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 | ||
| 07d6d2b8 AM |
164 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| 165 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ | |
| 166 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 167 | ||
| 168 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ | |
| 169 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 170 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 171 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ | |
| 172 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 173 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 174 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 794e51c0 | 175 | |
| 71a39c98 | 176 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 | 177 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 07d6d2b8 | 178 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ |
| ac2df442 | 179 | |
| 07d6d2b8 AM |
180 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 181 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ | |
| 182 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 183 | |
| 07d6d2b8 | 184 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 006589cf AM |
185 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ |
| 186 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d | 187 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 07d6d2b8 | 188 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ |
| a345bc8d | 189 | |
| 9e390558 AM |
190 | /* __glink_PLTresolve stub instructions. We enter with the index in R0. */ |
| 191 | #define GLINK_PLTRESOLVE_SIZE(htab) \ | |
| 407aa07c | 192 | (8u + (htab->opd_abi ? 11 * 4 : 14 * 4)) |
| ee4bf8d2 AM |
193 | /* 0: */ |
| 194 | /* .quad plt0-1f */ | |
| 195 | /* __glink: */ | |
| 196 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 197 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 198 | /* 1: */ | |
| 199 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 200 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 201 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
202 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 203 | /* ld %12,0(%11) */ | |
| 204 | /* ld %2,8(%11) */ | |
| 205 | /* mtctr %12 */ | |
| 206 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 207 | /* bctr */ |
| b9e5796b AM |
208 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 209 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 210 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 211 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 212 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
213 | |
| 214 | /* Pad with this. */ | |
| 215 | #define NOP 0x60000000 | |
| 216 | ||
| 721956f4 AM |
217 | /* Some other nops. */ |
| 218 | #define CROR_151515 0x4def7b82 | |
| 219 | #define CROR_313131 0x4ffffb82 | |
| 220 | ||
| cedb70c5 | 221 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
222 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 223 | #define B_DOT 0x48000000 /* b . */ | |
| 224 | ||
| 225 | /* After that, we need two instructions to load the index, followed by | |
| 226 | a branch. */ | |
| 227 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 228 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 229 | |
| deb0e272 AM |
230 | /* Instructions used by the save and restore reg functions. */ |
| 231 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 232 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 233 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 234 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
235 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 236 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
237 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 238 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 239 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 240 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
241 | #define BLR 0x4e800020 /* blr */ |
| 242 | ||
| 41bd81ab AM |
243 | /* Since .opd is an array of descriptors and each entry will end up |
| 244 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 245 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 246 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
247 | #ifndef NO_OPD_RELOCS |
| 248 | #define NO_OPD_RELOCS 0 | |
| 249 | #endif | |
| 810d4e75 | 250 | |
| a4b6fadd AM |
251 | #ifndef ARRAY_SIZE |
| 252 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 253 | #endif | |
| 254 | ||
| 810d4e75 AM |
255 | static inline int |
| 256 | abiversion (bfd *abfd) | |
| 257 | { | |
| 258 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 259 | } | |
| 260 | ||
| 261 | static inline void | |
| 262 | set_abiversion (bfd *abfd, int ver) | |
| 263 | { | |
| 264 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 265 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 266 | } | |
| 5bd4f169 | 267 | \f |
| f5e87a1d | 268 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 269 | |
| 5bd4f169 | 270 | /* Relocation HOWTO's. */ |
| 04c9666a | 271 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 | 272 | |
| f3185997 NC |
273 | static reloc_howto_type ppc64_elf_howto_raw[] = |
| 274 | { | |
| 5bd4f169 AM |
275 | /* This reloc does nothing. */ |
| 276 | HOWTO (R_PPC64_NONE, /* type */ | |
| 277 | 0, /* rightshift */ | |
| 6346d5ca AM |
278 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 279 | 0, /* bitsize */ | |
| b34976b6 | 280 | FALSE, /* pc_relative */ |
| 5bd4f169 | 281 | 0, /* bitpos */ |
| f5e87a1d | 282 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
283 | bfd_elf_generic_reloc, /* special_function */ |
| 284 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 285 | FALSE, /* partial_inplace */ |
| d006db6c | 286 | 0, /* src_mask */ |
| 5bd4f169 | 287 | 0, /* dst_mask */ |
| b34976b6 | 288 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
289 | |
| 290 | /* A standard 32 bit relocation. */ | |
| 291 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 292 | 0, /* rightshift */ | |
| 293 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 294 | 32, /* bitsize */ | |
| b34976b6 | 295 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
296 | 0, /* bitpos */ |
| 297 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 298 | bfd_elf_generic_reloc, /* special_function */ | |
| 299 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 300 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
301 | 0, /* src_mask */ |
| 302 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 303 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
304 | |
| 305 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 306 | FIXME: we don't check that, we just clear them. */ | |
| 307 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 308 | 0, /* rightshift */ | |
| 309 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 310 | 26, /* bitsize */ | |
| b34976b6 | 311 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
312 | 0, /* bitpos */ |
| 313 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 314 | bfd_elf_generic_reloc, /* special_function */ | |
| 315 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 316 | FALSE, /* partial_inplace */ |
| d006db6c | 317 | 0, /* src_mask */ |
| f5e87a1d | 318 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 319 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
320 | |
| 321 | /* A standard 16 bit relocation. */ | |
| 322 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 323 | 0, /* rightshift */ | |
| 324 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 325 | 16, /* bitsize */ | |
| b34976b6 | 326 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
327 | 0, /* bitpos */ |
| 328 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 329 | bfd_elf_generic_reloc, /* special_function */ | |
| 330 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 331 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
332 | 0, /* src_mask */ |
| 333 | 0xffff, /* dst_mask */ | |
| b34976b6 | 334 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
335 | |
| 336 | /* A 16 bit relocation without overflow. */ | |
| 337 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 338 | 0, /* rightshift */ | |
| 339 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 340 | 16, /* bitsize */ | |
| b34976b6 | 341 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
342 | 0, /* bitpos */ |
| 343 | complain_overflow_dont,/* complain_on_overflow */ | |
| 344 | bfd_elf_generic_reloc, /* special_function */ | |
| 345 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 346 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
347 | 0, /* src_mask */ |
| 348 | 0xffff, /* dst_mask */ | |
| b34976b6 | 349 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
350 | |
| 351 | /* Bits 16-31 of an address. */ | |
| 352 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 353 | 16, /* rightshift */ | |
| 354 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 355 | 16, /* bitsize */ | |
| b34976b6 | 356 | FALSE, /* pc_relative */ |
| 5bd4f169 | 357 | 0, /* bitpos */ |
| f9c6b907 | 358 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
359 | bfd_elf_generic_reloc, /* special_function */ |
| 360 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 361 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
362 | 0, /* src_mask */ |
| 363 | 0xffff, /* dst_mask */ | |
| b34976b6 | 364 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
365 | |
| 366 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 367 | bits, treated as a signed number, is negative. */ | |
| 368 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 369 | 16, /* rightshift */ | |
| 370 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 371 | 16, /* bitsize */ | |
| b34976b6 | 372 | FALSE, /* pc_relative */ |
| 5bd4f169 | 373 | 0, /* bitpos */ |
| f9c6b907 | 374 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 375 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 376 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 377 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
378 | 0, /* src_mask */ |
| 379 | 0xffff, /* dst_mask */ | |
| b34976b6 | 380 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
381 | |
| 382 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 383 | FIXME: we don't check that, we just clear them. */ | |
| 384 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 385 | 0, /* rightshift */ | |
| 386 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 387 | 16, /* bitsize */ | |
| b34976b6 | 388 | FALSE, /* pc_relative */ |
| 5bd4f169 | 389 | 0, /* bitpos */ |
| b80eed39 | 390 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 391 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 392 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 393 | FALSE, /* partial_inplace */ |
| d006db6c | 394 | 0, /* src_mask */ |
| f5e87a1d | 395 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 396 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
397 | |
| 398 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 399 | indicate that the branch is expected to be taken. The lower two | |
| 400 | bits must be zero. */ | |
| 401 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 402 | 0, /* rightshift */ | |
| 403 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 404 | 16, /* bitsize */ | |
| b34976b6 | 405 | FALSE, /* pc_relative */ |
| 5bd4f169 | 406 | 0, /* bitpos */ |
| b80eed39 | 407 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 408 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 409 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 410 | FALSE, /* partial_inplace */ |
| d006db6c | 411 | 0, /* src_mask */ |
| f5e87a1d | 412 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 413 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
414 | |
| 415 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 416 | indicate that the branch is not expected to be taken. The lower | |
| 417 | two bits must be zero. */ | |
| 418 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 419 | 0, /* rightshift */ | |
| 420 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 421 | 16, /* bitsize */ | |
| b34976b6 | 422 | FALSE, /* pc_relative */ |
| 5bd4f169 | 423 | 0, /* bitpos */ |
| b80eed39 | 424 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 425 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 426 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 427 | FALSE, /* partial_inplace */ |
| d006db6c | 428 | 0, /* src_mask */ |
| f5e87a1d | 429 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 430 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
431 | |
| 432 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 433 | HOWTO (R_PPC64_REL24, /* type */ | |
| 434 | 0, /* rightshift */ | |
| 435 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 436 | 26, /* bitsize */ | |
| b34976b6 | 437 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
438 | 0, /* bitpos */ |
| 439 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 440 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 441 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 442 | FALSE, /* partial_inplace */ |
| d006db6c | 443 | 0, /* src_mask */ |
| f5e87a1d | 444 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 445 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
446 | |
| 447 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 448 | HOWTO (R_PPC64_REL14, /* type */ | |
| 449 | 0, /* rightshift */ | |
| 450 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 451 | 16, /* bitsize */ | |
| b34976b6 | 452 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
453 | 0, /* bitpos */ |
| 454 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 455 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 456 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 457 | FALSE, /* partial_inplace */ |
| d006db6c | 458 | 0, /* src_mask */ |
| f5e87a1d | 459 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 460 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
461 | |
| 462 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 463 | the branch is expected to be taken. The lower two bits must be | |
| 464 | zero. */ | |
| 465 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 466 | 0, /* rightshift */ | |
| 467 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 468 | 16, /* bitsize */ | |
| b34976b6 | 469 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
470 | 0, /* bitpos */ |
| 471 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 472 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 473 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 474 | FALSE, /* partial_inplace */ |
| d006db6c | 475 | 0, /* src_mask */ |
| f5e87a1d | 476 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 477 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
478 | |
| 479 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 480 | the branch is not expected to be taken. The lower two bits must | |
| 481 | be zero. */ | |
| 482 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 483 | 0, /* rightshift */ | |
| 484 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 485 | 16, /* bitsize */ | |
| b34976b6 | 486 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
487 | 0, /* bitpos */ |
| 488 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 489 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 490 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 491 | FALSE, /* partial_inplace */ |
| d006db6c | 492 | 0, /* src_mask */ |
| f5e87a1d | 493 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 494 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
495 | |
| 496 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 497 | symbol. */ | |
| 498 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 499 | 0, /* rightshift */ | |
| 500 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 501 | 16, /* bitsize */ | |
| b34976b6 | 502 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
503 | 0, /* bitpos */ |
| 504 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 505 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 506 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 507 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
508 | 0, /* src_mask */ |
| 509 | 0xffff, /* dst_mask */ | |
| b34976b6 | 510 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
511 | |
| 512 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 513 | the symbol. */ | |
| 514 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 515 | 0, /* rightshift */ | |
| 516 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 517 | 16, /* bitsize */ | |
| b34976b6 | 518 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
519 | 0, /* bitpos */ |
| 520 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 521 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 522 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 523 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
524 | 0, /* src_mask */ |
| 525 | 0xffff, /* dst_mask */ | |
| b34976b6 | 526 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
527 | |
| 528 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 529 | the symbol. */ | |
| 530 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 531 | 16, /* rightshift */ | |
| 532 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 533 | 16, /* bitsize */ | |
| b34976b6 | 534 | FALSE, /* pc_relative */ |
| 5bd4f169 | 535 | 0, /* bitpos */ |
| f9c6b907 | 536 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 537 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 538 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 539 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
540 | 0, /* src_mask */ |
| 541 | 0xffff, /* dst_mask */ | |
| b34976b6 | 542 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
543 | |
| 544 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 545 | the symbol. */ | |
| 546 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 547 | 16, /* rightshift */ | |
| 548 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 549 | 16, /* bitsize */ | |
| b34976b6 | 550 | FALSE, /* pc_relative */ |
| 5bd4f169 | 551 | 0, /* bitpos */ |
| f9c6b907 | 552 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 553 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 554 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 555 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
556 | 0, /* src_mask */ |
| 557 | 0xffff, /* dst_mask */ | |
| b34976b6 | 558 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
559 | |
| 560 | /* This is used only by the dynamic linker. The symbol should exist | |
| 561 | both in the object being run and in some shared library. The | |
| 562 | dynamic linker copies the data addressed by the symbol from the | |
| 563 | shared library into the object, because the object being | |
| 564 | run has to have the data at some particular address. */ | |
| 565 | HOWTO (R_PPC64_COPY, /* type */ | |
| 566 | 0, /* rightshift */ | |
| f5e87a1d AM |
567 | 0, /* this one is variable size */ |
| 568 | 0, /* bitsize */ | |
| b34976b6 | 569 | FALSE, /* pc_relative */ |
| 5bd4f169 | 570 | 0, /* bitpos */ |
| f5e87a1d AM |
571 | complain_overflow_dont, /* complain_on_overflow */ |
| 572 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 573 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 574 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
575 | 0, /* src_mask */ |
| 576 | 0, /* dst_mask */ | |
| b34976b6 | 577 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
578 | |
| 579 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 580 | entries. */ | |
| 581 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 582 | 0, /* rightshift */ | |
| 583 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 584 | 64, /* bitsize */ | |
| b34976b6 | 585 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
586 | 0, /* bitpos */ |
| 587 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 588 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 589 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 590 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 591 | 0, /* src_mask */ |
| f5e87a1d | 592 | ONES (64), /* dst_mask */ |
| b34976b6 | 593 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
594 | |
| 595 | /* Created by the link editor. Marks a procedure linkage table | |
| 596 | entry for a symbol. */ | |
| 597 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 598 | 0, /* rightshift */ | |
| 599 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 600 | 0, /* bitsize */ | |
| b34976b6 | 601 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
602 | 0, /* bitpos */ |
| 603 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 604 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 605 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 606 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
607 | 0, /* src_mask */ |
| 608 | 0, /* dst_mask */ | |
| b34976b6 | 609 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
610 | |
| 611 | /* Used only by the dynamic linker. When the object is run, this | |
| 612 | doubleword64 is set to the load address of the object, plus the | |
| 613 | addend. */ | |
| 614 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 615 | 0, /* rightshift */ | |
| 616 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 617 | 64, /* bitsize */ | |
| b34976b6 | 618 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
619 | 0, /* bitpos */ |
| 620 | complain_overflow_dont, /* complain_on_overflow */ | |
| 621 | bfd_elf_generic_reloc, /* special_function */ | |
| 622 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 623 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 624 | 0, /* src_mask */ |
| f5e87a1d | 625 | ONES (64), /* dst_mask */ |
| b34976b6 | 626 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
627 | |
| 628 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 629 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 630 | 0, /* rightshift */ | |
| 631 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 632 | 32, /* bitsize */ | |
| b34976b6 | 633 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
634 | 0, /* bitpos */ |
| 635 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 636 | bfd_elf_generic_reloc, /* special_function */ | |
| 637 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 638 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
639 | 0, /* src_mask */ |
| 640 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 641 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
642 | |
| 643 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 644 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 645 | 0, /* rightshift */ | |
| 646 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 647 | 16, /* bitsize */ | |
| b34976b6 | 648 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
649 | 0, /* bitpos */ |
| 650 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 651 | bfd_elf_generic_reloc, /* special_function */ | |
| 652 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 653 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
654 | 0, /* src_mask */ |
| 655 | 0xffff, /* dst_mask */ | |
| b34976b6 | 656 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
657 | |
| 658 | /* 32-bit PC relative. */ | |
| 659 | HOWTO (R_PPC64_REL32, /* type */ | |
| 660 | 0, /* rightshift */ | |
| 661 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 662 | 32, /* bitsize */ | |
| b34976b6 | 663 | TRUE, /* pc_relative */ |
| 5bd4f169 | 664 | 0, /* bitpos */ |
| 5bd4f169 AM |
665 | complain_overflow_signed, /* complain_on_overflow */ |
| 666 | bfd_elf_generic_reloc, /* special_function */ | |
| 667 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 668 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
669 | 0, /* src_mask */ |
| 670 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 671 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 672 | |
| 10ed1bba | 673 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
674 | HOWTO (R_PPC64_PLT32, /* type */ |
| 675 | 0, /* rightshift */ | |
| 676 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 677 | 32, /* bitsize */ | |
| b34976b6 | 678 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
679 | 0, /* bitpos */ |
| 680 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 681 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 682 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 683 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 684 | 0, /* src_mask */ |
| f5e87a1d | 685 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 686 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
687 | |
| 688 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 689 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 690 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 691 | 0, /* rightshift */ | |
| 692 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 693 | 32, /* bitsize */ | |
| b34976b6 | 694 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
695 | 0, /* bitpos */ |
| 696 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 697 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 698 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 699 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 700 | 0, /* src_mask */ |
| f5e87a1d | 701 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 702 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
703 | |
| 704 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 705 | the symbol. */ | |
| 706 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 707 | 0, /* rightshift */ | |
| 708 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 709 | 16, /* bitsize */ | |
| b34976b6 | 710 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
711 | 0, /* bitpos */ |
| 712 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 713 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 714 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 715 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
716 | 0, /* src_mask */ |
| 717 | 0xffff, /* dst_mask */ | |
| b34976b6 | 718 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
719 | |
| 720 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 721 | the symbol. */ | |
| 722 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 723 | 16, /* rightshift */ | |
| 724 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 725 | 16, /* bitsize */ | |
| b34976b6 | 726 | FALSE, /* pc_relative */ |
| 5bd4f169 | 727 | 0, /* bitpos */ |
| f9c6b907 | 728 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 729 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 730 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 731 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
732 | 0, /* src_mask */ |
| 733 | 0xffff, /* dst_mask */ | |
| b34976b6 | 734 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
735 | |
| 736 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 737 | the symbol. */ | |
| 738 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 739 | 16, /* rightshift */ | |
| 740 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 741 | 16, /* bitsize */ | |
| b34976b6 | 742 | FALSE, /* pc_relative */ |
| 5bd4f169 | 743 | 0, /* bitpos */ |
| f9c6b907 | 744 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 745 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 746 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 747 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
748 | 0, /* src_mask */ |
| 749 | 0xffff, /* dst_mask */ | |
| b34976b6 | 750 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 751 | |
| c061c2d8 | 752 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
753 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 754 | 0, /* rightshift */ | |
| c061c2d8 AM |
755 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 756 | 16, /* bitsize */ | |
| b34976b6 | 757 | FALSE, /* pc_relative */ |
| 5bd4f169 | 758 | 0, /* bitpos */ |
| b80eed39 | 759 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 760 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 761 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 762 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 763 | 0, /* src_mask */ |
| c061c2d8 | 764 | 0xffff, /* dst_mask */ |
| b34976b6 | 765 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 766 | |
| c061c2d8 | 767 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
768 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 769 | 0, /* rightshift */ | |
| 770 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 771 | 16, /* bitsize */ | |
| b34976b6 | 772 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
773 | 0, /* bitpos */ |
| 774 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 775 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 776 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 777 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
778 | 0, /* src_mask */ |
| 779 | 0xffff, /* dst_mask */ | |
| b34976b6 | 780 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
781 | |
| 782 | /* 16-bit upper half section relative relocation. */ | |
| 783 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 784 | 16, /* rightshift */ | |
| 785 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 786 | 16, /* bitsize */ | |
| b34976b6 | 787 | FALSE, /* pc_relative */ |
| 5bd4f169 | 788 | 0, /* bitpos */ |
| f9c6b907 | 789 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 790 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 791 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 792 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
793 | 0, /* src_mask */ |
| 794 | 0xffff, /* dst_mask */ | |
| b34976b6 | 795 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
796 | |
| 797 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 798 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 799 | 16, /* rightshift */ | |
| 800 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 801 | 16, /* bitsize */ | |
| b34976b6 | 802 | FALSE, /* pc_relative */ |
| 5bd4f169 | 803 | 0, /* bitpos */ |
| f9c6b907 | 804 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 805 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 806 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 807 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
808 | 0, /* src_mask */ |
| 809 | 0xffff, /* dst_mask */ | |
| b34976b6 | 810 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 811 | |
| 04c9666a AM |
812 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 813 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
814 | 2, /* rightshift */ |
| 815 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 816 | 30, /* bitsize */ | |
| b34976b6 | 817 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
818 | 0, /* bitpos */ |
| 819 | complain_overflow_dont, /* complain_on_overflow */ | |
| 820 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 821 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 822 | FALSE, /* partial_inplace */ |
| d006db6c | 823 | 0, /* src_mask */ |
| 5bd4f169 | 824 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 825 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
826 | |
| 827 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 828 | ||
| 829 | /* A standard 64-bit relocation. */ | |
| 830 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 831 | 0, /* rightshift */ | |
| 832 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 833 | 64, /* bitsize */ | |
| b34976b6 | 834 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
835 | 0, /* bitpos */ |
| 836 | complain_overflow_dont, /* complain_on_overflow */ | |
| 837 | bfd_elf_generic_reloc, /* special_function */ | |
| 838 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 839 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 840 | 0, /* src_mask */ |
| f5e87a1d | 841 | ONES (64), /* dst_mask */ |
| b34976b6 | 842 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
843 | |
| 844 | /* The bits 32-47 of an address. */ | |
| 845 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 846 | 32, /* rightshift */ | |
| 847 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 848 | 16, /* bitsize */ | |
| b34976b6 | 849 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
850 | 0, /* bitpos */ |
| 851 | complain_overflow_dont, /* complain_on_overflow */ | |
| 852 | bfd_elf_generic_reloc, /* special_function */ | |
| 853 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 854 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
855 | 0, /* src_mask */ |
| 856 | 0xffff, /* dst_mask */ | |
| b34976b6 | 857 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
858 | |
| 859 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 860 | 16 bits, treated as a signed number, is negative. */ | |
| 861 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 862 | 32, /* rightshift */ | |
| 863 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 864 | 16, /* bitsize */ | |
| b34976b6 | 865 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
866 | 0, /* bitpos */ |
| 867 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 868 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 869 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 870 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
871 | 0, /* src_mask */ |
| 872 | 0xffff, /* dst_mask */ | |
| b34976b6 | 873 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
874 | |
| 875 | /* The bits 48-63 of an address. */ | |
| 876 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 877 | 48, /* rightshift */ | |
| 878 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 879 | 16, /* bitsize */ | |
| b34976b6 | 880 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
881 | 0, /* bitpos */ |
| 882 | complain_overflow_dont, /* complain_on_overflow */ | |
| 883 | bfd_elf_generic_reloc, /* special_function */ | |
| 884 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 885 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
886 | 0, /* src_mask */ |
| 887 | 0xffff, /* dst_mask */ | |
| b34976b6 | 888 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
889 | |
| 890 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 891 | 16 bits, treated as a signed number, is negative. */ | |
| 892 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 893 | 48, /* rightshift */ | |
| 894 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 895 | 16, /* bitsize */ | |
| b34976b6 | 896 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
897 | 0, /* bitpos */ |
| 898 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 899 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 900 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 901 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
902 | 0, /* src_mask */ |
| 903 | 0xffff, /* dst_mask */ | |
| b34976b6 | 904 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
905 | |
| 906 | /* Like ADDR64, but may be unaligned. */ | |
| 907 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 908 | 0, /* rightshift */ | |
| 909 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 910 | 64, /* bitsize */ | |
| b34976b6 | 911 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
912 | 0, /* bitpos */ |
| 913 | complain_overflow_dont, /* complain_on_overflow */ | |
| 914 | bfd_elf_generic_reloc, /* special_function */ | |
| 915 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 916 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 917 | 0, /* src_mask */ |
| f5e87a1d | 918 | ONES (64), /* dst_mask */ |
| b34976b6 | 919 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
920 | |
| 921 | /* 64-bit relative relocation. */ | |
| 922 | HOWTO (R_PPC64_REL64, /* type */ | |
| 923 | 0, /* rightshift */ | |
| 924 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 925 | 64, /* bitsize */ | |
| b34976b6 | 926 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
927 | 0, /* bitpos */ |
| 928 | complain_overflow_dont, /* complain_on_overflow */ | |
| 929 | bfd_elf_generic_reloc, /* special_function */ | |
| 930 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 931 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 932 | 0, /* src_mask */ |
| f5e87a1d | 933 | ONES (64), /* dst_mask */ |
| b34976b6 | 934 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 935 | |
| cedb70c5 | 936 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
937 | HOWTO (R_PPC64_PLT64, /* type */ |
| 938 | 0, /* rightshift */ | |
| 939 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 940 | 64, /* bitsize */ | |
| b34976b6 | 941 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
942 | 0, /* bitpos */ |
| 943 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 944 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 945 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 946 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 947 | 0, /* src_mask */ |
| f5e87a1d | 948 | ONES (64), /* dst_mask */ |
| b34976b6 | 949 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
950 | |
| 951 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 952 | table. */ | |
| 953 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 954 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 955 | 0, /* rightshift */ | |
| 956 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 957 | 64, /* bitsize */ | |
| b34976b6 | 958 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
959 | 0, /* bitpos */ |
| 960 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 961 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 962 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 963 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 964 | 0, /* src_mask */ |
| f5e87a1d | 965 | ONES (64), /* dst_mask */ |
| b34976b6 | 966 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
967 | |
| 968 | /* 16 bit TOC-relative relocation. */ | |
| 969 | ||
| 970 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 971 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 972 | 0, /* rightshift */ | |
| 973 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 974 | 16, /* bitsize */ | |
| b34976b6 | 975 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
976 | 0, /* bitpos */ |
| 977 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 978 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 979 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 980 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
981 | 0, /* src_mask */ |
| 982 | 0xffff, /* dst_mask */ | |
| b34976b6 | 983 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
984 | |
| 985 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 986 | ||
| 987 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 988 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 989 | 0, /* rightshift */ | |
| 990 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 991 | 16, /* bitsize */ | |
| b34976b6 | 992 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
993 | 0, /* bitpos */ |
| 994 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 995 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 996 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 997 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
998 | 0, /* src_mask */ |
| 999 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1000 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1001 | |
| 1002 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1003 | ||
| 1004 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1005 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1006 | 16, /* rightshift */ | |
| 1007 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1008 | 16, /* bitsize */ | |
| b34976b6 | 1009 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1010 | 0, /* bitpos */ |
| f9c6b907 | 1011 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1012 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1013 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1014 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1015 | 0, /* src_mask */ |
| 1016 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1017 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1018 | |
| 1019 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1020 | contents of the low 16 bits, treated as a signed number, is | |
| 1021 | negative. */ | |
| 1022 | ||
| 1023 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1024 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1025 | 16, /* rightshift */ | |
| 1026 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1027 | 16, /* bitsize */ | |
| b34976b6 | 1028 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1029 | 0, /* bitpos */ |
| f9c6b907 | 1030 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1031 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1032 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1033 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1034 | 0, /* src_mask */ |
| 1035 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1036 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1037 | |
| 1038 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1039 | ||
| 1040 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1041 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1042 | 0, /* rightshift */ | |
| 1043 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1044 | 64, /* bitsize */ | |
| b34976b6 | 1045 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1046 | 0, /* bitpos */ |
| b80eed39 | 1047 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1048 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1049 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1050 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1051 | 0, /* src_mask */ |
| f5e87a1d | 1052 | ONES (64), /* dst_mask */ |
| b34976b6 | 1053 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1054 | |
| 1055 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1056 | value to relocate may (!) refer to a PLT entry which the link | |
| 1057 | editor (a) may replace with the symbol value. If the link editor | |
| 1058 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1059 | entry and store the address to the new PLT entry in the GOT. | |
| 1060 | This permits lazy resolution of function symbols at run time. | |
| 1061 | The link editor may also skip all of this and just (c) emit a | |
| 1062 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1063 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1064 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1065 | 0, /* rightshift */ | |
| 1066 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1067 | 16, /* bitsize */ | |
| b34976b6 | 1068 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1069 | 0, /* bitpos */ |
| 1070 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1071 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1072 | "R_PPC64_PLTGOT16", /* name */ |
| 1073 | FALSE, /* partial_inplace */ | |
| 1074 | 0, /* src_mask */ | |
| 1075 | 0xffff, /* dst_mask */ | |
| 1076 | FALSE), /* pcrel_offset */ | |
| 1077 | ||
| 1078 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1079 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1080 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1081 | 0, /* rightshift */ | |
| 1082 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1083 | 16, /* bitsize */ | |
| 1084 | FALSE, /* pc_relative */ | |
| 1085 | 0, /* bitpos */ | |
| 1086 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1087 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1088 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1089 | FALSE, /* partial_inplace */ | |
| 1090 | 0, /* src_mask */ | |
| 1091 | 0xffff, /* dst_mask */ | |
| 1092 | FALSE), /* pcrel_offset */ | |
| 1093 | ||
| 1094 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1095 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1096 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1097 | 16, /* rightshift */ | |
| 1098 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1099 | 16, /* bitsize */ | |
| 1100 | FALSE, /* pc_relative */ | |
| 1101 | 0, /* bitpos */ | |
| f9c6b907 | 1102 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1103 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1104 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1105 | FALSE, /* partial_inplace */ | |
| 1106 | 0, /* src_mask */ | |
| 1107 | 0xffff, /* dst_mask */ | |
| 1108 | FALSE), /* pcrel_offset */ | |
| 1109 | ||
| 1110 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1111 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1112 | is negative. */ | |
| 1113 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1114 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1115 | 16, /* rightshift */ | |
| 1116 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1117 | 16, /* bitsize */ | |
| 1118 | FALSE, /* pc_relative */ | |
| 1119 | 0, /* bitpos */ | |
| f9c6b907 | 1120 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1121 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1122 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1123 | FALSE, /* partial_inplace */ | |
| 1124 | 0, /* src_mask */ | |
| 1125 | 0xffff, /* dst_mask */ | |
| 1126 | FALSE), /* pcrel_offset */ | |
| 1127 | ||
| 1128 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1129 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1130 | 0, /* rightshift */ | |
| 1131 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1132 | 16, /* bitsize */ | |
| 1133 | FALSE, /* pc_relative */ | |
| 1134 | 0, /* bitpos */ | |
| b80eed39 | 1135 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1136 | bfd_elf_generic_reloc, /* special_function */ |
| 1137 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1138 | FALSE, /* partial_inplace */ | |
| 1139 | 0, /* src_mask */ | |
| 1140 | 0xfffc, /* dst_mask */ | |
| 1141 | FALSE), /* pcrel_offset */ | |
| 1142 | ||
| 1143 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1144 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1145 | 0, /* rightshift */ | |
| 1146 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1147 | 16, /* bitsize */ | |
| 1148 | FALSE, /* pc_relative */ | |
| 1149 | 0, /* bitpos */ | |
| 1150 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1151 | bfd_elf_generic_reloc, /* special_function */ | |
| 1152 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1153 | FALSE, /* partial_inplace */ | |
| 1154 | 0, /* src_mask */ | |
| 1155 | 0xfffc, /* dst_mask */ | |
| 1156 | FALSE), /* pcrel_offset */ | |
| 1157 | ||
| 1158 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1159 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1160 | 0, /* rightshift */ | |
| 1161 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1162 | 16, /* bitsize */ | |
| 1163 | FALSE, /* pc_relative */ | |
| 1164 | 0, /* bitpos */ | |
| 1165 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1166 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1167 | "R_PPC64_GOT16_DS", /* name */ | |
| 1168 | FALSE, /* partial_inplace */ | |
| 1169 | 0, /* src_mask */ | |
| 1170 | 0xfffc, /* dst_mask */ | |
| 1171 | FALSE), /* pcrel_offset */ | |
| 1172 | ||
| 1173 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1174 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1175 | 0, /* rightshift */ | |
| 1176 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1177 | 16, /* bitsize */ | |
| 1178 | FALSE, /* pc_relative */ | |
| 1179 | 0, /* bitpos */ | |
| 1180 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1181 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1182 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1183 | FALSE, /* partial_inplace */ | |
| 1184 | 0, /* src_mask */ | |
| 1185 | 0xfffc, /* dst_mask */ | |
| 1186 | FALSE), /* pcrel_offset */ | |
| 1187 | ||
| 1188 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1189 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1190 | 0, /* rightshift */ | |
| 1191 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1192 | 16, /* bitsize */ | |
| 1193 | FALSE, /* pc_relative */ | |
| 1194 | 0, /* bitpos */ | |
| 1195 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1196 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1197 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1198 | FALSE, /* partial_inplace */ | |
| 1199 | 0, /* src_mask */ | |
| 1200 | 0xfffc, /* dst_mask */ | |
| 1201 | FALSE), /* pcrel_offset */ | |
| 1202 | ||
| 1203 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1204 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1205 | 0, /* rightshift */ | |
| 1206 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1207 | 16, /* bitsize */ | |
| 1208 | FALSE, /* pc_relative */ | |
| 1209 | 0, /* bitpos */ | |
| b80eed39 | 1210 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1211 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1212 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1213 | FALSE, /* partial_inplace */ | |
| 1214 | 0, /* src_mask */ | |
| 1215 | 0xfffc, /* dst_mask */ | |
| 1216 | FALSE), /* pcrel_offset */ | |
| 1217 | ||
| 1218 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1219 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1220 | 0, /* rightshift */ | |
| 1221 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1222 | 16, /* bitsize */ | |
| 1223 | FALSE, /* pc_relative */ | |
| 1224 | 0, /* bitpos */ | |
| 1225 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1226 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1227 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1228 | FALSE, /* partial_inplace */ | |
| 1229 | 0, /* src_mask */ | |
| 1230 | 0xfffc, /* dst_mask */ | |
| 1231 | FALSE), /* pcrel_offset */ | |
| 1232 | ||
| 1233 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1234 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1235 | 0, /* rightshift */ | |
| 1236 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1237 | 16, /* bitsize */ | |
| 1238 | FALSE, /* pc_relative */ | |
| 1239 | 0, /* bitpos */ | |
| 1240 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1241 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1242 | "R_PPC64_TOC16_DS", /* name */ | |
| 1243 | FALSE, /* partial_inplace */ | |
| 1244 | 0, /* src_mask */ | |
| 1245 | 0xfffc, /* dst_mask */ | |
| 1246 | FALSE), /* pcrel_offset */ | |
| 1247 | ||
| 1248 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1249 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1250 | 0, /* rightshift */ | |
| 1251 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1252 | 16, /* bitsize */ | |
| 1253 | FALSE, /* pc_relative */ | |
| 1254 | 0, /* bitpos */ | |
| 1255 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1256 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1257 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1258 | FALSE, /* partial_inplace */ | |
| 1259 | 0, /* src_mask */ | |
| 1260 | 0xfffc, /* dst_mask */ | |
| 1261 | FALSE), /* pcrel_offset */ | |
| 1262 | ||
| 1263 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1264 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1265 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1266 | 0, /* rightshift */ |
| 1267 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1268 | 16, /* bitsize */ | |
| 1269 | FALSE, /* pc_relative */ | |
| 1270 | 0, /* bitpos */ | |
| 1271 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1272 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1273 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1274 | FALSE, /* partial_inplace */ | |
| 1275 | 0, /* src_mask */ | |
| 1276 | 0xfffc, /* dst_mask */ | |
| 1277 | FALSE), /* pcrel_offset */ | |
| 1278 | ||
| 1279 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1280 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1281 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1282 | 0, /* rightshift */ | |
| 1283 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1284 | 16, /* bitsize */ | |
| 1285 | FALSE, /* pc_relative */ | |
| 1286 | 0, /* bitpos */ | |
| 1287 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1288 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1289 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1290 | FALSE, /* partial_inplace */ | |
| 1291 | 0, /* src_mask */ | |
| 1292 | 0xfffc, /* dst_mask */ | |
| 1293 | FALSE), /* pcrel_offset */ | |
| 1294 | ||
| 727fc41e | 1295 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1296 | HOWTO (R_PPC64_TLS, |
| 1297 | 0, /* rightshift */ | |
| 1298 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1299 | 32, /* bitsize */ | |
| 1300 | FALSE, /* pc_relative */ | |
| 1301 | 0, /* bitpos */ | |
| 1302 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1303 | bfd_elf_generic_reloc, /* special_function */ | |
| 1304 | "R_PPC64_TLS", /* name */ | |
| 1305 | FALSE, /* partial_inplace */ | |
| 1306 | 0, /* src_mask */ | |
| 1307 | 0, /* dst_mask */ | |
| 1308 | FALSE), /* pcrel_offset */ | |
| 1309 | ||
| 727fc41e AM |
1310 | HOWTO (R_PPC64_TLSGD, |
| 1311 | 0, /* rightshift */ | |
| 1312 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1313 | 32, /* bitsize */ | |
| 1314 | FALSE, /* pc_relative */ | |
| 1315 | 0, /* bitpos */ | |
| 1316 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1317 | bfd_elf_generic_reloc, /* special_function */ | |
| 1318 | "R_PPC64_TLSGD", /* name */ | |
| 1319 | FALSE, /* partial_inplace */ | |
| 1320 | 0, /* src_mask */ | |
| 1321 | 0, /* dst_mask */ | |
| 1322 | FALSE), /* pcrel_offset */ | |
| 1323 | ||
| 1324 | HOWTO (R_PPC64_TLSLD, | |
| 1325 | 0, /* rightshift */ | |
| 1326 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1327 | 32, /* bitsize */ | |
| 1328 | FALSE, /* pc_relative */ | |
| 1329 | 0, /* bitpos */ | |
| 1330 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1331 | bfd_elf_generic_reloc, /* special_function */ | |
| 1332 | "R_PPC64_TLSLD", /* name */ | |
| 1333 | FALSE, /* partial_inplace */ | |
| 1334 | 0, /* src_mask */ | |
| 1335 | 0, /* dst_mask */ | |
| 1336 | FALSE), /* pcrel_offset */ | |
| 1337 | ||
| 3b421ab3 AM |
1338 | HOWTO (R_PPC64_TOCSAVE, |
| 1339 | 0, /* rightshift */ | |
| 1340 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1341 | 32, /* bitsize */ | |
| 1342 | FALSE, /* pc_relative */ | |
| 1343 | 0, /* bitpos */ | |
| 1344 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1345 | bfd_elf_generic_reloc, /* special_function */ | |
| 1346 | "R_PPC64_TOCSAVE", /* name */ | |
| 1347 | FALSE, /* partial_inplace */ | |
| 1348 | 0, /* src_mask */ | |
| 1349 | 0, /* dst_mask */ | |
| 1350 | FALSE), /* pcrel_offset */ | |
| 1351 | ||
| 411e1bfb AM |
1352 | /* Computes the load module index of the load module that contains the |
| 1353 | definition of its TLS sym. */ | |
| 1354 | HOWTO (R_PPC64_DTPMOD64, | |
| 1355 | 0, /* rightshift */ | |
| 1356 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1357 | 64, /* bitsize */ | |
| 1358 | FALSE, /* pc_relative */ | |
| 1359 | 0, /* bitpos */ | |
| 1360 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1361 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1362 | "R_PPC64_DTPMOD64", /* name */ | |
| 1363 | FALSE, /* partial_inplace */ | |
| 1364 | 0, /* src_mask */ | |
| 1365 | ONES (64), /* dst_mask */ | |
| 1366 | FALSE), /* pcrel_offset */ | |
| 1367 | ||
| 1368 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1369 | of sym+add and the base address of the thread-local storage block that | |
| 1370 | contains the definition of sym, minus 0x8000. */ | |
| 1371 | HOWTO (R_PPC64_DTPREL64, | |
| 1372 | 0, /* rightshift */ | |
| 1373 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1374 | 64, /* bitsize */ | |
| 1375 | FALSE, /* pc_relative */ | |
| 1376 | 0, /* bitpos */ | |
| 1377 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1378 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1379 | "R_PPC64_DTPREL64", /* name */ | |
| 1380 | FALSE, /* partial_inplace */ | |
| 1381 | 0, /* src_mask */ | |
| 1382 | ONES (64), /* dst_mask */ | |
| 1383 | FALSE), /* pcrel_offset */ | |
| 1384 | ||
| 1385 | /* A 16 bit dtprel reloc. */ | |
| 1386 | HOWTO (R_PPC64_DTPREL16, | |
| 1387 | 0, /* rightshift */ | |
| 1388 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1389 | 16, /* bitsize */ | |
| 1390 | FALSE, /* pc_relative */ | |
| 1391 | 0, /* bitpos */ | |
| 1392 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1393 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1394 | "R_PPC64_DTPREL16", /* name */ | |
| 1395 | FALSE, /* partial_inplace */ | |
| 1396 | 0, /* src_mask */ | |
| 1397 | 0xffff, /* dst_mask */ | |
| 1398 | FALSE), /* pcrel_offset */ | |
| 1399 | ||
| 1400 | /* Like DTPREL16, but no overflow. */ | |
| 1401 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1402 | 0, /* rightshift */ | |
| 1403 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1404 | 16, /* bitsize */ | |
| 1405 | FALSE, /* pc_relative */ | |
| 1406 | 0, /* bitpos */ | |
| 1407 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1408 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1409 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1410 | FALSE, /* partial_inplace */ | |
| 1411 | 0, /* src_mask */ | |
| 1412 | 0xffff, /* dst_mask */ | |
| 1413 | FALSE), /* pcrel_offset */ | |
| 1414 | ||
| 1415 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1416 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1417 | 16, /* rightshift */ | |
| 1418 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1419 | 16, /* bitsize */ | |
| 1420 | FALSE, /* pc_relative */ | |
| 1421 | 0, /* bitpos */ | |
| f9c6b907 | 1422 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1423 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1424 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1425 | FALSE, /* partial_inplace */ | |
| 1426 | 0, /* src_mask */ | |
| 1427 | 0xffff, /* dst_mask */ | |
| 1428 | FALSE), /* pcrel_offset */ | |
| 1429 | ||
| 1430 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1431 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1432 | 16, /* rightshift */ | |
| 1433 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1434 | 16, /* bitsize */ | |
| 1435 | FALSE, /* pc_relative */ | |
| 1436 | 0, /* bitpos */ | |
| f9c6b907 | 1437 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1438 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1439 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1440 | FALSE, /* partial_inplace */ | |
| 1441 | 0, /* src_mask */ | |
| 1442 | 0xffff, /* dst_mask */ | |
| 1443 | FALSE), /* pcrel_offset */ | |
| 1444 | ||
| 1445 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1446 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1447 | 32, /* rightshift */ | |
| 1448 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1449 | 16, /* bitsize */ | |
| 1450 | FALSE, /* pc_relative */ | |
| 1451 | 0, /* bitpos */ | |
| 1452 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1453 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1454 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1455 | FALSE, /* partial_inplace */ | |
| 1456 | 0, /* src_mask */ | |
| 1457 | 0xffff, /* dst_mask */ | |
| 1458 | FALSE), /* pcrel_offset */ | |
| 1459 | ||
| 1460 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1461 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1462 | 32, /* rightshift */ | |
| 1463 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1464 | 16, /* bitsize */ | |
| 1465 | FALSE, /* pc_relative */ | |
| 1466 | 0, /* bitpos */ | |
| 1467 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1468 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1469 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1470 | FALSE, /* partial_inplace */ | |
| 1471 | 0, /* src_mask */ | |
| 1472 | 0xffff, /* dst_mask */ | |
| 1473 | FALSE), /* pcrel_offset */ | |
| 1474 | ||
| 1475 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1476 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1477 | 48, /* rightshift */ | |
| 1478 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1479 | 16, /* bitsize */ | |
| 1480 | FALSE, /* pc_relative */ | |
| 1481 | 0, /* bitpos */ | |
| 1482 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1483 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1484 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1485 | FALSE, /* partial_inplace */ | |
| 1486 | 0, /* src_mask */ | |
| 1487 | 0xffff, /* dst_mask */ | |
| 1488 | FALSE), /* pcrel_offset */ | |
| 1489 | ||
| 1490 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1491 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1492 | 48, /* rightshift */ | |
| 1493 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1494 | 16, /* bitsize */ | |
| 1495 | FALSE, /* pc_relative */ | |
| 1496 | 0, /* bitpos */ | |
| 1497 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1498 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1499 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1500 | FALSE, /* partial_inplace */ | |
| 1501 | 0, /* src_mask */ | |
| 1502 | 0xffff, /* dst_mask */ | |
| 1503 | FALSE), /* pcrel_offset */ | |
| 1504 | ||
| 1505 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1506 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1507 | 0, /* rightshift */ | |
| 1508 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1509 | 16, /* bitsize */ | |
| 1510 | FALSE, /* pc_relative */ | |
| 1511 | 0, /* bitpos */ | |
| 1512 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1513 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1514 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1515 | FALSE, /* partial_inplace */ | |
| 1516 | 0, /* src_mask */ | |
| 1517 | 0xfffc, /* dst_mask */ | |
| 1518 | FALSE), /* pcrel_offset */ | |
| 1519 | ||
| 1520 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1521 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1522 | 0, /* rightshift */ | |
| 1523 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1524 | 16, /* bitsize */ | |
| 1525 | FALSE, /* pc_relative */ | |
| 1526 | 0, /* bitpos */ | |
| 1527 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1528 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1529 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1530 | FALSE, /* partial_inplace */ | |
| 1531 | 0, /* src_mask */ | |
| 1532 | 0xfffc, /* dst_mask */ | |
| 1533 | FALSE), /* pcrel_offset */ | |
| 1534 | ||
| 1535 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1536 | sym+add and the value of the thread pointer (r13). */ | |
| 1537 | HOWTO (R_PPC64_TPREL64, | |
| 1538 | 0, /* rightshift */ | |
| 1539 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1540 | 64, /* bitsize */ | |
| 1541 | FALSE, /* pc_relative */ | |
| 1542 | 0, /* bitpos */ | |
| 1543 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1544 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1545 | "R_PPC64_TPREL64", /* name */ | |
| 1546 | FALSE, /* partial_inplace */ | |
| 1547 | 0, /* src_mask */ | |
| 1548 | ONES (64), /* dst_mask */ | |
| 1549 | FALSE), /* pcrel_offset */ | |
| 1550 | ||
| 1551 | /* A 16 bit tprel reloc. */ | |
| 1552 | HOWTO (R_PPC64_TPREL16, | |
| 1553 | 0, /* rightshift */ | |
| 1554 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1555 | 16, /* bitsize */ | |
| 1556 | FALSE, /* pc_relative */ | |
| 1557 | 0, /* bitpos */ | |
| 1558 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1559 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1560 | "R_PPC64_TPREL16", /* name */ | |
| 1561 | FALSE, /* partial_inplace */ | |
| 1562 | 0, /* src_mask */ | |
| 1563 | 0xffff, /* dst_mask */ | |
| 1564 | FALSE), /* pcrel_offset */ | |
| 1565 | ||
| 1566 | /* Like TPREL16, but no overflow. */ | |
| 1567 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1568 | 0, /* rightshift */ | |
| 1569 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1570 | 16, /* bitsize */ | |
| 1571 | FALSE, /* pc_relative */ | |
| 1572 | 0, /* bitpos */ | |
| 1573 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1574 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1575 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1576 | FALSE, /* partial_inplace */ | |
| 1577 | 0, /* src_mask */ | |
| 1578 | 0xffff, /* dst_mask */ | |
| 1579 | FALSE), /* pcrel_offset */ | |
| 1580 | ||
| 1581 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1582 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1583 | 16, /* rightshift */ | |
| 1584 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1585 | 16, /* bitsize */ | |
| 1586 | FALSE, /* pc_relative */ | |
| 1587 | 0, /* bitpos */ | |
| f9c6b907 | 1588 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1589 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1590 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1591 | FALSE, /* partial_inplace */ | |
| 1592 | 0, /* src_mask */ | |
| 1593 | 0xffff, /* dst_mask */ | |
| 1594 | FALSE), /* pcrel_offset */ | |
| 1595 | ||
| 1596 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1597 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1598 | 16, /* rightshift */ | |
| 1599 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1600 | 16, /* bitsize */ | |
| 1601 | FALSE, /* pc_relative */ | |
| 1602 | 0, /* bitpos */ | |
| f9c6b907 | 1603 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1604 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1605 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1606 | FALSE, /* partial_inplace */ | |
| 1607 | 0, /* src_mask */ | |
| 1608 | 0xffff, /* dst_mask */ | |
| 1609 | FALSE), /* pcrel_offset */ | |
| 1610 | ||
| 1611 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1612 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1613 | 32, /* rightshift */ | |
| 1614 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1615 | 16, /* bitsize */ | |
| 1616 | FALSE, /* pc_relative */ | |
| 1617 | 0, /* bitpos */ | |
| 1618 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1619 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1620 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1621 | FALSE, /* partial_inplace */ | |
| 1622 | 0, /* src_mask */ | |
| 1623 | 0xffff, /* dst_mask */ | |
| 1624 | FALSE), /* pcrel_offset */ | |
| 1625 | ||
| 1626 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1627 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1628 | 32, /* rightshift */ | |
| 1629 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1630 | 16, /* bitsize */ | |
| 1631 | FALSE, /* pc_relative */ | |
| 1632 | 0, /* bitpos */ | |
| 1633 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1634 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1635 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1636 | FALSE, /* partial_inplace */ | |
| 1637 | 0, /* src_mask */ | |
| 1638 | 0xffff, /* dst_mask */ | |
| 1639 | FALSE), /* pcrel_offset */ | |
| 1640 | ||
| 1641 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1642 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1643 | 48, /* rightshift */ | |
| 1644 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1645 | 16, /* bitsize */ | |
| 1646 | FALSE, /* pc_relative */ | |
| 1647 | 0, /* bitpos */ | |
| 1648 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1649 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1650 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1651 | FALSE, /* partial_inplace */ | |
| 1652 | 0, /* src_mask */ | |
| 1653 | 0xffff, /* dst_mask */ | |
| 1654 | FALSE), /* pcrel_offset */ | |
| 1655 | ||
| 1656 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1657 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1658 | 48, /* rightshift */ | |
| 1659 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1660 | 16, /* bitsize */ | |
| 1661 | FALSE, /* pc_relative */ | |
| 1662 | 0, /* bitpos */ | |
| 1663 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1664 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1665 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1666 | FALSE, /* partial_inplace */ | |
| 1667 | 0, /* src_mask */ | |
| 1668 | 0xffff, /* dst_mask */ | |
| 1669 | FALSE), /* pcrel_offset */ | |
| 1670 | ||
| 1671 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1672 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1673 | 0, /* rightshift */ | |
| 1674 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1675 | 16, /* bitsize */ | |
| 1676 | FALSE, /* pc_relative */ | |
| 1677 | 0, /* bitpos */ | |
| 1678 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1679 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1680 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1681 | FALSE, /* partial_inplace */ | |
| 1682 | 0, /* src_mask */ | |
| 1683 | 0xfffc, /* dst_mask */ | |
| 1684 | FALSE), /* pcrel_offset */ | |
| 1685 | ||
| 1686 | /* Like TPREL16_DS, but no overflow. */ | |
| 1687 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1688 | 0, /* rightshift */ | |
| 1689 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1690 | 16, /* bitsize */ | |
| 1691 | FALSE, /* pc_relative */ | |
| 1692 | 0, /* bitpos */ | |
| 1693 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1694 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1695 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1696 | FALSE, /* partial_inplace */ | |
| 1697 | 0, /* src_mask */ | |
| 1698 | 0xfffc, /* dst_mask */ | |
| 1699 | FALSE), /* pcrel_offset */ | |
| 1700 | ||
| 1701 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1702 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1703 | to the first entry relative to the TOC base (r2). */ | |
| 1704 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1705 | 0, /* rightshift */ | |
| 1706 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1707 | 16, /* bitsize */ | |
| 1708 | FALSE, /* pc_relative */ | |
| 1709 | 0, /* bitpos */ | |
| 1710 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1711 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1712 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1713 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1714 | 0, /* src_mask */ |
| 1715 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1716 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1717 | |
| 411e1bfb AM |
1718 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1719 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1720 | 0, /* rightshift */ |
| 1721 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1722 | 16, /* bitsize */ | |
| b34976b6 | 1723 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1724 | 0, /* bitpos */ |
| 1725 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1726 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1727 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1728 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1729 | 0, /* src_mask */ |
| 1730 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1731 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1732 | |
| 411e1bfb AM |
1733 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1734 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1735 | 16, /* rightshift */ |
| 1736 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1737 | 16, /* bitsize */ | |
| b34976b6 | 1738 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1739 | 0, /* bitpos */ |
| f9c6b907 | 1740 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1741 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1742 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1743 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1744 | 0, /* src_mask */ |
| 1745 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1746 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1747 | |
| 411e1bfb AM |
1748 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1749 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1750 | 16, /* rightshift */ |
| 1751 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1752 | 16, /* bitsize */ | |
| b34976b6 | 1753 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1754 | 0, /* bitpos */ |
| f9c6b907 | 1755 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1756 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1757 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1758 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1759 | 0, /* src_mask */ |
| 1760 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1761 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1762 | |
| 411e1bfb AM |
1763 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1764 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1765 | first entry relative to the TOC base (r2). */ | |
| 1766 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1767 | 0, /* rightshift */ |
| 1768 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1769 | 16, /* bitsize */ | |
| b34976b6 | 1770 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1771 | 0, /* bitpos */ |
| 411e1bfb AM |
1772 | complain_overflow_signed, /* complain_on_overflow */ |
| 1773 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1774 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1775 | FALSE, /* partial_inplace */ |
| d006db6c | 1776 | 0, /* src_mask */ |
| 411e1bfb | 1777 | 0xffff, /* dst_mask */ |
| b34976b6 | 1778 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1779 | |
| 411e1bfb AM |
1780 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1781 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1782 | 0, /* rightshift */ |
| 1783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1784 | 16, /* bitsize */ | |
| b34976b6 | 1785 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1786 | 0, /* bitpos */ |
| 411e1bfb AM |
1787 | complain_overflow_dont, /* complain_on_overflow */ |
| 1788 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1789 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1790 | FALSE, /* partial_inplace */ |
| d006db6c | 1791 | 0, /* src_mask */ |
| 411e1bfb | 1792 | 0xffff, /* dst_mask */ |
| b34976b6 | 1793 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1794 | |
| 411e1bfb AM |
1795 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1796 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1797 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1799 | 16, /* bitsize */ | |
| b34976b6 | 1800 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1801 | 0, /* bitpos */ |
| f9c6b907 | 1802 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1803 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1804 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1805 | FALSE, /* partial_inplace */ |
| d006db6c | 1806 | 0, /* src_mask */ |
| 411e1bfb | 1807 | 0xffff, /* dst_mask */ |
| b34976b6 | 1808 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1809 | |
| 411e1bfb AM |
1810 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1811 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1812 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1813 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1814 | 16, /* bitsize */ | |
| b34976b6 | 1815 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1816 | 0, /* bitpos */ |
| f9c6b907 | 1817 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1818 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1819 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1820 | FALSE, /* partial_inplace */ |
| d006db6c | 1821 | 0, /* src_mask */ |
| 411e1bfb | 1822 | 0xffff, /* dst_mask */ |
| b34976b6 | 1823 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1824 | |
| 411e1bfb AM |
1825 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1826 | the offset to the entry relative to the TOC base (r2). */ | |
| 1827 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1828 | 0, /* rightshift */ |
| 1829 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1830 | 16, /* bitsize */ | |
| b34976b6 | 1831 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1832 | 0, /* bitpos */ |
| 411e1bfb | 1833 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1834 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1835 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1836 | FALSE, /* partial_inplace */ |
| d006db6c | 1837 | 0, /* src_mask */ |
| 5bd4f169 | 1838 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1839 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1840 | |
| 411e1bfb AM |
1841 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1842 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1843 | 0, /* rightshift */ |
| c061c2d8 AM |
1844 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1845 | 16, /* bitsize */ | |
| b34976b6 | 1846 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1847 | 0, /* bitpos */ |
| 411e1bfb AM |
1848 | complain_overflow_dont, /* complain_on_overflow */ |
| 1849 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1850 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1851 | FALSE, /* partial_inplace */ |
| d006db6c | 1852 | 0, /* src_mask */ |
| c061c2d8 | 1853 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1854 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1855 | |
| 411e1bfb AM |
1856 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1857 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1858 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1859 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1860 | 16, /* bitsize */ | |
| b34976b6 | 1861 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1862 | 0, /* bitpos */ |
| f9c6b907 | 1863 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1864 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1865 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1866 | FALSE, /* partial_inplace */ |
| d006db6c | 1867 | 0, /* src_mask */ |
| 411e1bfb | 1868 | 0xffff, /* dst_mask */ |
| b34976b6 | 1869 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1870 | |
| 411e1bfb AM |
1871 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1872 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1873 | 16, /* rightshift */ | |
| 1874 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1875 | 16, /* bitsize */ | |
| 1876 | FALSE, /* pc_relative */ | |
| 1877 | 0, /* bitpos */ | |
| f9c6b907 | 1878 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1879 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1880 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1881 | FALSE, /* partial_inplace */ | |
| 1882 | 0, /* src_mask */ | |
| 1883 | 0xffff, /* dst_mask */ | |
| 1884 | FALSE), /* pcrel_offset */ | |
| 1885 | ||
| 1886 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1887 | offset to the entry relative to the TOC base (r2). */ | |
| 1888 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1889 | 0, /* rightshift */ |
| 1890 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1891 | 16, /* bitsize */ | |
| b34976b6 | 1892 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1893 | 0, /* bitpos */ |
| 1894 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1895 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1896 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1897 | FALSE, /* partial_inplace */ |
| d006db6c | 1898 | 0, /* src_mask */ |
| ad8e1ba5 | 1899 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1900 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1901 | |
| 411e1bfb AM |
1902 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1903 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1904 | 0, /* rightshift */ |
| 1905 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1906 | 16, /* bitsize */ | |
| b34976b6 | 1907 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1908 | 0, /* bitpos */ |
| 1909 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1910 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1911 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1912 | FALSE, /* partial_inplace */ |
| d006db6c | 1913 | 0, /* src_mask */ |
| ad8e1ba5 | 1914 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1915 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1916 | |
| 411e1bfb AM |
1917 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1918 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1919 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1920 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1921 | 16, /* bitsize */ | |
| b34976b6 | 1922 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1923 | 0, /* bitpos */ |
| f9c6b907 | 1924 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1925 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1926 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1927 | FALSE, /* partial_inplace */ |
| d006db6c | 1928 | 0, /* src_mask */ |
| 411e1bfb | 1929 | 0xffff, /* dst_mask */ |
| b34976b6 | 1930 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1931 | |
| 411e1bfb AM |
1932 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1933 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1934 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1935 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1936 | 16, /* bitsize */ | |
| b34976b6 | 1937 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1938 | 0, /* bitpos */ |
| f9c6b907 | 1939 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1940 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1941 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1942 | FALSE, /* partial_inplace */ |
| d006db6c | 1943 | 0, /* src_mask */ |
| 411e1bfb | 1944 | 0xffff, /* dst_mask */ |
| b34976b6 | 1945 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1946 | |
| 25f23106 AM |
1947 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1948 | 0, /* rightshift */ | |
| 1949 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1950 | 0, /* bitsize */ | |
| 1951 | FALSE, /* pc_relative */ | |
| 1952 | 0, /* bitpos */ | |
| 1953 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1954 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1955 | "R_PPC64_JMP_IREL", /* name */ | |
| 1956 | FALSE, /* partial_inplace */ | |
| 1957 | 0, /* src_mask */ | |
| 1958 | 0, /* dst_mask */ | |
| 1959 | FALSE), /* pcrel_offset */ | |
| 1960 | ||
| e054468f AM |
1961 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1962 | 0, /* rightshift */ | |
| 1963 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1964 | 64, /* bitsize */ | |
| 1965 | FALSE, /* pc_relative */ | |
| 1966 | 0, /* bitpos */ | |
| 1967 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1968 | bfd_elf_generic_reloc, /* special_function */ | |
| 1969 | "R_PPC64_IRELATIVE", /* name */ | |
| 1970 | FALSE, /* partial_inplace */ | |
| 1971 | 0, /* src_mask */ | |
| 1972 | ONES (64), /* dst_mask */ | |
| 1973 | FALSE), /* pcrel_offset */ | |
| 1974 | ||
| 25f23106 AM |
1975 | /* A 16 bit relative relocation. */ |
| 1976 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1977 | 0, /* rightshift */ | |
| 1978 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1979 | 16, /* bitsize */ | |
| 1980 | TRUE, /* pc_relative */ | |
| 1981 | 0, /* bitpos */ | |
| b80eed39 | 1982 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1983 | bfd_elf_generic_reloc, /* special_function */ |
| 1984 | "R_PPC64_REL16", /* name */ | |
| 1985 | FALSE, /* partial_inplace */ | |
| 1986 | 0, /* src_mask */ | |
| 1987 | 0xffff, /* dst_mask */ | |
| 1988 | TRUE), /* pcrel_offset */ | |
| 1989 | ||
| 1990 | /* A 16 bit relative relocation without overflow. */ | |
| 1991 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1992 | 0, /* rightshift */ | |
| 1993 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1994 | 16, /* bitsize */ | |
| 1995 | TRUE, /* pc_relative */ | |
| 1996 | 0, /* bitpos */ | |
| 1997 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1998 | bfd_elf_generic_reloc, /* special_function */ | |
| 1999 | "R_PPC64_REL16_LO", /* name */ | |
| 2000 | FALSE, /* partial_inplace */ | |
| 2001 | 0, /* src_mask */ | |
| 2002 | 0xffff, /* dst_mask */ | |
| 2003 | TRUE), /* pcrel_offset */ | |
| 2004 | ||
| 2005 | /* The high order 16 bits of a relative address. */ | |
| 2006 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2007 | 16, /* rightshift */ | |
| 2008 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2009 | 16, /* bitsize */ | |
| 2010 | TRUE, /* pc_relative */ | |
| 2011 | 0, /* bitpos */ | |
| f9c6b907 | 2012 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2013 | bfd_elf_generic_reloc, /* special_function */ |
| 2014 | "R_PPC64_REL16_HI", /* name */ | |
| 2015 | FALSE, /* partial_inplace */ | |
| 2016 | 0, /* src_mask */ | |
| 2017 | 0xffff, /* dst_mask */ | |
| 2018 | TRUE), /* pcrel_offset */ | |
| 2019 | ||
| 2020 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2021 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2022 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2023 | 16, /* rightshift */ | |
| 2024 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2025 | 16, /* bitsize */ | |
| 2026 | TRUE, /* pc_relative */ | |
| 2027 | 0, /* bitpos */ | |
| f9c6b907 | 2028 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2029 | ppc64_elf_ha_reloc, /* special_function */ |
| 2030 | "R_PPC64_REL16_HA", /* name */ | |
| 2031 | FALSE, /* partial_inplace */ | |
| 2032 | 0, /* src_mask */ | |
| 2033 | 0xffff, /* dst_mask */ | |
| 2034 | TRUE), /* pcrel_offset */ | |
| 2035 | ||
| a680de9a PB |
2036 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2037 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2038 | 16, /* rightshift */ | |
| 2039 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2040 | 16, /* bitsize */ | |
| 2041 | TRUE, /* pc_relative */ | |
| 2042 | 0, /* bitpos */ | |
| 2043 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2044 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2045 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2046 | FALSE, /* partial_inplace */ | |
| 2047 | 0, /* src_mask */ | |
| 2048 | 0x1fffc1, /* dst_mask */ | |
| 2049 | TRUE), /* pcrel_offset */ | |
| 2050 | ||
| 7ba71655 AM |
2051 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2052 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2053 | 16, /* rightshift */ | |
| 2054 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2055 | 16, /* bitsize */ | |
| 2056 | FALSE, /* pc_relative */ | |
| 2057 | 0, /* bitpos */ | |
| 2058 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2059 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2060 | "R_PPC64_16DX_HA", /* name */ | |
| 2061 | FALSE, /* partial_inplace */ | |
| 2062 | 0, /* src_mask */ | |
| 2063 | 0x1fffc1, /* dst_mask */ | |
| 2064 | FALSE), /* pcrel_offset */ | |
| 2065 | ||
| f9c6b907 AM |
2066 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2067 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2068 | 16, /* rightshift */ | |
| 2069 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2070 | 16, /* bitsize */ | |
| 2071 | FALSE, /* pc_relative */ | |
| 2072 | 0, /* bitpos */ | |
| 2073 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2074 | bfd_elf_generic_reloc, /* special_function */ | |
| 2075 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2076 | FALSE, /* partial_inplace */ | |
| 2077 | 0, /* src_mask */ | |
| 2078 | 0xffff, /* dst_mask */ | |
| 2079 | FALSE), /* pcrel_offset */ | |
| 2080 | ||
| 2081 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2082 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2083 | 16, /* rightshift */ | |
| 2084 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2085 | 16, /* bitsize */ | |
| 2086 | FALSE, /* pc_relative */ | |
| 2087 | 0, /* bitpos */ | |
| 2088 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2089 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2090 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2091 | FALSE, /* partial_inplace */ | |
| 2092 | 0, /* src_mask */ | |
| 2093 | 0xffff, /* dst_mask */ | |
| 2094 | FALSE), /* pcrel_offset */ | |
| 2095 | ||
| 2096 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2097 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2098 | 16, /* rightshift */ | |
| 2099 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2100 | 16, /* bitsize */ | |
| 2101 | FALSE, /* pc_relative */ | |
| 2102 | 0, /* bitpos */ | |
| 2103 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2104 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2105 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2106 | FALSE, /* partial_inplace */ | |
| 2107 | 0, /* src_mask */ | |
| 2108 | 0xffff, /* dst_mask */ | |
| 2109 | FALSE), /* pcrel_offset */ | |
| 2110 | ||
| 2111 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2112 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2113 | 16, /* rightshift */ | |
| 2114 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2115 | 16, /* bitsize */ | |
| 2116 | FALSE, /* pc_relative */ | |
| 2117 | 0, /* bitpos */ | |
| 2118 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2119 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2120 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2121 | FALSE, /* partial_inplace */ | |
| 2122 | 0, /* src_mask */ | |
| 2123 | 0xffff, /* dst_mask */ | |
| 2124 | FALSE), /* pcrel_offset */ | |
| 2125 | ||
| 2126 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2127 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2128 | 16, /* rightshift */ | |
| 2129 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2130 | 16, /* bitsize */ | |
| 2131 | FALSE, /* pc_relative */ | |
| 2132 | 0, /* bitpos */ | |
| 2133 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2134 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2135 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2136 | FALSE, /* partial_inplace */ | |
| 2137 | 0, /* src_mask */ | |
| 2138 | 0xffff, /* dst_mask */ | |
| 2139 | FALSE), /* pcrel_offset */ | |
| 2140 | ||
| 2141 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2142 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2143 | 16, /* rightshift */ | |
| 2144 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2145 | 16, /* bitsize */ | |
| 2146 | FALSE, /* pc_relative */ | |
| 2147 | 0, /* bitpos */ | |
| 2148 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2149 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2150 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2151 | FALSE, /* partial_inplace */ | |
| 2152 | 0, /* src_mask */ | |
| 2153 | 0xffff, /* dst_mask */ | |
| 2154 | FALSE), /* pcrel_offset */ | |
| 2155 | ||
| 006589cf AM |
2156 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2157 | HOWTO (R_PPC64_ENTRY, | |
| 2158 | 0, /* rightshift */ | |
| 2159 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2160 | 32, /* bitsize */ | |
| 2161 | FALSE, /* pc_relative */ | |
| 2162 | 0, /* bitpos */ | |
| 2163 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2164 | bfd_elf_generic_reloc, /* special_function */ | |
| 2165 | "R_PPC64_ENTRY", /* name */ | |
| 2166 | FALSE, /* partial_inplace */ | |
| 2167 | 0, /* src_mask */ | |
| 2168 | 0, /* dst_mask */ | |
| 2169 | FALSE), /* pcrel_offset */ | |
| 2170 | ||
| 45965137 AM |
2171 | /* Like ADDR64, but use local entry point of function. */ |
| 2172 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2173 | 0, /* rightshift */ | |
| 2174 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2175 | 64, /* bitsize */ | |
| 2176 | FALSE, /* pc_relative */ | |
| 2177 | 0, /* bitpos */ | |
| 2178 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2179 | bfd_elf_generic_reloc, /* special_function */ | |
| 2180 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2181 | FALSE, /* partial_inplace */ | |
| 2182 | 0, /* src_mask */ | |
| 2183 | ONES (64), /* dst_mask */ | |
| 2184 | FALSE), /* pcrel_offset */ | |
| 2185 | ||
| 5bd4f169 AM |
2186 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2187 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2188 | 0, /* rightshift */ | |
| 2189 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2190 | 0, /* bitsize */ | |
| b34976b6 | 2191 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2192 | 0, /* bitpos */ |
| 2193 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2194 | NULL, /* special_function */ | |
| 2195 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2196 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2197 | 0, /* src_mask */ |
| 2198 | 0, /* dst_mask */ | |
| b34976b6 | 2199 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2200 | |
| 2201 | /* GNU extension to record C++ vtable member usage. */ | |
| 2202 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2203 | 0, /* rightshift */ | |
| 2204 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2205 | 0, /* bitsize */ | |
| b34976b6 | 2206 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2207 | 0, /* bitpos */ |
| 2208 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2209 | NULL, /* special_function */ | |
| 2210 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2211 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2212 | 0, /* src_mask */ |
| 2213 | 0, /* dst_mask */ | |
| b34976b6 | 2214 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2215 | }; |
| 2216 | ||
| 2217 | \f | |
| 2218 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2219 | be done. */ | |
| 2220 | ||
| 2221 | static void | |
| 4ce794b7 | 2222 | ppc_howto_init (void) |
| 5bd4f169 AM |
2223 | { |
| 2224 | unsigned int i, type; | |
| 2225 | ||
| a4b6fadd | 2226 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2227 | { |
| 2228 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2229 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2230 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2231 | } | |
| 2232 | } | |
| 2233 | ||
| 2234 | static reloc_howto_type * | |
| f3185997 | 2235 | ppc64_elf_reloc_type_lookup (bfd *abfd, |
| 4ce794b7 | 2236 | bfd_reloc_code_real_type code) |
| 5bd4f169 | 2237 | { |
| 411e1bfb | 2238 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2239 | |
| 2240 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2241 | /* Initialize howto table if needed. */ | |
| 2242 | ppc_howto_init (); | |
| 2243 | ||
| 4ce794b7 | 2244 | switch (code) |
| 5bd4f169 AM |
2245 | { |
| 2246 | default: | |
| f3185997 | 2247 | /* xgettext:c-format */ |
| e8f5af78 | 2248 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), abfd, (int) code); |
| f3185997 | 2249 | bfd_set_error (bfd_error_bad_value); |
| 4ce794b7 | 2250 | return NULL; |
| 5bd4f169 | 2251 | |
| 411e1bfb AM |
2252 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2253 | break; | |
| 2254 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2255 | break; | |
| 2256 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2257 | break; | |
| 2258 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2259 | break; | |
| 2260 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2261 | break; | |
| 2262 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2263 | break; | |
| f9c6b907 AM |
2264 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2265 | break; | |
| 411e1bfb | 2266 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2267 | break; |
| f9c6b907 AM |
2268 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2269 | break; | |
| 411e1bfb | 2270 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2315 | break; |
| 411e1bfb | 2316 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2317 | break; |
| 411e1bfb | 2318 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2319 | break; |
| 411e1bfb | 2320 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2327 | break; |
| 411e1bfb | 2328 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2329 | break; |
| 411e1bfb | 2330 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2331 | break; |
| 411e1bfb | 2332 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2333 | break; |
| 411e1bfb | 2334 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2335 | break; |
| 411e1bfb | 2336 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2337 | break; |
| 411e1bfb | 2338 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2339 | break; |
| 411e1bfb | 2340 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2341 | break; |
| 411e1bfb | 2342 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2343 | break; |
| 411e1bfb | 2344 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2345 | break; |
| 411e1bfb | 2346 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2347 | break; |
| 411e1bfb | 2348 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2349 | break; |
| 411e1bfb | 2350 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2351 | break; |
| 411e1bfb | 2352 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2353 | break; |
| 411e1bfb | 2354 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2355 | break; |
| 411e1bfb | 2356 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2357 | break; |
| 411e1bfb | 2358 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2359 | break; |
| 411e1bfb | 2360 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2361 | break; |
| 411e1bfb | 2362 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2363 | break; |
| 411e1bfb | 2364 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2365 | break; |
| 411e1bfb | 2366 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2367 | break; |
| 411e1bfb | 2368 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2369 | break; |
| 411e1bfb | 2370 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2371 | break; |
| 411e1bfb | 2372 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2373 | break; |
| 411e1bfb | 2374 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2375 | break; |
| 727fc41e AM |
2376 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2377 | break; | |
| 2378 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2379 | break; | |
| 411e1bfb | 2380 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2381 | break; |
| 411e1bfb | 2382 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2383 | break; |
| 411e1bfb | 2384 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2385 | break; |
| 411e1bfb | 2386 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2387 | break; |
| f9c6b907 AM |
2388 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2389 | break; | |
| 411e1bfb | 2390 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2391 | break; |
| f9c6b907 AM |
2392 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2393 | break; | |
| 411e1bfb | 2394 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2395 | break; |
| 411e1bfb AM |
2396 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2397 | break; | |
| 2398 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2399 | break; | |
| 2400 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2401 | break; | |
| f9c6b907 AM |
2402 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2403 | break; | |
| 411e1bfb AM |
2404 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2405 | break; | |
| f9c6b907 AM |
2406 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2407 | break; | |
| 411e1bfb AM |
2408 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2409 | break; | |
| 2410 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2413 | break; | |
| 2414 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2415 | break; | |
| 2416 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2417 | break; | |
| 2418 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2419 | break; | |
| 2420 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2421 | break; | |
| 2422 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2423 | break; | |
| 2424 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2425 | break; | |
| 2426 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2427 | break; | |
| 2428 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2429 | break; | |
| 2430 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2431 | break; | |
| 2432 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2433 | break; | |
| 2434 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2435 | break; | |
| 2436 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2437 | break; | |
| 2438 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2439 | break; | |
| 2440 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2441 | break; | |
| 2442 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2443 | break; | |
| 2444 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2445 | break; | |
| 2446 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2447 | break; | |
| 2448 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2449 | break; | |
| 2450 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2451 | break; | |
| 2452 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2453 | break; | |
| 2454 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2455 | break; | |
| 2456 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2457 | break; | |
| 2458 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2459 | break; | |
| 2460 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2461 | break; | |
| 2462 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2463 | break; | |
| 2464 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2465 | break; | |
| 25f23106 AM |
2466 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2467 | break; | |
| 2468 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2469 | break; | |
| 2470 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2471 | break; | |
| 2472 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2473 | break; | |
| 7ba71655 AM |
2474 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2475 | break; | |
| a680de9a PB |
2476 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2477 | break; | |
| 006589cf AM |
2478 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2479 | break; | |
| 45965137 AM |
2480 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2481 | break; | |
| 411e1bfb AM |
2482 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2483 | break; | |
| 2484 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2485 | break; |
| 2486 | } | |
| 2487 | ||
| 4ce794b7 | 2488 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2489 | }; |
| 2490 | ||
| 157090f7 AM |
2491 | static reloc_howto_type * |
| 2492 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2493 | const char *r_name) | |
| 2494 | { | |
| 2495 | unsigned int i; | |
| 2496 | ||
| a4b6fadd | 2497 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2498 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2499 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2500 | return &ppc64_elf_howto_raw[i]; | |
| 2501 | ||
| f3185997 | 2502 | |
| 157090f7 AM |
2503 | return NULL; |
| 2504 | } | |
| 2505 | ||
| 5bd4f169 AM |
2506 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2507 | ||
| f3185997 | 2508 | static bfd_boolean |
| 4aef7643 | 2509 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2510 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2511 | { |
| 65f38f15 AM |
2512 | unsigned int type; |
| 2513 | ||
| ef60b7ff | 2514 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2515 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2516 | ppc_howto_init (); |
| 2517 | ||
| 65f38f15 | 2518 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2519 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2520 | { |
| 695344c0 | 2521 | /* xgettext:c-format */ |
| 0aa13fee | 2522 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), |
| cf97bcb0 | 2523 | abfd, type); |
| f3185997 NC |
2524 | bfd_set_error (bfd_error_bad_value); |
| 2525 | return FALSE; | |
| d0fb9a8d | 2526 | } |
| 65f38f15 | 2527 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| f3185997 NC |
2528 | if (cache_ptr->howto == NULL || cache_ptr->howto->name == NULL) |
| 2529 | { | |
| 2530 | /* xgettext:c-format */ | |
| 2531 | _bfd_error_handler (_("%pB: unsupported relocation type %#x"), | |
| 2532 | abfd, type); | |
| 2533 | bfd_set_error (bfd_error_bad_value); | |
| 2534 | return FALSE; | |
| 2535 | } | |
| 2536 | ||
| 2537 | return TRUE; | |
| 5bd4f169 AM |
2538 | } |
| 2539 | ||
| 04c9666a | 2540 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2541 | |
| 2542 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2543 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2544 | void *data, asection *input_section, | |
| 2545 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2546 | { |
| a680de9a PB |
2547 | enum elf_ppc64_reloc_type r_type; |
| 2548 | long insn; | |
| 2549 | bfd_size_type octets; | |
| 3de43e7b | 2550 | bfd_vma value; |
| a680de9a | 2551 | |
| 805fc799 AM |
2552 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2553 | call the generic function. Any adjustment will be done at final | |
| 2554 | link time. */ | |
| 2555 | if (output_bfd != NULL) | |
| cedb70c5 | 2556 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2557 | input_section, output_bfd, error_message); |
| 2558 | ||
| 2559 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2560 | We won't actually be using the low 16 bits, so trashing them | |
| 2561 | doesn't matter. */ | |
| 2562 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2563 | r_type = reloc_entry->howto->type; |
| 2564 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2565 | return bfd_reloc_continue; | |
| 2566 | ||
| 2567 | value = 0; | |
| 2568 | if (!bfd_is_com_section (symbol->section)) | |
| 2569 | value = symbol->value; | |
| 2570 | value += (reloc_entry->addend | |
| 2571 | + symbol->section->output_offset | |
| 2572 | + symbol->section->output_section->vma); | |
| 2573 | value -= (reloc_entry->address | |
| 2574 | + input_section->output_offset | |
| 2575 | + input_section->output_section->vma); | |
| 3de43e7b | 2576 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2577 | |
| 2578 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2579 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2580 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2581 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2582 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2583 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2584 | return bfd_reloc_overflow; |
| 2585 | return bfd_reloc_ok; | |
| 805fc799 | 2586 | } |
| 5bd4f169 | 2587 | |
| 2441e016 AM |
2588 | static bfd_reloc_status_type |
| 2589 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2590 | void *data, asection *input_section, | |
| 2591 | bfd *output_bfd, char **error_message) | |
| 2592 | { | |
| 2593 | if (output_bfd != NULL) | |
| 2594 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2595 | input_section, output_bfd, error_message); | |
| 2596 | ||
| 699733f6 AM |
2597 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2598 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2599 | { |
| 2600 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2601 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2602 | NULL, NULL, FALSE); |
| 2441e016 AM |
2603 | if (dest != (bfd_vma) -1) |
| 2604 | reloc_entry->addend = dest - (symbol->value | |
| 2605 | + symbol->section->output_section->vma | |
| 2606 | + symbol->section->output_offset); | |
| 2607 | } | |
| 810d4e75 AM |
2608 | else |
| 2609 | { | |
| 2610 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2611 | ||
| 2612 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2613 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2614 | && abiversion (symbol->section->owner) >= 2) |
| 2615 | { | |
| 2616 | unsigned int i; | |
| 2617 | ||
| 2618 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2619 | { | |
| 2620 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2621 | ||
| 2622 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2623 | { | |
| 2624 | elfsym = (elf_symbol_type *) symdef; | |
| 2625 | break; | |
| 2626 | } | |
| 2627 | } | |
| 2628 | } | |
| 2629 | reloc_entry->addend | |
| 2630 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2631 | } | |
| 2441e016 AM |
2632 | return bfd_reloc_continue; |
| 2633 | } | |
| 2634 | ||
| 805fc799 | 2635 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2636 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2637 | void *data, asection *input_section, | |
| 2638 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2639 | { |
| 2640 | long insn; | |
| 04c9666a | 2641 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2642 | bfd_size_type octets; |
| 794e51c0 AM |
2643 | /* Assume 'at' branch hints. */ |
| 2644 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2645 | |
| 2646 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2647 | call the generic function. Any adjustment will be done at final | |
| 2648 | link time. */ | |
| 5bd4f169 | 2649 | if (output_bfd != NULL) |
| cedb70c5 | 2650 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2651 | input_section, output_bfd, error_message); |
| 2652 | ||
| 2653 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2654 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2655 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2656 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2657 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2658 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2659 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2660 | |
| 794e51c0 | 2661 | if (is_isa_v2) |
| 5bd4f169 | 2662 | { |
| 805fc799 AM |
2663 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2664 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2665 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2666 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2667 | insn |= 0x02 << 21; | |
| 2668 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2669 | insn |= 0x08 << 21; | |
| 2670 | else | |
| 2441e016 | 2671 | goto out; |
| 5bd4f169 | 2672 | } |
| 805fc799 AM |
2673 | else |
| 2674 | { | |
| 2675 | bfd_vma target = 0; | |
| 2676 | bfd_vma from; | |
| 5bd4f169 | 2677 | |
| 805fc799 AM |
2678 | if (!bfd_is_com_section (symbol->section)) |
| 2679 | target = symbol->value; | |
| 2680 | target += symbol->section->output_section->vma; | |
| 2681 | target += symbol->section->output_offset; | |
| 2682 | target += reloc_entry->addend; | |
| 5bd4f169 | 2683 | |
| 805fc799 AM |
2684 | from = (reloc_entry->address |
| 2685 | + input_section->output_offset | |
| 2686 | + input_section->output_section->vma); | |
| 5bd4f169 | 2687 | |
| 805fc799 AM |
2688 | /* Invert 'y' bit if not the default. */ |
| 2689 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2690 | insn ^= 0x01 << 21; | |
| 2691 | } | |
| 4ce794b7 | 2692 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2693 | out: |
| 2694 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2695 | input_section, output_bfd, error_message); | |
| 805fc799 | 2696 | } |
| 5bd4f169 | 2697 | |
| 805fc799 | 2698 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2699 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2700 | void *data, asection *input_section, | |
| 2701 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2702 | { |
| 2703 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2704 | call the generic function. Any adjustment will be done at final | |
| 2705 | link time. */ | |
| 2706 | if (output_bfd != NULL) | |
| cedb70c5 | 2707 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2708 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2709 | |
| 805fc799 AM |
2710 | /* Subtract the symbol section base address. */ |
| 2711 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2712 | return bfd_reloc_continue; |
| 2713 | } | |
| 2714 | ||
| 805fc799 | 2715 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2716 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2717 | void *data, asection *input_section, | |
| 2718 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2719 | { |
| 2720 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2721 | call the generic function. Any adjustment will be done at final | |
| 2722 | link time. */ | |
| 2723 | if (output_bfd != NULL) | |
| cedb70c5 | 2724 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2725 | input_section, output_bfd, error_message); |
| 2726 | ||
| 2727 | /* Subtract the symbol section base address. */ | |
| 2728 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2729 | ||
| 2730 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2731 | reloc_entry->addend += 0x8000; | |
| 2732 | return bfd_reloc_continue; | |
| 2733 | } | |
| 2734 | ||
| 2735 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2736 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2737 | void *data, asection *input_section, | |
| 2738 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2739 | { |
| 2740 | bfd_vma TOCstart; | |
| 2741 | ||
| 2742 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2743 | call the generic function. Any adjustment will be done at final | |
| 2744 | link time. */ | |
| 2745 | if (output_bfd != NULL) | |
| cedb70c5 | 2746 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2747 | input_section, output_bfd, error_message); |
| 2748 | ||
| 2749 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2750 | if (TOCstart == 0) | |
| 1c865ab2 | 2751 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2752 | |
| 2753 | /* Subtract the TOC base address. */ | |
| 2754 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2755 | return bfd_reloc_continue; | |
| 2756 | } | |
| 2757 | ||
| 2758 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2759 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2760 | void *data, asection *input_section, | |
| 2761 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2762 | { |
| 2763 | bfd_vma TOCstart; | |
| 2764 | ||
| 2765 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2766 | call the generic function. Any adjustment will be done at final | |
| 2767 | link time. */ | |
| 2768 | if (output_bfd != NULL) | |
| cedb70c5 | 2769 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2770 | input_section, output_bfd, error_message); |
| 2771 | ||
| 2772 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2773 | if (TOCstart == 0) | |
| 1c865ab2 | 2774 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2775 | |
| 2776 | /* Subtract the TOC base address. */ | |
| 2777 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2778 | ||
| 2779 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2780 | reloc_entry->addend += 0x8000; | |
| 2781 | return bfd_reloc_continue; | |
| 2782 | } | |
| 2783 | ||
| 2784 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2785 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2786 | void *data, asection *input_section, | |
| 2787 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2788 | { |
| 2789 | bfd_vma TOCstart; | |
| 2790 | bfd_size_type octets; | |
| 2791 | ||
| 2792 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2793 | call the generic function. Any adjustment will be done at final | |
| 2794 | link time. */ | |
| 2795 | if (output_bfd != NULL) | |
| cedb70c5 | 2796 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2797 | input_section, output_bfd, error_message); |
| 2798 | ||
| 2799 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2800 | if (TOCstart == 0) | |
| 1c865ab2 | 2801 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2802 | |
| 2803 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2804 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2805 | return bfd_reloc_ok; | |
| 2806 | } | |
| 2807 | ||
| 2808 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2809 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2810 | void *data, asection *input_section, | |
| 2811 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2812 | { |
| 2813 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2814 | call the generic function. Any adjustment will be done at final | |
| 2815 | link time. */ | |
| 2816 | if (output_bfd != NULL) | |
| cedb70c5 | 2817 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2818 | input_section, output_bfd, error_message); |
| 2819 | ||
| 2820 | if (error_message != NULL) | |
| 2821 | { | |
| 2822 | static char buf[60]; | |
| 2823 | sprintf (buf, "generic linker can't handle %s", | |
| 2824 | reloc_entry->howto->name); | |
| 2825 | *error_message = buf; | |
| 2826 | } | |
| 2827 | return bfd_reloc_dangerous; | |
| 2828 | } | |
| 2829 | ||
| 927be08e AM |
2830 | /* Track GOT entries needed for a given symbol. We might need more |
| 2831 | than one got entry per symbol. */ | |
| 2832 | struct got_entry | |
| 2833 | { | |
| 2834 | struct got_entry *next; | |
| 2835 | ||
| 2836 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2837 | bfd_vma addend; | |
| 2838 | ||
| 2839 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2840 | symbol referenced from different input files. This is to support | |
| 2841 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2842 | from one input file to another. After partitioning into TOC groups | |
| 2843 | we merge entries within the group. | |
| 2844 | ||
| 2845 | Point to the BFD owning this GOT entry. */ | |
| 2846 | bfd *owner; | |
| 2847 | ||
| 2848 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2849 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2850 | unsigned char tls_type; |
| 927be08e AM |
2851 | |
| 2852 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2853 | unsigned char is_indirect; |
| 927be08e AM |
2854 | |
| 2855 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2856 | union | |
| 2857 | { | |
| 2858 | bfd_signed_vma refcount; | |
| 2859 | bfd_vma offset; | |
| 2860 | struct got_entry *ent; | |
| 2861 | } got; | |
| 2862 | }; | |
| 2863 | ||
| 2864 | /* The same for PLT. */ | |
| 2865 | struct plt_entry | |
| 2866 | { | |
| 2867 | struct plt_entry *next; | |
| 2868 | ||
| 2869 | bfd_vma addend; | |
| 2870 | ||
| 2871 | union | |
| 2872 | { | |
| 2873 | bfd_signed_vma refcount; | |
| 2874 | bfd_vma offset; | |
| 2875 | } plt; | |
| 2876 | }; | |
| 2877 | ||
| e717da7e AM |
2878 | struct ppc64_elf_obj_tdata |
| 2879 | { | |
| 2880 | struct elf_obj_tdata elf; | |
| 2881 | ||
| 2882 | /* Shortcuts to dynamic linker sections. */ | |
| 2883 | asection *got; | |
| 2884 | asection *relgot; | |
| 2885 | ||
| b3fac117 AM |
2886 | /* Used during garbage collection. We attach global symbols defined |
| 2887 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2888 | asection *deleted_section; | |
| 81688140 | 2889 | |
| 927be08e | 2890 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2891 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2892 | struct got_entry tlsld_got; |
| 8860955f | 2893 | |
| 729eabd5 AM |
2894 | union { |
| 2895 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2896 | Elf_Internal_Rela *relocs; | |
| 2897 | ||
| 2898 | /* Section contents. */ | |
| 2899 | bfd_byte *contents; | |
| 2900 | } opd; | |
| d77c8a4b AM |
2901 | |
| 2902 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2903 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2904 | unsigned int has_small_toc_reloc : 1; |
| 2905 | ||
| 560c8763 AM |
2906 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2907 | instruction not one we handle. */ | |
| 2908 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2909 | }; |
| 2910 | ||
| 2911 | #define ppc64_elf_tdata(bfd) \ | |
| 2912 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2913 | ||
| 2914 | #define ppc64_tlsld_got(bfd) \ | |
| 2915 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2916 | ||
| 0c8d6e5c AM |
2917 | #define is_ppc64_elf(bfd) \ |
| 2918 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2919 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2920 | |
| e717da7e AM |
2921 | /* Override the generic function because we store some extras. */ |
| 2922 | ||
| 2923 | static bfd_boolean | |
| 2924 | ppc64_elf_mkobject (bfd *abfd) | |
| 2925 | { | |
| 0ffa91dd | 2926 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2927 | PPC64_ELF_DATA); |
| e717da7e AM |
2928 | } |
| 2929 | ||
| feee612b | 2930 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2931 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2932 | |
| b34976b6 | 2933 | static bfd_boolean |
| 4ce794b7 | 2934 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2935 | { |
| 14b57c7c AM |
2936 | if (!abfd->arch_info->the_default) |
| 2937 | return TRUE; | |
| 2938 | ||
| 2939 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2940 | { |
| 2941 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2942 | ||
| 2943 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2944 | { | |
| 2945 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2946 | abfd->arch_info = abfd->arch_info->next; | |
| 2947 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2948 | } | |
| 2949 | } | |
| 14b57c7c | 2950 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2951 | } |
| 2952 | ||
| d37c89e5 AM |
2953 | /* Support for core dump NOTE sections. */ |
| 2954 | ||
| 2955 | static bfd_boolean | |
| 2956 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2957 | { | |
| eea6121a | 2958 | size_t offset, size; |
| d37c89e5 AM |
2959 | |
| 2960 | if (note->descsz != 504) | |
| 2961 | return FALSE; | |
| 2962 | ||
| 2963 | /* pr_cursig */ | |
| 228e534f | 2964 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2965 | |
| 2966 | /* pr_pid */ | |
| 228e534f | 2967 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2968 | |
| 2969 | /* pr_reg */ | |
| 2970 | offset = 112; | |
| eea6121a | 2971 | size = 384; |
| d37c89e5 AM |
2972 | |
| 2973 | /* Make a ".reg/999" section. */ | |
| 2974 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2975 | size, note->descpos + offset); |
| d37c89e5 AM |
2976 | } |
| 2977 | ||
| 2978 | static bfd_boolean | |
| 2979 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2980 | { | |
| 2981 | if (note->descsz != 136) | |
| 2982 | return FALSE; | |
| 2983 | ||
| 228e534f | 2984 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2985 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2986 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2987 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2988 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2989 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2990 | ||
| 2991 | return TRUE; | |
| 2992 | } | |
| 2993 | ||
| 183e98be AM |
2994 | static char * |
| 2995 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2996 | ...) | |
| 2997 | { | |
| 2998 | switch (note_type) | |
| 2999 | { | |
| 3000 | default: | |
| 3001 | return NULL; | |
| 3002 | ||
| 3003 | case NT_PRPSINFO: | |
| 3004 | { | |
| 3005 | char data[136]; | |
| 3006 | va_list ap; | |
| 3007 | ||
| 3008 | va_start (ap, note_type); | |
| 75cd47ed | 3009 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
3010 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 3011 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 3012 | va_end (ap); | |
| 3013 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3014 | "CORE", note_type, data, sizeof (data)); | |
| 3015 | } | |
| 3016 | ||
| 3017 | case NT_PRSTATUS: | |
| 3018 | { | |
| 3019 | char data[504]; | |
| 3020 | va_list ap; | |
| 3021 | long pid; | |
| 3022 | int cursig; | |
| 3023 | const void *greg; | |
| 3024 | ||
| 3025 | va_start (ap, note_type); | |
| 3026 | memset (data, 0, 112); | |
| 3027 | pid = va_arg (ap, long); | |
| 3028 | bfd_put_32 (abfd, pid, data + 32); | |
| 3029 | cursig = va_arg (ap, int); | |
| 3030 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3031 | greg = va_arg (ap, const void *); | |
| 3032 | memcpy (data + 112, greg, 384); | |
| 3033 | memset (data + 496, 0, 8); | |
| 3034 | va_end (ap); | |
| 3035 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3036 | "CORE", note_type, data, sizeof (data)); | |
| 3037 | } | |
| 3038 | } | |
| 3039 | } | |
| 3040 | ||
| 5d35169e AM |
3041 | /* Add extra PPC sections. */ |
| 3042 | ||
| b35d266b | 3043 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3044 | { |
| 07d6d2b8 AM |
3045 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3046 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3047 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 AM |
3048 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, |
| 3049 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 0112cd26 | 3050 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, |
| 07d6d2b8 | 3051 | { NULL, 0, 0, 0, 0 } |
| 5d35169e AM |
3052 | }; |
| 3053 | ||
| 7c8fe5c4 AM |
3054 | enum _ppc64_sec_type { |
| 3055 | sec_normal = 0, | |
| 3056 | sec_opd = 1, | |
| 3057 | sec_toc = 2 | |
| 3058 | }; | |
| 3059 | ||
| f0abc2a1 AM |
3060 | struct _ppc64_elf_section_data |
| 3061 | { | |
| 3062 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3063 | |
| f0abc2a1 AM |
3064 | union |
| 3065 | { | |
| 51aecdc5 AM |
3066 | /* An array with one entry for each opd function descriptor, |
| 3067 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3068 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3069 | struct _opd_sec_data |
| 3070 | { | |
| 3071 | /* Points to the function code section for local opd entries. */ | |
| 3072 | asection **func_sec; | |
| 3073 | ||
| 3074 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3075 | long *adjust; | |
| 3076 | } opd; | |
| 7c8fe5c4 | 3077 | |
| 3a71aa26 AM |
3078 | /* An array for toc sections, indexed by offset/8. */ |
| 3079 | struct _toc_sec_data | |
| 3080 | { | |
| 3081 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3082 | unsigned *symndx; | |
| 3083 | ||
| 3084 | /* And the relocation addend. */ | |
| 3085 | bfd_vma *add; | |
| 3086 | } toc; | |
| 7c8fe5c4 AM |
3087 | } u; |
| 3088 | ||
| 3089 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3090 | |
| 7c8fe5c4 AM |
3091 | /* Flag set when small branches are detected. Used to |
| 3092 | select suitable defaults for the stub group size. */ | |
| 3093 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3094 | }; |
| 3095 | ||
| 3096 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3097 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3098 | |
| 3099 | static bfd_boolean | |
| 4ce794b7 | 3100 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3101 | { |
| f592407e AM |
3102 | if (!sec->used_by_bfd) |
| 3103 | { | |
| 3104 | struct _ppc64_elf_section_data *sdata; | |
| 3105 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3106 | |
| f592407e AM |
3107 | sdata = bfd_zalloc (abfd, amt); |
| 3108 | if (sdata == NULL) | |
| 3109 | return FALSE; | |
| 3110 | sec->used_by_bfd = sdata; | |
| 3111 | } | |
| f0abc2a1 AM |
3112 | |
| 3113 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3114 | } | |
| 4025353c | 3115 | |
| 74f0fb50 | 3116 | static struct _opd_sec_data * |
| 4025353c AM |
3117 | get_opd_info (asection * sec) |
| 3118 | { | |
| 3119 | if (sec != NULL | |
| 3120 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3121 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3122 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3123 | return NULL; |
| 3124 | } | |
| 90e3cdf2 JJ |
3125 | \f |
| 3126 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3127 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3128 | static asection *synthetic_opd; |
| 90e3cdf2 | 3129 | |
| 699733f6 | 3130 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3131 | |
| 3132 | static int | |
| 3133 | compare_symbols (const void *ap, const void *bp) | |
| 3134 | { | |
| 3135 | const asymbol *a = * (const asymbol **) ap; | |
| 3136 | const asymbol *b = * (const asymbol **) bp; | |
| 3137 | ||
| 699733f6 AM |
3138 | /* Section symbols first. */ |
| 3139 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3140 | return -1; |
| 699733f6 | 3141 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3142 | return 1; |
| 3143 | ||
| 699733f6 | 3144 | /* then .opd symbols. */ |
| cd285db5 AM |
3145 | if (synthetic_opd != NULL) |
| 3146 | { | |
| 3147 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3148 | && strcmp (b->section->name, ".opd") != 0) | |
| 3149 | return -1; | |
| 3150 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3151 | && strcmp (b->section->name, ".opd") == 0) | |
| 3152 | return 1; | |
| 3153 | } | |
| 90e3cdf2 | 3154 | |
| 699733f6 | 3155 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3156 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3157 | == (SEC_CODE | SEC_ALLOC) | |
| 3158 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3159 | != (SEC_CODE | SEC_ALLOC)) | |
| 3160 | return -1; | |
| 3161 | ||
| 3162 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3163 | != (SEC_CODE | SEC_ALLOC) | |
| 3164 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3165 | == (SEC_CODE | SEC_ALLOC)) | |
| 3166 | return 1; | |
| 3167 | ||
| 3168 | if (synthetic_relocatable) | |
| 3169 | { | |
| 3170 | if (a->section->id < b->section->id) | |
| 3171 | return -1; | |
| 3172 | ||
| 3173 | if (a->section->id > b->section->id) | |
| 3174 | return 1; | |
| 3175 | } | |
| 3176 | ||
| 3177 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3178 | return -1; | |
| 3179 | ||
| 3180 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3181 | return 1; | |
| 3182 | ||
| 4d35a0aa AM |
3183 | /* For syms with the same value, prefer strong dynamic global function |
| 3184 | syms over other syms. */ | |
| 3185 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3186 | return -1; | |
| 3187 | ||
| 3188 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3189 | return 1; | |
| 3190 | ||
| 3191 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3192 | return -1; | |
| 3193 | ||
| 3194 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3195 | return 1; | |
| 3196 | ||
| 3197 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3198 | return -1; | |
| 3199 | ||
| 3200 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3201 | return 1; | |
| 3202 | ||
| 3203 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3204 | return -1; | |
| 3205 | ||
| 3206 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3207 | return 1; | |
| 3208 | ||
| aaed6f5b | 3209 | return a > b; |
| 90e3cdf2 JJ |
3210 | } |
| 3211 | ||
| 699733f6 | 3212 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3213 | |
| 699733f6 | 3214 | static asymbol * |
| 7292b3ac | 3215 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3216 | { |
| 699733f6 | 3217 | long mid; |
| 90e3cdf2 | 3218 | |
| 7292b3ac | 3219 | if (id == (unsigned) -1) |
| 699733f6 AM |
3220 | { |
| 3221 | while (lo < hi) | |
| 3222 | { | |
| 3223 | mid = (lo + hi) >> 1; | |
| 3224 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3225 | lo = mid + 1; | |
| 3226 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3227 | hi = mid; | |
| 3228 | else | |
| 3229 | return syms[mid]; | |
| 3230 | } | |
| 3231 | } | |
| 3232 | else | |
| 3233 | { | |
| 3234 | while (lo < hi) | |
| 3235 | { | |
| 3236 | mid = (lo + hi) >> 1; | |
| 3237 | if (syms[mid]->section->id < id) | |
| 3238 | lo = mid + 1; | |
| 3239 | else if (syms[mid]->section->id > id) | |
| 3240 | hi = mid; | |
| 3241 | else if (syms[mid]->value < value) | |
| 3242 | lo = mid + 1; | |
| 3243 | else if (syms[mid]->value > value) | |
| 3244 | hi = mid; | |
| 3245 | else | |
| 3246 | return syms[mid]; | |
| 3247 | } | |
| 3248 | } | |
| 3249 | return NULL; | |
| 90e3cdf2 JJ |
3250 | } |
| 3251 | ||
| 468392fb AM |
3252 | static bfd_boolean |
| 3253 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3254 | { | |
| 3255 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3256 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3257 | && section->vma <= vma | |
| 3258 | && vma < section->vma + section->size); | |
| 3259 | } | |
| 3260 | ||
| 699733f6 | 3261 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3262 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3263 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3264 | |
| 3265 | static long | |
| a7535cf3 AM |
3266 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3267 | long static_count, asymbol **static_syms, | |
| 3268 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3269 | asymbol **ret) |
| 90e3cdf2 JJ |
3270 | { |
| 3271 | asymbol *s; | |
| 699733f6 AM |
3272 | long i; |
| 3273 | long count; | |
| 90e3cdf2 | 3274 | char *names; |
| a7535cf3 | 3275 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3276 | asection *opd = NULL; |
| 90e3cdf2 | 3277 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3278 | asymbol **syms; |
| ee67d69a | 3279 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3280 | |
| 3281 | *ret = NULL; | |
| 3282 | ||
| ee67d69a AM |
3283 | if (abi < 2) |
| 3284 | { | |
| 3285 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3286 | if (opd == NULL && abi == 1) | |
| 3287 | return 0; | |
| 3288 | } | |
| 90e3cdf2 | 3289 | |
| a5259595 AM |
3290 | syms = NULL; |
| 3291 | codesecsym = 0; | |
| 3292 | codesecsymend = 0; | |
| 3293 | secsymend = 0; | |
| 3294 | opdsymend = 0; | |
| 3295 | symcount = 0; | |
| 3296 | if (opd != NULL) | |
| c9727e01 | 3297 | { |
| a5259595 AM |
3298 | symcount = static_count; |
| 3299 | if (!relocatable) | |
| 3300 | symcount += dyn_count; | |
| 3301 | if (symcount == 0) | |
| 3302 | return 0; | |
| c9727e01 | 3303 | |
| a5259595 AM |
3304 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3305 | if (syms == NULL) | |
| 3306 | return -1; | |
| 90e3cdf2 | 3307 | |
| a5259595 AM |
3308 | if (!relocatable && static_count != 0 && dyn_count != 0) |
| 3309 | { | |
| 3310 | /* Use both symbol tables. */ | |
| 3311 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3312 | memcpy (syms + static_count, dyn_syms, | |
| 3313 | (dyn_count + 1) * sizeof (*syms)); | |
| 3314 | } | |
| 3315 | else if (!relocatable && static_count == 0) | |
| 3316 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3317 | else | |
| 3318 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 90e3cdf2 | 3319 | |
| a5259595 AM |
3320 | synthetic_relocatable = relocatable; |
| 3321 | synthetic_opd = opd; | |
| 3322 | qsort (syms, symcount, sizeof (*syms), compare_symbols); | |
| 90e3cdf2 | 3323 | |
| a5259595 AM |
3324 | if (!relocatable && symcount > 1) |
| 3325 | { | |
| 3326 | long j; | |
| 3327 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3328 | dynamic symbols. Actually, we only care about syms that have | |
| 3329 | different values, so trim any with the same value. */ | |
| 3330 | for (i = 1, j = 1; i < symcount; ++i) | |
| 3331 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3332 | != syms[i]->value + syms[i]->section->vma) | |
| 3333 | syms[j++] = syms[i]; | |
| 3334 | symcount = j; | |
| 3335 | } | |
| 699733f6 | 3336 | |
| a5259595 AM |
3337 | i = 0; |
| 3338 | /* Note that here and in compare_symbols we can't compare opd and | |
| 3339 | sym->section directly. With separate debug info files, the | |
| 3340 | symbols will be extracted from the debug file while abfd passed | |
| 3341 | to this function is the real binary. */ | |
| 3342 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 3343 | ++i; | |
| 3344 | codesecsym = i; | |
| 3345 | ||
| 3346 | for (; i < symcount; ++i) | |
| 3347 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | |
| 3348 | | SEC_THREAD_LOCAL)) | |
| 3349 | != (SEC_CODE | SEC_ALLOC)) | |
| 3350 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3351 | break; | |
| 3352 | codesecsymend = i; | |
| 3353 | ||
| 3354 | for (; i < symcount; ++i) | |
| 3355 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3356 | break; | |
| 3357 | secsymend = i; | |
| 3358 | ||
| 3359 | for (; i < symcount; ++i) | |
| 3360 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3361 | break; | |
| 3362 | opdsymend = i; | |
| 3363 | ||
| 3364 | for (; i < symcount; ++i) | |
| 3365 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3366 | != (SEC_CODE | SEC_ALLOC)) | |
| 3367 | break; | |
| 3368 | symcount = i; | |
| 3369 | } | |
| c9727e01 | 3370 | count = 0; |
| 90e3cdf2 | 3371 | |
| 699733f6 | 3372 | if (relocatable) |
| 90e3cdf2 | 3373 | { |
| 699733f6 AM |
3374 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3375 | arelent *r; | |
| 3376 | size_t size; | |
| 3377 | long relcount; | |
| 90e3cdf2 | 3378 | |
| 468392fb AM |
3379 | if (opdsymend == secsymend) |
| 3380 | goto done; | |
| 3381 | ||
| 699733f6 | 3382 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3383 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3384 | if (relcount == 0) |
| c9727e01 | 3385 | goto done; |
| 90e3cdf2 | 3386 | |
| 7356fed5 AM |
3387 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3388 | { | |
| 3389 | count = -1; | |
| 3390 | goto done; | |
| 3391 | } | |
| 3392 | ||
| 699733f6 | 3393 | size = 0; |
| 595da8c5 | 3394 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3395 | { |
| 3396 | asymbol *sym; | |
| 90e3cdf2 | 3397 | |
| 595da8c5 | 3398 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3399 | && r->address < syms[i]->value + opd->vma) |
| 3400 | ++r; | |
| 90e3cdf2 | 3401 | |
| 595da8c5 | 3402 | if (r == opd->relocation + relcount) |
| 699733f6 | 3403 | break; |
| 90e3cdf2 | 3404 | |
| 699733f6 AM |
3405 | if (r->address != syms[i]->value + opd->vma) |
| 3406 | continue; | |
| 90e3cdf2 | 3407 | |
| 699733f6 AM |
3408 | if (r->howto->type != R_PPC64_ADDR64) |
| 3409 | continue; | |
| 90e3cdf2 | 3410 | |
| 699733f6 AM |
3411 | sym = *r->sym_ptr_ptr; |
| 3412 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3413 | sym->section->id, sym->value + r->addend)) | |
| 3414 | { | |
| 3415 | ++count; | |
| 3416 | size += sizeof (asymbol); | |
| 3417 | size += strlen (syms[i]->name) + 2; | |
| 3418 | } | |
| 3419 | } | |
| 90e3cdf2 | 3420 | |
| c4b0b099 AM |
3421 | if (size == 0) |
| 3422 | goto done; | |
| 699733f6 AM |
3423 | s = *ret = bfd_malloc (size); |
| 3424 | if (s == NULL) | |
| 3425 | { | |
| 7356fed5 | 3426 | count = -1; |
| c9727e01 | 3427 | goto done; |
| 699733f6 | 3428 | } |
| 90e3cdf2 | 3429 | |
| 699733f6 | 3430 | names = (char *) (s + count); |
| 90e3cdf2 | 3431 | |
| 595da8c5 | 3432 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3433 | { |
| 699733f6 | 3434 | asymbol *sym; |
| 90e3cdf2 | 3435 | |
| 595da8c5 | 3436 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3437 | && r->address < syms[i]->value + opd->vma) |
| 3438 | ++r; | |
| 90e3cdf2 | 3439 | |
| 595da8c5 | 3440 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3441 | break; |
| 3442 | ||
| 3443 | if (r->address != syms[i]->value + opd->vma) | |
| 3444 | continue; | |
| 3445 | ||
| 3446 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3447 | continue; | |
| 90e3cdf2 | 3448 | |
| 699733f6 AM |
3449 | sym = *r->sym_ptr_ptr; |
| 3450 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3451 | sym->section->id, sym->value + r->addend)) | |
| 3452 | { | |
| 3453 | size_t len; | |
| 3454 | ||
| 3455 | *s = *syms[i]; | |
| 6ba2a415 | 3456 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3457 | s->section = sym->section; |
| 3458 | s->value = sym->value + r->addend; | |
| 3459 | s->name = names; | |
| 3460 | *names++ = '.'; | |
| 3461 | len = strlen (syms[i]->name); | |
| 3462 | memcpy (names, syms[i]->name, len + 1); | |
| 3463 | names += len + 1; | |
| 6f610d07 UW |
3464 | /* Have udata.p point back to the original symbol this |
| 3465 | synthetic symbol was derived from. */ | |
| 3466 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3467 | s++; |
| 3468 | } | |
| 3469 | } | |
| 3470 | } | |
| 3471 | else | |
| 90e3cdf2 | 3472 | { |
| 468392fb | 3473 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3474 | bfd_byte *contents = NULL; |
| 699733f6 | 3475 | size_t size; |
| 468392fb AM |
3476 | long plt_count = 0; |
| 3477 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3478 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3479 | arelent *p; | |
| 90e3cdf2 | 3480 | |
| ee67d69a | 3481 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3482 | { |
| c4b0b099 AM |
3483 | free_contents_and_exit_err: |
| 3484 | count = -1; | |
| ee67d69a | 3485 | free_contents_and_exit: |
| 699733f6 | 3486 | if (contents) |
| ee67d69a | 3487 | free (contents); |
| c9727e01 | 3488 | goto done; |
| 699733f6 | 3489 | } |
| 90e3cdf2 | 3490 | |
| 699733f6 AM |
3491 | size = 0; |
| 3492 | for (i = secsymend; i < opdsymend; ++i) | |
| 3493 | { | |
| 3494 | bfd_vma ent; | |
| 90e3cdf2 | 3495 | |
| 5ef11c02 AM |
3496 | /* Ignore bogus symbols. */ |
| 3497 | if (syms[i]->value > opd->size - 8) | |
| 3498 | continue; | |
| 3499 | ||
| 699733f6 AM |
3500 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3501 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3502 | { | |
| 3503 | ++count; | |
| 3504 | size += sizeof (asymbol); | |
| 3505 | size += strlen (syms[i]->name) + 2; | |
| 3506 | } | |
| 3507 | } | |
| 90e3cdf2 | 3508 | |
| 468392fb | 3509 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3510 | if (dyn_count != 0 |
| 3511 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3512 | { |
| 3513 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3514 | size_t extdynsize; | |
| 3515 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3516 | ||
| 3517 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3518 | goto free_contents_and_exit_err; |
| 468392fb AM |
3519 | |
| 3520 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3521 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3522 | ||
| 3523 | extdyn = dynbuf; | |
| 3524 | extdynend = extdyn + dynamic->size; | |
| 3525 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3526 | { | |
| 3527 | Elf_Internal_Dyn dyn; | |
| 3528 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3529 | ||
| 3530 | if (dyn.d_tag == DT_NULL) | |
| 3531 | break; | |
| 3532 | ||
| 3533 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3534 | { | |
| 9e390558 AM |
3535 | /* The first glink stub starts at DT_PPC64_GLINK plus 32. |
| 3536 | See comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3537 | glink_vma = dyn.d_un.d_val + 8 * 4; | |
| 468392fb AM |
3538 | /* The .glink section usually does not survive the final |
| 3539 | link; search for the section (usually .text) where the | |
| 3540 | glink stubs now reside. */ | |
| 3541 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3542 | &glink_vma); | |
| 3543 | break; | |
| 3544 | } | |
| 3545 | } | |
| 3546 | ||
| 3547 | free (dynbuf); | |
| 3548 | } | |
| 3549 | ||
| 3550 | if (glink != NULL) | |
| 3551 | { | |
| 3552 | /* Determine __glink trampoline by reading the relative branch | |
| 3553 | from the first glink stub. */ | |
| 3554 | bfd_byte buf[4]; | |
| b9e5796b AM |
3555 | unsigned int off = 0; |
| 3556 | ||
| 3557 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3558 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3559 | { |
| 3560 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3561 | insn ^= B_DOT; | |
| 3562 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3563 | { |
| 3564 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3565 | break; | |
| 3566 | } | |
| 3567 | off += 4; | |
| 3568 | if (off > 4) | |
| 3569 | break; | |
| 468392fb AM |
3570 | } |
| 3571 | ||
| 3572 | if (resolv_vma) | |
| 3573 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3574 | |
| 066ee829 AM |
3575 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3576 | if (relplt != NULL) | |
| 3577 | { | |
| 3578 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3579 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3580 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3581 | |
| 066ee829 AM |
3582 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3583 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3584 | |
| 066ee829 AM |
3585 | p = relplt->relocation; |
| 3586 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3587 | { |
| 3588 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3589 | if (p->addend != 0) | |
| 3590 | size += sizeof ("+0x") - 1 + 16; | |
| 3591 | } | |
| 066ee829 | 3592 | } |
| 468392fb AM |
3593 | } |
| 3594 | ||
| c4b0b099 AM |
3595 | if (size == 0) |
| 3596 | goto free_contents_and_exit; | |
| 699733f6 AM |
3597 | s = *ret = bfd_malloc (size); |
| 3598 | if (s == NULL) | |
| c4b0b099 | 3599 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3600 | |
| 468392fb | 3601 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3602 | |
| 699733f6 | 3603 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3604 | { |
| 699733f6 | 3605 | bfd_vma ent; |
| 90e3cdf2 | 3606 | |
| 5ef11c02 AM |
3607 | if (syms[i]->value > opd->size - 8) |
| 3608 | continue; | |
| 3609 | ||
| 699733f6 AM |
3610 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3611 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3612 | { |
| c9727e01 | 3613 | long lo, hi; |
| 699733f6 | 3614 | size_t len; |
| c9727e01 | 3615 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3616 | |
| 699733f6 AM |
3617 | *s = *syms[i]; |
| 3618 | lo = codesecsym; | |
| 3619 | hi = codesecsymend; | |
| 3620 | while (lo < hi) | |
| 3621 | { | |
| c9727e01 | 3622 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3623 | if (syms[mid]->section->vma < ent) |
| 3624 | lo = mid + 1; | |
| 3625 | else if (syms[mid]->section->vma > ent) | |
| 3626 | hi = mid; | |
| 3627 | else | |
| c9727e01 AM |
3628 | { |
| 3629 | sec = syms[mid]->section; | |
| 3630 | break; | |
| 3631 | } | |
| 699733f6 AM |
3632 | } |
| 3633 | ||
| c9727e01 | 3634 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3635 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3636 | |
| 3637 | for (; sec != NULL; sec = sec->next) | |
| 3638 | { | |
| 3639 | if (sec->vma > ent) | |
| 3640 | break; | |
| 63524580 JK |
3641 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3642 | info file. */ | |
| 3643 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3644 | break; |
| 3645 | if ((sec->flags & SEC_CODE) != 0) | |
| 3646 | s->section = sec; | |
| 3647 | } | |
| 6ba2a415 | 3648 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3649 | s->value = ent - s->section->vma; |
| 3650 | s->name = names; | |
| 3651 | *names++ = '.'; | |
| 3652 | len = strlen (syms[i]->name); | |
| 3653 | memcpy (names, syms[i]->name, len + 1); | |
| 3654 | names += len + 1; | |
| 6f610d07 UW |
3655 | /* Have udata.p point back to the original symbol this |
| 3656 | synthetic symbol was derived from. */ | |
| 3657 | s->udata.p = syms[i]; | |
| 699733f6 | 3658 | s++; |
| 90e3cdf2 | 3659 | } |
| 90e3cdf2 | 3660 | } |
| 699733f6 | 3661 | free (contents); |
| 468392fb AM |
3662 | |
| 3663 | if (glink != NULL && relplt != NULL) | |
| 3664 | { | |
| 3665 | if (resolv_vma) | |
| 3666 | { | |
| 3667 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3668 | memset (s, 0, sizeof *s); |
| 468392fb | 3669 | s->the_bfd = abfd; |
| 6ba2a415 | 3670 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3671 | s->section = glink; |
| 3672 | s->value = resolv_vma - glink->vma; | |
| 3673 | s->name = names; | |
| 3674 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3675 | names += sizeof ("__glink_PLTresolve"); | |
| 3676 | s++; | |
| 3677 | count++; | |
| 3678 | } | |
| 3679 | ||
| 3680 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3681 | stub rather than on the glink branch table entry. The | |
| 3682 | objdump disassembler would then use a sensible symbol | |
| 3683 | name on plt calls. The difficulty in doing so is | |
| 3684 | a) finding the stubs, and, | |
| 3685 | b) matching stubs against plt entries, and, | |
| 3686 | c) there can be multiple stubs for a given plt entry. | |
| 3687 | ||
| 3688 | Solving (a) could be done by code scanning, but older | |
| 3689 | ppc64 binaries used different stubs to current code. | |
| 3690 | (b) is the tricky one since you need to known the toc | |
| 3691 | pointer for at least one function that uses a pic stub to | |
| 3692 | be able to calculate the plt address referenced. | |
| 3693 | (c) means gdb would need to set multiple breakpoints (or | |
| 3694 | find the glink branch itself) when setting breakpoints | |
| 3695 | for pending shared library loads. */ | |
| 3696 | p = relplt->relocation; | |
| 3697 | for (i = 0; i < plt_count; i++, p++) | |
| 3698 | { | |
| 3699 | size_t len; | |
| 3700 | ||
| 3701 | *s = **p->sym_ptr_ptr; | |
| 3702 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3703 | we are defining a symbol, ensure one of them is set. */ | |
| 3704 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3705 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3706 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3707 | s->section = glink; |
| 3708 | s->value = glink_vma - glink->vma; | |
| 3709 | s->name = names; | |
| 3710 | s->udata.p = NULL; | |
| 3711 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3712 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3713 | names += len; | |
| e054468f AM |
3714 | if (p->addend != 0) |
| 3715 | { | |
| 3716 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3717 | names += sizeof ("+0x") - 1; | |
| 3718 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3719 | names += strlen (names); | |
| 3720 | } | |
| 468392fb AM |
3721 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3722 | names += sizeof ("@plt"); | |
| 3723 | s++; | |
| b9e5796b AM |
3724 | if (abi < 2) |
| 3725 | { | |
| 3726 | glink_vma += 8; | |
| 3727 | if (i >= 0x8000) | |
| 3728 | glink_vma += 4; | |
| 3729 | } | |
| 3730 | else | |
| 468392fb AM |
3731 | glink_vma += 4; |
| 3732 | } | |
| 3733 | count += plt_count; | |
| 3734 | } | |
| 90e3cdf2 JJ |
3735 | } |
| 3736 | ||
| c9727e01 | 3737 | done: |
| a7535cf3 | 3738 | free (syms); |
| 90e3cdf2 JJ |
3739 | return count; |
| 3740 | } | |
| 5bd4f169 | 3741 | \f |
| 65f38f15 AM |
3742 | /* The following functions are specific to the ELF linker, while |
| 3743 | functions above are used generally. Those named ppc64_elf_* are | |
| 3744 | called by the main ELF linker code. They appear in this file more | |
| 3745 | or less in the order in which they are called. eg. | |
| 3746 | ppc64_elf_check_relocs is called early in the link process, | |
| 3747 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3748 | called. |
| 3749 | ||
| 3750 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3751 | functions have both a function code symbol and a function descriptor | |
| 3752 | symbol. A call to foo in a relocatable object file looks like: | |
| 3753 | ||
| 3754 | . .text | |
| 3755 | . x: | |
| 3756 | . bl .foo | |
| 3757 | . nop | |
| 3758 | ||
| 3759 | The function definition in another object file might be: | |
| 3760 | ||
| 3761 | . .section .opd | |
| 3762 | . foo: .quad .foo | |
| 3763 | . .quad .TOC.@tocbase | |
| 3764 | . .quad 0 | |
| 3765 | . | |
| 3766 | . .text | |
| 3767 | . .foo: blr | |
| 3768 | ||
| 3769 | When the linker resolves the call during a static link, the branch | |
| 3770 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3771 | If the function definition is in a shared library, things are a little | |
| 3772 | different: The call goes via a plt call stub, the opd information gets | |
| 3773 | copied to the plt, and the linker patches the nop. | |
| 3774 | ||
| 3775 | . x: | |
| 3776 | . bl .foo_stub | |
| 3777 | . ld 2,40(1) | |
| 3778 | . | |
| 3779 | . | |
| 3780 | . .foo_stub: | |
| 71a39c98 AM |
3781 | . std 2,40(1) # in practice, the call stub |
| 3782 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3783 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3784 | . ld 12,0(11) | |
| 3785 | . ld 2,8(11) | |
| 3786 | . mtctr 12 | |
| 3787 | . ld 11,16(11) | |
| e86ce104 AM |
3788 | . bctr |
| 3789 | . | |
| 3790 | . .section .plt | |
| 3791 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3792 | ||
| 3793 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3794 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3795 | copying. | |
| 3796 | ||
| 3797 | What are the difficulties here? Well, firstly, the relocations | |
| 3798 | examined by the linker in check_relocs are against the function code | |
| 3799 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3800 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3801 | to carefully copy dynamic link information from one symbol to the other. | |
| 3802 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3803 | symbol as is normal for most other backends. We need foo dynamic | |
| 3804 | instead, at least for an application final link. However, when | |
| 3805 | creating a shared library containing foo, we need to have both symbols | |
| 3806 | dynamic so that references to .foo are satisfied during the early | |
| 3807 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3808 | definition from some other object, eg. a static library. |
| 3809 | ||
| 3810 | Update: As of August 2004, we support a new convention. Function | |
| 3811 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3812 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3813 | |
| 7c8bbca5 AM |
3814 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3815 | function selects those that must be copied when linking a shared | |
| 3816 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3817 | |
| 1d483afe AM |
3818 | static int |
| 3819 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3820 | enum elf_ppc64_reloc_type r_type) | |
| 3821 | { | |
| 3822 | switch (r_type) | |
| 3823 | { | |
| 3824 | default: | |
| 7c8bbca5 AM |
3825 | /* Only relative relocs can be resolved when the object load |
| 3826 | address isn't fixed. DTPREL64 is excluded because the | |
| 3827 | dynamic linker needs to differentiate global dynamic from | |
| 3828 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3829 | return 1; |
| 3830 | ||
| 3831 | case R_PPC64_REL32: | |
| 3832 | case R_PPC64_REL64: | |
| 3833 | case R_PPC64_REL30: | |
| 3834 | return 0; | |
| 3835 | ||
| 3836 | case R_PPC64_TPREL16: | |
| 3837 | case R_PPC64_TPREL16_LO: | |
| 3838 | case R_PPC64_TPREL16_HI: | |
| 3839 | case R_PPC64_TPREL16_HA: | |
| 3840 | case R_PPC64_TPREL16_DS: | |
| 3841 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3842 | case R_PPC64_TPREL16_HIGH: |
| 3843 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3844 | case R_PPC64_TPREL16_HIGHER: |
| 3845 | case R_PPC64_TPREL16_HIGHERA: | |
| 3846 | case R_PPC64_TPREL16_HIGHEST: | |
| 3847 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3848 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3849 | /* These relocations are relative but in a shared library the |
| 3850 | linker doesn't know the thread pointer base. */ | |
| 3851 | return bfd_link_dll (info); | |
| 1d483afe AM |
3852 | } |
| 3853 | } | |
| 65f38f15 | 3854 | |
| f4656909 AM |
3855 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3856 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3857 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3858 | shared lib. With code that gcc generates, it's vital that this be |
| 3859 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3860 | the address of a function descriptor, which resides in the .opd | |
| 3861 | section. gcc uses the descriptor directly rather than going via the | |
| 3862 | GOT as some other ABI's do, which means that initialized function | |
| 3863 | pointers must reference the descriptor. Thus, a function pointer | |
| 3864 | initialized to the address of a function in a shared library will | |
| 3865 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3866 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3867 | presents a problem as a plt entry for that function is also |
| 3868 | initialized from the function descriptor symbol and the copy reloc | |
| 3869 | may not be initialized first. */ | |
| a23b6845 | 3870 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3871 | |
| 721956f4 | 3872 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3873 | string. */ |
| 3874 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3875 | |
| 3876 | /* Linker stubs. | |
| 3877 | ppc_stub_long_branch: | |
| 3878 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3879 | destination, but a 24 bit branch in a stub section will reach. | |
| 3880 | . b dest | |
| 3881 | ||
| 3882 | ppc_stub_plt_branch: | |
| 3883 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3884 | reach its destination. | |
| 71a39c98 AM |
3885 | . addis %r11,%r2,xxx@toc@ha |
| 3886 | . ld %r12,xxx@toc@l(%r11) | |
| 3887 | . mtctr %r12 | |
| 721956f4 AM |
3888 | . bctr |
| 3889 | ||
| 3890 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3891 | Used to call a function in a shared library. If it so happens that |
| 3892 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3893 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3894 | . std %r2,40(%r1) |
| 71a39c98 AM |
3895 | . addis %r11,%r2,xxx@toc@ha |
| 3896 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3897 | . mtctr %r12 | |
| 3898 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3899 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3900 | . bctr |
| ad8e1ba5 AM |
3901 | |
| 3902 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3903 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3904 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3905 | . std %r2,40(%r1) | |
| 3906 | . addis %r2,%r2,off@ha | |
| 3907 | . addi %r2,%r2,off@l | |
| 3908 | . b dest | |
| 3909 | ||
| 3910 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3911 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3912 | . addis %r11,%r2,xxx@toc@ha |
| 3913 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3914 | . addis %r2,%r2,off@ha |
| 3915 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3916 | . mtctr %r12 |
| ad8e1ba5 | 3917 | . bctr |
| ac2df442 AM |
3918 | |
| 3919 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3920 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3921 | */ |
| 3922 | ||
| 3923 | enum ppc_stub_type { | |
| 3924 | ppc_stub_none, | |
| 3925 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3926 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3927 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3928 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3929 | ppc_stub_plt_call, |
| 7341d5e2 | 3930 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3931 | ppc_stub_global_entry, |
| 3932 | ppc_stub_save_res | |
| 721956f4 AM |
3933 | }; |
| 3934 | ||
| 6f20ed8a AM |
3935 | /* Information on stub grouping. */ |
| 3936 | struct map_stub | |
| 3937 | { | |
| 3938 | /* The stub section. */ | |
| 3939 | asection *stub_sec; | |
| 3940 | /* This is the section to which stubs in the group will be attached. */ | |
| 3941 | asection *link_sec; | |
| a4b6fadd AM |
3942 | /* Next group. */ |
| 3943 | struct map_stub *next; | |
| 3944 | /* Whether to emit a copy of register save/restore functions in this | |
| 3945 | group. */ | |
| 3946 | int needs_save_res; | |
| d4aaa2a0 AM |
3947 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 3948 | or -1u if no such stub with bctrl exists. */ | |
| 3949 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
3950 | }; |
| 3951 | ||
| 721956f4 AM |
3952 | struct ppc_stub_hash_entry { |
| 3953 | ||
| 3954 | /* Base hash table entry structure. */ | |
| 3955 | struct bfd_hash_entry root; | |
| 3956 | ||
| ad8e1ba5 AM |
3957 | enum ppc_stub_type stub_type; |
| 3958 | ||
| 6f20ed8a AM |
3959 | /* Group information. */ |
| 3960 | struct map_stub *group; | |
| 721956f4 AM |
3961 | |
| 3962 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3963 | bfd_vma stub_offset; | |
| 3964 | ||
| 3965 | /* Given the symbol's value and its section we can determine its final | |
| 3966 | value when building the stubs (so the stub knows where to jump. */ | |
| 3967 | bfd_vma target_value; | |
| 3968 | asection *target_section; | |
| 3969 | ||
| 721956f4 AM |
3970 | /* The symbol table entry, if any, that this was derived from. */ |
| 3971 | struct ppc_link_hash_entry *h; | |
| e054468f | 3972 | struct plt_entry *plt_ent; |
| 721956f4 | 3973 | |
| 6911b7dc AM |
3974 | /* Symbol st_other. */ |
| 3975 | unsigned char other; | |
| 721956f4 AM |
3976 | }; |
| 3977 | ||
| 3978 | struct ppc_branch_hash_entry { | |
| 3979 | ||
| 3980 | /* Base hash table entry structure. */ | |
| 3981 | struct bfd_hash_entry root; | |
| 3982 | ||
| c456f082 | 3983 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3984 | unsigned int offset; |
| 3985 | ||
| 3986 | /* Generation marker. */ | |
| 3987 | unsigned int iter; | |
| 3988 | }; | |
| 65f38f15 | 3989 | |
| 19e08130 AM |
3990 | /* Used to track dynamic relocations for local symbols. */ |
| 3991 | struct ppc_dyn_relocs | |
| 3992 | { | |
| 3993 | struct ppc_dyn_relocs *next; | |
| 3994 | ||
| 3995 | /* The input section of the reloc. */ | |
| 3996 | asection *sec; | |
| 3997 | ||
| 3998 | /* Total number of relocs copied for the input section. */ | |
| 3999 | unsigned int count : 31; | |
| 4000 | ||
| 4001 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 4002 | unsigned int ifunc : 1; | |
| 4003 | }; | |
| 4004 | ||
| 65f38f15 AM |
4005 | struct ppc_link_hash_entry |
| 4006 | { | |
| 4007 | struct elf_link_hash_entry elf; | |
| 4008 | ||
| b3fac117 AM |
4009 | union { |
| 4010 | /* A pointer to the most recently used stub hash entry against this | |
| 4011 | symbol. */ | |
| 4012 | struct ppc_stub_hash_entry *stub_cache; | |
| 4013 | ||
| 4014 | /* A pointer to the next symbol starting with a '.' */ | |
| 4015 | struct ppc_link_hash_entry *next_dot_sym; | |
| 4016 | } u; | |
| 721956f4 | 4017 | |
| 65f38f15 | 4018 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4019 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4020 | |
| 721956f4 | 4021 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4022 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4023 | |
| e86ce104 AM |
4024 | /* Flag function code and descriptor symbols. */ |
| 4025 | unsigned int is_func:1; | |
| 4026 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4027 | unsigned int fake:1; |
| 411e1bfb | 4028 | |
| c5614fa4 AM |
4029 | /* Whether global opd/toc sym has been adjusted or not. |
| 4030 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4031 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4032 | unsigned int adjust_done:1; |
| 4033 | ||
| a4b6fadd AM |
4034 | /* Set if this is an out-of-line register save/restore function, |
| 4035 | with non-standard calling convention. */ | |
| 4036 | unsigned int save_res:1; | |
| 4037 | ||
| 8b5f1ed8 AM |
4038 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4039 | even when the duplicate symbol does not provide a definition. */ | |
| 4040 | unsigned int non_zero_localentry:1; | |
| 4041 | ||
| 411e1bfb | 4042 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
4043 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 4044 | corresponding relocs are encountered during check_relocs. | |
| 4045 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 4046 | indicate the corresponding GOT entry type is not needed. | |
| 4047 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 4048 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 4049 | just for convenience in distinguishing the two cases. */ | |
| 4050 | #define TLS_GD 1 /* GD reloc. */ | |
| 4051 | #define TLS_LD 2 /* LD reloc. */ | |
| 4052 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 4053 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4054 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4055 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4056 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4057 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4058 | unsigned char tls_mask; |
| 65f38f15 AM |
4059 | }; |
| 4060 | ||
| 4061 | /* ppc64 ELF linker hash table. */ | |
| 4062 | ||
| 4063 | struct ppc_link_hash_table | |
| 4064 | { | |
| 4065 | struct elf_link_hash_table elf; | |
| 4066 | ||
| 721956f4 AM |
4067 | /* The stub hash table. */ |
| 4068 | struct bfd_hash_table stub_hash_table; | |
| 4069 | ||
| 4070 | /* Another hash table for plt_branch stubs. */ | |
| 4071 | struct bfd_hash_table branch_hash_table; | |
| 4072 | ||
| 3b421ab3 AM |
4073 | /* Hash table for function prologue tocsave. */ |
| 4074 | htab_t tocsave_htab; | |
| 4075 | ||
| e7d1c40c AM |
4076 | /* Various options and other info passed from the linker. */ |
| 4077 | struct ppc64_elf_params *params; | |
| 721956f4 | 4078 | |
| 6f20ed8a AM |
4079 | /* The size of sec_info below. */ |
| 4080 | unsigned int sec_info_arr_size; | |
| 4081 | ||
| 4082 | /* Per-section array of extra section info. Done this way rather | |
| 4083 | than as part of ppc64_elf_section_data so we have the info for | |
| 4084 | non-ppc64 sections. */ | |
| 4085 | struct | |
| 4086 | { | |
| 4087 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4088 | bfd_vma toc_off; |
| 6f20ed8a AM |
4089 | |
| 4090 | union | |
| 4091 | { | |
| 4092 | /* The section group that this section belongs to. */ | |
| 4093 | struct map_stub *group; | |
| 4094 | /* A temp section list pointer. */ | |
| 4095 | asection *list; | |
| 4096 | } u; | |
| 4097 | } *sec_info; | |
| 721956f4 | 4098 | |
| a4b6fadd AM |
4099 | /* Linked list of groups. */ |
| 4100 | struct map_stub *group; | |
| 4101 | ||
| ad8e1ba5 AM |
4102 | /* Temp used when calculating TOC pointers. */ |
| 4103 | bfd_vma toc_curr; | |
| bf102f86 AM |
4104 | bfd *toc_bfd; |
| 4105 | asection *toc_first_sec; | |
| ad8e1ba5 | 4106 | |
| b3fac117 AM |
4107 | /* Used when adding symbols. */ |
| 4108 | struct ppc_link_hash_entry *dot_syms; | |
| 4109 | ||
| 33e44f2e | 4110 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4111 | asection *glink; |
| 9e390558 | 4112 | asection *global_entry; |
| 82bd7b59 | 4113 | asection *sfpr; |
| 4ce794b7 AM |
4114 | asection *brlt; |
| 4115 | asection *relbrlt; | |
| 58d180e8 | 4116 | asection *glink_eh_frame; |
| ec338859 | 4117 | |
| 8387904d AM |
4118 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4119 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4120 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4121 | |
| 927be08e AM |
4122 | /* The size of reliplt used by got entry relocs. */ |
| 4123 | bfd_size_type got_reli_size; | |
| 4124 | ||
| 9b5ecbd0 | 4125 | /* Statistics. */ |
| 7341d5e2 | 4126 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4127 | |
| ee75fd95 AM |
4128 | /* Number of stubs against global syms. */ |
| 4129 | unsigned long stub_globals; | |
| 4130 | ||
| ee67d69a AM |
4131 | /* Set if we're linking code with function descriptors. */ |
| 4132 | unsigned int opd_abi:1; | |
| 4133 | ||
| 4c52953f | 4134 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4135 | unsigned int do_multi_toc:1; |
| 4c52953f | 4136 | unsigned int multi_toc_needed:1; |
| 927be08e | 4137 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4138 | unsigned int do_toc_opt:1; |
| 4c52953f | 4139 | |
| 9a23f96e AM |
4140 | /* Set if tls optimization is enabled. */ |
| 4141 | unsigned int do_tls_opt:1; | |
| 4142 | ||
| 5d1634d7 | 4143 | /* Set on error. */ |
| 99877b66 | 4144 | unsigned int stub_error:1; |
| 721956f4 | 4145 | |
| 8c5b4e52 AM |
4146 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4147 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4148 | |
| 82e66161 AM |
4149 | /* Whether there exist local gnu indirect function resolvers, |
| 4150 | referenced by dynamic relocations. */ | |
| 4151 | unsigned int local_ifunc_resolver:1; | |
| 4152 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4153 | ||
| f378ab09 AM |
4154 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4155 | unsigned int has_plt_localentry0:1; | |
| 4156 | ||
| 721956f4 AM |
4157 | /* Incremented every time we size stubs. */ |
| 4158 | unsigned int stub_iteration; | |
| 5d1634d7 | 4159 | |
| 87d72d41 AM |
4160 | /* Small local sym cache. */ |
| 4161 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4162 | }; |
| 4163 | ||
| 4c52953f AM |
4164 | /* Rename some of the generic section flags to better document how they |
| 4165 | are used here. */ | |
| b0dddeec AM |
4166 | |
| 4167 | /* Nonzero if this section has TLS related relocations. */ | |
| 4168 | #define has_tls_reloc sec_flg0 | |
| 4169 | ||
| 4170 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4171 | #define has_tls_get_addr_call sec_flg1 | |
| 4172 | ||
| 4173 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4174 | #define has_toc_reloc sec_flg2 | |
| 4175 | ||
| 4176 | /* Nonzero if this section has a call to another section that uses | |
| 4177 | the toc or got. */ | |
| d77c8a4b | 4178 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4179 | |
| 4180 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4181 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4182 | #define call_check_done sec_flg5 |
| 4c52953f | 4183 | |
| 65f38f15 AM |
4184 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4185 | ||
| 4186 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4187 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4188 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4189 | |
| 721956f4 AM |
4190 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4191 | ((struct ppc_stub_hash_entry *) \ | |
| 4192 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4193 | ||
| 4194 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4195 | ((struct ppc_branch_hash_entry *) \ | |
| 4196 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4197 | ||
| 4198 | /* Create an entry in the stub hash table. */ | |
| 4199 | ||
| 4200 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4201 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4202 | struct bfd_hash_table *table, | |
| 4203 | const char *string) | |
| 721956f4 AM |
4204 | { |
| 4205 | /* Allocate the structure if it has not already been allocated by a | |
| 4206 | subclass. */ | |
| 4207 | if (entry == NULL) | |
| 4208 | { | |
| 4209 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4210 | if (entry == NULL) | |
| 4211 | return entry; | |
| 4212 | } | |
| 4213 | ||
| 4214 | /* Call the allocation method of the superclass. */ | |
| 4215 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4216 | if (entry != NULL) | |
| 4217 | { | |
| 4218 | struct ppc_stub_hash_entry *eh; | |
| 4219 | ||
| 4220 | /* Initialize the local fields. */ | |
| 4221 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4222 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4223 | eh->group = NULL; |
| 721956f4 AM |
4224 | eh->stub_offset = 0; |
| 4225 | eh->target_value = 0; | |
| 4226 | eh->target_section = NULL; | |
| 721956f4 | 4227 | eh->h = NULL; |
| 6911b7dc | 4228 | eh->plt_ent = NULL; |
| 6911b7dc | 4229 | eh->other = 0; |
| 721956f4 AM |
4230 | } |
| 4231 | ||
| 4232 | return entry; | |
| 4233 | } | |
| 4234 | ||
| 4235 | /* Create an entry in the branch hash table. */ | |
| 4236 | ||
| 4237 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4238 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4239 | struct bfd_hash_table *table, | |
| 4240 | const char *string) | |
| 721956f4 AM |
4241 | { |
| 4242 | /* Allocate the structure if it has not already been allocated by a | |
| 4243 | subclass. */ | |
| 4244 | if (entry == NULL) | |
| 4245 | { | |
| 4246 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4247 | if (entry == NULL) | |
| 4248 | return entry; | |
| 4249 | } | |
| 4250 | ||
| 4251 | /* Call the allocation method of the superclass. */ | |
| 4252 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4253 | if (entry != NULL) | |
| 4254 | { | |
| 4255 | struct ppc_branch_hash_entry *eh; | |
| 4256 | ||
| 4257 | /* Initialize the local fields. */ | |
| 4258 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4259 | eh->offset = 0; | |
| 4260 | eh->iter = 0; | |
| 4261 | } | |
| 4262 | ||
| 4263 | return entry; | |
| 4264 | } | |
| 4265 | ||
| 65f38f15 AM |
4266 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4267 | ||
| 4268 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4269 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4270 | struct bfd_hash_table *table, | |
| 4271 | const char *string) | |
| 65f38f15 AM |
4272 | { |
| 4273 | /* Allocate the structure if it has not already been allocated by a | |
| 4274 | subclass. */ | |
| 4275 | if (entry == NULL) | |
| 4276 | { | |
| 4277 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4278 | if (entry == NULL) | |
| 4279 | return entry; | |
| 4280 | } | |
| 4281 | ||
| 4282 | /* Call the allocation method of the superclass. */ | |
| 4283 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4284 | if (entry != NULL) | |
| 4285 | { | |
| 4286 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4287 | ||
| b3fac117 | 4288 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4289 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4290 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4291 | ||
| 4292 | /* When making function calls, old ABI code references function entry | |
| 4293 | points (dot symbols), while new ABI code references the function | |
| 4294 | descriptor symbol. We need to make any combination of reference and | |
| 4295 | definition work together, without breaking archive linking. | |
| 4296 | ||
| 4297 | For a defined function "foo" and an undefined call to "bar": | |
| 4298 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4299 | "bar" too). | |
| 4300 | A new object defines "foo" and references "bar". | |
| 4301 | ||
| 4302 | A new object thus has no problem with its undefined symbols being | |
| 4303 | satisfied by definitions in an old object. On the other hand, the | |
| 4304 | old object won't have ".bar" satisfied by a new object. | |
| 4305 | ||
| 4306 | Keep a list of newly added dot-symbols. */ | |
| 4307 | ||
| 4308 | if (string[0] == '.') | |
| 4309 | { | |
| 4310 | struct ppc_link_hash_table *htab; | |
| 4311 | ||
| 4312 | htab = (struct ppc_link_hash_table *) table; | |
| 4313 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4314 | htab->dot_syms = eh; | |
| 4315 | } | |
| 65f38f15 AM |
4316 | } |
| 4317 | ||
| 4318 | return entry; | |
| 4319 | } | |
| 4320 | ||
| 3b421ab3 AM |
4321 | struct tocsave_entry { |
| 4322 | asection *sec; | |
| 4323 | bfd_vma offset; | |
| 4324 | }; | |
| 4325 | ||
| 4326 | static hashval_t | |
| 4327 | tocsave_htab_hash (const void *p) | |
| 4328 | { | |
| 4329 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4330 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4331 | } |
| 4332 | ||
| 4333 | static int | |
| 4334 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4335 | { | |
| 4336 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4337 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4338 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4339 | } | |
| 4340 | ||
| 68faa637 AM |
4341 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4342 | ||
| 4343 | static void | |
| d495ab0d | 4344 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4345 | { |
| d495ab0d | 4346 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4347 | |
| d495ab0d | 4348 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4349 | if (htab->tocsave_htab) |
| 4350 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4351 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4352 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4353 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4354 | } |
| 4355 | ||
| 65f38f15 AM |
4356 | /* Create a ppc64 ELF linker hash table. */ |
| 4357 | ||
| 4358 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4359 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4360 | { |
| 4361 | struct ppc_link_hash_table *htab; | |
| 4362 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4363 | ||
| 4ce794b7 | 4364 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4365 | if (htab == NULL) |
| 4366 | return NULL; | |
| 4367 | ||
| 66eb6687 | 4368 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4369 | sizeof (struct ppc_link_hash_entry), |
| 4370 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4371 | { |
| e2d34d7d | 4372 | free (htab); |
| 65f38f15 AM |
4373 | return NULL; |
| 4374 | } | |
| 4375 | ||
| 721956f4 | 4376 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4377 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4378 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4379 | { |
| d495ab0d | 4380 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4381 | return NULL; |
| 4382 | } | |
| 721956f4 AM |
4383 | |
| 4384 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4385 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4386 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4387 | { |
| 4388 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4389 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4390 | return NULL; |
| 4391 | } | |
| 721956f4 | 4392 | |
| 3b421ab3 AM |
4393 | htab->tocsave_htab = htab_try_create (1024, |
| 4394 | tocsave_htab_hash, | |
| 4395 | tocsave_htab_eq, | |
| 4396 | NULL); | |
| 4397 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4398 | { |
| d495ab0d | 4399 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4400 | return NULL; |
| 4401 | } | |
| d495ab0d | 4402 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4403 | |
| 3254fd24 AM |
4404 | /* Initializing two fields of the union is just cosmetic. We really |
| 4405 | only care about glist, but when compiled on a 32-bit host the | |
| 4406 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4407 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4408 | htab->elf.init_got_refcount.refcount = 0; |
| 4409 | htab->elf.init_got_refcount.glist = NULL; | |
| 4410 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4411 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4412 | htab->elf.init_got_offset.offset = 0; | |
| 4413 | htab->elf.init_got_offset.glist = NULL; | |
| 4414 | htab->elf.init_plt_offset.offset = 0; | |
| 4415 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4416 | |
| 65f38f15 AM |
4417 | return &htab->elf.root; |
| 4418 | } | |
| 4419 | ||
| bfeb4a28 AM |
4420 | /* Create sections for linker generated code. */ |
| 4421 | ||
| 4422 | static bfd_boolean | |
| 4423 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4424 | { | |
| 4425 | struct ppc_link_hash_table *htab; | |
| 4426 | flagword flags; | |
| 4427 | ||
| 4428 | htab = ppc_hash_table (info); | |
| 4429 | ||
| bfeb4a28 AM |
4430 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4431 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4432 | if (htab->params->save_restore_funcs) |
| 4433 | { | |
| 4434 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4435 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4436 | flags); | |
| 4437 | if (htab->sfpr == NULL | |
| 4438 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4439 | return FALSE; | |
| 4440 | } | |
| 4441 | ||
| 4442 | if (bfd_link_relocatable (info)) | |
| 4443 | return TRUE; | |
| bfeb4a28 AM |
4444 | |
| 4445 | /* Create .glink for lazy dynamic linking support. */ | |
| 4446 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4447 | flags); | |
| 4448 | if (htab->glink == NULL | |
| 4449 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4450 | return FALSE; | |
| 4451 | ||
| 9e390558 AM |
4452 | /* The part of .glink used by global entry stubs, separate so that |
| 4453 | it can be aligned appropriately without affecting htab->glink. */ | |
| 4454 | htab->global_entry = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4455 | flags); | |
| 4456 | if (htab->global_entry == NULL | |
| 4457 | || ! bfd_set_section_alignment (dynobj, htab->global_entry, 2)) | |
| 4458 | return FALSE; | |
| 4459 | ||
| bfeb4a28 AM |
4460 | if (!info->no_ld_generated_unwind_info) |
| 4461 | { | |
| 4462 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4463 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4464 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4465 | ".eh_frame", | |
| 4466 | flags); | |
| 4467 | if (htab->glink_eh_frame == NULL | |
| 4468 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4469 | return FALSE; | |
| 4470 | } | |
| 4471 | ||
| 4472 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4473 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4474 | if (htab->elf.iplt == NULL | |
| 4475 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4476 | return FALSE; |
| 4477 | ||
| 4478 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4479 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4480 | htab->elf.irelplt |
| 4481 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4482 | if (htab->elf.irelplt == NULL | |
| 4483 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4484 | return FALSE; |
| 4485 | ||
| 4486 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4487 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4488 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4489 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4490 | flags); | |
| 4491 | if (htab->brlt == NULL | |
| 4492 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4493 | return FALSE; | |
| 4494 | ||
| 0e1862bb | 4495 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4496 | return TRUE; |
| 4497 | ||
| 4498 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4499 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4500 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4501 | ".rela.branch_lt", | |
| 4502 | flags); | |
| 4503 | if (htab->relbrlt == NULL | |
| 4504 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4505 | return FALSE; | |
| 4506 | ||
| 4507 | return TRUE; | |
| 4508 | } | |
| 4509 | ||
| e717da7e AM |
4510 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4511 | ||
| bfeb4a28 | 4512 | bfd_boolean |
| e7d1c40c AM |
4513 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4514 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4515 | { |
| 4516 | struct ppc_link_hash_table *htab; | |
| 4517 | ||
| e7d1c40c | 4518 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4519 | |
| 4520 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4521 | linker created stub bfd. This ensures that the GOT header is at | |
| 4522 | the start of the output TOC section. */ | |
| 4523 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4524 | htab->elf.dynobj = params->stub_bfd; |
| 4525 | htab->params = params; | |
| bfeb4a28 | 4526 | |
| bfeb4a28 | 4527 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4528 | } |
| 4529 | ||
| 721956f4 AM |
4530 | /* Build a name for an entry in the stub hash table. */ |
| 4531 | ||
| 4532 | static char * | |
| 4ce794b7 AM |
4533 | ppc_stub_name (const asection *input_section, |
| 4534 | const asection *sym_sec, | |
| 4535 | const struct ppc_link_hash_entry *h, | |
| 4536 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4537 | { |
| 4538 | char *stub_name; | |
| bcaa2f82 | 4539 | ssize_t len; |
| 721956f4 AM |
4540 | |
| 4541 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4542 | offsets from a sym as a branch target? In fact, we could | |
| 4543 | probably assume the addend is always zero. */ | |
| 4544 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4545 | ||
| 4546 | if (h) | |
| 4547 | { | |
| 4548 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4549 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4550 | if (stub_name == NULL) |
| 4551 | return stub_name; | |
| 4552 | ||
| bcaa2f82 AM |
4553 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4554 | input_section->id & 0xffffffff, | |
| 4555 | h->elf.root.root.string, | |
| 4556 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4557 | } |
| 4558 | else | |
| 4559 | { | |
| ad8e1ba5 | 4560 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4561 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4562 | if (stub_name == NULL) |
| 4563 | return stub_name; | |
| 4564 | ||
| bcaa2f82 AM |
4565 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4566 | input_section->id & 0xffffffff, | |
| 4567 | sym_sec->id & 0xffffffff, | |
| 4568 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4569 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4570 | } |
| bcaa2f82 | 4571 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4572 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4573 | return stub_name; |
| 4574 | } | |
| 4575 | ||
| 4576 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4577 | creating the stub name takes a bit of time. */ | |
| 4578 | ||
| 4579 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4580 | ppc_get_stub_entry (const asection *input_section, |
| 4581 | const asection *sym_sec, | |
| 039b3fef | 4582 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4583 | const Elf_Internal_Rela *rel, |
| 4584 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4585 | { |
| 4586 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4587 | struct map_stub *group; |
| 721956f4 AM |
4588 | |
| 4589 | /* If this input section is part of a group of sections sharing one | |
| 4590 | stub section, then use the id of the first section in the group. | |
| 4591 | Stub names need to include a section id, as there may well be | |
| 4592 | more than one stub used to reach say, printf, and we need to | |
| 4593 | distinguish between them. */ | |
| 6f20ed8a | 4594 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4595 | if (group == NULL) |
| 4596 | return NULL; | |
| 721956f4 | 4597 | |
| b3fac117 AM |
4598 | if (h != NULL && h->u.stub_cache != NULL |
| 4599 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4600 | && h->u.stub_cache->group == group) |
| 721956f4 | 4601 | { |
| b3fac117 | 4602 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4603 | } |
| 4604 | else | |
| 4605 | { | |
| 4606 | char *stub_name; | |
| 4607 | ||
| 6f20ed8a | 4608 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4609 | if (stub_name == NULL) |
| 4610 | return NULL; | |
| 4611 | ||
| 4612 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4613 | stub_name, FALSE, FALSE); |
| 721956f4 | 4614 | if (h != NULL) |
| b3fac117 | 4615 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4616 | |
| 4617 | free (stub_name); | |
| 4618 | } | |
| 4619 | ||
| 4620 | return stub_entry; | |
| 4621 | } | |
| 4622 | ||
| 4623 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4624 | stub entry are initialised. */ | |
| 4625 | ||
| 4626 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4627 | ppc_add_stub (const char *stub_name, |
| 4628 | asection *section, | |
| 25f53a85 | 4629 | struct bfd_link_info *info) |
| 721956f4 | 4630 | { |
| 25f53a85 | 4631 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4632 | struct map_stub *group; |
| 721956f4 AM |
4633 | asection *link_sec; |
| 4634 | asection *stub_sec; | |
| 4635 | struct ppc_stub_hash_entry *stub_entry; | |
| 4636 | ||
| 6f20ed8a AM |
4637 | group = htab->sec_info[section->id].u.group; |
| 4638 | link_sec = group->link_sec; | |
| 4639 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4640 | if (stub_sec == NULL) |
| 4641 | { | |
| 6f20ed8a AM |
4642 | size_t namelen; |
| 4643 | bfd_size_type len; | |
| 4644 | char *s_name; | |
| 721956f4 | 4645 | |
| 6f20ed8a AM |
4646 | namelen = strlen (link_sec->name); |
| 4647 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4648 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4649 | if (s_name == NULL) | |
| 4650 | return NULL; | |
| 721956f4 | 4651 | |
| 6f20ed8a AM |
4652 | memcpy (s_name, link_sec->name, namelen); |
| 4653 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4654 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4655 | if (stub_sec == NULL) | |
| 4656 | return NULL; | |
| 4657 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4658 | } |
| 4659 | ||
| 4660 | /* Enter this entry into the linker stub hash table. */ | |
| 4661 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4662 | TRUE, FALSE); |
| 721956f4 AM |
4663 | if (stub_entry == NULL) |
| 4664 | { | |
| 695344c0 | 4665 | /* xgettext:c-format */ |
| cf97bcb0 AM |
4666 | _bfd_error_handler (_("%pB: cannot create stub entry %s"), |
| 4667 | section->owner, stub_name); | |
| 721956f4 AM |
4668 | return NULL; |
| 4669 | } | |
| 4670 | ||
| 6f20ed8a | 4671 | stub_entry->group = group; |
| 721956f4 | 4672 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4673 | return stub_entry; |
| 4674 | } | |
| 4675 | ||
| e717da7e AM |
4676 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4677 | not already done. */ | |
| 65f38f15 | 4678 | |
| b34976b6 | 4679 | static bfd_boolean |
| e717da7e | 4680 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4681 | { |
| e717da7e AM |
4682 | asection *got, *relgot; |
| 4683 | flagword flags; | |
| 4684 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4685 | |
| 0c8d6e5c | 4686 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4687 | return FALSE; |
| 4dfe6ac6 NC |
4688 | if (htab == NULL) |
| 4689 | return FALSE; | |
| 0ffa91dd | 4690 | |
| 33e44f2e AM |
4691 | if (!htab->elf.sgot |
| 4692 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4693 | return FALSE; | |
| e717da7e AM |
4694 | |
| 4695 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4696 | | SEC_LINKER_CREATED); | |
| 4697 | ||
| c456f082 | 4698 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4699 | if (!got |
| e717da7e AM |
4700 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4701 | return FALSE; | |
| 65f38f15 | 4702 | |
| c456f082 AM |
4703 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4704 | flags | SEC_READONLY); | |
| e717da7e | 4705 | if (!relgot |
| e717da7e | 4706 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4707 | return FALSE; |
| e717da7e AM |
4708 | |
| 4709 | ppc64_elf_tdata (abfd)->got = got; | |
| 4710 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4711 | return TRUE; |
| 65f38f15 | 4712 | } |
| 5bd4f169 | 4713 | |
| b31867b6 AM |
4714 | /* Follow indirect and warning symbol links. */ |
| 4715 | ||
| 4716 | static inline struct bfd_link_hash_entry * | |
| 4717 | follow_link (struct bfd_link_hash_entry *h) | |
| 4718 | { | |
| 4719 | while (h->type == bfd_link_hash_indirect | |
| 4720 | || h->type == bfd_link_hash_warning) | |
| 4721 | h = h->u.i.link; | |
| 4722 | return h; | |
| 4723 | } | |
| 4724 | ||
| 4725 | static inline struct elf_link_hash_entry * | |
| 4726 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4727 | { | |
| 4728 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4729 | } | |
| 4730 | ||
| 4731 | static inline struct ppc_link_hash_entry * | |
| 4732 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4733 | { | |
| 4734 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4735 | } | |
| 4736 | ||
| 40d16e0b AM |
4737 | /* Merge PLT info on FROM with that on TO. */ |
| 4738 | ||
| 4739 | static void | |
| 4740 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4741 | struct ppc_link_hash_entry *to) | |
| 4742 | { | |
| 4743 | if (from->elf.plt.plist != NULL) | |
| 4744 | { | |
| 4745 | if (to->elf.plt.plist != NULL) | |
| 4746 | { | |
| 4747 | struct plt_entry **entp; | |
| 4748 | struct plt_entry *ent; | |
| 4749 | ||
| 4750 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4751 | { | |
| 4752 | struct plt_entry *dent; | |
| 4753 | ||
| 4754 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4755 | if (dent->addend == ent->addend) | |
| 4756 | { | |
| 4757 | dent->plt.refcount += ent->plt.refcount; | |
| 4758 | *entp = ent->next; | |
| 4759 | break; | |
| 4760 | } | |
| 4761 | if (dent == NULL) | |
| 4762 | entp = &ent->next; | |
| 4763 | } | |
| 4764 | *entp = to->elf.plt.plist; | |
| 4765 | } | |
| 4766 | ||
| 4767 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4768 | from->elf.plt.plist = NULL; | |
| 4769 | } | |
| 4770 | } | |
| 4771 | ||
| 65f38f15 AM |
4772 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4773 | ||
| 4774 | static void | |
| fcfa13d2 AM |
4775 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4776 | struct elf_link_hash_entry *dir, | |
| 4777 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4778 | { |
| 4779 | struct ppc_link_hash_entry *edir, *eind; | |
| 4780 | ||
| 4781 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4782 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4783 | ||
| c79d6685 AM |
4784 | edir->is_func |= eind->is_func; |
| 4785 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4786 | edir->tls_mask |= eind->tls_mask; | |
| 4787 | if (eind->oh != NULL) | |
| 4788 | edir->oh = ppc_follow_link (eind->oh); | |
| 4789 | ||
| 474436e6 | 4790 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4791 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4792 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4793 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4a7e5234 | 4794 | edir->elf.non_got_ref |= eind->elf.non_got_ref; |
| e81830c5 AM |
4795 | edir->elf.needs_plt |= eind->elf.needs_plt; |
| 4796 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4797 | |
| d311bc8b AM |
4798 | /* If we were called to copy over info for a weak sym, don't copy |
| 4799 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4800 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4801 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4802 | tests about a specific symbol, or affect other symbol flags which | |
| ab2477e1 | 4803 | are then tested. */ |
| d311bc8b | 4804 | if (eind->elf.root.type != bfd_link_hash_indirect) |
| ab2477e1 | 4805 | return; |
| d311bc8b | 4806 | |
| 411e1bfb | 4807 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4808 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4809 | { |
| bbd7ec4a AM |
4810 | if (edir->dyn_relocs != NULL) |
| 4811 | { | |
| 6061a67d AM |
4812 | struct elf_dyn_relocs **pp; |
| 4813 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4814 | |
| fcfa13d2 | 4815 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4816 | list. Merge any entries against the same section. */ |
| 4817 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4818 | { | |
| 6061a67d | 4819 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4820 | |
| 4821 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4822 | if (q->sec == p->sec) | |
| 4823 | { | |
| 4824 | q->pc_count += p->pc_count; | |
| 4825 | q->count += p->count; | |
| 4826 | *pp = p->next; | |
| 4827 | break; | |
| 4828 | } | |
| 4829 | if (q == NULL) | |
| 4830 | pp = &p->next; | |
| 4831 | } | |
| 4832 | *pp = edir->dyn_relocs; | |
| 4833 | } | |
| 4834 | ||
| 65f38f15 AM |
4835 | edir->dyn_relocs = eind->dyn_relocs; |
| 4836 | eind->dyn_relocs = NULL; | |
| 4837 | } | |
| 65f38f15 | 4838 | |
| 81848ca0 AM |
4839 | /* Copy over got entries that we may have already seen to the |
| 4840 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4841 | if (eind->elf.got.glist != NULL) |
| 4842 | { | |
| 4843 | if (edir->elf.got.glist != NULL) | |
| 4844 | { | |
| 4845 | struct got_entry **entp; | |
| 4846 | struct got_entry *ent; | |
| 4847 | ||
| 4848 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4849 | { | |
| 4850 | struct got_entry *dent; | |
| 4851 | ||
| 4852 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4853 | if (dent->addend == ent->addend | |
| e717da7e | 4854 | && dent->owner == ent->owner |
| 411e1bfb AM |
4855 | && dent->tls_type == ent->tls_type) |
| 4856 | { | |
| 4857 | dent->got.refcount += ent->got.refcount; | |
| 4858 | *entp = ent->next; | |
| 4859 | break; | |
| 4860 | } | |
| 4861 | if (dent == NULL) | |
| 4862 | entp = &ent->next; | |
| 4863 | } | |
| 4864 | *entp = edir->elf.got.glist; | |
| 4865 | } | |
| 4866 | ||
| 4867 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4868 | eind->elf.got.glist = NULL; | |
| 4869 | } | |
| 4870 | ||
| 4871 | /* And plt entries. */ | |
| 40d16e0b | 4872 | move_plt_plist (eind, edir); |
| 411e1bfb | 4873 | |
| fcfa13d2 | 4874 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4875 | { |
| fcfa13d2 AM |
4876 | if (edir->elf.dynindx != -1) |
| 4877 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4878 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4879 | edir->elf.dynindx = eind->elf.dynindx; |
| 4880 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4881 | eind->elf.dynindx = -1; | |
| 4882 | eind->elf.dynstr_index = 0; | |
| 4883 | } | |
| 411e1bfb AM |
4884 | } |
| 4885 | ||
| 8387904d AM |
4886 | /* Find the function descriptor hash entry from the given function code |
| 4887 | hash entry FH. Link the entries via their OH fields. */ | |
| 4888 | ||
| 4889 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4890 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4891 | { |
| 4892 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4893 | ||
| 4894 | if (fdh == NULL) | |
| 4895 | { | |
| 4896 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4897 | ||
| 4898 | fdh = (struct ppc_link_hash_entry *) | |
| 4899 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4900 | if (fdh == NULL) |
| 4901 | return fdh; | |
| 4902 | ||
| 4903 | fdh->is_func_descriptor = 1; | |
| 4904 | fdh->oh = fh; | |
| 4905 | fh->is_func = 1; | |
| 4906 | fh->oh = fdh; | |
| 8387904d AM |
4907 | } |
| 4908 | ||
| 8c5b4e52 AM |
4909 | fdh = ppc_follow_link (fdh); |
| 4910 | fdh->is_func_descriptor = 1; | |
| 4911 | fdh->oh = fh; | |
| 4912 | return fdh; | |
| 8387904d AM |
4913 | } |
| 4914 | ||
| 8c5b4e52 | 4915 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4916 | |
| 4917 | static struct ppc_link_hash_entry * | |
| 4918 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4919 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4920 | { |
| 8c5b4e52 AM |
4921 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4922 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4923 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4924 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4925 | ? BSF_WEAK | |
| 4926 | : BSF_GLOBAL); | |
| 4927 | ||
| 4928 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4929 | fh->elf.root.root.string + 1, | |
| 4930 | flags, bfd_und_section_ptr, 0, | |
| 4931 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4932 | return NULL; |
| 4933 | ||
| 4934 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4935 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4936 | fdh->fake = 1; |
| 4937 | fdh->is_func_descriptor = 1; | |
| 4938 | fdh->oh = fh; | |
| 4939 | fh->is_func = 1; | |
| 4940 | fh->oh = fdh; | |
| bb700d78 AM |
4941 | return fdh; |
| 4942 | } | |
| 4943 | ||
| 8387904d AM |
4944 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4945 | function type. */ | |
| 555cd476 AM |
4946 | |
| 4947 | static bfd_boolean | |
| c16153ae | 4948 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4949 | struct bfd_link_info *info, |
| 555cd476 | 4950 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4951 | const char **name, |
| 555cd476 AM |
4952 | flagword *flags ATTRIBUTE_UNUSED, |
| 4953 | asection **sec, | |
| b53dfeb2 | 4954 | bfd_vma *value) |
| 555cd476 | 4955 | { |
| a43942db | 4956 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4957 | && (ibfd->flags & DYNAMIC) == 0 |
| 4958 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4959 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4960 | |
| b53dfeb2 | 4961 | if (*sec != NULL |
| f1885d1e | 4962 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4963 | { |
| 4964 | asection *code_sec; | |
| 4965 | ||
| 4966 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4967 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4968 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4969 | ||
| 4970 | /* If the symbol is a function defined in .opd, and the function | |
| 4971 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4972 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4973 | && (*sec)->reloc_count != 0 |
| 4974 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4975 | FALSE) != (bfd_vma) -1 | |
| 4976 | && discarded_section (code_sec)) | |
| 4977 | { | |
| 4978 | *sec = bfd_und_section_ptr; | |
| 4979 | isym->st_shndx = SHN_UNDEF; | |
| 4980 | } | |
| 4981 | } | |
| dbd1e97e AM |
4982 | else if (*sec != NULL |
| 4983 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4984 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4985 | { | |
| 4986 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4987 | if (htab != NULL) | |
| 4988 | htab->params->object_in_toc = 1; | |
| 4989 | } | |
| 433817dd | 4990 | |
| 6911b7dc AM |
4991 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4992 | { | |
| 4993 | if (abiversion (ibfd) == 0) | |
| 4994 | set_abiversion (ibfd, 2); | |
| 4995 | else if (abiversion (ibfd) == 1) | |
| 4996 | { | |
| cf97bcb0 AM |
4997 | _bfd_error_handler (_("symbol '%s' has invalid st_other" |
| 4998 | " for ABI version 1"), *name); | |
| 6911b7dc AM |
4999 | bfd_set_error (bfd_error_bad_value); |
| 5000 | return FALSE; | |
| 5001 | } | |
| 5002 | } | |
| 5003 | ||
| 555cd476 AM |
5004 | return TRUE; |
| 5005 | } | |
| 5006 | ||
| 6911b7dc AM |
5007 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 5008 | ||
| 5009 | static void | |
| 5010 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5011 | const Elf_Internal_Sym *isym, | |
| 5012 | bfd_boolean definition, | |
| 5013 | bfd_boolean dynamic) | |
| 5014 | { | |
| f378ab09 | 5015 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5016 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5017 | | ELF_ST_VISIBILITY (h->other)); | |
| 5018 | } | |
| 5019 | ||
| 8c5b4e52 AM |
5020 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5021 | we now have a real symbol. */ | |
| 5022 | ||
| 5023 | static bfd_boolean | |
| 5024 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5025 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5026 | asection **psec ATTRIBUTE_UNUSED, |
| 5027 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5028 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5029 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5030 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5031 | { | |
| 5032 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5033 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5034 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5035 | return TRUE; |
| 5036 | } | |
| 5037 | ||
| 8387904d | 5038 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5039 | inclusion of a new ABI object archive that defines "bar". |
| 5040 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5041 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5042 | |
| 5043 | static struct elf_link_hash_entry * | |
| 5044 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5045 | struct bfd_link_info *info, | |
| 5046 | const char *name) | |
| 5047 | { | |
| 5048 | struct elf_link_hash_entry *h; | |
| 5049 | char *dot_name; | |
| 5050 | size_t len; | |
| 5051 | ||
| 5052 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5053 | if (h != NULL |
| 5054 | /* Don't return this sym if it is a fake function descriptor | |
| 5055 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5056 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5057 | return h; |
| 5058 | ||
| 5059 | if (name[0] == '.') | |
| 5060 | return h; | |
| 5061 | ||
| 5062 | len = strlen (name); | |
| 5063 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5064 | if (dot_name == NULL) | |
| e99955cd | 5065 | return (struct elf_link_hash_entry *) -1; |
| 8387904d AM |
5066 | dot_name[0] = '.'; |
| 5067 | memcpy (dot_name + 1, name, len + 1); | |
| 5068 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5069 | bfd_release (abfd, dot_name); | |
| 5070 | return h; | |
| 5071 | } | |
| 5072 | ||
| 5073 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5074 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5075 | are made weak. This stops later archive searches from including an | |
| 5076 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5077 | prevents the linker complaining about undefined symbols. |
| 5078 | We also check and correct mismatched symbol visibility here. The | |
| 5079 | most restrictive visibility of the function descriptor and the | |
| 5080 | function entry symbol is used. */ | |
| 8387904d AM |
5081 | |
| 5082 | static bfd_boolean | |
| b3fac117 | 5083 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5084 | { |
| 8387904d AM |
5085 | struct ppc_link_hash_table *htab; |
| 5086 | struct ppc_link_hash_entry *fdh; | |
| 5087 | ||
| b3fac117 AM |
5088 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5089 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5090 | |
| 8400d40d AM |
5091 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5092 | return TRUE; | |
| 5093 | ||
| b3fac117 AM |
5094 | if (eh->elf.root.root.string[0] != '.') |
| 5095 | abort (); | |
| 8387904d | 5096 | |
| b3fac117 | 5097 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5098 | if (htab == NULL) |
| 5099 | return FALSE; | |
| 5100 | ||
| b31867b6 | 5101 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5102 | if (fdh == NULL |
| 5103 | && !bfd_link_relocatable (info) | |
| 5104 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5105 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5106 | && eh->elf.ref_regular) | |
| 5107 | { | |
| 5108 | /* Make an undefined function descriptor sym, in order to | |
| 5109 | pull in an --as-needed shared lib. Archives are handled | |
| 5110 | elsewhere. */ | |
| 5111 | fdh = make_fdh (info, eh); | |
| 5112 | if (fdh == NULL) | |
| 5113 | return FALSE; | |
| bb700d78 | 5114 | } |
| 8c5b4e52 AM |
5115 | |
| 5116 | if (fdh != NULL) | |
| 8387904d | 5117 | { |
| 35b0ce59 AM |
5118 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5119 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5120 | |
| 5121 | /* Make both descriptor and entry symbol have the most | |
| 5122 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5123 | if (entry_vis < descr_vis) |
| 5124 | fdh->elf.other += entry_vis - descr_vis; | |
| 5125 | else if (entry_vis > descr_vis) | |
| 5126 | eh->elf.other += descr_vis - entry_vis; | |
| 5127 | ||
| 8c5b4e52 AM |
5128 | /* Propagate reference flags from entry symbol to function |
| 5129 | descriptor symbol. */ | |
| bc4e12de | 5130 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5131 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5132 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5133 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5134 | ||
| 5135 | if (!fdh->elf.forced_local | |
| 5136 | && fdh->elf.dynindx == -1 | |
| 5137 | && fdh->elf.versioned != versioned_hidden | |
| 5138 | && (bfd_link_dll (info) | |
| 5139 | || fdh->elf.def_dynamic | |
| 5140 | || fdh->elf.ref_dynamic) | |
| 5141 | && (eh->elf.ref_regular | |
| 5142 | || eh->elf.def_regular)) | |
| 5143 | { | |
| 5144 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5145 | return FALSE; | |
| 35b0ce59 | 5146 | } |
| 8387904d | 5147 | } |
| 99877b66 | 5148 | |
| 8387904d AM |
5149 | return TRUE; |
| 5150 | } | |
| 5151 | ||
| f6c7c3e8 AM |
5152 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5153 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5154 | |
| 8387904d | 5155 | static bfd_boolean |
| f6c7c3e8 | 5156 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5157 | { |
| 99877b66 | 5158 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5159 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5160 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5161 | |
| 459609d6 | 5162 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5163 | { |
| b9399fcf AM |
5164 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); |
| 5165 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| 5166 | ||
| 459609d6 AM |
5167 | if (abiversion (ibfd) == 0) |
| 5168 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5169 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5170 | { |
| 695344c0 | 5171 | /* xgettext:c-format */ |
| cf97bcb0 AM |
5172 | _bfd_error_handler (_("%pB .opd not allowed in ABI version %d"), |
| 5173 | ibfd, abiversion (ibfd)); | |
| 459609d6 AM |
5174 | bfd_set_error (bfd_error_bad_value); |
| 5175 | return FALSE; | |
| f6c7c3e8 | 5176 | } |
| b9399fcf | 5177 | } |
| f6c7c3e8 | 5178 | |
| b9399fcf AM |
5179 | if (is_ppc64_elf (info->output_bfd)) |
| 5180 | { | |
| 5181 | /* For input files without an explicit abiversion in e_flags | |
| 5182 | we should have flagged any with symbol st_other bits set | |
| 5183 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5184 | Set the output abiversion if not yet set, and for any input | |
| 5185 | still ambiguous, take its abiversion from the output. | |
| 5186 | Differences in ABI are reported later. */ | |
| 5187 | if (abiversion (info->output_bfd) == 0) | |
| 5188 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5189 | else if (abiversion (ibfd) == 0) | |
| 5190 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| b3fac117 AM |
5191 | } |
| 5192 | ||
| 459609d6 AM |
5193 | htab = ppc_hash_table (info); |
| 5194 | if (htab == NULL) | |
| b9399fcf | 5195 | return TRUE; |
| 459609d6 | 5196 | |
| b9399fcf AM |
5197 | if (opd != NULL && opd->size != 0 |
| 5198 | && (ibfd->flags & DYNAMIC) == 0 | |
| 5199 | && (opd->flags & SEC_RELOC) != 0 | |
| 5200 | && opd->reloc_count != 0 | |
| 5201 | && !bfd_is_abs_section (opd->output_section) | |
| 5202 | && info->gc_sections) | |
| 5203 | { | |
| 5204 | /* Garbage collection needs some extra help with .opd sections. | |
| 5205 | We don't want to necessarily keep everything referenced by | |
| 5206 | relocs in .opd, as that would keep all functions. Instead, | |
| 5207 | if we reference an .opd symbol (a function descriptor), we | |
| 5208 | want to keep the function code symbol's section. This is | |
| 5209 | easy for global symbols, but for local syms we need to keep | |
| 5210 | information about the associated function section. */ | |
| 5211 | bfd_size_type amt; | |
| 5212 | asection **opd_sym_map; | |
| 5213 | Elf_Internal_Shdr *symtab_hdr; | |
| 5214 | Elf_Internal_Rela *relocs, *rel_end, *rel; | |
| 5215 | ||
| 5216 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); | |
| 5217 | opd_sym_map = bfd_zalloc (ibfd, amt); | |
| 5218 | if (opd_sym_map == NULL) | |
| 5219 | return FALSE; | |
| 5220 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; | |
| 5221 | relocs = _bfd_elf_link_read_relocs (ibfd, opd, NULL, NULL, | |
| 5222 | info->keep_memory); | |
| 5223 | if (relocs == NULL) | |
| 5224 | return FALSE; | |
| 5225 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 5226 | rel_end = relocs + opd->reloc_count - 1; | |
| 5227 | for (rel = relocs; rel < rel_end; rel++) | |
| 5228 | { | |
| 5229 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 5230 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5231 | ||
| 5232 | if (r_type == R_PPC64_ADDR64 | |
| 5233 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC | |
| 5234 | && r_symndx < symtab_hdr->sh_info) | |
| 5235 | { | |
| 5236 | Elf_Internal_Sym *isym; | |
| 5237 | asection *s; | |
| 5238 | ||
| 5239 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, r_symndx); | |
| 5240 | if (isym == NULL) | |
| 5241 | { | |
| 5242 | if (elf_section_data (opd)->relocs != relocs) | |
| 5243 | free (relocs); | |
| 5244 | return FALSE; | |
| 5245 | } | |
| 5246 | ||
| 5247 | s = bfd_section_from_elf_index (ibfd, isym->st_shndx); | |
| 5248 | if (s != NULL && s != opd) | |
| 5249 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; | |
| 5250 | } | |
| 5251 | } | |
| 5252 | if (elf_section_data (opd)->relocs != relocs) | |
| 5253 | free (relocs); | |
| 5254 | } | |
| 459609d6 AM |
5255 | |
| 5256 | p = &htab->dot_syms; | |
| 5257 | while ((eh = *p) != NULL) | |
| 5258 | { | |
| 5259 | *p = NULL; | |
| 5260 | if (&eh->elf == htab->elf.hgot) | |
| 5261 | ; | |
| 5262 | else if (htab->elf.hgot == NULL | |
| 5263 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5264 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5265 | else if (abiversion (ibfd) <= 1) |
| 5266 | { | |
| 5267 | htab->need_func_desc_adj = 1; | |
| 5268 | if (!add_symbol_adjust (eh, info)) | |
| 5269 | return FALSE; | |
| 5270 | } | |
| 459609d6 AM |
5271 | p = &eh->u.next_dot_sym; |
| 5272 | } | |
| b3fac117 | 5273 | return TRUE; |
| 8387904d AM |
5274 | } |
| 5275 | ||
| 97fed1c9 JJ |
5276 | /* Undo hash table changes when an --as-needed input file is determined |
| 5277 | not to be needed. */ | |
| 5278 | ||
| 5279 | static bfd_boolean | |
| e5034e59 AM |
5280 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5281 | struct bfd_link_info *info, | |
| 5282 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5283 | { |
| e5034e59 AM |
5284 | if (act == notice_not_needed) |
| 5285 | { | |
| 5286 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5287 | |
| e5034e59 AM |
5288 | if (htab == NULL) |
| 5289 | return FALSE; | |
| 4dfe6ac6 | 5290 | |
| e5034e59 AM |
5291 | htab->dot_syms = NULL; |
| 5292 | } | |
| 5293 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5294 | } |
| 5295 | ||
| aa374f67 AM |
5296 | /* If --just-symbols against a final linked binary, then assume we need |
| 5297 | toc adjusting stubs when calling functions defined there. */ | |
| 5298 | ||
| 5299 | static void | |
| 5300 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5301 | { | |
| 5302 | if ((sec->flags & SEC_CODE) != 0 | |
| 5303 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5304 | && is_ppc64_elf (sec->owner)) | |
| 5305 | { | |
| 2c3f079f AM |
5306 | if (abiversion (sec->owner) >= 2 |
| 5307 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5308 | sec->has_toc_reloc = 1; |
| 5309 | } | |
| 5310 | _bfd_elf_link_just_syms (sec, info); | |
| 5311 | } | |
| 5312 | ||
| e054468f | 5313 | static struct plt_entry ** |
| 4ce794b7 AM |
5314 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5315 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5316 | { |
| 5317 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5318 | struct plt_entry **local_plt; |
| f961d9dd | 5319 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5320 | |
| 5321 | if (local_got_ents == NULL) | |
| 5322 | { | |
| 5323 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5324 | ||
| e054468f AM |
5325 | size *= (sizeof (*local_got_ents) |
| 5326 | + sizeof (*local_plt) | |
| 5327 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5328 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5329 | if (local_got_ents == NULL) |
| e054468f | 5330 | return NULL; |
| 411e1bfb AM |
5331 | elf_local_got_ents (abfd) = local_got_ents; |
| 5332 | } | |
| 5333 | ||
| e054468f | 5334 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5335 | { |
| 5336 | struct got_entry *ent; | |
| 5337 | ||
| 5338 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5339 | if (ent->addend == r_addend |
| 5340 | && ent->owner == abfd | |
| 5341 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5342 | break; |
| 5343 | if (ent == NULL) | |
| 5344 | { | |
| 5345 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5346 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5347 | if (ent == NULL) |
| 5348 | return FALSE; | |
| 5349 | ent->next = local_got_ents[r_symndx]; | |
| 5350 | ent->addend = r_addend; | |
| e717da7e | 5351 | ent->owner = abfd; |
| 411e1bfb | 5352 | ent->tls_type = tls_type; |
| 927be08e | 5353 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5354 | ent->got.refcount = 0; |
| 5355 | local_got_ents[r_symndx] = ent; | |
| 5356 | } | |
| 5357 | ent->got.refcount += 1; | |
| 5358 | } | |
| 5359 | ||
| e054468f | 5360 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5361 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5362 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5363 | |
| 5364 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5365 | } |
| 5366 | ||
| 411e1bfb | 5367 | static bfd_boolean |
| e054468f | 5368 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5369 | { |
| 411e1bfb | 5370 | struct plt_entry *ent; |
| 1e2f5b6e | 5371 | |
| e054468f | 5372 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5373 | if (ent->addend == addend) |
| 5374 | break; | |
| 5375 | if (ent == NULL) | |
| 1e2f5b6e | 5376 | { |
| 411e1bfb | 5377 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5378 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5379 | if (ent == NULL) |
| 5380 | return FALSE; | |
| e054468f | 5381 | ent->next = *plist; |
| 411e1bfb AM |
5382 | ent->addend = addend; |
| 5383 | ent->plt.refcount = 0; | |
| e054468f | 5384 | *plist = ent; |
| 1e2f5b6e | 5385 | } |
| 411e1bfb | 5386 | ent->plt.refcount += 1; |
| b34976b6 | 5387 | return TRUE; |
| 1e2f5b6e AM |
5388 | } |
| 5389 | ||
| e054468f AM |
5390 | static bfd_boolean |
| 5391 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5392 | { | |
| 5393 | return (r_type == R_PPC64_REL24 | |
| 5394 | || r_type == R_PPC64_REL14 | |
| 5395 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5396 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5397 | || r_type == R_PPC64_ADDR24 | |
| 5398 | || r_type == R_PPC64_ADDR14 | |
| 5399 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5400 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5401 | } | |
| 5402 | ||
| 5bd4f169 | 5403 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5404 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5405 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5406 | |
| b34976b6 | 5407 | static bfd_boolean |
| 4ce794b7 AM |
5408 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5409 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5410 | { |
| 65f38f15 | 5411 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5412 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5413 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5414 | const Elf_Internal_Rela *rel; |
| 5415 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5416 | asection *sreloc; |
| 3a71aa26 | 5417 | struct elf_link_hash_entry *tga, *dottga; |
| b9399fcf | 5418 | bfd_boolean is_opd; |
| 5bd4f169 | 5419 | |
| 0e1862bb | 5420 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5421 | return TRUE; |
| 5bd4f169 | 5422 | |
| 680a3378 AM |
5423 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5424 | In particular, any relocs in such sections should not affect GOT | |
| 5425 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5426 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5427 | relocs, and there's not much point in propagating relocs to shared | |
| 5428 | libs that the dynamic linker won't relocate. */ | |
| 5429 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5430 | return TRUE; | |
| 5431 | ||
| 0c8d6e5c | 5432 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5433 | |
| 65f38f15 | 5434 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5435 | if (htab == NULL) |
| 5436 | return FALSE; | |
| 5437 | ||
| 3a71aa26 AM |
5438 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5439 | FALSE, FALSE, TRUE); | |
| 5440 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5441 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5442 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5443 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5444 | sreloc = NULL; |
| b9399fcf | 5445 | is_opd = ppc64_elf_section_data (sec)->sec_type == sec_opd; |
| 5bd4f169 AM |
5446 | rel_end = relocs + sec->reloc_count; |
| 5447 | for (rel = relocs; rel < rel_end; rel++) | |
| 5448 | { | |
| 5449 | unsigned long r_symndx; | |
| 5450 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5451 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5452 | int tls_type; |
| 7c8fe5c4 | 5453 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5454 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5455 | |
| 5456 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5457 | if (r_symndx < symtab_hdr->sh_info) | |
| 5458 | h = NULL; | |
| 5459 | else | |
| 973a3492 L |
5460 | { |
| 5461 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5462 | h = elf_follow_link (h); |
| 1c865ab2 AM |
5463 | |
| 5464 | if (h == htab->elf.hgot) | |
| 5465 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5466 | } |
| 5bd4f169 | 5467 | |
| 727fc41e | 5468 | tls_type = 0; |
| e054468f | 5469 | ifunc = NULL; |
| 25f23106 AM |
5470 | if (h != NULL) |
| 5471 | { | |
| 5472 | if (h->type == STT_GNU_IFUNC) | |
| 5473 | { | |
| 5474 | h->needs_plt = 1; | |
| 5475 | ifunc = &h->plt.plist; | |
| 5476 | } | |
| 5477 | } | |
| 5478 | else | |
| 5479 | { | |
| 5480 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5481 | abfd, r_symndx); | |
| 5482 | if (isym == NULL) | |
| 5483 | return FALSE; | |
| 5484 | ||
| 5485 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5486 | { | |
| 5487 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5488 | rel->r_addend, PLT_IFUNC); | |
| 5489 | if (ifunc == NULL) | |
| 5490 | return FALSE; | |
| 5491 | } | |
| 5492 | } | |
| 727fc41e | 5493 | |
| cbf95972 | 5494 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5495 | switch (r_type) |
| 5bd4f169 | 5496 | { |
| 727fc41e AM |
5497 | case R_PPC64_TLSGD: |
| 5498 | case R_PPC64_TLSLD: | |
| 5499 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5500 | its parameter symbol. */ | |
| 5501 | break; | |
| 5502 | ||
| 411e1bfb AM |
5503 | case R_PPC64_GOT_TLSLD16: |
| 5504 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5505 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5506 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5507 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5508 | goto dogottls; |
| 5509 | ||
| 5510 | case R_PPC64_GOT_TLSGD16: | |
| 5511 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5512 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5513 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5514 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5515 | goto dogottls; |
| 5516 | ||
| 5517 | case R_PPC64_GOT_TPREL16_DS: | |
| 5518 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5519 | case R_PPC64_GOT_TPREL16_HI: | |
| 5520 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5521 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5522 | info->flags |= DF_STATIC_TLS; |
| 5523 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5524 | goto dogottls; | |
| 5525 | ||
| 5526 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5527 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5528 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5529 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5530 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5531 | dogottls: | |
| 5532 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5533 | /* Fall through */ |
| 411e1bfb | 5534 | |
| 5bd4f169 | 5535 | case R_PPC64_GOT16: |
| 5bd4f169 | 5536 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5537 | case R_PPC64_GOT16_HA: |
| 5538 | case R_PPC64_GOT16_HI: | |
| 5539 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5540 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5541 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5542 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5543 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5544 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5545 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5546 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5547 | || r_type == R_PPC64_GOT16 | |
| 5548 | || r_type == R_PPC64_GOT16_DS) | |
| 5549 | { | |
| 5550 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5551 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5552 | } |
| 5553 | ||
| e717da7e AM |
5554 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5555 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5556 | return FALSE; |
| 5bd4f169 AM |
5557 | |
| 5558 | if (h != NULL) | |
| 5559 | { | |
| 411e1bfb AM |
5560 | struct ppc_link_hash_entry *eh; |
| 5561 | struct got_entry *ent; | |
| 65f38f15 | 5562 | |
| 411e1bfb AM |
5563 | eh = (struct ppc_link_hash_entry *) h; |
| 5564 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5565 | if (ent->addend == rel->r_addend | |
| e717da7e | 5566 | && ent->owner == abfd |
| 411e1bfb AM |
5567 | && ent->tls_type == tls_type) |
| 5568 | break; | |
| 5569 | if (ent == NULL) | |
| 5bd4f169 | 5570 | { |
| 411e1bfb | 5571 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5572 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5573 | if (ent == NULL) |
| b34976b6 | 5574 | return FALSE; |
| 411e1bfb AM |
5575 | ent->next = eh->elf.got.glist; |
| 5576 | ent->addend = rel->r_addend; | |
| e717da7e | 5577 | ent->owner = abfd; |
| 411e1bfb | 5578 | ent->tls_type = tls_type; |
| 927be08e | 5579 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5580 | ent->got.refcount = 0; |
| 5581 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5582 | } |
| 411e1bfb | 5583 | ent->got.refcount += 1; |
| e7b938ca | 5584 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5585 | } |
| 411e1bfb AM |
5586 | else |
| 5587 | /* This is a global offset table entry for a local symbol. */ | |
| 5588 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5589 | rel->r_addend, tls_type)) | |
| 5590 | return FALSE; | |
| a345bc8d AM |
5591 | |
| 5592 | /* We may also need a plt entry if the symbol turns out to be | |
| 5593 | an ifunc. */ | |
| 0e1862bb | 5594 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5595 | { |
| 5596 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5597 | return FALSE; | |
| 5598 | } | |
| 5bd4f169 AM |
5599 | break; |
| 5600 | ||
| 5bd4f169 | 5601 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5602 | case R_PPC64_PLT16_HI: |
| 5603 | case R_PPC64_PLT16_LO: | |
| 5604 | case R_PPC64_PLT32: | |
| 5605 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5606 | /* This symbol requires a procedure linkage table entry. */ |
| 5607 | plt_list = ifunc; | |
| 5608 | if (h != NULL) | |
| e054468f | 5609 | { |
| e054468f AM |
5610 | h->needs_plt = 1; |
| 5611 | if (h->root.root.string[0] == '.' | |
| 5612 | && h->root.root.string[1] != '\0') | |
| 5613 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5614 | plt_list = &h->plt.plist; |
| 5615 | } | |
| 5616 | if (plt_list == NULL) | |
| 5617 | { | |
| 5618 | /* It does not make sense to have a procedure linkage | |
| 5619 | table entry for a non-ifunc local symbol. */ | |
| 5620 | info->callbacks->einfo | |
| 695344c0 | 5621 | /* xgettext:c-format */ |
| 174d0a74 | 5622 | (_("%H: %s reloc against local symbol\n"), |
| cbf95972 AM |
5623 | abfd, sec, rel->r_offset, |
| 5624 | ppc64_elf_howto_table[r_type]->name); | |
| 5625 | bfd_set_error (bfd_error_bad_value); | |
| 5626 | return FALSE; | |
| e054468f | 5627 | } |
| cbf95972 AM |
5628 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5629 | return FALSE; | |
| 5bd4f169 AM |
5630 | break; |
| 5631 | ||
| 5632 | /* The following relocations don't need to propagate the | |
| 5633 | relocation if linking a shared object since they are | |
| 5634 | section relative. */ | |
| 5635 | case R_PPC64_SECTOFF: | |
| 5636 | case R_PPC64_SECTOFF_LO: | |
| 5637 | case R_PPC64_SECTOFF_HI: | |
| 5638 | case R_PPC64_SECTOFF_HA: | |
| 5639 | case R_PPC64_SECTOFF_DS: | |
| 5640 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5641 | case R_PPC64_DTPREL16: |
| 5642 | case R_PPC64_DTPREL16_LO: | |
| 5643 | case R_PPC64_DTPREL16_HI: | |
| 5644 | case R_PPC64_DTPREL16_HA: | |
| 5645 | case R_PPC64_DTPREL16_DS: | |
| 5646 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5647 | case R_PPC64_DTPREL16_HIGH: |
| 5648 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5649 | case R_PPC64_DTPREL16_HIGHER: |
| 5650 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5651 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5652 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5653 | break; |
| 5654 | ||
| ad8e1ba5 | 5655 | /* Nor do these. */ |
| 25f23106 AM |
5656 | case R_PPC64_REL16: |
| 5657 | case R_PPC64_REL16_LO: | |
| 5658 | case R_PPC64_REL16_HI: | |
| 5659 | case R_PPC64_REL16_HA: | |
| a680de9a | 5660 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5661 | break; |
| 5662 | ||
| 45965137 AM |
5663 | /* Not supported as a dynamic relocation. */ |
| 5664 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5665 | if (bfd_link_pic (info)) |
| 45965137 AM |
5666 | { |
| 5667 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5668 | ppc_howto_init (); | |
| 695344c0 | 5669 | /* xgettext:c-format */ |
| 174d0a74 | 5670 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| cf97bcb0 | 5671 | "in shared libraries and PIEs\n"), |
| 45965137 AM |
5672 | abfd, sec, rel->r_offset, |
| 5673 | ppc64_elf_howto_table[r_type]->name); | |
| 5674 | bfd_set_error (bfd_error_bad_value); | |
| 5675 | return FALSE; | |
| 5676 | } | |
| 5677 | break; | |
| 5678 | ||
| ad8e1ba5 | 5679 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5680 | case R_PPC64_TOC16_DS: |
| 5681 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5682 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5683 | /* Fall through. */ |
| ad8e1ba5 AM |
5684 | case R_PPC64_TOC16_LO: |
| 5685 | case R_PPC64_TOC16_HI: | |
| 5686 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5687 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5688 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5689 | break; |
| 5690 | ||
| 006589cf AM |
5691 | /* Marker reloc. */ |
| 5692 | case R_PPC64_ENTRY: | |
| 5693 | break; | |
| 5694 | ||
| 5bd4f169 AM |
5695 | /* This relocation describes the C++ object vtable hierarchy. |
| 5696 | Reconstruct it for later use during GC. */ | |
| 5697 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5698 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5699 | return FALSE; |
| 5bd4f169 AM |
5700 | break; |
| 5701 | ||
| 5702 | /* This relocation describes which C++ vtable entries are actually | |
| 5703 | used. Record for later use during GC. */ | |
| 5704 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5705 | BFD_ASSERT (h != NULL); |
| 5706 | if (h != NULL | |
| 5707 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5708 | return FALSE; |
| 5bd4f169 AM |
5709 | break; |
| 5710 | ||
| 721956f4 AM |
5711 | case R_PPC64_REL14: |
| 5712 | case R_PPC64_REL14_BRTAKEN: | |
| 5713 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5714 | { |
| 5715 | asection *dest = NULL; | |
| 5716 | ||
| 5717 | /* Heuristic: If jumping outside our section, chances are | |
| 5718 | we are going to need a stub. */ | |
| 5719 | if (h != NULL) | |
| 5720 | { | |
| 5721 | /* If the sym is weak it may be overridden later, so | |
| 5722 | don't assume we know where a weak sym lives. */ | |
| 5723 | if (h->root.type == bfd_link_hash_defined) | |
| 5724 | dest = h->root.u.def.section; | |
| 5725 | } | |
| 5726 | else | |
| 87d72d41 AM |
5727 | { |
| 5728 | Elf_Internal_Sym *isym; | |
| 5729 | ||
| 5730 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5731 | abfd, r_symndx); | |
| 5732 | if (isym == NULL) | |
| 5733 | return FALSE; | |
| 5734 | ||
| 5735 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5736 | } | |
| 5737 | ||
| 220c76dd | 5738 | if (dest != sec) |
| 7c8fe5c4 | 5739 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5740 | } |
| 721956f4 AM |
5741 | /* Fall through. */ |
| 5742 | ||
| 5d1634d7 | 5743 | case R_PPC64_REL24: |
| cbf95972 AM |
5744 | plt_list = ifunc; |
| 5745 | if (h != NULL) | |
| 5d1634d7 | 5746 | { |
| e054468f AM |
5747 | h->needs_plt = 1; |
| 5748 | if (h->root.root.string[0] == '.' | |
| 5749 | && h->root.root.string[1] != '\0') | |
| 5750 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5751 | |
| 3a71aa26 | 5752 | if (h == tga || h == dottga) |
| cbf95972 AM |
5753 | { |
| 5754 | sec->has_tls_reloc = 1; | |
| 5755 | if (rel != relocs | |
| 5756 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5757 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5758 | /* We have a new-style __tls_get_addr call with | |
| 5759 | a marker reloc. */ | |
| 5760 | ; | |
| 5761 | else | |
| 5762 | /* Mark this section as having an old-style call. */ | |
| 5763 | sec->has_tls_get_addr_call = 1; | |
| 5764 | } | |
| 5765 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5766 | } |
| cbf95972 AM |
5767 | |
| 5768 | /* We may need a .plt entry if the function this reloc | |
| 5769 | refers to is in a shared lib. */ | |
| 5770 | if (plt_list | |
| 5771 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5772 | return FALSE; | |
| 411e1bfb AM |
5773 | break; |
| 5774 | ||
| cbf95972 AM |
5775 | case R_PPC64_ADDR14: |
| 5776 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5777 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5778 | case R_PPC64_ADDR24: | |
| 5779 | goto dodyn; | |
| 5780 | ||
| 411e1bfb AM |
5781 | case R_PPC64_TPREL64: |
| 5782 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5783 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5784 | info->flags |= DF_STATIC_TLS; |
| 5785 | goto dotlstoc; | |
| 5786 | ||
| 5787 | case R_PPC64_DTPMOD64: | |
| 5788 | if (rel + 1 < rel_end | |
| 5789 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5790 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5791 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5792 | else |
| 951fd09b | 5793 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5794 | goto dotlstoc; |
| 5795 | ||
| 5796 | case R_PPC64_DTPREL64: | |
| 5797 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5798 | if (rel != relocs | |
| 5799 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5800 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5801 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5802 | Don't mark with TLS_DTPREL. */ | |
| 5803 | goto dodyn; | |
| 5804 | ||
| 5805 | dotlstoc: | |
| 5806 | sec->has_tls_reloc = 1; | |
| 5807 | if (h != NULL) | |
| 5808 | { | |
| 5809 | struct ppc_link_hash_entry *eh; | |
| 5810 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5811 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5812 | } |
| 5813 | else | |
| 5814 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5815 | rel->r_addend, tls_type)) | |
| 5816 | return FALSE; | |
| 5817 | ||
| 7c8fe5c4 AM |
5818 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5819 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5820 | { |
| 3a71aa26 AM |
5821 | bfd_size_type amt; |
| 5822 | ||
| e7b938ca | 5823 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5824 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5825 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5826 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5827 | return FALSE; | |
| 5828 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5829 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5830 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5831 | return FALSE; |
| 7c8fe5c4 AM |
5832 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5833 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5834 | } |
| 5835 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5836 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5837 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5838 | |
| 5839 | /* Mark the second slot of a GD or LD entry. | |
| 5840 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5841 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5842 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5843 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5844 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5845 | goto dodyn; |
| 5846 | ||
| 5847 | case R_PPC64_TPREL16: | |
| 5848 | case R_PPC64_TPREL16_LO: | |
| 5849 | case R_PPC64_TPREL16_HI: | |
| 5850 | case R_PPC64_TPREL16_HA: | |
| 5851 | case R_PPC64_TPREL16_DS: | |
| 5852 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5853 | case R_PPC64_TPREL16_HIGH: |
| 5854 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5855 | case R_PPC64_TPREL16_HIGHER: |
| 5856 | case R_PPC64_TPREL16_HIGHERA: | |
| 5857 | case R_PPC64_TPREL16_HIGHEST: | |
| 5858 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5859 | if (bfd_link_dll (info)) |
| 5860 | info->flags |= DF_STATIC_TLS; | |
| 5861 | goto dodyn; | |
| 5d1634d7 | 5862 | |
| e86ce104 | 5863 | case R_PPC64_ADDR64: |
| b9399fcf | 5864 | if (is_opd |
| 1e2f5b6e | 5865 | && rel + 1 < rel_end |
| 4ce794b7 | 5866 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5867 | { |
| 8387904d | 5868 | if (h != NULL) |
| 8c5b4e52 | 5869 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 1e2f5b6e | 5870 | } |
| e86ce104 AM |
5871 | /* Fall through. */ |
| 5872 | ||
| 65f38f15 AM |
5873 | case R_PPC64_ADDR16: |
| 5874 | case R_PPC64_ADDR16_DS: | |
| 5875 | case R_PPC64_ADDR16_HA: | |
| 5876 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5877 | case R_PPC64_ADDR16_HIGH: |
| 5878 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5879 | case R_PPC64_ADDR16_HIGHER: |
| 5880 | case R_PPC64_ADDR16_HIGHERA: | |
| 5881 | case R_PPC64_ADDR16_HIGHEST: | |
| 5882 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5883 | case R_PPC64_ADDR16_LO: | |
| 5884 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5885 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5886 | && rel->r_addend == 0) |
| 5887 | { | |
| 5888 | /* We may need a .plt entry if this reloc refers to a | |
| 5889 | function in a shared lib. */ | |
| 5890 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5891 | return FALSE; | |
| 5892 | h->pointer_equality_needed = 1; | |
| 5893 | } | |
| 5894 | /* Fall through. */ | |
| 5895 | ||
| 5896 | case R_PPC64_REL30: | |
| 5897 | case R_PPC64_REL32: | |
| 5898 | case R_PPC64_REL64: | |
| 65f38f15 | 5899 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5900 | case R_PPC64_UADDR16: |
| 5901 | case R_PPC64_UADDR32: | |
| 5902 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5903 | case R_PPC64_TOC: |
| 0e1862bb | 5904 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5905 | /* We may need a copy reloc. */ |
| f5385ebf | 5906 | h->non_got_ref = 1; |
| 81848ca0 | 5907 | |
| 41bd81ab | 5908 | /* Don't propagate .opd relocs. */ |
| b9399fcf | 5909 | if (NO_OPD_RELOCS && is_opd) |
| e86ce104 | 5910 | break; |
| e86ce104 | 5911 | |
| 65f38f15 AM |
5912 | /* If we are creating a shared library, and this is a reloc |
| 5913 | against a global symbol, or a non PC relative reloc | |
| 5914 | against a local symbol, then we need to copy the reloc | |
| 5915 | into the shared library. However, if we are linking with | |
| 5916 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5917 | global symbol which is defined in an object we are | |
| 5918 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5919 | this point we have not seen all the input files, so it is | |
| 5920 | possible that DEF_REGULAR is not set now but will be set | |
| 5921 | later (it is never cleared). In case of a weak definition, | |
| 5922 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5923 | a shared library. We account for that possibility below by | |
| f4656909 | 5924 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5925 | table entry. A similar situation occurs when creating |
| 5926 | shared libraries and symbol visibility changes render the | |
| 5927 | symbol local. | |
| 5928 | ||
| 5929 | If on the other hand, we are creating an executable, we | |
| 5930 | may need to keep relocations for symbols satisfied by a | |
| 5931 | dynamic library if we manage to avoid copy relocs for the | |
| 5932 | symbol. */ | |
| 411e1bfb | 5933 | dodyn: |
| 0e1862bb | 5934 | if ((bfd_link_pic (info) |
| 1d483afe | 5935 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5936 | || (h != NULL |
| 198f1157 | 5937 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5938 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5939 | || !h->def_regular)))) |
| f4656909 | 5940 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5941 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5942 | && h != NULL |
| 5943 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5944 | || !h->def_regular)) |
| 0e1862bb | 5945 | || (!bfd_link_pic (info) |
| 25f23106 | 5946 | && ifunc != NULL)) |
| 5bd4f169 | 5947 | { |
| 65f38f15 AM |
5948 | /* We must copy these reloc types into the output file. |
| 5949 | Create a reloc section in dynobj and make room for | |
| 5950 | this reloc. */ | |
| 5bd4f169 AM |
5951 | if (sreloc == NULL) |
| 5952 | { | |
| 83bac4b0 NC |
5953 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5954 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5955 | |
| 5bd4f169 | 5956 | if (sreloc == NULL) |
| 83bac4b0 | 5957 | return FALSE; |
| 5bd4f169 AM |
5958 | } |
| 5959 | ||
| 65f38f15 AM |
5960 | /* If this is a global symbol, we count the number of |
| 5961 | relocations we need for this symbol. */ | |
| 5962 | if (h != NULL) | |
| 5963 | { | |
| 19e08130 AM |
5964 | struct elf_dyn_relocs *p; |
| 5965 | struct elf_dyn_relocs **head; | |
| 5966 | ||
| ec338859 | 5967 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5968 | p = *head; |
| 5969 | if (p == NULL || p->sec != sec) | |
| 5970 | { | |
| 5971 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5972 | if (p == NULL) | |
| 5973 | return FALSE; | |
| 5974 | p->next = *head; | |
| 5975 | *head = p; | |
| 5976 | p->sec = sec; | |
| 5977 | p->count = 0; | |
| 5978 | p->pc_count = 0; | |
| 5979 | } | |
| 5980 | p->count += 1; | |
| 5981 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5982 | p->pc_count += 1; | |
| 65f38f15 AM |
5983 | } |
| 5984 | else | |
| 5985 | { | |
| ec338859 AM |
5986 | /* Track dynamic relocs needed for local syms too. |
| 5987 | We really need local syms available to do this | |
| 5988 | easily. Oh well. */ | |
| 19e08130 AM |
5989 | struct ppc_dyn_relocs *p; |
| 5990 | struct ppc_dyn_relocs **head; | |
| 5991 | bfd_boolean is_ifunc; | |
| ec338859 | 5992 | asection *s; |
| 6edfbbad | 5993 | void *vpp; |
| 87d72d41 | 5994 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5995 | |
| 87d72d41 AM |
5996 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5997 | abfd, r_symndx); | |
| 5998 | if (isym == NULL) | |
| b34976b6 | 5999 | return FALSE; |
| ec338859 | 6000 | |
| 87d72d41 AM |
6001 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 6002 | if (s == NULL) | |
| 6003 | s = sec; | |
| 6004 | ||
| 6edfbbad | 6005 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
6006 | head = (struct ppc_dyn_relocs **) vpp; |
| 6007 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 6008 | p = *head; | |
| 6009 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 6010 | p = p->next; | |
| 6011 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 6012 | { | |
| 6013 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6014 | if (p == NULL) | |
| 6015 | return FALSE; | |
| 6016 | p->next = *head; | |
| 6017 | *head = p; | |
| 6018 | p->sec = sec; | |
| 6019 | p->ifunc = is_ifunc; | |
| 6020 | p->count = 0; | |
| 6021 | } | |
| 6022 | p->count += 1; | |
| ec338859 | 6023 | } |
| 65f38f15 | 6024 | } |
| 5bd4f169 | 6025 | break; |
| 65f38f15 AM |
6026 | |
| 6027 | default: | |
| 96e0dda4 | 6028 | break; |
| 5bd4f169 AM |
6029 | } |
| 6030 | } | |
| 6031 | ||
| b34976b6 | 6032 | return TRUE; |
| 5bd4f169 AM |
6033 | } |
| 6034 | ||
| ee67d69a AM |
6035 | /* Merge backend specific data from an object file to the output |
| 6036 | object file when linking. */ | |
| 6037 | ||
| 6038 | static bfd_boolean | |
| 50e03d47 | 6039 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6040 | { |
| 50e03d47 | 6041 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6042 | unsigned long iflags, oflags; |
| 6043 | ||
| 6044 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6045 | return TRUE; | |
| 6046 | ||
| 6047 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6048 | return TRUE; | |
| 6049 | ||
| 50e03d47 | 6050 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6051 | return FALSE; |
| 6052 | ||
| 6053 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6054 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6055 | ||
| f6c7c3e8 | 6056 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6057 | { |
| 4eca0228 | 6058 | _bfd_error_handler |
| 695344c0 | 6059 | /* xgettext:c-format */ |
| 871b3ab2 | 6060 | (_("%pB uses unknown e_flags 0x%lx"), ibfd, iflags); |
| ee67d69a AM |
6061 | bfd_set_error (bfd_error_bad_value); |
| 6062 | return FALSE; | |
| 6063 | } | |
| f6c7c3e8 | 6064 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6065 | { |
| 4eca0228 | 6066 | _bfd_error_handler |
| 695344c0 | 6067 | /* xgettext:c-format */ |
| 871b3ab2 | 6068 | (_("%pB: ABI version %ld is not compatible with ABI version %ld output"), |
| ee67d69a AM |
6069 | ibfd, iflags, oflags); |
| 6070 | bfd_set_error (bfd_error_bad_value); | |
| 6071 | return FALSE; | |
| 6072 | } | |
| 6073 | ||
| 50e03d47 | 6074 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6075 | |
| ee67d69a | 6076 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6077 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6078 | |
| 6079 | return TRUE; | |
| 6080 | } | |
| 6081 | ||
| 6082 | static bfd_boolean | |
| 6083 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6084 | { | |
| 6085 | /* Print normal ELF private data. */ | |
| 6086 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6087 | ||
| 6088 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6089 | { | |
| 6090 | FILE *file = ptr; | |
| 6091 | ||
| ee67d69a AM |
6092 | fprintf (file, _("private flags = 0x%lx:"), |
| 6093 | elf_elfheader (abfd)->e_flags); | |
| 6094 | ||
| 6095 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6096 | fprintf (file, _(" [abiv%ld]"), | |
| 6097 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6098 | fputc ('\n', file); | |
| 6099 | } | |
| 6100 | ||
| 6101 | return TRUE; | |
| 6102 | } | |
| 6103 | ||
| 8387904d | 6104 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6105 | of the code entry point, and its section, which must be in the same |
| 6106 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6107 | |
| 6108 | static bfd_vma | |
| 6109 | opd_entry_value (asection *opd_sec, | |
| 6110 | bfd_vma offset, | |
| 6111 | asection **code_sec, | |
| aef36ac1 AM |
6112 | bfd_vma *code_off, |
| 6113 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6114 | { |
| 6115 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6116 | Elf_Internal_Rela *relocs; |
| 8387904d | 6117 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6118 | bfd_vma val; |
| 8387904d | 6119 | |
| 9f296da3 AM |
6120 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6121 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6122 | if (opd_sec->reloc_count == 0) |
| 6123 | { | |
| 729eabd5 | 6124 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6125 | |
| 729eabd5 AM |
6126 | if (contents == NULL) |
| 6127 | { | |
| 6128 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6129 | return (bfd_vma) -1; | |
| 6130 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6131 | } | |
| ee1e4ede | 6132 | |
| dbb3fbbb | 6133 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6134 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6135 | return (bfd_vma) -1; |
| 6136 | ||
| 729eabd5 | 6137 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6138 | if (code_sec != NULL) |
| 6139 | { | |
| 6140 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6141 | |
| aef36ac1 | 6142 | if (in_code_sec) |
| 4b85d634 | 6143 | { |
| aef36ac1 AM |
6144 | sec = *code_sec; |
| 6145 | if (sec->vma <= val | |
| 6146 | && val < sec->vma + sec->size) | |
| 6147 | likely = sec; | |
| 6148 | else | |
| 6149 | val = -1; | |
| 6150 | } | |
| 6151 | else | |
| 6152 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6153 | if (sec->vma <= val | |
| 6154 | && (sec->flags & SEC_LOAD) != 0 | |
| 6155 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6156 | likely = sec; | |
| 6157 | if (likely != NULL) | |
| 6158 | { | |
| 6159 | *code_sec = likely; | |
| 6160 | if (code_off != NULL) | |
| 6161 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6162 | } |
| 6163 | } | |
| aef36ac1 | 6164 | return val; |
| 4b85d634 AM |
6165 | } |
| 6166 | ||
| 0c8d6e5c | 6167 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6168 | |
| 729eabd5 | 6169 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6170 | if (relocs == NULL) |
| 6171 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6172 | /* PR 17512: file: df8e1fd6. */ |
| 6173 | if (relocs == NULL) | |
| 6174 | return (bfd_vma) -1; | |
| 645ea6a9 | 6175 | |
| 8387904d | 6176 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6177 | lo = relocs; |
| 8387904d | 6178 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6179 | val = (bfd_vma) -1; |
| 8387904d AM |
6180 | while (lo < hi) |
| 6181 | { | |
| 6182 | look = lo + (hi - lo) / 2; | |
| 6183 | if (look->r_offset < offset) | |
| 6184 | lo = look + 1; | |
| 6185 | else if (look->r_offset > offset) | |
| 6186 | hi = look; | |
| 6187 | else | |
| 6188 | { | |
| 0ffa91dd NC |
6189 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6190 | ||
| 8387904d AM |
6191 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6192 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6193 | { | |
| 6194 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6195 | asection *sec = NULL; |
| 8387904d | 6196 | |
| b53dfeb2 AM |
6197 | if (symndx >= symtab_hdr->sh_info |
| 6198 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6199 | { |
| 6200 | struct elf_link_hash_entry **sym_hashes; | |
| 6201 | struct elf_link_hash_entry *rh; | |
| 6202 | ||
| 6203 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6204 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6205 | if (rh != NULL) |
| 6206 | { | |
| 6207 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6208 | if (rh->root.type != bfd_link_hash_defined |
| 6209 | && rh->root.type != bfd_link_hash_defweak) | |
| 6210 | break; | |
| 6211 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6212 | { |
| bb854a36 AM |
6213 | val = rh->root.u.def.value; |
| 6214 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6215 | } |
| 6216 | } | |
| 6217 | } | |
| 6218 | ||
| 6219 | if (sec == NULL) | |
| 6220 | { | |
| 6221 | Elf_Internal_Sym *sym; | |
| 6222 | ||
| 6223 | if (symndx < symtab_hdr->sh_info) | |
| 6224 | { | |
| 6225 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6226 | if (sym == NULL) | |
| 6227 | { | |
| 6228 | size_t symcnt = symtab_hdr->sh_info; | |
| 6229 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6230 | symcnt, 0, | |
| 6231 | NULL, NULL, NULL); | |
| 6232 | if (sym == NULL) | |
| 6233 | break; | |
| 6234 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6235 | } | |
| 6236 | sym += symndx; | |
| 128205bb AM |
6237 | } |
| 6238 | else | |
| 6239 | { | |
| b53dfeb2 AM |
6240 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6241 | 1, symndx, | |
| 6242 | NULL, NULL, NULL); | |
| 128205bb AM |
6243 | if (sym == NULL) |
| 6244 | break; | |
| 128205bb | 6245 | } |
| b53dfeb2 AM |
6246 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6247 | if (sec == NULL) | |
| 6248 | break; | |
| 6249 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6250 | val = sym->st_value; | |
| 8387904d | 6251 | } |
| b53dfeb2 | 6252 | |
| 8387904d AM |
6253 | val += look->r_addend; |
| 6254 | if (code_off != NULL) | |
| 6255 | *code_off = val; | |
| 6256 | if (code_sec != NULL) | |
| aef36ac1 AM |
6257 | { |
| 6258 | if (in_code_sec && *code_sec != sec) | |
| 6259 | return -1; | |
| 6260 | else | |
| 6261 | *code_sec = sec; | |
| 6262 | } | |
| b53dfeb2 | 6263 | if (sec->output_section != NULL) |
| 8387904d | 6264 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6265 | } |
| 6266 | break; | |
| 6267 | } | |
| 6268 | } | |
| 645ea6a9 | 6269 | |
| 645ea6a9 | 6270 | return val; |
| 8387904d AM |
6271 | } |
| 6272 | ||
| aef36ac1 AM |
6273 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6274 | function size and set *CODE_OFF to the function's entry point, | |
| 6275 | otherwise return zero. */ | |
| 9f296da3 | 6276 | |
| aef36ac1 AM |
6277 | static bfd_size_type |
| 6278 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6279 | bfd_vma *code_off) | |
| 9f296da3 | 6280 | { |
| aef36ac1 AM |
6281 | bfd_size_type size; |
| 6282 | ||
| 6283 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6284 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6285 | return 0; | |
| 6286 | ||
| 6287 | size = 0; | |
| 6288 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6289 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6290 | ||
| 6291 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6292 | { |
| b07bca4e AM |
6293 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6294 | bfd_vma symval = sym->value; | |
| 6295 | ||
| 6296 | if (opd != NULL | |
| 6297 | && opd->adjust != NULL | |
| 6298 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6299 | { | |
| 6300 | /* opd_entry_value will use cached relocs that have been | |
| 6301 | adjusted, but with raw symbols. That means both local | |
| 6302 | and global symbols need adjusting. */ | |
| 6303 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6304 | if (adjust == -1) | |
| 6305 | return 0; | |
| 6306 | symval += adjust; | |
| 6307 | } | |
| 6308 | ||
| 6309 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6310 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6311 | return 0; | |
| 6312 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6313 | symbol. This size has nothing to do with the code size of the | |
| 6314 | function, which is what we're supposed to return, but the | |
| 6315 | code size isn't available without looking up the dot-sym. | |
| 6316 | However, doing that would be a waste of time particularly | |
| 6317 | since elf_find_function will look at the dot-sym anyway. | |
| 6318 | Now, elf_find_function will keep the largest size of any | |
| 6319 | function sym found at the code address of interest, so return | |
| 6320 | 1 here to avoid it incorrectly caching a larger function size | |
| 6321 | for a small function. This does mean we return the wrong | |
| 6322 | size for a new-ABI function of size 24, but all that does is | |
| 6323 | disable caching for such functions. */ | |
| 6324 | if (size == 24) | |
| 6325 | size = 1; | |
| 9f296da3 | 6326 | } |
| aef36ac1 AM |
6327 | else |
| 6328 | { | |
| 6329 | if (sym->section != sec) | |
| 6330 | return 0; | |
| 6331 | *code_off = sym->value; | |
| 6332 | } | |
| 6333 | if (size == 0) | |
| 6334 | size = 1; | |
| 6335 | return size; | |
| 9f296da3 AM |
6336 | } |
| 6337 | ||
| f378ab09 AM |
6338 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6339 | object with st_other localentry bits of zero, ie. its local entry | |
| 6340 | point coincides with its global entry point. */ | |
| 6341 | ||
| 6342 | static bfd_boolean | |
| 6343 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6344 | { | |
| 6345 | return (h != NULL | |
| 6346 | && h->type == STT_FUNC | |
| 6347 | && h->root.type == bfd_link_hash_defined | |
| 6348 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6349 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6350 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6351 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6352 | } | |
| 6353 | ||
| 854b41e7 AM |
6354 | /* Return true if symbol is defined in a regular object file. */ |
| 6355 | ||
| 6356 | static bfd_boolean | |
| 6357 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6358 | { | |
| 6359 | return ((h->root.type == bfd_link_hash_defined | |
| 6360 | || h->root.type == bfd_link_hash_defweak) | |
| 6361 | && h->root.u.def.section != NULL | |
| 6362 | && h->root.u.def.section->output_section != NULL); | |
| 6363 | } | |
| 6364 | ||
| b31867b6 AM |
6365 | /* If FDH is a function descriptor symbol, return the associated code |
| 6366 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6367 | ||
| 6368 | static struct ppc_link_hash_entry * | |
| 6369 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6370 | { | |
| 6371 | if (fdh->is_func_descriptor) | |
| 6372 | { | |
| 6373 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6374 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6375 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6376 | return fh; | |
| 6377 | } | |
| 6378 | return NULL; | |
| 6379 | } | |
| 6380 | ||
| 6381 | /* If FH is a function code entry symbol, return the associated | |
| 6382 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6383 | ||
| 6384 | static struct ppc_link_hash_entry * | |
| 6385 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6386 | { | |
| 6387 | if (fh->oh != NULL | |
| 6388 | && fh->oh->is_func_descriptor) | |
| 6389 | { | |
| 6390 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6391 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6392 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6393 | return fdh; | |
| 6394 | } | |
| 6395 | return NULL; | |
| 6396 | } | |
| 6397 | ||
| 8c5b4e52 AM |
6398 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6399 | ||
| 6400 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6401 | ||
| 6402 | static bfd_boolean | |
| 6403 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6404 | { | |
| 6405 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6406 | ||
| 6407 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6408 | { | |
| 6409 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6410 | htab->need_func_desc_adj = 0; | |
| 6411 | } | |
| 6412 | return bfd_elf_gc_sections (abfd, info); | |
| 6413 | } | |
| 6414 | ||
| 74f0fb50 AM |
6415 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6416 | ||
| 6417 | static void | |
| 6418 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6419 | { | |
| 6420 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6421 | struct bfd_sym_chain *sym; | |
| 6422 | ||
| 4dfe6ac6 NC |
6423 | if (htab == NULL) |
| 6424 | return; | |
| 6425 | ||
| 74f0fb50 AM |
6426 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6427 | { | |
| b31867b6 | 6428 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6429 | asection *sec; |
| 6430 | ||
| 6431 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6432 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6433 | if (eh == NULL) |
| 6434 | continue; | |
| 6435 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6436 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6437 | continue; | |
| 6438 | ||
| b31867b6 AM |
6439 | fh = defined_code_entry (eh); |
| 6440 | if (fh != NULL) | |
| 74f0fb50 | 6441 | { |
| b31867b6 | 6442 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6443 | sec->flags |= SEC_KEEP; |
| 6444 | } | |
| 6445 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6446 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6447 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6448 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6449 | sec->flags |= SEC_KEEP; |
| 6450 | ||
| 6451 | sec = eh->elf.root.u.def.section; | |
| 6452 | sec->flags |= SEC_KEEP; | |
| 6453 | } | |
| 6454 | } | |
| 6455 | ||
| 64d03ab5 AM |
6456 | /* Mark sections containing dynamically referenced symbols. When |
| 6457 | building shared libraries, we must assume that any visible symbol is | |
| 6458 | referenced. */ | |
| 6459 | ||
| 6460 | static bfd_boolean | |
| 6461 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6462 | { | |
| 6463 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6464 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6465 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6466 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6467 | |
| 64d03ab5 | 6468 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6469 | fdh = defined_func_desc (eh); |
| 6470 | if (fdh != NULL) | |
| 6471 | eh = fdh; | |
| 64d03ab5 AM |
6472 | |
| 6473 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6474 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 87e79a65 | 6475 | && ((eh->elf.ref_dynamic && !eh->elf.forced_local) |
| 1c9177d9 | 6476 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6477 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6478 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6479 | && (!bfd_link_executable (info) |
| e278ae05 | 6480 | || info->gc_keep_exported |
| b407645f AM |
6481 | || info->export_dynamic |
| 6482 | || (eh->elf.dynamic | |
| 6483 | && d != NULL | |
| 6484 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6485 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6486 | || !bfd_hide_sym_by_version (info->version_info, |
| 6487 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6488 | { |
| 6489 | asection *code_sec; | |
| b31867b6 | 6490 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6491 | |
| 6492 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6493 | ||
| 6494 | /* Function descriptor syms cause the associated | |
| 6495 | function code sym section to be marked. */ | |
| b31867b6 AM |
6496 | fh = defined_code_entry (eh); |
| 6497 | if (fh != NULL) | |
| 6498 | { | |
| 6499 | code_sec = fh->elf.root.u.def.section; | |
| 6500 | code_sec->flags |= SEC_KEEP; | |
| 6501 | } | |
| 64d03ab5 AM |
6502 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6503 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6504 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6505 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6506 | code_sec->flags |= SEC_KEEP; |
| 6507 | } | |
| 6508 | ||
| 6509 | return TRUE; | |
| 6510 | } | |
| 6511 | ||
| 5bd4f169 AM |
6512 | /* Return the section that should be marked against GC for a given |
| 6513 | relocation. */ | |
| 6514 | ||
| 6515 | static asection * | |
| 4ce794b7 | 6516 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6517 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6518 | Elf_Internal_Rela *rel, |
| 6519 | struct elf_link_hash_entry *h, | |
| 6520 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6521 | { |
| ccfa59ea AM |
6522 | asection *rsec; |
| 6523 | ||
| ccfa59ea AM |
6524 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6525 | function sections, as all functions are referenced in .opd. */ | |
| 6526 | rsec = NULL; | |
| 6527 | if (get_opd_info (sec) != NULL) | |
| 6528 | return rsec; | |
| 1e2f5b6e | 6529 | |
| 5bd4f169 AM |
6530 | if (h != NULL) |
| 6531 | { | |
| 04c9666a | 6532 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6533 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6534 | |
| 4ce794b7 | 6535 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6536 | switch (r_type) |
| 5bd4f169 AM |
6537 | { |
| 6538 | case R_PPC64_GNU_VTINHERIT: | |
| 6539 | case R_PPC64_GNU_VTENTRY: | |
| 6540 | break; | |
| 6541 | ||
| 6542 | default: | |
| 6543 | switch (h->root.type) | |
| 6544 | { | |
| 6545 | case bfd_link_hash_defined: | |
| 6546 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6547 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6548 | fdh = defined_func_desc (eh); |
| 6549 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6550 | { |
| 6551 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6552 | a call reloc. Mark the function descriptor too | |
| 6553 | against garbage collection. */ | |
| 6554 | fdh->elf.mark = 1; | |
| 60d67dc8 AM |
6555 | if (fdh->elf.is_weakalias) |
| 6556 | weakdef (&fdh->elf)->mark = 1; | |
| 8c5b4e52 AM |
6557 | eh = fdh; |
| 6558 | } | |
| 1e2f5b6e AM |
6559 | |
| 6560 | /* Function descriptor syms cause the associated | |
| 6561 | function code sym section to be marked. */ | |
| b31867b6 AM |
6562 | fh = defined_code_entry (eh); |
| 6563 | if (fh != NULL) | |
| ccfa59ea AM |
6564 | { |
| 6565 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6566 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6567 | |
| b31867b6 | 6568 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6569 | } |
| 8387904d AM |
6570 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6571 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6572 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6573 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6574 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6575 | else |
| 1e2f5b6e AM |
6576 | rsec = h->root.u.def.section; |
| 6577 | break; | |
| 5bd4f169 AM |
6578 | |
| 6579 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6580 | rsec = h->root.u.c.p->section; |
| 6581 | break; | |
| 5bd4f169 AM |
6582 | |
| 6583 | default: | |
| fb34365b | 6584 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6585 | } |
| 6586 | } | |
| 6587 | } | |
| 6588 | else | |
| 6589 | { | |
| 74f0fb50 | 6590 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6591 | |
| 6592 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6593 | opd = get_opd_info (rsec); |
| 6594 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6595 | { |
| 74f0fb50 | 6596 | rsec->gc_mark = 1; |
| ccfa59ea | 6597 | |
| 51aecdc5 | 6598 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6599 | } |
| 5bd4f169 AM |
6600 | } |
| 6601 | ||
| 1e2f5b6e | 6602 | return rsec; |
| 5bd4f169 AM |
6603 | } |
| 6604 | ||
| deb0e272 AM |
6605 | /* The maximum size of .sfpr. */ |
| 6606 | #define SFPR_MAX (218*4) | |
| 6607 | ||
| 6608 | struct sfpr_def_parms | |
| 6609 | { | |
| 699733f6 AM |
6610 | const char name[12]; |
| 6611 | unsigned char lo, hi; | |
| deb0e272 AM |
6612 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6613 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6614 | }; | |
| 6615 | ||
| a4b6fadd AM |
6616 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6617 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6618 | instead. */ | |
| deb0e272 | 6619 | |
| 4dfe6ac6 | 6620 | static bfd_boolean |
| a4b6fadd AM |
6621 | sfpr_define (struct bfd_link_info *info, |
| 6622 | const struct sfpr_def_parms *parm, | |
| 6623 | asection *stub_sec) | |
| deb0e272 AM |
6624 | { |
| 6625 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6626 | unsigned int i; | |
| 6627 | size_t len = strlen (parm->name); | |
| 6628 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6629 | char sym[16]; |
| deb0e272 | 6630 | |
| 4dfe6ac6 NC |
6631 | if (htab == NULL) |
| 6632 | return FALSE; | |
| 6633 | ||
| deb0e272 AM |
6634 | memcpy (sym, parm->name, len); |
| 6635 | sym[len + 2] = 0; | |
| 6636 | ||
| 6637 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6638 | { | |
| a4b6fadd | 6639 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6640 | |
| 6641 | sym[len + 0] = i / 10 + '0'; | |
| 6642 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6643 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6644 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6645 | if (stub_sec != NULL) |
| deb0e272 | 6646 | { |
| a4b6fadd AM |
6647 | if (h != NULL |
| 6648 | && h->elf.root.type == bfd_link_hash_defined | |
| 6649 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6650 | { | |
| 6651 | struct elf_link_hash_entry *s; | |
| 6652 | char buf[32]; | |
| 6653 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6654 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6655 | if (s == NULL) | |
| 6656 | return FALSE; | |
| 6657 | if (s->root.type == bfd_link_hash_new | |
| 6658 | || (s->root.type = bfd_link_hash_defined | |
| 6659 | && s->root.u.def.section == stub_sec)) | |
| 6660 | { | |
| 6661 | s->root.type = bfd_link_hash_defined; | |
| 6662 | s->root.u.def.section = stub_sec; | |
| 6663 | s->root.u.def.value = (stub_sec->size | |
| 6664 | + h->elf.root.u.def.value); | |
| 6665 | s->ref_regular = 1; | |
| 6666 | s->def_regular = 1; | |
| 6667 | s->ref_regular_nonweak = 1; | |
| 6668 | s->forced_local = 1; | |
| 6669 | s->non_elf = 0; | |
| 6670 | s->root.linker_def = 1; | |
| 6671 | } | |
| 6672 | } | |
| 6673 | continue; | |
| 6674 | } | |
| 6675 | if (h != NULL) | |
| 6676 | { | |
| 6677 | h->save_res = 1; | |
| 6678 | if (!h->elf.def_regular) | |
| deb0e272 | 6679 | { |
| a4b6fadd AM |
6680 | h->elf.root.type = bfd_link_hash_defined; |
| 6681 | h->elf.root.u.def.section = htab->sfpr; | |
| 6682 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6683 | h->elf.type = STT_FUNC; | |
| 6684 | h->elf.def_regular = 1; | |
| b32547cd | 6685 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6686 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6687 | writing = TRUE; | |
| deb0e272 | 6688 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6689 | { |
| 6690 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6691 | if (htab->sfpr->contents == NULL) | |
| 6692 | return FALSE; | |
| 6693 | } | |
| deb0e272 AM |
6694 | } |
| 6695 | } | |
| 6696 | if (writing) | |
| 6697 | { | |
| 6698 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6699 | if (i != parm->hi) | |
| 6700 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6701 | else | |
| 6702 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6703 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6704 | } | |
| 6705 | } | |
| 6706 | ||
| 6707 | return TRUE; | |
| 6708 | } | |
| 6709 | ||
| 6710 | static bfd_byte * | |
| 6711 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6712 | { | |
| 6713 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6714 | return p + 4; | |
| 6715 | } | |
| 6716 | ||
| 6717 | static bfd_byte * | |
| 6718 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6719 | { | |
| 6720 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6721 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6722 | p = p + 4; |
| 6723 | bfd_put_32 (abfd, BLR, p); | |
| 6724 | return p + 4; | |
| 6725 | } | |
| 6726 | ||
| 6727 | static bfd_byte * | |
| 6728 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6729 | { | |
| 6730 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6731 | return p + 4; | |
| 6732 | } | |
| 6733 | ||
| 6734 | static bfd_byte * | |
| 6735 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6736 | { | |
| a078d95a | 6737 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6738 | p = p + 4; |
| 6739 | p = restgpr0 (abfd, p, r); | |
| 6740 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6741 | p = p + 4; | |
| 6742 | if (r == 29) | |
| 6743 | { | |
| 6744 | p = restgpr0 (abfd, p, 30); | |
| 6745 | p = restgpr0 (abfd, p, 31); | |
| 6746 | } | |
| 6747 | bfd_put_32 (abfd, BLR, p); | |
| 6748 | return p + 4; | |
| 6749 | } | |
| 6750 | ||
| 6751 | static bfd_byte * | |
| 6752 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6753 | { | |
| 6754 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6755 | return p + 4; | |
| 6756 | } | |
| 6757 | ||
| 6758 | static bfd_byte * | |
| 6759 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6760 | { | |
| 6761 | p = savegpr1 (abfd, p, r); | |
| 6762 | bfd_put_32 (abfd, BLR, p); | |
| 6763 | return p + 4; | |
| 6764 | } | |
| 6765 | ||
| 6766 | static bfd_byte * | |
| 6767 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6768 | { | |
| 6769 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6770 | return p + 4; | |
| 6771 | } | |
| 6772 | ||
| 6773 | static bfd_byte * | |
| 6774 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6775 | { | |
| 6776 | p = restgpr1 (abfd, p, r); | |
| 6777 | bfd_put_32 (abfd, BLR, p); | |
| 6778 | return p + 4; | |
| 6779 | } | |
| 6780 | ||
| 6781 | static bfd_byte * | |
| 6782 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6783 | { | |
| 6784 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6785 | return p + 4; | |
| 6786 | } | |
| 6787 | ||
| 6788 | static bfd_byte * | |
| 6789 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6790 | { | |
| 6791 | p = savefpr (abfd, p, r); | |
| a078d95a | 6792 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6793 | p = p + 4; |
| 6794 | bfd_put_32 (abfd, BLR, p); | |
| 6795 | return p + 4; | |
| 6796 | } | |
| 6797 | ||
| 6798 | static bfd_byte * | |
| 6799 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6800 | { | |
| 6801 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6802 | return p + 4; | |
| 6803 | } | |
| 6804 | ||
| 6805 | static bfd_byte * | |
| 6806 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6807 | { | |
| a078d95a | 6808 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6809 | p = p + 4; |
| 6810 | p = restfpr (abfd, p, r); | |
| 6811 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6812 | p = p + 4; | |
| 6813 | if (r == 29) | |
| 6814 | { | |
| 6815 | p = restfpr (abfd, p, 30); | |
| 6816 | p = restfpr (abfd, p, 31); | |
| 6817 | } | |
| 6818 | bfd_put_32 (abfd, BLR, p); | |
| 6819 | return p + 4; | |
| 6820 | } | |
| 6821 | ||
| 6822 | static bfd_byte * | |
| 6823 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6824 | { | |
| 6825 | p = savefpr (abfd, p, r); | |
| 6826 | bfd_put_32 (abfd, BLR, p); | |
| 6827 | return p + 4; | |
| 6828 | } | |
| 6829 | ||
| 6830 | static bfd_byte * | |
| 6831 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6832 | { | |
| 6833 | p = restfpr (abfd, p, r); | |
| 6834 | bfd_put_32 (abfd, BLR, p); | |
| 6835 | return p + 4; | |
| 6836 | } | |
| 6837 | ||
| 6838 | static bfd_byte * | |
| 6839 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6840 | { | |
| 6841 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6842 | p = p + 4; | |
| 6843 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6844 | return p + 4; | |
| 6845 | } | |
| 6846 | ||
| 6847 | static bfd_byte * | |
| 6848 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6849 | { | |
| 6850 | p = savevr (abfd, p, r); | |
| 6851 | bfd_put_32 (abfd, BLR, p); | |
| 6852 | return p + 4; | |
| 6853 | } | |
| 6854 | ||
| 6855 | static bfd_byte * | |
| 6856 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6857 | { | |
| 6858 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6859 | p = p + 4; | |
| 6860 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6861 | return p + 4; | |
| 6862 | } | |
| 6863 | ||
| 6864 | static bfd_byte * | |
| 6865 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6866 | { | |
| 6867 | p = restvr (abfd, p, r); | |
| 6868 | bfd_put_32 (abfd, BLR, p); | |
| 6869 | return p + 4; | |
| 6870 | } | |
| 6871 | ||
| e86ce104 AM |
6872 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6873 | information on function code symbol entries to their corresponding | |
| 6874 | function descriptor symbol entries. */ | |
| deb0e272 | 6875 | |
| b34976b6 | 6876 | static bfd_boolean |
| 4ce794b7 | 6877 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6878 | { |
| e86ce104 | 6879 | struct bfd_link_info *info; |
| 65f38f15 | 6880 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6881 | struct ppc_link_hash_entry *fh; |
| 6882 | struct ppc_link_hash_entry *fdh; | |
| 6883 | bfd_boolean force_local; | |
| 5bd4f169 | 6884 | |
| 50bc7936 AM |
6885 | fh = (struct ppc_link_hash_entry *) h; |
| 6886 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6887 | return TRUE; |
| e86ce104 | 6888 | |
| 8c5b4e52 AM |
6889 | if (!fh->is_func) |
| 6890 | return TRUE; | |
| 6891 | ||
| 6892 | if (fh->elf.root.root.string[0] != '.' | |
| 6893 | || fh->elf.root.root.string[1] == '\0') | |
| 6894 | return TRUE; | |
| 6895 | ||
| 4ce794b7 | 6896 | info = inf; |
| 65f38f15 | 6897 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6898 | if (htab == NULL) |
| 6899 | return FALSE; | |
| 5bd4f169 | 6900 | |
| 8c5b4e52 AM |
6901 | /* Find the corresponding function descriptor symbol. */ |
| 6902 | fdh = lookup_fdh (fh, htab); | |
| 6903 | ||
| c09bdfe5 AM |
6904 | /* Resolve undefined references to dot-symbols as the value |
| 6905 | in the function descriptor, if we have one in a regular object. | |
| 6906 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6907 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
6908 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 6909 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 6910 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 6911 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
6912 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 6913 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6914 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6915 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6916 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6917 | { |
| b31867b6 | 6918 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6919 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6920 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6921 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6922 | } |
| 6923 | ||
| 8c5b4e52 AM |
6924 | if (!fh->elf.dynamic) |
| 6925 | { | |
| 6926 | struct plt_entry *ent; | |
| 5bd4f169 | 6927 | |
| 8c5b4e52 AM |
6928 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 6929 | if (ent->plt.refcount > 0) | |
| 6930 | break; | |
| 6931 | if (ent == NULL) | |
| 6932 | return TRUE; | |
| 6933 | } | |
| 5bd4f169 | 6934 | |
| 8c5b4e52 | 6935 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 6936 | if (fdh == NULL |
| 0e1862bb | 6937 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6938 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6939 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6940 | { | |
| 908b32fc | 6941 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6942 | if (fdh == NULL) |
| 6943 | return FALSE; | |
| 50bc7936 | 6944 | } |
| 648cca2c | 6945 | |
| 8c5b4e52 | 6946 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
6947 | if (fdh != NULL |
| 6948 | && fdh->fake | |
| 8c5b4e52 AM |
6949 | && (fh->elf.root.type == bfd_link_hash_defined |
| 6950 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 6951 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 6952 | |
| 8c5b4e52 AM |
6953 | /* Transfer dynamic linking information to the function descriptor. */ |
| 6954 | if (fdh != NULL) | |
| 6955 | { | |
| f5385ebf AM |
6956 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6957 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6958 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6959 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
6960 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 6961 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 6962 | || fh->elf.type == STT_FUNC | |
| 6963 | || fh->elf.type == STT_GNU_IFUNC); | |
| 6964 | move_plt_plist (fh, fdh); | |
| 6965 | ||
| 6966 | if (!fdh->elf.forced_local | |
| 6967 | && fh->elf.dynindx != -1) | |
| 6968 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 6969 | return FALSE; | |
| e86ce104 AM |
6970 | } |
| 6971 | ||
| 50bc7936 AM |
6972 | /* Now that the info is on the function descriptor, clear the |
| 6973 | function code sym info. Any function code syms for which we | |
| 6974 | don't have a definition in a regular file, we force local. | |
| 6975 | This prevents a shared library from exporting syms that have | |
| 6976 | been imported from another library. Function code syms that | |
| 6977 | are really in the library we must leave global to prevent the | |
| 6978 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
6979 | force_local = (!fh->elf.def_regular |
| 6980 | || fdh == NULL | |
| 6981 | || !fdh->elf.def_regular | |
| 6982 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
6983 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 6984 | ||
| b34976b6 | 6985 | return TRUE; |
| e86ce104 | 6986 | } |
| 40b8271b | 6987 | |
| a4b6fadd AM |
6988 | static const struct sfpr_def_parms save_res_funcs[] = |
| 6989 | { | |
| 6990 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 6991 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 6992 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 6993 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 6994 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 6995 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 6996 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 6997 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 6998 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 6999 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7000 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7001 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7002 | }; | |
| 7003 | ||
| e86ce104 | 7004 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7005 | this hook to a) provide some gcc support functions, and b) transfer |
| 7006 | dynamic linking information gathered so far on function code symbol | |
| 7007 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7008 | |
| b34976b6 | 7009 | static bfd_boolean |
| 4ce794b7 AM |
7010 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7011 | struct bfd_link_info *info) | |
| e86ce104 AM |
7012 | { |
| 7013 | struct ppc_link_hash_table *htab; | |
| 7014 | ||
| 7015 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7016 | if (htab == NULL) |
| 7017 | return FALSE; | |
| 7018 | ||
| b32547cd AM |
7019 | /* Provide any missing _save* and _rest* functions. */ |
| 7020 | if (htab->sfpr != NULL) | |
| 7021 | { | |
| 7022 | unsigned int i; | |
| 7023 | ||
| 7024 | htab->sfpr->size = 0; | |
| 7025 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7026 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7027 | return FALSE; | |
| 7028 | if (htab->sfpr->size == 0) | |
| 7029 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7030 | } | |
| 7031 | ||
| 7032 | if (bfd_link_relocatable (info)) | |
| 7033 | return TRUE; | |
| 7034 | ||
| 7035 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7036 | { |
| 7037 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7038 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7039 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7040 | if (!htab->elf.hgot->def_regular |
| 7041 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7042 | { | |
| 7043 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7044 | htab->elf.hgot->root.u.def.value = 0; | |
| 7045 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7046 | htab->elf.hgot->def_regular = 1; | |
| 7047 | htab->elf.hgot->root.linker_def = 1; | |
| 7048 | } | |
| dba6fa9b | 7049 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7050 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7051 | | STV_HIDDEN); | |
| 7052 | } | |
| c66bb0ee | 7053 | |
| 8c5b4e52 AM |
7054 | if (htab->need_func_desc_adj) |
| 7055 | { | |
| 7056 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7057 | htab->need_func_desc_adj = 0; | |
| 7058 | } | |
| 805fc799 | 7059 | |
| b34976b6 | 7060 | return TRUE; |
| e86ce104 AM |
7061 | } |
| 7062 | ||
| 98bbb1b8 | 7063 | /* Find dynamic relocs for H that apply to read-only sections. */ |
| a345bc8d | 7064 | |
| 98bbb1b8 | 7065 | static asection * |
| a345bc8d AM |
7066 | readonly_dynrelocs (struct elf_link_hash_entry *h) |
| 7067 | { | |
| 7068 | struct ppc_link_hash_entry *eh; | |
| 7069 | struct elf_dyn_relocs *p; | |
| 7070 | ||
| 7071 | eh = (struct ppc_link_hash_entry *) h; | |
| 7072 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7073 | { | |
| 7074 | asection *s = p->sec->output_section; | |
| 7075 | ||
| 7076 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 98bbb1b8 | 7077 | return p->sec; |
| a345bc8d | 7078 | } |
| 98bbb1b8 | 7079 | return NULL; |
| a345bc8d AM |
7080 | } |
| 7081 | ||
| d311bc8b | 7082 | /* Return true if we have dynamic relocs against H or any of its weak |
| ab2477e1 AM |
7083 | aliases, that apply to read-only sections. Cannot be used after |
| 7084 | size_dynamic_sections. */ | |
| d311bc8b AM |
7085 | |
| 7086 | static bfd_boolean | |
| 7087 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7088 | { | |
| 7089 | struct ppc_link_hash_entry *eh; | |
| 7090 | ||
| 7091 | eh = (struct ppc_link_hash_entry *) h; | |
| 7092 | do | |
| 7093 | { | |
| 7094 | if (readonly_dynrelocs (&eh->elf)) | |
| 7095 | return TRUE; | |
| ab2477e1 | 7096 | eh = (struct ppc_link_hash_entry *) eh->elf.u.alias; |
| d311bc8b AM |
7097 | } while (eh != NULL && &eh->elf != h); |
| 7098 | ||
| 7099 | return FALSE; | |
| 7100 | } | |
| 8a2058b5 | 7101 | |
| 8a9e8e72 AM |
7102 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7103 | ||
| 7104 | static bfd_boolean | |
| 7105 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7106 | { | |
| 7107 | struct elf_dyn_relocs *p; | |
| 7108 | ||
| 7109 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7110 | if (p->pc_count != 0) | |
| 7111 | return TRUE; | |
| 7112 | return FALSE; | |
| 7113 | } | |
| 7114 | ||
| 8a2058b5 AM |
7115 | /* Return true if a global entry stub will be created for H. Valid |
| 7116 | for ELFv2 before plt entries have been allocated. */ | |
| 7117 | ||
| 7118 | static bfd_boolean | |
| 7119 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7120 | { | |
| 7121 | struct plt_entry *pent; | |
| 7122 | ||
| 7123 | if (!h->pointer_equality_needed | |
| 7124 | || h->def_regular) | |
| 7125 | return FALSE; | |
| 7126 | ||
| 7127 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7128 | if (pent->plt.refcount > 0 | |
| 7129 | && pent->addend == 0) | |
| 7130 | return TRUE; | |
| 7131 | ||
| 7132 | return FALSE; | |
| 7133 | } | |
| 7134 | ||
| e86ce104 AM |
7135 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7136 | regular object. The current definition is in some section of the | |
| 7137 | dynamic object, but we're not including those sections. We have to | |
| 7138 | change the definition to something the rest of the link can | |
| 7139 | understand. */ | |
| 7140 | ||
| b34976b6 | 7141 | static bfd_boolean |
| 4ce794b7 AM |
7142 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7143 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7144 | { |
| 7145 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7146 | asection *s, *srel; |
| e86ce104 AM |
7147 | |
| 7148 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7149 | if (htab == NULL) |
| 7150 | return FALSE; | |
| e86ce104 AM |
7151 | |
| 7152 | /* Deal with function syms. */ | |
| 7153 | if (h->type == STT_FUNC | |
| e054468f | 7154 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7155 | || h->needs_plt) |
| e86ce104 | 7156 | { |
| 529fe20e AM |
7157 | bfd_boolean local = (((struct ppc_link_hash_entry *) h)->save_res |
| 7158 | || SYMBOL_CALLS_LOCAL (info, h) | |
| 7159 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)); | |
| 7160 | /* Discard dyn_relocs when non-pic if we've decided that a | |
| 7161 | function symbol is local and not an ifunc. We keep dynamic | |
| 7162 | relocs for ifuncs when local rather than always emitting a | |
| 7163 | plt call stub for them and defining the symbol on the call | |
| 7164 | stub. We can't do that for ELFv1 anyway (a function symbol | |
| 7165 | is defined on a descriptor, not code) and it can be faster at | |
| 7166 | run-time due to not needing to bounce through a stub. The | |
| 7167 | dyn_relocs for ifuncs will be applied even in a static | |
| 7168 | executable. */ | |
| 7169 | if (!bfd_link_pic (info) | |
| 7170 | && h->type != STT_GNU_IFUNC | |
| 7171 | && local) | |
| 7172 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 7173 | ||
| e86ce104 AM |
7174 | /* Clear procedure linkage table information for any symbol that |
| 7175 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7176 | struct plt_entry *ent; |
| 7177 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7178 | if (ent->plt.refcount > 0) | |
| 7179 | break; | |
| 8387904d | 7180 | if (ent == NULL |
| 529fe20e | 7181 | || (h->type != STT_GNU_IFUNC && local)) |
| 40b8271b | 7182 | { |
| 411e1bfb | 7183 | h->plt.plist = NULL; |
| f5385ebf | 7184 | h->needs_plt = 0; |
| d1eca1e4 | 7185 | h->pointer_equality_needed = 0; |
| 40b8271b | 7186 | } |
| 8a2058b5 | 7187 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7188 | { |
| d1eca1e4 AM |
7189 | /* Taking a function's address in a read/write section |
| 7190 | doesn't require us to define the function symbol in the | |
| 7191 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7192 | be used instead. The reason we prefer a few more dynamic |
| 7193 | relocs is that calling via a global entry stub costs a | |
| 7194 | few more instructions, and pointer_equality_needed causes | |
| 7195 | extra work in ld.so when resolving these symbols. */ | |
| 529fe20e | 7196 | if (global_entry_stub (h)) |
| d1eca1e4 | 7197 | { |
| ab2477e1 | 7198 | if (!readonly_dynrelocs (h)) |
| 529fe20e AM |
7199 | { |
| 7200 | h->pointer_equality_needed = 0; | |
| 7201 | /* If we haven't seen a branch reloc then we don't need | |
| 7202 | a plt entry. */ | |
| 7203 | if (!h->needs_plt) | |
| 7204 | h->plt.plist = NULL; | |
| 7205 | } | |
| 7206 | else if (!bfd_link_pic (info)) | |
| 7207 | /* We are going to be defining the function symbol on the | |
| 7208 | plt stub, so no dyn_relocs needed when non-pic. */ | |
| 7209 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| d1eca1e4 AM |
7210 | } |
| 7211 | ||
| 3988aed5 AM |
7212 | /* ELFv2 function symbols can't have copy relocs. */ |
| 7213 | return TRUE; | |
| 7214 | } | |
| 7215 | else if (!h->needs_plt | |
| ab2477e1 | 7216 | && !readonly_dynrelocs (h)) |
| 3988aed5 AM |
7217 | { |
| 7218 | /* If we haven't seen a branch reloc then we don't need a | |
| 7219 | plt entry. */ | |
| 7220 | h->plt.plist = NULL; | |
| 7221 | h->pointer_equality_needed = 0; | |
| a345bc8d AM |
7222 | return TRUE; |
| 7223 | } | |
| 5bd4f169 | 7224 | } |
| bbd7ec4a | 7225 | else |
| 411e1bfb | 7226 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7227 | |
| 7228 | /* If this is a weak symbol, and there is a real definition, the | |
| 7229 | processor independent code will have arranged for us to see the | |
| 7230 | real definition first, and we can just use the same value. */ | |
| 60d67dc8 | 7231 | if (h->is_weakalias) |
| 5bd4f169 | 7232 | { |
| 60d67dc8 AM |
7233 | struct elf_link_hash_entry *def = weakdef (h); |
| 7234 | BFD_ASSERT (def->root.type == bfd_link_hash_defined); | |
| 7235 | h->root.u.def.section = def->root.u.def.section; | |
| 7236 | h->root.u.def.value = def->root.u.def.value; | |
| 4a7e5234 AM |
7237 | if (def->root.u.def.section == htab->elf.sdynbss |
| 7238 | || def->root.u.def.section == htab->elf.sdynrelro) | |
| 7239 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| b34976b6 | 7240 | return TRUE; |
| 5bd4f169 AM |
7241 | } |
| 7242 | ||
| 5bd4f169 AM |
7243 | /* If we are creating a shared library, we must presume that the |
| 7244 | only references to the symbol are via the global offset table. | |
| 7245 | For such cases we need not do anything here; the relocations will | |
| 7246 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7247 | if (bfd_link_pic (info)) |
| b34976b6 | 7248 | return TRUE; |
| 5bd4f169 | 7249 | |
| 65f38f15 AM |
7250 | /* If there are no references to this symbol that do not use the |
| 7251 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7252 | if (!h->non_got_ref) |
| b34976b6 | 7253 | return TRUE; |
| 65f38f15 | 7254 | |
| b186458a | 7255 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7256 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7257 | |
| d93d1c80 AM |
7258 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7259 | || info->nocopyreloc | |
| a127494f | 7260 | |
| dce2246a | 7261 | /* If we don't find any dynamic relocs in read-only sections, then |
| d93d1c80 | 7262 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ |
| d311bc8b | 7263 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7264 | |
| d93d1c80 AM |
7265 | /* Protected variables do not work with .dynbss. The copy in |
| 7266 | .dynbss won't be used by the shared library with the protected | |
| 7267 | definition for the variable. Text relocations are preferable | |
| 7268 | to an incorrect program. */ | |
| 7269 | || h->protected_def) | |
| 529fe20e | 7270 | return TRUE; |
| a127494f | 7271 | |
| 5d35169e | 7272 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7273 | { |
| 7274 | /* We should never get here, but unfortunately there are versions | |
| 7275 | of gcc out there that improperly (for this ABI) put initialized | |
| 7276 | function pointers, vtable refs and suchlike in read-only | |
| 7277 | sections. Allow them to proceed, but warn that this might | |
| 7278 | break at runtime. */ | |
| 25f53a85 | 7279 | info->callbacks->einfo |
| c1c8c1ef | 7280 | (_("%P: copy reloc against `%pT' requires lazy plt linking; " |
| 25f53a85 | 7281 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7282 | h->root.root.string); |
| 7283 | } | |
| 5d35169e AM |
7284 | |
| 7285 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7286 | is not a function. */ | |
| 7287 | ||
| 5bd4f169 AM |
7288 | /* We must allocate the symbol in our .dynbss section, which will |
| 7289 | become part of the .bss section of the executable. There will be | |
| 7290 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7291 | object will contain position independent code, so all references | |
| 7292 | from the dynamic object to this symbol will go through the global | |
| 7293 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7294 | determine the address it must put in the global offset table, so | |
| 7295 | both the dynamic object and the regular object will refer to the | |
| 7296 | same memory location for the variable. */ | |
| 5474d94f AM |
7297 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7298 | { | |
| 7299 | s = htab->elf.sdynrelro; | |
| 7300 | srel = htab->elf.sreldynrelro; | |
| 7301 | } | |
| 7302 | else | |
| 7303 | { | |
| 7304 | s = htab->elf.sdynbss; | |
| 7305 | srel = htab->elf.srelbss; | |
| 7306 | } | |
| 1d7e9d18 | 7307 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7308 | { |
| 4a7e5234 AM |
7309 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic |
| 7310 | linker to copy the initial value out of the dynamic object | |
| 7311 | and into the runtime process image. */ | |
| 5474d94f | 7312 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7313 | h->needs_copy = 1; |
| 5bd4f169 AM |
7314 | } |
| 7315 | ||
| 529fe20e AM |
7316 | /* We no longer want dyn_relocs. */ |
| 7317 | ((struct ppc_link_hash_entry *) h)->dyn_relocs = NULL; | |
| 6cabe1ea | 7318 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7319 | } |
| 7320 | ||
| e86ce104 AM |
7321 | /* If given a function descriptor symbol, hide both the function code |
| 7322 | sym and the descriptor. */ | |
| 7323 | static void | |
| 4ce794b7 AM |
7324 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7325 | struct elf_link_hash_entry *h, | |
| 7326 | bfd_boolean force_local) | |
| e86ce104 | 7327 | { |
| 34814b9f | 7328 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7329 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7330 | ||
| 34814b9f AM |
7331 | eh = (struct ppc_link_hash_entry *) h; |
| 7332 | if (eh->is_func_descriptor) | |
| e86ce104 | 7333 | { |
| 34814b9f | 7334 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7335 | |
| 721956f4 | 7336 | if (fh == NULL) |
| d1329ca3 AM |
7337 | { |
| 7338 | const char *p, *q; | |
| b8ac2841 | 7339 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7340 | char save; |
| 7341 | ||
| 7342 | /* We aren't supposed to use alloca in BFD because on | |
| 7343 | systems which do not have alloca the version in libiberty | |
| 7344 | calls xmalloc, which might cause the program to crash | |
| 7345 | when it runs out of memory. This function doesn't have a | |
| 7346 | return status, so there's no way to gracefully return an | |
| 7347 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7348 | accessed; It's either a string in an ELF string table, |
| 7349 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7350 | |
| 34814b9f | 7351 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7352 | save = *p; |
| 7353 | *(char *) p = '.'; | |
| 34814b9f | 7354 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7355 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7356 | *(char *) p = save; |
| 7357 | ||
| 7358 | /* Unfortunately, if it so happens that the string we were | |
| 7359 | looking for was allocated immediately before this string, | |
| 7360 | then we overwrote the string terminator. That's the only | |
| 7361 | reason the lookup should fail. */ | |
| 7362 | if (fh == NULL) | |
| 7363 | { | |
| 34814b9f AM |
7364 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7365 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7366 | --q, --p; |
| 34814b9f AM |
7367 | if (q < eh->elf.root.root.string && *p == '.') |
| 7368 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7369 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7370 | } |
| 7371 | if (fh != NULL) | |
| 7372 | { | |
| 34814b9f AM |
7373 | eh->oh = fh; |
| 7374 | fh->oh = eh; | |
| d1329ca3 AM |
7375 | } |
| 7376 | } | |
| e86ce104 | 7377 | if (fh != NULL) |
| 34814b9f | 7378 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7379 | } |
| 7380 | } | |
| 7381 | ||
| 411e1bfb | 7382 | static bfd_boolean |
| 8843416a AM |
7383 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7384 | Elf_Internal_Sym **symp, | |
| 7385 | asection **symsecp, | |
| f961d9dd | 7386 | unsigned char **tls_maskp, |
| 8843416a AM |
7387 | Elf_Internal_Sym **locsymsp, |
| 7388 | unsigned long r_symndx, | |
| 7389 | bfd *ibfd) | |
| 411e1bfb | 7390 | { |
| 0ffa91dd | 7391 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7392 | |
| 7393 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7394 | { | |
| 7395 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7396 | struct elf_link_hash_entry *h; | |
| 7397 | ||
| 7398 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7399 | h = elf_follow_link (h); |
| 411e1bfb AM |
7400 | |
| 7401 | if (hp != NULL) | |
| 7402 | *hp = h; | |
| 7403 | ||
| 7404 | if (symp != NULL) | |
| 7405 | *symp = NULL; | |
| 7406 | ||
| 7407 | if (symsecp != NULL) | |
| 7408 | { | |
| 7409 | asection *symsec = NULL; | |
| 7410 | if (h->root.type == bfd_link_hash_defined | |
| 7411 | || h->root.type == bfd_link_hash_defweak) | |
| 7412 | symsec = h->root.u.def.section; | |
| 7413 | *symsecp = symsec; | |
| 7414 | } | |
| 7415 | ||
| e7b938ca | 7416 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7417 | { |
| 7418 | struct ppc_link_hash_entry *eh; | |
| 7419 | ||
| 7420 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7421 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7422 | } |
| 7423 | } | |
| 7424 | else | |
| 7425 | { | |
| 7426 | Elf_Internal_Sym *sym; | |
| 7427 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7428 | ||
| 7429 | if (locsyms == NULL) | |
| 7430 | { | |
| 7431 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7432 | if (locsyms == NULL) | |
| 7433 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7434 | symtab_hdr->sh_info, | |
| 7435 | 0, NULL, NULL, NULL); | |
| 7436 | if (locsyms == NULL) | |
| 7437 | return FALSE; | |
| 7438 | *locsymsp = locsyms; | |
| 7439 | } | |
| 7440 | sym = locsyms + r_symndx; | |
| 7441 | ||
| 7442 | if (hp != NULL) | |
| 7443 | *hp = NULL; | |
| 7444 | ||
| 7445 | if (symp != NULL) | |
| 7446 | *symp = sym; | |
| 7447 | ||
| 7448 | if (symsecp != NULL) | |
| cb33740c | 7449 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7450 | |
| e7b938ca | 7451 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7452 | { |
| 7453 | struct got_entry **lgot_ents; | |
| f961d9dd | 7454 | unsigned char *tls_mask; |
| 411e1bfb | 7455 | |
| e7b938ca | 7456 | tls_mask = NULL; |
| 411e1bfb AM |
7457 | lgot_ents = elf_local_got_ents (ibfd); |
| 7458 | if (lgot_ents != NULL) | |
| 7459 | { | |
| e054468f AM |
7460 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7461 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7462 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7463 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7464 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7465 | } |
| e7b938ca | 7466 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7467 | } |
| 7468 | } | |
| 7469 | return TRUE; | |
| 7470 | } | |
| 7471 | ||
| e7b938ca | 7472 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7473 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7474 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7475 | |
| 7476 | static int | |
| f961d9dd | 7477 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7478 | unsigned long *toc_symndx, |
| 7479 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7480 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7481 | const Elf_Internal_Rela *rel, |
| 7482 | bfd *ibfd) | |
| 411e1bfb AM |
7483 | { |
| 7484 | unsigned long r_symndx; | |
| 0d4792f7 | 7485 | int next_r; |
| 411e1bfb AM |
7486 | struct elf_link_hash_entry *h; |
| 7487 | Elf_Internal_Sym *sym; | |
| 7488 | asection *sec; | |
| 7489 | bfd_vma off; | |
| 7490 | ||
| 7491 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7492 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7493 | return 0; |
| 411e1bfb | 7494 | |
| e7b938ca | 7495 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7496 | || sec == NULL |
| 6bee8834 | 7497 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7498 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7499 | return 1; |
| 411e1bfb AM |
7500 | |
| 7501 | /* Look inside a TOC section too. */ | |
| 7502 | if (h != NULL) | |
| 7503 | { | |
| 7504 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7505 | off = h->root.u.def.value; | |
| 7506 | } | |
| 7507 | else | |
| 7508 | off = sym->st_value; | |
| 7509 | off += rel->r_addend; | |
| 7510 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7511 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7512 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7513 | if (toc_symndx != NULL) |
| 7514 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7515 | if (toc_addend != NULL) |
| 7516 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7517 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7518 | return 0; | |
| 854b41e7 | 7519 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7520 | && (next_r == -1 || next_r == -2)) |
| 7521 | return 1 - next_r; | |
| 951fd09b | 7522 | return 1; |
| 411e1bfb AM |
7523 | } |
| 7524 | ||
| 3b421ab3 AM |
7525 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7526 | ||
| 7527 | static struct tocsave_entry * | |
| 7528 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7529 | enum insert_option insert, | |
| 7530 | Elf_Internal_Sym **local_syms, | |
| 7531 | const Elf_Internal_Rela *irela, | |
| 7532 | bfd *ibfd) | |
| 7533 | { | |
| 7534 | unsigned long r_indx; | |
| 7535 | struct elf_link_hash_entry *h; | |
| 7536 | Elf_Internal_Sym *sym; | |
| 7537 | struct tocsave_entry ent, *p; | |
| 7538 | hashval_t hash; | |
| 7539 | struct tocsave_entry **slot; | |
| 7540 | ||
| 7541 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7542 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7543 | return NULL; | |
| 7544 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7545 | { | |
| 4eca0228 | 7546 | _bfd_error_handler |
| 871b3ab2 | 7547 | (_("%pB: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7548 | return NULL; |
| 7549 | } | |
| 7550 | ||
| 7551 | if (h != NULL) | |
| 7552 | ent.offset = h->root.u.def.value; | |
| 7553 | else | |
| 7554 | ent.offset = sym->st_value; | |
| 7555 | ent.offset += irela->r_addend; | |
| 7556 | ||
| 7557 | hash = tocsave_htab_hash (&ent); | |
| 7558 | slot = ((struct tocsave_entry **) | |
| 7559 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7560 | if (slot == NULL) | |
| 7561 | return NULL; | |
| 7562 | ||
| 7563 | if (*slot == NULL) | |
| 7564 | { | |
| 7565 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7566 | if (p == NULL) | |
| 7567 | return NULL; | |
| 7568 | *p = ent; | |
| 7569 | *slot = p; | |
| 7570 | } | |
| 7571 | return *slot; | |
| 7572 | } | |
| 7573 | ||
| 754021d0 | 7574 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7575 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7576 | |
| 7577 | static bfd_boolean | |
| 7578 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7579 | { | |
| 7580 | struct ppc_link_hash_entry *eh; | |
| 7581 | asection *sym_sec; | |
| 74f0fb50 | 7582 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7583 | |
| 7584 | if (h->root.type == bfd_link_hash_indirect) | |
| 7585 | return TRUE; | |
| 7586 | ||
| 754021d0 AM |
7587 | if (h->root.type != bfd_link_hash_defined |
| 7588 | && h->root.type != bfd_link_hash_defweak) | |
| 7589 | return TRUE; | |
| 7590 | ||
| 7591 | eh = (struct ppc_link_hash_entry *) h; | |
| 7592 | if (eh->adjust_done) | |
| 7593 | return TRUE; | |
| 7594 | ||
| 7595 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7596 | opd = get_opd_info (sym_sec); |
| 7597 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7598 | { |
| 51aecdc5 | 7599 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7600 | if (adjust == -1) |
| 7601 | { | |
| 7602 | /* This entry has been deleted. */ | |
| b3fac117 | 7603 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7604 | if (dsec == NULL) |
| 7605 | { | |
| 7606 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7607 | if (discarded_section (dsec)) |
| 81688140 | 7608 | { |
| b3fac117 | 7609 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7610 | break; |
| 7611 | } | |
| 7612 | } | |
| 4025353c | 7613 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7614 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7615 | } |
| 7616 | else | |
| 7617 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7618 | eh->adjust_done = 1; |
| 7619 | } | |
| 7620 | return TRUE; | |
| 7621 | } | |
| 7622 | ||
| 8c1d1bb8 | 7623 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7624 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7625 | have already been determined. */ |
| 7626 | ||
| 7627 | static bfd_boolean | |
| 7628 | dec_dynrel_count (bfd_vma r_info, | |
| 7629 | asection *sec, | |
| 7630 | struct bfd_link_info *info, | |
| 7631 | Elf_Internal_Sym **local_syms, | |
| 7632 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7633 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7634 | { |
| 7635 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7636 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7637 | |
| 7638 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7639 | should be kept in sync with the code in check_relocs. */ | |
| 7640 | r_type = ELF64_R_TYPE (r_info); | |
| 7641 | switch (r_type) | |
| 7642 | { | |
| 7643 | default: | |
| 7644 | return TRUE; | |
| 7645 | ||
| 7646 | case R_PPC64_TPREL16: | |
| 7647 | case R_PPC64_TPREL16_LO: | |
| 7648 | case R_PPC64_TPREL16_HI: | |
| 7649 | case R_PPC64_TPREL16_HA: | |
| 7650 | case R_PPC64_TPREL16_DS: | |
| 7651 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7652 | case R_PPC64_TPREL16_HIGH: |
| 7653 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7654 | case R_PPC64_TPREL16_HIGHER: |
| 7655 | case R_PPC64_TPREL16_HIGHERA: | |
| 7656 | case R_PPC64_TPREL16_HIGHEST: | |
| 7657 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7658 | case R_PPC64_TPREL64: |
| 7659 | case R_PPC64_DTPMOD64: | |
| 7660 | case R_PPC64_DTPREL64: | |
| 7661 | case R_PPC64_ADDR64: | |
| 7662 | case R_PPC64_REL30: | |
| 7663 | case R_PPC64_REL32: | |
| 7664 | case R_PPC64_REL64: | |
| 7665 | case R_PPC64_ADDR14: | |
| 7666 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7667 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7668 | case R_PPC64_ADDR16: | |
| 7669 | case R_PPC64_ADDR16_DS: | |
| 7670 | case R_PPC64_ADDR16_HA: | |
| 7671 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7672 | case R_PPC64_ADDR16_HIGH: |
| 7673 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7674 | case R_PPC64_ADDR16_HIGHER: |
| 7675 | case R_PPC64_ADDR16_HIGHERA: | |
| 7676 | case R_PPC64_ADDR16_HIGHEST: | |
| 7677 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7678 | case R_PPC64_ADDR16_LO: | |
| 7679 | case R_PPC64_ADDR16_LO_DS: | |
| 7680 | case R_PPC64_ADDR24: | |
| 7681 | case R_PPC64_ADDR32: | |
| 7682 | case R_PPC64_UADDR16: | |
| 7683 | case R_PPC64_UADDR32: | |
| 7684 | case R_PPC64_UADDR64: | |
| 7685 | case R_PPC64_TOC: | |
| 7686 | break; | |
| 7687 | } | |
| 7688 | ||
| 7689 | if (local_syms != NULL) | |
| 7690 | { | |
| 7691 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7692 | bfd *ibfd = sec->owner; |
| 7693 | ||
| 7694 | r_symndx = ELF64_R_SYM (r_info); | |
| 7695 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7696 | return FALSE; | |
| 7697 | } | |
| 7698 | ||
| 0e1862bb | 7699 | if ((bfd_link_pic (info) |
| 1d483afe | 7700 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7701 | || (h != NULL |
| 198f1157 | 7702 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7703 | || h->root.type == bfd_link_hash_defweak |
| 7704 | || !h->def_regular)))) | |
| 7705 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7706 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7707 | && h != NULL |
| 7708 | && (h->root.type == bfd_link_hash_defweak | |
| 7709 | || !h->def_regular))) | |
| 7710 | ; | |
| 7711 | else | |
| 7712 | return TRUE; | |
| 7713 | ||
| 7714 | if (h != NULL) | |
| 6edfbbad | 7715 | { |
| 19e08130 AM |
7716 | struct elf_dyn_relocs *p; |
| 7717 | struct elf_dyn_relocs **pp; | |
| 7718 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7719 | ||
| 7720 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7721 | with local syms for a given section. Also, symbol flags are | |
| 7722 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7723 | report a dynreloc miscount. */ | |
| 7724 | if (*pp == NULL && info->gc_sections) | |
| 7725 | return TRUE; | |
| 7726 | ||
| 7727 | while ((p = *pp) != NULL) | |
| 60124e18 | 7728 | { |
| 19e08130 AM |
7729 | if (p->sec == sec) |
| 7730 | { | |
| 7731 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7732 | p->pc_count -= 1; | |
| 7733 | p->count -= 1; | |
| 7734 | if (p->count == 0) | |
| 7735 | *pp = p->next; | |
| 7736 | return TRUE; | |
| 7737 | } | |
| 7738 | pp = &p->next; | |
| 60124e18 | 7739 | } |
| 6edfbbad | 7740 | } |
| 19e08130 AM |
7741 | else |
| 7742 | { | |
| 7743 | struct ppc_dyn_relocs *p; | |
| 7744 | struct ppc_dyn_relocs **pp; | |
| 7745 | void *vpp; | |
| 7746 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7747 | |
| 19e08130 AM |
7748 | if (local_syms == NULL) |
| 7749 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7750 | if (sym_sec == NULL) | |
| 7751 | sym_sec = sec; | |
| c57da1a7 | 7752 | |
| 19e08130 AM |
7753 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7754 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7755 | ||
| 7756 | if (*pp == NULL && info->gc_sections) | |
| 7757 | return TRUE; | |
| 7758 | ||
| 7759 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7760 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7761 | { |
| 19e08130 AM |
7762 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7763 | { | |
| 7764 | p->count -= 1; | |
| 7765 | if (p->count == 0) | |
| 7766 | *pp = p->next; | |
| 7767 | return TRUE; | |
| 7768 | } | |
| 7769 | pp = &p->next; | |
| 8c1d1bb8 | 7770 | } |
| 8c1d1bb8 AM |
7771 | } |
| 7772 | ||
| 695344c0 | 7773 | /* xgettext:c-format */ |
| cf97bcb0 AM |
7774 | _bfd_error_handler (_("dynreloc miscount for %pB, section %pA"), |
| 7775 | sec->owner, sec); | |
| 8c1d1bb8 AM |
7776 | bfd_set_error (bfd_error_bad_value); |
| 7777 | return FALSE; | |
| 7778 | } | |
| 7779 | ||
| 754021d0 AM |
7780 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7781 | only remove those associated with functions in discarded link-once | |
| 7782 | sections, or weakly defined functions that have been overridden. It | |
| 7783 | would be possible to remove many more entries for statically linked | |
| 7784 | applications. */ | |
| 7785 | ||
| b34976b6 | 7786 | bfd_boolean |
| e7d1c40c | 7787 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7788 | { |
| 7789 | bfd *ibfd; | |
| 754021d0 | 7790 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7791 | asection *need_pad = NULL; |
| e7d1c40c AM |
7792 | struct ppc_link_hash_table *htab; |
| 7793 | ||
| 7794 | htab = ppc_hash_table (info); | |
| 7795 | if (htab == NULL) | |
| 7796 | return FALSE; | |
| 1e2f5b6e | 7797 | |
| c72f2fb2 | 7798 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7799 | { |
| 7800 | asection *sec; | |
| 7801 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7802 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7803 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7804 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7805 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7806 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7807 | |
| 854b41e7 AM |
7808 | if (!is_ppc64_elf (ibfd)) |
| 7809 | continue; | |
| 7810 | ||
| 1e2f5b6e | 7811 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7812 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7813 | continue; |
| 7814 | ||
| dbaa2011 | 7815 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7816 | continue; |
| 7817 | ||
| 1e2f5b6e AM |
7818 | if (sec->output_section == bfd_abs_section_ptr) |
| 7819 | continue; | |
| 7820 | ||
| 7821 | /* Look through the section relocs. */ | |
| 7822 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7823 | continue; | |
| 7824 | ||
| 6cdc0ccc | 7825 | local_syms = NULL; |
| 0ffa91dd | 7826 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7827 | |
| 7828 | /* Read the relocations. */ | |
| 4ce794b7 | 7829 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7830 | info->keep_memory); |
| 1e2f5b6e | 7831 | if (relstart == NULL) |
| b34976b6 | 7832 | return FALSE; |
| 1e2f5b6e AM |
7833 | |
| 7834 | /* First run through the relocs to check they are sane, and to | |
| 7835 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7836 | need_edit = FALSE; |
| 51aecdc5 | 7837 | broken = FALSE; |
| 3f764659 | 7838 | need_pad = sec; |
| 1e2f5b6e | 7839 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7840 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7841 | { |
| 04c9666a | 7842 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7843 | unsigned long r_symndx; |
| 7844 | asection *sym_sec; | |
| 7845 | struct elf_link_hash_entry *h; | |
| 7846 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7847 | bfd_vma offset; |
| 1e2f5b6e | 7848 | |
| 51aecdc5 | 7849 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7850 | only interested in the reloc pointing to a function entry |
| 7851 | point. */ | |
| 51aecdc5 AM |
7852 | offset = rel->r_offset; |
| 7853 | if (rel + 1 == relend | |
| 7854 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7855 | { |
| 7856 | /* If someone messes with .opd alignment then after a | |
| 7857 | "ld -r" we might have padding in the middle of .opd. | |
| 7858 | Also, there's nothing to prevent someone putting | |
| 7859 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7860 | optimization for them! */ |
| 3f764659 | 7861 | broken_opd: |
| 4eca0228 | 7862 | _bfd_error_handler |
| 871b3ab2 | 7863 | (_("%pB: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7864 | broken = TRUE; |
| 1e2f5b6e AM |
7865 | break; |
| 7866 | } | |
| 7867 | ||
| 50bc7936 AM |
7868 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7869 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7870 | { | |
| 4eca0228 | 7871 | _bfd_error_handler |
| 695344c0 | 7872 | /* xgettext:c-format */ |
| 871b3ab2 | 7873 | (_("%pB: unexpected reloc type %u in .opd section"), |
| d003868e | 7874 | ibfd, r_type); |
| 51aecdc5 | 7875 | broken = TRUE; |
| 50bc7936 AM |
7876 | break; |
| 7877 | } | |
| 7878 | ||
| 1e2f5b6e | 7879 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7880 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7881 | r_symndx, ibfd)) | |
| 50bc7936 | 7882 | goto error_ret; |
| 1e2f5b6e AM |
7883 | |
| 7884 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7885 | { | |
| 411e1bfb AM |
7886 | const char *sym_name; |
| 7887 | if (h != NULL) | |
| 7888 | sym_name = h->root.root.string; | |
| 7889 | else | |
| 26c61ae5 L |
7890 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7891 | sym_sec); | |
| 411e1bfb | 7892 | |
| 4eca0228 | 7893 | _bfd_error_handler |
| 695344c0 | 7894 | /* xgettext:c-format */ |
| 871b3ab2 | 7895 | (_("%pB: undefined sym `%s' in .opd section"), |
| d003868e | 7896 | ibfd, sym_name); |
| 51aecdc5 | 7897 | broken = TRUE; |
| 1e2f5b6e AM |
7898 | break; |
| 7899 | } | |
| 7900 | ||
| 51020317 AM |
7901 | /* opd entries are always for functions defined in the |
| 7902 | current input bfd. If the symbol isn't defined in the | |
| 7903 | input bfd, then we won't be using the function in this | |
| 7904 | bfd; It must be defined in a linkonce section in another | |
| 7905 | bfd, or is weak. It's also possible that we are | |
| 7906 | discarding the function due to a linker script /DISCARD/, | |
| 7907 | which we test for via the output_section. */ | |
| 7908 | if (sym_sec->owner != ibfd | |
| 7909 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7910 | need_edit = TRUE; |
| 1e2f5b6e | 7911 | |
| 50bc7936 | 7912 | rel += 2; |
| 51aecdc5 AM |
7913 | if (rel + 1 == relend |
| 7914 | || (rel + 2 < relend | |
| 7915 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7916 | ++rel; | |
| 7917 | ||
| 7918 | if (rel == relend) | |
| 3f764659 JJ |
7919 | { |
| 7920 | if (sec->size == offset + 24) | |
| 7921 | { | |
| 7922 | need_pad = NULL; | |
| 7923 | break; | |
| 7924 | } | |
| 51aecdc5 | 7925 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7926 | { |
| 7927 | cnt_16b++; | |
| 7928 | break; | |
| 7929 | } | |
| 7930 | goto broken_opd; | |
| 7931 | } | |
| 3f764659 JJ |
7932 | else if (rel + 1 < relend |
| 7933 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7934 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7935 | { | |
| 51aecdc5 AM |
7936 | if (rel[0].r_offset == offset + 16) |
| 7937 | cnt_16b++; | |
| 7938 | else if (rel[0].r_offset != offset + 24) | |
| 7939 | goto broken_opd; | |
| 3f764659 JJ |
7940 | } |
| 7941 | else | |
| 7942 | goto broken_opd; | |
| 1e2f5b6e AM |
7943 | } |
| 7944 | ||
| e7d1c40c | 7945 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7946 | |
| 51aecdc5 | 7947 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7948 | { |
| 7949 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7950 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7951 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7952 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7953 | bfd_size_type amt; |
| 7954 | ||
| 983bddc8 | 7955 | new_contents = NULL; |
| 51aecdc5 | 7956 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7957 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7958 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7959 | if (opd->adjust == NULL) |
| 7960 | return FALSE; | |
| 1e2f5b6e AM |
7961 | |
| 7962 | /* This seems a waste of time as input .opd sections are all | |
| 7963 | zeros as generated by gcc, but I suppose there's no reason | |
| 7964 | this will always be so. We might start putting something in | |
| 7965 | the third word of .opd entries. */ | |
| 7966 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7967 | { | |
| eea6121a AM |
7968 | bfd_byte *loc; |
| 7969 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7970 | { |
| eea6121a AM |
7971 | if (loc != NULL) |
| 7972 | free (loc); | |
| 50bc7936 | 7973 | error_ret: |
| 6cdc0ccc AM |
7974 | if (local_syms != NULL |
| 7975 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7976 | free (local_syms); | |
| 6cdc0ccc AM |
7977 | if (elf_section_data (sec)->relocs != relstart) |
| 7978 | free (relstart); | |
| b34976b6 | 7979 | return FALSE; |
| 6cdc0ccc | 7980 | } |
| 1e2f5b6e AM |
7981 | sec->contents = loc; |
| 7982 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7983 | } | |
| 7984 | ||
| 7985 | elf_section_data (sec)->relocs = relstart; | |
| 7986 | ||
| 3f764659 | 7987 | new_contents = sec->contents; |
| 3f764659 JJ |
7988 | if (add_aux_fields) |
| 7989 | { | |
| 7990 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7991 | if (new_contents == NULL) | |
| 7992 | return FALSE; | |
| 51aecdc5 | 7993 | need_pad = NULL; |
| 3f764659 | 7994 | } |
| b4f4e59f AM |
7995 | wptr = new_contents; |
| 7996 | rptr = sec->contents; | |
| 1e2f5b6e | 7997 | write_rel = relstart; |
| 51aecdc5 | 7998 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7999 | { |
| 50bc7936 AM |
8000 | unsigned long r_symndx; |
| 8001 | asection *sym_sec; | |
| 8002 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8003 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8004 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8005 | long opd_ent_size; |
| 8006 | Elf_Internal_Rela *next_rel; | |
| 8007 | bfd_boolean skip; | |
| 50bc7936 AM |
8008 | |
| 8009 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8010 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8011 | r_symndx, ibfd)) |
| 50bc7936 AM |
8012 | goto error_ret; |
| 8013 | ||
| 51aecdc5 AM |
8014 | next_rel = rel + 2; |
| 8015 | if (next_rel + 1 == relend | |
| 8016 | || (next_rel + 2 < relend | |
| 8017 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8018 | ++next_rel; | |
| 8019 | ||
| 8020 | /* See if the .opd entry is full 24 byte or | |
| 8021 | 16 byte (with fd_aux entry overlapped with next | |
| 8022 | fd_func). */ | |
| 8023 | opd_ent_size = 24; | |
| 8024 | if (next_rel == relend) | |
| 1e2f5b6e | 8025 | { |
| 51aecdc5 | 8026 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8027 | opd_ent_size = 16; |
| 51aecdc5 AM |
8028 | } |
| 8029 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8030 | opd_ent_size = 16; | |
| 3f764659 | 8031 | |
| 51aecdc5 AM |
8032 | if (h != NULL |
| 8033 | && h->root.root.string[0] == '.') | |
| 8034 | { | |
| 8c5b4e52 AM |
8035 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8036 | if (fdh != NULL) | |
| 8037 | { | |
| 8038 | fdh = ppc_follow_link (fdh); | |
| 8039 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8040 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8041 | fdh = NULL; | |
| 8042 | } | |
| 51aecdc5 | 8043 | } |
| 1e2f5b6e | 8044 | |
| 51aecdc5 AM |
8045 | skip = (sym_sec->owner != ibfd |
| 8046 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8047 | if (skip) | |
| 8048 | { | |
| 8049 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8050 | { |
| 51aecdc5 AM |
8051 | /* Arrange for the function descriptor sym |
| 8052 | to be dropped. */ | |
| 8053 | fdh->elf.root.u.def.value = 0; | |
| 8054 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8055 | } |
| 51aecdc5 | 8056 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8057 | |
| 0e1862bb | 8058 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8059 | rel = next_rel; |
| 8060 | else | |
| 8061 | while (1) | |
| 8062 | { | |
| 8063 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8064 | NULL, h, sym)) | |
| 8065 | goto error_ret; | |
| 754021d0 | 8066 | |
| 51aecdc5 AM |
8067 | if (++rel == next_rel) |
| 8068 | break; | |
| 1e2f5b6e | 8069 | |
| 51aecdc5 AM |
8070 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8071 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8072 | r_symndx, ibfd)) | |
| 8073 | goto error_ret; | |
| 8074 | } | |
| 50bc7936 AM |
8075 | } |
| 8076 | else | |
| 1e2f5b6e | 8077 | { |
| 51aecdc5 AM |
8078 | /* We'll be keeping this opd entry. */ |
| 8079 | long adjust; | |
| 8080 | ||
| 8081 | if (fdh != NULL) | |
| 8082 | { | |
| 8083 | /* Redefine the function descriptor symbol to | |
| 8084 | this location in the opd section. It is | |
| 8085 | necessary to update the value here rather | |
| 8086 | than using an array of adjustments as we do | |
| 8087 | for local symbols, because various places | |
| 8088 | in the generic ELF code use the value | |
| 8089 | stored in u.def.value. */ | |
| 8090 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8091 | fdh->adjust_done = 1; | |
| 8092 | } | |
| 8093 | ||
| 8094 | /* Local syms are a bit tricky. We could | |
| 8095 | tweak them as they can be cached, but | |
| 8096 | we'd need to look through the local syms | |
| 8097 | for the function descriptor sym which we | |
| 8098 | don't have at the moment. So keep an | |
| 8099 | array of adjustments. */ | |
| 8100 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8101 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8102 | ||
| 8103 | if (wptr != rptr) | |
| 8104 | memcpy (wptr, rptr, opd_ent_size); | |
| 8105 | wptr += opd_ent_size; | |
| 8106 | if (add_aux_fields && opd_ent_size == 16) | |
| 8107 | { | |
| 8108 | memset (wptr, '\0', 8); | |
| 8109 | wptr += 8; | |
| 8110 | } | |
| 8111 | ||
| 50bc7936 | 8112 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8113 | new opd entries. */ |
| 8114 | for ( ; rel != next_rel; ++rel) | |
| 8115 | { | |
| 8116 | rel->r_offset += adjust; | |
| 8117 | if (write_rel != rel) | |
| 8118 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8119 | ++write_rel; | |
| 8120 | } | |
| 1e2f5b6e | 8121 | } |
| 51aecdc5 AM |
8122 | |
| 8123 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8124 | } |
| 8125 | ||
| 3f764659 | 8126 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8127 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8128 | if (add_aux_fields) |
| 8129 | { | |
| 8130 | free (sec->contents); | |
| 8131 | sec->contents = new_contents; | |
| 8132 | } | |
| 8133 | ||
| 05bf9422 | 8134 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8135 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8136 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8137 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8138 | some_edited = TRUE; |
| 1e2f5b6e | 8139 | } |
| 6cdc0ccc | 8140 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8141 | free (relstart); |
| 6cdc0ccc | 8142 | |
| 411e1bfb AM |
8143 | if (local_syms != NULL |
| 8144 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8145 | { | |
| 8146 | if (!info->keep_memory) | |
| 8147 | free (local_syms); | |
| 8148 | else | |
| 8149 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8150 | } | |
| 8151 | } | |
| 8152 | ||
| 754021d0 AM |
8153 | if (some_edited) |
| 8154 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8155 | ||
| 3f764659 JJ |
8156 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8157 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8158 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8159 | { |
| 8160 | bfd_byte *p; | |
| 8161 | ||
| 8162 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8163 | { | |
| 8164 | BFD_ASSERT (need_pad->size > 0); | |
| 8165 | ||
| 8166 | p = bfd_malloc (need_pad->size + 8); | |
| 8167 | if (p == NULL) | |
| 8168 | return FALSE; | |
| 699733f6 | 8169 | |
| 3f764659 JJ |
8170 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8171 | p, 0, need_pad->size)) | |
| 8172 | return FALSE; | |
| 8173 | ||
| 8174 | need_pad->contents = p; | |
| 8175 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8176 | } | |
| 8177 | else | |
| 8178 | { | |
| 8179 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8180 | if (p == NULL) | |
| 8181 | return FALSE; | |
| 8182 | ||
| 8183 | need_pad->contents = p; | |
| 8184 | } | |
| 8185 | ||
| 8186 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8187 | need_pad->size += 8; | |
| 8188 | } | |
| 8189 | ||
| 411e1bfb AM |
8190 | return TRUE; |
| 8191 | } | |
| 8192 | ||
| e1918d23 | 8193 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8194 | |
| e1918d23 | 8195 | asection * |
| e7d1c40c | 8196 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8197 | { |
| 411e1bfb AM |
8198 | struct ppc_link_hash_table *htab; |
| 8199 | ||
| 411e1bfb | 8200 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8201 | if (htab == NULL) |
| 8202 | return NULL; | |
| 8203 | ||
| ee67d69a AM |
8204 | if (abiversion (info->output_bfd) == 1) |
| 8205 | htab->opd_abi = 1; | |
| 8206 | ||
| e7d1c40c | 8207 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8208 | htab->do_multi_toc = 0; |
| 8209 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8210 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8211 | |
| 8b5f1ed8 AM |
8212 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8213 | with symbol interposition. For example, glibc libpthread.so and | |
| 8214 | libc.so duplicate many pthread symbols, with a fallback | |
| 8215 | implementation in libc.so. In some cases the fallback does more | |
| 8216 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8217 | is one such symbol: the libpthread.so implementation is | |
| 8218 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8219 | An app that "cleverly" uses dlopen to only load necessary | |
| 8220 | libraries at runtime may omit loading libpthread.so when not | |
| 8221 | running multi-threaded, which then results in the libc.so | |
| 8222 | fallback symbols being used and ld.so complaining. Now there | |
| 8223 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8224 | pthread situation, but that may not be the only case where | |
| 8225 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8226 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8227 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8228 | if (htab->params->plt_localentry0 |
| 8229 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8230 | FALSE, FALSE, FALSE) == NULL) | |
| cf97bcb0 AM |
8231 | _bfd_error_handler |
| 8232 | (_("warning: --plt-localentry is especially dangerous without " | |
| 8233 | "ld.so support to detect ABI violations")); | |
| f378ab09 | 8234 | |
| 3a71aa26 AM |
8235 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8236 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8237 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8238 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8239 | if (htab->tls_get_addr != NULL) | |
| 8240 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8241 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8242 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8243 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8244 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8245 | { |
| 8246 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8247 | ||
| 8248 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8249 | FALSE, FALSE, TRUE); | |
| 8250 | if (opt != NULL) | |
| 8251 | func_desc_adjust (opt, info); | |
| 8252 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8253 | FALSE, FALSE, TRUE); | |
| 8254 | if (opt_fd != NULL | |
| 8255 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8256 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8257 | { | |
| 8258 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8259 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8260 | be calling __tls_get_addr via a plt call stub, then | |
| 8261 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8262 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8263 | if (htab->elf.dynamic_sections_created | |
| 8264 | && tga_fd != NULL | |
| 8265 | && (tga_fd->type == STT_FUNC | |
| 8266 | || tga_fd->needs_plt) | |
| 8267 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8268 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8269 | { |
| 8270 | struct plt_entry *ent; | |
| 8271 | ||
| 8272 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8273 | if (ent->plt.refcount > 0) | |
| 8274 | break; | |
| 8275 | if (ent != NULL) | |
| 8276 | { | |
| 8277 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8278 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8279 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8280 | opt_fd->mark = 1; |
| a7f2871e AM |
8281 | if (opt_fd->dynindx != -1) |
| 8282 | { | |
| 8283 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8284 | opt_fd->dynindx = -1; | |
| 8285 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8286 | opt_fd->dynstr_index); | |
| 8287 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8288 | return NULL; |
| a7f2871e AM |
8289 | } |
| 8290 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8291 | tga = &htab->tls_get_addr->elf; | |
| 8292 | if (opt != NULL && tga != NULL) | |
| 8293 | { | |
| 8294 | tga->root.type = bfd_link_hash_indirect; | |
| 8295 | tga->root.u.i.link = &opt->root; | |
| 8296 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8297 | opt->mark = 1; |
| a7f2871e AM |
8298 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8299 | tga->forced_local); | |
| 8300 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8301 | } | |
| 8302 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8303 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8304 | if (htab->tls_get_addr != NULL) | |
| 8305 | { | |
| 8306 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8307 | htab->tls_get_addr->is_func = 1; | |
| 8308 | } | |
| 8309 | } | |
| 8310 | } | |
| 8311 | } | |
| 7c9cf415 AM |
8312 | else if (htab->params->tls_get_addr_opt < 0) |
| 8313 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8314 | } |
| 33c0ec9d | 8315 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8316 | } |
| 8387904d | 8317 | |
| 3a71aa26 AM |
8318 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8319 | HASH1 or HASH2. */ | |
| 8387904d | 8320 | |
| 3a71aa26 AM |
8321 | static bfd_boolean |
| 8322 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8323 | const Elf_Internal_Rela *rel, | |
| 8324 | const struct ppc_link_hash_entry *hash1, | |
| 8325 | const struct ppc_link_hash_entry *hash2) | |
| 8326 | { | |
| 8327 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8328 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8329 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8330 | ||
| e054468f | 8331 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8332 | { |
| 3a71aa26 AM |
8333 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8334 | struct elf_link_hash_entry *h; | |
| 8387904d | 8335 | |
| 3a71aa26 | 8336 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8337 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8338 | if (h == &hash1->elf || h == &hash2->elf) |
| 8339 | return TRUE; | |
| a48ebf4d | 8340 | } |
| 3a71aa26 | 8341 | return FALSE; |
| 951fd09b | 8342 | } |
| 411e1bfb | 8343 | |
| 951fd09b AM |
8344 | /* Run through all the TLS relocs looking for optimization |
| 8345 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8346 | a preliminary section layout so that we know the TLS segment | |
| 8347 | offsets. We can't optimize earlier because some optimizations need | |
| 8348 | to know the tp offset, and we need to optimize before allocating | |
| 8349 | dynamic relocations. */ | |
| 8350 | ||
| 8351 | bfd_boolean | |
| 33c0ec9d | 8352 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8353 | { |
| 8354 | bfd *ibfd; | |
| 8355 | asection *sec; | |
| 8356 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8357 | unsigned char *toc_ref; |
| 102890f0 | 8358 | int pass; |
| 951fd09b | 8359 | |
| 3cbc1e5e | 8360 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8361 | return TRUE; |
| 8362 | ||
| 951fd09b | 8363 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8364 | if (htab == NULL) |
| 8365 | return FALSE; | |
| 8366 | ||
| 663a1470 AM |
8367 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8368 | entries involved with tls relocs, and check that tls relocs | |
| 8369 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8370 | such a call. If they are not, we can't do any tls optimization. | |
| 8371 | On the second pass twiddle tls_mask flags to notify | |
| 8372 | relocate_section that optimization can be done, and adjust got | |
| 8373 | and plt refcounts. */ | |
| 8374 | toc_ref = NULL; | |
| 8375 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8376 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8377 | { |
| 8378 | Elf_Internal_Sym *locsyms = NULL; | |
| 8379 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8380 | ||
| 102890f0 AM |
8381 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8382 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8383 | { | |
| 8384 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8385 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8386 | |
| 102890f0 AM |
8387 | /* Read the relocations. */ |
| 8388 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8389 | info->keep_memory); | |
| 8390 | if (relstart == NULL) | |
| 2915c55b JK |
8391 | { |
| 8392 | free (toc_ref); | |
| 8393 | return FALSE; | |
| 8394 | } | |
| 411e1bfb | 8395 | |
| 102890f0 AM |
8396 | relend = relstart + sec->reloc_count; |
| 8397 | for (rel = relstart; rel < relend; rel++) | |
| 8398 | { | |
| 8399 | enum elf_ppc64_reloc_type r_type; | |
| 8400 | unsigned long r_symndx; | |
| 8401 | struct elf_link_hash_entry *h; | |
| 8402 | Elf_Internal_Sym *sym; | |
| 8403 | asection *sym_sec; | |
| f961d9dd AM |
8404 | unsigned char *tls_mask; |
| 8405 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8406 | bfd_vma value; |
| 8407 | bfd_boolean ok_tprel, is_local; | |
| 8408 | long toc_ref_index = 0; | |
| 8409 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8410 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8411 | |
| 102890f0 AM |
8412 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8413 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8414 | r_symndx, ibfd)) | |
| 8415 | { | |
| 8416 | err_free_rel: | |
| 8417 | if (elf_section_data (sec)->relocs != relstart) | |
| 8418 | free (relstart); | |
| 8419 | if (toc_ref != NULL) | |
| 8420 | free (toc_ref); | |
| 8421 | if (locsyms != NULL | |
| 0ffa91dd | 8422 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8423 | != (unsigned char *) locsyms)) |
| 8424 | free (locsyms); | |
| 663a1470 | 8425 | return ret; |
| 102890f0 | 8426 | } |
| 411e1bfb | 8427 | |
| 102890f0 AM |
8428 | if (h != NULL) |
| 8429 | { | |
| 766bc656 AM |
8430 | if (h->root.type == bfd_link_hash_defined |
| 8431 | || h->root.type == bfd_link_hash_defweak) | |
| 8432 | value = h->root.u.def.value; | |
| 8433 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8434 | value = 0; | |
| 8435 | else | |
| 663a1470 AM |
8436 | { |
| 8437 | found_tls_get_addr_arg = 0; | |
| 8438 | continue; | |
| 8439 | } | |
| 102890f0 AM |
8440 | } |
| 8441 | else | |
| 8442 | /* Symbols referenced by TLS relocs must be of type | |
| 8443 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8444 | value = sym->st_value; | |
| 8445 | ||
| 8446 | ok_tprel = FALSE; | |
| 8447 | is_local = FALSE; | |
| 8448 | if (h == NULL | |
| 8449 | || !h->def_dynamic) | |
| 8450 | { | |
| 8451 | is_local = TRUE; | |
| 766bc656 AM |
8452 | if (h != NULL |
| 8453 | && h->root.type == bfd_link_hash_undefweak) | |
| 8454 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8455 | else if (sym_sec != NULL |
| 8456 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8457 | { |
| 8458 | value += sym_sec->output_offset; | |
| 8459 | value += sym_sec->output_section->vma; | |
| 8460 | value -= htab->elf.tls_sec->vma; | |
| 8461 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8462 | < (bfd_vma) 1 << 32); | |
| 8463 | } | |
| 102890f0 | 8464 | } |
| 951fd09b | 8465 | |
| 102890f0 | 8466 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8467 | /* If this section has old-style __tls_get_addr calls |
| 8468 | without marker relocs, then check that each | |
| 8469 | __tls_get_addr call reloc is preceded by a reloc | |
| 8470 | that conceivably belongs to the __tls_get_addr arg | |
| 8471 | setup insn. If we don't find matching arg setup | |
| 8472 | relocs, don't do any tls optimization. */ | |
| 8473 | if (pass == 0 | |
| 8474 | && sec->has_tls_get_addr_call | |
| 8475 | && h != NULL | |
| 8476 | && (h == &htab->tls_get_addr->elf | |
| 8477 | || h == &htab->tls_get_addr_fd->elf) | |
| 8478 | && !found_tls_get_addr_arg | |
| 8479 | && is_branch_reloc (r_type)) | |
| 8480 | { | |
| 25f53a85 | 8481 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8482 | "TLS optimization disabled\n"), |
| 8483 | ibfd, sec, rel->r_offset); | |
| 8484 | ret = TRUE; | |
| 8485 | goto err_free_rel; | |
| 8486 | } | |
| 8487 | ||
| 8488 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8489 | switch (r_type) |
| 8490 | { | |
| 8491 | case R_PPC64_GOT_TLSLD16: | |
| 8492 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8493 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8494 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8495 | /* Fall through. */ |
| 102890f0 AM |
8496 | |
| 8497 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8498 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8499 | /* These relocs should never be against a symbol | |
| 8500 | defined in a shared lib. Leave them alone if | |
| 8501 | that turns out to be the case. */ | |
| 8502 | if (!is_local) | |
| 8503 | continue; | |
| 411e1bfb | 8504 | |
| 102890f0 | 8505 | /* LD -> LE */ |
| 411e1bfb | 8506 | tls_set = 0; |
| 102890f0 AM |
8507 | tls_clear = TLS_LD; |
| 8508 | tls_type = TLS_TLS | TLS_LD; | |
| 8509 | break; | |
| 411e1bfb | 8510 | |
| 102890f0 AM |
8511 | case R_PPC64_GOT_TLSGD16: |
| 8512 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8513 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8514 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8515 | /* Fall through. */ |
| 102890f0 AM |
8516 | |
| 8517 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8518 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8519 | if (ok_tprel) | |
| 8520 | /* GD -> LE */ | |
| 411e1bfb | 8521 | tls_set = 0; |
| 102890f0 AM |
8522 | else |
| 8523 | /* GD -> IE */ | |
| 8524 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8525 | tls_clear = TLS_GD; | |
| 8526 | tls_type = TLS_TLS | TLS_GD; | |
| 8527 | break; | |
| 8528 | ||
| 8529 | case R_PPC64_GOT_TPREL16_DS: | |
| 8530 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8531 | case R_PPC64_GOT_TPREL16_HI: | |
| 8532 | case R_PPC64_GOT_TPREL16_HA: | |
| 8533 | if (ok_tprel) | |
| 8534 | { | |
| 8535 | /* IE -> LE */ | |
| 8536 | tls_set = 0; | |
| 8537 | tls_clear = TLS_TPREL; | |
| 8538 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8539 | break; | |
| 8540 | } | |
| 411e1bfb AM |
8541 | continue; |
| 8542 | ||
| 727fc41e AM |
8543 | case R_PPC64_TLSGD: |
| 8544 | case R_PPC64_TLSLD: | |
| 663a1470 | 8545 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8546 | /* Fall through. */ |
| 663a1470 AM |
8547 | |
| 8548 | case R_PPC64_TLS: | |
| 8549 | case R_PPC64_TOC16: | |
| 8550 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8551 | if (sym_sec == NULL || sym_sec != toc) |
| 8552 | continue; | |
| 8553 | ||
| 8554 | /* Mark this toc entry as referenced by a TLS | |
| 8555 | code sequence. We can do that now in the | |
| 8556 | case of R_PPC64_TLS, and after checking for | |
| 8557 | tls_get_addr for the TOC16 relocs. */ | |
| 8558 | if (toc_ref == NULL) | |
| 663a1470 AM |
8559 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8560 | if (toc_ref == NULL) | |
| 8561 | goto err_free_rel; | |
| 8562 | ||
| 102890f0 AM |
8563 | if (h != NULL) |
| 8564 | value = h->root.u.def.value; | |
| 8565 | else | |
| 8566 | value = sym->st_value; | |
| 8567 | value += rel->r_addend; | |
| 73242275 AM |
8568 | if (value % 8 != 0) |
| 8569 | continue; | |
| 8570 | BFD_ASSERT (value < toc->size | |
| 8571 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8572 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8573 | if (r_type == R_PPC64_TLS |
| 8574 | || r_type == R_PPC64_TLSGD | |
| 8575 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8576 | { |
| 8577 | toc_ref[toc_ref_index] = 1; | |
| 8578 | continue; | |
| 8579 | } | |
| 8580 | ||
| 8581 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8582 | continue; | |
| 8583 | ||
| 8584 | tls_set = 0; | |
| 8585 | tls_clear = 0; | |
| 8586 | expecting_tls_get_addr = 2; | |
| 8587 | break; | |
| 8588 | ||
| 8589 | case R_PPC64_TPREL64: | |
| 8590 | if (pass == 0 | |
| 8591 | || sec != toc | |
| 8592 | || toc_ref == NULL | |
| 663a1470 | 8593 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8594 | continue; |
| 8595 | if (ok_tprel) | |
| 8596 | { | |
| 8597 | /* IE -> LE */ | |
| 8598 | tls_set = TLS_EXPLICIT; | |
| 8599 | tls_clear = TLS_TPREL; | |
| 8600 | break; | |
| 8601 | } | |
| 8602 | continue; | |
| 8603 | ||
| 8604 | case R_PPC64_DTPMOD64: | |
| 8605 | if (pass == 0 | |
| 8606 | || sec != toc | |
| 8607 | || toc_ref == NULL | |
| 663a1470 | 8608 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8609 | continue; |
| 8610 | if (rel + 1 < relend | |
| 8611 | && (rel[1].r_info | |
| 8612 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8613 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8614 | { | |
| 8615 | if (ok_tprel) | |
| 8616 | /* GD -> LE */ | |
| 8617 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8618 | else | |
| 8619 | /* GD -> IE */ | |
| 8620 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8621 | tls_clear = TLS_GD; | |
| 8622 | } | |
| 8623 | else | |
| 8624 | { | |
| 8625 | if (!is_local) | |
| 8626 | continue; | |
| 8627 | ||
| 8628 | /* LD -> LE */ | |
| 8629 | tls_set = TLS_EXPLICIT; | |
| 8630 | tls_clear = TLS_LD; | |
| 8631 | } | |
| 8632 | break; | |
| 8633 | ||
| 8634 | default: | |
| 8635 | continue; | |
| 8636 | } | |
| 8637 | ||
| 8638 | if (pass == 0) | |
| 8639 | { | |
| 727fc41e AM |
8640 | if (!expecting_tls_get_addr |
| 8641 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8642 | continue; |
| 8643 | ||
| 3a71aa26 AM |
8644 | if (rel + 1 < relend |
| 8645 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8646 | htab->tls_get_addr, | |
| 8647 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8648 | { |
| 3a71aa26 | 8649 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8650 | { |
| 3a71aa26 | 8651 | /* Check for toc tls entries. */ |
| f961d9dd | 8652 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8653 | int retval; |
| 8654 | ||
| 8655 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8656 | &locsyms, | |
| 8657 | rel, ibfd); | |
| 8658 | if (retval == 0) | |
| 8659 | goto err_free_rel; | |
| 663a1470 AM |
8660 | if (toc_tls != NULL) |
| 8661 | { | |
| 8662 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8663 | found_tls_get_addr_arg = 1; | |
| 8664 | if (retval > 1) | |
| 8665 | toc_ref[toc_ref_index] = 1; | |
| 8666 | } | |
| 102890f0 | 8667 | } |
| 3a71aa26 | 8668 | continue; |
| 102890f0 AM |
8669 | } |
| 8670 | ||
| 8671 | if (expecting_tls_get_addr != 1) | |
| 8672 | continue; | |
| 8673 | ||
| 8674 | /* Uh oh, we didn't find the expected call. We | |
| 8675 | could just mark this symbol to exclude it | |
| 8676 | from tls optimization but it's safer to skip | |
| 663a1470 | 8677 | the entire optimization. */ |
| 695344c0 | 8678 | /* xgettext:c-format */ |
| 25f53a85 | 8679 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8680 | "TLS optimization disabled\n"), |
| 8681 | ibfd, sec, rel->r_offset); | |
| 8682 | ret = TRUE; | |
| 8683 | goto err_free_rel; | |
| 102890f0 AM |
8684 | } |
| 8685 | ||
| 85f7a9cb | 8686 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8687 | { |
| 8688 | struct plt_entry *ent; | |
| 8689 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8690 | ent != NULL; | |
| 8691 | ent = ent->next) | |
| 8692 | if (ent->addend == 0) | |
| 411e1bfb | 8693 | { |
| 102890f0 | 8694 | if (ent->plt.refcount > 0) |
| 30038c59 | 8695 | { |
| 102890f0 AM |
8696 | ent->plt.refcount -= 1; |
| 8697 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8698 | } |
| 102890f0 | 8699 | break; |
| 411e1bfb | 8700 | } |
| 102890f0 | 8701 | } |
| 411e1bfb | 8702 | |
| 85f7a9cb | 8703 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8704 | { |
| 8705 | struct plt_entry *ent; | |
| 8706 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8707 | ent != NULL; | |
| 8708 | ent = ent->next) | |
| 8709 | if (ent->addend == 0) | |
| 411e1bfb | 8710 | { |
| 102890f0 AM |
8711 | if (ent->plt.refcount > 0) |
| 8712 | ent->plt.refcount -= 1; | |
| 8713 | break; | |
| 411e1bfb | 8714 | } |
| 102890f0 | 8715 | } |
| 411e1bfb | 8716 | |
| 102890f0 | 8717 | if (tls_clear == 0) |
| 30038c59 AM |
8718 | continue; |
| 8719 | ||
| 102890f0 AM |
8720 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8721 | { | |
| 8722 | struct got_entry *ent; | |
| 411e1bfb | 8723 | |
| 102890f0 AM |
8724 | /* Adjust got entry for this reloc. */ |
| 8725 | if (h != NULL) | |
| 8726 | ent = h->got.glist; | |
| 8727 | else | |
| 8728 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8729 | |
| 102890f0 AM |
8730 | for (; ent != NULL; ent = ent->next) |
| 8731 | if (ent->addend == rel->r_addend | |
| 8732 | && ent->owner == ibfd | |
| 8733 | && ent->tls_type == tls_type) | |
| 8734 | break; | |
| 8735 | if (ent == NULL) | |
| 8736 | abort (); | |
| 411e1bfb | 8737 | |
| 102890f0 AM |
8738 | if (tls_set == 0) |
| 8739 | { | |
| 8740 | /* We managed to get rid of a got entry. */ | |
| 8741 | if (ent->got.refcount > 0) | |
| 8742 | ent->got.refcount -= 1; | |
| 8743 | } | |
| 8744 | } | |
| 8745 | else | |
| 8746 | { | |
| 8747 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8748 | we'll lose one or two dyn relocs. */ | |
| 8749 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8750 | NULL, h, sym)) |
| 102890f0 | 8751 | return FALSE; |
| 411e1bfb | 8752 | |
| 102890f0 AM |
8753 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8754 | { | |
| 8755 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8756 | NULL, h, sym)) |
| 102890f0 AM |
8757 | return FALSE; |
| 8758 | } | |
| 8759 | } | |
| 411e1bfb | 8760 | |
| 102890f0 AM |
8761 | *tls_mask |= tls_set; |
| 8762 | *tls_mask &= ~tls_clear; | |
| 8763 | } | |
| 8c1d1bb8 | 8764 | |
| 102890f0 AM |
8765 | if (elf_section_data (sec)->relocs != relstart) |
| 8766 | free (relstart); | |
| 8767 | } | |
| 411e1bfb | 8768 | |
| 663a1470 AM |
8769 | if (locsyms != NULL |
| 8770 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8771 | { | |
| 8772 | if (!info->keep_memory) | |
| 8773 | free (locsyms); | |
| 8774 | else | |
| 8775 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8776 | } | |
| 8777 | } | |
| 411e1bfb | 8778 | |
| 663a1470 AM |
8779 | if (toc_ref != NULL) |
| 8780 | free (toc_ref); | |
| 9a23f96e | 8781 | htab->do_tls_opt = 1; |
| b34976b6 | 8782 | return TRUE; |
| 1e2f5b6e | 8783 | } |
| b34976b6 | 8784 | |
| c5614fa4 AM |
8785 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8786 | the values of any global symbols in a toc section that has been | |
| 8787 | edited. Globals in toc sections should be a rarity, so this function | |
| 8788 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 8789 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
8790 | |
| 8791 | struct adjust_toc_info | |
| 8792 | { | |
| 8793 | asection *toc; | |
| 8794 | unsigned long *skip; | |
| 8795 | bfd_boolean global_toc_syms; | |
| 8796 | }; | |
| 8797 | ||
| ba761f19 AM |
8798 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8799 | ||
| c5614fa4 AM |
8800 | static bfd_boolean |
| 8801 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8802 | { | |
| 8803 | struct ppc_link_hash_entry *eh; | |
| 8804 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8805 | unsigned long i; |
| c5614fa4 | 8806 | |
| c5614fa4 AM |
8807 | if (h->root.type != bfd_link_hash_defined |
| 8808 | && h->root.type != bfd_link_hash_defweak) | |
| 8809 | return TRUE; | |
| 8810 | ||
| 8811 | eh = (struct ppc_link_hash_entry *) h; | |
| 8812 | if (eh->adjust_done) | |
| 8813 | return TRUE; | |
| 8814 | ||
| 8815 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8816 | { | |
| 854b41e7 AM |
8817 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8818 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8819 | else |
| 854b41e7 AM |
8820 | i = eh->elf.root.u.def.value >> 3; |
| 8821 | ||
| ba761f19 | 8822 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8823 | { |
| 4eca0228 | 8824 | _bfd_error_handler |
| 854b41e7 AM |
8825 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8826 | do | |
| 8827 | ++i; | |
| ba761f19 | 8828 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8829 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8830 | } |
| 854b41e7 AM |
8831 | |
| 8832 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8833 | eh->adjust_done = 1; |
| 8834 | } | |
| 8835 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8836 | toc_inf->global_toc_syms = TRUE; | |
| 8837 | ||
| 8838 | return TRUE; | |
| 8839 | } | |
| 8840 | ||
| 39eeab25 AM |
8841 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8842 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8843 | |
| 8844 | static bfd_boolean | |
| 39eeab25 | 8845 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8846 | { |
| 39eeab25 AM |
8847 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8848 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8849 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8850 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8851 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8852 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8853 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8854 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8855 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8856 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8857 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8858 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8859 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8860 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8861 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8862 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8863 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8864 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8865 | defined for the reduced D field in psq_lu then those | |
| 8866 | will need testing too. */ | |
| 8867 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8868 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8869 | && (insn & 1) == 0) | |
| 8870 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8871 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8872 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8873 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8874 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8875 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8876 | } |
| 8877 | ||
| c5614fa4 AM |
8878 | /* Examine all relocs referencing .toc sections in order to remove |
| 8879 | unused .toc entries. */ | |
| 8880 | ||
| 8881 | bfd_boolean | |
| 33c0ec9d | 8882 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8883 | { |
| 8884 | bfd *ibfd; | |
| 8885 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8886 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8887 | |
| 67f0cbdb | 8888 | htab->do_toc_opt = 1; |
| c5614fa4 | 8889 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8890 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8891 | { |
| 8892 | asection *toc, *sec; | |
| 8893 | Elf_Internal_Shdr *symtab_hdr; | |
| 8894 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8895 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8896 | unsigned long *skip, *drop; |
| 8897 | unsigned char *used; | |
| 8898 | unsigned char *keep, last, some_unused; | |
| 8899 | ||
| 854b41e7 AM |
8900 | if (!is_ppc64_elf (ibfd)) |
| 8901 | continue; | |
| 8902 | ||
| c5614fa4 AM |
8903 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8904 | if (toc == NULL | |
| 92b7a70f | 8905 | || toc->size == 0 |
| dbaa2011 AM |
8906 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8907 | || discarded_section (toc)) | |
| c5614fa4 AM |
8908 | continue; |
| 8909 | ||
| 425b145b | 8910 | toc_relocs = NULL; |
| c5614fa4 | 8911 | local_syms = NULL; |
| 0ffa91dd | 8912 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8913 | |
| 8914 | /* Look at sections dropped from the final link. */ | |
| 8915 | skip = NULL; | |
| 8916 | relstart = NULL; | |
| 8917 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8918 | { | |
| 8919 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8920 | || !discarded_section (sec) |
| c5614fa4 AM |
8921 | || get_opd_info (sec) |
| 8922 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8923 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8924 | continue; | |
| 8925 | ||
| 8926 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8927 | if (relstart == NULL) | |
| 8928 | goto error_ret; | |
| 8929 | ||
| 8930 | /* Run through the relocs to see which toc entries might be | |
| 8931 | unused. */ | |
| 8932 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8933 | { | |
| 8934 | enum elf_ppc64_reloc_type r_type; | |
| 8935 | unsigned long r_symndx; | |
| 8936 | asection *sym_sec; | |
| 8937 | struct elf_link_hash_entry *h; | |
| 8938 | Elf_Internal_Sym *sym; | |
| 8939 | bfd_vma val; | |
| 8940 | ||
| 8941 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8942 | switch (r_type) | |
| 8943 | { | |
| 8944 | default: | |
| 8945 | continue; | |
| 8946 | ||
| 8947 | case R_PPC64_TOC16: | |
| 8948 | case R_PPC64_TOC16_LO: | |
| 8949 | case R_PPC64_TOC16_HI: | |
| 8950 | case R_PPC64_TOC16_HA: | |
| 8951 | case R_PPC64_TOC16_DS: | |
| 8952 | case R_PPC64_TOC16_LO_DS: | |
| 8953 | break; | |
| 8954 | } | |
| 8955 | ||
| 8956 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8957 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8958 | r_symndx, ibfd)) | |
| 8959 | goto error_ret; | |
| 8960 | ||
| 8961 | if (sym_sec != toc) | |
| 8962 | continue; | |
| 8963 | ||
| 8964 | if (h != NULL) | |
| 8965 | val = h->root.u.def.value; | |
| 8966 | else | |
| 8967 | val = sym->st_value; | |
| 8968 | val += rel->r_addend; | |
| 8969 | ||
| 8970 | if (val >= toc->size) | |
| 8971 | continue; | |
| 8972 | ||
| 8973 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8974 | If not, don't mark as unused. */ | |
| 8975 | if (val & 7) | |
| 8976 | continue; | |
| 8977 | ||
| 8978 | if (skip == NULL) | |
| 8979 | { | |
| 854b41e7 | 8980 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8981 | if (skip == NULL) |
| 8982 | goto error_ret; | |
| 8983 | } | |
| 8984 | ||
| ba761f19 | 8985 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8986 | } |
| 8987 | ||
| 8988 | if (elf_section_data (sec)->relocs != relstart) | |
| 8989 | free (relstart); | |
| 8990 | } | |
| 8991 | ||
| ba761f19 AM |
8992 | /* For largetoc loads of address constants, we can convert |
| 8993 | . addis rx,2,addr@got@ha | |
| 8994 | . ld ry,addr@got@l(rx) | |
| 8995 | to | |
| 8996 | . addis rx,2,addr@toc@ha | |
| 8997 | . addi ry,rx,addr@toc@l | |
| 8998 | when addr is within 2G of the toc pointer. This then means | |
| 8999 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9000 | |
| ba761f19 AM |
9001 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9002 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9003 | && toc->reloc_count != 0) | |
| 9004 | { | |
| 9005 | /* Read toc relocs. */ | |
| 425b145b AM |
9006 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9007 | info->keep_memory); | |
| 9008 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9009 | goto error_ret; |
| 9010 | ||
| 425b145b | 9011 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9012 | { |
| 9013 | enum elf_ppc64_reloc_type r_type; | |
| 9014 | unsigned long r_symndx; | |
| 9015 | asection *sym_sec; | |
| 9016 | struct elf_link_hash_entry *h; | |
| 9017 | Elf_Internal_Sym *sym; | |
| 9018 | bfd_vma val, addr; | |
| 9019 | ||
| 9020 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9021 | if (r_type != R_PPC64_ADDR64) | |
| 9022 | continue; | |
| 9023 | ||
| 9024 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9025 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9026 | r_symndx, ibfd)) | |
| 9027 | goto error_ret; | |
| 9028 | ||
| 425b145b | 9029 | if (sym_sec == NULL |
| c27b8c2a | 9030 | || sym_sec->output_section == NULL |
| dbaa2011 | 9031 | || discarded_section (sym_sec)) |
| 425b145b AM |
9032 | continue; |
| 9033 | ||
| afe397ea | 9034 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9035 | continue; |
| 9036 | ||
| 9037 | if (h != NULL) | |
| bddc25c9 AM |
9038 | { |
| 9039 | if (h->type == STT_GNU_IFUNC) | |
| 9040 | continue; | |
| 9041 | val = h->root.u.def.value; | |
| 9042 | } | |
| ba761f19 | 9043 | else |
| bddc25c9 AM |
9044 | { |
| 9045 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9046 | continue; | |
| 9047 | val = sym->st_value; | |
| 9048 | } | |
| ba761f19 AM |
9049 | val += rel->r_addend; |
| 9050 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9051 | ||
| 9052 | /* We don't yet know the exact toc pointer value, but we | |
| 9053 | know it will be somewhere in the toc section. Don't | |
| 9054 | optimize if the difference from any possible toc | |
| 9055 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9056 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9057 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9058 | continue; | |
| 9059 | ||
| 9060 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9061 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9062 | continue; | |
| 9063 | ||
| 9064 | if (skip == NULL) | |
| 9065 | { | |
| 9066 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9067 | if (skip == NULL) | |
| 9068 | goto error_ret; | |
| 9069 | } | |
| 9070 | ||
| 9071 | skip[rel->r_offset >> 3] | |
| 425b145b | 9072 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9073 | } |
| ba761f19 AM |
9074 | } |
| 9075 | ||
| c5614fa4 AM |
9076 | if (skip == NULL) |
| 9077 | continue; | |
| 9078 | ||
| 9079 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9080 | if (used == NULL) | |
| 9081 | { | |
| 9082 | error_ret: | |
| 9083 | if (local_syms != NULL | |
| 9084 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9085 | free (local_syms); | |
| 9086 | if (sec != NULL | |
| 9087 | && relstart != NULL | |
| 9088 | && elf_section_data (sec)->relocs != relstart) | |
| 9089 | free (relstart); | |
| 425b145b AM |
9090 | if (toc_relocs != NULL |
| 9091 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9092 | free (toc_relocs); | |
| c5614fa4 AM |
9093 | if (skip != NULL) |
| 9094 | free (skip); | |
| 9095 | return FALSE; | |
| 9096 | } | |
| 9097 | ||
| 30038c59 AM |
9098 | /* Now check all kept sections that might reference the toc. |
| 9099 | Check the toc itself last. */ | |
| 9100 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9101 | : ibfd->sections); | |
| c5614fa4 | 9102 | sec != NULL; |
| c5614fa4 | 9103 | sec = (sec == toc ? NULL |
| c5614fa4 | 9104 | : sec->next == NULL ? toc |
| 30038c59 | 9105 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9106 | : sec->next)) |
| 9107 | { | |
| 9108 | int repeat; | |
| 9109 | ||
| 9110 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9111 | || discarded_section (sec) |
| c5614fa4 AM |
9112 | || get_opd_info (sec) |
| 9113 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9114 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9115 | continue; | |
| 9116 | ||
| 854b41e7 AM |
9117 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9118 | info->keep_memory); | |
| c5614fa4 | 9119 | if (relstart == NULL) |
| 2915c55b JK |
9120 | { |
| 9121 | free (used); | |
| 9122 | goto error_ret; | |
| 9123 | } | |
| c5614fa4 AM |
9124 | |
| 9125 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9126 | do |
| d4f1ee75 AM |
9127 | { |
| 9128 | repeat = 0; | |
| 9129 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9130 | { | |
| 9131 | enum elf_ppc64_reloc_type r_type; | |
| 9132 | unsigned long r_symndx; | |
| 9133 | asection *sym_sec; | |
| 9134 | struct elf_link_hash_entry *h; | |
| 9135 | Elf_Internal_Sym *sym; | |
| 9136 | bfd_vma val; | |
| 9137 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9138 | |
| d4f1ee75 AM |
9139 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9140 | switch (r_type) | |
| 9141 | { | |
| 9142 | default: | |
| 9143 | insn_check = no_check; | |
| 9144 | break; | |
| 98528052 | 9145 | |
| d4f1ee75 AM |
9146 | case R_PPC64_GOT_TLSLD16_HA: |
| 9147 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9148 | case R_PPC64_GOT_TPREL16_HA: | |
| 9149 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9150 | case R_PPC64_GOT16_HA: | |
| 9151 | case R_PPC64_TOC16_HA: | |
| 9152 | insn_check = check_ha; | |
| 9153 | break; | |
| 98528052 | 9154 | |
| d4f1ee75 AM |
9155 | case R_PPC64_GOT_TLSLD16_LO: |
| 9156 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9157 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9158 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9159 | case R_PPC64_GOT16_LO: | |
| 9160 | case R_PPC64_GOT16_LO_DS: | |
| 9161 | case R_PPC64_TOC16_LO: | |
| 9162 | case R_PPC64_TOC16_LO_DS: | |
| 9163 | insn_check = check_lo; | |
| 9164 | break; | |
| 9165 | } | |
| 560c8763 | 9166 | |
| d4f1ee75 AM |
9167 | if (insn_check != no_check) |
| 9168 | { | |
| 9169 | bfd_vma off = rel->r_offset & ~3; | |
| 9170 | unsigned char buf[4]; | |
| 9171 | unsigned int insn; | |
| c5614fa4 | 9172 | |
| d4f1ee75 AM |
9173 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9174 | { | |
| 9175 | free (used); | |
| 9176 | goto error_ret; | |
| 9177 | } | |
| 9178 | insn = bfd_get_32 (ibfd, buf); | |
| 9179 | if (insn_check == check_lo | |
| 39eeab25 | 9180 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9181 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9182 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9183 | { | |
| 9184 | char str[12]; | |
| 9185 | ||
| 9186 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9187 | sprintf (str, "%#08x", insn); | |
| 9188 | info->callbacks->einfo | |
| 695344c0 | 9189 | /* xgettext:c-format */ |
| 174d0a74 | 9190 | (_("%H: toc optimization is not supported for" |
| cf97bcb0 | 9191 | " %s instruction\n"), |
| d4f1ee75 AM |
9192 | ibfd, sec, rel->r_offset & ~3, str); |
| 9193 | } | |
| 9194 | } | |
| c5614fa4 | 9195 | |
| d4f1ee75 AM |
9196 | switch (r_type) |
| 9197 | { | |
| 9198 | case R_PPC64_TOC16: | |
| 9199 | case R_PPC64_TOC16_LO: | |
| 9200 | case R_PPC64_TOC16_HI: | |
| 9201 | case R_PPC64_TOC16_HA: | |
| 9202 | case R_PPC64_TOC16_DS: | |
| 9203 | case R_PPC64_TOC16_LO_DS: | |
| 9204 | /* In case we're taking addresses of toc entries. */ | |
| 9205 | case R_PPC64_ADDR64: | |
| 9206 | break; | |
| c5614fa4 | 9207 | |
| d4f1ee75 AM |
9208 | default: |
| 9209 | continue; | |
| 9210 | } | |
| c5614fa4 | 9211 | |
| d4f1ee75 AM |
9212 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9213 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9214 | r_symndx, ibfd)) | |
| 9215 | { | |
| 9216 | free (used); | |
| 9217 | goto error_ret; | |
| 9218 | } | |
| c5614fa4 | 9219 | |
| d4f1ee75 AM |
9220 | if (sym_sec != toc) |
| 9221 | continue; | |
| c5614fa4 | 9222 | |
| d4f1ee75 AM |
9223 | if (h != NULL) |
| 9224 | val = h->root.u.def.value; | |
| 9225 | else | |
| 9226 | val = sym->st_value; | |
| 9227 | val += rel->r_addend; | |
| ba761f19 | 9228 | |
| d4f1ee75 AM |
9229 | if (val >= toc->size) |
| 9230 | continue; | |
| ba761f19 | 9231 | |
| d4f1ee75 AM |
9232 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9233 | { | |
| 9234 | bfd_vma off; | |
| 9235 | unsigned char opc; | |
| 9236 | ||
| 9237 | switch (r_type) | |
| 9238 | { | |
| 9239 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9240 | break; |
| ba761f19 | 9241 | |
| d4f1ee75 AM |
9242 | case R_PPC64_TOC16_LO_DS: |
| 9243 | off = rel->r_offset; | |
| 9244 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9245 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9246 | off, 1)) | |
| 9247 | { | |
| 9248 | free (used); | |
| 9249 | goto error_ret; | |
| 9250 | } | |
| 9251 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9252 | break; | |
| 1a0670f3 | 9253 | /* Fall through. */ |
| ba761f19 | 9254 | |
| d4f1ee75 AM |
9255 | default: |
| 9256 | /* Wrong sort of reloc, or not a ld. We may | |
| 9257 | as well clear ref_from_discarded too. */ | |
| 9258 | skip[val >> 3] = 0; | |
| 9259 | } | |
| 9260 | } | |
| 9261 | ||
| 9262 | if (sec != toc) | |
| 9263 | used[val >> 3] = 1; | |
| 9264 | /* For the toc section, we only mark as used if this | |
| 9265 | entry itself isn't unused. */ | |
| 9266 | else if ((used[rel->r_offset >> 3] | |
| 9267 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9268 | && !used[val >> 3]) | |
| 9269 | { | |
| 9270 | /* Do all the relocs again, to catch reference | |
| 9271 | chains. */ | |
| 9272 | repeat = 1; | |
| 9273 | used[val >> 3] = 1; | |
| 9274 | } | |
| 9275 | } | |
| 9276 | } | |
| c5614fa4 | 9277 | while (repeat); |
| 854b41e7 AM |
9278 | |
| 9279 | if (elf_section_data (sec)->relocs != relstart) | |
| 9280 | free (relstart); | |
| c5614fa4 AM |
9281 | } |
| 9282 | ||
| 9283 | /* Merge the used and skip arrays. Assume that TOC | |
| 9284 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9285 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9286 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9287 | drop < skip + (toc->size + 7) / 8; | |
| 9288 | ++drop, ++keep) | |
| 9289 | { | |
| 9290 | if (*keep) | |
| 9291 | { | |
| ba761f19 AM |
9292 | *drop &= ~ref_from_discarded; |
| 9293 | if ((*drop & can_optimize) != 0) | |
| 9294 | some_unused = 1; | |
| c5614fa4 AM |
9295 | last = 0; |
| 9296 | } | |
| b140b010 | 9297 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9298 | { |
| 9299 | some_unused = 1; | |
| ba761f19 | 9300 | last = ref_from_discarded; |
| c5614fa4 AM |
9301 | } |
| 9302 | else | |
| 9303 | *drop = last; | |
| 9304 | } | |
| 9305 | ||
| 9306 | free (used); | |
| 9307 | ||
| 9308 | if (some_unused) | |
| 9309 | { | |
| 9310 | bfd_byte *contents, *src; | |
| 9311 | unsigned long off; | |
| d62b3684 | 9312 | Elf_Internal_Sym *sym; |
| ba761f19 | 9313 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9314 | |
| 9315 | /* Shuffle the toc contents, and at the same time convert the | |
| 9316 | skip array from booleans into offsets. */ | |
| 9317 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9318 | goto error_ret; | |
| 9319 | ||
| 9320 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9321 | ||
| 9322 | for (src = contents, off = 0, drop = skip; | |
| 9323 | src < contents + toc->size; | |
| 9324 | src += 8, ++drop) | |
| 9325 | { | |
| ba761f19 AM |
9326 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9327 | off += 8; | |
| c5614fa4 AM |
9328 | else if (off != 0) |
| 9329 | { | |
| 9330 | *drop = off; | |
| 9331 | memcpy (src - off, src, 8); | |
| 9332 | } | |
| 9333 | } | |
| 854b41e7 | 9334 | *drop = off; |
| c5614fa4 AM |
9335 | toc->rawsize = toc->size; |
| 9336 | toc->size = src - contents - off; | |
| 9337 | ||
| ba761f19 AM |
9338 | /* Adjust addends for relocs against the toc section sym, |
| 9339 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9340 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9341 | { | |
| 9342 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9343 | || discarded_section (sec)) |
| c5614fa4 AM |
9344 | continue; |
| 9345 | ||
| 9346 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9347 | info->keep_memory); |
| c5614fa4 AM |
9348 | if (relstart == NULL) |
| 9349 | goto error_ret; | |
| 9350 | ||
| 9351 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9352 | { | |
| 9353 | enum elf_ppc64_reloc_type r_type; | |
| 9354 | unsigned long r_symndx; | |
| 9355 | asection *sym_sec; | |
| 9356 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9357 | bfd_vma val; |
| c5614fa4 AM |
9358 | |
| 9359 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9360 | switch (r_type) | |
| 9361 | { | |
| 9362 | default: | |
| 9363 | continue; | |
| 9364 | ||
| 9365 | case R_PPC64_TOC16: | |
| 9366 | case R_PPC64_TOC16_LO: | |
| 9367 | case R_PPC64_TOC16_HI: | |
| 9368 | case R_PPC64_TOC16_HA: | |
| 9369 | case R_PPC64_TOC16_DS: | |
| 9370 | case R_PPC64_TOC16_LO_DS: | |
| 9371 | case R_PPC64_ADDR64: | |
| 9372 | break; | |
| 9373 | } | |
| 9374 | ||
| 9375 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9376 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9377 | r_symndx, ibfd)) | |
| 9378 | goto error_ret; | |
| 9379 | ||
| ba761f19 | 9380 | if (sym_sec != toc) |
| c5614fa4 AM |
9381 | continue; |
| 9382 | ||
| ba761f19 AM |
9383 | if (h != NULL) |
| 9384 | val = h->root.u.def.value; | |
| 9385 | else | |
| 9386 | { | |
| 9387 | val = sym->st_value; | |
| 9388 | if (val != 0) | |
| 9389 | local_toc_syms = TRUE; | |
| 9390 | } | |
| 9391 | ||
| 9392 | val += rel->r_addend; | |
| 854b41e7 AM |
9393 | |
| 9394 | if (val > toc->rawsize) | |
| 9395 | val = toc->rawsize; | |
| ba761f19 AM |
9396 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9397 | continue; | |
| 9398 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9399 | { | |
| 9400 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9401 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9402 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9403 | ||
| 9404 | switch (r_type) | |
| 9405 | { | |
| 9406 | case R_PPC64_TOC16_HA: | |
| 9407 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9408 | break; | |
| 9409 | ||
| 9410 | case R_PPC64_TOC16_LO_DS: | |
| 9411 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9412 | break; | |
| 9413 | ||
| 9414 | default: | |
| 28942f62 AM |
9415 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9416 | ppc_howto_init (); | |
| b140b010 | 9417 | info->callbacks->einfo |
| 695344c0 | 9418 | /* xgettext:c-format */ |
| 174d0a74 | 9419 | (_("%H: %s references " |
| b140b010 AM |
9420 | "optimized away TOC entry\n"), |
| 9421 | ibfd, sec, rel->r_offset, | |
| 9422 | ppc64_elf_howto_table[r_type]->name); | |
| 9423 | bfd_set_error (bfd_error_bad_value); | |
| 9424 | goto error_ret; | |
| ba761f19 AM |
9425 | } |
| 9426 | rel->r_addend = tocrel->r_addend; | |
| 9427 | elf_section_data (sec)->relocs = relstart; | |
| 9428 | continue; | |
| 9429 | } | |
| 9430 | ||
| 9431 | if (h != NULL || sym->st_value != 0) | |
| 9432 | continue; | |
| 854b41e7 AM |
9433 | |
| 9434 | rel->r_addend -= skip[val >> 3]; | |
| 9435 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9436 | } |
| 854b41e7 AM |
9437 | |
| 9438 | if (elf_section_data (sec)->relocs != relstart) | |
| 9439 | free (relstart); | |
| c5614fa4 AM |
9440 | } |
| 9441 | ||
| 9442 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9443 | but handle them anyway. */ | |
| df22d223 AM |
9444 | if (local_syms != NULL) |
| 9445 | for (sym = local_syms; | |
| 9446 | sym < local_syms + symtab_hdr->sh_info; | |
| 9447 | ++sym) | |
| 9448 | if (sym->st_value != 0 | |
| 9449 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9450 | { | |
| 9451 | unsigned long i; | |
| 854b41e7 | 9452 | |
| df22d223 AM |
9453 | if (sym->st_value > toc->rawsize) |
| 9454 | i = toc->rawsize >> 3; | |
| 9455 | else | |
| 9456 | i = sym->st_value >> 3; | |
| 854b41e7 | 9457 | |
| df22d223 AM |
9458 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9459 | { | |
| 9460 | if (local_toc_syms) | |
| 4eca0228 | 9461 | _bfd_error_handler |
| df22d223 AM |
9462 | (_("%s defined on removed toc entry"), |
| 9463 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9464 | do | |
| 9465 | ++i; | |
| 9466 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9467 | sym->st_value = (bfd_vma) i << 3; | |
| 9468 | } | |
| d62b3684 | 9469 | |
| df22d223 AM |
9470 | sym->st_value -= skip[i]; |
| 9471 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9472 | } | |
| c5614fa4 | 9473 | |
| 854b41e7 | 9474 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9475 | if (toc_inf.global_toc_syms) |
| 9476 | { | |
| 9477 | toc_inf.toc = toc; | |
| 9478 | toc_inf.skip = skip; | |
| 9479 | toc_inf.global_toc_syms = FALSE; | |
| 9480 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9481 | &toc_inf); | |
| 9482 | } | |
| 854b41e7 AM |
9483 | |
| 9484 | if (toc->reloc_count != 0) | |
| 9485 | { | |
| d4730f92 | 9486 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9487 | Elf_Internal_Rela *wrel; |
| 9488 | bfd_size_type sz; | |
| 9489 | ||
| 854b41e7 | 9490 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9491 | if (toc_relocs == NULL) |
| 9492 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9493 | info->keep_memory); | |
| 9494 | if (toc_relocs == NULL) | |
| 9495 | goto error_ret; | |
| 9496 | ||
| 425b145b AM |
9497 | wrel = toc_relocs; |
| 9498 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9499 | if ((skip[rel->r_offset >> 3] |
| 9500 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9501 | { |
| 9502 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9503 | wrel->r_info = rel->r_info; | |
| 9504 | wrel->r_addend = rel->r_addend; | |
| 9505 | ++wrel; | |
| 9506 | } | |
| 9507 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9508 | &local_syms, NULL, NULL)) | |
| 9509 | goto error_ret; | |
| 9510 | ||
| 425b145b AM |
9511 | elf_section_data (toc)->relocs = toc_relocs; |
| 9512 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9513 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9514 | sz = rel_hdr->sh_entsize; | |
| 9515 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9516 | } |
| c5614fa4 | 9517 | } |
| 28be611c AM |
9518 | else if (toc_relocs != NULL |
| 9519 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9520 | free (toc_relocs); |
| c5614fa4 AM |
9521 | |
| 9522 | if (local_syms != NULL | |
| 9523 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9524 | { | |
| 9525 | if (!info->keep_memory) | |
| 9526 | free (local_syms); | |
| 9527 | else | |
| 9528 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9529 | } | |
| 9530 | free (skip); | |
| 9531 | } | |
| 9532 | ||
| 9533 | return TRUE; | |
| 9534 | } | |
| 9535 | ||
| 1bbe0902 AM |
9536 | /* Return true iff input section I references the TOC using |
| 9537 | instructions limited to +/-32k offsets. */ | |
| 9538 | ||
| 9539 | bfd_boolean | |
| 9540 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9541 | { | |
| 9542 | return (is_ppc64_elf (i->owner) | |
| 9543 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9544 | } | |
| 9545 | ||
| 927be08e AM |
9546 | /* Allocate space for one GOT entry. */ |
| 9547 | ||
| 9548 | static void | |
| 9549 | allocate_got (struct elf_link_hash_entry *h, | |
| 9550 | struct bfd_link_info *info, | |
| 9551 | struct got_entry *gent) | |
| 9552 | { | |
| 9553 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9554 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9555 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9556 | ? 16 : 8); | |
| 9557 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9558 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9559 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9560 | ||
| 9561 | gent->got.offset = got->size; | |
| 9562 | got->size += entsize; | |
| 9563 | ||
| 19e08130 | 9564 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9565 | { |
| 33e44f2e | 9566 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9567 | htab->got_reli_size += rentsize; |
| 927be08e | 9568 | } |
| f15d0b54 AM |
9569 | else if (((bfd_link_pic (info) |
| 9570 | && !((gent->tls_type & TLS_TPREL) != 0 | |
| 9571 | && bfd_link_executable (info) | |
| 9572 | && SYMBOL_REFERENCES_LOCAL (info, h))) | |
| f0158f44 AM |
9573 | || (htab->elf.dynamic_sections_created |
| 9574 | && h->dynindx != -1 | |
| 9575 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9576 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9577 | { |
| 19e08130 | 9578 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9579 | relgot->size += rentsize; |
| 927be08e AM |
9580 | } |
| 9581 | } | |
| 9582 | ||
| 7865406b AM |
9583 | /* This function merges got entries in the same toc group. */ |
| 9584 | ||
| 9585 | static void | |
| 9586 | merge_got_entries (struct got_entry **pent) | |
| 9587 | { | |
| 9588 | struct got_entry *ent, *ent2; | |
| 9589 | ||
| 9590 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9591 | if (!ent->is_indirect) | |
| 9592 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9593 | if (!ent2->is_indirect | |
| 9594 | && ent2->addend == ent->addend | |
| 9595 | && ent2->tls_type == ent->tls_type | |
| 9596 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9597 | { | |
| 9598 | ent2->is_indirect = TRUE; | |
| 9599 | ent2->got.ent = ent; | |
| 9600 | } | |
| 9601 | } | |
| 9602 | ||
| 46434633 | 9603 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9604 | |
| 9605 | static bfd_boolean | |
| 46434633 AM |
9606 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9607 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9608 | { |
| 9609 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9610 | ||
| 9611 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9612 | && ((info->dynamic_undefined_weak != 0 |
| 9613 | && h->root.type == bfd_link_hash_undefweak) | |
| 9614 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9615 | && h->dynindx == -1 |
| 9616 | && !h->forced_local | |
| 9617 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9618 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9619 | return TRUE; | |
| 9620 | } | |
| 9621 | ||
| 65f38f15 AM |
9622 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9623 | dynamic relocs. */ | |
| 5bd4f169 | 9624 | |
| b34976b6 | 9625 | static bfd_boolean |
| 4ce794b7 | 9626 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9627 | { |
| 65f38f15 AM |
9628 | struct bfd_link_info *info; |
| 9629 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9630 | asection *s; |
| 65f38f15 | 9631 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9632 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9633 | |
| e92d460e | 9634 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9635 | return TRUE; |
| 5bd4f169 | 9636 | |
| 65f38f15 AM |
9637 | info = (struct bfd_link_info *) inf; |
| 9638 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9639 | if (htab == NULL) |
| 9640 | return FALSE; | |
| 5bd4f169 | 9641 | |
| 951fd09b AM |
9642 | eh = (struct ppc_link_hash_entry *) h; |
| 9643 | /* Run through the TLS GD got entries first if we're changing them | |
| 9644 | to TPREL. */ | |
| e7b938ca | 9645 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9646 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9647 | if (gent->got.refcount > 0 | |
| 9648 | && (gent->tls_type & TLS_GD) != 0) | |
| 9649 | { | |
| 9650 | /* This was a GD entry that has been converted to TPREL. If | |
| 9651 | there happens to be a TPREL entry we can use that one. */ | |
| 9652 | struct got_entry *ent; | |
| 9653 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9654 | if (ent->got.refcount > 0 | |
| 9655 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9656 | && ent->addend == gent->addend |
| 9657 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9658 | { |
| 9659 | gent->got.refcount = 0; | |
| 9660 | break; | |
| 9661 | } | |
| 9662 | ||
| 9663 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9664 | if (gent->got.refcount != 0) | |
| 9665 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9666 | } | |
| 9667 | ||
| 7865406b AM |
9668 | /* Remove any list entry that won't generate a word in the GOT before |
| 9669 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9670 | entries. */ | |
| 0b8bcf0d AM |
9671 | pgent = &h->got.glist; |
| 9672 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9673 | if (gent->got.refcount > 0) |
| 7865406b AM |
9674 | { |
| 9675 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9676 | && !h->def_dynamic) | |
| 9677 | { | |
| 9678 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9679 | *pgent = gent->next; | |
| 9680 | } | |
| 9681 | else | |
| 9682 | pgent = &gent->next; | |
| 9683 | } | |
| 9684 | else | |
| 9685 | *pgent = gent->next; | |
| 9686 | ||
| 9687 | if (!htab->do_multi_toc) | |
| 9688 | merge_got_entries (&h->got.glist); | |
| 9689 | ||
| 9690 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9691 | if (!gent->is_indirect) | |
| 411e1bfb | 9692 | { |
| 46434633 AM |
9693 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9694 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9695 | return FALSE; |
| 65f38f15 | 9696 | |
| 0c8d6e5c | 9697 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9698 | abort (); |
| 0ffa91dd | 9699 | |
| 927be08e | 9700 | allocate_got (h, info, gent); |
| 411e1bfb | 9701 | } |
| 65f38f15 | 9702 | |
| 954b63d4 AM |
9703 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9704 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9705 | if (!htab->elf.dynamic_sections_created |
| 9706 | && h->type != STT_GNU_IFUNC) | |
| 9707 | eh->dyn_relocs = NULL; | |
| 9708 | ||
| 529fe20e AM |
9709 | /* Discard relocs on undefined symbols that must be local. */ |
| 9710 | else if (h->root.type == bfd_link_hash_undefined | |
| 9711 | && ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) | |
| 9712 | eh->dyn_relocs = NULL; | |
| 9713 | ||
| 954b63d4 AM |
9714 | /* Also discard relocs on undefined weak syms with non-default |
| 9715 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 9716 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
9717 | eh->dyn_relocs = NULL; |
| 9718 | ||
| 8a2058b5 | 9719 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 9720 | { |
| 8a2058b5 AM |
9721 | struct elf_dyn_relocs *p, **pp; |
| 9722 | ||
| 57e7d118 AM |
9723 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9724 | dynamic pc-relative relocs against symbols which turn out to | |
| 9725 | be defined in regular objects. For the normal shared case, | |
| 9726 | discard space for relocs that have become local due to symbol | |
| 9727 | visibility changes. */ | |
| 9728 | ||
| 9729 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9730 | { |
| 57e7d118 AM |
9731 | /* Relocs that use pc_count are those that appear on a call |
| 9732 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9733 | can be generated via assembly. We want calls to | |
| 9734 | protected symbols to resolve directly to the function | |
| 9735 | rather than going via the plt. If people want function | |
| 9736 | pointer comparisons to work as expected then they should | |
| 9737 | avoid writing weird assembly. */ | |
| 9738 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9739 | { | |
| 57e7d118 AM |
9740 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9741 | { | |
| 9742 | p->count -= p->pc_count; | |
| 9743 | p->pc_count = 0; | |
| 9744 | if (p->count == 0) | |
| 9745 | *pp = p->next; | |
| 9746 | else | |
| 9747 | pp = &p->next; | |
| 9748 | } | |
| 9749 | } | |
| 65f38f15 | 9750 | |
| 954b63d4 | 9751 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 9752 | { |
| 46434633 AM |
9753 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9754 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9755 | return FALSE; |
| 5bd4f169 | 9756 | } |
| 65f38f15 | 9757 | } |
| 529fe20e | 9758 | else if (ELIMINATE_COPY_RELOCS && h->type != STT_GNU_IFUNC) |
| 57e7d118 | 9759 | { |
| 8a2058b5 | 9760 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9761 | symbols which turn out to need copy relocs or are not |
| 9762 | dynamic. */ | |
| 529fe20e AM |
9763 | if (h->dynamic_adjusted |
| 9764 | && !h->def_regular | |
| 9765 | && !ELF_COMMON_DEF_P (h)) | |
| f0158f44 | 9766 | { |
| 46434633 AM |
9767 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9768 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9769 | return FALSE; |
| dfbb6ac9 | 9770 | |
| f0158f44 AM |
9771 | if (h->dynindx == -1) |
| 9772 | eh->dyn_relocs = NULL; | |
| 9773 | } | |
| 9774 | else | |
| 8a2058b5 | 9775 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9776 | } |
| 9777 | ||
| 9778 | /* Finally, allocate space. */ | |
| 9779 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9780 | { | |
| 9781 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9782 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9783 | sreloc = htab->elf.irelplt; | |
| 9784 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9785 | } |
| 65f38f15 | 9786 | } |
| 57e7d118 AM |
9787 | |
| 9788 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9789 | && h->dynindx != -1) |
| 57e7d118 | 9790 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9791 | { |
| 57e7d118 AM |
9792 | struct plt_entry *pent; |
| 9793 | bfd_boolean doneone = FALSE; | |
| 9794 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9795 | if (pent->plt.refcount > 0) | |
| 9796 | { | |
| 9797 | if (!htab->elf.dynamic_sections_created | |
| 9798 | || h->dynindx == -1) | |
| 9799 | { | |
| 9800 | s = htab->elf.iplt; | |
| 9801 | pent->plt.offset = s->size; | |
| 9802 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9803 | s = htab->elf.irelplt; | |
| 9804 | } | |
| 9805 | else | |
| 9806 | { | |
| 9807 | /* If this is the first .plt entry, make room for the special | |
| 9808 | first entry. */ | |
| 9809 | s = htab->elf.splt; | |
| 9810 | if (s->size == 0) | |
| 9811 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9812 | |
| 57e7d118 | 9813 | pent->plt.offset = s->size; |
| 65f38f15 | 9814 | |
| 57e7d118 AM |
9815 | /* Make room for this entry. */ |
| 9816 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9817 | |
| 57e7d118 AM |
9818 | /* Make room for the .glink code. */ |
| 9819 | s = htab->glink; | |
| 9820 | if (s->size == 0) | |
| 9e390558 | 9821 | s->size += GLINK_PLTRESOLVE_SIZE (htab); |
| 57e7d118 AM |
9822 | if (htab->opd_abi) |
| 9823 | { | |
| 9824 | /* We need bigger stubs past index 32767. */ | |
| 9e390558 | 9825 | if (s->size >= GLINK_PLTRESOLVE_SIZE (htab) + 32768*2*4) |
| 57e7d118 AM |
9826 | s->size += 4; |
| 9827 | s->size += 2*4; | |
| 9828 | } | |
| 9829 | else | |
| 9830 | s->size += 4; | |
| 65f38f15 | 9831 | |
| 57e7d118 AM |
9832 | /* We also need to make an entry in the .rela.plt section. */ |
| 9833 | s = htab->elf.srelplt; | |
| 9834 | } | |
| 9835 | s->size += sizeof (Elf64_External_Rela); | |
| 9836 | doneone = TRUE; | |
| 9837 | } | |
| 9838 | else | |
| 9839 | pent->plt.offset = (bfd_vma) -1; | |
| 9840 | if (!doneone) | |
| 9841 | { | |
| 9842 | h->plt.plist = NULL; | |
| 9843 | h->needs_plt = 0; | |
| 9844 | } | |
| 65f38f15 | 9845 | } |
| 57e7d118 | 9846 | else |
| 65f38f15 | 9847 | { |
| 57e7d118 AM |
9848 | h->plt.plist = NULL; |
| 9849 | h->needs_plt = 0; | |
| 65f38f15 AM |
9850 | } |
| 9851 | ||
| b34976b6 | 9852 | return TRUE; |
| 65f38f15 AM |
9853 | } |
| 9854 | ||
| 9e390558 AM |
9855 | #define PPC_LO(v) ((v) & 0xffff) |
| 9856 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 9857 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 9858 | ||
| a345bc8d AM |
9859 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9860 | to set up space for global entry stubs. These are put in glink, | |
| 9861 | after the branch table. */ | |
| 65f38f15 | 9862 | |
| b34976b6 | 9863 | static bfd_boolean |
| a345bc8d | 9864 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9865 | { |
| a345bc8d AM |
9866 | struct bfd_link_info *info; |
| 9867 | struct ppc_link_hash_table *htab; | |
| 9868 | struct plt_entry *pent; | |
| 9e390558 | 9869 | asection *s, *plt; |
| 65f38f15 | 9870 | |
| a345bc8d AM |
9871 | if (h->root.type == bfd_link_hash_indirect) |
| 9872 | return TRUE; | |
| 65f38f15 | 9873 | |
| a345bc8d AM |
9874 | if (!h->pointer_equality_needed) |
| 9875 | return TRUE; | |
| 65f38f15 | 9876 | |
| a345bc8d AM |
9877 | if (h->def_regular) |
| 9878 | return TRUE; | |
| 65f38f15 | 9879 | |
| a345bc8d AM |
9880 | info = inf; |
| 9881 | htab = ppc_hash_table (info); | |
| 9882 | if (htab == NULL) | |
| 9883 | return FALSE; | |
| 9884 | ||
| 9e390558 AM |
9885 | s = htab->global_entry; |
| 9886 | plt = htab->elf.splt; | |
| a345bc8d AM |
9887 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 9888 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9889 | && pent->addend == 0) | |
| 9890 | { | |
| afe397ea AM |
9891 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9892 | and we are not generating a shared library or pie, then we | |
| 9893 | need to define the symbol in the executable on a call stub. | |
| 9894 | This is to avoid text relocations. */ | |
| 9e390558 AM |
9895 | bfd_vma off, stub_align, stub_off, stub_size; |
| 9896 | unsigned int align_power; | |
| 9897 | ||
| 9898 | stub_size = 16; | |
| 9899 | stub_off = s->size; | |
| 9900 | if (htab->params->plt_stub_align >= 0) | |
| 9901 | align_power = htab->params->plt_stub_align; | |
| 9902 | else | |
| 9903 | align_power = -htab->params->plt_stub_align; | |
| 9904 | /* Setting section alignment is delayed until we know it is | |
| 9905 | non-empty. Otherwise the .text output section will be | |
| 9906 | aligned at least to plt_stub_align even when no global | |
| 9907 | entry stubs are needed. */ | |
| 9908 | if (s->alignment_power < align_power) | |
| 9909 | s->alignment_power = align_power; | |
| 9910 | stub_align = (bfd_vma) 1 << align_power; | |
| 9911 | if (htab->params->plt_stub_align >= 0 | |
| 9912 | || ((((stub_off + stub_size - 1) & -stub_align) | |
| 9913 | - (stub_off & -stub_align)) | |
| 9914 | > ((stub_size - 1) & -stub_align))) | |
| 9915 | stub_off = (stub_off + stub_align - 1) & -stub_align; | |
| 9916 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; | |
| 9917 | off -= stub_off + s->output_offset + s->output_section->vma; | |
| 9918 | /* Note that for --plt-stub-align negative we have a possible | |
| 9919 | dependency between stub offset and size. Break that | |
| 9920 | dependency by assuming the max stub size when calculating | |
| 9921 | the stub offset. */ | |
| 9922 | if (PPC_HA (off) == 0) | |
| 9923 | stub_size -= 4; | |
| 8a2058b5 | 9924 | h->root.type = bfd_link_hash_defined; |
| afe397ea | 9925 | h->root.u.def.section = s; |
| 9e390558 AM |
9926 | h->root.u.def.value = stub_off; |
| 9927 | s->size = stub_off + stub_size; | |
| a345bc8d AM |
9928 | break; |
| 9929 | } | |
| 9930 | return TRUE; | |
| 9931 | } | |
| 9932 | ||
| 9933 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9934 | read-only sections. */ | |
| 9935 | ||
| 9936 | static bfd_boolean | |
| 98bbb1b8 | 9937 | maybe_set_textrel (struct elf_link_hash_entry *h, void *inf) |
| a345bc8d | 9938 | { |
| 98bbb1b8 AM |
9939 | asection *sec; |
| 9940 | ||
| a345bc8d AM |
9941 | if (h->root.type == bfd_link_hash_indirect) |
| 9942 | return TRUE; | |
| 9943 | ||
| 98bbb1b8 AM |
9944 | sec = readonly_dynrelocs (h); |
| 9945 | if (sec != NULL) | |
| a345bc8d | 9946 | { |
| 98bbb1b8 AM |
9947 | struct bfd_link_info *info = (struct bfd_link_info *) inf; |
| 9948 | ||
| 9949 | info->flags |= DF_TEXTREL; | |
| 9950 | info->callbacks->minfo | |
| c1c8c1ef | 9951 | (_("%pB: dynamic relocation against `%pT' in read-only section `%pA'\n"), |
| 63c1f59d | 9952 | sec->owner, h->root.root.string, sec); |
| a345bc8d AM |
9953 | |
| 9954 | /* Not an error, just cut short the traversal. */ | |
| 9955 | return FALSE; | |
| 65f38f15 | 9956 | } |
| b34976b6 | 9957 | return TRUE; |
| 65f38f15 AM |
9958 | } |
| 9959 | ||
| 9960 | /* Set the sizes of the dynamic sections. */ | |
| 9961 | ||
| b34976b6 | 9962 | static bfd_boolean |
| ee67d69a | 9963 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9964 | struct bfd_link_info *info) |
| 65f38f15 AM |
9965 | { |
| 9966 | struct ppc_link_hash_table *htab; | |
| 9967 | bfd *dynobj; | |
| 9968 | asection *s; | |
| b34976b6 | 9969 | bfd_boolean relocs; |
| 65f38f15 | 9970 | bfd *ibfd; |
| 7865406b | 9971 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9972 | |
| 9973 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9974 | if (htab == NULL) |
| 9975 | return FALSE; | |
| 9976 | ||
| 65f38f15 AM |
9977 | dynobj = htab->elf.dynobj; |
| 9978 | if (dynobj == NULL) | |
| 9979 | abort (); | |
| 9980 | ||
| 9981 | if (htab->elf.dynamic_sections_created) | |
| 9982 | { | |
| 9983 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9984 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9985 | { |
| 3d4d4302 | 9986 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9987 | if (s == NULL) |
| 9988 | abort (); | |
| eea6121a | 9989 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9990 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9991 | } | |
| 9992 | } | |
| 9993 | ||
| 9994 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9995 | relocs. */ | |
| c72f2fb2 | 9996 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9997 | { |
| 411e1bfb AM |
9998 | struct got_entry **lgot_ents; |
| 9999 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
10000 | struct plt_entry **local_plt; |
| 10001 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10002 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10003 | bfd_size_type locsymcount; |
| 10004 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10005 | |
| 0c8d6e5c | 10006 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10007 | continue; |
| 10008 | ||
| 10009 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10010 | { | |
| 19e08130 | 10011 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10012 | |
| 6edfbbad | 10013 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10014 | { |
| ec338859 AM |
10015 | if (!bfd_is_abs_section (p->sec) |
| 10016 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10017 | { | |
| 10018 | /* Input section has been discarded, either because | |
| 10019 | it is a copy of a linkonce section or due to | |
| 10020 | linker script /DISCARD/, so we'll be discarding | |
| 10021 | the relocs too. */ | |
| 10022 | } | |
| 248866a8 | 10023 | else if (p->count != 0) |
| ec338859 | 10024 | { |
| 19e08130 AM |
10025 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10026 | if (p->ifunc) | |
| 33e44f2e | 10027 | srel = htab->elf.irelplt; |
| eea6121a | 10028 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10029 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10030 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10031 | } |
| 65f38f15 AM |
10032 | } |
| 10033 | } | |
| 10034 | ||
| 411e1bfb AM |
10035 | lgot_ents = elf_local_got_ents (ibfd); |
| 10036 | if (!lgot_ents) | |
| 65f38f15 AM |
10037 | continue; |
| 10038 | ||
| 0ffa91dd | 10039 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10040 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10041 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10042 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10043 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10044 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10045 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10046 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10047 | { |
| 0b8bcf0d | 10048 | struct got_entry **pent, *ent; |
| 411e1bfb | 10049 | |
| 0b8bcf0d AM |
10050 | pent = lgot_ents; |
| 10051 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10052 | if (ent->got.refcount > 0) |
| 10053 | { | |
| e7b938ca | 10054 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10055 | { |
| 927be08e | 10056 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10057 | *pent = ent->next; |
| 411e1bfb AM |
10058 | } |
| 10059 | else | |
| 10060 | { | |
| 19e08130 AM |
10061 | unsigned int ent_size = 8; |
| 10062 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10063 | ||
| eea6121a | 10064 | ent->got.offset = s->size; |
| e7b938ca | 10065 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10066 | { |
| 19e08130 AM |
10067 | ent_size *= 2; |
| 10068 | rel_size *= 2; | |
| 10069 | } | |
| 10070 | s->size += ent_size; | |
| 10071 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10072 | { | |
| 33e44f2e | 10073 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10074 | htab->got_reli_size += rel_size; |
| 10075 | } | |
| f15d0b54 AM |
10076 | else if (bfd_link_pic (info) |
| 10077 | && !((ent->tls_type & TLS_TPREL) != 0 | |
| 10078 | && bfd_link_executable (info))) | |
| 19e08130 AM |
10079 | { |
| 10080 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10081 | srel->size += rel_size; | |
| 927be08e | 10082 | } |
| 0b8bcf0d | 10083 | pent = &ent->next; |
| 411e1bfb AM |
10084 | } |
| 10085 | } | |
| 10086 | else | |
| 0b8bcf0d | 10087 | *pent = ent->next; |
| 65f38f15 | 10088 | } |
| e054468f AM |
10089 | |
| 10090 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10091 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10092 | { | |
| 10093 | struct plt_entry *ent; | |
| 10094 | ||
| 10095 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10096 | if (ent->plt.refcount > 0) | |
| 10097 | { | |
| 33e44f2e | 10098 | s = htab->elf.iplt; |
| e054468f | 10099 | ent->plt.offset = s->size; |
| b9e5796b | 10100 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10101 | |
| 33e44f2e | 10102 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10103 | } |
| 10104 | else | |
| 10105 | ent->plt.offset = (bfd_vma) -1; | |
| 10106 | } | |
| 65f38f15 AM |
10107 | } |
| 10108 | ||
| 10109 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10110 | sym dynamic relocs. */ | |
| 4ce794b7 | 10111 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d | 10112 | |
| 0e1862bb | 10113 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10114 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10115 | |
| 7865406b | 10116 | first_tlsld = NULL; |
| c72f2fb2 | 10117 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10118 | { |
| 7865406b AM |
10119 | struct got_entry *ent; |
| 10120 | ||
| 0c8d6e5c | 10121 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10122 | continue; |
| 10123 | ||
| 7865406b AM |
10124 | ent = ppc64_tlsld_got (ibfd); |
| 10125 | if (ent->got.refcount > 0) | |
| 102890f0 | 10126 | { |
| 7865406b | 10127 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10128 | { |
| 7865406b AM |
10129 | ent->is_indirect = TRUE; |
| 10130 | ent->got.ent = first_tlsld; | |
| 10131 | } | |
| 10132 | else | |
| 10133 | { | |
| 10134 | if (first_tlsld == NULL) | |
| 10135 | first_tlsld = ent; | |
| 10136 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10137 | ent->got.offset = s->size; | |
| 10138 | ent->owner = ibfd; | |
| 10139 | s->size += 16; | |
| 0e1862bb | 10140 | if (bfd_link_pic (info)) |
| 7865406b AM |
10141 | { |
| 10142 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10143 | srel->size += sizeof (Elf64_External_Rela); | |
| 10144 | } | |
| 102890f0 AM |
10145 | } |
| 10146 | } | |
| 10147 | else | |
| 7865406b | 10148 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10149 | } |
| 10150 | ||
| 65f38f15 AM |
10151 | /* We now have determined the sizes of the various dynamic sections. |
| 10152 | Allocate memory for them. */ | |
| b34976b6 | 10153 | relocs = FALSE; |
| 65f38f15 AM |
10154 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10155 | { | |
| 10156 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10157 | continue; | |
| 10158 | ||
| 4ce794b7 | 10159 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10160 | /* These haven't been allocated yet; don't strip. */ |
| 10161 | continue; | |
| 33e44f2e AM |
10162 | else if (s == htab->elf.sgot |
| 10163 | || s == htab->elf.splt | |
| 10164 | || s == htab->elf.iplt | |
| c456f082 | 10165 | || s == htab->glink |
| 9e390558 | 10166 | || s == htab->global_entry |
| 5474d94f AM |
10167 | || s == htab->elf.sdynbss |
| 10168 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10169 | { |
| 10170 | /* Strip this section if we don't need it; see the | |
| 10171 | comment below. */ | |
| 5bd4f169 | 10172 | } |
| 58d180e8 AM |
10173 | else if (s == htab->glink_eh_frame) |
| 10174 | { | |
| 10175 | if (!bfd_is_abs_section (s->output_section)) | |
| 10176 | /* Not sized yet. */ | |
| 10177 | continue; | |
| 10178 | } | |
| 70cc837d | 10179 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10180 | { |
| c456f082 | 10181 | if (s->size != 0) |
| 5bd4f169 | 10182 | { |
| 33e44f2e | 10183 | if (s != htab->elf.srelplt) |
| b34976b6 | 10184 | relocs = TRUE; |
| 5bd4f169 AM |
10185 | |
| 10186 | /* We use the reloc_count field as a counter if we need | |
| 10187 | to copy relocs into the output file. */ | |
| 10188 | s->reloc_count = 0; | |
| 10189 | } | |
| 10190 | } | |
| 65f38f15 | 10191 | else |
| 5bd4f169 AM |
10192 | { |
| 10193 | /* It's not one of our sections, so don't allocate space. */ | |
| 10194 | continue; | |
| 10195 | } | |
| 10196 | ||
| eea6121a | 10197 | if (s->size == 0) |
| 5bd4f169 | 10198 | { |
| c456f082 AM |
10199 | /* If we don't need this section, strip it from the |
| 10200 | output file. This is mostly to handle .rela.bss and | |
| 10201 | .rela.plt. We must create both sections in | |
| 10202 | create_dynamic_sections, because they must be created | |
| 10203 | before the linker maps input sections to output | |
| 10204 | sections. The linker does that before | |
| 10205 | adjust_dynamic_symbol is called, and it is that | |
| 10206 | function which decides whether anything needs to go | |
| 10207 | into these sections. */ | |
| 8423293d | 10208 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10209 | continue; |
| 10210 | } | |
| 10211 | ||
| 06bcf541 AM |
10212 | if (bfd_is_abs_section (s->output_section)) |
| 10213 | _bfd_error_handler (_("warning: discarding dynamic section %s"), | |
| 10214 | s->name); | |
| 10215 | ||
| c456f082 | 10216 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10217 | continue; |
| 10218 | ||
| 65f38f15 AM |
10219 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10220 | here in case unused entries are not reclaimed before the | |
| 10221 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10222 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10223 | sections instead of garbage. | |
| 10224 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10225 | the GOT and .dynrelro. */ |
| eea6121a | 10226 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10227 | if (s->contents == NULL) |
| b34976b6 | 10228 | return FALSE; |
| 5bd4f169 AM |
10229 | } |
| 10230 | ||
| c72f2fb2 | 10231 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10232 | { |
| 0c8d6e5c | 10233 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10234 | continue; |
| 10235 | ||
| e717da7e | 10236 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10237 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10238 | { |
| eea6121a | 10239 | if (s->size == 0) |
| 8423293d | 10240 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10241 | else |
| 10242 | { | |
| eea6121a | 10243 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10244 | if (s->contents == NULL) |
| 10245 | return FALSE; | |
| 10246 | } | |
| 10247 | } | |
| 10248 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10249 | if (s != NULL) | |
| 10250 | { | |
| eea6121a | 10251 | if (s->size == 0) |
| 8423293d | 10252 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10253 | else |
| 10254 | { | |
| eea6121a | 10255 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10256 | if (s->contents == NULL) |
| 10257 | return FALSE; | |
| 10258 | relocs = TRUE; | |
| 10259 | s->reloc_count = 0; | |
| 10260 | } | |
| 10261 | } | |
| 10262 | } | |
| 10263 | ||
| e86ce104 | 10264 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10265 | { |
| e8910a83 AM |
10266 | bfd_boolean tls_opt; |
| 10267 | ||
| 5bd4f169 AM |
10268 | /* Add some entries to the .dynamic section. We fill in the |
| 10269 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10270 | must add the entries now so that we get the correct size for | |
| 10271 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10272 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10273 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10274 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10275 | |
| 0e1862bb | 10276 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10277 | { |
| dc810e39 | 10278 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10279 | return FALSE; |
| 5bd4f169 AM |
10280 | } |
| 10281 | ||
| 33e44f2e | 10282 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10283 | { |
| dc810e39 AM |
10284 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10285 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10286 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10287 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10288 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10289 | return FALSE; |
| 5bd4f169 AM |
10290 | } |
| 10291 | ||
| ee67d69a | 10292 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10293 | { |
| 10294 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10295 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10296 | return FALSE; |
| 19397422 AM |
10297 | } |
| 10298 | ||
| 7c9cf415 | 10299 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10300 | && htab->tls_get_addr_fd != NULL |
| 10301 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10302 | if (tls_opt || !htab->opd_abi) | |
| 10303 | { | |
| 10304 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10305 | return FALSE; | |
| 10306 | } | |
| a7f2871e | 10307 | |
| 5bd4f169 AM |
10308 | if (relocs) |
| 10309 | { | |
| dc810e39 AM |
10310 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10311 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10312 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10313 | return FALSE; |
| 5bd4f169 | 10314 | |
| 65f38f15 AM |
10315 | /* If any dynamic relocs apply to a read-only section, |
| 10316 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10317 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10318 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10319 | |
| 65f38f15 | 10320 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10321 | { |
| 65f38f15 | 10322 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10323 | return FALSE; |
| 5bd4f169 | 10324 | } |
| 5bd4f169 | 10325 | } |
| 5bd4f169 | 10326 | } |
| 65f38f15 | 10327 | #undef add_dynamic_entry |
| 5bd4f169 | 10328 | |
| b34976b6 | 10329 | return TRUE; |
| 5bd4f169 AM |
10330 | } |
| 10331 | ||
| a345bc8d AM |
10332 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10333 | ||
| 10334 | static bfd_boolean | |
| 10335 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10336 | { | |
| 10337 | if (h->plt.plist != NULL | |
| 10338 | && !h->def_regular | |
| 10339 | && !h->pointer_equality_needed) | |
| 10340 | return FALSE; | |
| 10341 | ||
| 10342 | return _bfd_elf_hash_symbol (h); | |
| 10343 | } | |
| 10344 | ||
| 721956f4 | 10345 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10346 | |
| 4ce794b7 AM |
10347 | static inline enum ppc_stub_type |
| 10348 | ppc_type_of_stub (asection *input_sec, | |
| 10349 | const Elf_Internal_Rela *rel, | |
| 10350 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10351 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10352 | bfd_vma destination, |
| 10353 | unsigned long local_off) | |
| 5bd4f169 | 10354 | { |
| 721956f4 AM |
10355 | struct ppc_link_hash_entry *h = *hash; |
| 10356 | bfd_vma location; | |
| 10357 | bfd_vma branch_offset; | |
| 10358 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10359 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10360 | |
| 721956f4 AM |
10361 | if (h != NULL) |
| 10362 | { | |
| e054468f | 10363 | struct plt_entry *ent; |
| 7fe2b9a6 | 10364 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10365 | if (h->oh != NULL |
| 10366 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10367 | { |
| 10368 | fdh = ppc_follow_link (h->oh); | |
| 10369 | *hash = fdh; | |
| 10370 | } | |
| 8387904d | 10371 | |
| e054468f AM |
10372 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10373 | if (ent->addend == rel->r_addend | |
| 10374 | && ent->plt.offset != (bfd_vma) -1) | |
| 10375 | { | |
| e054468f AM |
10376 | *plt_ent = ent; |
| 10377 | return ppc_stub_plt_call; | |
| 10378 | } | |
| 5bd4f169 | 10379 | |
| 7fe2b9a6 AM |
10380 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10381 | either a defined function descriptor or a defined entry symbol | |
| 10382 | in a regular object file, then it is pointless trying to make | |
| 10383 | any other type of stub. */ | |
| 854b41e7 AM |
10384 | if (!is_static_defined (&fdh->elf) |
| 10385 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10386 | return ppc_stub_none; |
| 5d1634d7 | 10387 | } |
| e054468f AM |
10388 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10389 | { | |
| 10390 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10391 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10392 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10393 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10394 | ||
| 10395 | if (local_plt[r_symndx] != NULL) | |
| 10396 | { | |
| 10397 | struct plt_entry *ent; | |
| 10398 | ||
| 10399 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10400 | if (ent->addend == rel->r_addend | |
| 10401 | && ent->plt.offset != (bfd_vma) -1) | |
| 10402 | { | |
| 10403 | *plt_ent = ent; | |
| 10404 | return ppc_stub_plt_call; | |
| 10405 | } | |
| 10406 | } | |
| 10407 | } | |
| 5d1634d7 | 10408 | |
| 721956f4 AM |
10409 | /* Determine where the call point is. */ |
| 10410 | location = (input_sec->output_offset | |
| 10411 | + input_sec->output_section->vma | |
| 10412 | + rel->r_offset); | |
| 5d1634d7 | 10413 | |
| 721956f4 AM |
10414 | branch_offset = destination - location; |
| 10415 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10416 | |
| 721956f4 AM |
10417 | /* Determine if a long branch stub is needed. */ |
| 10418 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10419 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10420 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10421 | |
| 6911b7dc | 10422 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10423 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10424 | is needed later. */ | |
| 10425 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10426 | |
| 721956f4 | 10427 | return ppc_stub_none; |
| 5d1634d7 AM |
10428 | } |
| 10429 | ||
| 794e51c0 AM |
10430 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10431 | to update a plt entry in one thread and have another thread see a | |
| 10432 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10433 | barrier in the call stub. One solution is to make the load of the | |
| 10434 | toc word seem to appear to depend on the load of the function entry | |
| 10435 | word. Another solution is to test for r2 being zero, and branch to | |
| 10436 | the appropriate glink entry if so. | |
| 10437 | ||
| 10438 | . fake dep barrier compare | |
| 71a39c98 AM |
10439 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10440 | . mtctr 12 mtctr 12 | |
| 10441 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10442 | . add 2,2,11 cmpldi 2,0 |
| 10443 | . ld 2,xxx+8(2) bnectr+ | |
| 10444 | . bctr b <glink_entry> | |
| 10445 | ||
| 10446 | The solution involving the compare turns out to be faster, so | |
| 10447 | that's what we use unless the branch won't reach. */ | |
| 10448 | ||
| 10449 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10450 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10451 | |
| 794e51c0 AM |
10452 | static inline unsigned int |
| 10453 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10454 | struct ppc_stub_hash_entry *stub_entry, | |
| 10455 | bfd_vma off) | |
| 10456 | { | |
| b9e5796b AM |
10457 | unsigned size = 12; |
| 10458 | ||
| 10459 | if (ALWAYS_EMIT_R2SAVE | |
| 10460 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10461 | size += 4; | |
| 10462 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10463 | size += 4; |
| b9e5796b AM |
10464 | if (htab->opd_abi) |
| 10465 | { | |
| 10466 | size += 4; | |
| e7d1c40c | 10467 | if (htab->params->plt_static_chain) |
| b9e5796b | 10468 | size += 4; |
| bd4d2eaa AM |
10469 | if (htab->params->plt_thread_safe |
| 10470 | && htab->elf.dynamic_sections_created | |
| 10471 | && stub_entry->h != NULL | |
| 10472 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10473 | size += 8; |
| e7d1c40c | 10474 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10475 | size += 4; |
| 10476 | } | |
| 794e51c0 AM |
10477 | if (stub_entry->h != NULL |
| 10478 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10479 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10480 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10481 | { |
| 10482 | size += 7 * 4; | |
| 10483 | if (ALWAYS_EMIT_R2SAVE | |
| 10484 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 407aa07c | 10485 | size += 6 * 4; |
| f378ab09 | 10486 | } |
| 794e51c0 AM |
10487 | return size; |
| 10488 | } | |
| 10489 | ||
| 2420fff6 AM |
10490 | /* Depending on the sign of plt_stub_align: |
| 10491 | If positive, return the padding to align to a 2**plt_stub_align | |
| 10492 | boundary. | |
| 10493 | If negative, if this stub would cross fewer 2**plt_stub_align | |
| 10494 | boundaries if we align, then return the padding needed to do so. */ | |
| 10495 | ||
| 794e51c0 AM |
10496 | static inline unsigned int |
| 10497 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10498 | struct ppc_stub_hash_entry *stub_entry, | |
| 10499 | bfd_vma plt_off) | |
| 10500 | { | |
| 2420fff6 | 10501 | int stub_align; |
| 794e51c0 | 10502 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10503 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 | 10504 | |
| 2420fff6 AM |
10505 | if (htab->params->plt_stub_align >= 0) |
| 10506 | { | |
| 10507 | stub_align = 1 << htab->params->plt_stub_align; | |
| 10508 | if ((stub_off & (stub_align - 1)) != 0) | |
| 10509 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10510 | return 0; | |
| 10511 | } | |
| 10512 | ||
| 10513 | stub_align = 1 << -htab->params->plt_stub_align; | |
| 794e51c0 | 10514 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) |
| e05fa0ba | 10515 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10516 | return stub_align - (stub_off & (stub_align - 1)); |
| 10517 | return 0; | |
| 10518 | } | |
| 10519 | ||
| 10520 | /* Build a .plt call stub. */ | |
| 10521 | ||
| 10522 | static inline bfd_byte * | |
| 10523 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10524 | struct ppc_stub_hash_entry *stub_entry, | |
| 10525 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10526 | { | |
| e7d1c40c | 10527 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10528 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10529 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10530 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10531 | && htab->elf.dynamic_sections_created | |
| 10532 | && stub_entry->h != NULL | |
| 10533 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10534 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10535 | bfd_vma cmp_branch_off = 0; | |
| 10536 | ||
| 10537 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10538 | && plt_load_toc |
| 794e51c0 | 10539 | && plt_thread_safe |
| bd4d2eaa AM |
10540 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10541 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10542 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10543 | { |
| 10544 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10545 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10546 | / PLT_ENTRY_SIZE (htab)); | |
| 9e390558 | 10547 | bfd_vma glinkoff = GLINK_PLTRESOLVE_SIZE (htab) + pltindex * 8; |
| 794e51c0 AM |
10548 | bfd_vma to, from; |
| 10549 | ||
| 68d62958 AM |
10550 | if (pltindex > 32768) |
| 10551 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10552 | to = (glinkoff |
| 10553 | + htab->glink->output_offset | |
| 10554 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10555 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10556 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10557 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10558 | + 4 * (PPC_HA (offset) != 0) | |
| 10559 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10560 | != PPC_HA (offset)) | |
| 10561 | + 4 * (plt_static_chain != 0) | |
| 10562 | + 20 | |
| 6f20ed8a AM |
10563 | + stub_entry->group->stub_sec->output_offset |
| 10564 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10565 | cmp_branch_off = to - from; |
| 10566 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10567 | } | |
| 10568 | ||
| ac2df442 AM |
10569 | if (PPC_HA (offset) != 0) |
| 10570 | { | |
| 176a0d42 AM |
10571 | if (r != NULL) |
| 10572 | { | |
| 794e51c0 AM |
10573 | if (ALWAYS_EMIT_R2SAVE |
| 10574 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10575 | r[0].r_offset += 4; | |
| 176a0d42 | 10576 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10577 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10578 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10579 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10580 | if (plt_load_toc) |
| 176a0d42 | 10581 | { |
| b9e5796b | 10582 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10583 | { |
| b9e5796b AM |
10584 | r[2].r_offset = r[1].r_offset + 4; |
| 10585 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10586 | r[2].r_addend = r[0].r_addend; | |
| 10587 | } | |
| 10588 | else | |
| 10589 | { | |
| 10590 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10591 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10592 | r[2].r_addend = r[0].r_addend + 8; | |
| 10593 | if (plt_static_chain) | |
| 10594 | { | |
| 10595 | r[3].r_offset = r[2].r_offset + 4; | |
| 10596 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10597 | r[3].r_addend = r[0].r_addend + 16; | |
| 10598 | } | |
| c7131b65 | 10599 | } |
| 176a0d42 AM |
10600 | } |
| 10601 | } | |
| 794e51c0 AM |
10602 | if (ALWAYS_EMIT_R2SAVE |
| 10603 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10604 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10605 | if (plt_load_toc) |
| 10606 | { | |
| 10607 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10608 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10609 | } | |
| 10610 | else | |
| 10611 | { | |
| 10612 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10613 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10614 | } | |
| b9e5796b AM |
10615 | if (plt_load_toc |
| 10616 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10617 | { |
| 71a39c98 | 10618 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10619 | offset = 0; |
| 10620 | } | |
| 71a39c98 | 10621 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10622 | if (plt_load_toc) |
| 794e51c0 | 10623 | { |
| b9e5796b AM |
10624 | if (use_fake_dep) |
| 10625 | { | |
| 10626 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10627 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10628 | } | |
| 10629 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10630 | if (plt_static_chain) | |
| 10631 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10632 | } |
| ac2df442 AM |
10633 | } |
| 10634 | else | |
| 10635 | { | |
| 176a0d42 AM |
10636 | if (r != NULL) |
| 10637 | { | |
| 794e51c0 AM |
10638 | if (ALWAYS_EMIT_R2SAVE |
| 10639 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10640 | r[0].r_offset += 4; | |
| 176a0d42 | 10641 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10642 | if (plt_load_toc) |
| 176a0d42 | 10643 | { |
| b9e5796b | 10644 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10645 | { |
| b9e5796b AM |
10646 | r[1].r_offset = r[0].r_offset + 4; |
| 10647 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10648 | r[1].r_addend = r[0].r_addend; | |
| 10649 | } | |
| 10650 | else | |
| 10651 | { | |
| 10652 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10653 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10654 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10655 | if (plt_static_chain) | |
| 10656 | { | |
| 10657 | r[2].r_offset = r[1].r_offset + 4; | |
| 10658 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10659 | r[2].r_addend = r[0].r_addend + 8; | |
| 10660 | } | |
| c7131b65 | 10661 | } |
| 176a0d42 AM |
10662 | } |
| 10663 | } | |
| 794e51c0 AM |
10664 | if (ALWAYS_EMIT_R2SAVE |
| 10665 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10666 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10667 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10668 | if (plt_load_toc |
| 10669 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10670 | { |
| 10671 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10672 | offset = 0; | |
| 10673 | } | |
| 71a39c98 | 10674 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10675 | if (plt_load_toc) |
| 794e51c0 | 10676 | { |
| b9e5796b AM |
10677 | if (use_fake_dep) |
| 10678 | { | |
| 10679 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10680 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10681 | } | |
| 10682 | if (plt_static_chain) | |
| 10683 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10684 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10685 | } |
| ac2df442 | 10686 | } |
| b9e5796b | 10687 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10688 | { |
| 10689 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10690 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10691 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10692 | } |
| 10693 | else | |
| 407aa07c | 10694 | bfd_put_32 (obfd, BCTR, p), p += 4; |
| 5d1634d7 AM |
10695 | return p; |
| 10696 | } | |
| 10697 | ||
| a7f2871e AM |
10698 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10699 | ||
| 10700 | #define LD_R11_0R3 0xe9630000 | |
| 10701 | #define LD_R12_0R3 0xe9830000 | |
| 10702 | #define MR_R0_R3 0x7c601b78 | |
| 10703 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10704 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10705 | #define BEQLR 0x4d820020 | |
| 10706 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10707 | #define STD_R11_0R1 0xf9610000 |
| 10708 | #define BCTRL 0x4e800421 | |
| 10709 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10710 | #define MTLR_R11 0x7d6803a6 |
| 10711 | ||
| 10712 | static inline bfd_byte * | |
| 794e51c0 AM |
10713 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10714 | struct ppc_stub_hash_entry *stub_entry, | |
| 10715 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10716 | { |
| e7d1c40c | 10717 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10718 | |
| a7f2871e AM |
10719 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10720 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10721 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10722 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10723 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10724 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10725 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
10726 | if (r != NULL) |
| 10727 | r[0].r_offset += 7 * 4; | |
| 10728 | if (!ALWAYS_EMIT_R2SAVE | |
| 10729 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 10730 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 10731 | ||
| a7f2871e | 10732 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 10733 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10734 | |
| 10735 | if (r != NULL) | |
| f378ab09 | 10736 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 10737 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| 407aa07c | 10738 | bfd_put_32 (obfd, BCTRL, p - 4); |
| a7f2871e | 10739 | |
| a078d95a | 10740 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10741 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10742 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10743 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10744 | ||
| 10745 | return p; | |
| 10746 | } | |
| 10747 | ||
| 176a0d42 AM |
10748 | static Elf_Internal_Rela * |
| 10749 | get_relocs (asection *sec, int count) | |
| 10750 | { | |
| 10751 | Elf_Internal_Rela *relocs; | |
| 10752 | struct bfd_elf_section_data *elfsec_data; | |
| 10753 | ||
| 10754 | elfsec_data = elf_section_data (sec); | |
| 10755 | relocs = elfsec_data->relocs; | |
| 10756 | if (relocs == NULL) | |
| 10757 | { | |
| 10758 | bfd_size_type relsize; | |
| 10759 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10760 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10761 | if (relocs == NULL) | |
| 10762 | return NULL; | |
| 10763 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10764 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10765 | sizeof (Elf_Internal_Shdr)); | |
| 10766 | if (elfsec_data->rela.hdr == NULL) | |
| 10767 | return NULL; | |
| 10768 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10769 | * sizeof (Elf64_External_Rela)); | |
| 10770 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10771 | sec->reloc_count = 0; |
| 10772 | } | |
| 10773 | relocs += sec->reloc_count; | |
| 10774 | sec->reloc_count += count; | |
| 10775 | return relocs; | |
| 10776 | } | |
| 10777 | ||
| aa374f67 | 10778 | static bfd_vma |
| 25f53a85 | 10779 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10780 | struct ppc_stub_hash_entry *stub_entry) |
| 10781 | { | |
| 25f53a85 | 10782 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10783 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10784 | |
| 10785 | if (r2off == 0) | |
| 10786 | { | |
| 10787 | /* Support linking -R objects. Get the toc pointer from the | |
| 10788 | opd entry. */ | |
| 10789 | char buf[8]; | |
| b9e5796b AM |
10790 | if (!htab->opd_abi) |
| 10791 | return r2off; | |
| aa374f67 AM |
10792 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10793 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10794 | ||
| 10795 | if (strcmp (opd->name, ".opd") != 0 | |
| 10796 | || opd->reloc_count != 0) | |
| 10797 | { | |
| c1c8c1ef | 10798 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%pT'\n"), |
| 25f53a85 | 10799 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10800 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10801 | return (bfd_vma) -1; |
| aa374f67 AM |
10802 | } |
| 10803 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10804 | return (bfd_vma) -1; |
| aa374f67 | 10805 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10806 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10807 | } |
| 6f20ed8a | 10808 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10809 | return r2off; |
| 10810 | } | |
| 10811 | ||
| b34976b6 | 10812 | static bfd_boolean |
| 4ce794b7 | 10813 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10814 | { |
| 721956f4 AM |
10815 | struct ppc_stub_hash_entry *stub_entry; |
| 10816 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10817 | struct bfd_link_info *info; |
| 10818 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10819 | bfd_byte *loc; |
| 10820 | bfd_byte *p; | |
| ee75fd95 | 10821 | bfd_vma dest, off; |
| 176a0d42 | 10822 | Elf_Internal_Rela *r; |
| e054468f | 10823 | asection *plt; |
| 5d1634d7 | 10824 | |
| 721956f4 AM |
10825 | /* Massage our args to the form they really have. */ |
| 10826 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10827 | info = in_arg; |
| 5d1634d7 | 10828 | |
| 5d1634d7 | 10829 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10830 | if (htab == NULL) |
| 10831 | return FALSE; | |
| 5d1634d7 | 10832 | |
| 721956f4 | 10833 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10834 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10835 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10836 | |
| 4ce794b7 | 10837 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10838 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10839 | { |
| 721956f4 | 10840 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10841 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10842 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10843 | dest = (stub_entry->target_value |
| 10844 | + stub_entry->target_section->output_offset | |
| 10845 | + stub_entry->target_section->output_section->vma); | |
| 10846 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10847 | off = dest; | |
| 5d1634d7 | 10848 | |
| 721956f4 AM |
10849 | /* And this is where we are coming from. */ |
| 10850 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10851 | + stub_entry->group->stub_sec->output_offset |
| 10852 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10853 | |
| 9e390558 | 10854 | p = loc; |
| ac2df442 | 10855 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) |
| ad8e1ba5 | 10856 | { |
| 25f53a85 | 10857 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10858 | |
| a7c49797 | 10859 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10860 | { |
| 10861 | htab->stub_error = TRUE; | |
| 10862 | return FALSE; | |
| 10863 | } | |
| 9e390558 AM |
10864 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 10865 | p += 4; | |
| ac2df442 AM |
10866 | if (PPC_HA (r2off) != 0) |
| 10867 | { | |
| e7d1c40c | 10868 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
10869 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 10870 | p += 4; | |
| a7c49797 AM |
10871 | } |
| 10872 | if (PPC_LO (r2off) != 0) | |
| 10873 | { | |
| 10874 | bfd_put_32 (htab->params->stub_bfd, | |
| 9e390558 AM |
10875 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| 10876 | p += 4; | |
| ac2df442 | 10877 | } |
| 9e390558 | 10878 | off -= p - loc; |
| ad8e1ba5 | 10879 | } |
| 9e390558 AM |
10880 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), p); |
| 10881 | p += 4; | |
| ad8e1ba5 | 10882 | |
| 5c3dead3 AM |
10883 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10884 | { | |
| cf97bcb0 AM |
10885 | _bfd_error_handler |
| 10886 | (_("long branch stub `%s' offset overflow"), | |
| bc30df16 | 10887 | stub_entry->root.string); |
| 5c3dead3 AM |
10888 | htab->stub_error = TRUE; |
| 10889 | return FALSE; | |
| 10890 | } | |
| ee75fd95 AM |
10891 | |
| 10892 | if (info->emitrelocations) | |
| 10893 | { | |
| 6f20ed8a | 10894 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10895 | if (r == NULL) |
| 10896 | return FALSE; | |
| 9e390558 | 10897 | r->r_offset = p - 4 - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10898 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10899 | r->r_addend = dest; | |
| 10900 | if (stub_entry->h != NULL) | |
| 10901 | { | |
| 10902 | struct elf_link_hash_entry **hashes; | |
| 10903 | unsigned long symndx; | |
| 10904 | struct ppc_link_hash_entry *h; | |
| 10905 | ||
| e7d1c40c | 10906 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10907 | if (hashes == NULL) |
| 10908 | { | |
| 10909 | bfd_size_type hsize; | |
| 10910 | ||
| 10911 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10912 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10913 | if (hashes == NULL) |
| 10914 | return FALSE; | |
| e7d1c40c | 10915 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10916 | htab->stub_globals = 1; |
| 10917 | } | |
| 10918 | symndx = htab->stub_globals++; | |
| 10919 | h = stub_entry->h; | |
| 10920 | hashes[symndx] = &h->elf; | |
| 10921 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10922 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10923 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10924 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10925 | /* H is an opd symbol. The addend must be zero. */ | |
| 10926 | r->r_addend = 0; | |
| 10927 | else | |
| 10928 | { | |
| 10929 | off = (h->elf.root.u.def.value | |
| 10930 | + h->elf.root.u.def.section->output_offset | |
| 10931 | + h->elf.root.u.def.section->output_section->vma); | |
| 10932 | r->r_addend -= off; | |
| 10933 | } | |
| 10934 | } | |
| 10935 | } | |
| 721956f4 | 10936 | break; |
| e86ce104 | 10937 | |
| 721956f4 | 10938 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10939 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10940 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10941 | stub_entry->root.string + 9, | |
| b34976b6 | 10942 | FALSE, FALSE); |
| 721956f4 AM |
10943 | if (br_entry == NULL) |
| 10944 | { | |
| cf97bcb0 AM |
10945 | _bfd_error_handler (_("can't find branch stub `%s'"), |
| 10946 | stub_entry->root.string); | |
| b34976b6 AM |
10947 | htab->stub_error = TRUE; |
| 10948 | return FALSE; | |
| 721956f4 AM |
10949 | } |
| 10950 | ||
| 176a0d42 AM |
10951 | dest = (stub_entry->target_value |
| 10952 | + stub_entry->target_section->output_offset | |
| 10953 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10954 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10955 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10956 | |
| 176a0d42 | 10957 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10958 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10959 | |
| f94498ff | 10960 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10961 | { |
| f94498ff | 10962 | br_entry->iter = 0; |
| 84f5d08e | 10963 | |
| f94498ff | 10964 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10965 | { |
| f94498ff AM |
10966 | /* Create a reloc for the branch lookup table entry. */ |
| 10967 | Elf_Internal_Rela rela; | |
| 10968 | bfd_byte *rl; | |
| 10969 | ||
| 10970 | rela.r_offset = (br_entry->offset | |
| 10971 | + htab->brlt->output_offset | |
| 10972 | + htab->brlt->output_section->vma); | |
| 10973 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10974 | rela.r_addend = dest; |
| f94498ff AM |
10975 | |
| 10976 | rl = htab->relbrlt->contents; | |
| 10977 | rl += (htab->relbrlt->reloc_count++ | |
| 10978 | * sizeof (Elf64_External_Rela)); | |
| 10979 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10980 | } | |
| 10981 | else if (info->emitrelocations) | |
| 10982 | { | |
| 176a0d42 AM |
10983 | r = get_relocs (htab->brlt, 1); |
| 10984 | if (r == NULL) | |
| 10985 | return FALSE; | |
| 10986 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10987 | normal reloc processing. Symbols and offsets are not | |
| 10988 | translated from input file to output file form, so | |
| 10989 | set up the offset per the output file. */ | |
| f94498ff AM |
10990 | r->r_offset = (br_entry->offset |
| 10991 | + htab->brlt->output_offset | |
| 10992 | + htab->brlt->output_section->vma); | |
| 10993 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10994 | r->r_addend = dest; |
| 84f5d08e | 10995 | } |
| 84f5d08e | 10996 | } |
| 721956f4 | 10997 | |
| 176a0d42 AM |
10998 | dest = (br_entry->offset |
| 10999 | + htab->brlt->output_offset | |
| 11000 | + htab->brlt->output_section->vma); | |
| 11001 | ||
| 11002 | off = (dest | |
| 06bcf541 | 11003 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11004 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11005 | |
| ad8e1ba5 | 11006 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11007 | { |
| 25f53a85 | 11008 | info->callbacks->einfo |
| c1c8c1ef | 11009 | (_("%P: linkage table error against `%pT'\n"), |
| 721956f4 | 11010 | stub_entry->root.string); |
| 5d1634d7 | 11011 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11012 | htab->stub_error = TRUE; |
| 11013 | return FALSE; | |
| 5d1634d7 | 11014 | } |
| 41bd81ab | 11015 | |
| 176a0d42 AM |
11016 | if (info->emitrelocations) |
| 11017 | { | |
| 6f20ed8a | 11018 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11019 | if (r == NULL) |
| 11020 | return FALSE; | |
| 6f20ed8a | 11021 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11022 | if (bfd_big_endian (info->output_bfd)) |
| 11023 | r[0].r_offset += 2; | |
| 00f412ee | 11024 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11025 | r[0].r_offset += 4; |
| 11026 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11027 | r[0].r_addend = dest; | |
| 11028 | if (PPC_HA (off) != 0) | |
| 11029 | { | |
| 11030 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11031 | r[1].r_offset = r[0].r_offset + 4; | |
| 11032 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11033 | r[1].r_addend = r[0].r_addend; | |
| 11034 | } | |
| 11035 | } | |
| 11036 | ||
| 9e390558 | 11037 | p = loc; |
| 00f412ee | 11038 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11039 | { |
| 176a0d42 | 11040 | if (PPC_HA (off) != 0) |
| ac2df442 | 11041 | { |
| e7d1c40c | 11042 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11043 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11044 | p += 4; | |
| e7d1c40c | 11045 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11046 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11047 | } |
| 11048 | else | |
| 9e390558 AM |
11049 | bfd_put_32 (htab->params->stub_bfd, |
| 11050 | LD_R12_0R2 | PPC_LO (off), p); | |
| ad8e1ba5 AM |
11051 | } |
| 11052 | else | |
| 11053 | { | |
| 25f53a85 | 11054 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11055 | |
| a7c49797 | 11056 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11057 | { |
| 11058 | htab->stub_error = TRUE; | |
| 11059 | return FALSE; | |
| 11060 | } | |
| ad8e1ba5 | 11061 | |
| 9e390558 AM |
11062 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), p); |
| 11063 | p += 4; | |
| 176a0d42 | 11064 | if (PPC_HA (off) != 0) |
| ac2df442 | 11065 | { |
| e7d1c40c | 11066 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 AM |
11067 | ADDIS_R12_R2 | PPC_HA (off), p); |
| 11068 | p += 4; | |
| e7d1c40c | 11069 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11070 | LD_R12_0R12 | PPC_LO (off), p); |
| ac2df442 AM |
11071 | } |
| 11072 | else | |
| 9e390558 | 11073 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), p); |
| ac2df442 AM |
11074 | |
| 11075 | if (PPC_HA (r2off) != 0) | |
| 11076 | { | |
| 9e390558 | 11077 | p += 4; |
| e7d1c40c | 11078 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11079 | ADDIS_R2_R2 | PPC_HA (r2off), p); |
| 00f412ee AM |
11080 | } |
| 11081 | if (PPC_LO (r2off) != 0) | |
| 11082 | { | |
| 9e390558 | 11083 | p += 4; |
| e7d1c40c | 11084 | bfd_put_32 (htab->params->stub_bfd, |
| 9e390558 | 11085 | ADDI_R2_R2 | PPC_LO (r2off), p); |
| ac2df442 | 11086 | } |
| ad8e1ba5 | 11087 | } |
| 9e390558 AM |
11088 | p += 4; |
| 11089 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, p); | |
| 11090 | p += 4; | |
| 407aa07c AM |
11091 | bfd_put_32 (htab->params->stub_bfd, BCTR, p); |
| 11092 | p += 4; | |
| 721956f4 | 11093 | break; |
| 5d1634d7 | 11094 | |
| 721956f4 | 11095 | case ppc_stub_plt_call: |
| 794e51c0 | 11096 | case ppc_stub_plt_call_r2save: |
| e054468f | 11097 | if (stub_entry->h != NULL |
| b31867b6 AM |
11098 | && stub_entry->h->is_func_descriptor |
| 11099 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11100 | { |
| b31867b6 AM |
11101 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11102 | ||
| 11103 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11104 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11105 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11106 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11107 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11108 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11109 | } |
| 11110 | ||
| 721956f4 | 11111 | /* Now build the stub. */ |
| e054468f | 11112 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11113 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11114 | abort (); |
| 11115 | ||
| 33e44f2e | 11116 | plt = htab->elf.splt; |
| 25f23106 AM |
11117 | if (!htab->elf.dynamic_sections_created |
| 11118 | || stub_entry->h == NULL | |
| 11119 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11120 | plt = htab->elf.iplt; |
| e054468f AM |
11121 | |
| 11122 | dest += plt->output_offset + plt->output_section->vma; | |
| 11123 | ||
| 11124 | if (stub_entry->h == NULL | |
| 11125 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11126 | { | |
| 11127 | Elf_Internal_Rela rela; | |
| 11128 | bfd_byte *rl; | |
| 11129 | ||
| 11130 | rela.r_offset = dest; | |
| ee67d69a AM |
11131 | if (htab->opd_abi) |
| 11132 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11133 | else | |
| 11134 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11135 | rela.r_addend = (stub_entry->target_value |
| 11136 | + stub_entry->target_section->output_offset | |
| 11137 | + stub_entry->target_section->output_section->vma); | |
| 11138 | ||
| 33e44f2e AM |
11139 | rl = (htab->elf.irelplt->contents |
| 11140 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11141 | * sizeof (Elf64_External_Rela))); |
| 11142 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f | 11143 | stub_entry->plt_ent->plt.offset |= 1; |
| 82e66161 | 11144 | htab->local_ifunc_resolver = 1; |
| e054468f | 11145 | } |
| 176a0d42 AM |
11146 | |
| 11147 | off = (dest | |
| 06bcf541 | 11148 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11149 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11150 | |
| ad8e1ba5 | 11151 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11152 | { |
| 25f53a85 | 11153 | info->callbacks->einfo |
| 695344c0 | 11154 | /* xgettext:c-format */ |
| c1c8c1ef | 11155 | (_("%P: linkage table error against `%pT'\n"), |
| e054468f AM |
11156 | stub_entry->h != NULL |
| 11157 | ? stub_entry->h->elf.root.root.string | |
| 11158 | : "<local sym>"); | |
| 721956f4 | 11159 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11160 | htab->stub_error = TRUE; |
| 11161 | return FALSE; | |
| 721956f4 AM |
11162 | } |
| 11163 | ||
| e7d1c40c | 11164 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11165 | { |
| 11166 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11167 | ||
| 6f20ed8a AM |
11168 | stub_entry->group->stub_sec->size += pad; |
| 11169 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11170 | loc += pad; |
| 11171 | } | |
| 11172 | ||
| 176a0d42 AM |
11173 | r = NULL; |
| 11174 | if (info->emitrelocations) | |
| 11175 | { | |
| 6f20ed8a | 11176 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11177 | ((PPC_HA (off) != 0) |
| 11178 | + (htab->opd_abi | |
| e7d1c40c | 11179 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11180 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11181 | : 1))); | |
| 176a0d42 AM |
11182 | if (r == NULL) |
| 11183 | return FALSE; | |
| 6f20ed8a | 11184 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11185 | if (bfd_big_endian (info->output_bfd)) |
| 11186 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11187 | r[0].r_addend = dest; |
| 11188 | } | |
| a7f2871e AM |
11189 | if (stub_entry->h != NULL |
| 11190 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11191 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11192 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11193 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11194 | else |
| 794e51c0 | 11195 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11196 | break; |
| 11197 | ||
| a4b6fadd AM |
11198 | case ppc_stub_save_res: |
| 11199 | return TRUE; | |
| 11200 | ||
| 721956f4 AM |
11201 | default: |
| 11202 | BFD_FAIL (); | |
| b34976b6 | 11203 | return FALSE; |
| 721956f4 AM |
11204 | } |
| 11205 | ||
| 9e390558 | 11206 | stub_entry->group->stub_sec->size += p - loc; |
| 97b639ba | 11207 | |
| e7d1c40c | 11208 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11209 | { |
| 11210 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11211 | size_t len1, len2; |
| 11212 | char *name; | |
| 11213 | const char *const stub_str[] = { "long_branch", | |
| 11214 | "long_branch_r2off", | |
| 11215 | "plt_branch", | |
| 11216 | "plt_branch_r2off", | |
| 794e51c0 | 11217 | "plt_call", |
| ee75fd95 AM |
11218 | "plt_call" }; |
| 11219 | ||
| 11220 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11221 | len2 = strlen (stub_entry->root.string); | |
| 11222 | name = bfd_malloc (len1 + len2 + 2); | |
| 11223 | if (name == NULL) | |
| 11224 | return FALSE; | |
| 11225 | memcpy (name, stub_entry->root.string, 9); | |
| 11226 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11227 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11228 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11229 | if (h == NULL) |
| 11230 | return FALSE; | |
| 11231 | if (h->root.type == bfd_link_hash_new) | |
| 11232 | { | |
| 11233 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11234 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11235 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11236 | h->ref_regular = 1; |
| 11237 | h->def_regular = 1; | |
| 11238 | h->ref_regular_nonweak = 1; | |
| 11239 | h->forced_local = 1; | |
| 11240 | h->non_elf = 0; | |
| 2ec55de3 | 11241 | h->root.linker_def = 1; |
| 97b639ba AM |
11242 | } |
| 11243 | } | |
| 11244 | ||
| b34976b6 | 11245 | return TRUE; |
| 721956f4 AM |
11246 | } |
| 11247 | ||
| 11248 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11249 | we know stub section sizes, and select plt_branch stubs where | |
| 11250 | long_branch stubs won't do. */ | |
| 11251 | ||
| b34976b6 | 11252 | static bfd_boolean |
| 4ce794b7 | 11253 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11254 | { |
| 11255 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11256 | struct bfd_link_info *info; |
| 721956f4 AM |
11257 | struct ppc_link_hash_table *htab; |
| 11258 | bfd_vma off; | |
| 11259 | int size; | |
| 11260 | ||
| 11261 | /* Massage our args to the form they really have. */ | |
| 11262 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11263 | info = in_arg; |
| 11264 | ||
| 11265 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11266 | if (htab == NULL) |
| 11267 | return FALSE; | |
| 721956f4 | 11268 | |
| a4b6fadd AM |
11269 | if (stub_entry->h != NULL |
| 11270 | && stub_entry->h->save_res | |
| 11271 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11272 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11273 | { | |
| 11274 | /* Don't make stubs to out-of-line register save/restore | |
| 11275 | functions. Instead, emit copies of the functions. */ | |
| 11276 | stub_entry->group->needs_save_res = 1; | |
| 11277 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11278 | return TRUE; | |
| 11279 | } | |
| 11280 | ||
| 794e51c0 AM |
11281 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11282 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11283 | { |
| e054468f AM |
11284 | asection *plt; |
| 11285 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11286 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11287 | abort (); |
| 33e44f2e | 11288 | plt = htab->elf.splt; |
| 25f23106 AM |
11289 | if (!htab->elf.dynamic_sections_created |
| 11290 | || stub_entry->h == NULL | |
| 11291 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11292 | plt = htab->elf.iplt; |
| e054468f AM |
11293 | off += (plt->output_offset |
| 11294 | + plt->output_section->vma | |
| 06bcf541 | 11295 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11296 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11297 | |
| 794e51c0 | 11298 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11299 | if (stub_entry->h != NULL |
| 11300 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11301 | || stub_entry->h == htab->tls_get_addr) | |
| 11302 | && htab->params->tls_get_addr_opt | |
| 11303 | && (ALWAYS_EMIT_R2SAVE | |
| 11304 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11305 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11306 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11307 | ||
| e7d1c40c | 11308 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11309 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11310 | if (info->emitrelocations) |
| 11311 | { | |
| 6f20ed8a | 11312 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11313 | += ((PPC_HA (off) != 0) |
| 11314 | + (htab->opd_abi | |
| e7d1c40c | 11315 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11316 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11317 | : 1)); | |
| 6f20ed8a | 11318 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11319 | } |
| 721956f4 AM |
11320 | } |
| 11321 | else | |
| 11322 | { | |
| ad8e1ba5 AM |
11323 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11324 | variants. */ | |
| ac2df442 | 11325 | bfd_vma r2off = 0; |
| 6911b7dc | 11326 | bfd_vma local_off = 0; |
| ac2df442 | 11327 | |
| 721956f4 AM |
11328 | off = (stub_entry->target_value |
| 11329 | + stub_entry->target_section->output_offset | |
| 11330 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11331 | off -= (stub_entry->group->stub_sec->size |
| 11332 | + stub_entry->group->stub_sec->output_offset | |
| 11333 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11334 | |
| ad8e1ba5 AM |
11335 | /* Reset the stub type from the plt variant in case we now |
| 11336 | can reach with a shorter stub. */ | |
| 11337 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11338 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11339 | ||
| 11340 | size = 4; | |
| 11341 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11342 | { | |
| 25f53a85 | 11343 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11344 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11345 | { |
| 11346 | htab->stub_error = TRUE; | |
| 11347 | return FALSE; | |
| 11348 | } | |
| a7c49797 | 11349 | size = 8; |
| ac2df442 | 11350 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11351 | size += 4; |
| 11352 | if (PPC_LO (r2off) != 0) | |
| 11353 | size += 4; | |
| ac2df442 | 11354 | off -= size - 4; |
| ad8e1ba5 AM |
11355 | } |
| 11356 | ||
| 6911b7dc AM |
11357 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11358 | ||
| b9e5796b AM |
11359 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11360 | Do the same for -R objects without function descriptors. */ | |
| 11361 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11362 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11363 | && r2off == 0 |
| 11364 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11365 | { |
| 11366 | struct ppc_branch_hash_entry *br_entry; | |
| 11367 | ||
| 11368 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11369 | stub_entry->root.string + 9, | |
| b34976b6 | 11370 | TRUE, FALSE); |
| 721956f4 AM |
11371 | if (br_entry == NULL) |
| 11372 | { | |
| cf97bcb0 AM |
11373 | _bfd_error_handler (_("can't build branch stub `%s'"), |
| 11374 | stub_entry->root.string); | |
| b34976b6 AM |
11375 | htab->stub_error = TRUE; |
| 11376 | return FALSE; | |
| 721956f4 AM |
11377 | } |
| 11378 | ||
| 11379 | if (br_entry->iter != htab->stub_iteration) | |
| 11380 | { | |
| 11381 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11382 | br_entry->offset = htab->brlt->size; |
| 11383 | htab->brlt->size += 8; | |
| 63bc6f6c | 11384 | |
| ee75fd95 | 11385 | if (htab->relbrlt != NULL) |
| eea6121a | 11386 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11387 | else if (info->emitrelocations) |
| 11388 | { | |
| 11389 | htab->brlt->reloc_count += 1; | |
| 11390 | htab->brlt->flags |= SEC_RELOC; | |
| 11391 | } | |
| 721956f4 | 11392 | } |
| ad8e1ba5 AM |
11393 | |
| 11394 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11395 | off = (br_entry->offset |
| 11396 | + htab->brlt->output_offset | |
| 11397 | + htab->brlt->output_section->vma | |
| 06bcf541 | 11398 | - elf_gp (info->output_bfd) |
| 6f20ed8a | 11399 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11400 | |
| 176a0d42 AM |
11401 | if (info->emitrelocations) |
| 11402 | { | |
| 6f20ed8a AM |
11403 | stub_entry->group->stub_sec->reloc_count |
| 11404 | += 1 + (PPC_HA (off) != 0); | |
| 11405 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11406 | } |
| 11407 | ||
| 00f412ee | 11408 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11409 | { |
| 11410 | size = 12; | |
| 176a0d42 | 11411 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11412 | size = 16; |
| 11413 | } | |
| 11414 | else | |
| 11415 | { | |
| 00f412ee | 11416 | size = 16; |
| 176a0d42 | 11417 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11418 | size += 4; |
| 11419 | ||
| 11420 | if (PPC_HA (r2off) != 0) | |
| 11421 | size += 4; | |
| 00f412ee AM |
11422 | if (PPC_LO (r2off) != 0) |
| 11423 | size += 4; | |
| ac2df442 | 11424 | } |
| 721956f4 | 11425 | } |
| 84f5d08e AM |
11426 | else if (info->emitrelocations) |
| 11427 | { | |
| 6f20ed8a AM |
11428 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11429 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11430 | } |
| 721956f4 AM |
11431 | } |
| 11432 | ||
| 6f20ed8a | 11433 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11434 | return TRUE; |
| 721956f4 AM |
11435 | } |
| 11436 | ||
| 11437 | /* Set up various things so that we can make a list of input sections | |
| 11438 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11439 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11440 | |
| 11441 | int | |
| e7d1c40c | 11442 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11443 | { |
| 6f20ed8a | 11444 | unsigned int id; |
| 721956f4 AM |
11445 | bfd_size_type amt; |
| 11446 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11447 | ||
| 4dfe6ac6 NC |
11448 | if (htab == NULL) |
| 11449 | return -1; | |
| 4c52953f | 11450 | |
| 6f20ed8a AM |
11451 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11452 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11453 | htab->sec_info = bfd_zmalloc (amt); | |
| 11454 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11455 | return -1; |
| 11456 | ||
| 3d6f9012 AM |
11457 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11458 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11459 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11460 | |
| 721956f4 AM |
11461 | return 1; |
| 11462 | } | |
| 11463 | ||
| 927be08e AM |
11464 | /* Set up for first pass at multitoc partitioning. */ |
| 11465 | ||
| 11466 | void | |
| 11467 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11468 | { | |
| 11469 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11470 | ||
| 1c865ab2 | 11471 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11472 | htab->toc_bfd = NULL; |
| 11473 | htab->toc_first_sec = NULL; | |
| 11474 | } | |
| 11475 | ||
| e717da7e AM |
11476 | /* The linker repeatedly calls this function for each TOC input section |
| 11477 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11478 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11479 | |
| 927be08e | 11480 | bfd_boolean |
| 4ce794b7 | 11481 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11482 | { |
| 11483 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11484 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11485 | |
| 4dfe6ac6 NC |
11486 | if (htab == NULL) |
| 11487 | return FALSE; | |
| 11488 | ||
| 927be08e | 11489 | if (!htab->second_toc_pass) |
| 4c52953f | 11490 | { |
| 927be08e | 11491 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11492 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11493 | ||
| 11494 | if (new_bfd) | |
| bf102f86 AM |
11495 | { |
| 11496 | htab->toc_bfd = isec->owner; | |
| 11497 | htab->toc_first_sec = isec; | |
| 11498 | } | |
| 927be08e | 11499 | |
| bf102f86 AM |
11500 | addr = isec->output_offset + isec->output_section->vma; |
| 11501 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11502 | limit = 0x80008000; |
| 11503 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11504 | limit = 0x10000; | |
| 11505 | if (off + isec->size > limit) | |
| bf102f86 AM |
11506 | { |
| 11507 | addr = (htab->toc_first_sec->output_offset | |
| 11508 | + htab->toc_first_sec->output_section->vma); | |
| 11509 | htab->toc_curr = addr; | |
| a27e685f | 11510 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11511 | } |
| 99877b66 | 11512 | |
| 927be08e AM |
11513 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11514 | for the input section to be the offset relative to the | |
| 11515 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11516 | offset allows us to move the toc as a whole without | |
| 11517 | recalculating input elf_gp. */ | |
| 06bcf541 | 11518 | off = htab->toc_curr - elf_gp (info->output_bfd); |
| 927be08e AM |
11519 | off += TOC_BASE_OFF; |
| 11520 | ||
| 11521 | /* Die if someone uses a linker script that doesn't keep input | |
| 11522 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11523 | if (new_bfd |
| 11524 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11525 | && elf_gp (isec->owner) != off) |
| 11526 | return FALSE; | |
| 11527 | ||
| 11528 | elf_gp (isec->owner) = off; | |
| 11529 | return TRUE; | |
| 4c52953f | 11530 | } |
| 927be08e AM |
11531 | |
| 11532 | /* During the second pass toc_first_sec points to the start of | |
| 11533 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11534 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11535 | if (htab->toc_bfd == isec->owner) | |
| 11536 | return TRUE; | |
| 11537 | htab->toc_bfd = isec->owner; | |
| 11538 | ||
| 11539 | if (htab->toc_first_sec == NULL | |
| 11540 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11541 | { | |
| 11542 | htab->toc_curr = elf_gp (isec->owner); | |
| 11543 | htab->toc_first_sec = isec; | |
| 11544 | } | |
| 11545 | addr = (htab->toc_first_sec->output_offset | |
| 11546 | + htab->toc_first_sec->output_section->vma); | |
| 06bcf541 | 11547 | off = addr - elf_gp (info->output_bfd) + TOC_BASE_OFF; |
| 927be08e AM |
11548 | elf_gp (isec->owner) = off; |
| 11549 | ||
| 11550 | return TRUE; | |
| ad8e1ba5 AM |
11551 | } |
| 11552 | ||
| 927be08e AM |
11553 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11554 | symbol H. */ | |
| 11555 | ||
| 11556 | static bfd_boolean | |
| 11557 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11558 | { | |
| 11559 | if (h->root.type == bfd_link_hash_indirect) | |
| 11560 | return TRUE; | |
| 11561 | ||
| 927be08e AM |
11562 | merge_got_entries (&h->got.glist); |
| 11563 | ||
| 11564 | return TRUE; | |
| 11565 | } | |
| 11566 | ||
| 11567 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11568 | symbol H. */ | |
| 11569 | ||
| 11570 | static bfd_boolean | |
| 11571 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11572 | { | |
| 11573 | struct got_entry *gent; | |
| 11574 | ||
| 11575 | if (h->root.type == bfd_link_hash_indirect) | |
| 11576 | return TRUE; | |
| 11577 | ||
| 927be08e AM |
11578 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11579 | if (!gent->is_indirect) | |
| 11580 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11581 | return TRUE; | |
| 11582 | } | |
| 11583 | ||
| 11584 | /* Called on the first multitoc pass after the last call to | |
| 11585 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11586 | entries. */ | |
| 11587 | ||
| 11588 | bfd_boolean | |
| 11589 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11590 | { |
| 11591 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11592 | struct bfd *ibfd, *ibfd2; |
| 11593 | bfd_boolean done_something; | |
| 11594 | ||
| 11595 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11596 | |
| 7865406b AM |
11597 | if (!htab->do_multi_toc) |
| 11598 | return FALSE; | |
| 11599 | ||
| d0fae19d | 11600 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11601 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11602 | ||
| 11603 | /* And tlsld_got. */ | |
| c72f2fb2 | 11604 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11605 | { |
| 11606 | struct got_entry *ent, *ent2; | |
| 11607 | ||
| 11608 | if (!is_ppc64_elf (ibfd)) | |
| 11609 | continue; | |
| 11610 | ||
| 11611 | ent = ppc64_tlsld_got (ibfd); | |
| 11612 | if (!ent->is_indirect | |
| 11613 | && ent->got.offset != (bfd_vma) -1) | |
| 11614 | { | |
| c72f2fb2 | 11615 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11616 | { |
| 11617 | if (!is_ppc64_elf (ibfd2)) | |
| 11618 | continue; | |
| 11619 | ||
| 11620 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11621 | if (!ent2->is_indirect | |
| 11622 | && ent2->got.offset != (bfd_vma) -1 | |
| 11623 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11624 | { | |
| 11625 | ent2->is_indirect = TRUE; | |
| 11626 | ent2->got.ent = ent; | |
| 11627 | } | |
| 11628 | } | |
| 11629 | } | |
| 11630 | } | |
| 11631 | ||
| 11632 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11633 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11634 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11635 | htab->got_reli_size = 0; |
| 11636 | ||
| c72f2fb2 | 11637 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11638 | { |
| 11639 | asection *got, *relgot; | |
| 11640 | ||
| 11641 | if (!is_ppc64_elf (ibfd)) | |
| 11642 | continue; | |
| 11643 | ||
| 11644 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11645 | if (got != NULL) | |
| 11646 | { | |
| 11647 | got->rawsize = got->size; | |
| 11648 | got->size = 0; | |
| 11649 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11650 | relgot->rawsize = relgot->size; | |
| 11651 | relgot->size = 0; | |
| 11652 | } | |
| 11653 | } | |
| 11654 | ||
| 11655 | /* Now reallocate the got, local syms first. We don't need to | |
| 11656 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11657 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11658 | { |
| 11659 | struct got_entry **lgot_ents; | |
| 11660 | struct got_entry **end_lgot_ents; | |
| 11661 | struct plt_entry **local_plt; | |
| 11662 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11663 | unsigned char *lgot_masks; |
| 927be08e AM |
11664 | bfd_size_type locsymcount; |
| 11665 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11666 | asection *s; |
| 927be08e AM |
11667 | |
| 11668 | if (!is_ppc64_elf (ibfd)) | |
| 11669 | continue; | |
| 11670 | ||
| 11671 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11672 | if (!lgot_ents) | |
| 11673 | continue; | |
| 11674 | ||
| 11675 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11676 | locsymcount = symtab_hdr->sh_info; | |
| 11677 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11678 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11679 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11680 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11681 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11682 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11683 | { | |
| 11684 | struct got_entry *ent; | |
| 11685 | ||
| 11686 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11687 | { |
| 19e08130 AM |
11688 | unsigned int ent_size = 8; |
| 11689 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11690 | ||
| d0fae19d AM |
11691 | ent->got.offset = s->size; |
| 11692 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11693 | { |
| 19e08130 AM |
11694 | ent_size *= 2; |
| 11695 | rel_size *= 2; | |
| 11696 | } | |
| 11697 | s->size += ent_size; | |
| 11698 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11699 | { | |
| 33e44f2e | 11700 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11701 | htab->got_reli_size += rel_size; |
| 11702 | } | |
| 0e1862bb | 11703 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11704 | { |
| 11705 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11706 | srel->size += rel_size; | |
| d0fae19d AM |
11707 | } |
| 11708 | } | |
| 927be08e AM |
11709 | } |
| 11710 | } | |
| 11711 | ||
| 11712 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11713 | ||
| c72f2fb2 | 11714 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11715 | { |
| 11716 | struct got_entry *ent; | |
| 11717 | ||
| 11718 | if (!is_ppc64_elf (ibfd)) | |
| 11719 | continue; | |
| 11720 | ||
| 11721 | ent = ppc64_tlsld_got (ibfd); | |
| 11722 | if (!ent->is_indirect | |
| 11723 | && ent->got.offset != (bfd_vma) -1) | |
| 11724 | { | |
| 11725 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11726 | ent->got.offset = s->size; | |
| 11727 | s->size += 16; | |
| 0e1862bb | 11728 | if (bfd_link_pic (info)) |
| 927be08e AM |
11729 | { |
| 11730 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11731 | srel->size += sizeof (Elf64_External_Rela); | |
| 11732 | } | |
| 11733 | } | |
| 11734 | } | |
| 11735 | ||
| 33e44f2e | 11736 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11737 | if (!done_something) |
| c72f2fb2 | 11738 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11739 | { |
| 11740 | asection *got; | |
| 11741 | ||
| 11742 | if (!is_ppc64_elf (ibfd)) | |
| 11743 | continue; | |
| 11744 | ||
| 11745 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11746 | if (got != NULL) | |
| 11747 | { | |
| 11748 | done_something = got->rawsize != got->size; | |
| 11749 | if (done_something) | |
| 11750 | break; | |
| 11751 | } | |
| 11752 | } | |
| 11753 | ||
| 11754 | if (done_something) | |
| e7d1c40c | 11755 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11756 | |
| 11757 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11758 | on input sections. */ | |
| 11759 | htab->toc_bfd = NULL; | |
| 11760 | htab->toc_first_sec = NULL; | |
| 11761 | htab->second_toc_pass = TRUE; | |
| 11762 | return done_something; | |
| 11763 | } | |
| 11764 | ||
| 11765 | /* Called after second pass of multitoc partitioning. */ | |
| 11766 | ||
| 11767 | void | |
| 11768 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11769 | { | |
| 11770 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11771 | ||
| 11772 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11773 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11774 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11775 | } |
| 11776 | ||
| 9b5ecbd0 AM |
11777 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11778 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11779 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11780 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11781 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11782 | for a stub was detected. If called from the top level, a return of | |
| 11783 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11784 | |
| 11785 | static int | |
| 4ce794b7 | 11786 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11787 | { |
| 9b5ecbd0 | 11788 | int ret; |
| 70cc837d AM |
11789 | |
| 11790 | /* Mark this section as checked. */ | |
| 11791 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11792 | |
| 772119ce AM |
11793 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11794 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11795 | return 0; | |
| 11796 | ||
| eea6121a | 11797 | if (isec->size == 0) |
| 082c50f8 AM |
11798 | return 0; |
| 11799 | ||
| 4c52953f AM |
11800 | if (isec->output_section == NULL) |
| 11801 | return 0; | |
| 11802 | ||
| 4c52953f | 11803 | ret = 0; |
| 70cc837d | 11804 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11805 | { |
| 70cc837d AM |
11806 | Elf_Internal_Rela *relstart, *rel; |
| 11807 | Elf_Internal_Sym *local_syms; | |
| 11808 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11809 | |
| 70cc837d AM |
11810 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11811 | info->keep_memory); | |
| 11812 | if (relstart == NULL) | |
| 11813 | return -1; | |
| 90aecf7a | 11814 | |
| 70cc837d AM |
11815 | /* Look for branches to outside of this section. */ |
| 11816 | local_syms = NULL; | |
| 11817 | htab = ppc_hash_table (info); | |
| 11818 | if (htab == NULL) | |
| 11819 | return -1; | |
| 4c52953f | 11820 | |
| 70cc837d | 11821 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11822 | { |
| 70cc837d AM |
11823 | enum elf_ppc64_reloc_type r_type; |
| 11824 | unsigned long r_symndx; | |
| 11825 | struct elf_link_hash_entry *h; | |
| 11826 | struct ppc_link_hash_entry *eh; | |
| 11827 | Elf_Internal_Sym *sym; | |
| 11828 | asection *sym_sec; | |
| 11829 | struct _opd_sec_data *opd; | |
| 11830 | bfd_vma sym_value; | |
| 11831 | bfd_vma dest; | |
| 11832 | ||
| 11833 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11834 | if (r_type != R_PPC64_REL24 | |
| 11835 | && r_type != R_PPC64_REL14 | |
| 11836 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11837 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11838 | continue; | |
| 4c52953f | 11839 | |
| 70cc837d AM |
11840 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11841 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11842 | isec->owner)) | |
| 4c52953f | 11843 | { |
| 70cc837d AM |
11844 | ret = -1; |
| 11845 | break; | |
| 11846 | } | |
| 4c52953f | 11847 | |
| 70cc837d AM |
11848 | /* Calls to dynamic lib functions go through a plt call stub |
| 11849 | that uses r2. */ | |
| 11850 | eh = (struct ppc_link_hash_entry *) h; | |
| 11851 | if (eh != NULL | |
| 11852 | && (eh->elf.plt.plist != NULL | |
| 11853 | || (eh->oh != NULL | |
| 11854 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11855 | { | |
| 11856 | ret = 1; | |
| 11857 | break; | |
| 4c52953f AM |
11858 | } |
| 11859 | ||
| 70cc837d AM |
11860 | if (sym_sec == NULL) |
| 11861 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11862 | continue; |
| 4c52953f | 11863 | |
| 70cc837d AM |
11864 | /* Assume branches to other sections not included in the |
| 11865 | link need stubs too, to cover -R and absolute syms. */ | |
| 11866 | if (sym_sec->output_section == NULL) | |
| 11867 | { | |
| 11868 | ret = 1; | |
| 11869 | break; | |
| 11870 | } | |
| 4c52953f | 11871 | |
| 70cc837d AM |
11872 | if (h == NULL) |
| 11873 | sym_value = sym->st_value; | |
| 11874 | else | |
| 11875 | { | |
| 11876 | if (h->root.type != bfd_link_hash_defined | |
| 11877 | && h->root.type != bfd_link_hash_defweak) | |
| 11878 | abort (); | |
| 11879 | sym_value = h->root.u.def.value; | |
| 11880 | } | |
| 11881 | sym_value += rel->r_addend; | |
| 4c52953f | 11882 | |
| 70cc837d AM |
11883 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11884 | opd = get_opd_info (sym_sec); | |
| 11885 | if (opd != NULL) | |
| 11886 | { | |
| 11887 | if (h == NULL && opd->adjust != NULL) | |
| 11888 | { | |
| 11889 | long adjust; | |
| 4c52953f | 11890 | |
| 92a9c616 | 11891 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11892 | if (adjust == -1) |
| 11893 | /* Assume deleted functions won't ever be called. */ | |
| 11894 | continue; | |
| 11895 | sym_value += adjust; | |
| 11896 | } | |
| 4c52953f | 11897 | |
| aef36ac1 AM |
11898 | dest = opd_entry_value (sym_sec, sym_value, |
| 11899 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11900 | if (dest == (bfd_vma) -1) |
| 11901 | continue; | |
| 11902 | } | |
| 11903 | else | |
| 11904 | dest = (sym_value | |
| 11905 | + sym_sec->output_offset | |
| 11906 | + sym_sec->output_section->vma); | |
| 4c52953f | 11907 | |
| 70cc837d AM |
11908 | /* Ignore branch to self. */ |
| 11909 | if (sym_sec == isec) | |
| 11910 | continue; | |
| 4c52953f | 11911 | |
| 70cc837d AM |
11912 | /* If the called function uses the toc, we need a stub. */ |
| 11913 | if (sym_sec->has_toc_reloc | |
| 11914 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11915 | { |
| 70cc837d | 11916 | ret = 1; |
| 4c52953f AM |
11917 | break; |
| 11918 | } | |
| 70cc837d AM |
11919 | |
| 11920 | /* Assume any branch that needs a long branch stub might in fact | |
| 11921 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11922 | else if (dest - (isec->output_offset | |
| 11923 | + isec->output_section->vma | |
| 6911b7dc AM |
11924 | + rel->r_offset) + (1 << 25) |
| 11925 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11926 | ? h->other | |
| 11927 | : sym->st_other)) | |
| 4c52953f | 11928 | { |
| 70cc837d AM |
11929 | ret = 1; |
| 11930 | break; | |
| 11931 | } | |
| 11932 | ||
| 11933 | /* If calling back to a section in the process of being | |
| 11934 | tested, we can't say for sure that no toc adjusting stubs | |
| 11935 | are needed, so don't return zero. */ | |
| 11936 | else if (sym_sec->call_check_in_progress) | |
| 11937 | ret = 2; | |
| 11938 | ||
| 11939 | /* Branches to another section that itself doesn't have any TOC | |
| 11940 | references are OK. Recursively call ourselves to check. */ | |
| 11941 | else if (!sym_sec->call_check_done) | |
| 11942 | { | |
| 11943 | int recur; | |
| 11944 | ||
| 11945 | /* Mark current section as indeterminate, so that other | |
| 11946 | sections that call back to current won't be marked as | |
| 11947 | known. */ | |
| 11948 | isec->call_check_in_progress = 1; | |
| 11949 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11950 | isec->call_check_in_progress = 0; | |
| 11951 | ||
| 4c52953f AM |
11952 | if (recur != 0) |
| 11953 | { | |
| 70cc837d AM |
11954 | ret = recur; |
| 11955 | if (recur != 2) | |
| 11956 | break; | |
| 4c52953f AM |
11957 | } |
| 11958 | } | |
| 4c52953f | 11959 | } |
| 70cc837d AM |
11960 | |
| 11961 | if (local_syms != NULL | |
| 11962 | && (elf_symtab_hdr (isec->owner).contents | |
| 11963 | != (unsigned char *) local_syms)) | |
| 11964 | free (local_syms); | |
| 11965 | if (elf_section_data (isec)->relocs != relstart) | |
| 11966 | free (relstart); | |
| 9b5ecbd0 AM |
11967 | } |
| 11968 | ||
| 70cc837d AM |
11969 | if ((ret & 1) == 0 |
| 11970 | && isec->map_head.s != NULL | |
| 11971 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11972 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11973 | { | |
| 11974 | if (isec->map_head.s->has_toc_reloc | |
| 11975 | || isec->map_head.s->makes_toc_func_call) | |
| 11976 | ret = 1; | |
| 11977 | else if (!isec->map_head.s->call_check_done) | |
| 11978 | { | |
| 11979 | int recur; | |
| 11980 | isec->call_check_in_progress = 1; | |
| 11981 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11982 | isec->call_check_in_progress = 0; | |
| 11983 | if (recur != 0) | |
| 11984 | ret = recur; | |
| 11985 | } | |
| 11986 | } | |
| 11987 | ||
| 11988 | if (ret == 1) | |
| 11989 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11990 | |
| 9b5ecbd0 AM |
11991 | return ret; |
| 11992 | } | |
| 11993 | ||
| 721956f4 AM |
11994 | /* The linker repeatedly calls this function for each input section, |
| 11995 | in the order that input sections are linked into output sections. | |
| 11996 | Build lists of input sections to determine groupings between which | |
| 11997 | we may insert linker stubs. */ | |
| 11998 | ||
| 9b5ecbd0 | 11999 | bfd_boolean |
| 4ce794b7 | 12000 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12001 | { |
| 12002 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12003 | ||
| 4dfe6ac6 NC |
12004 | if (htab == NULL) |
| 12005 | return FALSE; | |
| 12006 | ||
| 734b6cf9 | 12007 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12008 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12009 | { |
| 3d6f9012 AM |
12010 | /* This happens to make the list in reverse order, |
| 12011 | which is what we want. */ | |
| 6f20ed8a AM |
12012 | htab->sec_info[isec->id].u.list |
| 12013 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12014 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12015 | } |
| ad8e1ba5 | 12016 | |
| 4c52953f | 12017 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12018 | { |
| 8b974ba3 AM |
12019 | /* Analyse sections that aren't already flagged as needing a |
| 12020 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12021 | .fixup contains branches, but only back to the function that | |
| 12022 | hit an exception. */ | |
| 12023 | if (!(isec->has_toc_reloc | |
| 12024 | || (isec->flags & SEC_CODE) == 0 | |
| 12025 | || strcmp (isec->name, ".fixup") == 0 | |
| 12026 | || isec->call_check_done)) | |
| 12027 | { | |
| 12028 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12029 | return FALSE; |
| 8b974ba3 AM |
12030 | } |
| 12031 | /* Make all sections use the TOC assigned for this object file. | |
| 12032 | This will be wrong for pasted sections; We fix that in | |
| 12033 | check_pasted_section(). */ | |
| 12034 | if (elf_gp (isec->owner) != 0) | |
| 12035 | htab->toc_curr = elf_gp (isec->owner); | |
| 12036 | } | |
| 12037 | ||
| 6f20ed8a | 12038 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12039 | return TRUE; |
| 721956f4 AM |
12040 | } |
| 12041 | ||
| 70cc837d AM |
12042 | /* Check that all .init and .fini sections use the same toc, if they |
| 12043 | have toc relocs. */ | |
| 12044 | ||
| 12045 | static bfd_boolean | |
| 12046 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12047 | { | |
| 12048 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12049 | ||
| 12050 | if (o != NULL) | |
| 12051 | { | |
| 12052 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12053 | bfd_vma toc_off = 0; | |
| 12054 | asection *i; | |
| 12055 | ||
| 12056 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12057 | if (i->has_toc_reloc) | |
| 12058 | { | |
| 12059 | if (toc_off == 0) | |
| 6f20ed8a AM |
12060 | toc_off = htab->sec_info[i->id].toc_off; |
| 12061 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12062 | return FALSE; |
| 12063 | } | |
| 6683a28d AM |
12064 | |
| 12065 | if (toc_off == 0) | |
| 12066 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12067 | if (i->makes_toc_func_call) | |
| 12068 | { | |
| 6f20ed8a | 12069 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12070 | break; |
| 12071 | } | |
| 12072 | ||
| 70cc837d AM |
12073 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12074 | if (toc_off != 0) | |
| 12075 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12076 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12077 | } |
| 12078 | return TRUE; | |
| 12079 | } | |
| 12080 | ||
| 12081 | bfd_boolean | |
| 12082 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12083 | { | |
| 12084 | return (check_pasted_section (info, ".init") | |
| 12085 | & check_pasted_section (info, ".fini")); | |
| 12086 | } | |
| 12087 | ||
| 721956f4 AM |
12088 | /* See whether we can group stub sections together. Grouping stub |
| 12089 | sections may result in fewer stubs. More importantly, we need to | |
| 12090 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12091 | .fini output sections respectively, because glibc splits the | |
| 12092 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12093 | the middle of a function is not a good idea. */ | |
| 12094 | ||
| 6f20ed8a AM |
12095 | static bfd_boolean |
| 12096 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12097 | bfd_size_type stub_group_size, |
| 12098 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12099 | { |
| 6f20ed8a AM |
12100 | struct ppc_link_hash_table *htab; |
| 12101 | asection *osec; | |
| 7c8fe5c4 AM |
12102 | bfd_boolean suppress_size_errors; |
| 12103 | ||
| 6f20ed8a AM |
12104 | htab = ppc_hash_table (info); |
| 12105 | if (htab == NULL) | |
| 12106 | return FALSE; | |
| 12107 | ||
| 7c8fe5c4 | 12108 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12109 | if (stub_group_size == 1) |
| 12110 | { | |
| 12111 | /* Default values. */ | |
| 12112 | if (stubs_always_before_branch) | |
| 09f92717 | 12113 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12114 | else |
| 09f92717 | 12115 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12116 | suppress_size_errors = TRUE; |
| 12117 | } | |
| 12118 | ||
| 6f20ed8a | 12119 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12120 | { |
| 6f20ed8a AM |
12121 | asection *tail; |
| 12122 | ||
| 12123 | if (osec->id >= htab->sec_info_arr_size) | |
| 12124 | continue; | |
| 12125 | ||
| 12126 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12127 | while (tail != NULL) |
| 721956f4 | 12128 | { |
| 734b6cf9 AM |
12129 | asection *curr; |
| 12130 | asection *prev; | |
| 12131 | bfd_size_type total; | |
| 12132 | bfd_boolean big_sec; | |
| 12133 | bfd_vma curr_toc; | |
| 6f20ed8a | 12134 | struct map_stub *group; |
| 09f92717 | 12135 | bfd_size_type group_size; |
| 734b6cf9 AM |
12136 | |
| 12137 | curr = tail; | |
| eea6121a | 12138 | total = tail->size; |
| 09f92717 AM |
12139 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12140 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12141 | ? stub_group_size >> 10 : stub_group_size); | |
| 12142 | ||
| 12143 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12144 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12145 | /* xgettext:c-format */ |
| 871b3ab2 | 12146 | _bfd_error_handler (_("%pB section %pA exceeds stub group size"), |
| 4eca0228 | 12147 | tail->owner, tail); |
| 6f20ed8a | 12148 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12149 | |
| 6f20ed8a | 12150 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12151 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12152 | < (ppc64_elf_section_data (prev) != NULL |
| 12153 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12154 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12155 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12156 | curr = prev; |
| 12157 | ||
| 12158 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12159 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12160 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12161 | group_size, in which case we may be toast.) We should |
| 12162 | really be keeping track of the total size of stubs added | |
| 12163 | here, as stubs contribute to the final output section | |
| 12164 | size. That's a little tricky, and this way will only | |
| 12165 | break if stubs added make the total size more than 2^25, | |
| 12166 | ie. for the default stub_group_size, if stubs total more | |
| 12167 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12168 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12169 | if (group == NULL) | |
| 12170 | return FALSE; | |
| 12171 | group->link_sec = curr; | |
| 12172 | group->stub_sec = NULL; | |
| a4b6fadd | 12173 | group->needs_save_res = 0; |
| d4aaa2a0 | 12174 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12175 | group->next = htab->group; |
| 12176 | htab->group = group; | |
| 734b6cf9 | 12177 | do |
| 721956f4 | 12178 | { |
| 6f20ed8a | 12179 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12180 | /* Set up this stub group. */ |
| 6f20ed8a | 12181 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12182 | } |
| 734b6cf9 AM |
12183 | while (tail != curr && (tail = prev) != NULL); |
| 12184 | ||
| 09f92717 | 12185 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12186 | bytes before the stub section can be handled by it too. |
| 12187 | Don't do this if we have a really large section after the | |
| 12188 | stubs, as adding more stubs increases the chance that | |
| 12189 | branches may not reach into the stub section. */ | |
| 12190 | if (!stubs_always_before_branch && !big_sec) | |
| 12191 | { | |
| 12192 | total = 0; | |
| 12193 | while (prev != NULL | |
| 12194 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12195 | < (ppc64_elf_section_data (prev) != NULL |
| 12196 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12197 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12198 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12199 | { |
| 12200 | tail = prev; | |
| 6f20ed8a AM |
12201 | prev = htab->sec_info[tail->id].u.list; |
| 12202 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12203 | } |
| 12204 | } | |
| 12205 | tail = prev; | |
| 721956f4 AM |
12206 | } |
| 12207 | } | |
| 6f20ed8a | 12208 | return TRUE; |
| 721956f4 AM |
12209 | } |
| 12210 | ||
| 58d180e8 AM |
12211 | static const unsigned char glink_eh_frame_cie[] = |
| 12212 | { | |
| 12213 | 0, 0, 0, 16, /* length. */ | |
| 12214 | 0, 0, 0, 0, /* id. */ | |
| 12215 | 1, /* CIE version. */ | |
| 12216 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12217 | 4, /* Code alignment. */ | |
| 12218 | 0x78, /* Data alignment. */ | |
| 12219 | 65, /* RA reg. */ | |
| 12220 | 1, /* Augmentation size. */ | |
| 12221 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12222 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12223 | }; |
| 12224 | ||
| d4aaa2a0 AM |
12225 | static size_t |
| 12226 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12227 | { | |
| 12228 | size_t this_size = 17; | |
| 12229 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12230 | { | |
| 12231 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12232 | if (to_bctrl < 64) | |
| 12233 | this_size += 1; | |
| 12234 | else if (to_bctrl < 256) | |
| 12235 | this_size += 2; | |
| 12236 | else if (to_bctrl < 65536) | |
| 12237 | this_size += 3; | |
| 12238 | else | |
| 12239 | this_size += 5; | |
| 12240 | this_size += 6; | |
| 12241 | } | |
| 12242 | this_size = (this_size + align - 1) & -align; | |
| 12243 | return this_size; | |
| 12244 | } | |
| 12245 | ||
| d969d15f AM |
12246 | /* Stripping output sections is normally done before dynamic section |
| 12247 | symbols have been allocated. This function is called later, and | |
| 12248 | handles cases like htab->brlt which is mapped to its own output | |
| 12249 | section. */ | |
| 12250 | ||
| 12251 | static void | |
| 12252 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12253 | { | |
| 12254 | if (isec->size == 0 | |
| 12255 | && isec->output_section->size == 0 | |
| 53d8967a | 12256 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12257 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12258 | isec->output_section) | |
| 12259 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12260 | { | |
| 12261 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12262 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12263 | info->output_bfd->section_count--; | |
| 12264 | } | |
| 12265 | } | |
| 12266 | ||
| 721956f4 AM |
12267 | /* Determine and set the size of the stub section for a final link. |
| 12268 | ||
| 12269 | The basic idea here is to examine all the relocations looking for | |
| 12270 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12271 | instruction. */ | |
| 12272 | ||
| b34976b6 | 12273 | bfd_boolean |
| e7d1c40c | 12274 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12275 | { |
| 12276 | bfd_size_type stub_group_size; | |
| b34976b6 | 12277 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12278 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12279 | ||
| 4dfe6ac6 NC |
12280 | if (htab == NULL) |
| 12281 | return FALSE; | |
| 12282 | ||
| 0e1862bb | 12283 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12284 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12285 | if (!htab->opd_abi) |
| e7d1c40c AM |
12286 | htab->params->plt_thread_safe = 0; |
| 12287 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12288 | { |
| e2458743 | 12289 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12290 | { |
| 12291 | "pthread_create", | |
| 12292 | /* libstdc++ */ | |
| 12293 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12294 | /* librt */ | |
| 12295 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12296 | "mq_notify", "create_timer", | |
| 12297 | /* libanl */ | |
| 12298 | "getaddrinfo_a", | |
| 12299 | /* libgomp */ | |
| 2300b5a1 | 12300 | "GOMP_parallel", |
| 794e51c0 | 12301 | "GOMP_parallel_start", |
| 2300b5a1 | 12302 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12303 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12304 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12305 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12306 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12307 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12308 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12309 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12310 | "GOMP_parallel_sections", |
| 68ffbac6 | 12311 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12312 | /* libgo */ |
| 12313 | "__go_go", | |
| 794e51c0 AM |
12314 | }; |
| 12315 | unsigned i; | |
| 12316 | ||
| a4b6fadd | 12317 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12318 | { |
| 12319 | struct elf_link_hash_entry *h; | |
| 12320 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12321 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12322 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12323 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12324 | break; |
| 12325 | } | |
| 12326 | } | |
| e7d1c40c AM |
12327 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12328 | if (htab->params->group_size < 0) | |
| 12329 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12330 | else |
| e7d1c40c | 12331 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12332 | |
| 6f20ed8a AM |
12333 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12334 | return FALSE; | |
| 721956f4 | 12335 | |
| c9301e31 AM |
12336 | #define STUB_SHRINK_ITER 20 |
| 12337 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12338 | exit on a stub section shrinking. This is to break out of a | |
| 12339 | pathological case where adding stubs on one iteration decreases | |
| 12340 | section gaps (perhaps due to alignment), which then requires | |
| 12341 | fewer or smaller stubs on the next iteration. */ | |
| 12342 | ||
| 721956f4 AM |
12343 | while (1) |
| 12344 | { | |
| 12345 | bfd *input_bfd; | |
| 12346 | unsigned int bfd_indx; | |
| a4b6fadd | 12347 | struct map_stub *group; |
| 721956f4 AM |
12348 | |
| 12349 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12350 | |
| 12351 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12352 | input_bfd != NULL; | |
| c72f2fb2 | 12353 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12354 | { |
| 12355 | Elf_Internal_Shdr *symtab_hdr; | |
| 12356 | asection *section; | |
| 6cdc0ccc | 12357 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12358 | |
| 0c8d6e5c | 12359 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12360 | continue; |
| 12361 | ||
| 721956f4 | 12362 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12363 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12364 | if (symtab_hdr->sh_info == 0) |
| 12365 | continue; | |
| 12366 | ||
| 721956f4 AM |
12367 | /* Walk over each section attached to the input bfd. */ |
| 12368 | for (section = input_bfd->sections; | |
| 12369 | section != NULL; | |
| 12370 | section = section->next) | |
| 12371 | { | |
| 721956f4 | 12372 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12373 | |
| 12374 | /* If there aren't any relocs, then there's nothing more | |
| 12375 | to do. */ | |
| 12376 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12377 | || (section->flags & SEC_ALLOC) == 0 |
| 12378 | || (section->flags & SEC_LOAD) == 0 | |
| 12379 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12380 | || section->reloc_count == 0) |
| 12381 | continue; | |
| 12382 | ||
| 12383 | /* If this section is a link-once section that will be | |
| 12384 | discarded, then don't create any stubs. */ | |
| 12385 | if (section->output_section == NULL | |
| 927be08e | 12386 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12387 | continue; |
| 12388 | ||
| 1e2f5b6e AM |
12389 | /* Get the relocs. */ |
| 12390 | internal_relocs | |
| 4ce794b7 | 12391 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12392 | info->keep_memory); |
| 721956f4 | 12393 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12394 | goto error_ret_free_local; |
| 721956f4 AM |
12395 | |
| 12396 | /* Now examine each relocation. */ | |
| 12397 | irela = internal_relocs; | |
| 12398 | irelaend = irela + section->reloc_count; | |
| 12399 | for (; irela < irelaend; irela++) | |
| 12400 | { | |
| 4ce794b7 AM |
12401 | enum elf_ppc64_reloc_type r_type; |
| 12402 | unsigned int r_indx; | |
| 721956f4 AM |
12403 | enum ppc_stub_type stub_type; |
| 12404 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12405 | asection *sym_sec, *code_sec; |
| e054468f | 12406 | bfd_vma sym_value, code_value; |
| 721956f4 | 12407 | bfd_vma destination; |
| 6911b7dc | 12408 | unsigned long local_off; |
| 8843416a | 12409 | bfd_boolean ok_dest; |
| 721956f4 | 12410 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12411 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12412 | struct elf_link_hash_entry *h; |
| 12413 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12414 | char *stub_name; |
| 12415 | const asection *id_sec; | |
| 74f0fb50 | 12416 | struct _opd_sec_data *opd; |
| e054468f | 12417 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12418 | |
| 12419 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12420 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12421 | ||
| 4ce794b7 | 12422 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12423 | { |
| 12424 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12425 | goto error_ret_free_internal; |
| 721956f4 AM |
12426 | } |
| 12427 | ||
| 12428 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12429 | if (r_type != R_PPC64_REL24 |
| 12430 | && r_type != R_PPC64_REL14 | |
| 12431 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12432 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12433 | continue; |
| 12434 | ||
| 12435 | /* Now determine the call target, its name, value, | |
| 12436 | section. */ | |
| 411e1bfb AM |
12437 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12438 | r_indx, input_bfd)) | |
| 12439 | goto error_ret_free_internal; | |
| 12440 | hash = (struct ppc_link_hash_entry *) h; | |
| 12441 | ||
| 8843416a | 12442 | ok_dest = FALSE; |
| 8387904d | 12443 | fdh = NULL; |
| 7fe2b9a6 | 12444 | sym_value = 0; |
| 411e1bfb | 12445 | if (hash == NULL) |
| 721956f4 | 12446 | { |
| 411e1bfb | 12447 | sym_value = sym->st_value; |
| c27b8c2a AM |
12448 | if (sym_sec != NULL |
| 12449 | && sym_sec->output_section != NULL) | |
| 12450 | ok_dest = TRUE; | |
| 721956f4 | 12451 | } |
| 7fe2b9a6 AM |
12452 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12453 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12454 | { | |
| 12455 | sym_value = hash->elf.root.u.def.value; | |
| 12456 | if (sym_sec->output_section != NULL) | |
| 12457 | ok_dest = TRUE; | |
| 12458 | } | |
| 12459 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12460 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12461 | { |
| 99877b66 | 12462 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12463 | use the func descriptor sym instead if it is |
| 12464 | defined. */ | |
| ceb1f1ef | 12465 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12466 | && hash->oh != NULL) |
| 8387904d | 12467 | { |
| 8c5b4e52 | 12468 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12469 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12470 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12471 | { | |
| 12472 | sym_sec = fdh->elf.root.u.def.section; | |
| 12473 | sym_value = fdh->elf.root.u.def.value; | |
| 12474 | if (sym_sec->output_section != NULL) | |
| 12475 | ok_dest = TRUE; | |
| 12476 | } | |
| 99877b66 AM |
12477 | else |
| 12478 | fdh = NULL; | |
| 8387904d | 12479 | } |
| 7fe2b9a6 AM |
12480 | } |
| 12481 | else | |
| 12482 | { | |
| 12483 | bfd_set_error (bfd_error_bad_value); | |
| 12484 | goto error_ret_free_internal; | |
| 721956f4 AM |
12485 | } |
| 12486 | ||
| 8843416a | 12487 | destination = 0; |
| 6911b7dc | 12488 | local_off = 0; |
| 8843416a AM |
12489 | if (ok_dest) |
| 12490 | { | |
| 12491 | sym_value += irela->r_addend; | |
| 12492 | destination = (sym_value | |
| 12493 | + sym_sec->output_offset | |
| 12494 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12495 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12496 | ? hash->elf.other | |
| 12497 | : sym->st_other); | |
| 8843416a AM |
12498 | } |
| 12499 | ||
| 8387904d | 12500 | code_sec = sym_sec; |
| e054468f | 12501 | code_value = sym_value; |
| 74f0fb50 AM |
12502 | opd = get_opd_info (sym_sec); |
| 12503 | if (opd != NULL) | |
| 8387904d AM |
12504 | { |
| 12505 | bfd_vma dest; | |
| 12506 | ||
| 74f0fb50 | 12507 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12508 | { |
| 51aecdc5 | 12509 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12510 | if (adjust == -1) |
| 12511 | continue; | |
| e054468f | 12512 | code_value += adjust; |
| 8387904d AM |
12513 | sym_value += adjust; |
| 12514 | } | |
| 12515 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12516 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12517 | if (dest != (bfd_vma) -1) |
| 12518 | { | |
| 12519 | destination = dest; | |
| 12520 | if (fdh != NULL) | |
| 12521 | { | |
| 12522 | /* Fixup old ABI sym to point at code | |
| 12523 | entry. */ | |
| 99877b66 | 12524 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12525 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12526 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12527 | } |
| 12528 | } | |
| 12529 | } | |
| 12530 | ||
| 721956f4 | 12531 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12532 | plt_ent = NULL; |
| 721956f4 | 12533 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12534 | &plt_ent, destination, |
| 12535 | local_off); | |
| ad8e1ba5 AM |
12536 | |
| 12537 | if (stub_type != ppc_stub_plt_call) | |
| 12538 | { | |
| 12539 | /* Check whether we need a TOC adjusting stub. | |
| 12540 | Since the linker pastes together pieces from | |
| 12541 | different object files when creating the | |
| 12542 | _init and _fini functions, it may be that a | |
| 12543 | call to what looks like a local sym is in | |
| 12544 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12545 | if (code_sec != NULL |
| 12546 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12547 | && (htab->sec_info[code_sec->id].toc_off |
| 12548 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12549 | && (code_sec->has_toc_reloc |
| 12550 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12551 | stub_type = ppc_stub_long_branch_r2off; |
| 12552 | } | |
| 12553 | ||
| 721956f4 AM |
12554 | if (stub_type == ppc_stub_none) |
| 12555 | continue; | |
| 12556 | ||
| 411e1bfb AM |
12557 | /* __tls_get_addr calls might be eliminated. */ |
| 12558 | if (stub_type != ppc_stub_plt_call | |
| 12559 | && hash != NULL | |
| 8387904d AM |
12560 | && (hash == htab->tls_get_addr |
| 12561 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12562 | && section->has_tls_reloc |
| 12563 | && irela != internal_relocs) | |
| 12564 | { | |
| 12565 | /* Get tls info. */ | |
| f961d9dd | 12566 | unsigned char *tls_mask; |
| 411e1bfb | 12567 | |
| 3a71aa26 | 12568 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12569 | irela - 1, input_bfd)) |
| 12570 | goto error_ret_free_internal; | |
| e7b938ca | 12571 | if (*tls_mask != 0) |
| 411e1bfb AM |
12572 | continue; |
| 12573 | } | |
| 12574 | ||
| f378ab09 | 12575 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12576 | { |
| 6e1816be AM |
12577 | if (!htab->opd_abi |
| 12578 | && htab->params->plt_localentry0 != 0 | |
| 12579 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12580 | htab->has_plt_localentry0 = 1; | |
| 12581 | else if (irela + 1 < irelaend | |
| 12582 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12583 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12584 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12585 | { |
| 12586 | if (!tocsave_find (htab, INSERT, | |
| 12587 | &local_syms, irela + 1, input_bfd)) | |
| 12588 | goto error_ret_free_internal; | |
| 12589 | } | |
| f378ab09 AM |
12590 | else |
| 12591 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12592 | } |
| 3b421ab3 | 12593 | |
| 721956f4 | 12594 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12595 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12596 | |
| 12597 | /* Get the name of this stub. */ | |
| 12598 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12599 | if (!stub_name) | |
| 12600 | goto error_ret_free_internal; | |
| 12601 | ||
| 12602 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12603 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12604 | if (stub_entry != NULL) |
| 12605 | { | |
| 12606 | /* The proper stub has already been created. */ | |
| 12607 | free (stub_name); | |
| 794e51c0 AM |
12608 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12609 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12610 | continue; |
| 12611 | } | |
| 12612 | ||
| 25f53a85 | 12613 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12614 | if (stub_entry == NULL) |
| 12615 | { | |
| 12616 | free (stub_name); | |
| 6cdc0ccc AM |
12617 | error_ret_free_internal: |
| 12618 | if (elf_section_data (section)->relocs == NULL) | |
| 12619 | free (internal_relocs); | |
| 12620 | error_ret_free_local: | |
| 12621 | if (local_syms != NULL | |
| 12622 | && (symtab_hdr->contents | |
| 12623 | != (unsigned char *) local_syms)) | |
| 12624 | free (local_syms); | |
| b34976b6 | 12625 | return FALSE; |
| 721956f4 AM |
12626 | } |
| 12627 | ||
| ad8e1ba5 | 12628 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12629 | if (stub_type != ppc_stub_plt_call |
| 12630 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12631 | { |
| 12632 | stub_entry->target_value = code_value; | |
| 12633 | stub_entry->target_section = code_sec; | |
| 12634 | } | |
| 12635 | else | |
| 12636 | { | |
| 12637 | stub_entry->target_value = sym_value; | |
| 12638 | stub_entry->target_section = sym_sec; | |
| 12639 | } | |
| 721956f4 | 12640 | stub_entry->h = hash; |
| e054468f | 12641 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12642 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12643 | |
| 12644 | if (stub_entry->h != NULL) | |
| 12645 | htab->stub_globals += 1; | |
| 721956f4 AM |
12646 | } |
| 12647 | ||
| 12648 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12649 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12650 | free (internal_relocs); |
| 721956f4 | 12651 | } |
| 6cdc0ccc AM |
12652 | |
| 12653 | if (local_syms != NULL | |
| 12654 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12655 | { | |
| 12656 | if (!info->keep_memory) | |
| 12657 | free (local_syms); | |
| 12658 | else | |
| 12659 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12660 | } | |
| 721956f4 AM |
12661 | } |
| 12662 | ||
| 5c3dead3 | 12663 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12664 | stub sections. */ |
| d4aaa2a0 AM |
12665 | for (group = htab->group; group != NULL; group = group->next) |
| 12666 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12667 | { |
| d4aaa2a0 AM |
12668 | asection *stub_sec = group->stub_sec; |
| 12669 | ||
| ea3d7d1c AM |
12670 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12671 | || stub_sec->rawsize < stub_sec->size) | |
| 12672 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12673 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12674 | stub_sec->size = 0; |
| 12675 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12676 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12677 | } |
| eea6121a | 12678 | |
| ba21f564 AM |
12679 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12680 | || htab->brlt->rawsize < htab->brlt->size) | |
| 12681 | htab->brlt->rawsize = htab->brlt->size; | |
| eea6121a | 12682 | htab->brlt->size = 0; |
| 84f5d08e AM |
12683 | htab->brlt->reloc_count = 0; |
| 12684 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12685 | if (htab->relbrlt != NULL) |
| eea6121a | 12686 | htab->relbrlt->size = 0; |
| 721956f4 | 12687 | |
| 63bc6f6c | 12688 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12689 | |
| a4b6fadd AM |
12690 | for (group = htab->group; group != NULL; group = group->next) |
| 12691 | if (group->needs_save_res) | |
| 12692 | group->stub_sec->size += htab->sfpr->size; | |
| 12693 | ||
| 176a0d42 AM |
12694 | if (info->emitrelocations |
| 12695 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12696 | { | |
| 12697 | htab->glink->reloc_count = 1; | |
| 12698 | htab->glink->flags |= SEC_RELOC; | |
| 12699 | } | |
| 12700 | ||
| 58d180e8 AM |
12701 | if (htab->glink_eh_frame != NULL |
| 12702 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 2d0d44d5 | 12703 | && htab->glink_eh_frame->output_section->size > 8) |
| 58d180e8 | 12704 | { |
| 2e0ce1c8 | 12705 | size_t size = 0, align = 4; |
| 58d180e8 | 12706 | |
| d4aaa2a0 AM |
12707 | for (group = htab->group; group != NULL; group = group->next) |
| 12708 | if (group->stub_sec != NULL) | |
| 12709 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 12710 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 12711 | size += (24 + align - 1) & -align; |
| 58d180e8 | 12712 | if (size != 0) |
| 2e0ce1c8 AM |
12713 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 12714 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 12715 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
12716 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12717 | htab->glink_eh_frame->size = size; | |
| 12718 | } | |
| 12719 | ||
| e7d1c40c | 12720 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
12721 | for (group = htab->group; group != NULL; group = group->next) |
| 12722 | if (group->stub_sec != NULL) | |
| 691d2e9a AM |
12723 | { |
| 12724 | int align = abs (htab->params->plt_stub_align); | |
| 12725 | group->stub_sec->size | |
| 12726 | = (group->stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 12727 | } | |
| d4aaa2a0 AM |
12728 | |
| 12729 | for (group = htab->group; group != NULL; group = group->next) | |
| 12730 | if (group->stub_sec != NULL | |
| 12731 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 12732 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 12733 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
12734 | break; |
| 12735 | ||
| d4aaa2a0 | 12736 | if (group == NULL |
| ba21f564 AM |
12737 | && (htab->brlt->rawsize == htab->brlt->size |
| 12738 | || (htab->stub_iteration > STUB_SHRINK_ITER | |
| 12739 | && htab->brlt->rawsize > htab->brlt->size)) | |
| 58d180e8 AM |
12740 | && (htab->glink_eh_frame == NULL |
| 12741 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12742 | break; |
| 12743 | ||
| 721956f4 | 12744 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12745 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12746 | } |
| 12747 | ||
| da44f4e5 AM |
12748 | if (htab->glink_eh_frame != NULL |
| 12749 | && htab->glink_eh_frame->size != 0) | |
| 12750 | { | |
| 12751 | bfd_vma val; | |
| 12752 | bfd_byte *p, *last_fde; | |
| 12753 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 12754 | struct map_stub *group; |
| da44f4e5 AM |
12755 | |
| 12756 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12757 | if (p == NULL) | |
| 12758 | return FALSE; | |
| 12759 | htab->glink_eh_frame->contents = p; | |
| 12760 | last_fde = p; | |
| 2e0ce1c8 | 12761 | align = 4; |
| da44f4e5 AM |
12762 | |
| 12763 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12764 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 12765 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 12766 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 12767 | p += last_fde_len + 4; |
| da44f4e5 | 12768 | |
| d4aaa2a0 AM |
12769 | for (group = htab->group; group != NULL; group = group->next) |
| 12770 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
12771 | { |
| 12772 | last_fde = p; | |
| d4aaa2a0 | 12773 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 12774 | /* FDE length. */ |
| 2e0ce1c8 | 12775 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12776 | p += 4; |
| 12777 | /* CIE pointer. */ | |
| 12778 | val = p - htab->glink_eh_frame->contents; | |
| 12779 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12780 | p += 4; | |
| 12781 | /* Offset to stub section, written later. */ | |
| 12782 | p += 4; | |
| 12783 | /* stub section size. */ | |
| d4aaa2a0 | 12784 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
12785 | p += 4; |
| 12786 | /* Augmentation. */ | |
| 12787 | p += 1; | |
| d4aaa2a0 AM |
12788 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 12789 | { | |
| 12790 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12791 | ||
| 12792 | /* This FDE needs more than just the default. | |
| 12793 | Describe __tls_get_addr_opt stub LR. */ | |
| 12794 | if (to_bctrl < 64) | |
| 12795 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 12796 | else if (to_bctrl < 256) | |
| 12797 | { | |
| 12798 | *p++ = DW_CFA_advance_loc1; | |
| 12799 | *p++ = to_bctrl; | |
| 12800 | } | |
| 12801 | else if (to_bctrl < 65536) | |
| 12802 | { | |
| 12803 | *p++ = DW_CFA_advance_loc2; | |
| 12804 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 12805 | p += 2; | |
| 12806 | } | |
| 12807 | else | |
| 12808 | { | |
| 12809 | *p++ = DW_CFA_advance_loc4; | |
| 12810 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 12811 | p += 4; | |
| 12812 | } | |
| 12813 | *p++ = DW_CFA_offset_extended_sf; | |
| 12814 | *p++ = 65; | |
| 12815 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 12816 | *p++ = DW_CFA_advance_loc + 4; | |
| 12817 | *p++ = DW_CFA_restore_extended; | |
| 12818 | *p++ = 65; | |
| 12819 | } | |
| da44f4e5 | 12820 | /* Pad. */ |
| d4aaa2a0 | 12821 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
12822 | } |
| 12823 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12824 | { | |
| 12825 | last_fde = p; | |
| 2e0ce1c8 | 12826 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 12827 | /* FDE length. */ |
| 2e0ce1c8 | 12828 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12829 | p += 4; |
| 12830 | /* CIE pointer. */ | |
| 12831 | val = p - htab->glink_eh_frame->contents; | |
| 12832 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12833 | p += 4; | |
| 12834 | /* Offset to .glink, written later. */ | |
| 12835 | p += 4; | |
| 12836 | /* .glink size. */ | |
| 12837 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12838 | p += 4; | |
| 12839 | /* Augmentation. */ | |
| 12840 | p += 1; | |
| 12841 | ||
| 12842 | *p++ = DW_CFA_advance_loc + 1; | |
| 12843 | *p++ = DW_CFA_register; | |
| 12844 | *p++ = 65; | |
| 9f08fa5c | 12845 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 12846 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
12847 | *p++ = DW_CFA_restore_extended; |
| 12848 | *p++ = 65; | |
| 2e0ce1c8 | 12849 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
12850 | } |
| 12851 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12852 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12853 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 12854 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 12855 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 12856 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
12857 | htab->glink_eh_frame->size = size + pad; |
| 12858 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12859 | } | |
| 12860 | ||
| d969d15f AM |
12861 | maybe_strip_output (info, htab->brlt); |
| 12862 | if (htab->glink_eh_frame != NULL) | |
| 12863 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12864 | |
| b34976b6 | 12865 | return TRUE; |
| 721956f4 AM |
12866 | } |
| 12867 | ||
| 12868 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12869 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12870 | |
| 805fc799 | 12871 | bfd_vma |
| 1c865ab2 | 12872 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12873 | { |
| 805fc799 | 12874 | asection *s; |
| a27e685f | 12875 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12876 | |
| 43417696 AM |
12877 | if (info != NULL) |
| 12878 | { | |
| 12879 | struct elf_link_hash_entry *h; | |
| 12880 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12881 | ||
| 12882 | if (is_elf_hash_table (htab) | |
| 12883 | && htab->hgot != NULL) | |
| 12884 | h = htab->hgot; | |
| 12885 | else | |
| 12886 | { | |
| 12887 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12888 | if (is_elf_hash_table (htab)) | |
| 12889 | htab->hgot = h; | |
| 12890 | } | |
| 12891 | if (h != NULL | |
| 12892 | && h->root.type == bfd_link_hash_defined | |
| 12893 | && !h->root.linker_def | |
| 12894 | && (!is_elf_hash_table (htab) | |
| 12895 | || h->def_regular)) | |
| 12896 | { | |
| 12897 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12898 | + h->root.u.def.section->output_offset | |
| 12899 | + h->root.u.def.section->output_section->vma); | |
| 12900 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12901 | return TOCstart; | |
| 12902 | } | |
| 12903 | } | |
| 12904 | ||
| 805fc799 AM |
12905 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12906 | order. The TOC starts where the first of these sections starts. */ | |
| 12907 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12908 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12909 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12910 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12911 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12912 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12913 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12914 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12915 | { |
| 12916 | /* This may happen for | |
| 12917 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12918 | .toc directive | |
| 12919 | o bad linker script | |
| 12920 | o --gc-sections and empty TOC sections | |
| 12921 | ||
| 12922 | FIXME: Warn user? */ | |
| 12923 | ||
| 12924 | /* Look for a likely section. We probably won't even be | |
| 12925 | using TOCstart. */ | |
| 12926 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12927 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12928 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12929 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12930 | break; | |
| 721956f4 | 12931 | if (s == NULL) |
| 805fc799 | 12932 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12933 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12934 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12935 | break; | |
| 721956f4 | 12936 | if (s == NULL) |
| 805fc799 | 12937 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12938 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12939 | == SEC_ALLOC) | |
| 805fc799 | 12940 | break; |
| 721956f4 | 12941 | if (s == NULL) |
| 805fc799 | 12942 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12943 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12944 | break; |
| 12945 | } | |
| 721956f4 | 12946 | |
| 805fc799 AM |
12947 | TOCstart = 0; |
| 12948 | if (s != NULL) | |
| 12949 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12950 | |
| a27e685f AM |
12951 | /* Force alignment. */ |
| 12952 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12953 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12954 | _bfd_set_gp_value (obfd, TOCstart); |
| 12955 | ||
| 810d4e75 | 12956 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12957 | { |
| 12958 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12959 | ||
| 810d4e75 AM |
12960 | if (htab != NULL) |
| 12961 | { | |
| 12962 | if (htab->elf.hgot != NULL) | |
| 12963 | { | |
| a27e685f | 12964 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12965 | htab->elf.hgot->root.u.def.section = s; |
| 12966 | } | |
| 12967 | } | |
| 12968 | else | |
| 1c865ab2 | 12969 | { |
| 810d4e75 AM |
12970 | struct bfd_link_hash_entry *bh = NULL; |
| 12971 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12972 | s, TOC_BASE_OFF - adjust, |
| 12973 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12974 | } |
| 12975 | } | |
| 805fc799 | 12976 | return TOCstart; |
| 721956f4 AM |
12977 | } |
| 12978 | ||
| a345bc8d AM |
12979 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12980 | write out any global entry stubs. */ | |
| 12981 | ||
| 12982 | static bfd_boolean | |
| 12983 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12984 | { | |
| 12985 | struct bfd_link_info *info; | |
| 12986 | struct ppc_link_hash_table *htab; | |
| 12987 | struct plt_entry *pent; | |
| 12988 | asection *s; | |
| 12989 | ||
| 12990 | if (h->root.type == bfd_link_hash_indirect) | |
| 12991 | return TRUE; | |
| 12992 | ||
| 12993 | if (!h->pointer_equality_needed) | |
| 12994 | return TRUE; | |
| 12995 | ||
| 12996 | if (h->def_regular) | |
| 12997 | return TRUE; | |
| 12998 | ||
| 12999 | info = inf; | |
| 13000 | htab = ppc_hash_table (info); | |
| 13001 | if (htab == NULL) | |
| 13002 | return FALSE; | |
| 13003 | ||
| 9e390558 | 13004 | s = htab->global_entry; |
| a345bc8d AM |
13005 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) |
| 13006 | if (pent->plt.offset != (bfd_vma) -1 | |
| 13007 | && pent->addend == 0) | |
| 13008 | { | |
| 13009 | bfd_byte *p; | |
| 13010 | asection *plt; | |
| 13011 | bfd_vma off; | |
| 13012 | ||
| a345bc8d | 13013 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 13014 | plt = htab->elf.splt; |
| a345bc8d AM |
13015 | if (!htab->elf.dynamic_sections_created |
| 13016 | || h->dynindx == -1) | |
| 33e44f2e | 13017 | plt = htab->elf.iplt; |
| a345bc8d AM |
13018 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 13019 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 13020 | ||
| 13021 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13022 | { | |
| 13023 | info->callbacks->einfo | |
| c1c8c1ef | 13024 | (_("%P: linkage table error against `%pT'\n"), |
| a345bc8d AM |
13025 | h->root.root.string); |
| 13026 | bfd_set_error (bfd_error_bad_value); | |
| 13027 | htab->stub_error = TRUE; | |
| 13028 | } | |
| 13029 | ||
| 7341d5e2 AM |
13030 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13031 | if (htab->params->emit_stub_syms) | |
| 13032 | { | |
| 13033 | size_t len = strlen (h->root.root.string); | |
| 13034 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13035 | ||
| 13036 | if (name == NULL) | |
| 13037 | return FALSE; | |
| 13038 | ||
| 13039 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13040 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13041 | if (h == NULL) | |
| 13042 | return FALSE; | |
| 13043 | if (h->root.type == bfd_link_hash_new) | |
| 13044 | { | |
| 13045 | h->root.type = bfd_link_hash_defined; | |
| 13046 | h->root.u.def.section = s; | |
| 13047 | h->root.u.def.value = p - s->contents; | |
| 13048 | h->ref_regular = 1; | |
| 13049 | h->def_regular = 1; | |
| 13050 | h->ref_regular_nonweak = 1; | |
| 13051 | h->forced_local = 1; | |
| 13052 | h->non_elf = 0; | |
| 2ec55de3 | 13053 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13054 | } |
| 13055 | } | |
| 13056 | ||
| a345bc8d AM |
13057 | if (PPC_HA (off) != 0) |
| 13058 | { | |
| 13059 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13060 | p += 4; | |
| 13061 | } | |
| 13062 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13063 | p += 4; | |
| 13064 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13065 | p += 4; | |
| 407aa07c | 13066 | bfd_put_32 (s->owner, BCTR, p); |
| a345bc8d AM |
13067 | break; |
| 13068 | } | |
| 13069 | return TRUE; | |
| 13070 | } | |
| 13071 | ||
| 721956f4 AM |
13072 | /* Build all the stubs associated with the current output file. |
| 13073 | The stubs are kept in a hash table attached to the main linker | |
| 13074 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13075 | ||
| b34976b6 | 13076 | bfd_boolean |
| e7d1c40c | 13077 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13078 | char **stats) |
| 5d1634d7 AM |
13079 | { |
| 13080 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13081 | struct map_stub *group; |
| 721956f4 | 13082 | asection *stub_sec; |
| 5d1634d7 | 13083 | bfd_byte *p; |
| e717da7e | 13084 | int stub_sec_count = 0; |
| 5d1634d7 | 13085 | |
| 4dfe6ac6 NC |
13086 | if (htab == NULL) |
| 13087 | return FALSE; | |
| 13088 | ||
| eea6121a | 13089 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13090 | for (group = htab->group; group != NULL; group = group->next) |
| 13091 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13092 | && stub_sec->size != 0) |
| e717da7e | 13093 | { |
| e7d1c40c | 13094 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13095 | if (stub_sec->contents == NULL) |
| 13096 | return FALSE; | |
| eea6121a | 13097 | stub_sec->size = 0; |
| e717da7e | 13098 | } |
| 5d1634d7 | 13099 | |
| 23eb7e01 | 13100 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13101 | { |
| 9f951329 | 13102 | unsigned int indx; |
| ad8e1ba5 | 13103 | bfd_vma plt0; |
| 9f951329 | 13104 | |
| 721956f4 | 13105 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13106 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13107 | { |
| 13108 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13109 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13110 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13111 | if (h == NULL) |
| 13112 | return FALSE; | |
| 13113 | if (h->root.type == bfd_link_hash_new) | |
| 13114 | { | |
| 13115 | h->root.type = bfd_link_hash_defined; | |
| 13116 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13117 | h->root.u.def.value = 8; |
| f5385ebf AM |
13118 | h->ref_regular = 1; |
| 13119 | h->def_regular = 1; | |
| 13120 | h->ref_regular_nonweak = 1; | |
| 13121 | h->forced_local = 1; | |
| 13122 | h->non_elf = 0; | |
| 2ec55de3 | 13123 | h->root.linker_def = 1; |
| 97b639ba AM |
13124 | } |
| 13125 | } | |
| 33e44f2e AM |
13126 | plt0 = (htab->elf.splt->output_section->vma |
| 13127 | + htab->elf.splt->output_offset | |
| 13128 | - 16); | |
| 176a0d42 AM |
13129 | if (info->emitrelocations) |
| 13130 | { | |
| 13131 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13132 | if (r == NULL) | |
| 13133 | return FALSE; | |
| 13134 | r->r_offset = (htab->glink->output_offset | |
| 13135 | + htab->glink->output_section->vma); | |
| 13136 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13137 | r->r_addend = plt0; | |
| 13138 | } | |
| 4ce794b7 | 13139 | p = htab->glink->contents; |
| 176a0d42 | 13140 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13141 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13142 | p += 8; | |
| b9e5796b AM |
13143 | if (htab->opd_abi) |
| 13144 | { | |
| 13145 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13146 | p += 4; | |
| 13147 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13148 | p += 4; | |
| 13149 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13150 | p += 4; | |
| 13151 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13152 | p += 4; | |
| 13153 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13154 | p += 4; | |
| 13155 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13156 | p += 4; | |
| 13157 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13158 | p += 4; | |
| 13159 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13160 | p += 4; | |
| 13161 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13162 | p += 4; | |
| 13163 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13164 | p += 4; | |
| 13165 | } | |
| 13166 | else | |
| 13167 | { | |
| 13168 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13169 | p += 4; | |
| 13170 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13171 | p += 4; | |
| 13172 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13173 | p += 4; | |
| f378ab09 AM |
13174 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13175 | p += 4; | |
| b9e5796b AM |
13176 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13177 | p += 4; | |
| 13178 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13179 | p += 4; | |
| 13180 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13181 | p += 4; | |
| 13182 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13183 | p += 4; | |
| 13184 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13185 | p += 4; | |
| 13186 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13187 | p += 4; | |
| 13188 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13189 | p += 4; | |
| 13190 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13191 | p += 4; | |
| 13192 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13193 | p += 4; | |
| 13194 | } | |
| 407aa07c AM |
13195 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| 13196 | p += 4; | |
| c75bc4f7 | 13197 | BFD_ASSERT (p == htab->glink->contents + GLINK_PLTRESOLVE_SIZE (htab)); |
| ad8e1ba5 | 13198 | |
| 9f951329 AM |
13199 | /* Build the .glink lazy link call stubs. */ |
| 13200 | indx = 0; | |
| 9e390558 | 13201 | while (p < htab->glink->contents + htab->glink->size) |
| 9f951329 | 13202 | { |
| b9e5796b | 13203 | if (htab->opd_abi) |
| 9f951329 | 13204 | { |
| b9e5796b AM |
13205 | if (indx < 0x8000) |
| 13206 | { | |
| 13207 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13208 | p += 4; | |
| 13209 | } | |
| 13210 | else | |
| 13211 | { | |
| 13212 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13213 | p += 4; | |
| 13214 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13215 | p); | |
| 13216 | p += 4; | |
| 13217 | } | |
| 9f951329 | 13218 | } |
| 4ce794b7 | 13219 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13220 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13221 | indx++; |
| 9f951329 AM |
13222 | p += 4; |
| 13223 | } | |
| 5d1634d7 | 13224 | } |
| 5d1634d7 | 13225 | |
| 9e390558 AM |
13226 | /* Build .glink global entry stubs. */ |
| 13227 | if (htab->global_entry != NULL && htab->global_entry->size != 0) | |
| 13228 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); | |
| 13229 | ||
| 7341d5e2 | 13230 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13231 | { |
| 4ce794b7 | 13232 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13233 | htab->brlt->size); |
| 4ce794b7 | 13234 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13235 | return FALSE; |
| 721956f4 | 13236 | } |
| ee75fd95 | 13237 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13238 | { |
| 13239 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13240 | htab->relbrlt->size); |
| 63bc6f6c AM |
13241 | if (htab->relbrlt->contents == NULL) |
| 13242 | return FALSE; | |
| 13243 | } | |
| 5d1634d7 | 13244 | |
| 721956f4 AM |
13245 | /* Build the stubs as directed by the stub hash table. */ |
| 13246 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13247 | |
| a4b6fadd AM |
13248 | for (group = htab->group; group != NULL; group = group->next) |
| 13249 | if (group->needs_save_res) | |
| 13250 | { | |
| 13251 | stub_sec = group->stub_sec; | |
| 13252 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13253 | htab->sfpr->size); | |
| 13254 | if (htab->params->emit_stub_syms) | |
| 13255 | { | |
| 13256 | unsigned int i; | |
| 13257 | ||
| 13258 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13259 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13260 | return FALSE; | |
| 13261 | } | |
| 13262 | stub_sec->size += htab->sfpr->size; | |
| 13263 | } | |
| 13264 | ||
| aa8a7074 AM |
13265 | if (htab->relbrlt != NULL) |
| 13266 | htab->relbrlt->reloc_count = 0; | |
| 13267 | ||
| e7d1c40c | 13268 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13269 | for (group = htab->group; group != NULL; group = group->next) |
| 13270 | if ((stub_sec = group->stub_sec) != NULL) | |
| 691d2e9a AM |
13271 | { |
| 13272 | int align = abs (htab->params->plt_stub_align); | |
| 13273 | stub_sec->size = (stub_sec->size + (1 << align) - 1) & -(1 << align); | |
| 13274 | } | |
| 794e51c0 | 13275 | |
| d4aaa2a0 AM |
13276 | for (group = htab->group; group != NULL; group = group->next) |
| 13277 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13278 | { |
| 13279 | stub_sec_count += 1; | |
| c9301e31 AM |
13280 | if (stub_sec->rawsize != stub_sec->size |
| 13281 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13282 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13283 | break; |
| 13284 | } | |
| 5d1634d7 | 13285 | |
| 25516cc5 | 13286 | if (group != NULL) |
| 5d1634d7 | 13287 | { |
| b34976b6 | 13288 | htab->stub_error = TRUE; |
| cf97bcb0 | 13289 | _bfd_error_handler (_("stubs don't match calculated size")); |
| 5d1634d7 | 13290 | } |
| 721956f4 | 13291 | |
| d2a300cf AM |
13292 | if (htab->stub_error) |
| 13293 | return FALSE; | |
| 13294 | ||
| 13295 | if (stats != NULL) | |
| 13296 | { | |
| db84fff3 | 13297 | size_t len; |
| d2a300cf AM |
13298 | *stats = bfd_malloc (500); |
| 13299 | if (*stats == NULL) | |
| 13300 | return FALSE; | |
| 13301 | ||
| db84fff3 AM |
13302 | len = sprintf (*stats, |
| 13303 | ngettext ("linker stubs in %u group\n", | |
| 13304 | "linker stubs in %u groups\n", | |
| 13305 | stub_sec_count), | |
| 13306 | stub_sec_count); | |
| 13307 | sprintf (*stats + len, _(" branch %lu\n" | |
| 13308 | " toc adjust %lu\n" | |
| 13309 | " long branch %lu\n" | |
| 13310 | " long toc adj %lu\n" | |
| 13311 | " plt call %lu\n" | |
| 13312 | " plt call toc %lu\n" | |
| 13313 | " global entry %lu"), | |
| 4ce794b7 AM |
13314 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13315 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13316 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13317 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13318 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13319 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13320 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13321 | } |
| 13322 | return TRUE; | |
| 5bd4f169 AM |
13323 | } |
| 13324 | ||
| 60124e18 AM |
13325 | /* What to do when ld finds relocations against symbols defined in |
| 13326 | discarded sections. */ | |
| 13327 | ||
| 13328 | static unsigned int | |
| 13329 | ppc64_elf_action_discarded (asection *sec) | |
| 13330 | { | |
| 13331 | if (strcmp (".opd", sec->name) == 0) | |
| 13332 | return 0; | |
| 13333 | ||
| 13334 | if (strcmp (".toc", sec->name) == 0) | |
| 13335 | return 0; | |
| 13336 | ||
| bce50a28 JJ |
13337 | if (strcmp (".toc1", sec->name) == 0) |
| 13338 | return 0; | |
| 13339 | ||
| 60124e18 AM |
13340 | return _bfd_elf_default_action_discarded (sec); |
| 13341 | } | |
| 13342 | ||
| 5bd4f169 AM |
13343 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13344 | to handle the relocations for a section. | |
| 13345 | ||
| 13346 | The relocs are always passed as Rela structures; if the section | |
| 13347 | actually uses Rel structures, the r_addend field will always be | |
| 13348 | zero. | |
| 13349 | ||
| 13350 | This function is responsible for adjust the section contents as | |
| 13351 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13352 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13353 | necessary. |
| 13354 | ||
| 13355 | This function does not have to worry about setting the reloc | |
| 13356 | address or the reloc symbol index. | |
| 13357 | ||
| 13358 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13359 | ||
| 13360 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13361 | corresponding to the st_shndx field of each local symbol. | |
| 13362 | ||
| 13363 | The global hash table entry for the global symbols can be found | |
| 13364 | via elf_sym_hashes (input_bfd). | |
| 13365 | ||
| 1049f94e | 13366 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13367 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13368 | going to be the section symbol corresponding to the output | |
| 13369 | section, which means that the addend must be adjusted | |
| 13370 | accordingly. */ | |
| 13371 | ||
| b34976b6 | 13372 | static bfd_boolean |
| 4ce794b7 AM |
13373 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13374 | struct bfd_link_info *info, | |
| 13375 | bfd *input_bfd, | |
| 13376 | asection *input_section, | |
| 13377 | bfd_byte *contents, | |
| 13378 | Elf_Internal_Rela *relocs, | |
| 13379 | Elf_Internal_Sym *local_syms, | |
| 13380 | asection **local_sections) | |
| 5bd4f169 | 13381 | { |
| 65f38f15 | 13382 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13383 | Elf_Internal_Shdr *symtab_hdr; |
| 13384 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13385 | Elf_Internal_Rela *rel; |
| c316a17c | 13386 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13387 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13388 | Elf_Internal_Rela outrel; |
| 13389 | bfd_byte *loc; | |
| 411e1bfb | 13390 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13391 | bfd_vma TOCstart; |
| b34976b6 AM |
13392 | bfd_boolean ret = TRUE; |
| 13393 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13394 | /* Assume 'at' branch hints. */ |
| 13395 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13396 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13397 | |
| 65f38f15 | 13398 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13399 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13400 | ppc_howto_init (); |
| 13401 | ||
| 65f38f15 | 13402 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13403 | if (htab == NULL) |
| 13404 | return FALSE; | |
| ee75fd95 AM |
13405 | |
| 13406 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13407 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13408 | return TRUE; |
| 13409 | ||
| 0c8d6e5c | 13410 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13411 | |
| 411e1bfb | 13412 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13413 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13414 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13415 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13416 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13417 | |
| c316a17c | 13418 | rel = wrel = relocs; |
| 5bd4f169 | 13419 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13420 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13421 | { |
| 04c9666a | 13422 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13423 | bfd_vma addend; |
| 5bd4f169 AM |
13424 | bfd_reloc_status_type r; |
| 13425 | Elf_Internal_Sym *sym; | |
| 13426 | asection *sec; | |
| 039b3fef AM |
13427 | struct elf_link_hash_entry *h_elf; |
| 13428 | struct ppc_link_hash_entry *h; | |
| 13429 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13430 | const char *sym_name; |
| 0d4792f7 | 13431 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13432 | bfd_vma toc_addend; |
| f961d9dd AM |
13433 | unsigned char tls_mask, tls_gd, tls_type; |
| 13434 | unsigned char sym_type; | |
| 5bd4f169 | 13435 | bfd_vma relocation; |
| b34976b6 AM |
13436 | bfd_boolean unresolved_reloc; |
| 13437 | bfd_boolean warned; | |
| bc30df16 | 13438 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13439 | unsigned int insn; |
| e11840f9 | 13440 | unsigned int mask; |
| 721956f4 AM |
13441 | struct ppc_stub_hash_entry *stub_entry; |
| 13442 | bfd_vma max_br_offset; | |
| 13443 | bfd_vma from; | |
| c316a17c | 13444 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13445 | reloc_howto_type *howto; |
| 13446 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13447 | |
| c316a17c AM |
13448 | again: |
| 13449 | orig_rel = *rel; | |
| 13450 | ||
| 4ce794b7 | 13451 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13452 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13453 | |
| 13454 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13455 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13456 | proper TOC base to use. */ | |
| 13457 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13458 | && wrel != relocs |
| 13459 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13460 | && is_opd) |
| c316a17c | 13461 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13462 | |
| 4ce794b7 AM |
13463 | sym = NULL; |
| 13464 | sec = NULL; | |
| 039b3fef | 13465 | h_elf = NULL; |
| 4ce794b7 | 13466 | sym_name = NULL; |
| b34976b6 AM |
13467 | unresolved_reloc = FALSE; |
| 13468 | warned = FALSE; | |
| 65f38f15 | 13469 | |
| 0b13192e | 13470 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13471 | { |
| 13472 | /* It's a local symbol. */ | |
| 74f0fb50 | 13473 | struct _opd_sec_data *opd; |
| 4025353c | 13474 | |
| 5bd4f169 AM |
13475 | sym = local_syms + r_symndx; |
| 13476 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13477 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13478 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13479 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13480 | opd = get_opd_info (sec); |
| 13481 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13482 | { |
| 51aecdc5 AM |
13483 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13484 | + rel->r_addend)]; | |
| 4025353c AM |
13485 | if (adjust == -1) |
| 13486 | relocation = 0; | |
| 13487 | else | |
| 4cc603a5 AM |
13488 | { |
| 13489 | /* If this is a relocation against the opd section sym | |
| 13490 | and we have edited .opd, adjust the reloc addend so | |
| 13491 | that ld -r and ld --emit-relocs output is correct. | |
| 13492 | If it is a reloc against some other .opd symbol, | |
| 13493 | then the symbol value will be adjusted later. */ | |
| 13494 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13495 | rel->r_addend += adjust; | |
| 13496 | else | |
| 13497 | relocation += adjust; | |
| 13498 | } | |
| 1e2f5b6e | 13499 | } |
| 5bd4f169 AM |
13500 | } |
| 13501 | else | |
| 13502 | { | |
| 62d887d4 L |
13503 | bfd_boolean ignored; |
| 13504 | ||
| b2a8e766 AM |
13505 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13506 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13507 | h_elf, sec, relocation, |
| 62d887d4 | 13508 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13509 | sym_name = h_elf->root.root.string; |
| 13510 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13511 | if (sec != NULL |
| 13512 | && sec->owner == output_bfd | |
| 13513 | && strcmp (sec->name, ".opd") == 0) | |
| 13514 | { | |
| 13515 | /* This is a symbol defined in a linker script. All | |
| 13516 | such are defined in output sections, even those | |
| 13517 | defined by simple assignment from a symbol defined in | |
| 13518 | an input section. Transfer the symbol to an | |
| 13519 | appropriate input .opd section, so that a branch to | |
| 13520 | this symbol will be mapped to the location specified | |
| 13521 | by the opd entry. */ | |
| 13522 | struct bfd_link_order *lo; | |
| 13523 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13524 | if (lo->type == bfd_indirect_link_order) | |
| 13525 | { | |
| 13526 | asection *isec = lo->u.indirect.section; | |
| 13527 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13528 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13529 | + isec->size)) | |
| 13530 | { | |
| 13531 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13532 | h_elf->root.u.def.section = isec; | |
| 13533 | sec = isec; | |
| 13534 | break; | |
| 13535 | } | |
| 13536 | } | |
| 13537 | } | |
| 5bd4f169 | 13538 | } |
| 039b3fef | 13539 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13540 | |
| dbaa2011 | 13541 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13542 | { |
| 13543 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13544 | input_bfd, input_section, | |
| 13545 | contents + rel->r_offset); | |
| 13546 | wrel->r_offset = rel->r_offset; | |
| 13547 | wrel->r_info = 0; | |
| 13548 | wrel->r_addend = 0; | |
| 13549 | ||
| 13550 | /* For ld -r, remove relocations in debug sections against | |
| dcd2b8a0 | 13551 | symbols defined in discarded sections. Not done for |
| c316a17c AM |
13552 | non-debug to preserve relocs in .eh_frame which the |
| 13553 | eh_frame editing code expects to be present. */ | |
| 13554 | if (bfd_link_relocatable (info) | |
| 13555 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13556 | wrel--; | |
| 13557 | ||
| 13558 | continue; | |
| 13559 | } | |
| ab96bf03 | 13560 | |
| 0e1862bb | 13561 | if (bfd_link_relocatable (info)) |
| c316a17c | 13562 | goto copy_reloc; |
| ab96bf03 | 13563 | |
| f40da81b AM |
13564 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13565 | { | |
| 6f20ed8a | 13566 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13567 | sec = bfd_abs_section_ptr; |
| 13568 | unresolved_reloc = FALSE; | |
| 13569 | } | |
| 13570 | ||
| 951fd09b AM |
13571 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13572 | based on information we collected in tls_optimize. We edit | |
| 13573 | RELOCS so that --emit-relocs will output something sensible | |
| 13574 | for the final instruction stream. */ | |
| 13575 | tls_mask = 0; | |
| 13576 | tls_gd = 0; | |
| 0d4792f7 | 13577 | toc_symndx = 0; |
| 727fc41e AM |
13578 | if (h != NULL) |
| 13579 | tls_mask = h->tls_mask; | |
| 13580 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13581 | { |
| e054468f AM |
13582 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13583 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13584 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13585 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13586 | tls_mask = lgot_masks[r_symndx]; |
| 13587 | } | |
| 13588 | if (tls_mask == 0 | |
| 13589 | && (r_type == R_PPC64_TLS | |
| 13590 | || r_type == R_PPC64_TLSGD | |
| 13591 | || r_type == R_PPC64_TLSLD)) | |
| 13592 | { | |
| 13593 | /* Check for toc tls entries. */ | |
| f961d9dd | 13594 | unsigned char *toc_tls; |
| 0d4792f7 | 13595 | |
| 727fc41e AM |
13596 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13597 | &local_syms, rel, input_bfd)) | |
| 13598 | return FALSE; | |
| 0d4792f7 | 13599 | |
| 727fc41e AM |
13600 | if (toc_tls) |
| 13601 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13602 | } |
| 13603 | ||
| 13604 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13605 | relocs are used with non-tls syms. */ | |
| cf35638d | 13606 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13607 | && r_type != R_PPC64_NONE |
| 13608 | && (h == NULL | |
| 039b3fef AM |
13609 | || h->elf.root.type == bfd_link_hash_defined |
| 13610 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13611 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13612 | != (sym_type == STT_TLS | |
| 13613 | || (sym_type == STT_SECTION | |
| 13614 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13615 | { |
| 727fc41e AM |
13616 | if (tls_mask != 0 |
| 13617 | && (r_type == R_PPC64_TLS | |
| 13618 | || r_type == R_PPC64_TLSGD | |
| 13619 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13620 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13621 | ; | |
| 13622 | else | |
| 25f53a85 | 13623 | info->callbacks->einfo |
| 1d483afe | 13624 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13625 | /* xgettext:c-format */ |
| c1c8c1ef | 13626 | ? _("%H: %s used with TLS symbol `%pT'\n") |
| 695344c0 | 13627 | /* xgettext:c-format */ |
| c1c8c1ef | 13628 | : _("%H: %s used with non-TLS symbol `%pT'\n"), |
| 25f53a85 | 13629 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13630 | ppc64_elf_howto_table[r_type]->name, |
| 13631 | sym_name); | |
| 411e1bfb AM |
13632 | } |
| 13633 | ||
| 13634 | /* Ensure reloc mapping code below stays sane. */ | |
| 13635 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13636 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13637 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13638 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13639 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13640 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13641 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13642 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13643 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13644 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13645 | abort (); | |
| 0d4792f7 | 13646 | |
| 411e1bfb AM |
13647 | switch (r_type) |
| 13648 | { | |
| 13649 | default: | |
| 411e1bfb AM |
13650 | break; |
| 13651 | ||
| ba761f19 | 13652 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13653 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13654 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13655 | abort (); | |
| 13656 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13657 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13658 | r_type = R_PPC64_TOC16_LO; |
| 13659 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13660 | break; | |
| 13661 | ||
| 411e1bfb AM |
13662 | case R_PPC64_TOC16: |
| 13663 | case R_PPC64_TOC16_LO: | |
| 13664 | case R_PPC64_TOC16_DS: | |
| 13665 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13666 | { |
| 13667 | /* Check for toc tls entries. */ | |
| f961d9dd | 13668 | unsigned char *toc_tls; |
| 951fd09b | 13669 | int retval; |
| 411e1bfb | 13670 | |
| 3a71aa26 AM |
13671 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13672 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13673 | if (retval == 0) |
| 411e1bfb AM |
13674 | return FALSE; |
| 13675 | ||
| 13676 | if (toc_tls) | |
| 13677 | { | |
| 951fd09b | 13678 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13679 | if (r_type == R_PPC64_TOC16_DS |
| 13680 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13681 | { |
| 13682 | if (tls_mask != 0 | |
| 13683 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13684 | goto toctprel; | |
| 13685 | } | |
| 411e1bfb | 13686 | else |
| 951fd09b AM |
13687 | { |
| 13688 | /* If we found a GD reloc pair, then we might be | |
| 13689 | doing a GD->IE transition. */ | |
| 13690 | if (retval == 2) | |
| 13691 | { | |
| 13692 | tls_gd = TLS_TPRELGD; | |
| 13693 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13694 | goto tls_ldgd_opt; |
| 951fd09b AM |
13695 | } |
| 13696 | else if (retval == 3) | |
| 13697 | { | |
| 13698 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13699 | goto tls_ldgd_opt; |
| 951fd09b AM |
13700 | } |
| 13701 | } | |
| 411e1bfb AM |
13702 | } |
| 13703 | } | |
| 13704 | break; | |
| 13705 | ||
| 9d6ded02 AM |
13706 | case R_PPC64_GOT_TPREL16_HI: |
| 13707 | case R_PPC64_GOT_TPREL16_HA: | |
| 13708 | if (tls_mask != 0 | |
| 13709 | && (tls_mask & TLS_TPREL) == 0) | |
| 13710 | { | |
| 13711 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13712 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13713 | r_type = R_PPC64_NONE; |
| 13714 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13715 | } | |
| 13716 | break; | |
| 13717 | ||
| 411e1bfb AM |
13718 | case R_PPC64_GOT_TPREL16_DS: |
| 13719 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13720 | if (tls_mask != 0 |
| 13721 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13722 | { |
| 81407a69 | 13723 | toctprel: |
| 95f0d0d2 | 13724 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13725 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13726 | insn &= 31 << 21; |
| 13727 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13728 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13729 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13730 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13731 | if (toc_symndx != 0) |
| 13732 | { | |
| 13733 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13734 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13735 | /* We changed the symbol. Start over in order to |
| 13736 | get h, sym, sec etc. right. */ | |
| c316a17c | 13737 | goto again; |
| 0d4792f7 AM |
13738 | } |
| 13739 | else | |
| 13740 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13741 | } |
| 13742 | break; | |
| 13743 | ||
| 13744 | case R_PPC64_TLS: | |
| 951fd09b AM |
13745 | if (tls_mask != 0 |
| 13746 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13747 | { |
| 95f0d0d2 | 13748 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13749 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13750 | if (insn == 0) | |
| 411e1bfb | 13751 | abort (); |
| 95f0d0d2 | 13752 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13753 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13754 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13755 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13756 | r_type = R_PPC64_TPREL16_LO; |
| 13757 | if (toc_symndx != 0) | |
| 13758 | { | |
| 13759 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13760 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13761 | /* We changed the symbol. Start over in order to |
| 13762 | get h, sym, sec etc. right. */ | |
| c316a17c | 13763 | goto again; |
| 0d4792f7 AM |
13764 | } |
| 13765 | else | |
| 13766 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13767 | } |
| 13768 | break; | |
| 13769 | ||
| 411e1bfb AM |
13770 | case R_PPC64_GOT_TLSGD16_HI: |
| 13771 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13772 | tls_gd = TLS_TPRELGD; |
| 13773 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13774 | goto tls_gdld_hi; | |
| 13775 | break; | |
| 13776 | ||
| 411e1bfb AM |
13777 | case R_PPC64_GOT_TLSLD16_HI: |
| 13778 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13779 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13780 | { |
| 951fd09b AM |
13781 | tls_gdld_hi: |
| 13782 | if ((tls_mask & tls_gd) != 0) | |
| 13783 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13784 | + R_PPC64_GOT_TPREL16_DS); | |
| 13785 | else | |
| 411e1bfb | 13786 | { |
| 4fe5ca5b | 13787 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13788 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13789 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13790 | } |
| 951fd09b | 13791 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13792 | } |
| 13793 | break; | |
| 13794 | ||
| 951fd09b AM |
13795 | case R_PPC64_GOT_TLSGD16: |
| 13796 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13797 | tls_gd = TLS_TPRELGD; | |
| 13798 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13799 | goto tls_ldgd_opt; |
| 951fd09b | 13800 | break; |
| 411e1bfb | 13801 | |
| 951fd09b AM |
13802 | case R_PPC64_GOT_TLSLD16: |
| 13803 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13804 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13805 | { | |
| b9f04fe0 | 13806 | unsigned int insn1, insn2; |
| 102890f0 AM |
13807 | bfd_vma offset; |
| 13808 | ||
| 13809 | tls_ldgd_opt: | |
| 727fc41e AM |
13810 | offset = (bfd_vma) -1; |
| 13811 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13812 | __tls_get_addr calls, we must trust that the call | |
| 13813 | stays with its arg setup insns, ie. that the next | |
| 13814 | reloc is the __tls_get_addr call associated with | |
| 13815 | the current reloc. Edit both insns. */ | |
| 13816 | if (input_section->has_tls_get_addr_call | |
| 13817 | && rel + 1 < relend | |
| 13818 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13819 | htab->tls_get_addr, | |
| 13820 | htab->tls_get_addr_fd)) | |
| 13821 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13822 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13823 | need to keep the destination reg. It may be | |
| 13824 | something other than the usual r3, and moved to r3 | |
| 13825 | before the call by intervening code. */ | |
| 95f0d0d2 | 13826 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13827 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13828 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13829 | { |
| 102890f0 | 13830 | /* IE */ |
| b86ac8e3 | 13831 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13832 | insn1 |= 58 << 26; /* ld */ |
| 13833 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13834 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13835 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13836 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13837 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13838 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13839 | else |
| 102890f0 AM |
13840 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13841 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13842 | } | |
| 13843 | else | |
| 13844 | { | |
| 13845 | /* LE */ | |
| b86ac8e3 AM |
13846 | insn1 &= 0x1f << 21; |
| 13847 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13848 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13849 | if (tls_gd == 0) | |
| 951fd09b | 13850 | { |
| 102890f0 | 13851 | /* Was an LD reloc. */ |
| 1d483afe AM |
13852 | if (toc_symndx) |
| 13853 | sec = local_sections[toc_symndx]; | |
| 13854 | for (r_symndx = 0; | |
| 13855 | r_symndx < symtab_hdr->sh_info; | |
| 13856 | r_symndx++) | |
| 13857 | if (local_sections[r_symndx] == sec) | |
| 13858 | break; | |
| 13859 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13860 | r_symndx = STN_UNDEF; |
| 102890f0 | 13861 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13862 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13863 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13864 | + sec->output_offset | |
| 13865 | + sec->output_section->vma); | |
| 951fd09b | 13866 | } |
| 102890f0 | 13867 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13868 | { |
| 13869 | r_symndx = toc_symndx; | |
| 13870 | rel->r_addend = toc_addend; | |
| 13871 | } | |
| 102890f0 AM |
13872 | r_type = R_PPC64_TPREL16_HA; |
| 13873 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13874 | if (offset != (bfd_vma) -1) |
| 13875 | { | |
| 13876 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13877 | R_PPC64_TPREL16_LO); | |
| 13878 | rel[1].r_offset = offset + d_offset; | |
| 13879 | rel[1].r_addend = rel->r_addend; | |
| 13880 | } | |
| 102890f0 | 13881 | } |
| 95f0d0d2 | 13882 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13883 | contents + rel->r_offset - d_offset); |
| 727fc41e | 13884 | if (offset != (bfd_vma) -1) |
| b9f04fe0 | 13885 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13886 | if ((tls_mask & tls_gd) == 0 |
| 13887 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13888 | { | |
| 13889 | /* We changed the symbol. Start over in order | |
| 13890 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13891 | goto again; |
| 727fc41e AM |
13892 | } |
| 13893 | } | |
| 13894 | break; | |
| 13895 | ||
| 13896 | case R_PPC64_TLSGD: | |
| 13897 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13898 | { | |
| b9f04fe0 | 13899 | unsigned int insn2; |
| 727fc41e AM |
13900 | bfd_vma offset = rel->r_offset; |
| 13901 | ||
| 13902 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13903 | { | |
| 13904 | /* IE */ | |
| 13905 | r_type = R_PPC64_NONE; | |
| 13906 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13907 | } | |
| 13908 | else | |
| 13909 | { | |
| 13910 | /* LE */ | |
| 13911 | if (toc_symndx != 0) | |
| 13912 | { | |
| 13913 | r_symndx = toc_symndx; | |
| 13914 | rel->r_addend = toc_addend; | |
| 13915 | } | |
| 13916 | r_type = R_PPC64_TPREL16_LO; | |
| 13917 | rel->r_offset = offset + d_offset; | |
| 13918 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13919 | } | |
| 13920 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13921 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13922 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13923 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13924 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13925 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13926 | goto again; |
| 411e1bfb | 13927 | } |
| 411e1bfb AM |
13928 | break; |
| 13929 | ||
| 727fc41e AM |
13930 | case R_PPC64_TLSLD: |
| 13931 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13932 | { | |
| b9f04fe0 | 13933 | unsigned int insn2; |
| 727fc41e AM |
13934 | bfd_vma offset = rel->r_offset; |
| 13935 | ||
| 13936 | if (toc_symndx) | |
| 13937 | sec = local_sections[toc_symndx]; | |
| 13938 | for (r_symndx = 0; | |
| 13939 | r_symndx < symtab_hdr->sh_info; | |
| 13940 | r_symndx++) | |
| 13941 | if (local_sections[r_symndx] == sec) | |
| 13942 | break; | |
| 13943 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13944 | r_symndx = STN_UNDEF; |
| 727fc41e | 13945 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13946 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13947 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13948 | + sec->output_offset | |
| 13949 | + sec->output_section->vma); | |
| 13950 | ||
| 13951 | r_type = R_PPC64_TPREL16_LO; | |
| 13952 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13953 | rel->r_offset = offset + d_offset; | |
| 13954 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13955 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13956 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13957 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13958 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13959 | goto again; |
| 727fc41e AM |
13960 | } |
| 13961 | break; | |
| 13962 | ||
| 411e1bfb | 13963 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13964 | if (rel + 1 < relend |
| 13965 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13966 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13967 | { |
| 951fd09b AM |
13968 | if ((tls_mask & TLS_GD) == 0) |
| 13969 | { | |
| 13970 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13971 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13972 | r_type = R_PPC64_TPREL64; | |
| 13973 | else | |
| 13974 | { | |
| 4ce794b7 | 13975 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13976 | r_type = R_PPC64_NONE; |
| 13977 | } | |
| 13978 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13979 | } | |
| 13980 | } | |
| 13981 | else | |
| 13982 | { | |
| 13983 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13984 | { |
| 4ce794b7 | 13985 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13986 | r_type = R_PPC64_NONE; |
| 951fd09b | 13987 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13988 | } |
| 411e1bfb AM |
13989 | } |
| 13990 | break; | |
| 13991 | ||
| 13992 | case R_PPC64_TPREL64: | |
| 951fd09b | 13993 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13994 | { |
| 13995 | r_type = R_PPC64_NONE; | |
| 13996 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13997 | } | |
| 13998 | break; | |
| 52a82034 | 13999 | |
| 006589cf AM |
14000 | case R_PPC64_ENTRY: |
| 14001 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 14002 | if (!bfd_link_pic (info) | |
| 14003 | && !info->traditional_format | |
| 14004 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14005 | { | |
| 14006 | unsigned int insn1, insn2; | |
| 14007 | ||
| 14008 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14009 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14010 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14011 | && insn2 == ADD_R2_R2_R12) | |
| 14012 | { | |
| 95f0d0d2 | 14013 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14014 | LIS_R2 + PPC_HA (relocation), |
| 14015 | contents + rel->r_offset); | |
| 95f0d0d2 | 14016 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14017 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14018 | contents + rel->r_offset + 4); | |
| 14019 | } | |
| 14020 | } | |
| 14021 | else | |
| 14022 | { | |
| 14023 | relocation -= (rel->r_offset | |
| 14024 | + input_section->output_offset | |
| 14025 | + input_section->output_section->vma); | |
| 14026 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14027 | { | |
| 14028 | unsigned int insn1, insn2; | |
| 14029 | ||
| 14030 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14031 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14032 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14033 | && insn2 == ADD_R2_R2_R12) | |
| 14034 | { | |
| 95f0d0d2 | 14035 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14036 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14037 | contents + rel->r_offset); | |
| 95f0d0d2 | 14038 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14039 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14040 | contents + rel->r_offset + 4); | |
| 14041 | } | |
| 14042 | } | |
| 14043 | } | |
| 14044 | break; | |
| 14045 | ||
| 52a82034 AM |
14046 | case R_PPC64_REL16_HA: |
| 14047 | /* If we are generating a non-PIC executable, edit | |
| 14048 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14049 | . addi 2,2,.TOC.-0b@l | |
| 14050 | used by ELFv2 global entry points to set up r2, to | |
| 14051 | . lis 2,.TOC.@ha | |
| 14052 | . addi 2,2,.TOC.@l | |
| 14053 | if .TOC. is in range. */ | |
| 0e1862bb | 14054 | if (!bfd_link_pic (info) |
| 810d4e75 | 14055 | && !info->traditional_format |
| 006589cf | 14056 | && !htab->opd_abi |
| 4f038ee5 | 14057 | && rel->r_addend == d_offset |
| 52a82034 AM |
14058 | && h != NULL && &h->elf == htab->elf.hgot |
| 14059 | && rel + 1 < relend | |
| 14060 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14061 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14062 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14063 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14064 | { | |
| 14065 | unsigned int insn1, insn2; | |
| 14066 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14067 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14068 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14069 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14070 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14071 | { |
| 14072 | r_type = R_PPC64_ADDR16_HA; | |
| 14073 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14074 | rel->r_addend -= d_offset; | |
| 14075 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14076 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14077 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14078 | } |
| 14079 | } | |
| 14080 | break; | |
| 411e1bfb AM |
14081 | } |
| 14082 | ||
| 14083 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14084 | insn = 0; |
| b25116a9 AM |
14085 | max_br_offset = 1 << 25; |
| 14086 | addend = rel->r_addend; | |
| bc30df16 | 14087 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14088 | switch (r_type) |
| 5bd4f169 AM |
14089 | { |
| 14090 | default: | |
| 65f38f15 | 14091 | break; |
| 5bd4f169 | 14092 | |
| 3b421ab3 AM |
14093 | case R_PPC64_TOCSAVE: |
| 14094 | if (relocation + addend == (rel->r_offset | |
| 14095 | + input_section->output_offset | |
| 14096 | + input_section->output_section->vma) | |
| 14097 | && tocsave_find (htab, NO_INSERT, | |
| 14098 | &local_syms, rel, input_bfd)) | |
| 14099 | { | |
| 14100 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14101 | if (insn == NOP | |
| 14102 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14103 | bfd_put_32 (input_bfd, |
| 14104 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14105 | contents + rel->r_offset); |
| 14106 | } | |
| 14107 | break; | |
| 14108 | ||
| 65f38f15 AM |
14109 | /* Branch taken prediction relocations. */ |
| 14110 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14111 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14112 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14113 | /* Fall through. */ |
| 65f38f15 | 14114 | |
| 86c76c7b | 14115 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14116 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14117 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14118 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14119 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14120 | /* Fall through. */ |
| 86c76c7b | 14121 | |
| b25116a9 AM |
14122 | case R_PPC64_REL14: |
| 14123 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14124 | /* Fall through. */ |
| 5bd4f169 | 14125 | |
| 65f38f15 | 14126 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14127 | /* Calls to functions with a different TOC, such as calls to |
| 14128 | shared objects, need to alter the TOC pointer. This is | |
| 14129 | done using a linkage stub. A REL24 branching to these | |
| 14130 | linkage stubs needs to be followed by a nop, as the nop | |
| 14131 | will be replaced with an instruction to restore the TOC | |
| 14132 | base pointer. */ | |
| 8387904d | 14133 | fdh = h; |
| b31867b6 AM |
14134 | if (h != NULL |
| 14135 | && h->oh != NULL | |
| 14136 | && h->oh->is_func_descriptor) | |
| 14137 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14138 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14139 | htab); | |
| 6abec6bc | 14140 | if (stub_entry != NULL |
| ad8e1ba5 | 14141 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14142 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14143 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14144 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14145 | { |
| b25116a9 | 14146 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14147 | |
| 6e1816be AM |
14148 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14149 | && !htab->opd_abi | |
| 14150 | && htab->params->plt_localentry0 != 0 | |
| 14151 | && is_elfv2_localentry0 (&h->elf)) | |
| 14152 | { | |
| 14153 | /* The function doesn't use or change r2. */ | |
| 14154 | can_plt_call = TRUE; | |
| 14155 | } | |
| 14156 | ||
| f378ab09 | 14157 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14158 | branch and link followed by a nop. The nop is |
| 14159 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14160 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14161 | { |
| ba8ca3e7 AM |
14162 | unsigned long br; |
| 14163 | ||
| 14164 | br = bfd_get_32 (input_bfd, | |
| 14165 | contents + rel->r_offset); | |
| 14166 | if ((br & 1) != 0) | |
| 41bd81ab | 14167 | { |
| ba8ca3e7 AM |
14168 | unsigned long nop; |
| 14169 | ||
| 14170 | nop = bfd_get_32 (input_bfd, | |
| 14171 | contents + rel->r_offset + 4); | |
| 14172 | if (nop == NOP | |
| 14173 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14174 | { |
| ba8ca3e7 AM |
14175 | if (h != NULL |
| 14176 | && (h == htab->tls_get_addr_fd | |
| 14177 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14178 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14179 | { |
| 14180 | /* Special stub used, leave nop alone. */ | |
| 14181 | } | |
| 14182 | else | |
| a078d95a AM |
14183 | bfd_put_32 (input_bfd, |
| 14184 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14185 | contents + rel->r_offset + 4); |
| 14186 | can_plt_call = TRUE; | |
| a7f2871e | 14187 | } |
| 41bd81ab | 14188 | } |
| 5bd4f169 | 14189 | } |
| 721956f4 | 14190 | |
| ba8ca3e7 | 14191 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14192 | { |
| ba8ca3e7 AM |
14193 | const char *name = h->elf.root.root.string; |
| 14194 | ||
| 14195 | if (*name == '.') | |
| 14196 | ++name; | |
| 14197 | ||
| 14198 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14199 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14200 | { |
| ba8ca3e7 AM |
14201 | /* Allow crt1 branch to go via a toc adjusting |
| 14202 | stub. Other calls that never return could do | |
| 14203 | the same, if we could detect such. */ | |
| b25116a9 | 14204 | can_plt_call = TRUE; |
| 6ab189d5 | 14205 | } |
| ba8ca3e7 AM |
14206 | } |
| 14207 | ||
| 14208 | if (!can_plt_call) | |
| 14209 | { | |
| 14210 | /* g++ as of 20130507 emits self-calls without a | |
| 14211 | following nop. This is arguably wrong since we | |
| 14212 | have conflicting information. On the one hand a | |
| 14213 | global symbol and on the other a local call | |
| 14214 | sequence, but don't error for this special case. | |
| 14215 | It isn't possible to cheaply verify we have | |
| 14216 | exactly such a call. Allow all calls to the same | |
| 14217 | section. */ | |
| 14218 | asection *code_sec = sec; | |
| 14219 | ||
| 14220 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14221 | { |
| ba8ca3e7 AM |
14222 | bfd_vma off = (relocation + addend |
| 14223 | - sec->output_section->vma | |
| 14224 | - sec->output_offset); | |
| bc30df16 | 14225 | |
| ba8ca3e7 | 14226 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14227 | } |
| ba8ca3e7 AM |
14228 | if (code_sec == input_section) |
| 14229 | can_plt_call = TRUE; | |
| 14230 | } | |
| 14231 | ||
| 14232 | if (!can_plt_call) | |
| 14233 | { | |
| 4805fc55 AM |
14234 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14235 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14236 | info->callbacks->einfo | |
| 695344c0 | 14237 | /* xgettext:c-format */ |
| c1c8c1ef | 14238 | (_("%H: call to `%pT' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14239 | "recompile with -fPIC\n"), |
| 14240 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14241 | else | |
| 14242 | info->callbacks->einfo | |
| 695344c0 | 14243 | /* xgettext:c-format */ |
| c1c8c1ef | 14244 | (_("%H: call to `%pT' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14245 | "(-mcmodel=small toc adjust stub)\n"), |
| 14246 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14247 | |
| 14248 | bfd_set_error (bfd_error_bad_value); | |
| 14249 | ret = FALSE; | |
| 721956f4 AM |
14250 | } |
| 14251 | ||
| b25116a9 | 14252 | if (can_plt_call |
| 794e51c0 AM |
14253 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14254 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14255 | unresolved_reloc = FALSE; |
| 14256 | } | |
| 14257 | ||
| 6abec6bc AM |
14258 | if ((stub_entry == NULL |
| 14259 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14260 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14261 | && get_opd_info (sec) != NULL) |
| 14262 | { | |
| 14263 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14264 | bfd_vma off = (relocation + addend |
| 14265 | - sec->output_section->vma | |
| 14266 | - sec->output_offset); | |
| aef36ac1 | 14267 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14268 | if (dest != (bfd_vma) -1) |
| 14269 | { | |
| 14270 | relocation = dest; | |
| 14271 | addend = 0; | |
| bc30df16 | 14272 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14273 | } |
| 14274 | } | |
| 14275 | ||
| b25116a9 AM |
14276 | /* If the branch is out of reach we ought to have a long |
| 14277 | branch stub. */ | |
| 14278 | from = (rel->r_offset | |
| 14279 | + input_section->output_offset | |
| 14280 | + input_section->output_section->vma); | |
| 14281 | ||
| 6911b7dc AM |
14282 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14283 | ? fdh->elf.other | |
| 14284 | : sym->st_other); | |
| 14285 | ||
| 6abec6bc AM |
14286 | if (stub_entry != NULL |
| 14287 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14288 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14289 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14290 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14291 | || (relocation + addend - from + max_br_offset | |
| 14292 | < 2 * max_br_offset))) | |
| 14293 | /* Don't use the stub if this branch is in range. */ | |
| 14294 | stub_entry = NULL; | |
| b25116a9 AM |
14295 | |
| 14296 | if (stub_entry != NULL) | |
| 14297 | { | |
| 14298 | /* Munge up the value and addend so that we call the stub | |
| 14299 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14300 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14301 | ||
| 14302 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14303 | relocation += (stub_sec->output_offset | |
| 14304 | + stub_sec->output_section->vma | |
| 14305 | + stub_sec->size - htab->sfpr->size | |
| 14306 | - htab->sfpr->output_offset | |
| 14307 | - htab->sfpr->output_section->vma); | |
| 14308 | else | |
| 14309 | relocation = (stub_entry->stub_offset | |
| 14310 | + stub_sec->output_offset | |
| 14311 | + stub_sec->output_section->vma); | |
| b25116a9 | 14312 | addend = 0; |
| bc30df16 | 14313 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14314 | |
| 954b63d4 | 14315 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14316 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14317 | && (ALWAYS_EMIT_R2SAVE | |
| 14318 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14319 | && rel + 1 < relend |
| 14320 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14321 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14322 | relocation += 4; | |
| b25116a9 AM |
14323 | } |
| 14324 | ||
| 14325 | if (insn != 0) | |
| 14326 | { | |
| 794e51c0 | 14327 | if (is_isa_v2) |
| 721956f4 | 14328 | { |
| b25116a9 AM |
14329 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14330 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14331 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14332 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14333 | insn |= 0x02 << 21; | |
| 14334 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14335 | insn |= 0x08 << 21; | |
| 14336 | else | |
| 14337 | break; | |
| 14338 | } | |
| 14339 | else | |
| 14340 | { | |
| 14341 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14342 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14343 | insn ^= 0x01 << 21; |
| 721956f4 | 14344 | } |
| b25116a9 | 14345 | |
| 95f0d0d2 | 14346 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14347 | } |
| e86ce104 | 14348 | |
| 06da1e8e AM |
14349 | /* NOP out calls to undefined weak functions. |
| 14350 | We can thus call a weak function without first | |
| 14351 | checking whether the function is defined. */ | |
| b25116a9 | 14352 | else if (h != NULL |
| 039b3fef | 14353 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14354 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14355 | && r_type == R_PPC64_REL24 |
| 14356 | && relocation == 0 | |
| 4cc603a5 | 14357 | && addend == 0) |
| e86ce104 | 14358 | { |
| 95f0d0d2 | 14359 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14360 | goto copy_reloc; |
| e86ce104 | 14361 | } |
| 65f38f15 AM |
14362 | break; |
| 14363 | } | |
| 5bd4f169 | 14364 | |
| 65f38f15 | 14365 | /* Set `addend'. */ |
| 411e1bfb | 14366 | tls_type = 0; |
| 65f38f15 AM |
14367 | switch (r_type) |
| 14368 | { | |
| 14369 | default: | |
| cf97bcb0 AM |
14370 | /* xgettext:c-format */ |
| 14371 | _bfd_error_handler (_("%pB: %s unsupported"), | |
| 14372 | input_bfd, ppc64_elf_howto_table[r_type]->name); | |
| 5bd4f169 | 14373 | |
| 65f38f15 | 14374 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14375 | ret = FALSE; |
| c316a17c | 14376 | goto copy_reloc; |
| 5bd4f169 | 14377 | |
| 65f38f15 | 14378 | case R_PPC64_NONE: |
| 411e1bfb | 14379 | case R_PPC64_TLS: |
| 727fc41e AM |
14380 | case R_PPC64_TLSGD: |
| 14381 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14382 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14383 | case R_PPC64_GNU_VTINHERIT: |
| 14384 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14385 | case R_PPC64_ENTRY: |
| c316a17c | 14386 | goto copy_reloc; |
| 5bd4f169 AM |
14387 | |
| 14388 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14389 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14390 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14391 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14392 | case R_PPC64_GOT_TLSGD16: |
| 14393 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14394 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14395 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14396 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14397 | goto dogot; |
| 14398 | ||
| 14399 | case R_PPC64_GOT_TLSLD16: | |
| 14400 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14401 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14402 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14403 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14404 | goto dogot; |
| 14405 | ||
| 14406 | case R_PPC64_GOT_TPREL16_DS: | |
| 14407 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14408 | case R_PPC64_GOT_TPREL16_HI: | |
| 14409 | case R_PPC64_GOT_TPREL16_HA: | |
| 14410 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14411 | goto dogot; | |
| 14412 | ||
| 14413 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14414 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14415 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14416 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14417 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14418 | goto dogot; | |
| 14419 | ||
| 65f38f15 AM |
14420 | case R_PPC64_GOT16: |
| 14421 | case R_PPC64_GOT16_LO: | |
| 14422 | case R_PPC64_GOT16_HI: | |
| 14423 | case R_PPC64_GOT16_HA: | |
| 14424 | case R_PPC64_GOT16_DS: | |
| 14425 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14426 | dogot: |
| 5bd4f169 AM |
14427 | { |
| 14428 | /* Relocation is to the entry for this symbol in the global | |
| 14429 | offset table. */ | |
| e717da7e | 14430 | asection *got; |
| d881513a | 14431 | bfd_vma *offp; |
| 5bd4f169 | 14432 | bfd_vma off; |
| d881513a | 14433 | unsigned long indx = 0; |
| 927be08e | 14434 | struct got_entry *ent; |
| 65f38f15 | 14435 | |
| d881513a AM |
14436 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14437 | && (h == NULL | |
| f5385ebf | 14438 | || !h->elf.def_dynamic)) |
| 927be08e | 14439 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14440 | else |
| 5bd4f169 | 14441 | { |
| d881513a AM |
14442 | if (h != NULL) |
| 14443 | { | |
| f0158f44 AM |
14444 | if (!htab->elf.dynamic_sections_created |
| 14445 | || h->elf.dynindx == -1 | |
| 14446 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 14447 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
14448 | /* This is actually a static link, or it is a |
| 14449 | -Bsymbolic link and the symbol is defined | |
| 14450 | locally, or the symbol was forced to be local | |
| 14451 | because of a version file. */ | |
| 14452 | ; | |
| 14453 | else | |
| 14454 | { | |
| 039b3fef | 14455 | indx = h->elf.dynindx; |
| d881513a AM |
14456 | unresolved_reloc = FALSE; |
| 14457 | } | |
| 039b3fef | 14458 | ent = h->elf.got.glist; |
| d881513a | 14459 | } |
| 411e1bfb | 14460 | else |
| 5bd4f169 | 14461 | { |
| d881513a AM |
14462 | if (local_got_ents == NULL) |
| 14463 | abort (); | |
| 14464 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14465 | } |
| d881513a AM |
14466 | |
| 14467 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14468 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14469 | && ent->owner == input_bfd |
| d881513a AM |
14470 | && ent->tls_type == tls_type) |
| 14471 | break; | |
| 5bd4f169 | 14472 | } |
| 411e1bfb | 14473 | |
| 927be08e AM |
14474 | if (ent == NULL) |
| 14475 | abort (); | |
| 14476 | if (ent->is_indirect) | |
| 14477 | ent = ent->got.ent; | |
| 14478 | offp = &ent->got.offset; | |
| 14479 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14480 | if (got == NULL) |
| 14481 | abort (); | |
| 14482 | ||
| 411e1bfb AM |
14483 | /* The offset must always be a multiple of 8. We use the |
| 14484 | least significant bit to record whether we have already | |
| 14485 | processed this entry. */ | |
| d881513a | 14486 | off = *offp; |
| 411e1bfb AM |
14487 | if ((off & 1) != 0) |
| 14488 | off &= ~1; | |
| 5bd4f169 AM |
14489 | else |
| 14490 | { | |
| 411e1bfb AM |
14491 | /* Generate relocs for the dynamic linker, except in |
| 14492 | the case of TLSLD where we'll use one entry per | |
| 14493 | module. */ | |
| 25f23106 AM |
14494 | asection *relgot; |
| 14495 | bfd_boolean ifunc; | |
| e717da7e | 14496 | |
| d881513a | 14497 | *offp = off | 1; |
| 25f23106 AM |
14498 | relgot = NULL; |
| 14499 | ifunc = (h != NULL | |
| 14500 | ? h->elf.type == STT_GNU_IFUNC | |
| 14501 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14502 | if (ifunc) |
| 82e66161 AM |
14503 | { |
| 14504 | relgot = htab->elf.irelplt; | |
| 14505 | if (indx == 0) | |
| 14506 | htab->local_ifunc_resolver = 1; | |
| 14507 | else if (is_static_defined (&h->elf)) | |
| 14508 | htab->maybe_local_ifunc_resolver = 1; | |
| 14509 | } | |
| f0158f44 AM |
14510 | else if (indx != 0 |
| 14511 | || (bfd_link_pic (info) | |
| 14512 | && (h == NULL | |
| 21d68fcd | 14513 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 | 14514 | || (tls_type == (TLS_TLS | TLS_LD) |
| f15d0b54 AM |
14515 | && !h->elf.def_dynamic)) |
| 14516 | && !(tls_type == (TLS_TLS | TLS_TPREL) | |
| 14517 | && bfd_link_executable (info) | |
| 14518 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf)))) | |
| 19e08130 | 14519 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14520 | if (relgot != NULL) |
| 5bd4f169 | 14521 | { |
| e717da7e AM |
14522 | outrel.r_offset = (got->output_section->vma |
| 14523 | + got->output_offset | |
| 411e1bfb | 14524 | + off); |
| 4cc603a5 | 14525 | outrel.r_addend = addend; |
| d881513a | 14526 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14527 | { |
| 411e1bfb | 14528 | outrel.r_addend = 0; |
| e515b051 | 14529 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14530 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14531 | { | |
| e717da7e AM |
14532 | loc = relgot->contents; |
| 14533 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14534 | * sizeof (Elf64_External_Rela)); |
| 14535 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14536 | &outrel, loc); | |
| e515b051 | 14537 | outrel.r_offset += 8; |
| 4cc603a5 | 14538 | outrel.r_addend = addend; |
| d881513a AM |
14539 | outrel.r_info |
| 14540 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14541 | } |
| 411e1bfb | 14542 | } |
| 951fd09b | 14543 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14544 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14545 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14546 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14547 | else if (indx != 0) |
| 14548 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14549 | else | |
| 81407a69 | 14550 | { |
| 25f23106 AM |
14551 | if (ifunc) |
| 14552 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14553 | else | |
| 14554 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14555 | |
| 14556 | /* Write the .got section contents for the sake | |
| 14557 | of prelink. */ | |
| e717da7e | 14558 | loc = got->contents + off; |
| 23fbd6fa JJ |
14559 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14560 | loc); | |
| 81407a69 | 14561 | } |
| 81407a69 AM |
14562 | |
| 14563 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14564 | { |
| 14565 | outrel.r_addend += relocation; | |
| 14566 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14567 | { |
| 14568 | if (htab->elf.tls_sec == NULL) | |
| 14569 | outrel.r_addend = 0; | |
| 14570 | else | |
| 14571 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14572 | } | |
| e515b051 | 14573 | } |
| e717da7e AM |
14574 | loc = relgot->contents; |
| 14575 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14576 | * sizeof (Elf64_External_Rela)); |
| 14577 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14578 | } | |
| 14579 | ||
| ad8e1ba5 | 14580 | /* Init the .got section contents here if we're not |
| 81407a69 | 14581 | emitting a reloc. */ |
| d881513a | 14582 | else |
| 411e1bfb | 14583 | { |
| 4cc603a5 | 14584 | relocation += addend; |
| f0158f44 | 14585 | if (tls_type != 0) |
| 411e1bfb | 14586 | { |
| 989f9879 AM |
14587 | if (htab->elf.tls_sec == NULL) |
| 14588 | relocation = 0; | |
| 14589 | else | |
| 14590 | { | |
| f0158f44 AM |
14591 | if (tls_type & TLS_LD) |
| 14592 | relocation = 0; | |
| 14593 | else | |
| 14594 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 14595 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
14596 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14597 | } | |
| 5bd4f169 | 14598 | |
| f0158f44 | 14599 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14600 | { |
| 14601 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14602 | got->contents + off + 8); |
| 676ee2b5 | 14603 | relocation = 1; |
| 7b609f53 | 14604 | } |
| 411e1bfb AM |
14605 | } |
| 14606 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14607 | got->contents + off); |
| 5bd4f169 AM |
14608 | } |
| 14609 | } | |
| 14610 | ||
| 65f38f15 AM |
14611 | if (off >= (bfd_vma) -2) |
| 14612 | abort (); | |
| 14613 | ||
| bf102f86 | 14614 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14615 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14616 | } |
| 65f38f15 AM |
14617 | break; |
| 14618 | ||
| 14619 | case R_PPC64_PLT16_HA: | |
| 14620 | case R_PPC64_PLT16_HI: | |
| 14621 | case R_PPC64_PLT16_LO: | |
| 14622 | case R_PPC64_PLT32: | |
| 14623 | case R_PPC64_PLT64: | |
| 14624 | /* Relocation is to the entry for this symbol in the | |
| 14625 | procedure linkage table. */ | |
| cbf95972 AM |
14626 | { |
| 14627 | struct plt_entry **plt_list = NULL; | |
| 14628 | if (h != NULL) | |
| 14629 | plt_list = &h->elf.plt.plist; | |
| 14630 | else if (local_got_ents != NULL) | |
| 14631 | { | |
| 14632 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14633 | (local_got_ents + symtab_hdr->sh_info); | |
| 14634 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14635 | (local_plt + symtab_hdr->sh_info); | |
| 14636 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14637 | plt_list = local_plt + r_symndx; | |
| 14638 | } | |
| 14639 | if (plt_list) | |
| 14640 | { | |
| 14641 | struct plt_entry *ent; | |
| 65f38f15 | 14642 | |
| cbf95972 AM |
14643 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14644 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14645 | && ent->addend == orig_rel.r_addend) | |
| 14646 | { | |
| 14647 | asection *plt; | |
| 14648 | ||
| 14649 | plt = htab->elf.splt; | |
| 14650 | if (!htab->elf.dynamic_sections_created | |
| 14651 | || h == NULL | |
| 14652 | || h->elf.dynindx == -1) | |
| 14653 | plt = htab->elf.iplt; | |
| 14654 | relocation = (plt->output_section->vma | |
| 14655 | + plt->output_offset | |
| 14656 | + ent->plt.offset); | |
| 14657 | addend = 0; | |
| 14658 | unresolved_reloc = FALSE; | |
| 14659 | break; | |
| 14660 | } | |
| 14661 | } | |
| 14662 | } | |
| 65f38f15 | 14663 | break; |
| 5bd4f169 | 14664 | |
| 0b13192e AM |
14665 | case R_PPC64_TOC: |
| 14666 | /* Relocation value is TOC base. */ | |
| 14667 | relocation = TOCstart; | |
| cf35638d | 14668 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14669 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14670 | else if (unresolved_reloc) |
| 14671 | ; | |
| 6f20ed8a AM |
14672 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14673 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14674 | else |
| 14675 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14676 | goto dodyn; |
| 0b13192e | 14677 | |
| 5bd4f169 AM |
14678 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14679 | which is the address of the start of the TOC plus 0x8000. | |
| 14680 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14681 | in this order. */ | |
| 65f38f15 AM |
14682 | case R_PPC64_TOC16: |
| 14683 | case R_PPC64_TOC16_LO: | |
| 14684 | case R_PPC64_TOC16_HI: | |
| 14685 | case R_PPC64_TOC16_DS: | |
| 14686 | case R_PPC64_TOC16_LO_DS: | |
| 14687 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14688 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14689 | break; |
| 14690 | ||
| 14691 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14692 | case R_PPC64_SECTOFF: |
| 14693 | case R_PPC64_SECTOFF_LO: | |
| 14694 | case R_PPC64_SECTOFF_HI: | |
| 14695 | case R_PPC64_SECTOFF_DS: | |
| 14696 | case R_PPC64_SECTOFF_LO_DS: | |
| 14697 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14698 | if (sec != NULL) |
| 65f38f15 | 14699 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14700 | break; |
| 14701 | ||
| 25f23106 AM |
14702 | case R_PPC64_REL16: |
| 14703 | case R_PPC64_REL16_LO: | |
| 14704 | case R_PPC64_REL16_HI: | |
| 14705 | case R_PPC64_REL16_HA: | |
| a680de9a | 14706 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14707 | break; |
| 14708 | ||
| 721956f4 AM |
14709 | case R_PPC64_REL14: |
| 14710 | case R_PPC64_REL14_BRNTAKEN: | |
| 14711 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14712 | case R_PPC64_REL24: |
| 14713 | break; | |
| 14714 | ||
| 411e1bfb AM |
14715 | case R_PPC64_TPREL16: |
| 14716 | case R_PPC64_TPREL16_LO: | |
| 14717 | case R_PPC64_TPREL16_HI: | |
| 14718 | case R_PPC64_TPREL16_HA: | |
| 14719 | case R_PPC64_TPREL16_DS: | |
| 14720 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14721 | case R_PPC64_TPREL16_HIGH: |
| 14722 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14723 | case R_PPC64_TPREL16_HIGHER: |
| 14724 | case R_PPC64_TPREL16_HIGHERA: | |
| 14725 | case R_PPC64_TPREL16_HIGHEST: | |
| 14726 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14727 | if (h != NULL |
| 14728 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14729 | && h->elf.dynindx == -1) | |
| 14730 | { | |
| 14731 | /* Make this relocation against an undefined weak symbol | |
| 14732 | resolve to zero. This is really just a tweak, since | |
| 14733 | code using weak externs ought to check that they are | |
| 14734 | defined before using them. */ | |
| 14735 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14736 | ||
| 95f0d0d2 | 14737 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14738 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14739 | if (insn != 0) | |
| 95f0d0d2 | 14740 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14741 | break; |
| 14742 | } | |
| 989f9879 AM |
14743 | if (htab->elf.tls_sec != NULL) |
| 14744 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
14745 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14746 | libs or with non-local symbols as that will result in | |
| 14747 | DT_TEXTREL being set, but support them anyway. */ | |
| 14748 | goto dodyn; | |
| 411e1bfb AM |
14749 | |
| 14750 | case R_PPC64_DTPREL16: | |
| 14751 | case R_PPC64_DTPREL16_LO: | |
| 14752 | case R_PPC64_DTPREL16_HI: | |
| 14753 | case R_PPC64_DTPREL16_HA: | |
| 14754 | case R_PPC64_DTPREL16_DS: | |
| 14755 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14756 | case R_PPC64_DTPREL16_HIGH: |
| 14757 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14758 | case R_PPC64_DTPREL16_HIGHER: |
| 14759 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14760 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14761 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14762 | if (htab->elf.tls_sec != NULL) |
| 14763 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14764 | break; |
| 14765 | ||
| 45965137 AM |
14766 | case R_PPC64_ADDR64_LOCAL: |
| 14767 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14768 | ? h->elf.other | |
| 14769 | : sym->st_other); | |
| 14770 | break; | |
| 14771 | ||
| e515b051 AM |
14772 | case R_PPC64_DTPMOD64: |
| 14773 | relocation = 1; | |
| 14774 | addend = 0; | |
| 14775 | goto dodyn; | |
| 14776 | ||
| 411e1bfb | 14777 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14778 | if (htab->elf.tls_sec != NULL) |
| 14779 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14780 | goto dodyn; |
| 14781 | ||
| 14782 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14783 | if (htab->elf.tls_sec != NULL) |
| 14784 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14785 | /* Fall through. */ |
| 411e1bfb | 14786 | |
| 65f38f15 AM |
14787 | /* Relocations that may need to be propagated if this is a |
| 14788 | dynamic object. */ | |
| 04c9666a | 14789 | case R_PPC64_REL30: |
| 65f38f15 AM |
14790 | case R_PPC64_REL32: |
| 14791 | case R_PPC64_REL64: | |
| 14792 | case R_PPC64_ADDR14: | |
| 14793 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14794 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14795 | case R_PPC64_ADDR16: | |
| 14796 | case R_PPC64_ADDR16_DS: | |
| 14797 | case R_PPC64_ADDR16_HA: | |
| 14798 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14799 | case R_PPC64_ADDR16_HIGH: |
| 14800 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14801 | case R_PPC64_ADDR16_HIGHER: |
| 14802 | case R_PPC64_ADDR16_HIGHERA: | |
| 14803 | case R_PPC64_ADDR16_HIGHEST: | |
| 14804 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14805 | case R_PPC64_ADDR16_LO: | |
| 14806 | case R_PPC64_ADDR16_LO_DS: | |
| 14807 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14808 | case R_PPC64_ADDR32: |
| 14809 | case R_PPC64_ADDR64: | |
| 14810 | case R_PPC64_UADDR16: | |
| 14811 | case R_PPC64_UADDR32: | |
| 14812 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14813 | dodyn: |
| 5d1634d7 | 14814 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14815 | break; |
| 14816 | ||
| 41bd81ab AM |
14817 | if (NO_OPD_RELOCS && is_opd) |
| 14818 | break; | |
| 14819 | ||
| 8a9e8e72 | 14820 | if (bfd_link_pic (info) |
| b1b07054 AM |
14821 | ? ((h == NULL |
| 14822 | || h->dyn_relocs != NULL) | |
| 14823 | && ((h != NULL && pc_dynrelocs (h)) | |
| 14824 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
14825 | : (h != NULL |
| 14826 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14827 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14828 | { |
| b34976b6 | 14829 | bfd_boolean skip, relocate; |
| 65f38f15 | 14830 | asection *sreloc; |
| 1cf1f670 | 14831 | bfd_vma out_off; |
| 82e66161 | 14832 | long indx = 0; |
| 65f38f15 AM |
14833 | |
| 14834 | /* When generating a dynamic object, these relocations | |
| 14835 | are copied into the output file to be resolved at run | |
| 14836 | time. */ | |
| 14837 | ||
| b34976b6 AM |
14838 | skip = FALSE; |
| 14839 | relocate = FALSE; | |
| 65f38f15 | 14840 | |
| 1cf1f670 AM |
14841 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14842 | input_section, rel->r_offset); | |
| 14843 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14844 | skip = TRUE; |
| 1cf1f670 | 14845 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14846 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14847 | out_off += (input_section->output_section->vma |
| 14848 | + input_section->output_offset); | |
| 14849 | outrel.r_offset = out_off; | |
| 411e1bfb | 14850 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14851 | |
| 1cf1f670 AM |
14852 | /* Optimize unaligned reloc use. */ |
| 14853 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14854 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14855 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14856 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14857 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14858 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14859 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14860 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14861 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14862 | ||
| 65f38f15 | 14863 | if (skip) |
| 0bb2d96a | 14864 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14865 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14866 | && !is_opd |
| 14867 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 14868 | { |
| 82e66161 AM |
14869 | indx = h->elf.dynindx; |
| 14870 | BFD_ASSERT (indx != -1); | |
| 14871 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 14872 | } |
| 65f38f15 AM |
14873 | else |
| 14874 | { | |
| 41bd81ab AM |
14875 | /* This symbol is local, or marked to become local, |
| 14876 | or this is an opd section reloc which must point | |
| 14877 | at a local function. */ | |
| 65f38f15 | 14878 | outrel.r_addend += relocation; |
| e86ce104 | 14879 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14880 | { |
| 3fad3c7c | 14881 | if (is_opd && h != NULL) |
| afbe61cf AM |
14882 | { |
| 14883 | /* Lie about opd entries. This case occurs | |
| 14884 | when building shared libraries and we | |
| 14885 | reference a function in another shared | |
| 3fad3c7c AM |
14886 | lib. The same thing happens for a weak |
| 14887 | definition in an application that's | |
| 14888 | overridden by a strong definition in a | |
| 14889 | shared lib. (I believe this is a generic | |
| 14890 | bug in binutils handling of weak syms.) | |
| 14891 | In these cases we won't use the opd | |
| 1e2f5b6e | 14892 | entry in this lib. */ |
| b34976b6 | 14893 | unresolved_reloc = FALSE; |
| afbe61cf | 14894 | } |
| 25f23106 AM |
14895 | if (!is_opd |
| 14896 | && r_type == R_PPC64_ADDR64 | |
| 14897 | && (h != NULL | |
| 14898 | ? h->elf.type == STT_GNU_IFUNC | |
| 14899 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14900 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14901 | else | |
| 14902 | { | |
| 14903 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14904 | |
| 25f23106 AM |
14905 | /* We need to relocate .opd contents for ld.so. |
| 14906 | Prelink also wants simple and consistent rules | |
| 14907 | for relocs. This make all RELATIVE relocs have | |
| 14908 | *r_offset equal to r_addend. */ | |
| 14909 | relocate = TRUE; | |
| 14910 | } | |
| 65f38f15 AM |
14911 | } |
| 14912 | else | |
| 14913 | { | |
| 25f23106 AM |
14914 | if (h != NULL |
| 14915 | ? h->elf.type == STT_GNU_IFUNC | |
| 14916 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14917 | { | |
| 25f53a85 | 14918 | info->callbacks->einfo |
| 695344c0 | 14919 | /* xgettext:c-format */ |
| 174d0a74 | 14920 | (_("%H: %s for indirect " |
| c1c8c1ef | 14921 | "function `%pT' unsupported\n"), |
| 25f53a85 | 14922 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14923 | ppc64_elf_howto_table[r_type]->name, |
| 14924 | sym_name); | |
| 14925 | ret = FALSE; | |
| 14926 | } | |
| cf35638d | 14927 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14928 | ; |
| 14929 | else if (sec == NULL || sec->owner == NULL) | |
| 14930 | { | |
| 14931 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14932 | return FALSE; |
| 65f38f15 AM |
14933 | } |
| 14934 | else | |
| 14935 | { | |
| 14936 | asection *osec; | |
| 14937 | ||
| 14938 | osec = sec->output_section; | |
| 14939 | indx = elf_section_data (osec)->dynindx; | |
| 14940 | ||
| 74541ad4 AM |
14941 | if (indx == 0) |
| 14942 | { | |
| 14943 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14944 | && htab->elf.data_index_section != NULL) | |
| 14945 | osec = htab->elf.data_index_section; | |
| 14946 | else | |
| 14947 | osec = htab->elf.text_index_section; | |
| 14948 | indx = elf_section_data (osec)->dynindx; | |
| 14949 | } | |
| 14950 | BFD_ASSERT (indx != 0); | |
| 14951 | ||
| 65f38f15 AM |
14952 | /* We are turning this relocation into one |
| 14953 | against a section symbol, so subtract out | |
| 14954 | the output section's address but not the | |
| 14955 | offset of the input section in the output | |
| 14956 | section. */ | |
| 14957 | outrel.r_addend -= osec->vma; | |
| 14958 | } | |
| 14959 | ||
| 14960 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14961 | } | |
| 14962 | } | |
| 14963 | ||
| 14964 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14965 | if (h != NULL |
| 14966 | ? h->elf.type == STT_GNU_IFUNC | |
| 14967 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
14968 | { |
| 14969 | sreloc = htab->elf.irelplt; | |
| 14970 | if (indx == 0) | |
| 14971 | htab->local_ifunc_resolver = 1; | |
| 14972 | else if (is_static_defined (&h->elf)) | |
| 14973 | htab->maybe_local_ifunc_resolver = 1; | |
| 14974 | } | |
| 65f38f15 AM |
14975 | if (sreloc == NULL) |
| 14976 | abort (); | |
| 14977 | ||
| dfbb6ac9 AM |
14978 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14979 | >= sreloc->size) | |
| 14980 | abort (); | |
| 947216bf AM |
14981 | loc = sreloc->contents; |
| 14982 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14983 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14984 | ||
| 14985 | /* If this reloc is against an external symbol, it will | |
| 14986 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14987 | anything now. However, for the sake of prelink ensure |
| 14988 | that the section contents are a known value. */ | |
| 65f38f15 | 14989 | if (! relocate) |
| 81407a69 AM |
14990 | { |
| 14991 | unresolved_reloc = FALSE; | |
| 14992 | /* The value chosen here is quite arbitrary as ld.so | |
| 14993 | ignores section contents except for the special | |
| 14994 | case of .opd where the contents might be accessed | |
| 14995 | before relocation. Choose zero, as that won't | |
| 14996 | cause reloc overflow. */ | |
| 14997 | relocation = 0; | |
| 14998 | addend = 0; | |
| 14999 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 15000 | to improve backward compatibility with older | |
| 15001 | versions of ld. */ | |
| 15002 | if (r_type == R_PPC64_ADDR64) | |
| 15003 | addend = outrel.r_addend; | |
| 15004 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 15005 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 15006 | addend = outrel.r_offset; |
| 81407a69 | 15007 | } |
| 65f38f15 | 15008 | } |
| 5bd4f169 AM |
15009 | break; |
| 15010 | ||
| 65f38f15 AM |
15011 | case R_PPC64_COPY: |
| 15012 | case R_PPC64_GLOB_DAT: | |
| 15013 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15014 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15015 | case R_PPC64_RELATIVE: |
| 15016 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15017 | files. */ | |
| ae9a127f | 15018 | /* Fall through. */ |
| 65f38f15 AM |
15019 | |
| 15020 | case R_PPC64_PLTGOT16: | |
| 15021 | case R_PPC64_PLTGOT16_DS: | |
| 15022 | case R_PPC64_PLTGOT16_HA: | |
| 15023 | case R_PPC64_PLTGOT16_HI: | |
| 15024 | case R_PPC64_PLTGOT16_LO: | |
| 15025 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15026 | case R_PPC64_PLTREL32: | |
| 15027 | case R_PPC64_PLTREL64: | |
| 15028 | /* These ones haven't been implemented yet. */ | |
| 15029 | ||
| 25f53a85 | 15030 | info->callbacks->einfo |
| 695344c0 | 15031 | /* xgettext:c-format */ |
| c1c8c1ef | 15032 | (_("%P: %pB: %s is not supported for `%pT'\n"), |
| d003868e | 15033 | input_bfd, |
| 4ce794b7 | 15034 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15035 | |
| 15036 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15037 | ret = FALSE; |
| c316a17c | 15038 | goto copy_reloc; |
| 65f38f15 | 15039 | } |
| 5bd4f169 | 15040 | |
| 67f0cbdb AM |
15041 | /* Multi-instruction sequences that access the TOC can be |
| 15042 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 07d6d2b8 | 15043 | to nop; addi rb,r2,x; */ |
| 67f0cbdb AM |
15044 | switch (r_type) |
| 15045 | { | |
| 15046 | default: | |
| 15047 | break; | |
| 15048 | ||
| 15049 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15050 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15051 | case R_PPC64_GOT_TPREL16_HI: | |
| 15052 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15053 | case R_PPC64_GOT16_HI: | |
| 15054 | case R_PPC64_TOC16_HI: | |
| 15055 | /* These relocs would only be useful if building up an | |
| 15056 | offset to later add to r2, perhaps in an indexed | |
| 15057 | addressing mode instruction. Don't try to optimize. | |
| 15058 | Unfortunately, the possibility of someone building up an | |
| 15059 | offset like this or even with the HA relocs, means that | |
| 15060 | we need to check the high insn when optimizing the low | |
| 15061 | insn. */ | |
| 15062 | break; | |
| 15063 | ||
| 15064 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15065 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15066 | case R_PPC64_GOT_TPREL16_HA: | |
| 15067 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15068 | case R_PPC64_GOT16_HA: | |
| 15069 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15070 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15071 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15072 | { |
| 15073 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15074 | bfd_put_32 (input_bfd, NOP, p); | |
| d830549d | 15075 | goto copy_reloc; |
| 98528052 | 15076 | } |
| 67f0cbdb AM |
15077 | break; |
| 15078 | ||
| 15079 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15080 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15081 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15082 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15083 | case R_PPC64_GOT16_LO: | |
| 15084 | case R_PPC64_GOT16_LO_DS: | |
| 15085 | case R_PPC64_TOC16_LO: | |
| 15086 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15087 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15088 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15089 | { |
| 15090 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15091 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15092 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15093 | { | |
| 15094 | /* Transform addic to addi when we change reg. */ | |
| 15095 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15096 | insn |= (14u << 26) | (2 << 16); | |
| 15097 | } | |
| 15098 | else | |
| 67f0cbdb | 15099 | { |
| 98528052 AM |
15100 | insn &= ~(0x1f << 16); |
| 15101 | insn |= 2 << 16; | |
| 67f0cbdb | 15102 | } |
| 560c8763 | 15103 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15104 | } |
| 15105 | break; | |
| 9a23f96e AM |
15106 | |
| 15107 | case R_PPC64_TPREL16_HA: | |
| 15108 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15109 | { | |
| 15110 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15111 | insn = bfd_get_32 (input_bfd, p); | |
| 15112 | if ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 15113 | != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */) | |
| 15114 | /* xgettext:c-format */ | |
| 15115 | info->callbacks->minfo | |
| 15116 | (_("%H: warning: %s unexpected insn %#x.\n"), | |
| d830549d AM |
15117 | input_bfd, input_section, rel->r_offset, |
| 15118 | ppc64_elf_howto_table[r_type]->name, insn); | |
| 9a23f96e | 15119 | else |
| d830549d AM |
15120 | { |
| 15121 | bfd_put_32 (input_bfd, NOP, p); | |
| 15122 | goto copy_reloc; | |
| 15123 | } | |
| 9a23f96e AM |
15124 | } |
| 15125 | break; | |
| 15126 | ||
| 15127 | case R_PPC64_TPREL16_LO: | |
| 15128 | case R_PPC64_TPREL16_LO_DS: | |
| 15129 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15130 | { | |
| 15131 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15132 | insn = bfd_get_32 (input_bfd, p); | |
| 15133 | insn &= ~(0x1f << 16); | |
| 15134 | insn |= 13 << 16; | |
| 15135 | bfd_put_32 (input_bfd, insn, p); | |
| 15136 | } | |
| 15137 | break; | |
| 67f0cbdb AM |
15138 | } |
| 15139 | ||
| 65f38f15 AM |
15140 | /* Do any further special processing. */ |
| 15141 | switch (r_type) | |
| 15142 | { | |
| 15143 | default: | |
| 15144 | break; | |
| 15145 | ||
| 25f23106 | 15146 | case R_PPC64_REL16_HA: |
| a680de9a | 15147 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15148 | case R_PPC64_ADDR16_HA: |
| 15149 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15150 | case R_PPC64_ADDR16_HIGHERA: |
| 15151 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15152 | case R_PPC64_TOC16_HA: |
| 15153 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15154 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15155 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15156 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15157 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15158 | case R_PPC64_DTPREL16_HA: |
| 15159 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15160 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15161 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15162 | /* It's just possible that this symbol is a weak symbol |
| 15163 | that's not actually defined anywhere. In that case, | |
| 15164 | 'sec' would be NULL, and we should leave the symbol | |
| 15165 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15166 | if (sec == NULL) |
| 15167 | break; | |
| 1a0670f3 | 15168 | /* Fall through. */ |
| 5c5f6e17 AM |
15169 | |
| 15170 | case R_PPC64_GOT16_HA: | |
| 15171 | case R_PPC64_PLTGOT16_HA: | |
| 15172 | case R_PPC64_PLT16_HA: | |
| 15173 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15174 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15175 | case R_PPC64_GOT_TPREL16_HA: | |
| 15176 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15177 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15178 | Bits 0:15 are not used. */ | |
| 15179 | addend += 0x8000; | |
| 65f38f15 AM |
15180 | break; |
| 15181 | ||
| 15182 | case R_PPC64_ADDR16_DS: | |
| 15183 | case R_PPC64_ADDR16_LO_DS: | |
| 15184 | case R_PPC64_GOT16_DS: | |
| 15185 | case R_PPC64_GOT16_LO_DS: | |
| 15186 | case R_PPC64_PLT16_LO_DS: | |
| 15187 | case R_PPC64_SECTOFF_DS: | |
| 15188 | case R_PPC64_SECTOFF_LO_DS: | |
| 15189 | case R_PPC64_TOC16_DS: | |
| 15190 | case R_PPC64_TOC16_LO_DS: | |
| 15191 | case R_PPC64_PLTGOT16_DS: | |
| 15192 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15193 | case R_PPC64_GOT_TPREL16_DS: |
| 15194 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15195 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15196 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15197 | case R_PPC64_TPREL16_DS: | |
| 15198 | case R_PPC64_TPREL16_LO_DS: | |
| 15199 | case R_PPC64_DTPREL16_DS: | |
| 15200 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15201 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15202 | mask = 3; | |
| a680de9a PB |
15203 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15204 | the value must be a multiple of 16. This is somewhat of | |
| 15205 | a hack, but the "correct" way to do this by defining _DQ | |
| 15206 | forms of all the _DS relocs bloats all reloc switches in | |
| 15207 | this file. It doesn't make much sense to use these | |
| 15208 | relocs in data, so testing the insn should be safe. */ | |
| 15209 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15210 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15211 | mask = 15; |
| a680de9a PB |
15212 | relocation += addend; |
| 15213 | addend = insn & (mask ^ 3); | |
| 15214 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15215 | { |
| a680de9a | 15216 | relocation ^= relocation & mask; |
| 25f53a85 | 15217 | info->callbacks->einfo |
| 695344c0 | 15218 | /* xgettext:c-format */ |
| 174d0a74 | 15219 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15220 | input_bfd, input_section, rel->r_offset, |
| d830549d | 15221 | ppc64_elf_howto_table[r_type]->name, |
| adadcc0c | 15222 | mask + 1); |
| 65f38f15 | 15223 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15224 | ret = FALSE; |
| c316a17c | 15225 | goto copy_reloc; |
| 65f38f15 AM |
15226 | } |
| 15227 | break; | |
| 5bd4f169 AM |
15228 | } |
| 15229 | ||
| 239e1f3a AM |
15230 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15231 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15232 | not process them. */ | |
| d830549d | 15233 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 | 15234 | if (unresolved_reloc |
| 239e1f3a | 15235 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15236 | && h->elf.def_dynamic) |
| 15237 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15238 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15239 | { |
| 25f53a85 | 15240 | info->callbacks->einfo |
| 695344c0 | 15241 | /* xgettext:c-format */ |
| c1c8c1ef | 15242 | (_("%H: unresolvable %s against `%pT'\n"), |
| 25f53a85 | 15243 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15244 | howto->name, |
| 039b3fef | 15245 | h->elf.root.root.string); |
| b34976b6 | 15246 | ret = FALSE; |
| 9c07fe7c | 15247 | } |
| 5bd4f169 | 15248 | |
| b80eed39 AM |
15249 | /* 16-bit fields in insns mostly have signed values, but a |
| 15250 | few insns have 16-bit unsigned values. Really, we should | |
| 15251 | have different reloc types. */ | |
| 15252 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15253 | && howto->dst_mask == 0xffff | |
| 15254 | && (input_section->flags & SEC_CODE) != 0) | |
| 15255 | { | |
| 15256 | enum complain_overflow complain = complain_overflow_signed; | |
| 15257 | ||
| 15258 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15259 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15260 | complain = complain_overflow_bitfield; | |
| 15261 | else if (howto->rightshift == 0 | |
| 15262 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15263 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15264 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15265 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15266 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15267 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15268 | complain = complain_overflow_unsigned; |
| 15269 | if (howto->complain_on_overflow != complain) | |
| 15270 | { | |
| 15271 | alt_howto = *howto; | |
| 15272 | alt_howto.complain_on_overflow = complain; | |
| 15273 | howto = &alt_howto; | |
| 15274 | } | |
| 15275 | } | |
| 15276 | ||
| a680de9a PB |
15277 | if (r_type == R_PPC64_REL16DX_HA) |
| 15278 | { | |
| 15279 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15280 | if (rel->r_offset + 4 > input_section->size) | |
| 15281 | r = bfd_reloc_outofrange; | |
| 15282 | else | |
| 15283 | { | |
| 15284 | relocation += addend; | |
| 15285 | relocation -= (rel->r_offset | |
| 15286 | + input_section->output_offset | |
| 15287 | + input_section->output_section->vma); | |
| 3de43e7b | 15288 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15289 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15290 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15291 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15292 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15293 | r = bfd_reloc_ok; | |
| 3de43e7b | 15294 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15295 | r = bfd_reloc_overflow; |
| 15296 | } | |
| 15297 | } | |
| 15298 | else | |
| 15299 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15300 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15301 | |
| ef60b7ff | 15302 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15303 | { |
| bc30df16 | 15304 | char *more_info = NULL; |
| b80eed39 | 15305 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15306 | |
| 15307 | if (reloc_dest != DEST_NORMAL) | |
| 15308 | { | |
| 15309 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15310 | if (more_info != NULL) | |
| 15311 | { | |
| 15312 | strcpy (more_info, reloc_name); | |
| 15313 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15314 | ? " (OPD)" : " (stub)")); | |
| 15315 | reloc_name = more_info; | |
| 15316 | } | |
| 15317 | } | |
| 15318 | ||
| cd27b276 | 15319 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15320 | { |
| 8131c122 AM |
15321 | /* On code like "if (foo) foo();" don't report overflow |
| 15322 | on a branch to zero when foo is undefined. */ | |
| 15323 | if (!warned | |
| 15324 | && (reloc_dest == DEST_STUB | |
| 15325 | || !(h != NULL | |
| 15326 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15327 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15328 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15329 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15330 | sym_name, reloc_name, | |
| 15331 | orig_rel.r_addend, | |
| 15332 | input_bfd, input_section, | |
| 15333 | rel->r_offset); | |
| ef60b7ff AM |
15334 | } |
| 15335 | else | |
| 15336 | { | |
| 25f53a85 | 15337 | info->callbacks->einfo |
| 695344c0 | 15338 | /* xgettext:c-format */ |
| c1c8c1ef | 15339 | (_("%H: %s against `%pT': error %d\n"), |
| 25f53a85 | 15340 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15341 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15342 | ret = FALSE; |
| ef60b7ff | 15343 | } |
| bc30df16 AM |
15344 | if (more_info != NULL) |
| 15345 | free (more_info); | |
| 5bd4f169 | 15346 | } |
| c316a17c AM |
15347 | copy_reloc: |
| 15348 | if (wrel != rel) | |
| 15349 | *wrel = *rel; | |
| 15350 | } | |
| 15351 | ||
| 15352 | if (wrel != rel) | |
| 15353 | { | |
| 15354 | Elf_Internal_Shdr *rel_hdr; | |
| 15355 | size_t deleted = rel - wrel; | |
| 15356 | ||
| 15357 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15358 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15359 | if (rel_hdr->sh_size == 0) | |
| 15360 | { | |
| 15361 | /* It is too late to remove an empty reloc section. Leave | |
| 15362 | one NONE reloc. | |
| 15363 | ??? What is wrong with an empty section??? */ | |
| 15364 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15365 | deleted -= 1; | |
| 15366 | } | |
| 15367 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15368 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15369 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15370 | } |
| 15371 | ||
| 645ea6a9 AM |
15372 | /* If we're emitting relocations, then shortly after this function |
| 15373 | returns, reloc offsets and addends for this section will be | |
| 15374 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15375 | file rather than the input. Save a copy of the relocs for |
| 15376 | opd_entry_value. */ | |
| 0e1862bb | 15377 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15378 | { |
| 15379 | bfd_size_type amt; | |
| 15380 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15381 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15382 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15383 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15384 | if (rel == NULL) |
| 15385 | return FALSE; | |
| 15386 | memcpy (rel, relocs, amt); | |
| 15387 | } | |
| 5bd4f169 AM |
15388 | return ret; |
| 15389 | } | |
| 15390 | ||
| 754021d0 AM |
15391 | /* Adjust the value of any local symbols in opd sections. */ |
| 15392 | ||
| 6e0b88f1 | 15393 | static int |
| 754021d0 AM |
15394 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15395 | const char *name ATTRIBUTE_UNUSED, | |
| 15396 | Elf_Internal_Sym *elfsym, | |
| 15397 | asection *input_sec, | |
| 15398 | struct elf_link_hash_entry *h) | |
| 15399 | { | |
| 74f0fb50 AM |
15400 | struct _opd_sec_data *opd; |
| 15401 | long adjust; | |
| 754021d0 AM |
15402 | bfd_vma value; |
| 15403 | ||
| 4025353c | 15404 | if (h != NULL) |
| 6e0b88f1 | 15405 | return 1; |
| 4025353c | 15406 | |
| 74f0fb50 AM |
15407 | opd = get_opd_info (input_sec); |
| 15408 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15409 | return 1; |
| 754021d0 AM |
15410 | |
| 15411 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15412 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15413 | value -= input_sec->output_section->vma; |
| 15414 | ||
| 51aecdc5 | 15415 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15416 | if (adjust == -1) |
| 6e0b88f1 AM |
15417 | return 2; |
| 15418 | ||
| 15419 | elfsym->st_value += adjust; | |
| 15420 | return 1; | |
| 754021d0 AM |
15421 | } |
| 15422 | ||
| 5bd4f169 AM |
15423 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15424 | dynamic sections here. */ | |
| 15425 | ||
| b34976b6 | 15426 | static bfd_boolean |
| 4ce794b7 AM |
15427 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15428 | struct bfd_link_info *info, | |
| 15429 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 15430 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 15431 | { |
| 65f38f15 | 15432 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15433 | struct plt_entry *ent; |
| 15434 | Elf_Internal_Rela rela; | |
| 15435 | bfd_byte *loc; | |
| 5bd4f169 | 15436 | |
| 65f38f15 | 15437 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15438 | if (htab == NULL) |
| 15439 | return FALSE; | |
| 5bd4f169 | 15440 | |
| 8387904d AM |
15441 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15442 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15443 | { | |
| 15444 | /* This symbol has an entry in the procedure linkage | |
| 15445 | table. Set it up. */ | |
| e054468f AM |
15446 | if (!htab->elf.dynamic_sections_created |
| 15447 | || h->dynindx == -1) | |
| 15448 | { | |
| 15449 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15450 | && h->def_regular | |
| 15451 | && (h->root.type == bfd_link_hash_defined | |
| 15452 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15453 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15454 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15455 | + ent->plt.offset); |
| ee67d69a AM |
15456 | if (htab->opd_abi) |
| 15457 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15458 | else | |
| 15459 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15460 | rela.r_addend = (h->root.u.def.value |
| 15461 | + h->root.u.def.section->output_offset | |
| 15462 | + h->root.u.def.section->output_section->vma | |
| 15463 | + ent->addend); | |
| 33e44f2e AM |
15464 | loc = (htab->elf.irelplt->contents |
| 15465 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15466 | * sizeof (Elf64_External_Rela))); |
| 82e66161 | 15467 | htab->local_ifunc_resolver = 1; |
| e054468f AM |
15468 | } |
| 15469 | else | |
| 15470 | { | |
| 33e44f2e AM |
15471 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15472 | + htab->elf.splt->output_offset | |
| 25f23106 | 15473 | + ent->plt.offset); |
| e054468f AM |
15474 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15475 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15476 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15477 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15478 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 82e66161 AM |
15479 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) |
| 15480 | htab->maybe_local_ifunc_resolver = 1; | |
| e054468f | 15481 | } |
| 8387904d | 15482 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15483 | |
| 15484 | if (!htab->opd_abi) | |
| 15485 | { | |
| 15486 | if (!h->def_regular) | |
| 15487 | { | |
| 15488 | /* Mark the symbol as undefined, rather than as | |
| 15489 | defined in glink. Leave the value if there were | |
| 15490 | any relocations where pointer equality matters | |
| 15491 | (this is a clue for the dynamic linker, to make | |
| 15492 | function pointer comparisons work between an | |
| 15493 | application and shared library), otherwise set it | |
| 15494 | to zero. */ | |
| 15495 | sym->st_shndx = SHN_UNDEF; | |
| 15496 | if (!h->pointer_equality_needed) | |
| 15497 | sym->st_value = 0; | |
| 15498 | else if (!h->ref_regular_nonweak) | |
| 15499 | { | |
| 15500 | /* This breaks function pointer comparisons, but | |
| 15501 | that is better than breaking tests for a NULL | |
| 15502 | function pointer. */ | |
| 15503 | sym->st_value = 0; | |
| 15504 | } | |
| 15505 | } | |
| 15506 | } | |
| 8387904d | 15507 | } |
| 5bd4f169 | 15508 | |
| f5385ebf | 15509 | if (h->needs_copy) |
| 5bd4f169 | 15510 | { |
| 65f38f15 | 15511 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15512 | asection *srel; |
| 5bd4f169 | 15513 | |
| 65f38f15 AM |
15514 | if (h->dynindx == -1 |
| 15515 | || (h->root.type != bfd_link_hash_defined | |
| 15516 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15517 | || htab->elf.srelbss == NULL |
| 15518 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15519 | abort (); |
| 5bd4f169 AM |
15520 | |
| 15521 | rela.r_offset = (h->root.u.def.value | |
| 15522 | + h->root.u.def.section->output_section->vma | |
| 15523 | + h->root.u.def.section->output_offset); | |
| 15524 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15525 | rela.r_addend = 0; | |
| afbf7e8e | 15526 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
15527 | srel = htab->elf.sreldynrelro; |
| 15528 | else | |
| 15529 | srel = htab->elf.srelbss; | |
| 15530 | loc = srel->contents; | |
| 15531 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15532 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15533 | } |
| 15534 | ||
| b34976b6 | 15535 | return TRUE; |
| 5bd4f169 AM |
15536 | } |
| 15537 | ||
| 65f38f15 AM |
15538 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15539 | dynamic linker, before writing them out. */ | |
| 15540 | ||
| 15541 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15542 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15543 | const asection *rel_sec, | |
| 15544 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15545 | { |
| 04c9666a | 15546 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15547 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15548 | ||
| 33e44f2e | 15549 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15550 | return reloc_class_ifunc; |
| a33d1f77 | 15551 | |
| 4ce794b7 | 15552 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15553 | switch (r_type) |
| 65f38f15 AM |
15554 | { |
| 15555 | case R_PPC64_RELATIVE: | |
| 15556 | return reloc_class_relative; | |
| 15557 | case R_PPC64_JMP_SLOT: | |
| 15558 | return reloc_class_plt; | |
| 15559 | case R_PPC64_COPY: | |
| 15560 | return reloc_class_copy; | |
| 15561 | default: | |
| 15562 | return reloc_class_normal; | |
| 15563 | } | |
| 15564 | } | |
| 15565 | ||
| 5bd4f169 AM |
15566 | /* Finish up the dynamic sections. */ |
| 15567 | ||
| b34976b6 | 15568 | static bfd_boolean |
| 4ce794b7 AM |
15569 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15570 | struct bfd_link_info *info) | |
| 5bd4f169 | 15571 | { |
| 65f38f15 AM |
15572 | struct ppc_link_hash_table *htab; |
| 15573 | bfd *dynobj; | |
| 5bd4f169 | 15574 | asection *sdyn; |
| 5bd4f169 | 15575 | |
| 65f38f15 | 15576 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15577 | if (htab == NULL) |
| 15578 | return FALSE; | |
| 15579 | ||
| 65f38f15 | 15580 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15581 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15582 | |
| 65f38f15 | 15583 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15584 | { |
| 5bd4f169 AM |
15585 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15586 | ||
| 33e44f2e | 15587 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15588 | abort (); |
| 5bd4f169 AM |
15589 | |
| 15590 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15591 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15592 | for (; dyncon < dynconend; dyncon++) |
| 15593 | { | |
| 15594 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15595 | asection *s; |
| 5bd4f169 AM |
15596 | |
| 15597 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15598 | ||
| 15599 | switch (dyn.d_tag) | |
| 15600 | { | |
| 65f38f15 AM |
15601 | default: |
| 15602 | continue; | |
| 5bd4f169 | 15603 | |
| 5d1634d7 | 15604 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15605 | s = htab->glink; |
| 6348e046 | 15606 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15607 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15608 | of glink rather than the first entry point, which is | |
| 15609 | what ld.so needs, and now have a bigger stub to | |
| 15610 | support automatic multiple TOCs. */ | |
| 9e390558 | 15611 | dyn.d_un.d_ptr += GLINK_PLTRESOLVE_SIZE (htab) - 8 * 4; |
| 5d1634d7 AM |
15612 | break; |
| 15613 | ||
| 19397422 AM |
15614 | case DT_PPC64_OPD: |
| 15615 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15616 | if (s == NULL) |
| 15617 | continue; | |
| 15618 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15619 | break; |
| 15620 | ||
| e8910a83 AM |
15621 | case DT_PPC64_OPT: |
| 15622 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15623 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
15624 | if (htab->has_plt_localentry0) |
| 15625 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
15626 | break; |
| 15627 | ||
| 19397422 AM |
15628 | case DT_PPC64_OPDSZ: |
| 15629 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15630 | if (s == NULL) |
| 15631 | continue; | |
| eea6121a | 15632 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15633 | break; |
| 15634 | ||
| 65f38f15 | 15635 | case DT_PLTGOT: |
| 33e44f2e | 15636 | s = htab->elf.splt; |
| 6348e046 | 15637 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15638 | break; |
| 15639 | ||
| 15640 | case DT_JMPREL: | |
| 33e44f2e | 15641 | s = htab->elf.srelplt; |
| 6348e046 | 15642 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15643 | break; |
| 5bd4f169 | 15644 | |
| 65f38f15 | 15645 | case DT_PLTRELSZ: |
| 33e44f2e | 15646 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15647 | break; |
| 82e66161 AM |
15648 | |
| 15649 | case DT_TEXTREL: | |
| 15650 | if (htab->local_ifunc_resolver) | |
| 15651 | info->callbacks->einfo | |
| 15652 | (_("%X%P: text relocations and GNU indirect " | |
| 15653 | "functions will result in a segfault at runtime\n")); | |
| 15654 | else if (htab->maybe_local_ifunc_resolver) | |
| 15655 | info->callbacks->einfo | |
| 15656 | (_("%P: warning: text relocations and GNU indirect " | |
| 15657 | "functions may result in a segfault at runtime\n")); | |
| 15658 | continue; | |
| 5bd4f169 | 15659 | } |
| 5bd4f169 | 15660 | |
| 65f38f15 | 15661 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15662 | } |
| 5bd4f169 AM |
15663 | } |
| 15664 | ||
| 6528b6eb AM |
15665 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 15666 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15667 | { |
| 15668 | /* Fill in the first entry in the global offset table. | |
| 15669 | We use it to hold the link-time TOCbase. */ | |
| 15670 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15671 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15672 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15673 | |
| 15674 | /* Set .got entry size. */ | |
| 33e44f2e | 15675 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15676 | } |
| 15677 | ||
| 6528b6eb AM |
15678 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 15679 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15680 | { |
| 15681 | /* Set .plt entry size. */ | |
| 33e44f2e | 15682 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15683 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15684 | } |
| 15685 | ||
| 84f5d08e AM |
15686 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15687 | brlt ourselves if emitrelocations. */ | |
| 15688 | if (htab->brlt != NULL | |
| 15689 | && htab->brlt->reloc_count != 0 | |
| 15690 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15691 | htab->brlt, | |
| d4730f92 | 15692 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15693 | elf_section_data (htab->brlt)->relocs, |
| 15694 | NULL)) | |
| 15695 | return FALSE; | |
| 15696 | ||
| 176a0d42 AM |
15697 | if (htab->glink != NULL |
| 15698 | && htab->glink->reloc_count != 0 | |
| 15699 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15700 | htab->glink, | |
| d4730f92 | 15701 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15702 | elf_section_data (htab->glink)->relocs, |
| 15703 | NULL)) | |
| 15704 | return FALSE; | |
| 15705 | ||
| 58d180e8 | 15706 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15707 | && htab->glink_eh_frame->size != 0) |
| 15708 | { | |
| 15709 | bfd_vma val; | |
| 15710 | bfd_byte *p; | |
| d4aaa2a0 | 15711 | struct map_stub *group; |
| 2e0ce1c8 | 15712 | size_t align = 4; |
| da44f4e5 | 15713 | |
| 2e0ce1c8 AM |
15714 | p = htab->glink_eh_frame->contents; |
| 15715 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
15716 | |
| 15717 | for (group = htab->group; group != NULL; group = group->next) | |
| 15718 | if (group->stub_sec != NULL) | |
| da44f4e5 | 15719 | { |
| da44f4e5 | 15720 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
15721 | val = (group->stub_sec->output_section->vma |
| 15722 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
15723 | val -= (htab->glink_eh_frame->output_section->vma |
| 15724 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15725 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15726 | if (val + 0x80000000 > 0xffffffff) |
| 15727 | { | |
| cf97bcb0 AM |
15728 | _bfd_error_handler |
| 15729 | (_("%s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 15730 | group->stub_sec->name); |
| da44f4e5 AM |
15731 | return FALSE; |
| 15732 | } | |
| d4aaa2a0 AM |
15733 | bfd_put_32 (dynobj, val, p + 8); |
| 15734 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
15735 | } |
| 15736 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15737 | { | |
| da44f4e5 AM |
15738 | /* Offset to .glink. */ |
| 15739 | val = (htab->glink->output_section->vma | |
| 15740 | + htab->glink->output_offset | |
| 15741 | + 8); | |
| 15742 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15743 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15744 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15745 | if (val + 0x80000000 > 0xffffffff) |
| 15746 | { | |
| cf97bcb0 AM |
15747 | _bfd_error_handler |
| 15748 | (_("%s offset too large for .eh_frame sdata4 encoding"), | |
| da44f4e5 AM |
15749 | htab->glink->name); |
| 15750 | return FALSE; | |
| 15751 | } | |
| d4aaa2a0 AM |
15752 | bfd_put_32 (dynobj, val, p + 8); |
| 15753 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
15754 | } |
| 15755 | ||
| 15756 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15757 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15758 | htab->glink_eh_frame, | |
| 15759 | htab->glink_eh_frame->contents)) | |
| 15760 | return FALSE; | |
| 15761 | } | |
| 58d180e8 | 15762 | |
| e717da7e | 15763 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15764 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15765 | bfd. */ | |
| c72f2fb2 | 15766 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15767 | { |
| 15768 | asection *s; | |
| 7b53ace3 | 15769 | |
| 0c8d6e5c | 15770 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15771 | continue; |
| 15772 | ||
| e717da7e AM |
15773 | s = ppc64_elf_tdata (dynobj)->got; |
| 15774 | if (s != NULL | |
| eea6121a | 15775 | && s->size != 0 |
| e717da7e AM |
15776 | && s->output_section != bfd_abs_section_ptr |
| 15777 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15778 | s->contents, s->output_offset, | |
| eea6121a | 15779 | s->size)) |
| e717da7e AM |
15780 | return FALSE; |
| 15781 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15782 | if (s != NULL | |
| eea6121a | 15783 | && s->size != 0 |
| e717da7e AM |
15784 | && s->output_section != bfd_abs_section_ptr |
| 15785 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15786 | s->contents, s->output_offset, | |
| eea6121a | 15787 | s->size)) |
| e717da7e AM |
15788 | return FALSE; |
| 15789 | } | |
| f6c52c13 | 15790 | |
| b34976b6 | 15791 | return TRUE; |
| 5bd4f169 AM |
15792 | } |
| 15793 | ||
| 5bd4f169 | 15794 | #include "elf64-target.h" |
| 7b8e7dad AM |
15795 | |
| 15796 | /* FreeBSD support */ | |
| 15797 | ||
| 15798 | #undef TARGET_LITTLE_SYM | |
| 15799 | #undef TARGET_LITTLE_NAME | |
| 15800 | ||
| 15801 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15802 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15803 | #undef TARGET_BIG_NAME |
| 15804 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15805 | ||
| 15806 | #undef ELF_OSABI | |
| 15807 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15808 | ||
| 15809 | #undef elf64_bed | |
| 15810 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15811 | ||
| 15812 | #include "elf64-target.h" |