projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 6f2750fe | 2 | Copyright (C) 1999-2016 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 |
| ad8e1ba5 AM |
75 | #define elf_backend_can_gc_sections 1 |
| 76 | #define elf_backend_can_refcount 1 | |
| 77 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 78 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 79 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 80 | |
| e717da7e | 81 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 82 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 83 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
84 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 85 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
86 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 87 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 88 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 89 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| 8c5b4e52 | 90 | #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections |
| ad8e1ba5 AM |
91 | |
| 92 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
93 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 94 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 95 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| ad8e1ba5 AM |
96 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
| 97 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
| 555cd476 | 98 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 99 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 100 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 101 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 102 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| 74f0fb50 | 103 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 104 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 AM |
105 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| 106 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
| 107 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
| 108 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 109 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
110 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 111 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 112 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 113 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 114 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
115 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 116 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 117 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 118 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 119 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 120 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 121 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| 8c5b4e52 | 122 | #define elf_backend_merge_symbol ppc64_elf_merge_symbol |
| ad8e1ba5 | 123 | |
| 5bd4f169 AM |
124 | /* The name of the dynamic interpreter. This is put in the .interp |
| 125 | section. */ | |
| 126 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 127 | ||
| 128 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 129 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
130 | |
| 131 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 132 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 133 | |
| a078d95a AM |
134 | /* Offsets to some stack save slots. */ |
| 135 | #define STK_LR 16 | |
| 136 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 137 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
138 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 139 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 140 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 141 | ||
| 5bd4f169 | 142 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 143 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
144 | /* TOC base alignment. */ |
| 145 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
146 | |
| 147 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 148 | #define TP_OFFSET 0x7000 | |
| 149 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 150 | |
| ad8e1ba5 AM |
151 | /* .plt call stub instructions. The normal stub is like this, but |
| 152 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 153 | insert an addi to adjust r11. */ |
| a078d95a | 154 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
155 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 156 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 157 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 158 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 159 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
160 | #define BCTR 0x4e800420 /* bctr */ |
| 161 | ||
| 71a39c98 | 162 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
163 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 164 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 165 | ||
| 71a39c98 AM |
166 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 167 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 168 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
169 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 170 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 171 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 172 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 173 | ||
| 71a39c98 | 174 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
175 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 176 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 177 | ||
| a078d95a | 178 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 006589cf AM |
179 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ |
| 180 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 181 | |
| 006589cf AM |
182 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 183 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ | |
| 184 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d AM |
185 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 186 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 187 | ||
| ee4bf8d2 | 188 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 189 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
190 | /* 0: */ |
| 191 | /* .quad plt0-1f */ | |
| 192 | /* __glink: */ | |
| 193 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 194 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 195 | /* 1: */ | |
| 196 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 197 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 198 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
199 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 200 | /* ld %12,0(%11) */ | |
| 201 | /* ld %2,8(%11) */ | |
| 202 | /* mtctr %12 */ | |
| 203 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 204 | /* bctr */ |
| b9e5796b AM |
205 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 206 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 207 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 208 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 209 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
210 | |
| 211 | /* Pad with this. */ | |
| 212 | #define NOP 0x60000000 | |
| 213 | ||
| 721956f4 AM |
214 | /* Some other nops. */ |
| 215 | #define CROR_151515 0x4def7b82 | |
| 216 | #define CROR_313131 0x4ffffb82 | |
| 217 | ||
| cedb70c5 | 218 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
219 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 220 | #define B_DOT 0x48000000 /* b . */ | |
| 221 | ||
| 222 | /* After that, we need two instructions to load the index, followed by | |
| 223 | a branch. */ | |
| 224 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 225 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 226 | |
| deb0e272 AM |
227 | /* Instructions used by the save and restore reg functions. */ |
| 228 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 229 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 230 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 231 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
232 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 233 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
234 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 235 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 236 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 237 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
238 | #define BLR 0x4e800020 /* blr */ |
| 239 | ||
| 41bd81ab AM |
240 | /* Since .opd is an array of descriptors and each entry will end up |
| 241 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 242 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 243 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
244 | #ifndef NO_OPD_RELOCS |
| 245 | #define NO_OPD_RELOCS 0 | |
| 246 | #endif | |
| 810d4e75 | 247 | |
| a4b6fadd AM |
248 | #ifndef ARRAY_SIZE |
| 249 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 250 | #endif | |
| 251 | ||
| 810d4e75 AM |
252 | static inline int |
| 253 | abiversion (bfd *abfd) | |
| 254 | { | |
| 255 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 256 | } | |
| 257 | ||
| 258 | static inline void | |
| 259 | set_abiversion (bfd *abfd, int ver) | |
| 260 | { | |
| 261 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 262 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 263 | } | |
| 5bd4f169 | 264 | \f |
| f5e87a1d | 265 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 266 | |
| 5bd4f169 | 267 | /* Relocation HOWTO's. */ |
| 04c9666a | 268 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
269 | |
| 270 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 271 | /* This reloc does nothing. */ | |
| 272 | HOWTO (R_PPC64_NONE, /* type */ | |
| 273 | 0, /* rightshift */ | |
| 6346d5ca AM |
274 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 275 | 0, /* bitsize */ | |
| b34976b6 | 276 | FALSE, /* pc_relative */ |
| 5bd4f169 | 277 | 0, /* bitpos */ |
| f5e87a1d | 278 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
279 | bfd_elf_generic_reloc, /* special_function */ |
| 280 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 281 | FALSE, /* partial_inplace */ |
| d006db6c | 282 | 0, /* src_mask */ |
| 5bd4f169 | 283 | 0, /* dst_mask */ |
| b34976b6 | 284 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
285 | |
| 286 | /* A standard 32 bit relocation. */ | |
| 287 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 288 | 0, /* rightshift */ | |
| 289 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 290 | 32, /* bitsize */ | |
| b34976b6 | 291 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
292 | 0, /* bitpos */ |
| 293 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 294 | bfd_elf_generic_reloc, /* special_function */ | |
| 295 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 296 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
297 | 0, /* src_mask */ |
| 298 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 299 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
300 | |
| 301 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 302 | FIXME: we don't check that, we just clear them. */ | |
| 303 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 304 | 0, /* rightshift */ | |
| 305 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 306 | 26, /* bitsize */ | |
| b34976b6 | 307 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
308 | 0, /* bitpos */ |
| 309 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 310 | bfd_elf_generic_reloc, /* special_function */ | |
| 311 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 312 | FALSE, /* partial_inplace */ |
| d006db6c | 313 | 0, /* src_mask */ |
| f5e87a1d | 314 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 315 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
316 | |
| 317 | /* A standard 16 bit relocation. */ | |
| 318 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 319 | 0, /* rightshift */ | |
| 320 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 321 | 16, /* bitsize */ | |
| b34976b6 | 322 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
323 | 0, /* bitpos */ |
| 324 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 325 | bfd_elf_generic_reloc, /* special_function */ | |
| 326 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 327 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
328 | 0, /* src_mask */ |
| 329 | 0xffff, /* dst_mask */ | |
| b34976b6 | 330 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
331 | |
| 332 | /* A 16 bit relocation without overflow. */ | |
| 333 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 334 | 0, /* rightshift */ | |
| 335 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 336 | 16, /* bitsize */ | |
| b34976b6 | 337 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
338 | 0, /* bitpos */ |
| 339 | complain_overflow_dont,/* complain_on_overflow */ | |
| 340 | bfd_elf_generic_reloc, /* special_function */ | |
| 341 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 342 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
343 | 0, /* src_mask */ |
| 344 | 0xffff, /* dst_mask */ | |
| b34976b6 | 345 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
346 | |
| 347 | /* Bits 16-31 of an address. */ | |
| 348 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 349 | 16, /* rightshift */ | |
| 350 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 351 | 16, /* bitsize */ | |
| b34976b6 | 352 | FALSE, /* pc_relative */ |
| 5bd4f169 | 353 | 0, /* bitpos */ |
| f9c6b907 | 354 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
355 | bfd_elf_generic_reloc, /* special_function */ |
| 356 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 357 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
358 | 0, /* src_mask */ |
| 359 | 0xffff, /* dst_mask */ | |
| b34976b6 | 360 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
361 | |
| 362 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 363 | bits, treated as a signed number, is negative. */ | |
| 364 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 365 | 16, /* rightshift */ | |
| 366 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 367 | 16, /* bitsize */ | |
| b34976b6 | 368 | FALSE, /* pc_relative */ |
| 5bd4f169 | 369 | 0, /* bitpos */ |
| f9c6b907 | 370 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 371 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 372 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 373 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
374 | 0, /* src_mask */ |
| 375 | 0xffff, /* dst_mask */ | |
| b34976b6 | 376 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
377 | |
| 378 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 379 | FIXME: we don't check that, we just clear them. */ | |
| 380 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 381 | 0, /* rightshift */ | |
| 382 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 383 | 16, /* bitsize */ | |
| b34976b6 | 384 | FALSE, /* pc_relative */ |
| 5bd4f169 | 385 | 0, /* bitpos */ |
| b80eed39 | 386 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 387 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 388 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 389 | FALSE, /* partial_inplace */ |
| d006db6c | 390 | 0, /* src_mask */ |
| f5e87a1d | 391 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 392 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
393 | |
| 394 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 395 | indicate that the branch is expected to be taken. The lower two | |
| 396 | bits must be zero. */ | |
| 397 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 398 | 0, /* rightshift */ | |
| 399 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 400 | 16, /* bitsize */ | |
| b34976b6 | 401 | FALSE, /* pc_relative */ |
| 5bd4f169 | 402 | 0, /* bitpos */ |
| b80eed39 | 403 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 404 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 405 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 406 | FALSE, /* partial_inplace */ |
| d006db6c | 407 | 0, /* src_mask */ |
| f5e87a1d | 408 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 409 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
410 | |
| 411 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 412 | indicate that the branch is not expected to be taken. The lower | |
| 413 | two bits must be zero. */ | |
| 414 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 415 | 0, /* rightshift */ | |
| 416 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 417 | 16, /* bitsize */ | |
| b34976b6 | 418 | FALSE, /* pc_relative */ |
| 5bd4f169 | 419 | 0, /* bitpos */ |
| b80eed39 | 420 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 421 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 422 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 423 | FALSE, /* partial_inplace */ |
| d006db6c | 424 | 0, /* src_mask */ |
| f5e87a1d | 425 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 426 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
427 | |
| 428 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 429 | HOWTO (R_PPC64_REL24, /* type */ | |
| 430 | 0, /* rightshift */ | |
| 431 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 432 | 26, /* bitsize */ | |
| b34976b6 | 433 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
434 | 0, /* bitpos */ |
| 435 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 436 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 437 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 438 | FALSE, /* partial_inplace */ |
| d006db6c | 439 | 0, /* src_mask */ |
| f5e87a1d | 440 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 441 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
442 | |
| 443 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 444 | HOWTO (R_PPC64_REL14, /* type */ | |
| 445 | 0, /* rightshift */ | |
| 446 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 447 | 16, /* bitsize */ | |
| b34976b6 | 448 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
449 | 0, /* bitpos */ |
| 450 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 451 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 452 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 453 | FALSE, /* partial_inplace */ |
| d006db6c | 454 | 0, /* src_mask */ |
| f5e87a1d | 455 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 456 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
457 | |
| 458 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 459 | the branch is expected to be taken. The lower two bits must be | |
| 460 | zero. */ | |
| 461 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 462 | 0, /* rightshift */ | |
| 463 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 464 | 16, /* bitsize */ | |
| b34976b6 | 465 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
466 | 0, /* bitpos */ |
| 467 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 468 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 469 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 470 | FALSE, /* partial_inplace */ |
| d006db6c | 471 | 0, /* src_mask */ |
| f5e87a1d | 472 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 473 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
474 | |
| 475 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 476 | the branch is not expected to be taken. The lower two bits must | |
| 477 | be zero. */ | |
| 478 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 479 | 0, /* rightshift */ | |
| 480 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 481 | 16, /* bitsize */ | |
| b34976b6 | 482 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
483 | 0, /* bitpos */ |
| 484 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 485 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 486 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 487 | FALSE, /* partial_inplace */ |
| d006db6c | 488 | 0, /* src_mask */ |
| f5e87a1d | 489 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 490 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
491 | |
| 492 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 493 | symbol. */ | |
| 494 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 495 | 0, /* rightshift */ | |
| 496 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 497 | 16, /* bitsize */ | |
| b34976b6 | 498 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
499 | 0, /* bitpos */ |
| 500 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 501 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 502 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 503 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
504 | 0, /* src_mask */ |
| 505 | 0xffff, /* dst_mask */ | |
| b34976b6 | 506 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
507 | |
| 508 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 509 | the symbol. */ | |
| 510 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 511 | 0, /* rightshift */ | |
| 512 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 513 | 16, /* bitsize */ | |
| b34976b6 | 514 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
515 | 0, /* bitpos */ |
| 516 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 517 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 518 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 519 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
520 | 0, /* src_mask */ |
| 521 | 0xffff, /* dst_mask */ | |
| b34976b6 | 522 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
523 | |
| 524 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 525 | the symbol. */ | |
| 526 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 527 | 16, /* rightshift */ | |
| 528 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 529 | 16, /* bitsize */ | |
| b34976b6 | 530 | FALSE, /* pc_relative */ |
| 5bd4f169 | 531 | 0, /* bitpos */ |
| f9c6b907 | 532 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 533 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 534 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 535 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
536 | 0, /* src_mask */ |
| 537 | 0xffff, /* dst_mask */ | |
| b34976b6 | 538 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
539 | |
| 540 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 541 | the symbol. */ | |
| 542 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 543 | 16, /* rightshift */ | |
| 544 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 545 | 16, /* bitsize */ | |
| b34976b6 | 546 | FALSE, /* pc_relative */ |
| 5bd4f169 | 547 | 0, /* bitpos */ |
| f9c6b907 | 548 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 549 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 550 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 551 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
552 | 0, /* src_mask */ |
| 553 | 0xffff, /* dst_mask */ | |
| b34976b6 | 554 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
555 | |
| 556 | /* This is used only by the dynamic linker. The symbol should exist | |
| 557 | both in the object being run and in some shared library. The | |
| 558 | dynamic linker copies the data addressed by the symbol from the | |
| 559 | shared library into the object, because the object being | |
| 560 | run has to have the data at some particular address. */ | |
| 561 | HOWTO (R_PPC64_COPY, /* type */ | |
| 562 | 0, /* rightshift */ | |
| f5e87a1d AM |
563 | 0, /* this one is variable size */ |
| 564 | 0, /* bitsize */ | |
| b34976b6 | 565 | FALSE, /* pc_relative */ |
| 5bd4f169 | 566 | 0, /* bitpos */ |
| f5e87a1d AM |
567 | complain_overflow_dont, /* complain_on_overflow */ |
| 568 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 569 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 570 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
571 | 0, /* src_mask */ |
| 572 | 0, /* dst_mask */ | |
| b34976b6 | 573 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
574 | |
| 575 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 576 | entries. */ | |
| 577 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 578 | 0, /* rightshift */ | |
| 579 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 580 | 64, /* bitsize */ | |
| b34976b6 | 581 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
582 | 0, /* bitpos */ |
| 583 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 584 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 585 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 586 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 587 | 0, /* src_mask */ |
| f5e87a1d | 588 | ONES (64), /* dst_mask */ |
| b34976b6 | 589 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
590 | |
| 591 | /* Created by the link editor. Marks a procedure linkage table | |
| 592 | entry for a symbol. */ | |
| 593 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 594 | 0, /* rightshift */ | |
| 595 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 596 | 0, /* bitsize */ | |
| b34976b6 | 597 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
598 | 0, /* bitpos */ |
| 599 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 600 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 601 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 602 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
603 | 0, /* src_mask */ |
| 604 | 0, /* dst_mask */ | |
| b34976b6 | 605 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
606 | |
| 607 | /* Used only by the dynamic linker. When the object is run, this | |
| 608 | doubleword64 is set to the load address of the object, plus the | |
| 609 | addend. */ | |
| 610 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 611 | 0, /* rightshift */ | |
| 612 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 613 | 64, /* bitsize */ | |
| b34976b6 | 614 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
615 | 0, /* bitpos */ |
| 616 | complain_overflow_dont, /* complain_on_overflow */ | |
| 617 | bfd_elf_generic_reloc, /* special_function */ | |
| 618 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 619 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 620 | 0, /* src_mask */ |
| f5e87a1d | 621 | ONES (64), /* dst_mask */ |
| b34976b6 | 622 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
623 | |
| 624 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 625 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 626 | 0, /* rightshift */ | |
| 627 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 628 | 32, /* bitsize */ | |
| b34976b6 | 629 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
630 | 0, /* bitpos */ |
| 631 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 632 | bfd_elf_generic_reloc, /* special_function */ | |
| 633 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 634 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
635 | 0, /* src_mask */ |
| 636 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 637 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
638 | |
| 639 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 640 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 641 | 0, /* rightshift */ | |
| 642 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 643 | 16, /* bitsize */ | |
| b34976b6 | 644 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
645 | 0, /* bitpos */ |
| 646 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 647 | bfd_elf_generic_reloc, /* special_function */ | |
| 648 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 649 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
650 | 0, /* src_mask */ |
| 651 | 0xffff, /* dst_mask */ | |
| b34976b6 | 652 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
653 | |
| 654 | /* 32-bit PC relative. */ | |
| 655 | HOWTO (R_PPC64_REL32, /* type */ | |
| 656 | 0, /* rightshift */ | |
| 657 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 658 | 32, /* bitsize */ | |
| b34976b6 | 659 | TRUE, /* pc_relative */ |
| 5bd4f169 | 660 | 0, /* bitpos */ |
| 5bd4f169 AM |
661 | complain_overflow_signed, /* complain_on_overflow */ |
| 662 | bfd_elf_generic_reloc, /* special_function */ | |
| 663 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 664 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
665 | 0, /* src_mask */ |
| 666 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 667 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 668 | |
| 10ed1bba | 669 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
670 | HOWTO (R_PPC64_PLT32, /* type */ |
| 671 | 0, /* rightshift */ | |
| 672 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 673 | 32, /* bitsize */ | |
| b34976b6 | 674 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
675 | 0, /* bitpos */ |
| 676 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 677 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 678 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 679 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 680 | 0, /* src_mask */ |
| f5e87a1d | 681 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 682 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
683 | |
| 684 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 685 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 686 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 687 | 0, /* rightshift */ | |
| 688 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 689 | 32, /* bitsize */ | |
| b34976b6 | 690 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
691 | 0, /* bitpos */ |
| 692 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 693 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 694 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 695 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 696 | 0, /* src_mask */ |
| f5e87a1d | 697 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 698 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
699 | |
| 700 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 701 | the symbol. */ | |
| 702 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 703 | 0, /* rightshift */ | |
| 704 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 705 | 16, /* bitsize */ | |
| b34976b6 | 706 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
707 | 0, /* bitpos */ |
| 708 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 709 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 710 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 711 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
712 | 0, /* src_mask */ |
| 713 | 0xffff, /* dst_mask */ | |
| b34976b6 | 714 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
715 | |
| 716 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 717 | the symbol. */ | |
| 718 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 719 | 16, /* rightshift */ | |
| 720 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 721 | 16, /* bitsize */ | |
| b34976b6 | 722 | FALSE, /* pc_relative */ |
| 5bd4f169 | 723 | 0, /* bitpos */ |
| f9c6b907 | 724 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 725 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 726 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 727 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
728 | 0, /* src_mask */ |
| 729 | 0xffff, /* dst_mask */ | |
| b34976b6 | 730 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
731 | |
| 732 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 733 | the symbol. */ | |
| 734 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 735 | 16, /* rightshift */ | |
| 736 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 737 | 16, /* bitsize */ | |
| b34976b6 | 738 | FALSE, /* pc_relative */ |
| 5bd4f169 | 739 | 0, /* bitpos */ |
| f9c6b907 | 740 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 741 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 742 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 743 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
744 | 0, /* src_mask */ |
| 745 | 0xffff, /* dst_mask */ | |
| b34976b6 | 746 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 747 | |
| c061c2d8 | 748 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
749 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 750 | 0, /* rightshift */ | |
| c061c2d8 AM |
751 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 752 | 16, /* bitsize */ | |
| b34976b6 | 753 | FALSE, /* pc_relative */ |
| 5bd4f169 | 754 | 0, /* bitpos */ |
| b80eed39 | 755 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 756 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 757 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 758 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 759 | 0, /* src_mask */ |
| c061c2d8 | 760 | 0xffff, /* dst_mask */ |
| b34976b6 | 761 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 762 | |
| c061c2d8 | 763 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
764 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 765 | 0, /* rightshift */ | |
| 766 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 767 | 16, /* bitsize */ | |
| b34976b6 | 768 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
769 | 0, /* bitpos */ |
| 770 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 771 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 772 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 773 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
774 | 0, /* src_mask */ |
| 775 | 0xffff, /* dst_mask */ | |
| b34976b6 | 776 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
777 | |
| 778 | /* 16-bit upper half section relative relocation. */ | |
| 779 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 780 | 16, /* rightshift */ | |
| 781 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 782 | 16, /* bitsize */ | |
| b34976b6 | 783 | FALSE, /* pc_relative */ |
| 5bd4f169 | 784 | 0, /* bitpos */ |
| f9c6b907 | 785 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 786 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 787 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 788 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
789 | 0, /* src_mask */ |
| 790 | 0xffff, /* dst_mask */ | |
| b34976b6 | 791 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
792 | |
| 793 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 794 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 795 | 16, /* rightshift */ | |
| 796 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 797 | 16, /* bitsize */ | |
| b34976b6 | 798 | FALSE, /* pc_relative */ |
| 5bd4f169 | 799 | 0, /* bitpos */ |
| f9c6b907 | 800 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 801 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 802 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 803 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
804 | 0, /* src_mask */ |
| 805 | 0xffff, /* dst_mask */ | |
| b34976b6 | 806 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 807 | |
| 04c9666a AM |
808 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 809 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
810 | 2, /* rightshift */ |
| 811 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 812 | 30, /* bitsize */ | |
| b34976b6 | 813 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
814 | 0, /* bitpos */ |
| 815 | complain_overflow_dont, /* complain_on_overflow */ | |
| 816 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 817 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 818 | FALSE, /* partial_inplace */ |
| d006db6c | 819 | 0, /* src_mask */ |
| 5bd4f169 | 820 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 821 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
822 | |
| 823 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 824 | ||
| 825 | /* A standard 64-bit relocation. */ | |
| 826 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 827 | 0, /* rightshift */ | |
| 828 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 829 | 64, /* bitsize */ | |
| b34976b6 | 830 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
831 | 0, /* bitpos */ |
| 832 | complain_overflow_dont, /* complain_on_overflow */ | |
| 833 | bfd_elf_generic_reloc, /* special_function */ | |
| 834 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 835 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 836 | 0, /* src_mask */ |
| f5e87a1d | 837 | ONES (64), /* dst_mask */ |
| b34976b6 | 838 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
839 | |
| 840 | /* The bits 32-47 of an address. */ | |
| 841 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 842 | 32, /* rightshift */ | |
| 843 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 844 | 16, /* bitsize */ | |
| b34976b6 | 845 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
846 | 0, /* bitpos */ |
| 847 | complain_overflow_dont, /* complain_on_overflow */ | |
| 848 | bfd_elf_generic_reloc, /* special_function */ | |
| 849 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 850 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
851 | 0, /* src_mask */ |
| 852 | 0xffff, /* dst_mask */ | |
| b34976b6 | 853 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
854 | |
| 855 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 856 | 16 bits, treated as a signed number, is negative. */ | |
| 857 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 858 | 32, /* rightshift */ | |
| 859 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 860 | 16, /* bitsize */ | |
| b34976b6 | 861 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
862 | 0, /* bitpos */ |
| 863 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 864 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 865 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 866 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
867 | 0, /* src_mask */ |
| 868 | 0xffff, /* dst_mask */ | |
| b34976b6 | 869 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
870 | |
| 871 | /* The bits 48-63 of an address. */ | |
| 872 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 873 | 48, /* rightshift */ | |
| 874 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 875 | 16, /* bitsize */ | |
| b34976b6 | 876 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
877 | 0, /* bitpos */ |
| 878 | complain_overflow_dont, /* complain_on_overflow */ | |
| 879 | bfd_elf_generic_reloc, /* special_function */ | |
| 880 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 881 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
882 | 0, /* src_mask */ |
| 883 | 0xffff, /* dst_mask */ | |
| b34976b6 | 884 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
885 | |
| 886 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 887 | 16 bits, treated as a signed number, is negative. */ | |
| 888 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 889 | 48, /* rightshift */ | |
| 890 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 891 | 16, /* bitsize */ | |
| b34976b6 | 892 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
893 | 0, /* bitpos */ |
| 894 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 895 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 896 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 897 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
898 | 0, /* src_mask */ |
| 899 | 0xffff, /* dst_mask */ | |
| b34976b6 | 900 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
901 | |
| 902 | /* Like ADDR64, but may be unaligned. */ | |
| 903 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 904 | 0, /* rightshift */ | |
| 905 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 906 | 64, /* bitsize */ | |
| b34976b6 | 907 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
908 | 0, /* bitpos */ |
| 909 | complain_overflow_dont, /* complain_on_overflow */ | |
| 910 | bfd_elf_generic_reloc, /* special_function */ | |
| 911 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 912 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 913 | 0, /* src_mask */ |
| f5e87a1d | 914 | ONES (64), /* dst_mask */ |
| b34976b6 | 915 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
916 | |
| 917 | /* 64-bit relative relocation. */ | |
| 918 | HOWTO (R_PPC64_REL64, /* type */ | |
| 919 | 0, /* rightshift */ | |
| 920 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 921 | 64, /* bitsize */ | |
| b34976b6 | 922 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
923 | 0, /* bitpos */ |
| 924 | complain_overflow_dont, /* complain_on_overflow */ | |
| 925 | bfd_elf_generic_reloc, /* special_function */ | |
| 926 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 927 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 928 | 0, /* src_mask */ |
| f5e87a1d | 929 | ONES (64), /* dst_mask */ |
| b34976b6 | 930 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 931 | |
| cedb70c5 | 932 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
933 | HOWTO (R_PPC64_PLT64, /* type */ |
| 934 | 0, /* rightshift */ | |
| 935 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 936 | 64, /* bitsize */ | |
| b34976b6 | 937 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
938 | 0, /* bitpos */ |
| 939 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 940 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 941 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 942 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 943 | 0, /* src_mask */ |
| f5e87a1d | 944 | ONES (64), /* dst_mask */ |
| b34976b6 | 945 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
946 | |
| 947 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 948 | table. */ | |
| 949 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 950 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 951 | 0, /* rightshift */ | |
| 952 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 953 | 64, /* bitsize */ | |
| b34976b6 | 954 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
955 | 0, /* bitpos */ |
| 956 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 957 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 958 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 959 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 960 | 0, /* src_mask */ |
| f5e87a1d | 961 | ONES (64), /* dst_mask */ |
| b34976b6 | 962 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
963 | |
| 964 | /* 16 bit TOC-relative relocation. */ | |
| 965 | ||
| 966 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 967 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 968 | 0, /* rightshift */ | |
| 969 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 970 | 16, /* bitsize */ | |
| b34976b6 | 971 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
972 | 0, /* bitpos */ |
| 973 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 974 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 975 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 976 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
977 | 0, /* src_mask */ |
| 978 | 0xffff, /* dst_mask */ | |
| b34976b6 | 979 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
980 | |
| 981 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 982 | ||
| 983 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 984 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 985 | 0, /* rightshift */ | |
| 986 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 987 | 16, /* bitsize */ | |
| b34976b6 | 988 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
989 | 0, /* bitpos */ |
| 990 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 991 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 992 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 993 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
994 | 0, /* src_mask */ |
| 995 | 0xffff, /* dst_mask */ | |
| b34976b6 | 996 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
997 | |
| 998 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 999 | ||
| 1000 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1001 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1002 | 16, /* rightshift */ | |
| 1003 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1004 | 16, /* bitsize */ | |
| b34976b6 | 1005 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1006 | 0, /* bitpos */ |
| f9c6b907 | 1007 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1008 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1009 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1010 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1011 | 0, /* src_mask */ |
| 1012 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1013 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1014 | |
| 1015 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1016 | contents of the low 16 bits, treated as a signed number, is | |
| 1017 | negative. */ | |
| 1018 | ||
| 1019 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1020 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1021 | 16, /* rightshift */ | |
| 1022 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1023 | 16, /* bitsize */ | |
| b34976b6 | 1024 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1025 | 0, /* bitpos */ |
| f9c6b907 | 1026 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1027 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1028 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1029 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1030 | 0, /* src_mask */ |
| 1031 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1032 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1033 | |
| 1034 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1035 | ||
| 1036 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1037 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1038 | 0, /* rightshift */ | |
| 1039 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1040 | 64, /* bitsize */ | |
| b34976b6 | 1041 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1042 | 0, /* bitpos */ |
| b80eed39 | 1043 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1044 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1045 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1046 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1047 | 0, /* src_mask */ |
| f5e87a1d | 1048 | ONES (64), /* dst_mask */ |
| b34976b6 | 1049 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1050 | |
| 1051 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1052 | value to relocate may (!) refer to a PLT entry which the link | |
| 1053 | editor (a) may replace with the symbol value. If the link editor | |
| 1054 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1055 | entry and store the address to the new PLT entry in the GOT. | |
| 1056 | This permits lazy resolution of function symbols at run time. | |
| 1057 | The link editor may also skip all of this and just (c) emit a | |
| 1058 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1059 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1060 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1061 | 0, /* rightshift */ | |
| 1062 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1063 | 16, /* bitsize */ | |
| b34976b6 | 1064 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1065 | 0, /* bitpos */ |
| 1066 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1067 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1068 | "R_PPC64_PLTGOT16", /* name */ |
| 1069 | FALSE, /* partial_inplace */ | |
| 1070 | 0, /* src_mask */ | |
| 1071 | 0xffff, /* dst_mask */ | |
| 1072 | FALSE), /* pcrel_offset */ | |
| 1073 | ||
| 1074 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1075 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1076 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1077 | 0, /* rightshift */ | |
| 1078 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1079 | 16, /* bitsize */ | |
| 1080 | FALSE, /* pc_relative */ | |
| 1081 | 0, /* bitpos */ | |
| 1082 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1083 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1084 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1085 | FALSE, /* partial_inplace */ | |
| 1086 | 0, /* src_mask */ | |
| 1087 | 0xffff, /* dst_mask */ | |
| 1088 | FALSE), /* pcrel_offset */ | |
| 1089 | ||
| 1090 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1091 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1092 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1093 | 16, /* rightshift */ | |
| 1094 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1095 | 16, /* bitsize */ | |
| 1096 | FALSE, /* pc_relative */ | |
| 1097 | 0, /* bitpos */ | |
| f9c6b907 | 1098 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1099 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1100 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1101 | FALSE, /* partial_inplace */ | |
| 1102 | 0, /* src_mask */ | |
| 1103 | 0xffff, /* dst_mask */ | |
| 1104 | FALSE), /* pcrel_offset */ | |
| 1105 | ||
| 1106 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1107 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1108 | is negative. */ | |
| 1109 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1110 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1111 | 16, /* rightshift */ | |
| 1112 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1113 | 16, /* bitsize */ | |
| 1114 | FALSE, /* pc_relative */ | |
| 1115 | 0, /* bitpos */ | |
| f9c6b907 | 1116 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1117 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1118 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1119 | FALSE, /* partial_inplace */ | |
| 1120 | 0, /* src_mask */ | |
| 1121 | 0xffff, /* dst_mask */ | |
| 1122 | FALSE), /* pcrel_offset */ | |
| 1123 | ||
| 1124 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1125 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1126 | 0, /* rightshift */ | |
| 1127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1128 | 16, /* bitsize */ | |
| 1129 | FALSE, /* pc_relative */ | |
| 1130 | 0, /* bitpos */ | |
| b80eed39 | 1131 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1132 | bfd_elf_generic_reloc, /* special_function */ |
| 1133 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1134 | FALSE, /* partial_inplace */ | |
| 1135 | 0, /* src_mask */ | |
| 1136 | 0xfffc, /* dst_mask */ | |
| 1137 | FALSE), /* pcrel_offset */ | |
| 1138 | ||
| 1139 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1140 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1141 | 0, /* rightshift */ | |
| 1142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1143 | 16, /* bitsize */ | |
| 1144 | FALSE, /* pc_relative */ | |
| 1145 | 0, /* bitpos */ | |
| 1146 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1147 | bfd_elf_generic_reloc, /* special_function */ | |
| 1148 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1149 | FALSE, /* partial_inplace */ | |
| 1150 | 0, /* src_mask */ | |
| 1151 | 0xfffc, /* dst_mask */ | |
| 1152 | FALSE), /* pcrel_offset */ | |
| 1153 | ||
| 1154 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1155 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1156 | 0, /* rightshift */ | |
| 1157 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1158 | 16, /* bitsize */ | |
| 1159 | FALSE, /* pc_relative */ | |
| 1160 | 0, /* bitpos */ | |
| 1161 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1162 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1163 | "R_PPC64_GOT16_DS", /* name */ | |
| 1164 | FALSE, /* partial_inplace */ | |
| 1165 | 0, /* src_mask */ | |
| 1166 | 0xfffc, /* dst_mask */ | |
| 1167 | FALSE), /* pcrel_offset */ | |
| 1168 | ||
| 1169 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1170 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1171 | 0, /* rightshift */ | |
| 1172 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1173 | 16, /* bitsize */ | |
| 1174 | FALSE, /* pc_relative */ | |
| 1175 | 0, /* bitpos */ | |
| 1176 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1177 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1178 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1179 | FALSE, /* partial_inplace */ | |
| 1180 | 0, /* src_mask */ | |
| 1181 | 0xfffc, /* dst_mask */ | |
| 1182 | FALSE), /* pcrel_offset */ | |
| 1183 | ||
| 1184 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1185 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1186 | 0, /* rightshift */ | |
| 1187 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1188 | 16, /* bitsize */ | |
| 1189 | FALSE, /* pc_relative */ | |
| 1190 | 0, /* bitpos */ | |
| 1191 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1192 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1193 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1194 | FALSE, /* partial_inplace */ | |
| 1195 | 0, /* src_mask */ | |
| 1196 | 0xfffc, /* dst_mask */ | |
| 1197 | FALSE), /* pcrel_offset */ | |
| 1198 | ||
| 1199 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1200 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1201 | 0, /* rightshift */ | |
| 1202 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1203 | 16, /* bitsize */ | |
| 1204 | FALSE, /* pc_relative */ | |
| 1205 | 0, /* bitpos */ | |
| b80eed39 | 1206 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1207 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1208 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1209 | FALSE, /* partial_inplace */ | |
| 1210 | 0, /* src_mask */ | |
| 1211 | 0xfffc, /* dst_mask */ | |
| 1212 | FALSE), /* pcrel_offset */ | |
| 1213 | ||
| 1214 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1215 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1216 | 0, /* rightshift */ | |
| 1217 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1218 | 16, /* bitsize */ | |
| 1219 | FALSE, /* pc_relative */ | |
| 1220 | 0, /* bitpos */ | |
| 1221 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1222 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1223 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1224 | FALSE, /* partial_inplace */ | |
| 1225 | 0, /* src_mask */ | |
| 1226 | 0xfffc, /* dst_mask */ | |
| 1227 | FALSE), /* pcrel_offset */ | |
| 1228 | ||
| 1229 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1230 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1231 | 0, /* rightshift */ | |
| 1232 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1233 | 16, /* bitsize */ | |
| 1234 | FALSE, /* pc_relative */ | |
| 1235 | 0, /* bitpos */ | |
| 1236 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1237 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1238 | "R_PPC64_TOC16_DS", /* name */ | |
| 1239 | FALSE, /* partial_inplace */ | |
| 1240 | 0, /* src_mask */ | |
| 1241 | 0xfffc, /* dst_mask */ | |
| 1242 | FALSE), /* pcrel_offset */ | |
| 1243 | ||
| 1244 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1245 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1246 | 0, /* rightshift */ | |
| 1247 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1248 | 16, /* bitsize */ | |
| 1249 | FALSE, /* pc_relative */ | |
| 1250 | 0, /* bitpos */ | |
| 1251 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1252 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1253 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1254 | FALSE, /* partial_inplace */ | |
| 1255 | 0, /* src_mask */ | |
| 1256 | 0xfffc, /* dst_mask */ | |
| 1257 | FALSE), /* pcrel_offset */ | |
| 1258 | ||
| 1259 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1260 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1261 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1262 | 0, /* rightshift */ |
| 1263 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1264 | 16, /* bitsize */ | |
| 1265 | FALSE, /* pc_relative */ | |
| 1266 | 0, /* bitpos */ | |
| 1267 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1268 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1269 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1270 | FALSE, /* partial_inplace */ | |
| 1271 | 0, /* src_mask */ | |
| 1272 | 0xfffc, /* dst_mask */ | |
| 1273 | FALSE), /* pcrel_offset */ | |
| 1274 | ||
| 1275 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1276 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1277 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1278 | 0, /* rightshift */ | |
| 1279 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1280 | 16, /* bitsize */ | |
| 1281 | FALSE, /* pc_relative */ | |
| 1282 | 0, /* bitpos */ | |
| 1283 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1284 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1285 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1286 | FALSE, /* partial_inplace */ | |
| 1287 | 0, /* src_mask */ | |
| 1288 | 0xfffc, /* dst_mask */ | |
| 1289 | FALSE), /* pcrel_offset */ | |
| 1290 | ||
| 727fc41e | 1291 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1292 | HOWTO (R_PPC64_TLS, |
| 1293 | 0, /* rightshift */ | |
| 1294 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1295 | 32, /* bitsize */ | |
| 1296 | FALSE, /* pc_relative */ | |
| 1297 | 0, /* bitpos */ | |
| 1298 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1299 | bfd_elf_generic_reloc, /* special_function */ | |
| 1300 | "R_PPC64_TLS", /* name */ | |
| 1301 | FALSE, /* partial_inplace */ | |
| 1302 | 0, /* src_mask */ | |
| 1303 | 0, /* dst_mask */ | |
| 1304 | FALSE), /* pcrel_offset */ | |
| 1305 | ||
| 727fc41e AM |
1306 | HOWTO (R_PPC64_TLSGD, |
| 1307 | 0, /* rightshift */ | |
| 1308 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1309 | 32, /* bitsize */ | |
| 1310 | FALSE, /* pc_relative */ | |
| 1311 | 0, /* bitpos */ | |
| 1312 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1313 | bfd_elf_generic_reloc, /* special_function */ | |
| 1314 | "R_PPC64_TLSGD", /* name */ | |
| 1315 | FALSE, /* partial_inplace */ | |
| 1316 | 0, /* src_mask */ | |
| 1317 | 0, /* dst_mask */ | |
| 1318 | FALSE), /* pcrel_offset */ | |
| 1319 | ||
| 1320 | HOWTO (R_PPC64_TLSLD, | |
| 1321 | 0, /* rightshift */ | |
| 1322 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1323 | 32, /* bitsize */ | |
| 1324 | FALSE, /* pc_relative */ | |
| 1325 | 0, /* bitpos */ | |
| 1326 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1327 | bfd_elf_generic_reloc, /* special_function */ | |
| 1328 | "R_PPC64_TLSLD", /* name */ | |
| 1329 | FALSE, /* partial_inplace */ | |
| 1330 | 0, /* src_mask */ | |
| 1331 | 0, /* dst_mask */ | |
| 1332 | FALSE), /* pcrel_offset */ | |
| 1333 | ||
| 3b421ab3 AM |
1334 | HOWTO (R_PPC64_TOCSAVE, |
| 1335 | 0, /* rightshift */ | |
| 1336 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1337 | 32, /* bitsize */ | |
| 1338 | FALSE, /* pc_relative */ | |
| 1339 | 0, /* bitpos */ | |
| 1340 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1341 | bfd_elf_generic_reloc, /* special_function */ | |
| 1342 | "R_PPC64_TOCSAVE", /* name */ | |
| 1343 | FALSE, /* partial_inplace */ | |
| 1344 | 0, /* src_mask */ | |
| 1345 | 0, /* dst_mask */ | |
| 1346 | FALSE), /* pcrel_offset */ | |
| 1347 | ||
| 411e1bfb AM |
1348 | /* Computes the load module index of the load module that contains the |
| 1349 | definition of its TLS sym. */ | |
| 1350 | HOWTO (R_PPC64_DTPMOD64, | |
| 1351 | 0, /* rightshift */ | |
| 1352 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1353 | 64, /* bitsize */ | |
| 1354 | FALSE, /* pc_relative */ | |
| 1355 | 0, /* bitpos */ | |
| 1356 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1357 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1358 | "R_PPC64_DTPMOD64", /* name */ | |
| 1359 | FALSE, /* partial_inplace */ | |
| 1360 | 0, /* src_mask */ | |
| 1361 | ONES (64), /* dst_mask */ | |
| 1362 | FALSE), /* pcrel_offset */ | |
| 1363 | ||
| 1364 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1365 | of sym+add and the base address of the thread-local storage block that | |
| 1366 | contains the definition of sym, minus 0x8000. */ | |
| 1367 | HOWTO (R_PPC64_DTPREL64, | |
| 1368 | 0, /* rightshift */ | |
| 1369 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1370 | 64, /* bitsize */ | |
| 1371 | FALSE, /* pc_relative */ | |
| 1372 | 0, /* bitpos */ | |
| 1373 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1374 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1375 | "R_PPC64_DTPREL64", /* name */ | |
| 1376 | FALSE, /* partial_inplace */ | |
| 1377 | 0, /* src_mask */ | |
| 1378 | ONES (64), /* dst_mask */ | |
| 1379 | FALSE), /* pcrel_offset */ | |
| 1380 | ||
| 1381 | /* A 16 bit dtprel reloc. */ | |
| 1382 | HOWTO (R_PPC64_DTPREL16, | |
| 1383 | 0, /* rightshift */ | |
| 1384 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1385 | 16, /* bitsize */ | |
| 1386 | FALSE, /* pc_relative */ | |
| 1387 | 0, /* bitpos */ | |
| 1388 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1389 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1390 | "R_PPC64_DTPREL16", /* name */ | |
| 1391 | FALSE, /* partial_inplace */ | |
| 1392 | 0, /* src_mask */ | |
| 1393 | 0xffff, /* dst_mask */ | |
| 1394 | FALSE), /* pcrel_offset */ | |
| 1395 | ||
| 1396 | /* Like DTPREL16, but no overflow. */ | |
| 1397 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1398 | 0, /* rightshift */ | |
| 1399 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1400 | 16, /* bitsize */ | |
| 1401 | FALSE, /* pc_relative */ | |
| 1402 | 0, /* bitpos */ | |
| 1403 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1404 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1405 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1406 | FALSE, /* partial_inplace */ | |
| 1407 | 0, /* src_mask */ | |
| 1408 | 0xffff, /* dst_mask */ | |
| 1409 | FALSE), /* pcrel_offset */ | |
| 1410 | ||
| 1411 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1412 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1413 | 16, /* rightshift */ | |
| 1414 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1415 | 16, /* bitsize */ | |
| 1416 | FALSE, /* pc_relative */ | |
| 1417 | 0, /* bitpos */ | |
| f9c6b907 | 1418 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1419 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1420 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1421 | FALSE, /* partial_inplace */ | |
| 1422 | 0, /* src_mask */ | |
| 1423 | 0xffff, /* dst_mask */ | |
| 1424 | FALSE), /* pcrel_offset */ | |
| 1425 | ||
| 1426 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1427 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1428 | 16, /* rightshift */ | |
| 1429 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1430 | 16, /* bitsize */ | |
| 1431 | FALSE, /* pc_relative */ | |
| 1432 | 0, /* bitpos */ | |
| f9c6b907 | 1433 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1434 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1435 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1436 | FALSE, /* partial_inplace */ | |
| 1437 | 0, /* src_mask */ | |
| 1438 | 0xffff, /* dst_mask */ | |
| 1439 | FALSE), /* pcrel_offset */ | |
| 1440 | ||
| 1441 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1442 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1443 | 32, /* rightshift */ | |
| 1444 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1445 | 16, /* bitsize */ | |
| 1446 | FALSE, /* pc_relative */ | |
| 1447 | 0, /* bitpos */ | |
| 1448 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1449 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1450 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1451 | FALSE, /* partial_inplace */ | |
| 1452 | 0, /* src_mask */ | |
| 1453 | 0xffff, /* dst_mask */ | |
| 1454 | FALSE), /* pcrel_offset */ | |
| 1455 | ||
| 1456 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1457 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1458 | 32, /* rightshift */ | |
| 1459 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1460 | 16, /* bitsize */ | |
| 1461 | FALSE, /* pc_relative */ | |
| 1462 | 0, /* bitpos */ | |
| 1463 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1464 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1465 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1466 | FALSE, /* partial_inplace */ | |
| 1467 | 0, /* src_mask */ | |
| 1468 | 0xffff, /* dst_mask */ | |
| 1469 | FALSE), /* pcrel_offset */ | |
| 1470 | ||
| 1471 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1472 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1473 | 48, /* rightshift */ | |
| 1474 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1475 | 16, /* bitsize */ | |
| 1476 | FALSE, /* pc_relative */ | |
| 1477 | 0, /* bitpos */ | |
| 1478 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1479 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1480 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1481 | FALSE, /* partial_inplace */ | |
| 1482 | 0, /* src_mask */ | |
| 1483 | 0xffff, /* dst_mask */ | |
| 1484 | FALSE), /* pcrel_offset */ | |
| 1485 | ||
| 1486 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1487 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1488 | 48, /* rightshift */ | |
| 1489 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1490 | 16, /* bitsize */ | |
| 1491 | FALSE, /* pc_relative */ | |
| 1492 | 0, /* bitpos */ | |
| 1493 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1494 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1495 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1496 | FALSE, /* partial_inplace */ | |
| 1497 | 0, /* src_mask */ | |
| 1498 | 0xffff, /* dst_mask */ | |
| 1499 | FALSE), /* pcrel_offset */ | |
| 1500 | ||
| 1501 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1502 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1503 | 0, /* rightshift */ | |
| 1504 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1505 | 16, /* bitsize */ | |
| 1506 | FALSE, /* pc_relative */ | |
| 1507 | 0, /* bitpos */ | |
| 1508 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1509 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1510 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1511 | FALSE, /* partial_inplace */ | |
| 1512 | 0, /* src_mask */ | |
| 1513 | 0xfffc, /* dst_mask */ | |
| 1514 | FALSE), /* pcrel_offset */ | |
| 1515 | ||
| 1516 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1517 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1518 | 0, /* rightshift */ | |
| 1519 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1520 | 16, /* bitsize */ | |
| 1521 | FALSE, /* pc_relative */ | |
| 1522 | 0, /* bitpos */ | |
| 1523 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1524 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1525 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1526 | FALSE, /* partial_inplace */ | |
| 1527 | 0, /* src_mask */ | |
| 1528 | 0xfffc, /* dst_mask */ | |
| 1529 | FALSE), /* pcrel_offset */ | |
| 1530 | ||
| 1531 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1532 | sym+add and the value of the thread pointer (r13). */ | |
| 1533 | HOWTO (R_PPC64_TPREL64, | |
| 1534 | 0, /* rightshift */ | |
| 1535 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1536 | 64, /* bitsize */ | |
| 1537 | FALSE, /* pc_relative */ | |
| 1538 | 0, /* bitpos */ | |
| 1539 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1540 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1541 | "R_PPC64_TPREL64", /* name */ | |
| 1542 | FALSE, /* partial_inplace */ | |
| 1543 | 0, /* src_mask */ | |
| 1544 | ONES (64), /* dst_mask */ | |
| 1545 | FALSE), /* pcrel_offset */ | |
| 1546 | ||
| 1547 | /* A 16 bit tprel reloc. */ | |
| 1548 | HOWTO (R_PPC64_TPREL16, | |
| 1549 | 0, /* rightshift */ | |
| 1550 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1551 | 16, /* bitsize */ | |
| 1552 | FALSE, /* pc_relative */ | |
| 1553 | 0, /* bitpos */ | |
| 1554 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1555 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1556 | "R_PPC64_TPREL16", /* name */ | |
| 1557 | FALSE, /* partial_inplace */ | |
| 1558 | 0, /* src_mask */ | |
| 1559 | 0xffff, /* dst_mask */ | |
| 1560 | FALSE), /* pcrel_offset */ | |
| 1561 | ||
| 1562 | /* Like TPREL16, but no overflow. */ | |
| 1563 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1564 | 0, /* rightshift */ | |
| 1565 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1566 | 16, /* bitsize */ | |
| 1567 | FALSE, /* pc_relative */ | |
| 1568 | 0, /* bitpos */ | |
| 1569 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1570 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1571 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1572 | FALSE, /* partial_inplace */ | |
| 1573 | 0, /* src_mask */ | |
| 1574 | 0xffff, /* dst_mask */ | |
| 1575 | FALSE), /* pcrel_offset */ | |
| 1576 | ||
| 1577 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1578 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1579 | 16, /* rightshift */ | |
| 1580 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1581 | 16, /* bitsize */ | |
| 1582 | FALSE, /* pc_relative */ | |
| 1583 | 0, /* bitpos */ | |
| f9c6b907 | 1584 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1585 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1586 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1587 | FALSE, /* partial_inplace */ | |
| 1588 | 0, /* src_mask */ | |
| 1589 | 0xffff, /* dst_mask */ | |
| 1590 | FALSE), /* pcrel_offset */ | |
| 1591 | ||
| 1592 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1593 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1594 | 16, /* rightshift */ | |
| 1595 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1596 | 16, /* bitsize */ | |
| 1597 | FALSE, /* pc_relative */ | |
| 1598 | 0, /* bitpos */ | |
| f9c6b907 | 1599 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1600 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1601 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1602 | FALSE, /* partial_inplace */ | |
| 1603 | 0, /* src_mask */ | |
| 1604 | 0xffff, /* dst_mask */ | |
| 1605 | FALSE), /* pcrel_offset */ | |
| 1606 | ||
| 1607 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1608 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1609 | 32, /* rightshift */ | |
| 1610 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1611 | 16, /* bitsize */ | |
| 1612 | FALSE, /* pc_relative */ | |
| 1613 | 0, /* bitpos */ | |
| 1614 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1615 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1616 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1617 | FALSE, /* partial_inplace */ | |
| 1618 | 0, /* src_mask */ | |
| 1619 | 0xffff, /* dst_mask */ | |
| 1620 | FALSE), /* pcrel_offset */ | |
| 1621 | ||
| 1622 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1623 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1624 | 32, /* rightshift */ | |
| 1625 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1626 | 16, /* bitsize */ | |
| 1627 | FALSE, /* pc_relative */ | |
| 1628 | 0, /* bitpos */ | |
| 1629 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1630 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1631 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1632 | FALSE, /* partial_inplace */ | |
| 1633 | 0, /* src_mask */ | |
| 1634 | 0xffff, /* dst_mask */ | |
| 1635 | FALSE), /* pcrel_offset */ | |
| 1636 | ||
| 1637 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1638 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1639 | 48, /* rightshift */ | |
| 1640 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1641 | 16, /* bitsize */ | |
| 1642 | FALSE, /* pc_relative */ | |
| 1643 | 0, /* bitpos */ | |
| 1644 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1645 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1646 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1647 | FALSE, /* partial_inplace */ | |
| 1648 | 0, /* src_mask */ | |
| 1649 | 0xffff, /* dst_mask */ | |
| 1650 | FALSE), /* pcrel_offset */ | |
| 1651 | ||
| 1652 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1653 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1654 | 48, /* rightshift */ | |
| 1655 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1656 | 16, /* bitsize */ | |
| 1657 | FALSE, /* pc_relative */ | |
| 1658 | 0, /* bitpos */ | |
| 1659 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1660 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1661 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1662 | FALSE, /* partial_inplace */ | |
| 1663 | 0, /* src_mask */ | |
| 1664 | 0xffff, /* dst_mask */ | |
| 1665 | FALSE), /* pcrel_offset */ | |
| 1666 | ||
| 1667 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1668 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1669 | 0, /* rightshift */ | |
| 1670 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1671 | 16, /* bitsize */ | |
| 1672 | FALSE, /* pc_relative */ | |
| 1673 | 0, /* bitpos */ | |
| 1674 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1675 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1676 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1677 | FALSE, /* partial_inplace */ | |
| 1678 | 0, /* src_mask */ | |
| 1679 | 0xfffc, /* dst_mask */ | |
| 1680 | FALSE), /* pcrel_offset */ | |
| 1681 | ||
| 1682 | /* Like TPREL16_DS, but no overflow. */ | |
| 1683 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1684 | 0, /* rightshift */ | |
| 1685 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1686 | 16, /* bitsize */ | |
| 1687 | FALSE, /* pc_relative */ | |
| 1688 | 0, /* bitpos */ | |
| 1689 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1690 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1691 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1692 | FALSE, /* partial_inplace */ | |
| 1693 | 0, /* src_mask */ | |
| 1694 | 0xfffc, /* dst_mask */ | |
| 1695 | FALSE), /* pcrel_offset */ | |
| 1696 | ||
| 1697 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1698 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1699 | to the first entry relative to the TOC base (r2). */ | |
| 1700 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1701 | 0, /* rightshift */ | |
| 1702 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1703 | 16, /* bitsize */ | |
| 1704 | FALSE, /* pc_relative */ | |
| 1705 | 0, /* bitpos */ | |
| 1706 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1707 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1708 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1709 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1710 | 0, /* src_mask */ |
| 1711 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1712 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1713 | |
| 411e1bfb AM |
1714 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1715 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1716 | 0, /* rightshift */ |
| 1717 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1718 | 16, /* bitsize */ | |
| b34976b6 | 1719 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1720 | 0, /* bitpos */ |
| 1721 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1722 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1723 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1724 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1725 | 0, /* src_mask */ |
| 1726 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1727 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1728 | |
| 411e1bfb AM |
1729 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1730 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1731 | 16, /* rightshift */ |
| 1732 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1733 | 16, /* bitsize */ | |
| b34976b6 | 1734 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1735 | 0, /* bitpos */ |
| f9c6b907 | 1736 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1737 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1738 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1739 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1740 | 0, /* src_mask */ |
| 1741 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1742 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1743 | |
| 411e1bfb AM |
1744 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1745 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1746 | 16, /* rightshift */ |
| 1747 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1748 | 16, /* bitsize */ | |
| b34976b6 | 1749 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1750 | 0, /* bitpos */ |
| f9c6b907 | 1751 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1752 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1753 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1754 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1755 | 0, /* src_mask */ |
| 1756 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1757 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1758 | |
| 411e1bfb AM |
1759 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1760 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1761 | first entry relative to the TOC base (r2). */ | |
| 1762 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1763 | 0, /* rightshift */ |
| 1764 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1765 | 16, /* bitsize */ | |
| b34976b6 | 1766 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1767 | 0, /* bitpos */ |
| 411e1bfb AM |
1768 | complain_overflow_signed, /* complain_on_overflow */ |
| 1769 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1770 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1771 | FALSE, /* partial_inplace */ |
| d006db6c | 1772 | 0, /* src_mask */ |
| 411e1bfb | 1773 | 0xffff, /* dst_mask */ |
| b34976b6 | 1774 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1775 | |
| 411e1bfb AM |
1776 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1777 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1778 | 0, /* rightshift */ |
| 1779 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1780 | 16, /* bitsize */ | |
| b34976b6 | 1781 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1782 | 0, /* bitpos */ |
| 411e1bfb AM |
1783 | complain_overflow_dont, /* complain_on_overflow */ |
| 1784 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1785 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1786 | FALSE, /* partial_inplace */ |
| d006db6c | 1787 | 0, /* src_mask */ |
| 411e1bfb | 1788 | 0xffff, /* dst_mask */ |
| b34976b6 | 1789 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1790 | |
| 411e1bfb AM |
1791 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1792 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1793 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1794 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1795 | 16, /* bitsize */ | |
| b34976b6 | 1796 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1797 | 0, /* bitpos */ |
| f9c6b907 | 1798 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1799 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1800 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1801 | FALSE, /* partial_inplace */ |
| d006db6c | 1802 | 0, /* src_mask */ |
| 411e1bfb | 1803 | 0xffff, /* dst_mask */ |
| b34976b6 | 1804 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1805 | |
| 411e1bfb AM |
1806 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1807 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1808 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1809 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1810 | 16, /* bitsize */ | |
| b34976b6 | 1811 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1812 | 0, /* bitpos */ |
| f9c6b907 | 1813 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1814 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1815 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1816 | FALSE, /* partial_inplace */ |
| d006db6c | 1817 | 0, /* src_mask */ |
| 411e1bfb | 1818 | 0xffff, /* dst_mask */ |
| b34976b6 | 1819 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1820 | |
| 411e1bfb AM |
1821 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1822 | the offset to the entry relative to the TOC base (r2). */ | |
| 1823 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1824 | 0, /* rightshift */ |
| 1825 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1826 | 16, /* bitsize */ | |
| b34976b6 | 1827 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1828 | 0, /* bitpos */ |
| 411e1bfb | 1829 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1830 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1831 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1832 | FALSE, /* partial_inplace */ |
| d006db6c | 1833 | 0, /* src_mask */ |
| 5bd4f169 | 1834 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1835 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1836 | |
| 411e1bfb AM |
1837 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1838 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1839 | 0, /* rightshift */ |
| c061c2d8 AM |
1840 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1841 | 16, /* bitsize */ | |
| b34976b6 | 1842 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1843 | 0, /* bitpos */ |
| 411e1bfb AM |
1844 | complain_overflow_dont, /* complain_on_overflow */ |
| 1845 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1846 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1847 | FALSE, /* partial_inplace */ |
| d006db6c | 1848 | 0, /* src_mask */ |
| c061c2d8 | 1849 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1850 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1851 | |
| 411e1bfb AM |
1852 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1853 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1854 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1855 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1856 | 16, /* bitsize */ | |
| b34976b6 | 1857 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1858 | 0, /* bitpos */ |
| f9c6b907 | 1859 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1860 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1861 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1862 | FALSE, /* partial_inplace */ |
| d006db6c | 1863 | 0, /* src_mask */ |
| 411e1bfb | 1864 | 0xffff, /* dst_mask */ |
| b34976b6 | 1865 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1866 | |
| 411e1bfb AM |
1867 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1868 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1869 | 16, /* rightshift */ | |
| 1870 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1871 | 16, /* bitsize */ | |
| 1872 | FALSE, /* pc_relative */ | |
| 1873 | 0, /* bitpos */ | |
| f9c6b907 | 1874 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1875 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1876 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1877 | FALSE, /* partial_inplace */ | |
| 1878 | 0, /* src_mask */ | |
| 1879 | 0xffff, /* dst_mask */ | |
| 1880 | FALSE), /* pcrel_offset */ | |
| 1881 | ||
| 1882 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1883 | offset to the entry relative to the TOC base (r2). */ | |
| 1884 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1885 | 0, /* rightshift */ |
| 1886 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1887 | 16, /* bitsize */ | |
| b34976b6 | 1888 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1889 | 0, /* bitpos */ |
| 1890 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1891 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1892 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1893 | FALSE, /* partial_inplace */ |
| d006db6c | 1894 | 0, /* src_mask */ |
| ad8e1ba5 | 1895 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1896 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1897 | |
| 411e1bfb AM |
1898 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1899 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1900 | 0, /* rightshift */ |
| 1901 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1902 | 16, /* bitsize */ | |
| b34976b6 | 1903 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1904 | 0, /* bitpos */ |
| 1905 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1906 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1907 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1908 | FALSE, /* partial_inplace */ |
| d006db6c | 1909 | 0, /* src_mask */ |
| ad8e1ba5 | 1910 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1911 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1912 | |
| 411e1bfb AM |
1913 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1914 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1915 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1916 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1917 | 16, /* bitsize */ | |
| b34976b6 | 1918 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1919 | 0, /* bitpos */ |
| f9c6b907 | 1920 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1921 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1922 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1923 | FALSE, /* partial_inplace */ |
| d006db6c | 1924 | 0, /* src_mask */ |
| 411e1bfb | 1925 | 0xffff, /* dst_mask */ |
| b34976b6 | 1926 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1927 | |
| 411e1bfb AM |
1928 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1929 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1930 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1931 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1932 | 16, /* bitsize */ | |
| b34976b6 | 1933 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1934 | 0, /* bitpos */ |
| f9c6b907 | 1935 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1936 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1937 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1938 | FALSE, /* partial_inplace */ |
| d006db6c | 1939 | 0, /* src_mask */ |
| 411e1bfb | 1940 | 0xffff, /* dst_mask */ |
| b34976b6 | 1941 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1942 | |
| 25f23106 AM |
1943 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1944 | 0, /* rightshift */ | |
| 1945 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1946 | 0, /* bitsize */ | |
| 1947 | FALSE, /* pc_relative */ | |
| 1948 | 0, /* bitpos */ | |
| 1949 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1950 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1951 | "R_PPC64_JMP_IREL", /* name */ | |
| 1952 | FALSE, /* partial_inplace */ | |
| 1953 | 0, /* src_mask */ | |
| 1954 | 0, /* dst_mask */ | |
| 1955 | FALSE), /* pcrel_offset */ | |
| 1956 | ||
| e054468f AM |
1957 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1958 | 0, /* rightshift */ | |
| 1959 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1960 | 64, /* bitsize */ | |
| 1961 | FALSE, /* pc_relative */ | |
| 1962 | 0, /* bitpos */ | |
| 1963 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1964 | bfd_elf_generic_reloc, /* special_function */ | |
| 1965 | "R_PPC64_IRELATIVE", /* name */ | |
| 1966 | FALSE, /* partial_inplace */ | |
| 1967 | 0, /* src_mask */ | |
| 1968 | ONES (64), /* dst_mask */ | |
| 1969 | FALSE), /* pcrel_offset */ | |
| 1970 | ||
| 25f23106 AM |
1971 | /* A 16 bit relative relocation. */ |
| 1972 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1973 | 0, /* rightshift */ | |
| 1974 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1975 | 16, /* bitsize */ | |
| 1976 | TRUE, /* pc_relative */ | |
| 1977 | 0, /* bitpos */ | |
| b80eed39 | 1978 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1979 | bfd_elf_generic_reloc, /* special_function */ |
| 1980 | "R_PPC64_REL16", /* name */ | |
| 1981 | FALSE, /* partial_inplace */ | |
| 1982 | 0, /* src_mask */ | |
| 1983 | 0xffff, /* dst_mask */ | |
| 1984 | TRUE), /* pcrel_offset */ | |
| 1985 | ||
| 1986 | /* A 16 bit relative relocation without overflow. */ | |
| 1987 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1988 | 0, /* rightshift */ | |
| 1989 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1990 | 16, /* bitsize */ | |
| 1991 | TRUE, /* pc_relative */ | |
| 1992 | 0, /* bitpos */ | |
| 1993 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1994 | bfd_elf_generic_reloc, /* special_function */ | |
| 1995 | "R_PPC64_REL16_LO", /* name */ | |
| 1996 | FALSE, /* partial_inplace */ | |
| 1997 | 0, /* src_mask */ | |
| 1998 | 0xffff, /* dst_mask */ | |
| 1999 | TRUE), /* pcrel_offset */ | |
| 2000 | ||
| 2001 | /* The high order 16 bits of a relative address. */ | |
| 2002 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2003 | 16, /* rightshift */ | |
| 2004 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2005 | 16, /* bitsize */ | |
| 2006 | TRUE, /* pc_relative */ | |
| 2007 | 0, /* bitpos */ | |
| f9c6b907 | 2008 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2009 | bfd_elf_generic_reloc, /* special_function */ |
| 2010 | "R_PPC64_REL16_HI", /* name */ | |
| 2011 | FALSE, /* partial_inplace */ | |
| 2012 | 0, /* src_mask */ | |
| 2013 | 0xffff, /* dst_mask */ | |
| 2014 | TRUE), /* pcrel_offset */ | |
| 2015 | ||
| 2016 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2017 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2018 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2019 | 16, /* rightshift */ | |
| 2020 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2021 | 16, /* bitsize */ | |
| 2022 | TRUE, /* pc_relative */ | |
| 2023 | 0, /* bitpos */ | |
| f9c6b907 | 2024 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2025 | ppc64_elf_ha_reloc, /* special_function */ |
| 2026 | "R_PPC64_REL16_HA", /* name */ | |
| 2027 | FALSE, /* partial_inplace */ | |
| 2028 | 0, /* src_mask */ | |
| 2029 | 0xffff, /* dst_mask */ | |
| 2030 | TRUE), /* pcrel_offset */ | |
| 2031 | ||
| a680de9a PB |
2032 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2033 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2034 | 16, /* rightshift */ | |
| 2035 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2036 | 16, /* bitsize */ | |
| 2037 | TRUE, /* pc_relative */ | |
| 2038 | 0, /* bitpos */ | |
| 2039 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2040 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2041 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2042 | FALSE, /* partial_inplace */ | |
| 2043 | 0, /* src_mask */ | |
| 2044 | 0x1fffc1, /* dst_mask */ | |
| 2045 | TRUE), /* pcrel_offset */ | |
| 2046 | ||
| f9c6b907 AM |
2047 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2048 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2049 | 16, /* rightshift */ | |
| 2050 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2051 | 16, /* bitsize */ | |
| 2052 | FALSE, /* pc_relative */ | |
| 2053 | 0, /* bitpos */ | |
| 2054 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2055 | bfd_elf_generic_reloc, /* special_function */ | |
| 2056 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2057 | FALSE, /* partial_inplace */ | |
| 2058 | 0, /* src_mask */ | |
| 2059 | 0xffff, /* dst_mask */ | |
| 2060 | FALSE), /* pcrel_offset */ | |
| 2061 | ||
| 2062 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2063 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2064 | 16, /* rightshift */ | |
| 2065 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2066 | 16, /* bitsize */ | |
| 2067 | FALSE, /* pc_relative */ | |
| 2068 | 0, /* bitpos */ | |
| 2069 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2070 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2071 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2072 | FALSE, /* partial_inplace */ | |
| 2073 | 0, /* src_mask */ | |
| 2074 | 0xffff, /* dst_mask */ | |
| 2075 | FALSE), /* pcrel_offset */ | |
| 2076 | ||
| 2077 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2078 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2079 | 16, /* rightshift */ | |
| 2080 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2081 | 16, /* bitsize */ | |
| 2082 | FALSE, /* pc_relative */ | |
| 2083 | 0, /* bitpos */ | |
| 2084 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2085 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2086 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2087 | FALSE, /* partial_inplace */ | |
| 2088 | 0, /* src_mask */ | |
| 2089 | 0xffff, /* dst_mask */ | |
| 2090 | FALSE), /* pcrel_offset */ | |
| 2091 | ||
| 2092 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2093 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2094 | 16, /* rightshift */ | |
| 2095 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2096 | 16, /* bitsize */ | |
| 2097 | FALSE, /* pc_relative */ | |
| 2098 | 0, /* bitpos */ | |
| 2099 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2100 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2101 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2102 | FALSE, /* partial_inplace */ | |
| 2103 | 0, /* src_mask */ | |
| 2104 | 0xffff, /* dst_mask */ | |
| 2105 | FALSE), /* pcrel_offset */ | |
| 2106 | ||
| 2107 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2108 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2109 | 16, /* rightshift */ | |
| 2110 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2111 | 16, /* bitsize */ | |
| 2112 | FALSE, /* pc_relative */ | |
| 2113 | 0, /* bitpos */ | |
| 2114 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2115 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2116 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2117 | FALSE, /* partial_inplace */ | |
| 2118 | 0, /* src_mask */ | |
| 2119 | 0xffff, /* dst_mask */ | |
| 2120 | FALSE), /* pcrel_offset */ | |
| 2121 | ||
| 2122 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2123 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2124 | 16, /* rightshift */ | |
| 2125 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2126 | 16, /* bitsize */ | |
| 2127 | FALSE, /* pc_relative */ | |
| 2128 | 0, /* bitpos */ | |
| 2129 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2130 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2131 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2132 | FALSE, /* partial_inplace */ | |
| 2133 | 0, /* src_mask */ | |
| 2134 | 0xffff, /* dst_mask */ | |
| 2135 | FALSE), /* pcrel_offset */ | |
| 2136 | ||
| 006589cf AM |
2137 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2138 | HOWTO (R_PPC64_ENTRY, | |
| 2139 | 0, /* rightshift */ | |
| 2140 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2141 | 32, /* bitsize */ | |
| 2142 | FALSE, /* pc_relative */ | |
| 2143 | 0, /* bitpos */ | |
| 2144 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2145 | bfd_elf_generic_reloc, /* special_function */ | |
| 2146 | "R_PPC64_ENTRY", /* name */ | |
| 2147 | FALSE, /* partial_inplace */ | |
| 2148 | 0, /* src_mask */ | |
| 2149 | 0, /* dst_mask */ | |
| 2150 | FALSE), /* pcrel_offset */ | |
| 2151 | ||
| 45965137 AM |
2152 | /* Like ADDR64, but use local entry point of function. */ |
| 2153 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2154 | 0, /* rightshift */ | |
| 2155 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2156 | 64, /* bitsize */ | |
| 2157 | FALSE, /* pc_relative */ | |
| 2158 | 0, /* bitpos */ | |
| 2159 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2160 | bfd_elf_generic_reloc, /* special_function */ | |
| 2161 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2162 | FALSE, /* partial_inplace */ | |
| 2163 | 0, /* src_mask */ | |
| 2164 | ONES (64), /* dst_mask */ | |
| 2165 | FALSE), /* pcrel_offset */ | |
| 2166 | ||
| 5bd4f169 AM |
2167 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2168 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2169 | 0, /* rightshift */ | |
| 2170 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2171 | 0, /* bitsize */ | |
| b34976b6 | 2172 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2173 | 0, /* bitpos */ |
| 2174 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2175 | NULL, /* special_function */ | |
| 2176 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2177 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2178 | 0, /* src_mask */ |
| 2179 | 0, /* dst_mask */ | |
| b34976b6 | 2180 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2181 | |
| 2182 | /* GNU extension to record C++ vtable member usage. */ | |
| 2183 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2184 | 0, /* rightshift */ | |
| 2185 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2186 | 0, /* bitsize */ | |
| b34976b6 | 2187 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2188 | 0, /* bitpos */ |
| 2189 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2190 | NULL, /* special_function */ | |
| 2191 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2192 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2193 | 0, /* src_mask */ |
| 2194 | 0, /* dst_mask */ | |
| b34976b6 | 2195 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2196 | }; |
| 2197 | ||
| 2198 | \f | |
| 2199 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2200 | be done. */ | |
| 2201 | ||
| 2202 | static void | |
| 4ce794b7 | 2203 | ppc_howto_init (void) |
| 5bd4f169 AM |
2204 | { |
| 2205 | unsigned int i, type; | |
| 2206 | ||
| a4b6fadd | 2207 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2208 | { |
| 2209 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2210 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2211 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2212 | } | |
| 2213 | } | |
| 2214 | ||
| 2215 | static reloc_howto_type * | |
| 4ce794b7 AM |
2216 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2217 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2218 | { |
| 411e1bfb | 2219 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2220 | |
| 2221 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2222 | /* Initialize howto table if needed. */ | |
| 2223 | ppc_howto_init (); | |
| 2224 | ||
| 4ce794b7 | 2225 | switch (code) |
| 5bd4f169 AM |
2226 | { |
| 2227 | default: | |
| 4ce794b7 | 2228 | return NULL; |
| 5bd4f169 | 2229 | |
| 411e1bfb AM |
2230 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2231 | break; | |
| 2232 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2233 | break; | |
| 2234 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2235 | break; | |
| 2236 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2237 | break; | |
| 2238 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2239 | break; | |
| 2240 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2241 | break; | |
| f9c6b907 AM |
2242 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2243 | break; | |
| 411e1bfb | 2244 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2245 | break; |
| f9c6b907 AM |
2246 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2247 | break; | |
| 411e1bfb | 2248 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2249 | break; |
| 411e1bfb | 2250 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2251 | break; |
| 411e1bfb | 2252 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2253 | break; |
| 411e1bfb | 2254 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2255 | break; |
| 411e1bfb | 2256 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2257 | break; |
| 411e1bfb | 2258 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2259 | break; |
| 411e1bfb | 2260 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2261 | break; |
| 411e1bfb | 2262 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2263 | break; |
| 411e1bfb | 2264 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2265 | break; |
| 411e1bfb | 2266 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2267 | break; |
| 411e1bfb | 2268 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2269 | break; |
| 411e1bfb | 2270 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2271 | break; |
| 411e1bfb | 2272 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2273 | break; |
| 411e1bfb | 2274 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2275 | break; |
| 411e1bfb | 2276 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2277 | break; |
| 411e1bfb | 2278 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2279 | break; |
| 411e1bfb | 2280 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2281 | break; |
| 411e1bfb | 2282 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2283 | break; |
| 411e1bfb | 2284 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2285 | break; |
| 411e1bfb | 2286 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2287 | break; |
| 411e1bfb | 2288 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2289 | break; |
| 411e1bfb | 2290 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2291 | break; |
| 411e1bfb | 2292 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2293 | break; |
| 411e1bfb | 2294 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2295 | break; |
| 411e1bfb | 2296 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2297 | break; |
| 411e1bfb | 2298 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2299 | break; |
| 411e1bfb | 2300 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2301 | break; |
| 411e1bfb | 2302 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2303 | break; |
| 411e1bfb | 2304 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2305 | break; |
| 411e1bfb | 2306 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2307 | break; |
| 411e1bfb | 2308 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2309 | break; |
| 411e1bfb | 2310 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2311 | break; |
| 411e1bfb | 2312 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2313 | break; |
| 411e1bfb | 2314 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2315 | break; |
| 411e1bfb | 2316 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2317 | break; |
| 411e1bfb | 2318 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2319 | break; |
| 411e1bfb | 2320 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2321 | break; |
| 411e1bfb | 2322 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2323 | break; |
| 411e1bfb | 2324 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2325 | break; |
| 411e1bfb | 2326 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2327 | break; |
| 411e1bfb | 2328 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2329 | break; |
| 411e1bfb | 2330 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2331 | break; |
| 411e1bfb | 2332 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2333 | break; |
| 411e1bfb | 2334 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2335 | break; |
| 411e1bfb | 2336 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2337 | break; |
| 411e1bfb | 2338 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2339 | break; |
| 411e1bfb | 2340 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2341 | break; |
| 411e1bfb | 2342 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2343 | break; |
| 411e1bfb | 2344 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2345 | break; |
| 411e1bfb | 2346 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2347 | break; |
| 411e1bfb | 2348 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2349 | break; |
| 411e1bfb | 2350 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2351 | break; |
| 411e1bfb | 2352 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2353 | break; |
| 727fc41e AM |
2354 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2355 | break; | |
| 2356 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2357 | break; | |
| 411e1bfb | 2358 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2359 | break; |
| 411e1bfb | 2360 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2361 | break; |
| 411e1bfb | 2362 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2363 | break; |
| 411e1bfb | 2364 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2365 | break; |
| f9c6b907 AM |
2366 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2367 | break; | |
| 411e1bfb | 2368 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2369 | break; |
| f9c6b907 AM |
2370 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2371 | break; | |
| 411e1bfb | 2372 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2373 | break; |
| 411e1bfb AM |
2374 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2375 | break; | |
| 2376 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2377 | break; | |
| 2378 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2379 | break; | |
| f9c6b907 AM |
2380 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2381 | break; | |
| 411e1bfb AM |
2382 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2383 | break; | |
| f9c6b907 AM |
2384 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2385 | break; | |
| 411e1bfb AM |
2386 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2387 | break; | |
| 2388 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2389 | break; | |
| 2390 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2391 | break; | |
| 2392 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2393 | break; | |
| 2394 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2395 | break; | |
| 2396 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2397 | break; | |
| 2398 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2399 | break; | |
| 2400 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2401 | break; | |
| 2402 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2403 | break; | |
| 2404 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2405 | break; | |
| 2406 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2407 | break; | |
| 2408 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2409 | break; | |
| 2410 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2411 | break; | |
| 2412 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2413 | break; | |
| 2414 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2415 | break; | |
| 2416 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2417 | break; | |
| 2418 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2419 | break; | |
| 2420 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2421 | break; | |
| 2422 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2423 | break; | |
| 2424 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2425 | break; | |
| 2426 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2427 | break; | |
| 2428 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2429 | break; | |
| 2430 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2431 | break; | |
| 2432 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2433 | break; | |
| 2434 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2435 | break; | |
| 2436 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2437 | break; | |
| 2438 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2439 | break; | |
| 2440 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2441 | break; | |
| 2442 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2443 | break; | |
| 25f23106 AM |
2444 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2445 | break; | |
| 2446 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2447 | break; | |
| 2448 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2449 | break; | |
| 2450 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2451 | break; | |
| a680de9a PB |
2452 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2453 | break; | |
| 006589cf AM |
2454 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2455 | break; | |
| 45965137 AM |
2456 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2457 | break; | |
| 411e1bfb AM |
2458 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2459 | break; | |
| 2460 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2461 | break; |
| 2462 | } | |
| 2463 | ||
| 4ce794b7 | 2464 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2465 | }; |
| 2466 | ||
| 157090f7 AM |
2467 | static reloc_howto_type * |
| 2468 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2469 | const char *r_name) | |
| 2470 | { | |
| 2471 | unsigned int i; | |
| 2472 | ||
| a4b6fadd | 2473 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2474 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2475 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2476 | return &ppc64_elf_howto_raw[i]; | |
| 2477 | ||
| 2478 | return NULL; | |
| 2479 | } | |
| 2480 | ||
| 5bd4f169 AM |
2481 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2482 | ||
| 2483 | static void | |
| 4ce794b7 AM |
2484 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2485 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2486 | { |
| 65f38f15 AM |
2487 | unsigned int type; |
| 2488 | ||
| ef60b7ff | 2489 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2490 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2491 | ppc_howto_init (); |
| 2492 | ||
| 65f38f15 | 2493 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2494 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2495 | { |
| 695344c0 | 2496 | /* xgettext:c-format */ |
| 4eca0228 AM |
2497 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
| 2498 | abfd, (int) type); | |
| 3ec2b351 | 2499 | type = R_PPC64_NONE; |
| d0fb9a8d | 2500 | } |
| 65f38f15 | 2501 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2502 | } |
| 2503 | ||
| 04c9666a | 2504 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2505 | |
| 2506 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2507 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2508 | void *data, asection *input_section, | |
| 2509 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2510 | { |
| a680de9a PB |
2511 | enum elf_ppc64_reloc_type r_type; |
| 2512 | long insn; | |
| 2513 | bfd_size_type octets; | |
| 2514 | bfd_vma value; | |
| 2515 | ||
| 805fc799 AM |
2516 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2517 | call the generic function. Any adjustment will be done at final | |
| 2518 | link time. */ | |
| 2519 | if (output_bfd != NULL) | |
| cedb70c5 | 2520 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2521 | input_section, output_bfd, error_message); |
| 2522 | ||
| 2523 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2524 | We won't actually be using the low 16 bits, so trashing them | |
| 2525 | doesn't matter. */ | |
| 2526 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2527 | r_type = reloc_entry->howto->type; |
| 2528 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2529 | return bfd_reloc_continue; | |
| 2530 | ||
| 2531 | value = 0; | |
| 2532 | if (!bfd_is_com_section (symbol->section)) | |
| 2533 | value = symbol->value; | |
| 2534 | value += (reloc_entry->addend | |
| 2535 | + symbol->section->output_offset | |
| 2536 | + symbol->section->output_section->vma); | |
| 2537 | value -= (reloc_entry->address | |
| 2538 | + input_section->output_offset | |
| 2539 | + input_section->output_section->vma); | |
| 2540 | value = (bfd_signed_vma) value >> 16; | |
| 2541 | ||
| 2542 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2543 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2544 | insn &= ~0x1fffc1; | |
| 2545 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
| 2546 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
| 2547 | if (value + 0x8000 > 0xffff) | |
| 2548 | return bfd_reloc_overflow; | |
| 2549 | return bfd_reloc_ok; | |
| 805fc799 | 2550 | } |
| 5bd4f169 | 2551 | |
| 2441e016 AM |
2552 | static bfd_reloc_status_type |
| 2553 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2554 | void *data, asection *input_section, | |
| 2555 | bfd *output_bfd, char **error_message) | |
| 2556 | { | |
| 2557 | if (output_bfd != NULL) | |
| 2558 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2559 | input_section, output_bfd, error_message); | |
| 2560 | ||
| 699733f6 AM |
2561 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2562 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2563 | { |
| 2564 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2565 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2566 | NULL, NULL, FALSE); |
| 2441e016 AM |
2567 | if (dest != (bfd_vma) -1) |
| 2568 | reloc_entry->addend = dest - (symbol->value | |
| 2569 | + symbol->section->output_section->vma | |
| 2570 | + symbol->section->output_offset); | |
| 2571 | } | |
| 810d4e75 AM |
2572 | else |
| 2573 | { | |
| 2574 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2575 | ||
| 2576 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2577 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2578 | && abiversion (symbol->section->owner) >= 2) |
| 2579 | { | |
| 2580 | unsigned int i; | |
| 2581 | ||
| 2582 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2583 | { | |
| 2584 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2585 | ||
| 2586 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2587 | { | |
| 2588 | elfsym = (elf_symbol_type *) symdef; | |
| 2589 | break; | |
| 2590 | } | |
| 2591 | } | |
| 2592 | } | |
| 2593 | reloc_entry->addend | |
| 2594 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2595 | } | |
| 2441e016 AM |
2596 | return bfd_reloc_continue; |
| 2597 | } | |
| 2598 | ||
| 805fc799 | 2599 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2600 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2601 | void *data, asection *input_section, | |
| 2602 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2603 | { |
| 2604 | long insn; | |
| 04c9666a | 2605 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2606 | bfd_size_type octets; |
| 794e51c0 AM |
2607 | /* Assume 'at' branch hints. */ |
| 2608 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2609 | |
| 2610 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2611 | call the generic function. Any adjustment will be done at final | |
| 2612 | link time. */ | |
| 5bd4f169 | 2613 | if (output_bfd != NULL) |
| cedb70c5 | 2614 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2615 | input_section, output_bfd, error_message); |
| 2616 | ||
| 2617 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2618 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2619 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2620 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2621 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2622 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2623 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2624 | |
| 794e51c0 | 2625 | if (is_isa_v2) |
| 5bd4f169 | 2626 | { |
| 805fc799 AM |
2627 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2628 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2629 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2630 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2631 | insn |= 0x02 << 21; | |
| 2632 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2633 | insn |= 0x08 << 21; | |
| 2634 | else | |
| 2441e016 | 2635 | goto out; |
| 5bd4f169 | 2636 | } |
| 805fc799 AM |
2637 | else |
| 2638 | { | |
| 2639 | bfd_vma target = 0; | |
| 2640 | bfd_vma from; | |
| 5bd4f169 | 2641 | |
| 805fc799 AM |
2642 | if (!bfd_is_com_section (symbol->section)) |
| 2643 | target = symbol->value; | |
| 2644 | target += symbol->section->output_section->vma; | |
| 2645 | target += symbol->section->output_offset; | |
| 2646 | target += reloc_entry->addend; | |
| 5bd4f169 | 2647 | |
| 805fc799 AM |
2648 | from = (reloc_entry->address |
| 2649 | + input_section->output_offset | |
| 2650 | + input_section->output_section->vma); | |
| 5bd4f169 | 2651 | |
| 805fc799 AM |
2652 | /* Invert 'y' bit if not the default. */ |
| 2653 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2654 | insn ^= 0x01 << 21; | |
| 2655 | } | |
| 4ce794b7 | 2656 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2657 | out: |
| 2658 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2659 | input_section, output_bfd, error_message); | |
| 805fc799 | 2660 | } |
| 5bd4f169 | 2661 | |
| 805fc799 | 2662 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2663 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2664 | void *data, asection *input_section, | |
| 2665 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2666 | { |
| 2667 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2668 | call the generic function. Any adjustment will be done at final | |
| 2669 | link time. */ | |
| 2670 | if (output_bfd != NULL) | |
| cedb70c5 | 2671 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2672 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2673 | |
| 805fc799 AM |
2674 | /* Subtract the symbol section base address. */ |
| 2675 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2676 | return bfd_reloc_continue; |
| 2677 | } | |
| 2678 | ||
| 805fc799 | 2679 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2680 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2681 | void *data, asection *input_section, | |
| 2682 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2683 | { |
| 2684 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2685 | call the generic function. Any adjustment will be done at final | |
| 2686 | link time. */ | |
| 2687 | if (output_bfd != NULL) | |
| cedb70c5 | 2688 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2689 | input_section, output_bfd, error_message); |
| 2690 | ||
| 2691 | /* Subtract the symbol section base address. */ | |
| 2692 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2693 | ||
| 2694 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2695 | reloc_entry->addend += 0x8000; | |
| 2696 | return bfd_reloc_continue; | |
| 2697 | } | |
| 2698 | ||
| 2699 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2700 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2701 | void *data, asection *input_section, | |
| 2702 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2703 | { |
| 2704 | bfd_vma TOCstart; | |
| 2705 | ||
| 2706 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2707 | call the generic function. Any adjustment will be done at final | |
| 2708 | link time. */ | |
| 2709 | if (output_bfd != NULL) | |
| cedb70c5 | 2710 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2711 | input_section, output_bfd, error_message); |
| 2712 | ||
| 2713 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2714 | if (TOCstart == 0) | |
| 1c865ab2 | 2715 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2716 | |
| 2717 | /* Subtract the TOC base address. */ | |
| 2718 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2719 | return bfd_reloc_continue; | |
| 2720 | } | |
| 2721 | ||
| 2722 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2723 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2724 | void *data, asection *input_section, | |
| 2725 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2726 | { |
| 2727 | bfd_vma TOCstart; | |
| 2728 | ||
| 2729 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2730 | call the generic function. Any adjustment will be done at final | |
| 2731 | link time. */ | |
| 2732 | if (output_bfd != NULL) | |
| cedb70c5 | 2733 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2734 | input_section, output_bfd, error_message); |
| 2735 | ||
| 2736 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2737 | if (TOCstart == 0) | |
| 1c865ab2 | 2738 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2739 | |
| 2740 | /* Subtract the TOC base address. */ | |
| 2741 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2742 | ||
| 2743 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2744 | reloc_entry->addend += 0x8000; | |
| 2745 | return bfd_reloc_continue; | |
| 2746 | } | |
| 2747 | ||
| 2748 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2749 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2750 | void *data, asection *input_section, | |
| 2751 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2752 | { |
| 2753 | bfd_vma TOCstart; | |
| 2754 | bfd_size_type octets; | |
| 2755 | ||
| 2756 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2757 | call the generic function. Any adjustment will be done at final | |
| 2758 | link time. */ | |
| 2759 | if (output_bfd != NULL) | |
| cedb70c5 | 2760 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2761 | input_section, output_bfd, error_message); |
| 2762 | ||
| 2763 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2764 | if (TOCstart == 0) | |
| 1c865ab2 | 2765 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2766 | |
| 2767 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2768 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2769 | return bfd_reloc_ok; | |
| 2770 | } | |
| 2771 | ||
| 2772 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2773 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2774 | void *data, asection *input_section, | |
| 2775 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2776 | { |
| 2777 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2778 | call the generic function. Any adjustment will be done at final | |
| 2779 | link time. */ | |
| 2780 | if (output_bfd != NULL) | |
| cedb70c5 | 2781 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2782 | input_section, output_bfd, error_message); |
| 2783 | ||
| 2784 | if (error_message != NULL) | |
| 2785 | { | |
| 2786 | static char buf[60]; | |
| 2787 | sprintf (buf, "generic linker can't handle %s", | |
| 2788 | reloc_entry->howto->name); | |
| 2789 | *error_message = buf; | |
| 2790 | } | |
| 2791 | return bfd_reloc_dangerous; | |
| 2792 | } | |
| 2793 | ||
| 927be08e AM |
2794 | /* Track GOT entries needed for a given symbol. We might need more |
| 2795 | than one got entry per symbol. */ | |
| 2796 | struct got_entry | |
| 2797 | { | |
| 2798 | struct got_entry *next; | |
| 2799 | ||
| 2800 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2801 | bfd_vma addend; | |
| 2802 | ||
| 2803 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2804 | symbol referenced from different input files. This is to support | |
| 2805 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2806 | from one input file to another. After partitioning into TOC groups | |
| 2807 | we merge entries within the group. | |
| 2808 | ||
| 2809 | Point to the BFD owning this GOT entry. */ | |
| 2810 | bfd *owner; | |
| 2811 | ||
| 2812 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2813 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2814 | unsigned char tls_type; |
| 927be08e AM |
2815 | |
| 2816 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2817 | unsigned char is_indirect; |
| 927be08e AM |
2818 | |
| 2819 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2820 | union | |
| 2821 | { | |
| 2822 | bfd_signed_vma refcount; | |
| 2823 | bfd_vma offset; | |
| 2824 | struct got_entry *ent; | |
| 2825 | } got; | |
| 2826 | }; | |
| 2827 | ||
| 2828 | /* The same for PLT. */ | |
| 2829 | struct plt_entry | |
| 2830 | { | |
| 2831 | struct plt_entry *next; | |
| 2832 | ||
| 2833 | bfd_vma addend; | |
| 2834 | ||
| 2835 | union | |
| 2836 | { | |
| 2837 | bfd_signed_vma refcount; | |
| 2838 | bfd_vma offset; | |
| 2839 | } plt; | |
| 2840 | }; | |
| 2841 | ||
| e717da7e AM |
2842 | struct ppc64_elf_obj_tdata |
| 2843 | { | |
| 2844 | struct elf_obj_tdata elf; | |
| 2845 | ||
| 2846 | /* Shortcuts to dynamic linker sections. */ | |
| 2847 | asection *got; | |
| 2848 | asection *relgot; | |
| 2849 | ||
| b3fac117 AM |
2850 | /* Used during garbage collection. We attach global symbols defined |
| 2851 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2852 | asection *deleted_section; | |
| 81688140 | 2853 | |
| 927be08e | 2854 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2855 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2856 | struct got_entry tlsld_got; |
| 8860955f | 2857 | |
| 729eabd5 AM |
2858 | union { |
| 2859 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2860 | Elf_Internal_Rela *relocs; | |
| 2861 | ||
| 2862 | /* Section contents. */ | |
| 2863 | bfd_byte *contents; | |
| 2864 | } opd; | |
| d77c8a4b AM |
2865 | |
| 2866 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2867 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2868 | unsigned int has_small_toc_reloc : 1; |
| 2869 | ||
| 560c8763 AM |
2870 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2871 | instruction not one we handle. */ | |
| 2872 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2873 | }; |
| 2874 | ||
| 2875 | #define ppc64_elf_tdata(bfd) \ | |
| 2876 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2877 | ||
| 2878 | #define ppc64_tlsld_got(bfd) \ | |
| 2879 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2880 | ||
| 0c8d6e5c AM |
2881 | #define is_ppc64_elf(bfd) \ |
| 2882 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2883 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2884 | |
| e717da7e AM |
2885 | /* Override the generic function because we store some extras. */ |
| 2886 | ||
| 2887 | static bfd_boolean | |
| 2888 | ppc64_elf_mkobject (bfd *abfd) | |
| 2889 | { | |
| 0ffa91dd | 2890 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2891 | PPC64_ELF_DATA); |
| e717da7e AM |
2892 | } |
| 2893 | ||
| feee612b | 2894 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2895 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2896 | |
| b34976b6 | 2897 | static bfd_boolean |
| 4ce794b7 | 2898 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2899 | { |
| 14b57c7c AM |
2900 | if (!abfd->arch_info->the_default) |
| 2901 | return TRUE; | |
| 2902 | ||
| 2903 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2904 | { |
| 2905 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2906 | ||
| 2907 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2908 | { | |
| 2909 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2910 | abfd->arch_info = abfd->arch_info->next; | |
| 2911 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2912 | } | |
| 2913 | } | |
| 14b57c7c | 2914 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2915 | } |
| 2916 | ||
| d37c89e5 AM |
2917 | /* Support for core dump NOTE sections. */ |
| 2918 | ||
| 2919 | static bfd_boolean | |
| 2920 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2921 | { | |
| eea6121a | 2922 | size_t offset, size; |
| d37c89e5 AM |
2923 | |
| 2924 | if (note->descsz != 504) | |
| 2925 | return FALSE; | |
| 2926 | ||
| 2927 | /* pr_cursig */ | |
| 228e534f | 2928 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2929 | |
| 2930 | /* pr_pid */ | |
| 228e534f | 2931 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2932 | |
| 2933 | /* pr_reg */ | |
| 2934 | offset = 112; | |
| eea6121a | 2935 | size = 384; |
| d37c89e5 AM |
2936 | |
| 2937 | /* Make a ".reg/999" section. */ | |
| 2938 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2939 | size, note->descpos + offset); |
| d37c89e5 AM |
2940 | } |
| 2941 | ||
| 2942 | static bfd_boolean | |
| 2943 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2944 | { | |
| 2945 | if (note->descsz != 136) | |
| 2946 | return FALSE; | |
| 2947 | ||
| 228e534f | 2948 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2949 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2950 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2951 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2952 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2953 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2954 | ||
| 2955 | return TRUE; | |
| 2956 | } | |
| 2957 | ||
| 183e98be AM |
2958 | static char * |
| 2959 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2960 | ...) | |
| 2961 | { | |
| 2962 | switch (note_type) | |
| 2963 | { | |
| 2964 | default: | |
| 2965 | return NULL; | |
| 2966 | ||
| 2967 | case NT_PRPSINFO: | |
| 2968 | { | |
| 2969 | char data[136]; | |
| 2970 | va_list ap; | |
| 2971 | ||
| 2972 | va_start (ap, note_type); | |
| 75cd47ed | 2973 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2974 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2975 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2976 | va_end (ap); | |
| 2977 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2978 | "CORE", note_type, data, sizeof (data)); | |
| 2979 | } | |
| 2980 | ||
| 2981 | case NT_PRSTATUS: | |
| 2982 | { | |
| 2983 | char data[504]; | |
| 2984 | va_list ap; | |
| 2985 | long pid; | |
| 2986 | int cursig; | |
| 2987 | const void *greg; | |
| 2988 | ||
| 2989 | va_start (ap, note_type); | |
| 2990 | memset (data, 0, 112); | |
| 2991 | pid = va_arg (ap, long); | |
| 2992 | bfd_put_32 (abfd, pid, data + 32); | |
| 2993 | cursig = va_arg (ap, int); | |
| 2994 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2995 | greg = va_arg (ap, const void *); | |
| 2996 | memcpy (data + 112, greg, 384); | |
| 2997 | memset (data + 496, 0, 8); | |
| 2998 | va_end (ap); | |
| 2999 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3000 | "CORE", note_type, data, sizeof (data)); | |
| 3001 | } | |
| 3002 | } | |
| 3003 | } | |
| 3004 | ||
| 5d35169e AM |
3005 | /* Add extra PPC sections. */ |
| 3006 | ||
| b35d266b | 3007 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3008 | { |
| 0112cd26 NC |
3009 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3010 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3011 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3012 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3013 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3014 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3015 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
3016 | }; |
| 3017 | ||
| 7c8fe5c4 AM |
3018 | enum _ppc64_sec_type { |
| 3019 | sec_normal = 0, | |
| 3020 | sec_opd = 1, | |
| 3021 | sec_toc = 2 | |
| 3022 | }; | |
| 3023 | ||
| f0abc2a1 AM |
3024 | struct _ppc64_elf_section_data |
| 3025 | { | |
| 3026 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3027 | |
| f0abc2a1 AM |
3028 | union |
| 3029 | { | |
| 51aecdc5 AM |
3030 | /* An array with one entry for each opd function descriptor, |
| 3031 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3032 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3033 | struct _opd_sec_data |
| 3034 | { | |
| 3035 | /* Points to the function code section for local opd entries. */ | |
| 3036 | asection **func_sec; | |
| 3037 | ||
| 3038 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3039 | long *adjust; | |
| 3040 | } opd; | |
| 7c8fe5c4 | 3041 | |
| 3a71aa26 AM |
3042 | /* An array for toc sections, indexed by offset/8. */ |
| 3043 | struct _toc_sec_data | |
| 3044 | { | |
| 3045 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3046 | unsigned *symndx; | |
| 3047 | ||
| 3048 | /* And the relocation addend. */ | |
| 3049 | bfd_vma *add; | |
| 3050 | } toc; | |
| 7c8fe5c4 AM |
3051 | } u; |
| 3052 | ||
| 3053 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3054 | |
| 7c8fe5c4 AM |
3055 | /* Flag set when small branches are detected. Used to |
| 3056 | select suitable defaults for the stub group size. */ | |
| 3057 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3058 | }; |
| 3059 | ||
| 3060 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3061 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3062 | |
| 3063 | static bfd_boolean | |
| 4ce794b7 | 3064 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3065 | { |
| f592407e AM |
3066 | if (!sec->used_by_bfd) |
| 3067 | { | |
| 3068 | struct _ppc64_elf_section_data *sdata; | |
| 3069 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3070 | |
| f592407e AM |
3071 | sdata = bfd_zalloc (abfd, amt); |
| 3072 | if (sdata == NULL) | |
| 3073 | return FALSE; | |
| 3074 | sec->used_by_bfd = sdata; | |
| 3075 | } | |
| f0abc2a1 AM |
3076 | |
| 3077 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3078 | } | |
| 4025353c | 3079 | |
| 74f0fb50 | 3080 | static struct _opd_sec_data * |
| 4025353c AM |
3081 | get_opd_info (asection * sec) |
| 3082 | { | |
| 3083 | if (sec != NULL | |
| 3084 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3085 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3086 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3087 | return NULL; |
| 3088 | } | |
| 90e3cdf2 JJ |
3089 | \f |
| 3090 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3091 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3092 | static asection *synthetic_opd; |
| 90e3cdf2 | 3093 | |
| 699733f6 | 3094 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3095 | |
| 3096 | static int | |
| 3097 | compare_symbols (const void *ap, const void *bp) | |
| 3098 | { | |
| 3099 | const asymbol *a = * (const asymbol **) ap; | |
| 3100 | const asymbol *b = * (const asymbol **) bp; | |
| 3101 | ||
| 699733f6 AM |
3102 | /* Section symbols first. */ |
| 3103 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3104 | return -1; |
| 699733f6 | 3105 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3106 | return 1; |
| 3107 | ||
| 699733f6 | 3108 | /* then .opd symbols. */ |
| cd285db5 AM |
3109 | if (synthetic_opd != NULL) |
| 3110 | { | |
| 3111 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3112 | && strcmp (b->section->name, ".opd") != 0) | |
| 3113 | return -1; | |
| 3114 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3115 | && strcmp (b->section->name, ".opd") == 0) | |
| 3116 | return 1; | |
| 3117 | } | |
| 90e3cdf2 | 3118 | |
| 699733f6 | 3119 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3120 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3121 | == (SEC_CODE | SEC_ALLOC) | |
| 3122 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3123 | != (SEC_CODE | SEC_ALLOC)) | |
| 3124 | return -1; | |
| 3125 | ||
| 3126 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3127 | != (SEC_CODE | SEC_ALLOC) | |
| 3128 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3129 | == (SEC_CODE | SEC_ALLOC)) | |
| 3130 | return 1; | |
| 3131 | ||
| 3132 | if (synthetic_relocatable) | |
| 3133 | { | |
| 3134 | if (a->section->id < b->section->id) | |
| 3135 | return -1; | |
| 3136 | ||
| 3137 | if (a->section->id > b->section->id) | |
| 3138 | return 1; | |
| 3139 | } | |
| 3140 | ||
| 3141 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3142 | return -1; | |
| 3143 | ||
| 3144 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3145 | return 1; | |
| 3146 | ||
| 4d35a0aa AM |
3147 | /* For syms with the same value, prefer strong dynamic global function |
| 3148 | syms over other syms. */ | |
| 3149 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3150 | return -1; | |
| 3151 | ||
| 3152 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3153 | return 1; | |
| 3154 | ||
| 3155 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3156 | return -1; | |
| 3157 | ||
| 3158 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3159 | return 1; | |
| 3160 | ||
| 3161 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3162 | return -1; | |
| 3163 | ||
| 3164 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3165 | return 1; | |
| 3166 | ||
| 3167 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3168 | return -1; | |
| 3169 | ||
| 3170 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3171 | return 1; | |
| 3172 | ||
| 90e3cdf2 JJ |
3173 | return 0; |
| 3174 | } | |
| 3175 | ||
| 699733f6 | 3176 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3177 | |
| 699733f6 | 3178 | static asymbol * |
| 7292b3ac | 3179 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3180 | { |
| 699733f6 | 3181 | long mid; |
| 90e3cdf2 | 3182 | |
| 7292b3ac | 3183 | if (id == (unsigned) -1) |
| 699733f6 AM |
3184 | { |
| 3185 | while (lo < hi) | |
| 3186 | { | |
| 3187 | mid = (lo + hi) >> 1; | |
| 3188 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3189 | lo = mid + 1; | |
| 3190 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3191 | hi = mid; | |
| 3192 | else | |
| 3193 | return syms[mid]; | |
| 3194 | } | |
| 3195 | } | |
| 3196 | else | |
| 3197 | { | |
| 3198 | while (lo < hi) | |
| 3199 | { | |
| 3200 | mid = (lo + hi) >> 1; | |
| 3201 | if (syms[mid]->section->id < id) | |
| 3202 | lo = mid + 1; | |
| 3203 | else if (syms[mid]->section->id > id) | |
| 3204 | hi = mid; | |
| 3205 | else if (syms[mid]->value < value) | |
| 3206 | lo = mid + 1; | |
| 3207 | else if (syms[mid]->value > value) | |
| 3208 | hi = mid; | |
| 3209 | else | |
| 3210 | return syms[mid]; | |
| 3211 | } | |
| 3212 | } | |
| 3213 | return NULL; | |
| 90e3cdf2 JJ |
3214 | } |
| 3215 | ||
| 468392fb AM |
3216 | static bfd_boolean |
| 3217 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3218 | { | |
| 3219 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3220 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3221 | && section->vma <= vma | |
| 3222 | && vma < section->vma + section->size); | |
| 3223 | } | |
| 3224 | ||
| 699733f6 | 3225 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3226 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3227 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3228 | |
| 3229 | static long | |
| a7535cf3 AM |
3230 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3231 | long static_count, asymbol **static_syms, | |
| 3232 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3233 | asymbol **ret) |
| 90e3cdf2 JJ |
3234 | { |
| 3235 | asymbol *s; | |
| 699733f6 AM |
3236 | long i; |
| 3237 | long count; | |
| 90e3cdf2 | 3238 | char *names; |
| a7535cf3 | 3239 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3240 | asection *opd = NULL; |
| 90e3cdf2 | 3241 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3242 | asymbol **syms; |
| ee67d69a | 3243 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3244 | |
| 3245 | *ret = NULL; | |
| 3246 | ||
| ee67d69a AM |
3247 | if (abi < 2) |
| 3248 | { | |
| 3249 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3250 | if (opd == NULL && abi == 1) | |
| 3251 | return 0; | |
| 3252 | } | |
| 90e3cdf2 | 3253 | |
| a7535cf3 | 3254 | symcount = static_count; |
| c9727e01 | 3255 | if (!relocatable) |
| a7535cf3 | 3256 | symcount += dyn_count; |
| 90e3cdf2 | 3257 | if (symcount == 0) |
| c9727e01 | 3258 | return 0; |
| 90e3cdf2 | 3259 | |
| a7535cf3 AM |
3260 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3261 | if (syms == NULL) | |
| 7356fed5 | 3262 | return -1; |
| a7535cf3 AM |
3263 | |
| 3264 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3265 | { | |
| 3266 | /* Use both symbol tables. */ | |
| 3267 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3268 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3269 | } | |
| 3270 | else if (!relocatable && static_count == 0) | |
| 3271 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3272 | else | |
| 3273 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3274 | ||
| 90e3cdf2 | 3275 | synthetic_relocatable = relocatable; |
| cd285db5 | 3276 | synthetic_opd = opd; |
| 595da8c5 | 3277 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3278 | |
| c9727e01 AM |
3279 | if (!relocatable && symcount > 1) |
| 3280 | { | |
| 3281 | long j; | |
| 3282 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3283 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3284 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3285 | for (i = 1, j = 1; i < symcount; ++i) |
| 3286 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3287 | != syms[i]->value + syms[i]->section->vma) | |
| 3288 | syms[j++] = syms[i]; | |
| 3289 | symcount = j; | |
| 3290 | } | |
| 3291 | ||
| 699733f6 | 3292 | i = 0; |
| cd285db5 AM |
3293 | /* Note that here and in compare_symbols we can't compare opd and |
| 3294 | sym->section directly. With separate debug info files, the | |
| 3295 | symbols will be extracted from the debug file while abfd passed | |
| 3296 | to this function is the real binary. */ | |
| 3297 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 699733f6 AM |
3298 | ++i; |
| 3299 | codesecsym = i; | |
| 90e3cdf2 | 3300 | |
| 699733f6 AM |
3301 | for (; i < symcount; ++i) |
| 3302 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3303 | != (SEC_CODE | SEC_ALLOC)) | |
| 3304 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3305 | break; | |
| 3306 | codesecsymend = i; | |
| 90e3cdf2 | 3307 | |
| 699733f6 AM |
3308 | for (; i < symcount; ++i) |
| 3309 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3310 | break; | |
| 3311 | secsymend = i; | |
| 90e3cdf2 | 3312 | |
| cd285db5 AM |
3313 | if (opd != NULL) |
| 3314 | for (; i < symcount; ++i) | |
| 3315 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3316 | break; | |
| 699733f6 | 3317 | opdsymend = i; |
| 90e3cdf2 | 3318 | |
| 699733f6 AM |
3319 | for (; i < symcount; ++i) |
| 3320 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3321 | != (SEC_CODE | SEC_ALLOC)) | |
| 3322 | break; | |
| 3323 | symcount = i; | |
| 3324 | ||
| c9727e01 | 3325 | count = 0; |
| 90e3cdf2 | 3326 | |
| 699733f6 | 3327 | if (relocatable) |
| 90e3cdf2 | 3328 | { |
| 699733f6 AM |
3329 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3330 | arelent *r; | |
| 3331 | size_t size; | |
| 3332 | long relcount; | |
| 90e3cdf2 | 3333 | |
| 468392fb AM |
3334 | if (opdsymend == secsymend) |
| 3335 | goto done; | |
| 3336 | ||
| 699733f6 | 3337 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3338 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3339 | if (relcount == 0) |
| c9727e01 | 3340 | goto done; |
| 90e3cdf2 | 3341 | |
| 7356fed5 AM |
3342 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3343 | { | |
| 3344 | count = -1; | |
| 3345 | goto done; | |
| 3346 | } | |
| 3347 | ||
| 699733f6 | 3348 | size = 0; |
| 595da8c5 | 3349 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3350 | { |
| 3351 | asymbol *sym; | |
| 90e3cdf2 | 3352 | |
| 595da8c5 | 3353 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3354 | && r->address < syms[i]->value + opd->vma) |
| 3355 | ++r; | |
| 90e3cdf2 | 3356 | |
| 595da8c5 | 3357 | if (r == opd->relocation + relcount) |
| 699733f6 | 3358 | break; |
| 90e3cdf2 | 3359 | |
| 699733f6 AM |
3360 | if (r->address != syms[i]->value + opd->vma) |
| 3361 | continue; | |
| 90e3cdf2 | 3362 | |
| 699733f6 AM |
3363 | if (r->howto->type != R_PPC64_ADDR64) |
| 3364 | continue; | |
| 90e3cdf2 | 3365 | |
| 699733f6 AM |
3366 | sym = *r->sym_ptr_ptr; |
| 3367 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3368 | sym->section->id, sym->value + r->addend)) | |
| 3369 | { | |
| 3370 | ++count; | |
| 3371 | size += sizeof (asymbol); | |
| 3372 | size += strlen (syms[i]->name) + 2; | |
| 3373 | } | |
| 3374 | } | |
| 90e3cdf2 | 3375 | |
| c4b0b099 AM |
3376 | if (size == 0) |
| 3377 | goto done; | |
| 699733f6 AM |
3378 | s = *ret = bfd_malloc (size); |
| 3379 | if (s == NULL) | |
| 3380 | { | |
| 7356fed5 | 3381 | count = -1; |
| c9727e01 | 3382 | goto done; |
| 699733f6 | 3383 | } |
| 90e3cdf2 | 3384 | |
| 699733f6 | 3385 | names = (char *) (s + count); |
| 90e3cdf2 | 3386 | |
| 595da8c5 | 3387 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3388 | { |
| 699733f6 | 3389 | asymbol *sym; |
| 90e3cdf2 | 3390 | |
| 595da8c5 | 3391 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3392 | && r->address < syms[i]->value + opd->vma) |
| 3393 | ++r; | |
| 90e3cdf2 | 3394 | |
| 595da8c5 | 3395 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3396 | break; |
| 3397 | ||
| 3398 | if (r->address != syms[i]->value + opd->vma) | |
| 3399 | continue; | |
| 3400 | ||
| 3401 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3402 | continue; | |
| 90e3cdf2 | 3403 | |
| 699733f6 AM |
3404 | sym = *r->sym_ptr_ptr; |
| 3405 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3406 | sym->section->id, sym->value + r->addend)) | |
| 3407 | { | |
| 3408 | size_t len; | |
| 3409 | ||
| 3410 | *s = *syms[i]; | |
| 6ba2a415 | 3411 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3412 | s->section = sym->section; |
| 3413 | s->value = sym->value + r->addend; | |
| 3414 | s->name = names; | |
| 3415 | *names++ = '.'; | |
| 3416 | len = strlen (syms[i]->name); | |
| 3417 | memcpy (names, syms[i]->name, len + 1); | |
| 3418 | names += len + 1; | |
| 6f610d07 UW |
3419 | /* Have udata.p point back to the original symbol this |
| 3420 | synthetic symbol was derived from. */ | |
| 3421 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3422 | s++; |
| 3423 | } | |
| 3424 | } | |
| 3425 | } | |
| 3426 | else | |
| 90e3cdf2 | 3427 | { |
| 468392fb | 3428 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3429 | bfd_byte *contents = NULL; |
| 699733f6 | 3430 | size_t size; |
| 468392fb AM |
3431 | long plt_count = 0; |
| 3432 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3433 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3434 | arelent *p; | |
| 90e3cdf2 | 3435 | |
| ee67d69a | 3436 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3437 | { |
| c4b0b099 AM |
3438 | free_contents_and_exit_err: |
| 3439 | count = -1; | |
| ee67d69a | 3440 | free_contents_and_exit: |
| 699733f6 | 3441 | if (contents) |
| ee67d69a | 3442 | free (contents); |
| c9727e01 | 3443 | goto done; |
| 699733f6 | 3444 | } |
| 90e3cdf2 | 3445 | |
| 699733f6 AM |
3446 | size = 0; |
| 3447 | for (i = secsymend; i < opdsymend; ++i) | |
| 3448 | { | |
| 3449 | bfd_vma ent; | |
| 90e3cdf2 | 3450 | |
| 5ef11c02 AM |
3451 | /* Ignore bogus symbols. */ |
| 3452 | if (syms[i]->value > opd->size - 8) | |
| 3453 | continue; | |
| 3454 | ||
| 699733f6 AM |
3455 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3456 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3457 | { | |
| 3458 | ++count; | |
| 3459 | size += sizeof (asymbol); | |
| 3460 | size += strlen (syms[i]->name) + 2; | |
| 3461 | } | |
| 3462 | } | |
| 90e3cdf2 | 3463 | |
| 468392fb | 3464 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3465 | if (dyn_count != 0 |
| 3466 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3467 | { |
| 3468 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3469 | size_t extdynsize; | |
| 3470 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3471 | ||
| 3472 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3473 | goto free_contents_and_exit_err; |
| 468392fb AM |
3474 | |
| 3475 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3476 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3477 | ||
| 3478 | extdyn = dynbuf; | |
| 3479 | extdynend = extdyn + dynamic->size; | |
| 3480 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3481 | { | |
| 3482 | Elf_Internal_Dyn dyn; | |
| 3483 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3484 | ||
| 3485 | if (dyn.d_tag == DT_NULL) | |
| 3486 | break; | |
| 3487 | ||
| 3488 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3489 | { | |
| b9e5796b AM |
3490 | /* The first glink stub starts at offset 32; see |
| 3491 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3492 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3493 | /* The .glink section usually does not survive the final |
| 3494 | link; search for the section (usually .text) where the | |
| 3495 | glink stubs now reside. */ | |
| 3496 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3497 | &glink_vma); | |
| 3498 | break; | |
| 3499 | } | |
| 3500 | } | |
| 3501 | ||
| 3502 | free (dynbuf); | |
| 3503 | } | |
| 3504 | ||
| 3505 | if (glink != NULL) | |
| 3506 | { | |
| 3507 | /* Determine __glink trampoline by reading the relative branch | |
| 3508 | from the first glink stub. */ | |
| 3509 | bfd_byte buf[4]; | |
| b9e5796b AM |
3510 | unsigned int off = 0; |
| 3511 | ||
| 3512 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3513 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3514 | { |
| 3515 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3516 | insn ^= B_DOT; | |
| 3517 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3518 | { |
| 3519 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3520 | break; | |
| 3521 | } | |
| 3522 | off += 4; | |
| 3523 | if (off > 4) | |
| 3524 | break; | |
| 468392fb AM |
3525 | } |
| 3526 | ||
| 3527 | if (resolv_vma) | |
| 3528 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3529 | |
| 066ee829 AM |
3530 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3531 | if (relplt != NULL) | |
| 3532 | { | |
| 3533 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3534 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3535 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3536 | |
| 066ee829 AM |
3537 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3538 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3539 | |
| 066ee829 AM |
3540 | p = relplt->relocation; |
| 3541 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3542 | { |
| 3543 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3544 | if (p->addend != 0) | |
| 3545 | size += sizeof ("+0x") - 1 + 16; | |
| 3546 | } | |
| 066ee829 | 3547 | } |
| 468392fb AM |
3548 | } |
| 3549 | ||
| c4b0b099 AM |
3550 | if (size == 0) |
| 3551 | goto free_contents_and_exit; | |
| 699733f6 AM |
3552 | s = *ret = bfd_malloc (size); |
| 3553 | if (s == NULL) | |
| c4b0b099 | 3554 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3555 | |
| 468392fb | 3556 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3557 | |
| 699733f6 | 3558 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3559 | { |
| 699733f6 | 3560 | bfd_vma ent; |
| 90e3cdf2 | 3561 | |
| 5ef11c02 AM |
3562 | if (syms[i]->value > opd->size - 8) |
| 3563 | continue; | |
| 3564 | ||
| 699733f6 AM |
3565 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3566 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3567 | { |
| c9727e01 | 3568 | long lo, hi; |
| 699733f6 | 3569 | size_t len; |
| c9727e01 | 3570 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3571 | |
| 699733f6 AM |
3572 | *s = *syms[i]; |
| 3573 | lo = codesecsym; | |
| 3574 | hi = codesecsymend; | |
| 3575 | while (lo < hi) | |
| 3576 | { | |
| c9727e01 | 3577 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3578 | if (syms[mid]->section->vma < ent) |
| 3579 | lo = mid + 1; | |
| 3580 | else if (syms[mid]->section->vma > ent) | |
| 3581 | hi = mid; | |
| 3582 | else | |
| c9727e01 AM |
3583 | { |
| 3584 | sec = syms[mid]->section; | |
| 3585 | break; | |
| 3586 | } | |
| 699733f6 AM |
3587 | } |
| 3588 | ||
| c9727e01 | 3589 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3590 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3591 | |
| 3592 | for (; sec != NULL; sec = sec->next) | |
| 3593 | { | |
| 3594 | if (sec->vma > ent) | |
| 3595 | break; | |
| 63524580 JK |
3596 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3597 | info file. */ | |
| 3598 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3599 | break; |
| 3600 | if ((sec->flags & SEC_CODE) != 0) | |
| 3601 | s->section = sec; | |
| 3602 | } | |
| 6ba2a415 | 3603 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3604 | s->value = ent - s->section->vma; |
| 3605 | s->name = names; | |
| 3606 | *names++ = '.'; | |
| 3607 | len = strlen (syms[i]->name); | |
| 3608 | memcpy (names, syms[i]->name, len + 1); | |
| 3609 | names += len + 1; | |
| 6f610d07 UW |
3610 | /* Have udata.p point back to the original symbol this |
| 3611 | synthetic symbol was derived from. */ | |
| 3612 | s->udata.p = syms[i]; | |
| 699733f6 | 3613 | s++; |
| 90e3cdf2 | 3614 | } |
| 90e3cdf2 | 3615 | } |
| 699733f6 | 3616 | free (contents); |
| 468392fb AM |
3617 | |
| 3618 | if (glink != NULL && relplt != NULL) | |
| 3619 | { | |
| 3620 | if (resolv_vma) | |
| 3621 | { | |
| 3622 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3623 | memset (s, 0, sizeof *s); |
| 468392fb | 3624 | s->the_bfd = abfd; |
| 6ba2a415 | 3625 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3626 | s->section = glink; |
| 3627 | s->value = resolv_vma - glink->vma; | |
| 3628 | s->name = names; | |
| 3629 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3630 | names += sizeof ("__glink_PLTresolve"); | |
| 3631 | s++; | |
| 3632 | count++; | |
| 3633 | } | |
| 3634 | ||
| 3635 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3636 | stub rather than on the glink branch table entry. The | |
| 3637 | objdump disassembler would then use a sensible symbol | |
| 3638 | name on plt calls. The difficulty in doing so is | |
| 3639 | a) finding the stubs, and, | |
| 3640 | b) matching stubs against plt entries, and, | |
| 3641 | c) there can be multiple stubs for a given plt entry. | |
| 3642 | ||
| 3643 | Solving (a) could be done by code scanning, but older | |
| 3644 | ppc64 binaries used different stubs to current code. | |
| 3645 | (b) is the tricky one since you need to known the toc | |
| 3646 | pointer for at least one function that uses a pic stub to | |
| 3647 | be able to calculate the plt address referenced. | |
| 3648 | (c) means gdb would need to set multiple breakpoints (or | |
| 3649 | find the glink branch itself) when setting breakpoints | |
| 3650 | for pending shared library loads. */ | |
| 3651 | p = relplt->relocation; | |
| 3652 | for (i = 0; i < plt_count; i++, p++) | |
| 3653 | { | |
| 3654 | size_t len; | |
| 3655 | ||
| 3656 | *s = **p->sym_ptr_ptr; | |
| 3657 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3658 | we are defining a symbol, ensure one of them is set. */ | |
| 3659 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3660 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3661 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3662 | s->section = glink; |
| 3663 | s->value = glink_vma - glink->vma; | |
| 3664 | s->name = names; | |
| 3665 | s->udata.p = NULL; | |
| 3666 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3667 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3668 | names += len; | |
| e054468f AM |
3669 | if (p->addend != 0) |
| 3670 | { | |
| 3671 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3672 | names += sizeof ("+0x") - 1; | |
| 3673 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3674 | names += strlen (names); | |
| 3675 | } | |
| 468392fb AM |
3676 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3677 | names += sizeof ("@plt"); | |
| 3678 | s++; | |
| b9e5796b AM |
3679 | if (abi < 2) |
| 3680 | { | |
| 3681 | glink_vma += 8; | |
| 3682 | if (i >= 0x8000) | |
| 3683 | glink_vma += 4; | |
| 3684 | } | |
| 3685 | else | |
| 468392fb AM |
3686 | glink_vma += 4; |
| 3687 | } | |
| 3688 | count += plt_count; | |
| 3689 | } | |
| 90e3cdf2 JJ |
3690 | } |
| 3691 | ||
| c9727e01 | 3692 | done: |
| a7535cf3 | 3693 | free (syms); |
| 90e3cdf2 JJ |
3694 | return count; |
| 3695 | } | |
| 5bd4f169 | 3696 | \f |
| 65f38f15 AM |
3697 | /* The following functions are specific to the ELF linker, while |
| 3698 | functions above are used generally. Those named ppc64_elf_* are | |
| 3699 | called by the main ELF linker code. They appear in this file more | |
| 3700 | or less in the order in which they are called. eg. | |
| 3701 | ppc64_elf_check_relocs is called early in the link process, | |
| 3702 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3703 | called. |
| 3704 | ||
| 3705 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3706 | functions have both a function code symbol and a function descriptor | |
| 3707 | symbol. A call to foo in a relocatable object file looks like: | |
| 3708 | ||
| 3709 | . .text | |
| 3710 | . x: | |
| 3711 | . bl .foo | |
| 3712 | . nop | |
| 3713 | ||
| 3714 | The function definition in another object file might be: | |
| 3715 | ||
| 3716 | . .section .opd | |
| 3717 | . foo: .quad .foo | |
| 3718 | . .quad .TOC.@tocbase | |
| 3719 | . .quad 0 | |
| 3720 | . | |
| 3721 | . .text | |
| 3722 | . .foo: blr | |
| 3723 | ||
| 3724 | When the linker resolves the call during a static link, the branch | |
| 3725 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3726 | If the function definition is in a shared library, things are a little | |
| 3727 | different: The call goes via a plt call stub, the opd information gets | |
| 3728 | copied to the plt, and the linker patches the nop. | |
| 3729 | ||
| 3730 | . x: | |
| 3731 | . bl .foo_stub | |
| 3732 | . ld 2,40(1) | |
| 3733 | . | |
| 3734 | . | |
| 3735 | . .foo_stub: | |
| 71a39c98 AM |
3736 | . std 2,40(1) # in practice, the call stub |
| 3737 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3738 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3739 | . ld 12,0(11) | |
| 3740 | . ld 2,8(11) | |
| 3741 | . mtctr 12 | |
| 3742 | . ld 11,16(11) | |
| e86ce104 AM |
3743 | . bctr |
| 3744 | . | |
| 3745 | . .section .plt | |
| 3746 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3747 | ||
| 3748 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3749 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3750 | copying. | |
| 3751 | ||
| 3752 | What are the difficulties here? Well, firstly, the relocations | |
| 3753 | examined by the linker in check_relocs are against the function code | |
| 3754 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3755 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3756 | to carefully copy dynamic link information from one symbol to the other. | |
| 3757 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3758 | symbol as is normal for most other backends. We need foo dynamic | |
| 3759 | instead, at least for an application final link. However, when | |
| 3760 | creating a shared library containing foo, we need to have both symbols | |
| 3761 | dynamic so that references to .foo are satisfied during the early | |
| 3762 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3763 | definition from some other object, eg. a static library. |
| 3764 | ||
| 3765 | Update: As of August 2004, we support a new convention. Function | |
| 3766 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3767 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3768 | |
| 1d483afe | 3769 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3770 | selects those that must be copied when linking a shared library, |
| 3771 | even when the symbol is local. */ | |
| 65f38f15 | 3772 | |
| 1d483afe AM |
3773 | static int |
| 3774 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3775 | enum elf_ppc64_reloc_type r_type) | |
| 3776 | { | |
| 3777 | switch (r_type) | |
| 3778 | { | |
| 3779 | default: | |
| 3780 | return 1; | |
| 3781 | ||
| 3782 | case R_PPC64_REL32: | |
| 3783 | case R_PPC64_REL64: | |
| 3784 | case R_PPC64_REL30: | |
| 3785 | return 0; | |
| 3786 | ||
| 3787 | case R_PPC64_TPREL16: | |
| 3788 | case R_PPC64_TPREL16_LO: | |
| 3789 | case R_PPC64_TPREL16_HI: | |
| 3790 | case R_PPC64_TPREL16_HA: | |
| 3791 | case R_PPC64_TPREL16_DS: | |
| 3792 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3793 | case R_PPC64_TPREL16_HIGH: |
| 3794 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3795 | case R_PPC64_TPREL16_HIGHER: |
| 3796 | case R_PPC64_TPREL16_HIGHERA: | |
| 3797 | case R_PPC64_TPREL16_HIGHEST: | |
| 3798 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3799 | case R_PPC64_TPREL64: | |
| 0e1862bb | 3800 | return !bfd_link_executable (info); |
| 1d483afe AM |
3801 | } |
| 3802 | } | |
| 65f38f15 | 3803 | |
| f4656909 AM |
3804 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3805 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3806 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3807 | shared lib. With code that gcc generates, it's vital that this be |
| 3808 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3809 | the address of a function descriptor, which resides in the .opd | |
| 3810 | section. gcc uses the descriptor directly rather than going via the | |
| 3811 | GOT as some other ABI's do, which means that initialized function | |
| 3812 | pointers must reference the descriptor. Thus, a function pointer | |
| 3813 | initialized to the address of a function in a shared library will | |
| 3814 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3815 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3816 | presents a problem as a plt entry for that function is also |
| 3817 | initialized from the function descriptor symbol and the copy reloc | |
| 3818 | may not be initialized first. */ | |
| a23b6845 | 3819 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3820 | |
| 721956f4 | 3821 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3822 | string. */ |
| 3823 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3824 | |
| 3825 | /* Linker stubs. | |
| 3826 | ppc_stub_long_branch: | |
| 3827 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3828 | destination, but a 24 bit branch in a stub section will reach. | |
| 3829 | . b dest | |
| 3830 | ||
| 3831 | ppc_stub_plt_branch: | |
| 3832 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3833 | reach its destination. | |
| 71a39c98 AM |
3834 | . addis %r11,%r2,xxx@toc@ha |
| 3835 | . ld %r12,xxx@toc@l(%r11) | |
| 3836 | . mtctr %r12 | |
| 721956f4 AM |
3837 | . bctr |
| 3838 | ||
| 3839 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3840 | Used to call a function in a shared library. If it so happens that |
| 3841 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3842 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3843 | . std %r2,40(%r1) |
| 71a39c98 AM |
3844 | . addis %r11,%r2,xxx@toc@ha |
| 3845 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3846 | . mtctr %r12 | |
| 3847 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3848 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3849 | . bctr |
| ad8e1ba5 AM |
3850 | |
| 3851 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3852 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3853 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3854 | . std %r2,40(%r1) | |
| 3855 | . addis %r2,%r2,off@ha | |
| 3856 | . addi %r2,%r2,off@l | |
| 3857 | . b dest | |
| 3858 | ||
| 3859 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3860 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3861 | . addis %r11,%r2,xxx@toc@ha |
| 3862 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3863 | . addis %r2,%r2,off@ha |
| 3864 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3865 | . mtctr %r12 |
| ad8e1ba5 | 3866 | . bctr |
| ac2df442 AM |
3867 | |
| 3868 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3869 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3870 | */ |
| 3871 | ||
| 3872 | enum ppc_stub_type { | |
| 3873 | ppc_stub_none, | |
| 3874 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3875 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3876 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3877 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3878 | ppc_stub_plt_call, |
| 7341d5e2 | 3879 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3880 | ppc_stub_global_entry, |
| 3881 | ppc_stub_save_res | |
| 721956f4 AM |
3882 | }; |
| 3883 | ||
| 6f20ed8a AM |
3884 | /* Information on stub grouping. */ |
| 3885 | struct map_stub | |
| 3886 | { | |
| 3887 | /* The stub section. */ | |
| 3888 | asection *stub_sec; | |
| 3889 | /* This is the section to which stubs in the group will be attached. */ | |
| 3890 | asection *link_sec; | |
| a4b6fadd AM |
3891 | /* Next group. */ |
| 3892 | struct map_stub *next; | |
| 3893 | /* Whether to emit a copy of register save/restore functions in this | |
| 3894 | group. */ | |
| 3895 | int needs_save_res; | |
| 6f20ed8a AM |
3896 | }; |
| 3897 | ||
| 721956f4 AM |
3898 | struct ppc_stub_hash_entry { |
| 3899 | ||
| 3900 | /* Base hash table entry structure. */ | |
| 3901 | struct bfd_hash_entry root; | |
| 3902 | ||
| ad8e1ba5 AM |
3903 | enum ppc_stub_type stub_type; |
| 3904 | ||
| 6f20ed8a AM |
3905 | /* Group information. */ |
| 3906 | struct map_stub *group; | |
| 721956f4 AM |
3907 | |
| 3908 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3909 | bfd_vma stub_offset; | |
| 3910 | ||
| 3911 | /* Given the symbol's value and its section we can determine its final | |
| 3912 | value when building the stubs (so the stub knows where to jump. */ | |
| 3913 | bfd_vma target_value; | |
| 3914 | asection *target_section; | |
| 3915 | ||
| 721956f4 AM |
3916 | /* The symbol table entry, if any, that this was derived from. */ |
| 3917 | struct ppc_link_hash_entry *h; | |
| e054468f | 3918 | struct plt_entry *plt_ent; |
| 721956f4 | 3919 | |
| 6911b7dc AM |
3920 | /* Symbol st_other. */ |
| 3921 | unsigned char other; | |
| 721956f4 AM |
3922 | }; |
| 3923 | ||
| 3924 | struct ppc_branch_hash_entry { | |
| 3925 | ||
| 3926 | /* Base hash table entry structure. */ | |
| 3927 | struct bfd_hash_entry root; | |
| 3928 | ||
| c456f082 | 3929 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3930 | unsigned int offset; |
| 3931 | ||
| 3932 | /* Generation marker. */ | |
| 3933 | unsigned int iter; | |
| 3934 | }; | |
| 65f38f15 | 3935 | |
| 19e08130 AM |
3936 | /* Used to track dynamic relocations for local symbols. */ |
| 3937 | struct ppc_dyn_relocs | |
| 3938 | { | |
| 3939 | struct ppc_dyn_relocs *next; | |
| 3940 | ||
| 3941 | /* The input section of the reloc. */ | |
| 3942 | asection *sec; | |
| 3943 | ||
| 3944 | /* Total number of relocs copied for the input section. */ | |
| 3945 | unsigned int count : 31; | |
| 3946 | ||
| 3947 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3948 | unsigned int ifunc : 1; | |
| 3949 | }; | |
| 3950 | ||
| 65f38f15 AM |
3951 | struct ppc_link_hash_entry |
| 3952 | { | |
| 3953 | struct elf_link_hash_entry elf; | |
| 3954 | ||
| b3fac117 AM |
3955 | union { |
| 3956 | /* A pointer to the most recently used stub hash entry against this | |
| 3957 | symbol. */ | |
| 3958 | struct ppc_stub_hash_entry *stub_cache; | |
| 3959 | ||
| 3960 | /* A pointer to the next symbol starting with a '.' */ | |
| 3961 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3962 | } u; | |
| 721956f4 | 3963 | |
| 65f38f15 | 3964 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3965 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3966 | |
| d311bc8b AM |
3967 | /* Chain of aliases referring to a weakdef. */ |
| 3968 | struct ppc_link_hash_entry *weakref; | |
| 3969 | ||
| 721956f4 | 3970 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3971 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3972 | |
| e86ce104 AM |
3973 | /* Flag function code and descriptor symbols. */ |
| 3974 | unsigned int is_func:1; | |
| 3975 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3976 | unsigned int fake:1; |
| 411e1bfb | 3977 | |
| c5614fa4 AM |
3978 | /* Whether global opd/toc sym has been adjusted or not. |
| 3979 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3980 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3981 | unsigned int adjust_done:1; |
| 3982 | ||
| a4b6fadd AM |
3983 | /* Set if this is an out-of-line register save/restore function, |
| 3984 | with non-standard calling convention. */ | |
| 3985 | unsigned int save_res:1; | |
| 3986 | ||
| 411e1bfb | 3987 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3988 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3989 | corresponding relocs are encountered during check_relocs. | |
| 3990 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3991 | indicate the corresponding GOT entry type is not needed. | |
| 3992 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3993 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3994 | just for convenience in distinguishing the two cases. */ | |
| 3995 | #define TLS_GD 1 /* GD reloc. */ | |
| 3996 | #define TLS_LD 2 /* LD reloc. */ | |
| 3997 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3998 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3999 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4000 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4001 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4002 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4003 | unsigned char tls_mask; |
| 65f38f15 AM |
4004 | }; |
| 4005 | ||
| 4006 | /* ppc64 ELF linker hash table. */ | |
| 4007 | ||
| 4008 | struct ppc_link_hash_table | |
| 4009 | { | |
| 4010 | struct elf_link_hash_table elf; | |
| 4011 | ||
| 721956f4 AM |
4012 | /* The stub hash table. */ |
| 4013 | struct bfd_hash_table stub_hash_table; | |
| 4014 | ||
| 4015 | /* Another hash table for plt_branch stubs. */ | |
| 4016 | struct bfd_hash_table branch_hash_table; | |
| 4017 | ||
| 3b421ab3 AM |
4018 | /* Hash table for function prologue tocsave. */ |
| 4019 | htab_t tocsave_htab; | |
| 4020 | ||
| e7d1c40c AM |
4021 | /* Various options and other info passed from the linker. */ |
| 4022 | struct ppc64_elf_params *params; | |
| 721956f4 | 4023 | |
| 6f20ed8a AM |
4024 | /* The size of sec_info below. */ |
| 4025 | unsigned int sec_info_arr_size; | |
| 4026 | ||
| 4027 | /* Per-section array of extra section info. Done this way rather | |
| 4028 | than as part of ppc64_elf_section_data so we have the info for | |
| 4029 | non-ppc64 sections. */ | |
| 4030 | struct | |
| 4031 | { | |
| 4032 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4033 | bfd_vma toc_off; |
| 6f20ed8a AM |
4034 | |
| 4035 | union | |
| 4036 | { | |
| 4037 | /* The section group that this section belongs to. */ | |
| 4038 | struct map_stub *group; | |
| 4039 | /* A temp section list pointer. */ | |
| 4040 | asection *list; | |
| 4041 | } u; | |
| 4042 | } *sec_info; | |
| 721956f4 | 4043 | |
| a4b6fadd AM |
4044 | /* Linked list of groups. */ |
| 4045 | struct map_stub *group; | |
| 4046 | ||
| ad8e1ba5 AM |
4047 | /* Temp used when calculating TOC pointers. */ |
| 4048 | bfd_vma toc_curr; | |
| bf102f86 AM |
4049 | bfd *toc_bfd; |
| 4050 | asection *toc_first_sec; | |
| ad8e1ba5 | 4051 | |
| b3fac117 AM |
4052 | /* Used when adding symbols. */ |
| 4053 | struct ppc_link_hash_entry *dot_syms; | |
| 4054 | ||
| 33e44f2e | 4055 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 AM |
4056 | asection *dynbss; |
| 4057 | asection *relbss; | |
| 4058 | asection *glink; | |
| 82bd7b59 | 4059 | asection *sfpr; |
| 4ce794b7 AM |
4060 | asection *brlt; |
| 4061 | asection *relbrlt; | |
| 58d180e8 | 4062 | asection *glink_eh_frame; |
| ec338859 | 4063 | |
| 8387904d AM |
4064 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4065 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4066 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4067 | |
| 927be08e AM |
4068 | /* The size of reliplt used by got entry relocs. */ |
| 4069 | bfd_size_type got_reli_size; | |
| 4070 | ||
| 9b5ecbd0 | 4071 | /* Statistics. */ |
| 7341d5e2 | 4072 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4073 | |
| ee75fd95 AM |
4074 | /* Number of stubs against global syms. */ |
| 4075 | unsigned long stub_globals; | |
| 4076 | ||
| ee67d69a AM |
4077 | /* Set if we're linking code with function descriptors. */ |
| 4078 | unsigned int opd_abi:1; | |
| 4079 | ||
| 4c52953f | 4080 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4081 | unsigned int do_multi_toc:1; |
| 4c52953f | 4082 | unsigned int multi_toc_needed:1; |
| 927be08e | 4083 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4084 | unsigned int do_toc_opt:1; |
| 4c52953f | 4085 | |
| 5d1634d7 | 4086 | /* Set on error. */ |
| 99877b66 | 4087 | unsigned int stub_error:1; |
| 721956f4 | 4088 | |
| 8c5b4e52 AM |
4089 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4090 | unsigned int need_func_desc_adj:1; | |
| 721956f4 AM |
4091 | |
| 4092 | /* Incremented every time we size stubs. */ | |
| 4093 | unsigned int stub_iteration; | |
| 5d1634d7 | 4094 | |
| 87d72d41 AM |
4095 | /* Small local sym cache. */ |
| 4096 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4097 | }; |
| 4098 | ||
| 4c52953f AM |
4099 | /* Rename some of the generic section flags to better document how they |
| 4100 | are used here. */ | |
| b0dddeec AM |
4101 | |
| 4102 | /* Nonzero if this section has TLS related relocations. */ | |
| 4103 | #define has_tls_reloc sec_flg0 | |
| 4104 | ||
| 4105 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4106 | #define has_tls_get_addr_call sec_flg1 | |
| 4107 | ||
| 4108 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4109 | #define has_toc_reloc sec_flg2 | |
| 4110 | ||
| 4111 | /* Nonzero if this section has a call to another section that uses | |
| 4112 | the toc or got. */ | |
| d77c8a4b | 4113 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4114 | |
| 4115 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4116 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4117 | #define call_check_done sec_flg5 |
| 4c52953f | 4118 | |
| 65f38f15 AM |
4119 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4120 | ||
| 4121 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4122 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4123 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4124 | |
| 721956f4 AM |
4125 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4126 | ((struct ppc_stub_hash_entry *) \ | |
| 4127 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4128 | ||
| 4129 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4130 | ((struct ppc_branch_hash_entry *) \ | |
| 4131 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4132 | ||
| 4133 | /* Create an entry in the stub hash table. */ | |
| 4134 | ||
| 4135 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4136 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4137 | struct bfd_hash_table *table, | |
| 4138 | const char *string) | |
| 721956f4 AM |
4139 | { |
| 4140 | /* Allocate the structure if it has not already been allocated by a | |
| 4141 | subclass. */ | |
| 4142 | if (entry == NULL) | |
| 4143 | { | |
| 4144 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4145 | if (entry == NULL) | |
| 4146 | return entry; | |
| 4147 | } | |
| 4148 | ||
| 4149 | /* Call the allocation method of the superclass. */ | |
| 4150 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4151 | if (entry != NULL) | |
| 4152 | { | |
| 4153 | struct ppc_stub_hash_entry *eh; | |
| 4154 | ||
| 4155 | /* Initialize the local fields. */ | |
| 4156 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4157 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4158 | eh->group = NULL; |
| 721956f4 AM |
4159 | eh->stub_offset = 0; |
| 4160 | eh->target_value = 0; | |
| 4161 | eh->target_section = NULL; | |
| 721956f4 | 4162 | eh->h = NULL; |
| 6911b7dc | 4163 | eh->plt_ent = NULL; |
| 6911b7dc | 4164 | eh->other = 0; |
| 721956f4 AM |
4165 | } |
| 4166 | ||
| 4167 | return entry; | |
| 4168 | } | |
| 4169 | ||
| 4170 | /* Create an entry in the branch hash table. */ | |
| 4171 | ||
| 4172 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4173 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4174 | struct bfd_hash_table *table, | |
| 4175 | const char *string) | |
| 721956f4 AM |
4176 | { |
| 4177 | /* Allocate the structure if it has not already been allocated by a | |
| 4178 | subclass. */ | |
| 4179 | if (entry == NULL) | |
| 4180 | { | |
| 4181 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4182 | if (entry == NULL) | |
| 4183 | return entry; | |
| 4184 | } | |
| 4185 | ||
| 4186 | /* Call the allocation method of the superclass. */ | |
| 4187 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4188 | if (entry != NULL) | |
| 4189 | { | |
| 4190 | struct ppc_branch_hash_entry *eh; | |
| 4191 | ||
| 4192 | /* Initialize the local fields. */ | |
| 4193 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4194 | eh->offset = 0; | |
| 4195 | eh->iter = 0; | |
| 4196 | } | |
| 4197 | ||
| 4198 | return entry; | |
| 4199 | } | |
| 4200 | ||
| 65f38f15 AM |
4201 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4202 | ||
| 4203 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4204 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4205 | struct bfd_hash_table *table, | |
| 4206 | const char *string) | |
| 65f38f15 AM |
4207 | { |
| 4208 | /* Allocate the structure if it has not already been allocated by a | |
| 4209 | subclass. */ | |
| 4210 | if (entry == NULL) | |
| 4211 | { | |
| 4212 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4213 | if (entry == NULL) | |
| 4214 | return entry; | |
| 4215 | } | |
| 4216 | ||
| 4217 | /* Call the allocation method of the superclass. */ | |
| 4218 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4219 | if (entry != NULL) | |
| 4220 | { | |
| 4221 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4222 | ||
| b3fac117 | 4223 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4224 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4225 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4226 | ||
| 4227 | /* When making function calls, old ABI code references function entry | |
| 4228 | points (dot symbols), while new ABI code references the function | |
| 4229 | descriptor symbol. We need to make any combination of reference and | |
| 4230 | definition work together, without breaking archive linking. | |
| 4231 | ||
| 4232 | For a defined function "foo" and an undefined call to "bar": | |
| 4233 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4234 | "bar" too). | |
| 4235 | A new object defines "foo" and references "bar". | |
| 4236 | ||
| 4237 | A new object thus has no problem with its undefined symbols being | |
| 4238 | satisfied by definitions in an old object. On the other hand, the | |
| 4239 | old object won't have ".bar" satisfied by a new object. | |
| 4240 | ||
| 4241 | Keep a list of newly added dot-symbols. */ | |
| 4242 | ||
| 4243 | if (string[0] == '.') | |
| 4244 | { | |
| 4245 | struct ppc_link_hash_table *htab; | |
| 4246 | ||
| 4247 | htab = (struct ppc_link_hash_table *) table; | |
| 4248 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4249 | htab->dot_syms = eh; | |
| 4250 | } | |
| 65f38f15 AM |
4251 | } |
| 4252 | ||
| 4253 | return entry; | |
| 4254 | } | |
| 4255 | ||
| 3b421ab3 AM |
4256 | struct tocsave_entry { |
| 4257 | asection *sec; | |
| 4258 | bfd_vma offset; | |
| 4259 | }; | |
| 4260 | ||
| 4261 | static hashval_t | |
| 4262 | tocsave_htab_hash (const void *p) | |
| 4263 | { | |
| 4264 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4265 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4266 | } | |
| 4267 | ||
| 4268 | static int | |
| 4269 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4270 | { | |
| 4271 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4272 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4273 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4274 | } | |
| 4275 | ||
| 68faa637 AM |
4276 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4277 | ||
| 4278 | static void | |
| d495ab0d | 4279 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4280 | { |
| d495ab0d | 4281 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4282 | |
| d495ab0d | 4283 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4284 | if (htab->tocsave_htab) |
| 4285 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4286 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4287 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4288 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4289 | } |
| 4290 | ||
| 65f38f15 AM |
4291 | /* Create a ppc64 ELF linker hash table. */ |
| 4292 | ||
| 4293 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4294 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4295 | { |
| 4296 | struct ppc_link_hash_table *htab; | |
| 4297 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4298 | ||
| 4ce794b7 | 4299 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4300 | if (htab == NULL) |
| 4301 | return NULL; | |
| 4302 | ||
| 66eb6687 | 4303 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4304 | sizeof (struct ppc_link_hash_entry), |
| 4305 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4306 | { |
| e2d34d7d | 4307 | free (htab); |
| 65f38f15 AM |
4308 | return NULL; |
| 4309 | } | |
| 4310 | ||
| 721956f4 | 4311 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4312 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4313 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4314 | { |
| d495ab0d | 4315 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4316 | return NULL; |
| 4317 | } | |
| 721956f4 AM |
4318 | |
| 4319 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4320 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4321 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4322 | { |
| 4323 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4324 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4325 | return NULL; |
| 4326 | } | |
| 721956f4 | 4327 | |
| 3b421ab3 AM |
4328 | htab->tocsave_htab = htab_try_create (1024, |
| 4329 | tocsave_htab_hash, | |
| 4330 | tocsave_htab_eq, | |
| 4331 | NULL); | |
| 4332 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4333 | { |
| d495ab0d | 4334 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4335 | return NULL; |
| 4336 | } | |
| d495ab0d | 4337 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4338 | |
| 3254fd24 AM |
4339 | /* Initializing two fields of the union is just cosmetic. We really |
| 4340 | only care about glist, but when compiled on a 32-bit host the | |
| 4341 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4342 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4343 | htab->elf.init_got_refcount.refcount = 0; |
| 4344 | htab->elf.init_got_refcount.glist = NULL; | |
| 4345 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4346 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4347 | htab->elf.init_got_offset.offset = 0; | |
| 4348 | htab->elf.init_got_offset.glist = NULL; | |
| 4349 | htab->elf.init_plt_offset.offset = 0; | |
| 4350 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4351 | |
| 65f38f15 AM |
4352 | return &htab->elf.root; |
| 4353 | } | |
| 4354 | ||
| bfeb4a28 AM |
4355 | /* Create sections for linker generated code. */ |
| 4356 | ||
| 4357 | static bfd_boolean | |
| 4358 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4359 | { | |
| 4360 | struct ppc_link_hash_table *htab; | |
| 4361 | flagword flags; | |
| 4362 | ||
| 4363 | htab = ppc_hash_table (info); | |
| 4364 | ||
| bfeb4a28 AM |
4365 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4366 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4367 | if (htab->params->save_restore_funcs) |
| 4368 | { | |
| 4369 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4370 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4371 | flags); | |
| 4372 | if (htab->sfpr == NULL | |
| 4373 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4374 | return FALSE; | |
| 4375 | } | |
| 4376 | ||
| 4377 | if (bfd_link_relocatable (info)) | |
| 4378 | return TRUE; | |
| bfeb4a28 AM |
4379 | |
| 4380 | /* Create .glink for lazy dynamic linking support. */ | |
| 4381 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4382 | flags); | |
| 4383 | if (htab->glink == NULL | |
| 4384 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4385 | return FALSE; | |
| 4386 | ||
| 4387 | if (!info->no_ld_generated_unwind_info) | |
| 4388 | { | |
| 4389 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4390 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4391 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4392 | ".eh_frame", | |
| 4393 | flags); | |
| 4394 | if (htab->glink_eh_frame == NULL | |
| 4395 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4396 | return FALSE; | |
| 4397 | } | |
| 4398 | ||
| 4399 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4400 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4401 | if (htab->elf.iplt == NULL | |
| 4402 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4403 | return FALSE; |
| 4404 | ||
| 4405 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4406 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4407 | htab->elf.irelplt |
| 4408 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4409 | if (htab->elf.irelplt == NULL | |
| 4410 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4411 | return FALSE; |
| 4412 | ||
| 4413 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4414 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4415 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4416 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4417 | flags); | |
| 4418 | if (htab->brlt == NULL | |
| 4419 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4420 | return FALSE; | |
| 4421 | ||
| 0e1862bb | 4422 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4423 | return TRUE; |
| 4424 | ||
| 4425 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4426 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4427 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4428 | ".rela.branch_lt", | |
| 4429 | flags); | |
| 4430 | if (htab->relbrlt == NULL | |
| 4431 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4432 | return FALSE; | |
| 4433 | ||
| 4434 | return TRUE; | |
| 4435 | } | |
| 4436 | ||
| e717da7e AM |
4437 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4438 | ||
| bfeb4a28 | 4439 | bfd_boolean |
| e7d1c40c AM |
4440 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4441 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4442 | { |
| 4443 | struct ppc_link_hash_table *htab; | |
| 4444 | ||
| e7d1c40c | 4445 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4446 | |
| 4447 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4448 | linker created stub bfd. This ensures that the GOT header is at | |
| 4449 | the start of the output TOC section. */ | |
| 4450 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4451 | htab->elf.dynobj = params->stub_bfd; |
| 4452 | htab->params = params; | |
| bfeb4a28 | 4453 | |
| bfeb4a28 | 4454 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4455 | } |
| 4456 | ||
| 721956f4 AM |
4457 | /* Build a name for an entry in the stub hash table. */ |
| 4458 | ||
| 4459 | static char * | |
| 4ce794b7 AM |
4460 | ppc_stub_name (const asection *input_section, |
| 4461 | const asection *sym_sec, | |
| 4462 | const struct ppc_link_hash_entry *h, | |
| 4463 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4464 | { |
| 4465 | char *stub_name; | |
| bcaa2f82 | 4466 | ssize_t len; |
| 721956f4 AM |
4467 | |
| 4468 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4469 | offsets from a sym as a branch target? In fact, we could | |
| 4470 | probably assume the addend is always zero. */ | |
| 4471 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4472 | ||
| 4473 | if (h) | |
| 4474 | { | |
| 4475 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4476 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4477 | if (stub_name == NULL) |
| 4478 | return stub_name; | |
| 4479 | ||
| bcaa2f82 AM |
4480 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4481 | input_section->id & 0xffffffff, | |
| 4482 | h->elf.root.root.string, | |
| 4483 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4484 | } |
| 4485 | else | |
| 4486 | { | |
| ad8e1ba5 | 4487 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4488 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4489 | if (stub_name == NULL) |
| 4490 | return stub_name; | |
| 4491 | ||
| bcaa2f82 AM |
4492 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4493 | input_section->id & 0xffffffff, | |
| 4494 | sym_sec->id & 0xffffffff, | |
| 4495 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4496 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4497 | } |
| bcaa2f82 | 4498 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4499 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4500 | return stub_name; |
| 4501 | } | |
| 4502 | ||
| 4503 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4504 | creating the stub name takes a bit of time. */ | |
| 4505 | ||
| 4506 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4507 | ppc_get_stub_entry (const asection *input_section, |
| 4508 | const asection *sym_sec, | |
| 039b3fef | 4509 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4510 | const Elf_Internal_Rela *rel, |
| 4511 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4512 | { |
| 4513 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4514 | struct map_stub *group; |
| 721956f4 AM |
4515 | |
| 4516 | /* If this input section is part of a group of sections sharing one | |
| 4517 | stub section, then use the id of the first section in the group. | |
| 4518 | Stub names need to include a section id, as there may well be | |
| 4519 | more than one stub used to reach say, printf, and we need to | |
| 4520 | distinguish between them. */ | |
| 6f20ed8a | 4521 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4522 | if (group == NULL) |
| 4523 | return NULL; | |
| 721956f4 | 4524 | |
| b3fac117 AM |
4525 | if (h != NULL && h->u.stub_cache != NULL |
| 4526 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4527 | && h->u.stub_cache->group == group) |
| 721956f4 | 4528 | { |
| b3fac117 | 4529 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4530 | } |
| 4531 | else | |
| 4532 | { | |
| 4533 | char *stub_name; | |
| 4534 | ||
| 6f20ed8a | 4535 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4536 | if (stub_name == NULL) |
| 4537 | return NULL; | |
| 4538 | ||
| 4539 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4540 | stub_name, FALSE, FALSE); |
| 721956f4 | 4541 | if (h != NULL) |
| b3fac117 | 4542 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4543 | |
| 4544 | free (stub_name); | |
| 4545 | } | |
| 4546 | ||
| 4547 | return stub_entry; | |
| 4548 | } | |
| 4549 | ||
| 4550 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4551 | stub entry are initialised. */ | |
| 4552 | ||
| 4553 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4554 | ppc_add_stub (const char *stub_name, |
| 4555 | asection *section, | |
| 25f53a85 | 4556 | struct bfd_link_info *info) |
| 721956f4 | 4557 | { |
| 25f53a85 | 4558 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4559 | struct map_stub *group; |
| 721956f4 AM |
4560 | asection *link_sec; |
| 4561 | asection *stub_sec; | |
| 4562 | struct ppc_stub_hash_entry *stub_entry; | |
| 4563 | ||
| 6f20ed8a AM |
4564 | group = htab->sec_info[section->id].u.group; |
| 4565 | link_sec = group->link_sec; | |
| 4566 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4567 | if (stub_sec == NULL) |
| 4568 | { | |
| 6f20ed8a AM |
4569 | size_t namelen; |
| 4570 | bfd_size_type len; | |
| 4571 | char *s_name; | |
| 721956f4 | 4572 | |
| 6f20ed8a AM |
4573 | namelen = strlen (link_sec->name); |
| 4574 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4575 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4576 | if (s_name == NULL) | |
| 4577 | return NULL; | |
| 721956f4 | 4578 | |
| 6f20ed8a AM |
4579 | memcpy (s_name, link_sec->name, namelen); |
| 4580 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4581 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4582 | if (stub_sec == NULL) | |
| 4583 | return NULL; | |
| 4584 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4585 | } |
| 4586 | ||
| 4587 | /* Enter this entry into the linker stub hash table. */ | |
| 4588 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4589 | TRUE, FALSE); |
| 721956f4 AM |
4590 | if (stub_entry == NULL) |
| 4591 | { | |
| 695344c0 | 4592 | /* xgettext:c-format */ |
| 8de848d8 | 4593 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4594 | section->owner, stub_name); |
| 721956f4 AM |
4595 | return NULL; |
| 4596 | } | |
| 4597 | ||
| 6f20ed8a | 4598 | stub_entry->group = group; |
| 721956f4 | 4599 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4600 | return stub_entry; |
| 4601 | } | |
| 4602 | ||
| e717da7e AM |
4603 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4604 | not already done. */ | |
| 65f38f15 | 4605 | |
| b34976b6 | 4606 | static bfd_boolean |
| e717da7e | 4607 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4608 | { |
| e717da7e AM |
4609 | asection *got, *relgot; |
| 4610 | flagword flags; | |
| 4611 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4612 | |
| 0c8d6e5c | 4613 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4614 | return FALSE; |
| 4dfe6ac6 NC |
4615 | if (htab == NULL) |
| 4616 | return FALSE; | |
| 0ffa91dd | 4617 | |
| 33e44f2e AM |
4618 | if (!htab->elf.sgot |
| 4619 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4620 | return FALSE; | |
| e717da7e AM |
4621 | |
| 4622 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4623 | | SEC_LINKER_CREATED); | |
| 4624 | ||
| c456f082 | 4625 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4626 | if (!got |
| e717da7e AM |
4627 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4628 | return FALSE; | |
| 65f38f15 | 4629 | |
| c456f082 AM |
4630 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4631 | flags | SEC_READONLY); | |
| e717da7e | 4632 | if (!relgot |
| e717da7e | 4633 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4634 | return FALSE; |
| e717da7e AM |
4635 | |
| 4636 | ppc64_elf_tdata (abfd)->got = got; | |
| 4637 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4638 | return TRUE; |
| 65f38f15 | 4639 | } |
| 5bd4f169 | 4640 | |
| 82bd7b59 | 4641 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4642 | |
| b34976b6 | 4643 | static bfd_boolean |
| 4ce794b7 | 4644 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4645 | { |
| 65f38f15 | 4646 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4647 | |
| 65f38f15 | 4648 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4649 | return FALSE; |
| 65f38f15 | 4650 | |
| e717da7e | 4651 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4652 | if (htab == NULL) |
| 4653 | return FALSE; | |
| 4654 | ||
| 3d4d4302 | 4655 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
| 0e1862bb | 4656 | if (!bfd_link_pic (info)) |
| 3d4d4302 | 4657 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4658 | |
| 33e44f2e | 4659 | if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss |
| 0e1862bb | 4660 | || (!bfd_link_pic (info) && !htab->relbss)) |
| 65f38f15 AM |
4661 | abort (); |
| 4662 | ||
| b34976b6 | 4663 | return TRUE; |
| 5bd4f169 AM |
4664 | } |
| 4665 | ||
| b31867b6 AM |
4666 | /* Follow indirect and warning symbol links. */ |
| 4667 | ||
| 4668 | static inline struct bfd_link_hash_entry * | |
| 4669 | follow_link (struct bfd_link_hash_entry *h) | |
| 4670 | { | |
| 4671 | while (h->type == bfd_link_hash_indirect | |
| 4672 | || h->type == bfd_link_hash_warning) | |
| 4673 | h = h->u.i.link; | |
| 4674 | return h; | |
| 4675 | } | |
| 4676 | ||
| 4677 | static inline struct elf_link_hash_entry * | |
| 4678 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4679 | { | |
| 4680 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4681 | } | |
| 4682 | ||
| 4683 | static inline struct ppc_link_hash_entry * | |
| 4684 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4685 | { | |
| 4686 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4687 | } | |
| 4688 | ||
| 40d16e0b AM |
4689 | /* Merge PLT info on FROM with that on TO. */ |
| 4690 | ||
| 4691 | static void | |
| 4692 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4693 | struct ppc_link_hash_entry *to) | |
| 4694 | { | |
| 4695 | if (from->elf.plt.plist != NULL) | |
| 4696 | { | |
| 4697 | if (to->elf.plt.plist != NULL) | |
| 4698 | { | |
| 4699 | struct plt_entry **entp; | |
| 4700 | struct plt_entry *ent; | |
| 4701 | ||
| 4702 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4703 | { | |
| 4704 | struct plt_entry *dent; | |
| 4705 | ||
| 4706 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4707 | if (dent->addend == ent->addend) | |
| 4708 | { | |
| 4709 | dent->plt.refcount += ent->plt.refcount; | |
| 4710 | *entp = ent->next; | |
| 4711 | break; | |
| 4712 | } | |
| 4713 | if (dent == NULL) | |
| 4714 | entp = &ent->next; | |
| 4715 | } | |
| 4716 | *entp = to->elf.plt.plist; | |
| 4717 | } | |
| 4718 | ||
| 4719 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4720 | from->elf.plt.plist = NULL; | |
| 4721 | } | |
| 4722 | } | |
| 4723 | ||
| 65f38f15 AM |
4724 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4725 | ||
| 4726 | static void | |
| fcfa13d2 AM |
4727 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4728 | struct elf_link_hash_entry *dir, | |
| 4729 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4730 | { |
| 4731 | struct ppc_link_hash_entry *edir, *eind; | |
| 4732 | ||
| 4733 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4734 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4735 | ||
| c79d6685 AM |
4736 | edir->is_func |= eind->is_func; |
| 4737 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4738 | edir->tls_mask |= eind->tls_mask; | |
| 4739 | if (eind->oh != NULL) | |
| 4740 | edir->oh = ppc_follow_link (eind->oh); | |
| 4741 | ||
| 474436e6 AM |
4742 | if (edir->elf.versioned != versioned_hidden) |
| 4743 | { | |
| 4744 | /* If called to transfer flags for a weakdef during processing | |
| 4745 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4746 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4747 | if (!(ELIMINATE_COPY_RELOCS | |
| 4748 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4749 | && edir->elf.dynamic_adjusted)) | |
| 4750 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4751 | ||
| 4752 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4753 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4754 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4755 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4756 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| 4757 | } | |
| c79d6685 | 4758 | |
| d311bc8b AM |
4759 | /* If we were called to copy over info for a weak sym, don't copy |
| 4760 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4761 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4762 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4763 | tests about a specific symbol, or affect other symbol flags which | |
| 4764 | are then tested. | |
| 4765 | Chain weakdefs so we can get from the weakdef back to an alias. | |
| 4766 | The list is circular so that we don't need to use u.weakdef as | |
| 4767 | well as this list to look at all aliases. */ | |
| 4768 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4769 | { | |
| 4770 | struct ppc_link_hash_entry *cur, *add, *next; | |
| 4771 | ||
| 4772 | add = eind; | |
| 4773 | do | |
| 4774 | { | |
| 4775 | cur = edir->weakref; | |
| 4776 | if (cur != NULL) | |
| 4777 | { | |
| 4778 | do | |
| 4779 | { | |
| 4780 | /* We can be called twice for the same symbols. | |
| 4781 | Don't make multiple loops. */ | |
| 4782 | if (cur == add) | |
| 4783 | return; | |
| 4784 | cur = cur->weakref; | |
| 4785 | } while (cur != edir); | |
| 4786 | } | |
| 4787 | next = add->weakref; | |
| 4788 | if (cur != add) | |
| 4789 | { | |
| 4790 | add->weakref = edir->weakref != NULL ? edir->weakref : edir; | |
| 4791 | edir->weakref = add; | |
| 4792 | } | |
| 4793 | add = next; | |
| 4794 | } while (add != NULL && add != eind); | |
| 4795 | return; | |
| 4796 | } | |
| 4797 | ||
| 411e1bfb | 4798 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4799 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4800 | { |
| bbd7ec4a AM |
4801 | if (edir->dyn_relocs != NULL) |
| 4802 | { | |
| 6061a67d AM |
4803 | struct elf_dyn_relocs **pp; |
| 4804 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4805 | |
| fcfa13d2 | 4806 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4807 | list. Merge any entries against the same section. */ |
| 4808 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4809 | { | |
| 6061a67d | 4810 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4811 | |
| 4812 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4813 | if (q->sec == p->sec) | |
| 4814 | { | |
| 4815 | q->pc_count += p->pc_count; | |
| 4816 | q->count += p->count; | |
| 4817 | *pp = p->next; | |
| 4818 | break; | |
| 4819 | } | |
| 4820 | if (q == NULL) | |
| 4821 | pp = &p->next; | |
| 4822 | } | |
| 4823 | *pp = edir->dyn_relocs; | |
| 4824 | } | |
| 4825 | ||
| 65f38f15 AM |
4826 | edir->dyn_relocs = eind->dyn_relocs; |
| 4827 | eind->dyn_relocs = NULL; | |
| 4828 | } | |
| 65f38f15 | 4829 | |
| 81848ca0 AM |
4830 | /* Copy over got entries that we may have already seen to the |
| 4831 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4832 | if (eind->elf.got.glist != NULL) |
| 4833 | { | |
| 4834 | if (edir->elf.got.glist != NULL) | |
| 4835 | { | |
| 4836 | struct got_entry **entp; | |
| 4837 | struct got_entry *ent; | |
| 4838 | ||
| 4839 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4840 | { | |
| 4841 | struct got_entry *dent; | |
| 4842 | ||
| 4843 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4844 | if (dent->addend == ent->addend | |
| e717da7e | 4845 | && dent->owner == ent->owner |
| 411e1bfb AM |
4846 | && dent->tls_type == ent->tls_type) |
| 4847 | { | |
| 4848 | dent->got.refcount += ent->got.refcount; | |
| 4849 | *entp = ent->next; | |
| 4850 | break; | |
| 4851 | } | |
| 4852 | if (dent == NULL) | |
| 4853 | entp = &ent->next; | |
| 4854 | } | |
| 4855 | *entp = edir->elf.got.glist; | |
| 4856 | } | |
| 4857 | ||
| 4858 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4859 | eind->elf.got.glist = NULL; | |
| 4860 | } | |
| 4861 | ||
| 4862 | /* And plt entries. */ | |
| 40d16e0b | 4863 | move_plt_plist (eind, edir); |
| 411e1bfb | 4864 | |
| fcfa13d2 | 4865 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4866 | { |
| fcfa13d2 AM |
4867 | if (edir->elf.dynindx != -1) |
| 4868 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4869 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4870 | edir->elf.dynindx = eind->elf.dynindx; |
| 4871 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4872 | eind->elf.dynindx = -1; | |
| 4873 | eind->elf.dynstr_index = 0; | |
| 4874 | } | |
| 411e1bfb AM |
4875 | } |
| 4876 | ||
| 8387904d AM |
4877 | /* Find the function descriptor hash entry from the given function code |
| 4878 | hash entry FH. Link the entries via their OH fields. */ | |
| 4879 | ||
| 4880 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4881 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4882 | { |
| 4883 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4884 | ||
| 4885 | if (fdh == NULL) | |
| 4886 | { | |
| 4887 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4888 | ||
| 4889 | fdh = (struct ppc_link_hash_entry *) | |
| 4890 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4891 | if (fdh == NULL) |
| 4892 | return fdh; | |
| 4893 | ||
| 4894 | fdh->is_func_descriptor = 1; | |
| 4895 | fdh->oh = fh; | |
| 4896 | fh->is_func = 1; | |
| 4897 | fh->oh = fdh; | |
| 8387904d AM |
4898 | } |
| 4899 | ||
| 8c5b4e52 AM |
4900 | fdh = ppc_follow_link (fdh); |
| 4901 | fdh->is_func_descriptor = 1; | |
| 4902 | fdh->oh = fh; | |
| 4903 | return fdh; | |
| 8387904d AM |
4904 | } |
| 4905 | ||
| 8c5b4e52 | 4906 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4907 | |
| 4908 | static struct ppc_link_hash_entry * | |
| 4909 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4910 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4911 | { |
| 8c5b4e52 AM |
4912 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4913 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4914 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4915 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4916 | ? BSF_WEAK | |
| 4917 | : BSF_GLOBAL); | |
| 4918 | ||
| 4919 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4920 | fh->elf.root.root.string + 1, | |
| 4921 | flags, bfd_und_section_ptr, 0, | |
| 4922 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4923 | return NULL; |
| 4924 | ||
| 4925 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4926 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4927 | fdh->fake = 1; |
| 4928 | fdh->is_func_descriptor = 1; | |
| 4929 | fdh->oh = fh; | |
| 4930 | fh->is_func = 1; | |
| 4931 | fh->oh = fdh; | |
| bb700d78 AM |
4932 | return fdh; |
| 4933 | } | |
| 4934 | ||
| 8387904d AM |
4935 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4936 | function type. */ | |
| 555cd476 AM |
4937 | |
| 4938 | static bfd_boolean | |
| c16153ae | 4939 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4940 | struct bfd_link_info *info, |
| 555cd476 | 4941 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4942 | const char **name, |
| 555cd476 AM |
4943 | flagword *flags ATTRIBUTE_UNUSED, |
| 4944 | asection **sec, | |
| b53dfeb2 | 4945 | bfd_vma *value) |
| 555cd476 | 4946 | { |
| a43942db | 4947 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4948 | && (ibfd->flags & DYNAMIC) == 0 |
| 4949 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4950 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4951 | |
| b53dfeb2 | 4952 | if (*sec != NULL |
| f1885d1e | 4953 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4954 | { |
| 4955 | asection *code_sec; | |
| 4956 | ||
| 4957 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4958 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4959 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4960 | ||
| 4961 | /* If the symbol is a function defined in .opd, and the function | |
| 4962 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4963 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4964 | && (*sec)->reloc_count != 0 |
| 4965 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4966 | FALSE) != (bfd_vma) -1 | |
| 4967 | && discarded_section (code_sec)) | |
| 4968 | { | |
| 4969 | *sec = bfd_und_section_ptr; | |
| 4970 | isym->st_shndx = SHN_UNDEF; | |
| 4971 | } | |
| 4972 | } | |
| dbd1e97e AM |
4973 | else if (*sec != NULL |
| 4974 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4975 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4976 | { | |
| 4977 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4978 | if (htab != NULL) | |
| 4979 | htab->params->object_in_toc = 1; | |
| 4980 | } | |
| 433817dd | 4981 | |
| 6911b7dc AM |
4982 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4983 | { | |
| 4984 | if (abiversion (ibfd) == 0) | |
| 4985 | set_abiversion (ibfd, 2); | |
| 4986 | else if (abiversion (ibfd) == 1) | |
| 4987 | { | |
| 4988 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4989 | " for ABI version 1\n"), name); | |
| 4990 | bfd_set_error (bfd_error_bad_value); | |
| 4991 | return FALSE; | |
| 4992 | } | |
| 4993 | } | |
| 4994 | ||
| 555cd476 AM |
4995 | return TRUE; |
| 4996 | } | |
| 4997 | ||
| 6911b7dc AM |
4998 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4999 | ||
| 5000 | static void | |
| 5001 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5002 | const Elf_Internal_Sym *isym, | |
| 5003 | bfd_boolean definition, | |
| 5004 | bfd_boolean dynamic) | |
| 5005 | { | |
| 5006 | if (definition && !dynamic) | |
| 5007 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 5008 | | ELF_ST_VISIBILITY (h->other)); | |
| 5009 | } | |
| 5010 | ||
| 8c5b4e52 AM |
5011 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5012 | we now have a real symbol. */ | |
| 5013 | ||
| 5014 | static bfd_boolean | |
| 5015 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 5016 | const Elf_Internal_Sym *isym ATTRIBUTE_UNUSED, | |
| 5017 | asection **psec ATTRIBUTE_UNUSED, | |
| 5018 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5019 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5020 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5021 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5022 | { | |
| 5023 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 5024 | return TRUE; | |
| 5025 | } | |
| 5026 | ||
| 8387904d | 5027 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5028 | inclusion of a new ABI object archive that defines "bar". |
| 5029 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5030 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5031 | |
| 5032 | static struct elf_link_hash_entry * | |
| 5033 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5034 | struct bfd_link_info *info, | |
| 5035 | const char *name) | |
| 5036 | { | |
| 5037 | struct elf_link_hash_entry *h; | |
| 5038 | char *dot_name; | |
| 5039 | size_t len; | |
| 5040 | ||
| 5041 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5042 | if (h != NULL |
| 5043 | /* Don't return this sym if it is a fake function descriptor | |
| 5044 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5045 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5046 | return h; |
| 5047 | ||
| 5048 | if (name[0] == '.') | |
| 5049 | return h; | |
| 5050 | ||
| 5051 | len = strlen (name); | |
| 5052 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5053 | if (dot_name == NULL) | |
| 5054 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 5055 | dot_name[0] = '.'; | |
| 5056 | memcpy (dot_name + 1, name, len + 1); | |
| 5057 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5058 | bfd_release (abfd, dot_name); | |
| 5059 | return h; | |
| 5060 | } | |
| 5061 | ||
| 5062 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5063 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5064 | are made weak. This stops later archive searches from including an | |
| 5065 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5066 | prevents the linker complaining about undefined symbols. |
| 5067 | We also check and correct mismatched symbol visibility here. The | |
| 5068 | most restrictive visibility of the function descriptor and the | |
| 5069 | function entry symbol is used. */ | |
| 8387904d AM |
5070 | |
| 5071 | static bfd_boolean | |
| b3fac117 | 5072 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5073 | { |
| 8387904d AM |
5074 | struct ppc_link_hash_table *htab; |
| 5075 | struct ppc_link_hash_entry *fdh; | |
| 5076 | ||
| b3fac117 AM |
5077 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5078 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5079 | |
| 8400d40d AM |
5080 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5081 | return TRUE; | |
| 5082 | ||
| b3fac117 AM |
5083 | if (eh->elf.root.root.string[0] != '.') |
| 5084 | abort (); | |
| 8387904d | 5085 | |
| b3fac117 | 5086 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5087 | if (htab == NULL) |
| 5088 | return FALSE; | |
| 5089 | ||
| b31867b6 | 5090 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5091 | if (fdh == NULL |
| 5092 | && !bfd_link_relocatable (info) | |
| 5093 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5094 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5095 | && eh->elf.ref_regular) | |
| 5096 | { | |
| 5097 | /* Make an undefined function descriptor sym, in order to | |
| 5098 | pull in an --as-needed shared lib. Archives are handled | |
| 5099 | elsewhere. */ | |
| 5100 | fdh = make_fdh (info, eh); | |
| 5101 | if (fdh == NULL) | |
| 5102 | return FALSE; | |
| bb700d78 | 5103 | } |
| 8c5b4e52 AM |
5104 | |
| 5105 | if (fdh != NULL) | |
| 8387904d | 5106 | { |
| 35b0ce59 AM |
5107 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5108 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5109 | |
| 5110 | /* Make both descriptor and entry symbol have the most | |
| 5111 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5112 | if (entry_vis < descr_vis) |
| 5113 | fdh->elf.other += entry_vis - descr_vis; | |
| 5114 | else if (entry_vis > descr_vis) | |
| 5115 | eh->elf.other += descr_vis - entry_vis; | |
| 5116 | ||
| 8c5b4e52 AM |
5117 | /* Propagate reference flags from entry symbol to function |
| 5118 | descriptor symbol. */ | |
| 5119 | fdh->elf.root.non_ir_ref |= eh->elf.root.non_ir_ref; | |
| 5120 | fdh->elf.ref_regular |= eh->elf.ref_regular; | |
| 5121 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5122 | ||
| 5123 | if (!fdh->elf.forced_local | |
| 5124 | && fdh->elf.dynindx == -1 | |
| 5125 | && fdh->elf.versioned != versioned_hidden | |
| 5126 | && (bfd_link_dll (info) | |
| 5127 | || fdh->elf.def_dynamic | |
| 5128 | || fdh->elf.ref_dynamic) | |
| 5129 | && (eh->elf.ref_regular | |
| 5130 | || eh->elf.def_regular)) | |
| 5131 | { | |
| 5132 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5133 | return FALSE; | |
| 35b0ce59 | 5134 | } |
| 8387904d | 5135 | } |
| 99877b66 | 5136 | |
| 8387904d AM |
5137 | return TRUE; |
| 5138 | } | |
| 5139 | ||
| f6c7c3e8 AM |
5140 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5141 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5142 | |
| 8387904d | 5143 | static bfd_boolean |
| f6c7c3e8 | 5144 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5145 | { |
| 99877b66 | 5146 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5147 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5148 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5149 | |
| 459609d6 | 5150 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5151 | { |
| 459609d6 AM |
5152 | if (abiversion (ibfd) == 0) |
| 5153 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5154 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5155 | { |
| 695344c0 | 5156 | /* xgettext:c-format */ |
| 459609d6 AM |
5157 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5158 | " version %d\n"), | |
| 5159 | ibfd, abiversion (ibfd)); | |
| 5160 | bfd_set_error (bfd_error_bad_value); | |
| 5161 | return FALSE; | |
| f6c7c3e8 AM |
5162 | } |
| 5163 | ||
| 459609d6 AM |
5164 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5165 | && (opd->flags & SEC_RELOC) != 0 | |
| 5166 | && opd->reloc_count != 0 | |
| 5167 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5168 | { |
| 459609d6 AM |
5169 | /* Garbage collection needs some extra help with .opd sections. |
| 5170 | We don't want to necessarily keep everything referenced by | |
| 5171 | relocs in .opd, as that would keep all functions. Instead, | |
| 5172 | if we reference an .opd symbol (a function descriptor), we | |
| 5173 | want to keep the function code symbol's section. This is | |
| 5174 | easy for global symbols, but for local syms we need to keep | |
| 5175 | information about the associated function section. */ | |
| 5176 | bfd_size_type amt; | |
| 5177 | asection **opd_sym_map; | |
| 5178 | ||
| 51aecdc5 | 5179 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5180 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5181 | if (opd_sym_map == NULL) | |
| b3fac117 | 5182 | return FALSE; |
| 459609d6 AM |
5183 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5184 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5185 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5186 | } |
| 5187 | } | |
| 5188 | ||
| 459609d6 AM |
5189 | if (!is_ppc64_elf (info->output_bfd)) |
| 5190 | return TRUE; | |
| 5191 | htab = ppc_hash_table (info); | |
| 5192 | if (htab == NULL) | |
| 5193 | return FALSE; | |
| 5194 | ||
| 5195 | /* For input files without an explicit abiversion in e_flags | |
| 5196 | we should have flagged any with symbol st_other bits set | |
| 5197 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5198 | Set the output abiversion if not yet set, and for any input | |
| 5199 | still ambiguous, take its abiversion from the output. | |
| 5200 | Differences in ABI are reported later. */ | |
| 5201 | if (abiversion (info->output_bfd) == 0) | |
| 5202 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5203 | else if (abiversion (ibfd) == 0) | |
| 5204 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5205 | ||
| 5206 | p = &htab->dot_syms; | |
| 5207 | while ((eh = *p) != NULL) | |
| 5208 | { | |
| 5209 | *p = NULL; | |
| 5210 | if (&eh->elf == htab->elf.hgot) | |
| 5211 | ; | |
| 5212 | else if (htab->elf.hgot == NULL | |
| 5213 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5214 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5215 | else if (abiversion (ibfd) <= 1) |
| 5216 | { | |
| 5217 | htab->need_func_desc_adj = 1; | |
| 5218 | if (!add_symbol_adjust (eh, info)) | |
| 5219 | return FALSE; | |
| 5220 | } | |
| 459609d6 AM |
5221 | p = &eh->u.next_dot_sym; |
| 5222 | } | |
| b3fac117 | 5223 | return TRUE; |
| 8387904d AM |
5224 | } |
| 5225 | ||
| 97fed1c9 JJ |
5226 | /* Undo hash table changes when an --as-needed input file is determined |
| 5227 | not to be needed. */ | |
| 5228 | ||
| 5229 | static bfd_boolean | |
| e5034e59 AM |
5230 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5231 | struct bfd_link_info *info, | |
| 5232 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5233 | { |
| e5034e59 AM |
5234 | if (act == notice_not_needed) |
| 5235 | { | |
| 5236 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5237 | |
| e5034e59 AM |
5238 | if (htab == NULL) |
| 5239 | return FALSE; | |
| 4dfe6ac6 | 5240 | |
| e5034e59 AM |
5241 | htab->dot_syms = NULL; |
| 5242 | } | |
| 5243 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5244 | } |
| 5245 | ||
| aa374f67 AM |
5246 | /* If --just-symbols against a final linked binary, then assume we need |
| 5247 | toc adjusting stubs when calling functions defined there. */ | |
| 5248 | ||
| 5249 | static void | |
| 5250 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5251 | { | |
| 5252 | if ((sec->flags & SEC_CODE) != 0 | |
| 5253 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5254 | && is_ppc64_elf (sec->owner)) | |
| 5255 | { | |
| 2c3f079f AM |
5256 | if (abiversion (sec->owner) >= 2 |
| 5257 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5258 | sec->has_toc_reloc = 1; |
| 5259 | } | |
| 5260 | _bfd_elf_link_just_syms (sec, info); | |
| 5261 | } | |
| 5262 | ||
| e054468f | 5263 | static struct plt_entry ** |
| 4ce794b7 AM |
5264 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5265 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5266 | { |
| 5267 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5268 | struct plt_entry **local_plt; |
| f961d9dd | 5269 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5270 | |
| 5271 | if (local_got_ents == NULL) | |
| 5272 | { | |
| 5273 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5274 | ||
| e054468f AM |
5275 | size *= (sizeof (*local_got_ents) |
| 5276 | + sizeof (*local_plt) | |
| 5277 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5278 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5279 | if (local_got_ents == NULL) |
| e054468f | 5280 | return NULL; |
| 411e1bfb AM |
5281 | elf_local_got_ents (abfd) = local_got_ents; |
| 5282 | } | |
| 5283 | ||
| e054468f | 5284 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5285 | { |
| 5286 | struct got_entry *ent; | |
| 5287 | ||
| 5288 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5289 | if (ent->addend == r_addend |
| 5290 | && ent->owner == abfd | |
| 5291 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5292 | break; |
| 5293 | if (ent == NULL) | |
| 5294 | { | |
| 5295 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5296 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5297 | if (ent == NULL) |
| 5298 | return FALSE; | |
| 5299 | ent->next = local_got_ents[r_symndx]; | |
| 5300 | ent->addend = r_addend; | |
| e717da7e | 5301 | ent->owner = abfd; |
| 411e1bfb | 5302 | ent->tls_type = tls_type; |
| 927be08e | 5303 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5304 | ent->got.refcount = 0; |
| 5305 | local_got_ents[r_symndx] = ent; | |
| 5306 | } | |
| 5307 | ent->got.refcount += 1; | |
| 5308 | } | |
| 5309 | ||
| e054468f | 5310 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5311 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5312 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5313 | |
| 5314 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5315 | } |
| 5316 | ||
| 411e1bfb | 5317 | static bfd_boolean |
| e054468f | 5318 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5319 | { |
| 411e1bfb | 5320 | struct plt_entry *ent; |
| 1e2f5b6e | 5321 | |
| e054468f | 5322 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5323 | if (ent->addend == addend) |
| 5324 | break; | |
| 5325 | if (ent == NULL) | |
| 1e2f5b6e | 5326 | { |
| 411e1bfb | 5327 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5328 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5329 | if (ent == NULL) |
| 5330 | return FALSE; | |
| e054468f | 5331 | ent->next = *plist; |
| 411e1bfb AM |
5332 | ent->addend = addend; |
| 5333 | ent->plt.refcount = 0; | |
| e054468f | 5334 | *plist = ent; |
| 1e2f5b6e | 5335 | } |
| 411e1bfb | 5336 | ent->plt.refcount += 1; |
| b34976b6 | 5337 | return TRUE; |
| 1e2f5b6e AM |
5338 | } |
| 5339 | ||
| e054468f AM |
5340 | static bfd_boolean |
| 5341 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5342 | { | |
| 5343 | return (r_type == R_PPC64_REL24 | |
| 5344 | || r_type == R_PPC64_REL14 | |
| 5345 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5346 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5347 | || r_type == R_PPC64_ADDR24 | |
| 5348 | || r_type == R_PPC64_ADDR14 | |
| 5349 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5350 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5351 | } | |
| 5352 | ||
| 5bd4f169 | 5353 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5354 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5355 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5356 | |
| b34976b6 | 5357 | static bfd_boolean |
| 4ce794b7 AM |
5358 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5359 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5360 | { |
| 65f38f15 | 5361 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5362 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5363 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5364 | const Elf_Internal_Rela *rel; |
| 5365 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5366 | asection *sreloc; |
| 1e2f5b6e | 5367 | asection **opd_sym_map; |
| 3a71aa26 | 5368 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5369 | |
| 0e1862bb | 5370 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5371 | return TRUE; |
| 5bd4f169 | 5372 | |
| 680a3378 AM |
5373 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5374 | In particular, any relocs in such sections should not affect GOT | |
| 5375 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5376 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5377 | relocs, and there's not much point in propagating relocs to shared | |
| 5378 | libs that the dynamic linker won't relocate. */ | |
| 5379 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5380 | return TRUE; | |
| 5381 | ||
| 0c8d6e5c | 5382 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5383 | |
| 65f38f15 | 5384 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5385 | if (htab == NULL) |
| 5386 | return FALSE; | |
| 5387 | ||
| 3a71aa26 AM |
5388 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5389 | FALSE, FALSE, TRUE); | |
| 5390 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5391 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5392 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5393 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5394 | sreloc = NULL; |
| 1e2f5b6e | 5395 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5396 | if (ppc64_elf_section_data (sec) != NULL |
| 5397 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5398 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5399 | |
| 5400 | rel_end = relocs + sec->reloc_count; | |
| 5401 | for (rel = relocs; rel < rel_end; rel++) | |
| 5402 | { | |
| 5403 | unsigned long r_symndx; | |
| 5404 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5405 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5406 | int tls_type; |
| 7c8fe5c4 | 5407 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5408 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5409 | |
| 5410 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5411 | if (r_symndx < symtab_hdr->sh_info) | |
| 5412 | h = NULL; | |
| 5413 | else | |
| 973a3492 | 5414 | { |
| 8c5b4e52 AM |
5415 | struct ppc_link_hash_entry *eh; |
| 5416 | ||
| 973a3492 | 5417 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 5418 | h = elf_follow_link (h); |
| 8c5b4e52 | 5419 | eh = (struct ppc_link_hash_entry *) h; |
| 81fbe831 AM |
5420 | |
| 5421 | /* PR15323, ref flags aren't set for references in the same | |
| 5422 | object. */ | |
| 5423 | h->root.non_ir_ref = 1; | |
| 8c5b4e52 AM |
5424 | if (eh->is_func && eh->oh != NULL) |
| 5425 | eh->oh->elf.root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5426 | |
| 5427 | if (h == htab->elf.hgot) | |
| 5428 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5429 | } |
| 5bd4f169 | 5430 | |
| 727fc41e | 5431 | tls_type = 0; |
| e054468f | 5432 | ifunc = NULL; |
| 25f23106 AM |
5433 | if (h != NULL) |
| 5434 | { | |
| 5435 | if (h->type == STT_GNU_IFUNC) | |
| 5436 | { | |
| 5437 | h->needs_plt = 1; | |
| 5438 | ifunc = &h->plt.plist; | |
| 5439 | } | |
| 5440 | } | |
| 5441 | else | |
| 5442 | { | |
| 5443 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5444 | abfd, r_symndx); | |
| 5445 | if (isym == NULL) | |
| 5446 | return FALSE; | |
| 5447 | ||
| 5448 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5449 | { | |
| 5450 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5451 | rel->r_addend, PLT_IFUNC); | |
| 5452 | if (ifunc == NULL) | |
| 5453 | return FALSE; | |
| 5454 | } | |
| 5455 | } | |
| 727fc41e | 5456 | |
| cbf95972 | 5457 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5458 | switch (r_type) |
| 5bd4f169 | 5459 | { |
| 727fc41e AM |
5460 | case R_PPC64_TLSGD: |
| 5461 | case R_PPC64_TLSLD: | |
| 5462 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5463 | its parameter symbol. */ | |
| 5464 | break; | |
| 5465 | ||
| 411e1bfb AM |
5466 | case R_PPC64_GOT_TLSLD16: |
| 5467 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5468 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5469 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5470 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5471 | goto dogottls; |
| 5472 | ||
| 5473 | case R_PPC64_GOT_TLSGD16: | |
| 5474 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5475 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5476 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5477 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5478 | goto dogottls; |
| 5479 | ||
| 5480 | case R_PPC64_GOT_TPREL16_DS: | |
| 5481 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5482 | case R_PPC64_GOT_TPREL16_HI: | |
| 5483 | case R_PPC64_GOT_TPREL16_HA: | |
| 0e1862bb | 5484 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5485 | info->flags |= DF_STATIC_TLS; |
| 5486 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5487 | goto dogottls; | |
| 5488 | ||
| 5489 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5490 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5491 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5492 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5493 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5494 | dogottls: | |
| 5495 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5496 | /* Fall through */ |
| 411e1bfb | 5497 | |
| 5bd4f169 | 5498 | case R_PPC64_GOT16: |
| 5bd4f169 | 5499 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5500 | case R_PPC64_GOT16_HA: |
| 5501 | case R_PPC64_GOT16_HI: | |
| 5502 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5503 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5504 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5505 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5506 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5507 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5508 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5509 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5510 | || r_type == R_PPC64_GOT16 | |
| 5511 | || r_type == R_PPC64_GOT16_DS) | |
| 5512 | { | |
| 5513 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5514 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5515 | } |
| 5516 | ||
| e717da7e AM |
5517 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5518 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5519 | return FALSE; |
| 5bd4f169 AM |
5520 | |
| 5521 | if (h != NULL) | |
| 5522 | { | |
| 411e1bfb AM |
5523 | struct ppc_link_hash_entry *eh; |
| 5524 | struct got_entry *ent; | |
| 65f38f15 | 5525 | |
| 411e1bfb AM |
5526 | eh = (struct ppc_link_hash_entry *) h; |
| 5527 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5528 | if (ent->addend == rel->r_addend | |
| e717da7e | 5529 | && ent->owner == abfd |
| 411e1bfb AM |
5530 | && ent->tls_type == tls_type) |
| 5531 | break; | |
| 5532 | if (ent == NULL) | |
| 5bd4f169 | 5533 | { |
| 411e1bfb | 5534 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5535 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5536 | if (ent == NULL) |
| b34976b6 | 5537 | return FALSE; |
| 411e1bfb AM |
5538 | ent->next = eh->elf.got.glist; |
| 5539 | ent->addend = rel->r_addend; | |
| e717da7e | 5540 | ent->owner = abfd; |
| 411e1bfb | 5541 | ent->tls_type = tls_type; |
| 927be08e | 5542 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5543 | ent->got.refcount = 0; |
| 5544 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5545 | } |
| 411e1bfb | 5546 | ent->got.refcount += 1; |
| e7b938ca | 5547 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5548 | } |
| 411e1bfb AM |
5549 | else |
| 5550 | /* This is a global offset table entry for a local symbol. */ | |
| 5551 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5552 | rel->r_addend, tls_type)) | |
| 5553 | return FALSE; | |
| a345bc8d AM |
5554 | |
| 5555 | /* We may also need a plt entry if the symbol turns out to be | |
| 5556 | an ifunc. */ | |
| 0e1862bb | 5557 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5558 | { |
| 5559 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5560 | return FALSE; | |
| 5561 | } | |
| 5bd4f169 AM |
5562 | break; |
| 5563 | ||
| 5bd4f169 | 5564 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5565 | case R_PPC64_PLT16_HI: |
| 5566 | case R_PPC64_PLT16_LO: | |
| 5567 | case R_PPC64_PLT32: | |
| 5568 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5569 | /* This symbol requires a procedure linkage table entry. */ |
| 5570 | plt_list = ifunc; | |
| 5571 | if (h != NULL) | |
| e054468f | 5572 | { |
| e054468f AM |
5573 | h->needs_plt = 1; |
| 5574 | if (h->root.root.string[0] == '.' | |
| 5575 | && h->root.root.string[1] != '\0') | |
| 5576 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5577 | plt_list = &h->plt.plist; |
| 5578 | } | |
| 5579 | if (plt_list == NULL) | |
| 5580 | { | |
| 5581 | /* It does not make sense to have a procedure linkage | |
| 5582 | table entry for a non-ifunc local symbol. */ | |
| 5583 | info->callbacks->einfo | |
| 695344c0 | 5584 | /* xgettext:c-format */ |
| cbf95972 AM |
5585 | (_("%P: %H: %s reloc against local symbol\n"), |
| 5586 | abfd, sec, rel->r_offset, | |
| 5587 | ppc64_elf_howto_table[r_type]->name); | |
| 5588 | bfd_set_error (bfd_error_bad_value); | |
| 5589 | return FALSE; | |
| e054468f | 5590 | } |
| cbf95972 AM |
5591 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5592 | return FALSE; | |
| 5bd4f169 AM |
5593 | break; |
| 5594 | ||
| 5595 | /* The following relocations don't need to propagate the | |
| 5596 | relocation if linking a shared object since they are | |
| 5597 | section relative. */ | |
| 5598 | case R_PPC64_SECTOFF: | |
| 5599 | case R_PPC64_SECTOFF_LO: | |
| 5600 | case R_PPC64_SECTOFF_HI: | |
| 5601 | case R_PPC64_SECTOFF_HA: | |
| 5602 | case R_PPC64_SECTOFF_DS: | |
| 5603 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5604 | case R_PPC64_DTPREL16: |
| 5605 | case R_PPC64_DTPREL16_LO: | |
| 5606 | case R_PPC64_DTPREL16_HI: | |
| 5607 | case R_PPC64_DTPREL16_HA: | |
| 5608 | case R_PPC64_DTPREL16_DS: | |
| 5609 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5610 | case R_PPC64_DTPREL16_HIGH: |
| 5611 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5612 | case R_PPC64_DTPREL16_HIGHER: |
| 5613 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5614 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5615 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5616 | break; |
| 5617 | ||
| ad8e1ba5 | 5618 | /* Nor do these. */ |
| 25f23106 AM |
5619 | case R_PPC64_REL16: |
| 5620 | case R_PPC64_REL16_LO: | |
| 5621 | case R_PPC64_REL16_HI: | |
| 5622 | case R_PPC64_REL16_HA: | |
| a680de9a | 5623 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5624 | break; |
| 5625 | ||
| 45965137 AM |
5626 | /* Not supported as a dynamic relocation. */ |
| 5627 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5628 | if (bfd_link_pic (info)) |
| 45965137 AM |
5629 | { |
| 5630 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5631 | ppc_howto_init (); | |
| 695344c0 | 5632 | /* xgettext:c-format */ |
| 45965137 AM |
5633 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " |
| 5634 | "in shared libraries and PIEs.\n"), | |
| 5635 | abfd, sec, rel->r_offset, | |
| 5636 | ppc64_elf_howto_table[r_type]->name); | |
| 5637 | bfd_set_error (bfd_error_bad_value); | |
| 5638 | return FALSE; | |
| 5639 | } | |
| 5640 | break; | |
| 5641 | ||
| ad8e1ba5 | 5642 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5643 | case R_PPC64_TOC16_DS: |
| 5644 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5645 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5646 | /* Fall through. */ |
| ad8e1ba5 AM |
5647 | case R_PPC64_TOC16_LO: |
| 5648 | case R_PPC64_TOC16_HI: | |
| 5649 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5650 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5651 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5652 | break; |
| 5653 | ||
| 006589cf AM |
5654 | /* Marker reloc. */ |
| 5655 | case R_PPC64_ENTRY: | |
| 5656 | break; | |
| 5657 | ||
| 5bd4f169 AM |
5658 | /* This relocation describes the C++ object vtable hierarchy. |
| 5659 | Reconstruct it for later use during GC. */ | |
| 5660 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5661 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5662 | return FALSE; |
| 5bd4f169 AM |
5663 | break; |
| 5664 | ||
| 5665 | /* This relocation describes which C++ vtable entries are actually | |
| 5666 | used. Record for later use during GC. */ | |
| 5667 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5668 | BFD_ASSERT (h != NULL); |
| 5669 | if (h != NULL | |
| 5670 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5671 | return FALSE; |
| 5bd4f169 AM |
5672 | break; |
| 5673 | ||
| 721956f4 AM |
5674 | case R_PPC64_REL14: |
| 5675 | case R_PPC64_REL14_BRTAKEN: | |
| 5676 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5677 | { |
| 5678 | asection *dest = NULL; | |
| 5679 | ||
| 5680 | /* Heuristic: If jumping outside our section, chances are | |
| 5681 | we are going to need a stub. */ | |
| 5682 | if (h != NULL) | |
| 5683 | { | |
| 5684 | /* If the sym is weak it may be overridden later, so | |
| 5685 | don't assume we know where a weak sym lives. */ | |
| 5686 | if (h->root.type == bfd_link_hash_defined) | |
| 5687 | dest = h->root.u.def.section; | |
| 5688 | } | |
| 5689 | else | |
| 87d72d41 AM |
5690 | { |
| 5691 | Elf_Internal_Sym *isym; | |
| 5692 | ||
| 5693 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5694 | abfd, r_symndx); | |
| 5695 | if (isym == NULL) | |
| 5696 | return FALSE; | |
| 5697 | ||
| 5698 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5699 | } | |
| 5700 | ||
| 220c76dd | 5701 | if (dest != sec) |
| 7c8fe5c4 | 5702 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5703 | } |
| 721956f4 AM |
5704 | /* Fall through. */ |
| 5705 | ||
| 5d1634d7 | 5706 | case R_PPC64_REL24: |
| cbf95972 AM |
5707 | plt_list = ifunc; |
| 5708 | if (h != NULL) | |
| 5d1634d7 | 5709 | { |
| e054468f AM |
5710 | h->needs_plt = 1; |
| 5711 | if (h->root.root.string[0] == '.' | |
| 5712 | && h->root.root.string[1] != '\0') | |
| 5713 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5714 | |
| 3a71aa26 | 5715 | if (h == tga || h == dottga) |
| cbf95972 AM |
5716 | { |
| 5717 | sec->has_tls_reloc = 1; | |
| 5718 | if (rel != relocs | |
| 5719 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5720 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5721 | /* We have a new-style __tls_get_addr call with | |
| 5722 | a marker reloc. */ | |
| 5723 | ; | |
| 5724 | else | |
| 5725 | /* Mark this section as having an old-style call. */ | |
| 5726 | sec->has_tls_get_addr_call = 1; | |
| 5727 | } | |
| 5728 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5729 | } |
| cbf95972 AM |
5730 | |
| 5731 | /* We may need a .plt entry if the function this reloc | |
| 5732 | refers to is in a shared lib. */ | |
| 5733 | if (plt_list | |
| 5734 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5735 | return FALSE; | |
| 411e1bfb AM |
5736 | break; |
| 5737 | ||
| cbf95972 AM |
5738 | case R_PPC64_ADDR14: |
| 5739 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5740 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5741 | case R_PPC64_ADDR24: | |
| 5742 | goto dodyn; | |
| 5743 | ||
| 411e1bfb AM |
5744 | case R_PPC64_TPREL64: |
| 5745 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 0e1862bb | 5746 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5747 | info->flags |= DF_STATIC_TLS; |
| 5748 | goto dotlstoc; | |
| 5749 | ||
| 5750 | case R_PPC64_DTPMOD64: | |
| 5751 | if (rel + 1 < rel_end | |
| 5752 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5753 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5754 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5755 | else |
| 951fd09b | 5756 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5757 | goto dotlstoc; |
| 5758 | ||
| 5759 | case R_PPC64_DTPREL64: | |
| 5760 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5761 | if (rel != relocs | |
| 5762 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5763 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5764 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5765 | Don't mark with TLS_DTPREL. */ | |
| 5766 | goto dodyn; | |
| 5767 | ||
| 5768 | dotlstoc: | |
| 5769 | sec->has_tls_reloc = 1; | |
| 5770 | if (h != NULL) | |
| 5771 | { | |
| 5772 | struct ppc_link_hash_entry *eh; | |
| 5773 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5774 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5775 | } |
| 5776 | else | |
| 5777 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5778 | rel->r_addend, tls_type)) | |
| 5779 | return FALSE; | |
| 5780 | ||
| 7c8fe5c4 AM |
5781 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5782 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5783 | { |
| 3a71aa26 AM |
5784 | bfd_size_type amt; |
| 5785 | ||
| e7b938ca | 5786 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5787 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5788 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5789 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5790 | return FALSE; | |
| 5791 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5792 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5793 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5794 | return FALSE; |
| 7c8fe5c4 AM |
5795 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5796 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5797 | } |
| 5798 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5799 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5800 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5801 | |
| 5802 | /* Mark the second slot of a GD or LD entry. | |
| 5803 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5804 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5805 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5806 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5807 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5808 | goto dodyn; |
| 5809 | ||
| 5810 | case R_PPC64_TPREL16: | |
| 5811 | case R_PPC64_TPREL16_LO: | |
| 5812 | case R_PPC64_TPREL16_HI: | |
| 5813 | case R_PPC64_TPREL16_HA: | |
| 5814 | case R_PPC64_TPREL16_DS: | |
| 5815 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5816 | case R_PPC64_TPREL16_HIGH: |
| 5817 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5818 | case R_PPC64_TPREL16_HIGHER: |
| 5819 | case R_PPC64_TPREL16_HIGHERA: | |
| 5820 | case R_PPC64_TPREL16_HIGHEST: | |
| 5821 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 5822 | if (bfd_link_pic (info)) |
| 411e1bfb | 5823 | { |
| afb93314 | 5824 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5825 | goto dodyn; |
| 5d1634d7 AM |
5826 | } |
| 5827 | break; | |
| 5828 | ||
| e86ce104 | 5829 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5830 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5831 | && rel + 1 < rel_end |
| 4ce794b7 | 5832 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5833 | { |
| 8387904d | 5834 | if (h != NULL) |
| 8c5b4e52 | 5835 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 8387904d AM |
5836 | else |
| 5837 | { | |
| 5838 | asection *s; | |
| 87d72d41 | 5839 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5840 | |
| 87d72d41 AM |
5841 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5842 | abfd, r_symndx); | |
| 5843 | if (isym == NULL) | |
| 8387904d | 5844 | return FALSE; |
| 87d72d41 AM |
5845 | |
| 5846 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5847 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5848 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5849 | } |
| 1e2f5b6e | 5850 | } |
| e86ce104 AM |
5851 | /* Fall through. */ |
| 5852 | ||
| 65f38f15 AM |
5853 | case R_PPC64_ADDR16: |
| 5854 | case R_PPC64_ADDR16_DS: | |
| 5855 | case R_PPC64_ADDR16_HA: | |
| 5856 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5857 | case R_PPC64_ADDR16_HIGH: |
| 5858 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5859 | case R_PPC64_ADDR16_HIGHER: |
| 5860 | case R_PPC64_ADDR16_HIGHERA: | |
| 5861 | case R_PPC64_ADDR16_HIGHEST: | |
| 5862 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5863 | case R_PPC64_ADDR16_LO: | |
| 5864 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5865 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5866 | && rel->r_addend == 0) |
| 5867 | { | |
| 5868 | /* We may need a .plt entry if this reloc refers to a | |
| 5869 | function in a shared lib. */ | |
| 5870 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5871 | return FALSE; | |
| 5872 | h->pointer_equality_needed = 1; | |
| 5873 | } | |
| 5874 | /* Fall through. */ | |
| 5875 | ||
| 5876 | case R_PPC64_REL30: | |
| 5877 | case R_PPC64_REL32: | |
| 5878 | case R_PPC64_REL64: | |
| 65f38f15 | 5879 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5880 | case R_PPC64_UADDR16: |
| 5881 | case R_PPC64_UADDR32: | |
| 5882 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5883 | case R_PPC64_TOC: |
| 0e1862bb | 5884 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5885 | /* We may need a copy reloc. */ |
| f5385ebf | 5886 | h->non_got_ref = 1; |
| 81848ca0 | 5887 | |
| 41bd81ab | 5888 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5889 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5890 | break; |
| e86ce104 | 5891 | |
| 65f38f15 AM |
5892 | /* If we are creating a shared library, and this is a reloc |
| 5893 | against a global symbol, or a non PC relative reloc | |
| 5894 | against a local symbol, then we need to copy the reloc | |
| 5895 | into the shared library. However, if we are linking with | |
| 5896 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5897 | global symbol which is defined in an object we are | |
| 5898 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5899 | this point we have not seen all the input files, so it is | |
| 5900 | possible that DEF_REGULAR is not set now but will be set | |
| 5901 | later (it is never cleared). In case of a weak definition, | |
| 5902 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5903 | a shared library. We account for that possibility below by | |
| f4656909 | 5904 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5905 | table entry. A similar situation occurs when creating |
| 5906 | shared libraries and symbol visibility changes render the | |
| 5907 | symbol local. | |
| 5908 | ||
| 5909 | If on the other hand, we are creating an executable, we | |
| 5910 | may need to keep relocations for symbols satisfied by a | |
| 5911 | dynamic library if we manage to avoid copy relocs for the | |
| 5912 | symbol. */ | |
| 411e1bfb | 5913 | dodyn: |
| 0e1862bb | 5914 | if ((bfd_link_pic (info) |
| 1d483afe | 5915 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5916 | || (h != NULL |
| 198f1157 | 5917 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5918 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5919 | || !h->def_regular)))) |
| f4656909 | 5920 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5921 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5922 | && h != NULL |
| 5923 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5924 | || !h->def_regular)) |
| 0e1862bb | 5925 | || (!bfd_link_pic (info) |
| 25f23106 | 5926 | && ifunc != NULL)) |
| 5bd4f169 | 5927 | { |
| 65f38f15 AM |
5928 | /* We must copy these reloc types into the output file. |
| 5929 | Create a reloc section in dynobj and make room for | |
| 5930 | this reloc. */ | |
| 5bd4f169 AM |
5931 | if (sreloc == NULL) |
| 5932 | { | |
| 83bac4b0 NC |
5933 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5934 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5935 | |
| 5bd4f169 | 5936 | if (sreloc == NULL) |
| 83bac4b0 | 5937 | return FALSE; |
| 5bd4f169 AM |
5938 | } |
| 5939 | ||
| 65f38f15 AM |
5940 | /* If this is a global symbol, we count the number of |
| 5941 | relocations we need for this symbol. */ | |
| 5942 | if (h != NULL) | |
| 5943 | { | |
| 19e08130 AM |
5944 | struct elf_dyn_relocs *p; |
| 5945 | struct elf_dyn_relocs **head; | |
| 5946 | ||
| ec338859 | 5947 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5948 | p = *head; |
| 5949 | if (p == NULL || p->sec != sec) | |
| 5950 | { | |
| 5951 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5952 | if (p == NULL) | |
| 5953 | return FALSE; | |
| 5954 | p->next = *head; | |
| 5955 | *head = p; | |
| 5956 | p->sec = sec; | |
| 5957 | p->count = 0; | |
| 5958 | p->pc_count = 0; | |
| 5959 | } | |
| 5960 | p->count += 1; | |
| 5961 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5962 | p->pc_count += 1; | |
| 65f38f15 AM |
5963 | } |
| 5964 | else | |
| 5965 | { | |
| ec338859 AM |
5966 | /* Track dynamic relocs needed for local syms too. |
| 5967 | We really need local syms available to do this | |
| 5968 | easily. Oh well. */ | |
| 19e08130 AM |
5969 | struct ppc_dyn_relocs *p; |
| 5970 | struct ppc_dyn_relocs **head; | |
| 5971 | bfd_boolean is_ifunc; | |
| ec338859 | 5972 | asection *s; |
| 6edfbbad | 5973 | void *vpp; |
| 87d72d41 | 5974 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5975 | |
| 87d72d41 AM |
5976 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5977 | abfd, r_symndx); | |
| 5978 | if (isym == NULL) | |
| b34976b6 | 5979 | return FALSE; |
| ec338859 | 5980 | |
| 87d72d41 AM |
5981 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5982 | if (s == NULL) | |
| 5983 | s = sec; | |
| 5984 | ||
| 6edfbbad | 5985 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5986 | head = (struct ppc_dyn_relocs **) vpp; |
| 5987 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5988 | p = *head; | |
| 5989 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5990 | p = p->next; | |
| 5991 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5992 | { | |
| 5993 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5994 | if (p == NULL) | |
| 5995 | return FALSE; | |
| 5996 | p->next = *head; | |
| 5997 | *head = p; | |
| 5998 | p->sec = sec; | |
| 5999 | p->ifunc = is_ifunc; | |
| 6000 | p->count = 0; | |
| 6001 | } | |
| 6002 | p->count += 1; | |
| ec338859 | 6003 | } |
| 65f38f15 | 6004 | } |
| 5bd4f169 | 6005 | break; |
| 65f38f15 AM |
6006 | |
| 6007 | default: | |
| 96e0dda4 | 6008 | break; |
| 5bd4f169 AM |
6009 | } |
| 6010 | } | |
| 6011 | ||
| b34976b6 | 6012 | return TRUE; |
| 5bd4f169 AM |
6013 | } |
| 6014 | ||
| ee67d69a AM |
6015 | /* Merge backend specific data from an object file to the output |
| 6016 | object file when linking. */ | |
| 6017 | ||
| 6018 | static bfd_boolean | |
| 50e03d47 | 6019 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6020 | { |
| 50e03d47 | 6021 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6022 | unsigned long iflags, oflags; |
| 6023 | ||
| 6024 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6025 | return TRUE; | |
| 6026 | ||
| 6027 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6028 | return TRUE; | |
| 6029 | ||
| 50e03d47 | 6030 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6031 | return FALSE; |
| 6032 | ||
| 6033 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6034 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6035 | ||
| f6c7c3e8 | 6036 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6037 | { |
| 4eca0228 | 6038 | _bfd_error_handler |
| 695344c0 | 6039 | /* xgettext:c-format */ |
| ee67d69a AM |
6040 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); |
| 6041 | bfd_set_error (bfd_error_bad_value); | |
| 6042 | return FALSE; | |
| 6043 | } | |
| f6c7c3e8 | 6044 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6045 | { |
| 4eca0228 | 6046 | _bfd_error_handler |
| 695344c0 | 6047 | /* xgettext:c-format */ |
| ee67d69a AM |
6048 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), |
| 6049 | ibfd, iflags, oflags); | |
| 6050 | bfd_set_error (bfd_error_bad_value); | |
| 6051 | return FALSE; | |
| 6052 | } | |
| 6053 | ||
| 50e03d47 | 6054 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6055 | |
| ee67d69a | 6056 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6057 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6058 | |
| 6059 | return TRUE; | |
| 6060 | } | |
| 6061 | ||
| 6062 | static bfd_boolean | |
| 6063 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6064 | { | |
| 6065 | /* Print normal ELF private data. */ | |
| 6066 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6067 | ||
| 6068 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6069 | { | |
| 6070 | FILE *file = ptr; | |
| 6071 | ||
| ee67d69a AM |
6072 | fprintf (file, _("private flags = 0x%lx:"), |
| 6073 | elf_elfheader (abfd)->e_flags); | |
| 6074 | ||
| 6075 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6076 | fprintf (file, _(" [abiv%ld]"), | |
| 6077 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6078 | fputc ('\n', file); | |
| 6079 | } | |
| 6080 | ||
| 6081 | return TRUE; | |
| 6082 | } | |
| 6083 | ||
| 8387904d | 6084 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6085 | of the code entry point, and its section, which must be in the same |
| 6086 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6087 | |
| 6088 | static bfd_vma | |
| 6089 | opd_entry_value (asection *opd_sec, | |
| 6090 | bfd_vma offset, | |
| 6091 | asection **code_sec, | |
| aef36ac1 AM |
6092 | bfd_vma *code_off, |
| 6093 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6094 | { |
| 6095 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6096 | Elf_Internal_Rela *relocs; |
| 8387904d | 6097 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6098 | bfd_vma val; |
| 8387904d | 6099 | |
| 9f296da3 AM |
6100 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6101 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6102 | if (opd_sec->reloc_count == 0) |
| 6103 | { | |
| 729eabd5 | 6104 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6105 | |
| 729eabd5 AM |
6106 | if (contents == NULL) |
| 6107 | { | |
| 6108 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6109 | return (bfd_vma) -1; | |
| 6110 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6111 | } | |
| ee1e4ede | 6112 | |
| dbb3fbbb | 6113 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6114 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6115 | return (bfd_vma) -1; |
| 6116 | ||
| 729eabd5 | 6117 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6118 | if (code_sec != NULL) |
| 6119 | { | |
| 6120 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6121 | |
| aef36ac1 | 6122 | if (in_code_sec) |
| 4b85d634 | 6123 | { |
| aef36ac1 AM |
6124 | sec = *code_sec; |
| 6125 | if (sec->vma <= val | |
| 6126 | && val < sec->vma + sec->size) | |
| 6127 | likely = sec; | |
| 6128 | else | |
| 6129 | val = -1; | |
| 6130 | } | |
| 6131 | else | |
| 6132 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6133 | if (sec->vma <= val | |
| 6134 | && (sec->flags & SEC_LOAD) != 0 | |
| 6135 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6136 | likely = sec; | |
| 6137 | if (likely != NULL) | |
| 6138 | { | |
| 6139 | *code_sec = likely; | |
| 6140 | if (code_off != NULL) | |
| 6141 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6142 | } |
| 6143 | } | |
| aef36ac1 | 6144 | return val; |
| 4b85d634 AM |
6145 | } |
| 6146 | ||
| 0c8d6e5c | 6147 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6148 | |
| 729eabd5 | 6149 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6150 | if (relocs == NULL) |
| 6151 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6152 | /* PR 17512: file: df8e1fd6. */ |
| 6153 | if (relocs == NULL) | |
| 6154 | return (bfd_vma) -1; | |
| 645ea6a9 | 6155 | |
| 8387904d | 6156 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6157 | lo = relocs; |
| 8387904d | 6158 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6159 | val = (bfd_vma) -1; |
| 8387904d AM |
6160 | while (lo < hi) |
| 6161 | { | |
| 6162 | look = lo + (hi - lo) / 2; | |
| 6163 | if (look->r_offset < offset) | |
| 6164 | lo = look + 1; | |
| 6165 | else if (look->r_offset > offset) | |
| 6166 | hi = look; | |
| 6167 | else | |
| 6168 | { | |
| 0ffa91dd NC |
6169 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6170 | ||
| 8387904d AM |
6171 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6172 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6173 | { | |
| 6174 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6175 | asection *sec = NULL; |
| 8387904d | 6176 | |
| b53dfeb2 AM |
6177 | if (symndx >= symtab_hdr->sh_info |
| 6178 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6179 | { |
| 6180 | struct elf_link_hash_entry **sym_hashes; | |
| 6181 | struct elf_link_hash_entry *rh; | |
| 6182 | ||
| 6183 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6184 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6185 | if (rh != NULL) |
| 6186 | { | |
| 6187 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6188 | if (rh->root.type != bfd_link_hash_defined |
| 6189 | && rh->root.type != bfd_link_hash_defweak) | |
| 6190 | break; | |
| 6191 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6192 | { |
| bb854a36 AM |
6193 | val = rh->root.u.def.value; |
| 6194 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6195 | } |
| 6196 | } | |
| 6197 | } | |
| 6198 | ||
| 6199 | if (sec == NULL) | |
| 6200 | { | |
| 6201 | Elf_Internal_Sym *sym; | |
| 6202 | ||
| 6203 | if (symndx < symtab_hdr->sh_info) | |
| 6204 | { | |
| 6205 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6206 | if (sym == NULL) | |
| 6207 | { | |
| 6208 | size_t symcnt = symtab_hdr->sh_info; | |
| 6209 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6210 | symcnt, 0, | |
| 6211 | NULL, NULL, NULL); | |
| 6212 | if (sym == NULL) | |
| 6213 | break; | |
| 6214 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6215 | } | |
| 6216 | sym += symndx; | |
| 128205bb AM |
6217 | } |
| 6218 | else | |
| 6219 | { | |
| b53dfeb2 AM |
6220 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6221 | 1, symndx, | |
| 6222 | NULL, NULL, NULL); | |
| 128205bb AM |
6223 | if (sym == NULL) |
| 6224 | break; | |
| 128205bb | 6225 | } |
| b53dfeb2 AM |
6226 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6227 | if (sec == NULL) | |
| 6228 | break; | |
| 6229 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6230 | val = sym->st_value; | |
| 8387904d | 6231 | } |
| b53dfeb2 | 6232 | |
| 8387904d AM |
6233 | val += look->r_addend; |
| 6234 | if (code_off != NULL) | |
| 6235 | *code_off = val; | |
| 6236 | if (code_sec != NULL) | |
| aef36ac1 AM |
6237 | { |
| 6238 | if (in_code_sec && *code_sec != sec) | |
| 6239 | return -1; | |
| 6240 | else | |
| 6241 | *code_sec = sec; | |
| 6242 | } | |
| b53dfeb2 | 6243 | if (sec->output_section != NULL) |
| 8387904d | 6244 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6245 | } |
| 6246 | break; | |
| 6247 | } | |
| 6248 | } | |
| 645ea6a9 | 6249 | |
| 645ea6a9 | 6250 | return val; |
| 8387904d AM |
6251 | } |
| 6252 | ||
| aef36ac1 AM |
6253 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6254 | function size and set *CODE_OFF to the function's entry point, | |
| 6255 | otherwise return zero. */ | |
| 9f296da3 | 6256 | |
| aef36ac1 AM |
6257 | static bfd_size_type |
| 6258 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6259 | bfd_vma *code_off) | |
| 9f296da3 | 6260 | { |
| aef36ac1 AM |
6261 | bfd_size_type size; |
| 6262 | ||
| 6263 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6264 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6265 | return 0; | |
| 6266 | ||
| 6267 | size = 0; | |
| 6268 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6269 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6270 | ||
| 6271 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6272 | { |
| b07bca4e AM |
6273 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6274 | bfd_vma symval = sym->value; | |
| 6275 | ||
| 6276 | if (opd != NULL | |
| 6277 | && opd->adjust != NULL | |
| 6278 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6279 | { | |
| 6280 | /* opd_entry_value will use cached relocs that have been | |
| 6281 | adjusted, but with raw symbols. That means both local | |
| 6282 | and global symbols need adjusting. */ | |
| 6283 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6284 | if (adjust == -1) | |
| 6285 | return 0; | |
| 6286 | symval += adjust; | |
| 6287 | } | |
| 6288 | ||
| 6289 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6290 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6291 | return 0; | |
| 6292 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6293 | symbol. This size has nothing to do with the code size of the | |
| 6294 | function, which is what we're supposed to return, but the | |
| 6295 | code size isn't available without looking up the dot-sym. | |
| 6296 | However, doing that would be a waste of time particularly | |
| 6297 | since elf_find_function will look at the dot-sym anyway. | |
| 6298 | Now, elf_find_function will keep the largest size of any | |
| 6299 | function sym found at the code address of interest, so return | |
| 6300 | 1 here to avoid it incorrectly caching a larger function size | |
| 6301 | for a small function. This does mean we return the wrong | |
| 6302 | size for a new-ABI function of size 24, but all that does is | |
| 6303 | disable caching for such functions. */ | |
| 6304 | if (size == 24) | |
| 6305 | size = 1; | |
| 9f296da3 | 6306 | } |
| aef36ac1 AM |
6307 | else |
| 6308 | { | |
| 6309 | if (sym->section != sec) | |
| 6310 | return 0; | |
| 6311 | *code_off = sym->value; | |
| 6312 | } | |
| 6313 | if (size == 0) | |
| 6314 | size = 1; | |
| 6315 | return size; | |
| 9f296da3 AM |
6316 | } |
| 6317 | ||
| 854b41e7 AM |
6318 | /* Return true if symbol is defined in a regular object file. */ |
| 6319 | ||
| 6320 | static bfd_boolean | |
| 6321 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6322 | { | |
| 6323 | return ((h->root.type == bfd_link_hash_defined | |
| 6324 | || h->root.type == bfd_link_hash_defweak) | |
| 6325 | && h->root.u.def.section != NULL | |
| 6326 | && h->root.u.def.section->output_section != NULL); | |
| 6327 | } | |
| 6328 | ||
| b31867b6 AM |
6329 | /* If FDH is a function descriptor symbol, return the associated code |
| 6330 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6331 | ||
| 6332 | static struct ppc_link_hash_entry * | |
| 6333 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6334 | { | |
| 6335 | if (fdh->is_func_descriptor) | |
| 6336 | { | |
| 6337 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6338 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6339 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6340 | return fh; | |
| 6341 | } | |
| 6342 | return NULL; | |
| 6343 | } | |
| 6344 | ||
| 6345 | /* If FH is a function code entry symbol, return the associated | |
| 6346 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6347 | ||
| 6348 | static struct ppc_link_hash_entry * | |
| 6349 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6350 | { | |
| 6351 | if (fh->oh != NULL | |
| 6352 | && fh->oh->is_func_descriptor) | |
| 6353 | { | |
| 6354 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6355 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6356 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6357 | return fdh; | |
| 6358 | } | |
| 6359 | return NULL; | |
| 6360 | } | |
| 6361 | ||
| 8c5b4e52 AM |
6362 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6363 | ||
| 6364 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6365 | ||
| 6366 | static bfd_boolean | |
| 6367 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6368 | { | |
| 6369 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6370 | ||
| 6371 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6372 | { | |
| 6373 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6374 | htab->need_func_desc_adj = 0; | |
| 6375 | } | |
| 6376 | return bfd_elf_gc_sections (abfd, info); | |
| 6377 | } | |
| 6378 | ||
| 74f0fb50 AM |
6379 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6380 | ||
| 6381 | static void | |
| 6382 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6383 | { | |
| 6384 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6385 | struct bfd_sym_chain *sym; | |
| 6386 | ||
| 4dfe6ac6 NC |
6387 | if (htab == NULL) |
| 6388 | return; | |
| 6389 | ||
| 74f0fb50 AM |
6390 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6391 | { | |
| b31867b6 | 6392 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6393 | asection *sec; |
| 6394 | ||
| 6395 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6396 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6397 | if (eh == NULL) |
| 6398 | continue; | |
| 6399 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6400 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6401 | continue; | |
| 6402 | ||
| b31867b6 AM |
6403 | fh = defined_code_entry (eh); |
| 6404 | if (fh != NULL) | |
| 74f0fb50 | 6405 | { |
| b31867b6 | 6406 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6407 | sec->flags |= SEC_KEEP; |
| 6408 | } | |
| 6409 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6410 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6411 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6412 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6413 | sec->flags |= SEC_KEEP; |
| 6414 | ||
| 6415 | sec = eh->elf.root.u.def.section; | |
| 6416 | sec->flags |= SEC_KEEP; | |
| 6417 | } | |
| 6418 | } | |
| 6419 | ||
| 64d03ab5 AM |
6420 | /* Mark sections containing dynamically referenced symbols. When |
| 6421 | building shared libraries, we must assume that any visible symbol is | |
| 6422 | referenced. */ | |
| 6423 | ||
| 6424 | static bfd_boolean | |
| 6425 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6426 | { | |
| 6427 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6428 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6429 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6430 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6431 | |
| 64d03ab5 | 6432 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6433 | fdh = defined_func_desc (eh); |
| 6434 | if (fdh != NULL) | |
| 6435 | eh = fdh; | |
| 64d03ab5 AM |
6436 | |
| 6437 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6438 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6439 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6440 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6441 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6442 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6443 | && (!bfd_link_executable (info) |
| b407645f AM |
6444 | || info->export_dynamic |
| 6445 | || (eh->elf.dynamic | |
| 6446 | && d != NULL | |
| 6447 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6448 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6449 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6450 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6451 | { |
| 6452 | asection *code_sec; | |
| b31867b6 | 6453 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6454 | |
| 6455 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6456 | ||
| 6457 | /* Function descriptor syms cause the associated | |
| 6458 | function code sym section to be marked. */ | |
| b31867b6 AM |
6459 | fh = defined_code_entry (eh); |
| 6460 | if (fh != NULL) | |
| 6461 | { | |
| 6462 | code_sec = fh->elf.root.u.def.section; | |
| 6463 | code_sec->flags |= SEC_KEEP; | |
| 6464 | } | |
| 64d03ab5 AM |
6465 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6466 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6467 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6468 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6469 | code_sec->flags |= SEC_KEEP; |
| 6470 | } | |
| 6471 | ||
| 6472 | return TRUE; | |
| 6473 | } | |
| 6474 | ||
| 5bd4f169 AM |
6475 | /* Return the section that should be marked against GC for a given |
| 6476 | relocation. */ | |
| 6477 | ||
| 6478 | static asection * | |
| 4ce794b7 | 6479 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6480 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6481 | Elf_Internal_Rela *rel, |
| 6482 | struct elf_link_hash_entry *h, | |
| 6483 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6484 | { |
| ccfa59ea AM |
6485 | asection *rsec; |
| 6486 | ||
| ccfa59ea AM |
6487 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6488 | function sections, as all functions are referenced in .opd. */ | |
| 6489 | rsec = NULL; | |
| 6490 | if (get_opd_info (sec) != NULL) | |
| 6491 | return rsec; | |
| 1e2f5b6e | 6492 | |
| 5bd4f169 AM |
6493 | if (h != NULL) |
| 6494 | { | |
| 04c9666a | 6495 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6496 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6497 | |
| 4ce794b7 | 6498 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6499 | switch (r_type) |
| 5bd4f169 AM |
6500 | { |
| 6501 | case R_PPC64_GNU_VTINHERIT: | |
| 6502 | case R_PPC64_GNU_VTENTRY: | |
| 6503 | break; | |
| 6504 | ||
| 6505 | default: | |
| 6506 | switch (h->root.type) | |
| 6507 | { | |
| 6508 | case bfd_link_hash_defined: | |
| 6509 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6510 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6511 | fdh = defined_func_desc (eh); |
| 6512 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6513 | { |
| 6514 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6515 | a call reloc. Mark the function descriptor too | |
| 6516 | against garbage collection. */ | |
| 6517 | fdh->elf.mark = 1; | |
| 6518 | if (fdh->elf.u.weakdef != NULL) | |
| 6519 | fdh->elf.u.weakdef->mark = 1; | |
| 6520 | eh = fdh; | |
| 6521 | } | |
| 1e2f5b6e AM |
6522 | |
| 6523 | /* Function descriptor syms cause the associated | |
| 6524 | function code sym section to be marked. */ | |
| b31867b6 AM |
6525 | fh = defined_code_entry (eh); |
| 6526 | if (fh != NULL) | |
| ccfa59ea AM |
6527 | { |
| 6528 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6529 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6530 | |
| b31867b6 | 6531 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6532 | } |
| 8387904d AM |
6533 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6534 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6535 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6536 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6537 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6538 | else |
| 1e2f5b6e AM |
6539 | rsec = h->root.u.def.section; |
| 6540 | break; | |
| 5bd4f169 AM |
6541 | |
| 6542 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6543 | rsec = h->root.u.c.p->section; |
| 6544 | break; | |
| 5bd4f169 AM |
6545 | |
| 6546 | default: | |
| fb34365b | 6547 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6548 | } |
| 6549 | } | |
| 6550 | } | |
| 6551 | else | |
| 6552 | { | |
| 74f0fb50 | 6553 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6554 | |
| 6555 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6556 | opd = get_opd_info (rsec); |
| 6557 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6558 | { |
| 74f0fb50 | 6559 | rsec->gc_mark = 1; |
| ccfa59ea | 6560 | |
| 51aecdc5 | 6561 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6562 | } |
| 5bd4f169 AM |
6563 | } |
| 6564 | ||
| 1e2f5b6e | 6565 | return rsec; |
| 5bd4f169 AM |
6566 | } |
| 6567 | ||
| 65f38f15 AM |
6568 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6569 | section being removed. */ | |
| 5bd4f169 | 6570 | |
| b34976b6 | 6571 | static bfd_boolean |
| 4ce794b7 AM |
6572 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6573 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6574 | { |
| 411e1bfb | 6575 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6576 | Elf_Internal_Shdr *symtab_hdr; |
| 6577 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6578 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6579 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6580 | |
| 0e1862bb | 6581 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6582 | return TRUE; |
| 6583 | ||
| 680a3378 AM |
6584 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6585 | return TRUE; | |
| 6586 | ||
| ec338859 AM |
6587 | elf_section_data (sec)->local_dynrel = NULL; |
| 6588 | ||
| 411e1bfb | 6589 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6590 | if (htab == NULL) |
| 6591 | return FALSE; | |
| 6592 | ||
| 0ffa91dd | 6593 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6594 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6595 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6596 | |
| 6597 | relend = relocs + sec->reloc_count; | |
| 6598 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6599 | { |
| 6600 | unsigned long r_symndx; | |
| 04c9666a | 6601 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6602 | struct elf_link_hash_entry *h = NULL; |
| cbf95972 | 6603 | struct plt_entry **plt_list; |
| f961d9dd | 6604 | unsigned char tls_type = 0; |
| 5bd4f169 | 6605 | |
| a33d1f77 | 6606 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6607 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6608 | if (r_symndx >= symtab_hdr->sh_info) |
| 6609 | { | |
| 6610 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6611 | struct elf_dyn_relocs **pp; |
| 6612 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6613 | |
| 6614 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6615 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6616 | eh = (struct ppc_link_hash_entry *) h; |
| 6617 | ||
| 6618 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6619 | if (p->sec == sec) | |
| 6620 | { | |
| 6621 | /* Everything must go for SEC. */ | |
| 6622 | *pp = p->next; | |
| 6623 | break; | |
| 6624 | } | |
| 6625 | } | |
| 6626 | ||
| a33d1f77 AM |
6627 | switch (r_type) |
| 6628 | { | |
| 411e1bfb AM |
6629 | case R_PPC64_GOT_TLSLD16: |
| 6630 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6631 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6632 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6633 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6634 | goto dogot; |
| 6635 | ||
| 6636 | case R_PPC64_GOT_TLSGD16: | |
| 6637 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6638 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6639 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6640 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6641 | goto dogot; |
| 6642 | ||
| 6643 | case R_PPC64_GOT_TPREL16_DS: | |
| 6644 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6645 | case R_PPC64_GOT_TPREL16_HI: | |
| 6646 | case R_PPC64_GOT_TPREL16_HA: | |
| 6647 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6648 | goto dogot; | |
| 6649 | ||
| 6650 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6651 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6652 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6653 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6654 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6655 | goto dogot; | |
| 6656 | ||
| a33d1f77 AM |
6657 | case R_PPC64_GOT16: |
| 6658 | case R_PPC64_GOT16_DS: | |
| 6659 | case R_PPC64_GOT16_HA: | |
| 6660 | case R_PPC64_GOT16_HI: | |
| 6661 | case R_PPC64_GOT16_LO: | |
| 6662 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6663 | dogot: |
| 6664 | { | |
| 6665 | struct got_entry *ent; | |
| 6666 | ||
| 58ac9f71 AM |
6667 | if (h != NULL) |
| 6668 | ent = h->got.glist; | |
| 411e1bfb AM |
6669 | else |
| 6670 | ent = local_got_ents[r_symndx]; | |
| 6671 | ||
| 6672 | for (; ent != NULL; ent = ent->next) | |
| 6673 | if (ent->addend == rel->r_addend | |
| e717da7e | 6674 | && ent->owner == abfd |
| 411e1bfb AM |
6675 | && ent->tls_type == tls_type) |
| 6676 | break; | |
| 6677 | if (ent == NULL) | |
| 6678 | abort (); | |
| 6679 | if (ent->got.refcount > 0) | |
| 6680 | ent->got.refcount -= 1; | |
| 6681 | } | |
| a33d1f77 | 6682 | break; |
| 65f38f15 | 6683 | |
| a33d1f77 AM |
6684 | case R_PPC64_PLT16_HA: |
| 6685 | case R_PPC64_PLT16_HI: | |
| 6686 | case R_PPC64_PLT16_LO: | |
| 6687 | case R_PPC64_PLT32: | |
| 6688 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6689 | case R_PPC64_REL14: |
| 6690 | case R_PPC64_REL14_BRNTAKEN: | |
| 6691 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6692 | case R_PPC64_REL24: |
| cbf95972 | 6693 | plt_list = NULL; |
| 58ac9f71 | 6694 | if (h != NULL) |
| cbf95972 AM |
6695 | plt_list = &h->plt.plist; |
| 6696 | else if (local_got_ents != NULL) | |
| 6697 | { | |
| 6698 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6699 | (local_got_ents + symtab_hdr->sh_info); | |
| 6700 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 6701 | (local_plt + symtab_hdr->sh_info); | |
| 6702 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6703 | plt_list = local_plt + r_symndx; | |
| 6704 | } | |
| 6705 | if (plt_list) | |
| 5d1634d7 | 6706 | { |
| 411e1bfb AM |
6707 | struct plt_entry *ent; |
| 6708 | ||
| cbf95972 | 6709 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6710 | if (ent->addend == rel->r_addend) |
| 6711 | break; | |
| 7c6c1722 | 6712 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6713 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6714 | } |
| e86ce104 | 6715 | break; |
| 5d1634d7 | 6716 | |
| a33d1f77 AM |
6717 | default: |
| 6718 | break; | |
| 6719 | } | |
| 6720 | } | |
| b34976b6 | 6721 | return TRUE; |
| 5bd4f169 AM |
6722 | } |
| 6723 | ||
| deb0e272 AM |
6724 | /* The maximum size of .sfpr. */ |
| 6725 | #define SFPR_MAX (218*4) | |
| 6726 | ||
| 6727 | struct sfpr_def_parms | |
| 6728 | { | |
| 699733f6 AM |
6729 | const char name[12]; |
| 6730 | unsigned char lo, hi; | |
| deb0e272 AM |
6731 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6732 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6733 | }; | |
| 6734 | ||
| a4b6fadd AM |
6735 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6736 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6737 | instead. */ | |
| deb0e272 | 6738 | |
| 4dfe6ac6 | 6739 | static bfd_boolean |
| a4b6fadd AM |
6740 | sfpr_define (struct bfd_link_info *info, |
| 6741 | const struct sfpr_def_parms *parm, | |
| 6742 | asection *stub_sec) | |
| deb0e272 AM |
6743 | { |
| 6744 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6745 | unsigned int i; | |
| 6746 | size_t len = strlen (parm->name); | |
| 6747 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6748 | char sym[16]; |
| deb0e272 | 6749 | |
| 4dfe6ac6 NC |
6750 | if (htab == NULL) |
| 6751 | return FALSE; | |
| 6752 | ||
| deb0e272 AM |
6753 | memcpy (sym, parm->name, len); |
| 6754 | sym[len + 2] = 0; | |
| 6755 | ||
| 6756 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6757 | { | |
| a4b6fadd | 6758 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6759 | |
| 6760 | sym[len + 0] = i / 10 + '0'; | |
| 6761 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6762 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6763 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6764 | if (stub_sec != NULL) |
| deb0e272 | 6765 | { |
| a4b6fadd AM |
6766 | if (h != NULL |
| 6767 | && h->elf.root.type == bfd_link_hash_defined | |
| 6768 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6769 | { | |
| 6770 | struct elf_link_hash_entry *s; | |
| 6771 | char buf[32]; | |
| 6772 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6773 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6774 | if (s == NULL) | |
| 6775 | return FALSE; | |
| 6776 | if (s->root.type == bfd_link_hash_new | |
| 6777 | || (s->root.type = bfd_link_hash_defined | |
| 6778 | && s->root.u.def.section == stub_sec)) | |
| 6779 | { | |
| 6780 | s->root.type = bfd_link_hash_defined; | |
| 6781 | s->root.u.def.section = stub_sec; | |
| 6782 | s->root.u.def.value = (stub_sec->size | |
| 6783 | + h->elf.root.u.def.value); | |
| 6784 | s->ref_regular = 1; | |
| 6785 | s->def_regular = 1; | |
| 6786 | s->ref_regular_nonweak = 1; | |
| 6787 | s->forced_local = 1; | |
| 6788 | s->non_elf = 0; | |
| 6789 | s->root.linker_def = 1; | |
| 6790 | } | |
| 6791 | } | |
| 6792 | continue; | |
| 6793 | } | |
| 6794 | if (h != NULL) | |
| 6795 | { | |
| 6796 | h->save_res = 1; | |
| 6797 | if (!h->elf.def_regular) | |
| deb0e272 | 6798 | { |
| a4b6fadd AM |
6799 | h->elf.root.type = bfd_link_hash_defined; |
| 6800 | h->elf.root.u.def.section = htab->sfpr; | |
| 6801 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6802 | h->elf.type = STT_FUNC; | |
| 6803 | h->elf.def_regular = 1; | |
| b32547cd | 6804 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6805 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6806 | writing = TRUE; | |
| deb0e272 | 6807 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6808 | { |
| 6809 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6810 | if (htab->sfpr->contents == NULL) | |
| 6811 | return FALSE; | |
| 6812 | } | |
| deb0e272 AM |
6813 | } |
| 6814 | } | |
| 6815 | if (writing) | |
| 6816 | { | |
| 6817 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6818 | if (i != parm->hi) | |
| 6819 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6820 | else | |
| 6821 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6822 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6823 | } | |
| 6824 | } | |
| 6825 | ||
| 6826 | return TRUE; | |
| 6827 | } | |
| 6828 | ||
| 6829 | static bfd_byte * | |
| 6830 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6831 | { | |
| 6832 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6833 | return p + 4; | |
| 6834 | } | |
| 6835 | ||
| 6836 | static bfd_byte * | |
| 6837 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6838 | { | |
| 6839 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6840 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6841 | p = p + 4; |
| 6842 | bfd_put_32 (abfd, BLR, p); | |
| 6843 | return p + 4; | |
| 6844 | } | |
| 6845 | ||
| 6846 | static bfd_byte * | |
| 6847 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6848 | { | |
| 6849 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6850 | return p + 4; | |
| 6851 | } | |
| 6852 | ||
| 6853 | static bfd_byte * | |
| 6854 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6855 | { | |
| a078d95a | 6856 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6857 | p = p + 4; |
| 6858 | p = restgpr0 (abfd, p, r); | |
| 6859 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6860 | p = p + 4; | |
| 6861 | if (r == 29) | |
| 6862 | { | |
| 6863 | p = restgpr0 (abfd, p, 30); | |
| 6864 | p = restgpr0 (abfd, p, 31); | |
| 6865 | } | |
| 6866 | bfd_put_32 (abfd, BLR, p); | |
| 6867 | return p + 4; | |
| 6868 | } | |
| 6869 | ||
| 6870 | static bfd_byte * | |
| 6871 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6872 | { | |
| 6873 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6874 | return p + 4; | |
| 6875 | } | |
| 6876 | ||
| 6877 | static bfd_byte * | |
| 6878 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6879 | { | |
| 6880 | p = savegpr1 (abfd, p, r); | |
| 6881 | bfd_put_32 (abfd, BLR, p); | |
| 6882 | return p + 4; | |
| 6883 | } | |
| 6884 | ||
| 6885 | static bfd_byte * | |
| 6886 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6887 | { | |
| 6888 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6889 | return p + 4; | |
| 6890 | } | |
| 6891 | ||
| 6892 | static bfd_byte * | |
| 6893 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6894 | { | |
| 6895 | p = restgpr1 (abfd, p, r); | |
| 6896 | bfd_put_32 (abfd, BLR, p); | |
| 6897 | return p + 4; | |
| 6898 | } | |
| 6899 | ||
| 6900 | static bfd_byte * | |
| 6901 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6902 | { | |
| 6903 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6904 | return p + 4; | |
| 6905 | } | |
| 6906 | ||
| 6907 | static bfd_byte * | |
| 6908 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6909 | { | |
| 6910 | p = savefpr (abfd, p, r); | |
| a078d95a | 6911 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6912 | p = p + 4; |
| 6913 | bfd_put_32 (abfd, BLR, p); | |
| 6914 | return p + 4; | |
| 6915 | } | |
| 6916 | ||
| 6917 | static bfd_byte * | |
| 6918 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6919 | { | |
| 6920 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6921 | return p + 4; | |
| 6922 | } | |
| 6923 | ||
| 6924 | static bfd_byte * | |
| 6925 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6926 | { | |
| a078d95a | 6927 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6928 | p = p + 4; |
| 6929 | p = restfpr (abfd, p, r); | |
| 6930 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6931 | p = p + 4; | |
| 6932 | if (r == 29) | |
| 6933 | { | |
| 6934 | p = restfpr (abfd, p, 30); | |
| 6935 | p = restfpr (abfd, p, 31); | |
| 6936 | } | |
| 6937 | bfd_put_32 (abfd, BLR, p); | |
| 6938 | return p + 4; | |
| 6939 | } | |
| 6940 | ||
| 6941 | static bfd_byte * | |
| 6942 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6943 | { | |
| 6944 | p = savefpr (abfd, p, r); | |
| 6945 | bfd_put_32 (abfd, BLR, p); | |
| 6946 | return p + 4; | |
| 6947 | } | |
| 6948 | ||
| 6949 | static bfd_byte * | |
| 6950 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6951 | { | |
| 6952 | p = restfpr (abfd, p, r); | |
| 6953 | bfd_put_32 (abfd, BLR, p); | |
| 6954 | return p + 4; | |
| 6955 | } | |
| 6956 | ||
| 6957 | static bfd_byte * | |
| 6958 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6959 | { | |
| 6960 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6961 | p = p + 4; | |
| 6962 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6963 | return p + 4; | |
| 6964 | } | |
| 6965 | ||
| 6966 | static bfd_byte * | |
| 6967 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6968 | { | |
| 6969 | p = savevr (abfd, p, r); | |
| 6970 | bfd_put_32 (abfd, BLR, p); | |
| 6971 | return p + 4; | |
| 6972 | } | |
| 6973 | ||
| 6974 | static bfd_byte * | |
| 6975 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6976 | { | |
| 6977 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6978 | p = p + 4; | |
| 6979 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6980 | return p + 4; | |
| 6981 | } | |
| 6982 | ||
| 6983 | static bfd_byte * | |
| 6984 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6985 | { | |
| 6986 | p = restvr (abfd, p, r); | |
| 6987 | bfd_put_32 (abfd, BLR, p); | |
| 6988 | return p + 4; | |
| 6989 | } | |
| 6990 | ||
| e86ce104 AM |
6991 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6992 | information on function code symbol entries to their corresponding | |
| 6993 | function descriptor symbol entries. */ | |
| deb0e272 | 6994 | |
| b34976b6 | 6995 | static bfd_boolean |
| 4ce794b7 | 6996 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6997 | { |
| e86ce104 | 6998 | struct bfd_link_info *info; |
| 65f38f15 | 6999 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
7000 | struct ppc_link_hash_entry *fh; |
| 7001 | struct ppc_link_hash_entry *fdh; | |
| 7002 | bfd_boolean force_local; | |
| 5bd4f169 | 7003 | |
| 50bc7936 AM |
7004 | fh = (struct ppc_link_hash_entry *) h; |
| 7005 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 7006 | return TRUE; |
| e86ce104 | 7007 | |
| 8c5b4e52 AM |
7008 | if (!fh->is_func) |
| 7009 | return TRUE; | |
| 7010 | ||
| 7011 | if (fh->elf.root.root.string[0] != '.' | |
| 7012 | || fh->elf.root.root.string[1] == '\0') | |
| 7013 | return TRUE; | |
| 7014 | ||
| 4ce794b7 | 7015 | info = inf; |
| 65f38f15 | 7016 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
7017 | if (htab == NULL) |
| 7018 | return FALSE; | |
| 5bd4f169 | 7019 | |
| 8c5b4e52 AM |
7020 | /* Find the corresponding function descriptor symbol. */ |
| 7021 | fdh = lookup_fdh (fh, htab); | |
| 7022 | ||
| c09bdfe5 AM |
7023 | /* Resolve undefined references to dot-symbols as the value |
| 7024 | in the function descriptor, if we have one in a regular object. | |
| 7025 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 7026 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
7027 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 7028 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 7029 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 7030 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
7031 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 7032 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 7033 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 7034 | &fh->elf.root.u.def.section, |
| aef36ac1 | 7035 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 7036 | { |
| b31867b6 | 7037 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 7038 | fh->elf.forced_local = 1; |
| b31867b6 AM |
7039 | fh->elf.def_regular = fdh->elf.def_regular; |
| 7040 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
7041 | } |
| 7042 | ||
| 8c5b4e52 AM |
7043 | if (!fh->elf.dynamic) |
| 7044 | { | |
| 7045 | struct plt_entry *ent; | |
| 5bd4f169 | 7046 | |
| 8c5b4e52 AM |
7047 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 7048 | if (ent->plt.refcount > 0) | |
| 7049 | break; | |
| 7050 | if (ent == NULL) | |
| 7051 | return TRUE; | |
| 7052 | } | |
| 5bd4f169 | 7053 | |
| 8c5b4e52 | 7054 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 7055 | if (fdh == NULL |
| 0e1862bb | 7056 | && !bfd_link_executable (info) |
| 50bc7936 AM |
7057 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 7058 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 7059 | { | |
| 908b32fc | 7060 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
7061 | if (fdh == NULL) |
| 7062 | return FALSE; | |
| 50bc7936 | 7063 | } |
| 648cca2c | 7064 | |
| 8c5b4e52 | 7065 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
7066 | if (fdh != NULL |
| 7067 | && fdh->fake | |
| 8c5b4e52 AM |
7068 | && (fh->elf.root.type == bfd_link_hash_defined |
| 7069 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 7070 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 7071 | |
| 8c5b4e52 AM |
7072 | /* Transfer dynamic linking information to the function descriptor. */ |
| 7073 | if (fdh != NULL) | |
| 7074 | { | |
| f5385ebf AM |
7075 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 7076 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 7077 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 7078 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
7079 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 7080 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 7081 | || fh->elf.type == STT_FUNC | |
| 7082 | || fh->elf.type == STT_GNU_IFUNC); | |
| 7083 | move_plt_plist (fh, fdh); | |
| 7084 | ||
| 7085 | if (!fdh->elf.forced_local | |
| 7086 | && fh->elf.dynindx != -1) | |
| 7087 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 7088 | return FALSE; | |
| e86ce104 AM |
7089 | } |
| 7090 | ||
| 50bc7936 AM |
7091 | /* Now that the info is on the function descriptor, clear the |
| 7092 | function code sym info. Any function code syms for which we | |
| 7093 | don't have a definition in a regular file, we force local. | |
| 7094 | This prevents a shared library from exporting syms that have | |
| 7095 | been imported from another library. Function code syms that | |
| 7096 | are really in the library we must leave global to prevent the | |
| 7097 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7098 | force_local = (!fh->elf.def_regular |
| 7099 | || fdh == NULL | |
| 7100 | || !fdh->elf.def_regular | |
| 7101 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7102 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7103 | ||
| b34976b6 | 7104 | return TRUE; |
| e86ce104 | 7105 | } |
| 40b8271b | 7106 | |
| a4b6fadd AM |
7107 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7108 | { | |
| 7109 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7110 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7111 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7112 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7113 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7114 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7115 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7116 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7117 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7118 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7119 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7120 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7121 | }; | |
| 7122 | ||
| e86ce104 | 7123 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7124 | this hook to a) provide some gcc support functions, and b) transfer |
| 7125 | dynamic linking information gathered so far on function code symbol | |
| 7126 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7127 | |
| b34976b6 | 7128 | static bfd_boolean |
| 4ce794b7 AM |
7129 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7130 | struct bfd_link_info *info) | |
| e86ce104 AM |
7131 | { |
| 7132 | struct ppc_link_hash_table *htab; | |
| 7133 | ||
| 7134 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7135 | if (htab == NULL) |
| 7136 | return FALSE; | |
| 7137 | ||
| b32547cd AM |
7138 | /* Provide any missing _save* and _rest* functions. */ |
| 7139 | if (htab->sfpr != NULL) | |
| 7140 | { | |
| 7141 | unsigned int i; | |
| 7142 | ||
| 7143 | htab->sfpr->size = 0; | |
| 7144 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7145 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7146 | return FALSE; | |
| 7147 | if (htab->sfpr->size == 0) | |
| 7148 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7149 | } | |
| 7150 | ||
| 7151 | if (bfd_link_relocatable (info)) | |
| 7152 | return TRUE; | |
| 7153 | ||
| 7154 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7155 | { |
| 7156 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7157 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7158 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7159 | if (!htab->elf.hgot->def_regular |
| 7160 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7161 | { | |
| 7162 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7163 | htab->elf.hgot->root.u.def.value = 0; | |
| 7164 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7165 | htab->elf.hgot->def_regular = 1; | |
| 7166 | htab->elf.hgot->root.linker_def = 1; | |
| 7167 | } | |
| dba6fa9b | 7168 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7169 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7170 | | STV_HIDDEN); | |
| 7171 | } | |
| c66bb0ee | 7172 | |
| 8c5b4e52 AM |
7173 | if (htab->need_func_desc_adj) |
| 7174 | { | |
| 7175 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7176 | htab->need_func_desc_adj = 0; | |
| 7177 | } | |
| 805fc799 | 7178 | |
| b34976b6 | 7179 | return TRUE; |
| e86ce104 AM |
7180 | } |
| 7181 | ||
| 8a2058b5 AM |
7182 | /* Return true if we have dynamic relocs against H that apply to |
| 7183 | read-only sections. */ | |
| a345bc8d AM |
7184 | |
| 7185 | static bfd_boolean | |
| 7186 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7187 | { | |
| 7188 | struct ppc_link_hash_entry *eh; | |
| 7189 | struct elf_dyn_relocs *p; | |
| 7190 | ||
| 7191 | eh = (struct ppc_link_hash_entry *) h; | |
| 7192 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7193 | { | |
| 7194 | asection *s = p->sec->output_section; | |
| 7195 | ||
| 7196 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7197 | return TRUE; | |
| 7198 | } | |
| 7199 | return FALSE; | |
| 7200 | } | |
| 7201 | ||
| d311bc8b AM |
7202 | /* Return true if we have dynamic relocs against H or any of its weak |
| 7203 | aliases, that apply to read-only sections. */ | |
| 7204 | ||
| 7205 | static bfd_boolean | |
| 7206 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7207 | { | |
| 7208 | struct ppc_link_hash_entry *eh; | |
| 7209 | ||
| 7210 | eh = (struct ppc_link_hash_entry *) h; | |
| 7211 | do | |
| 7212 | { | |
| 7213 | if (readonly_dynrelocs (&eh->elf)) | |
| 7214 | return TRUE; | |
| 7215 | eh = eh->weakref; | |
| 7216 | } while (eh != NULL && &eh->elf != h); | |
| 7217 | ||
| 7218 | return FALSE; | |
| 7219 | } | |
| 8a2058b5 | 7220 | |
| 8a9e8e72 AM |
7221 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7222 | ||
| 7223 | static bfd_boolean | |
| 7224 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7225 | { | |
| 7226 | struct elf_dyn_relocs *p; | |
| 7227 | ||
| 7228 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7229 | if (p->pc_count != 0) | |
| 7230 | return TRUE; | |
| 7231 | return FALSE; | |
| 7232 | } | |
| 7233 | ||
| 8a2058b5 AM |
7234 | /* Return true if a global entry stub will be created for H. Valid |
| 7235 | for ELFv2 before plt entries have been allocated. */ | |
| 7236 | ||
| 7237 | static bfd_boolean | |
| 7238 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7239 | { | |
| 7240 | struct plt_entry *pent; | |
| 7241 | ||
| 7242 | if (!h->pointer_equality_needed | |
| 7243 | || h->def_regular) | |
| 7244 | return FALSE; | |
| 7245 | ||
| 7246 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7247 | if (pent->plt.refcount > 0 | |
| 7248 | && pent->addend == 0) | |
| 7249 | return TRUE; | |
| 7250 | ||
| 7251 | return FALSE; | |
| 7252 | } | |
| 7253 | ||
| e86ce104 AM |
7254 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7255 | regular object. The current definition is in some section of the | |
| 7256 | dynamic object, but we're not including those sections. We have to | |
| 7257 | change the definition to something the rest of the link can | |
| 7258 | understand. */ | |
| 7259 | ||
| b34976b6 | 7260 | static bfd_boolean |
| 4ce794b7 AM |
7261 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7262 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7263 | { |
| 7264 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7265 | asection *s; |
| e86ce104 AM |
7266 | |
| 7267 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7268 | if (htab == NULL) |
| 7269 | return FALSE; | |
| e86ce104 AM |
7270 | |
| 7271 | /* Deal with function syms. */ | |
| 7272 | if (h->type == STT_FUNC | |
| e054468f | 7273 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7274 | || h->needs_plt) |
| e86ce104 AM |
7275 | { |
| 7276 | /* Clear procedure linkage table information for any symbol that | |
| 7277 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7278 | struct plt_entry *ent; |
| 7279 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7280 | if (ent->plt.refcount > 0) | |
| 7281 | break; | |
| 8387904d | 7282 | if (ent == NULL |
| e054468f AM |
7283 | || (h->type != STT_GNU_IFUNC |
| 7284 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7285 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| a4b6fadd AM |
7286 | && h->root.type == bfd_link_hash_undefweak))) |
| 7287 | || ((struct ppc_link_hash_entry *) h)->save_res) | |
| 40b8271b | 7288 | { |
| 411e1bfb | 7289 | h->plt.plist = NULL; |
| f5385ebf | 7290 | h->needs_plt = 0; |
| d1eca1e4 | 7291 | h->pointer_equality_needed = 0; |
| 40b8271b | 7292 | } |
| 8a2058b5 | 7293 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7294 | { |
| d1eca1e4 AM |
7295 | /* Taking a function's address in a read/write section |
| 7296 | doesn't require us to define the function symbol in the | |
| 7297 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7298 | be used instead. The reason we prefer a few more dynamic |
| 7299 | relocs is that calling via a global entry stub costs a | |
| 7300 | few more instructions, and pointer_equality_needed causes | |
| 7301 | extra work in ld.so when resolving these symbols. */ | |
| 7302 | if (global_entry_stub (h) | |
| d311bc8b | 7303 | && !alias_readonly_dynrelocs (h)) |
| d1eca1e4 AM |
7304 | { |
| 7305 | h->pointer_equality_needed = 0; | |
| 8a2058b5 AM |
7306 | /* After adjust_dynamic_symbol, non_got_ref set in |
| 7307 | the non-pic case means that dyn_relocs for this | |
| 7308 | symbol should be discarded. */ | |
| d1eca1e4 AM |
7309 | h->non_got_ref = 0; |
| 7310 | } | |
| 7311 | ||
| a345bc8d AM |
7312 | /* If making a plt entry, then we don't need copy relocs. */ |
| 7313 | return TRUE; | |
| 7314 | } | |
| 5bd4f169 | 7315 | } |
| bbd7ec4a | 7316 | else |
| 411e1bfb | 7317 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7318 | |
| 7319 | /* If this is a weak symbol, and there is a real definition, the | |
| 7320 | processor independent code will have arranged for us to see the | |
| 7321 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7322 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7323 | { |
| f6e332e6 AM |
7324 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7325 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7326 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7327 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7328 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7329 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7330 | return TRUE; |
| 5bd4f169 AM |
7331 | } |
| 7332 | ||
| 5bd4f169 AM |
7333 | /* If we are creating a shared library, we must presume that the |
| 7334 | only references to the symbol are via the global offset table. | |
| 7335 | For such cases we need not do anything here; the relocations will | |
| 7336 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7337 | if (bfd_link_pic (info)) |
| b34976b6 | 7338 | return TRUE; |
| 5bd4f169 | 7339 | |
| 65f38f15 AM |
7340 | /* If there are no references to this symbol that do not use the |
| 7341 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7342 | if (!h->non_got_ref) |
| b34976b6 | 7343 | return TRUE; |
| 65f38f15 | 7344 | |
| b186458a | 7345 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7346 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7347 | |
| d93d1c80 AM |
7348 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7349 | || info->nocopyreloc | |
| a127494f | 7350 | |
| d93d1c80 AM |
7351 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7352 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| d311bc8b | 7353 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7354 | |
| d93d1c80 AM |
7355 | /* Protected variables do not work with .dynbss. The copy in |
| 7356 | .dynbss won't be used by the shared library with the protected | |
| 7357 | definition for the variable. Text relocations are preferable | |
| 7358 | to an incorrect program. */ | |
| 7359 | || h->protected_def) | |
| a127494f AM |
7360 | { |
| 7361 | h->non_got_ref = 0; | |
| 7362 | return TRUE; | |
| 7363 | } | |
| 7364 | ||
| 5d35169e | 7365 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7366 | { |
| 7367 | /* We should never get here, but unfortunately there are versions | |
| 7368 | of gcc out there that improperly (for this ABI) put initialized | |
| 7369 | function pointers, vtable refs and suchlike in read-only | |
| 7370 | sections. Allow them to proceed, but warn that this might | |
| 7371 | break at runtime. */ | |
| 25f53a85 | 7372 | info->callbacks->einfo |
| bc30df16 | 7373 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7374 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7375 | h->root.root.string); |
| 7376 | } | |
| 5d35169e AM |
7377 | |
| 7378 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7379 | is not a function. */ | |
| 7380 | ||
| 5bd4f169 AM |
7381 | /* We must allocate the symbol in our .dynbss section, which will |
| 7382 | become part of the .bss section of the executable. There will be | |
| 7383 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7384 | object will contain position independent code, so all references | |
| 7385 | from the dynamic object to this symbol will go through the global | |
| 7386 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7387 | determine the address it must put in the global offset table, so | |
| 7388 | both the dynamic object and the regular object will refer to the | |
| 7389 | same memory location for the variable. */ | |
| 5bd4f169 | 7390 | |
| 04c9666a AM |
7391 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7392 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7393 | runtime process image. We need to remember the offset into the |
| 7394 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7395 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7396 | { |
| eea6121a | 7397 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7398 | h->needs_copy = 1; |
| 5bd4f169 AM |
7399 | } |
| 7400 | ||
| 4ce794b7 | 7401 | s = htab->dynbss; |
| 5bd4f169 | 7402 | |
| 6cabe1ea | 7403 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7404 | } |
| 7405 | ||
| e86ce104 AM |
7406 | /* If given a function descriptor symbol, hide both the function code |
| 7407 | sym and the descriptor. */ | |
| 7408 | static void | |
| 4ce794b7 AM |
7409 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7410 | struct elf_link_hash_entry *h, | |
| 7411 | bfd_boolean force_local) | |
| e86ce104 | 7412 | { |
| 34814b9f | 7413 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7414 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7415 | ||
| 34814b9f AM |
7416 | eh = (struct ppc_link_hash_entry *) h; |
| 7417 | if (eh->is_func_descriptor) | |
| e86ce104 | 7418 | { |
| 34814b9f | 7419 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7420 | |
| 721956f4 | 7421 | if (fh == NULL) |
| d1329ca3 AM |
7422 | { |
| 7423 | const char *p, *q; | |
| b8ac2841 | 7424 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7425 | char save; |
| 7426 | ||
| 7427 | /* We aren't supposed to use alloca in BFD because on | |
| 7428 | systems which do not have alloca the version in libiberty | |
| 7429 | calls xmalloc, which might cause the program to crash | |
| 7430 | when it runs out of memory. This function doesn't have a | |
| 7431 | return status, so there's no way to gracefully return an | |
| 7432 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7433 | accessed; It's either a string in an ELF string table, |
| 7434 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7435 | |
| 34814b9f | 7436 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7437 | save = *p; |
| 7438 | *(char *) p = '.'; | |
| 34814b9f | 7439 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7440 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7441 | *(char *) p = save; |
| 7442 | ||
| 7443 | /* Unfortunately, if it so happens that the string we were | |
| 7444 | looking for was allocated immediately before this string, | |
| 7445 | then we overwrote the string terminator. That's the only | |
| 7446 | reason the lookup should fail. */ | |
| 7447 | if (fh == NULL) | |
| 7448 | { | |
| 34814b9f AM |
7449 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7450 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7451 | --q, --p; |
| 34814b9f AM |
7452 | if (q < eh->elf.root.root.string && *p == '.') |
| 7453 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7454 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7455 | } |
| 7456 | if (fh != NULL) | |
| 7457 | { | |
| 34814b9f AM |
7458 | eh->oh = fh; |
| 7459 | fh->oh = eh; | |
| d1329ca3 AM |
7460 | } |
| 7461 | } | |
| e86ce104 | 7462 | if (fh != NULL) |
| 34814b9f | 7463 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7464 | } |
| 7465 | } | |
| 7466 | ||
| 411e1bfb | 7467 | static bfd_boolean |
| 8843416a AM |
7468 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7469 | Elf_Internal_Sym **symp, | |
| 7470 | asection **symsecp, | |
| f961d9dd | 7471 | unsigned char **tls_maskp, |
| 8843416a AM |
7472 | Elf_Internal_Sym **locsymsp, |
| 7473 | unsigned long r_symndx, | |
| 7474 | bfd *ibfd) | |
| 411e1bfb | 7475 | { |
| 0ffa91dd | 7476 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7477 | |
| 7478 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7479 | { | |
| 7480 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7481 | struct elf_link_hash_entry *h; | |
| 7482 | ||
| 7483 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7484 | h = elf_follow_link (h); |
| 411e1bfb AM |
7485 | |
| 7486 | if (hp != NULL) | |
| 7487 | *hp = h; | |
| 7488 | ||
| 7489 | if (symp != NULL) | |
| 7490 | *symp = NULL; | |
| 7491 | ||
| 7492 | if (symsecp != NULL) | |
| 7493 | { | |
| 7494 | asection *symsec = NULL; | |
| 7495 | if (h->root.type == bfd_link_hash_defined | |
| 7496 | || h->root.type == bfd_link_hash_defweak) | |
| 7497 | symsec = h->root.u.def.section; | |
| 7498 | *symsecp = symsec; | |
| 7499 | } | |
| 7500 | ||
| e7b938ca | 7501 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7502 | { |
| 7503 | struct ppc_link_hash_entry *eh; | |
| 7504 | ||
| 7505 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7506 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7507 | } |
| 7508 | } | |
| 7509 | else | |
| 7510 | { | |
| 7511 | Elf_Internal_Sym *sym; | |
| 7512 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7513 | ||
| 7514 | if (locsyms == NULL) | |
| 7515 | { | |
| 7516 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7517 | if (locsyms == NULL) | |
| 7518 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7519 | symtab_hdr->sh_info, | |
| 7520 | 0, NULL, NULL, NULL); | |
| 7521 | if (locsyms == NULL) | |
| 7522 | return FALSE; | |
| 7523 | *locsymsp = locsyms; | |
| 7524 | } | |
| 7525 | sym = locsyms + r_symndx; | |
| 7526 | ||
| 7527 | if (hp != NULL) | |
| 7528 | *hp = NULL; | |
| 7529 | ||
| 7530 | if (symp != NULL) | |
| 7531 | *symp = sym; | |
| 7532 | ||
| 7533 | if (symsecp != NULL) | |
| cb33740c | 7534 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7535 | |
| e7b938ca | 7536 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7537 | { |
| 7538 | struct got_entry **lgot_ents; | |
| f961d9dd | 7539 | unsigned char *tls_mask; |
| 411e1bfb | 7540 | |
| e7b938ca | 7541 | tls_mask = NULL; |
| 411e1bfb AM |
7542 | lgot_ents = elf_local_got_ents (ibfd); |
| 7543 | if (lgot_ents != NULL) | |
| 7544 | { | |
| e054468f AM |
7545 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7546 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7547 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7548 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7549 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7550 | } |
| e7b938ca | 7551 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7552 | } |
| 7553 | } | |
| 7554 | return TRUE; | |
| 7555 | } | |
| 7556 | ||
| e7b938ca | 7557 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7558 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7559 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7560 | |
| 7561 | static int | |
| f961d9dd | 7562 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7563 | unsigned long *toc_symndx, |
| 7564 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7565 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7566 | const Elf_Internal_Rela *rel, |
| 7567 | bfd *ibfd) | |
| 411e1bfb AM |
7568 | { |
| 7569 | unsigned long r_symndx; | |
| 0d4792f7 | 7570 | int next_r; |
| 411e1bfb AM |
7571 | struct elf_link_hash_entry *h; |
| 7572 | Elf_Internal_Sym *sym; | |
| 7573 | asection *sec; | |
| 7574 | bfd_vma off; | |
| 7575 | ||
| 7576 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7577 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7578 | return 0; |
| 411e1bfb | 7579 | |
| e7b938ca | 7580 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7581 | || sec == NULL |
| 6bee8834 | 7582 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7583 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7584 | return 1; |
| 411e1bfb AM |
7585 | |
| 7586 | /* Look inside a TOC section too. */ | |
| 7587 | if (h != NULL) | |
| 7588 | { | |
| 7589 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7590 | off = h->root.u.def.value; | |
| 7591 | } | |
| 7592 | else | |
| 7593 | off = sym->st_value; | |
| 7594 | off += rel->r_addend; | |
| 7595 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7596 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7597 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7598 | if (toc_symndx != NULL) |
| 7599 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7600 | if (toc_addend != NULL) |
| 7601 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7602 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7603 | return 0; | |
| 854b41e7 | 7604 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7605 | && (next_r == -1 || next_r == -2)) |
| 7606 | return 1 - next_r; | |
| 951fd09b | 7607 | return 1; |
| 411e1bfb AM |
7608 | } |
| 7609 | ||
| 3b421ab3 AM |
7610 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7611 | ||
| 7612 | static struct tocsave_entry * | |
| 7613 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7614 | enum insert_option insert, | |
| 7615 | Elf_Internal_Sym **local_syms, | |
| 7616 | const Elf_Internal_Rela *irela, | |
| 7617 | bfd *ibfd) | |
| 7618 | { | |
| 7619 | unsigned long r_indx; | |
| 7620 | struct elf_link_hash_entry *h; | |
| 7621 | Elf_Internal_Sym *sym; | |
| 7622 | struct tocsave_entry ent, *p; | |
| 7623 | hashval_t hash; | |
| 7624 | struct tocsave_entry **slot; | |
| 7625 | ||
| 7626 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7627 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7628 | return NULL; | |
| 7629 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7630 | { | |
| 4eca0228 | 7631 | _bfd_error_handler |
| 3b421ab3 AM |
7632 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); |
| 7633 | return NULL; | |
| 7634 | } | |
| 7635 | ||
| 7636 | if (h != NULL) | |
| 7637 | ent.offset = h->root.u.def.value; | |
| 7638 | else | |
| 7639 | ent.offset = sym->st_value; | |
| 7640 | ent.offset += irela->r_addend; | |
| 7641 | ||
| 7642 | hash = tocsave_htab_hash (&ent); | |
| 7643 | slot = ((struct tocsave_entry **) | |
| 7644 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7645 | if (slot == NULL) | |
| 7646 | return NULL; | |
| 7647 | ||
| 7648 | if (*slot == NULL) | |
| 7649 | { | |
| 7650 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7651 | if (p == NULL) | |
| 7652 | return NULL; | |
| 7653 | *p = ent; | |
| 7654 | *slot = p; | |
| 7655 | } | |
| 7656 | return *slot; | |
| 7657 | } | |
| 7658 | ||
| 754021d0 | 7659 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7660 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7661 | |
| 7662 | static bfd_boolean | |
| 7663 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7664 | { | |
| 7665 | struct ppc_link_hash_entry *eh; | |
| 7666 | asection *sym_sec; | |
| 74f0fb50 | 7667 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7668 | |
| 7669 | if (h->root.type == bfd_link_hash_indirect) | |
| 7670 | return TRUE; | |
| 7671 | ||
| 754021d0 AM |
7672 | if (h->root.type != bfd_link_hash_defined |
| 7673 | && h->root.type != bfd_link_hash_defweak) | |
| 7674 | return TRUE; | |
| 7675 | ||
| 7676 | eh = (struct ppc_link_hash_entry *) h; | |
| 7677 | if (eh->adjust_done) | |
| 7678 | return TRUE; | |
| 7679 | ||
| 7680 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7681 | opd = get_opd_info (sym_sec); |
| 7682 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7683 | { |
| 51aecdc5 | 7684 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7685 | if (adjust == -1) |
| 7686 | { | |
| 7687 | /* This entry has been deleted. */ | |
| b3fac117 | 7688 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7689 | if (dsec == NULL) |
| 7690 | { | |
| 7691 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7692 | if (discarded_section (dsec)) |
| 81688140 | 7693 | { |
| b3fac117 | 7694 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7695 | break; |
| 7696 | } | |
| 7697 | } | |
| 4025353c | 7698 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7699 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7700 | } |
| 7701 | else | |
| 7702 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7703 | eh->adjust_done = 1; |
| 7704 | } | |
| 7705 | return TRUE; | |
| 7706 | } | |
| 7707 | ||
| 8c1d1bb8 | 7708 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7709 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7710 | have already been determined. */ |
| 7711 | ||
| 7712 | static bfd_boolean | |
| 7713 | dec_dynrel_count (bfd_vma r_info, | |
| 7714 | asection *sec, | |
| 7715 | struct bfd_link_info *info, | |
| 7716 | Elf_Internal_Sym **local_syms, | |
| 7717 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7718 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7719 | { |
| 7720 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7721 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7722 | |
| 7723 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7724 | should be kept in sync with the code in check_relocs. */ | |
| 7725 | r_type = ELF64_R_TYPE (r_info); | |
| 7726 | switch (r_type) | |
| 7727 | { | |
| 7728 | default: | |
| 7729 | return TRUE; | |
| 7730 | ||
| 7731 | case R_PPC64_TPREL16: | |
| 7732 | case R_PPC64_TPREL16_LO: | |
| 7733 | case R_PPC64_TPREL16_HI: | |
| 7734 | case R_PPC64_TPREL16_HA: | |
| 7735 | case R_PPC64_TPREL16_DS: | |
| 7736 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7737 | case R_PPC64_TPREL16_HIGH: |
| 7738 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7739 | case R_PPC64_TPREL16_HIGHER: |
| 7740 | case R_PPC64_TPREL16_HIGHERA: | |
| 7741 | case R_PPC64_TPREL16_HIGHEST: | |
| 7742 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 7743 | if (!bfd_link_pic (info)) |
| 8c1d1bb8 AM |
7744 | return TRUE; |
| 7745 | ||
| 7746 | case R_PPC64_TPREL64: | |
| 7747 | case R_PPC64_DTPMOD64: | |
| 7748 | case R_PPC64_DTPREL64: | |
| 7749 | case R_PPC64_ADDR64: | |
| 7750 | case R_PPC64_REL30: | |
| 7751 | case R_PPC64_REL32: | |
| 7752 | case R_PPC64_REL64: | |
| 7753 | case R_PPC64_ADDR14: | |
| 7754 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7755 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7756 | case R_PPC64_ADDR16: | |
| 7757 | case R_PPC64_ADDR16_DS: | |
| 7758 | case R_PPC64_ADDR16_HA: | |
| 7759 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7760 | case R_PPC64_ADDR16_HIGH: |
| 7761 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7762 | case R_PPC64_ADDR16_HIGHER: |
| 7763 | case R_PPC64_ADDR16_HIGHERA: | |
| 7764 | case R_PPC64_ADDR16_HIGHEST: | |
| 7765 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7766 | case R_PPC64_ADDR16_LO: | |
| 7767 | case R_PPC64_ADDR16_LO_DS: | |
| 7768 | case R_PPC64_ADDR24: | |
| 7769 | case R_PPC64_ADDR32: | |
| 7770 | case R_PPC64_UADDR16: | |
| 7771 | case R_PPC64_UADDR32: | |
| 7772 | case R_PPC64_UADDR64: | |
| 7773 | case R_PPC64_TOC: | |
| 7774 | break; | |
| 7775 | } | |
| 7776 | ||
| 7777 | if (local_syms != NULL) | |
| 7778 | { | |
| 7779 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7780 | bfd *ibfd = sec->owner; |
| 7781 | ||
| 7782 | r_symndx = ELF64_R_SYM (r_info); | |
| 7783 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7784 | return FALSE; | |
| 7785 | } | |
| 7786 | ||
| 0e1862bb | 7787 | if ((bfd_link_pic (info) |
| 1d483afe | 7788 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7789 | || (h != NULL |
| 198f1157 | 7790 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7791 | || h->root.type == bfd_link_hash_defweak |
| 7792 | || !h->def_regular)))) | |
| 7793 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7794 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7795 | && h != NULL |
| 7796 | && (h->root.type == bfd_link_hash_defweak | |
| 7797 | || !h->def_regular))) | |
| 7798 | ; | |
| 7799 | else | |
| 7800 | return TRUE; | |
| 7801 | ||
| 7802 | if (h != NULL) | |
| 6edfbbad | 7803 | { |
| 19e08130 AM |
7804 | struct elf_dyn_relocs *p; |
| 7805 | struct elf_dyn_relocs **pp; | |
| 7806 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7807 | ||
| 7808 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7809 | with local syms for a given section. Also, symbol flags are | |
| 7810 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7811 | report a dynreloc miscount. */ | |
| 7812 | if (*pp == NULL && info->gc_sections) | |
| 7813 | return TRUE; | |
| 7814 | ||
| 7815 | while ((p = *pp) != NULL) | |
| 60124e18 | 7816 | { |
| 19e08130 AM |
7817 | if (p->sec == sec) |
| 7818 | { | |
| 7819 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7820 | p->pc_count -= 1; | |
| 7821 | p->count -= 1; | |
| 7822 | if (p->count == 0) | |
| 7823 | *pp = p->next; | |
| 7824 | return TRUE; | |
| 7825 | } | |
| 7826 | pp = &p->next; | |
| 60124e18 | 7827 | } |
| 6edfbbad | 7828 | } |
| 19e08130 AM |
7829 | else |
| 7830 | { | |
| 7831 | struct ppc_dyn_relocs *p; | |
| 7832 | struct ppc_dyn_relocs **pp; | |
| 7833 | void *vpp; | |
| 7834 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7835 | |
| 19e08130 AM |
7836 | if (local_syms == NULL) |
| 7837 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7838 | if (sym_sec == NULL) | |
| 7839 | sym_sec = sec; | |
| c57da1a7 | 7840 | |
| 19e08130 AM |
7841 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7842 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7843 | ||
| 7844 | if (*pp == NULL && info->gc_sections) | |
| 7845 | return TRUE; | |
| 7846 | ||
| 7847 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7848 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7849 | { |
| 19e08130 AM |
7850 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7851 | { | |
| 7852 | p->count -= 1; | |
| 7853 | if (p->count == 0) | |
| 7854 | *pp = p->next; | |
| 7855 | return TRUE; | |
| 7856 | } | |
| 7857 | pp = &p->next; | |
| 8c1d1bb8 | 7858 | } |
| 8c1d1bb8 AM |
7859 | } |
| 7860 | ||
| 695344c0 | 7861 | /* xgettext:c-format */ |
| 8de848d8 | 7862 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7863 | sec->owner, sec); |
| 8c1d1bb8 AM |
7864 | bfd_set_error (bfd_error_bad_value); |
| 7865 | return FALSE; | |
| 7866 | } | |
| 7867 | ||
| 754021d0 AM |
7868 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7869 | only remove those associated with functions in discarded link-once | |
| 7870 | sections, or weakly defined functions that have been overridden. It | |
| 7871 | would be possible to remove many more entries for statically linked | |
| 7872 | applications. */ | |
| 7873 | ||
| b34976b6 | 7874 | bfd_boolean |
| e7d1c40c | 7875 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7876 | { |
| 7877 | bfd *ibfd; | |
| 754021d0 | 7878 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7879 | asection *need_pad = NULL; |
| e7d1c40c AM |
7880 | struct ppc_link_hash_table *htab; |
| 7881 | ||
| 7882 | htab = ppc_hash_table (info); | |
| 7883 | if (htab == NULL) | |
| 7884 | return FALSE; | |
| 1e2f5b6e | 7885 | |
| c72f2fb2 | 7886 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7887 | { |
| 7888 | asection *sec; | |
| 7889 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7890 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7891 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7892 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7893 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7894 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7895 | |
| 854b41e7 AM |
7896 | if (!is_ppc64_elf (ibfd)) |
| 7897 | continue; | |
| 7898 | ||
| 1e2f5b6e | 7899 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7900 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7901 | continue; |
| 7902 | ||
| dbaa2011 | 7903 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7904 | continue; |
| 7905 | ||
| 1e2f5b6e AM |
7906 | if (sec->output_section == bfd_abs_section_ptr) |
| 7907 | continue; | |
| 7908 | ||
| 7909 | /* Look through the section relocs. */ | |
| 7910 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7911 | continue; | |
| 7912 | ||
| 6cdc0ccc | 7913 | local_syms = NULL; |
| 0ffa91dd | 7914 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7915 | |
| 7916 | /* Read the relocations. */ | |
| 4ce794b7 | 7917 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7918 | info->keep_memory); |
| 1e2f5b6e | 7919 | if (relstart == NULL) |
| b34976b6 | 7920 | return FALSE; |
| 1e2f5b6e AM |
7921 | |
| 7922 | /* First run through the relocs to check they are sane, and to | |
| 7923 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7924 | need_edit = FALSE; |
| 51aecdc5 | 7925 | broken = FALSE; |
| 3f764659 | 7926 | need_pad = sec; |
| 1e2f5b6e | 7927 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7928 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7929 | { |
| 04c9666a | 7930 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7931 | unsigned long r_symndx; |
| 7932 | asection *sym_sec; | |
| 7933 | struct elf_link_hash_entry *h; | |
| 7934 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7935 | bfd_vma offset; |
| 1e2f5b6e | 7936 | |
| 51aecdc5 | 7937 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7938 | only interested in the reloc pointing to a function entry |
| 7939 | point. */ | |
| 51aecdc5 AM |
7940 | offset = rel->r_offset; |
| 7941 | if (rel + 1 == relend | |
| 7942 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7943 | { |
| 7944 | /* If someone messes with .opd alignment then after a | |
| 7945 | "ld -r" we might have padding in the middle of .opd. | |
| 7946 | Also, there's nothing to prevent someone putting | |
| 7947 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7948 | optimization for them! */ |
| 3f764659 | 7949 | broken_opd: |
| 4eca0228 | 7950 | _bfd_error_handler |
| d003868e | 7951 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7952 | broken = TRUE; |
| 1e2f5b6e AM |
7953 | break; |
| 7954 | } | |
| 7955 | ||
| 50bc7936 AM |
7956 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7957 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7958 | { | |
| 4eca0228 | 7959 | _bfd_error_handler |
| 695344c0 | 7960 | /* xgettext:c-format */ |
| d003868e AM |
7961 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7962 | ibfd, r_type); | |
| 51aecdc5 | 7963 | broken = TRUE; |
| 50bc7936 AM |
7964 | break; |
| 7965 | } | |
| 7966 | ||
| 1e2f5b6e | 7967 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7968 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7969 | r_symndx, ibfd)) | |
| 50bc7936 | 7970 | goto error_ret; |
| 1e2f5b6e AM |
7971 | |
| 7972 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7973 | { | |
| 411e1bfb AM |
7974 | const char *sym_name; |
| 7975 | if (h != NULL) | |
| 7976 | sym_name = h->root.root.string; | |
| 7977 | else | |
| 26c61ae5 L |
7978 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7979 | sym_sec); | |
| 411e1bfb | 7980 | |
| 4eca0228 | 7981 | _bfd_error_handler |
| 695344c0 | 7982 | /* xgettext:c-format */ |
| d003868e AM |
7983 | (_("%B: undefined sym `%s' in .opd section"), |
| 7984 | ibfd, sym_name); | |
| 51aecdc5 | 7985 | broken = TRUE; |
| 1e2f5b6e AM |
7986 | break; |
| 7987 | } | |
| 7988 | ||
| 51020317 AM |
7989 | /* opd entries are always for functions defined in the |
| 7990 | current input bfd. If the symbol isn't defined in the | |
| 7991 | input bfd, then we won't be using the function in this | |
| 7992 | bfd; It must be defined in a linkonce section in another | |
| 7993 | bfd, or is weak. It's also possible that we are | |
| 7994 | discarding the function due to a linker script /DISCARD/, | |
| 7995 | which we test for via the output_section. */ | |
| 7996 | if (sym_sec->owner != ibfd | |
| 7997 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7998 | need_edit = TRUE; |
| 1e2f5b6e | 7999 | |
| 50bc7936 | 8000 | rel += 2; |
| 51aecdc5 AM |
8001 | if (rel + 1 == relend |
| 8002 | || (rel + 2 < relend | |
| 8003 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 8004 | ++rel; | |
| 8005 | ||
| 8006 | if (rel == relend) | |
| 3f764659 JJ |
8007 | { |
| 8008 | if (sec->size == offset + 24) | |
| 8009 | { | |
| 8010 | need_pad = NULL; | |
| 8011 | break; | |
| 8012 | } | |
| 51aecdc5 | 8013 | if (sec->size == offset + 16) |
| 3f764659 JJ |
8014 | { |
| 8015 | cnt_16b++; | |
| 8016 | break; | |
| 8017 | } | |
| 8018 | goto broken_opd; | |
| 8019 | } | |
| 3f764659 JJ |
8020 | else if (rel + 1 < relend |
| 8021 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 8022 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 8023 | { | |
| 51aecdc5 AM |
8024 | if (rel[0].r_offset == offset + 16) |
| 8025 | cnt_16b++; | |
| 8026 | else if (rel[0].r_offset != offset + 24) | |
| 8027 | goto broken_opd; | |
| 3f764659 JJ |
8028 | } |
| 8029 | else | |
| 8030 | goto broken_opd; | |
| 1e2f5b6e AM |
8031 | } |
| 8032 | ||
| e7d1c40c | 8033 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 8034 | |
| 51aecdc5 | 8035 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
8036 | { |
| 8037 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 8038 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 8039 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 8040 | bfd_byte *new_contents; |
| 74f0fb50 AM |
8041 | bfd_size_type amt; |
| 8042 | ||
| 983bddc8 | 8043 | new_contents = NULL; |
| 51aecdc5 | 8044 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 8045 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 8046 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
8047 | if (opd->adjust == NULL) |
| 8048 | return FALSE; | |
| 8049 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
8050 | |
| 8051 | /* This seems a waste of time as input .opd sections are all | |
| 8052 | zeros as generated by gcc, but I suppose there's no reason | |
| 8053 | this will always be so. We might start putting something in | |
| 8054 | the third word of .opd entries. */ | |
| 8055 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 8056 | { | |
| eea6121a AM |
8057 | bfd_byte *loc; |
| 8058 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 8059 | { |
| eea6121a AM |
8060 | if (loc != NULL) |
| 8061 | free (loc); | |
| 50bc7936 | 8062 | error_ret: |
| 6cdc0ccc AM |
8063 | if (local_syms != NULL |
| 8064 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8065 | free (local_syms); | |
| 6cdc0ccc AM |
8066 | if (elf_section_data (sec)->relocs != relstart) |
| 8067 | free (relstart); | |
| b34976b6 | 8068 | return FALSE; |
| 6cdc0ccc | 8069 | } |
| 1e2f5b6e AM |
8070 | sec->contents = loc; |
| 8071 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8072 | } | |
| 8073 | ||
| 8074 | elf_section_data (sec)->relocs = relstart; | |
| 8075 | ||
| 3f764659 | 8076 | new_contents = sec->contents; |
| 3f764659 JJ |
8077 | if (add_aux_fields) |
| 8078 | { | |
| 8079 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 8080 | if (new_contents == NULL) | |
| 8081 | return FALSE; | |
| 51aecdc5 | 8082 | need_pad = NULL; |
| 3f764659 | 8083 | } |
| b4f4e59f AM |
8084 | wptr = new_contents; |
| 8085 | rptr = sec->contents; | |
| 1e2f5b6e | 8086 | write_rel = relstart; |
| 51aecdc5 | 8087 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8088 | { |
| 50bc7936 AM |
8089 | unsigned long r_symndx; |
| 8090 | asection *sym_sec; | |
| 8091 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8092 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8093 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8094 | long opd_ent_size; |
| 8095 | Elf_Internal_Rela *next_rel; | |
| 8096 | bfd_boolean skip; | |
| 50bc7936 AM |
8097 | |
| 8098 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8099 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8100 | r_symndx, ibfd)) |
| 50bc7936 AM |
8101 | goto error_ret; |
| 8102 | ||
| 51aecdc5 AM |
8103 | next_rel = rel + 2; |
| 8104 | if (next_rel + 1 == relend | |
| 8105 | || (next_rel + 2 < relend | |
| 8106 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8107 | ++next_rel; | |
| 8108 | ||
| 8109 | /* See if the .opd entry is full 24 byte or | |
| 8110 | 16 byte (with fd_aux entry overlapped with next | |
| 8111 | fd_func). */ | |
| 8112 | opd_ent_size = 24; | |
| 8113 | if (next_rel == relend) | |
| 1e2f5b6e | 8114 | { |
| 51aecdc5 | 8115 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8116 | opd_ent_size = 16; |
| 51aecdc5 AM |
8117 | } |
| 8118 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8119 | opd_ent_size = 16; | |
| 3f764659 | 8120 | |
| 51aecdc5 AM |
8121 | if (h != NULL |
| 8122 | && h->root.root.string[0] == '.') | |
| 8123 | { | |
| 8c5b4e52 AM |
8124 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8125 | if (fdh != NULL) | |
| 8126 | { | |
| 8127 | fdh = ppc_follow_link (fdh); | |
| 8128 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8129 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8130 | fdh = NULL; | |
| 8131 | } | |
| 51aecdc5 | 8132 | } |
| 1e2f5b6e | 8133 | |
| 51aecdc5 AM |
8134 | skip = (sym_sec->owner != ibfd |
| 8135 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8136 | if (skip) | |
| 8137 | { | |
| 8138 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8139 | { |
| 51aecdc5 AM |
8140 | /* Arrange for the function descriptor sym |
| 8141 | to be dropped. */ | |
| 8142 | fdh->elf.root.u.def.value = 0; | |
| 8143 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8144 | } |
| 51aecdc5 | 8145 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8146 | |
| 0e1862bb | 8147 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8148 | rel = next_rel; |
| 8149 | else | |
| 8150 | while (1) | |
| 8151 | { | |
| 8152 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8153 | NULL, h, sym)) | |
| 8154 | goto error_ret; | |
| 754021d0 | 8155 | |
| 51aecdc5 AM |
8156 | if (++rel == next_rel) |
| 8157 | break; | |
| 1e2f5b6e | 8158 | |
| 51aecdc5 AM |
8159 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8160 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8161 | r_symndx, ibfd)) | |
| 8162 | goto error_ret; | |
| 8163 | } | |
| 50bc7936 AM |
8164 | } |
| 8165 | else | |
| 1e2f5b6e | 8166 | { |
| 51aecdc5 AM |
8167 | /* We'll be keeping this opd entry. */ |
| 8168 | long adjust; | |
| 8169 | ||
| 8170 | if (fdh != NULL) | |
| 8171 | { | |
| 8172 | /* Redefine the function descriptor symbol to | |
| 8173 | this location in the opd section. It is | |
| 8174 | necessary to update the value here rather | |
| 8175 | than using an array of adjustments as we do | |
| 8176 | for local symbols, because various places | |
| 8177 | in the generic ELF code use the value | |
| 8178 | stored in u.def.value. */ | |
| 8179 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8180 | fdh->adjust_done = 1; | |
| 8181 | } | |
| 8182 | ||
| 8183 | /* Local syms are a bit tricky. We could | |
| 8184 | tweak them as they can be cached, but | |
| 8185 | we'd need to look through the local syms | |
| 8186 | for the function descriptor sym which we | |
| 8187 | don't have at the moment. So keep an | |
| 8188 | array of adjustments. */ | |
| 8189 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8190 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8191 | ||
| 8192 | if (wptr != rptr) | |
| 8193 | memcpy (wptr, rptr, opd_ent_size); | |
| 8194 | wptr += opd_ent_size; | |
| 8195 | if (add_aux_fields && opd_ent_size == 16) | |
| 8196 | { | |
| 8197 | memset (wptr, '\0', 8); | |
| 8198 | wptr += 8; | |
| 8199 | } | |
| 8200 | ||
| 50bc7936 | 8201 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8202 | new opd entries. */ |
| 8203 | for ( ; rel != next_rel; ++rel) | |
| 8204 | { | |
| 8205 | rel->r_offset += adjust; | |
| 8206 | if (write_rel != rel) | |
| 8207 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8208 | ++write_rel; | |
| 8209 | } | |
| 1e2f5b6e | 8210 | } |
| 51aecdc5 AM |
8211 | |
| 8212 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8213 | } |
| 8214 | ||
| 3f764659 | 8215 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8216 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8217 | if (add_aux_fields) |
| 8218 | { | |
| 8219 | free (sec->contents); | |
| 8220 | sec->contents = new_contents; | |
| 8221 | } | |
| 8222 | ||
| 05bf9422 | 8223 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8224 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8225 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8226 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8227 | some_edited = TRUE; |
| 1e2f5b6e | 8228 | } |
| 6cdc0ccc | 8229 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8230 | free (relstart); |
| 6cdc0ccc | 8231 | |
| 411e1bfb AM |
8232 | if (local_syms != NULL |
| 8233 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8234 | { | |
| 8235 | if (!info->keep_memory) | |
| 8236 | free (local_syms); | |
| 8237 | else | |
| 8238 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8239 | } | |
| 8240 | } | |
| 8241 | ||
| 754021d0 AM |
8242 | if (some_edited) |
| 8243 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8244 | ||
| 3f764659 JJ |
8245 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8246 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8247 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8248 | { |
| 8249 | bfd_byte *p; | |
| 8250 | ||
| 8251 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8252 | { | |
| 8253 | BFD_ASSERT (need_pad->size > 0); | |
| 8254 | ||
| 8255 | p = bfd_malloc (need_pad->size + 8); | |
| 8256 | if (p == NULL) | |
| 8257 | return FALSE; | |
| 699733f6 | 8258 | |
| 3f764659 JJ |
8259 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8260 | p, 0, need_pad->size)) | |
| 8261 | return FALSE; | |
| 8262 | ||
| 8263 | need_pad->contents = p; | |
| 8264 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8265 | } | |
| 8266 | else | |
| 8267 | { | |
| 8268 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8269 | if (p == NULL) | |
| 8270 | return FALSE; | |
| 8271 | ||
| 8272 | need_pad->contents = p; | |
| 8273 | } | |
| 8274 | ||
| 8275 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8276 | need_pad->size += 8; | |
| 8277 | } | |
| 8278 | ||
| 411e1bfb AM |
8279 | return TRUE; |
| 8280 | } | |
| 8281 | ||
| e1918d23 | 8282 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8283 | |
| e1918d23 | 8284 | asection * |
| e7d1c40c | 8285 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8286 | { |
| 411e1bfb AM |
8287 | struct ppc_link_hash_table *htab; |
| 8288 | ||
| 411e1bfb | 8289 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8290 | if (htab == NULL) |
| 8291 | return NULL; | |
| 8292 | ||
| ee67d69a AM |
8293 | if (abiversion (info->output_bfd) == 1) |
| 8294 | htab->opd_abi = 1; | |
| 8295 | ||
| e7d1c40c | 8296 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8297 | htab->do_multi_toc = 0; |
| 8298 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8299 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8300 | |
| 3a71aa26 AM |
8301 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8302 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8303 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8304 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8305 | if (htab->tls_get_addr != NULL) | |
| 8306 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8307 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8308 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8309 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8310 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8311 | { |
| 8312 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8313 | ||
| 8314 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8315 | FALSE, FALSE, TRUE); | |
| 8316 | if (opt != NULL) | |
| 8317 | func_desc_adjust (opt, info); | |
| 8318 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8319 | FALSE, FALSE, TRUE); | |
| 8320 | if (opt_fd != NULL | |
| 8321 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8322 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8323 | { | |
| 8324 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8325 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8326 | be calling __tls_get_addr via a plt call stub, then | |
| 8327 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8328 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8329 | if (htab->elf.dynamic_sections_created | |
| 8330 | && tga_fd != NULL | |
| 8331 | && (tga_fd->type == STT_FUNC | |
| 8332 | || tga_fd->needs_plt) | |
| 8333 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8334 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8335 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8336 | { | |
| 8337 | struct plt_entry *ent; | |
| 8338 | ||
| 8339 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8340 | if (ent->plt.refcount > 0) | |
| 8341 | break; | |
| 8342 | if (ent != NULL) | |
| 8343 | { | |
| 8344 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8345 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8346 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 3bd43ebc | 8347 | opt_fd->forced_local = 0; |
| a7f2871e AM |
8348 | if (opt_fd->dynindx != -1) |
| 8349 | { | |
| 8350 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8351 | opt_fd->dynindx = -1; | |
| 8352 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8353 | opt_fd->dynstr_index); | |
| 8354 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8355 | return NULL; |
| a7f2871e AM |
8356 | } |
| 8357 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8358 | tga = &htab->tls_get_addr->elf; | |
| 8359 | if (opt != NULL && tga != NULL) | |
| 8360 | { | |
| 8361 | tga->root.type = bfd_link_hash_indirect; | |
| 8362 | tga->root.u.i.link = &opt->root; | |
| 8363 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 3bd43ebc | 8364 | opt->forced_local = 0; |
| a7f2871e AM |
8365 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8366 | tga->forced_local); | |
| 8367 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8368 | } | |
| 8369 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8370 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8371 | if (htab->tls_get_addr != NULL) | |
| 8372 | { | |
| 8373 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8374 | htab->tls_get_addr->is_func = 1; | |
| 8375 | } | |
| 8376 | } | |
| 8377 | } | |
| 8378 | } | |
| 7c9cf415 AM |
8379 | else if (htab->params->tls_get_addr_opt < 0) |
| 8380 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8381 | } |
| 33c0ec9d | 8382 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8383 | } |
| 8387904d | 8384 | |
| 3a71aa26 AM |
8385 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8386 | HASH1 or HASH2. */ | |
| 8387904d | 8387 | |
| 3a71aa26 AM |
8388 | static bfd_boolean |
| 8389 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8390 | const Elf_Internal_Rela *rel, | |
| 8391 | const struct ppc_link_hash_entry *hash1, | |
| 8392 | const struct ppc_link_hash_entry *hash2) | |
| 8393 | { | |
| 8394 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8395 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8396 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8397 | ||
| e054468f | 8398 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8399 | { |
| 3a71aa26 AM |
8400 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8401 | struct elf_link_hash_entry *h; | |
| 8387904d | 8402 | |
| 3a71aa26 | 8403 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8404 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8405 | if (h == &hash1->elf || h == &hash2->elf) |
| 8406 | return TRUE; | |
| a48ebf4d | 8407 | } |
| 3a71aa26 | 8408 | return FALSE; |
| 951fd09b | 8409 | } |
| 411e1bfb | 8410 | |
| 951fd09b AM |
8411 | /* Run through all the TLS relocs looking for optimization |
| 8412 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8413 | a preliminary section layout so that we know the TLS segment | |
| 8414 | offsets. We can't optimize earlier because some optimizations need | |
| 8415 | to know the tp offset, and we need to optimize before allocating | |
| 8416 | dynamic relocations. */ | |
| 8417 | ||
| 8418 | bfd_boolean | |
| 33c0ec9d | 8419 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8420 | { |
| 8421 | bfd *ibfd; | |
| 8422 | asection *sec; | |
| 8423 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8424 | unsigned char *toc_ref; |
| 102890f0 | 8425 | int pass; |
| 951fd09b | 8426 | |
| 3cbc1e5e | 8427 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8428 | return TRUE; |
| 8429 | ||
| 951fd09b | 8430 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8431 | if (htab == NULL) |
| 8432 | return FALSE; | |
| 8433 | ||
| 663a1470 AM |
8434 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8435 | entries involved with tls relocs, and check that tls relocs | |
| 8436 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8437 | such a call. If they are not, we can't do any tls optimization. | |
| 8438 | On the second pass twiddle tls_mask flags to notify | |
| 8439 | relocate_section that optimization can be done, and adjust got | |
| 8440 | and plt refcounts. */ | |
| 8441 | toc_ref = NULL; | |
| 8442 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8443 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8444 | { |
| 8445 | Elf_Internal_Sym *locsyms = NULL; | |
| 8446 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8447 | ||
| 102890f0 AM |
8448 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8449 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8450 | { | |
| 8451 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8452 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8453 | |
| 102890f0 AM |
8454 | /* Read the relocations. */ |
| 8455 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8456 | info->keep_memory); | |
| 8457 | if (relstart == NULL) | |
| 2915c55b JK |
8458 | { |
| 8459 | free (toc_ref); | |
| 8460 | return FALSE; | |
| 8461 | } | |
| 411e1bfb | 8462 | |
| 102890f0 AM |
8463 | relend = relstart + sec->reloc_count; |
| 8464 | for (rel = relstart; rel < relend; rel++) | |
| 8465 | { | |
| 8466 | enum elf_ppc64_reloc_type r_type; | |
| 8467 | unsigned long r_symndx; | |
| 8468 | struct elf_link_hash_entry *h; | |
| 8469 | Elf_Internal_Sym *sym; | |
| 8470 | asection *sym_sec; | |
| f961d9dd AM |
8471 | unsigned char *tls_mask; |
| 8472 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8473 | bfd_vma value; |
| 8474 | bfd_boolean ok_tprel, is_local; | |
| 8475 | long toc_ref_index = 0; | |
| 8476 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8477 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8478 | |
| 102890f0 AM |
8479 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8480 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8481 | r_symndx, ibfd)) | |
| 8482 | { | |
| 8483 | err_free_rel: | |
| 8484 | if (elf_section_data (sec)->relocs != relstart) | |
| 8485 | free (relstart); | |
| 8486 | if (toc_ref != NULL) | |
| 8487 | free (toc_ref); | |
| 8488 | if (locsyms != NULL | |
| 0ffa91dd | 8489 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8490 | != (unsigned char *) locsyms)) |
| 8491 | free (locsyms); | |
| 663a1470 | 8492 | return ret; |
| 102890f0 | 8493 | } |
| 411e1bfb | 8494 | |
| 102890f0 AM |
8495 | if (h != NULL) |
| 8496 | { | |
| 766bc656 AM |
8497 | if (h->root.type == bfd_link_hash_defined |
| 8498 | || h->root.type == bfd_link_hash_defweak) | |
| 8499 | value = h->root.u.def.value; | |
| 8500 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8501 | value = 0; | |
| 8502 | else | |
| 663a1470 AM |
8503 | { |
| 8504 | found_tls_get_addr_arg = 0; | |
| 8505 | continue; | |
| 8506 | } | |
| 102890f0 AM |
8507 | } |
| 8508 | else | |
| 8509 | /* Symbols referenced by TLS relocs must be of type | |
| 8510 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8511 | value = sym->st_value; | |
| 8512 | ||
| 8513 | ok_tprel = FALSE; | |
| 8514 | is_local = FALSE; | |
| 8515 | if (h == NULL | |
| 8516 | || !h->def_dynamic) | |
| 8517 | { | |
| 8518 | is_local = TRUE; | |
| 766bc656 AM |
8519 | if (h != NULL |
| 8520 | && h->root.type == bfd_link_hash_undefweak) | |
| 8521 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8522 | else if (sym_sec != NULL |
| 8523 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8524 | { |
| 8525 | value += sym_sec->output_offset; | |
| 8526 | value += sym_sec->output_section->vma; | |
| 8527 | value -= htab->elf.tls_sec->vma; | |
| 8528 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8529 | < (bfd_vma) 1 << 32); | |
| 8530 | } | |
| 102890f0 | 8531 | } |
| 951fd09b | 8532 | |
| 102890f0 | 8533 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8534 | /* If this section has old-style __tls_get_addr calls |
| 8535 | without marker relocs, then check that each | |
| 8536 | __tls_get_addr call reloc is preceded by a reloc | |
| 8537 | that conceivably belongs to the __tls_get_addr arg | |
| 8538 | setup insn. If we don't find matching arg setup | |
| 8539 | relocs, don't do any tls optimization. */ | |
| 8540 | if (pass == 0 | |
| 8541 | && sec->has_tls_get_addr_call | |
| 8542 | && h != NULL | |
| 8543 | && (h == &htab->tls_get_addr->elf | |
| 8544 | || h == &htab->tls_get_addr_fd->elf) | |
| 8545 | && !found_tls_get_addr_arg | |
| 8546 | && is_branch_reloc (r_type)) | |
| 8547 | { | |
| 25f53a85 | 8548 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8549 | "TLS optimization disabled\n"), |
| 8550 | ibfd, sec, rel->r_offset); | |
| 8551 | ret = TRUE; | |
| 8552 | goto err_free_rel; | |
| 8553 | } | |
| 8554 | ||
| 8555 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8556 | switch (r_type) |
| 8557 | { | |
| 8558 | case R_PPC64_GOT_TLSLD16: | |
| 8559 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8560 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8561 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8562 | /* Fall through. */ |
| 102890f0 AM |
8563 | |
| 8564 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8565 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8566 | /* These relocs should never be against a symbol | |
| 8567 | defined in a shared lib. Leave them alone if | |
| 8568 | that turns out to be the case. */ | |
| 8569 | if (!is_local) | |
| 8570 | continue; | |
| 411e1bfb | 8571 | |
| 102890f0 | 8572 | /* LD -> LE */ |
| 411e1bfb | 8573 | tls_set = 0; |
| 102890f0 AM |
8574 | tls_clear = TLS_LD; |
| 8575 | tls_type = TLS_TLS | TLS_LD; | |
| 8576 | break; | |
| 411e1bfb | 8577 | |
| 102890f0 AM |
8578 | case R_PPC64_GOT_TLSGD16: |
| 8579 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8580 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8581 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8582 | /* Fall through. */ |
| 102890f0 AM |
8583 | |
| 8584 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8585 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8586 | if (ok_tprel) | |
| 8587 | /* GD -> LE */ | |
| 411e1bfb | 8588 | tls_set = 0; |
| 102890f0 AM |
8589 | else |
| 8590 | /* GD -> IE */ | |
| 8591 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8592 | tls_clear = TLS_GD; | |
| 8593 | tls_type = TLS_TLS | TLS_GD; | |
| 8594 | break; | |
| 8595 | ||
| 8596 | case R_PPC64_GOT_TPREL16_DS: | |
| 8597 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8598 | case R_PPC64_GOT_TPREL16_HI: | |
| 8599 | case R_PPC64_GOT_TPREL16_HA: | |
| 8600 | if (ok_tprel) | |
| 8601 | { | |
| 8602 | /* IE -> LE */ | |
| 8603 | tls_set = 0; | |
| 8604 | tls_clear = TLS_TPREL; | |
| 8605 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8606 | break; | |
| 8607 | } | |
| 411e1bfb AM |
8608 | continue; |
| 8609 | ||
| 727fc41e AM |
8610 | case R_PPC64_TLSGD: |
| 8611 | case R_PPC64_TLSLD: | |
| 663a1470 | 8612 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8613 | /* Fall through. */ |
| 663a1470 AM |
8614 | |
| 8615 | case R_PPC64_TLS: | |
| 8616 | case R_PPC64_TOC16: | |
| 8617 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8618 | if (sym_sec == NULL || sym_sec != toc) |
| 8619 | continue; | |
| 8620 | ||
| 8621 | /* Mark this toc entry as referenced by a TLS | |
| 8622 | code sequence. We can do that now in the | |
| 8623 | case of R_PPC64_TLS, and after checking for | |
| 8624 | tls_get_addr for the TOC16 relocs. */ | |
| 8625 | if (toc_ref == NULL) | |
| 663a1470 AM |
8626 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8627 | if (toc_ref == NULL) | |
| 8628 | goto err_free_rel; | |
| 8629 | ||
| 102890f0 AM |
8630 | if (h != NULL) |
| 8631 | value = h->root.u.def.value; | |
| 8632 | else | |
| 8633 | value = sym->st_value; | |
| 8634 | value += rel->r_addend; | |
| 73242275 AM |
8635 | if (value % 8 != 0) |
| 8636 | continue; | |
| 8637 | BFD_ASSERT (value < toc->size | |
| 8638 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8639 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8640 | if (r_type == R_PPC64_TLS |
| 8641 | || r_type == R_PPC64_TLSGD | |
| 8642 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8643 | { |
| 8644 | toc_ref[toc_ref_index] = 1; | |
| 8645 | continue; | |
| 8646 | } | |
| 8647 | ||
| 8648 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8649 | continue; | |
| 8650 | ||
| 8651 | tls_set = 0; | |
| 8652 | tls_clear = 0; | |
| 8653 | expecting_tls_get_addr = 2; | |
| 8654 | break; | |
| 8655 | ||
| 8656 | case R_PPC64_TPREL64: | |
| 8657 | if (pass == 0 | |
| 8658 | || sec != toc | |
| 8659 | || toc_ref == NULL | |
| 663a1470 | 8660 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8661 | continue; |
| 8662 | if (ok_tprel) | |
| 8663 | { | |
| 8664 | /* IE -> LE */ | |
| 8665 | tls_set = TLS_EXPLICIT; | |
| 8666 | tls_clear = TLS_TPREL; | |
| 8667 | break; | |
| 8668 | } | |
| 8669 | continue; | |
| 8670 | ||
| 8671 | case R_PPC64_DTPMOD64: | |
| 8672 | if (pass == 0 | |
| 8673 | || sec != toc | |
| 8674 | || toc_ref == NULL | |
| 663a1470 | 8675 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8676 | continue; |
| 8677 | if (rel + 1 < relend | |
| 8678 | && (rel[1].r_info | |
| 8679 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8680 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8681 | { | |
| 8682 | if (ok_tprel) | |
| 8683 | /* GD -> LE */ | |
| 8684 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8685 | else | |
| 8686 | /* GD -> IE */ | |
| 8687 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8688 | tls_clear = TLS_GD; | |
| 8689 | } | |
| 8690 | else | |
| 8691 | { | |
| 8692 | if (!is_local) | |
| 8693 | continue; | |
| 8694 | ||
| 8695 | /* LD -> LE */ | |
| 8696 | tls_set = TLS_EXPLICIT; | |
| 8697 | tls_clear = TLS_LD; | |
| 8698 | } | |
| 8699 | break; | |
| 8700 | ||
| 8701 | default: | |
| 8702 | continue; | |
| 8703 | } | |
| 8704 | ||
| 8705 | if (pass == 0) | |
| 8706 | { | |
| 727fc41e AM |
8707 | if (!expecting_tls_get_addr |
| 8708 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8709 | continue; |
| 8710 | ||
| 3a71aa26 AM |
8711 | if (rel + 1 < relend |
| 8712 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8713 | htab->tls_get_addr, | |
| 8714 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8715 | { |
| 3a71aa26 | 8716 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8717 | { |
| 3a71aa26 | 8718 | /* Check for toc tls entries. */ |
| f961d9dd | 8719 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8720 | int retval; |
| 8721 | ||
| 8722 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8723 | &locsyms, | |
| 8724 | rel, ibfd); | |
| 8725 | if (retval == 0) | |
| 8726 | goto err_free_rel; | |
| 663a1470 AM |
8727 | if (toc_tls != NULL) |
| 8728 | { | |
| 8729 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8730 | found_tls_get_addr_arg = 1; | |
| 8731 | if (retval > 1) | |
| 8732 | toc_ref[toc_ref_index] = 1; | |
| 8733 | } | |
| 102890f0 | 8734 | } |
| 3a71aa26 | 8735 | continue; |
| 102890f0 AM |
8736 | } |
| 8737 | ||
| 8738 | if (expecting_tls_get_addr != 1) | |
| 8739 | continue; | |
| 8740 | ||
| 8741 | /* Uh oh, we didn't find the expected call. We | |
| 8742 | could just mark this symbol to exclude it | |
| 8743 | from tls optimization but it's safer to skip | |
| 663a1470 | 8744 | the entire optimization. */ |
| 695344c0 | 8745 | /* xgettext:c-format */ |
| 25f53a85 | 8746 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8747 | "TLS optimization disabled\n"), |
| 8748 | ibfd, sec, rel->r_offset); | |
| 8749 | ret = TRUE; | |
| 8750 | goto err_free_rel; | |
| 102890f0 AM |
8751 | } |
| 8752 | ||
| 85f7a9cb | 8753 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8754 | { |
| 8755 | struct plt_entry *ent; | |
| 8756 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8757 | ent != NULL; | |
| 8758 | ent = ent->next) | |
| 8759 | if (ent->addend == 0) | |
| 411e1bfb | 8760 | { |
| 102890f0 | 8761 | if (ent->plt.refcount > 0) |
| 30038c59 | 8762 | { |
| 102890f0 AM |
8763 | ent->plt.refcount -= 1; |
| 8764 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8765 | } |
| 102890f0 | 8766 | break; |
| 411e1bfb | 8767 | } |
| 102890f0 | 8768 | } |
| 411e1bfb | 8769 | |
| 85f7a9cb | 8770 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8771 | { |
| 8772 | struct plt_entry *ent; | |
| 8773 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8774 | ent != NULL; | |
| 8775 | ent = ent->next) | |
| 8776 | if (ent->addend == 0) | |
| 411e1bfb | 8777 | { |
| 102890f0 AM |
8778 | if (ent->plt.refcount > 0) |
| 8779 | ent->plt.refcount -= 1; | |
| 8780 | break; | |
| 411e1bfb | 8781 | } |
| 102890f0 | 8782 | } |
| 411e1bfb | 8783 | |
| 102890f0 | 8784 | if (tls_clear == 0) |
| 30038c59 AM |
8785 | continue; |
| 8786 | ||
| 102890f0 AM |
8787 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8788 | { | |
| 8789 | struct got_entry *ent; | |
| 411e1bfb | 8790 | |
| 102890f0 AM |
8791 | /* Adjust got entry for this reloc. */ |
| 8792 | if (h != NULL) | |
| 8793 | ent = h->got.glist; | |
| 8794 | else | |
| 8795 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8796 | |
| 102890f0 AM |
8797 | for (; ent != NULL; ent = ent->next) |
| 8798 | if (ent->addend == rel->r_addend | |
| 8799 | && ent->owner == ibfd | |
| 8800 | && ent->tls_type == tls_type) | |
| 8801 | break; | |
| 8802 | if (ent == NULL) | |
| 8803 | abort (); | |
| 411e1bfb | 8804 | |
| 102890f0 AM |
8805 | if (tls_set == 0) |
| 8806 | { | |
| 8807 | /* We managed to get rid of a got entry. */ | |
| 8808 | if (ent->got.refcount > 0) | |
| 8809 | ent->got.refcount -= 1; | |
| 8810 | } | |
| 8811 | } | |
| 8812 | else | |
| 8813 | { | |
| 8814 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8815 | we'll lose one or two dyn relocs. */ | |
| 8816 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8817 | NULL, h, sym)) |
| 102890f0 | 8818 | return FALSE; |
| 411e1bfb | 8819 | |
| 102890f0 AM |
8820 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8821 | { | |
| 8822 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8823 | NULL, h, sym)) |
| 102890f0 AM |
8824 | return FALSE; |
| 8825 | } | |
| 8826 | } | |
| 411e1bfb | 8827 | |
| 102890f0 AM |
8828 | *tls_mask |= tls_set; |
| 8829 | *tls_mask &= ~tls_clear; | |
| 8830 | } | |
| 8c1d1bb8 | 8831 | |
| 102890f0 AM |
8832 | if (elf_section_data (sec)->relocs != relstart) |
| 8833 | free (relstart); | |
| 8834 | } | |
| 411e1bfb | 8835 | |
| 663a1470 AM |
8836 | if (locsyms != NULL |
| 8837 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8838 | { | |
| 8839 | if (!info->keep_memory) | |
| 8840 | free (locsyms); | |
| 8841 | else | |
| 8842 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8843 | } | |
| 8844 | } | |
| 411e1bfb | 8845 | |
| 663a1470 AM |
8846 | if (toc_ref != NULL) |
| 8847 | free (toc_ref); | |
| b34976b6 | 8848 | return TRUE; |
| 1e2f5b6e | 8849 | } |
| b34976b6 | 8850 | |
| c5614fa4 AM |
8851 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8852 | the values of any global symbols in a toc section that has been | |
| 8853 | edited. Globals in toc sections should be a rarity, so this function | |
| 8854 | sets a flag if any are found in toc sections other than the one just | |
| 8855 | edited, so that futher hash table traversals can be avoided. */ | |
| 8856 | ||
| 8857 | struct adjust_toc_info | |
| 8858 | { | |
| 8859 | asection *toc; | |
| 8860 | unsigned long *skip; | |
| 8861 | bfd_boolean global_toc_syms; | |
| 8862 | }; | |
| 8863 | ||
| ba761f19 AM |
8864 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8865 | ||
| c5614fa4 AM |
8866 | static bfd_boolean |
| 8867 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8868 | { | |
| 8869 | struct ppc_link_hash_entry *eh; | |
| 8870 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8871 | unsigned long i; |
| c5614fa4 | 8872 | |
| c5614fa4 AM |
8873 | if (h->root.type != bfd_link_hash_defined |
| 8874 | && h->root.type != bfd_link_hash_defweak) | |
| 8875 | return TRUE; | |
| 8876 | ||
| 8877 | eh = (struct ppc_link_hash_entry *) h; | |
| 8878 | if (eh->adjust_done) | |
| 8879 | return TRUE; | |
| 8880 | ||
| 8881 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8882 | { | |
| 854b41e7 AM |
8883 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8884 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8885 | else |
| 854b41e7 AM |
8886 | i = eh->elf.root.u.def.value >> 3; |
| 8887 | ||
| ba761f19 | 8888 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8889 | { |
| 4eca0228 | 8890 | _bfd_error_handler |
| 854b41e7 AM |
8891 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8892 | do | |
| 8893 | ++i; | |
| ba761f19 | 8894 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8895 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8896 | } |
| 854b41e7 AM |
8897 | |
| 8898 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8899 | eh->adjust_done = 1; |
| 8900 | } | |
| 8901 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8902 | toc_inf->global_toc_syms = TRUE; | |
| 8903 | ||
| 8904 | return TRUE; | |
| 8905 | } | |
| 8906 | ||
| 39eeab25 AM |
8907 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8908 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8909 | |
| 8910 | static bfd_boolean | |
| 39eeab25 | 8911 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8912 | { |
| 39eeab25 AM |
8913 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8914 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8915 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8916 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8917 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8918 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8919 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8920 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8921 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8922 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8923 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8924 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8925 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8926 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8927 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8928 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8929 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8930 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8931 | defined for the reduced D field in psq_lu then those | |
| 8932 | will need testing too. */ | |
| 8933 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8934 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8935 | && (insn & 1) == 0) | |
| 8936 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8937 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8938 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8939 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8940 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8941 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8942 | } |
| 8943 | ||
| c5614fa4 AM |
8944 | /* Examine all relocs referencing .toc sections in order to remove |
| 8945 | unused .toc entries. */ | |
| 8946 | ||
| 8947 | bfd_boolean | |
| 33c0ec9d | 8948 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8949 | { |
| 8950 | bfd *ibfd; | |
| 8951 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8952 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8953 | |
| 67f0cbdb | 8954 | htab->do_toc_opt = 1; |
| c5614fa4 | 8955 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8956 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8957 | { |
| 8958 | asection *toc, *sec; | |
| 8959 | Elf_Internal_Shdr *symtab_hdr; | |
| 8960 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8961 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8962 | unsigned long *skip, *drop; |
| 8963 | unsigned char *used; | |
| 8964 | unsigned char *keep, last, some_unused; | |
| 8965 | ||
| 854b41e7 AM |
8966 | if (!is_ppc64_elf (ibfd)) |
| 8967 | continue; | |
| 8968 | ||
| c5614fa4 AM |
8969 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8970 | if (toc == NULL | |
| 92b7a70f | 8971 | || toc->size == 0 |
| dbaa2011 AM |
8972 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8973 | || discarded_section (toc)) | |
| c5614fa4 AM |
8974 | continue; |
| 8975 | ||
| 425b145b | 8976 | toc_relocs = NULL; |
| c5614fa4 | 8977 | local_syms = NULL; |
| 0ffa91dd | 8978 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8979 | |
| 8980 | /* Look at sections dropped from the final link. */ | |
| 8981 | skip = NULL; | |
| 8982 | relstart = NULL; | |
| 8983 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8984 | { | |
| 8985 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8986 | || !discarded_section (sec) |
| c5614fa4 AM |
8987 | || get_opd_info (sec) |
| 8988 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8989 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8990 | continue; | |
| 8991 | ||
| 8992 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8993 | if (relstart == NULL) | |
| 8994 | goto error_ret; | |
| 8995 | ||
| 8996 | /* Run through the relocs to see which toc entries might be | |
| 8997 | unused. */ | |
| 8998 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8999 | { | |
| 9000 | enum elf_ppc64_reloc_type r_type; | |
| 9001 | unsigned long r_symndx; | |
| 9002 | asection *sym_sec; | |
| 9003 | struct elf_link_hash_entry *h; | |
| 9004 | Elf_Internal_Sym *sym; | |
| 9005 | bfd_vma val; | |
| 9006 | ||
| 9007 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9008 | switch (r_type) | |
| 9009 | { | |
| 9010 | default: | |
| 9011 | continue; | |
| 9012 | ||
| 9013 | case R_PPC64_TOC16: | |
| 9014 | case R_PPC64_TOC16_LO: | |
| 9015 | case R_PPC64_TOC16_HI: | |
| 9016 | case R_PPC64_TOC16_HA: | |
| 9017 | case R_PPC64_TOC16_DS: | |
| 9018 | case R_PPC64_TOC16_LO_DS: | |
| 9019 | break; | |
| 9020 | } | |
| 9021 | ||
| 9022 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9023 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9024 | r_symndx, ibfd)) | |
| 9025 | goto error_ret; | |
| 9026 | ||
| 9027 | if (sym_sec != toc) | |
| 9028 | continue; | |
| 9029 | ||
| 9030 | if (h != NULL) | |
| 9031 | val = h->root.u.def.value; | |
| 9032 | else | |
| 9033 | val = sym->st_value; | |
| 9034 | val += rel->r_addend; | |
| 9035 | ||
| 9036 | if (val >= toc->size) | |
| 9037 | continue; | |
| 9038 | ||
| 9039 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 9040 | If not, don't mark as unused. */ | |
| 9041 | if (val & 7) | |
| 9042 | continue; | |
| 9043 | ||
| 9044 | if (skip == NULL) | |
| 9045 | { | |
| 854b41e7 | 9046 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
9047 | if (skip == NULL) |
| 9048 | goto error_ret; | |
| 9049 | } | |
| 9050 | ||
| ba761f19 | 9051 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
9052 | } |
| 9053 | ||
| 9054 | if (elf_section_data (sec)->relocs != relstart) | |
| 9055 | free (relstart); | |
| 9056 | } | |
| 9057 | ||
| ba761f19 AM |
9058 | /* For largetoc loads of address constants, we can convert |
| 9059 | . addis rx,2,addr@got@ha | |
| 9060 | . ld ry,addr@got@l(rx) | |
| 9061 | to | |
| 9062 | . addis rx,2,addr@toc@ha | |
| 9063 | . addi ry,rx,addr@toc@l | |
| 9064 | when addr is within 2G of the toc pointer. This then means | |
| 9065 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9066 | |
| ba761f19 AM |
9067 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9068 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9069 | && toc->reloc_count != 0) | |
| 9070 | { | |
| 9071 | /* Read toc relocs. */ | |
| 425b145b AM |
9072 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9073 | info->keep_memory); | |
| 9074 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9075 | goto error_ret; |
| 9076 | ||
| 425b145b | 9077 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9078 | { |
| 9079 | enum elf_ppc64_reloc_type r_type; | |
| 9080 | unsigned long r_symndx; | |
| 9081 | asection *sym_sec; | |
| 9082 | struct elf_link_hash_entry *h; | |
| 9083 | Elf_Internal_Sym *sym; | |
| 9084 | bfd_vma val, addr; | |
| 9085 | ||
| 9086 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9087 | if (r_type != R_PPC64_ADDR64) | |
| 9088 | continue; | |
| 9089 | ||
| 9090 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9091 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9092 | r_symndx, ibfd)) | |
| 9093 | goto error_ret; | |
| 9094 | ||
| 425b145b | 9095 | if (sym_sec == NULL |
| c27b8c2a | 9096 | || sym_sec->output_section == NULL |
| dbaa2011 | 9097 | || discarded_section (sym_sec)) |
| 425b145b AM |
9098 | continue; |
| 9099 | ||
| afe397ea | 9100 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9101 | continue; |
| 9102 | ||
| 9103 | if (h != NULL) | |
| bddc25c9 AM |
9104 | { |
| 9105 | if (h->type == STT_GNU_IFUNC) | |
| 9106 | continue; | |
| 9107 | val = h->root.u.def.value; | |
| 9108 | } | |
| ba761f19 | 9109 | else |
| bddc25c9 AM |
9110 | { |
| 9111 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9112 | continue; | |
| 9113 | val = sym->st_value; | |
| 9114 | } | |
| ba761f19 AM |
9115 | val += rel->r_addend; |
| 9116 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9117 | ||
| 9118 | /* We don't yet know the exact toc pointer value, but we | |
| 9119 | know it will be somewhere in the toc section. Don't | |
| 9120 | optimize if the difference from any possible toc | |
| 9121 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9122 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9123 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9124 | continue; | |
| 9125 | ||
| 9126 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9127 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9128 | continue; | |
| 9129 | ||
| 9130 | if (skip == NULL) | |
| 9131 | { | |
| 9132 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9133 | if (skip == NULL) | |
| 9134 | goto error_ret; | |
| 9135 | } | |
| 9136 | ||
| 9137 | skip[rel->r_offset >> 3] | |
| 425b145b | 9138 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9139 | } |
| ba761f19 AM |
9140 | } |
| 9141 | ||
| c5614fa4 AM |
9142 | if (skip == NULL) |
| 9143 | continue; | |
| 9144 | ||
| 9145 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9146 | if (used == NULL) | |
| 9147 | { | |
| 9148 | error_ret: | |
| 9149 | if (local_syms != NULL | |
| 9150 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9151 | free (local_syms); | |
| 9152 | if (sec != NULL | |
| 9153 | && relstart != NULL | |
| 9154 | && elf_section_data (sec)->relocs != relstart) | |
| 9155 | free (relstart); | |
| 425b145b AM |
9156 | if (toc_relocs != NULL |
| 9157 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9158 | free (toc_relocs); | |
| c5614fa4 AM |
9159 | if (skip != NULL) |
| 9160 | free (skip); | |
| 9161 | return FALSE; | |
| 9162 | } | |
| 9163 | ||
| 30038c59 AM |
9164 | /* Now check all kept sections that might reference the toc. |
| 9165 | Check the toc itself last. */ | |
| 9166 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9167 | : ibfd->sections); | |
| c5614fa4 | 9168 | sec != NULL; |
| c5614fa4 | 9169 | sec = (sec == toc ? NULL |
| c5614fa4 | 9170 | : sec->next == NULL ? toc |
| 30038c59 | 9171 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9172 | : sec->next)) |
| 9173 | { | |
| 9174 | int repeat; | |
| 9175 | ||
| 9176 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9177 | || discarded_section (sec) |
| c5614fa4 AM |
9178 | || get_opd_info (sec) |
| 9179 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9180 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9181 | continue; | |
| 9182 | ||
| 854b41e7 AM |
9183 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9184 | info->keep_memory); | |
| c5614fa4 | 9185 | if (relstart == NULL) |
| 2915c55b JK |
9186 | { |
| 9187 | free (used); | |
| 9188 | goto error_ret; | |
| 9189 | } | |
| c5614fa4 AM |
9190 | |
| 9191 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9192 | do |
| d4f1ee75 AM |
9193 | { |
| 9194 | repeat = 0; | |
| 9195 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9196 | { | |
| 9197 | enum elf_ppc64_reloc_type r_type; | |
| 9198 | unsigned long r_symndx; | |
| 9199 | asection *sym_sec; | |
| 9200 | struct elf_link_hash_entry *h; | |
| 9201 | Elf_Internal_Sym *sym; | |
| 9202 | bfd_vma val; | |
| 9203 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9204 | |
| d4f1ee75 AM |
9205 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9206 | switch (r_type) | |
| 9207 | { | |
| 9208 | default: | |
| 9209 | insn_check = no_check; | |
| 9210 | break; | |
| 98528052 | 9211 | |
| d4f1ee75 AM |
9212 | case R_PPC64_GOT_TLSLD16_HA: |
| 9213 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9214 | case R_PPC64_GOT_TPREL16_HA: | |
| 9215 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9216 | case R_PPC64_GOT16_HA: | |
| 9217 | case R_PPC64_TOC16_HA: | |
| 9218 | insn_check = check_ha; | |
| 9219 | break; | |
| 98528052 | 9220 | |
| d4f1ee75 AM |
9221 | case R_PPC64_GOT_TLSLD16_LO: |
| 9222 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9223 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9224 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9225 | case R_PPC64_GOT16_LO: | |
| 9226 | case R_PPC64_GOT16_LO_DS: | |
| 9227 | case R_PPC64_TOC16_LO: | |
| 9228 | case R_PPC64_TOC16_LO_DS: | |
| 9229 | insn_check = check_lo; | |
| 9230 | break; | |
| 9231 | } | |
| 560c8763 | 9232 | |
| d4f1ee75 AM |
9233 | if (insn_check != no_check) |
| 9234 | { | |
| 9235 | bfd_vma off = rel->r_offset & ~3; | |
| 9236 | unsigned char buf[4]; | |
| 9237 | unsigned int insn; | |
| c5614fa4 | 9238 | |
| d4f1ee75 AM |
9239 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9240 | { | |
| 9241 | free (used); | |
| 9242 | goto error_ret; | |
| 9243 | } | |
| 9244 | insn = bfd_get_32 (ibfd, buf); | |
| 9245 | if (insn_check == check_lo | |
| 39eeab25 | 9246 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9247 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9248 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9249 | { | |
| 9250 | char str[12]; | |
| 9251 | ||
| 9252 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9253 | sprintf (str, "%#08x", insn); | |
| 9254 | info->callbacks->einfo | |
| 695344c0 | 9255 | /* xgettext:c-format */ |
| d4f1ee75 AM |
9256 | (_("%P: %H: toc optimization is not supported for" |
| 9257 | " %s instruction.\n"), | |
| 9258 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9259 | } | |
| 9260 | } | |
| c5614fa4 | 9261 | |
| d4f1ee75 AM |
9262 | switch (r_type) |
| 9263 | { | |
| 9264 | case R_PPC64_TOC16: | |
| 9265 | case R_PPC64_TOC16_LO: | |
| 9266 | case R_PPC64_TOC16_HI: | |
| 9267 | case R_PPC64_TOC16_HA: | |
| 9268 | case R_PPC64_TOC16_DS: | |
| 9269 | case R_PPC64_TOC16_LO_DS: | |
| 9270 | /* In case we're taking addresses of toc entries. */ | |
| 9271 | case R_PPC64_ADDR64: | |
| 9272 | break; | |
| c5614fa4 | 9273 | |
| d4f1ee75 AM |
9274 | default: |
| 9275 | continue; | |
| 9276 | } | |
| c5614fa4 | 9277 | |
| d4f1ee75 AM |
9278 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9279 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9280 | r_symndx, ibfd)) | |
| 9281 | { | |
| 9282 | free (used); | |
| 9283 | goto error_ret; | |
| 9284 | } | |
| c5614fa4 | 9285 | |
| d4f1ee75 AM |
9286 | if (sym_sec != toc) |
| 9287 | continue; | |
| c5614fa4 | 9288 | |
| d4f1ee75 AM |
9289 | if (h != NULL) |
| 9290 | val = h->root.u.def.value; | |
| 9291 | else | |
| 9292 | val = sym->st_value; | |
| 9293 | val += rel->r_addend; | |
| ba761f19 | 9294 | |
| d4f1ee75 AM |
9295 | if (val >= toc->size) |
| 9296 | continue; | |
| ba761f19 | 9297 | |
| d4f1ee75 AM |
9298 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9299 | { | |
| 9300 | bfd_vma off; | |
| 9301 | unsigned char opc; | |
| 9302 | ||
| 9303 | switch (r_type) | |
| 9304 | { | |
| 9305 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9306 | break; |
| ba761f19 | 9307 | |
| d4f1ee75 AM |
9308 | case R_PPC64_TOC16_LO_DS: |
| 9309 | off = rel->r_offset; | |
| 9310 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9311 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9312 | off, 1)) | |
| 9313 | { | |
| 9314 | free (used); | |
| 9315 | goto error_ret; | |
| 9316 | } | |
| 9317 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9318 | break; | |
| 1a0670f3 | 9319 | /* Fall through. */ |
| ba761f19 | 9320 | |
| d4f1ee75 AM |
9321 | default: |
| 9322 | /* Wrong sort of reloc, or not a ld. We may | |
| 9323 | as well clear ref_from_discarded too. */ | |
| 9324 | skip[val >> 3] = 0; | |
| 9325 | } | |
| 9326 | } | |
| 9327 | ||
| 9328 | if (sec != toc) | |
| 9329 | used[val >> 3] = 1; | |
| 9330 | /* For the toc section, we only mark as used if this | |
| 9331 | entry itself isn't unused. */ | |
| 9332 | else if ((used[rel->r_offset >> 3] | |
| 9333 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9334 | && !used[val >> 3]) | |
| 9335 | { | |
| 9336 | /* Do all the relocs again, to catch reference | |
| 9337 | chains. */ | |
| 9338 | repeat = 1; | |
| 9339 | used[val >> 3] = 1; | |
| 9340 | } | |
| 9341 | } | |
| 9342 | } | |
| c5614fa4 | 9343 | while (repeat); |
| 854b41e7 AM |
9344 | |
| 9345 | if (elf_section_data (sec)->relocs != relstart) | |
| 9346 | free (relstart); | |
| c5614fa4 AM |
9347 | } |
| 9348 | ||
| 9349 | /* Merge the used and skip arrays. Assume that TOC | |
| 9350 | doublewords not appearing as either used or unused belong | |
| 9351 | to to an entry more than one doubleword in size. */ | |
| 9352 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9353 | drop < skip + (toc->size + 7) / 8; | |
| 9354 | ++drop, ++keep) | |
| 9355 | { | |
| 9356 | if (*keep) | |
| 9357 | { | |
| ba761f19 AM |
9358 | *drop &= ~ref_from_discarded; |
| 9359 | if ((*drop & can_optimize) != 0) | |
| 9360 | some_unused = 1; | |
| c5614fa4 AM |
9361 | last = 0; |
| 9362 | } | |
| b140b010 | 9363 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9364 | { |
| 9365 | some_unused = 1; | |
| ba761f19 | 9366 | last = ref_from_discarded; |
| c5614fa4 AM |
9367 | } |
| 9368 | else | |
| 9369 | *drop = last; | |
| 9370 | } | |
| 9371 | ||
| 9372 | free (used); | |
| 9373 | ||
| 9374 | if (some_unused) | |
| 9375 | { | |
| 9376 | bfd_byte *contents, *src; | |
| 9377 | unsigned long off; | |
| d62b3684 | 9378 | Elf_Internal_Sym *sym; |
| ba761f19 | 9379 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9380 | |
| 9381 | /* Shuffle the toc contents, and at the same time convert the | |
| 9382 | skip array from booleans into offsets. */ | |
| 9383 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9384 | goto error_ret; | |
| 9385 | ||
| 9386 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9387 | ||
| 9388 | for (src = contents, off = 0, drop = skip; | |
| 9389 | src < contents + toc->size; | |
| 9390 | src += 8, ++drop) | |
| 9391 | { | |
| ba761f19 AM |
9392 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9393 | off += 8; | |
| c5614fa4 AM |
9394 | else if (off != 0) |
| 9395 | { | |
| 9396 | *drop = off; | |
| 9397 | memcpy (src - off, src, 8); | |
| 9398 | } | |
| 9399 | } | |
| 854b41e7 | 9400 | *drop = off; |
| c5614fa4 AM |
9401 | toc->rawsize = toc->size; |
| 9402 | toc->size = src - contents - off; | |
| 9403 | ||
| ba761f19 AM |
9404 | /* Adjust addends for relocs against the toc section sym, |
| 9405 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9406 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9407 | { | |
| 9408 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9409 | || discarded_section (sec)) |
| c5614fa4 AM |
9410 | continue; |
| 9411 | ||
| 9412 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9413 | info->keep_memory); |
| c5614fa4 AM |
9414 | if (relstart == NULL) |
| 9415 | goto error_ret; | |
| 9416 | ||
| 9417 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9418 | { | |
| 9419 | enum elf_ppc64_reloc_type r_type; | |
| 9420 | unsigned long r_symndx; | |
| 9421 | asection *sym_sec; | |
| 9422 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9423 | bfd_vma val; |
| c5614fa4 AM |
9424 | |
| 9425 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9426 | switch (r_type) | |
| 9427 | { | |
| 9428 | default: | |
| 9429 | continue; | |
| 9430 | ||
| 9431 | case R_PPC64_TOC16: | |
| 9432 | case R_PPC64_TOC16_LO: | |
| 9433 | case R_PPC64_TOC16_HI: | |
| 9434 | case R_PPC64_TOC16_HA: | |
| 9435 | case R_PPC64_TOC16_DS: | |
| 9436 | case R_PPC64_TOC16_LO_DS: | |
| 9437 | case R_PPC64_ADDR64: | |
| 9438 | break; | |
| 9439 | } | |
| 9440 | ||
| 9441 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9442 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9443 | r_symndx, ibfd)) | |
| 9444 | goto error_ret; | |
| 9445 | ||
| ba761f19 | 9446 | if (sym_sec != toc) |
| c5614fa4 AM |
9447 | continue; |
| 9448 | ||
| ba761f19 AM |
9449 | if (h != NULL) |
| 9450 | val = h->root.u.def.value; | |
| 9451 | else | |
| 9452 | { | |
| 9453 | val = sym->st_value; | |
| 9454 | if (val != 0) | |
| 9455 | local_toc_syms = TRUE; | |
| 9456 | } | |
| 9457 | ||
| 9458 | val += rel->r_addend; | |
| 854b41e7 AM |
9459 | |
| 9460 | if (val > toc->rawsize) | |
| 9461 | val = toc->rawsize; | |
| ba761f19 AM |
9462 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9463 | continue; | |
| 9464 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9465 | { | |
| 9466 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9467 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9468 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9469 | ||
| 9470 | switch (r_type) | |
| 9471 | { | |
| 9472 | case R_PPC64_TOC16_HA: | |
| 9473 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9474 | break; | |
| 9475 | ||
| 9476 | case R_PPC64_TOC16_LO_DS: | |
| 9477 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9478 | break; | |
| 9479 | ||
| 9480 | default: | |
| 28942f62 AM |
9481 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9482 | ppc_howto_init (); | |
| b140b010 | 9483 | info->callbacks->einfo |
| 695344c0 | 9484 | /* xgettext:c-format */ |
| bc30df16 | 9485 | (_("%P: %H: %s references " |
| b140b010 AM |
9486 | "optimized away TOC entry\n"), |
| 9487 | ibfd, sec, rel->r_offset, | |
| 9488 | ppc64_elf_howto_table[r_type]->name); | |
| 9489 | bfd_set_error (bfd_error_bad_value); | |
| 9490 | goto error_ret; | |
| ba761f19 AM |
9491 | } |
| 9492 | rel->r_addend = tocrel->r_addend; | |
| 9493 | elf_section_data (sec)->relocs = relstart; | |
| 9494 | continue; | |
| 9495 | } | |
| 9496 | ||
| 9497 | if (h != NULL || sym->st_value != 0) | |
| 9498 | continue; | |
| 854b41e7 AM |
9499 | |
| 9500 | rel->r_addend -= skip[val >> 3]; | |
| 9501 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9502 | } |
| 854b41e7 AM |
9503 | |
| 9504 | if (elf_section_data (sec)->relocs != relstart) | |
| 9505 | free (relstart); | |
| c5614fa4 AM |
9506 | } |
| 9507 | ||
| 9508 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9509 | but handle them anyway. */ | |
| df22d223 AM |
9510 | if (local_syms != NULL) |
| 9511 | for (sym = local_syms; | |
| 9512 | sym < local_syms + symtab_hdr->sh_info; | |
| 9513 | ++sym) | |
| 9514 | if (sym->st_value != 0 | |
| 9515 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9516 | { | |
| 9517 | unsigned long i; | |
| 854b41e7 | 9518 | |
| df22d223 AM |
9519 | if (sym->st_value > toc->rawsize) |
| 9520 | i = toc->rawsize >> 3; | |
| 9521 | else | |
| 9522 | i = sym->st_value >> 3; | |
| 854b41e7 | 9523 | |
| df22d223 AM |
9524 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9525 | { | |
| 9526 | if (local_toc_syms) | |
| 4eca0228 | 9527 | _bfd_error_handler |
| df22d223 AM |
9528 | (_("%s defined on removed toc entry"), |
| 9529 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9530 | do | |
| 9531 | ++i; | |
| 9532 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9533 | sym->st_value = (bfd_vma) i << 3; | |
| 9534 | } | |
| d62b3684 | 9535 | |
| df22d223 AM |
9536 | sym->st_value -= skip[i]; |
| 9537 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9538 | } | |
| c5614fa4 | 9539 | |
| 854b41e7 | 9540 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9541 | if (toc_inf.global_toc_syms) |
| 9542 | { | |
| 9543 | toc_inf.toc = toc; | |
| 9544 | toc_inf.skip = skip; | |
| 9545 | toc_inf.global_toc_syms = FALSE; | |
| 9546 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9547 | &toc_inf); | |
| 9548 | } | |
| 854b41e7 AM |
9549 | |
| 9550 | if (toc->reloc_count != 0) | |
| 9551 | { | |
| d4730f92 | 9552 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9553 | Elf_Internal_Rela *wrel; |
| 9554 | bfd_size_type sz; | |
| 9555 | ||
| 854b41e7 | 9556 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9557 | if (toc_relocs == NULL) |
| 9558 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9559 | info->keep_memory); | |
| 9560 | if (toc_relocs == NULL) | |
| 9561 | goto error_ret; | |
| 9562 | ||
| 425b145b AM |
9563 | wrel = toc_relocs; |
| 9564 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9565 | if ((skip[rel->r_offset >> 3] |
| 9566 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9567 | { |
| 9568 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9569 | wrel->r_info = rel->r_info; | |
| 9570 | wrel->r_addend = rel->r_addend; | |
| 9571 | ++wrel; | |
| 9572 | } | |
| 9573 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9574 | &local_syms, NULL, NULL)) | |
| 9575 | goto error_ret; | |
| 9576 | ||
| 425b145b AM |
9577 | elf_section_data (toc)->relocs = toc_relocs; |
| 9578 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9579 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9580 | sz = rel_hdr->sh_entsize; | |
| 9581 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9582 | } |
| c5614fa4 | 9583 | } |
| 28be611c AM |
9584 | else if (toc_relocs != NULL |
| 9585 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9586 | free (toc_relocs); |
| c5614fa4 AM |
9587 | |
| 9588 | if (local_syms != NULL | |
| 9589 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9590 | { | |
| 9591 | if (!info->keep_memory) | |
| 9592 | free (local_syms); | |
| 9593 | else | |
| 9594 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9595 | } | |
| 9596 | free (skip); | |
| 9597 | } | |
| 9598 | ||
| 9599 | return TRUE; | |
| 9600 | } | |
| 9601 | ||
| 1bbe0902 AM |
9602 | /* Return true iff input section I references the TOC using |
| 9603 | instructions limited to +/-32k offsets. */ | |
| 9604 | ||
| 9605 | bfd_boolean | |
| 9606 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9607 | { | |
| 9608 | return (is_ppc64_elf (i->owner) | |
| 9609 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9610 | } | |
| 9611 | ||
| 927be08e AM |
9612 | /* Allocate space for one GOT entry. */ |
| 9613 | ||
| 9614 | static void | |
| 9615 | allocate_got (struct elf_link_hash_entry *h, | |
| 9616 | struct bfd_link_info *info, | |
| 9617 | struct got_entry *gent) | |
| 9618 | { | |
| 9619 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9620 | bfd_boolean dyn; | |
| 9621 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9622 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9623 | ? 16 : 8); | |
| 9624 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9625 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9626 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9627 | ||
| 9628 | gent->got.offset = got->size; | |
| 9629 | got->size += entsize; | |
| 9630 | ||
| 9631 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9632 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9633 | { |
| 33e44f2e | 9634 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9635 | htab->got_reli_size += rentsize; |
| 927be08e | 9636 | } |
| 0e1862bb | 9637 | else if ((bfd_link_pic (info) |
| 19e08130 AM |
9638 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 9639 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9640 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9641 | { |
| 19e08130 | 9642 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9643 | relgot->size += rentsize; |
| 927be08e AM |
9644 | } |
| 9645 | } | |
| 9646 | ||
| 7865406b AM |
9647 | /* This function merges got entries in the same toc group. */ |
| 9648 | ||
| 9649 | static void | |
| 9650 | merge_got_entries (struct got_entry **pent) | |
| 9651 | { | |
| 9652 | struct got_entry *ent, *ent2; | |
| 9653 | ||
| 9654 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9655 | if (!ent->is_indirect) | |
| 9656 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9657 | if (!ent2->is_indirect | |
| 9658 | && ent2->addend == ent->addend | |
| 9659 | && ent2->tls_type == ent->tls_type | |
| 9660 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9661 | { | |
| 9662 | ent2->is_indirect = TRUE; | |
| 9663 | ent2->got.ent = ent; | |
| 9664 | } | |
| 9665 | } | |
| 9666 | ||
| 65f38f15 AM |
9667 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9668 | dynamic relocs. */ | |
| 5bd4f169 | 9669 | |
| b34976b6 | 9670 | static bfd_boolean |
| 4ce794b7 | 9671 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9672 | { |
| 65f38f15 AM |
9673 | struct bfd_link_info *info; |
| 9674 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9675 | asection *s; |
| 65f38f15 | 9676 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9677 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9678 | |
| e92d460e | 9679 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9680 | return TRUE; |
| 5bd4f169 | 9681 | |
| 65f38f15 AM |
9682 | info = (struct bfd_link_info *) inf; |
| 9683 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9684 | if (htab == NULL) |
| 9685 | return FALSE; | |
| 5bd4f169 | 9686 | |
| 951fd09b AM |
9687 | eh = (struct ppc_link_hash_entry *) h; |
| 9688 | /* Run through the TLS GD got entries first if we're changing them | |
| 9689 | to TPREL. */ | |
| e7b938ca | 9690 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9691 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9692 | if (gent->got.refcount > 0 | |
| 9693 | && (gent->tls_type & TLS_GD) != 0) | |
| 9694 | { | |
| 9695 | /* This was a GD entry that has been converted to TPREL. If | |
| 9696 | there happens to be a TPREL entry we can use that one. */ | |
| 9697 | struct got_entry *ent; | |
| 9698 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9699 | if (ent->got.refcount > 0 | |
| 9700 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9701 | && ent->addend == gent->addend |
| 9702 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9703 | { |
| 9704 | gent->got.refcount = 0; | |
| 9705 | break; | |
| 9706 | } | |
| 9707 | ||
| 9708 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9709 | if (gent->got.refcount != 0) | |
| 9710 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9711 | } | |
| 9712 | ||
| 7865406b AM |
9713 | /* Remove any list entry that won't generate a word in the GOT before |
| 9714 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9715 | entries. */ | |
| 0b8bcf0d AM |
9716 | pgent = &h->got.glist; |
| 9717 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9718 | if (gent->got.refcount > 0) |
| 7865406b AM |
9719 | { |
| 9720 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9721 | && !h->def_dynamic) | |
| 9722 | { | |
| 9723 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9724 | *pgent = gent->next; | |
| 9725 | } | |
| 9726 | else | |
| 9727 | pgent = &gent->next; | |
| 9728 | } | |
| 9729 | else | |
| 9730 | *pgent = gent->next; | |
| 9731 | ||
| 9732 | if (!htab->do_multi_toc) | |
| 9733 | merge_got_entries (&h->got.glist); | |
| 9734 | ||
| 9735 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9736 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9737 | { |
| 9738 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9739 | Undefined weak syms won't yet be marked as dynamic, |
| 9740 | nor will all TLS symbols. */ | |
| 411e1bfb | 9741 | if (h->dynindx == -1 |
| b099ab9f | 9742 | && !h->forced_local |
| 25f23106 | 9743 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9744 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9745 | { |
| c152c796 | 9746 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9747 | return FALSE; |
| 9748 | } | |
| 65f38f15 | 9749 | |
| 0c8d6e5c | 9750 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9751 | abort (); |
| 0ffa91dd | 9752 | |
| 927be08e | 9753 | allocate_got (h, info, gent); |
| 411e1bfb | 9754 | } |
| 65f38f15 | 9755 | |
| 8a2058b5 AM |
9756 | if (!htab->elf.dynamic_sections_created |
| 9757 | && h->type != STT_GNU_IFUNC) | |
| 9758 | eh->dyn_relocs = NULL; | |
| 9759 | ||
| 9760 | if (eh->dyn_relocs != NULL) | |
| 65f38f15 | 9761 | { |
| 8a2058b5 AM |
9762 | struct elf_dyn_relocs *p, **pp; |
| 9763 | ||
| 57e7d118 AM |
9764 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9765 | dynamic pc-relative relocs against symbols which turn out to | |
| 9766 | be defined in regular objects. For the normal shared case, | |
| 9767 | discard space for relocs that have become local due to symbol | |
| 9768 | visibility changes. */ | |
| 9769 | ||
| 9770 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9771 | { |
| 57e7d118 AM |
9772 | /* Relocs that use pc_count are those that appear on a call |
| 9773 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9774 | can be generated via assembly. We want calls to | |
| 9775 | protected symbols to resolve directly to the function | |
| 9776 | rather than going via the plt. If people want function | |
| 9777 | pointer comparisons to work as expected then they should | |
| 9778 | avoid writing weird assembly. */ | |
| 9779 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9780 | { | |
| 57e7d118 AM |
9781 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9782 | { | |
| 9783 | p->count -= p->pc_count; | |
| 9784 | p->pc_count = 0; | |
| 9785 | if (p->count == 0) | |
| 9786 | *pp = p->next; | |
| 9787 | else | |
| 9788 | pp = &p->next; | |
| 9789 | } | |
| 9790 | } | |
| 65f38f15 | 9791 | |
| 57e7d118 AM |
9792 | /* Also discard relocs on undefined weak syms with |
| 9793 | non-default visibility. */ | |
| 9794 | if (eh->dyn_relocs != NULL | |
| 9795 | && h->root.type == bfd_link_hash_undefweak) | |
| 5bd4f169 | 9796 | { |
| 57e7d118 AM |
9797 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9798 | eh->dyn_relocs = NULL; | |
| 9799 | ||
| 9800 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9801 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9802 | else if (h->dynindx == -1 | |
| 9803 | && !h->forced_local) | |
| 9804 | { | |
| 9805 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9806 | return FALSE; | |
| 9807 | } | |
| 5bd4f169 | 9808 | } |
| 65f38f15 | 9809 | } |
| 57e7d118 | 9810 | else if (h->type == STT_GNU_IFUNC) |
| dfbb6ac9 | 9811 | { |
| 8a2058b5 AM |
9812 | /* A plt entry is always created when making direct calls to |
| 9813 | an ifunc, even when building a static executable, but | |
| 9814 | that doesn't cover all cases. We may have only an ifunc | |
| 9815 | initialised function pointer for a given ifunc symbol. | |
| 9816 | ||
| 9817 | For ELFv2, dynamic relocations are not required when | |
| 9818 | generating a global entry PLT stub. */ | |
| 9819 | if (abiversion (info->output_bfd) >= 2) | |
| 9820 | { | |
| 9821 | if (global_entry_stub (h)) | |
| 9822 | eh->dyn_relocs = NULL; | |
| 9823 | } | |
| 9824 | ||
| 9825 | /* For ELFv1 we have function descriptors. Descriptors need | |
| 9826 | to be treated like PLT entries and thus have dynamic | |
| 9827 | relocations. One exception is when the function | |
| 9828 | descriptor is copied into .dynbss (which should only | |
| 9829 | happen with ancient versions of gcc). */ | |
| 9830 | else if (h->needs_copy) | |
| dfbb6ac9 | 9831 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9832 | } |
| 9833 | else if (ELIMINATE_COPY_RELOCS) | |
| 9834 | { | |
| 8a2058b5 | 9835 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9836 | symbols which turn out to need copy relocs or are not |
| 9837 | dynamic. */ | |
| dfbb6ac9 | 9838 | |
| 8a2058b5 AM |
9839 | /* First make sure this symbol is output as a dynamic symbol. |
| 9840 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9841 | if (h->root.type == bfd_link_hash_undefweak | |
| 9842 | && !h->non_got_ref | |
| 9843 | && !h->def_regular | |
| 9844 | && h->dynindx == -1 | |
| 9845 | && !h->forced_local | |
| 9846 | && !bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9847 | return FALSE; | |
| 57e7d118 | 9848 | |
| 8a2058b5 AM |
9849 | if (h->non_got_ref |
| 9850 | || h->def_regular | |
| 9851 | || h->dynindx == -1) | |
| 9852 | eh->dyn_relocs = NULL; | |
| 57e7d118 AM |
9853 | } |
| 9854 | ||
| 9855 | /* Finally, allocate space. */ | |
| 9856 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9857 | { | |
| 9858 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9859 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9860 | sreloc = htab->elf.irelplt; | |
| 9861 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9862 | } |
| 65f38f15 | 9863 | } |
| 57e7d118 AM |
9864 | |
| 9865 | if ((htab->elf.dynamic_sections_created | |
| 9866 | && h->dynindx != -1 | |
| 9867 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) | |
| 9868 | || h->type == STT_GNU_IFUNC) | |
| 65f38f15 | 9869 | { |
| 57e7d118 AM |
9870 | struct plt_entry *pent; |
| 9871 | bfd_boolean doneone = FALSE; | |
| 9872 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9873 | if (pent->plt.refcount > 0) | |
| 9874 | { | |
| 9875 | if (!htab->elf.dynamic_sections_created | |
| 9876 | || h->dynindx == -1) | |
| 9877 | { | |
| 9878 | s = htab->elf.iplt; | |
| 9879 | pent->plt.offset = s->size; | |
| 9880 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9881 | s = htab->elf.irelplt; | |
| 9882 | } | |
| 9883 | else | |
| 9884 | { | |
| 9885 | /* If this is the first .plt entry, make room for the special | |
| 9886 | first entry. */ | |
| 9887 | s = htab->elf.splt; | |
| 9888 | if (s->size == 0) | |
| 9889 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9890 | |
| 57e7d118 | 9891 | pent->plt.offset = s->size; |
| 65f38f15 | 9892 | |
| 57e7d118 AM |
9893 | /* Make room for this entry. */ |
| 9894 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9895 | |
| 57e7d118 AM |
9896 | /* Make room for the .glink code. */ |
| 9897 | s = htab->glink; | |
| 9898 | if (s->size == 0) | |
| 9899 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9900 | if (htab->opd_abi) | |
| 9901 | { | |
| 9902 | /* We need bigger stubs past index 32767. */ | |
| 9903 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9904 | s->size += 4; | |
| 9905 | s->size += 2*4; | |
| 9906 | } | |
| 9907 | else | |
| 9908 | s->size += 4; | |
| 65f38f15 | 9909 | |
| 57e7d118 AM |
9910 | /* We also need to make an entry in the .rela.plt section. */ |
| 9911 | s = htab->elf.srelplt; | |
| 9912 | } | |
| 9913 | s->size += sizeof (Elf64_External_Rela); | |
| 9914 | doneone = TRUE; | |
| 9915 | } | |
| 9916 | else | |
| 9917 | pent->plt.offset = (bfd_vma) -1; | |
| 9918 | if (!doneone) | |
| 9919 | { | |
| 9920 | h->plt.plist = NULL; | |
| 9921 | h->needs_plt = 0; | |
| 9922 | } | |
| 65f38f15 | 9923 | } |
| 57e7d118 | 9924 | else |
| 65f38f15 | 9925 | { |
| 57e7d118 AM |
9926 | h->plt.plist = NULL; |
| 9927 | h->needs_plt = 0; | |
| 65f38f15 AM |
9928 | } |
| 9929 | ||
| b34976b6 | 9930 | return TRUE; |
| 65f38f15 AM |
9931 | } |
| 9932 | ||
| a345bc8d AM |
9933 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9934 | to set up space for global entry stubs. These are put in glink, | |
| 9935 | after the branch table. */ | |
| 65f38f15 | 9936 | |
| b34976b6 | 9937 | static bfd_boolean |
| a345bc8d | 9938 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9939 | { |
| a345bc8d AM |
9940 | struct bfd_link_info *info; |
| 9941 | struct ppc_link_hash_table *htab; | |
| 9942 | struct plt_entry *pent; | |
| 9943 | asection *s; | |
| 65f38f15 | 9944 | |
| a345bc8d AM |
9945 | if (h->root.type == bfd_link_hash_indirect) |
| 9946 | return TRUE; | |
| 65f38f15 | 9947 | |
| a345bc8d AM |
9948 | if (!h->pointer_equality_needed) |
| 9949 | return TRUE; | |
| 65f38f15 | 9950 | |
| a345bc8d AM |
9951 | if (h->def_regular) |
| 9952 | return TRUE; | |
| 65f38f15 | 9953 | |
| a345bc8d AM |
9954 | info = inf; |
| 9955 | htab = ppc_hash_table (info); | |
| 9956 | if (htab == NULL) | |
| 9957 | return FALSE; | |
| 9958 | ||
| 9959 | s = htab->glink; | |
| 9960 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9961 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9962 | && pent->addend == 0) | |
| 9963 | { | |
| afe397ea AM |
9964 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9965 | and we are not generating a shared library or pie, then we | |
| 9966 | need to define the symbol in the executable on a call stub. | |
| 9967 | This is to avoid text relocations. */ | |
| a345bc8d | 9968 | s->size = (s->size + 15) & -16; |
| 8a2058b5 | 9969 | h->root.type = bfd_link_hash_defined; |
| afe397ea AM |
9970 | h->root.u.def.section = s; |
| 9971 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9972 | s->size += 16; |
| 9973 | break; | |
| 9974 | } | |
| 9975 | return TRUE; | |
| 9976 | } | |
| 9977 | ||
| 9978 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9979 | read-only sections. */ | |
| 9980 | ||
| 9981 | static bfd_boolean | |
| 9982 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9983 | { | |
| 9984 | if (h->root.type == bfd_link_hash_indirect) | |
| 9985 | return TRUE; | |
| 9986 | ||
| 9987 | if (readonly_dynrelocs (h)) | |
| 9988 | { | |
| 9989 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9990 | ||
| 9991 | /* Not an error, just cut short the traversal. */ | |
| 9992 | return FALSE; | |
| 65f38f15 | 9993 | } |
| b34976b6 | 9994 | return TRUE; |
| 65f38f15 AM |
9995 | } |
| 9996 | ||
| 9997 | /* Set the sizes of the dynamic sections. */ | |
| 9998 | ||
| b34976b6 | 9999 | static bfd_boolean |
| ee67d69a | 10000 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 10001 | struct bfd_link_info *info) |
| 65f38f15 AM |
10002 | { |
| 10003 | struct ppc_link_hash_table *htab; | |
| 10004 | bfd *dynobj; | |
| 10005 | asection *s; | |
| b34976b6 | 10006 | bfd_boolean relocs; |
| 65f38f15 | 10007 | bfd *ibfd; |
| 7865406b | 10008 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
10009 | |
| 10010 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
10011 | if (htab == NULL) |
| 10012 | return FALSE; | |
| 10013 | ||
| 65f38f15 AM |
10014 | dynobj = htab->elf.dynobj; |
| 10015 | if (dynobj == NULL) | |
| 10016 | abort (); | |
| 10017 | ||
| 10018 | if (htab->elf.dynamic_sections_created) | |
| 10019 | { | |
| 10020 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 10021 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 10022 | { |
| 3d4d4302 | 10023 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
10024 | if (s == NULL) |
| 10025 | abort (); | |
| eea6121a | 10026 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
10027 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 10028 | } | |
| 10029 | } | |
| 10030 | ||
| 10031 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 10032 | relocs. */ | |
| c72f2fb2 | 10033 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 10034 | { |
| 411e1bfb AM |
10035 | struct got_entry **lgot_ents; |
| 10036 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
10037 | struct plt_entry **local_plt; |
| 10038 | struct plt_entry **end_local_plt; | |
| f961d9dd | 10039 | unsigned char *lgot_masks; |
| 65f38f15 AM |
10040 | bfd_size_type locsymcount; |
| 10041 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 10042 | |
| 0c8d6e5c | 10043 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
10044 | continue; |
| 10045 | ||
| 10046 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10047 | { | |
| 19e08130 | 10048 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10049 | |
| 6edfbbad | 10050 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10051 | { |
| ec338859 AM |
10052 | if (!bfd_is_abs_section (p->sec) |
| 10053 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10054 | { | |
| 10055 | /* Input section has been discarded, either because | |
| 10056 | it is a copy of a linkonce section or due to | |
| 10057 | linker script /DISCARD/, so we'll be discarding | |
| 10058 | the relocs too. */ | |
| 10059 | } | |
| 248866a8 | 10060 | else if (p->count != 0) |
| ec338859 | 10061 | { |
| 19e08130 AM |
10062 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10063 | if (p->ifunc) | |
| 33e44f2e | 10064 | srel = htab->elf.irelplt; |
| eea6121a | 10065 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10066 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10067 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10068 | } |
| 65f38f15 AM |
10069 | } |
| 10070 | } | |
| 10071 | ||
| 411e1bfb AM |
10072 | lgot_ents = elf_local_got_ents (ibfd); |
| 10073 | if (!lgot_ents) | |
| 65f38f15 AM |
10074 | continue; |
| 10075 | ||
| 0ffa91dd | 10076 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10077 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10078 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10079 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10080 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10081 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10082 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10083 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10084 | { |
| 0b8bcf0d | 10085 | struct got_entry **pent, *ent; |
| 411e1bfb | 10086 | |
| 0b8bcf0d AM |
10087 | pent = lgot_ents; |
| 10088 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10089 | if (ent->got.refcount > 0) |
| 10090 | { | |
| e7b938ca | 10091 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10092 | { |
| 927be08e | 10093 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10094 | *pent = ent->next; |
| 411e1bfb AM |
10095 | } |
| 10096 | else | |
| 10097 | { | |
| 19e08130 AM |
10098 | unsigned int ent_size = 8; |
| 10099 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10100 | ||
| eea6121a | 10101 | ent->got.offset = s->size; |
| e7b938ca | 10102 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10103 | { |
| 19e08130 AM |
10104 | ent_size *= 2; |
| 10105 | rel_size *= 2; | |
| 10106 | } | |
| 10107 | s->size += ent_size; | |
| 10108 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10109 | { | |
| 33e44f2e | 10110 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10111 | htab->got_reli_size += rel_size; |
| 10112 | } | |
| 0e1862bb | 10113 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
10114 | { |
| 10115 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10116 | srel->size += rel_size; | |
| 927be08e | 10117 | } |
| 0b8bcf0d | 10118 | pent = &ent->next; |
| 411e1bfb AM |
10119 | } |
| 10120 | } | |
| 10121 | else | |
| 0b8bcf0d | 10122 | *pent = ent->next; |
| 65f38f15 | 10123 | } |
| e054468f AM |
10124 | |
| 10125 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10126 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10127 | { | |
| 10128 | struct plt_entry *ent; | |
| 10129 | ||
| 10130 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10131 | if (ent->plt.refcount > 0) | |
| 10132 | { | |
| 33e44f2e | 10133 | s = htab->elf.iplt; |
| e054468f | 10134 | ent->plt.offset = s->size; |
| b9e5796b | 10135 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10136 | |
| 33e44f2e | 10137 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10138 | } |
| 10139 | else | |
| 10140 | ent->plt.offset = (bfd_vma) -1; | |
| 10141 | } | |
| 65f38f15 AM |
10142 | } |
| 10143 | ||
| 10144 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10145 | sym dynamic relocs. */ | |
| 4ce794b7 | 10146 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
10147 | /* Stash the end of glink branch table. */ |
| 10148 | if (htab->glink != NULL) | |
| 10149 | htab->glink->rawsize = htab->glink->size; | |
| 10150 | ||
| 0e1862bb | 10151 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10152 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10153 | |
| 7865406b | 10154 | first_tlsld = NULL; |
| c72f2fb2 | 10155 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10156 | { |
| 7865406b AM |
10157 | struct got_entry *ent; |
| 10158 | ||
| 0c8d6e5c | 10159 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10160 | continue; |
| 10161 | ||
| 7865406b AM |
10162 | ent = ppc64_tlsld_got (ibfd); |
| 10163 | if (ent->got.refcount > 0) | |
| 102890f0 | 10164 | { |
| 7865406b | 10165 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10166 | { |
| 7865406b AM |
10167 | ent->is_indirect = TRUE; |
| 10168 | ent->got.ent = first_tlsld; | |
| 10169 | } | |
| 10170 | else | |
| 10171 | { | |
| 10172 | if (first_tlsld == NULL) | |
| 10173 | first_tlsld = ent; | |
| 10174 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10175 | ent->got.offset = s->size; | |
| 10176 | ent->owner = ibfd; | |
| 10177 | s->size += 16; | |
| 0e1862bb | 10178 | if (bfd_link_pic (info)) |
| 7865406b AM |
10179 | { |
| 10180 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10181 | srel->size += sizeof (Elf64_External_Rela); | |
| 10182 | } | |
| 102890f0 AM |
10183 | } |
| 10184 | } | |
| 10185 | else | |
| 7865406b | 10186 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10187 | } |
| 10188 | ||
| 65f38f15 AM |
10189 | /* We now have determined the sizes of the various dynamic sections. |
| 10190 | Allocate memory for them. */ | |
| b34976b6 | 10191 | relocs = FALSE; |
| 65f38f15 AM |
10192 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10193 | { | |
| 10194 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10195 | continue; | |
| 10196 | ||
| 4ce794b7 | 10197 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10198 | /* These haven't been allocated yet; don't strip. */ |
| 10199 | continue; | |
| 33e44f2e AM |
10200 | else if (s == htab->elf.sgot |
| 10201 | || s == htab->elf.splt | |
| 10202 | || s == htab->elf.iplt | |
| c456f082 AM |
10203 | || s == htab->glink |
| 10204 | || s == htab->dynbss) | |
| 65f38f15 AM |
10205 | { |
| 10206 | /* Strip this section if we don't need it; see the | |
| 10207 | comment below. */ | |
| 5bd4f169 | 10208 | } |
| 58d180e8 AM |
10209 | else if (s == htab->glink_eh_frame) |
| 10210 | { | |
| 10211 | if (!bfd_is_abs_section (s->output_section)) | |
| 10212 | /* Not sized yet. */ | |
| 10213 | continue; | |
| 10214 | } | |
| 70cc837d | 10215 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10216 | { |
| c456f082 | 10217 | if (s->size != 0) |
| 5bd4f169 | 10218 | { |
| 33e44f2e | 10219 | if (s != htab->elf.srelplt) |
| b34976b6 | 10220 | relocs = TRUE; |
| 5bd4f169 AM |
10221 | |
| 10222 | /* We use the reloc_count field as a counter if we need | |
| 10223 | to copy relocs into the output file. */ | |
| 10224 | s->reloc_count = 0; | |
| 10225 | } | |
| 10226 | } | |
| 65f38f15 | 10227 | else |
| 5bd4f169 AM |
10228 | { |
| 10229 | /* It's not one of our sections, so don't allocate space. */ | |
| 10230 | continue; | |
| 10231 | } | |
| 10232 | ||
| eea6121a | 10233 | if (s->size == 0) |
| 5bd4f169 | 10234 | { |
| c456f082 AM |
10235 | /* If we don't need this section, strip it from the |
| 10236 | output file. This is mostly to handle .rela.bss and | |
| 10237 | .rela.plt. We must create both sections in | |
| 10238 | create_dynamic_sections, because they must be created | |
| 10239 | before the linker maps input sections to output | |
| 10240 | sections. The linker does that before | |
| 10241 | adjust_dynamic_symbol is called, and it is that | |
| 10242 | function which decides whether anything needs to go | |
| 10243 | into these sections. */ | |
| 8423293d | 10244 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10245 | continue; |
| 10246 | } | |
| 10247 | ||
| c456f082 | 10248 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10249 | continue; |
| 10250 | ||
| 65f38f15 AM |
10251 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10252 | here in case unused entries are not reclaimed before the | |
| 10253 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10254 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10255 | sections instead of garbage. | |
| 10256 | We also rely on the section contents being zero when writing | |
| 10257 | the GOT. */ | |
| eea6121a | 10258 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10259 | if (s->contents == NULL) |
| b34976b6 | 10260 | return FALSE; |
| 5bd4f169 AM |
10261 | } |
| 10262 | ||
| c72f2fb2 | 10263 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10264 | { |
| 0c8d6e5c | 10265 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10266 | continue; |
| 10267 | ||
| e717da7e | 10268 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10269 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10270 | { |
| eea6121a | 10271 | if (s->size == 0) |
| 8423293d | 10272 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10273 | else |
| 10274 | { | |
| eea6121a | 10275 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10276 | if (s->contents == NULL) |
| 10277 | return FALSE; | |
| 10278 | } | |
| 10279 | } | |
| 10280 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10281 | if (s != NULL) | |
| 10282 | { | |
| eea6121a | 10283 | if (s->size == 0) |
| 8423293d | 10284 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10285 | else |
| 10286 | { | |
| eea6121a | 10287 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10288 | if (s->contents == NULL) |
| 10289 | return FALSE; | |
| 10290 | relocs = TRUE; | |
| 10291 | s->reloc_count = 0; | |
| 10292 | } | |
| 10293 | } | |
| 10294 | } | |
| 10295 | ||
| e86ce104 | 10296 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10297 | { |
| e8910a83 AM |
10298 | bfd_boolean tls_opt; |
| 10299 | ||
| 5bd4f169 AM |
10300 | /* Add some entries to the .dynamic section. We fill in the |
| 10301 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10302 | must add the entries now so that we get the correct size for | |
| 10303 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10304 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10305 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10306 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10307 | |
| 0e1862bb | 10308 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10309 | { |
| dc810e39 | 10310 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10311 | return FALSE; |
| 5bd4f169 AM |
10312 | } |
| 10313 | ||
| 33e44f2e | 10314 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10315 | { |
| dc810e39 AM |
10316 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10317 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10318 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10319 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10320 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10321 | return FALSE; |
| 5bd4f169 AM |
10322 | } |
| 10323 | ||
| ee67d69a | 10324 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10325 | { |
| 10326 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10327 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10328 | return FALSE; |
| 19397422 AM |
10329 | } |
| 10330 | ||
| 7c9cf415 | 10331 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10332 | && htab->tls_get_addr_fd != NULL |
| 10333 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10334 | if (tls_opt || !htab->opd_abi) | |
| 10335 | { | |
| 10336 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10337 | return FALSE; | |
| 10338 | } | |
| a7f2871e | 10339 | |
| 5bd4f169 AM |
10340 | if (relocs) |
| 10341 | { | |
| dc810e39 AM |
10342 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10343 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10344 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10345 | return FALSE; |
| 5bd4f169 | 10346 | |
| 65f38f15 AM |
10347 | /* If any dynamic relocs apply to a read-only section, |
| 10348 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10349 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10350 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10351 | |
| 65f38f15 | 10352 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10353 | { |
| 65f38f15 | 10354 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10355 | return FALSE; |
| 5bd4f169 | 10356 | } |
| 5bd4f169 | 10357 | } |
| 5bd4f169 | 10358 | } |
| 65f38f15 | 10359 | #undef add_dynamic_entry |
| 5bd4f169 | 10360 | |
| b34976b6 | 10361 | return TRUE; |
| 5bd4f169 AM |
10362 | } |
| 10363 | ||
| a345bc8d AM |
10364 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10365 | ||
| 10366 | static bfd_boolean | |
| 10367 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10368 | { | |
| 10369 | if (h->plt.plist != NULL | |
| 10370 | && !h->def_regular | |
| 10371 | && !h->pointer_equality_needed) | |
| 10372 | return FALSE; | |
| 10373 | ||
| 10374 | return _bfd_elf_hash_symbol (h); | |
| 10375 | } | |
| 10376 | ||
| 721956f4 | 10377 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10378 | |
| 4ce794b7 AM |
10379 | static inline enum ppc_stub_type |
| 10380 | ppc_type_of_stub (asection *input_sec, | |
| 10381 | const Elf_Internal_Rela *rel, | |
| 10382 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10383 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10384 | bfd_vma destination, |
| 10385 | unsigned long local_off) | |
| 5bd4f169 | 10386 | { |
| 721956f4 AM |
10387 | struct ppc_link_hash_entry *h = *hash; |
| 10388 | bfd_vma location; | |
| 10389 | bfd_vma branch_offset; | |
| 10390 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10391 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10392 | |
| 721956f4 AM |
10393 | if (h != NULL) |
| 10394 | { | |
| e054468f | 10395 | struct plt_entry *ent; |
| 7fe2b9a6 | 10396 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10397 | if (h->oh != NULL |
| 10398 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10399 | { |
| 10400 | fdh = ppc_follow_link (h->oh); | |
| 10401 | *hash = fdh; | |
| 10402 | } | |
| 8387904d | 10403 | |
| e054468f AM |
10404 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10405 | if (ent->addend == rel->r_addend | |
| 10406 | && ent->plt.offset != (bfd_vma) -1) | |
| 10407 | { | |
| e054468f AM |
10408 | *plt_ent = ent; |
| 10409 | return ppc_stub_plt_call; | |
| 10410 | } | |
| 5bd4f169 | 10411 | |
| 7fe2b9a6 AM |
10412 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10413 | either a defined function descriptor or a defined entry symbol | |
| 10414 | in a regular object file, then it is pointless trying to make | |
| 10415 | any other type of stub. */ | |
| 854b41e7 AM |
10416 | if (!is_static_defined (&fdh->elf) |
| 10417 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10418 | return ppc_stub_none; |
| 5d1634d7 | 10419 | } |
| e054468f AM |
10420 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10421 | { | |
| 10422 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10423 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10424 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10425 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10426 | ||
| 10427 | if (local_plt[r_symndx] != NULL) | |
| 10428 | { | |
| 10429 | struct plt_entry *ent; | |
| 10430 | ||
| 10431 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10432 | if (ent->addend == rel->r_addend | |
| 10433 | && ent->plt.offset != (bfd_vma) -1) | |
| 10434 | { | |
| 10435 | *plt_ent = ent; | |
| 10436 | return ppc_stub_plt_call; | |
| 10437 | } | |
| 10438 | } | |
| 10439 | } | |
| 5d1634d7 | 10440 | |
| 721956f4 AM |
10441 | /* Determine where the call point is. */ |
| 10442 | location = (input_sec->output_offset | |
| 10443 | + input_sec->output_section->vma | |
| 10444 | + rel->r_offset); | |
| 5d1634d7 | 10445 | |
| 721956f4 AM |
10446 | branch_offset = destination - location; |
| 10447 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10448 | |
| 721956f4 AM |
10449 | /* Determine if a long branch stub is needed. */ |
| 10450 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10451 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10452 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10453 | |
| 6911b7dc | 10454 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10455 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10456 | is needed later. */ | |
| 10457 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10458 | |
| 721956f4 | 10459 | return ppc_stub_none; |
| 5d1634d7 AM |
10460 | } |
| 10461 | ||
| 794e51c0 AM |
10462 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10463 | to update a plt entry in one thread and have another thread see a | |
| 10464 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10465 | barrier in the call stub. One solution is to make the load of the | |
| 10466 | toc word seem to appear to depend on the load of the function entry | |
| 10467 | word. Another solution is to test for r2 being zero, and branch to | |
| 10468 | the appropriate glink entry if so. | |
| 10469 | ||
| 10470 | . fake dep barrier compare | |
| 71a39c98 AM |
10471 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10472 | . mtctr 12 mtctr 12 | |
| 10473 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10474 | . add 2,2,11 cmpldi 2,0 |
| 10475 | . ld 2,xxx+8(2) bnectr+ | |
| 10476 | . bctr b <glink_entry> | |
| 10477 | ||
| 10478 | The solution involving the compare turns out to be faster, so | |
| 10479 | that's what we use unless the branch won't reach. */ | |
| 10480 | ||
| 10481 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10482 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10483 | |
| 5d1634d7 AM |
10484 | #define PPC_LO(v) ((v) & 0xffff) |
| 10485 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10486 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10487 | ||
| 794e51c0 AM |
10488 | static inline unsigned int |
| 10489 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10490 | struct ppc_stub_hash_entry *stub_entry, | |
| 10491 | bfd_vma off) | |
| 10492 | { | |
| b9e5796b AM |
10493 | unsigned size = 12; |
| 10494 | ||
| 10495 | if (ALWAYS_EMIT_R2SAVE | |
| 10496 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10497 | size += 4; | |
| 10498 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10499 | size += 4; |
| b9e5796b AM |
10500 | if (htab->opd_abi) |
| 10501 | { | |
| 10502 | size += 4; | |
| e7d1c40c | 10503 | if (htab->params->plt_static_chain) |
| b9e5796b | 10504 | size += 4; |
| bd4d2eaa AM |
10505 | if (htab->params->plt_thread_safe |
| 10506 | && htab->elf.dynamic_sections_created | |
| 10507 | && stub_entry->h != NULL | |
| 10508 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10509 | size += 8; |
| e7d1c40c | 10510 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10511 | size += 4; |
| 10512 | } | |
| 794e51c0 AM |
10513 | if (stub_entry->h != NULL |
| 10514 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10515 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10516 | && htab->params->tls_get_addr_opt) |
| 794e51c0 AM |
10517 | size += 13 * 4; |
| 10518 | return size; | |
| 10519 | } | |
| 10520 | ||
| 10521 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10522 | then return the padding needed to do so. */ | |
| 10523 | static inline unsigned int | |
| 10524 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10525 | struct ppc_stub_hash_entry *stub_entry, | |
| 10526 | bfd_vma plt_off) | |
| 10527 | { | |
| e7d1c40c | 10528 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10529 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10530 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10531 | |
| 10532 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10533 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10534 | return stub_align - (stub_off & (stub_align - 1)); |
| 10535 | return 0; | |
| 10536 | } | |
| 10537 | ||
| 10538 | /* Build a .plt call stub. */ | |
| 10539 | ||
| 10540 | static inline bfd_byte * | |
| 10541 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10542 | struct ppc_stub_hash_entry *stub_entry, | |
| 10543 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10544 | { | |
| e7d1c40c | 10545 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10546 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10547 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10548 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10549 | && htab->elf.dynamic_sections_created | |
| 10550 | && stub_entry->h != NULL | |
| 10551 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10552 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10553 | bfd_vma cmp_branch_off = 0; | |
| 10554 | ||
| 10555 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10556 | && plt_load_toc |
| 794e51c0 | 10557 | && plt_thread_safe |
| bd4d2eaa AM |
10558 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10559 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10560 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10561 | { |
| 10562 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10563 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10564 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10565 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10566 | bfd_vma to, from; | |
| 10567 | ||
| 68d62958 AM |
10568 | if (pltindex > 32768) |
| 10569 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10570 | to = (glinkoff |
| 10571 | + htab->glink->output_offset | |
| 10572 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10573 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10574 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10575 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10576 | + 4 * (PPC_HA (offset) != 0) | |
| 10577 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10578 | != PPC_HA (offset)) | |
| 10579 | + 4 * (plt_static_chain != 0) | |
| 10580 | + 20 | |
| 6f20ed8a AM |
10581 | + stub_entry->group->stub_sec->output_offset |
| 10582 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10583 | cmp_branch_off = to - from; |
| 10584 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10585 | } | |
| 10586 | ||
| ac2df442 AM |
10587 | if (PPC_HA (offset) != 0) |
| 10588 | { | |
| 176a0d42 AM |
10589 | if (r != NULL) |
| 10590 | { | |
| 794e51c0 AM |
10591 | if (ALWAYS_EMIT_R2SAVE |
| 10592 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10593 | r[0].r_offset += 4; | |
| 176a0d42 | 10594 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10595 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10596 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10597 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10598 | if (plt_load_toc) |
| 176a0d42 | 10599 | { |
| b9e5796b | 10600 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10601 | { |
| b9e5796b AM |
10602 | r[2].r_offset = r[1].r_offset + 4; |
| 10603 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10604 | r[2].r_addend = r[0].r_addend; | |
| 10605 | } | |
| 10606 | else | |
| 10607 | { | |
| 10608 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10609 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10610 | r[2].r_addend = r[0].r_addend + 8; | |
| 10611 | if (plt_static_chain) | |
| 10612 | { | |
| 10613 | r[3].r_offset = r[2].r_offset + 4; | |
| 10614 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10615 | r[3].r_addend = r[0].r_addend + 16; | |
| 10616 | } | |
| c7131b65 | 10617 | } |
| 176a0d42 AM |
10618 | } |
| 10619 | } | |
| 794e51c0 AM |
10620 | if (ALWAYS_EMIT_R2SAVE |
| 10621 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10622 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10623 | if (plt_load_toc) |
| 10624 | { | |
| 10625 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10626 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10627 | } | |
| 10628 | else | |
| 10629 | { | |
| 10630 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10631 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10632 | } | |
| b9e5796b AM |
10633 | if (plt_load_toc |
| 10634 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10635 | { |
| 71a39c98 | 10636 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10637 | offset = 0; |
| 10638 | } | |
| 71a39c98 | 10639 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10640 | if (plt_load_toc) |
| 794e51c0 | 10641 | { |
| b9e5796b AM |
10642 | if (use_fake_dep) |
| 10643 | { | |
| 10644 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10645 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10646 | } | |
| 10647 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10648 | if (plt_static_chain) | |
| 10649 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10650 | } |
| ac2df442 AM |
10651 | } |
| 10652 | else | |
| 10653 | { | |
| 176a0d42 AM |
10654 | if (r != NULL) |
| 10655 | { | |
| 794e51c0 AM |
10656 | if (ALWAYS_EMIT_R2SAVE |
| 10657 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10658 | r[0].r_offset += 4; | |
| 176a0d42 | 10659 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10660 | if (plt_load_toc) |
| 176a0d42 | 10661 | { |
| b9e5796b | 10662 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10663 | { |
| b9e5796b AM |
10664 | r[1].r_offset = r[0].r_offset + 4; |
| 10665 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10666 | r[1].r_addend = r[0].r_addend; | |
| 10667 | } | |
| 10668 | else | |
| 10669 | { | |
| 10670 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10671 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10672 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10673 | if (plt_static_chain) | |
| 10674 | { | |
| 10675 | r[2].r_offset = r[1].r_offset + 4; | |
| 10676 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10677 | r[2].r_addend = r[0].r_addend + 8; | |
| 10678 | } | |
| c7131b65 | 10679 | } |
| 176a0d42 AM |
10680 | } |
| 10681 | } | |
| 794e51c0 AM |
10682 | if (ALWAYS_EMIT_R2SAVE |
| 10683 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10684 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10685 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10686 | if (plt_load_toc |
| 10687 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10688 | { |
| 10689 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10690 | offset = 0; | |
| 10691 | } | |
| 71a39c98 | 10692 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10693 | if (plt_load_toc) |
| 794e51c0 | 10694 | { |
| b9e5796b AM |
10695 | if (use_fake_dep) |
| 10696 | { | |
| 10697 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10698 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10699 | } | |
| 10700 | if (plt_static_chain) | |
| 10701 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10702 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10703 | } |
| ac2df442 | 10704 | } |
| b9e5796b | 10705 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10706 | { |
| 10707 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10708 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10709 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10710 | } |
| 10711 | else | |
| 10712 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10713 | return p; |
| 10714 | } | |
| 10715 | ||
| a7f2871e AM |
10716 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10717 | ||
| 10718 | #define LD_R11_0R3 0xe9630000 | |
| 10719 | #define LD_R12_0R3 0xe9830000 | |
| 10720 | #define MR_R0_R3 0x7c601b78 | |
| 10721 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10722 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10723 | #define BEQLR 0x4d820020 | |
| 10724 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10725 | #define STD_R11_0R1 0xf9610000 |
| 10726 | #define BCTRL 0x4e800421 | |
| 10727 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10728 | #define MTLR_R11 0x7d6803a6 |
| 10729 | ||
| 10730 | static inline bfd_byte * | |
| 794e51c0 AM |
10731 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10732 | struct ppc_stub_hash_entry *stub_entry, | |
| 10733 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10734 | { |
| e7d1c40c | 10735 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10736 | |
| a7f2871e AM |
10737 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10738 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10739 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10740 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10741 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10742 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10743 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10744 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10745 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10746 | |
| 10747 | if (r != NULL) | |
| 10748 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10749 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10750 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10751 | ||
| a078d95a | 10752 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10753 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10754 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10755 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10756 | ||
| 10757 | return p; | |
| 10758 | } | |
| 10759 | ||
| 176a0d42 AM |
10760 | static Elf_Internal_Rela * |
| 10761 | get_relocs (asection *sec, int count) | |
| 10762 | { | |
| 10763 | Elf_Internal_Rela *relocs; | |
| 10764 | struct bfd_elf_section_data *elfsec_data; | |
| 10765 | ||
| 10766 | elfsec_data = elf_section_data (sec); | |
| 10767 | relocs = elfsec_data->relocs; | |
| 10768 | if (relocs == NULL) | |
| 10769 | { | |
| 10770 | bfd_size_type relsize; | |
| 10771 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10772 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10773 | if (relocs == NULL) | |
| 10774 | return NULL; | |
| 10775 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10776 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10777 | sizeof (Elf_Internal_Shdr)); | |
| 10778 | if (elfsec_data->rela.hdr == NULL) | |
| 10779 | return NULL; | |
| 10780 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10781 | * sizeof (Elf64_External_Rela)); | |
| 10782 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10783 | sec->reloc_count = 0; |
| 10784 | } | |
| 10785 | relocs += sec->reloc_count; | |
| 10786 | sec->reloc_count += count; | |
| 10787 | return relocs; | |
| 10788 | } | |
| 10789 | ||
| aa374f67 | 10790 | static bfd_vma |
| 25f53a85 | 10791 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10792 | struct ppc_stub_hash_entry *stub_entry) |
| 10793 | { | |
| 25f53a85 | 10794 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10795 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10796 | |
| 10797 | if (r2off == 0) | |
| 10798 | { | |
| 10799 | /* Support linking -R objects. Get the toc pointer from the | |
| 10800 | opd entry. */ | |
| 10801 | char buf[8]; | |
| b9e5796b AM |
10802 | if (!htab->opd_abi) |
| 10803 | return r2off; | |
| aa374f67 AM |
10804 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10805 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10806 | ||
| 10807 | if (strcmp (opd->name, ".opd") != 0 | |
| 10808 | || opd->reloc_count != 0) | |
| 10809 | { | |
| bc30df16 | 10810 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10811 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10812 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10813 | return (bfd_vma) -1; |
| aa374f67 AM |
10814 | } |
| 10815 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10816 | return (bfd_vma) -1; |
| aa374f67 | 10817 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10818 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10819 | } |
| 6f20ed8a | 10820 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10821 | return r2off; |
| 10822 | } | |
| 10823 | ||
| b34976b6 | 10824 | static bfd_boolean |
| 4ce794b7 | 10825 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10826 | { |
| 721956f4 AM |
10827 | struct ppc_stub_hash_entry *stub_entry; |
| 10828 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10829 | struct bfd_link_info *info; |
| 10830 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10831 | bfd_byte *loc; |
| 10832 | bfd_byte *p; | |
| ee75fd95 | 10833 | bfd_vma dest, off; |
| 721956f4 | 10834 | int size; |
| 176a0d42 | 10835 | Elf_Internal_Rela *r; |
| e054468f | 10836 | asection *plt; |
| 5d1634d7 | 10837 | |
| 721956f4 AM |
10838 | /* Massage our args to the form they really have. */ |
| 10839 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10840 | info = in_arg; |
| 5d1634d7 | 10841 | |
| 5d1634d7 | 10842 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10843 | if (htab == NULL) |
| 10844 | return FALSE; | |
| 5d1634d7 | 10845 | |
| 721956f4 | 10846 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10847 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10848 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10849 | |
| 4ce794b7 | 10850 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10851 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10852 | { |
| 721956f4 | 10853 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10854 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10855 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10856 | dest = (stub_entry->target_value |
| 10857 | + stub_entry->target_section->output_offset | |
| 10858 | + stub_entry->target_section->output_section->vma); | |
| 10859 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10860 | off = dest; | |
| 5d1634d7 | 10861 | |
| 721956f4 AM |
10862 | /* And this is where we are coming from. */ |
| 10863 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10864 | + stub_entry->group->stub_sec->output_offset |
| 10865 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10866 | |
| ac2df442 AM |
10867 | size = 4; |
| 10868 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10869 | { |
| 25f53a85 | 10870 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10871 | |
| a7c49797 | 10872 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10873 | { |
| 10874 | htab->stub_error = TRUE; | |
| 10875 | return FALSE; | |
| 10876 | } | |
| e7d1c40c | 10877 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10878 | loc += 4; |
| a7c49797 | 10879 | size = 8; |
| ac2df442 AM |
10880 | if (PPC_HA (r2off) != 0) |
| 10881 | { | |
| e7d1c40c AM |
10882 | bfd_put_32 (htab->params->stub_bfd, |
| 10883 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10884 | loc += 4; |
| a7c49797 AM |
10885 | size += 4; |
| 10886 | } | |
| 10887 | if (PPC_LO (r2off) != 0) | |
| 10888 | { | |
| 10889 | bfd_put_32 (htab->params->stub_bfd, | |
| 10890 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10891 | loc += 4; | |
| 10892 | size += 4; | |
| ac2df442 | 10893 | } |
| ac2df442 | 10894 | off -= size - 4; |
| ad8e1ba5 | 10895 | } |
| e7d1c40c | 10896 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10897 | |
| 5c3dead3 AM |
10898 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10899 | { | |
| bc30df16 AM |
10900 | info->callbacks->einfo |
| 10901 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10902 | stub_entry->root.string); | |
| 5c3dead3 AM |
10903 | htab->stub_error = TRUE; |
| 10904 | return FALSE; | |
| 10905 | } | |
| ee75fd95 AM |
10906 | |
| 10907 | if (info->emitrelocations) | |
| 10908 | { | |
| 6f20ed8a | 10909 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10910 | if (r == NULL) |
| 10911 | return FALSE; | |
| 6f20ed8a | 10912 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10913 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10914 | r->r_addend = dest; | |
| 10915 | if (stub_entry->h != NULL) | |
| 10916 | { | |
| 10917 | struct elf_link_hash_entry **hashes; | |
| 10918 | unsigned long symndx; | |
| 10919 | struct ppc_link_hash_entry *h; | |
| 10920 | ||
| e7d1c40c | 10921 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10922 | if (hashes == NULL) |
| 10923 | { | |
| 10924 | bfd_size_type hsize; | |
| 10925 | ||
| 10926 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10927 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10928 | if (hashes == NULL) |
| 10929 | return FALSE; | |
| e7d1c40c | 10930 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10931 | htab->stub_globals = 1; |
| 10932 | } | |
| 10933 | symndx = htab->stub_globals++; | |
| 10934 | h = stub_entry->h; | |
| 10935 | hashes[symndx] = &h->elf; | |
| 10936 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10937 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10938 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10939 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10940 | /* H is an opd symbol. The addend must be zero. */ | |
| 10941 | r->r_addend = 0; | |
| 10942 | else | |
| 10943 | { | |
| 10944 | off = (h->elf.root.u.def.value | |
| 10945 | + h->elf.root.u.def.section->output_offset | |
| 10946 | + h->elf.root.u.def.section->output_section->vma); | |
| 10947 | r->r_addend -= off; | |
| 10948 | } | |
| 10949 | } | |
| 10950 | } | |
| 721956f4 | 10951 | break; |
| e86ce104 | 10952 | |
| 721956f4 | 10953 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10954 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10955 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10956 | stub_entry->root.string + 9, | |
| b34976b6 | 10957 | FALSE, FALSE); |
| 721956f4 AM |
10958 | if (br_entry == NULL) |
| 10959 | { | |
| 8de848d8 | 10960 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10961 | stub_entry->root.string); |
| b34976b6 AM |
10962 | htab->stub_error = TRUE; |
| 10963 | return FALSE; | |
| 721956f4 AM |
10964 | } |
| 10965 | ||
| 176a0d42 AM |
10966 | dest = (stub_entry->target_value |
| 10967 | + stub_entry->target_section->output_offset | |
| 10968 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10969 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10970 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10971 | |
| 176a0d42 | 10972 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10973 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10974 | |
| f94498ff | 10975 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10976 | { |
| f94498ff | 10977 | br_entry->iter = 0; |
| 84f5d08e | 10978 | |
| f94498ff | 10979 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10980 | { |
| f94498ff AM |
10981 | /* Create a reloc for the branch lookup table entry. */ |
| 10982 | Elf_Internal_Rela rela; | |
| 10983 | bfd_byte *rl; | |
| 10984 | ||
| 10985 | rela.r_offset = (br_entry->offset | |
| 10986 | + htab->brlt->output_offset | |
| 10987 | + htab->brlt->output_section->vma); | |
| 10988 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10989 | rela.r_addend = dest; |
| f94498ff AM |
10990 | |
| 10991 | rl = htab->relbrlt->contents; | |
| 10992 | rl += (htab->relbrlt->reloc_count++ | |
| 10993 | * sizeof (Elf64_External_Rela)); | |
| 10994 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10995 | } | |
| 10996 | else if (info->emitrelocations) | |
| 10997 | { | |
| 176a0d42 AM |
10998 | r = get_relocs (htab->brlt, 1); |
| 10999 | if (r == NULL) | |
| 11000 | return FALSE; | |
| 11001 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 11002 | normal reloc processing. Symbols and offsets are not | |
| 11003 | translated from input file to output file form, so | |
| 11004 | set up the offset per the output file. */ | |
| f94498ff AM |
11005 | r->r_offset = (br_entry->offset |
| 11006 | + htab->brlt->output_offset | |
| 11007 | + htab->brlt->output_section->vma); | |
| 11008 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 11009 | r->r_addend = dest; |
| 84f5d08e | 11010 | } |
| 84f5d08e | 11011 | } |
| 721956f4 | 11012 | |
| 176a0d42 AM |
11013 | dest = (br_entry->offset |
| 11014 | + htab->brlt->output_offset | |
| 11015 | + htab->brlt->output_section->vma); | |
| 11016 | ||
| 11017 | off = (dest | |
| 4ce794b7 | 11018 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 11019 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11020 | |
| ad8e1ba5 | 11021 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11022 | { |
| 25f53a85 | 11023 | info->callbacks->einfo |
| bc30df16 | 11024 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 11025 | stub_entry->root.string); |
| 5d1634d7 | 11026 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11027 | htab->stub_error = TRUE; |
| 11028 | return FALSE; | |
| 5d1634d7 | 11029 | } |
| 41bd81ab | 11030 | |
| 176a0d42 AM |
11031 | if (info->emitrelocations) |
| 11032 | { | |
| 6f20ed8a | 11033 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11034 | if (r == NULL) |
| 11035 | return FALSE; | |
| 6f20ed8a | 11036 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11037 | if (bfd_big_endian (info->output_bfd)) |
| 11038 | r[0].r_offset += 2; | |
| 00f412ee | 11039 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11040 | r[0].r_offset += 4; |
| 11041 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11042 | r[0].r_addend = dest; | |
| 11043 | if (PPC_HA (off) != 0) | |
| 11044 | { | |
| 11045 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11046 | r[1].r_offset = r[0].r_offset + 4; | |
| 11047 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11048 | r[1].r_addend = r[0].r_addend; | |
| 11049 | } | |
| 11050 | } | |
| 11051 | ||
| 00f412ee | 11052 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11053 | { |
| 176a0d42 | 11054 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11055 | { |
| 11056 | size = 16; | |
| e7d1c40c | 11057 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11058 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11059 | loc += 4; |
| e7d1c40c | 11060 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11061 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11062 | } |
| 11063 | else | |
| 11064 | { | |
| 11065 | size = 12; | |
| e7d1c40c AM |
11066 | bfd_put_32 (htab->params->stub_bfd, |
| 11067 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 11068 | } |
| ad8e1ba5 AM |
11069 | } |
| 11070 | else | |
| 11071 | { | |
| 25f53a85 | 11072 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11073 | |
| a7c49797 | 11074 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11075 | { |
| 11076 | htab->stub_error = TRUE; | |
| 11077 | return FALSE; | |
| 11078 | } | |
| ad8e1ba5 | 11079 | |
| e7d1c40c | 11080 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 11081 | loc += 4; |
| 00f412ee | 11082 | size = 16; |
| 176a0d42 | 11083 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11084 | { |
| 11085 | size += 4; | |
| e7d1c40c | 11086 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11087 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11088 | loc += 4; |
| e7d1c40c | 11089 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11090 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11091 | } |
| 11092 | else | |
| e7d1c40c | 11093 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
11094 | |
| 11095 | if (PPC_HA (r2off) != 0) | |
| 11096 | { | |
| 11097 | size += 4; | |
| 00f412ee | 11098 | loc += 4; |
| e7d1c40c AM |
11099 | bfd_put_32 (htab->params->stub_bfd, |
| 11100 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
11101 | } |
| 11102 | if (PPC_LO (r2off) != 0) | |
| 11103 | { | |
| 11104 | size += 4; | |
| ac2df442 | 11105 | loc += 4; |
| e7d1c40c AM |
11106 | bfd_put_32 (htab->params->stub_bfd, |
| 11107 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 11108 | } |
| ad8e1ba5 AM |
11109 | } |
| 11110 | loc += 4; | |
| e7d1c40c | 11111 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 11112 | loc += 4; |
| e7d1c40c | 11113 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 11114 | break; |
| 5d1634d7 | 11115 | |
| 721956f4 | 11116 | case ppc_stub_plt_call: |
| 794e51c0 | 11117 | case ppc_stub_plt_call_r2save: |
| e054468f | 11118 | if (stub_entry->h != NULL |
| b31867b6 AM |
11119 | && stub_entry->h->is_func_descriptor |
| 11120 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11121 | { |
| b31867b6 AM |
11122 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11123 | ||
| 11124 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11125 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11126 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11127 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11128 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11129 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11130 | } |
| 11131 | ||
| 721956f4 | 11132 | /* Now build the stub. */ |
| e054468f | 11133 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11134 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11135 | abort (); |
| 11136 | ||
| 33e44f2e | 11137 | plt = htab->elf.splt; |
| 25f23106 AM |
11138 | if (!htab->elf.dynamic_sections_created |
| 11139 | || stub_entry->h == NULL | |
| 11140 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11141 | plt = htab->elf.iplt; |
| e054468f AM |
11142 | |
| 11143 | dest += plt->output_offset + plt->output_section->vma; | |
| 11144 | ||
| 11145 | if (stub_entry->h == NULL | |
| 11146 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11147 | { | |
| 11148 | Elf_Internal_Rela rela; | |
| 11149 | bfd_byte *rl; | |
| 11150 | ||
| 11151 | rela.r_offset = dest; | |
| ee67d69a AM |
11152 | if (htab->opd_abi) |
| 11153 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11154 | else | |
| 11155 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11156 | rela.r_addend = (stub_entry->target_value |
| 11157 | + stub_entry->target_section->output_offset | |
| 11158 | + stub_entry->target_section->output_section->vma); | |
| 11159 | ||
| 33e44f2e AM |
11160 | rl = (htab->elf.irelplt->contents |
| 11161 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11162 | * sizeof (Elf64_External_Rela))); |
| 11163 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
11164 | stub_entry->plt_ent->plt.offset |= 1; |
| 11165 | } | |
| 176a0d42 AM |
11166 | |
| 11167 | off = (dest | |
| e054468f | 11168 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11169 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11170 | |
| ad8e1ba5 | 11171 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11172 | { |
| 25f53a85 | 11173 | info->callbacks->einfo |
| 695344c0 | 11174 | /* xgettext:c-format */ |
| bc30df16 | 11175 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11176 | stub_entry->h != NULL |
| 11177 | ? stub_entry->h->elf.root.root.string | |
| 11178 | : "<local sym>"); | |
| 721956f4 | 11179 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11180 | htab->stub_error = TRUE; |
| 11181 | return FALSE; | |
| 721956f4 AM |
11182 | } |
| 11183 | ||
| e7d1c40c | 11184 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11185 | { |
| 11186 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11187 | ||
| 6f20ed8a AM |
11188 | stub_entry->group->stub_sec->size += pad; |
| 11189 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11190 | loc += pad; |
| 11191 | } | |
| 11192 | ||
| 176a0d42 AM |
11193 | r = NULL; |
| 11194 | if (info->emitrelocations) | |
| 11195 | { | |
| 6f20ed8a | 11196 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11197 | ((PPC_HA (off) != 0) |
| 11198 | + (htab->opd_abi | |
| e7d1c40c | 11199 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11200 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11201 | : 1))); | |
| 176a0d42 AM |
11202 | if (r == NULL) |
| 11203 | return FALSE; | |
| 6f20ed8a | 11204 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11205 | if (bfd_big_endian (info->output_bfd)) |
| 11206 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11207 | r[0].r_addend = dest; |
| 11208 | } | |
| a7f2871e AM |
11209 | if (stub_entry->h != NULL |
| 11210 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11211 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11212 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11213 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11214 | else |
| 794e51c0 | 11215 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11216 | size = p - loc; |
| 11217 | break; | |
| 11218 | ||
| a4b6fadd AM |
11219 | case ppc_stub_save_res: |
| 11220 | return TRUE; | |
| 11221 | ||
| 721956f4 AM |
11222 | default: |
| 11223 | BFD_FAIL (); | |
| b34976b6 | 11224 | return FALSE; |
| 721956f4 AM |
11225 | } |
| 11226 | ||
| 6f20ed8a | 11227 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11228 | |
| e7d1c40c | 11229 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11230 | { |
| 11231 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11232 | size_t len1, len2; |
| 11233 | char *name; | |
| 11234 | const char *const stub_str[] = { "long_branch", | |
| 11235 | "long_branch_r2off", | |
| 11236 | "plt_branch", | |
| 11237 | "plt_branch_r2off", | |
| 794e51c0 | 11238 | "plt_call", |
| ee75fd95 AM |
11239 | "plt_call" }; |
| 11240 | ||
| 11241 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11242 | len2 = strlen (stub_entry->root.string); | |
| 11243 | name = bfd_malloc (len1 + len2 + 2); | |
| 11244 | if (name == NULL) | |
| 11245 | return FALSE; | |
| 11246 | memcpy (name, stub_entry->root.string, 9); | |
| 11247 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11248 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11249 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11250 | if (h == NULL) |
| 11251 | return FALSE; | |
| 11252 | if (h->root.type == bfd_link_hash_new) | |
| 11253 | { | |
| 11254 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11255 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11256 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11257 | h->ref_regular = 1; |
| 11258 | h->def_regular = 1; | |
| 11259 | h->ref_regular_nonweak = 1; | |
| 11260 | h->forced_local = 1; | |
| 11261 | h->non_elf = 0; | |
| 2ec55de3 | 11262 | h->root.linker_def = 1; |
| 97b639ba AM |
11263 | } |
| 11264 | } | |
| 11265 | ||
| b34976b6 | 11266 | return TRUE; |
| 721956f4 AM |
11267 | } |
| 11268 | ||
| 11269 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11270 | we know stub section sizes, and select plt_branch stubs where | |
| 11271 | long_branch stubs won't do. */ | |
| 11272 | ||
| b34976b6 | 11273 | static bfd_boolean |
| 4ce794b7 | 11274 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11275 | { |
| 11276 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11277 | struct bfd_link_info *info; |
| 721956f4 AM |
11278 | struct ppc_link_hash_table *htab; |
| 11279 | bfd_vma off; | |
| 11280 | int size; | |
| 11281 | ||
| 11282 | /* Massage our args to the form they really have. */ | |
| 11283 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11284 | info = in_arg; |
| 11285 | ||
| 11286 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11287 | if (htab == NULL) |
| 11288 | return FALSE; | |
| 721956f4 | 11289 | |
| a4b6fadd AM |
11290 | if (stub_entry->h != NULL |
| 11291 | && stub_entry->h->save_res | |
| 11292 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11293 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11294 | { | |
| 11295 | /* Don't make stubs to out-of-line register save/restore | |
| 11296 | functions. Instead, emit copies of the functions. */ | |
| 11297 | stub_entry->group->needs_save_res = 1; | |
| 11298 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11299 | return TRUE; | |
| 11300 | } | |
| 11301 | ||
| 794e51c0 AM |
11302 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11303 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11304 | { |
| e054468f AM |
11305 | asection *plt; |
| 11306 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11307 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11308 | abort (); |
| 33e44f2e | 11309 | plt = htab->elf.splt; |
| 25f23106 AM |
11310 | if (!htab->elf.dynamic_sections_created |
| 11311 | || stub_entry->h == NULL | |
| 11312 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11313 | plt = htab->elf.iplt; |
| e054468f AM |
11314 | off += (plt->output_offset |
| 11315 | + plt->output_section->vma | |
| 11316 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11317 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11318 | |
| 794e51c0 | 11319 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11320 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11321 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11322 | if (info->emitrelocations) |
| 11323 | { | |
| 6f20ed8a | 11324 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11325 | += ((PPC_HA (off) != 0) |
| 11326 | + (htab->opd_abi | |
| e7d1c40c | 11327 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11328 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11329 | : 1)); | |
| 6f20ed8a | 11330 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11331 | } |
| 721956f4 AM |
11332 | } |
| 11333 | else | |
| 11334 | { | |
| ad8e1ba5 AM |
11335 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11336 | variants. */ | |
| ac2df442 | 11337 | bfd_vma r2off = 0; |
| 6911b7dc | 11338 | bfd_vma local_off = 0; |
| ac2df442 | 11339 | |
| 721956f4 AM |
11340 | off = (stub_entry->target_value |
| 11341 | + stub_entry->target_section->output_offset | |
| 11342 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11343 | off -= (stub_entry->group->stub_sec->size |
| 11344 | + stub_entry->group->stub_sec->output_offset | |
| 11345 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11346 | |
| ad8e1ba5 AM |
11347 | /* Reset the stub type from the plt variant in case we now |
| 11348 | can reach with a shorter stub. */ | |
| 11349 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11350 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11351 | ||
| 11352 | size = 4; | |
| 11353 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11354 | { | |
| 25f53a85 | 11355 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11356 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11357 | { |
| 11358 | htab->stub_error = TRUE; | |
| 11359 | return FALSE; | |
| 11360 | } | |
| a7c49797 | 11361 | size = 8; |
| ac2df442 | 11362 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11363 | size += 4; |
| 11364 | if (PPC_LO (r2off) != 0) | |
| 11365 | size += 4; | |
| ac2df442 | 11366 | off -= size - 4; |
| ad8e1ba5 AM |
11367 | } |
| 11368 | ||
| 6911b7dc AM |
11369 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11370 | ||
| b9e5796b AM |
11371 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11372 | Do the same for -R objects without function descriptors. */ | |
| 11373 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11374 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11375 | && r2off == 0 |
| 11376 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11377 | { |
| 11378 | struct ppc_branch_hash_entry *br_entry; | |
| 11379 | ||
| 11380 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11381 | stub_entry->root.string + 9, | |
| b34976b6 | 11382 | TRUE, FALSE); |
| 721956f4 AM |
11383 | if (br_entry == NULL) |
| 11384 | { | |
| 8de848d8 | 11385 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11386 | stub_entry->root.string); |
| b34976b6 AM |
11387 | htab->stub_error = TRUE; |
| 11388 | return FALSE; | |
| 721956f4 AM |
11389 | } |
| 11390 | ||
| 11391 | if (br_entry->iter != htab->stub_iteration) | |
| 11392 | { | |
| 11393 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11394 | br_entry->offset = htab->brlt->size; |
| 11395 | htab->brlt->size += 8; | |
| 63bc6f6c | 11396 | |
| ee75fd95 | 11397 | if (htab->relbrlt != NULL) |
| eea6121a | 11398 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11399 | else if (info->emitrelocations) |
| 11400 | { | |
| 11401 | htab->brlt->reloc_count += 1; | |
| 11402 | htab->brlt->flags |= SEC_RELOC; | |
| 11403 | } | |
| 721956f4 | 11404 | } |
| ad8e1ba5 AM |
11405 | |
| 11406 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11407 | off = (br_entry->offset |
| 11408 | + htab->brlt->output_offset | |
| 11409 | + htab->brlt->output_section->vma | |
| 11410 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11411 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11412 | |
| 176a0d42 AM |
11413 | if (info->emitrelocations) |
| 11414 | { | |
| 6f20ed8a AM |
11415 | stub_entry->group->stub_sec->reloc_count |
| 11416 | += 1 + (PPC_HA (off) != 0); | |
| 11417 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11418 | } |
| 11419 | ||
| 00f412ee | 11420 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11421 | { |
| 11422 | size = 12; | |
| 176a0d42 | 11423 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11424 | size = 16; |
| 11425 | } | |
| 11426 | else | |
| 11427 | { | |
| 00f412ee | 11428 | size = 16; |
| 176a0d42 | 11429 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11430 | size += 4; |
| 11431 | ||
| 11432 | if (PPC_HA (r2off) != 0) | |
| 11433 | size += 4; | |
| 00f412ee AM |
11434 | if (PPC_LO (r2off) != 0) |
| 11435 | size += 4; | |
| ac2df442 | 11436 | } |
| 721956f4 | 11437 | } |
| 84f5d08e AM |
11438 | else if (info->emitrelocations) |
| 11439 | { | |
| 6f20ed8a AM |
11440 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11441 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11442 | } |
| 721956f4 AM |
11443 | } |
| 11444 | ||
| 6f20ed8a | 11445 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11446 | return TRUE; |
| 721956f4 AM |
11447 | } |
| 11448 | ||
| 11449 | /* Set up various things so that we can make a list of input sections | |
| 11450 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11451 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11452 | |
| 11453 | int | |
| e7d1c40c | 11454 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11455 | { |
| 6f20ed8a | 11456 | unsigned int id; |
| 721956f4 AM |
11457 | bfd_size_type amt; |
| 11458 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11459 | ||
| 4dfe6ac6 NC |
11460 | if (htab == NULL) |
| 11461 | return -1; | |
| 4c52953f | 11462 | |
| 6f20ed8a AM |
11463 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11464 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11465 | htab->sec_info = bfd_zmalloc (amt); | |
| 11466 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11467 | return -1; |
| 11468 | ||
| 3d6f9012 AM |
11469 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11470 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11471 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11472 | |
| 721956f4 AM |
11473 | return 1; |
| 11474 | } | |
| 11475 | ||
| 927be08e AM |
11476 | /* Set up for first pass at multitoc partitioning. */ |
| 11477 | ||
| 11478 | void | |
| 11479 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11480 | { | |
| 11481 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11482 | ||
| 1c865ab2 | 11483 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11484 | htab->toc_bfd = NULL; |
| 11485 | htab->toc_first_sec = NULL; | |
| 11486 | } | |
| 11487 | ||
| e717da7e AM |
11488 | /* The linker repeatedly calls this function for each TOC input section |
| 11489 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11490 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11491 | |
| 927be08e | 11492 | bfd_boolean |
| 4ce794b7 | 11493 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11494 | { |
| 11495 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11496 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11497 | |
| 4dfe6ac6 NC |
11498 | if (htab == NULL) |
| 11499 | return FALSE; | |
| 11500 | ||
| 927be08e | 11501 | if (!htab->second_toc_pass) |
| 4c52953f | 11502 | { |
| 927be08e | 11503 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11504 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11505 | ||
| 11506 | if (new_bfd) | |
| bf102f86 AM |
11507 | { |
| 11508 | htab->toc_bfd = isec->owner; | |
| 11509 | htab->toc_first_sec = isec; | |
| 11510 | } | |
| 927be08e | 11511 | |
| bf102f86 AM |
11512 | addr = isec->output_offset + isec->output_section->vma; |
| 11513 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11514 | limit = 0x80008000; |
| 11515 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11516 | limit = 0x10000; | |
| 11517 | if (off + isec->size > limit) | |
| bf102f86 AM |
11518 | { |
| 11519 | addr = (htab->toc_first_sec->output_offset | |
| 11520 | + htab->toc_first_sec->output_section->vma); | |
| 11521 | htab->toc_curr = addr; | |
| a27e685f | 11522 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11523 | } |
| 99877b66 | 11524 | |
| 927be08e AM |
11525 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11526 | for the input section to be the offset relative to the | |
| 11527 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11528 | offset allows us to move the toc as a whole without | |
| 11529 | recalculating input elf_gp. */ | |
| 11530 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11531 | off += TOC_BASE_OFF; | |
| 11532 | ||
| 11533 | /* Die if someone uses a linker script that doesn't keep input | |
| 11534 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11535 | if (new_bfd |
| 11536 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11537 | && elf_gp (isec->owner) != off) |
| 11538 | return FALSE; | |
| 11539 | ||
| 11540 | elf_gp (isec->owner) = off; | |
| 11541 | return TRUE; | |
| 4c52953f | 11542 | } |
| 927be08e AM |
11543 | |
| 11544 | /* During the second pass toc_first_sec points to the start of | |
| 11545 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11546 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11547 | if (htab->toc_bfd == isec->owner) | |
| 11548 | return TRUE; | |
| 11549 | htab->toc_bfd = isec->owner; | |
| 11550 | ||
| 11551 | if (htab->toc_first_sec == NULL | |
| 11552 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11553 | { | |
| 11554 | htab->toc_curr = elf_gp (isec->owner); | |
| 11555 | htab->toc_first_sec = isec; | |
| 11556 | } | |
| 11557 | addr = (htab->toc_first_sec->output_offset | |
| 11558 | + htab->toc_first_sec->output_section->vma); | |
| 11559 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11560 | elf_gp (isec->owner) = off; | |
| 11561 | ||
| 11562 | return TRUE; | |
| ad8e1ba5 AM |
11563 | } |
| 11564 | ||
| 927be08e AM |
11565 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11566 | symbol H. */ | |
| 11567 | ||
| 11568 | static bfd_boolean | |
| 11569 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11570 | { | |
| 11571 | if (h->root.type == bfd_link_hash_indirect) | |
| 11572 | return TRUE; | |
| 11573 | ||
| 927be08e AM |
11574 | merge_got_entries (&h->got.glist); |
| 11575 | ||
| 11576 | return TRUE; | |
| 11577 | } | |
| 11578 | ||
| 11579 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11580 | symbol H. */ | |
| 11581 | ||
| 11582 | static bfd_boolean | |
| 11583 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11584 | { | |
| 11585 | struct got_entry *gent; | |
| 11586 | ||
| 11587 | if (h->root.type == bfd_link_hash_indirect) | |
| 11588 | return TRUE; | |
| 11589 | ||
| 927be08e AM |
11590 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11591 | if (!gent->is_indirect) | |
| 11592 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11593 | return TRUE; | |
| 11594 | } | |
| 11595 | ||
| 11596 | /* Called on the first multitoc pass after the last call to | |
| 11597 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11598 | entries. */ | |
| 11599 | ||
| 11600 | bfd_boolean | |
| 11601 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11602 | { |
| 11603 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11604 | struct bfd *ibfd, *ibfd2; |
| 11605 | bfd_boolean done_something; | |
| 11606 | ||
| 11607 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11608 | |
| 7865406b AM |
11609 | if (!htab->do_multi_toc) |
| 11610 | return FALSE; | |
| 11611 | ||
| d0fae19d | 11612 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11613 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11614 | ||
| 11615 | /* And tlsld_got. */ | |
| c72f2fb2 | 11616 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11617 | { |
| 11618 | struct got_entry *ent, *ent2; | |
| 11619 | ||
| 11620 | if (!is_ppc64_elf (ibfd)) | |
| 11621 | continue; | |
| 11622 | ||
| 11623 | ent = ppc64_tlsld_got (ibfd); | |
| 11624 | if (!ent->is_indirect | |
| 11625 | && ent->got.offset != (bfd_vma) -1) | |
| 11626 | { | |
| c72f2fb2 | 11627 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11628 | { |
| 11629 | if (!is_ppc64_elf (ibfd2)) | |
| 11630 | continue; | |
| 11631 | ||
| 11632 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11633 | if (!ent2->is_indirect | |
| 11634 | && ent2->got.offset != (bfd_vma) -1 | |
| 11635 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11636 | { | |
| 11637 | ent2->is_indirect = TRUE; | |
| 11638 | ent2->got.ent = ent; | |
| 11639 | } | |
| 11640 | } | |
| 11641 | } | |
| 11642 | } | |
| 11643 | ||
| 11644 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11645 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11646 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11647 | htab->got_reli_size = 0; |
| 11648 | ||
| c72f2fb2 | 11649 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11650 | { |
| 11651 | asection *got, *relgot; | |
| 11652 | ||
| 11653 | if (!is_ppc64_elf (ibfd)) | |
| 11654 | continue; | |
| 11655 | ||
| 11656 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11657 | if (got != NULL) | |
| 11658 | { | |
| 11659 | got->rawsize = got->size; | |
| 11660 | got->size = 0; | |
| 11661 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11662 | relgot->rawsize = relgot->size; | |
| 11663 | relgot->size = 0; | |
| 11664 | } | |
| 11665 | } | |
| 11666 | ||
| 11667 | /* Now reallocate the got, local syms first. We don't need to | |
| 11668 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11669 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11670 | { |
| 11671 | struct got_entry **lgot_ents; | |
| 11672 | struct got_entry **end_lgot_ents; | |
| 11673 | struct plt_entry **local_plt; | |
| 11674 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11675 | unsigned char *lgot_masks; |
| 927be08e AM |
11676 | bfd_size_type locsymcount; |
| 11677 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11678 | asection *s; |
| 927be08e AM |
11679 | |
| 11680 | if (!is_ppc64_elf (ibfd)) | |
| 11681 | continue; | |
| 11682 | ||
| 11683 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11684 | if (!lgot_ents) | |
| 11685 | continue; | |
| 11686 | ||
| 11687 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11688 | locsymcount = symtab_hdr->sh_info; | |
| 11689 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11690 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11691 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11692 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11693 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11694 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11695 | { | |
| 11696 | struct got_entry *ent; | |
| 11697 | ||
| 11698 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11699 | { |
| 19e08130 AM |
11700 | unsigned int ent_size = 8; |
| 11701 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11702 | ||
| d0fae19d AM |
11703 | ent->got.offset = s->size; |
| 11704 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11705 | { |
| 19e08130 AM |
11706 | ent_size *= 2; |
| 11707 | rel_size *= 2; | |
| 11708 | } | |
| 11709 | s->size += ent_size; | |
| 11710 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11711 | { | |
| 33e44f2e | 11712 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11713 | htab->got_reli_size += rel_size; |
| 11714 | } | |
| 0e1862bb | 11715 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11716 | { |
| 11717 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11718 | srel->size += rel_size; | |
| d0fae19d AM |
11719 | } |
| 11720 | } | |
| 927be08e AM |
11721 | } |
| 11722 | } | |
| 11723 | ||
| 11724 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11725 | ||
| c72f2fb2 | 11726 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11727 | { |
| 11728 | struct got_entry *ent; | |
| 11729 | ||
| 11730 | if (!is_ppc64_elf (ibfd)) | |
| 11731 | continue; | |
| 11732 | ||
| 11733 | ent = ppc64_tlsld_got (ibfd); | |
| 11734 | if (!ent->is_indirect | |
| 11735 | && ent->got.offset != (bfd_vma) -1) | |
| 11736 | { | |
| 11737 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11738 | ent->got.offset = s->size; | |
| 11739 | s->size += 16; | |
| 0e1862bb | 11740 | if (bfd_link_pic (info)) |
| 927be08e AM |
11741 | { |
| 11742 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11743 | srel->size += sizeof (Elf64_External_Rela); | |
| 11744 | } | |
| 11745 | } | |
| 11746 | } | |
| 11747 | ||
| 33e44f2e | 11748 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11749 | if (!done_something) |
| c72f2fb2 | 11750 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11751 | { |
| 11752 | asection *got; | |
| 11753 | ||
| 11754 | if (!is_ppc64_elf (ibfd)) | |
| 11755 | continue; | |
| 11756 | ||
| 11757 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11758 | if (got != NULL) | |
| 11759 | { | |
| 11760 | done_something = got->rawsize != got->size; | |
| 11761 | if (done_something) | |
| 11762 | break; | |
| 11763 | } | |
| 11764 | } | |
| 11765 | ||
| 11766 | if (done_something) | |
| e7d1c40c | 11767 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11768 | |
| 11769 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11770 | on input sections. */ | |
| 11771 | htab->toc_bfd = NULL; | |
| 11772 | htab->toc_first_sec = NULL; | |
| 11773 | htab->second_toc_pass = TRUE; | |
| 11774 | return done_something; | |
| 11775 | } | |
| 11776 | ||
| 11777 | /* Called after second pass of multitoc partitioning. */ | |
| 11778 | ||
| 11779 | void | |
| 11780 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11781 | { | |
| 11782 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11783 | ||
| 11784 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11785 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11786 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11787 | } |
| 11788 | ||
| 9b5ecbd0 AM |
11789 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11790 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11791 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11792 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11793 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11794 | for a stub was detected. If called from the top level, a return of | |
| 11795 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11796 | |
| 11797 | static int | |
| 4ce794b7 | 11798 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11799 | { |
| 9b5ecbd0 | 11800 | int ret; |
| 70cc837d AM |
11801 | |
| 11802 | /* Mark this section as checked. */ | |
| 11803 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11804 | |
| 772119ce AM |
11805 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11806 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11807 | return 0; | |
| 11808 | ||
| eea6121a | 11809 | if (isec->size == 0) |
| 082c50f8 AM |
11810 | return 0; |
| 11811 | ||
| 4c52953f AM |
11812 | if (isec->output_section == NULL) |
| 11813 | return 0; | |
| 11814 | ||
| 4c52953f | 11815 | ret = 0; |
| 70cc837d | 11816 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11817 | { |
| 70cc837d AM |
11818 | Elf_Internal_Rela *relstart, *rel; |
| 11819 | Elf_Internal_Sym *local_syms; | |
| 11820 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11821 | |
| 70cc837d AM |
11822 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11823 | info->keep_memory); | |
| 11824 | if (relstart == NULL) | |
| 11825 | return -1; | |
| 90aecf7a | 11826 | |
| 70cc837d AM |
11827 | /* Look for branches to outside of this section. */ |
| 11828 | local_syms = NULL; | |
| 11829 | htab = ppc_hash_table (info); | |
| 11830 | if (htab == NULL) | |
| 11831 | return -1; | |
| 4c52953f | 11832 | |
| 70cc837d | 11833 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11834 | { |
| 70cc837d AM |
11835 | enum elf_ppc64_reloc_type r_type; |
| 11836 | unsigned long r_symndx; | |
| 11837 | struct elf_link_hash_entry *h; | |
| 11838 | struct ppc_link_hash_entry *eh; | |
| 11839 | Elf_Internal_Sym *sym; | |
| 11840 | asection *sym_sec; | |
| 11841 | struct _opd_sec_data *opd; | |
| 11842 | bfd_vma sym_value; | |
| 11843 | bfd_vma dest; | |
| 11844 | ||
| 11845 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11846 | if (r_type != R_PPC64_REL24 | |
| 11847 | && r_type != R_PPC64_REL14 | |
| 11848 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11849 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11850 | continue; | |
| 4c52953f | 11851 | |
| 70cc837d AM |
11852 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11853 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11854 | isec->owner)) | |
| 4c52953f | 11855 | { |
| 70cc837d AM |
11856 | ret = -1; |
| 11857 | break; | |
| 11858 | } | |
| 4c52953f | 11859 | |
| 70cc837d AM |
11860 | /* Calls to dynamic lib functions go through a plt call stub |
| 11861 | that uses r2. */ | |
| 11862 | eh = (struct ppc_link_hash_entry *) h; | |
| 11863 | if (eh != NULL | |
| 11864 | && (eh->elf.plt.plist != NULL | |
| 11865 | || (eh->oh != NULL | |
| 11866 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11867 | { | |
| 11868 | ret = 1; | |
| 11869 | break; | |
| 4c52953f AM |
11870 | } |
| 11871 | ||
| 70cc837d AM |
11872 | if (sym_sec == NULL) |
| 11873 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11874 | continue; |
| 4c52953f | 11875 | |
| 70cc837d AM |
11876 | /* Assume branches to other sections not included in the |
| 11877 | link need stubs too, to cover -R and absolute syms. */ | |
| 11878 | if (sym_sec->output_section == NULL) | |
| 11879 | { | |
| 11880 | ret = 1; | |
| 11881 | break; | |
| 11882 | } | |
| 4c52953f | 11883 | |
| 70cc837d AM |
11884 | if (h == NULL) |
| 11885 | sym_value = sym->st_value; | |
| 11886 | else | |
| 11887 | { | |
| 11888 | if (h->root.type != bfd_link_hash_defined | |
| 11889 | && h->root.type != bfd_link_hash_defweak) | |
| 11890 | abort (); | |
| 11891 | sym_value = h->root.u.def.value; | |
| 11892 | } | |
| 11893 | sym_value += rel->r_addend; | |
| 4c52953f | 11894 | |
| 70cc837d AM |
11895 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11896 | opd = get_opd_info (sym_sec); | |
| 11897 | if (opd != NULL) | |
| 11898 | { | |
| 11899 | if (h == NULL && opd->adjust != NULL) | |
| 11900 | { | |
| 11901 | long adjust; | |
| 4c52953f | 11902 | |
| 92a9c616 | 11903 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11904 | if (adjust == -1) |
| 11905 | /* Assume deleted functions won't ever be called. */ | |
| 11906 | continue; | |
| 11907 | sym_value += adjust; | |
| 11908 | } | |
| 4c52953f | 11909 | |
| aef36ac1 AM |
11910 | dest = opd_entry_value (sym_sec, sym_value, |
| 11911 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11912 | if (dest == (bfd_vma) -1) |
| 11913 | continue; | |
| 11914 | } | |
| 11915 | else | |
| 11916 | dest = (sym_value | |
| 11917 | + sym_sec->output_offset | |
| 11918 | + sym_sec->output_section->vma); | |
| 4c52953f | 11919 | |
| 70cc837d AM |
11920 | /* Ignore branch to self. */ |
| 11921 | if (sym_sec == isec) | |
| 11922 | continue; | |
| 4c52953f | 11923 | |
| 70cc837d AM |
11924 | /* If the called function uses the toc, we need a stub. */ |
| 11925 | if (sym_sec->has_toc_reloc | |
| 11926 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11927 | { |
| 70cc837d | 11928 | ret = 1; |
| 4c52953f AM |
11929 | break; |
| 11930 | } | |
| 70cc837d AM |
11931 | |
| 11932 | /* Assume any branch that needs a long branch stub might in fact | |
| 11933 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11934 | else if (dest - (isec->output_offset | |
| 11935 | + isec->output_section->vma | |
| 6911b7dc AM |
11936 | + rel->r_offset) + (1 << 25) |
| 11937 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11938 | ? h->other | |
| 11939 | : sym->st_other)) | |
| 4c52953f | 11940 | { |
| 70cc837d AM |
11941 | ret = 1; |
| 11942 | break; | |
| 11943 | } | |
| 11944 | ||
| 11945 | /* If calling back to a section in the process of being | |
| 11946 | tested, we can't say for sure that no toc adjusting stubs | |
| 11947 | are needed, so don't return zero. */ | |
| 11948 | else if (sym_sec->call_check_in_progress) | |
| 11949 | ret = 2; | |
| 11950 | ||
| 11951 | /* Branches to another section that itself doesn't have any TOC | |
| 11952 | references are OK. Recursively call ourselves to check. */ | |
| 11953 | else if (!sym_sec->call_check_done) | |
| 11954 | { | |
| 11955 | int recur; | |
| 11956 | ||
| 11957 | /* Mark current section as indeterminate, so that other | |
| 11958 | sections that call back to current won't be marked as | |
| 11959 | known. */ | |
| 11960 | isec->call_check_in_progress = 1; | |
| 11961 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11962 | isec->call_check_in_progress = 0; | |
| 11963 | ||
| 4c52953f AM |
11964 | if (recur != 0) |
| 11965 | { | |
| 70cc837d AM |
11966 | ret = recur; |
| 11967 | if (recur != 2) | |
| 11968 | break; | |
| 4c52953f AM |
11969 | } |
| 11970 | } | |
| 4c52953f | 11971 | } |
| 70cc837d AM |
11972 | |
| 11973 | if (local_syms != NULL | |
| 11974 | && (elf_symtab_hdr (isec->owner).contents | |
| 11975 | != (unsigned char *) local_syms)) | |
| 11976 | free (local_syms); | |
| 11977 | if (elf_section_data (isec)->relocs != relstart) | |
| 11978 | free (relstart); | |
| 9b5ecbd0 AM |
11979 | } |
| 11980 | ||
| 70cc837d AM |
11981 | if ((ret & 1) == 0 |
| 11982 | && isec->map_head.s != NULL | |
| 11983 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11984 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11985 | { | |
| 11986 | if (isec->map_head.s->has_toc_reloc | |
| 11987 | || isec->map_head.s->makes_toc_func_call) | |
| 11988 | ret = 1; | |
| 11989 | else if (!isec->map_head.s->call_check_done) | |
| 11990 | { | |
| 11991 | int recur; | |
| 11992 | isec->call_check_in_progress = 1; | |
| 11993 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11994 | isec->call_check_in_progress = 0; | |
| 11995 | if (recur != 0) | |
| 11996 | ret = recur; | |
| 11997 | } | |
| 11998 | } | |
| 11999 | ||
| 12000 | if (ret == 1) | |
| 12001 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 12002 | |
| 9b5ecbd0 AM |
12003 | return ret; |
| 12004 | } | |
| 12005 | ||
| 721956f4 AM |
12006 | /* The linker repeatedly calls this function for each input section, |
| 12007 | in the order that input sections are linked into output sections. | |
| 12008 | Build lists of input sections to determine groupings between which | |
| 12009 | we may insert linker stubs. */ | |
| 12010 | ||
| 9b5ecbd0 | 12011 | bfd_boolean |
| 4ce794b7 | 12012 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12013 | { |
| 12014 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12015 | ||
| 4dfe6ac6 NC |
12016 | if (htab == NULL) |
| 12017 | return FALSE; | |
| 12018 | ||
| 734b6cf9 | 12019 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12020 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12021 | { |
| 3d6f9012 AM |
12022 | /* This happens to make the list in reverse order, |
| 12023 | which is what we want. */ | |
| 6f20ed8a AM |
12024 | htab->sec_info[isec->id].u.list |
| 12025 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12026 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12027 | } |
| ad8e1ba5 | 12028 | |
| 4c52953f | 12029 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12030 | { |
| 8b974ba3 AM |
12031 | /* Analyse sections that aren't already flagged as needing a |
| 12032 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12033 | .fixup contains branches, but only back to the function that | |
| 12034 | hit an exception. */ | |
| 12035 | if (!(isec->has_toc_reloc | |
| 12036 | || (isec->flags & SEC_CODE) == 0 | |
| 12037 | || strcmp (isec->name, ".fixup") == 0 | |
| 12038 | || isec->call_check_done)) | |
| 12039 | { | |
| 12040 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12041 | return FALSE; |
| 8b974ba3 AM |
12042 | } |
| 12043 | /* Make all sections use the TOC assigned for this object file. | |
| 12044 | This will be wrong for pasted sections; We fix that in | |
| 12045 | check_pasted_section(). */ | |
| 12046 | if (elf_gp (isec->owner) != 0) | |
| 12047 | htab->toc_curr = elf_gp (isec->owner); | |
| 12048 | } | |
| 12049 | ||
| 6f20ed8a | 12050 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12051 | return TRUE; |
| 721956f4 AM |
12052 | } |
| 12053 | ||
| 70cc837d AM |
12054 | /* Check that all .init and .fini sections use the same toc, if they |
| 12055 | have toc relocs. */ | |
| 12056 | ||
| 12057 | static bfd_boolean | |
| 12058 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12059 | { | |
| 12060 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12061 | ||
| 12062 | if (o != NULL) | |
| 12063 | { | |
| 12064 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12065 | bfd_vma toc_off = 0; | |
| 12066 | asection *i; | |
| 12067 | ||
| 12068 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12069 | if (i->has_toc_reloc) | |
| 12070 | { | |
| 12071 | if (toc_off == 0) | |
| 6f20ed8a AM |
12072 | toc_off = htab->sec_info[i->id].toc_off; |
| 12073 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12074 | return FALSE; |
| 12075 | } | |
| 6683a28d AM |
12076 | |
| 12077 | if (toc_off == 0) | |
| 12078 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12079 | if (i->makes_toc_func_call) | |
| 12080 | { | |
| 6f20ed8a | 12081 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12082 | break; |
| 12083 | } | |
| 12084 | ||
| 70cc837d AM |
12085 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12086 | if (toc_off != 0) | |
| 12087 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12088 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12089 | } |
| 12090 | return TRUE; | |
| 12091 | } | |
| 12092 | ||
| 12093 | bfd_boolean | |
| 12094 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12095 | { | |
| 12096 | return (check_pasted_section (info, ".init") | |
| 12097 | & check_pasted_section (info, ".fini")); | |
| 12098 | } | |
| 12099 | ||
| 721956f4 AM |
12100 | /* See whether we can group stub sections together. Grouping stub |
| 12101 | sections may result in fewer stubs. More importantly, we need to | |
| 12102 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12103 | .fini output sections respectively, because glibc splits the | |
| 12104 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12105 | the middle of a function is not a good idea. */ | |
| 12106 | ||
| 6f20ed8a AM |
12107 | static bfd_boolean |
| 12108 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12109 | bfd_size_type stub_group_size, |
| 12110 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12111 | { |
| 6f20ed8a AM |
12112 | struct ppc_link_hash_table *htab; |
| 12113 | asection *osec; | |
| 7c8fe5c4 AM |
12114 | bfd_boolean suppress_size_errors; |
| 12115 | ||
| 6f20ed8a AM |
12116 | htab = ppc_hash_table (info); |
| 12117 | if (htab == NULL) | |
| 12118 | return FALSE; | |
| 12119 | ||
| 7c8fe5c4 | 12120 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12121 | if (stub_group_size == 1) |
| 12122 | { | |
| 12123 | /* Default values. */ | |
| 12124 | if (stubs_always_before_branch) | |
| 09f92717 | 12125 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12126 | else |
| 09f92717 | 12127 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12128 | suppress_size_errors = TRUE; |
| 12129 | } | |
| 12130 | ||
| 6f20ed8a | 12131 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12132 | { |
| 6f20ed8a AM |
12133 | asection *tail; |
| 12134 | ||
| 12135 | if (osec->id >= htab->sec_info_arr_size) | |
| 12136 | continue; | |
| 12137 | ||
| 12138 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12139 | while (tail != NULL) |
| 721956f4 | 12140 | { |
| 734b6cf9 AM |
12141 | asection *curr; |
| 12142 | asection *prev; | |
| 12143 | bfd_size_type total; | |
| 12144 | bfd_boolean big_sec; | |
| 12145 | bfd_vma curr_toc; | |
| 6f20ed8a | 12146 | struct map_stub *group; |
| 09f92717 | 12147 | bfd_size_type group_size; |
| 734b6cf9 AM |
12148 | |
| 12149 | curr = tail; | |
| eea6121a | 12150 | total = tail->size; |
| 09f92717 AM |
12151 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12152 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12153 | ? stub_group_size >> 10 : stub_group_size); | |
| 12154 | ||
| 12155 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12156 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12157 | /* xgettext:c-format */ |
| 4eca0228 AM |
12158 | _bfd_error_handler (_("%B section %A exceeds stub group size"), |
| 12159 | tail->owner, tail); | |
| 6f20ed8a | 12160 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12161 | |
| 6f20ed8a | 12162 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12163 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12164 | < (ppc64_elf_section_data (prev) != NULL |
| 12165 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12166 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12167 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12168 | curr = prev; |
| 12169 | ||
| 12170 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12171 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12172 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12173 | group_size, in which case we may be toast.) We should |
| 12174 | really be keeping track of the total size of stubs added | |
| 12175 | here, as stubs contribute to the final output section | |
| 12176 | size. That's a little tricky, and this way will only | |
| 12177 | break if stubs added make the total size more than 2^25, | |
| 12178 | ie. for the default stub_group_size, if stubs total more | |
| 12179 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12180 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12181 | if (group == NULL) | |
| 12182 | return FALSE; | |
| 12183 | group->link_sec = curr; | |
| 12184 | group->stub_sec = NULL; | |
| a4b6fadd AM |
12185 | group->needs_save_res = 0; |
| 12186 | group->next = htab->group; | |
| 12187 | htab->group = group; | |
| 734b6cf9 | 12188 | do |
| 721956f4 | 12189 | { |
| 6f20ed8a | 12190 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12191 | /* Set up this stub group. */ |
| 6f20ed8a | 12192 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12193 | } |
| 734b6cf9 AM |
12194 | while (tail != curr && (tail = prev) != NULL); |
| 12195 | ||
| 09f92717 | 12196 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12197 | bytes before the stub section can be handled by it too. |
| 12198 | Don't do this if we have a really large section after the | |
| 12199 | stubs, as adding more stubs increases the chance that | |
| 12200 | branches may not reach into the stub section. */ | |
| 12201 | if (!stubs_always_before_branch && !big_sec) | |
| 12202 | { | |
| 12203 | total = 0; | |
| 12204 | while (prev != NULL | |
| 12205 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12206 | < (ppc64_elf_section_data (prev) != NULL |
| 12207 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12208 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12209 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12210 | { |
| 12211 | tail = prev; | |
| 6f20ed8a AM |
12212 | prev = htab->sec_info[tail->id].u.list; |
| 12213 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12214 | } |
| 12215 | } | |
| 12216 | tail = prev; | |
| 721956f4 AM |
12217 | } |
| 12218 | } | |
| 6f20ed8a | 12219 | return TRUE; |
| 721956f4 AM |
12220 | } |
| 12221 | ||
| 58d180e8 AM |
12222 | static const unsigned char glink_eh_frame_cie[] = |
| 12223 | { | |
| 12224 | 0, 0, 0, 16, /* length. */ | |
| 12225 | 0, 0, 0, 0, /* id. */ | |
| 12226 | 1, /* CIE version. */ | |
| 12227 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12228 | 4, /* Code alignment. */ | |
| 12229 | 0x78, /* Data alignment. */ | |
| 12230 | 65, /* RA reg. */ | |
| 12231 | 1, /* Augmentation size. */ | |
| 12232 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
12233 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 12234 | 0, 0, 0, 0 | |
| 58d180e8 AM |
12235 | }; |
| 12236 | ||
| d969d15f AM |
12237 | /* Stripping output sections is normally done before dynamic section |
| 12238 | symbols have been allocated. This function is called later, and | |
| 12239 | handles cases like htab->brlt which is mapped to its own output | |
| 12240 | section. */ | |
| 12241 | ||
| 12242 | static void | |
| 12243 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12244 | { | |
| 12245 | if (isec->size == 0 | |
| 12246 | && isec->output_section->size == 0 | |
| 53d8967a | 12247 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12248 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12249 | isec->output_section) | |
| 12250 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12251 | { | |
| 12252 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12253 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12254 | info->output_bfd->section_count--; | |
| 12255 | } | |
| 12256 | } | |
| 12257 | ||
| 721956f4 AM |
12258 | /* Determine and set the size of the stub section for a final link. |
| 12259 | ||
| 12260 | The basic idea here is to examine all the relocations looking for | |
| 12261 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12262 | instruction. */ | |
| 12263 | ||
| b34976b6 | 12264 | bfd_boolean |
| e7d1c40c | 12265 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12266 | { |
| 12267 | bfd_size_type stub_group_size; | |
| b34976b6 | 12268 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12269 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12270 | ||
| 4dfe6ac6 NC |
12271 | if (htab == NULL) |
| 12272 | return FALSE; | |
| 12273 | ||
| 0e1862bb | 12274 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12275 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12276 | if (!htab->opd_abi) |
| e7d1c40c AM |
12277 | htab->params->plt_thread_safe = 0; |
| 12278 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12279 | { |
| e2458743 | 12280 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12281 | { |
| 12282 | "pthread_create", | |
| 12283 | /* libstdc++ */ | |
| 12284 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12285 | /* librt */ | |
| 12286 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12287 | "mq_notify", "create_timer", | |
| 12288 | /* libanl */ | |
| 12289 | "getaddrinfo_a", | |
| 12290 | /* libgomp */ | |
| 2300b5a1 | 12291 | "GOMP_parallel", |
| 794e51c0 | 12292 | "GOMP_parallel_start", |
| 2300b5a1 | 12293 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12294 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12295 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12296 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12297 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12298 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12299 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12300 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12301 | "GOMP_parallel_sections", |
| 68ffbac6 | 12302 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12303 | /* libgo */ |
| 12304 | "__go_go", | |
| 794e51c0 AM |
12305 | }; |
| 12306 | unsigned i; | |
| 12307 | ||
| a4b6fadd | 12308 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12309 | { |
| 12310 | struct elf_link_hash_entry *h; | |
| 12311 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12312 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12313 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12314 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12315 | break; |
| 12316 | } | |
| 12317 | } | |
| e7d1c40c AM |
12318 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12319 | if (htab->params->group_size < 0) | |
| 12320 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12321 | else |
| e7d1c40c | 12322 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12323 | |
| 6f20ed8a AM |
12324 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12325 | return FALSE; | |
| 721956f4 | 12326 | |
| c9301e31 AM |
12327 | #define STUB_SHRINK_ITER 20 |
| 12328 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12329 | exit on a stub section shrinking. This is to break out of a | |
| 12330 | pathological case where adding stubs on one iteration decreases | |
| 12331 | section gaps (perhaps due to alignment), which then requires | |
| 12332 | fewer or smaller stubs on the next iteration. */ | |
| 12333 | ||
| 721956f4 AM |
12334 | while (1) |
| 12335 | { | |
| 12336 | bfd *input_bfd; | |
| 12337 | unsigned int bfd_indx; | |
| a4b6fadd | 12338 | struct map_stub *group; |
| 721956f4 | 12339 | asection *stub_sec; |
| 721956f4 AM |
12340 | |
| 12341 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12342 | |
| 12343 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12344 | input_bfd != NULL; | |
| c72f2fb2 | 12345 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12346 | { |
| 12347 | Elf_Internal_Shdr *symtab_hdr; | |
| 12348 | asection *section; | |
| 6cdc0ccc | 12349 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12350 | |
| 0c8d6e5c | 12351 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12352 | continue; |
| 12353 | ||
| 721956f4 | 12354 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12355 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12356 | if (symtab_hdr->sh_info == 0) |
| 12357 | continue; | |
| 12358 | ||
| 721956f4 AM |
12359 | /* Walk over each section attached to the input bfd. */ |
| 12360 | for (section = input_bfd->sections; | |
| 12361 | section != NULL; | |
| 12362 | section = section->next) | |
| 12363 | { | |
| 721956f4 | 12364 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12365 | |
| 12366 | /* If there aren't any relocs, then there's nothing more | |
| 12367 | to do. */ | |
| 12368 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12369 | || (section->flags & SEC_ALLOC) == 0 |
| 12370 | || (section->flags & SEC_LOAD) == 0 | |
| 12371 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12372 | || section->reloc_count == 0) |
| 12373 | continue; | |
| 12374 | ||
| 12375 | /* If this section is a link-once section that will be | |
| 12376 | discarded, then don't create any stubs. */ | |
| 12377 | if (section->output_section == NULL | |
| 927be08e | 12378 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12379 | continue; |
| 12380 | ||
| 1e2f5b6e AM |
12381 | /* Get the relocs. */ |
| 12382 | internal_relocs | |
| 4ce794b7 | 12383 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12384 | info->keep_memory); |
| 721956f4 | 12385 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12386 | goto error_ret_free_local; |
| 721956f4 AM |
12387 | |
| 12388 | /* Now examine each relocation. */ | |
| 12389 | irela = internal_relocs; | |
| 12390 | irelaend = irela + section->reloc_count; | |
| 12391 | for (; irela < irelaend; irela++) | |
| 12392 | { | |
| 4ce794b7 AM |
12393 | enum elf_ppc64_reloc_type r_type; |
| 12394 | unsigned int r_indx; | |
| 721956f4 AM |
12395 | enum ppc_stub_type stub_type; |
| 12396 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12397 | asection *sym_sec, *code_sec; |
| e054468f | 12398 | bfd_vma sym_value, code_value; |
| 721956f4 | 12399 | bfd_vma destination; |
| 6911b7dc | 12400 | unsigned long local_off; |
| 8843416a | 12401 | bfd_boolean ok_dest; |
| 721956f4 | 12402 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12403 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12404 | struct elf_link_hash_entry *h; |
| 12405 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12406 | char *stub_name; |
| 12407 | const asection *id_sec; | |
| 74f0fb50 | 12408 | struct _opd_sec_data *opd; |
| e054468f | 12409 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12410 | |
| 12411 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12412 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12413 | ||
| 4ce794b7 | 12414 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12415 | { |
| 12416 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12417 | goto error_ret_free_internal; |
| 721956f4 AM |
12418 | } |
| 12419 | ||
| 12420 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12421 | if (r_type != R_PPC64_REL24 |
| 12422 | && r_type != R_PPC64_REL14 | |
| 12423 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12424 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12425 | continue; |
| 12426 | ||
| 12427 | /* Now determine the call target, its name, value, | |
| 12428 | section. */ | |
| 411e1bfb AM |
12429 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12430 | r_indx, input_bfd)) | |
| 12431 | goto error_ret_free_internal; | |
| 12432 | hash = (struct ppc_link_hash_entry *) h; | |
| 12433 | ||
| 8843416a | 12434 | ok_dest = FALSE; |
| 8387904d | 12435 | fdh = NULL; |
| 7fe2b9a6 | 12436 | sym_value = 0; |
| 411e1bfb | 12437 | if (hash == NULL) |
| 721956f4 | 12438 | { |
| 411e1bfb | 12439 | sym_value = sym->st_value; |
| c27b8c2a AM |
12440 | if (sym_sec != NULL |
| 12441 | && sym_sec->output_section != NULL) | |
| 12442 | ok_dest = TRUE; | |
| 721956f4 | 12443 | } |
| 7fe2b9a6 AM |
12444 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12445 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12446 | { | |
| 12447 | sym_value = hash->elf.root.u.def.value; | |
| 12448 | if (sym_sec->output_section != NULL) | |
| 12449 | ok_dest = TRUE; | |
| 12450 | } | |
| 12451 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12452 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12453 | { |
| 99877b66 | 12454 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12455 | use the func descriptor sym instead if it is |
| 12456 | defined. */ | |
| ceb1f1ef | 12457 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12458 | && hash->oh != NULL) |
| 8387904d | 12459 | { |
| 8c5b4e52 | 12460 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12461 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12462 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12463 | { | |
| 12464 | sym_sec = fdh->elf.root.u.def.section; | |
| 12465 | sym_value = fdh->elf.root.u.def.value; | |
| 12466 | if (sym_sec->output_section != NULL) | |
| 12467 | ok_dest = TRUE; | |
| 12468 | } | |
| 99877b66 AM |
12469 | else |
| 12470 | fdh = NULL; | |
| 8387904d | 12471 | } |
| 7fe2b9a6 AM |
12472 | } |
| 12473 | else | |
| 12474 | { | |
| 12475 | bfd_set_error (bfd_error_bad_value); | |
| 12476 | goto error_ret_free_internal; | |
| 721956f4 AM |
12477 | } |
| 12478 | ||
| 8843416a | 12479 | destination = 0; |
| 6911b7dc | 12480 | local_off = 0; |
| 8843416a AM |
12481 | if (ok_dest) |
| 12482 | { | |
| 12483 | sym_value += irela->r_addend; | |
| 12484 | destination = (sym_value | |
| 12485 | + sym_sec->output_offset | |
| 12486 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12487 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12488 | ? hash->elf.other | |
| 12489 | : sym->st_other); | |
| 8843416a AM |
12490 | } |
| 12491 | ||
| 8387904d | 12492 | code_sec = sym_sec; |
| e054468f | 12493 | code_value = sym_value; |
| 74f0fb50 AM |
12494 | opd = get_opd_info (sym_sec); |
| 12495 | if (opd != NULL) | |
| 8387904d AM |
12496 | { |
| 12497 | bfd_vma dest; | |
| 12498 | ||
| 74f0fb50 | 12499 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12500 | { |
| 51aecdc5 | 12501 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12502 | if (adjust == -1) |
| 12503 | continue; | |
| e054468f | 12504 | code_value += adjust; |
| 8387904d AM |
12505 | sym_value += adjust; |
| 12506 | } | |
| 12507 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12508 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12509 | if (dest != (bfd_vma) -1) |
| 12510 | { | |
| 12511 | destination = dest; | |
| 12512 | if (fdh != NULL) | |
| 12513 | { | |
| 12514 | /* Fixup old ABI sym to point at code | |
| 12515 | entry. */ | |
| 99877b66 | 12516 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12517 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12518 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12519 | } |
| 12520 | } | |
| 12521 | } | |
| 12522 | ||
| 721956f4 | 12523 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12524 | plt_ent = NULL; |
| 721956f4 | 12525 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12526 | &plt_ent, destination, |
| 12527 | local_off); | |
| ad8e1ba5 AM |
12528 | |
| 12529 | if (stub_type != ppc_stub_plt_call) | |
| 12530 | { | |
| 12531 | /* Check whether we need a TOC adjusting stub. | |
| 12532 | Since the linker pastes together pieces from | |
| 12533 | different object files when creating the | |
| 12534 | _init and _fini functions, it may be that a | |
| 12535 | call to what looks like a local sym is in | |
| 12536 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12537 | if (code_sec != NULL |
| 12538 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12539 | && (htab->sec_info[code_sec->id].toc_off |
| 12540 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12541 | && (code_sec->has_toc_reloc |
| 12542 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12543 | stub_type = ppc_stub_long_branch_r2off; |
| 12544 | } | |
| 12545 | ||
| 721956f4 AM |
12546 | if (stub_type == ppc_stub_none) |
| 12547 | continue; | |
| 12548 | ||
| 411e1bfb AM |
12549 | /* __tls_get_addr calls might be eliminated. */ |
| 12550 | if (stub_type != ppc_stub_plt_call | |
| 12551 | && hash != NULL | |
| 8387904d AM |
12552 | && (hash == htab->tls_get_addr |
| 12553 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12554 | && section->has_tls_reloc |
| 12555 | && irela != internal_relocs) | |
| 12556 | { | |
| 12557 | /* Get tls info. */ | |
| f961d9dd | 12558 | unsigned char *tls_mask; |
| 411e1bfb | 12559 | |
| 3a71aa26 | 12560 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12561 | irela - 1, input_bfd)) |
| 12562 | goto error_ret_free_internal; | |
| e7b938ca | 12563 | if (*tls_mask != 0) |
| 411e1bfb AM |
12564 | continue; |
| 12565 | } | |
| 12566 | ||
| 3b421ab3 AM |
12567 | if (stub_type == ppc_stub_plt_call |
| 12568 | && irela + 1 < irelaend | |
| 12569 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12570 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12571 | { | |
| 12572 | if (!tocsave_find (htab, INSERT, | |
| 12573 | &local_syms, irela + 1, input_bfd)) | |
| 12574 | goto error_ret_free_internal; | |
| 12575 | } | |
| 12576 | else if (stub_type == ppc_stub_plt_call) | |
| 12577 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12578 | |
| 721956f4 | 12579 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12580 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12581 | |
| 12582 | /* Get the name of this stub. */ | |
| 12583 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12584 | if (!stub_name) | |
| 12585 | goto error_ret_free_internal; | |
| 12586 | ||
| 12587 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12588 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12589 | if (stub_entry != NULL) |
| 12590 | { | |
| 12591 | /* The proper stub has already been created. */ | |
| 12592 | free (stub_name); | |
| 794e51c0 AM |
12593 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12594 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12595 | continue; |
| 12596 | } | |
| 12597 | ||
| 25f53a85 | 12598 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12599 | if (stub_entry == NULL) |
| 12600 | { | |
| 12601 | free (stub_name); | |
| 6cdc0ccc AM |
12602 | error_ret_free_internal: |
| 12603 | if (elf_section_data (section)->relocs == NULL) | |
| 12604 | free (internal_relocs); | |
| 12605 | error_ret_free_local: | |
| 12606 | if (local_syms != NULL | |
| 12607 | && (symtab_hdr->contents | |
| 12608 | != (unsigned char *) local_syms)) | |
| 12609 | free (local_syms); | |
| b34976b6 | 12610 | return FALSE; |
| 721956f4 AM |
12611 | } |
| 12612 | ||
| ad8e1ba5 | 12613 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12614 | if (stub_type != ppc_stub_plt_call |
| 12615 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12616 | { |
| 12617 | stub_entry->target_value = code_value; | |
| 12618 | stub_entry->target_section = code_sec; | |
| 12619 | } | |
| 12620 | else | |
| 12621 | { | |
| 12622 | stub_entry->target_value = sym_value; | |
| 12623 | stub_entry->target_section = sym_sec; | |
| 12624 | } | |
| 721956f4 | 12625 | stub_entry->h = hash; |
| e054468f | 12626 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12627 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12628 | |
| 12629 | if (stub_entry->h != NULL) | |
| 12630 | htab->stub_globals += 1; | |
| 721956f4 AM |
12631 | } |
| 12632 | ||
| 12633 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12634 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12635 | free (internal_relocs); |
| 721956f4 | 12636 | } |
| 6cdc0ccc AM |
12637 | |
| 12638 | if (local_syms != NULL | |
| 12639 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12640 | { | |
| 12641 | if (!info->keep_memory) | |
| 12642 | free (local_syms); | |
| 12643 | else | |
| 12644 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12645 | } | |
| 721956f4 AM |
12646 | } |
| 12647 | ||
| 5c3dead3 | 12648 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12649 | stub sections. */ |
| e7d1c40c | 12650 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12651 | stub_sec != NULL; |
| 12652 | stub_sec = stub_sec->next) | |
| e717da7e | 12653 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12654 | { |
| ea3d7d1c AM |
12655 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12656 | || stub_sec->rawsize < stub_sec->size) | |
| 12657 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12658 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12659 | stub_sec->size = 0; |
| 12660 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12661 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12662 | } |
| eea6121a AM |
12663 | |
| 12664 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12665 | htab->brlt->reloc_count = 0; |
| 12666 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12667 | if (htab->relbrlt != NULL) |
| eea6121a | 12668 | htab->relbrlt->size = 0; |
| 721956f4 | 12669 | |
| 63bc6f6c | 12670 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12671 | |
| a4b6fadd AM |
12672 | for (group = htab->group; group != NULL; group = group->next) |
| 12673 | if (group->needs_save_res) | |
| 12674 | group->stub_sec->size += htab->sfpr->size; | |
| 12675 | ||
| 176a0d42 AM |
12676 | if (info->emitrelocations |
| 12677 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12678 | { | |
| 12679 | htab->glink->reloc_count = 1; | |
| 12680 | htab->glink->flags |= SEC_RELOC; | |
| 12681 | } | |
| 12682 | ||
| 58d180e8 AM |
12683 | if (htab->glink_eh_frame != NULL |
| 12684 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12685 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12686 | { |
| 4bbe044a | 12687 | size_t size = 0, align; |
| 58d180e8 | 12688 | |
| e7d1c40c | 12689 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12690 | stub_sec != NULL; |
| 12691 | stub_sec = stub_sec->next) | |
| 12692 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12693 | size += 24; |
| 58d180e8 AM |
12694 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12695 | size += 24; | |
| 12696 | if (size != 0) | |
| 12697 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12698 | align = 1; |
| 12699 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12700 | align -= 1; | |
| 12701 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12702 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12703 | htab->glink_eh_frame->size = size; | |
| 12704 | } | |
| 12705 | ||
| e7d1c40c AM |
12706 | if (htab->params->plt_stub_align != 0) |
| 12707 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12708 | stub_sec != NULL; |
| 12709 | stub_sec = stub_sec->next) | |
| 12710 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12711 | stub_sec->size = ((stub_sec->size |
| 12712 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 12713 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 12714 | |
| e7d1c40c | 12715 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12716 | stub_sec != NULL; |
| 12717 | stub_sec = stub_sec->next) | |
| 12718 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| c9301e31 AM |
12719 | && stub_sec->rawsize != stub_sec->size |
| 12720 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 12721 | || stub_sec->rawsize < stub_sec->size)) | |
| 5c3dead3 AM |
12722 | break; |
| 12723 | ||
| 58d180e8 AM |
12724 | if (stub_sec == NULL |
| 12725 | && (htab->glink_eh_frame == NULL | |
| 12726 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12727 | break; |
| 12728 | ||
| 721956f4 | 12729 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12730 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12731 | } |
| 12732 | ||
| da44f4e5 AM |
12733 | if (htab->glink_eh_frame != NULL |
| 12734 | && htab->glink_eh_frame->size != 0) | |
| 12735 | { | |
| 12736 | bfd_vma val; | |
| 12737 | bfd_byte *p, *last_fde; | |
| 12738 | size_t last_fde_len, size, align, pad; | |
| 12739 | asection *stub_sec; | |
| 12740 | ||
| 12741 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12742 | if (p == NULL) | |
| 12743 | return FALSE; | |
| 12744 | htab->glink_eh_frame->contents = p; | |
| 12745 | last_fde = p; | |
| 12746 | ||
| 12747 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12748 | /* CIE length (rewrite in case little-endian). */ | |
| 12749 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12750 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12751 | p += sizeof (glink_eh_frame_cie); | |
| 12752 | ||
| 12753 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12754 | stub_sec != NULL; | |
| 12755 | stub_sec = stub_sec->next) | |
| 12756 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12757 | { | |
| 12758 | last_fde = p; | |
| 12759 | last_fde_len = 20; | |
| 12760 | /* FDE length. */ | |
| 12761 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12762 | p += 4; | |
| 12763 | /* CIE pointer. */ | |
| 12764 | val = p - htab->glink_eh_frame->contents; | |
| 12765 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12766 | p += 4; | |
| 12767 | /* Offset to stub section, written later. */ | |
| 12768 | p += 4; | |
| 12769 | /* stub section size. */ | |
| 12770 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12771 | p += 4; | |
| 12772 | /* Augmentation. */ | |
| 12773 | p += 1; | |
| 12774 | /* Pad. */ | |
| 12775 | p += 7; | |
| 12776 | } | |
| 12777 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12778 | { | |
| 12779 | last_fde = p; | |
| 12780 | last_fde_len = 20; | |
| 12781 | /* FDE length. */ | |
| 12782 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12783 | p += 4; | |
| 12784 | /* CIE pointer. */ | |
| 12785 | val = p - htab->glink_eh_frame->contents; | |
| 12786 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12787 | p += 4; | |
| 12788 | /* Offset to .glink, written later. */ | |
| 12789 | p += 4; | |
| 12790 | /* .glink size. */ | |
| 12791 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12792 | p += 4; | |
| 12793 | /* Augmentation. */ | |
| 12794 | p += 1; | |
| 12795 | ||
| 12796 | *p++ = DW_CFA_advance_loc + 1; | |
| 12797 | *p++ = DW_CFA_register; | |
| 12798 | *p++ = 65; | |
| 9f08fa5c | 12799 | *p++ = htab->opd_abi ? 12 : 0; |
| da44f4e5 AM |
12800 | *p++ = DW_CFA_advance_loc + 4; |
| 12801 | *p++ = DW_CFA_restore_extended; | |
| 12802 | *p++ = 65; | |
| 12803 | } | |
| 12804 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12805 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12806 | zero padding will be seen as a terminator. */ | |
| 12807 | size = p - htab->glink_eh_frame->contents; | |
| 12808 | align = 1; | |
| 12809 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12810 | align -= 1; | |
| 12811 | pad = ((size + align) & ~align) - size; | |
| 12812 | htab->glink_eh_frame->size = size + pad; | |
| 12813 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12814 | } | |
| 12815 | ||
| d969d15f AM |
12816 | maybe_strip_output (info, htab->brlt); |
| 12817 | if (htab->glink_eh_frame != NULL) | |
| 12818 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12819 | |
| b34976b6 | 12820 | return TRUE; |
| 721956f4 AM |
12821 | } |
| 12822 | ||
| 12823 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12824 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12825 | |
| 805fc799 | 12826 | bfd_vma |
| 1c865ab2 | 12827 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12828 | { |
| 805fc799 | 12829 | asection *s; |
| a27e685f | 12830 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12831 | |
| 43417696 AM |
12832 | if (info != NULL) |
| 12833 | { | |
| 12834 | struct elf_link_hash_entry *h; | |
| 12835 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12836 | ||
| 12837 | if (is_elf_hash_table (htab) | |
| 12838 | && htab->hgot != NULL) | |
| 12839 | h = htab->hgot; | |
| 12840 | else | |
| 12841 | { | |
| 12842 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12843 | if (is_elf_hash_table (htab)) | |
| 12844 | htab->hgot = h; | |
| 12845 | } | |
| 12846 | if (h != NULL | |
| 12847 | && h->root.type == bfd_link_hash_defined | |
| 12848 | && !h->root.linker_def | |
| 12849 | && (!is_elf_hash_table (htab) | |
| 12850 | || h->def_regular)) | |
| 12851 | { | |
| 12852 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12853 | + h->root.u.def.section->output_offset | |
| 12854 | + h->root.u.def.section->output_section->vma); | |
| 12855 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12856 | return TOCstart; | |
| 12857 | } | |
| 12858 | } | |
| 12859 | ||
| 805fc799 AM |
12860 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12861 | order. The TOC starts where the first of these sections starts. */ | |
| 12862 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12863 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12864 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12865 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12866 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12867 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12868 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12869 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12870 | { |
| 12871 | /* This may happen for | |
| 12872 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12873 | .toc directive | |
| 12874 | o bad linker script | |
| 12875 | o --gc-sections and empty TOC sections | |
| 12876 | ||
| 12877 | FIXME: Warn user? */ | |
| 12878 | ||
| 12879 | /* Look for a likely section. We probably won't even be | |
| 12880 | using TOCstart. */ | |
| 12881 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12882 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12883 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12884 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12885 | break; | |
| 721956f4 | 12886 | if (s == NULL) |
| 805fc799 | 12887 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12888 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12889 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12890 | break; | |
| 721956f4 | 12891 | if (s == NULL) |
| 805fc799 | 12892 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12893 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12894 | == SEC_ALLOC) | |
| 805fc799 | 12895 | break; |
| 721956f4 | 12896 | if (s == NULL) |
| 805fc799 | 12897 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12898 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12899 | break; |
| 12900 | } | |
| 721956f4 | 12901 | |
| 805fc799 AM |
12902 | TOCstart = 0; |
| 12903 | if (s != NULL) | |
| 12904 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12905 | |
| a27e685f AM |
12906 | /* Force alignment. */ |
| 12907 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12908 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12909 | _bfd_set_gp_value (obfd, TOCstart); |
| 12910 | ||
| 810d4e75 | 12911 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12912 | { |
| 12913 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12914 | ||
| 810d4e75 AM |
12915 | if (htab != NULL) |
| 12916 | { | |
| 12917 | if (htab->elf.hgot != NULL) | |
| 12918 | { | |
| a27e685f | 12919 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12920 | htab->elf.hgot->root.u.def.section = s; |
| 12921 | } | |
| 12922 | } | |
| 12923 | else | |
| 1c865ab2 | 12924 | { |
| 810d4e75 AM |
12925 | struct bfd_link_hash_entry *bh = NULL; |
| 12926 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12927 | s, TOC_BASE_OFF - adjust, |
| 12928 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12929 | } |
| 12930 | } | |
| 805fc799 | 12931 | return TOCstart; |
| 721956f4 AM |
12932 | } |
| 12933 | ||
| a345bc8d AM |
12934 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12935 | write out any global entry stubs. */ | |
| 12936 | ||
| 12937 | static bfd_boolean | |
| 12938 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12939 | { | |
| 12940 | struct bfd_link_info *info; | |
| 12941 | struct ppc_link_hash_table *htab; | |
| 12942 | struct plt_entry *pent; | |
| 12943 | asection *s; | |
| 12944 | ||
| 12945 | if (h->root.type == bfd_link_hash_indirect) | |
| 12946 | return TRUE; | |
| 12947 | ||
| 12948 | if (!h->pointer_equality_needed) | |
| 12949 | return TRUE; | |
| 12950 | ||
| 12951 | if (h->def_regular) | |
| 12952 | return TRUE; | |
| 12953 | ||
| 12954 | info = inf; | |
| 12955 | htab = ppc_hash_table (info); | |
| 12956 | if (htab == NULL) | |
| 12957 | return FALSE; | |
| 12958 | ||
| 12959 | s = htab->glink; | |
| 12960 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12961 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12962 | && pent->addend == 0) | |
| 12963 | { | |
| 12964 | bfd_byte *p; | |
| 12965 | asection *plt; | |
| 12966 | bfd_vma off; | |
| 12967 | ||
| a345bc8d | 12968 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12969 | plt = htab->elf.splt; |
| a345bc8d AM |
12970 | if (!htab->elf.dynamic_sections_created |
| 12971 | || h->dynindx == -1) | |
| 33e44f2e | 12972 | plt = htab->elf.iplt; |
| a345bc8d AM |
12973 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12974 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12975 | ||
| 12976 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12977 | { | |
| 12978 | info->callbacks->einfo | |
| 12979 | (_("%P: linkage table error against `%T'\n"), | |
| 12980 | h->root.root.string); | |
| 12981 | bfd_set_error (bfd_error_bad_value); | |
| 12982 | htab->stub_error = TRUE; | |
| 12983 | } | |
| 12984 | ||
| 7341d5e2 AM |
12985 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12986 | if (htab->params->emit_stub_syms) | |
| 12987 | { | |
| 12988 | size_t len = strlen (h->root.root.string); | |
| 12989 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12990 | ||
| 12991 | if (name == NULL) | |
| 12992 | return FALSE; | |
| 12993 | ||
| 12994 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12995 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12996 | if (h == NULL) | |
| 12997 | return FALSE; | |
| 12998 | if (h->root.type == bfd_link_hash_new) | |
| 12999 | { | |
| 13000 | h->root.type = bfd_link_hash_defined; | |
| 13001 | h->root.u.def.section = s; | |
| 13002 | h->root.u.def.value = p - s->contents; | |
| 13003 | h->ref_regular = 1; | |
| 13004 | h->def_regular = 1; | |
| 13005 | h->ref_regular_nonweak = 1; | |
| 13006 | h->forced_local = 1; | |
| 13007 | h->non_elf = 0; | |
| 2ec55de3 | 13008 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13009 | } |
| 13010 | } | |
| 13011 | ||
| a345bc8d AM |
13012 | if (PPC_HA (off) != 0) |
| 13013 | { | |
| 13014 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13015 | p += 4; | |
| 13016 | } | |
| 13017 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13018 | p += 4; | |
| 13019 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13020 | p += 4; | |
| 13021 | bfd_put_32 (s->owner, BCTR, p); | |
| 13022 | break; | |
| 13023 | } | |
| 13024 | return TRUE; | |
| 13025 | } | |
| 13026 | ||
| 721956f4 AM |
13027 | /* Build all the stubs associated with the current output file. |
| 13028 | The stubs are kept in a hash table attached to the main linker | |
| 13029 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13030 | ||
| b34976b6 | 13031 | bfd_boolean |
| e7d1c40c | 13032 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13033 | char **stats) |
| 5d1634d7 AM |
13034 | { |
| 13035 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13036 | struct map_stub *group; |
| 721956f4 | 13037 | asection *stub_sec; |
| 5d1634d7 | 13038 | bfd_byte *p; |
| e717da7e | 13039 | int stub_sec_count = 0; |
| 5d1634d7 | 13040 | |
| 4dfe6ac6 NC |
13041 | if (htab == NULL) |
| 13042 | return FALSE; | |
| 13043 | ||
| eea6121a | 13044 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 13045 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13046 | stub_sec != NULL; |
| 13047 | stub_sec = stub_sec->next) | |
| eea6121a AM |
13048 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 13049 | && stub_sec->size != 0) | |
| e717da7e | 13050 | { |
| e7d1c40c | 13051 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13052 | if (stub_sec->contents == NULL) |
| 13053 | return FALSE; | |
| eea6121a | 13054 | stub_sec->size = 0; |
| e717da7e | 13055 | } |
| 5d1634d7 | 13056 | |
| 23eb7e01 | 13057 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13058 | { |
| 9f951329 | 13059 | unsigned int indx; |
| ad8e1ba5 | 13060 | bfd_vma plt0; |
| 9f951329 | 13061 | |
| 721956f4 | 13062 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13063 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13064 | { |
| 13065 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13066 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13067 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13068 | if (h == NULL) |
| 13069 | return FALSE; | |
| 13070 | if (h->root.type == bfd_link_hash_new) | |
| 13071 | { | |
| 13072 | h->root.type = bfd_link_hash_defined; | |
| 13073 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13074 | h->root.u.def.value = 8; |
| f5385ebf AM |
13075 | h->ref_regular = 1; |
| 13076 | h->def_regular = 1; | |
| 13077 | h->ref_regular_nonweak = 1; | |
| 13078 | h->forced_local = 1; | |
| 13079 | h->non_elf = 0; | |
| 2ec55de3 | 13080 | h->root.linker_def = 1; |
| 97b639ba AM |
13081 | } |
| 13082 | } | |
| 33e44f2e AM |
13083 | plt0 = (htab->elf.splt->output_section->vma |
| 13084 | + htab->elf.splt->output_offset | |
| 13085 | - 16); | |
| 176a0d42 AM |
13086 | if (info->emitrelocations) |
| 13087 | { | |
| 13088 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13089 | if (r == NULL) | |
| 13090 | return FALSE; | |
| 13091 | r->r_offset = (htab->glink->output_offset | |
| 13092 | + htab->glink->output_section->vma); | |
| 13093 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13094 | r->r_addend = plt0; | |
| 13095 | } | |
| 4ce794b7 | 13096 | p = htab->glink->contents; |
| 176a0d42 | 13097 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13098 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13099 | p += 8; | |
| b9e5796b AM |
13100 | if (htab->opd_abi) |
| 13101 | { | |
| 13102 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13103 | p += 4; | |
| 13104 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13105 | p += 4; | |
| 13106 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13107 | p += 4; | |
| 13108 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13109 | p += 4; | |
| 13110 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13111 | p += 4; | |
| 13112 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13113 | p += 4; | |
| 13114 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13115 | p += 4; | |
| 13116 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13117 | p += 4; | |
| 13118 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13119 | p += 4; | |
| 13120 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13121 | p += 4; | |
| 13122 | } | |
| 13123 | else | |
| 13124 | { | |
| 13125 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13126 | p += 4; | |
| 13127 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13128 | p += 4; | |
| 13129 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13130 | p += 4; | |
| 13131 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13132 | p += 4; | |
| 13133 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13134 | p += 4; | |
| 13135 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13136 | p += 4; | |
| 13137 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13138 | p += 4; | |
| 13139 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13140 | p += 4; | |
| 13141 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13142 | p += 4; | |
| 13143 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13144 | p += 4; | |
| 13145 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13146 | p += 4; | |
| 13147 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13148 | p += 4; | |
| 13149 | } | |
| 4ce794b7 | 13150 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 13151 | p += 4; |
| ee4bf8d2 AM |
13152 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 13153 | { | |
| 13154 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 13155 | p += 4; | |
| 13156 | } | |
| ad8e1ba5 | 13157 | |
| 9f951329 AM |
13158 | /* Build the .glink lazy link call stubs. */ |
| 13159 | indx = 0; | |
| a345bc8d | 13160 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 13161 | { |
| b9e5796b | 13162 | if (htab->opd_abi) |
| 9f951329 | 13163 | { |
| b9e5796b AM |
13164 | if (indx < 0x8000) |
| 13165 | { | |
| 13166 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13167 | p += 4; | |
| 13168 | } | |
| 13169 | else | |
| 13170 | { | |
| 13171 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13172 | p += 4; | |
| 13173 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13174 | p); | |
| 13175 | p += 4; | |
| 13176 | } | |
| 9f951329 | 13177 | } |
| 4ce794b7 | 13178 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13179 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13180 | indx++; |
| 9f951329 AM |
13181 | p += 4; |
| 13182 | } | |
| a345bc8d AM |
13183 | |
| 13184 | /* Build .glink global entry stubs. */ | |
| 13185 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13186 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13187 | } |
| 5d1634d7 | 13188 | |
| 7341d5e2 | 13189 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13190 | { |
| 4ce794b7 | 13191 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13192 | htab->brlt->size); |
| 4ce794b7 | 13193 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13194 | return FALSE; |
| 721956f4 | 13195 | } |
| ee75fd95 | 13196 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13197 | { |
| 13198 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13199 | htab->relbrlt->size); |
| 63bc6f6c AM |
13200 | if (htab->relbrlt->contents == NULL) |
| 13201 | return FALSE; | |
| 13202 | } | |
| 5d1634d7 | 13203 | |
| 721956f4 AM |
13204 | /* Build the stubs as directed by the stub hash table. */ |
| 13205 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13206 | |
| a4b6fadd AM |
13207 | for (group = htab->group; group != NULL; group = group->next) |
| 13208 | if (group->needs_save_res) | |
| 13209 | { | |
| 13210 | stub_sec = group->stub_sec; | |
| 13211 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13212 | htab->sfpr->size); | |
| 13213 | if (htab->params->emit_stub_syms) | |
| 13214 | { | |
| 13215 | unsigned int i; | |
| 13216 | ||
| 13217 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13218 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13219 | return FALSE; | |
| 13220 | } | |
| 13221 | stub_sec->size += htab->sfpr->size; | |
| 13222 | } | |
| 13223 | ||
| aa8a7074 AM |
13224 | if (htab->relbrlt != NULL) |
| 13225 | htab->relbrlt->reloc_count = 0; | |
| 13226 | ||
| e7d1c40c AM |
13227 | if (htab->params->plt_stub_align != 0) |
| 13228 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
13229 | stub_sec != NULL; |
| 13230 | stub_sec = stub_sec->next) | |
| 13231 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
13232 | stub_sec->size = ((stub_sec->size |
| 13233 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13234 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13235 | |
| e7d1c40c | 13236 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13237 | stub_sec != NULL; |
| 13238 | stub_sec = stub_sec->next) | |
| e717da7e AM |
13239 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 13240 | { | |
| 13241 | stub_sec_count += 1; | |
| c9301e31 AM |
13242 | if (stub_sec->rawsize != stub_sec->size |
| 13243 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13244 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13245 | break; |
| 13246 | } | |
| 5d1634d7 | 13247 | |
| da44f4e5 AM |
13248 | /* Note that the glink_eh_frame check here is not only testing that |
| 13249 | the generated size matched the calculated size but also that | |
| 13250 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 13251 | if (stub_sec != NULL |
| 58d180e8 AM |
13252 | || (htab->glink_eh_frame != NULL |
| 13253 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13254 | { |
| b34976b6 | 13255 | htab->stub_error = TRUE; |
| 8de848d8 | 13256 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13257 | } |
| 721956f4 | 13258 | |
| d2a300cf AM |
13259 | if (htab->stub_error) |
| 13260 | return FALSE; | |
| 13261 | ||
| 13262 | if (stats != NULL) | |
| 13263 | { | |
| 13264 | *stats = bfd_malloc (500); | |
| 13265 | if (*stats == NULL) | |
| 13266 | return FALSE; | |
| 13267 | ||
| ee75fd95 | 13268 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13269 | " branch %lu\n" |
| 13270 | " toc adjust %lu\n" | |
| 13271 | " long branch %lu\n" | |
| 13272 | " long toc adj %lu\n" | |
| 794e51c0 | 13273 | " plt call %lu\n" |
| 7341d5e2 AM |
13274 | " plt call toc %lu\n" |
| 13275 | " global entry %lu"), | |
| e717da7e | 13276 | stub_sec_count, |
| ee75fd95 | 13277 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13278 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13279 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13280 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13281 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13282 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13283 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13284 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13285 | } |
| 13286 | return TRUE; | |
| 5bd4f169 AM |
13287 | } |
| 13288 | ||
| 60124e18 AM |
13289 | /* What to do when ld finds relocations against symbols defined in |
| 13290 | discarded sections. */ | |
| 13291 | ||
| 13292 | static unsigned int | |
| 13293 | ppc64_elf_action_discarded (asection *sec) | |
| 13294 | { | |
| 13295 | if (strcmp (".opd", sec->name) == 0) | |
| 13296 | return 0; | |
| 13297 | ||
| 13298 | if (strcmp (".toc", sec->name) == 0) | |
| 13299 | return 0; | |
| 13300 | ||
| bce50a28 JJ |
13301 | if (strcmp (".toc1", sec->name) == 0) |
| 13302 | return 0; | |
| 13303 | ||
| 60124e18 AM |
13304 | return _bfd_elf_default_action_discarded (sec); |
| 13305 | } | |
| 13306 | ||
| 5bd4f169 AM |
13307 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13308 | to handle the relocations for a section. | |
| 13309 | ||
| 13310 | The relocs are always passed as Rela structures; if the section | |
| 13311 | actually uses Rel structures, the r_addend field will always be | |
| 13312 | zero. | |
| 13313 | ||
| 13314 | This function is responsible for adjust the section contents as | |
| 13315 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13316 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13317 | necessary. |
| 13318 | ||
| 13319 | This function does not have to worry about setting the reloc | |
| 13320 | address or the reloc symbol index. | |
| 13321 | ||
| 13322 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13323 | ||
| 13324 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13325 | corresponding to the st_shndx field of each local symbol. | |
| 13326 | ||
| 13327 | The global hash table entry for the global symbols can be found | |
| 13328 | via elf_sym_hashes (input_bfd). | |
| 13329 | ||
| 1049f94e | 13330 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13331 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13332 | going to be the section symbol corresponding to the output | |
| 13333 | section, which means that the addend must be adjusted | |
| 13334 | accordingly. */ | |
| 13335 | ||
| b34976b6 | 13336 | static bfd_boolean |
| 4ce794b7 AM |
13337 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13338 | struct bfd_link_info *info, | |
| 13339 | bfd *input_bfd, | |
| 13340 | asection *input_section, | |
| 13341 | bfd_byte *contents, | |
| 13342 | Elf_Internal_Rela *relocs, | |
| 13343 | Elf_Internal_Sym *local_syms, | |
| 13344 | asection **local_sections) | |
| 5bd4f169 | 13345 | { |
| 65f38f15 | 13346 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13347 | Elf_Internal_Shdr *symtab_hdr; |
| 13348 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13349 | Elf_Internal_Rela *rel; |
| c316a17c | 13350 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13351 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13352 | Elf_Internal_Rela outrel; |
| 13353 | bfd_byte *loc; | |
| 411e1bfb | 13354 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13355 | bfd_vma TOCstart; |
| b34976b6 AM |
13356 | bfd_boolean ret = TRUE; |
| 13357 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13358 | /* Assume 'at' branch hints. */ |
| 13359 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13360 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13361 | |
| 65f38f15 | 13362 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13363 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13364 | ppc_howto_init (); |
| 13365 | ||
| 65f38f15 | 13366 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13367 | if (htab == NULL) |
| 13368 | return FALSE; | |
| ee75fd95 AM |
13369 | |
| 13370 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13371 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13372 | return TRUE; |
| 13373 | ||
| 0c8d6e5c | 13374 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13375 | |
| 411e1bfb | 13376 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13377 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13378 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13379 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13380 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13381 | |
| c316a17c | 13382 | rel = wrel = relocs; |
| 5bd4f169 | 13383 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13384 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13385 | { |
| 04c9666a | 13386 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13387 | bfd_vma addend; |
| 5bd4f169 AM |
13388 | bfd_reloc_status_type r; |
| 13389 | Elf_Internal_Sym *sym; | |
| 13390 | asection *sec; | |
| 039b3fef AM |
13391 | struct elf_link_hash_entry *h_elf; |
| 13392 | struct ppc_link_hash_entry *h; | |
| 13393 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13394 | const char *sym_name; |
| 0d4792f7 | 13395 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13396 | bfd_vma toc_addend; |
| f961d9dd AM |
13397 | unsigned char tls_mask, tls_gd, tls_type; |
| 13398 | unsigned char sym_type; | |
| 5bd4f169 | 13399 | bfd_vma relocation; |
| b34976b6 AM |
13400 | bfd_boolean unresolved_reloc; |
| 13401 | bfd_boolean warned; | |
| bc30df16 | 13402 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13403 | unsigned int insn; |
| e11840f9 | 13404 | unsigned int mask; |
| 721956f4 AM |
13405 | struct ppc_stub_hash_entry *stub_entry; |
| 13406 | bfd_vma max_br_offset; | |
| 13407 | bfd_vma from; | |
| c316a17c | 13408 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13409 | reloc_howto_type *howto; |
| 13410 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13411 | |
| c316a17c AM |
13412 | again: |
| 13413 | orig_rel = *rel; | |
| 13414 | ||
| 4ce794b7 | 13415 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13416 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13417 | |
| 13418 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13419 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13420 | proper TOC base to use. */ | |
| 13421 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13422 | && wrel != relocs |
| 13423 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13424 | && is_opd) |
| c316a17c | 13425 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13426 | |
| 4ce794b7 AM |
13427 | sym = NULL; |
| 13428 | sec = NULL; | |
| 039b3fef | 13429 | h_elf = NULL; |
| 4ce794b7 | 13430 | sym_name = NULL; |
| b34976b6 AM |
13431 | unresolved_reloc = FALSE; |
| 13432 | warned = FALSE; | |
| 65f38f15 | 13433 | |
| 0b13192e | 13434 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13435 | { |
| 13436 | /* It's a local symbol. */ | |
| 74f0fb50 | 13437 | struct _opd_sec_data *opd; |
| 4025353c | 13438 | |
| 5bd4f169 AM |
13439 | sym = local_syms + r_symndx; |
| 13440 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13441 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13442 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13443 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13444 | opd = get_opd_info (sec); |
| 13445 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13446 | { |
| 51aecdc5 AM |
13447 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13448 | + rel->r_addend)]; | |
| 4025353c AM |
13449 | if (adjust == -1) |
| 13450 | relocation = 0; | |
| 13451 | else | |
| 4cc603a5 AM |
13452 | { |
| 13453 | /* If this is a relocation against the opd section sym | |
| 13454 | and we have edited .opd, adjust the reloc addend so | |
| 13455 | that ld -r and ld --emit-relocs output is correct. | |
| 13456 | If it is a reloc against some other .opd symbol, | |
| 13457 | then the symbol value will be adjusted later. */ | |
| 13458 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13459 | rel->r_addend += adjust; | |
| 13460 | else | |
| 13461 | relocation += adjust; | |
| 13462 | } | |
| 1e2f5b6e | 13463 | } |
| 5bd4f169 AM |
13464 | } |
| 13465 | else | |
| 13466 | { | |
| 62d887d4 L |
13467 | bfd_boolean ignored; |
| 13468 | ||
| b2a8e766 AM |
13469 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13470 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13471 | h_elf, sec, relocation, |
| 62d887d4 | 13472 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13473 | sym_name = h_elf->root.root.string; |
| 13474 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13475 | if (sec != NULL |
| 13476 | && sec->owner == output_bfd | |
| 13477 | && strcmp (sec->name, ".opd") == 0) | |
| 13478 | { | |
| 13479 | /* This is a symbol defined in a linker script. All | |
| 13480 | such are defined in output sections, even those | |
| 13481 | defined by simple assignment from a symbol defined in | |
| 13482 | an input section. Transfer the symbol to an | |
| 13483 | appropriate input .opd section, so that a branch to | |
| 13484 | this symbol will be mapped to the location specified | |
| 13485 | by the opd entry. */ | |
| 13486 | struct bfd_link_order *lo; | |
| 13487 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13488 | if (lo->type == bfd_indirect_link_order) | |
| 13489 | { | |
| 13490 | asection *isec = lo->u.indirect.section; | |
| 13491 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13492 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13493 | + isec->size)) | |
| 13494 | { | |
| 13495 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13496 | h_elf->root.u.def.section = isec; | |
| 13497 | sec = isec; | |
| 13498 | break; | |
| 13499 | } | |
| 13500 | } | |
| 13501 | } | |
| 5bd4f169 | 13502 | } |
| 039b3fef | 13503 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13504 | |
| dbaa2011 | 13505 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13506 | { |
| 13507 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13508 | input_bfd, input_section, | |
| 13509 | contents + rel->r_offset); | |
| 13510 | wrel->r_offset = rel->r_offset; | |
| 13511 | wrel->r_info = 0; | |
| 13512 | wrel->r_addend = 0; | |
| 13513 | ||
| 13514 | /* For ld -r, remove relocations in debug sections against | |
| 13515 | sections defined in discarded sections. Not done for | |
| 13516 | non-debug to preserve relocs in .eh_frame which the | |
| 13517 | eh_frame editing code expects to be present. */ | |
| 13518 | if (bfd_link_relocatable (info) | |
| 13519 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13520 | wrel--; | |
| 13521 | ||
| 13522 | continue; | |
| 13523 | } | |
| ab96bf03 | 13524 | |
| 0e1862bb | 13525 | if (bfd_link_relocatable (info)) |
| c316a17c | 13526 | goto copy_reloc; |
| ab96bf03 | 13527 | |
| f40da81b AM |
13528 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13529 | { | |
| 6f20ed8a | 13530 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13531 | sec = bfd_abs_section_ptr; |
| 13532 | unresolved_reloc = FALSE; | |
| 13533 | } | |
| 13534 | ||
| 951fd09b AM |
13535 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13536 | based on information we collected in tls_optimize. We edit | |
| 13537 | RELOCS so that --emit-relocs will output something sensible | |
| 13538 | for the final instruction stream. */ | |
| 13539 | tls_mask = 0; | |
| 13540 | tls_gd = 0; | |
| 0d4792f7 | 13541 | toc_symndx = 0; |
| 727fc41e AM |
13542 | if (h != NULL) |
| 13543 | tls_mask = h->tls_mask; | |
| 13544 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13545 | { |
| e054468f AM |
13546 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13547 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13548 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13549 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13550 | tls_mask = lgot_masks[r_symndx]; |
| 13551 | } | |
| 13552 | if (tls_mask == 0 | |
| 13553 | && (r_type == R_PPC64_TLS | |
| 13554 | || r_type == R_PPC64_TLSGD | |
| 13555 | || r_type == R_PPC64_TLSLD)) | |
| 13556 | { | |
| 13557 | /* Check for toc tls entries. */ | |
| f961d9dd | 13558 | unsigned char *toc_tls; |
| 0d4792f7 | 13559 | |
| 727fc41e AM |
13560 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13561 | &local_syms, rel, input_bfd)) | |
| 13562 | return FALSE; | |
| 0d4792f7 | 13563 | |
| 727fc41e AM |
13564 | if (toc_tls) |
| 13565 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13566 | } |
| 13567 | ||
| 13568 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13569 | relocs are used with non-tls syms. */ | |
| cf35638d | 13570 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13571 | && r_type != R_PPC64_NONE |
| 13572 | && (h == NULL | |
| 039b3fef AM |
13573 | || h->elf.root.type == bfd_link_hash_defined |
| 13574 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13575 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13576 | != (sym_type == STT_TLS | |
| 13577 | || (sym_type == STT_SECTION | |
| 13578 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13579 | { |
| 727fc41e AM |
13580 | if (tls_mask != 0 |
| 13581 | && (r_type == R_PPC64_TLS | |
| 13582 | || r_type == R_PPC64_TLSGD | |
| 13583 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13584 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13585 | ; | |
| 13586 | else | |
| 25f53a85 | 13587 | info->callbacks->einfo |
| 1d483afe | 13588 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13589 | /* xgettext:c-format */ |
| bc30df16 | 13590 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13591 | /* xgettext:c-format */ |
| bc30df16 | 13592 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13593 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13594 | ppc64_elf_howto_table[r_type]->name, |
| 13595 | sym_name); | |
| 411e1bfb AM |
13596 | } |
| 13597 | ||
| 13598 | /* Ensure reloc mapping code below stays sane. */ | |
| 13599 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13600 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13601 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13602 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13603 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13604 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13605 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13606 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13607 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13608 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13609 | abort (); | |
| 0d4792f7 | 13610 | |
| 411e1bfb AM |
13611 | switch (r_type) |
| 13612 | { | |
| 13613 | default: | |
| 411e1bfb AM |
13614 | break; |
| 13615 | ||
| ba761f19 | 13616 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13617 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13618 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13619 | abort (); | |
| 13620 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13621 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13622 | r_type = R_PPC64_TOC16_LO; |
| 13623 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13624 | break; | |
| 13625 | ||
| 411e1bfb AM |
13626 | case R_PPC64_TOC16: |
| 13627 | case R_PPC64_TOC16_LO: | |
| 13628 | case R_PPC64_TOC16_DS: | |
| 13629 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13630 | { |
| 13631 | /* Check for toc tls entries. */ | |
| f961d9dd | 13632 | unsigned char *toc_tls; |
| 951fd09b | 13633 | int retval; |
| 411e1bfb | 13634 | |
| 3a71aa26 AM |
13635 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13636 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13637 | if (retval == 0) |
| 411e1bfb AM |
13638 | return FALSE; |
| 13639 | ||
| 13640 | if (toc_tls) | |
| 13641 | { | |
| 951fd09b | 13642 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13643 | if (r_type == R_PPC64_TOC16_DS |
| 13644 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13645 | { |
| 13646 | if (tls_mask != 0 | |
| 13647 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13648 | goto toctprel; | |
| 13649 | } | |
| 411e1bfb | 13650 | else |
| 951fd09b AM |
13651 | { |
| 13652 | /* If we found a GD reloc pair, then we might be | |
| 13653 | doing a GD->IE transition. */ | |
| 13654 | if (retval == 2) | |
| 13655 | { | |
| 13656 | tls_gd = TLS_TPRELGD; | |
| 13657 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13658 | goto tls_ldgd_opt; |
| 951fd09b AM |
13659 | } |
| 13660 | else if (retval == 3) | |
| 13661 | { | |
| 13662 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13663 | goto tls_ldgd_opt; |
| 951fd09b AM |
13664 | } |
| 13665 | } | |
| 411e1bfb AM |
13666 | } |
| 13667 | } | |
| 13668 | break; | |
| 13669 | ||
| 9d6ded02 AM |
13670 | case R_PPC64_GOT_TPREL16_HI: |
| 13671 | case R_PPC64_GOT_TPREL16_HA: | |
| 13672 | if (tls_mask != 0 | |
| 13673 | && (tls_mask & TLS_TPREL) == 0) | |
| 13674 | { | |
| 13675 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13676 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13677 | r_type = R_PPC64_NONE; |
| 13678 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13679 | } | |
| 13680 | break; | |
| 13681 | ||
| 411e1bfb AM |
13682 | case R_PPC64_GOT_TPREL16_DS: |
| 13683 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13684 | if (tls_mask != 0 |
| 13685 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13686 | { |
| 81407a69 | 13687 | toctprel: |
| 95f0d0d2 | 13688 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13689 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13690 | insn &= 31 << 21; |
| 13691 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13692 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13693 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13694 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13695 | if (toc_symndx != 0) |
| 13696 | { | |
| 13697 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13698 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13699 | /* We changed the symbol. Start over in order to |
| 13700 | get h, sym, sec etc. right. */ | |
| c316a17c | 13701 | goto again; |
| 0d4792f7 AM |
13702 | } |
| 13703 | else | |
| 13704 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13705 | } |
| 13706 | break; | |
| 13707 | ||
| 13708 | case R_PPC64_TLS: | |
| 951fd09b AM |
13709 | if (tls_mask != 0 |
| 13710 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13711 | { |
| 95f0d0d2 | 13712 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13713 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13714 | if (insn == 0) | |
| 411e1bfb | 13715 | abort (); |
| 95f0d0d2 | 13716 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13717 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13718 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13719 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13720 | r_type = R_PPC64_TPREL16_LO; |
| 13721 | if (toc_symndx != 0) | |
| 13722 | { | |
| 13723 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13724 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13725 | /* We changed the symbol. Start over in order to |
| 13726 | get h, sym, sec etc. right. */ | |
| c316a17c | 13727 | goto again; |
| 0d4792f7 AM |
13728 | } |
| 13729 | else | |
| 13730 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13731 | } |
| 13732 | break; | |
| 13733 | ||
| 411e1bfb AM |
13734 | case R_PPC64_GOT_TLSGD16_HI: |
| 13735 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13736 | tls_gd = TLS_TPRELGD; |
| 13737 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13738 | goto tls_gdld_hi; | |
| 13739 | break; | |
| 13740 | ||
| 411e1bfb AM |
13741 | case R_PPC64_GOT_TLSLD16_HI: |
| 13742 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13743 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13744 | { |
| 951fd09b AM |
13745 | tls_gdld_hi: |
| 13746 | if ((tls_mask & tls_gd) != 0) | |
| 13747 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13748 | + R_PPC64_GOT_TPREL16_DS); | |
| 13749 | else | |
| 411e1bfb | 13750 | { |
| 4fe5ca5b | 13751 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13752 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13753 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13754 | } |
| 951fd09b | 13755 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13756 | } |
| 13757 | break; | |
| 13758 | ||
| 951fd09b AM |
13759 | case R_PPC64_GOT_TLSGD16: |
| 13760 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13761 | tls_gd = TLS_TPRELGD; | |
| 13762 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13763 | goto tls_ldgd_opt; |
| 951fd09b | 13764 | break; |
| 411e1bfb | 13765 | |
| 951fd09b AM |
13766 | case R_PPC64_GOT_TLSLD16: |
| 13767 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13768 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13769 | { | |
| 3a71aa26 | 13770 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13771 | bfd_vma offset; |
| 13772 | ||
| 13773 | tls_ldgd_opt: | |
| 727fc41e AM |
13774 | offset = (bfd_vma) -1; |
| 13775 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13776 | __tls_get_addr calls, we must trust that the call | |
| 13777 | stays with its arg setup insns, ie. that the next | |
| 13778 | reloc is the __tls_get_addr call associated with | |
| 13779 | the current reloc. Edit both insns. */ | |
| 13780 | if (input_section->has_tls_get_addr_call | |
| 13781 | && rel + 1 < relend | |
| 13782 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13783 | htab->tls_get_addr, | |
| 13784 | htab->tls_get_addr_fd)) | |
| 13785 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13786 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13787 | need to keep the destination reg. It may be | |
| 13788 | something other than the usual r3, and moved to r3 | |
| 13789 | before the call by intervening code. */ | |
| 95f0d0d2 | 13790 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13791 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13792 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13793 | { |
| 102890f0 | 13794 | /* IE */ |
| b86ac8e3 | 13795 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13796 | insn1 |= 58 << 26; /* ld */ |
| 13797 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13798 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13799 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13800 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13801 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13802 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13803 | else |
| 102890f0 AM |
13804 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13805 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13806 | } | |
| 13807 | else | |
| 13808 | { | |
| 13809 | /* LE */ | |
| b86ac8e3 AM |
13810 | insn1 &= 0x1f << 21; |
| 13811 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13812 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13813 | if (tls_gd == 0) | |
| 951fd09b | 13814 | { |
| 102890f0 | 13815 | /* Was an LD reloc. */ |
| 1d483afe AM |
13816 | if (toc_symndx) |
| 13817 | sec = local_sections[toc_symndx]; | |
| 13818 | for (r_symndx = 0; | |
| 13819 | r_symndx < symtab_hdr->sh_info; | |
| 13820 | r_symndx++) | |
| 13821 | if (local_sections[r_symndx] == sec) | |
| 13822 | break; | |
| 13823 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13824 | r_symndx = STN_UNDEF; |
| 102890f0 | 13825 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13826 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13827 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13828 | + sec->output_offset | |
| 13829 | + sec->output_section->vma); | |
| 951fd09b | 13830 | } |
| 102890f0 | 13831 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13832 | { |
| 13833 | r_symndx = toc_symndx; | |
| 13834 | rel->r_addend = toc_addend; | |
| 13835 | } | |
| 102890f0 AM |
13836 | r_type = R_PPC64_TPREL16_HA; |
| 13837 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13838 | if (offset != (bfd_vma) -1) |
| 13839 | { | |
| 13840 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13841 | R_PPC64_TPREL16_LO); | |
| 13842 | rel[1].r_offset = offset + d_offset; | |
| 13843 | rel[1].r_addend = rel->r_addend; | |
| 13844 | } | |
| 102890f0 | 13845 | } |
| 95f0d0d2 | 13846 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13847 | contents + rel->r_offset - d_offset); |
| 727fc41e AM |
13848 | if (offset != (bfd_vma) -1) |
| 13849 | { | |
| 95f0d0d2 | 13850 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
13851 | contents + offset + 4); |
| 13852 | if (insn3 == NOP | |
| 13853 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13854 | { | |
| 13855 | rel[1].r_offset += 4; | |
| 95f0d0d2 | 13856 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
13857 | insn2 = NOP; |
| 13858 | } | |
| 95f0d0d2 | 13859 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13860 | } |
| 13861 | if ((tls_mask & tls_gd) == 0 | |
| 13862 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13863 | { | |
| 13864 | /* We changed the symbol. Start over in order | |
| 13865 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13866 | goto again; |
| 727fc41e AM |
13867 | } |
| 13868 | } | |
| 13869 | break; | |
| 13870 | ||
| 13871 | case R_PPC64_TLSGD: | |
| 13872 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13873 | { | |
| 13874 | unsigned int insn2, insn3; | |
| 13875 | bfd_vma offset = rel->r_offset; | |
| 13876 | ||
| 13877 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13878 | { | |
| 13879 | /* IE */ | |
| 13880 | r_type = R_PPC64_NONE; | |
| 13881 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13882 | } | |
| 13883 | else | |
| 13884 | { | |
| 13885 | /* LE */ | |
| 13886 | if (toc_symndx != 0) | |
| 13887 | { | |
| 13888 | r_symndx = toc_symndx; | |
| 13889 | rel->r_addend = toc_addend; | |
| 13890 | } | |
| 13891 | r_type = R_PPC64_TPREL16_LO; | |
| 13892 | rel->r_offset = offset + d_offset; | |
| 13893 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13894 | } | |
| 13895 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13896 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13897 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13898 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13899 | insn3 = bfd_get_32 (input_bfd, |
| 3a71aa26 | 13900 | contents + offset + 4); |
| 102890f0 AM |
13901 | if (insn3 == NOP |
| 13902 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13903 | { | |
| 727fc41e | 13904 | rel->r_offset += 4; |
| 95f0d0d2 | 13905 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 3a71aa26 | 13906 | insn2 = NOP; |
| 102890f0 | 13907 | } |
| 95f0d0d2 | 13908 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13909 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13910 | goto again; |
| 411e1bfb | 13911 | } |
| 411e1bfb AM |
13912 | break; |
| 13913 | ||
| 727fc41e AM |
13914 | case R_PPC64_TLSLD: |
| 13915 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13916 | { | |
| 13917 | unsigned int insn2, insn3; | |
| 13918 | bfd_vma offset = rel->r_offset; | |
| 13919 | ||
| 13920 | if (toc_symndx) | |
| 13921 | sec = local_sections[toc_symndx]; | |
| 13922 | for (r_symndx = 0; | |
| 13923 | r_symndx < symtab_hdr->sh_info; | |
| 13924 | r_symndx++) | |
| 13925 | if (local_sections[r_symndx] == sec) | |
| 13926 | break; | |
| 13927 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13928 | r_symndx = STN_UNDEF; |
| 727fc41e | 13929 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13930 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13931 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13932 | + sec->output_offset | |
| 13933 | + sec->output_section->vma); | |
| 13934 | ||
| 13935 | r_type = R_PPC64_TPREL16_LO; | |
| 13936 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13937 | rel->r_offset = offset + d_offset; | |
| 13938 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13939 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13940 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13941 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13942 | insn3 = bfd_get_32 (input_bfd, |
| 727fc41e AM |
13943 | contents + offset + 4); |
| 13944 | if (insn3 == NOP | |
| 13945 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13946 | { | |
| 13947 | rel->r_offset += 4; | |
| 95f0d0d2 | 13948 | bfd_put_32 (input_bfd, insn2, contents + offset + 4); |
| 727fc41e AM |
13949 | insn2 = NOP; |
| 13950 | } | |
| 95f0d0d2 | 13951 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13952 | goto again; |
| 727fc41e AM |
13953 | } |
| 13954 | break; | |
| 13955 | ||
| 411e1bfb | 13956 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13957 | if (rel + 1 < relend |
| 13958 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13959 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13960 | { |
| 951fd09b AM |
13961 | if ((tls_mask & TLS_GD) == 0) |
| 13962 | { | |
| 13963 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13964 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13965 | r_type = R_PPC64_TPREL64; | |
| 13966 | else | |
| 13967 | { | |
| 4ce794b7 | 13968 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13969 | r_type = R_PPC64_NONE; |
| 13970 | } | |
| 13971 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13972 | } | |
| 13973 | } | |
| 13974 | else | |
| 13975 | { | |
| 13976 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13977 | { |
| 4ce794b7 | 13978 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13979 | r_type = R_PPC64_NONE; |
| 951fd09b | 13980 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13981 | } |
| 411e1bfb AM |
13982 | } |
| 13983 | break; | |
| 13984 | ||
| 13985 | case R_PPC64_TPREL64: | |
| 951fd09b | 13986 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13987 | { |
| 13988 | r_type = R_PPC64_NONE; | |
| 13989 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13990 | } | |
| 13991 | break; | |
| 52a82034 | 13992 | |
| 006589cf AM |
13993 | case R_PPC64_ENTRY: |
| 13994 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 13995 | if (!bfd_link_pic (info) | |
| 13996 | && !info->traditional_format | |
| 13997 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13998 | { | |
| 13999 | unsigned int insn1, insn2; | |
| 14000 | ||
| 14001 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14002 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14003 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14004 | && insn2 == ADD_R2_R2_R12) | |
| 14005 | { | |
| 95f0d0d2 | 14006 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14007 | LIS_R2 + PPC_HA (relocation), |
| 14008 | contents + rel->r_offset); | |
| 95f0d0d2 | 14009 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14010 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14011 | contents + rel->r_offset + 4); | |
| 14012 | } | |
| 14013 | } | |
| 14014 | else | |
| 14015 | { | |
| 14016 | relocation -= (rel->r_offset | |
| 14017 | + input_section->output_offset | |
| 14018 | + input_section->output_section->vma); | |
| 14019 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14020 | { | |
| 14021 | unsigned int insn1, insn2; | |
| 14022 | ||
| 14023 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14024 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14025 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14026 | && insn2 == ADD_R2_R2_R12) | |
| 14027 | { | |
| 95f0d0d2 | 14028 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14029 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14030 | contents + rel->r_offset); | |
| 95f0d0d2 | 14031 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14032 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14033 | contents + rel->r_offset + 4); | |
| 14034 | } | |
| 14035 | } | |
| 14036 | } | |
| 14037 | break; | |
| 14038 | ||
| 52a82034 AM |
14039 | case R_PPC64_REL16_HA: |
| 14040 | /* If we are generating a non-PIC executable, edit | |
| 14041 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14042 | . addi 2,2,.TOC.-0b@l | |
| 14043 | used by ELFv2 global entry points to set up r2, to | |
| 14044 | . lis 2,.TOC.@ha | |
| 14045 | . addi 2,2,.TOC.@l | |
| 14046 | if .TOC. is in range. */ | |
| 0e1862bb | 14047 | if (!bfd_link_pic (info) |
| 810d4e75 | 14048 | && !info->traditional_format |
| 006589cf | 14049 | && !htab->opd_abi |
| 4f038ee5 | 14050 | && rel->r_addend == d_offset |
| 52a82034 AM |
14051 | && h != NULL && &h->elf == htab->elf.hgot |
| 14052 | && rel + 1 < relend | |
| 14053 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14054 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14055 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14056 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14057 | { | |
| 14058 | unsigned int insn1, insn2; | |
| 14059 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14060 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14061 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14062 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14063 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14064 | { |
| 14065 | r_type = R_PPC64_ADDR16_HA; | |
| 14066 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14067 | rel->r_addend -= d_offset; | |
| 14068 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14069 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14070 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14071 | } |
| 14072 | } | |
| 14073 | break; | |
| 411e1bfb AM |
14074 | } |
| 14075 | ||
| 14076 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14077 | insn = 0; |
| b25116a9 AM |
14078 | max_br_offset = 1 << 25; |
| 14079 | addend = rel->r_addend; | |
| bc30df16 | 14080 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14081 | switch (r_type) |
| 5bd4f169 AM |
14082 | { |
| 14083 | default: | |
| 65f38f15 | 14084 | break; |
| 5bd4f169 | 14085 | |
| 3b421ab3 AM |
14086 | case R_PPC64_TOCSAVE: |
| 14087 | if (relocation + addend == (rel->r_offset | |
| 14088 | + input_section->output_offset | |
| 14089 | + input_section->output_section->vma) | |
| 14090 | && tocsave_find (htab, NO_INSERT, | |
| 14091 | &local_syms, rel, input_bfd)) | |
| 14092 | { | |
| 14093 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14094 | if (insn == NOP | |
| 14095 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14096 | bfd_put_32 (input_bfd, |
| 14097 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14098 | contents + rel->r_offset); |
| 14099 | } | |
| 14100 | break; | |
| 14101 | ||
| 65f38f15 AM |
14102 | /* Branch taken prediction relocations. */ |
| 14103 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14104 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14105 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14106 | /* Fall through. */ |
| 65f38f15 | 14107 | |
| 86c76c7b | 14108 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14109 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14110 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14111 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14112 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14113 | /* Fall through. */ |
| 86c76c7b | 14114 | |
| b25116a9 AM |
14115 | case R_PPC64_REL14: |
| 14116 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14117 | /* Fall through. */ |
| 5bd4f169 | 14118 | |
| 65f38f15 | 14119 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14120 | /* Calls to functions with a different TOC, such as calls to |
| 14121 | shared objects, need to alter the TOC pointer. This is | |
| 14122 | done using a linkage stub. A REL24 branching to these | |
| 14123 | linkage stubs needs to be followed by a nop, as the nop | |
| 14124 | will be replaced with an instruction to restore the TOC | |
| 14125 | base pointer. */ | |
| 8387904d | 14126 | fdh = h; |
| b31867b6 AM |
14127 | if (h != NULL |
| 14128 | && h->oh != NULL | |
| 14129 | && h->oh->is_func_descriptor) | |
| 14130 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14131 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14132 | htab); | |
| 6abec6bc | 14133 | if (stub_entry != NULL |
| ad8e1ba5 | 14134 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14135 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14136 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14137 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14138 | { |
| b25116a9 | 14139 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14140 | |
| ba8ca3e7 AM |
14141 | /* All of these stubs will modify r2, so there must be a |
| 14142 | branch and link followed by a nop. The nop is | |
| 14143 | replaced by an insn to restore r2. */ | |
| eea6121a | 14144 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14145 | { |
| ba8ca3e7 AM |
14146 | unsigned long br; |
| 14147 | ||
| 14148 | br = bfd_get_32 (input_bfd, | |
| 14149 | contents + rel->r_offset); | |
| 14150 | if ((br & 1) != 0) | |
| 41bd81ab | 14151 | { |
| ba8ca3e7 AM |
14152 | unsigned long nop; |
| 14153 | ||
| 14154 | nop = bfd_get_32 (input_bfd, | |
| 14155 | contents + rel->r_offset + 4); | |
| 14156 | if (nop == NOP | |
| 14157 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14158 | { |
| ba8ca3e7 AM |
14159 | if (h != NULL |
| 14160 | && (h == htab->tls_get_addr_fd | |
| 14161 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14162 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14163 | { |
| 14164 | /* Special stub used, leave nop alone. */ | |
| 14165 | } | |
| 14166 | else | |
| a078d95a AM |
14167 | bfd_put_32 (input_bfd, |
| 14168 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14169 | contents + rel->r_offset + 4); |
| 14170 | can_plt_call = TRUE; | |
| a7f2871e | 14171 | } |
| 41bd81ab | 14172 | } |
| 5bd4f169 | 14173 | } |
| 721956f4 | 14174 | |
| ba8ca3e7 | 14175 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14176 | { |
| ba8ca3e7 AM |
14177 | const char *name = h->elf.root.root.string; |
| 14178 | ||
| 14179 | if (*name == '.') | |
| 14180 | ++name; | |
| 14181 | ||
| 14182 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14183 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14184 | { |
| ba8ca3e7 AM |
14185 | /* Allow crt1 branch to go via a toc adjusting |
| 14186 | stub. Other calls that never return could do | |
| 14187 | the same, if we could detect such. */ | |
| b25116a9 | 14188 | can_plt_call = TRUE; |
| 6ab189d5 | 14189 | } |
| ba8ca3e7 AM |
14190 | } |
| 14191 | ||
| 14192 | if (!can_plt_call) | |
| 14193 | { | |
| 14194 | /* g++ as of 20130507 emits self-calls without a | |
| 14195 | following nop. This is arguably wrong since we | |
| 14196 | have conflicting information. On the one hand a | |
| 14197 | global symbol and on the other a local call | |
| 14198 | sequence, but don't error for this special case. | |
| 14199 | It isn't possible to cheaply verify we have | |
| 14200 | exactly such a call. Allow all calls to the same | |
| 14201 | section. */ | |
| 14202 | asection *code_sec = sec; | |
| 14203 | ||
| 14204 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14205 | { |
| ba8ca3e7 AM |
14206 | bfd_vma off = (relocation + addend |
| 14207 | - sec->output_section->vma | |
| 14208 | - sec->output_offset); | |
| bc30df16 | 14209 | |
| ba8ca3e7 | 14210 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14211 | } |
| ba8ca3e7 AM |
14212 | if (code_sec == input_section) |
| 14213 | can_plt_call = TRUE; | |
| 14214 | } | |
| 14215 | ||
| 14216 | if (!can_plt_call) | |
| 14217 | { | |
| 4805fc55 AM |
14218 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14219 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14220 | info->callbacks->einfo | |
| 695344c0 | 14221 | /* xgettext:c-format */ |
| 4805fc55 AM |
14222 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " |
| 14223 | "recompile with -fPIC\n"), | |
| 14224 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14225 | else | |
| 14226 | info->callbacks->einfo | |
| 695344c0 | 14227 | /* xgettext:c-format */ |
| 4805fc55 AM |
14228 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " |
| 14229 | "(-mcmodel=small toc adjust stub)\n"), | |
| 14230 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14231 | |
| 14232 | bfd_set_error (bfd_error_bad_value); | |
| 14233 | ret = FALSE; | |
| 721956f4 AM |
14234 | } |
| 14235 | ||
| b25116a9 | 14236 | if (can_plt_call |
| 794e51c0 AM |
14237 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14238 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14239 | unresolved_reloc = FALSE; |
| 14240 | } | |
| 14241 | ||
| 6abec6bc AM |
14242 | if ((stub_entry == NULL |
| 14243 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14244 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14245 | && get_opd_info (sec) != NULL) |
| 14246 | { | |
| 14247 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14248 | bfd_vma off = (relocation + addend |
| 14249 | - sec->output_section->vma | |
| 14250 | - sec->output_offset); | |
| aef36ac1 | 14251 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14252 | if (dest != (bfd_vma) -1) |
| 14253 | { | |
| 14254 | relocation = dest; | |
| 14255 | addend = 0; | |
| bc30df16 | 14256 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14257 | } |
| 14258 | } | |
| 14259 | ||
| b25116a9 AM |
14260 | /* If the branch is out of reach we ought to have a long |
| 14261 | branch stub. */ | |
| 14262 | from = (rel->r_offset | |
| 14263 | + input_section->output_offset | |
| 14264 | + input_section->output_section->vma); | |
| 14265 | ||
| 6911b7dc AM |
14266 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14267 | ? fdh->elf.other | |
| 14268 | : sym->st_other); | |
| 14269 | ||
| 6abec6bc AM |
14270 | if (stub_entry != NULL |
| 14271 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14272 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14273 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14274 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14275 | || (relocation + addend - from + max_br_offset | |
| 14276 | < 2 * max_br_offset))) | |
| 14277 | /* Don't use the stub if this branch is in range. */ | |
| 14278 | stub_entry = NULL; | |
| b25116a9 AM |
14279 | |
| 14280 | if (stub_entry != NULL) | |
| 14281 | { | |
| 14282 | /* Munge up the value and addend so that we call the stub | |
| 14283 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14284 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14285 | ||
| 14286 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14287 | relocation += (stub_sec->output_offset | |
| 14288 | + stub_sec->output_section->vma | |
| 14289 | + stub_sec->size - htab->sfpr->size | |
| 14290 | - htab->sfpr->output_offset | |
| 14291 | - htab->sfpr->output_section->vma); | |
| 14292 | else | |
| 14293 | relocation = (stub_entry->stub_offset | |
| 14294 | + stub_sec->output_offset | |
| 14295 | + stub_sec->output_section->vma); | |
| b25116a9 | 14296 | addend = 0; |
| bc30df16 | 14297 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14298 | |
| 794e51c0 AM |
14299 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 14300 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14301 | && (ALWAYS_EMIT_R2SAVE | |
| 14302 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14303 | && rel + 1 < relend |
| 14304 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14305 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14306 | relocation += 4; | |
| b25116a9 AM |
14307 | } |
| 14308 | ||
| 14309 | if (insn != 0) | |
| 14310 | { | |
| 794e51c0 | 14311 | if (is_isa_v2) |
| 721956f4 | 14312 | { |
| b25116a9 AM |
14313 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14314 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14315 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14316 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14317 | insn |= 0x02 << 21; | |
| 14318 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14319 | insn |= 0x08 << 21; | |
| 14320 | else | |
| 14321 | break; | |
| 14322 | } | |
| 14323 | else | |
| 14324 | { | |
| 14325 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14326 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14327 | insn ^= 0x01 << 21; |
| 721956f4 | 14328 | } |
| b25116a9 | 14329 | |
| 95f0d0d2 | 14330 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14331 | } |
| e86ce104 | 14332 | |
| 06da1e8e AM |
14333 | /* NOP out calls to undefined weak functions. |
| 14334 | We can thus call a weak function without first | |
| 14335 | checking whether the function is defined. */ | |
| b25116a9 | 14336 | else if (h != NULL |
| 039b3fef | 14337 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14338 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14339 | && r_type == R_PPC64_REL24 |
| 14340 | && relocation == 0 | |
| 4cc603a5 | 14341 | && addend == 0) |
| e86ce104 | 14342 | { |
| 95f0d0d2 | 14343 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14344 | goto copy_reloc; |
| e86ce104 | 14345 | } |
| 65f38f15 AM |
14346 | break; |
| 14347 | } | |
| 5bd4f169 | 14348 | |
| 65f38f15 | 14349 | /* Set `addend'. */ |
| 411e1bfb | 14350 | tls_type = 0; |
| 65f38f15 AM |
14351 | switch (r_type) |
| 14352 | { | |
| 14353 | default: | |
| 25f53a85 | 14354 | info->callbacks->einfo |
| 695344c0 | 14355 | /* xgettext:c-format */ |
| bc30df16 | 14356 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14357 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14358 | |
| 65f38f15 | 14359 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14360 | ret = FALSE; |
| c316a17c | 14361 | goto copy_reloc; |
| 5bd4f169 | 14362 | |
| 65f38f15 | 14363 | case R_PPC64_NONE: |
| 411e1bfb | 14364 | case R_PPC64_TLS: |
| 727fc41e AM |
14365 | case R_PPC64_TLSGD: |
| 14366 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14367 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14368 | case R_PPC64_GNU_VTINHERIT: |
| 14369 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14370 | case R_PPC64_ENTRY: |
| c316a17c | 14371 | goto copy_reloc; |
| 5bd4f169 AM |
14372 | |
| 14373 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14374 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14375 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14376 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14377 | case R_PPC64_GOT_TLSGD16: |
| 14378 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14379 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14380 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14381 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14382 | goto dogot; |
| 14383 | ||
| 14384 | case R_PPC64_GOT_TLSLD16: | |
| 14385 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14386 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14387 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14388 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14389 | goto dogot; |
| 14390 | ||
| 14391 | case R_PPC64_GOT_TPREL16_DS: | |
| 14392 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14393 | case R_PPC64_GOT_TPREL16_HI: | |
| 14394 | case R_PPC64_GOT_TPREL16_HA: | |
| 14395 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14396 | goto dogot; | |
| 14397 | ||
| 14398 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14399 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14400 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14401 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14402 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14403 | goto dogot; | |
| 14404 | ||
| 65f38f15 AM |
14405 | case R_PPC64_GOT16: |
| 14406 | case R_PPC64_GOT16_LO: | |
| 14407 | case R_PPC64_GOT16_HI: | |
| 14408 | case R_PPC64_GOT16_HA: | |
| 14409 | case R_PPC64_GOT16_DS: | |
| 14410 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14411 | dogot: |
| 5bd4f169 AM |
14412 | { |
| 14413 | /* Relocation is to the entry for this symbol in the global | |
| 14414 | offset table. */ | |
| e717da7e | 14415 | asection *got; |
| d881513a | 14416 | bfd_vma *offp; |
| 5bd4f169 | 14417 | bfd_vma off; |
| d881513a | 14418 | unsigned long indx = 0; |
| 927be08e | 14419 | struct got_entry *ent; |
| 65f38f15 | 14420 | |
| d881513a AM |
14421 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14422 | && (h == NULL | |
| f5385ebf | 14423 | || !h->elf.def_dynamic)) |
| 927be08e | 14424 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14425 | else |
| 5bd4f169 | 14426 | { |
| 5bd4f169 | 14427 | |
| d881513a AM |
14428 | if (h != NULL) |
| 14429 | { | |
| 14430 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 0e1862bb | 14431 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), |
| 039b3fef | 14432 | &h->elf) |
| 0e1862bb | 14433 | || (bfd_link_pic (info) |
| afe397ea | 14434 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14435 | /* This is actually a static link, or it is a |
| 14436 | -Bsymbolic link and the symbol is defined | |
| 14437 | locally, or the symbol was forced to be local | |
| 14438 | because of a version file. */ | |
| 14439 | ; | |
| 14440 | else | |
| 14441 | { | |
| 14acf4dc | 14442 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14443 | indx = h->elf.dynindx; |
| d881513a AM |
14444 | unresolved_reloc = FALSE; |
| 14445 | } | |
| 039b3fef | 14446 | ent = h->elf.got.glist; |
| d881513a | 14447 | } |
| 411e1bfb | 14448 | else |
| 5bd4f169 | 14449 | { |
| d881513a AM |
14450 | if (local_got_ents == NULL) |
| 14451 | abort (); | |
| 14452 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14453 | } |
| d881513a AM |
14454 | |
| 14455 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14456 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14457 | && ent->owner == input_bfd |
| d881513a AM |
14458 | && ent->tls_type == tls_type) |
| 14459 | break; | |
| 5bd4f169 | 14460 | } |
| 411e1bfb | 14461 | |
| 927be08e AM |
14462 | if (ent == NULL) |
| 14463 | abort (); | |
| 14464 | if (ent->is_indirect) | |
| 14465 | ent = ent->got.ent; | |
| 14466 | offp = &ent->got.offset; | |
| 14467 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14468 | if (got == NULL) |
| 14469 | abort (); | |
| 14470 | ||
| 411e1bfb AM |
14471 | /* The offset must always be a multiple of 8. We use the |
| 14472 | least significant bit to record whether we have already | |
| 14473 | processed this entry. */ | |
| d881513a | 14474 | off = *offp; |
| 411e1bfb AM |
14475 | if ((off & 1) != 0) |
| 14476 | off &= ~1; | |
| 5bd4f169 AM |
14477 | else |
| 14478 | { | |
| 411e1bfb AM |
14479 | /* Generate relocs for the dynamic linker, except in |
| 14480 | the case of TLSLD where we'll use one entry per | |
| 14481 | module. */ | |
| 25f23106 AM |
14482 | asection *relgot; |
| 14483 | bfd_boolean ifunc; | |
| e717da7e | 14484 | |
| d881513a | 14485 | *offp = off | 1; |
| 25f23106 AM |
14486 | relgot = NULL; |
| 14487 | ifunc = (h != NULL | |
| 14488 | ? h->elf.type == STT_GNU_IFUNC | |
| 14489 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14490 | if (ifunc) |
| 33e44f2e | 14491 | relgot = htab->elf.irelplt; |
| 0e1862bb | 14492 | else if ((bfd_link_pic (info) || indx != 0) |
| 19e08130 AM |
14493 | && (h == NULL |
| 14494 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14495 | && !h->elf.def_dynamic) | |
| 14496 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14497 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14498 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14499 | if (relgot != NULL) |
| 5bd4f169 | 14500 | { |
| e717da7e AM |
14501 | outrel.r_offset = (got->output_section->vma |
| 14502 | + got->output_offset | |
| 411e1bfb | 14503 | + off); |
| 4cc603a5 | 14504 | outrel.r_addend = addend; |
| d881513a | 14505 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14506 | { |
| 411e1bfb | 14507 | outrel.r_addend = 0; |
| e515b051 | 14508 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14509 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14510 | { | |
| e717da7e AM |
14511 | loc = relgot->contents; |
| 14512 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14513 | * sizeof (Elf64_External_Rela)); |
| 14514 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14515 | &outrel, loc); | |
| e515b051 | 14516 | outrel.r_offset += 8; |
| 4cc603a5 | 14517 | outrel.r_addend = addend; |
| d881513a AM |
14518 | outrel.r_info |
| 14519 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14520 | } |
| 411e1bfb | 14521 | } |
| 951fd09b | 14522 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14523 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14524 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14525 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14526 | else if (indx != 0) |
| 14527 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14528 | else | |
| 81407a69 | 14529 | { |
| 25f23106 AM |
14530 | if (ifunc) |
| 14531 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14532 | else | |
| 14533 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14534 | |
| 14535 | /* Write the .got section contents for the sake | |
| 14536 | of prelink. */ | |
| e717da7e | 14537 | loc = got->contents + off; |
| 23fbd6fa JJ |
14538 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14539 | loc); | |
| 81407a69 | 14540 | } |
| 81407a69 AM |
14541 | |
| 14542 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14543 | { |
| 14544 | outrel.r_addend += relocation; | |
| 14545 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14546 | { |
| 14547 | if (htab->elf.tls_sec == NULL) | |
| 14548 | outrel.r_addend = 0; | |
| 14549 | else | |
| 14550 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14551 | } | |
| e515b051 | 14552 | } |
| e717da7e AM |
14553 | loc = relgot->contents; |
| 14554 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14555 | * sizeof (Elf64_External_Rela)); |
| 14556 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14557 | } | |
| 14558 | ||
| ad8e1ba5 | 14559 | /* Init the .got section contents here if we're not |
| 81407a69 | 14560 | emitting a reloc. */ |
| d881513a | 14561 | else |
| 411e1bfb | 14562 | { |
| 4cc603a5 | 14563 | relocation += addend; |
| 7b609f53 AM |
14564 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14565 | relocation = 1; | |
| 14566 | else if (tls_type != 0) | |
| 411e1bfb | 14567 | { |
| 989f9879 AM |
14568 | if (htab->elf.tls_sec == NULL) |
| 14569 | relocation = 0; | |
| 14570 | else | |
| 14571 | { | |
| 14572 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14573 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14574 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14575 | } | |
| 5bd4f169 | 14576 | |
| 7b609f53 AM |
14577 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14578 | { | |
| 14579 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14580 | got->contents + off + 8); |
| 7b609f53 AM |
14581 | relocation = 1; |
| 14582 | } | |
| 411e1bfb | 14583 | } |
| 7b609f53 | 14584 | |
| 411e1bfb | 14585 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14586 | got->contents + off); |
| 5bd4f169 AM |
14587 | } |
| 14588 | } | |
| 14589 | ||
| 65f38f15 AM |
14590 | if (off >= (bfd_vma) -2) |
| 14591 | abort (); | |
| 14592 | ||
| bf102f86 | 14593 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14594 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14595 | } |
| 65f38f15 AM |
14596 | break; |
| 14597 | ||
| 14598 | case R_PPC64_PLT16_HA: | |
| 14599 | case R_PPC64_PLT16_HI: | |
| 14600 | case R_PPC64_PLT16_LO: | |
| 14601 | case R_PPC64_PLT32: | |
| 14602 | case R_PPC64_PLT64: | |
| 14603 | /* Relocation is to the entry for this symbol in the | |
| 14604 | procedure linkage table. */ | |
| cbf95972 AM |
14605 | { |
| 14606 | struct plt_entry **plt_list = NULL; | |
| 14607 | if (h != NULL) | |
| 14608 | plt_list = &h->elf.plt.plist; | |
| 14609 | else if (local_got_ents != NULL) | |
| 14610 | { | |
| 14611 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14612 | (local_got_ents + symtab_hdr->sh_info); | |
| 14613 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14614 | (local_plt + symtab_hdr->sh_info); | |
| 14615 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14616 | plt_list = local_plt + r_symndx; | |
| 14617 | } | |
| 14618 | if (plt_list) | |
| 14619 | { | |
| 14620 | struct plt_entry *ent; | |
| 65f38f15 | 14621 | |
| cbf95972 AM |
14622 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14623 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14624 | && ent->addend == orig_rel.r_addend) | |
| 14625 | { | |
| 14626 | asection *plt; | |
| 14627 | ||
| 14628 | plt = htab->elf.splt; | |
| 14629 | if (!htab->elf.dynamic_sections_created | |
| 14630 | || h == NULL | |
| 14631 | || h->elf.dynindx == -1) | |
| 14632 | plt = htab->elf.iplt; | |
| 14633 | relocation = (plt->output_section->vma | |
| 14634 | + plt->output_offset | |
| 14635 | + ent->plt.offset); | |
| 14636 | addend = 0; | |
| 14637 | unresolved_reloc = FALSE; | |
| 14638 | break; | |
| 14639 | } | |
| 14640 | } | |
| 14641 | } | |
| 65f38f15 | 14642 | break; |
| 5bd4f169 | 14643 | |
| 0b13192e AM |
14644 | case R_PPC64_TOC: |
| 14645 | /* Relocation value is TOC base. */ | |
| 14646 | relocation = TOCstart; | |
| cf35638d | 14647 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14648 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14649 | else if (unresolved_reloc) |
| 14650 | ; | |
| 6f20ed8a AM |
14651 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14652 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14653 | else |
| 14654 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14655 | goto dodyn; |
| 0b13192e | 14656 | |
| 5bd4f169 AM |
14657 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14658 | which is the address of the start of the TOC plus 0x8000. | |
| 14659 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14660 | in this order. */ | |
| 65f38f15 AM |
14661 | case R_PPC64_TOC16: |
| 14662 | case R_PPC64_TOC16_LO: | |
| 14663 | case R_PPC64_TOC16_HI: | |
| 14664 | case R_PPC64_TOC16_DS: | |
| 14665 | case R_PPC64_TOC16_LO_DS: | |
| 14666 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14667 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14668 | break; |
| 14669 | ||
| 14670 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14671 | case R_PPC64_SECTOFF: |
| 14672 | case R_PPC64_SECTOFF_LO: | |
| 14673 | case R_PPC64_SECTOFF_HI: | |
| 14674 | case R_PPC64_SECTOFF_DS: | |
| 14675 | case R_PPC64_SECTOFF_LO_DS: | |
| 14676 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14677 | if (sec != NULL) |
| 65f38f15 | 14678 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14679 | break; |
| 14680 | ||
| 25f23106 AM |
14681 | case R_PPC64_REL16: |
| 14682 | case R_PPC64_REL16_LO: | |
| 14683 | case R_PPC64_REL16_HI: | |
| 14684 | case R_PPC64_REL16_HA: | |
| a680de9a | 14685 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14686 | break; |
| 14687 | ||
| 721956f4 AM |
14688 | case R_PPC64_REL14: |
| 14689 | case R_PPC64_REL14_BRNTAKEN: | |
| 14690 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14691 | case R_PPC64_REL24: |
| 14692 | break; | |
| 14693 | ||
| 411e1bfb AM |
14694 | case R_PPC64_TPREL16: |
| 14695 | case R_PPC64_TPREL16_LO: | |
| 14696 | case R_PPC64_TPREL16_HI: | |
| 14697 | case R_PPC64_TPREL16_HA: | |
| 14698 | case R_PPC64_TPREL16_DS: | |
| 14699 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14700 | case R_PPC64_TPREL16_HIGH: |
| 14701 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14702 | case R_PPC64_TPREL16_HIGHER: |
| 14703 | case R_PPC64_TPREL16_HIGHERA: | |
| 14704 | case R_PPC64_TPREL16_HIGHEST: | |
| 14705 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14706 | if (h != NULL |
| 14707 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14708 | && h->elf.dynindx == -1) | |
| 14709 | { | |
| 14710 | /* Make this relocation against an undefined weak symbol | |
| 14711 | resolve to zero. This is really just a tweak, since | |
| 14712 | code using weak externs ought to check that they are | |
| 14713 | defined before using them. */ | |
| 14714 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14715 | ||
| 95f0d0d2 | 14716 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14717 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14718 | if (insn != 0) | |
| 95f0d0d2 | 14719 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14720 | break; |
| 14721 | } | |
| 989f9879 AM |
14722 | if (htab->elf.tls_sec != NULL) |
| 14723 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 0e1862bb | 14724 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
14725 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14726 | libs as they will result in DT_TEXTREL being set, but | |
| 14727 | support them anyway. */ | |
| 14728 | goto dodyn; | |
| 14729 | break; | |
| 14730 | ||
| 14731 | case R_PPC64_DTPREL16: | |
| 14732 | case R_PPC64_DTPREL16_LO: | |
| 14733 | case R_PPC64_DTPREL16_HI: | |
| 14734 | case R_PPC64_DTPREL16_HA: | |
| 14735 | case R_PPC64_DTPREL16_DS: | |
| 14736 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14737 | case R_PPC64_DTPREL16_HIGH: |
| 14738 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14739 | case R_PPC64_DTPREL16_HIGHER: |
| 14740 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14741 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14742 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14743 | if (htab->elf.tls_sec != NULL) |
| 14744 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14745 | break; |
| 14746 | ||
| 45965137 AM |
14747 | case R_PPC64_ADDR64_LOCAL: |
| 14748 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14749 | ? h->elf.other | |
| 14750 | : sym->st_other); | |
| 14751 | break; | |
| 14752 | ||
| e515b051 AM |
14753 | case R_PPC64_DTPMOD64: |
| 14754 | relocation = 1; | |
| 14755 | addend = 0; | |
| 14756 | goto dodyn; | |
| 14757 | ||
| 411e1bfb | 14758 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14759 | if (htab->elf.tls_sec != NULL) |
| 14760 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14761 | goto dodyn; |
| 14762 | ||
| 14763 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14764 | if (htab->elf.tls_sec != NULL) |
| 14765 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14766 | /* Fall through. */ |
| 411e1bfb | 14767 | |
| 65f38f15 AM |
14768 | /* Relocations that may need to be propagated if this is a |
| 14769 | dynamic object. */ | |
| 04c9666a | 14770 | case R_PPC64_REL30: |
| 65f38f15 AM |
14771 | case R_PPC64_REL32: |
| 14772 | case R_PPC64_REL64: | |
| 14773 | case R_PPC64_ADDR14: | |
| 14774 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14775 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14776 | case R_PPC64_ADDR16: | |
| 14777 | case R_PPC64_ADDR16_DS: | |
| 14778 | case R_PPC64_ADDR16_HA: | |
| 14779 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14780 | case R_PPC64_ADDR16_HIGH: |
| 14781 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14782 | case R_PPC64_ADDR16_HIGHER: |
| 14783 | case R_PPC64_ADDR16_HIGHERA: | |
| 14784 | case R_PPC64_ADDR16_HIGHEST: | |
| 14785 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14786 | case R_PPC64_ADDR16_LO: | |
| 14787 | case R_PPC64_ADDR16_LO_DS: | |
| 14788 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14789 | case R_PPC64_ADDR32: |
| 14790 | case R_PPC64_ADDR64: | |
| 14791 | case R_PPC64_UADDR16: | |
| 14792 | case R_PPC64_UADDR32: | |
| 14793 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14794 | dodyn: |
| 5d1634d7 | 14795 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14796 | break; |
| 14797 | ||
| 41bd81ab AM |
14798 | if (NO_OPD_RELOCS && is_opd) |
| 14799 | break; | |
| 14800 | ||
| 8a9e8e72 AM |
14801 | if (bfd_link_pic (info) |
| 14802 | ? ((h != NULL && pc_dynrelocs (h)) | |
| 14803 | || must_be_dyn_reloc (info, r_type)) | |
| 14804 | : (h != NULL | |
| 14805 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14806 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14807 | { |
| b34976b6 | 14808 | bfd_boolean skip, relocate; |
| 65f38f15 | 14809 | asection *sreloc; |
| 1cf1f670 | 14810 | bfd_vma out_off; |
| 65f38f15 AM |
14811 | |
| 14812 | /* When generating a dynamic object, these relocations | |
| 14813 | are copied into the output file to be resolved at run | |
| 14814 | time. */ | |
| 14815 | ||
| b34976b6 AM |
14816 | skip = FALSE; |
| 14817 | relocate = FALSE; | |
| 65f38f15 | 14818 | |
| 1cf1f670 AM |
14819 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14820 | input_section, rel->r_offset); | |
| 14821 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14822 | skip = TRUE; |
| 1cf1f670 | 14823 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14824 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14825 | out_off += (input_section->output_section->vma |
| 14826 | + input_section->output_offset); | |
| 14827 | outrel.r_offset = out_off; | |
| 411e1bfb | 14828 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14829 | |
| 1cf1f670 AM |
14830 | /* Optimize unaligned reloc use. */ |
| 14831 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14832 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14833 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14834 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14835 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14836 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14837 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14838 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14839 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14840 | ||
| 65f38f15 | 14841 | if (skip) |
| 0bb2d96a | 14842 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14843 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14844 | && !is_opd |
| 14845 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14846 | { |
| 14847 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14848 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14849 | } | |
| 65f38f15 AM |
14850 | else |
| 14851 | { | |
| 41bd81ab AM |
14852 | /* This symbol is local, or marked to become local, |
| 14853 | or this is an opd section reloc which must point | |
| 14854 | at a local function. */ | |
| 65f38f15 | 14855 | outrel.r_addend += relocation; |
| e86ce104 | 14856 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14857 | { |
| 3fad3c7c | 14858 | if (is_opd && h != NULL) |
| afbe61cf AM |
14859 | { |
| 14860 | /* Lie about opd entries. This case occurs | |
| 14861 | when building shared libraries and we | |
| 14862 | reference a function in another shared | |
| 3fad3c7c AM |
14863 | lib. The same thing happens for a weak |
| 14864 | definition in an application that's | |
| 14865 | overridden by a strong definition in a | |
| 14866 | shared lib. (I believe this is a generic | |
| 14867 | bug in binutils handling of weak syms.) | |
| 14868 | In these cases we won't use the opd | |
| 1e2f5b6e | 14869 | entry in this lib. */ |
| b34976b6 | 14870 | unresolved_reloc = FALSE; |
| afbe61cf | 14871 | } |
| 25f23106 AM |
14872 | if (!is_opd |
| 14873 | && r_type == R_PPC64_ADDR64 | |
| 14874 | && (h != NULL | |
| 14875 | ? h->elf.type == STT_GNU_IFUNC | |
| 14876 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14877 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14878 | else | |
| 14879 | { | |
| 14880 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14881 | |
| 25f23106 AM |
14882 | /* We need to relocate .opd contents for ld.so. |
| 14883 | Prelink also wants simple and consistent rules | |
| 14884 | for relocs. This make all RELATIVE relocs have | |
| 14885 | *r_offset equal to r_addend. */ | |
| 14886 | relocate = TRUE; | |
| 14887 | } | |
| 65f38f15 AM |
14888 | } |
| 14889 | else | |
| 14890 | { | |
| 14891 | long indx = 0; | |
| 14892 | ||
| 25f23106 AM |
14893 | if (h != NULL |
| 14894 | ? h->elf.type == STT_GNU_IFUNC | |
| 14895 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14896 | { | |
| 25f53a85 | 14897 | info->callbacks->einfo |
| 695344c0 | 14898 | /* xgettext:c-format */ |
| bc30df16 AM |
14899 | (_("%P: %H: %s for indirect " |
| 14900 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14901 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14902 | ppc64_elf_howto_table[r_type]->name, |
| 14903 | sym_name); | |
| 14904 | ret = FALSE; | |
| 14905 | } | |
| cf35638d | 14906 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14907 | ; |
| 14908 | else if (sec == NULL || sec->owner == NULL) | |
| 14909 | { | |
| 14910 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14911 | return FALSE; |
| 65f38f15 AM |
14912 | } |
| 14913 | else | |
| 14914 | { | |
| 14915 | asection *osec; | |
| 14916 | ||
| 14917 | osec = sec->output_section; | |
| 14918 | indx = elf_section_data (osec)->dynindx; | |
| 14919 | ||
| 74541ad4 AM |
14920 | if (indx == 0) |
| 14921 | { | |
| 14922 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14923 | && htab->elf.data_index_section != NULL) | |
| 14924 | osec = htab->elf.data_index_section; | |
| 14925 | else | |
| 14926 | osec = htab->elf.text_index_section; | |
| 14927 | indx = elf_section_data (osec)->dynindx; | |
| 14928 | } | |
| 14929 | BFD_ASSERT (indx != 0); | |
| 14930 | ||
| 65f38f15 AM |
14931 | /* We are turning this relocation into one |
| 14932 | against a section symbol, so subtract out | |
| 14933 | the output section's address but not the | |
| 14934 | offset of the input section in the output | |
| 14935 | section. */ | |
| 14936 | outrel.r_addend -= osec->vma; | |
| 14937 | } | |
| 14938 | ||
| 14939 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14940 | } | |
| 14941 | } | |
| 14942 | ||
| 14943 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14944 | if (h != NULL |
| 14945 | ? h->elf.type == STT_GNU_IFUNC | |
| 14946 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14947 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14948 | if (sreloc == NULL) |
| 14949 | abort (); | |
| 14950 | ||
| dfbb6ac9 AM |
14951 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14952 | >= sreloc->size) | |
| 14953 | abort (); | |
| 947216bf AM |
14954 | loc = sreloc->contents; |
| 14955 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14956 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14957 | ||
| 14958 | /* If this reloc is against an external symbol, it will | |
| 14959 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14960 | anything now. However, for the sake of prelink ensure |
| 14961 | that the section contents are a known value. */ | |
| 65f38f15 | 14962 | if (! relocate) |
| 81407a69 AM |
14963 | { |
| 14964 | unresolved_reloc = FALSE; | |
| 14965 | /* The value chosen here is quite arbitrary as ld.so | |
| 14966 | ignores section contents except for the special | |
| 14967 | case of .opd where the contents might be accessed | |
| 14968 | before relocation. Choose zero, as that won't | |
| 14969 | cause reloc overflow. */ | |
| 14970 | relocation = 0; | |
| 14971 | addend = 0; | |
| 14972 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14973 | to improve backward compatibility with older | |
| 14974 | versions of ld. */ | |
| 14975 | if (r_type == R_PPC64_ADDR64) | |
| 14976 | addend = outrel.r_addend; | |
| 14977 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14978 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14979 | addend = (input_section->output_section->vma |
| 14980 | + input_section->output_offset | |
| 14981 | + rel->r_offset); | |
| 81407a69 | 14982 | } |
| 65f38f15 | 14983 | } |
| 5bd4f169 AM |
14984 | break; |
| 14985 | ||
| 65f38f15 AM |
14986 | case R_PPC64_COPY: |
| 14987 | case R_PPC64_GLOB_DAT: | |
| 14988 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14989 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14990 | case R_PPC64_RELATIVE: |
| 14991 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14992 | files. */ | |
| ae9a127f | 14993 | /* Fall through. */ |
| 65f38f15 AM |
14994 | |
| 14995 | case R_PPC64_PLTGOT16: | |
| 14996 | case R_PPC64_PLTGOT16_DS: | |
| 14997 | case R_PPC64_PLTGOT16_HA: | |
| 14998 | case R_PPC64_PLTGOT16_HI: | |
| 14999 | case R_PPC64_PLTGOT16_LO: | |
| 15000 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15001 | case R_PPC64_PLTREL32: | |
| 15002 | case R_PPC64_PLTREL64: | |
| 15003 | /* These ones haven't been implemented yet. */ | |
| 15004 | ||
| 25f53a85 | 15005 | info->callbacks->einfo |
| 695344c0 | 15006 | /* xgettext:c-format */ |
| bc30df16 | 15007 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 15008 | input_bfd, |
| 4ce794b7 | 15009 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15010 | |
| 15011 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15012 | ret = FALSE; |
| c316a17c | 15013 | goto copy_reloc; |
| 65f38f15 | 15014 | } |
| 5bd4f169 | 15015 | |
| 67f0cbdb AM |
15016 | /* Multi-instruction sequences that access the TOC can be |
| 15017 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 15018 | to nop; addi rb,r2,x; */ | |
| 15019 | switch (r_type) | |
| 15020 | { | |
| 15021 | default: | |
| 15022 | break; | |
| 15023 | ||
| 15024 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15025 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15026 | case R_PPC64_GOT_TPREL16_HI: | |
| 15027 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15028 | case R_PPC64_GOT16_HI: | |
| 15029 | case R_PPC64_TOC16_HI: | |
| 15030 | /* These relocs would only be useful if building up an | |
| 15031 | offset to later add to r2, perhaps in an indexed | |
| 15032 | addressing mode instruction. Don't try to optimize. | |
| 15033 | Unfortunately, the possibility of someone building up an | |
| 15034 | offset like this or even with the HA relocs, means that | |
| 15035 | we need to check the high insn when optimizing the low | |
| 15036 | insn. */ | |
| 15037 | break; | |
| 15038 | ||
| 15039 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15040 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15041 | case R_PPC64_GOT_TPREL16_HA: | |
| 15042 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15043 | case R_PPC64_GOT16_HA: | |
| 15044 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15045 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15046 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15047 | { |
| 15048 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15049 | bfd_put_32 (input_bfd, NOP, p); | |
| 15050 | } | |
| 67f0cbdb AM |
15051 | break; |
| 15052 | ||
| 15053 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15054 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15055 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15056 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15057 | case R_PPC64_GOT16_LO: | |
| 15058 | case R_PPC64_GOT16_LO_DS: | |
| 15059 | case R_PPC64_TOC16_LO: | |
| 15060 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15061 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15062 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15063 | { |
| 15064 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15065 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15066 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15067 | { | |
| 15068 | /* Transform addic to addi when we change reg. */ | |
| 15069 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15070 | insn |= (14u << 26) | (2 << 16); | |
| 15071 | } | |
| 15072 | else | |
| 67f0cbdb | 15073 | { |
| 98528052 AM |
15074 | insn &= ~(0x1f << 16); |
| 15075 | insn |= 2 << 16; | |
| 67f0cbdb | 15076 | } |
| 560c8763 | 15077 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15078 | } |
| 15079 | break; | |
| 15080 | } | |
| 15081 | ||
| 65f38f15 | 15082 | /* Do any further special processing. */ |
| b80eed39 | 15083 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
15084 | switch (r_type) |
| 15085 | { | |
| 15086 | default: | |
| 15087 | break; | |
| 15088 | ||
| 25f23106 | 15089 | case R_PPC64_REL16_HA: |
| a680de9a | 15090 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15091 | case R_PPC64_ADDR16_HA: |
| 15092 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15093 | case R_PPC64_ADDR16_HIGHERA: |
| 15094 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15095 | case R_PPC64_TOC16_HA: |
| 15096 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15097 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15098 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15099 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15100 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15101 | case R_PPC64_DTPREL16_HA: |
| 15102 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15103 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15104 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15105 | /* It's just possible that this symbol is a weak symbol |
| 15106 | that's not actually defined anywhere. In that case, | |
| 15107 | 'sec' would be NULL, and we should leave the symbol | |
| 15108 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15109 | if (sec == NULL) |
| 15110 | break; | |
| 1a0670f3 | 15111 | /* Fall through. */ |
| 5c5f6e17 AM |
15112 | |
| 15113 | case R_PPC64_GOT16_HA: | |
| 15114 | case R_PPC64_PLTGOT16_HA: | |
| 15115 | case R_PPC64_PLT16_HA: | |
| 15116 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15117 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15118 | case R_PPC64_GOT_TPREL16_HA: | |
| 15119 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15120 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15121 | Bits 0:15 are not used. */ | |
| 15122 | addend += 0x8000; | |
| 65f38f15 AM |
15123 | break; |
| 15124 | ||
| 15125 | case R_PPC64_ADDR16_DS: | |
| 15126 | case R_PPC64_ADDR16_LO_DS: | |
| 15127 | case R_PPC64_GOT16_DS: | |
| 15128 | case R_PPC64_GOT16_LO_DS: | |
| 15129 | case R_PPC64_PLT16_LO_DS: | |
| 15130 | case R_PPC64_SECTOFF_DS: | |
| 15131 | case R_PPC64_SECTOFF_LO_DS: | |
| 15132 | case R_PPC64_TOC16_DS: | |
| 15133 | case R_PPC64_TOC16_LO_DS: | |
| 15134 | case R_PPC64_PLTGOT16_DS: | |
| 15135 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15136 | case R_PPC64_GOT_TPREL16_DS: |
| 15137 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15138 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15139 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15140 | case R_PPC64_TPREL16_DS: | |
| 15141 | case R_PPC64_TPREL16_LO_DS: | |
| 15142 | case R_PPC64_DTPREL16_DS: | |
| 15143 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15144 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15145 | mask = 3; | |
| a680de9a PB |
15146 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15147 | the value must be a multiple of 16. This is somewhat of | |
| 15148 | a hack, but the "correct" way to do this by defining _DQ | |
| 15149 | forms of all the _DS relocs bloats all reloc switches in | |
| 15150 | this file. It doesn't make much sense to use these | |
| 15151 | relocs in data, so testing the insn should be safe. */ | |
| 15152 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15153 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15154 | mask = 15; |
| a680de9a PB |
15155 | relocation += addend; |
| 15156 | addend = insn & (mask ^ 3); | |
| 15157 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15158 | { |
| a680de9a | 15159 | relocation ^= relocation & mask; |
| 25f53a85 | 15160 | info->callbacks->einfo |
| 695344c0 | 15161 | /* xgettext:c-format */ |
| 8de848d8 | 15162 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15163 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15164 | howto->name, |
| adadcc0c | 15165 | mask + 1); |
| 65f38f15 | 15166 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15167 | ret = FALSE; |
| c316a17c | 15168 | goto copy_reloc; |
| 65f38f15 AM |
15169 | } |
| 15170 | break; | |
| 5bd4f169 AM |
15171 | } |
| 15172 | ||
| 239e1f3a AM |
15173 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15174 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15175 | not process them. */ | |
| 65f38f15 | 15176 | if (unresolved_reloc |
| 239e1f3a | 15177 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15178 | && h->elf.def_dynamic) |
| 15179 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15180 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15181 | { |
| 25f53a85 | 15182 | info->callbacks->einfo |
| 695344c0 | 15183 | /* xgettext:c-format */ |
| bc30df16 | 15184 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15185 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15186 | howto->name, |
| 039b3fef | 15187 | h->elf.root.root.string); |
| b34976b6 | 15188 | ret = FALSE; |
| 9c07fe7c | 15189 | } |
| 5bd4f169 | 15190 | |
| b80eed39 AM |
15191 | /* 16-bit fields in insns mostly have signed values, but a |
| 15192 | few insns have 16-bit unsigned values. Really, we should | |
| 15193 | have different reloc types. */ | |
| 15194 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15195 | && howto->dst_mask == 0xffff | |
| 15196 | && (input_section->flags & SEC_CODE) != 0) | |
| 15197 | { | |
| 15198 | enum complain_overflow complain = complain_overflow_signed; | |
| 15199 | ||
| 15200 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15201 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15202 | complain = complain_overflow_bitfield; | |
| 15203 | else if (howto->rightshift == 0 | |
| 15204 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15205 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15206 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15207 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15208 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15209 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15210 | complain = complain_overflow_unsigned; |
| 15211 | if (howto->complain_on_overflow != complain) | |
| 15212 | { | |
| 15213 | alt_howto = *howto; | |
| 15214 | alt_howto.complain_on_overflow = complain; | |
| 15215 | howto = &alt_howto; | |
| 15216 | } | |
| 15217 | } | |
| 15218 | ||
| a680de9a PB |
15219 | if (r_type == R_PPC64_REL16DX_HA) |
| 15220 | { | |
| 15221 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15222 | if (rel->r_offset + 4 > input_section->size) | |
| 15223 | r = bfd_reloc_outofrange; | |
| 15224 | else | |
| 15225 | { | |
| 15226 | relocation += addend; | |
| 15227 | relocation -= (rel->r_offset | |
| 15228 | + input_section->output_offset | |
| 15229 | + input_section->output_section->vma); | |
| 15230 | relocation = (bfd_signed_vma) relocation >> 16; | |
| 15231 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 15232 | insn &= ~0x1fffc1; | |
| 15233 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
| 15234 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
| 15235 | r = bfd_reloc_ok; | |
| 15236 | if (relocation + 0x8000 > 0xffff) | |
| 15237 | r = bfd_reloc_overflow; | |
| 15238 | } | |
| 15239 | } | |
| 15240 | else | |
| 15241 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15242 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15243 | |
| ef60b7ff | 15244 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15245 | { |
| bc30df16 | 15246 | char *more_info = NULL; |
| b80eed39 | 15247 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15248 | |
| 15249 | if (reloc_dest != DEST_NORMAL) | |
| 15250 | { | |
| 15251 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15252 | if (more_info != NULL) | |
| 15253 | { | |
| 15254 | strcpy (more_info, reloc_name); | |
| 15255 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15256 | ? " (OPD)" : " (stub)")); | |
| 15257 | reloc_name = more_info; | |
| 15258 | } | |
| 15259 | } | |
| 15260 | ||
| cd27b276 | 15261 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15262 | { |
| 8131c122 AM |
15263 | /* On code like "if (foo) foo();" don't report overflow |
| 15264 | on a branch to zero when foo is undefined. */ | |
| 15265 | if (!warned | |
| 15266 | && (reloc_dest == DEST_STUB | |
| 15267 | || !(h != NULL | |
| 15268 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15269 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15270 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15271 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15272 | sym_name, reloc_name, | |
| 15273 | orig_rel.r_addend, | |
| 15274 | input_bfd, input_section, | |
| 15275 | rel->r_offset); | |
| ef60b7ff AM |
15276 | } |
| 15277 | else | |
| 15278 | { | |
| 25f53a85 | 15279 | info->callbacks->einfo |
| 695344c0 | 15280 | /* xgettext:c-format */ |
| bc30df16 | 15281 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 15282 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15283 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15284 | ret = FALSE; |
| ef60b7ff | 15285 | } |
| bc30df16 AM |
15286 | if (more_info != NULL) |
| 15287 | free (more_info); | |
| 5bd4f169 | 15288 | } |
| c316a17c AM |
15289 | copy_reloc: |
| 15290 | if (wrel != rel) | |
| 15291 | *wrel = *rel; | |
| 15292 | } | |
| 15293 | ||
| 15294 | if (wrel != rel) | |
| 15295 | { | |
| 15296 | Elf_Internal_Shdr *rel_hdr; | |
| 15297 | size_t deleted = rel - wrel; | |
| 15298 | ||
| 15299 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15300 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15301 | if (rel_hdr->sh_size == 0) | |
| 15302 | { | |
| 15303 | /* It is too late to remove an empty reloc section. Leave | |
| 15304 | one NONE reloc. | |
| 15305 | ??? What is wrong with an empty section??? */ | |
| 15306 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15307 | deleted -= 1; | |
| 15308 | } | |
| 15309 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15310 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15311 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15312 | } |
| 15313 | ||
| 645ea6a9 AM |
15314 | /* If we're emitting relocations, then shortly after this function |
| 15315 | returns, reloc offsets and addends for this section will be | |
| 15316 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15317 | file rather than the input. Save a copy of the relocs for |
| 15318 | opd_entry_value. */ | |
| 0e1862bb | 15319 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15320 | { |
| 15321 | bfd_size_type amt; | |
| 15322 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15323 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15324 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15325 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15326 | if (rel == NULL) |
| 15327 | return FALSE; | |
| 15328 | memcpy (rel, relocs, amt); | |
| 15329 | } | |
| 5bd4f169 AM |
15330 | return ret; |
| 15331 | } | |
| 15332 | ||
| 754021d0 AM |
15333 | /* Adjust the value of any local symbols in opd sections. */ |
| 15334 | ||
| 6e0b88f1 | 15335 | static int |
| 754021d0 AM |
15336 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15337 | const char *name ATTRIBUTE_UNUSED, | |
| 15338 | Elf_Internal_Sym *elfsym, | |
| 15339 | asection *input_sec, | |
| 15340 | struct elf_link_hash_entry *h) | |
| 15341 | { | |
| 74f0fb50 AM |
15342 | struct _opd_sec_data *opd; |
| 15343 | long adjust; | |
| 754021d0 AM |
15344 | bfd_vma value; |
| 15345 | ||
| 4025353c | 15346 | if (h != NULL) |
| 6e0b88f1 | 15347 | return 1; |
| 4025353c | 15348 | |
| 74f0fb50 AM |
15349 | opd = get_opd_info (input_sec); |
| 15350 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15351 | return 1; |
| 754021d0 AM |
15352 | |
| 15353 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15354 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15355 | value -= input_sec->output_section->vma; |
| 15356 | ||
| 51aecdc5 | 15357 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15358 | if (adjust == -1) |
| 6e0b88f1 AM |
15359 | return 2; |
| 15360 | ||
| 15361 | elfsym->st_value += adjust; | |
| 15362 | return 1; | |
| 754021d0 AM |
15363 | } |
| 15364 | ||
| 5bd4f169 AM |
15365 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15366 | dynamic sections here. */ | |
| 15367 | ||
| b34976b6 | 15368 | static bfd_boolean |
| 4ce794b7 AM |
15369 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15370 | struct bfd_link_info *info, | |
| 15371 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 15372 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 15373 | { |
| 65f38f15 | 15374 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15375 | struct plt_entry *ent; |
| 15376 | Elf_Internal_Rela rela; | |
| 15377 | bfd_byte *loc; | |
| 5bd4f169 | 15378 | |
| 65f38f15 | 15379 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15380 | if (htab == NULL) |
| 15381 | return FALSE; | |
| 5bd4f169 | 15382 | |
| 8387904d AM |
15383 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15384 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15385 | { | |
| 15386 | /* This symbol has an entry in the procedure linkage | |
| 15387 | table. Set it up. */ | |
| e054468f AM |
15388 | if (!htab->elf.dynamic_sections_created |
| 15389 | || h->dynindx == -1) | |
| 15390 | { | |
| 15391 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15392 | && h->def_regular | |
| 15393 | && (h->root.type == bfd_link_hash_defined | |
| 15394 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15395 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15396 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15397 | + ent->plt.offset); |
| ee67d69a AM |
15398 | if (htab->opd_abi) |
| 15399 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15400 | else | |
| 15401 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15402 | rela.r_addend = (h->root.u.def.value |
| 15403 | + h->root.u.def.section->output_offset | |
| 15404 | + h->root.u.def.section->output_section->vma | |
| 15405 | + ent->addend); | |
| 33e44f2e AM |
15406 | loc = (htab->elf.irelplt->contents |
| 15407 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15408 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
15409 | } |
| 15410 | else | |
| 15411 | { | |
| 33e44f2e AM |
15412 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15413 | + htab->elf.splt->output_offset | |
| 25f23106 | 15414 | + ent->plt.offset); |
| e054468f AM |
15415 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15416 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15417 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15418 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15419 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 15420 | } |
| 8387904d | 15421 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15422 | |
| 15423 | if (!htab->opd_abi) | |
| 15424 | { | |
| 15425 | if (!h->def_regular) | |
| 15426 | { | |
| 15427 | /* Mark the symbol as undefined, rather than as | |
| 15428 | defined in glink. Leave the value if there were | |
| 15429 | any relocations where pointer equality matters | |
| 15430 | (this is a clue for the dynamic linker, to make | |
| 15431 | function pointer comparisons work between an | |
| 15432 | application and shared library), otherwise set it | |
| 15433 | to zero. */ | |
| 15434 | sym->st_shndx = SHN_UNDEF; | |
| 15435 | if (!h->pointer_equality_needed) | |
| 15436 | sym->st_value = 0; | |
| 15437 | else if (!h->ref_regular_nonweak) | |
| 15438 | { | |
| 15439 | /* This breaks function pointer comparisons, but | |
| 15440 | that is better than breaking tests for a NULL | |
| 15441 | function pointer. */ | |
| 15442 | sym->st_value = 0; | |
| 15443 | } | |
| 15444 | } | |
| 15445 | } | |
| 8387904d | 15446 | } |
| 5bd4f169 | 15447 | |
| f5385ebf | 15448 | if (h->needs_copy) |
| 5bd4f169 | 15449 | { |
| 65f38f15 | 15450 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15451 | |
| 65f38f15 AM |
15452 | if (h->dynindx == -1 |
| 15453 | || (h->root.type != bfd_link_hash_defined | |
| 15454 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15455 | || htab->relbss == NULL) |
| 65f38f15 | 15456 | abort (); |
| 5bd4f169 AM |
15457 | |
| 15458 | rela.r_offset = (h->root.u.def.value | |
| 15459 | + h->root.u.def.section->output_section->vma | |
| 15460 | + h->root.u.def.section->output_offset); | |
| 15461 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15462 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15463 | loc = htab->relbss->contents; |
| 15464 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15465 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15466 | } |
| 15467 | ||
| b34976b6 | 15468 | return TRUE; |
| 5bd4f169 AM |
15469 | } |
| 15470 | ||
| 65f38f15 AM |
15471 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15472 | dynamic linker, before writing them out. */ | |
| 15473 | ||
| 15474 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15475 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15476 | const asection *rel_sec, | |
| 15477 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15478 | { |
| 04c9666a | 15479 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15480 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15481 | ||
| 33e44f2e | 15482 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15483 | return reloc_class_ifunc; |
| a33d1f77 | 15484 | |
| 4ce794b7 | 15485 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15486 | switch (r_type) |
| 65f38f15 AM |
15487 | { |
| 15488 | case R_PPC64_RELATIVE: | |
| 15489 | return reloc_class_relative; | |
| 15490 | case R_PPC64_JMP_SLOT: | |
| 15491 | return reloc_class_plt; | |
| 15492 | case R_PPC64_COPY: | |
| 15493 | return reloc_class_copy; | |
| 15494 | default: | |
| 15495 | return reloc_class_normal; | |
| 15496 | } | |
| 15497 | } | |
| 15498 | ||
| 5bd4f169 AM |
15499 | /* Finish up the dynamic sections. */ |
| 15500 | ||
| b34976b6 | 15501 | static bfd_boolean |
| 4ce794b7 AM |
15502 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15503 | struct bfd_link_info *info) | |
| 5bd4f169 | 15504 | { |
| 65f38f15 AM |
15505 | struct ppc_link_hash_table *htab; |
| 15506 | bfd *dynobj; | |
| 5bd4f169 | 15507 | asection *sdyn; |
| 5bd4f169 | 15508 | |
| 65f38f15 | 15509 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15510 | if (htab == NULL) |
| 15511 | return FALSE; | |
| 15512 | ||
| 65f38f15 | 15513 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15514 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15515 | |
| 65f38f15 | 15516 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15517 | { |
| 5bd4f169 AM |
15518 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15519 | ||
| 33e44f2e | 15520 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15521 | abort (); |
| 5bd4f169 AM |
15522 | |
| 15523 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15524 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15525 | for (; dyncon < dynconend; dyncon++) |
| 15526 | { | |
| 15527 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15528 | asection *s; |
| 5bd4f169 AM |
15529 | |
| 15530 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15531 | ||
| 15532 | switch (dyn.d_tag) | |
| 15533 | { | |
| 65f38f15 AM |
15534 | default: |
| 15535 | continue; | |
| 5bd4f169 | 15536 | |
| 5d1634d7 | 15537 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15538 | s = htab->glink; |
| 6348e046 | 15539 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15540 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15541 | of glink rather than the first entry point, which is | |
| 15542 | what ld.so needs, and now have a bigger stub to | |
| 15543 | support automatic multiple TOCs. */ | |
| b9e5796b | 15544 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15545 | break; |
| 15546 | ||
| 19397422 AM |
15547 | case DT_PPC64_OPD: |
| 15548 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15549 | if (s == NULL) |
| 15550 | continue; | |
| 15551 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15552 | break; |
| 15553 | ||
| e8910a83 AM |
15554 | case DT_PPC64_OPT: |
| 15555 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15556 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15557 | break; | |
| 15558 | ||
| 19397422 AM |
15559 | case DT_PPC64_OPDSZ: |
| 15560 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15561 | if (s == NULL) |
| 15562 | continue; | |
| eea6121a | 15563 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15564 | break; |
| 15565 | ||
| 65f38f15 | 15566 | case DT_PLTGOT: |
| 33e44f2e | 15567 | s = htab->elf.splt; |
| 6348e046 | 15568 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15569 | break; |
| 15570 | ||
| 15571 | case DT_JMPREL: | |
| 33e44f2e | 15572 | s = htab->elf.srelplt; |
| 6348e046 | 15573 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15574 | break; |
| 5bd4f169 | 15575 | |
| 65f38f15 | 15576 | case DT_PLTRELSZ: |
| 33e44f2e | 15577 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15578 | break; |
| 5bd4f169 | 15579 | } |
| 5bd4f169 | 15580 | |
| 65f38f15 | 15581 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15582 | } |
| 5bd4f169 AM |
15583 | } |
| 15584 | ||
| 33e44f2e | 15585 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15586 | { |
| 15587 | /* Fill in the first entry in the global offset table. | |
| 15588 | We use it to hold the link-time TOCbase. */ | |
| 15589 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15590 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15591 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15592 | |
| 15593 | /* Set .got entry size. */ | |
| 33e44f2e | 15594 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15595 | } |
| 15596 | ||
| 33e44f2e | 15597 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15598 | { |
| 15599 | /* Set .plt entry size. */ | |
| 33e44f2e | 15600 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15601 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15602 | } |
| 15603 | ||
| 84f5d08e AM |
15604 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15605 | brlt ourselves if emitrelocations. */ | |
| 15606 | if (htab->brlt != NULL | |
| 15607 | && htab->brlt->reloc_count != 0 | |
| 15608 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15609 | htab->brlt, | |
| d4730f92 | 15610 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15611 | elf_section_data (htab->brlt)->relocs, |
| 15612 | NULL)) | |
| 15613 | return FALSE; | |
| 15614 | ||
| 176a0d42 AM |
15615 | if (htab->glink != NULL |
| 15616 | && htab->glink->reloc_count != 0 | |
| 15617 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15618 | htab->glink, | |
| d4730f92 | 15619 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15620 | elf_section_data (htab->glink)->relocs, |
| 15621 | NULL)) | |
| 15622 | return FALSE; | |
| 15623 | ||
| 58d180e8 | 15624 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15625 | && htab->glink_eh_frame->size != 0) |
| 15626 | { | |
| 15627 | bfd_vma val; | |
| 15628 | bfd_byte *p; | |
| 15629 | asection *stub_sec; | |
| 15630 | ||
| 15631 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15632 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15633 | stub_sec != NULL; | |
| 15634 | stub_sec = stub_sec->next) | |
| 15635 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15636 | { | |
| 15637 | /* FDE length. */ | |
| 15638 | p += 4; | |
| 15639 | /* CIE pointer. */ | |
| 15640 | p += 4; | |
| 15641 | /* Offset to stub section. */ | |
| 15642 | val = (stub_sec->output_section->vma | |
| 15643 | + stub_sec->output_offset); | |
| 15644 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15645 | + htab->glink_eh_frame->output_offset | |
| 15646 | + (p - htab->glink_eh_frame->contents)); | |
| 15647 | if (val + 0x80000000 > 0xffffffff) | |
| 15648 | { | |
| 15649 | info->callbacks->einfo | |
| 15650 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15651 | stub_sec->name); | |
| 15652 | return FALSE; | |
| 15653 | } | |
| 15654 | bfd_put_32 (dynobj, val, p); | |
| 15655 | p += 4; | |
| 15656 | /* stub section size. */ | |
| 15657 | p += 4; | |
| 15658 | /* Augmentation. */ | |
| 15659 | p += 1; | |
| 15660 | /* Pad. */ | |
| 15661 | p += 7; | |
| 15662 | } | |
| 15663 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15664 | { | |
| 15665 | /* FDE length. */ | |
| 15666 | p += 4; | |
| 15667 | /* CIE pointer. */ | |
| 15668 | p += 4; | |
| 15669 | /* Offset to .glink. */ | |
| 15670 | val = (htab->glink->output_section->vma | |
| 15671 | + htab->glink->output_offset | |
| 15672 | + 8); | |
| 15673 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15674 | + htab->glink_eh_frame->output_offset | |
| 15675 | + (p - htab->glink_eh_frame->contents)); | |
| 15676 | if (val + 0x80000000 > 0xffffffff) | |
| 15677 | { | |
| 15678 | info->callbacks->einfo | |
| 15679 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15680 | htab->glink->name); | |
| 15681 | return FALSE; | |
| 15682 | } | |
| 15683 | bfd_put_32 (dynobj, val, p); | |
| 15684 | p += 4; | |
| 15685 | /* .glink size. */ | |
| 15686 | p += 4; | |
| 15687 | /* Augmentation. */ | |
| 15688 | p += 1; | |
| 15689 | /* Ops. */ | |
| 15690 | p += 7; | |
| 15691 | } | |
| 15692 | ||
| 15693 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15694 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15695 | htab->glink_eh_frame, | |
| 15696 | htab->glink_eh_frame->contents)) | |
| 15697 | return FALSE; | |
| 15698 | } | |
| 58d180e8 | 15699 | |
| e717da7e | 15700 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15701 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15702 | bfd. */ | |
| c72f2fb2 | 15703 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15704 | { |
| 15705 | asection *s; | |
| 7b53ace3 | 15706 | |
| 0c8d6e5c | 15707 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15708 | continue; |
| 15709 | ||
| e717da7e AM |
15710 | s = ppc64_elf_tdata (dynobj)->got; |
| 15711 | if (s != NULL | |
| eea6121a | 15712 | && s->size != 0 |
| e717da7e AM |
15713 | && s->output_section != bfd_abs_section_ptr |
| 15714 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15715 | s->contents, s->output_offset, | |
| eea6121a | 15716 | s->size)) |
| e717da7e AM |
15717 | return FALSE; |
| 15718 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15719 | if (s != NULL | |
| eea6121a | 15720 | && s->size != 0 |
| e717da7e AM |
15721 | && s->output_section != bfd_abs_section_ptr |
| 15722 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15723 | s->contents, s->output_offset, | |
| eea6121a | 15724 | s->size)) |
| e717da7e AM |
15725 | return FALSE; |
| 15726 | } | |
| f6c52c13 | 15727 | |
| b34976b6 | 15728 | return TRUE; |
| 5bd4f169 AM |
15729 | } |
| 15730 | ||
| 5bd4f169 | 15731 | #include "elf64-target.h" |
| 7b8e7dad AM |
15732 | |
| 15733 | /* FreeBSD support */ | |
| 15734 | ||
| 15735 | #undef TARGET_LITTLE_SYM | |
| 15736 | #undef TARGET_LITTLE_NAME | |
| 15737 | ||
| 15738 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15739 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15740 | #undef TARGET_BIG_NAME |
| 15741 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15742 | ||
| 15743 | #undef ELF_OSABI | |
| 15744 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15745 | ||
| 15746 | #undef elf64_bed | |
| 15747 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15748 | ||
| 15749 | #include "elf64-target.h" | |
| 15750 |