projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 2571583a | 2 | Copyright (C) 1999-2017 Free Software Foundation, Inc. |
| 5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 4 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 5 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 6 | |
| ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 8 | |
| ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 12 | (at your option) any later version. |
| 5bd4f169 | 13 | |
| ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| 5bd4f169 | 18 | |
| 4ce794b7 AM |
19 | You should have received a copy of the GNU General Public License along |
| 20 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 21 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 22 | |
| cd123cb7 | 23 | |
| 4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
| 25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 27 | |
| 3db64b00 | 28 | #include "sysdep.h" |
| 183e98be | 29 | #include <stdarg.h> |
| 5bd4f169 | 30 | #include "bfd.h" |
| 5bd4f169 AM |
31 | #include "bfdlink.h" |
| 32 | #include "libbfd.h" | |
| 33 | #include "elf-bfd.h" | |
| 04c9666a | 34 | #include "elf/ppc64.h" |
| 5d1634d7 | 35 | #include "elf64-ppc.h" |
| 58d180e8 | 36 | #include "dwarf2.h" |
| 5bd4f169 | 37 | |
| 805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
40 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 54 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 55 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 56 | static bfd_vma opd_entry_value |
| aef36ac1 | 57 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 58 | |
| 6d00b590 | 59 | #define TARGET_LITTLE_SYM powerpc_elf64_le_vec |
| ad8e1ba5 | 60 | #define TARGET_LITTLE_NAME "elf64-powerpcle" |
| 6d00b590 | 61 | #define TARGET_BIG_SYM powerpc_elf64_vec |
| ad8e1ba5 AM |
62 | #define TARGET_BIG_NAME "elf64-powerpc" |
| 63 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 64 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
65 | #define ELF_MACHINE_CODE EM_PPC64 |
| 66 | #define ELF_MAXPAGESIZE 0x10000 | |
| 04c6a44c | 67 | #define ELF_COMMONPAGESIZE 0x10000 |
| ad8e1ba5 AM |
68 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 69 | ||
| 70 | #define elf_backend_want_got_sym 0 | |
| 71 | #define elf_backend_want_plt_sym 0 | |
| 72 | #define elf_backend_plt_alignment 3 | |
| 73 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 74 | #define elf_backend_got_header_size 8 |
| 5474d94f | 75 | #define elf_backend_want_dynrelro 1 |
| ad8e1ba5 AM |
76 | #define elf_backend_can_gc_sections 1 |
| 77 | #define elf_backend_can_refcount 1 | |
| 78 | #define elf_backend_rela_normal 1 | |
| 64f52338 | 79 | #define elf_backend_dtrel_excludes_plt 1 |
| 6bfdb61b | 80 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 81 | |
| e717da7e | 82 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 83 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 84 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
85 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 86 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
87 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 88 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 89 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 90 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| 8c5b4e52 | 91 | #define bfd_elf64_bfd_gc_sections ppc64_elf_gc_sections |
| ad8e1ba5 AM |
92 | |
| 93 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
94 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 95 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 96 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| 9d19e4fd | 97 | #define elf_backend_create_dynamic_sections _bfd_elf_create_dynamic_sections |
| ad8e1ba5 | 98 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol |
| 555cd476 | 99 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 100 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 101 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 102 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 103 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| c0e331c7 | 104 | #define elf_backend_relocs_compatible _bfd_elf_relocs_compatible |
| 74f0fb50 | 105 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 106 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 | 107 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| ad8e1ba5 AM |
108 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol |
| 109 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 110 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
111 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 112 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 113 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 114 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 115 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
116 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 117 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 118 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 119 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 120 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 121 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 122 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| 8c5b4e52 | 123 | #define elf_backend_merge_symbol ppc64_elf_merge_symbol |
| bce964aa | 124 | #define elf_backend_get_reloc_section bfd_get_section_by_name |
| ad8e1ba5 | 125 | |
| 5bd4f169 AM |
126 | /* The name of the dynamic interpreter. This is put in the .interp |
| 127 | section. */ | |
| 128 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 129 | ||
| 130 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 131 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
132 | |
| 133 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 134 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 135 | |
| a078d95a AM |
136 | /* Offsets to some stack save slots. */ |
| 137 | #define STK_LR 16 | |
| 138 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 139 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
140 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 141 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 142 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 143 | ||
| 5bd4f169 | 144 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 145 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
146 | /* TOC base alignment. */ |
| 147 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
148 | |
| 149 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 150 | #define TP_OFFSET 0x7000 | |
| 151 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 152 | |
| ad8e1ba5 AM |
153 | /* .plt call stub instructions. The normal stub is like this, but |
| 154 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 155 | insert an addi to adjust r11. */ |
| a078d95a | 156 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
157 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 158 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 159 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 160 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 161 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
162 | #define BCTR 0x4e800420 /* bctr */ |
| 163 | ||
| 71a39c98 | 164 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
165 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 166 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 167 | ||
| 71a39c98 AM |
168 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 169 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 170 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
171 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 172 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 173 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 174 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 175 | ||
| 71a39c98 | 176 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
177 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 178 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 179 | ||
| a078d95a | 180 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 006589cf AM |
181 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ |
| 182 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 183 | |
| 006589cf AM |
184 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 185 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ | |
| 186 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d AM |
187 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 188 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 189 | ||
| ee4bf8d2 | 190 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 191 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
192 | /* 0: */ |
| 193 | /* .quad plt0-1f */ | |
| 194 | /* __glink: */ | |
| 195 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 196 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 197 | /* 1: */ | |
| 198 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 199 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 200 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
201 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 202 | /* ld %12,0(%11) */ | |
| 203 | /* ld %2,8(%11) */ | |
| 204 | /* mtctr %12 */ | |
| 205 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 206 | /* bctr */ |
| b9e5796b AM |
207 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 208 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 209 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 210 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 211 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
212 | |
| 213 | /* Pad with this. */ | |
| 214 | #define NOP 0x60000000 | |
| 215 | ||
| 721956f4 AM |
216 | /* Some other nops. */ |
| 217 | #define CROR_151515 0x4def7b82 | |
| 218 | #define CROR_313131 0x4ffffb82 | |
| 219 | ||
| cedb70c5 | 220 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
221 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 222 | #define B_DOT 0x48000000 /* b . */ | |
| 223 | ||
| 224 | /* After that, we need two instructions to load the index, followed by | |
| 225 | a branch. */ | |
| 226 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 227 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 228 | |
| deb0e272 AM |
229 | /* Instructions used by the save and restore reg functions. */ |
| 230 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 231 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 232 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 233 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
234 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 235 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
236 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 237 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 238 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 239 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
240 | #define BLR 0x4e800020 /* blr */ |
| 241 | ||
| 41bd81ab AM |
242 | /* Since .opd is an array of descriptors and each entry will end up |
| 243 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 244 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 245 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
246 | #ifndef NO_OPD_RELOCS |
| 247 | #define NO_OPD_RELOCS 0 | |
| 248 | #endif | |
| 810d4e75 | 249 | |
| a4b6fadd AM |
250 | #ifndef ARRAY_SIZE |
| 251 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 252 | #endif | |
| 253 | ||
| 810d4e75 AM |
254 | static inline int |
| 255 | abiversion (bfd *abfd) | |
| 256 | { | |
| 257 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 258 | } | |
| 259 | ||
| 260 | static inline void | |
| 261 | set_abiversion (bfd *abfd, int ver) | |
| 262 | { | |
| 263 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 264 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 265 | } | |
| 5bd4f169 | 266 | \f |
| f5e87a1d | 267 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 268 | |
| 5bd4f169 | 269 | /* Relocation HOWTO's. */ |
| 04c9666a | 270 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
271 | |
| 272 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 273 | /* This reloc does nothing. */ | |
| 274 | HOWTO (R_PPC64_NONE, /* type */ | |
| 275 | 0, /* rightshift */ | |
| 6346d5ca AM |
276 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 277 | 0, /* bitsize */ | |
| b34976b6 | 278 | FALSE, /* pc_relative */ |
| 5bd4f169 | 279 | 0, /* bitpos */ |
| f5e87a1d | 280 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
281 | bfd_elf_generic_reloc, /* special_function */ |
| 282 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 283 | FALSE, /* partial_inplace */ |
| d006db6c | 284 | 0, /* src_mask */ |
| 5bd4f169 | 285 | 0, /* dst_mask */ |
| b34976b6 | 286 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
287 | |
| 288 | /* A standard 32 bit relocation. */ | |
| 289 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 290 | 0, /* rightshift */ | |
| 291 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 292 | 32, /* bitsize */ | |
| b34976b6 | 293 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
294 | 0, /* bitpos */ |
| 295 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 296 | bfd_elf_generic_reloc, /* special_function */ | |
| 297 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 298 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
299 | 0, /* src_mask */ |
| 300 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 301 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
302 | |
| 303 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 304 | FIXME: we don't check that, we just clear them. */ | |
| 305 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 306 | 0, /* rightshift */ | |
| 307 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 308 | 26, /* bitsize */ | |
| b34976b6 | 309 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
310 | 0, /* bitpos */ |
| 311 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 312 | bfd_elf_generic_reloc, /* special_function */ | |
| 313 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 314 | FALSE, /* partial_inplace */ |
| d006db6c | 315 | 0, /* src_mask */ |
| f5e87a1d | 316 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 317 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
318 | |
| 319 | /* A standard 16 bit relocation. */ | |
| 320 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 321 | 0, /* rightshift */ | |
| 322 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 323 | 16, /* bitsize */ | |
| b34976b6 | 324 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
325 | 0, /* bitpos */ |
| 326 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 327 | bfd_elf_generic_reloc, /* special_function */ | |
| 328 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 329 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
330 | 0, /* src_mask */ |
| 331 | 0xffff, /* dst_mask */ | |
| b34976b6 | 332 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
333 | |
| 334 | /* A 16 bit relocation without overflow. */ | |
| 335 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 336 | 0, /* rightshift */ | |
| 337 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 338 | 16, /* bitsize */ | |
| b34976b6 | 339 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
340 | 0, /* bitpos */ |
| 341 | complain_overflow_dont,/* complain_on_overflow */ | |
| 342 | bfd_elf_generic_reloc, /* special_function */ | |
| 343 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 344 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
345 | 0, /* src_mask */ |
| 346 | 0xffff, /* dst_mask */ | |
| b34976b6 | 347 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
348 | |
| 349 | /* Bits 16-31 of an address. */ | |
| 350 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 351 | 16, /* rightshift */ | |
| 352 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 353 | 16, /* bitsize */ | |
| b34976b6 | 354 | FALSE, /* pc_relative */ |
| 5bd4f169 | 355 | 0, /* bitpos */ |
| f9c6b907 | 356 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
357 | bfd_elf_generic_reloc, /* special_function */ |
| 358 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 359 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
360 | 0, /* src_mask */ |
| 361 | 0xffff, /* dst_mask */ | |
| b34976b6 | 362 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
363 | |
| 364 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 365 | bits, treated as a signed number, is negative. */ | |
| 366 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 367 | 16, /* rightshift */ | |
| 368 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 369 | 16, /* bitsize */ | |
| b34976b6 | 370 | FALSE, /* pc_relative */ |
| 5bd4f169 | 371 | 0, /* bitpos */ |
| f9c6b907 | 372 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 373 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 374 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 375 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
376 | 0, /* src_mask */ |
| 377 | 0xffff, /* dst_mask */ | |
| b34976b6 | 378 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
379 | |
| 380 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 381 | FIXME: we don't check that, we just clear them. */ | |
| 382 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 383 | 0, /* rightshift */ | |
| 384 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 385 | 16, /* bitsize */ | |
| b34976b6 | 386 | FALSE, /* pc_relative */ |
| 5bd4f169 | 387 | 0, /* bitpos */ |
| b80eed39 | 388 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 389 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 390 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 391 | FALSE, /* partial_inplace */ |
| d006db6c | 392 | 0, /* src_mask */ |
| f5e87a1d | 393 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 394 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
395 | |
| 396 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 397 | indicate that the branch is expected to be taken. The lower two | |
| 398 | bits must be zero. */ | |
| 399 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 400 | 0, /* rightshift */ | |
| 401 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 402 | 16, /* bitsize */ | |
| b34976b6 | 403 | FALSE, /* pc_relative */ |
| 5bd4f169 | 404 | 0, /* bitpos */ |
| b80eed39 | 405 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 406 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 407 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 408 | FALSE, /* partial_inplace */ |
| d006db6c | 409 | 0, /* src_mask */ |
| f5e87a1d | 410 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 411 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
412 | |
| 413 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 414 | indicate that the branch is not expected to be taken. The lower | |
| 415 | two bits must be zero. */ | |
| 416 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 417 | 0, /* rightshift */ | |
| 418 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 419 | 16, /* bitsize */ | |
| b34976b6 | 420 | FALSE, /* pc_relative */ |
| 5bd4f169 | 421 | 0, /* bitpos */ |
| b80eed39 | 422 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 423 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 424 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 425 | FALSE, /* partial_inplace */ |
| d006db6c | 426 | 0, /* src_mask */ |
| f5e87a1d | 427 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 428 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
429 | |
| 430 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 431 | HOWTO (R_PPC64_REL24, /* type */ | |
| 432 | 0, /* rightshift */ | |
| 433 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 434 | 26, /* bitsize */ | |
| b34976b6 | 435 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
436 | 0, /* bitpos */ |
| 437 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 438 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 439 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 440 | FALSE, /* partial_inplace */ |
| d006db6c | 441 | 0, /* src_mask */ |
| f5e87a1d | 442 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 443 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
444 | |
| 445 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 446 | HOWTO (R_PPC64_REL14, /* type */ | |
| 447 | 0, /* rightshift */ | |
| 448 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 449 | 16, /* bitsize */ | |
| b34976b6 | 450 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
451 | 0, /* bitpos */ |
| 452 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 453 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 454 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 455 | FALSE, /* partial_inplace */ |
| d006db6c | 456 | 0, /* src_mask */ |
| f5e87a1d | 457 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 458 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
459 | |
| 460 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 461 | the branch is expected to be taken. The lower two bits must be | |
| 462 | zero. */ | |
| 463 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 464 | 0, /* rightshift */ | |
| 465 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 466 | 16, /* bitsize */ | |
| b34976b6 | 467 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
468 | 0, /* bitpos */ |
| 469 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 470 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 471 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 472 | FALSE, /* partial_inplace */ |
| d006db6c | 473 | 0, /* src_mask */ |
| f5e87a1d | 474 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 475 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
476 | |
| 477 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 478 | the branch is not expected to be taken. The lower two bits must | |
| 479 | be zero. */ | |
| 480 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 481 | 0, /* rightshift */ | |
| 482 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 483 | 16, /* bitsize */ | |
| b34976b6 | 484 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
485 | 0, /* bitpos */ |
| 486 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 487 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 488 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 489 | FALSE, /* partial_inplace */ |
| d006db6c | 490 | 0, /* src_mask */ |
| f5e87a1d | 491 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 492 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
493 | |
| 494 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 495 | symbol. */ | |
| 496 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 497 | 0, /* rightshift */ | |
| 498 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 499 | 16, /* bitsize */ | |
| b34976b6 | 500 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
501 | 0, /* bitpos */ |
| 502 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 503 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 504 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 505 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
506 | 0, /* src_mask */ |
| 507 | 0xffff, /* dst_mask */ | |
| b34976b6 | 508 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
509 | |
| 510 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 511 | the symbol. */ | |
| 512 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 513 | 0, /* rightshift */ | |
| 514 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 515 | 16, /* bitsize */ | |
| b34976b6 | 516 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
517 | 0, /* bitpos */ |
| 518 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 519 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 520 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 521 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
522 | 0, /* src_mask */ |
| 523 | 0xffff, /* dst_mask */ | |
| b34976b6 | 524 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
525 | |
| 526 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 527 | the symbol. */ | |
| 528 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 529 | 16, /* rightshift */ | |
| 530 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 531 | 16, /* bitsize */ | |
| b34976b6 | 532 | FALSE, /* pc_relative */ |
| 5bd4f169 | 533 | 0, /* bitpos */ |
| f9c6b907 | 534 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 535 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 536 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 537 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
538 | 0, /* src_mask */ |
| 539 | 0xffff, /* dst_mask */ | |
| b34976b6 | 540 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
541 | |
| 542 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 543 | the symbol. */ | |
| 544 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 545 | 16, /* rightshift */ | |
| 546 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 547 | 16, /* bitsize */ | |
| b34976b6 | 548 | FALSE, /* pc_relative */ |
| 5bd4f169 | 549 | 0, /* bitpos */ |
| f9c6b907 | 550 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 551 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 552 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 553 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
554 | 0, /* src_mask */ |
| 555 | 0xffff, /* dst_mask */ | |
| b34976b6 | 556 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
557 | |
| 558 | /* This is used only by the dynamic linker. The symbol should exist | |
| 559 | both in the object being run and in some shared library. The | |
| 560 | dynamic linker copies the data addressed by the symbol from the | |
| 561 | shared library into the object, because the object being | |
| 562 | run has to have the data at some particular address. */ | |
| 563 | HOWTO (R_PPC64_COPY, /* type */ | |
| 564 | 0, /* rightshift */ | |
| f5e87a1d AM |
565 | 0, /* this one is variable size */ |
| 566 | 0, /* bitsize */ | |
| b34976b6 | 567 | FALSE, /* pc_relative */ |
| 5bd4f169 | 568 | 0, /* bitpos */ |
| f5e87a1d AM |
569 | complain_overflow_dont, /* complain_on_overflow */ |
| 570 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 571 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 572 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
573 | 0, /* src_mask */ |
| 574 | 0, /* dst_mask */ | |
| b34976b6 | 575 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
576 | |
| 577 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 578 | entries. */ | |
| 579 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 580 | 0, /* rightshift */ | |
| 581 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 582 | 64, /* bitsize */ | |
| b34976b6 | 583 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
584 | 0, /* bitpos */ |
| 585 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 586 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 587 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 588 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 589 | 0, /* src_mask */ |
| f5e87a1d | 590 | ONES (64), /* dst_mask */ |
| b34976b6 | 591 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
592 | |
| 593 | /* Created by the link editor. Marks a procedure linkage table | |
| 594 | entry for a symbol. */ | |
| 595 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 596 | 0, /* rightshift */ | |
| 597 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 598 | 0, /* bitsize */ | |
| b34976b6 | 599 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
600 | 0, /* bitpos */ |
| 601 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 602 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 603 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 604 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
605 | 0, /* src_mask */ |
| 606 | 0, /* dst_mask */ | |
| b34976b6 | 607 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
608 | |
| 609 | /* Used only by the dynamic linker. When the object is run, this | |
| 610 | doubleword64 is set to the load address of the object, plus the | |
| 611 | addend. */ | |
| 612 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 613 | 0, /* rightshift */ | |
| 614 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 615 | 64, /* bitsize */ | |
| b34976b6 | 616 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
617 | 0, /* bitpos */ |
| 618 | complain_overflow_dont, /* complain_on_overflow */ | |
| 619 | bfd_elf_generic_reloc, /* special_function */ | |
| 620 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 621 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 622 | 0, /* src_mask */ |
| f5e87a1d | 623 | ONES (64), /* dst_mask */ |
| b34976b6 | 624 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
625 | |
| 626 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 627 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 628 | 0, /* rightshift */ | |
| 629 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 630 | 32, /* bitsize */ | |
| b34976b6 | 631 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
632 | 0, /* bitpos */ |
| 633 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 634 | bfd_elf_generic_reloc, /* special_function */ | |
| 635 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 636 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
637 | 0, /* src_mask */ |
| 638 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 639 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
640 | |
| 641 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 642 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 643 | 0, /* rightshift */ | |
| 644 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 645 | 16, /* bitsize */ | |
| b34976b6 | 646 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
647 | 0, /* bitpos */ |
| 648 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 649 | bfd_elf_generic_reloc, /* special_function */ | |
| 650 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 651 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
652 | 0, /* src_mask */ |
| 653 | 0xffff, /* dst_mask */ | |
| b34976b6 | 654 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
655 | |
| 656 | /* 32-bit PC relative. */ | |
| 657 | HOWTO (R_PPC64_REL32, /* type */ | |
| 658 | 0, /* rightshift */ | |
| 659 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 660 | 32, /* bitsize */ | |
| b34976b6 | 661 | TRUE, /* pc_relative */ |
| 5bd4f169 | 662 | 0, /* bitpos */ |
| 5bd4f169 AM |
663 | complain_overflow_signed, /* complain_on_overflow */ |
| 664 | bfd_elf_generic_reloc, /* special_function */ | |
| 665 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 666 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
667 | 0, /* src_mask */ |
| 668 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 669 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 670 | |
| 10ed1bba | 671 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
672 | HOWTO (R_PPC64_PLT32, /* type */ |
| 673 | 0, /* rightshift */ | |
| 674 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 675 | 32, /* bitsize */ | |
| b34976b6 | 676 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
677 | 0, /* bitpos */ |
| 678 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 679 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 680 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 681 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 682 | 0, /* src_mask */ |
| f5e87a1d | 683 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 684 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
685 | |
| 686 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 687 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 688 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 689 | 0, /* rightshift */ | |
| 690 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 691 | 32, /* bitsize */ | |
| b34976b6 | 692 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
693 | 0, /* bitpos */ |
| 694 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 695 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 696 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 697 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 698 | 0, /* src_mask */ |
| f5e87a1d | 699 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 700 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
701 | |
| 702 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 703 | the symbol. */ | |
| 704 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 705 | 0, /* rightshift */ | |
| 706 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 707 | 16, /* bitsize */ | |
| b34976b6 | 708 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
709 | 0, /* bitpos */ |
| 710 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 711 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 712 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 713 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
714 | 0, /* src_mask */ |
| 715 | 0xffff, /* dst_mask */ | |
| b34976b6 | 716 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
717 | |
| 718 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 719 | the symbol. */ | |
| 720 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 721 | 16, /* rightshift */ | |
| 722 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 723 | 16, /* bitsize */ | |
| b34976b6 | 724 | FALSE, /* pc_relative */ |
| 5bd4f169 | 725 | 0, /* bitpos */ |
| f9c6b907 | 726 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 727 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 728 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 729 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
730 | 0, /* src_mask */ |
| 731 | 0xffff, /* dst_mask */ | |
| b34976b6 | 732 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
733 | |
| 734 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 735 | the symbol. */ | |
| 736 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 737 | 16, /* rightshift */ | |
| 738 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 739 | 16, /* bitsize */ | |
| b34976b6 | 740 | FALSE, /* pc_relative */ |
| 5bd4f169 | 741 | 0, /* bitpos */ |
| f9c6b907 | 742 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 743 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 744 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 745 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
746 | 0, /* src_mask */ |
| 747 | 0xffff, /* dst_mask */ | |
| b34976b6 | 748 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 749 | |
| c061c2d8 | 750 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
751 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 752 | 0, /* rightshift */ | |
| c061c2d8 AM |
753 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 754 | 16, /* bitsize */ | |
| b34976b6 | 755 | FALSE, /* pc_relative */ |
| 5bd4f169 | 756 | 0, /* bitpos */ |
| b80eed39 | 757 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 758 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 759 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 760 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 761 | 0, /* src_mask */ |
| c061c2d8 | 762 | 0xffff, /* dst_mask */ |
| b34976b6 | 763 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 764 | |
| c061c2d8 | 765 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
766 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 767 | 0, /* rightshift */ | |
| 768 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 769 | 16, /* bitsize */ | |
| b34976b6 | 770 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
771 | 0, /* bitpos */ |
| 772 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 773 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 774 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 775 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
776 | 0, /* src_mask */ |
| 777 | 0xffff, /* dst_mask */ | |
| b34976b6 | 778 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
779 | |
| 780 | /* 16-bit upper half section relative relocation. */ | |
| 781 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 782 | 16, /* rightshift */ | |
| 783 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 784 | 16, /* bitsize */ | |
| b34976b6 | 785 | FALSE, /* pc_relative */ |
| 5bd4f169 | 786 | 0, /* bitpos */ |
| f9c6b907 | 787 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 788 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 789 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 790 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
791 | 0, /* src_mask */ |
| 792 | 0xffff, /* dst_mask */ | |
| b34976b6 | 793 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
794 | |
| 795 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 796 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 797 | 16, /* rightshift */ | |
| 798 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 799 | 16, /* bitsize */ | |
| b34976b6 | 800 | FALSE, /* pc_relative */ |
| 5bd4f169 | 801 | 0, /* bitpos */ |
| f9c6b907 | 802 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 803 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 804 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 805 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
806 | 0, /* src_mask */ |
| 807 | 0xffff, /* dst_mask */ | |
| b34976b6 | 808 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 809 | |
| 04c9666a AM |
810 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 811 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
812 | 2, /* rightshift */ |
| 813 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 814 | 30, /* bitsize */ | |
| b34976b6 | 815 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
816 | 0, /* bitpos */ |
| 817 | complain_overflow_dont, /* complain_on_overflow */ | |
| 818 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 819 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 820 | FALSE, /* partial_inplace */ |
| d006db6c | 821 | 0, /* src_mask */ |
| 5bd4f169 | 822 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 823 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
824 | |
| 825 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 826 | ||
| 827 | /* A standard 64-bit relocation. */ | |
| 828 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 829 | 0, /* rightshift */ | |
| 830 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 831 | 64, /* bitsize */ | |
| b34976b6 | 832 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
833 | 0, /* bitpos */ |
| 834 | complain_overflow_dont, /* complain_on_overflow */ | |
| 835 | bfd_elf_generic_reloc, /* special_function */ | |
| 836 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 837 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 838 | 0, /* src_mask */ |
| f5e87a1d | 839 | ONES (64), /* dst_mask */ |
| b34976b6 | 840 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
841 | |
| 842 | /* The bits 32-47 of an address. */ | |
| 843 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 844 | 32, /* rightshift */ | |
| 845 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 846 | 16, /* bitsize */ | |
| b34976b6 | 847 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
848 | 0, /* bitpos */ |
| 849 | complain_overflow_dont, /* complain_on_overflow */ | |
| 850 | bfd_elf_generic_reloc, /* special_function */ | |
| 851 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 852 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
853 | 0, /* src_mask */ |
| 854 | 0xffff, /* dst_mask */ | |
| b34976b6 | 855 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
856 | |
| 857 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 858 | 16 bits, treated as a signed number, is negative. */ | |
| 859 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 860 | 32, /* rightshift */ | |
| 861 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 862 | 16, /* bitsize */ | |
| b34976b6 | 863 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
864 | 0, /* bitpos */ |
| 865 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 866 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 867 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 868 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
869 | 0, /* src_mask */ |
| 870 | 0xffff, /* dst_mask */ | |
| b34976b6 | 871 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
872 | |
| 873 | /* The bits 48-63 of an address. */ | |
| 874 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 875 | 48, /* rightshift */ | |
| 876 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 877 | 16, /* bitsize */ | |
| b34976b6 | 878 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
879 | 0, /* bitpos */ |
| 880 | complain_overflow_dont, /* complain_on_overflow */ | |
| 881 | bfd_elf_generic_reloc, /* special_function */ | |
| 882 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 883 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
884 | 0, /* src_mask */ |
| 885 | 0xffff, /* dst_mask */ | |
| b34976b6 | 886 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
887 | |
| 888 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 889 | 16 bits, treated as a signed number, is negative. */ | |
| 890 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 891 | 48, /* rightshift */ | |
| 892 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 893 | 16, /* bitsize */ | |
| b34976b6 | 894 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
895 | 0, /* bitpos */ |
| 896 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 897 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 898 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 899 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
900 | 0, /* src_mask */ |
| 901 | 0xffff, /* dst_mask */ | |
| b34976b6 | 902 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
903 | |
| 904 | /* Like ADDR64, but may be unaligned. */ | |
| 905 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 906 | 0, /* rightshift */ | |
| 907 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 908 | 64, /* bitsize */ | |
| b34976b6 | 909 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
910 | 0, /* bitpos */ |
| 911 | complain_overflow_dont, /* complain_on_overflow */ | |
| 912 | bfd_elf_generic_reloc, /* special_function */ | |
| 913 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 914 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 915 | 0, /* src_mask */ |
| f5e87a1d | 916 | ONES (64), /* dst_mask */ |
| b34976b6 | 917 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
918 | |
| 919 | /* 64-bit relative relocation. */ | |
| 920 | HOWTO (R_PPC64_REL64, /* type */ | |
| 921 | 0, /* rightshift */ | |
| 922 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 923 | 64, /* bitsize */ | |
| b34976b6 | 924 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
925 | 0, /* bitpos */ |
| 926 | complain_overflow_dont, /* complain_on_overflow */ | |
| 927 | bfd_elf_generic_reloc, /* special_function */ | |
| 928 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 929 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 930 | 0, /* src_mask */ |
| f5e87a1d | 931 | ONES (64), /* dst_mask */ |
| b34976b6 | 932 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 933 | |
| cedb70c5 | 934 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
935 | HOWTO (R_PPC64_PLT64, /* type */ |
| 936 | 0, /* rightshift */ | |
| 937 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 938 | 64, /* bitsize */ | |
| b34976b6 | 939 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
940 | 0, /* bitpos */ |
| 941 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 942 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 943 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 944 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 945 | 0, /* src_mask */ |
| f5e87a1d | 946 | ONES (64), /* dst_mask */ |
| b34976b6 | 947 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
948 | |
| 949 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 950 | table. */ | |
| 951 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 952 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 953 | 0, /* rightshift */ | |
| 954 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 955 | 64, /* bitsize */ | |
| b34976b6 | 956 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
957 | 0, /* bitpos */ |
| 958 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 959 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 960 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 961 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 962 | 0, /* src_mask */ |
| f5e87a1d | 963 | ONES (64), /* dst_mask */ |
| b34976b6 | 964 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
965 | |
| 966 | /* 16 bit TOC-relative relocation. */ | |
| 967 | ||
| 968 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 969 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 970 | 0, /* rightshift */ | |
| 971 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 972 | 16, /* bitsize */ | |
| b34976b6 | 973 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
974 | 0, /* bitpos */ |
| 975 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 976 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 977 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 978 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
979 | 0, /* src_mask */ |
| 980 | 0xffff, /* dst_mask */ | |
| b34976b6 | 981 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
982 | |
| 983 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 984 | ||
| 985 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 986 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 987 | 0, /* rightshift */ | |
| 988 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 989 | 16, /* bitsize */ | |
| b34976b6 | 990 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
991 | 0, /* bitpos */ |
| 992 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 993 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 994 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 995 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
996 | 0, /* src_mask */ |
| 997 | 0xffff, /* dst_mask */ | |
| b34976b6 | 998 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
999 | |
| 1000 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 1001 | ||
| 1002 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 1003 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 1004 | 16, /* rightshift */ | |
| 1005 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1006 | 16, /* bitsize */ | |
| b34976b6 | 1007 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1008 | 0, /* bitpos */ |
| f9c6b907 | 1009 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1010 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1011 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1012 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1013 | 0, /* src_mask */ |
| 1014 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1015 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1016 | |
| 1017 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1018 | contents of the low 16 bits, treated as a signed number, is | |
| 1019 | negative. */ | |
| 1020 | ||
| 1021 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1022 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1023 | 16, /* rightshift */ | |
| 1024 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1025 | 16, /* bitsize */ | |
| b34976b6 | 1026 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1027 | 0, /* bitpos */ |
| f9c6b907 | 1028 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1029 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1030 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1031 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1032 | 0, /* src_mask */ |
| 1033 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1034 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1035 | |
| 1036 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1037 | ||
| 1038 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1039 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1040 | 0, /* rightshift */ | |
| 1041 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1042 | 64, /* bitsize */ | |
| b34976b6 | 1043 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1044 | 0, /* bitpos */ |
| b80eed39 | 1045 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1046 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1047 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1048 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1049 | 0, /* src_mask */ |
| f5e87a1d | 1050 | ONES (64), /* dst_mask */ |
| b34976b6 | 1051 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1052 | |
| 1053 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1054 | value to relocate may (!) refer to a PLT entry which the link | |
| 1055 | editor (a) may replace with the symbol value. If the link editor | |
| 1056 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1057 | entry and store the address to the new PLT entry in the GOT. | |
| 1058 | This permits lazy resolution of function symbols at run time. | |
| 1059 | The link editor may also skip all of this and just (c) emit a | |
| 1060 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1061 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1062 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1063 | 0, /* rightshift */ | |
| 1064 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1065 | 16, /* bitsize */ | |
| b34976b6 | 1066 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1067 | 0, /* bitpos */ |
| 1068 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1069 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1070 | "R_PPC64_PLTGOT16", /* name */ |
| 1071 | FALSE, /* partial_inplace */ | |
| 1072 | 0, /* src_mask */ | |
| 1073 | 0xffff, /* dst_mask */ | |
| 1074 | FALSE), /* pcrel_offset */ | |
| 1075 | ||
| 1076 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1077 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1078 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1079 | 0, /* rightshift */ | |
| 1080 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1081 | 16, /* bitsize */ | |
| 1082 | FALSE, /* pc_relative */ | |
| 1083 | 0, /* bitpos */ | |
| 1084 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1085 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1086 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1087 | FALSE, /* partial_inplace */ | |
| 1088 | 0, /* src_mask */ | |
| 1089 | 0xffff, /* dst_mask */ | |
| 1090 | FALSE), /* pcrel_offset */ | |
| 1091 | ||
| 1092 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1093 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1094 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1095 | 16, /* rightshift */ | |
| 1096 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1097 | 16, /* bitsize */ | |
| 1098 | FALSE, /* pc_relative */ | |
| 1099 | 0, /* bitpos */ | |
| f9c6b907 | 1100 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1101 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1102 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1103 | FALSE, /* partial_inplace */ | |
| 1104 | 0, /* src_mask */ | |
| 1105 | 0xffff, /* dst_mask */ | |
| 1106 | FALSE), /* pcrel_offset */ | |
| 1107 | ||
| 1108 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1109 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1110 | is negative. */ | |
| 1111 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1112 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1113 | 16, /* rightshift */ | |
| 1114 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1115 | 16, /* bitsize */ | |
| 1116 | FALSE, /* pc_relative */ | |
| 1117 | 0, /* bitpos */ | |
| f9c6b907 | 1118 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1119 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1120 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1121 | FALSE, /* partial_inplace */ | |
| 1122 | 0, /* src_mask */ | |
| 1123 | 0xffff, /* dst_mask */ | |
| 1124 | FALSE), /* pcrel_offset */ | |
| 1125 | ||
| 1126 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1127 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1128 | 0, /* rightshift */ | |
| 1129 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1130 | 16, /* bitsize */ | |
| 1131 | FALSE, /* pc_relative */ | |
| 1132 | 0, /* bitpos */ | |
| b80eed39 | 1133 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1134 | bfd_elf_generic_reloc, /* special_function */ |
| 1135 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1136 | FALSE, /* partial_inplace */ | |
| 1137 | 0, /* src_mask */ | |
| 1138 | 0xfffc, /* dst_mask */ | |
| 1139 | FALSE), /* pcrel_offset */ | |
| 1140 | ||
| 1141 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1142 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1143 | 0, /* rightshift */ | |
| 1144 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1145 | 16, /* bitsize */ | |
| 1146 | FALSE, /* pc_relative */ | |
| 1147 | 0, /* bitpos */ | |
| 1148 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1149 | bfd_elf_generic_reloc, /* special_function */ | |
| 1150 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1151 | FALSE, /* partial_inplace */ | |
| 1152 | 0, /* src_mask */ | |
| 1153 | 0xfffc, /* dst_mask */ | |
| 1154 | FALSE), /* pcrel_offset */ | |
| 1155 | ||
| 1156 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1157 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1158 | 0, /* rightshift */ | |
| 1159 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1160 | 16, /* bitsize */ | |
| 1161 | FALSE, /* pc_relative */ | |
| 1162 | 0, /* bitpos */ | |
| 1163 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1164 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1165 | "R_PPC64_GOT16_DS", /* name */ | |
| 1166 | FALSE, /* partial_inplace */ | |
| 1167 | 0, /* src_mask */ | |
| 1168 | 0xfffc, /* dst_mask */ | |
| 1169 | FALSE), /* pcrel_offset */ | |
| 1170 | ||
| 1171 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1172 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1173 | 0, /* rightshift */ | |
| 1174 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1175 | 16, /* bitsize */ | |
| 1176 | FALSE, /* pc_relative */ | |
| 1177 | 0, /* bitpos */ | |
| 1178 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1179 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1180 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1181 | FALSE, /* partial_inplace */ | |
| 1182 | 0, /* src_mask */ | |
| 1183 | 0xfffc, /* dst_mask */ | |
| 1184 | FALSE), /* pcrel_offset */ | |
| 1185 | ||
| 1186 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1187 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1188 | 0, /* rightshift */ | |
| 1189 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1190 | 16, /* bitsize */ | |
| 1191 | FALSE, /* pc_relative */ | |
| 1192 | 0, /* bitpos */ | |
| 1193 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1194 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1195 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1196 | FALSE, /* partial_inplace */ | |
| 1197 | 0, /* src_mask */ | |
| 1198 | 0xfffc, /* dst_mask */ | |
| 1199 | FALSE), /* pcrel_offset */ | |
| 1200 | ||
| 1201 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1202 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1203 | 0, /* rightshift */ | |
| 1204 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1205 | 16, /* bitsize */ | |
| 1206 | FALSE, /* pc_relative */ | |
| 1207 | 0, /* bitpos */ | |
| b80eed39 | 1208 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1209 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1210 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1211 | FALSE, /* partial_inplace */ | |
| 1212 | 0, /* src_mask */ | |
| 1213 | 0xfffc, /* dst_mask */ | |
| 1214 | FALSE), /* pcrel_offset */ | |
| 1215 | ||
| 1216 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1217 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1218 | 0, /* rightshift */ | |
| 1219 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1220 | 16, /* bitsize */ | |
| 1221 | FALSE, /* pc_relative */ | |
| 1222 | 0, /* bitpos */ | |
| 1223 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1224 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1225 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1226 | FALSE, /* partial_inplace */ | |
| 1227 | 0, /* src_mask */ | |
| 1228 | 0xfffc, /* dst_mask */ | |
| 1229 | FALSE), /* pcrel_offset */ | |
| 1230 | ||
| 1231 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1232 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1233 | 0, /* rightshift */ | |
| 1234 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1235 | 16, /* bitsize */ | |
| 1236 | FALSE, /* pc_relative */ | |
| 1237 | 0, /* bitpos */ | |
| 1238 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1239 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1240 | "R_PPC64_TOC16_DS", /* name */ | |
| 1241 | FALSE, /* partial_inplace */ | |
| 1242 | 0, /* src_mask */ | |
| 1243 | 0xfffc, /* dst_mask */ | |
| 1244 | FALSE), /* pcrel_offset */ | |
| 1245 | ||
| 1246 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1247 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1248 | 0, /* rightshift */ | |
| 1249 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1250 | 16, /* bitsize */ | |
| 1251 | FALSE, /* pc_relative */ | |
| 1252 | 0, /* bitpos */ | |
| 1253 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1254 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1255 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1256 | FALSE, /* partial_inplace */ | |
| 1257 | 0, /* src_mask */ | |
| 1258 | 0xfffc, /* dst_mask */ | |
| 1259 | FALSE), /* pcrel_offset */ | |
| 1260 | ||
| 1261 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1262 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1263 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1264 | 0, /* rightshift */ |
| 1265 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1266 | 16, /* bitsize */ | |
| 1267 | FALSE, /* pc_relative */ | |
| 1268 | 0, /* bitpos */ | |
| 1269 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1270 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1271 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1272 | FALSE, /* partial_inplace */ | |
| 1273 | 0, /* src_mask */ | |
| 1274 | 0xfffc, /* dst_mask */ | |
| 1275 | FALSE), /* pcrel_offset */ | |
| 1276 | ||
| 1277 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1278 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1279 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1280 | 0, /* rightshift */ | |
| 1281 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1282 | 16, /* bitsize */ | |
| 1283 | FALSE, /* pc_relative */ | |
| 1284 | 0, /* bitpos */ | |
| 1285 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1286 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1287 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1288 | FALSE, /* partial_inplace */ | |
| 1289 | 0, /* src_mask */ | |
| 1290 | 0xfffc, /* dst_mask */ | |
| 1291 | FALSE), /* pcrel_offset */ | |
| 1292 | ||
| 727fc41e | 1293 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1294 | HOWTO (R_PPC64_TLS, |
| 1295 | 0, /* rightshift */ | |
| 1296 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1297 | 32, /* bitsize */ | |
| 1298 | FALSE, /* pc_relative */ | |
| 1299 | 0, /* bitpos */ | |
| 1300 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1301 | bfd_elf_generic_reloc, /* special_function */ | |
| 1302 | "R_PPC64_TLS", /* name */ | |
| 1303 | FALSE, /* partial_inplace */ | |
| 1304 | 0, /* src_mask */ | |
| 1305 | 0, /* dst_mask */ | |
| 1306 | FALSE), /* pcrel_offset */ | |
| 1307 | ||
| 727fc41e AM |
1308 | HOWTO (R_PPC64_TLSGD, |
| 1309 | 0, /* rightshift */ | |
| 1310 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1311 | 32, /* bitsize */ | |
| 1312 | FALSE, /* pc_relative */ | |
| 1313 | 0, /* bitpos */ | |
| 1314 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1315 | bfd_elf_generic_reloc, /* special_function */ | |
| 1316 | "R_PPC64_TLSGD", /* name */ | |
| 1317 | FALSE, /* partial_inplace */ | |
| 1318 | 0, /* src_mask */ | |
| 1319 | 0, /* dst_mask */ | |
| 1320 | FALSE), /* pcrel_offset */ | |
| 1321 | ||
| 1322 | HOWTO (R_PPC64_TLSLD, | |
| 1323 | 0, /* rightshift */ | |
| 1324 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1325 | 32, /* bitsize */ | |
| 1326 | FALSE, /* pc_relative */ | |
| 1327 | 0, /* bitpos */ | |
| 1328 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1329 | bfd_elf_generic_reloc, /* special_function */ | |
| 1330 | "R_PPC64_TLSLD", /* name */ | |
| 1331 | FALSE, /* partial_inplace */ | |
| 1332 | 0, /* src_mask */ | |
| 1333 | 0, /* dst_mask */ | |
| 1334 | FALSE), /* pcrel_offset */ | |
| 1335 | ||
| 3b421ab3 AM |
1336 | HOWTO (R_PPC64_TOCSAVE, |
| 1337 | 0, /* rightshift */ | |
| 1338 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1339 | 32, /* bitsize */ | |
| 1340 | FALSE, /* pc_relative */ | |
| 1341 | 0, /* bitpos */ | |
| 1342 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1343 | bfd_elf_generic_reloc, /* special_function */ | |
| 1344 | "R_PPC64_TOCSAVE", /* name */ | |
| 1345 | FALSE, /* partial_inplace */ | |
| 1346 | 0, /* src_mask */ | |
| 1347 | 0, /* dst_mask */ | |
| 1348 | FALSE), /* pcrel_offset */ | |
| 1349 | ||
| 411e1bfb AM |
1350 | /* Computes the load module index of the load module that contains the |
| 1351 | definition of its TLS sym. */ | |
| 1352 | HOWTO (R_PPC64_DTPMOD64, | |
| 1353 | 0, /* rightshift */ | |
| 1354 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1355 | 64, /* bitsize */ | |
| 1356 | FALSE, /* pc_relative */ | |
| 1357 | 0, /* bitpos */ | |
| 1358 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1359 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1360 | "R_PPC64_DTPMOD64", /* name */ | |
| 1361 | FALSE, /* partial_inplace */ | |
| 1362 | 0, /* src_mask */ | |
| 1363 | ONES (64), /* dst_mask */ | |
| 1364 | FALSE), /* pcrel_offset */ | |
| 1365 | ||
| 1366 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1367 | of sym+add and the base address of the thread-local storage block that | |
| 1368 | contains the definition of sym, minus 0x8000. */ | |
| 1369 | HOWTO (R_PPC64_DTPREL64, | |
| 1370 | 0, /* rightshift */ | |
| 1371 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1372 | 64, /* bitsize */ | |
| 1373 | FALSE, /* pc_relative */ | |
| 1374 | 0, /* bitpos */ | |
| 1375 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1376 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1377 | "R_PPC64_DTPREL64", /* name */ | |
| 1378 | FALSE, /* partial_inplace */ | |
| 1379 | 0, /* src_mask */ | |
| 1380 | ONES (64), /* dst_mask */ | |
| 1381 | FALSE), /* pcrel_offset */ | |
| 1382 | ||
| 1383 | /* A 16 bit dtprel reloc. */ | |
| 1384 | HOWTO (R_PPC64_DTPREL16, | |
| 1385 | 0, /* rightshift */ | |
| 1386 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1387 | 16, /* bitsize */ | |
| 1388 | FALSE, /* pc_relative */ | |
| 1389 | 0, /* bitpos */ | |
| 1390 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1391 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1392 | "R_PPC64_DTPREL16", /* name */ | |
| 1393 | FALSE, /* partial_inplace */ | |
| 1394 | 0, /* src_mask */ | |
| 1395 | 0xffff, /* dst_mask */ | |
| 1396 | FALSE), /* pcrel_offset */ | |
| 1397 | ||
| 1398 | /* Like DTPREL16, but no overflow. */ | |
| 1399 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1400 | 0, /* rightshift */ | |
| 1401 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1402 | 16, /* bitsize */ | |
| 1403 | FALSE, /* pc_relative */ | |
| 1404 | 0, /* bitpos */ | |
| 1405 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1406 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1407 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1408 | FALSE, /* partial_inplace */ | |
| 1409 | 0, /* src_mask */ | |
| 1410 | 0xffff, /* dst_mask */ | |
| 1411 | FALSE), /* pcrel_offset */ | |
| 1412 | ||
| 1413 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1414 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1415 | 16, /* rightshift */ | |
| 1416 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1417 | 16, /* bitsize */ | |
| 1418 | FALSE, /* pc_relative */ | |
| 1419 | 0, /* bitpos */ | |
| f9c6b907 | 1420 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1421 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1422 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1423 | FALSE, /* partial_inplace */ | |
| 1424 | 0, /* src_mask */ | |
| 1425 | 0xffff, /* dst_mask */ | |
| 1426 | FALSE), /* pcrel_offset */ | |
| 1427 | ||
| 1428 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1429 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1430 | 16, /* rightshift */ | |
| 1431 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1432 | 16, /* bitsize */ | |
| 1433 | FALSE, /* pc_relative */ | |
| 1434 | 0, /* bitpos */ | |
| f9c6b907 | 1435 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1436 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1437 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1438 | FALSE, /* partial_inplace */ | |
| 1439 | 0, /* src_mask */ | |
| 1440 | 0xffff, /* dst_mask */ | |
| 1441 | FALSE), /* pcrel_offset */ | |
| 1442 | ||
| 1443 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1444 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1445 | 32, /* rightshift */ | |
| 1446 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1447 | 16, /* bitsize */ | |
| 1448 | FALSE, /* pc_relative */ | |
| 1449 | 0, /* bitpos */ | |
| 1450 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1451 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1452 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1453 | FALSE, /* partial_inplace */ | |
| 1454 | 0, /* src_mask */ | |
| 1455 | 0xffff, /* dst_mask */ | |
| 1456 | FALSE), /* pcrel_offset */ | |
| 1457 | ||
| 1458 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1459 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1460 | 32, /* rightshift */ | |
| 1461 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1462 | 16, /* bitsize */ | |
| 1463 | FALSE, /* pc_relative */ | |
| 1464 | 0, /* bitpos */ | |
| 1465 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1466 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1467 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1468 | FALSE, /* partial_inplace */ | |
| 1469 | 0, /* src_mask */ | |
| 1470 | 0xffff, /* dst_mask */ | |
| 1471 | FALSE), /* pcrel_offset */ | |
| 1472 | ||
| 1473 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1474 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1475 | 48, /* rightshift */ | |
| 1476 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1477 | 16, /* bitsize */ | |
| 1478 | FALSE, /* pc_relative */ | |
| 1479 | 0, /* bitpos */ | |
| 1480 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1481 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1482 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1483 | FALSE, /* partial_inplace */ | |
| 1484 | 0, /* src_mask */ | |
| 1485 | 0xffff, /* dst_mask */ | |
| 1486 | FALSE), /* pcrel_offset */ | |
| 1487 | ||
| 1488 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1489 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1490 | 48, /* rightshift */ | |
| 1491 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1492 | 16, /* bitsize */ | |
| 1493 | FALSE, /* pc_relative */ | |
| 1494 | 0, /* bitpos */ | |
| 1495 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1496 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1497 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1498 | FALSE, /* partial_inplace */ | |
| 1499 | 0, /* src_mask */ | |
| 1500 | 0xffff, /* dst_mask */ | |
| 1501 | FALSE), /* pcrel_offset */ | |
| 1502 | ||
| 1503 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1504 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1505 | 0, /* rightshift */ | |
| 1506 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1507 | 16, /* bitsize */ | |
| 1508 | FALSE, /* pc_relative */ | |
| 1509 | 0, /* bitpos */ | |
| 1510 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1511 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1512 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1513 | FALSE, /* partial_inplace */ | |
| 1514 | 0, /* src_mask */ | |
| 1515 | 0xfffc, /* dst_mask */ | |
| 1516 | FALSE), /* pcrel_offset */ | |
| 1517 | ||
| 1518 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1519 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1520 | 0, /* rightshift */ | |
| 1521 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1522 | 16, /* bitsize */ | |
| 1523 | FALSE, /* pc_relative */ | |
| 1524 | 0, /* bitpos */ | |
| 1525 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1526 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1527 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1528 | FALSE, /* partial_inplace */ | |
| 1529 | 0, /* src_mask */ | |
| 1530 | 0xfffc, /* dst_mask */ | |
| 1531 | FALSE), /* pcrel_offset */ | |
| 1532 | ||
| 1533 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1534 | sym+add and the value of the thread pointer (r13). */ | |
| 1535 | HOWTO (R_PPC64_TPREL64, | |
| 1536 | 0, /* rightshift */ | |
| 1537 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1538 | 64, /* bitsize */ | |
| 1539 | FALSE, /* pc_relative */ | |
| 1540 | 0, /* bitpos */ | |
| 1541 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1542 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1543 | "R_PPC64_TPREL64", /* name */ | |
| 1544 | FALSE, /* partial_inplace */ | |
| 1545 | 0, /* src_mask */ | |
| 1546 | ONES (64), /* dst_mask */ | |
| 1547 | FALSE), /* pcrel_offset */ | |
| 1548 | ||
| 1549 | /* A 16 bit tprel reloc. */ | |
| 1550 | HOWTO (R_PPC64_TPREL16, | |
| 1551 | 0, /* rightshift */ | |
| 1552 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1553 | 16, /* bitsize */ | |
| 1554 | FALSE, /* pc_relative */ | |
| 1555 | 0, /* bitpos */ | |
| 1556 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1557 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1558 | "R_PPC64_TPREL16", /* name */ | |
| 1559 | FALSE, /* partial_inplace */ | |
| 1560 | 0, /* src_mask */ | |
| 1561 | 0xffff, /* dst_mask */ | |
| 1562 | FALSE), /* pcrel_offset */ | |
| 1563 | ||
| 1564 | /* Like TPREL16, but no overflow. */ | |
| 1565 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1566 | 0, /* rightshift */ | |
| 1567 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1568 | 16, /* bitsize */ | |
| 1569 | FALSE, /* pc_relative */ | |
| 1570 | 0, /* bitpos */ | |
| 1571 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1572 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1573 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1574 | FALSE, /* partial_inplace */ | |
| 1575 | 0, /* src_mask */ | |
| 1576 | 0xffff, /* dst_mask */ | |
| 1577 | FALSE), /* pcrel_offset */ | |
| 1578 | ||
| 1579 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1580 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1581 | 16, /* rightshift */ | |
| 1582 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1583 | 16, /* bitsize */ | |
| 1584 | FALSE, /* pc_relative */ | |
| 1585 | 0, /* bitpos */ | |
| f9c6b907 | 1586 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1587 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1588 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1589 | FALSE, /* partial_inplace */ | |
| 1590 | 0, /* src_mask */ | |
| 1591 | 0xffff, /* dst_mask */ | |
| 1592 | FALSE), /* pcrel_offset */ | |
| 1593 | ||
| 1594 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1595 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1596 | 16, /* rightshift */ | |
| 1597 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1598 | 16, /* bitsize */ | |
| 1599 | FALSE, /* pc_relative */ | |
| 1600 | 0, /* bitpos */ | |
| f9c6b907 | 1601 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1602 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1603 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1604 | FALSE, /* partial_inplace */ | |
| 1605 | 0, /* src_mask */ | |
| 1606 | 0xffff, /* dst_mask */ | |
| 1607 | FALSE), /* pcrel_offset */ | |
| 1608 | ||
| 1609 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1610 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1611 | 32, /* rightshift */ | |
| 1612 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1613 | 16, /* bitsize */ | |
| 1614 | FALSE, /* pc_relative */ | |
| 1615 | 0, /* bitpos */ | |
| 1616 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1617 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1618 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1619 | FALSE, /* partial_inplace */ | |
| 1620 | 0, /* src_mask */ | |
| 1621 | 0xffff, /* dst_mask */ | |
| 1622 | FALSE), /* pcrel_offset */ | |
| 1623 | ||
| 1624 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1625 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1626 | 32, /* rightshift */ | |
| 1627 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1628 | 16, /* bitsize */ | |
| 1629 | FALSE, /* pc_relative */ | |
| 1630 | 0, /* bitpos */ | |
| 1631 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1632 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1633 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1634 | FALSE, /* partial_inplace */ | |
| 1635 | 0, /* src_mask */ | |
| 1636 | 0xffff, /* dst_mask */ | |
| 1637 | FALSE), /* pcrel_offset */ | |
| 1638 | ||
| 1639 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1640 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1641 | 48, /* rightshift */ | |
| 1642 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1643 | 16, /* bitsize */ | |
| 1644 | FALSE, /* pc_relative */ | |
| 1645 | 0, /* bitpos */ | |
| 1646 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1647 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1648 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1649 | FALSE, /* partial_inplace */ | |
| 1650 | 0, /* src_mask */ | |
| 1651 | 0xffff, /* dst_mask */ | |
| 1652 | FALSE), /* pcrel_offset */ | |
| 1653 | ||
| 1654 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1655 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1656 | 48, /* rightshift */ | |
| 1657 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1658 | 16, /* bitsize */ | |
| 1659 | FALSE, /* pc_relative */ | |
| 1660 | 0, /* bitpos */ | |
| 1661 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1662 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1663 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1664 | FALSE, /* partial_inplace */ | |
| 1665 | 0, /* src_mask */ | |
| 1666 | 0xffff, /* dst_mask */ | |
| 1667 | FALSE), /* pcrel_offset */ | |
| 1668 | ||
| 1669 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1670 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1671 | 0, /* rightshift */ | |
| 1672 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1673 | 16, /* bitsize */ | |
| 1674 | FALSE, /* pc_relative */ | |
| 1675 | 0, /* bitpos */ | |
| 1676 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1677 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1678 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1679 | FALSE, /* partial_inplace */ | |
| 1680 | 0, /* src_mask */ | |
| 1681 | 0xfffc, /* dst_mask */ | |
| 1682 | FALSE), /* pcrel_offset */ | |
| 1683 | ||
| 1684 | /* Like TPREL16_DS, but no overflow. */ | |
| 1685 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1686 | 0, /* rightshift */ | |
| 1687 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1688 | 16, /* bitsize */ | |
| 1689 | FALSE, /* pc_relative */ | |
| 1690 | 0, /* bitpos */ | |
| 1691 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1692 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1693 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1694 | FALSE, /* partial_inplace */ | |
| 1695 | 0, /* src_mask */ | |
| 1696 | 0xfffc, /* dst_mask */ | |
| 1697 | FALSE), /* pcrel_offset */ | |
| 1698 | ||
| 1699 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1700 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1701 | to the first entry relative to the TOC base (r2). */ | |
| 1702 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1703 | 0, /* rightshift */ | |
| 1704 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1705 | 16, /* bitsize */ | |
| 1706 | FALSE, /* pc_relative */ | |
| 1707 | 0, /* bitpos */ | |
| 1708 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1709 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1710 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1711 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1712 | 0, /* src_mask */ |
| 1713 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1714 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1715 | |
| 411e1bfb AM |
1716 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1717 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1718 | 0, /* rightshift */ |
| 1719 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1720 | 16, /* bitsize */ | |
| b34976b6 | 1721 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1722 | 0, /* bitpos */ |
| 1723 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1724 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1725 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1726 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1727 | 0, /* src_mask */ |
| 1728 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1729 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1730 | |
| 411e1bfb AM |
1731 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1732 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1733 | 16, /* rightshift */ |
| 1734 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1735 | 16, /* bitsize */ | |
| b34976b6 | 1736 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1737 | 0, /* bitpos */ |
| f9c6b907 | 1738 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1739 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1740 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1741 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1742 | 0, /* src_mask */ |
| 1743 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1744 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1745 | |
| 411e1bfb AM |
1746 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1747 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1748 | 16, /* rightshift */ |
| 1749 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1750 | 16, /* bitsize */ | |
| b34976b6 | 1751 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1752 | 0, /* bitpos */ |
| f9c6b907 | 1753 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1754 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1755 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1756 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1757 | 0, /* src_mask */ |
| 1758 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1759 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1760 | |
| 411e1bfb AM |
1761 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1762 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1763 | first entry relative to the TOC base (r2). */ | |
| 1764 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1765 | 0, /* rightshift */ |
| 1766 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1767 | 16, /* bitsize */ | |
| b34976b6 | 1768 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1769 | 0, /* bitpos */ |
| 411e1bfb AM |
1770 | complain_overflow_signed, /* complain_on_overflow */ |
| 1771 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1772 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1773 | FALSE, /* partial_inplace */ |
| d006db6c | 1774 | 0, /* src_mask */ |
| 411e1bfb | 1775 | 0xffff, /* dst_mask */ |
| b34976b6 | 1776 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1777 | |
| 411e1bfb AM |
1778 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1779 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1780 | 0, /* rightshift */ |
| 1781 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1782 | 16, /* bitsize */ | |
| b34976b6 | 1783 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1784 | 0, /* bitpos */ |
| 411e1bfb AM |
1785 | complain_overflow_dont, /* complain_on_overflow */ |
| 1786 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1787 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1788 | FALSE, /* partial_inplace */ |
| d006db6c | 1789 | 0, /* src_mask */ |
| 411e1bfb | 1790 | 0xffff, /* dst_mask */ |
| b34976b6 | 1791 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1792 | |
| 411e1bfb AM |
1793 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1794 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1795 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1796 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1797 | 16, /* bitsize */ | |
| b34976b6 | 1798 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1799 | 0, /* bitpos */ |
| f9c6b907 | 1800 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1801 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1802 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1803 | FALSE, /* partial_inplace */ |
| d006db6c | 1804 | 0, /* src_mask */ |
| 411e1bfb | 1805 | 0xffff, /* dst_mask */ |
| b34976b6 | 1806 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1807 | |
| 411e1bfb AM |
1808 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1809 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1810 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1811 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1812 | 16, /* bitsize */ | |
| b34976b6 | 1813 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1814 | 0, /* bitpos */ |
| f9c6b907 | 1815 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1816 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1817 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1818 | FALSE, /* partial_inplace */ |
| d006db6c | 1819 | 0, /* src_mask */ |
| 411e1bfb | 1820 | 0xffff, /* dst_mask */ |
| b34976b6 | 1821 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1822 | |
| 411e1bfb AM |
1823 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1824 | the offset to the entry relative to the TOC base (r2). */ | |
| 1825 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1826 | 0, /* rightshift */ |
| 1827 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1828 | 16, /* bitsize */ | |
| b34976b6 | 1829 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1830 | 0, /* bitpos */ |
| 411e1bfb | 1831 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1832 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1833 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1834 | FALSE, /* partial_inplace */ |
| d006db6c | 1835 | 0, /* src_mask */ |
| 5bd4f169 | 1836 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1837 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1838 | |
| 411e1bfb AM |
1839 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1840 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1841 | 0, /* rightshift */ |
| c061c2d8 AM |
1842 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1843 | 16, /* bitsize */ | |
| b34976b6 | 1844 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1845 | 0, /* bitpos */ |
| 411e1bfb AM |
1846 | complain_overflow_dont, /* complain_on_overflow */ |
| 1847 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1848 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1849 | FALSE, /* partial_inplace */ |
| d006db6c | 1850 | 0, /* src_mask */ |
| c061c2d8 | 1851 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1852 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1853 | |
| 411e1bfb AM |
1854 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1855 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1856 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1857 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1858 | 16, /* bitsize */ | |
| b34976b6 | 1859 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1860 | 0, /* bitpos */ |
| f9c6b907 | 1861 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1862 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1863 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1864 | FALSE, /* partial_inplace */ |
| d006db6c | 1865 | 0, /* src_mask */ |
| 411e1bfb | 1866 | 0xffff, /* dst_mask */ |
| b34976b6 | 1867 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1868 | |
| 411e1bfb AM |
1869 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1870 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1871 | 16, /* rightshift */ | |
| 1872 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1873 | 16, /* bitsize */ | |
| 1874 | FALSE, /* pc_relative */ | |
| 1875 | 0, /* bitpos */ | |
| f9c6b907 | 1876 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1877 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1878 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1879 | FALSE, /* partial_inplace */ | |
| 1880 | 0, /* src_mask */ | |
| 1881 | 0xffff, /* dst_mask */ | |
| 1882 | FALSE), /* pcrel_offset */ | |
| 1883 | ||
| 1884 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1885 | offset to the entry relative to the TOC base (r2). */ | |
| 1886 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1887 | 0, /* rightshift */ |
| 1888 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1889 | 16, /* bitsize */ | |
| b34976b6 | 1890 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1891 | 0, /* bitpos */ |
| 1892 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1893 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1894 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1895 | FALSE, /* partial_inplace */ |
| d006db6c | 1896 | 0, /* src_mask */ |
| ad8e1ba5 | 1897 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1898 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1899 | |
| 411e1bfb AM |
1900 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1901 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1902 | 0, /* rightshift */ |
| 1903 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1904 | 16, /* bitsize */ | |
| b34976b6 | 1905 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1906 | 0, /* bitpos */ |
| 1907 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1908 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1909 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1910 | FALSE, /* partial_inplace */ |
| d006db6c | 1911 | 0, /* src_mask */ |
| ad8e1ba5 | 1912 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1913 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1914 | |
| 411e1bfb AM |
1915 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1916 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1917 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1918 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1919 | 16, /* bitsize */ | |
| b34976b6 | 1920 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1921 | 0, /* bitpos */ |
| f9c6b907 | 1922 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1923 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1924 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1925 | FALSE, /* partial_inplace */ |
| d006db6c | 1926 | 0, /* src_mask */ |
| 411e1bfb | 1927 | 0xffff, /* dst_mask */ |
| b34976b6 | 1928 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1929 | |
| 411e1bfb AM |
1930 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1931 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1932 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1933 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1934 | 16, /* bitsize */ | |
| b34976b6 | 1935 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1936 | 0, /* bitpos */ |
| f9c6b907 | 1937 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1938 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1939 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1940 | FALSE, /* partial_inplace */ |
| d006db6c | 1941 | 0, /* src_mask */ |
| 411e1bfb | 1942 | 0xffff, /* dst_mask */ |
| b34976b6 | 1943 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1944 | |
| 25f23106 AM |
1945 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1946 | 0, /* rightshift */ | |
| 1947 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1948 | 0, /* bitsize */ | |
| 1949 | FALSE, /* pc_relative */ | |
| 1950 | 0, /* bitpos */ | |
| 1951 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1952 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1953 | "R_PPC64_JMP_IREL", /* name */ | |
| 1954 | FALSE, /* partial_inplace */ | |
| 1955 | 0, /* src_mask */ | |
| 1956 | 0, /* dst_mask */ | |
| 1957 | FALSE), /* pcrel_offset */ | |
| 1958 | ||
| e054468f AM |
1959 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1960 | 0, /* rightshift */ | |
| 1961 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1962 | 64, /* bitsize */ | |
| 1963 | FALSE, /* pc_relative */ | |
| 1964 | 0, /* bitpos */ | |
| 1965 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1966 | bfd_elf_generic_reloc, /* special_function */ | |
| 1967 | "R_PPC64_IRELATIVE", /* name */ | |
| 1968 | FALSE, /* partial_inplace */ | |
| 1969 | 0, /* src_mask */ | |
| 1970 | ONES (64), /* dst_mask */ | |
| 1971 | FALSE), /* pcrel_offset */ | |
| 1972 | ||
| 25f23106 AM |
1973 | /* A 16 bit relative relocation. */ |
| 1974 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1975 | 0, /* rightshift */ | |
| 1976 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1977 | 16, /* bitsize */ | |
| 1978 | TRUE, /* pc_relative */ | |
| 1979 | 0, /* bitpos */ | |
| b80eed39 | 1980 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1981 | bfd_elf_generic_reloc, /* special_function */ |
| 1982 | "R_PPC64_REL16", /* name */ | |
| 1983 | FALSE, /* partial_inplace */ | |
| 1984 | 0, /* src_mask */ | |
| 1985 | 0xffff, /* dst_mask */ | |
| 1986 | TRUE), /* pcrel_offset */ | |
| 1987 | ||
| 1988 | /* A 16 bit relative relocation without overflow. */ | |
| 1989 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1990 | 0, /* rightshift */ | |
| 1991 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1992 | 16, /* bitsize */ | |
| 1993 | TRUE, /* pc_relative */ | |
| 1994 | 0, /* bitpos */ | |
| 1995 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1996 | bfd_elf_generic_reloc, /* special_function */ | |
| 1997 | "R_PPC64_REL16_LO", /* name */ | |
| 1998 | FALSE, /* partial_inplace */ | |
| 1999 | 0, /* src_mask */ | |
| 2000 | 0xffff, /* dst_mask */ | |
| 2001 | TRUE), /* pcrel_offset */ | |
| 2002 | ||
| 2003 | /* The high order 16 bits of a relative address. */ | |
| 2004 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2005 | 16, /* rightshift */ | |
| 2006 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2007 | 16, /* bitsize */ | |
| 2008 | TRUE, /* pc_relative */ | |
| 2009 | 0, /* bitpos */ | |
| f9c6b907 | 2010 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2011 | bfd_elf_generic_reloc, /* special_function */ |
| 2012 | "R_PPC64_REL16_HI", /* name */ | |
| 2013 | FALSE, /* partial_inplace */ | |
| 2014 | 0, /* src_mask */ | |
| 2015 | 0xffff, /* dst_mask */ | |
| 2016 | TRUE), /* pcrel_offset */ | |
| 2017 | ||
| 2018 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2019 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2020 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2021 | 16, /* rightshift */ | |
| 2022 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2023 | 16, /* bitsize */ | |
| 2024 | TRUE, /* pc_relative */ | |
| 2025 | 0, /* bitpos */ | |
| f9c6b907 | 2026 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2027 | ppc64_elf_ha_reloc, /* special_function */ |
| 2028 | "R_PPC64_REL16_HA", /* name */ | |
| 2029 | FALSE, /* partial_inplace */ | |
| 2030 | 0, /* src_mask */ | |
| 2031 | 0xffff, /* dst_mask */ | |
| 2032 | TRUE), /* pcrel_offset */ | |
| 2033 | ||
| a680de9a PB |
2034 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2035 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2036 | 16, /* rightshift */ | |
| 2037 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2038 | 16, /* bitsize */ | |
| 2039 | TRUE, /* pc_relative */ | |
| 2040 | 0, /* bitpos */ | |
| 2041 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2042 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2043 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2044 | FALSE, /* partial_inplace */ | |
| 2045 | 0, /* src_mask */ | |
| 2046 | 0x1fffc1, /* dst_mask */ | |
| 2047 | TRUE), /* pcrel_offset */ | |
| 2048 | ||
| 7ba71655 AM |
2049 | /* A split-field reloc for addpcis, non-relative (gas internal use only). */ |
| 2050 | HOWTO (R_PPC64_16DX_HA, /* type */ | |
| 2051 | 16, /* rightshift */ | |
| 2052 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2053 | 16, /* bitsize */ | |
| 2054 | FALSE, /* pc_relative */ | |
| 2055 | 0, /* bitpos */ | |
| 2056 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2057 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2058 | "R_PPC64_16DX_HA", /* name */ | |
| 2059 | FALSE, /* partial_inplace */ | |
| 2060 | 0, /* src_mask */ | |
| 2061 | 0x1fffc1, /* dst_mask */ | |
| 2062 | FALSE), /* pcrel_offset */ | |
| 2063 | ||
| f9c6b907 AM |
2064 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2065 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2066 | 16, /* rightshift */ | |
| 2067 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2068 | 16, /* bitsize */ | |
| 2069 | FALSE, /* pc_relative */ | |
| 2070 | 0, /* bitpos */ | |
| 2071 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2072 | bfd_elf_generic_reloc, /* special_function */ | |
| 2073 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2074 | FALSE, /* partial_inplace */ | |
| 2075 | 0, /* src_mask */ | |
| 2076 | 0xffff, /* dst_mask */ | |
| 2077 | FALSE), /* pcrel_offset */ | |
| 2078 | ||
| 2079 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2080 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2081 | 16, /* rightshift */ | |
| 2082 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2083 | 16, /* bitsize */ | |
| 2084 | FALSE, /* pc_relative */ | |
| 2085 | 0, /* bitpos */ | |
| 2086 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2087 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2088 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2089 | FALSE, /* partial_inplace */ | |
| 2090 | 0, /* src_mask */ | |
| 2091 | 0xffff, /* dst_mask */ | |
| 2092 | FALSE), /* pcrel_offset */ | |
| 2093 | ||
| 2094 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2095 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2096 | 16, /* rightshift */ | |
| 2097 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2098 | 16, /* bitsize */ | |
| 2099 | FALSE, /* pc_relative */ | |
| 2100 | 0, /* bitpos */ | |
| 2101 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2102 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2103 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2104 | FALSE, /* partial_inplace */ | |
| 2105 | 0, /* src_mask */ | |
| 2106 | 0xffff, /* dst_mask */ | |
| 2107 | FALSE), /* pcrel_offset */ | |
| 2108 | ||
| 2109 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2110 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2111 | 16, /* rightshift */ | |
| 2112 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2113 | 16, /* bitsize */ | |
| 2114 | FALSE, /* pc_relative */ | |
| 2115 | 0, /* bitpos */ | |
| 2116 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2117 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2118 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2119 | FALSE, /* partial_inplace */ | |
| 2120 | 0, /* src_mask */ | |
| 2121 | 0xffff, /* dst_mask */ | |
| 2122 | FALSE), /* pcrel_offset */ | |
| 2123 | ||
| 2124 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2125 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2126 | 16, /* rightshift */ | |
| 2127 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2128 | 16, /* bitsize */ | |
| 2129 | FALSE, /* pc_relative */ | |
| 2130 | 0, /* bitpos */ | |
| 2131 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2132 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2133 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2134 | FALSE, /* partial_inplace */ | |
| 2135 | 0, /* src_mask */ | |
| 2136 | 0xffff, /* dst_mask */ | |
| 2137 | FALSE), /* pcrel_offset */ | |
| 2138 | ||
| 2139 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2140 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2141 | 16, /* rightshift */ | |
| 2142 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2143 | 16, /* bitsize */ | |
| 2144 | FALSE, /* pc_relative */ | |
| 2145 | 0, /* bitpos */ | |
| 2146 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2147 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2148 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2149 | FALSE, /* partial_inplace */ | |
| 2150 | 0, /* src_mask */ | |
| 2151 | 0xffff, /* dst_mask */ | |
| 2152 | FALSE), /* pcrel_offset */ | |
| 2153 | ||
| 006589cf AM |
2154 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2155 | HOWTO (R_PPC64_ENTRY, | |
| 2156 | 0, /* rightshift */ | |
| 2157 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2158 | 32, /* bitsize */ | |
| 2159 | FALSE, /* pc_relative */ | |
| 2160 | 0, /* bitpos */ | |
| 2161 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2162 | bfd_elf_generic_reloc, /* special_function */ | |
| 2163 | "R_PPC64_ENTRY", /* name */ | |
| 2164 | FALSE, /* partial_inplace */ | |
| 2165 | 0, /* src_mask */ | |
| 2166 | 0, /* dst_mask */ | |
| 2167 | FALSE), /* pcrel_offset */ | |
| 2168 | ||
| 45965137 AM |
2169 | /* Like ADDR64, but use local entry point of function. */ |
| 2170 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2171 | 0, /* rightshift */ | |
| 2172 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2173 | 64, /* bitsize */ | |
| 2174 | FALSE, /* pc_relative */ | |
| 2175 | 0, /* bitpos */ | |
| 2176 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2177 | bfd_elf_generic_reloc, /* special_function */ | |
| 2178 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2179 | FALSE, /* partial_inplace */ | |
| 2180 | 0, /* src_mask */ | |
| 2181 | ONES (64), /* dst_mask */ | |
| 2182 | FALSE), /* pcrel_offset */ | |
| 2183 | ||
| 5bd4f169 AM |
2184 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2185 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2186 | 0, /* rightshift */ | |
| 2187 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2188 | 0, /* bitsize */ | |
| b34976b6 | 2189 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2190 | 0, /* bitpos */ |
| 2191 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2192 | NULL, /* special_function */ | |
| 2193 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2194 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2195 | 0, /* src_mask */ |
| 2196 | 0, /* dst_mask */ | |
| b34976b6 | 2197 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2198 | |
| 2199 | /* GNU extension to record C++ vtable member usage. */ | |
| 2200 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2201 | 0, /* rightshift */ | |
| 2202 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2203 | 0, /* bitsize */ | |
| b34976b6 | 2204 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2205 | 0, /* bitpos */ |
| 2206 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2207 | NULL, /* special_function */ | |
| 2208 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2209 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2210 | 0, /* src_mask */ |
| 2211 | 0, /* dst_mask */ | |
| b34976b6 | 2212 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2213 | }; |
| 2214 | ||
| 2215 | \f | |
| 2216 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2217 | be done. */ | |
| 2218 | ||
| 2219 | static void | |
| 4ce794b7 | 2220 | ppc_howto_init (void) |
| 5bd4f169 AM |
2221 | { |
| 2222 | unsigned int i, type; | |
| 2223 | ||
| a4b6fadd | 2224 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2225 | { |
| 2226 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2227 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2228 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2229 | } | |
| 2230 | } | |
| 2231 | ||
| 2232 | static reloc_howto_type * | |
| 4ce794b7 AM |
2233 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2234 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2235 | { |
| 411e1bfb | 2236 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2237 | |
| 2238 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2239 | /* Initialize howto table if needed. */ | |
| 2240 | ppc_howto_init (); | |
| 2241 | ||
| 4ce794b7 | 2242 | switch (code) |
| 5bd4f169 AM |
2243 | { |
| 2244 | default: | |
| 4ce794b7 | 2245 | return NULL; |
| 5bd4f169 | 2246 | |
| 411e1bfb AM |
2247 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2248 | break; | |
| 2249 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2250 | break; | |
| 2251 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2252 | break; | |
| 2253 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2254 | break; | |
| 2255 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2256 | break; | |
| 2257 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2258 | break; | |
| f9c6b907 AM |
2259 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2260 | break; | |
| 411e1bfb | 2261 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2262 | break; |
| f9c6b907 AM |
2263 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2264 | break; | |
| 411e1bfb | 2265 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2284 | break; |
| 411e1bfb | 2285 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2286 | break; |
| 411e1bfb | 2287 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2288 | break; |
| 411e1bfb | 2289 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2296 | break; |
| 411e1bfb | 2297 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2298 | break; |
| 411e1bfb | 2299 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2300 | break; |
| 411e1bfb | 2301 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2302 | break; |
| 411e1bfb | 2303 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2316 | break; |
| 411e1bfb | 2317 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2318 | break; |
| 411e1bfb | 2319 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2320 | break; |
| 411e1bfb | 2321 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2328 | break; |
| 411e1bfb | 2329 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2330 | break; |
| 411e1bfb | 2331 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2332 | break; |
| 411e1bfb | 2333 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2334 | break; |
| 411e1bfb | 2335 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb | 2337 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2338 | break; |
| 411e1bfb | 2339 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2340 | break; |
| 411e1bfb | 2341 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2342 | break; |
| 411e1bfb | 2343 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2344 | break; |
| 411e1bfb | 2345 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2346 | break; |
| 411e1bfb | 2347 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2348 | break; |
| 411e1bfb | 2349 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2350 | break; |
| 411e1bfb | 2351 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2352 | break; |
| 411e1bfb | 2353 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2354 | break; |
| 411e1bfb | 2355 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2356 | break; |
| 411e1bfb | 2357 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2358 | break; |
| 411e1bfb | 2359 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2360 | break; |
| 411e1bfb | 2361 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2362 | break; |
| 411e1bfb | 2363 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2364 | break; |
| 411e1bfb | 2365 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2366 | break; |
| 411e1bfb | 2367 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2368 | break; |
| 411e1bfb | 2369 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2370 | break; |
| 727fc41e AM |
2371 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2372 | break; | |
| 2373 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2374 | break; | |
| 411e1bfb | 2375 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2376 | break; |
| 411e1bfb | 2377 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2378 | break; |
| 411e1bfb | 2379 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2380 | break; |
| 411e1bfb | 2381 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2382 | break; |
| f9c6b907 AM |
2383 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2384 | break; | |
| 411e1bfb | 2385 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2386 | break; |
| f9c6b907 AM |
2387 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2388 | break; | |
| 411e1bfb | 2389 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2390 | break; |
| 411e1bfb AM |
2391 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2392 | break; | |
| 2393 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2394 | break; | |
| 2395 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2396 | break; | |
| f9c6b907 AM |
2397 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2398 | break; | |
| 411e1bfb AM |
2399 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2400 | break; | |
| f9c6b907 AM |
2401 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2402 | break; | |
| 411e1bfb AM |
2403 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2404 | break; | |
| 2405 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2406 | break; | |
| 2407 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2408 | break; | |
| 2409 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2410 | break; | |
| 2411 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2412 | break; | |
| 2413 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2414 | break; | |
| 2415 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2416 | break; | |
| 2417 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2418 | break; | |
| 2419 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2420 | break; | |
| 2421 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2422 | break; | |
| 2423 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2424 | break; | |
| 2425 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2426 | break; | |
| 2427 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2428 | break; | |
| 2429 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2430 | break; | |
| 2431 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2432 | break; | |
| 2433 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2434 | break; | |
| 2435 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2436 | break; | |
| 2437 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2438 | break; | |
| 2439 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2440 | break; | |
| 2441 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2442 | break; | |
| 2443 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2444 | break; | |
| 2445 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2446 | break; | |
| 2447 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2448 | break; | |
| 2449 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2450 | break; | |
| 2451 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2452 | break; | |
| 2453 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2454 | break; | |
| 2455 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2456 | break; | |
| 2457 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2458 | break; | |
| 2459 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2460 | break; | |
| 25f23106 AM |
2461 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2462 | break; | |
| 2463 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2464 | break; | |
| 2465 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2466 | break; | |
| 2467 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2468 | break; | |
| 7ba71655 AM |
2469 | case BFD_RELOC_PPC_16DX_HA: r = R_PPC64_16DX_HA; |
| 2470 | break; | |
| a680de9a PB |
2471 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2472 | break; | |
| 006589cf AM |
2473 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2474 | break; | |
| 45965137 AM |
2475 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2476 | break; | |
| 411e1bfb AM |
2477 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2478 | break; | |
| 2479 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2480 | break; |
| 2481 | } | |
| 2482 | ||
| 4ce794b7 | 2483 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2484 | }; |
| 2485 | ||
| 157090f7 AM |
2486 | static reloc_howto_type * |
| 2487 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2488 | const char *r_name) | |
| 2489 | { | |
| 2490 | unsigned int i; | |
| 2491 | ||
| a4b6fadd | 2492 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2493 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2494 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2495 | return &ppc64_elf_howto_raw[i]; | |
| 2496 | ||
| 2497 | return NULL; | |
| 2498 | } | |
| 2499 | ||
| 5bd4f169 AM |
2500 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2501 | ||
| 2502 | static void | |
| 4aef7643 | 2503 | ppc64_elf_info_to_howto (bfd *abfd, arelent *cache_ptr, |
| 4ce794b7 | 2504 | Elf_Internal_Rela *dst) |
| 5bd4f169 | 2505 | { |
| 65f38f15 AM |
2506 | unsigned int type; |
| 2507 | ||
| ef60b7ff | 2508 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2509 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2510 | ppc_howto_init (); |
| 2511 | ||
| 65f38f15 | 2512 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2513 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d | 2514 | { |
| 695344c0 | 2515 | /* xgettext:c-format */ |
| 4eca0228 AM |
2516 | _bfd_error_handler (_("%B: invalid relocation type %d"), |
| 2517 | abfd, (int) type); | |
| 3ec2b351 | 2518 | type = R_PPC64_NONE; |
| d0fb9a8d | 2519 | } |
| 65f38f15 | 2520 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2521 | } |
| 2522 | ||
| 04c9666a | 2523 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2524 | |
| 2525 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2526 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2527 | void *data, asection *input_section, | |
| 2528 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2529 | { |
| a680de9a PB |
2530 | enum elf_ppc64_reloc_type r_type; |
| 2531 | long insn; | |
| 2532 | bfd_size_type octets; | |
| 3de43e7b | 2533 | bfd_vma value; |
| a680de9a | 2534 | |
| 805fc799 AM |
2535 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2536 | call the generic function. Any adjustment will be done at final | |
| 2537 | link time. */ | |
| 2538 | if (output_bfd != NULL) | |
| cedb70c5 | 2539 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2540 | input_section, output_bfd, error_message); |
| 2541 | ||
| 2542 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2543 | We won't actually be using the low 16 bits, so trashing them | |
| 2544 | doesn't matter. */ | |
| 2545 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2546 | r_type = reloc_entry->howto->type; |
| 2547 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2548 | return bfd_reloc_continue; | |
| 2549 | ||
| 2550 | value = 0; | |
| 2551 | if (!bfd_is_com_section (symbol->section)) | |
| 2552 | value = symbol->value; | |
| 2553 | value += (reloc_entry->addend | |
| 2554 | + symbol->section->output_offset | |
| 2555 | + symbol->section->output_section->vma); | |
| 2556 | value -= (reloc_entry->address | |
| 2557 | + input_section->output_offset | |
| 2558 | + input_section->output_section->vma); | |
| 3de43e7b | 2559 | value = (bfd_signed_vma) value >> 16; |
| a680de9a PB |
2560 | |
| 2561 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2562 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2563 | insn &= ~0x1fffc1; | |
| 3de43e7b | 2564 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); |
| a680de9a | 2565 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 3de43e7b | 2566 | if (value + 0x8000 > 0xffff) |
| a680de9a PB |
2567 | return bfd_reloc_overflow; |
| 2568 | return bfd_reloc_ok; | |
| 805fc799 | 2569 | } |
| 5bd4f169 | 2570 | |
| 2441e016 AM |
2571 | static bfd_reloc_status_type |
| 2572 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2573 | void *data, asection *input_section, | |
| 2574 | bfd *output_bfd, char **error_message) | |
| 2575 | { | |
| 2576 | if (output_bfd != NULL) | |
| 2577 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2578 | input_section, output_bfd, error_message); | |
| 2579 | ||
| 699733f6 AM |
2580 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2581 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2582 | { |
| 2583 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2584 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2585 | NULL, NULL, FALSE); |
| 2441e016 AM |
2586 | if (dest != (bfd_vma) -1) |
| 2587 | reloc_entry->addend = dest - (symbol->value | |
| 2588 | + symbol->section->output_section->vma | |
| 2589 | + symbol->section->output_offset); | |
| 2590 | } | |
| 810d4e75 AM |
2591 | else |
| 2592 | { | |
| 2593 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2594 | ||
| 2595 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2596 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2597 | && abiversion (symbol->section->owner) >= 2) |
| 2598 | { | |
| 2599 | unsigned int i; | |
| 2600 | ||
| 2601 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2602 | { | |
| 2603 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2604 | ||
| 2605 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2606 | { | |
| 2607 | elfsym = (elf_symbol_type *) symdef; | |
| 2608 | break; | |
| 2609 | } | |
| 2610 | } | |
| 2611 | } | |
| 2612 | reloc_entry->addend | |
| 2613 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2614 | } | |
| 2441e016 AM |
2615 | return bfd_reloc_continue; |
| 2616 | } | |
| 2617 | ||
| 805fc799 | 2618 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2619 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2620 | void *data, asection *input_section, | |
| 2621 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2622 | { |
| 2623 | long insn; | |
| 04c9666a | 2624 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2625 | bfd_size_type octets; |
| 794e51c0 AM |
2626 | /* Assume 'at' branch hints. */ |
| 2627 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2628 | |
| 2629 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2630 | call the generic function. Any adjustment will be done at final | |
| 2631 | link time. */ | |
| 5bd4f169 | 2632 | if (output_bfd != NULL) |
| cedb70c5 | 2633 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2634 | input_section, output_bfd, error_message); |
| 2635 | ||
| 2636 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2637 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2638 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2639 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2640 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2641 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2642 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2643 | |
| 794e51c0 | 2644 | if (is_isa_v2) |
| 5bd4f169 | 2645 | { |
| 805fc799 AM |
2646 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2647 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2648 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2649 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2650 | insn |= 0x02 << 21; | |
| 2651 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2652 | insn |= 0x08 << 21; | |
| 2653 | else | |
| 2441e016 | 2654 | goto out; |
| 5bd4f169 | 2655 | } |
| 805fc799 AM |
2656 | else |
| 2657 | { | |
| 2658 | bfd_vma target = 0; | |
| 2659 | bfd_vma from; | |
| 5bd4f169 | 2660 | |
| 805fc799 AM |
2661 | if (!bfd_is_com_section (symbol->section)) |
| 2662 | target = symbol->value; | |
| 2663 | target += symbol->section->output_section->vma; | |
| 2664 | target += symbol->section->output_offset; | |
| 2665 | target += reloc_entry->addend; | |
| 5bd4f169 | 2666 | |
| 805fc799 AM |
2667 | from = (reloc_entry->address |
| 2668 | + input_section->output_offset | |
| 2669 | + input_section->output_section->vma); | |
| 5bd4f169 | 2670 | |
| 805fc799 AM |
2671 | /* Invert 'y' bit if not the default. */ |
| 2672 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2673 | insn ^= 0x01 << 21; | |
| 2674 | } | |
| 4ce794b7 | 2675 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2676 | out: |
| 2677 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2678 | input_section, output_bfd, error_message); | |
| 805fc799 | 2679 | } |
| 5bd4f169 | 2680 | |
| 805fc799 | 2681 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2682 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2683 | void *data, asection *input_section, | |
| 2684 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2685 | { |
| 2686 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2687 | call the generic function. Any adjustment will be done at final | |
| 2688 | link time. */ | |
| 2689 | if (output_bfd != NULL) | |
| cedb70c5 | 2690 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2691 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2692 | |
| 805fc799 AM |
2693 | /* Subtract the symbol section base address. */ |
| 2694 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2695 | return bfd_reloc_continue; |
| 2696 | } | |
| 2697 | ||
| 805fc799 | 2698 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2699 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2700 | void *data, asection *input_section, | |
| 2701 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2702 | { |
| 2703 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2704 | call the generic function. Any adjustment will be done at final | |
| 2705 | link time. */ | |
| 2706 | if (output_bfd != NULL) | |
| cedb70c5 | 2707 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2708 | input_section, output_bfd, error_message); |
| 2709 | ||
| 2710 | /* Subtract the symbol section base address. */ | |
| 2711 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2712 | ||
| 2713 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2714 | reloc_entry->addend += 0x8000; | |
| 2715 | return bfd_reloc_continue; | |
| 2716 | } | |
| 2717 | ||
| 2718 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2719 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2720 | void *data, asection *input_section, | |
| 2721 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2722 | { |
| 2723 | bfd_vma TOCstart; | |
| 2724 | ||
| 2725 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2726 | call the generic function. Any adjustment will be done at final | |
| 2727 | link time. */ | |
| 2728 | if (output_bfd != NULL) | |
| cedb70c5 | 2729 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2730 | input_section, output_bfd, error_message); |
| 2731 | ||
| 2732 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2733 | if (TOCstart == 0) | |
| 1c865ab2 | 2734 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2735 | |
| 2736 | /* Subtract the TOC base address. */ | |
| 2737 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2738 | return bfd_reloc_continue; | |
| 2739 | } | |
| 2740 | ||
| 2741 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2742 | ppc64_elf_toc_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2743 | void *data, asection *input_section, | |
| 2744 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2745 | { |
| 2746 | bfd_vma TOCstart; | |
| 2747 | ||
| 2748 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2749 | call the generic function. Any adjustment will be done at final | |
| 2750 | link time. */ | |
| 2751 | if (output_bfd != NULL) | |
| cedb70c5 | 2752 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2753 | input_section, output_bfd, error_message); |
| 2754 | ||
| 2755 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2756 | if (TOCstart == 0) | |
| 1c865ab2 | 2757 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2758 | |
| 2759 | /* Subtract the TOC base address. */ | |
| 2760 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2761 | ||
| 2762 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2763 | reloc_entry->addend += 0x8000; | |
| 2764 | return bfd_reloc_continue; | |
| 2765 | } | |
| 2766 | ||
| 2767 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2768 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2769 | void *data, asection *input_section, | |
| 2770 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2771 | { |
| 2772 | bfd_vma TOCstart; | |
| 2773 | bfd_size_type octets; | |
| 2774 | ||
| 2775 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2776 | call the generic function. Any adjustment will be done at final | |
| 2777 | link time. */ | |
| 2778 | if (output_bfd != NULL) | |
| cedb70c5 | 2779 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2780 | input_section, output_bfd, error_message); |
| 2781 | ||
| 2782 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2783 | if (TOCstart == 0) | |
| 1c865ab2 | 2784 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2785 | |
| 2786 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2787 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2788 | return bfd_reloc_ok; | |
| 2789 | } | |
| 2790 | ||
| 2791 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2792 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2793 | void *data, asection *input_section, | |
| 2794 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2795 | { |
| 2796 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2797 | call the generic function. Any adjustment will be done at final | |
| 2798 | link time. */ | |
| 2799 | if (output_bfd != NULL) | |
| cedb70c5 | 2800 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2801 | input_section, output_bfd, error_message); |
| 2802 | ||
| 2803 | if (error_message != NULL) | |
| 2804 | { | |
| 2805 | static char buf[60]; | |
| 2806 | sprintf (buf, "generic linker can't handle %s", | |
| 2807 | reloc_entry->howto->name); | |
| 2808 | *error_message = buf; | |
| 2809 | } | |
| 2810 | return bfd_reloc_dangerous; | |
| 2811 | } | |
| 2812 | ||
| 927be08e AM |
2813 | /* Track GOT entries needed for a given symbol. We might need more |
| 2814 | than one got entry per symbol. */ | |
| 2815 | struct got_entry | |
| 2816 | { | |
| 2817 | struct got_entry *next; | |
| 2818 | ||
| 2819 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2820 | bfd_vma addend; | |
| 2821 | ||
| 2822 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2823 | symbol referenced from different input files. This is to support | |
| 2824 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2825 | from one input file to another. After partitioning into TOC groups | |
| 2826 | we merge entries within the group. | |
| 2827 | ||
| 2828 | Point to the BFD owning this GOT entry. */ | |
| 2829 | bfd *owner; | |
| 2830 | ||
| 2831 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2832 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2833 | unsigned char tls_type; |
| 927be08e AM |
2834 | |
| 2835 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2836 | unsigned char is_indirect; |
| 927be08e AM |
2837 | |
| 2838 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2839 | union | |
| 2840 | { | |
| 2841 | bfd_signed_vma refcount; | |
| 2842 | bfd_vma offset; | |
| 2843 | struct got_entry *ent; | |
| 2844 | } got; | |
| 2845 | }; | |
| 2846 | ||
| 2847 | /* The same for PLT. */ | |
| 2848 | struct plt_entry | |
| 2849 | { | |
| 2850 | struct plt_entry *next; | |
| 2851 | ||
| 2852 | bfd_vma addend; | |
| 2853 | ||
| 2854 | union | |
| 2855 | { | |
| 2856 | bfd_signed_vma refcount; | |
| 2857 | bfd_vma offset; | |
| 2858 | } plt; | |
| 2859 | }; | |
| 2860 | ||
| e717da7e AM |
2861 | struct ppc64_elf_obj_tdata |
| 2862 | { | |
| 2863 | struct elf_obj_tdata elf; | |
| 2864 | ||
| 2865 | /* Shortcuts to dynamic linker sections. */ | |
| 2866 | asection *got; | |
| 2867 | asection *relgot; | |
| 2868 | ||
| b3fac117 AM |
2869 | /* Used during garbage collection. We attach global symbols defined |
| 2870 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2871 | asection *deleted_section; | |
| 81688140 | 2872 | |
| 927be08e | 2873 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2874 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2875 | struct got_entry tlsld_got; |
| 8860955f | 2876 | |
| 729eabd5 AM |
2877 | union { |
| 2878 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2879 | Elf_Internal_Rela *relocs; | |
| 2880 | ||
| 2881 | /* Section contents. */ | |
| 2882 | bfd_byte *contents; | |
| 2883 | } opd; | |
| d77c8a4b AM |
2884 | |
| 2885 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2886 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2887 | unsigned int has_small_toc_reloc : 1; |
| 2888 | ||
| 560c8763 AM |
2889 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2890 | instruction not one we handle. */ | |
| 2891 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2892 | }; |
| 2893 | ||
| 2894 | #define ppc64_elf_tdata(bfd) \ | |
| 2895 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2896 | ||
| 2897 | #define ppc64_tlsld_got(bfd) \ | |
| 2898 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2899 | ||
| 0c8d6e5c AM |
2900 | #define is_ppc64_elf(bfd) \ |
| 2901 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2902 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2903 | |
| e717da7e AM |
2904 | /* Override the generic function because we store some extras. */ |
| 2905 | ||
| 2906 | static bfd_boolean | |
| 2907 | ppc64_elf_mkobject (bfd *abfd) | |
| 2908 | { | |
| 0ffa91dd | 2909 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2910 | PPC64_ELF_DATA); |
| e717da7e AM |
2911 | } |
| 2912 | ||
| feee612b | 2913 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2914 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2915 | |
| b34976b6 | 2916 | static bfd_boolean |
| 4ce794b7 | 2917 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2918 | { |
| 14b57c7c AM |
2919 | if (!abfd->arch_info->the_default) |
| 2920 | return TRUE; | |
| 2921 | ||
| 2922 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2923 | { |
| 2924 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2925 | ||
| 2926 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2927 | { | |
| 2928 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2929 | abfd->arch_info = abfd->arch_info->next; | |
| 2930 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2931 | } | |
| 2932 | } | |
| 14b57c7c | 2933 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2934 | } |
| 2935 | ||
| d37c89e5 AM |
2936 | /* Support for core dump NOTE sections. */ |
| 2937 | ||
| 2938 | static bfd_boolean | |
| 2939 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2940 | { | |
| eea6121a | 2941 | size_t offset, size; |
| d37c89e5 AM |
2942 | |
| 2943 | if (note->descsz != 504) | |
| 2944 | return FALSE; | |
| 2945 | ||
| 2946 | /* pr_cursig */ | |
| 228e534f | 2947 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2948 | |
| 2949 | /* pr_pid */ | |
| 228e534f | 2950 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2951 | |
| 2952 | /* pr_reg */ | |
| 2953 | offset = 112; | |
| eea6121a | 2954 | size = 384; |
| d37c89e5 AM |
2955 | |
| 2956 | /* Make a ".reg/999" section. */ | |
| 2957 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2958 | size, note->descpos + offset); |
| d37c89e5 AM |
2959 | } |
| 2960 | ||
| 2961 | static bfd_boolean | |
| 2962 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2963 | { | |
| 2964 | if (note->descsz != 136) | |
| 2965 | return FALSE; | |
| 2966 | ||
| 228e534f | 2967 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2968 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2969 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2970 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2971 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2972 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2973 | ||
| 2974 | return TRUE; | |
| 2975 | } | |
| 2976 | ||
| 183e98be AM |
2977 | static char * |
| 2978 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2979 | ...) | |
| 2980 | { | |
| 2981 | switch (note_type) | |
| 2982 | { | |
| 2983 | default: | |
| 2984 | return NULL; | |
| 2985 | ||
| 2986 | case NT_PRPSINFO: | |
| 2987 | { | |
| 2988 | char data[136]; | |
| 2989 | va_list ap; | |
| 2990 | ||
| 2991 | va_start (ap, note_type); | |
| 75cd47ed | 2992 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2993 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2994 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2995 | va_end (ap); | |
| 2996 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2997 | "CORE", note_type, data, sizeof (data)); | |
| 2998 | } | |
| 2999 | ||
| 3000 | case NT_PRSTATUS: | |
| 3001 | { | |
| 3002 | char data[504]; | |
| 3003 | va_list ap; | |
| 3004 | long pid; | |
| 3005 | int cursig; | |
| 3006 | const void *greg; | |
| 3007 | ||
| 3008 | va_start (ap, note_type); | |
| 3009 | memset (data, 0, 112); | |
| 3010 | pid = va_arg (ap, long); | |
| 3011 | bfd_put_32 (abfd, pid, data + 32); | |
| 3012 | cursig = va_arg (ap, int); | |
| 3013 | bfd_put_16 (abfd, cursig, data + 12); | |
| 3014 | greg = va_arg (ap, const void *); | |
| 3015 | memcpy (data + 112, greg, 384); | |
| 3016 | memset (data + 496, 0, 8); | |
| 3017 | va_end (ap); | |
| 3018 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 3019 | "CORE", note_type, data, sizeof (data)); | |
| 3020 | } | |
| 3021 | } | |
| 3022 | } | |
| 3023 | ||
| 5d35169e AM |
3024 | /* Add extra PPC sections. */ |
| 3025 | ||
| b35d266b | 3026 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3027 | { |
| 0112cd26 NC |
3028 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3029 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3030 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3031 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3032 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3033 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3034 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
3035 | }; |
| 3036 | ||
| 7c8fe5c4 AM |
3037 | enum _ppc64_sec_type { |
| 3038 | sec_normal = 0, | |
| 3039 | sec_opd = 1, | |
| 3040 | sec_toc = 2 | |
| 3041 | }; | |
| 3042 | ||
| f0abc2a1 AM |
3043 | struct _ppc64_elf_section_data |
| 3044 | { | |
| 3045 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3046 | |
| f0abc2a1 AM |
3047 | union |
| 3048 | { | |
| 51aecdc5 AM |
3049 | /* An array with one entry for each opd function descriptor, |
| 3050 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3051 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3052 | struct _opd_sec_data |
| 3053 | { | |
| 3054 | /* Points to the function code section for local opd entries. */ | |
| 3055 | asection **func_sec; | |
| 3056 | ||
| 3057 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3058 | long *adjust; | |
| 3059 | } opd; | |
| 7c8fe5c4 | 3060 | |
| 3a71aa26 AM |
3061 | /* An array for toc sections, indexed by offset/8. */ |
| 3062 | struct _toc_sec_data | |
| 3063 | { | |
| 3064 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3065 | unsigned *symndx; | |
| 3066 | ||
| 3067 | /* And the relocation addend. */ | |
| 3068 | bfd_vma *add; | |
| 3069 | } toc; | |
| 7c8fe5c4 AM |
3070 | } u; |
| 3071 | ||
| 3072 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3073 | |
| 7c8fe5c4 AM |
3074 | /* Flag set when small branches are detected. Used to |
| 3075 | select suitable defaults for the stub group size. */ | |
| 3076 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3077 | }; |
| 3078 | ||
| 3079 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3080 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3081 | |
| 3082 | static bfd_boolean | |
| 4ce794b7 | 3083 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3084 | { |
| f592407e AM |
3085 | if (!sec->used_by_bfd) |
| 3086 | { | |
| 3087 | struct _ppc64_elf_section_data *sdata; | |
| 3088 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3089 | |
| f592407e AM |
3090 | sdata = bfd_zalloc (abfd, amt); |
| 3091 | if (sdata == NULL) | |
| 3092 | return FALSE; | |
| 3093 | sec->used_by_bfd = sdata; | |
| 3094 | } | |
| f0abc2a1 AM |
3095 | |
| 3096 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3097 | } | |
| 4025353c | 3098 | |
| 74f0fb50 | 3099 | static struct _opd_sec_data * |
| 4025353c AM |
3100 | get_opd_info (asection * sec) |
| 3101 | { | |
| 3102 | if (sec != NULL | |
| 3103 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3104 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3105 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3106 | return NULL; |
| 3107 | } | |
| 90e3cdf2 JJ |
3108 | \f |
| 3109 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 | 3110 | static bfd_boolean synthetic_relocatable; |
| cd285db5 | 3111 | static asection *synthetic_opd; |
| 90e3cdf2 | 3112 | |
| 699733f6 | 3113 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3114 | |
| 3115 | static int | |
| 3116 | compare_symbols (const void *ap, const void *bp) | |
| 3117 | { | |
| 3118 | const asymbol *a = * (const asymbol **) ap; | |
| 3119 | const asymbol *b = * (const asymbol **) bp; | |
| 3120 | ||
| 699733f6 AM |
3121 | /* Section symbols first. */ |
| 3122 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3123 | return -1; |
| 699733f6 | 3124 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3125 | return 1; |
| 3126 | ||
| 699733f6 | 3127 | /* then .opd symbols. */ |
| cd285db5 AM |
3128 | if (synthetic_opd != NULL) |
| 3129 | { | |
| 3130 | if (strcmp (a->section->name, ".opd") == 0 | |
| 3131 | && strcmp (b->section->name, ".opd") != 0) | |
| 3132 | return -1; | |
| 3133 | if (strcmp (a->section->name, ".opd") != 0 | |
| 3134 | && strcmp (b->section->name, ".opd") == 0) | |
| 3135 | return 1; | |
| 3136 | } | |
| 90e3cdf2 | 3137 | |
| 699733f6 | 3138 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3139 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3140 | == (SEC_CODE | SEC_ALLOC) | |
| 3141 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3142 | != (SEC_CODE | SEC_ALLOC)) | |
| 3143 | return -1; | |
| 3144 | ||
| 3145 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3146 | != (SEC_CODE | SEC_ALLOC) | |
| 3147 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3148 | == (SEC_CODE | SEC_ALLOC)) | |
| 3149 | return 1; | |
| 3150 | ||
| 3151 | if (synthetic_relocatable) | |
| 3152 | { | |
| 3153 | if (a->section->id < b->section->id) | |
| 3154 | return -1; | |
| 3155 | ||
| 3156 | if (a->section->id > b->section->id) | |
| 3157 | return 1; | |
| 3158 | } | |
| 3159 | ||
| 3160 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3161 | return -1; | |
| 3162 | ||
| 3163 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3164 | return 1; | |
| 3165 | ||
| 4d35a0aa AM |
3166 | /* For syms with the same value, prefer strong dynamic global function |
| 3167 | syms over other syms. */ | |
| 3168 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3169 | return -1; | |
| 3170 | ||
| 3171 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3172 | return 1; | |
| 3173 | ||
| 3174 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3175 | return -1; | |
| 3176 | ||
| 3177 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3178 | return 1; | |
| 3179 | ||
| 3180 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3181 | return -1; | |
| 3182 | ||
| 3183 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3184 | return 1; | |
| 3185 | ||
| 3186 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3187 | return -1; | |
| 3188 | ||
| 3189 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3190 | return 1; | |
| 3191 | ||
| aaed6f5b | 3192 | return a > b; |
| 90e3cdf2 JJ |
3193 | } |
| 3194 | ||
| 699733f6 | 3195 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3196 | |
| 699733f6 | 3197 | static asymbol * |
| 7292b3ac | 3198 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3199 | { |
| 699733f6 | 3200 | long mid; |
| 90e3cdf2 | 3201 | |
| 7292b3ac | 3202 | if (id == (unsigned) -1) |
| 699733f6 AM |
3203 | { |
| 3204 | while (lo < hi) | |
| 3205 | { | |
| 3206 | mid = (lo + hi) >> 1; | |
| 3207 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3208 | lo = mid + 1; | |
| 3209 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3210 | hi = mid; | |
| 3211 | else | |
| 3212 | return syms[mid]; | |
| 3213 | } | |
| 3214 | } | |
| 3215 | else | |
| 3216 | { | |
| 3217 | while (lo < hi) | |
| 3218 | { | |
| 3219 | mid = (lo + hi) >> 1; | |
| 3220 | if (syms[mid]->section->id < id) | |
| 3221 | lo = mid + 1; | |
| 3222 | else if (syms[mid]->section->id > id) | |
| 3223 | hi = mid; | |
| 3224 | else if (syms[mid]->value < value) | |
| 3225 | lo = mid + 1; | |
| 3226 | else if (syms[mid]->value > value) | |
| 3227 | hi = mid; | |
| 3228 | else | |
| 3229 | return syms[mid]; | |
| 3230 | } | |
| 3231 | } | |
| 3232 | return NULL; | |
| 90e3cdf2 JJ |
3233 | } |
| 3234 | ||
| 468392fb AM |
3235 | static bfd_boolean |
| 3236 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3237 | { | |
| 3238 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3239 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3240 | && section->vma <= vma | |
| 3241 | && vma < section->vma + section->size); | |
| 3242 | } | |
| 3243 | ||
| 699733f6 | 3244 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3245 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3246 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3247 | |
| 3248 | static long | |
| a7535cf3 AM |
3249 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3250 | long static_count, asymbol **static_syms, | |
| 3251 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3252 | asymbol **ret) |
| 90e3cdf2 JJ |
3253 | { |
| 3254 | asymbol *s; | |
| 699733f6 AM |
3255 | long i; |
| 3256 | long count; | |
| 90e3cdf2 | 3257 | char *names; |
| a7535cf3 | 3258 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3259 | asection *opd = NULL; |
| 90e3cdf2 | 3260 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3261 | asymbol **syms; |
| ee67d69a | 3262 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3263 | |
| 3264 | *ret = NULL; | |
| 3265 | ||
| ee67d69a AM |
3266 | if (abi < 2) |
| 3267 | { | |
| 3268 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3269 | if (opd == NULL && abi == 1) | |
| 3270 | return 0; | |
| 3271 | } | |
| 90e3cdf2 | 3272 | |
| a5259595 AM |
3273 | syms = NULL; |
| 3274 | codesecsym = 0; | |
| 3275 | codesecsymend = 0; | |
| 3276 | secsymend = 0; | |
| 3277 | opdsymend = 0; | |
| 3278 | symcount = 0; | |
| 3279 | if (opd != NULL) | |
| c9727e01 | 3280 | { |
| a5259595 AM |
3281 | symcount = static_count; |
| 3282 | if (!relocatable) | |
| 3283 | symcount += dyn_count; | |
| 3284 | if (symcount == 0) | |
| 3285 | return 0; | |
| c9727e01 | 3286 | |
| a5259595 AM |
3287 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3288 | if (syms == NULL) | |
| 3289 | return -1; | |
| 90e3cdf2 | 3290 | |
| a5259595 AM |
3291 | if (!relocatable && static_count != 0 && dyn_count != 0) |
| 3292 | { | |
| 3293 | /* Use both symbol tables. */ | |
| 3294 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3295 | memcpy (syms + static_count, dyn_syms, | |
| 3296 | (dyn_count + 1) * sizeof (*syms)); | |
| 3297 | } | |
| 3298 | else if (!relocatable && static_count == 0) | |
| 3299 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3300 | else | |
| 3301 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 90e3cdf2 | 3302 | |
| a5259595 AM |
3303 | synthetic_relocatable = relocatable; |
| 3304 | synthetic_opd = opd; | |
| 3305 | qsort (syms, symcount, sizeof (*syms), compare_symbols); | |
| 90e3cdf2 | 3306 | |
| a5259595 AM |
3307 | if (!relocatable && symcount > 1) |
| 3308 | { | |
| 3309 | long j; | |
| 3310 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3311 | dynamic symbols. Actually, we only care about syms that have | |
| 3312 | different values, so trim any with the same value. */ | |
| 3313 | for (i = 1, j = 1; i < symcount; ++i) | |
| 3314 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3315 | != syms[i]->value + syms[i]->section->vma) | |
| 3316 | syms[j++] = syms[i]; | |
| 3317 | symcount = j; | |
| 3318 | } | |
| 699733f6 | 3319 | |
| a5259595 AM |
3320 | i = 0; |
| 3321 | /* Note that here and in compare_symbols we can't compare opd and | |
| 3322 | sym->section directly. With separate debug info files, the | |
| 3323 | symbols will be extracted from the debug file while abfd passed | |
| 3324 | to this function is the real binary. */ | |
| 3325 | if (opd != NULL && strcmp (syms[i]->section->name, ".opd") == 0) | |
| 3326 | ++i; | |
| 3327 | codesecsym = i; | |
| 3328 | ||
| 3329 | for (; i < symcount; ++i) | |
| 3330 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | |
| 3331 | | SEC_THREAD_LOCAL)) | |
| 3332 | != (SEC_CODE | SEC_ALLOC)) | |
| 3333 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3334 | break; | |
| 3335 | codesecsymend = i; | |
| 3336 | ||
| 3337 | for (; i < symcount; ++i) | |
| 3338 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3339 | break; | |
| 3340 | secsymend = i; | |
| 3341 | ||
| 3342 | for (; i < symcount; ++i) | |
| 3343 | if (strcmp (syms[i]->section->name, ".opd") != 0) | |
| 3344 | break; | |
| 3345 | opdsymend = i; | |
| 3346 | ||
| 3347 | for (; i < symcount; ++i) | |
| 3348 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3349 | != (SEC_CODE | SEC_ALLOC)) | |
| 3350 | break; | |
| 3351 | symcount = i; | |
| 3352 | } | |
| c9727e01 | 3353 | count = 0; |
| 90e3cdf2 | 3354 | |
| 699733f6 | 3355 | if (relocatable) |
| 90e3cdf2 | 3356 | { |
| 699733f6 AM |
3357 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3358 | arelent *r; | |
| 3359 | size_t size; | |
| 3360 | long relcount; | |
| 90e3cdf2 | 3361 | |
| 468392fb AM |
3362 | if (opdsymend == secsymend) |
| 3363 | goto done; | |
| 3364 | ||
| 699733f6 | 3365 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3366 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3367 | if (relcount == 0) |
| c9727e01 | 3368 | goto done; |
| 90e3cdf2 | 3369 | |
| 7356fed5 AM |
3370 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3371 | { | |
| 3372 | count = -1; | |
| 3373 | goto done; | |
| 3374 | } | |
| 3375 | ||
| 699733f6 | 3376 | size = 0; |
| 595da8c5 | 3377 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3378 | { |
| 3379 | asymbol *sym; | |
| 90e3cdf2 | 3380 | |
| 595da8c5 | 3381 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3382 | && r->address < syms[i]->value + opd->vma) |
| 3383 | ++r; | |
| 90e3cdf2 | 3384 | |
| 595da8c5 | 3385 | if (r == opd->relocation + relcount) |
| 699733f6 | 3386 | break; |
| 90e3cdf2 | 3387 | |
| 699733f6 AM |
3388 | if (r->address != syms[i]->value + opd->vma) |
| 3389 | continue; | |
| 90e3cdf2 | 3390 | |
| 699733f6 AM |
3391 | if (r->howto->type != R_PPC64_ADDR64) |
| 3392 | continue; | |
| 90e3cdf2 | 3393 | |
| 699733f6 AM |
3394 | sym = *r->sym_ptr_ptr; |
| 3395 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3396 | sym->section->id, sym->value + r->addend)) | |
| 3397 | { | |
| 3398 | ++count; | |
| 3399 | size += sizeof (asymbol); | |
| 3400 | size += strlen (syms[i]->name) + 2; | |
| 3401 | } | |
| 3402 | } | |
| 90e3cdf2 | 3403 | |
| c4b0b099 AM |
3404 | if (size == 0) |
| 3405 | goto done; | |
| 699733f6 AM |
3406 | s = *ret = bfd_malloc (size); |
| 3407 | if (s == NULL) | |
| 3408 | { | |
| 7356fed5 | 3409 | count = -1; |
| c9727e01 | 3410 | goto done; |
| 699733f6 | 3411 | } |
| 90e3cdf2 | 3412 | |
| 699733f6 | 3413 | names = (char *) (s + count); |
| 90e3cdf2 | 3414 | |
| 595da8c5 | 3415 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3416 | { |
| 699733f6 | 3417 | asymbol *sym; |
| 90e3cdf2 | 3418 | |
| 595da8c5 | 3419 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3420 | && r->address < syms[i]->value + opd->vma) |
| 3421 | ++r; | |
| 90e3cdf2 | 3422 | |
| 595da8c5 | 3423 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3424 | break; |
| 3425 | ||
| 3426 | if (r->address != syms[i]->value + opd->vma) | |
| 3427 | continue; | |
| 3428 | ||
| 3429 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3430 | continue; | |
| 90e3cdf2 | 3431 | |
| 699733f6 AM |
3432 | sym = *r->sym_ptr_ptr; |
| 3433 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3434 | sym->section->id, sym->value + r->addend)) | |
| 3435 | { | |
| 3436 | size_t len; | |
| 3437 | ||
| 3438 | *s = *syms[i]; | |
| 6ba2a415 | 3439 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3440 | s->section = sym->section; |
| 3441 | s->value = sym->value + r->addend; | |
| 3442 | s->name = names; | |
| 3443 | *names++ = '.'; | |
| 3444 | len = strlen (syms[i]->name); | |
| 3445 | memcpy (names, syms[i]->name, len + 1); | |
| 3446 | names += len + 1; | |
| 6f610d07 UW |
3447 | /* Have udata.p point back to the original symbol this |
| 3448 | synthetic symbol was derived from. */ | |
| 3449 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3450 | s++; |
| 3451 | } | |
| 3452 | } | |
| 3453 | } | |
| 3454 | else | |
| 90e3cdf2 | 3455 | { |
| 468392fb | 3456 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3457 | bfd_byte *contents = NULL; |
| 699733f6 | 3458 | size_t size; |
| 468392fb AM |
3459 | long plt_count = 0; |
| 3460 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3461 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3462 | arelent *p; | |
| 90e3cdf2 | 3463 | |
| ee67d69a | 3464 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3465 | { |
| c4b0b099 AM |
3466 | free_contents_and_exit_err: |
| 3467 | count = -1; | |
| ee67d69a | 3468 | free_contents_and_exit: |
| 699733f6 | 3469 | if (contents) |
| ee67d69a | 3470 | free (contents); |
| c9727e01 | 3471 | goto done; |
| 699733f6 | 3472 | } |
| 90e3cdf2 | 3473 | |
| 699733f6 AM |
3474 | size = 0; |
| 3475 | for (i = secsymend; i < opdsymend; ++i) | |
| 3476 | { | |
| 3477 | bfd_vma ent; | |
| 90e3cdf2 | 3478 | |
| 5ef11c02 AM |
3479 | /* Ignore bogus symbols. */ |
| 3480 | if (syms[i]->value > opd->size - 8) | |
| 3481 | continue; | |
| 3482 | ||
| 699733f6 AM |
3483 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3484 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3485 | { | |
| 3486 | ++count; | |
| 3487 | size += sizeof (asymbol); | |
| 3488 | size += strlen (syms[i]->name) + 2; | |
| 3489 | } | |
| 3490 | } | |
| 90e3cdf2 | 3491 | |
| 468392fb | 3492 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3493 | if (dyn_count != 0 |
| 3494 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3495 | { |
| 3496 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3497 | size_t extdynsize; | |
| 3498 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3499 | ||
| 3500 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3501 | goto free_contents_and_exit_err; |
| 468392fb AM |
3502 | |
| 3503 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3504 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3505 | ||
| 3506 | extdyn = dynbuf; | |
| 3507 | extdynend = extdyn + dynamic->size; | |
| 3508 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3509 | { | |
| 3510 | Elf_Internal_Dyn dyn; | |
| 3511 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3512 | ||
| 3513 | if (dyn.d_tag == DT_NULL) | |
| 3514 | break; | |
| 3515 | ||
| 3516 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3517 | { | |
| b9e5796b AM |
3518 | /* The first glink stub starts at offset 32; see |
| 3519 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3520 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3521 | /* The .glink section usually does not survive the final |
| 3522 | link; search for the section (usually .text) where the | |
| 3523 | glink stubs now reside. */ | |
| 3524 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3525 | &glink_vma); | |
| 3526 | break; | |
| 3527 | } | |
| 3528 | } | |
| 3529 | ||
| 3530 | free (dynbuf); | |
| 3531 | } | |
| 3532 | ||
| 3533 | if (glink != NULL) | |
| 3534 | { | |
| 3535 | /* Determine __glink trampoline by reading the relative branch | |
| 3536 | from the first glink stub. */ | |
| 3537 | bfd_byte buf[4]; | |
| b9e5796b AM |
3538 | unsigned int off = 0; |
| 3539 | ||
| 3540 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3541 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3542 | { |
| 3543 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3544 | insn ^= B_DOT; | |
| 3545 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3546 | { |
| 3547 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3548 | break; | |
| 3549 | } | |
| 3550 | off += 4; | |
| 3551 | if (off > 4) | |
| 3552 | break; | |
| 468392fb AM |
3553 | } |
| 3554 | ||
| 3555 | if (resolv_vma) | |
| 3556 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3557 | |
| 066ee829 AM |
3558 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3559 | if (relplt != NULL) | |
| 3560 | { | |
| 3561 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3562 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3563 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3564 | |
| 066ee829 AM |
3565 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3566 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3567 | |
| 066ee829 AM |
3568 | p = relplt->relocation; |
| 3569 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3570 | { |
| 3571 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3572 | if (p->addend != 0) | |
| 3573 | size += sizeof ("+0x") - 1 + 16; | |
| 3574 | } | |
| 066ee829 | 3575 | } |
| 468392fb AM |
3576 | } |
| 3577 | ||
| c4b0b099 AM |
3578 | if (size == 0) |
| 3579 | goto free_contents_and_exit; | |
| 699733f6 AM |
3580 | s = *ret = bfd_malloc (size); |
| 3581 | if (s == NULL) | |
| c4b0b099 | 3582 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3583 | |
| 468392fb | 3584 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3585 | |
| 699733f6 | 3586 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3587 | { |
| 699733f6 | 3588 | bfd_vma ent; |
| 90e3cdf2 | 3589 | |
| 5ef11c02 AM |
3590 | if (syms[i]->value > opd->size - 8) |
| 3591 | continue; | |
| 3592 | ||
| 699733f6 AM |
3593 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3594 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3595 | { |
| c9727e01 | 3596 | long lo, hi; |
| 699733f6 | 3597 | size_t len; |
| c9727e01 | 3598 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3599 | |
| 699733f6 AM |
3600 | *s = *syms[i]; |
| 3601 | lo = codesecsym; | |
| 3602 | hi = codesecsymend; | |
| 3603 | while (lo < hi) | |
| 3604 | { | |
| c9727e01 | 3605 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3606 | if (syms[mid]->section->vma < ent) |
| 3607 | lo = mid + 1; | |
| 3608 | else if (syms[mid]->section->vma > ent) | |
| 3609 | hi = mid; | |
| 3610 | else | |
| c9727e01 AM |
3611 | { |
| 3612 | sec = syms[mid]->section; | |
| 3613 | break; | |
| 3614 | } | |
| 699733f6 AM |
3615 | } |
| 3616 | ||
| c9727e01 | 3617 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3618 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3619 | |
| 3620 | for (; sec != NULL; sec = sec->next) | |
| 3621 | { | |
| 3622 | if (sec->vma > ent) | |
| 3623 | break; | |
| 63524580 JK |
3624 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3625 | info file. */ | |
| 3626 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3627 | break; |
| 3628 | if ((sec->flags & SEC_CODE) != 0) | |
| 3629 | s->section = sec; | |
| 3630 | } | |
| 6ba2a415 | 3631 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3632 | s->value = ent - s->section->vma; |
| 3633 | s->name = names; | |
| 3634 | *names++ = '.'; | |
| 3635 | len = strlen (syms[i]->name); | |
| 3636 | memcpy (names, syms[i]->name, len + 1); | |
| 3637 | names += len + 1; | |
| 6f610d07 UW |
3638 | /* Have udata.p point back to the original symbol this |
| 3639 | synthetic symbol was derived from. */ | |
| 3640 | s->udata.p = syms[i]; | |
| 699733f6 | 3641 | s++; |
| 90e3cdf2 | 3642 | } |
| 90e3cdf2 | 3643 | } |
| 699733f6 | 3644 | free (contents); |
| 468392fb AM |
3645 | |
| 3646 | if (glink != NULL && relplt != NULL) | |
| 3647 | { | |
| 3648 | if (resolv_vma) | |
| 3649 | { | |
| 3650 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3651 | memset (s, 0, sizeof *s); |
| 468392fb | 3652 | s->the_bfd = abfd; |
| 6ba2a415 | 3653 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3654 | s->section = glink; |
| 3655 | s->value = resolv_vma - glink->vma; | |
| 3656 | s->name = names; | |
| 3657 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3658 | names += sizeof ("__glink_PLTresolve"); | |
| 3659 | s++; | |
| 3660 | count++; | |
| 3661 | } | |
| 3662 | ||
| 3663 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3664 | stub rather than on the glink branch table entry. The | |
| 3665 | objdump disassembler would then use a sensible symbol | |
| 3666 | name on plt calls. The difficulty in doing so is | |
| 3667 | a) finding the stubs, and, | |
| 3668 | b) matching stubs against plt entries, and, | |
| 3669 | c) there can be multiple stubs for a given plt entry. | |
| 3670 | ||
| 3671 | Solving (a) could be done by code scanning, but older | |
| 3672 | ppc64 binaries used different stubs to current code. | |
| 3673 | (b) is the tricky one since you need to known the toc | |
| 3674 | pointer for at least one function that uses a pic stub to | |
| 3675 | be able to calculate the plt address referenced. | |
| 3676 | (c) means gdb would need to set multiple breakpoints (or | |
| 3677 | find the glink branch itself) when setting breakpoints | |
| 3678 | for pending shared library loads. */ | |
| 3679 | p = relplt->relocation; | |
| 3680 | for (i = 0; i < plt_count; i++, p++) | |
| 3681 | { | |
| 3682 | size_t len; | |
| 3683 | ||
| 3684 | *s = **p->sym_ptr_ptr; | |
| 3685 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3686 | we are defining a symbol, ensure one of them is set. */ | |
| 3687 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3688 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3689 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3690 | s->section = glink; |
| 3691 | s->value = glink_vma - glink->vma; | |
| 3692 | s->name = names; | |
| 3693 | s->udata.p = NULL; | |
| 3694 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3695 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3696 | names += len; | |
| e054468f AM |
3697 | if (p->addend != 0) |
| 3698 | { | |
| 3699 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3700 | names += sizeof ("+0x") - 1; | |
| 3701 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3702 | names += strlen (names); | |
| 3703 | } | |
| 468392fb AM |
3704 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3705 | names += sizeof ("@plt"); | |
| 3706 | s++; | |
| b9e5796b AM |
3707 | if (abi < 2) |
| 3708 | { | |
| 3709 | glink_vma += 8; | |
| 3710 | if (i >= 0x8000) | |
| 3711 | glink_vma += 4; | |
| 3712 | } | |
| 3713 | else | |
| 468392fb AM |
3714 | glink_vma += 4; |
| 3715 | } | |
| 3716 | count += plt_count; | |
| 3717 | } | |
| 90e3cdf2 JJ |
3718 | } |
| 3719 | ||
| c9727e01 | 3720 | done: |
| a7535cf3 | 3721 | free (syms); |
| 90e3cdf2 JJ |
3722 | return count; |
| 3723 | } | |
| 5bd4f169 | 3724 | \f |
| 65f38f15 AM |
3725 | /* The following functions are specific to the ELF linker, while |
| 3726 | functions above are used generally. Those named ppc64_elf_* are | |
| 3727 | called by the main ELF linker code. They appear in this file more | |
| 3728 | or less in the order in which they are called. eg. | |
| 3729 | ppc64_elf_check_relocs is called early in the link process, | |
| 3730 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3731 | called. |
| 3732 | ||
| 3733 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3734 | functions have both a function code symbol and a function descriptor | |
| 3735 | symbol. A call to foo in a relocatable object file looks like: | |
| 3736 | ||
| 3737 | . .text | |
| 3738 | . x: | |
| 3739 | . bl .foo | |
| 3740 | . nop | |
| 3741 | ||
| 3742 | The function definition in another object file might be: | |
| 3743 | ||
| 3744 | . .section .opd | |
| 3745 | . foo: .quad .foo | |
| 3746 | . .quad .TOC.@tocbase | |
| 3747 | . .quad 0 | |
| 3748 | . | |
| 3749 | . .text | |
| 3750 | . .foo: blr | |
| 3751 | ||
| 3752 | When the linker resolves the call during a static link, the branch | |
| 3753 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3754 | If the function definition is in a shared library, things are a little | |
| 3755 | different: The call goes via a plt call stub, the opd information gets | |
| 3756 | copied to the plt, and the linker patches the nop. | |
| 3757 | ||
| 3758 | . x: | |
| 3759 | . bl .foo_stub | |
| 3760 | . ld 2,40(1) | |
| 3761 | . | |
| 3762 | . | |
| 3763 | . .foo_stub: | |
| 71a39c98 AM |
3764 | . std 2,40(1) # in practice, the call stub |
| 3765 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3766 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3767 | . ld 12,0(11) | |
| 3768 | . ld 2,8(11) | |
| 3769 | . mtctr 12 | |
| 3770 | . ld 11,16(11) | |
| e86ce104 AM |
3771 | . bctr |
| 3772 | . | |
| 3773 | . .section .plt | |
| 3774 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3775 | ||
| 3776 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3777 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3778 | copying. | |
| 3779 | ||
| 3780 | What are the difficulties here? Well, firstly, the relocations | |
| 3781 | examined by the linker in check_relocs are against the function code | |
| 3782 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3783 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3784 | to carefully copy dynamic link information from one symbol to the other. | |
| 3785 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3786 | symbol as is normal for most other backends. We need foo dynamic | |
| 3787 | instead, at least for an application final link. However, when | |
| 3788 | creating a shared library containing foo, we need to have both symbols | |
| 3789 | dynamic so that references to .foo are satisfied during the early | |
| 3790 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3791 | definition from some other object, eg. a static library. |
| 3792 | ||
| 3793 | Update: As of August 2004, we support a new convention. Function | |
| 3794 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3795 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3796 | |
| 7c8bbca5 AM |
3797 | /* Of those relocs that might be copied as dynamic relocs, this |
| 3798 | function selects those that must be copied when linking a shared | |
| 3799 | library or PIE, even when the symbol is local. */ | |
| 65f38f15 | 3800 | |
| 1d483afe AM |
3801 | static int |
| 3802 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3803 | enum elf_ppc64_reloc_type r_type) | |
| 3804 | { | |
| 3805 | switch (r_type) | |
| 3806 | { | |
| 3807 | default: | |
| 7c8bbca5 AM |
3808 | /* Only relative relocs can be resolved when the object load |
| 3809 | address isn't fixed. DTPREL64 is excluded because the | |
| 3810 | dynamic linker needs to differentiate global dynamic from | |
| 3811 | local dynamic __tls_index pairs when PPC64_OPT_TLS is set. */ | |
| 1d483afe AM |
3812 | return 1; |
| 3813 | ||
| 3814 | case R_PPC64_REL32: | |
| 3815 | case R_PPC64_REL64: | |
| 3816 | case R_PPC64_REL30: | |
| 3817 | return 0; | |
| 3818 | ||
| 3819 | case R_PPC64_TPREL16: | |
| 3820 | case R_PPC64_TPREL16_LO: | |
| 3821 | case R_PPC64_TPREL16_HI: | |
| 3822 | case R_PPC64_TPREL16_HA: | |
| 3823 | case R_PPC64_TPREL16_DS: | |
| 3824 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3825 | case R_PPC64_TPREL16_HIGH: |
| 3826 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3827 | case R_PPC64_TPREL16_HIGHER: |
| 3828 | case R_PPC64_TPREL16_HIGHERA: | |
| 3829 | case R_PPC64_TPREL16_HIGHEST: | |
| 3830 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3831 | case R_PPC64_TPREL64: | |
| 7c8bbca5 AM |
3832 | /* These relocations are relative but in a shared library the |
| 3833 | linker doesn't know the thread pointer base. */ | |
| 3834 | return bfd_link_dll (info); | |
| 1d483afe AM |
3835 | } |
| 3836 | } | |
| 65f38f15 | 3837 | |
| f4656909 AM |
3838 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3839 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3840 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3841 | shared lib. With code that gcc generates, it's vital that this be |
| 3842 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3843 | the address of a function descriptor, which resides in the .opd | |
| 3844 | section. gcc uses the descriptor directly rather than going via the | |
| 3845 | GOT as some other ABI's do, which means that initialized function | |
| 3846 | pointers must reference the descriptor. Thus, a function pointer | |
| 3847 | initialized to the address of a function in a shared library will | |
| 3848 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3849 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3850 | presents a problem as a plt entry for that function is also |
| 3851 | initialized from the function descriptor symbol and the copy reloc | |
| 3852 | may not be initialized first. */ | |
| a23b6845 | 3853 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3854 | |
| 721956f4 | 3855 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3856 | string. */ |
| 3857 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3858 | |
| 3859 | /* Linker stubs. | |
| 3860 | ppc_stub_long_branch: | |
| 3861 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3862 | destination, but a 24 bit branch in a stub section will reach. | |
| 3863 | . b dest | |
| 3864 | ||
| 3865 | ppc_stub_plt_branch: | |
| 3866 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3867 | reach its destination. | |
| 71a39c98 AM |
3868 | . addis %r11,%r2,xxx@toc@ha |
| 3869 | . ld %r12,xxx@toc@l(%r11) | |
| 3870 | . mtctr %r12 | |
| 721956f4 AM |
3871 | . bctr |
| 3872 | ||
| 3873 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3874 | Used to call a function in a shared library. If it so happens that |
| 3875 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3876 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3877 | . std %r2,40(%r1) |
| 71a39c98 AM |
3878 | . addis %r11,%r2,xxx@toc@ha |
| 3879 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3880 | . mtctr %r12 | |
| 3881 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3882 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3883 | . bctr |
| ad8e1ba5 AM |
3884 | |
| 3885 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3886 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3887 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3888 | . std %r2,40(%r1) | |
| 3889 | . addis %r2,%r2,off@ha | |
| 3890 | . addi %r2,%r2,off@l | |
| 3891 | . b dest | |
| 3892 | ||
| 3893 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3894 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3895 | . addis %r11,%r2,xxx@toc@ha |
| 3896 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3897 | . addis %r2,%r2,off@ha |
| 3898 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3899 | . mtctr %r12 |
| ad8e1ba5 | 3900 | . bctr |
| ac2df442 AM |
3901 | |
| 3902 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3903 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3904 | */ |
| 3905 | ||
| 3906 | enum ppc_stub_type { | |
| 3907 | ppc_stub_none, | |
| 3908 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3909 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3910 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3911 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3912 | ppc_stub_plt_call, |
| 7341d5e2 | 3913 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3914 | ppc_stub_global_entry, |
| 3915 | ppc_stub_save_res | |
| 721956f4 AM |
3916 | }; |
| 3917 | ||
| 6f20ed8a AM |
3918 | /* Information on stub grouping. */ |
| 3919 | struct map_stub | |
| 3920 | { | |
| 3921 | /* The stub section. */ | |
| 3922 | asection *stub_sec; | |
| 3923 | /* This is the section to which stubs in the group will be attached. */ | |
| 3924 | asection *link_sec; | |
| a4b6fadd AM |
3925 | /* Next group. */ |
| 3926 | struct map_stub *next; | |
| 3927 | /* Whether to emit a copy of register save/restore functions in this | |
| 3928 | group. */ | |
| 3929 | int needs_save_res; | |
| d4aaa2a0 AM |
3930 | /* The offset of the __tls_get_addr_opt plt stub bctrl in this group, |
| 3931 | or -1u if no such stub with bctrl exists. */ | |
| 3932 | unsigned int tls_get_addr_opt_bctrl; | |
| 6f20ed8a AM |
3933 | }; |
| 3934 | ||
| 721956f4 AM |
3935 | struct ppc_stub_hash_entry { |
| 3936 | ||
| 3937 | /* Base hash table entry structure. */ | |
| 3938 | struct bfd_hash_entry root; | |
| 3939 | ||
| ad8e1ba5 AM |
3940 | enum ppc_stub_type stub_type; |
| 3941 | ||
| 6f20ed8a AM |
3942 | /* Group information. */ |
| 3943 | struct map_stub *group; | |
| 721956f4 AM |
3944 | |
| 3945 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3946 | bfd_vma stub_offset; | |
| 3947 | ||
| 3948 | /* Given the symbol's value and its section we can determine its final | |
| 3949 | value when building the stubs (so the stub knows where to jump. */ | |
| 3950 | bfd_vma target_value; | |
| 3951 | asection *target_section; | |
| 3952 | ||
| 721956f4 AM |
3953 | /* The symbol table entry, if any, that this was derived from. */ |
| 3954 | struct ppc_link_hash_entry *h; | |
| e054468f | 3955 | struct plt_entry *plt_ent; |
| 721956f4 | 3956 | |
| 6911b7dc AM |
3957 | /* Symbol st_other. */ |
| 3958 | unsigned char other; | |
| 721956f4 AM |
3959 | }; |
| 3960 | ||
| 3961 | struct ppc_branch_hash_entry { | |
| 3962 | ||
| 3963 | /* Base hash table entry structure. */ | |
| 3964 | struct bfd_hash_entry root; | |
| 3965 | ||
| c456f082 | 3966 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3967 | unsigned int offset; |
| 3968 | ||
| 3969 | /* Generation marker. */ | |
| 3970 | unsigned int iter; | |
| 3971 | }; | |
| 65f38f15 | 3972 | |
| 19e08130 AM |
3973 | /* Used to track dynamic relocations for local symbols. */ |
| 3974 | struct ppc_dyn_relocs | |
| 3975 | { | |
| 3976 | struct ppc_dyn_relocs *next; | |
| 3977 | ||
| 3978 | /* The input section of the reloc. */ | |
| 3979 | asection *sec; | |
| 3980 | ||
| 3981 | /* Total number of relocs copied for the input section. */ | |
| 3982 | unsigned int count : 31; | |
| 3983 | ||
| 3984 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3985 | unsigned int ifunc : 1; | |
| 3986 | }; | |
| 3987 | ||
| 65f38f15 AM |
3988 | struct ppc_link_hash_entry |
| 3989 | { | |
| 3990 | struct elf_link_hash_entry elf; | |
| 3991 | ||
| b3fac117 AM |
3992 | union { |
| 3993 | /* A pointer to the most recently used stub hash entry against this | |
| 3994 | symbol. */ | |
| 3995 | struct ppc_stub_hash_entry *stub_cache; | |
| 3996 | ||
| 3997 | /* A pointer to the next symbol starting with a '.' */ | |
| 3998 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3999 | } u; | |
| 721956f4 | 4000 | |
| 65f38f15 | 4001 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 4002 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 4003 | |
| d311bc8b AM |
4004 | /* Chain of aliases referring to a weakdef. */ |
| 4005 | struct ppc_link_hash_entry *weakref; | |
| 4006 | ||
| 721956f4 | 4007 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 4008 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 4009 | |
| e86ce104 AM |
4010 | /* Flag function code and descriptor symbols. */ |
| 4011 | unsigned int is_func:1; | |
| 4012 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 4013 | unsigned int fake:1; |
| 411e1bfb | 4014 | |
| c5614fa4 AM |
4015 | /* Whether global opd/toc sym has been adjusted or not. |
| 4016 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 4017 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
4018 | unsigned int adjust_done:1; |
| 4019 | ||
| a4b6fadd AM |
4020 | /* Set if this is an out-of-line register save/restore function, |
| 4021 | with non-standard calling convention. */ | |
| 4022 | unsigned int save_res:1; | |
| 4023 | ||
| 8b5f1ed8 AM |
4024 | /* Set if a duplicate symbol with non-zero localentry is detected, |
| 4025 | even when the duplicate symbol does not provide a definition. */ | |
| 4026 | unsigned int non_zero_localentry:1; | |
| 4027 | ||
| 411e1bfb | 4028 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
4029 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 4030 | corresponding relocs are encountered during check_relocs. | |
| 4031 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 4032 | indicate the corresponding GOT entry type is not needed. | |
| 4033 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 4034 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 4035 | just for convenience in distinguishing the two cases. */ | |
| 4036 | #define TLS_GD 1 /* GD reloc. */ | |
| 4037 | #define TLS_LD 2 /* LD reloc. */ | |
| 4038 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 4039 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 4040 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 4041 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 4042 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 4043 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 4044 | unsigned char tls_mask; |
| 65f38f15 AM |
4045 | }; |
| 4046 | ||
| 4047 | /* ppc64 ELF linker hash table. */ | |
| 4048 | ||
| 4049 | struct ppc_link_hash_table | |
| 4050 | { | |
| 4051 | struct elf_link_hash_table elf; | |
| 4052 | ||
| 721956f4 AM |
4053 | /* The stub hash table. */ |
| 4054 | struct bfd_hash_table stub_hash_table; | |
| 4055 | ||
| 4056 | /* Another hash table for plt_branch stubs. */ | |
| 4057 | struct bfd_hash_table branch_hash_table; | |
| 4058 | ||
| 3b421ab3 AM |
4059 | /* Hash table for function prologue tocsave. */ |
| 4060 | htab_t tocsave_htab; | |
| 4061 | ||
| e7d1c40c AM |
4062 | /* Various options and other info passed from the linker. */ |
| 4063 | struct ppc64_elf_params *params; | |
| 721956f4 | 4064 | |
| 6f20ed8a AM |
4065 | /* The size of sec_info below. */ |
| 4066 | unsigned int sec_info_arr_size; | |
| 4067 | ||
| 4068 | /* Per-section array of extra section info. Done this way rather | |
| 4069 | than as part of ppc64_elf_section_data so we have the info for | |
| 4070 | non-ppc64 sections. */ | |
| 4071 | struct | |
| 4072 | { | |
| 4073 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4074 | bfd_vma toc_off; |
| 6f20ed8a AM |
4075 | |
| 4076 | union | |
| 4077 | { | |
| 4078 | /* The section group that this section belongs to. */ | |
| 4079 | struct map_stub *group; | |
| 4080 | /* A temp section list pointer. */ | |
| 4081 | asection *list; | |
| 4082 | } u; | |
| 4083 | } *sec_info; | |
| 721956f4 | 4084 | |
| a4b6fadd AM |
4085 | /* Linked list of groups. */ |
| 4086 | struct map_stub *group; | |
| 4087 | ||
| ad8e1ba5 AM |
4088 | /* Temp used when calculating TOC pointers. */ |
| 4089 | bfd_vma toc_curr; | |
| bf102f86 AM |
4090 | bfd *toc_bfd; |
| 4091 | asection *toc_first_sec; | |
| ad8e1ba5 | 4092 | |
| b3fac117 AM |
4093 | /* Used when adding symbols. */ |
| 4094 | struct ppc_link_hash_entry *dot_syms; | |
| 4095 | ||
| 33e44f2e | 4096 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 | 4097 | asection *glink; |
| 82bd7b59 | 4098 | asection *sfpr; |
| 4ce794b7 AM |
4099 | asection *brlt; |
| 4100 | asection *relbrlt; | |
| 58d180e8 | 4101 | asection *glink_eh_frame; |
| ec338859 | 4102 | |
| 8387904d AM |
4103 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4104 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4105 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4106 | |
| 927be08e AM |
4107 | /* The size of reliplt used by got entry relocs. */ |
| 4108 | bfd_size_type got_reli_size; | |
| 4109 | ||
| 9b5ecbd0 | 4110 | /* Statistics. */ |
| 7341d5e2 | 4111 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4112 | |
| ee75fd95 AM |
4113 | /* Number of stubs against global syms. */ |
| 4114 | unsigned long stub_globals; | |
| 4115 | ||
| ee67d69a AM |
4116 | /* Set if we're linking code with function descriptors. */ |
| 4117 | unsigned int opd_abi:1; | |
| 4118 | ||
| 4c52953f | 4119 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4120 | unsigned int do_multi_toc:1; |
| 4c52953f | 4121 | unsigned int multi_toc_needed:1; |
| 927be08e | 4122 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4123 | unsigned int do_toc_opt:1; |
| 4c52953f | 4124 | |
| 9a23f96e AM |
4125 | /* Set if tls optimization is enabled. */ |
| 4126 | unsigned int do_tls_opt:1; | |
| 4127 | ||
| 5d1634d7 | 4128 | /* Set on error. */ |
| 99877b66 | 4129 | unsigned int stub_error:1; |
| 721956f4 | 4130 | |
| 8c5b4e52 AM |
4131 | /* Whether func_desc_adjust needs to be run over symbols. */ |
| 4132 | unsigned int need_func_desc_adj:1; | |
| 721956f4 | 4133 | |
| 82e66161 AM |
4134 | /* Whether there exist local gnu indirect function resolvers, |
| 4135 | referenced by dynamic relocations. */ | |
| 4136 | unsigned int local_ifunc_resolver:1; | |
| 4137 | unsigned int maybe_local_ifunc_resolver:1; | |
| 4138 | ||
| f378ab09 AM |
4139 | /* Whether plt calls for ELFv2 localentry:0 funcs have been optimized. */ |
| 4140 | unsigned int has_plt_localentry0:1; | |
| 4141 | ||
| 721956f4 AM |
4142 | /* Incremented every time we size stubs. */ |
| 4143 | unsigned int stub_iteration; | |
| 5d1634d7 | 4144 | |
| 87d72d41 AM |
4145 | /* Small local sym cache. */ |
| 4146 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4147 | }; |
| 4148 | ||
| 4c52953f AM |
4149 | /* Rename some of the generic section flags to better document how they |
| 4150 | are used here. */ | |
| b0dddeec AM |
4151 | |
| 4152 | /* Nonzero if this section has TLS related relocations. */ | |
| 4153 | #define has_tls_reloc sec_flg0 | |
| 4154 | ||
| 4155 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4156 | #define has_tls_get_addr_call sec_flg1 | |
| 4157 | ||
| 4158 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4159 | #define has_toc_reloc sec_flg2 | |
| 4160 | ||
| 4161 | /* Nonzero if this section has a call to another section that uses | |
| 4162 | the toc or got. */ | |
| d77c8a4b | 4163 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4164 | |
| 4165 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4166 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4167 | #define call_check_done sec_flg5 |
| 4c52953f | 4168 | |
| 65f38f15 AM |
4169 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4170 | ||
| 4171 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4172 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4173 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4174 | |
| 721956f4 AM |
4175 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4176 | ((struct ppc_stub_hash_entry *) \ | |
| 4177 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4178 | ||
| 4179 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4180 | ((struct ppc_branch_hash_entry *) \ | |
| 4181 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4182 | ||
| 4183 | /* Create an entry in the stub hash table. */ | |
| 4184 | ||
| 4185 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4186 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4187 | struct bfd_hash_table *table, | |
| 4188 | const char *string) | |
| 721956f4 AM |
4189 | { |
| 4190 | /* Allocate the structure if it has not already been allocated by a | |
| 4191 | subclass. */ | |
| 4192 | if (entry == NULL) | |
| 4193 | { | |
| 4194 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4195 | if (entry == NULL) | |
| 4196 | return entry; | |
| 4197 | } | |
| 4198 | ||
| 4199 | /* Call the allocation method of the superclass. */ | |
| 4200 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4201 | if (entry != NULL) | |
| 4202 | { | |
| 4203 | struct ppc_stub_hash_entry *eh; | |
| 4204 | ||
| 4205 | /* Initialize the local fields. */ | |
| 4206 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4207 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4208 | eh->group = NULL; |
| 721956f4 AM |
4209 | eh->stub_offset = 0; |
| 4210 | eh->target_value = 0; | |
| 4211 | eh->target_section = NULL; | |
| 721956f4 | 4212 | eh->h = NULL; |
| 6911b7dc | 4213 | eh->plt_ent = NULL; |
| 6911b7dc | 4214 | eh->other = 0; |
| 721956f4 AM |
4215 | } |
| 4216 | ||
| 4217 | return entry; | |
| 4218 | } | |
| 4219 | ||
| 4220 | /* Create an entry in the branch hash table. */ | |
| 4221 | ||
| 4222 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4223 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4224 | struct bfd_hash_table *table, | |
| 4225 | const char *string) | |
| 721956f4 AM |
4226 | { |
| 4227 | /* Allocate the structure if it has not already been allocated by a | |
| 4228 | subclass. */ | |
| 4229 | if (entry == NULL) | |
| 4230 | { | |
| 4231 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4232 | if (entry == NULL) | |
| 4233 | return entry; | |
| 4234 | } | |
| 4235 | ||
| 4236 | /* Call the allocation method of the superclass. */ | |
| 4237 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4238 | if (entry != NULL) | |
| 4239 | { | |
| 4240 | struct ppc_branch_hash_entry *eh; | |
| 4241 | ||
| 4242 | /* Initialize the local fields. */ | |
| 4243 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4244 | eh->offset = 0; | |
| 4245 | eh->iter = 0; | |
| 4246 | } | |
| 4247 | ||
| 4248 | return entry; | |
| 4249 | } | |
| 4250 | ||
| 65f38f15 AM |
4251 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4252 | ||
| 4253 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4254 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4255 | struct bfd_hash_table *table, | |
| 4256 | const char *string) | |
| 65f38f15 AM |
4257 | { |
| 4258 | /* Allocate the structure if it has not already been allocated by a | |
| 4259 | subclass. */ | |
| 4260 | if (entry == NULL) | |
| 4261 | { | |
| 4262 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4263 | if (entry == NULL) | |
| 4264 | return entry; | |
| 4265 | } | |
| 4266 | ||
| 4267 | /* Call the allocation method of the superclass. */ | |
| 4268 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4269 | if (entry != NULL) | |
| 4270 | { | |
| 4271 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4272 | ||
| b3fac117 | 4273 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4274 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4275 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4276 | ||
| 4277 | /* When making function calls, old ABI code references function entry | |
| 4278 | points (dot symbols), while new ABI code references the function | |
| 4279 | descriptor symbol. We need to make any combination of reference and | |
| 4280 | definition work together, without breaking archive linking. | |
| 4281 | ||
| 4282 | For a defined function "foo" and an undefined call to "bar": | |
| 4283 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4284 | "bar" too). | |
| 4285 | A new object defines "foo" and references "bar". | |
| 4286 | ||
| 4287 | A new object thus has no problem with its undefined symbols being | |
| 4288 | satisfied by definitions in an old object. On the other hand, the | |
| 4289 | old object won't have ".bar" satisfied by a new object. | |
| 4290 | ||
| 4291 | Keep a list of newly added dot-symbols. */ | |
| 4292 | ||
| 4293 | if (string[0] == '.') | |
| 4294 | { | |
| 4295 | struct ppc_link_hash_table *htab; | |
| 4296 | ||
| 4297 | htab = (struct ppc_link_hash_table *) table; | |
| 4298 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4299 | htab->dot_syms = eh; | |
| 4300 | } | |
| 65f38f15 AM |
4301 | } |
| 4302 | ||
| 4303 | return entry; | |
| 4304 | } | |
| 4305 | ||
| 3b421ab3 AM |
4306 | struct tocsave_entry { |
| 4307 | asection *sec; | |
| 4308 | bfd_vma offset; | |
| 4309 | }; | |
| 4310 | ||
| 4311 | static hashval_t | |
| 4312 | tocsave_htab_hash (const void *p) | |
| 4313 | { | |
| 4314 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4aef7643 | 4315 | return ((bfd_vma) (intptr_t) e->sec ^ e->offset) >> 3; |
| 3b421ab3 AM |
4316 | } |
| 4317 | ||
| 4318 | static int | |
| 4319 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4320 | { | |
| 4321 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4322 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4323 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4324 | } | |
| 4325 | ||
| 68faa637 AM |
4326 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4327 | ||
| 4328 | static void | |
| d495ab0d | 4329 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4330 | { |
| d495ab0d | 4331 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4332 | |
| d495ab0d | 4333 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4334 | if (htab->tocsave_htab) |
| 4335 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4336 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4337 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4338 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4339 | } |
| 4340 | ||
| 65f38f15 AM |
4341 | /* Create a ppc64 ELF linker hash table. */ |
| 4342 | ||
| 4343 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4344 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4345 | { |
| 4346 | struct ppc_link_hash_table *htab; | |
| 4347 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4348 | ||
| 4ce794b7 | 4349 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4350 | if (htab == NULL) |
| 4351 | return NULL; | |
| 4352 | ||
| 66eb6687 | 4353 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4354 | sizeof (struct ppc_link_hash_entry), |
| 4355 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4356 | { |
| e2d34d7d | 4357 | free (htab); |
| 65f38f15 AM |
4358 | return NULL; |
| 4359 | } | |
| 4360 | ||
| 721956f4 | 4361 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4362 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4363 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4364 | { |
| d495ab0d | 4365 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4366 | return NULL; |
| 4367 | } | |
| 721956f4 AM |
4368 | |
| 4369 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4370 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4371 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4372 | { |
| 4373 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4374 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4375 | return NULL; |
| 4376 | } | |
| 721956f4 | 4377 | |
| 3b421ab3 AM |
4378 | htab->tocsave_htab = htab_try_create (1024, |
| 4379 | tocsave_htab_hash, | |
| 4380 | tocsave_htab_eq, | |
| 4381 | NULL); | |
| 4382 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4383 | { |
| d495ab0d | 4384 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4385 | return NULL; |
| 4386 | } | |
| d495ab0d | 4387 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4388 | |
| 3254fd24 AM |
4389 | /* Initializing two fields of the union is just cosmetic. We really |
| 4390 | only care about glist, but when compiled on a 32-bit host the | |
| 4391 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4392 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4393 | htab->elf.init_got_refcount.refcount = 0; |
| 4394 | htab->elf.init_got_refcount.glist = NULL; | |
| 4395 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4396 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4397 | htab->elf.init_got_offset.offset = 0; | |
| 4398 | htab->elf.init_got_offset.glist = NULL; | |
| 4399 | htab->elf.init_plt_offset.offset = 0; | |
| 4400 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4401 | |
| 65f38f15 AM |
4402 | return &htab->elf.root; |
| 4403 | } | |
| 4404 | ||
| bfeb4a28 AM |
4405 | /* Create sections for linker generated code. */ |
| 4406 | ||
| 4407 | static bfd_boolean | |
| 4408 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4409 | { | |
| 4410 | struct ppc_link_hash_table *htab; | |
| 4411 | flagword flags; | |
| 4412 | ||
| 4413 | htab = ppc_hash_table (info); | |
| 4414 | ||
| bfeb4a28 AM |
4415 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4416 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4417 | if (htab->params->save_restore_funcs) |
| 4418 | { | |
| 4419 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4420 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4421 | flags); | |
| 4422 | if (htab->sfpr == NULL | |
| 4423 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4424 | return FALSE; | |
| 4425 | } | |
| 4426 | ||
| 4427 | if (bfd_link_relocatable (info)) | |
| 4428 | return TRUE; | |
| bfeb4a28 AM |
4429 | |
| 4430 | /* Create .glink for lazy dynamic linking support. */ | |
| 4431 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4432 | flags); | |
| 4433 | if (htab->glink == NULL | |
| 4434 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4435 | return FALSE; | |
| 4436 | ||
| 4437 | if (!info->no_ld_generated_unwind_info) | |
| 4438 | { | |
| 4439 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4440 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4441 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4442 | ".eh_frame", | |
| 4443 | flags); | |
| 4444 | if (htab->glink_eh_frame == NULL | |
| 4445 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4446 | return FALSE; | |
| 4447 | } | |
| 4448 | ||
| 4449 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4450 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4451 | if (htab->elf.iplt == NULL | |
| 4452 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4453 | return FALSE; |
| 4454 | ||
| 4455 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4456 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4457 | htab->elf.irelplt |
| 4458 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4459 | if (htab->elf.irelplt == NULL | |
| 4460 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4461 | return FALSE; |
| 4462 | ||
| 4463 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4464 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4465 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4466 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4467 | flags); | |
| 4468 | if (htab->brlt == NULL | |
| 4469 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4470 | return FALSE; | |
| 4471 | ||
| 0e1862bb | 4472 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4473 | return TRUE; |
| 4474 | ||
| 4475 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4476 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4477 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4478 | ".rela.branch_lt", | |
| 4479 | flags); | |
| 4480 | if (htab->relbrlt == NULL | |
| 4481 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4482 | return FALSE; | |
| 4483 | ||
| 4484 | return TRUE; | |
| 4485 | } | |
| 4486 | ||
| e717da7e AM |
4487 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4488 | ||
| bfeb4a28 | 4489 | bfd_boolean |
| e7d1c40c AM |
4490 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4491 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4492 | { |
| 4493 | struct ppc_link_hash_table *htab; | |
| 4494 | ||
| e7d1c40c | 4495 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4496 | |
| 4497 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4498 | linker created stub bfd. This ensures that the GOT header is at | |
| 4499 | the start of the output TOC section. */ | |
| 4500 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4501 | htab->elf.dynobj = params->stub_bfd; |
| 4502 | htab->params = params; | |
| bfeb4a28 | 4503 | |
| bfeb4a28 | 4504 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4505 | } |
| 4506 | ||
| 721956f4 AM |
4507 | /* Build a name for an entry in the stub hash table. */ |
| 4508 | ||
| 4509 | static char * | |
| 4ce794b7 AM |
4510 | ppc_stub_name (const asection *input_section, |
| 4511 | const asection *sym_sec, | |
| 4512 | const struct ppc_link_hash_entry *h, | |
| 4513 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4514 | { |
| 4515 | char *stub_name; | |
| bcaa2f82 | 4516 | ssize_t len; |
| 721956f4 AM |
4517 | |
| 4518 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4519 | offsets from a sym as a branch target? In fact, we could | |
| 4520 | probably assume the addend is always zero. */ | |
| 4521 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4522 | ||
| 4523 | if (h) | |
| 4524 | { | |
| 4525 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4526 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4527 | if (stub_name == NULL) |
| 4528 | return stub_name; | |
| 4529 | ||
| bcaa2f82 AM |
4530 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4531 | input_section->id & 0xffffffff, | |
| 4532 | h->elf.root.root.string, | |
| 4533 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4534 | } |
| 4535 | else | |
| 4536 | { | |
| ad8e1ba5 | 4537 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4538 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4539 | if (stub_name == NULL) |
| 4540 | return stub_name; | |
| 4541 | ||
| bcaa2f82 AM |
4542 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4543 | input_section->id & 0xffffffff, | |
| 4544 | sym_sec->id & 0xffffffff, | |
| 4545 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4546 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4547 | } |
| bcaa2f82 | 4548 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4549 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4550 | return stub_name; |
| 4551 | } | |
| 4552 | ||
| 4553 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4554 | creating the stub name takes a bit of time. */ | |
| 4555 | ||
| 4556 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4557 | ppc_get_stub_entry (const asection *input_section, |
| 4558 | const asection *sym_sec, | |
| 039b3fef | 4559 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4560 | const Elf_Internal_Rela *rel, |
| 4561 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4562 | { |
| 4563 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4564 | struct map_stub *group; |
| 721956f4 AM |
4565 | |
| 4566 | /* If this input section is part of a group of sections sharing one | |
| 4567 | stub section, then use the id of the first section in the group. | |
| 4568 | Stub names need to include a section id, as there may well be | |
| 4569 | more than one stub used to reach say, printf, and we need to | |
| 4570 | distinguish between them. */ | |
| 6f20ed8a | 4571 | group = htab->sec_info[input_section->id].u.group; |
| 89d77b8a AM |
4572 | if (group == NULL) |
| 4573 | return NULL; | |
| 721956f4 | 4574 | |
| b3fac117 AM |
4575 | if (h != NULL && h->u.stub_cache != NULL |
| 4576 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4577 | && h->u.stub_cache->group == group) |
| 721956f4 | 4578 | { |
| b3fac117 | 4579 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4580 | } |
| 4581 | else | |
| 4582 | { | |
| 4583 | char *stub_name; | |
| 4584 | ||
| 6f20ed8a | 4585 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4586 | if (stub_name == NULL) |
| 4587 | return NULL; | |
| 4588 | ||
| 4589 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4590 | stub_name, FALSE, FALSE); |
| 721956f4 | 4591 | if (h != NULL) |
| b3fac117 | 4592 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4593 | |
| 4594 | free (stub_name); | |
| 4595 | } | |
| 4596 | ||
| 4597 | return stub_entry; | |
| 4598 | } | |
| 4599 | ||
| 4600 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4601 | stub entry are initialised. */ | |
| 4602 | ||
| 4603 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4604 | ppc_add_stub (const char *stub_name, |
| 4605 | asection *section, | |
| 25f53a85 | 4606 | struct bfd_link_info *info) |
| 721956f4 | 4607 | { |
| 25f53a85 | 4608 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4609 | struct map_stub *group; |
| 721956f4 AM |
4610 | asection *link_sec; |
| 4611 | asection *stub_sec; | |
| 4612 | struct ppc_stub_hash_entry *stub_entry; | |
| 4613 | ||
| 6f20ed8a AM |
4614 | group = htab->sec_info[section->id].u.group; |
| 4615 | link_sec = group->link_sec; | |
| 4616 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4617 | if (stub_sec == NULL) |
| 4618 | { | |
| 6f20ed8a AM |
4619 | size_t namelen; |
| 4620 | bfd_size_type len; | |
| 4621 | char *s_name; | |
| 721956f4 | 4622 | |
| 6f20ed8a AM |
4623 | namelen = strlen (link_sec->name); |
| 4624 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4625 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4626 | if (s_name == NULL) | |
| 4627 | return NULL; | |
| 721956f4 | 4628 | |
| 6f20ed8a AM |
4629 | memcpy (s_name, link_sec->name, namelen); |
| 4630 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4631 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4632 | if (stub_sec == NULL) | |
| 4633 | return NULL; | |
| 4634 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4635 | } |
| 4636 | ||
| 4637 | /* Enter this entry into the linker stub hash table. */ | |
| 4638 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4639 | TRUE, FALSE); |
| 721956f4 AM |
4640 | if (stub_entry == NULL) |
| 4641 | { | |
| 695344c0 | 4642 | /* xgettext:c-format */ |
| 8de848d8 | 4643 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4644 | section->owner, stub_name); |
| 721956f4 AM |
4645 | return NULL; |
| 4646 | } | |
| 4647 | ||
| 6f20ed8a | 4648 | stub_entry->group = group; |
| 721956f4 | 4649 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4650 | return stub_entry; |
| 4651 | } | |
| 4652 | ||
| e717da7e AM |
4653 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4654 | not already done. */ | |
| 65f38f15 | 4655 | |
| b34976b6 | 4656 | static bfd_boolean |
| e717da7e | 4657 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4658 | { |
| e717da7e AM |
4659 | asection *got, *relgot; |
| 4660 | flagword flags; | |
| 4661 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4662 | |
| 0c8d6e5c | 4663 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4664 | return FALSE; |
| 4dfe6ac6 NC |
4665 | if (htab == NULL) |
| 4666 | return FALSE; | |
| 0ffa91dd | 4667 | |
| 33e44f2e AM |
4668 | if (!htab->elf.sgot |
| 4669 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4670 | return FALSE; | |
| e717da7e AM |
4671 | |
| 4672 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4673 | | SEC_LINKER_CREATED); | |
| 4674 | ||
| c456f082 | 4675 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4676 | if (!got |
| e717da7e AM |
4677 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4678 | return FALSE; | |
| 65f38f15 | 4679 | |
| c456f082 AM |
4680 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4681 | flags | SEC_READONLY); | |
| e717da7e | 4682 | if (!relgot |
| e717da7e | 4683 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4684 | return FALSE; |
| e717da7e AM |
4685 | |
| 4686 | ppc64_elf_tdata (abfd)->got = got; | |
| 4687 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4688 | return TRUE; |
| 65f38f15 | 4689 | } |
| 5bd4f169 | 4690 | |
| b31867b6 AM |
4691 | /* Follow indirect and warning symbol links. */ |
| 4692 | ||
| 4693 | static inline struct bfd_link_hash_entry * | |
| 4694 | follow_link (struct bfd_link_hash_entry *h) | |
| 4695 | { | |
| 4696 | while (h->type == bfd_link_hash_indirect | |
| 4697 | || h->type == bfd_link_hash_warning) | |
| 4698 | h = h->u.i.link; | |
| 4699 | return h; | |
| 4700 | } | |
| 4701 | ||
| 4702 | static inline struct elf_link_hash_entry * | |
| 4703 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4704 | { | |
| 4705 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4706 | } | |
| 4707 | ||
| 4708 | static inline struct ppc_link_hash_entry * | |
| 4709 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4710 | { | |
| 4711 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4712 | } | |
| 4713 | ||
| 40d16e0b AM |
4714 | /* Merge PLT info on FROM with that on TO. */ |
| 4715 | ||
| 4716 | static void | |
| 4717 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4718 | struct ppc_link_hash_entry *to) | |
| 4719 | { | |
| 4720 | if (from->elf.plt.plist != NULL) | |
| 4721 | { | |
| 4722 | if (to->elf.plt.plist != NULL) | |
| 4723 | { | |
| 4724 | struct plt_entry **entp; | |
| 4725 | struct plt_entry *ent; | |
| 4726 | ||
| 4727 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4728 | { | |
| 4729 | struct plt_entry *dent; | |
| 4730 | ||
| 4731 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4732 | if (dent->addend == ent->addend) | |
| 4733 | { | |
| 4734 | dent->plt.refcount += ent->plt.refcount; | |
| 4735 | *entp = ent->next; | |
| 4736 | break; | |
| 4737 | } | |
| 4738 | if (dent == NULL) | |
| 4739 | entp = &ent->next; | |
| 4740 | } | |
| 4741 | *entp = to->elf.plt.plist; | |
| 4742 | } | |
| 4743 | ||
| 4744 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4745 | from->elf.plt.plist = NULL; | |
| 4746 | } | |
| 4747 | } | |
| 4748 | ||
| 65f38f15 AM |
4749 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4750 | ||
| 4751 | static void | |
| fcfa13d2 AM |
4752 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4753 | struct elf_link_hash_entry *dir, | |
| 4754 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4755 | { |
| 4756 | struct ppc_link_hash_entry *edir, *eind; | |
| 4757 | ||
| 4758 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4759 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4760 | ||
| c79d6685 AM |
4761 | edir->is_func |= eind->is_func; |
| 4762 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4763 | edir->tls_mask |= eind->tls_mask; | |
| 4764 | if (eind->oh != NULL) | |
| 4765 | edir->oh = ppc_follow_link (eind->oh); | |
| 4766 | ||
| e81830c5 AM |
4767 | /* If called to transfer flags for a weakdef during processing |
| 4768 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4769 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4770 | if (!(ELIMINATE_COPY_RELOCS | |
| 4771 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4772 | && edir->elf.dynamic_adjusted)) | |
| 4773 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4774 | ||
| 474436e6 | 4775 | if (edir->elf.versioned != versioned_hidden) |
| e81830c5 AM |
4776 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; |
| 4777 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4778 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4779 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| 4780 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; | |
| c79d6685 | 4781 | |
| d311bc8b AM |
4782 | /* If we were called to copy over info for a weak sym, don't copy |
| 4783 | dyn_relocs, plt/got info, or dynindx. We used to copy dyn_relocs | |
| 4784 | in order to simplify readonly_dynrelocs and save a field in the | |
| 4785 | symbol hash entry, but that means dyn_relocs can't be used in any | |
| 4786 | tests about a specific symbol, or affect other symbol flags which | |
| 4787 | are then tested. | |
| 4788 | Chain weakdefs so we can get from the weakdef back to an alias. | |
| 4789 | The list is circular so that we don't need to use u.weakdef as | |
| 4790 | well as this list to look at all aliases. */ | |
| 4791 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4792 | { | |
| 4793 | struct ppc_link_hash_entry *cur, *add, *next; | |
| 4794 | ||
| 4795 | add = eind; | |
| 4796 | do | |
| 4797 | { | |
| 4798 | cur = edir->weakref; | |
| 4799 | if (cur != NULL) | |
| 4800 | { | |
| 4801 | do | |
| 4802 | { | |
| 4803 | /* We can be called twice for the same symbols. | |
| 4804 | Don't make multiple loops. */ | |
| 4805 | if (cur == add) | |
| 4806 | return; | |
| 4807 | cur = cur->weakref; | |
| 4808 | } while (cur != edir); | |
| 4809 | } | |
| 4810 | next = add->weakref; | |
| 4811 | if (cur != add) | |
| 4812 | { | |
| 4813 | add->weakref = edir->weakref != NULL ? edir->weakref : edir; | |
| 4814 | edir->weakref = add; | |
| 4815 | } | |
| 4816 | add = next; | |
| 4817 | } while (add != NULL && add != eind); | |
| 4818 | return; | |
| 4819 | } | |
| 4820 | ||
| 411e1bfb | 4821 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4822 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4823 | { |
| bbd7ec4a AM |
4824 | if (edir->dyn_relocs != NULL) |
| 4825 | { | |
| 6061a67d AM |
4826 | struct elf_dyn_relocs **pp; |
| 4827 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4828 | |
| fcfa13d2 | 4829 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4830 | list. Merge any entries against the same section. */ |
| 4831 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4832 | { | |
| 6061a67d | 4833 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4834 | |
| 4835 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4836 | if (q->sec == p->sec) | |
| 4837 | { | |
| 4838 | q->pc_count += p->pc_count; | |
| 4839 | q->count += p->count; | |
| 4840 | *pp = p->next; | |
| 4841 | break; | |
| 4842 | } | |
| 4843 | if (q == NULL) | |
| 4844 | pp = &p->next; | |
| 4845 | } | |
| 4846 | *pp = edir->dyn_relocs; | |
| 4847 | } | |
| 4848 | ||
| 65f38f15 AM |
4849 | edir->dyn_relocs = eind->dyn_relocs; |
| 4850 | eind->dyn_relocs = NULL; | |
| 4851 | } | |
| 65f38f15 | 4852 | |
| 81848ca0 AM |
4853 | /* Copy over got entries that we may have already seen to the |
| 4854 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4855 | if (eind->elf.got.glist != NULL) |
| 4856 | { | |
| 4857 | if (edir->elf.got.glist != NULL) | |
| 4858 | { | |
| 4859 | struct got_entry **entp; | |
| 4860 | struct got_entry *ent; | |
| 4861 | ||
| 4862 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4863 | { | |
| 4864 | struct got_entry *dent; | |
| 4865 | ||
| 4866 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4867 | if (dent->addend == ent->addend | |
| e717da7e | 4868 | && dent->owner == ent->owner |
| 411e1bfb AM |
4869 | && dent->tls_type == ent->tls_type) |
| 4870 | { | |
| 4871 | dent->got.refcount += ent->got.refcount; | |
| 4872 | *entp = ent->next; | |
| 4873 | break; | |
| 4874 | } | |
| 4875 | if (dent == NULL) | |
| 4876 | entp = &ent->next; | |
| 4877 | } | |
| 4878 | *entp = edir->elf.got.glist; | |
| 4879 | } | |
| 4880 | ||
| 4881 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4882 | eind->elf.got.glist = NULL; | |
| 4883 | } | |
| 4884 | ||
| 4885 | /* And plt entries. */ | |
| 40d16e0b | 4886 | move_plt_plist (eind, edir); |
| 411e1bfb | 4887 | |
| fcfa13d2 | 4888 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4889 | { |
| fcfa13d2 AM |
4890 | if (edir->elf.dynindx != -1) |
| 4891 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4892 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4893 | edir->elf.dynindx = eind->elf.dynindx; |
| 4894 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4895 | eind->elf.dynindx = -1; | |
| 4896 | eind->elf.dynstr_index = 0; | |
| 4897 | } | |
| 411e1bfb AM |
4898 | } |
| 4899 | ||
| 8387904d AM |
4900 | /* Find the function descriptor hash entry from the given function code |
| 4901 | hash entry FH. Link the entries via their OH fields. */ | |
| 4902 | ||
| 4903 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4904 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4905 | { |
| 4906 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4907 | ||
| 4908 | if (fdh == NULL) | |
| 4909 | { | |
| 4910 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4911 | ||
| 4912 | fdh = (struct ppc_link_hash_entry *) | |
| 4913 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4914 | if (fdh == NULL) |
| 4915 | return fdh; | |
| 4916 | ||
| 4917 | fdh->is_func_descriptor = 1; | |
| 4918 | fdh->oh = fh; | |
| 4919 | fh->is_func = 1; | |
| 4920 | fh->oh = fdh; | |
| 8387904d AM |
4921 | } |
| 4922 | ||
| 8c5b4e52 AM |
4923 | fdh = ppc_follow_link (fdh); |
| 4924 | fdh->is_func_descriptor = 1; | |
| 4925 | fdh->oh = fh; | |
| 4926 | return fdh; | |
| 8387904d AM |
4927 | } |
| 4928 | ||
| 8c5b4e52 | 4929 | /* Make a fake function descriptor sym for the undefined code sym FH. */ |
| bb700d78 AM |
4930 | |
| 4931 | static struct ppc_link_hash_entry * | |
| 4932 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4933 | struct ppc_link_hash_entry *fh) |
| bb700d78 | 4934 | { |
| 8c5b4e52 AM |
4935 | bfd *abfd = fh->elf.root.u.undef.abfd; |
| 4936 | struct bfd_link_hash_entry *bh = NULL; | |
| bb700d78 | 4937 | struct ppc_link_hash_entry *fdh; |
| 8c5b4e52 AM |
4938 | flagword flags = (fh->elf.root.type == bfd_link_hash_undefweak |
| 4939 | ? BSF_WEAK | |
| 4940 | : BSF_GLOBAL); | |
| 4941 | ||
| 4942 | if (!_bfd_generic_link_add_one_symbol (info, abfd, | |
| 4943 | fh->elf.root.root.string + 1, | |
| 4944 | flags, bfd_und_section_ptr, 0, | |
| 4945 | NULL, FALSE, FALSE, &bh)) | |
| bb700d78 AM |
4946 | return NULL; |
| 4947 | ||
| 4948 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4949 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4950 | fdh->fake = 1; |
| 4951 | fdh->is_func_descriptor = 1; | |
| 4952 | fdh->oh = fh; | |
| 4953 | fh->is_func = 1; | |
| 4954 | fh->oh = fdh; | |
| bb700d78 AM |
4955 | return fdh; |
| 4956 | } | |
| 4957 | ||
| 8387904d AM |
4958 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4959 | function type. */ | |
| 555cd476 AM |
4960 | |
| 4961 | static bfd_boolean | |
| c16153ae | 4962 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4963 | struct bfd_link_info *info, |
| 555cd476 | 4964 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4965 | const char **name, |
| 555cd476 AM |
4966 | flagword *flags ATTRIBUTE_UNUSED, |
| 4967 | asection **sec, | |
| b53dfeb2 | 4968 | bfd_vma *value) |
| 555cd476 | 4969 | { |
| a43942db | 4970 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4971 | && (ibfd->flags & DYNAMIC) == 0 |
| 4972 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4973 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4974 | |
| b53dfeb2 | 4975 | if (*sec != NULL |
| f1885d1e | 4976 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4977 | { |
| 4978 | asection *code_sec; | |
| 4979 | ||
| 4980 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4981 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4982 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4983 | ||
| 4984 | /* If the symbol is a function defined in .opd, and the function | |
| 4985 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4986 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4987 | && (*sec)->reloc_count != 0 |
| 4988 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4989 | FALSE) != (bfd_vma) -1 | |
| 4990 | && discarded_section (code_sec)) | |
| 4991 | { | |
| 4992 | *sec = bfd_und_section_ptr; | |
| 4993 | isym->st_shndx = SHN_UNDEF; | |
| 4994 | } | |
| 4995 | } | |
| dbd1e97e AM |
4996 | else if (*sec != NULL |
| 4997 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4998 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4999 | { | |
| 5000 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 5001 | if (htab != NULL) | |
| 5002 | htab->params->object_in_toc = 1; | |
| 5003 | } | |
| 433817dd | 5004 | |
| 6911b7dc AM |
5005 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5006 | { | |
| 5007 | if (abiversion (ibfd) == 0) | |
| 5008 | set_abiversion (ibfd, 2); | |
| 5009 | else if (abiversion (ibfd) == 1) | |
| 5010 | { | |
| 5011 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 5012 | " for ABI version 1\n"), name); | |
| 5013 | bfd_set_error (bfd_error_bad_value); | |
| 5014 | return FALSE; | |
| 5015 | } | |
| 5016 | } | |
| 5017 | ||
| 555cd476 AM |
5018 | return TRUE; |
| 5019 | } | |
| 5020 | ||
| 6911b7dc AM |
5021 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 5022 | ||
| 5023 | static void | |
| 5024 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 5025 | const Elf_Internal_Sym *isym, | |
| 5026 | bfd_boolean definition, | |
| 5027 | bfd_boolean dynamic) | |
| 5028 | { | |
| f378ab09 | 5029 | if (definition && (!dynamic || !h->def_regular)) |
| 6911b7dc AM |
5030 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) |
| 5031 | | ELF_ST_VISIBILITY (h->other)); | |
| 5032 | } | |
| 5033 | ||
| 8c5b4e52 AM |
5034 | /* Hook called on merging a symbol. We use this to clear "fake" since |
| 5035 | we now have a real symbol. */ | |
| 5036 | ||
| 5037 | static bfd_boolean | |
| 5038 | ppc64_elf_merge_symbol (struct elf_link_hash_entry *h, | |
| 8b5f1ed8 | 5039 | const Elf_Internal_Sym *isym, |
| 8c5b4e52 AM |
5040 | asection **psec ATTRIBUTE_UNUSED, |
| 5041 | bfd_boolean newdef ATTRIBUTE_UNUSED, | |
| 5042 | bfd_boolean olddef ATTRIBUTE_UNUSED, | |
| 5043 | bfd *oldbfd ATTRIBUTE_UNUSED, | |
| 5044 | const asection *oldsec ATTRIBUTE_UNUSED) | |
| 5045 | { | |
| 5046 | ((struct ppc_link_hash_entry *) h)->fake = 0; | |
| 8b5f1ed8 AM |
5047 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 5048 | ((struct ppc_link_hash_entry *) h)->non_zero_localentry = 1; | |
| 8c5b4e52 AM |
5049 | return TRUE; |
| 5050 | } | |
| 5051 | ||
| 8387904d | 5052 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
5053 | inclusion of a new ABI object archive that defines "bar". |
| 5054 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 5055 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
5056 | |
| 5057 | static struct elf_link_hash_entry * | |
| 5058 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 5059 | struct bfd_link_info *info, | |
| 5060 | const char *name) | |
| 5061 | { | |
| 5062 | struct elf_link_hash_entry *h; | |
| 5063 | char *dot_name; | |
| 5064 | size_t len; | |
| 5065 | ||
| 5066 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
5067 | if (h != NULL |
| 5068 | /* Don't return this sym if it is a fake function descriptor | |
| 5069 | created by add_symbol_adjust. */ | |
| 8c5b4e52 | 5070 | && !((struct ppc_link_hash_entry *) h)->fake) |
| 8387904d AM |
5071 | return h; |
| 5072 | ||
| 5073 | if (name[0] == '.') | |
| 5074 | return h; | |
| 5075 | ||
| 5076 | len = strlen (name); | |
| 5077 | dot_name = bfd_alloc (abfd, len + 2); | |
| 5078 | if (dot_name == NULL) | |
| 5079 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 5080 | dot_name[0] = '.'; | |
| 5081 | memcpy (dot_name + 1, name, len + 1); | |
| 5082 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 5083 | bfd_release (abfd, dot_name); | |
| 5084 | return h; | |
| 5085 | } | |
| 5086 | ||
| 5087 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5088 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5089 | are made weak. This stops later archive searches from including an | |
| 5090 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5091 | prevents the linker complaining about undefined symbols. |
| 5092 | We also check and correct mismatched symbol visibility here. The | |
| 5093 | most restrictive visibility of the function descriptor and the | |
| 5094 | function entry symbol is used. */ | |
| 8387904d AM |
5095 | |
| 5096 | static bfd_boolean | |
| b3fac117 | 5097 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5098 | { |
| 8387904d AM |
5099 | struct ppc_link_hash_table *htab; |
| 5100 | struct ppc_link_hash_entry *fdh; | |
| 5101 | ||
| b3fac117 AM |
5102 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5103 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5104 | |
| 8400d40d AM |
5105 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 5106 | return TRUE; | |
| 5107 | ||
| b3fac117 AM |
5108 | if (eh->elf.root.root.string[0] != '.') |
| 5109 | abort (); | |
| 8387904d | 5110 | |
| b3fac117 | 5111 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5112 | if (htab == NULL) |
| 5113 | return FALSE; | |
| 5114 | ||
| b31867b6 | 5115 | fdh = lookup_fdh (eh, htab); |
| 8c5b4e52 AM |
5116 | if (fdh == NULL |
| 5117 | && !bfd_link_relocatable (info) | |
| 5118 | && (eh->elf.root.type == bfd_link_hash_undefined | |
| 5119 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5120 | && eh->elf.ref_regular) | |
| 5121 | { | |
| 5122 | /* Make an undefined function descriptor sym, in order to | |
| 5123 | pull in an --as-needed shared lib. Archives are handled | |
| 5124 | elsewhere. */ | |
| 5125 | fdh = make_fdh (info, eh); | |
| 5126 | if (fdh == NULL) | |
| 5127 | return FALSE; | |
| bb700d78 | 5128 | } |
| 8c5b4e52 AM |
5129 | |
| 5130 | if (fdh != NULL) | |
| 8387904d | 5131 | { |
| 35b0ce59 AM |
5132 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5133 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 8c5b4e52 AM |
5134 | |
| 5135 | /* Make both descriptor and entry symbol have the most | |
| 5136 | constraining visibility of either symbol. */ | |
| 35b0ce59 AM |
5137 | if (entry_vis < descr_vis) |
| 5138 | fdh->elf.other += entry_vis - descr_vis; | |
| 5139 | else if (entry_vis > descr_vis) | |
| 5140 | eh->elf.other += descr_vis - entry_vis; | |
| 5141 | ||
| 8c5b4e52 AM |
5142 | /* Propagate reference flags from entry symbol to function |
| 5143 | descriptor symbol. */ | |
| bc4e12de | 5144 | fdh->elf.root.non_ir_ref_regular |= eh->elf.root.non_ir_ref_regular; |
| 4070765b | 5145 | fdh->elf.root.non_ir_ref_dynamic |= eh->elf.root.non_ir_ref_dynamic; |
| 8c5b4e52 AM |
5146 | fdh->elf.ref_regular |= eh->elf.ref_regular; |
| 5147 | fdh->elf.ref_regular_nonweak |= eh->elf.ref_regular_nonweak; | |
| 5148 | ||
| 5149 | if (!fdh->elf.forced_local | |
| 5150 | && fdh->elf.dynindx == -1 | |
| 5151 | && fdh->elf.versioned != versioned_hidden | |
| 5152 | && (bfd_link_dll (info) | |
| 5153 | || fdh->elf.def_dynamic | |
| 5154 | || fdh->elf.ref_dynamic) | |
| 5155 | && (eh->elf.ref_regular | |
| 5156 | || eh->elf.def_regular)) | |
| 5157 | { | |
| 5158 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 5159 | return FALSE; | |
| 35b0ce59 | 5160 | } |
| 8387904d | 5161 | } |
| 99877b66 | 5162 | |
| 8387904d AM |
5163 | return TRUE; |
| 5164 | } | |
| 5165 | ||
| f6c7c3e8 AM |
5166 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5167 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5168 | |
| 8387904d | 5169 | static bfd_boolean |
| f6c7c3e8 | 5170 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5171 | { |
| 99877b66 | 5172 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5173 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5174 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5175 | |
| 459609d6 | 5176 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5177 | { |
| b9399fcf AM |
5178 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); |
| 5179 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| 5180 | ||
| 459609d6 AM |
5181 | if (abiversion (ibfd) == 0) |
| 5182 | set_abiversion (ibfd, 1); | |
| 8a2058b5 | 5183 | else if (abiversion (ibfd) >= 2) |
| f6c7c3e8 | 5184 | { |
| 695344c0 | 5185 | /* xgettext:c-format */ |
| 459609d6 AM |
5186 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5187 | " version %d\n"), | |
| 5188 | ibfd, abiversion (ibfd)); | |
| 5189 | bfd_set_error (bfd_error_bad_value); | |
| 5190 | return FALSE; | |
| f6c7c3e8 | 5191 | } |
| b9399fcf | 5192 | } |
| f6c7c3e8 | 5193 | |
| b9399fcf AM |
5194 | if (is_ppc64_elf (info->output_bfd)) |
| 5195 | { | |
| 5196 | /* For input files without an explicit abiversion in e_flags | |
| 5197 | we should have flagged any with symbol st_other bits set | |
| 5198 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5199 | Set the output abiversion if not yet set, and for any input | |
| 5200 | still ambiguous, take its abiversion from the output. | |
| 5201 | Differences in ABI are reported later. */ | |
| 5202 | if (abiversion (info->output_bfd) == 0) | |
| 5203 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5204 | else if (abiversion (ibfd) == 0) | |
| 5205 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| b3fac117 AM |
5206 | } |
| 5207 | ||
| 459609d6 AM |
5208 | htab = ppc_hash_table (info); |
| 5209 | if (htab == NULL) | |
| b9399fcf | 5210 | return TRUE; |
| 459609d6 | 5211 | |
| b9399fcf AM |
5212 | if (opd != NULL && opd->size != 0 |
| 5213 | && (ibfd->flags & DYNAMIC) == 0 | |
| 5214 | && (opd->flags & SEC_RELOC) != 0 | |
| 5215 | && opd->reloc_count != 0 | |
| 5216 | && !bfd_is_abs_section (opd->output_section) | |
| 5217 | && info->gc_sections) | |
| 5218 | { | |
| 5219 | /* Garbage collection needs some extra help with .opd sections. | |
| 5220 | We don't want to necessarily keep everything referenced by | |
| 5221 | relocs in .opd, as that would keep all functions. Instead, | |
| 5222 | if we reference an .opd symbol (a function descriptor), we | |
| 5223 | want to keep the function code symbol's section. This is | |
| 5224 | easy for global symbols, but for local syms we need to keep | |
| 5225 | information about the associated function section. */ | |
| 5226 | bfd_size_type amt; | |
| 5227 | asection **opd_sym_map; | |
| 5228 | Elf_Internal_Shdr *symtab_hdr; | |
| 5229 | Elf_Internal_Rela *relocs, *rel_end, *rel; | |
| 5230 | ||
| 5231 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); | |
| 5232 | opd_sym_map = bfd_zalloc (ibfd, amt); | |
| 5233 | if (opd_sym_map == NULL) | |
| 5234 | return FALSE; | |
| 5235 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; | |
| 5236 | relocs = _bfd_elf_link_read_relocs (ibfd, opd, NULL, NULL, | |
| 5237 | info->keep_memory); | |
| 5238 | if (relocs == NULL) | |
| 5239 | return FALSE; | |
| 5240 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 5241 | rel_end = relocs + opd->reloc_count - 1; | |
| 5242 | for (rel = relocs; rel < rel_end; rel++) | |
| 5243 | { | |
| 5244 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 5245 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5246 | ||
| 5247 | if (r_type == R_PPC64_ADDR64 | |
| 5248 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC | |
| 5249 | && r_symndx < symtab_hdr->sh_info) | |
| 5250 | { | |
| 5251 | Elf_Internal_Sym *isym; | |
| 5252 | asection *s; | |
| 5253 | ||
| 5254 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, ibfd, r_symndx); | |
| 5255 | if (isym == NULL) | |
| 5256 | { | |
| 5257 | if (elf_section_data (opd)->relocs != relocs) | |
| 5258 | free (relocs); | |
| 5259 | return FALSE; | |
| 5260 | } | |
| 5261 | ||
| 5262 | s = bfd_section_from_elf_index (ibfd, isym->st_shndx); | |
| 5263 | if (s != NULL && s != opd) | |
| 5264 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; | |
| 5265 | } | |
| 5266 | } | |
| 5267 | if (elf_section_data (opd)->relocs != relocs) | |
| 5268 | free (relocs); | |
| 5269 | } | |
| 459609d6 AM |
5270 | |
| 5271 | p = &htab->dot_syms; | |
| 5272 | while ((eh = *p) != NULL) | |
| 5273 | { | |
| 5274 | *p = NULL; | |
| 5275 | if (&eh->elf == htab->elf.hgot) | |
| 5276 | ; | |
| 5277 | else if (htab->elf.hgot == NULL | |
| 5278 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5279 | htab->elf.hgot = &eh->elf; | |
| 8c5b4e52 AM |
5280 | else if (abiversion (ibfd) <= 1) |
| 5281 | { | |
| 5282 | htab->need_func_desc_adj = 1; | |
| 5283 | if (!add_symbol_adjust (eh, info)) | |
| 5284 | return FALSE; | |
| 5285 | } | |
| 459609d6 AM |
5286 | p = &eh->u.next_dot_sym; |
| 5287 | } | |
| b3fac117 | 5288 | return TRUE; |
| 8387904d AM |
5289 | } |
| 5290 | ||
| 97fed1c9 JJ |
5291 | /* Undo hash table changes when an --as-needed input file is determined |
| 5292 | not to be needed. */ | |
| 5293 | ||
| 5294 | static bfd_boolean | |
| e5034e59 AM |
5295 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5296 | struct bfd_link_info *info, | |
| 5297 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5298 | { |
| e5034e59 AM |
5299 | if (act == notice_not_needed) |
| 5300 | { | |
| 5301 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5302 | |
| e5034e59 AM |
5303 | if (htab == NULL) |
| 5304 | return FALSE; | |
| 4dfe6ac6 | 5305 | |
| e5034e59 AM |
5306 | htab->dot_syms = NULL; |
| 5307 | } | |
| 5308 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5309 | } |
| 5310 | ||
| aa374f67 AM |
5311 | /* If --just-symbols against a final linked binary, then assume we need |
| 5312 | toc adjusting stubs when calling functions defined there. */ | |
| 5313 | ||
| 5314 | static void | |
| 5315 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5316 | { | |
| 5317 | if ((sec->flags & SEC_CODE) != 0 | |
| 5318 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5319 | && is_ppc64_elf (sec->owner)) | |
| 5320 | { | |
| 2c3f079f AM |
5321 | if (abiversion (sec->owner) >= 2 |
| 5322 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5323 | sec->has_toc_reloc = 1; |
| 5324 | } | |
| 5325 | _bfd_elf_link_just_syms (sec, info); | |
| 5326 | } | |
| 5327 | ||
| e054468f | 5328 | static struct plt_entry ** |
| 4ce794b7 AM |
5329 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5330 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5331 | { |
| 5332 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5333 | struct plt_entry **local_plt; |
| f961d9dd | 5334 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5335 | |
| 5336 | if (local_got_ents == NULL) | |
| 5337 | { | |
| 5338 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5339 | ||
| e054468f AM |
5340 | size *= (sizeof (*local_got_ents) |
| 5341 | + sizeof (*local_plt) | |
| 5342 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5343 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5344 | if (local_got_ents == NULL) |
| e054468f | 5345 | return NULL; |
| 411e1bfb AM |
5346 | elf_local_got_ents (abfd) = local_got_ents; |
| 5347 | } | |
| 5348 | ||
| e054468f | 5349 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5350 | { |
| 5351 | struct got_entry *ent; | |
| 5352 | ||
| 5353 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5354 | if (ent->addend == r_addend |
| 5355 | && ent->owner == abfd | |
| 5356 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5357 | break; |
| 5358 | if (ent == NULL) | |
| 5359 | { | |
| 5360 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5361 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5362 | if (ent == NULL) |
| 5363 | return FALSE; | |
| 5364 | ent->next = local_got_ents[r_symndx]; | |
| 5365 | ent->addend = r_addend; | |
| e717da7e | 5366 | ent->owner = abfd; |
| 411e1bfb | 5367 | ent->tls_type = tls_type; |
| 927be08e | 5368 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5369 | ent->got.refcount = 0; |
| 5370 | local_got_ents[r_symndx] = ent; | |
| 5371 | } | |
| 5372 | ent->got.refcount += 1; | |
| 5373 | } | |
| 5374 | ||
| e054468f | 5375 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5376 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5377 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5378 | |
| 5379 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5380 | } |
| 5381 | ||
| 411e1bfb | 5382 | static bfd_boolean |
| e054468f | 5383 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5384 | { |
| 411e1bfb | 5385 | struct plt_entry *ent; |
| 1e2f5b6e | 5386 | |
| e054468f | 5387 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5388 | if (ent->addend == addend) |
| 5389 | break; | |
| 5390 | if (ent == NULL) | |
| 1e2f5b6e | 5391 | { |
| 411e1bfb | 5392 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5393 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5394 | if (ent == NULL) |
| 5395 | return FALSE; | |
| e054468f | 5396 | ent->next = *plist; |
| 411e1bfb AM |
5397 | ent->addend = addend; |
| 5398 | ent->plt.refcount = 0; | |
| e054468f | 5399 | *plist = ent; |
| 1e2f5b6e | 5400 | } |
| 411e1bfb | 5401 | ent->plt.refcount += 1; |
| b34976b6 | 5402 | return TRUE; |
| 1e2f5b6e AM |
5403 | } |
| 5404 | ||
| e054468f AM |
5405 | static bfd_boolean |
| 5406 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5407 | { | |
| 5408 | return (r_type == R_PPC64_REL24 | |
| 5409 | || r_type == R_PPC64_REL14 | |
| 5410 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5411 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5412 | || r_type == R_PPC64_ADDR24 | |
| 5413 | || r_type == R_PPC64_ADDR14 | |
| 5414 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5415 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5416 | } | |
| 5417 | ||
| 5bd4f169 | 5418 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5419 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5420 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5421 | |
| b34976b6 | 5422 | static bfd_boolean |
| 4ce794b7 AM |
5423 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5424 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5425 | { |
| 65f38f15 | 5426 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5427 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5428 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5429 | const Elf_Internal_Rela *rel; |
| 5430 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5431 | asection *sreloc; |
| 3a71aa26 | 5432 | struct elf_link_hash_entry *tga, *dottga; |
| b9399fcf | 5433 | bfd_boolean is_opd; |
| 5bd4f169 | 5434 | |
| 0e1862bb | 5435 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5436 | return TRUE; |
| 5bd4f169 | 5437 | |
| 680a3378 AM |
5438 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5439 | In particular, any relocs in such sections should not affect GOT | |
| 5440 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5441 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5442 | relocs, and there's not much point in propagating relocs to shared | |
| 5443 | libs that the dynamic linker won't relocate. */ | |
| 5444 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5445 | return TRUE; | |
| 5446 | ||
| 0c8d6e5c | 5447 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5448 | |
| 65f38f15 | 5449 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5450 | if (htab == NULL) |
| 5451 | return FALSE; | |
| 5452 | ||
| 3a71aa26 AM |
5453 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5454 | FALSE, FALSE, TRUE); | |
| 5455 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5456 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5457 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5458 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5459 | sreloc = NULL; |
| b9399fcf | 5460 | is_opd = ppc64_elf_section_data (sec)->sec_type == sec_opd; |
| 5bd4f169 AM |
5461 | rel_end = relocs + sec->reloc_count; |
| 5462 | for (rel = relocs; rel < rel_end; rel++) | |
| 5463 | { | |
| 5464 | unsigned long r_symndx; | |
| 5465 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5466 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5467 | int tls_type; |
| 7c8fe5c4 | 5468 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5469 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5470 | |
| 5471 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5472 | if (r_symndx < symtab_hdr->sh_info) | |
| 5473 | h = NULL; | |
| 5474 | else | |
| 973a3492 | 5475 | { |
| 8c5b4e52 AM |
5476 | struct ppc_link_hash_entry *eh; |
| 5477 | ||
| 973a3492 | 5478 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 5479 | h = elf_follow_link (h); |
| 8c5b4e52 | 5480 | eh = (struct ppc_link_hash_entry *) h; |
| 81fbe831 AM |
5481 | |
| 5482 | /* PR15323, ref flags aren't set for references in the same | |
| 5483 | object. */ | |
| bc4e12de | 5484 | h->root.non_ir_ref_regular = 1; |
| 8c5b4e52 | 5485 | if (eh->is_func && eh->oh != NULL) |
| bc4e12de | 5486 | eh->oh->elf.root.non_ir_ref_regular = 1; |
| 1c865ab2 AM |
5487 | |
| 5488 | if (h == htab->elf.hgot) | |
| 5489 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5490 | } |
| 5bd4f169 | 5491 | |
| 727fc41e | 5492 | tls_type = 0; |
| e054468f | 5493 | ifunc = NULL; |
| 25f23106 AM |
5494 | if (h != NULL) |
| 5495 | { | |
| 5496 | if (h->type == STT_GNU_IFUNC) | |
| 5497 | { | |
| 5498 | h->needs_plt = 1; | |
| 5499 | ifunc = &h->plt.plist; | |
| 5500 | } | |
| 5501 | } | |
| 5502 | else | |
| 5503 | { | |
| 5504 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5505 | abfd, r_symndx); | |
| 5506 | if (isym == NULL) | |
| 5507 | return FALSE; | |
| 5508 | ||
| 5509 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5510 | { | |
| 5511 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5512 | rel->r_addend, PLT_IFUNC); | |
| 5513 | if (ifunc == NULL) | |
| 5514 | return FALSE; | |
| 5515 | } | |
| 5516 | } | |
| 727fc41e | 5517 | |
| cbf95972 | 5518 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5519 | switch (r_type) |
| 5bd4f169 | 5520 | { |
| 727fc41e AM |
5521 | case R_PPC64_TLSGD: |
| 5522 | case R_PPC64_TLSLD: | |
| 5523 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5524 | its parameter symbol. */ | |
| 5525 | break; | |
| 5526 | ||
| 411e1bfb AM |
5527 | case R_PPC64_GOT_TLSLD16: |
| 5528 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5529 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5530 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5531 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5532 | goto dogottls; |
| 5533 | ||
| 5534 | case R_PPC64_GOT_TLSGD16: | |
| 5535 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5536 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5537 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5538 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5539 | goto dogottls; |
| 5540 | ||
| 5541 | case R_PPC64_GOT_TPREL16_DS: | |
| 5542 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5543 | case R_PPC64_GOT_TPREL16_HI: | |
| 5544 | case R_PPC64_GOT_TPREL16_HA: | |
| 7c8bbca5 | 5545 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5546 | info->flags |= DF_STATIC_TLS; |
| 5547 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5548 | goto dogottls; | |
| 5549 | ||
| 5550 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5551 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5552 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5553 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5554 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5555 | dogottls: | |
| 5556 | sec->has_tls_reloc = 1; | |
| 1a0670f3 | 5557 | /* Fall through */ |
| 411e1bfb | 5558 | |
| 5bd4f169 | 5559 | case R_PPC64_GOT16: |
| 5bd4f169 | 5560 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5561 | case R_PPC64_GOT16_HA: |
| 5562 | case R_PPC64_GOT16_HI: | |
| 5563 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5564 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5565 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5566 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5567 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5568 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5569 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5570 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5571 | || r_type == R_PPC64_GOT16 | |
| 5572 | || r_type == R_PPC64_GOT16_DS) | |
| 5573 | { | |
| 5574 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5575 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5576 | } |
| 5577 | ||
| e717da7e AM |
5578 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5579 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5580 | return FALSE; |
| 5bd4f169 AM |
5581 | |
| 5582 | if (h != NULL) | |
| 5583 | { | |
| 411e1bfb AM |
5584 | struct ppc_link_hash_entry *eh; |
| 5585 | struct got_entry *ent; | |
| 65f38f15 | 5586 | |
| 411e1bfb AM |
5587 | eh = (struct ppc_link_hash_entry *) h; |
| 5588 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5589 | if (ent->addend == rel->r_addend | |
| e717da7e | 5590 | && ent->owner == abfd |
| 411e1bfb AM |
5591 | && ent->tls_type == tls_type) |
| 5592 | break; | |
| 5593 | if (ent == NULL) | |
| 5bd4f169 | 5594 | { |
| 411e1bfb | 5595 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5596 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5597 | if (ent == NULL) |
| b34976b6 | 5598 | return FALSE; |
| 411e1bfb AM |
5599 | ent->next = eh->elf.got.glist; |
| 5600 | ent->addend = rel->r_addend; | |
| e717da7e | 5601 | ent->owner = abfd; |
| 411e1bfb | 5602 | ent->tls_type = tls_type; |
| 927be08e | 5603 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5604 | ent->got.refcount = 0; |
| 5605 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5606 | } |
| 411e1bfb | 5607 | ent->got.refcount += 1; |
| e7b938ca | 5608 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5609 | } |
| 411e1bfb AM |
5610 | else |
| 5611 | /* This is a global offset table entry for a local symbol. */ | |
| 5612 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5613 | rel->r_addend, tls_type)) | |
| 5614 | return FALSE; | |
| a345bc8d AM |
5615 | |
| 5616 | /* We may also need a plt entry if the symbol turns out to be | |
| 5617 | an ifunc. */ | |
| 0e1862bb | 5618 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5619 | { |
| 5620 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5621 | return FALSE; | |
| 5622 | } | |
| 5bd4f169 AM |
5623 | break; |
| 5624 | ||
| 5bd4f169 | 5625 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5626 | case R_PPC64_PLT16_HI: |
| 5627 | case R_PPC64_PLT16_LO: | |
| 5628 | case R_PPC64_PLT32: | |
| 5629 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5630 | /* This symbol requires a procedure linkage table entry. */ |
| 5631 | plt_list = ifunc; | |
| 5632 | if (h != NULL) | |
| e054468f | 5633 | { |
| e054468f AM |
5634 | h->needs_plt = 1; |
| 5635 | if (h->root.root.string[0] == '.' | |
| 5636 | && h->root.root.string[1] != '\0') | |
| 5637 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5638 | plt_list = &h->plt.plist; |
| 5639 | } | |
| 5640 | if (plt_list == NULL) | |
| 5641 | { | |
| 5642 | /* It does not make sense to have a procedure linkage | |
| 5643 | table entry for a non-ifunc local symbol. */ | |
| 5644 | info->callbacks->einfo | |
| 695344c0 | 5645 | /* xgettext:c-format */ |
| 174d0a74 | 5646 | (_("%H: %s reloc against local symbol\n"), |
| cbf95972 AM |
5647 | abfd, sec, rel->r_offset, |
| 5648 | ppc64_elf_howto_table[r_type]->name); | |
| 5649 | bfd_set_error (bfd_error_bad_value); | |
| 5650 | return FALSE; | |
| e054468f | 5651 | } |
| cbf95972 AM |
5652 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5653 | return FALSE; | |
| 5bd4f169 AM |
5654 | break; |
| 5655 | ||
| 5656 | /* The following relocations don't need to propagate the | |
| 5657 | relocation if linking a shared object since they are | |
| 5658 | section relative. */ | |
| 5659 | case R_PPC64_SECTOFF: | |
| 5660 | case R_PPC64_SECTOFF_LO: | |
| 5661 | case R_PPC64_SECTOFF_HI: | |
| 5662 | case R_PPC64_SECTOFF_HA: | |
| 5663 | case R_PPC64_SECTOFF_DS: | |
| 5664 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5665 | case R_PPC64_DTPREL16: |
| 5666 | case R_PPC64_DTPREL16_LO: | |
| 5667 | case R_PPC64_DTPREL16_HI: | |
| 5668 | case R_PPC64_DTPREL16_HA: | |
| 5669 | case R_PPC64_DTPREL16_DS: | |
| 5670 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5671 | case R_PPC64_DTPREL16_HIGH: |
| 5672 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5673 | case R_PPC64_DTPREL16_HIGHER: |
| 5674 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5675 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5676 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5677 | break; |
| 5678 | ||
| ad8e1ba5 | 5679 | /* Nor do these. */ |
| 25f23106 AM |
5680 | case R_PPC64_REL16: |
| 5681 | case R_PPC64_REL16_LO: | |
| 5682 | case R_PPC64_REL16_HI: | |
| 5683 | case R_PPC64_REL16_HA: | |
| a680de9a | 5684 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5685 | break; |
| 5686 | ||
| 45965137 AM |
5687 | /* Not supported as a dynamic relocation. */ |
| 5688 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5689 | if (bfd_link_pic (info)) |
| 45965137 AM |
5690 | { |
| 5691 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5692 | ppc_howto_init (); | |
| 695344c0 | 5693 | /* xgettext:c-format */ |
| 174d0a74 | 5694 | info->callbacks->einfo (_("%H: %s reloc unsupported " |
| 45965137 AM |
5695 | "in shared libraries and PIEs.\n"), |
| 5696 | abfd, sec, rel->r_offset, | |
| 5697 | ppc64_elf_howto_table[r_type]->name); | |
| 5698 | bfd_set_error (bfd_error_bad_value); | |
| 5699 | return FALSE; | |
| 5700 | } | |
| 5701 | break; | |
| 5702 | ||
| ad8e1ba5 | 5703 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5704 | case R_PPC64_TOC16_DS: |
| 5705 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5706 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 1a0670f3 | 5707 | /* Fall through. */ |
| ad8e1ba5 AM |
5708 | case R_PPC64_TOC16_LO: |
| 5709 | case R_PPC64_TOC16_HI: | |
| 5710 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5711 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5712 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5713 | break; |
| 5714 | ||
| 006589cf AM |
5715 | /* Marker reloc. */ |
| 5716 | case R_PPC64_ENTRY: | |
| 5717 | break; | |
| 5718 | ||
| 5bd4f169 AM |
5719 | /* This relocation describes the C++ object vtable hierarchy. |
| 5720 | Reconstruct it for later use during GC. */ | |
| 5721 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5722 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5723 | return FALSE; |
| 5bd4f169 AM |
5724 | break; |
| 5725 | ||
| 5726 | /* This relocation describes which C++ vtable entries are actually | |
| 5727 | used. Record for later use during GC. */ | |
| 5728 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5729 | BFD_ASSERT (h != NULL); |
| 5730 | if (h != NULL | |
| 5731 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5732 | return FALSE; |
| 5bd4f169 AM |
5733 | break; |
| 5734 | ||
| 721956f4 AM |
5735 | case R_PPC64_REL14: |
| 5736 | case R_PPC64_REL14_BRTAKEN: | |
| 5737 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5738 | { |
| 5739 | asection *dest = NULL; | |
| 5740 | ||
| 5741 | /* Heuristic: If jumping outside our section, chances are | |
| 5742 | we are going to need a stub. */ | |
| 5743 | if (h != NULL) | |
| 5744 | { | |
| 5745 | /* If the sym is weak it may be overridden later, so | |
| 5746 | don't assume we know where a weak sym lives. */ | |
| 5747 | if (h->root.type == bfd_link_hash_defined) | |
| 5748 | dest = h->root.u.def.section; | |
| 5749 | } | |
| 5750 | else | |
| 87d72d41 AM |
5751 | { |
| 5752 | Elf_Internal_Sym *isym; | |
| 5753 | ||
| 5754 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5755 | abfd, r_symndx); | |
| 5756 | if (isym == NULL) | |
| 5757 | return FALSE; | |
| 5758 | ||
| 5759 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5760 | } | |
| 5761 | ||
| 220c76dd | 5762 | if (dest != sec) |
| 7c8fe5c4 | 5763 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5764 | } |
| 721956f4 AM |
5765 | /* Fall through. */ |
| 5766 | ||
| 5d1634d7 | 5767 | case R_PPC64_REL24: |
| cbf95972 AM |
5768 | plt_list = ifunc; |
| 5769 | if (h != NULL) | |
| 5d1634d7 | 5770 | { |
| e054468f AM |
5771 | h->needs_plt = 1; |
| 5772 | if (h->root.root.string[0] == '.' | |
| 5773 | && h->root.root.string[1] != '\0') | |
| 5774 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5775 | |
| 3a71aa26 | 5776 | if (h == tga || h == dottga) |
| cbf95972 AM |
5777 | { |
| 5778 | sec->has_tls_reloc = 1; | |
| 5779 | if (rel != relocs | |
| 5780 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5781 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5782 | /* We have a new-style __tls_get_addr call with | |
| 5783 | a marker reloc. */ | |
| 5784 | ; | |
| 5785 | else | |
| 5786 | /* Mark this section as having an old-style call. */ | |
| 5787 | sec->has_tls_get_addr_call = 1; | |
| 5788 | } | |
| 5789 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5790 | } |
| cbf95972 AM |
5791 | |
| 5792 | /* We may need a .plt entry if the function this reloc | |
| 5793 | refers to is in a shared lib. */ | |
| 5794 | if (plt_list | |
| 5795 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5796 | return FALSE; | |
| 411e1bfb AM |
5797 | break; |
| 5798 | ||
| cbf95972 AM |
5799 | case R_PPC64_ADDR14: |
| 5800 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5801 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5802 | case R_PPC64_ADDR24: | |
| 5803 | goto dodyn; | |
| 5804 | ||
| 411e1bfb AM |
5805 | case R_PPC64_TPREL64: |
| 5806 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 7c8bbca5 | 5807 | if (bfd_link_dll (info)) |
| 411e1bfb AM |
5808 | info->flags |= DF_STATIC_TLS; |
| 5809 | goto dotlstoc; | |
| 5810 | ||
| 5811 | case R_PPC64_DTPMOD64: | |
| 5812 | if (rel + 1 < rel_end | |
| 5813 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5814 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5815 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5816 | else |
| 951fd09b | 5817 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5818 | goto dotlstoc; |
| 5819 | ||
| 5820 | case R_PPC64_DTPREL64: | |
| 5821 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5822 | if (rel != relocs | |
| 5823 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5824 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5825 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5826 | Don't mark with TLS_DTPREL. */ | |
| 5827 | goto dodyn; | |
| 5828 | ||
| 5829 | dotlstoc: | |
| 5830 | sec->has_tls_reloc = 1; | |
| 5831 | if (h != NULL) | |
| 5832 | { | |
| 5833 | struct ppc_link_hash_entry *eh; | |
| 5834 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5835 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5836 | } |
| 5837 | else | |
| 5838 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5839 | rel->r_addend, tls_type)) | |
| 5840 | return FALSE; | |
| 5841 | ||
| 7c8fe5c4 AM |
5842 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5843 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5844 | { |
| 3a71aa26 AM |
5845 | bfd_size_type amt; |
| 5846 | ||
| e7b938ca | 5847 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5848 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5849 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5850 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5851 | return FALSE; | |
| 5852 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5853 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5854 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5855 | return FALSE; |
| 7c8fe5c4 AM |
5856 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5857 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5858 | } |
| 5859 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5860 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5861 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5862 | |
| 5863 | /* Mark the second slot of a GD or LD entry. | |
| 5864 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5865 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5866 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5867 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5868 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5869 | goto dodyn; |
| 5870 | ||
| 5871 | case R_PPC64_TPREL16: | |
| 5872 | case R_PPC64_TPREL16_LO: | |
| 5873 | case R_PPC64_TPREL16_HI: | |
| 5874 | case R_PPC64_TPREL16_HA: | |
| 5875 | case R_PPC64_TPREL16_DS: | |
| 5876 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5877 | case R_PPC64_TPREL16_HIGH: |
| 5878 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5879 | case R_PPC64_TPREL16_HIGHER: |
| 5880 | case R_PPC64_TPREL16_HIGHERA: | |
| 5881 | case R_PPC64_TPREL16_HIGHEST: | |
| 5882 | case R_PPC64_TPREL16_HIGHESTA: | |
| 7c8bbca5 AM |
5883 | if (bfd_link_dll (info)) |
| 5884 | info->flags |= DF_STATIC_TLS; | |
| 5885 | goto dodyn; | |
| 5d1634d7 | 5886 | |
| e86ce104 | 5887 | case R_PPC64_ADDR64: |
| b9399fcf | 5888 | if (is_opd |
| 1e2f5b6e | 5889 | && rel + 1 < rel_end |
| 4ce794b7 | 5890 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5891 | { |
| 8387904d | 5892 | if (h != NULL) |
| 8c5b4e52 | 5893 | ((struct ppc_link_hash_entry *) h)->is_func = 1; |
| 1e2f5b6e | 5894 | } |
| e86ce104 AM |
5895 | /* Fall through. */ |
| 5896 | ||
| 65f38f15 AM |
5897 | case R_PPC64_ADDR16: |
| 5898 | case R_PPC64_ADDR16_DS: | |
| 5899 | case R_PPC64_ADDR16_HA: | |
| 5900 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5901 | case R_PPC64_ADDR16_HIGH: |
| 5902 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5903 | case R_PPC64_ADDR16_HIGHER: |
| 5904 | case R_PPC64_ADDR16_HIGHERA: | |
| 5905 | case R_PPC64_ADDR16_HIGHEST: | |
| 5906 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5907 | case R_PPC64_ADDR16_LO: | |
| 5908 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5909 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5910 | && rel->r_addend == 0) |
| 5911 | { | |
| 5912 | /* We may need a .plt entry if this reloc refers to a | |
| 5913 | function in a shared lib. */ | |
| 5914 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5915 | return FALSE; | |
| 5916 | h->pointer_equality_needed = 1; | |
| 5917 | } | |
| 5918 | /* Fall through. */ | |
| 5919 | ||
| 5920 | case R_PPC64_REL30: | |
| 5921 | case R_PPC64_REL32: | |
| 5922 | case R_PPC64_REL64: | |
| 65f38f15 | 5923 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5924 | case R_PPC64_UADDR16: |
| 5925 | case R_PPC64_UADDR32: | |
| 5926 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5927 | case R_PPC64_TOC: |
| 0e1862bb | 5928 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5929 | /* We may need a copy reloc. */ |
| f5385ebf | 5930 | h->non_got_ref = 1; |
| 81848ca0 | 5931 | |
| 41bd81ab | 5932 | /* Don't propagate .opd relocs. */ |
| b9399fcf | 5933 | if (NO_OPD_RELOCS && is_opd) |
| e86ce104 | 5934 | break; |
| e86ce104 | 5935 | |
| 65f38f15 AM |
5936 | /* If we are creating a shared library, and this is a reloc |
| 5937 | against a global symbol, or a non PC relative reloc | |
| 5938 | against a local symbol, then we need to copy the reloc | |
| 5939 | into the shared library. However, if we are linking with | |
| 5940 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5941 | global symbol which is defined in an object we are | |
| 5942 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5943 | this point we have not seen all the input files, so it is | |
| 5944 | possible that DEF_REGULAR is not set now but will be set | |
| 5945 | later (it is never cleared). In case of a weak definition, | |
| 5946 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5947 | a shared library. We account for that possibility below by | |
| f4656909 | 5948 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5949 | table entry. A similar situation occurs when creating |
| 5950 | shared libraries and symbol visibility changes render the | |
| 5951 | symbol local. | |
| 5952 | ||
| 5953 | If on the other hand, we are creating an executable, we | |
| 5954 | may need to keep relocations for symbols satisfied by a | |
| 5955 | dynamic library if we manage to avoid copy relocs for the | |
| 5956 | symbol. */ | |
| 411e1bfb | 5957 | dodyn: |
| 0e1862bb | 5958 | if ((bfd_link_pic (info) |
| 1d483afe | 5959 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5960 | || (h != NULL |
| 198f1157 | 5961 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5962 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5963 | || !h->def_regular)))) |
| f4656909 | 5964 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5965 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5966 | && h != NULL |
| 5967 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5968 | || !h->def_regular)) |
| 0e1862bb | 5969 | || (!bfd_link_pic (info) |
| 25f23106 | 5970 | && ifunc != NULL)) |
| 5bd4f169 | 5971 | { |
| 65f38f15 AM |
5972 | /* We must copy these reloc types into the output file. |
| 5973 | Create a reloc section in dynobj and make room for | |
| 5974 | this reloc. */ | |
| 5bd4f169 AM |
5975 | if (sreloc == NULL) |
| 5976 | { | |
| 83bac4b0 NC |
5977 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5978 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5979 | |
| 5bd4f169 | 5980 | if (sreloc == NULL) |
| 83bac4b0 | 5981 | return FALSE; |
| 5bd4f169 AM |
5982 | } |
| 5983 | ||
| 65f38f15 AM |
5984 | /* If this is a global symbol, we count the number of |
| 5985 | relocations we need for this symbol. */ | |
| 5986 | if (h != NULL) | |
| 5987 | { | |
| 19e08130 AM |
5988 | struct elf_dyn_relocs *p; |
| 5989 | struct elf_dyn_relocs **head; | |
| 5990 | ||
| ec338859 | 5991 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5992 | p = *head; |
| 5993 | if (p == NULL || p->sec != sec) | |
| 5994 | { | |
| 5995 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5996 | if (p == NULL) | |
| 5997 | return FALSE; | |
| 5998 | p->next = *head; | |
| 5999 | *head = p; | |
| 6000 | p->sec = sec; | |
| 6001 | p->count = 0; | |
| 6002 | p->pc_count = 0; | |
| 6003 | } | |
| 6004 | p->count += 1; | |
| 6005 | if (!must_be_dyn_reloc (info, r_type)) | |
| 6006 | p->pc_count += 1; | |
| 65f38f15 AM |
6007 | } |
| 6008 | else | |
| 6009 | { | |
| ec338859 AM |
6010 | /* Track dynamic relocs needed for local syms too. |
| 6011 | We really need local syms available to do this | |
| 6012 | easily. Oh well. */ | |
| 19e08130 AM |
6013 | struct ppc_dyn_relocs *p; |
| 6014 | struct ppc_dyn_relocs **head; | |
| 6015 | bfd_boolean is_ifunc; | |
| ec338859 | 6016 | asection *s; |
| 6edfbbad | 6017 | void *vpp; |
| 87d72d41 | 6018 | Elf_Internal_Sym *isym; |
| 6edfbbad | 6019 | |
| 87d72d41 AM |
6020 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 6021 | abfd, r_symndx); | |
| 6022 | if (isym == NULL) | |
| b34976b6 | 6023 | return FALSE; |
| ec338859 | 6024 | |
| 87d72d41 AM |
6025 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 6026 | if (s == NULL) | |
| 6027 | s = sec; | |
| 6028 | ||
| 6edfbbad | 6029 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
6030 | head = (struct ppc_dyn_relocs **) vpp; |
| 6031 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 6032 | p = *head; | |
| 6033 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 6034 | p = p->next; | |
| 6035 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 6036 | { | |
| 6037 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 6038 | if (p == NULL) | |
| 6039 | return FALSE; | |
| 6040 | p->next = *head; | |
| 6041 | *head = p; | |
| 6042 | p->sec = sec; | |
| 6043 | p->ifunc = is_ifunc; | |
| 6044 | p->count = 0; | |
| 6045 | } | |
| 6046 | p->count += 1; | |
| ec338859 | 6047 | } |
| 65f38f15 | 6048 | } |
| 5bd4f169 | 6049 | break; |
| 65f38f15 AM |
6050 | |
| 6051 | default: | |
| 96e0dda4 | 6052 | break; |
| 5bd4f169 AM |
6053 | } |
| 6054 | } | |
| 6055 | ||
| b34976b6 | 6056 | return TRUE; |
| 5bd4f169 AM |
6057 | } |
| 6058 | ||
| ee67d69a AM |
6059 | /* Merge backend specific data from an object file to the output |
| 6060 | object file when linking. */ | |
| 6061 | ||
| 6062 | static bfd_boolean | |
| 50e03d47 | 6063 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, struct bfd_link_info *info) |
| ee67d69a | 6064 | { |
| 50e03d47 | 6065 | bfd *obfd = info->output_bfd; |
| ee67d69a AM |
6066 | unsigned long iflags, oflags; |
| 6067 | ||
| 6068 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 6069 | return TRUE; | |
| 6070 | ||
| 6071 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 6072 | return TRUE; | |
| 6073 | ||
| 50e03d47 | 6074 | if (!_bfd_generic_verify_endian_match (ibfd, info)) |
| ee67d69a AM |
6075 | return FALSE; |
| 6076 | ||
| 6077 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 6078 | oflags = elf_elfheader (obfd)->e_flags; | |
| 6079 | ||
| f6c7c3e8 | 6080 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a | 6081 | { |
| 4eca0228 | 6082 | _bfd_error_handler |
| 695344c0 | 6083 | /* xgettext:c-format */ |
| ee67d69a AM |
6084 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); |
| 6085 | bfd_set_error (bfd_error_bad_value); | |
| 6086 | return FALSE; | |
| 6087 | } | |
| f6c7c3e8 | 6088 | else if (iflags != oflags && iflags != 0) |
| ee67d69a | 6089 | { |
| 4eca0228 | 6090 | _bfd_error_handler |
| 695344c0 | 6091 | /* xgettext:c-format */ |
| ee67d69a AM |
6092 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), |
| 6093 | ibfd, iflags, oflags); | |
| 6094 | bfd_set_error (bfd_error_bad_value); | |
| 6095 | return FALSE; | |
| 6096 | } | |
| 6097 | ||
| 50e03d47 | 6098 | _bfd_elf_ppc_merge_fp_attributes (ibfd, info); |
| 005d79fd | 6099 | |
| ee67d69a | 6100 | /* Merge Tag_compatibility attributes and any common GNU ones. */ |
| 50e03d47 | 6101 | _bfd_elf_merge_object_attributes (ibfd, info); |
| ee67d69a AM |
6102 | |
| 6103 | return TRUE; | |
| 6104 | } | |
| 6105 | ||
| 6106 | static bfd_boolean | |
| 6107 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 6108 | { | |
| 6109 | /* Print normal ELF private data. */ | |
| 6110 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6111 | ||
| 6112 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6113 | { | |
| 6114 | FILE *file = ptr; | |
| 6115 | ||
| ee67d69a AM |
6116 | fprintf (file, _("private flags = 0x%lx:"), |
| 6117 | elf_elfheader (abfd)->e_flags); | |
| 6118 | ||
| 6119 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6120 | fprintf (file, _(" [abiv%ld]"), | |
| 6121 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6122 | fputc ('\n', file); | |
| 6123 | } | |
| 6124 | ||
| 6125 | return TRUE; | |
| 6126 | } | |
| 6127 | ||
| 8387904d | 6128 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6129 | of the code entry point, and its section, which must be in the same |
| 6130 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6131 | |
| 6132 | static bfd_vma | |
| 6133 | opd_entry_value (asection *opd_sec, | |
| 6134 | bfd_vma offset, | |
| 6135 | asection **code_sec, | |
| aef36ac1 AM |
6136 | bfd_vma *code_off, |
| 6137 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6138 | { |
| 6139 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6140 | Elf_Internal_Rela *relocs; |
| 8387904d | 6141 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6142 | bfd_vma val; |
| 8387904d | 6143 | |
| 9f296da3 AM |
6144 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6145 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6146 | if (opd_sec->reloc_count == 0) |
| 6147 | { | |
| 729eabd5 | 6148 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6149 | |
| 729eabd5 AM |
6150 | if (contents == NULL) |
| 6151 | { | |
| 6152 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6153 | return (bfd_vma) -1; | |
| 6154 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6155 | } | |
| ee1e4ede | 6156 | |
| dbb3fbbb | 6157 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6158 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6159 | return (bfd_vma) -1; |
| 6160 | ||
| 729eabd5 | 6161 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6162 | if (code_sec != NULL) |
| 6163 | { | |
| 6164 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6165 | |
| aef36ac1 | 6166 | if (in_code_sec) |
| 4b85d634 | 6167 | { |
| aef36ac1 AM |
6168 | sec = *code_sec; |
| 6169 | if (sec->vma <= val | |
| 6170 | && val < sec->vma + sec->size) | |
| 6171 | likely = sec; | |
| 6172 | else | |
| 6173 | val = -1; | |
| 6174 | } | |
| 6175 | else | |
| 6176 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6177 | if (sec->vma <= val | |
| 6178 | && (sec->flags & SEC_LOAD) != 0 | |
| 6179 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6180 | likely = sec; | |
| 6181 | if (likely != NULL) | |
| 6182 | { | |
| 6183 | *code_sec = likely; | |
| 6184 | if (code_off != NULL) | |
| 6185 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6186 | } |
| 6187 | } | |
| aef36ac1 | 6188 | return val; |
| 4b85d634 AM |
6189 | } |
| 6190 | ||
| 0c8d6e5c | 6191 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6192 | |
| 729eabd5 | 6193 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6194 | if (relocs == NULL) |
| 6195 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6196 | /* PR 17512: file: df8e1fd6. */ |
| 6197 | if (relocs == NULL) | |
| 6198 | return (bfd_vma) -1; | |
| 645ea6a9 | 6199 | |
| 8387904d | 6200 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6201 | lo = relocs; |
| 8387904d | 6202 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6203 | val = (bfd_vma) -1; |
| 8387904d AM |
6204 | while (lo < hi) |
| 6205 | { | |
| 6206 | look = lo + (hi - lo) / 2; | |
| 6207 | if (look->r_offset < offset) | |
| 6208 | lo = look + 1; | |
| 6209 | else if (look->r_offset > offset) | |
| 6210 | hi = look; | |
| 6211 | else | |
| 6212 | { | |
| 0ffa91dd NC |
6213 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6214 | ||
| 8387904d AM |
6215 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6216 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6217 | { | |
| 6218 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6219 | asection *sec = NULL; |
| 8387904d | 6220 | |
| b53dfeb2 AM |
6221 | if (symndx >= symtab_hdr->sh_info |
| 6222 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6223 | { |
| 6224 | struct elf_link_hash_entry **sym_hashes; | |
| 6225 | struct elf_link_hash_entry *rh; | |
| 6226 | ||
| 6227 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6228 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6229 | if (rh != NULL) |
| 6230 | { | |
| 6231 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6232 | if (rh->root.type != bfd_link_hash_defined |
| 6233 | && rh->root.type != bfd_link_hash_defweak) | |
| 6234 | break; | |
| 6235 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6236 | { |
| bb854a36 AM |
6237 | val = rh->root.u.def.value; |
| 6238 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6239 | } |
| 6240 | } | |
| 6241 | } | |
| 6242 | ||
| 6243 | if (sec == NULL) | |
| 6244 | { | |
| 6245 | Elf_Internal_Sym *sym; | |
| 6246 | ||
| 6247 | if (symndx < symtab_hdr->sh_info) | |
| 6248 | { | |
| 6249 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6250 | if (sym == NULL) | |
| 6251 | { | |
| 6252 | size_t symcnt = symtab_hdr->sh_info; | |
| 6253 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6254 | symcnt, 0, | |
| 6255 | NULL, NULL, NULL); | |
| 6256 | if (sym == NULL) | |
| 6257 | break; | |
| 6258 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6259 | } | |
| 6260 | sym += symndx; | |
| 128205bb AM |
6261 | } |
| 6262 | else | |
| 6263 | { | |
| b53dfeb2 AM |
6264 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6265 | 1, symndx, | |
| 6266 | NULL, NULL, NULL); | |
| 128205bb AM |
6267 | if (sym == NULL) |
| 6268 | break; | |
| 128205bb | 6269 | } |
| b53dfeb2 AM |
6270 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6271 | if (sec == NULL) | |
| 6272 | break; | |
| 6273 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6274 | val = sym->st_value; | |
| 8387904d | 6275 | } |
| b53dfeb2 | 6276 | |
| 8387904d AM |
6277 | val += look->r_addend; |
| 6278 | if (code_off != NULL) | |
| 6279 | *code_off = val; | |
| 6280 | if (code_sec != NULL) | |
| aef36ac1 AM |
6281 | { |
| 6282 | if (in_code_sec && *code_sec != sec) | |
| 6283 | return -1; | |
| 6284 | else | |
| 6285 | *code_sec = sec; | |
| 6286 | } | |
| b53dfeb2 | 6287 | if (sec->output_section != NULL) |
| 8387904d | 6288 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6289 | } |
| 6290 | break; | |
| 6291 | } | |
| 6292 | } | |
| 645ea6a9 | 6293 | |
| 645ea6a9 | 6294 | return val; |
| 8387904d AM |
6295 | } |
| 6296 | ||
| aef36ac1 AM |
6297 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6298 | function size and set *CODE_OFF to the function's entry point, | |
| 6299 | otherwise return zero. */ | |
| 9f296da3 | 6300 | |
| aef36ac1 AM |
6301 | static bfd_size_type |
| 6302 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6303 | bfd_vma *code_off) | |
| 9f296da3 | 6304 | { |
| aef36ac1 AM |
6305 | bfd_size_type size; |
| 6306 | ||
| 6307 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6308 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6309 | return 0; | |
| 6310 | ||
| 6311 | size = 0; | |
| 6312 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6313 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6314 | ||
| 6315 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6316 | { |
| b07bca4e AM |
6317 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6318 | bfd_vma symval = sym->value; | |
| 6319 | ||
| 6320 | if (opd != NULL | |
| 6321 | && opd->adjust != NULL | |
| 6322 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6323 | { | |
| 6324 | /* opd_entry_value will use cached relocs that have been | |
| 6325 | adjusted, but with raw symbols. That means both local | |
| 6326 | and global symbols need adjusting. */ | |
| 6327 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6328 | if (adjust == -1) | |
| 6329 | return 0; | |
| 6330 | symval += adjust; | |
| 6331 | } | |
| 6332 | ||
| 6333 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6334 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6335 | return 0; | |
| 6336 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6337 | symbol. This size has nothing to do with the code size of the | |
| 6338 | function, which is what we're supposed to return, but the | |
| 6339 | code size isn't available without looking up the dot-sym. | |
| 6340 | However, doing that would be a waste of time particularly | |
| 6341 | since elf_find_function will look at the dot-sym anyway. | |
| 6342 | Now, elf_find_function will keep the largest size of any | |
| 6343 | function sym found at the code address of interest, so return | |
| 6344 | 1 here to avoid it incorrectly caching a larger function size | |
| 6345 | for a small function. This does mean we return the wrong | |
| 6346 | size for a new-ABI function of size 24, but all that does is | |
| 6347 | disable caching for such functions. */ | |
| 6348 | if (size == 24) | |
| 6349 | size = 1; | |
| 9f296da3 | 6350 | } |
| aef36ac1 AM |
6351 | else |
| 6352 | { | |
| 6353 | if (sym->section != sec) | |
| 6354 | return 0; | |
| 6355 | *code_off = sym->value; | |
| 6356 | } | |
| 6357 | if (size == 0) | |
| 6358 | size = 1; | |
| 6359 | return size; | |
| 9f296da3 AM |
6360 | } |
| 6361 | ||
| f378ab09 AM |
6362 | /* Return true if symbol is a strong function defined in an ELFv2 |
| 6363 | object with st_other localentry bits of zero, ie. its local entry | |
| 6364 | point coincides with its global entry point. */ | |
| 6365 | ||
| 6366 | static bfd_boolean | |
| 6367 | is_elfv2_localentry0 (struct elf_link_hash_entry *h) | |
| 6368 | { | |
| 6369 | return (h != NULL | |
| 6370 | && h->type == STT_FUNC | |
| 6371 | && h->root.type == bfd_link_hash_defined | |
| 6372 | && (STO_PPC64_LOCAL_MASK & h->other) == 0 | |
| 8b5f1ed8 | 6373 | && !((struct ppc_link_hash_entry *) h)->non_zero_localentry |
| f378ab09 AM |
6374 | && is_ppc64_elf (h->root.u.def.section->owner) |
| 6375 | && abiversion (h->root.u.def.section->owner) >= 2); | |
| 6376 | } | |
| 6377 | ||
| 854b41e7 AM |
6378 | /* Return true if symbol is defined in a regular object file. */ |
| 6379 | ||
| 6380 | static bfd_boolean | |
| 6381 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6382 | { | |
| 6383 | return ((h->root.type == bfd_link_hash_defined | |
| 6384 | || h->root.type == bfd_link_hash_defweak) | |
| 6385 | && h->root.u.def.section != NULL | |
| 6386 | && h->root.u.def.section->output_section != NULL); | |
| 6387 | } | |
| 6388 | ||
| b31867b6 AM |
6389 | /* If FDH is a function descriptor symbol, return the associated code |
| 6390 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6391 | ||
| 6392 | static struct ppc_link_hash_entry * | |
| 6393 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6394 | { | |
| 6395 | if (fdh->is_func_descriptor) | |
| 6396 | { | |
| 6397 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6398 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6399 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6400 | return fh; | |
| 6401 | } | |
| 6402 | return NULL; | |
| 6403 | } | |
| 6404 | ||
| 6405 | /* If FH is a function code entry symbol, return the associated | |
| 6406 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6407 | ||
| 6408 | static struct ppc_link_hash_entry * | |
| 6409 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6410 | { | |
| 6411 | if (fh->oh != NULL | |
| 6412 | && fh->oh->is_func_descriptor) | |
| 6413 | { | |
| 6414 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6415 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6416 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6417 | return fdh; | |
| 6418 | } | |
| 6419 | return NULL; | |
| 6420 | } | |
| 6421 | ||
| 8c5b4e52 AM |
6422 | static bfd_boolean func_desc_adjust (struct elf_link_hash_entry *, void *); |
| 6423 | ||
| 6424 | /* Garbage collect sections, after first dealing with dot-symbols. */ | |
| 6425 | ||
| 6426 | static bfd_boolean | |
| 6427 | ppc64_elf_gc_sections (bfd *abfd, struct bfd_link_info *info) | |
| 6428 | { | |
| 6429 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6430 | ||
| 6431 | if (htab != NULL && htab->need_func_desc_adj) | |
| 6432 | { | |
| 6433 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 6434 | htab->need_func_desc_adj = 0; | |
| 6435 | } | |
| 6436 | return bfd_elf_gc_sections (abfd, info); | |
| 6437 | } | |
| 6438 | ||
| 74f0fb50 AM |
6439 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6440 | ||
| 6441 | static void | |
| 6442 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6443 | { | |
| 6444 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6445 | struct bfd_sym_chain *sym; | |
| 6446 | ||
| 4dfe6ac6 NC |
6447 | if (htab == NULL) |
| 6448 | return; | |
| 6449 | ||
| 74f0fb50 AM |
6450 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6451 | { | |
| b31867b6 | 6452 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6453 | asection *sec; |
| 6454 | ||
| 6455 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6456 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6457 | if (eh == NULL) |
| 6458 | continue; | |
| 6459 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6460 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6461 | continue; | |
| 6462 | ||
| b31867b6 AM |
6463 | fh = defined_code_entry (eh); |
| 6464 | if (fh != NULL) | |
| 74f0fb50 | 6465 | { |
| b31867b6 | 6466 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6467 | sec->flags |= SEC_KEEP; |
| 6468 | } | |
| 6469 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6470 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6471 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6472 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6473 | sec->flags |= SEC_KEEP; |
| 6474 | ||
| 6475 | sec = eh->elf.root.u.def.section; | |
| 6476 | sec->flags |= SEC_KEEP; | |
| 6477 | } | |
| 6478 | } | |
| 6479 | ||
| 64d03ab5 AM |
6480 | /* Mark sections containing dynamically referenced symbols. When |
| 6481 | building shared libraries, we must assume that any visible symbol is | |
| 6482 | referenced. */ | |
| 6483 | ||
| 6484 | static bfd_boolean | |
| 6485 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6486 | { | |
| 6487 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6488 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6489 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6490 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6491 | |
| 64d03ab5 | 6492 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6493 | fdh = defined_func_desc (eh); |
| 6494 | if (fdh != NULL) | |
| 6495 | eh = fdh; | |
| 64d03ab5 AM |
6496 | |
| 6497 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6498 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6499 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6500 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6501 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6502 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6503 | && (!bfd_link_executable (info) |
| e278ae05 | 6504 | || info->gc_keep_exported |
| b407645f AM |
6505 | || info->export_dynamic |
| 6506 | || (eh->elf.dynamic | |
| 6507 | && d != NULL | |
| 6508 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| e278ae05 | 6509 | && (eh->elf.versioned >= versioned |
| 4c58e0d8 AM |
6510 | || !bfd_hide_sym_by_version (info->version_info, |
| 6511 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6512 | { |
| 6513 | asection *code_sec; | |
| b31867b6 | 6514 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6515 | |
| 6516 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6517 | ||
| 6518 | /* Function descriptor syms cause the associated | |
| 6519 | function code sym section to be marked. */ | |
| b31867b6 AM |
6520 | fh = defined_code_entry (eh); |
| 6521 | if (fh != NULL) | |
| 6522 | { | |
| 6523 | code_sec = fh->elf.root.u.def.section; | |
| 6524 | code_sec->flags |= SEC_KEEP; | |
| 6525 | } | |
| 64d03ab5 AM |
6526 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6527 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6528 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6529 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6530 | code_sec->flags |= SEC_KEEP; |
| 6531 | } | |
| 6532 | ||
| 6533 | return TRUE; | |
| 6534 | } | |
| 6535 | ||
| 5bd4f169 AM |
6536 | /* Return the section that should be marked against GC for a given |
| 6537 | relocation. */ | |
| 6538 | ||
| 6539 | static asection * | |
| 4ce794b7 | 6540 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6541 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6542 | Elf_Internal_Rela *rel, |
| 6543 | struct elf_link_hash_entry *h, | |
| 6544 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6545 | { |
| ccfa59ea AM |
6546 | asection *rsec; |
| 6547 | ||
| ccfa59ea AM |
6548 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6549 | function sections, as all functions are referenced in .opd. */ | |
| 6550 | rsec = NULL; | |
| 6551 | if (get_opd_info (sec) != NULL) | |
| 6552 | return rsec; | |
| 1e2f5b6e | 6553 | |
| 5bd4f169 AM |
6554 | if (h != NULL) |
| 6555 | { | |
| 04c9666a | 6556 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6557 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6558 | |
| 4ce794b7 | 6559 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6560 | switch (r_type) |
| 5bd4f169 AM |
6561 | { |
| 6562 | case R_PPC64_GNU_VTINHERIT: | |
| 6563 | case R_PPC64_GNU_VTENTRY: | |
| 6564 | break; | |
| 6565 | ||
| 6566 | default: | |
| 6567 | switch (h->root.type) | |
| 6568 | { | |
| 6569 | case bfd_link_hash_defined: | |
| 6570 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6571 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6572 | fdh = defined_func_desc (eh); |
| 6573 | if (fdh != NULL) | |
| 8c5b4e52 AM |
6574 | { |
| 6575 | /* -mcall-aixdesc code references the dot-symbol on | |
| 6576 | a call reloc. Mark the function descriptor too | |
| 6577 | against garbage collection. */ | |
| 6578 | fdh->elf.mark = 1; | |
| 6579 | if (fdh->elf.u.weakdef != NULL) | |
| 6580 | fdh->elf.u.weakdef->mark = 1; | |
| 6581 | eh = fdh; | |
| 6582 | } | |
| 1e2f5b6e AM |
6583 | |
| 6584 | /* Function descriptor syms cause the associated | |
| 6585 | function code sym section to be marked. */ | |
| b31867b6 AM |
6586 | fh = defined_code_entry (eh); |
| 6587 | if (fh != NULL) | |
| ccfa59ea AM |
6588 | { |
| 6589 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6590 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6591 | |
| b31867b6 | 6592 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6593 | } |
| 8387904d AM |
6594 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6595 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6596 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6597 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6598 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6599 | else |
| 1e2f5b6e AM |
6600 | rsec = h->root.u.def.section; |
| 6601 | break; | |
| 5bd4f169 AM |
6602 | |
| 6603 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6604 | rsec = h->root.u.c.p->section; |
| 6605 | break; | |
| 5bd4f169 AM |
6606 | |
| 6607 | default: | |
| fb34365b | 6608 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6609 | } |
| 6610 | } | |
| 6611 | } | |
| 6612 | else | |
| 6613 | { | |
| 74f0fb50 | 6614 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6615 | |
| 6616 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6617 | opd = get_opd_info (rsec); |
| 6618 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6619 | { |
| 74f0fb50 | 6620 | rsec->gc_mark = 1; |
| ccfa59ea | 6621 | |
| 51aecdc5 | 6622 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6623 | } |
| 5bd4f169 AM |
6624 | } |
| 6625 | ||
| 1e2f5b6e | 6626 | return rsec; |
| 5bd4f169 AM |
6627 | } |
| 6628 | ||
| deb0e272 AM |
6629 | /* The maximum size of .sfpr. */ |
| 6630 | #define SFPR_MAX (218*4) | |
| 6631 | ||
| 6632 | struct sfpr_def_parms | |
| 6633 | { | |
| 699733f6 AM |
6634 | const char name[12]; |
| 6635 | unsigned char lo, hi; | |
| deb0e272 AM |
6636 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6637 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6638 | }; | |
| 6639 | ||
| a4b6fadd AM |
6640 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6641 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6642 | instead. */ | |
| deb0e272 | 6643 | |
| 4dfe6ac6 | 6644 | static bfd_boolean |
| a4b6fadd AM |
6645 | sfpr_define (struct bfd_link_info *info, |
| 6646 | const struct sfpr_def_parms *parm, | |
| 6647 | asection *stub_sec) | |
| deb0e272 AM |
6648 | { |
| 6649 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6650 | unsigned int i; | |
| 6651 | size_t len = strlen (parm->name); | |
| 6652 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6653 | char sym[16]; |
| deb0e272 | 6654 | |
| 4dfe6ac6 NC |
6655 | if (htab == NULL) |
| 6656 | return FALSE; | |
| 6657 | ||
| deb0e272 AM |
6658 | memcpy (sym, parm->name, len); |
| 6659 | sym[len + 2] = 0; | |
| 6660 | ||
| 6661 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6662 | { | |
| a4b6fadd | 6663 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6664 | |
| 6665 | sym[len + 0] = i / 10 + '0'; | |
| 6666 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6667 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6668 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6669 | if (stub_sec != NULL) |
| deb0e272 | 6670 | { |
| a4b6fadd AM |
6671 | if (h != NULL |
| 6672 | && h->elf.root.type == bfd_link_hash_defined | |
| 6673 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6674 | { | |
| 6675 | struct elf_link_hash_entry *s; | |
| 6676 | char buf[32]; | |
| 6677 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6678 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6679 | if (s == NULL) | |
| 6680 | return FALSE; | |
| 6681 | if (s->root.type == bfd_link_hash_new | |
| 6682 | || (s->root.type = bfd_link_hash_defined | |
| 6683 | && s->root.u.def.section == stub_sec)) | |
| 6684 | { | |
| 6685 | s->root.type = bfd_link_hash_defined; | |
| 6686 | s->root.u.def.section = stub_sec; | |
| 6687 | s->root.u.def.value = (stub_sec->size | |
| 6688 | + h->elf.root.u.def.value); | |
| 6689 | s->ref_regular = 1; | |
| 6690 | s->def_regular = 1; | |
| 6691 | s->ref_regular_nonweak = 1; | |
| 6692 | s->forced_local = 1; | |
| 6693 | s->non_elf = 0; | |
| 6694 | s->root.linker_def = 1; | |
| 6695 | } | |
| 6696 | } | |
| 6697 | continue; | |
| 6698 | } | |
| 6699 | if (h != NULL) | |
| 6700 | { | |
| 6701 | h->save_res = 1; | |
| 6702 | if (!h->elf.def_regular) | |
| deb0e272 | 6703 | { |
| a4b6fadd AM |
6704 | h->elf.root.type = bfd_link_hash_defined; |
| 6705 | h->elf.root.u.def.section = htab->sfpr; | |
| 6706 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6707 | h->elf.type = STT_FUNC; | |
| 6708 | h->elf.def_regular = 1; | |
| b32547cd | 6709 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6710 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6711 | writing = TRUE; | |
| deb0e272 | 6712 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6713 | { |
| 6714 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6715 | if (htab->sfpr->contents == NULL) | |
| 6716 | return FALSE; | |
| 6717 | } | |
| deb0e272 AM |
6718 | } |
| 6719 | } | |
| 6720 | if (writing) | |
| 6721 | { | |
| 6722 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6723 | if (i != parm->hi) | |
| 6724 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6725 | else | |
| 6726 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6727 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6728 | } | |
| 6729 | } | |
| 6730 | ||
| 6731 | return TRUE; | |
| 6732 | } | |
| 6733 | ||
| 6734 | static bfd_byte * | |
| 6735 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6736 | { | |
| 6737 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6738 | return p + 4; | |
| 6739 | } | |
| 6740 | ||
| 6741 | static bfd_byte * | |
| 6742 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6743 | { | |
| 6744 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6745 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6746 | p = p + 4; |
| 6747 | bfd_put_32 (abfd, BLR, p); | |
| 6748 | return p + 4; | |
| 6749 | } | |
| 6750 | ||
| 6751 | static bfd_byte * | |
| 6752 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6753 | { | |
| 6754 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6755 | return p + 4; | |
| 6756 | } | |
| 6757 | ||
| 6758 | static bfd_byte * | |
| 6759 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6760 | { | |
| a078d95a | 6761 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6762 | p = p + 4; |
| 6763 | p = restgpr0 (abfd, p, r); | |
| 6764 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6765 | p = p + 4; | |
| 6766 | if (r == 29) | |
| 6767 | { | |
| 6768 | p = restgpr0 (abfd, p, 30); | |
| 6769 | p = restgpr0 (abfd, p, 31); | |
| 6770 | } | |
| 6771 | bfd_put_32 (abfd, BLR, p); | |
| 6772 | return p + 4; | |
| 6773 | } | |
| 6774 | ||
| 6775 | static bfd_byte * | |
| 6776 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6777 | { | |
| 6778 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6779 | return p + 4; | |
| 6780 | } | |
| 6781 | ||
| 6782 | static bfd_byte * | |
| 6783 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6784 | { | |
| 6785 | p = savegpr1 (abfd, p, r); | |
| 6786 | bfd_put_32 (abfd, BLR, p); | |
| 6787 | return p + 4; | |
| 6788 | } | |
| 6789 | ||
| 6790 | static bfd_byte * | |
| 6791 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6792 | { | |
| 6793 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6794 | return p + 4; | |
| 6795 | } | |
| 6796 | ||
| 6797 | static bfd_byte * | |
| 6798 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6799 | { | |
| 6800 | p = restgpr1 (abfd, p, r); | |
| 6801 | bfd_put_32 (abfd, BLR, p); | |
| 6802 | return p + 4; | |
| 6803 | } | |
| 6804 | ||
| 6805 | static bfd_byte * | |
| 6806 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6807 | { | |
| 6808 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6809 | return p + 4; | |
| 6810 | } | |
| 6811 | ||
| 6812 | static bfd_byte * | |
| 6813 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6814 | { | |
| 6815 | p = savefpr (abfd, p, r); | |
| a078d95a | 6816 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6817 | p = p + 4; |
| 6818 | bfd_put_32 (abfd, BLR, p); | |
| 6819 | return p + 4; | |
| 6820 | } | |
| 6821 | ||
| 6822 | static bfd_byte * | |
| 6823 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6824 | { | |
| 6825 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6826 | return p + 4; | |
| 6827 | } | |
| 6828 | ||
| 6829 | static bfd_byte * | |
| 6830 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6831 | { | |
| a078d95a | 6832 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6833 | p = p + 4; |
| 6834 | p = restfpr (abfd, p, r); | |
| 6835 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6836 | p = p + 4; | |
| 6837 | if (r == 29) | |
| 6838 | { | |
| 6839 | p = restfpr (abfd, p, 30); | |
| 6840 | p = restfpr (abfd, p, 31); | |
| 6841 | } | |
| 6842 | bfd_put_32 (abfd, BLR, p); | |
| 6843 | return p + 4; | |
| 6844 | } | |
| 6845 | ||
| 6846 | static bfd_byte * | |
| 6847 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6848 | { | |
| 6849 | p = savefpr (abfd, p, r); | |
| 6850 | bfd_put_32 (abfd, BLR, p); | |
| 6851 | return p + 4; | |
| 6852 | } | |
| 6853 | ||
| 6854 | static bfd_byte * | |
| 6855 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6856 | { | |
| 6857 | p = restfpr (abfd, p, r); | |
| 6858 | bfd_put_32 (abfd, BLR, p); | |
| 6859 | return p + 4; | |
| 6860 | } | |
| 6861 | ||
| 6862 | static bfd_byte * | |
| 6863 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6864 | { | |
| 6865 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6866 | p = p + 4; | |
| 6867 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6868 | return p + 4; | |
| 6869 | } | |
| 6870 | ||
| 6871 | static bfd_byte * | |
| 6872 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6873 | { | |
| 6874 | p = savevr (abfd, p, r); | |
| 6875 | bfd_put_32 (abfd, BLR, p); | |
| 6876 | return p + 4; | |
| 6877 | } | |
| 6878 | ||
| 6879 | static bfd_byte * | |
| 6880 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6881 | { | |
| 6882 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6883 | p = p + 4; | |
| 6884 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6885 | return p + 4; | |
| 6886 | } | |
| 6887 | ||
| 6888 | static bfd_byte * | |
| 6889 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6890 | { | |
| 6891 | p = restvr (abfd, p, r); | |
| 6892 | bfd_put_32 (abfd, BLR, p); | |
| 6893 | return p + 4; | |
| 6894 | } | |
| 6895 | ||
| e86ce104 AM |
6896 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6897 | information on function code symbol entries to their corresponding | |
| 6898 | function descriptor symbol entries. */ | |
| deb0e272 | 6899 | |
| b34976b6 | 6900 | static bfd_boolean |
| 4ce794b7 | 6901 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6902 | { |
| e86ce104 | 6903 | struct bfd_link_info *info; |
| 65f38f15 | 6904 | struct ppc_link_hash_table *htab; |
| 50bc7936 AM |
6905 | struct ppc_link_hash_entry *fh; |
| 6906 | struct ppc_link_hash_entry *fdh; | |
| 6907 | bfd_boolean force_local; | |
| 5bd4f169 | 6908 | |
| 50bc7936 AM |
6909 | fh = (struct ppc_link_hash_entry *) h; |
| 6910 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6911 | return TRUE; |
| e86ce104 | 6912 | |
| 8c5b4e52 AM |
6913 | if (!fh->is_func) |
| 6914 | return TRUE; | |
| 6915 | ||
| 6916 | if (fh->elf.root.root.string[0] != '.' | |
| 6917 | || fh->elf.root.root.string[1] == '\0') | |
| 6918 | return TRUE; | |
| 6919 | ||
| 4ce794b7 | 6920 | info = inf; |
| 65f38f15 | 6921 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6922 | if (htab == NULL) |
| 6923 | return FALSE; | |
| 5bd4f169 | 6924 | |
| 8c5b4e52 AM |
6925 | /* Find the corresponding function descriptor symbol. */ |
| 6926 | fdh = lookup_fdh (fh, htab); | |
| 6927 | ||
| c09bdfe5 AM |
6928 | /* Resolve undefined references to dot-symbols as the value |
| 6929 | in the function descriptor, if we have one in a regular object. | |
| 6930 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6931 | in dynamic objects are handled elsewhere. */ | |
| 8c5b4e52 AM |
6932 | if ((fh->elf.root.type == bfd_link_hash_undefined |
| 6933 | || fh->elf.root.type == bfd_link_hash_undefweak) | |
| 6934 | && (fdh->elf.root.type == bfd_link_hash_defined | |
| 6935 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| b31867b6 AM |
6936 | && get_opd_info (fdh->elf.root.u.def.section) != NULL |
| 6937 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6938 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6939 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6940 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6941 | { |
| b31867b6 | 6942 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6943 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6944 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6945 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6946 | } |
| 6947 | ||
| 8c5b4e52 AM |
6948 | if (!fh->elf.dynamic) |
| 6949 | { | |
| 6950 | struct plt_entry *ent; | |
| 5bd4f169 | 6951 | |
| 8c5b4e52 AM |
6952 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 6953 | if (ent->plt.refcount > 0) | |
| 6954 | break; | |
| 6955 | if (ent == NULL) | |
| 6956 | return TRUE; | |
| 6957 | } | |
| 5bd4f169 | 6958 | |
| 8c5b4e52 | 6959 | /* Create a descriptor as undefined if necessary. */ |
| 50bc7936 | 6960 | if (fdh == NULL |
| 0e1862bb | 6961 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6962 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6963 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6964 | { | |
| 908b32fc | 6965 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6966 | if (fdh == NULL) |
| 6967 | return FALSE; | |
| 50bc7936 | 6968 | } |
| 648cca2c | 6969 | |
| 8c5b4e52 | 6970 | /* We can't support overriding of symbols on a fake descriptor. */ |
| 908b32fc AM |
6971 | if (fdh != NULL |
| 6972 | && fdh->fake | |
| 8c5b4e52 AM |
6973 | && (fh->elf.root.type == bfd_link_hash_defined |
| 6974 | || fh->elf.root.type == bfd_link_hash_defweak)) | |
| 6975 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 908b32fc | 6976 | |
| 8c5b4e52 AM |
6977 | /* Transfer dynamic linking information to the function descriptor. */ |
| 6978 | if (fdh != NULL) | |
| 6979 | { | |
| f5385ebf AM |
6980 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 6981 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 6982 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 6983 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 8c5b4e52 AM |
6984 | fdh->elf.dynamic |= fh->elf.dynamic; |
| 6985 | fdh->elf.needs_plt |= (fh->elf.needs_plt | |
| 6986 | || fh->elf.type == STT_FUNC | |
| 6987 | || fh->elf.type == STT_GNU_IFUNC); | |
| 6988 | move_plt_plist (fh, fdh); | |
| 6989 | ||
| 6990 | if (!fdh->elf.forced_local | |
| 6991 | && fh->elf.dynindx != -1) | |
| 6992 | if (!bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) | |
| 6993 | return FALSE; | |
| e86ce104 AM |
6994 | } |
| 6995 | ||
| 50bc7936 AM |
6996 | /* Now that the info is on the function descriptor, clear the |
| 6997 | function code sym info. Any function code syms for which we | |
| 6998 | don't have a definition in a regular file, we force local. | |
| 6999 | This prevents a shared library from exporting syms that have | |
| 7000 | been imported from another library. Function code syms that | |
| 7001 | are really in the library we must leave global to prevent the | |
| 7002 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7003 | force_local = (!fh->elf.def_regular |
| 7004 | || fdh == NULL | |
| 7005 | || !fdh->elf.def_regular | |
| 7006 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7007 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7008 | ||
| b34976b6 | 7009 | return TRUE; |
| e86ce104 | 7010 | } |
| 40b8271b | 7011 | |
| a4b6fadd AM |
7012 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7013 | { | |
| 7014 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7015 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7016 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7017 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7018 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7019 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7020 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7021 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7022 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7023 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7024 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7025 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7026 | }; | |
| 7027 | ||
| e86ce104 | 7028 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7029 | this hook to a) provide some gcc support functions, and b) transfer |
| 7030 | dynamic linking information gathered so far on function code symbol | |
| 7031 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7032 | |
| b34976b6 | 7033 | static bfd_boolean |
| 4ce794b7 AM |
7034 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7035 | struct bfd_link_info *info) | |
| e86ce104 AM |
7036 | { |
| 7037 | struct ppc_link_hash_table *htab; | |
| 7038 | ||
| 7039 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7040 | if (htab == NULL) |
| 7041 | return FALSE; | |
| 7042 | ||
| b32547cd AM |
7043 | /* Provide any missing _save* and _rest* functions. */ |
| 7044 | if (htab->sfpr != NULL) | |
| 7045 | { | |
| 7046 | unsigned int i; | |
| 7047 | ||
| 7048 | htab->sfpr->size = 0; | |
| 7049 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7050 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7051 | return FALSE; | |
| 7052 | if (htab->sfpr->size == 0) | |
| 7053 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7054 | } | |
| 7055 | ||
| 7056 | if (bfd_link_relocatable (info)) | |
| 7057 | return TRUE; | |
| 7058 | ||
| 7059 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7060 | { |
| 7061 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7062 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7063 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7064 | if (!htab->elf.hgot->def_regular |
| 7065 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7066 | { | |
| 7067 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7068 | htab->elf.hgot->root.u.def.value = 0; | |
| 7069 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7070 | htab->elf.hgot->def_regular = 1; | |
| 7071 | htab->elf.hgot->root.linker_def = 1; | |
| 7072 | } | |
| dba6fa9b | 7073 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7074 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7075 | | STV_HIDDEN); | |
| 7076 | } | |
| c66bb0ee | 7077 | |
| 8c5b4e52 AM |
7078 | if (htab->need_func_desc_adj) |
| 7079 | { | |
| 7080 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); | |
| 7081 | htab->need_func_desc_adj = 0; | |
| 7082 | } | |
| 805fc799 | 7083 | |
| b34976b6 | 7084 | return TRUE; |
| e86ce104 AM |
7085 | } |
| 7086 | ||
| 8a2058b5 AM |
7087 | /* Return true if we have dynamic relocs against H that apply to |
| 7088 | read-only sections. */ | |
| a345bc8d AM |
7089 | |
| 7090 | static bfd_boolean | |
| 7091 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7092 | { | |
| 7093 | struct ppc_link_hash_entry *eh; | |
| 7094 | struct elf_dyn_relocs *p; | |
| 7095 | ||
| 7096 | eh = (struct ppc_link_hash_entry *) h; | |
| 7097 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7098 | { | |
| 7099 | asection *s = p->sec->output_section; | |
| 7100 | ||
| 7101 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7102 | return TRUE; | |
| 7103 | } | |
| 7104 | return FALSE; | |
| 7105 | } | |
| 7106 | ||
| d311bc8b AM |
7107 | /* Return true if we have dynamic relocs against H or any of its weak |
| 7108 | aliases, that apply to read-only sections. */ | |
| 7109 | ||
| 7110 | static bfd_boolean | |
| 7111 | alias_readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7112 | { | |
| 7113 | struct ppc_link_hash_entry *eh; | |
| 7114 | ||
| 7115 | eh = (struct ppc_link_hash_entry *) h; | |
| 7116 | do | |
| 7117 | { | |
| 7118 | if (readonly_dynrelocs (&eh->elf)) | |
| 7119 | return TRUE; | |
| 7120 | eh = eh->weakref; | |
| 7121 | } while (eh != NULL && &eh->elf != h); | |
| 7122 | ||
| 7123 | return FALSE; | |
| 7124 | } | |
| 8a2058b5 | 7125 | |
| 8a9e8e72 AM |
7126 | /* Return whether EH has pc-relative dynamic relocs. */ |
| 7127 | ||
| 7128 | static bfd_boolean | |
| 7129 | pc_dynrelocs (struct ppc_link_hash_entry *eh) | |
| 7130 | { | |
| 7131 | struct elf_dyn_relocs *p; | |
| 7132 | ||
| 7133 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7134 | if (p->pc_count != 0) | |
| 7135 | return TRUE; | |
| 7136 | return FALSE; | |
| 7137 | } | |
| 7138 | ||
| 8a2058b5 AM |
7139 | /* Return true if a global entry stub will be created for H. Valid |
| 7140 | for ELFv2 before plt entries have been allocated. */ | |
| 7141 | ||
| 7142 | static bfd_boolean | |
| 7143 | global_entry_stub (struct elf_link_hash_entry *h) | |
| 7144 | { | |
| 7145 | struct plt_entry *pent; | |
| 7146 | ||
| 7147 | if (!h->pointer_equality_needed | |
| 7148 | || h->def_regular) | |
| 7149 | return FALSE; | |
| 7150 | ||
| 7151 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 7152 | if (pent->plt.refcount > 0 | |
| 7153 | && pent->addend == 0) | |
| 7154 | return TRUE; | |
| 7155 | ||
| 7156 | return FALSE; | |
| 7157 | } | |
| 7158 | ||
| e86ce104 AM |
7159 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7160 | regular object. The current definition is in some section of the | |
| 7161 | dynamic object, but we're not including those sections. We have to | |
| 7162 | change the definition to something the rest of the link can | |
| 7163 | understand. */ | |
| 7164 | ||
| b34976b6 | 7165 | static bfd_boolean |
| 4ce794b7 AM |
7166 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7167 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7168 | { |
| 7169 | struct ppc_link_hash_table *htab; | |
| 5474d94f | 7170 | asection *s, *srel; |
| e86ce104 AM |
7171 | |
| 7172 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7173 | if (htab == NULL) |
| 7174 | return FALSE; | |
| e86ce104 AM |
7175 | |
| 7176 | /* Deal with function syms. */ | |
| 7177 | if (h->type == STT_FUNC | |
| e054468f | 7178 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7179 | || h->needs_plt) |
| e86ce104 AM |
7180 | { |
| 7181 | /* Clear procedure linkage table information for any symbol that | |
| 7182 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7183 | struct plt_entry *ent; |
| 7184 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7185 | if (ent->plt.refcount > 0) | |
| 7186 | break; | |
| 8387904d | 7187 | if (ent == NULL |
| e054468f AM |
7188 | || (h->type != STT_GNU_IFUNC |
| 7189 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 21d68fcd | 7190 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, h))) |
| a4b6fadd | 7191 | || ((struct ppc_link_hash_entry *) h)->save_res) |
| 40b8271b | 7192 | { |
| 411e1bfb | 7193 | h->plt.plist = NULL; |
| f5385ebf | 7194 | h->needs_plt = 0; |
| d1eca1e4 | 7195 | h->pointer_equality_needed = 0; |
| 3988aed5 AM |
7196 | /* After adjust_dynamic_symbol, non_got_ref set in the |
| 7197 | non-pic case means that dyn_relocs for this symbol should | |
| 7198 | be discarded. We either want the symbol to remain | |
| 7199 | undefined, or we have a local definition of some sort. | |
| 7200 | The "local definition" for non-function symbols may be | |
| 7201 | due to creating a local definition in .dynbss, and for | |
| 7202 | ELFv2 function symbols, defining the symbol on the PLT | |
| 7203 | call stub code. Set non_got_ref here to ensure undef | |
| 7204 | weaks stay undefined. */ | |
| 7205 | h->non_got_ref = 1; | |
| 40b8271b | 7206 | } |
| 8a2058b5 | 7207 | else if (abiversion (info->output_bfd) >= 2) |
| a345bc8d | 7208 | { |
| d1eca1e4 AM |
7209 | /* Taking a function's address in a read/write section |
| 7210 | doesn't require us to define the function symbol in the | |
| 7211 | executable on a global entry stub. A dynamic reloc can | |
| 8a2058b5 AM |
7212 | be used instead. The reason we prefer a few more dynamic |
| 7213 | relocs is that calling via a global entry stub costs a | |
| 7214 | few more instructions, and pointer_equality_needed causes | |
| 7215 | extra work in ld.so when resolving these symbols. */ | |
| 7216 | if (global_entry_stub (h) | |
| d311bc8b | 7217 | && !alias_readonly_dynrelocs (h)) |
| d1eca1e4 AM |
7218 | { |
| 7219 | h->pointer_equality_needed = 0; | |
| 3988aed5 | 7220 | /* Say that we do want dynamic relocs. */ |
| d1eca1e4 | 7221 | h->non_got_ref = 0; |
| 3988aed5 AM |
7222 | /* If we haven't seen a branch reloc then we don't need |
| 7223 | a plt entry. */ | |
| 7224 | if (!h->needs_plt) | |
| 7225 | h->plt.plist = NULL; | |
| d1eca1e4 AM |
7226 | } |
| 7227 | ||
| 3988aed5 AM |
7228 | /* ELFv2 function symbols can't have copy relocs. */ |
| 7229 | return TRUE; | |
| 7230 | } | |
| 7231 | else if (!h->needs_plt | |
| 7232 | && !alias_readonly_dynrelocs (h)) | |
| 7233 | { | |
| 7234 | /* If we haven't seen a branch reloc then we don't need a | |
| 7235 | plt entry. */ | |
| 7236 | h->plt.plist = NULL; | |
| 7237 | h->pointer_equality_needed = 0; | |
| 7238 | h->non_got_ref = 0; | |
| a345bc8d AM |
7239 | return TRUE; |
| 7240 | } | |
| 5bd4f169 | 7241 | } |
| bbd7ec4a | 7242 | else |
| 411e1bfb | 7243 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7244 | |
| 7245 | /* If this is a weak symbol, and there is a real definition, the | |
| 7246 | processor independent code will have arranged for us to see the | |
| 7247 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7248 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7249 | { |
| f6e332e6 AM |
7250 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7251 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7252 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7253 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7254 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7255 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7256 | return TRUE; |
| 5bd4f169 AM |
7257 | } |
| 7258 | ||
| 5bd4f169 AM |
7259 | /* If we are creating a shared library, we must presume that the |
| 7260 | only references to the symbol are via the global offset table. | |
| 7261 | For such cases we need not do anything here; the relocations will | |
| 7262 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7263 | if (bfd_link_pic (info)) |
| b34976b6 | 7264 | return TRUE; |
| 5bd4f169 | 7265 | |
| 65f38f15 AM |
7266 | /* If there are no references to this symbol that do not use the |
| 7267 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7268 | if (!h->non_got_ref) |
| b34976b6 | 7269 | return TRUE; |
| 65f38f15 | 7270 | |
| b186458a | 7271 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| d93d1c80 | 7272 | if (!h->def_dynamic || !h->ref_regular || h->def_regular |
| b186458a | 7273 | |
| d93d1c80 AM |
7274 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7275 | || info->nocopyreloc | |
| a127494f | 7276 | |
| d93d1c80 AM |
7277 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7278 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| d311bc8b | 7279 | || (ELIMINATE_COPY_RELOCS && !alias_readonly_dynrelocs (h)) |
| 65f38f15 | 7280 | |
| d93d1c80 AM |
7281 | /* Protected variables do not work with .dynbss. The copy in |
| 7282 | .dynbss won't be used by the shared library with the protected | |
| 7283 | definition for the variable. Text relocations are preferable | |
| 7284 | to an incorrect program. */ | |
| 7285 | || h->protected_def) | |
| a127494f AM |
7286 | { |
| 7287 | h->non_got_ref = 0; | |
| 7288 | return TRUE; | |
| 7289 | } | |
| 7290 | ||
| 5d35169e | 7291 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7292 | { |
| 7293 | /* We should never get here, but unfortunately there are versions | |
| 7294 | of gcc out there that improperly (for this ABI) put initialized | |
| 7295 | function pointers, vtable refs and suchlike in read-only | |
| 7296 | sections. Allow them to proceed, but warn that this might | |
| 7297 | break at runtime. */ | |
| 25f53a85 | 7298 | info->callbacks->einfo |
| bc30df16 | 7299 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7300 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7301 | h->root.root.string); |
| 7302 | } | |
| 5d35169e AM |
7303 | |
| 7304 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7305 | is not a function. */ | |
| 7306 | ||
| 5bd4f169 AM |
7307 | /* We must allocate the symbol in our .dynbss section, which will |
| 7308 | become part of the .bss section of the executable. There will be | |
| 7309 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7310 | object will contain position independent code, so all references | |
| 7311 | from the dynamic object to this symbol will go through the global | |
| 7312 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7313 | determine the address it must put in the global offset table, so | |
| 7314 | both the dynamic object and the regular object will refer to the | |
| 7315 | same memory location for the variable. */ | |
| 5bd4f169 | 7316 | |
| 04c9666a AM |
7317 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7318 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7319 | runtime process image. We need to remember the offset into the |
| 7320 | .rela.bss section we are going to use. */ | |
| 5474d94f AM |
7321 | if ((h->root.u.def.section->flags & SEC_READONLY) != 0) |
| 7322 | { | |
| 7323 | s = htab->elf.sdynrelro; | |
| 7324 | srel = htab->elf.sreldynrelro; | |
| 7325 | } | |
| 7326 | else | |
| 7327 | { | |
| 7328 | s = htab->elf.sdynbss; | |
| 7329 | srel = htab->elf.srelbss; | |
| 7330 | } | |
| 1d7e9d18 | 7331 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7332 | { |
| 5474d94f | 7333 | srel->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7334 | h->needs_copy = 1; |
| 5bd4f169 AM |
7335 | } |
| 7336 | ||
| 6cabe1ea | 7337 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7338 | } |
| 7339 | ||
| e86ce104 AM |
7340 | /* If given a function descriptor symbol, hide both the function code |
| 7341 | sym and the descriptor. */ | |
| 7342 | static void | |
| 4ce794b7 AM |
7343 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7344 | struct elf_link_hash_entry *h, | |
| 7345 | bfd_boolean force_local) | |
| e86ce104 | 7346 | { |
| 34814b9f | 7347 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7348 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7349 | ||
| 34814b9f AM |
7350 | eh = (struct ppc_link_hash_entry *) h; |
| 7351 | if (eh->is_func_descriptor) | |
| e86ce104 | 7352 | { |
| 34814b9f | 7353 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7354 | |
| 721956f4 | 7355 | if (fh == NULL) |
| d1329ca3 AM |
7356 | { |
| 7357 | const char *p, *q; | |
| b8ac2841 | 7358 | struct elf_link_hash_table *htab = elf_hash_table (info); |
| d1329ca3 AM |
7359 | char save; |
| 7360 | ||
| 7361 | /* We aren't supposed to use alloca in BFD because on | |
| 7362 | systems which do not have alloca the version in libiberty | |
| 7363 | calls xmalloc, which might cause the program to crash | |
| 7364 | when it runs out of memory. This function doesn't have a | |
| 7365 | return status, so there's no way to gracefully return an | |
| 7366 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7367 | accessed; It's either a string in an ELF string table, |
| 7368 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7369 | |
| 34814b9f | 7370 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7371 | save = *p; |
| 7372 | *(char *) p = '.'; | |
| 34814b9f | 7373 | fh = (struct ppc_link_hash_entry *) |
| b8ac2841 | 7374 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7375 | *(char *) p = save; |
| 7376 | ||
| 7377 | /* Unfortunately, if it so happens that the string we were | |
| 7378 | looking for was allocated immediately before this string, | |
| 7379 | then we overwrote the string terminator. That's the only | |
| 7380 | reason the lookup should fail. */ | |
| 7381 | if (fh == NULL) | |
| 7382 | { | |
| 34814b9f AM |
7383 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7384 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7385 | --q, --p; |
| 34814b9f AM |
7386 | if (q < eh->elf.root.root.string && *p == '.') |
| 7387 | fh = (struct ppc_link_hash_entry *) | |
| b8ac2841 | 7388 | elf_link_hash_lookup (htab, p, FALSE, FALSE, FALSE); |
| d1329ca3 AM |
7389 | } |
| 7390 | if (fh != NULL) | |
| 7391 | { | |
| 34814b9f AM |
7392 | eh->oh = fh; |
| 7393 | fh->oh = eh; | |
| d1329ca3 AM |
7394 | } |
| 7395 | } | |
| e86ce104 | 7396 | if (fh != NULL) |
| 34814b9f | 7397 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7398 | } |
| 7399 | } | |
| 7400 | ||
| 411e1bfb | 7401 | static bfd_boolean |
| 8843416a AM |
7402 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7403 | Elf_Internal_Sym **symp, | |
| 7404 | asection **symsecp, | |
| f961d9dd | 7405 | unsigned char **tls_maskp, |
| 8843416a AM |
7406 | Elf_Internal_Sym **locsymsp, |
| 7407 | unsigned long r_symndx, | |
| 7408 | bfd *ibfd) | |
| 411e1bfb | 7409 | { |
| 0ffa91dd | 7410 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7411 | |
| 7412 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7413 | { | |
| 7414 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7415 | struct elf_link_hash_entry *h; | |
| 7416 | ||
| 7417 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7418 | h = elf_follow_link (h); |
| 411e1bfb AM |
7419 | |
| 7420 | if (hp != NULL) | |
| 7421 | *hp = h; | |
| 7422 | ||
| 7423 | if (symp != NULL) | |
| 7424 | *symp = NULL; | |
| 7425 | ||
| 7426 | if (symsecp != NULL) | |
| 7427 | { | |
| 7428 | asection *symsec = NULL; | |
| 7429 | if (h->root.type == bfd_link_hash_defined | |
| 7430 | || h->root.type == bfd_link_hash_defweak) | |
| 7431 | symsec = h->root.u.def.section; | |
| 7432 | *symsecp = symsec; | |
| 7433 | } | |
| 7434 | ||
| e7b938ca | 7435 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7436 | { |
| 7437 | struct ppc_link_hash_entry *eh; | |
| 7438 | ||
| 7439 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7440 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7441 | } |
| 7442 | } | |
| 7443 | else | |
| 7444 | { | |
| 7445 | Elf_Internal_Sym *sym; | |
| 7446 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7447 | ||
| 7448 | if (locsyms == NULL) | |
| 7449 | { | |
| 7450 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7451 | if (locsyms == NULL) | |
| 7452 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7453 | symtab_hdr->sh_info, | |
| 7454 | 0, NULL, NULL, NULL); | |
| 7455 | if (locsyms == NULL) | |
| 7456 | return FALSE; | |
| 7457 | *locsymsp = locsyms; | |
| 7458 | } | |
| 7459 | sym = locsyms + r_symndx; | |
| 7460 | ||
| 7461 | if (hp != NULL) | |
| 7462 | *hp = NULL; | |
| 7463 | ||
| 7464 | if (symp != NULL) | |
| 7465 | *symp = sym; | |
| 7466 | ||
| 7467 | if (symsecp != NULL) | |
| cb33740c | 7468 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7469 | |
| e7b938ca | 7470 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7471 | { |
| 7472 | struct got_entry **lgot_ents; | |
| f961d9dd | 7473 | unsigned char *tls_mask; |
| 411e1bfb | 7474 | |
| e7b938ca | 7475 | tls_mask = NULL; |
| 411e1bfb AM |
7476 | lgot_ents = elf_local_got_ents (ibfd); |
| 7477 | if (lgot_ents != NULL) | |
| 7478 | { | |
| e054468f AM |
7479 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7480 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7481 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7482 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7483 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7484 | } |
| e7b938ca | 7485 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7486 | } |
| 7487 | } | |
| 7488 | return TRUE; | |
| 7489 | } | |
| 7490 | ||
| e7b938ca | 7491 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7492 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7493 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7494 | |
| 7495 | static int | |
| f961d9dd | 7496 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7497 | unsigned long *toc_symndx, |
| 7498 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7499 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7500 | const Elf_Internal_Rela *rel, |
| 7501 | bfd *ibfd) | |
| 411e1bfb AM |
7502 | { |
| 7503 | unsigned long r_symndx; | |
| 0d4792f7 | 7504 | int next_r; |
| 411e1bfb AM |
7505 | struct elf_link_hash_entry *h; |
| 7506 | Elf_Internal_Sym *sym; | |
| 7507 | asection *sec; | |
| 7508 | bfd_vma off; | |
| 7509 | ||
| 7510 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7511 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7512 | return 0; |
| 411e1bfb | 7513 | |
| e7b938ca | 7514 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7515 | || sec == NULL |
| 6bee8834 | 7516 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7517 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7518 | return 1; |
| 411e1bfb AM |
7519 | |
| 7520 | /* Look inside a TOC section too. */ | |
| 7521 | if (h != NULL) | |
| 7522 | { | |
| 7523 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7524 | off = h->root.u.def.value; | |
| 7525 | } | |
| 7526 | else | |
| 7527 | off = sym->st_value; | |
| 7528 | off += rel->r_addend; | |
| 7529 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7530 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7531 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7532 | if (toc_symndx != NULL) |
| 7533 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7534 | if (toc_addend != NULL) |
| 7535 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7536 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7537 | return 0; | |
| 854b41e7 | 7538 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7539 | && (next_r == -1 || next_r == -2)) |
| 7540 | return 1 - next_r; | |
| 951fd09b | 7541 | return 1; |
| 411e1bfb AM |
7542 | } |
| 7543 | ||
| 3b421ab3 AM |
7544 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7545 | ||
| 7546 | static struct tocsave_entry * | |
| 7547 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7548 | enum insert_option insert, | |
| 7549 | Elf_Internal_Sym **local_syms, | |
| 7550 | const Elf_Internal_Rela *irela, | |
| 7551 | bfd *ibfd) | |
| 7552 | { | |
| 7553 | unsigned long r_indx; | |
| 7554 | struct elf_link_hash_entry *h; | |
| 7555 | Elf_Internal_Sym *sym; | |
| 7556 | struct tocsave_entry ent, *p; | |
| 7557 | hashval_t hash; | |
| 7558 | struct tocsave_entry **slot; | |
| 7559 | ||
| 7560 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7561 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7562 | return NULL; | |
| 7563 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7564 | { | |
| 4eca0228 | 7565 | _bfd_error_handler |
| 10463f39 | 7566 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation"), ibfd); |
| 3b421ab3 AM |
7567 | return NULL; |
| 7568 | } | |
| 7569 | ||
| 7570 | if (h != NULL) | |
| 7571 | ent.offset = h->root.u.def.value; | |
| 7572 | else | |
| 7573 | ent.offset = sym->st_value; | |
| 7574 | ent.offset += irela->r_addend; | |
| 7575 | ||
| 7576 | hash = tocsave_htab_hash (&ent); | |
| 7577 | slot = ((struct tocsave_entry **) | |
| 7578 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7579 | if (slot == NULL) | |
| 7580 | return NULL; | |
| 7581 | ||
| 7582 | if (*slot == NULL) | |
| 7583 | { | |
| 7584 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7585 | if (p == NULL) | |
| 7586 | return NULL; | |
| 7587 | *p = ent; | |
| 7588 | *slot = p; | |
| 7589 | } | |
| 7590 | return *slot; | |
| 7591 | } | |
| 7592 | ||
| 754021d0 | 7593 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7594 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7595 | |
| 7596 | static bfd_boolean | |
| 7597 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7598 | { | |
| 7599 | struct ppc_link_hash_entry *eh; | |
| 7600 | asection *sym_sec; | |
| 74f0fb50 | 7601 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7602 | |
| 7603 | if (h->root.type == bfd_link_hash_indirect) | |
| 7604 | return TRUE; | |
| 7605 | ||
| 754021d0 AM |
7606 | if (h->root.type != bfd_link_hash_defined |
| 7607 | && h->root.type != bfd_link_hash_defweak) | |
| 7608 | return TRUE; | |
| 7609 | ||
| 7610 | eh = (struct ppc_link_hash_entry *) h; | |
| 7611 | if (eh->adjust_done) | |
| 7612 | return TRUE; | |
| 7613 | ||
| 7614 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7615 | opd = get_opd_info (sym_sec); |
| 7616 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7617 | { |
| 51aecdc5 | 7618 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7619 | if (adjust == -1) |
| 7620 | { | |
| 7621 | /* This entry has been deleted. */ | |
| b3fac117 | 7622 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7623 | if (dsec == NULL) |
| 7624 | { | |
| 7625 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7626 | if (discarded_section (dsec)) |
| 81688140 | 7627 | { |
| b3fac117 | 7628 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7629 | break; |
| 7630 | } | |
| 7631 | } | |
| 4025353c | 7632 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7633 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7634 | } |
| 7635 | else | |
| 7636 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7637 | eh->adjust_done = 1; |
| 7638 | } | |
| 7639 | return TRUE; | |
| 7640 | } | |
| 7641 | ||
| 8c1d1bb8 | 7642 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7643 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7644 | have already been determined. */ |
| 7645 | ||
| 7646 | static bfd_boolean | |
| 7647 | dec_dynrel_count (bfd_vma r_info, | |
| 7648 | asection *sec, | |
| 7649 | struct bfd_link_info *info, | |
| 7650 | Elf_Internal_Sym **local_syms, | |
| 7651 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7652 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7653 | { |
| 7654 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7655 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7656 | |
| 7657 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7658 | should be kept in sync with the code in check_relocs. */ | |
| 7659 | r_type = ELF64_R_TYPE (r_info); | |
| 7660 | switch (r_type) | |
| 7661 | { | |
| 7662 | default: | |
| 7663 | return TRUE; | |
| 7664 | ||
| 7665 | case R_PPC64_TPREL16: | |
| 7666 | case R_PPC64_TPREL16_LO: | |
| 7667 | case R_PPC64_TPREL16_HI: | |
| 7668 | case R_PPC64_TPREL16_HA: | |
| 7669 | case R_PPC64_TPREL16_DS: | |
| 7670 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7671 | case R_PPC64_TPREL16_HIGH: |
| 7672 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7673 | case R_PPC64_TPREL16_HIGHER: |
| 7674 | case R_PPC64_TPREL16_HIGHERA: | |
| 7675 | case R_PPC64_TPREL16_HIGHEST: | |
| 7676 | case R_PPC64_TPREL16_HIGHESTA: | |
| 8c1d1bb8 AM |
7677 | case R_PPC64_TPREL64: |
| 7678 | case R_PPC64_DTPMOD64: | |
| 7679 | case R_PPC64_DTPREL64: | |
| 7680 | case R_PPC64_ADDR64: | |
| 7681 | case R_PPC64_REL30: | |
| 7682 | case R_PPC64_REL32: | |
| 7683 | case R_PPC64_REL64: | |
| 7684 | case R_PPC64_ADDR14: | |
| 7685 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7686 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7687 | case R_PPC64_ADDR16: | |
| 7688 | case R_PPC64_ADDR16_DS: | |
| 7689 | case R_PPC64_ADDR16_HA: | |
| 7690 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7691 | case R_PPC64_ADDR16_HIGH: |
| 7692 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7693 | case R_PPC64_ADDR16_HIGHER: |
| 7694 | case R_PPC64_ADDR16_HIGHERA: | |
| 7695 | case R_PPC64_ADDR16_HIGHEST: | |
| 7696 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7697 | case R_PPC64_ADDR16_LO: | |
| 7698 | case R_PPC64_ADDR16_LO_DS: | |
| 7699 | case R_PPC64_ADDR24: | |
| 7700 | case R_PPC64_ADDR32: | |
| 7701 | case R_PPC64_UADDR16: | |
| 7702 | case R_PPC64_UADDR32: | |
| 7703 | case R_PPC64_UADDR64: | |
| 7704 | case R_PPC64_TOC: | |
| 7705 | break; | |
| 7706 | } | |
| 7707 | ||
| 7708 | if (local_syms != NULL) | |
| 7709 | { | |
| 7710 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7711 | bfd *ibfd = sec->owner; |
| 7712 | ||
| 7713 | r_symndx = ELF64_R_SYM (r_info); | |
| 7714 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7715 | return FALSE; | |
| 7716 | } | |
| 7717 | ||
| 0e1862bb | 7718 | if ((bfd_link_pic (info) |
| 1d483afe | 7719 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7720 | || (h != NULL |
| 198f1157 | 7721 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7722 | || h->root.type == bfd_link_hash_defweak |
| 7723 | || !h->def_regular)))) | |
| 7724 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7725 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7726 | && h != NULL |
| 7727 | && (h->root.type == bfd_link_hash_defweak | |
| 7728 | || !h->def_regular))) | |
| 7729 | ; | |
| 7730 | else | |
| 7731 | return TRUE; | |
| 7732 | ||
| 7733 | if (h != NULL) | |
| 6edfbbad | 7734 | { |
| 19e08130 AM |
7735 | struct elf_dyn_relocs *p; |
| 7736 | struct elf_dyn_relocs **pp; | |
| 7737 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7738 | ||
| 7739 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7740 | with local syms for a given section. Also, symbol flags are | |
| 7741 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7742 | report a dynreloc miscount. */ | |
| 7743 | if (*pp == NULL && info->gc_sections) | |
| 7744 | return TRUE; | |
| 7745 | ||
| 7746 | while ((p = *pp) != NULL) | |
| 60124e18 | 7747 | { |
| 19e08130 AM |
7748 | if (p->sec == sec) |
| 7749 | { | |
| 7750 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7751 | p->pc_count -= 1; | |
| 7752 | p->count -= 1; | |
| 7753 | if (p->count == 0) | |
| 7754 | *pp = p->next; | |
| 7755 | return TRUE; | |
| 7756 | } | |
| 7757 | pp = &p->next; | |
| 60124e18 | 7758 | } |
| 6edfbbad | 7759 | } |
| 19e08130 AM |
7760 | else |
| 7761 | { | |
| 7762 | struct ppc_dyn_relocs *p; | |
| 7763 | struct ppc_dyn_relocs **pp; | |
| 7764 | void *vpp; | |
| 7765 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7766 | |
| 19e08130 AM |
7767 | if (local_syms == NULL) |
| 7768 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7769 | if (sym_sec == NULL) | |
| 7770 | sym_sec = sec; | |
| c57da1a7 | 7771 | |
| 19e08130 AM |
7772 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7773 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7774 | ||
| 7775 | if (*pp == NULL && info->gc_sections) | |
| 7776 | return TRUE; | |
| 7777 | ||
| 7778 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7779 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7780 | { |
| 19e08130 AM |
7781 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7782 | { | |
| 7783 | p->count -= 1; | |
| 7784 | if (p->count == 0) | |
| 7785 | *pp = p->next; | |
| 7786 | return TRUE; | |
| 7787 | } | |
| 7788 | pp = &p->next; | |
| 8c1d1bb8 | 7789 | } |
| 8c1d1bb8 AM |
7790 | } |
| 7791 | ||
| 695344c0 | 7792 | /* xgettext:c-format */ |
| 8de848d8 | 7793 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7794 | sec->owner, sec); |
| 8c1d1bb8 AM |
7795 | bfd_set_error (bfd_error_bad_value); |
| 7796 | return FALSE; | |
| 7797 | } | |
| 7798 | ||
| 754021d0 AM |
7799 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7800 | only remove those associated with functions in discarded link-once | |
| 7801 | sections, or weakly defined functions that have been overridden. It | |
| 7802 | would be possible to remove many more entries for statically linked | |
| 7803 | applications. */ | |
| 7804 | ||
| b34976b6 | 7805 | bfd_boolean |
| e7d1c40c | 7806 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7807 | { |
| 7808 | bfd *ibfd; | |
| 754021d0 | 7809 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7810 | asection *need_pad = NULL; |
| e7d1c40c AM |
7811 | struct ppc_link_hash_table *htab; |
| 7812 | ||
| 7813 | htab = ppc_hash_table (info); | |
| 7814 | if (htab == NULL) | |
| 7815 | return FALSE; | |
| 1e2f5b6e | 7816 | |
| c72f2fb2 | 7817 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7818 | { |
| 7819 | asection *sec; | |
| 7820 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7821 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7822 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7823 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7824 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7825 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7826 | |
| 854b41e7 AM |
7827 | if (!is_ppc64_elf (ibfd)) |
| 7828 | continue; | |
| 7829 | ||
| 1e2f5b6e | 7830 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7831 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7832 | continue; |
| 7833 | ||
| dbaa2011 | 7834 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7835 | continue; |
| 7836 | ||
| 1e2f5b6e AM |
7837 | if (sec->output_section == bfd_abs_section_ptr) |
| 7838 | continue; | |
| 7839 | ||
| 7840 | /* Look through the section relocs. */ | |
| 7841 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7842 | continue; | |
| 7843 | ||
| 6cdc0ccc | 7844 | local_syms = NULL; |
| 0ffa91dd | 7845 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7846 | |
| 7847 | /* Read the relocations. */ | |
| 4ce794b7 | 7848 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7849 | info->keep_memory); |
| 1e2f5b6e | 7850 | if (relstart == NULL) |
| b34976b6 | 7851 | return FALSE; |
| 1e2f5b6e AM |
7852 | |
| 7853 | /* First run through the relocs to check they are sane, and to | |
| 7854 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7855 | need_edit = FALSE; |
| 51aecdc5 | 7856 | broken = FALSE; |
| 3f764659 | 7857 | need_pad = sec; |
| 1e2f5b6e | 7858 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7859 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7860 | { |
| 04c9666a | 7861 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7862 | unsigned long r_symndx; |
| 7863 | asection *sym_sec; | |
| 7864 | struct elf_link_hash_entry *h; | |
| 7865 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7866 | bfd_vma offset; |
| 1e2f5b6e | 7867 | |
| 51aecdc5 | 7868 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7869 | only interested in the reloc pointing to a function entry |
| 7870 | point. */ | |
| 51aecdc5 AM |
7871 | offset = rel->r_offset; |
| 7872 | if (rel + 1 == relend | |
| 7873 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7874 | { |
| 7875 | /* If someone messes with .opd alignment then after a | |
| 7876 | "ld -r" we might have padding in the middle of .opd. | |
| 7877 | Also, there's nothing to prevent someone putting | |
| 7878 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7879 | optimization for them! */ |
| 3f764659 | 7880 | broken_opd: |
| 4eca0228 | 7881 | _bfd_error_handler |
| d003868e | 7882 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7883 | broken = TRUE; |
| 1e2f5b6e AM |
7884 | break; |
| 7885 | } | |
| 7886 | ||
| 50bc7936 AM |
7887 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7888 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7889 | { | |
| 4eca0228 | 7890 | _bfd_error_handler |
| 695344c0 | 7891 | /* xgettext:c-format */ |
| d003868e AM |
7892 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7893 | ibfd, r_type); | |
| 51aecdc5 | 7894 | broken = TRUE; |
| 50bc7936 AM |
7895 | break; |
| 7896 | } | |
| 7897 | ||
| 1e2f5b6e | 7898 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7899 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7900 | r_symndx, ibfd)) | |
| 50bc7936 | 7901 | goto error_ret; |
| 1e2f5b6e AM |
7902 | |
| 7903 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7904 | { | |
| 411e1bfb AM |
7905 | const char *sym_name; |
| 7906 | if (h != NULL) | |
| 7907 | sym_name = h->root.root.string; | |
| 7908 | else | |
| 26c61ae5 L |
7909 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7910 | sym_sec); | |
| 411e1bfb | 7911 | |
| 4eca0228 | 7912 | _bfd_error_handler |
| 695344c0 | 7913 | /* xgettext:c-format */ |
| d003868e AM |
7914 | (_("%B: undefined sym `%s' in .opd section"), |
| 7915 | ibfd, sym_name); | |
| 51aecdc5 | 7916 | broken = TRUE; |
| 1e2f5b6e AM |
7917 | break; |
| 7918 | } | |
| 7919 | ||
| 51020317 AM |
7920 | /* opd entries are always for functions defined in the |
| 7921 | current input bfd. If the symbol isn't defined in the | |
| 7922 | input bfd, then we won't be using the function in this | |
| 7923 | bfd; It must be defined in a linkonce section in another | |
| 7924 | bfd, or is weak. It's also possible that we are | |
| 7925 | discarding the function due to a linker script /DISCARD/, | |
| 7926 | which we test for via the output_section. */ | |
| 7927 | if (sym_sec->owner != ibfd | |
| 7928 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7929 | need_edit = TRUE; |
| 1e2f5b6e | 7930 | |
| 50bc7936 | 7931 | rel += 2; |
| 51aecdc5 AM |
7932 | if (rel + 1 == relend |
| 7933 | || (rel + 2 < relend | |
| 7934 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7935 | ++rel; | |
| 7936 | ||
| 7937 | if (rel == relend) | |
| 3f764659 JJ |
7938 | { |
| 7939 | if (sec->size == offset + 24) | |
| 7940 | { | |
| 7941 | need_pad = NULL; | |
| 7942 | break; | |
| 7943 | } | |
| 51aecdc5 | 7944 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7945 | { |
| 7946 | cnt_16b++; | |
| 7947 | break; | |
| 7948 | } | |
| 7949 | goto broken_opd; | |
| 7950 | } | |
| 3f764659 JJ |
7951 | else if (rel + 1 < relend |
| 7952 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7953 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7954 | { | |
| 51aecdc5 AM |
7955 | if (rel[0].r_offset == offset + 16) |
| 7956 | cnt_16b++; | |
| 7957 | else if (rel[0].r_offset != offset + 24) | |
| 7958 | goto broken_opd; | |
| 3f764659 JJ |
7959 | } |
| 7960 | else | |
| 7961 | goto broken_opd; | |
| 1e2f5b6e AM |
7962 | } |
| 7963 | ||
| e7d1c40c | 7964 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7965 | |
| 51aecdc5 | 7966 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7967 | { |
| 7968 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7969 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7970 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7971 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7972 | bfd_size_type amt; |
| 7973 | ||
| 983bddc8 | 7974 | new_contents = NULL; |
| 51aecdc5 | 7975 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7976 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7977 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7978 | if (opd->adjust == NULL) |
| 7979 | return FALSE; | |
| 1e2f5b6e AM |
7980 | |
| 7981 | /* This seems a waste of time as input .opd sections are all | |
| 7982 | zeros as generated by gcc, but I suppose there's no reason | |
| 7983 | this will always be so. We might start putting something in | |
| 7984 | the third word of .opd entries. */ | |
| 7985 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7986 | { | |
| eea6121a AM |
7987 | bfd_byte *loc; |
| 7988 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7989 | { |
| eea6121a AM |
7990 | if (loc != NULL) |
| 7991 | free (loc); | |
| 50bc7936 | 7992 | error_ret: |
| 6cdc0ccc AM |
7993 | if (local_syms != NULL |
| 7994 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7995 | free (local_syms); | |
| 6cdc0ccc AM |
7996 | if (elf_section_data (sec)->relocs != relstart) |
| 7997 | free (relstart); | |
| b34976b6 | 7998 | return FALSE; |
| 6cdc0ccc | 7999 | } |
| 1e2f5b6e AM |
8000 | sec->contents = loc; |
| 8001 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8002 | } | |
| 8003 | ||
| 8004 | elf_section_data (sec)->relocs = relstart; | |
| 8005 | ||
| 3f764659 | 8006 | new_contents = sec->contents; |
| 3f764659 JJ |
8007 | if (add_aux_fields) |
| 8008 | { | |
| 8009 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 8010 | if (new_contents == NULL) | |
| 8011 | return FALSE; | |
| 51aecdc5 | 8012 | need_pad = NULL; |
| 3f764659 | 8013 | } |
| b4f4e59f AM |
8014 | wptr = new_contents; |
| 8015 | rptr = sec->contents; | |
| 1e2f5b6e | 8016 | write_rel = relstart; |
| 51aecdc5 | 8017 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 8018 | { |
| 50bc7936 AM |
8019 | unsigned long r_symndx; |
| 8020 | asection *sym_sec; | |
| 8021 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 8022 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 8023 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
8024 | long opd_ent_size; |
| 8025 | Elf_Internal_Rela *next_rel; | |
| 8026 | bfd_boolean skip; | |
| 50bc7936 AM |
8027 | |
| 8028 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8029 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 8030 | r_symndx, ibfd)) |
| 50bc7936 AM |
8031 | goto error_ret; |
| 8032 | ||
| 51aecdc5 AM |
8033 | next_rel = rel + 2; |
| 8034 | if (next_rel + 1 == relend | |
| 8035 | || (next_rel + 2 < relend | |
| 8036 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 8037 | ++next_rel; | |
| 8038 | ||
| 8039 | /* See if the .opd entry is full 24 byte or | |
| 8040 | 16 byte (with fd_aux entry overlapped with next | |
| 8041 | fd_func). */ | |
| 8042 | opd_ent_size = 24; | |
| 8043 | if (next_rel == relend) | |
| 1e2f5b6e | 8044 | { |
| 51aecdc5 | 8045 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8046 | opd_ent_size = 16; |
| 51aecdc5 AM |
8047 | } |
| 8048 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8049 | opd_ent_size = 16; | |
| 3f764659 | 8050 | |
| 51aecdc5 AM |
8051 | if (h != NULL |
| 8052 | && h->root.root.string[0] == '.') | |
| 8053 | { | |
| 8c5b4e52 AM |
8054 | fdh = ((struct ppc_link_hash_entry *) h)->oh; |
| 8055 | if (fdh != NULL) | |
| 8056 | { | |
| 8057 | fdh = ppc_follow_link (fdh); | |
| 8058 | if (fdh->elf.root.type != bfd_link_hash_defined | |
| 8059 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8060 | fdh = NULL; | |
| 8061 | } | |
| 51aecdc5 | 8062 | } |
| 1e2f5b6e | 8063 | |
| 51aecdc5 AM |
8064 | skip = (sym_sec->owner != ibfd |
| 8065 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8066 | if (skip) | |
| 8067 | { | |
| 8068 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8069 | { |
| 51aecdc5 AM |
8070 | /* Arrange for the function descriptor sym |
| 8071 | to be dropped. */ | |
| 8072 | fdh->elf.root.u.def.value = 0; | |
| 8073 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8074 | } |
| 51aecdc5 | 8075 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8076 | |
| 0e1862bb | 8077 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8078 | rel = next_rel; |
| 8079 | else | |
| 8080 | while (1) | |
| 8081 | { | |
| 8082 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8083 | NULL, h, sym)) | |
| 8084 | goto error_ret; | |
| 754021d0 | 8085 | |
| 51aecdc5 AM |
8086 | if (++rel == next_rel) |
| 8087 | break; | |
| 1e2f5b6e | 8088 | |
| 51aecdc5 AM |
8089 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8090 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8091 | r_symndx, ibfd)) | |
| 8092 | goto error_ret; | |
| 8093 | } | |
| 50bc7936 AM |
8094 | } |
| 8095 | else | |
| 1e2f5b6e | 8096 | { |
| 51aecdc5 AM |
8097 | /* We'll be keeping this opd entry. */ |
| 8098 | long adjust; | |
| 8099 | ||
| 8100 | if (fdh != NULL) | |
| 8101 | { | |
| 8102 | /* Redefine the function descriptor symbol to | |
| 8103 | this location in the opd section. It is | |
| 8104 | necessary to update the value here rather | |
| 8105 | than using an array of adjustments as we do | |
| 8106 | for local symbols, because various places | |
| 8107 | in the generic ELF code use the value | |
| 8108 | stored in u.def.value. */ | |
| 8109 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8110 | fdh->adjust_done = 1; | |
| 8111 | } | |
| 8112 | ||
| 8113 | /* Local syms are a bit tricky. We could | |
| 8114 | tweak them as they can be cached, but | |
| 8115 | we'd need to look through the local syms | |
| 8116 | for the function descriptor sym which we | |
| 8117 | don't have at the moment. So keep an | |
| 8118 | array of adjustments. */ | |
| 8119 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8120 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8121 | ||
| 8122 | if (wptr != rptr) | |
| 8123 | memcpy (wptr, rptr, opd_ent_size); | |
| 8124 | wptr += opd_ent_size; | |
| 8125 | if (add_aux_fields && opd_ent_size == 16) | |
| 8126 | { | |
| 8127 | memset (wptr, '\0', 8); | |
| 8128 | wptr += 8; | |
| 8129 | } | |
| 8130 | ||
| 50bc7936 | 8131 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8132 | new opd entries. */ |
| 8133 | for ( ; rel != next_rel; ++rel) | |
| 8134 | { | |
| 8135 | rel->r_offset += adjust; | |
| 8136 | if (write_rel != rel) | |
| 8137 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8138 | ++write_rel; | |
| 8139 | } | |
| 1e2f5b6e | 8140 | } |
| 51aecdc5 AM |
8141 | |
| 8142 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8143 | } |
| 8144 | ||
| 3f764659 | 8145 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8146 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8147 | if (add_aux_fields) |
| 8148 | { | |
| 8149 | free (sec->contents); | |
| 8150 | sec->contents = new_contents; | |
| 8151 | } | |
| 8152 | ||
| 05bf9422 | 8153 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8154 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8155 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8156 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8157 | some_edited = TRUE; |
| 1e2f5b6e | 8158 | } |
| 6cdc0ccc | 8159 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8160 | free (relstart); |
| 6cdc0ccc | 8161 | |
| 411e1bfb AM |
8162 | if (local_syms != NULL |
| 8163 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8164 | { | |
| 8165 | if (!info->keep_memory) | |
| 8166 | free (local_syms); | |
| 8167 | else | |
| 8168 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8169 | } | |
| 8170 | } | |
| 8171 | ||
| 754021d0 AM |
8172 | if (some_edited) |
| 8173 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8174 | ||
| 3f764659 JJ |
8175 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8176 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8177 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8178 | { |
| 8179 | bfd_byte *p; | |
| 8180 | ||
| 8181 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8182 | { | |
| 8183 | BFD_ASSERT (need_pad->size > 0); | |
| 8184 | ||
| 8185 | p = bfd_malloc (need_pad->size + 8); | |
| 8186 | if (p == NULL) | |
| 8187 | return FALSE; | |
| 699733f6 | 8188 | |
| 3f764659 JJ |
8189 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8190 | p, 0, need_pad->size)) | |
| 8191 | return FALSE; | |
| 8192 | ||
| 8193 | need_pad->contents = p; | |
| 8194 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8195 | } | |
| 8196 | else | |
| 8197 | { | |
| 8198 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8199 | if (p == NULL) | |
| 8200 | return FALSE; | |
| 8201 | ||
| 8202 | need_pad->contents = p; | |
| 8203 | } | |
| 8204 | ||
| 8205 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8206 | need_pad->size += 8; | |
| 8207 | } | |
| 8208 | ||
| 411e1bfb AM |
8209 | return TRUE; |
| 8210 | } | |
| 8211 | ||
| e1918d23 | 8212 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8213 | |
| e1918d23 | 8214 | asection * |
| e7d1c40c | 8215 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8216 | { |
| 411e1bfb AM |
8217 | struct ppc_link_hash_table *htab; |
| 8218 | ||
| 411e1bfb | 8219 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8220 | if (htab == NULL) |
| 8221 | return NULL; | |
| 8222 | ||
| ee67d69a AM |
8223 | if (abiversion (info->output_bfd) == 1) |
| 8224 | htab->opd_abi = 1; | |
| 8225 | ||
| e7d1c40c | 8226 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8227 | htab->do_multi_toc = 0; |
| 8228 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8229 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8230 | |
| 8b5f1ed8 AM |
8231 | /* Default to --no-plt-localentry, as this option can cause problems |
| 8232 | with symbol interposition. For example, glibc libpthread.so and | |
| 8233 | libc.so duplicate many pthread symbols, with a fallback | |
| 8234 | implementation in libc.so. In some cases the fallback does more | |
| 8235 | work than the pthread implementation. __pthread_condattr_destroy | |
| 8236 | is one such symbol: the libpthread.so implementation is | |
| 8237 | localentry:0 while the libc.so implementation is localentry:8. | |
| 8238 | An app that "cleverly" uses dlopen to only load necessary | |
| 8239 | libraries at runtime may omit loading libpthread.so when not | |
| 8240 | running multi-threaded, which then results in the libc.so | |
| 8241 | fallback symbols being used and ld.so complaining. Now there | |
| 8242 | are workarounds in ld (see non_zero_localentry) to detect the | |
| 8243 | pthread situation, but that may not be the only case where | |
| 8244 | --plt-localentry can cause trouble. */ | |
| f378ab09 | 8245 | if (htab->params->plt_localentry0 < 0) |
| 8b5f1ed8 | 8246 | htab->params->plt_localentry0 = 0; |
| d44c746a AM |
8247 | if (htab->params->plt_localentry0 |
| 8248 | && elf_link_hash_lookup (&htab->elf, "GLIBC_2.26", | |
| 8249 | FALSE, FALSE, FALSE) == NULL) | |
| 8250 | info->callbacks->einfo | |
| 8251 | (_("%P: warning: --plt-localentry is especially dangerous without " | |
| 8252 | "ld.so support to detect ABI violations.\n")); | |
| f378ab09 | 8253 | |
| 3a71aa26 AM |
8254 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8255 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8256 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8257 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8258 | if (htab->tls_get_addr != NULL) | |
| 8259 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8260 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8261 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8262 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8263 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8264 | { |
| 8265 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8266 | ||
| 8267 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8268 | FALSE, FALSE, TRUE); | |
| 8269 | if (opt != NULL) | |
| 8270 | func_desc_adjust (opt, info); | |
| 8271 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8272 | FALSE, FALSE, TRUE); | |
| 8273 | if (opt_fd != NULL | |
| 8274 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8275 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8276 | { | |
| 8277 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8278 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8279 | be calling __tls_get_addr via a plt call stub, then | |
| 8280 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8281 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8282 | if (htab->elf.dynamic_sections_created | |
| 8283 | && tga_fd != NULL | |
| 8284 | && (tga_fd->type == STT_FUNC | |
| 8285 | || tga_fd->needs_plt) | |
| 8286 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 21d68fcd | 8287 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, tga_fd))) |
| a7f2871e AM |
8288 | { |
| 8289 | struct plt_entry *ent; | |
| 8290 | ||
| 8291 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8292 | if (ent->plt.refcount > 0) | |
| 8293 | break; | |
| 8294 | if (ent != NULL) | |
| 8295 | { | |
| 8296 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8297 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8298 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| b531344c | 8299 | opt_fd->mark = 1; |
| a7f2871e AM |
8300 | if (opt_fd->dynindx != -1) |
| 8301 | { | |
| 8302 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8303 | opt_fd->dynindx = -1; | |
| 8304 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8305 | opt_fd->dynstr_index); | |
| 8306 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8307 | return NULL; |
| a7f2871e AM |
8308 | } |
| 8309 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8310 | tga = &htab->tls_get_addr->elf; | |
| 8311 | if (opt != NULL && tga != NULL) | |
| 8312 | { | |
| 8313 | tga->root.type = bfd_link_hash_indirect; | |
| 8314 | tga->root.u.i.link = &opt->root; | |
| 8315 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| b531344c | 8316 | opt->mark = 1; |
| a7f2871e AM |
8317 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8318 | tga->forced_local); | |
| 8319 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8320 | } | |
| 8321 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8322 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8323 | if (htab->tls_get_addr != NULL) | |
| 8324 | { | |
| 8325 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8326 | htab->tls_get_addr->is_func = 1; | |
| 8327 | } | |
| 8328 | } | |
| 8329 | } | |
| 8330 | } | |
| 7c9cf415 AM |
8331 | else if (htab->params->tls_get_addr_opt < 0) |
| 8332 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8333 | } |
| 33c0ec9d | 8334 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8335 | } |
| 8387904d | 8336 | |
| 3a71aa26 AM |
8337 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8338 | HASH1 or HASH2. */ | |
| 8387904d | 8339 | |
| 3a71aa26 AM |
8340 | static bfd_boolean |
| 8341 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8342 | const Elf_Internal_Rela *rel, | |
| 8343 | const struct ppc_link_hash_entry *hash1, | |
| 8344 | const struct ppc_link_hash_entry *hash2) | |
| 8345 | { | |
| 8346 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8347 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8348 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8349 | ||
| e054468f | 8350 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8351 | { |
| 3a71aa26 AM |
8352 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8353 | struct elf_link_hash_entry *h; | |
| 8387904d | 8354 | |
| 3a71aa26 | 8355 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8356 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8357 | if (h == &hash1->elf || h == &hash2->elf) |
| 8358 | return TRUE; | |
| a48ebf4d | 8359 | } |
| 3a71aa26 | 8360 | return FALSE; |
| 951fd09b | 8361 | } |
| 411e1bfb | 8362 | |
| 951fd09b AM |
8363 | /* Run through all the TLS relocs looking for optimization |
| 8364 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8365 | a preliminary section layout so that we know the TLS segment | |
| 8366 | offsets. We can't optimize earlier because some optimizations need | |
| 8367 | to know the tp offset, and we need to optimize before allocating | |
| 8368 | dynamic relocations. */ | |
| 8369 | ||
| 8370 | bfd_boolean | |
| 33c0ec9d | 8371 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8372 | { |
| 8373 | bfd *ibfd; | |
| 8374 | asection *sec; | |
| 8375 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8376 | unsigned char *toc_ref; |
| 102890f0 | 8377 | int pass; |
| 951fd09b | 8378 | |
| 3cbc1e5e | 8379 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8380 | return TRUE; |
| 8381 | ||
| 951fd09b | 8382 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8383 | if (htab == NULL) |
| 8384 | return FALSE; | |
| 8385 | ||
| 663a1470 AM |
8386 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8387 | entries involved with tls relocs, and check that tls relocs | |
| 8388 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8389 | such a call. If they are not, we can't do any tls optimization. | |
| 8390 | On the second pass twiddle tls_mask flags to notify | |
| 8391 | relocate_section that optimization can be done, and adjust got | |
| 8392 | and plt refcounts. */ | |
| 8393 | toc_ref = NULL; | |
| 8394 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8395 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8396 | { |
| 8397 | Elf_Internal_Sym *locsyms = NULL; | |
| 8398 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8399 | ||
| 102890f0 AM |
8400 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8401 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8402 | { | |
| 8403 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8404 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8405 | |
| 102890f0 AM |
8406 | /* Read the relocations. */ |
| 8407 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8408 | info->keep_memory); | |
| 8409 | if (relstart == NULL) | |
| 2915c55b JK |
8410 | { |
| 8411 | free (toc_ref); | |
| 8412 | return FALSE; | |
| 8413 | } | |
| 411e1bfb | 8414 | |
| 102890f0 AM |
8415 | relend = relstart + sec->reloc_count; |
| 8416 | for (rel = relstart; rel < relend; rel++) | |
| 8417 | { | |
| 8418 | enum elf_ppc64_reloc_type r_type; | |
| 8419 | unsigned long r_symndx; | |
| 8420 | struct elf_link_hash_entry *h; | |
| 8421 | Elf_Internal_Sym *sym; | |
| 8422 | asection *sym_sec; | |
| f961d9dd AM |
8423 | unsigned char *tls_mask; |
| 8424 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8425 | bfd_vma value; |
| 8426 | bfd_boolean ok_tprel, is_local; | |
| 8427 | long toc_ref_index = 0; | |
| 8428 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8429 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8430 | |
| 102890f0 AM |
8431 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8432 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8433 | r_symndx, ibfd)) | |
| 8434 | { | |
| 8435 | err_free_rel: | |
| 8436 | if (elf_section_data (sec)->relocs != relstart) | |
| 8437 | free (relstart); | |
| 8438 | if (toc_ref != NULL) | |
| 8439 | free (toc_ref); | |
| 8440 | if (locsyms != NULL | |
| 0ffa91dd | 8441 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8442 | != (unsigned char *) locsyms)) |
| 8443 | free (locsyms); | |
| 663a1470 | 8444 | return ret; |
| 102890f0 | 8445 | } |
| 411e1bfb | 8446 | |
| 102890f0 AM |
8447 | if (h != NULL) |
| 8448 | { | |
| 766bc656 AM |
8449 | if (h->root.type == bfd_link_hash_defined |
| 8450 | || h->root.type == bfd_link_hash_defweak) | |
| 8451 | value = h->root.u.def.value; | |
| 8452 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8453 | value = 0; | |
| 8454 | else | |
| 663a1470 AM |
8455 | { |
| 8456 | found_tls_get_addr_arg = 0; | |
| 8457 | continue; | |
| 8458 | } | |
| 102890f0 AM |
8459 | } |
| 8460 | else | |
| 8461 | /* Symbols referenced by TLS relocs must be of type | |
| 8462 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8463 | value = sym->st_value; | |
| 8464 | ||
| 8465 | ok_tprel = FALSE; | |
| 8466 | is_local = FALSE; | |
| 8467 | if (h == NULL | |
| 8468 | || !h->def_dynamic) | |
| 8469 | { | |
| 8470 | is_local = TRUE; | |
| 766bc656 AM |
8471 | if (h != NULL |
| 8472 | && h->root.type == bfd_link_hash_undefweak) | |
| 8473 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8474 | else if (sym_sec != NULL |
| 8475 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8476 | { |
| 8477 | value += sym_sec->output_offset; | |
| 8478 | value += sym_sec->output_section->vma; | |
| 8479 | value -= htab->elf.tls_sec->vma; | |
| 8480 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8481 | < (bfd_vma) 1 << 32); | |
| 8482 | } | |
| 102890f0 | 8483 | } |
| 951fd09b | 8484 | |
| 102890f0 | 8485 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8486 | /* If this section has old-style __tls_get_addr calls |
| 8487 | without marker relocs, then check that each | |
| 8488 | __tls_get_addr call reloc is preceded by a reloc | |
| 8489 | that conceivably belongs to the __tls_get_addr arg | |
| 8490 | setup insn. If we don't find matching arg setup | |
| 8491 | relocs, don't do any tls optimization. */ | |
| 8492 | if (pass == 0 | |
| 8493 | && sec->has_tls_get_addr_call | |
| 8494 | && h != NULL | |
| 8495 | && (h == &htab->tls_get_addr->elf | |
| 8496 | || h == &htab->tls_get_addr_fd->elf) | |
| 8497 | && !found_tls_get_addr_arg | |
| 8498 | && is_branch_reloc (r_type)) | |
| 8499 | { | |
| 25f53a85 | 8500 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8501 | "TLS optimization disabled\n"), |
| 8502 | ibfd, sec, rel->r_offset); | |
| 8503 | ret = TRUE; | |
| 8504 | goto err_free_rel; | |
| 8505 | } | |
| 8506 | ||
| 8507 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8508 | switch (r_type) |
| 8509 | { | |
| 8510 | case R_PPC64_GOT_TLSLD16: | |
| 8511 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8512 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8513 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8514 | /* Fall through. */ |
| 102890f0 AM |
8515 | |
| 8516 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8517 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8518 | /* These relocs should never be against a symbol | |
| 8519 | defined in a shared lib. Leave them alone if | |
| 8520 | that turns out to be the case. */ | |
| 8521 | if (!is_local) | |
| 8522 | continue; | |
| 411e1bfb | 8523 | |
| 102890f0 | 8524 | /* LD -> LE */ |
| 411e1bfb | 8525 | tls_set = 0; |
| 102890f0 AM |
8526 | tls_clear = TLS_LD; |
| 8527 | tls_type = TLS_TLS | TLS_LD; | |
| 8528 | break; | |
| 411e1bfb | 8529 | |
| 102890f0 AM |
8530 | case R_PPC64_GOT_TLSGD16: |
| 8531 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8532 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8533 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8534 | /* Fall through. */ |
| 102890f0 AM |
8535 | |
| 8536 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8537 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8538 | if (ok_tprel) | |
| 8539 | /* GD -> LE */ | |
| 411e1bfb | 8540 | tls_set = 0; |
| 102890f0 AM |
8541 | else |
| 8542 | /* GD -> IE */ | |
| 8543 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8544 | tls_clear = TLS_GD; | |
| 8545 | tls_type = TLS_TLS | TLS_GD; | |
| 8546 | break; | |
| 8547 | ||
| 8548 | case R_PPC64_GOT_TPREL16_DS: | |
| 8549 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8550 | case R_PPC64_GOT_TPREL16_HI: | |
| 8551 | case R_PPC64_GOT_TPREL16_HA: | |
| 8552 | if (ok_tprel) | |
| 8553 | { | |
| 8554 | /* IE -> LE */ | |
| 8555 | tls_set = 0; | |
| 8556 | tls_clear = TLS_TPREL; | |
| 8557 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8558 | break; | |
| 8559 | } | |
| 411e1bfb AM |
8560 | continue; |
| 8561 | ||
| 727fc41e AM |
8562 | case R_PPC64_TLSGD: |
| 8563 | case R_PPC64_TLSLD: | |
| 663a1470 | 8564 | found_tls_get_addr_arg = 1; |
| 1a0670f3 | 8565 | /* Fall through. */ |
| 663a1470 AM |
8566 | |
| 8567 | case R_PPC64_TLS: | |
| 8568 | case R_PPC64_TOC16: | |
| 8569 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8570 | if (sym_sec == NULL || sym_sec != toc) |
| 8571 | continue; | |
| 8572 | ||
| 8573 | /* Mark this toc entry as referenced by a TLS | |
| 8574 | code sequence. We can do that now in the | |
| 8575 | case of R_PPC64_TLS, and after checking for | |
| 8576 | tls_get_addr for the TOC16 relocs. */ | |
| 8577 | if (toc_ref == NULL) | |
| 663a1470 AM |
8578 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8579 | if (toc_ref == NULL) | |
| 8580 | goto err_free_rel; | |
| 8581 | ||
| 102890f0 AM |
8582 | if (h != NULL) |
| 8583 | value = h->root.u.def.value; | |
| 8584 | else | |
| 8585 | value = sym->st_value; | |
| 8586 | value += rel->r_addend; | |
| 73242275 AM |
8587 | if (value % 8 != 0) |
| 8588 | continue; | |
| 8589 | BFD_ASSERT (value < toc->size | |
| 8590 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8591 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8592 | if (r_type == R_PPC64_TLS |
| 8593 | || r_type == R_PPC64_TLSGD | |
| 8594 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8595 | { |
| 8596 | toc_ref[toc_ref_index] = 1; | |
| 8597 | continue; | |
| 8598 | } | |
| 8599 | ||
| 8600 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8601 | continue; | |
| 8602 | ||
| 8603 | tls_set = 0; | |
| 8604 | tls_clear = 0; | |
| 8605 | expecting_tls_get_addr = 2; | |
| 8606 | break; | |
| 8607 | ||
| 8608 | case R_PPC64_TPREL64: | |
| 8609 | if (pass == 0 | |
| 8610 | || sec != toc | |
| 8611 | || toc_ref == NULL | |
| 663a1470 | 8612 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8613 | continue; |
| 8614 | if (ok_tprel) | |
| 8615 | { | |
| 8616 | /* IE -> LE */ | |
| 8617 | tls_set = TLS_EXPLICIT; | |
| 8618 | tls_clear = TLS_TPREL; | |
| 8619 | break; | |
| 8620 | } | |
| 8621 | continue; | |
| 8622 | ||
| 8623 | case R_PPC64_DTPMOD64: | |
| 8624 | if (pass == 0 | |
| 8625 | || sec != toc | |
| 8626 | || toc_ref == NULL | |
| 663a1470 | 8627 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8628 | continue; |
| 8629 | if (rel + 1 < relend | |
| 8630 | && (rel[1].r_info | |
| 8631 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8632 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8633 | { | |
| 8634 | if (ok_tprel) | |
| 8635 | /* GD -> LE */ | |
| 8636 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8637 | else | |
| 8638 | /* GD -> IE */ | |
| 8639 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8640 | tls_clear = TLS_GD; | |
| 8641 | } | |
| 8642 | else | |
| 8643 | { | |
| 8644 | if (!is_local) | |
| 8645 | continue; | |
| 8646 | ||
| 8647 | /* LD -> LE */ | |
| 8648 | tls_set = TLS_EXPLICIT; | |
| 8649 | tls_clear = TLS_LD; | |
| 8650 | } | |
| 8651 | break; | |
| 8652 | ||
| 8653 | default: | |
| 8654 | continue; | |
| 8655 | } | |
| 8656 | ||
| 8657 | if (pass == 0) | |
| 8658 | { | |
| 727fc41e AM |
8659 | if (!expecting_tls_get_addr |
| 8660 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8661 | continue; |
| 8662 | ||
| 3a71aa26 AM |
8663 | if (rel + 1 < relend |
| 8664 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8665 | htab->tls_get_addr, | |
| 8666 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8667 | { |
| 3a71aa26 | 8668 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8669 | { |
| 3a71aa26 | 8670 | /* Check for toc tls entries. */ |
| f961d9dd | 8671 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8672 | int retval; |
| 8673 | ||
| 8674 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8675 | &locsyms, | |
| 8676 | rel, ibfd); | |
| 8677 | if (retval == 0) | |
| 8678 | goto err_free_rel; | |
| 663a1470 AM |
8679 | if (toc_tls != NULL) |
| 8680 | { | |
| 8681 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8682 | found_tls_get_addr_arg = 1; | |
| 8683 | if (retval > 1) | |
| 8684 | toc_ref[toc_ref_index] = 1; | |
| 8685 | } | |
| 102890f0 | 8686 | } |
| 3a71aa26 | 8687 | continue; |
| 102890f0 AM |
8688 | } |
| 8689 | ||
| 8690 | if (expecting_tls_get_addr != 1) | |
| 8691 | continue; | |
| 8692 | ||
| 8693 | /* Uh oh, we didn't find the expected call. We | |
| 8694 | could just mark this symbol to exclude it | |
| 8695 | from tls optimization but it's safer to skip | |
| 663a1470 | 8696 | the entire optimization. */ |
| 695344c0 | 8697 | /* xgettext:c-format */ |
| 25f53a85 | 8698 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8699 | "TLS optimization disabled\n"), |
| 8700 | ibfd, sec, rel->r_offset); | |
| 8701 | ret = TRUE; | |
| 8702 | goto err_free_rel; | |
| 102890f0 AM |
8703 | } |
| 8704 | ||
| 85f7a9cb | 8705 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8706 | { |
| 8707 | struct plt_entry *ent; | |
| 8708 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8709 | ent != NULL; | |
| 8710 | ent = ent->next) | |
| 8711 | if (ent->addend == 0) | |
| 411e1bfb | 8712 | { |
| 102890f0 | 8713 | if (ent->plt.refcount > 0) |
| 30038c59 | 8714 | { |
| 102890f0 AM |
8715 | ent->plt.refcount -= 1; |
| 8716 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8717 | } |
| 102890f0 | 8718 | break; |
| 411e1bfb | 8719 | } |
| 102890f0 | 8720 | } |
| 411e1bfb | 8721 | |
| 85f7a9cb | 8722 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8723 | { |
| 8724 | struct plt_entry *ent; | |
| 8725 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8726 | ent != NULL; | |
| 8727 | ent = ent->next) | |
| 8728 | if (ent->addend == 0) | |
| 411e1bfb | 8729 | { |
| 102890f0 AM |
8730 | if (ent->plt.refcount > 0) |
| 8731 | ent->plt.refcount -= 1; | |
| 8732 | break; | |
| 411e1bfb | 8733 | } |
| 102890f0 | 8734 | } |
| 411e1bfb | 8735 | |
| 102890f0 | 8736 | if (tls_clear == 0) |
| 30038c59 AM |
8737 | continue; |
| 8738 | ||
| 102890f0 AM |
8739 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8740 | { | |
| 8741 | struct got_entry *ent; | |
| 411e1bfb | 8742 | |
| 102890f0 AM |
8743 | /* Adjust got entry for this reloc. */ |
| 8744 | if (h != NULL) | |
| 8745 | ent = h->got.glist; | |
| 8746 | else | |
| 8747 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8748 | |
| 102890f0 AM |
8749 | for (; ent != NULL; ent = ent->next) |
| 8750 | if (ent->addend == rel->r_addend | |
| 8751 | && ent->owner == ibfd | |
| 8752 | && ent->tls_type == tls_type) | |
| 8753 | break; | |
| 8754 | if (ent == NULL) | |
| 8755 | abort (); | |
| 411e1bfb | 8756 | |
| 102890f0 AM |
8757 | if (tls_set == 0) |
| 8758 | { | |
| 8759 | /* We managed to get rid of a got entry. */ | |
| 8760 | if (ent->got.refcount > 0) | |
| 8761 | ent->got.refcount -= 1; | |
| 8762 | } | |
| 8763 | } | |
| 8764 | else | |
| 8765 | { | |
| 8766 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8767 | we'll lose one or two dyn relocs. */ | |
| 8768 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8769 | NULL, h, sym)) |
| 102890f0 | 8770 | return FALSE; |
| 411e1bfb | 8771 | |
| 102890f0 AM |
8772 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8773 | { | |
| 8774 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8775 | NULL, h, sym)) |
| 102890f0 AM |
8776 | return FALSE; |
| 8777 | } | |
| 8778 | } | |
| 411e1bfb | 8779 | |
| 102890f0 AM |
8780 | *tls_mask |= tls_set; |
| 8781 | *tls_mask &= ~tls_clear; | |
| 8782 | } | |
| 8c1d1bb8 | 8783 | |
| 102890f0 AM |
8784 | if (elf_section_data (sec)->relocs != relstart) |
| 8785 | free (relstart); | |
| 8786 | } | |
| 411e1bfb | 8787 | |
| 663a1470 AM |
8788 | if (locsyms != NULL |
| 8789 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8790 | { | |
| 8791 | if (!info->keep_memory) | |
| 8792 | free (locsyms); | |
| 8793 | else | |
| 8794 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8795 | } | |
| 8796 | } | |
| 411e1bfb | 8797 | |
| 663a1470 AM |
8798 | if (toc_ref != NULL) |
| 8799 | free (toc_ref); | |
| 9a23f96e | 8800 | htab->do_tls_opt = 1; |
| b34976b6 | 8801 | return TRUE; |
| 1e2f5b6e | 8802 | } |
| b34976b6 | 8803 | |
| c5614fa4 AM |
8804 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8805 | the values of any global symbols in a toc section that has been | |
| 8806 | edited. Globals in toc sections should be a rarity, so this function | |
| 8807 | sets a flag if any are found in toc sections other than the one just | |
| de194d85 | 8808 | edited, so that further hash table traversals can be avoided. */ |
| c5614fa4 AM |
8809 | |
| 8810 | struct adjust_toc_info | |
| 8811 | { | |
| 8812 | asection *toc; | |
| 8813 | unsigned long *skip; | |
| 8814 | bfd_boolean global_toc_syms; | |
| 8815 | }; | |
| 8816 | ||
| ba761f19 AM |
8817 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8818 | ||
| c5614fa4 AM |
8819 | static bfd_boolean |
| 8820 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8821 | { | |
| 8822 | struct ppc_link_hash_entry *eh; | |
| 8823 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8824 | unsigned long i; |
| c5614fa4 | 8825 | |
| c5614fa4 AM |
8826 | if (h->root.type != bfd_link_hash_defined |
| 8827 | && h->root.type != bfd_link_hash_defweak) | |
| 8828 | return TRUE; | |
| 8829 | ||
| 8830 | eh = (struct ppc_link_hash_entry *) h; | |
| 8831 | if (eh->adjust_done) | |
| 8832 | return TRUE; | |
| 8833 | ||
| 8834 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8835 | { | |
| 854b41e7 AM |
8836 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8837 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8838 | else |
| 854b41e7 AM |
8839 | i = eh->elf.root.u.def.value >> 3; |
| 8840 | ||
| ba761f19 | 8841 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 | 8842 | { |
| 4eca0228 | 8843 | _bfd_error_handler |
| 854b41e7 AM |
8844 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8845 | do | |
| 8846 | ++i; | |
| ba761f19 | 8847 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8848 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8849 | } |
| 854b41e7 AM |
8850 | |
| 8851 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8852 | eh->adjust_done = 1; |
| 8853 | } | |
| 8854 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8855 | toc_inf->global_toc_syms = TRUE; | |
| 8856 | ||
| 8857 | return TRUE; | |
| 8858 | } | |
| 8859 | ||
| 39eeab25 AM |
8860 | /* Return TRUE iff INSN with a relocation of R_TYPE is one we expect |
| 8861 | on a _LO variety toc/got reloc. */ | |
| 560c8763 AM |
8862 | |
| 8863 | static bfd_boolean | |
| 39eeab25 | 8864 | ok_lo_toc_insn (unsigned int insn, enum elf_ppc64_reloc_type r_type) |
| 560c8763 | 8865 | { |
| 39eeab25 AM |
8866 | return ((insn & (0x3f << 26)) == 12u << 26 /* addic */ |
| 8867 | || (insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 560c8763 AM |
8868 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ |
| 8869 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8870 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8871 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8872 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8873 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8874 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8875 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8876 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8877 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8878 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8879 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8880 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 39eeab25 AM |
8881 | || (insn & (0x3f << 26)) == 56u << 26 /* lq,lfq */ |
| 8882 | || ((insn & (0x3f << 26)) == 57u << 26 /* lxsd,lxssp,lfdp */ | |
| 8883 | /* Exclude lfqu by testing reloc. If relocs are ever | |
| 8884 | defined for the reduced D field in psq_lu then those | |
| 8885 | will need testing too. */ | |
| 8886 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8887 | || ((insn & (0x3f << 26)) == 58u << 26 /* ld,lwa */ | |
| 8888 | && (insn & 1) == 0) | |
| 8889 | || (insn & (0x3f << 26)) == 60u << 26 /* stfq */ | |
| 8890 | || ((insn & (0x3f << 26)) == 61u << 26 /* lxv,stx{v,sd,ssp},stfdp */ | |
| 8891 | /* Exclude stfqu. psq_stu as above for psq_lu. */ | |
| 8892 | && r_type != R_PPC64_TOC16_LO && r_type != R_PPC64_GOT16_LO) | |
| 8893 | || ((insn & (0x3f << 26)) == 62u << 26 /* std,stq */ | |
| 8894 | && (insn & 1) == 0)); | |
| 560c8763 AM |
8895 | } |
| 8896 | ||
| c5614fa4 AM |
8897 | /* Examine all relocs referencing .toc sections in order to remove |
| 8898 | unused .toc entries. */ | |
| 8899 | ||
| 8900 | bfd_boolean | |
| 33c0ec9d | 8901 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8902 | { |
| 8903 | bfd *ibfd; | |
| 8904 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8905 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8906 | |
| 67f0cbdb | 8907 | htab->do_toc_opt = 1; |
| c5614fa4 | 8908 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8909 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8910 | { |
| 8911 | asection *toc, *sec; | |
| 8912 | Elf_Internal_Shdr *symtab_hdr; | |
| 8913 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8914 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8915 | unsigned long *skip, *drop; |
| 8916 | unsigned char *used; | |
| 8917 | unsigned char *keep, last, some_unused; | |
| 8918 | ||
| 854b41e7 AM |
8919 | if (!is_ppc64_elf (ibfd)) |
| 8920 | continue; | |
| 8921 | ||
| c5614fa4 AM |
8922 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8923 | if (toc == NULL | |
| 92b7a70f | 8924 | || toc->size == 0 |
| dbaa2011 AM |
8925 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8926 | || discarded_section (toc)) | |
| c5614fa4 AM |
8927 | continue; |
| 8928 | ||
| 425b145b | 8929 | toc_relocs = NULL; |
| c5614fa4 | 8930 | local_syms = NULL; |
| 0ffa91dd | 8931 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8932 | |
| 8933 | /* Look at sections dropped from the final link. */ | |
| 8934 | skip = NULL; | |
| 8935 | relstart = NULL; | |
| 8936 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8937 | { | |
| 8938 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8939 | || !discarded_section (sec) |
| c5614fa4 AM |
8940 | || get_opd_info (sec) |
| 8941 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8942 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8943 | continue; | |
| 8944 | ||
| 8945 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8946 | if (relstart == NULL) | |
| 8947 | goto error_ret; | |
| 8948 | ||
| 8949 | /* Run through the relocs to see which toc entries might be | |
| 8950 | unused. */ | |
| 8951 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8952 | { | |
| 8953 | enum elf_ppc64_reloc_type r_type; | |
| 8954 | unsigned long r_symndx; | |
| 8955 | asection *sym_sec; | |
| 8956 | struct elf_link_hash_entry *h; | |
| 8957 | Elf_Internal_Sym *sym; | |
| 8958 | bfd_vma val; | |
| 8959 | ||
| 8960 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8961 | switch (r_type) | |
| 8962 | { | |
| 8963 | default: | |
| 8964 | continue; | |
| 8965 | ||
| 8966 | case R_PPC64_TOC16: | |
| 8967 | case R_PPC64_TOC16_LO: | |
| 8968 | case R_PPC64_TOC16_HI: | |
| 8969 | case R_PPC64_TOC16_HA: | |
| 8970 | case R_PPC64_TOC16_DS: | |
| 8971 | case R_PPC64_TOC16_LO_DS: | |
| 8972 | break; | |
| 8973 | } | |
| 8974 | ||
| 8975 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8976 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8977 | r_symndx, ibfd)) | |
| 8978 | goto error_ret; | |
| 8979 | ||
| 8980 | if (sym_sec != toc) | |
| 8981 | continue; | |
| 8982 | ||
| 8983 | if (h != NULL) | |
| 8984 | val = h->root.u.def.value; | |
| 8985 | else | |
| 8986 | val = sym->st_value; | |
| 8987 | val += rel->r_addend; | |
| 8988 | ||
| 8989 | if (val >= toc->size) | |
| 8990 | continue; | |
| 8991 | ||
| 8992 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8993 | If not, don't mark as unused. */ | |
| 8994 | if (val & 7) | |
| 8995 | continue; | |
| 8996 | ||
| 8997 | if (skip == NULL) | |
| 8998 | { | |
| 854b41e7 | 8999 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
9000 | if (skip == NULL) |
| 9001 | goto error_ret; | |
| 9002 | } | |
| 9003 | ||
| ba761f19 | 9004 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
9005 | } |
| 9006 | ||
| 9007 | if (elf_section_data (sec)->relocs != relstart) | |
| 9008 | free (relstart); | |
| 9009 | } | |
| 9010 | ||
| ba761f19 AM |
9011 | /* For largetoc loads of address constants, we can convert |
| 9012 | . addis rx,2,addr@got@ha | |
| 9013 | . ld ry,addr@got@l(rx) | |
| 9014 | to | |
| 9015 | . addis rx,2,addr@toc@ha | |
| 9016 | . addi ry,rx,addr@toc@l | |
| 9017 | when addr is within 2G of the toc pointer. This then means | |
| 9018 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 9019 | |
| ba761f19 AM |
9020 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 9021 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 9022 | && toc->reloc_count != 0) | |
| 9023 | { | |
| 9024 | /* Read toc relocs. */ | |
| 425b145b AM |
9025 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 9026 | info->keep_memory); | |
| 9027 | if (toc_relocs == NULL) | |
| ba761f19 AM |
9028 | goto error_ret; |
| 9029 | ||
| 425b145b | 9030 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
9031 | { |
| 9032 | enum elf_ppc64_reloc_type r_type; | |
| 9033 | unsigned long r_symndx; | |
| 9034 | asection *sym_sec; | |
| 9035 | struct elf_link_hash_entry *h; | |
| 9036 | Elf_Internal_Sym *sym; | |
| 9037 | bfd_vma val, addr; | |
| 9038 | ||
| 9039 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9040 | if (r_type != R_PPC64_ADDR64) | |
| 9041 | continue; | |
| 9042 | ||
| 9043 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9044 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9045 | r_symndx, ibfd)) | |
| 9046 | goto error_ret; | |
| 9047 | ||
| 425b145b | 9048 | if (sym_sec == NULL |
| c27b8c2a | 9049 | || sym_sec->output_section == NULL |
| dbaa2011 | 9050 | || discarded_section (sym_sec)) |
| 425b145b AM |
9051 | continue; |
| 9052 | ||
| afe397ea | 9053 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
9054 | continue; |
| 9055 | ||
| 9056 | if (h != NULL) | |
| bddc25c9 AM |
9057 | { |
| 9058 | if (h->type == STT_GNU_IFUNC) | |
| 9059 | continue; | |
| 9060 | val = h->root.u.def.value; | |
| 9061 | } | |
| ba761f19 | 9062 | else |
| bddc25c9 AM |
9063 | { |
| 9064 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 9065 | continue; | |
| 9066 | val = sym->st_value; | |
| 9067 | } | |
| ba761f19 AM |
9068 | val += rel->r_addend; |
| 9069 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 9070 | ||
| 9071 | /* We don't yet know the exact toc pointer value, but we | |
| 9072 | know it will be somewhere in the toc section. Don't | |
| 9073 | optimize if the difference from any possible toc | |
| 9074 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 9075 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 9076 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9077 | continue; | |
| 9078 | ||
| 9079 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9080 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9081 | continue; | |
| 9082 | ||
| 9083 | if (skip == NULL) | |
| 9084 | { | |
| 9085 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9086 | if (skip == NULL) | |
| 9087 | goto error_ret; | |
| 9088 | } | |
| 9089 | ||
| 9090 | skip[rel->r_offset >> 3] | |
| 425b145b | 9091 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9092 | } |
| ba761f19 AM |
9093 | } |
| 9094 | ||
| c5614fa4 AM |
9095 | if (skip == NULL) |
| 9096 | continue; | |
| 9097 | ||
| 9098 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9099 | if (used == NULL) | |
| 9100 | { | |
| 9101 | error_ret: | |
| 9102 | if (local_syms != NULL | |
| 9103 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9104 | free (local_syms); | |
| 9105 | if (sec != NULL | |
| 9106 | && relstart != NULL | |
| 9107 | && elf_section_data (sec)->relocs != relstart) | |
| 9108 | free (relstart); | |
| 425b145b AM |
9109 | if (toc_relocs != NULL |
| 9110 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9111 | free (toc_relocs); | |
| c5614fa4 AM |
9112 | if (skip != NULL) |
| 9113 | free (skip); | |
| 9114 | return FALSE; | |
| 9115 | } | |
| 9116 | ||
| 30038c59 AM |
9117 | /* Now check all kept sections that might reference the toc. |
| 9118 | Check the toc itself last. */ | |
| 9119 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9120 | : ibfd->sections); | |
| c5614fa4 | 9121 | sec != NULL; |
| c5614fa4 | 9122 | sec = (sec == toc ? NULL |
| c5614fa4 | 9123 | : sec->next == NULL ? toc |
| 30038c59 | 9124 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9125 | : sec->next)) |
| 9126 | { | |
| 9127 | int repeat; | |
| 9128 | ||
| 9129 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9130 | || discarded_section (sec) |
| c5614fa4 AM |
9131 | || get_opd_info (sec) |
| 9132 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9133 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9134 | continue; | |
| 9135 | ||
| 854b41e7 AM |
9136 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9137 | info->keep_memory); | |
| c5614fa4 | 9138 | if (relstart == NULL) |
| 2915c55b JK |
9139 | { |
| 9140 | free (used); | |
| 9141 | goto error_ret; | |
| 9142 | } | |
| c5614fa4 AM |
9143 | |
| 9144 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9145 | do |
| d4f1ee75 AM |
9146 | { |
| 9147 | repeat = 0; | |
| 9148 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9149 | { | |
| 9150 | enum elf_ppc64_reloc_type r_type; | |
| 9151 | unsigned long r_symndx; | |
| 9152 | asection *sym_sec; | |
| 9153 | struct elf_link_hash_entry *h; | |
| 9154 | Elf_Internal_Sym *sym; | |
| 9155 | bfd_vma val; | |
| 9156 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9157 | |
| d4f1ee75 AM |
9158 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9159 | switch (r_type) | |
| 9160 | { | |
| 9161 | default: | |
| 9162 | insn_check = no_check; | |
| 9163 | break; | |
| 98528052 | 9164 | |
| d4f1ee75 AM |
9165 | case R_PPC64_GOT_TLSLD16_HA: |
| 9166 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9167 | case R_PPC64_GOT_TPREL16_HA: | |
| 9168 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9169 | case R_PPC64_GOT16_HA: | |
| 9170 | case R_PPC64_TOC16_HA: | |
| 9171 | insn_check = check_ha; | |
| 9172 | break; | |
| 98528052 | 9173 | |
| d4f1ee75 AM |
9174 | case R_PPC64_GOT_TLSLD16_LO: |
| 9175 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9176 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9177 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9178 | case R_PPC64_GOT16_LO: | |
| 9179 | case R_PPC64_GOT16_LO_DS: | |
| 9180 | case R_PPC64_TOC16_LO: | |
| 9181 | case R_PPC64_TOC16_LO_DS: | |
| 9182 | insn_check = check_lo; | |
| 9183 | break; | |
| 9184 | } | |
| 560c8763 | 9185 | |
| d4f1ee75 AM |
9186 | if (insn_check != no_check) |
| 9187 | { | |
| 9188 | bfd_vma off = rel->r_offset & ~3; | |
| 9189 | unsigned char buf[4]; | |
| 9190 | unsigned int insn; | |
| c5614fa4 | 9191 | |
| d4f1ee75 AM |
9192 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9193 | { | |
| 9194 | free (used); | |
| 9195 | goto error_ret; | |
| 9196 | } | |
| 9197 | insn = bfd_get_32 (ibfd, buf); | |
| 9198 | if (insn_check == check_lo | |
| 39eeab25 | 9199 | ? !ok_lo_toc_insn (insn, r_type) |
| d4f1ee75 AM |
9200 | : ((insn & ((0x3f << 26) | 0x1f << 16)) |
| 9201 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9202 | { | |
| 9203 | char str[12]; | |
| 9204 | ||
| 9205 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9206 | sprintf (str, "%#08x", insn); | |
| 9207 | info->callbacks->einfo | |
| 695344c0 | 9208 | /* xgettext:c-format */ |
| 174d0a74 | 9209 | (_("%H: toc optimization is not supported for" |
| d4f1ee75 AM |
9210 | " %s instruction.\n"), |
| 9211 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9212 | } | |
| 9213 | } | |
| c5614fa4 | 9214 | |
| d4f1ee75 AM |
9215 | switch (r_type) |
| 9216 | { | |
| 9217 | case R_PPC64_TOC16: | |
| 9218 | case R_PPC64_TOC16_LO: | |
| 9219 | case R_PPC64_TOC16_HI: | |
| 9220 | case R_PPC64_TOC16_HA: | |
| 9221 | case R_PPC64_TOC16_DS: | |
| 9222 | case R_PPC64_TOC16_LO_DS: | |
| 9223 | /* In case we're taking addresses of toc entries. */ | |
| 9224 | case R_PPC64_ADDR64: | |
| 9225 | break; | |
| c5614fa4 | 9226 | |
| d4f1ee75 AM |
9227 | default: |
| 9228 | continue; | |
| 9229 | } | |
| c5614fa4 | 9230 | |
| d4f1ee75 AM |
9231 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9232 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9233 | r_symndx, ibfd)) | |
| 9234 | { | |
| 9235 | free (used); | |
| 9236 | goto error_ret; | |
| 9237 | } | |
| c5614fa4 | 9238 | |
| d4f1ee75 AM |
9239 | if (sym_sec != toc) |
| 9240 | continue; | |
| c5614fa4 | 9241 | |
| d4f1ee75 AM |
9242 | if (h != NULL) |
| 9243 | val = h->root.u.def.value; | |
| 9244 | else | |
| 9245 | val = sym->st_value; | |
| 9246 | val += rel->r_addend; | |
| ba761f19 | 9247 | |
| d4f1ee75 AM |
9248 | if (val >= toc->size) |
| 9249 | continue; | |
| ba761f19 | 9250 | |
| d4f1ee75 AM |
9251 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9252 | { | |
| 9253 | bfd_vma off; | |
| 9254 | unsigned char opc; | |
| 9255 | ||
| 9256 | switch (r_type) | |
| 9257 | { | |
| 9258 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9259 | break; |
| ba761f19 | 9260 | |
| d4f1ee75 AM |
9261 | case R_PPC64_TOC16_LO_DS: |
| 9262 | off = rel->r_offset; | |
| 9263 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9264 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9265 | off, 1)) | |
| 9266 | { | |
| 9267 | free (used); | |
| 9268 | goto error_ret; | |
| 9269 | } | |
| 9270 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9271 | break; | |
| 1a0670f3 | 9272 | /* Fall through. */ |
| ba761f19 | 9273 | |
| d4f1ee75 AM |
9274 | default: |
| 9275 | /* Wrong sort of reloc, or not a ld. We may | |
| 9276 | as well clear ref_from_discarded too. */ | |
| 9277 | skip[val >> 3] = 0; | |
| 9278 | } | |
| 9279 | } | |
| 9280 | ||
| 9281 | if (sec != toc) | |
| 9282 | used[val >> 3] = 1; | |
| 9283 | /* For the toc section, we only mark as used if this | |
| 9284 | entry itself isn't unused. */ | |
| 9285 | else if ((used[rel->r_offset >> 3] | |
| 9286 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9287 | && !used[val >> 3]) | |
| 9288 | { | |
| 9289 | /* Do all the relocs again, to catch reference | |
| 9290 | chains. */ | |
| 9291 | repeat = 1; | |
| 9292 | used[val >> 3] = 1; | |
| 9293 | } | |
| 9294 | } | |
| 9295 | } | |
| c5614fa4 | 9296 | while (repeat); |
| 854b41e7 AM |
9297 | |
| 9298 | if (elf_section_data (sec)->relocs != relstart) | |
| 9299 | free (relstart); | |
| c5614fa4 AM |
9300 | } |
| 9301 | ||
| 9302 | /* Merge the used and skip arrays. Assume that TOC | |
| 9303 | doublewords not appearing as either used or unused belong | |
| de194d85 | 9304 | to an entry more than one doubleword in size. */ |
| c5614fa4 AM |
9305 | for (drop = skip, keep = used, last = 0, some_unused = 0; |
| 9306 | drop < skip + (toc->size + 7) / 8; | |
| 9307 | ++drop, ++keep) | |
| 9308 | { | |
| 9309 | if (*keep) | |
| 9310 | { | |
| ba761f19 AM |
9311 | *drop &= ~ref_from_discarded; |
| 9312 | if ((*drop & can_optimize) != 0) | |
| 9313 | some_unused = 1; | |
| c5614fa4 AM |
9314 | last = 0; |
| 9315 | } | |
| b140b010 | 9316 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9317 | { |
| 9318 | some_unused = 1; | |
| ba761f19 | 9319 | last = ref_from_discarded; |
| c5614fa4 AM |
9320 | } |
| 9321 | else | |
| 9322 | *drop = last; | |
| 9323 | } | |
| 9324 | ||
| 9325 | free (used); | |
| 9326 | ||
| 9327 | if (some_unused) | |
| 9328 | { | |
| 9329 | bfd_byte *contents, *src; | |
| 9330 | unsigned long off; | |
| d62b3684 | 9331 | Elf_Internal_Sym *sym; |
| ba761f19 | 9332 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9333 | |
| 9334 | /* Shuffle the toc contents, and at the same time convert the | |
| 9335 | skip array from booleans into offsets. */ | |
| 9336 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9337 | goto error_ret; | |
| 9338 | ||
| 9339 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9340 | ||
| 9341 | for (src = contents, off = 0, drop = skip; | |
| 9342 | src < contents + toc->size; | |
| 9343 | src += 8, ++drop) | |
| 9344 | { | |
| ba761f19 AM |
9345 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9346 | off += 8; | |
| c5614fa4 AM |
9347 | else if (off != 0) |
| 9348 | { | |
| 9349 | *drop = off; | |
| 9350 | memcpy (src - off, src, 8); | |
| 9351 | } | |
| 9352 | } | |
| 854b41e7 | 9353 | *drop = off; |
| c5614fa4 AM |
9354 | toc->rawsize = toc->size; |
| 9355 | toc->size = src - contents - off; | |
| 9356 | ||
| ba761f19 AM |
9357 | /* Adjust addends for relocs against the toc section sym, |
| 9358 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9359 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9360 | { | |
| 9361 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9362 | || discarded_section (sec)) |
| c5614fa4 AM |
9363 | continue; |
| 9364 | ||
| 9365 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9366 | info->keep_memory); |
| c5614fa4 AM |
9367 | if (relstart == NULL) |
| 9368 | goto error_ret; | |
| 9369 | ||
| 9370 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9371 | { | |
| 9372 | enum elf_ppc64_reloc_type r_type; | |
| 9373 | unsigned long r_symndx; | |
| 9374 | asection *sym_sec; | |
| 9375 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9376 | bfd_vma val; |
| c5614fa4 AM |
9377 | |
| 9378 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9379 | switch (r_type) | |
| 9380 | { | |
| 9381 | default: | |
| 9382 | continue; | |
| 9383 | ||
| 9384 | case R_PPC64_TOC16: | |
| 9385 | case R_PPC64_TOC16_LO: | |
| 9386 | case R_PPC64_TOC16_HI: | |
| 9387 | case R_PPC64_TOC16_HA: | |
| 9388 | case R_PPC64_TOC16_DS: | |
| 9389 | case R_PPC64_TOC16_LO_DS: | |
| 9390 | case R_PPC64_ADDR64: | |
| 9391 | break; | |
| 9392 | } | |
| 9393 | ||
| 9394 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9395 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9396 | r_symndx, ibfd)) | |
| 9397 | goto error_ret; | |
| 9398 | ||
| ba761f19 | 9399 | if (sym_sec != toc) |
| c5614fa4 AM |
9400 | continue; |
| 9401 | ||
| ba761f19 AM |
9402 | if (h != NULL) |
| 9403 | val = h->root.u.def.value; | |
| 9404 | else | |
| 9405 | { | |
| 9406 | val = sym->st_value; | |
| 9407 | if (val != 0) | |
| 9408 | local_toc_syms = TRUE; | |
| 9409 | } | |
| 9410 | ||
| 9411 | val += rel->r_addend; | |
| 854b41e7 AM |
9412 | |
| 9413 | if (val > toc->rawsize) | |
| 9414 | val = toc->rawsize; | |
| ba761f19 AM |
9415 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9416 | continue; | |
| 9417 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9418 | { | |
| 9419 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9420 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9421 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9422 | ||
| 9423 | switch (r_type) | |
| 9424 | { | |
| 9425 | case R_PPC64_TOC16_HA: | |
| 9426 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9427 | break; | |
| 9428 | ||
| 9429 | case R_PPC64_TOC16_LO_DS: | |
| 9430 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9431 | break; | |
| 9432 | ||
| 9433 | default: | |
| 28942f62 AM |
9434 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9435 | ppc_howto_init (); | |
| b140b010 | 9436 | info->callbacks->einfo |
| 695344c0 | 9437 | /* xgettext:c-format */ |
| 174d0a74 | 9438 | (_("%H: %s references " |
| b140b010 AM |
9439 | "optimized away TOC entry\n"), |
| 9440 | ibfd, sec, rel->r_offset, | |
| 9441 | ppc64_elf_howto_table[r_type]->name); | |
| 9442 | bfd_set_error (bfd_error_bad_value); | |
| 9443 | goto error_ret; | |
| ba761f19 AM |
9444 | } |
| 9445 | rel->r_addend = tocrel->r_addend; | |
| 9446 | elf_section_data (sec)->relocs = relstart; | |
| 9447 | continue; | |
| 9448 | } | |
| 9449 | ||
| 9450 | if (h != NULL || sym->st_value != 0) | |
| 9451 | continue; | |
| 854b41e7 AM |
9452 | |
| 9453 | rel->r_addend -= skip[val >> 3]; | |
| 9454 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9455 | } |
| 854b41e7 AM |
9456 | |
| 9457 | if (elf_section_data (sec)->relocs != relstart) | |
| 9458 | free (relstart); | |
| c5614fa4 AM |
9459 | } |
| 9460 | ||
| 9461 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9462 | but handle them anyway. */ | |
| df22d223 AM |
9463 | if (local_syms != NULL) |
| 9464 | for (sym = local_syms; | |
| 9465 | sym < local_syms + symtab_hdr->sh_info; | |
| 9466 | ++sym) | |
| 9467 | if (sym->st_value != 0 | |
| 9468 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9469 | { | |
| 9470 | unsigned long i; | |
| 854b41e7 | 9471 | |
| df22d223 AM |
9472 | if (sym->st_value > toc->rawsize) |
| 9473 | i = toc->rawsize >> 3; | |
| 9474 | else | |
| 9475 | i = sym->st_value >> 3; | |
| 854b41e7 | 9476 | |
| df22d223 AM |
9477 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9478 | { | |
| 9479 | if (local_toc_syms) | |
| 4eca0228 | 9480 | _bfd_error_handler |
| df22d223 AM |
9481 | (_("%s defined on removed toc entry"), |
| 9482 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9483 | do | |
| 9484 | ++i; | |
| 9485 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9486 | sym->st_value = (bfd_vma) i << 3; | |
| 9487 | } | |
| d62b3684 | 9488 | |
| df22d223 AM |
9489 | sym->st_value -= skip[i]; |
| 9490 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9491 | } | |
| c5614fa4 | 9492 | |
| 854b41e7 | 9493 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9494 | if (toc_inf.global_toc_syms) |
| 9495 | { | |
| 9496 | toc_inf.toc = toc; | |
| 9497 | toc_inf.skip = skip; | |
| 9498 | toc_inf.global_toc_syms = FALSE; | |
| 9499 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9500 | &toc_inf); | |
| 9501 | } | |
| 854b41e7 AM |
9502 | |
| 9503 | if (toc->reloc_count != 0) | |
| 9504 | { | |
| d4730f92 | 9505 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9506 | Elf_Internal_Rela *wrel; |
| 9507 | bfd_size_type sz; | |
| 9508 | ||
| 854b41e7 | 9509 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9510 | if (toc_relocs == NULL) |
| 9511 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9512 | info->keep_memory); | |
| 9513 | if (toc_relocs == NULL) | |
| 9514 | goto error_ret; | |
| 9515 | ||
| 425b145b AM |
9516 | wrel = toc_relocs; |
| 9517 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9518 | if ((skip[rel->r_offset >> 3] |
| 9519 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9520 | { |
| 9521 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9522 | wrel->r_info = rel->r_info; | |
| 9523 | wrel->r_addend = rel->r_addend; | |
| 9524 | ++wrel; | |
| 9525 | } | |
| 9526 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9527 | &local_syms, NULL, NULL)) | |
| 9528 | goto error_ret; | |
| 9529 | ||
| 425b145b AM |
9530 | elf_section_data (toc)->relocs = toc_relocs; |
| 9531 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9532 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9533 | sz = rel_hdr->sh_entsize; | |
| 9534 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9535 | } |
| c5614fa4 | 9536 | } |
| 28be611c AM |
9537 | else if (toc_relocs != NULL |
| 9538 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9539 | free (toc_relocs); |
| c5614fa4 AM |
9540 | |
| 9541 | if (local_syms != NULL | |
| 9542 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9543 | { | |
| 9544 | if (!info->keep_memory) | |
| 9545 | free (local_syms); | |
| 9546 | else | |
| 9547 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9548 | } | |
| 9549 | free (skip); | |
| 9550 | } | |
| 9551 | ||
| 9552 | return TRUE; | |
| 9553 | } | |
| 9554 | ||
| 1bbe0902 AM |
9555 | /* Return true iff input section I references the TOC using |
| 9556 | instructions limited to +/-32k offsets. */ | |
| 9557 | ||
| 9558 | bfd_boolean | |
| 9559 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9560 | { | |
| 9561 | return (is_ppc64_elf (i->owner) | |
| 9562 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9563 | } | |
| 9564 | ||
| 927be08e AM |
9565 | /* Allocate space for one GOT entry. */ |
| 9566 | ||
| 9567 | static void | |
| 9568 | allocate_got (struct elf_link_hash_entry *h, | |
| 9569 | struct bfd_link_info *info, | |
| 9570 | struct got_entry *gent) | |
| 9571 | { | |
| 9572 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
9573 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; |
| 9574 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9575 | ? 16 : 8); | |
| 9576 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9577 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9578 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9579 | ||
| 9580 | gent->got.offset = got->size; | |
| 9581 | got->size += entsize; | |
| 9582 | ||
| 19e08130 | 9583 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9584 | { |
| 33e44f2e | 9585 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9586 | htab->got_reli_size += rentsize; |
| 927be08e | 9587 | } |
| 0e1862bb | 9588 | else if ((bfd_link_pic (info) |
| f0158f44 AM |
9589 | || (htab->elf.dynamic_sections_created |
| 9590 | && h->dynindx != -1 | |
| 9591 | && !SYMBOL_REFERENCES_LOCAL (info, h))) | |
| 21d68fcd | 9592 | && !UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 927be08e | 9593 | { |
| 19e08130 | 9594 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9595 | relgot->size += rentsize; |
| 927be08e AM |
9596 | } |
| 9597 | } | |
| 9598 | ||
| 7865406b AM |
9599 | /* This function merges got entries in the same toc group. */ |
| 9600 | ||
| 9601 | static void | |
| 9602 | merge_got_entries (struct got_entry **pent) | |
| 9603 | { | |
| 9604 | struct got_entry *ent, *ent2; | |
| 9605 | ||
| 9606 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9607 | if (!ent->is_indirect) | |
| 9608 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9609 | if (!ent2->is_indirect | |
| 9610 | && ent2->addend == ent->addend | |
| 9611 | && ent2->tls_type == ent->tls_type | |
| 9612 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9613 | { | |
| 9614 | ent2->is_indirect = TRUE; | |
| 9615 | ent2->got.ent = ent; | |
| 9616 | } | |
| 9617 | } | |
| 9618 | ||
| 46434633 | 9619 | /* If H is undefined, make it dynamic if that makes sense. */ |
| f0158f44 AM |
9620 | |
| 9621 | static bfd_boolean | |
| 46434633 AM |
9622 | ensure_undef_dynamic (struct bfd_link_info *info, |
| 9623 | struct elf_link_hash_entry *h) | |
| f0158f44 AM |
9624 | { |
| 9625 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 9626 | ||
| 9627 | if (htab->dynamic_sections_created | |
| 46434633 AM |
9628 | && ((info->dynamic_undefined_weak != 0 |
| 9629 | && h->root.type == bfd_link_hash_undefweak) | |
| 9630 | || h->root.type == bfd_link_hash_undefined) | |
| f0158f44 AM |
9631 | && h->dynindx == -1 |
| 9632 | && !h->forced_local | |
| 9633 | && ELF_ST_VISIBILITY (h->other) == STV_DEFAULT) | |
| 9634 | return bfd_elf_link_record_dynamic_symbol (info, h); | |
| 9635 | return TRUE; | |
| 9636 | } | |
| 9637 | ||
| 65f38f15 AM |
9638 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9639 | dynamic relocs. */ | |
| 5bd4f169 | 9640 | |
| b34976b6 | 9641 | static bfd_boolean |
| 4ce794b7 | 9642 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9643 | { |
| 65f38f15 AM |
9644 | struct bfd_link_info *info; |
| 9645 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9646 | asection *s; |
| 65f38f15 | 9647 | struct ppc_link_hash_entry *eh; |
| 0b8bcf0d | 9648 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9649 | |
| e92d460e | 9650 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9651 | return TRUE; |
| 5bd4f169 | 9652 | |
| 65f38f15 AM |
9653 | info = (struct bfd_link_info *) inf; |
| 9654 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9655 | if (htab == NULL) |
| 9656 | return FALSE; | |
| 5bd4f169 | 9657 | |
| 951fd09b AM |
9658 | eh = (struct ppc_link_hash_entry *) h; |
| 9659 | /* Run through the TLS GD got entries first if we're changing them | |
| 9660 | to TPREL. */ | |
| e7b938ca | 9661 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9662 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9663 | if (gent->got.refcount > 0 | |
| 9664 | && (gent->tls_type & TLS_GD) != 0) | |
| 9665 | { | |
| 9666 | /* This was a GD entry that has been converted to TPREL. If | |
| 9667 | there happens to be a TPREL entry we can use that one. */ | |
| 9668 | struct got_entry *ent; | |
| 9669 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9670 | if (ent->got.refcount > 0 | |
| 9671 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9672 | && ent->addend == gent->addend |
| 9673 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9674 | { |
| 9675 | gent->got.refcount = 0; | |
| 9676 | break; | |
| 9677 | } | |
| 9678 | ||
| 9679 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9680 | if (gent->got.refcount != 0) | |
| 9681 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9682 | } | |
| 9683 | ||
| 7865406b AM |
9684 | /* Remove any list entry that won't generate a word in the GOT before |
| 9685 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9686 | entries. */ | |
| 0b8bcf0d AM |
9687 | pgent = &h->got.glist; |
| 9688 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9689 | if (gent->got.refcount > 0) |
| 7865406b AM |
9690 | { |
| 9691 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9692 | && !h->def_dynamic) | |
| 9693 | { | |
| 9694 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9695 | *pgent = gent->next; | |
| 9696 | } | |
| 9697 | else | |
| 9698 | pgent = &gent->next; | |
| 9699 | } | |
| 9700 | else | |
| 9701 | *pgent = gent->next; | |
| 9702 | ||
| 9703 | if (!htab->do_multi_toc) | |
| 9704 | merge_got_entries (&h->got.glist); | |
| 9705 | ||
| 9706 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9707 | if (!gent->is_indirect) | |
| 411e1bfb | 9708 | { |
| 46434633 AM |
9709 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9710 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9711 | return FALSE; |
| 65f38f15 | 9712 | |
| 0c8d6e5c | 9713 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9714 | abort (); |
| 0ffa91dd | 9715 | |
| 927be08e | 9716 | allocate_got (h, info, gent); |
| 411e1bfb | 9717 | } |
| 65f38f15 | 9718 | |
| 954b63d4 AM |
9719 | /* If no dynamic sections we can't have dynamic relocs, except for |
| 9720 | IFUNCs which are handled even in static executables. */ | |
| 8a2058b5 AM |
9721 | if (!htab->elf.dynamic_sections_created |
| 9722 | && h->type != STT_GNU_IFUNC) | |
| 9723 | eh->dyn_relocs = NULL; | |
| 9724 | ||
| 954b63d4 AM |
9725 | /* Also discard relocs on undefined weak syms with non-default |
| 9726 | visibility, or when dynamic_undefined_weak says so. */ | |
| 21d68fcd | 9727 | else if (UNDEFWEAK_NO_DYNAMIC_RELOC (info, h)) |
| 954b63d4 AM |
9728 | eh->dyn_relocs = NULL; |
| 9729 | ||
| 8a2058b5 | 9730 | if (eh->dyn_relocs != NULL) |
| 65f38f15 | 9731 | { |
| 8a2058b5 AM |
9732 | struct elf_dyn_relocs *p, **pp; |
| 9733 | ||
| 57e7d118 AM |
9734 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9735 | dynamic pc-relative relocs against symbols which turn out to | |
| 9736 | be defined in regular objects. For the normal shared case, | |
| 9737 | discard space for relocs that have become local due to symbol | |
| 9738 | visibility changes. */ | |
| 9739 | ||
| 9740 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9741 | { |
| 57e7d118 AM |
9742 | /* Relocs that use pc_count are those that appear on a call |
| 9743 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9744 | can be generated via assembly. We want calls to | |
| 9745 | protected symbols to resolve directly to the function | |
| 9746 | rather than going via the plt. If people want function | |
| 9747 | pointer comparisons to work as expected then they should | |
| 9748 | avoid writing weird assembly. */ | |
| 9749 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9750 | { | |
| 57e7d118 AM |
9751 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) |
| 9752 | { | |
| 9753 | p->count -= p->pc_count; | |
| 9754 | p->pc_count = 0; | |
| 9755 | if (p->count == 0) | |
| 9756 | *pp = p->next; | |
| 9757 | else | |
| 9758 | pp = &p->next; | |
| 9759 | } | |
| 9760 | } | |
| 65f38f15 | 9761 | |
| 954b63d4 | 9762 | if (eh->dyn_relocs != NULL) |
| 5bd4f169 | 9763 | { |
| 46434633 AM |
9764 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9765 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9766 | return FALSE; |
| 5bd4f169 | 9767 | } |
| 65f38f15 | 9768 | } |
| 57e7d118 | 9769 | else if (h->type == STT_GNU_IFUNC) |
| dfbb6ac9 | 9770 | { |
| 8a2058b5 AM |
9771 | /* A plt entry is always created when making direct calls to |
| 9772 | an ifunc, even when building a static executable, but | |
| 9773 | that doesn't cover all cases. We may have only an ifunc | |
| 9774 | initialised function pointer for a given ifunc symbol. | |
| 9775 | ||
| 9776 | For ELFv2, dynamic relocations are not required when | |
| 9777 | generating a global entry PLT stub. */ | |
| 9778 | if (abiversion (info->output_bfd) >= 2) | |
| 9779 | { | |
| 9780 | if (global_entry_stub (h)) | |
| 9781 | eh->dyn_relocs = NULL; | |
| 9782 | } | |
| 9783 | ||
| 9784 | /* For ELFv1 we have function descriptors. Descriptors need | |
| 9785 | to be treated like PLT entries and thus have dynamic | |
| 9786 | relocations. One exception is when the function | |
| 9787 | descriptor is copied into .dynbss (which should only | |
| 9788 | happen with ancient versions of gcc). */ | |
| 9789 | else if (h->needs_copy) | |
| dfbb6ac9 | 9790 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9791 | } |
| 9792 | else if (ELIMINATE_COPY_RELOCS) | |
| 9793 | { | |
| 8a2058b5 | 9794 | /* For the non-pic case, discard space for relocs against |
| 57e7d118 AM |
9795 | symbols which turn out to need copy relocs or are not |
| 9796 | dynamic. */ | |
| f0158f44 AM |
9797 | if (!h->non_got_ref |
| 9798 | && !h->def_regular) | |
| 9799 | { | |
| 46434633 AM |
9800 | /* Make sure this symbol is output as a dynamic symbol. */ |
| 9801 | if (!ensure_undef_dynamic (info, h)) | |
| f0158f44 | 9802 | return FALSE; |
| dfbb6ac9 | 9803 | |
| f0158f44 AM |
9804 | if (h->dynindx == -1) |
| 9805 | eh->dyn_relocs = NULL; | |
| 9806 | } | |
| 9807 | else | |
| 8a2058b5 | 9808 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9809 | } |
| 9810 | ||
| 9811 | /* Finally, allocate space. */ | |
| 9812 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9813 | { | |
| 9814 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9815 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9816 | sreloc = htab->elf.irelplt; | |
| 9817 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9818 | } |
| 65f38f15 | 9819 | } |
| 57e7d118 AM |
9820 | |
| 9821 | if ((htab->elf.dynamic_sections_created | |
| f0158f44 | 9822 | && h->dynindx != -1) |
| 57e7d118 | 9823 | || h->type == STT_GNU_IFUNC) |
| 65f38f15 | 9824 | { |
| 57e7d118 AM |
9825 | struct plt_entry *pent; |
| 9826 | bfd_boolean doneone = FALSE; | |
| 9827 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9828 | if (pent->plt.refcount > 0) | |
| 9829 | { | |
| 9830 | if (!htab->elf.dynamic_sections_created | |
| 9831 | || h->dynindx == -1) | |
| 9832 | { | |
| 9833 | s = htab->elf.iplt; | |
| 9834 | pent->plt.offset = s->size; | |
| 9835 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9836 | s = htab->elf.irelplt; | |
| 9837 | } | |
| 9838 | else | |
| 9839 | { | |
| 9840 | /* If this is the first .plt entry, make room for the special | |
| 9841 | first entry. */ | |
| 9842 | s = htab->elf.splt; | |
| 9843 | if (s->size == 0) | |
| 9844 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9845 | |
| 57e7d118 | 9846 | pent->plt.offset = s->size; |
| 65f38f15 | 9847 | |
| 57e7d118 AM |
9848 | /* Make room for this entry. */ |
| 9849 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9850 | |
| 57e7d118 AM |
9851 | /* Make room for the .glink code. */ |
| 9852 | s = htab->glink; | |
| 9853 | if (s->size == 0) | |
| 9854 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9855 | if (htab->opd_abi) | |
| 9856 | { | |
| 9857 | /* We need bigger stubs past index 32767. */ | |
| 9858 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9859 | s->size += 4; | |
| 9860 | s->size += 2*4; | |
| 9861 | } | |
| 9862 | else | |
| 9863 | s->size += 4; | |
| 65f38f15 | 9864 | |
| 57e7d118 AM |
9865 | /* We also need to make an entry in the .rela.plt section. */ |
| 9866 | s = htab->elf.srelplt; | |
| 9867 | } | |
| 9868 | s->size += sizeof (Elf64_External_Rela); | |
| 9869 | doneone = TRUE; | |
| 9870 | } | |
| 9871 | else | |
| 9872 | pent->plt.offset = (bfd_vma) -1; | |
| 9873 | if (!doneone) | |
| 9874 | { | |
| 9875 | h->plt.plist = NULL; | |
| 9876 | h->needs_plt = 0; | |
| 9877 | } | |
| 65f38f15 | 9878 | } |
| 57e7d118 | 9879 | else |
| 65f38f15 | 9880 | { |
| 57e7d118 AM |
9881 | h->plt.plist = NULL; |
| 9882 | h->needs_plt = 0; | |
| 65f38f15 AM |
9883 | } |
| 9884 | ||
| b34976b6 | 9885 | return TRUE; |
| 65f38f15 AM |
9886 | } |
| 9887 | ||
| a345bc8d AM |
9888 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9889 | to set up space for global entry stubs. These are put in glink, | |
| 9890 | after the branch table. */ | |
| 65f38f15 | 9891 | |
| b34976b6 | 9892 | static bfd_boolean |
| a345bc8d | 9893 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9894 | { |
| a345bc8d AM |
9895 | struct bfd_link_info *info; |
| 9896 | struct ppc_link_hash_table *htab; | |
| 9897 | struct plt_entry *pent; | |
| 9898 | asection *s; | |
| 65f38f15 | 9899 | |
| a345bc8d AM |
9900 | if (h->root.type == bfd_link_hash_indirect) |
| 9901 | return TRUE; | |
| 65f38f15 | 9902 | |
| a345bc8d AM |
9903 | if (!h->pointer_equality_needed) |
| 9904 | return TRUE; | |
| 65f38f15 | 9905 | |
| a345bc8d AM |
9906 | if (h->def_regular) |
| 9907 | return TRUE; | |
| 65f38f15 | 9908 | |
| a345bc8d AM |
9909 | info = inf; |
| 9910 | htab = ppc_hash_table (info); | |
| 9911 | if (htab == NULL) | |
| 9912 | return FALSE; | |
| 9913 | ||
| 9914 | s = htab->glink; | |
| 9915 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9916 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9917 | && pent->addend == 0) | |
| 9918 | { | |
| afe397ea AM |
9919 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9920 | and we are not generating a shared library or pie, then we | |
| 9921 | need to define the symbol in the executable on a call stub. | |
| 9922 | This is to avoid text relocations. */ | |
| a345bc8d | 9923 | s->size = (s->size + 15) & -16; |
| 8a2058b5 | 9924 | h->root.type = bfd_link_hash_defined; |
| afe397ea AM |
9925 | h->root.u.def.section = s; |
| 9926 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9927 | s->size += 16; |
| 9928 | break; | |
| 9929 | } | |
| 9930 | return TRUE; | |
| 9931 | } | |
| 9932 | ||
| 9933 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9934 | read-only sections. */ | |
| 9935 | ||
| 9936 | static bfd_boolean | |
| 9937 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9938 | { | |
| 9939 | if (h->root.type == bfd_link_hash_indirect) | |
| 9940 | return TRUE; | |
| 9941 | ||
| 9942 | if (readonly_dynrelocs (h)) | |
| 9943 | { | |
| 9944 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9945 | ||
| 9946 | /* Not an error, just cut short the traversal. */ | |
| 9947 | return FALSE; | |
| 65f38f15 | 9948 | } |
| b34976b6 | 9949 | return TRUE; |
| 65f38f15 AM |
9950 | } |
| 9951 | ||
| 9952 | /* Set the sizes of the dynamic sections. */ | |
| 9953 | ||
| b34976b6 | 9954 | static bfd_boolean |
| ee67d69a | 9955 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9956 | struct bfd_link_info *info) |
| 65f38f15 AM |
9957 | { |
| 9958 | struct ppc_link_hash_table *htab; | |
| 9959 | bfd *dynobj; | |
| 9960 | asection *s; | |
| b34976b6 | 9961 | bfd_boolean relocs; |
| 65f38f15 | 9962 | bfd *ibfd; |
| 7865406b | 9963 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9964 | |
| 9965 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9966 | if (htab == NULL) |
| 9967 | return FALSE; | |
| 9968 | ||
| 65f38f15 AM |
9969 | dynobj = htab->elf.dynobj; |
| 9970 | if (dynobj == NULL) | |
| 9971 | abort (); | |
| 9972 | ||
| 9973 | if (htab->elf.dynamic_sections_created) | |
| 9974 | { | |
| 9975 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9976 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9977 | { |
| 3d4d4302 | 9978 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9979 | if (s == NULL) |
| 9980 | abort (); | |
| eea6121a | 9981 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9982 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9983 | } | |
| 9984 | } | |
| 9985 | ||
| 9986 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9987 | relocs. */ | |
| c72f2fb2 | 9988 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9989 | { |
| 411e1bfb AM |
9990 | struct got_entry **lgot_ents; |
| 9991 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9992 | struct plt_entry **local_plt; |
| 9993 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9994 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9995 | bfd_size_type locsymcount; |
| 9996 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9997 | |
| 0c8d6e5c | 9998 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9999 | continue; |
| 10000 | ||
| 10001 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 10002 | { | |
| 19e08130 | 10003 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 10004 | |
| 6edfbbad | 10005 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 10006 | { |
| ec338859 AM |
10007 | if (!bfd_is_abs_section (p->sec) |
| 10008 | && bfd_is_abs_section (p->sec->output_section)) | |
| 10009 | { | |
| 10010 | /* Input section has been discarded, either because | |
| 10011 | it is a copy of a linkonce section or due to | |
| 10012 | linker script /DISCARD/, so we'll be discarding | |
| 10013 | the relocs too. */ | |
| 10014 | } | |
| 248866a8 | 10015 | else if (p->count != 0) |
| ec338859 | 10016 | { |
| 19e08130 AM |
10017 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 10018 | if (p->ifunc) | |
| 33e44f2e | 10019 | srel = htab->elf.irelplt; |
| eea6121a | 10020 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
10021 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 10022 | info->flags |= DF_TEXTREL; | |
| ec338859 | 10023 | } |
| 65f38f15 AM |
10024 | } |
| 10025 | } | |
| 10026 | ||
| 411e1bfb AM |
10027 | lgot_ents = elf_local_got_ents (ibfd); |
| 10028 | if (!lgot_ents) | |
| 65f38f15 AM |
10029 | continue; |
| 10030 | ||
| 0ffa91dd | 10031 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 10032 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 10033 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
10034 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 10035 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 10036 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 10037 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 10038 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 10039 | { |
| 0b8bcf0d | 10040 | struct got_entry **pent, *ent; |
| 411e1bfb | 10041 | |
| 0b8bcf0d AM |
10042 | pent = lgot_ents; |
| 10043 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
10044 | if (ent->got.refcount > 0) |
| 10045 | { | |
| e7b938ca | 10046 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 10047 | { |
| 927be08e | 10048 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 10049 | *pent = ent->next; |
| 411e1bfb AM |
10050 | } |
| 10051 | else | |
| 10052 | { | |
| 19e08130 AM |
10053 | unsigned int ent_size = 8; |
| 10054 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 10055 | ||
| eea6121a | 10056 | ent->got.offset = s->size; |
| e7b938ca | 10057 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 10058 | { |
| 19e08130 AM |
10059 | ent_size *= 2; |
| 10060 | rel_size *= 2; | |
| 10061 | } | |
| 10062 | s->size += ent_size; | |
| 10063 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 10064 | { | |
| 33e44f2e | 10065 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
10066 | htab->got_reli_size += rel_size; |
| 10067 | } | |
| 0e1862bb | 10068 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
10069 | { |
| 10070 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10071 | srel->size += rel_size; | |
| 927be08e | 10072 | } |
| 0b8bcf0d | 10073 | pent = &ent->next; |
| 411e1bfb AM |
10074 | } |
| 10075 | } | |
| 10076 | else | |
| 0b8bcf0d | 10077 | *pent = ent->next; |
| 65f38f15 | 10078 | } |
| e054468f AM |
10079 | |
| 10080 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 10081 | for (; local_plt < end_local_plt; ++local_plt) | |
| 10082 | { | |
| 10083 | struct plt_entry *ent; | |
| 10084 | ||
| 10085 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 10086 | if (ent->plt.refcount > 0) | |
| 10087 | { | |
| 33e44f2e | 10088 | s = htab->elf.iplt; |
| e054468f | 10089 | ent->plt.offset = s->size; |
| b9e5796b | 10090 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 10091 | |
| 33e44f2e | 10092 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
10093 | } |
| 10094 | else | |
| 10095 | ent->plt.offset = (bfd_vma) -1; | |
| 10096 | } | |
| 65f38f15 AM |
10097 | } |
| 10098 | ||
| 10099 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10100 | sym dynamic relocs. */ | |
| 4ce794b7 | 10101 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
10102 | /* Stash the end of glink branch table. */ |
| 10103 | if (htab->glink != NULL) | |
| 10104 | htab->glink->rawsize = htab->glink->size; | |
| 10105 | ||
| 0e1862bb | 10106 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10107 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10108 | |
| 7865406b | 10109 | first_tlsld = NULL; |
| c72f2fb2 | 10110 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10111 | { |
| 7865406b AM |
10112 | struct got_entry *ent; |
| 10113 | ||
| 0c8d6e5c | 10114 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10115 | continue; |
| 10116 | ||
| 7865406b AM |
10117 | ent = ppc64_tlsld_got (ibfd); |
| 10118 | if (ent->got.refcount > 0) | |
| 102890f0 | 10119 | { |
| 7865406b | 10120 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10121 | { |
| 7865406b AM |
10122 | ent->is_indirect = TRUE; |
| 10123 | ent->got.ent = first_tlsld; | |
| 10124 | } | |
| 10125 | else | |
| 10126 | { | |
| 10127 | if (first_tlsld == NULL) | |
| 10128 | first_tlsld = ent; | |
| 10129 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10130 | ent->got.offset = s->size; | |
| 10131 | ent->owner = ibfd; | |
| 10132 | s->size += 16; | |
| 0e1862bb | 10133 | if (bfd_link_pic (info)) |
| 7865406b AM |
10134 | { |
| 10135 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10136 | srel->size += sizeof (Elf64_External_Rela); | |
| 10137 | } | |
| 102890f0 AM |
10138 | } |
| 10139 | } | |
| 10140 | else | |
| 7865406b | 10141 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10142 | } |
| 10143 | ||
| 65f38f15 AM |
10144 | /* We now have determined the sizes of the various dynamic sections. |
| 10145 | Allocate memory for them. */ | |
| b34976b6 | 10146 | relocs = FALSE; |
| 65f38f15 AM |
10147 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10148 | { | |
| 10149 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10150 | continue; | |
| 10151 | ||
| 4ce794b7 | 10152 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10153 | /* These haven't been allocated yet; don't strip. */ |
| 10154 | continue; | |
| 33e44f2e AM |
10155 | else if (s == htab->elf.sgot |
| 10156 | || s == htab->elf.splt | |
| 10157 | || s == htab->elf.iplt | |
| c456f082 | 10158 | || s == htab->glink |
| 5474d94f AM |
10159 | || s == htab->elf.sdynbss |
| 10160 | || s == htab->elf.sdynrelro) | |
| 65f38f15 AM |
10161 | { |
| 10162 | /* Strip this section if we don't need it; see the | |
| 10163 | comment below. */ | |
| 5bd4f169 | 10164 | } |
| 58d180e8 AM |
10165 | else if (s == htab->glink_eh_frame) |
| 10166 | { | |
| 10167 | if (!bfd_is_abs_section (s->output_section)) | |
| 10168 | /* Not sized yet. */ | |
| 10169 | continue; | |
| 10170 | } | |
| 70cc837d | 10171 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10172 | { |
| c456f082 | 10173 | if (s->size != 0) |
| 5bd4f169 | 10174 | { |
| 33e44f2e | 10175 | if (s != htab->elf.srelplt) |
| b34976b6 | 10176 | relocs = TRUE; |
| 5bd4f169 AM |
10177 | |
| 10178 | /* We use the reloc_count field as a counter if we need | |
| 10179 | to copy relocs into the output file. */ | |
| 10180 | s->reloc_count = 0; | |
| 10181 | } | |
| 10182 | } | |
| 65f38f15 | 10183 | else |
| 5bd4f169 AM |
10184 | { |
| 10185 | /* It's not one of our sections, so don't allocate space. */ | |
| 10186 | continue; | |
| 10187 | } | |
| 10188 | ||
| eea6121a | 10189 | if (s->size == 0) |
| 5bd4f169 | 10190 | { |
| c456f082 AM |
10191 | /* If we don't need this section, strip it from the |
| 10192 | output file. This is mostly to handle .rela.bss and | |
| 10193 | .rela.plt. We must create both sections in | |
| 10194 | create_dynamic_sections, because they must be created | |
| 10195 | before the linker maps input sections to output | |
| 10196 | sections. The linker does that before | |
| 10197 | adjust_dynamic_symbol is called, and it is that | |
| 10198 | function which decides whether anything needs to go | |
| 10199 | into these sections. */ | |
| 8423293d | 10200 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10201 | continue; |
| 10202 | } | |
| 10203 | ||
| c456f082 | 10204 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10205 | continue; |
| 10206 | ||
| 65f38f15 AM |
10207 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10208 | here in case unused entries are not reclaimed before the | |
| 10209 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10210 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10211 | sections instead of garbage. | |
| 10212 | We also rely on the section contents being zero when writing | |
| 5474d94f | 10213 | the GOT and .dynrelro. */ |
| eea6121a | 10214 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10215 | if (s->contents == NULL) |
| b34976b6 | 10216 | return FALSE; |
| 5bd4f169 AM |
10217 | } |
| 10218 | ||
| c72f2fb2 | 10219 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10220 | { |
| 0c8d6e5c | 10221 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10222 | continue; |
| 10223 | ||
| e717da7e | 10224 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10225 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10226 | { |
| eea6121a | 10227 | if (s->size == 0) |
| 8423293d | 10228 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10229 | else |
| 10230 | { | |
| eea6121a | 10231 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10232 | if (s->contents == NULL) |
| 10233 | return FALSE; | |
| 10234 | } | |
| 10235 | } | |
| 10236 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10237 | if (s != NULL) | |
| 10238 | { | |
| eea6121a | 10239 | if (s->size == 0) |
| 8423293d | 10240 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10241 | else |
| 10242 | { | |
| eea6121a | 10243 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10244 | if (s->contents == NULL) |
| 10245 | return FALSE; | |
| 10246 | relocs = TRUE; | |
| 10247 | s->reloc_count = 0; | |
| 10248 | } | |
| 10249 | } | |
| 10250 | } | |
| 10251 | ||
| e86ce104 | 10252 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10253 | { |
| e8910a83 AM |
10254 | bfd_boolean tls_opt; |
| 10255 | ||
| 5bd4f169 AM |
10256 | /* Add some entries to the .dynamic section. We fill in the |
| 10257 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10258 | must add the entries now so that we get the correct size for | |
| 10259 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10260 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10261 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10262 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10263 | |
| 0e1862bb | 10264 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10265 | { |
| dc810e39 | 10266 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10267 | return FALSE; |
| 5bd4f169 AM |
10268 | } |
| 10269 | ||
| 33e44f2e | 10270 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10271 | { |
| dc810e39 AM |
10272 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10273 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10274 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10275 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10276 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10277 | return FALSE; |
| 5bd4f169 AM |
10278 | } |
| 10279 | ||
| ee67d69a | 10280 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10281 | { |
| 10282 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10283 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10284 | return FALSE; |
| 19397422 AM |
10285 | } |
| 10286 | ||
| 7c9cf415 | 10287 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10288 | && htab->tls_get_addr_fd != NULL |
| 10289 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10290 | if (tls_opt || !htab->opd_abi) | |
| 10291 | { | |
| 10292 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10293 | return FALSE; | |
| 10294 | } | |
| a7f2871e | 10295 | |
| 5bd4f169 AM |
10296 | if (relocs) |
| 10297 | { | |
| dc810e39 AM |
10298 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10299 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10300 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10301 | return FALSE; |
| 5bd4f169 | 10302 | |
| 65f38f15 AM |
10303 | /* If any dynamic relocs apply to a read-only section, |
| 10304 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10305 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10306 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10307 | |
| 65f38f15 | 10308 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10309 | { |
| 65f38f15 | 10310 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10311 | return FALSE; |
| 5bd4f169 | 10312 | } |
| 5bd4f169 | 10313 | } |
| 5bd4f169 | 10314 | } |
| 65f38f15 | 10315 | #undef add_dynamic_entry |
| 5bd4f169 | 10316 | |
| b34976b6 | 10317 | return TRUE; |
| 5bd4f169 AM |
10318 | } |
| 10319 | ||
| a345bc8d AM |
10320 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10321 | ||
| 10322 | static bfd_boolean | |
| 10323 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10324 | { | |
| 10325 | if (h->plt.plist != NULL | |
| 10326 | && !h->def_regular | |
| 10327 | && !h->pointer_equality_needed) | |
| 10328 | return FALSE; | |
| 10329 | ||
| 10330 | return _bfd_elf_hash_symbol (h); | |
| 10331 | } | |
| 10332 | ||
| 721956f4 | 10333 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10334 | |
| 4ce794b7 AM |
10335 | static inline enum ppc_stub_type |
| 10336 | ppc_type_of_stub (asection *input_sec, | |
| 10337 | const Elf_Internal_Rela *rel, | |
| 10338 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10339 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10340 | bfd_vma destination, |
| 10341 | unsigned long local_off) | |
| 5bd4f169 | 10342 | { |
| 721956f4 AM |
10343 | struct ppc_link_hash_entry *h = *hash; |
| 10344 | bfd_vma location; | |
| 10345 | bfd_vma branch_offset; | |
| 10346 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10347 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10348 | |
| 721956f4 AM |
10349 | if (h != NULL) |
| 10350 | { | |
| e054468f | 10351 | struct plt_entry *ent; |
| 7fe2b9a6 | 10352 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10353 | if (h->oh != NULL |
| 10354 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10355 | { |
| 10356 | fdh = ppc_follow_link (h->oh); | |
| 10357 | *hash = fdh; | |
| 10358 | } | |
| 8387904d | 10359 | |
| e054468f AM |
10360 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10361 | if (ent->addend == rel->r_addend | |
| 10362 | && ent->plt.offset != (bfd_vma) -1) | |
| 10363 | { | |
| e054468f AM |
10364 | *plt_ent = ent; |
| 10365 | return ppc_stub_plt_call; | |
| 10366 | } | |
| 5bd4f169 | 10367 | |
| 7fe2b9a6 AM |
10368 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10369 | either a defined function descriptor or a defined entry symbol | |
| 10370 | in a regular object file, then it is pointless trying to make | |
| 10371 | any other type of stub. */ | |
| 854b41e7 AM |
10372 | if (!is_static_defined (&fdh->elf) |
| 10373 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10374 | return ppc_stub_none; |
| 5d1634d7 | 10375 | } |
| e054468f AM |
10376 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10377 | { | |
| 10378 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10379 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10380 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10381 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10382 | ||
| 10383 | if (local_plt[r_symndx] != NULL) | |
| 10384 | { | |
| 10385 | struct plt_entry *ent; | |
| 10386 | ||
| 10387 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10388 | if (ent->addend == rel->r_addend | |
| 10389 | && ent->plt.offset != (bfd_vma) -1) | |
| 10390 | { | |
| 10391 | *plt_ent = ent; | |
| 10392 | return ppc_stub_plt_call; | |
| 10393 | } | |
| 10394 | } | |
| 10395 | } | |
| 5d1634d7 | 10396 | |
| 721956f4 AM |
10397 | /* Determine where the call point is. */ |
| 10398 | location = (input_sec->output_offset | |
| 10399 | + input_sec->output_section->vma | |
| 10400 | + rel->r_offset); | |
| 5d1634d7 | 10401 | |
| 721956f4 AM |
10402 | branch_offset = destination - location; |
| 10403 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10404 | |
| 721956f4 AM |
10405 | /* Determine if a long branch stub is needed. */ |
| 10406 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10407 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10408 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10409 | |
| 6911b7dc | 10410 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10411 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10412 | is needed later. */ | |
| 10413 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10414 | |
| 721956f4 | 10415 | return ppc_stub_none; |
| 5d1634d7 AM |
10416 | } |
| 10417 | ||
| 794e51c0 AM |
10418 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10419 | to update a plt entry in one thread and have another thread see a | |
| 10420 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10421 | barrier in the call stub. One solution is to make the load of the | |
| 10422 | toc word seem to appear to depend on the load of the function entry | |
| 10423 | word. Another solution is to test for r2 being zero, and branch to | |
| 10424 | the appropriate glink entry if so. | |
| 10425 | ||
| 10426 | . fake dep barrier compare | |
| 71a39c98 AM |
10427 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10428 | . mtctr 12 mtctr 12 | |
| 10429 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10430 | . add 2,2,11 cmpldi 2,0 |
| 10431 | . ld 2,xxx+8(2) bnectr+ | |
| 10432 | . bctr b <glink_entry> | |
| 10433 | ||
| 10434 | The solution involving the compare turns out to be faster, so | |
| 10435 | that's what we use unless the branch won't reach. */ | |
| 10436 | ||
| 10437 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10438 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10439 | |
| 5d1634d7 AM |
10440 | #define PPC_LO(v) ((v) & 0xffff) |
| 10441 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10442 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10443 | ||
| 794e51c0 AM |
10444 | static inline unsigned int |
| 10445 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10446 | struct ppc_stub_hash_entry *stub_entry, | |
| 10447 | bfd_vma off) | |
| 10448 | { | |
| b9e5796b AM |
10449 | unsigned size = 12; |
| 10450 | ||
| 10451 | if (ALWAYS_EMIT_R2SAVE | |
| 10452 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10453 | size += 4; | |
| 10454 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10455 | size += 4; |
| b9e5796b AM |
10456 | if (htab->opd_abi) |
| 10457 | { | |
| 10458 | size += 4; | |
| e7d1c40c | 10459 | if (htab->params->plt_static_chain) |
| b9e5796b | 10460 | size += 4; |
| bd4d2eaa AM |
10461 | if (htab->params->plt_thread_safe |
| 10462 | && htab->elf.dynamic_sections_created | |
| 10463 | && stub_entry->h != NULL | |
| 10464 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10465 | size += 8; |
| e7d1c40c | 10466 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10467 | size += 4; |
| 10468 | } | |
| 794e51c0 AM |
10469 | if (stub_entry->h != NULL |
| 10470 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10471 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10472 | && htab->params->tls_get_addr_opt) |
| f378ab09 AM |
10473 | { |
| 10474 | size += 7 * 4; | |
| 10475 | if (ALWAYS_EMIT_R2SAVE | |
| 10476 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10477 | size += 6 * 4; | |
| 10478 | } | |
| 794e51c0 AM |
10479 | return size; |
| 10480 | } | |
| 10481 | ||
| 2420fff6 AM |
10482 | /* Depending on the sign of plt_stub_align: |
| 10483 | If positive, return the padding to align to a 2**plt_stub_align | |
| 10484 | boundary. | |
| 10485 | If negative, if this stub would cross fewer 2**plt_stub_align | |
| 10486 | boundaries if we align, then return the padding needed to do so. */ | |
| 10487 | ||
| 794e51c0 AM |
10488 | static inline unsigned int |
| 10489 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10490 | struct ppc_stub_hash_entry *stub_entry, | |
| 10491 | bfd_vma plt_off) | |
| 10492 | { | |
| 2420fff6 | 10493 | int stub_align; |
| 794e51c0 | 10494 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10495 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 | 10496 | |
| 2420fff6 AM |
10497 | if (htab->params->plt_stub_align >= 0) |
| 10498 | { | |
| 10499 | stub_align = 1 << htab->params->plt_stub_align; | |
| 10500 | if ((stub_off & (stub_align - 1)) != 0) | |
| 10501 | return stub_align - (stub_off & (stub_align - 1)); | |
| 10502 | return 0; | |
| 10503 | } | |
| 10504 | ||
| 10505 | stub_align = 1 << -htab->params->plt_stub_align; | |
| 794e51c0 | 10506 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) |
| e05fa0ba | 10507 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10508 | return stub_align - (stub_off & (stub_align - 1)); |
| 10509 | return 0; | |
| 10510 | } | |
| 10511 | ||
| 10512 | /* Build a .plt call stub. */ | |
| 10513 | ||
| 10514 | static inline bfd_byte * | |
| 10515 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10516 | struct ppc_stub_hash_entry *stub_entry, | |
| 10517 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10518 | { | |
| e7d1c40c | 10519 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10520 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10521 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10522 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10523 | && htab->elf.dynamic_sections_created | |
| 10524 | && stub_entry->h != NULL | |
| 10525 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10526 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10527 | bfd_vma cmp_branch_off = 0; | |
| 10528 | ||
| 10529 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10530 | && plt_load_toc |
| 794e51c0 | 10531 | && plt_thread_safe |
| bd4d2eaa AM |
10532 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10533 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10534 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10535 | { |
| 10536 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10537 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10538 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10539 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10540 | bfd_vma to, from; | |
| 10541 | ||
| 68d62958 AM |
10542 | if (pltindex > 32768) |
| 10543 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10544 | to = (glinkoff |
| 10545 | + htab->glink->output_offset | |
| 10546 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10547 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10548 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10549 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10550 | + 4 * (PPC_HA (offset) != 0) | |
| 10551 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10552 | != PPC_HA (offset)) | |
| 10553 | + 4 * (plt_static_chain != 0) | |
| 10554 | + 20 | |
| 6f20ed8a AM |
10555 | + stub_entry->group->stub_sec->output_offset |
| 10556 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10557 | cmp_branch_off = to - from; |
| 10558 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10559 | } | |
| 10560 | ||
| ac2df442 AM |
10561 | if (PPC_HA (offset) != 0) |
| 10562 | { | |
| 176a0d42 AM |
10563 | if (r != NULL) |
| 10564 | { | |
| 794e51c0 AM |
10565 | if (ALWAYS_EMIT_R2SAVE |
| 10566 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10567 | r[0].r_offset += 4; | |
| 176a0d42 | 10568 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10569 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10570 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10571 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10572 | if (plt_load_toc) |
| 176a0d42 | 10573 | { |
| b9e5796b | 10574 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10575 | { |
| b9e5796b AM |
10576 | r[2].r_offset = r[1].r_offset + 4; |
| 10577 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10578 | r[2].r_addend = r[0].r_addend; | |
| 10579 | } | |
| 10580 | else | |
| 10581 | { | |
| 10582 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10583 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10584 | r[2].r_addend = r[0].r_addend + 8; | |
| 10585 | if (plt_static_chain) | |
| 10586 | { | |
| 10587 | r[3].r_offset = r[2].r_offset + 4; | |
| 10588 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10589 | r[3].r_addend = r[0].r_addend + 16; | |
| 10590 | } | |
| c7131b65 | 10591 | } |
| 176a0d42 AM |
10592 | } |
| 10593 | } | |
| 794e51c0 AM |
10594 | if (ALWAYS_EMIT_R2SAVE |
| 10595 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10596 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10597 | if (plt_load_toc) |
| 10598 | { | |
| 10599 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10600 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10601 | } | |
| 10602 | else | |
| 10603 | { | |
| 10604 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10605 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10606 | } | |
| b9e5796b AM |
10607 | if (plt_load_toc |
| 10608 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10609 | { |
| 71a39c98 | 10610 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10611 | offset = 0; |
| 10612 | } | |
| 71a39c98 | 10613 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10614 | if (plt_load_toc) |
| 794e51c0 | 10615 | { |
| b9e5796b AM |
10616 | if (use_fake_dep) |
| 10617 | { | |
| 10618 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10619 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10620 | } | |
| 10621 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10622 | if (plt_static_chain) | |
| 10623 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10624 | } |
| ac2df442 AM |
10625 | } |
| 10626 | else | |
| 10627 | { | |
| 176a0d42 AM |
10628 | if (r != NULL) |
| 10629 | { | |
| 794e51c0 AM |
10630 | if (ALWAYS_EMIT_R2SAVE |
| 10631 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10632 | r[0].r_offset += 4; | |
| 176a0d42 | 10633 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10634 | if (plt_load_toc) |
| 176a0d42 | 10635 | { |
| b9e5796b | 10636 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10637 | { |
| b9e5796b AM |
10638 | r[1].r_offset = r[0].r_offset + 4; |
| 10639 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10640 | r[1].r_addend = r[0].r_addend; | |
| 10641 | } | |
| 10642 | else | |
| 10643 | { | |
| 10644 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10645 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10646 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10647 | if (plt_static_chain) | |
| 10648 | { | |
| 10649 | r[2].r_offset = r[1].r_offset + 4; | |
| 10650 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10651 | r[2].r_addend = r[0].r_addend + 8; | |
| 10652 | } | |
| c7131b65 | 10653 | } |
| 176a0d42 AM |
10654 | } |
| 10655 | } | |
| 794e51c0 AM |
10656 | if (ALWAYS_EMIT_R2SAVE |
| 10657 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10658 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10659 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10660 | if (plt_load_toc |
| 10661 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10662 | { |
| 10663 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10664 | offset = 0; | |
| 10665 | } | |
| 71a39c98 | 10666 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10667 | if (plt_load_toc) |
| 794e51c0 | 10668 | { |
| b9e5796b AM |
10669 | if (use_fake_dep) |
| 10670 | { | |
| 10671 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10672 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10673 | } | |
| 10674 | if (plt_static_chain) | |
| 10675 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10676 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10677 | } |
| ac2df442 | 10678 | } |
| b9e5796b | 10679 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10680 | { |
| 10681 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10682 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10683 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10684 | } |
| 10685 | else | |
| 10686 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10687 | return p; |
| 10688 | } | |
| 10689 | ||
| a7f2871e AM |
10690 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10691 | ||
| 10692 | #define LD_R11_0R3 0xe9630000 | |
| 10693 | #define LD_R12_0R3 0xe9830000 | |
| 10694 | #define MR_R0_R3 0x7c601b78 | |
| 10695 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10696 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10697 | #define BEQLR 0x4d820020 | |
| 10698 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10699 | #define STD_R11_0R1 0xf9610000 |
| 10700 | #define BCTRL 0x4e800421 | |
| 10701 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10702 | #define MTLR_R11 0x7d6803a6 |
| 10703 | ||
| 10704 | static inline bfd_byte * | |
| 794e51c0 AM |
10705 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10706 | struct ppc_stub_hash_entry *stub_entry, | |
| 10707 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10708 | { |
| e7d1c40c | 10709 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10710 | |
| a7f2871e AM |
10711 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10712 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10713 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10714 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10715 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10716 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10717 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| f378ab09 AM |
10718 | if (r != NULL) |
| 10719 | r[0].r_offset += 7 * 4; | |
| 10720 | if (!ALWAYS_EMIT_R2SAVE | |
| 10721 | && stub_entry->stub_type != ppc_stub_plt_call_r2save) | |
| 10722 | return build_plt_stub (htab, stub_entry, p, offset, r); | |
| 10723 | ||
| a7f2871e | 10724 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; |
| a078d95a | 10725 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10726 | |
| 10727 | if (r != NULL) | |
| f378ab09 | 10728 | r[0].r_offset += 2 * 4; |
| 794e51c0 | 10729 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10730 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10731 | ||
| a078d95a | 10732 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10733 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10734 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10735 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10736 | ||
| 10737 | return p; | |
| 10738 | } | |
| 10739 | ||
| 176a0d42 AM |
10740 | static Elf_Internal_Rela * |
| 10741 | get_relocs (asection *sec, int count) | |
| 10742 | { | |
| 10743 | Elf_Internal_Rela *relocs; | |
| 10744 | struct bfd_elf_section_data *elfsec_data; | |
| 10745 | ||
| 10746 | elfsec_data = elf_section_data (sec); | |
| 10747 | relocs = elfsec_data->relocs; | |
| 10748 | if (relocs == NULL) | |
| 10749 | { | |
| 10750 | bfd_size_type relsize; | |
| 10751 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10752 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10753 | if (relocs == NULL) | |
| 10754 | return NULL; | |
| 10755 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10756 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10757 | sizeof (Elf_Internal_Shdr)); | |
| 10758 | if (elfsec_data->rela.hdr == NULL) | |
| 10759 | return NULL; | |
| 10760 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10761 | * sizeof (Elf64_External_Rela)); | |
| 10762 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10763 | sec->reloc_count = 0; |
| 10764 | } | |
| 10765 | relocs += sec->reloc_count; | |
| 10766 | sec->reloc_count += count; | |
| 10767 | return relocs; | |
| 10768 | } | |
| 10769 | ||
| aa374f67 | 10770 | static bfd_vma |
| 25f53a85 | 10771 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10772 | struct ppc_stub_hash_entry *stub_entry) |
| 10773 | { | |
| 25f53a85 | 10774 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10775 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10776 | |
| 10777 | if (r2off == 0) | |
| 10778 | { | |
| 10779 | /* Support linking -R objects. Get the toc pointer from the | |
| 10780 | opd entry. */ | |
| 10781 | char buf[8]; | |
| b9e5796b AM |
10782 | if (!htab->opd_abi) |
| 10783 | return r2off; | |
| aa374f67 AM |
10784 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10785 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10786 | ||
| 10787 | if (strcmp (opd->name, ".opd") != 0 | |
| 10788 | || opd->reloc_count != 0) | |
| 10789 | { | |
| bc30df16 | 10790 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10791 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10792 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10793 | return (bfd_vma) -1; |
| aa374f67 AM |
10794 | } |
| 10795 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10796 | return (bfd_vma) -1; |
| aa374f67 | 10797 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10798 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10799 | } |
| 6f20ed8a | 10800 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10801 | return r2off; |
| 10802 | } | |
| 10803 | ||
| b34976b6 | 10804 | static bfd_boolean |
| 4ce794b7 | 10805 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10806 | { |
| 721956f4 AM |
10807 | struct ppc_stub_hash_entry *stub_entry; |
| 10808 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10809 | struct bfd_link_info *info; |
| 10810 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10811 | bfd_byte *loc; |
| 10812 | bfd_byte *p; | |
| ee75fd95 | 10813 | bfd_vma dest, off; |
| 721956f4 | 10814 | int size; |
| 176a0d42 | 10815 | Elf_Internal_Rela *r; |
| e054468f | 10816 | asection *plt; |
| 5d1634d7 | 10817 | |
| 721956f4 AM |
10818 | /* Massage our args to the form they really have. */ |
| 10819 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10820 | info = in_arg; |
| 5d1634d7 | 10821 | |
| 5d1634d7 | 10822 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10823 | if (htab == NULL) |
| 10824 | return FALSE; | |
| 5d1634d7 | 10825 | |
| 721956f4 | 10826 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10827 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10828 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10829 | |
| 4ce794b7 | 10830 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10831 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10832 | { |
| 721956f4 | 10833 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10834 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10835 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10836 | dest = (stub_entry->target_value |
| 10837 | + stub_entry->target_section->output_offset | |
| 10838 | + stub_entry->target_section->output_section->vma); | |
| 10839 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10840 | off = dest; | |
| 5d1634d7 | 10841 | |
| 721956f4 AM |
10842 | /* And this is where we are coming from. */ |
| 10843 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10844 | + stub_entry->group->stub_sec->output_offset |
| 10845 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10846 | |
| ac2df442 AM |
10847 | size = 4; |
| 10848 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10849 | { |
| 25f53a85 | 10850 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10851 | |
| a7c49797 | 10852 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10853 | { |
| 10854 | htab->stub_error = TRUE; | |
| 10855 | return FALSE; | |
| 10856 | } | |
| e7d1c40c | 10857 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10858 | loc += 4; |
| a7c49797 | 10859 | size = 8; |
| ac2df442 AM |
10860 | if (PPC_HA (r2off) != 0) |
| 10861 | { | |
| e7d1c40c AM |
10862 | bfd_put_32 (htab->params->stub_bfd, |
| 10863 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10864 | loc += 4; |
| a7c49797 AM |
10865 | size += 4; |
| 10866 | } | |
| 10867 | if (PPC_LO (r2off) != 0) | |
| 10868 | { | |
| 10869 | bfd_put_32 (htab->params->stub_bfd, | |
| 10870 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10871 | loc += 4; | |
| 10872 | size += 4; | |
| ac2df442 | 10873 | } |
| ac2df442 | 10874 | off -= size - 4; |
| ad8e1ba5 | 10875 | } |
| e7d1c40c | 10876 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10877 | |
| 5c3dead3 AM |
10878 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10879 | { | |
| bc30df16 AM |
10880 | info->callbacks->einfo |
| 10881 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10882 | stub_entry->root.string); | |
| 5c3dead3 AM |
10883 | htab->stub_error = TRUE; |
| 10884 | return FALSE; | |
| 10885 | } | |
| ee75fd95 AM |
10886 | |
| 10887 | if (info->emitrelocations) | |
| 10888 | { | |
| 6f20ed8a | 10889 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10890 | if (r == NULL) |
| 10891 | return FALSE; | |
| 6f20ed8a | 10892 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10893 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10894 | r->r_addend = dest; | |
| 10895 | if (stub_entry->h != NULL) | |
| 10896 | { | |
| 10897 | struct elf_link_hash_entry **hashes; | |
| 10898 | unsigned long symndx; | |
| 10899 | struct ppc_link_hash_entry *h; | |
| 10900 | ||
| e7d1c40c | 10901 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10902 | if (hashes == NULL) |
| 10903 | { | |
| 10904 | bfd_size_type hsize; | |
| 10905 | ||
| 10906 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10907 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10908 | if (hashes == NULL) |
| 10909 | return FALSE; | |
| e7d1c40c | 10910 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10911 | htab->stub_globals = 1; |
| 10912 | } | |
| 10913 | symndx = htab->stub_globals++; | |
| 10914 | h = stub_entry->h; | |
| 10915 | hashes[symndx] = &h->elf; | |
| 10916 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10917 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10918 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10919 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10920 | /* H is an opd symbol. The addend must be zero. */ | |
| 10921 | r->r_addend = 0; | |
| 10922 | else | |
| 10923 | { | |
| 10924 | off = (h->elf.root.u.def.value | |
| 10925 | + h->elf.root.u.def.section->output_offset | |
| 10926 | + h->elf.root.u.def.section->output_section->vma); | |
| 10927 | r->r_addend -= off; | |
| 10928 | } | |
| 10929 | } | |
| 10930 | } | |
| 721956f4 | 10931 | break; |
| e86ce104 | 10932 | |
| 721956f4 | 10933 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10934 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10935 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10936 | stub_entry->root.string + 9, | |
| b34976b6 | 10937 | FALSE, FALSE); |
| 721956f4 AM |
10938 | if (br_entry == NULL) |
| 10939 | { | |
| 8de848d8 | 10940 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10941 | stub_entry->root.string); |
| b34976b6 AM |
10942 | htab->stub_error = TRUE; |
| 10943 | return FALSE; | |
| 721956f4 AM |
10944 | } |
| 10945 | ||
| 176a0d42 AM |
10946 | dest = (stub_entry->target_value |
| 10947 | + stub_entry->target_section->output_offset | |
| 10948 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10949 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10950 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10951 | |
| 176a0d42 | 10952 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10953 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10954 | |
| f94498ff | 10955 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10956 | { |
| f94498ff | 10957 | br_entry->iter = 0; |
| 84f5d08e | 10958 | |
| f94498ff | 10959 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10960 | { |
| f94498ff AM |
10961 | /* Create a reloc for the branch lookup table entry. */ |
| 10962 | Elf_Internal_Rela rela; | |
| 10963 | bfd_byte *rl; | |
| 10964 | ||
| 10965 | rela.r_offset = (br_entry->offset | |
| 10966 | + htab->brlt->output_offset | |
| 10967 | + htab->brlt->output_section->vma); | |
| 10968 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10969 | rela.r_addend = dest; |
| f94498ff AM |
10970 | |
| 10971 | rl = htab->relbrlt->contents; | |
| 10972 | rl += (htab->relbrlt->reloc_count++ | |
| 10973 | * sizeof (Elf64_External_Rela)); | |
| 10974 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10975 | } | |
| 10976 | else if (info->emitrelocations) | |
| 10977 | { | |
| 176a0d42 AM |
10978 | r = get_relocs (htab->brlt, 1); |
| 10979 | if (r == NULL) | |
| 10980 | return FALSE; | |
| 10981 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10982 | normal reloc processing. Symbols and offsets are not | |
| 10983 | translated from input file to output file form, so | |
| 10984 | set up the offset per the output file. */ | |
| f94498ff AM |
10985 | r->r_offset = (br_entry->offset |
| 10986 | + htab->brlt->output_offset | |
| 10987 | + htab->brlt->output_section->vma); | |
| 10988 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10989 | r->r_addend = dest; |
| 84f5d08e | 10990 | } |
| 84f5d08e | 10991 | } |
| 721956f4 | 10992 | |
| 176a0d42 AM |
10993 | dest = (br_entry->offset |
| 10994 | + htab->brlt->output_offset | |
| 10995 | + htab->brlt->output_section->vma); | |
| 10996 | ||
| 10997 | off = (dest | |
| 4ce794b7 | 10998 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 10999 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11000 | |
| ad8e1ba5 | 11001 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 11002 | { |
| 25f53a85 | 11003 | info->callbacks->einfo |
| bc30df16 | 11004 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 11005 | stub_entry->root.string); |
| 5d1634d7 | 11006 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11007 | htab->stub_error = TRUE; |
| 11008 | return FALSE; | |
| 5d1634d7 | 11009 | } |
| 41bd81ab | 11010 | |
| 176a0d42 AM |
11011 | if (info->emitrelocations) |
| 11012 | { | |
| 6f20ed8a | 11013 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
11014 | if (r == NULL) |
| 11015 | return FALSE; | |
| 6f20ed8a | 11016 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11017 | if (bfd_big_endian (info->output_bfd)) |
| 11018 | r[0].r_offset += 2; | |
| 00f412ee | 11019 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
11020 | r[0].r_offset += 4; |
| 11021 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 11022 | r[0].r_addend = dest; | |
| 11023 | if (PPC_HA (off) != 0) | |
| 11024 | { | |
| 11025 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 11026 | r[1].r_offset = r[0].r_offset + 4; | |
| 11027 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 11028 | r[1].r_addend = r[0].r_addend; | |
| 11029 | } | |
| 11030 | } | |
| 11031 | ||
| 00f412ee | 11032 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 11033 | { |
| 176a0d42 | 11034 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11035 | { |
| 11036 | size = 16; | |
| e7d1c40c | 11037 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11038 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11039 | loc += 4; |
| e7d1c40c | 11040 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11041 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11042 | } |
| 11043 | else | |
| 11044 | { | |
| 11045 | size = 12; | |
| e7d1c40c AM |
11046 | bfd_put_32 (htab->params->stub_bfd, |
| 11047 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 11048 | } |
| ad8e1ba5 AM |
11049 | } |
| 11050 | else | |
| 11051 | { | |
| 25f53a85 | 11052 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 11053 | |
| a7c49797 | 11054 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11055 | { |
| 11056 | htab->stub_error = TRUE; | |
| 11057 | return FALSE; | |
| 11058 | } | |
| ad8e1ba5 | 11059 | |
| e7d1c40c | 11060 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 11061 | loc += 4; |
| 00f412ee | 11062 | size = 16; |
| 176a0d42 | 11063 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11064 | { |
| 11065 | size += 4; | |
| e7d1c40c | 11066 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11067 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 11068 | loc += 4; |
| e7d1c40c | 11069 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 11070 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
11071 | } |
| 11072 | else | |
| e7d1c40c | 11073 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
11074 | |
| 11075 | if (PPC_HA (r2off) != 0) | |
| 11076 | { | |
| 11077 | size += 4; | |
| 00f412ee | 11078 | loc += 4; |
| e7d1c40c AM |
11079 | bfd_put_32 (htab->params->stub_bfd, |
| 11080 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
11081 | } |
| 11082 | if (PPC_LO (r2off) != 0) | |
| 11083 | { | |
| 11084 | size += 4; | |
| ac2df442 | 11085 | loc += 4; |
| e7d1c40c AM |
11086 | bfd_put_32 (htab->params->stub_bfd, |
| 11087 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 11088 | } |
| ad8e1ba5 AM |
11089 | } |
| 11090 | loc += 4; | |
| e7d1c40c | 11091 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 11092 | loc += 4; |
| e7d1c40c | 11093 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 11094 | break; |
| 5d1634d7 | 11095 | |
| 721956f4 | 11096 | case ppc_stub_plt_call: |
| 794e51c0 | 11097 | case ppc_stub_plt_call_r2save: |
| e054468f | 11098 | if (stub_entry->h != NULL |
| b31867b6 AM |
11099 | && stub_entry->h->is_func_descriptor |
| 11100 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 11101 | { |
| b31867b6 AM |
11102 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 11103 | ||
| 11104 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 11105 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| 8c5b4e52 AM |
11106 | if (fh->elf.root.type == bfd_link_hash_undefined |
| 11107 | && (stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11108 | || stub_entry->h->elf.root.type == bfd_link_hash_defweak)) | |
| b31867b6 | 11109 | fh->elf.root.type = bfd_link_hash_undefweak; |
| c862ae31 AM |
11110 | } |
| 11111 | ||
| 721956f4 | 11112 | /* Now build the stub. */ |
| e054468f | 11113 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 11114 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
11115 | abort (); |
| 11116 | ||
| 33e44f2e | 11117 | plt = htab->elf.splt; |
| 25f23106 AM |
11118 | if (!htab->elf.dynamic_sections_created |
| 11119 | || stub_entry->h == NULL | |
| 11120 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11121 | plt = htab->elf.iplt; |
| e054468f AM |
11122 | |
| 11123 | dest += plt->output_offset + plt->output_section->vma; | |
| 11124 | ||
| 11125 | if (stub_entry->h == NULL | |
| 11126 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11127 | { | |
| 11128 | Elf_Internal_Rela rela; | |
| 11129 | bfd_byte *rl; | |
| 11130 | ||
| 11131 | rela.r_offset = dest; | |
| ee67d69a AM |
11132 | if (htab->opd_abi) |
| 11133 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11134 | else | |
| 11135 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11136 | rela.r_addend = (stub_entry->target_value |
| 11137 | + stub_entry->target_section->output_offset | |
| 11138 | + stub_entry->target_section->output_section->vma); | |
| 11139 | ||
| 33e44f2e AM |
11140 | rl = (htab->elf.irelplt->contents |
| 11141 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11142 | * sizeof (Elf64_External_Rela))); |
| 11143 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f | 11144 | stub_entry->plt_ent->plt.offset |= 1; |
| 82e66161 | 11145 | htab->local_ifunc_resolver = 1; |
| e054468f | 11146 | } |
| 176a0d42 AM |
11147 | |
| 11148 | off = (dest | |
| e054468f | 11149 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11150 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11151 | |
| ad8e1ba5 | 11152 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11153 | { |
| 25f53a85 | 11154 | info->callbacks->einfo |
| 695344c0 | 11155 | /* xgettext:c-format */ |
| bc30df16 | 11156 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11157 | stub_entry->h != NULL |
| 11158 | ? stub_entry->h->elf.root.root.string | |
| 11159 | : "<local sym>"); | |
| 721956f4 | 11160 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11161 | htab->stub_error = TRUE; |
| 11162 | return FALSE; | |
| 721956f4 AM |
11163 | } |
| 11164 | ||
| e7d1c40c | 11165 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11166 | { |
| 11167 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11168 | ||
| 6f20ed8a AM |
11169 | stub_entry->group->stub_sec->size += pad; |
| 11170 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11171 | loc += pad; |
| 11172 | } | |
| 11173 | ||
| 176a0d42 AM |
11174 | r = NULL; |
| 11175 | if (info->emitrelocations) | |
| 11176 | { | |
| 6f20ed8a | 11177 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11178 | ((PPC_HA (off) != 0) |
| 11179 | + (htab->opd_abi | |
| e7d1c40c | 11180 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11181 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11182 | : 1))); | |
| 176a0d42 AM |
11183 | if (r == NULL) |
| 11184 | return FALSE; | |
| 6f20ed8a | 11185 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11186 | if (bfd_big_endian (info->output_bfd)) |
| 11187 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11188 | r[0].r_addend = dest; |
| 11189 | } | |
| a7f2871e AM |
11190 | if (stub_entry->h != NULL |
| 11191 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11192 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11193 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11194 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11195 | else |
| 794e51c0 | 11196 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11197 | size = p - loc; |
| 11198 | break; | |
| 11199 | ||
| a4b6fadd AM |
11200 | case ppc_stub_save_res: |
| 11201 | return TRUE; | |
| 11202 | ||
| 721956f4 AM |
11203 | default: |
| 11204 | BFD_FAIL (); | |
| b34976b6 | 11205 | return FALSE; |
| 721956f4 AM |
11206 | } |
| 11207 | ||
| 6f20ed8a | 11208 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11209 | |
| e7d1c40c | 11210 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11211 | { |
| 11212 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11213 | size_t len1, len2; |
| 11214 | char *name; | |
| 11215 | const char *const stub_str[] = { "long_branch", | |
| 11216 | "long_branch_r2off", | |
| 11217 | "plt_branch", | |
| 11218 | "plt_branch_r2off", | |
| 794e51c0 | 11219 | "plt_call", |
| ee75fd95 AM |
11220 | "plt_call" }; |
| 11221 | ||
| 11222 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11223 | len2 = strlen (stub_entry->root.string); | |
| 11224 | name = bfd_malloc (len1 + len2 + 2); | |
| 11225 | if (name == NULL) | |
| 11226 | return FALSE; | |
| 11227 | memcpy (name, stub_entry->root.string, 9); | |
| 11228 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11229 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11230 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11231 | if (h == NULL) |
| 11232 | return FALSE; | |
| 11233 | if (h->root.type == bfd_link_hash_new) | |
| 11234 | { | |
| 11235 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11236 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11237 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11238 | h->ref_regular = 1; |
| 11239 | h->def_regular = 1; | |
| 11240 | h->ref_regular_nonweak = 1; | |
| 11241 | h->forced_local = 1; | |
| 11242 | h->non_elf = 0; | |
| 2ec55de3 | 11243 | h->root.linker_def = 1; |
| 97b639ba AM |
11244 | } |
| 11245 | } | |
| 11246 | ||
| b34976b6 | 11247 | return TRUE; |
| 721956f4 AM |
11248 | } |
| 11249 | ||
| 11250 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11251 | we know stub section sizes, and select plt_branch stubs where | |
| 11252 | long_branch stubs won't do. */ | |
| 11253 | ||
| b34976b6 | 11254 | static bfd_boolean |
| 4ce794b7 | 11255 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11256 | { |
| 11257 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11258 | struct bfd_link_info *info; |
| 721956f4 AM |
11259 | struct ppc_link_hash_table *htab; |
| 11260 | bfd_vma off; | |
| 11261 | int size; | |
| 11262 | ||
| 11263 | /* Massage our args to the form they really have. */ | |
| 11264 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11265 | info = in_arg; |
| 11266 | ||
| 11267 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11268 | if (htab == NULL) |
| 11269 | return FALSE; | |
| 721956f4 | 11270 | |
| a4b6fadd AM |
11271 | if (stub_entry->h != NULL |
| 11272 | && stub_entry->h->save_res | |
| 11273 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11274 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11275 | { | |
| 11276 | /* Don't make stubs to out-of-line register save/restore | |
| 11277 | functions. Instead, emit copies of the functions. */ | |
| 11278 | stub_entry->group->needs_save_res = 1; | |
| 11279 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11280 | return TRUE; | |
| 11281 | } | |
| 11282 | ||
| 794e51c0 AM |
11283 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11284 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11285 | { |
| e054468f AM |
11286 | asection *plt; |
| 11287 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11288 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11289 | abort (); |
| 33e44f2e | 11290 | plt = htab->elf.splt; |
| 25f23106 AM |
11291 | if (!htab->elf.dynamic_sections_created |
| 11292 | || stub_entry->h == NULL | |
| 11293 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11294 | plt = htab->elf.iplt; |
| e054468f AM |
11295 | off += (plt->output_offset |
| 11296 | + plt->output_section->vma | |
| 11297 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11298 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11299 | |
| 794e51c0 | 11300 | size = plt_stub_size (htab, stub_entry, off); |
| d4aaa2a0 AM |
11301 | if (stub_entry->h != NULL |
| 11302 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11303 | || stub_entry->h == htab->tls_get_addr) | |
| 11304 | && htab->params->tls_get_addr_opt | |
| 11305 | && (ALWAYS_EMIT_R2SAVE | |
| 11306 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| 11307 | stub_entry->group->tls_get_addr_opt_bctrl | |
| 11308 | = stub_entry->group->stub_sec->size + size - 5 * 4; | |
| 11309 | ||
| e7d1c40c | 11310 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11311 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11312 | if (info->emitrelocations) |
| 11313 | { | |
| 6f20ed8a | 11314 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11315 | += ((PPC_HA (off) != 0) |
| 11316 | + (htab->opd_abi | |
| e7d1c40c | 11317 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11318 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11319 | : 1)); | |
| 6f20ed8a | 11320 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11321 | } |
| 721956f4 AM |
11322 | } |
| 11323 | else | |
| 11324 | { | |
| ad8e1ba5 AM |
11325 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11326 | variants. */ | |
| ac2df442 | 11327 | bfd_vma r2off = 0; |
| 6911b7dc | 11328 | bfd_vma local_off = 0; |
| ac2df442 | 11329 | |
| 721956f4 AM |
11330 | off = (stub_entry->target_value |
| 11331 | + stub_entry->target_section->output_offset | |
| 11332 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11333 | off -= (stub_entry->group->stub_sec->size |
| 11334 | + stub_entry->group->stub_sec->output_offset | |
| 11335 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11336 | |
| ad8e1ba5 AM |
11337 | /* Reset the stub type from the plt variant in case we now |
| 11338 | can reach with a shorter stub. */ | |
| 11339 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11340 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11341 | ||
| 11342 | size = 4; | |
| 11343 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11344 | { | |
| 25f53a85 | 11345 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11346 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11347 | { |
| 11348 | htab->stub_error = TRUE; | |
| 11349 | return FALSE; | |
| 11350 | } | |
| a7c49797 | 11351 | size = 8; |
| ac2df442 | 11352 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11353 | size += 4; |
| 11354 | if (PPC_LO (r2off) != 0) | |
| 11355 | size += 4; | |
| ac2df442 | 11356 | off -= size - 4; |
| ad8e1ba5 AM |
11357 | } |
| 11358 | ||
| 6911b7dc AM |
11359 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11360 | ||
| b9e5796b AM |
11361 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11362 | Do the same for -R objects without function descriptors. */ | |
| 11363 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11364 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11365 | && r2off == 0 |
| 11366 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11367 | { |
| 11368 | struct ppc_branch_hash_entry *br_entry; | |
| 11369 | ||
| 11370 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11371 | stub_entry->root.string + 9, | |
| b34976b6 | 11372 | TRUE, FALSE); |
| 721956f4 AM |
11373 | if (br_entry == NULL) |
| 11374 | { | |
| 8de848d8 | 11375 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11376 | stub_entry->root.string); |
| b34976b6 AM |
11377 | htab->stub_error = TRUE; |
| 11378 | return FALSE; | |
| 721956f4 AM |
11379 | } |
| 11380 | ||
| 11381 | if (br_entry->iter != htab->stub_iteration) | |
| 11382 | { | |
| 11383 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11384 | br_entry->offset = htab->brlt->size; |
| 11385 | htab->brlt->size += 8; | |
| 63bc6f6c | 11386 | |
| ee75fd95 | 11387 | if (htab->relbrlt != NULL) |
| eea6121a | 11388 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11389 | else if (info->emitrelocations) |
| 11390 | { | |
| 11391 | htab->brlt->reloc_count += 1; | |
| 11392 | htab->brlt->flags |= SEC_RELOC; | |
| 11393 | } | |
| 721956f4 | 11394 | } |
| ad8e1ba5 AM |
11395 | |
| 11396 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11397 | off = (br_entry->offset |
| 11398 | + htab->brlt->output_offset | |
| 11399 | + htab->brlt->output_section->vma | |
| 11400 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11401 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11402 | |
| 176a0d42 AM |
11403 | if (info->emitrelocations) |
| 11404 | { | |
| 6f20ed8a AM |
11405 | stub_entry->group->stub_sec->reloc_count |
| 11406 | += 1 + (PPC_HA (off) != 0); | |
| 11407 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11408 | } |
| 11409 | ||
| 00f412ee | 11410 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11411 | { |
| 11412 | size = 12; | |
| 176a0d42 | 11413 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11414 | size = 16; |
| 11415 | } | |
| 11416 | else | |
| 11417 | { | |
| 00f412ee | 11418 | size = 16; |
| 176a0d42 | 11419 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11420 | size += 4; |
| 11421 | ||
| 11422 | if (PPC_HA (r2off) != 0) | |
| 11423 | size += 4; | |
| 00f412ee AM |
11424 | if (PPC_LO (r2off) != 0) |
| 11425 | size += 4; | |
| ac2df442 | 11426 | } |
| 721956f4 | 11427 | } |
| 84f5d08e AM |
11428 | else if (info->emitrelocations) |
| 11429 | { | |
| 6f20ed8a AM |
11430 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11431 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11432 | } |
| 721956f4 AM |
11433 | } |
| 11434 | ||
| 6f20ed8a | 11435 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11436 | return TRUE; |
| 721956f4 AM |
11437 | } |
| 11438 | ||
| 11439 | /* Set up various things so that we can make a list of input sections | |
| 11440 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11441 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11442 | |
| 11443 | int | |
| e7d1c40c | 11444 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11445 | { |
| 6f20ed8a | 11446 | unsigned int id; |
| 721956f4 AM |
11447 | bfd_size_type amt; |
| 11448 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11449 | ||
| 4dfe6ac6 NC |
11450 | if (htab == NULL) |
| 11451 | return -1; | |
| 4c52953f | 11452 | |
| 6f20ed8a AM |
11453 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11454 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11455 | htab->sec_info = bfd_zmalloc (amt); | |
| 11456 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11457 | return -1; |
| 11458 | ||
| 3d6f9012 AM |
11459 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11460 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11461 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11462 | |
| 721956f4 AM |
11463 | return 1; |
| 11464 | } | |
| 11465 | ||
| 927be08e AM |
11466 | /* Set up for first pass at multitoc partitioning. */ |
| 11467 | ||
| 11468 | void | |
| 11469 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11470 | { | |
| 11471 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11472 | ||
| 1c865ab2 | 11473 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11474 | htab->toc_bfd = NULL; |
| 11475 | htab->toc_first_sec = NULL; | |
| 11476 | } | |
| 11477 | ||
| e717da7e AM |
11478 | /* The linker repeatedly calls this function for each TOC input section |
| 11479 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11480 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11481 | |
| 927be08e | 11482 | bfd_boolean |
| 4ce794b7 | 11483 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11484 | { |
| 11485 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11486 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11487 | |
| 4dfe6ac6 NC |
11488 | if (htab == NULL) |
| 11489 | return FALSE; | |
| 11490 | ||
| 927be08e | 11491 | if (!htab->second_toc_pass) |
| 4c52953f | 11492 | { |
| 927be08e | 11493 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11494 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11495 | ||
| 11496 | if (new_bfd) | |
| bf102f86 AM |
11497 | { |
| 11498 | htab->toc_bfd = isec->owner; | |
| 11499 | htab->toc_first_sec = isec; | |
| 11500 | } | |
| 927be08e | 11501 | |
| bf102f86 AM |
11502 | addr = isec->output_offset + isec->output_section->vma; |
| 11503 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11504 | limit = 0x80008000; |
| 11505 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11506 | limit = 0x10000; | |
| 11507 | if (off + isec->size > limit) | |
| bf102f86 AM |
11508 | { |
| 11509 | addr = (htab->toc_first_sec->output_offset | |
| 11510 | + htab->toc_first_sec->output_section->vma); | |
| 11511 | htab->toc_curr = addr; | |
| a27e685f | 11512 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11513 | } |
| 99877b66 | 11514 | |
| 927be08e AM |
11515 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11516 | for the input section to be the offset relative to the | |
| 11517 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11518 | offset allows us to move the toc as a whole without | |
| 11519 | recalculating input elf_gp. */ | |
| 11520 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11521 | off += TOC_BASE_OFF; | |
| 11522 | ||
| 11523 | /* Die if someone uses a linker script that doesn't keep input | |
| 11524 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11525 | if (new_bfd |
| 11526 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11527 | && elf_gp (isec->owner) != off) |
| 11528 | return FALSE; | |
| 11529 | ||
| 11530 | elf_gp (isec->owner) = off; | |
| 11531 | return TRUE; | |
| 4c52953f | 11532 | } |
| 927be08e AM |
11533 | |
| 11534 | /* During the second pass toc_first_sec points to the start of | |
| 11535 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11536 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11537 | if (htab->toc_bfd == isec->owner) | |
| 11538 | return TRUE; | |
| 11539 | htab->toc_bfd = isec->owner; | |
| 11540 | ||
| 11541 | if (htab->toc_first_sec == NULL | |
| 11542 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11543 | { | |
| 11544 | htab->toc_curr = elf_gp (isec->owner); | |
| 11545 | htab->toc_first_sec = isec; | |
| 11546 | } | |
| 11547 | addr = (htab->toc_first_sec->output_offset | |
| 11548 | + htab->toc_first_sec->output_section->vma); | |
| 11549 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11550 | elf_gp (isec->owner) = off; | |
| 11551 | ||
| 11552 | return TRUE; | |
| ad8e1ba5 AM |
11553 | } |
| 11554 | ||
| 927be08e AM |
11555 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11556 | symbol H. */ | |
| 11557 | ||
| 11558 | static bfd_boolean | |
| 11559 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11560 | { | |
| 11561 | if (h->root.type == bfd_link_hash_indirect) | |
| 11562 | return TRUE; | |
| 11563 | ||
| 927be08e AM |
11564 | merge_got_entries (&h->got.glist); |
| 11565 | ||
| 11566 | return TRUE; | |
| 11567 | } | |
| 11568 | ||
| 11569 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11570 | symbol H. */ | |
| 11571 | ||
| 11572 | static bfd_boolean | |
| 11573 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11574 | { | |
| 11575 | struct got_entry *gent; | |
| 11576 | ||
| 11577 | if (h->root.type == bfd_link_hash_indirect) | |
| 11578 | return TRUE; | |
| 11579 | ||
| 927be08e AM |
11580 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11581 | if (!gent->is_indirect) | |
| 11582 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11583 | return TRUE; | |
| 11584 | } | |
| 11585 | ||
| 11586 | /* Called on the first multitoc pass after the last call to | |
| 11587 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11588 | entries. */ | |
| 11589 | ||
| 11590 | bfd_boolean | |
| 11591 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11592 | { |
| 11593 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11594 | struct bfd *ibfd, *ibfd2; |
| 11595 | bfd_boolean done_something; | |
| 11596 | ||
| 11597 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11598 | |
| 7865406b AM |
11599 | if (!htab->do_multi_toc) |
| 11600 | return FALSE; | |
| 11601 | ||
| d0fae19d | 11602 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11603 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11604 | ||
| 11605 | /* And tlsld_got. */ | |
| c72f2fb2 | 11606 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11607 | { |
| 11608 | struct got_entry *ent, *ent2; | |
| 11609 | ||
| 11610 | if (!is_ppc64_elf (ibfd)) | |
| 11611 | continue; | |
| 11612 | ||
| 11613 | ent = ppc64_tlsld_got (ibfd); | |
| 11614 | if (!ent->is_indirect | |
| 11615 | && ent->got.offset != (bfd_vma) -1) | |
| 11616 | { | |
| c72f2fb2 | 11617 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11618 | { |
| 11619 | if (!is_ppc64_elf (ibfd2)) | |
| 11620 | continue; | |
| 11621 | ||
| 11622 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11623 | if (!ent2->is_indirect | |
| 11624 | && ent2->got.offset != (bfd_vma) -1 | |
| 11625 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11626 | { | |
| 11627 | ent2->is_indirect = TRUE; | |
| 11628 | ent2->got.ent = ent; | |
| 11629 | } | |
| 11630 | } | |
| 11631 | } | |
| 11632 | } | |
| 11633 | ||
| 11634 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11635 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11636 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11637 | htab->got_reli_size = 0; |
| 11638 | ||
| c72f2fb2 | 11639 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11640 | { |
| 11641 | asection *got, *relgot; | |
| 11642 | ||
| 11643 | if (!is_ppc64_elf (ibfd)) | |
| 11644 | continue; | |
| 11645 | ||
| 11646 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11647 | if (got != NULL) | |
| 11648 | { | |
| 11649 | got->rawsize = got->size; | |
| 11650 | got->size = 0; | |
| 11651 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11652 | relgot->rawsize = relgot->size; | |
| 11653 | relgot->size = 0; | |
| 11654 | } | |
| 11655 | } | |
| 11656 | ||
| 11657 | /* Now reallocate the got, local syms first. We don't need to | |
| 11658 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11659 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11660 | { |
| 11661 | struct got_entry **lgot_ents; | |
| 11662 | struct got_entry **end_lgot_ents; | |
| 11663 | struct plt_entry **local_plt; | |
| 11664 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11665 | unsigned char *lgot_masks; |
| 927be08e AM |
11666 | bfd_size_type locsymcount; |
| 11667 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11668 | asection *s; |
| 927be08e AM |
11669 | |
| 11670 | if (!is_ppc64_elf (ibfd)) | |
| 11671 | continue; | |
| 11672 | ||
| 11673 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11674 | if (!lgot_ents) | |
| 11675 | continue; | |
| 11676 | ||
| 11677 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11678 | locsymcount = symtab_hdr->sh_info; | |
| 11679 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11680 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11681 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11682 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11683 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11684 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11685 | { | |
| 11686 | struct got_entry *ent; | |
| 11687 | ||
| 11688 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11689 | { |
| 19e08130 AM |
11690 | unsigned int ent_size = 8; |
| 11691 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11692 | ||
| d0fae19d AM |
11693 | ent->got.offset = s->size; |
| 11694 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11695 | { |
| 19e08130 AM |
11696 | ent_size *= 2; |
| 11697 | rel_size *= 2; | |
| 11698 | } | |
| 11699 | s->size += ent_size; | |
| 11700 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11701 | { | |
| 33e44f2e | 11702 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11703 | htab->got_reli_size += rel_size; |
| 11704 | } | |
| 0e1862bb | 11705 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11706 | { |
| 11707 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11708 | srel->size += rel_size; | |
| d0fae19d AM |
11709 | } |
| 11710 | } | |
| 927be08e AM |
11711 | } |
| 11712 | } | |
| 11713 | ||
| 11714 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11715 | ||
| c72f2fb2 | 11716 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11717 | { |
| 11718 | struct got_entry *ent; | |
| 11719 | ||
| 11720 | if (!is_ppc64_elf (ibfd)) | |
| 11721 | continue; | |
| 11722 | ||
| 11723 | ent = ppc64_tlsld_got (ibfd); | |
| 11724 | if (!ent->is_indirect | |
| 11725 | && ent->got.offset != (bfd_vma) -1) | |
| 11726 | { | |
| 11727 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11728 | ent->got.offset = s->size; | |
| 11729 | s->size += 16; | |
| 0e1862bb | 11730 | if (bfd_link_pic (info)) |
| 927be08e AM |
11731 | { |
| 11732 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11733 | srel->size += sizeof (Elf64_External_Rela); | |
| 11734 | } | |
| 11735 | } | |
| 11736 | } | |
| 11737 | ||
| 33e44f2e | 11738 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11739 | if (!done_something) |
| c72f2fb2 | 11740 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11741 | { |
| 11742 | asection *got; | |
| 11743 | ||
| 11744 | if (!is_ppc64_elf (ibfd)) | |
| 11745 | continue; | |
| 11746 | ||
| 11747 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11748 | if (got != NULL) | |
| 11749 | { | |
| 11750 | done_something = got->rawsize != got->size; | |
| 11751 | if (done_something) | |
| 11752 | break; | |
| 11753 | } | |
| 11754 | } | |
| 11755 | ||
| 11756 | if (done_something) | |
| e7d1c40c | 11757 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11758 | |
| 11759 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11760 | on input sections. */ | |
| 11761 | htab->toc_bfd = NULL; | |
| 11762 | htab->toc_first_sec = NULL; | |
| 11763 | htab->second_toc_pass = TRUE; | |
| 11764 | return done_something; | |
| 11765 | } | |
| 11766 | ||
| 11767 | /* Called after second pass of multitoc partitioning. */ | |
| 11768 | ||
| 11769 | void | |
| 11770 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11771 | { | |
| 11772 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11773 | ||
| 11774 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11775 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11776 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11777 | } |
| 11778 | ||
| 9b5ecbd0 AM |
11779 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11780 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11781 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11782 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11783 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11784 | for a stub was detected. If called from the top level, a return of | |
| 11785 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11786 | |
| 11787 | static int | |
| 4ce794b7 | 11788 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11789 | { |
| 9b5ecbd0 | 11790 | int ret; |
| 70cc837d AM |
11791 | |
| 11792 | /* Mark this section as checked. */ | |
| 11793 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11794 | |
| 772119ce AM |
11795 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11796 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11797 | return 0; | |
| 11798 | ||
| eea6121a | 11799 | if (isec->size == 0) |
| 082c50f8 AM |
11800 | return 0; |
| 11801 | ||
| 4c52953f AM |
11802 | if (isec->output_section == NULL) |
| 11803 | return 0; | |
| 11804 | ||
| 4c52953f | 11805 | ret = 0; |
| 70cc837d | 11806 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11807 | { |
| 70cc837d AM |
11808 | Elf_Internal_Rela *relstart, *rel; |
| 11809 | Elf_Internal_Sym *local_syms; | |
| 11810 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11811 | |
| 70cc837d AM |
11812 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11813 | info->keep_memory); | |
| 11814 | if (relstart == NULL) | |
| 11815 | return -1; | |
| 90aecf7a | 11816 | |
| 70cc837d AM |
11817 | /* Look for branches to outside of this section. */ |
| 11818 | local_syms = NULL; | |
| 11819 | htab = ppc_hash_table (info); | |
| 11820 | if (htab == NULL) | |
| 11821 | return -1; | |
| 4c52953f | 11822 | |
| 70cc837d | 11823 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11824 | { |
| 70cc837d AM |
11825 | enum elf_ppc64_reloc_type r_type; |
| 11826 | unsigned long r_symndx; | |
| 11827 | struct elf_link_hash_entry *h; | |
| 11828 | struct ppc_link_hash_entry *eh; | |
| 11829 | Elf_Internal_Sym *sym; | |
| 11830 | asection *sym_sec; | |
| 11831 | struct _opd_sec_data *opd; | |
| 11832 | bfd_vma sym_value; | |
| 11833 | bfd_vma dest; | |
| 11834 | ||
| 11835 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11836 | if (r_type != R_PPC64_REL24 | |
| 11837 | && r_type != R_PPC64_REL14 | |
| 11838 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11839 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11840 | continue; | |
| 4c52953f | 11841 | |
| 70cc837d AM |
11842 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11843 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11844 | isec->owner)) | |
| 4c52953f | 11845 | { |
| 70cc837d AM |
11846 | ret = -1; |
| 11847 | break; | |
| 11848 | } | |
| 4c52953f | 11849 | |
| 70cc837d AM |
11850 | /* Calls to dynamic lib functions go through a plt call stub |
| 11851 | that uses r2. */ | |
| 11852 | eh = (struct ppc_link_hash_entry *) h; | |
| 11853 | if (eh != NULL | |
| 11854 | && (eh->elf.plt.plist != NULL | |
| 11855 | || (eh->oh != NULL | |
| 11856 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11857 | { | |
| 11858 | ret = 1; | |
| 11859 | break; | |
| 4c52953f AM |
11860 | } |
| 11861 | ||
| 70cc837d AM |
11862 | if (sym_sec == NULL) |
| 11863 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11864 | continue; |
| 4c52953f | 11865 | |
| 70cc837d AM |
11866 | /* Assume branches to other sections not included in the |
| 11867 | link need stubs too, to cover -R and absolute syms. */ | |
| 11868 | if (sym_sec->output_section == NULL) | |
| 11869 | { | |
| 11870 | ret = 1; | |
| 11871 | break; | |
| 11872 | } | |
| 4c52953f | 11873 | |
| 70cc837d AM |
11874 | if (h == NULL) |
| 11875 | sym_value = sym->st_value; | |
| 11876 | else | |
| 11877 | { | |
| 11878 | if (h->root.type != bfd_link_hash_defined | |
| 11879 | && h->root.type != bfd_link_hash_defweak) | |
| 11880 | abort (); | |
| 11881 | sym_value = h->root.u.def.value; | |
| 11882 | } | |
| 11883 | sym_value += rel->r_addend; | |
| 4c52953f | 11884 | |
| 70cc837d AM |
11885 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11886 | opd = get_opd_info (sym_sec); | |
| 11887 | if (opd != NULL) | |
| 11888 | { | |
| 11889 | if (h == NULL && opd->adjust != NULL) | |
| 11890 | { | |
| 11891 | long adjust; | |
| 4c52953f | 11892 | |
| 92a9c616 | 11893 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11894 | if (adjust == -1) |
| 11895 | /* Assume deleted functions won't ever be called. */ | |
| 11896 | continue; | |
| 11897 | sym_value += adjust; | |
| 11898 | } | |
| 4c52953f | 11899 | |
| aef36ac1 AM |
11900 | dest = opd_entry_value (sym_sec, sym_value, |
| 11901 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11902 | if (dest == (bfd_vma) -1) |
| 11903 | continue; | |
| 11904 | } | |
| 11905 | else | |
| 11906 | dest = (sym_value | |
| 11907 | + sym_sec->output_offset | |
| 11908 | + sym_sec->output_section->vma); | |
| 4c52953f | 11909 | |
| 70cc837d AM |
11910 | /* Ignore branch to self. */ |
| 11911 | if (sym_sec == isec) | |
| 11912 | continue; | |
| 4c52953f | 11913 | |
| 70cc837d AM |
11914 | /* If the called function uses the toc, we need a stub. */ |
| 11915 | if (sym_sec->has_toc_reloc | |
| 11916 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11917 | { |
| 70cc837d | 11918 | ret = 1; |
| 4c52953f AM |
11919 | break; |
| 11920 | } | |
| 70cc837d AM |
11921 | |
| 11922 | /* Assume any branch that needs a long branch stub might in fact | |
| 11923 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11924 | else if (dest - (isec->output_offset | |
| 11925 | + isec->output_section->vma | |
| 6911b7dc AM |
11926 | + rel->r_offset) + (1 << 25) |
| 11927 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11928 | ? h->other | |
| 11929 | : sym->st_other)) | |
| 4c52953f | 11930 | { |
| 70cc837d AM |
11931 | ret = 1; |
| 11932 | break; | |
| 11933 | } | |
| 11934 | ||
| 11935 | /* If calling back to a section in the process of being | |
| 11936 | tested, we can't say for sure that no toc adjusting stubs | |
| 11937 | are needed, so don't return zero. */ | |
| 11938 | else if (sym_sec->call_check_in_progress) | |
| 11939 | ret = 2; | |
| 11940 | ||
| 11941 | /* Branches to another section that itself doesn't have any TOC | |
| 11942 | references are OK. Recursively call ourselves to check. */ | |
| 11943 | else if (!sym_sec->call_check_done) | |
| 11944 | { | |
| 11945 | int recur; | |
| 11946 | ||
| 11947 | /* Mark current section as indeterminate, so that other | |
| 11948 | sections that call back to current won't be marked as | |
| 11949 | known. */ | |
| 11950 | isec->call_check_in_progress = 1; | |
| 11951 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11952 | isec->call_check_in_progress = 0; | |
| 11953 | ||
| 4c52953f AM |
11954 | if (recur != 0) |
| 11955 | { | |
| 70cc837d AM |
11956 | ret = recur; |
| 11957 | if (recur != 2) | |
| 11958 | break; | |
| 4c52953f AM |
11959 | } |
| 11960 | } | |
| 4c52953f | 11961 | } |
| 70cc837d AM |
11962 | |
| 11963 | if (local_syms != NULL | |
| 11964 | && (elf_symtab_hdr (isec->owner).contents | |
| 11965 | != (unsigned char *) local_syms)) | |
| 11966 | free (local_syms); | |
| 11967 | if (elf_section_data (isec)->relocs != relstart) | |
| 11968 | free (relstart); | |
| 9b5ecbd0 AM |
11969 | } |
| 11970 | ||
| 70cc837d AM |
11971 | if ((ret & 1) == 0 |
| 11972 | && isec->map_head.s != NULL | |
| 11973 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11974 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11975 | { | |
| 11976 | if (isec->map_head.s->has_toc_reloc | |
| 11977 | || isec->map_head.s->makes_toc_func_call) | |
| 11978 | ret = 1; | |
| 11979 | else if (!isec->map_head.s->call_check_done) | |
| 11980 | { | |
| 11981 | int recur; | |
| 11982 | isec->call_check_in_progress = 1; | |
| 11983 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11984 | isec->call_check_in_progress = 0; | |
| 11985 | if (recur != 0) | |
| 11986 | ret = recur; | |
| 11987 | } | |
| 11988 | } | |
| 11989 | ||
| 11990 | if (ret == 1) | |
| 11991 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11992 | |
| 9b5ecbd0 AM |
11993 | return ret; |
| 11994 | } | |
| 11995 | ||
| 721956f4 AM |
11996 | /* The linker repeatedly calls this function for each input section, |
| 11997 | in the order that input sections are linked into output sections. | |
| 11998 | Build lists of input sections to determine groupings between which | |
| 11999 | we may insert linker stubs. */ | |
| 12000 | ||
| 9b5ecbd0 | 12001 | bfd_boolean |
| 4ce794b7 | 12002 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
12003 | { |
| 12004 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12005 | ||
| 4dfe6ac6 NC |
12006 | if (htab == NULL) |
| 12007 | return FALSE; | |
| 12008 | ||
| 734b6cf9 | 12009 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 12010 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 12011 | { |
| 3d6f9012 AM |
12012 | /* This happens to make the list in reverse order, |
| 12013 | which is what we want. */ | |
| 6f20ed8a AM |
12014 | htab->sec_info[isec->id].u.list |
| 12015 | = htab->sec_info[isec->output_section->id].u.list; | |
| 12016 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 12017 | } |
| ad8e1ba5 | 12018 | |
| 4c52953f | 12019 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 12020 | { |
| 8b974ba3 AM |
12021 | /* Analyse sections that aren't already flagged as needing a |
| 12022 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 12023 | .fixup contains branches, but only back to the function that | |
| 12024 | hit an exception. */ | |
| 12025 | if (!(isec->has_toc_reloc | |
| 12026 | || (isec->flags & SEC_CODE) == 0 | |
| 12027 | || strcmp (isec->name, ".fixup") == 0 | |
| 12028 | || isec->call_check_done)) | |
| 12029 | { | |
| 12030 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 12031 | return FALSE; |
| 8b974ba3 AM |
12032 | } |
| 12033 | /* Make all sections use the TOC assigned for this object file. | |
| 12034 | This will be wrong for pasted sections; We fix that in | |
| 12035 | check_pasted_section(). */ | |
| 12036 | if (elf_gp (isec->owner) != 0) | |
| 12037 | htab->toc_curr = elf_gp (isec->owner); | |
| 12038 | } | |
| 12039 | ||
| 6f20ed8a | 12040 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 12041 | return TRUE; |
| 721956f4 AM |
12042 | } |
| 12043 | ||
| 70cc837d AM |
12044 | /* Check that all .init and .fini sections use the same toc, if they |
| 12045 | have toc relocs. */ | |
| 12046 | ||
| 12047 | static bfd_boolean | |
| 12048 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 12049 | { | |
| 12050 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 12051 | ||
| 12052 | if (o != NULL) | |
| 12053 | { | |
| 12054 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12055 | bfd_vma toc_off = 0; | |
| 12056 | asection *i; | |
| 12057 | ||
| 12058 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12059 | if (i->has_toc_reloc) | |
| 12060 | { | |
| 12061 | if (toc_off == 0) | |
| 6f20ed8a AM |
12062 | toc_off = htab->sec_info[i->id].toc_off; |
| 12063 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
12064 | return FALSE; |
| 12065 | } | |
| 6683a28d AM |
12066 | |
| 12067 | if (toc_off == 0) | |
| 12068 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 12069 | if (i->makes_toc_func_call) | |
| 12070 | { | |
| 6f20ed8a | 12071 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
12072 | break; |
| 12073 | } | |
| 12074 | ||
| 70cc837d AM |
12075 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 12076 | if (toc_off != 0) | |
| 12077 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 12078 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
12079 | } |
| 12080 | return TRUE; | |
| 12081 | } | |
| 12082 | ||
| 12083 | bfd_boolean | |
| 12084 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 12085 | { | |
| 12086 | return (check_pasted_section (info, ".init") | |
| 12087 | & check_pasted_section (info, ".fini")); | |
| 12088 | } | |
| 12089 | ||
| 721956f4 AM |
12090 | /* See whether we can group stub sections together. Grouping stub |
| 12091 | sections may result in fewer stubs. More importantly, we need to | |
| 12092 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 12093 | .fini output sections respectively, because glibc splits the | |
| 12094 | _init and _fini functions into multiple parts. Putting a stub in | |
| 12095 | the middle of a function is not a good idea. */ | |
| 12096 | ||
| 6f20ed8a AM |
12097 | static bfd_boolean |
| 12098 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
12099 | bfd_size_type stub_group_size, |
| 12100 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 12101 | { |
| 6f20ed8a AM |
12102 | struct ppc_link_hash_table *htab; |
| 12103 | asection *osec; | |
| 7c8fe5c4 AM |
12104 | bfd_boolean suppress_size_errors; |
| 12105 | ||
| 6f20ed8a AM |
12106 | htab = ppc_hash_table (info); |
| 12107 | if (htab == NULL) | |
| 12108 | return FALSE; | |
| 12109 | ||
| 7c8fe5c4 | 12110 | suppress_size_errors = FALSE; |
| 7c8fe5c4 AM |
12111 | if (stub_group_size == 1) |
| 12112 | { | |
| 12113 | /* Default values. */ | |
| 12114 | if (stubs_always_before_branch) | |
| 09f92717 | 12115 | stub_group_size = 0x1e00000; |
| 7c8fe5c4 | 12116 | else |
| 09f92717 | 12117 | stub_group_size = 0x1c00000; |
| 7c8fe5c4 AM |
12118 | suppress_size_errors = TRUE; |
| 12119 | } | |
| 12120 | ||
| 6f20ed8a | 12121 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 12122 | { |
| 6f20ed8a AM |
12123 | asection *tail; |
| 12124 | ||
| 12125 | if (osec->id >= htab->sec_info_arr_size) | |
| 12126 | continue; | |
| 12127 | ||
| 12128 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12129 | while (tail != NULL) |
| 721956f4 | 12130 | { |
| 734b6cf9 AM |
12131 | asection *curr; |
| 12132 | asection *prev; | |
| 12133 | bfd_size_type total; | |
| 12134 | bfd_boolean big_sec; | |
| 12135 | bfd_vma curr_toc; | |
| 6f20ed8a | 12136 | struct map_stub *group; |
| 09f92717 | 12137 | bfd_size_type group_size; |
| 734b6cf9 AM |
12138 | |
| 12139 | curr = tail; | |
| eea6121a | 12140 | total = tail->size; |
| 09f92717 AM |
12141 | group_size = (ppc64_elf_section_data (tail) != NULL |
| 12142 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 12143 | ? stub_group_size >> 10 : stub_group_size); | |
| 12144 | ||
| 12145 | big_sec = total > group_size; | |
| 7c8fe5c4 | 12146 | if (big_sec && !suppress_size_errors) |
| 695344c0 | 12147 | /* xgettext:c-format */ |
| 4eca0228 AM |
12148 | _bfd_error_handler (_("%B section %A exceeds stub group size"), |
| 12149 | tail->owner, tail); | |
| 6f20ed8a | 12150 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12151 | |
| 6f20ed8a | 12152 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12153 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12154 | < (ppc64_elf_section_data (prev) != NULL |
| 12155 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12156 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12157 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12158 | curr = prev; |
| 12159 | ||
| 12160 | /* OK, the size from the start of CURR to the end is less | |
| 09f92717 | 12161 | than group_size and thus can be handled by one stub |
| 734b6cf9 | 12162 | section. (or the tail section is itself larger than |
| 09f92717 AM |
12163 | group_size, in which case we may be toast.) We should |
| 12164 | really be keeping track of the total size of stubs added | |
| 12165 | here, as stubs contribute to the final output section | |
| 12166 | size. That's a little tricky, and this way will only | |
| 12167 | break if stubs added make the total size more than 2^25, | |
| 12168 | ie. for the default stub_group_size, if stubs total more | |
| 12169 | than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12170 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12171 | if (group == NULL) | |
| 12172 | return FALSE; | |
| 12173 | group->link_sec = curr; | |
| 12174 | group->stub_sec = NULL; | |
| a4b6fadd | 12175 | group->needs_save_res = 0; |
| d4aaa2a0 | 12176 | group->tls_get_addr_opt_bctrl = -1u; |
| a4b6fadd AM |
12177 | group->next = htab->group; |
| 12178 | htab->group = group; | |
| 734b6cf9 | 12179 | do |
| 721956f4 | 12180 | { |
| 6f20ed8a | 12181 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12182 | /* Set up this stub group. */ |
| 6f20ed8a | 12183 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12184 | } |
| 734b6cf9 AM |
12185 | while (tail != curr && (tail = prev) != NULL); |
| 12186 | ||
| 09f92717 | 12187 | /* But wait, there's more! Input sections up to group_size |
| 734b6cf9 AM |
12188 | bytes before the stub section can be handled by it too. |
| 12189 | Don't do this if we have a really large section after the | |
| 12190 | stubs, as adding more stubs increases the chance that | |
| 12191 | branches may not reach into the stub section. */ | |
| 12192 | if (!stubs_always_before_branch && !big_sec) | |
| 12193 | { | |
| 12194 | total = 0; | |
| 12195 | while (prev != NULL | |
| 12196 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12197 | < (ppc64_elf_section_data (prev) != NULL |
| 12198 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 09f92717 | 12199 | ? (group_size = stub_group_size >> 10) : group_size)) |
| 6f20ed8a | 12200 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12201 | { |
| 12202 | tail = prev; | |
| 6f20ed8a AM |
12203 | prev = htab->sec_info[tail->id].u.list; |
| 12204 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12205 | } |
| 12206 | } | |
| 12207 | tail = prev; | |
| 721956f4 AM |
12208 | } |
| 12209 | } | |
| 6f20ed8a | 12210 | return TRUE; |
| 721956f4 AM |
12211 | } |
| 12212 | ||
| 58d180e8 AM |
12213 | static const unsigned char glink_eh_frame_cie[] = |
| 12214 | { | |
| 12215 | 0, 0, 0, 16, /* length. */ | |
| 12216 | 0, 0, 0, 0, /* id. */ | |
| 12217 | 1, /* CIE version. */ | |
| 12218 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12219 | 4, /* Code alignment. */ | |
| 12220 | 0x78, /* Data alignment. */ | |
| 12221 | 65, /* RA reg. */ | |
| 12222 | 1, /* Augmentation size. */ | |
| 12223 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| 2e0ce1c8 | 12224 | DW_CFA_def_cfa, 1, 0 /* def_cfa: r1 offset 0. */ |
| 58d180e8 AM |
12225 | }; |
| 12226 | ||
| d4aaa2a0 AM |
12227 | static size_t |
| 12228 | stub_eh_frame_size (struct map_stub *group, size_t align) | |
| 12229 | { | |
| 12230 | size_t this_size = 17; | |
| 12231 | if (group->tls_get_addr_opt_bctrl != -1u) | |
| 12232 | { | |
| 12233 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12234 | if (to_bctrl < 64) | |
| 12235 | this_size += 1; | |
| 12236 | else if (to_bctrl < 256) | |
| 12237 | this_size += 2; | |
| 12238 | else if (to_bctrl < 65536) | |
| 12239 | this_size += 3; | |
| 12240 | else | |
| 12241 | this_size += 5; | |
| 12242 | this_size += 6; | |
| 12243 | } | |
| 12244 | this_size = (this_size + align - 1) & -align; | |
| 12245 | return this_size; | |
| 12246 | } | |
| 12247 | ||
| d969d15f AM |
12248 | /* Stripping output sections is normally done before dynamic section |
| 12249 | symbols have been allocated. This function is called later, and | |
| 12250 | handles cases like htab->brlt which is mapped to its own output | |
| 12251 | section. */ | |
| 12252 | ||
| 12253 | static void | |
| 12254 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12255 | { | |
| 12256 | if (isec->size == 0 | |
| 12257 | && isec->output_section->size == 0 | |
| 53d8967a | 12258 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12259 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12260 | isec->output_section) | |
| 12261 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12262 | { | |
| 12263 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12264 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12265 | info->output_bfd->section_count--; | |
| 12266 | } | |
| 12267 | } | |
| 12268 | ||
| 721956f4 AM |
12269 | /* Determine and set the size of the stub section for a final link. |
| 12270 | ||
| 12271 | The basic idea here is to examine all the relocations looking for | |
| 12272 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12273 | instruction. */ | |
| 12274 | ||
| b34976b6 | 12275 | bfd_boolean |
| e7d1c40c | 12276 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12277 | { |
| 12278 | bfd_size_type stub_group_size; | |
| b34976b6 | 12279 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12280 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12281 | ||
| 4dfe6ac6 NC |
12282 | if (htab == NULL) |
| 12283 | return FALSE; | |
| 12284 | ||
| 0e1862bb | 12285 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12286 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12287 | if (!htab->opd_abi) |
| e7d1c40c AM |
12288 | htab->params->plt_thread_safe = 0; |
| 12289 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12290 | { |
| e2458743 | 12291 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12292 | { |
| 12293 | "pthread_create", | |
| 12294 | /* libstdc++ */ | |
| 12295 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12296 | /* librt */ | |
| 12297 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12298 | "mq_notify", "create_timer", | |
| 12299 | /* libanl */ | |
| 12300 | "getaddrinfo_a", | |
| 12301 | /* libgomp */ | |
| 2300b5a1 | 12302 | "GOMP_parallel", |
| 794e51c0 | 12303 | "GOMP_parallel_start", |
| 2300b5a1 | 12304 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12305 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12306 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12307 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12308 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12309 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12310 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12311 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12312 | "GOMP_parallel_sections", |
| 68ffbac6 | 12313 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12314 | /* libgo */ |
| 12315 | "__go_go", | |
| 794e51c0 AM |
12316 | }; |
| 12317 | unsigned i; | |
| 12318 | ||
| a4b6fadd | 12319 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12320 | { |
| 12321 | struct elf_link_hash_entry *h; | |
| 12322 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12323 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12324 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12325 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12326 | break; |
| 12327 | } | |
| 12328 | } | |
| e7d1c40c AM |
12329 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12330 | if (htab->params->group_size < 0) | |
| 12331 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12332 | else |
| e7d1c40c | 12333 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12334 | |
| 6f20ed8a AM |
12335 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12336 | return FALSE; | |
| 721956f4 | 12337 | |
| c9301e31 AM |
12338 | #define STUB_SHRINK_ITER 20 |
| 12339 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12340 | exit on a stub section shrinking. This is to break out of a | |
| 12341 | pathological case where adding stubs on one iteration decreases | |
| 12342 | section gaps (perhaps due to alignment), which then requires | |
| 12343 | fewer or smaller stubs on the next iteration. */ | |
| 12344 | ||
| 721956f4 AM |
12345 | while (1) |
| 12346 | { | |
| 12347 | bfd *input_bfd; | |
| 12348 | unsigned int bfd_indx; | |
| a4b6fadd | 12349 | struct map_stub *group; |
| 721956f4 AM |
12350 | |
| 12351 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12352 | |
| 12353 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12354 | input_bfd != NULL; | |
| c72f2fb2 | 12355 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12356 | { |
| 12357 | Elf_Internal_Shdr *symtab_hdr; | |
| 12358 | asection *section; | |
| 6cdc0ccc | 12359 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12360 | |
| 0c8d6e5c | 12361 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12362 | continue; |
| 12363 | ||
| 721956f4 | 12364 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12365 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12366 | if (symtab_hdr->sh_info == 0) |
| 12367 | continue; | |
| 12368 | ||
| 721956f4 AM |
12369 | /* Walk over each section attached to the input bfd. */ |
| 12370 | for (section = input_bfd->sections; | |
| 12371 | section != NULL; | |
| 12372 | section = section->next) | |
| 12373 | { | |
| 721956f4 | 12374 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12375 | |
| 12376 | /* If there aren't any relocs, then there's nothing more | |
| 12377 | to do. */ | |
| 12378 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12379 | || (section->flags & SEC_ALLOC) == 0 |
| 12380 | || (section->flags & SEC_LOAD) == 0 | |
| 12381 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12382 | || section->reloc_count == 0) |
| 12383 | continue; | |
| 12384 | ||
| 12385 | /* If this section is a link-once section that will be | |
| 12386 | discarded, then don't create any stubs. */ | |
| 12387 | if (section->output_section == NULL | |
| 927be08e | 12388 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12389 | continue; |
| 12390 | ||
| 1e2f5b6e AM |
12391 | /* Get the relocs. */ |
| 12392 | internal_relocs | |
| 4ce794b7 | 12393 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12394 | info->keep_memory); |
| 721956f4 | 12395 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12396 | goto error_ret_free_local; |
| 721956f4 AM |
12397 | |
| 12398 | /* Now examine each relocation. */ | |
| 12399 | irela = internal_relocs; | |
| 12400 | irelaend = irela + section->reloc_count; | |
| 12401 | for (; irela < irelaend; irela++) | |
| 12402 | { | |
| 4ce794b7 AM |
12403 | enum elf_ppc64_reloc_type r_type; |
| 12404 | unsigned int r_indx; | |
| 721956f4 AM |
12405 | enum ppc_stub_type stub_type; |
| 12406 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12407 | asection *sym_sec, *code_sec; |
| e054468f | 12408 | bfd_vma sym_value, code_value; |
| 721956f4 | 12409 | bfd_vma destination; |
| 6911b7dc | 12410 | unsigned long local_off; |
| 8843416a | 12411 | bfd_boolean ok_dest; |
| 721956f4 | 12412 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12413 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12414 | struct elf_link_hash_entry *h; |
| 12415 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12416 | char *stub_name; |
| 12417 | const asection *id_sec; | |
| 74f0fb50 | 12418 | struct _opd_sec_data *opd; |
| e054468f | 12419 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12420 | |
| 12421 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12422 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12423 | ||
| 4ce794b7 | 12424 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12425 | { |
| 12426 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12427 | goto error_ret_free_internal; |
| 721956f4 AM |
12428 | } |
| 12429 | ||
| 12430 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12431 | if (r_type != R_PPC64_REL24 |
| 12432 | && r_type != R_PPC64_REL14 | |
| 12433 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12434 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12435 | continue; |
| 12436 | ||
| 12437 | /* Now determine the call target, its name, value, | |
| 12438 | section. */ | |
| 411e1bfb AM |
12439 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12440 | r_indx, input_bfd)) | |
| 12441 | goto error_ret_free_internal; | |
| 12442 | hash = (struct ppc_link_hash_entry *) h; | |
| 12443 | ||
| 8843416a | 12444 | ok_dest = FALSE; |
| 8387904d | 12445 | fdh = NULL; |
| 7fe2b9a6 | 12446 | sym_value = 0; |
| 411e1bfb | 12447 | if (hash == NULL) |
| 721956f4 | 12448 | { |
| 411e1bfb | 12449 | sym_value = sym->st_value; |
| c27b8c2a AM |
12450 | if (sym_sec != NULL |
| 12451 | && sym_sec->output_section != NULL) | |
| 12452 | ok_dest = TRUE; | |
| 721956f4 | 12453 | } |
| 7fe2b9a6 AM |
12454 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12455 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12456 | { | |
| 12457 | sym_value = hash->elf.root.u.def.value; | |
| 12458 | if (sym_sec->output_section != NULL) | |
| 12459 | ok_dest = TRUE; | |
| 12460 | } | |
| 12461 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12462 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12463 | { |
| 99877b66 | 12464 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12465 | use the func descriptor sym instead if it is |
| 12466 | defined. */ | |
| ceb1f1ef | 12467 | if (hash->elf.root.root.string[0] == '.' |
| 8c5b4e52 | 12468 | && hash->oh != NULL) |
| 8387904d | 12469 | { |
| 8c5b4e52 | 12470 | fdh = ppc_follow_link (hash->oh); |
| 8387904d AM |
12471 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12472 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12473 | { | |
| 12474 | sym_sec = fdh->elf.root.u.def.section; | |
| 12475 | sym_value = fdh->elf.root.u.def.value; | |
| 12476 | if (sym_sec->output_section != NULL) | |
| 12477 | ok_dest = TRUE; | |
| 12478 | } | |
| 99877b66 AM |
12479 | else |
| 12480 | fdh = NULL; | |
| 8387904d | 12481 | } |
| 7fe2b9a6 AM |
12482 | } |
| 12483 | else | |
| 12484 | { | |
| 12485 | bfd_set_error (bfd_error_bad_value); | |
| 12486 | goto error_ret_free_internal; | |
| 721956f4 AM |
12487 | } |
| 12488 | ||
| 8843416a | 12489 | destination = 0; |
| 6911b7dc | 12490 | local_off = 0; |
| 8843416a AM |
12491 | if (ok_dest) |
| 12492 | { | |
| 12493 | sym_value += irela->r_addend; | |
| 12494 | destination = (sym_value | |
| 12495 | + sym_sec->output_offset | |
| 12496 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12497 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12498 | ? hash->elf.other | |
| 12499 | : sym->st_other); | |
| 8843416a AM |
12500 | } |
| 12501 | ||
| 8387904d | 12502 | code_sec = sym_sec; |
| e054468f | 12503 | code_value = sym_value; |
| 74f0fb50 AM |
12504 | opd = get_opd_info (sym_sec); |
| 12505 | if (opd != NULL) | |
| 8387904d AM |
12506 | { |
| 12507 | bfd_vma dest; | |
| 12508 | ||
| 74f0fb50 | 12509 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12510 | { |
| 51aecdc5 | 12511 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12512 | if (adjust == -1) |
| 12513 | continue; | |
| e054468f | 12514 | code_value += adjust; |
| 8387904d AM |
12515 | sym_value += adjust; |
| 12516 | } | |
| 12517 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12518 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12519 | if (dest != (bfd_vma) -1) |
| 12520 | { | |
| 12521 | destination = dest; | |
| 12522 | if (fdh != NULL) | |
| 12523 | { | |
| 12524 | /* Fixup old ABI sym to point at code | |
| 12525 | entry. */ | |
| 99877b66 | 12526 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12527 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12528 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12529 | } |
| 12530 | } | |
| 12531 | } | |
| 12532 | ||
| 721956f4 | 12533 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12534 | plt_ent = NULL; |
| 721956f4 | 12535 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12536 | &plt_ent, destination, |
| 12537 | local_off); | |
| ad8e1ba5 AM |
12538 | |
| 12539 | if (stub_type != ppc_stub_plt_call) | |
| 12540 | { | |
| 12541 | /* Check whether we need a TOC adjusting stub. | |
| 12542 | Since the linker pastes together pieces from | |
| 12543 | different object files when creating the | |
| 12544 | _init and _fini functions, it may be that a | |
| 12545 | call to what looks like a local sym is in | |
| 12546 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12547 | if (code_sec != NULL |
| 12548 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12549 | && (htab->sec_info[code_sec->id].toc_off |
| 12550 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12551 | && (code_sec->has_toc_reloc |
| 12552 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12553 | stub_type = ppc_stub_long_branch_r2off; |
| 12554 | } | |
| 12555 | ||
| 721956f4 AM |
12556 | if (stub_type == ppc_stub_none) |
| 12557 | continue; | |
| 12558 | ||
| 411e1bfb AM |
12559 | /* __tls_get_addr calls might be eliminated. */ |
| 12560 | if (stub_type != ppc_stub_plt_call | |
| 12561 | && hash != NULL | |
| 8387904d AM |
12562 | && (hash == htab->tls_get_addr |
| 12563 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12564 | && section->has_tls_reloc |
| 12565 | && irela != internal_relocs) | |
| 12566 | { | |
| 12567 | /* Get tls info. */ | |
| f961d9dd | 12568 | unsigned char *tls_mask; |
| 411e1bfb | 12569 | |
| 3a71aa26 | 12570 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12571 | irela - 1, input_bfd)) |
| 12572 | goto error_ret_free_internal; | |
| e7b938ca | 12573 | if (*tls_mask != 0) |
| 411e1bfb AM |
12574 | continue; |
| 12575 | } | |
| 12576 | ||
| f378ab09 | 12577 | if (stub_type == ppc_stub_plt_call) |
| 794e51c0 | 12578 | { |
| 6e1816be AM |
12579 | if (!htab->opd_abi |
| 12580 | && htab->params->plt_localentry0 != 0 | |
| 12581 | && is_elfv2_localentry0 (&hash->elf)) | |
| 12582 | htab->has_plt_localentry0 = 1; | |
| 12583 | else if (irela + 1 < irelaend | |
| 12584 | && irela[1].r_offset == irela->r_offset + 4 | |
| 12585 | && (ELF64_R_TYPE (irela[1].r_info) | |
| 12586 | == R_PPC64_TOCSAVE)) | |
| f378ab09 AM |
12587 | { |
| 12588 | if (!tocsave_find (htab, INSERT, | |
| 12589 | &local_syms, irela + 1, input_bfd)) | |
| 12590 | goto error_ret_free_internal; | |
| 12591 | } | |
| f378ab09 AM |
12592 | else |
| 12593 | stub_type = ppc_stub_plt_call_r2save; | |
| 794e51c0 | 12594 | } |
| 3b421ab3 | 12595 | |
| 721956f4 | 12596 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12597 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12598 | |
| 12599 | /* Get the name of this stub. */ | |
| 12600 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12601 | if (!stub_name) | |
| 12602 | goto error_ret_free_internal; | |
| 12603 | ||
| 12604 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12605 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12606 | if (stub_entry != NULL) |
| 12607 | { | |
| 12608 | /* The proper stub has already been created. */ | |
| 12609 | free (stub_name); | |
| 794e51c0 AM |
12610 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12611 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12612 | continue; |
| 12613 | } | |
| 12614 | ||
| 25f53a85 | 12615 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12616 | if (stub_entry == NULL) |
| 12617 | { | |
| 12618 | free (stub_name); | |
| 6cdc0ccc AM |
12619 | error_ret_free_internal: |
| 12620 | if (elf_section_data (section)->relocs == NULL) | |
| 12621 | free (internal_relocs); | |
| 12622 | error_ret_free_local: | |
| 12623 | if (local_syms != NULL | |
| 12624 | && (symtab_hdr->contents | |
| 12625 | != (unsigned char *) local_syms)) | |
| 12626 | free (local_syms); | |
| b34976b6 | 12627 | return FALSE; |
| 721956f4 AM |
12628 | } |
| 12629 | ||
| ad8e1ba5 | 12630 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12631 | if (stub_type != ppc_stub_plt_call |
| 12632 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12633 | { |
| 12634 | stub_entry->target_value = code_value; | |
| 12635 | stub_entry->target_section = code_sec; | |
| 12636 | } | |
| 12637 | else | |
| 12638 | { | |
| 12639 | stub_entry->target_value = sym_value; | |
| 12640 | stub_entry->target_section = sym_sec; | |
| 12641 | } | |
| 721956f4 | 12642 | stub_entry->h = hash; |
| e054468f | 12643 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12644 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12645 | |
| 12646 | if (stub_entry->h != NULL) | |
| 12647 | htab->stub_globals += 1; | |
| 721956f4 AM |
12648 | } |
| 12649 | ||
| 12650 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12651 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12652 | free (internal_relocs); |
| 721956f4 | 12653 | } |
| 6cdc0ccc AM |
12654 | |
| 12655 | if (local_syms != NULL | |
| 12656 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12657 | { | |
| 12658 | if (!info->keep_memory) | |
| 12659 | free (local_syms); | |
| 12660 | else | |
| 12661 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12662 | } | |
| 721956f4 AM |
12663 | } |
| 12664 | ||
| 5c3dead3 | 12665 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12666 | stub sections. */ |
| d4aaa2a0 AM |
12667 | for (group = htab->group; group != NULL; group = group->next) |
| 12668 | if (group->stub_sec != NULL) | |
| ee75fd95 | 12669 | { |
| d4aaa2a0 AM |
12670 | asection *stub_sec = group->stub_sec; |
| 12671 | ||
| ea3d7d1c AM |
12672 | if (htab->stub_iteration <= STUB_SHRINK_ITER |
| 12673 | || stub_sec->rawsize < stub_sec->size) | |
| 12674 | /* Past STUB_SHRINK_ITER, rawsize is the max size seen. */ | |
| 12675 | stub_sec->rawsize = stub_sec->size; | |
| ee75fd95 AM |
12676 | stub_sec->size = 0; |
| 12677 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12678 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12679 | } |
| eea6121a AM |
12680 | |
| 12681 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12682 | htab->brlt->reloc_count = 0; |
| 12683 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12684 | if (htab->relbrlt != NULL) |
| eea6121a | 12685 | htab->relbrlt->size = 0; |
| 721956f4 | 12686 | |
| 63bc6f6c | 12687 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12688 | |
| a4b6fadd AM |
12689 | for (group = htab->group; group != NULL; group = group->next) |
| 12690 | if (group->needs_save_res) | |
| 12691 | group->stub_sec->size += htab->sfpr->size; | |
| 12692 | ||
| 176a0d42 AM |
12693 | if (info->emitrelocations |
| 12694 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12695 | { | |
| 12696 | htab->glink->reloc_count = 1; | |
| 12697 | htab->glink->flags |= SEC_RELOC; | |
| 12698 | } | |
| 12699 | ||
| 58d180e8 AM |
12700 | if (htab->glink_eh_frame != NULL |
| 12701 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12702 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12703 | { |
| 2e0ce1c8 | 12704 | size_t size = 0, align = 4; |
| 58d180e8 | 12705 | |
| d4aaa2a0 AM |
12706 | for (group = htab->group; group != NULL; group = group->next) |
| 12707 | if (group->stub_sec != NULL) | |
| 12708 | size += stub_eh_frame_size (group, align); | |
| 58d180e8 | 12709 | if (htab->glink != NULL && htab->glink->size != 0) |
| 2e0ce1c8 | 12710 | size += (24 + align - 1) & -align; |
| 58d180e8 | 12711 | if (size != 0) |
| 2e0ce1c8 AM |
12712 | size += (sizeof (glink_eh_frame_cie) + align - 1) & -align; |
| 12713 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; | |
| 12714 | size = (size + align - 1) & -align; | |
| 58d180e8 AM |
12715 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12716 | htab->glink_eh_frame->size = size; | |
| 12717 | } | |
| 12718 | ||
| e7d1c40c | 12719 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
12720 | for (group = htab->group; group != NULL; group = group->next) |
| 12721 | if (group->stub_sec != NULL) | |
| 12722 | group->stub_sec->size = ((group->stub_sec->size | |
| 12723 | + (1 << htab->params->plt_stub_align) - 1) | |
| 12724 | & -(1 << htab->params->plt_stub_align)); | |
| 12725 | ||
| 12726 | for (group = htab->group; group != NULL; group = group->next) | |
| 12727 | if (group->stub_sec != NULL | |
| 12728 | && group->stub_sec->rawsize != group->stub_sec->size | |
| c9301e31 | 12729 | && (htab->stub_iteration <= STUB_SHRINK_ITER |
| d4aaa2a0 | 12730 | || group->stub_sec->rawsize < group->stub_sec->size)) |
| 5c3dead3 AM |
12731 | break; |
| 12732 | ||
| d4aaa2a0 | 12733 | if (group == NULL |
| 58d180e8 AM |
12734 | && (htab->glink_eh_frame == NULL |
| 12735 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12736 | break; |
| 12737 | ||
| 721956f4 | 12738 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12739 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12740 | } |
| 12741 | ||
| da44f4e5 AM |
12742 | if (htab->glink_eh_frame != NULL |
| 12743 | && htab->glink_eh_frame->size != 0) | |
| 12744 | { | |
| 12745 | bfd_vma val; | |
| 12746 | bfd_byte *p, *last_fde; | |
| 12747 | size_t last_fde_len, size, align, pad; | |
| d4aaa2a0 | 12748 | struct map_stub *group; |
| da44f4e5 AM |
12749 | |
| 12750 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12751 | if (p == NULL) | |
| 12752 | return FALSE; | |
| 12753 | htab->glink_eh_frame->contents = p; | |
| 12754 | last_fde = p; | |
| 2e0ce1c8 | 12755 | align = 4; |
| da44f4e5 AM |
12756 | |
| 12757 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12758 | /* CIE length (rewrite in case little-endian). */ | |
| 2e0ce1c8 | 12759 | last_fde_len = ((sizeof (glink_eh_frame_cie) + align - 1) & -align) - 4; |
| da44f4e5 | 12760 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| 2e0ce1c8 | 12761 | p += last_fde_len + 4; |
| da44f4e5 | 12762 | |
| d4aaa2a0 AM |
12763 | for (group = htab->group; group != NULL; group = group->next) |
| 12764 | if (group->stub_sec != NULL) | |
| da44f4e5 AM |
12765 | { |
| 12766 | last_fde = p; | |
| d4aaa2a0 | 12767 | last_fde_len = stub_eh_frame_size (group, align) - 4; |
| da44f4e5 | 12768 | /* FDE length. */ |
| 2e0ce1c8 | 12769 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12770 | p += 4; |
| 12771 | /* CIE pointer. */ | |
| 12772 | val = p - htab->glink_eh_frame->contents; | |
| 12773 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12774 | p += 4; | |
| 12775 | /* Offset to stub section, written later. */ | |
| 12776 | p += 4; | |
| 12777 | /* stub section size. */ | |
| d4aaa2a0 | 12778 | bfd_put_32 (htab->elf.dynobj, group->stub_sec->size, p); |
| da44f4e5 AM |
12779 | p += 4; |
| 12780 | /* Augmentation. */ | |
| 12781 | p += 1; | |
| d4aaa2a0 AM |
12782 | if (group->tls_get_addr_opt_bctrl != -1u) |
| 12783 | { | |
| 12784 | unsigned int to_bctrl = group->tls_get_addr_opt_bctrl / 4; | |
| 12785 | ||
| 12786 | /* This FDE needs more than just the default. | |
| 12787 | Describe __tls_get_addr_opt stub LR. */ | |
| 12788 | if (to_bctrl < 64) | |
| 12789 | *p++ = DW_CFA_advance_loc + to_bctrl; | |
| 12790 | else if (to_bctrl < 256) | |
| 12791 | { | |
| 12792 | *p++ = DW_CFA_advance_loc1; | |
| 12793 | *p++ = to_bctrl; | |
| 12794 | } | |
| 12795 | else if (to_bctrl < 65536) | |
| 12796 | { | |
| 12797 | *p++ = DW_CFA_advance_loc2; | |
| 12798 | bfd_put_16 (htab->elf.dynobj, to_bctrl, p); | |
| 12799 | p += 2; | |
| 12800 | } | |
| 12801 | else | |
| 12802 | { | |
| 12803 | *p++ = DW_CFA_advance_loc4; | |
| 12804 | bfd_put_32 (htab->elf.dynobj, to_bctrl, p); | |
| 12805 | p += 4; | |
| 12806 | } | |
| 12807 | *p++ = DW_CFA_offset_extended_sf; | |
| 12808 | *p++ = 65; | |
| 12809 | *p++ = -(STK_LINKER (htab) / 8) & 0x7f; | |
| 12810 | *p++ = DW_CFA_advance_loc + 4; | |
| 12811 | *p++ = DW_CFA_restore_extended; | |
| 12812 | *p++ = 65; | |
| 12813 | } | |
| da44f4e5 | 12814 | /* Pad. */ |
| d4aaa2a0 | 12815 | p = last_fde + last_fde_len + 4; |
| da44f4e5 AM |
12816 | } |
| 12817 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12818 | { | |
| 12819 | last_fde = p; | |
| 2e0ce1c8 | 12820 | last_fde_len = ((24 + align - 1) & -align) - 4; |
| da44f4e5 | 12821 | /* FDE length. */ |
| 2e0ce1c8 | 12822 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); |
| da44f4e5 AM |
12823 | p += 4; |
| 12824 | /* CIE pointer. */ | |
| 12825 | val = p - htab->glink_eh_frame->contents; | |
| 12826 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12827 | p += 4; | |
| 12828 | /* Offset to .glink, written later. */ | |
| 12829 | p += 4; | |
| 12830 | /* .glink size. */ | |
| 12831 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12832 | p += 4; | |
| 12833 | /* Augmentation. */ | |
| 12834 | p += 1; | |
| 12835 | ||
| 12836 | *p++ = DW_CFA_advance_loc + 1; | |
| 12837 | *p++ = DW_CFA_register; | |
| 12838 | *p++ = 65; | |
| 9f08fa5c | 12839 | *p++ = htab->opd_abi ? 12 : 0; |
| 15a3a14f | 12840 | *p++ = DW_CFA_advance_loc + (htab->opd_abi ? 5 : 7); |
| da44f4e5 AM |
12841 | *p++ = DW_CFA_restore_extended; |
| 12842 | *p++ = 65; | |
| 2e0ce1c8 | 12843 | p += ((24 + align - 1) & -align) - 24; |
| da44f4e5 AM |
12844 | } |
| 12845 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12846 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12847 | zero padding will be seen as a terminator. */ | |
| 2e0ce1c8 | 12848 | align = 1ul << htab->glink_eh_frame->output_section->alignment_power; |
| da44f4e5 | 12849 | size = p - htab->glink_eh_frame->contents; |
| 2e0ce1c8 | 12850 | pad = ((size + align - 1) & -align) - size; |
| da44f4e5 AM |
12851 | htab->glink_eh_frame->size = size + pad; |
| 12852 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12853 | } | |
| 12854 | ||
| d969d15f AM |
12855 | maybe_strip_output (info, htab->brlt); |
| 12856 | if (htab->glink_eh_frame != NULL) | |
| 12857 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12858 | |
| b34976b6 | 12859 | return TRUE; |
| 721956f4 AM |
12860 | } |
| 12861 | ||
| 12862 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12863 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12864 | |
| 805fc799 | 12865 | bfd_vma |
| 1c865ab2 | 12866 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12867 | { |
| 805fc799 | 12868 | asection *s; |
| a27e685f | 12869 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12870 | |
| 43417696 AM |
12871 | if (info != NULL) |
| 12872 | { | |
| 12873 | struct elf_link_hash_entry *h; | |
| 12874 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12875 | ||
| 12876 | if (is_elf_hash_table (htab) | |
| 12877 | && htab->hgot != NULL) | |
| 12878 | h = htab->hgot; | |
| 12879 | else | |
| 12880 | { | |
| 12881 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12882 | if (is_elf_hash_table (htab)) | |
| 12883 | htab->hgot = h; | |
| 12884 | } | |
| 12885 | if (h != NULL | |
| 12886 | && h->root.type == bfd_link_hash_defined | |
| 12887 | && !h->root.linker_def | |
| 12888 | && (!is_elf_hash_table (htab) | |
| 12889 | || h->def_regular)) | |
| 12890 | { | |
| 12891 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12892 | + h->root.u.def.section->output_offset | |
| 12893 | + h->root.u.def.section->output_section->vma); | |
| 12894 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12895 | return TOCstart; | |
| 12896 | } | |
| 12897 | } | |
| 12898 | ||
| 805fc799 AM |
12899 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12900 | order. The TOC starts where the first of these sections starts. */ | |
| 12901 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12902 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12903 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12904 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12905 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12906 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12907 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12908 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12909 | { |
| 12910 | /* This may happen for | |
| 12911 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12912 | .toc directive | |
| 12913 | o bad linker script | |
| 12914 | o --gc-sections and empty TOC sections | |
| 12915 | ||
| 12916 | FIXME: Warn user? */ | |
| 12917 | ||
| 12918 | /* Look for a likely section. We probably won't even be | |
| 12919 | using TOCstart. */ | |
| 12920 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12921 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12922 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12923 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12924 | break; | |
| 721956f4 | 12925 | if (s == NULL) |
| 805fc799 | 12926 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12927 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12928 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12929 | break; | |
| 721956f4 | 12930 | if (s == NULL) |
| 805fc799 | 12931 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12932 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12933 | == SEC_ALLOC) | |
| 805fc799 | 12934 | break; |
| 721956f4 | 12935 | if (s == NULL) |
| 805fc799 | 12936 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12937 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12938 | break; |
| 12939 | } | |
| 721956f4 | 12940 | |
| 805fc799 AM |
12941 | TOCstart = 0; |
| 12942 | if (s != NULL) | |
| 12943 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12944 | |
| a27e685f AM |
12945 | /* Force alignment. */ |
| 12946 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12947 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12948 | _bfd_set_gp_value (obfd, TOCstart); |
| 12949 | ||
| 810d4e75 | 12950 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12951 | { |
| 12952 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12953 | ||
| 810d4e75 AM |
12954 | if (htab != NULL) |
| 12955 | { | |
| 12956 | if (htab->elf.hgot != NULL) | |
| 12957 | { | |
| a27e685f | 12958 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12959 | htab->elf.hgot->root.u.def.section = s; |
| 12960 | } | |
| 12961 | } | |
| 12962 | else | |
| 1c865ab2 | 12963 | { |
| 810d4e75 AM |
12964 | struct bfd_link_hash_entry *bh = NULL; |
| 12965 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12966 | s, TOC_BASE_OFF - adjust, |
| 12967 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12968 | } |
| 12969 | } | |
| 805fc799 | 12970 | return TOCstart; |
| 721956f4 AM |
12971 | } |
| 12972 | ||
| a345bc8d AM |
12973 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12974 | write out any global entry stubs. */ | |
| 12975 | ||
| 12976 | static bfd_boolean | |
| 12977 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12978 | { | |
| 12979 | struct bfd_link_info *info; | |
| 12980 | struct ppc_link_hash_table *htab; | |
| 12981 | struct plt_entry *pent; | |
| 12982 | asection *s; | |
| 12983 | ||
| 12984 | if (h->root.type == bfd_link_hash_indirect) | |
| 12985 | return TRUE; | |
| 12986 | ||
| 12987 | if (!h->pointer_equality_needed) | |
| 12988 | return TRUE; | |
| 12989 | ||
| 12990 | if (h->def_regular) | |
| 12991 | return TRUE; | |
| 12992 | ||
| 12993 | info = inf; | |
| 12994 | htab = ppc_hash_table (info); | |
| 12995 | if (htab == NULL) | |
| 12996 | return FALSE; | |
| 12997 | ||
| 12998 | s = htab->glink; | |
| 12999 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 13000 | if (pent->plt.offset != (bfd_vma) -1 | |
| 13001 | && pent->addend == 0) | |
| 13002 | { | |
| 13003 | bfd_byte *p; | |
| 13004 | asection *plt; | |
| 13005 | bfd_vma off; | |
| 13006 | ||
| a345bc8d | 13007 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 13008 | plt = htab->elf.splt; |
| a345bc8d AM |
13009 | if (!htab->elf.dynamic_sections_created |
| 13010 | || h->dynindx == -1) | |
| 33e44f2e | 13011 | plt = htab->elf.iplt; |
| a345bc8d AM |
13012 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 13013 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 13014 | ||
| 13015 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 13016 | { | |
| 13017 | info->callbacks->einfo | |
| 13018 | (_("%P: linkage table error against `%T'\n"), | |
| 13019 | h->root.root.string); | |
| 13020 | bfd_set_error (bfd_error_bad_value); | |
| 13021 | htab->stub_error = TRUE; | |
| 13022 | } | |
| 13023 | ||
| 7341d5e2 AM |
13024 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 13025 | if (htab->params->emit_stub_syms) | |
| 13026 | { | |
| 13027 | size_t len = strlen (h->root.root.string); | |
| 13028 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 13029 | ||
| 13030 | if (name == NULL) | |
| 13031 | return FALSE; | |
| 13032 | ||
| 13033 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 13034 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 13035 | if (h == NULL) | |
| 13036 | return FALSE; | |
| 13037 | if (h->root.type == bfd_link_hash_new) | |
| 13038 | { | |
| 13039 | h->root.type = bfd_link_hash_defined; | |
| 13040 | h->root.u.def.section = s; | |
| 13041 | h->root.u.def.value = p - s->contents; | |
| 13042 | h->ref_regular = 1; | |
| 13043 | h->def_regular = 1; | |
| 13044 | h->ref_regular_nonweak = 1; | |
| 13045 | h->forced_local = 1; | |
| 13046 | h->non_elf = 0; | |
| 2ec55de3 | 13047 | h->root.linker_def = 1; |
| 7341d5e2 AM |
13048 | } |
| 13049 | } | |
| 13050 | ||
| a345bc8d AM |
13051 | if (PPC_HA (off) != 0) |
| 13052 | { | |
| 13053 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 13054 | p += 4; | |
| 13055 | } | |
| 13056 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 13057 | p += 4; | |
| 13058 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 13059 | p += 4; | |
| 13060 | bfd_put_32 (s->owner, BCTR, p); | |
| 13061 | break; | |
| 13062 | } | |
| 13063 | return TRUE; | |
| 13064 | } | |
| 13065 | ||
| 721956f4 AM |
13066 | /* Build all the stubs associated with the current output file. |
| 13067 | The stubs are kept in a hash table attached to the main linker | |
| 13068 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 13069 | ||
| b34976b6 | 13070 | bfd_boolean |
| e7d1c40c | 13071 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 13072 | char **stats) |
| 5d1634d7 AM |
13073 | { |
| 13074 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 13075 | struct map_stub *group; |
| 721956f4 | 13076 | asection *stub_sec; |
| 5d1634d7 | 13077 | bfd_byte *p; |
| e717da7e | 13078 | int stub_sec_count = 0; |
| 5d1634d7 | 13079 | |
| 4dfe6ac6 NC |
13080 | if (htab == NULL) |
| 13081 | return FALSE; | |
| 13082 | ||
| eea6121a | 13083 | /* Allocate memory to hold the linker stubs. */ |
| d4aaa2a0 AM |
13084 | for (group = htab->group; group != NULL; group = group->next) |
| 13085 | if ((stub_sec = group->stub_sec) != NULL | |
| eea6121a | 13086 | && stub_sec->size != 0) |
| e717da7e | 13087 | { |
| e7d1c40c | 13088 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
13089 | if (stub_sec->contents == NULL) |
| 13090 | return FALSE; | |
| eea6121a | 13091 | stub_sec->size = 0; |
| e717da7e | 13092 | } |
| 5d1634d7 | 13093 | |
| 23eb7e01 | 13094 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 13095 | { |
| 9f951329 | 13096 | unsigned int indx; |
| ad8e1ba5 | 13097 | bfd_vma plt0; |
| 9f951329 | 13098 | |
| 721956f4 | 13099 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 13100 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
13101 | { |
| 13102 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
13103 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 13104 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
13105 | if (h == NULL) |
| 13106 | return FALSE; | |
| 13107 | if (h->root.type == bfd_link_hash_new) | |
| 13108 | { | |
| 13109 | h->root.type = bfd_link_hash_defined; | |
| 13110 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 13111 | h->root.u.def.value = 8; |
| f5385ebf AM |
13112 | h->ref_regular = 1; |
| 13113 | h->def_regular = 1; | |
| 13114 | h->ref_regular_nonweak = 1; | |
| 13115 | h->forced_local = 1; | |
| 13116 | h->non_elf = 0; | |
| 2ec55de3 | 13117 | h->root.linker_def = 1; |
| 97b639ba AM |
13118 | } |
| 13119 | } | |
| 33e44f2e AM |
13120 | plt0 = (htab->elf.splt->output_section->vma |
| 13121 | + htab->elf.splt->output_offset | |
| 13122 | - 16); | |
| 176a0d42 AM |
13123 | if (info->emitrelocations) |
| 13124 | { | |
| 13125 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 13126 | if (r == NULL) | |
| 13127 | return FALSE; | |
| 13128 | r->r_offset = (htab->glink->output_offset | |
| 13129 | + htab->glink->output_section->vma); | |
| 13130 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 13131 | r->r_addend = plt0; | |
| 13132 | } | |
| 4ce794b7 | 13133 | p = htab->glink->contents; |
| 176a0d42 | 13134 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
13135 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 13136 | p += 8; | |
| b9e5796b AM |
13137 | if (htab->opd_abi) |
| 13138 | { | |
| 13139 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 13140 | p += 4; | |
| 13141 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13142 | p += 4; | |
| 13143 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13144 | p += 4; | |
| 13145 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 13146 | p += 4; | |
| 13147 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 13148 | p += 4; | |
| 13149 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13150 | p += 4; | |
| 13151 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13152 | p += 4; | |
| 13153 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 13154 | p += 4; | |
| 13155 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13156 | p += 4; | |
| 13157 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 13158 | p += 4; | |
| 13159 | } | |
| 13160 | else | |
| 13161 | { | |
| 13162 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 13163 | p += 4; | |
| 13164 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 13165 | p += 4; | |
| 13166 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 13167 | p += 4; | |
| f378ab09 AM |
13168 | bfd_put_32 (htab->glink->owner, STD_R2_0R1 + 24, p); |
| 13169 | p += 4; | |
| b9e5796b AM |
13170 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); |
| 13171 | p += 4; | |
| 13172 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 13173 | p += 4; | |
| 13174 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 13175 | p += 4; | |
| 13176 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 13177 | p += 4; | |
| 13178 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 13179 | p += 4; | |
| 13180 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 13181 | p += 4; | |
| 13182 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13183 | p += 4; | |
| 13184 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13185 | p += 4; | |
| 13186 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13187 | p += 4; | |
| 13188 | } | |
| 4ce794b7 | 13189 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 13190 | p += 4; |
| ee4bf8d2 AM |
13191 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 13192 | { | |
| 13193 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 13194 | p += 4; | |
| 13195 | } | |
| ad8e1ba5 | 13196 | |
| 9f951329 AM |
13197 | /* Build the .glink lazy link call stubs. */ |
| 13198 | indx = 0; | |
| a345bc8d | 13199 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 13200 | { |
| b9e5796b | 13201 | if (htab->opd_abi) |
| 9f951329 | 13202 | { |
| b9e5796b AM |
13203 | if (indx < 0x8000) |
| 13204 | { | |
| 13205 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13206 | p += 4; | |
| 13207 | } | |
| 13208 | else | |
| 13209 | { | |
| 13210 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13211 | p += 4; | |
| 13212 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13213 | p); | |
| 13214 | p += 4; | |
| 13215 | } | |
| 9f951329 | 13216 | } |
| 4ce794b7 | 13217 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13218 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13219 | indx++; |
| 9f951329 AM |
13220 | p += 4; |
| 13221 | } | |
| a345bc8d AM |
13222 | |
| 13223 | /* Build .glink global entry stubs. */ | |
| 13224 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13225 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13226 | } |
| 5d1634d7 | 13227 | |
| 7341d5e2 | 13228 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13229 | { |
| 4ce794b7 | 13230 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13231 | htab->brlt->size); |
| 4ce794b7 | 13232 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13233 | return FALSE; |
| 721956f4 | 13234 | } |
| ee75fd95 | 13235 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13236 | { |
| 13237 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13238 | htab->relbrlt->size); |
| 63bc6f6c AM |
13239 | if (htab->relbrlt->contents == NULL) |
| 13240 | return FALSE; | |
| 13241 | } | |
| 5d1634d7 | 13242 | |
| 721956f4 AM |
13243 | /* Build the stubs as directed by the stub hash table. */ |
| 13244 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13245 | |
| a4b6fadd AM |
13246 | for (group = htab->group; group != NULL; group = group->next) |
| 13247 | if (group->needs_save_res) | |
| 13248 | { | |
| 13249 | stub_sec = group->stub_sec; | |
| 13250 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13251 | htab->sfpr->size); | |
| 13252 | if (htab->params->emit_stub_syms) | |
| 13253 | { | |
| 13254 | unsigned int i; | |
| 13255 | ||
| 13256 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13257 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13258 | return FALSE; | |
| 13259 | } | |
| 13260 | stub_sec->size += htab->sfpr->size; | |
| 13261 | } | |
| 13262 | ||
| aa8a7074 AM |
13263 | if (htab->relbrlt != NULL) |
| 13264 | htab->relbrlt->reloc_count = 0; | |
| 13265 | ||
| e7d1c40c | 13266 | if (htab->params->plt_stub_align != 0) |
| d4aaa2a0 AM |
13267 | for (group = htab->group; group != NULL; group = group->next) |
| 13268 | if ((stub_sec = group->stub_sec) != NULL) | |
| e7d1c40c AM |
13269 | stub_sec->size = ((stub_sec->size |
| 13270 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13271 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13272 | |
| d4aaa2a0 AM |
13273 | for (group = htab->group; group != NULL; group = group->next) |
| 13274 | if ((stub_sec = group->stub_sec) != NULL) | |
| e717da7e AM |
13275 | { |
| 13276 | stub_sec_count += 1; | |
| c9301e31 AM |
13277 | if (stub_sec->rawsize != stub_sec->size |
| 13278 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13279 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13280 | break; |
| 13281 | } | |
| 5d1634d7 | 13282 | |
| 25516cc5 | 13283 | if (group != NULL) |
| 5d1634d7 | 13284 | { |
| b34976b6 | 13285 | htab->stub_error = TRUE; |
| 8de848d8 | 13286 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13287 | } |
| 721956f4 | 13288 | |
| d2a300cf AM |
13289 | if (htab->stub_error) |
| 13290 | return FALSE; | |
| 13291 | ||
| 13292 | if (stats != NULL) | |
| 13293 | { | |
| 13294 | *stats = bfd_malloc (500); | |
| 13295 | if (*stats == NULL) | |
| 13296 | return FALSE; | |
| 13297 | ||
| ee75fd95 | 13298 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13299 | " branch %lu\n" |
| 13300 | " toc adjust %lu\n" | |
| 13301 | " long branch %lu\n" | |
| 13302 | " long toc adj %lu\n" | |
| 794e51c0 | 13303 | " plt call %lu\n" |
| 7341d5e2 AM |
13304 | " plt call toc %lu\n" |
| 13305 | " global entry %lu"), | |
| e717da7e | 13306 | stub_sec_count, |
| ee75fd95 | 13307 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13308 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13309 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13310 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13311 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13312 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13313 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13314 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13315 | } |
| 13316 | return TRUE; | |
| 5bd4f169 AM |
13317 | } |
| 13318 | ||
| 60124e18 AM |
13319 | /* What to do when ld finds relocations against symbols defined in |
| 13320 | discarded sections. */ | |
| 13321 | ||
| 13322 | static unsigned int | |
| 13323 | ppc64_elf_action_discarded (asection *sec) | |
| 13324 | { | |
| 13325 | if (strcmp (".opd", sec->name) == 0) | |
| 13326 | return 0; | |
| 13327 | ||
| 13328 | if (strcmp (".toc", sec->name) == 0) | |
| 13329 | return 0; | |
| 13330 | ||
| bce50a28 JJ |
13331 | if (strcmp (".toc1", sec->name) == 0) |
| 13332 | return 0; | |
| 13333 | ||
| 60124e18 AM |
13334 | return _bfd_elf_default_action_discarded (sec); |
| 13335 | } | |
| 13336 | ||
| 5bd4f169 AM |
13337 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13338 | to handle the relocations for a section. | |
| 13339 | ||
| 13340 | The relocs are always passed as Rela structures; if the section | |
| 13341 | actually uses Rel structures, the r_addend field will always be | |
| 13342 | zero. | |
| 13343 | ||
| 13344 | This function is responsible for adjust the section contents as | |
| 13345 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13346 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13347 | necessary. |
| 13348 | ||
| 13349 | This function does not have to worry about setting the reloc | |
| 13350 | address or the reloc symbol index. | |
| 13351 | ||
| 13352 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13353 | ||
| 13354 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13355 | corresponding to the st_shndx field of each local symbol. | |
| 13356 | ||
| 13357 | The global hash table entry for the global symbols can be found | |
| 13358 | via elf_sym_hashes (input_bfd). | |
| 13359 | ||
| 1049f94e | 13360 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13361 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13362 | going to be the section symbol corresponding to the output | |
| 13363 | section, which means that the addend must be adjusted | |
| 13364 | accordingly. */ | |
| 13365 | ||
| b34976b6 | 13366 | static bfd_boolean |
| 4ce794b7 AM |
13367 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13368 | struct bfd_link_info *info, | |
| 13369 | bfd *input_bfd, | |
| 13370 | asection *input_section, | |
| 13371 | bfd_byte *contents, | |
| 13372 | Elf_Internal_Rela *relocs, | |
| 13373 | Elf_Internal_Sym *local_syms, | |
| 13374 | asection **local_sections) | |
| 5bd4f169 | 13375 | { |
| 65f38f15 | 13376 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13377 | Elf_Internal_Shdr *symtab_hdr; |
| 13378 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13379 | Elf_Internal_Rela *rel; |
| c316a17c | 13380 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13381 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13382 | Elf_Internal_Rela outrel; |
| 13383 | bfd_byte *loc; | |
| 411e1bfb | 13384 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13385 | bfd_vma TOCstart; |
| b34976b6 AM |
13386 | bfd_boolean ret = TRUE; |
| 13387 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13388 | /* Assume 'at' branch hints. */ |
| 13389 | bfd_boolean is_isa_v2 = TRUE; | |
| 95f0d0d2 | 13390 | bfd_vma d_offset = (bfd_big_endian (input_bfd) ? 2 : 0); |
| 5bd4f169 | 13391 | |
| 65f38f15 | 13392 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13393 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13394 | ppc_howto_init (); |
| 13395 | ||
| 65f38f15 | 13396 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13397 | if (htab == NULL) |
| 13398 | return FALSE; | |
| ee75fd95 AM |
13399 | |
| 13400 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13401 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13402 | return TRUE; |
| 13403 | ||
| 0c8d6e5c | 13404 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13405 | |
| 411e1bfb | 13406 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13407 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13408 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13409 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13410 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13411 | |
| c316a17c | 13412 | rel = wrel = relocs; |
| 5bd4f169 | 13413 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13414 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13415 | { |
| 04c9666a | 13416 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13417 | bfd_vma addend; |
| 5bd4f169 AM |
13418 | bfd_reloc_status_type r; |
| 13419 | Elf_Internal_Sym *sym; | |
| 13420 | asection *sec; | |
| 039b3fef AM |
13421 | struct elf_link_hash_entry *h_elf; |
| 13422 | struct ppc_link_hash_entry *h; | |
| 13423 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13424 | const char *sym_name; |
| 0d4792f7 | 13425 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13426 | bfd_vma toc_addend; |
| f961d9dd AM |
13427 | unsigned char tls_mask, tls_gd, tls_type; |
| 13428 | unsigned char sym_type; | |
| 5bd4f169 | 13429 | bfd_vma relocation; |
| b34976b6 AM |
13430 | bfd_boolean unresolved_reloc; |
| 13431 | bfd_boolean warned; | |
| bc30df16 | 13432 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13433 | unsigned int insn; |
| e11840f9 | 13434 | unsigned int mask; |
| 721956f4 AM |
13435 | struct ppc_stub_hash_entry *stub_entry; |
| 13436 | bfd_vma max_br_offset; | |
| 13437 | bfd_vma from; | |
| c316a17c | 13438 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13439 | reloc_howto_type *howto; |
| 13440 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13441 | |
| c316a17c AM |
13442 | again: |
| 13443 | orig_rel = *rel; | |
| 13444 | ||
| 4ce794b7 | 13445 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13446 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13447 | |
| 13448 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13449 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13450 | proper TOC base to use. */ | |
| 13451 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13452 | && wrel != relocs |
| 13453 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13454 | && is_opd) |
| c316a17c | 13455 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13456 | |
| 4ce794b7 AM |
13457 | sym = NULL; |
| 13458 | sec = NULL; | |
| 039b3fef | 13459 | h_elf = NULL; |
| 4ce794b7 | 13460 | sym_name = NULL; |
| b34976b6 AM |
13461 | unresolved_reloc = FALSE; |
| 13462 | warned = FALSE; | |
| 65f38f15 | 13463 | |
| 0b13192e | 13464 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13465 | { |
| 13466 | /* It's a local symbol. */ | |
| 74f0fb50 | 13467 | struct _opd_sec_data *opd; |
| 4025353c | 13468 | |
| 5bd4f169 AM |
13469 | sym = local_syms + r_symndx; |
| 13470 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13471 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13472 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13473 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13474 | opd = get_opd_info (sec); |
| 13475 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13476 | { |
| 51aecdc5 AM |
13477 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13478 | + rel->r_addend)]; | |
| 4025353c AM |
13479 | if (adjust == -1) |
| 13480 | relocation = 0; | |
| 13481 | else | |
| 4cc603a5 AM |
13482 | { |
| 13483 | /* If this is a relocation against the opd section sym | |
| 13484 | and we have edited .opd, adjust the reloc addend so | |
| 13485 | that ld -r and ld --emit-relocs output is correct. | |
| 13486 | If it is a reloc against some other .opd symbol, | |
| 13487 | then the symbol value will be adjusted later. */ | |
| 13488 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13489 | rel->r_addend += adjust; | |
| 13490 | else | |
| 13491 | relocation += adjust; | |
| 13492 | } | |
| 1e2f5b6e | 13493 | } |
| 5bd4f169 AM |
13494 | } |
| 13495 | else | |
| 13496 | { | |
| 62d887d4 L |
13497 | bfd_boolean ignored; |
| 13498 | ||
| b2a8e766 AM |
13499 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13500 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13501 | h_elf, sec, relocation, |
| 62d887d4 | 13502 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13503 | sym_name = h_elf->root.root.string; |
| 13504 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13505 | if (sec != NULL |
| 13506 | && sec->owner == output_bfd | |
| 13507 | && strcmp (sec->name, ".opd") == 0) | |
| 13508 | { | |
| 13509 | /* This is a symbol defined in a linker script. All | |
| 13510 | such are defined in output sections, even those | |
| 13511 | defined by simple assignment from a symbol defined in | |
| 13512 | an input section. Transfer the symbol to an | |
| 13513 | appropriate input .opd section, so that a branch to | |
| 13514 | this symbol will be mapped to the location specified | |
| 13515 | by the opd entry. */ | |
| 13516 | struct bfd_link_order *lo; | |
| 13517 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13518 | if (lo->type == bfd_indirect_link_order) | |
| 13519 | { | |
| 13520 | asection *isec = lo->u.indirect.section; | |
| 13521 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13522 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13523 | + isec->size)) | |
| 13524 | { | |
| 13525 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13526 | h_elf->root.u.def.section = isec; | |
| 13527 | sec = isec; | |
| 13528 | break; | |
| 13529 | } | |
| 13530 | } | |
| 13531 | } | |
| 5bd4f169 | 13532 | } |
| 039b3fef | 13533 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13534 | |
| dbaa2011 | 13535 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13536 | { |
| 13537 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13538 | input_bfd, input_section, | |
| 13539 | contents + rel->r_offset); | |
| 13540 | wrel->r_offset = rel->r_offset; | |
| 13541 | wrel->r_info = 0; | |
| 13542 | wrel->r_addend = 0; | |
| 13543 | ||
| 13544 | /* For ld -r, remove relocations in debug sections against | |
| dcd2b8a0 | 13545 | symbols defined in discarded sections. Not done for |
| c316a17c AM |
13546 | non-debug to preserve relocs in .eh_frame which the |
| 13547 | eh_frame editing code expects to be present. */ | |
| 13548 | if (bfd_link_relocatable (info) | |
| 13549 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13550 | wrel--; | |
| 13551 | ||
| 13552 | continue; | |
| 13553 | } | |
| ab96bf03 | 13554 | |
| 0e1862bb | 13555 | if (bfd_link_relocatable (info)) |
| c316a17c | 13556 | goto copy_reloc; |
| ab96bf03 | 13557 | |
| f40da81b AM |
13558 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13559 | { | |
| 6f20ed8a | 13560 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13561 | sec = bfd_abs_section_ptr; |
| 13562 | unresolved_reloc = FALSE; | |
| 13563 | } | |
| 13564 | ||
| 951fd09b AM |
13565 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13566 | based on information we collected in tls_optimize. We edit | |
| 13567 | RELOCS so that --emit-relocs will output something sensible | |
| 13568 | for the final instruction stream. */ | |
| 13569 | tls_mask = 0; | |
| 13570 | tls_gd = 0; | |
| 0d4792f7 | 13571 | toc_symndx = 0; |
| 727fc41e AM |
13572 | if (h != NULL) |
| 13573 | tls_mask = h->tls_mask; | |
| 13574 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13575 | { |
| e054468f AM |
13576 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13577 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13578 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13579 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13580 | tls_mask = lgot_masks[r_symndx]; |
| 13581 | } | |
| 13582 | if (tls_mask == 0 | |
| 13583 | && (r_type == R_PPC64_TLS | |
| 13584 | || r_type == R_PPC64_TLSGD | |
| 13585 | || r_type == R_PPC64_TLSLD)) | |
| 13586 | { | |
| 13587 | /* Check for toc tls entries. */ | |
| f961d9dd | 13588 | unsigned char *toc_tls; |
| 0d4792f7 | 13589 | |
| 727fc41e AM |
13590 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13591 | &local_syms, rel, input_bfd)) | |
| 13592 | return FALSE; | |
| 0d4792f7 | 13593 | |
| 727fc41e AM |
13594 | if (toc_tls) |
| 13595 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13596 | } |
| 13597 | ||
| 13598 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13599 | relocs are used with non-tls syms. */ | |
| cf35638d | 13600 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13601 | && r_type != R_PPC64_NONE |
| 13602 | && (h == NULL | |
| 039b3fef AM |
13603 | || h->elf.root.type == bfd_link_hash_defined |
| 13604 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13605 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13606 | != (sym_type == STT_TLS | |
| 13607 | || (sym_type == STT_SECTION | |
| 13608 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13609 | { |
| 727fc41e AM |
13610 | if (tls_mask != 0 |
| 13611 | && (r_type == R_PPC64_TLS | |
| 13612 | || r_type == R_PPC64_TLSGD | |
| 13613 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13614 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13615 | ; | |
| 13616 | else | |
| 25f53a85 | 13617 | info->callbacks->einfo |
| 1d483afe | 13618 | (!IS_PPC64_TLS_RELOC (r_type) |
| 695344c0 | 13619 | /* xgettext:c-format */ |
| 174d0a74 | 13620 | ? _("%H: %s used with TLS symbol `%T'\n") |
| 695344c0 | 13621 | /* xgettext:c-format */ |
| 174d0a74 | 13622 | : _("%H: %s used with non-TLS symbol `%T'\n"), |
| 25f53a85 | 13623 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13624 | ppc64_elf_howto_table[r_type]->name, |
| 13625 | sym_name); | |
| 411e1bfb AM |
13626 | } |
| 13627 | ||
| 13628 | /* Ensure reloc mapping code below stays sane. */ | |
| 13629 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13630 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13631 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13632 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13633 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13634 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13635 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13636 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13637 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13638 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13639 | abort (); | |
| 0d4792f7 | 13640 | |
| 411e1bfb AM |
13641 | switch (r_type) |
| 13642 | { | |
| 13643 | default: | |
| 411e1bfb AM |
13644 | break; |
| 13645 | ||
| ba761f19 | 13646 | case R_PPC64_LO_DS_OPT: |
| 95f0d0d2 | 13647 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13648 | if ((insn & (0x3f << 26)) != 58u << 26) |
| 13649 | abort (); | |
| 13650 | insn += (14u << 26) - (58u << 26); | |
| 95f0d0d2 | 13651 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset - d_offset); |
| ba761f19 AM |
13652 | r_type = R_PPC64_TOC16_LO; |
| 13653 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13654 | break; | |
| 13655 | ||
| 411e1bfb AM |
13656 | case R_PPC64_TOC16: |
| 13657 | case R_PPC64_TOC16_LO: | |
| 13658 | case R_PPC64_TOC16_DS: | |
| 13659 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13660 | { |
| 13661 | /* Check for toc tls entries. */ | |
| f961d9dd | 13662 | unsigned char *toc_tls; |
| 951fd09b | 13663 | int retval; |
| 411e1bfb | 13664 | |
| 3a71aa26 AM |
13665 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13666 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13667 | if (retval == 0) |
| 411e1bfb AM |
13668 | return FALSE; |
| 13669 | ||
| 13670 | if (toc_tls) | |
| 13671 | { | |
| 951fd09b | 13672 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13673 | if (r_type == R_PPC64_TOC16_DS |
| 13674 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13675 | { |
| 13676 | if (tls_mask != 0 | |
| 13677 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13678 | goto toctprel; | |
| 13679 | } | |
| 411e1bfb | 13680 | else |
| 951fd09b AM |
13681 | { |
| 13682 | /* If we found a GD reloc pair, then we might be | |
| 13683 | doing a GD->IE transition. */ | |
| 13684 | if (retval == 2) | |
| 13685 | { | |
| 13686 | tls_gd = TLS_TPRELGD; | |
| 13687 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13688 | goto tls_ldgd_opt; |
| 951fd09b AM |
13689 | } |
| 13690 | else if (retval == 3) | |
| 13691 | { | |
| 13692 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13693 | goto tls_ldgd_opt; |
| 951fd09b AM |
13694 | } |
| 13695 | } | |
| 411e1bfb AM |
13696 | } |
| 13697 | } | |
| 13698 | break; | |
| 13699 | ||
| 9d6ded02 AM |
13700 | case R_PPC64_GOT_TPREL16_HI: |
| 13701 | case R_PPC64_GOT_TPREL16_HA: | |
| 13702 | if (tls_mask != 0 | |
| 13703 | && (tls_mask & TLS_TPREL) == 0) | |
| 13704 | { | |
| 13705 | rel->r_offset -= d_offset; | |
| 95f0d0d2 | 13706 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 9d6ded02 AM |
13707 | r_type = R_PPC64_NONE; |
| 13708 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13709 | } | |
| 13710 | break; | |
| 13711 | ||
| 411e1bfb AM |
13712 | case R_PPC64_GOT_TPREL16_DS: |
| 13713 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13714 | if (tls_mask != 0 |
| 13715 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13716 | { |
| 81407a69 | 13717 | toctprel: |
| 95f0d0d2 | 13718 | insn = bfd_get_32 (input_bfd, |
| c316a17c | 13719 | contents + rel->r_offset - d_offset); |
| 411e1bfb AM |
13720 | insn &= 31 << 21; |
| 13721 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| 95f0d0d2 | 13722 | bfd_put_32 (input_bfd, insn, |
| c316a17c | 13723 | contents + rel->r_offset - d_offset); |
| 411e1bfb | 13724 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13725 | if (toc_symndx != 0) |
| 13726 | { | |
| 13727 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13728 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13729 | /* We changed the symbol. Start over in order to |
| 13730 | get h, sym, sec etc. right. */ | |
| c316a17c | 13731 | goto again; |
| 0d4792f7 AM |
13732 | } |
| 13733 | else | |
| 13734 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13735 | } |
| 13736 | break; | |
| 13737 | ||
| 13738 | case R_PPC64_TLS: | |
| 951fd09b AM |
13739 | if (tls_mask != 0 |
| 13740 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13741 | { |
| 95f0d0d2 | 13742 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13743 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13744 | if (insn == 0) | |
| 411e1bfb | 13745 | abort (); |
| 95f0d0d2 | 13746 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13747 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13748 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13749 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13750 | r_type = R_PPC64_TPREL16_LO; |
| 13751 | if (toc_symndx != 0) | |
| 13752 | { | |
| 13753 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13754 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13755 | /* We changed the symbol. Start over in order to |
| 13756 | get h, sym, sec etc. right. */ | |
| c316a17c | 13757 | goto again; |
| 0d4792f7 AM |
13758 | } |
| 13759 | else | |
| 13760 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13761 | } |
| 13762 | break; | |
| 13763 | ||
| 411e1bfb AM |
13764 | case R_PPC64_GOT_TLSGD16_HI: |
| 13765 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13766 | tls_gd = TLS_TPRELGD; |
| 13767 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13768 | goto tls_gdld_hi; | |
| 13769 | break; | |
| 13770 | ||
| 411e1bfb AM |
13771 | case R_PPC64_GOT_TLSLD16_HI: |
| 13772 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13773 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13774 | { |
| 951fd09b AM |
13775 | tls_gdld_hi: |
| 13776 | if ((tls_mask & tls_gd) != 0) | |
| 13777 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13778 | + R_PPC64_GOT_TPREL16_DS); | |
| 13779 | else | |
| 411e1bfb | 13780 | { |
| 4fe5ca5b | 13781 | rel->r_offset -= d_offset; |
| 95f0d0d2 | 13782 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13783 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13784 | } |
| 951fd09b | 13785 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13786 | } |
| 13787 | break; | |
| 13788 | ||
| 951fd09b AM |
13789 | case R_PPC64_GOT_TLSGD16: |
| 13790 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13791 | tls_gd = TLS_TPRELGD; | |
| 13792 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13793 | goto tls_ldgd_opt; |
| 951fd09b | 13794 | break; |
| 411e1bfb | 13795 | |
| 951fd09b AM |
13796 | case R_PPC64_GOT_TLSLD16: |
| 13797 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13798 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13799 | { | |
| b9f04fe0 | 13800 | unsigned int insn1, insn2; |
| 102890f0 AM |
13801 | bfd_vma offset; |
| 13802 | ||
| 13803 | tls_ldgd_opt: | |
| 727fc41e AM |
13804 | offset = (bfd_vma) -1; |
| 13805 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13806 | __tls_get_addr calls, we must trust that the call | |
| 13807 | stays with its arg setup insns, ie. that the next | |
| 13808 | reloc is the __tls_get_addr call associated with | |
| 13809 | the current reloc. Edit both insns. */ | |
| 13810 | if (input_section->has_tls_get_addr_call | |
| 13811 | && rel + 1 < relend | |
| 13812 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13813 | htab->tls_get_addr, | |
| 13814 | htab->tls_get_addr_fd)) | |
| 13815 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13816 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13817 | need to keep the destination reg. It may be | |
| 13818 | something other than the usual r3, and moved to r3 | |
| 13819 | before the call by intervening code. */ | |
| 95f0d0d2 | 13820 | insn1 = bfd_get_32 (input_bfd, |
| b86ac8e3 | 13821 | contents + rel->r_offset - d_offset); |
| 102890f0 | 13822 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13823 | { |
| 102890f0 | 13824 | /* IE */ |
| b86ac8e3 | 13825 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13826 | insn1 |= 58 << 26; /* ld */ |
| 13827 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13828 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13829 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13830 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13831 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13832 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13833 | else |
| 102890f0 AM |
13834 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13835 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13836 | } | |
| 13837 | else | |
| 13838 | { | |
| 13839 | /* LE */ | |
| b86ac8e3 AM |
13840 | insn1 &= 0x1f << 21; |
| 13841 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13842 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13843 | if (tls_gd == 0) | |
| 951fd09b | 13844 | { |
| 102890f0 | 13845 | /* Was an LD reloc. */ |
| 1d483afe AM |
13846 | if (toc_symndx) |
| 13847 | sec = local_sections[toc_symndx]; | |
| 13848 | for (r_symndx = 0; | |
| 13849 | r_symndx < symtab_hdr->sh_info; | |
| 13850 | r_symndx++) | |
| 13851 | if (local_sections[r_symndx] == sec) | |
| 13852 | break; | |
| 13853 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13854 | r_symndx = STN_UNDEF; |
| 102890f0 | 13855 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13856 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13857 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13858 | + sec->output_offset | |
| 13859 | + sec->output_section->vma); | |
| 951fd09b | 13860 | } |
| 102890f0 | 13861 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13862 | { |
| 13863 | r_symndx = toc_symndx; | |
| 13864 | rel->r_addend = toc_addend; | |
| 13865 | } | |
| 102890f0 AM |
13866 | r_type = R_PPC64_TPREL16_HA; |
| 13867 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13868 | if (offset != (bfd_vma) -1) |
| 13869 | { | |
| 13870 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13871 | R_PPC64_TPREL16_LO); | |
| 13872 | rel[1].r_offset = offset + d_offset; | |
| 13873 | rel[1].r_addend = rel->r_addend; | |
| 13874 | } | |
| 102890f0 | 13875 | } |
| 95f0d0d2 | 13876 | bfd_put_32 (input_bfd, insn1, |
| 3a71aa26 | 13877 | contents + rel->r_offset - d_offset); |
| 727fc41e | 13878 | if (offset != (bfd_vma) -1) |
| b9f04fe0 | 13879 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e AM |
13880 | if ((tls_mask & tls_gd) == 0 |
| 13881 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13882 | { | |
| 13883 | /* We changed the symbol. Start over in order | |
| 13884 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13885 | goto again; |
| 727fc41e AM |
13886 | } |
| 13887 | } | |
| 13888 | break; | |
| 13889 | ||
| 13890 | case R_PPC64_TLSGD: | |
| 13891 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13892 | { | |
| b9f04fe0 | 13893 | unsigned int insn2; |
| 727fc41e AM |
13894 | bfd_vma offset = rel->r_offset; |
| 13895 | ||
| 13896 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13897 | { | |
| 13898 | /* IE */ | |
| 13899 | r_type = R_PPC64_NONE; | |
| 13900 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13901 | } | |
| 13902 | else | |
| 13903 | { | |
| 13904 | /* LE */ | |
| 13905 | if (toc_symndx != 0) | |
| 13906 | { | |
| 13907 | r_symndx = toc_symndx; | |
| 13908 | rel->r_addend = toc_addend; | |
| 13909 | } | |
| 13910 | r_type = R_PPC64_TPREL16_LO; | |
| 13911 | rel->r_offset = offset + d_offset; | |
| 13912 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13913 | } | |
| 13914 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13915 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13916 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13917 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 95f0d0d2 | 13918 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| 727fc41e | 13919 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13920 | goto again; |
| 411e1bfb | 13921 | } |
| 411e1bfb AM |
13922 | break; |
| 13923 | ||
| 727fc41e AM |
13924 | case R_PPC64_TLSLD: |
| 13925 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13926 | { | |
| b9f04fe0 | 13927 | unsigned int insn2; |
| 727fc41e AM |
13928 | bfd_vma offset = rel->r_offset; |
| 13929 | ||
| 13930 | if (toc_symndx) | |
| 13931 | sec = local_sections[toc_symndx]; | |
| 13932 | for (r_symndx = 0; | |
| 13933 | r_symndx < symtab_hdr->sh_info; | |
| 13934 | r_symndx++) | |
| 13935 | if (local_sections[r_symndx] == sec) | |
| 13936 | break; | |
| 13937 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13938 | r_symndx = STN_UNDEF; |
| 727fc41e | 13939 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13940 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13941 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13942 | + sec->output_offset | |
| 13943 | + sec->output_section->vma); | |
| 13944 | ||
| 13945 | r_type = R_PPC64_TPREL16_LO; | |
| 13946 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13947 | rel->r_offset = offset + d_offset; | |
| 13948 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13949 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13950 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e | 13951 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 95f0d0d2 | 13952 | bfd_put_32 (input_bfd, insn2, contents + offset); |
| c316a17c | 13953 | goto again; |
| 727fc41e AM |
13954 | } |
| 13955 | break; | |
| 13956 | ||
| 411e1bfb | 13957 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13958 | if (rel + 1 < relend |
| 13959 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13960 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13961 | { |
| 951fd09b AM |
13962 | if ((tls_mask & TLS_GD) == 0) |
| 13963 | { | |
| 13964 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13965 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13966 | r_type = R_PPC64_TPREL64; | |
| 13967 | else | |
| 13968 | { | |
| 4ce794b7 | 13969 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13970 | r_type = R_PPC64_NONE; |
| 13971 | } | |
| 13972 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13973 | } | |
| 13974 | } | |
| 13975 | else | |
| 13976 | { | |
| 13977 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13978 | { |
| 4ce794b7 | 13979 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13980 | r_type = R_PPC64_NONE; |
| 951fd09b | 13981 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13982 | } |
| 411e1bfb AM |
13983 | } |
| 13984 | break; | |
| 13985 | ||
| 13986 | case R_PPC64_TPREL64: | |
| 951fd09b | 13987 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13988 | { |
| 13989 | r_type = R_PPC64_NONE; | |
| 13990 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13991 | } | |
| 13992 | break; | |
| 52a82034 | 13993 | |
| 006589cf AM |
13994 | case R_PPC64_ENTRY: |
| 13995 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 13996 | if (!bfd_link_pic (info) | |
| 13997 | && !info->traditional_format | |
| 13998 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13999 | { | |
| 14000 | unsigned int insn1, insn2; | |
| 14001 | ||
| 14002 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14003 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14004 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14005 | && insn2 == ADD_R2_R2_R12) | |
| 14006 | { | |
| 95f0d0d2 | 14007 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14008 | LIS_R2 + PPC_HA (relocation), |
| 14009 | contents + rel->r_offset); | |
| 95f0d0d2 | 14010 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14011 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14012 | contents + rel->r_offset + 4); | |
| 14013 | } | |
| 14014 | } | |
| 14015 | else | |
| 14016 | { | |
| 14017 | relocation -= (rel->r_offset | |
| 14018 | + input_section->output_offset | |
| 14019 | + input_section->output_section->vma); | |
| 14020 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 14021 | { | |
| 14022 | unsigned int insn1, insn2; | |
| 14023 | ||
| 14024 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14025 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 14026 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 14027 | && insn2 == ADD_R2_R2_R12) | |
| 14028 | { | |
| 95f0d0d2 | 14029 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14030 | ADDIS_R2_R12 + PPC_HA (relocation), |
| 14031 | contents + rel->r_offset); | |
| 95f0d0d2 | 14032 | bfd_put_32 (input_bfd, |
| 006589cf AM |
14033 | ADDI_R2_R2 + PPC_LO (relocation), |
| 14034 | contents + rel->r_offset + 4); | |
| 14035 | } | |
| 14036 | } | |
| 14037 | } | |
| 14038 | break; | |
| 14039 | ||
| 52a82034 AM |
14040 | case R_PPC64_REL16_HA: |
| 14041 | /* If we are generating a non-PIC executable, edit | |
| 14042 | . 0: addis 2,12,.TOC.-0b@ha | |
| 14043 | . addi 2,2,.TOC.-0b@l | |
| 14044 | used by ELFv2 global entry points to set up r2, to | |
| 14045 | . lis 2,.TOC.@ha | |
| 14046 | . addi 2,2,.TOC.@l | |
| 14047 | if .TOC. is in range. */ | |
| 0e1862bb | 14048 | if (!bfd_link_pic (info) |
| 810d4e75 | 14049 | && !info->traditional_format |
| 006589cf | 14050 | && !htab->opd_abi |
| 4f038ee5 | 14051 | && rel->r_addend == d_offset |
| 52a82034 AM |
14052 | && h != NULL && &h->elf == htab->elf.hgot |
| 14053 | && rel + 1 < relend | |
| 14054 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 14055 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14056 | && rel[1].r_addend == rel->r_addend + 4 | |
| 14057 | && relocation + 0x80008000 <= 0xffffffff) | |
| 14058 | { | |
| 14059 | unsigned int insn1, insn2; | |
| 14060 | bfd_vma offset = rel->r_offset - d_offset; | |
| 95f0d0d2 AM |
14061 | insn1 = bfd_get_32 (input_bfd, contents + offset); |
| 14062 | insn2 = bfd_get_32 (input_bfd, contents + offset + 4); | |
| 006589cf AM |
14063 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 14064 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
14065 | { |
| 14066 | r_type = R_PPC64_ADDR16_HA; | |
| 14067 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 14068 | rel->r_addend -= d_offset; | |
| 14069 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 14070 | rel[1].r_addend -= d_offset + 4; | |
| 95f0d0d2 | 14071 | bfd_put_32 (input_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
14072 | } |
| 14073 | } | |
| 14074 | break; | |
| 411e1bfb AM |
14075 | } |
| 14076 | ||
| 14077 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 14078 | insn = 0; |
| b25116a9 AM |
14079 | max_br_offset = 1 << 25; |
| 14080 | addend = rel->r_addend; | |
| bc30df16 | 14081 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 14082 | switch (r_type) |
| 5bd4f169 AM |
14083 | { |
| 14084 | default: | |
| 65f38f15 | 14085 | break; |
| 5bd4f169 | 14086 | |
| 3b421ab3 AM |
14087 | case R_PPC64_TOCSAVE: |
| 14088 | if (relocation + addend == (rel->r_offset | |
| 14089 | + input_section->output_offset | |
| 14090 | + input_section->output_section->vma) | |
| 14091 | && tocsave_find (htab, NO_INSERT, | |
| 14092 | &local_syms, rel, input_bfd)) | |
| 14093 | { | |
| 14094 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 14095 | if (insn == NOP | |
| 14096 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
14097 | bfd_put_32 (input_bfd, |
| 14098 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
14099 | contents + rel->r_offset); |
| 14100 | } | |
| 14101 | break; | |
| 14102 | ||
| 65f38f15 AM |
14103 | /* Branch taken prediction relocations. */ |
| 14104 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14105 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 | 14106 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 1a0670f3 | 14107 | /* Fall through. */ |
| 65f38f15 | 14108 | |
| 86c76c7b | 14109 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
14110 | case R_PPC64_ADDR14_BRNTAKEN: |
| 14111 | case R_PPC64_REL14_BRNTAKEN: | |
| 95f0d0d2 | 14112 | insn |= bfd_get_32 (input_bfd, |
| 411e1bfb | 14113 | contents + rel->r_offset) & ~(0x01 << 21); |
| 1a0670f3 | 14114 | /* Fall through. */ |
| 86c76c7b | 14115 | |
| b25116a9 AM |
14116 | case R_PPC64_REL14: |
| 14117 | max_br_offset = 1 << 15; | |
| 1a0670f3 | 14118 | /* Fall through. */ |
| 5bd4f169 | 14119 | |
| 65f38f15 | 14120 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14121 | /* Calls to functions with a different TOC, such as calls to |
| 14122 | shared objects, need to alter the TOC pointer. This is | |
| 14123 | done using a linkage stub. A REL24 branching to these | |
| 14124 | linkage stubs needs to be followed by a nop, as the nop | |
| 14125 | will be replaced with an instruction to restore the TOC | |
| 14126 | base pointer. */ | |
| 8387904d | 14127 | fdh = h; |
| b31867b6 AM |
14128 | if (h != NULL |
| 14129 | && h->oh != NULL | |
| 14130 | && h->oh->is_func_descriptor) | |
| 14131 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14132 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14133 | htab); | |
| 6abec6bc | 14134 | if (stub_entry != NULL |
| ad8e1ba5 | 14135 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14136 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14137 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14138 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14139 | { |
| b25116a9 | 14140 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14141 | |
| 6e1816be AM |
14142 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14143 | && !htab->opd_abi | |
| 14144 | && htab->params->plt_localentry0 != 0 | |
| 14145 | && is_elfv2_localentry0 (&h->elf)) | |
| 14146 | { | |
| 14147 | /* The function doesn't use or change r2. */ | |
| 14148 | can_plt_call = TRUE; | |
| 14149 | } | |
| 14150 | ||
| f378ab09 | 14151 | /* All of these stubs may modify r2, so there must be a |
| ba8ca3e7 AM |
14152 | branch and link followed by a nop. The nop is |
| 14153 | replaced by an insn to restore r2. */ | |
| 6e1816be | 14154 | else if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14155 | { |
| ba8ca3e7 AM |
14156 | unsigned long br; |
| 14157 | ||
| 14158 | br = bfd_get_32 (input_bfd, | |
| 14159 | contents + rel->r_offset); | |
| 14160 | if ((br & 1) != 0) | |
| 41bd81ab | 14161 | { |
| ba8ca3e7 AM |
14162 | unsigned long nop; |
| 14163 | ||
| 14164 | nop = bfd_get_32 (input_bfd, | |
| 14165 | contents + rel->r_offset + 4); | |
| 14166 | if (nop == NOP | |
| 14167 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14168 | { |
| ba8ca3e7 AM |
14169 | if (h != NULL |
| 14170 | && (h == htab->tls_get_addr_fd | |
| 14171 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14172 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14173 | { |
| 14174 | /* Special stub used, leave nop alone. */ | |
| 14175 | } | |
| 14176 | else | |
| a078d95a AM |
14177 | bfd_put_32 (input_bfd, |
| 14178 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14179 | contents + rel->r_offset + 4); |
| 14180 | can_plt_call = TRUE; | |
| a7f2871e | 14181 | } |
| 41bd81ab | 14182 | } |
| 5bd4f169 | 14183 | } |
| 721956f4 | 14184 | |
| ba8ca3e7 | 14185 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14186 | { |
| ba8ca3e7 AM |
14187 | const char *name = h->elf.root.root.string; |
| 14188 | ||
| 14189 | if (*name == '.') | |
| 14190 | ++name; | |
| 14191 | ||
| 14192 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14193 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14194 | { |
| ba8ca3e7 AM |
14195 | /* Allow crt1 branch to go via a toc adjusting |
| 14196 | stub. Other calls that never return could do | |
| 14197 | the same, if we could detect such. */ | |
| b25116a9 | 14198 | can_plt_call = TRUE; |
| 6ab189d5 | 14199 | } |
| ba8ca3e7 AM |
14200 | } |
| 14201 | ||
| 14202 | if (!can_plt_call) | |
| 14203 | { | |
| 14204 | /* g++ as of 20130507 emits self-calls without a | |
| 14205 | following nop. This is arguably wrong since we | |
| 14206 | have conflicting information. On the one hand a | |
| 14207 | global symbol and on the other a local call | |
| 14208 | sequence, but don't error for this special case. | |
| 14209 | It isn't possible to cheaply verify we have | |
| 14210 | exactly such a call. Allow all calls to the same | |
| 14211 | section. */ | |
| 14212 | asection *code_sec = sec; | |
| 14213 | ||
| 14214 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14215 | { |
| ba8ca3e7 AM |
14216 | bfd_vma off = (relocation + addend |
| 14217 | - sec->output_section->vma | |
| 14218 | - sec->output_offset); | |
| bc30df16 | 14219 | |
| ba8ca3e7 | 14220 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14221 | } |
| ba8ca3e7 AM |
14222 | if (code_sec == input_section) |
| 14223 | can_plt_call = TRUE; | |
| 14224 | } | |
| 14225 | ||
| 14226 | if (!can_plt_call) | |
| 14227 | { | |
| 4805fc55 AM |
14228 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14229 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14230 | info->callbacks->einfo | |
| 695344c0 | 14231 | /* xgettext:c-format */ |
| 174d0a74 | 14232 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14233 | "recompile with -fPIC\n"), |
| 14234 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14235 | else | |
| 14236 | info->callbacks->einfo | |
| 695344c0 | 14237 | /* xgettext:c-format */ |
| 174d0a74 | 14238 | (_("%H: call to `%T' lacks nop, can't restore toc; " |
| 4805fc55 AM |
14239 | "(-mcmodel=small toc adjust stub)\n"), |
| 14240 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14241 | |
| 14242 | bfd_set_error (bfd_error_bad_value); | |
| 14243 | ret = FALSE; | |
| 721956f4 AM |
14244 | } |
| 14245 | ||
| b25116a9 | 14246 | if (can_plt_call |
| 794e51c0 AM |
14247 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14248 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14249 | unresolved_reloc = FALSE; |
| 14250 | } | |
| 14251 | ||
| 6abec6bc AM |
14252 | if ((stub_entry == NULL |
| 14253 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14254 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14255 | && get_opd_info (sec) != NULL) |
| 14256 | { | |
| 14257 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14258 | bfd_vma off = (relocation + addend |
| 14259 | - sec->output_section->vma | |
| 14260 | - sec->output_offset); | |
| aef36ac1 | 14261 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14262 | if (dest != (bfd_vma) -1) |
| 14263 | { | |
| 14264 | relocation = dest; | |
| 14265 | addend = 0; | |
| bc30df16 | 14266 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14267 | } |
| 14268 | } | |
| 14269 | ||
| b25116a9 AM |
14270 | /* If the branch is out of reach we ought to have a long |
| 14271 | branch stub. */ | |
| 14272 | from = (rel->r_offset | |
| 14273 | + input_section->output_offset | |
| 14274 | + input_section->output_section->vma); | |
| 14275 | ||
| 6911b7dc AM |
14276 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14277 | ? fdh->elf.other | |
| 14278 | : sym->st_other); | |
| 14279 | ||
| 6abec6bc AM |
14280 | if (stub_entry != NULL |
| 14281 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14282 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14283 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14284 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14285 | || (relocation + addend - from + max_br_offset | |
| 14286 | < 2 * max_br_offset))) | |
| 14287 | /* Don't use the stub if this branch is in range. */ | |
| 14288 | stub_entry = NULL; | |
| b25116a9 AM |
14289 | |
| 14290 | if (stub_entry != NULL) | |
| 14291 | { | |
| 14292 | /* Munge up the value and addend so that we call the stub | |
| 14293 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14294 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14295 | ||
| 14296 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14297 | relocation += (stub_sec->output_offset | |
| 14298 | + stub_sec->output_section->vma | |
| 14299 | + stub_sec->size - htab->sfpr->size | |
| 14300 | - htab->sfpr->output_offset | |
| 14301 | - htab->sfpr->output_section->vma); | |
| 14302 | else | |
| 14303 | relocation = (stub_entry->stub_offset | |
| 14304 | + stub_sec->output_offset | |
| 14305 | + stub_sec->output_section->vma); | |
| b25116a9 | 14306 | addend = 0; |
| bc30df16 | 14307 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14308 | |
| 954b63d4 | 14309 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 AM |
14310 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) |
| 14311 | && (ALWAYS_EMIT_R2SAVE | |
| 14312 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14313 | && rel + 1 < relend |
| 14314 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14315 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14316 | relocation += 4; | |
| b25116a9 AM |
14317 | } |
| 14318 | ||
| 14319 | if (insn != 0) | |
| 14320 | { | |
| 794e51c0 | 14321 | if (is_isa_v2) |
| 721956f4 | 14322 | { |
| b25116a9 AM |
14323 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14324 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14325 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14326 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14327 | insn |= 0x02 << 21; | |
| 14328 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14329 | insn |= 0x08 << 21; | |
| 14330 | else | |
| 14331 | break; | |
| 14332 | } | |
| 14333 | else | |
| 14334 | { | |
| 14335 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14336 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14337 | insn ^= 0x01 << 21; |
| 721956f4 | 14338 | } |
| b25116a9 | 14339 | |
| 95f0d0d2 | 14340 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 5bd4f169 | 14341 | } |
| e86ce104 | 14342 | |
| 06da1e8e AM |
14343 | /* NOP out calls to undefined weak functions. |
| 14344 | We can thus call a weak function without first | |
| 14345 | checking whether the function is defined. */ | |
| b25116a9 | 14346 | else if (h != NULL |
| 039b3fef | 14347 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14348 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14349 | && r_type == R_PPC64_REL24 |
| 14350 | && relocation == 0 | |
| 4cc603a5 | 14351 | && addend == 0) |
| e86ce104 | 14352 | { |
| 95f0d0d2 | 14353 | bfd_put_32 (input_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14354 | goto copy_reloc; |
| e86ce104 | 14355 | } |
| 65f38f15 AM |
14356 | break; |
| 14357 | } | |
| 5bd4f169 | 14358 | |
| 65f38f15 | 14359 | /* Set `addend'. */ |
| 411e1bfb | 14360 | tls_type = 0; |
| 65f38f15 AM |
14361 | switch (r_type) |
| 14362 | { | |
| 14363 | default: | |
| 25f53a85 | 14364 | info->callbacks->einfo |
| 695344c0 | 14365 | /* xgettext:c-format */ |
| bc30df16 | 14366 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14367 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14368 | |
| 65f38f15 | 14369 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14370 | ret = FALSE; |
| c316a17c | 14371 | goto copy_reloc; |
| 5bd4f169 | 14372 | |
| 65f38f15 | 14373 | case R_PPC64_NONE: |
| 411e1bfb | 14374 | case R_PPC64_TLS: |
| 727fc41e AM |
14375 | case R_PPC64_TLSGD: |
| 14376 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14377 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14378 | case R_PPC64_GNU_VTINHERIT: |
| 14379 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14380 | case R_PPC64_ENTRY: |
| c316a17c | 14381 | goto copy_reloc; |
| 5bd4f169 AM |
14382 | |
| 14383 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14384 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14385 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14386 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14387 | case R_PPC64_GOT_TLSGD16: |
| 14388 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14389 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14390 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14391 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14392 | goto dogot; |
| 14393 | ||
| 14394 | case R_PPC64_GOT_TLSLD16: | |
| 14395 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14396 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14397 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14398 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14399 | goto dogot; |
| 14400 | ||
| 14401 | case R_PPC64_GOT_TPREL16_DS: | |
| 14402 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14403 | case R_PPC64_GOT_TPREL16_HI: | |
| 14404 | case R_PPC64_GOT_TPREL16_HA: | |
| 14405 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14406 | goto dogot; | |
| 14407 | ||
| 14408 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14409 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14410 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14411 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14412 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14413 | goto dogot; | |
| 14414 | ||
| 65f38f15 AM |
14415 | case R_PPC64_GOT16: |
| 14416 | case R_PPC64_GOT16_LO: | |
| 14417 | case R_PPC64_GOT16_HI: | |
| 14418 | case R_PPC64_GOT16_HA: | |
| 14419 | case R_PPC64_GOT16_DS: | |
| 14420 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14421 | dogot: |
| 5bd4f169 AM |
14422 | { |
| 14423 | /* Relocation is to the entry for this symbol in the global | |
| 14424 | offset table. */ | |
| e717da7e | 14425 | asection *got; |
| d881513a | 14426 | bfd_vma *offp; |
| 5bd4f169 | 14427 | bfd_vma off; |
| d881513a | 14428 | unsigned long indx = 0; |
| 927be08e | 14429 | struct got_entry *ent; |
| 65f38f15 | 14430 | |
| d881513a AM |
14431 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14432 | && (h == NULL | |
| f5385ebf | 14433 | || !h->elf.def_dynamic)) |
| 927be08e | 14434 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14435 | else |
| 5bd4f169 | 14436 | { |
| d881513a AM |
14437 | if (h != NULL) |
| 14438 | { | |
| f0158f44 AM |
14439 | if (!htab->elf.dynamic_sections_created |
| 14440 | || h->elf.dynindx == -1 | |
| 14441 | || SYMBOL_REFERENCES_LOCAL (info, &h->elf) | |
| 21d68fcd | 14442 | || UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf)) |
| d881513a AM |
14443 | /* This is actually a static link, or it is a |
| 14444 | -Bsymbolic link and the symbol is defined | |
| 14445 | locally, or the symbol was forced to be local | |
| 14446 | because of a version file. */ | |
| 14447 | ; | |
| 14448 | else | |
| 14449 | { | |
| 039b3fef | 14450 | indx = h->elf.dynindx; |
| d881513a AM |
14451 | unresolved_reloc = FALSE; |
| 14452 | } | |
| 039b3fef | 14453 | ent = h->elf.got.glist; |
| d881513a | 14454 | } |
| 411e1bfb | 14455 | else |
| 5bd4f169 | 14456 | { |
| d881513a AM |
14457 | if (local_got_ents == NULL) |
| 14458 | abort (); | |
| 14459 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14460 | } |
| d881513a AM |
14461 | |
| 14462 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14463 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14464 | && ent->owner == input_bfd |
| d881513a AM |
14465 | && ent->tls_type == tls_type) |
| 14466 | break; | |
| 5bd4f169 | 14467 | } |
| 411e1bfb | 14468 | |
| 927be08e AM |
14469 | if (ent == NULL) |
| 14470 | abort (); | |
| 14471 | if (ent->is_indirect) | |
| 14472 | ent = ent->got.ent; | |
| 14473 | offp = &ent->got.offset; | |
| 14474 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14475 | if (got == NULL) |
| 14476 | abort (); | |
| 14477 | ||
| 411e1bfb AM |
14478 | /* The offset must always be a multiple of 8. We use the |
| 14479 | least significant bit to record whether we have already | |
| 14480 | processed this entry. */ | |
| d881513a | 14481 | off = *offp; |
| 411e1bfb AM |
14482 | if ((off & 1) != 0) |
| 14483 | off &= ~1; | |
| 5bd4f169 AM |
14484 | else |
| 14485 | { | |
| 411e1bfb AM |
14486 | /* Generate relocs for the dynamic linker, except in |
| 14487 | the case of TLSLD where we'll use one entry per | |
| 14488 | module. */ | |
| 25f23106 AM |
14489 | asection *relgot; |
| 14490 | bfd_boolean ifunc; | |
| e717da7e | 14491 | |
| d881513a | 14492 | *offp = off | 1; |
| 25f23106 AM |
14493 | relgot = NULL; |
| 14494 | ifunc = (h != NULL | |
| 14495 | ? h->elf.type == STT_GNU_IFUNC | |
| 14496 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14497 | if (ifunc) |
| 82e66161 AM |
14498 | { |
| 14499 | relgot = htab->elf.irelplt; | |
| 14500 | if (indx == 0) | |
| 14501 | htab->local_ifunc_resolver = 1; | |
| 14502 | else if (is_static_defined (&h->elf)) | |
| 14503 | htab->maybe_local_ifunc_resolver = 1; | |
| 14504 | } | |
| f0158f44 AM |
14505 | else if (indx != 0 |
| 14506 | || (bfd_link_pic (info) | |
| 14507 | && (h == NULL | |
| 21d68fcd | 14508 | || !UNDEFWEAK_NO_DYNAMIC_RELOC (info, &h->elf) |
| f0158f44 AM |
14509 | || (tls_type == (TLS_TLS | TLS_LD) |
| 14510 | && !h->elf.def_dynamic)))) | |
| 19e08130 | 14511 | relgot = ppc64_elf_tdata (ent->owner)->relgot; |
| 25f23106 | 14512 | if (relgot != NULL) |
| 5bd4f169 | 14513 | { |
| e717da7e AM |
14514 | outrel.r_offset = (got->output_section->vma |
| 14515 | + got->output_offset | |
| 411e1bfb | 14516 | + off); |
| 4cc603a5 | 14517 | outrel.r_addend = addend; |
| d881513a | 14518 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14519 | { |
| 411e1bfb | 14520 | outrel.r_addend = 0; |
| e515b051 | 14521 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14522 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14523 | { | |
| e717da7e AM |
14524 | loc = relgot->contents; |
| 14525 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14526 | * sizeof (Elf64_External_Rela)); |
| 14527 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14528 | &outrel, loc); | |
| e515b051 | 14529 | outrel.r_offset += 8; |
| 4cc603a5 | 14530 | outrel.r_addend = addend; |
| d881513a AM |
14531 | outrel.r_info |
| 14532 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14533 | } |
| 411e1bfb | 14534 | } |
| 951fd09b | 14535 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14536 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14537 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14538 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14539 | else if (indx != 0) |
| 14540 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14541 | else | |
| 81407a69 | 14542 | { |
| 25f23106 AM |
14543 | if (ifunc) |
| 14544 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14545 | else | |
| 14546 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14547 | |
| 14548 | /* Write the .got section contents for the sake | |
| 14549 | of prelink. */ | |
| e717da7e | 14550 | loc = got->contents + off; |
| 23fbd6fa JJ |
14551 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14552 | loc); | |
| 81407a69 | 14553 | } |
| 81407a69 AM |
14554 | |
| 14555 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14556 | { |
| 14557 | outrel.r_addend += relocation; | |
| 14558 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14559 | { |
| 14560 | if (htab->elf.tls_sec == NULL) | |
| 14561 | outrel.r_addend = 0; | |
| 14562 | else | |
| 14563 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14564 | } | |
| e515b051 | 14565 | } |
| e717da7e AM |
14566 | loc = relgot->contents; |
| 14567 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14568 | * sizeof (Elf64_External_Rela)); |
| 14569 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14570 | } | |
| 14571 | ||
| ad8e1ba5 | 14572 | /* Init the .got section contents here if we're not |
| 81407a69 | 14573 | emitting a reloc. */ |
| d881513a | 14574 | else |
| 411e1bfb | 14575 | { |
| 4cc603a5 | 14576 | relocation += addend; |
| f0158f44 | 14577 | if (tls_type != 0) |
| 411e1bfb | 14578 | { |
| 989f9879 AM |
14579 | if (htab->elf.tls_sec == NULL) |
| 14580 | relocation = 0; | |
| 14581 | else | |
| 14582 | { | |
| f0158f44 AM |
14583 | if (tls_type & TLS_LD) |
| 14584 | relocation = 0; | |
| 14585 | else | |
| 14586 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 676ee2b5 | 14587 | if (tls_type & TLS_TPREL) |
| 989f9879 AM |
14588 | relocation += DTP_OFFSET - TP_OFFSET; |
| 14589 | } | |
| 5bd4f169 | 14590 | |
| f0158f44 | 14591 | if (tls_type & (TLS_GD | TLS_LD)) |
| 7b609f53 AM |
14592 | { |
| 14593 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14594 | got->contents + off + 8); |
| 676ee2b5 | 14595 | relocation = 1; |
| 7b609f53 | 14596 | } |
| 411e1bfb AM |
14597 | } |
| 14598 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14599 | got->contents + off); |
| 5bd4f169 AM |
14600 | } |
| 14601 | } | |
| 14602 | ||
| 65f38f15 AM |
14603 | if (off >= (bfd_vma) -2) |
| 14604 | abort (); | |
| 14605 | ||
| bf102f86 | 14606 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14607 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14608 | } |
| 65f38f15 AM |
14609 | break; |
| 14610 | ||
| 14611 | case R_PPC64_PLT16_HA: | |
| 14612 | case R_PPC64_PLT16_HI: | |
| 14613 | case R_PPC64_PLT16_LO: | |
| 14614 | case R_PPC64_PLT32: | |
| 14615 | case R_PPC64_PLT64: | |
| 14616 | /* Relocation is to the entry for this symbol in the | |
| 14617 | procedure linkage table. */ | |
| cbf95972 AM |
14618 | { |
| 14619 | struct plt_entry **plt_list = NULL; | |
| 14620 | if (h != NULL) | |
| 14621 | plt_list = &h->elf.plt.plist; | |
| 14622 | else if (local_got_ents != NULL) | |
| 14623 | { | |
| 14624 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14625 | (local_got_ents + symtab_hdr->sh_info); | |
| 14626 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14627 | (local_plt + symtab_hdr->sh_info); | |
| 14628 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14629 | plt_list = local_plt + r_symndx; | |
| 14630 | } | |
| 14631 | if (plt_list) | |
| 14632 | { | |
| 14633 | struct plt_entry *ent; | |
| 65f38f15 | 14634 | |
| cbf95972 AM |
14635 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14636 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14637 | && ent->addend == orig_rel.r_addend) | |
| 14638 | { | |
| 14639 | asection *plt; | |
| 14640 | ||
| 14641 | plt = htab->elf.splt; | |
| 14642 | if (!htab->elf.dynamic_sections_created | |
| 14643 | || h == NULL | |
| 14644 | || h->elf.dynindx == -1) | |
| 14645 | plt = htab->elf.iplt; | |
| 14646 | relocation = (plt->output_section->vma | |
| 14647 | + plt->output_offset | |
| 14648 | + ent->plt.offset); | |
| 14649 | addend = 0; | |
| 14650 | unresolved_reloc = FALSE; | |
| 14651 | break; | |
| 14652 | } | |
| 14653 | } | |
| 14654 | } | |
| 65f38f15 | 14655 | break; |
| 5bd4f169 | 14656 | |
| 0b13192e AM |
14657 | case R_PPC64_TOC: |
| 14658 | /* Relocation value is TOC base. */ | |
| 14659 | relocation = TOCstart; | |
| cf35638d | 14660 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14661 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14662 | else if (unresolved_reloc) |
| 14663 | ; | |
| 6f20ed8a AM |
14664 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14665 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14666 | else |
| 14667 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14668 | goto dodyn; |
| 0b13192e | 14669 | |
| 5bd4f169 AM |
14670 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14671 | which is the address of the start of the TOC plus 0x8000. | |
| 14672 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14673 | in this order. */ | |
| 65f38f15 AM |
14674 | case R_PPC64_TOC16: |
| 14675 | case R_PPC64_TOC16_LO: | |
| 14676 | case R_PPC64_TOC16_HI: | |
| 14677 | case R_PPC64_TOC16_DS: | |
| 14678 | case R_PPC64_TOC16_LO_DS: | |
| 14679 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14680 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14681 | break; |
| 14682 | ||
| 14683 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14684 | case R_PPC64_SECTOFF: |
| 14685 | case R_PPC64_SECTOFF_LO: | |
| 14686 | case R_PPC64_SECTOFF_HI: | |
| 14687 | case R_PPC64_SECTOFF_DS: | |
| 14688 | case R_PPC64_SECTOFF_LO_DS: | |
| 14689 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14690 | if (sec != NULL) |
| 65f38f15 | 14691 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14692 | break; |
| 14693 | ||
| 25f23106 AM |
14694 | case R_PPC64_REL16: |
| 14695 | case R_PPC64_REL16_LO: | |
| 14696 | case R_PPC64_REL16_HI: | |
| 14697 | case R_PPC64_REL16_HA: | |
| a680de9a | 14698 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14699 | break; |
| 14700 | ||
| 721956f4 AM |
14701 | case R_PPC64_REL14: |
| 14702 | case R_PPC64_REL14_BRNTAKEN: | |
| 14703 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14704 | case R_PPC64_REL24: |
| 14705 | break; | |
| 14706 | ||
| 411e1bfb AM |
14707 | case R_PPC64_TPREL16: |
| 14708 | case R_PPC64_TPREL16_LO: | |
| 14709 | case R_PPC64_TPREL16_HI: | |
| 14710 | case R_PPC64_TPREL16_HA: | |
| 14711 | case R_PPC64_TPREL16_DS: | |
| 14712 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14713 | case R_PPC64_TPREL16_HIGH: |
| 14714 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14715 | case R_PPC64_TPREL16_HIGHER: |
| 14716 | case R_PPC64_TPREL16_HIGHERA: | |
| 14717 | case R_PPC64_TPREL16_HIGHEST: | |
| 14718 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14719 | if (h != NULL |
| 14720 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14721 | && h->elf.dynindx == -1) | |
| 14722 | { | |
| 14723 | /* Make this relocation against an undefined weak symbol | |
| 14724 | resolve to zero. This is really just a tweak, since | |
| 14725 | code using weak externs ought to check that they are | |
| 14726 | defined before using them. */ | |
| 14727 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14728 | ||
| 95f0d0d2 | 14729 | insn = bfd_get_32 (input_bfd, p); |
| 766bc656 AM |
14730 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); |
| 14731 | if (insn != 0) | |
| 95f0d0d2 | 14732 | bfd_put_32 (input_bfd, insn, p); |
| 766bc656 AM |
14733 | break; |
| 14734 | } | |
| 989f9879 AM |
14735 | if (htab->elf.tls_sec != NULL) |
| 14736 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 7c8bbca5 AM |
14737 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14738 | libs or with non-local symbols as that will result in | |
| 14739 | DT_TEXTREL being set, but support them anyway. */ | |
| 14740 | goto dodyn; | |
| 411e1bfb AM |
14741 | |
| 14742 | case R_PPC64_DTPREL16: | |
| 14743 | case R_PPC64_DTPREL16_LO: | |
| 14744 | case R_PPC64_DTPREL16_HI: | |
| 14745 | case R_PPC64_DTPREL16_HA: | |
| 14746 | case R_PPC64_DTPREL16_DS: | |
| 14747 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14748 | case R_PPC64_DTPREL16_HIGH: |
| 14749 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14750 | case R_PPC64_DTPREL16_HIGHER: |
| 14751 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14752 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14753 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14754 | if (htab->elf.tls_sec != NULL) |
| 14755 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14756 | break; |
| 14757 | ||
| 45965137 AM |
14758 | case R_PPC64_ADDR64_LOCAL: |
| 14759 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14760 | ? h->elf.other | |
| 14761 | : sym->st_other); | |
| 14762 | break; | |
| 14763 | ||
| e515b051 AM |
14764 | case R_PPC64_DTPMOD64: |
| 14765 | relocation = 1; | |
| 14766 | addend = 0; | |
| 14767 | goto dodyn; | |
| 14768 | ||
| 411e1bfb | 14769 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14770 | if (htab->elf.tls_sec != NULL) |
| 14771 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14772 | goto dodyn; |
| 14773 | ||
| 14774 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14775 | if (htab->elf.tls_sec != NULL) |
| 14776 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 1a0670f3 | 14777 | /* Fall through. */ |
| 411e1bfb | 14778 | |
| 65f38f15 AM |
14779 | /* Relocations that may need to be propagated if this is a |
| 14780 | dynamic object. */ | |
| 04c9666a | 14781 | case R_PPC64_REL30: |
| 65f38f15 AM |
14782 | case R_PPC64_REL32: |
| 14783 | case R_PPC64_REL64: | |
| 14784 | case R_PPC64_ADDR14: | |
| 14785 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14786 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14787 | case R_PPC64_ADDR16: | |
| 14788 | case R_PPC64_ADDR16_DS: | |
| 14789 | case R_PPC64_ADDR16_HA: | |
| 14790 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14791 | case R_PPC64_ADDR16_HIGH: |
| 14792 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14793 | case R_PPC64_ADDR16_HIGHER: |
| 14794 | case R_PPC64_ADDR16_HIGHERA: | |
| 14795 | case R_PPC64_ADDR16_HIGHEST: | |
| 14796 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14797 | case R_PPC64_ADDR16_LO: | |
| 14798 | case R_PPC64_ADDR16_LO_DS: | |
| 14799 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14800 | case R_PPC64_ADDR32: |
| 14801 | case R_PPC64_ADDR64: | |
| 14802 | case R_PPC64_UADDR16: | |
| 14803 | case R_PPC64_UADDR32: | |
| 14804 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14805 | dodyn: |
| 5d1634d7 | 14806 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14807 | break; |
| 14808 | ||
| 41bd81ab AM |
14809 | if (NO_OPD_RELOCS && is_opd) |
| 14810 | break; | |
| 14811 | ||
| 8a9e8e72 | 14812 | if (bfd_link_pic (info) |
| b1b07054 AM |
14813 | ? ((h == NULL |
| 14814 | || h->dyn_relocs != NULL) | |
| 14815 | && ((h != NULL && pc_dynrelocs (h)) | |
| 14816 | || must_be_dyn_reloc (info, r_type))) | |
| 8a9e8e72 AM |
14817 | : (h != NULL |
| 14818 | ? h->dyn_relocs != NULL | |
| d311bc8b | 14819 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) |
| 65f38f15 | 14820 | { |
| b34976b6 | 14821 | bfd_boolean skip, relocate; |
| 65f38f15 | 14822 | asection *sreloc; |
| 1cf1f670 | 14823 | bfd_vma out_off; |
| 82e66161 | 14824 | long indx = 0; |
| 65f38f15 AM |
14825 | |
| 14826 | /* When generating a dynamic object, these relocations | |
| 14827 | are copied into the output file to be resolved at run | |
| 14828 | time. */ | |
| 14829 | ||
| b34976b6 AM |
14830 | skip = FALSE; |
| 14831 | relocate = FALSE; | |
| 65f38f15 | 14832 | |
| 1cf1f670 AM |
14833 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14834 | input_section, rel->r_offset); | |
| 14835 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14836 | skip = TRUE; |
| 1cf1f670 | 14837 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14838 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14839 | out_off += (input_section->output_section->vma |
| 14840 | + input_section->output_offset); | |
| 14841 | outrel.r_offset = out_off; | |
| 411e1bfb | 14842 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14843 | |
| 1cf1f670 AM |
14844 | /* Optimize unaligned reloc use. */ |
| 14845 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14846 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14847 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14848 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14849 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14850 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14851 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14852 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14853 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14854 | ||
| 65f38f15 | 14855 | if (skip) |
| 0bb2d96a | 14856 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14857 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14858 | && !is_opd |
| 14859 | && r_type != R_PPC64_TOC) | |
| 14acf4dc | 14860 | { |
| 82e66161 AM |
14861 | indx = h->elf.dynindx; |
| 14862 | BFD_ASSERT (indx != -1); | |
| 14863 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14acf4dc | 14864 | } |
| 65f38f15 AM |
14865 | else |
| 14866 | { | |
| 41bd81ab AM |
14867 | /* This symbol is local, or marked to become local, |
| 14868 | or this is an opd section reloc which must point | |
| 14869 | at a local function. */ | |
| 65f38f15 | 14870 | outrel.r_addend += relocation; |
| e86ce104 | 14871 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14872 | { |
| 3fad3c7c | 14873 | if (is_opd && h != NULL) |
| afbe61cf AM |
14874 | { |
| 14875 | /* Lie about opd entries. This case occurs | |
| 14876 | when building shared libraries and we | |
| 14877 | reference a function in another shared | |
| 3fad3c7c AM |
14878 | lib. The same thing happens for a weak |
| 14879 | definition in an application that's | |
| 14880 | overridden by a strong definition in a | |
| 14881 | shared lib. (I believe this is a generic | |
| 14882 | bug in binutils handling of weak syms.) | |
| 14883 | In these cases we won't use the opd | |
| 1e2f5b6e | 14884 | entry in this lib. */ |
| b34976b6 | 14885 | unresolved_reloc = FALSE; |
| afbe61cf | 14886 | } |
| 25f23106 AM |
14887 | if (!is_opd |
| 14888 | && r_type == R_PPC64_ADDR64 | |
| 14889 | && (h != NULL | |
| 14890 | ? h->elf.type == STT_GNU_IFUNC | |
| 14891 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14892 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14893 | else | |
| 14894 | { | |
| 14895 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14896 | |
| 25f23106 AM |
14897 | /* We need to relocate .opd contents for ld.so. |
| 14898 | Prelink also wants simple and consistent rules | |
| 14899 | for relocs. This make all RELATIVE relocs have | |
| 14900 | *r_offset equal to r_addend. */ | |
| 14901 | relocate = TRUE; | |
| 14902 | } | |
| 65f38f15 AM |
14903 | } |
| 14904 | else | |
| 14905 | { | |
| 25f23106 AM |
14906 | if (h != NULL |
| 14907 | ? h->elf.type == STT_GNU_IFUNC | |
| 14908 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14909 | { | |
| 25f53a85 | 14910 | info->callbacks->einfo |
| 695344c0 | 14911 | /* xgettext:c-format */ |
| 174d0a74 | 14912 | (_("%H: %s for indirect " |
| bc30df16 | 14913 | "function `%T' unsupported\n"), |
| 25f53a85 | 14914 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14915 | ppc64_elf_howto_table[r_type]->name, |
| 14916 | sym_name); | |
| 14917 | ret = FALSE; | |
| 14918 | } | |
| cf35638d | 14919 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14920 | ; |
| 14921 | else if (sec == NULL || sec->owner == NULL) | |
| 14922 | { | |
| 14923 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14924 | return FALSE; |
| 65f38f15 AM |
14925 | } |
| 14926 | else | |
| 14927 | { | |
| 14928 | asection *osec; | |
| 14929 | ||
| 14930 | osec = sec->output_section; | |
| 14931 | indx = elf_section_data (osec)->dynindx; | |
| 14932 | ||
| 74541ad4 AM |
14933 | if (indx == 0) |
| 14934 | { | |
| 14935 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14936 | && htab->elf.data_index_section != NULL) | |
| 14937 | osec = htab->elf.data_index_section; | |
| 14938 | else | |
| 14939 | osec = htab->elf.text_index_section; | |
| 14940 | indx = elf_section_data (osec)->dynindx; | |
| 14941 | } | |
| 14942 | BFD_ASSERT (indx != 0); | |
| 14943 | ||
| 65f38f15 AM |
14944 | /* We are turning this relocation into one |
| 14945 | against a section symbol, so subtract out | |
| 14946 | the output section's address but not the | |
| 14947 | offset of the input section in the output | |
| 14948 | section. */ | |
| 14949 | outrel.r_addend -= osec->vma; | |
| 14950 | } | |
| 14951 | ||
| 14952 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14953 | } | |
| 14954 | } | |
| 14955 | ||
| 14956 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14957 | if (h != NULL |
| 14958 | ? h->elf.type == STT_GNU_IFUNC | |
| 14959 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 82e66161 AM |
14960 | { |
| 14961 | sreloc = htab->elf.irelplt; | |
| 14962 | if (indx == 0) | |
| 14963 | htab->local_ifunc_resolver = 1; | |
| 14964 | else if (is_static_defined (&h->elf)) | |
| 14965 | htab->maybe_local_ifunc_resolver = 1; | |
| 14966 | } | |
| 65f38f15 AM |
14967 | if (sreloc == NULL) |
| 14968 | abort (); | |
| 14969 | ||
| dfbb6ac9 AM |
14970 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14971 | >= sreloc->size) | |
| 14972 | abort (); | |
| 947216bf AM |
14973 | loc = sreloc->contents; |
| 14974 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14975 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14976 | ||
| 14977 | /* If this reloc is against an external symbol, it will | |
| 14978 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14979 | anything now. However, for the sake of prelink ensure |
| 14980 | that the section contents are a known value. */ | |
| 65f38f15 | 14981 | if (! relocate) |
| 81407a69 AM |
14982 | { |
| 14983 | unresolved_reloc = FALSE; | |
| 14984 | /* The value chosen here is quite arbitrary as ld.so | |
| 14985 | ignores section contents except for the special | |
| 14986 | case of .opd where the contents might be accessed | |
| 14987 | before relocation. Choose zero, as that won't | |
| 14988 | cause reloc overflow. */ | |
| 14989 | relocation = 0; | |
| 14990 | addend = 0; | |
| 14991 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14992 | to improve backward compatibility with older | |
| 14993 | versions of ld. */ | |
| 14994 | if (r_type == R_PPC64_ADDR64) | |
| 14995 | addend = outrel.r_addend; | |
| 14996 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14997 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| f0158f44 | 14998 | addend = outrel.r_offset; |
| 81407a69 | 14999 | } |
| 65f38f15 | 15000 | } |
| 5bd4f169 AM |
15001 | break; |
| 15002 | ||
| 65f38f15 AM |
15003 | case R_PPC64_COPY: |
| 15004 | case R_PPC64_GLOB_DAT: | |
| 15005 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 15006 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
15007 | case R_PPC64_RELATIVE: |
| 15008 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 15009 | files. */ | |
| ae9a127f | 15010 | /* Fall through. */ |
| 65f38f15 AM |
15011 | |
| 15012 | case R_PPC64_PLTGOT16: | |
| 15013 | case R_PPC64_PLTGOT16_DS: | |
| 15014 | case R_PPC64_PLTGOT16_HA: | |
| 15015 | case R_PPC64_PLTGOT16_HI: | |
| 15016 | case R_PPC64_PLTGOT16_LO: | |
| 15017 | case R_PPC64_PLTGOT16_LO_DS: | |
| 15018 | case R_PPC64_PLTREL32: | |
| 15019 | case R_PPC64_PLTREL64: | |
| 15020 | /* These ones haven't been implemented yet. */ | |
| 15021 | ||
| 25f53a85 | 15022 | info->callbacks->einfo |
| 695344c0 | 15023 | /* xgettext:c-format */ |
| bc30df16 | 15024 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 15025 | input_bfd, |
| 4ce794b7 | 15026 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
15027 | |
| 15028 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 15029 | ret = FALSE; |
| c316a17c | 15030 | goto copy_reloc; |
| 65f38f15 | 15031 | } |
| 5bd4f169 | 15032 | |
| 67f0cbdb AM |
15033 | /* Multi-instruction sequences that access the TOC can be |
| 15034 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 15035 | to nop; addi rb,r2,x; */ | |
| 9a23f96e | 15036 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 67f0cbdb AM |
15037 | switch (r_type) |
| 15038 | { | |
| 15039 | default: | |
| 15040 | break; | |
| 15041 | ||
| 15042 | case R_PPC64_GOT_TLSLD16_HI: | |
| 15043 | case R_PPC64_GOT_TLSGD16_HI: | |
| 15044 | case R_PPC64_GOT_TPREL16_HI: | |
| 15045 | case R_PPC64_GOT_DTPREL16_HI: | |
| 15046 | case R_PPC64_GOT16_HI: | |
| 15047 | case R_PPC64_TOC16_HI: | |
| 15048 | /* These relocs would only be useful if building up an | |
| 15049 | offset to later add to r2, perhaps in an indexed | |
| 15050 | addressing mode instruction. Don't try to optimize. | |
| 15051 | Unfortunately, the possibility of someone building up an | |
| 15052 | offset like this or even with the HA relocs, means that | |
| 15053 | we need to check the high insn when optimizing the low | |
| 15054 | insn. */ | |
| 15055 | break; | |
| 15056 | ||
| 15057 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15058 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15059 | case R_PPC64_GOT_TPREL16_HA: | |
| 15060 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15061 | case R_PPC64_GOT16_HA: | |
| 15062 | case R_PPC64_TOC16_HA: | |
| 98528052 | 15063 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15064 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
15065 | { |
| 15066 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15067 | bfd_put_32 (input_bfd, NOP, p); | |
| 15068 | } | |
| 67f0cbdb AM |
15069 | break; |
| 15070 | ||
| 15071 | case R_PPC64_GOT_TLSLD16_LO: | |
| 15072 | case R_PPC64_GOT_TLSGD16_LO: | |
| 15073 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15074 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15075 | case R_PPC64_GOT16_LO: | |
| 15076 | case R_PPC64_GOT16_LO_DS: | |
| 15077 | case R_PPC64_TOC16_LO: | |
| 15078 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 15079 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 15080 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
15081 | { |
| 15082 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15083 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
15084 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 15085 | { | |
| 15086 | /* Transform addic to addi when we change reg. */ | |
| 15087 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 15088 | insn |= (14u << 26) | (2 << 16); | |
| 15089 | } | |
| 15090 | else | |
| 67f0cbdb | 15091 | { |
| 98528052 AM |
15092 | insn &= ~(0x1f << 16); |
| 15093 | insn |= 2 << 16; | |
| 67f0cbdb | 15094 | } |
| 560c8763 | 15095 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
15096 | } |
| 15097 | break; | |
| 9a23f96e AM |
15098 | |
| 15099 | case R_PPC64_TPREL16_HA: | |
| 15100 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15101 | { | |
| 15102 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15103 | insn = bfd_get_32 (input_bfd, p); | |
| 15104 | if ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 15105 | != ((15u << 26) | (13 << 16)) /* addis rt,13,imm */) | |
| 15106 | /* xgettext:c-format */ | |
| 15107 | info->callbacks->minfo | |
| 15108 | (_("%H: warning: %s unexpected insn %#x.\n"), | |
| 15109 | input_bfd, input_section, rel->r_offset, howto->name, insn); | |
| 15110 | else | |
| 15111 | bfd_put_32 (input_bfd, NOP, p); | |
| 15112 | } | |
| 15113 | break; | |
| 15114 | ||
| 15115 | case R_PPC64_TPREL16_LO: | |
| 15116 | case R_PPC64_TPREL16_LO_DS: | |
| 15117 | if (htab->do_tls_opt && relocation + addend + 0x8000 < 0x10000) | |
| 15118 | { | |
| 15119 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 15120 | insn = bfd_get_32 (input_bfd, p); | |
| 15121 | insn &= ~(0x1f << 16); | |
| 15122 | insn |= 13 << 16; | |
| 15123 | bfd_put_32 (input_bfd, insn, p); | |
| 15124 | } | |
| 15125 | break; | |
| 67f0cbdb AM |
15126 | } |
| 15127 | ||
| 65f38f15 AM |
15128 | /* Do any further special processing. */ |
| 15129 | switch (r_type) | |
| 15130 | { | |
| 15131 | default: | |
| 15132 | break; | |
| 15133 | ||
| 25f23106 | 15134 | case R_PPC64_REL16_HA: |
| a680de9a | 15135 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
15136 | case R_PPC64_ADDR16_HA: |
| 15137 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
15138 | case R_PPC64_ADDR16_HIGHERA: |
| 15139 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
15140 | case R_PPC64_TOC16_HA: |
| 15141 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 15142 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 15143 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 15144 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 15145 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
15146 | case R_PPC64_DTPREL16_HA: |
| 15147 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 15148 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 15149 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
15150 | /* It's just possible that this symbol is a weak symbol |
| 15151 | that's not actually defined anywhere. In that case, | |
| 15152 | 'sec' would be NULL, and we should leave the symbol | |
| 15153 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
15154 | if (sec == NULL) |
| 15155 | break; | |
| 1a0670f3 | 15156 | /* Fall through. */ |
| 5c5f6e17 AM |
15157 | |
| 15158 | case R_PPC64_GOT16_HA: | |
| 15159 | case R_PPC64_PLTGOT16_HA: | |
| 15160 | case R_PPC64_PLT16_HA: | |
| 15161 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15162 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15163 | case R_PPC64_GOT_TPREL16_HA: | |
| 15164 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15165 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15166 | Bits 0:15 are not used. */ | |
| 15167 | addend += 0x8000; | |
| 65f38f15 AM |
15168 | break; |
| 15169 | ||
| 15170 | case R_PPC64_ADDR16_DS: | |
| 15171 | case R_PPC64_ADDR16_LO_DS: | |
| 15172 | case R_PPC64_GOT16_DS: | |
| 15173 | case R_PPC64_GOT16_LO_DS: | |
| 15174 | case R_PPC64_PLT16_LO_DS: | |
| 15175 | case R_PPC64_SECTOFF_DS: | |
| 15176 | case R_PPC64_SECTOFF_LO_DS: | |
| 15177 | case R_PPC64_TOC16_DS: | |
| 15178 | case R_PPC64_TOC16_LO_DS: | |
| 15179 | case R_PPC64_PLTGOT16_DS: | |
| 15180 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15181 | case R_PPC64_GOT_TPREL16_DS: |
| 15182 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15183 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15184 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15185 | case R_PPC64_TPREL16_DS: | |
| 15186 | case R_PPC64_TPREL16_LO_DS: | |
| 15187 | case R_PPC64_DTPREL16_DS: | |
| 15188 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15189 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15190 | mask = 3; | |
| a680de9a PB |
15191 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15192 | the value must be a multiple of 16. This is somewhat of | |
| 15193 | a hack, but the "correct" way to do this by defining _DQ | |
| 15194 | forms of all the _DS relocs bloats all reloc switches in | |
| 15195 | this file. It doesn't make much sense to use these | |
| 15196 | relocs in data, so testing the insn should be safe. */ | |
| 15197 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15198 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15199 | mask = 15; |
| a680de9a PB |
15200 | relocation += addend; |
| 15201 | addend = insn & (mask ^ 3); | |
| 15202 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15203 | { |
| a680de9a | 15204 | relocation ^= relocation & mask; |
| 25f53a85 | 15205 | info->callbacks->einfo |
| 695344c0 | 15206 | /* xgettext:c-format */ |
| 174d0a74 | 15207 | (_("%H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15208 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15209 | howto->name, |
| adadcc0c | 15210 | mask + 1); |
| 65f38f15 | 15211 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15212 | ret = FALSE; |
| c316a17c | 15213 | goto copy_reloc; |
| 65f38f15 AM |
15214 | } |
| 15215 | break; | |
| 5bd4f169 AM |
15216 | } |
| 15217 | ||
| 239e1f3a AM |
15218 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15219 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15220 | not process them. */ | |
| 65f38f15 | 15221 | if (unresolved_reloc |
| 239e1f3a | 15222 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15223 | && h->elf.def_dynamic) |
| 15224 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15225 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15226 | { |
| 25f53a85 | 15227 | info->callbacks->einfo |
| 695344c0 | 15228 | /* xgettext:c-format */ |
| 174d0a74 | 15229 | (_("%H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15230 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15231 | howto->name, |
| 039b3fef | 15232 | h->elf.root.root.string); |
| b34976b6 | 15233 | ret = FALSE; |
| 9c07fe7c | 15234 | } |
| 5bd4f169 | 15235 | |
| b80eed39 AM |
15236 | /* 16-bit fields in insns mostly have signed values, but a |
| 15237 | few insns have 16-bit unsigned values. Really, we should | |
| 15238 | have different reloc types. */ | |
| 15239 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15240 | && howto->dst_mask == 0xffff | |
| 15241 | && (input_section->flags & SEC_CODE) != 0) | |
| 15242 | { | |
| 15243 | enum complain_overflow complain = complain_overflow_signed; | |
| 15244 | ||
| 15245 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15246 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15247 | complain = complain_overflow_bitfield; | |
| 15248 | else if (howto->rightshift == 0 | |
| 15249 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15250 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15251 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15252 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15253 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15254 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15255 | complain = complain_overflow_unsigned; |
| 15256 | if (howto->complain_on_overflow != complain) | |
| 15257 | { | |
| 15258 | alt_howto = *howto; | |
| 15259 | alt_howto.complain_on_overflow = complain; | |
| 15260 | howto = &alt_howto; | |
| 15261 | } | |
| 15262 | } | |
| 15263 | ||
| a680de9a PB |
15264 | if (r_type == R_PPC64_REL16DX_HA) |
| 15265 | { | |
| 15266 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15267 | if (rel->r_offset + 4 > input_section->size) | |
| 15268 | r = bfd_reloc_outofrange; | |
| 15269 | else | |
| 15270 | { | |
| 15271 | relocation += addend; | |
| 15272 | relocation -= (rel->r_offset | |
| 15273 | + input_section->output_offset | |
| 15274 | + input_section->output_section->vma); | |
| 3de43e7b | 15275 | relocation = (bfd_signed_vma) relocation >> 16; |
| a680de9a PB |
15276 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); |
| 15277 | insn &= ~0x1fffc1; | |
| 3de43e7b | 15278 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); |
| a680de9a PB |
15279 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); |
| 15280 | r = bfd_reloc_ok; | |
| 3de43e7b | 15281 | if (relocation + 0x8000 > 0xffff) |
| a680de9a PB |
15282 | r = bfd_reloc_overflow; |
| 15283 | } | |
| 15284 | } | |
| 15285 | else | |
| 15286 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15287 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15288 | |
| ef60b7ff | 15289 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15290 | { |
| bc30df16 | 15291 | char *more_info = NULL; |
| b80eed39 | 15292 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15293 | |
| 15294 | if (reloc_dest != DEST_NORMAL) | |
| 15295 | { | |
| 15296 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15297 | if (more_info != NULL) | |
| 15298 | { | |
| 15299 | strcpy (more_info, reloc_name); | |
| 15300 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15301 | ? " (OPD)" : " (stub)")); | |
| 15302 | reloc_name = more_info; | |
| 15303 | } | |
| 15304 | } | |
| 15305 | ||
| cd27b276 | 15306 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15307 | { |
| 8131c122 AM |
15308 | /* On code like "if (foo) foo();" don't report overflow |
| 15309 | on a branch to zero when foo is undefined. */ | |
| 15310 | if (!warned | |
| 15311 | && (reloc_dest == DEST_STUB | |
| 15312 | || !(h != NULL | |
| 15313 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15314 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15315 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15316 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15317 | sym_name, reloc_name, | |
| 15318 | orig_rel.r_addend, | |
| 15319 | input_bfd, input_section, | |
| 15320 | rel->r_offset); | |
| ef60b7ff AM |
15321 | } |
| 15322 | else | |
| 15323 | { | |
| 25f53a85 | 15324 | info->callbacks->einfo |
| 695344c0 | 15325 | /* xgettext:c-format */ |
| 174d0a74 | 15326 | (_("%H: %s against `%T': error %d\n"), |
| 25f53a85 | 15327 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15328 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15329 | ret = FALSE; |
| ef60b7ff | 15330 | } |
| bc30df16 AM |
15331 | if (more_info != NULL) |
| 15332 | free (more_info); | |
| 5bd4f169 | 15333 | } |
| c316a17c AM |
15334 | copy_reloc: |
| 15335 | if (wrel != rel) | |
| 15336 | *wrel = *rel; | |
| 15337 | } | |
| 15338 | ||
| 15339 | if (wrel != rel) | |
| 15340 | { | |
| 15341 | Elf_Internal_Shdr *rel_hdr; | |
| 15342 | size_t deleted = rel - wrel; | |
| 15343 | ||
| 15344 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15345 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15346 | if (rel_hdr->sh_size == 0) | |
| 15347 | { | |
| 15348 | /* It is too late to remove an empty reloc section. Leave | |
| 15349 | one NONE reloc. | |
| 15350 | ??? What is wrong with an empty section??? */ | |
| 15351 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15352 | deleted -= 1; | |
| 15353 | } | |
| 15354 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15355 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15356 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15357 | } |
| 15358 | ||
| 645ea6a9 AM |
15359 | /* If we're emitting relocations, then shortly after this function |
| 15360 | returns, reloc offsets and addends for this section will be | |
| 15361 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15362 | file rather than the input. Save a copy of the relocs for |
| 15363 | opd_entry_value. */ | |
| 0e1862bb | 15364 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15365 | { |
| 15366 | bfd_size_type amt; | |
| 15367 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15368 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15369 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15370 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15371 | if (rel == NULL) |
| 15372 | return FALSE; | |
| 15373 | memcpy (rel, relocs, amt); | |
| 15374 | } | |
| 5bd4f169 AM |
15375 | return ret; |
| 15376 | } | |
| 15377 | ||
| 754021d0 AM |
15378 | /* Adjust the value of any local symbols in opd sections. */ |
| 15379 | ||
| 6e0b88f1 | 15380 | static int |
| 754021d0 AM |
15381 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15382 | const char *name ATTRIBUTE_UNUSED, | |
| 15383 | Elf_Internal_Sym *elfsym, | |
| 15384 | asection *input_sec, | |
| 15385 | struct elf_link_hash_entry *h) | |
| 15386 | { | |
| 74f0fb50 AM |
15387 | struct _opd_sec_data *opd; |
| 15388 | long adjust; | |
| 754021d0 AM |
15389 | bfd_vma value; |
| 15390 | ||
| 4025353c | 15391 | if (h != NULL) |
| 6e0b88f1 | 15392 | return 1; |
| 4025353c | 15393 | |
| 74f0fb50 AM |
15394 | opd = get_opd_info (input_sec); |
| 15395 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15396 | return 1; |
| 754021d0 AM |
15397 | |
| 15398 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15399 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15400 | value -= input_sec->output_section->vma; |
| 15401 | ||
| 51aecdc5 | 15402 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15403 | if (adjust == -1) |
| 6e0b88f1 AM |
15404 | return 2; |
| 15405 | ||
| 15406 | elfsym->st_value += adjust; | |
| 15407 | return 1; | |
| 754021d0 AM |
15408 | } |
| 15409 | ||
| 5bd4f169 AM |
15410 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15411 | dynamic sections here. */ | |
| 15412 | ||
| b34976b6 | 15413 | static bfd_boolean |
| 4ce794b7 AM |
15414 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15415 | struct bfd_link_info *info, | |
| 15416 | struct elf_link_hash_entry *h, | |
| 4aef7643 | 15417 | Elf_Internal_Sym *sym) |
| 5bd4f169 | 15418 | { |
| 65f38f15 | 15419 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15420 | struct plt_entry *ent; |
| 15421 | Elf_Internal_Rela rela; | |
| 15422 | bfd_byte *loc; | |
| 5bd4f169 | 15423 | |
| 65f38f15 | 15424 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15425 | if (htab == NULL) |
| 15426 | return FALSE; | |
| 5bd4f169 | 15427 | |
| 8387904d AM |
15428 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15429 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15430 | { | |
| 15431 | /* This symbol has an entry in the procedure linkage | |
| 15432 | table. Set it up. */ | |
| e054468f AM |
15433 | if (!htab->elf.dynamic_sections_created |
| 15434 | || h->dynindx == -1) | |
| 15435 | { | |
| 15436 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15437 | && h->def_regular | |
| 15438 | && (h->root.type == bfd_link_hash_defined | |
| 15439 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15440 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15441 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15442 | + ent->plt.offset); |
| ee67d69a AM |
15443 | if (htab->opd_abi) |
| 15444 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15445 | else | |
| 15446 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15447 | rela.r_addend = (h->root.u.def.value |
| 15448 | + h->root.u.def.section->output_offset | |
| 15449 | + h->root.u.def.section->output_section->vma | |
| 15450 | + ent->addend); | |
| 33e44f2e AM |
15451 | loc = (htab->elf.irelplt->contents |
| 15452 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15453 | * sizeof (Elf64_External_Rela))); |
| 82e66161 | 15454 | htab->local_ifunc_resolver = 1; |
| e054468f AM |
15455 | } |
| 15456 | else | |
| 15457 | { | |
| 33e44f2e AM |
15458 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15459 | + htab->elf.splt->output_offset | |
| 25f23106 | 15460 | + ent->plt.offset); |
| e054468f AM |
15461 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15462 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15463 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15464 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15465 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| 82e66161 AM |
15466 | if (h->type == STT_GNU_IFUNC && is_static_defined (h)) |
| 15467 | htab->maybe_local_ifunc_resolver = 1; | |
| e054468f | 15468 | } |
| 8387904d | 15469 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15470 | |
| 15471 | if (!htab->opd_abi) | |
| 15472 | { | |
| 15473 | if (!h->def_regular) | |
| 15474 | { | |
| 15475 | /* Mark the symbol as undefined, rather than as | |
| 15476 | defined in glink. Leave the value if there were | |
| 15477 | any relocations where pointer equality matters | |
| 15478 | (this is a clue for the dynamic linker, to make | |
| 15479 | function pointer comparisons work between an | |
| 15480 | application and shared library), otherwise set it | |
| 15481 | to zero. */ | |
| 15482 | sym->st_shndx = SHN_UNDEF; | |
| 15483 | if (!h->pointer_equality_needed) | |
| 15484 | sym->st_value = 0; | |
| 15485 | else if (!h->ref_regular_nonweak) | |
| 15486 | { | |
| 15487 | /* This breaks function pointer comparisons, but | |
| 15488 | that is better than breaking tests for a NULL | |
| 15489 | function pointer. */ | |
| 15490 | sym->st_value = 0; | |
| 15491 | } | |
| 15492 | } | |
| 15493 | } | |
| 8387904d | 15494 | } |
| 5bd4f169 | 15495 | |
| f5385ebf | 15496 | if (h->needs_copy) |
| 5bd4f169 | 15497 | { |
| 65f38f15 | 15498 | /* This symbol needs a copy reloc. Set it up. */ |
| 5474d94f | 15499 | asection *srel; |
| 5bd4f169 | 15500 | |
| 65f38f15 AM |
15501 | if (h->dynindx == -1 |
| 15502 | || (h->root.type != bfd_link_hash_defined | |
| 15503 | && h->root.type != bfd_link_hash_defweak) | |
| 5474d94f AM |
15504 | || htab->elf.srelbss == NULL |
| 15505 | || htab->elf.sreldynrelro == NULL) | |
| 65f38f15 | 15506 | abort (); |
| 5bd4f169 AM |
15507 | |
| 15508 | rela.r_offset = (h->root.u.def.value | |
| 15509 | + h->root.u.def.section->output_section->vma | |
| 15510 | + h->root.u.def.section->output_offset); | |
| 15511 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15512 | rela.r_addend = 0; | |
| afbf7e8e | 15513 | if (h->root.u.def.section == htab->elf.sdynrelro) |
| 5474d94f AM |
15514 | srel = htab->elf.sreldynrelro; |
| 15515 | else | |
| 15516 | srel = htab->elf.srelbss; | |
| 15517 | loc = srel->contents; | |
| 15518 | loc += srel->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15519 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15520 | } |
| 15521 | ||
| b34976b6 | 15522 | return TRUE; |
| 5bd4f169 AM |
15523 | } |
| 15524 | ||
| 65f38f15 AM |
15525 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15526 | dynamic linker, before writing them out. */ | |
| 15527 | ||
| 15528 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15529 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15530 | const asection *rel_sec, | |
| 15531 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15532 | { |
| 04c9666a | 15533 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15534 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15535 | ||
| 33e44f2e | 15536 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15537 | return reloc_class_ifunc; |
| a33d1f77 | 15538 | |
| 4ce794b7 | 15539 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15540 | switch (r_type) |
| 65f38f15 AM |
15541 | { |
| 15542 | case R_PPC64_RELATIVE: | |
| 15543 | return reloc_class_relative; | |
| 15544 | case R_PPC64_JMP_SLOT: | |
| 15545 | return reloc_class_plt; | |
| 15546 | case R_PPC64_COPY: | |
| 15547 | return reloc_class_copy; | |
| 15548 | default: | |
| 15549 | return reloc_class_normal; | |
| 15550 | } | |
| 15551 | } | |
| 15552 | ||
| 5bd4f169 AM |
15553 | /* Finish up the dynamic sections. */ |
| 15554 | ||
| b34976b6 | 15555 | static bfd_boolean |
| 4ce794b7 AM |
15556 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15557 | struct bfd_link_info *info) | |
| 5bd4f169 | 15558 | { |
| 65f38f15 AM |
15559 | struct ppc_link_hash_table *htab; |
| 15560 | bfd *dynobj; | |
| 5bd4f169 | 15561 | asection *sdyn; |
| 5bd4f169 | 15562 | |
| 65f38f15 | 15563 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15564 | if (htab == NULL) |
| 15565 | return FALSE; | |
| 15566 | ||
| 65f38f15 | 15567 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15568 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15569 | |
| 65f38f15 | 15570 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15571 | { |
| 5bd4f169 AM |
15572 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15573 | ||
| 33e44f2e | 15574 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15575 | abort (); |
| 5bd4f169 AM |
15576 | |
| 15577 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15578 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15579 | for (; dyncon < dynconend; dyncon++) |
| 15580 | { | |
| 15581 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15582 | asection *s; |
| 5bd4f169 AM |
15583 | |
| 15584 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15585 | ||
| 15586 | switch (dyn.d_tag) | |
| 15587 | { | |
| 65f38f15 AM |
15588 | default: |
| 15589 | continue; | |
| 5bd4f169 | 15590 | |
| 5d1634d7 | 15591 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15592 | s = htab->glink; |
| 6348e046 | 15593 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15594 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15595 | of glink rather than the first entry point, which is | |
| 15596 | what ld.so needs, and now have a bigger stub to | |
| 15597 | support automatic multiple TOCs. */ | |
| b9e5796b | 15598 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15599 | break; |
| 15600 | ||
| 19397422 AM |
15601 | case DT_PPC64_OPD: |
| 15602 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15603 | if (s == NULL) |
| 15604 | continue; | |
| 15605 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15606 | break; |
| 15607 | ||
| e8910a83 AM |
15608 | case DT_PPC64_OPT: |
| 15609 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15610 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| f378ab09 AM |
15611 | if (htab->has_plt_localentry0) |
| 15612 | dyn.d_un.d_val |= PPC64_OPT_LOCALENTRY; | |
| e8910a83 AM |
15613 | break; |
| 15614 | ||
| 19397422 AM |
15615 | case DT_PPC64_OPDSZ: |
| 15616 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15617 | if (s == NULL) |
| 15618 | continue; | |
| eea6121a | 15619 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15620 | break; |
| 15621 | ||
| 65f38f15 | 15622 | case DT_PLTGOT: |
| 33e44f2e | 15623 | s = htab->elf.splt; |
| 6348e046 | 15624 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15625 | break; |
| 15626 | ||
| 15627 | case DT_JMPREL: | |
| 33e44f2e | 15628 | s = htab->elf.srelplt; |
| 6348e046 | 15629 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15630 | break; |
| 5bd4f169 | 15631 | |
| 65f38f15 | 15632 | case DT_PLTRELSZ: |
| 33e44f2e | 15633 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 | 15634 | break; |
| 82e66161 AM |
15635 | |
| 15636 | case DT_TEXTREL: | |
| 15637 | if (htab->local_ifunc_resolver) | |
| 15638 | info->callbacks->einfo | |
| 15639 | (_("%X%P: text relocations and GNU indirect " | |
| 15640 | "functions will result in a segfault at runtime\n")); | |
| 15641 | else if (htab->maybe_local_ifunc_resolver) | |
| 15642 | info->callbacks->einfo | |
| 15643 | (_("%P: warning: text relocations and GNU indirect " | |
| 15644 | "functions may result in a segfault at runtime\n")); | |
| 15645 | continue; | |
| 5bd4f169 | 15646 | } |
| 5bd4f169 | 15647 | |
| 65f38f15 | 15648 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15649 | } |
| 5bd4f169 AM |
15650 | } |
| 15651 | ||
| 6528b6eb AM |
15652 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0 |
| 15653 | && htab->elf.sgot->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15654 | { |
| 15655 | /* Fill in the first entry in the global offset table. | |
| 15656 | We use it to hold the link-time TOCbase. */ | |
| 15657 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15658 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15659 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15660 | |
| 15661 | /* Set .got entry size. */ | |
| 33e44f2e | 15662 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15663 | } |
| 15664 | ||
| 6528b6eb AM |
15665 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0 |
| 15666 | && htab->elf.splt->output_section != bfd_abs_section_ptr) | |
| 5d1634d7 AM |
15667 | { |
| 15668 | /* Set .plt entry size. */ | |
| 33e44f2e | 15669 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15670 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15671 | } |
| 15672 | ||
| 84f5d08e AM |
15673 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15674 | brlt ourselves if emitrelocations. */ | |
| 15675 | if (htab->brlt != NULL | |
| 15676 | && htab->brlt->reloc_count != 0 | |
| 15677 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15678 | htab->brlt, | |
| d4730f92 | 15679 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15680 | elf_section_data (htab->brlt)->relocs, |
| 15681 | NULL)) | |
| 15682 | return FALSE; | |
| 15683 | ||
| 176a0d42 AM |
15684 | if (htab->glink != NULL |
| 15685 | && htab->glink->reloc_count != 0 | |
| 15686 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15687 | htab->glink, | |
| d4730f92 | 15688 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15689 | elf_section_data (htab->glink)->relocs, |
| 15690 | NULL)) | |
| 15691 | return FALSE; | |
| 15692 | ||
| 58d180e8 | 15693 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15694 | && htab->glink_eh_frame->size != 0) |
| 15695 | { | |
| 15696 | bfd_vma val; | |
| 15697 | bfd_byte *p; | |
| d4aaa2a0 | 15698 | struct map_stub *group; |
| 2e0ce1c8 | 15699 | size_t align = 4; |
| da44f4e5 | 15700 | |
| 2e0ce1c8 AM |
15701 | p = htab->glink_eh_frame->contents; |
| 15702 | p += (sizeof (glink_eh_frame_cie) + align - 1) & -align; | |
| d4aaa2a0 AM |
15703 | |
| 15704 | for (group = htab->group; group != NULL; group = group->next) | |
| 15705 | if (group->stub_sec != NULL) | |
| da44f4e5 | 15706 | { |
| da44f4e5 | 15707 | /* Offset to stub section. */ |
| d4aaa2a0 AM |
15708 | val = (group->stub_sec->output_section->vma |
| 15709 | + group->stub_sec->output_offset); | |
| da44f4e5 AM |
15710 | val -= (htab->glink_eh_frame->output_section->vma |
| 15711 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15712 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15713 | if (val + 0x80000000 > 0xffffffff) |
| 15714 | { | |
| 15715 | info->callbacks->einfo | |
| 15716 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| d4aaa2a0 | 15717 | group->stub_sec->name); |
| da44f4e5 AM |
15718 | return FALSE; |
| 15719 | } | |
| d4aaa2a0 AM |
15720 | bfd_put_32 (dynobj, val, p + 8); |
| 15721 | p += stub_eh_frame_size (group, align); | |
| da44f4e5 AM |
15722 | } |
| 15723 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15724 | { | |
| da44f4e5 AM |
15725 | /* Offset to .glink. */ |
| 15726 | val = (htab->glink->output_section->vma | |
| 15727 | + htab->glink->output_offset | |
| 15728 | + 8); | |
| 15729 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15730 | + htab->glink_eh_frame->output_offset | |
| d4aaa2a0 | 15731 | + (p + 8 - htab->glink_eh_frame->contents)); |
| da44f4e5 AM |
15732 | if (val + 0x80000000 > 0xffffffff) |
| 15733 | { | |
| 15734 | info->callbacks->einfo | |
| 15735 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15736 | htab->glink->name); | |
| 15737 | return FALSE; | |
| 15738 | } | |
| d4aaa2a0 AM |
15739 | bfd_put_32 (dynobj, val, p + 8); |
| 15740 | p += (24 + align - 1) & -align; | |
| da44f4e5 AM |
15741 | } |
| 15742 | ||
| 15743 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15744 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15745 | htab->glink_eh_frame, | |
| 15746 | htab->glink_eh_frame->contents)) | |
| 15747 | return FALSE; | |
| 15748 | } | |
| 58d180e8 | 15749 | |
| e717da7e | 15750 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15751 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15752 | bfd. */ | |
| c72f2fb2 | 15753 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15754 | { |
| 15755 | asection *s; | |
| 7b53ace3 | 15756 | |
| 0c8d6e5c | 15757 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15758 | continue; |
| 15759 | ||
| e717da7e AM |
15760 | s = ppc64_elf_tdata (dynobj)->got; |
| 15761 | if (s != NULL | |
| eea6121a | 15762 | && s->size != 0 |
| e717da7e AM |
15763 | && s->output_section != bfd_abs_section_ptr |
| 15764 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15765 | s->contents, s->output_offset, | |
| eea6121a | 15766 | s->size)) |
| e717da7e AM |
15767 | return FALSE; |
| 15768 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15769 | if (s != NULL | |
| eea6121a | 15770 | && s->size != 0 |
| e717da7e AM |
15771 | && s->output_section != bfd_abs_section_ptr |
| 15772 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15773 | s->contents, s->output_offset, | |
| eea6121a | 15774 | s->size)) |
| e717da7e AM |
15775 | return FALSE; |
| 15776 | } | |
| f6c52c13 | 15777 | |
| b34976b6 | 15778 | return TRUE; |
| 5bd4f169 AM |
15779 | } |
| 15780 | ||
| 5bd4f169 | 15781 | #include "elf64-target.h" |
| 7b8e7dad AM |
15782 | |
| 15783 | /* FreeBSD support */ | |
| 15784 | ||
| 15785 | #undef TARGET_LITTLE_SYM | |
| 15786 | #undef TARGET_LITTLE_NAME | |
| 15787 | ||
| 15788 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15789 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15790 | #undef TARGET_BIG_NAME |
| 15791 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15792 | ||
| 15793 | #undef ELF_OSABI | |
| 15794 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15795 | ||
| 15796 | #undef elf64_bed | |
| 15797 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15798 | ||
| 15799 | #include "elf64-target.h" |