 15165 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15166 | case R_PPC64_ADDR16_HIGHERA: |
| 15167 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15168 | case R_PPC64_TOC16_HA: |
| 15169 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15170 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15171 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15172 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15173 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15174 | case R_PPC64_DTPREL16_HA: |
| 15175 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15176 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15177 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15178 | /* It's just possible that this symbol is a weak symbol |
| 15179 | that's not actually defined anywhere. In that case, | |
| 15180 | 'sec' would be NULL, and we should leave the symbol | |
| 15181 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15182 | if (sec == NULL) |
| 15183 | break; | |
| 1a0670f3 | 15184 | /* Fall through. */ |
| 5c5f6e17 AM |
15185 | |
| 15186 | case R_PPC64_GOT16_HA: | |
| 15187 | case R_PPC64_PLTGOT16_HA: | |
| 15188 | case R_PPC64_PLT16_HA: | |
| 15189 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15190 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15191 | case R_PPC64_GOT_TPREL16_HA: | |
| 15192 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15193 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15194 | Bits 0:15 are not used. */ | |
| 15195 | addend += 0x8000; | |
| 65f38f15 AM |
15196 | break; |
| 15197 | ||
| 15198 | case R_PPC64_ADDR16_DS: | |
| 15199 | case R_PPC64_ADDR16_LO_DS: | |
| 15200 | case R_PPC64_GOT16_DS: | |
| 15201 | case R_PPC64_GOT16_LO_DS: | |
| 15202 | case R_PPC64_PLT16_LO_DS: | |
| 15203 | case R_PPC64_SECTOFF_DS: | |
| 15204 | case R_PPC64_SECTOFF_LO_DS: | |
| 15205 | case R_PPC64_TOC16_DS: | |
| 15206 | case R_PPC64_TOC16_LO_DS: | |
| 15207 | case R_PPC64_PLTGOT16_DS: | |
| 15208 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15209 | case R_PPC64_GOT_TPREL16_DS: |
| 15210 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15211 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15212 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15213 | case R_PPC64_TPREL16_DS: | |
| 15214 | case R_PPC64_TPREL16_LO_DS: | |
| 15215 | case R_PPC64_DTPREL16_DS: | |
| 15216 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15217 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15218 | mask = 3; | |
| a680de9a PB |
15219 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15220 | the value must be a multiple of 16. This is somewhat of | |
| 15221 | a hack, but the "correct" way to do this by defining _DQ | |
| 15222 | forms of all the _DS relocs bloats all reloc switches in | |
| 15223 | this file. It doesn't make much sense to use these | |
| 15224 | relocs in data, so testing the insn should be safe. */ | |
| 15225 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15226 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15227 | mask = 15; |
| a680de9a PB |
15228 | relocation += addend; |
| 15229 | addend = insn & (mask ^ 3); | |
| 15230 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15231 | { |
| a680de9a | 15232 | relocation ^= relocation & mask; |
| 25f53a85 | 15233 | info->callbacks->einfo |
| 695344c0 | 15234 | /* xgettext:c-format */ |
| 174d0a74 | 15235 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15236 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15237 | howto->name, |
| adadcc0c | 15238 | mask + 1); |
| 65f38f15 | 15239 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15240 | ret = FALSE; |
| c316a17c | 15241 | goto copy_reloc; |
| 65f38f15 AM |
15242 | } |
| 15243 | break; | |
| 5bd4f169 AM |
15244 | } |
| 15245 | ||
| 239e1f3a AM |
15246 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15247 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15248 | not process them. */ | |
| 65f38f15 | 15249 | if (unresolved_reloc |
| 239e1f3a | 15250 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15251 | && h->elf.def_dynamic) |
| 15252 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15253 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15254 | { |
| 25f53a85 | 15255 | info->callbacks->einfo |
| 695344c0 | 15256 | /* xgettext:c-format */ |
| 174d0a74 | 15257 | (_("%H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15258 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15259 | howto->name, |
| 039b3fef | 15260 | h->elf.root.root.string); |
| b34976b6 | 15261 | ret = FALSE; |
| 9c07fe7c | 15262 | } |
| 5bd4f169 | 15263 | |
| b80eed39 AM |
15264 | /* 16-bit fields in insns mostly have signed values, but a |
| 15265 | few insns have 16-bit unsigned values. Really, we should | |
| 15266 | have different reloc types. */ | |
| 15267 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15268 | && howto->dst_mask == 0xffff | |
| 15269 | && (input_section->flags & SEC_CODE) != 0) | |
| 15270 | { | |
| 15271 | enum complain_overflow complain = complain_overflow_signed; | |
| 15272 | ||
| 15273 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15274 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15275 | complain = complain_overflow_bitfield; | |
| 15276 | else if (howto->rightshift == 0 | |
| 15277 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15278 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15279 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15280 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15281 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15282 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15283 | complain = complain_overflow_unsigned; |
| 15284 | if (howto->complain_on_overflow != complain) | |
| 15285 | { | |
| 15286 | alt_howto = *howto; | |
| 15287 | alt_howto.complain_on_overflow = complain; | |
| 15288 | howto = &alt_howto; | |
| 15289 | } | |
| 15290 | } | |
| 15291 | ||
| a680de9a PB |
15292 | if (r_type == R_PPC64_REL16DX_HA) |
| 15293 | { | |
| 15294 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15295 | if (rel->r_offset + 4 > input_section->size) | |
| 15296 | r = bfd_reloc_outofrange; | |
| 15297 | else | |
| 15298 | { | |
| 15299 | relocation += addend; | |
| 15300 | relocation -= (rel->r_offset | |
| 15301 | + input_section->output_offset | |
| 15302 | + input_section->output_section->vma); | |
| 3de43e7b | 15303 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15304 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15305 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15306 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15307 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15308 | r = bfd_reloc_ok; | |
| 3de43e7b | 15309 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15310 | r = bfd_reloc_overflow; |
| 15311 | } | |
| 15312 | } | |
| 15313 | else | |
| 15314 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15315 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15316 | |
| ef60b7ff | 15317 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15318 | { |
| bc30df16 | 15319 | char *more_info = NULL; |
| b80eed39 | 15320 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15321 | |
| 15322 | if (reloc_dest != DEST_NORMAL) | |
| 15323 | { | |
| 15324 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15325 | if (more_info != NULL) | |
| 15326 | { | |
| 15327 | strcpy (more_info, reloc_name); | |
| 15328 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15329 | ? " (OPD)" : " (stub)")); | |
| 15330 | reloc_name = more_info; | |
| 15331 | } | |
| 15332 | } | |
| 15333 | ||
| cd27b276 | 15334 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15335 | { |
| 8131c122 AM |
15336 | /* On code like "if (foo) foo();" don't report overflow |
| 15337 | on a branch to zero when foo is undefined. */ | |
| 15338 | if (!warned | |
| 15339 | && (reloc_dest == DEST_STUB | |
| 15340 | || !(h != NULL | |
| 15341 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15342 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15343 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15344 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15345 | sym_name, reloc_name, | |
| 15346 | orig_rel.r_addend, | |
| 15347 | input_bfd, input_section, | |
| 15348 | rel->r_offset); | |
| ef60b7ff AM |
15349 | } |
| 15350 | else | |
| 15351 | { | |
| 25f53a85 | 15352 | info->callbacks->einfo |
| 695344c0 | 15353 | /* xgettext:c-format */ |
| 174d0a74 | 15354 | (_("%H: %s against `%T': error %d\n"), |
| 25f53a85 | 15355 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15356 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15357 | ret = FALSE; |
| ef60b7ff | 15358 | } |
| bc30df16 AM |
15359 | if (more_info != NULL) |
| 15360 | free (more_info); | |
| 5bd4f169 | 15361 | } |
| c316a17c AM |
15362 | copy_reloc: |
| 15363 | if (wrel != rel) | |
| 15364 | *wrel = *rel; | |
| 15365 | } | |
| 15366 | ||
| 15367 | if (wrel != rel) | |
| 15368 | { | |
| 15369 | Elf_Internal_Shdr *rel_hdr; | |
| 15370 | size_t deleted = rel - wrel; | |
| 15371 | ||
| 15372 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15373 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15374 | if (rel_hdr->sh_size == 0) | |
| 15375 | { | |
| 15376 | /* It is too late to remove an empty reloc section. Leave | |
| 15377 | one NONE reloc. | |
| 15378 | ??? What is wrong with an empty section??? */ | |
| 15379 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15380 | deleted -= 1; | |
| 15381 | } | |
| 15382 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15383 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15384 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15385 | } |
| 15386 | ||
| 645ea6a9 AM |
15387 | /* If we're emitting relocations, then shortly after this function |
| 15388 | returns, reloc offsets and addends for this section will be | |
| 15389 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15390 | file rather than the input. Save a copy of the relocs for |
| 15391 | opd_entry_value. */ | |
| 0e1862bb | 15392 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15393 | { |
| 15394 | bfd_size_type amt; | |
| 15395 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15396 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15397 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15398 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15399 | if (rel == NULL) |
| 15400 | return FALSE; | |
| 15401 | memcpy (rel, relocs, amt); | |
| 15402 | } | |
| 5bd4f169 AM |
15403 | return ret; |
| 15404 | } | |
| 15405 | ||
| 754021d0 AM |
15406 | /* Adjust the value of any local symbols in opd sections. */ |
| 15407 | ||
| 6e0b88f1 | 15408 | static int |
| 754021d0 AM |
15409 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15410 | const char *name ATTRIBUTE_UNUSED, | |
| 15411 | Elf_Internal_Sym *elfsym, | |
| 15412 | asection *input_sec, | |
| 15413 | struct elf_link_hash_entry *h) | |
| 15414 | { | |
| 74f0fb50 AM |
15415 | struct _opd_sec_data *opd; |
| 15416 | long adjust; | |
| 754021d0 AM |
15417 | bfd_vma value; |
| 15418 | ||
| 4025353c | 15419 | if (h != NULL) |
| 6e0b88f1 | 15420 | return 1; |
| 4025353c | 15421 | |
| 74f0fb50 AM |
15422 | opd = get_opd_info (input_sec); |
| 15423 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15424 | return 1; |
| 754021d0 AM |
15425 | |
| 15426 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15427 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15428 | value -= input_sec->output_section->vma; |
| 15429 | ||
| 51aecdc5 | 15430 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15431 | if (adjust == -1) |
| 6e0b88f1 AM |
15432 | return 2; |
| 15433 | ||
| 15434 | elfsym->st_value += adjust; | |
| 15435 | return 1; | |
| 754021d0 AM |
15436 | } |
| 15437 | ||
| 5bd4f169 AM |
15438 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15439 | dynamic sections here. */ | |
| 15440 | ||
| b34976b6 | 15441 | static bfd_boolean |
| 4ce794b7 AM |
15442 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15443 | struct bfd_link_info *info, | |
| 15444 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 15445 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 15446 | { |
| 65f38f15 | 15447 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15448 | struct plt_entry *ent; |
| 15449 | Elf_Internal_Rela rela; | |
| 15450 | bfd_byte *loc; | |
| 5bd4f169 | 15451 | |
| 65f38f15 | 15452 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15453 | if (htab == NULL) |
| 15454 | return FALSE; | |
| 5bd4f169 | 15455 | |
| 8387904d AM |
15456 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15457 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15458 | { | |
| 15459 | /* This symbol has an entry in the procedure linkage | |
| 15460 | table. Set it up. */ | |
| e054468f AM |
15461 | if (!htab->elf.dynamic_sections_created |
| 15462 | || h->dynindx == -1) | |
| 15463 | { | |
| 15464 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15465 | && h->def_regular | |
| 15466 | && (h->root.type == bfd_link_hash_defined | |
| 15467 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15468 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15469 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15470 | + ent->plt.offset); |
| ee67d69a AM |
15471 | if (htab->opd_abi) |
| 15472 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15473 | else | |
| 15474 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15475 | rela.r_addend = (h->root.u.def.value |
| 15476 | + h->root.u.def.section->output_offset | |
| 15477 | + h->root.u.def.section->output_section->vma | |
| 15478 | + ent->addend); | |
| 33e44f2e AM |
15479 | loc = (htab->elf.irelplt->contents |
| 15480 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15481 | * sizeof (Elf64_External_Rela))); |
| 82e66161 | 15482 | htab->local_ifunc_resolver = 1; |
| e054468f AM |
15483 | } |
| 15484 | else | |
| 15485 | { | |
| 33e44f2e AM |
15486 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15487 | + htab->elf.splt->output_offset | |
| 25f23106 | 15488 | + ent->plt.offset); |
| e054468f AM |
15489 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15490 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15491 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15492 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15493 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 82e66161 AM |
15494 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) |
| 15495 | htab->maybe_local_ifunc_resolver = 1; | |
| e054468f | 15496 | } |
| 8387904d | 15497 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15498 | |
| 15499 | if (!htab->opd_abi) | |
| 15500 | { | |
| 15501 | if (!h->def_regular) | |
| 15502 | { | |
| 15503 | /* Mark the symbol as undefined, rather than as | |
| 15504 | defined in glink. Leave the value if there were | |
| 15505 | any relocations where pointer equality matters | |
| 15506 | (this is a clue for the dynamic linker, to make | |
| 15507 | function pointer comparisons work between an | |
| 15508 | application and shared library), otherwise set it | |
| 15509 | to zero. */ | |
| 15510 | sym->st_shndx = SHN_UNDEF; | |
| 15511 | if (!h->pointer_equality_needed) | |
| 15512 | sym->st_value = 0; | |
| 15513 | else if (!h->ref_regular_nonweak) | |
| 15514 | { | |
| 15515 | /* This breaks function pointer comparisons, but | |
| 15516 | that is better than breaking tests for a NULL | |
| 15517 | function pointer. */ | |
| 15518 | sym->st_value = 0; | |
| 15519 | } | |
| 15520 | } | |
| 15521 | } | |
| 8387904d | 15522 | } |
| 5bd4f169 | 15523 | |
| f5385ebf | 15524 | if (h->needs_copy) |
| 5bd4f169 | 15525 | { |
| 65f38f15 | 15526 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15527 | asection *srel; |
| 5bd4f169 | 15528 | |
| 65f38f15 AM |
15529 | if (h->dynindx == -1 |
| 15530 | || (h->root.type != bfd_link_hash_defined | |
| 15531 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15532 | || htab->elf.srelbss == NULL |
| 15533 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15534 | abort (); |
| 5bd4f169 AM |
15535 | |
| 15536 | rela.r_offset = (h->root.u.def.value | |
| 15537 | + h->root.u.def.section->output_section->vma | |
| 15538 | + h->root.u.def.section->output_offset); | |
| 15539 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15540 | rela.r_addend = 0; | |
| afbf7e8e | 15541 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
15542 | srel = htab->elf.sreldynrelro; |
| 15543 | else | |
| 15544 | srel = htab->elf.srelbss; | |
| 15545 | loc = srel->contents; | |
| 15546 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15547 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15548 | } |
| 15549 | ||
| b34976b6 | 15550 | return TRUE; |
| 5bd4f169 AM |
15551 | } |
| 15552 | ||
| 65f38f15 AM |
15553 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15554 | dynamic linker, before writing them out. */ | |
| 15555 | ||
| 15556 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15557 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15558 | const asection *rel_sec, | |
| 15559 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15560 | { |
| 04c9666a | 15561 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15562 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15563 | ||
| 33e44f2e | 15564 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15565 | return reloc_class_ifunc; |
| a33d1f77 | 15566 | |
| 4ce794b7 | 15567 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15568 | switch (r_type) |
| 65f38f15 AM |
15569 | { |
| 15570 | case R_PPC64_RELATIVE: | |
| 15571 | return reloc_class_relative; | |
| 15572 | case R_PPC64_JMP_SLOT: | |
| 15573 | return reloc_class_plt; | |
| 15574 | case R_PPC64_COPY: | |
| 15575 | return reloc_class_copy; | |
| 15576 | default: | |
| 15577 | return reloc_class_normal; | |
| 15578 | } | |
| 15579 | } | |
| 15580 | ||
| 5bd4f169 AM |
15581 | /* Finish up the dynamic sections. */ |
| 15582 | ||
| b34976b6 | 15583 | static bfd_boolean |
| 4ce794b7 AM |
15584 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15585 | struct bfd_link_info *info) | |
| 5bd4f169 | 15586 | { |
| 65f38f15 AM |
15587 | struct ppc_link_hash_table *htab; |
| 15588 | bfd *dynobj; | |
| 5bd4f169 | 15589 | asection *sdyn; |
| 5bd4f169 | 15590 | |
| 65f38f15 | 15591 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15592 | if (htab == NULL) |
| 15593 | return FALSE; | |
| 15594 | ||
| 65f38f15 | 15595 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15596 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15597 | |
| 65f38f15 | 15598 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15599 | { |
| 5bd4f169 AM |
15600 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15601 | ||
| 33e44f2e | 15602 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15603 | abort (); |
| 5bd4f169 AM |
15604 | |
| 15605 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15606 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15607 | for (; dyncon < dynconend; dyncon++) |
| 15608 | { | |
| 15609 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15610 | asection *s; |
| 5bd4f169 AM |
15611 | |
| 15612 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15613 | ||
| 15614 | switch (dyn.d_tag) | |
| 15615 | { | |
| 65f38f15 AM |
15616 | default: |
| 15617 | continue; | |
| 5bd4f169 | 15618 | |
| 5d1634d7 | 15619 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15620 | s = htab->glink; |
| 6348e046 | 15621 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15622 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15623 | of glink rather than the first entry point, which is | |
| 15624 | what ld.so needs, and now have a bigger stub to | |
| 15625 | support automatic multiple TOCs. */ | |
| 9e390558 | 15626 | dyn.d_un.d_ptr += GLINK_PLTRESOLVE_SIZE (htab) - 8 * 4; |
| 5d1634d7 AM |
15627 | break; |
| 15628 | ||
| 19397422 AM |
15629 | case DT_PPC64_OPD: |
| 15630 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15631 | if (s == NULL) |
| 15632 | continue; | |
| 15633 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15634 | break; |
| 15635 | ||
| e8910a83 AM |
15636 | case DT_PPC64_OPT: |
| 15637 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15638 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
15639 | if (htab->has_plt_localentry0) |
| 15640 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
15641 | break; |
| 15642 | ||
| 19397422 AM |
15643 | case DT_PPC64_OPDSZ: |
| 15644 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15645 | if (s == NULL) |
| 15646 | continue; | |
| eea6121a | 15647 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15648 | break; |
| 15649 | ||
| 65f38f15 | 15650 | case DT_PLTGOT: |
| 33e44f2e | 15651 | s = htab->elf.splt; |
| 6348e046 | 15652 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15653 | break; |
| 15654 | ||
| 15655 | case DT_JMPREL: | |
| 33e44f2e | 15656 | s = htab->elf.srelplt; |
| 6348e046 | 15657 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15658 | break; |
| 5bd4f169 | 15659 | |
| 65f38f15 | 15660 | case DT_PLTRELSZ: |
| 33e44f2e | 15661 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15662 | break; |
| 82e66161 AM |
15663 | |
| 15664 | case DT_TEXTREL: | |
| 15665 | if (htab->local_ifunc_resolver) | |
| 15666 | info->callbacks->einfo | |
| 15667 | (_("%X%P: text relocations and GNU indirect " | |
| 15668 | "functions will result in a segfault at runtime\n")); | |
| 15669 | else if (htab->maybe_local_ifunc_resolver) | |
| 15670 | info->callbacks->einfo | |
| 15671 | (_("%P: warning: text relocations and GNU indirect " | |
| 15672 | "functions may result in a segfault at runtime\n")); | |
| 15673 | continue; | |
| 5bd4f169 | 15674 | } |
| 5bd4f169 | 15675 | |
| 65f38f15 | 15676 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15677 | } |
| 5bd4f169 AM |
15678 | } |
| 15679 | ||
| 6528b6eb AM |
15680 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 15681 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15682 | { |
| 15683 | /* Fill in the first entry in the global offset table. | |
| 15684 | We use it to hold the link-time TOCbase. */ | |
| 15685 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15686 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15687 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15688 | |
| 15689 | /* Set .got entry size. */ | |
| 33e44f2e | 15690 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15691 | } |
| 15692 | ||
| 6528b6eb AM |
15693 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 15694 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15695 | { |
| 15696 | /* Set .plt entry size. */ | |
| 33e44f2e | 15697 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15698 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15699 | } |
| 15700 | ||
| 84f5d08e AM |
15701 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15702 | brlt ourselves if emitrelocations. */ | |
| 15703 | if (htab->brlt != NULL | |
| 15704 | && htab->brlt->reloc_count != 0 | |
| 15705 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15706 | htab->brlt, | |
| d4730f92 | 15707 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15708 | elf_section_data (htab->brlt)->relocs, |
| 15709 | NULL)) | |
| 15710 | return FALSE; | |
| 15711 | ||
| 176a0d42 AM |
15712 | if (htab->glink != NULL |
| 15713 | && htab->glink->reloc_count != 0 | |
| 15714 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15715 | htab->glink, | |
| d4730f92 | 15716 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15717 | elf_section_data (htab->glink)->relocs, |
| 15718 | NULL)) | |
| 15719 | return FALSE; | |
| 15720 | ||
| 58d180e8 | 15721 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15722 | && htab->glink_eh_frame->size != 0) |
| 15723 | { | |
| 15724 | bfd_vma val; | |
| 15725 | bfd_byte *p; | |
| d4aaa2a0 | 15726 | struct map_stub *group; |
| 2e0ce1c8 | 15727 | size_t align = 4; |
| da44f4e5 | 15728 | |
| 2e0ce1c8 AM |
15729 | p = htab->glink_eh_frame->contents; |
| 15730 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
15731 | |
| 15732 | for (group = htab->group; group != NULL; group = group->next) | |
| 15733 | if (group->stub_sec != NULL) | |
| da44f4e5 | 15734 | { |
| da44f4e5 | 15735 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
15736 | val = (group->stub_sec->output_section->vma |
| 15737 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
15738 | val -= (htab->glink_eh_frame->output_section->vma |
| 15739 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15740 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15741 | if (val + 0x80000000 > 0xffffffff) |
| 15742 | { | |
| 15743 | info->callbacks->einfo | |
| 15744 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 15745 | group->stub_sec->name); |
| da44f4e5 AM |
15746 | return FALSE; |
| 15747 | } | |
| d4aaa2a0 AM |
15748 | bfd_put_32 (dynobj, val, p + 8); |
| 15749 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
15750 | } |
| 15751 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15752 | { | |
| da44f4e5 AM |
15753 | /* Offset to .glink. */ |
| 15754 | val = (htab->glink->output_section->vma | |
| 15755 | + htab->glink->output_offset | |
| 15756 | + 8); | |
| 15757 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15758 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15759 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15760 | if (val + 0x80000000 > 0xffffffff) |
| 15761 | { | |
| 15762 | info->callbacks->einfo | |
| 15763 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15764 | htab->glink->name); | |
| 15765 | return FALSE; | |
| 15766 | } | |
| d4aaa2a0 AM |
15767 | bfd_put_32 (dynobj, val, p + 8); |
| 15768 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
15769 | } |
| 15770 | ||
| 15771 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15772 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15773 | htab->glink_eh_frame, | |
| 15774 | htab->glink_eh_frame->contents)) | |
| 15775 | return FALSE; | |
| 15776 | } | |
| 58d180e8 | 15777 | |
| e717da7e | 15778 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15779 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15780 | bfd. */ | |
| c72f2fb2 | 15781 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15782 | { |
| 15783 | asection *s; | |
| 7b53ace3 | 15784 | |
| 0c8d6e5c | 15785 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15786 | continue; |
| 15787 | ||
| e717da7e AM |
15788 | s = ppc64_elf_tdata (dynobj)->got; |
| 15789 | if (s != NULL | |
| eea6121a | 15790 | && s->size != 0 |
| e717da7e AM |
15791 | && s->output_section != bfd_abs_section_ptr |
| 15792 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15793 | s->contents, s->output_offset, | |
| eea6121a | 15794 | s->size)) |
| e717da7e AM |
15795 | return FALSE; |
| 15796 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15797 | if (s != NULL | |
| eea6121a | 15798 | && s->size != 0 |
| e717da7e AM |
15799 | && s->output_section != bfd_abs_section_ptr |
| 15800 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15801 | s->contents, s->output_offset, | |
| eea6121a | 15802 | s->size)) |
| e717da7e AM |
15803 | return FALSE; |
| 15804 | } | |
| f6c52c13 | 15805 | |
| b34976b6 | 15806 | return TRUE; |
| 5bd4f169 AM |
15807 | } |
| 15808 | ||
| 5bd4f169 | 15809 | #include "elf64-target.h" |
| 7b8e7dad AM |
15810 | |
| 15811 | /* FreeBSD support */ | |
| 15812 | ||
| 15813 | #undef TARGET_LITTLE_SYM | |
| 15814 | #undef TARGET_LITTLE_NAME | |
| 15815 | ||
| 15816 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15817 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15818 | #undef TARGET_BIG_NAME |
| 15819 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15820 | ||
| 15821 | #undef ELF_OSABI | |
| 15822 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15823 | ||
| 15824 | #undef elf64_bed | |
| 15825 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15826 | ||
| 15827 | #include "elf64-target.h" |