projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 2571583a | 2 | Copyright (C) 1999-2017 Free Software Foundation, Inc. |
| 5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 4 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 5 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 6 | |
| ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 8 | |
| ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 12 | (at your option) any later version. |
| 5bd4f169 | 13 | |
| ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| 5bd4f169 | 18 | |
| 4ce794b7 AM |
19 | You should have received a copy of the GNU General Public License along |
| 20 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 21 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 22 | |
| cd123cb7 | 23 | |
| 4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
| 25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 27 | |
| 3db64b00 | 28 | #include "sysdep.h" |
| 183e98be | 29 | #include <stdarg.h> |
| 5bd4f169 | 30 | #include "bfd.h" |
| 5bd4f169 AM |
31 | #include "bfdlink.h" |
| 32 | #include "libbfd.h" | |
| 33 | #include "elf-bfd.h" | |
| 04c9666a | 34 | #include "elf/ppc64.h" |
| 5d1634d7 | 35 | #include "elf64-ppc.h" |
| 58d180e8 | 36 | #include "dwarf2.h" |
| 5bd4f169 | 37 | |
| 805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
40 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 54 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 55 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 56 | static bfd_vma opd_entry_value |
| aef36ac1 | 57 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 58 | |
| 6d00b590 | 59 | #define TARGET_LITTLE_SYM powerpc_elf64_le_vec |
| ad8e1ba5 | 60 | #define TARGET_LITTLE_NAME "elf64-powerpcle" |
| 6d00b590 | 61 | #define TARGET_BIG_SYM powerpc_elf64_vec |
| ad8e1ba5 AM |
62 | #define TARGET_BIG_NAME "elf64-powerpc" |
| 63 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 64 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
65 | #define ELF_MACHINE_CODE EM_PPC64 |
| 66 | #define ELF_MAXPAGESIZE 0x10000 | |
| 04c6a44c | 67 | #define ELF_COMMONPAGESIZE 0x10000 |
| ad8e1ba5 AM |
68 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 69 | ||
| 70 | #define elf_backend_want_got_sym 0 | |
| 71 | #define elf_backend_want_plt_sym 0 | |
| 72 | #define elf_backend_plt_alignment 3 | |
| 73 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 74 | #define elf_backend_got_header_size 8 |
| 5474d94f | 75 | #define elf_backend_want_dynrelro 1 |
| ad8e1ba5 AM |
76 | #define elf_backend_can_gc_sections 1 |
| 77 | #define elf_backend_can_refcount 1 | |
| 78 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 79 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 80 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 81 | |
| e717da7e | 82 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 83 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 84 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
85 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 86 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
87 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 88 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 89 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 90 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| 8c5b4e52 | 91 | #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections |
| ad8e1ba5 AM |
92 | |
| 93 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
94 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 95 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 96 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| 9d19e4fd | 97 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
| ad8e1ba5 | 98 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol |
| 555cd476 | 99 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 100 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 101 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 102 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 103 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| 74f0fb50 | 104 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 105 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 AM |
106 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| 107 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
| 108 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
| 109 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 110 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
111 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 112 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 113 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 114 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 115 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
116 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 117 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 118 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 119 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 120 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 121 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 122 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| 8c5b4e52 | 123 | #define elf_backend_merge_symbol ppc64_elf_merge_symbol |
| 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 | ||
| 71a39c98 | 164 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
165 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 166 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 167 | ||
| 71a39c98 AM |
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 */ | |
| 794e51c0 AM |
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+ */ | |
| 175 | ||
| 71a39c98 | 176 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
177 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 178 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 179 | ||
| a078d95a | 180 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 006589cf AM |
181 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ |
| 182 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 183 | |
| 006589cf AM |
184 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 185 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ | |
| 186 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d AM |
187 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 188 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 189 | ||
| ee4bf8d2 | 190 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 191 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
192 | /* 0: */ |
| 193 | /* .quad plt0-1f */ | |
| 194 | /* __glink: */ | |
| 195 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 196 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 197 | /* 1: */ | |
| 198 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 199 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 200 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
201 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 202 | /* ld %12,0(%11) */ | |
| 203 | /* ld %2,8(%11) */ | |
| 204 | /* mtctr %12 */ | |
| 205 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 206 | /* bctr */ |
| b9e5796b AM |
207 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 208 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 209 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 210 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 211 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
212 | |
| 213 | /* Pad with this. */ | |
| 214 | #define NOP 0x60000000 | |
| 215 | ||
| 721956f4 AM |
216 | /* Some other nops. */ |
| 217 | #define CROR_151515 0x4def7b82 | |
| 218 | #define CROR_313131 0x4ffffb82 | |
| 219 | ||
| cedb70c5 | 220 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
221 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 222 | #define B_DOT 0x48000000 /* b . */ | |
| 223 | ||
| 224 | /* After that, we need two instructions to load the index, followed by | |
| 225 | a branch. */ | |
| 226 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 227 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 228 | |
| deb0e272 AM |
229 | /* Instructions used by the save and restore reg functions. */ |
| 230 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 231 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 232 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 233 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
234 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 235 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
236 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 237 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 238 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 239 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
240 | #define BLR 0x4e800020 /* blr */ |
| 241 | ||
| 41bd81ab AM |
242 | /* Since .opd is an array of descriptors and each entry will end up |
| 243 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 244 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 245 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
246 | #ifndef NO_OPD_RELOCS |
| 247 | #define NO_OPD_RELOCS 0 | |
| 248 | #endif | |
| 810d4e75 | 249 | |
| a4b6fadd AM |
250 | #ifndef ARRAY_SIZE |
| 251 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 252 | #endif | |
| 253 | ||
| 810d4e75 AM |
254 | static inline int |
| 255 | abiversion (bfd *abfd) | |
| 256 | { | |
| 257 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 258 | } | |
| 259 | ||
| 260 | static inline void | |
| 261 | set_abiversion (bfd *abfd, int ver) | |
| 262 | { | |
| 263 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 264 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 265 | } | |
| 5bd4f169 | 266 | \f |
| f5e87a1d | 267 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 268 | |
| 5bd4f169 | 269 | /* Relocation HOWTO's. */ |
| 04c9666a | 270 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
271 | |
| 272 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 273 | /* This reloc does nothing. */ | |
| 274 | HOWTO (R_PPC64_NONE, /* type */ | |
| 275 | 0, /* rightshift */ | |
| 6346d5ca AM |
276 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 277 | 0, /* bitsize */ | |
| b34976b6 | 278 | FALSE, /* pc_relative */ |
| 5bd4f169 | 279 | 0, /* bitpos */ |
| f5e87a1d | 280 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
281 | bfd_elf_generic_reloc, /* special_function */ |
| 282 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 283 | FALSE, /* partial_inplace */ |
| d006db6c | 284 | 0, /* src_mask */ |
| 5bd4f169 | 285 | 0, /* dst_mask */ |
| b34976b6 | 286 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
287 | |
| 288 | /* A standard 32 bit relocation. */ | |
| 289 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 290 | 0, /* rightshift */ | |
| 291 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 292 | 32, /* bitsize */ | |
| b34976b6 | 293 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
294 | 0, /* bitpos */ |
| 295 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 296 | bfd_elf_generic_reloc, /* special_function */ | |
| 297 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 298 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
299 | 0, /* src_mask */ |
| 300 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 301 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
302 | |
| 303 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 304 | FIXME: we don't check that, we just clear them. */ | |
| 305 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 306 | 0, /* rightshift */ | |
| 307 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 308 | 26, /* bitsize */ | |
| b34976b6 | 309 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
310 | 0, /* bitpos */ |
| 311 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 312 | bfd_elf_generic_reloc, /* special_function */ | |
| 313 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 314 | FALSE, /* partial_inplace */ |
| d006db6c | 315 | 0, /* src_mask */ |
| f5e87a1d | 316 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 317 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
318 | |
| 319 | /* A standard 16 bit relocation. */ | |
| 320 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 321 | 0, /* rightshift */ | |
| 322 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 323 | 16, /* bitsize */ | |
| b34976b6 | 324 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
325 | 0, /* bitpos */ |
| 326 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 327 | bfd_elf_generic_reloc, /* special_function */ | |
| 328 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 329 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
330 | 0, /* src_mask */ |
| 331 | 0xffff, /* dst_mask */ | |
| b34976b6 | 332 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
333 | |
| 334 | /* A 16 bit relocation without overflow. */ | |
| 335 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 336 | 0, /* rightshift */ | |
| 337 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 338 | 16, /* bitsize */ | |
| b34976b6 | 339 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
340 | 0, /* bitpos */ |
| 341 | complain_overflow_dont,/* complain_on_overflow */ | |
| 342 | bfd_elf_generic_reloc, /* special_function */ | |
| 343 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 344 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
345 | 0, /* src_mask */ |
| 346 | 0xffff, /* dst_mask */ | |
| b34976b6 | 347 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
348 | |
| 349 | /* Bits 16-31 of an address. */ | |
| 350 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 351 | 16, /* rightshift */ | |
| 352 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 353 | 16, /* bitsize */ | |
| b34976b6 | 354 | FALSE, /* pc_relative */ |
| 5bd4f169 | 355 | 0, /* bitpos */ |
| f9c6b907 | 356 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
357 | bfd_elf_generic_reloc, /* special_function */ |
| 358 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 359 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
360 | 0, /* src_mask */ |
| 361 | 0xffff, /* dst_mask */ | |
| b34976b6 | 362 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
363 | |
| 364 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 365 | bits, treated as a signed number, is negative. */ | |
| 366 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 367 | 16, /* rightshift */ | |
| 368 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 369 | 16, /* bitsize */ | |
| b34976b6 | 370 | FALSE, /* pc_relative */ |
| 5bd4f169 | 371 | 0, /* bitpos */ |
| f9c6b907 | 372 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 373 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 374 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 375 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
376 | 0, /* src_mask */ |
| 377 | 0xffff, /* dst_mask */ | |
| b34976b6 | 378 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
379 | |
| 380 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 381 | FIXME: we don't check that, we just clear them. */ | |
| 382 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 383 | 0, /* rightshift */ | |
| 384 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 385 | 16, /* bitsize */ | |
| b34976b6 | 386 | FALSE, /* pc_relative */ |
| 5bd4f169 | 387 | 0, /* bitpos */ |
| b80eed39 | 388 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 389 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 390 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 391 | FALSE, /* partial_inplace */ |
| d006db6c | 392 | 0, /* src_mask */ |
| f5e87a1d | 393 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 394 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
395 | |
| 396 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 397 | indicate that the branch is expected to be taken. The lower two | |
| 398 | bits must be zero. */ | |
| 399 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 400 | 0, /* rightshift */ | |
| 401 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 402 | 16, /* bitsize */ | |
| b34976b6 | 403 | FALSE, /* pc_relative */ |
| 5bd4f169 | 404 | 0, /* bitpos */ |
| b80eed39 | 405 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 406 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 407 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 408 | FALSE, /* partial_inplace */ |
| d006db6c | 409 | 0, /* src_mask */ |
| f5e87a1d | 410 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 411 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
412 | |
| 413 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 414 | indicate that the branch is not expected to be taken. The lower | |
| 415 | two bits must be zero. */ | |
| 416 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 417 | 0, /* rightshift */ | |
| 418 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 419 | 16, /* bitsize */ | |
| b34976b6 | 420 | FALSE, /* pc_relative */ |
| 5bd4f169 | 421 | 0, /* bitpos */ |
| b80eed39 | 422 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 423 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 424 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 425 | FALSE, /* partial_inplace */ |
| d006db6c | 426 | 0, /* src_mask */ |
| f5e87a1d | 427 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 428 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
429 | |
| 430 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 431 | HOWTO (R_PPC64_REL24, /* type */ | |
| 432 | 0, /* rightshift */ | |
| 433 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 434 | 26, /* bitsize */ | |
| b34976b6 | 435 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
436 | 0, /* bitpos */ |
| 437 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 438 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 439 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 440 | FALSE, /* partial_inplace */ |
| d006db6c | 441 | 0, /* src_mask */ |
| f5e87a1d | 442 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 443 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
444 | |
| 445 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 446 | HOWTO (R_PPC64_REL14, /* type */ | |
| 447 | 0, /* rightshift */ | |
| 448 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 449 | 16, /* bitsize */ | |
| b34976b6 | 450 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
451 | 0, /* bitpos */ |
| 452 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 453 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 454 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 455 | FALSE, /* partial_inplace */ |
| d006db6c | 456 | 0, /* src_mask */ |
| f5e87a1d | 457 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 458 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
459 | |
| 460 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 461 | the branch is expected to be taken. The lower two bits must be | |
| 462 | zero. */ | |
| 463 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 464 | 0, /* rightshift */ | |
| 465 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 466 | 16, /* bitsize */ | |
| b34976b6 | 467 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
468 | 0, /* bitpos */ |
| 469 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 470 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 471 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 472 | FALSE, /* partial_inplace */ |
| d006db6c | 473 | 0, /* src_mask */ |
| f5e87a1d | 474 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 475 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
476 | |
| 477 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 478 | the branch is not expected to be taken. The lower two bits must | |
| 479 | be zero. */ | |
| 480 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 481 | 0, /* rightshift */ | |
| 482 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 483 | 16, /* bitsize */ | |
| b34976b6 | 484 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
485 | 0, /* bitpos */ |
| 486 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 487 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 488 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 489 | FALSE, /* partial_inplace */ |
| d006db6c | 490 | 0, /* src_mask */ |
| f5e87a1d | 491 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 492 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
493 | |
| 494 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 495 | symbol. */ | |
| 496 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 497 | 0, /* rightshift */ | |
| 498 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 499 | 16, /* bitsize */ | |
| b34976b6 | 500 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
501 | 0, /* bitpos */ |
| 502 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 503 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 504 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 505 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
506 | 0, /* src_mask */ |
| 507 | 0xffff, /* dst_mask */ | |
| b34976b6 | 508 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
509 | |
| 510 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 511 | the symbol. */ | |
| 512 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 513 | 0, /* rightshift */ | |
| 514 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 515 | 16, /* bitsize */ | |
| b34976b6 | 516 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
517 | 0, /* bitpos */ |
| 518 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 519 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 520 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 521 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
522 | 0, /* src_mask */ |
| 523 | 0xffff, /* dst_mask */ | |
| b34976b6 | 524 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
525 | |
| 526 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 527 | the symbol. */ | |
| 528 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 529 | 16, /* rightshift */ | |
| 530 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 531 | 16, /* bitsize */ | |
| b34976b6 | 532 | FALSE, /* pc_relative */ |
| 5bd4f169 | 533 | 0, /* bitpos */ |
| f9c6b907 | 534 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 535 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 536 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 537 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
538 | 0, /* src_mask */ |
| 539 | 0xffff, /* dst_mask */ | |
| b34976b6 | 540 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
541 | |
| 542 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 543 | the symbol. */ | |
| 544 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 545 | 16, /* rightshift */ | |
| 546 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 547 | 16, /* bitsize */ | |
| b34976b6 | 548 | FALSE, /* pc_relative */ |
| 5bd4f169 | 549 | 0, /* bitpos */ |
| f9c6b907 | 550 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 551 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 552 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 553 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
554 | 0, /* src_mask */ |
| 555 | 0xffff, /* dst_mask */ | |
| b34976b6 | 556 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
557 | |
| 558 | /* This is used only by the dynamic linker. The symbol should exist | |
| 559 | both in the object being run and in some shared library. The | |
| 560 | dynamic linker copies the data addressed by the symbol from the | |
| 561 | shared library into the object, because the object being | |
| 562 | run has to have the data at some particular address. */ | |
| 563 | HOWTO (R_PPC64_COPY, /* type */ | |
| 564 | 0, /* rightshift */ | |
| f5e87a1d AM |
565 | 0, /* this one is variable size */ |
| 566 | 0, /* bitsize */ | |
| b34976b6 | 567 | FALSE, /* pc_relative */ |
| 5bd4f169 | 568 | 0, /* bitpos */ |
| f5e87a1d AM |
569 | complain_overflow_dont, /* complain_on_overflow */ |
| 570 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 571 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 572 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
573 | 0, /* src_mask */ |
| 574 | 0, /* dst_mask */ | |
| b34976b6 | 575 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
576 | |
| 577 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 578 | entries. */ | |
| 579 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 580 | 0, /* rightshift */ | |
| 581 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 582 | 64, /* bitsize */ | |
| b34976b6 | 583 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
584 | 0, /* bitpos */ |
| 585 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 586 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 587 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 588 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 589 | 0, /* src_mask */ |
| f5e87a1d | 590 | ONES (64), /* dst_mask */ |
| b34976b6 | 591 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
592 | |
| 593 | /* Created by the link editor. Marks a procedure linkage table | |
| 594 | entry for a symbol. */ | |
| 595 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 596 | 0, /* rightshift */ | |
| 597 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 598 | 0, /* bitsize */ | |
| b34976b6 | 599 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
600 | 0, /* bitpos */ |
| 601 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 602 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 603 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 604 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
605 | 0, /* src_mask */ |
| 606 | 0, /* dst_mask */ | |
| b34976b6 | 607 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
608 | |
| 609 | /* Used only by the dynamic linker. When the object is run, this | |
| 610 | doubleword64 is set to the load address of the object, plus the | |
| 611 | addend. */ | |
| 612 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 613 | 0, /* rightshift */ | |
| 614 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 615 | 64, /* bitsize */ | |
| b34976b6 | 616 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
617 | 0, /* bitpos */ |
| 618 | complain_overflow_dont, /* complain_on_overflow */ | |
| 619 | bfd_elf_generic_reloc, /* special_function */ | |
| 620 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 621 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 622 | 0, /* src_mask */ |
| f5e87a1d | 623 | ONES (64), /* dst_mask */ |
| b34976b6 | 624 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
625 | |
| 626 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 627 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 628 | 0, /* rightshift */ | |
| 629 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 630 | 32, /* bitsize */ | |
| b34976b6 | 631 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
632 | 0, /* bitpos */ |
| 633 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 634 | bfd_elf_generic_reloc, /* special_function */ | |
| 635 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 636 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
637 | 0, /* src_mask */ |
| 638 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 639 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
640 | |
| 641 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 642 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 643 | 0, /* rightshift */ | |
| 644 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 645 | 16, /* bitsize */ | |
| b34976b6 | 646 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
647 | 0, /* bitpos */ |
| 648 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 649 | bfd_elf_generic_reloc, /* special_function */ | |
| 650 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 651 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
652 | 0, /* src_mask */ |
| 653 | 0xffff, /* dst_mask */ | |
| b34976b6 | 654 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
655 | |
| 656 | /* 32-bit PC relative. */ | |
| 657 | HOWTO (R_PPC64_REL32, /* type */ | |
| 658 | 0, /* rightshift */ | |
| 659 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 660 | 32, /* bitsize */ | |
| b34976b6 | 661 | TRUE, /* pc_relative */ |
| 5bd4f169 | 662 | 0, /* bitpos */ |
| 5bd4f169 AM |
663 | complain_overflow_signed, /* complain_on_overflow */ |
| 664 | bfd_elf_generic_reloc, /* special_function */ | |
| 665 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 666 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
667 | 0, /* src_mask */ |
| 668 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 669 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 670 | |
| 10ed1bba | 671 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
672 | HOWTO (R_PPC64_PLT32, /* type */ |
| 673 | 0, /* rightshift */ | |
| 674 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 675 | 32, /* bitsize */ | |
| b34976b6 | 676 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
677 | 0, /* bitpos */ |
| 678 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 679 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 680 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 681 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 682 | 0, /* src_mask */ |
| f5e87a1d | 683 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 684 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
685 | |
| 686 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 687 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 688 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 689 | 0, /* rightshift */ | |
| 690 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 691 | 32, /* bitsize */ | |
| b34976b6 | 692 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
693 | 0, /* bitpos */ |
| 694 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 695 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 696 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 697 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 698 | 0, /* src_mask */ |
| f5e87a1d | 699 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 700 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
701 | |
| 702 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 703 | the symbol. */ | |
| 704 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 705 | 0, /* rightshift */ | |
| 706 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 707 | 16, /* bitsize */ | |
| b34976b6 | 708 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
709 | 0, /* bitpos */ |
| 710 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 711 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 712 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 713 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
714 | 0, /* src_mask */ |
| 715 | 0xffff, /* dst_mask */ | |
| b34976b6 | 716 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
717 | |
| 718 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 719 | the symbol. */ | |
| 720 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 721 | 16, /* rightshift */ | |
| 722 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 723 | 16, /* bitsize */ | |
| b34976b6 | 724 | FALSE, /* pc_relative */ |
| 5bd4f169 | 725 | 0, /* bitpos */ |
| f9c6b907 | 726 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 727 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 728 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 729 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
730 | 0, /* src_mask */ |
| 731 | 0xffff, /* dst_mask */ | |
| b34976b6 | 732 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
733 | |
| 734 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 735 | the symbol. */ | |
| 736 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 737 | 16, /* rightshift */ | |
| 738 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 739 | 16, /* bitsize */ | |
| b34976b6 | 740 | FALSE, /* pc_relative */ |
| 5bd4f169 | 741 | 0, /* bitpos */ |
| f9c6b907 | 742 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 743 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 744 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 745 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
746 | 0, /* src_mask */ |
| 747 | 0xffff, /* dst_mask */ | |
| b34976b6 | 748 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 749 | |
| c061c2d8 | 750 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
751 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 752 | 0, /* rightshift */ | |
| c061c2d8 AM |
753 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 754 | 16, /* bitsize */ | |
| b34976b6 | 755 | FALSE, /* pc_relative */ |
| 5bd4f169 | 756 | 0, /* bitpos */ |
| b80eed39 | 757 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 758 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 759 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 760 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 761 | 0, /* src_mask */ |
| c061c2d8 | 762 | 0xffff, /* dst_mask */ |
| b34976b6 | 763 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 764 | |
| c061c2d8 | 765 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
766 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 767 | 0, /* rightshift */ | |
| 768 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 769 | 16, /* bitsize */ | |
| b34976b6 | 770 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
771 | 0, /* bitpos */ |
| 772 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 773 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 774 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 775 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
776 | 0, /* src_mask */ |
| 777 | 0xffff, /* dst_mask */ | |
| b34976b6 | 778 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
779 | |
| 780 | /* 16-bit upper half section relative relocation. */ | |
| 781 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 782 | 16, /* rightshift */ | |
| 783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 784 | 16, /* bitsize */ | |
| b34976b6 | 785 | FALSE, /* pc_relative */ |
| 5bd4f169 | 786 | 0, /* bitpos */ |
| f9c6b907 | 787 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 788 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 789 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 790 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
791 | 0, /* src_mask */ |
| 792 | 0xffff, /* dst_mask */ | |
| b34976b6 | 793 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
794 | |
| 795 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 796 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 797 | 16, /* rightshift */ | |
| 798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 799 | 16, /* bitsize */ | |
| b34976b6 | 800 | FALSE, /* pc_relative */ |
| 5bd4f169 | 801 | 0, /* bitpos */ |
| f9c6b907 | 802 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 803 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 804 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 805 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
806 | 0, /* src_mask */ |
| 807 | 0xffff, /* dst_mask */ | |
| b34976b6 | 808 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 809 | |
| 04c9666a AM |
810 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 811 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
812 | 2, /* rightshift */ |
| 813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 814 | 30, /* bitsize */ | |
| b34976b6 | 815 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
816 | 0, /* bitpos */ |
| 817 | complain_overflow_dont, /* complain_on_overflow */ | |
| 818 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 819 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 820 | FALSE, /* partial_inplace */ |
| d006db6c | 821 | 0, /* src_mask */ |
| 5bd4f169 | 822 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 823 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
824 | |
| 825 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 826 | ||
| 827 | /* A standard 64-bit relocation. */ | |
| 828 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 829 | 0, /* rightshift */ | |
| 830 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 831 | 64, /* bitsize */ | |
| b34976b6 | 832 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
833 | 0, /* bitpos */ |
| 834 | complain_overflow_dont, /* complain_on_overflow */ | |
| 835 | bfd_elf_generic_reloc, /* special_function */ | |
| 836 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 837 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 838 | 0, /* src_mask */ |
| f5e87a1d | 839 | ONES (64), /* dst_mask */ |
| b34976b6 | 840 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
841 | |
| 842 | /* The bits 32-47 of an address. */ | |
| 843 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 844 | 32, /* rightshift */ | |
| 845 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 846 | 16, /* bitsize */ | |
| b34976b6 | 847 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
848 | 0, /* bitpos */ |
| 849 | complain_overflow_dont, /* complain_on_overflow */ | |
| 850 | bfd_elf_generic_reloc, /* special_function */ | |
| 851 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 852 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
853 | 0, /* src_mask */ |
| 854 | 0xffff, /* dst_mask */ | |
| b34976b6 | 855 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
856 | |
| 857 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 858 | 16 bits, treated as a signed number, is negative. */ | |
| 859 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 860 | 32, /* rightshift */ | |
| 861 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 862 | 16, /* bitsize */ | |
| b34976b6 | 863 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
864 | 0, /* bitpos */ |
| 865 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 866 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 867 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 868 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
869 | 0, /* src_mask */ |
| 870 | 0xffff, /* dst_mask */ | |
| b34976b6 | 871 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
872 | |
| 873 | /* The bits 48-63 of an address. */ | |
| 874 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 875 | 48, /* rightshift */ | |
| 876 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 877 | 16, /* bitsize */ | |
| b34976b6 | 878 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
879 | 0, /* bitpos */ |
| 880 | complain_overflow_dont, /* complain_on_overflow */ | |
| 881 | bfd_elf_generic_reloc, /* special_function */ | |
| 882 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 883 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
884 | 0, /* src_mask */ |
| 885 | 0xffff, /* dst_mask */ | |
| b34976b6 | 886 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
887 | |
| 888 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 889 | 16 bits, treated as a signed number, is negative. */ | |
| 890 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 891 | 48, /* rightshift */ | |
| 892 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 893 | 16, /* bitsize */ | |
| b34976b6 | 894 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
895 | 0, /* bitpos */ |
| 896 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 897 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 898 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 899 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
900 | 0, /* src_mask */ |
| 901 | 0xffff, /* dst_mask */ | |
| b34976b6 | 902 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
903 | |
| 904 | /* Like ADDR64, but may be unaligned. */ | |
| 905 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 906 | 0, /* rightshift */ | |
| 907 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 908 | 64, /* bitsize */ | |
| b34976b6 | 909 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
910 | 0, /* bitpos */ |
| 911 | complain_overflow_dont, /* complain_on_overflow */ | |
| 912 | bfd_elf_generic_reloc, /* special_function */ | |
| 913 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 914 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 915 | 0, /* src_mask */ |
| f5e87a1d | 916 | ONES (64), /* dst_mask */ |
| b34976b6 | 917 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
918 | |
| 919 | /* 64-bit relative relocation. */ | |
| 920 | HOWTO (R_PPC64_REL64, /* type */ | |
| 921 | 0, /* rightshift */ | |
| 922 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 923 | 64, /* bitsize */ | |
| b34976b6 | 924 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
925 | 0, /* bitpos */ |
| 926 | complain_overflow_dont, /* complain_on_overflow */ | |
| 927 | bfd_elf_generic_reloc, /* special_function */ | |
| 928 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 929 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 930 | 0, /* src_mask */ |
| f5e87a1d | 931 | ONES (64), /* dst_mask */ |
| b34976b6 | 932 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 933 | |
| cedb70c5 | 934 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
935 | HOWTO (R_PPC64_PLT64, /* type */ |
| 936 | 0, /* rightshift */ | |
| 937 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 938 | 64, /* bitsize */ | |
| b34976b6 | 939 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
940 | 0, /* bitpos */ |
| 941 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 942 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 943 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 944 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 945 | 0, /* src_mask */ |
| f5e87a1d | 946 | ONES (64), /* dst_mask */ |
| b34976b6 | 947 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
948 | |
| 949 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 950 | table. */ | |
| 951 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 952 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 953 | 0, /* rightshift */ | |
| 954 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 955 | 64, /* bitsize */ | |
| b34976b6 | 956 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
957 | 0, /* bitpos */ |
| 958 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 959 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 960 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 961 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 962 | 0, /* src_mask */ |
| f5e87a1d | 963 | ONES (64), /* dst_mask */ |
| b34976b6 | 964 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
965 | |
| 966 | /* 16 bit TOC-relative relocation. */ | |
| 967 | ||
| 968 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 969 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 970 | 0, /* rightshift */ | |
| 971 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 972 | 16, /* bitsize */ | |
| b34976b6 | 973 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
974 | 0, /* bitpos */ |
| 975 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 976 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 977 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 978 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
979 | 0, /* src_mask */ |
| 980 | 0xffff, /* dst_mask */ | |
| b34976b6 | 981 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
982 | |
| 983 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 984 | ||
| 985 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 986 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 987 | 0, /* rightshift */ | |
| 988 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 989 | 16, /* bitsize */ | |
| b34976b6 | 990 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
991 | 0, /* bitpos */ |
| 992 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 993 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 994 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 995 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
996 | 0, /* src_mask */ |
| 997 | 0xffff, /* dst_mask */ | |
| b34976b6 | 998 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
999 | |
| 1000 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1001 | ||
| 1002 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1003 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1004 | 16, /* rightshift */ | |
| 1005 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1006 | 16, /* bitsize */ | |
| b34976b6 | 1007 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1008 | 0, /* bitpos */ |
| f9c6b907 | 1009 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1010 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1011 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1012 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1013 | 0, /* src_mask */ |
| 1014 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1015 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1016 | |
| 1017 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1018 | contents of the low 16 bits, treated as a signed number, is | |
| 1019 | negative. */ | |
| 1020 | ||
| 1021 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1022 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1023 | 16, /* rightshift */ | |
| 1024 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1025 | 16, /* bitsize */ | |
| b34976b6 | 1026 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1027 | 0, /* bitpos */ |
| f9c6b907 | 1028 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1029 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1030 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1031 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1032 | 0, /* src_mask */ |
| 1033 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1034 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1035 | |
| 1036 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1037 | ||
| 1038 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1039 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1040 | 0, /* rightshift */ | |
| 1041 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1042 | 64, /* bitsize */ | |
| b34976b6 | 1043 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1044 | 0, /* bitpos */ |
| b80eed39 | 1045 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1046 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1047 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1048 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1049 | 0, /* src_mask */ |
| f5e87a1d | 1050 | ONES (64), /* dst_mask */ |
| b34976b6 | 1051 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1052 | |
| 1053 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1054 | value to relocate may (!) refer to a PLT entry which the link | |
| 1055 | editor (a) may replace with the symbol value. If the link editor | |
| 1056 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1057 | entry and store the address to the new PLT entry in the GOT. | |
| 1058 | This permits lazy resolution of function symbols at run time. | |
| 1059 | The link editor may also skip all of this and just (c) emit a | |
| 1060 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1061 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1062 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1063 | 0, /* rightshift */ | |
| 1064 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1065 | 16, /* bitsize */ | |
| b34976b6 | 1066 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1067 | 0, /* bitpos */ |
| 1068 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1069 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1070 | "R_PPC64_PLTGOT16", /* name */ |
| 1071 | FALSE, /* partial_inplace */ | |
| 1072 | 0, /* src_mask */ | |
| 1073 | 0xffff, /* dst_mask */ | |
| 1074 | FALSE), /* pcrel_offset */ | |
| 1075 | ||
| 1076 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1077 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1078 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1079 | 0, /* rightshift */ | |
| 1080 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1081 | 16, /* bitsize */ | |
| 1082 | FALSE, /* pc_relative */ | |
| 1083 | 0, /* bitpos */ | |
| 1084 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1085 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1086 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1087 | FALSE, /* partial_inplace */ | |
| 1088 | 0, /* src_mask */ | |
| 1089 | 0xffff, /* dst_mask */ | |
| 1090 | FALSE), /* pcrel_offset */ | |
| 1091 | ||
| 1092 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1093 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1094 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1095 | 16, /* rightshift */ | |
| 1096 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1097 | 16, /* bitsize */ | |
| 1098 | FALSE, /* pc_relative */ | |
| 1099 | 0, /* bitpos */ | |
| f9c6b907 | 1100 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1101 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1102 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1103 | FALSE, /* partial_inplace */ | |
| 1104 | 0, /* src_mask */ | |
| 1105 | 0xffff, /* dst_mask */ | |
| 1106 | FALSE), /* pcrel_offset */ | |
| 1107 | ||
| 1108 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1109 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1110 | is negative. */ | |
| 1111 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1112 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1113 | 16, /* rightshift */ | |
| 1114 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1115 | 16, /* bitsize */ | |
| 1116 | FALSE, /* pc_relative */ | |
| 1117 | 0, /* bitpos */ | |
| f9c6b907 | 1118 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1119 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1120 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1121 | FALSE, /* partial_inplace */ | |
| 1122 | 0, /* src_mask */ | |
| 1123 | 0xffff, /* dst_mask */ | |
| 1124 | FALSE), /* pcrel_offset */ | |
| 1125 | ||
| 1126 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1127 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1128 | 0, /* rightshift */ | |
| 1129 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1130 | 16, /* bitsize */ | |
| 1131 | FALSE, /* pc_relative */ | |
| 1132 | 0, /* bitpos */ | |
| b80eed39 | 1133 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1134 | bfd_elf_generic_reloc, /* special_function */ |
| 1135 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1136 | FALSE, /* partial_inplace */ | |
| 1137 | 0, /* src_mask */ | |
| 1138 | 0xfffc, /* dst_mask */ | |
| 1139 | FALSE), /* pcrel_offset */ | |
| 1140 | ||
| 1141 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1142 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1143 | 0, /* rightshift */ | |
| 1144 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1145 | 16, /* bitsize */ | |
| 1146 | FALSE, /* pc_relative */ | |
| 1147 | 0, /* bitpos */ | |
| 1148 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1149 | bfd_elf_generic_reloc, /* special_function */ | |
| 1150 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1151 | FALSE, /* partial_inplace */ | |
| 1152 | 0, /* src_mask */ | |
| 1153 | 0xfffc, /* dst_mask */ | |
| 1154 | FALSE), /* pcrel_offset */ | |
| 1155 | ||
| 1156 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1157 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1158 | 0, /* rightshift */ | |
| 1159 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1160 | 16, /* bitsize */ | |
| 1161 | FALSE, /* pc_relative */ | |
| 1162 | 0, /* bitpos */ | |
| 1163 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1164 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1165 | "R_PPC64_GOT16_DS", /* name */ | |
| 1166 | FALSE, /* partial_inplace */ | |
| 1167 | 0, /* src_mask */ | |
| 1168 | 0xfffc, /* dst_mask */ | |
| 1169 | FALSE), /* pcrel_offset */ | |
| 1170 | ||
| 1171 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1172 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1173 | 0, /* rightshift */ | |
| 1174 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1175 | 16, /* bitsize */ | |
| 1176 | FALSE, /* pc_relative */ | |
| 1177 | 0, /* bitpos */ | |
| 1178 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1179 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1180 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1181 | FALSE, /* partial_inplace */ | |
| 1182 | 0, /* src_mask */ | |
| 1183 | 0xfffc, /* dst_mask */ | |
| 1184 | FALSE), /* pcrel_offset */ | |
| 1185 | ||
| 1186 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1187 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1188 | 0, /* rightshift */ | |
| 1189 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1190 | 16, /* bitsize */ | |
| 1191 | FALSE, /* pc_relative */ | |
| 1192 | 0, /* bitpos */ | |
| 1193 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1194 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1195 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1196 | FALSE, /* partial_inplace */ | |
| 1197 | 0, /* src_mask */ | |
| 1198 | 0xfffc, /* dst_mask */ | |
| 1199 | FALSE), /* pcrel_offset */ | |
| 1200 | ||
| 1201 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1202 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1203 | 0, /* rightshift */ | |
| 1204 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1205 | 16, /* bitsize */ | |
| 1206 | FALSE, /* pc_relative */ | |
| 1207 | 0, /* bitpos */ | |
| b80eed39 | 1208 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1209 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1210 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1211 | FALSE, /* partial_inplace */ | |
| 1212 | 0, /* src_mask */ | |
| 1213 | 0xfffc, /* dst_mask */ | |
| 1214 | FALSE), /* pcrel_offset */ | |
| 1215 | ||
| 1216 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1217 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1218 | 0, /* rightshift */ | |
| 1219 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1220 | 16, /* bitsize */ | |
| 1221 | FALSE, /* pc_relative */ | |
| 1222 | 0, /* bitpos */ | |
| 1223 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1224 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1225 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1226 | FALSE, /* partial_inplace */ | |
| 1227 | 0, /* src_mask */ | |
| 1228 | 0xfffc, /* dst_mask */ | |
| 1229 | FALSE), /* pcrel_offset */ | |
| 1230 | ||
| 1231 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1232 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1233 | 0, /* rightshift */ | |
| 1234 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1235 | 16, /* bitsize */ | |
| 1236 | FALSE, /* pc_relative */ | |
| 1237 | 0, /* bitpos */ | |
| 1238 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1239 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1240 | "R_PPC64_TOC16_DS", /* name */ | |
| 1241 | FALSE, /* partial_inplace */ | |
| 1242 | 0, /* src_mask */ | |
| 1243 | 0xfffc, /* dst_mask */ | |
| 1244 | FALSE), /* pcrel_offset */ | |
| 1245 | ||
| 1246 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1247 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1248 | 0, /* rightshift */ | |
| 1249 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1250 | 16, /* bitsize */ | |
| 1251 | FALSE, /* pc_relative */ | |
| 1252 | 0, /* bitpos */ | |
| 1253 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1254 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1255 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1256 | FALSE, /* partial_inplace */ | |
| 1257 | 0, /* src_mask */ | |
| 1258 | 0xfffc, /* dst_mask */ | |
| 1259 | FALSE), /* pcrel_offset */ | |
| 1260 | ||
| 1261 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1262 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1263 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1264 | 0, /* rightshift */ |
| 1265 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1266 | 16, /* bitsize */ | |
| 1267 | FALSE, /* pc_relative */ | |
| 1268 | 0, /* bitpos */ | |
| 1269 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1270 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1271 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1272 | FALSE, /* partial_inplace */ | |
| 1273 | 0, /* src_mask */ | |
| 1274 | 0xfffc, /* dst_mask */ | |
| 1275 | FALSE), /* pcrel_offset */ | |
| 1276 | ||
| 1277 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1278 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1279 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1280 | 0, /* rightshift */ | |
| 1281 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1282 | 16, /* bitsize */ | |
| 1283 | FALSE, /* pc_relative */ | |
| 1284 | 0, /* bitpos */ | |
| 1285 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1286 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1287 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1288 | FALSE, /* partial_inplace */ | |
| 1289 | 0, /* src_mask */ | |
| 1290 | 0xfffc, /* dst_mask */ | |
| 1291 | FALSE), /* pcrel_offset */ | |
| 1292 | ||
| 727fc41e | 1293 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1294 | HOWTO (R_PPC64_TLS, |
| 1295 | 0, /* rightshift */ | |
| 1296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1297 | 32, /* bitsize */ | |
| 1298 | FALSE, /* pc_relative */ | |
| 1299 | 0, /* bitpos */ | |
| 1300 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1301 | bfd_elf_generic_reloc, /* special_function */ | |
| 1302 | "R_PPC64_TLS", /* name */ | |
| 1303 | FALSE, /* partial_inplace */ | |
| 1304 | 0, /* src_mask */ | |
| 1305 | 0, /* dst_mask */ | |
| 1306 | FALSE), /* pcrel_offset */ | |
| 1307 | ||
| 727fc41e AM |
1308 | HOWTO (R_PPC64_TLSGD, |
| 1309 | 0, /* rightshift */ | |
| 1310 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1311 | 32, /* bitsize */ | |
| 1312 | FALSE, /* pc_relative */ | |
| 1313 | 0, /* bitpos */ | |
| 1314 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1315 | bfd_elf_generic_reloc, /* special_function */ | |
| 1316 | "R_PPC64_TLSGD", /* name */ | |
| 1317 | FALSE, /* partial_inplace */ | |
| 1318 | 0, /* src_mask */ | |
| 1319 | 0, /* dst_mask */ | |
| 1320 | FALSE), /* pcrel_offset */ | |
| 1321 | ||
| 1322 | HOWTO (R_PPC64_TLSLD, | |
| 1323 | 0, /* rightshift */ | |
| 1324 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1325 | 32, /* bitsize */ | |
| 1326 | FALSE, /* pc_relative */ | |
| 1327 | 0, /* bitpos */ | |
| 1328 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1329 | bfd_elf_generic_reloc, /* special_function */ | |
| 1330 | "R_PPC64_TLSLD", /* name */ | |
| 1331 | FALSE, /* partial_inplace */ | |
| 1332 | 0, /* src_mask */ | |
| 1333 | 0, /* dst_mask */ | |
| 1334 | FALSE), /* pcrel_offset */ | |
| 1335 | ||
| 3b421ab3 AM |
1336 | HOWTO (R_PPC64_TOCSAVE, |
| 1337 | 0, /* rightshift */ | |
| 1338 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1339 | 32, /* bitsize */ | |
| 1340 | FALSE, /* pc_relative */ | |
| 1341 | 0, /* bitpos */ | |
| 1342 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1343 | bfd_elf_generic_reloc, /* special_function */ | |
| 1344 | "R_PPC64_TOCSAVE", /* name */ | |
| 1345 | FALSE, /* partial_inplace */ | |
| 1346 | 0, /* src_mask */ | |
| 1347 | 0, /* dst_mask */ | |
| 1348 | FALSE), /* pcrel_offset */ | |
| 1349 | ||
| 411e1bfb AM |
1350 | /* Computes the load module index of the load module that contains the |
| 1351 | definition of its TLS sym. */ | |
| 1352 | HOWTO (R_PPC64_DTPMOD64, | |
| 1353 | 0, /* rightshift */ | |
| 1354 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1355 | 64, /* bitsize */ | |
| 1356 | FALSE, /* pc_relative */ | |
| 1357 | 0, /* bitpos */ | |
| 1358 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1359 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1360 | "R_PPC64_DTPMOD64", /* name */ | |
| 1361 | FALSE, /* partial_inplace */ | |
| 1362 | 0, /* src_mask */ | |
| 1363 | ONES (64), /* dst_mask */ | |
| 1364 | FALSE), /* pcrel_offset */ | |
| 1365 | ||
| 1366 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1367 | of sym+add and the base address of the thread-local storage block that | |
| 1368 | contains the definition of sym, minus 0x8000. */ | |
| 1369 | HOWTO (R_PPC64_DTPREL64, | |
| 1370 | 0, /* rightshift */ | |
| 1371 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1372 | 64, /* bitsize */ | |
| 1373 | FALSE, /* pc_relative */ | |
| 1374 | 0, /* bitpos */ | |
| 1375 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1376 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1377 | "R_PPC64_DTPREL64", /* name */ | |
| 1378 | FALSE, /* partial_inplace */ | |
| 1379 | 0, /* src_mask */ | |
| 1380 | ONES (64), /* dst_mask */ | |
| 1381 | FALSE), /* pcrel_offset */ | |
| 1382 | ||
| 1383 | /* A 16 bit dtprel reloc. */ | |
| 1384 | HOWTO (R_PPC64_DTPREL16, | |
| 1385 | 0, /* rightshift */ | |
| 1386 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1387 | 16, /* bitsize */ | |
| 1388 | FALSE, /* pc_relative */ | |
| 1389 | 0, /* bitpos */ | |
| 1390 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1391 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1392 | "R_PPC64_DTPREL16", /* name */ | |
| 1393 | FALSE, /* partial_inplace */ | |
| 1394 | 0, /* src_mask */ | |
| 1395 | 0xffff, /* dst_mask */ | |
| 1396 | FALSE), /* pcrel_offset */ | |
| 1397 | ||
| 1398 | /* Like DTPREL16, but no overflow. */ | |
| 1399 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1400 | 0, /* rightshift */ | |
| 1401 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1402 | 16, /* bitsize */ | |
| 1403 | FALSE, /* pc_relative */ | |
| 1404 | 0, /* bitpos */ | |
| 1405 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1406 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1407 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1408 | FALSE, /* partial_inplace */ | |
| 1409 | 0, /* src_mask */ | |
| 1410 | 0xffff, /* dst_mask */ | |
| 1411 | FALSE), /* pcrel_offset */ | |
| 1412 | ||
| 1413 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1414 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1415 | 16, /* rightshift */ | |
| 1416 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1417 | 16, /* bitsize */ | |
| 1418 | FALSE, /* pc_relative */ | |
| 1419 | 0, /* bitpos */ | |
| f9c6b907 | 1420 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1421 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1422 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1423 | FALSE, /* partial_inplace */ | |
| 1424 | 0, /* src_mask */ | |
| 1425 | 0xffff, /* dst_mask */ | |
| 1426 | FALSE), /* pcrel_offset */ | |
| 1427 | ||
| 1428 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1429 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1430 | 16, /* rightshift */ | |
| 1431 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1432 | 16, /* bitsize */ | |
| 1433 | FALSE, /* pc_relative */ | |
| 1434 | 0, /* bitpos */ | |
| f9c6b907 | 1435 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1436 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1437 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1438 | FALSE, /* partial_inplace */ | |
| 1439 | 0, /* src_mask */ | |
| 1440 | 0xffff, /* dst_mask */ | |
| 1441 | FALSE), /* pcrel_offset */ | |
| 1442 | ||
| 1443 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1444 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1445 | 32, /* rightshift */ | |
| 1446 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1447 | 16, /* bitsize */ | |
| 1448 | FALSE, /* pc_relative */ | |
| 1449 | 0, /* bitpos */ | |
| 1450 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1451 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1452 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1453 | FALSE, /* partial_inplace */ | |
| 1454 | 0, /* src_mask */ | |
| 1455 | 0xffff, /* dst_mask */ | |
| 1456 | FALSE), /* pcrel_offset */ | |
| 1457 | ||
| 1458 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1459 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1460 | 32, /* rightshift */ | |
| 1461 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1462 | 16, /* bitsize */ | |
| 1463 | FALSE, /* pc_relative */ | |
| 1464 | 0, /* bitpos */ | |
| 1465 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1466 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1467 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1468 | FALSE, /* partial_inplace */ | |
| 1469 | 0, /* src_mask */ | |
| 1470 | 0xffff, /* dst_mask */ | |
| 1471 | FALSE), /* pcrel_offset */ | |
| 1472 | ||
| 1473 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1474 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1475 | 48, /* rightshift */ | |
| 1476 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1477 | 16, /* bitsize */ | |
| 1478 | FALSE, /* pc_relative */ | |
| 1479 | 0, /* bitpos */ | |
| 1480 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1481 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1482 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1483 | FALSE, /* partial_inplace */ | |
| 1484 | 0, /* src_mask */ | |
| 1485 | 0xffff, /* dst_mask */ | |
| 1486 | FALSE), /* pcrel_offset */ | |
| 1487 | ||
| 1488 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1489 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1490 | 48, /* rightshift */ | |
| 1491 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1492 | 16, /* bitsize */ | |
| 1493 | FALSE, /* pc_relative */ | |
| 1494 | 0, /* bitpos */ | |
| 1495 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1496 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1497 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1498 | FALSE, /* partial_inplace */ | |
| 1499 | 0, /* src_mask */ | |
| 1500 | 0xffff, /* dst_mask */ | |
| 1501 | FALSE), /* pcrel_offset */ | |
| 1502 | ||
| 1503 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1504 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1505 | 0, /* rightshift */ | |
| 1506 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1507 | 16, /* bitsize */ | |
| 1508 | FALSE, /* pc_relative */ | |
| 1509 | 0, /* bitpos */ | |
| 1510 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1511 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1512 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1513 | FALSE, /* partial_inplace */ | |
| 1514 | 0, /* src_mask */ | |
| 1515 | 0xfffc, /* dst_mask */ | |
| 1516 | FALSE), /* pcrel_offset */ | |
| 1517 | ||
| 1518 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1519 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1520 | 0, /* rightshift */ | |
| 1521 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1522 | 16, /* bitsize */ | |
| 1523 | FALSE, /* pc_relative */ | |
| 1524 | 0, /* bitpos */ | |
| 1525 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1526 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1527 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1528 | FALSE, /* partial_inplace */ | |
| 1529 | 0, /* src_mask */ | |
| 1530 | 0xfffc, /* dst_mask */ | |
| 1531 | FALSE), /* pcrel_offset */ | |
| 1532 | ||
| 1533 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1534 | sym+add and the value of the thread pointer (r13). */ | |
| 1535 | HOWTO (R_PPC64_TPREL64, | |
| 1536 | 0, /* rightshift */ | |
| 1537 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1538 | 64, /* bitsize */ | |
| 1539 | FALSE, /* pc_relative */ | |
| 1540 | 0, /* bitpos */ | |
| 1541 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1542 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1543 | "R_PPC64_TPREL64", /* name */ | |
| 1544 | FALSE, /* partial_inplace */ | |
| 1545 | 0, /* src_mask */ | |
| 1546 | ONES (64), /* dst_mask */ | |
| 1547 | FALSE), /* pcrel_offset */ | |
| 1548 | ||
| 1549 | /* A 16 bit tprel reloc. */ | |
| 1550 | HOWTO (R_PPC64_TPREL16, | |
| 1551 | 0, /* rightshift */ | |
| 1552 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1553 | 16, /* bitsize */ | |
| 1554 | FALSE, /* pc_relative */ | |
| 1555 | 0, /* bitpos */ | |
| 1556 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1557 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1558 | "R_PPC64_TPREL16", /* name */ | |
| 1559 | FALSE, /* partial_inplace */ | |
| 1560 | 0, /* src_mask */ | |
| 1561 | 0xffff, /* dst_mask */ | |
| 1562 | FALSE), /* pcrel_offset */ | |
| 1563 | ||
| 1564 | /* Like TPREL16, but no overflow. */ | |
| 1565 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1566 | 0, /* rightshift */ | |
| 1567 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1568 | 16, /* bitsize */ | |
| 1569 | FALSE, /* pc_relative */ | |
| 1570 | 0, /* bitpos */ | |
| 1571 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1572 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1573 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1574 | FALSE, /* partial_inplace */ | |
| 1575 | 0, /* src_mask */ | |
| 1576 | 0xffff, /* dst_mask */ | |
| 1577 | FALSE), /* pcrel_offset */ | |
| 1578 | ||
| 1579 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1580 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1581 | 16, /* rightshift */ | |
| 1582 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1583 | 16, /* bitsize */ | |
| 1584 | FALSE, /* pc_relative */ | |
| 1585 | 0, /* bitpos */ | |
| f9c6b907 | 1586 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1587 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1588 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1589 | FALSE, /* partial_inplace */ | |
| 1590 | 0, /* src_mask */ | |
| 1591 | 0xffff, /* dst_mask */ | |
| 1592 | FALSE), /* pcrel_offset */ | |
| 1593 | ||
| 1594 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1595 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1596 | 16, /* rightshift */ | |
| 1597 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1598 | 16, /* bitsize */ | |
| 1599 | FALSE, /* pc_relative */ | |
| 1600 | 0, /* bitpos */ | |
| f9c6b907 | 1601 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1602 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1603 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1604 | FALSE, /* partial_inplace */ | |
| 1605 | 0, /* src_mask */ | |
| 1606 | 0xffff, /* dst_mask */ | |
| 1607 | FALSE), /* pcrel_offset */ | |
| 1608 | ||
| 1609 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1610 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1611 | 32, /* rightshift */ | |
| 1612 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1613 | 16, /* bitsize */ | |
| 1614 | FALSE, /* pc_relative */ | |
| 1615 | 0, /* bitpos */ | |
| 1616 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1617 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1618 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1619 | FALSE, /* partial_inplace */ | |
| 1620 | 0, /* src_mask */ | |
| 1621 | 0xffff, /* dst_mask */ | |
| 1622 | FALSE), /* pcrel_offset */ | |
| 1623 | ||
| 1624 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1625 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1626 | 32, /* rightshift */ | |
| 1627 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1628 | 16, /* bitsize */ | |
| 1629 | FALSE, /* pc_relative */ | |
| 1630 | 0, /* bitpos */ | |
| 1631 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1632 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1633 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1634 | FALSE, /* partial_inplace */ | |
| 1635 | 0, /* src_mask */ | |
| 1636 | 0xffff, /* dst_mask */ | |
| 1637 | FALSE), /* pcrel_offset */ | |
| 1638 | ||
| 1639 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1640 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1641 | 48, /* rightshift */ | |
| 1642 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1643 | 16, /* bitsize */ | |
| 1644 | FALSE, /* pc_relative */ | |
| 1645 | 0, /* bitpos */ | |
| 1646 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1647 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1648 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1649 | FALSE, /* partial_inplace */ | |
| 1650 | 0, /* src_mask */ | |
| 1651 | 0xffff, /* dst_mask */ | |
| 1652 | FALSE), /* pcrel_offset */ | |
| 1653 | ||
| 1654 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1655 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1656 | 48, /* rightshift */ | |
| 1657 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1658 | 16, /* bitsize */ | |
| 1659 | FALSE, /* pc_relative */ | |
| 1660 | 0, /* bitpos */ | |
| 1661 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1662 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1663 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1664 | FALSE, /* partial_inplace */ | |
| 1665 | 0, /* src_mask */ | |
| 1666 | 0xffff, /* dst_mask */ | |
| 1667 | FALSE), /* pcrel_offset */ | |
| 1668 | ||
| 1669 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1670 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1671 | 0, /* rightshift */ | |
| 1672 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1673 | 16, /* bitsize */ | |
| 1674 | FALSE, /* pc_relative */ | |
| 1675 | 0, /* bitpos */ | |
| 1676 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1677 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1678 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1679 | FALSE, /* partial_inplace */ | |
| 1680 | 0, /* src_mask */ | |
| 1681 | 0xfffc, /* dst_mask */ | |
| 1682 | FALSE), /* pcrel_offset */ | |
| 1683 | ||
| 1684 | /* Like TPREL16_DS, but no overflow. */ | |
| 1685 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1686 | 0, /* rightshift */ | |
| 1687 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1688 | 16, /* bitsize */ | |
| 1689 | FALSE, /* pc_relative */ | |
| 1690 | 0, /* bitpos */ | |
| 1691 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1692 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1693 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1694 | FALSE, /* partial_inplace */ | |
| 1695 | 0, /* src_mask */ | |
| 1696 | 0xfffc, /* dst_mask */ | |
| 1697 | FALSE), /* pcrel_offset */ | |
| 1698 | ||
| 1699 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1700 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1701 | to the first entry relative to the TOC base (r2). */ | |
| 1702 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1703 | 0, /* rightshift */ | |
| 1704 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1705 | 16, /* bitsize */ | |
| 1706 | FALSE, /* pc_relative */ | |
| 1707 | 0, /* bitpos */ | |
| 1708 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1709 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1710 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1711 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1712 | 0, /* src_mask */ |
| 1713 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1714 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1715 | |
| 411e1bfb AM |
1716 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1717 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1718 | 0, /* rightshift */ |
| 1719 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1720 | 16, /* bitsize */ | |
| b34976b6 | 1721 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1722 | 0, /* bitpos */ |
| 1723 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1724 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1725 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1726 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1727 | 0, /* src_mask */ |
| 1728 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1729 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1730 | |
| 411e1bfb AM |
1731 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1732 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1733 | 16, /* rightshift */ |
| 1734 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1735 | 16, /* bitsize */ | |
| b34976b6 | 1736 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1737 | 0, /* bitpos */ |
| f9c6b907 | 1738 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1739 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1740 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1741 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1742 | 0, /* src_mask */ |
| 1743 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1744 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1745 | |
| 411e1bfb AM |
1746 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1747 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1748 | 16, /* rightshift */ |
| 1749 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1750 | 16, /* bitsize */ | |
| b34976b6 | 1751 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1752 | 0, /* bitpos */ |
| f9c6b907 | 1753 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1754 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1755 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1756 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1757 | 0, /* src_mask */ |
| 1758 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1759 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1760 | |
| 411e1bfb AM |
1761 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1762 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1763 | first entry relative to the TOC base (r2). */ | |
| 1764 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1765 | 0, /* rightshift */ |
| 1766 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1767 | 16, /* bitsize */ | |
| b34976b6 | 1768 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1769 | 0, /* bitpos */ |
| 411e1bfb AM |
1770 | complain_overflow_signed, /* complain_on_overflow */ |
| 1771 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1772 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1773 | FALSE, /* partial_inplace */ |
| d006db6c | 1774 | 0, /* src_mask */ |
| 411e1bfb | 1775 | 0xffff, /* dst_mask */ |
| b34976b6 | 1776 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1777 | |
| 411e1bfb AM |
1778 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1779 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1780 | 0, /* rightshift */ |
| 1781 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1782 | 16, /* bitsize */ | |
| b34976b6 | 1783 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1784 | 0, /* bitpos */ |
| 411e1bfb AM |
1785 | complain_overflow_dont, /* complain_on_overflow */ |
| 1786 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1787 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1788 | FALSE, /* partial_inplace */ |
| d006db6c | 1789 | 0, /* src_mask */ |
| 411e1bfb | 1790 | 0xffff, /* dst_mask */ |
| b34976b6 | 1791 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1792 | |
| 411e1bfb AM |
1793 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1794 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1795 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1796 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1797 | 16, /* bitsize */ | |
| b34976b6 | 1798 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1799 | 0, /* bitpos */ |
| f9c6b907 | 1800 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1801 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1802 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1803 | FALSE, /* partial_inplace */ |
| d006db6c | 1804 | 0, /* src_mask */ |
| 411e1bfb | 1805 | 0xffff, /* dst_mask */ |
| b34976b6 | 1806 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1807 | |
| 411e1bfb AM |
1808 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1809 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1810 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1811 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1812 | 16, /* bitsize */ | |
| b34976b6 | 1813 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1814 | 0, /* bitpos */ |
| f9c6b907 | 1815 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1816 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1817 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1818 | FALSE, /* partial_inplace */ |
| d006db6c | 1819 | 0, /* src_mask */ |
| 411e1bfb | 1820 | 0xffff, /* dst_mask */ |
| b34976b6 | 1821 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1822 | |
| 411e1bfb AM |
1823 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1824 | the offset to the entry relative to the TOC base (r2). */ | |
| 1825 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1826 | 0, /* rightshift */ |
| 1827 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1828 | 16, /* bitsize */ | |
| b34976b6 | 1829 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1830 | 0, /* bitpos */ |
| 411e1bfb | 1831 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1832 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1833 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1834 | FALSE, /* partial_inplace */ |
| d006db6c | 1835 | 0, /* src_mask */ |
| 5bd4f169 | 1836 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1837 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1838 | |
| 411e1bfb AM |
1839 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1840 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1841 | 0, /* rightshift */ |
| c061c2d8 AM |
1842 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1843 | 16, /* bitsize */ | |
| b34976b6 | 1844 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1845 | 0, /* bitpos */ |
| 411e1bfb AM |
1846 | complain_overflow_dont, /* complain_on_overflow */ |
| 1847 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1848 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1849 | FALSE, /* partial_inplace */ |
| d006db6c | 1850 | 0, /* src_mask */ |
| c061c2d8 | 1851 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1852 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1853 | |
| 411e1bfb AM |
1854 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1855 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1856 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1857 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1858 | 16, /* bitsize */ | |
| b34976b6 | 1859 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1860 | 0, /* bitpos */ |
| f9c6b907 | 1861 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1862 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1863 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1864 | FALSE, /* partial_inplace */ |
| d006db6c | 1865 | 0, /* src_mask */ |
| 411e1bfb | 1866 | 0xffff, /* dst_mask */ |
| b34976b6 | 1867 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1868 | |
| 411e1bfb AM |
1869 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1870 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1871 | 16, /* rightshift */ | |
| 1872 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1873 | 16, /* bitsize */ | |
| 1874 | FALSE, /* pc_relative */ | |
| 1875 | 0, /* bitpos */ | |
| f9c6b907 | 1876 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1877 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1878 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1879 | FALSE, /* partial_inplace */ | |
| 1880 | 0, /* src_mask */ | |
| 1881 | 0xffff, /* dst_mask */ | |
| 1882 | FALSE), /* pcrel_offset */ | |
| 1883 | ||
| 1884 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1885 | offset to the entry relative to the TOC base (r2). */ | |
| 1886 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1887 | 0, /* rightshift */ |
| 1888 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1889 | 16, /* bitsize */ | |
| b34976b6 | 1890 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1891 | 0, /* bitpos */ |
| 1892 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1893 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1894 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1895 | FALSE, /* partial_inplace */ |
| d006db6c | 1896 | 0, /* src_mask */ |
| ad8e1ba5 | 1897 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1898 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1899 | |
| 411e1bfb AM |
1900 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1901 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1902 | 0, /* rightshift */ |
| 1903 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1904 | 16, /* bitsize */ | |
| b34976b6 | 1905 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1906 | 0, /* bitpos */ |
| 1907 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1908 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1909 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1910 | FALSE, /* partial_inplace */ |
| d006db6c | 1911 | 0, /* src_mask */ |
| ad8e1ba5 | 1912 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1913 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1914 | |
| 411e1bfb AM |
1915 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1916 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1917 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1918 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1919 | 16, /* bitsize */ | |
| b34976b6 | 1920 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1921 | 0, /* bitpos */ |
| f9c6b907 | 1922 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1923 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1924 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1925 | FALSE, /* partial_inplace */ |
| d006db6c | 1926 | 0, /* src_mask */ |
| 411e1bfb | 1927 | 0xffff, /* dst_mask */ |
| b34976b6 | 1928 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1929 | |
| 411e1bfb AM |
1930 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1931 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1932 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1933 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1934 | 16, /* bitsize */ | |
| b34976b6 | 1935 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1936 | 0, /* bitpos */ |
| f9c6b907 | 1937 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1938 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1939 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1940 | FALSE, /* partial_inplace */ |
| d006db6c | 1941 | 0, /* src_mask */ |
| 411e1bfb | 1942 | 0xffff, /* dst_mask */ |
| b34976b6 | 1943 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1944 | |
| 25f23106 AM |
1945 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1946 | 0, /* rightshift */ | |
| 1947 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1948 | 0, /* bitsize */ | |
| 1949 | FALSE, /* pc_relative */ | |
| 1950 | 0, /* bitpos */ | |
| 1951 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1952 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1953 | "R_PPC64_JMP_IREL", /* name */ | |
| 1954 | FALSE, /* partial_inplace */ | |
| 1955 | 0, /* src_mask */ | |
| 1956 | 0, /* dst_mask */ | |
| 1957 | FALSE), /* pcrel_offset */ | |
| 1958 | ||
| e054468f AM |
1959 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1960 | 0, /* rightshift */ | |
| 1961 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1962 | 64, /* bitsize */ | |
| 1963 | FALSE, /* pc_relative */ | |
| 1964 | 0, /* bitpos */ | |
| 1965 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1966 | bfd_elf_generic_reloc, /* special_function */ | |
| 1967 | "R_PPC64_IRELATIVE", /* name */ | |
| 1968 | FALSE, /* partial_inplace */ | |
| 1969 | 0, /* src_mask */ | |
| 1970 | ONES (64), /* dst_mask */ | |
| 1971 | FALSE), /* pcrel_offset */ | |
| 1972 | ||
| 25f23106 AM |
1973 | /* A 16 bit relative relocation. */ |
| 1974 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1975 | 0, /* rightshift */ | |
| 1976 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1977 | 16, /* bitsize */ | |
| 1978 | TRUE, /* pc_relative */ | |
| 1979 | 0, /* bitpos */ | |
| b80eed39 | 1980 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1981 | bfd_elf_generic_reloc, /* special_function */ |
| 1982 | "R_PPC64_REL16", /* name */ | |
| 1983 | FALSE, /* partial_inplace */ | |
| 1984 | 0, /* src_mask */ | |
| 1985 | 0xffff, /* dst_mask */ | |
| 1986 | TRUE), /* pcrel_offset */ | |
| 1987 | ||
| 1988 | /* A 16 bit relative relocation without overflow. */ | |
| 1989 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1990 | 0, /* rightshift */ | |
| 1991 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1992 | 16, /* bitsize */ | |
| 1993 | TRUE, /* pc_relative */ | |
| 1994 | 0, /* bitpos */ | |
| 1995 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1996 | bfd_elf_generic_reloc, /* special_function */ | |
| 1997 | "R_PPC64_REL16_LO", /* name */ | |
| 1998 | FALSE, /* partial_inplace */ | |
| 1999 | 0, /* src_mask */ | |
| 2000 | 0xffff, /* dst_mask */ | |
| 2001 | TRUE), /* pcrel_offset */ | |
| 2002 | ||
| 2003 | /* The high order 16 bits of a relative address. */ | |
| 2004 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2005 | 16, /* rightshift */ | |
| 2006 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2007 | 16, /* bitsize */ | |
| 2008 | TRUE, /* pc_relative */ | |
| 2009 | 0, /* bitpos */ | |
| f9c6b907 | 2010 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2011 | bfd_elf_generic_reloc, /* special_function */ |
| 2012 | "R_PPC64_REL16_HI", /* name */ | |
| 2013 | FALSE, /* partial_inplace */ | |
| 2014 | 0, /* src_mask */ | |
| 2015 | 0xffff, /* dst_mask */ | |
| 2016 | TRUE), /* pcrel_offset */ | |
| 2017 | ||
| 2018 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2019 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2020 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2021 | 16, /* rightshift */ | |
| 2022 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2023 | 16, /* bitsize */ | |
| 2024 | TRUE, /* pc_relative */ | |
| 2025 | 0, /* bitpos */ | |
| f9c6b907 | 2026 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2027 | ppc64_elf_ha_reloc, /* special_function */ |
| 2028 | "R_PPC64_REL16_HA", /* name */ | |
| 2029 | FALSE, /* partial_inplace */ | |
| 2030 | 0, /* src_mask */ | |
| 2031 | 0xffff, /* dst_mask */ | |
| 2032 | TRUE), /* pcrel_offset */ | |
| 2033 | ||
| a680de9a PB |
2034 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2035 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2036 | 16, /* rightshift */ | |
| 2037 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2038 | 16, /* bitsize */ | |
| 2039 | TRUE, /* pc_relative */ | |
| 2040 | 0, /* bitpos */ | |
| 2041 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2042 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2043 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2044 | FALSE, /* partial_inplace */ | |
| 2045 | 0, /* src_mask */ | |
| 2046 | 0x1fffc1, /* dst_mask */ | |
| 2047 | TRUE), /* pcrel_offset */ | |
| 2048 | ||
| 7ba71655 AM |
2049 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2050 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2051 | 16, /* rightshift */ | |
| 2052 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2053 | 16, /* bitsize */ | |
| 2054 | FALSE, /* pc_relative */ | |
| 2055 | 0, /* bitpos */ | |
| 2056 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2057 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2058 | "R_PPC64_16DX_HA", /* name */ | |
| 2059 | FALSE, /* partial_inplace */ | |
| 2060 | 0, /* src_mask */ | |
| 2061 | 0x1fffc1, /* dst_mask */ | |
| 2062 | FALSE), /* pcrel_offset */ | |
| 2063 | ||
| f9c6b907 AM |
2064 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2065 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2066 | 16, /* rightshift */ | |
| 2067 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2068 | 16, /* bitsize */ | |
| 2069 | FALSE, /* pc_relative */ | |
| 2070 | 0, /* bitpos */ | |
| 2071 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2072 | bfd_elf_generic_reloc, /* special_function */ | |
| 2073 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2074 | FALSE, /* partial_inplace */ | |
| 2075 | 0, /* src_mask */ | |
| 2076 | 0xffff, /* dst_mask */ | |
| 2077 | FALSE), /* pcrel_offset */ | |
| 2078 | ||
| 2079 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2080 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2081 | 16, /* rightshift */ | |
| 2082 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2083 | 16, /* bitsize */ | |
| 2084 | FALSE, /* pc_relative */ | |
| 2085 | 0, /* bitpos */ | |
| 2086 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2087 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2088 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2089 | FALSE, /* partial_inplace */ | |
| 2090 | 0, /* src_mask */ | |
| 2091 | 0xffff, /* dst_mask */ | |
| 2092 | FALSE), /* pcrel_offset */ | |
| 2093 | ||
| 2094 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2095 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2096 | 16, /* rightshift */ | |
| 2097 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2098 | 16, /* bitsize */ | |
| 2099 | FALSE, /* pc_relative */ | |
| 2100 | 0, /* bitpos */ | |
| 2101 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2102 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2103 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2104 | FALSE, /* partial_inplace */ | |
| 2105 | 0, /* src_mask */ | |
| 2106 | 0xffff, /* dst_mask */ | |
| 2107 | FALSE), /* pcrel_offset */ | |
| 2108 | ||
| 2109 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2110 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2111 | 16, /* rightshift */ | |
| 2112 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2113 | 16, /* bitsize */ | |
| 2114 | FALSE, /* pc_relative */ | |
| 2115 | 0, /* bitpos */ | |
| 2116 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2117 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2118 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2119 | FALSE, /* partial_inplace */ | |
| 2120 | 0, /* src_mask */ | |
| 2121 | 0xffff, /* dst_mask */ | |
| 2122 | FALSE), /* pcrel_offset */ | |
| 2123 | ||
| 2124 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2125 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2126 | 16, /* rightshift */ | |
| 2127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2128 | 16, /* bitsize */ | |
| 2129 | FALSE, /* pc_relative */ | |
| 2130 | 0, /* bitpos */ | |
| 2131 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2132 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2133 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2134 | FALSE, /* partial_inplace */ | |
| 2135 | 0, /* src_mask */ | |
| 2136 | 0xffff, /* dst_mask */ | |
| 2137 | FALSE), /* pcrel_offset */ | |
| 2138 | ||
| 2139 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2140 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2141 | 16, /* rightshift */ | |
| 2142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2143 | 16, /* bitsize */ | |
| 2144 | FALSE, /* pc_relative */ | |
| 2145 | 0, /* bitpos */ | |
| 2146 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2147 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2148 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2149 | FALSE, /* partial_inplace */ | |
| 2150 | 0, /* src_mask */ | |
| 2151 | 0xffff, /* dst_mask */ | |
| 2152 | FALSE), /* pcrel_offset */ | |
| 2153 | ||
| 006589cf AM |
2154 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2155 | HOWTO (R_PPC64_ENTRY, | |
| 2156 | 0, /* rightshift */ | |
| 2157 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2158 | 32, /* bitsize */ | |
| 2159 | FALSE, /* pc_relative */ | |
| 2160 | 0, /* bitpos */ | |
| 2161 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2162 | bfd_elf_generic_reloc, /* special_function */ | |
| 2163 | "R_PPC64_ENTRY", /* name */ | |
| 2164 | FALSE, /* partial_inplace */ | |
| 2165 | 0, /* src_mask */ | |
| 2166 | 0, /* dst_mask */ | |
| 2167 | FALSE), /* pcrel_offset */ | |
| 2168 | ||
| 45965137 AM |
2169 | /* Like ADDR64, but use local entry point of function. */ |
| 2170 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2171 | 0, /* rightshift */ | |
| 2172 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2173 | 64, /* bitsize */ | |
| 2174 | FALSE, /* pc_relative */ | |
| 2175 | 0, /* bitpos */ | |
| 2176 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2177 | bfd_elf_generic_reloc, /* special_function */ | |
| 2178 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2179 | FALSE, /* partial_inplace */ | |
| 2180 | 0, /* src_mask */ | |
| 2181 | ONES (64), /* dst_mask */ | |
| 2182 | FALSE), /* pcrel_offset */ | |
| 2183 | ||
| 5bd4f169 AM |
2184 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2185 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2186 | 0, /* rightshift */ | |
| 2187 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2188 | 0, /* bitsize */ | |
| b34976b6 | 2189 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2190 | 0, /* bitpos */ |
| 2191 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2192 | NULL, /* special_function */ | |
| 2193 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2194 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2195 | 0, /* src_mask */ |
| 2196 | 0, /* dst_mask */ | |
| b34976b6 | 2197 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2198 | |
| 2199 | /* GNU extension to record C++ vtable member usage. */ | |
| 2200 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2201 | 0, /* rightshift */ | |
| 2202 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2203 | 0, /* bitsize */ | |
| b34976b6 | 2204 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2205 | 0, /* bitpos */ |
| 2206 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2207 | NULL, /* special_function */ | |
| 2208 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2209 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2210 | 0, /* src_mask */ |
| 2211 | 0, /* dst_mask */ | |
| b34976b6 | 2212 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2213 | }; |
| 2214 | ||
| 2215 | \f | |
| 2216 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2217 | be done. */ | |
| 2218 | ||
| 2219 | static void | |
| 4ce794b7 | 2220 | ppc_howto_init (void) |
| 5bd4f169 AM |
2221 | { |
| 2222 | unsigned int i, type; | |
| 2223 | ||
| a4b6fadd | 2224 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2225 | { |
| 2226 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2227 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2228 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2229 | } | |
| 2230 | } | |
| 2231 | ||
| 2232 | static reloc_howto_type * | |
| 4ce794b7 AM |
2233 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2234 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2235 | { |
| 411e1bfb | 2236 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2237 | |
| 2238 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2239 | /* Initialize howto table if needed. */ | |
| 2240 | ppc_howto_init (); | |
| 2241 | ||
| 4ce794b7 | 2242 | switch (code) |
| 5bd4f169 AM |
2243 | { |
| 2244 | default: | |
| 4ce794b7 | 2245 | return NULL; |
| 5bd4f169 | 2246 | |
| 411e1bfb AM |
2247 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2248 | break; | |
| 2249 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2250 | break; | |
| 2251 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2252 | break; | |
| 2253 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2254 | break; | |
| 2255 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2256 | break; | |
| 2257 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2258 | break; | |
| f9c6b907 AM |
2259 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2260 | break; | |
| 411e1bfb | 2261 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2262 | break; |
| f9c6b907 AM |
2263 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2264 | break; | |
| 411e1bfb | 2265 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2284 | break; |
| 411e1bfb | 2285 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2286 | break; |
| 411e1bfb | 2287 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2288 | break; |
| 411e1bfb | 2289 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2296 | break; |
| 411e1bfb | 2297 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2298 | break; |
| 411e1bfb | 2299 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2300 | break; |
| 411e1bfb | 2301 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2302 | break; |
| 411e1bfb | 2303 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2316 | break; |
| 411e1bfb | 2317 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2318 | break; |
| 411e1bfb | 2319 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2320 | break; |
| 411e1bfb | 2321 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2328 | break; |
| 411e1bfb | 2329 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2330 | break; |
| 411e1bfb | 2331 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2332 | break; |
| 411e1bfb | 2333 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2334 | break; |
| 411e1bfb | 2335 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb | 2337 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2338 | break; |
| 411e1bfb | 2339 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2340 | break; |
| 411e1bfb | 2341 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2342 | break; |
| 411e1bfb | 2343 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2344 | break; |
| 411e1bfb | 2345 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2346 | break; |
| 411e1bfb | 2347 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2348 | break; |
| 411e1bfb | 2349 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2350 | break; |
| 411e1bfb | 2351 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2352 | break; |
| 411e1bfb | 2353 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2354 | break; |
| 411e1bfb | 2355 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2356 | break; |
| 411e1bfb | 2357 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2358 | break; |
| 411e1bfb | 2359 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2360 | break; |
| 411e1bfb | 2361 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2362 | break; |
| 411e1bfb | 2363 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2364 | break; |
| 411e1bfb | 2365 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2366 | break; |
| 411e1bfb | 2367 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2368 | break; |
| 411e1bfb | 2369 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2370 | break; |
| 727fc41e AM |
2371 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2372 | break; | |
| 2373 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2374 | break; | |
| 411e1bfb | 2375 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2376 | break; |
| 411e1bfb | 2377 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2378 | break; |
| 411e1bfb | 2379 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2380 | break; |
| 411e1bfb | 2381 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2382 | break; |
| f9c6b907 AM |
2383 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2384 | break; | |
| 411e1bfb | 2385 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2386 | break; |
| f9c6b907 AM |
2387 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2388 | break; | |
| 411e1bfb | 2389 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2390 | break; |
| 411e1bfb AM |
2391 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2392 | break; | |
| 2393 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2394 | break; | |
| 2395 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2396 | break; | |
| f9c6b907 AM |
2397 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2398 | break; | |
| 411e1bfb AM |
2399 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2400 | break; | |
| f9c6b907 AM |
2401 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2402 | break; | |
| 411e1bfb AM |
2403 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2404 | break; | |
| 2405 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2406 | break; | |
| 2407 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2408 | break; | |
| 2409 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2410 | break; | |
| 2411 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2412 | break; | |
| 2413 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2414 | break; | |
| 2415 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2416 | break; | |
| 2417 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2418 | break; | |
| 2419 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2420 | break; | |
| 2421 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2422 | break; | |
| 2423 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2424 | break; | |
| 2425 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2426 | break; | |
| 2427 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2428 | break; | |
| 2429 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2430 | break; | |
| 2431 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2432 | break; | |
| 2433 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2434 | break; | |
| 2435 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2436 | break; | |
| 2437 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2438 | break; | |
| 2439 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2440 | break; | |
| 2441 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2442 | break; | |
| 2443 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2444 | break; | |
| 2445 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2446 | break; | |
| 2447 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2448 | break; | |
| 2449 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2450 | break; | |
| 2451 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2452 | break; | |
| 2453 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2454 | break; | |
| 2455 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2456 | break; | |
| 2457 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2458 | break; | |
| 2459 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2460 | break; | |
| 25f23106 AM |
2461 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2462 | break; | |
| 2463 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2464 | break; | |
| 2465 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2466 | break; | |
| 2467 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2468 | break; | |
| 7ba71655 AM |
2469 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2470 | break; | |
| a680de9a PB |
2471 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2472 | break; | |
| 006589cf AM |
2473 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2474 | break; | |
| 45965137 AM |
2475 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2476 | break; | |
| 411e1bfb AM |
2477 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2478 | break; | |
| 2479 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2480 | break; |
| 2481 | } | |
| 2482 | ||
| 4ce794b7 | 2483 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2484 | }; |
| 2485 | ||
| 157090f7 AM |
2486 | static reloc_howto_type * |
| 2487 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2488 | const char *r_name) | |
| 2489 | { | |
| 2490 | unsigned int i; | |
| 2491 | ||
| a4b6fadd | 2492 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2493 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2494 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2495 | return &ppc64_elf_howto_raw[i]; | |
| 2496 | ||
| 2497 | return NULL; | |
| 2498 | } | |
| 2499 | ||
| 5bd4f169 AM |
2500 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2501 | ||
| 2502 | static void | |
| 4aef7643 | 2503 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2504 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2505 | { |
| 65f38f15 AM |
2506 | unsigned int type; |
| 2507 | ||
| ef60b7ff | 2508 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2509 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2510 | ppc_howto_init (); |
| 2511 | ||
| 65f38f15 | 2512 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2513 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2514 | { |
| 695344c0 | 2515 | /* xgettext:c-format */ |
| 4eca0228 AM |
2516 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
| 2517 | abfd, (int) type); | |
| 3ec2b351 | 2518 | type = R_PPC64_NONE; |
| d0fb9a8d | 2519 | } |
| 65f38f15 | 2520 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2521 | } |
| 2522 | ||
| 04c9666a | 2523 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2524 | |
| 2525 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2526 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2527 | void *data, asection *input_section, | |
| 2528 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2529 | { |
| a680de9a PB |
2530 | enum elf_ppc64_reloc_type r_type; |
| 2531 | long insn; | |
| 2532 | bfd_size_type octets; | |
| 3de43e7b | 2533 | bfd_vma value; |
| a680de9a | 2534 | |
| 805fc799 AM |
2535 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2536 | call the generic function. Any adjustment will be done at final | |
| 2537 | link time. */ | |
| 2538 | if (output_bfd != NULL) | |
| cedb70c5 | 2539 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2540 | input_section, output_bfd, error_message); |
| 2541 | ||
| 2542 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2543 | We won't actually be using the low 16 bits, so trashing them | |
| 2544 | doesn't matter. */ | |
| 2545 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2546 | r_type = reloc_entry->howto->type; |
| 2547 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2548 | return bfd_reloc_continue; | |
| 2549 | ||
| 2550 | value = 0; | |
| 2551 | if (!bfd_is_com_section (symbol->section)) | |
| 2552 | value = symbol->value; | |
| 2553 | value += (reloc_entry->addend | |
| 2554 | + symbol->section->output_offset | |
| 2555 | + symbol->section->output_section->vma); | |
| 2556 | value -= (reloc_entry->address | |
| 2557 | + input_section->output_offset | |
| 2558 | + input_section->output_section->vma); | |
| 3de43e7b | 2559 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2560 | |
| 2561 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2562 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2563 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2564 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2565 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2566 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2567 | return bfd_reloc_overflow; |
| 2568 | return bfd_reloc_ok; | |
| 805fc799 | 2569 | } |
| 5bd4f169 | 2570 | |
| 2441e016 AM |
2571 | static bfd_reloc_status_type |
| 2572 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2573 | void *data, asection *input_section, | |
| 2574 | bfd *output_bfd, char **error_message) | |
| 2575 | { | |
| 2576 | if (output_bfd != NULL) | |
| 2577 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2578 | input_section, output_bfd, error_message); | |
| 2579 | ||
| 699733f6 AM |
2580 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2581 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2582 | { |
| 2583 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2584 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2585 | NULL, NULL, FALSE); |
| 2441e016 AM |
2586 | if (dest != (bfd_vma) -1) |
| 2587 | reloc_entry->addend = dest - (symbol->value | |
| 2588 | + symbol->section->output_section->vma | |
| 2589 | + symbol->section->output_offset); | |
| 2590 | } | |
| 810d4e75 AM |
2591 | else |
| 2592 | { | |
| 2593 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2594 | ||
| 2595 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2596 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2597 | && abiversion (symbol->section->owner) >= 2) |
| 2598 | { | |
| 2599 | unsigned int i; | |
| 2600 | ||
| 2601 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2602 | { | |
| 2603 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2604 | ||
| 2605 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2606 | { | |
| 2607 | elfsym = (elf_symbol_type *) symdef; | |
| 2608 | break; | |
| 2609 | } | |
| 2610 | } | |
| 2611 | } | |
| 2612 | reloc_entry->addend | |
| 2613 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2614 | } | |
| 2441e016 AM |
2615 | return bfd_reloc_continue; |
| 2616 | } | |
| 2617 | ||
| 805fc799 | 2618 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2619 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2620 | void *data, asection *input_section, | |
| 2621 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2622 | { |
| 2623 | long insn; | |
| 04c9666a | 2624 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2625 | bfd_size_type octets; |
| 794e51c0 AM |
2626 | /* Assume 'at' branch hints. */ |
| 2627 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2628 | |
| 2629 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2630 | call the generic function. Any adjustment will be done at final | |
| 2631 | link time. */ | |
| 5bd4f169 | 2632 | if (output_bfd != NULL) |
| cedb70c5 | 2633 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2634 | input_section, output_bfd, error_message); |
| 2635 | ||
| 2636 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2637 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2638 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2639 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2640 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2641 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2642 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2643 | |
| 794e51c0 | 2644 | if (is_isa_v2) |
| 5bd4f169 | 2645 | { |
| 805fc799 AM |
2646 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2647 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2648 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2649 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2650 | insn |= 0x02 << 21; | |
| 2651 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2652 | insn |= 0x08 << 21; | |
| 2653 | else | |
| 2441e016 | 2654 | goto out; |
| 5bd4f169 | 2655 | } |
| 805fc799 AM |
2656 | else |
| 2657 | { | |
| 2658 | bfd_vma target = 0; | |
| 2659 | bfd_vma from; | |
| 5bd4f169 | 2660 | |
| 805fc799 AM |
2661 | if (!bfd_is_com_section (symbol->section)) |
| 2662 | target = symbol->value; | |
| 2663 | target += symbol->section->output_section->vma; | |
| 2664 | target += symbol->section->output_offset; | |
| 2665 | target += reloc_entry->addend; | |
| 5bd4f169 | 2666 | |
| 805fc799 AM |
2667 | from = (reloc_entry->address |
| 2668 | + input_section->output_offset | |
| 2669 | + input_section->output_section->vma); | |
| 5bd4f169 | 2670 | |
| 805fc799 AM |
2671 | /* Invert 'y' bit if not the default. */ |
| 2672 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2673 | insn ^= 0x01 << 21; | |
| 2674 | } | |
| 4ce794b7 | 2675 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2676 | out: |
| 2677 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2678 | input_section, output_bfd, error_message); | |
| 805fc799 | 2679 | } |
| 5bd4f169 | 2680 | |
| 805fc799 | 2681 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2682 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2683 | void *data, asection *input_section, | |
| 2684 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2685 | { |
| 2686 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2687 | call the generic function. Any adjustment will be done at final | |
| 2688 | link time. */ | |
| 2689 | if (output_bfd != NULL) | |
| cedb70c5 | 2690 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2691 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2692 | |
| 805fc799 AM |
2693 | /* Subtract the symbol section base address. */ |
| 2694 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2695 | return bfd_reloc_continue; |
| 2696 | } | |
| 2697 | ||
| 805fc799 | 2698 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2699 | ppc64_elf_sectoff_ha_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 AM |
2708 | input_section, output_bfd, error_message); |
| 2709 | ||
| 2710 | /* Subtract the symbol section base address. */ | |
| 2711 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2712 | ||
| 2713 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2714 | reloc_entry->addend += 0x8000; | |
| 2715 | return bfd_reloc_continue; | |
| 2716 | } | |
| 2717 | ||
| 2718 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2719 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2720 | void *data, asection *input_section, | |
| 2721 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2722 | { |
| 2723 | bfd_vma TOCstart; | |
| 2724 | ||
| 2725 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2726 | call the generic function. Any adjustment will be done at final | |
| 2727 | link time. */ | |
| 2728 | if (output_bfd != NULL) | |
| cedb70c5 | 2729 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2730 | input_section, output_bfd, error_message); |
| 2731 | ||
| 2732 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2733 | if (TOCstart == 0) | |
| 1c865ab2 | 2734 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2735 | |
| 2736 | /* Subtract the TOC base address. */ | |
| 2737 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2738 | return bfd_reloc_continue; | |
| 2739 | } | |
| 2740 | ||
| 2741 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2742 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2743 | void *data, asection *input_section, | |
| 2744 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2745 | { |
| 2746 | bfd_vma TOCstart; | |
| 2747 | ||
| 2748 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2749 | call the generic function. Any adjustment will be done at final | |
| 2750 | link time. */ | |
| 2751 | if (output_bfd != NULL) | |
| cedb70c5 | 2752 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2753 | input_section, output_bfd, error_message); |
| 2754 | ||
| 2755 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2756 | if (TOCstart == 0) | |
| 1c865ab2 | 2757 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2758 | |
| 2759 | /* Subtract the TOC base address. */ | |
| 2760 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2761 | ||
| 2762 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2763 | reloc_entry->addend += 0x8000; | |
| 2764 | return bfd_reloc_continue; | |
| 2765 | } | |
| 2766 | ||
| 2767 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2768 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2769 | void *data, asection *input_section, | |
| 2770 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2771 | { |
| 2772 | bfd_vma TOCstart; | |
| 2773 | bfd_size_type octets; | |
| 2774 | ||
| 2775 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2776 | call the generic function. Any adjustment will be done at final | |
| 2777 | link time. */ | |
| 2778 | if (output_bfd != NULL) | |
| cedb70c5 | 2779 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2780 | input_section, output_bfd, error_message); |
| 2781 | ||
| 2782 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2783 | if (TOCstart == 0) | |
| 1c865ab2 | 2784 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2785 | |
| 2786 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2787 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2788 | return bfd_reloc_ok; | |
| 2789 | } | |
| 2790 | ||
| 2791 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2792 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2793 | void *data, asection *input_section, | |
| 2794 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2795 | { |
| 2796 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2797 | call the generic function. Any adjustment will be done at final | |
| 2798 | link time. */ | |
| 2799 | if (output_bfd != NULL) | |
| cedb70c5 | 2800 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2801 | input_section, output_bfd, error_message); |
| 2802 | ||
| 2803 | if (error_message != NULL) | |
| 2804 | { | |
| 2805 | static char buf[60]; | |
| 2806 | sprintf (buf, "generic linker can't handle %s", | |
| 2807 | reloc_entry->howto->name); | |
| 2808 | *error_message = buf; | |
| 2809 | } | |
| 2810 | return bfd_reloc_dangerous; | |
| 2811 | } | |
| 2812 | ||
| 927be08e AM |
2813 | /* Track GOT entries needed for a given symbol. We might need more |
| 2814 | than one got entry per symbol. */ | |
| 2815 | struct got_entry | |
| 2816 | { | |
| 2817 | struct got_entry *next; | |
| 2818 | ||
| 2819 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2820 | bfd_vma addend; | |
| 2821 | ||
| 2822 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2823 | symbol referenced from different input files. This is to support | |
| 2824 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2825 | from one input file to another. After partitioning into TOC groups | |
| 2826 | we merge entries within the group. | |
| 2827 | ||
| 2828 | Point to the BFD owning this GOT entry. */ | |
| 2829 | bfd *owner; | |
| 2830 | ||
| 2831 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2832 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2833 | unsigned char tls_type; |
| 927be08e AM |
2834 | |
| 2835 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2836 | unsigned char is_indirect; |
| 927be08e AM |
2837 | |
| 2838 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2839 | union | |
| 2840 | { | |
| 2841 | bfd_signed_vma refcount; | |
| 2842 | bfd_vma offset; | |
| 2843 | struct got_entry *ent; | |
| 2844 | } got; | |
| 2845 | }; | |
| 2846 | ||
| 2847 | /* The same for PLT. */ | |
| 2848 | struct plt_entry | |
| 2849 | { | |
| 2850 | struct plt_entry *next; | |
| 2851 | ||
| 2852 | bfd_vma addend; | |
| 2853 | ||
| 2854 | union | |
| 2855 | { | |
| 2856 | bfd_signed_vma refcount; | |
| 2857 | bfd_vma offset; | |
| 2858 | } plt; | |
| 2859 | }; | |
| 2860 | ||
| e717da7e AM |
2861 | struct ppc64_elf_obj_tdata |
| 2862 | { | |
| 2863 | struct elf_obj_tdata elf; | |
| 2864 | ||
| 2865 | /* Shortcuts to dynamic linker sections. */ | |
| 2866 | asection *got; | |
| 2867 | asection *relgot; | |
| 2868 | ||
| b3fac117 AM |
2869 | /* Used during garbage collection. We attach global symbols defined |
| 2870 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2871 | asection *deleted_section; | |
| 81688140 | 2872 | |
| 927be08e | 2873 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2874 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2875 | struct got_entry tlsld_got; |
| 8860955f | 2876 | |
| 729eabd5 AM |
2877 | union { |
| 2878 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2879 | Elf_Internal_Rela *relocs; | |
| 2880 | ||
| 2881 | /* Section contents. */ | |
| 2882 | bfd_byte *contents; | |
| 2883 | } opd; | |
| d77c8a4b AM |
2884 | |
| 2885 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2886 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2887 | unsigned int has_small_toc_reloc : 1; |
| 2888 | ||
| 560c8763 AM |
2889 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2890 | instruction not one we handle. */ | |
| 2891 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2892 | }; |
| 2893 | ||
| 2894 | #define ppc64_elf_tdata(bfd) \ | |
| 2895 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2896 | ||
| 2897 | #define ppc64_tlsld_got(bfd) \ | |
| 2898 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2899 | ||
| 0c8d6e5c AM |
2900 | #define is_ppc64_elf(bfd) \ |
| 2901 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2902 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2903 | |
| e717da7e AM |
2904 | /* Override the generic function because we store some extras. */ |
| 2905 | ||
| 2906 | static bfd_boolean | |
| 2907 | ppc64_elf_mkobject (bfd *abfd) | |
| 2908 | { | |
| 0ffa91dd | 2909 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2910 | PPC64_ELF_DATA); |
| e717da7e AM |
2911 | } |
| 2912 | ||
| feee612b | 2913 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2914 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2915 | |
| b34976b6 | 2916 | static bfd_boolean |
| 4ce794b7 | 2917 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2918 | { |
| 14b57c7c AM |
2919 | if (!abfd->arch_info->the_default) |
| 2920 | return TRUE; | |
| 2921 | ||
| 2922 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2923 | { |
| 2924 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2925 | ||
| 2926 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2927 | { | |
| 2928 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2929 | abfd->arch_info = abfd->arch_info->next; | |
| 2930 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2931 | } | |
| 2932 | } | |
| 14b57c7c | 2933 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2934 | } |
| 2935 | ||
| d37c89e5 AM |
2936 | /* Support for core dump NOTE sections. */ |
| 2937 | ||
| 2938 | static bfd_boolean | |
| 2939 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2940 | { | |
| eea6121a | 2941 | size_t offset, size; |
| d37c89e5 AM |
2942 | |
| 2943 | if (note->descsz != 504) | |
| 2944 | return FALSE; | |
| 2945 | ||
| 2946 | /* pr_cursig */ | |
| 228e534f | 2947 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2948 | |
| 2949 | /* pr_pid */ | |
| 228e534f | 2950 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2951 | |
| 2952 | /* pr_reg */ | |
| 2953 | offset = 112; | |
| eea6121a | 2954 | size = 384; |
| d37c89e5 AM |
2955 | |
| 2956 | /* Make a ".reg/999" section. */ | |
| 2957 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2958 | size, note->descpos + offset); |
| d37c89e5 AM |
2959 | } |
| 2960 | ||
| 2961 | static bfd_boolean | |
| 2962 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2963 | { | |
| 2964 | if (note->descsz != 136) | |
| 2965 | return FALSE; | |
| 2966 | ||
| 228e534f | 2967 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2968 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2969 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2970 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2971 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2972 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2973 | ||
| 2974 | return TRUE; | |
| 2975 | } | |
| 2976 | ||
| 183e98be AM |
2977 | static char * |
| 2978 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2979 | ...) | |
| 2980 | { | |
| 2981 | switch (note_type) | |
| 2982 | { | |
| 2983 | default: | |
| 2984 | return NULL; | |
| 2985 | ||
| 2986 | case NT_PRPSINFO: | |
| 2987 | { | |
| 2988 | char data[136]; | |
| 2989 | va_list ap; | |
| 2990 | ||
| 2991 | va_start (ap, note_type); | |
| 75cd47ed | 2992 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2993 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2994 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2995 | va_end (ap); | |
| 2996 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2997 | "CORE", note_type, data, sizeof (data)); | |
| 2998 | } | |
| 2999 | ||
| 3000 | case NT_PRSTATUS: | |
| 3001 | { | |
| 3002 | char data[504]; | |
| 3003 | va_list ap; | |
| 3004 | long pid; | |
| 3005 | int cursig; | |
| 3006 | const void *greg; | |
| 3007 | ||
| 3008 | va_start (ap, note_type); | |
| 3009 | memset (data, 0, 112); | |
| 3010 | pid = va_arg (ap, long); | |
| 3011 | bfd_put_32 (abfd, pid, data + 32); | |
| 3012 | cursig = va_arg (ap, int); | |
| 3013 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3014 | greg = va_arg (ap, const void *); | |
| 3015 | memcpy (data + 112, greg, 384); | |
| 3016 | memset (data + 496, 0, 8); | |
| 3017 | va_end (ap); | |
| 3018 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3019 | "CORE", note_type, data, sizeof (data)); | |
| 3020 | } | |
| 3021 | } | |
| 3022 | } | |
| 3023 | ||
| 5d35169e AM |
3024 | /* Add extra PPC sections. */ |
| 3025 | ||
| b35d266b | 3026 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3027 | { |
| 0112cd26 NC |
3028 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3029 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3030 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3031 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3032 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3033 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3034 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
3035 | }; |
| 3036 | ||
| 7c8fe5c4 AM |
3037 | enum _ppc64_sec_type { |
| 3038 | sec_normal = 0, | |
| 3039 | sec_opd = 1, | |
| 3040 | sec_toc = 2 | |
| 3041 | }; | |
| 3042 | ||
| f0abc2a1 AM |
3043 | struct _ppc64_elf_section_data |
| 3044 | { | |
| 3045 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3046 | |
| f0abc2a1 AM |
3047 | union |
| 3048 | { | |
| 51aecdc5 AM |
3049 | /* An array with one entry for each opd function descriptor, |
| 3050 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3051 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3052 | struct _opd_sec_data |
| 3053 | { | |
| 3054 | /* Points to the function code section for local opd entries. */ | |
| 3055 | asection **func_sec; | |
| 3056 | ||
| 3057 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3058 | long *adjust; | |
| 3059 | } opd; | |
| 7c8fe5c4 | 3060 | |
| 3a71aa26 AM |
3061 | /* An array for toc sections, indexed by offset/8. */ |
| 3062 | struct _toc_sec_data | |
| 3063 | { | |
| 3064 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3065 | unsigned *symndx; | |
| 3066 | ||
| 3067 | /* And the relocation addend. */ | |
| 3068 | bfd_vma *add; | |
| 3069 | } toc; | |
| 7c8fe5c4 AM |
3070 | } u; |
| 3071 | ||
| 3072 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3073 | |
| 7c8fe5c4 AM |
3074 | /* Flag set when small branches are detected. Used to |
| 3075 | select suitable defaults for the stub group size. */ | |
| 3076 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3077 | }; |
| 3078 | ||
| 3079 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3080 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3081 | |
| 3082 | static bfd_boolean | |
| 4ce794b7 | 3083 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3084 | { |
| f592407e AM |
3085 | if (!sec->used_by_bfd) |
| 3086 | { | |
| 3087 | struct _ppc64_elf_section_data *sdata; | |
| 3088 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3089 | |
| f592407e AM |
3090 | sdata = bfd_zalloc (abfd, amt); |
| 3091 | if (sdata == NULL) | |
| 3092 | return FALSE; | |
| 3093 | sec->used_by_bfd = sdata; | |
| 3094 | } | |
| f0abc2a1 AM |
3095 | |
| 3096 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3097 | } | |
| 4025353c | 3098 | |
| 74f0fb50 | 3099 | static struct _opd_sec_data * |
| 4025353c AM |
3100 | get_opd_info (asection * sec) |
| 3101 | { | |
| 3102 | if (sec != NULL | |
| 3103 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3104 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3105 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3106 | return NULL; |
| 3107 | } | |
| 90e3cdf2 JJ |
3108 | \f |
| 3109 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3110 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3111 | static asection *synthetic_opd; |
| 90e3cdf2 | 3112 | |
| 699733f6 | 3113 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3114 | |
| 3115 | static int | |
| 3116 | compare_symbols (const void *ap, const void *bp) | |
| 3117 | { | |
| 3118 | const asymbol *a = * (const asymbol **) ap; | |
| 3119 | const asymbol *b = * (const asymbol **) bp; | |
| 3120 | ||
| 699733f6 AM |
3121 | /* Section symbols first. */ |
| 3122 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3123 | return -1; |
| 699733f6 | 3124 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3125 | return 1; |
| 3126 | ||
| 699733f6 | 3127 | /* then .opd symbols. */ |
| cd285db5 AM |
3128 | if (synthetic_opd != NULL) |
| 3129 | { | |
| 3130 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3131 | && strcmp (b->section->name, ".opd") != 0) | |
| 3132 | return -1; | |
| 3133 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3134 | && strcmp (b->section->name, ".opd") == 0) | |
| 3135 | return 1; | |
| 3136 | } | |
| 90e3cdf2 | 3137 | |
| 699733f6 | 3138 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3139 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3140 | == (SEC_CODE | SEC_ALLOC) | |
| 3141 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3142 | != (SEC_CODE | SEC_ALLOC)) | |
| 3143 | return -1; | |
| 3144 | ||
| 3145 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3146 | != (SEC_CODE | SEC_ALLOC) | |
| 3147 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3148 | == (SEC_CODE | SEC_ALLOC)) | |
| 3149 | return 1; | |
| 3150 | ||
| 3151 | if (synthetic_relocatable) | |
| 3152 | { | |
| 3153 | if (a->section->id < b->section->id) | |
| 3154 | return -1; | |
| 3155 | ||
| 3156 | if (a->section->id > b->section->id) | |
| 3157 | return 1; | |
| 3158 | } | |
| 3159 | ||
| 3160 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3161 | return -1; | |
| 3162 | ||
| 3163 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3164 | return 1; | |
| 3165 | ||
| 4d35a0aa AM |
3166 | /* For syms with the same value, prefer strong dynamic global function |
| 3167 | syms over other syms. */ | |
| 3168 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3169 | return -1; | |
| 3170 | ||
| 3171 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3172 | return 1; | |
| 3173 | ||
| 3174 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3175 | return -1; | |
| 3176 | ||
| 3177 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3178 | return 1; | |
| 3179 | ||
| 3180 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3181 | return -1; | |
| 3182 | ||
| 3183 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3184 | return 1; | |
| 3185 | ||
| 3186 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3187 | return -1; | |
| 3188 | ||
| 3189 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3190 | return 1; | |
| 3191 | ||
| aaed6f5b | 3192 | return a > b; |
| 90e3cdf2 JJ |
3193 | } |
| 3194 | ||
| 699733f6 | 3195 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3196 | |
| 699733f6 | 3197 | static asymbol * |
| 7292b3ac | 3198 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3199 | { |
| 699733f6 | 3200 | long mid; |
| 90e3cdf2 | 3201 | |
| 7292b3ac | 3202 | if (id == (unsigned) -1) |
| 699733f6 AM |
3203 | { |
| 3204 | while (lo < hi) | |
| 3205 | { | |
| 3206 | mid = (lo + hi) >> 1; | |
| 3207 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3208 | lo = mid + 1; | |
| 3209 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3210 | hi = mid; | |
| 3211 | else | |
| 3212 | return syms[mid]; | |
| 3213 | } | |
| 3214 | } | |
| 3215 | else | |
| 3216 | { | |
| 3217 | while (lo < hi) | |
| 3218 | { | |
| 3219 | mid = (lo + hi) >> 1; | |
| 3220 | if (syms[mid]->section->id < id) | |
| 3221 | lo = mid + 1; | |
| 3222 | else if (syms[mid]->section->id > id) | |
| 3223 | hi = mid; | |
| 3224 | else if (syms[mid]->value < value) | |
| 3225 | lo = mid + 1; | |
| 3226 | else if (syms[mid]->value > value) | |
| 3227 | hi = mid; | |
| 3228 | else | |
| 3229 | return syms[mid]; | |
| 3230 | } | |
| 3231 | } | |
| 3232 | return NULL; | |
| 90e3cdf2 JJ |
3233 | } |
| 3234 | ||
| 468392fb AM |
3235 | static bfd_boolean |
| 3236 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3237 | { | |
| 3238 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3239 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3240 | && section->vma <= vma | |
| 3241 | && vma < section->vma + section->size); | |
| 3242 | } | |
| 3243 | ||
| 699733f6 | 3244 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3245 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3246 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3247 | |
| 3248 | static long | |
| a7535cf3 AM |
3249 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3250 | long static_count, asymbol **static_syms, | |
| 3251 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3252 | asymbol **ret) |
| 90e3cdf2 JJ |
3253 | { |
| 3254 | asymbol *s; | |
| 699733f6 AM |
3255 | long i; |
| 3256 | long count; | |
| 90e3cdf2 | 3257 | char *names; |
| a7535cf3 | 3258 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3259 | asection *opd = NULL; |
| 90e3cdf2 | 3260 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3261 | asymbol **syms; |
| ee67d69a | 3262 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3263 | |
| 3264 | *ret = NULL; | |
| 3265 | ||
| ee67d69a AM |
3266 | if (abi < 2) |
| 3267 | { | |
| 3268 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3269 | if (opd == NULL && abi == 1) | |
| 3270 | return 0; | |
| 3271 | } | |
| 90e3cdf2 | 3272 | |
| a7535cf3 | 3273 | symcount = static_count; |
| c9727e01 | 3274 | if (!relocatable) |
| a7535cf3 | 3275 | symcount += dyn_count; |
| 90e3cdf2 | 3276 | if (symcount == 0) |
| c9727e01 | 3277 | return 0; |
| 90e3cdf2 | 3278 | |
| a7535cf3 AM |
3279 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3280 | if (syms == NULL) | |
| 7356fed5 | 3281 | return -1; |
| a7535cf3 AM |
3282 | |
| 3283 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3284 | { | |
| 3285 | /* Use both symbol tables. */ | |
| 3286 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3287 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3288 | } | |
| 3289 | else if (!relocatable && static_count == 0) | |
| 3290 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3291 | else | |
| 3292 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3293 | ||
| 90e3cdf2 | 3294 | synthetic_relocatable = relocatable; |
| cd285db5 | 3295 | synthetic_opd = opd; |
| 595da8c5 | 3296 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3297 | |
| c9727e01 AM |
3298 | if (!relocatable && symcount > 1) |
| 3299 | { | |
| 3300 | long j; | |
| 3301 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3302 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3303 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3304 | for (i = 1, j = 1; i < symcount; ++i) |
| 3305 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3306 | != syms[i]->value + syms[i]->section->vma) | |
| 3307 | syms[j++] = syms[i]; | |
| 3308 | symcount = j; | |
| 3309 | } | |
| 3310 | ||
| 699733f6 | 3311 | i = 0; |
| cd285db5 AM |
3312 | /* Note that here and in compare_symbols we can't compare opd and |
| 3313 | sym->section directly. With separate debug info files, the | |
| 3314 | symbols will be extracted from the debug file while abfd passed | |
| 3315 | to this function is the real binary. */ | |
| 3316 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 699733f6 AM |
3317 | ++i; |
| 3318 | codesecsym = i; | |
| 90e3cdf2 | 3319 | |
| 699733f6 AM |
3320 | for (; i < symcount; ++i) |
| 3321 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3322 | != (SEC_CODE | SEC_ALLOC)) | |
| 3323 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3324 | break; | |
| 3325 | codesecsymend = i; | |
| 90e3cdf2 | 3326 | |
| 699733f6 AM |
3327 | for (; i < symcount; ++i) |
| 3328 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3329 | break; | |
| 3330 | secsymend = i; | |
| 90e3cdf2 | 3331 | |
| cd285db5 AM |
3332 | if (opd != NULL) |
| 3333 | for (; i < symcount; ++i) | |
| 3334 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3335 | break; | |
| 699733f6 | 3336 | opdsymend = i; |
| 90e3cdf2 | 3337 | |
| 699733f6 AM |
3338 | for (; i < symcount; ++i) |
| 3339 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3340 | != (SEC_CODE | SEC_ALLOC)) | |
| 3341 | break; | |
| 3342 | symcount = i; | |
| 3343 | ||
| c9727e01 | 3344 | count = 0; |
| 90e3cdf2 | 3345 | |
| 699733f6 | 3346 | if (relocatable) |
| 90e3cdf2 | 3347 | { |
| 699733f6 AM |
3348 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3349 | arelent *r; | |
| 3350 | size_t size; | |
| 3351 | long relcount; | |
| 90e3cdf2 | 3352 | |
| 468392fb AM |
3353 | if (opdsymend == secsymend) |
| 3354 | goto done; | |
| 3355 | ||
| 699733f6 | 3356 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3357 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3358 | if (relcount == 0) |
| c9727e01 | 3359 | goto done; |
| 90e3cdf2 | 3360 | |
| 7356fed5 AM |
3361 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3362 | { | |
| 3363 | count = -1; | |
| 3364 | goto done; | |
| 3365 | } | |
| 3366 | ||
| 699733f6 | 3367 | size = 0; |
| 595da8c5 | 3368 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3369 | { |
| 3370 | asymbol *sym; | |
| 90e3cdf2 | 3371 | |
| 595da8c5 | 3372 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3373 | && r->address < syms[i]->value + opd->vma) |
| 3374 | ++r; | |
| 90e3cdf2 | 3375 | |
| 595da8c5 | 3376 | if (r == opd->relocation + relcount) |
| 699733f6 | 3377 | break; |
| 90e3cdf2 | 3378 | |
| 699733f6 AM |
3379 | if (r->address != syms[i]->value + opd->vma) |
| 3380 | continue; | |
| 90e3cdf2 | 3381 | |
| 699733f6 AM |
3382 | if (r->howto->type != R_PPC64_ADDR64) |
| 3383 | continue; | |
| 90e3cdf2 | 3384 | |
| 699733f6 AM |
3385 | sym = *r->sym_ptr_ptr; |
| 3386 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3387 | sym->section->id, sym->value + r->addend)) | |
| 3388 | { | |
| 3389 | ++count; | |
| 3390 | size += sizeof (asymbol); | |
| 3391 | size += strlen (syms[i]->name) + 2; | |
| 3392 | } | |
| 3393 | } | |
| 90e3cdf2 | 3394 | |
| c4b0b099 AM |
3395 | if (size == 0) |
| 3396 | goto done; | |
| 699733f6 AM |
3397 | s = *ret = bfd_malloc (size); |
| 3398 | if (s == NULL) | |
| 3399 | { | |
| 7356fed5 | 3400 | count = -1; |
| c9727e01 | 3401 | goto done; |
| 699733f6 | 3402 | } |
| 90e3cdf2 | 3403 | |
| 699733f6 | 3404 | names = (char *) (s + count); |
| 90e3cdf2 | 3405 | |
| 595da8c5 | 3406 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3407 | { |
| 699733f6 | 3408 | asymbol *sym; |
| 90e3cdf2 | 3409 | |
| 595da8c5 | 3410 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3411 | && r->address < syms[i]->value + opd->vma) |
| 3412 | ++r; | |
| 90e3cdf2 | 3413 | |
| 595da8c5 | 3414 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3415 | break; |
| 3416 | ||
| 3417 | if (r->address != syms[i]->value + opd->vma) | |
| 3418 | continue; | |
| 3419 | ||
| 3420 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3421 | continue; | |
| 90e3cdf2 | 3422 | |
| 699733f6 AM |
3423 | sym = *r->sym_ptr_ptr; |
| 3424 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3425 | sym->section->id, sym->value + r->addend)) | |
| 3426 | { | |
| 3427 | size_t len; | |
| 3428 | ||
| 3429 | *s = *syms[i]; | |
| 6ba2a415 | 3430 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3431 | s->section = sym->section; |
| 3432 | s->value = sym->value + r->addend; | |
| 3433 | s->name = names; | |
| 3434 | *names++ = '.'; | |
| 3435 | len = strlen (syms[i]->name); | |
| 3436 | memcpy (names, syms[i]->name, len + 1); | |
| 3437 | names += len + 1; | |
| 6f610d07 UW |
3438 | /* Have udata.p point back to the original symbol this |
| 3439 | synthetic symbol was derived from. */ | |
| 3440 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3441 | s++; |
| 3442 | } | |
| 3443 | } | |
| 3444 | } | |
| 3445 | else | |
| 90e3cdf2 | 3446 | { |
| 468392fb | 3447 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3448 | bfd_byte *contents = NULL; |
| 699733f6 | 3449 | size_t size; |
| 468392fb AM |
3450 | long plt_count = 0; |
| 3451 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3452 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3453 | arelent *p; | |
| 90e3cdf2 | 3454 | |
| ee67d69a | 3455 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3456 | { |
| c4b0b099 AM |
3457 | free_contents_and_exit_err: |
| 3458 | count = -1; | |
| ee67d69a | 3459 | free_contents_and_exit: |
| 699733f6 | 3460 | if (contents) |
| ee67d69a | 3461 | free (contents); |
| c9727e01 | 3462 | goto done; |
| 699733f6 | 3463 | } |
| 90e3cdf2 | 3464 | |
| 699733f6 AM |
3465 | size = 0; |
| 3466 | for (i = secsymend; i < opdsymend; ++i) | |
| 3467 | { | |
| 3468 | bfd_vma ent; | |
| 90e3cdf2 | 3469 | |
| 5ef11c02 AM |
3470 | /* Ignore bogus symbols. */ |
| 3471 | if (syms[i]->value > opd->size - 8) | |
| 3472 | continue; | |
| 3473 | ||
| 699733f6 AM |
3474 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3475 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3476 | { | |
| 3477 | ++count; | |
| 3478 | size += sizeof (asymbol); | |
| 3479 | size += strlen (syms[i]->name) + 2; | |
| 3480 | } | |
| 3481 | } | |
| 90e3cdf2 | 3482 | |
| 468392fb | 3483 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3484 | if (dyn_count != 0 |
| 3485 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3486 | { |
| 3487 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3488 | size_t extdynsize; | |
| 3489 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3490 | ||
| 3491 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3492 | goto free_contents_and_exit_err; |
| 468392fb AM |
3493 | |
| 3494 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3495 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3496 | ||
| 3497 | extdyn = dynbuf; | |
| 3498 | extdynend = extdyn + dynamic->size; | |
| 3499 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3500 | { | |
| 3501 | Elf_Internal_Dyn dyn; | |
| 3502 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3503 | ||
| 3504 | if (dyn.d_tag == DT_NULL) | |
| 3505 | break; | |
| 3506 | ||
| 3507 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3508 | { | |
| b9e5796b AM |
3509 | /* The first glink stub starts at offset 32; see |
| 3510 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3511 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3512 | /* The .glink section usually does not survive the final |
| 3513 | link; search for the section (usually .text) where the | |
| 3514 | glink stubs now reside. */ | |
| 3515 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3516 | &glink_vma); | |
| 3517 | break; | |
| 3518 | } | |
| 3519 | } | |
| 3520 | ||
| 3521 | free (dynbuf); | |
| 3522 | } | |
| 3523 | ||
| 3524 | if (glink != NULL) | |
| 3525 | { | |
| 3526 | /* Determine __glink trampoline by reading the relative branch | |
| 3527 | from the first glink stub. */ | |
| 3528 | bfd_byte buf[4]; | |
| b9e5796b AM |
3529 | unsigned int off = 0; |
| 3530 | ||
| 3531 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3532 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3533 | { |
| 3534 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3535 | insn ^= B_DOT; | |
| 3536 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3537 | { |
| 3538 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3539 | break; | |
| 3540 | } | |
| 3541 | off += 4; | |
| 3542 | if (off > 4) | |
| 3543 | break; | |
| 468392fb AM |
3544 | } |
| 3545 | ||
| 3546 | if (resolv_vma) | |
| 3547 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3548 | |
| 066ee829 AM |
3549 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3550 | if (relplt != NULL) | |
| 3551 | { | |
| 3552 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3553 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3554 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3555 | |
| 066ee829 AM |
3556 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3557 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3558 | |
| 066ee829 AM |
3559 | p = relplt->relocation; |
| 3560 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3561 | { |
| 3562 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3563 | if (p->addend != 0) | |
| 3564 | size += sizeof ("+0x") - 1 + 16; | |
| 3565 | } | |
| 066ee829 | 3566 | } |
| 468392fb AM |
3567 | } |
| 3568 | ||
| c4b0b099 AM |
3569 | if (size == 0) |
| 3570 | goto free_contents_and_exit; | |
| 699733f6 AM |
3571 | s = *ret = bfd_malloc (size); |
| 3572 | if (s == NULL) | |
| c4b0b099 | 3573 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3574 | |
| 468392fb | 3575 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3576 | |
| 699733f6 | 3577 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3578 | { |
| 699733f6 | 3579 | bfd_vma ent; |
| 90e3cdf2 | 3580 | |
| 5ef11c02 AM |
3581 | if (syms[i]->value > opd->size - 8) |
| 3582 | continue; | |
| 3583 | ||
| 699733f6 AM |
3584 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3585 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3586 | { |
| c9727e01 | 3587 | long lo, hi; |
| 699733f6 | 3588 | size_t len; |
| c9727e01 | 3589 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3590 | |
| 699733f6 AM |
3591 | *s = *syms[i]; |
| 3592 | lo = codesecsym; | |
| 3593 | hi = codesecsymend; | |
| 3594 | while (lo < hi) | |
| 3595 | { | |
| c9727e01 | 3596 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3597 | if (syms[mid]->section->vma < ent) |
| 3598 | lo = mid + 1; | |
| 3599 | else if (syms[mid]->section->vma > ent) | |
| 3600 | hi = mid; | |
| 3601 | else | |
| c9727e01 AM |
3602 | { |
| 3603 | sec = syms[mid]->section; | |
| 3604 | break; | |
| 3605 | } | |
| 699733f6 AM |
3606 | } |
| 3607 | ||
| c9727e01 | 3608 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3609 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3610 | |
| 3611 | for (; sec != NULL; sec = sec->next) | |
| 3612 | { | |
| 3613 | if (sec->vma > ent) | |
| 3614 | break; | |
| 63524580 JK |
3615 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3616 | info file. */ | |
| 3617 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3618 | break; |
| 3619 | if ((sec->flags & SEC_CODE) != 0) | |
| 3620 | s->section = sec; | |
| 3621 | } | |
| 6ba2a415 | 3622 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3623 | s->value = ent - s->section->vma; |
| 3624 | s->name = names; | |
| 3625 | *names++ = '.'; | |
| 3626 | len = strlen (syms[i]->name); | |
| 3627 | memcpy (names, syms[i]->name, len + 1); | |
| 3628 | names += len + 1; | |
| 6f610d07 UW |
3629 | /* Have udata.p point back to the original symbol this |
| 3630 | synthetic symbol was derived from. */ | |
| 3631 | s->udata.p = syms[i]; | |
| 699733f6 | 3632 | s++; |
| 90e3cdf2 | 3633 | } |
| 90e3cdf2 | 3634 | } |
| 699733f6 | 3635 | free (contents); |
| 468392fb AM |
3636 | |
| 3637 | if (glink != NULL && relplt != NULL) | |
| 3638 | { | |
| 3639 | if (resolv_vma) | |
| 3640 | { | |
| 3641 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3642 | memset (s, 0, sizeof *s); |
| 468392fb | 3643 | s->the_bfd = abfd; |
| 6ba2a415 | 3644 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3645 | s->section = glink; |
| 3646 | s->value = resolv_vma - glink->vma; | |
| 3647 | s->name = names; | |
| 3648 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3649 | names += sizeof ("__glink_PLTresolve"); | |
| 3650 | s++; | |
| 3651 | count++; | |
| 3652 | } | |
| 3653 | ||
| 3654 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3655 | stub rather than on the glink branch table entry. The | |
| 3656 | objdump disassembler would then use a sensible symbol | |
| 3657 | name on plt calls. The difficulty in doing so is | |
| 3658 | a) finding the stubs, and, | |
| 3659 | b) matching stubs against plt entries, and, | |
| 3660 | c) there can be multiple stubs for a given plt entry. | |
| 3661 | ||
| 3662 | Solving (a) could be done by code scanning, but older | |
| 3663 | ppc64 binaries used different stubs to current code. | |
| 3664 | (b) is the tricky one since you need to known the toc | |
| 3665 | pointer for at least one function that uses a pic stub to | |
| 3666 | be able to calculate the plt address referenced. | |
| 3667 | (c) means gdb would need to set multiple breakpoints (or | |
| 3668 | find the glink branch itself) when setting breakpoints | |
| 3669 | for pending shared library loads. */ | |
| 3670 | p = relplt->relocation; | |
| 3671 | for (i = 0; i < plt_count; i++, p++) | |
| 3672 | { | |
| 3673 | size_t len; | |
| 3674 | ||
| 3675 | *s = **p->sym_ptr_ptr; | |
| 3676 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3677 | we are defining a symbol, ensure one of them is set. */ | |
| 3678 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3679 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3680 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3681 | s->section = glink; |
| 3682 | s->value = glink_vma - glink->vma; | |
| 3683 | s->name = names; | |
| 3684 | s->udata.p = NULL; | |
| 3685 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3686 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3687 | names += len; | |
| e054468f AM |
3688 | if (p->addend != 0) |
| 3689 | { | |
| 3690 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3691 | names += sizeof ("+0x") - 1; | |
| 3692 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3693 | names += strlen (names); | |
| 3694 | } | |
| 468392fb AM |
3695 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3696 | names += sizeof ("@plt"); | |
| 3697 | s++; | |
| b9e5796b AM |
3698 | if (abi < 2) |
| 3699 | { | |
| 3700 | glink_vma += 8; | |
| 3701 | if (i >= 0x8000) | |
| 3702 | glink_vma += 4; | |
| 3703 | } | |
| 3704 | else | |
| 468392fb AM |
3705 | glink_vma += 4; |
| 3706 | } | |
| 3707 | count += plt_count; | |
| 3708 | } | |
| 90e3cdf2 JJ |
3709 | } |
| 3710 | ||
| c9727e01 | 3711 | done: |
| a7535cf3 | 3712 | free (syms); |
| 90e3cdf2 JJ |
3713 | return count; |
| 3714 | } | |
| 5bd4f169 | 3715 | \f |
| 65f38f15 AM |
3716 | /* The following functions are specific to the ELF linker, while |
| 3717 | functions above are used generally. Those named ppc64_elf_* are | |
| 3718 | called by the main ELF linker code. They appear in this file more | |
| 3719 | or less in the order in which they are called. eg. | |
| 3720 | ppc64_elf_check_relocs is called early in the link process, | |
| 3721 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3722 | called. |
| 3723 | ||
| 3724 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3725 | functions have both a function code symbol and a function descriptor | |
| 3726 | symbol. A call to foo in a relocatable object file looks like: | |
| 3727 | ||
| 3728 | . .text | |
| 3729 | . x: | |
| 3730 | . bl .foo | |
| 3731 | . nop | |
| 3732 | ||
| 3733 | The function definition in another object file might be: | |
| 3734 | ||
| 3735 | . .section .opd | |
| 3736 | . foo: .quad .foo | |
| 3737 | . .quad .TOC.@tocbase | |
| 3738 | . .quad 0 | |
| 3739 | . | |
| 3740 | . .text | |
| 3741 | . .foo: blr | |
| 3742 | ||
| 3743 | When the linker resolves the call during a static link, the branch | |
| 3744 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3745 | If the function definition is in a shared library, things are a little | |
| 3746 | different: The call goes via a plt call stub, the opd information gets | |
| 3747 | copied to the plt, and the linker patches the nop. | |
| 3748 | ||
| 3749 | . x: | |
| 3750 | . bl .foo_stub | |
| 3751 | . ld 2,40(1) | |
| 3752 | . | |
| 3753 | . | |
| 3754 | . .foo_stub: | |
| 71a39c98 AM |
3755 | . std 2,40(1) # in practice, the call stub |
| 3756 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3757 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3758 | . ld 12,0(11) | |
| 3759 | . ld 2,8(11) | |
| 3760 | . mtctr 12 | |
| 3761 | . ld 11,16(11) | |
| e86ce104 AM |
3762 | . bctr |
| 3763 | . | |
| 3764 | . .section .plt | |
| 3765 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3766 | ||
| 3767 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3768 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3769 | copying. | |
| 3770 | ||
| 3771 | What are the difficulties here? Well, firstly, the relocations | |
| 3772 | examined by the linker in check_relocs are against the function code | |
| 3773 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3774 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3775 | to carefully copy dynamic link information from one symbol to the other. | |
| 3776 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3777 | symbol as is normal for most other backends. We need foo dynamic | |
| 3778 | instead, at least for an application final link. However, when | |
| 3779 | creating a shared library containing foo, we need to have both symbols | |
| 3780 | dynamic so that references to .foo are satisfied during the early | |
| 3781 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3782 | definition from some other object, eg. a static library. |
| 3783 | ||
| 3784 | Update: As of August 2004, we support a new convention. Function | |
| 3785 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3786 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3787 | |
| 7c8bbca5 AM |
3788 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3789 | function selects those that must be copied when linking a shared | |
| 3790 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3791 | |
| 1d483afe AM |
3792 | static int |
| 3793 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3794 | enum elf_ppc64_reloc_type r_type) | |
| 3795 | { | |
| 3796 | switch (r_type) | |
| 3797 | { | |
| 3798 | default: | |
| 7c8bbca5 AM |
3799 | /* Only relative relocs can be resolved when the object load |
| 3800 | address isn't fixed. DTPREL64 is excluded because the | |
| 3801 | dynamic linker needs to differentiate global dynamic from | |
| 3802 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3803 | return 1; |
| 3804 | ||
| 3805 | case R_PPC64_REL32: | |
| 3806 | case R_PPC64_REL64: | |
| 3807 | case R_PPC64_REL30: | |
| 3808 | return 0; | |
| 3809 | ||
| 3810 | case R_PPC64_TPREL16: | |
| 3811 | case R_PPC64_TPREL16_LO: | |
| 3812 | case R_PPC64_TPREL16_HI: | |
| 3813 | case R_PPC64_TPREL16_HA: | |
| 3814 | case R_PPC64_TPREL16_DS: | |
| 3815 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3816 | case R_PPC64_TPREL16_HIGH: |
| 3817 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3818 | case R_PPC64_TPREL16_HIGHER: |
| 3819 | case R_PPC64_TPREL16_HIGHERA: | |
| 3820 | case R_PPC64_TPREL16_HIGHEST: | |
| 3821 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3822 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3823 | /* These relocations are relative but in a shared library the |
| 3824 | linker doesn't know the thread pointer base. */ | |
| 3825 | return bfd_link_dll (info); | |
| 1d483afe AM |
3826 | } |
| 3827 | } | |
| 65f38f15 | 3828 | |
| 21d68fcd AM |
3829 | /* Whether an undefined weak symbol should resolve to its link-time |
| 3830 | value, even in PIC or PIE objects. */ | |
| 3831 | #define UNDEFWEAK_NO_DYNAMIC_RELOC(INFO, H) \ | |
| 3832 | ((H)->root.type == bfd_link_hash_undefweak \ | |
| 3833 | && (ELF_ST_VISIBILITY ((H)->other) != STV_DEFAULT \ | |
| 3834 | || (INFO)->dynamic_undefined_weak == 0)) | |
| 3835 | ||
| f4656909 AM |
3836 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3837 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3838 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3839 | shared lib. With code that gcc generates, it's vital that this be |
| 3840 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3841 | the address of a function descriptor, which resides in the .opd | |
| 3842 | section. gcc uses the descriptor directly rather than going via the | |
| 3843 | GOT as some other ABI's do, which means that initialized function | |
| 3844 | pointers must reference the descriptor. Thus, a function pointer | |
| 3845 | initialized to the address of a function in a shared library will | |
| 3846 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3847 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3848 | presents a problem as a plt entry for that function is also |
| 3849 | initialized from the function descriptor symbol and the copy reloc | |
| 3850 | may not be initialized first. */ | |
| a23b6845 | 3851 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3852 | |
| 721956f4 | 3853 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3854 | string. */ |
| 3855 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3856 | |
| 3857 | /* Linker stubs. | |
| 3858 | ppc_stub_long_branch: | |
| 3859 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3860 | destination, but a 24 bit branch in a stub section will reach. | |
| 3861 | . b dest | |
| 3862 | ||
| 3863 | ppc_stub_plt_branch: | |
| 3864 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3865 | reach its destination. | |
| 71a39c98 AM |
3866 | . addis %r11,%r2,xxx@toc@ha |
| 3867 | . ld %r12,xxx@toc@l(%r11) | |
| 3868 | . mtctr %r12 | |
| 721956f4 AM |
3869 | . bctr |
| 3870 | ||
| 3871 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3872 | Used to call a function in a shared library. If it so happens that |
| 3873 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3874 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3875 | . std %r2,40(%r1) |
| 71a39c98 AM |
3876 | . addis %r11,%r2,xxx@toc@ha |
| 3877 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3878 | . mtctr %r12 | |
| 3879 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3880 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3881 | . bctr |
| ad8e1ba5 AM |
3882 | |
| 3883 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3884 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3885 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3886 | . std %r2,40(%r1) | |
| 3887 | . addis %r2,%r2,off@ha | |
| 3888 | . addi %r2,%r2,off@l | |
| 3889 | . b dest | |
| 3890 | ||
| 3891 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3892 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3893 | . addis %r11,%r2,xxx@toc@ha |
| 3894 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3895 | . addis %r2,%r2,off@ha |
| 3896 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3897 | . mtctr %r12 |
| ad8e1ba5 | 3898 | . bctr |
| ac2df442 AM |
3899 | |
| 3900 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3901 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3902 | */ |
| 3903 | ||
| 3904 | enum ppc_stub_type { | |
| 3905 | ppc_stub_none, | |
| 3906 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3907 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3908 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3909 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3910 | ppc_stub_plt_call, |
| 7341d5e2 | 3911 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3912 | ppc_stub_global_entry, |
| 3913 | ppc_stub_save_res | |
| 721956f4 AM |
3914 | }; |
| 3915 | ||
| 6f20ed8a AM |
3916 | /* Information on stub grouping. */ |
| 3917 | struct map_stub | |
| 3918 | { | |
| 3919 | /* The stub section. */ | |
| 3920 | asection *stub_sec; | |
| 3921 | /* This is the section to which stubs in the group will be attached. */ | |
| 3922 | asection *link_sec; | |
| a4b6fadd AM |
3923 | /* Next group. */ |
| 3924 | struct map_stub *next; | |
| 3925 | /* Whether to emit a copy of register save/restore functions in this | |
| 3926 | group. */ | |
| 3927 | int needs_save_res; | |
| d4aaa2a0 AM |
3928 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 3929 | or -1u if no such stub with bctrl exists. */ | |
| 3930 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
3931 | }; |
| 3932 | ||
| 721956f4 AM |
3933 | struct ppc_stub_hash_entry { |
| 3934 | ||
| 3935 | /* Base hash table entry structure. */ | |
| 3936 | struct bfd_hash_entry root; | |
| 3937 | ||
| ad8e1ba5 AM |
3938 | enum ppc_stub_type stub_type; |
| 3939 | ||
| 6f20ed8a AM |
3940 | /* Group information. */ |
| 3941 | struct map_stub *group; | |
| 721956f4 AM |
3942 | |
| 3943 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3944 | bfd_vma stub_offset; | |
| 3945 | ||
| 3946 | /* Given the symbol's value and its section we can determine its final | |
| 3947 | value when building the stubs (so the stub knows where to jump. */ | |
| 3948 | bfd_vma target_value; | |
| 3949 | asection *target_section; | |
| 3950 | ||
| 721956f4 AM |
3951 | /* The symbol table entry, if any, that this was derived from. */ |
| 3952 | struct ppc_link_hash_entry *h; | |
| e054468f | 3953 | struct plt_entry *plt_ent; |
| 721956f4 | 3954 | |
| 6911b7dc AM |
3955 | /* Symbol st_other. */ |
| 3956 | unsigned char other; | |
| 721956f4 AM |
3957 | }; |
| 3958 | ||
| 3959 | struct ppc_branch_hash_entry { | |
| 3960 | ||
| 3961 | /* Base hash table entry structure. */ | |
| 3962 | struct bfd_hash_entry root; | |
| 3963 | ||
| c456f082 | 3964 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3965 | unsigned int offset; |
| 3966 | ||
| 3967 | /* Generation marker. */ | |
| 3968 | unsigned int iter; | |
| 3969 | }; | |
| 65f38f15 | 3970 | |
| 19e08130 AM |
3971 | /* Used to track dynamic relocations for local symbols. */ |
| 3972 | struct ppc_dyn_relocs | |
| 3973 | { | |
| 3974 | struct ppc_dyn_relocs *next; | |
| 3975 | ||
| 3976 | /* The input section of the reloc. */ | |
| 3977 | asection *sec; | |
| 3978 | ||
| 3979 | /* Total number of relocs copied for the input section. */ | |
| 3980 | unsigned int count : 31; | |
| 3981 | ||
| 3982 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3983 | unsigned int ifunc : 1; | |
| 3984 | }; | |
| 3985 | ||
| 65f38f15 AM |
3986 | struct ppc_link_hash_entry |
| 3987 | { | |
| 3988 | struct elf_link_hash_entry elf; | |
| 3989 | ||
| b3fac117 AM |
3990 | union { |
| 3991 | /* A pointer to the most recently used stub hash entry against this | |
| 3992 | symbol. */ | |
| 3993 | struct ppc_stub_hash_entry *stub_cache; | |
| 3994 | ||
| 3995 | /* A pointer to the next symbol starting with a '.' */ | |
| 3996 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3997 | } u; | |
| 721956f4 | 3998 | |
| 65f38f15 | 3999 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4000 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4001 | |
| d311bc8b AM |
4002 | /* Chain of aliases referring to a weakdef. */ |
| 4003 | struct ppc_link_hash_entry *weakref; | |
| 4004 | ||
| 721956f4 | 4005 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4006 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4007 | |
| e86ce104 AM |
4008 | /* Flag function code and descriptor symbols. */ |
| 4009 | unsigned int is_func:1; | |
| 4010 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4011 | unsigned int fake:1; |
| 411e1bfb | 4012 | |
| c5614fa4 AM |
4013 | /* Whether global opd/toc sym has been adjusted or not. |
| 4014 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4015 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4016 | unsigned int adjust_done:1; |
| 4017 | ||
| a4b6fadd AM |
4018 | /* Set if this is an out-of-line register save/restore function, |
| 4019 | with non-standard calling convention. */ | |
| 4020 | unsigned int save_res:1; | |
| 4021 | ||
| 8b5f1ed8 AM |
4022 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4023 | even when the duplicate symbol does not provide a definition. */ | |
| 4024 | unsigned int non_zero_localentry:1; | |
| 4025 | ||
| 411e1bfb | 4026 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
4027 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 4028 | corresponding relocs are encountered during check_relocs. | |
| 4029 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 4030 | indicate the corresponding GOT entry type is not needed. | |
| 4031 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 4032 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 4033 | just for convenience in distinguishing the two cases. */ | |
| 4034 | #define TLS_GD 1 /* GD reloc. */ | |
| 4035 | #define TLS_LD 2 /* LD reloc. */ | |
| 4036 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 4037 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4038 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4039 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4040 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4041 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4042 | unsigned char tls_mask; |
| 65f38f15 AM |
4043 | }; |
| 4044 | ||
| 4045 | /* ppc64 ELF linker hash table. */ | |
| 4046 | ||
| 4047 | struct ppc_link_hash_table | |
| 4048 | { | |
| 4049 | struct elf_link_hash_table elf; | |
| 4050 | ||
| 721956f4 AM |
4051 | /* The stub hash table. */ |
| 4052 | struct bfd_hash_table stub_hash_table; | |
| 4053 | ||
| 4054 | /* Another hash table for plt_branch stubs. */ | |
| 4055 | struct bfd_hash_table branch_hash_table; | |
| 4056 | ||
| 3b421ab3 AM |
4057 | /* Hash table for function prologue tocsave. */ |
| 4058 | htab_t tocsave_htab; | |
| 4059 | ||
| e7d1c40c AM |
4060 | /* Various options and other info passed from the linker. */ |
| 4061 | struct ppc64_elf_params *params; | |
| 721956f4 | 4062 | |
| 6f20ed8a AM |
4063 | /* The size of sec_info below. */ |
| 4064 | unsigned int sec_info_arr_size; | |
| 4065 | ||
| 4066 | /* Per-section array of extra section info. Done this way rather | |
| 4067 | than as part of ppc64_elf_section_data so we have the info for | |
| 4068 | non-ppc64 sections. */ | |
| 4069 | struct | |
| 4070 | { | |
| 4071 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4072 | bfd_vma toc_off; |
| 6f20ed8a AM |
4073 | |
| 4074 | union | |
| 4075 | { | |
| 4076 | /* The section group that this section belongs to. */ | |
| 4077 | struct map_stub *group; | |
| 4078 | /* A temp section list pointer. */ | |
| 4079 | asection *list; | |
| 4080 | } u; | |
| 4081 | } *sec_info; | |
| 721956f4 | 4082 | |
| a4b6fadd AM |
4083 | /* Linked list of groups. */ |
| 4084 | struct map_stub *group; | |
| 4085 | ||
| ad8e1ba5 AM |
4086 | /* Temp used when calculating TOC pointers. */ |
| 4087 | bfd_vma toc_curr; | |
| bf102f86 AM |
4088 | bfd *toc_bfd; |
| 4089 | asection *toc_first_sec; | |
| ad8e1ba5 | 4090 | |
| b3fac117 AM |
4091 | /* Used when adding symbols. */ |
| 4092 | struct ppc_link_hash_entry *dot_syms; | |
| 4093 | ||
| 33e44f2e | 4094 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4095 | asection *glink; |
| 82bd7b59 | 4096 | asection *sfpr; |
| 4ce794b7 AM |
4097 | asection *brlt; |
| 4098 | asection *relbrlt; | |
| 58d180e8 | 4099 | asection *glink_eh_frame; |
| ec338859 | 4100 | |
| 8387904d AM |
4101 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4102 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4103 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4104 | |
| 927be08e AM |
4105 | /* The size of reliplt used by got entry relocs. */ |
| 4106 | bfd_size_type got_reli_size; | |
| 4107 | ||
| 9b5ecbd0 | 4108 | /* Statistics. */ |
| 7341d5e2 | 4109 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4110 | |
| ee75fd95 AM |
4111 | /* Number of stubs against global syms. */ |
| 4112 | unsigned long stub_globals; | |
| 4113 | ||
| ee67d69a AM |
4114 | /* Set if we're linking code with function descriptors. */ |
| 4115 | unsigned int opd_abi:1; | |
| 4116 | ||
| 4c52953f | 4117 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4118 | unsigned int do_multi_toc:1; |
| 4c52953f | 4119 | unsigned int multi_toc_needed:1; |
| 927be08e | 4120 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4121 | unsigned int do_toc_opt:1; |
| 4c52953f | 4122 | |
| 5d1634d7 | 4123 | /* Set on error. */ |
| 99877b66 | 4124 | unsigned int stub_error:1; |
| 721956f4 | 4125 | |
| 8c5b4e52 AM |
4126 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4127 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4128 | |
| 82e66161 AM |
4129 | /* Whether there exist local gnu indirect function resolvers, |
| 4130 | referenced by dynamic relocations. */ | |
| 4131 | unsigned int local_ifunc_resolver:1; | |
| 4132 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4133 | ||
| f378ab09 AM |
4134 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4135 | unsigned int has_plt_localentry0:1; | |
| 4136 | ||
| 721956f4 AM |
4137 | /* Incremented every time we size stubs. */ |
| 4138 | unsigned int stub_iteration; | |
| 5d1634d7 | 4139 | |
| 87d72d41 AM |
4140 | /* Small local sym cache. */ |
| 4141 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4142 | }; |
| 4143 | ||
| 4c52953f AM |
4144 | /* Rename some of the generic section flags to better document how they |
| 4145 | are used here. */ | |
| b0dddeec AM |
4146 | |
| 4147 | /* Nonzero if this section has TLS related relocations. */ | |
| 4148 | #define has_tls_reloc sec_flg0 | |
| 4149 | ||
| 4150 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4151 | #define has_tls_get_addr_call sec_flg1 | |
| 4152 | ||
| 4153 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4154 | #define has_toc_reloc sec_flg2 | |
| 4155 | ||
| 4156 | /* Nonzero if this section has a call to another section that uses | |
| 4157 | the toc or got. */ | |
| d77c8a4b | 4158 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4159 | |
| 4160 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4161 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4162 | #define call_check_done sec_flg5 |
| 4c52953f | 4163 | |
| 65f38f15 AM |
4164 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4165 | ||
| 4166 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4167 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4168 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4169 | |
| 721956f4 AM |
4170 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4171 | ((struct ppc_stub_hash_entry *) \ | |
| 4172 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4173 | ||
| 4174 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4175 | ((struct ppc_branch_hash_entry *) \ | |
| 4176 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4177 | ||
| 4178 | /* Create an entry in the stub hash table. */ | |
| 4179 | ||
| 4180 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4181 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4182 | struct bfd_hash_table *table, | |
| 4183 | const char *string) | |
| 721956f4 AM |
4184 | { |
| 4185 | /* Allocate the structure if it has not already been allocated by a | |
| 4186 | subclass. */ | |
| 4187 | if (entry == NULL) | |
| 4188 | { | |
| 4189 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4190 | if (entry == NULL) | |
| 4191 | return entry; | |
| 4192 | } | |
| 4193 | ||
| 4194 | /* Call the allocation method of the superclass. */ | |
| 4195 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4196 | if (entry != NULL) | |
| 4197 | { | |
| 4198 | struct ppc_stub_hash_entry *eh; | |
| 4199 | ||
| 4200 | /* Initialize the local fields. */ | |
| 4201 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4202 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4203 | eh->group = NULL; |
| 721956f4 AM |
4204 | eh->stub_offset = 0; |
| 4205 | eh->target_value = 0; | |
| 4206 | eh->target_section = NULL; | |
| 721956f4 | 4207 | eh->h = NULL; |
| 6911b7dc | 4208 | eh->plt_ent = NULL; |
| 6911b7dc | 4209 | eh->other = 0; |
| 721956f4 AM |
4210 | } |
| 4211 | ||
| 4212 | return entry; | |
| 4213 | } | |
| 4214 | ||
| 4215 | /* Create an entry in the branch hash table. */ | |
| 4216 | ||
| 4217 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4218 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4219 | struct bfd_hash_table *table, | |
| 4220 | const char *string) | |
| 721956f4 AM |
4221 | { |
| 4222 | /* Allocate the structure if it has not already been allocated by a | |
| 4223 | subclass. */ | |
| 4224 | if (entry == NULL) | |
| 4225 | { | |
| 4226 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4227 | if (entry == NULL) | |
| 4228 | return entry; | |
| 4229 | } | |
| 4230 | ||
| 4231 | /* Call the allocation method of the superclass. */ | |
| 4232 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4233 | if (entry != NULL) | |
| 4234 | { | |
| 4235 | struct ppc_branch_hash_entry *eh; | |
| 4236 | ||
| 4237 | /* Initialize the local fields. */ | |
| 4238 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4239 | eh->offset = 0; | |
| 4240 | eh->iter = 0; | |
| 4241 | } | |
| 4242 | ||
| 4243 | return entry; | |
| 4244 | } | |
| 4245 | ||
| 65f38f15 AM |
4246 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4247 | ||
| 4248 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4249 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4250 | struct bfd_hash_table *table, | |
| 4251 | const char *string) | |
| 65f38f15 AM |
4252 | { |
| 4253 | /* Allocate the structure if it has not already been allocated by a | |
| 4254 | subclass. */ | |
| 4255 | if (entry == NULL) | |
| 4256 | { | |
| 4257 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4258 | if (entry == NULL) | |
| 4259 | return entry; | |
| 4260 | } | |
| 4261 | ||
| 4262 | /* Call the allocation method of the superclass. */ | |
| 4263 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4264 | if (entry != NULL) | |
| 4265 | { | |
| 4266 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4267 | ||
| b3fac117 | 4268 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4269 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4270 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4271 | ||
| 4272 | /* When making function calls, old ABI code references function entry | |
| 4273 | points (dot symbols), while new ABI code references the function | |
| 4274 | descriptor symbol. We need to make any combination of reference and | |
| 4275 | definition work together, without breaking archive linking. | |
| 4276 | ||
| 4277 | For a defined function "foo" and an undefined call to "bar": | |
| 4278 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4279 | "bar" too). | |
| 4280 | A new object defines "foo" and references "bar". | |
| 4281 | ||
| 4282 | A new object thus has no problem with its undefined symbols being | |
| 4283 | satisfied by definitions in an old object. On the other hand, the | |
| 4284 | old object won't have ".bar" satisfied by a new object. | |
| 4285 | ||
| 4286 | Keep a list of newly added dot-symbols. */ | |
| 4287 | ||
| 4288 | if (string[0] == '.') | |
| 4289 | { | |
| 4290 | struct ppc_link_hash_table *htab; | |
| 4291 | ||
| 4292 | htab = (struct ppc_link_hash_table *) table; | |
| 4293 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4294 | htab->dot_syms = eh; | |
| 4295 | } | |
| 65f38f15 AM |
4296 | } |
| 4297 | ||
| 4298 | return entry; | |
| 4299 | } | |
| 4300 | ||
| 3b421ab3 AM |
4301 | struct tocsave_entry { |
| 4302 | asection *sec; | |
| 4303 | bfd_vma offset; | |
| 4304 | }; | |
| 4305 | ||
| 4306 | static hashval_t | |
| 4307 | tocsave_htab_hash (const void *p) | |
| 4308 | { | |
| 4309 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4310 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4311 | } |
| 4312 | ||
| 4313 | static int | |
| 4314 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4315 | { | |
| 4316 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4317 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4318 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4319 | } | |
| 4320 | ||
| 68faa637 AM |
4321 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4322 | ||
| 4323 | static void | |
| d495ab0d | 4324 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4325 | { |
| d495ab0d | 4326 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4327 | |
| d495ab0d | 4328 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4329 | if (htab->tocsave_htab) |
| 4330 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4331 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4332 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4333 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4334 | } |
| 4335 | ||
| 65f38f15 AM |
4336 | /* Create a ppc64 ELF linker hash table. */ |
| 4337 | ||
| 4338 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4339 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4340 | { |
| 4341 | struct ppc_link_hash_table *htab; | |
| 4342 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4343 | ||
| 4ce794b7 | 4344 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4345 | if (htab == NULL) |
| 4346 | return NULL; | |
| 4347 | ||
| 66eb6687 | 4348 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4349 | sizeof (struct ppc_link_hash_entry), |
| 4350 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4351 | { |
| e2d34d7d | 4352 | free (htab); |
| 65f38f15 AM |
4353 | return NULL; |
| 4354 | } | |
| 4355 | ||
| 721956f4 | 4356 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4357 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4358 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4359 | { |
| d495ab0d | 4360 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4361 | return NULL; |
| 4362 | } | |
| 721956f4 AM |
4363 | |
| 4364 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4365 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4366 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4367 | { |
| 4368 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4369 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4370 | return NULL; |
| 4371 | } | |
| 721956f4 | 4372 | |
| 3b421ab3 AM |
4373 | htab->tocsave_htab = htab_try_create (1024, |
| 4374 | tocsave_htab_hash, | |
| 4375 | tocsave_htab_eq, | |
| 4376 | NULL); | |
| 4377 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4378 | { |
| d495ab0d | 4379 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4380 | return NULL; |
| 4381 | } | |
| d495ab0d | 4382 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4383 | |
| 3254fd24 AM |
4384 | /* Initializing two fields of the union is just cosmetic. We really |
| 4385 | only care about glist, but when compiled on a 32-bit host the | |
| 4386 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4387 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4388 | htab->elf.init_got_refcount.refcount = 0; |
| 4389 | htab->elf.init_got_refcount.glist = NULL; | |
| 4390 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4391 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4392 | htab->elf.init_got_offset.offset = 0; | |
| 4393 | htab->elf.init_got_offset.glist = NULL; | |
| 4394 | htab->elf.init_plt_offset.offset = 0; | |
| 4395 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4396 | |
| 65f38f15 AM |
4397 | return &htab->elf.root; |
| 4398 | } | |
| 4399 | ||
| bfeb4a28 AM |
4400 | /* Create sections for linker generated code. */ |
| 4401 | ||
| 4402 | static bfd_boolean | |
| 4403 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4404 | { | |
| 4405 | struct ppc_link_hash_table *htab; | |
| 4406 | flagword flags; | |
| 4407 | ||
| 4408 | htab = ppc_hash_table (info); | |
| 4409 | ||
| bfeb4a28 AM |
4410 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4411 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4412 | if (htab->params->save_restore_funcs) |
| 4413 | { | |
| 4414 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4415 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4416 | flags); | |
| 4417 | if (htab->sfpr == NULL | |
| 4418 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4419 | return FALSE; | |
| 4420 | } | |
| 4421 | ||
| 4422 | if (bfd_link_relocatable (info)) | |
| 4423 | return TRUE; | |
| bfeb4a28 AM |
4424 | |
| 4425 | /* Create .glink for lazy dynamic linking support. */ | |
| 4426 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4427 | flags); | |
| 4428 | if (htab->glink == NULL | |
| 4429 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4430 | return FALSE; | |
| 4431 | ||
| 4432 | if (!info->no_ld_generated_unwind_info) | |
| 4433 | { | |
| 4434 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4435 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4436 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4437 | ".eh_frame", | |
| 4438 | flags); | |
| 4439 | if (htab->glink_eh_frame == NULL | |
| 4440 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4441 | return FALSE; | |
| 4442 | } | |
| 4443 | ||
| 4444 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4445 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4446 | if (htab->elf.iplt == NULL | |
| 4447 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4448 | return FALSE; |
| 4449 | ||
| 4450 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4451 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4452 | htab->elf.irelplt |
| 4453 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4454 | if (htab->elf.irelplt == NULL | |
| 4455 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4456 | return FALSE; |
| 4457 | ||
| 4458 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4459 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4460 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4461 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4462 | flags); | |
| 4463 | if (htab->brlt == NULL | |
| 4464 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4465 | return FALSE; | |
| 4466 | ||
| 0e1862bb | 4467 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4468 | return TRUE; |
| 4469 | ||
| 4470 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4471 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4472 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4473 | ".rela.branch_lt", | |
| 4474 | flags); | |
| 4475 | if (htab->relbrlt == NULL | |
| 4476 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4477 | return FALSE; | |
| 4478 | ||
| 4479 | return TRUE; | |
| 4480 | } | |
| 4481 | ||
| e717da7e AM |
4482 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4483 | ||
| bfeb4a28 | 4484 | bfd_boolean |
| e7d1c40c AM |
4485 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4486 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4487 | { |
| 4488 | struct ppc_link_hash_table *htab; | |
| 4489 | ||
| e7d1c40c | 4490 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4491 | |
| 4492 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4493 | linker created stub bfd. This ensures that the GOT header is at | |
| 4494 | the start of the output TOC section. */ | |
| 4495 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4496 | htab->elf.dynobj = params->stub_bfd; |
| 4497 | htab->params = params; | |
| bfeb4a28 | 4498 | |
| bfeb4a28 | 4499 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4500 | } |
| 4501 | ||
| 721956f4 AM |
4502 | /* Build a name for an entry in the stub hash table. */ |
| 4503 | ||
| 4504 | static char * | |
| 4ce794b7 AM |
4505 | ppc_stub_name (const asection *input_section, |
| 4506 | const asection *sym_sec, | |
| 4507 | const struct ppc_link_hash_entry *h, | |
| 4508 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4509 | { |
| 4510 | char *stub_name; | |
| bcaa2f82 | 4511 | ssize_t len; |
| 721956f4 AM |
4512 | |
| 4513 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4514 | offsets from a sym as a branch target? In fact, we could | |
| 4515 | probably assume the addend is always zero. */ | |
| 4516 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4517 | ||
| 4518 | if (h) | |
| 4519 | { | |
| 4520 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4521 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4522 | if (stub_name == NULL) |
| 4523 | return stub_name; | |
| 4524 | ||
| bcaa2f82 AM |
4525 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4526 | input_section->id & 0xffffffff, | |
| 4527 | h->elf.root.root.string, | |
| 4528 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4529 | } |
| 4530 | else | |
| 4531 | { | |
| ad8e1ba5 | 4532 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4533 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4534 | if (stub_name == NULL) |
| 4535 | return stub_name; | |
| 4536 | ||
| bcaa2f82 AM |
4537 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4538 | input_section->id & 0xffffffff, | |
| 4539 | sym_sec->id & 0xffffffff, | |
| 4540 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4541 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4542 | } |
| bcaa2f82 | 4543 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4544 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4545 | return stub_name; |
| 4546 | } | |
| 4547 | ||
| 4548 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4549 | creating the stub name takes a bit of time. */ | |
| 4550 | ||
| 4551 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4552 | ppc_get_stub_entry (const asection *input_section, |
| 4553 | const asection *sym_sec, | |
| 039b3fef | 4554 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4555 | const Elf_Internal_Rela *rel, |
| 4556 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4557 | { |
| 4558 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4559 | struct map_stub *group; |
| 721956f4 AM |
4560 | |
| 4561 | /* If this input section is part of a group of sections sharing one | |
| 4562 | stub section, then use the id of the first section in the group. | |
| 4563 | Stub names need to include a section id, as there may well be | |
| 4564 | more than one stub used to reach say, printf, and we need to | |
| 4565 | distinguish between them. */ | |
| 6f20ed8a | 4566 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4567 | if (group == NULL) |
| 4568 | return NULL; | |
| 721956f4 | 4569 | |
| b3fac117 AM |
4570 | if (h != NULL && h->u.stub_cache != NULL |
| 4571 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4572 | && h->u.stub_cache->group == group) |
| 721956f4 | 4573 | { |
| b3fac117 | 4574 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4575 | } |
| 4576 | else | |
| 4577 | { | |
| 4578 | char *stub_name; | |
| 4579 | ||
| 6f20ed8a | 4580 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4581 | if (stub_name == NULL) |
| 4582 | return NULL; | |
| 4583 | ||
| 4584 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4585 | stub_name, FALSE, FALSE); |
| 721956f4 | 4586 | if (h != NULL) |
| b3fac117 | 4587 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4588 | |
| 4589 | free (stub_name); | |
| 4590 | } | |
| 4591 | ||
| 4592 | return stub_entry; | |
| 4593 | } | |
| 4594 | ||
| 4595 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4596 | stub entry are initialised. */ | |
| 4597 | ||
| 4598 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4599 | ppc_add_stub (const char *stub_name, |
| 4600 | asection *section, | |
| 25f53a85 | 4601 | struct bfd_link_info *info) |
| 721956f4 | 4602 | { |
| 25f53a85 | 4603 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4604 | struct map_stub *group; |
| 721956f4 AM |
4605 | asection *link_sec; |
| 4606 | asection *stub_sec; | |
| 4607 | struct ppc_stub_hash_entry *stub_entry; | |
| 4608 | ||
| 6f20ed8a AM |
4609 | group = htab->sec_info[section->id].u.group; |
| 4610 | link_sec = group->link_sec; | |
| 4611 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4612 | if (stub_sec == NULL) |
| 4613 | { | |
| 6f20ed8a AM |
4614 | size_t namelen; |
| 4615 | bfd_size_type len; | |
| 4616 | char *s_name; | |
| 721956f4 | 4617 | |
| 6f20ed8a AM |
4618 | namelen = strlen (link_sec->name); |
| 4619 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4620 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4621 | if (s_name == NULL) | |
| 4622 | return NULL; | |
| 721956f4 | 4623 | |
| 6f20ed8a AM |
4624 | memcpy (s_name, link_sec->name, namelen); |
| 4625 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4626 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4627 | if (stub_sec == NULL) | |
| 4628 | return NULL; | |
| 4629 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4630 | } |
| 4631 | ||
| 4632 | /* Enter this entry into the linker stub hash table. */ | |
| 4633 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4634 | TRUE, FALSE); |
| 721956f4 AM |
4635 | if (stub_entry == NULL) |
| 4636 | { | |
| 695344c0 | 4637 | /* xgettext:c-format */ |
| 8de848d8 | 4638 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4639 | section->owner, stub_name); |
| 721956f4 AM |
4640 | return NULL; |
| 4641 | } | |
| 4642 | ||
| 6f20ed8a | 4643 | stub_entry->group = group; |
| 721956f4 | 4644 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4645 | return stub_entry; |
| 4646 | } | |
| 4647 | ||
| e717da7e AM |
4648 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4649 | not already done. */ | |
| 65f38f15 | 4650 | |
| b34976b6 | 4651 | static bfd_boolean |
| e717da7e | 4652 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4653 | { |
| e717da7e AM |
4654 | asection *got, *relgot; |
| 4655 | flagword flags; | |
| 4656 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4657 | |
| 0c8d6e5c | 4658 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4659 | return FALSE; |
| 4dfe6ac6 NC |
4660 | if (htab == NULL) |
| 4661 | return FALSE; | |
| 0ffa91dd | 4662 | |
| 33e44f2e AM |
4663 | if (!htab->elf.sgot |
| 4664 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4665 | return FALSE; | |
| e717da7e AM |
4666 | |
| 4667 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4668 | | SEC_LINKER_CREATED); | |
| 4669 | ||
| c456f082 | 4670 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4671 | if (!got |
| e717da7e AM |
4672 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4673 | return FALSE; | |
| 65f38f15 | 4674 | |
| c456f082 AM |
4675 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4676 | flags | SEC_READONLY); | |
| e717da7e | 4677 | if (!relgot |
| e717da7e | 4678 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4679 | return FALSE; |
| e717da7e AM |
4680 | |
| 4681 | ppc64_elf_tdata (abfd)->got = got; | |
| 4682 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4683 | return TRUE; |
| 65f38f15 | 4684 | } |
| 5bd4f169 | 4685 | |
| b31867b6 AM |
4686 | /* Follow indirect and warning symbol links. */ |
| 4687 | ||
| 4688 | static inline struct bfd_link_hash_entry * | |
| 4689 | follow_link (struct bfd_link_hash_entry *h) | |
| 4690 | { | |
| 4691 | while (h->type == bfd_link_hash_indirect | |
| 4692 | || h->type == bfd_link_hash_warning) | |
| 4693 | h = h->u.i.link; | |
| 4694 | return h; | |
| 4695 | } | |
| 4696 | ||
| 4697 | static inline struct elf_link_hash_entry * | |
| 4698 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4699 | { | |
| 4700 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4701 | } | |
| 4702 | ||
| 4703 | static inline struct ppc_link_hash_entry * | |
| 4704 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4705 | { | |
| 4706 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4707 | } | |
| 4708 | ||
| 40d16e0b AM |
4709 | /* Merge PLT info on FROM with that on TO. */ |
| 4710 | ||
| 4711 | static void | |
| 4712 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4713 | struct ppc_link_hash_entry *to) | |
| 4714 | { | |
| 4715 | if (from->elf.plt.plist != NULL) | |
| 4716 | { | |
| 4717 | if (to->elf.plt.plist != NULL) | |
| 4718 | { | |
| 4719 | struct plt_entry **entp; | |
| 4720 | struct plt_entry *ent; | |
| 4721 | ||
| 4722 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4723 | { | |
| 4724 | struct plt_entry *dent; | |
| 4725 | ||
| 4726 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4727 | if (dent->addend == ent->addend) | |
| 4728 | { | |
| 4729 | dent->plt.refcount += ent->plt.refcount; | |
| 4730 | *entp = ent->next; | |
| 4731 | break; | |
| 4732 | } | |
| 4733 | if (dent == NULL) | |
| 4734 | entp = &ent->next; | |
| 4735 | } | |
| 4736 | *entp = to->elf.plt.plist; | |
| 4737 | } | |
| 4738 | ||
| 4739 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4740 | from->elf.plt.plist = NULL; | |
| 4741 | } | |
| 4742 | } | |
| 4743 | ||
| 65f38f15 AM |
4744 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4745 | ||
| 4746 | static void | |
| fcfa13d2 AM |
4747 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4748 | struct elf_link_hash_entry *dir, | |
| 4749 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4750 | { |
| 4751 | struct ppc_link_hash_entry *edir, *eind; | |
| 4752 | ||
| 4753 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4754 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4755 | ||
| c79d6685 AM |
4756 | edir->is_func |= eind->is_func; |
| 4757 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4758 | edir->tls_mask |= eind->tls_mask; | |
| 4759 | if (eind->oh != NULL) | |
| 4760 | edir->oh = ppc_follow_link (eind->oh); | |
| 4761 | ||
| e81830c5 AM |
4762 | /* If called to transfer flags for a weakdef during processing |
| 4763 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4764 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4765 | if (!(ELIMINATE_COPY_RELOCS | |
| 4766 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4767 | && edir->elf.dynamic_adjusted)) | |
| 4768 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4769 | ||
| 474436e6 | 4770 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4771 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4772 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4773 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4774 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4775 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4776 | |
| d311bc8b AM |
4777 | /* If we were called to copy over info for a weak sym, don't copy |
| 4778 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4779 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4780 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4781 | tests about a specific symbol, or affect other symbol flags which | |
| 4782 | are then tested. | |
| 4783 | Chain weakdefs so we can get from the weakdef back to an alias. | |
| 4784 | The list is circular so that we don't need to use u.weakdef as | |
| 4785 | well as this list to look at all aliases. */ | |
| 4786 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4787 | { | |
| 4788 | struct ppc_link_hash_entry *cur, *add, *next; | |
| 4789 | ||
| 4790 | add = eind; | |
| 4791 | do | |
| 4792 | { | |
| 4793 | cur = edir->weakref; | |
| 4794 | if (cur != NULL) | |
| 4795 | { | |
| 4796 | do | |
| 4797 | { | |
| 4798 | /* We can be called twice for the same symbols. | |
| 4799 | Don't make multiple loops. */ | |
| 4800 | if (cur == add) | |
| 4801 | return; | |
| 4802 | cur = cur->weakref; | |
| 4803 | } while (cur != edir); | |
| 4804 | } | |
| 4805 | next = add->weakref; | |
| 4806 | if (cur != add) | |
| 4807 | { | |
| 4808 | add->weakref = edir->weakref != NULL ? edir->weakref : edir; | |
| 4809 | edir->weakref = add; | |
| 4810 | } | |
| 4811 | add = next; | |
| 4812 | } while (add != NULL && add != eind); | |
| 4813 | return; | |
| 4814 | } | |
| 4815 | ||
| 411e1bfb | 4816 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4817 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4818 | { |
| bbd7ec4a AM |
4819 | if (edir->dyn_relocs != NULL) |
| 4820 | { | |
| 6061a67d AM |
4821 | struct elf_dyn_relocs **pp; |
| 4822 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4823 | |
| fcfa13d2 | 4824 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4825 | list. Merge any entries against the same section. */ |
| 4826 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4827 | { | |
| 6061a67d | 4828 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4829 | |
| 4830 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4831 | if (q->sec == p->sec) | |
| 4832 | { | |
| 4833 | q->pc_count += p->pc_count; | |
| 4834 | q->count += p->count; | |
| 4835 | *pp = p->next; | |
| 4836 | break; | |
| 4837 | } | |
| 4838 | if (q == NULL) | |
| 4839 | pp = &p->next; | |
| 4840 | } | |
| 4841 | *pp = edir->dyn_relocs; | |
| 4842 | } | |
| 4843 | ||
| 65f38f15 AM |
4844 | edir->dyn_relocs = eind->dyn_relocs; |
| 4845 | eind->dyn_relocs = NULL; | |
| 4846 | } | |
| 65f38f15 | 4847 | |
| 81848ca0 AM |
4848 | /* Copy over got entries that we may have already seen to the |
| 4849 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4850 | if (eind->elf.got.glist != NULL) |
| 4851 | { | |
| 4852 | if (edir->elf.got.glist != NULL) | |
| 4853 | { | |
| 4854 | struct got_entry **entp; | |
| 4855 | struct got_entry *ent; | |
| 4856 | ||
| 4857 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4858 | { | |
| 4859 | struct got_entry *dent; | |
| 4860 | ||
| 4861 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4862 | if (dent->addend == ent->addend | |
| e717da7e | 4863 | && dent->owner == ent->owner |
| 411e1bfb AM |
4864 | && dent->tls_type == ent->tls_type) |
| 4865 | { | |
| 4866 | dent->got.refcount += ent->got.refcount; | |
| 4867 | *entp = ent->next; | |
| 4868 | break; | |
| 4869 | } | |
| 4870 | if (dent == NULL) | |
| 4871 | entp = &ent->next; | |
| 4872 | } | |
| 4873 | *entp = edir->elf.got.glist; | |
| 4874 | } | |
| 4875 | ||
| 4876 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4877 | eind->elf.got.glist = NULL; | |
| 4878 | } | |
| 4879 | ||
| 4880 | /* And plt entries. */ | |
| 40d16e0b | 4881 | move_plt_plist (eind, edir); |
| 411e1bfb | 4882 | |
| fcfa13d2 | 4883 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4884 | { |
| fcfa13d2 AM |
4885 | if (edir->elf.dynindx != -1) |
| 4886 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4887 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4888 | edir->elf.dynindx = eind->elf.dynindx; |
| 4889 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4890 | eind->elf.dynindx = -1; | |
| 4891 | eind->elf.dynstr_index = 0; | |
| 4892 | } | |
| 411e1bfb AM |
4893 | } |
| 4894 | ||
| 8387904d AM |
4895 | /* Find the function descriptor hash entry from the given function code |
| 4896 | hash entry FH. Link the entries via their OH fields. */ | |
| 4897 | ||
| 4898 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4899 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4900 | { |
| 4901 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4902 | ||
| 4903 | if (fdh == NULL) | |
| 4904 | { | |
| 4905 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4906 | ||
| 4907 | fdh = (struct ppc_link_hash_entry *) | |
| 4908 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4909 | if (fdh == NULL) |
| 4910 | return fdh; | |
| 4911 | ||
| 4912 | fdh->is_func_descriptor = 1; | |
| 4913 | fdh->oh = fh; | |
| 4914 | fh->is_func = 1; | |
| 4915 | fh->oh = fdh; | |
| 8387904d AM |
4916 | } |
| 4917 | ||
| 8c5b4e52 AM |
4918 | fdh = ppc_follow_link (fdh); |
| 4919 | fdh->is_func_descriptor = 1; | |
| 4920 | fdh->oh = fh; | |
| 4921 | return fdh; | |
| 8387904d AM |
4922 | } |
| 4923 | ||
| 8c5b4e52 | 4924 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4925 | |
| 4926 | static struct ppc_link_hash_entry * | |
| 4927 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4928 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4929 | { |
| 8c5b4e52 AM |
4930 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4931 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4932 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4933 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4934 | ? BSF_WEAK | |
| 4935 | : BSF_GLOBAL); | |
| 4936 | ||
| 4937 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4938 | fh->elf.root.root.string + 1, | |
| 4939 | flags, bfd_und_section_ptr, 0, | |
| 4940 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4941 | return NULL; |
| 4942 | ||
| 4943 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4944 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4945 | fdh->fake = 1; |
| 4946 | fdh->is_func_descriptor = 1; | |
| 4947 | fdh->oh = fh; | |
| 4948 | fh->is_func = 1; | |
| 4949 | fh->oh = fdh; | |
| bb700d78 AM |
4950 | return fdh; |
| 4951 | } | |
| 4952 | ||
| 8387904d AM |
4953 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4954 | function type. */ | |
| 555cd476 AM |
4955 | |
| 4956 | static bfd_boolean | |
| c16153ae | 4957 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4958 | struct bfd_link_info *info, |
| 555cd476 | 4959 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4960 | const char **name, |
| 555cd476 AM |
4961 | flagword *flags ATTRIBUTE_UNUSED, |
| 4962 | asection **sec, | |
| b53dfeb2 | 4963 | bfd_vma *value) |
| 555cd476 | 4964 | { |
| a43942db | 4965 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4966 | && (ibfd->flags & DYNAMIC) == 0 |
| 4967 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4968 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4969 | |
| b53dfeb2 | 4970 | if (*sec != NULL |
| f1885d1e | 4971 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4972 | { |
| 4973 | asection *code_sec; | |
| 4974 | ||
| 4975 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4976 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4977 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4978 | ||
| 4979 | /* If the symbol is a function defined in .opd, and the function | |
| 4980 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4981 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4982 | && (*sec)->reloc_count != 0 |
| 4983 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4984 | FALSE) != (bfd_vma) -1 | |
| 4985 | && discarded_section (code_sec)) | |
| 4986 | { | |
| 4987 | *sec = bfd_und_section_ptr; | |
| 4988 | isym->st_shndx = SHN_UNDEF; | |
| 4989 | } | |
| 4990 | } | |
| dbd1e97e AM |
4991 | else if (*sec != NULL |
| 4992 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4993 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4994 | { | |
| 4995 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4996 | if (htab != NULL) | |
| 4997 | htab->params->object_in_toc = 1; | |
| 4998 | } | |
| 433817dd | 4999 | |
| 6911b7dc AM |
5000 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5001 | { | |
| 5002 | if (abiversion (ibfd) == 0) | |
| 5003 | set_abiversion (ibfd, 2); | |
| 5004 | else if (abiversion (ibfd) == 1) | |
| 5005 | { | |
| 5006 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 5007 | " for ABI version 1\n"), name); | |
| 5008 | bfd_set_error (bfd_error_bad_value); | |
| 5009 | return FALSE; | |
| 5010 | } | |
| 5011 | } | |
| 5012 | ||
| 555cd476 AM |
5013 | return TRUE; |
| 5014 | } | |
| 5015 | ||
| 6911b7dc AM |
5016 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 5017 | ||
| 5018 | static void | |
| 5019 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5020 | const Elf_Internal_Sym *isym, | |
| 5021 | bfd_boolean definition, | |
| 5022 | bfd_boolean dynamic) | |
| 5023 | { | |
| f378ab09 | 5024 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5025 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5026 | | ELF_ST_VISIBILITY (h->other)); | |
| 5027 | } | |
| 5028 | ||
| 8c5b4e52 AM |
5029 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5030 | we now have a real symbol. */ | |
| 5031 | ||
| 5032 | static bfd_boolean | |
| 5033 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5034 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5035 | asection **psec ATTRIBUTE_UNUSED, |
| 5036 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5037 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5038 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5039 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5040 | { | |
| 5041 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5042 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5043 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5044 | return TRUE; |
| 5045 | } | |
| 5046 | ||
| 8387904d | 5047 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5048 | inclusion of a new ABI object archive that defines "bar". |
| 5049 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5050 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5051 | |
| 5052 | static struct elf_link_hash_entry * | |
| 5053 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5054 | struct bfd_link_info *info, | |
| 5055 | const char *name) | |
| 5056 | { | |
| 5057 | struct elf_link_hash_entry *h; | |
| 5058 | char *dot_name; | |
| 5059 | size_t len; | |
| 5060 | ||
| 5061 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5062 | if (h != NULL |
| 5063 | /* Don't return this sym if it is a fake function descriptor | |
| 5064 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5065 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5066 | return h; |
| 5067 | ||
| 5068 | if (name[0] == '.') | |
| 5069 | return h; | |
| 5070 | ||
| 5071 | len = strlen (name); | |
| 5072 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5073 | if (dot_name == NULL) | |
| 5074 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 5075 | dot_name[0] = '.'; | |
| 5076 | memcpy (dot_name + 1, name, len + 1); | |
| 5077 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5078 | bfd_release (abfd, dot_name); | |
| 5079 | return h; | |
| 5080 | } | |
| 5081 | ||
| 5082 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5083 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5084 | are made weak. This stops later archive searches from including an | |
| 5085 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5086 | prevents the linker complaining about undefined symbols. |
| 5087 | We also check and correct mismatched symbol visibility here. The | |
| 5088 | most restrictive visibility of the function descriptor and the | |
| 5089 | function entry symbol is used. */ | |
| 8387904d AM |
5090 | |
| 5091 | static bfd_boolean | |
| b3fac117 | 5092 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5093 | { |
| 8387904d AM |
5094 | struct ppc_link_hash_table *htab; |
| 5095 | struct ppc_link_hash_entry *fdh; | |
| 5096 | ||
| b3fac117 AM |
5097 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5098 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5099 | |
| 8400d40d AM |
5100 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5101 | return TRUE; | |
| 5102 | ||
| b3fac117 AM |
5103 | if (eh->elf.root.root.string[0] != '.') |
| 5104 | abort (); | |
| 8387904d | 5105 | |
| b3fac117 | 5106 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5107 | if (htab == NULL) |
| 5108 | return FALSE; | |
| 5109 | ||
| b31867b6 | 5110 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5111 | if (fdh == NULL |
| 5112 | && !bfd_link_relocatable (info) | |
| 5113 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5114 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5115 | && eh->elf.ref_regular) | |
| 5116 | { | |
| 5117 | /* Make an undefined function descriptor sym, in order to | |
| 5118 | pull in an --as-needed shared lib. Archives are handled | |
| 5119 | elsewhere. */ | |
| 5120 | fdh = make_fdh (info, eh); | |
| 5121 | if (fdh == NULL) | |
| 5122 | return FALSE; | |
| bb700d78 | 5123 | } |
| 8c5b4e52 AM |
5124 | |
| 5125 | if (fdh != NULL) | |
| 8387904d | 5126 | { |
| 35b0ce59 AM |
5127 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5128 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5129 | |
| 5130 | /* Make both descriptor and entry symbol have the most | |
| 5131 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5132 | if (entry_vis < descr_vis) |
| 5133 | fdh->elf.other += entry_vis - descr_vis; | |
| 5134 | else if (entry_vis > descr_vis) | |
| 5135 | eh->elf.other += descr_vis - entry_vis; | |
| 5136 | ||
| 8c5b4e52 AM |
5137 | /* Propagate reference flags from entry symbol to function |
| 5138 | descriptor symbol. */ | |
| bc4e12de | 5139 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5140 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5141 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5142 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5143 | ||
| 5144 | if (!fdh->elf.forced_local | |
| 5145 | && fdh->elf.dynindx == -1 | |
| 5146 | && fdh->elf.versioned != versioned_hidden | |
| 5147 | && (bfd_link_dll (info) | |
| 5148 | || fdh->elf.def_dynamic | |
| 5149 | || fdh->elf.ref_dynamic) | |
| 5150 | && (eh->elf.ref_regular | |
| 5151 | || eh->elf.def_regular)) | |
| 5152 | { | |
| 5153 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5154 | return FALSE; | |
| 35b0ce59 | 5155 | } |
| 8387904d | 5156 | } |
| 99877b66 | 5157 | |
| 8387904d AM |
5158 | return TRUE; |
| 5159 | } | |
| 5160 | ||
| f6c7c3e8 AM |
5161 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5162 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5163 | |
| 8387904d | 5164 | static bfd_boolean |
| f6c7c3e8 | 5165 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5166 | { |
| 99877b66 | 5167 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5168 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5169 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5170 | |
| 459609d6 | 5171 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5172 | { |
| 459609d6 AM |
5173 | if (abiversion (ibfd) == 0) |
| 5174 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5175 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5176 | { |
| 695344c0 | 5177 | /* xgettext:c-format */ |
| 459609d6 AM |
5178 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5179 | " version %d\n"), | |
| 5180 | ibfd, abiversion (ibfd)); | |
| 5181 | bfd_set_error (bfd_error_bad_value); | |
| 5182 | return FALSE; | |
| f6c7c3e8 AM |
5183 | } |
| 5184 | ||
| 459609d6 AM |
5185 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5186 | && (opd->flags & SEC_RELOC) != 0 | |
| 5187 | && opd->reloc_count != 0 | |
| 5188 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5189 | { |
| 459609d6 AM |
5190 | /* Garbage collection needs some extra help with .opd sections. |
| 5191 | We don't want to necessarily keep everything referenced by | |
| 5192 | relocs in .opd, as that would keep all functions. Instead, | |
| 5193 | if we reference an .opd symbol (a function descriptor), we | |
| 5194 | want to keep the function code symbol's section. This is | |
| 5195 | easy for global symbols, but for local syms we need to keep | |
| 5196 | information about the associated function section. */ | |
| 5197 | bfd_size_type amt; | |
| 5198 | asection **opd_sym_map; | |
| 5199 | ||
| 51aecdc5 | 5200 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5201 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5202 | if (opd_sym_map == NULL) | |
| b3fac117 | 5203 | return FALSE; |
| 459609d6 AM |
5204 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5205 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5206 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5207 | } |
| 5208 | } | |
| 5209 | ||
| 459609d6 AM |
5210 | if (!is_ppc64_elf (info->output_bfd)) |
| 5211 | return TRUE; | |
| 5212 | htab = ppc_hash_table (info); | |
| 5213 | if (htab == NULL) | |
| 5214 | return FALSE; | |
| 5215 | ||
| 5216 | /* For input files without an explicit abiversion in e_flags | |
| 5217 | we should have flagged any with symbol st_other bits set | |
| 5218 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5219 | Set the output abiversion if not yet set, and for any input | |
| 5220 | still ambiguous, take its abiversion from the output. | |
| 5221 | Differences in ABI are reported later. */ | |
| 5222 | if (abiversion (info->output_bfd) == 0) | |
| 5223 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5224 | else if (abiversion (ibfd) == 0) | |
| 5225 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5226 | ||
| 5227 | p = &htab->dot_syms; | |
| 5228 | while ((eh = *p) != NULL) | |
| 5229 | { | |
| 5230 | *p = NULL; | |
| 5231 | if (&eh->elf == htab->elf.hgot) | |
| 5232 | ; | |
| 5233 | else if (htab->elf.hgot == NULL | |
| 5234 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5235 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5236 | else if (abiversion (ibfd) <= 1) |
| 5237 | { | |
| 5238 | htab->need_func_desc_adj = 1; | |
| 5239 | if (!add_symbol_adjust (eh, info)) | |
| 5240 | return FALSE; | |
| 5241 | } | |
| 459609d6 AM |
5242 | p = &eh->u.next_dot_sym; |
| 5243 | } | |
| b3fac117 | 5244 | return TRUE; |
| 8387904d AM |
5245 | } |
| 5246 | ||
| 97fed1c9 JJ |
5247 | /* Undo hash table changes when an --as-needed input file is determined |
| 5248 | not to be needed. */ | |
| 5249 | ||
| 5250 | static bfd_boolean | |
| e5034e59 AM |
5251 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5252 | struct bfd_link_info *info, | |
| 5253 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5254 | { |
| e5034e59 AM |
5255 | if (act == notice_not_needed) |
| 5256 | { | |
| 5257 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5258 | |
| e5034e59 AM |
5259 | if (htab == NULL) |
| 5260 | return FALSE; | |
| 4dfe6ac6 | 5261 | |
| e5034e59 AM |
5262 | htab->dot_syms = NULL; |
| 5263 | } | |
| 5264 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5265 | } |
| 5266 | ||
| aa374f67 AM |
5267 | /* If --just-symbols against a final linked binary, then assume we need |
| 5268 | toc adjusting stubs when calling functions defined there. */ | |
| 5269 | ||
| 5270 | static void | |
| 5271 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5272 | { | |
| 5273 | if ((sec->flags & SEC_CODE) != 0 | |
| 5274 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5275 | && is_ppc64_elf (sec->owner)) | |
| 5276 | { | |
| 2c3f079f AM |
5277 | if (abiversion (sec->owner) >= 2 |
| 5278 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5279 | sec->has_toc_reloc = 1; |
| 5280 | } | |
| 5281 | _bfd_elf_link_just_syms (sec, info); | |
| 5282 | } | |
| 5283 | ||
| e054468f | 5284 | static struct plt_entry ** |
| 4ce794b7 AM |
5285 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5286 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5287 | { |
| 5288 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5289 | struct plt_entry **local_plt; |
| f961d9dd | 5290 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5291 | |
| 5292 | if (local_got_ents == NULL) | |
| 5293 | { | |
| 5294 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5295 | ||
| e054468f AM |
5296 | size *= (sizeof (*local_got_ents) |
| 5297 | + sizeof (*local_plt) | |
| 5298 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5299 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5300 | if (local_got_ents == NULL) |
| e054468f | 5301 | return NULL; |
| 411e1bfb AM |
5302 | elf_local_got_ents (abfd) = local_got_ents; |
| 5303 | } | |
| 5304 | ||
| e054468f | 5305 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5306 | { |
| 5307 | struct got_entry *ent; | |
| 5308 | ||
| 5309 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5310 | if (ent->addend == r_addend |
| 5311 | && ent->owner == abfd | |
| 5312 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5313 | break; |
| 5314 | if (ent == NULL) | |
| 5315 | { | |
| 5316 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5317 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5318 | if (ent == NULL) |
| 5319 | return FALSE; | |
| 5320 | ent->next = local_got_ents[r_symndx]; | |
| 5321 | ent->addend = r_addend; | |
| e717da7e | 5322 | ent->owner = abfd; |
| 411e1bfb | 5323 | ent->tls_type = tls_type; |
| 927be08e | 5324 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5325 | ent->got.refcount = 0; |
| 5326 | local_got_ents[r_symndx] = ent; | |
| 5327 | } | |
| 5328 | ent->got.refcount += 1; | |
| 5329 | } | |
| 5330 | ||
| e054468f | 5331 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5332 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5333 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5334 | |
| 5335 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5336 | } |
| 5337 | ||
| 411e1bfb | 5338 | static bfd_boolean |
| e054468f | 5339 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5340 | { |
| 411e1bfb | 5341 | struct plt_entry *ent; |
| 1e2f5b6e | 5342 | |
| e054468f | 5343 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5344 | if (ent->addend == addend) |
| 5345 | break; | |
| 5346 | if (ent == NULL) | |
| 1e2f5b6e | 5347 | { |
| 411e1bfb | 5348 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5349 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5350 | if (ent == NULL) |
| 5351 | return FALSE; | |
| e054468f | 5352 | ent->next = *plist; |
| 411e1bfb AM |
5353 | ent->addend = addend; |
| 5354 | ent->plt.refcount = 0; | |
| e054468f | 5355 | *plist = ent; |
| 1e2f5b6e | 5356 | } |
| 411e1bfb | 5357 | ent->plt.refcount += 1; |
| b34976b6 | 5358 | return TRUE; |
| 1e2f5b6e AM |
5359 | } |
| 5360 | ||
| e054468f AM |
5361 | static bfd_boolean |
| 5362 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5363 | { | |
| 5364 | return (r_type == R_PPC64_REL24 | |
| 5365 | || r_type == R_PPC64_REL14 | |
| 5366 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5367 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5368 | || r_type == R_PPC64_ADDR24 | |
| 5369 | || r_type == R_PPC64_ADDR14 | |
| 5370 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5371 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5372 | } | |
| 5373 | ||
| 5bd4f169 | 5374 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5375 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5376 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5377 | |
| b34976b6 | 5378 | static bfd_boolean |
| 4ce794b7 AM |
5379 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5380 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5381 | { |
| 65f38f15 | 5382 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5383 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5384 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5385 | const Elf_Internal_Rela *rel; |
| 5386 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5387 | asection *sreloc; |
| 1e2f5b6e | 5388 | asection **opd_sym_map; |
| 3a71aa26 | 5389 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5390 | |
| 0e1862bb | 5391 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5392 | return TRUE; |
| 5bd4f169 | 5393 | |
| 680a3378 AM |
5394 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5395 | In particular, any relocs in such sections should not affect GOT | |
| 5396 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5397 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5398 | relocs, and there's not much point in propagating relocs to shared | |
| 5399 | libs that the dynamic linker won't relocate. */ | |
| 5400 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5401 | return TRUE; | |
| 5402 | ||
| 0c8d6e5c | 5403 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5404 | |
| 65f38f15 | 5405 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5406 | if (htab == NULL) |
| 5407 | return FALSE; | |
| 5408 | ||
| 3a71aa26 AM |
5409 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5410 | FALSE, FALSE, TRUE); | |
| 5411 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5412 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5413 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5414 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5415 | sreloc = NULL; |
| 1e2f5b6e | 5416 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5417 | if (ppc64_elf_section_data (sec) != NULL |
| 5418 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5419 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5420 | |
| 5421 | rel_end = relocs + sec->reloc_count; | |
| 5422 | for (rel = relocs; rel < rel_end; rel++) | |
| 5423 | { | |
| 5424 | unsigned long r_symndx; | |
| 5425 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5426 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5427 | int tls_type; |
| 7c8fe5c4 | 5428 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5429 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5430 | |
| 5431 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5432 | if (r_symndx < symtab_hdr->sh_info) | |
| 5433 | h = NULL; | |
| 5434 | else | |
| 973a3492 | 5435 | { |
| 8c5b4e52 AM |
5436 | struct ppc_link_hash_entry *eh; |
| 5437 | ||
| 973a3492 | 5438 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 5439 | h = elf_follow_link (h); |
| 8c5b4e52 | 5440 | eh = (struct ppc_link_hash_entry *) h; |
| 81fbe831 AM |
5441 | |
| 5442 | /* PR15323, ref flags aren't set for references in the same | |
| 5443 | object. */ | |
| bc4e12de | 5444 | h->root.non_ir_ref_regular = 1; |
| 8c5b4e52 | 5445 | if (eh->is_func && eh->oh != NULL) |
| bc4e12de | 5446 | eh->oh->elf.root.non_ir_ref_regular = 1; |
| 1c865ab2 AM |
5447 | |
| 5448 | if (h == htab->elf.hgot) | |
| 5449 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5450 | } |
| 5bd4f169 | 5451 | |
| 727fc41e | 5452 | tls_type = 0; |
| e054468f | 5453 | ifunc = NULL; |
| 25f23106 AM |
5454 | if (h != NULL) |
| 5455 | { | |
| 5456 | if (h->type == STT_GNU_IFUNC) | |
| 5457 | { | |
| 5458 | h->needs_plt = 1; | |
| 5459 | ifunc = &h->plt.plist; | |
| 5460 | } | |
| 5461 | } | |
| 5462 | else | |
| 5463 | { | |
| 5464 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5465 | abfd, r_symndx); | |
| 5466 | if (isym == NULL) | |
| 5467 | return FALSE; | |
| 5468 | ||
| 5469 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5470 | { | |
| 5471 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5472 | rel->r_addend, PLT_IFUNC); | |
| 5473 | if (ifunc == NULL) | |
| 5474 | return FALSE; | |
| 5475 | } | |
| 5476 | } | |
| 727fc41e | 5477 | |
| cbf95972 | 5478 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5479 | switch (r_type) |
| 5bd4f169 | 5480 | { |
| 727fc41e AM |
5481 | case R_PPC64_TLSGD: |
| 5482 | case R_PPC64_TLSLD: | |
| 5483 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5484 | its parameter symbol. */ | |
| 5485 | break; | |
| 5486 | ||
| 411e1bfb AM |
5487 | case R_PPC64_GOT_TLSLD16: |
| 5488 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5489 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5490 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5491 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5492 | goto dogottls; |
| 5493 | ||
| 5494 | case R_PPC64_GOT_TLSGD16: | |
| 5495 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5496 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5497 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5498 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5499 | goto dogottls; |
| 5500 | ||
| 5501 | case R_PPC64_GOT_TPREL16_DS: | |
| 5502 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5503 | case R_PPC64_GOT_TPREL16_HI: | |
| 5504 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5505 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5506 | info->flags |= DF_STATIC_TLS; |
| 5507 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5508 | goto dogottls; | |
| 5509 | ||
| 5510 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5511 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5512 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5513 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5514 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5515 | dogottls: | |
| 5516 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5517 | /* Fall through */ |
| 411e1bfb | 5518 | |
| 5bd4f169 | 5519 | case R_PPC64_GOT16: |
| 5bd4f169 | 5520 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5521 | case R_PPC64_GOT16_HA: |
| 5522 | case R_PPC64_GOT16_HI: | |
| 5523 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5524 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5525 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5526 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5527 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5528 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5529 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5530 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5531 | || r_type == R_PPC64_GOT16 | |
| 5532 | || r_type == R_PPC64_GOT16_DS) | |
| 5533 | { | |
| 5534 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5535 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5536 | } |
| 5537 | ||
| e717da7e AM |
5538 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5539 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5540 | return FALSE; |
| 5bd4f169 AM |
5541 | |
| 5542 | if (h != NULL) | |
| 5543 | { | |
| 411e1bfb AM |
5544 | struct ppc_link_hash_entry *eh; |
| 5545 | struct got_entry *ent; | |
| 65f38f15 | 5546 | |
| 411e1bfb AM |
5547 | eh = (struct ppc_link_hash_entry *) h; |
| 5548 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5549 | if (ent->addend == rel->r_addend | |
| e717da7e | 5550 | && ent->owner == abfd |
| 411e1bfb AM |
5551 | && ent->tls_type == tls_type) |
| 5552 | break; | |
| 5553 | if (ent == NULL) | |
| 5bd4f169 | 5554 | { |
| 411e1bfb | 5555 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5556 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5557 | if (ent == NULL) |
| b34976b6 | 5558 | return FALSE; |
| 411e1bfb AM |
5559 | ent->next = eh->elf.got.glist; |
| 5560 | ent->addend = rel->r_addend; | |
| e717da7e | 5561 | ent->owner = abfd; |
| 411e1bfb | 5562 | ent->tls_type = tls_type; |
| 927be08e | 5563 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5564 | ent->got.refcount = 0; |
| 5565 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5566 | } |
| 411e1bfb | 5567 | ent->got.refcount += 1; |
| e7b938ca | 5568 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5569 | } |
| 411e1bfb AM |
5570 | else |
| 5571 | /* This is a global offset table entry for a local symbol. */ | |
| 5572 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5573 | rel->r_addend, tls_type)) | |
| 5574 | return FALSE; | |
| a345bc8d AM |
5575 | |
| 5576 | /* We may also need a plt entry if the symbol turns out to be | |
| 5577 | an ifunc. */ | |
| 0e1862bb | 5578 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5579 | { |
| 5580 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5581 | return FALSE; | |
| 5582 | } | |
| 5bd4f169 AM |
5583 | break; |
| 5584 | ||
| 5bd4f169 | 5585 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5586 | case R_PPC64_PLT16_HI: |
| 5587 | case R_PPC64_PLT16_LO: | |
| 5588 | case R_PPC64_PLT32: | |
| 5589 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5590 | /* This symbol requires a procedure linkage table entry. */ |
| 5591 | plt_list = ifunc; | |
| 5592 | if (h != NULL) | |
| e054468f | 5593 | { |
| e054468f AM |
5594 | h->needs_plt = 1; |
| 5595 | if (h->root.root.string[0] == '.' | |
| 5596 | && h->root.root.string[1] != '\0') | |
| 5597 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5598 | plt_list = &h->plt.plist; |
| 5599 | } | |
| 5600 | if (plt_list == NULL) | |
| 5601 | { | |
| 5602 | /* It does not make sense to have a procedure linkage | |
| 5603 | table entry for a non-ifunc local symbol. */ | |
| 5604 | info->callbacks->einfo | |
| 695344c0 | 5605 | /* xgettext:c-format */ |
| 174d0a74 | 5606 | (_("%H: %s reloc against local symbol\n"), |
| cbf95972 AM |
5607 | abfd, sec, rel->r_offset, |
| 5608 | ppc64_elf_howto_table[r_type]->name); | |
| 5609 | bfd_set_error (bfd_error_bad_value); | |
| 5610 | return FALSE; | |
| e054468f | 5611 | } |
| cbf95972 AM |
5612 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5613 | return FALSE; | |
| 5bd4f169 AM |
5614 | break; |
| 5615 | ||
| 5616 | /* The following relocations don't need to propagate the | |
| 5617 | relocation if linking a shared object since they are | |
| 5618 | section relative. */ | |
| 5619 | case R_PPC64_SECTOFF: | |
| 5620 | case R_PPC64_SECTOFF_LO: | |
| 5621 | case R_PPC64_SECTOFF_HI: | |
| 5622 | case R_PPC64_SECTOFF_HA: | |
| 5623 | case R_PPC64_SECTOFF_DS: | |
| 5624 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5625 | case R_PPC64_DTPREL16: |
| 5626 | case R_PPC64_DTPREL16_LO: | |
| 5627 | case R_PPC64_DTPREL16_HI: | |
| 5628 | case R_PPC64_DTPREL16_HA: | |
| 5629 | case R_PPC64_DTPREL16_DS: | |
| 5630 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5631 | case R_PPC64_DTPREL16_HIGH: |
| 5632 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5633 | case R_PPC64_DTPREL16_HIGHER: |
| 5634 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5635 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5636 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5637 | break; |
| 5638 | ||
| ad8e1ba5 | 5639 | /* Nor do these. */ |
| 25f23106 AM |
5640 | case R_PPC64_REL16: |
| 5641 | case R_PPC64_REL16_LO: | |
| 5642 | case R_PPC64_REL16_HI: | |
| 5643 | case R_PPC64_REL16_HA: | |
| a680de9a | 5644 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5645 | break; |
| 5646 | ||
| 45965137 AM |
5647 | /* Not supported as a dynamic relocation. */ |
| 5648 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5649 | if (bfd_link_pic (info)) |
| 45965137 AM |
5650 | { |
| 5651 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5652 | ppc_howto_init (); | |
| 695344c0 | 5653 | /* xgettext:c-format */ |
| 174d0a74 | 5654 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| 45965137 AM |
5655 | "in shared libraries and PIEs.\n"), |
| 5656 | abfd, sec, rel->r_offset, | |
| 5657 | ppc64_elf_howto_table[r_type]->name); | |
| 5658 | bfd_set_error (bfd_error_bad_value); | |
| 5659 | return FALSE; | |
| 5660 | } | |
| 5661 | break; | |
| 5662 | ||
| ad8e1ba5 | 5663 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5664 | case R_PPC64_TOC16_DS: |
| 5665 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5666 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5667 | /* Fall through. */ |
| ad8e1ba5 AM |
5668 | case R_PPC64_TOC16_LO: |
| 5669 | case R_PPC64_TOC16_HI: | |
| 5670 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5671 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5672 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5673 | break; |
| 5674 | ||
| 006589cf AM |
5675 | /* Marker reloc. */ |
| 5676 | case R_PPC64_ENTRY: | |
| 5677 | break; | |
| 5678 | ||
| 5bd4f169 AM |
5679 | /* This relocation describes the C++ object vtable hierarchy. |
| 5680 | Reconstruct it for later use during GC. */ | |
| 5681 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5682 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5683 | return FALSE; |
| 5bd4f169 AM |
5684 | break; |
| 5685 | ||
| 5686 | /* This relocation describes which C++ vtable entries are actually | |
| 5687 | used. Record for later use during GC. */ | |
| 5688 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5689 | BFD_ASSERT (h != NULL); |
| 5690 | if (h != NULL | |
| 5691 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5692 | return FALSE; |
| 5bd4f169 AM |
5693 | break; |
| 5694 | ||
| 721956f4 AM |
5695 | case R_PPC64_REL14: |
| 5696 | case R_PPC64_REL14_BRTAKEN: | |
| 5697 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5698 | { |
| 5699 | asection *dest = NULL; | |
| 5700 | ||
| 5701 | /* Heuristic: If jumping outside our section, chances are | |
| 5702 | we are going to need a stub. */ | |
| 5703 | if (h != NULL) | |
| 5704 | { | |
| 5705 | /* If the sym is weak it may be overridden later, so | |
| 5706 | don't assume we know where a weak sym lives. */ | |
| 5707 | if (h->root.type == bfd_link_hash_defined) | |
| 5708 | dest = h->root.u.def.section; | |
| 5709 | } | |
| 5710 | else | |
| 87d72d41 AM |
5711 | { |
| 5712 | Elf_Internal_Sym *isym; | |
| 5713 | ||
| 5714 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5715 | abfd, r_symndx); | |
| 5716 | if (isym == NULL) | |
| 5717 | return FALSE; | |
| 5718 | ||
| 5719 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5720 | } | |
| 5721 | ||
| 220c76dd | 5722 | if (dest != sec) |
| 7c8fe5c4 | 5723 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5724 | } |
| 721956f4 AM |
5725 | /* Fall through. */ |
| 5726 | ||
| 5d1634d7 | 5727 | case R_PPC64_REL24: |
| cbf95972 AM |
5728 | plt_list = ifunc; |
| 5729 | if (h != NULL) | |
| 5d1634d7 | 5730 | { |
| e054468f AM |
5731 | h->needs_plt = 1; |
| 5732 | if (h->root.root.string[0] == '.' | |
| 5733 | && h->root.root.string[1] != '\0') | |
| 5734 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5735 | |
| 3a71aa26 | 5736 | if (h == tga || h == dottga) |
| cbf95972 AM |
5737 | { |
| 5738 | sec->has_tls_reloc = 1; | |
| 5739 | if (rel != relocs | |
| 5740 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5741 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5742 | /* We have a new-style __tls_get_addr call with | |
| 5743 | a marker reloc. */ | |
| 5744 | ; | |
| 5745 | else | |
| 5746 | /* Mark this section as having an old-style call. */ | |
| 5747 | sec->has_tls_get_addr_call = 1; | |
| 5748 | } | |
| 5749 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5750 | } |
| cbf95972 AM |
5751 | |
| 5752 | /* We may need a .plt entry if the function this reloc | |
| 5753 | refers to is in a shared lib. */ | |
| 5754 | if (plt_list | |
| 5755 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5756 | return FALSE; | |
| 411e1bfb AM |
5757 | break; |
| 5758 | ||
| cbf95972 AM |
5759 | case R_PPC64_ADDR14: |
| 5760 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5761 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5762 | case R_PPC64_ADDR24: | |
| 5763 | goto dodyn; | |
| 5764 | ||
| 411e1bfb AM |
5765 | case R_PPC64_TPREL64: |
| 5766 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5767 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5768 | info->flags |= DF_STATIC_TLS; |
| 5769 | goto dotlstoc; | |
| 5770 | ||
| 5771 | case R_PPC64_DTPMOD64: | |
| 5772 | if (rel + 1 < rel_end | |
| 5773 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5774 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5775 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5776 | else |
| 951fd09b | 5777 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5778 | goto dotlstoc; |
| 5779 | ||
| 5780 | case R_PPC64_DTPREL64: | |
| 5781 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5782 | if (rel != relocs | |
| 5783 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5784 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5785 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5786 | Don't mark with TLS_DTPREL. */ | |
| 5787 | goto dodyn; | |
| 5788 | ||
| 5789 | dotlstoc: | |
| 5790 | sec->has_tls_reloc = 1; | |
| 5791 | if (h != NULL) | |
| 5792 | { | |
| 5793 | struct ppc_link_hash_entry *eh; | |
| 5794 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5795 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5796 | } |
| 5797 | else | |
| 5798 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5799 | rel->r_addend, tls_type)) | |
| 5800 | return FALSE; | |
| 5801 | ||
| 7c8fe5c4 AM |
5802 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5803 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5804 | { |
| 3a71aa26 AM |
5805 | bfd_size_type amt; |
| 5806 | ||
| e7b938ca | 5807 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5808 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5809 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5810 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5811 | return FALSE; | |
| 5812 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5813 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5814 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5815 | return FALSE; |
| 7c8fe5c4 AM |
5816 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5817 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5818 | } |
| 5819 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5820 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5821 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5822 | |
| 5823 | /* Mark the second slot of a GD or LD entry. | |
| 5824 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5825 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5826 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5827 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5828 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5829 | goto dodyn; |
| 5830 | ||
| 5831 | case R_PPC64_TPREL16: | |
| 5832 | case R_PPC64_TPREL16_LO: | |
| 5833 | case R_PPC64_TPREL16_HI: | |
| 5834 | case R_PPC64_TPREL16_HA: | |
| 5835 | case R_PPC64_TPREL16_DS: | |
| 5836 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5837 | case R_PPC64_TPREL16_HIGH: |
| 5838 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5839 | case R_PPC64_TPREL16_HIGHER: |
| 5840 | case R_PPC64_TPREL16_HIGHERA: | |
| 5841 | case R_PPC64_TPREL16_HIGHEST: | |
| 5842 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5843 | if (bfd_link_dll (info)) |
| 5844 | info->flags |= DF_STATIC_TLS; | |
| 5845 | goto dodyn; | |
| 5d1634d7 | 5846 | |
| e86ce104 | 5847 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5848 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5849 | && rel + 1 < rel_end |
| 4ce794b7 | 5850 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5851 | { |
| 8387904d | 5852 | if (h != NULL) |
| 8c5b4e52 | 5853 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 8387904d AM |
5854 | else |
| 5855 | { | |
| 5856 | asection *s; | |
| 87d72d41 | 5857 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5858 | |
| 87d72d41 AM |
5859 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5860 | abfd, r_symndx); | |
| 5861 | if (isym == NULL) | |
| 8387904d | 5862 | return FALSE; |
| 87d72d41 AM |
5863 | |
| 5864 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5865 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5866 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5867 | } |
| 1e2f5b6e | 5868 | } |
| e86ce104 AM |
5869 | /* Fall through. */ |
| 5870 | ||
| 65f38f15 AM |
5871 | case R_PPC64_ADDR16: |
| 5872 | case R_PPC64_ADDR16_DS: | |
| 5873 | case R_PPC64_ADDR16_HA: | |
| 5874 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5875 | case R_PPC64_ADDR16_HIGH: |
| 5876 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5877 | case R_PPC64_ADDR16_HIGHER: |
| 5878 | case R_PPC64_ADDR16_HIGHERA: | |
| 5879 | case R_PPC64_ADDR16_HIGHEST: | |
| 5880 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5881 | case R_PPC64_ADDR16_LO: | |
| 5882 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5883 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5884 | && rel->r_addend == 0) |
| 5885 | { | |
| 5886 | /* We may need a .plt entry if this reloc refers to a | |
| 5887 | function in a shared lib. */ | |
| 5888 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5889 | return FALSE; | |
| 5890 | h->pointer_equality_needed = 1; | |
| 5891 | } | |
| 5892 | /* Fall through. */ | |
| 5893 | ||
| 5894 | case R_PPC64_REL30: | |
| 5895 | case R_PPC64_REL32: | |
| 5896 | case R_PPC64_REL64: | |
| 65f38f15 | 5897 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5898 | case R_PPC64_UADDR16: |
| 5899 | case R_PPC64_UADDR32: | |
| 5900 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5901 | case R_PPC64_TOC: |
| 0e1862bb | 5902 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5903 | /* We may need a copy reloc. */ |
| f5385ebf | 5904 | h->non_got_ref = 1; |
| 81848ca0 | 5905 | |
| 41bd81ab | 5906 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5907 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5908 | break; |
| e86ce104 | 5909 | |
| 65f38f15 AM |
5910 | /* If we are creating a shared library, and this is a reloc |
| 5911 | against a global symbol, or a non PC relative reloc | |
| 5912 | against a local symbol, then we need to copy the reloc | |
| 5913 | into the shared library. However, if we are linking with | |
| 5914 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5915 | global symbol which is defined in an object we are | |
| 5916 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5917 | this point we have not seen all the input files, so it is | |
| 5918 | possible that DEF_REGULAR is not set now but will be set | |
| 5919 | later (it is never cleared). In case of a weak definition, | |
| 5920 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5921 | a shared library. We account for that possibility below by | |
| f4656909 | 5922 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5923 | table entry. A similar situation occurs when creating |
| 5924 | shared libraries and symbol visibility changes render the | |
| 5925 | symbol local. | |
| 5926 | ||
| 5927 | If on the other hand, we are creating an executable, we | |
| 5928 | may need to keep relocations for symbols satisfied by a | |
| 5929 | dynamic library if we manage to avoid copy relocs for the | |
| 5930 | symbol. */ | |
| 411e1bfb | 5931 | dodyn: |
| 0e1862bb | 5932 | if ((bfd_link_pic (info) |
| 1d483afe | 5933 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5934 | || (h != NULL |
| 198f1157 | 5935 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5936 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5937 | || !h->def_regular)))) |
| f4656909 | 5938 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5939 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5940 | && h != NULL |
| 5941 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5942 | || !h->def_regular)) |
| 0e1862bb | 5943 | || (!bfd_link_pic (info) |
| 25f23106 | 5944 | && ifunc != NULL)) |
| 5bd4f169 | 5945 | { |
| 65f38f15 AM |
5946 | /* We must copy these reloc types into the output file. |
| 5947 | Create a reloc section in dynobj and make room for | |
| 5948 | this reloc. */ | |
| 5bd4f169 AM |
5949 | if (sreloc == NULL) |
| 5950 | { | |
| 83bac4b0 NC |
5951 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5952 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5953 | |
| 5bd4f169 | 5954 | if (sreloc == NULL) |
| 83bac4b0 | 5955 | return FALSE; |
| 5bd4f169 AM |
5956 | } |
| 5957 | ||
| 65f38f15 AM |
5958 | /* If this is a global symbol, we count the number of |
| 5959 | relocations we need for this symbol. */ | |
| 5960 | if (h != NULL) | |
| 5961 | { | |
| 19e08130 AM |
5962 | struct elf_dyn_relocs *p; |
| 5963 | struct elf_dyn_relocs **head; | |
| 5964 | ||
| ec338859 | 5965 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5966 | p = *head; |
| 5967 | if (p == NULL || p->sec != sec) | |
| 5968 | { | |
| 5969 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5970 | if (p == NULL) | |
| 5971 | return FALSE; | |
| 5972 | p->next = *head; | |
| 5973 | *head = p; | |
| 5974 | p->sec = sec; | |
| 5975 | p->count = 0; | |
| 5976 | p->pc_count = 0; | |
| 5977 | } | |
| 5978 | p->count += 1; | |
| 5979 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5980 | p->pc_count += 1; | |
| 65f38f15 AM |
5981 | } |
| 5982 | else | |
| 5983 | { | |
| ec338859 AM |
5984 | /* Track dynamic relocs needed for local syms too. |
| 5985 | We really need local syms available to do this | |
| 5986 | easily. Oh well. */ | |
| 19e08130 AM |
5987 | struct ppc_dyn_relocs *p; |
| 5988 | struct ppc_dyn_relocs **head; | |
| 5989 | bfd_boolean is_ifunc; | |
| ec338859 | 5990 | asection *s; |
| 6edfbbad | 5991 | void *vpp; |
| 87d72d41 | 5992 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5993 | |
| 87d72d41 AM |
5994 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5995 | abfd, r_symndx); | |
| 5996 | if (isym == NULL) | |
| b34976b6 | 5997 | return FALSE; |
| ec338859 | 5998 | |
| 87d72d41 AM |
5999 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 6000 | if (s == NULL) | |
| 6001 | s = sec; | |
| 6002 | ||
| 6edfbbad | 6003 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
6004 | head = (struct ppc_dyn_relocs **) vpp; |
| 6005 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 6006 | p = *head; | |
| 6007 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 6008 | p = p->next; | |
| 6009 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 6010 | { | |
| 6011 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6012 | if (p == NULL) | |
| 6013 | return FALSE; | |
| 6014 | p->next = *head; | |
| 6015 | *head = p; | |
| 6016 | p->sec = sec; | |
| 6017 | p->ifunc = is_ifunc; | |
| 6018 | p->count = 0; | |
| 6019 | } | |
| 6020 | p->count += 1; | |
| ec338859 | 6021 | } |
| 65f38f15 | 6022 | } |
| 5bd4f169 | 6023 | break; |
| 65f38f15 AM |
6024 | |
| 6025 | default: | |
| 96e0dda4 | 6026 | break; |
| 5bd4f169 AM |
6027 | } |
| 6028 | } | |
| 6029 | ||
| b34976b6 | 6030 | return TRUE; |
| 5bd4f169 AM |
6031 | } |
| 6032 | ||
| ee67d69a AM |
6033 | /* Merge backend specific data from an object file to the output |
| 6034 | object file when linking. */ | |
| 6035 | ||
| 6036 | static bfd_boolean | |
| 50e03d47 | 6037 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6038 | { |
| 50e03d47 | 6039 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6040 | unsigned long iflags, oflags; |
| 6041 | ||
| 6042 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6043 | return TRUE; | |
| 6044 | ||
| 6045 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6046 | return TRUE; | |
| 6047 | ||
| 50e03d47 | 6048 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6049 | return FALSE; |
| 6050 | ||
| 6051 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6052 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6053 | ||
| f6c7c3e8 | 6054 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6055 | { |
| 4eca0228 | 6056 | _bfd_error_handler |
| 695344c0 | 6057 | /* xgettext:c-format */ |
| ee67d69a AM |
6058 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); |
| 6059 | bfd_set_error (bfd_error_bad_value); | |
| 6060 | return FALSE; | |
| 6061 | } | |
| f6c7c3e8 | 6062 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6063 | { |
| 4eca0228 | 6064 | _bfd_error_handler |
| 695344c0 | 6065 | /* xgettext:c-format */ |
| ee67d69a AM |
6066 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), |
| 6067 | ibfd, iflags, oflags); | |
| 6068 | bfd_set_error (bfd_error_bad_value); | |
| 6069 | return FALSE; | |
| 6070 | } | |
| 6071 | ||
| 50e03d47 | 6072 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6073 | |
| ee67d69a | 6074 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6075 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6076 | |
| 6077 | return TRUE; | |
| 6078 | } | |
| 6079 | ||
| 6080 | static bfd_boolean | |
| 6081 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6082 | { | |
| 6083 | /* Print normal ELF private data. */ | |
| 6084 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6085 | ||
| 6086 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6087 | { | |
| 6088 | FILE *file = ptr; | |
| 6089 | ||
| ee67d69a AM |
6090 | fprintf (file, _("private flags = 0x%lx:"), |
| 6091 | elf_elfheader (abfd)->e_flags); | |
| 6092 | ||
| 6093 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6094 | fprintf (file, _(" [abiv%ld]"), | |
| 6095 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6096 | fputc ('\n', file); | |
| 6097 | } | |
| 6098 | ||
| 6099 | return TRUE; | |
| 6100 | } | |
| 6101 | ||
| 8387904d | 6102 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6103 | of the code entry point, and its section, which must be in the same |
| 6104 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6105 | |
| 6106 | static bfd_vma | |
| 6107 | opd_entry_value (asection *opd_sec, | |
| 6108 | bfd_vma offset, | |
| 6109 | asection **code_sec, | |
| aef36ac1 AM |
6110 | bfd_vma *code_off, |
| 6111 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6112 | { |
| 6113 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6114 | Elf_Internal_Rela *relocs; |
| 8387904d | 6115 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6116 | bfd_vma val; |
| 8387904d | 6117 | |
| 9f296da3 AM |
6118 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6119 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6120 | if (opd_sec->reloc_count == 0) |
| 6121 | { | |
| 729eabd5 | 6122 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6123 | |
| 729eabd5 AM |
6124 | if (contents == NULL) |
| 6125 | { | |
| 6126 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6127 | return (bfd_vma) -1; | |
| 6128 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6129 | } | |
| ee1e4ede | 6130 | |
| dbb3fbbb | 6131 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6132 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6133 | return (bfd_vma) -1; |
| 6134 | ||
| 729eabd5 | 6135 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6136 | if (code_sec != NULL) |
| 6137 | { | |
| 6138 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6139 | |
| aef36ac1 | 6140 | if (in_code_sec) |
| 4b85d634 | 6141 | { |
| aef36ac1 AM |
6142 | sec = *code_sec; |
| 6143 | if (sec->vma <= val | |
| 6144 | && val < sec->vma + sec->size) | |
| 6145 | likely = sec; | |
| 6146 | else | |
| 6147 | val = -1; | |
| 6148 | } | |
| 6149 | else | |
| 6150 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6151 | if (sec->vma <= val | |
| 6152 | && (sec->flags & SEC_LOAD) != 0 | |
| 6153 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6154 | likely = sec; | |
| 6155 | if (likely != NULL) | |
| 6156 | { | |
| 6157 | *code_sec = likely; | |
| 6158 | if (code_off != NULL) | |
| 6159 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6160 | } |
| 6161 | } | |
| aef36ac1 | 6162 | return val; |
| 4b85d634 AM |
6163 | } |
| 6164 | ||
| 0c8d6e5c | 6165 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6166 | |
| 729eabd5 | 6167 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6168 | if (relocs == NULL) |
| 6169 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6170 | /* PR 17512: file: df8e1fd6. */ |
| 6171 | if (relocs == NULL) | |
| 6172 | return (bfd_vma) -1; | |
| 645ea6a9 | 6173 | |
| 8387904d | 6174 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6175 | lo = relocs; |
| 8387904d | 6176 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6177 | val = (bfd_vma) -1; |
| 8387904d AM |
6178 | while (lo < hi) |
| 6179 | { | |
| 6180 | look = lo + (hi - lo) / 2; | |
| 6181 | if (look->r_offset < offset) | |
| 6182 | lo = look + 1; | |
| 6183 | else if (look->r_offset > offset) | |
| 6184 | hi = look; | |
| 6185 | else | |
| 6186 | { | |
| 0ffa91dd NC |
6187 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6188 | ||
| 8387904d AM |
6189 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6190 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6191 | { | |
| 6192 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6193 | asection *sec = NULL; |
| 8387904d | 6194 | |
| b53dfeb2 AM |
6195 | if (symndx >= symtab_hdr->sh_info |
| 6196 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6197 | { |
| 6198 | struct elf_link_hash_entry **sym_hashes; | |
| 6199 | struct elf_link_hash_entry *rh; | |
| 6200 | ||
| 6201 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6202 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6203 | if (rh != NULL) |
| 6204 | { | |
| 6205 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6206 | if (rh->root.type != bfd_link_hash_defined |
| 6207 | && rh->root.type != bfd_link_hash_defweak) | |
| 6208 | break; | |
| 6209 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6210 | { |
| bb854a36 AM |
6211 | val = rh->root.u.def.value; |
| 6212 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6213 | } |
| 6214 | } | |
| 6215 | } | |
| 6216 | ||
| 6217 | if (sec == NULL) | |
| 6218 | { | |
| 6219 | Elf_Internal_Sym *sym; | |
| 6220 | ||
| 6221 | if (symndx < symtab_hdr->sh_info) | |
| 6222 | { | |
| 6223 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6224 | if (sym == NULL) | |
| 6225 | { | |
| 6226 | size_t symcnt = symtab_hdr->sh_info; | |
| 6227 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6228 | symcnt, 0, | |
| 6229 | NULL, NULL, NULL); | |
| 6230 | if (sym == NULL) | |
| 6231 | break; | |
| 6232 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6233 | } | |
| 6234 | sym += symndx; | |
| 128205bb AM |
6235 | } |
| 6236 | else | |
| 6237 | { | |
| b53dfeb2 AM |
6238 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6239 | 1, symndx, | |
| 6240 | NULL, NULL, NULL); | |
| 128205bb AM |
6241 | if (sym == NULL) |
| 6242 | break; | |
| 128205bb | 6243 | } |
| b53dfeb2 AM |
6244 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6245 | if (sec == NULL) | |
| 6246 | break; | |
| 6247 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6248 | val = sym->st_value; | |
| 8387904d | 6249 | } |
| b53dfeb2 | 6250 | |
| 8387904d AM |
6251 | val += look->r_addend; |
| 6252 | if (code_off != NULL) | |
| 6253 | *code_off = val; | |
| 6254 | if (code_sec != NULL) | |
| aef36ac1 AM |
6255 | { |
| 6256 | if (in_code_sec && *code_sec != sec) | |
| 6257 | return -1; | |
| 6258 | else | |
| 6259 | *code_sec = sec; | |
| 6260 | } | |
| b53dfeb2 | 6261 | if (sec->output_section != NULL) |
| 8387904d | 6262 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6263 | } |
| 6264 | break; | |
| 6265 | } | |
| 6266 | } | |
| 645ea6a9 | 6267 | |
| 645ea6a9 | 6268 | return val; |
| 8387904d AM |
6269 | } |
| 6270 | ||
| aef36ac1 AM |
6271 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6272 | function size and set *CODE_OFF to the function's entry point, | |
| 6273 | otherwise return zero. */ | |
| 9f296da3 | 6274 | |
| aef36ac1 AM |
6275 | static bfd_size_type |
| 6276 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6277 | bfd_vma *code_off) | |
| 9f296da3 | 6278 | { |
| aef36ac1 AM |
6279 | bfd_size_type size; |
| 6280 | ||
| 6281 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6282 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6283 | return 0; | |
| 6284 | ||
| 6285 | size = 0; | |
| 6286 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6287 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6288 | ||
| 6289 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6290 | { |
| b07bca4e AM |
6291 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6292 | bfd_vma symval = sym->value; | |
| 6293 | ||
| 6294 | if (opd != NULL | |
| 6295 | && opd->adjust != NULL | |
| 6296 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6297 | { | |
| 6298 | /* opd_entry_value will use cached relocs that have been | |
| 6299 | adjusted, but with raw symbols. That means both local | |
| 6300 | and global symbols need adjusting. */ | |
| 6301 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6302 | if (adjust == -1) | |
| 6303 | return 0; | |
| 6304 | symval += adjust; | |
| 6305 | } | |
| 6306 | ||
| 6307 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6308 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6309 | return 0; | |
| 6310 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6311 | symbol. This size has nothing to do with the code size of the | |
| 6312 | function, which is what we're supposed to return, but the | |
| 6313 | code size isn't available without looking up the dot-sym. | |
| 6314 | However, doing that would be a waste of time particularly | |
| 6315 | since elf_find_function will look at the dot-sym anyway. | |
| 6316 | Now, elf_find_function will keep the largest size of any | |
| 6317 | function sym found at the code address of interest, so return | |
| 6318 | 1 here to avoid it incorrectly caching a larger function size | |
| 6319 | for a small function. This does mean we return the wrong | |
| 6320 | size for a new-ABI function of size 24, but all that does is | |
| 6321 | disable caching for such functions. */ | |
| 6322 | if (size == 24) | |
| 6323 | size = 1; | |
| 9f296da3 | 6324 | } |
| aef36ac1 AM |
6325 | else |
| 6326 | { | |
| 6327 | if (sym->section != sec) | |
| 6328 | return 0; | |
| 6329 | *code_off = sym->value; | |
| 6330 | } | |
| 6331 | if (size == 0) | |
| 6332 | size = 1; | |
| 6333 | return size; | |
| 9f296da3 AM |
6334 | } |
| 6335 | ||
| f378ab09 AM |
6336 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6337 | object with st_other localentry bits of zero, ie. its local entry | |
| 6338 | point coincides with its global entry point. */ | |
| 6339 | ||
| 6340 | static bfd_boolean | |
| 6341 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6342 | { | |
| 6343 | return (h != NULL | |
| 6344 | && h->type == STT_FUNC | |
| 6345 | && h->root.type == bfd_link_hash_defined | |
| 6346 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6347 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6348 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6349 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6350 | } | |
| 6351 | ||
| 854b41e7 AM |
6352 | /* Return true if symbol is defined in a regular object file. */ |
| 6353 | ||
| 6354 | static bfd_boolean | |
| 6355 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6356 | { | |
| 6357 | return ((h->root.type == bfd_link_hash_defined | |
| 6358 | || h->root.type == bfd_link_hash_defweak) | |
| 6359 | && h->root.u.def.section != NULL | |
| 6360 | && h->root.u.def.section->output_section != NULL); | |
| 6361 | } | |
| 6362 | ||
| b31867b6 AM |
6363 | /* If FDH is a function descriptor symbol, return the associated code |
| 6364 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6365 | ||
| 6366 | static struct ppc_link_hash_entry * | |
| 6367 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6368 | { | |
| 6369 | if (fdh->is_func_descriptor) | |
| 6370 | { | |
| 6371 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6372 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6373 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6374 | return fh; | |
| 6375 | } | |
| 6376 | return NULL; | |
| 6377 | } | |
| 6378 | ||
| 6379 | /* If FH is a function code entry symbol, return the associated | |
| 6380 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6381 | ||
| 6382 | static struct ppc_link_hash_entry * | |
| 6383 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6384 | { | |
| 6385 | if (fh->oh != NULL | |
| 6386 | && fh->oh->is_func_descriptor) | |
| 6387 | { | |
| 6388 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6389 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6390 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6391 | return fdh; | |
| 6392 | } | |
| 6393 | return NULL; | |
| 6394 | } | |
| 6395 | ||
| 8c5b4e52 AM |
6396 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6397 | ||
| 6398 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6399 | ||
| 6400 | static bfd_boolean | |
| 6401 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6402 | { | |
| 6403 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6404 | ||
| 6405 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6406 | { | |
| 6407 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6408 | htab->need_func_desc_adj = 0; | |
| 6409 | } | |
| 6410 | return bfd_elf_gc_sections (abfd, info); | |
| 6411 | } | |
| 6412 | ||
| 74f0fb50 AM |
6413 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6414 | ||
| 6415 | static void | |
| 6416 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6417 | { | |
| 6418 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6419 | struct bfd_sym_chain *sym; | |
| 6420 | ||
| 4dfe6ac6 NC |
6421 | if (htab == NULL) |
| 6422 | return; | |
| 6423 | ||
| 74f0fb50 AM |
6424 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6425 | { | |
| b31867b6 | 6426 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6427 | asection *sec; |
| 6428 | ||
| 6429 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6430 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6431 | if (eh == NULL) |
| 6432 | continue; | |
| 6433 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6434 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6435 | continue; | |
| 6436 | ||
| b31867b6 AM |
6437 | fh = defined_code_entry (eh); |
| 6438 | if (fh != NULL) | |
| 74f0fb50 | 6439 | { |
| b31867b6 | 6440 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6441 | sec->flags |= SEC_KEEP; |
| 6442 | } | |
| 6443 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6444 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6445 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6446 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6447 | sec->flags |= SEC_KEEP; |
| 6448 | ||
| 6449 | sec = eh->elf.root.u.def.section; | |
| 6450 | sec->flags |= SEC_KEEP; | |
| 6451 | } | |
| 6452 | } | |
| 6453 | ||
| 64d03ab5 AM |
6454 | /* Mark sections containing dynamically referenced symbols. When |
| 6455 | building shared libraries, we must assume that any visible symbol is | |
| 6456 | referenced. */ | |
| 6457 | ||
| 6458 | static bfd_boolean | |
| 6459 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6460 | { | |
| 6461 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6462 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6463 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6464 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6465 | |
| 64d03ab5 | 6466 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6467 | fdh = defined_func_desc (eh); |
| 6468 | if (fdh != NULL) | |
| 6469 | eh = fdh; | |
| 64d03ab5 AM |
6470 | |
| 6471 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6472 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6473 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6474 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6475 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6476 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6477 | && (!bfd_link_executable (info) |
| e278ae05 | 6478 | || info->gc_keep_exported |
| b407645f AM |
6479 | || info->export_dynamic |
| 6480 | || (eh->elf.dynamic | |
| 6481 | && d != NULL | |
| 6482 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6483 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6484 | || !bfd_hide_sym_by_version (info->version_info, |
| 6485 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6486 | { |
| 6487 | asection *code_sec; | |
| b31867b6 | 6488 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6489 | |
| 6490 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6491 | ||
| 6492 | /* Function descriptor syms cause the associated | |
| 6493 | function code sym section to be marked. */ | |
| b31867b6 AM |
6494 | fh = defined_code_entry (eh); |
| 6495 | if (fh != NULL) | |
| 6496 | { | |
| 6497 | code_sec = fh->elf.root.u.def.section; | |
| 6498 | code_sec->flags |= SEC_KEEP; | |
| 6499 | } | |
| 64d03ab5 AM |
6500 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6501 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6502 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6503 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6504 | code_sec->flags |= SEC_KEEP; |
| 6505 | } | |
| 6506 | ||
| 6507 | return TRUE; | |
| 6508 | } | |
| 6509 | ||
| 5bd4f169 AM |
6510 | /* Return the section that should be marked against GC for a given |
| 6511 | relocation. */ | |
| 6512 | ||
| 6513 | static asection * | |
| 4ce794b7 | 6514 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6515 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6516 | Elf_Internal_Rela *rel, |
| 6517 | struct elf_link_hash_entry *h, | |
| 6518 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6519 | { |
| ccfa59ea AM |
6520 | asection *rsec; |
| 6521 | ||
| ccfa59ea AM |
6522 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6523 | function sections, as all functions are referenced in .opd. */ | |
| 6524 | rsec = NULL; | |
| 6525 | if (get_opd_info (sec) != NULL) | |
| 6526 | return rsec; | |
| 1e2f5b6e | 6527 | |
| 5bd4f169 AM |
6528 | if (h != NULL) |
| 6529 | { | |
| 04c9666a | 6530 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6531 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6532 | |
| 4ce794b7 | 6533 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6534 | switch (r_type) |
| 5bd4f169 AM |
6535 | { |
| 6536 | case R_PPC64_GNU_VTINHERIT: | |
| 6537 | case R_PPC64_GNU_VTENTRY: | |
| 6538 | break; | |
| 6539 | ||
| 6540 | default: | |
| 6541 | switch (h->root.type) | |
| 6542 | { | |
| 6543 | case bfd_link_hash_defined: | |
| 6544 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6545 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6546 | fdh = defined_func_desc (eh); |
| 6547 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6548 | { |
| 6549 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6550 | a call reloc. Mark the function descriptor too | |
| 6551 | against garbage collection. */ | |
| 6552 | fdh->elf.mark = 1; | |
| 6553 | if (fdh->elf.u.weakdef != NULL) | |
| 6554 | fdh->elf.u.weakdef->mark = 1; | |
| 6555 | eh = fdh; | |
| 6556 | } | |
| 1e2f5b6e AM |
6557 | |
| 6558 | /* Function descriptor syms cause the associated | |
| 6559 | function code sym section to be marked. */ | |
| b31867b6 AM |
6560 | fh = defined_code_entry (eh); |
| 6561 | if (fh != NULL) | |
| ccfa59ea AM |
6562 | { |
| 6563 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6564 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6565 | |
| b31867b6 | 6566 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6567 | } |
| 8387904d AM |
6568 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6569 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6570 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6571 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6572 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6573 | else |
| 1e2f5b6e AM |
6574 | rsec = h->root.u.def.section; |
| 6575 | break; | |
| 5bd4f169 AM |
6576 | |
| 6577 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6578 | rsec = h->root.u.c.p->section; |
| 6579 | break; | |
| 5bd4f169 AM |
6580 | |
| 6581 | default: | |
| fb34365b | 6582 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6583 | } |
| 6584 | } | |
| 6585 | } | |
| 6586 | else | |
| 6587 | { | |
| 74f0fb50 | 6588 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6589 | |
| 6590 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6591 | opd = get_opd_info (rsec); |
| 6592 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6593 | { |
| 74f0fb50 | 6594 | rsec->gc_mark = 1; |
| ccfa59ea | 6595 | |
| 51aecdc5 | 6596 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6597 | } |
| 5bd4f169 AM |
6598 | } |
| 6599 | ||
| 1e2f5b6e | 6600 | return rsec; |
| 5bd4f169 AM |
6601 | } |
| 6602 | ||
| 65f38f15 AM |
6603 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6604 | section being removed. */ | |
| 5bd4f169 | 6605 | |
| b34976b6 | 6606 | static bfd_boolean |
| 4ce794b7 AM |
6607 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6608 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6609 | { |
| 411e1bfb | 6610 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6611 | Elf_Internal_Shdr *symtab_hdr; |
| 6612 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6613 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6614 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6615 | |
| 0e1862bb | 6616 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6617 | return TRUE; |
| 6618 | ||
| 680a3378 AM |
6619 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6620 | return TRUE; | |
| 6621 | ||
| ec338859 AM |
6622 | elf_section_data (sec)->local_dynrel = NULL; |
| 6623 | ||
| 411e1bfb | 6624 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6625 | if (htab == NULL) |
| 6626 | return FALSE; | |
| 6627 | ||
| 0ffa91dd | 6628 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6629 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6630 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6631 | |
| 6632 | relend = relocs + sec->reloc_count; | |
| 6633 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6634 | { |
| 6635 | unsigned long r_symndx; | |
| 04c9666a | 6636 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6637 | struct elf_link_hash_entry *h = NULL; |
| 8dea77f0 | 6638 | struct plt_entry **plt_list = NULL; |
| f961d9dd | 6639 | unsigned char tls_type = 0; |
| 5bd4f169 | 6640 | |
| a33d1f77 | 6641 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6642 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6643 | if (r_symndx >= symtab_hdr->sh_info) |
| 6644 | { | |
| 6645 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6646 | struct elf_dyn_relocs **pp; |
| 6647 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6648 | |
| 6649 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6650 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6651 | eh = (struct ppc_link_hash_entry *) h; |
| 6652 | ||
| 6653 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6654 | if (p->sec == sec) | |
| 6655 | { | |
| 6656 | /* Everything must go for SEC. */ | |
| 6657 | *pp = p->next; | |
| 6658 | break; | |
| 6659 | } | |
| 6660 | } | |
| 6661 | ||
| a33d1f77 AM |
6662 | switch (r_type) |
| 6663 | { | |
| 411e1bfb AM |
6664 | case R_PPC64_GOT_TLSLD16: |
| 6665 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6666 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6667 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6668 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6669 | goto dogot; |
| 6670 | ||
| 6671 | case R_PPC64_GOT_TLSGD16: | |
| 6672 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6673 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6674 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6675 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6676 | goto dogot; |
| 6677 | ||
| 6678 | case R_PPC64_GOT_TPREL16_DS: | |
| 6679 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6680 | case R_PPC64_GOT_TPREL16_HI: | |
| 6681 | case R_PPC64_GOT_TPREL16_HA: | |
| 6682 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6683 | goto dogot; | |
| 6684 | ||
| 6685 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6686 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6687 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6688 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6689 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6690 | goto dogot; | |
| 6691 | ||
| a33d1f77 AM |
6692 | case R_PPC64_GOT16: |
| 6693 | case R_PPC64_GOT16_DS: | |
| 6694 | case R_PPC64_GOT16_HA: | |
| 6695 | case R_PPC64_GOT16_HI: | |
| 6696 | case R_PPC64_GOT16_LO: | |
| 6697 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6698 | dogot: |
| 6699 | { | |
| 6700 | struct got_entry *ent; | |
| 6701 | ||
| 58ac9f71 AM |
6702 | if (h != NULL) |
| 6703 | ent = h->got.glist; | |
| 411e1bfb AM |
6704 | else |
| 6705 | ent = local_got_ents[r_symndx]; | |
| 6706 | ||
| 6707 | for (; ent != NULL; ent = ent->next) | |
| 6708 | if (ent->addend == rel->r_addend | |
| e717da7e | 6709 | && ent->owner == abfd |
| 411e1bfb AM |
6710 | && ent->tls_type == tls_type) |
| 6711 | break; | |
| 6712 | if (ent == NULL) | |
| 6713 | abort (); | |
| 6714 | if (ent->got.refcount > 0) | |
| 6715 | ent->got.refcount -= 1; | |
| 6716 | } | |
| 8dea77f0 AM |
6717 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| 6718 | plt_list = &h->plt.plist; | |
| a33d1f77 | 6719 | break; |
| 65f38f15 | 6720 | |
| a33d1f77 AM |
6721 | case R_PPC64_PLT16_HA: |
| 6722 | case R_PPC64_PLT16_HI: | |
| 6723 | case R_PPC64_PLT16_LO: | |
| 6724 | case R_PPC64_PLT32: | |
| 6725 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6726 | case R_PPC64_REL14: |
| 6727 | case R_PPC64_REL14_BRNTAKEN: | |
| 6728 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6729 | case R_PPC64_REL24: |
| 58ac9f71 | 6730 | if (h != NULL) |
| cbf95972 AM |
6731 | plt_list = &h->plt.plist; |
| 6732 | else if (local_got_ents != NULL) | |
| 6733 | { | |
| 6734 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6735 | (local_got_ents + symtab_hdr->sh_info); | |
| 6736 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 6737 | (local_plt + symtab_hdr->sh_info); | |
| 6738 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6739 | plt_list = local_plt + r_symndx; | |
| 6740 | } | |
| 8dea77f0 | 6741 | break; |
| 411e1bfb | 6742 | |
| 8dea77f0 AM |
6743 | case R_PPC64_ADDR64: |
| 6744 | case R_PPC64_ADDR16: | |
| 6745 | case R_PPC64_ADDR16_DS: | |
| 6746 | case R_PPC64_ADDR16_HA: | |
| 6747 | case R_PPC64_ADDR16_HI: | |
| 6748 | case R_PPC64_ADDR16_HIGH: | |
| 6749 | case R_PPC64_ADDR16_HIGHA: | |
| 6750 | case R_PPC64_ADDR16_HIGHER: | |
| 6751 | case R_PPC64_ADDR16_HIGHERA: | |
| 6752 | case R_PPC64_ADDR16_HIGHEST: | |
| 6753 | case R_PPC64_ADDR16_HIGHESTA: | |
| 6754 | case R_PPC64_ADDR16_LO: | |
| 6755 | case R_PPC64_ADDR16_LO_DS: | |
| 6756 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 | |
| 6757 | && rel->r_addend == 0) | |
| 6758 | plt_list = &h->plt.plist; | |
| e86ce104 | 6759 | break; |
| 5d1634d7 | 6760 | |
| a33d1f77 AM |
6761 | default: |
| 6762 | break; | |
| 6763 | } | |
| 8dea77f0 AM |
6764 | if (plt_list != NULL) |
| 6765 | { | |
| 6766 | struct plt_entry *ent; | |
| 6767 | ||
| 6768 | for (ent = *plt_list; ent != NULL; ent = ent->next) | |
| 6769 | if (ent->addend == rel->r_addend) | |
| 6770 | break; | |
| 6771 | if (ent != NULL && ent->plt.refcount > 0) | |
| 6772 | ent->plt.refcount -= 1; | |
| 6773 | } | |
| a33d1f77 | 6774 | } |
| b34976b6 | 6775 | return TRUE; |
| 5bd4f169 AM |
6776 | } |
| 6777 | ||
| deb0e272 AM |
6778 | /* The maximum size of .sfpr. */ |
| 6779 | #define SFPR_MAX (218*4) | |
| 6780 | ||
| 6781 | struct sfpr_def_parms | |
| 6782 | { | |
| 699733f6 AM |
6783 | const char name[12]; |
| 6784 | unsigned char lo, hi; | |
| deb0e272 AM |
6785 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6786 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6787 | }; | |
| 6788 | ||
| a4b6fadd AM |
6789 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6790 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6791 | instead. */ | |
| deb0e272 | 6792 | |
| 4dfe6ac6 | 6793 | static bfd_boolean |
| a4b6fadd AM |
6794 | sfpr_define (struct bfd_link_info *info, |
| 6795 | const struct sfpr_def_parms *parm, | |
| 6796 | asection *stub_sec) | |
| deb0e272 AM |
6797 | { |
| 6798 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6799 | unsigned int i; | |
| 6800 | size_t len = strlen (parm->name); | |
| 6801 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6802 | char sym[16]; |
| deb0e272 | 6803 | |
| 4dfe6ac6 NC |
6804 | if (htab == NULL) |
| 6805 | return FALSE; | |
| 6806 | ||
| deb0e272 AM |
6807 | memcpy (sym, parm->name, len); |
| 6808 | sym[len + 2] = 0; | |
| 6809 | ||
| 6810 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6811 | { | |
| a4b6fadd | 6812 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6813 | |
| 6814 | sym[len + 0] = i / 10 + '0'; | |
| 6815 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6816 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6817 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6818 | if (stub_sec != NULL) |
| deb0e272 | 6819 | { |
| a4b6fadd AM |
6820 | if (h != NULL |
| 6821 | && h->elf.root.type == bfd_link_hash_defined | |
| 6822 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6823 | { | |
| 6824 | struct elf_link_hash_entry *s; | |
| 6825 | char buf[32]; | |
| 6826 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6827 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6828 | if (s == NULL) | |
| 6829 | return FALSE; | |
| 6830 | if (s->root.type == bfd_link_hash_new | |
| 6831 | || (s->root.type = bfd_link_hash_defined | |
| 6832 | && s->root.u.def.section == stub_sec)) | |
| 6833 | { | |
| 6834 | s->root.type = bfd_link_hash_defined; | |
| 6835 | s->root.u.def.section = stub_sec; | |
| 6836 | s->root.u.def.value = (stub_sec->size | |
| 6837 | + h->elf.root.u.def.value); | |
| 6838 | s->ref_regular = 1; | |
| 6839 | s->def_regular = 1; | |
| 6840 | s->ref_regular_nonweak = 1; | |
| 6841 | s->forced_local = 1; | |
| 6842 | s->non_elf = 0; | |
| 6843 | s->root.linker_def = 1; | |
| 6844 | } | |
| 6845 | } | |
| 6846 | continue; | |
| 6847 | } | |
| 6848 | if (h != NULL) | |
| 6849 | { | |
| 6850 | h->save_res = 1; | |
| 6851 | if (!h->elf.def_regular) | |
| deb0e272 | 6852 | { |
| a4b6fadd AM |
6853 | h->elf.root.type = bfd_link_hash_defined; |
| 6854 | h->elf.root.u.def.section = htab->sfpr; | |
| 6855 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6856 | h->elf.type = STT_FUNC; | |
| 6857 | h->elf.def_regular = 1; | |
| b32547cd | 6858 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6859 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6860 | writing = TRUE; | |
| deb0e272 | 6861 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6862 | { |
| 6863 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6864 | if (htab->sfpr->contents == NULL) | |
| 6865 | return FALSE; | |
| 6866 | } | |
| deb0e272 AM |
6867 | } |
| 6868 | } | |
| 6869 | if (writing) | |
| 6870 | { | |
| 6871 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6872 | if (i != parm->hi) | |
| 6873 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6874 | else | |
| 6875 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6876 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6877 | } | |
| 6878 | } | |
| 6879 | ||
| 6880 | return TRUE; | |
| 6881 | } | |
| 6882 | ||
| 6883 | static bfd_byte * | |
| 6884 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6885 | { | |
| 6886 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6887 | return p + 4; | |
| 6888 | } | |
| 6889 | ||
| 6890 | static bfd_byte * | |
| 6891 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6892 | { | |
| 6893 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6894 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6895 | p = p + 4; |
| 6896 | bfd_put_32 (abfd, BLR, p); | |
| 6897 | return p + 4; | |
| 6898 | } | |
| 6899 | ||
| 6900 | static bfd_byte * | |
| 6901 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6902 | { | |
| 6903 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6904 | return p + 4; | |
| 6905 | } | |
| 6906 | ||
| 6907 | static bfd_byte * | |
| 6908 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6909 | { | |
| a078d95a | 6910 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6911 | p = p + 4; |
| 6912 | p = restgpr0 (abfd, p, r); | |
| 6913 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6914 | p = p + 4; | |
| 6915 | if (r == 29) | |
| 6916 | { | |
| 6917 | p = restgpr0 (abfd, p, 30); | |
| 6918 | p = restgpr0 (abfd, p, 31); | |
| 6919 | } | |
| 6920 | bfd_put_32 (abfd, BLR, p); | |
| 6921 | return p + 4; | |
| 6922 | } | |
| 6923 | ||
| 6924 | static bfd_byte * | |
| 6925 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6926 | { | |
| 6927 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6928 | return p + 4; | |
| 6929 | } | |
| 6930 | ||
| 6931 | static bfd_byte * | |
| 6932 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6933 | { | |
| 6934 | p = savegpr1 (abfd, p, r); | |
| 6935 | bfd_put_32 (abfd, BLR, p); | |
| 6936 | return p + 4; | |
| 6937 | } | |
| 6938 | ||
| 6939 | static bfd_byte * | |
| 6940 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6941 | { | |
| 6942 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6943 | return p + 4; | |
| 6944 | } | |
| 6945 | ||
| 6946 | static bfd_byte * | |
| 6947 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6948 | { | |
| 6949 | p = restgpr1 (abfd, p, r); | |
| 6950 | bfd_put_32 (abfd, BLR, p); | |
| 6951 | return p + 4; | |
| 6952 | } | |
| 6953 | ||
| 6954 | static bfd_byte * | |
| 6955 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6956 | { | |
| 6957 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6958 | return p + 4; | |
| 6959 | } | |
| 6960 | ||
| 6961 | static bfd_byte * | |
| 6962 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6963 | { | |
| 6964 | p = savefpr (abfd, p, r); | |
| a078d95a | 6965 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6966 | p = p + 4; |
| 6967 | bfd_put_32 (abfd, BLR, p); | |
| 6968 | return p + 4; | |
| 6969 | } | |
| 6970 | ||
| 6971 | static bfd_byte * | |
| 6972 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6973 | { | |
| 6974 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6975 | return p + 4; | |
| 6976 | } | |
| 6977 | ||
| 6978 | static bfd_byte * | |
| 6979 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6980 | { | |
| a078d95a | 6981 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6982 | p = p + 4; |
| 6983 | p = restfpr (abfd, p, r); | |
| 6984 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6985 | p = p + 4; | |
| 6986 | if (r == 29) | |
| 6987 | { | |
| 6988 | p = restfpr (abfd, p, 30); | |
| 6989 | p = restfpr (abfd, p, 31); | |
| 6990 | } | |
| 6991 | bfd_put_32 (abfd, BLR, p); | |
| 6992 | return p + 4; | |
| 6993 | } | |
| 6994 | ||
| 6995 | static bfd_byte * | |
| 6996 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6997 | { | |
| 6998 | p = savefpr (abfd, p, r); | |
| 6999 | bfd_put_32 (abfd, BLR, p); | |
| 7000 | return p + 4; | |
| 7001 | } | |
| 7002 | ||
| 7003 | static bfd_byte * | |
| 7004 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 7005 | { | |
| 7006 | p = restfpr (abfd, p, r); | |
| 7007 | bfd_put_32 (abfd, BLR, p); | |
| 7008 | return p + 4; | |
| 7009 | } | |
| 7010 | ||
| 7011 | static bfd_byte * | |
| 7012 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 7013 | { | |
| 7014 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 7015 | p = p + 4; | |
| 7016 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 7017 | return p + 4; | |
| 7018 | } | |
| 7019 | ||
| 7020 | static bfd_byte * | |
| 7021 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 7022 | { | |
| 7023 | p = savevr (abfd, p, r); | |
| 7024 | bfd_put_32 (abfd, BLR, p); | |
| 7025 | return p + 4; | |
| 7026 | } | |
| 7027 | ||
| 7028 | static bfd_byte * | |
| 7029 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 7030 | { | |
| 7031 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 7032 | p = p + 4; | |
| 7033 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 7034 | return p + 4; | |
| 7035 | } | |
| 7036 | ||
| 7037 | static bfd_byte * | |
| 7038 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 7039 | { | |
| 7040 | p = restvr (abfd, p, r); | |
| 7041 | bfd_put_32 (abfd, BLR, p); | |
| 7042 | return p + 4; | |
| 7043 | } | |
| 7044 | ||
| e86ce104 AM |
7045 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 7046 | information on function code symbol entries to their corresponding | |
| 7047 | function descriptor symbol entries. */ | |
| deb0e272 | 7048 | |
| b34976b6 | 7049 | static bfd_boolean |
| 4ce794b7 | 7050 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 7051 | { |
| e86ce104 | 7052 | struct bfd_link_info *info; |
| 65f38f15 | 7053 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
7054 | struct ppc_link_hash_entry *fh; |
| 7055 | struct ppc_link_hash_entry *fdh; | |
| 7056 | bfd_boolean force_local; | |
| 5bd4f169 | 7057 | |
| 50bc7936 AM |
7058 | fh = (struct ppc_link_hash_entry *) h; |
| 7059 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 7060 | return TRUE; |
| e86ce104 | 7061 | |
| 8c5b4e52 AM |
7062 | if (!fh->is_func) |
| 7063 | return TRUE; | |
| 7064 | ||
| 7065 | if (fh->elf.root.root.string[0] != '.' | |
| 7066 | || fh->elf.root.root.string[1] == '\0') | |
| 7067 | return TRUE; | |
| 7068 | ||
| 4ce794b7 | 7069 | info = inf; |
| 65f38f15 | 7070 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
7071 | if (htab == NULL) |
| 7072 | return FALSE; | |
| 5bd4f169 | 7073 | |
| 8c5b4e52 AM |
7074 | /* Find the corresponding function descriptor symbol. */ |
| 7075 | fdh = lookup_fdh (fh, htab); | |
| 7076 | ||
| c09bdfe5 AM |
7077 | /* Resolve undefined references to dot-symbols as the value |
| 7078 | in the function descriptor, if we have one in a regular object. | |
| 7079 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 7080 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
7081 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 7082 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 7083 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 7084 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
7085 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 7086 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 7087 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 7088 | &fh->elf.root.u.def.section, |
| aef36ac1 | 7089 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 7090 | { |
| b31867b6 | 7091 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 7092 | fh->elf.forced_local = 1; |
| b31867b6 AM |
7093 | fh->elf.def_regular = fdh->elf.def_regular; |
| 7094 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
7095 | } |
| 7096 | ||
| 8c5b4e52 AM |
7097 | if (!fh->elf.dynamic) |
| 7098 | { | |
| 7099 | struct plt_entry *ent; | |
| 5bd4f169 | 7100 | |
| 8c5b4e52 AM |
7101 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 7102 | if (ent->plt.refcount > 0) | |
| 7103 | break; | |
| 7104 | if (ent == NULL) | |
| 7105 | return TRUE; | |
| 7106 | } | |
| 5bd4f169 | 7107 | |
| 8c5b4e52 | 7108 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 7109 | if (fdh == NULL |
| 0e1862bb | 7110 | && !bfd_link_executable (info) |
| 50bc7936 AM |
7111 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 7112 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 7113 | { | |
| 908b32fc | 7114 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
7115 | if (fdh == NULL) |
| 7116 | return FALSE; | |
| 50bc7936 | 7117 | } |
| 648cca2c | 7118 | |
| 8c5b4e52 | 7119 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
7120 | if (fdh != NULL |
| 7121 | && fdh->fake | |
| 8c5b4e52 AM |
7122 | && (fh->elf.root.type == bfd_link_hash_defined |
| 7123 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 7124 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 7125 | |
| 8c5b4e52 AM |
7126 | /* Transfer dynamic linking information to the function descriptor. */ |
| 7127 | if (fdh != NULL) | |
| 7128 | { | |
| f5385ebf AM |
7129 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 7130 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 7131 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 7132 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
7133 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 7134 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 7135 | || fh->elf.type == STT_FUNC | |
| 7136 | || fh->elf.type == STT_GNU_IFUNC); | |
| 7137 | move_plt_plist (fh, fdh); | |
| 7138 | ||
| 7139 | if (!fdh->elf.forced_local | |
| 7140 | && fh->elf.dynindx != -1) | |
| 7141 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 7142 | return FALSE; | |
| e86ce104 AM |
7143 | } |
| 7144 | ||
| 50bc7936 AM |
7145 | /* Now that the info is on the function descriptor, clear the |
| 7146 | function code sym info. Any function code syms for which we | |
| 7147 | don't have a definition in a regular file, we force local. | |
| 7148 | This prevents a shared library from exporting syms that have | |
| 7149 | been imported from another library. Function code syms that | |
| 7150 | are really in the library we must leave global to prevent the | |
| 7151 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7152 | force_local = (!fh->elf.def_regular |
| 7153 | || fdh == NULL | |
| 7154 | || !fdh->elf.def_regular | |
| 7155 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7156 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7157 | ||
| b34976b6 | 7158 | return TRUE; |
| e86ce104 | 7159 | } |
| 40b8271b | 7160 | |
| a4b6fadd AM |
7161 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7162 | { | |
| 7163 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7164 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7165 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7166 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7167 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7168 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7169 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7170 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7171 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7172 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7173 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7174 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7175 | }; | |
| 7176 | ||
| e86ce104 | 7177 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7178 | this hook to a) provide some gcc support functions, and b) transfer |
| 7179 | dynamic linking information gathered so far on function code symbol | |
| 7180 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7181 | |
| b34976b6 | 7182 | static bfd_boolean |
| 4ce794b7 AM |
7183 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7184 | struct bfd_link_info *info) | |
| e86ce104 AM |
7185 | { |
| 7186 | struct ppc_link_hash_table *htab; | |
| 7187 | ||
| 7188 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7189 | if (htab == NULL) |
| 7190 | return FALSE; | |
| 7191 | ||
| b32547cd AM |
7192 | /* Provide any missing _save* and _rest* functions. */ |
| 7193 | if (htab->sfpr != NULL) | |
| 7194 | { | |
| 7195 | unsigned int i; | |
| 7196 | ||
| 7197 | htab->sfpr->size = 0; | |
| 7198 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7199 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7200 | return FALSE; | |
| 7201 | if (htab->sfpr->size == 0) | |
| 7202 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7203 | } | |
| 7204 | ||
| 7205 | if (bfd_link_relocatable (info)) | |
| 7206 | return TRUE; | |
| 7207 | ||
| 7208 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7209 | { |
| 7210 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7211 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7212 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7213 | if (!htab->elf.hgot->def_regular |
| 7214 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7215 | { | |
| 7216 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7217 | htab->elf.hgot->root.u.def.value = 0; | |
| 7218 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7219 | htab->elf.hgot->def_regular = 1; | |
| 7220 | htab->elf.hgot->root.linker_def = 1; | |
| 7221 | } | |
| dba6fa9b | 7222 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7223 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7224 | | STV_HIDDEN); | |
| 7225 | } | |
| c66bb0ee | 7226 | |
| 8c5b4e52 AM |
7227 | if (htab->need_func_desc_adj) |
| 7228 | { | |
| 7229 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7230 | htab->need_func_desc_adj = 0; | |
| 7231 | } | |
| 805fc799 | 7232 | |
| b34976b6 | 7233 | return TRUE; |
| e86ce104 AM |
7234 | } |
| 7235 | ||
| 8a2058b5 AM |
7236 | /* Return true if we have dynamic relocs against H that apply to |
| 7237 | read-only sections. */ | |
| a345bc8d AM |
7238 | |
| 7239 | static bfd_boolean | |
| 7240 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7241 | { | |
| 7242 | struct ppc_link_hash_entry *eh; | |
| 7243 | struct elf_dyn_relocs *p; | |
| 7244 | ||
| 7245 | eh = (struct ppc_link_hash_entry *) h; | |
| 7246 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7247 | { | |
| 7248 | asection *s = p->sec->output_section; | |
| 7249 | ||
| 7250 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7251 | return TRUE; | |
| 7252 | } | |
| 7253 | return FALSE; | |
| 7254 | } | |
| 7255 | ||
| d311bc8b AM |
7256 | /* Return true if we have dynamic relocs against H or any of its weak |
| 7257 | aliases, that apply to read-only sections. */ | |
| 7258 | ||
| 7259 | static bfd_boolean | |
| 7260 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7261 | { | |
| 7262 | struct ppc_link_hash_entry *eh; | |
| 7263 | ||
| 7264 | eh = (struct ppc_link_hash_entry *) h; | |
| 7265 | do | |
| 7266 | { | |
| 7267 | if (readonly_dynrelocs (&eh->elf)) | |
| 7268 | return TRUE; | |
| 7269 | eh = eh->weakref; | |
| 7270 | } while (eh != NULL && &eh->elf != h); | |
| 7271 | ||
| 7272 | return FALSE; | |
| 7273 | } | |
| 8a2058b5 | 7274 | |
| 8a9e8e72 AM |
7275 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7276 | ||
| 7277 | static bfd_boolean | |
| 7278 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7279 | { | |
| 7280 | struct elf_dyn_relocs *p; | |
| 7281 | ||
| 7282 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7283 | if (p->pc_count != 0) | |
| 7284 | return TRUE; | |
| 7285 | return FALSE; | |
| 7286 | } | |
| 7287 | ||
| 8a2058b5 AM |
7288 | /* Return true if a global entry stub will be created for H. Valid |
| 7289 | for ELFv2 before plt entries have been allocated. */ | |
| 7290 | ||
| 7291 | static bfd_boolean | |
| 7292 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7293 | { | |
| 7294 | struct plt_entry *pent; | |
| 7295 | ||
| 7296 | if (!h->pointer_equality_needed | |
| 7297 | || h->def_regular) | |
| 7298 | return FALSE; | |
| 7299 | ||
| 7300 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7301 | if (pent->plt.refcount > 0 | |
| 7302 | && pent->addend == 0) | |
| 7303 | return TRUE; | |
| 7304 | ||
| 7305 | return FALSE; | |
| 7306 | } | |
| 7307 | ||
| e86ce104 AM |
7308 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7309 | regular object. The current definition is in some section of the | |
| 7310 | dynamic object, but we're not including those sections. We have to | |
| 7311 | change the definition to something the rest of the link can | |
| 7312 | understand. */ | |
| 7313 | ||
| b34976b6 | 7314 | static bfd_boolean |
| 4ce794b7 AM |
7315 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7316 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7317 | { |
| 7318 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7319 | asection *s, *srel; |
| e86ce104 AM |
7320 | |
| 7321 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7322 | if (htab == NULL) |
| 7323 | return FALSE; | |
| e86ce104 AM |
7324 | |
| 7325 | /* Deal with function syms. */ | |
| 7326 | if (h->type == STT_FUNC | |
| e054468f | 7327 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7328 | || h->needs_plt) |
| e86ce104 AM |
7329 | { |
| 7330 | /* Clear procedure linkage table information for any symbol that | |
| 7331 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7332 | struct plt_entry *ent; |
| 7333 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7334 | if (ent->plt.refcount > 0) | |
| 7335 | break; | |
| 8387904d | 7336 | if (ent == NULL |
| e054468f AM |
7337 | || (h->type != STT_GNU_IFUNC |
| 7338 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 21d68fcd | 7339 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))) |
| a4b6fadd | 7340 | || ((struct ppc_link_hash_entry *) h)->save_res) |
| 40b8271b | 7341 | { |
| 411e1bfb | 7342 | h->plt.plist = NULL; |
| f5385ebf | 7343 | h->needs_plt = 0; |
| d1eca1e4 | 7344 | h->pointer_equality_needed = 0; |
| 40b8271b | 7345 | } |
| 8a2058b5 | 7346 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7347 | { |
| d1eca1e4 AM |
7348 | /* Taking a function's address in a read/write section |
| 7349 | doesn't require us to define the function symbol in the | |
| 7350 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7351 | be used instead. The reason we prefer a few more dynamic |
| 7352 | relocs is that calling via a global entry stub costs a | |
| 7353 | few more instructions, and pointer_equality_needed causes | |
| 7354 | extra work in ld.so when resolving these symbols. */ | |
| 7355 | if (global_entry_stub (h) | |
| d311bc8b | 7356 | && !alias_readonly_dynrelocs (h)) |
| d1eca1e4 AM |
7357 | { |
| 7358 | h->pointer_equality_needed = 0; | |
| 8a2058b5 AM |
7359 | /* After adjust_dynamic_symbol, non_got_ref set in |
| 7360 | the non-pic case means that dyn_relocs for this | |
| 7361 | symbol should be discarded. */ | |
| d1eca1e4 AM |
7362 | h->non_got_ref = 0; |
| 7363 | } | |
| 7364 | ||
| a345bc8d AM |
7365 | /* If making a plt entry, then we don't need copy relocs. */ |
| 7366 | return TRUE; | |
| 7367 | } | |
| 5bd4f169 | 7368 | } |
| bbd7ec4a | 7369 | else |
| 411e1bfb | 7370 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7371 | |
| 7372 | /* If this is a weak symbol, and there is a real definition, the | |
| 7373 | processor independent code will have arranged for us to see the | |
| 7374 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7375 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7376 | { |
| f6e332e6 AM |
7377 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7378 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7379 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7380 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7381 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7382 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7383 | return TRUE; |
| 5bd4f169 AM |
7384 | } |
| 7385 | ||
| 5bd4f169 AM |
7386 | /* If we are creating a shared library, we must presume that the |
| 7387 | only references to the symbol are via the global offset table. | |
| 7388 | For such cases we need not do anything here; the relocations will | |
| 7389 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7390 | if (bfd_link_pic (info)) |
| b34976b6 | 7391 | return TRUE; |
| 5bd4f169 | 7392 | |
| 65f38f15 AM |
7393 | /* If there are no references to this symbol that do not use the |
| 7394 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7395 | if (!h->non_got_ref) |
| b34976b6 | 7396 | return TRUE; |
| 65f38f15 | 7397 | |
| b186458a | 7398 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7399 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7400 | |
| d93d1c80 AM |
7401 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7402 | || info->nocopyreloc | |
| a127494f | 7403 | |
| d93d1c80 AM |
7404 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7405 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| d311bc8b | 7406 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7407 | |
| d93d1c80 AM |
7408 | /* Protected variables do not work with .dynbss. The copy in |
| 7409 | .dynbss won't be used by the shared library with the protected | |
| 7410 | definition for the variable. Text relocations are preferable | |
| 7411 | to an incorrect program. */ | |
| 7412 | || h->protected_def) | |
| a127494f AM |
7413 | { |
| 7414 | h->non_got_ref = 0; | |
| 7415 | return TRUE; | |
| 7416 | } | |
| 7417 | ||
| 5d35169e | 7418 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7419 | { |
| 7420 | /* We should never get here, but unfortunately there are versions | |
| 7421 | of gcc out there that improperly (for this ABI) put initialized | |
| 7422 | function pointers, vtable refs and suchlike in read-only | |
| 7423 | sections. Allow them to proceed, but warn that this might | |
| 7424 | break at runtime. */ | |
| 25f53a85 | 7425 | info->callbacks->einfo |
| bc30df16 | 7426 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7427 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7428 | h->root.root.string); |
| 7429 | } | |
| 5d35169e AM |
7430 | |
| 7431 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7432 | is not a function. */ | |
| 7433 | ||
| 5bd4f169 AM |
7434 | /* We must allocate the symbol in our .dynbss section, which will |
| 7435 | become part of the .bss section of the executable. There will be | |
| 7436 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7437 | object will contain position independent code, so all references | |
| 7438 | from the dynamic object to this symbol will go through the global | |
| 7439 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7440 | determine the address it must put in the global offset table, so | |
| 7441 | both the dynamic object and the regular object will refer to the | |
| 7442 | same memory location for the variable. */ | |
| 5bd4f169 | 7443 | |
| 04c9666a AM |
7444 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7445 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7446 | runtime process image. We need to remember the offset into the |
| 7447 | .rela.bss section we are going to use. */ | |
| 5474d94f AM |
7448 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7449 | { | |
| 7450 | s = htab->elf.sdynrelro; | |
| 7451 | srel = htab->elf.sreldynrelro; | |
| 7452 | } | |
| 7453 | else | |
| 7454 | { | |
| 7455 | s = htab->elf.sdynbss; | |
| 7456 | srel = htab->elf.srelbss; | |
| 7457 | } | |
| 1d7e9d18 | 7458 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7459 | { |
| 5474d94f | 7460 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7461 | h->needs_copy = 1; |
| 5bd4f169 AM |
7462 | } |
| 7463 | ||
| 6cabe1ea | 7464 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7465 | } |
| 7466 | ||
| e86ce104 AM |
7467 | /* If given a function descriptor symbol, hide both the function code |
| 7468 | sym and the descriptor. */ | |
| 7469 | static void | |
| 4ce794b7 AM |
7470 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7471 | struct elf_link_hash_entry *h, | |
| 7472 | bfd_boolean force_local) | |
| e86ce104 | 7473 | { |
| 34814b9f | 7474 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7475 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7476 | ||
| 34814b9f AM |
7477 | eh = (struct ppc_link_hash_entry *) h; |
| 7478 | if (eh->is_func_descriptor) | |
| e86ce104 | 7479 | { |
| 34814b9f | 7480 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7481 | |
| 721956f4 | 7482 | if (fh == NULL) |
| d1329ca3 AM |
7483 | { |
| 7484 | const char *p, *q; | |
| b8ac2841 | 7485 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7486 | char save; |
| 7487 | ||
| 7488 | /* We aren't supposed to use alloca in BFD because on | |
| 7489 | systems which do not have alloca the version in libiberty | |
| 7490 | calls xmalloc, which might cause the program to crash | |
| 7491 | when it runs out of memory. This function doesn't have a | |
| 7492 | return status, so there's no way to gracefully return an | |
| 7493 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7494 | accessed; It's either a string in an ELF string table, |
| 7495 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7496 | |
| 34814b9f | 7497 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7498 | save = *p; |
| 7499 | *(char *) p = '.'; | |
| 34814b9f | 7500 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7501 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7502 | *(char *) p = save; |
| 7503 | ||
| 7504 | /* Unfortunately, if it so happens that the string we were | |
| 7505 | looking for was allocated immediately before this string, | |
| 7506 | then we overwrote the string terminator. That's the only | |
| 7507 | reason the lookup should fail. */ | |
| 7508 | if (fh == NULL) | |
| 7509 | { | |
| 34814b9f AM |
7510 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7511 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7512 | --q, --p; |
| 34814b9f AM |
7513 | if (q < eh->elf.root.root.string && *p == '.') |
| 7514 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7515 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7516 | } |
| 7517 | if (fh != NULL) | |
| 7518 | { | |
| 34814b9f AM |
7519 | eh->oh = fh; |
| 7520 | fh->oh = eh; | |
| d1329ca3 AM |
7521 | } |
| 7522 | } | |
| e86ce104 | 7523 | if (fh != NULL) |
| 34814b9f | 7524 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7525 | } |
| 7526 | } | |
| 7527 | ||
| 411e1bfb | 7528 | static bfd_boolean |
| 8843416a AM |
7529 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7530 | Elf_Internal_Sym **symp, | |
| 7531 | asection **symsecp, | |
| f961d9dd | 7532 | unsigned char **tls_maskp, |
| 8843416a AM |
7533 | Elf_Internal_Sym **locsymsp, |
| 7534 | unsigned long r_symndx, | |
| 7535 | bfd *ibfd) | |
| 411e1bfb | 7536 | { |
| 0ffa91dd | 7537 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7538 | |
| 7539 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7540 | { | |
| 7541 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7542 | struct elf_link_hash_entry *h; | |
| 7543 | ||
| 7544 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7545 | h = elf_follow_link (h); |
| 411e1bfb AM |
7546 | |
| 7547 | if (hp != NULL) | |
| 7548 | *hp = h; | |
| 7549 | ||
| 7550 | if (symp != NULL) | |
| 7551 | *symp = NULL; | |
| 7552 | ||
| 7553 | if (symsecp != NULL) | |
| 7554 | { | |
| 7555 | asection *symsec = NULL; | |
| 7556 | if (h->root.type == bfd_link_hash_defined | |
| 7557 | || h->root.type == bfd_link_hash_defweak) | |
| 7558 | symsec = h->root.u.def.section; | |
| 7559 | *symsecp = symsec; | |
| 7560 | } | |
| 7561 | ||
| e7b938ca | 7562 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7563 | { |
| 7564 | struct ppc_link_hash_entry *eh; | |
| 7565 | ||
| 7566 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7567 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7568 | } |
| 7569 | } | |
| 7570 | else | |
| 7571 | { | |
| 7572 | Elf_Internal_Sym *sym; | |
| 7573 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7574 | ||
| 7575 | if (locsyms == NULL) | |
| 7576 | { | |
| 7577 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7578 | if (locsyms == NULL) | |
| 7579 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7580 | symtab_hdr->sh_info, | |
| 7581 | 0, NULL, NULL, NULL); | |
| 7582 | if (locsyms == NULL) | |
| 7583 | return FALSE; | |
| 7584 | *locsymsp = locsyms; | |
| 7585 | } | |
| 7586 | sym = locsyms + r_symndx; | |
| 7587 | ||
| 7588 | if (hp != NULL) | |
| 7589 | *hp = NULL; | |
| 7590 | ||
| 7591 | if (symp != NULL) | |
| 7592 | *symp = sym; | |
| 7593 | ||
| 7594 | if (symsecp != NULL) | |
| cb33740c | 7595 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7596 | |
| e7b938ca | 7597 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7598 | { |
| 7599 | struct got_entry **lgot_ents; | |
| f961d9dd | 7600 | unsigned char *tls_mask; |
| 411e1bfb | 7601 | |
| e7b938ca | 7602 | tls_mask = NULL; |
| 411e1bfb AM |
7603 | lgot_ents = elf_local_got_ents (ibfd); |
| 7604 | if (lgot_ents != NULL) | |
| 7605 | { | |
| e054468f AM |
7606 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7607 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7608 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7609 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7610 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7611 | } |
| e7b938ca | 7612 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7613 | } |
| 7614 | } | |
| 7615 | return TRUE; | |
| 7616 | } | |
| 7617 | ||
| e7b938ca | 7618 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7619 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7620 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7621 | |
| 7622 | static int | |
| f961d9dd | 7623 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7624 | unsigned long *toc_symndx, |
| 7625 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7626 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7627 | const Elf_Internal_Rela *rel, |
| 7628 | bfd *ibfd) | |
| 411e1bfb AM |
7629 | { |
| 7630 | unsigned long r_symndx; | |
| 0d4792f7 | 7631 | int next_r; |
| 411e1bfb AM |
7632 | struct elf_link_hash_entry *h; |
| 7633 | Elf_Internal_Sym *sym; | |
| 7634 | asection *sec; | |
| 7635 | bfd_vma off; | |
| 7636 | ||
| 7637 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7638 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7639 | return 0; |
| 411e1bfb | 7640 | |
| e7b938ca | 7641 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7642 | || sec == NULL |
| 6bee8834 | 7643 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7644 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7645 | return 1; |
| 411e1bfb AM |
7646 | |
| 7647 | /* Look inside a TOC section too. */ | |
| 7648 | if (h != NULL) | |
| 7649 | { | |
| 7650 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7651 | off = h->root.u.def.value; | |
| 7652 | } | |
| 7653 | else | |
| 7654 | off = sym->st_value; | |
| 7655 | off += rel->r_addend; | |
| 7656 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7657 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7658 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7659 | if (toc_symndx != NULL) |
| 7660 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7661 | if (toc_addend != NULL) |
| 7662 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7663 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7664 | return 0; | |
| 854b41e7 | 7665 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7666 | && (next_r == -1 || next_r == -2)) |
| 7667 | return 1 - next_r; | |
| 951fd09b | 7668 | return 1; |
| 411e1bfb AM |
7669 | } |
| 7670 | ||
| 3b421ab3 AM |
7671 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7672 | ||
| 7673 | static struct tocsave_entry * | |
| 7674 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7675 | enum insert_option insert, | |
| 7676 | Elf_Internal_Sym **local_syms, | |
| 7677 | const Elf_Internal_Rela *irela, | |
| 7678 | bfd *ibfd) | |
| 7679 | { | |
| 7680 | unsigned long r_indx; | |
| 7681 | struct elf_link_hash_entry *h; | |
| 7682 | Elf_Internal_Sym *sym; | |
| 7683 | struct tocsave_entry ent, *p; | |
| 7684 | hashval_t hash; | |
| 7685 | struct tocsave_entry **slot; | |
| 7686 | ||
| 7687 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7688 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7689 | return NULL; | |
| 7690 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7691 | { | |
| 4eca0228 | 7692 | _bfd_error_handler |
| 10463f39 | 7693 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7694 | return NULL; |
| 7695 | } | |
| 7696 | ||
| 7697 | if (h != NULL) | |
| 7698 | ent.offset = h->root.u.def.value; | |
| 7699 | else | |
| 7700 | ent.offset = sym->st_value; | |
| 7701 | ent.offset += irela->r_addend; | |
| 7702 | ||
| 7703 | hash = tocsave_htab_hash (&ent); | |
| 7704 | slot = ((struct tocsave_entry **) | |
| 7705 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7706 | if (slot == NULL) | |
| 7707 | return NULL; | |
| 7708 | ||
| 7709 | if (*slot == NULL) | |
| 7710 | { | |
| 7711 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7712 | if (p == NULL) | |
| 7713 | return NULL; | |
| 7714 | *p = ent; | |
| 7715 | *slot = p; | |
| 7716 | } | |
| 7717 | return *slot; | |
| 7718 | } | |
| 7719 | ||
| 754021d0 | 7720 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7721 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7722 | |
| 7723 | static bfd_boolean | |
| 7724 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7725 | { | |
| 7726 | struct ppc_link_hash_entry *eh; | |
| 7727 | asection *sym_sec; | |
| 74f0fb50 | 7728 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7729 | |
| 7730 | if (h->root.type == bfd_link_hash_indirect) | |
| 7731 | return TRUE; | |
| 7732 | ||
| 754021d0 AM |
7733 | if (h->root.type != bfd_link_hash_defined |
| 7734 | && h->root.type != bfd_link_hash_defweak) | |
| 7735 | return TRUE; | |
| 7736 | ||
| 7737 | eh = (struct ppc_link_hash_entry *) h; | |
| 7738 | if (eh->adjust_done) | |
| 7739 | return TRUE; | |
| 7740 | ||
| 7741 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7742 | opd = get_opd_info (sym_sec); |
| 7743 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7744 | { |
| 51aecdc5 | 7745 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7746 | if (adjust == -1) |
| 7747 | { | |
| 7748 | /* This entry has been deleted. */ | |
| b3fac117 | 7749 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7750 | if (dsec == NULL) |
| 7751 | { | |
| 7752 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7753 | if (discarded_section (dsec)) |
| 81688140 | 7754 | { |
| b3fac117 | 7755 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7756 | break; |
| 7757 | } | |
| 7758 | } | |
| 4025353c | 7759 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7760 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7761 | } |
| 7762 | else | |
| 7763 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7764 | eh->adjust_done = 1; |
| 7765 | } | |
| 7766 | return TRUE; | |
| 7767 | } | |
| 7768 | ||
| 8c1d1bb8 | 7769 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7770 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7771 | have already been determined. */ |
| 7772 | ||
| 7773 | static bfd_boolean | |
| 7774 | dec_dynrel_count (bfd_vma r_info, | |
| 7775 | asection *sec, | |
| 7776 | struct bfd_link_info *info, | |
| 7777 | Elf_Internal_Sym **local_syms, | |
| 7778 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7779 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7780 | { |
| 7781 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7782 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7783 | |
| 7784 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7785 | should be kept in sync with the code in check_relocs. */ | |
| 7786 | r_type = ELF64_R_TYPE (r_info); | |
| 7787 | switch (r_type) | |
| 7788 | { | |
| 7789 | default: | |
| 7790 | return TRUE; | |
| 7791 | ||
| 7792 | case R_PPC64_TPREL16: | |
| 7793 | case R_PPC64_TPREL16_LO: | |
| 7794 | case R_PPC64_TPREL16_HI: | |
| 7795 | case R_PPC64_TPREL16_HA: | |
| 7796 | case R_PPC64_TPREL16_DS: | |
| 7797 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7798 | case R_PPC64_TPREL16_HIGH: |
| 7799 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7800 | case R_PPC64_TPREL16_HIGHER: |
| 7801 | case R_PPC64_TPREL16_HIGHERA: | |
| 7802 | case R_PPC64_TPREL16_HIGHEST: | |
| 7803 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7804 | case R_PPC64_TPREL64: |
| 7805 | case R_PPC64_DTPMOD64: | |
| 7806 | case R_PPC64_DTPREL64: | |
| 7807 | case R_PPC64_ADDR64: | |
| 7808 | case R_PPC64_REL30: | |
| 7809 | case R_PPC64_REL32: | |
| 7810 | case R_PPC64_REL64: | |
| 7811 | case R_PPC64_ADDR14: | |
| 7812 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7813 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7814 | case R_PPC64_ADDR16: | |
| 7815 | case R_PPC64_ADDR16_DS: | |
| 7816 | case R_PPC64_ADDR16_HA: | |
| 7817 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7818 | case R_PPC64_ADDR16_HIGH: |
| 7819 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7820 | case R_PPC64_ADDR16_HIGHER: |
| 7821 | case R_PPC64_ADDR16_HIGHERA: | |
| 7822 | case R_PPC64_ADDR16_HIGHEST: | |
| 7823 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7824 | case R_PPC64_ADDR16_LO: | |
| 7825 | case R_PPC64_ADDR16_LO_DS: | |
| 7826 | case R_PPC64_ADDR24: | |
| 7827 | case R_PPC64_ADDR32: | |
| 7828 | case R_PPC64_UADDR16: | |
| 7829 | case R_PPC64_UADDR32: | |
| 7830 | case R_PPC64_UADDR64: | |
| 7831 | case R_PPC64_TOC: | |
| 7832 | break; | |
| 7833 | } | |
| 7834 | ||
| 7835 | if (local_syms != NULL) | |
| 7836 | { | |
| 7837 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7838 | bfd *ibfd = sec->owner; |
| 7839 | ||
| 7840 | r_symndx = ELF64_R_SYM (r_info); | |
| 7841 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7842 | return FALSE; | |
| 7843 | } | |
| 7844 | ||
| 0e1862bb | 7845 | if ((bfd_link_pic (info) |
| 1d483afe | 7846 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7847 | || (h != NULL |
| 198f1157 | 7848 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7849 | || h->root.type == bfd_link_hash_defweak |
| 7850 | || !h->def_regular)))) | |
| 7851 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7852 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7853 | && h != NULL |
| 7854 | && (h->root.type == bfd_link_hash_defweak | |
| 7855 | || !h->def_regular))) | |
| 7856 | ; | |
| 7857 | else | |
| 7858 | return TRUE; | |
| 7859 | ||
| 7860 | if (h != NULL) | |
| 6edfbbad | 7861 | { |
| 19e08130 AM |
7862 | struct elf_dyn_relocs *p; |
| 7863 | struct elf_dyn_relocs **pp; | |
| 7864 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7865 | ||
| 7866 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7867 | with local syms for a given section. Also, symbol flags are | |
| 7868 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7869 | report a dynreloc miscount. */ | |
| 7870 | if (*pp == NULL && info->gc_sections) | |
| 7871 | return TRUE; | |
| 7872 | ||
| 7873 | while ((p = *pp) != NULL) | |
| 60124e18 | 7874 | { |
| 19e08130 AM |
7875 | if (p->sec == sec) |
| 7876 | { | |
| 7877 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7878 | p->pc_count -= 1; | |
| 7879 | p->count -= 1; | |
| 7880 | if (p->count == 0) | |
| 7881 | *pp = p->next; | |
| 7882 | return TRUE; | |
| 7883 | } | |
| 7884 | pp = &p->next; | |
| 60124e18 | 7885 | } |
| 6edfbbad | 7886 | } |
| 19e08130 AM |
7887 | else |
| 7888 | { | |
| 7889 | struct ppc_dyn_relocs *p; | |
| 7890 | struct ppc_dyn_relocs **pp; | |
| 7891 | void *vpp; | |
| 7892 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7893 | |
| 19e08130 AM |
7894 | if (local_syms == NULL) |
| 7895 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7896 | if (sym_sec == NULL) | |
| 7897 | sym_sec = sec; | |
| c57da1a7 | 7898 | |
| 19e08130 AM |
7899 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7900 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7901 | ||
| 7902 | if (*pp == NULL && info->gc_sections) | |
| 7903 | return TRUE; | |
| 7904 | ||
| 7905 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7906 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7907 | { |
| 19e08130 AM |
7908 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7909 | { | |
| 7910 | p->count -= 1; | |
| 7911 | if (p->count == 0) | |
| 7912 | *pp = p->next; | |
| 7913 | return TRUE; | |
| 7914 | } | |
| 7915 | pp = &p->next; | |
| 8c1d1bb8 | 7916 | } |
| 8c1d1bb8 AM |
7917 | } |
| 7918 | ||
| 695344c0 | 7919 | /* xgettext:c-format */ |
| 8de848d8 | 7920 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7921 | sec->owner, sec); |
| 8c1d1bb8 AM |
7922 | bfd_set_error (bfd_error_bad_value); |
| 7923 | return FALSE; | |
| 7924 | } | |
| 7925 | ||
| 754021d0 AM |
7926 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7927 | only remove those associated with functions in discarded link-once | |
| 7928 | sections, or weakly defined functions that have been overridden. It | |
| 7929 | would be possible to remove many more entries for statically linked | |
| 7930 | applications. */ | |
| 7931 | ||
| b34976b6 | 7932 | bfd_boolean |
| e7d1c40c | 7933 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7934 | { |
| 7935 | bfd *ibfd; | |
| 754021d0 | 7936 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7937 | asection *need_pad = NULL; |
| e7d1c40c AM |
7938 | struct ppc_link_hash_table *htab; |
| 7939 | ||
| 7940 | htab = ppc_hash_table (info); | |
| 7941 | if (htab == NULL) | |
| 7942 | return FALSE; | |
| 1e2f5b6e | 7943 | |
| c72f2fb2 | 7944 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7945 | { |
| 7946 | asection *sec; | |
| 7947 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7948 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7949 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7950 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7951 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7952 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7953 | |
| 854b41e7 AM |
7954 | if (!is_ppc64_elf (ibfd)) |
| 7955 | continue; | |
| 7956 | ||
| 1e2f5b6e | 7957 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7958 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7959 | continue; |
| 7960 | ||
| dbaa2011 | 7961 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7962 | continue; |
| 7963 | ||
| 1e2f5b6e AM |
7964 | if (sec->output_section == bfd_abs_section_ptr) |
| 7965 | continue; | |
| 7966 | ||
| 7967 | /* Look through the section relocs. */ | |
| 7968 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7969 | continue; | |
| 7970 | ||
| 6cdc0ccc | 7971 | local_syms = NULL; |
| 0ffa91dd | 7972 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7973 | |
| 7974 | /* Read the relocations. */ | |
| 4ce794b7 | 7975 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7976 | info->keep_memory); |
| 1e2f5b6e | 7977 | if (relstart == NULL) |
| b34976b6 | 7978 | return FALSE; |
| 1e2f5b6e AM |
7979 | |
| 7980 | /* First run through the relocs to check they are sane, and to | |
| 7981 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7982 | need_edit = FALSE; |
| 51aecdc5 | 7983 | broken = FALSE; |
| 3f764659 | 7984 | need_pad = sec; |
| 1e2f5b6e | 7985 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7986 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7987 | { |
| 04c9666a | 7988 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7989 | unsigned long r_symndx; |
| 7990 | asection *sym_sec; | |
| 7991 | struct elf_link_hash_entry *h; | |
| 7992 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7993 | bfd_vma offset; |
| 1e2f5b6e | 7994 | |
| 51aecdc5 | 7995 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7996 | only interested in the reloc pointing to a function entry |
| 7997 | point. */ | |
| 51aecdc5 AM |
7998 | offset = rel->r_offset; |
| 7999 | if (rel + 1 == relend | |
| 8000 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
8001 | { |
| 8002 | /* If someone messes with .opd alignment then after a | |
| 8003 | "ld -r" we might have padding in the middle of .opd. | |
| 8004 | Also, there's nothing to prevent someone putting | |
| 8005 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 8006 | optimization for them! */ |
| 3f764659 | 8007 | broken_opd: |
| 4eca0228 | 8008 | _bfd_error_handler |
| d003868e | 8009 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 8010 | broken = TRUE; |
| 1e2f5b6e AM |
8011 | break; |
| 8012 | } | |
| 8013 | ||
| 50bc7936 AM |
8014 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 8015 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 8016 | { | |
| 4eca0228 | 8017 | _bfd_error_handler |
| 695344c0 | 8018 | /* xgettext:c-format */ |
| d003868e AM |
8019 | (_("%B: unexpected reloc type %u in .opd section"), |
| 8020 | ibfd, r_type); | |
| 51aecdc5 | 8021 | broken = TRUE; |
| 50bc7936 AM |
8022 | break; |
| 8023 | } | |
| 8024 | ||
| 1e2f5b6e | 8025 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
8026 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 8027 | r_symndx, ibfd)) | |
| 50bc7936 | 8028 | goto error_ret; |
| 1e2f5b6e AM |
8029 | |
| 8030 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 8031 | { | |
| 411e1bfb AM |
8032 | const char *sym_name; |
| 8033 | if (h != NULL) | |
| 8034 | sym_name = h->root.root.string; | |
| 8035 | else | |
| 26c61ae5 L |
8036 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 8037 | sym_sec); | |
| 411e1bfb | 8038 | |
| 4eca0228 | 8039 | _bfd_error_handler |
| 695344c0 | 8040 | /* xgettext:c-format */ |
| d003868e AM |
8041 | (_("%B: undefined sym `%s' in .opd section"), |
| 8042 | ibfd, sym_name); | |
| 51aecdc5 | 8043 | broken = TRUE; |
| 1e2f5b6e AM |
8044 | break; |
| 8045 | } | |
| 8046 | ||
| 51020317 AM |
8047 | /* opd entries are always for functions defined in the |
| 8048 | current input bfd. If the symbol isn't defined in the | |
| 8049 | input bfd, then we won't be using the function in this | |
| 8050 | bfd; It must be defined in a linkonce section in another | |
| 8051 | bfd, or is weak. It's also possible that we are | |
| 8052 | discarding the function due to a linker script /DISCARD/, | |
| 8053 | which we test for via the output_section. */ | |
| 8054 | if (sym_sec->owner != ibfd | |
| 8055 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 8056 | need_edit = TRUE; |
| 1e2f5b6e | 8057 | |
| 50bc7936 | 8058 | rel += 2; |
| 51aecdc5 AM |
8059 | if (rel + 1 == relend |
| 8060 | || (rel + 2 < relend | |
| 8061 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 8062 | ++rel; | |
| 8063 | ||
| 8064 | if (rel == relend) | |
| 3f764659 JJ |
8065 | { |
| 8066 | if (sec->size == offset + 24) | |
| 8067 | { | |
| 8068 | need_pad = NULL; | |
| 8069 | break; | |
| 8070 | } | |
| 51aecdc5 | 8071 | if (sec->size == offset + 16) |
| 3f764659 JJ |
8072 | { |
| 8073 | cnt_16b++; | |
| 8074 | break; | |
| 8075 | } | |
| 8076 | goto broken_opd; | |
| 8077 | } | |
| 3f764659 JJ |
8078 | else if (rel + 1 < relend |
| 8079 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 8080 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 8081 | { | |
| 51aecdc5 AM |
8082 | if (rel[0].r_offset == offset + 16) |
| 8083 | cnt_16b++; | |
| 8084 | else if (rel[0].r_offset != offset + 24) | |
| 8085 | goto broken_opd; | |
| 3f764659 JJ |
8086 | } |
| 8087 | else | |
| 8088 | goto broken_opd; | |
| 1e2f5b6e AM |
8089 | } |
| 8090 | ||
| e7d1c40c | 8091 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 8092 | |
| 51aecdc5 | 8093 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
8094 | { |
| 8095 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 8096 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 8097 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 8098 | bfd_byte *new_contents; |
| 74f0fb50 AM |
8099 | bfd_size_type amt; |
| 8100 | ||
| 983bddc8 | 8101 | new_contents = NULL; |
| 51aecdc5 | 8102 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 8103 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 8104 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
8105 | if (opd->adjust == NULL) |
| 8106 | return FALSE; | |
| 8107 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
8108 | |
| 8109 | /* This seems a waste of time as input .opd sections are all | |
| 8110 | zeros as generated by gcc, but I suppose there's no reason | |
| 8111 | this will always be so. We might start putting something in | |
| 8112 | the third word of .opd entries. */ | |
| 8113 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 8114 | { | |
| eea6121a AM |
8115 | bfd_byte *loc; |
| 8116 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 8117 | { |
| eea6121a AM |
8118 | if (loc != NULL) |
| 8119 | free (loc); | |
| 50bc7936 | 8120 | error_ret: |
| 6cdc0ccc AM |
8121 | if (local_syms != NULL |
| 8122 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8123 | free (local_syms); | |
| 6cdc0ccc AM |
8124 | if (elf_section_data (sec)->relocs != relstart) |
| 8125 | free (relstart); | |
| b34976b6 | 8126 | return FALSE; |
| 6cdc0ccc | 8127 | } |
| 1e2f5b6e AM |
8128 | sec->contents = loc; |
| 8129 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8130 | } | |
| 8131 | ||
| 8132 | elf_section_data (sec)->relocs = relstart; | |
| 8133 | ||
| 3f764659 | 8134 | new_contents = sec->contents; |
| 3f764659 JJ |
8135 | if (add_aux_fields) |
| 8136 | { | |
| 8137 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 8138 | if (new_contents == NULL) | |
| 8139 | return FALSE; | |
| 51aecdc5 | 8140 | need_pad = NULL; |
| 3f764659 | 8141 | } |
| b4f4e59f AM |
8142 | wptr = new_contents; |
| 8143 | rptr = sec->contents; | |
| 1e2f5b6e | 8144 | write_rel = relstart; |
| 51aecdc5 | 8145 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8146 | { |
| 50bc7936 AM |
8147 | unsigned long r_symndx; |
| 8148 | asection *sym_sec; | |
| 8149 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8150 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8151 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8152 | long opd_ent_size; |
| 8153 | Elf_Internal_Rela *next_rel; | |
| 8154 | bfd_boolean skip; | |
| 50bc7936 AM |
8155 | |
| 8156 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8157 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8158 | r_symndx, ibfd)) |
| 50bc7936 AM |
8159 | goto error_ret; |
| 8160 | ||
| 51aecdc5 AM |
8161 | next_rel = rel + 2; |
| 8162 | if (next_rel + 1 == relend | |
| 8163 | || (next_rel + 2 < relend | |
| 8164 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8165 | ++next_rel; | |
| 8166 | ||
| 8167 | /* See if the .opd entry is full 24 byte or | |
| 8168 | 16 byte (with fd_aux entry overlapped with next | |
| 8169 | fd_func). */ | |
| 8170 | opd_ent_size = 24; | |
| 8171 | if (next_rel == relend) | |
| 1e2f5b6e | 8172 | { |
| 51aecdc5 | 8173 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8174 | opd_ent_size = 16; |
| 51aecdc5 AM |
8175 | } |
| 8176 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8177 | opd_ent_size = 16; | |
| 3f764659 | 8178 | |
| 51aecdc5 AM |
8179 | if (h != NULL |
| 8180 | && h->root.root.string[0] == '.') | |
| 8181 | { | |
| 8c5b4e52 AM |
8182 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8183 | if (fdh != NULL) | |
| 8184 | { | |
| 8185 | fdh = ppc_follow_link (fdh); | |
| 8186 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8187 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8188 | fdh = NULL; | |
| 8189 | } | |
| 51aecdc5 | 8190 | } |
| 1e2f5b6e | 8191 | |
| 51aecdc5 AM |
8192 | skip = (sym_sec->owner != ibfd |
| 8193 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8194 | if (skip) | |
| 8195 | { | |
| 8196 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8197 | { |
| 51aecdc5 AM |
8198 | /* Arrange for the function descriptor sym |
| 8199 | to be dropped. */ | |
| 8200 | fdh->elf.root.u.def.value = 0; | |
| 8201 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8202 | } |
| 51aecdc5 | 8203 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8204 | |
| 0e1862bb | 8205 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8206 | rel = next_rel; |
| 8207 | else | |
| 8208 | while (1) | |
| 8209 | { | |
| 8210 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8211 | NULL, h, sym)) | |
| 8212 | goto error_ret; | |
| 754021d0 | 8213 | |
| 51aecdc5 AM |
8214 | if (++rel == next_rel) |
| 8215 | break; | |
| 1e2f5b6e | 8216 | |
| 51aecdc5 AM |
8217 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8218 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8219 | r_symndx, ibfd)) | |
| 8220 | goto error_ret; | |
| 8221 | } | |
| 50bc7936 AM |
8222 | } |
| 8223 | else | |
| 1e2f5b6e | 8224 | { |
| 51aecdc5 AM |
8225 | /* We'll be keeping this opd entry. */ |
| 8226 | long adjust; | |
| 8227 | ||
| 8228 | if (fdh != NULL) | |
| 8229 | { | |
| 8230 | /* Redefine the function descriptor symbol to | |
| 8231 | this location in the opd section. It is | |
| 8232 | necessary to update the value here rather | |
| 8233 | than using an array of adjustments as we do | |
| 8234 | for local symbols, because various places | |
| 8235 | in the generic ELF code use the value | |
| 8236 | stored in u.def.value. */ | |
| 8237 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8238 | fdh->adjust_done = 1; | |
| 8239 | } | |
| 8240 | ||
| 8241 | /* Local syms are a bit tricky. We could | |
| 8242 | tweak them as they can be cached, but | |
| 8243 | we'd need to look through the local syms | |
| 8244 | for the function descriptor sym which we | |
| 8245 | don't have at the moment. So keep an | |
| 8246 | array of adjustments. */ | |
| 8247 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8248 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8249 | ||
| 8250 | if (wptr != rptr) | |
| 8251 | memcpy (wptr, rptr, opd_ent_size); | |
| 8252 | wptr += opd_ent_size; | |
| 8253 | if (add_aux_fields && opd_ent_size == 16) | |
| 8254 | { | |
| 8255 | memset (wptr, '\0', 8); | |
| 8256 | wptr += 8; | |
| 8257 | } | |
| 8258 | ||
| 50bc7936 | 8259 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8260 | new opd entries. */ |
| 8261 | for ( ; rel != next_rel; ++rel) | |
| 8262 | { | |
| 8263 | rel->r_offset += adjust; | |
| 8264 | if (write_rel != rel) | |
| 8265 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8266 | ++write_rel; | |
| 8267 | } | |
| 1e2f5b6e | 8268 | } |
| 51aecdc5 AM |
8269 | |
| 8270 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8271 | } |
| 8272 | ||
| 3f764659 | 8273 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8274 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8275 | if (add_aux_fields) |
| 8276 | { | |
| 8277 | free (sec->contents); | |
| 8278 | sec->contents = new_contents; | |
| 8279 | } | |
| 8280 | ||
| 05bf9422 | 8281 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8282 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8283 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8284 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8285 | some_edited = TRUE; |
| 1e2f5b6e | 8286 | } |
| 6cdc0ccc | 8287 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8288 | free (relstart); |
| 6cdc0ccc | 8289 | |
| 411e1bfb AM |
8290 | if (local_syms != NULL |
| 8291 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8292 | { | |
| 8293 | if (!info->keep_memory) | |
| 8294 | free (local_syms); | |
| 8295 | else | |
| 8296 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8297 | } | |
| 8298 | } | |
| 8299 | ||
| 754021d0 AM |
8300 | if (some_edited) |
| 8301 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8302 | ||
| 3f764659 JJ |
8303 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8304 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8305 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8306 | { |
| 8307 | bfd_byte *p; | |
| 8308 | ||
| 8309 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8310 | { | |
| 8311 | BFD_ASSERT (need_pad->size > 0); | |
| 8312 | ||
| 8313 | p = bfd_malloc (need_pad->size + 8); | |
| 8314 | if (p == NULL) | |
| 8315 | return FALSE; | |
| 699733f6 | 8316 | |
| 3f764659 JJ |
8317 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8318 | p, 0, need_pad->size)) | |
| 8319 | return FALSE; | |
| 8320 | ||
| 8321 | need_pad->contents = p; | |
| 8322 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8323 | } | |
| 8324 | else | |
| 8325 | { | |
| 8326 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8327 | if (p == NULL) | |
| 8328 | return FALSE; | |
| 8329 | ||
| 8330 | need_pad->contents = p; | |
| 8331 | } | |
| 8332 | ||
| 8333 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8334 | need_pad->size += 8; | |
| 8335 | } | |
| 8336 | ||
| 411e1bfb AM |
8337 | return TRUE; |
| 8338 | } | |
| 8339 | ||
| e1918d23 | 8340 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8341 | |
| e1918d23 | 8342 | asection * |
| e7d1c40c | 8343 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8344 | { |
| 411e1bfb AM |
8345 | struct ppc_link_hash_table *htab; |
| 8346 | ||
| 411e1bfb | 8347 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8348 | if (htab == NULL) |
| 8349 | return NULL; | |
| 8350 | ||
| ee67d69a AM |
8351 | if (abiversion (info->output_bfd) == 1) |
| 8352 | htab->opd_abi = 1; | |
| 8353 | ||
| e7d1c40c | 8354 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8355 | htab->do_multi_toc = 0; |
| 8356 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8357 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8358 | |
| 8b5f1ed8 AM |
8359 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8360 | with symbol interposition. For example, glibc libpthread.so and | |
| 8361 | libc.so duplicate many pthread symbols, with a fallback | |
| 8362 | implementation in libc.so. In some cases the fallback does more | |
| 8363 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8364 | is one such symbol: the libpthread.so implementation is | |
| 8365 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8366 | An app that "cleverly" uses dlopen to only load necessary | |
| 8367 | libraries at runtime may omit loading libpthread.so when not | |
| 8368 | running multi-threaded, which then results in the libc.so | |
| 8369 | fallback symbols being used and ld.so complaining. Now there | |
| 8370 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8371 | pthread situation, but that may not be the only case where | |
| 8372 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8373 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8374 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8375 | if (htab->params->plt_localentry0 |
| 8376 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8377 | FALSE, FALSE, FALSE) == NULL) | |
| 8378 | info->callbacks->einfo | |
| 8379 | (_("%P: warning: --plt-localentry is especially dangerous without " | |
| 8380 | "ld.so support to detect ABI violations.\n")); | |
| f378ab09 | 8381 | |
| 3a71aa26 AM |
8382 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8383 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8384 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8385 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8386 | if (htab->tls_get_addr != NULL) | |
| 8387 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8388 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8389 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8390 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8391 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8392 | { |
| 8393 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8394 | ||
| 8395 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8396 | FALSE, FALSE, TRUE); | |
| 8397 | if (opt != NULL) | |
| 8398 | func_desc_adjust (opt, info); | |
| 8399 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8400 | FALSE, FALSE, TRUE); | |
| 8401 | if (opt_fd != NULL | |
| 8402 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8403 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8404 | { | |
| 8405 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8406 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8407 | be calling __tls_get_addr via a plt call stub, then | |
| 8408 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8409 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8410 | if (htab->elf.dynamic_sections_created | |
| 8411 | && tga_fd != NULL | |
| 8412 | && (tga_fd->type == STT_FUNC | |
| 8413 | || tga_fd->needs_plt) | |
| 8414 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8415 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8416 | { |
| 8417 | struct plt_entry *ent; | |
| 8418 | ||
| 8419 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8420 | if (ent->plt.refcount > 0) | |
| 8421 | break; | |
| 8422 | if (ent != NULL) | |
| 8423 | { | |
| 8424 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8425 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8426 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8427 | opt_fd->mark = 1; |
| a7f2871e AM |
8428 | if (opt_fd->dynindx != -1) |
| 8429 | { | |
| 8430 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8431 | opt_fd->dynindx = -1; | |
| 8432 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8433 | opt_fd->dynstr_index); | |
| 8434 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8435 | return NULL; |
| a7f2871e AM |
8436 | } |
| 8437 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8438 | tga = &htab->tls_get_addr->elf; | |
| 8439 | if (opt != NULL && tga != NULL) | |
| 8440 | { | |
| 8441 | tga->root.type = bfd_link_hash_indirect; | |
| 8442 | tga->root.u.i.link = &opt->root; | |
| 8443 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8444 | opt->mark = 1; |
| a7f2871e AM |
8445 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8446 | tga->forced_local); | |
| 8447 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8448 | } | |
| 8449 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8450 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8451 | if (htab->tls_get_addr != NULL) | |
| 8452 | { | |
| 8453 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8454 | htab->tls_get_addr->is_func = 1; | |
| 8455 | } | |
| 8456 | } | |
| 8457 | } | |
| 8458 | } | |
| 7c9cf415 AM |
8459 | else if (htab->params->tls_get_addr_opt < 0) |
| 8460 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8461 | } |
| 33c0ec9d | 8462 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8463 | } |
| 8387904d | 8464 | |
| 3a71aa26 AM |
8465 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8466 | HASH1 or HASH2. */ | |
| 8387904d | 8467 | |
| 3a71aa26 AM |
8468 | static bfd_boolean |
| 8469 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8470 | const Elf_Internal_Rela *rel, | |
| 8471 | const struct ppc_link_hash_entry *hash1, | |
| 8472 | const struct ppc_link_hash_entry *hash2) | |
| 8473 | { | |
| 8474 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8475 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8476 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8477 | ||
| e054468f | 8478 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8479 | { |
| 3a71aa26 AM |
8480 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8481 | struct elf_link_hash_entry *h; | |
| 8387904d | 8482 | |
| 3a71aa26 | 8483 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8484 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8485 | if (h == &hash1->elf || h == &hash2->elf) |
| 8486 | return TRUE; | |
| a48ebf4d | 8487 | } |
| 3a71aa26 | 8488 | return FALSE; |
| 951fd09b | 8489 | } |
| 411e1bfb | 8490 | |
| 951fd09b AM |
8491 | /* Run through all the TLS relocs looking for optimization |
| 8492 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8493 | a preliminary section layout so that we know the TLS segment | |
| 8494 | offsets. We can't optimize earlier because some optimizations need | |
| 8495 | to know the tp offset, and we need to optimize before allocating | |
| 8496 | dynamic relocations. */ | |
| 8497 | ||
| 8498 | bfd_boolean | |
| 33c0ec9d | 8499 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8500 | { |
| 8501 | bfd *ibfd; | |
| 8502 | asection *sec; | |
| 8503 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8504 | unsigned char *toc_ref; |
| 102890f0 | 8505 | int pass; |
| 951fd09b | 8506 | |
| 3cbc1e5e | 8507 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8508 | return TRUE; |
| 8509 | ||
| 951fd09b | 8510 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8511 | if (htab == NULL) |
| 8512 | return FALSE; | |
| 8513 | ||
| 663a1470 AM |
8514 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8515 | entries involved with tls relocs, and check that tls relocs | |
| 8516 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8517 | such a call. If they are not, we can't do any tls optimization. | |
| 8518 | On the second pass twiddle tls_mask flags to notify | |
| 8519 | relocate_section that optimization can be done, and adjust got | |
| 8520 | and plt refcounts. */ | |
| 8521 | toc_ref = NULL; | |
| 8522 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8523 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8524 | { |
| 8525 | Elf_Internal_Sym *locsyms = NULL; | |
| 8526 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8527 | ||
| 102890f0 AM |
8528 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8529 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8530 | { | |
| 8531 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8532 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8533 | |
| 102890f0 AM |
8534 | /* Read the relocations. */ |
| 8535 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8536 | info->keep_memory); | |
| 8537 | if (relstart == NULL) | |
| 2915c55b JK |
8538 | { |
| 8539 | free (toc_ref); | |
| 8540 | return FALSE; | |
| 8541 | } | |
| 411e1bfb | 8542 | |
| 102890f0 AM |
8543 | relend = relstart + sec->reloc_count; |
| 8544 | for (rel = relstart; rel < relend; rel++) | |
| 8545 | { | |
| 8546 | enum elf_ppc64_reloc_type r_type; | |
| 8547 | unsigned long r_symndx; | |
| 8548 | struct elf_link_hash_entry *h; | |
| 8549 | Elf_Internal_Sym *sym; | |
| 8550 | asection *sym_sec; | |
| f961d9dd AM |
8551 | unsigned char *tls_mask; |
| 8552 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8553 | bfd_vma value; |
| 8554 | bfd_boolean ok_tprel, is_local; | |
| 8555 | long toc_ref_index = 0; | |
| 8556 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8557 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8558 | |
| 102890f0 AM |
8559 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8560 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8561 | r_symndx, ibfd)) | |
| 8562 | { | |
| 8563 | err_free_rel: | |
| 8564 | if (elf_section_data (sec)->relocs != relstart) | |
| 8565 | free (relstart); | |
| 8566 | if (toc_ref != NULL) | |
| 8567 | free (toc_ref); | |
| 8568 | if (locsyms != NULL | |
| 0ffa91dd | 8569 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8570 | != (unsigned char *) locsyms)) |
| 8571 | free (locsyms); | |
| 663a1470 | 8572 | return ret; |
| 102890f0 | 8573 | } |
| 411e1bfb | 8574 | |
| 102890f0 AM |
8575 | if (h != NULL) |
| 8576 | { | |
| 766bc656 AM |
8577 | if (h->root.type == bfd_link_hash_defined |
| 8578 | || h->root.type == bfd_link_hash_defweak) | |
| 8579 | value = h->root.u.def.value; | |
| 8580 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8581 | value = 0; | |
| 8582 | else | |
| 663a1470 AM |
8583 | { |
| 8584 | found_tls_get_addr_arg = 0; | |
| 8585 | continue; | |
| 8586 | } | |
| 102890f0 AM |
8587 | } |
| 8588 | else | |
| 8589 | /* Symbols referenced by TLS relocs must be of type | |
| 8590 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8591 | value = sym->st_value; | |
| 8592 | ||
| 8593 | ok_tprel = FALSE; | |
| 8594 | is_local = FALSE; | |
| 8595 | if (h == NULL | |
| 8596 | || !h->def_dynamic) | |
| 8597 | { | |
| 8598 | is_local = TRUE; | |
| 766bc656 AM |
8599 | if (h != NULL |
| 8600 | && h->root.type == bfd_link_hash_undefweak) | |
| 8601 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8602 | else if (sym_sec != NULL |
| 8603 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8604 | { |
| 8605 | value += sym_sec->output_offset; | |
| 8606 | value += sym_sec->output_section->vma; | |
| 8607 | value -= htab->elf.tls_sec->vma; | |
| 8608 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8609 | < (bfd_vma) 1 << 32); | |
| 8610 | } | |
| 102890f0 | 8611 | } |
| 951fd09b | 8612 | |
| 102890f0 | 8613 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8614 | /* If this section has old-style __tls_get_addr calls |
| 8615 | without marker relocs, then check that each | |
| 8616 | __tls_get_addr call reloc is preceded by a reloc | |
| 8617 | that conceivably belongs to the __tls_get_addr arg | |
| 8618 | setup insn. If we don't find matching arg setup | |
| 8619 | relocs, don't do any tls optimization. */ | |
| 8620 | if (pass == 0 | |
| 8621 | && sec->has_tls_get_addr_call | |
| 8622 | && h != NULL | |
| 8623 | && (h == &htab->tls_get_addr->elf | |
| 8624 | || h == &htab->tls_get_addr_fd->elf) | |
| 8625 | && !found_tls_get_addr_arg | |
| 8626 | && is_branch_reloc (r_type)) | |
| 8627 | { | |
| 25f53a85 | 8628 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8629 | "TLS optimization disabled\n"), |
| 8630 | ibfd, sec, rel->r_offset); | |
| 8631 | ret = TRUE; | |
| 8632 | goto err_free_rel; | |
| 8633 | } | |
| 8634 | ||
| 8635 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8636 | switch (r_type) |
| 8637 | { | |
| 8638 | case R_PPC64_GOT_TLSLD16: | |
| 8639 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8640 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8641 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8642 | /* Fall through. */ |
| 102890f0 AM |
8643 | |
| 8644 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8645 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8646 | /* These relocs should never be against a symbol | |
| 8647 | defined in a shared lib. Leave them alone if | |
| 8648 | that turns out to be the case. */ | |
| 8649 | if (!is_local) | |
| 8650 | continue; | |
| 411e1bfb | 8651 | |
| 102890f0 | 8652 | /* LD -> LE */ |
| 411e1bfb | 8653 | tls_set = 0; |
| 102890f0 AM |
8654 | tls_clear = TLS_LD; |
| 8655 | tls_type = TLS_TLS | TLS_LD; | |
| 8656 | break; | |
| 411e1bfb | 8657 | |
| 102890f0 AM |
8658 | case R_PPC64_GOT_TLSGD16: |
| 8659 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8660 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8661 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8662 | /* Fall through. */ |
| 102890f0 AM |
8663 | |
| 8664 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8665 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8666 | if (ok_tprel) | |
| 8667 | /* GD -> LE */ | |
| 411e1bfb | 8668 | tls_set = 0; |
| 102890f0 AM |
8669 | else |
| 8670 | /* GD -> IE */ | |
| 8671 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8672 | tls_clear = TLS_GD; | |
| 8673 | tls_type = TLS_TLS | TLS_GD; | |
| 8674 | break; | |
| 8675 | ||
| 8676 | case R_PPC64_GOT_TPREL16_DS: | |
| 8677 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8678 | case R_PPC64_GOT_TPREL16_HI: | |
| 8679 | case R_PPC64_GOT_TPREL16_HA: | |
| 8680 | if (ok_tprel) | |
| 8681 | { | |
| 8682 | /* IE -> LE */ | |
| 8683 | tls_set = 0; | |
| 8684 | tls_clear = TLS_TPREL; | |
| 8685 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8686 | break; | |
| 8687 | } | |
| 411e1bfb AM |
8688 | continue; |
| 8689 | ||
| 727fc41e AM |
8690 | case R_PPC64_TLSGD: |
| 8691 | case R_PPC64_TLSLD: | |
| 663a1470 | 8692 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8693 | /* Fall through. */ |
| 663a1470 AM |
8694 | |
| 8695 | case R_PPC64_TLS: | |
| 8696 | case R_PPC64_TOC16: | |
| 8697 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8698 | if (sym_sec == NULL || sym_sec != toc) |
| 8699 | continue; | |
| 8700 | ||
| 8701 | /* Mark this toc entry as referenced by a TLS | |
| 8702 | code sequence. We can do that now in the | |
| 8703 | case of R_PPC64_TLS, and after checking for | |
| 8704 | tls_get_addr for the TOC16 relocs. */ | |
| 8705 | if (toc_ref == NULL) | |
| 663a1470 AM |
8706 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8707 | if (toc_ref == NULL) | |
| 8708 | goto err_free_rel; | |
| 8709 | ||
| 102890f0 AM |
8710 | if (h != NULL) |
| 8711 | value = h->root.u.def.value; | |
| 8712 | else | |
| 8713 | value = sym->st_value; | |
| 8714 | value += rel->r_addend; | |
| 73242275 AM |
8715 | if (value % 8 != 0) |
| 8716 | continue; | |
| 8717 | BFD_ASSERT (value < toc->size | |
| 8718 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8719 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8720 | if (r_type == R_PPC64_TLS |
| 8721 | || r_type == R_PPC64_TLSGD | |
| 8722 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8723 | { |
| 8724 | toc_ref[toc_ref_index] = 1; | |
| 8725 | continue; | |
| 8726 | } | |
| 8727 | ||
| 8728 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8729 | continue; | |
| 8730 | ||
| 8731 | tls_set = 0; | |
| 8732 | tls_clear = 0; | |
| 8733 | expecting_tls_get_addr = 2; | |
| 8734 | break; | |
| 8735 | ||
| 8736 | case R_PPC64_TPREL64: | |
| 8737 | if (pass == 0 | |
| 8738 | || sec != toc | |
| 8739 | || toc_ref == NULL | |
| 663a1470 | 8740 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8741 | continue; |
| 8742 | if (ok_tprel) | |
| 8743 | { | |
| 8744 | /* IE -> LE */ | |
| 8745 | tls_set = TLS_EXPLICIT; | |
| 8746 | tls_clear = TLS_TPREL; | |
| 8747 | break; | |
| 8748 | } | |
| 8749 | continue; | |
| 8750 | ||
| 8751 | case R_PPC64_DTPMOD64: | |
| 8752 | if (pass == 0 | |
| 8753 | || sec != toc | |
| 8754 | || toc_ref == NULL | |
| 663a1470 | 8755 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8756 | continue; |
| 8757 | if (rel + 1 < relend | |
| 8758 | && (rel[1].r_info | |
| 8759 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8760 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8761 | { | |
| 8762 | if (ok_tprel) | |
| 8763 | /* GD -> LE */ | |
| 8764 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8765 | else | |
| 8766 | /* GD -> IE */ | |
| 8767 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8768 | tls_clear = TLS_GD; | |
| 8769 | } | |
| 8770 | else | |
| 8771 | { | |
| 8772 | if (!is_local) | |
| 8773 | continue; | |
| 8774 | ||
| 8775 | /* LD -> LE */ | |
| 8776 | tls_set = TLS_EXPLICIT; | |
| 8777 | tls_clear = TLS_LD; | |
| 8778 | } | |
| 8779 | break; | |
| 8780 | ||
| 8781 | default: | |
| 8782 | continue; | |
| 8783 | } | |
| 8784 | ||
| 8785 | if (pass == 0) | |
| 8786 | { | |
| 727fc41e AM |
8787 | if (!expecting_tls_get_addr |
| 8788 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8789 | continue; |
| 8790 | ||
| 3a71aa26 AM |
8791 | if (rel + 1 < relend |
| 8792 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8793 | htab->tls_get_addr, | |
| 8794 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8795 | { |
| 3a71aa26 | 8796 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8797 | { |
| 3a71aa26 | 8798 | /* Check for toc tls entries. */ |
| f961d9dd | 8799 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8800 | int retval; |
| 8801 | ||
| 8802 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8803 | &locsyms, | |
| 8804 | rel, ibfd); | |
| 8805 | if (retval == 0) | |
| 8806 | goto err_free_rel; | |
| 663a1470 AM |
8807 | if (toc_tls != NULL) |
| 8808 | { | |
| 8809 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8810 | found_tls_get_addr_arg = 1; | |
| 8811 | if (retval > 1) | |
| 8812 | toc_ref[toc_ref_index] = 1; | |
| 8813 | } | |
| 102890f0 | 8814 | } |
| 3a71aa26 | 8815 | continue; |
| 102890f0 AM |
8816 | } |
| 8817 | ||
| 8818 | if (expecting_tls_get_addr != 1) | |
| 8819 | continue; | |
| 8820 | ||
| 8821 | /* Uh oh, we didn't find the expected call. We | |
| 8822 | could just mark this symbol to exclude it | |
| 8823 | from tls optimization but it's safer to skip | |
| 663a1470 | 8824 | the entire optimization. */ |
| 695344c0 | 8825 | /* xgettext:c-format */ |
| 25f53a85 | 8826 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8827 | "TLS optimization disabled\n"), |
| 8828 | ibfd, sec, rel->r_offset); | |
| 8829 | ret = TRUE; | |
| 8830 | goto err_free_rel; | |
| 102890f0 AM |
8831 | } |
| 8832 | ||
| 85f7a9cb | 8833 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8834 | { |
| 8835 | struct plt_entry *ent; | |
| 8836 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8837 | ent != NULL; | |
| 8838 | ent = ent->next) | |
| 8839 | if (ent->addend == 0) | |
| 411e1bfb | 8840 | { |
| 102890f0 | 8841 | if (ent->plt.refcount > 0) |
| 30038c59 | 8842 | { |
| 102890f0 AM |
8843 | ent->plt.refcount -= 1; |
| 8844 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8845 | } |
| 102890f0 | 8846 | break; |
| 411e1bfb | 8847 | } |
| 102890f0 | 8848 | } |
| 411e1bfb | 8849 | |
| 85f7a9cb | 8850 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8851 | { |
| 8852 | struct plt_entry *ent; | |
| 8853 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8854 | ent != NULL; | |
| 8855 | ent = ent->next) | |
| 8856 | if (ent->addend == 0) | |
| 411e1bfb | 8857 | { |
| 102890f0 AM |
8858 | if (ent->plt.refcount > 0) |
| 8859 | ent->plt.refcount -= 1; | |
| 8860 | break; | |
| 411e1bfb | 8861 | } |
| 102890f0 | 8862 | } |
| 411e1bfb | 8863 | |
| 102890f0 | 8864 | if (tls_clear == 0) |
| 30038c59 AM |
8865 | continue; |
| 8866 | ||
| 102890f0 AM |
8867 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8868 | { | |
| 8869 | struct got_entry *ent; | |
| 411e1bfb | 8870 | |
| 102890f0 AM |
8871 | /* Adjust got entry for this reloc. */ |
| 8872 | if (h != NULL) | |
| 8873 | ent = h->got.glist; | |
| 8874 | else | |
| 8875 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8876 | |
| 102890f0 AM |
8877 | for (; ent != NULL; ent = ent->next) |
| 8878 | if (ent->addend == rel->r_addend | |
| 8879 | && ent->owner == ibfd | |
| 8880 | && ent->tls_type == tls_type) | |
| 8881 | break; | |
| 8882 | if (ent == NULL) | |
| 8883 | abort (); | |
| 411e1bfb | 8884 | |
| 102890f0 AM |
8885 | if (tls_set == 0) |
| 8886 | { | |
| 8887 | /* We managed to get rid of a got entry. */ | |
| 8888 | if (ent->got.refcount > 0) | |
| 8889 | ent->got.refcount -= 1; | |
| 8890 | } | |
| 8891 | } | |
| 8892 | else | |
| 8893 | { | |
| 8894 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8895 | we'll lose one or two dyn relocs. */ | |
| 8896 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8897 | NULL, h, sym)) |
| 102890f0 | 8898 | return FALSE; |
| 411e1bfb | 8899 | |
| 102890f0 AM |
8900 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8901 | { | |
| 8902 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8903 | NULL, h, sym)) |
| 102890f0 AM |
8904 | return FALSE; |
| 8905 | } | |
| 8906 | } | |
| 411e1bfb | 8907 | |
| 102890f0 AM |
8908 | *tls_mask |= tls_set; |
| 8909 | *tls_mask &= ~tls_clear; | |
| 8910 | } | |
| 8c1d1bb8 | 8911 | |
| 102890f0 AM |
8912 | if (elf_section_data (sec)->relocs != relstart) |
| 8913 | free (relstart); | |
| 8914 | } | |
| 411e1bfb | 8915 | |
| 663a1470 AM |
8916 | if (locsyms != NULL |
| 8917 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8918 | { | |
| 8919 | if (!info->keep_memory) | |
| 8920 | free (locsyms); | |
| 8921 | else | |
| 8922 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8923 | } | |
| 8924 | } | |
| 411e1bfb | 8925 | |
| 663a1470 AM |
8926 | if (toc_ref != NULL) |
| 8927 | free (toc_ref); | |
| b34976b6 | 8928 | return TRUE; |
| 1e2f5b6e | 8929 | } |
| b34976b6 | 8930 | |
| c5614fa4 AM |
8931 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8932 | the values of any global symbols in a toc section that has been | |
| 8933 | edited. Globals in toc sections should be a rarity, so this function | |
| 8934 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 8935 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
8936 | |
| 8937 | struct adjust_toc_info | |
| 8938 | { | |
| 8939 | asection *toc; | |
| 8940 | unsigned long *skip; | |
| 8941 | bfd_boolean global_toc_syms; | |
| 8942 | }; | |
| 8943 | ||
| ba761f19 AM |
8944 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8945 | ||
| c5614fa4 AM |
8946 | static bfd_boolean |
| 8947 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8948 | { | |
| 8949 | struct ppc_link_hash_entry *eh; | |
| 8950 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8951 | unsigned long i; |
| c5614fa4 | 8952 | |
| c5614fa4 AM |
8953 | if (h->root.type != bfd_link_hash_defined |
| 8954 | && h->root.type != bfd_link_hash_defweak) | |
| 8955 | return TRUE; | |
| 8956 | ||
| 8957 | eh = (struct ppc_link_hash_entry *) h; | |
| 8958 | if (eh->adjust_done) | |
| 8959 | return TRUE; | |
| 8960 | ||
| 8961 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8962 | { | |
| 854b41e7 AM |
8963 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8964 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8965 | else |
| 854b41e7 AM |
8966 | i = eh->elf.root.u.def.value >> 3; |
| 8967 | ||
| ba761f19 | 8968 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8969 | { |
| 4eca0228 | 8970 | _bfd_error_handler |
| 854b41e7 AM |
8971 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8972 | do | |
| 8973 | ++i; | |
| ba761f19 | 8974 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8975 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8976 | } |
| 854b41e7 AM |
8977 | |
| 8978 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8979 | eh->adjust_done = 1; |
| 8980 | } | |
| 8981 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8982 | toc_inf->global_toc_syms = TRUE; | |
| 8983 | ||
| 8984 | return TRUE; | |
| 8985 | } | |
| 8986 | ||
| 39eeab25 AM |
8987 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8988 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8989 | |
| 8990 | static bfd_boolean | |
| 39eeab25 | 8991 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8992 | { |
| 39eeab25 AM |
8993 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8994 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8995 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8996 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8997 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8998 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8999 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 9000 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 9001 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 9002 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 9003 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 9004 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 9005 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 9006 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 9007 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
9008 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 9009 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 9010 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 9011 | defined for the reduced D field in psq_lu then those | |
| 9012 | will need testing too. */ | |
| 9013 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 9014 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 9015 | && (insn & 1) == 0) | |
| 9016 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 9017 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 9018 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 9019 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 9020 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 9021 | && (insn & 1) == 0)); | |
| 560c8763 AM |
9022 | } |
| 9023 | ||
| c5614fa4 AM |
9024 | /* Examine all relocs referencing .toc sections in order to remove |
| 9025 | unused .toc entries. */ | |
| 9026 | ||
| 9027 | bfd_boolean | |
| 33c0ec9d | 9028 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
9029 | { |
| 9030 | bfd *ibfd; | |
| 9031 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 9032 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 9033 | |
| 67f0cbdb | 9034 | htab->do_toc_opt = 1; |
| c5614fa4 | 9035 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 9036 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
9037 | { |
| 9038 | asection *toc, *sec; | |
| 9039 | Elf_Internal_Shdr *symtab_hdr; | |
| 9040 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 9041 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
9042 | unsigned long *skip, *drop; |
| 9043 | unsigned char *used; | |
| 9044 | unsigned char *keep, last, some_unused; | |
| 9045 | ||
| 854b41e7 AM |
9046 | if (!is_ppc64_elf (ibfd)) |
| 9047 | continue; | |
| 9048 | ||
| c5614fa4 AM |
9049 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 9050 | if (toc == NULL | |
| 92b7a70f | 9051 | || toc->size == 0 |
| dbaa2011 AM |
9052 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 9053 | || discarded_section (toc)) | |
| c5614fa4 AM |
9054 | continue; |
| 9055 | ||
| 425b145b | 9056 | toc_relocs = NULL; |
| c5614fa4 | 9057 | local_syms = NULL; |
| 0ffa91dd | 9058 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
9059 | |
| 9060 | /* Look at sections dropped from the final link. */ | |
| 9061 | skip = NULL; | |
| 9062 | relstart = NULL; | |
| 9063 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 9064 | { | |
| 9065 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9066 | || !discarded_section (sec) |
| c5614fa4 AM |
9067 | || get_opd_info (sec) |
| 9068 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9069 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9070 | continue; | |
| 9071 | ||
| 9072 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 9073 | if (relstart == NULL) | |
| 9074 | goto error_ret; | |
| 9075 | ||
| 9076 | /* Run through the relocs to see which toc entries might be | |
| 9077 | unused. */ | |
| 9078 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9079 | { | |
| 9080 | enum elf_ppc64_reloc_type r_type; | |
| 9081 | unsigned long r_symndx; | |
| 9082 | asection *sym_sec; | |
| 9083 | struct elf_link_hash_entry *h; | |
| 9084 | Elf_Internal_Sym *sym; | |
| 9085 | bfd_vma val; | |
| 9086 | ||
| 9087 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9088 | switch (r_type) | |
| 9089 | { | |
| 9090 | default: | |
| 9091 | continue; | |
| 9092 | ||
| 9093 | case R_PPC64_TOC16: | |
| 9094 | case R_PPC64_TOC16_LO: | |
| 9095 | case R_PPC64_TOC16_HI: | |
| 9096 | case R_PPC64_TOC16_HA: | |
| 9097 | case R_PPC64_TOC16_DS: | |
| 9098 | case R_PPC64_TOC16_LO_DS: | |
| 9099 | break; | |
| 9100 | } | |
| 9101 | ||
| 9102 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9103 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9104 | r_symndx, ibfd)) | |
| 9105 | goto error_ret; | |
| 9106 | ||
| 9107 | if (sym_sec != toc) | |
| 9108 | continue; | |
| 9109 | ||
| 9110 | if (h != NULL) | |
| 9111 | val = h->root.u.def.value; | |
| 9112 | else | |
| 9113 | val = sym->st_value; | |
| 9114 | val += rel->r_addend; | |
| 9115 | ||
| 9116 | if (val >= toc->size) | |
| 9117 | continue; | |
| 9118 | ||
| 9119 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 9120 | If not, don't mark as unused. */ | |
| 9121 | if (val & 7) | |
| 9122 | continue; | |
| 9123 | ||
| 9124 | if (skip == NULL) | |
| 9125 | { | |
| 854b41e7 | 9126 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
9127 | if (skip == NULL) |
| 9128 | goto error_ret; | |
| 9129 | } | |
| 9130 | ||
| ba761f19 | 9131 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
9132 | } |
| 9133 | ||
| 9134 | if (elf_section_data (sec)->relocs != relstart) | |
| 9135 | free (relstart); | |
| 9136 | } | |
| 9137 | ||
| ba761f19 AM |
9138 | /* For largetoc loads of address constants, we can convert |
| 9139 | . addis rx,2,addr@got@ha | |
| 9140 | . ld ry,addr@got@l(rx) | |
| 9141 | to | |
| 9142 | . addis rx,2,addr@toc@ha | |
| 9143 | . addi ry,rx,addr@toc@l | |
| 9144 | when addr is within 2G of the toc pointer. This then means | |
| 9145 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9146 | |
| ba761f19 AM |
9147 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9148 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9149 | && toc->reloc_count != 0) | |
| 9150 | { | |
| 9151 | /* Read toc relocs. */ | |
| 425b145b AM |
9152 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9153 | info->keep_memory); | |
| 9154 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9155 | goto error_ret; |
| 9156 | ||
| 425b145b | 9157 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9158 | { |
| 9159 | enum elf_ppc64_reloc_type r_type; | |
| 9160 | unsigned long r_symndx; | |
| 9161 | asection *sym_sec; | |
| 9162 | struct elf_link_hash_entry *h; | |
| 9163 | Elf_Internal_Sym *sym; | |
| 9164 | bfd_vma val, addr; | |
| 9165 | ||
| 9166 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9167 | if (r_type != R_PPC64_ADDR64) | |
| 9168 | continue; | |
| 9169 | ||
| 9170 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9171 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9172 | r_symndx, ibfd)) | |
| 9173 | goto error_ret; | |
| 9174 | ||
| 425b145b | 9175 | if (sym_sec == NULL |
| c27b8c2a | 9176 | || sym_sec->output_section == NULL |
| dbaa2011 | 9177 | || discarded_section (sym_sec)) |
| 425b145b AM |
9178 | continue; |
| 9179 | ||
| afe397ea | 9180 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9181 | continue; |
| 9182 | ||
| 9183 | if (h != NULL) | |
| bddc25c9 AM |
9184 | { |
| 9185 | if (h->type == STT_GNU_IFUNC) | |
| 9186 | continue; | |
| 9187 | val = h->root.u.def.value; | |
| 9188 | } | |
| ba761f19 | 9189 | else |
| bddc25c9 AM |
9190 | { |
| 9191 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9192 | continue; | |
| 9193 | val = sym->st_value; | |
| 9194 | } | |
| ba761f19 AM |
9195 | val += rel->r_addend; |
| 9196 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9197 | ||
| 9198 | /* We don't yet know the exact toc pointer value, but we | |
| 9199 | know it will be somewhere in the toc section. Don't | |
| 9200 | optimize if the difference from any possible toc | |
| 9201 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9202 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9203 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9204 | continue; | |
| 9205 | ||
| 9206 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9207 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9208 | continue; | |
| 9209 | ||
| 9210 | if (skip == NULL) | |
| 9211 | { | |
| 9212 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9213 | if (skip == NULL) | |
| 9214 | goto error_ret; | |
| 9215 | } | |
| 9216 | ||
| 9217 | skip[rel->r_offset >> 3] | |
| 425b145b | 9218 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9219 | } |
| ba761f19 AM |
9220 | } |
| 9221 | ||
| c5614fa4 AM |
9222 | if (skip == NULL) |
| 9223 | continue; | |
| 9224 | ||
| 9225 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9226 | if (used == NULL) | |
| 9227 | { | |
| 9228 | error_ret: | |
| 9229 | if (local_syms != NULL | |
| 9230 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9231 | free (local_syms); | |
| 9232 | if (sec != NULL | |
| 9233 | && relstart != NULL | |
| 9234 | && elf_section_data (sec)->relocs != relstart) | |
| 9235 | free (relstart); | |
| 425b145b AM |
9236 | if (toc_relocs != NULL |
| 9237 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9238 | free (toc_relocs); | |
| c5614fa4 AM |
9239 | if (skip != NULL) |
| 9240 | free (skip); | |
| 9241 | return FALSE; | |
| 9242 | } | |
| 9243 | ||
| 30038c59 AM |
9244 | /* Now check all kept sections that might reference the toc. |
| 9245 | Check the toc itself last. */ | |
| 9246 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9247 | : ibfd->sections); | |
| c5614fa4 | 9248 | sec != NULL; |
| c5614fa4 | 9249 | sec = (sec == toc ? NULL |
| c5614fa4 | 9250 | : sec->next == NULL ? toc |
| 30038c59 | 9251 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9252 | : sec->next)) |
| 9253 | { | |
| 9254 | int repeat; | |
| 9255 | ||
| 9256 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9257 | || discarded_section (sec) |
| c5614fa4 AM |
9258 | || get_opd_info (sec) |
| 9259 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9260 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9261 | continue; | |
| 9262 | ||
| 854b41e7 AM |
9263 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9264 | info->keep_memory); | |
| c5614fa4 | 9265 | if (relstart == NULL) |
| 2915c55b JK |
9266 | { |
| 9267 | free (used); | |
| 9268 | goto error_ret; | |
| 9269 | } | |
| c5614fa4 AM |
9270 | |
| 9271 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9272 | do |
| d4f1ee75 AM |
9273 | { |
| 9274 | repeat = 0; | |
| 9275 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9276 | { | |
| 9277 | enum elf_ppc64_reloc_type r_type; | |
| 9278 | unsigned long r_symndx; | |
| 9279 | asection *sym_sec; | |
| 9280 | struct elf_link_hash_entry *h; | |
| 9281 | Elf_Internal_Sym *sym; | |
| 9282 | bfd_vma val; | |
| 9283 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9284 | |
| d4f1ee75 AM |
9285 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9286 | switch (r_type) | |
| 9287 | { | |
| 9288 | default: | |
| 9289 | insn_check = no_check; | |
| 9290 | break; | |
| 98528052 | 9291 | |
| d4f1ee75 AM |
9292 | case R_PPC64_GOT_TLSLD16_HA: |
| 9293 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9294 | case R_PPC64_GOT_TPREL16_HA: | |
| 9295 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9296 | case R_PPC64_GOT16_HA: | |
| 9297 | case R_PPC64_TOC16_HA: | |
| 9298 | insn_check = check_ha; | |
| 9299 | break; | |
| 98528052 | 9300 | |
| d4f1ee75 AM |
9301 | case R_PPC64_GOT_TLSLD16_LO: |
| 9302 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9303 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9304 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9305 | case R_PPC64_GOT16_LO: | |
| 9306 | case R_PPC64_GOT16_LO_DS: | |
| 9307 | case R_PPC64_TOC16_LO: | |
| 9308 | case R_PPC64_TOC16_LO_DS: | |
| 9309 | insn_check = check_lo; | |
| 9310 | break; | |
| 9311 | } | |
| 560c8763 | 9312 | |
| d4f1ee75 AM |
9313 | if (insn_check != no_check) |
| 9314 | { | |
| 9315 | bfd_vma off = rel->r_offset & ~3; | |
| 9316 | unsigned char buf[4]; | |
| 9317 | unsigned int insn; | |
| c5614fa4 | 9318 | |
| d4f1ee75 AM |
9319 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9320 | { | |
| 9321 | free (used); | |
| 9322 | goto error_ret; | |
| 9323 | } | |
| 9324 | insn = bfd_get_32 (ibfd, buf); | |
| 9325 | if (insn_check == check_lo | |
| 39eeab25 | 9326 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9327 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9328 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9329 | { | |
| 9330 | char str[12]; | |
| 9331 | ||
| 9332 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9333 | sprintf (str, "%#08x", insn); | |
| 9334 | info->callbacks->einfo | |
| 695344c0 | 9335 | /* xgettext:c-format */ |
| 174d0a74 | 9336 | (_("%H: toc optimization is not supported for" |
| d4f1ee75 AM |
9337 | " %s instruction.\n"), |
| 9338 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9339 | } | |
| 9340 | } | |
| c5614fa4 | 9341 | |
| d4f1ee75 AM |
9342 | switch (r_type) |
| 9343 | { | |
| 9344 | case R_PPC64_TOC16: | |
| 9345 | case R_PPC64_TOC16_LO: | |
| 9346 | case R_PPC64_TOC16_HI: | |
| 9347 | case R_PPC64_TOC16_HA: | |
| 9348 | case R_PPC64_TOC16_DS: | |
| 9349 | case R_PPC64_TOC16_LO_DS: | |
| 9350 | /* In case we're taking addresses of toc entries. */ | |
| 9351 | case R_PPC64_ADDR64: | |
| 9352 | break; | |
| c5614fa4 | 9353 | |
| d4f1ee75 AM |
9354 | default: |
| 9355 | continue; | |
| 9356 | } | |
| c5614fa4 | 9357 | |
| d4f1ee75 AM |
9358 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9359 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9360 | r_symndx, ibfd)) | |
| 9361 | { | |
| 9362 | free (used); | |
| 9363 | goto error_ret; | |
| 9364 | } | |
| c5614fa4 | 9365 | |
| d4f1ee75 AM |
9366 | if (sym_sec != toc) |
| 9367 | continue; | |
| c5614fa4 | 9368 | |
| d4f1ee75 AM |
9369 | if (h != NULL) |
| 9370 | val = h->root.u.def.value; | |
| 9371 | else | |
| 9372 | val = sym->st_value; | |
| 9373 | val += rel->r_addend; | |
| ba761f19 | 9374 | |
| d4f1ee75 AM |
9375 | if (val >= toc->size) |
| 9376 | continue; | |
| ba761f19 | 9377 | |
| d4f1ee75 AM |
9378 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9379 | { | |
| 9380 | bfd_vma off; | |
| 9381 | unsigned char opc; | |
| 9382 | ||
| 9383 | switch (r_type) | |
| 9384 | { | |
| 9385 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9386 | break; |
| ba761f19 | 9387 | |
| d4f1ee75 AM |
9388 | case R_PPC64_TOC16_LO_DS: |
| 9389 | off = rel->r_offset; | |
| 9390 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9391 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9392 | off, 1)) | |
| 9393 | { | |
| 9394 | free (used); | |
| 9395 | goto error_ret; | |
| 9396 | } | |
| 9397 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9398 | break; | |
| 1a0670f3 | 9399 | /* Fall through. */ |
| ba761f19 | 9400 | |
| d4f1ee75 AM |
9401 | default: |
| 9402 | /* Wrong sort of reloc, or not a ld. We may | |
| 9403 | as well clear ref_from_discarded too. */ | |
| 9404 | skip[val >> 3] = 0; | |
| 9405 | } | |
| 9406 | } | |
| 9407 | ||
| 9408 | if (sec != toc) | |
| 9409 | used[val >> 3] = 1; | |
| 9410 | /* For the toc section, we only mark as used if this | |
| 9411 | entry itself isn't unused. */ | |
| 9412 | else if ((used[rel->r_offset >> 3] | |
| 9413 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9414 | && !used[val >> 3]) | |
| 9415 | { | |
| 9416 | /* Do all the relocs again, to catch reference | |
| 9417 | chains. */ | |
| 9418 | repeat = 1; | |
| 9419 | used[val >> 3] = 1; | |
| 9420 | } | |
| 9421 | } | |
| 9422 | } | |
| c5614fa4 | 9423 | while (repeat); |
| 854b41e7 AM |
9424 | |
| 9425 | if (elf_section_data (sec)->relocs != relstart) | |
| 9426 | free (relstart); | |
| c5614fa4 AM |
9427 | } |
| 9428 | ||
| 9429 | /* Merge the used and skip arrays. Assume that TOC | |
| 9430 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9431 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9432 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9433 | drop < skip + (toc->size + 7) / 8; | |
| 9434 | ++drop, ++keep) | |
| 9435 | { | |
| 9436 | if (*keep) | |
| 9437 | { | |
| ba761f19 AM |
9438 | *drop &= ~ref_from_discarded; |
| 9439 | if ((*drop & can_optimize) != 0) | |
| 9440 | some_unused = 1; | |
| c5614fa4 AM |
9441 | last = 0; |
| 9442 | } | |
| b140b010 | 9443 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9444 | { |
| 9445 | some_unused = 1; | |
| ba761f19 | 9446 | last = ref_from_discarded; |
| c5614fa4 AM |
9447 | } |
| 9448 | else | |
| 9449 | *drop = last; | |
| 9450 | } | |
| 9451 | ||
| 9452 | free (used); | |
| 9453 | ||
| 9454 | if (some_unused) | |
| 9455 | { | |
| 9456 | bfd_byte *contents, *src; | |
| 9457 | unsigned long off; | |
| d62b3684 | 9458 | Elf_Internal_Sym *sym; |
| ba761f19 | 9459 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9460 | |
| 9461 | /* Shuffle the toc contents, and at the same time convert the | |
| 9462 | skip array from booleans into offsets. */ | |
| 9463 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9464 | goto error_ret; | |
| 9465 | ||
| 9466 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9467 | ||
| 9468 | for (src = contents, off = 0, drop = skip; | |
| 9469 | src < contents + toc->size; | |
| 9470 | src += 8, ++drop) | |
| 9471 | { | |
| ba761f19 AM |
9472 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9473 | off += 8; | |
| c5614fa4 AM |
9474 | else if (off != 0) |
| 9475 | { | |
| 9476 | *drop = off; | |
| 9477 | memcpy (src - off, src, 8); | |
| 9478 | } | |
| 9479 | } | |
| 854b41e7 | 9480 | *drop = off; |
| c5614fa4 AM |
9481 | toc->rawsize = toc->size; |
| 9482 | toc->size = src - contents - off; | |
| 9483 | ||
| ba761f19 AM |
9484 | /* Adjust addends for relocs against the toc section sym, |
| 9485 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9486 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9487 | { | |
| 9488 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9489 | || discarded_section (sec)) |
| c5614fa4 AM |
9490 | continue; |
| 9491 | ||
| 9492 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9493 | info->keep_memory); |
| c5614fa4 AM |
9494 | if (relstart == NULL) |
| 9495 | goto error_ret; | |
| 9496 | ||
| 9497 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9498 | { | |
| 9499 | enum elf_ppc64_reloc_type r_type; | |
| 9500 | unsigned long r_symndx; | |
| 9501 | asection *sym_sec; | |
| 9502 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9503 | bfd_vma val; |
| c5614fa4 AM |
9504 | |
| 9505 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9506 | switch (r_type) | |
| 9507 | { | |
| 9508 | default: | |
| 9509 | continue; | |
| 9510 | ||
| 9511 | case R_PPC64_TOC16: | |
| 9512 | case R_PPC64_TOC16_LO: | |
| 9513 | case R_PPC64_TOC16_HI: | |
| 9514 | case R_PPC64_TOC16_HA: | |
| 9515 | case R_PPC64_TOC16_DS: | |
| 9516 | case R_PPC64_TOC16_LO_DS: | |
| 9517 | case R_PPC64_ADDR64: | |
| 9518 | break; | |
| 9519 | } | |
| 9520 | ||
| 9521 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9522 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9523 | r_symndx, ibfd)) | |
| 9524 | goto error_ret; | |
| 9525 | ||
| ba761f19 | 9526 | if (sym_sec != toc) |
| c5614fa4 AM |
9527 | continue; |
| 9528 | ||
| ba761f19 AM |
9529 | if (h != NULL) |
| 9530 | val = h->root.u.def.value; | |
| 9531 | else | |
| 9532 | { | |
| 9533 | val = sym->st_value; | |
| 9534 | if (val != 0) | |
| 9535 | local_toc_syms = TRUE; | |
| 9536 | } | |
| 9537 | ||
| 9538 | val += rel->r_addend; | |
| 854b41e7 AM |
9539 | |
| 9540 | if (val > toc->rawsize) | |
| 9541 | val = toc->rawsize; | |
| ba761f19 AM |
9542 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9543 | continue; | |
| 9544 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9545 | { | |
| 9546 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9547 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9548 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9549 | ||
| 9550 | switch (r_type) | |
| 9551 | { | |
| 9552 | case R_PPC64_TOC16_HA: | |
| 9553 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9554 | break; | |
| 9555 | ||
| 9556 | case R_PPC64_TOC16_LO_DS: | |
| 9557 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9558 | break; | |
| 9559 | ||
| 9560 | default: | |
| 28942f62 AM |
9561 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9562 | ppc_howto_init (); | |
| b140b010 | 9563 | info->callbacks->einfo |
| 695344c0 | 9564 | /* xgettext:c-format */ |
| 174d0a74 | 9565 | (_("%H: %s references " |
| b140b010 AM |
9566 | "optimized away TOC entry\n"), |
| 9567 | ibfd, sec, rel->r_offset, | |
| 9568 | ppc64_elf_howto_table[r_type]->name); | |
| 9569 | bfd_set_error (bfd_error_bad_value); | |
| 9570 | goto error_ret; | |
| ba761f19 AM |
9571 | } |
| 9572 | rel->r_addend = tocrel->r_addend; | |
| 9573 | elf_section_data (sec)->relocs = relstart; | |
| 9574 | continue; | |
| 9575 | } | |
| 9576 | ||
| 9577 | if (h != NULL || sym->st_value != 0) | |
| 9578 | continue; | |
| 854b41e7 AM |
9579 | |
| 9580 | rel->r_addend -= skip[val >> 3]; | |
| 9581 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9582 | } |
| 854b41e7 AM |
9583 | |
| 9584 | if (elf_section_data (sec)->relocs != relstart) | |
| 9585 | free (relstart); | |
| c5614fa4 AM |
9586 | } |
| 9587 | ||
| 9588 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9589 | but handle them anyway. */ | |
| df22d223 AM |
9590 | if (local_syms != NULL) |
| 9591 | for (sym = local_syms; | |
| 9592 | sym < local_syms + symtab_hdr->sh_info; | |
| 9593 | ++sym) | |
| 9594 | if (sym->st_value != 0 | |
| 9595 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9596 | { | |
| 9597 | unsigned long i; | |
| 854b41e7 | 9598 | |
| df22d223 AM |
9599 | if (sym->st_value > toc->rawsize) |
| 9600 | i = toc->rawsize >> 3; | |
| 9601 | else | |
| 9602 | i = sym->st_value >> 3; | |
| 854b41e7 | 9603 | |
| df22d223 AM |
9604 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9605 | { | |
| 9606 | if (local_toc_syms) | |
| 4eca0228 | 9607 | _bfd_error_handler |
| df22d223 AM |
9608 | (_("%s defined on removed toc entry"), |
| 9609 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9610 | do | |
| 9611 | ++i; | |
| 9612 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9613 | sym->st_value = (bfd_vma) i << 3; | |
| 9614 | } | |
| d62b3684 | 9615 | |
| df22d223 AM |
9616 | sym->st_value -= skip[i]; |
| 9617 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9618 | } | |
| c5614fa4 | 9619 | |
| 854b41e7 | 9620 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9621 | if (toc_inf.global_toc_syms) |
| 9622 | { | |
| 9623 | toc_inf.toc = toc; | |
| 9624 | toc_inf.skip = skip; | |
| 9625 | toc_inf.global_toc_syms = FALSE; | |
| 9626 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9627 | &toc_inf); | |
| 9628 | } | |
| 854b41e7 AM |
9629 | |
| 9630 | if (toc->reloc_count != 0) | |
| 9631 | { | |
| d4730f92 | 9632 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9633 | Elf_Internal_Rela *wrel; |
| 9634 | bfd_size_type sz; | |
| 9635 | ||
| 854b41e7 | 9636 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9637 | if (toc_relocs == NULL) |
| 9638 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9639 | info->keep_memory); | |
| 9640 | if (toc_relocs == NULL) | |
| 9641 | goto error_ret; | |
| 9642 | ||
| 425b145b AM |
9643 | wrel = toc_relocs; |
| 9644 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9645 | if ((skip[rel->r_offset >> 3] |
| 9646 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9647 | { |
| 9648 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9649 | wrel->r_info = rel->r_info; | |
| 9650 | wrel->r_addend = rel->r_addend; | |
| 9651 | ++wrel; | |
| 9652 | } | |
| 9653 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9654 | &local_syms, NULL, NULL)) | |
| 9655 | goto error_ret; | |
| 9656 | ||
| 425b145b AM |
9657 | elf_section_data (toc)->relocs = toc_relocs; |
| 9658 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9659 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9660 | sz = rel_hdr->sh_entsize; | |
| 9661 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9662 | } |
| c5614fa4 | 9663 | } |
| 28be611c AM |
9664 | else if (toc_relocs != NULL |
| 9665 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9666 | free (toc_relocs); |
| c5614fa4 AM |
9667 | |
| 9668 | if (local_syms != NULL | |
| 9669 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9670 | { | |
| 9671 | if (!info->keep_memory) | |
| 9672 | free (local_syms); | |
| 9673 | else | |
| 9674 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9675 | } | |
| 9676 | free (skip); | |
| 9677 | } | |
| 9678 | ||
| 9679 | return TRUE; | |
| 9680 | } | |
| 9681 | ||
| 1bbe0902 AM |
9682 | /* Return true iff input section I references the TOC using |
| 9683 | instructions limited to +/-32k offsets. */ | |
| 9684 | ||
| 9685 | bfd_boolean | |
| 9686 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9687 | { | |
| 9688 | return (is_ppc64_elf (i->owner) | |
| 9689 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9690 | } | |
| 9691 | ||
| 927be08e AM |
9692 | /* Allocate space for one GOT entry. */ |
| 9693 | ||
| 9694 | static void | |
| 9695 | allocate_got (struct elf_link_hash_entry *h, | |
| 9696 | struct bfd_link_info *info, | |
| 9697 | struct got_entry *gent) | |
| 9698 | { | |
| 9699 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9700 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9701 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9702 | ? 16 : 8); | |
| 9703 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9704 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9705 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9706 | ||
| 9707 | gent->got.offset = got->size; | |
| 9708 | got->size += entsize; | |
| 9709 | ||
| 19e08130 | 9710 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9711 | { |
| 33e44f2e | 9712 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9713 | htab->got_reli_size += rentsize; |
| 927be08e | 9714 | } |
| 0e1862bb | 9715 | else if ((bfd_link_pic (info) |
| f0158f44 AM |
9716 | || (htab->elf.dynamic_sections_created |
| 9717 | && h->dynindx != -1 | |
| 9718 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9719 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9720 | { |
| 19e08130 | 9721 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9722 | relgot->size += rentsize; |
| 927be08e AM |
9723 | } |
| 9724 | } | |
| 9725 | ||
| 7865406b AM |
9726 | /* This function merges got entries in the same toc group. */ |
| 9727 | ||
| 9728 | static void | |
| 9729 | merge_got_entries (struct got_entry **pent) | |
| 9730 | { | |
| 9731 | struct got_entry *ent, *ent2; | |
| 9732 | ||
| 9733 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9734 | if (!ent->is_indirect) | |
| 9735 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9736 | if (!ent2->is_indirect | |
| 9737 | && ent2->addend == ent->addend | |
| 9738 | && ent2->tls_type == ent->tls_type | |
| 9739 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9740 | { | |
| 9741 | ent2->is_indirect = TRUE; | |
| 9742 | ent2->got.ent = ent; | |
| 9743 | } | |
| 9744 | } | |
| 9745 | ||
| 46434633 | 9746 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9747 | |
| 9748 | static bfd_boolean | |
| 46434633 AM |
9749 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9750 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9751 | { |
| 9752 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9753 | ||
| 9754 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9755 | && ((info->dynamic_undefined_weak != 0 |
| 9756 | && h->root.type == bfd_link_hash_undefweak) | |
| 9757 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9758 | && h->dynindx == -1 |
| 9759 | && !h->forced_local | |
| 9760 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9761 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9762 | return TRUE; | |
| 9763 | } | |
| 9764 | ||
| 65f38f15 AM |
9765 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9766 | dynamic relocs. */ | |
| 5bd4f169 | 9767 | |
| b34976b6 | 9768 | static bfd_boolean |
| 4ce794b7 | 9769 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9770 | { |
| 65f38f15 AM |
9771 | struct bfd_link_info *info; |
| 9772 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9773 | asection *s; |
| 65f38f15 | 9774 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9775 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9776 | |
| e92d460e | 9777 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9778 | return TRUE; |
| 5bd4f169 | 9779 | |
| 65f38f15 AM |
9780 | info = (struct bfd_link_info *) inf; |
| 9781 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9782 | if (htab == NULL) |
| 9783 | return FALSE; | |
| 5bd4f169 | 9784 | |
| 951fd09b AM |
9785 | eh = (struct ppc_link_hash_entry *) h; |
| 9786 | /* Run through the TLS GD got entries first if we're changing them | |
| 9787 | to TPREL. */ | |
| e7b938ca | 9788 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9789 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9790 | if (gent->got.refcount > 0 | |
| 9791 | && (gent->tls_type & TLS_GD) != 0) | |
| 9792 | { | |
| 9793 | /* This was a GD entry that has been converted to TPREL. If | |
| 9794 | there happens to be a TPREL entry we can use that one. */ | |
| 9795 | struct got_entry *ent; | |
| 9796 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9797 | if (ent->got.refcount > 0 | |
| 9798 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9799 | && ent->addend == gent->addend |
| 9800 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9801 | { |
| 9802 | gent->got.refcount = 0; | |
| 9803 | break; | |
| 9804 | } | |
| 9805 | ||
| 9806 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9807 | if (gent->got.refcount != 0) | |
| 9808 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9809 | } | |
| 9810 | ||
| 7865406b AM |
9811 | /* Remove any list entry that won't generate a word in the GOT before |
| 9812 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9813 | entries. */ | |
| 0b8bcf0d AM |
9814 | pgent = &h->got.glist; |
| 9815 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9816 | if (gent->got.refcount > 0) |
| 7865406b AM |
9817 | { |
| 9818 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9819 | && !h->def_dynamic) | |
| 9820 | { | |
| 9821 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9822 | *pgent = gent->next; | |
| 9823 | } | |
| 9824 | else | |
| 9825 | pgent = &gent->next; | |
| 9826 | } | |
| 9827 | else | |
| 9828 | *pgent = gent->next; | |
| 9829 | ||
| 9830 | if (!htab->do_multi_toc) | |
| 9831 | merge_got_entries (&h->got.glist); | |
| 9832 | ||
| 9833 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9834 | if (!gent->is_indirect) | |
| 411e1bfb | 9835 | { |
| 46434633 AM |
9836 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9837 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9838 | return FALSE; |
| 65f38f15 | 9839 | |
| 0c8d6e5c | 9840 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9841 | abort (); |
| 0ffa91dd | 9842 | |
| 927be08e | 9843 | allocate_got (h, info, gent); |
| 411e1bfb | 9844 | } |
| 65f38f15 | 9845 | |
| 954b63d4 AM |
9846 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9847 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9848 | if (!htab->elf.dynamic_sections_created |
| 9849 | && h->type != STT_GNU_IFUNC) | |
| 9850 | eh->dyn_relocs = NULL; | |
| 9851 | ||
| 954b63d4 AM |
9852 | /* Also discard relocs on undefined weak syms with non-default |
| 9853 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 9854 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
9855 | eh->dyn_relocs = NULL; |
| 9856 | ||
| 8a2058b5 | 9857 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 9858 | { |
| 8a2058b5 AM |
9859 | struct elf_dyn_relocs *p, **pp; |
| 9860 | ||
| 57e7d118 AM |
9861 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9862 | dynamic pc-relative relocs against symbols which turn out to | |
| 9863 | be defined in regular objects. For the normal shared case, | |
| 9864 | discard space for relocs that have become local due to symbol | |
| 9865 | visibility changes. */ | |
| 9866 | ||
| 9867 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9868 | { |
| 57e7d118 AM |
9869 | /* Relocs that use pc_count are those that appear on a call |
| 9870 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9871 | can be generated via assembly. We want calls to | |
| 9872 | protected symbols to resolve directly to the function | |
| 9873 | rather than going via the plt. If people want function | |
| 9874 | pointer comparisons to work as expected then they should | |
| 9875 | avoid writing weird assembly. */ | |
| 9876 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9877 | { | |
| 57e7d118 AM |
9878 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9879 | { | |
| 9880 | p->count -= p->pc_count; | |
| 9881 | p->pc_count = 0; | |
| 9882 | if (p->count == 0) | |
| 9883 | *pp = p->next; | |
| 9884 | else | |
| 9885 | pp = &p->next; | |
| 9886 | } | |
| 9887 | } | |
| 65f38f15 | 9888 | |
| 954b63d4 | 9889 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 9890 | { |
| 46434633 AM |
9891 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9892 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9893 | return FALSE; |
| 5bd4f169 | 9894 | } |
| 65f38f15 | 9895 | } |
| 57e7d118 | 9896 | else if (h->type == STT_GNU_IFUNC) |
| dfbb6ac9 | 9897 | { |
| 8a2058b5 AM |
9898 | /* A plt entry is always created when making direct calls to |
| 9899 | an ifunc, even when building a static executable, but | |
| 9900 | that doesn't cover all cases. We may have only an ifunc | |
| 9901 | initialised function pointer for a given ifunc symbol. | |
| 9902 | ||
| 9903 | For ELFv2, dynamic relocations are not required when | |
| 9904 | generating a global entry PLT stub. */ | |
| 9905 | if (abiversion (info->output_bfd) >= 2) | |
| 9906 | { | |
| 9907 | if (global_entry_stub (h)) | |
| 9908 | eh->dyn_relocs = NULL; | |
| 9909 | } | |
| 9910 | ||
| 9911 | /* For ELFv1 we have function descriptors. Descriptors need | |
| 9912 | to be treated like PLT entries and thus have dynamic | |
| 9913 | relocations. One exception is when the function | |
| 9914 | descriptor is copied into .dynbss (which should only | |
| 9915 | happen with ancient versions of gcc). */ | |
| 9916 | else if (h->needs_copy) | |
| dfbb6ac9 | 9917 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9918 | } |
| 9919 | else if (ELIMINATE_COPY_RELOCS) | |
| 9920 | { | |
| 8a2058b5 | 9921 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9922 | symbols which turn out to need copy relocs or are not |
| 9923 | dynamic. */ | |
| f0158f44 AM |
9924 | if (!h->non_got_ref |
| 9925 | && !h->def_regular) | |
| 9926 | { | |
| 46434633 AM |
9927 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9928 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9929 | return FALSE; |
| dfbb6ac9 | 9930 | |
| f0158f44 AM |
9931 | if (h->dynindx == -1) |
| 9932 | eh->dyn_relocs = NULL; | |
| 9933 | } | |
| 9934 | else | |
| 8a2058b5 | 9935 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9936 | } |
| 9937 | ||
| 9938 | /* Finally, allocate space. */ | |
| 9939 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9940 | { | |
| 9941 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9942 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9943 | sreloc = htab->elf.irelplt; | |
| 9944 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9945 | } |
| 65f38f15 | 9946 | } |
| 57e7d118 AM |
9947 | |
| 9948 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9949 | && h->dynindx != -1) |
| 57e7d118 | 9950 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9951 | { |
| 57e7d118 AM |
9952 | struct plt_entry *pent; |
| 9953 | bfd_boolean doneone = FALSE; | |
| 9954 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9955 | if (pent->plt.refcount > 0) | |
| 9956 | { | |
| 9957 | if (!htab->elf.dynamic_sections_created | |
| 9958 | || h->dynindx == -1) | |
| 9959 | { | |
| 9960 | s = htab->elf.iplt; | |
| 9961 | pent->plt.offset = s->size; | |
| 9962 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9963 | s = htab->elf.irelplt; | |
| 9964 | } | |
| 9965 | else | |
| 9966 | { | |
| 9967 | /* If this is the first .plt entry, make room for the special | |
| 9968 | first entry. */ | |
| 9969 | s = htab->elf.splt; | |
| 9970 | if (s->size == 0) | |
| 9971 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9972 | |
| 57e7d118 | 9973 | pent->plt.offset = s->size; |
| 65f38f15 | 9974 | |
| 57e7d118 AM |
9975 | /* Make room for this entry. */ |
| 9976 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9977 | |
| 57e7d118 AM |
9978 | /* Make room for the .glink code. */ |
| 9979 | s = htab->glink; | |
| 9980 | if (s->size == 0) | |
| 9981 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9982 | if (htab->opd_abi) | |
| 9983 | { | |
| 9984 | /* We need bigger stubs past index 32767. */ | |
| 9985 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9986 | s->size += 4; | |
| 9987 | s->size += 2*4; | |
| 9988 | } | |
| 9989 | else | |
| 9990 | s->size += 4; | |
| 65f38f15 | 9991 | |
| 57e7d118 AM |
9992 | /* We also need to make an entry in the .rela.plt section. */ |
| 9993 | s = htab->elf.srelplt; | |
| 9994 | } | |
| 9995 | s->size += sizeof (Elf64_External_Rela); | |
| 9996 | doneone = TRUE; | |
| 9997 | } | |
| 9998 | else | |
| 9999 | pent->plt.offset = (bfd_vma) -1; | |
| 10000 | if (!doneone) | |
| 10001 | { | |
| 10002 | h->plt.plist = NULL; | |
| 10003 | h->needs_plt = 0; | |
| 10004 | } | |
| 65f38f15 | 10005 | } |
| 57e7d118 | 10006 | else |
| 65f38f15 | 10007 | { |
| 57e7d118 AM |
10008 | h->plt.plist = NULL; |
| 10009 | h->needs_plt = 0; | |
| 65f38f15 AM |
10010 | } |
| 10011 | ||
| b34976b6 | 10012 | return TRUE; |
| 65f38f15 AM |
10013 | } |
| 10014 | ||
| a345bc8d AM |
10015 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 10016 | to set up space for global entry stubs. These are put in glink, | |
| 10017 | after the branch table. */ | |
| 65f38f15 | 10018 | |
| b34976b6 | 10019 | static bfd_boolean |
| a345bc8d | 10020 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 10021 | { |
| a345bc8d AM |
10022 | struct bfd_link_info *info; |
| 10023 | struct ppc_link_hash_table *htab; | |
| 10024 | struct plt_entry *pent; | |
| 10025 | asection *s; | |
| 65f38f15 | 10026 | |
| a345bc8d AM |
10027 | if (h->root.type == bfd_link_hash_indirect) |
| 10028 | return TRUE; | |
| 65f38f15 | 10029 | |
| a345bc8d AM |
10030 | if (!h->pointer_equality_needed) |
| 10031 | return TRUE; | |
| 65f38f15 | 10032 | |
| a345bc8d AM |
10033 | if (h->def_regular) |
| 10034 | return TRUE; | |
| 65f38f15 | 10035 | |
| a345bc8d AM |
10036 | info = inf; |
| 10037 | htab = ppc_hash_table (info); | |
| 10038 | if (htab == NULL) | |
| 10039 | return FALSE; | |
| 10040 | ||
| 10041 | s = htab->glink; | |
| 10042 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 10043 | if (pent->plt.offset != (bfd_vma) -1 | |
| 10044 | && pent->addend == 0) | |
| 10045 | { | |
| afe397ea AM |
10046 | /* For ELFv2, if this symbol is not defined in a regular file |
| 10047 | and we are not generating a shared library or pie, then we | |
| 10048 | need to define the symbol in the executable on a call stub. | |
| 10049 | This is to avoid text relocations. */ | |
| a345bc8d | 10050 | s->size = (s->size + 15) & -16; |
| 8a2058b5 | 10051 | h->root.type = bfd_link_hash_defined; |
| afe397ea AM |
10052 | h->root.u.def.section = s; |
| 10053 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
10054 | s->size += 16; |
| 10055 | break; | |
| 10056 | } | |
| 10057 | return TRUE; | |
| 10058 | } | |
| 10059 | ||
| 10060 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 10061 | read-only sections. */ | |
| 10062 | ||
| 10063 | static bfd_boolean | |
| 10064 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 10065 | { | |
| 10066 | if (h->root.type == bfd_link_hash_indirect) | |
| 10067 | return TRUE; | |
| 10068 | ||
| 10069 | if (readonly_dynrelocs (h)) | |
| 10070 | { | |
| 10071 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 10072 | ||
| 10073 | /* Not an error, just cut short the traversal. */ | |
| 10074 | return FALSE; | |
| 65f38f15 | 10075 | } |
| b34976b6 | 10076 | return TRUE; |
| 65f38f15 AM |
10077 | } |
| 10078 | ||
| 10079 | /* Set the sizes of the dynamic sections. */ | |
| 10080 | ||
| b34976b6 | 10081 | static bfd_boolean |
| ee67d69a | 10082 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 10083 | struct bfd_link_info *info) |
| 65f38f15 AM |
10084 | { |
| 10085 | struct ppc_link_hash_table *htab; | |
| 10086 | bfd *dynobj; | |
| 10087 | asection *s; | |
| b34976b6 | 10088 | bfd_boolean relocs; |
| 65f38f15 | 10089 | bfd *ibfd; |
| 7865406b | 10090 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
10091 | |
| 10092 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
10093 | if (htab == NULL) |
| 10094 | return FALSE; | |
| 10095 | ||
| 65f38f15 AM |
10096 | dynobj = htab->elf.dynobj; |
| 10097 | if (dynobj == NULL) | |
| 10098 | abort (); | |
| 10099 | ||
| 10100 | if (htab->elf.dynamic_sections_created) | |
| 10101 | { | |
| 10102 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 10103 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 10104 | { |
| 3d4d4302 | 10105 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
10106 | if (s == NULL) |
| 10107 | abort (); | |
| eea6121a | 10108 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
10109 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 10110 | } | |
| 10111 | } | |
| 10112 | ||
| 10113 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 10114 | relocs. */ | |
| c72f2fb2 | 10115 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 10116 | { |
| 411e1bfb AM |
10117 | struct got_entry **lgot_ents; |
| 10118 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
10119 | struct plt_entry **local_plt; |
| 10120 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10121 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10122 | bfd_size_type locsymcount; |
| 10123 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10124 | |
| 0c8d6e5c | 10125 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10126 | continue; |
| 10127 | ||
| 10128 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10129 | { | |
| 19e08130 | 10130 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10131 | |
| 6edfbbad | 10132 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10133 | { |
| ec338859 AM |
10134 | if (!bfd_is_abs_section (p->sec) |
| 10135 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10136 | { | |
| 10137 | /* Input section has been discarded, either because | |
| 10138 | it is a copy of a linkonce section or due to | |
| 10139 | linker script /DISCARD/, so we'll be discarding | |
| 10140 | the relocs too. */ | |
| 10141 | } | |
| 248866a8 | 10142 | else if (p->count != 0) |
| ec338859 | 10143 | { |
| 19e08130 AM |
10144 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10145 | if (p->ifunc) | |
| 33e44f2e | 10146 | srel = htab->elf.irelplt; |
| eea6121a | 10147 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10148 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10149 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10150 | } |
| 65f38f15 AM |
10151 | } |
| 10152 | } | |
| 10153 | ||
| 411e1bfb AM |
10154 | lgot_ents = elf_local_got_ents (ibfd); |
| 10155 | if (!lgot_ents) | |
| 65f38f15 AM |
10156 | continue; |
| 10157 | ||
| 0ffa91dd | 10158 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10159 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10160 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10161 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10162 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10163 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10164 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10165 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10166 | { |
| 0b8bcf0d | 10167 | struct got_entry **pent, *ent; |
| 411e1bfb | 10168 | |
| 0b8bcf0d AM |
10169 | pent = lgot_ents; |
| 10170 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10171 | if (ent->got.refcount > 0) |
| 10172 | { | |
| e7b938ca | 10173 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10174 | { |
| 927be08e | 10175 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10176 | *pent = ent->next; |
| 411e1bfb AM |
10177 | } |
| 10178 | else | |
| 10179 | { | |
| 19e08130 AM |
10180 | unsigned int ent_size = 8; |
| 10181 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10182 | ||
| eea6121a | 10183 | ent->got.offset = s->size; |
| e7b938ca | 10184 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10185 | { |
| 19e08130 AM |
10186 | ent_size *= 2; |
| 10187 | rel_size *= 2; | |
| 10188 | } | |
| 10189 | s->size += ent_size; | |
| 10190 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10191 | { | |
| 33e44f2e | 10192 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10193 | htab->got_reli_size += rel_size; |
| 10194 | } | |
| 0e1862bb | 10195 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
10196 | { |
| 10197 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10198 | srel->size += rel_size; | |
| 927be08e | 10199 | } |
| 0b8bcf0d | 10200 | pent = &ent->next; |
| 411e1bfb AM |
10201 | } |
| 10202 | } | |
| 10203 | else | |
| 0b8bcf0d | 10204 | *pent = ent->next; |
| 65f38f15 | 10205 | } |
| e054468f AM |
10206 | |
| 10207 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10208 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10209 | { | |
| 10210 | struct plt_entry *ent; | |
| 10211 | ||
| 10212 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10213 | if (ent->plt.refcount > 0) | |
| 10214 | { | |
| 33e44f2e | 10215 | s = htab->elf.iplt; |
| e054468f | 10216 | ent->plt.offset = s->size; |
| b9e5796b | 10217 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10218 | |
| 33e44f2e | 10219 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10220 | } |
| 10221 | else | |
| 10222 | ent->plt.offset = (bfd_vma) -1; | |
| 10223 | } | |
| 65f38f15 AM |
10224 | } |
| 10225 | ||
| 10226 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10227 | sym dynamic relocs. */ | |
| 4ce794b7 | 10228 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
10229 | /* Stash the end of glink branch table. */ |
| 10230 | if (htab->glink != NULL) | |
| 10231 | htab->glink->rawsize = htab->glink->size; | |
| 10232 | ||
| 0e1862bb | 10233 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10234 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10235 | |
| 7865406b | 10236 | first_tlsld = NULL; |
| c72f2fb2 | 10237 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10238 | { |
| 7865406b AM |
10239 | struct got_entry *ent; |
| 10240 | ||
| 0c8d6e5c | 10241 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10242 | continue; |
| 10243 | ||
| 7865406b AM |
10244 | ent = ppc64_tlsld_got (ibfd); |
| 10245 | if (ent->got.refcount > 0) | |
| 102890f0 | 10246 | { |
| 7865406b | 10247 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10248 | { |
| 7865406b AM |
10249 | ent->is_indirect = TRUE; |
| 10250 | ent->got.ent = first_tlsld; | |
| 10251 | } | |
| 10252 | else | |
| 10253 | { | |
| 10254 | if (first_tlsld == NULL) | |
| 10255 | first_tlsld = ent; | |
| 10256 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10257 | ent->got.offset = s->size; | |
| 10258 | ent->owner = ibfd; | |
| 10259 | s->size += 16; | |
| 0e1862bb | 10260 | if (bfd_link_pic (info)) |
| 7865406b AM |
10261 | { |
| 10262 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10263 | srel->size += sizeof (Elf64_External_Rela); | |
| 10264 | } | |
| 102890f0 AM |
10265 | } |
| 10266 | } | |
| 10267 | else | |
| 7865406b | 10268 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10269 | } |
| 10270 | ||
| 65f38f15 AM |
10271 | /* We now have determined the sizes of the various dynamic sections. |
| 10272 | Allocate memory for them. */ | |
| b34976b6 | 10273 | relocs = FALSE; |
| 65f38f15 AM |
10274 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10275 | { | |
| 10276 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10277 | continue; | |
| 10278 | ||
| 4ce794b7 | 10279 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10280 | /* These haven't been allocated yet; don't strip. */ |
| 10281 | continue; | |
| 33e44f2e AM |
10282 | else if (s == htab->elf.sgot |
| 10283 | || s == htab->elf.splt | |
| 10284 | || s == htab->elf.iplt | |
| c456f082 | 10285 | || s == htab->glink |
| 5474d94f AM |
10286 | || s == htab->elf.sdynbss |
| 10287 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10288 | { |
| 10289 | /* Strip this section if we don't need it; see the | |
| 10290 | comment below. */ | |
| 5bd4f169 | 10291 | } |
| 58d180e8 AM |
10292 | else if (s == htab->glink_eh_frame) |
| 10293 | { | |
| 10294 | if (!bfd_is_abs_section (s->output_section)) | |
| 10295 | /* Not sized yet. */ | |
| 10296 | continue; | |
| 10297 | } | |
| 70cc837d | 10298 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10299 | { |
| c456f082 | 10300 | if (s->size != 0) |
| 5bd4f169 | 10301 | { |
| 33e44f2e | 10302 | if (s != htab->elf.srelplt) |
| b34976b6 | 10303 | relocs = TRUE; |
| 5bd4f169 AM |
10304 | |
| 10305 | /* We use the reloc_count field as a counter if we need | |
| 10306 | to copy relocs into the output file. */ | |
| 10307 | s->reloc_count = 0; | |
| 10308 | } | |
| 10309 | } | |
| 65f38f15 | 10310 | else |
| 5bd4f169 AM |
10311 | { |
| 10312 | /* It's not one of our sections, so don't allocate space. */ | |
| 10313 | continue; | |
| 10314 | } | |
| 10315 | ||
| eea6121a | 10316 | if (s->size == 0) |
| 5bd4f169 | 10317 | { |
| c456f082 AM |
10318 | /* If we don't need this section, strip it from the |
| 10319 | output file. This is mostly to handle .rela.bss and | |
| 10320 | .rela.plt. We must create both sections in | |
| 10321 | create_dynamic_sections, because they must be created | |
| 10322 | before the linker maps input sections to output | |
| 10323 | sections. The linker does that before | |
| 10324 | adjust_dynamic_symbol is called, and it is that | |
| 10325 | function which decides whether anything needs to go | |
| 10326 | into these sections. */ | |
| 8423293d | 10327 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10328 | continue; |
| 10329 | } | |
| 10330 | ||
| c456f082 | 10331 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10332 | continue; |
| 10333 | ||
| 65f38f15 AM |
10334 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10335 | here in case unused entries are not reclaimed before the | |
| 10336 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10337 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10338 | sections instead of garbage. | |
| 10339 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10340 | the GOT and .dynrelro. */ |
| eea6121a | 10341 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10342 | if (s->contents == NULL) |
| b34976b6 | 10343 | return FALSE; |
| 5bd4f169 AM |
10344 | } |
| 10345 | ||
| c72f2fb2 | 10346 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10347 | { |
| 0c8d6e5c | 10348 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10349 | continue; |
| 10350 | ||
| e717da7e | 10351 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10352 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10353 | { |
| eea6121a | 10354 | if (s->size == 0) |
| 8423293d | 10355 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10356 | else |
| 10357 | { | |
| eea6121a | 10358 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10359 | if (s->contents == NULL) |
| 10360 | return FALSE; | |
| 10361 | } | |
| 10362 | } | |
| 10363 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10364 | if (s != NULL) | |
| 10365 | { | |
| eea6121a | 10366 | if (s->size == 0) |
| 8423293d | 10367 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10368 | else |
| 10369 | { | |
| eea6121a | 10370 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10371 | if (s->contents == NULL) |
| 10372 | return FALSE; | |
| 10373 | relocs = TRUE; | |
| 10374 | s->reloc_count = 0; | |
| 10375 | } | |
| 10376 | } | |
| 10377 | } | |
| 10378 | ||
| e86ce104 | 10379 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10380 | { |
| e8910a83 AM |
10381 | bfd_boolean tls_opt; |
| 10382 | ||
| 5bd4f169 AM |
10383 | /* Add some entries to the .dynamic section. We fill in the |
| 10384 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10385 | must add the entries now so that we get the correct size for | |
| 10386 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10387 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10388 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10389 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10390 | |
| 0e1862bb | 10391 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10392 | { |
| dc810e39 | 10393 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10394 | return FALSE; |
| 5bd4f169 AM |
10395 | } |
| 10396 | ||
| 33e44f2e | 10397 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10398 | { |
| dc810e39 AM |
10399 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10400 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10401 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10402 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10403 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10404 | return FALSE; |
| 5bd4f169 AM |
10405 | } |
| 10406 | ||
| ee67d69a | 10407 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10408 | { |
| 10409 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10410 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10411 | return FALSE; |
| 19397422 AM |
10412 | } |
| 10413 | ||
| 7c9cf415 | 10414 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10415 | && htab->tls_get_addr_fd != NULL |
| 10416 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10417 | if (tls_opt || !htab->opd_abi) | |
| 10418 | { | |
| 10419 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10420 | return FALSE; | |
| 10421 | } | |
| a7f2871e | 10422 | |
| 5bd4f169 AM |
10423 | if (relocs) |
| 10424 | { | |
| dc810e39 AM |
10425 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10426 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10427 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10428 | return FALSE; |
| 5bd4f169 | 10429 | |
| 65f38f15 AM |
10430 | /* If any dynamic relocs apply to a read-only section, |
| 10431 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10432 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10433 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10434 | |
| 65f38f15 | 10435 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10436 | { |
| 65f38f15 | 10437 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10438 | return FALSE; |
| 5bd4f169 | 10439 | } |
| 5bd4f169 | 10440 | } |
| 5bd4f169 | 10441 | } |
| 65f38f15 | 10442 | #undef add_dynamic_entry |
| 5bd4f169 | 10443 | |
| b34976b6 | 10444 | return TRUE; |
| 5bd4f169 AM |
10445 | } |
| 10446 | ||
| a345bc8d AM |
10447 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10448 | ||
| 10449 | static bfd_boolean | |
| 10450 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10451 | { | |
| 10452 | if (h->plt.plist != NULL | |
| 10453 | && !h->def_regular | |
| 10454 | && !h->pointer_equality_needed) | |
| 10455 | return FALSE; | |
| 10456 | ||
| 10457 | return _bfd_elf_hash_symbol (h); | |
| 10458 | } | |
| 10459 | ||
| 721956f4 | 10460 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10461 | |
| 4ce794b7 AM |
10462 | static inline enum ppc_stub_type |
| 10463 | ppc_type_of_stub (asection *input_sec, | |
| 10464 | const Elf_Internal_Rela *rel, | |
| 10465 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10466 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10467 | bfd_vma destination, |
| 10468 | unsigned long local_off) | |
| 5bd4f169 | 10469 | { |
| 721956f4 AM |
10470 | struct ppc_link_hash_entry *h = *hash; |
| 10471 | bfd_vma location; | |
| 10472 | bfd_vma branch_offset; | |
| 10473 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10474 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10475 | |
| 721956f4 AM |
10476 | if (h != NULL) |
| 10477 | { | |
| e054468f | 10478 | struct plt_entry *ent; |
| 7fe2b9a6 | 10479 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10480 | if (h->oh != NULL |
| 10481 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10482 | { |
| 10483 | fdh = ppc_follow_link (h->oh); | |
| 10484 | *hash = fdh; | |
| 10485 | } | |
| 8387904d | 10486 | |
| e054468f AM |
10487 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10488 | if (ent->addend == rel->r_addend | |
| 10489 | && ent->plt.offset != (bfd_vma) -1) | |
| 10490 | { | |
| e054468f AM |
10491 | *plt_ent = ent; |
| 10492 | return ppc_stub_plt_call; | |
| 10493 | } | |
| 5bd4f169 | 10494 | |
| 7fe2b9a6 AM |
10495 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10496 | either a defined function descriptor or a defined entry symbol | |
| 10497 | in a regular object file, then it is pointless trying to make | |
| 10498 | any other type of stub. */ | |
| 854b41e7 AM |
10499 | if (!is_static_defined (&fdh->elf) |
| 10500 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10501 | return ppc_stub_none; |
| 5d1634d7 | 10502 | } |
| e054468f AM |
10503 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10504 | { | |
| 10505 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10506 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10507 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10508 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10509 | ||
| 10510 | if (local_plt[r_symndx] != NULL) | |
| 10511 | { | |
| 10512 | struct plt_entry *ent; | |
| 10513 | ||
| 10514 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10515 | if (ent->addend == rel->r_addend | |
| 10516 | && ent->plt.offset != (bfd_vma) -1) | |
| 10517 | { | |
| 10518 | *plt_ent = ent; | |
| 10519 | return ppc_stub_plt_call; | |
| 10520 | } | |
| 10521 | } | |
| 10522 | } | |
| 5d1634d7 | 10523 | |
| 721956f4 AM |
10524 | /* Determine where the call point is. */ |
| 10525 | location = (input_sec->output_offset | |
| 10526 | + input_sec->output_section->vma | |
| 10527 | + rel->r_offset); | |
| 5d1634d7 | 10528 | |
| 721956f4 AM |
10529 | branch_offset = destination - location; |
| 10530 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10531 | |
| 721956f4 AM |
10532 | /* Determine if a long branch stub is needed. */ |
| 10533 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10534 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10535 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10536 | |
| 6911b7dc | 10537 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10538 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10539 | is needed later. */ | |
| 10540 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10541 | |
| 721956f4 | 10542 | return ppc_stub_none; |
| 5d1634d7 AM |
10543 | } |
| 10544 | ||
| 794e51c0 AM |
10545 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10546 | to update a plt entry in one thread and have another thread see a | |
| 10547 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10548 | barrier in the call stub. One solution is to make the load of the | |
| 10549 | toc word seem to appear to depend on the load of the function entry | |
| 10550 | word. Another solution is to test for r2 being zero, and branch to | |
| 10551 | the appropriate glink entry if so. | |
| 10552 | ||
| 10553 | . fake dep barrier compare | |
| 71a39c98 AM |
10554 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10555 | . mtctr 12 mtctr 12 | |
| 10556 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10557 | . add 2,2,11 cmpldi 2,0 |
| 10558 | . ld 2,xxx+8(2) bnectr+ | |
| 10559 | . bctr b <glink_entry> | |
| 10560 | ||
| 10561 | The solution involving the compare turns out to be faster, so | |
| 10562 | that's what we use unless the branch won't reach. */ | |
| 10563 | ||
| 10564 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10565 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10566 | |
| 5d1634d7 AM |
10567 | #define PPC_LO(v) ((v) & 0xffff) |
| 10568 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10569 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10570 | ||
| 794e51c0 AM |
10571 | static inline unsigned int |
| 10572 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10573 | struct ppc_stub_hash_entry *stub_entry, | |
| 10574 | bfd_vma off) | |
| 10575 | { | |
| b9e5796b AM |
10576 | unsigned size = 12; |
| 10577 | ||
| 10578 | if (ALWAYS_EMIT_R2SAVE | |
| 10579 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10580 | size += 4; | |
| 10581 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10582 | size += 4; |
| b9e5796b AM |
10583 | if (htab->opd_abi) |
| 10584 | { | |
| 10585 | size += 4; | |
| e7d1c40c | 10586 | if (htab->params->plt_static_chain) |
| b9e5796b | 10587 | size += 4; |
| bd4d2eaa AM |
10588 | if (htab->params->plt_thread_safe |
| 10589 | && htab->elf.dynamic_sections_created | |
| 10590 | && stub_entry->h != NULL | |
| 10591 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10592 | size += 8; |
| e7d1c40c | 10593 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10594 | size += 4; |
| 10595 | } | |
| 794e51c0 AM |
10596 | if (stub_entry->h != NULL |
| 10597 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10598 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10599 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10600 | { |
| 10601 | size += 7 * 4; | |
| 10602 | if (ALWAYS_EMIT_R2SAVE | |
| 10603 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10604 | size += 6 * 4; | |
| 10605 | } | |
| 794e51c0 AM |
10606 | return size; |
| 10607 | } | |
| 10608 | ||
| 10609 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10610 | then return the padding needed to do so. */ | |
| 10611 | static inline unsigned int | |
| 10612 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10613 | struct ppc_stub_hash_entry *stub_entry, | |
| 10614 | bfd_vma plt_off) | |
| 10615 | { | |
| e7d1c40c | 10616 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10617 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10618 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10619 | |
| 10620 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10621 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10622 | return stub_align - (stub_off & (stub_align - 1)); |
| 10623 | return 0; | |
| 10624 | } | |
| 10625 | ||
| 10626 | /* Build a .plt call stub. */ | |
| 10627 | ||
| 10628 | static inline bfd_byte * | |
| 10629 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10630 | struct ppc_stub_hash_entry *stub_entry, | |
| 10631 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10632 | { | |
| e7d1c40c | 10633 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10634 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10635 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10636 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10637 | && htab->elf.dynamic_sections_created | |
| 10638 | && stub_entry->h != NULL | |
| 10639 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10640 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10641 | bfd_vma cmp_branch_off = 0; | |
| 10642 | ||
| 10643 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10644 | && plt_load_toc |
| 794e51c0 | 10645 | && plt_thread_safe |
| bd4d2eaa AM |
10646 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10647 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10648 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10649 | { |
| 10650 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10651 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10652 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10653 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10654 | bfd_vma to, from; | |
| 10655 | ||
| 68d62958 AM |
10656 | if (pltindex > 32768) |
| 10657 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10658 | to = (glinkoff |
| 10659 | + htab->glink->output_offset | |
| 10660 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10661 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10662 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10663 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10664 | + 4 * (PPC_HA (offset) != 0) | |
| 10665 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10666 | != PPC_HA (offset)) | |
| 10667 | + 4 * (plt_static_chain != 0) | |
| 10668 | + 20 | |
| 6f20ed8a AM |
10669 | + stub_entry->group->stub_sec->output_offset |
| 10670 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10671 | cmp_branch_off = to - from; |
| 10672 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10673 | } | |
| 10674 | ||
| ac2df442 AM |
10675 | if (PPC_HA (offset) != 0) |
| 10676 | { | |
| 176a0d42 AM |
10677 | if (r != NULL) |
| 10678 | { | |
| 794e51c0 AM |
10679 | if (ALWAYS_EMIT_R2SAVE |
| 10680 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10681 | r[0].r_offset += 4; | |
| 176a0d42 | 10682 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10683 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10684 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10685 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10686 | if (plt_load_toc) |
| 176a0d42 | 10687 | { |
| b9e5796b | 10688 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10689 | { |
| b9e5796b AM |
10690 | r[2].r_offset = r[1].r_offset + 4; |
| 10691 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10692 | r[2].r_addend = r[0].r_addend; | |
| 10693 | } | |
| 10694 | else | |
| 10695 | { | |
| 10696 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10697 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10698 | r[2].r_addend = r[0].r_addend + 8; | |
| 10699 | if (plt_static_chain) | |
| 10700 | { | |
| 10701 | r[3].r_offset = r[2].r_offset + 4; | |
| 10702 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10703 | r[3].r_addend = r[0].r_addend + 16; | |
| 10704 | } | |
| c7131b65 | 10705 | } |
| 176a0d42 AM |
10706 | } |
| 10707 | } | |
| 794e51c0 AM |
10708 | if (ALWAYS_EMIT_R2SAVE |
| 10709 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10710 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10711 | if (plt_load_toc) |
| 10712 | { | |
| 10713 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10714 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10715 | } | |
| 10716 | else | |
| 10717 | { | |
| 10718 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10719 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10720 | } | |
| b9e5796b AM |
10721 | if (plt_load_toc |
| 10722 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10723 | { |
| 71a39c98 | 10724 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10725 | offset = 0; |
| 10726 | } | |
| 71a39c98 | 10727 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10728 | if (plt_load_toc) |
| 794e51c0 | 10729 | { |
| b9e5796b AM |
10730 | if (use_fake_dep) |
| 10731 | { | |
| 10732 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10733 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10734 | } | |
| 10735 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10736 | if (plt_static_chain) | |
| 10737 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10738 | } |
| ac2df442 AM |
10739 | } |
| 10740 | else | |
| 10741 | { | |
| 176a0d42 AM |
10742 | if (r != NULL) |
| 10743 | { | |
| 794e51c0 AM |
10744 | if (ALWAYS_EMIT_R2SAVE |
| 10745 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10746 | r[0].r_offset += 4; | |
| 176a0d42 | 10747 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10748 | if (plt_load_toc) |
| 176a0d42 | 10749 | { |
| b9e5796b | 10750 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10751 | { |
| b9e5796b AM |
10752 | r[1].r_offset = r[0].r_offset + 4; |
| 10753 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10754 | r[1].r_addend = r[0].r_addend; | |
| 10755 | } | |
| 10756 | else | |
| 10757 | { | |
| 10758 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10759 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10760 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10761 | if (plt_static_chain) | |
| 10762 | { | |
| 10763 | r[2].r_offset = r[1].r_offset + 4; | |
| 10764 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10765 | r[2].r_addend = r[0].r_addend + 8; | |
| 10766 | } | |
| c7131b65 | 10767 | } |
| 176a0d42 AM |
10768 | } |
| 10769 | } | |
| 794e51c0 AM |
10770 | if (ALWAYS_EMIT_R2SAVE |
| 10771 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10772 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10773 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10774 | if (plt_load_toc |
| 10775 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10776 | { |
| 10777 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10778 | offset = 0; | |
| 10779 | } | |
| 71a39c98 | 10780 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10781 | if (plt_load_toc) |
| 794e51c0 | 10782 | { |
| b9e5796b AM |
10783 | if (use_fake_dep) |
| 10784 | { | |
| 10785 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10786 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10787 | } | |
| 10788 | if (plt_static_chain) | |
| 10789 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10790 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10791 | } |
| ac2df442 | 10792 | } |
| b9e5796b | 10793 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10794 | { |
| 10795 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10796 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10797 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10798 | } |
| 10799 | else | |
| 10800 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10801 | return p; |
| 10802 | } | |
| 10803 | ||
| a7f2871e AM |
10804 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10805 | ||
| 10806 | #define LD_R11_0R3 0xe9630000 | |
| 10807 | #define LD_R12_0R3 0xe9830000 | |
| 10808 | #define MR_R0_R3 0x7c601b78 | |
| 10809 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10810 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10811 | #define BEQLR 0x4d820020 | |
| 10812 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10813 | #define STD_R11_0R1 0xf9610000 |
| 10814 | #define BCTRL 0x4e800421 | |
| 10815 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10816 | #define MTLR_R11 0x7d6803a6 |
| 10817 | ||
| 10818 | static inline bfd_byte * | |
| 794e51c0 AM |
10819 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10820 | struct ppc_stub_hash_entry *stub_entry, | |
| 10821 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10822 | { |
| e7d1c40c | 10823 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10824 | |
| a7f2871e AM |
10825 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10826 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10827 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10828 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10829 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10830 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10831 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
10832 | if (r != NULL) |
| 10833 | r[0].r_offset += 7 * 4; | |
| 10834 | if (!ALWAYS_EMIT_R2SAVE | |
| 10835 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 10836 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 10837 | ||
| a7f2871e | 10838 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 10839 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10840 | |
| 10841 | if (r != NULL) | |
| f378ab09 | 10842 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 10843 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10844 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10845 | ||
| a078d95a | 10846 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10847 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10848 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10849 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10850 | ||
| 10851 | return p; | |
| 10852 | } | |
| 10853 | ||
| 176a0d42 AM |
10854 | static Elf_Internal_Rela * |
| 10855 | get_relocs (asection *sec, int count) | |
| 10856 | { | |
| 10857 | Elf_Internal_Rela *relocs; | |
| 10858 | struct bfd_elf_section_data *elfsec_data; | |
| 10859 | ||
| 10860 | elfsec_data = elf_section_data (sec); | |
| 10861 | relocs = elfsec_data->relocs; | |
| 10862 | if (relocs == NULL) | |
| 10863 | { | |
| 10864 | bfd_size_type relsize; | |
| 10865 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10866 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10867 | if (relocs == NULL) | |
| 10868 | return NULL; | |
| 10869 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10870 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10871 | sizeof (Elf_Internal_Shdr)); | |
| 10872 | if (elfsec_data->rela.hdr == NULL) | |
| 10873 | return NULL; | |
| 10874 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10875 | * sizeof (Elf64_External_Rela)); | |
| 10876 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10877 | sec->reloc_count = 0; |
| 10878 | } | |
| 10879 | relocs += sec->reloc_count; | |
| 10880 | sec->reloc_count += count; | |
| 10881 | return relocs; | |
| 10882 | } | |
| 10883 | ||
| aa374f67 | 10884 | static bfd_vma |
| 25f53a85 | 10885 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10886 | struct ppc_stub_hash_entry *stub_entry) |
| 10887 | { | |
| 25f53a85 | 10888 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10889 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10890 | |
| 10891 | if (r2off == 0) | |
| 10892 | { | |
| 10893 | /* Support linking -R objects. Get the toc pointer from the | |
| 10894 | opd entry. */ | |
| 10895 | char buf[8]; | |
| b9e5796b AM |
10896 | if (!htab->opd_abi) |
| 10897 | return r2off; | |
| aa374f67 AM |
10898 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10899 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10900 | ||
| 10901 | if (strcmp (opd->name, ".opd") != 0 | |
| 10902 | || opd->reloc_count != 0) | |
| 10903 | { | |
| bc30df16 | 10904 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10905 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10906 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10907 | return (bfd_vma) -1; |
| aa374f67 AM |
10908 | } |
| 10909 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10910 | return (bfd_vma) -1; |
| aa374f67 | 10911 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10912 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10913 | } |
| 6f20ed8a | 10914 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10915 | return r2off; |
| 10916 | } | |
| 10917 | ||
| b34976b6 | 10918 | static bfd_boolean |
| 4ce794b7 | 10919 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10920 | { |
| 721956f4 AM |
10921 | struct ppc_stub_hash_entry *stub_entry; |
| 10922 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10923 | struct bfd_link_info *info; |
| 10924 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10925 | bfd_byte *loc; |
| 10926 | bfd_byte *p; | |
| ee75fd95 | 10927 | bfd_vma dest, off; |
| 721956f4 | 10928 | int size; |
| 176a0d42 | 10929 | Elf_Internal_Rela *r; |
| e054468f | 10930 | asection *plt; |
| 5d1634d7 | 10931 | |
| 721956f4 AM |
10932 | /* Massage our args to the form they really have. */ |
| 10933 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10934 | info = in_arg; |
| 5d1634d7 | 10935 | |
| 5d1634d7 | 10936 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10937 | if (htab == NULL) |
| 10938 | return FALSE; | |
| 5d1634d7 | 10939 | |
| 721956f4 | 10940 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10941 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10942 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10943 | |
| 4ce794b7 | 10944 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10945 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10946 | { |
| 721956f4 | 10947 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10948 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10949 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10950 | dest = (stub_entry->target_value |
| 10951 | + stub_entry->target_section->output_offset | |
| 10952 | + stub_entry->target_section->output_section->vma); | |
| 10953 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10954 | off = dest; | |
| 5d1634d7 | 10955 | |
| 721956f4 AM |
10956 | /* And this is where we are coming from. */ |
| 10957 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10958 | + stub_entry->group->stub_sec->output_offset |
| 10959 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10960 | |
| ac2df442 AM |
10961 | size = 4; |
| 10962 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10963 | { |
| 25f53a85 | 10964 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10965 | |
| a7c49797 | 10966 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10967 | { |
| 10968 | htab->stub_error = TRUE; | |
| 10969 | return FALSE; | |
| 10970 | } | |
| e7d1c40c | 10971 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10972 | loc += 4; |
| a7c49797 | 10973 | size = 8; |
| ac2df442 AM |
10974 | if (PPC_HA (r2off) != 0) |
| 10975 | { | |
| e7d1c40c AM |
10976 | bfd_put_32 (htab->params->stub_bfd, |
| 10977 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10978 | loc += 4; |
| a7c49797 AM |
10979 | size += 4; |
| 10980 | } | |
| 10981 | if (PPC_LO (r2off) != 0) | |
| 10982 | { | |
| 10983 | bfd_put_32 (htab->params->stub_bfd, | |
| 10984 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10985 | loc += 4; | |
| 10986 | size += 4; | |
| ac2df442 | 10987 | } |
| ac2df442 | 10988 | off -= size - 4; |
| ad8e1ba5 | 10989 | } |
| e7d1c40c | 10990 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10991 | |
| 5c3dead3 AM |
10992 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10993 | { | |
| bc30df16 AM |
10994 | info->callbacks->einfo |
| 10995 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10996 | stub_entry->root.string); | |
| 5c3dead3 AM |
10997 | htab->stub_error = TRUE; |
| 10998 | return FALSE; | |
| 10999 | } | |
| ee75fd95 AM |
11000 | |
| 11001 | if (info->emitrelocations) | |
| 11002 | { | |
| 6f20ed8a | 11003 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
11004 | if (r == NULL) |
| 11005 | return FALSE; | |
| 6f20ed8a | 11006 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
11007 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 11008 | r->r_addend = dest; | |
| 11009 | if (stub_entry->h != NULL) | |
| 11010 | { | |
| 11011 | struct elf_link_hash_entry **hashes; | |
| 11012 | unsigned long symndx; | |
| 11013 | struct ppc_link_hash_entry *h; | |
| 11014 | ||
| e7d1c40c | 11015 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
11016 | if (hashes == NULL) |
| 11017 | { | |
| 11018 | bfd_size_type hsize; | |
| 11019 | ||
| 11020 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 11021 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
11022 | if (hashes == NULL) |
| 11023 | return FALSE; | |
| e7d1c40c | 11024 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
11025 | htab->stub_globals = 1; |
| 11026 | } | |
| 11027 | symndx = htab->stub_globals++; | |
| 11028 | h = stub_entry->h; | |
| 11029 | hashes[symndx] = &h->elf; | |
| 11030 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 11031 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 11032 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
11033 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 11034 | /* H is an opd symbol. The addend must be zero. */ | |
| 11035 | r->r_addend = 0; | |
| 11036 | else | |
| 11037 | { | |
| 11038 | off = (h->elf.root.u.def.value | |
| 11039 | + h->elf.root.u.def.section->output_offset | |
| 11040 | + h->elf.root.u.def.section->output_section->vma); | |
| 11041 | r->r_addend -= off; | |
| 11042 | } | |
| 11043 | } | |
| 11044 | } | |
| 721956f4 | 11045 | break; |
| e86ce104 | 11046 | |
| 721956f4 | 11047 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 11048 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
11049 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 11050 | stub_entry->root.string + 9, | |
| b34976b6 | 11051 | FALSE, FALSE); |
| 721956f4 AM |
11052 | if (br_entry == NULL) |
| 11053 | { | |
| 8de848d8 | 11054 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 11055 | stub_entry->root.string); |
| b34976b6 AM |
11056 | htab->stub_error = TRUE; |
| 11057 | return FALSE; | |
| 721956f4 AM |
11058 | } |
| 11059 | ||
| 176a0d42 AM |
11060 | dest = (stub_entry->target_value |
| 11061 | + stub_entry->target_section->output_offset | |
| 11062 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
11063 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 11064 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 11065 | |
| 176a0d42 | 11066 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 11067 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 11068 | |
| f94498ff | 11069 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 11070 | { |
| f94498ff | 11071 | br_entry->iter = 0; |
| 84f5d08e | 11072 | |
| f94498ff | 11073 | if (htab->relbrlt != NULL) |
| 84f5d08e | 11074 | { |
| f94498ff AM |
11075 | /* Create a reloc for the branch lookup table entry. */ |
| 11076 | Elf_Internal_Rela rela; | |
| 11077 | bfd_byte *rl; | |
| 11078 | ||
| 11079 | rela.r_offset = (br_entry->offset | |
| 11080 | + htab->brlt->output_offset | |
| 11081 | + htab->brlt->output_section->vma); | |
| 11082 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11083 | rela.r_addend = dest; |
| f94498ff AM |
11084 | |
| 11085 | rl = htab->relbrlt->contents; | |
| 11086 | rl += (htab->relbrlt->reloc_count++ | |
| 11087 | * sizeof (Elf64_External_Rela)); | |
| 11088 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 11089 | } | |
| 11090 | else if (info->emitrelocations) | |
| 11091 | { | |
| 176a0d42 AM |
11092 | r = get_relocs (htab->brlt, 1); |
| 11093 | if (r == NULL) | |
| 11094 | return FALSE; | |
| 11095 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 11096 | normal reloc processing. Symbols and offsets are not | |
| 11097 | translated from input file to output file form, so | |
| 11098 | set up the offset per the output file. */ | |
| f94498ff AM |
11099 | r->r_offset = (br_entry->offset |
| 11100 | + htab->brlt->output_offset | |
| 11101 | + htab->brlt->output_section->vma); | |
| 11102 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11103 | r->r_addend = dest; |
| 84f5d08e | 11104 | } |
| 84f5d08e | 11105 | } |
| 721956f4 | 11106 | |
| 176a0d42 AM |
11107 | dest = (br_entry->offset |
| 11108 | + htab->brlt->output_offset | |
| 11109 | + htab->brlt->output_section->vma); | |
| 11110 | ||
| 11111 | off = (dest | |
| 4ce794b7 | 11112 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 11113 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11114 | |
| ad8e1ba5 | 11115 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11116 | { |
| 25f53a85 | 11117 | info->callbacks->einfo |
| bc30df16 | 11118 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 11119 | stub_entry->root.string); |
| 5d1634d7 | 11120 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11121 | htab->stub_error = TRUE; |
| 11122 | return FALSE; | |
| 5d1634d7 | 11123 | } |
| 41bd81ab | 11124 | |
| 176a0d42 AM |
11125 | if (info->emitrelocations) |
| 11126 | { | |
| 6f20ed8a | 11127 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11128 | if (r == NULL) |
| 11129 | return FALSE; | |
| 6f20ed8a | 11130 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11131 | if (bfd_big_endian (info->output_bfd)) |
| 11132 | r[0].r_offset += 2; | |
| 00f412ee | 11133 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11134 | r[0].r_offset += 4; |
| 11135 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11136 | r[0].r_addend = dest; | |
| 11137 | if (PPC_HA (off) != 0) | |
| 11138 | { | |
| 11139 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11140 | r[1].r_offset = r[0].r_offset + 4; | |
| 11141 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11142 | r[1].r_addend = r[0].r_addend; | |
| 11143 | } | |
| 11144 | } | |
| 11145 | ||
| 00f412ee | 11146 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11147 | { |
| 176a0d42 | 11148 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11149 | { |
| 11150 | size = 16; | |
| e7d1c40c | 11151 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11152 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11153 | loc += 4; |
| e7d1c40c | 11154 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11155 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11156 | } |
| 11157 | else | |
| 11158 | { | |
| 11159 | size = 12; | |
| e7d1c40c AM |
11160 | bfd_put_32 (htab->params->stub_bfd, |
| 11161 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 11162 | } |
| ad8e1ba5 AM |
11163 | } |
| 11164 | else | |
| 11165 | { | |
| 25f53a85 | 11166 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11167 | |
| a7c49797 | 11168 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11169 | { |
| 11170 | htab->stub_error = TRUE; | |
| 11171 | return FALSE; | |
| 11172 | } | |
| ad8e1ba5 | 11173 | |
| e7d1c40c | 11174 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 11175 | loc += 4; |
| 00f412ee | 11176 | size = 16; |
| 176a0d42 | 11177 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11178 | { |
| 11179 | size += 4; | |
| e7d1c40c | 11180 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11181 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11182 | loc += 4; |
| e7d1c40c | 11183 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11184 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11185 | } |
| 11186 | else | |
| e7d1c40c | 11187 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
11188 | |
| 11189 | if (PPC_HA (r2off) != 0) | |
| 11190 | { | |
| 11191 | size += 4; | |
| 00f412ee | 11192 | loc += 4; |
| e7d1c40c AM |
11193 | bfd_put_32 (htab->params->stub_bfd, |
| 11194 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
11195 | } |
| 11196 | if (PPC_LO (r2off) != 0) | |
| 11197 | { | |
| 11198 | size += 4; | |
| ac2df442 | 11199 | loc += 4; |
| e7d1c40c AM |
11200 | bfd_put_32 (htab->params->stub_bfd, |
| 11201 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 11202 | } |
| ad8e1ba5 AM |
11203 | } |
| 11204 | loc += 4; | |
| e7d1c40c | 11205 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 11206 | loc += 4; |
| e7d1c40c | 11207 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 11208 | break; |
| 5d1634d7 | 11209 | |
| 721956f4 | 11210 | case ppc_stub_plt_call: |
| 794e51c0 | 11211 | case ppc_stub_plt_call_r2save: |
| e054468f | 11212 | if (stub_entry->h != NULL |
| b31867b6 AM |
11213 | && stub_entry->h->is_func_descriptor |
| 11214 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11215 | { |
| b31867b6 AM |
11216 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11217 | ||
| 11218 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11219 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11220 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11221 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11222 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11223 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11224 | } |
| 11225 | ||
| 721956f4 | 11226 | /* Now build the stub. */ |
| e054468f | 11227 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11228 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11229 | abort (); |
| 11230 | ||
| 33e44f2e | 11231 | plt = htab->elf.splt; |
| 25f23106 AM |
11232 | if (!htab->elf.dynamic_sections_created |
| 11233 | || stub_entry->h == NULL | |
| 11234 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11235 | plt = htab->elf.iplt; |
| e054468f AM |
11236 | |
| 11237 | dest += plt->output_offset + plt->output_section->vma; | |
| 11238 | ||
| 11239 | if (stub_entry->h == NULL | |
| 11240 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11241 | { | |
| 11242 | Elf_Internal_Rela rela; | |
| 11243 | bfd_byte *rl; | |
| 11244 | ||
| 11245 | rela.r_offset = dest; | |
| ee67d69a AM |
11246 | if (htab->opd_abi) |
| 11247 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11248 | else | |
| 11249 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11250 | rela.r_addend = (stub_entry->target_value |
| 11251 | + stub_entry->target_section->output_offset | |
| 11252 | + stub_entry->target_section->output_section->vma); | |
| 11253 | ||
| 33e44f2e AM |
11254 | rl = (htab->elf.irelplt->contents |
| 11255 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11256 | * sizeof (Elf64_External_Rela))); |
| 11257 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f | 11258 | stub_entry->plt_ent->plt.offset |= 1; |
| 82e66161 | 11259 | htab->local_ifunc_resolver = 1; |
| e054468f | 11260 | } |
| 176a0d42 AM |
11261 | |
| 11262 | off = (dest | |
| e054468f | 11263 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11264 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11265 | |
| ad8e1ba5 | 11266 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11267 | { |
| 25f53a85 | 11268 | info->callbacks->einfo |
| 695344c0 | 11269 | /* xgettext:c-format */ |
| bc30df16 | 11270 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11271 | stub_entry->h != NULL |
| 11272 | ? stub_entry->h->elf.root.root.string | |
| 11273 | : "<local sym>"); | |
| 721956f4 | 11274 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11275 | htab->stub_error = TRUE; |
| 11276 | return FALSE; | |
| 721956f4 AM |
11277 | } |
| 11278 | ||
| e7d1c40c | 11279 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11280 | { |
| 11281 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11282 | ||
| 6f20ed8a AM |
11283 | stub_entry->group->stub_sec->size += pad; |
| 11284 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11285 | loc += pad; |
| 11286 | } | |
| 11287 | ||
| 176a0d42 AM |
11288 | r = NULL; |
| 11289 | if (info->emitrelocations) | |
| 11290 | { | |
| 6f20ed8a | 11291 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11292 | ((PPC_HA (off) != 0) |
| 11293 | + (htab->opd_abi | |
| e7d1c40c | 11294 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11295 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11296 | : 1))); | |
| 176a0d42 AM |
11297 | if (r == NULL) |
| 11298 | return FALSE; | |
| 6f20ed8a | 11299 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11300 | if (bfd_big_endian (info->output_bfd)) |
| 11301 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11302 | r[0].r_addend = dest; |
| 11303 | } | |
| a7f2871e AM |
11304 | if (stub_entry->h != NULL |
| 11305 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11306 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11307 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11308 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11309 | else |
| 794e51c0 | 11310 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11311 | size = p - loc; |
| 11312 | break; | |
| 11313 | ||
| a4b6fadd AM |
11314 | case ppc_stub_save_res: |
| 11315 | return TRUE; | |
| 11316 | ||
| 721956f4 AM |
11317 | default: |
| 11318 | BFD_FAIL (); | |
| b34976b6 | 11319 | return FALSE; |
| 721956f4 AM |
11320 | } |
| 11321 | ||
| 6f20ed8a | 11322 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11323 | |
| e7d1c40c | 11324 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11325 | { |
| 11326 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11327 | size_t len1, len2; |
| 11328 | char *name; | |
| 11329 | const char *const stub_str[] = { "long_branch", | |
| 11330 | "long_branch_r2off", | |
| 11331 | "plt_branch", | |
| 11332 | "plt_branch_r2off", | |
| 794e51c0 | 11333 | "plt_call", |
| ee75fd95 AM |
11334 | "plt_call" }; |
| 11335 | ||
| 11336 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11337 | len2 = strlen (stub_entry->root.string); | |
| 11338 | name = bfd_malloc (len1 + len2 + 2); | |
| 11339 | if (name == NULL) | |
| 11340 | return FALSE; | |
| 11341 | memcpy (name, stub_entry->root.string, 9); | |
| 11342 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11343 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11344 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11345 | if (h == NULL) |
| 11346 | return FALSE; | |
| 11347 | if (h->root.type == bfd_link_hash_new) | |
| 11348 | { | |
| 11349 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11350 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11351 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11352 | h->ref_regular = 1; |
| 11353 | h->def_regular = 1; | |
| 11354 | h->ref_regular_nonweak = 1; | |
| 11355 | h->forced_local = 1; | |
| 11356 | h->non_elf = 0; | |
| 2ec55de3 | 11357 | h->root.linker_def = 1; |
| 97b639ba AM |
11358 | } |
| 11359 | } | |
| 11360 | ||
| b34976b6 | 11361 | return TRUE; |
| 721956f4 AM |
11362 | } |
| 11363 | ||
| 11364 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11365 | we know stub section sizes, and select plt_branch stubs where | |
| 11366 | long_branch stubs won't do. */ | |
| 11367 | ||
| b34976b6 | 11368 | static bfd_boolean |
| 4ce794b7 | 11369 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11370 | { |
| 11371 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11372 | struct bfd_link_info *info; |
| 721956f4 AM |
11373 | struct ppc_link_hash_table *htab; |
| 11374 | bfd_vma off; | |
| 11375 | int size; | |
| 11376 | ||
| 11377 | /* Massage our args to the form they really have. */ | |
| 11378 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11379 | info = in_arg; |
| 11380 | ||
| 11381 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11382 | if (htab == NULL) |
| 11383 | return FALSE; | |
| 721956f4 | 11384 | |
| a4b6fadd AM |
11385 | if (stub_entry->h != NULL |
| 11386 | && stub_entry->h->save_res | |
| 11387 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11388 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11389 | { | |
| 11390 | /* Don't make stubs to out-of-line register save/restore | |
| 11391 | functions. Instead, emit copies of the functions. */ | |
| 11392 | stub_entry->group->needs_save_res = 1; | |
| 11393 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11394 | return TRUE; | |
| 11395 | } | |
| 11396 | ||
| 794e51c0 AM |
11397 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11398 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11399 | { |
| e054468f AM |
11400 | asection *plt; |
| 11401 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11402 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11403 | abort (); |
| 33e44f2e | 11404 | plt = htab->elf.splt; |
| 25f23106 AM |
11405 | if (!htab->elf.dynamic_sections_created |
| 11406 | || stub_entry->h == NULL | |
| 11407 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11408 | plt = htab->elf.iplt; |
| e054468f AM |
11409 | off += (plt->output_offset |
| 11410 | + plt->output_section->vma | |
| 11411 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11412 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11413 | |
| 794e51c0 | 11414 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11415 | if (stub_entry->h != NULL |
| 11416 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11417 | || stub_entry->h == htab->tls_get_addr) | |
| 11418 | && htab->params->tls_get_addr_opt | |
| 11419 | && (ALWAYS_EMIT_R2SAVE | |
| 11420 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11421 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11422 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11423 | ||
| e7d1c40c | 11424 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11425 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11426 | if (info->emitrelocations) |
| 11427 | { | |
| 6f20ed8a | 11428 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11429 | += ((PPC_HA (off) != 0) |
| 11430 | + (htab->opd_abi | |
| e7d1c40c | 11431 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11432 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11433 | : 1)); | |
| 6f20ed8a | 11434 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11435 | } |
| 721956f4 AM |
11436 | } |
| 11437 | else | |
| 11438 | { | |
| ad8e1ba5 AM |
11439 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11440 | variants. */ | |
| ac2df442 | 11441 | bfd_vma r2off = 0; |
| 6911b7dc | 11442 | bfd_vma local_off = 0; |
| ac2df442 | 11443 | |
| 721956f4 AM |
11444 | off = (stub_entry->target_value |
| 11445 | + stub_entry->target_section->output_offset | |
| 11446 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11447 | off -= (stub_entry->group->stub_sec->size |
| 11448 | + stub_entry->group->stub_sec->output_offset | |
| 11449 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11450 | |
| ad8e1ba5 AM |
11451 | /* Reset the stub type from the plt variant in case we now |
| 11452 | can reach with a shorter stub. */ | |
| 11453 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11454 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11455 | ||
| 11456 | size = 4; | |
| 11457 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11458 | { | |
| 25f53a85 | 11459 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11460 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11461 | { |
| 11462 | htab->stub_error = TRUE; | |
| 11463 | return FALSE; | |
| 11464 | } | |
| a7c49797 | 11465 | size = 8; |
| ac2df442 | 11466 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11467 | size += 4; |
| 11468 | if (PPC_LO (r2off) != 0) | |
| 11469 | size += 4; | |
| ac2df442 | 11470 | off -= size - 4; |
| ad8e1ba5 AM |
11471 | } |
| 11472 | ||
| 6911b7dc AM |
11473 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11474 | ||
| b9e5796b AM |
11475 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11476 | Do the same for -R objects without function descriptors. */ | |
| 11477 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11478 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11479 | && r2off == 0 |
| 11480 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11481 | { |
| 11482 | struct ppc_branch_hash_entry *br_entry; | |
| 11483 | ||
| 11484 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11485 | stub_entry->root.string + 9, | |
| b34976b6 | 11486 | TRUE, FALSE); |
| 721956f4 AM |
11487 | if (br_entry == NULL) |
| 11488 | { | |
| 8de848d8 | 11489 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11490 | stub_entry->root.string); |
| b34976b6 AM |
11491 | htab->stub_error = TRUE; |
| 11492 | return FALSE; | |
| 721956f4 AM |
11493 | } |
| 11494 | ||
| 11495 | if (br_entry->iter != htab->stub_iteration) | |
| 11496 | { | |
| 11497 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11498 | br_entry->offset = htab->brlt->size; |
| 11499 | htab->brlt->size += 8; | |
| 63bc6f6c | 11500 | |
| ee75fd95 | 11501 | if (htab->relbrlt != NULL) |
| eea6121a | 11502 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11503 | else if (info->emitrelocations) |
| 11504 | { | |
| 11505 | htab->brlt->reloc_count += 1; | |
| 11506 | htab->brlt->flags |= SEC_RELOC; | |
| 11507 | } | |
| 721956f4 | 11508 | } |
| ad8e1ba5 AM |
11509 | |
| 11510 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11511 | off = (br_entry->offset |
| 11512 | + htab->brlt->output_offset | |
| 11513 | + htab->brlt->output_section->vma | |
| 11514 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11515 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11516 | |
| 176a0d42 AM |
11517 | if (info->emitrelocations) |
| 11518 | { | |
| 6f20ed8a AM |
11519 | stub_entry->group->stub_sec->reloc_count |
| 11520 | += 1 + (PPC_HA (off) != 0); | |
| 11521 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11522 | } |
| 11523 | ||
| 00f412ee | 11524 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11525 | { |
| 11526 | size = 12; | |
| 176a0d42 | 11527 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11528 | size = 16; |
| 11529 | } | |
| 11530 | else | |
| 11531 | { | |
| 00f412ee | 11532 | size = 16; |
| 176a0d42 | 11533 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11534 | size += 4; |
| 11535 | ||
| 11536 | if (PPC_HA (r2off) != 0) | |
| 11537 | size += 4; | |
| 00f412ee AM |
11538 | if (PPC_LO (r2off) != 0) |
| 11539 | size += 4; | |
| ac2df442 | 11540 | } |
| 721956f4 | 11541 | } |
| 84f5d08e AM |
11542 | else if (info->emitrelocations) |
| 11543 | { | |
| 6f20ed8a AM |
11544 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11545 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11546 | } |
| 721956f4 AM |
11547 | } |
| 11548 | ||
| 6f20ed8a | 11549 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11550 | return TRUE; |
| 721956f4 AM |
11551 | } |
| 11552 | ||
| 11553 | /* Set up various things so that we can make a list of input sections | |
| 11554 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11555 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11556 | |
| 11557 | int | |
| e7d1c40c | 11558 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11559 | { |
| 6f20ed8a | 11560 | unsigned int id; |
| 721956f4 AM |
11561 | bfd_size_type amt; |
| 11562 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11563 | ||
| 4dfe6ac6 NC |
11564 | if (htab == NULL) |
| 11565 | return -1; | |
| 4c52953f | 11566 | |
| 6f20ed8a AM |
11567 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11568 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11569 | htab->sec_info = bfd_zmalloc (amt); | |
| 11570 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11571 | return -1; |
| 11572 | ||
| 3d6f9012 AM |
11573 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11574 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11575 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11576 | |
| 721956f4 AM |
11577 | return 1; |
| 11578 | } | |
| 11579 | ||
| 927be08e AM |
11580 | /* Set up for first pass at multitoc partitioning. */ |
| 11581 | ||
| 11582 | void | |
| 11583 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11584 | { | |
| 11585 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11586 | ||
| 1c865ab2 | 11587 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11588 | htab->toc_bfd = NULL; |
| 11589 | htab->toc_first_sec = NULL; | |
| 11590 | } | |
| 11591 | ||
| e717da7e AM |
11592 | /* The linker repeatedly calls this function for each TOC input section |
| 11593 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11594 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11595 | |
| 927be08e | 11596 | bfd_boolean |
| 4ce794b7 | 11597 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11598 | { |
| 11599 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11600 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11601 | |
| 4dfe6ac6 NC |
11602 | if (htab == NULL) |
| 11603 | return FALSE; | |
| 11604 | ||
| 927be08e | 11605 | if (!htab->second_toc_pass) |
| 4c52953f | 11606 | { |
| 927be08e | 11607 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11608 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11609 | ||
| 11610 | if (new_bfd) | |
| bf102f86 AM |
11611 | { |
| 11612 | htab->toc_bfd = isec->owner; | |
| 11613 | htab->toc_first_sec = isec; | |
| 11614 | } | |
| 927be08e | 11615 | |
| bf102f86 AM |
11616 | addr = isec->output_offset + isec->output_section->vma; |
| 11617 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11618 | limit = 0x80008000; |
| 11619 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11620 | limit = 0x10000; | |
| 11621 | if (off + isec->size > limit) | |
| bf102f86 AM |
11622 | { |
| 11623 | addr = (htab->toc_first_sec->output_offset | |
| 11624 | + htab->toc_first_sec->output_section->vma); | |
| 11625 | htab->toc_curr = addr; | |
| a27e685f | 11626 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11627 | } |
| 99877b66 | 11628 | |
| 927be08e AM |
11629 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11630 | for the input section to be the offset relative to the | |
| 11631 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11632 | offset allows us to move the toc as a whole without | |
| 11633 | recalculating input elf_gp. */ | |
| 11634 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11635 | off += TOC_BASE_OFF; | |
| 11636 | ||
| 11637 | /* Die if someone uses a linker script that doesn't keep input | |
| 11638 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11639 | if (new_bfd |
| 11640 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11641 | && elf_gp (isec->owner) != off) |
| 11642 | return FALSE; | |
| 11643 | ||
| 11644 | elf_gp (isec->owner) = off; | |
| 11645 | return TRUE; | |
| 4c52953f | 11646 | } |
| 927be08e AM |
11647 | |
| 11648 | /* During the second pass toc_first_sec points to the start of | |
| 11649 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11650 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11651 | if (htab->toc_bfd == isec->owner) | |
| 11652 | return TRUE; | |
| 11653 | htab->toc_bfd = isec->owner; | |
| 11654 | ||
| 11655 | if (htab->toc_first_sec == NULL | |
| 11656 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11657 | { | |
| 11658 | htab->toc_curr = elf_gp (isec->owner); | |
| 11659 | htab->toc_first_sec = isec; | |
| 11660 | } | |
| 11661 | addr = (htab->toc_first_sec->output_offset | |
| 11662 | + htab->toc_first_sec->output_section->vma); | |
| 11663 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11664 | elf_gp (isec->owner) = off; | |
| 11665 | ||
| 11666 | return TRUE; | |
| ad8e1ba5 AM |
11667 | } |
| 11668 | ||
| 927be08e AM |
11669 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11670 | symbol H. */ | |
| 11671 | ||
| 11672 | static bfd_boolean | |
| 11673 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11674 | { | |
| 11675 | if (h->root.type == bfd_link_hash_indirect) | |
| 11676 | return TRUE; | |
| 11677 | ||
| 927be08e AM |
11678 | merge_got_entries (&h->got.glist); |
| 11679 | ||
| 11680 | return TRUE; | |
| 11681 | } | |
| 11682 | ||
| 11683 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11684 | symbol H. */ | |
| 11685 | ||
| 11686 | static bfd_boolean | |
| 11687 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11688 | { | |
| 11689 | struct got_entry *gent; | |
| 11690 | ||
| 11691 | if (h->root.type == bfd_link_hash_indirect) | |
| 11692 | return TRUE; | |
| 11693 | ||
| 927be08e AM |
11694 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11695 | if (!gent->is_indirect) | |
| 11696 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11697 | return TRUE; | |
| 11698 | } | |
| 11699 | ||
| 11700 | /* Called on the first multitoc pass after the last call to | |
| 11701 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11702 | entries. */ | |
| 11703 | ||
| 11704 | bfd_boolean | |
| 11705 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11706 | { |
| 11707 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11708 | struct bfd *ibfd, *ibfd2; |
| 11709 | bfd_boolean done_something; | |
| 11710 | ||
| 11711 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11712 | |
| 7865406b AM |
11713 | if (!htab->do_multi_toc) |
| 11714 | return FALSE; | |
| 11715 | ||
| d0fae19d | 11716 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11717 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11718 | ||
| 11719 | /* And tlsld_got. */ | |
| c72f2fb2 | 11720 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11721 | { |
| 11722 | struct got_entry *ent, *ent2; | |
| 11723 | ||
| 11724 | if (!is_ppc64_elf (ibfd)) | |
| 11725 | continue; | |
| 11726 | ||
| 11727 | ent = ppc64_tlsld_got (ibfd); | |
| 11728 | if (!ent->is_indirect | |
| 11729 | && ent->got.offset != (bfd_vma) -1) | |
| 11730 | { | |
| c72f2fb2 | 11731 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11732 | { |
| 11733 | if (!is_ppc64_elf (ibfd2)) | |
| 11734 | continue; | |
| 11735 | ||
| 11736 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11737 | if (!ent2->is_indirect | |
| 11738 | && ent2->got.offset != (bfd_vma) -1 | |
| 11739 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11740 | { | |
| 11741 | ent2->is_indirect = TRUE; | |
| 11742 | ent2->got.ent = ent; | |
| 11743 | } | |
| 11744 | } | |
| 11745 | } | |
| 11746 | } | |
| 11747 | ||
| 11748 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11749 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11750 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11751 | htab->got_reli_size = 0; |
| 11752 | ||
| c72f2fb2 | 11753 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11754 | { |
| 11755 | asection *got, *relgot; | |
| 11756 | ||
| 11757 | if (!is_ppc64_elf (ibfd)) | |
| 11758 | continue; | |
| 11759 | ||
| 11760 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11761 | if (got != NULL) | |
| 11762 | { | |
| 11763 | got->rawsize = got->size; | |
| 11764 | got->size = 0; | |
| 11765 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11766 | relgot->rawsize = relgot->size; | |
| 11767 | relgot->size = 0; | |
| 11768 | } | |
| 11769 | } | |
| 11770 | ||
| 11771 | /* Now reallocate the got, local syms first. We don't need to | |
| 11772 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11773 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11774 | { |
| 11775 | struct got_entry **lgot_ents; | |
| 11776 | struct got_entry **end_lgot_ents; | |
| 11777 | struct plt_entry **local_plt; | |
| 11778 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11779 | unsigned char *lgot_masks; |
| 927be08e AM |
11780 | bfd_size_type locsymcount; |
| 11781 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11782 | asection *s; |
| 927be08e AM |
11783 | |
| 11784 | if (!is_ppc64_elf (ibfd)) | |
| 11785 | continue; | |
| 11786 | ||
| 11787 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11788 | if (!lgot_ents) | |
| 11789 | continue; | |
| 11790 | ||
| 11791 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11792 | locsymcount = symtab_hdr->sh_info; | |
| 11793 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11794 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11795 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11796 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11797 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11798 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11799 | { | |
| 11800 | struct got_entry *ent; | |
| 11801 | ||
| 11802 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11803 | { |
| 19e08130 AM |
11804 | unsigned int ent_size = 8; |
| 11805 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11806 | ||
| d0fae19d AM |
11807 | ent->got.offset = s->size; |
| 11808 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11809 | { |
| 19e08130 AM |
11810 | ent_size *= 2; |
| 11811 | rel_size *= 2; | |
| 11812 | } | |
| 11813 | s->size += ent_size; | |
| 11814 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11815 | { | |
| 33e44f2e | 11816 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11817 | htab->got_reli_size += rel_size; |
| 11818 | } | |
| 0e1862bb | 11819 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11820 | { |
| 11821 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11822 | srel->size += rel_size; | |
| d0fae19d AM |
11823 | } |
| 11824 | } | |
| 927be08e AM |
11825 | } |
| 11826 | } | |
| 11827 | ||
| 11828 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11829 | ||
| c72f2fb2 | 11830 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11831 | { |
| 11832 | struct got_entry *ent; | |
| 11833 | ||
| 11834 | if (!is_ppc64_elf (ibfd)) | |
| 11835 | continue; | |
| 11836 | ||
| 11837 | ent = ppc64_tlsld_got (ibfd); | |
| 11838 | if (!ent->is_indirect | |
| 11839 | && ent->got.offset != (bfd_vma) -1) | |
| 11840 | { | |
| 11841 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11842 | ent->got.offset = s->size; | |
| 11843 | s->size += 16; | |
| 0e1862bb | 11844 | if (bfd_link_pic (info)) |
| 927be08e AM |
11845 | { |
| 11846 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11847 | srel->size += sizeof (Elf64_External_Rela); | |
| 11848 | } | |
| 11849 | } | |
| 11850 | } | |
| 11851 | ||
| 33e44f2e | 11852 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11853 | if (!done_something) |
| c72f2fb2 | 11854 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11855 | { |
| 11856 | asection *got; | |
| 11857 | ||
| 11858 | if (!is_ppc64_elf (ibfd)) | |
| 11859 | continue; | |
| 11860 | ||
| 11861 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11862 | if (got != NULL) | |
| 11863 | { | |
| 11864 | done_something = got->rawsize != got->size; | |
| 11865 | if (done_something) | |
| 11866 | break; | |
| 11867 | } | |
| 11868 | } | |
| 11869 | ||
| 11870 | if (done_something) | |
| e7d1c40c | 11871 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11872 | |
| 11873 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11874 | on input sections. */ | |
| 11875 | htab->toc_bfd = NULL; | |
| 11876 | htab->toc_first_sec = NULL; | |
| 11877 | htab->second_toc_pass = TRUE; | |
| 11878 | return done_something; | |
| 11879 | } | |
| 11880 | ||
| 11881 | /* Called after second pass of multitoc partitioning. */ | |
| 11882 | ||
| 11883 | void | |
| 11884 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11885 | { | |
| 11886 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11887 | ||
| 11888 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11889 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11890 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11891 | } |
| 11892 | ||
| 9b5ecbd0 AM |
11893 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11894 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11895 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11896 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11897 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11898 | for a stub was detected. If called from the top level, a return of | |
| 11899 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11900 | |
| 11901 | static int | |
| 4ce794b7 | 11902 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11903 | { |
| 9b5ecbd0 | 11904 | int ret; |
| 70cc837d AM |
11905 | |
| 11906 | /* Mark this section as checked. */ | |
| 11907 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11908 | |
| 772119ce AM |
11909 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11910 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11911 | return 0; | |
| 11912 | ||
| eea6121a | 11913 | if (isec->size == 0) |
| 082c50f8 AM |
11914 | return 0; |
| 11915 | ||
| 4c52953f AM |
11916 | if (isec->output_section == NULL) |
| 11917 | return 0; | |
| 11918 | ||
| 4c52953f | 11919 | ret = 0; |
| 70cc837d | 11920 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11921 | { |
| 70cc837d AM |
11922 | Elf_Internal_Rela *relstart, *rel; |
| 11923 | Elf_Internal_Sym *local_syms; | |
| 11924 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11925 | |
| 70cc837d AM |
11926 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11927 | info->keep_memory); | |
| 11928 | if (relstart == NULL) | |
| 11929 | return -1; | |
| 90aecf7a | 11930 | |
| 70cc837d AM |
11931 | /* Look for branches to outside of this section. */ |
| 11932 | local_syms = NULL; | |
| 11933 | htab = ppc_hash_table (info); | |
| 11934 | if (htab == NULL) | |
| 11935 | return -1; | |
| 4c52953f | 11936 | |
| 70cc837d | 11937 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11938 | { |
| 70cc837d AM |
11939 | enum elf_ppc64_reloc_type r_type; |
| 11940 | unsigned long r_symndx; | |
| 11941 | struct elf_link_hash_entry *h; | |
| 11942 | struct ppc_link_hash_entry *eh; | |
| 11943 | Elf_Internal_Sym *sym; | |
| 11944 | asection *sym_sec; | |
| 11945 | struct _opd_sec_data *opd; | |
| 11946 | bfd_vma sym_value; | |
| 11947 | bfd_vma dest; | |
| 11948 | ||
| 11949 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11950 | if (r_type != R_PPC64_REL24 | |
| 11951 | && r_type != R_PPC64_REL14 | |
| 11952 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11953 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11954 | continue; | |
| 4c52953f | 11955 | |
| 70cc837d AM |
11956 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11957 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11958 | isec->owner)) | |
| 4c52953f | 11959 | { |
| 70cc837d AM |
11960 | ret = -1; |
| 11961 | break; | |
| 11962 | } | |
| 4c52953f | 11963 | |
| 70cc837d AM |
11964 | /* Calls to dynamic lib functions go through a plt call stub |
| 11965 | that uses r2. */ | |
| 11966 | eh = (struct ppc_link_hash_entry *) h; | |
| 11967 | if (eh != NULL | |
| 11968 | && (eh->elf.plt.plist != NULL | |
| 11969 | || (eh->oh != NULL | |
| 11970 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11971 | { | |
| 11972 | ret = 1; | |
| 11973 | break; | |
| 4c52953f AM |
11974 | } |
| 11975 | ||
| 70cc837d AM |
11976 | if (sym_sec == NULL) |
| 11977 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11978 | continue; |
| 4c52953f | 11979 | |
| 70cc837d AM |
11980 | /* Assume branches to other sections not included in the |
| 11981 | link need stubs too, to cover -R and absolute syms. */ | |
| 11982 | if (sym_sec->output_section == NULL) | |
| 11983 | { | |
| 11984 | ret = 1; | |
| 11985 | break; | |
| 11986 | } | |
| 4c52953f | 11987 | |
| 70cc837d AM |
11988 | if (h == NULL) |
| 11989 | sym_value = sym->st_value; | |
| 11990 | else | |
| 11991 | { | |
| 11992 | if (h->root.type != bfd_link_hash_defined | |
| 11993 | && h->root.type != bfd_link_hash_defweak) | |
| 11994 | abort (); | |
| 11995 | sym_value = h->root.u.def.value; | |
| 11996 | } | |
| 11997 | sym_value += rel->r_addend; | |
| 4c52953f | 11998 | |
| 70cc837d AM |
11999 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 12000 | opd = get_opd_info (sym_sec); | |
| 12001 | if (opd != NULL) | |
| 12002 | { | |
| 12003 | if (h == NULL && opd->adjust != NULL) | |
| 12004 | { | |
| 12005 | long adjust; | |
| 4c52953f | 12006 | |
| 92a9c616 | 12007 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
12008 | if (adjust == -1) |
| 12009 | /* Assume deleted functions won't ever be called. */ | |
| 12010 | continue; | |
| 12011 | sym_value += adjust; | |
| 12012 | } | |
| 4c52953f | 12013 | |
| aef36ac1 AM |
12014 | dest = opd_entry_value (sym_sec, sym_value, |
| 12015 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
12016 | if (dest == (bfd_vma) -1) |
| 12017 | continue; | |
| 12018 | } | |
| 12019 | else | |
| 12020 | dest = (sym_value | |
| 12021 | + sym_sec->output_offset | |
| 12022 | + sym_sec->output_section->vma); | |
| 4c52953f | 12023 | |
| 70cc837d AM |
12024 | /* Ignore branch to self. */ |
| 12025 | if (sym_sec == isec) | |
| 12026 | continue; | |
| 4c52953f | 12027 | |
| 70cc837d AM |
12028 | /* If the called function uses the toc, we need a stub. */ |
| 12029 | if (sym_sec->has_toc_reloc | |
| 12030 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 12031 | { |
| 70cc837d | 12032 | ret = 1; |
| 4c52953f AM |
12033 | break; |
| 12034 | } | |
| 70cc837d AM |
12035 | |
| 12036 | /* Assume any branch that needs a long branch stub might in fact | |
| 12037 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 12038 | else if (dest - (isec->output_offset | |
| 12039 | + isec->output_section->vma | |
| 6911b7dc AM |
12040 | + rel->r_offset) + (1 << 25) |
| 12041 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 12042 | ? h->other | |
| 12043 | : sym->st_other)) | |
| 4c52953f | 12044 | { |
| 70cc837d AM |
12045 | ret = 1; |
| 12046 | break; | |
| 12047 | } | |
| 12048 | ||
| 12049 | /* If calling back to a section in the process of being | |
| 12050 | tested, we can't say for sure that no toc adjusting stubs | |
| 12051 | are needed, so don't return zero. */ | |
| 12052 | else if (sym_sec->call_check_in_progress) | |
| 12053 | ret = 2; | |
| 12054 | ||
| 12055 | /* Branches to another section that itself doesn't have any TOC | |
| 12056 | references are OK. Recursively call ourselves to check. */ | |
| 12057 | else if (!sym_sec->call_check_done) | |
| 12058 | { | |
| 12059 | int recur; | |
| 12060 | ||
| 12061 | /* Mark current section as indeterminate, so that other | |
| 12062 | sections that call back to current won't be marked as | |
| 12063 | known. */ | |
| 12064 | isec->call_check_in_progress = 1; | |
| 12065 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 12066 | isec->call_check_in_progress = 0; | |
| 12067 | ||
| 4c52953f AM |
12068 | if (recur != 0) |
| 12069 | { | |
| 70cc837d AM |
12070 | ret = recur; |
| 12071 | if (recur != 2) | |
| 12072 | break; | |
| 4c52953f AM |
12073 | } |
| 12074 | } | |
| 4c52953f | 12075 | } |
| 70cc837d AM |
12076 | |
| 12077 | if (local_syms != NULL | |
| 12078 | && (elf_symtab_hdr (isec->owner).contents | |
| 12079 | != (unsigned char *) local_syms)) | |
| 12080 | free (local_syms); | |
| 12081 | if (elf_section_data (isec)->relocs != relstart) | |
| 12082 | free (relstart); | |
| 9b5ecbd0 AM |
12083 | } |
| 12084 | ||
| 70cc837d AM |
12085 | if ((ret & 1) == 0 |
| 12086 | && isec->map_head.s != NULL | |
| 12087 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 12088 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 12089 | { | |
| 12090 | if (isec->map_head.s->has_toc_reloc | |
| 12091 | || isec->map_head.s->makes_toc_func_call) | |
| 12092 | ret = 1; | |
| 12093 | else if (!isec->map_head.s->call_check_done) | |
| 12094 | { | |
| 12095 | int recur; | |
| 12096 | isec->call_check_in_progress = 1; | |
| 12097 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 12098 | isec->call_check_in_progress = 0; | |
| 12099 | if (recur != 0) | |
| 12100 | ret = recur; | |
| 12101 | } | |
| 12102 | } | |
| 12103 | ||
| 12104 | if (ret == 1) | |
| 12105 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 12106 | |
| 9b5ecbd0 AM |
12107 | return ret; |
| 12108 | } | |
| 12109 | ||
| 721956f4 AM |
12110 | /* The linker repeatedly calls this function for each input section, |
| 12111 | in the order that input sections are linked into output sections. | |
| 12112 | Build lists of input sections to determine groupings between which | |
| 12113 | we may insert linker stubs. */ | |
| 12114 | ||
| 9b5ecbd0 | 12115 | bfd_boolean |
| 4ce794b7 | 12116 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12117 | { |
| 12118 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12119 | ||
| 4dfe6ac6 NC |
12120 | if (htab == NULL) |
| 12121 | return FALSE; | |
| 12122 | ||
| 734b6cf9 | 12123 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12124 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12125 | { |
| 3d6f9012 AM |
12126 | /* This happens to make the list in reverse order, |
| 12127 | which is what we want. */ | |
| 6f20ed8a AM |
12128 | htab->sec_info[isec->id].u.list |
| 12129 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12130 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12131 | } |
| ad8e1ba5 | 12132 | |
| 4c52953f | 12133 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12134 | { |
| 8b974ba3 AM |
12135 | /* Analyse sections that aren't already flagged as needing a |
| 12136 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12137 | .fixup contains branches, but only back to the function that | |
| 12138 | hit an exception. */ | |
| 12139 | if (!(isec->has_toc_reloc | |
| 12140 | || (isec->flags & SEC_CODE) == 0 | |
| 12141 | || strcmp (isec->name, ".fixup") == 0 | |
| 12142 | || isec->call_check_done)) | |
| 12143 | { | |
| 12144 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12145 | return FALSE; |
| 8b974ba3 AM |
12146 | } |
| 12147 | /* Make all sections use the TOC assigned for this object file. | |
| 12148 | This will be wrong for pasted sections; We fix that in | |
| 12149 | check_pasted_section(). */ | |
| 12150 | if (elf_gp (isec->owner) != 0) | |
| 12151 | htab->toc_curr = elf_gp (isec->owner); | |
| 12152 | } | |
| 12153 | ||
| 6f20ed8a | 12154 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12155 | return TRUE; |
| 721956f4 AM |
12156 | } |
| 12157 | ||
| 70cc837d AM |
12158 | /* Check that all .init and .fini sections use the same toc, if they |
| 12159 | have toc relocs. */ | |
| 12160 | ||
| 12161 | static bfd_boolean | |
| 12162 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12163 | { | |
| 12164 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12165 | ||
| 12166 | if (o != NULL) | |
| 12167 | { | |
| 12168 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12169 | bfd_vma toc_off = 0; | |
| 12170 | asection *i; | |
| 12171 | ||
| 12172 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12173 | if (i->has_toc_reloc) | |
| 12174 | { | |
| 12175 | if (toc_off == 0) | |
| 6f20ed8a AM |
12176 | toc_off = htab->sec_info[i->id].toc_off; |
| 12177 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12178 | return FALSE; |
| 12179 | } | |
| 6683a28d AM |
12180 | |
| 12181 | if (toc_off == 0) | |
| 12182 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12183 | if (i->makes_toc_func_call) | |
| 12184 | { | |
| 6f20ed8a | 12185 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12186 | break; |
| 12187 | } | |
| 12188 | ||
| 70cc837d AM |
12189 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12190 | if (toc_off != 0) | |
| 12191 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12192 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12193 | } |
| 12194 | return TRUE; | |
| 12195 | } | |
| 12196 | ||
| 12197 | bfd_boolean | |
| 12198 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12199 | { | |
| 12200 | return (check_pasted_section (info, ".init") | |
| 12201 | & check_pasted_section (info, ".fini")); | |
| 12202 | } | |
| 12203 | ||
| 721956f4 AM |
12204 | /* See whether we can group stub sections together. Grouping stub |
| 12205 | sections may result in fewer stubs. More importantly, we need to | |
| 12206 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12207 | .fini output sections respectively, because glibc splits the | |
| 12208 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12209 | the middle of a function is not a good idea. */ | |
| 12210 | ||
| 6f20ed8a AM |
12211 | static bfd_boolean |
| 12212 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12213 | bfd_size_type stub_group_size, |
| 12214 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12215 | { |
| 6f20ed8a AM |
12216 | struct ppc_link_hash_table *htab; |
| 12217 | asection *osec; | |
| 7c8fe5c4 AM |
12218 | bfd_boolean suppress_size_errors; |
| 12219 | ||
| 6f20ed8a AM |
12220 | htab = ppc_hash_table (info); |
| 12221 | if (htab == NULL) | |
| 12222 | return FALSE; | |
| 12223 | ||
| 7c8fe5c4 | 12224 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12225 | if (stub_group_size == 1) |
| 12226 | { | |
| 12227 | /* Default values. */ | |
| 12228 | if (stubs_always_before_branch) | |
| 09f92717 | 12229 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12230 | else |
| 09f92717 | 12231 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12232 | suppress_size_errors = TRUE; |
| 12233 | } | |
| 12234 | ||
| 6f20ed8a | 12235 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12236 | { |
| 6f20ed8a AM |
12237 | asection *tail; |
| 12238 | ||
| 12239 | if (osec->id >= htab->sec_info_arr_size) | |
| 12240 | continue; | |
| 12241 | ||
| 12242 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12243 | while (tail != NULL) |
| 721956f4 | 12244 | { |
| 734b6cf9 AM |
12245 | asection *curr; |
| 12246 | asection *prev; | |
| 12247 | bfd_size_type total; | |
| 12248 | bfd_boolean big_sec; | |
| 12249 | bfd_vma curr_toc; | |
| 6f20ed8a | 12250 | struct map_stub *group; |
| 09f92717 | 12251 | bfd_size_type group_size; |
| 734b6cf9 AM |
12252 | |
| 12253 | curr = tail; | |
| eea6121a | 12254 | total = tail->size; |
| 09f92717 AM |
12255 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12256 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12257 | ? stub_group_size >> 10 : stub_group_size); | |
| 12258 | ||
| 12259 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12260 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12261 | /* xgettext:c-format */ |
| 4eca0228 AM |
12262 | _bfd_error_handler (_("%B section %A exceeds stub group size"), |
| 12263 | tail->owner, tail); | |
| 6f20ed8a | 12264 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12265 | |
| 6f20ed8a | 12266 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12267 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12268 | < (ppc64_elf_section_data (prev) != NULL |
| 12269 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12270 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12271 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12272 | curr = prev; |
| 12273 | ||
| 12274 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12275 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12276 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12277 | group_size, in which case we may be toast.) We should |
| 12278 | really be keeping track of the total size of stubs added | |
| 12279 | here, as stubs contribute to the final output section | |
| 12280 | size. That's a little tricky, and this way will only | |
| 12281 | break if stubs added make the total size more than 2^25, | |
| 12282 | ie. for the default stub_group_size, if stubs total more | |
| 12283 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12284 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12285 | if (group == NULL) | |
| 12286 | return FALSE; | |
| 12287 | group->link_sec = curr; | |
| 12288 | group->stub_sec = NULL; | |
| a4b6fadd | 12289 | group->needs_save_res = 0; |
| d4aaa2a0 | 12290 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12291 | group->next = htab->group; |
| 12292 | htab->group = group; | |
| 734b6cf9 | 12293 | do |
| 721956f4 | 12294 | { |
| 6f20ed8a | 12295 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12296 | /* Set up this stub group. */ |
| 6f20ed8a | 12297 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12298 | } |
| 734b6cf9 AM |
12299 | while (tail != curr && (tail = prev) != NULL); |
| 12300 | ||
| 09f92717 | 12301 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12302 | bytes before the stub section can be handled by it too. |
| 12303 | Don't do this if we have a really large section after the | |
| 12304 | stubs, as adding more stubs increases the chance that | |
| 12305 | branches may not reach into the stub section. */ | |
| 12306 | if (!stubs_always_before_branch && !big_sec) | |
| 12307 | { | |
| 12308 | total = 0; | |
| 12309 | while (prev != NULL | |
| 12310 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12311 | < (ppc64_elf_section_data (prev) != NULL |
| 12312 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12313 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12314 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12315 | { |
| 12316 | tail = prev; | |
| 6f20ed8a AM |
12317 | prev = htab->sec_info[tail->id].u.list; |
| 12318 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12319 | } |
| 12320 | } | |
| 12321 | tail = prev; | |
| 721956f4 AM |
12322 | } |
| 12323 | } | |
| 6f20ed8a | 12324 | return TRUE; |
| 721956f4 AM |
12325 | } |
| 12326 | ||
| 58d180e8 AM |
12327 | static const unsigned char glink_eh_frame_cie[] = |
| 12328 | { | |
| 12329 | 0, 0, 0, 16, /* length. */ | |
| 12330 | 0, 0, 0, 0, /* id. */ | |
| 12331 | 1, /* CIE version. */ | |
| 12332 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12333 | 4, /* Code alignment. */ | |
| 12334 | 0x78, /* Data alignment. */ | |
| 12335 | 65, /* RA reg. */ | |
| 12336 | 1, /* Augmentation size. */ | |
| 12337 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12338 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12339 | }; |
| 12340 | ||
| d4aaa2a0 AM |
12341 | static size_t |
| 12342 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12343 | { | |
| 12344 | size_t this_size = 17; | |
| 12345 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12346 | { | |
| 12347 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12348 | if (to_bctrl < 64) | |
| 12349 | this_size += 1; | |
| 12350 | else if (to_bctrl < 256) | |
| 12351 | this_size += 2; | |
| 12352 | else if (to_bctrl < 65536) | |
| 12353 | this_size += 3; | |
| 12354 | else | |
| 12355 | this_size += 5; | |
| 12356 | this_size += 6; | |
| 12357 | } | |
| 12358 | this_size = (this_size + align - 1) & -align; | |
| 12359 | return this_size; | |
| 12360 | } | |
| 12361 | ||
| d969d15f AM |
12362 | /* Stripping output sections is normally done before dynamic section |
| 12363 | symbols have been allocated. This function is called later, and | |
| 12364 | handles cases like htab->brlt which is mapped to its own output | |
| 12365 | section. */ | |
| 12366 | ||
| 12367 | static void | |
| 12368 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12369 | { | |
| 12370 | if (isec->size == 0 | |
| 12371 | && isec->output_section->size == 0 | |
| 53d8967a | 12372 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12373 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12374 | isec->output_section) | |
| 12375 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12376 | { | |
| 12377 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12378 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12379 | info->output_bfd->section_count--; | |
| 12380 | } | |
| 12381 | } | |
| 12382 | ||
| 721956f4 AM |
12383 | /* Determine and set the size of the stub section for a final link. |
| 12384 | ||
| 12385 | The basic idea here is to examine all the relocations looking for | |
| 12386 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12387 | instruction. */ | |
| 12388 | ||
| b34976b6 | 12389 | bfd_boolean |
| e7d1c40c | 12390 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12391 | { |
| 12392 | bfd_size_type stub_group_size; | |
| b34976b6 | 12393 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12394 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12395 | ||
| 4dfe6ac6 NC |
12396 | if (htab == NULL) |
| 12397 | return FALSE; | |
| 12398 | ||
| 0e1862bb | 12399 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12400 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12401 | if (!htab->opd_abi) |
| e7d1c40c AM |
12402 | htab->params->plt_thread_safe = 0; |
| 12403 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12404 | { |
| e2458743 | 12405 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12406 | { |
| 12407 | "pthread_create", | |
| 12408 | /* libstdc++ */ | |
| 12409 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12410 | /* librt */ | |
| 12411 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12412 | "mq_notify", "create_timer", | |
| 12413 | /* libanl */ | |
| 12414 | "getaddrinfo_a", | |
| 12415 | /* libgomp */ | |
| 2300b5a1 | 12416 | "GOMP_parallel", |
| 794e51c0 | 12417 | "GOMP_parallel_start", |
| 2300b5a1 | 12418 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12419 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12420 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12421 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12422 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12423 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12424 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12425 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12426 | "GOMP_parallel_sections", |
| 68ffbac6 | 12427 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12428 | /* libgo */ |
| 12429 | "__go_go", | |
| 794e51c0 AM |
12430 | }; |
| 12431 | unsigned i; | |
| 12432 | ||
| a4b6fadd | 12433 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12434 | { |
| 12435 | struct elf_link_hash_entry *h; | |
| 12436 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12437 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12438 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12439 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12440 | break; |
| 12441 | } | |
| 12442 | } | |
| e7d1c40c AM |
12443 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12444 | if (htab->params->group_size < 0) | |
| 12445 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12446 | else |
| e7d1c40c | 12447 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12448 | |
| 6f20ed8a AM |
12449 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12450 | return FALSE; | |
| 721956f4 | 12451 | |
| c9301e31 AM |
12452 | #define STUB_SHRINK_ITER 20 |
| 12453 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12454 | exit on a stub section shrinking. This is to break out of a | |
| 12455 | pathological case where adding stubs on one iteration decreases | |
| 12456 | section gaps (perhaps due to alignment), which then requires | |
| 12457 | fewer or smaller stubs on the next iteration. */ | |
| 12458 | ||
| 721956f4 AM |
12459 | while (1) |
| 12460 | { | |
| 12461 | bfd *input_bfd; | |
| 12462 | unsigned int bfd_indx; | |
| a4b6fadd | 12463 | struct map_stub *group; |
| 721956f4 AM |
12464 | |
| 12465 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12466 | |
| 12467 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12468 | input_bfd != NULL; | |
| c72f2fb2 | 12469 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12470 | { |
| 12471 | Elf_Internal_Shdr *symtab_hdr; | |
| 12472 | asection *section; | |
| 6cdc0ccc | 12473 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12474 | |
| 0c8d6e5c | 12475 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12476 | continue; |
| 12477 | ||
| 721956f4 | 12478 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12479 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12480 | if (symtab_hdr->sh_info == 0) |
| 12481 | continue; | |
| 12482 | ||
| 721956f4 AM |
12483 | /* Walk over each section attached to the input bfd. */ |
| 12484 | for (section = input_bfd->sections; | |
| 12485 | section != NULL; | |
| 12486 | section = section->next) | |
| 12487 | { | |
| 721956f4 | 12488 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12489 | |
| 12490 | /* If there aren't any relocs, then there's nothing more | |
| 12491 | to do. */ | |
| 12492 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12493 | || (section->flags & SEC_ALLOC) == 0 |
| 12494 | || (section->flags & SEC_LOAD) == 0 | |
| 12495 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12496 | || section->reloc_count == 0) |
| 12497 | continue; | |
| 12498 | ||
| 12499 | /* If this section is a link-once section that will be | |
| 12500 | discarded, then don't create any stubs. */ | |
| 12501 | if (section->output_section == NULL | |
| 927be08e | 12502 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12503 | continue; |
| 12504 | ||
| 1e2f5b6e AM |
12505 | /* Get the relocs. */ |
| 12506 | internal_relocs | |
| 4ce794b7 | 12507 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12508 | info->keep_memory); |
| 721956f4 | 12509 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12510 | goto error_ret_free_local; |
| 721956f4 AM |
12511 | |
| 12512 | /* Now examine each relocation. */ | |
| 12513 | irela = internal_relocs; | |
| 12514 | irelaend = irela + section->reloc_count; | |
| 12515 | for (; irela < irelaend; irela++) | |
| 12516 | { | |
| 4ce794b7 AM |
12517 | enum elf_ppc64_reloc_type r_type; |
| 12518 | unsigned int r_indx; | |
| 721956f4 AM |
12519 | enum ppc_stub_type stub_type; |
| 12520 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12521 | asection *sym_sec, *code_sec; |
| e054468f | 12522 | bfd_vma sym_value, code_value; |
| 721956f4 | 12523 | bfd_vma destination; |
| 6911b7dc | 12524 | unsigned long local_off; |
| 8843416a | 12525 | bfd_boolean ok_dest; |
| 721956f4 | 12526 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12527 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12528 | struct elf_link_hash_entry *h; |
| 12529 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12530 | char *stub_name; |
| 12531 | const asection *id_sec; | |
| 74f0fb50 | 12532 | struct _opd_sec_data *opd; |
| e054468f | 12533 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12534 | |
| 12535 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12536 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12537 | ||
| 4ce794b7 | 12538 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12539 | { |
| 12540 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12541 | goto error_ret_free_internal; |
| 721956f4 AM |
12542 | } |
| 12543 | ||
| 12544 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12545 | if (r_type != R_PPC64_REL24 |
| 12546 | && r_type != R_PPC64_REL14 | |
| 12547 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12548 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12549 | continue; |
| 12550 | ||
| 12551 | /* Now determine the call target, its name, value, | |
| 12552 | section. */ | |
| 411e1bfb AM |
12553 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12554 | r_indx, input_bfd)) | |
| 12555 | goto error_ret_free_internal; | |
| 12556 | hash = (struct ppc_link_hash_entry *) h; | |
| 12557 | ||
| 8843416a | 12558 | ok_dest = FALSE; |
| 8387904d | 12559 | fdh = NULL; |
| 7fe2b9a6 | 12560 | sym_value = 0; |
| 411e1bfb | 12561 | if (hash == NULL) |
| 721956f4 | 12562 | { |
| 411e1bfb | 12563 | sym_value = sym->st_value; |
| c27b8c2a AM |
12564 | if (sym_sec != NULL |
| 12565 | && sym_sec->output_section != NULL) | |
| 12566 | ok_dest = TRUE; | |
| 721956f4 | 12567 | } |
| 7fe2b9a6 AM |
12568 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12569 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12570 | { | |
| 12571 | sym_value = hash->elf.root.u.def.value; | |
| 12572 | if (sym_sec->output_section != NULL) | |
| 12573 | ok_dest = TRUE; | |
| 12574 | } | |
| 12575 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12576 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12577 | { |
| 99877b66 | 12578 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12579 | use the func descriptor sym instead if it is |
| 12580 | defined. */ | |
| ceb1f1ef | 12581 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12582 | && hash->oh != NULL) |
| 8387904d | 12583 | { |
| 8c5b4e52 | 12584 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12585 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12586 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12587 | { | |
| 12588 | sym_sec = fdh->elf.root.u.def.section; | |
| 12589 | sym_value = fdh->elf.root.u.def.value; | |
| 12590 | if (sym_sec->output_section != NULL) | |
| 12591 | ok_dest = TRUE; | |
| 12592 | } | |
| 99877b66 AM |
12593 | else |
| 12594 | fdh = NULL; | |
| 8387904d | 12595 | } |
| 7fe2b9a6 AM |
12596 | } |
| 12597 | else | |
| 12598 | { | |
| 12599 | bfd_set_error (bfd_error_bad_value); | |
| 12600 | goto error_ret_free_internal; | |
| 721956f4 AM |
12601 | } |
| 12602 | ||
| 8843416a | 12603 | destination = 0; |
| 6911b7dc | 12604 | local_off = 0; |
| 8843416a AM |
12605 | if (ok_dest) |
| 12606 | { | |
| 12607 | sym_value += irela->r_addend; | |
| 12608 | destination = (sym_value | |
| 12609 | + sym_sec->output_offset | |
| 12610 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12611 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12612 | ? hash->elf.other | |
| 12613 | : sym->st_other); | |
| 8843416a AM |
12614 | } |
| 12615 | ||
| 8387904d | 12616 | code_sec = sym_sec; |
| e054468f | 12617 | code_value = sym_value; |
| 74f0fb50 AM |
12618 | opd = get_opd_info (sym_sec); |
| 12619 | if (opd != NULL) | |
| 8387904d AM |
12620 | { |
| 12621 | bfd_vma dest; | |
| 12622 | ||
| 74f0fb50 | 12623 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12624 | { |
| 51aecdc5 | 12625 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12626 | if (adjust == -1) |
| 12627 | continue; | |
| e054468f | 12628 | code_value += adjust; |
| 8387904d AM |
12629 | sym_value += adjust; |
| 12630 | } | |
| 12631 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12632 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12633 | if (dest != (bfd_vma) -1) |
| 12634 | { | |
| 12635 | destination = dest; | |
| 12636 | if (fdh != NULL) | |
| 12637 | { | |
| 12638 | /* Fixup old ABI sym to point at code | |
| 12639 | entry. */ | |
| 99877b66 | 12640 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12641 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12642 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12643 | } |
| 12644 | } | |
| 12645 | } | |
| 12646 | ||
| 721956f4 | 12647 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12648 | plt_ent = NULL; |
| 721956f4 | 12649 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12650 | &plt_ent, destination, |
| 12651 | local_off); | |
| ad8e1ba5 AM |
12652 | |
| 12653 | if (stub_type != ppc_stub_plt_call) | |
| 12654 | { | |
| 12655 | /* Check whether we need a TOC adjusting stub. | |
| 12656 | Since the linker pastes together pieces from | |
| 12657 | different object files when creating the | |
| 12658 | _init and _fini functions, it may be that a | |
| 12659 | call to what looks like a local sym is in | |
| 12660 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12661 | if (code_sec != NULL |
| 12662 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12663 | && (htab->sec_info[code_sec->id].toc_off |
| 12664 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12665 | && (code_sec->has_toc_reloc |
| 12666 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12667 | stub_type = ppc_stub_long_branch_r2off; |
| 12668 | } | |
| 12669 | ||
| 721956f4 AM |
12670 | if (stub_type == ppc_stub_none) |
| 12671 | continue; | |
| 12672 | ||
| 411e1bfb AM |
12673 | /* __tls_get_addr calls might be eliminated. */ |
| 12674 | if (stub_type != ppc_stub_plt_call | |
| 12675 | && hash != NULL | |
| 8387904d AM |
12676 | && (hash == htab->tls_get_addr |
| 12677 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12678 | && section->has_tls_reloc |
| 12679 | && irela != internal_relocs) | |
| 12680 | { | |
| 12681 | /* Get tls info. */ | |
| f961d9dd | 12682 | unsigned char *tls_mask; |
| 411e1bfb | 12683 | |
| 3a71aa26 | 12684 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12685 | irela - 1, input_bfd)) |
| 12686 | goto error_ret_free_internal; | |
| e7b938ca | 12687 | if (*tls_mask != 0) |
| 411e1bfb AM |
12688 | continue; |
| 12689 | } | |
| 12690 | ||
| f378ab09 | 12691 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12692 | { |
| 6e1816be AM |
12693 | if (!htab->opd_abi |
| 12694 | && htab->params->plt_localentry0 != 0 | |
| 12695 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12696 | htab->has_plt_localentry0 = 1; | |
| 12697 | else if (irela + 1 < irelaend | |
| 12698 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12699 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12700 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12701 | { |
| 12702 | if (!tocsave_find (htab, INSERT, | |
| 12703 | &local_syms, irela + 1, input_bfd)) | |
| 12704 | goto error_ret_free_internal; | |
| 12705 | } | |
| f378ab09 AM |
12706 | else |
| 12707 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12708 | } |
| 3b421ab3 | 12709 | |
| 721956f4 | 12710 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12711 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12712 | |
| 12713 | /* Get the name of this stub. */ | |
| 12714 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12715 | if (!stub_name) | |
| 12716 | goto error_ret_free_internal; | |
| 12717 | ||
| 12718 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12719 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12720 | if (stub_entry != NULL) |
| 12721 | { | |
| 12722 | /* The proper stub has already been created. */ | |
| 12723 | free (stub_name); | |
| 794e51c0 AM |
12724 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12725 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12726 | continue; |
| 12727 | } | |
| 12728 | ||
| 25f53a85 | 12729 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12730 | if (stub_entry == NULL) |
| 12731 | { | |
| 12732 | free (stub_name); | |
| 6cdc0ccc AM |
12733 | error_ret_free_internal: |
| 12734 | if (elf_section_data (section)->relocs == NULL) | |
| 12735 | free (internal_relocs); | |
| 12736 | error_ret_free_local: | |
| 12737 | if (local_syms != NULL | |
| 12738 | && (symtab_hdr->contents | |
| 12739 | != (unsigned char *) local_syms)) | |
| 12740 | free (local_syms); | |
| b34976b6 | 12741 | return FALSE; |
| 721956f4 AM |
12742 | } |
| 12743 | ||
| ad8e1ba5 | 12744 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12745 | if (stub_type != ppc_stub_plt_call |
| 12746 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12747 | { |
| 12748 | stub_entry->target_value = code_value; | |
| 12749 | stub_entry->target_section = code_sec; | |
| 12750 | } | |
| 12751 | else | |
| 12752 | { | |
| 12753 | stub_entry->target_value = sym_value; | |
| 12754 | stub_entry->target_section = sym_sec; | |
| 12755 | } | |
| 721956f4 | 12756 | stub_entry->h = hash; |
| e054468f | 12757 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12758 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12759 | |
| 12760 | if (stub_entry->h != NULL) | |
| 12761 | htab->stub_globals += 1; | |
| 721956f4 AM |
12762 | } |
| 12763 | ||
| 12764 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12765 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12766 | free (internal_relocs); |
| 721956f4 | 12767 | } |
| 6cdc0ccc AM |
12768 | |
| 12769 | if (local_syms != NULL | |
| 12770 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12771 | { | |
| 12772 | if (!info->keep_memory) | |
| 12773 | free (local_syms); | |
| 12774 | else | |
| 12775 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12776 | } | |
| 721956f4 AM |
12777 | } |
| 12778 | ||
| 5c3dead3 | 12779 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12780 | stub sections. */ |
| d4aaa2a0 AM |
12781 | for (group = htab->group; group != NULL; group = group->next) |
| 12782 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12783 | { |
| d4aaa2a0 AM |
12784 | asection *stub_sec = group->stub_sec; |
| 12785 | ||
| ea3d7d1c AM |
12786 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12787 | || stub_sec->rawsize < stub_sec->size) | |
| 12788 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12789 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12790 | stub_sec->size = 0; |
| 12791 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12792 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12793 | } |
| eea6121a AM |
12794 | |
| 12795 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12796 | htab->brlt->reloc_count = 0; |
| 12797 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12798 | if (htab->relbrlt != NULL) |
| eea6121a | 12799 | htab->relbrlt->size = 0; |
| 721956f4 | 12800 | |
| 63bc6f6c | 12801 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12802 | |
| a4b6fadd AM |
12803 | for (group = htab->group; group != NULL; group = group->next) |
| 12804 | if (group->needs_save_res) | |
| 12805 | group->stub_sec->size += htab->sfpr->size; | |
| 12806 | ||
| 176a0d42 AM |
12807 | if (info->emitrelocations |
| 12808 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12809 | { | |
| 12810 | htab->glink->reloc_count = 1; | |
| 12811 | htab->glink->flags |= SEC_RELOC; | |
| 12812 | } | |
| 12813 | ||
| 58d180e8 AM |
12814 | if (htab->glink_eh_frame != NULL |
| 12815 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12816 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12817 | { |
| 2e0ce1c8 | 12818 | size_t size = 0, align = 4; |
| 58d180e8 | 12819 | |
| d4aaa2a0 AM |
12820 | for (group = htab->group; group != NULL; group = group->next) |
| 12821 | if (group->stub_sec != NULL) | |
| 12822 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 12823 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 12824 | size += (24 + align - 1) & -align; |
| 58d180e8 | 12825 | if (size != 0) |
| 2e0ce1c8 AM |
12826 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 12827 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 12828 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
12829 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12830 | htab->glink_eh_frame->size = size; | |
| 12831 | } | |
| 12832 | ||
| e7d1c40c | 12833 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
12834 | for (group = htab->group; group != NULL; group = group->next) |
| 12835 | if (group->stub_sec != NULL) | |
| 12836 | group->stub_sec->size = ((group->stub_sec->size | |
| 12837 | + (1 << htab->params->plt_stub_align) - 1) | |
| 12838 | & -(1 << htab->params->plt_stub_align)); | |
| 12839 | ||
| 12840 | for (group = htab->group; group != NULL; group = group->next) | |
| 12841 | if (group->stub_sec != NULL | |
| 12842 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 12843 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 12844 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
12845 | break; |
| 12846 | ||
| d4aaa2a0 | 12847 | if (group == NULL |
| 58d180e8 AM |
12848 | && (htab->glink_eh_frame == NULL |
| 12849 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12850 | break; |
| 12851 | ||
| 721956f4 | 12852 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12853 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12854 | } |
| 12855 | ||
| da44f4e5 AM |
12856 | if (htab->glink_eh_frame != NULL |
| 12857 | && htab->glink_eh_frame->size != 0) | |
| 12858 | { | |
| 12859 | bfd_vma val; | |
| 12860 | bfd_byte *p, *last_fde; | |
| 12861 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 12862 | struct map_stub *group; |
| da44f4e5 AM |
12863 | |
| 12864 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12865 | if (p == NULL) | |
| 12866 | return FALSE; | |
| 12867 | htab->glink_eh_frame->contents = p; | |
| 12868 | last_fde = p; | |
| 2e0ce1c8 | 12869 | align = 4; |
| da44f4e5 AM |
12870 | |
| 12871 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12872 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 12873 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 12874 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 12875 | p += last_fde_len + 4; |
| da44f4e5 | 12876 | |
| d4aaa2a0 AM |
12877 | for (group = htab->group; group != NULL; group = group->next) |
| 12878 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
12879 | { |
| 12880 | last_fde = p; | |
| d4aaa2a0 | 12881 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 12882 | /* FDE length. */ |
| 2e0ce1c8 | 12883 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12884 | p += 4; |
| 12885 | /* CIE pointer. */ | |
| 12886 | val = p - htab->glink_eh_frame->contents; | |
| 12887 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12888 | p += 4; | |
| 12889 | /* Offset to stub section, written later. */ | |
| 12890 | p += 4; | |
| 12891 | /* stub section size. */ | |
| d4aaa2a0 | 12892 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
12893 | p += 4; |
| 12894 | /* Augmentation. */ | |
| 12895 | p += 1; | |
| d4aaa2a0 AM |
12896 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 12897 | { | |
| 12898 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12899 | ||
| 12900 | /* This FDE needs more than just the default. | |
| 12901 | Describe __tls_get_addr_opt stub LR. */ | |
| 12902 | if (to_bctrl < 64) | |
| 12903 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 12904 | else if (to_bctrl < 256) | |
| 12905 | { | |
| 12906 | *p++ = DW_CFA_advance_loc1; | |
| 12907 | *p++ = to_bctrl; | |
| 12908 | } | |
| 12909 | else if (to_bctrl < 65536) | |
| 12910 | { | |
| 12911 | *p++ = DW_CFA_advance_loc2; | |
| 12912 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 12913 | p += 2; | |
| 12914 | } | |
| 12915 | else | |
| 12916 | { | |
| 12917 | *p++ = DW_CFA_advance_loc4; | |
| 12918 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 12919 | p += 4; | |
| 12920 | } | |
| 12921 | *p++ = DW_CFA_offset_extended_sf; | |
| 12922 | *p++ = 65; | |
| 12923 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 12924 | *p++ = DW_CFA_advance_loc + 4; | |
| 12925 | *p++ = DW_CFA_restore_extended; | |
| 12926 | *p++ = 65; | |
| 12927 | } | |
| da44f4e5 | 12928 | /* Pad. */ |
| d4aaa2a0 | 12929 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
12930 | } |
| 12931 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12932 | { | |
| 12933 | last_fde = p; | |
| 2e0ce1c8 | 12934 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 12935 | /* FDE length. */ |
| 2e0ce1c8 | 12936 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12937 | p += 4; |
| 12938 | /* CIE pointer. */ | |
| 12939 | val = p - htab->glink_eh_frame->contents; | |
| 12940 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12941 | p += 4; | |
| 12942 | /* Offset to .glink, written later. */ | |
| 12943 | p += 4; | |
| 12944 | /* .glink size. */ | |
| 12945 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12946 | p += 4; | |
| 12947 | /* Augmentation. */ | |
| 12948 | p += 1; | |
| 12949 | ||
| 12950 | *p++ = DW_CFA_advance_loc + 1; | |
| 12951 | *p++ = DW_CFA_register; | |
| 12952 | *p++ = 65; | |
| 9f08fa5c | 12953 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 12954 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
12955 | *p++ = DW_CFA_restore_extended; |
| 12956 | *p++ = 65; | |
| 2e0ce1c8 | 12957 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
12958 | } |
| 12959 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12960 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12961 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 12962 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 12963 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 12964 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
12965 | htab->glink_eh_frame->size = size + pad; |
| 12966 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12967 | } | |
| 12968 | ||
| d969d15f AM |
12969 | maybe_strip_output (info, htab->brlt); |
| 12970 | if (htab->glink_eh_frame != NULL) | |
| 12971 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12972 | |
| b34976b6 | 12973 | return TRUE; |
| 721956f4 AM |
12974 | } |
| 12975 | ||
| 12976 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12977 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12978 | |
| 805fc799 | 12979 | bfd_vma |
| 1c865ab2 | 12980 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12981 | { |
| 805fc799 | 12982 | asection *s; |
| a27e685f | 12983 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12984 | |
| 43417696 AM |
12985 | if (info != NULL) |
| 12986 | { | |
| 12987 | struct elf_link_hash_entry *h; | |
| 12988 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12989 | ||
| 12990 | if (is_elf_hash_table (htab) | |
| 12991 | && htab->hgot != NULL) | |
| 12992 | h = htab->hgot; | |
| 12993 | else | |
| 12994 | { | |
| 12995 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12996 | if (is_elf_hash_table (htab)) | |
| 12997 | htab->hgot = h; | |
| 12998 | } | |
| 12999 | if (h != NULL | |
| 13000 | && h->root.type == bfd_link_hash_defined | |
| 13001 | && !h->root.linker_def | |
| 13002 | && (!is_elf_hash_table (htab) | |
| 13003 | || h->def_regular)) | |
| 13004 | { | |
| 13005 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 13006 | + h->root.u.def.section->output_offset | |
| 13007 | + h->root.u.def.section->output_section->vma); | |
| 13008 | _bfd_set_gp_value (obfd, TOCstart); | |
| 13009 | return TOCstart; | |
| 13010 | } | |
| 13011 | } | |
| 13012 | ||
| 805fc799 AM |
13013 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 13014 | order. The TOC starts where the first of these sections starts. */ | |
| 13015 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 13016 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 13017 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 13018 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 13019 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 13020 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 13021 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 13022 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
13023 | { |
| 13024 | /* This may happen for | |
| 13025 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 13026 | .toc directive | |
| 13027 | o bad linker script | |
| 13028 | o --gc-sections and empty TOC sections | |
| 13029 | ||
| 13030 | FIXME: Warn user? */ | |
| 13031 | ||
| 13032 | /* Look for a likely section. We probably won't even be | |
| 13033 | using TOCstart. */ | |
| 13034 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
13035 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 13036 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
13037 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 13038 | break; | |
| 721956f4 | 13039 | if (s == NULL) |
| 805fc799 | 13040 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 13041 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
13042 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 13043 | break; | |
| 721956f4 | 13044 | if (s == NULL) |
| 805fc799 | 13045 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
13046 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 13047 | == SEC_ALLOC) | |
| 805fc799 | 13048 | break; |
| 721956f4 | 13049 | if (s == NULL) |
| 805fc799 | 13050 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 13051 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
13052 | break; |
| 13053 | } | |
| 721956f4 | 13054 | |
| 805fc799 AM |
13055 | TOCstart = 0; |
| 13056 | if (s != NULL) | |
| 13057 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 13058 | |
| a27e685f AM |
13059 | /* Force alignment. */ |
| 13060 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 13061 | TOCstart -= adjust; | |
| 1c865ab2 AM |
13062 | _bfd_set_gp_value (obfd, TOCstart); |
| 13063 | ||
| 810d4e75 | 13064 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
13065 | { |
| 13066 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 13067 | ||
| 810d4e75 AM |
13068 | if (htab != NULL) |
| 13069 | { | |
| 13070 | if (htab->elf.hgot != NULL) | |
| 13071 | { | |
| a27e685f | 13072 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
13073 | htab->elf.hgot->root.u.def.section = s; |
| 13074 | } | |
| 13075 | } | |
| 13076 | else | |
| 1c865ab2 | 13077 | { |
| 810d4e75 AM |
13078 | struct bfd_link_hash_entry *bh = NULL; |
| 13079 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
13080 | s, TOC_BASE_OFF - adjust, |
| 13081 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
13082 | } |
| 13083 | } | |
| 805fc799 | 13084 | return TOCstart; |
| 721956f4 AM |
13085 | } |
| 13086 | ||
| a345bc8d AM |
13087 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 13088 | write out any global entry stubs. */ | |
| 13089 | ||
| 13090 | static bfd_boolean | |
| 13091 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 13092 | { | |
| 13093 | struct bfd_link_info *info; | |
| 13094 | struct ppc_link_hash_table *htab; | |
| 13095 | struct plt_entry *pent; | |
| 13096 | asection *s; | |
| 13097 | ||
| 13098 | if (h->root.type == bfd_link_hash_indirect) | |
| 13099 | return TRUE; | |
| 13100 | ||
| 13101 | if (!h->pointer_equality_needed) | |
| 13102 | return TRUE; | |
| 13103 | ||
| 13104 | if (h->def_regular) | |
| 13105 | return TRUE; | |
| 13106 | ||
| 13107 | info = inf; | |
| 13108 | htab = ppc_hash_table (info); | |
| 13109 | if (htab == NULL) | |
| 13110 | return FALSE; | |
| 13111 | ||
| 13112 | s = htab->glink; | |
| 13113 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 13114 | if (pent->plt.offset != (bfd_vma) -1 | |
| 13115 | && pent->addend == 0) | |
| 13116 | { | |
| 13117 | bfd_byte *p; | |
| 13118 | asection *plt; | |
| 13119 | bfd_vma off; | |
| 13120 | ||
| a345bc8d | 13121 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 13122 | plt = htab->elf.splt; |
| a345bc8d AM |
13123 | if (!htab->elf.dynamic_sections_created |
| 13124 | || h->dynindx == -1) | |
| 33e44f2e | 13125 | plt = htab->elf.iplt; |
| a345bc8d AM |
13126 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 13127 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 13128 | ||
| 13129 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13130 | { | |
| 13131 | info->callbacks->einfo | |
| 13132 | (_("%P: linkage table error against `%T'\n"), | |
| 13133 | h->root.root.string); | |
| 13134 | bfd_set_error (bfd_error_bad_value); | |
| 13135 | htab->stub_error = TRUE; | |
| 13136 | } | |
| 13137 | ||
| 7341d5e2 AM |
13138 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13139 | if (htab->params->emit_stub_syms) | |
| 13140 | { | |
| 13141 | size_t len = strlen (h->root.root.string); | |
| 13142 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13143 | ||
| 13144 | if (name == NULL) | |
| 13145 | return FALSE; | |
| 13146 | ||
| 13147 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13148 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13149 | if (h == NULL) | |
| 13150 | return FALSE; | |
| 13151 | if (h->root.type == bfd_link_hash_new) | |
| 13152 | { | |
| 13153 | h->root.type = bfd_link_hash_defined; | |
| 13154 | h->root.u.def.section = s; | |
| 13155 | h->root.u.def.value = p - s->contents; | |
| 13156 | h->ref_regular = 1; | |
| 13157 | h->def_regular = 1; | |
| 13158 | h->ref_regular_nonweak = 1; | |
| 13159 | h->forced_local = 1; | |
| 13160 | h->non_elf = 0; | |
| 2ec55de3 | 13161 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13162 | } |
| 13163 | } | |
| 13164 | ||
| a345bc8d AM |
13165 | if (PPC_HA (off) != 0) |
| 13166 | { | |
| 13167 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13168 | p += 4; | |
| 13169 | } | |
| 13170 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13171 | p += 4; | |
| 13172 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13173 | p += 4; | |
| 13174 | bfd_put_32 (s->owner, BCTR, p); | |
| 13175 | break; | |
| 13176 | } | |
| 13177 | return TRUE; | |
| 13178 | } | |
| 13179 | ||
| 721956f4 AM |
13180 | /* Build all the stubs associated with the current output file. |
| 13181 | The stubs are kept in a hash table attached to the main linker | |
| 13182 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13183 | ||
| b34976b6 | 13184 | bfd_boolean |
| e7d1c40c | 13185 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13186 | char **stats) |
| 5d1634d7 AM |
13187 | { |
| 13188 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13189 | struct map_stub *group; |
| 721956f4 | 13190 | asection *stub_sec; |
| 5d1634d7 | 13191 | bfd_byte *p; |
| e717da7e | 13192 | int stub_sec_count = 0; |
| 5d1634d7 | 13193 | |
| 4dfe6ac6 NC |
13194 | if (htab == NULL) |
| 13195 | return FALSE; | |
| 13196 | ||
| eea6121a | 13197 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13198 | for (group = htab->group; group != NULL; group = group->next) |
| 13199 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13200 | && stub_sec->size != 0) |
| e717da7e | 13201 | { |
| e7d1c40c | 13202 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13203 | if (stub_sec->contents == NULL) |
| 13204 | return FALSE; | |
| eea6121a | 13205 | stub_sec->size = 0; |
| e717da7e | 13206 | } |
| 5d1634d7 | 13207 | |
| 23eb7e01 | 13208 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13209 | { |
| 9f951329 | 13210 | unsigned int indx; |
| ad8e1ba5 | 13211 | bfd_vma plt0; |
| 9f951329 | 13212 | |
| 721956f4 | 13213 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13214 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13215 | { |
| 13216 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13217 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13218 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13219 | if (h == NULL) |
| 13220 | return FALSE; | |
| 13221 | if (h->root.type == bfd_link_hash_new) | |
| 13222 | { | |
| 13223 | h->root.type = bfd_link_hash_defined; | |
| 13224 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13225 | h->root.u.def.value = 8; |
| f5385ebf AM |
13226 | h->ref_regular = 1; |
| 13227 | h->def_regular = 1; | |
| 13228 | h->ref_regular_nonweak = 1; | |
| 13229 | h->forced_local = 1; | |
| 13230 | h->non_elf = 0; | |
| 2ec55de3 | 13231 | h->root.linker_def = 1; |
| 97b639ba AM |
13232 | } |
| 13233 | } | |
| 33e44f2e AM |
13234 | plt0 = (htab->elf.splt->output_section->vma |
| 13235 | + htab->elf.splt->output_offset | |
| 13236 | - 16); | |
| 176a0d42 AM |
13237 | if (info->emitrelocations) |
| 13238 | { | |
| 13239 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13240 | if (r == NULL) | |
| 13241 | return FALSE; | |
| 13242 | r->r_offset = (htab->glink->output_offset | |
| 13243 | + htab->glink->output_section->vma); | |
| 13244 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13245 | r->r_addend = plt0; | |
| 13246 | } | |
| 4ce794b7 | 13247 | p = htab->glink->contents; |
| 176a0d42 | 13248 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13249 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13250 | p += 8; | |
| b9e5796b AM |
13251 | if (htab->opd_abi) |
| 13252 | { | |
| 13253 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13254 | p += 4; | |
| 13255 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13256 | p += 4; | |
| 13257 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13258 | p += 4; | |
| 13259 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13260 | p += 4; | |
| 13261 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13262 | p += 4; | |
| 13263 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13264 | p += 4; | |
| 13265 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13266 | p += 4; | |
| 13267 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13268 | p += 4; | |
| 13269 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13270 | p += 4; | |
| 13271 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13272 | p += 4; | |
| 13273 | } | |
| 13274 | else | |
| 13275 | { | |
| 13276 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13277 | p += 4; | |
| 13278 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13279 | p += 4; | |
| 13280 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13281 | p += 4; | |
| f378ab09 AM |
13282 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13283 | p += 4; | |
| b9e5796b AM |
13284 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13285 | p += 4; | |
| 13286 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13287 | p += 4; | |
| 13288 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13289 | p += 4; | |
| 13290 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13291 | p += 4; | |
| 13292 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13293 | p += 4; | |
| 13294 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13295 | p += 4; | |
| 13296 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13297 | p += 4; | |
| 13298 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13299 | p += 4; | |
| 13300 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13301 | p += 4; | |
| 13302 | } | |
| 4ce794b7 | 13303 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 13304 | p += 4; |
| ee4bf8d2 AM |
13305 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 13306 | { | |
| 13307 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 13308 | p += 4; | |
| 13309 | } | |
| ad8e1ba5 | 13310 | |
| 9f951329 AM |
13311 | /* Build the .glink lazy link call stubs. */ |
| 13312 | indx = 0; | |
| a345bc8d | 13313 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 13314 | { |
| b9e5796b | 13315 | if (htab->opd_abi) |
| 9f951329 | 13316 | { |
| b9e5796b AM |
13317 | if (indx < 0x8000) |
| 13318 | { | |
| 13319 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13320 | p += 4; | |
| 13321 | } | |
| 13322 | else | |
| 13323 | { | |
| 13324 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13325 | p += 4; | |
| 13326 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13327 | p); | |
| 13328 | p += 4; | |
| 13329 | } | |
| 9f951329 | 13330 | } |
| 4ce794b7 | 13331 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13332 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13333 | indx++; |
| 9f951329 AM |
13334 | p += 4; |
| 13335 | } | |
| a345bc8d AM |
13336 | |
| 13337 | /* Build .glink global entry stubs. */ | |
| 13338 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13339 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13340 | } |
| 5d1634d7 | 13341 | |
| 7341d5e2 | 13342 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13343 | { |
| 4ce794b7 | 13344 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13345 | htab->brlt->size); |
| 4ce794b7 | 13346 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13347 | return FALSE; |
| 721956f4 | 13348 | } |
| ee75fd95 | 13349 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13350 | { |
| 13351 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13352 | htab->relbrlt->size); |
| 63bc6f6c AM |
13353 | if (htab->relbrlt->contents == NULL) |
| 13354 | return FALSE; | |
| 13355 | } | |
| 5d1634d7 | 13356 | |
| 721956f4 AM |
13357 | /* Build the stubs as directed by the stub hash table. */ |
| 13358 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13359 | |
| a4b6fadd AM |
13360 | for (group = htab->group; group != NULL; group = group->next) |
| 13361 | if (group->needs_save_res) | |
| 13362 | { | |
| 13363 | stub_sec = group->stub_sec; | |
| 13364 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13365 | htab->sfpr->size); | |
| 13366 | if (htab->params->emit_stub_syms) | |
| 13367 | { | |
| 13368 | unsigned int i; | |
| 13369 | ||
| 13370 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13371 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13372 | return FALSE; | |
| 13373 | } | |
| 13374 | stub_sec->size += htab->sfpr->size; | |
| 13375 | } | |
| 13376 | ||
| aa8a7074 AM |
13377 | if (htab->relbrlt != NULL) |
| 13378 | htab->relbrlt->reloc_count = 0; | |
| 13379 | ||
| e7d1c40c | 13380 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13381 | for (group = htab->group; group != NULL; group = group->next) |
| 13382 | if ((stub_sec = group->stub_sec) != NULL) | |
| e7d1c40c AM |
13383 | stub_sec->size = ((stub_sec->size |
| 13384 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13385 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13386 | |
| d4aaa2a0 AM |
13387 | for (group = htab->group; group != NULL; group = group->next) |
| 13388 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13389 | { |
| 13390 | stub_sec_count += 1; | |
| c9301e31 AM |
13391 | if (stub_sec->rawsize != stub_sec->size |
| 13392 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13393 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13394 | break; |
| 13395 | } | |
| 5d1634d7 | 13396 | |
| da44f4e5 AM |
13397 | /* Note that the glink_eh_frame check here is not only testing that |
| 13398 | the generated size matched the calculated size but also that | |
| 13399 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| d4aaa2a0 | 13400 | if (group != NULL |
| 58d180e8 AM |
13401 | || (htab->glink_eh_frame != NULL |
| 13402 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13403 | { |
| b34976b6 | 13404 | htab->stub_error = TRUE; |
| 8de848d8 | 13405 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13406 | } |
| 721956f4 | 13407 | |
| d2a300cf AM |
13408 | if (htab->stub_error) |
| 13409 | return FALSE; | |
| 13410 | ||
| 13411 | if (stats != NULL) | |
| 13412 | { | |
| 13413 | *stats = bfd_malloc (500); | |
| 13414 | if (*stats == NULL) | |
| 13415 | return FALSE; | |
| 13416 | ||
| ee75fd95 | 13417 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13418 | " branch %lu\n" |
| 13419 | " toc adjust %lu\n" | |
| 13420 | " long branch %lu\n" | |
| 13421 | " long toc adj %lu\n" | |
| 794e51c0 | 13422 | " plt call %lu\n" |
| 7341d5e2 AM |
13423 | " plt call toc %lu\n" |
| 13424 | " global entry %lu"), | |
| e717da7e | 13425 | stub_sec_count, |
| ee75fd95 | 13426 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13427 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13428 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13429 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13430 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13431 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13432 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13433 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13434 | } |
| 13435 | return TRUE; | |
| 5bd4f169 AM |
13436 | } |
| 13437 | ||
| 60124e18 AM |
13438 | /* What to do when ld finds relocations against symbols defined in |
| 13439 | discarded sections. */ | |
| 13440 | ||
| 13441 | static unsigned int | |
| 13442 | ppc64_elf_action_discarded (asection *sec) | |
| 13443 | { | |
| 13444 | if (strcmp (".opd", sec->name) == 0) | |
| 13445 | return 0; | |
| 13446 | ||
| 13447 | if (strcmp (".toc", sec->name) == 0) | |
| 13448 | return 0; | |
| 13449 | ||
| bce50a28 JJ |
13450 | if (strcmp (".toc1", sec->name) == 0) |
| 13451 | return 0; | |
| 13452 | ||
| 60124e18 AM |
13453 | return _bfd_elf_default_action_discarded (sec); |
| 13454 | } | |
| 13455 | ||
| 5bd4f169 AM |
13456 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13457 | to handle the relocations for a section. | |
| 13458 | ||
| 13459 | The relocs are always passed as Rela structures; if the section | |
| 13460 | actually uses Rel structures, the r_addend field will always be | |
| 13461 | zero. | |
| 13462 | ||
| 13463 | This function is responsible for adjust the section contents as | |
| 13464 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13465 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13466 | necessary. |
| 13467 | ||
| 13468 | This function does not have to worry about setting the reloc | |
| 13469 | address or the reloc symbol index. | |
| 13470 | ||
| 13471 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13472 | ||
| 13473 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13474 | corresponding to the st_shndx field of each local symbol. | |
| 13475 | ||
| 13476 | The global hash table entry for the global symbols can be found | |
| 13477 | via elf_sym_hashes (input_bfd). | |
| 13478 | ||
| 1049f94e | 13479 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13480 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13481 | going to be the section symbol corresponding to the output | |
| 13482 | section, which means that the addend must be adjusted | |
| 13483 | accordingly. */ | |
| 13484 | ||
| b34976b6 | 13485 | static bfd_boolean |
| 4ce794b7 AM |
13486 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13487 | struct bfd_link_info *info, | |
| 13488 | bfd *input_bfd, | |
| 13489 | asection *input_section, | |
| 13490 | bfd_byte *contents, | |
| 13491 | Elf_Internal_Rela *relocs, | |
| 13492 | Elf_Internal_Sym *local_syms, | |
| 13493 | asection **local_sections) | |
| 5bd4f169 | 13494 | { |
| 65f38f15 | 13495 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13496 | Elf_Internal_Shdr *symtab_hdr; |
| 13497 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13498 | Elf_Internal_Rela *rel; |
| c316a17c | 13499 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13500 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13501 | Elf_Internal_Rela outrel; |
| 13502 | bfd_byte *loc; | |
| 411e1bfb | 13503 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13504 | bfd_vma TOCstart; |
| b34976b6 AM |
13505 | bfd_boolean ret = TRUE; |
| 13506 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13507 | /* Assume 'at' branch hints. */ |
| 13508 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13509 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13510 | |
| 65f38f15 | 13511 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13512 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13513 | ppc_howto_init (); |
| 13514 | ||
| 65f38f15 | 13515 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13516 | if (htab == NULL) |
| 13517 | return FALSE; | |
| ee75fd95 AM |
13518 | |
| 13519 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13520 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13521 | return TRUE; |
| 13522 | ||
| 0c8d6e5c | 13523 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13524 | |
| 411e1bfb | 13525 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13526 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13527 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13528 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13529 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13530 | |
| c316a17c | 13531 | rel = wrel = relocs; |
| 5bd4f169 | 13532 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13533 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13534 | { |
| 04c9666a | 13535 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13536 | bfd_vma addend; |
| 5bd4f169 AM |
13537 | bfd_reloc_status_type r; |
| 13538 | Elf_Internal_Sym *sym; | |
| 13539 | asection *sec; | |
| 039b3fef AM |
13540 | struct elf_link_hash_entry *h_elf; |
| 13541 | struct ppc_link_hash_entry *h; | |
| 13542 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13543 | const char *sym_name; |
| 0d4792f7 | 13544 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13545 | bfd_vma toc_addend; |
| f961d9dd AM |
13546 | unsigned char tls_mask, tls_gd, tls_type; |
| 13547 | unsigned char sym_type; | |
| 5bd4f169 | 13548 | bfd_vma relocation; |
| b34976b6 AM |
13549 | bfd_boolean unresolved_reloc; |
| 13550 | bfd_boolean warned; | |
| bc30df16 | 13551 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13552 | unsigned int insn; |
| e11840f9 | 13553 | unsigned int mask; |
| 721956f4 AM |
13554 | struct ppc_stub_hash_entry *stub_entry; |
| 13555 | bfd_vma max_br_offset; | |
| 13556 | bfd_vma from; | |
| c316a17c | 13557 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13558 | reloc_howto_type *howto; |
| 13559 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13560 | |
| c316a17c AM |
13561 | again: |
| 13562 | orig_rel = *rel; | |
| 13563 | ||
| 4ce794b7 | 13564 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13565 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13566 | |
| 13567 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13568 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13569 | proper TOC base to use. */ | |
| 13570 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13571 | && wrel != relocs |
| 13572 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13573 | && is_opd) |
| c316a17c | 13574 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13575 | |
| 4ce794b7 AM |
13576 | sym = NULL; |
| 13577 | sec = NULL; | |
| 039b3fef | 13578 | h_elf = NULL; |
| 4ce794b7 | 13579 | sym_name = NULL; |
| b34976b6 AM |
13580 | unresolved_reloc = FALSE; |
| 13581 | warned = FALSE; | |
| 65f38f15 | 13582 | |
| 0b13192e | 13583 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13584 | { |
| 13585 | /* It's a local symbol. */ | |
| 74f0fb50 | 13586 | struct _opd_sec_data *opd; |
| 4025353c | 13587 | |
| 5bd4f169 AM |
13588 | sym = local_syms + r_symndx; |
| 13589 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13590 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13591 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13592 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13593 | opd = get_opd_info (sec); |
| 13594 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13595 | { |
| 51aecdc5 AM |
13596 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13597 | + rel->r_addend)]; | |
| 4025353c AM |
13598 | if (adjust == -1) |
| 13599 | relocation = 0; | |
| 13600 | else | |
| 4cc603a5 AM |
13601 | { |
| 13602 | /* If this is a relocation against the opd section sym | |
| 13603 | and we have edited .opd, adjust the reloc addend so | |
| 13604 | that ld -r and ld --emit-relocs output is correct. | |
| 13605 | If it is a reloc against some other .opd symbol, | |
| 13606 | then the symbol value will be adjusted later. */ | |
| 13607 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13608 | rel->r_addend += adjust; | |
| 13609 | else | |
| 13610 | relocation += adjust; | |
| 13611 | } | |
| 1e2f5b6e | 13612 | } |
| 5bd4f169 AM |
13613 | } |
| 13614 | else | |
| 13615 | { | |
| 62d887d4 L |
13616 | bfd_boolean ignored; |
| 13617 | ||
| b2a8e766 AM |
13618 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13619 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13620 | h_elf, sec, relocation, |
| 62d887d4 | 13621 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13622 | sym_name = h_elf->root.root.string; |
| 13623 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13624 | if (sec != NULL |
| 13625 | && sec->owner == output_bfd | |
| 13626 | && strcmp (sec->name, ".opd") == 0) | |
| 13627 | { | |
| 13628 | /* This is a symbol defined in a linker script. All | |
| 13629 | such are defined in output sections, even those | |
| 13630 | defined by simple assignment from a symbol defined in | |
| 13631 | an input section. Transfer the symbol to an | |
| 13632 | appropriate input .opd section, so that a branch to | |
| 13633 | this symbol will be mapped to the location specified | |
| 13634 | by the opd entry. */ | |
| 13635 | struct bfd_link_order *lo; | |
| 13636 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13637 | if (lo->type == bfd_indirect_link_order) | |
| 13638 | { | |
| 13639 | asection *isec = lo->u.indirect.section; | |
| 13640 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13641 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13642 | + isec->size)) | |
| 13643 | { | |
| 13644 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13645 | h_elf->root.u.def.section = isec; | |
| 13646 | sec = isec; | |
| 13647 | break; | |
| 13648 | } | |
| 13649 | } | |
| 13650 | } | |
| 5bd4f169 | 13651 | } |
| 039b3fef | 13652 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13653 | |
| dbaa2011 | 13654 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13655 | { |
| 13656 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13657 | input_bfd, input_section, | |
| 13658 | contents + rel->r_offset); | |
| 13659 | wrel->r_offset = rel->r_offset; | |
| 13660 | wrel->r_info = 0; | |
| 13661 | wrel->r_addend = 0; | |
| 13662 | ||
| 13663 | /* For ld -r, remove relocations in debug sections against | |
| 13664 | sections defined in discarded sections. Not done for | |
| 13665 | non-debug to preserve relocs in .eh_frame which the | |
| 13666 | eh_frame editing code expects to be present. */ | |
| 13667 | if (bfd_link_relocatable (info) | |
| 13668 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13669 | wrel--; | |
| 13670 | ||
| 13671 | continue; | |
| 13672 | } | |
| ab96bf03 | 13673 | |
| 0e1862bb | 13674 | if (bfd_link_relocatable (info)) |
| c316a17c | 13675 | goto copy_reloc; |
| ab96bf03 | 13676 | |
| f40da81b AM |
13677 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13678 | { | |
| 6f20ed8a | 13679 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13680 | sec = bfd_abs_section_ptr; |
| 13681 | unresolved_reloc = FALSE; | |
| 13682 | } | |
| 13683 | ||
| 951fd09b AM |
13684 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13685 | based on information we collected in tls_optimize. We edit | |
| 13686 | RELOCS so that --emit-relocs will output something sensible | |
| 13687 | for the final instruction stream. */ | |
| 13688 | tls_mask = 0; | |
| 13689 | tls_gd = 0; | |
| 0d4792f7 | 13690 | toc_symndx = 0; |
| 727fc41e AM |
13691 | if (h != NULL) |
| 13692 | tls_mask = h->tls_mask; | |
| 13693 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13694 | { |
| e054468f AM |
13695 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13696 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13697 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13698 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13699 | tls_mask = lgot_masks[r_symndx]; |
| 13700 | } | |
| 13701 | if (tls_mask == 0 | |
| 13702 | && (r_type == R_PPC64_TLS | |
| 13703 | || r_type == R_PPC64_TLSGD | |
| 13704 | || r_type == R_PPC64_TLSLD)) | |
| 13705 | { | |
| 13706 | /* Check for toc tls entries. */ | |
| f961d9dd | 13707 | unsigned char *toc_tls; |
| 0d4792f7 | 13708 | |
| 727fc41e AM |
13709 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13710 | &local_syms, rel, input_bfd)) | |
| 13711 | return FALSE; | |
| 0d4792f7 | 13712 | |
| 727fc41e AM |
13713 | if (toc_tls) |
| 13714 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13715 | } |
| 13716 | ||
| 13717 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13718 | relocs are used with non-tls syms. */ | |
| cf35638d | 13719 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13720 | && r_type != R_PPC64_NONE |
| 13721 | && (h == NULL | |
| 039b3fef AM |
13722 | || h->elf.root.type == bfd_link_hash_defined |
| 13723 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13724 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13725 | != (sym_type == STT_TLS | |
| 13726 | || (sym_type == STT_SECTION | |
| 13727 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13728 | { |
| 727fc41e AM |
13729 | if (tls_mask != 0 |
| 13730 | && (r_type == R_PPC64_TLS | |
| 13731 | || r_type == R_PPC64_TLSGD | |
| 13732 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13733 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13734 | ; | |
| 13735 | else | |
| 25f53a85 | 13736 | info->callbacks->einfo |
| 1d483afe | 13737 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13738 | /* xgettext:c-format */ |
| 174d0a74 | 13739 | ? _("%H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13740 | /* xgettext:c-format */ |
| 174d0a74 | 13741 | : _("%H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13742 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13743 | ppc64_elf_howto_table[r_type]->name, |
| 13744 | sym_name); | |
| 411e1bfb AM |
13745 | } |
| 13746 | ||
| 13747 | /* Ensure reloc mapping code below stays sane. */ | |
| 13748 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13749 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13750 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13751 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13752 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13753 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13754 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13755 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13756 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13757 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13758 | abort (); | |
| 0d4792f7 | 13759 | |
| 411e1bfb AM |
13760 | switch (r_type) |
| 13761 | { | |
| 13762 | default: | |
| 411e1bfb AM |
13763 | break; |
| 13764 | ||
| ba761f19 | 13765 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13766 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13767 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13768 | abort (); | |
| 13769 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13770 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13771 | r_type = R_PPC64_TOC16_LO; |
| 13772 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13773 | break; | |
| 13774 | ||
| 411e1bfb AM |
13775 | case R_PPC64_TOC16: |
| 13776 | case R_PPC64_TOC16_LO: | |
| 13777 | case R_PPC64_TOC16_DS: | |
| 13778 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13779 | { |
| 13780 | /* Check for toc tls entries. */ | |
| f961d9dd | 13781 | unsigned char *toc_tls; |
| 951fd09b | 13782 | int retval; |
| 411e1bfb | 13783 | |
| 3a71aa26 AM |
13784 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13785 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13786 | if (retval == 0) |
| 411e1bfb AM |
13787 | return FALSE; |
| 13788 | ||
| 13789 | if (toc_tls) | |
| 13790 | { | |
| 951fd09b | 13791 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13792 | if (r_type == R_PPC64_TOC16_DS |
| 13793 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13794 | { |
| 13795 | if (tls_mask != 0 | |
| 13796 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13797 | goto toctprel; | |
| 13798 | } | |
| 411e1bfb | 13799 | else |
| 951fd09b AM |
13800 | { |
| 13801 | /* If we found a GD reloc pair, then we might be | |
| 13802 | doing a GD->IE transition. */ | |
| 13803 | if (retval == 2) | |
| 13804 | { | |
| 13805 | tls_gd = TLS_TPRELGD; | |
| 13806 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13807 | goto tls_ldgd_opt; |
| 951fd09b AM |
13808 | } |
| 13809 | else if (retval == 3) | |
| 13810 | { | |
| 13811 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13812 | goto tls_ldgd_opt; |
| 951fd09b AM |
13813 | } |
| 13814 | } | |
| 411e1bfb AM |
13815 | } |
| 13816 | } | |
| 13817 | break; | |
| 13818 | ||
| 9d6ded02 AM |
13819 | case R_PPC64_GOT_TPREL16_HI: |
| 13820 | case R_PPC64_GOT_TPREL16_HA: | |
| 13821 | if (tls_mask != 0 | |
| 13822 | && (tls_mask & TLS_TPREL) == 0) | |
| 13823 | { | |
| 13824 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13825 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13826 | r_type = R_PPC64_NONE; |
| 13827 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13828 | } | |
| 13829 | break; | |
| 13830 | ||
| 411e1bfb AM |
13831 | case R_PPC64_GOT_TPREL16_DS: |
| 13832 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13833 | if (tls_mask != 0 |
| 13834 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13835 | { |
| 81407a69 | 13836 | toctprel: |
| 95f0d0d2 | 13837 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13838 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13839 | insn &= 31 << 21; |
| 13840 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13841 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13842 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13843 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13844 | if (toc_symndx != 0) |
| 13845 | { | |
| 13846 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13847 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13848 | /* We changed the symbol. Start over in order to |
| 13849 | get h, sym, sec etc. right. */ | |
| c316a17c | 13850 | goto again; |
| 0d4792f7 AM |
13851 | } |
| 13852 | else | |
| 13853 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13854 | } |
| 13855 | break; | |
| 13856 | ||
| 13857 | case R_PPC64_TLS: | |
| 951fd09b AM |
13858 | if (tls_mask != 0 |
| 13859 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13860 | { |
| 95f0d0d2 | 13861 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13862 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13863 | if (insn == 0) | |
| 411e1bfb | 13864 | abort (); |
| 95f0d0d2 | 13865 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13866 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13867 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13868 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13869 | r_type = R_PPC64_TPREL16_LO; |
| 13870 | if (toc_symndx != 0) | |
| 13871 | { | |
| 13872 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13873 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13874 | /* We changed the symbol. Start over in order to |
| 13875 | get h, sym, sec etc. right. */ | |
| c316a17c | 13876 | goto again; |
| 0d4792f7 AM |
13877 | } |
| 13878 | else | |
| 13879 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13880 | } |
| 13881 | break; | |
| 13882 | ||
| 411e1bfb AM |
13883 | case R_PPC64_GOT_TLSGD16_HI: |
| 13884 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13885 | tls_gd = TLS_TPRELGD; |
| 13886 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13887 | goto tls_gdld_hi; | |
| 13888 | break; | |
| 13889 | ||
| 411e1bfb AM |
13890 | case R_PPC64_GOT_TLSLD16_HI: |
| 13891 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13892 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13893 | { |
| 951fd09b AM |
13894 | tls_gdld_hi: |
| 13895 | if ((tls_mask & tls_gd) != 0) | |
| 13896 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13897 | + R_PPC64_GOT_TPREL16_DS); | |
| 13898 | else | |
| 411e1bfb | 13899 | { |
| 4fe5ca5b | 13900 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13901 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13902 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13903 | } |
| 951fd09b | 13904 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13905 | } |
| 13906 | break; | |
| 13907 | ||
| 951fd09b AM |
13908 | case R_PPC64_GOT_TLSGD16: |
| 13909 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13910 | tls_gd = TLS_TPRELGD; | |
| 13911 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13912 | goto tls_ldgd_opt; |
| 951fd09b | 13913 | break; |
| 411e1bfb | 13914 | |
| 951fd09b AM |
13915 | case R_PPC64_GOT_TLSLD16: |
| 13916 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13917 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13918 | { | |
| 3a71aa26 | 13919 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13920 | bfd_vma offset; |
| 13921 | ||
| 13922 | tls_ldgd_opt: | |
| 727fc41e AM |
13923 | offset = (bfd_vma) -1; |
| 13924 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13925 | __tls_get_addr calls, we must trust that the call | |
| 13926 | stays with its arg setup insns, ie. that the next | |
| 13927 | reloc is the __tls_get_addr call associated with | |
| 13928 | the current reloc. Edit both insns. */ | |
| 13929 | if (input_section->has_tls_get_addr_call | |
| 13930 | && rel + 1 < relend | |
| 13931 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13932 | htab->tls_get_addr, | |
| 13933 | htab->tls_get_addr_fd)) | |
| 13934 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13935 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13936 | need to keep the destination reg. It may be | |
| 13937 | something other than the usual r3, and moved to r3 | |
| 13938 | before the call by intervening code. */ | |
| 95f0d0d2 | 13939 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13940 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13941 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13942 | { |
| 102890f0 | 13943 | /* IE */ |
| b86ac8e3 | 13944 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13945 | insn1 |= 58 << 26; /* ld */ |
| 13946 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13947 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13948 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13949 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13950 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13951 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13952 | else |
| 102890f0 AM |
13953 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13954 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13955 | } | |
| 13956 | else | |
| 13957 | { | |
| 13958 | /* LE */ | |
| b86ac8e3 AM |
13959 | insn1 &= 0x1f << 21; |
| 13960 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13961 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13962 | if (tls_gd == 0) | |
| 951fd09b | 13963 | { |
| 102890f0 | 13964 | /* Was an LD reloc. */ |
| 1d483afe AM |
13965 | if (toc_symndx) |
| 13966 | sec = local_sections[toc_symndx]; | |
| 13967 | for (r_symndx = 0; | |
| 13968 | r_symndx < symtab_hdr->sh_info; | |
| 13969 | r_symndx++) | |
| 13970 | if (local_sections[r_symndx] == sec) | |
| 13971 | break; | |
| 13972 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13973 | r_symndx = STN_UNDEF; |
| 102890f0 | 13974 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13975 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13976 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13977 | + sec->output_offset | |
| 13978 | + sec->output_section->vma); | |
| 951fd09b | 13979 | } |
| 102890f0 | 13980 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13981 | { |
| 13982 | r_symndx = toc_symndx; | |
| 13983 | rel->r_addend = toc_addend; | |
| 13984 | } | |
| 102890f0 AM |
13985 | r_type = R_PPC64_TPREL16_HA; |
| 13986 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13987 | if (offset != (bfd_vma) -1) |
| 13988 | { | |
| 13989 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13990 | R_PPC64_TPREL16_LO); | |
| 13991 | rel[1].r_offset = offset + d_offset; | |
| 13992 | rel[1].r_addend = rel->r_addend; | |
| 13993 | } | |
| 102890f0 | 13994 | } |
| 95f0d0d2 | 13995 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13996 | contents + rel->r_offset - d_offset); |
| 727fc41e AM |
13997 | if (offset != (bfd_vma) -1) |
| 13998 | { | |
| 95f0d0d2 | 13999 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
14000 | contents + offset + 4); |
| 14001 | if (insn3 == NOP | |
| 14002 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 14003 | { | |
| 14004 | rel[1].r_offset += 4; | |
| 95f0d0d2 | 14005 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
14006 | insn2 = NOP; |
| 14007 | } | |
| 95f0d0d2 | 14008 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
14009 | } |
| 14010 | if ((tls_mask & tls_gd) == 0 | |
| 14011 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 14012 | { | |
| 14013 | /* We changed the symbol. Start over in order | |
| 14014 | to get h, sym, sec etc. right. */ | |
| c316a17c | 14015 | goto again; |
| 727fc41e AM |
14016 | } |
| 14017 | } | |
| 14018 | break; | |
| 14019 | ||
| 14020 | case R_PPC64_TLSGD: | |
| 14021 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 14022 | { | |
| 14023 | unsigned int insn2, insn3; | |
| 14024 | bfd_vma offset = rel->r_offset; | |
| 14025 | ||
| 14026 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 14027 | { | |
| 14028 | /* IE */ | |
| 14029 | r_type = R_PPC64_NONE; | |
| 14030 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 14031 | } | |
| 14032 | else | |
| 14033 | { | |
| 14034 | /* LE */ | |
| 14035 | if (toc_symndx != 0) | |
| 14036 | { | |
| 14037 | r_symndx = toc_symndx; | |
| 14038 | rel->r_addend = toc_addend; | |
| 14039 | } | |
| 14040 | r_type = R_PPC64_TPREL16_LO; | |
| 14041 | rel->r_offset = offset + d_offset; | |
| 14042 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 14043 | } | |
| 14044 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14045 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 14046 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 14047 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 14048 | insn3 = bfd_get_32 (input_bfd, |
| 3a71aa26 | 14049 | contents + offset + 4); |
| 102890f0 AM |
14050 | if (insn3 == NOP |
| 14051 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 14052 | { | |
| 727fc41e | 14053 | rel->r_offset += 4; |
| 95f0d0d2 | 14054 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 3a71aa26 | 14055 | insn2 = NOP; |
| 102890f0 | 14056 | } |
| 95f0d0d2 | 14057 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 14058 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 14059 | goto again; |
| 411e1bfb | 14060 | } |
| 411e1bfb AM |
14061 | break; |
| 14062 | ||
| 727fc41e AM |
14063 | case R_PPC64_TLSLD: |
| 14064 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 14065 | { | |
| 14066 | unsigned int insn2, insn3; | |
| 14067 | bfd_vma offset = rel->r_offset; | |
| 14068 | ||
| 14069 | if (toc_symndx) | |
| 14070 | sec = local_sections[toc_symndx]; | |
| 14071 | for (r_symndx = 0; | |
| 14072 | r_symndx < symtab_hdr->sh_info; | |
| 14073 | r_symndx++) | |
| 14074 | if (local_sections[r_symndx] == sec) | |
| 14075 | break; | |
| 14076 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 14077 | r_symndx = STN_UNDEF; |
| 727fc41e | 14078 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 14079 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
14080 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 14081 | + sec->output_offset | |
| 14082 | + sec->output_section->vma); | |
| 14083 | ||
| 14084 | r_type = R_PPC64_TPREL16_LO; | |
| 14085 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14086 | rel->r_offset = offset + d_offset; | |
| 14087 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 14088 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 14089 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 14090 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 14091 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
14092 | contents + offset + 4); |
| 14093 | if (insn3 == NOP | |
| 14094 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 14095 | { | |
| 14096 | rel->r_offset += 4; | |
| 95f0d0d2 | 14097 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
14098 | insn2 = NOP; |
| 14099 | } | |
| 95f0d0d2 | 14100 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 14101 | goto again; |
| 727fc41e AM |
14102 | } |
| 14103 | break; | |
| 14104 | ||
| 411e1bfb | 14105 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
14106 | if (rel + 1 < relend |
| 14107 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 14108 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 14109 | { |
| 951fd09b AM |
14110 | if ((tls_mask & TLS_GD) == 0) |
| 14111 | { | |
| 14112 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 14113 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 14114 | r_type = R_PPC64_TPREL64; | |
| 14115 | else | |
| 14116 | { | |
| 4ce794b7 | 14117 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
14118 | r_type = R_PPC64_NONE; |
| 14119 | } | |
| 14120 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14121 | } | |
| 14122 | } | |
| 14123 | else | |
| 14124 | { | |
| 14125 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 14126 | { |
| 4ce794b7 | 14127 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 14128 | r_type = R_PPC64_NONE; |
| 951fd09b | 14129 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 14130 | } |
| 411e1bfb AM |
14131 | } |
| 14132 | break; | |
| 14133 | ||
| 14134 | case R_PPC64_TPREL64: | |
| 951fd09b | 14135 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
14136 | { |
| 14137 | r_type = R_PPC64_NONE; | |
| 14138 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14139 | } | |
| 14140 | break; | |
| 52a82034 | 14141 | |
| 006589cf AM |
14142 | case R_PPC64_ENTRY: |
| 14143 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 14144 | if (!bfd_link_pic (info) | |
| 14145 | && !info->traditional_format | |
| 14146 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14147 | { | |
| 14148 | unsigned int insn1, insn2; | |
| 14149 | ||
| 14150 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14151 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14152 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14153 | && insn2 == ADD_R2_R2_R12) | |
| 14154 | { | |
| 95f0d0d2 | 14155 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14156 | LIS_R2 + PPC_HA (relocation), |
| 14157 | contents + rel->r_offset); | |
| 95f0d0d2 | 14158 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14159 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14160 | contents + rel->r_offset + 4); | |
| 14161 | } | |
| 14162 | } | |
| 14163 | else | |
| 14164 | { | |
| 14165 | relocation -= (rel->r_offset | |
| 14166 | + input_section->output_offset | |
| 14167 | + input_section->output_section->vma); | |
| 14168 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14169 | { | |
| 14170 | unsigned int insn1, insn2; | |
| 14171 | ||
| 14172 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14173 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14174 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14175 | && insn2 == ADD_R2_R2_R12) | |
| 14176 | { | |
| 95f0d0d2 | 14177 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14178 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14179 | contents + rel->r_offset); | |
| 95f0d0d2 | 14180 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14181 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14182 | contents + rel->r_offset + 4); | |
| 14183 | } | |
| 14184 | } | |
| 14185 | } | |
| 14186 | break; | |
| 14187 | ||
| 52a82034 AM |
14188 | case R_PPC64_REL16_HA: |
| 14189 | /* If we are generating a non-PIC executable, edit | |
| 14190 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14191 | . addi 2,2,.TOC.-0b@l | |
| 14192 | used by ELFv2 global entry points to set up r2, to | |
| 14193 | . lis 2,.TOC.@ha | |
| 14194 | . addi 2,2,.TOC.@l | |
| 14195 | if .TOC. is in range. */ | |
| 0e1862bb | 14196 | if (!bfd_link_pic (info) |
| 810d4e75 | 14197 | && !info->traditional_format |
| 006589cf | 14198 | && !htab->opd_abi |
| 4f038ee5 | 14199 | && rel->r_addend == d_offset |
| 52a82034 AM |
14200 | && h != NULL && &h->elf == htab->elf.hgot |
| 14201 | && rel + 1 < relend | |
| 14202 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14203 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14204 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14205 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14206 | { | |
| 14207 | unsigned int insn1, insn2; | |
| 14208 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14209 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14210 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14211 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14212 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14213 | { |
| 14214 | r_type = R_PPC64_ADDR16_HA; | |
| 14215 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14216 | rel->r_addend -= d_offset; | |
| 14217 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14218 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14219 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14220 | } |
| 14221 | } | |
| 14222 | break; | |
| 411e1bfb AM |
14223 | } |
| 14224 | ||
| 14225 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14226 | insn = 0; |
| b25116a9 AM |
14227 | max_br_offset = 1 << 25; |
| 14228 | addend = rel->r_addend; | |
| bc30df16 | 14229 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14230 | switch (r_type) |
| 5bd4f169 AM |
14231 | { |
| 14232 | default: | |
| 65f38f15 | 14233 | break; |
| 5bd4f169 | 14234 | |
| 3b421ab3 AM |
14235 | case R_PPC64_TOCSAVE: |
| 14236 | if (relocation + addend == (rel->r_offset | |
| 14237 | + input_section->output_offset | |
| 14238 | + input_section->output_section->vma) | |
| 14239 | && tocsave_find (htab, NO_INSERT, | |
| 14240 | &local_syms, rel, input_bfd)) | |
| 14241 | { | |
| 14242 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14243 | if (insn == NOP | |
| 14244 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14245 | bfd_put_32 (input_bfd, |
| 14246 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14247 | contents + rel->r_offset); |
| 14248 | } | |
| 14249 | break; | |
| 14250 | ||
| 65f38f15 AM |
14251 | /* Branch taken prediction relocations. */ |
| 14252 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14253 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14254 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14255 | /* Fall through. */ |
| 65f38f15 | 14256 | |
| 86c76c7b | 14257 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14258 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14259 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14260 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14261 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14262 | /* Fall through. */ |
| 86c76c7b | 14263 | |
| b25116a9 AM |
14264 | case R_PPC64_REL14: |
| 14265 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14266 | /* Fall through. */ |
| 5bd4f169 | 14267 | |
| 65f38f15 | 14268 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14269 | /* Calls to functions with a different TOC, such as calls to |
| 14270 | shared objects, need to alter the TOC pointer. This is | |
| 14271 | done using a linkage stub. A REL24 branching to these | |
| 14272 | linkage stubs needs to be followed by a nop, as the nop | |
| 14273 | will be replaced with an instruction to restore the TOC | |
| 14274 | base pointer. */ | |
| 8387904d | 14275 | fdh = h; |
| b31867b6 AM |
14276 | if (h != NULL |
| 14277 | && h->oh != NULL | |
| 14278 | && h->oh->is_func_descriptor) | |
| 14279 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14280 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14281 | htab); | |
| 6abec6bc | 14282 | if (stub_entry != NULL |
| ad8e1ba5 | 14283 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14284 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14285 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14286 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14287 | { |
| b25116a9 | 14288 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14289 | |
| 6e1816be AM |
14290 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14291 | && !htab->opd_abi | |
| 14292 | && htab->params->plt_localentry0 != 0 | |
| 14293 | && is_elfv2_localentry0 (&h->elf)) | |
| 14294 | { | |
| 14295 | /* The function doesn't use or change r2. */ | |
| 14296 | can_plt_call = TRUE; | |
| 14297 | } | |
| 14298 | ||
| f378ab09 | 14299 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14300 | branch and link followed by a nop. The nop is |
| 14301 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14302 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14303 | { |
| ba8ca3e7 AM |
14304 | unsigned long br; |
| 14305 | ||
| 14306 | br = bfd_get_32 (input_bfd, | |
| 14307 | contents + rel->r_offset); | |
| 14308 | if ((br & 1) != 0) | |
| 41bd81ab | 14309 | { |
| ba8ca3e7 AM |
14310 | unsigned long nop; |
| 14311 | ||
| 14312 | nop = bfd_get_32 (input_bfd, | |
| 14313 | contents + rel->r_offset + 4); | |
| 14314 | if (nop == NOP | |
| 14315 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14316 | { |
| ba8ca3e7 AM |
14317 | if (h != NULL |
| 14318 | && (h == htab->tls_get_addr_fd | |
| 14319 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14320 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14321 | { |
| 14322 | /* Special stub used, leave nop alone. */ | |
| 14323 | } | |
| 14324 | else | |
| a078d95a AM |
14325 | bfd_put_32 (input_bfd, |
| 14326 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14327 | contents + rel->r_offset + 4); |
| 14328 | can_plt_call = TRUE; | |
| a7f2871e | 14329 | } |
| 41bd81ab | 14330 | } |
| 5bd4f169 | 14331 | } |
| 721956f4 | 14332 | |
| ba8ca3e7 | 14333 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14334 | { |
| ba8ca3e7 AM |
14335 | const char *name = h->elf.root.root.string; |
| 14336 | ||
| 14337 | if (*name == '.') | |
| 14338 | ++name; | |
| 14339 | ||
| 14340 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14341 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14342 | { |
| ba8ca3e7 AM |
14343 | /* Allow crt1 branch to go via a toc adjusting |
| 14344 | stub. Other calls that never return could do | |
| 14345 | the same, if we could detect such. */ | |
| b25116a9 | 14346 | can_plt_call = TRUE; |
| 6ab189d5 | 14347 | } |
| ba8ca3e7 AM |
14348 | } |
| 14349 | ||
| 14350 | if (!can_plt_call) | |
| 14351 | { | |
| 14352 | /* g++ as of 20130507 emits self-calls without a | |
| 14353 | following nop. This is arguably wrong since we | |
| 14354 | have conflicting information. On the one hand a | |
| 14355 | global symbol and on the other a local call | |
| 14356 | sequence, but don't error for this special case. | |
| 14357 | It isn't possible to cheaply verify we have | |
| 14358 | exactly such a call. Allow all calls to the same | |
| 14359 | section. */ | |
| 14360 | asection *code_sec = sec; | |
| 14361 | ||
| 14362 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14363 | { |
| ba8ca3e7 AM |
14364 | bfd_vma off = (relocation + addend |
| 14365 | - sec->output_section->vma | |
| 14366 | - sec->output_offset); | |
| bc30df16 | 14367 | |
| ba8ca3e7 | 14368 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14369 | } |
| ba8ca3e7 AM |
14370 | if (code_sec == input_section) |
| 14371 | can_plt_call = TRUE; | |
| 14372 | } | |
| 14373 | ||
| 14374 | if (!can_plt_call) | |
| 14375 | { | |
| 4805fc55 AM |
14376 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14377 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14378 | info->callbacks->einfo | |
| 695344c0 | 14379 | /* xgettext:c-format */ |
| 174d0a74 | 14380 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14381 | "recompile with -fPIC\n"), |
| 14382 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14383 | else | |
| 14384 | info->callbacks->einfo | |
| 695344c0 | 14385 | /* xgettext:c-format */ |
| 174d0a74 | 14386 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14387 | "(-mcmodel=small toc adjust stub)\n"), |
| 14388 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14389 | |
| 14390 | bfd_set_error (bfd_error_bad_value); | |
| 14391 | ret = FALSE; | |
| 721956f4 AM |
14392 | } |
| 14393 | ||
| b25116a9 | 14394 | if (can_plt_call |
| 794e51c0 AM |
14395 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14396 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14397 | unresolved_reloc = FALSE; |
| 14398 | } | |
| 14399 | ||
| 6abec6bc AM |
14400 | if ((stub_entry == NULL |
| 14401 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14402 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14403 | && get_opd_info (sec) != NULL) |
| 14404 | { | |
| 14405 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14406 | bfd_vma off = (relocation + addend |
| 14407 | - sec->output_section->vma | |
| 14408 | - sec->output_offset); | |
| aef36ac1 | 14409 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14410 | if (dest != (bfd_vma) -1) |
| 14411 | { | |
| 14412 | relocation = dest; | |
| 14413 | addend = 0; | |
| bc30df16 | 14414 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14415 | } |
| 14416 | } | |
| 14417 | ||
| b25116a9 AM |
14418 | /* If the branch is out of reach we ought to have a long |
| 14419 | branch stub. */ | |
| 14420 | from = (rel->r_offset | |
| 14421 | + input_section->output_offset | |
| 14422 | + input_section->output_section->vma); | |
| 14423 | ||
| 6911b7dc AM |
14424 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14425 | ? fdh->elf.other | |
| 14426 | : sym->st_other); | |
| 14427 | ||
| 6abec6bc AM |
14428 | if (stub_entry != NULL |
| 14429 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14430 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14431 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14432 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14433 | || (relocation + addend - from + max_br_offset | |
| 14434 | < 2 * max_br_offset))) | |
| 14435 | /* Don't use the stub if this branch is in range. */ | |
| 14436 | stub_entry = NULL; | |
| b25116a9 AM |
14437 | |
| 14438 | if (stub_entry != NULL) | |
| 14439 | { | |
| 14440 | /* Munge up the value and addend so that we call the stub | |
| 14441 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14442 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14443 | ||
| 14444 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14445 | relocation += (stub_sec->output_offset | |
| 14446 | + stub_sec->output_section->vma | |
| 14447 | + stub_sec->size - htab->sfpr->size | |
| 14448 | - htab->sfpr->output_offset | |
| 14449 | - htab->sfpr->output_section->vma); | |
| 14450 | else | |
| 14451 | relocation = (stub_entry->stub_offset | |
| 14452 | + stub_sec->output_offset | |
| 14453 | + stub_sec->output_section->vma); | |
| b25116a9 | 14454 | addend = 0; |
| bc30df16 | 14455 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14456 | |
| 954b63d4 | 14457 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14458 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14459 | && (ALWAYS_EMIT_R2SAVE | |
| 14460 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14461 | && rel + 1 < relend |
| 14462 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14463 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14464 | relocation += 4; | |
| b25116a9 AM |
14465 | } |
| 14466 | ||
| 14467 | if (insn != 0) | |
| 14468 | { | |
| 794e51c0 | 14469 | if (is_isa_v2) |
| 721956f4 | 14470 | { |
| b25116a9 AM |
14471 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14472 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14473 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14474 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14475 | insn |= 0x02 << 21; | |
| 14476 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14477 | insn |= 0x08 << 21; | |
| 14478 | else | |
| 14479 | break; | |
| 14480 | } | |
| 14481 | else | |
| 14482 | { | |
| 14483 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14484 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14485 | insn ^= 0x01 << 21; |
| 721956f4 | 14486 | } |
| b25116a9 | 14487 | |
| 95f0d0d2 | 14488 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14489 | } |
| e86ce104 | 14490 | |
| 06da1e8e AM |
14491 | /* NOP out calls to undefined weak functions. |
| 14492 | We can thus call a weak function without first | |
| 14493 | checking whether the function is defined. */ | |
| b25116a9 | 14494 | else if (h != NULL |
| 039b3fef | 14495 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14496 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14497 | && r_type == R_PPC64_REL24 |
| 14498 | && relocation == 0 | |
| 4cc603a5 | 14499 | && addend == 0) |
| e86ce104 | 14500 | { |
| 95f0d0d2 | 14501 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14502 | goto copy_reloc; |
| e86ce104 | 14503 | } |
| 65f38f15 AM |
14504 | break; |
| 14505 | } | |
| 5bd4f169 | 14506 | |
| 65f38f15 | 14507 | /* Set `addend'. */ |
| 411e1bfb | 14508 | tls_type = 0; |
| 65f38f15 AM |
14509 | switch (r_type) |
| 14510 | { | |
| 14511 | default: | |
| 25f53a85 | 14512 | info->callbacks->einfo |
| 695344c0 | 14513 | /* xgettext:c-format */ |
| bc30df16 | 14514 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14515 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14516 | |
| 65f38f15 | 14517 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14518 | ret = FALSE; |
| c316a17c | 14519 | goto copy_reloc; |
| 5bd4f169 | 14520 | |
| 65f38f15 | 14521 | case R_PPC64_NONE: |
| 411e1bfb | 14522 | case R_PPC64_TLS: |
| 727fc41e AM |
14523 | case R_PPC64_TLSGD: |
| 14524 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14525 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14526 | case R_PPC64_GNU_VTINHERIT: |
| 14527 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14528 | case R_PPC64_ENTRY: |
| c316a17c | 14529 | goto copy_reloc; |
| 5bd4f169 AM |
14530 | |
| 14531 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14532 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14533 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14534 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14535 | case R_PPC64_GOT_TLSGD16: |
| 14536 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14537 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14538 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14539 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14540 | goto dogot; |
| 14541 | ||
| 14542 | case R_PPC64_GOT_TLSLD16: | |
| 14543 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14544 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14545 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14546 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14547 | goto dogot; |
| 14548 | ||
| 14549 | case R_PPC64_GOT_TPREL16_DS: | |
| 14550 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14551 | case R_PPC64_GOT_TPREL16_HI: | |
| 14552 | case R_PPC64_GOT_TPREL16_HA: | |
| 14553 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14554 | goto dogot; | |
| 14555 | ||
| 14556 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14557 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14558 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14559 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14560 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14561 | goto dogot; | |
| 14562 | ||
| 65f38f15 AM |
14563 | case R_PPC64_GOT16: |
| 14564 | case R_PPC64_GOT16_LO: | |
| 14565 | case R_PPC64_GOT16_HI: | |
| 14566 | case R_PPC64_GOT16_HA: | |
| 14567 | case R_PPC64_GOT16_DS: | |
| 14568 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14569 | dogot: |
| 5bd4f169 AM |
14570 | { |
| 14571 | /* Relocation is to the entry for this symbol in the global | |
| 14572 | offset table. */ | |
| e717da7e | 14573 | asection *got; |
| d881513a | 14574 | bfd_vma *offp; |
| 5bd4f169 | 14575 | bfd_vma off; |
| d881513a | 14576 | unsigned long indx = 0; |
| 927be08e | 14577 | struct got_entry *ent; |
| 65f38f15 | 14578 | |
| d881513a AM |
14579 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14580 | && (h == NULL | |
| f5385ebf | 14581 | || !h->elf.def_dynamic)) |
| 927be08e | 14582 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14583 | else |
| 5bd4f169 | 14584 | { |
| d881513a AM |
14585 | if (h != NULL) |
| 14586 | { | |
| f0158f44 AM |
14587 | if (!htab->elf.dynamic_sections_created |
| 14588 | || h->elf.dynindx == -1 | |
| 14589 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 14590 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
14591 | /* This is actually a static link, or it is a |
| 14592 | -Bsymbolic link and the symbol is defined | |
| 14593 | locally, or the symbol was forced to be local | |
| 14594 | because of a version file. */ | |
| 14595 | ; | |
| 14596 | else | |
| 14597 | { | |
| 039b3fef | 14598 | indx = h->elf.dynindx; |
| d881513a AM |
14599 | unresolved_reloc = FALSE; |
| 14600 | } | |
| 039b3fef | 14601 | ent = h->elf.got.glist; |
| d881513a | 14602 | } |
| 411e1bfb | 14603 | else |
| 5bd4f169 | 14604 | { |
| d881513a AM |
14605 | if (local_got_ents == NULL) |
| 14606 | abort (); | |
| 14607 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14608 | } |
| d881513a AM |
14609 | |
| 14610 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14611 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14612 | && ent->owner == input_bfd |
| d881513a AM |
14613 | && ent->tls_type == tls_type) |
| 14614 | break; | |
| 5bd4f169 | 14615 | } |
| 411e1bfb | 14616 | |
| 927be08e AM |
14617 | if (ent == NULL) |
| 14618 | abort (); | |
| 14619 | if (ent->is_indirect) | |
| 14620 | ent = ent->got.ent; | |
| 14621 | offp = &ent->got.offset; | |
| 14622 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14623 | if (got == NULL) |
| 14624 | abort (); | |
| 14625 | ||
| 411e1bfb AM |
14626 | /* The offset must always be a multiple of 8. We use the |
| 14627 | least significant bit to record whether we have already | |
| 14628 | processed this entry. */ | |
| d881513a | 14629 | off = *offp; |
| 411e1bfb AM |
14630 | if ((off & 1) != 0) |
| 14631 | off &= ~1; | |
| 5bd4f169 AM |
14632 | else |
| 14633 | { | |
| 411e1bfb AM |
14634 | /* Generate relocs for the dynamic linker, except in |
| 14635 | the case of TLSLD where we'll use one entry per | |
| 14636 | module. */ | |
| 25f23106 AM |
14637 | asection *relgot; |
| 14638 | bfd_boolean ifunc; | |
| e717da7e | 14639 | |
| d881513a | 14640 | *offp = off | 1; |
| 25f23106 AM |
14641 | relgot = NULL; |
| 14642 | ifunc = (h != NULL | |
| 14643 | ? h->elf.type == STT_GNU_IFUNC | |
| 14644 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14645 | if (ifunc) |
| 82e66161 AM |
14646 | { |
| 14647 | relgot = htab->elf.irelplt; | |
| 14648 | if (indx == 0) | |
| 14649 | htab->local_ifunc_resolver = 1; | |
| 14650 | else if (is_static_defined (&h->elf)) | |
| 14651 | htab->maybe_local_ifunc_resolver = 1; | |
| 14652 | } | |
| f0158f44 AM |
14653 | else if (indx != 0 |
| 14654 | || (bfd_link_pic (info) | |
| 14655 | && (h == NULL | |
| 21d68fcd | 14656 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 AM |
14657 | || (tls_type == (TLS_TLS | TLS_LD) |
| 14658 | && !h->elf.def_dynamic)))) | |
| 19e08130 | 14659 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14660 | if (relgot != NULL) |
| 5bd4f169 | 14661 | { |
| e717da7e AM |
14662 | outrel.r_offset = (got->output_section->vma |
| 14663 | + got->output_offset | |
| 411e1bfb | 14664 | + off); |
| 4cc603a5 | 14665 | outrel.r_addend = addend; |
| d881513a | 14666 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14667 | { |
| 411e1bfb | 14668 | outrel.r_addend = 0; |
| e515b051 | 14669 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14670 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14671 | { | |
| e717da7e AM |
14672 | loc = relgot->contents; |
| 14673 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14674 | * sizeof (Elf64_External_Rela)); |
| 14675 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14676 | &outrel, loc); | |
| e515b051 | 14677 | outrel.r_offset += 8; |
| 4cc603a5 | 14678 | outrel.r_addend = addend; |
| d881513a AM |
14679 | outrel.r_info |
| 14680 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14681 | } |
| 411e1bfb | 14682 | } |
| 951fd09b | 14683 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14684 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14685 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14686 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14687 | else if (indx != 0) |
| 14688 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14689 | else | |
| 81407a69 | 14690 | { |
| 25f23106 AM |
14691 | if (ifunc) |
| 14692 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14693 | else | |
| 14694 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14695 | |
| 14696 | /* Write the .got section contents for the sake | |
| 14697 | of prelink. */ | |
| e717da7e | 14698 | loc = got->contents + off; |
| 23fbd6fa JJ |
14699 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14700 | loc); | |
| 81407a69 | 14701 | } |
| 81407a69 AM |
14702 | |
| 14703 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14704 | { |
| 14705 | outrel.r_addend += relocation; | |
| 14706 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14707 | { |
| 14708 | if (htab->elf.tls_sec == NULL) | |
| 14709 | outrel.r_addend = 0; | |
| 14710 | else | |
| 14711 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14712 | } | |
| e515b051 | 14713 | } |
| e717da7e AM |
14714 | loc = relgot->contents; |
| 14715 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14716 | * sizeof (Elf64_External_Rela)); |
| 14717 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14718 | } | |
| 14719 | ||
| ad8e1ba5 | 14720 | /* Init the .got section contents here if we're not |
| 81407a69 | 14721 | emitting a reloc. */ |
| d881513a | 14722 | else |
| 411e1bfb | 14723 | { |
| 4cc603a5 | 14724 | relocation += addend; |
| f0158f44 | 14725 | if (tls_type != 0) |
| 411e1bfb | 14726 | { |
| 989f9879 AM |
14727 | if (htab->elf.tls_sec == NULL) |
| 14728 | relocation = 0; | |
| 14729 | else | |
| 14730 | { | |
| f0158f44 AM |
14731 | if (tls_type & TLS_LD) |
| 14732 | relocation = 0; | |
| 14733 | else | |
| 14734 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 14735 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
14736 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14737 | } | |
| 5bd4f169 | 14738 | |
| f0158f44 | 14739 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14740 | { |
| 14741 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14742 | got->contents + off + 8); |
| 676ee2b5 | 14743 | relocation = 1; |
| 7b609f53 | 14744 | } |
| 411e1bfb AM |
14745 | } |
| 14746 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14747 | got->contents + off); |
| 5bd4f169 AM |
14748 | } |
| 14749 | } | |
| 14750 | ||
| 65f38f15 AM |
14751 | if (off >= (bfd_vma) -2) |
| 14752 | abort (); | |
| 14753 | ||
| bf102f86 | 14754 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14755 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14756 | } |
| 65f38f15 AM |
14757 | break; |
| 14758 | ||
| 14759 | case R_PPC64_PLT16_HA: | |
| 14760 | case R_PPC64_PLT16_HI: | |
| 14761 | case R_PPC64_PLT16_LO: | |
| 14762 | case R_PPC64_PLT32: | |
| 14763 | case R_PPC64_PLT64: | |
| 14764 | /* Relocation is to the entry for this symbol in the | |
| 14765 | procedure linkage table. */ | |
| cbf95972 AM |
14766 | { |
| 14767 | struct plt_entry **plt_list = NULL; | |
| 14768 | if (h != NULL) | |
| 14769 | plt_list = &h->elf.plt.plist; | |
| 14770 | else if (local_got_ents != NULL) | |
| 14771 | { | |
| 14772 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14773 | (local_got_ents + symtab_hdr->sh_info); | |
| 14774 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14775 | (local_plt + symtab_hdr->sh_info); | |
| 14776 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14777 | plt_list = local_plt + r_symndx; | |
| 14778 | } | |
| 14779 | if (plt_list) | |
| 14780 | { | |
| 14781 | struct plt_entry *ent; | |
| 65f38f15 | 14782 | |
| cbf95972 AM |
14783 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14784 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14785 | && ent->addend == orig_rel.r_addend) | |
| 14786 | { | |
| 14787 | asection *plt; | |
| 14788 | ||
| 14789 | plt = htab->elf.splt; | |
| 14790 | if (!htab->elf.dynamic_sections_created | |
| 14791 | || h == NULL | |
| 14792 | || h->elf.dynindx == -1) | |
| 14793 | plt = htab->elf.iplt; | |
| 14794 | relocation = (plt->output_section->vma | |
| 14795 | + plt->output_offset | |
| 14796 | + ent->plt.offset); | |
| 14797 | addend = 0; | |
| 14798 | unresolved_reloc = FALSE; | |
| 14799 | break; | |
| 14800 | } | |
| 14801 | } | |
| 14802 | } | |
| 65f38f15 | 14803 | break; |
| 5bd4f169 | 14804 | |
| 0b13192e AM |
14805 | case R_PPC64_TOC: |
| 14806 | /* Relocation value is TOC base. */ | |
| 14807 | relocation = TOCstart; | |
| cf35638d | 14808 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14809 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14810 | else if (unresolved_reloc) |
| 14811 | ; | |
| 6f20ed8a AM |
14812 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14813 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14814 | else |
| 14815 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14816 | goto dodyn; |
| 0b13192e | 14817 | |
| 5bd4f169 AM |
14818 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14819 | which is the address of the start of the TOC plus 0x8000. | |
| 14820 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14821 | in this order. */ | |
| 65f38f15 AM |
14822 | case R_PPC64_TOC16: |
| 14823 | case R_PPC64_TOC16_LO: | |
| 14824 | case R_PPC64_TOC16_HI: | |
| 14825 | case R_PPC64_TOC16_DS: | |
| 14826 | case R_PPC64_TOC16_LO_DS: | |
| 14827 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14828 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14829 | break; |
| 14830 | ||
| 14831 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14832 | case R_PPC64_SECTOFF: |
| 14833 | case R_PPC64_SECTOFF_LO: | |
| 14834 | case R_PPC64_SECTOFF_HI: | |
| 14835 | case R_PPC64_SECTOFF_DS: | |
| 14836 | case R_PPC64_SECTOFF_LO_DS: | |
| 14837 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14838 | if (sec != NULL) |
| 65f38f15 | 14839 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14840 | break; |
| 14841 | ||
| 25f23106 AM |
14842 | case R_PPC64_REL16: |
| 14843 | case R_PPC64_REL16_LO: | |
| 14844 | case R_PPC64_REL16_HI: | |
| 14845 | case R_PPC64_REL16_HA: | |
| a680de9a | 14846 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14847 | break; |
| 14848 | ||
| 721956f4 AM |
14849 | case R_PPC64_REL14: |
| 14850 | case R_PPC64_REL14_BRNTAKEN: | |
| 14851 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14852 | case R_PPC64_REL24: |
| 14853 | break; | |
| 14854 | ||
| 411e1bfb AM |
14855 | case R_PPC64_TPREL16: |
| 14856 | case R_PPC64_TPREL16_LO: | |
| 14857 | case R_PPC64_TPREL16_HI: | |
| 14858 | case R_PPC64_TPREL16_HA: | |
| 14859 | case R_PPC64_TPREL16_DS: | |
| 14860 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14861 | case R_PPC64_TPREL16_HIGH: |
| 14862 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14863 | case R_PPC64_TPREL16_HIGHER: |
| 14864 | case R_PPC64_TPREL16_HIGHERA: | |
| 14865 | case R_PPC64_TPREL16_HIGHEST: | |
| 14866 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14867 | if (h != NULL |
| 14868 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14869 | && h->elf.dynindx == -1) | |
| 14870 | { | |
| 14871 | /* Make this relocation against an undefined weak symbol | |
| 14872 | resolve to zero. This is really just a tweak, since | |
| 14873 | code using weak externs ought to check that they are | |
| 14874 | defined before using them. */ | |
| 14875 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14876 | ||
| 95f0d0d2 | 14877 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14878 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14879 | if (insn != 0) | |
| 95f0d0d2 | 14880 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14881 | break; |
| 14882 | } | |
| 989f9879 AM |
14883 | if (htab->elf.tls_sec != NULL) |
| 14884 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
14885 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14886 | libs or with non-local symbols as that will result in | |
| 14887 | DT_TEXTREL being set, but support them anyway. */ | |
| 14888 | goto dodyn; | |
| 411e1bfb AM |
14889 | |
| 14890 | case R_PPC64_DTPREL16: | |
| 14891 | case R_PPC64_DTPREL16_LO: | |
| 14892 | case R_PPC64_DTPREL16_HI: | |
| 14893 | case R_PPC64_DTPREL16_HA: | |
| 14894 | case R_PPC64_DTPREL16_DS: | |
| 14895 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14896 | case R_PPC64_DTPREL16_HIGH: |
| 14897 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14898 | case R_PPC64_DTPREL16_HIGHER: |
| 14899 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14900 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14901 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14902 | if (htab->elf.tls_sec != NULL) |
| 14903 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14904 | break; |
| 14905 | ||
| 45965137 AM |
14906 | case R_PPC64_ADDR64_LOCAL: |
| 14907 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14908 | ? h->elf.other | |
| 14909 | : sym->st_other); | |
| 14910 | break; | |
| 14911 | ||
| e515b051 AM |
14912 | case R_PPC64_DTPMOD64: |
| 14913 | relocation = 1; | |
| 14914 | addend = 0; | |
| 14915 | goto dodyn; | |
| 14916 | ||
| 411e1bfb | 14917 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14918 | if (htab->elf.tls_sec != NULL) |
| 14919 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14920 | goto dodyn; |
| 14921 | ||
| 14922 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14923 | if (htab->elf.tls_sec != NULL) |
| 14924 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14925 | /* Fall through. */ |
| 411e1bfb | 14926 | |
| 65f38f15 AM |
14927 | /* Relocations that may need to be propagated if this is a |
| 14928 | dynamic object. */ | |
| 04c9666a | 14929 | case R_PPC64_REL30: |
| 65f38f15 AM |
14930 | case R_PPC64_REL32: |
| 14931 | case R_PPC64_REL64: | |
| 14932 | case R_PPC64_ADDR14: | |
| 14933 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14934 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14935 | case R_PPC64_ADDR16: | |
| 14936 | case R_PPC64_ADDR16_DS: | |
| 14937 | case R_PPC64_ADDR16_HA: | |
| 14938 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14939 | case R_PPC64_ADDR16_HIGH: |
| 14940 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14941 | case R_PPC64_ADDR16_HIGHER: |
| 14942 | case R_PPC64_ADDR16_HIGHERA: | |
| 14943 | case R_PPC64_ADDR16_HIGHEST: | |
| 14944 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14945 | case R_PPC64_ADDR16_LO: | |
| 14946 | case R_PPC64_ADDR16_LO_DS: | |
| 14947 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14948 | case R_PPC64_ADDR32: |
| 14949 | case R_PPC64_ADDR64: | |
| 14950 | case R_PPC64_UADDR16: | |
| 14951 | case R_PPC64_UADDR32: | |
| 14952 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14953 | dodyn: |
| 5d1634d7 | 14954 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14955 | break; |
| 14956 | ||
| 41bd81ab AM |
14957 | if (NO_OPD_RELOCS && is_opd) |
| 14958 | break; | |
| 14959 | ||
| 8a9e8e72 | 14960 | if (bfd_link_pic (info) |
| b1b07054 AM |
14961 | ? ((h == NULL |
| 14962 | || h->dyn_relocs != NULL) | |
| 14963 | && ((h != NULL && pc_dynrelocs (h)) | |
| 14964 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
14965 | : (h != NULL |
| 14966 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14967 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14968 | { |
| b34976b6 | 14969 | bfd_boolean skip, relocate; |
| 65f38f15 | 14970 | asection *sreloc; |
| 1cf1f670 | 14971 | bfd_vma out_off; |
| 82e66161 | 14972 | long indx = 0; |
| 65f38f15 AM |
14973 | |
| 14974 | /* When generating a dynamic object, these relocations | |
| 14975 | are copied into the output file to be resolved at run | |
| 14976 | time. */ | |
| 14977 | ||
| b34976b6 AM |
14978 | skip = FALSE; |
| 14979 | relocate = FALSE; | |
| 65f38f15 | 14980 | |
| 1cf1f670 AM |
14981 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14982 | input_section, rel->r_offset); | |
| 14983 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14984 | skip = TRUE; |
| 1cf1f670 | 14985 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14986 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14987 | out_off += (input_section->output_section->vma |
| 14988 | + input_section->output_offset); | |
| 14989 | outrel.r_offset = out_off; | |
| 411e1bfb | 14990 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14991 | |
| 1cf1f670 AM |
14992 | /* Optimize unaligned reloc use. */ |
| 14993 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14994 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14995 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14996 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14997 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14998 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14999 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 15000 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 15001 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 15002 | ||
| 65f38f15 | 15003 | if (skip) |
| 0bb2d96a | 15004 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 15005 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
15006 | && !is_opd |
| 15007 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 15008 | { |
| 82e66161 AM |
15009 | indx = h->elf.dynindx; |
| 15010 | BFD_ASSERT (indx != -1); | |
| 15011 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 15012 | } |
| 65f38f15 AM |
15013 | else |
| 15014 | { | |
| 41bd81ab AM |
15015 | /* This symbol is local, or marked to become local, |
| 15016 | or this is an opd section reloc which must point | |
| 15017 | at a local function. */ | |
| 65f38f15 | 15018 | outrel.r_addend += relocation; |
| e86ce104 | 15019 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 15020 | { |
| 3fad3c7c | 15021 | if (is_opd && h != NULL) |
| afbe61cf AM |
15022 | { |
| 15023 | /* Lie about opd entries. This case occurs | |
| 15024 | when building shared libraries and we | |
| 15025 | reference a function in another shared | |
| 3fad3c7c AM |
15026 | lib. The same thing happens for a weak |
| 15027 | definition in an application that's | |
| 15028 | overridden by a strong definition in a | |
| 15029 | shared lib. (I believe this is a generic | |
| 15030 | bug in binutils handling of weak syms.) | |
| 15031 | In these cases we won't use the opd | |
| 1e2f5b6e | 15032 | entry in this lib. */ |
| b34976b6 | 15033 | unresolved_reloc = FALSE; |
| afbe61cf | 15034 | } |
| 25f23106 AM |
15035 | if (!is_opd |
| 15036 | && r_type == R_PPC64_ADDR64 | |
| 15037 | && (h != NULL | |
| 15038 | ? h->elf.type == STT_GNU_IFUNC | |
| 15039 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 15040 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 15041 | else | |
| 15042 | { | |
| 15043 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 15044 | |
| 25f23106 AM |
15045 | /* We need to relocate .opd contents for ld.so. |
| 15046 | Prelink also wants simple and consistent rules | |
| 15047 | for relocs. This make all RELATIVE relocs have | |
| 15048 | *r_offset equal to r_addend. */ | |
| 15049 | relocate = TRUE; | |
| 15050 | } | |
| 65f38f15 AM |
15051 | } |
| 15052 | else | |
| 15053 | { | |
| 25f23106 AM |
15054 | if (h != NULL |
| 15055 | ? h->elf.type == STT_GNU_IFUNC | |
| 15056 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 15057 | { | |
| 25f53a85 | 15058 | info->callbacks->einfo |
| 695344c0 | 15059 | /* xgettext:c-format */ |
| 174d0a74 | 15060 | (_("%H: %s for indirect " |
| bc30df16 | 15061 | "function `%T' unsupported\n"), |
| 25f53a85 | 15062 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
15063 | ppc64_elf_howto_table[r_type]->name, |
| 15064 | sym_name); | |
| 15065 | ret = FALSE; | |
| 15066 | } | |
| cf35638d | 15067 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
15068 | ; |
| 15069 | else if (sec == NULL || sec->owner == NULL) | |
| 15070 | { | |
| 15071 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 15072 | return FALSE; |
| 65f38f15 AM |
15073 | } |
| 15074 | else | |
| 15075 | { | |
| 15076 | asection *osec; | |
| 15077 | ||
| 15078 | osec = sec->output_section; | |
| 15079 | indx = elf_section_data (osec)->dynindx; | |
| 15080 | ||
| 74541ad4 AM |
15081 | if (indx == 0) |
| 15082 | { | |
| 15083 | if ((osec->flags & SEC_READONLY) == 0 | |
| 15084 | && htab->elf.data_index_section != NULL) | |
| 15085 | osec = htab->elf.data_index_section; | |
| 15086 | else | |
| 15087 | osec = htab->elf.text_index_section; | |
| 15088 | indx = elf_section_data (osec)->dynindx; | |
| 15089 | } | |
| 15090 | BFD_ASSERT (indx != 0); | |
| 15091 | ||
| 65f38f15 AM |
15092 | /* We are turning this relocation into one |
| 15093 | against a section symbol, so subtract out | |
| 15094 | the output section's address but not the | |
| 15095 | offset of the input section in the output | |
| 15096 | section. */ | |
| 15097 | outrel.r_addend -= osec->vma; | |
| 15098 | } | |
| 15099 | ||
| 15100 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 15101 | } | |
| 15102 | } | |
| 15103 | ||
| 15104 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
15105 | if (h != NULL |
| 15106 | ? h->elf.type == STT_GNU_IFUNC | |
| 15107 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
15108 | { |
| 15109 | sreloc = htab->elf.irelplt; | |
| 15110 | if (indx == 0) | |
| 15111 | htab->local_ifunc_resolver = 1; | |
| 15112 | else if (is_static_defined (&h->elf)) | |
| 15113 | htab->maybe_local_ifunc_resolver = 1; | |
| 15114 | } | |
| 65f38f15 AM |
15115 | if (sreloc == NULL) |
| 15116 | abort (); | |
| 15117 | ||
| dfbb6ac9 AM |
15118 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 15119 | >= sreloc->size) | |
| 15120 | abort (); | |
| 947216bf AM |
15121 | loc = sreloc->contents; |
| 15122 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
15123 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 15124 | ||
| 15125 | /* If this reloc is against an external symbol, it will | |
| 15126 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
15127 | anything now. However, for the sake of prelink ensure |
| 15128 | that the section contents are a known value. */ | |
| 65f38f15 | 15129 | if (! relocate) |
| 81407a69 AM |
15130 | { |
| 15131 | unresolved_reloc = FALSE; | |
| 15132 | /* The value chosen here is quite arbitrary as ld.so | |
| 15133 | ignores section contents except for the special | |
| 15134 | case of .opd where the contents might be accessed | |
| 15135 | before relocation. Choose zero, as that won't | |
| 15136 | cause reloc overflow. */ | |
| 15137 | relocation = 0; | |
| 15138 | addend = 0; | |
| 15139 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 15140 | to improve backward compatibility with older | |
| 15141 | versions of ld. */ | |
| 15142 | if (r_type == R_PPC64_ADDR64) | |
| 15143 | addend = outrel.r_addend; | |
| 15144 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 15145 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 15146 | addend = outrel.r_offset; |
| 81407a69 | 15147 | } |
| 65f38f15 | 15148 | } |
| 5bd4f169 AM |
15149 | break; |
| 15150 | ||
| 65f38f15 AM |
15151 | case R_PPC64_COPY: |
| 15152 | case R_PPC64_GLOB_DAT: | |
| 15153 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15154 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15155 | case R_PPC64_RELATIVE: |
| 15156 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15157 | files. */ | |
| ae9a127f | 15158 | /* Fall through. */ |
| 65f38f15 AM |
15159 | |
| 15160 | case R_PPC64_PLTGOT16: | |
| 15161 | case R_PPC64_PLTGOT16_DS: | |
| 15162 | case R_PPC64_PLTGOT16_HA: | |
| 15163 | case R_PPC64_PLTGOT16_HI: | |
| 15164 | case R_PPC64_PLTGOT16_LO: | |
| 15165 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15166 | case R_PPC64_PLTREL32: | |
| 15167 | case R_PPC64_PLTREL64: | |
| 15168 | /* These ones haven't been implemented yet. */ | |
| 15169 | ||
| 25f53a85 | 15170 | info->callbacks->einfo |
| 695344c0 | 15171 | /* xgettext:c-format */ |
| bc30df16 | 15172 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 15173 | input_bfd, |
| 4ce794b7 | 15174 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15175 | |
| 15176 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15177 | ret = FALSE; |
| c316a17c | 15178 | goto copy_reloc; |
| 65f38f15 | 15179 | } |
| 5bd4f169 | 15180 | |
| 67f0cbdb AM |
15181 | /* Multi-instruction sequences that access the TOC can be |
| 15182 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 15183 | to nop; addi rb,r2,x; */ | |
| 15184 | switch (r_type) | |
| 15185 | { | |
| 15186 | default: | |
| 15187 | break; | |
| 15188 | ||
| 15189 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15190 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15191 | case R_PPC64_GOT_TPREL16_HI: | |
| 15192 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15193 | case R_PPC64_GOT16_HI: | |
| 15194 | case R_PPC64_TOC16_HI: | |
| 15195 | /* These relocs would only be useful if building up an | |
| 15196 | offset to later add to r2, perhaps in an indexed | |
| 15197 | addressing mode instruction. Don't try to optimize. | |
| 15198 | Unfortunately, the possibility of someone building up an | |
| 15199 | offset like this or even with the HA relocs, means that | |
| 15200 | we need to check the high insn when optimizing the low | |
| 15201 | insn. */ | |
| 15202 | break; | |
| 15203 | ||
| 15204 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15205 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15206 | case R_PPC64_GOT_TPREL16_HA: | |
| 15207 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15208 | case R_PPC64_GOT16_HA: | |
| 15209 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15210 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15211 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15212 | { |
| 15213 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15214 | bfd_put_32 (input_bfd, NOP, p); | |
| 15215 | } | |
| 67f0cbdb AM |
15216 | break; |
| 15217 | ||
| 15218 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15219 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15220 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15221 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15222 | case R_PPC64_GOT16_LO: | |
| 15223 | case R_PPC64_GOT16_LO_DS: | |
| 15224 | case R_PPC64_TOC16_LO: | |
| 15225 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15226 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15227 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15228 | { |
| 15229 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15230 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15231 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15232 | { | |
| 15233 | /* Transform addic to addi when we change reg. */ | |
| 15234 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15235 | insn |= (14u << 26) | (2 << 16); | |
| 15236 | } | |
| 15237 | else | |
| 67f0cbdb | 15238 | { |
| 98528052 AM |
15239 | insn &= ~(0x1f << 16); |
| 15240 | insn |= 2 << 16; | |
| 67f0cbdb | 15241 | } |
| 560c8763 | 15242 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15243 | } |
| 15244 | break; | |
| 15245 | } | |
| 15246 | ||
| 65f38f15 | 15247 | /* Do any further special processing. */ |
| b80eed39 | 15248 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
15249 | switch (r_type) |
| 15250 | { | |
| 15251 | default: | |
| 15252 | break; | |
| 15253 | ||
| 25f23106 | 15254 | case R_PPC64_REL16_HA: |
| a680de9a | 15255 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15256 | case R_PPC64_ADDR16_HA: |
| 15257 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15258 | case R_PPC64_ADDR16_HIGHERA: |
| 15259 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15260 | case R_PPC64_TOC16_HA: |
| 15261 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15262 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15263 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15264 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15265 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15266 | case R_PPC64_DTPREL16_HA: |
| 15267 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15268 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15269 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15270 | /* It's just possible that this symbol is a weak symbol |
| 15271 | that's not actually defined anywhere. In that case, | |
| 15272 | 'sec' would be NULL, and we should leave the symbol | |
| 15273 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15274 | if (sec == NULL) |
| 15275 | break; | |
| 1a0670f3 | 15276 | /* Fall through. */ |
| 5c5f6e17 AM |
15277 | |
| 15278 | case R_PPC64_GOT16_HA: | |
| 15279 | case R_PPC64_PLTGOT16_HA: | |
| 15280 | case R_PPC64_PLT16_HA: | |
| 15281 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15282 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15283 | case R_PPC64_GOT_TPREL16_HA: | |
| 15284 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15285 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15286 | Bits 0:15 are not used. */ | |
| 15287 | addend += 0x8000; | |
| 65f38f15 AM |
15288 | break; |
| 15289 | ||
| 15290 | case R_PPC64_ADDR16_DS: | |
| 15291 | case R_PPC64_ADDR16_LO_DS: | |
| 15292 | case R_PPC64_GOT16_DS: | |
| 15293 | case R_PPC64_GOT16_LO_DS: | |
| 15294 | case R_PPC64_PLT16_LO_DS: | |
| 15295 | case R_PPC64_SECTOFF_DS: | |
| 15296 | case R_PPC64_SECTOFF_LO_DS: | |
| 15297 | case R_PPC64_TOC16_DS: | |
| 15298 | case R_PPC64_TOC16_LO_DS: | |
| 15299 | case R_PPC64_PLTGOT16_DS: | |
| 15300 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15301 | case R_PPC64_GOT_TPREL16_DS: |
| 15302 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15303 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15304 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15305 | case R_PPC64_TPREL16_DS: | |
| 15306 | case R_PPC64_TPREL16_LO_DS: | |
| 15307 | case R_PPC64_DTPREL16_DS: | |
| 15308 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15309 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15310 | mask = 3; | |
| a680de9a PB |
15311 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15312 | the value must be a multiple of 16. This is somewhat of | |
| 15313 | a hack, but the "correct" way to do this by defining _DQ | |
| 15314 | forms of all the _DS relocs bloats all reloc switches in | |
| 15315 | this file. It doesn't make much sense to use these | |
| 15316 | relocs in data, so testing the insn should be safe. */ | |
| 15317 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15318 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15319 | mask = 15; |
| a680de9a PB |
15320 | relocation += addend; |
| 15321 | addend = insn & (mask ^ 3); | |
| 15322 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15323 | { |
| a680de9a | 15324 | relocation ^= relocation & mask; |
| 25f53a85 | 15325 | info->callbacks->einfo |
| 695344c0 | 15326 | /* xgettext:c-format */ |
| 174d0a74 | 15327 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15328 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15329 | howto->name, |
| adadcc0c | 15330 | mask + 1); |
| 65f38f15 | 15331 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15332 | ret = FALSE; |
| c316a17c | 15333 | goto copy_reloc; |
| 65f38f15 AM |
15334 | } |
| 15335 | break; | |
| 5bd4f169 AM |
15336 | } |
| 15337 | ||
| 239e1f3a AM |
15338 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15339 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15340 | not process them. */ | |
| 65f38f15 | 15341 | if (unresolved_reloc |
| 239e1f3a | 15342 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15343 | && h->elf.def_dynamic) |
| 15344 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15345 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15346 | { |
| 25f53a85 | 15347 | info->callbacks->einfo |
| 695344c0 | 15348 | /* xgettext:c-format */ |
| 174d0a74 | 15349 | (_("%H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15350 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15351 | howto->name, |
| 039b3fef | 15352 | h->elf.root.root.string); |
| b34976b6 | 15353 | ret = FALSE; |
| 9c07fe7c | 15354 | } |
| 5bd4f169 | 15355 | |
| b80eed39 AM |
15356 | /* 16-bit fields in insns mostly have signed values, but a |
| 15357 | few insns have 16-bit unsigned values. Really, we should | |
| 15358 | have different reloc types. */ | |
| 15359 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15360 | && howto->dst_mask == 0xffff | |
| 15361 | && (input_section->flags & SEC_CODE) != 0) | |
| 15362 | { | |
| 15363 | enum complain_overflow complain = complain_overflow_signed; | |
| 15364 | ||
| 15365 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15366 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15367 | complain = complain_overflow_bitfield; | |
| 15368 | else if (howto->rightshift == 0 | |
| 15369 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15370 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15371 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15372 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15373 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15374 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15375 | complain = complain_overflow_unsigned; |
| 15376 | if (howto->complain_on_overflow != complain) | |
| 15377 | { | |
| 15378 | alt_howto = *howto; | |
| 15379 | alt_howto.complain_on_overflow = complain; | |
| 15380 | howto = &alt_howto; | |
| 15381 | } | |
| 15382 | } | |
| 15383 | ||
| a680de9a PB |
15384 | if (r_type == R_PPC64_REL16DX_HA) |
| 15385 | { | |
| 15386 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15387 | if (rel->r_offset + 4 > input_section->size) | |
| 15388 | r = bfd_reloc_outofrange; | |
| 15389 | else | |
| 15390 | { | |
| 15391 | relocation += addend; | |
| 15392 | relocation -= (rel->r_offset | |
| 15393 | + input_section->output_offset | |
| 15394 | + input_section->output_section->vma); | |
| 3de43e7b | 15395 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15396 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15397 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15398 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15399 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15400 | r = bfd_reloc_ok; | |
| 3de43e7b | 15401 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15402 | r = bfd_reloc_overflow; |
| 15403 | } | |
| 15404 | } | |
| 15405 | else | |
| 15406 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15407 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15408 | |
| ef60b7ff | 15409 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15410 | { |
| bc30df16 | 15411 | char *more_info = NULL; |
| b80eed39 | 15412 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15413 | |
| 15414 | if (reloc_dest != DEST_NORMAL) | |
| 15415 | { | |
| 15416 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15417 | if (more_info != NULL) | |
| 15418 | { | |
| 15419 | strcpy (more_info, reloc_name); | |
| 15420 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15421 | ? " (OPD)" : " (stub)")); | |
| 15422 | reloc_name = more_info; | |
| 15423 | } | |
| 15424 | } | |
| 15425 | ||
| cd27b276 | 15426 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15427 | { |
| 8131c122 AM |
15428 | /* On code like "if (foo) foo();" don't report overflow |
| 15429 | on a branch to zero when foo is undefined. */ | |
| 15430 | if (!warned | |
| 15431 | && (reloc_dest == DEST_STUB | |
| 15432 | || !(h != NULL | |
| 15433 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15434 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15435 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15436 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15437 | sym_name, reloc_name, | |
| 15438 | orig_rel.r_addend, | |
| 15439 | input_bfd, input_section, | |
| 15440 | rel->r_offset); | |
| ef60b7ff AM |
15441 | } |
| 15442 | else | |
| 15443 | { | |
| 25f53a85 | 15444 | info->callbacks->einfo |
| 695344c0 | 15445 | /* xgettext:c-format */ |
| 174d0a74 | 15446 | (_("%H: %s against `%T': error %d\n"), |
| 25f53a85 | 15447 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15448 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15449 | ret = FALSE; |
| ef60b7ff | 15450 | } |
| bc30df16 AM |
15451 | if (more_info != NULL) |
| 15452 | free (more_info); | |
| 5bd4f169 | 15453 | } |
| c316a17c AM |
15454 | copy_reloc: |
| 15455 | if (wrel != rel) | |
| 15456 | *wrel = *rel; | |
| 15457 | } | |
| 15458 | ||
| 15459 | if (wrel != rel) | |
| 15460 | { | |
| 15461 | Elf_Internal_Shdr *rel_hdr; | |
| 15462 | size_t deleted = rel - wrel; | |
| 15463 | ||
| 15464 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15465 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15466 | if (rel_hdr->sh_size == 0) | |
| 15467 | { | |
| 15468 | /* It is too late to remove an empty reloc section. Leave | |
| 15469 | one NONE reloc. | |
| 15470 | ??? What is wrong with an empty section??? */ | |
| 15471 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15472 | deleted -= 1; | |
| 15473 | } | |
| 15474 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15475 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15476 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15477 | } |
| 15478 | ||
| 645ea6a9 AM |
15479 | /* If we're emitting relocations, then shortly after this function |
| 15480 | returns, reloc offsets and addends for this section will be | |
| 15481 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15482 | file rather than the input. Save a copy of the relocs for |
| 15483 | opd_entry_value. */ | |
| 0e1862bb | 15484 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15485 | { |
| 15486 | bfd_size_type amt; | |
| 15487 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15488 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15489 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15490 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15491 | if (rel == NULL) |
| 15492 | return FALSE; | |
| 15493 | memcpy (rel, relocs, amt); | |
| 15494 | } | |
| 5bd4f169 AM |
15495 | return ret; |
| 15496 | } | |
| 15497 | ||
| 754021d0 AM |
15498 | /* Adjust the value of any local symbols in opd sections. */ |
| 15499 | ||
| 6e0b88f1 | 15500 | static int |
| 754021d0 AM |
15501 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15502 | const char *name ATTRIBUTE_UNUSED, | |
| 15503 | Elf_Internal_Sym *elfsym, | |
| 15504 | asection *input_sec, | |
| 15505 | struct elf_link_hash_entry *h) | |
| 15506 | { | |
| 74f0fb50 AM |
15507 | struct _opd_sec_data *opd; |
| 15508 | long adjust; | |
| 754021d0 AM |
15509 | bfd_vma value; |
| 15510 | ||
| 4025353c | 15511 | if (h != NULL) |
| 6e0b88f1 | 15512 | return 1; |
| 4025353c | 15513 | |
| 74f0fb50 AM |
15514 | opd = get_opd_info (input_sec); |
| 15515 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15516 | return 1; |
| 754021d0 AM |
15517 | |
| 15518 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15519 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15520 | value -= input_sec->output_section->vma; |
| 15521 | ||
| 51aecdc5 | 15522 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15523 | if (adjust == -1) |
| 6e0b88f1 AM |
15524 | return 2; |
| 15525 | ||
| 15526 | elfsym->st_value += adjust; | |
| 15527 | return 1; | |
| 754021d0 AM |
15528 | } |
| 15529 | ||
| 5bd4f169 AM |
15530 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15531 | dynamic sections here. */ | |
| 15532 | ||
| b34976b6 | 15533 | static bfd_boolean |
| 4ce794b7 AM |
15534 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15535 | struct bfd_link_info *info, | |
| 15536 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 15537 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 15538 | { |
| 65f38f15 | 15539 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15540 | struct plt_entry *ent; |
| 15541 | Elf_Internal_Rela rela; | |
| 15542 | bfd_byte *loc; | |
| 5bd4f169 | 15543 | |
| 65f38f15 | 15544 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15545 | if (htab == NULL) |
| 15546 | return FALSE; | |
| 5bd4f169 | 15547 | |
| 8387904d AM |
15548 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15549 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15550 | { | |
| 15551 | /* This symbol has an entry in the procedure linkage | |
| 15552 | table. Set it up. */ | |
| e054468f AM |
15553 | if (!htab->elf.dynamic_sections_created |
| 15554 | || h->dynindx == -1) | |
| 15555 | { | |
| 15556 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15557 | && h->def_regular | |
| 15558 | && (h->root.type == bfd_link_hash_defined | |
| 15559 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15560 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15561 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15562 | + ent->plt.offset); |
| ee67d69a AM |
15563 | if (htab->opd_abi) |
| 15564 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15565 | else | |
| 15566 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15567 | rela.r_addend = (h->root.u.def.value |
| 15568 | + h->root.u.def.section->output_offset | |
| 15569 | + h->root.u.def.section->output_section->vma | |
| 15570 | + ent->addend); | |
| 33e44f2e AM |
15571 | loc = (htab->elf.irelplt->contents |
| 15572 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15573 | * sizeof (Elf64_External_Rela))); |
| 82e66161 | 15574 | htab->local_ifunc_resolver = 1; |
| e054468f AM |
15575 | } |
| 15576 | else | |
| 15577 | { | |
| 33e44f2e AM |
15578 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15579 | + htab->elf.splt->output_offset | |
| 25f23106 | 15580 | + ent->plt.offset); |
| e054468f AM |
15581 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15582 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15583 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15584 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15585 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 82e66161 AM |
15586 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) |
| 15587 | htab->maybe_local_ifunc_resolver = 1; | |
| e054468f | 15588 | } |
| 8387904d | 15589 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15590 | |
| 15591 | if (!htab->opd_abi) | |
| 15592 | { | |
| 15593 | if (!h->def_regular) | |
| 15594 | { | |
| 15595 | /* Mark the symbol as undefined, rather than as | |
| 15596 | defined in glink. Leave the value if there were | |
| 15597 | any relocations where pointer equality matters | |
| 15598 | (this is a clue for the dynamic linker, to make | |
| 15599 | function pointer comparisons work between an | |
| 15600 | application and shared library), otherwise set it | |
| 15601 | to zero. */ | |
| 15602 | sym->st_shndx = SHN_UNDEF; | |
| 15603 | if (!h->pointer_equality_needed) | |
| 15604 | sym->st_value = 0; | |
| 15605 | else if (!h->ref_regular_nonweak) | |
| 15606 | { | |
| 15607 | /* This breaks function pointer comparisons, but | |
| 15608 | that is better than breaking tests for a NULL | |
| 15609 | function pointer. */ | |
| 15610 | sym->st_value = 0; | |
| 15611 | } | |
| 15612 | } | |
| 15613 | } | |
| 8387904d | 15614 | } |
| 5bd4f169 | 15615 | |
| f5385ebf | 15616 | if (h->needs_copy) |
| 5bd4f169 | 15617 | { |
| 65f38f15 | 15618 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15619 | asection *srel; |
| 5bd4f169 | 15620 | |
| 65f38f15 AM |
15621 | if (h->dynindx == -1 |
| 15622 | || (h->root.type != bfd_link_hash_defined | |
| 15623 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15624 | || htab->elf.srelbss == NULL |
| 15625 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15626 | abort (); |
| 5bd4f169 AM |
15627 | |
| 15628 | rela.r_offset = (h->root.u.def.value | |
| 15629 | + h->root.u.def.section->output_section->vma | |
| 15630 | + h->root.u.def.section->output_offset); | |
| 15631 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15632 | rela.r_addend = 0; | |
| afbf7e8e | 15633 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
15634 | srel = htab->elf.sreldynrelro; |
| 15635 | else | |
| 15636 | srel = htab->elf.srelbss; | |
| 15637 | loc = srel->contents; | |
| 15638 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15639 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15640 | } |
| 15641 | ||
| b34976b6 | 15642 | return TRUE; |
| 5bd4f169 AM |
15643 | } |
| 15644 | ||
| 65f38f15 AM |
15645 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15646 | dynamic linker, before writing them out. */ | |
| 15647 | ||
| 15648 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15649 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15650 | const asection *rel_sec, | |
| 15651 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15652 | { |
| 04c9666a | 15653 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15654 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15655 | ||
| 33e44f2e | 15656 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15657 | return reloc_class_ifunc; |
| a33d1f77 | 15658 | |
| 4ce794b7 | 15659 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15660 | switch (r_type) |
| 65f38f15 AM |
15661 | { |
| 15662 | case R_PPC64_RELATIVE: | |
| 15663 | return reloc_class_relative; | |
| 15664 | case R_PPC64_JMP_SLOT: | |
| 15665 | return reloc_class_plt; | |
| 15666 | case R_PPC64_COPY: | |
| 15667 | return reloc_class_copy; | |
| 15668 | default: | |
| 15669 | return reloc_class_normal; | |
| 15670 | } | |
| 15671 | } | |
| 15672 | ||
| 5bd4f169 AM |
15673 | /* Finish up the dynamic sections. */ |
| 15674 | ||
| b34976b6 | 15675 | static bfd_boolean |
| 4ce794b7 AM |
15676 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15677 | struct bfd_link_info *info) | |
| 5bd4f169 | 15678 | { |
| 65f38f15 AM |
15679 | struct ppc_link_hash_table *htab; |
| 15680 | bfd *dynobj; | |
| 5bd4f169 | 15681 | asection *sdyn; |
| 5bd4f169 | 15682 | |
| 65f38f15 | 15683 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15684 | if (htab == NULL) |
| 15685 | return FALSE; | |
| 15686 | ||
| 65f38f15 | 15687 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15688 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15689 | |
| 65f38f15 | 15690 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15691 | { |
| 5bd4f169 AM |
15692 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15693 | ||
| 33e44f2e | 15694 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15695 | abort (); |
| 5bd4f169 AM |
15696 | |
| 15697 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15698 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15699 | for (; dyncon < dynconend; dyncon++) |
| 15700 | { | |
| 15701 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15702 | asection *s; |
| 5bd4f169 AM |
15703 | |
| 15704 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15705 | ||
| 15706 | switch (dyn.d_tag) | |
| 15707 | { | |
| 65f38f15 AM |
15708 | default: |
| 15709 | continue; | |
| 5bd4f169 | 15710 | |
| 5d1634d7 | 15711 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15712 | s = htab->glink; |
| 6348e046 | 15713 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15714 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15715 | of glink rather than the first entry point, which is | |
| 15716 | what ld.so needs, and now have a bigger stub to | |
| 15717 | support automatic multiple TOCs. */ | |
| b9e5796b | 15718 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15719 | break; |
| 15720 | ||
| 19397422 AM |
15721 | case DT_PPC64_OPD: |
| 15722 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15723 | if (s == NULL) |
| 15724 | continue; | |
| 15725 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15726 | break; |
| 15727 | ||
| e8910a83 AM |
15728 | case DT_PPC64_OPT: |
| 15729 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15730 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
15731 | if (htab->has_plt_localentry0) |
| 15732 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
15733 | break; |
| 15734 | ||
| 19397422 AM |
15735 | case DT_PPC64_OPDSZ: |
| 15736 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15737 | if (s == NULL) |
| 15738 | continue; | |
| eea6121a | 15739 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15740 | break; |
| 15741 | ||
| 65f38f15 | 15742 | case DT_PLTGOT: |
| 33e44f2e | 15743 | s = htab->elf.splt; |
| 6348e046 | 15744 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15745 | break; |
| 15746 | ||
| 15747 | case DT_JMPREL: | |
| 33e44f2e | 15748 | s = htab->elf.srelplt; |
| 6348e046 | 15749 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15750 | break; |
| 5bd4f169 | 15751 | |
| 65f38f15 | 15752 | case DT_PLTRELSZ: |
| 33e44f2e | 15753 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15754 | break; |
| 82e66161 AM |
15755 | |
| 15756 | case DT_TEXTREL: | |
| 15757 | if (htab->local_ifunc_resolver) | |
| 15758 | info->callbacks->einfo | |
| 15759 | (_("%X%P: text relocations and GNU indirect " | |
| 15760 | "functions will result in a segfault at runtime\n")); | |
| 15761 | else if (htab->maybe_local_ifunc_resolver) | |
| 15762 | info->callbacks->einfo | |
| 15763 | (_("%P: warning: text relocations and GNU indirect " | |
| 15764 | "functions may result in a segfault at runtime\n")); | |
| 15765 | continue; | |
| 5bd4f169 | 15766 | } |
| 5bd4f169 | 15767 | |
| 65f38f15 | 15768 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15769 | } |
| 5bd4f169 AM |
15770 | } |
| 15771 | ||
| 6528b6eb AM |
15772 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 15773 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15774 | { |
| 15775 | /* Fill in the first entry in the global offset table. | |
| 15776 | We use it to hold the link-time TOCbase. */ | |
| 15777 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15778 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15779 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15780 | |
| 15781 | /* Set .got entry size. */ | |
| 33e44f2e | 15782 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15783 | } |
| 15784 | ||
| 6528b6eb AM |
15785 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 15786 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15787 | { |
| 15788 | /* Set .plt entry size. */ | |
| 33e44f2e | 15789 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15790 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15791 | } |
| 15792 | ||
| 84f5d08e AM |
15793 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15794 | brlt ourselves if emitrelocations. */ | |
| 15795 | if (htab->brlt != NULL | |
| 15796 | && htab->brlt->reloc_count != 0 | |
| 15797 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15798 | htab->brlt, | |
| d4730f92 | 15799 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15800 | elf_section_data (htab->brlt)->relocs, |
| 15801 | NULL)) | |
| 15802 | return FALSE; | |
| 15803 | ||
| 176a0d42 AM |
15804 | if (htab->glink != NULL |
| 15805 | && htab->glink->reloc_count != 0 | |
| 15806 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15807 | htab->glink, | |
| d4730f92 | 15808 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15809 | elf_section_data (htab->glink)->relocs, |
| 15810 | NULL)) | |
| 15811 | return FALSE; | |
| 15812 | ||
| 58d180e8 | 15813 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15814 | && htab->glink_eh_frame->size != 0) |
| 15815 | { | |
| 15816 | bfd_vma val; | |
| 15817 | bfd_byte *p; | |
| d4aaa2a0 | 15818 | struct map_stub *group; |
| 2e0ce1c8 | 15819 | size_t align = 4; |
| da44f4e5 | 15820 | |
| 2e0ce1c8 AM |
15821 | p = htab->glink_eh_frame->contents; |
| 15822 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
15823 | |
| 15824 | for (group = htab->group; group != NULL; group = group->next) | |
| 15825 | if (group->stub_sec != NULL) | |
| da44f4e5 | 15826 | { |
| da44f4e5 | 15827 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
15828 | val = (group->stub_sec->output_section->vma |
| 15829 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
15830 | val -= (htab->glink_eh_frame->output_section->vma |
| 15831 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15832 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15833 | if (val + 0x80000000 > 0xffffffff) |
| 15834 | { | |
| 15835 | info->callbacks->einfo | |
| 15836 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 15837 | group->stub_sec->name); |
| da44f4e5 AM |
15838 | return FALSE; |
| 15839 | } | |
| d4aaa2a0 AM |
15840 | bfd_put_32 (dynobj, val, p + 8); |
| 15841 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
15842 | } |
| 15843 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15844 | { | |
| da44f4e5 AM |
15845 | /* Offset to .glink. */ |
| 15846 | val = (htab->glink->output_section->vma | |
| 15847 | + htab->glink->output_offset | |
| 15848 | + 8); | |
| 15849 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15850 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15851 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15852 | if (val + 0x80000000 > 0xffffffff) |
| 15853 | { | |
| 15854 | info->callbacks->einfo | |
| 15855 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15856 | htab->glink->name); | |
| 15857 | return FALSE; | |
| 15858 | } | |
| d4aaa2a0 AM |
15859 | bfd_put_32 (dynobj, val, p + 8); |
| 15860 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
15861 | } |
| 15862 | ||
| 15863 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15864 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15865 | htab->glink_eh_frame, | |
| 15866 | htab->glink_eh_frame->contents)) | |
| 15867 | return FALSE; | |
| 15868 | } | |
| 58d180e8 | 15869 | |
| e717da7e | 15870 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15871 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15872 | bfd. */ | |
| c72f2fb2 | 15873 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15874 | { |
| 15875 | asection *s; | |
| 7b53ace3 | 15876 | |
| 0c8d6e5c | 15877 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15878 | continue; |
| 15879 | ||
| e717da7e AM |
15880 | s = ppc64_elf_tdata (dynobj)->got; |
| 15881 | if (s != NULL | |
| eea6121a | 15882 | && s->size != 0 |
| e717da7e AM |
15883 | && s->output_section != bfd_abs_section_ptr |
| 15884 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15885 | s->contents, s->output_offset, | |
| eea6121a | 15886 | s->size)) |
| e717da7e AM |
15887 | return FALSE; |
| 15888 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15889 | if (s != NULL | |
| eea6121a | 15890 | && s->size != 0 |
| e717da7e AM |
15891 | && s->output_section != bfd_abs_section_ptr |
| 15892 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15893 | s->contents, s->output_offset, | |
| eea6121a | 15894 | s->size)) |
| e717da7e AM |
15895 | return FALSE; |
| 15896 | } | |
| f6c52c13 | 15897 | |
| b34976b6 | 15898 | return TRUE; |
| 5bd4f169 AM |
15899 | } |
| 15900 | ||
| 5bd4f169 | 15901 | #include "elf64-target.h" |
| 7b8e7dad AM |
15902 | |
| 15903 | /* FreeBSD support */ | |
| 15904 | ||
| 15905 | #undef TARGET_LITTLE_SYM | |
| 15906 | #undef TARGET_LITTLE_NAME | |
| 15907 | ||
| 15908 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15909 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15910 | #undef TARGET_BIG_NAME |
| 15911 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15912 | ||
| 15913 | #undef ELF_OSABI | |
| 15914 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15915 | ||
| 15916 | #undef elf64_bed | |
| 15917 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15918 | ||
| 15919 | #include "elf64-target.h" |