projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5bd4f169 | 1 | /* PowerPC64-specific support for 64-bit ELF. |
| 6f2750fe | 2 | Copyright (C) 1999-2016 Free Software Foundation, Inc. |
| 5bd4f169 AM |
3 | Written by Linus Nordberg, Swox AB <info@swox.com>, |
| 4 | based on elf32-ppc.c by Ian Lance Taylor. | |
| 32ca9640 | 5 | Largely rewritten by Alan Modra. |
| 5bd4f169 | 6 | |
| ae9a127f | 7 | This file is part of BFD, the Binary File Descriptor library. |
| 5bd4f169 | 8 | |
| ae9a127f NC |
9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by | |
| cd123cb7 | 11 | the Free Software Foundation; either version 3 of the License, or |
| ae9a127f | 12 | (at your option) any later version. |
| 5bd4f169 | 13 | |
| ae9a127f NC |
14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 17 | GNU General Public License for more details. | |
| 5bd4f169 | 18 | |
| 4ce794b7 AM |
19 | You should have received a copy of the GNU General Public License along |
| 20 | with this program; if not, write to the Free Software Foundation, Inc., | |
| 3e110533 | 21 | 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ |
| 5bd4f169 | 22 | |
| cd123cb7 | 23 | |
| 4ce794b7 AM |
24 | /* The 64-bit PowerPC ELF ABI may be found at |
| 25 | http://www.linuxbase.org/spec/ELF/ppc64/PPC-elf64abi.txt, and | |
| 26 | http://www.linuxbase.org/spec/ELF/ppc64/spec/book1.html */ | |
| 5bd4f169 | 27 | |
| 3db64b00 | 28 | #include "sysdep.h" |
| 183e98be | 29 | #include <stdarg.h> |
| 5bd4f169 | 30 | #include "bfd.h" |
| 5bd4f169 AM |
31 | #include "bfdlink.h" |
| 32 | #include "libbfd.h" | |
| 33 | #include "elf-bfd.h" | |
| 04c9666a | 34 | #include "elf/ppc64.h" |
| 5d1634d7 | 35 | #include "elf64-ppc.h" |
| 58d180e8 | 36 | #include "dwarf2.h" |
| 5bd4f169 | 37 | |
| 805fc799 | 38 | static bfd_reloc_status_type ppc64_elf_ha_reloc |
| 4ce794b7 | 39 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 AM |
40 | static bfd_reloc_status_type ppc64_elf_branch_reloc |
| 41 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); | |
| 805fc799 | 42 | static bfd_reloc_status_type ppc64_elf_brtaken_reloc |
| 4ce794b7 | 43 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 44 | static bfd_reloc_status_type ppc64_elf_sectoff_reloc |
| 4ce794b7 | 45 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 46 | static bfd_reloc_status_type ppc64_elf_sectoff_ha_reloc |
| 4ce794b7 | 47 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 48 | static bfd_reloc_status_type ppc64_elf_toc_reloc |
| 4ce794b7 | 49 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 50 | static bfd_reloc_status_type ppc64_elf_toc_ha_reloc |
| 4ce794b7 | 51 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 52 | static bfd_reloc_status_type ppc64_elf_toc64_reloc |
| 4ce794b7 | 53 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 805fc799 | 54 | static bfd_reloc_status_type ppc64_elf_unhandled_reloc |
| 4ce794b7 | 55 | (bfd *, arelent *, asymbol *, void *, asection *, bfd *, char **); |
| 2441e016 | 56 | static bfd_vma opd_entry_value |
| aef36ac1 | 57 | (asection *, bfd_vma, asection **, bfd_vma *, bfd_boolean); |
| 5bd4f169 | 58 | |
| 6d00b590 | 59 | #define TARGET_LITTLE_SYM powerpc_elf64_le_vec |
| ad8e1ba5 | 60 | #define TARGET_LITTLE_NAME "elf64-powerpcle" |
| 6d00b590 | 61 | #define TARGET_BIG_SYM powerpc_elf64_vec |
| ad8e1ba5 AM |
62 | #define TARGET_BIG_NAME "elf64-powerpc" |
| 63 | #define ELF_ARCH bfd_arch_powerpc | |
| ae95ffa6 | 64 | #define ELF_TARGET_ID PPC64_ELF_DATA |
| ad8e1ba5 AM |
65 | #define ELF_MACHINE_CODE EM_PPC64 |
| 66 | #define ELF_MAXPAGESIZE 0x10000 | |
| 04c6a44c | 67 | #define ELF_COMMONPAGESIZE 0x10000 |
| ad8e1ba5 AM |
68 | #define elf_info_to_howto ppc64_elf_info_to_howto |
| 69 | ||
| 70 | #define elf_backend_want_got_sym 0 | |
| 71 | #define elf_backend_want_plt_sym 0 | |
| 72 | #define elf_backend_plt_alignment 3 | |
| 73 | #define elf_backend_plt_not_loaded 1 | |
| ad8e1ba5 | 74 | #define elf_backend_got_header_size 8 |
| ad8e1ba5 AM |
75 | #define elf_backend_can_gc_sections 1 |
| 76 | #define elf_backend_can_refcount 1 | |
| 77 | #define elf_backend_rela_normal 1 | |
| 6bfdb61b | 78 | #define elf_backend_default_execstack 0 |
| ad8e1ba5 | 79 | |
| e717da7e | 80 | #define bfd_elf64_mkobject ppc64_elf_mkobject |
| ad8e1ba5 | 81 | #define bfd_elf64_bfd_reloc_type_lookup ppc64_elf_reloc_type_lookup |
| aa374f67 | 82 | #define bfd_elf64_bfd_reloc_name_lookup ppc64_elf_reloc_name_lookup |
| ee67d69a AM |
83 | #define bfd_elf64_bfd_merge_private_bfd_data ppc64_elf_merge_private_bfd_data |
| 84 | #define bfd_elf64_bfd_print_private_bfd_data ppc64_elf_print_private_bfd_data | |
| ad8e1ba5 AM |
85 | #define bfd_elf64_new_section_hook ppc64_elf_new_section_hook |
| 86 | #define bfd_elf64_bfd_link_hash_table_create ppc64_elf_link_hash_table_create | |
| 90e3cdf2 | 87 | #define bfd_elf64_get_synthetic_symtab ppc64_elf_get_synthetic_symtab |
| aa374f67 | 88 | #define bfd_elf64_bfd_link_just_syms ppc64_elf_link_just_syms |
| ad8e1ba5 AM |
89 | |
| 90 | #define elf_backend_object_p ppc64_elf_object_p | |
| d37c89e5 AM |
91 | #define elf_backend_grok_prstatus ppc64_elf_grok_prstatus |
| 92 | #define elf_backend_grok_psinfo ppc64_elf_grok_psinfo | |
| 183e98be | 93 | #define elf_backend_write_core_note ppc64_elf_write_core_note |
| ad8e1ba5 AM |
94 | #define elf_backend_create_dynamic_sections ppc64_elf_create_dynamic_sections |
| 95 | #define elf_backend_copy_indirect_symbol ppc64_elf_copy_indirect_symbol | |
| 555cd476 | 96 | #define elf_backend_add_symbol_hook ppc64_elf_add_symbol_hook |
| f6c7c3e8 | 97 | #define elf_backend_check_directives ppc64_elf_before_check_relocs |
| e5034e59 | 98 | #define elf_backend_notice_as_needed ppc64_elf_notice_as_needed |
| 8387904d | 99 | #define elf_backend_archive_symbol_lookup ppc64_elf_archive_symbol_lookup |
| ad8e1ba5 | 100 | #define elf_backend_check_relocs ppc64_elf_check_relocs |
| 74f0fb50 | 101 | #define elf_backend_gc_keep ppc64_elf_gc_keep |
| 64d03ab5 | 102 | #define elf_backend_gc_mark_dynamic_ref ppc64_elf_gc_mark_dynamic_ref |
| ad8e1ba5 AM |
103 | #define elf_backend_gc_mark_hook ppc64_elf_gc_mark_hook |
| 104 | #define elf_backend_gc_sweep_hook ppc64_elf_gc_sweep_hook | |
| 105 | #define elf_backend_adjust_dynamic_symbol ppc64_elf_adjust_dynamic_symbol | |
| 106 | #define elf_backend_hide_symbol ppc64_elf_hide_symbol | |
| 9f296da3 | 107 | #define elf_backend_maybe_function_sym ppc64_elf_maybe_function_sym |
| ad8e1ba5 AM |
108 | #define elf_backend_always_size_sections ppc64_elf_func_desc_adjust |
| 109 | #define elf_backend_size_dynamic_sections ppc64_elf_size_dynamic_sections | |
| a345bc8d | 110 | #define elf_backend_hash_symbol ppc64_elf_hash_symbol |
| 74541ad4 | 111 | #define elf_backend_init_index_section _bfd_elf_init_2_index_sections |
| 60124e18 | 112 | #define elf_backend_action_discarded ppc64_elf_action_discarded |
| ad8e1ba5 AM |
113 | #define elf_backend_relocate_section ppc64_elf_relocate_section |
| 114 | #define elf_backend_finish_dynamic_symbol ppc64_elf_finish_dynamic_symbol | |
| 115 | #define elf_backend_reloc_type_class ppc64_elf_reloc_type_class | |
| 116 | #define elf_backend_finish_dynamic_sections ppc64_elf_finish_dynamic_sections | |
| 754021d0 | 117 | #define elf_backend_link_output_symbol_hook ppc64_elf_output_symbol_hook |
| 29ef7005 | 118 | #define elf_backend_special_sections ppc64_elf_special_sections |
| 6911b7dc | 119 | #define elf_backend_merge_symbol_attribute ppc64_elf_merge_symbol_attribute |
| ad8e1ba5 | 120 | |
| 5bd4f169 AM |
121 | /* The name of the dynamic interpreter. This is put in the .interp |
| 122 | section. */ | |
| 123 | #define ELF_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1" | |
| 124 | ||
| 125 | /* The size in bytes of an entry in the procedure linkage table. */ | |
| b9e5796b | 126 | #define PLT_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 8) |
| 5bd4f169 AM |
127 | |
| 128 | /* The initial size of the plt reserved for the dynamic linker. */ | |
| b9e5796b | 129 | #define PLT_INITIAL_ENTRY_SIZE(htab) (htab->opd_abi ? 24 : 16) |
| 5bd4f169 | 130 | |
| a078d95a AM |
131 | /* Offsets to some stack save slots. */ |
| 132 | #define STK_LR 16 | |
| 133 | #define STK_TOC(htab) (htab->opd_abi ? 40 : 24) | |
| eb8d7fda | 134 | /* This one is dodgy. ELFv2 does not have a linker word, so use the |
| a078d95a AM |
135 | CR save slot. Used only by optimised __tls_get_addr call stub, |
| 136 | relying on __tls_get_addr_opt not saving CR.. */ | |
| 137 | #define STK_LINKER(htab) (htab->opd_abi ? 32 : 8) | |
| 138 | ||
| 5bd4f169 | 139 | /* TOC base pointers offset from start of TOC. */ |
| 411e1bfb | 140 | #define TOC_BASE_OFF 0x8000 |
| a27e685f AM |
141 | /* TOC base alignment. */ |
| 142 | #define TOC_BASE_ALIGN 256 | |
| 411e1bfb AM |
143 | |
| 144 | /* Offset of tp and dtp pointers from start of TLS block. */ | |
| 145 | #define TP_OFFSET 0x7000 | |
| 146 | #define DTP_OFFSET 0x8000 | |
| 5bd4f169 | 147 | |
| ad8e1ba5 AM |
148 | /* .plt call stub instructions. The normal stub is like this, but |
| 149 | sometimes the .plt entry crosses a 64k boundary and we need to | |
| 71a39c98 | 150 | insert an addi to adjust r11. */ |
| a078d95a | 151 | #define STD_R2_0R1 0xf8410000 /* std %r2,0+40(%r1) */ |
| 71a39c98 AM |
152 | #define ADDIS_R11_R2 0x3d620000 /* addis %r11,%r2,xxx@ha */ |
| 153 | #define LD_R12_0R11 0xe98b0000 /* ld %r12,xxx+0@l(%r11) */ | |
| 154 | #define MTCTR_R12 0x7d8903a6 /* mtctr %r12 */ | |
| 155 | #define LD_R2_0R11 0xe84b0000 /* ld %r2,xxx+8@l(%r11) */ | |
| 156 | #define LD_R11_0R11 0xe96b0000 /* ld %r11,xxx+16@l(%r11) */ | |
| 5d1634d7 AM |
157 | #define BCTR 0x4e800420 /* bctr */ |
| 158 | ||
| 71a39c98 | 159 | #define ADDI_R11_R11 0x396b0000 /* addi %r11,%r11,off@l */ |
| ad8e1ba5 AM |
160 | #define ADDIS_R2_R2 0x3c420000 /* addis %r2,%r2,off@ha */ |
| 161 | #define ADDI_R2_R2 0x38420000 /* addi %r2,%r2,off@l */ | |
| 162 | ||
| 71a39c98 AM |
163 | #define XOR_R2_R12_R12 0x7d826278 /* xor %r2,%r12,%r12 */ |
| 164 | #define ADD_R11_R11_R2 0x7d6b1214 /* add %r11,%r11,%r2 */ | |
| 165 | #define XOR_R11_R12_R12 0x7d8b6278 /* xor %r11,%r12,%r12 */ | |
| 794e51c0 AM |
166 | #define ADD_R2_R2_R11 0x7c425a14 /* add %r2,%r2,%r11 */ |
| 167 | #define CMPLDI_R2_0 0x28220000 /* cmpldi %r2,0 */ | |
| 168 | #define BNECTR 0x4ca20420 /* bnectr+ */ | |
| 169 | #define BNECTR_P4 0x4ce20420 /* bnectr+ */ | |
| 170 | ||
| 71a39c98 | 171 | #define LD_R12_0R2 0xe9820000 /* ld %r12,xxx+0(%r2) */ |
| ac2df442 AM |
172 | #define LD_R11_0R2 0xe9620000 /* ld %r11,xxx+0(%r2) */ |
| 173 | #define LD_R2_0R2 0xe8420000 /* ld %r2,xxx+0(%r2) */ | |
| 174 | ||
| a078d95a | 175 | #define LD_R2_0R1 0xe8410000 /* ld %r2,0(%r1) */ |
| 006589cf AM |
176 | #define LD_R2_0R12 0xe84c0000 /* ld %r2,0(%r12) */ |
| 177 | #define ADD_R2_R2_R12 0x7c426214 /* add %r2,%r2,%r12 */ | |
| ad8e1ba5 | 178 | |
| 006589cf AM |
179 | #define LIS_R2 0x3c400000 /* lis %r2,xxx@ha */ |
| 180 | #define ADDIS_R2_R12 0x3c4c0000 /* addis %r2,%r12,xxx@ha */ | |
| 181 | #define ADDIS_R12_R2 0x3d820000 /* addis %r12,%r2,xxx@ha */ | |
| a345bc8d AM |
182 | #define ADDIS_R12_R12 0x3d8c0000 /* addis %r12,%r12,xxx@ha */ |
| 183 | #define LD_R12_0R12 0xe98c0000 /* ld %r12,xxx@l(%r12) */ | |
| 184 | ||
| ee4bf8d2 | 185 | /* glink call stub instructions. We enter with the index in R0. */ |
| ad8e1ba5 | 186 | #define GLINK_CALL_STUB_SIZE (16*4) |
| ee4bf8d2 AM |
187 | /* 0: */ |
| 188 | /* .quad plt0-1f */ | |
| 189 | /* __glink: */ | |
| 190 | #define MFLR_R12 0x7d8802a6 /* mflr %12 */ | |
| 191 | #define BCL_20_31 0x429f0005 /* bcl 20,31,1f */ | |
| 192 | /* 1: */ | |
| 193 | #define MFLR_R11 0x7d6802a6 /* mflr %11 */ | |
| 71a39c98 | 194 | /* ld %2,(0b-1b)(%11) */ |
| ee4bf8d2 | 195 | #define MTLR_R12 0x7d8803a6 /* mtlr %12 */ |
| 71a39c98 AM |
196 | #define ADD_R11_R2_R11 0x7d625a14 /* add %11,%2,%11 */ |
| 197 | /* ld %12,0(%11) */ | |
| 198 | /* ld %2,8(%11) */ | |
| 199 | /* mtctr %12 */ | |
| 200 | /* ld %11,16(%11) */ | |
| ee4bf8d2 | 201 | /* bctr */ |
| b9e5796b AM |
202 | #define MFLR_R0 0x7c0802a6 /* mflr %r0 */ |
| 203 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 204 | #define SUB_R12_R12_R11 0x7d8b6050 /* subf %r12,%r11,%r12 */ | |
| 205 | #define ADDI_R0_R12 0x380c0000 /* addi %r0,%r12,0 */ | |
| 206 | #define SRDI_R0_R0_2 0x7800f082 /* rldicl %r0,%r0,62,2 */ | |
| 5d1634d7 AM |
207 | |
| 208 | /* Pad with this. */ | |
| 209 | #define NOP 0x60000000 | |
| 210 | ||
| 721956f4 AM |
211 | /* Some other nops. */ |
| 212 | #define CROR_151515 0x4def7b82 | |
| 213 | #define CROR_313131 0x4ffffb82 | |
| 214 | ||
| cedb70c5 | 215 | /* .glink entries for the first 32k functions are two instructions. */ |
| 5d1634d7 AM |
216 | #define LI_R0_0 0x38000000 /* li %r0,0 */ |
| 217 | #define B_DOT 0x48000000 /* b . */ | |
| 218 | ||
| 219 | /* After that, we need two instructions to load the index, followed by | |
| 220 | a branch. */ | |
| 221 | #define LIS_R0_0 0x3c000000 /* lis %r0,0 */ | |
| 10ed1bba | 222 | #define ORI_R0_R0_0 0x60000000 /* ori %r0,%r0,0 */ |
| 41bd81ab | 223 | |
| deb0e272 AM |
224 | /* Instructions used by the save and restore reg functions. */ |
| 225 | #define STD_R0_0R1 0xf8010000 /* std %r0,0(%r1) */ | |
| 226 | #define STD_R0_0R12 0xf80c0000 /* std %r0,0(%r12) */ | |
| 227 | #define LD_R0_0R1 0xe8010000 /* ld %r0,0(%r1) */ | |
| 228 | #define LD_R0_0R12 0xe80c0000 /* ld %r0,0(%r12) */ | |
| 82bd7b59 AM |
229 | #define STFD_FR0_0R1 0xd8010000 /* stfd %fr0,0(%r1) */ |
| 230 | #define LFD_FR0_0R1 0xc8010000 /* lfd %fr0,0(%r1) */ | |
| deb0e272 AM |
231 | #define LI_R12_0 0x39800000 /* li %r12,0 */ |
| 232 | #define STVX_VR0_R12_R0 0x7c0c01ce /* stvx %v0,%r12,%r0 */ | |
| 233 | #define LVX_VR0_R12_R0 0x7c0c00ce /* lvx %v0,%r12,%r0 */ | |
| 234 | #define MTLR_R0 0x7c0803a6 /* mtlr %r0 */ | |
| 82bd7b59 AM |
235 | #define BLR 0x4e800020 /* blr */ |
| 236 | ||
| 41bd81ab AM |
237 | /* Since .opd is an array of descriptors and each entry will end up |
| 238 | with identical R_PPC64_RELATIVE relocs, there is really no need to | |
| 239 | propagate .opd relocs; The dynamic linker should be taught to | |
| 1e2f5b6e | 240 | relocate .opd without reloc entries. */ |
| 41bd81ab AM |
241 | #ifndef NO_OPD_RELOCS |
| 242 | #define NO_OPD_RELOCS 0 | |
| 243 | #endif | |
| 810d4e75 | 244 | |
| a4b6fadd AM |
245 | #ifndef ARRAY_SIZE |
| 246 | #define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0])) | |
| 247 | #endif | |
| 248 | ||
| 810d4e75 AM |
249 | static inline int |
| 250 | abiversion (bfd *abfd) | |
| 251 | { | |
| 252 | return elf_elfheader (abfd)->e_flags & EF_PPC64_ABI; | |
| 253 | } | |
| 254 | ||
| 255 | static inline void | |
| 256 | set_abiversion (bfd *abfd, int ver) | |
| 257 | { | |
| 258 | elf_elfheader (abfd)->e_flags &= ~EF_PPC64_ABI; | |
| 259 | elf_elfheader (abfd)->e_flags |= ver & EF_PPC64_ABI; | |
| 260 | } | |
| 5bd4f169 | 261 | \f |
| f5e87a1d | 262 | #define ONES(n) (((bfd_vma) 1 << ((n) - 1) << 1) - 1) |
| b34976b6 | 263 | |
| 5bd4f169 | 264 | /* Relocation HOWTO's. */ |
| 04c9666a | 265 | static reloc_howto_type *ppc64_elf_howto_table[(int) R_PPC64_max]; |
| 5bd4f169 AM |
266 | |
| 267 | static reloc_howto_type ppc64_elf_howto_raw[] = { | |
| 268 | /* This reloc does nothing. */ | |
| 269 | HOWTO (R_PPC64_NONE, /* type */ | |
| 270 | 0, /* rightshift */ | |
| 6346d5ca AM |
271 | 3, /* size (0 = byte, 1 = short, 2 = long) */ |
| 272 | 0, /* bitsize */ | |
| b34976b6 | 273 | FALSE, /* pc_relative */ |
| 5bd4f169 | 274 | 0, /* bitpos */ |
| f5e87a1d | 275 | complain_overflow_dont, /* complain_on_overflow */ |
| 5bd4f169 AM |
276 | bfd_elf_generic_reloc, /* special_function */ |
| 277 | "R_PPC64_NONE", /* name */ | |
| b34976b6 | 278 | FALSE, /* partial_inplace */ |
| d006db6c | 279 | 0, /* src_mask */ |
| 5bd4f169 | 280 | 0, /* dst_mask */ |
| b34976b6 | 281 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
282 | |
| 283 | /* A standard 32 bit relocation. */ | |
| 284 | HOWTO (R_PPC64_ADDR32, /* type */ | |
| 285 | 0, /* rightshift */ | |
| 286 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 287 | 32, /* bitsize */ | |
| b34976b6 | 288 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
289 | 0, /* bitpos */ |
| 290 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 291 | bfd_elf_generic_reloc, /* special_function */ | |
| 292 | "R_PPC64_ADDR32", /* name */ | |
| b34976b6 | 293 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
294 | 0, /* src_mask */ |
| 295 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 296 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
297 | |
| 298 | /* An absolute 26 bit branch; the lower two bits must be zero. | |
| 299 | FIXME: we don't check that, we just clear them. */ | |
| 300 | HOWTO (R_PPC64_ADDR24, /* type */ | |
| 301 | 0, /* rightshift */ | |
| 302 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 303 | 26, /* bitsize */ | |
| b34976b6 | 304 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
305 | 0, /* bitpos */ |
| 306 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 307 | bfd_elf_generic_reloc, /* special_function */ | |
| 308 | "R_PPC64_ADDR24", /* name */ | |
| b34976b6 | 309 | FALSE, /* partial_inplace */ |
| d006db6c | 310 | 0, /* src_mask */ |
| f5e87a1d | 311 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 312 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
313 | |
| 314 | /* A standard 16 bit relocation. */ | |
| 315 | HOWTO (R_PPC64_ADDR16, /* type */ | |
| 316 | 0, /* rightshift */ | |
| 317 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 318 | 16, /* bitsize */ | |
| b34976b6 | 319 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
320 | 0, /* bitpos */ |
| 321 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 322 | bfd_elf_generic_reloc, /* special_function */ | |
| 323 | "R_PPC64_ADDR16", /* name */ | |
| b34976b6 | 324 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
325 | 0, /* src_mask */ |
| 326 | 0xffff, /* dst_mask */ | |
| b34976b6 | 327 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
328 | |
| 329 | /* A 16 bit relocation without overflow. */ | |
| 330 | HOWTO (R_PPC64_ADDR16_LO, /* type */ | |
| 331 | 0, /* rightshift */ | |
| 332 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 333 | 16, /* bitsize */ | |
| b34976b6 | 334 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
335 | 0, /* bitpos */ |
| 336 | complain_overflow_dont,/* complain_on_overflow */ | |
| 337 | bfd_elf_generic_reloc, /* special_function */ | |
| 338 | "R_PPC64_ADDR16_LO", /* name */ | |
| b34976b6 | 339 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
340 | 0, /* src_mask */ |
| 341 | 0xffff, /* dst_mask */ | |
| b34976b6 | 342 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
343 | |
| 344 | /* Bits 16-31 of an address. */ | |
| 345 | HOWTO (R_PPC64_ADDR16_HI, /* type */ | |
| 346 | 16, /* rightshift */ | |
| 347 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 348 | 16, /* bitsize */ | |
| b34976b6 | 349 | FALSE, /* pc_relative */ |
| 5bd4f169 | 350 | 0, /* bitpos */ |
| f9c6b907 | 351 | complain_overflow_signed, /* complain_on_overflow */ |
| 5bd4f169 AM |
352 | bfd_elf_generic_reloc, /* special_function */ |
| 353 | "R_PPC64_ADDR16_HI", /* name */ | |
| b34976b6 | 354 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
355 | 0, /* src_mask */ |
| 356 | 0xffff, /* dst_mask */ | |
| b34976b6 | 357 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
358 | |
| 359 | /* Bits 16-31 of an address, plus 1 if the contents of the low 16 | |
| 360 | bits, treated as a signed number, is negative. */ | |
| 361 | HOWTO (R_PPC64_ADDR16_HA, /* type */ | |
| 362 | 16, /* rightshift */ | |
| 363 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 364 | 16, /* bitsize */ | |
| b34976b6 | 365 | FALSE, /* pc_relative */ |
| 5bd4f169 | 366 | 0, /* bitpos */ |
| f9c6b907 | 367 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 368 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 369 | "R_PPC64_ADDR16_HA", /* name */ |
| b34976b6 | 370 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
371 | 0, /* src_mask */ |
| 372 | 0xffff, /* dst_mask */ | |
| b34976b6 | 373 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
374 | |
| 375 | /* An absolute 16 bit branch; the lower two bits must be zero. | |
| 376 | FIXME: we don't check that, we just clear them. */ | |
| 377 | HOWTO (R_PPC64_ADDR14, /* type */ | |
| 378 | 0, /* rightshift */ | |
| 379 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 380 | 16, /* bitsize */ | |
| b34976b6 | 381 | FALSE, /* pc_relative */ |
| 5bd4f169 | 382 | 0, /* bitpos */ |
| b80eed39 | 383 | complain_overflow_signed, /* complain_on_overflow */ |
| 2441e016 | 384 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 385 | "R_PPC64_ADDR14", /* name */ |
| b34976b6 | 386 | FALSE, /* partial_inplace */ |
| d006db6c | 387 | 0, /* src_mask */ |
| f5e87a1d | 388 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 389 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
390 | |
| 391 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 392 | indicate that the branch is expected to be taken. The lower two | |
| 393 | bits must be zero. */ | |
| 394 | HOWTO (R_PPC64_ADDR14_BRTAKEN, /* type */ | |
| 395 | 0, /* rightshift */ | |
| 396 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 397 | 16, /* bitsize */ | |
| b34976b6 | 398 | FALSE, /* pc_relative */ |
| 5bd4f169 | 399 | 0, /* bitpos */ |
| b80eed39 | 400 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 401 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 402 | "R_PPC64_ADDR14_BRTAKEN",/* name */ |
| b34976b6 | 403 | FALSE, /* partial_inplace */ |
| d006db6c | 404 | 0, /* src_mask */ |
| f5e87a1d | 405 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 406 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
407 | |
| 408 | /* An absolute 16 bit branch, for which bit 10 should be set to | |
| 409 | indicate that the branch is not expected to be taken. The lower | |
| 410 | two bits must be zero. */ | |
| 411 | HOWTO (R_PPC64_ADDR14_BRNTAKEN, /* type */ | |
| 412 | 0, /* rightshift */ | |
| 413 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 414 | 16, /* bitsize */ | |
| b34976b6 | 415 | FALSE, /* pc_relative */ |
| 5bd4f169 | 416 | 0, /* bitpos */ |
| b80eed39 | 417 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 418 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 419 | "R_PPC64_ADDR14_BRNTAKEN",/* name */ |
| b34976b6 | 420 | FALSE, /* partial_inplace */ |
| d006db6c | 421 | 0, /* src_mask */ |
| f5e87a1d | 422 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 423 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
424 | |
| 425 | /* A relative 26 bit branch; the lower two bits must be zero. */ | |
| 426 | HOWTO (R_PPC64_REL24, /* type */ | |
| 427 | 0, /* rightshift */ | |
| 428 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 429 | 26, /* bitsize */ | |
| b34976b6 | 430 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
431 | 0, /* bitpos */ |
| 432 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 433 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 434 | "R_PPC64_REL24", /* name */ |
| b34976b6 | 435 | FALSE, /* partial_inplace */ |
| d006db6c | 436 | 0, /* src_mask */ |
| f5e87a1d | 437 | 0x03fffffc, /* dst_mask */ |
| b34976b6 | 438 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
439 | |
| 440 | /* A relative 16 bit branch; the lower two bits must be zero. */ | |
| 441 | HOWTO (R_PPC64_REL14, /* type */ | |
| 442 | 0, /* rightshift */ | |
| 443 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 444 | 16, /* bitsize */ | |
| b34976b6 | 445 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
446 | 0, /* bitpos */ |
| 447 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2441e016 | 448 | ppc64_elf_branch_reloc, /* special_function */ |
| 5bd4f169 | 449 | "R_PPC64_REL14", /* name */ |
| b34976b6 | 450 | FALSE, /* partial_inplace */ |
| d006db6c | 451 | 0, /* src_mask */ |
| f5e87a1d | 452 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 453 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
454 | |
| 455 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 456 | the branch is expected to be taken. The lower two bits must be | |
| 457 | zero. */ | |
| 458 | HOWTO (R_PPC64_REL14_BRTAKEN, /* type */ | |
| 459 | 0, /* rightshift */ | |
| 460 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 461 | 16, /* bitsize */ | |
| b34976b6 | 462 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
463 | 0, /* bitpos */ |
| 464 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 465 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 466 | "R_PPC64_REL14_BRTAKEN", /* name */ |
| b34976b6 | 467 | FALSE, /* partial_inplace */ |
| d006db6c | 468 | 0, /* src_mask */ |
| f5e87a1d | 469 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 470 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
471 | |
| 472 | /* A relative 16 bit branch. Bit 10 should be set to indicate that | |
| 473 | the branch is not expected to be taken. The lower two bits must | |
| 474 | be zero. */ | |
| 475 | HOWTO (R_PPC64_REL14_BRNTAKEN, /* type */ | |
| 476 | 0, /* rightshift */ | |
| 477 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 478 | 16, /* bitsize */ | |
| b34976b6 | 479 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
480 | 0, /* bitpos */ |
| 481 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 482 | ppc64_elf_brtaken_reloc, /* special_function */ |
| 5bd4f169 | 483 | "R_PPC64_REL14_BRNTAKEN",/* name */ |
| b34976b6 | 484 | FALSE, /* partial_inplace */ |
| d006db6c | 485 | 0, /* src_mask */ |
| f5e87a1d | 486 | 0x0000fffc, /* dst_mask */ |
| b34976b6 | 487 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
488 | |
| 489 | /* Like R_PPC64_ADDR16, but referring to the GOT table entry for the | |
| 490 | symbol. */ | |
| 491 | HOWTO (R_PPC64_GOT16, /* type */ | |
| 492 | 0, /* rightshift */ | |
| 493 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 494 | 16, /* bitsize */ | |
| b34976b6 | 495 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
496 | 0, /* bitpos */ |
| 497 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 498 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 499 | "R_PPC64_GOT16", /* name */ |
| b34976b6 | 500 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
501 | 0, /* src_mask */ |
| 502 | 0xffff, /* dst_mask */ | |
| b34976b6 | 503 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
504 | |
| 505 | /* Like R_PPC64_ADDR16_LO, but referring to the GOT table entry for | |
| 506 | the symbol. */ | |
| 507 | HOWTO (R_PPC64_GOT16_LO, /* type */ | |
| 508 | 0, /* rightshift */ | |
| 509 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 510 | 16, /* bitsize */ | |
| b34976b6 | 511 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
512 | 0, /* bitpos */ |
| 513 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 514 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 515 | "R_PPC64_GOT16_LO", /* name */ |
| b34976b6 | 516 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
517 | 0, /* src_mask */ |
| 518 | 0xffff, /* dst_mask */ | |
| b34976b6 | 519 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
520 | |
| 521 | /* Like R_PPC64_ADDR16_HI, but referring to the GOT table entry for | |
| 522 | the symbol. */ | |
| 523 | HOWTO (R_PPC64_GOT16_HI, /* type */ | |
| 524 | 16, /* rightshift */ | |
| 525 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 526 | 16, /* bitsize */ | |
| b34976b6 | 527 | FALSE, /* pc_relative */ |
| 5bd4f169 | 528 | 0, /* bitpos */ |
| f9c6b907 | 529 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 530 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 531 | "R_PPC64_GOT16_HI", /* name */ |
| b34976b6 | 532 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
533 | 0, /* src_mask */ |
| 534 | 0xffff, /* dst_mask */ | |
| b34976b6 | 535 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
536 | |
| 537 | /* Like R_PPC64_ADDR16_HA, but referring to the GOT table entry for | |
| 538 | the symbol. */ | |
| 539 | HOWTO (R_PPC64_GOT16_HA, /* type */ | |
| 540 | 16, /* rightshift */ | |
| 541 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 542 | 16, /* bitsize */ | |
| b34976b6 | 543 | FALSE, /* pc_relative */ |
| 5bd4f169 | 544 | 0, /* bitpos */ |
| f9c6b907 | 545 | complain_overflow_signed,/* complain_on_overflow */ |
| 805fc799 | 546 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 547 | "R_PPC64_GOT16_HA", /* name */ |
| b34976b6 | 548 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
549 | 0, /* src_mask */ |
| 550 | 0xffff, /* dst_mask */ | |
| b34976b6 | 551 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
552 | |
| 553 | /* This is used only by the dynamic linker. The symbol should exist | |
| 554 | both in the object being run and in some shared library. The | |
| 555 | dynamic linker copies the data addressed by the symbol from the | |
| 556 | shared library into the object, because the object being | |
| 557 | run has to have the data at some particular address. */ | |
| 558 | HOWTO (R_PPC64_COPY, /* type */ | |
| 559 | 0, /* rightshift */ | |
| f5e87a1d AM |
560 | 0, /* this one is variable size */ |
| 561 | 0, /* bitsize */ | |
| b34976b6 | 562 | FALSE, /* pc_relative */ |
| 5bd4f169 | 563 | 0, /* bitpos */ |
| f5e87a1d AM |
564 | complain_overflow_dont, /* complain_on_overflow */ |
| 565 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 5bd4f169 | 566 | "R_PPC64_COPY", /* name */ |
| b34976b6 | 567 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
568 | 0, /* src_mask */ |
| 569 | 0, /* dst_mask */ | |
| b34976b6 | 570 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
571 | |
| 572 | /* Like R_PPC64_ADDR64, but used when setting global offset table | |
| 573 | entries. */ | |
| 574 | HOWTO (R_PPC64_GLOB_DAT, /* type */ | |
| 575 | 0, /* rightshift */ | |
| 576 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 577 | 64, /* bitsize */ | |
| b34976b6 | 578 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
579 | 0, /* bitpos */ |
| 580 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 581 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 582 | "R_PPC64_GLOB_DAT", /* name */ |
| b34976b6 | 583 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 584 | 0, /* src_mask */ |
| f5e87a1d | 585 | ONES (64), /* dst_mask */ |
| b34976b6 | 586 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
587 | |
| 588 | /* Created by the link editor. Marks a procedure linkage table | |
| 589 | entry for a symbol. */ | |
| 590 | HOWTO (R_PPC64_JMP_SLOT, /* type */ | |
| 591 | 0, /* rightshift */ | |
| 592 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 593 | 0, /* bitsize */ | |
| b34976b6 | 594 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
595 | 0, /* bitpos */ |
| 596 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 597 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 598 | "R_PPC64_JMP_SLOT", /* name */ |
| b34976b6 | 599 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
600 | 0, /* src_mask */ |
| 601 | 0, /* dst_mask */ | |
| b34976b6 | 602 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
603 | |
| 604 | /* Used only by the dynamic linker. When the object is run, this | |
| 605 | doubleword64 is set to the load address of the object, plus the | |
| 606 | addend. */ | |
| 607 | HOWTO (R_PPC64_RELATIVE, /* type */ | |
| 608 | 0, /* rightshift */ | |
| 609 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 610 | 64, /* bitsize */ | |
| b34976b6 | 611 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
612 | 0, /* bitpos */ |
| 613 | complain_overflow_dont, /* complain_on_overflow */ | |
| 614 | bfd_elf_generic_reloc, /* special_function */ | |
| 615 | "R_PPC64_RELATIVE", /* name */ | |
| b34976b6 | 616 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 617 | 0, /* src_mask */ |
| f5e87a1d | 618 | ONES (64), /* dst_mask */ |
| b34976b6 | 619 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
620 | |
| 621 | /* Like R_PPC64_ADDR32, but may be unaligned. */ | |
| 622 | HOWTO (R_PPC64_UADDR32, /* type */ | |
| 623 | 0, /* rightshift */ | |
| 624 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 625 | 32, /* bitsize */ | |
| b34976b6 | 626 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
627 | 0, /* bitpos */ |
| 628 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 629 | bfd_elf_generic_reloc, /* special_function */ | |
| 630 | "R_PPC64_UADDR32", /* name */ | |
| b34976b6 | 631 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
632 | 0, /* src_mask */ |
| 633 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 634 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
635 | |
| 636 | /* Like R_PPC64_ADDR16, but may be unaligned. */ | |
| 637 | HOWTO (R_PPC64_UADDR16, /* type */ | |
| 638 | 0, /* rightshift */ | |
| 639 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 640 | 16, /* bitsize */ | |
| b34976b6 | 641 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
642 | 0, /* bitpos */ |
| 643 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 644 | bfd_elf_generic_reloc, /* special_function */ | |
| 645 | "R_PPC64_UADDR16", /* name */ | |
| b34976b6 | 646 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
647 | 0, /* src_mask */ |
| 648 | 0xffff, /* dst_mask */ | |
| b34976b6 | 649 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
650 | |
| 651 | /* 32-bit PC relative. */ | |
| 652 | HOWTO (R_PPC64_REL32, /* type */ | |
| 653 | 0, /* rightshift */ | |
| 654 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 655 | 32, /* bitsize */ | |
| b34976b6 | 656 | TRUE, /* pc_relative */ |
| 5bd4f169 | 657 | 0, /* bitpos */ |
| 5bd4f169 AM |
658 | complain_overflow_signed, /* complain_on_overflow */ |
| 659 | bfd_elf_generic_reloc, /* special_function */ | |
| 660 | "R_PPC64_REL32", /* name */ | |
| b34976b6 | 661 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
662 | 0, /* src_mask */ |
| 663 | 0xffffffff, /* dst_mask */ | |
| b34976b6 | 664 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 665 | |
| 10ed1bba | 666 | /* 32-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
667 | HOWTO (R_PPC64_PLT32, /* type */ |
| 668 | 0, /* rightshift */ | |
| 669 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 670 | 32, /* bitsize */ | |
| b34976b6 | 671 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
672 | 0, /* bitpos */ |
| 673 | complain_overflow_bitfield, /* complain_on_overflow */ | |
| 805fc799 | 674 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 675 | "R_PPC64_PLT32", /* name */ |
| b34976b6 | 676 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 677 | 0, /* src_mask */ |
| f5e87a1d | 678 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 679 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
680 | |
| 681 | /* 32-bit PC relative relocation to the symbol's procedure linkage table. | |
| 682 | FIXME: R_PPC64_PLTREL32 not supported. */ | |
| 683 | HOWTO (R_PPC64_PLTREL32, /* type */ | |
| 684 | 0, /* rightshift */ | |
| 685 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 686 | 32, /* bitsize */ | |
| b34976b6 | 687 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
688 | 0, /* bitpos */ |
| 689 | complain_overflow_signed, /* complain_on_overflow */ | |
| 3ce51288 | 690 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 691 | "R_PPC64_PLTREL32", /* name */ |
| b34976b6 | 692 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 693 | 0, /* src_mask */ |
| f5e87a1d | 694 | 0xffffffff, /* dst_mask */ |
| b34976b6 | 695 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
696 | |
| 697 | /* Like R_PPC64_ADDR16_LO, but referring to the PLT table entry for | |
| 698 | the symbol. */ | |
| 699 | HOWTO (R_PPC64_PLT16_LO, /* type */ | |
| 700 | 0, /* rightshift */ | |
| 701 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 702 | 16, /* bitsize */ | |
| b34976b6 | 703 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
704 | 0, /* bitpos */ |
| 705 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 706 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 707 | "R_PPC64_PLT16_LO", /* name */ |
| b34976b6 | 708 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
709 | 0, /* src_mask */ |
| 710 | 0xffff, /* dst_mask */ | |
| b34976b6 | 711 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
712 | |
| 713 | /* Like R_PPC64_ADDR16_HI, but referring to the PLT table entry for | |
| 714 | the symbol. */ | |
| 715 | HOWTO (R_PPC64_PLT16_HI, /* type */ | |
| 716 | 16, /* rightshift */ | |
| 717 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 718 | 16, /* bitsize */ | |
| b34976b6 | 719 | FALSE, /* pc_relative */ |
| 5bd4f169 | 720 | 0, /* bitpos */ |
| f9c6b907 | 721 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 722 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 723 | "R_PPC64_PLT16_HI", /* name */ |
| b34976b6 | 724 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
725 | 0, /* src_mask */ |
| 726 | 0xffff, /* dst_mask */ | |
| b34976b6 | 727 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
728 | |
| 729 | /* Like R_PPC64_ADDR16_HA, but referring to the PLT table entry for | |
| 730 | the symbol. */ | |
| 731 | HOWTO (R_PPC64_PLT16_HA, /* type */ | |
| 732 | 16, /* rightshift */ | |
| 733 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 734 | 16, /* bitsize */ | |
| b34976b6 | 735 | FALSE, /* pc_relative */ |
| 5bd4f169 | 736 | 0, /* bitpos */ |
| f9c6b907 | 737 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 738 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 739 | "R_PPC64_PLT16_HA", /* name */ |
| b34976b6 | 740 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
741 | 0, /* src_mask */ |
| 742 | 0xffff, /* dst_mask */ | |
| b34976b6 | 743 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 744 | |
| c061c2d8 | 745 | /* 16-bit section relative relocation. */ |
| 5bd4f169 AM |
746 | HOWTO (R_PPC64_SECTOFF, /* type */ |
| 747 | 0, /* rightshift */ | |
| c061c2d8 AM |
748 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 749 | 16, /* bitsize */ | |
| b34976b6 | 750 | FALSE, /* pc_relative */ |
| 5bd4f169 | 751 | 0, /* bitpos */ |
| b80eed39 | 752 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 753 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 754 | "R_PPC64_SECTOFF", /* name */ |
| b34976b6 | 755 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 756 | 0, /* src_mask */ |
| c061c2d8 | 757 | 0xffff, /* dst_mask */ |
| b34976b6 | 758 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 759 | |
| c061c2d8 | 760 | /* Like R_PPC64_SECTOFF, but no overflow warning. */ |
| 5bd4f169 AM |
761 | HOWTO (R_PPC64_SECTOFF_LO, /* type */ |
| 762 | 0, /* rightshift */ | |
| 763 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 764 | 16, /* bitsize */ | |
| b34976b6 | 765 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
766 | 0, /* bitpos */ |
| 767 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 768 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 769 | "R_PPC64_SECTOFF_LO", /* name */ |
| b34976b6 | 770 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
771 | 0, /* src_mask */ |
| 772 | 0xffff, /* dst_mask */ | |
| b34976b6 | 773 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
774 | |
| 775 | /* 16-bit upper half section relative relocation. */ | |
| 776 | HOWTO (R_PPC64_SECTOFF_HI, /* type */ | |
| 777 | 16, /* rightshift */ | |
| 778 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 779 | 16, /* bitsize */ | |
| b34976b6 | 780 | FALSE, /* pc_relative */ |
| 5bd4f169 | 781 | 0, /* bitpos */ |
| f9c6b907 | 782 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 783 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 5bd4f169 | 784 | "R_PPC64_SECTOFF_HI", /* name */ |
| b34976b6 | 785 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
786 | 0, /* src_mask */ |
| 787 | 0xffff, /* dst_mask */ | |
| b34976b6 | 788 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
789 | |
| 790 | /* 16-bit upper half adjusted section relative relocation. */ | |
| 791 | HOWTO (R_PPC64_SECTOFF_HA, /* type */ | |
| 792 | 16, /* rightshift */ | |
| 793 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 794 | 16, /* bitsize */ | |
| b34976b6 | 795 | FALSE, /* pc_relative */ |
| 5bd4f169 | 796 | 0, /* bitpos */ |
| f9c6b907 | 797 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 798 | ppc64_elf_sectoff_ha_reloc, /* special_function */ |
| 5bd4f169 | 799 | "R_PPC64_SECTOFF_HA", /* name */ |
| b34976b6 | 800 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
801 | 0, /* src_mask */ |
| 802 | 0xffff, /* dst_mask */ | |
| b34976b6 | 803 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 804 | |
| 04c9666a AM |
805 | /* Like R_PPC64_REL24 without touching the two least significant bits. */ |
| 806 | HOWTO (R_PPC64_REL30, /* type */ | |
| 5bd4f169 AM |
807 | 2, /* rightshift */ |
| 808 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 809 | 30, /* bitsize */ | |
| b34976b6 | 810 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
811 | 0, /* bitpos */ |
| 812 | complain_overflow_dont, /* complain_on_overflow */ | |
| 813 | bfd_elf_generic_reloc, /* special_function */ | |
| 04c9666a | 814 | "R_PPC64_REL30", /* name */ |
| b34976b6 | 815 | FALSE, /* partial_inplace */ |
| d006db6c | 816 | 0, /* src_mask */ |
| 5bd4f169 | 817 | 0xfffffffc, /* dst_mask */ |
| b34976b6 | 818 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
819 | |
| 820 | /* Relocs in the 64-bit PowerPC ELF ABI, not in the 32-bit ABI. */ | |
| 821 | ||
| 822 | /* A standard 64-bit relocation. */ | |
| 823 | HOWTO (R_PPC64_ADDR64, /* type */ | |
| 824 | 0, /* rightshift */ | |
| 825 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 826 | 64, /* bitsize */ | |
| b34976b6 | 827 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
828 | 0, /* bitpos */ |
| 829 | complain_overflow_dont, /* complain_on_overflow */ | |
| 830 | bfd_elf_generic_reloc, /* special_function */ | |
| 831 | "R_PPC64_ADDR64", /* name */ | |
| b34976b6 | 832 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 833 | 0, /* src_mask */ |
| f5e87a1d | 834 | ONES (64), /* dst_mask */ |
| b34976b6 | 835 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
836 | |
| 837 | /* The bits 32-47 of an address. */ | |
| 838 | HOWTO (R_PPC64_ADDR16_HIGHER, /* type */ | |
| 839 | 32, /* rightshift */ | |
| 840 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 841 | 16, /* bitsize */ | |
| b34976b6 | 842 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
843 | 0, /* bitpos */ |
| 844 | complain_overflow_dont, /* complain_on_overflow */ | |
| 845 | bfd_elf_generic_reloc, /* special_function */ | |
| 846 | "R_PPC64_ADDR16_HIGHER", /* name */ | |
| b34976b6 | 847 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
848 | 0, /* src_mask */ |
| 849 | 0xffff, /* dst_mask */ | |
| b34976b6 | 850 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
851 | |
| 852 | /* The bits 32-47 of an address, plus 1 if the contents of the low | |
| 853 | 16 bits, treated as a signed number, is negative. */ | |
| 854 | HOWTO (R_PPC64_ADDR16_HIGHERA, /* type */ | |
| 855 | 32, /* rightshift */ | |
| 856 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 857 | 16, /* bitsize */ | |
| b34976b6 | 858 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
859 | 0, /* bitpos */ |
| 860 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 861 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 862 | "R_PPC64_ADDR16_HIGHERA", /* name */ |
| b34976b6 | 863 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
864 | 0, /* src_mask */ |
| 865 | 0xffff, /* dst_mask */ | |
| b34976b6 | 866 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
867 | |
| 868 | /* The bits 48-63 of an address. */ | |
| 869 | HOWTO (R_PPC64_ADDR16_HIGHEST,/* type */ | |
| 870 | 48, /* rightshift */ | |
| 871 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 872 | 16, /* bitsize */ | |
| b34976b6 | 873 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
874 | 0, /* bitpos */ |
| 875 | complain_overflow_dont, /* complain_on_overflow */ | |
| 876 | bfd_elf_generic_reloc, /* special_function */ | |
| 877 | "R_PPC64_ADDR16_HIGHEST", /* name */ | |
| b34976b6 | 878 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
879 | 0, /* src_mask */ |
| 880 | 0xffff, /* dst_mask */ | |
| b34976b6 | 881 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
882 | |
| 883 | /* The bits 48-63 of an address, plus 1 if the contents of the low | |
| 884 | 16 bits, treated as a signed number, is negative. */ | |
| 885 | HOWTO (R_PPC64_ADDR16_HIGHESTA,/* type */ | |
| 886 | 48, /* rightshift */ | |
| 887 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 888 | 16, /* bitsize */ | |
| b34976b6 | 889 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
890 | 0, /* bitpos */ |
| 891 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 892 | ppc64_elf_ha_reloc, /* special_function */ |
| 5bd4f169 | 893 | "R_PPC64_ADDR16_HIGHESTA", /* name */ |
| b34976b6 | 894 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
895 | 0, /* src_mask */ |
| 896 | 0xffff, /* dst_mask */ | |
| b34976b6 | 897 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
898 | |
| 899 | /* Like ADDR64, but may be unaligned. */ | |
| 900 | HOWTO (R_PPC64_UADDR64, /* type */ | |
| 901 | 0, /* rightshift */ | |
| 902 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 903 | 64, /* bitsize */ | |
| b34976b6 | 904 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
905 | 0, /* bitpos */ |
| 906 | complain_overflow_dont, /* complain_on_overflow */ | |
| 907 | bfd_elf_generic_reloc, /* special_function */ | |
| 908 | "R_PPC64_UADDR64", /* name */ | |
| b34976b6 | 909 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 910 | 0, /* src_mask */ |
| f5e87a1d | 911 | ONES (64), /* dst_mask */ |
| b34976b6 | 912 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
913 | |
| 914 | /* 64-bit relative relocation. */ | |
| 915 | HOWTO (R_PPC64_REL64, /* type */ | |
| 916 | 0, /* rightshift */ | |
| 917 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 918 | 64, /* bitsize */ | |
| b34976b6 | 919 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
920 | 0, /* bitpos */ |
| 921 | complain_overflow_dont, /* complain_on_overflow */ | |
| 922 | bfd_elf_generic_reloc, /* special_function */ | |
| 923 | "R_PPC64_REL64", /* name */ | |
| b34976b6 | 924 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 925 | 0, /* src_mask */ |
| f5e87a1d | 926 | ONES (64), /* dst_mask */ |
| b34976b6 | 927 | TRUE), /* pcrel_offset */ |
| 5bd4f169 | 928 | |
| cedb70c5 | 929 | /* 64-bit relocation to the symbol's procedure linkage table. */ |
| 5bd4f169 AM |
930 | HOWTO (R_PPC64_PLT64, /* type */ |
| 931 | 0, /* rightshift */ | |
| 932 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 933 | 64, /* bitsize */ | |
| b34976b6 | 934 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
935 | 0, /* bitpos */ |
| 936 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 937 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 938 | "R_PPC64_PLT64", /* name */ |
| b34976b6 | 939 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 940 | 0, /* src_mask */ |
| f5e87a1d | 941 | ONES (64), /* dst_mask */ |
| b34976b6 | 942 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
943 | |
| 944 | /* 64-bit PC relative relocation to the symbol's procedure linkage | |
| 945 | table. */ | |
| 946 | /* FIXME: R_PPC64_PLTREL64 not supported. */ | |
| 947 | HOWTO (R_PPC64_PLTREL64, /* type */ | |
| 948 | 0, /* rightshift */ | |
| 949 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 950 | 64, /* bitsize */ | |
| b34976b6 | 951 | TRUE, /* pc_relative */ |
| 5bd4f169 AM |
952 | 0, /* bitpos */ |
| 953 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 954 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 5bd4f169 | 955 | "R_PPC64_PLTREL64", /* name */ |
| b34976b6 | 956 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 957 | 0, /* src_mask */ |
| f5e87a1d | 958 | ONES (64), /* dst_mask */ |
| b34976b6 | 959 | TRUE), /* pcrel_offset */ |
| 5bd4f169 AM |
960 | |
| 961 | /* 16 bit TOC-relative relocation. */ | |
| 962 | ||
| 963 | /* R_PPC64_TOC16 47 half16* S + A - .TOC. */ | |
| 964 | HOWTO (R_PPC64_TOC16, /* type */ | |
| 965 | 0, /* rightshift */ | |
| 966 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 967 | 16, /* bitsize */ | |
| b34976b6 | 968 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
969 | 0, /* bitpos */ |
| 970 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 971 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 972 | "R_PPC64_TOC16", /* name */ |
| b34976b6 | 973 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
974 | 0, /* src_mask */ |
| 975 | 0xffff, /* dst_mask */ | |
| b34976b6 | 976 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
977 | |
| 978 | /* 16 bit TOC-relative relocation without overflow. */ | |
| 979 | ||
| 980 | /* R_PPC64_TOC16_LO 48 half16 #lo (S + A - .TOC.) */ | |
| 981 | HOWTO (R_PPC64_TOC16_LO, /* type */ | |
| 982 | 0, /* rightshift */ | |
| 983 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 984 | 16, /* bitsize */ | |
| b34976b6 | 985 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
986 | 0, /* bitpos */ |
| 987 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 988 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 989 | "R_PPC64_TOC16_LO", /* name */ |
| b34976b6 | 990 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
991 | 0, /* src_mask */ |
| 992 | 0xffff, /* dst_mask */ | |
| b34976b6 | 993 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
994 | |
| 995 | /* 16 bit TOC-relative relocation, high 16 bits. */ | |
| 996 | ||
| 997 | /* R_PPC64_TOC16_HI 49 half16 #hi (S + A - .TOC.) */ | |
| 998 | HOWTO (R_PPC64_TOC16_HI, /* type */ | |
| 999 | 16, /* rightshift */ | |
| 1000 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1001 | 16, /* bitsize */ | |
| b34976b6 | 1002 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1003 | 0, /* bitpos */ |
| f9c6b907 | 1004 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1005 | ppc64_elf_toc_reloc, /* special_function */ |
| 5bd4f169 | 1006 | "R_PPC64_TOC16_HI", /* name */ |
| b34976b6 | 1007 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1008 | 0, /* src_mask */ |
| 1009 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1010 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1011 | |
| 1012 | /* 16 bit TOC-relative relocation, high 16 bits, plus 1 if the | |
| 1013 | contents of the low 16 bits, treated as a signed number, is | |
| 1014 | negative. */ | |
| 1015 | ||
| 1016 | /* R_PPC64_TOC16_HA 50 half16 #ha (S + A - .TOC.) */ | |
| 1017 | HOWTO (R_PPC64_TOC16_HA, /* type */ | |
| 1018 | 16, /* rightshift */ | |
| 1019 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1020 | 16, /* bitsize */ | |
| b34976b6 | 1021 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1022 | 0, /* bitpos */ |
| f9c6b907 | 1023 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1024 | ppc64_elf_toc_ha_reloc, /* special_function */ |
| 5bd4f169 | 1025 | "R_PPC64_TOC16_HA", /* name */ |
| b34976b6 | 1026 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1027 | 0, /* src_mask */ |
| 1028 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1029 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1030 | |
| 1031 | /* 64-bit relocation; insert value of TOC base (.TOC.). */ | |
| 1032 | ||
| 1033 | /* R_PPC64_TOC 51 doubleword64 .TOC. */ | |
| 1034 | HOWTO (R_PPC64_TOC, /* type */ | |
| 1035 | 0, /* rightshift */ | |
| 1036 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1037 | 64, /* bitsize */ | |
| b34976b6 | 1038 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1039 | 0, /* bitpos */ |
| b80eed39 | 1040 | complain_overflow_dont, /* complain_on_overflow */ |
| 805fc799 | 1041 | ppc64_elf_toc64_reloc, /* special_function */ |
| 5bd4f169 | 1042 | "R_PPC64_TOC", /* name */ |
| b34976b6 | 1043 | FALSE, /* partial_inplace */ |
| 5bd4f169 | 1044 | 0, /* src_mask */ |
| f5e87a1d | 1045 | ONES (64), /* dst_mask */ |
| b34976b6 | 1046 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
1047 | |
| 1048 | /* Like R_PPC64_GOT16, but also informs the link editor that the | |
| 1049 | value to relocate may (!) refer to a PLT entry which the link | |
| 1050 | editor (a) may replace with the symbol value. If the link editor | |
| 1051 | is unable to fully resolve the symbol, it may (b) create a PLT | |
| 1052 | entry and store the address to the new PLT entry in the GOT. | |
| 1053 | This permits lazy resolution of function symbols at run time. | |
| 1054 | The link editor may also skip all of this and just (c) emit a | |
| 1055 | R_PPC64_GLOB_DAT to tie the symbol to the GOT entry. */ | |
| 1056 | /* FIXME: R_PPC64_PLTGOT16 not implemented. */ | |
| 1057 | HOWTO (R_PPC64_PLTGOT16, /* type */ | |
| 1058 | 0, /* rightshift */ | |
| 1059 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1060 | 16, /* bitsize */ | |
| b34976b6 | 1061 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1062 | 0, /* bitpos */ |
| 1063 | complain_overflow_signed, /* complain_on_overflow */ | |
| 805fc799 | 1064 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb AM |
1065 | "R_PPC64_PLTGOT16", /* name */ |
| 1066 | FALSE, /* partial_inplace */ | |
| 1067 | 0, /* src_mask */ | |
| 1068 | 0xffff, /* dst_mask */ | |
| 1069 | FALSE), /* pcrel_offset */ | |
| 1070 | ||
| 1071 | /* Like R_PPC64_PLTGOT16, but without overflow. */ | |
| 1072 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1073 | HOWTO (R_PPC64_PLTGOT16_LO, /* type */ | |
| 1074 | 0, /* rightshift */ | |
| 1075 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1076 | 16, /* bitsize */ | |
| 1077 | FALSE, /* pc_relative */ | |
| 1078 | 0, /* bitpos */ | |
| 1079 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1080 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1081 | "R_PPC64_PLTGOT16_LO", /* name */ | |
| 1082 | FALSE, /* partial_inplace */ | |
| 1083 | 0, /* src_mask */ | |
| 1084 | 0xffff, /* dst_mask */ | |
| 1085 | FALSE), /* pcrel_offset */ | |
| 1086 | ||
| 1087 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address. */ | |
| 1088 | /* FIXME: R_PPC64_PLTGOT16_HI not implemented. */ | |
| 1089 | HOWTO (R_PPC64_PLTGOT16_HI, /* type */ | |
| 1090 | 16, /* rightshift */ | |
| 1091 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1092 | 16, /* bitsize */ | |
| 1093 | FALSE, /* pc_relative */ | |
| 1094 | 0, /* bitpos */ | |
| f9c6b907 | 1095 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1096 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1097 | "R_PPC64_PLTGOT16_HI", /* name */ | |
| 1098 | FALSE, /* partial_inplace */ | |
| 1099 | 0, /* src_mask */ | |
| 1100 | 0xffff, /* dst_mask */ | |
| 1101 | FALSE), /* pcrel_offset */ | |
| 1102 | ||
| 1103 | /* Like R_PPC64_PLT_GOT16, but using bits 16-31 of the address, plus | |
| 1104 | 1 if the contents of the low 16 bits, treated as a signed number, | |
| 1105 | is negative. */ | |
| 1106 | /* FIXME: R_PPC64_PLTGOT16_HA not implemented. */ | |
| 1107 | HOWTO (R_PPC64_PLTGOT16_HA, /* type */ | |
| 1108 | 16, /* rightshift */ | |
| 1109 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1110 | 16, /* bitsize */ | |
| 1111 | FALSE, /* pc_relative */ | |
| 1112 | 0, /* bitpos */ | |
| f9c6b907 | 1113 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1114 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1115 | "R_PPC64_PLTGOT16_HA", /* name */ | |
| 1116 | FALSE, /* partial_inplace */ | |
| 1117 | 0, /* src_mask */ | |
| 1118 | 0xffff, /* dst_mask */ | |
| 1119 | FALSE), /* pcrel_offset */ | |
| 1120 | ||
| 1121 | /* Like R_PPC64_ADDR16, but for instructions with a DS field. */ | |
| 1122 | HOWTO (R_PPC64_ADDR16_DS, /* type */ | |
| 1123 | 0, /* rightshift */ | |
| 1124 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1125 | 16, /* bitsize */ | |
| 1126 | FALSE, /* pc_relative */ | |
| 1127 | 0, /* bitpos */ | |
| b80eed39 | 1128 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1129 | bfd_elf_generic_reloc, /* special_function */ |
| 1130 | "R_PPC64_ADDR16_DS", /* name */ | |
| 1131 | FALSE, /* partial_inplace */ | |
| 1132 | 0, /* src_mask */ | |
| 1133 | 0xfffc, /* dst_mask */ | |
| 1134 | FALSE), /* pcrel_offset */ | |
| 1135 | ||
| 1136 | /* Like R_PPC64_ADDR16_LO, but for instructions with a DS field. */ | |
| 1137 | HOWTO (R_PPC64_ADDR16_LO_DS, /* type */ | |
| 1138 | 0, /* rightshift */ | |
| 1139 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1140 | 16, /* bitsize */ | |
| 1141 | FALSE, /* pc_relative */ | |
| 1142 | 0, /* bitpos */ | |
| 1143 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1144 | bfd_elf_generic_reloc, /* special_function */ | |
| 1145 | "R_PPC64_ADDR16_LO_DS",/* name */ | |
| 1146 | FALSE, /* partial_inplace */ | |
| 1147 | 0, /* src_mask */ | |
| 1148 | 0xfffc, /* dst_mask */ | |
| 1149 | FALSE), /* pcrel_offset */ | |
| 1150 | ||
| 1151 | /* Like R_PPC64_GOT16, but for instructions with a DS field. */ | |
| 1152 | HOWTO (R_PPC64_GOT16_DS, /* type */ | |
| 1153 | 0, /* rightshift */ | |
| 1154 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1155 | 16, /* bitsize */ | |
| 1156 | FALSE, /* pc_relative */ | |
| 1157 | 0, /* bitpos */ | |
| 1158 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1159 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1160 | "R_PPC64_GOT16_DS", /* name */ | |
| 1161 | FALSE, /* partial_inplace */ | |
| 1162 | 0, /* src_mask */ | |
| 1163 | 0xfffc, /* dst_mask */ | |
| 1164 | FALSE), /* pcrel_offset */ | |
| 1165 | ||
| 1166 | /* Like R_PPC64_GOT16_LO, but for instructions with a DS field. */ | |
| 1167 | HOWTO (R_PPC64_GOT16_LO_DS, /* type */ | |
| 1168 | 0, /* rightshift */ | |
| 1169 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1170 | 16, /* bitsize */ | |
| 1171 | FALSE, /* pc_relative */ | |
| 1172 | 0, /* bitpos */ | |
| 1173 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1174 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1175 | "R_PPC64_GOT16_LO_DS", /* name */ | |
| 1176 | FALSE, /* partial_inplace */ | |
| 1177 | 0, /* src_mask */ | |
| 1178 | 0xfffc, /* dst_mask */ | |
| 1179 | FALSE), /* pcrel_offset */ | |
| 1180 | ||
| 1181 | /* Like R_PPC64_PLT16_LO, but for instructions with a DS field. */ | |
| 1182 | HOWTO (R_PPC64_PLT16_LO_DS, /* type */ | |
| 1183 | 0, /* rightshift */ | |
| 1184 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1185 | 16, /* bitsize */ | |
| 1186 | FALSE, /* pc_relative */ | |
| 1187 | 0, /* bitpos */ | |
| 1188 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1189 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1190 | "R_PPC64_PLT16_LO_DS", /* name */ | |
| 1191 | FALSE, /* partial_inplace */ | |
| 1192 | 0, /* src_mask */ | |
| 1193 | 0xfffc, /* dst_mask */ | |
| 1194 | FALSE), /* pcrel_offset */ | |
| 1195 | ||
| 1196 | /* Like R_PPC64_SECTOFF, but for instructions with a DS field. */ | |
| 1197 | HOWTO (R_PPC64_SECTOFF_DS, /* type */ | |
| 1198 | 0, /* rightshift */ | |
| 1199 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1200 | 16, /* bitsize */ | |
| 1201 | FALSE, /* pc_relative */ | |
| 1202 | 0, /* bitpos */ | |
| b80eed39 | 1203 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1204 | ppc64_elf_sectoff_reloc, /* special_function */ |
| 1205 | "R_PPC64_SECTOFF_DS", /* name */ | |
| 1206 | FALSE, /* partial_inplace */ | |
| 1207 | 0, /* src_mask */ | |
| 1208 | 0xfffc, /* dst_mask */ | |
| 1209 | FALSE), /* pcrel_offset */ | |
| 1210 | ||
| 1211 | /* Like R_PPC64_SECTOFF_LO, but for instructions with a DS field. */ | |
| 1212 | HOWTO (R_PPC64_SECTOFF_LO_DS, /* type */ | |
| 1213 | 0, /* rightshift */ | |
| 1214 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1215 | 16, /* bitsize */ | |
| 1216 | FALSE, /* pc_relative */ | |
| 1217 | 0, /* bitpos */ | |
| 1218 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1219 | ppc64_elf_sectoff_reloc, /* special_function */ | |
| 1220 | "R_PPC64_SECTOFF_LO_DS",/* name */ | |
| 1221 | FALSE, /* partial_inplace */ | |
| 1222 | 0, /* src_mask */ | |
| 1223 | 0xfffc, /* dst_mask */ | |
| 1224 | FALSE), /* pcrel_offset */ | |
| 1225 | ||
| 1226 | /* Like R_PPC64_TOC16, but for instructions with a DS field. */ | |
| 1227 | HOWTO (R_PPC64_TOC16_DS, /* type */ | |
| 1228 | 0, /* rightshift */ | |
| 1229 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1230 | 16, /* bitsize */ | |
| 1231 | FALSE, /* pc_relative */ | |
| 1232 | 0, /* bitpos */ | |
| 1233 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1234 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1235 | "R_PPC64_TOC16_DS", /* name */ | |
| 1236 | FALSE, /* partial_inplace */ | |
| 1237 | 0, /* src_mask */ | |
| 1238 | 0xfffc, /* dst_mask */ | |
| 1239 | FALSE), /* pcrel_offset */ | |
| 1240 | ||
| 1241 | /* Like R_PPC64_TOC16_LO, but for instructions with a DS field. */ | |
| 1242 | HOWTO (R_PPC64_TOC16_LO_DS, /* type */ | |
| 1243 | 0, /* rightshift */ | |
| 1244 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1245 | 16, /* bitsize */ | |
| 1246 | FALSE, /* pc_relative */ | |
| 1247 | 0, /* bitpos */ | |
| 1248 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1249 | ppc64_elf_toc_reloc, /* special_function */ | |
| 1250 | "R_PPC64_TOC16_LO_DS", /* name */ | |
| 1251 | FALSE, /* partial_inplace */ | |
| 1252 | 0, /* src_mask */ | |
| 1253 | 0xfffc, /* dst_mask */ | |
| 1254 | FALSE), /* pcrel_offset */ | |
| 1255 | ||
| 1256 | /* Like R_PPC64_PLTGOT16, but for instructions with a DS field. */ | |
| 1257 | /* FIXME: R_PPC64_PLTGOT16_DS not implemented. */ | |
| 6bfdb61b | 1258 | HOWTO (R_PPC64_PLTGOT16_DS, /* type */ |
| 411e1bfb AM |
1259 | 0, /* rightshift */ |
| 1260 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1261 | 16, /* bitsize */ | |
| 1262 | FALSE, /* pc_relative */ | |
| 1263 | 0, /* bitpos */ | |
| 1264 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1265 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1266 | "R_PPC64_PLTGOT16_DS", /* name */ | |
| 1267 | FALSE, /* partial_inplace */ | |
| 1268 | 0, /* src_mask */ | |
| 1269 | 0xfffc, /* dst_mask */ | |
| 1270 | FALSE), /* pcrel_offset */ | |
| 1271 | ||
| 1272 | /* Like R_PPC64_PLTGOT16_LO, but for instructions with a DS field. */ | |
| 1273 | /* FIXME: R_PPC64_PLTGOT16_LO not implemented. */ | |
| 1274 | HOWTO (R_PPC64_PLTGOT16_LO_DS,/* type */ | |
| 1275 | 0, /* rightshift */ | |
| 1276 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1277 | 16, /* bitsize */ | |
| 1278 | FALSE, /* pc_relative */ | |
| 1279 | 0, /* bitpos */ | |
| 1280 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1281 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1282 | "R_PPC64_PLTGOT16_LO_DS",/* name */ | |
| 1283 | FALSE, /* partial_inplace */ | |
| 1284 | 0, /* src_mask */ | |
| 1285 | 0xfffc, /* dst_mask */ | |
| 1286 | FALSE), /* pcrel_offset */ | |
| 1287 | ||
| 727fc41e | 1288 | /* Marker relocs for TLS. */ |
| 411e1bfb AM |
1289 | HOWTO (R_PPC64_TLS, |
| 1290 | 0, /* rightshift */ | |
| 1291 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1292 | 32, /* bitsize */ | |
| 1293 | FALSE, /* pc_relative */ | |
| 1294 | 0, /* bitpos */ | |
| 1295 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1296 | bfd_elf_generic_reloc, /* special_function */ | |
| 1297 | "R_PPC64_TLS", /* name */ | |
| 1298 | FALSE, /* partial_inplace */ | |
| 1299 | 0, /* src_mask */ | |
| 1300 | 0, /* dst_mask */ | |
| 1301 | FALSE), /* pcrel_offset */ | |
| 1302 | ||
| 727fc41e AM |
1303 | HOWTO (R_PPC64_TLSGD, |
| 1304 | 0, /* rightshift */ | |
| 1305 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1306 | 32, /* bitsize */ | |
| 1307 | FALSE, /* pc_relative */ | |
| 1308 | 0, /* bitpos */ | |
| 1309 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1310 | bfd_elf_generic_reloc, /* special_function */ | |
| 1311 | "R_PPC64_TLSGD", /* name */ | |
| 1312 | FALSE, /* partial_inplace */ | |
| 1313 | 0, /* src_mask */ | |
| 1314 | 0, /* dst_mask */ | |
| 1315 | FALSE), /* pcrel_offset */ | |
| 1316 | ||
| 1317 | HOWTO (R_PPC64_TLSLD, | |
| 1318 | 0, /* rightshift */ | |
| 1319 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1320 | 32, /* bitsize */ | |
| 1321 | FALSE, /* pc_relative */ | |
| 1322 | 0, /* bitpos */ | |
| 1323 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1324 | bfd_elf_generic_reloc, /* special_function */ | |
| 1325 | "R_PPC64_TLSLD", /* name */ | |
| 1326 | FALSE, /* partial_inplace */ | |
| 1327 | 0, /* src_mask */ | |
| 1328 | 0, /* dst_mask */ | |
| 1329 | FALSE), /* pcrel_offset */ | |
| 1330 | ||
| 3b421ab3 AM |
1331 | HOWTO (R_PPC64_TOCSAVE, |
| 1332 | 0, /* rightshift */ | |
| 1333 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1334 | 32, /* bitsize */ | |
| 1335 | FALSE, /* pc_relative */ | |
| 1336 | 0, /* bitpos */ | |
| 1337 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1338 | bfd_elf_generic_reloc, /* special_function */ | |
| 1339 | "R_PPC64_TOCSAVE", /* name */ | |
| 1340 | FALSE, /* partial_inplace */ | |
| 1341 | 0, /* src_mask */ | |
| 1342 | 0, /* dst_mask */ | |
| 1343 | FALSE), /* pcrel_offset */ | |
| 1344 | ||
| 411e1bfb AM |
1345 | /* Computes the load module index of the load module that contains the |
| 1346 | definition of its TLS sym. */ | |
| 1347 | HOWTO (R_PPC64_DTPMOD64, | |
| 1348 | 0, /* rightshift */ | |
| 1349 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1350 | 64, /* bitsize */ | |
| 1351 | FALSE, /* pc_relative */ | |
| 1352 | 0, /* bitpos */ | |
| 1353 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1354 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1355 | "R_PPC64_DTPMOD64", /* name */ | |
| 1356 | FALSE, /* partial_inplace */ | |
| 1357 | 0, /* src_mask */ | |
| 1358 | ONES (64), /* dst_mask */ | |
| 1359 | FALSE), /* pcrel_offset */ | |
| 1360 | ||
| 1361 | /* Computes a dtv-relative displacement, the difference between the value | |
| 1362 | of sym+add and the base address of the thread-local storage block that | |
| 1363 | contains the definition of sym, minus 0x8000. */ | |
| 1364 | HOWTO (R_PPC64_DTPREL64, | |
| 1365 | 0, /* rightshift */ | |
| 1366 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1367 | 64, /* bitsize */ | |
| 1368 | FALSE, /* pc_relative */ | |
| 1369 | 0, /* bitpos */ | |
| 1370 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1371 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1372 | "R_PPC64_DTPREL64", /* name */ | |
| 1373 | FALSE, /* partial_inplace */ | |
| 1374 | 0, /* src_mask */ | |
| 1375 | ONES (64), /* dst_mask */ | |
| 1376 | FALSE), /* pcrel_offset */ | |
| 1377 | ||
| 1378 | /* A 16 bit dtprel reloc. */ | |
| 1379 | HOWTO (R_PPC64_DTPREL16, | |
| 1380 | 0, /* rightshift */ | |
| 1381 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1382 | 16, /* bitsize */ | |
| 1383 | FALSE, /* pc_relative */ | |
| 1384 | 0, /* bitpos */ | |
| 1385 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1386 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1387 | "R_PPC64_DTPREL16", /* name */ | |
| 1388 | FALSE, /* partial_inplace */ | |
| 1389 | 0, /* src_mask */ | |
| 1390 | 0xffff, /* dst_mask */ | |
| 1391 | FALSE), /* pcrel_offset */ | |
| 1392 | ||
| 1393 | /* Like DTPREL16, but no overflow. */ | |
| 1394 | HOWTO (R_PPC64_DTPREL16_LO, | |
| 1395 | 0, /* rightshift */ | |
| 1396 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1397 | 16, /* bitsize */ | |
| 1398 | FALSE, /* pc_relative */ | |
| 1399 | 0, /* bitpos */ | |
| 1400 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1401 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1402 | "R_PPC64_DTPREL16_LO", /* name */ | |
| 1403 | FALSE, /* partial_inplace */ | |
| 1404 | 0, /* src_mask */ | |
| 1405 | 0xffff, /* dst_mask */ | |
| 1406 | FALSE), /* pcrel_offset */ | |
| 1407 | ||
| 1408 | /* Like DTPREL16_LO, but next higher group of 16 bits. */ | |
| 1409 | HOWTO (R_PPC64_DTPREL16_HI, | |
| 1410 | 16, /* rightshift */ | |
| 1411 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1412 | 16, /* bitsize */ | |
| 1413 | FALSE, /* pc_relative */ | |
| 1414 | 0, /* bitpos */ | |
| f9c6b907 | 1415 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1416 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1417 | "R_PPC64_DTPREL16_HI", /* name */ | |
| 1418 | FALSE, /* partial_inplace */ | |
| 1419 | 0, /* src_mask */ | |
| 1420 | 0xffff, /* dst_mask */ | |
| 1421 | FALSE), /* pcrel_offset */ | |
| 1422 | ||
| 1423 | /* Like DTPREL16_HI, but adjust for low 16 bits. */ | |
| 1424 | HOWTO (R_PPC64_DTPREL16_HA, | |
| 1425 | 16, /* rightshift */ | |
| 1426 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1427 | 16, /* bitsize */ | |
| 1428 | FALSE, /* pc_relative */ | |
| 1429 | 0, /* bitpos */ | |
| f9c6b907 | 1430 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1431 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1432 | "R_PPC64_DTPREL16_HA", /* name */ | |
| 1433 | FALSE, /* partial_inplace */ | |
| 1434 | 0, /* src_mask */ | |
| 1435 | 0xffff, /* dst_mask */ | |
| 1436 | FALSE), /* pcrel_offset */ | |
| 1437 | ||
| 1438 | /* Like DTPREL16_HI, but next higher group of 16 bits. */ | |
| 1439 | HOWTO (R_PPC64_DTPREL16_HIGHER, | |
| 1440 | 32, /* rightshift */ | |
| 1441 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1442 | 16, /* bitsize */ | |
| 1443 | FALSE, /* pc_relative */ | |
| 1444 | 0, /* bitpos */ | |
| 1445 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1446 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1447 | "R_PPC64_DTPREL16_HIGHER", /* name */ | |
| 1448 | FALSE, /* partial_inplace */ | |
| 1449 | 0, /* src_mask */ | |
| 1450 | 0xffff, /* dst_mask */ | |
| 1451 | FALSE), /* pcrel_offset */ | |
| 1452 | ||
| 1453 | /* Like DTPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1454 | HOWTO (R_PPC64_DTPREL16_HIGHERA, | |
| 1455 | 32, /* rightshift */ | |
| 1456 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1457 | 16, /* bitsize */ | |
| 1458 | FALSE, /* pc_relative */ | |
| 1459 | 0, /* bitpos */ | |
| 1460 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1461 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1462 | "R_PPC64_DTPREL16_HIGHERA", /* name */ | |
| 1463 | FALSE, /* partial_inplace */ | |
| 1464 | 0, /* src_mask */ | |
| 1465 | 0xffff, /* dst_mask */ | |
| 1466 | FALSE), /* pcrel_offset */ | |
| 1467 | ||
| 1468 | /* Like DTPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1469 | HOWTO (R_PPC64_DTPREL16_HIGHEST, | |
| 1470 | 48, /* rightshift */ | |
| 1471 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1472 | 16, /* bitsize */ | |
| 1473 | FALSE, /* pc_relative */ | |
| 1474 | 0, /* bitpos */ | |
| 1475 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1476 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1477 | "R_PPC64_DTPREL16_HIGHEST", /* name */ | |
| 1478 | FALSE, /* partial_inplace */ | |
| 1479 | 0, /* src_mask */ | |
| 1480 | 0xffff, /* dst_mask */ | |
| 1481 | FALSE), /* pcrel_offset */ | |
| 1482 | ||
| 1483 | /* Like DTPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1484 | HOWTO (R_PPC64_DTPREL16_HIGHESTA, | |
| 1485 | 48, /* rightshift */ | |
| 1486 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1487 | 16, /* bitsize */ | |
| 1488 | FALSE, /* pc_relative */ | |
| 1489 | 0, /* bitpos */ | |
| 1490 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1491 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1492 | "R_PPC64_DTPREL16_HIGHESTA", /* name */ | |
| 1493 | FALSE, /* partial_inplace */ | |
| 1494 | 0, /* src_mask */ | |
| 1495 | 0xffff, /* dst_mask */ | |
| 1496 | FALSE), /* pcrel_offset */ | |
| 1497 | ||
| 1498 | /* Like DTPREL16, but for insns with a DS field. */ | |
| 1499 | HOWTO (R_PPC64_DTPREL16_DS, | |
| 1500 | 0, /* rightshift */ | |
| 1501 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1502 | 16, /* bitsize */ | |
| 1503 | FALSE, /* pc_relative */ | |
| 1504 | 0, /* bitpos */ | |
| 1505 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1506 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1507 | "R_PPC64_DTPREL16_DS", /* name */ | |
| 1508 | FALSE, /* partial_inplace */ | |
| 1509 | 0, /* src_mask */ | |
| 1510 | 0xfffc, /* dst_mask */ | |
| 1511 | FALSE), /* pcrel_offset */ | |
| 1512 | ||
| 1513 | /* Like DTPREL16_DS, but no overflow. */ | |
| 1514 | HOWTO (R_PPC64_DTPREL16_LO_DS, | |
| 1515 | 0, /* rightshift */ | |
| 1516 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1517 | 16, /* bitsize */ | |
| 1518 | FALSE, /* pc_relative */ | |
| 1519 | 0, /* bitpos */ | |
| 1520 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1521 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1522 | "R_PPC64_DTPREL16_LO_DS", /* name */ | |
| 1523 | FALSE, /* partial_inplace */ | |
| 1524 | 0, /* src_mask */ | |
| 1525 | 0xfffc, /* dst_mask */ | |
| 1526 | FALSE), /* pcrel_offset */ | |
| 1527 | ||
| 1528 | /* Computes a tp-relative displacement, the difference between the value of | |
| 1529 | sym+add and the value of the thread pointer (r13). */ | |
| 1530 | HOWTO (R_PPC64_TPREL64, | |
| 1531 | 0, /* rightshift */ | |
| 1532 | 4, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1533 | 64, /* bitsize */ | |
| 1534 | FALSE, /* pc_relative */ | |
| 1535 | 0, /* bitpos */ | |
| 1536 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1537 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1538 | "R_PPC64_TPREL64", /* name */ | |
| 1539 | FALSE, /* partial_inplace */ | |
| 1540 | 0, /* src_mask */ | |
| 1541 | ONES (64), /* dst_mask */ | |
| 1542 | FALSE), /* pcrel_offset */ | |
| 1543 | ||
| 1544 | /* A 16 bit tprel reloc. */ | |
| 1545 | HOWTO (R_PPC64_TPREL16, | |
| 1546 | 0, /* rightshift */ | |
| 1547 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1548 | 16, /* bitsize */ | |
| 1549 | FALSE, /* pc_relative */ | |
| 1550 | 0, /* bitpos */ | |
| 1551 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1552 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1553 | "R_PPC64_TPREL16", /* name */ | |
| 1554 | FALSE, /* partial_inplace */ | |
| 1555 | 0, /* src_mask */ | |
| 1556 | 0xffff, /* dst_mask */ | |
| 1557 | FALSE), /* pcrel_offset */ | |
| 1558 | ||
| 1559 | /* Like TPREL16, but no overflow. */ | |
| 1560 | HOWTO (R_PPC64_TPREL16_LO, | |
| 1561 | 0, /* rightshift */ | |
| 1562 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1563 | 16, /* bitsize */ | |
| 1564 | FALSE, /* pc_relative */ | |
| 1565 | 0, /* bitpos */ | |
| 1566 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1567 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1568 | "R_PPC64_TPREL16_LO", /* name */ | |
| 1569 | FALSE, /* partial_inplace */ | |
| 1570 | 0, /* src_mask */ | |
| 1571 | 0xffff, /* dst_mask */ | |
| 1572 | FALSE), /* pcrel_offset */ | |
| 1573 | ||
| 1574 | /* Like TPREL16_LO, but next higher group of 16 bits. */ | |
| 1575 | HOWTO (R_PPC64_TPREL16_HI, | |
| 1576 | 16, /* rightshift */ | |
| 1577 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1578 | 16, /* bitsize */ | |
| 1579 | FALSE, /* pc_relative */ | |
| 1580 | 0, /* bitpos */ | |
| f9c6b907 | 1581 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1582 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1583 | "R_PPC64_TPREL16_HI", /* name */ | |
| 1584 | FALSE, /* partial_inplace */ | |
| 1585 | 0, /* src_mask */ | |
| 1586 | 0xffff, /* dst_mask */ | |
| 1587 | FALSE), /* pcrel_offset */ | |
| 1588 | ||
| 1589 | /* Like TPREL16_HI, but adjust for low 16 bits. */ | |
| 1590 | HOWTO (R_PPC64_TPREL16_HA, | |
| 1591 | 16, /* rightshift */ | |
| 1592 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1593 | 16, /* bitsize */ | |
| 1594 | FALSE, /* pc_relative */ | |
| 1595 | 0, /* bitpos */ | |
| f9c6b907 | 1596 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1597 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1598 | "R_PPC64_TPREL16_HA", /* name */ | |
| 1599 | FALSE, /* partial_inplace */ | |
| 1600 | 0, /* src_mask */ | |
| 1601 | 0xffff, /* dst_mask */ | |
| 1602 | FALSE), /* pcrel_offset */ | |
| 1603 | ||
| 1604 | /* Like TPREL16_HI, but next higher group of 16 bits. */ | |
| 1605 | HOWTO (R_PPC64_TPREL16_HIGHER, | |
| 1606 | 32, /* rightshift */ | |
| 1607 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1608 | 16, /* bitsize */ | |
| 1609 | FALSE, /* pc_relative */ | |
| 1610 | 0, /* bitpos */ | |
| 1611 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1612 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1613 | "R_PPC64_TPREL16_HIGHER", /* name */ | |
| 1614 | FALSE, /* partial_inplace */ | |
| 1615 | 0, /* src_mask */ | |
| 1616 | 0xffff, /* dst_mask */ | |
| 1617 | FALSE), /* pcrel_offset */ | |
| 1618 | ||
| 1619 | /* Like TPREL16_HIGHER, but adjust for low 16 bits. */ | |
| 1620 | HOWTO (R_PPC64_TPREL16_HIGHERA, | |
| 1621 | 32, /* rightshift */ | |
| 1622 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1623 | 16, /* bitsize */ | |
| 1624 | FALSE, /* pc_relative */ | |
| 1625 | 0, /* bitpos */ | |
| 1626 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1627 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1628 | "R_PPC64_TPREL16_HIGHERA", /* name */ | |
| 1629 | FALSE, /* partial_inplace */ | |
| 1630 | 0, /* src_mask */ | |
| 1631 | 0xffff, /* dst_mask */ | |
| 1632 | FALSE), /* pcrel_offset */ | |
| 1633 | ||
| 1634 | /* Like TPREL16_HIGHER, but next higher group of 16 bits. */ | |
| 1635 | HOWTO (R_PPC64_TPREL16_HIGHEST, | |
| 1636 | 48, /* rightshift */ | |
| 1637 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1638 | 16, /* bitsize */ | |
| 1639 | FALSE, /* pc_relative */ | |
| 1640 | 0, /* bitpos */ | |
| 1641 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1642 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1643 | "R_PPC64_TPREL16_HIGHEST", /* name */ | |
| 1644 | FALSE, /* partial_inplace */ | |
| 1645 | 0, /* src_mask */ | |
| 1646 | 0xffff, /* dst_mask */ | |
| 1647 | FALSE), /* pcrel_offset */ | |
| 1648 | ||
| 1649 | /* Like TPREL16_HIGHEST, but adjust for low 16 bits. */ | |
| 1650 | HOWTO (R_PPC64_TPREL16_HIGHESTA, | |
| 1651 | 48, /* rightshift */ | |
| 1652 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1653 | 16, /* bitsize */ | |
| 1654 | FALSE, /* pc_relative */ | |
| 1655 | 0, /* bitpos */ | |
| 1656 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1657 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1658 | "R_PPC64_TPREL16_HIGHESTA", /* name */ | |
| 1659 | FALSE, /* partial_inplace */ | |
| 1660 | 0, /* src_mask */ | |
| 1661 | 0xffff, /* dst_mask */ | |
| 1662 | FALSE), /* pcrel_offset */ | |
| 1663 | ||
| 1664 | /* Like TPREL16, but for insns with a DS field. */ | |
| 1665 | HOWTO (R_PPC64_TPREL16_DS, | |
| 1666 | 0, /* rightshift */ | |
| 1667 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1668 | 16, /* bitsize */ | |
| 1669 | FALSE, /* pc_relative */ | |
| 1670 | 0, /* bitpos */ | |
| 1671 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1672 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1673 | "R_PPC64_TPREL16_DS", /* name */ | |
| 1674 | FALSE, /* partial_inplace */ | |
| 1675 | 0, /* src_mask */ | |
| 1676 | 0xfffc, /* dst_mask */ | |
| 1677 | FALSE), /* pcrel_offset */ | |
| 1678 | ||
| 1679 | /* Like TPREL16_DS, but no overflow. */ | |
| 1680 | HOWTO (R_PPC64_TPREL16_LO_DS, | |
| 1681 | 0, /* rightshift */ | |
| 1682 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1683 | 16, /* bitsize */ | |
| 1684 | FALSE, /* pc_relative */ | |
| 1685 | 0, /* bitpos */ | |
| 1686 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1687 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1688 | "R_PPC64_TPREL16_LO_DS", /* name */ | |
| 1689 | FALSE, /* partial_inplace */ | |
| 1690 | 0, /* src_mask */ | |
| 1691 | 0xfffc, /* dst_mask */ | |
| 1692 | FALSE), /* pcrel_offset */ | |
| 1693 | ||
| 1694 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, | |
| 1695 | with values (sym+add)@dtpmod and (sym+add)@dtprel, and computes the offset | |
| 1696 | to the first entry relative to the TOC base (r2). */ | |
| 1697 | HOWTO (R_PPC64_GOT_TLSGD16, | |
| 1698 | 0, /* rightshift */ | |
| 1699 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1700 | 16, /* bitsize */ | |
| 1701 | FALSE, /* pc_relative */ | |
| 1702 | 0, /* bitpos */ | |
| 1703 | complain_overflow_signed, /* complain_on_overflow */ | |
| 1704 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1705 | "R_PPC64_GOT_TLSGD16", /* name */ | |
| b34976b6 | 1706 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1707 | 0, /* src_mask */ |
| 1708 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1709 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1710 | |
| 411e1bfb AM |
1711 | /* Like GOT_TLSGD16, but no overflow. */ |
| 1712 | HOWTO (R_PPC64_GOT_TLSGD16_LO, | |
| 5bd4f169 AM |
1713 | 0, /* rightshift */ |
| 1714 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1715 | 16, /* bitsize */ | |
| b34976b6 | 1716 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1717 | 0, /* bitpos */ |
| 1718 | complain_overflow_dont, /* complain_on_overflow */ | |
| 805fc799 | 1719 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1720 | "R_PPC64_GOT_TLSGD16_LO", /* name */ |
| b34976b6 | 1721 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1722 | 0, /* src_mask */ |
| 1723 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1724 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1725 | |
| 411e1bfb AM |
1726 | /* Like GOT_TLSGD16_LO, but next higher group of 16 bits. */ |
| 1727 | HOWTO (R_PPC64_GOT_TLSGD16_HI, | |
| 5bd4f169 AM |
1728 | 16, /* rightshift */ |
| 1729 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1730 | 16, /* bitsize */ | |
| b34976b6 | 1731 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1732 | 0, /* bitpos */ |
| f9c6b907 | 1733 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1734 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1735 | "R_PPC64_GOT_TLSGD16_HI", /* name */ |
| b34976b6 | 1736 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1737 | 0, /* src_mask */ |
| 1738 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1739 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1740 | |
| 411e1bfb AM |
1741 | /* Like GOT_TLSGD16_HI, but adjust for low 16 bits. */ |
| 1742 | HOWTO (R_PPC64_GOT_TLSGD16_HA, | |
| 5bd4f169 AM |
1743 | 16, /* rightshift */ |
| 1744 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1745 | 16, /* bitsize */ | |
| b34976b6 | 1746 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1747 | 0, /* bitpos */ |
| f9c6b907 | 1748 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1749 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1750 | "R_PPC64_GOT_TLSGD16_HA", /* name */ |
| b34976b6 | 1751 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
1752 | 0, /* src_mask */ |
| 1753 | 0xffff, /* dst_mask */ | |
| b34976b6 | 1754 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1755 | |
| 411e1bfb AM |
1756 | /* Allocates two contiguous entries in the GOT to hold a tls_index structure, |
| 1757 | with values (sym+add)@dtpmod and zero, and computes the offset to the | |
| 1758 | first entry relative to the TOC base (r2). */ | |
| 1759 | HOWTO (R_PPC64_GOT_TLSLD16, | |
| 5bd4f169 AM |
1760 | 0, /* rightshift */ |
| 1761 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1762 | 16, /* bitsize */ | |
| b34976b6 | 1763 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1764 | 0, /* bitpos */ |
| 411e1bfb AM |
1765 | complain_overflow_signed, /* complain_on_overflow */ |
| 1766 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1767 | "R_PPC64_GOT_TLSLD16", /* name */ | |
| b34976b6 | 1768 | FALSE, /* partial_inplace */ |
| d006db6c | 1769 | 0, /* src_mask */ |
| 411e1bfb | 1770 | 0xffff, /* dst_mask */ |
| b34976b6 | 1771 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1772 | |
| 411e1bfb AM |
1773 | /* Like GOT_TLSLD16, but no overflow. */ |
| 1774 | HOWTO (R_PPC64_GOT_TLSLD16_LO, | |
| 5bd4f169 AM |
1775 | 0, /* rightshift */ |
| 1776 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1777 | 16, /* bitsize */ | |
| b34976b6 | 1778 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1779 | 0, /* bitpos */ |
| 411e1bfb AM |
1780 | complain_overflow_dont, /* complain_on_overflow */ |
| 1781 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1782 | "R_PPC64_GOT_TLSLD16_LO", /* name */ | |
| b34976b6 | 1783 | FALSE, /* partial_inplace */ |
| d006db6c | 1784 | 0, /* src_mask */ |
| 411e1bfb | 1785 | 0xffff, /* dst_mask */ |
| b34976b6 | 1786 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1787 | |
| 411e1bfb AM |
1788 | /* Like GOT_TLSLD16_LO, but next higher group of 16 bits. */ |
| 1789 | HOWTO (R_PPC64_GOT_TLSLD16_HI, | |
| 1790 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1791 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1792 | 16, /* bitsize */ | |
| b34976b6 | 1793 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1794 | 0, /* bitpos */ |
| f9c6b907 | 1795 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1796 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1797 | "R_PPC64_GOT_TLSLD16_HI", /* name */ |
| b34976b6 | 1798 | FALSE, /* partial_inplace */ |
| d006db6c | 1799 | 0, /* src_mask */ |
| 411e1bfb | 1800 | 0xffff, /* dst_mask */ |
| b34976b6 | 1801 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1802 | |
| 411e1bfb AM |
1803 | /* Like GOT_TLSLD16_HI, but adjust for low 16 bits. */ |
| 1804 | HOWTO (R_PPC64_GOT_TLSLD16_HA, | |
| 1805 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1806 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1807 | 16, /* bitsize */ | |
| b34976b6 | 1808 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1809 | 0, /* bitpos */ |
| f9c6b907 | 1810 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1811 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1812 | "R_PPC64_GOT_TLSLD16_HA", /* name */ |
| b34976b6 | 1813 | FALSE, /* partial_inplace */ |
| d006db6c | 1814 | 0, /* src_mask */ |
| 411e1bfb | 1815 | 0xffff, /* dst_mask */ |
| b34976b6 | 1816 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1817 | |
| 411e1bfb AM |
1818 | /* Allocates an entry in the GOT with value (sym+add)@dtprel, and computes |
| 1819 | the offset to the entry relative to the TOC base (r2). */ | |
| 1820 | HOWTO (R_PPC64_GOT_DTPREL16_DS, | |
| 5bd4f169 AM |
1821 | 0, /* rightshift */ |
| 1822 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1823 | 16, /* bitsize */ | |
| b34976b6 | 1824 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1825 | 0, /* bitpos */ |
| 411e1bfb | 1826 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1827 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1828 | "R_PPC64_GOT_DTPREL16_DS", /* name */ |
| b34976b6 | 1829 | FALSE, /* partial_inplace */ |
| d006db6c | 1830 | 0, /* src_mask */ |
| 5bd4f169 | 1831 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1832 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1833 | |
| 411e1bfb AM |
1834 | /* Like GOT_DTPREL16_DS, but no overflow. */ |
| 1835 | HOWTO (R_PPC64_GOT_DTPREL16_LO_DS, | |
| 5bd4f169 | 1836 | 0, /* rightshift */ |
| c061c2d8 AM |
1837 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1838 | 16, /* bitsize */ | |
| b34976b6 | 1839 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1840 | 0, /* bitpos */ |
| 411e1bfb AM |
1841 | complain_overflow_dont, /* complain_on_overflow */ |
| 1842 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1843 | "R_PPC64_GOT_DTPREL16_LO_DS", /* name */ | |
| b34976b6 | 1844 | FALSE, /* partial_inplace */ |
| d006db6c | 1845 | 0, /* src_mask */ |
| c061c2d8 | 1846 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1847 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1848 | |
| 411e1bfb AM |
1849 | /* Like GOT_DTPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1850 | HOWTO (R_PPC64_GOT_DTPREL16_HI, | |
| 1851 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1852 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1853 | 16, /* bitsize */ | |
| b34976b6 | 1854 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1855 | 0, /* bitpos */ |
| f9c6b907 | 1856 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1857 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1858 | "R_PPC64_GOT_DTPREL16_HI", /* name */ | |
| b34976b6 | 1859 | FALSE, /* partial_inplace */ |
| d006db6c | 1860 | 0, /* src_mask */ |
| 411e1bfb | 1861 | 0xffff, /* dst_mask */ |
| b34976b6 | 1862 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1863 | |
| 411e1bfb AM |
1864 | /* Like GOT_DTPREL16_HI, but adjust for low 16 bits. */ |
| 1865 | HOWTO (R_PPC64_GOT_DTPREL16_HA, | |
| 1866 | 16, /* rightshift */ | |
| 1867 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1868 | 16, /* bitsize */ | |
| 1869 | FALSE, /* pc_relative */ | |
| 1870 | 0, /* bitpos */ | |
| f9c6b907 | 1871 | complain_overflow_signed, /* complain_on_overflow */ |
| 411e1bfb AM |
1872 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1873 | "R_PPC64_GOT_DTPREL16_HA", /* name */ | |
| 1874 | FALSE, /* partial_inplace */ | |
| 1875 | 0, /* src_mask */ | |
| 1876 | 0xffff, /* dst_mask */ | |
| 1877 | FALSE), /* pcrel_offset */ | |
| 1878 | ||
| 1879 | /* Allocates an entry in the GOT with value (sym+add)@tprel, and computes the | |
| 1880 | offset to the entry relative to the TOC base (r2). */ | |
| 1881 | HOWTO (R_PPC64_GOT_TPREL16_DS, | |
| 5bd4f169 AM |
1882 | 0, /* rightshift */ |
| 1883 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1884 | 16, /* bitsize */ | |
| b34976b6 | 1885 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1886 | 0, /* bitpos */ |
| 1887 | complain_overflow_signed, /* complain_on_overflow */ | |
| 411e1bfb AM |
1888 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1889 | "R_PPC64_GOT_TPREL16_DS", /* name */ | |
| b34976b6 | 1890 | FALSE, /* partial_inplace */ |
| d006db6c | 1891 | 0, /* src_mask */ |
| ad8e1ba5 | 1892 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1893 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1894 | |
| 411e1bfb AM |
1895 | /* Like GOT_TPREL16_DS, but no overflow. */ |
| 1896 | HOWTO (R_PPC64_GOT_TPREL16_LO_DS, | |
| 5bd4f169 AM |
1897 | 0, /* rightshift */ |
| 1898 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1899 | 16, /* bitsize */ | |
| b34976b6 | 1900 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
1901 | 0, /* bitpos */ |
| 1902 | complain_overflow_dont, /* complain_on_overflow */ | |
| 411e1bfb AM |
1903 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 1904 | "R_PPC64_GOT_TPREL16_LO_DS", /* name */ | |
| b34976b6 | 1905 | FALSE, /* partial_inplace */ |
| d006db6c | 1906 | 0, /* src_mask */ |
| ad8e1ba5 | 1907 | 0xfffc, /* dst_mask */ |
| b34976b6 | 1908 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1909 | |
| 411e1bfb AM |
1910 | /* Like GOT_TPREL16_LO_DS, but next higher group of 16 bits. */ |
| 1911 | HOWTO (R_PPC64_GOT_TPREL16_HI, | |
| 1912 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1913 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1914 | 16, /* bitsize */ | |
| b34976b6 | 1915 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1916 | 0, /* bitpos */ |
| f9c6b907 | 1917 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1918 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1919 | "R_PPC64_GOT_TPREL16_HI", /* name */ |
| b34976b6 | 1920 | FALSE, /* partial_inplace */ |
| d006db6c | 1921 | 0, /* src_mask */ |
| 411e1bfb | 1922 | 0xffff, /* dst_mask */ |
| b34976b6 | 1923 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1924 | |
| 411e1bfb AM |
1925 | /* Like GOT_TPREL16_HI, but adjust for low 16 bits. */ |
| 1926 | HOWTO (R_PPC64_GOT_TPREL16_HA, | |
| 1927 | 16, /* rightshift */ | |
| 5bd4f169 AM |
1928 | 1, /* size (0 = byte, 1 = short, 2 = long) */ |
| 1929 | 16, /* bitsize */ | |
| b34976b6 | 1930 | FALSE, /* pc_relative */ |
| 5bd4f169 | 1931 | 0, /* bitpos */ |
| f9c6b907 | 1932 | complain_overflow_signed, /* complain_on_overflow */ |
| 805fc799 | 1933 | ppc64_elf_unhandled_reloc, /* special_function */ |
| 411e1bfb | 1934 | "R_PPC64_GOT_TPREL16_HA", /* name */ |
| b34976b6 | 1935 | FALSE, /* partial_inplace */ |
| d006db6c | 1936 | 0, /* src_mask */ |
| 411e1bfb | 1937 | 0xffff, /* dst_mask */ |
| b34976b6 | 1938 | FALSE), /* pcrel_offset */ |
| 5bd4f169 | 1939 | |
| 25f23106 AM |
1940 | HOWTO (R_PPC64_JMP_IREL, /* type */ |
| 1941 | 0, /* rightshift */ | |
| 1942 | 0, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1943 | 0, /* bitsize */ | |
| 1944 | FALSE, /* pc_relative */ | |
| 1945 | 0, /* bitpos */ | |
| 1946 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1947 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 1948 | "R_PPC64_JMP_IREL", /* name */ | |
| 1949 | FALSE, /* partial_inplace */ | |
| 1950 | 0, /* src_mask */ | |
| 1951 | 0, /* dst_mask */ | |
| 1952 | FALSE), /* pcrel_offset */ | |
| 1953 | ||
| e054468f AM |
1954 | HOWTO (R_PPC64_IRELATIVE, /* type */ |
| 1955 | 0, /* rightshift */ | |
| 1956 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 1957 | 64, /* bitsize */ | |
| 1958 | FALSE, /* pc_relative */ | |
| 1959 | 0, /* bitpos */ | |
| 1960 | complain_overflow_dont, /* complain_on_overflow */ | |
| 1961 | bfd_elf_generic_reloc, /* special_function */ | |
| 1962 | "R_PPC64_IRELATIVE", /* name */ | |
| 1963 | FALSE, /* partial_inplace */ | |
| 1964 | 0, /* src_mask */ | |
| 1965 | ONES (64), /* dst_mask */ | |
| 1966 | FALSE), /* pcrel_offset */ | |
| 1967 | ||
| 25f23106 AM |
1968 | /* A 16 bit relative relocation. */ |
| 1969 | HOWTO (R_PPC64_REL16, /* type */ | |
| 1970 | 0, /* rightshift */ | |
| 1971 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1972 | 16, /* bitsize */ | |
| 1973 | TRUE, /* pc_relative */ | |
| 1974 | 0, /* bitpos */ | |
| b80eed39 | 1975 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
1976 | bfd_elf_generic_reloc, /* special_function */ |
| 1977 | "R_PPC64_REL16", /* name */ | |
| 1978 | FALSE, /* partial_inplace */ | |
| 1979 | 0, /* src_mask */ | |
| 1980 | 0xffff, /* dst_mask */ | |
| 1981 | TRUE), /* pcrel_offset */ | |
| 1982 | ||
| 1983 | /* A 16 bit relative relocation without overflow. */ | |
| 1984 | HOWTO (R_PPC64_REL16_LO, /* type */ | |
| 1985 | 0, /* rightshift */ | |
| 1986 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 1987 | 16, /* bitsize */ | |
| 1988 | TRUE, /* pc_relative */ | |
| 1989 | 0, /* bitpos */ | |
| 1990 | complain_overflow_dont,/* complain_on_overflow */ | |
| 1991 | bfd_elf_generic_reloc, /* special_function */ | |
| 1992 | "R_PPC64_REL16_LO", /* name */ | |
| 1993 | FALSE, /* partial_inplace */ | |
| 1994 | 0, /* src_mask */ | |
| 1995 | 0xffff, /* dst_mask */ | |
| 1996 | TRUE), /* pcrel_offset */ | |
| 1997 | ||
| 1998 | /* The high order 16 bits of a relative address. */ | |
| 1999 | HOWTO (R_PPC64_REL16_HI, /* type */ | |
| 2000 | 16, /* rightshift */ | |
| 2001 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2002 | 16, /* bitsize */ | |
| 2003 | TRUE, /* pc_relative */ | |
| 2004 | 0, /* bitpos */ | |
| f9c6b907 | 2005 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2006 | bfd_elf_generic_reloc, /* special_function */ |
| 2007 | "R_PPC64_REL16_HI", /* name */ | |
| 2008 | FALSE, /* partial_inplace */ | |
| 2009 | 0, /* src_mask */ | |
| 2010 | 0xffff, /* dst_mask */ | |
| 2011 | TRUE), /* pcrel_offset */ | |
| 2012 | ||
| 2013 | /* The high order 16 bits of a relative address, plus 1 if the contents of | |
| 2014 | the low 16 bits, treated as a signed number, is negative. */ | |
| 2015 | HOWTO (R_PPC64_REL16_HA, /* type */ | |
| 2016 | 16, /* rightshift */ | |
| 2017 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2018 | 16, /* bitsize */ | |
| 2019 | TRUE, /* pc_relative */ | |
| 2020 | 0, /* bitpos */ | |
| f9c6b907 | 2021 | complain_overflow_signed, /* complain_on_overflow */ |
| 25f23106 AM |
2022 | ppc64_elf_ha_reloc, /* special_function */ |
| 2023 | "R_PPC64_REL16_HA", /* name */ | |
| 2024 | FALSE, /* partial_inplace */ | |
| 2025 | 0, /* src_mask */ | |
| 2026 | 0xffff, /* dst_mask */ | |
| 2027 | TRUE), /* pcrel_offset */ | |
| 2028 | ||
| a680de9a PB |
2029 | /* Like R_PPC64_REL16_HA but for split field in addpcis. */ |
| 2030 | HOWTO (R_PPC64_REL16DX_HA, /* type */ | |
| 2031 | 16, /* rightshift */ | |
| 2032 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2033 | 16, /* bitsize */ | |
| 2034 | TRUE, /* pc_relative */ | |
| 2035 | 0, /* bitpos */ | |
| 2036 | complain_overflow_signed, /* complain_on_overflow */ | |
| 2037 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2038 | "R_PPC64_REL16DX_HA", /* name */ | |
| 2039 | FALSE, /* partial_inplace */ | |
| 2040 | 0, /* src_mask */ | |
| 2041 | 0x1fffc1, /* dst_mask */ | |
| 2042 | TRUE), /* pcrel_offset */ | |
| 2043 | ||
| f9c6b907 AM |
2044 | /* Like R_PPC64_ADDR16_HI, but no overflow. */ |
| 2045 | HOWTO (R_PPC64_ADDR16_HIGH, /* type */ | |
| 2046 | 16, /* rightshift */ | |
| 2047 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2048 | 16, /* bitsize */ | |
| 2049 | FALSE, /* pc_relative */ | |
| 2050 | 0, /* bitpos */ | |
| 2051 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2052 | bfd_elf_generic_reloc, /* special_function */ | |
| 2053 | "R_PPC64_ADDR16_HIGH", /* name */ | |
| 2054 | FALSE, /* partial_inplace */ | |
| 2055 | 0, /* src_mask */ | |
| 2056 | 0xffff, /* dst_mask */ | |
| 2057 | FALSE), /* pcrel_offset */ | |
| 2058 | ||
| 2059 | /* Like R_PPC64_ADDR16_HA, but no overflow. */ | |
| 2060 | HOWTO (R_PPC64_ADDR16_HIGHA, /* type */ | |
| 2061 | 16, /* rightshift */ | |
| 2062 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2063 | 16, /* bitsize */ | |
| 2064 | FALSE, /* pc_relative */ | |
| 2065 | 0, /* bitpos */ | |
| 2066 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2067 | ppc64_elf_ha_reloc, /* special_function */ | |
| 2068 | "R_PPC64_ADDR16_HIGHA", /* name */ | |
| 2069 | FALSE, /* partial_inplace */ | |
| 2070 | 0, /* src_mask */ | |
| 2071 | 0xffff, /* dst_mask */ | |
| 2072 | FALSE), /* pcrel_offset */ | |
| 2073 | ||
| 2074 | /* Like R_PPC64_DTPREL16_HI, but no overflow. */ | |
| 2075 | HOWTO (R_PPC64_DTPREL16_HIGH, | |
| 2076 | 16, /* rightshift */ | |
| 2077 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2078 | 16, /* bitsize */ | |
| 2079 | FALSE, /* pc_relative */ | |
| 2080 | 0, /* bitpos */ | |
| 2081 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2082 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2083 | "R_PPC64_DTPREL16_HIGH", /* name */ | |
| 2084 | FALSE, /* partial_inplace */ | |
| 2085 | 0, /* src_mask */ | |
| 2086 | 0xffff, /* dst_mask */ | |
| 2087 | FALSE), /* pcrel_offset */ | |
| 2088 | ||
| 2089 | /* Like R_PPC64_DTPREL16_HA, but no overflow. */ | |
| 2090 | HOWTO (R_PPC64_DTPREL16_HIGHA, | |
| 2091 | 16, /* rightshift */ | |
| 2092 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2093 | 16, /* bitsize */ | |
| 2094 | FALSE, /* pc_relative */ | |
| 2095 | 0, /* bitpos */ | |
| 2096 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2097 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2098 | "R_PPC64_DTPREL16_HIGHA", /* name */ | |
| 2099 | FALSE, /* partial_inplace */ | |
| 2100 | 0, /* src_mask */ | |
| 2101 | 0xffff, /* dst_mask */ | |
| 2102 | FALSE), /* pcrel_offset */ | |
| 2103 | ||
| 2104 | /* Like R_PPC64_TPREL16_HI, but no overflow. */ | |
| 2105 | HOWTO (R_PPC64_TPREL16_HIGH, | |
| 2106 | 16, /* rightshift */ | |
| 2107 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2108 | 16, /* bitsize */ | |
| 2109 | FALSE, /* pc_relative */ | |
| 2110 | 0, /* bitpos */ | |
| 2111 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2112 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2113 | "R_PPC64_TPREL16_HIGH", /* name */ | |
| 2114 | FALSE, /* partial_inplace */ | |
| 2115 | 0, /* src_mask */ | |
| 2116 | 0xffff, /* dst_mask */ | |
| 2117 | FALSE), /* pcrel_offset */ | |
| 2118 | ||
| 2119 | /* Like R_PPC64_TPREL16_HA, but no overflow. */ | |
| 2120 | HOWTO (R_PPC64_TPREL16_HIGHA, | |
| 2121 | 16, /* rightshift */ | |
| 2122 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2123 | 16, /* bitsize */ | |
| 2124 | FALSE, /* pc_relative */ | |
| 2125 | 0, /* bitpos */ | |
| 2126 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2127 | ppc64_elf_unhandled_reloc, /* special_function */ | |
| 2128 | "R_PPC64_TPREL16_HIGHA", /* name */ | |
| 2129 | FALSE, /* partial_inplace */ | |
| 2130 | 0, /* src_mask */ | |
| 2131 | 0xffff, /* dst_mask */ | |
| 2132 | FALSE), /* pcrel_offset */ | |
| 2133 | ||
| 006589cf AM |
2134 | /* Marker reloc on ELFv2 large-model function entry. */ |
| 2135 | HOWTO (R_PPC64_ENTRY, | |
| 2136 | 0, /* rightshift */ | |
| 2137 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2138 | 32, /* bitsize */ | |
| 2139 | FALSE, /* pc_relative */ | |
| 2140 | 0, /* bitpos */ | |
| 2141 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2142 | bfd_elf_generic_reloc, /* special_function */ | |
| 2143 | "R_PPC64_ENTRY", /* name */ | |
| 2144 | FALSE, /* partial_inplace */ | |
| 2145 | 0, /* src_mask */ | |
| 2146 | 0, /* dst_mask */ | |
| 2147 | FALSE), /* pcrel_offset */ | |
| 2148 | ||
| 45965137 AM |
2149 | /* Like ADDR64, but use local entry point of function. */ |
| 2150 | HOWTO (R_PPC64_ADDR64_LOCAL, /* type */ | |
| 2151 | 0, /* rightshift */ | |
| 2152 | 4, /* size (0=byte, 1=short, 2=long, 4=64 bits) */ | |
| 2153 | 64, /* bitsize */ | |
| 2154 | FALSE, /* pc_relative */ | |
| 2155 | 0, /* bitpos */ | |
| 2156 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2157 | bfd_elf_generic_reloc, /* special_function */ | |
| 2158 | "R_PPC64_ADDR64_LOCAL", /* name */ | |
| 2159 | FALSE, /* partial_inplace */ | |
| 2160 | 0, /* src_mask */ | |
| 2161 | ONES (64), /* dst_mask */ | |
| 2162 | FALSE), /* pcrel_offset */ | |
| 2163 | ||
| 5bd4f169 AM |
2164 | /* GNU extension to record C++ vtable hierarchy. */ |
| 2165 | HOWTO (R_PPC64_GNU_VTINHERIT, /* type */ | |
| 2166 | 0, /* rightshift */ | |
| 2167 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2168 | 0, /* bitsize */ | |
| b34976b6 | 2169 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2170 | 0, /* bitpos */ |
| 2171 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2172 | NULL, /* special_function */ | |
| 2173 | "R_PPC64_GNU_VTINHERIT", /* name */ | |
| b34976b6 | 2174 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2175 | 0, /* src_mask */ |
| 2176 | 0, /* dst_mask */ | |
| b34976b6 | 2177 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2178 | |
| 2179 | /* GNU extension to record C++ vtable member usage. */ | |
| 2180 | HOWTO (R_PPC64_GNU_VTENTRY, /* type */ | |
| 2181 | 0, /* rightshift */ | |
| 2182 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
| 2183 | 0, /* bitsize */ | |
| b34976b6 | 2184 | FALSE, /* pc_relative */ |
| 5bd4f169 AM |
2185 | 0, /* bitpos */ |
| 2186 | complain_overflow_dont, /* complain_on_overflow */ | |
| 2187 | NULL, /* special_function */ | |
| 2188 | "R_PPC64_GNU_VTENTRY", /* name */ | |
| b34976b6 | 2189 | FALSE, /* partial_inplace */ |
| 5bd4f169 AM |
2190 | 0, /* src_mask */ |
| 2191 | 0, /* dst_mask */ | |
| b34976b6 | 2192 | FALSE), /* pcrel_offset */ |
| 5bd4f169 AM |
2193 | }; |
| 2194 | ||
| 2195 | \f | |
| 2196 | /* Initialize the ppc64_elf_howto_table, so that linear accesses can | |
| 2197 | be done. */ | |
| 2198 | ||
| 2199 | static void | |
| 4ce794b7 | 2200 | ppc_howto_init (void) |
| 5bd4f169 AM |
2201 | { |
| 2202 | unsigned int i, type; | |
| 2203 | ||
| a4b6fadd | 2204 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 5bd4f169 AM |
2205 | { |
| 2206 | type = ppc64_elf_howto_raw[i].type; | |
| a4b6fadd | 2207 | BFD_ASSERT (type < ARRAY_SIZE (ppc64_elf_howto_table)); |
| 5bd4f169 AM |
2208 | ppc64_elf_howto_table[type] = &ppc64_elf_howto_raw[i]; |
| 2209 | } | |
| 2210 | } | |
| 2211 | ||
| 2212 | static reloc_howto_type * | |
| 4ce794b7 AM |
2213 | ppc64_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED, |
| 2214 | bfd_reloc_code_real_type code) | |
| 5bd4f169 | 2215 | { |
| 411e1bfb | 2216 | enum elf_ppc64_reloc_type r = R_PPC64_NONE; |
| 5bd4f169 AM |
2217 | |
| 2218 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 2219 | /* Initialize howto table if needed. */ | |
| 2220 | ppc_howto_init (); | |
| 2221 | ||
| 4ce794b7 | 2222 | switch (code) |
| 5bd4f169 AM |
2223 | { |
| 2224 | default: | |
| 4ce794b7 | 2225 | return NULL; |
| 5bd4f169 | 2226 | |
| 411e1bfb AM |
2227 | case BFD_RELOC_NONE: r = R_PPC64_NONE; |
| 2228 | break; | |
| 2229 | case BFD_RELOC_32: r = R_PPC64_ADDR32; | |
| 2230 | break; | |
| 2231 | case BFD_RELOC_PPC_BA26: r = R_PPC64_ADDR24; | |
| 2232 | break; | |
| 2233 | case BFD_RELOC_16: r = R_PPC64_ADDR16; | |
| 2234 | break; | |
| 2235 | case BFD_RELOC_LO16: r = R_PPC64_ADDR16_LO; | |
| 2236 | break; | |
| 2237 | case BFD_RELOC_HI16: r = R_PPC64_ADDR16_HI; | |
| 2238 | break; | |
| f9c6b907 AM |
2239 | case BFD_RELOC_PPC64_ADDR16_HIGH: r = R_PPC64_ADDR16_HIGH; |
| 2240 | break; | |
| 411e1bfb | 2241 | case BFD_RELOC_HI16_S: r = R_PPC64_ADDR16_HA; |
| 5bd4f169 | 2242 | break; |
| f9c6b907 AM |
2243 | case BFD_RELOC_PPC64_ADDR16_HIGHA: r = R_PPC64_ADDR16_HIGHA; |
| 2244 | break; | |
| 411e1bfb | 2245 | case BFD_RELOC_PPC_BA16: r = R_PPC64_ADDR14; |
| 5bd4f169 | 2246 | break; |
| 411e1bfb | 2247 | case BFD_RELOC_PPC_BA16_BRTAKEN: r = R_PPC64_ADDR14_BRTAKEN; |
| 5bd4f169 | 2248 | break; |
| 411e1bfb | 2249 | case BFD_RELOC_PPC_BA16_BRNTAKEN: r = R_PPC64_ADDR14_BRNTAKEN; |
| 5bd4f169 | 2250 | break; |
| 411e1bfb | 2251 | case BFD_RELOC_PPC_B26: r = R_PPC64_REL24; |
| 5bd4f169 | 2252 | break; |
| 411e1bfb | 2253 | case BFD_RELOC_PPC_B16: r = R_PPC64_REL14; |
| 5bd4f169 | 2254 | break; |
| 411e1bfb | 2255 | case BFD_RELOC_PPC_B16_BRTAKEN: r = R_PPC64_REL14_BRTAKEN; |
| 5bd4f169 | 2256 | break; |
| 411e1bfb | 2257 | case BFD_RELOC_PPC_B16_BRNTAKEN: r = R_PPC64_REL14_BRNTAKEN; |
| 5bd4f169 | 2258 | break; |
| 411e1bfb | 2259 | case BFD_RELOC_16_GOTOFF: r = R_PPC64_GOT16; |
| 5bd4f169 | 2260 | break; |
| 411e1bfb | 2261 | case BFD_RELOC_LO16_GOTOFF: r = R_PPC64_GOT16_LO; |
| 5bd4f169 | 2262 | break; |
| 411e1bfb | 2263 | case BFD_RELOC_HI16_GOTOFF: r = R_PPC64_GOT16_HI; |
| 5bd4f169 | 2264 | break; |
| 411e1bfb | 2265 | case BFD_RELOC_HI16_S_GOTOFF: r = R_PPC64_GOT16_HA; |
| 5bd4f169 | 2266 | break; |
| 411e1bfb | 2267 | case BFD_RELOC_PPC_COPY: r = R_PPC64_COPY; |
| 5bd4f169 | 2268 | break; |
| 411e1bfb | 2269 | case BFD_RELOC_PPC_GLOB_DAT: r = R_PPC64_GLOB_DAT; |
| 5bd4f169 | 2270 | break; |
| 411e1bfb | 2271 | case BFD_RELOC_32_PCREL: r = R_PPC64_REL32; |
| 5bd4f169 | 2272 | break; |
| 411e1bfb | 2273 | case BFD_RELOC_32_PLTOFF: r = R_PPC64_PLT32; |
| 5bd4f169 | 2274 | break; |
| 411e1bfb | 2275 | case BFD_RELOC_32_PLT_PCREL: r = R_PPC64_PLTREL32; |
| 5bd4f169 | 2276 | break; |
| 411e1bfb | 2277 | case BFD_RELOC_LO16_PLTOFF: r = R_PPC64_PLT16_LO; |
| 5bd4f169 | 2278 | break; |
| 411e1bfb | 2279 | case BFD_RELOC_HI16_PLTOFF: r = R_PPC64_PLT16_HI; |
| 5bd4f169 | 2280 | break; |
| 411e1bfb | 2281 | case BFD_RELOC_HI16_S_PLTOFF: r = R_PPC64_PLT16_HA; |
| 5bd4f169 | 2282 | break; |
| 411e1bfb | 2283 | case BFD_RELOC_16_BASEREL: r = R_PPC64_SECTOFF; |
| 5bd4f169 | 2284 | break; |
| 411e1bfb | 2285 | case BFD_RELOC_LO16_BASEREL: r = R_PPC64_SECTOFF_LO; |
| 5bd4f169 | 2286 | break; |
| 411e1bfb | 2287 | case BFD_RELOC_HI16_BASEREL: r = R_PPC64_SECTOFF_HI; |
| 5bd4f169 | 2288 | break; |
| 411e1bfb | 2289 | case BFD_RELOC_HI16_S_BASEREL: r = R_PPC64_SECTOFF_HA; |
| 5bd4f169 | 2290 | break; |
| 411e1bfb | 2291 | case BFD_RELOC_CTOR: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2292 | break; |
| 411e1bfb | 2293 | case BFD_RELOC_64: r = R_PPC64_ADDR64; |
| 5bd4f169 | 2294 | break; |
| 411e1bfb | 2295 | case BFD_RELOC_PPC64_HIGHER: r = R_PPC64_ADDR16_HIGHER; |
| 5bd4f169 | 2296 | break; |
| 411e1bfb | 2297 | case BFD_RELOC_PPC64_HIGHER_S: r = R_PPC64_ADDR16_HIGHERA; |
| 5bd4f169 | 2298 | break; |
| 411e1bfb | 2299 | case BFD_RELOC_PPC64_HIGHEST: r = R_PPC64_ADDR16_HIGHEST; |
| 5bd4f169 | 2300 | break; |
| 411e1bfb | 2301 | case BFD_RELOC_PPC64_HIGHEST_S: r = R_PPC64_ADDR16_HIGHESTA; |
| 5bd4f169 | 2302 | break; |
| 411e1bfb | 2303 | case BFD_RELOC_64_PCREL: r = R_PPC64_REL64; |
| 5bd4f169 | 2304 | break; |
| 411e1bfb | 2305 | case BFD_RELOC_64_PLTOFF: r = R_PPC64_PLT64; |
| 5bd4f169 | 2306 | break; |
| 411e1bfb | 2307 | case BFD_RELOC_64_PLT_PCREL: r = R_PPC64_PLTREL64; |
| 5bd4f169 | 2308 | break; |
| 411e1bfb | 2309 | case BFD_RELOC_PPC_TOC16: r = R_PPC64_TOC16; |
| 5bd4f169 | 2310 | break; |
| 411e1bfb | 2311 | case BFD_RELOC_PPC64_TOC16_LO: r = R_PPC64_TOC16_LO; |
| 5bd4f169 | 2312 | break; |
| 411e1bfb | 2313 | case BFD_RELOC_PPC64_TOC16_HI: r = R_PPC64_TOC16_HI; |
| 5bd4f169 | 2314 | break; |
| 411e1bfb | 2315 | case BFD_RELOC_PPC64_TOC16_HA: r = R_PPC64_TOC16_HA; |
| 5bd4f169 | 2316 | break; |
| 411e1bfb | 2317 | case BFD_RELOC_PPC64_TOC: r = R_PPC64_TOC; |
| 5bd4f169 | 2318 | break; |
| 411e1bfb | 2319 | case BFD_RELOC_PPC64_PLTGOT16: r = R_PPC64_PLTGOT16; |
| 5bd4f169 | 2320 | break; |
| 411e1bfb | 2321 | case BFD_RELOC_PPC64_PLTGOT16_LO: r = R_PPC64_PLTGOT16_LO; |
| 5bd4f169 | 2322 | break; |
| 411e1bfb | 2323 | case BFD_RELOC_PPC64_PLTGOT16_HI: r = R_PPC64_PLTGOT16_HI; |
| 5bd4f169 | 2324 | break; |
| 411e1bfb | 2325 | case BFD_RELOC_PPC64_PLTGOT16_HA: r = R_PPC64_PLTGOT16_HA; |
| 5bd4f169 | 2326 | break; |
| 411e1bfb | 2327 | case BFD_RELOC_PPC64_ADDR16_DS: r = R_PPC64_ADDR16_DS; |
| 5bd4f169 | 2328 | break; |
| 411e1bfb | 2329 | case BFD_RELOC_PPC64_ADDR16_LO_DS: r = R_PPC64_ADDR16_LO_DS; |
| 5bd4f169 | 2330 | break; |
| 411e1bfb | 2331 | case BFD_RELOC_PPC64_GOT16_DS: r = R_PPC64_GOT16_DS; |
| 5bd4f169 | 2332 | break; |
| 411e1bfb | 2333 | case BFD_RELOC_PPC64_GOT16_LO_DS: r = R_PPC64_GOT16_LO_DS; |
| 5bd4f169 | 2334 | break; |
| 411e1bfb | 2335 | case BFD_RELOC_PPC64_PLT16_LO_DS: r = R_PPC64_PLT16_LO_DS; |
| 5bd4f169 | 2336 | break; |
| 411e1bfb | 2337 | case BFD_RELOC_PPC64_SECTOFF_DS: r = R_PPC64_SECTOFF_DS; |
| 5bd4f169 | 2338 | break; |
| 411e1bfb | 2339 | case BFD_RELOC_PPC64_SECTOFF_LO_DS: r = R_PPC64_SECTOFF_LO_DS; |
| 5bd4f169 | 2340 | break; |
| 411e1bfb | 2341 | case BFD_RELOC_PPC64_TOC16_DS: r = R_PPC64_TOC16_DS; |
| 5bd4f169 | 2342 | break; |
| 411e1bfb | 2343 | case BFD_RELOC_PPC64_TOC16_LO_DS: r = R_PPC64_TOC16_LO_DS; |
| 5bd4f169 | 2344 | break; |
| 411e1bfb | 2345 | case BFD_RELOC_PPC64_PLTGOT16_DS: r = R_PPC64_PLTGOT16_DS; |
| 5bd4f169 | 2346 | break; |
| 411e1bfb | 2347 | case BFD_RELOC_PPC64_PLTGOT16_LO_DS: r = R_PPC64_PLTGOT16_LO_DS; |
| 5bd4f169 | 2348 | break; |
| 411e1bfb | 2349 | case BFD_RELOC_PPC_TLS: r = R_PPC64_TLS; |
| 5bd4f169 | 2350 | break; |
| 727fc41e AM |
2351 | case BFD_RELOC_PPC_TLSGD: r = R_PPC64_TLSGD; |
| 2352 | break; | |
| 2353 | case BFD_RELOC_PPC_TLSLD: r = R_PPC64_TLSLD; | |
| 2354 | break; | |
| 411e1bfb | 2355 | case BFD_RELOC_PPC_DTPMOD: r = R_PPC64_DTPMOD64; |
| 5bd4f169 | 2356 | break; |
| 411e1bfb | 2357 | case BFD_RELOC_PPC_TPREL16: r = R_PPC64_TPREL16; |
| 5bd4f169 | 2358 | break; |
| 411e1bfb | 2359 | case BFD_RELOC_PPC_TPREL16_LO: r = R_PPC64_TPREL16_LO; |
| 5bd4f169 | 2360 | break; |
| 411e1bfb | 2361 | case BFD_RELOC_PPC_TPREL16_HI: r = R_PPC64_TPREL16_HI; |
| 5bd4f169 | 2362 | break; |
| f9c6b907 AM |
2363 | case BFD_RELOC_PPC64_TPREL16_HIGH: r = R_PPC64_TPREL16_HIGH; |
| 2364 | break; | |
| 411e1bfb | 2365 | case BFD_RELOC_PPC_TPREL16_HA: r = R_PPC64_TPREL16_HA; |
| 5bd4f169 | 2366 | break; |
| f9c6b907 AM |
2367 | case BFD_RELOC_PPC64_TPREL16_HIGHA: r = R_PPC64_TPREL16_HIGHA; |
| 2368 | break; | |
| 411e1bfb | 2369 | case BFD_RELOC_PPC_TPREL: r = R_PPC64_TPREL64; |
| 5bd4f169 | 2370 | break; |
| 411e1bfb AM |
2371 | case BFD_RELOC_PPC_DTPREL16: r = R_PPC64_DTPREL16; |
| 2372 | break; | |
| 2373 | case BFD_RELOC_PPC_DTPREL16_LO: r = R_PPC64_DTPREL16_LO; | |
| 2374 | break; | |
| 2375 | case BFD_RELOC_PPC_DTPREL16_HI: r = R_PPC64_DTPREL16_HI; | |
| 2376 | break; | |
| f9c6b907 AM |
2377 | case BFD_RELOC_PPC64_DTPREL16_HIGH: r = R_PPC64_DTPREL16_HIGH; |
| 2378 | break; | |
| 411e1bfb AM |
2379 | case BFD_RELOC_PPC_DTPREL16_HA: r = R_PPC64_DTPREL16_HA; |
| 2380 | break; | |
| f9c6b907 AM |
2381 | case BFD_RELOC_PPC64_DTPREL16_HIGHA: r = R_PPC64_DTPREL16_HIGHA; |
| 2382 | break; | |
| 411e1bfb AM |
2383 | case BFD_RELOC_PPC_DTPREL: r = R_PPC64_DTPREL64; |
| 2384 | break; | |
| 2385 | case BFD_RELOC_PPC_GOT_TLSGD16: r = R_PPC64_GOT_TLSGD16; | |
| 2386 | break; | |
| 2387 | case BFD_RELOC_PPC_GOT_TLSGD16_LO: r = R_PPC64_GOT_TLSGD16_LO; | |
| 2388 | break; | |
| 2389 | case BFD_RELOC_PPC_GOT_TLSGD16_HI: r = R_PPC64_GOT_TLSGD16_HI; | |
| 2390 | break; | |
| 2391 | case BFD_RELOC_PPC_GOT_TLSGD16_HA: r = R_PPC64_GOT_TLSGD16_HA; | |
| 2392 | break; | |
| 2393 | case BFD_RELOC_PPC_GOT_TLSLD16: r = R_PPC64_GOT_TLSLD16; | |
| 2394 | break; | |
| 2395 | case BFD_RELOC_PPC_GOT_TLSLD16_LO: r = R_PPC64_GOT_TLSLD16_LO; | |
| 2396 | break; | |
| 2397 | case BFD_RELOC_PPC_GOT_TLSLD16_HI: r = R_PPC64_GOT_TLSLD16_HI; | |
| 2398 | break; | |
| 2399 | case BFD_RELOC_PPC_GOT_TLSLD16_HA: r = R_PPC64_GOT_TLSLD16_HA; | |
| 2400 | break; | |
| 2401 | case BFD_RELOC_PPC_GOT_TPREL16: r = R_PPC64_GOT_TPREL16_DS; | |
| 2402 | break; | |
| 2403 | case BFD_RELOC_PPC_GOT_TPREL16_LO: r = R_PPC64_GOT_TPREL16_LO_DS; | |
| 2404 | break; | |
| 2405 | case BFD_RELOC_PPC_GOT_TPREL16_HI: r = R_PPC64_GOT_TPREL16_HI; | |
| 2406 | break; | |
| 2407 | case BFD_RELOC_PPC_GOT_TPREL16_HA: r = R_PPC64_GOT_TPREL16_HA; | |
| 2408 | break; | |
| 2409 | case BFD_RELOC_PPC_GOT_DTPREL16: r = R_PPC64_GOT_DTPREL16_DS; | |
| 2410 | break; | |
| 2411 | case BFD_RELOC_PPC_GOT_DTPREL16_LO: r = R_PPC64_GOT_DTPREL16_LO_DS; | |
| 2412 | break; | |
| 2413 | case BFD_RELOC_PPC_GOT_DTPREL16_HI: r = R_PPC64_GOT_DTPREL16_HI; | |
| 2414 | break; | |
| 2415 | case BFD_RELOC_PPC_GOT_DTPREL16_HA: r = R_PPC64_GOT_DTPREL16_HA; | |
| 2416 | break; | |
| 2417 | case BFD_RELOC_PPC64_TPREL16_DS: r = R_PPC64_TPREL16_DS; | |
| 2418 | break; | |
| 2419 | case BFD_RELOC_PPC64_TPREL16_LO_DS: r = R_PPC64_TPREL16_LO_DS; | |
| 2420 | break; | |
| 2421 | case BFD_RELOC_PPC64_TPREL16_HIGHER: r = R_PPC64_TPREL16_HIGHER; | |
| 2422 | break; | |
| 2423 | case BFD_RELOC_PPC64_TPREL16_HIGHERA: r = R_PPC64_TPREL16_HIGHERA; | |
| 2424 | break; | |
| 2425 | case BFD_RELOC_PPC64_TPREL16_HIGHEST: r = R_PPC64_TPREL16_HIGHEST; | |
| 2426 | break; | |
| 2427 | case BFD_RELOC_PPC64_TPREL16_HIGHESTA: r = R_PPC64_TPREL16_HIGHESTA; | |
| 2428 | break; | |
| 2429 | case BFD_RELOC_PPC64_DTPREL16_DS: r = R_PPC64_DTPREL16_DS; | |
| 2430 | break; | |
| 2431 | case BFD_RELOC_PPC64_DTPREL16_LO_DS: r = R_PPC64_DTPREL16_LO_DS; | |
| 2432 | break; | |
| 2433 | case BFD_RELOC_PPC64_DTPREL16_HIGHER: r = R_PPC64_DTPREL16_HIGHER; | |
| 2434 | break; | |
| 2435 | case BFD_RELOC_PPC64_DTPREL16_HIGHERA: r = R_PPC64_DTPREL16_HIGHERA; | |
| 2436 | break; | |
| 2437 | case BFD_RELOC_PPC64_DTPREL16_HIGHEST: r = R_PPC64_DTPREL16_HIGHEST; | |
| 2438 | break; | |
| 2439 | case BFD_RELOC_PPC64_DTPREL16_HIGHESTA: r = R_PPC64_DTPREL16_HIGHESTA; | |
| 2440 | break; | |
| 25f23106 AM |
2441 | case BFD_RELOC_16_PCREL: r = R_PPC64_REL16; |
| 2442 | break; | |
| 2443 | case BFD_RELOC_LO16_PCREL: r = R_PPC64_REL16_LO; | |
| 2444 | break; | |
| 2445 | case BFD_RELOC_HI16_PCREL: r = R_PPC64_REL16_HI; | |
| 2446 | break; | |
| 2447 | case BFD_RELOC_HI16_S_PCREL: r = R_PPC64_REL16_HA; | |
| 2448 | break; | |
| a680de9a PB |
2449 | case BFD_RELOC_PPC_REL16DX_HA: r = R_PPC64_REL16DX_HA; |
| 2450 | break; | |
| 006589cf AM |
2451 | case BFD_RELOC_PPC64_ENTRY: r = R_PPC64_ENTRY; |
| 2452 | break; | |
| 45965137 AM |
2453 | case BFD_RELOC_PPC64_ADDR64_LOCAL: r = R_PPC64_ADDR64_LOCAL; |
| 2454 | break; | |
| 411e1bfb AM |
2455 | case BFD_RELOC_VTABLE_INHERIT: r = R_PPC64_GNU_VTINHERIT; |
| 2456 | break; | |
| 2457 | case BFD_RELOC_VTABLE_ENTRY: r = R_PPC64_GNU_VTENTRY; | |
| 5bd4f169 AM |
2458 | break; |
| 2459 | } | |
| 2460 | ||
| 4ce794b7 | 2461 | return ppc64_elf_howto_table[r]; |
| 5bd4f169 AM |
2462 | }; |
| 2463 | ||
| 157090f7 AM |
2464 | static reloc_howto_type * |
| 2465 | ppc64_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED, | |
| 2466 | const char *r_name) | |
| 2467 | { | |
| 2468 | unsigned int i; | |
| 2469 | ||
| a4b6fadd | 2470 | for (i = 0; i < ARRAY_SIZE (ppc64_elf_howto_raw); i++) |
| 157090f7 AM |
2471 | if (ppc64_elf_howto_raw[i].name != NULL |
| 2472 | && strcasecmp (ppc64_elf_howto_raw[i].name, r_name) == 0) | |
| 2473 | return &ppc64_elf_howto_raw[i]; | |
| 2474 | ||
| 2475 | return NULL; | |
| 2476 | } | |
| 2477 | ||
| 5bd4f169 AM |
2478 | /* Set the howto pointer for a PowerPC ELF reloc. */ |
| 2479 | ||
| 2480 | static void | |
| 4ce794b7 AM |
2481 | ppc64_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr, |
| 2482 | Elf_Internal_Rela *dst) | |
| 5bd4f169 | 2483 | { |
| 65f38f15 AM |
2484 | unsigned int type; |
| 2485 | ||
| ef60b7ff | 2486 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 2487 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
2488 | ppc_howto_init (); |
| 2489 | ||
| 65f38f15 | 2490 | type = ELF64_R_TYPE (dst->r_info); |
| a4b6fadd | 2491 | if (type >= ARRAY_SIZE (ppc64_elf_howto_table)) |
| d0fb9a8d JJ |
2492 | { |
| 2493 | (*_bfd_error_handler) (_("%B: invalid relocation type %d"), | |
| 3ec2b351 NC |
2494 | abfd, (int) type); |
| 2495 | type = R_PPC64_NONE; | |
| d0fb9a8d | 2496 | } |
| 65f38f15 | 2497 | cache_ptr->howto = ppc64_elf_howto_table[type]; |
| 5bd4f169 AM |
2498 | } |
| 2499 | ||
| 04c9666a | 2500 | /* Handle the R_PPC64_ADDR16_HA and similar relocs. */ |
| 5bd4f169 AM |
2501 | |
| 2502 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2503 | ppc64_elf_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2504 | void *data, asection *input_section, | |
| 2505 | bfd *output_bfd, char **error_message) | |
| 5bd4f169 | 2506 | { |
| a680de9a PB |
2507 | enum elf_ppc64_reloc_type r_type; |
| 2508 | long insn; | |
| 2509 | bfd_size_type octets; | |
| 2510 | bfd_vma value; | |
| 2511 | ||
| 805fc799 AM |
2512 | /* If this is a relocatable link (output_bfd test tells us), just |
| 2513 | call the generic function. Any adjustment will be done at final | |
| 2514 | link time. */ | |
| 2515 | if (output_bfd != NULL) | |
| cedb70c5 | 2516 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2517 | input_section, output_bfd, error_message); |
| 2518 | ||
| 2519 | /* Adjust the addend for sign extension of the low 16 bits. | |
| 2520 | We won't actually be using the low 16 bits, so trashing them | |
| 2521 | doesn't matter. */ | |
| 2522 | reloc_entry->addend += 0x8000; | |
| a680de9a PB |
2523 | r_type = reloc_entry->howto->type; |
| 2524 | if (r_type != R_PPC64_REL16DX_HA) | |
| 2525 | return bfd_reloc_continue; | |
| 2526 | ||
| 2527 | value = 0; | |
| 2528 | if (!bfd_is_com_section (symbol->section)) | |
| 2529 | value = symbol->value; | |
| 2530 | value += (reloc_entry->addend | |
| 2531 | + symbol->section->output_offset | |
| 2532 | + symbol->section->output_section->vma); | |
| 2533 | value -= (reloc_entry->address | |
| 2534 | + input_section->output_offset | |
| 2535 | + input_section->output_section->vma); | |
| 2536 | value = (bfd_signed_vma) value >> 16; | |
| 2537 | ||
| 2538 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2539 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2540 | insn &= ~0x1fffc1; | |
| 2541 | insn |= (value & 0xffc1) | ((value & 0x3e) << 15); | |
| 2542 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); | |
| 2543 | if (value + 0x8000 > 0xffff) | |
| 2544 | return bfd_reloc_overflow; | |
| 2545 | return bfd_reloc_ok; | |
| 805fc799 | 2546 | } |
| 5bd4f169 | 2547 | |
| 2441e016 AM |
2548 | static bfd_reloc_status_type |
| 2549 | ppc64_elf_branch_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, | |
| 2550 | void *data, asection *input_section, | |
| 2551 | bfd *output_bfd, char **error_message) | |
| 2552 | { | |
| 2553 | if (output_bfd != NULL) | |
| 2554 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, | |
| 2555 | input_section, output_bfd, error_message); | |
| 2556 | ||
| 699733f6 AM |
2557 | if (strcmp (symbol->section->name, ".opd") == 0 |
| 2558 | && (symbol->section->owner->flags & DYNAMIC) == 0) | |
| 2441e016 AM |
2559 | { |
| 2560 | bfd_vma dest = opd_entry_value (symbol->section, | |
| 2561 | symbol->value + reloc_entry->addend, | |
| aef36ac1 | 2562 | NULL, NULL, FALSE); |
| 2441e016 AM |
2563 | if (dest != (bfd_vma) -1) |
| 2564 | reloc_entry->addend = dest - (symbol->value | |
| 2565 | + symbol->section->output_section->vma | |
| 2566 | + symbol->section->output_offset); | |
| 2567 | } | |
| 810d4e75 AM |
2568 | else |
| 2569 | { | |
| 2570 | elf_symbol_type *elfsym = (elf_symbol_type *) symbol; | |
| 2571 | ||
| 2572 | if (symbol->section->owner != abfd | |
| 9f284bf9 | 2573 | && symbol->section->owner != NULL |
| 810d4e75 AM |
2574 | && abiversion (symbol->section->owner) >= 2) |
| 2575 | { | |
| 2576 | unsigned int i; | |
| 2577 | ||
| 2578 | for (i = 0; i < symbol->section->owner->symcount; ++i) | |
| 2579 | { | |
| 2580 | asymbol *symdef = symbol->section->owner->outsymbols[i]; | |
| 2581 | ||
| 2582 | if (strcmp (symdef->name, symbol->name) == 0) | |
| 2583 | { | |
| 2584 | elfsym = (elf_symbol_type *) symdef; | |
| 2585 | break; | |
| 2586 | } | |
| 2587 | } | |
| 2588 | } | |
| 2589 | reloc_entry->addend | |
| 2590 | += PPC64_LOCAL_ENTRY_OFFSET (elfsym->internal_elf_sym.st_other); | |
| 2591 | } | |
| 2441e016 AM |
2592 | return bfd_reloc_continue; |
| 2593 | } | |
| 2594 | ||
| 805fc799 | 2595 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2596 | ppc64_elf_brtaken_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2597 | void *data, asection *input_section, | |
| 2598 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2599 | { |
| 2600 | long insn; | |
| 04c9666a | 2601 | enum elf_ppc64_reloc_type r_type; |
| 805fc799 | 2602 | bfd_size_type octets; |
| 794e51c0 AM |
2603 | /* Assume 'at' branch hints. */ |
| 2604 | bfd_boolean is_isa_v2 = TRUE; | |
| 805fc799 AM |
2605 | |
| 2606 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2607 | call the generic function. Any adjustment will be done at final | |
| 2608 | link time. */ | |
| 5bd4f169 | 2609 | if (output_bfd != NULL) |
| cedb70c5 | 2610 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2611 | input_section, output_bfd, error_message); |
| 2612 | ||
| 2613 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2614 | insn = bfd_get_32 (abfd, (bfd_byte *) data + octets); | |
| 2615 | insn &= ~(0x01 << 21); | |
| 4ce794b7 | 2616 | r_type = reloc_entry->howto->type; |
| 805fc799 AM |
2617 | if (r_type == R_PPC64_ADDR14_BRTAKEN |
| 2618 | || r_type == R_PPC64_REL14_BRTAKEN) | |
| cedb70c5 | 2619 | insn |= 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 805fc799 | 2620 | |
| 794e51c0 | 2621 | if (is_isa_v2) |
| 5bd4f169 | 2622 | { |
| 805fc799 AM |
2623 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 2624 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 2625 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 2626 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 2627 | insn |= 0x02 << 21; | |
| 2628 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 2629 | insn |= 0x08 << 21; | |
| 2630 | else | |
| 2441e016 | 2631 | goto out; |
| 5bd4f169 | 2632 | } |
| 805fc799 AM |
2633 | else |
| 2634 | { | |
| 2635 | bfd_vma target = 0; | |
| 2636 | bfd_vma from; | |
| 5bd4f169 | 2637 | |
| 805fc799 AM |
2638 | if (!bfd_is_com_section (symbol->section)) |
| 2639 | target = symbol->value; | |
| 2640 | target += symbol->section->output_section->vma; | |
| 2641 | target += symbol->section->output_offset; | |
| 2642 | target += reloc_entry->addend; | |
| 5bd4f169 | 2643 | |
| 805fc799 AM |
2644 | from = (reloc_entry->address |
| 2645 | + input_section->output_offset | |
| 2646 | + input_section->output_section->vma); | |
| 5bd4f169 | 2647 | |
| 805fc799 AM |
2648 | /* Invert 'y' bit if not the default. */ |
| 2649 | if ((bfd_signed_vma) (target - from) < 0) | |
| 2650 | insn ^= 0x01 << 21; | |
| 2651 | } | |
| 4ce794b7 | 2652 | bfd_put_32 (abfd, insn, (bfd_byte *) data + octets); |
| 2441e016 AM |
2653 | out: |
| 2654 | return ppc64_elf_branch_reloc (abfd, reloc_entry, symbol, data, | |
| 2655 | input_section, output_bfd, error_message); | |
| 805fc799 | 2656 | } |
| 5bd4f169 | 2657 | |
| 805fc799 | 2658 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2659 | ppc64_elf_sectoff_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2660 | void *data, asection *input_section, | |
| 2661 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2662 | { |
| 2663 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2664 | call the generic function. Any adjustment will be done at final | |
| 2665 | link time. */ | |
| 2666 | if (output_bfd != NULL) | |
| cedb70c5 | 2667 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 | 2668 | input_section, output_bfd, error_message); |
| 5bd4f169 | 2669 | |
| 805fc799 AM |
2670 | /* Subtract the symbol section base address. */ |
| 2671 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 5bd4f169 AM |
2672 | return bfd_reloc_continue; |
| 2673 | } | |
| 2674 | ||
| 805fc799 | 2675 | static bfd_reloc_status_type |
| 4ce794b7 AM |
2676 | ppc64_elf_sectoff_ha_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2677 | void *data, asection *input_section, | |
| 2678 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2679 | { |
| 2680 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2681 | call the generic function. Any adjustment will be done at final | |
| 2682 | link time. */ | |
| 2683 | if (output_bfd != NULL) | |
| cedb70c5 | 2684 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2685 | input_section, output_bfd, error_message); |
| 2686 | ||
| 2687 | /* Subtract the symbol section base address. */ | |
| 2688 | reloc_entry->addend -= symbol->section->output_section->vma; | |
| 2689 | ||
| 2690 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2691 | reloc_entry->addend += 0x8000; | |
| 2692 | return bfd_reloc_continue; | |
| 2693 | } | |
| 2694 | ||
| 2695 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2696 | ppc64_elf_toc_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2697 | void *data, asection *input_section, | |
| 2698 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2699 | { |
| 2700 | bfd_vma TOCstart; | |
| 2701 | ||
| 2702 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2703 | call the generic function. Any adjustment will be done at final | |
| 2704 | link time. */ | |
| 2705 | if (output_bfd != NULL) | |
| cedb70c5 | 2706 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2707 | input_section, output_bfd, error_message); |
| 2708 | ||
| 2709 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2710 | if (TOCstart == 0) | |
| 1c865ab2 | 2711 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2712 | |
| 2713 | /* Subtract the TOC base address. */ | |
| 2714 | reloc_entry->addend -= TOCstart + TOC_BASE_OFF; | |
| 2715 | return bfd_reloc_continue; | |
| 2716 | } | |
| 2717 | ||
| 2718 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2719 | ppc64_elf_toc_ha_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 | ||
| 2739 | /* Adjust the addend for sign extension of the low 16 bits. */ | |
| 2740 | reloc_entry->addend += 0x8000; | |
| 2741 | return bfd_reloc_continue; | |
| 2742 | } | |
| 2743 | ||
| 2744 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2745 | ppc64_elf_toc64_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2746 | void *data, asection *input_section, | |
| 2747 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2748 | { |
| 2749 | bfd_vma TOCstart; | |
| 2750 | bfd_size_type octets; | |
| 2751 | ||
| 2752 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2753 | call the generic function. Any adjustment will be done at final | |
| 2754 | link time. */ | |
| 2755 | if (output_bfd != NULL) | |
| cedb70c5 | 2756 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2757 | input_section, output_bfd, error_message); |
| 2758 | ||
| 2759 | TOCstart = _bfd_get_gp_value (input_section->output_section->owner); | |
| 2760 | if (TOCstart == 0) | |
| 1c865ab2 | 2761 | TOCstart = ppc64_elf_set_toc (NULL, input_section->output_section->owner); |
| 805fc799 AM |
2762 | |
| 2763 | octets = reloc_entry->address * bfd_octets_per_byte (abfd); | |
| 2764 | bfd_put_64 (abfd, TOCstart + TOC_BASE_OFF, (bfd_byte *) data + octets); | |
| 2765 | return bfd_reloc_ok; | |
| 2766 | } | |
| 2767 | ||
| 2768 | static bfd_reloc_status_type | |
| 4ce794b7 AM |
2769 | ppc64_elf_unhandled_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol, |
| 2770 | void *data, asection *input_section, | |
| 2771 | bfd *output_bfd, char **error_message) | |
| 805fc799 AM |
2772 | { |
| 2773 | /* If this is a relocatable link (output_bfd test tells us), just | |
| 2774 | call the generic function. Any adjustment will be done at final | |
| 2775 | link time. */ | |
| 2776 | if (output_bfd != NULL) | |
| cedb70c5 | 2777 | return bfd_elf_generic_reloc (abfd, reloc_entry, symbol, data, |
| 805fc799 AM |
2778 | input_section, output_bfd, error_message); |
| 2779 | ||
| 2780 | if (error_message != NULL) | |
| 2781 | { | |
| 2782 | static char buf[60]; | |
| 2783 | sprintf (buf, "generic linker can't handle %s", | |
| 2784 | reloc_entry->howto->name); | |
| 2785 | *error_message = buf; | |
| 2786 | } | |
| 2787 | return bfd_reloc_dangerous; | |
| 2788 | } | |
| 2789 | ||
| 927be08e AM |
2790 | /* Track GOT entries needed for a given symbol. We might need more |
| 2791 | than one got entry per symbol. */ | |
| 2792 | struct got_entry | |
| 2793 | { | |
| 2794 | struct got_entry *next; | |
| 2795 | ||
| 2796 | /* The symbol addend that we'll be placing in the GOT. */ | |
| 2797 | bfd_vma addend; | |
| 2798 | ||
| 2799 | /* Unlike other ELF targets, we use separate GOT entries for the same | |
| 2800 | symbol referenced from different input files. This is to support | |
| 2801 | automatic multiple TOC/GOT sections, where the TOC base can vary | |
| 2802 | from one input file to another. After partitioning into TOC groups | |
| 2803 | we merge entries within the group. | |
| 2804 | ||
| 2805 | Point to the BFD owning this GOT entry. */ | |
| 2806 | bfd *owner; | |
| 2807 | ||
| 2808 | /* Zero for non-tls entries, or TLS_TLS and one of TLS_GD, TLS_LD, | |
| 2809 | TLS_TPREL or TLS_DTPREL for tls entries. */ | |
| f961d9dd | 2810 | unsigned char tls_type; |
| 927be08e AM |
2811 | |
| 2812 | /* Non-zero if got.ent points to real entry. */ | |
| f961d9dd | 2813 | unsigned char is_indirect; |
| 927be08e AM |
2814 | |
| 2815 | /* Reference count until size_dynamic_sections, GOT offset thereafter. */ | |
| 2816 | union | |
| 2817 | { | |
| 2818 | bfd_signed_vma refcount; | |
| 2819 | bfd_vma offset; | |
| 2820 | struct got_entry *ent; | |
| 2821 | } got; | |
| 2822 | }; | |
| 2823 | ||
| 2824 | /* The same for PLT. */ | |
| 2825 | struct plt_entry | |
| 2826 | { | |
| 2827 | struct plt_entry *next; | |
| 2828 | ||
| 2829 | bfd_vma addend; | |
| 2830 | ||
| 2831 | union | |
| 2832 | { | |
| 2833 | bfd_signed_vma refcount; | |
| 2834 | bfd_vma offset; | |
| 2835 | } plt; | |
| 2836 | }; | |
| 2837 | ||
| e717da7e AM |
2838 | struct ppc64_elf_obj_tdata |
| 2839 | { | |
| 2840 | struct elf_obj_tdata elf; | |
| 2841 | ||
| 2842 | /* Shortcuts to dynamic linker sections. */ | |
| 2843 | asection *got; | |
| 2844 | asection *relgot; | |
| 2845 | ||
| b3fac117 AM |
2846 | /* Used during garbage collection. We attach global symbols defined |
| 2847 | on removed .opd entries to this section so that the sym is removed. */ | |
| 2848 | asection *deleted_section; | |
| 81688140 | 2849 | |
| 927be08e | 2850 | /* TLS local dynamic got entry handling. Support for multiple GOT |
| e717da7e | 2851 | sections means we potentially need one of these for each input bfd. */ |
| 927be08e | 2852 | struct got_entry tlsld_got; |
| 8860955f | 2853 | |
| 729eabd5 AM |
2854 | union { |
| 2855 | /* A copy of relocs before they are modified for --emit-relocs. */ | |
| 2856 | Elf_Internal_Rela *relocs; | |
| 2857 | ||
| 2858 | /* Section contents. */ | |
| 2859 | bfd_byte *contents; | |
| 2860 | } opd; | |
| d77c8a4b AM |
2861 | |
| 2862 | /* Nonzero if this bfd has small toc/got relocs, ie. that expect | |
| 2863 | the reloc to be in the range -32768 to 32767. */ | |
| 98528052 AM |
2864 | unsigned int has_small_toc_reloc : 1; |
| 2865 | ||
| 560c8763 AM |
2866 | /* Set if toc/got ha relocs detected not using r2, or lo reloc |
| 2867 | instruction not one we handle. */ | |
| 2868 | unsigned int unexpected_toc_insn : 1; | |
| e717da7e AM |
2869 | }; |
| 2870 | ||
| 2871 | #define ppc64_elf_tdata(bfd) \ | |
| 2872 | ((struct ppc64_elf_obj_tdata *) (bfd)->tdata.any) | |
| 2873 | ||
| 2874 | #define ppc64_tlsld_got(bfd) \ | |
| 2875 | (&ppc64_elf_tdata (bfd)->tlsld_got) | |
| 2876 | ||
| 0c8d6e5c AM |
2877 | #define is_ppc64_elf(bfd) \ |
| 2878 | (bfd_get_flavour (bfd) == bfd_target_elf_flavour \ | |
| 4dfe6ac6 | 2879 | && elf_object_id (bfd) == PPC64_ELF_DATA) |
| 0c8d6e5c | 2880 | |
| e717da7e AM |
2881 | /* Override the generic function because we store some extras. */ |
| 2882 | ||
| 2883 | static bfd_boolean | |
| 2884 | ppc64_elf_mkobject (bfd *abfd) | |
| 2885 | { | |
| 0ffa91dd | 2886 | return bfd_elf_allocate_object (abfd, sizeof (struct ppc64_elf_obj_tdata), |
| 4dfe6ac6 | 2887 | PPC64_ELF_DATA); |
| e717da7e AM |
2888 | } |
| 2889 | ||
| feee612b | 2890 | /* Fix bad default arch selected for a 64 bit input bfd when the |
| 14b57c7c | 2891 | default is 32 bit. Also select arch based on apuinfo. */ |
| feee612b | 2892 | |
| b34976b6 | 2893 | static bfd_boolean |
| 4ce794b7 | 2894 | ppc64_elf_object_p (bfd *abfd) |
| feee612b | 2895 | { |
| 14b57c7c AM |
2896 | if (!abfd->arch_info->the_default) |
| 2897 | return TRUE; | |
| 2898 | ||
| 2899 | if (abfd->arch_info->bits_per_word == 32) | |
| feee612b AM |
2900 | { |
| 2901 | Elf_Internal_Ehdr *i_ehdr = elf_elfheader (abfd); | |
| 2902 | ||
| 2903 | if (i_ehdr->e_ident[EI_CLASS] == ELFCLASS64) | |
| 2904 | { | |
| 2905 | /* Relies on arch after 32 bit default being 64 bit default. */ | |
| 2906 | abfd->arch_info = abfd->arch_info->next; | |
| 2907 | BFD_ASSERT (abfd->arch_info->bits_per_word == 64); | |
| 2908 | } | |
| 2909 | } | |
| 14b57c7c | 2910 | return _bfd_elf_ppc_set_arch (abfd); |
| feee612b AM |
2911 | } |
| 2912 | ||
| d37c89e5 AM |
2913 | /* Support for core dump NOTE sections. */ |
| 2914 | ||
| 2915 | static bfd_boolean | |
| 2916 | ppc64_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note) | |
| 2917 | { | |
| eea6121a | 2918 | size_t offset, size; |
| d37c89e5 AM |
2919 | |
| 2920 | if (note->descsz != 504) | |
| 2921 | return FALSE; | |
| 2922 | ||
| 2923 | /* pr_cursig */ | |
| 228e534f | 2924 | elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12); |
| d37c89e5 AM |
2925 | |
| 2926 | /* pr_pid */ | |
| 228e534f | 2927 | elf_tdata (abfd)->core->lwpid = bfd_get_32 (abfd, note->descdata + 32); |
| d37c89e5 AM |
2928 | |
| 2929 | /* pr_reg */ | |
| 2930 | offset = 112; | |
| eea6121a | 2931 | size = 384; |
| d37c89e5 AM |
2932 | |
| 2933 | /* Make a ".reg/999" section. */ | |
| 2934 | return _bfd_elfcore_make_pseudosection (abfd, ".reg", | |
| eea6121a | 2935 | size, note->descpos + offset); |
| d37c89e5 AM |
2936 | } |
| 2937 | ||
| 2938 | static bfd_boolean | |
| 2939 | ppc64_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note) | |
| 2940 | { | |
| 2941 | if (note->descsz != 136) | |
| 2942 | return FALSE; | |
| 2943 | ||
| 228e534f | 2944 | elf_tdata (abfd)->core->pid |
| bc989cdc | 2945 | = bfd_get_32 (abfd, note->descdata + 24); |
| 228e534f | 2946 | elf_tdata (abfd)->core->program |
| d37c89e5 | 2947 | = _bfd_elfcore_strndup (abfd, note->descdata + 40, 16); |
| 228e534f | 2948 | elf_tdata (abfd)->core->command |
| d37c89e5 AM |
2949 | = _bfd_elfcore_strndup (abfd, note->descdata + 56, 80); |
| 2950 | ||
| 2951 | return TRUE; | |
| 2952 | } | |
| 2953 | ||
| 183e98be AM |
2954 | static char * |
| 2955 | ppc64_elf_write_core_note (bfd *abfd, char *buf, int *bufsiz, int note_type, | |
| 2956 | ...) | |
| 2957 | { | |
| 2958 | switch (note_type) | |
| 2959 | { | |
| 2960 | default: | |
| 2961 | return NULL; | |
| 2962 | ||
| 2963 | case NT_PRPSINFO: | |
| 2964 | { | |
| 2965 | char data[136]; | |
| 2966 | va_list ap; | |
| 2967 | ||
| 2968 | va_start (ap, note_type); | |
| 75cd47ed | 2969 | memset (data, 0, sizeof (data)); |
| 183e98be AM |
2970 | strncpy (data + 40, va_arg (ap, const char *), 16); |
| 2971 | strncpy (data + 56, va_arg (ap, const char *), 80); | |
| 2972 | va_end (ap); | |
| 2973 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2974 | "CORE", note_type, data, sizeof (data)); | |
| 2975 | } | |
| 2976 | ||
| 2977 | case NT_PRSTATUS: | |
| 2978 | { | |
| 2979 | char data[504]; | |
| 2980 | va_list ap; | |
| 2981 | long pid; | |
| 2982 | int cursig; | |
| 2983 | const void *greg; | |
| 2984 | ||
| 2985 | va_start (ap, note_type); | |
| 2986 | memset (data, 0, 112); | |
| 2987 | pid = va_arg (ap, long); | |
| 2988 | bfd_put_32 (abfd, pid, data + 32); | |
| 2989 | cursig = va_arg (ap, int); | |
| 2990 | bfd_put_16 (abfd, cursig, data + 12); | |
| 2991 | greg = va_arg (ap, const void *); | |
| 2992 | memcpy (data + 112, greg, 384); | |
| 2993 | memset (data + 496, 0, 8); | |
| 2994 | va_end (ap); | |
| 2995 | return elfcore_write_note (abfd, buf, bufsiz, | |
| 2996 | "CORE", note_type, data, sizeof (data)); | |
| 2997 | } | |
| 2998 | } | |
| 2999 | } | |
| 3000 | ||
| 5d35169e AM |
3001 | /* Add extra PPC sections. */ |
| 3002 | ||
| b35d266b | 3003 | static const struct bfd_elf_special_section ppc64_elf_special_sections[]= |
| 7f4d3958 | 3004 | { |
| 0112cd26 NC |
3005 | { STRING_COMMA_LEN (".plt"), 0, SHT_NOBITS, 0 }, |
| 3006 | { STRING_COMMA_LEN (".sbss"), -2, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3007 | { STRING_COMMA_LEN (".sdata"), -2, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3008 | { STRING_COMMA_LEN (".toc"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3009 | { STRING_COMMA_LEN (".toc1"), 0, SHT_PROGBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3010 | { STRING_COMMA_LEN (".tocbss"), 0, SHT_NOBITS, SHF_ALLOC + SHF_WRITE }, | |
| 3011 | { NULL, 0, 0, 0, 0 } | |
| 5d35169e AM |
3012 | }; |
| 3013 | ||
| 7c8fe5c4 AM |
3014 | enum _ppc64_sec_type { |
| 3015 | sec_normal = 0, | |
| 3016 | sec_opd = 1, | |
| 3017 | sec_toc = 2 | |
| 3018 | }; | |
| 3019 | ||
| f0abc2a1 AM |
3020 | struct _ppc64_elf_section_data |
| 3021 | { | |
| 3022 | struct bfd_elf_section_data elf; | |
| 411e1bfb | 3023 | |
| f0abc2a1 AM |
3024 | union |
| 3025 | { | |
| 51aecdc5 AM |
3026 | /* An array with one entry for each opd function descriptor, |
| 3027 | and some spares since opd entries may be either 16 or 24 bytes. */ | |
| 3028 | #define OPD_NDX(OFF) ((OFF) >> 4) | |
| 74f0fb50 AM |
3029 | struct _opd_sec_data |
| 3030 | { | |
| 3031 | /* Points to the function code section for local opd entries. */ | |
| 3032 | asection **func_sec; | |
| 3033 | ||
| 3034 | /* After editing .opd, adjust references to opd local syms. */ | |
| 3035 | long *adjust; | |
| 3036 | } opd; | |
| 7c8fe5c4 | 3037 | |
| 3a71aa26 AM |
3038 | /* An array for toc sections, indexed by offset/8. */ |
| 3039 | struct _toc_sec_data | |
| 3040 | { | |
| 3041 | /* Specifies the relocation symbol index used at a given toc offset. */ | |
| 3042 | unsigned *symndx; | |
| 3043 | ||
| 3044 | /* And the relocation addend. */ | |
| 3045 | bfd_vma *add; | |
| 3046 | } toc; | |
| 7c8fe5c4 AM |
3047 | } u; |
| 3048 | ||
| 3049 | enum _ppc64_sec_type sec_type:2; | |
| 411e1bfb | 3050 | |
| 7c8fe5c4 AM |
3051 | /* Flag set when small branches are detected. Used to |
| 3052 | select suitable defaults for the stub group size. */ | |
| 3053 | unsigned int has_14bit_branch:1; | |
| f0abc2a1 AM |
3054 | }; |
| 3055 | ||
| 3056 | #define ppc64_elf_section_data(sec) \ | |
| 411e1bfb | 3057 | ((struct _ppc64_elf_section_data *) elf_section_data (sec)) |
| f0abc2a1 AM |
3058 | |
| 3059 | static bfd_boolean | |
| 4ce794b7 | 3060 | ppc64_elf_new_section_hook (bfd *abfd, asection *sec) |
| f0abc2a1 | 3061 | { |
| f592407e AM |
3062 | if (!sec->used_by_bfd) |
| 3063 | { | |
| 3064 | struct _ppc64_elf_section_data *sdata; | |
| 3065 | bfd_size_type amt = sizeof (*sdata); | |
| f0abc2a1 | 3066 | |
| f592407e AM |
3067 | sdata = bfd_zalloc (abfd, amt); |
| 3068 | if (sdata == NULL) | |
| 3069 | return FALSE; | |
| 3070 | sec->used_by_bfd = sdata; | |
| 3071 | } | |
| f0abc2a1 AM |
3072 | |
| 3073 | return _bfd_elf_new_section_hook (abfd, sec); | |
| 3074 | } | |
| 4025353c | 3075 | |
| 74f0fb50 | 3076 | static struct _opd_sec_data * |
| 4025353c AM |
3077 | get_opd_info (asection * sec) |
| 3078 | { | |
| 3079 | if (sec != NULL | |
| 3080 | && ppc64_elf_section_data (sec) != NULL | |
| 7c8fe5c4 | 3081 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) |
| 74f0fb50 | 3082 | return &ppc64_elf_section_data (sec)->u.opd; |
| 4025353c AM |
3083 | return NULL; |
| 3084 | } | |
| 90e3cdf2 JJ |
3085 | \f |
| 3086 | /* Parameters for the qsort hook. */ | |
| 90e3cdf2 JJ |
3087 | static bfd_boolean synthetic_relocatable; |
| 3088 | ||
| 699733f6 | 3089 | /* qsort comparison function for ppc64_elf_get_synthetic_symtab. */ |
| 90e3cdf2 JJ |
3090 | |
| 3091 | static int | |
| 3092 | compare_symbols (const void *ap, const void *bp) | |
| 3093 | { | |
| 3094 | const asymbol *a = * (const asymbol **) ap; | |
| 3095 | const asymbol *b = * (const asymbol **) bp; | |
| 3096 | ||
| 699733f6 AM |
3097 | /* Section symbols first. */ |
| 3098 | if ((a->flags & BSF_SECTION_SYM) && !(b->flags & BSF_SECTION_SYM)) | |
| 90e3cdf2 | 3099 | return -1; |
| 699733f6 | 3100 | if (!(a->flags & BSF_SECTION_SYM) && (b->flags & BSF_SECTION_SYM)) |
| 90e3cdf2 JJ |
3101 | return 1; |
| 3102 | ||
| 699733f6 | 3103 | /* then .opd symbols. */ |
| ffcfec52 AM |
3104 | if (strcmp (a->section->name, ".opd") == 0 |
| 3105 | && strcmp (b->section->name, ".opd") != 0) | |
| 90e3cdf2 | 3106 | return -1; |
| ffcfec52 AM |
3107 | if (strcmp (a->section->name, ".opd") != 0 |
| 3108 | && strcmp (b->section->name, ".opd") == 0) | |
| 90e3cdf2 JJ |
3109 | return 1; |
| 3110 | ||
| 699733f6 | 3111 | /* then other code symbols. */ |
| 90e3cdf2 JJ |
3112 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) |
| 3113 | == (SEC_CODE | SEC_ALLOC) | |
| 3114 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3115 | != (SEC_CODE | SEC_ALLOC)) | |
| 3116 | return -1; | |
| 3117 | ||
| 3118 | if ((a->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3119 | != (SEC_CODE | SEC_ALLOC) | |
| 3120 | && (b->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3121 | == (SEC_CODE | SEC_ALLOC)) | |
| 3122 | return 1; | |
| 3123 | ||
| 3124 | if (synthetic_relocatable) | |
| 3125 | { | |
| 3126 | if (a->section->id < b->section->id) | |
| 3127 | return -1; | |
| 3128 | ||
| 3129 | if (a->section->id > b->section->id) | |
| 3130 | return 1; | |
| 3131 | } | |
| 3132 | ||
| 3133 | if (a->value + a->section->vma < b->value + b->section->vma) | |
| 3134 | return -1; | |
| 3135 | ||
| 3136 | if (a->value + a->section->vma > b->value + b->section->vma) | |
| 3137 | return 1; | |
| 3138 | ||
| 4d35a0aa AM |
3139 | /* For syms with the same value, prefer strong dynamic global function |
| 3140 | syms over other syms. */ | |
| 3141 | if ((a->flags & BSF_GLOBAL) != 0 && (b->flags & BSF_GLOBAL) == 0) | |
| 3142 | return -1; | |
| 3143 | ||
| 3144 | if ((a->flags & BSF_GLOBAL) == 0 && (b->flags & BSF_GLOBAL) != 0) | |
| 3145 | return 1; | |
| 3146 | ||
| 3147 | if ((a->flags & BSF_FUNCTION) != 0 && (b->flags & BSF_FUNCTION) == 0) | |
| 3148 | return -1; | |
| 3149 | ||
| 3150 | if ((a->flags & BSF_FUNCTION) == 0 && (b->flags & BSF_FUNCTION) != 0) | |
| 3151 | return 1; | |
| 3152 | ||
| 3153 | if ((a->flags & BSF_WEAK) == 0 && (b->flags & BSF_WEAK) != 0) | |
| 3154 | return -1; | |
| 3155 | ||
| 3156 | if ((a->flags & BSF_WEAK) != 0 && (b->flags & BSF_WEAK) == 0) | |
| 3157 | return 1; | |
| 3158 | ||
| 3159 | if ((a->flags & BSF_DYNAMIC) != 0 && (b->flags & BSF_DYNAMIC) == 0) | |
| 3160 | return -1; | |
| 3161 | ||
| 3162 | if ((a->flags & BSF_DYNAMIC) == 0 && (b->flags & BSF_DYNAMIC) != 0) | |
| 3163 | return 1; | |
| 3164 | ||
| 90e3cdf2 JJ |
3165 | return 0; |
| 3166 | } | |
| 3167 | ||
| 699733f6 | 3168 | /* Search SYMS for a symbol of the given VALUE. */ |
| 90e3cdf2 | 3169 | |
| 699733f6 | 3170 | static asymbol * |
| 7292b3ac | 3171 | sym_exists_at (asymbol **syms, long lo, long hi, unsigned int id, bfd_vma value) |
| 90e3cdf2 | 3172 | { |
| 699733f6 | 3173 | long mid; |
| 90e3cdf2 | 3174 | |
| 7292b3ac | 3175 | if (id == (unsigned) -1) |
| 699733f6 AM |
3176 | { |
| 3177 | while (lo < hi) | |
| 3178 | { | |
| 3179 | mid = (lo + hi) >> 1; | |
| 3180 | if (syms[mid]->value + syms[mid]->section->vma < value) | |
| 3181 | lo = mid + 1; | |
| 3182 | else if (syms[mid]->value + syms[mid]->section->vma > value) | |
| 3183 | hi = mid; | |
| 3184 | else | |
| 3185 | return syms[mid]; | |
| 3186 | } | |
| 3187 | } | |
| 3188 | else | |
| 3189 | { | |
| 3190 | while (lo < hi) | |
| 3191 | { | |
| 3192 | mid = (lo + hi) >> 1; | |
| 3193 | if (syms[mid]->section->id < id) | |
| 3194 | lo = mid + 1; | |
| 3195 | else if (syms[mid]->section->id > id) | |
| 3196 | hi = mid; | |
| 3197 | else if (syms[mid]->value < value) | |
| 3198 | lo = mid + 1; | |
| 3199 | else if (syms[mid]->value > value) | |
| 3200 | hi = mid; | |
| 3201 | else | |
| 3202 | return syms[mid]; | |
| 3203 | } | |
| 3204 | } | |
| 3205 | return NULL; | |
| 90e3cdf2 JJ |
3206 | } |
| 3207 | ||
| 468392fb AM |
3208 | static bfd_boolean |
| 3209 | section_covers_vma (bfd *abfd ATTRIBUTE_UNUSED, asection *section, void *ptr) | |
| 3210 | { | |
| 3211 | bfd_vma vma = *(bfd_vma *) ptr; | |
| 3212 | return ((section->flags & SEC_ALLOC) != 0 | |
| 3213 | && section->vma <= vma | |
| 3214 | && vma < section->vma + section->size); | |
| 3215 | } | |
| 3216 | ||
| 699733f6 | 3217 | /* Create synthetic symbols, effectively restoring "dot-symbol" function |
| c4b0b099 AM |
3218 | entry syms. Also generate @plt symbols for the glink branch table. |
| 3219 | Returns count of synthetic symbols in RET or -1 on error. */ | |
| 90e3cdf2 JJ |
3220 | |
| 3221 | static long | |
| a7535cf3 AM |
3222 | ppc64_elf_get_synthetic_symtab (bfd *abfd, |
| 3223 | long static_count, asymbol **static_syms, | |
| 3224 | long dyn_count, asymbol **dyn_syms, | |
| c9727e01 | 3225 | asymbol **ret) |
| 90e3cdf2 JJ |
3226 | { |
| 3227 | asymbol *s; | |
| 699733f6 AM |
3228 | long i; |
| 3229 | long count; | |
| 90e3cdf2 | 3230 | char *names; |
| a7535cf3 | 3231 | long symcount, codesecsym, codesecsymend, secsymend, opdsymend; |
| ee67d69a | 3232 | asection *opd = NULL; |
| 90e3cdf2 | 3233 | bfd_boolean relocatable = (abfd->flags & (EXEC_P | DYNAMIC)) == 0; |
| a7535cf3 | 3234 | asymbol **syms; |
| ee67d69a | 3235 | int abi = abiversion (abfd); |
| 90e3cdf2 JJ |
3236 | |
| 3237 | *ret = NULL; | |
| 3238 | ||
| ee67d69a AM |
3239 | if (abi < 2) |
| 3240 | { | |
| 3241 | opd = bfd_get_section_by_name (abfd, ".opd"); | |
| 3242 | if (opd == NULL && abi == 1) | |
| 3243 | return 0; | |
| 3244 | } | |
| 90e3cdf2 | 3245 | |
| a7535cf3 | 3246 | symcount = static_count; |
| c9727e01 | 3247 | if (!relocatable) |
| a7535cf3 | 3248 | symcount += dyn_count; |
| 90e3cdf2 | 3249 | if (symcount == 0) |
| c9727e01 | 3250 | return 0; |
| 90e3cdf2 | 3251 | |
| a7535cf3 AM |
3252 | syms = bfd_malloc ((symcount + 1) * sizeof (*syms)); |
| 3253 | if (syms == NULL) | |
| 7356fed5 | 3254 | return -1; |
| a7535cf3 AM |
3255 | |
| 3256 | if (!relocatable && static_count != 0 && dyn_count != 0) | |
| 3257 | { | |
| 3258 | /* Use both symbol tables. */ | |
| 3259 | memcpy (syms, static_syms, static_count * sizeof (*syms)); | |
| 3260 | memcpy (syms + static_count, dyn_syms, (dyn_count + 1) * sizeof (*syms)); | |
| 3261 | } | |
| 3262 | else if (!relocatable && static_count == 0) | |
| 3263 | memcpy (syms, dyn_syms, (symcount + 1) * sizeof (*syms)); | |
| 3264 | else | |
| 3265 | memcpy (syms, static_syms, (symcount + 1) * sizeof (*syms)); | |
| 3266 | ||
| 90e3cdf2 | 3267 | synthetic_relocatable = relocatable; |
| 595da8c5 | 3268 | qsort (syms, symcount, sizeof (*syms), compare_symbols); |
| 90e3cdf2 | 3269 | |
| c9727e01 AM |
3270 | if (!relocatable && symcount > 1) |
| 3271 | { | |
| 3272 | long j; | |
| 3273 | /* Trim duplicate syms, since we may have merged the normal and | |
| 3274 | dynamic symbols. Actually, we only care about syms that have | |
| 3b36f7e6 | 3275 | different values, so trim any with the same value. */ |
| c9727e01 AM |
3276 | for (i = 1, j = 1; i < symcount; ++i) |
| 3277 | if (syms[i - 1]->value + syms[i - 1]->section->vma | |
| 3278 | != syms[i]->value + syms[i]->section->vma) | |
| 3279 | syms[j++] = syms[i]; | |
| 3280 | symcount = j; | |
| 3281 | } | |
| 3282 | ||
| 699733f6 | 3283 | i = 0; |
| ffcfec52 | 3284 | if (strcmp (syms[i]->section->name, ".opd") == 0) |
| 699733f6 AM |
3285 | ++i; |
| 3286 | codesecsym = i; | |
| 90e3cdf2 | 3287 | |
| 699733f6 AM |
3288 | for (; i < symcount; ++i) |
| 3289 | if (((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3290 | != (SEC_CODE | SEC_ALLOC)) | |
| 3291 | || (syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3292 | break; | |
| 3293 | codesecsymend = i; | |
| 90e3cdf2 | 3294 | |
| 699733f6 AM |
3295 | for (; i < symcount; ++i) |
| 3296 | if ((syms[i]->flags & BSF_SECTION_SYM) == 0) | |
| 3297 | break; | |
| 3298 | secsymend = i; | |
| 90e3cdf2 | 3299 | |
| 699733f6 | 3300 | for (; i < symcount; ++i) |
| ffcfec52 | 3301 | if (strcmp (syms[i]->section->name, ".opd") != 0) |
| 699733f6 AM |
3302 | break; |
| 3303 | opdsymend = i; | |
| 90e3cdf2 | 3304 | |
| 699733f6 AM |
3305 | for (; i < symcount; ++i) |
| 3306 | if ((syms[i]->section->flags & (SEC_CODE | SEC_ALLOC | SEC_THREAD_LOCAL)) | |
| 3307 | != (SEC_CODE | SEC_ALLOC)) | |
| 3308 | break; | |
| 3309 | symcount = i; | |
| 3310 | ||
| c9727e01 | 3311 | count = 0; |
| 90e3cdf2 | 3312 | |
| 699733f6 | 3313 | if (relocatable) |
| 90e3cdf2 | 3314 | { |
| 699733f6 AM |
3315 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| 3316 | arelent *r; | |
| 3317 | size_t size; | |
| 3318 | long relcount; | |
| 90e3cdf2 | 3319 | |
| 468392fb AM |
3320 | if (opdsymend == secsymend) |
| 3321 | goto done; | |
| 3322 | ||
| 699733f6 | 3323 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; |
| 90e3cdf2 | 3324 | relcount = (opd->flags & SEC_RELOC) ? opd->reloc_count : 0; |
| 7356fed5 | 3325 | if (relcount == 0) |
| c9727e01 | 3326 | goto done; |
| 90e3cdf2 | 3327 | |
| 7356fed5 AM |
3328 | if (!(*slurp_relocs) (abfd, opd, static_syms, FALSE)) |
| 3329 | { | |
| 3330 | count = -1; | |
| 3331 | goto done; | |
| 3332 | } | |
| 3333 | ||
| 699733f6 | 3334 | size = 0; |
| 595da8c5 | 3335 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 699733f6 AM |
3336 | { |
| 3337 | asymbol *sym; | |
| 90e3cdf2 | 3338 | |
| 595da8c5 | 3339 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3340 | && r->address < syms[i]->value + opd->vma) |
| 3341 | ++r; | |
| 90e3cdf2 | 3342 | |
| 595da8c5 | 3343 | if (r == opd->relocation + relcount) |
| 699733f6 | 3344 | break; |
| 90e3cdf2 | 3345 | |
| 699733f6 AM |
3346 | if (r->address != syms[i]->value + opd->vma) |
| 3347 | continue; | |
| 90e3cdf2 | 3348 | |
| 699733f6 AM |
3349 | if (r->howto->type != R_PPC64_ADDR64) |
| 3350 | continue; | |
| 90e3cdf2 | 3351 | |
| 699733f6 AM |
3352 | sym = *r->sym_ptr_ptr; |
| 3353 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3354 | sym->section->id, sym->value + r->addend)) | |
| 3355 | { | |
| 3356 | ++count; | |
| 3357 | size += sizeof (asymbol); | |
| 3358 | size += strlen (syms[i]->name) + 2; | |
| 3359 | } | |
| 3360 | } | |
| 90e3cdf2 | 3361 | |
| c4b0b099 AM |
3362 | if (size == 0) |
| 3363 | goto done; | |
| 699733f6 AM |
3364 | s = *ret = bfd_malloc (size); |
| 3365 | if (s == NULL) | |
| 3366 | { | |
| 7356fed5 | 3367 | count = -1; |
| c9727e01 | 3368 | goto done; |
| 699733f6 | 3369 | } |
| 90e3cdf2 | 3370 | |
| 699733f6 | 3371 | names = (char *) (s + count); |
| 90e3cdf2 | 3372 | |
| 595da8c5 | 3373 | for (i = secsymend, r = opd->relocation; i < opdsymend; ++i) |
| 90e3cdf2 | 3374 | { |
| 699733f6 | 3375 | asymbol *sym; |
| 90e3cdf2 | 3376 | |
| 595da8c5 | 3377 | while (r < opd->relocation + relcount |
| 699733f6 AM |
3378 | && r->address < syms[i]->value + opd->vma) |
| 3379 | ++r; | |
| 90e3cdf2 | 3380 | |
| 595da8c5 | 3381 | if (r == opd->relocation + relcount) |
| 699733f6 AM |
3382 | break; |
| 3383 | ||
| 3384 | if (r->address != syms[i]->value + opd->vma) | |
| 3385 | continue; | |
| 3386 | ||
| 3387 | if (r->howto->type != R_PPC64_ADDR64) | |
| 3388 | continue; | |
| 90e3cdf2 | 3389 | |
| 699733f6 AM |
3390 | sym = *r->sym_ptr_ptr; |
| 3391 | if (!sym_exists_at (syms, opdsymend, symcount, | |
| 3392 | sym->section->id, sym->value + r->addend)) | |
| 3393 | { | |
| 3394 | size_t len; | |
| 3395 | ||
| 3396 | *s = *syms[i]; | |
| 6ba2a415 | 3397 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3398 | s->section = sym->section; |
| 3399 | s->value = sym->value + r->addend; | |
| 3400 | s->name = names; | |
| 3401 | *names++ = '.'; | |
| 3402 | len = strlen (syms[i]->name); | |
| 3403 | memcpy (names, syms[i]->name, len + 1); | |
| 3404 | names += len + 1; | |
| 6f610d07 UW |
3405 | /* Have udata.p point back to the original symbol this |
| 3406 | synthetic symbol was derived from. */ | |
| 3407 | s->udata.p = syms[i]; | |
| 699733f6 AM |
3408 | s++; |
| 3409 | } | |
| 3410 | } | |
| 3411 | } | |
| 3412 | else | |
| 90e3cdf2 | 3413 | { |
| 468392fb | 3414 | bfd_boolean (*slurp_relocs) (bfd *, asection *, asymbol **, bfd_boolean); |
| ee67d69a | 3415 | bfd_byte *contents = NULL; |
| 699733f6 | 3416 | size_t size; |
| 468392fb AM |
3417 | long plt_count = 0; |
| 3418 | bfd_vma glink_vma = 0, resolv_vma = 0; | |
| 3419 | asection *dynamic, *glink = NULL, *relplt = NULL; | |
| 3420 | arelent *p; | |
| 90e3cdf2 | 3421 | |
| ee67d69a | 3422 | if (opd != NULL && !bfd_malloc_and_get_section (abfd, opd, &contents)) |
| 699733f6 | 3423 | { |
| c4b0b099 AM |
3424 | free_contents_and_exit_err: |
| 3425 | count = -1; | |
| ee67d69a | 3426 | free_contents_and_exit: |
| 699733f6 | 3427 | if (contents) |
| ee67d69a | 3428 | free (contents); |
| c9727e01 | 3429 | goto done; |
| 699733f6 | 3430 | } |
| 90e3cdf2 | 3431 | |
| 699733f6 AM |
3432 | size = 0; |
| 3433 | for (i = secsymend; i < opdsymend; ++i) | |
| 3434 | { | |
| 3435 | bfd_vma ent; | |
| 90e3cdf2 | 3436 | |
| 5ef11c02 AM |
3437 | /* Ignore bogus symbols. */ |
| 3438 | if (syms[i]->value > opd->size - 8) | |
| 3439 | continue; | |
| 3440 | ||
| 699733f6 AM |
3441 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3442 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 3443 | { | |
| 3444 | ++count; | |
| 3445 | size += sizeof (asymbol); | |
| 3446 | size += strlen (syms[i]->name) + 2; | |
| 3447 | } | |
| 3448 | } | |
| 90e3cdf2 | 3449 | |
| 468392fb | 3450 | /* Get start of .glink stubs from DT_PPC64_GLINK. */ |
| 066ee829 AM |
3451 | if (dyn_count != 0 |
| 3452 | && (dynamic = bfd_get_section_by_name (abfd, ".dynamic")) != NULL) | |
| 468392fb AM |
3453 | { |
| 3454 | bfd_byte *dynbuf, *extdyn, *extdynend; | |
| 3455 | size_t extdynsize; | |
| 3456 | void (*swap_dyn_in) (bfd *, const void *, Elf_Internal_Dyn *); | |
| 3457 | ||
| 3458 | if (!bfd_malloc_and_get_section (abfd, dynamic, &dynbuf)) | |
| c4b0b099 | 3459 | goto free_contents_and_exit_err; |
| 468392fb AM |
3460 | |
| 3461 | extdynsize = get_elf_backend_data (abfd)->s->sizeof_dyn; | |
| 3462 | swap_dyn_in = get_elf_backend_data (abfd)->s->swap_dyn_in; | |
| 3463 | ||
| 3464 | extdyn = dynbuf; | |
| 3465 | extdynend = extdyn + dynamic->size; | |
| 3466 | for (; extdyn < extdynend; extdyn += extdynsize) | |
| 3467 | { | |
| 3468 | Elf_Internal_Dyn dyn; | |
| 3469 | (*swap_dyn_in) (abfd, extdyn, &dyn); | |
| 3470 | ||
| 3471 | if (dyn.d_tag == DT_NULL) | |
| 3472 | break; | |
| 3473 | ||
| 3474 | if (dyn.d_tag == DT_PPC64_GLINK) | |
| 3475 | { | |
| b9e5796b AM |
3476 | /* The first glink stub starts at offset 32; see |
| 3477 | comment in ppc64_elf_finish_dynamic_sections. */ | |
| 3478 | glink_vma = dyn.d_un.d_val + GLINK_CALL_STUB_SIZE - 8 * 4; | |
| 468392fb AM |
3479 | /* The .glink section usually does not survive the final |
| 3480 | link; search for the section (usually .text) where the | |
| 3481 | glink stubs now reside. */ | |
| 3482 | glink = bfd_sections_find_if (abfd, section_covers_vma, | |
| 3483 | &glink_vma); | |
| 3484 | break; | |
| 3485 | } | |
| 3486 | } | |
| 3487 | ||
| 3488 | free (dynbuf); | |
| 3489 | } | |
| 3490 | ||
| 3491 | if (glink != NULL) | |
| 3492 | { | |
| 3493 | /* Determine __glink trampoline by reading the relative branch | |
| 3494 | from the first glink stub. */ | |
| 3495 | bfd_byte buf[4]; | |
| b9e5796b AM |
3496 | unsigned int off = 0; |
| 3497 | ||
| 3498 | while (bfd_get_section_contents (abfd, glink, buf, | |
| 3499 | glink_vma + off - glink->vma, 4)) | |
| 468392fb AM |
3500 | { |
| 3501 | unsigned int insn = bfd_get_32 (abfd, buf); | |
| 3502 | insn ^= B_DOT; | |
| 3503 | if ((insn & ~0x3fffffc) == 0) | |
| b9e5796b AM |
3504 | { |
| 3505 | resolv_vma = glink_vma + off + (insn ^ 0x2000000) - 0x2000000; | |
| 3506 | break; | |
| 3507 | } | |
| 3508 | off += 4; | |
| 3509 | if (off > 4) | |
| 3510 | break; | |
| 468392fb AM |
3511 | } |
| 3512 | ||
| 3513 | if (resolv_vma) | |
| 3514 | size += sizeof (asymbol) + sizeof ("__glink_PLTresolve"); | |
| 468392fb | 3515 | |
| 066ee829 AM |
3516 | relplt = bfd_get_section_by_name (abfd, ".rela.plt"); |
| 3517 | if (relplt != NULL) | |
| 3518 | { | |
| 3519 | slurp_relocs = get_elf_backend_data (abfd)->s->slurp_reloc_table; | |
| 3520 | if (! (*slurp_relocs) (abfd, relplt, dyn_syms, TRUE)) | |
| c4b0b099 | 3521 | goto free_contents_and_exit_err; |
| 68ffbac6 | 3522 | |
| 066ee829 AM |
3523 | plt_count = relplt->size / sizeof (Elf64_External_Rela); |
| 3524 | size += plt_count * sizeof (asymbol); | |
| 468392fb | 3525 | |
| 066ee829 AM |
3526 | p = relplt->relocation; |
| 3527 | for (i = 0; i < plt_count; i++, p++) | |
| e054468f AM |
3528 | { |
| 3529 | size += strlen ((*p->sym_ptr_ptr)->name) + sizeof ("@plt"); | |
| 3530 | if (p->addend != 0) | |
| 3531 | size += sizeof ("+0x") - 1 + 16; | |
| 3532 | } | |
| 066ee829 | 3533 | } |
| 468392fb AM |
3534 | } |
| 3535 | ||
| c4b0b099 AM |
3536 | if (size == 0) |
| 3537 | goto free_contents_and_exit; | |
| 699733f6 AM |
3538 | s = *ret = bfd_malloc (size); |
| 3539 | if (s == NULL) | |
| c4b0b099 | 3540 | goto free_contents_and_exit_err; |
| 90e3cdf2 | 3541 | |
| 468392fb | 3542 | names = (char *) (s + count + plt_count + (resolv_vma != 0)); |
| 90e3cdf2 | 3543 | |
| 699733f6 | 3544 | for (i = secsymend; i < opdsymend; ++i) |
| 90e3cdf2 | 3545 | { |
| 699733f6 | 3546 | bfd_vma ent; |
| 90e3cdf2 | 3547 | |
| 5ef11c02 AM |
3548 | if (syms[i]->value > opd->size - 8) |
| 3549 | continue; | |
| 3550 | ||
| 699733f6 AM |
3551 | ent = bfd_get_64 (abfd, contents + syms[i]->value); |
| 3552 | if (!sym_exists_at (syms, opdsymend, symcount, -1, ent)) | |
| 90e3cdf2 | 3553 | { |
| c9727e01 | 3554 | long lo, hi; |
| 699733f6 | 3555 | size_t len; |
| c9727e01 | 3556 | asection *sec = abfd->sections; |
| 90e3cdf2 | 3557 | |
| 699733f6 AM |
3558 | *s = *syms[i]; |
| 3559 | lo = codesecsym; | |
| 3560 | hi = codesecsymend; | |
| 3561 | while (lo < hi) | |
| 3562 | { | |
| c9727e01 | 3563 | long mid = (lo + hi) >> 1; |
| 699733f6 AM |
3564 | if (syms[mid]->section->vma < ent) |
| 3565 | lo = mid + 1; | |
| 3566 | else if (syms[mid]->section->vma > ent) | |
| 3567 | hi = mid; | |
| 3568 | else | |
| c9727e01 AM |
3569 | { |
| 3570 | sec = syms[mid]->section; | |
| 3571 | break; | |
| 3572 | } | |
| 699733f6 AM |
3573 | } |
| 3574 | ||
| c9727e01 | 3575 | if (lo >= hi && lo > codesecsym) |
| 699733f6 | 3576 | sec = syms[lo - 1]->section; |
| 699733f6 AM |
3577 | |
| 3578 | for (; sec != NULL; sec = sec->next) | |
| 3579 | { | |
| 3580 | if (sec->vma > ent) | |
| 3581 | break; | |
| 63524580 JK |
3582 | /* SEC_LOAD may not be set if SEC is from a separate debug |
| 3583 | info file. */ | |
| 3584 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 699733f6 AM |
3585 | break; |
| 3586 | if ((sec->flags & SEC_CODE) != 0) | |
| 3587 | s->section = sec; | |
| 3588 | } | |
| 6ba2a415 | 3589 | s->flags |= BSF_SYNTHETIC; |
| 699733f6 AM |
3590 | s->value = ent - s->section->vma; |
| 3591 | s->name = names; | |
| 3592 | *names++ = '.'; | |
| 3593 | len = strlen (syms[i]->name); | |
| 3594 | memcpy (names, syms[i]->name, len + 1); | |
| 3595 | names += len + 1; | |
| 6f610d07 UW |
3596 | /* Have udata.p point back to the original symbol this |
| 3597 | synthetic symbol was derived from. */ | |
| 3598 | s->udata.p = syms[i]; | |
| 699733f6 | 3599 | s++; |
| 90e3cdf2 | 3600 | } |
| 90e3cdf2 | 3601 | } |
| 699733f6 | 3602 | free (contents); |
| 468392fb AM |
3603 | |
| 3604 | if (glink != NULL && relplt != NULL) | |
| 3605 | { | |
| 3606 | if (resolv_vma) | |
| 3607 | { | |
| 3608 | /* Add a symbol for the main glink trampoline. */ | |
| 86a4952b | 3609 | memset (s, 0, sizeof *s); |
| 468392fb | 3610 | s->the_bfd = abfd; |
| 6ba2a415 | 3611 | s->flags = BSF_GLOBAL | BSF_SYNTHETIC; |
| 468392fb AM |
3612 | s->section = glink; |
| 3613 | s->value = resolv_vma - glink->vma; | |
| 3614 | s->name = names; | |
| 3615 | memcpy (names, "__glink_PLTresolve", sizeof ("__glink_PLTresolve")); | |
| 3616 | names += sizeof ("__glink_PLTresolve"); | |
| 3617 | s++; | |
| 3618 | count++; | |
| 3619 | } | |
| 3620 | ||
| 3621 | /* FIXME: It would be very much nicer to put sym@plt on the | |
| 3622 | stub rather than on the glink branch table entry. The | |
| 3623 | objdump disassembler would then use a sensible symbol | |
| 3624 | name on plt calls. The difficulty in doing so is | |
| 3625 | a) finding the stubs, and, | |
| 3626 | b) matching stubs against plt entries, and, | |
| 3627 | c) there can be multiple stubs for a given plt entry. | |
| 3628 | ||
| 3629 | Solving (a) could be done by code scanning, but older | |
| 3630 | ppc64 binaries used different stubs to current code. | |
| 3631 | (b) is the tricky one since you need to known the toc | |
| 3632 | pointer for at least one function that uses a pic stub to | |
| 3633 | be able to calculate the plt address referenced. | |
| 3634 | (c) means gdb would need to set multiple breakpoints (or | |
| 3635 | find the glink branch itself) when setting breakpoints | |
| 3636 | for pending shared library loads. */ | |
| 3637 | p = relplt->relocation; | |
| 3638 | for (i = 0; i < plt_count; i++, p++) | |
| 3639 | { | |
| 3640 | size_t len; | |
| 3641 | ||
| 3642 | *s = **p->sym_ptr_ptr; | |
| 3643 | /* Undefined syms won't have BSF_LOCAL or BSF_GLOBAL set. Since | |
| 3644 | we are defining a symbol, ensure one of them is set. */ | |
| 3645 | if ((s->flags & BSF_LOCAL) == 0) | |
| 3646 | s->flags |= BSF_GLOBAL; | |
| 6ba2a415 | 3647 | s->flags |= BSF_SYNTHETIC; |
| 468392fb AM |
3648 | s->section = glink; |
| 3649 | s->value = glink_vma - glink->vma; | |
| 3650 | s->name = names; | |
| 3651 | s->udata.p = NULL; | |
| 3652 | len = strlen ((*p->sym_ptr_ptr)->name); | |
| 3653 | memcpy (names, (*p->sym_ptr_ptr)->name, len); | |
| 3654 | names += len; | |
| e054468f AM |
3655 | if (p->addend != 0) |
| 3656 | { | |
| 3657 | memcpy (names, "+0x", sizeof ("+0x") - 1); | |
| 3658 | names += sizeof ("+0x") - 1; | |
| 3659 | bfd_sprintf_vma (abfd, names, p->addend); | |
| 3660 | names += strlen (names); | |
| 3661 | } | |
| 468392fb AM |
3662 | memcpy (names, "@plt", sizeof ("@plt")); |
| 3663 | names += sizeof ("@plt"); | |
| 3664 | s++; | |
| b9e5796b AM |
3665 | if (abi < 2) |
| 3666 | { | |
| 3667 | glink_vma += 8; | |
| 3668 | if (i >= 0x8000) | |
| 3669 | glink_vma += 4; | |
| 3670 | } | |
| 3671 | else | |
| 468392fb AM |
3672 | glink_vma += 4; |
| 3673 | } | |
| 3674 | count += plt_count; | |
| 3675 | } | |
| 90e3cdf2 JJ |
3676 | } |
| 3677 | ||
| c9727e01 | 3678 | done: |
| a7535cf3 | 3679 | free (syms); |
| 90e3cdf2 JJ |
3680 | return count; |
| 3681 | } | |
| 5bd4f169 | 3682 | \f |
| 65f38f15 AM |
3683 | /* The following functions are specific to the ELF linker, while |
| 3684 | functions above are used generally. Those named ppc64_elf_* are | |
| 3685 | called by the main ELF linker code. They appear in this file more | |
| 3686 | or less in the order in which they are called. eg. | |
| 3687 | ppc64_elf_check_relocs is called early in the link process, | |
| 3688 | ppc64_elf_finish_dynamic_sections is one of the last functions | |
| e86ce104 AM |
3689 | called. |
| 3690 | ||
| 3691 | PowerPC64-ELF uses a similar scheme to PowerPC64-XCOFF in that | |
| 3692 | functions have both a function code symbol and a function descriptor | |
| 3693 | symbol. A call to foo in a relocatable object file looks like: | |
| 3694 | ||
| 3695 | . .text | |
| 3696 | . x: | |
| 3697 | . bl .foo | |
| 3698 | . nop | |
| 3699 | ||
| 3700 | The function definition in another object file might be: | |
| 3701 | ||
| 3702 | . .section .opd | |
| 3703 | . foo: .quad .foo | |
| 3704 | . .quad .TOC.@tocbase | |
| 3705 | . .quad 0 | |
| 3706 | . | |
| 3707 | . .text | |
| 3708 | . .foo: blr | |
| 3709 | ||
| 3710 | When the linker resolves the call during a static link, the branch | |
| 3711 | unsurprisingly just goes to .foo and the .opd information is unused. | |
| 3712 | If the function definition is in a shared library, things are a little | |
| 3713 | different: The call goes via a plt call stub, the opd information gets | |
| 3714 | copied to the plt, and the linker patches the nop. | |
| 3715 | ||
| 3716 | . x: | |
| 3717 | . bl .foo_stub | |
| 3718 | . ld 2,40(1) | |
| 3719 | . | |
| 3720 | . | |
| 3721 | . .foo_stub: | |
| 71a39c98 AM |
3722 | . std 2,40(1) # in practice, the call stub |
| 3723 | . addis 11,2,Lfoo@toc@ha # is slightly optimized, but | |
| 3724 | . addi 11,11,Lfoo@toc@l # this is the general idea | |
| 3725 | . ld 12,0(11) | |
| 3726 | . ld 2,8(11) | |
| 3727 | . mtctr 12 | |
| 3728 | . ld 11,16(11) | |
| e86ce104 AM |
3729 | . bctr |
| 3730 | . | |
| 3731 | . .section .plt | |
| 3732 | . Lfoo: reloc (R_PPC64_JMP_SLOT, foo) | |
| 3733 | ||
| 3734 | The "reloc ()" notation is supposed to indicate that the linker emits | |
| 3735 | an R_PPC64_JMP_SLOT reloc against foo. The dynamic linker does the opd | |
| 3736 | copying. | |
| 3737 | ||
| 3738 | What are the difficulties here? Well, firstly, the relocations | |
| 3739 | examined by the linker in check_relocs are against the function code | |
| 3740 | sym .foo, while the dynamic relocation in the plt is emitted against | |
| 3741 | the function descriptor symbol, foo. Somewhere along the line, we need | |
| 3742 | to carefully copy dynamic link information from one symbol to the other. | |
| 3743 | Secondly, the generic part of the elf linker will make .foo a dynamic | |
| 3744 | symbol as is normal for most other backends. We need foo dynamic | |
| 3745 | instead, at least for an application final link. However, when | |
| 3746 | creating a shared library containing foo, we need to have both symbols | |
| 3747 | dynamic so that references to .foo are satisfied during the early | |
| 3748 | stages of linking. Otherwise the linker might decide to pull in a | |
| 8387904d AM |
3749 | definition from some other object, eg. a static library. |
| 3750 | ||
| 3751 | Update: As of August 2004, we support a new convention. Function | |
| 3752 | calls may use the function descriptor symbol, ie. "bl foo". This | |
| 3753 | behaves exactly as "bl .foo". */ | |
| 65f38f15 | 3754 | |
| 1d483afe | 3755 | /* Of those relocs that might be copied as dynamic relocs, this function |
| 58ac9f71 AM |
3756 | selects those that must be copied when linking a shared library, |
| 3757 | even when the symbol is local. */ | |
| 65f38f15 | 3758 | |
| 1d483afe AM |
3759 | static int |
| 3760 | must_be_dyn_reloc (struct bfd_link_info *info, | |
| 3761 | enum elf_ppc64_reloc_type r_type) | |
| 3762 | { | |
| 3763 | switch (r_type) | |
| 3764 | { | |
| 3765 | default: | |
| 3766 | return 1; | |
| 3767 | ||
| 3768 | case R_PPC64_REL32: | |
| 3769 | case R_PPC64_REL64: | |
| 3770 | case R_PPC64_REL30: | |
| 3771 | return 0; | |
| 3772 | ||
| 3773 | case R_PPC64_TPREL16: | |
| 3774 | case R_PPC64_TPREL16_LO: | |
| 3775 | case R_PPC64_TPREL16_HI: | |
| 3776 | case R_PPC64_TPREL16_HA: | |
| 3777 | case R_PPC64_TPREL16_DS: | |
| 3778 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
3779 | case R_PPC64_TPREL16_HIGH: |
| 3780 | case R_PPC64_TPREL16_HIGHA: | |
| 1d483afe AM |
3781 | case R_PPC64_TPREL16_HIGHER: |
| 3782 | case R_PPC64_TPREL16_HIGHERA: | |
| 3783 | case R_PPC64_TPREL16_HIGHEST: | |
| 3784 | case R_PPC64_TPREL16_HIGHESTA: | |
| 3785 | case R_PPC64_TPREL64: | |
| 0e1862bb | 3786 | return !bfd_link_executable (info); |
| 1d483afe AM |
3787 | } |
| 3788 | } | |
| 65f38f15 | 3789 | |
| f4656909 AM |
3790 | /* If ELIMINATE_COPY_RELOCS is non-zero, the linker will try to avoid |
| 3791 | copying dynamic variables from a shared lib into an app's dynbss | |
| 3792 | section, and instead use a dynamic relocation to point into the | |
| 5d35169e AM |
3793 | shared lib. With code that gcc generates, it's vital that this be |
| 3794 | enabled; In the PowerPC64 ABI, the address of a function is actually | |
| 3795 | the address of a function descriptor, which resides in the .opd | |
| 3796 | section. gcc uses the descriptor directly rather than going via the | |
| 3797 | GOT as some other ABI's do, which means that initialized function | |
| 3798 | pointers must reference the descriptor. Thus, a function pointer | |
| 3799 | initialized to the address of a function in a shared library will | |
| 3800 | either require a copy reloc, or a dynamic reloc. Using a copy reloc | |
| 4cc11e76 | 3801 | redefines the function descriptor symbol to point to the copy. This |
| 5d35169e AM |
3802 | presents a problem as a plt entry for that function is also |
| 3803 | initialized from the function descriptor symbol and the copy reloc | |
| 3804 | may not be initialized first. */ | |
| a23b6845 | 3805 | #define ELIMINATE_COPY_RELOCS 1 |
| f4656909 | 3806 | |
| 721956f4 | 3807 | /* Section name for stubs is the associated section name plus this |
| 29942be8 NC |
3808 | string. */ |
| 3809 | #define STUB_SUFFIX ".stub" | |
| 721956f4 AM |
3810 | |
| 3811 | /* Linker stubs. | |
| 3812 | ppc_stub_long_branch: | |
| 3813 | Used when a 14 bit branch (or even a 24 bit branch) can't reach its | |
| 3814 | destination, but a 24 bit branch in a stub section will reach. | |
| 3815 | . b dest | |
| 3816 | ||
| 3817 | ppc_stub_plt_branch: | |
| 3818 | Similar to the above, but a 24 bit branch in the stub section won't | |
| 3819 | reach its destination. | |
| 71a39c98 AM |
3820 | . addis %r11,%r2,xxx@toc@ha |
| 3821 | . ld %r12,xxx@toc@l(%r11) | |
| 3822 | . mtctr %r12 | |
| 721956f4 AM |
3823 | . bctr |
| 3824 | ||
| 3825 | ppc_stub_plt_call: | |
| 2c66dc6c AM |
3826 | Used to call a function in a shared library. If it so happens that |
| 3827 | the plt entry referenced crosses a 64k boundary, then an extra | |
| 71a39c98 | 3828 | "addi %r11,%r11,xxx@toc@l" will be inserted before the "mtctr". |
| 721956f4 | 3829 | . std %r2,40(%r1) |
| 71a39c98 AM |
3830 | . addis %r11,%r2,xxx@toc@ha |
| 3831 | . ld %r12,xxx+0@toc@l(%r11) | |
| 3832 | . mtctr %r12 | |
| 3833 | . ld %r2,xxx+8@toc@l(%r11) | |
| 3834 | . ld %r11,xxx+16@toc@l(%r11) | |
| 721956f4 | 3835 | . bctr |
| ad8e1ba5 AM |
3836 | |
| 3837 | ppc_stub_long_branch and ppc_stub_plt_branch may also have additional | |
| 3838 | code to adjust the value and save r2 to support multiple toc sections. | |
| 3839 | A ppc_stub_long_branch with an r2 offset looks like: | |
| 3840 | . std %r2,40(%r1) | |
| 3841 | . addis %r2,%r2,off@ha | |
| 3842 | . addi %r2,%r2,off@l | |
| 3843 | . b dest | |
| 3844 | ||
| 3845 | A ppc_stub_plt_branch with an r2 offset looks like: | |
| 3846 | . std %r2,40(%r1) | |
| 71a39c98 AM |
3847 | . addis %r11,%r2,xxx@toc@ha |
| 3848 | . ld %r12,xxx@toc@l(%r11) | |
| ad8e1ba5 AM |
3849 | . addis %r2,%r2,off@ha |
| 3850 | . addi %r2,%r2,off@l | |
| 71a39c98 | 3851 | . mtctr %r12 |
| ad8e1ba5 | 3852 | . bctr |
| ac2df442 AM |
3853 | |
| 3854 | In cases where the "addis" instruction would add zero, the "addis" is | |
| 3855 | omitted and following instructions modified slightly in some cases. | |
| 721956f4 AM |
3856 | */ |
| 3857 | ||
| 3858 | enum ppc_stub_type { | |
| 3859 | ppc_stub_none, | |
| 3860 | ppc_stub_long_branch, | |
| ad8e1ba5 | 3861 | ppc_stub_long_branch_r2off, |
| 721956f4 | 3862 | ppc_stub_plt_branch, |
| ad8e1ba5 | 3863 | ppc_stub_plt_branch_r2off, |
| 794e51c0 | 3864 | ppc_stub_plt_call, |
| 7341d5e2 | 3865 | ppc_stub_plt_call_r2save, |
| a4b6fadd AM |
3866 | ppc_stub_global_entry, |
| 3867 | ppc_stub_save_res | |
| 721956f4 AM |
3868 | }; |
| 3869 | ||
| 6f20ed8a AM |
3870 | /* Information on stub grouping. */ |
| 3871 | struct map_stub | |
| 3872 | { | |
| 3873 | /* The stub section. */ | |
| 3874 | asection *stub_sec; | |
| 3875 | /* This is the section to which stubs in the group will be attached. */ | |
| 3876 | asection *link_sec; | |
| a4b6fadd AM |
3877 | /* Next group. */ |
| 3878 | struct map_stub *next; | |
| 3879 | /* Whether to emit a copy of register save/restore functions in this | |
| 3880 | group. */ | |
| 3881 | int needs_save_res; | |
| 6f20ed8a AM |
3882 | }; |
| 3883 | ||
| 721956f4 AM |
3884 | struct ppc_stub_hash_entry { |
| 3885 | ||
| 3886 | /* Base hash table entry structure. */ | |
| 3887 | struct bfd_hash_entry root; | |
| 3888 | ||
| ad8e1ba5 AM |
3889 | enum ppc_stub_type stub_type; |
| 3890 | ||
| 6f20ed8a AM |
3891 | /* Group information. */ |
| 3892 | struct map_stub *group; | |
| 721956f4 AM |
3893 | |
| 3894 | /* Offset within stub_sec of the beginning of this stub. */ | |
| 3895 | bfd_vma stub_offset; | |
| 3896 | ||
| 3897 | /* Given the symbol's value and its section we can determine its final | |
| 3898 | value when building the stubs (so the stub knows where to jump. */ | |
| 3899 | bfd_vma target_value; | |
| 3900 | asection *target_section; | |
| 3901 | ||
| 721956f4 AM |
3902 | /* The symbol table entry, if any, that this was derived from. */ |
| 3903 | struct ppc_link_hash_entry *h; | |
| e054468f | 3904 | struct plt_entry *plt_ent; |
| 721956f4 | 3905 | |
| 6911b7dc AM |
3906 | /* Symbol st_other. */ |
| 3907 | unsigned char other; | |
| 721956f4 AM |
3908 | }; |
| 3909 | ||
| 3910 | struct ppc_branch_hash_entry { | |
| 3911 | ||
| 3912 | /* Base hash table entry structure. */ | |
| 3913 | struct bfd_hash_entry root; | |
| 3914 | ||
| c456f082 | 3915 | /* Offset within branch lookup table. */ |
| 721956f4 AM |
3916 | unsigned int offset; |
| 3917 | ||
| 3918 | /* Generation marker. */ | |
| 3919 | unsigned int iter; | |
| 3920 | }; | |
| 65f38f15 | 3921 | |
| 19e08130 AM |
3922 | /* Used to track dynamic relocations for local symbols. */ |
| 3923 | struct ppc_dyn_relocs | |
| 3924 | { | |
| 3925 | struct ppc_dyn_relocs *next; | |
| 3926 | ||
| 3927 | /* The input section of the reloc. */ | |
| 3928 | asection *sec; | |
| 3929 | ||
| 3930 | /* Total number of relocs copied for the input section. */ | |
| 3931 | unsigned int count : 31; | |
| 3932 | ||
| 3933 | /* Whether this entry is for STT_GNU_IFUNC symbols. */ | |
| 3934 | unsigned int ifunc : 1; | |
| 3935 | }; | |
| 3936 | ||
| 65f38f15 AM |
3937 | struct ppc_link_hash_entry |
| 3938 | { | |
| 3939 | struct elf_link_hash_entry elf; | |
| 3940 | ||
| b3fac117 AM |
3941 | union { |
| 3942 | /* A pointer to the most recently used stub hash entry against this | |
| 3943 | symbol. */ | |
| 3944 | struct ppc_stub_hash_entry *stub_cache; | |
| 3945 | ||
| 3946 | /* A pointer to the next symbol starting with a '.' */ | |
| 3947 | struct ppc_link_hash_entry *next_dot_sym; | |
| 3948 | } u; | |
| 721956f4 | 3949 | |
| 65f38f15 | 3950 | /* Track dynamic relocs copied for this symbol. */ |
| 6061a67d | 3951 | struct elf_dyn_relocs *dyn_relocs; |
| e86ce104 | 3952 | |
| 721956f4 | 3953 | /* Link between function code and descriptor symbols. */ |
| 34814b9f | 3954 | struct ppc_link_hash_entry *oh; |
| 721956f4 | 3955 | |
| e86ce104 AM |
3956 | /* Flag function code and descriptor symbols. */ |
| 3957 | unsigned int is_func:1; | |
| 3958 | unsigned int is_func_descriptor:1; | |
| 908b32fc | 3959 | unsigned int fake:1; |
| 411e1bfb | 3960 | |
| c5614fa4 AM |
3961 | /* Whether global opd/toc sym has been adjusted or not. |
| 3962 | After ppc64_elf_edit_opd/ppc64_elf_edit_toc has run, this flag | |
| 3963 | should be set for all globals defined in any opd/toc section. */ | |
| 754021d0 AM |
3964 | unsigned int adjust_done:1; |
| 3965 | ||
| 99877b66 AM |
3966 | /* Set if we twiddled this symbol to weak at some stage. */ |
| 3967 | unsigned int was_undefined:1; | |
| 3968 | ||
| a4b6fadd AM |
3969 | /* Set if this is an out-of-line register save/restore function, |
| 3970 | with non-standard calling convention. */ | |
| 3971 | unsigned int save_res:1; | |
| 3972 | ||
| 411e1bfb | 3973 | /* Contexts in which symbol is used in the GOT (or TOC). |
| e7b938ca AM |
3974 | TLS_GD .. TLS_EXPLICIT bits are or'd into the mask as the |
| 3975 | corresponding relocs are encountered during check_relocs. | |
| 3976 | tls_optimize clears TLS_GD .. TLS_TPREL when optimizing to | |
| 3977 | indicate the corresponding GOT entry type is not needed. | |
| 3978 | tls_optimize may also set TLS_TPRELGD when a GD reloc turns into | |
| 3979 | a TPREL one. We use a separate flag rather than setting TPREL | |
| 3980 | just for convenience in distinguishing the two cases. */ | |
| 3981 | #define TLS_GD 1 /* GD reloc. */ | |
| 3982 | #define TLS_LD 2 /* LD reloc. */ | |
| 3983 | #define TLS_TPREL 4 /* TPREL reloc, => IE. */ | |
| 3984 | #define TLS_DTPREL 8 /* DTPREL reloc, => LD. */ | |
| 3985 | #define TLS_TLS 16 /* Any TLS reloc. */ | |
| 3986 | #define TLS_EXPLICIT 32 /* Marks TOC section TLS relocs. */ | |
| 3987 | #define TLS_TPRELGD 64 /* TPREL reloc resulting from GD->IE. */ | |
| e054468f | 3988 | #define PLT_IFUNC 128 /* STT_GNU_IFUNC. */ |
| f961d9dd | 3989 | unsigned char tls_mask; |
| 65f38f15 AM |
3990 | }; |
| 3991 | ||
| 3992 | /* ppc64 ELF linker hash table. */ | |
| 3993 | ||
| 3994 | struct ppc_link_hash_table | |
| 3995 | { | |
| 3996 | struct elf_link_hash_table elf; | |
| 3997 | ||
| 721956f4 AM |
3998 | /* The stub hash table. */ |
| 3999 | struct bfd_hash_table stub_hash_table; | |
| 4000 | ||
| 4001 | /* Another hash table for plt_branch stubs. */ | |
| 4002 | struct bfd_hash_table branch_hash_table; | |
| 4003 | ||
| 3b421ab3 AM |
4004 | /* Hash table for function prologue tocsave. */ |
| 4005 | htab_t tocsave_htab; | |
| 4006 | ||
| e7d1c40c AM |
4007 | /* Various options and other info passed from the linker. */ |
| 4008 | struct ppc64_elf_params *params; | |
| 721956f4 | 4009 | |
| 6f20ed8a AM |
4010 | /* The size of sec_info below. */ |
| 4011 | unsigned int sec_info_arr_size; | |
| 4012 | ||
| 4013 | /* Per-section array of extra section info. Done this way rather | |
| 4014 | than as part of ppc64_elf_section_data so we have the info for | |
| 4015 | non-ppc64 sections. */ | |
| 4016 | struct | |
| 4017 | { | |
| 4018 | /* Along with elf_gp, specifies the TOC pointer used by this section. */ | |
| ad8e1ba5 | 4019 | bfd_vma toc_off; |
| 6f20ed8a AM |
4020 | |
| 4021 | union | |
| 4022 | { | |
| 4023 | /* The section group that this section belongs to. */ | |
| 4024 | struct map_stub *group; | |
| 4025 | /* A temp section list pointer. */ | |
| 4026 | asection *list; | |
| 4027 | } u; | |
| 4028 | } *sec_info; | |
| 721956f4 | 4029 | |
| a4b6fadd AM |
4030 | /* Linked list of groups. */ |
| 4031 | struct map_stub *group; | |
| 4032 | ||
| ad8e1ba5 AM |
4033 | /* Temp used when calculating TOC pointers. */ |
| 4034 | bfd_vma toc_curr; | |
| bf102f86 AM |
4035 | bfd *toc_bfd; |
| 4036 | asection *toc_first_sec; | |
| ad8e1ba5 | 4037 | |
| b3fac117 AM |
4038 | /* Used when adding symbols. */ |
| 4039 | struct ppc_link_hash_entry *dot_syms; | |
| 4040 | ||
| 33e44f2e | 4041 | /* Shortcuts to get to dynamic linker sections. */ |
| 4ce794b7 AM |
4042 | asection *dynbss; |
| 4043 | asection *relbss; | |
| 4044 | asection *glink; | |
| 82bd7b59 | 4045 | asection *sfpr; |
| 4ce794b7 AM |
4046 | asection *brlt; |
| 4047 | asection *relbrlt; | |
| 58d180e8 | 4048 | asection *glink_eh_frame; |
| ec338859 | 4049 | |
| 8387904d AM |
4050 | /* Shortcut to .__tls_get_addr and __tls_get_addr. */ |
| 4051 | struct ppc_link_hash_entry *tls_get_addr; | |
| 4052 | struct ppc_link_hash_entry *tls_get_addr_fd; | |
| 411e1bfb | 4053 | |
| 927be08e AM |
4054 | /* The size of reliplt used by got entry relocs. */ |
| 4055 | bfd_size_type got_reli_size; | |
| 4056 | ||
| 9b5ecbd0 | 4057 | /* Statistics. */ |
| 7341d5e2 | 4058 | unsigned long stub_count[ppc_stub_global_entry]; |
| 9b5ecbd0 | 4059 | |
| ee75fd95 AM |
4060 | /* Number of stubs against global syms. */ |
| 4061 | unsigned long stub_globals; | |
| 4062 | ||
| ee67d69a AM |
4063 | /* Set if we're linking code with function descriptors. */ |
| 4064 | unsigned int opd_abi:1; | |
| 4065 | ||
| 4c52953f | 4066 | /* Support for multiple toc sections. */ |
| 33c0ec9d | 4067 | unsigned int do_multi_toc:1; |
| 4c52953f | 4068 | unsigned int multi_toc_needed:1; |
| 927be08e | 4069 | unsigned int second_toc_pass:1; |
| 67f0cbdb | 4070 | unsigned int do_toc_opt:1; |
| 4c52953f | 4071 | |
| 5d1634d7 | 4072 | /* Set on error. */ |
| 99877b66 | 4073 | unsigned int stub_error:1; |
| 721956f4 | 4074 | |
| f6c7c3e8 | 4075 | /* Temp used by ppc64_elf_before_check_relocs. */ |
| 99877b66 | 4076 | unsigned int twiddled_syms:1; |
| 721956f4 AM |
4077 | |
| 4078 | /* Incremented every time we size stubs. */ | |
| 4079 | unsigned int stub_iteration; | |
| 5d1634d7 | 4080 | |
| 87d72d41 AM |
4081 | /* Small local sym cache. */ |
| 4082 | struct sym_cache sym_cache; | |
| 65f38f15 AM |
4083 | }; |
| 4084 | ||
| 4c52953f AM |
4085 | /* Rename some of the generic section flags to better document how they |
| 4086 | are used here. */ | |
| b0dddeec AM |
4087 | |
| 4088 | /* Nonzero if this section has TLS related relocations. */ | |
| 4089 | #define has_tls_reloc sec_flg0 | |
| 4090 | ||
| 4091 | /* Nonzero if this section has a call to __tls_get_addr. */ | |
| 4092 | #define has_tls_get_addr_call sec_flg1 | |
| 4093 | ||
| 4094 | /* Nonzero if this section has any toc or got relocs. */ | |
| 4095 | #define has_toc_reloc sec_flg2 | |
| 4096 | ||
| 4097 | /* Nonzero if this section has a call to another section that uses | |
| 4098 | the toc or got. */ | |
| d77c8a4b | 4099 | #define makes_toc_func_call sec_flg3 |
| b0dddeec AM |
4100 | |
| 4101 | /* Recursion protection when determining above flag. */ | |
| d77c8a4b | 4102 | #define call_check_in_progress sec_flg4 |
| 70cc837d | 4103 | #define call_check_done sec_flg5 |
| 4c52953f | 4104 | |
| 65f38f15 AM |
4105 | /* Get the ppc64 ELF linker hash table from a link_info structure. */ |
| 4106 | ||
| 4107 | #define ppc_hash_table(p) \ | |
| 4dfe6ac6 NC |
4108 | (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ |
| 4109 | == PPC64_ELF_DATA ? ((struct ppc_link_hash_table *) ((p)->hash)) : NULL) | |
| 65f38f15 | 4110 | |
| 721956f4 AM |
4111 | #define ppc_stub_hash_lookup(table, string, create, copy) \ |
| 4112 | ((struct ppc_stub_hash_entry *) \ | |
| 4113 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4114 | ||
| 4115 | #define ppc_branch_hash_lookup(table, string, create, copy) \ | |
| 4116 | ((struct ppc_branch_hash_entry *) \ | |
| 4117 | bfd_hash_lookup ((table), (string), (create), (copy))) | |
| 4118 | ||
| 4119 | /* Create an entry in the stub hash table. */ | |
| 4120 | ||
| 4121 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4122 | stub_hash_newfunc (struct bfd_hash_entry *entry, |
| 4123 | struct bfd_hash_table *table, | |
| 4124 | const char *string) | |
| 721956f4 AM |
4125 | { |
| 4126 | /* Allocate the structure if it has not already been allocated by a | |
| 4127 | subclass. */ | |
| 4128 | if (entry == NULL) | |
| 4129 | { | |
| 4130 | entry = bfd_hash_allocate (table, sizeof (struct ppc_stub_hash_entry)); | |
| 4131 | if (entry == NULL) | |
| 4132 | return entry; | |
| 4133 | } | |
| 4134 | ||
| 4135 | /* Call the allocation method of the superclass. */ | |
| 4136 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4137 | if (entry != NULL) | |
| 4138 | { | |
| 4139 | struct ppc_stub_hash_entry *eh; | |
| 4140 | ||
| 4141 | /* Initialize the local fields. */ | |
| 4142 | eh = (struct ppc_stub_hash_entry *) entry; | |
| ad8e1ba5 | 4143 | eh->stub_type = ppc_stub_none; |
| 6f20ed8a | 4144 | eh->group = NULL; |
| 721956f4 AM |
4145 | eh->stub_offset = 0; |
| 4146 | eh->target_value = 0; | |
| 4147 | eh->target_section = NULL; | |
| 721956f4 | 4148 | eh->h = NULL; |
| 6911b7dc | 4149 | eh->plt_ent = NULL; |
| 6911b7dc | 4150 | eh->other = 0; |
| 721956f4 AM |
4151 | } |
| 4152 | ||
| 4153 | return entry; | |
| 4154 | } | |
| 4155 | ||
| 4156 | /* Create an entry in the branch hash table. */ | |
| 4157 | ||
| 4158 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4159 | branch_hash_newfunc (struct bfd_hash_entry *entry, |
| 4160 | struct bfd_hash_table *table, | |
| 4161 | const char *string) | |
| 721956f4 AM |
4162 | { |
| 4163 | /* Allocate the structure if it has not already been allocated by a | |
| 4164 | subclass. */ | |
| 4165 | if (entry == NULL) | |
| 4166 | { | |
| 4167 | entry = bfd_hash_allocate (table, sizeof (struct ppc_branch_hash_entry)); | |
| 4168 | if (entry == NULL) | |
| 4169 | return entry; | |
| 4170 | } | |
| 4171 | ||
| 4172 | /* Call the allocation method of the superclass. */ | |
| 4173 | entry = bfd_hash_newfunc (entry, table, string); | |
| 4174 | if (entry != NULL) | |
| 4175 | { | |
| 4176 | struct ppc_branch_hash_entry *eh; | |
| 4177 | ||
| 4178 | /* Initialize the local fields. */ | |
| 4179 | eh = (struct ppc_branch_hash_entry *) entry; | |
| 4180 | eh->offset = 0; | |
| 4181 | eh->iter = 0; | |
| 4182 | } | |
| 4183 | ||
| 4184 | return entry; | |
| 4185 | } | |
| 4186 | ||
| 65f38f15 AM |
4187 | /* Create an entry in a ppc64 ELF linker hash table. */ |
| 4188 | ||
| 4189 | static struct bfd_hash_entry * | |
| 4ce794b7 AM |
4190 | link_hash_newfunc (struct bfd_hash_entry *entry, |
| 4191 | struct bfd_hash_table *table, | |
| 4192 | const char *string) | |
| 65f38f15 AM |
4193 | { |
| 4194 | /* Allocate the structure if it has not already been allocated by a | |
| 4195 | subclass. */ | |
| 4196 | if (entry == NULL) | |
| 4197 | { | |
| 4198 | entry = bfd_hash_allocate (table, sizeof (struct ppc_link_hash_entry)); | |
| 4199 | if (entry == NULL) | |
| 4200 | return entry; | |
| 4201 | } | |
| 4202 | ||
| 4203 | /* Call the allocation method of the superclass. */ | |
| 4204 | entry = _bfd_elf_link_hash_newfunc (entry, table, string); | |
| 4205 | if (entry != NULL) | |
| 4206 | { | |
| 4207 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) entry; | |
| 4208 | ||
| b3fac117 | 4209 | memset (&eh->u.stub_cache, 0, |
| 908b32fc | 4210 | (sizeof (struct ppc_link_hash_entry) |
| b3fac117 AM |
4211 | - offsetof (struct ppc_link_hash_entry, u.stub_cache))); |
| 4212 | ||
| 4213 | /* When making function calls, old ABI code references function entry | |
| 4214 | points (dot symbols), while new ABI code references the function | |
| 4215 | descriptor symbol. We need to make any combination of reference and | |
| 4216 | definition work together, without breaking archive linking. | |
| 4217 | ||
| 4218 | For a defined function "foo" and an undefined call to "bar": | |
| 4219 | An old object defines "foo" and ".foo", references ".bar" (possibly | |
| 4220 | "bar" too). | |
| 4221 | A new object defines "foo" and references "bar". | |
| 4222 | ||
| 4223 | A new object thus has no problem with its undefined symbols being | |
| 4224 | satisfied by definitions in an old object. On the other hand, the | |
| 4225 | old object won't have ".bar" satisfied by a new object. | |
| 4226 | ||
| 4227 | Keep a list of newly added dot-symbols. */ | |
| 4228 | ||
| 4229 | if (string[0] == '.') | |
| 4230 | { | |
| 4231 | struct ppc_link_hash_table *htab; | |
| 4232 | ||
| 4233 | htab = (struct ppc_link_hash_table *) table; | |
| 4234 | eh->u.next_dot_sym = htab->dot_syms; | |
| 4235 | htab->dot_syms = eh; | |
| 4236 | } | |
| 65f38f15 AM |
4237 | } |
| 4238 | ||
| 4239 | return entry; | |
| 4240 | } | |
| 4241 | ||
| 3b421ab3 AM |
4242 | struct tocsave_entry { |
| 4243 | asection *sec; | |
| 4244 | bfd_vma offset; | |
| 4245 | }; | |
| 4246 | ||
| 4247 | static hashval_t | |
| 4248 | tocsave_htab_hash (const void *p) | |
| 4249 | { | |
| 4250 | const struct tocsave_entry *e = (const struct tocsave_entry *) p; | |
| 4251 | return ((bfd_vma)(intptr_t) e->sec ^ e->offset) >> 3; | |
| 4252 | } | |
| 4253 | ||
| 4254 | static int | |
| 4255 | tocsave_htab_eq (const void *p1, const void *p2) | |
| 4256 | { | |
| 4257 | const struct tocsave_entry *e1 = (const struct tocsave_entry *) p1; | |
| 4258 | const struct tocsave_entry *e2 = (const struct tocsave_entry *) p2; | |
| 4259 | return e1->sec == e2->sec && e1->offset == e2->offset; | |
| 4260 | } | |
| 4261 | ||
| 68faa637 AM |
4262 | /* Destroy a ppc64 ELF linker hash table. */ |
| 4263 | ||
| 4264 | static void | |
| d495ab0d | 4265 | ppc64_elf_link_hash_table_free (bfd *obfd) |
| 68faa637 | 4266 | { |
| d495ab0d | 4267 | struct ppc_link_hash_table *htab; |
| 68faa637 | 4268 | |
| d495ab0d | 4269 | htab = (struct ppc_link_hash_table *) obfd->link.hash; |
| 68faa637 AM |
4270 | if (htab->tocsave_htab) |
| 4271 | htab_delete (htab->tocsave_htab); | |
| d495ab0d AM |
4272 | bfd_hash_table_free (&htab->branch_hash_table); |
| 4273 | bfd_hash_table_free (&htab->stub_hash_table); | |
| 4274 | _bfd_elf_link_hash_table_free (obfd); | |
| 68faa637 AM |
4275 | } |
| 4276 | ||
| 65f38f15 AM |
4277 | /* Create a ppc64 ELF linker hash table. */ |
| 4278 | ||
| 4279 | static struct bfd_link_hash_table * | |
| 4ce794b7 | 4280 | ppc64_elf_link_hash_table_create (bfd *abfd) |
| 65f38f15 AM |
4281 | { |
| 4282 | struct ppc_link_hash_table *htab; | |
| 4283 | bfd_size_type amt = sizeof (struct ppc_link_hash_table); | |
| 4284 | ||
| 4ce794b7 | 4285 | htab = bfd_zmalloc (amt); |
| 65f38f15 AM |
4286 | if (htab == NULL) |
| 4287 | return NULL; | |
| 4288 | ||
| 66eb6687 | 4289 | if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, link_hash_newfunc, |
| 4dfe6ac6 NC |
4290 | sizeof (struct ppc_link_hash_entry), |
| 4291 | PPC64_ELF_DATA)) | |
| 65f38f15 | 4292 | { |
| e2d34d7d | 4293 | free (htab); |
| 65f38f15 AM |
4294 | return NULL; |
| 4295 | } | |
| 4296 | ||
| 721956f4 | 4297 | /* Init the stub hash table too. */ |
| 66eb6687 AM |
4298 | if (!bfd_hash_table_init (&htab->stub_hash_table, stub_hash_newfunc, |
| 4299 | sizeof (struct ppc_stub_hash_entry))) | |
| 2915c55b | 4300 | { |
| d495ab0d | 4301 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4302 | return NULL; |
| 4303 | } | |
| 721956f4 AM |
4304 | |
| 4305 | /* And the branch hash table. */ | |
| 66eb6687 AM |
4306 | if (!bfd_hash_table_init (&htab->branch_hash_table, branch_hash_newfunc, |
| 4307 | sizeof (struct ppc_branch_hash_entry))) | |
| 2915c55b JK |
4308 | { |
| 4309 | bfd_hash_table_free (&htab->stub_hash_table); | |
| d495ab0d | 4310 | _bfd_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4311 | return NULL; |
| 4312 | } | |
| 721956f4 | 4313 | |
| 3b421ab3 AM |
4314 | htab->tocsave_htab = htab_try_create (1024, |
| 4315 | tocsave_htab_hash, | |
| 4316 | tocsave_htab_eq, | |
| 4317 | NULL); | |
| 4318 | if (htab->tocsave_htab == NULL) | |
| 2915c55b | 4319 | { |
| d495ab0d | 4320 | ppc64_elf_link_hash_table_free (abfd); |
| 2915c55b JK |
4321 | return NULL; |
| 4322 | } | |
| d495ab0d | 4323 | htab->elf.root.hash_table_free = ppc64_elf_link_hash_table_free; |
| 3b421ab3 | 4324 | |
| 3254fd24 AM |
4325 | /* Initializing two fields of the union is just cosmetic. We really |
| 4326 | only care about glist, but when compiled on a 32-bit host the | |
| 4327 | bfd_vma fields are larger. Setting the bfd_vma to zero makes | |
| 4328 | debugger inspection of these fields look nicer. */ | |
| a6aa5195 AM |
4329 | htab->elf.init_got_refcount.refcount = 0; |
| 4330 | htab->elf.init_got_refcount.glist = NULL; | |
| 4331 | htab->elf.init_plt_refcount.refcount = 0; | |
| 4332 | htab->elf.init_plt_refcount.glist = NULL; | |
| 4333 | htab->elf.init_got_offset.offset = 0; | |
| 4334 | htab->elf.init_got_offset.glist = NULL; | |
| 4335 | htab->elf.init_plt_offset.offset = 0; | |
| 4336 | htab->elf.init_plt_offset.glist = NULL; | |
| 3254fd24 | 4337 | |
| 65f38f15 AM |
4338 | return &htab->elf.root; |
| 4339 | } | |
| 4340 | ||
| bfeb4a28 AM |
4341 | /* Create sections for linker generated code. */ |
| 4342 | ||
| 4343 | static bfd_boolean | |
| 4344 | create_linkage_sections (bfd *dynobj, struct bfd_link_info *info) | |
| 4345 | { | |
| 4346 | struct ppc_link_hash_table *htab; | |
| 4347 | flagword flags; | |
| 4348 | ||
| 4349 | htab = ppc_hash_table (info); | |
| 4350 | ||
| bfeb4a28 AM |
4351 | flags = (SEC_ALLOC | SEC_LOAD | SEC_CODE | SEC_READONLY |
| 4352 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| b32547cd AM |
4353 | if (htab->params->save_restore_funcs) |
| 4354 | { | |
| 4355 | /* Create .sfpr for code to save and restore fp regs. */ | |
| 4356 | htab->sfpr = bfd_make_section_anyway_with_flags (dynobj, ".sfpr", | |
| 4357 | flags); | |
| 4358 | if (htab->sfpr == NULL | |
| 4359 | || ! bfd_set_section_alignment (dynobj, htab->sfpr, 2)) | |
| 4360 | return FALSE; | |
| 4361 | } | |
| 4362 | ||
| 4363 | if (bfd_link_relocatable (info)) | |
| 4364 | return TRUE; | |
| bfeb4a28 AM |
4365 | |
| 4366 | /* Create .glink for lazy dynamic linking support. */ | |
| 4367 | htab->glink = bfd_make_section_anyway_with_flags (dynobj, ".glink", | |
| 4368 | flags); | |
| 4369 | if (htab->glink == NULL | |
| 4370 | || ! bfd_set_section_alignment (dynobj, htab->glink, 3)) | |
| 4371 | return FALSE; | |
| 4372 | ||
| 4373 | if (!info->no_ld_generated_unwind_info) | |
| 4374 | { | |
| 4375 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | SEC_HAS_CONTENTS | |
| 4376 | | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4377 | htab->glink_eh_frame = bfd_make_section_anyway_with_flags (dynobj, | |
| 4378 | ".eh_frame", | |
| 4379 | flags); | |
| 4380 | if (htab->glink_eh_frame == NULL | |
| 4381 | || !bfd_set_section_alignment (dynobj, htab->glink_eh_frame, 2)) | |
| 4382 | return FALSE; | |
| 4383 | } | |
| 4384 | ||
| 4385 | flags = SEC_ALLOC | SEC_LINKER_CREATED; | |
| 33e44f2e AM |
4386 | htab->elf.iplt = bfd_make_section_anyway_with_flags (dynobj, ".iplt", flags); |
| 4387 | if (htab->elf.iplt == NULL | |
| 4388 | || ! bfd_set_section_alignment (dynobj, htab->elf.iplt, 3)) | |
| bfeb4a28 AM |
4389 | return FALSE; |
| 4390 | ||
| 4391 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4392 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 33e44f2e AM |
4393 | htab->elf.irelplt |
| 4394 | = bfd_make_section_anyway_with_flags (dynobj, ".rela.iplt", flags); | |
| 4395 | if (htab->elf.irelplt == NULL | |
| 4396 | || ! bfd_set_section_alignment (dynobj, htab->elf.irelplt, 3)) | |
| bfeb4a28 AM |
4397 | return FALSE; |
| 4398 | ||
| 4399 | /* Create branch lookup table for plt_branch stubs. */ | |
| 4400 | flags = (SEC_ALLOC | SEC_LOAD | |
| 4401 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4402 | htab->brlt = bfd_make_section_anyway_with_flags (dynobj, ".branch_lt", | |
| 4403 | flags); | |
| 4404 | if (htab->brlt == NULL | |
| 4405 | || ! bfd_set_section_alignment (dynobj, htab->brlt, 3)) | |
| 4406 | return FALSE; | |
| 4407 | ||
| 0e1862bb | 4408 | if (!bfd_link_pic (info)) |
| bfeb4a28 AM |
4409 | return TRUE; |
| 4410 | ||
| 4411 | flags = (SEC_ALLOC | SEC_LOAD | SEC_READONLY | |
| 4412 | | SEC_HAS_CONTENTS | SEC_IN_MEMORY | SEC_LINKER_CREATED); | |
| 4413 | htab->relbrlt = bfd_make_section_anyway_with_flags (dynobj, | |
| 4414 | ".rela.branch_lt", | |
| 4415 | flags); | |
| 4416 | if (htab->relbrlt == NULL | |
| 4417 | || ! bfd_set_section_alignment (dynobj, htab->relbrlt, 3)) | |
| 4418 | return FALSE; | |
| 4419 | ||
| 4420 | return TRUE; | |
| 4421 | } | |
| 4422 | ||
| e717da7e AM |
4423 | /* Satisfy the ELF linker by filling in some fields in our fake bfd. */ |
| 4424 | ||
| bfeb4a28 | 4425 | bfd_boolean |
| e7d1c40c AM |
4426 | ppc64_elf_init_stub_bfd (struct bfd_link_info *info, |
| 4427 | struct ppc64_elf_params *params) | |
| e717da7e AM |
4428 | { |
| 4429 | struct ppc_link_hash_table *htab; | |
| 4430 | ||
| e7d1c40c | 4431 | elf_elfheader (params->stub_bfd)->e_ident[EI_CLASS] = ELFCLASS64; |
| e717da7e AM |
4432 | |
| 4433 | /* Always hook our dynamic sections into the first bfd, which is the | |
| 4434 | linker created stub bfd. This ensures that the GOT header is at | |
| 4435 | the start of the output TOC section. */ | |
| 4436 | htab = ppc_hash_table (info); | |
| e7d1c40c AM |
4437 | htab->elf.dynobj = params->stub_bfd; |
| 4438 | htab->params = params; | |
| bfeb4a28 | 4439 | |
| bfeb4a28 | 4440 | return create_linkage_sections (htab->elf.dynobj, info); |
| e717da7e AM |
4441 | } |
| 4442 | ||
| 721956f4 AM |
4443 | /* Build a name for an entry in the stub hash table. */ |
| 4444 | ||
| 4445 | static char * | |
| 4ce794b7 AM |
4446 | ppc_stub_name (const asection *input_section, |
| 4447 | const asection *sym_sec, | |
| 4448 | const struct ppc_link_hash_entry *h, | |
| 4449 | const Elf_Internal_Rela *rel) | |
| 721956f4 AM |
4450 | { |
| 4451 | char *stub_name; | |
| bcaa2f82 | 4452 | ssize_t len; |
| 721956f4 AM |
4453 | |
| 4454 | /* rel->r_addend is actually 64 bit, but who uses more than +/- 2^31 | |
| 4455 | offsets from a sym as a branch target? In fact, we could | |
| 4456 | probably assume the addend is always zero. */ | |
| 4457 | BFD_ASSERT (((int) rel->r_addend & 0xffffffff) == rel->r_addend); | |
| 4458 | ||
| 4459 | if (h) | |
| 4460 | { | |
| 4461 | len = 8 + 1 + strlen (h->elf.root.root.string) + 1 + 8 + 1; | |
| 4462 | stub_name = bfd_malloc (len); | |
| 46de2a7c AM |
4463 | if (stub_name == NULL) |
| 4464 | return stub_name; | |
| 4465 | ||
| bcaa2f82 AM |
4466 | len = sprintf (stub_name, "%08x.%s+%x", |
| 4467 | input_section->id & 0xffffffff, | |
| 4468 | h->elf.root.root.string, | |
| 4469 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 AM |
4470 | } |
| 4471 | else | |
| 4472 | { | |
| ad8e1ba5 | 4473 | len = 8 + 1 + 8 + 1 + 8 + 1 + 8 + 1; |
| 721956f4 | 4474 | stub_name = bfd_malloc (len); |
| 46de2a7c AM |
4475 | if (stub_name == NULL) |
| 4476 | return stub_name; | |
| 4477 | ||
| bcaa2f82 AM |
4478 | len = sprintf (stub_name, "%08x.%x:%x+%x", |
| 4479 | input_section->id & 0xffffffff, | |
| 4480 | sym_sec->id & 0xffffffff, | |
| 4481 | (int) ELF64_R_SYM (rel->r_info) & 0xffffffff, | |
| 4482 | (int) rel->r_addend & 0xffffffff); | |
| 721956f4 | 4483 | } |
| bcaa2f82 | 4484 | if (len > 2 && stub_name[len - 2] == '+' && stub_name[len - 1] == '0') |
| ee75fd95 | 4485 | stub_name[len - 2] = 0; |
| 721956f4 AM |
4486 | return stub_name; |
| 4487 | } | |
| 4488 | ||
| 4489 | /* Look up an entry in the stub hash. Stub entries are cached because | |
| 4490 | creating the stub name takes a bit of time. */ | |
| 4491 | ||
| 4492 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4493 | ppc_get_stub_entry (const asection *input_section, |
| 4494 | const asection *sym_sec, | |
| 039b3fef | 4495 | struct ppc_link_hash_entry *h, |
| 4ce794b7 AM |
4496 | const Elf_Internal_Rela *rel, |
| 4497 | struct ppc_link_hash_table *htab) | |
| 721956f4 AM |
4498 | { |
| 4499 | struct ppc_stub_hash_entry *stub_entry; | |
| 6f20ed8a | 4500 | struct map_stub *group; |
| 721956f4 AM |
4501 | |
| 4502 | /* If this input section is part of a group of sections sharing one | |
| 4503 | stub section, then use the id of the first section in the group. | |
| 4504 | Stub names need to include a section id, as there may well be | |
| 4505 | more than one stub used to reach say, printf, and we need to | |
| 4506 | distinguish between them. */ | |
| 6f20ed8a | 4507 | group = htab->sec_info[input_section->id].u.group; |
| 721956f4 | 4508 | |
| b3fac117 AM |
4509 | if (h != NULL && h->u.stub_cache != NULL |
| 4510 | && h->u.stub_cache->h == h | |
| 6f20ed8a | 4511 | && h->u.stub_cache->group == group) |
| 721956f4 | 4512 | { |
| b3fac117 | 4513 | stub_entry = h->u.stub_cache; |
| 721956f4 AM |
4514 | } |
| 4515 | else | |
| 4516 | { | |
| 4517 | char *stub_name; | |
| 4518 | ||
| 6f20ed8a | 4519 | stub_name = ppc_stub_name (group->link_sec, sym_sec, h, rel); |
| 721956f4 AM |
4520 | if (stub_name == NULL) |
| 4521 | return NULL; | |
| 4522 | ||
| 4523 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 4524 | stub_name, FALSE, FALSE); |
| 721956f4 | 4525 | if (h != NULL) |
| b3fac117 | 4526 | h->u.stub_cache = stub_entry; |
| 721956f4 AM |
4527 | |
| 4528 | free (stub_name); | |
| 4529 | } | |
| 4530 | ||
| 4531 | return stub_entry; | |
| 4532 | } | |
| 4533 | ||
| 4534 | /* Add a new stub entry to the stub hash. Not all fields of the new | |
| 4535 | stub entry are initialised. */ | |
| 4536 | ||
| 4537 | static struct ppc_stub_hash_entry * | |
| 4ce794b7 AM |
4538 | ppc_add_stub (const char *stub_name, |
| 4539 | asection *section, | |
| 25f53a85 | 4540 | struct bfd_link_info *info) |
| 721956f4 | 4541 | { |
| 25f53a85 | 4542 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 4543 | struct map_stub *group; |
| 721956f4 AM |
4544 | asection *link_sec; |
| 4545 | asection *stub_sec; | |
| 4546 | struct ppc_stub_hash_entry *stub_entry; | |
| 4547 | ||
| 6f20ed8a AM |
4548 | group = htab->sec_info[section->id].u.group; |
| 4549 | link_sec = group->link_sec; | |
| 4550 | stub_sec = group->stub_sec; | |
| 721956f4 AM |
4551 | if (stub_sec == NULL) |
| 4552 | { | |
| 6f20ed8a AM |
4553 | size_t namelen; |
| 4554 | bfd_size_type len; | |
| 4555 | char *s_name; | |
| 721956f4 | 4556 | |
| 6f20ed8a AM |
4557 | namelen = strlen (link_sec->name); |
| 4558 | len = namelen + sizeof (STUB_SUFFIX); | |
| 4559 | s_name = bfd_alloc (htab->params->stub_bfd, len); | |
| 4560 | if (s_name == NULL) | |
| 4561 | return NULL; | |
| 721956f4 | 4562 | |
| 6f20ed8a AM |
4563 | memcpy (s_name, link_sec->name, namelen); |
| 4564 | memcpy (s_name + namelen, STUB_SUFFIX, sizeof (STUB_SUFFIX)); | |
| 4565 | stub_sec = (*htab->params->add_stub_section) (s_name, link_sec); | |
| 4566 | if (stub_sec == NULL) | |
| 4567 | return NULL; | |
| 4568 | group->stub_sec = stub_sec; | |
| 721956f4 AM |
4569 | } |
| 4570 | ||
| 4571 | /* Enter this entry into the linker stub hash table. */ | |
| 4572 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, stub_name, | |
| b34976b6 | 4573 | TRUE, FALSE); |
| 721956f4 AM |
4574 | if (stub_entry == NULL) |
| 4575 | { | |
| 8de848d8 | 4576 | info->callbacks->einfo (_("%P: %B: cannot create stub entry %s\n"), |
| 25f53a85 | 4577 | section->owner, stub_name); |
| 721956f4 AM |
4578 | return NULL; |
| 4579 | } | |
| 4580 | ||
| 6f20ed8a | 4581 | stub_entry->group = group; |
| 721956f4 | 4582 | stub_entry->stub_offset = 0; |
| 721956f4 AM |
4583 | return stub_entry; |
| 4584 | } | |
| 4585 | ||
| e717da7e AM |
4586 | /* Create .got and .rela.got sections in ABFD, and .got in dynobj if |
| 4587 | not already done. */ | |
| 65f38f15 | 4588 | |
| b34976b6 | 4589 | static bfd_boolean |
| e717da7e | 4590 | create_got_section (bfd *abfd, struct bfd_link_info *info) |
| 65f38f15 | 4591 | { |
| e717da7e AM |
4592 | asection *got, *relgot; |
| 4593 | flagword flags; | |
| 4594 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 65f38f15 | 4595 | |
| 0c8d6e5c | 4596 | if (!is_ppc64_elf (abfd)) |
| 0ffa91dd | 4597 | return FALSE; |
| 4dfe6ac6 NC |
4598 | if (htab == NULL) |
| 4599 | return FALSE; | |
| 0ffa91dd | 4600 | |
| 33e44f2e AM |
4601 | if (!htab->elf.sgot |
| 4602 | && !_bfd_elf_create_got_section (htab->elf.dynobj, info)) | |
| 4603 | return FALSE; | |
| e717da7e AM |
4604 | |
| 4605 | flags = (SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY | |
| 4606 | | SEC_LINKER_CREATED); | |
| 4607 | ||
| c456f082 | 4608 | got = bfd_make_section_anyway_with_flags (abfd, ".got", flags); |
| e717da7e | 4609 | if (!got |
| e717da7e AM |
4610 | || !bfd_set_section_alignment (abfd, got, 3)) |
| 4611 | return FALSE; | |
| 65f38f15 | 4612 | |
| c456f082 AM |
4613 | relgot = bfd_make_section_anyway_with_flags (abfd, ".rela.got", |
| 4614 | flags | SEC_READONLY); | |
| e717da7e | 4615 | if (!relgot |
| e717da7e | 4616 | || ! bfd_set_section_alignment (abfd, relgot, 3)) |
| b34976b6 | 4617 | return FALSE; |
| e717da7e AM |
4618 | |
| 4619 | ppc64_elf_tdata (abfd)->got = got; | |
| 4620 | ppc64_elf_tdata (abfd)->relgot = relgot; | |
| b34976b6 | 4621 | return TRUE; |
| 65f38f15 | 4622 | } |
| 5bd4f169 | 4623 | |
| 82bd7b59 | 4624 | /* Create the dynamic sections, and set up shortcuts. */ |
| 5bd4f169 | 4625 | |
| b34976b6 | 4626 | static bfd_boolean |
| 4ce794b7 | 4627 | ppc64_elf_create_dynamic_sections (bfd *dynobj, struct bfd_link_info *info) |
| 5bd4f169 | 4628 | { |
| 65f38f15 | 4629 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 4630 | |
| 65f38f15 | 4631 | if (!_bfd_elf_create_dynamic_sections (dynobj, info)) |
| b34976b6 | 4632 | return FALSE; |
| 65f38f15 | 4633 | |
| e717da7e | 4634 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
4635 | if (htab == NULL) |
| 4636 | return FALSE; | |
| 4637 | ||
| 3d4d4302 | 4638 | htab->dynbss = bfd_get_linker_section (dynobj, ".dynbss"); |
| 0e1862bb | 4639 | if (!bfd_link_pic (info)) |
| 3d4d4302 | 4640 | htab->relbss = bfd_get_linker_section (dynobj, ".rela.bss"); |
| 65f38f15 | 4641 | |
| 33e44f2e | 4642 | if (!htab->elf.sgot || !htab->elf.splt || !htab->elf.srelplt || !htab->dynbss |
| 0e1862bb | 4643 | || (!bfd_link_pic (info) && !htab->relbss)) |
| 65f38f15 AM |
4644 | abort (); |
| 4645 | ||
| b34976b6 | 4646 | return TRUE; |
| 5bd4f169 AM |
4647 | } |
| 4648 | ||
| b31867b6 AM |
4649 | /* Follow indirect and warning symbol links. */ |
| 4650 | ||
| 4651 | static inline struct bfd_link_hash_entry * | |
| 4652 | follow_link (struct bfd_link_hash_entry *h) | |
| 4653 | { | |
| 4654 | while (h->type == bfd_link_hash_indirect | |
| 4655 | || h->type == bfd_link_hash_warning) | |
| 4656 | h = h->u.i.link; | |
| 4657 | return h; | |
| 4658 | } | |
| 4659 | ||
| 4660 | static inline struct elf_link_hash_entry * | |
| 4661 | elf_follow_link (struct elf_link_hash_entry *h) | |
| 4662 | { | |
| 4663 | return (struct elf_link_hash_entry *) follow_link (&h->root); | |
| 4664 | } | |
| 4665 | ||
| 4666 | static inline struct ppc_link_hash_entry * | |
| 4667 | ppc_follow_link (struct ppc_link_hash_entry *h) | |
| 4668 | { | |
| 4669 | return (struct ppc_link_hash_entry *) follow_link (&h->elf.root); | |
| 4670 | } | |
| 4671 | ||
| 40d16e0b AM |
4672 | /* Merge PLT info on FROM with that on TO. */ |
| 4673 | ||
| 4674 | static void | |
| 4675 | move_plt_plist (struct ppc_link_hash_entry *from, | |
| 4676 | struct ppc_link_hash_entry *to) | |
| 4677 | { | |
| 4678 | if (from->elf.plt.plist != NULL) | |
| 4679 | { | |
| 4680 | if (to->elf.plt.plist != NULL) | |
| 4681 | { | |
| 4682 | struct plt_entry **entp; | |
| 4683 | struct plt_entry *ent; | |
| 4684 | ||
| 4685 | for (entp = &from->elf.plt.plist; (ent = *entp) != NULL; ) | |
| 4686 | { | |
| 4687 | struct plt_entry *dent; | |
| 4688 | ||
| 4689 | for (dent = to->elf.plt.plist; dent != NULL; dent = dent->next) | |
| 4690 | if (dent->addend == ent->addend) | |
| 4691 | { | |
| 4692 | dent->plt.refcount += ent->plt.refcount; | |
| 4693 | *entp = ent->next; | |
| 4694 | break; | |
| 4695 | } | |
| 4696 | if (dent == NULL) | |
| 4697 | entp = &ent->next; | |
| 4698 | } | |
| 4699 | *entp = to->elf.plt.plist; | |
| 4700 | } | |
| 4701 | ||
| 4702 | to->elf.plt.plist = from->elf.plt.plist; | |
| 4703 | from->elf.plt.plist = NULL; | |
| 4704 | } | |
| 4705 | } | |
| 4706 | ||
| 65f38f15 AM |
4707 | /* Copy the extra info we tack onto an elf_link_hash_entry. */ |
| 4708 | ||
| 4709 | static void | |
| fcfa13d2 AM |
4710 | ppc64_elf_copy_indirect_symbol (struct bfd_link_info *info, |
| 4711 | struct elf_link_hash_entry *dir, | |
| 4712 | struct elf_link_hash_entry *ind) | |
| 65f38f15 AM |
4713 | { |
| 4714 | struct ppc_link_hash_entry *edir, *eind; | |
| 4715 | ||
| 4716 | edir = (struct ppc_link_hash_entry *) dir; | |
| 4717 | eind = (struct ppc_link_hash_entry *) ind; | |
| 4718 | ||
| c79d6685 AM |
4719 | edir->is_func |= eind->is_func; |
| 4720 | edir->is_func_descriptor |= eind->is_func_descriptor; | |
| 4721 | edir->tls_mask |= eind->tls_mask; | |
| 4722 | if (eind->oh != NULL) | |
| 4723 | edir->oh = ppc_follow_link (eind->oh); | |
| 4724 | ||
| 4725 | /* If called to transfer flags for a weakdef during processing | |
| 4726 | of elf_adjust_dynamic_symbol, don't copy NON_GOT_REF. | |
| 4727 | We clear it ourselves for ELIMINATE_COPY_RELOCS. */ | |
| 4728 | if (!(ELIMINATE_COPY_RELOCS | |
| 4729 | && eind->elf.root.type != bfd_link_hash_indirect | |
| 4730 | && edir->elf.dynamic_adjusted)) | |
| 4731 | edir->elf.non_got_ref |= eind->elf.non_got_ref; | |
| 4732 | ||
| 4733 | edir->elf.ref_dynamic |= eind->elf.ref_dynamic; | |
| 4734 | edir->elf.ref_regular |= eind->elf.ref_regular; | |
| 4735 | edir->elf.ref_regular_nonweak |= eind->elf.ref_regular_nonweak; | |
| 4736 | edir->elf.needs_plt |= eind->elf.needs_plt; | |
| a345bc8d | 4737 | edir->elf.pointer_equality_needed |= eind->elf.pointer_equality_needed; |
| c79d6685 | 4738 | |
| 411e1bfb | 4739 | /* Copy over any dynamic relocs we may have on the indirect sym. */ |
| bbd7ec4a | 4740 | if (eind->dyn_relocs != NULL) |
| 65f38f15 | 4741 | { |
| bbd7ec4a AM |
4742 | if (edir->dyn_relocs != NULL) |
| 4743 | { | |
| 6061a67d AM |
4744 | struct elf_dyn_relocs **pp; |
| 4745 | struct elf_dyn_relocs *p; | |
| bbd7ec4a | 4746 | |
| fcfa13d2 | 4747 | /* Add reloc counts against the indirect sym to the direct sym |
| bbd7ec4a AM |
4748 | list. Merge any entries against the same section. */ |
| 4749 | for (pp = &eind->dyn_relocs; (p = *pp) != NULL; ) | |
| 4750 | { | |
| 6061a67d | 4751 | struct elf_dyn_relocs *q; |
| bbd7ec4a AM |
4752 | |
| 4753 | for (q = edir->dyn_relocs; q != NULL; q = q->next) | |
| 4754 | if (q->sec == p->sec) | |
| 4755 | { | |
| 4756 | q->pc_count += p->pc_count; | |
| 4757 | q->count += p->count; | |
| 4758 | *pp = p->next; | |
| 4759 | break; | |
| 4760 | } | |
| 4761 | if (q == NULL) | |
| 4762 | pp = &p->next; | |
| 4763 | } | |
| 4764 | *pp = edir->dyn_relocs; | |
| 4765 | } | |
| 4766 | ||
| 65f38f15 AM |
4767 | edir->dyn_relocs = eind->dyn_relocs; |
| 4768 | eind->dyn_relocs = NULL; | |
| 4769 | } | |
| 65f38f15 | 4770 | |
| 68ba6d40 AM |
4771 | /* If we were called to copy over info for a weak sym, that's all. |
| 4772 | You might think dyn_relocs need not be copied over; After all, | |
| 4773 | both syms will be dynamic or both non-dynamic so we're just | |
| 68ffbac6 | 4774 | moving reloc accounting around. However, ELIMINATE_COPY_RELOCS |
| 68ba6d40 AM |
4775 | code in ppc64_elf_adjust_dynamic_symbol needs to check for |
| 4776 | dyn_relocs in read-only sections, and it does so on what is the | |
| 4777 | DIR sym here. */ | |
| 4778 | if (eind->elf.root.type != bfd_link_hash_indirect) | |
| 4779 | return; | |
| 4780 | ||
| 81848ca0 AM |
4781 | /* Copy over got entries that we may have already seen to the |
| 4782 | symbol which just became indirect. */ | |
| 411e1bfb AM |
4783 | if (eind->elf.got.glist != NULL) |
| 4784 | { | |
| 4785 | if (edir->elf.got.glist != NULL) | |
| 4786 | { | |
| 4787 | struct got_entry **entp; | |
| 4788 | struct got_entry *ent; | |
| 4789 | ||
| 4790 | for (entp = &eind->elf.got.glist; (ent = *entp) != NULL; ) | |
| 4791 | { | |
| 4792 | struct got_entry *dent; | |
| 4793 | ||
| 4794 | for (dent = edir->elf.got.glist; dent != NULL; dent = dent->next) | |
| 4795 | if (dent->addend == ent->addend | |
| e717da7e | 4796 | && dent->owner == ent->owner |
| 411e1bfb AM |
4797 | && dent->tls_type == ent->tls_type) |
| 4798 | { | |
| 4799 | dent->got.refcount += ent->got.refcount; | |
| 4800 | *entp = ent->next; | |
| 4801 | break; | |
| 4802 | } | |
| 4803 | if (dent == NULL) | |
| 4804 | entp = &ent->next; | |
| 4805 | } | |
| 4806 | *entp = edir->elf.got.glist; | |
| 4807 | } | |
| 4808 | ||
| 4809 | edir->elf.got.glist = eind->elf.got.glist; | |
| 4810 | eind->elf.got.glist = NULL; | |
| 4811 | } | |
| 4812 | ||
| 4813 | /* And plt entries. */ | |
| 40d16e0b | 4814 | move_plt_plist (eind, edir); |
| 411e1bfb | 4815 | |
| fcfa13d2 | 4816 | if (eind->elf.dynindx != -1) |
| 411e1bfb | 4817 | { |
| fcfa13d2 AM |
4818 | if (edir->elf.dynindx != -1) |
| 4819 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 4820 | edir->elf.dynstr_index); | |
| 411e1bfb AM |
4821 | edir->elf.dynindx = eind->elf.dynindx; |
| 4822 | edir->elf.dynstr_index = eind->elf.dynstr_index; | |
| 4823 | eind->elf.dynindx = -1; | |
| 4824 | eind->elf.dynstr_index = 0; | |
| 4825 | } | |
| 411e1bfb AM |
4826 | } |
| 4827 | ||
| 8387904d AM |
4828 | /* Find the function descriptor hash entry from the given function code |
| 4829 | hash entry FH. Link the entries via their OH fields. */ | |
| 4830 | ||
| 4831 | static struct ppc_link_hash_entry * | |
| b31867b6 | 4832 | lookup_fdh (struct ppc_link_hash_entry *fh, struct ppc_link_hash_table *htab) |
| 8387904d AM |
4833 | { |
| 4834 | struct ppc_link_hash_entry *fdh = fh->oh; | |
| 4835 | ||
| 4836 | if (fdh == NULL) | |
| 4837 | { | |
| 4838 | const char *fd_name = fh->elf.root.root.string + 1; | |
| 4839 | ||
| 4840 | fdh = (struct ppc_link_hash_entry *) | |
| 4841 | elf_link_hash_lookup (&htab->elf, fd_name, FALSE, FALSE, FALSE); | |
| b31867b6 AM |
4842 | if (fdh == NULL) |
| 4843 | return fdh; | |
| 4844 | ||
| 4845 | fdh->is_func_descriptor = 1; | |
| 4846 | fdh->oh = fh; | |
| 4847 | fh->is_func = 1; | |
| 4848 | fh->oh = fdh; | |
| 8387904d AM |
4849 | } |
| 4850 | ||
| b31867b6 | 4851 | return ppc_follow_link (fdh); |
| 8387904d AM |
4852 | } |
| 4853 | ||
| bb700d78 AM |
4854 | /* Make a fake function descriptor sym for the code sym FH. */ |
| 4855 | ||
| 4856 | static struct ppc_link_hash_entry * | |
| 4857 | make_fdh (struct bfd_link_info *info, | |
| 908b32fc | 4858 | struct ppc_link_hash_entry *fh) |
| bb700d78 AM |
4859 | { |
| 4860 | bfd *abfd; | |
| 4861 | asymbol *newsym; | |
| 4862 | struct bfd_link_hash_entry *bh; | |
| 4863 | struct ppc_link_hash_entry *fdh; | |
| 4864 | ||
| 4865 | abfd = fh->elf.root.u.undef.abfd; | |
| 4866 | newsym = bfd_make_empty_symbol (abfd); | |
| 4867 | newsym->name = fh->elf.root.root.string + 1; | |
| 4868 | newsym->section = bfd_und_section_ptr; | |
| 4869 | newsym->value = 0; | |
| 908b32fc | 4870 | newsym->flags = BSF_WEAK; |
| bb700d78 AM |
4871 | |
| 4872 | bh = NULL; | |
| 4873 | if (!_bfd_generic_link_add_one_symbol (info, abfd, newsym->name, | |
| 4874 | newsym->flags, newsym->section, | |
| 4875 | newsym->value, NULL, FALSE, FALSE, | |
| 4876 | &bh)) | |
| 4877 | return NULL; | |
| 4878 | ||
| 4879 | fdh = (struct ppc_link_hash_entry *) bh; | |
| 4880 | fdh->elf.non_elf = 0; | |
| 908b32fc AM |
4881 | fdh->fake = 1; |
| 4882 | fdh->is_func_descriptor = 1; | |
| 4883 | fdh->oh = fh; | |
| 4884 | fh->is_func = 1; | |
| 4885 | fh->oh = fdh; | |
| bb700d78 AM |
4886 | return fdh; |
| 4887 | } | |
| 4888 | ||
| 8387904d AM |
4889 | /* Fix function descriptor symbols defined in .opd sections to be |
| 4890 | function type. */ | |
| 555cd476 AM |
4891 | |
| 4892 | static bfd_boolean | |
| c16153ae | 4893 | ppc64_elf_add_symbol_hook (bfd *ibfd, |
| e054468f | 4894 | struct bfd_link_info *info, |
| 555cd476 | 4895 | Elf_Internal_Sym *isym, |
| 6911b7dc | 4896 | const char **name, |
| 555cd476 AM |
4897 | flagword *flags ATTRIBUTE_UNUSED, |
| 4898 | asection **sec, | |
| b53dfeb2 | 4899 | bfd_vma *value) |
| 555cd476 | 4900 | { |
| a43942db | 4901 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC |
| f1885d1e AM |
4902 | && (ibfd->flags & DYNAMIC) == 0 |
| 4903 | && bfd_get_flavour (info->output_bfd) == bfd_target_elf_flavour) | |
| a43942db | 4904 | elf_tdata (info->output_bfd)->has_gnu_symbols |= elf_gnu_symbol_ifunc; |
| f64b2e8d | 4905 | |
| b53dfeb2 | 4906 | if (*sec != NULL |
| f1885d1e | 4907 | && strcmp ((*sec)->name, ".opd") == 0) |
| b53dfeb2 AM |
4908 | { |
| 4909 | asection *code_sec; | |
| 4910 | ||
| 4911 | if (!(ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC | |
| 4912 | || ELF_ST_TYPE (isym->st_info) == STT_FUNC)) | |
| 4913 | isym->st_info = ELF_ST_INFO (ELF_ST_BIND (isym->st_info), STT_FUNC); | |
| 4914 | ||
| 4915 | /* If the symbol is a function defined in .opd, and the function | |
| 4916 | code is in a discarded group, let it appear to be undefined. */ | |
| 0e1862bb | 4917 | if (!bfd_link_relocatable (info) |
| b53dfeb2 AM |
4918 | && (*sec)->reloc_count != 0 |
| 4919 | && opd_entry_value (*sec, *value, &code_sec, NULL, | |
| 4920 | FALSE) != (bfd_vma) -1 | |
| 4921 | && discarded_section (code_sec)) | |
| 4922 | { | |
| 4923 | *sec = bfd_und_section_ptr; | |
| 4924 | isym->st_shndx = SHN_UNDEF; | |
| 4925 | } | |
| 4926 | } | |
| dbd1e97e AM |
4927 | else if (*sec != NULL |
| 4928 | && strcmp ((*sec)->name, ".toc") == 0 | |
| 4929 | && ELF_ST_TYPE (isym->st_info) == STT_OBJECT) | |
| 4930 | { | |
| 4931 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4932 | if (htab != NULL) | |
| 4933 | htab->params->object_in_toc = 1; | |
| 4934 | } | |
| 433817dd | 4935 | |
| 6911b7dc AM |
4936 | if ((STO_PPC64_LOCAL_MASK & isym->st_other) != 0) |
| 4937 | { | |
| 4938 | if (abiversion (ibfd) == 0) | |
| 4939 | set_abiversion (ibfd, 2); | |
| 4940 | else if (abiversion (ibfd) == 1) | |
| 4941 | { | |
| 4942 | info->callbacks->einfo (_("%P: symbol '%s' has invalid st_other" | |
| 4943 | " for ABI version 1\n"), name); | |
| 4944 | bfd_set_error (bfd_error_bad_value); | |
| 4945 | return FALSE; | |
| 4946 | } | |
| 4947 | } | |
| 4948 | ||
| 555cd476 AM |
4949 | return TRUE; |
| 4950 | } | |
| 4951 | ||
| 6911b7dc AM |
4952 | /* Merge non-visibility st_other attributes: local entry point. */ |
| 4953 | ||
| 4954 | static void | |
| 4955 | ppc64_elf_merge_symbol_attribute (struct elf_link_hash_entry *h, | |
| 4956 | const Elf_Internal_Sym *isym, | |
| 4957 | bfd_boolean definition, | |
| 4958 | bfd_boolean dynamic) | |
| 4959 | { | |
| 4960 | if (definition && !dynamic) | |
| 4961 | h->other = ((isym->st_other & ~ELF_ST_VISIBILITY (-1)) | |
| 4962 | | ELF_ST_VISIBILITY (h->other)); | |
| 4963 | } | |
| 4964 | ||
| 8387904d | 4965 | /* This function makes an old ABI object reference to ".bar" cause the |
| 908b32fc AM |
4966 | inclusion of a new ABI object archive that defines "bar". |
| 4967 | NAME is a symbol defined in an archive. Return a symbol in the hash | |
| 4968 | table that might be satisfied by the archive symbols. */ | |
| 8387904d AM |
4969 | |
| 4970 | static struct elf_link_hash_entry * | |
| 4971 | ppc64_elf_archive_symbol_lookup (bfd *abfd, | |
| 4972 | struct bfd_link_info *info, | |
| 4973 | const char *name) | |
| 4974 | { | |
| 4975 | struct elf_link_hash_entry *h; | |
| 4976 | char *dot_name; | |
| 4977 | size_t len; | |
| 4978 | ||
| 4979 | h = _bfd_elf_archive_symbol_lookup (abfd, info, name); | |
| 908b32fc AM |
4980 | if (h != NULL |
| 4981 | /* Don't return this sym if it is a fake function descriptor | |
| 4982 | created by add_symbol_adjust. */ | |
| 4983 | && !(h->root.type == bfd_link_hash_undefweak | |
| 4984 | && ((struct ppc_link_hash_entry *) h)->fake)) | |
| 8387904d AM |
4985 | return h; |
| 4986 | ||
| 4987 | if (name[0] == '.') | |
| 4988 | return h; | |
| 4989 | ||
| 4990 | len = strlen (name); | |
| 4991 | dot_name = bfd_alloc (abfd, len + 2); | |
| 4992 | if (dot_name == NULL) | |
| 4993 | return (struct elf_link_hash_entry *) 0 - 1; | |
| 4994 | dot_name[0] = '.'; | |
| 4995 | memcpy (dot_name + 1, name, len + 1); | |
| 4996 | h = _bfd_elf_archive_symbol_lookup (abfd, info, dot_name); | |
| 4997 | bfd_release (abfd, dot_name); | |
| 4998 | return h; | |
| 4999 | } | |
| 5000 | ||
| 5001 | /* This function satisfies all old ABI object references to ".bar" if a | |
| 99877b66 AM |
5002 | new ABI object defines "bar". Well, at least, undefined dot symbols |
| 5003 | are made weak. This stops later archive searches from including an | |
| 5004 | object if we already have a function descriptor definition. It also | |
| 35b0ce59 AM |
5005 | prevents the linker complaining about undefined symbols. |
| 5006 | We also check and correct mismatched symbol visibility here. The | |
| 5007 | most restrictive visibility of the function descriptor and the | |
| 5008 | function entry symbol is used. */ | |
| 8387904d AM |
5009 | |
| 5010 | static bfd_boolean | |
| b3fac117 | 5011 | add_symbol_adjust (struct ppc_link_hash_entry *eh, struct bfd_link_info *info) |
| 8387904d | 5012 | { |
| 8387904d AM |
5013 | struct ppc_link_hash_table *htab; |
| 5014 | struct ppc_link_hash_entry *fdh; | |
| 5015 | ||
| b3fac117 | 5016 | if (eh->elf.root.type == bfd_link_hash_indirect) |
| 8387904d AM |
5017 | return TRUE; |
| 5018 | ||
| b3fac117 AM |
5019 | if (eh->elf.root.type == bfd_link_hash_warning) |
| 5020 | eh = (struct ppc_link_hash_entry *) eh->elf.root.u.i.link; | |
| 8387904d | 5021 | |
| b3fac117 AM |
5022 | if (eh->elf.root.root.string[0] != '.') |
| 5023 | abort (); | |
| 8387904d | 5024 | |
| b3fac117 | 5025 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5026 | if (htab == NULL) |
| 5027 | return FALSE; | |
| 5028 | ||
| b31867b6 AM |
5029 | fdh = lookup_fdh (eh, htab); |
| 5030 | if (fdh == NULL) | |
| 5031 | { | |
| 0e1862bb | 5032 | if (!bfd_link_relocatable (info) |
| b31867b6 AM |
5033 | && (eh->elf.root.type == bfd_link_hash_undefined |
| 5034 | || eh->elf.root.type == bfd_link_hash_undefweak) | |
| 5035 | && eh->elf.ref_regular) | |
| 5036 | { | |
| 5037 | /* Make an undefweak function descriptor sym, which is enough to | |
| 5038 | pull in an --as-needed shared lib, but won't cause link | |
| 5039 | errors. Archives are handled elsewhere. */ | |
| 5040 | fdh = make_fdh (info, eh); | |
| 5041 | if (fdh == NULL) | |
| 5042 | return FALSE; | |
| 5043 | fdh->elf.ref_regular = 1; | |
| 5044 | } | |
| bb700d78 | 5045 | } |
| b31867b6 | 5046 | else |
| 8387904d | 5047 | { |
| 35b0ce59 AM |
5048 | unsigned entry_vis = ELF_ST_VISIBILITY (eh->elf.other) - 1; |
| 5049 | unsigned descr_vis = ELF_ST_VISIBILITY (fdh->elf.other) - 1; | |
| 5050 | if (entry_vis < descr_vis) | |
| 5051 | fdh->elf.other += entry_vis - descr_vis; | |
| 5052 | else if (entry_vis > descr_vis) | |
| 5053 | eh->elf.other += descr_vis - entry_vis; | |
| 5054 | ||
| e87d886e AM |
5055 | if ((fdh->elf.root.type == bfd_link_hash_defined |
| 5056 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 5057 | && eh->elf.root.type == bfd_link_hash_undefined) | |
| 35b0ce59 AM |
5058 | { |
| 5059 | eh->elf.root.type = bfd_link_hash_undefweak; | |
| 5060 | eh->was_undefined = 1; | |
| 5061 | htab->twiddled_syms = 1; | |
| 5062 | } | |
| 8387904d | 5063 | } |
| 99877b66 | 5064 | |
| 8387904d AM |
5065 | return TRUE; |
| 5066 | } | |
| 5067 | ||
| f6c7c3e8 AM |
5068 | /* Set up opd section info and abiversion for IBFD, and process list |
| 5069 | of dot-symbols we made in link_hash_newfunc. */ | |
| b3fac117 | 5070 | |
| 8387904d | 5071 | static bfd_boolean |
| f6c7c3e8 | 5072 | ppc64_elf_before_check_relocs (bfd *ibfd, struct bfd_link_info *info) |
| 8387904d | 5073 | { |
| 99877b66 | 5074 | struct ppc_link_hash_table *htab; |
| b3fac117 | 5075 | struct ppc_link_hash_entry **p, *eh; |
| 459609d6 | 5076 | asection *opd = bfd_get_section_by_name (ibfd, ".opd"); |
| 433817dd | 5077 | |
| 459609d6 | 5078 | if (opd != NULL && opd->size != 0) |
| b3fac117 | 5079 | { |
| 459609d6 AM |
5080 | if (abiversion (ibfd) == 0) |
| 5081 | set_abiversion (ibfd, 1); | |
| 5082 | else if (abiversion (ibfd) == 2) | |
| f6c7c3e8 | 5083 | { |
| 459609d6 AM |
5084 | info->callbacks->einfo (_("%P: %B .opd not allowed in ABI" |
| 5085 | " version %d\n"), | |
| 5086 | ibfd, abiversion (ibfd)); | |
| 5087 | bfd_set_error (bfd_error_bad_value); | |
| 5088 | return FALSE; | |
| f6c7c3e8 AM |
5089 | } |
| 5090 | ||
| 459609d6 AM |
5091 | if ((ibfd->flags & DYNAMIC) == 0 |
| 5092 | && (opd->flags & SEC_RELOC) != 0 | |
| 5093 | && opd->reloc_count != 0 | |
| 5094 | && !bfd_is_abs_section (opd->output_section)) | |
| b3fac117 | 5095 | { |
| 459609d6 AM |
5096 | /* Garbage collection needs some extra help with .opd sections. |
| 5097 | We don't want to necessarily keep everything referenced by | |
| 5098 | relocs in .opd, as that would keep all functions. Instead, | |
| 5099 | if we reference an .opd symbol (a function descriptor), we | |
| 5100 | want to keep the function code symbol's section. This is | |
| 5101 | easy for global symbols, but for local syms we need to keep | |
| 5102 | information about the associated function section. */ | |
| 5103 | bfd_size_type amt; | |
| 5104 | asection **opd_sym_map; | |
| 5105 | ||
| 51aecdc5 | 5106 | amt = OPD_NDX (opd->size) * sizeof (*opd_sym_map); |
| 459609d6 AM |
5107 | opd_sym_map = bfd_zalloc (ibfd, amt); |
| 5108 | if (opd_sym_map == NULL) | |
| b3fac117 | 5109 | return FALSE; |
| 459609d6 AM |
5110 | ppc64_elf_section_data (opd)->u.opd.func_sec = opd_sym_map; |
| 5111 | BFD_ASSERT (ppc64_elf_section_data (opd)->sec_type == sec_normal); | |
| 5112 | ppc64_elf_section_data (opd)->sec_type = sec_opd; | |
| b3fac117 AM |
5113 | } |
| 5114 | } | |
| 5115 | ||
| 459609d6 AM |
5116 | if (!is_ppc64_elf (info->output_bfd)) |
| 5117 | return TRUE; | |
| 5118 | htab = ppc_hash_table (info); | |
| 5119 | if (htab == NULL) | |
| 5120 | return FALSE; | |
| 5121 | ||
| 5122 | /* For input files without an explicit abiversion in e_flags | |
| 5123 | we should have flagged any with symbol st_other bits set | |
| 5124 | as ELFv1 and above flagged those with .opd as ELFv2. | |
| 5125 | Set the output abiversion if not yet set, and for any input | |
| 5126 | still ambiguous, take its abiversion from the output. | |
| 5127 | Differences in ABI are reported later. */ | |
| 5128 | if (abiversion (info->output_bfd) == 0) | |
| 5129 | set_abiversion (info->output_bfd, abiversion (ibfd)); | |
| 5130 | else if (abiversion (ibfd) == 0) | |
| 5131 | set_abiversion (ibfd, abiversion (info->output_bfd)); | |
| 5132 | ||
| 5133 | p = &htab->dot_syms; | |
| 5134 | while ((eh = *p) != NULL) | |
| 5135 | { | |
| 5136 | *p = NULL; | |
| 5137 | if (&eh->elf == htab->elf.hgot) | |
| 5138 | ; | |
| 5139 | else if (htab->elf.hgot == NULL | |
| 5140 | && strcmp (eh->elf.root.root.string, ".TOC.") == 0) | |
| 5141 | htab->elf.hgot = &eh->elf; | |
| 5142 | else if (!add_symbol_adjust (eh, info)) | |
| 5143 | return FALSE; | |
| 5144 | p = &eh->u.next_dot_sym; | |
| 5145 | } | |
| 5146 | ||
| b3fac117 AM |
5147 | /* Clear the list for non-ppc64 input files. */ |
| 5148 | p = &htab->dot_syms; | |
| 5149 | while ((eh = *p) != NULL) | |
| 5150 | { | |
| 5151 | *p = NULL; | |
| 5152 | p = &eh->u.next_dot_sym; | |
| 5153 | } | |
| 99877b66 AM |
5154 | |
| 5155 | /* We need to fix the undefs list for any syms we have twiddled to | |
| 57e7d118 | 5156 | undefweak. */ |
| 99877b66 AM |
5157 | if (htab->twiddled_syms) |
| 5158 | { | |
| 77cfaee6 | 5159 | bfd_link_repair_undef_list (&htab->elf.root); |
| 99877b66 AM |
5160 | htab->twiddled_syms = 0; |
| 5161 | } | |
| b3fac117 | 5162 | return TRUE; |
| 8387904d AM |
5163 | } |
| 5164 | ||
| 97fed1c9 JJ |
5165 | /* Undo hash table changes when an --as-needed input file is determined |
| 5166 | not to be needed. */ | |
| 5167 | ||
| 5168 | static bfd_boolean | |
| e5034e59 AM |
5169 | ppc64_elf_notice_as_needed (bfd *ibfd, |
| 5170 | struct bfd_link_info *info, | |
| 5171 | enum notice_asneeded_action act) | |
| 97fed1c9 | 5172 | { |
| e5034e59 AM |
5173 | if (act == notice_not_needed) |
| 5174 | { | |
| 5175 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 | 5176 | |
| e5034e59 AM |
5177 | if (htab == NULL) |
| 5178 | return FALSE; | |
| 4dfe6ac6 | 5179 | |
| e5034e59 AM |
5180 | htab->dot_syms = NULL; |
| 5181 | } | |
| 5182 | return _bfd_elf_notice_as_needed (ibfd, info, act); | |
| 97fed1c9 JJ |
5183 | } |
| 5184 | ||
| aa374f67 AM |
5185 | /* If --just-symbols against a final linked binary, then assume we need |
| 5186 | toc adjusting stubs when calling functions defined there. */ | |
| 5187 | ||
| 5188 | static void | |
| 5189 | ppc64_elf_link_just_syms (asection *sec, struct bfd_link_info *info) | |
| 5190 | { | |
| 5191 | if ((sec->flags & SEC_CODE) != 0 | |
| 5192 | && (sec->owner->flags & (EXEC_P | DYNAMIC)) != 0 | |
| 5193 | && is_ppc64_elf (sec->owner)) | |
| 5194 | { | |
| 2c3f079f AM |
5195 | if (abiversion (sec->owner) >= 2 |
| 5196 | || bfd_get_section_by_name (sec->owner, ".opd") != NULL) | |
| aa374f67 AM |
5197 | sec->has_toc_reloc = 1; |
| 5198 | } | |
| 5199 | _bfd_elf_link_just_syms (sec, info); | |
| 5200 | } | |
| 5201 | ||
| e054468f | 5202 | static struct plt_entry ** |
| 4ce794b7 AM |
5203 | update_local_sym_info (bfd *abfd, Elf_Internal_Shdr *symtab_hdr, |
| 5204 | unsigned long r_symndx, bfd_vma r_addend, int tls_type) | |
| 411e1bfb AM |
5205 | { |
| 5206 | struct got_entry **local_got_ents = elf_local_got_ents (abfd); | |
| e054468f | 5207 | struct plt_entry **local_plt; |
| f961d9dd | 5208 | unsigned char *local_got_tls_masks; |
| 411e1bfb AM |
5209 | |
| 5210 | if (local_got_ents == NULL) | |
| 5211 | { | |
| 5212 | bfd_size_type size = symtab_hdr->sh_info; | |
| 5213 | ||
| e054468f AM |
5214 | size *= (sizeof (*local_got_ents) |
| 5215 | + sizeof (*local_plt) | |
| 5216 | + sizeof (*local_got_tls_masks)); | |
| 4ce794b7 | 5217 | local_got_ents = bfd_zalloc (abfd, size); |
| 411e1bfb | 5218 | if (local_got_ents == NULL) |
| e054468f | 5219 | return NULL; |
| 411e1bfb AM |
5220 | elf_local_got_ents (abfd) = local_got_ents; |
| 5221 | } | |
| 5222 | ||
| e054468f | 5223 | if ((tls_type & (PLT_IFUNC | TLS_EXPLICIT)) == 0) |
| 411e1bfb AM |
5224 | { |
| 5225 | struct got_entry *ent; | |
| 5226 | ||
| 5227 | for (ent = local_got_ents[r_symndx]; ent != NULL; ent = ent->next) | |
| e717da7e AM |
5228 | if (ent->addend == r_addend |
| 5229 | && ent->owner == abfd | |
| 5230 | && ent->tls_type == tls_type) | |
| 411e1bfb AM |
5231 | break; |
| 5232 | if (ent == NULL) | |
| 5233 | { | |
| 5234 | bfd_size_type amt = sizeof (*ent); | |
| 4ce794b7 | 5235 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5236 | if (ent == NULL) |
| 5237 | return FALSE; | |
| 5238 | ent->next = local_got_ents[r_symndx]; | |
| 5239 | ent->addend = r_addend; | |
| e717da7e | 5240 | ent->owner = abfd; |
| 411e1bfb | 5241 | ent->tls_type = tls_type; |
| 927be08e | 5242 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5243 | ent->got.refcount = 0; |
| 5244 | local_got_ents[r_symndx] = ent; | |
| 5245 | } | |
| 5246 | ent->got.refcount += 1; | |
| 5247 | } | |
| 5248 | ||
| e054468f | 5249 | local_plt = (struct plt_entry **) (local_got_ents + symtab_hdr->sh_info); |
| f961d9dd | 5250 | local_got_tls_masks = (unsigned char *) (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 5251 | local_got_tls_masks[r_symndx] |= tls_type; |
| e054468f AM |
5252 | |
| 5253 | return local_plt + r_symndx; | |
| 65f38f15 AM |
5254 | } |
| 5255 | ||
| 411e1bfb | 5256 | static bfd_boolean |
| e054468f | 5257 | update_plt_info (bfd *abfd, struct plt_entry **plist, bfd_vma addend) |
| 1e2f5b6e | 5258 | { |
| 411e1bfb | 5259 | struct plt_entry *ent; |
| 1e2f5b6e | 5260 | |
| e054468f | 5261 | for (ent = *plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
5262 | if (ent->addend == addend) |
| 5263 | break; | |
| 5264 | if (ent == NULL) | |
| 1e2f5b6e | 5265 | { |
| 411e1bfb | 5266 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5267 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb AM |
5268 | if (ent == NULL) |
| 5269 | return FALSE; | |
| e054468f | 5270 | ent->next = *plist; |
| 411e1bfb AM |
5271 | ent->addend = addend; |
| 5272 | ent->plt.refcount = 0; | |
| e054468f | 5273 | *plist = ent; |
| 1e2f5b6e | 5274 | } |
| 411e1bfb | 5275 | ent->plt.refcount += 1; |
| b34976b6 | 5276 | return TRUE; |
| 1e2f5b6e AM |
5277 | } |
| 5278 | ||
| e054468f AM |
5279 | static bfd_boolean |
| 5280 | is_branch_reloc (enum elf_ppc64_reloc_type r_type) | |
| 5281 | { | |
| 5282 | return (r_type == R_PPC64_REL24 | |
| 5283 | || r_type == R_PPC64_REL14 | |
| 5284 | || r_type == R_PPC64_REL14_BRTAKEN | |
| 5285 | || r_type == R_PPC64_REL14_BRNTAKEN | |
| 5286 | || r_type == R_PPC64_ADDR24 | |
| 5287 | || r_type == R_PPC64_ADDR14 | |
| 5288 | || r_type == R_PPC64_ADDR14_BRTAKEN | |
| 5289 | || r_type == R_PPC64_ADDR14_BRNTAKEN); | |
| 5290 | } | |
| 5291 | ||
| 5bd4f169 | 5292 | /* Look through the relocs for a section during the first phase, and |
| 65f38f15 | 5293 | calculate needed space in the global offset table, procedure |
| 5d1634d7 | 5294 | linkage table, and dynamic reloc sections. */ |
| 5bd4f169 | 5295 | |
| b34976b6 | 5296 | static bfd_boolean |
| 4ce794b7 AM |
5297 | ppc64_elf_check_relocs (bfd *abfd, struct bfd_link_info *info, |
| 5298 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 5299 | { |
| 65f38f15 | 5300 | struct ppc_link_hash_table *htab; |
| 5bd4f169 | 5301 | Elf_Internal_Shdr *symtab_hdr; |
| c7e2358a | 5302 | struct elf_link_hash_entry **sym_hashes; |
| 5bd4f169 AM |
5303 | const Elf_Internal_Rela *rel; |
| 5304 | const Elf_Internal_Rela *rel_end; | |
| 5bd4f169 | 5305 | asection *sreloc; |
| 1e2f5b6e | 5306 | asection **opd_sym_map; |
| 3a71aa26 | 5307 | struct elf_link_hash_entry *tga, *dottga; |
| 5bd4f169 | 5308 | |
| 0e1862bb | 5309 | if (bfd_link_relocatable (info)) |
| b34976b6 | 5310 | return TRUE; |
| 5bd4f169 | 5311 | |
| 680a3378 AM |
5312 | /* Don't do anything special with non-loaded, non-alloced sections. |
| 5313 | In particular, any relocs in such sections should not affect GOT | |
| 5314 | and PLT reference counting (ie. we don't allow them to create GOT | |
| 5315 | or PLT entries), there's no possibility or desire to optimize TLS | |
| 5316 | relocs, and there's not much point in propagating relocs to shared | |
| 5317 | libs that the dynamic linker won't relocate. */ | |
| 5318 | if ((sec->flags & SEC_ALLOC) == 0) | |
| 5319 | return TRUE; | |
| 5320 | ||
| 0c8d6e5c | 5321 | BFD_ASSERT (is_ppc64_elf (abfd)); |
| 0ffa91dd | 5322 | |
| 65f38f15 | 5323 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
5324 | if (htab == NULL) |
| 5325 | return FALSE; | |
| 5326 | ||
| 3a71aa26 AM |
5327 | tga = elf_link_hash_lookup (&htab->elf, "__tls_get_addr", |
| 5328 | FALSE, FALSE, TRUE); | |
| 5329 | dottga = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 5330 | FALSE, FALSE, TRUE); | |
| 0ffa91dd | 5331 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 5332 | sym_hashes = elf_sym_hashes (abfd); |
| 5bd4f169 | 5333 | sreloc = NULL; |
| 1e2f5b6e | 5334 | opd_sym_map = NULL; |
| f6c7c3e8 AM |
5335 | if (ppc64_elf_section_data (sec) != NULL |
| 5336 | && ppc64_elf_section_data (sec)->sec_type == sec_opd) | |
| 5337 | opd_sym_map = ppc64_elf_section_data (sec)->u.opd.func_sec; | |
| 5bd4f169 AM |
5338 | |
| 5339 | rel_end = relocs + sec->reloc_count; | |
| 5340 | for (rel = relocs; rel < rel_end; rel++) | |
| 5341 | { | |
| 5342 | unsigned long r_symndx; | |
| 5343 | struct elf_link_hash_entry *h; | |
| 04c9666a | 5344 | enum elf_ppc64_reloc_type r_type; |
| 727fc41e | 5345 | int tls_type; |
| 7c8fe5c4 | 5346 | struct _ppc64_elf_section_data *ppc64_sec; |
| cbf95972 | 5347 | struct plt_entry **ifunc, **plt_list; |
| 5bd4f169 AM |
5348 | |
| 5349 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 5350 | if (r_symndx < symtab_hdr->sh_info) | |
| 5351 | h = NULL; | |
| 5352 | else | |
| 973a3492 L |
5353 | { |
| 5354 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 5355 | h = elf_follow_link (h); |
| 81fbe831 AM |
5356 | |
| 5357 | /* PR15323, ref flags aren't set for references in the same | |
| 5358 | object. */ | |
| 5359 | h->root.non_ir_ref = 1; | |
| 1c865ab2 AM |
5360 | |
| 5361 | if (h == htab->elf.hgot) | |
| 5362 | sec->has_toc_reloc = 1; | |
| 973a3492 | 5363 | } |
| 5bd4f169 | 5364 | |
| 727fc41e | 5365 | tls_type = 0; |
| e054468f | 5366 | ifunc = NULL; |
| 25f23106 AM |
5367 | if (h != NULL) |
| 5368 | { | |
| 5369 | if (h->type == STT_GNU_IFUNC) | |
| 5370 | { | |
| 5371 | h->needs_plt = 1; | |
| 5372 | ifunc = &h->plt.plist; | |
| 5373 | } | |
| 5374 | } | |
| 5375 | else | |
| 5376 | { | |
| 5377 | Elf_Internal_Sym *isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5378 | abfd, r_symndx); | |
| 5379 | if (isym == NULL) | |
| 5380 | return FALSE; | |
| 5381 | ||
| 5382 | if (ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC) | |
| 5383 | { | |
| 5384 | ifunc = update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5385 | rel->r_addend, PLT_IFUNC); | |
| 5386 | if (ifunc == NULL) | |
| 5387 | return FALSE; | |
| 5388 | } | |
| 5389 | } | |
| 727fc41e | 5390 | |
| cbf95972 | 5391 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 5392 | switch (r_type) |
| 5bd4f169 | 5393 | { |
| 727fc41e AM |
5394 | case R_PPC64_TLSGD: |
| 5395 | case R_PPC64_TLSLD: | |
| 5396 | /* These special tls relocs tie a call to __tls_get_addr with | |
| 5397 | its parameter symbol. */ | |
| 5398 | break; | |
| 5399 | ||
| 411e1bfb AM |
5400 | case R_PPC64_GOT_TLSLD16: |
| 5401 | case R_PPC64_GOT_TLSLD16_LO: | |
| 5402 | case R_PPC64_GOT_TLSLD16_HI: | |
| 5403 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 5404 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5405 | goto dogottls; |
| 5406 | ||
| 5407 | case R_PPC64_GOT_TLSGD16: | |
| 5408 | case R_PPC64_GOT_TLSGD16_LO: | |
| 5409 | case R_PPC64_GOT_TLSGD16_HI: | |
| 5410 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 5411 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
5412 | goto dogottls; |
| 5413 | ||
| 5414 | case R_PPC64_GOT_TPREL16_DS: | |
| 5415 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 5416 | case R_PPC64_GOT_TPREL16_HI: | |
| 5417 | case R_PPC64_GOT_TPREL16_HA: | |
| 0e1862bb | 5418 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5419 | info->flags |= DF_STATIC_TLS; |
| 5420 | tls_type = TLS_TLS | TLS_TPREL; | |
| 5421 | goto dogottls; | |
| 5422 | ||
| 5423 | case R_PPC64_GOT_DTPREL16_DS: | |
| 5424 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 5425 | case R_PPC64_GOT_DTPREL16_HI: | |
| 5426 | case R_PPC64_GOT_DTPREL16_HA: | |
| 5427 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 5428 | dogottls: | |
| 5429 | sec->has_tls_reloc = 1; | |
| 5430 | /* Fall thru */ | |
| 5431 | ||
| 5bd4f169 | 5432 | case R_PPC64_GOT16: |
| 5bd4f169 | 5433 | case R_PPC64_GOT16_DS: |
| 65f38f15 AM |
5434 | case R_PPC64_GOT16_HA: |
| 5435 | case R_PPC64_GOT16_HI: | |
| 5436 | case R_PPC64_GOT16_LO: | |
| 5bd4f169 | 5437 | case R_PPC64_GOT16_LO_DS: |
| 65f38f15 | 5438 | /* This symbol requires a global offset table entry. */ |
| 4c52953f | 5439 | sec->has_toc_reloc = 1; |
| 33c0ec9d AM |
5440 | if (r_type == R_PPC64_GOT_TLSLD16 |
| 5441 | || r_type == R_PPC64_GOT_TLSGD16 | |
| 5442 | || r_type == R_PPC64_GOT_TPREL16_DS | |
| 5443 | || r_type == R_PPC64_GOT_DTPREL16_DS | |
| 5444 | || r_type == R_PPC64_GOT16 | |
| 5445 | || r_type == R_PPC64_GOT16_DS) | |
| 5446 | { | |
| 5447 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5448 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| 33c0ec9d AM |
5449 | } |
| 5450 | ||
| e717da7e AM |
5451 | if (ppc64_elf_tdata (abfd)->got == NULL |
| 5452 | && !create_got_section (abfd, info)) | |
| b34976b6 | 5453 | return FALSE; |
| 5bd4f169 AM |
5454 | |
| 5455 | if (h != NULL) | |
| 5456 | { | |
| 411e1bfb AM |
5457 | struct ppc_link_hash_entry *eh; |
| 5458 | struct got_entry *ent; | |
| 65f38f15 | 5459 | |
| 411e1bfb AM |
5460 | eh = (struct ppc_link_hash_entry *) h; |
| 5461 | for (ent = eh->elf.got.glist; ent != NULL; ent = ent->next) | |
| 5462 | if (ent->addend == rel->r_addend | |
| e717da7e | 5463 | && ent->owner == abfd |
| 411e1bfb AM |
5464 | && ent->tls_type == tls_type) |
| 5465 | break; | |
| 5466 | if (ent == NULL) | |
| 5bd4f169 | 5467 | { |
| 411e1bfb | 5468 | bfd_size_type amt = sizeof (*ent); |
| 4ce794b7 | 5469 | ent = bfd_alloc (abfd, amt); |
| 411e1bfb | 5470 | if (ent == NULL) |
| b34976b6 | 5471 | return FALSE; |
| 411e1bfb AM |
5472 | ent->next = eh->elf.got.glist; |
| 5473 | ent->addend = rel->r_addend; | |
| e717da7e | 5474 | ent->owner = abfd; |
| 411e1bfb | 5475 | ent->tls_type = tls_type; |
| 927be08e | 5476 | ent->is_indirect = FALSE; |
| 411e1bfb AM |
5477 | ent->got.refcount = 0; |
| 5478 | eh->elf.got.glist = ent; | |
| 5bd4f169 | 5479 | } |
| 411e1bfb | 5480 | ent->got.refcount += 1; |
| e7b938ca | 5481 | eh->tls_mask |= tls_type; |
| 5bd4f169 | 5482 | } |
| 411e1bfb AM |
5483 | else |
| 5484 | /* This is a global offset table entry for a local symbol. */ | |
| 5485 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5486 | rel->r_addend, tls_type)) | |
| 5487 | return FALSE; | |
| a345bc8d AM |
5488 | |
| 5489 | /* We may also need a plt entry if the symbol turns out to be | |
| 5490 | an ifunc. */ | |
| 0e1862bb | 5491 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1) |
| a345bc8d AM |
5492 | { |
| 5493 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5494 | return FALSE; | |
| 5495 | } | |
| 5bd4f169 AM |
5496 | break; |
| 5497 | ||
| 5bd4f169 | 5498 | case R_PPC64_PLT16_HA: |
| 65f38f15 AM |
5499 | case R_PPC64_PLT16_HI: |
| 5500 | case R_PPC64_PLT16_LO: | |
| 5501 | case R_PPC64_PLT32: | |
| 5502 | case R_PPC64_PLT64: | |
| cbf95972 AM |
5503 | /* This symbol requires a procedure linkage table entry. */ |
| 5504 | plt_list = ifunc; | |
| 5505 | if (h != NULL) | |
| e054468f | 5506 | { |
| e054468f AM |
5507 | h->needs_plt = 1; |
| 5508 | if (h->root.root.string[0] == '.' | |
| 5509 | && h->root.root.string[1] != '\0') | |
| 5510 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 AM |
5511 | plt_list = &h->plt.plist; |
| 5512 | } | |
| 5513 | if (plt_list == NULL) | |
| 5514 | { | |
| 5515 | /* It does not make sense to have a procedure linkage | |
| 5516 | table entry for a non-ifunc local symbol. */ | |
| 5517 | info->callbacks->einfo | |
| 5518 | (_("%P: %H: %s reloc against local symbol\n"), | |
| 5519 | abfd, sec, rel->r_offset, | |
| 5520 | ppc64_elf_howto_table[r_type]->name); | |
| 5521 | bfd_set_error (bfd_error_bad_value); | |
| 5522 | return FALSE; | |
| e054468f | 5523 | } |
| cbf95972 AM |
5524 | if (!update_plt_info (abfd, plt_list, rel->r_addend)) |
| 5525 | return FALSE; | |
| 5bd4f169 AM |
5526 | break; |
| 5527 | ||
| 5528 | /* The following relocations don't need to propagate the | |
| 5529 | relocation if linking a shared object since they are | |
| 5530 | section relative. */ | |
| 5531 | case R_PPC64_SECTOFF: | |
| 5532 | case R_PPC64_SECTOFF_LO: | |
| 5533 | case R_PPC64_SECTOFF_HI: | |
| 5534 | case R_PPC64_SECTOFF_HA: | |
| 5535 | case R_PPC64_SECTOFF_DS: | |
| 5536 | case R_PPC64_SECTOFF_LO_DS: | |
| 411e1bfb AM |
5537 | case R_PPC64_DTPREL16: |
| 5538 | case R_PPC64_DTPREL16_LO: | |
| 5539 | case R_PPC64_DTPREL16_HI: | |
| 5540 | case R_PPC64_DTPREL16_HA: | |
| 5541 | case R_PPC64_DTPREL16_DS: | |
| 5542 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
5543 | case R_PPC64_DTPREL16_HIGH: |
| 5544 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
5545 | case R_PPC64_DTPREL16_HIGHER: |
| 5546 | case R_PPC64_DTPREL16_HIGHERA: | |
| 5547 | case R_PPC64_DTPREL16_HIGHEST: | |
| 5548 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 5bd4f169 AM |
5549 | break; |
| 5550 | ||
| ad8e1ba5 | 5551 | /* Nor do these. */ |
| 25f23106 AM |
5552 | case R_PPC64_REL16: |
| 5553 | case R_PPC64_REL16_LO: | |
| 5554 | case R_PPC64_REL16_HI: | |
| 5555 | case R_PPC64_REL16_HA: | |
| a680de9a | 5556 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
5557 | break; |
| 5558 | ||
| 45965137 AM |
5559 | /* Not supported as a dynamic relocation. */ |
| 5560 | case R_PPC64_ADDR64_LOCAL: | |
| 0e1862bb | 5561 | if (bfd_link_pic (info)) |
| 45965137 AM |
5562 | { |
| 5563 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) | |
| 5564 | ppc_howto_init (); | |
| 5565 | info->callbacks->einfo (_("%P: %H: %s reloc unsupported " | |
| 5566 | "in shared libraries and PIEs.\n"), | |
| 5567 | abfd, sec, rel->r_offset, | |
| 5568 | ppc64_elf_howto_table[r_type]->name); | |
| 5569 | bfd_set_error (bfd_error_bad_value); | |
| 5570 | return FALSE; | |
| 5571 | } | |
| 5572 | break; | |
| 5573 | ||
| ad8e1ba5 | 5574 | case R_PPC64_TOC16: |
| 33c0ec9d AM |
5575 | case R_PPC64_TOC16_DS: |
| 5576 | htab->do_multi_toc = 1; | |
| d77c8a4b | 5577 | ppc64_elf_tdata (abfd)->has_small_toc_reloc = 1; |
| ad8e1ba5 AM |
5578 | case R_PPC64_TOC16_LO: |
| 5579 | case R_PPC64_TOC16_HI: | |
| 5580 | case R_PPC64_TOC16_HA: | |
| ad8e1ba5 | 5581 | case R_PPC64_TOC16_LO_DS: |
| 4c52953f | 5582 | sec->has_toc_reloc = 1; |
| ad8e1ba5 AM |
5583 | break; |
| 5584 | ||
| 006589cf AM |
5585 | /* Marker reloc. */ |
| 5586 | case R_PPC64_ENTRY: | |
| 5587 | break; | |
| 5588 | ||
| 5bd4f169 AM |
5589 | /* This relocation describes the C++ object vtable hierarchy. |
| 5590 | Reconstruct it for later use during GC. */ | |
| 5591 | case R_PPC64_GNU_VTINHERIT: | |
| c152c796 | 5592 | if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset)) |
| b34976b6 | 5593 | return FALSE; |
| 5bd4f169 AM |
5594 | break; |
| 5595 | ||
| 5596 | /* This relocation describes which C++ vtable entries are actually | |
| 5597 | used. Record for later use during GC. */ | |
| 5598 | case R_PPC64_GNU_VTENTRY: | |
| d17e0c6e JB |
5599 | BFD_ASSERT (h != NULL); |
| 5600 | if (h != NULL | |
| 5601 | && !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend)) | |
| b34976b6 | 5602 | return FALSE; |
| 5bd4f169 AM |
5603 | break; |
| 5604 | ||
| 721956f4 AM |
5605 | case R_PPC64_REL14: |
| 5606 | case R_PPC64_REL14_BRTAKEN: | |
| 5607 | case R_PPC64_REL14_BRNTAKEN: | |
| 220c76dd AM |
5608 | { |
| 5609 | asection *dest = NULL; | |
| 5610 | ||
| 5611 | /* Heuristic: If jumping outside our section, chances are | |
| 5612 | we are going to need a stub. */ | |
| 5613 | if (h != NULL) | |
| 5614 | { | |
| 5615 | /* If the sym is weak it may be overridden later, so | |
| 5616 | don't assume we know where a weak sym lives. */ | |
| 5617 | if (h->root.type == bfd_link_hash_defined) | |
| 5618 | dest = h->root.u.def.section; | |
| 5619 | } | |
| 5620 | else | |
| 87d72d41 AM |
5621 | { |
| 5622 | Elf_Internal_Sym *isym; | |
| 5623 | ||
| 5624 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, | |
| 5625 | abfd, r_symndx); | |
| 5626 | if (isym == NULL) | |
| 5627 | return FALSE; | |
| 5628 | ||
| 5629 | dest = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5630 | } | |
| 5631 | ||
| 220c76dd | 5632 | if (dest != sec) |
| 7c8fe5c4 | 5633 | ppc64_elf_section_data (sec)->has_14bit_branch = 1; |
| 220c76dd | 5634 | } |
| 721956f4 AM |
5635 | /* Fall through. */ |
| 5636 | ||
| 5d1634d7 | 5637 | case R_PPC64_REL24: |
| cbf95972 AM |
5638 | plt_list = ifunc; |
| 5639 | if (h != NULL) | |
| 5d1634d7 | 5640 | { |
| e054468f AM |
5641 | h->needs_plt = 1; |
| 5642 | if (h->root.root.string[0] == '.' | |
| 5643 | && h->root.root.string[1] != '\0') | |
| 5644 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| cbf95972 | 5645 | |
| 3a71aa26 | 5646 | if (h == tga || h == dottga) |
| cbf95972 AM |
5647 | { |
| 5648 | sec->has_tls_reloc = 1; | |
| 5649 | if (rel != relocs | |
| 5650 | && (ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSGD | |
| 5651 | || ELF64_R_TYPE (rel[-1].r_info) == R_PPC64_TLSLD)) | |
| 5652 | /* We have a new-style __tls_get_addr call with | |
| 5653 | a marker reloc. */ | |
| 5654 | ; | |
| 5655 | else | |
| 5656 | /* Mark this section as having an old-style call. */ | |
| 5657 | sec->has_tls_get_addr_call = 1; | |
| 5658 | } | |
| 5659 | plt_list = &h->plt.plist; | |
| 411e1bfb | 5660 | } |
| cbf95972 AM |
5661 | |
| 5662 | /* We may need a .plt entry if the function this reloc | |
| 5663 | refers to is in a shared lib. */ | |
| 5664 | if (plt_list | |
| 5665 | && !update_plt_info (abfd, plt_list, rel->r_addend)) | |
| 5666 | return FALSE; | |
| 411e1bfb AM |
5667 | break; |
| 5668 | ||
| cbf95972 AM |
5669 | case R_PPC64_ADDR14: |
| 5670 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 5671 | case R_PPC64_ADDR14_BRTAKEN: | |
| 5672 | case R_PPC64_ADDR24: | |
| 5673 | goto dodyn; | |
| 5674 | ||
| 411e1bfb AM |
5675 | case R_PPC64_TPREL64: |
| 5676 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_TPREL; | |
| 0e1862bb | 5677 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
5678 | info->flags |= DF_STATIC_TLS; |
| 5679 | goto dotlstoc; | |
| 5680 | ||
| 5681 | case R_PPC64_DTPMOD64: | |
| 5682 | if (rel + 1 < rel_end | |
| 5683 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 5684 | && rel[1].r_offset == rel->r_offset + 8) | |
| 951fd09b | 5685 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_GD; |
| 411e1bfb | 5686 | else |
| 951fd09b | 5687 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_LD; |
| 411e1bfb AM |
5688 | goto dotlstoc; |
| 5689 | ||
| 5690 | case R_PPC64_DTPREL64: | |
| 5691 | tls_type = TLS_EXPLICIT | TLS_TLS | TLS_DTPREL; | |
| 5692 | if (rel != relocs | |
| 5693 | && rel[-1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPMOD64) | |
| 5694 | && rel[-1].r_offset == rel->r_offset - 8) | |
| 5695 | /* This is the second reloc of a dtpmod, dtprel pair. | |
| 5696 | Don't mark with TLS_DTPREL. */ | |
| 5697 | goto dodyn; | |
| 5698 | ||
| 5699 | dotlstoc: | |
| 5700 | sec->has_tls_reloc = 1; | |
| 5701 | if (h != NULL) | |
| 5702 | { | |
| 5703 | struct ppc_link_hash_entry *eh; | |
| 5704 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 5705 | eh->tls_mask |= tls_type; |
| 411e1bfb AM |
5706 | } |
| 5707 | else | |
| 5708 | if (!update_local_sym_info (abfd, symtab_hdr, r_symndx, | |
| 5709 | rel->r_addend, tls_type)) | |
| 5710 | return FALSE; | |
| 5711 | ||
| 7c8fe5c4 AM |
5712 | ppc64_sec = ppc64_elf_section_data (sec); |
| 5713 | if (ppc64_sec->sec_type != sec_toc) | |
| 411e1bfb | 5714 | { |
| 3a71aa26 AM |
5715 | bfd_size_type amt; |
| 5716 | ||
| e7b938ca | 5717 | /* One extra to simplify get_tls_mask. */ |
| 3a71aa26 AM |
5718 | amt = sec->size * sizeof (unsigned) / 8 + sizeof (unsigned); |
| 5719 | ppc64_sec->u.toc.symndx = bfd_zalloc (abfd, amt); | |
| 5720 | if (ppc64_sec->u.toc.symndx == NULL) | |
| 5721 | return FALSE; | |
| 5722 | amt = sec->size * sizeof (bfd_vma) / 8; | |
| 5723 | ppc64_sec->u.toc.add = bfd_zalloc (abfd, amt); | |
| 5724 | if (ppc64_sec->u.toc.add == NULL) | |
| 411e1bfb | 5725 | return FALSE; |
| 7c8fe5c4 AM |
5726 | BFD_ASSERT (ppc64_sec->sec_type == sec_normal); |
| 5727 | ppc64_sec->sec_type = sec_toc; | |
| 411e1bfb AM |
5728 | } |
| 5729 | BFD_ASSERT (rel->r_offset % 8 == 0); | |
| 3a71aa26 AM |
5730 | ppc64_sec->u.toc.symndx[rel->r_offset / 8] = r_symndx; |
| 5731 | ppc64_sec->u.toc.add[rel->r_offset / 8] = rel->r_addend; | |
| 951fd09b AM |
5732 | |
| 5733 | /* Mark the second slot of a GD or LD entry. | |
| 5734 | -1 to indicate GD and -2 to indicate LD. */ | |
| 5735 | if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_GD)) | |
| 3a71aa26 | 5736 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -1; |
| 951fd09b | 5737 | else if (tls_type == (TLS_EXPLICIT | TLS_TLS | TLS_LD)) |
| 3a71aa26 | 5738 | ppc64_sec->u.toc.symndx[rel->r_offset / 8 + 1] = -2; |
| 411e1bfb AM |
5739 | goto dodyn; |
| 5740 | ||
| 5741 | case R_PPC64_TPREL16: | |
| 5742 | case R_PPC64_TPREL16_LO: | |
| 5743 | case R_PPC64_TPREL16_HI: | |
| 5744 | case R_PPC64_TPREL16_HA: | |
| 5745 | case R_PPC64_TPREL16_DS: | |
| 5746 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
5747 | case R_PPC64_TPREL16_HIGH: |
| 5748 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
5749 | case R_PPC64_TPREL16_HIGHER: |
| 5750 | case R_PPC64_TPREL16_HIGHERA: | |
| 5751 | case R_PPC64_TPREL16_HIGHEST: | |
| 5752 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 5753 | if (bfd_link_pic (info)) |
| 411e1bfb | 5754 | { |
| afb93314 | 5755 | info->flags |= DF_STATIC_TLS; |
| 411e1bfb | 5756 | goto dodyn; |
| 5d1634d7 AM |
5757 | } |
| 5758 | break; | |
| 5759 | ||
| e86ce104 | 5760 | case R_PPC64_ADDR64: |
| 1e2f5b6e | 5761 | if (opd_sym_map != NULL |
| 1e2f5b6e | 5762 | && rel + 1 < rel_end |
| 4ce794b7 | 5763 | && ELF64_R_TYPE ((rel + 1)->r_info) == R_PPC64_TOC) |
| 1e2f5b6e | 5764 | { |
| 8387904d AM |
5765 | if (h != NULL) |
| 5766 | { | |
| 5767 | if (h->root.root.string[0] == '.' | |
| 5768 | && h->root.root.string[1] != 0 | |
| b31867b6 | 5769 | && lookup_fdh ((struct ppc_link_hash_entry *) h, htab)) |
| 8387904d AM |
5770 | ; |
| 5771 | else | |
| 5772 | ((struct ppc_link_hash_entry *) h)->is_func = 1; | |
| 5773 | } | |
| 5774 | else | |
| 5775 | { | |
| 5776 | asection *s; | |
| 87d72d41 | 5777 | Elf_Internal_Sym *isym; |
| 1e2f5b6e | 5778 | |
| 87d72d41 AM |
5779 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5780 | abfd, r_symndx); | |
| 5781 | if (isym == NULL) | |
| 8387904d | 5782 | return FALSE; |
| 87d72d41 AM |
5783 | |
| 5784 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); | |
| 5785 | if (s != NULL && s != sec) | |
| 51aecdc5 | 5786 | opd_sym_map[OPD_NDX (rel->r_offset)] = s; |
| 8387904d | 5787 | } |
| 1e2f5b6e | 5788 | } |
| e86ce104 AM |
5789 | /* Fall through. */ |
| 5790 | ||
| 65f38f15 AM |
5791 | case R_PPC64_ADDR16: |
| 5792 | case R_PPC64_ADDR16_DS: | |
| 5793 | case R_PPC64_ADDR16_HA: | |
| 5794 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
5795 | case R_PPC64_ADDR16_HIGH: |
| 5796 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
5797 | case R_PPC64_ADDR16_HIGHER: |
| 5798 | case R_PPC64_ADDR16_HIGHERA: | |
| 5799 | case R_PPC64_ADDR16_HIGHEST: | |
| 5800 | case R_PPC64_ADDR16_HIGHESTA: | |
| 5801 | case R_PPC64_ADDR16_LO: | |
| 5802 | case R_PPC64_ADDR16_LO_DS: | |
| 0e1862bb | 5803 | if (h != NULL && !bfd_link_pic (info) && abiversion (abfd) != 1 |
| a345bc8d AM |
5804 | && rel->r_addend == 0) |
| 5805 | { | |
| 5806 | /* We may need a .plt entry if this reloc refers to a | |
| 5807 | function in a shared lib. */ | |
| 5808 | if (!update_plt_info (abfd, &h->plt.plist, rel->r_addend)) | |
| 5809 | return FALSE; | |
| 5810 | h->pointer_equality_needed = 1; | |
| 5811 | } | |
| 5812 | /* Fall through. */ | |
| 5813 | ||
| 5814 | case R_PPC64_REL30: | |
| 5815 | case R_PPC64_REL32: | |
| 5816 | case R_PPC64_REL64: | |
| 65f38f15 | 5817 | case R_PPC64_ADDR32: |
| 65f38f15 AM |
5818 | case R_PPC64_UADDR16: |
| 5819 | case R_PPC64_UADDR32: | |
| 5820 | case R_PPC64_UADDR64: | |
| 5bd4f169 | 5821 | case R_PPC64_TOC: |
| 0e1862bb | 5822 | if (h != NULL && !bfd_link_pic (info)) |
| 81848ca0 | 5823 | /* We may need a copy reloc. */ |
| f5385ebf | 5824 | h->non_got_ref = 1; |
| 81848ca0 | 5825 | |
| 41bd81ab | 5826 | /* Don't propagate .opd relocs. */ |
| 1e2f5b6e | 5827 | if (NO_OPD_RELOCS && opd_sym_map != NULL) |
| e86ce104 | 5828 | break; |
| e86ce104 | 5829 | |
| 65f38f15 AM |
5830 | /* If we are creating a shared library, and this is a reloc |
| 5831 | against a global symbol, or a non PC relative reloc | |
| 5832 | against a local symbol, then we need to copy the reloc | |
| 5833 | into the shared library. However, if we are linking with | |
| 5834 | -Bsymbolic, we do not need to copy a reloc against a | |
| 5835 | global symbol which is defined in an object we are | |
| 5836 | including in the link (i.e., DEF_REGULAR is set). At | |
| 5837 | this point we have not seen all the input files, so it is | |
| 5838 | possible that DEF_REGULAR is not set now but will be set | |
| 5839 | later (it is never cleared). In case of a weak definition, | |
| 5840 | DEF_REGULAR may be cleared later by a strong definition in | |
| 5841 | a shared library. We account for that possibility below by | |
| f4656909 | 5842 | storing information in the dyn_relocs field of the hash |
| 65f38f15 AM |
5843 | table entry. A similar situation occurs when creating |
| 5844 | shared libraries and symbol visibility changes render the | |
| 5845 | symbol local. | |
| 5846 | ||
| 5847 | If on the other hand, we are creating an executable, we | |
| 5848 | may need to keep relocations for symbols satisfied by a | |
| 5849 | dynamic library if we manage to avoid copy relocs for the | |
| 5850 | symbol. */ | |
| 411e1bfb | 5851 | dodyn: |
| 0e1862bb | 5852 | if ((bfd_link_pic (info) |
| 1d483afe | 5853 | && (must_be_dyn_reloc (info, r_type) |
| 65f38f15 | 5854 | || (h != NULL |
| 198f1157 | 5855 | && (!SYMBOLIC_BIND (info, h) |
| 65f38f15 | 5856 | || h->root.type == bfd_link_hash_defweak |
| f5385ebf | 5857 | || !h->def_regular)))) |
| f4656909 | 5858 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 5859 | && !bfd_link_pic (info) |
| 65f38f15 AM |
5860 | && h != NULL |
| 5861 | && (h->root.type == bfd_link_hash_defweak | |
| 25f23106 | 5862 | || !h->def_regular)) |
| 0e1862bb | 5863 | || (!bfd_link_pic (info) |
| 25f23106 | 5864 | && ifunc != NULL)) |
| 5bd4f169 | 5865 | { |
| 65f38f15 AM |
5866 | /* We must copy these reloc types into the output file. |
| 5867 | Create a reloc section in dynobj and make room for | |
| 5868 | this reloc. */ | |
| 5bd4f169 AM |
5869 | if (sreloc == NULL) |
| 5870 | { | |
| 83bac4b0 NC |
5871 | sreloc = _bfd_elf_make_dynamic_reloc_section |
| 5872 | (sec, htab->elf.dynobj, 3, abfd, /*rela?*/ TRUE); | |
| 65f38f15 | 5873 | |
| 5bd4f169 | 5874 | if (sreloc == NULL) |
| 83bac4b0 | 5875 | return FALSE; |
| 5bd4f169 AM |
5876 | } |
| 5877 | ||
| 65f38f15 AM |
5878 | /* If this is a global symbol, we count the number of |
| 5879 | relocations we need for this symbol. */ | |
| 5880 | if (h != NULL) | |
| 5881 | { | |
| 19e08130 AM |
5882 | struct elf_dyn_relocs *p; |
| 5883 | struct elf_dyn_relocs **head; | |
| 5884 | ||
| ec338859 | 5885 | head = &((struct ppc_link_hash_entry *) h)->dyn_relocs; |
| 19e08130 AM |
5886 | p = *head; |
| 5887 | if (p == NULL || p->sec != sec) | |
| 5888 | { | |
| 5889 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5890 | if (p == NULL) | |
| 5891 | return FALSE; | |
| 5892 | p->next = *head; | |
| 5893 | *head = p; | |
| 5894 | p->sec = sec; | |
| 5895 | p->count = 0; | |
| 5896 | p->pc_count = 0; | |
| 5897 | } | |
| 5898 | p->count += 1; | |
| 5899 | if (!must_be_dyn_reloc (info, r_type)) | |
| 5900 | p->pc_count += 1; | |
| 65f38f15 AM |
5901 | } |
| 5902 | else | |
| 5903 | { | |
| ec338859 AM |
5904 | /* Track dynamic relocs needed for local syms too. |
| 5905 | We really need local syms available to do this | |
| 5906 | easily. Oh well. */ | |
| 19e08130 AM |
5907 | struct ppc_dyn_relocs *p; |
| 5908 | struct ppc_dyn_relocs **head; | |
| 5909 | bfd_boolean is_ifunc; | |
| ec338859 | 5910 | asection *s; |
| 6edfbbad | 5911 | void *vpp; |
| 87d72d41 | 5912 | Elf_Internal_Sym *isym; |
| 6edfbbad | 5913 | |
| 87d72d41 AM |
5914 | isym = bfd_sym_from_r_symndx (&htab->sym_cache, |
| 5915 | abfd, r_symndx); | |
| 5916 | if (isym == NULL) | |
| b34976b6 | 5917 | return FALSE; |
| ec338859 | 5918 | |
| 87d72d41 AM |
5919 | s = bfd_section_from_elf_index (abfd, isym->st_shndx); |
| 5920 | if (s == NULL) | |
| 5921 | s = sec; | |
| 5922 | ||
| 6edfbbad | 5923 | vpp = &elf_section_data (s)->local_dynrel; |
| 19e08130 AM |
5924 | head = (struct ppc_dyn_relocs **) vpp; |
| 5925 | is_ifunc = ELF_ST_TYPE (isym->st_info) == STT_GNU_IFUNC; | |
| 5926 | p = *head; | |
| 5927 | if (p != NULL && p->sec == sec && p->ifunc != is_ifunc) | |
| 5928 | p = p->next; | |
| 5929 | if (p == NULL || p->sec != sec || p->ifunc != is_ifunc) | |
| 5930 | { | |
| 5931 | p = bfd_alloc (htab->elf.dynobj, sizeof *p); | |
| 5932 | if (p == NULL) | |
| 5933 | return FALSE; | |
| 5934 | p->next = *head; | |
| 5935 | *head = p; | |
| 5936 | p->sec = sec; | |
| 5937 | p->ifunc = is_ifunc; | |
| 5938 | p->count = 0; | |
| 5939 | } | |
| 5940 | p->count += 1; | |
| ec338859 | 5941 | } |
| 65f38f15 | 5942 | } |
| 5bd4f169 | 5943 | break; |
| 65f38f15 AM |
5944 | |
| 5945 | default: | |
| 96e0dda4 | 5946 | break; |
| 5bd4f169 AM |
5947 | } |
| 5948 | } | |
| 5949 | ||
| b34976b6 | 5950 | return TRUE; |
| 5bd4f169 AM |
5951 | } |
| 5952 | ||
| ee67d69a AM |
5953 | /* Merge backend specific data from an object file to the output |
| 5954 | object file when linking. */ | |
| 5955 | ||
| 5956 | static bfd_boolean | |
| 5957 | ppc64_elf_merge_private_bfd_data (bfd *ibfd, bfd *obfd) | |
| 5958 | { | |
| 5959 | unsigned long iflags, oflags; | |
| 5960 | ||
| 5961 | if ((ibfd->flags & BFD_LINKER_CREATED) != 0) | |
| 5962 | return TRUE; | |
| 5963 | ||
| 5964 | if (!is_ppc64_elf (ibfd) || !is_ppc64_elf (obfd)) | |
| 5965 | return TRUE; | |
| 5966 | ||
| 5967 | if (!_bfd_generic_verify_endian_match (ibfd, obfd)) | |
| 5968 | return FALSE; | |
| 5969 | ||
| 5970 | iflags = elf_elfheader (ibfd)->e_flags; | |
| 5971 | oflags = elf_elfheader (obfd)->e_flags; | |
| 5972 | ||
| f6c7c3e8 | 5973 | if (iflags & ~EF_PPC64_ABI) |
| ee67d69a AM |
5974 | { |
| 5975 | (*_bfd_error_handler) | |
| 5976 | (_("%B uses unknown e_flags 0x%lx"), ibfd, iflags); | |
| 5977 | bfd_set_error (bfd_error_bad_value); | |
| 5978 | return FALSE; | |
| 5979 | } | |
| f6c7c3e8 | 5980 | else if (iflags != oflags && iflags != 0) |
| ee67d69a AM |
5981 | { |
| 5982 | (*_bfd_error_handler) | |
| 5983 | (_("%B: ABI version %ld is not compatible with ABI version %ld output"), | |
| 5984 | ibfd, iflags, oflags); | |
| 5985 | bfd_set_error (bfd_error_bad_value); | |
| 5986 | return FALSE; | |
| 5987 | } | |
| 5988 | ||
| 5989 | /* Merge Tag_compatibility attributes and any common GNU ones. */ | |
| 5990 | _bfd_elf_merge_object_attributes (ibfd, obfd); | |
| 5991 | ||
| 5992 | return TRUE; | |
| 5993 | } | |
| 5994 | ||
| 5995 | static bfd_boolean | |
| 5996 | ppc64_elf_print_private_bfd_data (bfd *abfd, void *ptr) | |
| 5997 | { | |
| 5998 | /* Print normal ELF private data. */ | |
| 5999 | _bfd_elf_print_private_bfd_data (abfd, ptr); | |
| 6000 | ||
| 6001 | if (elf_elfheader (abfd)->e_flags != 0) | |
| 6002 | { | |
| 6003 | FILE *file = ptr; | |
| 6004 | ||
| 6005 | /* xgettext:c-format */ | |
| 6006 | fprintf (file, _("private flags = 0x%lx:"), | |
| 6007 | elf_elfheader (abfd)->e_flags); | |
| 6008 | ||
| 6009 | if ((elf_elfheader (abfd)->e_flags & EF_PPC64_ABI) != 0) | |
| 6010 | fprintf (file, _(" [abiv%ld]"), | |
| 6011 | elf_elfheader (abfd)->e_flags & EF_PPC64_ABI); | |
| 6012 | fputc ('\n', file); | |
| 6013 | } | |
| 6014 | ||
| 6015 | return TRUE; | |
| 6016 | } | |
| 6017 | ||
| 8387904d | 6018 | /* OFFSET in OPD_SEC specifies a function descriptor. Return the address |
| b53dfeb2 AM |
6019 | of the code entry point, and its section, which must be in the same |
| 6020 | object as OPD_SEC. Returns (bfd_vma) -1 on error. */ | |
| 8387904d AM |
6021 | |
| 6022 | static bfd_vma | |
| 6023 | opd_entry_value (asection *opd_sec, | |
| 6024 | bfd_vma offset, | |
| 6025 | asection **code_sec, | |
| aef36ac1 AM |
6026 | bfd_vma *code_off, |
| 6027 | bfd_boolean in_code_sec) | |
| 8387904d AM |
6028 | { |
| 6029 | bfd *opd_bfd = opd_sec->owner; | |
| 8860955f | 6030 | Elf_Internal_Rela *relocs; |
| 8387904d | 6031 | Elf_Internal_Rela *lo, *hi, *look; |
| 645ea6a9 | 6032 | bfd_vma val; |
| 8387904d | 6033 | |
| 9f296da3 AM |
6034 | /* No relocs implies we are linking a --just-symbols object, or looking |
| 6035 | at a final linked executable with addr2line or somesuch. */ | |
| 4b85d634 AM |
6036 | if (opd_sec->reloc_count == 0) |
| 6037 | { | |
| 729eabd5 | 6038 | bfd_byte *contents = ppc64_elf_tdata (opd_bfd)->opd.contents; |
| 3b36f7e6 | 6039 | |
| 729eabd5 AM |
6040 | if (contents == NULL) |
| 6041 | { | |
| 6042 | if (!bfd_malloc_and_get_section (opd_bfd, opd_sec, &contents)) | |
| 6043 | return (bfd_vma) -1; | |
| 6044 | ppc64_elf_tdata (opd_bfd)->opd.contents = contents; | |
| 6045 | } | |
| ee1e4ede | 6046 | |
| dbb3fbbb | 6047 | /* PR 17512: file: 64b9dfbb. */ |
| 451dfd38 | 6048 | if (offset + 7 >= opd_sec->size || offset + 7 < offset) |
| dbb3fbbb NC |
6049 | return (bfd_vma) -1; |
| 6050 | ||
| 729eabd5 | 6051 | val = bfd_get_64 (opd_bfd, contents + offset); |
| aef36ac1 AM |
6052 | if (code_sec != NULL) |
| 6053 | { | |
| 6054 | asection *sec, *likely = NULL; | |
| ee1e4ede | 6055 | |
| aef36ac1 | 6056 | if (in_code_sec) |
| 4b85d634 | 6057 | { |
| aef36ac1 AM |
6058 | sec = *code_sec; |
| 6059 | if (sec->vma <= val | |
| 6060 | && val < sec->vma + sec->size) | |
| 6061 | likely = sec; | |
| 6062 | else | |
| 6063 | val = -1; | |
| 6064 | } | |
| 6065 | else | |
| 6066 | for (sec = opd_bfd->sections; sec != NULL; sec = sec->next) | |
| 6067 | if (sec->vma <= val | |
| 6068 | && (sec->flags & SEC_LOAD) != 0 | |
| 6069 | && (sec->flags & SEC_ALLOC) != 0) | |
| 6070 | likely = sec; | |
| 6071 | if (likely != NULL) | |
| 6072 | { | |
| 6073 | *code_sec = likely; | |
| 6074 | if (code_off != NULL) | |
| 6075 | *code_off = val - likely->vma; | |
| 4b85d634 AM |
6076 | } |
| 6077 | } | |
| aef36ac1 | 6078 | return val; |
| 4b85d634 AM |
6079 | } |
| 6080 | ||
| 0c8d6e5c | 6081 | BFD_ASSERT (is_ppc64_elf (opd_bfd)); |
| 0ffa91dd | 6082 | |
| 729eabd5 | 6083 | relocs = ppc64_elf_tdata (opd_bfd)->opd.relocs; |
| 8860955f AM |
6084 | if (relocs == NULL) |
| 6085 | relocs = _bfd_elf_link_read_relocs (opd_bfd, opd_sec, NULL, NULL, TRUE); | |
| 877a8638 NC |
6086 | /* PR 17512: file: df8e1fd6. */ |
| 6087 | if (relocs == NULL) | |
| 6088 | return (bfd_vma) -1; | |
| 645ea6a9 | 6089 | |
| 8387904d | 6090 | /* Go find the opd reloc at the sym address. */ |
| 8860955f | 6091 | lo = relocs; |
| 8387904d | 6092 | hi = lo + opd_sec->reloc_count - 1; /* ignore last reloc */ |
| 645ea6a9 | 6093 | val = (bfd_vma) -1; |
| 8387904d AM |
6094 | while (lo < hi) |
| 6095 | { | |
| 6096 | look = lo + (hi - lo) / 2; | |
| 6097 | if (look->r_offset < offset) | |
| 6098 | lo = look + 1; | |
| 6099 | else if (look->r_offset > offset) | |
| 6100 | hi = look; | |
| 6101 | else | |
| 6102 | { | |
| 0ffa91dd NC |
6103 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (opd_bfd); |
| 6104 | ||
| 8387904d AM |
6105 | if (ELF64_R_TYPE (look->r_info) == R_PPC64_ADDR64 |
| 6106 | && ELF64_R_TYPE ((look + 1)->r_info) == R_PPC64_TOC) | |
| 6107 | { | |
| 6108 | unsigned long symndx = ELF64_R_SYM (look->r_info); | |
| b53dfeb2 | 6109 | asection *sec = NULL; |
| 8387904d | 6110 | |
| b53dfeb2 AM |
6111 | if (symndx >= symtab_hdr->sh_info |
| 6112 | && elf_sym_hashes (opd_bfd) != NULL) | |
| 8387904d AM |
6113 | { |
| 6114 | struct elf_link_hash_entry **sym_hashes; | |
| 6115 | struct elf_link_hash_entry *rh; | |
| 6116 | ||
| 6117 | sym_hashes = elf_sym_hashes (opd_bfd); | |
| 6118 | rh = sym_hashes[symndx - symtab_hdr->sh_info]; | |
| 128205bb AM |
6119 | if (rh != NULL) |
| 6120 | { | |
| 6121 | rh = elf_follow_link (rh); | |
| bb854a36 AM |
6122 | if (rh->root.type != bfd_link_hash_defined |
| 6123 | && rh->root.type != bfd_link_hash_defweak) | |
| 6124 | break; | |
| 6125 | if (rh->root.u.def.section->owner == opd_bfd) | |
| b53dfeb2 | 6126 | { |
| bb854a36 AM |
6127 | val = rh->root.u.def.value; |
| 6128 | sec = rh->root.u.def.section; | |
| b53dfeb2 AM |
6129 | } |
| 6130 | } | |
| 6131 | } | |
| 6132 | ||
| 6133 | if (sec == NULL) | |
| 6134 | { | |
| 6135 | Elf_Internal_Sym *sym; | |
| 6136 | ||
| 6137 | if (symndx < symtab_hdr->sh_info) | |
| 6138 | { | |
| 6139 | sym = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 6140 | if (sym == NULL) | |
| 6141 | { | |
| 6142 | size_t symcnt = symtab_hdr->sh_info; | |
| 6143 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, | |
| 6144 | symcnt, 0, | |
| 6145 | NULL, NULL, NULL); | |
| 6146 | if (sym == NULL) | |
| 6147 | break; | |
| 6148 | symtab_hdr->contents = (bfd_byte *) sym; | |
| 6149 | } | |
| 6150 | sym += symndx; | |
| 128205bb AM |
6151 | } |
| 6152 | else | |
| 6153 | { | |
| b53dfeb2 AM |
6154 | sym = bfd_elf_get_elf_syms (opd_bfd, symtab_hdr, |
| 6155 | 1, symndx, | |
| 6156 | NULL, NULL, NULL); | |
| 128205bb AM |
6157 | if (sym == NULL) |
| 6158 | break; | |
| 128205bb | 6159 | } |
| b53dfeb2 AM |
6160 | sec = bfd_section_from_elf_index (opd_bfd, sym->st_shndx); |
| 6161 | if (sec == NULL) | |
| 6162 | break; | |
| 6163 | BFD_ASSERT ((sec->flags & SEC_MERGE) == 0); | |
| 6164 | val = sym->st_value; | |
| 8387904d | 6165 | } |
| b53dfeb2 | 6166 | |
| 8387904d AM |
6167 | val += look->r_addend; |
| 6168 | if (code_off != NULL) | |
| 6169 | *code_off = val; | |
| 6170 | if (code_sec != NULL) | |
| aef36ac1 AM |
6171 | { |
| 6172 | if (in_code_sec && *code_sec != sec) | |
| 6173 | return -1; | |
| 6174 | else | |
| 6175 | *code_sec = sec; | |
| 6176 | } | |
| b53dfeb2 | 6177 | if (sec->output_section != NULL) |
| 8387904d | 6178 | val += sec->output_section->vma + sec->output_offset; |
| 8387904d AM |
6179 | } |
| 6180 | break; | |
| 6181 | } | |
| 6182 | } | |
| 645ea6a9 | 6183 | |
| 645ea6a9 | 6184 | return val; |
| 8387904d AM |
6185 | } |
| 6186 | ||
| aef36ac1 AM |
6187 | /* If the ELF symbol SYM might be a function in SEC, return the |
| 6188 | function size and set *CODE_OFF to the function's entry point, | |
| 6189 | otherwise return zero. */ | |
| 9f296da3 | 6190 | |
| aef36ac1 AM |
6191 | static bfd_size_type |
| 6192 | ppc64_elf_maybe_function_sym (const asymbol *sym, asection *sec, | |
| 6193 | bfd_vma *code_off) | |
| 9f296da3 | 6194 | { |
| aef36ac1 AM |
6195 | bfd_size_type size; |
| 6196 | ||
| 6197 | if ((sym->flags & (BSF_SECTION_SYM | BSF_FILE | BSF_OBJECT | |
| 6198 | | BSF_THREAD_LOCAL | BSF_RELC | BSF_SRELC)) != 0) | |
| 6199 | return 0; | |
| 6200 | ||
| 6201 | size = 0; | |
| 6202 | if (!(sym->flags & BSF_SYNTHETIC)) | |
| 6203 | size = ((elf_symbol_type *) sym)->internal_elf_sym.st_size; | |
| 6204 | ||
| 6205 | if (strcmp (sym->section->name, ".opd") == 0) | |
| 9f296da3 | 6206 | { |
| b07bca4e AM |
6207 | struct _opd_sec_data *opd = get_opd_info (sym->section); |
| 6208 | bfd_vma symval = sym->value; | |
| 6209 | ||
| 6210 | if (opd != NULL | |
| 6211 | && opd->adjust != NULL | |
| 6212 | && elf_section_data (sym->section)->relocs != NULL) | |
| 6213 | { | |
| 6214 | /* opd_entry_value will use cached relocs that have been | |
| 6215 | adjusted, but with raw symbols. That means both local | |
| 6216 | and global symbols need adjusting. */ | |
| 6217 | long adjust = opd->adjust[OPD_NDX (symval)]; | |
| 6218 | if (adjust == -1) | |
| 6219 | return 0; | |
| 6220 | symval += adjust; | |
| 6221 | } | |
| 6222 | ||
| 6223 | if (opd_entry_value (sym->section, symval, | |
| aef36ac1 AM |
6224 | &sec, code_off, TRUE) == (bfd_vma) -1) |
| 6225 | return 0; | |
| 6226 | /* An old ABI binary with dot-syms has a size of 24 on the .opd | |
| 6227 | symbol. This size has nothing to do with the code size of the | |
| 6228 | function, which is what we're supposed to return, but the | |
| 6229 | code size isn't available without looking up the dot-sym. | |
| 6230 | However, doing that would be a waste of time particularly | |
| 6231 | since elf_find_function will look at the dot-sym anyway. | |
| 6232 | Now, elf_find_function will keep the largest size of any | |
| 6233 | function sym found at the code address of interest, so return | |
| 6234 | 1 here to avoid it incorrectly caching a larger function size | |
| 6235 | for a small function. This does mean we return the wrong | |
| 6236 | size for a new-ABI function of size 24, but all that does is | |
| 6237 | disable caching for such functions. */ | |
| 6238 | if (size == 24) | |
| 6239 | size = 1; | |
| 9f296da3 | 6240 | } |
| aef36ac1 AM |
6241 | else |
| 6242 | { | |
| 6243 | if (sym->section != sec) | |
| 6244 | return 0; | |
| 6245 | *code_off = sym->value; | |
| 6246 | } | |
| 6247 | if (size == 0) | |
| 6248 | size = 1; | |
| 6249 | return size; | |
| 9f296da3 AM |
6250 | } |
| 6251 | ||
| 854b41e7 AM |
6252 | /* Return true if symbol is defined in a regular object file. */ |
| 6253 | ||
| 6254 | static bfd_boolean | |
| 6255 | is_static_defined (struct elf_link_hash_entry *h) | |
| 6256 | { | |
| 6257 | return ((h->root.type == bfd_link_hash_defined | |
| 6258 | || h->root.type == bfd_link_hash_defweak) | |
| 6259 | && h->root.u.def.section != NULL | |
| 6260 | && h->root.u.def.section->output_section != NULL); | |
| 6261 | } | |
| 6262 | ||
| b31867b6 AM |
6263 | /* If FDH is a function descriptor symbol, return the associated code |
| 6264 | entry symbol if it is defined. Return NULL otherwise. */ | |
| 6265 | ||
| 6266 | static struct ppc_link_hash_entry * | |
| 6267 | defined_code_entry (struct ppc_link_hash_entry *fdh) | |
| 6268 | { | |
| 6269 | if (fdh->is_func_descriptor) | |
| 6270 | { | |
| 6271 | struct ppc_link_hash_entry *fh = ppc_follow_link (fdh->oh); | |
| 6272 | if (fh->elf.root.type == bfd_link_hash_defined | |
| 6273 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6274 | return fh; | |
| 6275 | } | |
| 6276 | return NULL; | |
| 6277 | } | |
| 6278 | ||
| 6279 | /* If FH is a function code entry symbol, return the associated | |
| 6280 | function descriptor symbol if it is defined. Return NULL otherwise. */ | |
| 6281 | ||
| 6282 | static struct ppc_link_hash_entry * | |
| 6283 | defined_func_desc (struct ppc_link_hash_entry *fh) | |
| 6284 | { | |
| 6285 | if (fh->oh != NULL | |
| 6286 | && fh->oh->is_func_descriptor) | |
| 6287 | { | |
| 6288 | struct ppc_link_hash_entry *fdh = ppc_follow_link (fh->oh); | |
| 6289 | if (fdh->elf.root.type == bfd_link_hash_defined | |
| 6290 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 6291 | return fdh; | |
| 6292 | } | |
| 6293 | return NULL; | |
| 6294 | } | |
| 6295 | ||
| 74f0fb50 AM |
6296 | /* Mark all our entry sym sections, both opd and code section. */ |
| 6297 | ||
| 6298 | static void | |
| 6299 | ppc64_elf_gc_keep (struct bfd_link_info *info) | |
| 6300 | { | |
| 6301 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6302 | struct bfd_sym_chain *sym; | |
| 6303 | ||
| 4dfe6ac6 NC |
6304 | if (htab == NULL) |
| 6305 | return; | |
| 6306 | ||
| 74f0fb50 AM |
6307 | for (sym = info->gc_sym_list; sym != NULL; sym = sym->next) |
| 6308 | { | |
| b31867b6 | 6309 | struct ppc_link_hash_entry *eh, *fh; |
| 74f0fb50 AM |
6310 | asection *sec; |
| 6311 | ||
| 6312 | eh = (struct ppc_link_hash_entry *) | |
| b31867b6 | 6313 | elf_link_hash_lookup (&htab->elf, sym->name, FALSE, FALSE, TRUE); |
| 74f0fb50 AM |
6314 | if (eh == NULL) |
| 6315 | continue; | |
| 6316 | if (eh->elf.root.type != bfd_link_hash_defined | |
| 6317 | && eh->elf.root.type != bfd_link_hash_defweak) | |
| 6318 | continue; | |
| 6319 | ||
| b31867b6 AM |
6320 | fh = defined_code_entry (eh); |
| 6321 | if (fh != NULL) | |
| 74f0fb50 | 6322 | { |
| b31867b6 | 6323 | sec = fh->elf.root.u.def.section; |
| 74f0fb50 AM |
6324 | sec->flags |= SEC_KEEP; |
| 6325 | } | |
| 6326 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL | |
| 6327 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6328 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6329 | &sec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 AM |
6330 | sec->flags |= SEC_KEEP; |
| 6331 | ||
| 6332 | sec = eh->elf.root.u.def.section; | |
| 6333 | sec->flags |= SEC_KEEP; | |
| 6334 | } | |
| 6335 | } | |
| 6336 | ||
| 64d03ab5 AM |
6337 | /* Mark sections containing dynamically referenced symbols. When |
| 6338 | building shared libraries, we must assume that any visible symbol is | |
| 6339 | referenced. */ | |
| 6340 | ||
| 6341 | static bfd_boolean | |
| 6342 | ppc64_elf_gc_mark_dynamic_ref (struct elf_link_hash_entry *h, void *inf) | |
| 6343 | { | |
| 6344 | struct bfd_link_info *info = (struct bfd_link_info *) inf; | |
| 6345 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| b31867b6 | 6346 | struct ppc_link_hash_entry *fdh; |
| b407645f | 6347 | struct bfd_elf_dynamic_list *d = info->dynamic_list; |
| 64d03ab5 | 6348 | |
| 64d03ab5 | 6349 | /* Dynamic linking info is on the func descriptor sym. */ |
| b31867b6 AM |
6350 | fdh = defined_func_desc (eh); |
| 6351 | if (fdh != NULL) | |
| 6352 | eh = fdh; | |
| 64d03ab5 AM |
6353 | |
| 6354 | if ((eh->elf.root.type == bfd_link_hash_defined | |
| 6355 | || eh->elf.root.type == bfd_link_hash_defweak) | |
| 6356 | && (eh->elf.ref_dynamic | |
| 1c9177d9 | 6357 | || ((eh->elf.def_regular || ELF_COMMON_DEF_P (&eh->elf)) |
| 64d03ab5 | 6358 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_INTERNAL |
| 4c58e0d8 | 6359 | && ELF_ST_VISIBILITY (eh->elf.other) != STV_HIDDEN |
| 0e1862bb | 6360 | && (!bfd_link_executable (info) |
| b407645f AM |
6361 | || info->export_dynamic |
| 6362 | || (eh->elf.dynamic | |
| 6363 | && d != NULL | |
| 6364 | && (*d->match) (&d->head, NULL, eh->elf.root.root.string))) | |
| 4c58e0d8 AM |
6365 | && (strchr (eh->elf.root.root.string, ELF_VER_CHR) != NULL |
| 6366 | || !bfd_hide_sym_by_version (info->version_info, | |
| 6367 | eh->elf.root.root.string))))) | |
| 64d03ab5 AM |
6368 | { |
| 6369 | asection *code_sec; | |
| b31867b6 | 6370 | struct ppc_link_hash_entry *fh; |
| 64d03ab5 AM |
6371 | |
| 6372 | eh->elf.root.u.def.section->flags |= SEC_KEEP; | |
| 6373 | ||
| 6374 | /* Function descriptor syms cause the associated | |
| 6375 | function code sym section to be marked. */ | |
| b31867b6 AM |
6376 | fh = defined_code_entry (eh); |
| 6377 | if (fh != NULL) | |
| 6378 | { | |
| 6379 | code_sec = fh->elf.root.u.def.section; | |
| 6380 | code_sec->flags |= SEC_KEEP; | |
| 6381 | } | |
| 64d03ab5 AM |
6382 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6383 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6384 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6385 | &code_sec, NULL, FALSE) != (bfd_vma) -1) |
| 64d03ab5 AM |
6386 | code_sec->flags |= SEC_KEEP; |
| 6387 | } | |
| 6388 | ||
| 6389 | return TRUE; | |
| 6390 | } | |
| 6391 | ||
| 5bd4f169 AM |
6392 | /* Return the section that should be marked against GC for a given |
| 6393 | relocation. */ | |
| 6394 | ||
| 6395 | static asection * | |
| 4ce794b7 | 6396 | ppc64_elf_gc_mark_hook (asection *sec, |
| fb34365b | 6397 | struct bfd_link_info *info, |
| 4ce794b7 AM |
6398 | Elf_Internal_Rela *rel, |
| 6399 | struct elf_link_hash_entry *h, | |
| 6400 | Elf_Internal_Sym *sym) | |
| 5bd4f169 | 6401 | { |
| ccfa59ea AM |
6402 | asection *rsec; |
| 6403 | ||
| ccfa59ea AM |
6404 | /* Syms return NULL if we're marking .opd, so we avoid marking all |
| 6405 | function sections, as all functions are referenced in .opd. */ | |
| 6406 | rsec = NULL; | |
| 6407 | if (get_opd_info (sec) != NULL) | |
| 6408 | return rsec; | |
| 1e2f5b6e | 6409 | |
| 5bd4f169 AM |
6410 | if (h != NULL) |
| 6411 | { | |
| 04c9666a | 6412 | enum elf_ppc64_reloc_type r_type; |
| b31867b6 | 6413 | struct ppc_link_hash_entry *eh, *fh, *fdh; |
| a33d1f77 | 6414 | |
| 4ce794b7 | 6415 | r_type = ELF64_R_TYPE (rel->r_info); |
| a33d1f77 | 6416 | switch (r_type) |
| 5bd4f169 AM |
6417 | { |
| 6418 | case R_PPC64_GNU_VTINHERIT: | |
| 6419 | case R_PPC64_GNU_VTENTRY: | |
| 6420 | break; | |
| 6421 | ||
| 6422 | default: | |
| 6423 | switch (h->root.type) | |
| 6424 | { | |
| 6425 | case bfd_link_hash_defined: | |
| 6426 | case bfd_link_hash_defweak: | |
| ccfa59ea | 6427 | eh = (struct ppc_link_hash_entry *) h; |
| b31867b6 AM |
6428 | fdh = defined_func_desc (eh); |
| 6429 | if (fdh != NULL) | |
| 6430 | eh = fdh; | |
| 1e2f5b6e AM |
6431 | |
| 6432 | /* Function descriptor syms cause the associated | |
| 6433 | function code sym section to be marked. */ | |
| b31867b6 AM |
6434 | fh = defined_code_entry (eh); |
| 6435 | if (fh != NULL) | |
| ccfa59ea AM |
6436 | { |
| 6437 | /* They also mark their opd section. */ | |
| 74f0fb50 | 6438 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6439 | |
| b31867b6 | 6440 | rsec = fh->elf.root.u.def.section; |
| ccfa59ea | 6441 | } |
| 8387904d AM |
6442 | else if (get_opd_info (eh->elf.root.u.def.section) != NULL |
| 6443 | && opd_entry_value (eh->elf.root.u.def.section, | |
| 6444 | eh->elf.root.u.def.value, | |
| aef36ac1 | 6445 | &rsec, NULL, FALSE) != (bfd_vma) -1) |
| 74f0fb50 | 6446 | eh->elf.root.u.def.section->gc_mark = 1; |
| ccfa59ea | 6447 | else |
| 1e2f5b6e AM |
6448 | rsec = h->root.u.def.section; |
| 6449 | break; | |
| 5bd4f169 AM |
6450 | |
| 6451 | case bfd_link_hash_common: | |
| 1e2f5b6e AM |
6452 | rsec = h->root.u.c.p->section; |
| 6453 | break; | |
| 5bd4f169 AM |
6454 | |
| 6455 | default: | |
| fb34365b | 6456 | return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym); |
| 5bd4f169 AM |
6457 | } |
| 6458 | } | |
| 6459 | } | |
| 6460 | else | |
| 6461 | { | |
| 74f0fb50 | 6462 | struct _opd_sec_data *opd; |
| 1e2f5b6e AM |
6463 | |
| 6464 | rsec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 74f0fb50 AM |
6465 | opd = get_opd_info (rsec); |
| 6466 | if (opd != NULL && opd->func_sec != NULL) | |
| ccfa59ea | 6467 | { |
| 74f0fb50 | 6468 | rsec->gc_mark = 1; |
| ccfa59ea | 6469 | |
| 51aecdc5 | 6470 | rsec = opd->func_sec[OPD_NDX (sym->st_value + rel->r_addend)]; |
| ccfa59ea | 6471 | } |
| 5bd4f169 AM |
6472 | } |
| 6473 | ||
| 1e2f5b6e | 6474 | return rsec; |
| 5bd4f169 AM |
6475 | } |
| 6476 | ||
| 65f38f15 AM |
6477 | /* Update the .got, .plt. and dynamic reloc reference counts for the |
| 6478 | section being removed. */ | |
| 5bd4f169 | 6479 | |
| b34976b6 | 6480 | static bfd_boolean |
| 4ce794b7 AM |
6481 | ppc64_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info, |
| 6482 | asection *sec, const Elf_Internal_Rela *relocs) | |
| 5bd4f169 | 6483 | { |
| 411e1bfb | 6484 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
6485 | Elf_Internal_Shdr *symtab_hdr; |
| 6486 | struct elf_link_hash_entry **sym_hashes; | |
| 411e1bfb | 6487 | struct got_entry **local_got_ents; |
| 5bd4f169 | 6488 | const Elf_Internal_Rela *rel, *relend; |
| 5bd4f169 | 6489 | |
| 0e1862bb | 6490 | if (bfd_link_relocatable (info)) |
| 7dda2462 TG |
6491 | return TRUE; |
| 6492 | ||
| 680a3378 AM |
6493 | if ((sec->flags & SEC_ALLOC) == 0) |
| 6494 | return TRUE; | |
| 6495 | ||
| ec338859 AM |
6496 | elf_section_data (sec)->local_dynrel = NULL; |
| 6497 | ||
| 411e1bfb | 6498 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6499 | if (htab == NULL) |
| 6500 | return FALSE; | |
| 6501 | ||
| 0ffa91dd | 6502 | symtab_hdr = &elf_symtab_hdr (abfd); |
| 5bd4f169 | 6503 | sym_hashes = elf_sym_hashes (abfd); |
| 411e1bfb | 6504 | local_got_ents = elf_local_got_ents (abfd); |
| 5bd4f169 AM |
6505 | |
| 6506 | relend = relocs + sec->reloc_count; | |
| 6507 | for (rel = relocs; rel < relend; rel++) | |
| a33d1f77 AM |
6508 | { |
| 6509 | unsigned long r_symndx; | |
| 04c9666a | 6510 | enum elf_ppc64_reloc_type r_type; |
| 58ac9f71 | 6511 | struct elf_link_hash_entry *h = NULL; |
| cbf95972 | 6512 | struct plt_entry **plt_list; |
| f961d9dd | 6513 | unsigned char tls_type = 0; |
| 5bd4f169 | 6514 | |
| a33d1f77 | 6515 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 4ce794b7 | 6516 | r_type = ELF64_R_TYPE (rel->r_info); |
| 58ac9f71 AM |
6517 | if (r_symndx >= symtab_hdr->sh_info) |
| 6518 | { | |
| 6519 | struct ppc_link_hash_entry *eh; | |
| 6061a67d AM |
6520 | struct elf_dyn_relocs **pp; |
| 6521 | struct elf_dyn_relocs *p; | |
| 58ac9f71 AM |
6522 | |
| 6523 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 6524 | h = elf_follow_link (h); |
| 58ac9f71 AM |
6525 | eh = (struct ppc_link_hash_entry *) h; |
| 6526 | ||
| 6527 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next) | |
| 6528 | if (p->sec == sec) | |
| 6529 | { | |
| 6530 | /* Everything must go for SEC. */ | |
| 6531 | *pp = p->next; | |
| 6532 | break; | |
| 6533 | } | |
| 6534 | } | |
| 6535 | ||
| a33d1f77 AM |
6536 | switch (r_type) |
| 6537 | { | |
| 411e1bfb AM |
6538 | case R_PPC64_GOT_TLSLD16: |
| 6539 | case R_PPC64_GOT_TLSLD16_LO: | |
| 6540 | case R_PPC64_GOT_TLSLD16_HI: | |
| 6541 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 6542 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
6543 | goto dogot; |
| 6544 | ||
| 6545 | case R_PPC64_GOT_TLSGD16: | |
| 6546 | case R_PPC64_GOT_TLSGD16_LO: | |
| 6547 | case R_PPC64_GOT_TLSGD16_HI: | |
| 6548 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 6549 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
6550 | goto dogot; |
| 6551 | ||
| 6552 | case R_PPC64_GOT_TPREL16_DS: | |
| 6553 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 6554 | case R_PPC64_GOT_TPREL16_HI: | |
| 6555 | case R_PPC64_GOT_TPREL16_HA: | |
| 6556 | tls_type = TLS_TLS | TLS_TPREL; | |
| 6557 | goto dogot; | |
| 6558 | ||
| 6559 | case R_PPC64_GOT_DTPREL16_DS: | |
| 6560 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 6561 | case R_PPC64_GOT_DTPREL16_HI: | |
| 6562 | case R_PPC64_GOT_DTPREL16_HA: | |
| 6563 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 6564 | goto dogot; | |
| 6565 | ||
| a33d1f77 AM |
6566 | case R_PPC64_GOT16: |
| 6567 | case R_PPC64_GOT16_DS: | |
| 6568 | case R_PPC64_GOT16_HA: | |
| 6569 | case R_PPC64_GOT16_HI: | |
| 6570 | case R_PPC64_GOT16_LO: | |
| 6571 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb AM |
6572 | dogot: |
| 6573 | { | |
| 6574 | struct got_entry *ent; | |
| 6575 | ||
| 58ac9f71 AM |
6576 | if (h != NULL) |
| 6577 | ent = h->got.glist; | |
| 411e1bfb AM |
6578 | else |
| 6579 | ent = local_got_ents[r_symndx]; | |
| 6580 | ||
| 6581 | for (; ent != NULL; ent = ent->next) | |
| 6582 | if (ent->addend == rel->r_addend | |
| e717da7e | 6583 | && ent->owner == abfd |
| 411e1bfb AM |
6584 | && ent->tls_type == tls_type) |
| 6585 | break; | |
| 6586 | if (ent == NULL) | |
| 6587 | abort (); | |
| 6588 | if (ent->got.refcount > 0) | |
| 6589 | ent->got.refcount -= 1; | |
| 6590 | } | |
| a33d1f77 | 6591 | break; |
| 65f38f15 | 6592 | |
| a33d1f77 AM |
6593 | case R_PPC64_PLT16_HA: |
| 6594 | case R_PPC64_PLT16_HI: | |
| 6595 | case R_PPC64_PLT16_LO: | |
| 6596 | case R_PPC64_PLT32: | |
| 6597 | case R_PPC64_PLT64: | |
| 721956f4 AM |
6598 | case R_PPC64_REL14: |
| 6599 | case R_PPC64_REL14_BRNTAKEN: | |
| 6600 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 | 6601 | case R_PPC64_REL24: |
| cbf95972 | 6602 | plt_list = NULL; |
| 58ac9f71 | 6603 | if (h != NULL) |
| cbf95972 AM |
6604 | plt_list = &h->plt.plist; |
| 6605 | else if (local_got_ents != NULL) | |
| 6606 | { | |
| 6607 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 6608 | (local_got_ents + symtab_hdr->sh_info); | |
| 6609 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 6610 | (local_plt + symtab_hdr->sh_info); | |
| 6611 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 6612 | plt_list = local_plt + r_symndx; | |
| 6613 | } | |
| 6614 | if (plt_list) | |
| 5d1634d7 | 6615 | { |
| 411e1bfb AM |
6616 | struct plt_entry *ent; |
| 6617 | ||
| cbf95972 | 6618 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6619 | if (ent->addend == rel->r_addend) |
| 6620 | break; | |
| 7c6c1722 | 6621 | if (ent != NULL && ent->plt.refcount > 0) |
| 411e1bfb | 6622 | ent->plt.refcount -= 1; |
| 5d1634d7 | 6623 | } |
| e86ce104 | 6624 | break; |
| 5d1634d7 | 6625 | |
| a33d1f77 AM |
6626 | default: |
| 6627 | break; | |
| 6628 | } | |
| 6629 | } | |
| b34976b6 | 6630 | return TRUE; |
| 5bd4f169 AM |
6631 | } |
| 6632 | ||
| deb0e272 AM |
6633 | /* The maximum size of .sfpr. */ |
| 6634 | #define SFPR_MAX (218*4) | |
| 6635 | ||
| 6636 | struct sfpr_def_parms | |
| 6637 | { | |
| 699733f6 AM |
6638 | const char name[12]; |
| 6639 | unsigned char lo, hi; | |
| deb0e272 AM |
6640 | bfd_byte * (*write_ent) (bfd *, bfd_byte *, int); |
| 6641 | bfd_byte * (*write_tail) (bfd *, bfd_byte *, int); | |
| 6642 | }; | |
| 6643 | ||
| a4b6fadd AM |
6644 | /* Auto-generate _save*, _rest* functions in .sfpr. |
| 6645 | If STUB_SEC is non-null, define alias symbols in STUB_SEC | |
| 6646 | instead. */ | |
| deb0e272 | 6647 | |
| 4dfe6ac6 | 6648 | static bfd_boolean |
| a4b6fadd AM |
6649 | sfpr_define (struct bfd_link_info *info, |
| 6650 | const struct sfpr_def_parms *parm, | |
| 6651 | asection *stub_sec) | |
| deb0e272 AM |
6652 | { |
| 6653 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 6654 | unsigned int i; | |
| 6655 | size_t len = strlen (parm->name); | |
| 6656 | bfd_boolean writing = FALSE; | |
| 699733f6 | 6657 | char sym[16]; |
| deb0e272 | 6658 | |
| 4dfe6ac6 NC |
6659 | if (htab == NULL) |
| 6660 | return FALSE; | |
| 6661 | ||
| deb0e272 AM |
6662 | memcpy (sym, parm->name, len); |
| 6663 | sym[len + 2] = 0; | |
| 6664 | ||
| 6665 | for (i = parm->lo; i <= parm->hi; i++) | |
| 6666 | { | |
| a4b6fadd | 6667 | struct ppc_link_hash_entry *h; |
| deb0e272 AM |
6668 | |
| 6669 | sym[len + 0] = i / 10 + '0'; | |
| 6670 | sym[len + 1] = i % 10 + '0'; | |
| a4b6fadd | 6671 | h = (struct ppc_link_hash_entry *) |
| b32547cd | 6672 | elf_link_hash_lookup (&htab->elf, sym, writing, TRUE, TRUE); |
| a4b6fadd | 6673 | if (stub_sec != NULL) |
| deb0e272 | 6674 | { |
| a4b6fadd AM |
6675 | if (h != NULL |
| 6676 | && h->elf.root.type == bfd_link_hash_defined | |
| 6677 | && h->elf.root.u.def.section == htab->sfpr) | |
| 6678 | { | |
| 6679 | struct elf_link_hash_entry *s; | |
| 6680 | char buf[32]; | |
| 6681 | sprintf (buf, "%08x.%s", stub_sec->id & 0xffffffff, sym); | |
| 6682 | s = elf_link_hash_lookup (&htab->elf, buf, TRUE, TRUE, FALSE); | |
| 6683 | if (s == NULL) | |
| 6684 | return FALSE; | |
| 6685 | if (s->root.type == bfd_link_hash_new | |
| 6686 | || (s->root.type = bfd_link_hash_defined | |
| 6687 | && s->root.u.def.section == stub_sec)) | |
| 6688 | { | |
| 6689 | s->root.type = bfd_link_hash_defined; | |
| 6690 | s->root.u.def.section = stub_sec; | |
| 6691 | s->root.u.def.value = (stub_sec->size | |
| 6692 | + h->elf.root.u.def.value); | |
| 6693 | s->ref_regular = 1; | |
| 6694 | s->def_regular = 1; | |
| 6695 | s->ref_regular_nonweak = 1; | |
| 6696 | s->forced_local = 1; | |
| 6697 | s->non_elf = 0; | |
| 6698 | s->root.linker_def = 1; | |
| 6699 | } | |
| 6700 | } | |
| 6701 | continue; | |
| 6702 | } | |
| 6703 | if (h != NULL) | |
| 6704 | { | |
| 6705 | h->save_res = 1; | |
| 6706 | if (!h->elf.def_regular) | |
| deb0e272 | 6707 | { |
| a4b6fadd AM |
6708 | h->elf.root.type = bfd_link_hash_defined; |
| 6709 | h->elf.root.u.def.section = htab->sfpr; | |
| 6710 | h->elf.root.u.def.value = htab->sfpr->size; | |
| 6711 | h->elf.type = STT_FUNC; | |
| 6712 | h->elf.def_regular = 1; | |
| b32547cd | 6713 | h->elf.non_elf = 0; |
| a4b6fadd AM |
6714 | _bfd_elf_link_hash_hide_symbol (info, &h->elf, TRUE); |
| 6715 | writing = TRUE; | |
| deb0e272 | 6716 | if (htab->sfpr->contents == NULL) |
| a4b6fadd AM |
6717 | { |
| 6718 | htab->sfpr->contents = bfd_alloc (htab->elf.dynobj, SFPR_MAX); | |
| 6719 | if (htab->sfpr->contents == NULL) | |
| 6720 | return FALSE; | |
| 6721 | } | |
| deb0e272 AM |
6722 | } |
| 6723 | } | |
| 6724 | if (writing) | |
| 6725 | { | |
| 6726 | bfd_byte *p = htab->sfpr->contents + htab->sfpr->size; | |
| 6727 | if (i != parm->hi) | |
| 6728 | p = (*parm->write_ent) (htab->elf.dynobj, p, i); | |
| 6729 | else | |
| 6730 | p = (*parm->write_tail) (htab->elf.dynobj, p, i); | |
| 6731 | htab->sfpr->size = p - htab->sfpr->contents; | |
| 6732 | } | |
| 6733 | } | |
| 6734 | ||
| 6735 | return TRUE; | |
| 6736 | } | |
| 6737 | ||
| 6738 | static bfd_byte * | |
| 6739 | savegpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6740 | { | |
| 6741 | bfd_put_32 (abfd, STD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6742 | return p + 4; | |
| 6743 | } | |
| 6744 | ||
| 6745 | static bfd_byte * | |
| 6746 | savegpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6747 | { | |
| 6748 | p = savegpr0 (abfd, p, r); | |
| a078d95a | 6749 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6750 | p = p + 4; |
| 6751 | bfd_put_32 (abfd, BLR, p); | |
| 6752 | return p + 4; | |
| 6753 | } | |
| 6754 | ||
| 6755 | static bfd_byte * | |
| 6756 | restgpr0 (bfd *abfd, bfd_byte *p, int r) | |
| 6757 | { | |
| 6758 | bfd_put_32 (abfd, LD_R0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6759 | return p + 4; | |
| 6760 | } | |
| 6761 | ||
| 6762 | static bfd_byte * | |
| 6763 | restgpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6764 | { | |
| a078d95a | 6765 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6766 | p = p + 4; |
| 6767 | p = restgpr0 (abfd, p, r); | |
| 6768 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6769 | p = p + 4; | |
| 6770 | if (r == 29) | |
| 6771 | { | |
| 6772 | p = restgpr0 (abfd, p, 30); | |
| 6773 | p = restgpr0 (abfd, p, 31); | |
| 6774 | } | |
| 6775 | bfd_put_32 (abfd, BLR, p); | |
| 6776 | return p + 4; | |
| 6777 | } | |
| 6778 | ||
| 6779 | static bfd_byte * | |
| 6780 | savegpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6781 | { | |
| 6782 | bfd_put_32 (abfd, STD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6783 | return p + 4; | |
| 6784 | } | |
| 6785 | ||
| 6786 | static bfd_byte * | |
| 6787 | savegpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6788 | { | |
| 6789 | p = savegpr1 (abfd, p, r); | |
| 6790 | bfd_put_32 (abfd, BLR, p); | |
| 6791 | return p + 4; | |
| 6792 | } | |
| 6793 | ||
| 6794 | static bfd_byte * | |
| 6795 | restgpr1 (bfd *abfd, bfd_byte *p, int r) | |
| 6796 | { | |
| 6797 | bfd_put_32 (abfd, LD_R0_0R12 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6798 | return p + 4; | |
| 6799 | } | |
| 6800 | ||
| 6801 | static bfd_byte * | |
| 6802 | restgpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6803 | { | |
| 6804 | p = restgpr1 (abfd, p, r); | |
| 6805 | bfd_put_32 (abfd, BLR, p); | |
| 6806 | return p + 4; | |
| 6807 | } | |
| 6808 | ||
| 6809 | static bfd_byte * | |
| 6810 | savefpr (bfd *abfd, bfd_byte *p, int r) | |
| 6811 | { | |
| 6812 | bfd_put_32 (abfd, STFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6813 | return p + 4; | |
| 6814 | } | |
| 6815 | ||
| 6816 | static bfd_byte * | |
| 6817 | savefpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6818 | { | |
| 6819 | p = savefpr (abfd, p, r); | |
| a078d95a | 6820 | bfd_put_32 (abfd, STD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6821 | p = p + 4; |
| 6822 | bfd_put_32 (abfd, BLR, p); | |
| 6823 | return p + 4; | |
| 6824 | } | |
| 6825 | ||
| 6826 | static bfd_byte * | |
| 6827 | restfpr (bfd *abfd, bfd_byte *p, int r) | |
| 6828 | { | |
| 6829 | bfd_put_32 (abfd, LFD_FR0_0R1 + (r << 21) + (1 << 16) - (32 - r) * 8, p); | |
| 6830 | return p + 4; | |
| 6831 | } | |
| 6832 | ||
| 6833 | static bfd_byte * | |
| 6834 | restfpr0_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6835 | { | |
| a078d95a | 6836 | bfd_put_32 (abfd, LD_R0_0R1 + STK_LR, p); |
| deb0e272 AM |
6837 | p = p + 4; |
| 6838 | p = restfpr (abfd, p, r); | |
| 6839 | bfd_put_32 (abfd, MTLR_R0, p); | |
| 6840 | p = p + 4; | |
| 6841 | if (r == 29) | |
| 6842 | { | |
| 6843 | p = restfpr (abfd, p, 30); | |
| 6844 | p = restfpr (abfd, p, 31); | |
| 6845 | } | |
| 6846 | bfd_put_32 (abfd, BLR, p); | |
| 6847 | return p + 4; | |
| 6848 | } | |
| 6849 | ||
| 6850 | static bfd_byte * | |
| 6851 | savefpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6852 | { | |
| 6853 | p = savefpr (abfd, p, r); | |
| 6854 | bfd_put_32 (abfd, BLR, p); | |
| 6855 | return p + 4; | |
| 6856 | } | |
| 6857 | ||
| 6858 | static bfd_byte * | |
| 6859 | restfpr1_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6860 | { | |
| 6861 | p = restfpr (abfd, p, r); | |
| 6862 | bfd_put_32 (abfd, BLR, p); | |
| 6863 | return p + 4; | |
| 6864 | } | |
| 6865 | ||
| 6866 | static bfd_byte * | |
| 6867 | savevr (bfd *abfd, bfd_byte *p, int r) | |
| 6868 | { | |
| 6869 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6870 | p = p + 4; | |
| 6871 | bfd_put_32 (abfd, STVX_VR0_R12_R0 + (r << 21), p); | |
| 6872 | return p + 4; | |
| 6873 | } | |
| 6874 | ||
| 6875 | static bfd_byte * | |
| 6876 | savevr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6877 | { | |
| 6878 | p = savevr (abfd, p, r); | |
| 6879 | bfd_put_32 (abfd, BLR, p); | |
| 6880 | return p + 4; | |
| 6881 | } | |
| 6882 | ||
| 6883 | static bfd_byte * | |
| 6884 | restvr (bfd *abfd, bfd_byte *p, int r) | |
| 6885 | { | |
| 6886 | bfd_put_32 (abfd, LI_R12_0 + (1 << 16) - (32 - r) * 16, p); | |
| 6887 | p = p + 4; | |
| 6888 | bfd_put_32 (abfd, LVX_VR0_R12_R0 + (r << 21), p); | |
| 6889 | return p + 4; | |
| 6890 | } | |
| 6891 | ||
| 6892 | static bfd_byte * | |
| 6893 | restvr_tail (bfd *abfd, bfd_byte *p, int r) | |
| 6894 | { | |
| 6895 | p = restvr (abfd, p, r); | |
| 6896 | bfd_put_32 (abfd, BLR, p); | |
| 6897 | return p + 4; | |
| 6898 | } | |
| 6899 | ||
| e86ce104 AM |
6900 | /* Called via elf_link_hash_traverse to transfer dynamic linking |
| 6901 | information on function code symbol entries to their corresponding | |
| 6902 | function descriptor symbol entries. */ | |
| deb0e272 | 6903 | |
| b34976b6 | 6904 | static bfd_boolean |
| 4ce794b7 | 6905 | func_desc_adjust (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 6906 | { |
| e86ce104 | 6907 | struct bfd_link_info *info; |
| 65f38f15 | 6908 | struct ppc_link_hash_table *htab; |
| 411e1bfb | 6909 | struct plt_entry *ent; |
| 50bc7936 AM |
6910 | struct ppc_link_hash_entry *fh; |
| 6911 | struct ppc_link_hash_entry *fdh; | |
| 6912 | bfd_boolean force_local; | |
| 5bd4f169 | 6913 | |
| 50bc7936 AM |
6914 | fh = (struct ppc_link_hash_entry *) h; |
| 6915 | if (fh->elf.root.type == bfd_link_hash_indirect) | |
| b34976b6 | 6916 | return TRUE; |
| e86ce104 | 6917 | |
| 4ce794b7 | 6918 | info = inf; |
| 65f38f15 | 6919 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
6920 | if (htab == NULL) |
| 6921 | return FALSE; | |
| 5bd4f169 | 6922 | |
| c09bdfe5 AM |
6923 | /* Resolve undefined references to dot-symbols as the value |
| 6924 | in the function descriptor, if we have one in a regular object. | |
| 6925 | This is to satisfy cases like ".quad .foo". Calls to functions | |
| 6926 | in dynamic objects are handled elsewhere. */ | |
| 6927 | if (fh->elf.root.type == bfd_link_hash_undefweak | |
| 6928 | && fh->was_undefined | |
| b31867b6 AM |
6929 | && (fdh = defined_func_desc (fh)) != NULL |
| 6930 | && get_opd_info (fdh->elf.root.u.def.section) != NULL | |
| 6931 | && opd_entry_value (fdh->elf.root.u.def.section, | |
| 6932 | fdh->elf.root.u.def.value, | |
| c09bdfe5 | 6933 | &fh->elf.root.u.def.section, |
| aef36ac1 | 6934 | &fh->elf.root.u.def.value, FALSE) != (bfd_vma) -1) |
| c09bdfe5 | 6935 | { |
| b31867b6 | 6936 | fh->elf.root.type = fdh->elf.root.type; |
| f5385ebf | 6937 | fh->elf.forced_local = 1; |
| b31867b6 AM |
6938 | fh->elf.def_regular = fdh->elf.def_regular; |
| 6939 | fh->elf.def_dynamic = fdh->elf.def_dynamic; | |
| c09bdfe5 AM |
6940 | } |
| 6941 | ||
| e86ce104 AM |
6942 | /* If this is a function code symbol, transfer dynamic linking |
| 6943 | information to the function descriptor symbol. */ | |
| 50bc7936 | 6944 | if (!fh->is_func) |
| b34976b6 | 6945 | return TRUE; |
| e86ce104 | 6946 | |
| 50bc7936 | 6947 | for (ent = fh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 411e1bfb AM |
6948 | if (ent->plt.refcount > 0) |
| 6949 | break; | |
| 50bc7936 AM |
6950 | if (ent == NULL |
| 6951 | || fh->elf.root.root.string[0] != '.' | |
| 6952 | || fh->elf.root.root.string[1] == '\0') | |
| 6953 | return TRUE; | |
| 5bd4f169 | 6954 | |
| 50bc7936 AM |
6955 | /* Find the corresponding function descriptor symbol. Create it |
| 6956 | as undefined if necessary. */ | |
| 5bd4f169 | 6957 | |
| b31867b6 | 6958 | fdh = lookup_fdh (fh, htab); |
| 50bc7936 | 6959 | if (fdh == NULL |
| 0e1862bb | 6960 | && !bfd_link_executable (info) |
| 50bc7936 AM |
6961 | && (fh->elf.root.type == bfd_link_hash_undefined |
| 6962 | || fh->elf.root.type == bfd_link_hash_undefweak)) | |
| 6963 | { | |
| 908b32fc | 6964 | fdh = make_fdh (info, fh); |
| bb700d78 AM |
6965 | if (fdh == NULL) |
| 6966 | return FALSE; | |
| 50bc7936 | 6967 | } |
| 648cca2c | 6968 | |
| 908b32fc | 6969 | /* Fake function descriptors are made undefweak. If the function |
| 433817dd AM |
6970 | code symbol is strong undefined, make the fake sym the same. |
| 6971 | If the function code symbol is defined, then force the fake | |
| 6972 | descriptor local; We can't support overriding of symbols in a | |
| 6973 | shared library on a fake descriptor. */ | |
| 908b32fc AM |
6974 | |
| 6975 | if (fdh != NULL | |
| 6976 | && fdh->fake | |
| 433817dd | 6977 | && fdh->elf.root.type == bfd_link_hash_undefweak) |
| 908b32fc | 6978 | { |
| 433817dd AM |
6979 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 6980 | { | |
| 6981 | fdh->elf.root.type = bfd_link_hash_undefined; | |
| 6982 | bfd_link_add_undef (&htab->elf.root, &fdh->elf.root); | |
| 6983 | } | |
| 6984 | else if (fh->elf.root.type == bfd_link_hash_defined | |
| 6985 | || fh->elf.root.type == bfd_link_hash_defweak) | |
| 6986 | { | |
| 6987 | _bfd_elf_link_hash_hide_symbol (info, &fdh->elf, TRUE); | |
| 6988 | } | |
| 908b32fc AM |
6989 | } |
| 6990 | ||
| 50bc7936 | 6991 | if (fdh != NULL |
| f5385ebf | 6992 | && !fdh->elf.forced_local |
| 0e1862bb | 6993 | && (!bfd_link_executable (info) |
| f5385ebf AM |
6994 | || fdh->elf.def_dynamic |
| 6995 | || fdh->elf.ref_dynamic | |
| 50bc7936 AM |
6996 | || (fdh->elf.root.type == bfd_link_hash_undefweak |
| 6997 | && ELF_ST_VISIBILITY (fdh->elf.other) == STV_DEFAULT))) | |
| 6998 | { | |
| 6999 | if (fdh->elf.dynindx == -1) | |
| c152c796 | 7000 | if (! bfd_elf_link_record_dynamic_symbol (info, &fdh->elf)) |
| 50bc7936 | 7001 | return FALSE; |
| f5385ebf AM |
7002 | fdh->elf.ref_regular |= fh->elf.ref_regular; |
| 7003 | fdh->elf.ref_dynamic |= fh->elf.ref_dynamic; | |
| 7004 | fdh->elf.ref_regular_nonweak |= fh->elf.ref_regular_nonweak; | |
| 7005 | fdh->elf.non_got_ref |= fh->elf.non_got_ref; | |
| 50bc7936 | 7006 | if (ELF_ST_VISIBILITY (fh->elf.other) == STV_DEFAULT) |
| e86ce104 | 7007 | { |
| 40d16e0b | 7008 | move_plt_plist (fh, fdh); |
| f5385ebf | 7009 | fdh->elf.needs_plt = 1; |
| e86ce104 | 7010 | } |
| 50bc7936 | 7011 | fdh->is_func_descriptor = 1; |
| 34814b9f AM |
7012 | fdh->oh = fh; |
| 7013 | fh->oh = fdh; | |
| e86ce104 AM |
7014 | } |
| 7015 | ||
| 50bc7936 AM |
7016 | /* Now that the info is on the function descriptor, clear the |
| 7017 | function code sym info. Any function code syms for which we | |
| 7018 | don't have a definition in a regular file, we force local. | |
| 7019 | This prevents a shared library from exporting syms that have | |
| 7020 | been imported from another library. Function code syms that | |
| 7021 | are really in the library we must leave global to prevent the | |
| 7022 | linker dragging in a definition from a static library. */ | |
| 93f3fa99 AM |
7023 | force_local = (!fh->elf.def_regular |
| 7024 | || fdh == NULL | |
| 7025 | || !fdh->elf.def_regular | |
| 7026 | || fdh->elf.forced_local); | |
| 50bc7936 AM |
7027 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| 7028 | ||
| b34976b6 | 7029 | return TRUE; |
| e86ce104 | 7030 | } |
| 40b8271b | 7031 | |
| a4b6fadd AM |
7032 | static const struct sfpr_def_parms save_res_funcs[] = |
| 7033 | { | |
| 7034 | { "_savegpr0_", 14, 31, savegpr0, savegpr0_tail }, | |
| 7035 | { "_restgpr0_", 14, 29, restgpr0, restgpr0_tail }, | |
| 7036 | { "_restgpr0_", 30, 31, restgpr0, restgpr0_tail }, | |
| 7037 | { "_savegpr1_", 14, 31, savegpr1, savegpr1_tail }, | |
| 7038 | { "_restgpr1_", 14, 31, restgpr1, restgpr1_tail }, | |
| 7039 | { "_savefpr_", 14, 31, savefpr, savefpr0_tail }, | |
| 7040 | { "_restfpr_", 14, 29, restfpr, restfpr0_tail }, | |
| 7041 | { "_restfpr_", 30, 31, restfpr, restfpr0_tail }, | |
| 7042 | { "._savef", 14, 31, savefpr, savefpr1_tail }, | |
| 7043 | { "._restf", 14, 31, restfpr, restfpr1_tail }, | |
| 7044 | { "_savevr_", 20, 31, savevr, savevr_tail }, | |
| 7045 | { "_restvr_", 20, 31, restvr, restvr_tail } | |
| 7046 | }; | |
| 7047 | ||
| e86ce104 | 7048 | /* Called near the start of bfd_elf_size_dynamic_sections. We use |
| 82bd7b59 AM |
7049 | this hook to a) provide some gcc support functions, and b) transfer |
| 7050 | dynamic linking information gathered so far on function code symbol | |
| 7051 | entries, to their corresponding function descriptor symbol entries. */ | |
| deb0e272 | 7052 | |
| b34976b6 | 7053 | static bfd_boolean |
| 4ce794b7 AM |
7054 | ppc64_elf_func_desc_adjust (bfd *obfd ATTRIBUTE_UNUSED, |
| 7055 | struct bfd_link_info *info) | |
| e86ce104 AM |
7056 | { |
| 7057 | struct ppc_link_hash_table *htab; | |
| 7058 | ||
| 7059 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7060 | if (htab == NULL) |
| 7061 | return FALSE; | |
| 7062 | ||
| b32547cd AM |
7063 | /* Provide any missing _save* and _rest* functions. */ |
| 7064 | if (htab->sfpr != NULL) | |
| 7065 | { | |
| 7066 | unsigned int i; | |
| 7067 | ||
| 7068 | htab->sfpr->size = 0; | |
| 7069 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 7070 | if (!sfpr_define (info, &save_res_funcs[i], NULL)) | |
| 7071 | return FALSE; | |
| 7072 | if (htab->sfpr->size == 0) | |
| 7073 | htab->sfpr->flags |= SEC_EXCLUDE; | |
| 7074 | } | |
| 7075 | ||
| 7076 | if (bfd_link_relocatable (info)) | |
| 7077 | return TRUE; | |
| 7078 | ||
| 7079 | if (htab->elf.hgot != NULL) | |
| dba6fa9b AM |
7080 | { |
| 7081 | _bfd_elf_link_hash_hide_symbol (info, htab->elf.hgot, TRUE); | |
| 7082 | /* Make .TOC. defined so as to prevent it being made dynamic. | |
| 7083 | The wrong value here is fixed later in ppc64_elf_set_toc. */ | |
| 43417696 AM |
7084 | if (!htab->elf.hgot->def_regular |
| 7085 | || htab->elf.hgot->root.type != bfd_link_hash_defined) | |
| 7086 | { | |
| 7087 | htab->elf.hgot->root.type = bfd_link_hash_defined; | |
| 7088 | htab->elf.hgot->root.u.def.value = 0; | |
| 7089 | htab->elf.hgot->root.u.def.section = bfd_abs_section_ptr; | |
| 7090 | htab->elf.hgot->def_regular = 1; | |
| 7091 | htab->elf.hgot->root.linker_def = 1; | |
| 7092 | } | |
| dba6fa9b | 7093 | htab->elf.hgot->type = STT_OBJECT; |
| dba6fa9b AM |
7094 | htab->elf.hgot->other = ((htab->elf.hgot->other & ~ELF_ST_VISIBILITY (-1)) |
| 7095 | | STV_HIDDEN); | |
| 7096 | } | |
| c66bb0ee | 7097 | |
| 4ce794b7 | 7098 | elf_link_hash_traverse (&htab->elf, func_desc_adjust, info); |
| 805fc799 | 7099 | |
| b34976b6 | 7100 | return TRUE; |
| e86ce104 AM |
7101 | } |
| 7102 | ||
| a345bc8d AM |
7103 | /* Return true if we have dynamic relocs that apply to read-only sections. */ |
| 7104 | ||
| 7105 | static bfd_boolean | |
| 7106 | readonly_dynrelocs (struct elf_link_hash_entry *h) | |
| 7107 | { | |
| 7108 | struct ppc_link_hash_entry *eh; | |
| 7109 | struct elf_dyn_relocs *p; | |
| 7110 | ||
| 7111 | eh = (struct ppc_link_hash_entry *) h; | |
| 7112 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 7113 | { | |
| 7114 | asection *s = p->sec->output_section; | |
| 7115 | ||
| 7116 | if (s != NULL && (s->flags & SEC_READONLY) != 0) | |
| 7117 | return TRUE; | |
| 7118 | } | |
| 7119 | return FALSE; | |
| 7120 | } | |
| 7121 | ||
| e86ce104 AM |
7122 | /* Adjust a symbol defined by a dynamic object and referenced by a |
| 7123 | regular object. The current definition is in some section of the | |
| 7124 | dynamic object, but we're not including those sections. We have to | |
| 7125 | change the definition to something the rest of the link can | |
| 7126 | understand. */ | |
| 7127 | ||
| b34976b6 | 7128 | static bfd_boolean |
| 4ce794b7 AM |
7129 | ppc64_elf_adjust_dynamic_symbol (struct bfd_link_info *info, |
| 7130 | struct elf_link_hash_entry *h) | |
| e86ce104 AM |
7131 | { |
| 7132 | struct ppc_link_hash_table *htab; | |
| e86ce104 | 7133 | asection *s; |
| e86ce104 AM |
7134 | |
| 7135 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7136 | if (htab == NULL) |
| 7137 | return FALSE; | |
| e86ce104 AM |
7138 | |
| 7139 | /* Deal with function syms. */ | |
| 7140 | if (h->type == STT_FUNC | |
| e054468f | 7141 | || h->type == STT_GNU_IFUNC |
| f5385ebf | 7142 | || h->needs_plt) |
| e86ce104 AM |
7143 | { |
| 7144 | /* Clear procedure linkage table information for any symbol that | |
| 7145 | won't need a .plt entry. */ | |
| 411e1bfb AM |
7146 | struct plt_entry *ent; |
| 7147 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) | |
| 7148 | if (ent->plt.refcount > 0) | |
| 7149 | break; | |
| 8387904d | 7150 | if (ent == NULL |
| e054468f AM |
7151 | || (h->type != STT_GNU_IFUNC |
| 7152 | && (SYMBOL_CALLS_LOCAL (info, h) | |
| 7153 | || (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT | |
| a4b6fadd AM |
7154 | && h->root.type == bfd_link_hash_undefweak))) |
| 7155 | || ((struct ppc_link_hash_entry *) h)->save_res) | |
| 40b8271b | 7156 | { |
| 411e1bfb | 7157 | h->plt.plist = NULL; |
| f5385ebf | 7158 | h->needs_plt = 0; |
| d1eca1e4 | 7159 | h->pointer_equality_needed = 0; |
| 40b8271b | 7160 | } |
| a345bc8d AM |
7161 | else if (abiversion (info->output_bfd) == 2) |
| 7162 | { | |
| d1eca1e4 AM |
7163 | /* Taking a function's address in a read/write section |
| 7164 | doesn't require us to define the function symbol in the | |
| 7165 | executable on a global entry stub. A dynamic reloc can | |
| 7166 | be used instead. */ | |
| 7167 | if (h->pointer_equality_needed | |
| 1009ef28 | 7168 | && h->type != STT_GNU_IFUNC |
| d1eca1e4 AM |
7169 | && !readonly_dynrelocs (h)) |
| 7170 | { | |
| 7171 | h->pointer_equality_needed = 0; | |
| 7172 | h->non_got_ref = 0; | |
| 7173 | } | |
| 7174 | ||
| a345bc8d AM |
7175 | /* After adjust_dynamic_symbol, non_got_ref set in the |
| 7176 | non-shared case means that we have allocated space in | |
| 7177 | .dynbss for the symbol and thus dyn_relocs for this | |
| 7178 | symbol should be discarded. | |
| 7179 | If we get here we know we are making a PLT entry for this | |
| 7180 | symbol, and in an executable we'd normally resolve | |
| 7181 | relocations against this symbol to the PLT entry. Allow | |
| 7182 | dynamic relocs if the reference is weak, and the dynamic | |
| 7183 | relocs will not cause text relocation. */ | |
| d1eca1e4 AM |
7184 | else if (!h->ref_regular_nonweak |
| 7185 | && h->non_got_ref | |
| 7186 | && h->type != STT_GNU_IFUNC | |
| 7187 | && !readonly_dynrelocs (h)) | |
| a345bc8d AM |
7188 | h->non_got_ref = 0; |
| 7189 | ||
| 7190 | /* If making a plt entry, then we don't need copy relocs. */ | |
| 7191 | return TRUE; | |
| 7192 | } | |
| 5bd4f169 | 7193 | } |
| bbd7ec4a | 7194 | else |
| 411e1bfb | 7195 | h->plt.plist = NULL; |
| 5bd4f169 AM |
7196 | |
| 7197 | /* If this is a weak symbol, and there is a real definition, the | |
| 7198 | processor independent code will have arranged for us to see the | |
| 7199 | real definition first, and we can just use the same value. */ | |
| f6e332e6 | 7200 | if (h->u.weakdef != NULL) |
| 5bd4f169 | 7201 | { |
| f6e332e6 AM |
7202 | BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined |
| 7203 | || h->u.weakdef->root.type == bfd_link_hash_defweak); | |
| 7204 | h->root.u.def.section = h->u.weakdef->root.u.def.section; | |
| 7205 | h->root.u.def.value = h->u.weakdef->root.u.def.value; | |
| a23b6845 | 7206 | if (ELIMINATE_COPY_RELOCS) |
| f6e332e6 | 7207 | h->non_got_ref = h->u.weakdef->non_got_ref; |
| b34976b6 | 7208 | return TRUE; |
| 5bd4f169 AM |
7209 | } |
| 7210 | ||
| 5bd4f169 AM |
7211 | /* If we are creating a shared library, we must presume that the |
| 7212 | only references to the symbol are via the global offset table. | |
| 7213 | For such cases we need not do anything here; the relocations will | |
| 7214 | be handled correctly by relocate_section. */ | |
| 0e1862bb | 7215 | if (bfd_link_pic (info)) |
| b34976b6 | 7216 | return TRUE; |
| 5bd4f169 | 7217 | |
| 65f38f15 AM |
7218 | /* If there are no references to this symbol that do not use the |
| 7219 | GOT, we don't need to generate a copy reloc. */ | |
| f5385ebf | 7220 | if (!h->non_got_ref) |
| b34976b6 | 7221 | return TRUE; |
| 65f38f15 | 7222 | |
| b186458a JJ |
7223 | /* Don't generate a copy reloc for symbols defined in the executable. */ |
| 7224 | if (!h->def_dynamic || !h->ref_regular || h->def_regular) | |
| 7225 | return TRUE; | |
| 7226 | ||
| a127494f AM |
7227 | /* If -z nocopyreloc was given, don't generate them either. */ |
| 7228 | if (info->nocopyreloc) | |
| 7229 | { | |
| 7230 | h->non_got_ref = 0; | |
| 7231 | return TRUE; | |
| 7232 | } | |
| 7233 | ||
| a345bc8d AM |
7234 | /* If we didn't find any dynamic relocs in read-only sections, then |
| 7235 | we'll be keeping the dynamic relocs and avoiding the copy reloc. */ | |
| 7236 | if (ELIMINATE_COPY_RELOCS && !readonly_dynrelocs (h)) | |
| 65f38f15 | 7237 | { |
| a345bc8d AM |
7238 | h->non_got_ref = 0; |
| 7239 | return TRUE; | |
| 65f38f15 AM |
7240 | } |
| 7241 | ||
| a127494f AM |
7242 | /* Protected variables do not work with .dynbss. The copy in |
| 7243 | .dynbss won't be used by the shared library with the protected | |
| 7244 | definition for the variable. Text relocations are preferable | |
| 7245 | to an incorrect program. */ | |
| 7246 | if (h->protected_def) | |
| 7247 | { | |
| 7248 | h->non_got_ref = 0; | |
| 7249 | return TRUE; | |
| 7250 | } | |
| 7251 | ||
| 5d35169e | 7252 | if (h->plt.plist != NULL) |
| 97b639ba AM |
7253 | { |
| 7254 | /* We should never get here, but unfortunately there are versions | |
| 7255 | of gcc out there that improperly (for this ABI) put initialized | |
| 7256 | function pointers, vtable refs and suchlike in read-only | |
| 7257 | sections. Allow them to proceed, but warn that this might | |
| 7258 | break at runtime. */ | |
| 25f53a85 | 7259 | info->callbacks->einfo |
| bc30df16 | 7260 | (_("%P: copy reloc against `%T' requires lazy plt linking; " |
| 25f53a85 | 7261 | "avoid setting LD_BIND_NOW=1 or upgrade gcc\n"), |
| 97b639ba AM |
7262 | h->root.root.string); |
| 7263 | } | |
| 5d35169e AM |
7264 | |
| 7265 | /* This is a reference to a symbol defined by a dynamic object which | |
| 7266 | is not a function. */ | |
| 7267 | ||
| 5bd4f169 AM |
7268 | /* We must allocate the symbol in our .dynbss section, which will |
| 7269 | become part of the .bss section of the executable. There will be | |
| 7270 | an entry for this symbol in the .dynsym section. The dynamic | |
| 7271 | object will contain position independent code, so all references | |
| 7272 | from the dynamic object to this symbol will go through the global | |
| 7273 | offset table. The dynamic linker will use the .dynsym entry to | |
| 7274 | determine the address it must put in the global offset table, so | |
| 7275 | both the dynamic object and the regular object will refer to the | |
| 7276 | same memory location for the variable. */ | |
| 5bd4f169 | 7277 | |
| 04c9666a AM |
7278 | /* We must generate a R_PPC64_COPY reloc to tell the dynamic linker |
| 7279 | to copy the initial value out of the dynamic object and into the | |
| 5bd4f169 AM |
7280 | runtime process image. We need to remember the offset into the |
| 7281 | .rela.bss section we are going to use. */ | |
| 1d7e9d18 | 7282 | if ((h->root.u.def.section->flags & SEC_ALLOC) != 0 && h->size != 0) |
| 5bd4f169 | 7283 | { |
| eea6121a | 7284 | htab->relbss->size += sizeof (Elf64_External_Rela); |
| f5385ebf | 7285 | h->needs_copy = 1; |
| 5bd4f169 AM |
7286 | } |
| 7287 | ||
| 4ce794b7 | 7288 | s = htab->dynbss; |
| 5bd4f169 | 7289 | |
| 6cabe1ea | 7290 | return _bfd_elf_adjust_dynamic_copy (info, h, s); |
| 5bd4f169 AM |
7291 | } |
| 7292 | ||
| e86ce104 AM |
7293 | /* If given a function descriptor symbol, hide both the function code |
| 7294 | sym and the descriptor. */ | |
| 7295 | static void | |
| 4ce794b7 AM |
7296 | ppc64_elf_hide_symbol (struct bfd_link_info *info, |
| 7297 | struct elf_link_hash_entry *h, | |
| 7298 | bfd_boolean force_local) | |
| e86ce104 | 7299 | { |
| 34814b9f | 7300 | struct ppc_link_hash_entry *eh; |
| e86ce104 AM |
7301 | _bfd_elf_link_hash_hide_symbol (info, h, force_local); |
| 7302 | ||
| 34814b9f AM |
7303 | eh = (struct ppc_link_hash_entry *) h; |
| 7304 | if (eh->is_func_descriptor) | |
| e86ce104 | 7305 | { |
| 34814b9f | 7306 | struct ppc_link_hash_entry *fh = eh->oh; |
| e86ce104 | 7307 | |
| 721956f4 | 7308 | if (fh == NULL) |
| d1329ca3 AM |
7309 | { |
| 7310 | const char *p, *q; | |
| 7311 | struct ppc_link_hash_table *htab; | |
| 7312 | char save; | |
| 7313 | ||
| 7314 | /* We aren't supposed to use alloca in BFD because on | |
| 7315 | systems which do not have alloca the version in libiberty | |
| 7316 | calls xmalloc, which might cause the program to crash | |
| 7317 | when it runs out of memory. This function doesn't have a | |
| 7318 | return status, so there's no way to gracefully return an | |
| 7319 | error. So cheat. We know that string[-1] can be safely | |
| 34814b9f AM |
7320 | accessed; It's either a string in an ELF string table, |
| 7321 | or allocated in an objalloc structure. */ | |
| d1329ca3 | 7322 | |
| 34814b9f | 7323 | p = eh->elf.root.root.string - 1; |
| d1329ca3 AM |
7324 | save = *p; |
| 7325 | *(char *) p = '.'; | |
| 7326 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
7327 | if (htab == NULL) |
| 7328 | return; | |
| 7329 | ||
| 34814b9f AM |
7330 | fh = (struct ppc_link_hash_entry *) |
| 7331 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7332 | *(char *) p = save; |
| 7333 | ||
| 7334 | /* Unfortunately, if it so happens that the string we were | |
| 7335 | looking for was allocated immediately before this string, | |
| 7336 | then we overwrote the string terminator. That's the only | |
| 7337 | reason the lookup should fail. */ | |
| 7338 | if (fh == NULL) | |
| 7339 | { | |
| 34814b9f AM |
7340 | q = eh->elf.root.root.string + strlen (eh->elf.root.root.string); |
| 7341 | while (q >= eh->elf.root.root.string && *q == *p) | |
| d1329ca3 | 7342 | --q, --p; |
| 34814b9f AM |
7343 | if (q < eh->elf.root.root.string && *p == '.') |
| 7344 | fh = (struct ppc_link_hash_entry *) | |
| 7345 | elf_link_hash_lookup (&htab->elf, p, FALSE, FALSE, FALSE); | |
| d1329ca3 AM |
7346 | } |
| 7347 | if (fh != NULL) | |
| 7348 | { | |
| 34814b9f AM |
7349 | eh->oh = fh; |
| 7350 | fh->oh = eh; | |
| d1329ca3 AM |
7351 | } |
| 7352 | } | |
| e86ce104 | 7353 | if (fh != NULL) |
| 34814b9f | 7354 | _bfd_elf_link_hash_hide_symbol (info, &fh->elf, force_local); |
| e86ce104 AM |
7355 | } |
| 7356 | } | |
| 7357 | ||
| 411e1bfb | 7358 | static bfd_boolean |
| 8843416a AM |
7359 | get_sym_h (struct elf_link_hash_entry **hp, |
| 7360 | Elf_Internal_Sym **symp, | |
| 7361 | asection **symsecp, | |
| f961d9dd | 7362 | unsigned char **tls_maskp, |
| 8843416a AM |
7363 | Elf_Internal_Sym **locsymsp, |
| 7364 | unsigned long r_symndx, | |
| 7365 | bfd *ibfd) | |
| 411e1bfb | 7366 | { |
| 0ffa91dd | 7367 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); |
| 411e1bfb AM |
7368 | |
| 7369 | if (r_symndx >= symtab_hdr->sh_info) | |
| 7370 | { | |
| 7371 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); | |
| 7372 | struct elf_link_hash_entry *h; | |
| 7373 | ||
| 7374 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; | |
| b31867b6 | 7375 | h = elf_follow_link (h); |
| 411e1bfb AM |
7376 | |
| 7377 | if (hp != NULL) | |
| 7378 | *hp = h; | |
| 7379 | ||
| 7380 | if (symp != NULL) | |
| 7381 | *symp = NULL; | |
| 7382 | ||
| 7383 | if (symsecp != NULL) | |
| 7384 | { | |
| 7385 | asection *symsec = NULL; | |
| 7386 | if (h->root.type == bfd_link_hash_defined | |
| 7387 | || h->root.type == bfd_link_hash_defweak) | |
| 7388 | symsec = h->root.u.def.section; | |
| 7389 | *symsecp = symsec; | |
| 7390 | } | |
| 7391 | ||
| e7b938ca | 7392 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7393 | { |
| 7394 | struct ppc_link_hash_entry *eh; | |
| 7395 | ||
| 7396 | eh = (struct ppc_link_hash_entry *) h; | |
| e7b938ca | 7397 | *tls_maskp = &eh->tls_mask; |
| 411e1bfb AM |
7398 | } |
| 7399 | } | |
| 7400 | else | |
| 7401 | { | |
| 7402 | Elf_Internal_Sym *sym; | |
| 7403 | Elf_Internal_Sym *locsyms = *locsymsp; | |
| 7404 | ||
| 7405 | if (locsyms == NULL) | |
| 7406 | { | |
| 7407 | locsyms = (Elf_Internal_Sym *) symtab_hdr->contents; | |
| 7408 | if (locsyms == NULL) | |
| 7409 | locsyms = bfd_elf_get_elf_syms (ibfd, symtab_hdr, | |
| 7410 | symtab_hdr->sh_info, | |
| 7411 | 0, NULL, NULL, NULL); | |
| 7412 | if (locsyms == NULL) | |
| 7413 | return FALSE; | |
| 7414 | *locsymsp = locsyms; | |
| 7415 | } | |
| 7416 | sym = locsyms + r_symndx; | |
| 7417 | ||
| 7418 | if (hp != NULL) | |
| 7419 | *hp = NULL; | |
| 7420 | ||
| 7421 | if (symp != NULL) | |
| 7422 | *symp = sym; | |
| 7423 | ||
| 7424 | if (symsecp != NULL) | |
| cb33740c | 7425 | *symsecp = bfd_section_from_elf_index (ibfd, sym->st_shndx); |
| 411e1bfb | 7426 | |
| e7b938ca | 7427 | if (tls_maskp != NULL) |
| 411e1bfb AM |
7428 | { |
| 7429 | struct got_entry **lgot_ents; | |
| f961d9dd | 7430 | unsigned char *tls_mask; |
| 411e1bfb | 7431 | |
| e7b938ca | 7432 | tls_mask = NULL; |
| 411e1bfb AM |
7433 | lgot_ents = elf_local_got_ents (ibfd); |
| 7434 | if (lgot_ents != NULL) | |
| 7435 | { | |
| e054468f AM |
7436 | struct plt_entry **local_plt = (struct plt_entry **) |
| 7437 | (lgot_ents + symtab_hdr->sh_info); | |
| f961d9dd | 7438 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 7439 | (local_plt + symtab_hdr->sh_info); |
| e7b938ca | 7440 | tls_mask = &lgot_masks[r_symndx]; |
| 411e1bfb | 7441 | } |
| e7b938ca | 7442 | *tls_maskp = tls_mask; |
| 411e1bfb AM |
7443 | } |
| 7444 | } | |
| 7445 | return TRUE; | |
| 7446 | } | |
| 7447 | ||
| e7b938ca | 7448 | /* Returns TLS_MASKP for the given REL symbol. Function return is 0 on |
| 951fd09b | 7449 | error, 2 on a toc GD type suitable for optimization, 3 on a toc LD |
| ad8e1ba5 | 7450 | type suitable for optimization, and 1 otherwise. */ |
| 951fd09b AM |
7451 | |
| 7452 | static int | |
| f961d9dd | 7453 | get_tls_mask (unsigned char **tls_maskp, |
| 3a71aa26 AM |
7454 | unsigned long *toc_symndx, |
| 7455 | bfd_vma *toc_addend, | |
| 0d4792f7 | 7456 | Elf_Internal_Sym **locsymsp, |
| 3a71aa26 AM |
7457 | const Elf_Internal_Rela *rel, |
| 7458 | bfd *ibfd) | |
| 411e1bfb AM |
7459 | { |
| 7460 | unsigned long r_symndx; | |
| 0d4792f7 | 7461 | int next_r; |
| 411e1bfb AM |
7462 | struct elf_link_hash_entry *h; |
| 7463 | Elf_Internal_Sym *sym; | |
| 7464 | asection *sec; | |
| 7465 | bfd_vma off; | |
| 7466 | ||
| 7467 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| e7b938ca | 7468 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) |
| 951fd09b | 7469 | return 0; |
| 411e1bfb | 7470 | |
| e7b938ca | 7471 | if ((*tls_maskp != NULL && **tls_maskp != 0) |
| 411e1bfb | 7472 | || sec == NULL |
| 6bee8834 | 7473 | || ppc64_elf_section_data (sec) == NULL |
| 7c8fe5c4 | 7474 | || ppc64_elf_section_data (sec)->sec_type != sec_toc) |
| 951fd09b | 7475 | return 1; |
| 411e1bfb AM |
7476 | |
| 7477 | /* Look inside a TOC section too. */ | |
| 7478 | if (h != NULL) | |
| 7479 | { | |
| 7480 | BFD_ASSERT (h->root.type == bfd_link_hash_defined); | |
| 7481 | off = h->root.u.def.value; | |
| 7482 | } | |
| 7483 | else | |
| 7484 | off = sym->st_value; | |
| 7485 | off += rel->r_addend; | |
| 7486 | BFD_ASSERT (off % 8 == 0); | |
| 3a71aa26 AM |
7487 | r_symndx = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8]; |
| 7488 | next_r = ppc64_elf_section_data (sec)->u.toc.symndx[off / 8 + 1]; | |
| 0d4792f7 AM |
7489 | if (toc_symndx != NULL) |
| 7490 | *toc_symndx = r_symndx; | |
| 3a71aa26 AM |
7491 | if (toc_addend != NULL) |
| 7492 | *toc_addend = ppc64_elf_section_data (sec)->u.toc.add[off / 8]; | |
| 7493 | if (!get_sym_h (&h, &sym, &sec, tls_maskp, locsymsp, r_symndx, ibfd)) | |
| 7494 | return 0; | |
| 854b41e7 | 7495 | if ((h == NULL || is_static_defined (h)) |
| 0d4792f7 AM |
7496 | && (next_r == -1 || next_r == -2)) |
| 7497 | return 1 - next_r; | |
| 951fd09b | 7498 | return 1; |
| 411e1bfb AM |
7499 | } |
| 7500 | ||
| 3b421ab3 AM |
7501 | /* Find (or create) an entry in the tocsave hash table. */ |
| 7502 | ||
| 7503 | static struct tocsave_entry * | |
| 7504 | tocsave_find (struct ppc_link_hash_table *htab, | |
| 7505 | enum insert_option insert, | |
| 7506 | Elf_Internal_Sym **local_syms, | |
| 7507 | const Elf_Internal_Rela *irela, | |
| 7508 | bfd *ibfd) | |
| 7509 | { | |
| 7510 | unsigned long r_indx; | |
| 7511 | struct elf_link_hash_entry *h; | |
| 7512 | Elf_Internal_Sym *sym; | |
| 7513 | struct tocsave_entry ent, *p; | |
| 7514 | hashval_t hash; | |
| 7515 | struct tocsave_entry **slot; | |
| 7516 | ||
| 7517 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 7518 | if (!get_sym_h (&h, &sym, &ent.sec, NULL, local_syms, r_indx, ibfd)) | |
| 7519 | return NULL; | |
| 7520 | if (ent.sec == NULL || ent.sec->output_section == NULL) | |
| 7521 | { | |
| 7522 | (*_bfd_error_handler) | |
| 7523 | (_("%B: undefined symbol on R_PPC64_TOCSAVE relocation")); | |
| 7524 | return NULL; | |
| 7525 | } | |
| 7526 | ||
| 7527 | if (h != NULL) | |
| 7528 | ent.offset = h->root.u.def.value; | |
| 7529 | else | |
| 7530 | ent.offset = sym->st_value; | |
| 7531 | ent.offset += irela->r_addend; | |
| 7532 | ||
| 7533 | hash = tocsave_htab_hash (&ent); | |
| 7534 | slot = ((struct tocsave_entry **) | |
| 7535 | htab_find_slot_with_hash (htab->tocsave_htab, &ent, hash, insert)); | |
| 7536 | if (slot == NULL) | |
| 7537 | return NULL; | |
| 7538 | ||
| 7539 | if (*slot == NULL) | |
| 7540 | { | |
| 7541 | p = (struct tocsave_entry *) bfd_alloc (ibfd, sizeof (*p)); | |
| 7542 | if (p == NULL) | |
| 7543 | return NULL; | |
| 7544 | *p = ent; | |
| 7545 | *slot = p; | |
| 7546 | } | |
| 7547 | return *slot; | |
| 7548 | } | |
| 7549 | ||
| 754021d0 | 7550 | /* Adjust all global syms defined in opd sections. In gcc generated |
| 8387904d | 7551 | code for the old ABI, these will already have been done. */ |
| 754021d0 AM |
7552 | |
| 7553 | static bfd_boolean | |
| 7554 | adjust_opd_syms (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 7555 | { | |
| 7556 | struct ppc_link_hash_entry *eh; | |
| 7557 | asection *sym_sec; | |
| 74f0fb50 | 7558 | struct _opd_sec_data *opd; |
| 754021d0 AM |
7559 | |
| 7560 | if (h->root.type == bfd_link_hash_indirect) | |
| 7561 | return TRUE; | |
| 7562 | ||
| 754021d0 AM |
7563 | if (h->root.type != bfd_link_hash_defined |
| 7564 | && h->root.type != bfd_link_hash_defweak) | |
| 7565 | return TRUE; | |
| 7566 | ||
| 7567 | eh = (struct ppc_link_hash_entry *) h; | |
| 7568 | if (eh->adjust_done) | |
| 7569 | return TRUE; | |
| 7570 | ||
| 7571 | sym_sec = eh->elf.root.u.def.section; | |
| 74f0fb50 AM |
7572 | opd = get_opd_info (sym_sec); |
| 7573 | if (opd != NULL && opd->adjust != NULL) | |
| 754021d0 | 7574 | { |
| 51aecdc5 | 7575 | long adjust = opd->adjust[OPD_NDX (eh->elf.root.u.def.value)]; |
| 4025353c AM |
7576 | if (adjust == -1) |
| 7577 | { | |
| 7578 | /* This entry has been deleted. */ | |
| b3fac117 | 7579 | asection *dsec = ppc64_elf_tdata (sym_sec->owner)->deleted_section; |
| 81688140 AM |
7580 | if (dsec == NULL) |
| 7581 | { | |
| 7582 | for (dsec = sym_sec->owner->sections; dsec; dsec = dsec->next) | |
| dbaa2011 | 7583 | if (discarded_section (dsec)) |
| 81688140 | 7584 | { |
| b3fac117 | 7585 | ppc64_elf_tdata (sym_sec->owner)->deleted_section = dsec; |
| 81688140 AM |
7586 | break; |
| 7587 | } | |
| 7588 | } | |
| 4025353c | 7589 | eh->elf.root.u.def.value = 0; |
| 81688140 | 7590 | eh->elf.root.u.def.section = dsec; |
| 4025353c AM |
7591 | } |
| 7592 | else | |
| 7593 | eh->elf.root.u.def.value += adjust; | |
| 754021d0 AM |
7594 | eh->adjust_done = 1; |
| 7595 | } | |
| 7596 | return TRUE; | |
| 7597 | } | |
| 7598 | ||
| 8c1d1bb8 | 7599 | /* Handles decrementing dynamic reloc counts for the reloc specified by |
| 19e08130 | 7600 | R_INFO in section SEC. If LOCAL_SYMS is NULL, then H and SYM |
| 8c1d1bb8 AM |
7601 | have already been determined. */ |
| 7602 | ||
| 7603 | static bfd_boolean | |
| 7604 | dec_dynrel_count (bfd_vma r_info, | |
| 7605 | asection *sec, | |
| 7606 | struct bfd_link_info *info, | |
| 7607 | Elf_Internal_Sym **local_syms, | |
| 7608 | struct elf_link_hash_entry *h, | |
| 19e08130 | 7609 | Elf_Internal_Sym *sym) |
| 8c1d1bb8 AM |
7610 | { |
| 7611 | enum elf_ppc64_reloc_type r_type; | |
| 19e08130 | 7612 | asection *sym_sec = NULL; |
| 8c1d1bb8 AM |
7613 | |
| 7614 | /* Can this reloc be dynamic? This switch, and later tests here | |
| 7615 | should be kept in sync with the code in check_relocs. */ | |
| 7616 | r_type = ELF64_R_TYPE (r_info); | |
| 7617 | switch (r_type) | |
| 7618 | { | |
| 7619 | default: | |
| 7620 | return TRUE; | |
| 7621 | ||
| 7622 | case R_PPC64_TPREL16: | |
| 7623 | case R_PPC64_TPREL16_LO: | |
| 7624 | case R_PPC64_TPREL16_HI: | |
| 7625 | case R_PPC64_TPREL16_HA: | |
| 7626 | case R_PPC64_TPREL16_DS: | |
| 7627 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
7628 | case R_PPC64_TPREL16_HIGH: |
| 7629 | case R_PPC64_TPREL16_HIGHA: | |
| 8c1d1bb8 AM |
7630 | case R_PPC64_TPREL16_HIGHER: |
| 7631 | case R_PPC64_TPREL16_HIGHERA: | |
| 7632 | case R_PPC64_TPREL16_HIGHEST: | |
| 7633 | case R_PPC64_TPREL16_HIGHESTA: | |
| 0e1862bb | 7634 | if (!bfd_link_pic (info)) |
| 8c1d1bb8 AM |
7635 | return TRUE; |
| 7636 | ||
| 7637 | case R_PPC64_TPREL64: | |
| 7638 | case R_PPC64_DTPMOD64: | |
| 7639 | case R_PPC64_DTPREL64: | |
| 7640 | case R_PPC64_ADDR64: | |
| 7641 | case R_PPC64_REL30: | |
| 7642 | case R_PPC64_REL32: | |
| 7643 | case R_PPC64_REL64: | |
| 7644 | case R_PPC64_ADDR14: | |
| 7645 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 7646 | case R_PPC64_ADDR14_BRTAKEN: | |
| 7647 | case R_PPC64_ADDR16: | |
| 7648 | case R_PPC64_ADDR16_DS: | |
| 7649 | case R_PPC64_ADDR16_HA: | |
| 7650 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
7651 | case R_PPC64_ADDR16_HIGH: |
| 7652 | case R_PPC64_ADDR16_HIGHA: | |
| 8c1d1bb8 AM |
7653 | case R_PPC64_ADDR16_HIGHER: |
| 7654 | case R_PPC64_ADDR16_HIGHERA: | |
| 7655 | case R_PPC64_ADDR16_HIGHEST: | |
| 7656 | case R_PPC64_ADDR16_HIGHESTA: | |
| 7657 | case R_PPC64_ADDR16_LO: | |
| 7658 | case R_PPC64_ADDR16_LO_DS: | |
| 7659 | case R_PPC64_ADDR24: | |
| 7660 | case R_PPC64_ADDR32: | |
| 7661 | case R_PPC64_UADDR16: | |
| 7662 | case R_PPC64_UADDR32: | |
| 7663 | case R_PPC64_UADDR64: | |
| 7664 | case R_PPC64_TOC: | |
| 7665 | break; | |
| 7666 | } | |
| 7667 | ||
| 7668 | if (local_syms != NULL) | |
| 7669 | { | |
| 7670 | unsigned long r_symndx; | |
| 8c1d1bb8 AM |
7671 | bfd *ibfd = sec->owner; |
| 7672 | ||
| 7673 | r_symndx = ELF64_R_SYM (r_info); | |
| 7674 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, local_syms, r_symndx, ibfd)) | |
| 7675 | return FALSE; | |
| 7676 | } | |
| 7677 | ||
| 0e1862bb | 7678 | if ((bfd_link_pic (info) |
| 1d483afe | 7679 | && (must_be_dyn_reloc (info, r_type) |
| 8c1d1bb8 | 7680 | || (h != NULL |
| 198f1157 | 7681 | && (!SYMBOLIC_BIND (info, h) |
| 8c1d1bb8 AM |
7682 | || h->root.type == bfd_link_hash_defweak |
| 7683 | || !h->def_regular)))) | |
| 7684 | || (ELIMINATE_COPY_RELOCS | |
| 0e1862bb | 7685 | && !bfd_link_pic (info) |
| 8c1d1bb8 AM |
7686 | && h != NULL |
| 7687 | && (h->root.type == bfd_link_hash_defweak | |
| 7688 | || !h->def_regular))) | |
| 7689 | ; | |
| 7690 | else | |
| 7691 | return TRUE; | |
| 7692 | ||
| 7693 | if (h != NULL) | |
| 6edfbbad | 7694 | { |
| 19e08130 AM |
7695 | struct elf_dyn_relocs *p; |
| 7696 | struct elf_dyn_relocs **pp; | |
| 7697 | pp = &((struct ppc_link_hash_entry *) h)->dyn_relocs; | |
| 7698 | ||
| 7699 | /* elf_gc_sweep may have already removed all dyn relocs associated | |
| 7700 | with local syms for a given section. Also, symbol flags are | |
| 7701 | changed by elf_gc_sweep_symbol, confusing the test above. Don't | |
| 7702 | report a dynreloc miscount. */ | |
| 7703 | if (*pp == NULL && info->gc_sections) | |
| 7704 | return TRUE; | |
| 7705 | ||
| 7706 | while ((p = *pp) != NULL) | |
| 60124e18 | 7707 | { |
| 19e08130 AM |
7708 | if (p->sec == sec) |
| 7709 | { | |
| 7710 | if (!must_be_dyn_reloc (info, r_type)) | |
| 7711 | p->pc_count -= 1; | |
| 7712 | p->count -= 1; | |
| 7713 | if (p->count == 0) | |
| 7714 | *pp = p->next; | |
| 7715 | return TRUE; | |
| 7716 | } | |
| 7717 | pp = &p->next; | |
| 60124e18 | 7718 | } |
| 6edfbbad | 7719 | } |
| 19e08130 AM |
7720 | else |
| 7721 | { | |
| 7722 | struct ppc_dyn_relocs *p; | |
| 7723 | struct ppc_dyn_relocs **pp; | |
| 7724 | void *vpp; | |
| 7725 | bfd_boolean is_ifunc; | |
| 8c1d1bb8 | 7726 | |
| 19e08130 AM |
7727 | if (local_syms == NULL) |
| 7728 | sym_sec = bfd_section_from_elf_index (sec->owner, sym->st_shndx); | |
| 7729 | if (sym_sec == NULL) | |
| 7730 | sym_sec = sec; | |
| c57da1a7 | 7731 | |
| 19e08130 AM |
7732 | vpp = &elf_section_data (sym_sec)->local_dynrel; |
| 7733 | pp = (struct ppc_dyn_relocs **) vpp; | |
| 7734 | ||
| 7735 | if (*pp == NULL && info->gc_sections) | |
| 7736 | return TRUE; | |
| 7737 | ||
| 7738 | is_ifunc = ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC; | |
| 7739 | while ((p = *pp) != NULL) | |
| 8c1d1bb8 | 7740 | { |
| 19e08130 AM |
7741 | if (p->sec == sec && p->ifunc == is_ifunc) |
| 7742 | { | |
| 7743 | p->count -= 1; | |
| 7744 | if (p->count == 0) | |
| 7745 | *pp = p->next; | |
| 7746 | return TRUE; | |
| 7747 | } | |
| 7748 | pp = &p->next; | |
| 8c1d1bb8 | 7749 | } |
| 8c1d1bb8 AM |
7750 | } |
| 7751 | ||
| 8de848d8 | 7752 | info->callbacks->einfo (_("%P: dynreloc miscount for %B, section %A\n"), |
| 25f53a85 | 7753 | sec->owner, sec); |
| 8c1d1bb8 AM |
7754 | bfd_set_error (bfd_error_bad_value); |
| 7755 | return FALSE; | |
| 7756 | } | |
| 7757 | ||
| 754021d0 AM |
7758 | /* Remove unused Official Procedure Descriptor entries. Currently we |
| 7759 | only remove those associated with functions in discarded link-once | |
| 7760 | sections, or weakly defined functions that have been overridden. It | |
| 7761 | would be possible to remove many more entries for statically linked | |
| 7762 | applications. */ | |
| 7763 | ||
| b34976b6 | 7764 | bfd_boolean |
| e7d1c40c | 7765 | ppc64_elf_edit_opd (struct bfd_link_info *info) |
| 1e2f5b6e AM |
7766 | { |
| 7767 | bfd *ibfd; | |
| 754021d0 | 7768 | bfd_boolean some_edited = FALSE; |
| 3f764659 | 7769 | asection *need_pad = NULL; |
| e7d1c40c AM |
7770 | struct ppc_link_hash_table *htab; |
| 7771 | ||
| 7772 | htab = ppc_hash_table (info); | |
| 7773 | if (htab == NULL) | |
| 7774 | return FALSE; | |
| 1e2f5b6e | 7775 | |
| c72f2fb2 | 7776 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 1e2f5b6e AM |
7777 | { |
| 7778 | asection *sec; | |
| 7779 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 7780 | Elf_Internal_Shdr *symtab_hdr; | |
| 6cdc0ccc | 7781 | Elf_Internal_Sym *local_syms; |
| 74f0fb50 | 7782 | struct _opd_sec_data *opd; |
| 51aecdc5 | 7783 | bfd_boolean need_edit, add_aux_fields, broken; |
| 3f764659 | 7784 | bfd_size_type cnt_16b = 0; |
| 1e2f5b6e | 7785 | |
| 854b41e7 AM |
7786 | if (!is_ppc64_elf (ibfd)) |
| 7787 | continue; | |
| 7788 | ||
| 1e2f5b6e | 7789 | sec = bfd_get_section_by_name (ibfd, ".opd"); |
| 46de2a7c | 7790 | if (sec == NULL || sec->size == 0) |
| 1e2f5b6e AM |
7791 | continue; |
| 7792 | ||
| dbaa2011 | 7793 | if (sec->sec_info_type == SEC_INFO_TYPE_JUST_SYMS) |
| 4b85d634 AM |
7794 | continue; |
| 7795 | ||
| 1e2f5b6e AM |
7796 | if (sec->output_section == bfd_abs_section_ptr) |
| 7797 | continue; | |
| 7798 | ||
| 7799 | /* Look through the section relocs. */ | |
| 7800 | if ((sec->flags & SEC_RELOC) == 0 || sec->reloc_count == 0) | |
| 7801 | continue; | |
| 7802 | ||
| 6cdc0ccc | 7803 | local_syms = NULL; |
| 0ffa91dd | 7804 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 1e2f5b6e AM |
7805 | |
| 7806 | /* Read the relocations. */ | |
| 4ce794b7 | 7807 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 45d6a902 | 7808 | info->keep_memory); |
| 1e2f5b6e | 7809 | if (relstart == NULL) |
| b34976b6 | 7810 | return FALSE; |
| 1e2f5b6e AM |
7811 | |
| 7812 | /* First run through the relocs to check they are sane, and to | |
| 7813 | determine whether we need to edit this opd section. */ | |
| b34976b6 | 7814 | need_edit = FALSE; |
| 51aecdc5 | 7815 | broken = FALSE; |
| 3f764659 | 7816 | need_pad = sec; |
| 1e2f5b6e | 7817 | relend = relstart + sec->reloc_count; |
| 50bc7936 | 7818 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7819 | { |
| 04c9666a | 7820 | enum elf_ppc64_reloc_type r_type; |
| 1e2f5b6e AM |
7821 | unsigned long r_symndx; |
| 7822 | asection *sym_sec; | |
| 7823 | struct elf_link_hash_entry *h; | |
| 7824 | Elf_Internal_Sym *sym; | |
| 51aecdc5 | 7825 | bfd_vma offset; |
| 1e2f5b6e | 7826 | |
| 51aecdc5 | 7827 | /* .opd contains an array of 16 or 24 byte entries. We're |
| 1e2f5b6e AM |
7828 | only interested in the reloc pointing to a function entry |
| 7829 | point. */ | |
| 51aecdc5 AM |
7830 | offset = rel->r_offset; |
| 7831 | if (rel + 1 == relend | |
| 7832 | || rel[1].r_offset != offset + 8) | |
| 1e2f5b6e AM |
7833 | { |
| 7834 | /* If someone messes with .opd alignment then after a | |
| 7835 | "ld -r" we might have padding in the middle of .opd. | |
| 7836 | Also, there's nothing to prevent someone putting | |
| 7837 | something silly in .opd with the assembler. No .opd | |
| b34976b6 | 7838 | optimization for them! */ |
| 3f764659 | 7839 | broken_opd: |
| 1e2f5b6e | 7840 | (*_bfd_error_handler) |
| d003868e | 7841 | (_("%B: .opd is not a regular array of opd entries"), ibfd); |
| 51aecdc5 | 7842 | broken = TRUE; |
| 1e2f5b6e AM |
7843 | break; |
| 7844 | } | |
| 7845 | ||
| 50bc7936 AM |
7846 | if ((r_type = ELF64_R_TYPE (rel->r_info)) != R_PPC64_ADDR64 |
| 7847 | || (r_type = ELF64_R_TYPE ((rel + 1)->r_info)) != R_PPC64_TOC) | |
| 7848 | { | |
| 7849 | (*_bfd_error_handler) | |
| d003868e AM |
7850 | (_("%B: unexpected reloc type %u in .opd section"), |
| 7851 | ibfd, r_type); | |
| 51aecdc5 | 7852 | broken = TRUE; |
| 50bc7936 AM |
7853 | break; |
| 7854 | } | |
| 7855 | ||
| 1e2f5b6e | 7856 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 411e1bfb AM |
7857 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 7858 | r_symndx, ibfd)) | |
| 50bc7936 | 7859 | goto error_ret; |
| 1e2f5b6e AM |
7860 | |
| 7861 | if (sym_sec == NULL || sym_sec->owner == NULL) | |
| 7862 | { | |
| 411e1bfb AM |
7863 | const char *sym_name; |
| 7864 | if (h != NULL) | |
| 7865 | sym_name = h->root.root.string; | |
| 7866 | else | |
| 26c61ae5 L |
7867 | sym_name = bfd_elf_sym_name (ibfd, symtab_hdr, sym, |
| 7868 | sym_sec); | |
| 411e1bfb | 7869 | |
| 1e2f5b6e | 7870 | (*_bfd_error_handler) |
| d003868e AM |
7871 | (_("%B: undefined sym `%s' in .opd section"), |
| 7872 | ibfd, sym_name); | |
| 51aecdc5 | 7873 | broken = TRUE; |
| 1e2f5b6e AM |
7874 | break; |
| 7875 | } | |
| 7876 | ||
| 51020317 AM |
7877 | /* opd entries are always for functions defined in the |
| 7878 | current input bfd. If the symbol isn't defined in the | |
| 7879 | input bfd, then we won't be using the function in this | |
| 7880 | bfd; It must be defined in a linkonce section in another | |
| 7881 | bfd, or is weak. It's also possible that we are | |
| 7882 | discarding the function due to a linker script /DISCARD/, | |
| 7883 | which we test for via the output_section. */ | |
| 7884 | if (sym_sec->owner != ibfd | |
| 7885 | || sym_sec->output_section == bfd_abs_section_ptr) | |
| b34976b6 | 7886 | need_edit = TRUE; |
| 1e2f5b6e | 7887 | |
| 50bc7936 | 7888 | rel += 2; |
| 51aecdc5 AM |
7889 | if (rel + 1 == relend |
| 7890 | || (rel + 2 < relend | |
| 7891 | && ELF64_R_TYPE (rel[2].r_info) == R_PPC64_TOC)) | |
| 7892 | ++rel; | |
| 7893 | ||
| 7894 | if (rel == relend) | |
| 3f764659 JJ |
7895 | { |
| 7896 | if (sec->size == offset + 24) | |
| 7897 | { | |
| 7898 | need_pad = NULL; | |
| 7899 | break; | |
| 7900 | } | |
| 51aecdc5 | 7901 | if (sec->size == offset + 16) |
| 3f764659 JJ |
7902 | { |
| 7903 | cnt_16b++; | |
| 7904 | break; | |
| 7905 | } | |
| 7906 | goto broken_opd; | |
| 7907 | } | |
| 3f764659 JJ |
7908 | else if (rel + 1 < relend |
| 7909 | && ELF64_R_TYPE (rel[0].r_info) == R_PPC64_ADDR64 | |
| 7910 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOC) | |
| 7911 | { | |
| 51aecdc5 AM |
7912 | if (rel[0].r_offset == offset + 16) |
| 7913 | cnt_16b++; | |
| 7914 | else if (rel[0].r_offset != offset + 24) | |
| 7915 | goto broken_opd; | |
| 3f764659 JJ |
7916 | } |
| 7917 | else | |
| 7918 | goto broken_opd; | |
| 1e2f5b6e AM |
7919 | } |
| 7920 | ||
| e7d1c40c | 7921 | add_aux_fields = htab->params->non_overlapping_opd && cnt_16b > 0; |
| 3f764659 | 7922 | |
| 51aecdc5 | 7923 | if (!broken && (need_edit || add_aux_fields)) |
| 1e2f5b6e AM |
7924 | { |
| 7925 | Elf_Internal_Rela *write_rel; | |
| d4730f92 | 7926 | Elf_Internal_Shdr *rel_hdr; |
| 1e2f5b6e | 7927 | bfd_byte *rptr, *wptr; |
| 983bddc8 | 7928 | bfd_byte *new_contents; |
| 74f0fb50 AM |
7929 | bfd_size_type amt; |
| 7930 | ||
| 983bddc8 | 7931 | new_contents = NULL; |
| 51aecdc5 | 7932 | amt = OPD_NDX (sec->size) * sizeof (long); |
| 74f0fb50 | 7933 | opd = &ppc64_elf_section_data (sec)->u.opd; |
| 33c0ec9d | 7934 | opd->adjust = bfd_zalloc (sec->owner, amt); |
| 74f0fb50 AM |
7935 | if (opd->adjust == NULL) |
| 7936 | return FALSE; | |
| 7937 | ppc64_elf_section_data (sec)->sec_type = sec_opd; | |
| 1e2f5b6e AM |
7938 | |
| 7939 | /* This seems a waste of time as input .opd sections are all | |
| 7940 | zeros as generated by gcc, but I suppose there's no reason | |
| 7941 | this will always be so. We might start putting something in | |
| 7942 | the third word of .opd entries. */ | |
| 7943 | if ((sec->flags & SEC_IN_MEMORY) == 0) | |
| 7944 | { | |
| eea6121a AM |
7945 | bfd_byte *loc; |
| 7946 | if (!bfd_malloc_and_get_section (ibfd, sec, &loc)) | |
| 6cdc0ccc | 7947 | { |
| eea6121a AM |
7948 | if (loc != NULL) |
| 7949 | free (loc); | |
| 50bc7936 | 7950 | error_ret: |
| 6cdc0ccc AM |
7951 | if (local_syms != NULL |
| 7952 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 7953 | free (local_syms); | |
| 6cdc0ccc AM |
7954 | if (elf_section_data (sec)->relocs != relstart) |
| 7955 | free (relstart); | |
| b34976b6 | 7956 | return FALSE; |
| 6cdc0ccc | 7957 | } |
| 1e2f5b6e AM |
7958 | sec->contents = loc; |
| 7959 | sec->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 7960 | } | |
| 7961 | ||
| 7962 | elf_section_data (sec)->relocs = relstart; | |
| 7963 | ||
| 3f764659 | 7964 | new_contents = sec->contents; |
| 3f764659 JJ |
7965 | if (add_aux_fields) |
| 7966 | { | |
| 7967 | new_contents = bfd_malloc (sec->size + cnt_16b * 8); | |
| 7968 | if (new_contents == NULL) | |
| 7969 | return FALSE; | |
| 51aecdc5 | 7970 | need_pad = NULL; |
| 3f764659 | 7971 | } |
| b4f4e59f AM |
7972 | wptr = new_contents; |
| 7973 | rptr = sec->contents; | |
| 1e2f5b6e | 7974 | write_rel = relstart; |
| 51aecdc5 | 7975 | for (rel = relstart; rel < relend; ) |
| 1e2f5b6e | 7976 | { |
| 50bc7936 AM |
7977 | unsigned long r_symndx; |
| 7978 | asection *sym_sec; | |
| 7979 | struct elf_link_hash_entry *h; | |
| 51aecdc5 | 7980 | struct ppc_link_hash_entry *fdh = NULL; |
| 50bc7936 | 7981 | Elf_Internal_Sym *sym; |
| 51aecdc5 AM |
7982 | long opd_ent_size; |
| 7983 | Elf_Internal_Rela *next_rel; | |
| 7984 | bfd_boolean skip; | |
| 50bc7936 AM |
7985 | |
| 7986 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 7987 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| d37c89e5 | 7988 | r_symndx, ibfd)) |
| 50bc7936 AM |
7989 | goto error_ret; |
| 7990 | ||
| 51aecdc5 AM |
7991 | next_rel = rel + 2; |
| 7992 | if (next_rel + 1 == relend | |
| 7993 | || (next_rel + 2 < relend | |
| 7994 | && ELF64_R_TYPE (next_rel[2].r_info) == R_PPC64_TOC)) | |
| 7995 | ++next_rel; | |
| 7996 | ||
| 7997 | /* See if the .opd entry is full 24 byte or | |
| 7998 | 16 byte (with fd_aux entry overlapped with next | |
| 7999 | fd_func). */ | |
| 8000 | opd_ent_size = 24; | |
| 8001 | if (next_rel == relend) | |
| 1e2f5b6e | 8002 | { |
| 51aecdc5 | 8003 | if (sec->size == rel->r_offset + 16) |
| 3f764659 | 8004 | opd_ent_size = 16; |
| 51aecdc5 AM |
8005 | } |
| 8006 | else if (next_rel->r_offset == rel->r_offset + 16) | |
| 8007 | opd_ent_size = 16; | |
| 3f764659 | 8008 | |
| 51aecdc5 AM |
8009 | if (h != NULL |
| 8010 | && h->root.root.string[0] == '.') | |
| 8011 | { | |
| 8012 | fdh = lookup_fdh ((struct ppc_link_hash_entry *) h, htab); | |
| 8013 | if (fdh != NULL | |
| 8014 | && fdh->elf.root.type != bfd_link_hash_defined | |
| 8015 | && fdh->elf.root.type != bfd_link_hash_defweak) | |
| 8016 | fdh = NULL; | |
| 8017 | } | |
| 1e2f5b6e | 8018 | |
| 51aecdc5 AM |
8019 | skip = (sym_sec->owner != ibfd |
| 8020 | || sym_sec->output_section == bfd_abs_section_ptr); | |
| 8021 | if (skip) | |
| 8022 | { | |
| 8023 | if (fdh != NULL && sym_sec->owner == ibfd) | |
| a4aa0fb7 | 8024 | { |
| 51aecdc5 AM |
8025 | /* Arrange for the function descriptor sym |
| 8026 | to be dropped. */ | |
| 8027 | fdh->elf.root.u.def.value = 0; | |
| 8028 | fdh->elf.root.u.def.section = sym_sec; | |
| a4aa0fb7 | 8029 | } |
| 51aecdc5 | 8030 | opd->adjust[OPD_NDX (rel->r_offset)] = -1; |
| 1e2f5b6e | 8031 | |
| 0e1862bb | 8032 | if (NO_OPD_RELOCS || bfd_link_relocatable (info)) |
| 51aecdc5 AM |
8033 | rel = next_rel; |
| 8034 | else | |
| 8035 | while (1) | |
| 8036 | { | |
| 8037 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 8038 | NULL, h, sym)) | |
| 8039 | goto error_ret; | |
| 754021d0 | 8040 | |
| 51aecdc5 AM |
8041 | if (++rel == next_rel) |
| 8042 | break; | |
| 1e2f5b6e | 8043 | |
| 51aecdc5 AM |
8044 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8045 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8046 | r_symndx, ibfd)) | |
| 8047 | goto error_ret; | |
| 8048 | } | |
| 50bc7936 AM |
8049 | } |
| 8050 | else | |
| 1e2f5b6e | 8051 | { |
| 51aecdc5 AM |
8052 | /* We'll be keeping this opd entry. */ |
| 8053 | long adjust; | |
| 8054 | ||
| 8055 | if (fdh != NULL) | |
| 8056 | { | |
| 8057 | /* Redefine the function descriptor symbol to | |
| 8058 | this location in the opd section. It is | |
| 8059 | necessary to update the value here rather | |
| 8060 | than using an array of adjustments as we do | |
| 8061 | for local symbols, because various places | |
| 8062 | in the generic ELF code use the value | |
| 8063 | stored in u.def.value. */ | |
| 8064 | fdh->elf.root.u.def.value = wptr - new_contents; | |
| 8065 | fdh->adjust_done = 1; | |
| 8066 | } | |
| 8067 | ||
| 8068 | /* Local syms are a bit tricky. We could | |
| 8069 | tweak them as they can be cached, but | |
| 8070 | we'd need to look through the local syms | |
| 8071 | for the function descriptor sym which we | |
| 8072 | don't have at the moment. So keep an | |
| 8073 | array of adjustments. */ | |
| 8074 | adjust = (wptr - new_contents) - (rptr - sec->contents); | |
| 8075 | opd->adjust[OPD_NDX (rel->r_offset)] = adjust; | |
| 8076 | ||
| 8077 | if (wptr != rptr) | |
| 8078 | memcpy (wptr, rptr, opd_ent_size); | |
| 8079 | wptr += opd_ent_size; | |
| 8080 | if (add_aux_fields && opd_ent_size == 16) | |
| 8081 | { | |
| 8082 | memset (wptr, '\0', 8); | |
| 8083 | wptr += 8; | |
| 8084 | } | |
| 8085 | ||
| 50bc7936 | 8086 | /* We need to adjust any reloc offsets to point to the |
| 51aecdc5 AM |
8087 | new opd entries. */ |
| 8088 | for ( ; rel != next_rel; ++rel) | |
| 8089 | { | |
| 8090 | rel->r_offset += adjust; | |
| 8091 | if (write_rel != rel) | |
| 8092 | memcpy (write_rel, rel, sizeof (*rel)); | |
| 8093 | ++write_rel; | |
| 8094 | } | |
| 1e2f5b6e | 8095 | } |
| 51aecdc5 AM |
8096 | |
| 8097 | rptr += opd_ent_size; | |
| 1e2f5b6e AM |
8098 | } |
| 8099 | ||
| 3f764659 | 8100 | sec->size = wptr - new_contents; |
| 1e2f5b6e | 8101 | sec->reloc_count = write_rel - relstart; |
| 3f764659 JJ |
8102 | if (add_aux_fields) |
| 8103 | { | |
| 8104 | free (sec->contents); | |
| 8105 | sec->contents = new_contents; | |
| 8106 | } | |
| 8107 | ||
| 05bf9422 | 8108 | /* Fudge the header size too, as this is used later in |
| cdcf6e38 | 8109 | elf_bfd_final_link if we are emitting relocs. */ |
| d4730f92 BS |
8110 | rel_hdr = _bfd_elf_single_rel_hdr (sec); |
| 8111 | rel_hdr->sh_size = sec->reloc_count * rel_hdr->sh_entsize; | |
| 754021d0 | 8112 | some_edited = TRUE; |
| 1e2f5b6e | 8113 | } |
| 6cdc0ccc | 8114 | else if (elf_section_data (sec)->relocs != relstart) |
| 1e2f5b6e | 8115 | free (relstart); |
| 6cdc0ccc | 8116 | |
| 411e1bfb AM |
8117 | if (local_syms != NULL |
| 8118 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 8119 | { | |
| 8120 | if (!info->keep_memory) | |
| 8121 | free (local_syms); | |
| 8122 | else | |
| 8123 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 8124 | } | |
| 8125 | } | |
| 8126 | ||
| 754021d0 AM |
8127 | if (some_edited) |
| 8128 | elf_link_hash_traverse (elf_hash_table (info), adjust_opd_syms, NULL); | |
| 8129 | ||
| 3f764659 JJ |
8130 | /* If we are doing a final link and the last .opd entry is just 16 byte |
| 8131 | long, add a 8 byte padding after it. */ | |
| 0e1862bb | 8132 | if (need_pad != NULL && !bfd_link_relocatable (info)) |
| 3f764659 JJ |
8133 | { |
| 8134 | bfd_byte *p; | |
| 8135 | ||
| 8136 | if ((need_pad->flags & SEC_IN_MEMORY) == 0) | |
| 8137 | { | |
| 8138 | BFD_ASSERT (need_pad->size > 0); | |
| 8139 | ||
| 8140 | p = bfd_malloc (need_pad->size + 8); | |
| 8141 | if (p == NULL) | |
| 8142 | return FALSE; | |
| 699733f6 | 8143 | |
| 3f764659 JJ |
8144 | if (! bfd_get_section_contents (need_pad->owner, need_pad, |
| 8145 | p, 0, need_pad->size)) | |
| 8146 | return FALSE; | |
| 8147 | ||
| 8148 | need_pad->contents = p; | |
| 8149 | need_pad->flags |= (SEC_IN_MEMORY | SEC_HAS_CONTENTS); | |
| 8150 | } | |
| 8151 | else | |
| 8152 | { | |
| 8153 | p = bfd_realloc (need_pad->contents, need_pad->size + 8); | |
| 8154 | if (p == NULL) | |
| 8155 | return FALSE; | |
| 8156 | ||
| 8157 | need_pad->contents = p; | |
| 8158 | } | |
| 8159 | ||
| 8160 | memset (need_pad->contents + need_pad->size, 0, 8); | |
| 8161 | need_pad->size += 8; | |
| 8162 | } | |
| 8163 | ||
| 411e1bfb AM |
8164 | return TRUE; |
| 8165 | } | |
| 8166 | ||
| e1918d23 | 8167 | /* Set htab->tls_get_addr and call the generic ELF tls_setup function. */ |
| 411e1bfb | 8168 | |
| e1918d23 | 8169 | asection * |
| e7d1c40c | 8170 | ppc64_elf_tls_setup (struct bfd_link_info *info) |
| 411e1bfb | 8171 | { |
| 411e1bfb AM |
8172 | struct ppc_link_hash_table *htab; |
| 8173 | ||
| 411e1bfb | 8174 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8175 | if (htab == NULL) |
| 8176 | return NULL; | |
| 8177 | ||
| ee67d69a AM |
8178 | if (abiversion (info->output_bfd) == 1) |
| 8179 | htab->opd_abi = 1; | |
| 8180 | ||
| e7d1c40c | 8181 | if (htab->params->no_multi_toc) |
| 33c0ec9d AM |
8182 | htab->do_multi_toc = 0; |
| 8183 | else if (!htab->do_multi_toc) | |
| e7d1c40c | 8184 | htab->params->no_multi_toc = 1; |
| 33c0ec9d | 8185 | |
| 3a71aa26 AM |
8186 | htab->tls_get_addr = ((struct ppc_link_hash_entry *) |
| 8187 | elf_link_hash_lookup (&htab->elf, ".__tls_get_addr", | |
| 8188 | FALSE, FALSE, TRUE)); | |
| a7f2871e AM |
8189 | /* Move dynamic linking info to the function descriptor sym. */ |
| 8190 | if (htab->tls_get_addr != NULL) | |
| 8191 | func_desc_adjust (&htab->tls_get_addr->elf, info); | |
| 3a71aa26 AM |
8192 | htab->tls_get_addr_fd = ((struct ppc_link_hash_entry *) |
| 8193 | elf_link_hash_lookup (&htab->elf, "__tls_get_addr", | |
| 8194 | FALSE, FALSE, TRUE)); | |
| 7c9cf415 | 8195 | if (htab->params->tls_get_addr_opt) |
| a7f2871e AM |
8196 | { |
| 8197 | struct elf_link_hash_entry *opt, *opt_fd, *tga, *tga_fd; | |
| 8198 | ||
| 8199 | opt = elf_link_hash_lookup (&htab->elf, ".__tls_get_addr_opt", | |
| 8200 | FALSE, FALSE, TRUE); | |
| 8201 | if (opt != NULL) | |
| 8202 | func_desc_adjust (opt, info); | |
| 8203 | opt_fd = elf_link_hash_lookup (&htab->elf, "__tls_get_addr_opt", | |
| 8204 | FALSE, FALSE, TRUE); | |
| 8205 | if (opt_fd != NULL | |
| 8206 | && (opt_fd->root.type == bfd_link_hash_defined | |
| 8207 | || opt_fd->root.type == bfd_link_hash_defweak)) | |
| 8208 | { | |
| 8209 | /* If glibc supports an optimized __tls_get_addr call stub, | |
| 8210 | signalled by the presence of __tls_get_addr_opt, and we'll | |
| 8211 | be calling __tls_get_addr via a plt call stub, then | |
| 8212 | make __tls_get_addr point to __tls_get_addr_opt. */ | |
| 8213 | tga_fd = &htab->tls_get_addr_fd->elf; | |
| 8214 | if (htab->elf.dynamic_sections_created | |
| 8215 | && tga_fd != NULL | |
| 8216 | && (tga_fd->type == STT_FUNC | |
| 8217 | || tga_fd->needs_plt) | |
| 8218 | && !(SYMBOL_CALLS_LOCAL (info, tga_fd) | |
| 8219 | || (ELF_ST_VISIBILITY (tga_fd->other) != STV_DEFAULT | |
| 8220 | && tga_fd->root.type == bfd_link_hash_undefweak))) | |
| 8221 | { | |
| 8222 | struct plt_entry *ent; | |
| 8223 | ||
| 8224 | for (ent = tga_fd->plt.plist; ent != NULL; ent = ent->next) | |
| 8225 | if (ent->plt.refcount > 0) | |
| 8226 | break; | |
| 8227 | if (ent != NULL) | |
| 8228 | { | |
| 8229 | tga_fd->root.type = bfd_link_hash_indirect; | |
| 8230 | tga_fd->root.u.i.link = &opt_fd->root; | |
| 8231 | ppc64_elf_copy_indirect_symbol (info, opt_fd, tga_fd); | |
| 3bd43ebc | 8232 | opt_fd->forced_local = 0; |
| a7f2871e AM |
8233 | if (opt_fd->dynindx != -1) |
| 8234 | { | |
| 8235 | /* Use __tls_get_addr_opt in dynamic relocations. */ | |
| 8236 | opt_fd->dynindx = -1; | |
| 8237 | _bfd_elf_strtab_delref (elf_hash_table (info)->dynstr, | |
| 8238 | opt_fd->dynstr_index); | |
| 8239 | if (!bfd_elf_link_record_dynamic_symbol (info, opt_fd)) | |
| 854b41e7 | 8240 | return NULL; |
| a7f2871e AM |
8241 | } |
| 8242 | htab->tls_get_addr_fd = (struct ppc_link_hash_entry *) opt_fd; | |
| 8243 | tga = &htab->tls_get_addr->elf; | |
| 8244 | if (opt != NULL && tga != NULL) | |
| 8245 | { | |
| 8246 | tga->root.type = bfd_link_hash_indirect; | |
| 8247 | tga->root.u.i.link = &opt->root; | |
| 8248 | ppc64_elf_copy_indirect_symbol (info, opt, tga); | |
| 3bd43ebc | 8249 | opt->forced_local = 0; |
| a7f2871e AM |
8250 | _bfd_elf_link_hash_hide_symbol (info, opt, |
| 8251 | tga->forced_local); | |
| 8252 | htab->tls_get_addr = (struct ppc_link_hash_entry *) opt; | |
| 8253 | } | |
| 8254 | htab->tls_get_addr_fd->oh = htab->tls_get_addr; | |
| 8255 | htab->tls_get_addr_fd->is_func_descriptor = 1; | |
| 8256 | if (htab->tls_get_addr != NULL) | |
| 8257 | { | |
| 8258 | htab->tls_get_addr->oh = htab->tls_get_addr_fd; | |
| 8259 | htab->tls_get_addr->is_func = 1; | |
| 8260 | } | |
| 8261 | } | |
| 8262 | } | |
| 8263 | } | |
| 7c9cf415 AM |
8264 | else if (htab->params->tls_get_addr_opt < 0) |
| 8265 | htab->params->tls_get_addr_opt = 0; | |
| a7f2871e | 8266 | } |
| 33c0ec9d | 8267 | return _bfd_elf_tls_setup (info->output_bfd, info); |
| 3a71aa26 | 8268 | } |
| 8387904d | 8269 | |
| 3a71aa26 AM |
8270 | /* Return TRUE iff REL is a branch reloc with a global symbol matching |
| 8271 | HASH1 or HASH2. */ | |
| 8387904d | 8272 | |
| 3a71aa26 AM |
8273 | static bfd_boolean |
| 8274 | branch_reloc_hash_match (const bfd *ibfd, | |
| 8275 | const Elf_Internal_Rela *rel, | |
| 8276 | const struct ppc_link_hash_entry *hash1, | |
| 8277 | const struct ppc_link_hash_entry *hash2) | |
| 8278 | { | |
| 8279 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 8280 | enum elf_ppc64_reloc_type r_type = ELF64_R_TYPE (rel->r_info); | |
| 8281 | unsigned int r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8282 | ||
| e054468f | 8283 | if (r_symndx >= symtab_hdr->sh_info && is_branch_reloc (r_type)) |
| 8387904d | 8284 | { |
| 3a71aa26 AM |
8285 | struct elf_link_hash_entry **sym_hashes = elf_sym_hashes (ibfd); |
| 8286 | struct elf_link_hash_entry *h; | |
| 8387904d | 8287 | |
| 3a71aa26 | 8288 | h = sym_hashes[r_symndx - symtab_hdr->sh_info]; |
| b31867b6 | 8289 | h = elf_follow_link (h); |
| 3a71aa26 AM |
8290 | if (h == &hash1->elf || h == &hash2->elf) |
| 8291 | return TRUE; | |
| a48ebf4d | 8292 | } |
| 3a71aa26 | 8293 | return FALSE; |
| 951fd09b | 8294 | } |
| 411e1bfb | 8295 | |
| 951fd09b AM |
8296 | /* Run through all the TLS relocs looking for optimization |
| 8297 | opportunities. The linker has been hacked (see ppc64elf.em) to do | |
| 8298 | a preliminary section layout so that we know the TLS segment | |
| 8299 | offsets. We can't optimize earlier because some optimizations need | |
| 8300 | to know the tp offset, and we need to optimize before allocating | |
| 8301 | dynamic relocations. */ | |
| 8302 | ||
| 8303 | bfd_boolean | |
| 33c0ec9d | 8304 | ppc64_elf_tls_optimize (struct bfd_link_info *info) |
| 951fd09b AM |
8305 | { |
| 8306 | bfd *ibfd; | |
| 8307 | asection *sec; | |
| 8308 | struct ppc_link_hash_table *htab; | |
| 663a1470 | 8309 | unsigned char *toc_ref; |
| 102890f0 | 8310 | int pass; |
| 951fd09b | 8311 | |
| 3cbc1e5e | 8312 | if (!bfd_link_executable (info)) |
| 411e1bfb AM |
8313 | return TRUE; |
| 8314 | ||
| 951fd09b | 8315 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
8316 | if (htab == NULL) |
| 8317 | return FALSE; | |
| 8318 | ||
| 663a1470 AM |
8319 | /* Make two passes over the relocs. On the first pass, mark toc |
| 8320 | entries involved with tls relocs, and check that tls relocs | |
| 8321 | involved in setting up a tls_get_addr call are indeed followed by | |
| 8322 | such a call. If they are not, we can't do any tls optimization. | |
| 8323 | On the second pass twiddle tls_mask flags to notify | |
| 8324 | relocate_section that optimization can be done, and adjust got | |
| 8325 | and plt refcounts. */ | |
| 8326 | toc_ref = NULL; | |
| 8327 | for (pass = 0; pass < 2; ++pass) | |
| c72f2fb2 | 8328 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 663a1470 AM |
8329 | { |
| 8330 | Elf_Internal_Sym *locsyms = NULL; | |
| 8331 | asection *toc = bfd_get_section_by_name (ibfd, ".toc"); | |
| 8332 | ||
| 102890f0 AM |
8333 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 8334 | if (sec->has_tls_reloc && !bfd_is_abs_section (sec->output_section)) | |
| 8335 | { | |
| 8336 | Elf_Internal_Rela *relstart, *rel, *relend; | |
| 663a1470 | 8337 | bfd_boolean found_tls_get_addr_arg = 0; |
| 411e1bfb | 8338 | |
| 102890f0 AM |
8339 | /* Read the relocations. */ |
| 8340 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 8341 | info->keep_memory); | |
| 8342 | if (relstart == NULL) | |
| 2915c55b JK |
8343 | { |
| 8344 | free (toc_ref); | |
| 8345 | return FALSE; | |
| 8346 | } | |
| 411e1bfb | 8347 | |
| 102890f0 AM |
8348 | relend = relstart + sec->reloc_count; |
| 8349 | for (rel = relstart; rel < relend; rel++) | |
| 8350 | { | |
| 8351 | enum elf_ppc64_reloc_type r_type; | |
| 8352 | unsigned long r_symndx; | |
| 8353 | struct elf_link_hash_entry *h; | |
| 8354 | Elf_Internal_Sym *sym; | |
| 8355 | asection *sym_sec; | |
| f961d9dd AM |
8356 | unsigned char *tls_mask; |
| 8357 | unsigned char tls_set, tls_clear, tls_type = 0; | |
| 102890f0 AM |
8358 | bfd_vma value; |
| 8359 | bfd_boolean ok_tprel, is_local; | |
| 8360 | long toc_ref_index = 0; | |
| 8361 | int expecting_tls_get_addr = 0; | |
| 663a1470 | 8362 | bfd_boolean ret = FALSE; |
| 411e1bfb | 8363 | |
| 102890f0 AM |
8364 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 8365 | if (!get_sym_h (&h, &sym, &sym_sec, &tls_mask, &locsyms, | |
| 8366 | r_symndx, ibfd)) | |
| 8367 | { | |
| 8368 | err_free_rel: | |
| 8369 | if (elf_section_data (sec)->relocs != relstart) | |
| 8370 | free (relstart); | |
| 8371 | if (toc_ref != NULL) | |
| 8372 | free (toc_ref); | |
| 8373 | if (locsyms != NULL | |
| 0ffa91dd | 8374 | && (elf_symtab_hdr (ibfd).contents |
| 102890f0 AM |
8375 | != (unsigned char *) locsyms)) |
| 8376 | free (locsyms); | |
| 663a1470 | 8377 | return ret; |
| 102890f0 | 8378 | } |
| 411e1bfb | 8379 | |
| 102890f0 AM |
8380 | if (h != NULL) |
| 8381 | { | |
| 766bc656 AM |
8382 | if (h->root.type == bfd_link_hash_defined |
| 8383 | || h->root.type == bfd_link_hash_defweak) | |
| 8384 | value = h->root.u.def.value; | |
| 8385 | else if (h->root.type == bfd_link_hash_undefweak) | |
| 8386 | value = 0; | |
| 8387 | else | |
| 663a1470 AM |
8388 | { |
| 8389 | found_tls_get_addr_arg = 0; | |
| 8390 | continue; | |
| 8391 | } | |
| 102890f0 AM |
8392 | } |
| 8393 | else | |
| 8394 | /* Symbols referenced by TLS relocs must be of type | |
| 8395 | STT_TLS. So no need for .opd local sym adjust. */ | |
| 8396 | value = sym->st_value; | |
| 8397 | ||
| 8398 | ok_tprel = FALSE; | |
| 8399 | is_local = FALSE; | |
| 8400 | if (h == NULL | |
| 8401 | || !h->def_dynamic) | |
| 8402 | { | |
| 8403 | is_local = TRUE; | |
| 766bc656 AM |
8404 | if (h != NULL |
| 8405 | && h->root.type == bfd_link_hash_undefweak) | |
| 8406 | ok_tprel = TRUE; | |
| c27b8c2a AM |
8407 | else if (sym_sec != NULL |
| 8408 | && sym_sec->output_section != NULL) | |
| 766bc656 AM |
8409 | { |
| 8410 | value += sym_sec->output_offset; | |
| 8411 | value += sym_sec->output_section->vma; | |
| 8412 | value -= htab->elf.tls_sec->vma; | |
| 8413 | ok_tprel = (value + TP_OFFSET + ((bfd_vma) 1 << 31) | |
| 8414 | < (bfd_vma) 1 << 32); | |
| 8415 | } | |
| 102890f0 | 8416 | } |
| 951fd09b | 8417 | |
| 102890f0 | 8418 | r_type = ELF64_R_TYPE (rel->r_info); |
| 663a1470 AM |
8419 | /* If this section has old-style __tls_get_addr calls |
| 8420 | without marker relocs, then check that each | |
| 8421 | __tls_get_addr call reloc is preceded by a reloc | |
| 8422 | that conceivably belongs to the __tls_get_addr arg | |
| 8423 | setup insn. If we don't find matching arg setup | |
| 8424 | relocs, don't do any tls optimization. */ | |
| 8425 | if (pass == 0 | |
| 8426 | && sec->has_tls_get_addr_call | |
| 8427 | && h != NULL | |
| 8428 | && (h == &htab->tls_get_addr->elf | |
| 8429 | || h == &htab->tls_get_addr_fd->elf) | |
| 8430 | && !found_tls_get_addr_arg | |
| 8431 | && is_branch_reloc (r_type)) | |
| 8432 | { | |
| 25f53a85 | 8433 | info->callbacks->minfo (_("%H __tls_get_addr lost arg, " |
| 663a1470 AM |
8434 | "TLS optimization disabled\n"), |
| 8435 | ibfd, sec, rel->r_offset); | |
| 8436 | ret = TRUE; | |
| 8437 | goto err_free_rel; | |
| 8438 | } | |
| 8439 | ||
| 8440 | found_tls_get_addr_arg = 0; | |
| 102890f0 AM |
8441 | switch (r_type) |
| 8442 | { | |
| 8443 | case R_PPC64_GOT_TLSLD16: | |
| 8444 | case R_PPC64_GOT_TLSLD16_LO: | |
| 8445 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8446 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8447 | /* Fall thru */ |
| 8448 | ||
| 8449 | case R_PPC64_GOT_TLSLD16_HI: | |
| 8450 | case R_PPC64_GOT_TLSLD16_HA: | |
| 8451 | /* These relocs should never be against a symbol | |
| 8452 | defined in a shared lib. Leave them alone if | |
| 8453 | that turns out to be the case. */ | |
| 8454 | if (!is_local) | |
| 8455 | continue; | |
| 411e1bfb | 8456 | |
| 102890f0 | 8457 | /* LD -> LE */ |
| 411e1bfb | 8458 | tls_set = 0; |
| 102890f0 AM |
8459 | tls_clear = TLS_LD; |
| 8460 | tls_type = TLS_TLS | TLS_LD; | |
| 8461 | break; | |
| 411e1bfb | 8462 | |
| 102890f0 AM |
8463 | case R_PPC64_GOT_TLSGD16: |
| 8464 | case R_PPC64_GOT_TLSGD16_LO: | |
| 8465 | expecting_tls_get_addr = 1; | |
| 663a1470 | 8466 | found_tls_get_addr_arg = 1; |
| 102890f0 AM |
8467 | /* Fall thru */ |
| 8468 | ||
| 8469 | case R_PPC64_GOT_TLSGD16_HI: | |
| 8470 | case R_PPC64_GOT_TLSGD16_HA: | |
| 8471 | if (ok_tprel) | |
| 8472 | /* GD -> LE */ | |
| 411e1bfb | 8473 | tls_set = 0; |
| 102890f0 AM |
8474 | else |
| 8475 | /* GD -> IE */ | |
| 8476 | tls_set = TLS_TLS | TLS_TPRELGD; | |
| 8477 | tls_clear = TLS_GD; | |
| 8478 | tls_type = TLS_TLS | TLS_GD; | |
| 8479 | break; | |
| 8480 | ||
| 8481 | case R_PPC64_GOT_TPREL16_DS: | |
| 8482 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 8483 | case R_PPC64_GOT_TPREL16_HI: | |
| 8484 | case R_PPC64_GOT_TPREL16_HA: | |
| 8485 | if (ok_tprel) | |
| 8486 | { | |
| 8487 | /* IE -> LE */ | |
| 8488 | tls_set = 0; | |
| 8489 | tls_clear = TLS_TPREL; | |
| 8490 | tls_type = TLS_TLS | TLS_TPREL; | |
| 8491 | break; | |
| 8492 | } | |
| 411e1bfb AM |
8493 | continue; |
| 8494 | ||
| 727fc41e AM |
8495 | case R_PPC64_TLSGD: |
| 8496 | case R_PPC64_TLSLD: | |
| 663a1470 AM |
8497 | found_tls_get_addr_arg = 1; |
| 8498 | /* Fall thru */ | |
| 8499 | ||
| 8500 | case R_PPC64_TLS: | |
| 8501 | case R_PPC64_TOC16: | |
| 8502 | case R_PPC64_TOC16_LO: | |
| 102890f0 AM |
8503 | if (sym_sec == NULL || sym_sec != toc) |
| 8504 | continue; | |
| 8505 | ||
| 8506 | /* Mark this toc entry as referenced by a TLS | |
| 8507 | code sequence. We can do that now in the | |
| 8508 | case of R_PPC64_TLS, and after checking for | |
| 8509 | tls_get_addr for the TOC16 relocs. */ | |
| 8510 | if (toc_ref == NULL) | |
| 663a1470 AM |
8511 | toc_ref = bfd_zmalloc (toc->output_section->rawsize / 8); |
| 8512 | if (toc_ref == NULL) | |
| 8513 | goto err_free_rel; | |
| 8514 | ||
| 102890f0 AM |
8515 | if (h != NULL) |
| 8516 | value = h->root.u.def.value; | |
| 8517 | else | |
| 8518 | value = sym->st_value; | |
| 8519 | value += rel->r_addend; | |
| 73242275 AM |
8520 | if (value % 8 != 0) |
| 8521 | continue; | |
| 8522 | BFD_ASSERT (value < toc->size | |
| 8523 | && toc->output_offset % 8 == 0); | |
| 663a1470 | 8524 | toc_ref_index = (value + toc->output_offset) / 8; |
| 727fc41e AM |
8525 | if (r_type == R_PPC64_TLS |
| 8526 | || r_type == R_PPC64_TLSGD | |
| 8527 | || r_type == R_PPC64_TLSLD) | |
| 102890f0 AM |
8528 | { |
| 8529 | toc_ref[toc_ref_index] = 1; | |
| 8530 | continue; | |
| 8531 | } | |
| 8532 | ||
| 8533 | if (pass != 0 && toc_ref[toc_ref_index] == 0) | |
| 8534 | continue; | |
| 8535 | ||
| 8536 | tls_set = 0; | |
| 8537 | tls_clear = 0; | |
| 8538 | expecting_tls_get_addr = 2; | |
| 8539 | break; | |
| 8540 | ||
| 8541 | case R_PPC64_TPREL64: | |
| 8542 | if (pass == 0 | |
| 8543 | || sec != toc | |
| 8544 | || toc_ref == NULL | |
| 663a1470 | 8545 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8546 | continue; |
| 8547 | if (ok_tprel) | |
| 8548 | { | |
| 8549 | /* IE -> LE */ | |
| 8550 | tls_set = TLS_EXPLICIT; | |
| 8551 | tls_clear = TLS_TPREL; | |
| 8552 | break; | |
| 8553 | } | |
| 8554 | continue; | |
| 8555 | ||
| 8556 | case R_PPC64_DTPMOD64: | |
| 8557 | if (pass == 0 | |
| 8558 | || sec != toc | |
| 8559 | || toc_ref == NULL | |
| 663a1470 | 8560 | || !toc_ref[(rel->r_offset + toc->output_offset) / 8]) |
| 102890f0 AM |
8561 | continue; |
| 8562 | if (rel + 1 < relend | |
| 8563 | && (rel[1].r_info | |
| 8564 | == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64)) | |
| 8565 | && rel[1].r_offset == rel->r_offset + 8) | |
| 8566 | { | |
| 8567 | if (ok_tprel) | |
| 8568 | /* GD -> LE */ | |
| 8569 | tls_set = TLS_EXPLICIT | TLS_GD; | |
| 8570 | else | |
| 8571 | /* GD -> IE */ | |
| 8572 | tls_set = TLS_EXPLICIT | TLS_GD | TLS_TPRELGD; | |
| 8573 | tls_clear = TLS_GD; | |
| 8574 | } | |
| 8575 | else | |
| 8576 | { | |
| 8577 | if (!is_local) | |
| 8578 | continue; | |
| 8579 | ||
| 8580 | /* LD -> LE */ | |
| 8581 | tls_set = TLS_EXPLICIT; | |
| 8582 | tls_clear = TLS_LD; | |
| 8583 | } | |
| 8584 | break; | |
| 8585 | ||
| 8586 | default: | |
| 8587 | continue; | |
| 8588 | } | |
| 8589 | ||
| 8590 | if (pass == 0) | |
| 8591 | { | |
| 727fc41e AM |
8592 | if (!expecting_tls_get_addr |
| 8593 | || !sec->has_tls_get_addr_call) | |
| 102890f0 AM |
8594 | continue; |
| 8595 | ||
| 3a71aa26 AM |
8596 | if (rel + 1 < relend |
| 8597 | && branch_reloc_hash_match (ibfd, rel + 1, | |
| 8598 | htab->tls_get_addr, | |
| 8599 | htab->tls_get_addr_fd)) | |
| 102890f0 | 8600 | { |
| 3a71aa26 | 8601 | if (expecting_tls_get_addr == 2) |
| 102890f0 | 8602 | { |
| 3a71aa26 | 8603 | /* Check for toc tls entries. */ |
| f961d9dd | 8604 | unsigned char *toc_tls; |
| 3a71aa26 AM |
8605 | int retval; |
| 8606 | ||
| 8607 | retval = get_tls_mask (&toc_tls, NULL, NULL, | |
| 8608 | &locsyms, | |
| 8609 | rel, ibfd); | |
| 8610 | if (retval == 0) | |
| 8611 | goto err_free_rel; | |
| 663a1470 AM |
8612 | if (toc_tls != NULL) |
| 8613 | { | |
| 8614 | if ((*toc_tls & (TLS_GD | TLS_LD)) != 0) | |
| 8615 | found_tls_get_addr_arg = 1; | |
| 8616 | if (retval > 1) | |
| 8617 | toc_ref[toc_ref_index] = 1; | |
| 8618 | } | |
| 102890f0 | 8619 | } |
| 3a71aa26 | 8620 | continue; |
| 102890f0 AM |
8621 | } |
| 8622 | ||
| 8623 | if (expecting_tls_get_addr != 1) | |
| 8624 | continue; | |
| 8625 | ||
| 8626 | /* Uh oh, we didn't find the expected call. We | |
| 8627 | could just mark this symbol to exclude it | |
| 8628 | from tls optimization but it's safer to skip | |
| 663a1470 | 8629 | the entire optimization. */ |
| 25f53a85 | 8630 | info->callbacks->minfo (_("%H arg lost __tls_get_addr, " |
| 663a1470 AM |
8631 | "TLS optimization disabled\n"), |
| 8632 | ibfd, sec, rel->r_offset); | |
| 8633 | ret = TRUE; | |
| 8634 | goto err_free_rel; | |
| 102890f0 AM |
8635 | } |
| 8636 | ||
| 85f7a9cb | 8637 | if (expecting_tls_get_addr && htab->tls_get_addr != NULL) |
| 102890f0 AM |
8638 | { |
| 8639 | struct plt_entry *ent; | |
| 8640 | for (ent = htab->tls_get_addr->elf.plt.plist; | |
| 8641 | ent != NULL; | |
| 8642 | ent = ent->next) | |
| 8643 | if (ent->addend == 0) | |
| 411e1bfb | 8644 | { |
| 102890f0 | 8645 | if (ent->plt.refcount > 0) |
| 30038c59 | 8646 | { |
| 102890f0 AM |
8647 | ent->plt.refcount -= 1; |
| 8648 | expecting_tls_get_addr = 0; | |
| 30038c59 | 8649 | } |
| 102890f0 | 8650 | break; |
| 411e1bfb | 8651 | } |
| 102890f0 | 8652 | } |
| 411e1bfb | 8653 | |
| 85f7a9cb | 8654 | if (expecting_tls_get_addr && htab->tls_get_addr_fd != NULL) |
| 102890f0 AM |
8655 | { |
| 8656 | struct plt_entry *ent; | |
| 8657 | for (ent = htab->tls_get_addr_fd->elf.plt.plist; | |
| 8658 | ent != NULL; | |
| 8659 | ent = ent->next) | |
| 8660 | if (ent->addend == 0) | |
| 411e1bfb | 8661 | { |
| 102890f0 AM |
8662 | if (ent->plt.refcount > 0) |
| 8663 | ent->plt.refcount -= 1; | |
| 8664 | break; | |
| 411e1bfb | 8665 | } |
| 102890f0 | 8666 | } |
| 411e1bfb | 8667 | |
| 102890f0 | 8668 | if (tls_clear == 0) |
| 30038c59 AM |
8669 | continue; |
| 8670 | ||
| 102890f0 AM |
8671 | if ((tls_set & TLS_EXPLICIT) == 0) |
| 8672 | { | |
| 8673 | struct got_entry *ent; | |
| 411e1bfb | 8674 | |
| 102890f0 AM |
8675 | /* Adjust got entry for this reloc. */ |
| 8676 | if (h != NULL) | |
| 8677 | ent = h->got.glist; | |
| 8678 | else | |
| 8679 | ent = elf_local_got_ents (ibfd)[r_symndx]; | |
| 411e1bfb | 8680 | |
| 102890f0 AM |
8681 | for (; ent != NULL; ent = ent->next) |
| 8682 | if (ent->addend == rel->r_addend | |
| 8683 | && ent->owner == ibfd | |
| 8684 | && ent->tls_type == tls_type) | |
| 8685 | break; | |
| 8686 | if (ent == NULL) | |
| 8687 | abort (); | |
| 411e1bfb | 8688 | |
| 102890f0 AM |
8689 | if (tls_set == 0) |
| 8690 | { | |
| 8691 | /* We managed to get rid of a got entry. */ | |
| 8692 | if (ent->got.refcount > 0) | |
| 8693 | ent->got.refcount -= 1; | |
| 8694 | } | |
| 8695 | } | |
| 8696 | else | |
| 8697 | { | |
| 8698 | /* If we got rid of a DTPMOD/DTPREL reloc pair then | |
| 8699 | we'll lose one or two dyn relocs. */ | |
| 8700 | if (!dec_dynrel_count (rel->r_info, sec, info, | |
| 19e08130 | 8701 | NULL, h, sym)) |
| 102890f0 | 8702 | return FALSE; |
| 411e1bfb | 8703 | |
| 102890f0 AM |
8704 | if (tls_set == (TLS_EXPLICIT | TLS_GD)) |
| 8705 | { | |
| 8706 | if (!dec_dynrel_count ((rel + 1)->r_info, sec, info, | |
| 19e08130 | 8707 | NULL, h, sym)) |
| 102890f0 AM |
8708 | return FALSE; |
| 8709 | } | |
| 8710 | } | |
| 411e1bfb | 8711 | |
| 102890f0 AM |
8712 | *tls_mask |= tls_set; |
| 8713 | *tls_mask &= ~tls_clear; | |
| 8714 | } | |
| 8c1d1bb8 | 8715 | |
| 102890f0 AM |
8716 | if (elf_section_data (sec)->relocs != relstart) |
| 8717 | free (relstart); | |
| 8718 | } | |
| 411e1bfb | 8719 | |
| 663a1470 AM |
8720 | if (locsyms != NULL |
| 8721 | && (elf_symtab_hdr (ibfd).contents != (unsigned char *) locsyms)) | |
| 8722 | { | |
| 8723 | if (!info->keep_memory) | |
| 8724 | free (locsyms); | |
| 8725 | else | |
| 8726 | elf_symtab_hdr (ibfd).contents = (unsigned char *) locsyms; | |
| 8727 | } | |
| 8728 | } | |
| 411e1bfb | 8729 | |
| 663a1470 AM |
8730 | if (toc_ref != NULL) |
| 8731 | free (toc_ref); | |
| b34976b6 | 8732 | return TRUE; |
| 1e2f5b6e | 8733 | } |
| b34976b6 | 8734 | |
| c5614fa4 AM |
8735 | /* Called via elf_link_hash_traverse from ppc64_elf_edit_toc to adjust |
| 8736 | the values of any global symbols in a toc section that has been | |
| 8737 | edited. Globals in toc sections should be a rarity, so this function | |
| 8738 | sets a flag if any are found in toc sections other than the one just | |
| 8739 | edited, so that futher hash table traversals can be avoided. */ | |
| 8740 | ||
| 8741 | struct adjust_toc_info | |
| 8742 | { | |
| 8743 | asection *toc; | |
| 8744 | unsigned long *skip; | |
| 8745 | bfd_boolean global_toc_syms; | |
| 8746 | }; | |
| 8747 | ||
| ba761f19 AM |
8748 | enum toc_skip_enum { ref_from_discarded = 1, can_optimize = 2 }; |
| 8749 | ||
| c5614fa4 AM |
8750 | static bfd_boolean |
| 8751 | adjust_toc_syms (struct elf_link_hash_entry *h, void *inf) | |
| 8752 | { | |
| 8753 | struct ppc_link_hash_entry *eh; | |
| 8754 | struct adjust_toc_info *toc_inf = (struct adjust_toc_info *) inf; | |
| 854b41e7 | 8755 | unsigned long i; |
| c5614fa4 | 8756 | |
| c5614fa4 AM |
8757 | if (h->root.type != bfd_link_hash_defined |
| 8758 | && h->root.type != bfd_link_hash_defweak) | |
| 8759 | return TRUE; | |
| 8760 | ||
| 8761 | eh = (struct ppc_link_hash_entry *) h; | |
| 8762 | if (eh->adjust_done) | |
| 8763 | return TRUE; | |
| 8764 | ||
| 8765 | if (eh->elf.root.u.def.section == toc_inf->toc) | |
| 8766 | { | |
| 854b41e7 AM |
8767 | if (eh->elf.root.u.def.value > toc_inf->toc->rawsize) |
| 8768 | i = toc_inf->toc->rawsize >> 3; | |
| c5614fa4 | 8769 | else |
| 854b41e7 AM |
8770 | i = eh->elf.root.u.def.value >> 3; |
| 8771 | ||
| ba761f19 | 8772 | if ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| c5614fa4 AM |
8773 | { |
| 8774 | (*_bfd_error_handler) | |
| 854b41e7 AM |
8775 | (_("%s defined on removed toc entry"), eh->elf.root.root.string); |
| 8776 | do | |
| 8777 | ++i; | |
| ba761f19 | 8778 | while ((toc_inf->skip[i] & (ref_from_discarded | can_optimize)) != 0); |
| 854b41e7 | 8779 | eh->elf.root.u.def.value = (bfd_vma) i << 3; |
| c5614fa4 | 8780 | } |
| 854b41e7 AM |
8781 | |
| 8782 | eh->elf.root.u.def.value -= toc_inf->skip[i]; | |
| c5614fa4 AM |
8783 | eh->adjust_done = 1; |
| 8784 | } | |
| 8785 | else if (strcmp (eh->elf.root.u.def.section->name, ".toc") == 0) | |
| 8786 | toc_inf->global_toc_syms = TRUE; | |
| 8787 | ||
| 8788 | return TRUE; | |
| 8789 | } | |
| 8790 | ||
| 560c8763 AM |
8791 | /* Return TRUE iff INSN is one we expect on a _LO variety toc/got reloc. */ |
| 8792 | ||
| 8793 | static bfd_boolean | |
| 8794 | ok_lo_toc_insn (unsigned int insn) | |
| 8795 | { | |
| 8796 | return ((insn & (0x3f << 26)) == 14u << 26 /* addi */ | |
| 8797 | || (insn & (0x3f << 26)) == 32u << 26 /* lwz */ | |
| 8798 | || (insn & (0x3f << 26)) == 34u << 26 /* lbz */ | |
| 8799 | || (insn & (0x3f << 26)) == 36u << 26 /* stw */ | |
| 8800 | || (insn & (0x3f << 26)) == 38u << 26 /* stb */ | |
| 8801 | || (insn & (0x3f << 26)) == 40u << 26 /* lhz */ | |
| 8802 | || (insn & (0x3f << 26)) == 42u << 26 /* lha */ | |
| 8803 | || (insn & (0x3f << 26)) == 44u << 26 /* sth */ | |
| 8804 | || (insn & (0x3f << 26)) == 46u << 26 /* lmw */ | |
| 8805 | || (insn & (0x3f << 26)) == 47u << 26 /* stmw */ | |
| 8806 | || (insn & (0x3f << 26)) == 48u << 26 /* lfs */ | |
| 8807 | || (insn & (0x3f << 26)) == 50u << 26 /* lfd */ | |
| 8808 | || (insn & (0x3f << 26)) == 52u << 26 /* stfs */ | |
| 8809 | || (insn & (0x3f << 26)) == 54u << 26 /* stfd */ | |
| 8810 | || ((insn & (0x3f << 26)) == 58u << 26 /* lwa,ld,lmd */ | |
| 8811 | && (insn & 3) != 1) | |
| 8812 | || ((insn & (0x3f << 26)) == 62u << 26 /* std, stmd */ | |
| 8813 | && ((insn & 3) == 0 || (insn & 3) == 3)) | |
| 8814 | || (insn & (0x3f << 26)) == 12u << 26 /* addic */); | |
| 8815 | } | |
| 8816 | ||
| c5614fa4 AM |
8817 | /* Examine all relocs referencing .toc sections in order to remove |
| 8818 | unused .toc entries. */ | |
| 8819 | ||
| 8820 | bfd_boolean | |
| 33c0ec9d | 8821 | ppc64_elf_edit_toc (struct bfd_link_info *info) |
| c5614fa4 AM |
8822 | { |
| 8823 | bfd *ibfd; | |
| 8824 | struct adjust_toc_info toc_inf; | |
| 67f0cbdb | 8825 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| c5614fa4 | 8826 | |
| 67f0cbdb | 8827 | htab->do_toc_opt = 1; |
| c5614fa4 | 8828 | toc_inf.global_toc_syms = TRUE; |
| c72f2fb2 | 8829 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| c5614fa4 AM |
8830 | { |
| 8831 | asection *toc, *sec; | |
| 8832 | Elf_Internal_Shdr *symtab_hdr; | |
| 8833 | Elf_Internal_Sym *local_syms; | |
| 425b145b | 8834 | Elf_Internal_Rela *relstart, *rel, *toc_relocs; |
| c5614fa4 AM |
8835 | unsigned long *skip, *drop; |
| 8836 | unsigned char *used; | |
| 8837 | unsigned char *keep, last, some_unused; | |
| 8838 | ||
| 854b41e7 AM |
8839 | if (!is_ppc64_elf (ibfd)) |
| 8840 | continue; | |
| 8841 | ||
| c5614fa4 AM |
8842 | toc = bfd_get_section_by_name (ibfd, ".toc"); |
| 8843 | if (toc == NULL | |
| 92b7a70f | 8844 | || toc->size == 0 |
| dbaa2011 AM |
8845 | || toc->sec_info_type == SEC_INFO_TYPE_JUST_SYMS |
| 8846 | || discarded_section (toc)) | |
| c5614fa4 AM |
8847 | continue; |
| 8848 | ||
| 425b145b | 8849 | toc_relocs = NULL; |
| c5614fa4 | 8850 | local_syms = NULL; |
| 0ffa91dd | 8851 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| c5614fa4 AM |
8852 | |
| 8853 | /* Look at sections dropped from the final link. */ | |
| 8854 | skip = NULL; | |
| 8855 | relstart = NULL; | |
| 8856 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) | |
| 8857 | { | |
| 8858 | if (sec->reloc_count == 0 | |
| dbaa2011 | 8859 | || !discarded_section (sec) |
| c5614fa4 AM |
8860 | || get_opd_info (sec) |
| 8861 | || (sec->flags & SEC_ALLOC) == 0 | |
| 8862 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 8863 | continue; | |
| 8864 | ||
| 8865 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, FALSE); | |
| 8866 | if (relstart == NULL) | |
| 8867 | goto error_ret; | |
| 8868 | ||
| 8869 | /* Run through the relocs to see which toc entries might be | |
| 8870 | unused. */ | |
| 8871 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 8872 | { | |
| 8873 | enum elf_ppc64_reloc_type r_type; | |
| 8874 | unsigned long r_symndx; | |
| 8875 | asection *sym_sec; | |
| 8876 | struct elf_link_hash_entry *h; | |
| 8877 | Elf_Internal_Sym *sym; | |
| 8878 | bfd_vma val; | |
| 8879 | ||
| 8880 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8881 | switch (r_type) | |
| 8882 | { | |
| 8883 | default: | |
| 8884 | continue; | |
| 8885 | ||
| 8886 | case R_PPC64_TOC16: | |
| 8887 | case R_PPC64_TOC16_LO: | |
| 8888 | case R_PPC64_TOC16_HI: | |
| 8889 | case R_PPC64_TOC16_HA: | |
| 8890 | case R_PPC64_TOC16_DS: | |
| 8891 | case R_PPC64_TOC16_LO_DS: | |
| 8892 | break; | |
| 8893 | } | |
| 8894 | ||
| 8895 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8896 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8897 | r_symndx, ibfd)) | |
| 8898 | goto error_ret; | |
| 8899 | ||
| 8900 | if (sym_sec != toc) | |
| 8901 | continue; | |
| 8902 | ||
| 8903 | if (h != NULL) | |
| 8904 | val = h->root.u.def.value; | |
| 8905 | else | |
| 8906 | val = sym->st_value; | |
| 8907 | val += rel->r_addend; | |
| 8908 | ||
| 8909 | if (val >= toc->size) | |
| 8910 | continue; | |
| 8911 | ||
| 8912 | /* Anything in the toc ought to be aligned to 8 bytes. | |
| 8913 | If not, don't mark as unused. */ | |
| 8914 | if (val & 7) | |
| 8915 | continue; | |
| 8916 | ||
| 8917 | if (skip == NULL) | |
| 8918 | { | |
| 854b41e7 | 8919 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); |
| c5614fa4 AM |
8920 | if (skip == NULL) |
| 8921 | goto error_ret; | |
| 8922 | } | |
| 8923 | ||
| ba761f19 | 8924 | skip[val >> 3] = ref_from_discarded; |
| c5614fa4 AM |
8925 | } |
| 8926 | ||
| 8927 | if (elf_section_data (sec)->relocs != relstart) | |
| 8928 | free (relstart); | |
| 8929 | } | |
| 8930 | ||
| ba761f19 AM |
8931 | /* For largetoc loads of address constants, we can convert |
| 8932 | . addis rx,2,addr@got@ha | |
| 8933 | . ld ry,addr@got@l(rx) | |
| 8934 | to | |
| 8935 | . addis rx,2,addr@toc@ha | |
| 8936 | . addi ry,rx,addr@toc@l | |
| 8937 | when addr is within 2G of the toc pointer. This then means | |
| 8938 | that the word storing "addr" in the toc is no longer needed. */ | |
| 68ffbac6 | 8939 | |
| ba761f19 AM |
8940 | if (!ppc64_elf_tdata (ibfd)->has_small_toc_reloc |
| 8941 | && toc->output_section->rawsize < (bfd_vma) 1 << 31 | |
| 8942 | && toc->reloc_count != 0) | |
| 8943 | { | |
| 8944 | /* Read toc relocs. */ | |
| 425b145b AM |
8945 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, |
| 8946 | info->keep_memory); | |
| 8947 | if (toc_relocs == NULL) | |
| ba761f19 AM |
8948 | goto error_ret; |
| 8949 | ||
| 425b145b | 8950 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) |
| ba761f19 AM |
8951 | { |
| 8952 | enum elf_ppc64_reloc_type r_type; | |
| 8953 | unsigned long r_symndx; | |
| 8954 | asection *sym_sec; | |
| 8955 | struct elf_link_hash_entry *h; | |
| 8956 | Elf_Internal_Sym *sym; | |
| 8957 | bfd_vma val, addr; | |
| 8958 | ||
| 8959 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 8960 | if (r_type != R_PPC64_ADDR64) | |
| 8961 | continue; | |
| 8962 | ||
| 8963 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 8964 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 8965 | r_symndx, ibfd)) | |
| 8966 | goto error_ret; | |
| 8967 | ||
| 425b145b | 8968 | if (sym_sec == NULL |
| c27b8c2a | 8969 | || sym_sec->output_section == NULL |
| dbaa2011 | 8970 | || discarded_section (sym_sec)) |
| 425b145b AM |
8971 | continue; |
| 8972 | ||
| afe397ea | 8973 | if (!SYMBOL_REFERENCES_LOCAL (info, h)) |
| ba761f19 AM |
8974 | continue; |
| 8975 | ||
| 8976 | if (h != NULL) | |
| bddc25c9 AM |
8977 | { |
| 8978 | if (h->type == STT_GNU_IFUNC) | |
| 8979 | continue; | |
| 8980 | val = h->root.u.def.value; | |
| 8981 | } | |
| ba761f19 | 8982 | else |
| bddc25c9 AM |
8983 | { |
| 8984 | if (ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 8985 | continue; | |
| 8986 | val = sym->st_value; | |
| 8987 | } | |
| ba761f19 AM |
8988 | val += rel->r_addend; |
| 8989 | val += sym_sec->output_section->vma + sym_sec->output_offset; | |
| 8990 | ||
| 8991 | /* We don't yet know the exact toc pointer value, but we | |
| 8992 | know it will be somewhere in the toc section. Don't | |
| 8993 | optimize if the difference from any possible toc | |
| 8994 | pointer is outside [ff..f80008000, 7fff7fff]. */ | |
| 8995 | addr = toc->output_section->vma + TOC_BASE_OFF; | |
| 8996 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 8997 | continue; | |
| 8998 | ||
| 8999 | addr = toc->output_section->vma + toc->output_section->rawsize; | |
| 9000 | if (val - addr + (bfd_vma) 0x80008000 >= (bfd_vma) 1 << 32) | |
| 9001 | continue; | |
| 9002 | ||
| 9003 | if (skip == NULL) | |
| 9004 | { | |
| 9005 | skip = bfd_zmalloc (sizeof (*skip) * (toc->size + 15) / 8); | |
| 9006 | if (skip == NULL) | |
| 9007 | goto error_ret; | |
| 9008 | } | |
| 9009 | ||
| 9010 | skip[rel->r_offset >> 3] | |
| 425b145b | 9011 | |= can_optimize | ((rel - toc_relocs) << 2); |
| ba761f19 | 9012 | } |
| ba761f19 AM |
9013 | } |
| 9014 | ||
| c5614fa4 AM |
9015 | if (skip == NULL) |
| 9016 | continue; | |
| 9017 | ||
| 9018 | used = bfd_zmalloc (sizeof (*used) * (toc->size + 7) / 8); | |
| 9019 | if (used == NULL) | |
| 9020 | { | |
| 9021 | error_ret: | |
| 9022 | if (local_syms != NULL | |
| 9023 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9024 | free (local_syms); | |
| 9025 | if (sec != NULL | |
| 9026 | && relstart != NULL | |
| 9027 | && elf_section_data (sec)->relocs != relstart) | |
| 9028 | free (relstart); | |
| 425b145b AM |
9029 | if (toc_relocs != NULL |
| 9030 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 9031 | free (toc_relocs); | |
| c5614fa4 AM |
9032 | if (skip != NULL) |
| 9033 | free (skip); | |
| 9034 | return FALSE; | |
| 9035 | } | |
| 9036 | ||
| 30038c59 AM |
9037 | /* Now check all kept sections that might reference the toc. |
| 9038 | Check the toc itself last. */ | |
| 9039 | for (sec = (ibfd->sections == toc && toc->next ? toc->next | |
| 9040 | : ibfd->sections); | |
| c5614fa4 | 9041 | sec != NULL; |
| c5614fa4 | 9042 | sec = (sec == toc ? NULL |
| c5614fa4 | 9043 | : sec->next == NULL ? toc |
| 30038c59 | 9044 | : sec->next == toc && toc->next ? toc->next |
| c5614fa4 AM |
9045 | : sec->next)) |
| 9046 | { | |
| 9047 | int repeat; | |
| 9048 | ||
| 9049 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9050 | || discarded_section (sec) |
| c5614fa4 AM |
9051 | || get_opd_info (sec) |
| 9052 | || (sec->flags & SEC_ALLOC) == 0 | |
| 9053 | || (sec->flags & SEC_DEBUGGING) != 0) | |
| 9054 | continue; | |
| 9055 | ||
| 854b41e7 AM |
9056 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, |
| 9057 | info->keep_memory); | |
| c5614fa4 | 9058 | if (relstart == NULL) |
| 2915c55b JK |
9059 | { |
| 9060 | free (used); | |
| 9061 | goto error_ret; | |
| 9062 | } | |
| c5614fa4 AM |
9063 | |
| 9064 | /* Mark toc entries referenced as used. */ | |
| c5614fa4 | 9065 | do |
| d4f1ee75 AM |
9066 | { |
| 9067 | repeat = 0; | |
| 9068 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9069 | { | |
| 9070 | enum elf_ppc64_reloc_type r_type; | |
| 9071 | unsigned long r_symndx; | |
| 9072 | asection *sym_sec; | |
| 9073 | struct elf_link_hash_entry *h; | |
| 9074 | Elf_Internal_Sym *sym; | |
| 9075 | bfd_vma val; | |
| 9076 | enum {no_check, check_lo, check_ha} insn_check; | |
| 98528052 | 9077 | |
| d4f1ee75 AM |
9078 | r_type = ELF64_R_TYPE (rel->r_info); |
| 9079 | switch (r_type) | |
| 9080 | { | |
| 9081 | default: | |
| 9082 | insn_check = no_check; | |
| 9083 | break; | |
| 98528052 | 9084 | |
| d4f1ee75 AM |
9085 | case R_PPC64_GOT_TLSLD16_HA: |
| 9086 | case R_PPC64_GOT_TLSGD16_HA: | |
| 9087 | case R_PPC64_GOT_TPREL16_HA: | |
| 9088 | case R_PPC64_GOT_DTPREL16_HA: | |
| 9089 | case R_PPC64_GOT16_HA: | |
| 9090 | case R_PPC64_TOC16_HA: | |
| 9091 | insn_check = check_ha; | |
| 9092 | break; | |
| 98528052 | 9093 | |
| d4f1ee75 AM |
9094 | case R_PPC64_GOT_TLSLD16_LO: |
| 9095 | case R_PPC64_GOT_TLSGD16_LO: | |
| 9096 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 9097 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 9098 | case R_PPC64_GOT16_LO: | |
| 9099 | case R_PPC64_GOT16_LO_DS: | |
| 9100 | case R_PPC64_TOC16_LO: | |
| 9101 | case R_PPC64_TOC16_LO_DS: | |
| 9102 | insn_check = check_lo; | |
| 9103 | break; | |
| 9104 | } | |
| 560c8763 | 9105 | |
| d4f1ee75 AM |
9106 | if (insn_check != no_check) |
| 9107 | { | |
| 9108 | bfd_vma off = rel->r_offset & ~3; | |
| 9109 | unsigned char buf[4]; | |
| 9110 | unsigned int insn; | |
| c5614fa4 | 9111 | |
| d4f1ee75 AM |
9112 | if (!bfd_get_section_contents (ibfd, sec, buf, off, 4)) |
| 9113 | { | |
| 9114 | free (used); | |
| 9115 | goto error_ret; | |
| 9116 | } | |
| 9117 | insn = bfd_get_32 (ibfd, buf); | |
| 9118 | if (insn_check == check_lo | |
| 9119 | ? !ok_lo_toc_insn (insn) | |
| 9120 | : ((insn & ((0x3f << 26) | 0x1f << 16)) | |
| 9121 | != ((15u << 26) | (2 << 16)) /* addis rt,2,imm */)) | |
| 9122 | { | |
| 9123 | char str[12]; | |
| 9124 | ||
| 9125 | ppc64_elf_tdata (ibfd)->unexpected_toc_insn = 1; | |
| 9126 | sprintf (str, "%#08x", insn); | |
| 9127 | info->callbacks->einfo | |
| 9128 | (_("%P: %H: toc optimization is not supported for" | |
| 9129 | " %s instruction.\n"), | |
| 9130 | ibfd, sec, rel->r_offset & ~3, str); | |
| 9131 | } | |
| 9132 | } | |
| c5614fa4 | 9133 | |
| d4f1ee75 AM |
9134 | switch (r_type) |
| 9135 | { | |
| 9136 | case R_PPC64_TOC16: | |
| 9137 | case R_PPC64_TOC16_LO: | |
| 9138 | case R_PPC64_TOC16_HI: | |
| 9139 | case R_PPC64_TOC16_HA: | |
| 9140 | case R_PPC64_TOC16_DS: | |
| 9141 | case R_PPC64_TOC16_LO_DS: | |
| 9142 | /* In case we're taking addresses of toc entries. */ | |
| 9143 | case R_PPC64_ADDR64: | |
| 9144 | break; | |
| c5614fa4 | 9145 | |
| d4f1ee75 AM |
9146 | default: |
| 9147 | continue; | |
| 9148 | } | |
| c5614fa4 | 9149 | |
| d4f1ee75 AM |
9150 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 9151 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9152 | r_symndx, ibfd)) | |
| 9153 | { | |
| 9154 | free (used); | |
| 9155 | goto error_ret; | |
| 9156 | } | |
| c5614fa4 | 9157 | |
| d4f1ee75 AM |
9158 | if (sym_sec != toc) |
| 9159 | continue; | |
| c5614fa4 | 9160 | |
| d4f1ee75 AM |
9161 | if (h != NULL) |
| 9162 | val = h->root.u.def.value; | |
| 9163 | else | |
| 9164 | val = sym->st_value; | |
| 9165 | val += rel->r_addend; | |
| ba761f19 | 9166 | |
| d4f1ee75 AM |
9167 | if (val >= toc->size) |
| 9168 | continue; | |
| ba761f19 | 9169 | |
| d4f1ee75 AM |
9170 | if ((skip[val >> 3] & can_optimize) != 0) |
| 9171 | { | |
| 9172 | bfd_vma off; | |
| 9173 | unsigned char opc; | |
| 9174 | ||
| 9175 | switch (r_type) | |
| 9176 | { | |
| 9177 | case R_PPC64_TOC16_HA: | |
| ba761f19 | 9178 | break; |
| ba761f19 | 9179 | |
| d4f1ee75 AM |
9180 | case R_PPC64_TOC16_LO_DS: |
| 9181 | off = rel->r_offset; | |
| 9182 | off += (bfd_big_endian (ibfd) ? -2 : 3); | |
| 9183 | if (!bfd_get_section_contents (ibfd, sec, &opc, | |
| 9184 | off, 1)) | |
| 9185 | { | |
| 9186 | free (used); | |
| 9187 | goto error_ret; | |
| 9188 | } | |
| 9189 | if ((opc & (0x3f << 2)) == (58u << 2)) | |
| 9190 | break; | |
| 9191 | /* Fall thru */ | |
| ba761f19 | 9192 | |
| d4f1ee75 AM |
9193 | default: |
| 9194 | /* Wrong sort of reloc, or not a ld. We may | |
| 9195 | as well clear ref_from_discarded too. */ | |
| 9196 | skip[val >> 3] = 0; | |
| 9197 | } | |
| 9198 | } | |
| 9199 | ||
| 9200 | if (sec != toc) | |
| 9201 | used[val >> 3] = 1; | |
| 9202 | /* For the toc section, we only mark as used if this | |
| 9203 | entry itself isn't unused. */ | |
| 9204 | else if ((used[rel->r_offset >> 3] | |
| 9205 | || !(skip[rel->r_offset >> 3] & ref_from_discarded)) | |
| 9206 | && !used[val >> 3]) | |
| 9207 | { | |
| 9208 | /* Do all the relocs again, to catch reference | |
| 9209 | chains. */ | |
| 9210 | repeat = 1; | |
| 9211 | used[val >> 3] = 1; | |
| 9212 | } | |
| 9213 | } | |
| 9214 | } | |
| c5614fa4 | 9215 | while (repeat); |
| 854b41e7 AM |
9216 | |
| 9217 | if (elf_section_data (sec)->relocs != relstart) | |
| 9218 | free (relstart); | |
| c5614fa4 AM |
9219 | } |
| 9220 | ||
| 9221 | /* Merge the used and skip arrays. Assume that TOC | |
| 9222 | doublewords not appearing as either used or unused belong | |
| 9223 | to to an entry more than one doubleword in size. */ | |
| 9224 | for (drop = skip, keep = used, last = 0, some_unused = 0; | |
| 9225 | drop < skip + (toc->size + 7) / 8; | |
| 9226 | ++drop, ++keep) | |
| 9227 | { | |
| 9228 | if (*keep) | |
| 9229 | { | |
| ba761f19 AM |
9230 | *drop &= ~ref_from_discarded; |
| 9231 | if ((*drop & can_optimize) != 0) | |
| 9232 | some_unused = 1; | |
| c5614fa4 AM |
9233 | last = 0; |
| 9234 | } | |
| b140b010 | 9235 | else if ((*drop & ref_from_discarded) != 0) |
| c5614fa4 AM |
9236 | { |
| 9237 | some_unused = 1; | |
| ba761f19 | 9238 | last = ref_from_discarded; |
| c5614fa4 AM |
9239 | } |
| 9240 | else | |
| 9241 | *drop = last; | |
| 9242 | } | |
| 9243 | ||
| 9244 | free (used); | |
| 9245 | ||
| 9246 | if (some_unused) | |
| 9247 | { | |
| 9248 | bfd_byte *contents, *src; | |
| 9249 | unsigned long off; | |
| d62b3684 | 9250 | Elf_Internal_Sym *sym; |
| ba761f19 | 9251 | bfd_boolean local_toc_syms = FALSE; |
| c5614fa4 AM |
9252 | |
| 9253 | /* Shuffle the toc contents, and at the same time convert the | |
| 9254 | skip array from booleans into offsets. */ | |
| 9255 | if (!bfd_malloc_and_get_section (ibfd, toc, &contents)) | |
| 9256 | goto error_ret; | |
| 9257 | ||
| 9258 | elf_section_data (toc)->this_hdr.contents = contents; | |
| 9259 | ||
| 9260 | for (src = contents, off = 0, drop = skip; | |
| 9261 | src < contents + toc->size; | |
| 9262 | src += 8, ++drop) | |
| 9263 | { | |
| ba761f19 AM |
9264 | if ((*drop & (can_optimize | ref_from_discarded)) != 0) |
| 9265 | off += 8; | |
| c5614fa4 AM |
9266 | else if (off != 0) |
| 9267 | { | |
| 9268 | *drop = off; | |
| 9269 | memcpy (src - off, src, 8); | |
| 9270 | } | |
| 9271 | } | |
| 854b41e7 | 9272 | *drop = off; |
| c5614fa4 AM |
9273 | toc->rawsize = toc->size; |
| 9274 | toc->size = src - contents - off; | |
| 9275 | ||
| ba761f19 AM |
9276 | /* Adjust addends for relocs against the toc section sym, |
| 9277 | and optimize any accesses we can. */ | |
| c5614fa4 AM |
9278 | for (sec = ibfd->sections; sec != NULL; sec = sec->next) |
| 9279 | { | |
| 9280 | if (sec->reloc_count == 0 | |
| dbaa2011 | 9281 | || discarded_section (sec)) |
| c5614fa4 AM |
9282 | continue; |
| 9283 | ||
| 9284 | relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL, | |
| 854b41e7 | 9285 | info->keep_memory); |
| c5614fa4 AM |
9286 | if (relstart == NULL) |
| 9287 | goto error_ret; | |
| 9288 | ||
| 9289 | for (rel = relstart; rel < relstart + sec->reloc_count; ++rel) | |
| 9290 | { | |
| 9291 | enum elf_ppc64_reloc_type r_type; | |
| 9292 | unsigned long r_symndx; | |
| 9293 | asection *sym_sec; | |
| 9294 | struct elf_link_hash_entry *h; | |
| 854b41e7 | 9295 | bfd_vma val; |
| c5614fa4 AM |
9296 | |
| 9297 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 9298 | switch (r_type) | |
| 9299 | { | |
| 9300 | default: | |
| 9301 | continue; | |
| 9302 | ||
| 9303 | case R_PPC64_TOC16: | |
| 9304 | case R_PPC64_TOC16_LO: | |
| 9305 | case R_PPC64_TOC16_HI: | |
| 9306 | case R_PPC64_TOC16_HA: | |
| 9307 | case R_PPC64_TOC16_DS: | |
| 9308 | case R_PPC64_TOC16_LO_DS: | |
| 9309 | case R_PPC64_ADDR64: | |
| 9310 | break; | |
| 9311 | } | |
| 9312 | ||
| 9313 | r_symndx = ELF64_R_SYM (rel->r_info); | |
| 9314 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, | |
| 9315 | r_symndx, ibfd)) | |
| 9316 | goto error_ret; | |
| 9317 | ||
| ba761f19 | 9318 | if (sym_sec != toc) |
| c5614fa4 AM |
9319 | continue; |
| 9320 | ||
| ba761f19 AM |
9321 | if (h != NULL) |
| 9322 | val = h->root.u.def.value; | |
| 9323 | else | |
| 9324 | { | |
| 9325 | val = sym->st_value; | |
| 9326 | if (val != 0) | |
| 9327 | local_toc_syms = TRUE; | |
| 9328 | } | |
| 9329 | ||
| 9330 | val += rel->r_addend; | |
| 854b41e7 AM |
9331 | |
| 9332 | if (val > toc->rawsize) | |
| 9333 | val = toc->rawsize; | |
| ba761f19 AM |
9334 | else if ((skip[val >> 3] & ref_from_discarded) != 0) |
| 9335 | continue; | |
| 9336 | else if ((skip[val >> 3] & can_optimize) != 0) | |
| 9337 | { | |
| 9338 | Elf_Internal_Rela *tocrel | |
| 425b145b | 9339 | = toc_relocs + (skip[val >> 3] >> 2); |
| ba761f19 AM |
9340 | unsigned long tsym = ELF64_R_SYM (tocrel->r_info); |
| 9341 | ||
| 9342 | switch (r_type) | |
| 9343 | { | |
| 9344 | case R_PPC64_TOC16_HA: | |
| 9345 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_TOC16_HA); | |
| 9346 | break; | |
| 9347 | ||
| 9348 | case R_PPC64_TOC16_LO_DS: | |
| 9349 | rel->r_info = ELF64_R_INFO (tsym, R_PPC64_LO_DS_OPT); | |
| 9350 | break; | |
| 9351 | ||
| 9352 | default: | |
| 28942f62 AM |
9353 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 9354 | ppc_howto_init (); | |
| b140b010 | 9355 | info->callbacks->einfo |
| bc30df16 | 9356 | (_("%P: %H: %s references " |
| b140b010 AM |
9357 | "optimized away TOC entry\n"), |
| 9358 | ibfd, sec, rel->r_offset, | |
| 9359 | ppc64_elf_howto_table[r_type]->name); | |
| 9360 | bfd_set_error (bfd_error_bad_value); | |
| 9361 | goto error_ret; | |
| ba761f19 AM |
9362 | } |
| 9363 | rel->r_addend = tocrel->r_addend; | |
| 9364 | elf_section_data (sec)->relocs = relstart; | |
| 9365 | continue; | |
| 9366 | } | |
| 9367 | ||
| 9368 | if (h != NULL || sym->st_value != 0) | |
| 9369 | continue; | |
| 854b41e7 AM |
9370 | |
| 9371 | rel->r_addend -= skip[val >> 3]; | |
| 9372 | elf_section_data (sec)->relocs = relstart; | |
| c5614fa4 | 9373 | } |
| 854b41e7 AM |
9374 | |
| 9375 | if (elf_section_data (sec)->relocs != relstart) | |
| 9376 | free (relstart); | |
| c5614fa4 AM |
9377 | } |
| 9378 | ||
| 9379 | /* We shouldn't have local or global symbols defined in the TOC, | |
| 9380 | but handle them anyway. */ | |
| df22d223 AM |
9381 | if (local_syms != NULL) |
| 9382 | for (sym = local_syms; | |
| 9383 | sym < local_syms + symtab_hdr->sh_info; | |
| 9384 | ++sym) | |
| 9385 | if (sym->st_value != 0 | |
| 9386 | && bfd_section_from_elf_index (ibfd, sym->st_shndx) == toc) | |
| 9387 | { | |
| 9388 | unsigned long i; | |
| 854b41e7 | 9389 | |
| df22d223 AM |
9390 | if (sym->st_value > toc->rawsize) |
| 9391 | i = toc->rawsize >> 3; | |
| 9392 | else | |
| 9393 | i = sym->st_value >> 3; | |
| 854b41e7 | 9394 | |
| df22d223 AM |
9395 | if ((skip[i] & (ref_from_discarded | can_optimize)) != 0) |
| 9396 | { | |
| 9397 | if (local_toc_syms) | |
| 9398 | (*_bfd_error_handler) | |
| 9399 | (_("%s defined on removed toc entry"), | |
| 9400 | bfd_elf_sym_name (ibfd, symtab_hdr, sym, NULL)); | |
| 9401 | do | |
| 9402 | ++i; | |
| 9403 | while ((skip[i] & (ref_from_discarded | can_optimize))); | |
| 9404 | sym->st_value = (bfd_vma) i << 3; | |
| 9405 | } | |
| d62b3684 | 9406 | |
| df22d223 AM |
9407 | sym->st_value -= skip[i]; |
| 9408 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9409 | } | |
| c5614fa4 | 9410 | |
| 854b41e7 | 9411 | /* Adjust any global syms defined in this toc input section. */ |
| c5614fa4 AM |
9412 | if (toc_inf.global_toc_syms) |
| 9413 | { | |
| 9414 | toc_inf.toc = toc; | |
| 9415 | toc_inf.skip = skip; | |
| 9416 | toc_inf.global_toc_syms = FALSE; | |
| 9417 | elf_link_hash_traverse (elf_hash_table (info), adjust_toc_syms, | |
| 9418 | &toc_inf); | |
| 9419 | } | |
| 854b41e7 AM |
9420 | |
| 9421 | if (toc->reloc_count != 0) | |
| 9422 | { | |
| d4730f92 | 9423 | Elf_Internal_Shdr *rel_hdr; |
| 854b41e7 AM |
9424 | Elf_Internal_Rela *wrel; |
| 9425 | bfd_size_type sz; | |
| 9426 | ||
| 854b41e7 | 9427 | /* Remove unused toc relocs, and adjust those we keep. */ |
| 28be611c AM |
9428 | if (toc_relocs == NULL) |
| 9429 | toc_relocs = _bfd_elf_link_read_relocs (ibfd, toc, NULL, NULL, | |
| 9430 | info->keep_memory); | |
| 9431 | if (toc_relocs == NULL) | |
| 9432 | goto error_ret; | |
| 9433 | ||
| 425b145b AM |
9434 | wrel = toc_relocs; |
| 9435 | for (rel = toc_relocs; rel < toc_relocs + toc->reloc_count; ++rel) | |
| ba761f19 AM |
9436 | if ((skip[rel->r_offset >> 3] |
| 9437 | & (ref_from_discarded | can_optimize)) == 0) | |
| 854b41e7 AM |
9438 | { |
| 9439 | wrel->r_offset = rel->r_offset - skip[rel->r_offset >> 3]; | |
| 9440 | wrel->r_info = rel->r_info; | |
| 9441 | wrel->r_addend = rel->r_addend; | |
| 9442 | ++wrel; | |
| 9443 | } | |
| 9444 | else if (!dec_dynrel_count (rel->r_info, toc, info, | |
| 9445 | &local_syms, NULL, NULL)) | |
| 9446 | goto error_ret; | |
| 9447 | ||
| 425b145b AM |
9448 | elf_section_data (toc)->relocs = toc_relocs; |
| 9449 | toc->reloc_count = wrel - toc_relocs; | |
| d4730f92 BS |
9450 | rel_hdr = _bfd_elf_single_rel_hdr (toc); |
| 9451 | sz = rel_hdr->sh_entsize; | |
| 9452 | rel_hdr->sh_size = toc->reloc_count * sz; | |
| 854b41e7 | 9453 | } |
| c5614fa4 | 9454 | } |
| 28be611c AM |
9455 | else if (toc_relocs != NULL |
| 9456 | && elf_section_data (toc)->relocs != toc_relocs) | |
| 425b145b | 9457 | free (toc_relocs); |
| c5614fa4 AM |
9458 | |
| 9459 | if (local_syms != NULL | |
| 9460 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 9461 | { | |
| 9462 | if (!info->keep_memory) | |
| 9463 | free (local_syms); | |
| 9464 | else | |
| 9465 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 9466 | } | |
| 9467 | free (skip); | |
| 9468 | } | |
| 9469 | ||
| 9470 | return TRUE; | |
| 9471 | } | |
| 9472 | ||
| 1bbe0902 AM |
9473 | /* Return true iff input section I references the TOC using |
| 9474 | instructions limited to +/-32k offsets. */ | |
| 9475 | ||
| 9476 | bfd_boolean | |
| 9477 | ppc64_elf_has_small_toc_reloc (asection *i) | |
| 9478 | { | |
| 9479 | return (is_ppc64_elf (i->owner) | |
| 9480 | && ppc64_elf_tdata (i->owner)->has_small_toc_reloc); | |
| 9481 | } | |
| 9482 | ||
| 927be08e AM |
9483 | /* Allocate space for one GOT entry. */ |
| 9484 | ||
| 9485 | static void | |
| 9486 | allocate_got (struct elf_link_hash_entry *h, | |
| 9487 | struct bfd_link_info *info, | |
| 9488 | struct got_entry *gent) | |
| 9489 | { | |
| 9490 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 9491 | bfd_boolean dyn; | |
| 9492 | struct ppc_link_hash_entry *eh = (struct ppc_link_hash_entry *) h; | |
| 9493 | int entsize = (gent->tls_type & eh->tls_mask & (TLS_GD | TLS_LD) | |
| 9494 | ? 16 : 8); | |
| 9495 | int rentsize = (gent->tls_type & eh->tls_mask & TLS_GD | |
| 9496 | ? 2 : 1) * sizeof (Elf64_External_Rela); | |
| 9497 | asection *got = ppc64_elf_tdata (gent->owner)->got; | |
| 9498 | ||
| 9499 | gent->got.offset = got->size; | |
| 9500 | got->size += entsize; | |
| 9501 | ||
| 9502 | dyn = htab->elf.dynamic_sections_created; | |
| 19e08130 | 9503 | if (h->type == STT_GNU_IFUNC) |
| 927be08e | 9504 | { |
| 33e44f2e | 9505 | htab->elf.irelplt->size += rentsize; |
| 19e08130 | 9506 | htab->got_reli_size += rentsize; |
| 927be08e | 9507 | } |
| 0e1862bb | 9508 | else if ((bfd_link_pic (info) |
| 19e08130 AM |
9509 | || WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, 0, h)) |
| 9510 | && (ELF_ST_VISIBILITY (h->other) == STV_DEFAULT | |
| 9511 | || h->root.type != bfd_link_hash_undefweak)) | |
| 927be08e | 9512 | { |
| 19e08130 | 9513 | asection *relgot = ppc64_elf_tdata (gent->owner)->relgot; |
| 927be08e | 9514 | relgot->size += rentsize; |
| 927be08e AM |
9515 | } |
| 9516 | } | |
| 9517 | ||
| 7865406b AM |
9518 | /* This function merges got entries in the same toc group. */ |
| 9519 | ||
| 9520 | static void | |
| 9521 | merge_got_entries (struct got_entry **pent) | |
| 9522 | { | |
| 9523 | struct got_entry *ent, *ent2; | |
| 9524 | ||
| 9525 | for (ent = *pent; ent != NULL; ent = ent->next) | |
| 9526 | if (!ent->is_indirect) | |
| 9527 | for (ent2 = ent->next; ent2 != NULL; ent2 = ent2->next) | |
| 9528 | if (!ent2->is_indirect | |
| 9529 | && ent2->addend == ent->addend | |
| 9530 | && ent2->tls_type == ent->tls_type | |
| 9531 | && elf_gp (ent2->owner) == elf_gp (ent->owner)) | |
| 9532 | { | |
| 9533 | ent2->is_indirect = TRUE; | |
| 9534 | ent2->got.ent = ent; | |
| 9535 | } | |
| 9536 | } | |
| 9537 | ||
| 65f38f15 AM |
9538 | /* Allocate space in .plt, .got and associated reloc sections for |
| 9539 | dynamic relocs. */ | |
| 5bd4f169 | 9540 | |
| b34976b6 | 9541 | static bfd_boolean |
| 4ce794b7 | 9542 | allocate_dynrelocs (struct elf_link_hash_entry *h, void *inf) |
| 5bd4f169 | 9543 | { |
| 65f38f15 AM |
9544 | struct bfd_link_info *info; |
| 9545 | struct ppc_link_hash_table *htab; | |
| 5bd4f169 | 9546 | asection *s; |
| 65f38f15 | 9547 | struct ppc_link_hash_entry *eh; |
| 6061a67d | 9548 | struct elf_dyn_relocs *p; |
| 0b8bcf0d | 9549 | struct got_entry **pgent, *gent; |
| 5bd4f169 | 9550 | |
| e92d460e | 9551 | if (h->root.type == bfd_link_hash_indirect) |
| b34976b6 | 9552 | return TRUE; |
| 5bd4f169 | 9553 | |
| 65f38f15 AM |
9554 | info = (struct bfd_link_info *) inf; |
| 9555 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9556 | if (htab == NULL) |
| 9557 | return FALSE; | |
| 5bd4f169 | 9558 | |
| 951fd09b AM |
9559 | eh = (struct ppc_link_hash_entry *) h; |
| 9560 | /* Run through the TLS GD got entries first if we're changing them | |
| 9561 | to TPREL. */ | |
| e7b938ca | 9562 | if ((eh->tls_mask & TLS_TPRELGD) != 0) |
| 951fd09b AM |
9563 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 9564 | if (gent->got.refcount > 0 | |
| 9565 | && (gent->tls_type & TLS_GD) != 0) | |
| 9566 | { | |
| 9567 | /* This was a GD entry that has been converted to TPREL. If | |
| 9568 | there happens to be a TPREL entry we can use that one. */ | |
| 9569 | struct got_entry *ent; | |
| 9570 | for (ent = h->got.glist; ent != NULL; ent = ent->next) | |
| 9571 | if (ent->got.refcount > 0 | |
| 9572 | && (ent->tls_type & TLS_TPREL) != 0 | |
| e717da7e AM |
9573 | && ent->addend == gent->addend |
| 9574 | && ent->owner == gent->owner) | |
| 951fd09b AM |
9575 | { |
| 9576 | gent->got.refcount = 0; | |
| 9577 | break; | |
| 9578 | } | |
| 9579 | ||
| 9580 | /* If not, then we'll be using our own TPREL entry. */ | |
| 9581 | if (gent->got.refcount != 0) | |
| 9582 | gent->tls_type = TLS_TLS | TLS_TPREL; | |
| 9583 | } | |
| 9584 | ||
| 7865406b AM |
9585 | /* Remove any list entry that won't generate a word in the GOT before |
| 9586 | we call merge_got_entries. Otherwise we risk merging to empty | |
| 9587 | entries. */ | |
| 0b8bcf0d AM |
9588 | pgent = &h->got.glist; |
| 9589 | while ((gent = *pgent) != NULL) | |
| 411e1bfb | 9590 | if (gent->got.refcount > 0) |
| 7865406b AM |
9591 | { |
| 9592 | if ((gent->tls_type & TLS_LD) != 0 | |
| 9593 | && !h->def_dynamic) | |
| 9594 | { | |
| 9595 | ppc64_tlsld_got (gent->owner)->got.refcount += 1; | |
| 9596 | *pgent = gent->next; | |
| 9597 | } | |
| 9598 | else | |
| 9599 | pgent = &gent->next; | |
| 9600 | } | |
| 9601 | else | |
| 9602 | *pgent = gent->next; | |
| 9603 | ||
| 9604 | if (!htab->do_multi_toc) | |
| 9605 | merge_got_entries (&h->got.glist); | |
| 9606 | ||
| 9607 | for (gent = h->got.glist; gent != NULL; gent = gent->next) | |
| 9608 | if (!gent->is_indirect) | |
| 411e1bfb AM |
9609 | { |
| 9610 | /* Make sure this symbol is output as a dynamic symbol. | |
| 951fd09b AM |
9611 | Undefined weak syms won't yet be marked as dynamic, |
| 9612 | nor will all TLS symbols. */ | |
| 411e1bfb | 9613 | if (h->dynindx == -1 |
| b099ab9f | 9614 | && !h->forced_local |
| 25f23106 | 9615 | && h->type != STT_GNU_IFUNC |
| b099ab9f | 9616 | && htab->elf.dynamic_sections_created) |
| 411e1bfb | 9617 | { |
| c152c796 | 9618 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) |
| 411e1bfb AM |
9619 | return FALSE; |
| 9620 | } | |
| 65f38f15 | 9621 | |
| 0c8d6e5c | 9622 | if (!is_ppc64_elf (gent->owner)) |
| 927be08e | 9623 | abort (); |
| 0ffa91dd | 9624 | |
| 927be08e | 9625 | allocate_got (h, info, gent); |
| 411e1bfb | 9626 | } |
| 65f38f15 | 9627 | |
| 57e7d118 AM |
9628 | if (eh->dyn_relocs != NULL |
| 9629 | && (htab->elf.dynamic_sections_created | |
| 9630 | || h->type == STT_GNU_IFUNC)) | |
| 65f38f15 | 9631 | { |
| 57e7d118 AM |
9632 | /* In the shared -Bsymbolic case, discard space allocated for |
| 9633 | dynamic pc-relative relocs against symbols which turn out to | |
| 9634 | be defined in regular objects. For the normal shared case, | |
| 9635 | discard space for relocs that have become local due to symbol | |
| 9636 | visibility changes. */ | |
| 9637 | ||
| 9638 | if (bfd_link_pic (info)) | |
| 65f38f15 | 9639 | { |
| 57e7d118 AM |
9640 | /* Relocs that use pc_count are those that appear on a call |
| 9641 | insn, or certain REL relocs (see must_be_dyn_reloc) that | |
| 9642 | can be generated via assembly. We want calls to | |
| 9643 | protected symbols to resolve directly to the function | |
| 9644 | rather than going via the plt. If people want function | |
| 9645 | pointer comparisons to work as expected then they should | |
| 9646 | avoid writing weird assembly. */ | |
| 9647 | if (SYMBOL_CALLS_LOCAL (info, h)) | |
| 9648 | { | |
| 9649 | struct elf_dyn_relocs **pp; | |
| 9650 | ||
| 9651 | for (pp = &eh->dyn_relocs; (p = *pp) != NULL; ) | |
| 9652 | { | |
| 9653 | p->count -= p->pc_count; | |
| 9654 | p->pc_count = 0; | |
| 9655 | if (p->count == 0) | |
| 9656 | *pp = p->next; | |
| 9657 | else | |
| 9658 | pp = &p->next; | |
| 9659 | } | |
| 9660 | } | |
| 65f38f15 | 9661 | |
| 57e7d118 AM |
9662 | /* Also discard relocs on undefined weak syms with |
| 9663 | non-default visibility. */ | |
| 9664 | if (eh->dyn_relocs != NULL | |
| 9665 | && h->root.type == bfd_link_hash_undefweak) | |
| 5bd4f169 | 9666 | { |
| 57e7d118 AM |
9667 | if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT) |
| 9668 | eh->dyn_relocs = NULL; | |
| 9669 | ||
| 9670 | /* Make sure this symbol is output as a dynamic symbol. | |
| 9671 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9672 | else if (h->dynindx == -1 | |
| 9673 | && !h->forced_local) | |
| 9674 | { | |
| 9675 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9676 | return FALSE; | |
| 9677 | } | |
| 5bd4f169 | 9678 | } |
| 65f38f15 | 9679 | } |
| 57e7d118 | 9680 | else if (h->type == STT_GNU_IFUNC) |
| dfbb6ac9 | 9681 | { |
| 57e7d118 | 9682 | if (!h->non_got_ref) |
| dfbb6ac9 | 9683 | eh->dyn_relocs = NULL; |
| 57e7d118 AM |
9684 | } |
| 9685 | else if (ELIMINATE_COPY_RELOCS) | |
| 9686 | { | |
| 9687 | /* For the non-shared case, discard space for relocs against | |
| 9688 | symbols which turn out to need copy relocs or are not | |
| 9689 | dynamic. */ | |
| dfbb6ac9 | 9690 | |
| 57e7d118 AM |
9691 | if (!h->non_got_ref |
| 9692 | && !h->def_regular) | |
| dfbb6ac9 | 9693 | { |
| 57e7d118 AM |
9694 | /* Make sure this symbol is output as a dynamic symbol. |
| 9695 | Undefined weak syms won't yet be marked as dynamic. */ | |
| 9696 | if (h->dynindx == -1 | |
| 9697 | && !h->forced_local) | |
| 9698 | { | |
| 9699 | if (! bfd_elf_link_record_dynamic_symbol (info, h)) | |
| 9700 | return FALSE; | |
| 9701 | } | |
| 9702 | ||
| 9703 | /* If that succeeded, we know we'll be keeping all the | |
| 9704 | relocs. */ | |
| 9705 | if (h->dynindx != -1) | |
| 9706 | goto keep; | |
| dfbb6ac9 | 9707 | } |
| 57e7d118 AM |
9708 | |
| 9709 | eh->dyn_relocs = NULL; | |
| 9710 | ||
| 9711 | keep: ; | |
| 9712 | } | |
| 9713 | ||
| 9714 | /* Finally, allocate space. */ | |
| 9715 | for (p = eh->dyn_relocs; p != NULL; p = p->next) | |
| 9716 | { | |
| 9717 | asection *sreloc = elf_section_data (p->sec)->sreloc; | |
| 9718 | if (eh->elf.type == STT_GNU_IFUNC) | |
| 9719 | sreloc = htab->elf.irelplt; | |
| 9720 | sreloc->size += p->count * sizeof (Elf64_External_Rela); | |
| dfbb6ac9 | 9721 | } |
| 65f38f15 | 9722 | } |
| 57e7d118 AM |
9723 | |
| 9724 | if ((htab->elf.dynamic_sections_created | |
| 9725 | && h->dynindx != -1 | |
| 9726 | && WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, bfd_link_pic (info), h)) | |
| 9727 | || h->type == STT_GNU_IFUNC) | |
| 65f38f15 | 9728 | { |
| 57e7d118 AM |
9729 | struct plt_entry *pent; |
| 9730 | bfd_boolean doneone = FALSE; | |
| 9731 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9732 | if (pent->plt.refcount > 0) | |
| 9733 | { | |
| 9734 | if (!htab->elf.dynamic_sections_created | |
| 9735 | || h->dynindx == -1) | |
| 9736 | { | |
| 9737 | s = htab->elf.iplt; | |
| 9738 | pent->plt.offset = s->size; | |
| 9739 | s->size += PLT_ENTRY_SIZE (htab); | |
| 9740 | s = htab->elf.irelplt; | |
| 9741 | } | |
| 9742 | else | |
| 9743 | { | |
| 9744 | /* If this is the first .plt entry, make room for the special | |
| 9745 | first entry. */ | |
| 9746 | s = htab->elf.splt; | |
| 9747 | if (s->size == 0) | |
| 9748 | s->size += PLT_INITIAL_ENTRY_SIZE (htab); | |
| 65f38f15 | 9749 | |
| 57e7d118 | 9750 | pent->plt.offset = s->size; |
| 65f38f15 | 9751 | |
| 57e7d118 AM |
9752 | /* Make room for this entry. */ |
| 9753 | s->size += PLT_ENTRY_SIZE (htab); | |
| 65f38f15 | 9754 | |
| 57e7d118 AM |
9755 | /* Make room for the .glink code. */ |
| 9756 | s = htab->glink; | |
| 9757 | if (s->size == 0) | |
| 9758 | s->size += GLINK_CALL_STUB_SIZE; | |
| 9759 | if (htab->opd_abi) | |
| 9760 | { | |
| 9761 | /* We need bigger stubs past index 32767. */ | |
| 9762 | if (s->size >= GLINK_CALL_STUB_SIZE + 32768*2*4) | |
| 9763 | s->size += 4; | |
| 9764 | s->size += 2*4; | |
| 9765 | } | |
| 9766 | else | |
| 9767 | s->size += 4; | |
| 65f38f15 | 9768 | |
| 57e7d118 AM |
9769 | /* We also need to make an entry in the .rela.plt section. */ |
| 9770 | s = htab->elf.srelplt; | |
| 9771 | } | |
| 9772 | s->size += sizeof (Elf64_External_Rela); | |
| 9773 | doneone = TRUE; | |
| 9774 | } | |
| 9775 | else | |
| 9776 | pent->plt.offset = (bfd_vma) -1; | |
| 9777 | if (!doneone) | |
| 9778 | { | |
| 9779 | h->plt.plist = NULL; | |
| 9780 | h->needs_plt = 0; | |
| 9781 | } | |
| 65f38f15 | 9782 | } |
| 57e7d118 | 9783 | else |
| 65f38f15 | 9784 | { |
| 57e7d118 AM |
9785 | h->plt.plist = NULL; |
| 9786 | h->needs_plt = 0; | |
| 65f38f15 AM |
9787 | } |
| 9788 | ||
| b34976b6 | 9789 | return TRUE; |
| 65f38f15 AM |
9790 | } |
| 9791 | ||
| a345bc8d AM |
9792 | /* Called via elf_link_hash_traverse from ppc64_elf_size_dynamic_sections |
| 9793 | to set up space for global entry stubs. These are put in glink, | |
| 9794 | after the branch table. */ | |
| 65f38f15 | 9795 | |
| b34976b6 | 9796 | static bfd_boolean |
| a345bc8d | 9797 | size_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) |
| 65f38f15 | 9798 | { |
| a345bc8d AM |
9799 | struct bfd_link_info *info; |
| 9800 | struct ppc_link_hash_table *htab; | |
| 9801 | struct plt_entry *pent; | |
| 9802 | asection *s; | |
| 65f38f15 | 9803 | |
| a345bc8d AM |
9804 | if (h->root.type == bfd_link_hash_indirect) |
| 9805 | return TRUE; | |
| 65f38f15 | 9806 | |
| a345bc8d AM |
9807 | if (!h->pointer_equality_needed) |
| 9808 | return TRUE; | |
| 65f38f15 | 9809 | |
| a345bc8d AM |
9810 | if (h->def_regular) |
| 9811 | return TRUE; | |
| 65f38f15 | 9812 | |
| a345bc8d AM |
9813 | info = inf; |
| 9814 | htab = ppc_hash_table (info); | |
| 9815 | if (htab == NULL) | |
| 9816 | return FALSE; | |
| 9817 | ||
| 9818 | s = htab->glink; | |
| 9819 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 9820 | if (pent->plt.offset != (bfd_vma) -1 | |
| 9821 | && pent->addend == 0) | |
| 9822 | { | |
| afe397ea AM |
9823 | /* For ELFv2, if this symbol is not defined in a regular file |
| 9824 | and we are not generating a shared library or pie, then we | |
| 9825 | need to define the symbol in the executable on a call stub. | |
| 9826 | This is to avoid text relocations. */ | |
| a345bc8d | 9827 | s->size = (s->size + 15) & -16; |
| afe397ea AM |
9828 | h->root.u.def.section = s; |
| 9829 | h->root.u.def.value = s->size; | |
| a345bc8d AM |
9830 | s->size += 16; |
| 9831 | break; | |
| 9832 | } | |
| 9833 | return TRUE; | |
| 9834 | } | |
| 9835 | ||
| 9836 | /* Set DF_TEXTREL if we find any dynamic relocs that apply to | |
| 9837 | read-only sections. */ | |
| 9838 | ||
| 9839 | static bfd_boolean | |
| 9840 | maybe_set_textrel (struct elf_link_hash_entry *h, void *info) | |
| 9841 | { | |
| 9842 | if (h->root.type == bfd_link_hash_indirect) | |
| 9843 | return TRUE; | |
| 9844 | ||
| 9845 | if (readonly_dynrelocs (h)) | |
| 9846 | { | |
| 9847 | ((struct bfd_link_info *) info)->flags |= DF_TEXTREL; | |
| 9848 | ||
| 9849 | /* Not an error, just cut short the traversal. */ | |
| 9850 | return FALSE; | |
| 65f38f15 | 9851 | } |
| b34976b6 | 9852 | return TRUE; |
| 65f38f15 AM |
9853 | } |
| 9854 | ||
| 9855 | /* Set the sizes of the dynamic sections. */ | |
| 9856 | ||
| b34976b6 | 9857 | static bfd_boolean |
| ee67d69a | 9858 | ppc64_elf_size_dynamic_sections (bfd *output_bfd, |
| 4ce794b7 | 9859 | struct bfd_link_info *info) |
| 65f38f15 AM |
9860 | { |
| 9861 | struct ppc_link_hash_table *htab; | |
| 9862 | bfd *dynobj; | |
| 9863 | asection *s; | |
| b34976b6 | 9864 | bfd_boolean relocs; |
| 65f38f15 | 9865 | bfd *ibfd; |
| 7865406b | 9866 | struct got_entry *first_tlsld; |
| 65f38f15 AM |
9867 | |
| 9868 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
9869 | if (htab == NULL) |
| 9870 | return FALSE; | |
| 9871 | ||
| 65f38f15 AM |
9872 | dynobj = htab->elf.dynobj; |
| 9873 | if (dynobj == NULL) | |
| 9874 | abort (); | |
| 9875 | ||
| 9876 | if (htab->elf.dynamic_sections_created) | |
| 9877 | { | |
| 9878 | /* Set the contents of the .interp section to the interpreter. */ | |
| 9b8b325a | 9879 | if (bfd_link_executable (info) && !info->nointerp) |
| 65f38f15 | 9880 | { |
| 3d4d4302 | 9881 | s = bfd_get_linker_section (dynobj, ".interp"); |
| 65f38f15 AM |
9882 | if (s == NULL) |
| 9883 | abort (); | |
| eea6121a | 9884 | s->size = sizeof ELF_DYNAMIC_INTERPRETER; |
| 65f38f15 AM |
9885 | s->contents = (unsigned char *) ELF_DYNAMIC_INTERPRETER; |
| 9886 | } | |
| 9887 | } | |
| 9888 | ||
| 9889 | /* Set up .got offsets for local syms, and space for local dynamic | |
| 9890 | relocs. */ | |
| c72f2fb2 | 9891 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 65f38f15 | 9892 | { |
| 411e1bfb AM |
9893 | struct got_entry **lgot_ents; |
| 9894 | struct got_entry **end_lgot_ents; | |
| e054468f AM |
9895 | struct plt_entry **local_plt; |
| 9896 | struct plt_entry **end_local_plt; | |
| f961d9dd | 9897 | unsigned char *lgot_masks; |
| 65f38f15 AM |
9898 | bfd_size_type locsymcount; |
| 9899 | Elf_Internal_Shdr *symtab_hdr; | |
| 65f38f15 | 9900 | |
| 0c8d6e5c | 9901 | if (!is_ppc64_elf (ibfd)) |
| 65f38f15 AM |
9902 | continue; |
| 9903 | ||
| 9904 | for (s = ibfd->sections; s != NULL; s = s->next) | |
| 9905 | { | |
| 19e08130 | 9906 | struct ppc_dyn_relocs *p; |
| 65f38f15 | 9907 | |
| 6edfbbad | 9908 | for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next) |
| 65f38f15 | 9909 | { |
| ec338859 AM |
9910 | if (!bfd_is_abs_section (p->sec) |
| 9911 | && bfd_is_abs_section (p->sec->output_section)) | |
| 9912 | { | |
| 9913 | /* Input section has been discarded, either because | |
| 9914 | it is a copy of a linkonce section or due to | |
| 9915 | linker script /DISCARD/, so we'll be discarding | |
| 9916 | the relocs too. */ | |
| 9917 | } | |
| 248866a8 | 9918 | else if (p->count != 0) |
| ec338859 | 9919 | { |
| 19e08130 AM |
9920 | asection *srel = elf_section_data (p->sec)->sreloc; |
| 9921 | if (p->ifunc) | |
| 33e44f2e | 9922 | srel = htab->elf.irelplt; |
| eea6121a | 9923 | srel->size += p->count * sizeof (Elf64_External_Rela); |
| 248866a8 AM |
9924 | if ((p->sec->output_section->flags & SEC_READONLY) != 0) |
| 9925 | info->flags |= DF_TEXTREL; | |
| ec338859 | 9926 | } |
| 65f38f15 AM |
9927 | } |
| 9928 | } | |
| 9929 | ||
| 411e1bfb AM |
9930 | lgot_ents = elf_local_got_ents (ibfd); |
| 9931 | if (!lgot_ents) | |
| 65f38f15 AM |
9932 | continue; |
| 9933 | ||
| 0ffa91dd | 9934 | symtab_hdr = &elf_symtab_hdr (ibfd); |
| 65f38f15 | 9935 | locsymcount = symtab_hdr->sh_info; |
| 411e1bfb | 9936 | end_lgot_ents = lgot_ents + locsymcount; |
| e054468f AM |
9937 | local_plt = (struct plt_entry **) end_lgot_ents; |
| 9938 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 9939 | lgot_masks = (unsigned char *) end_local_plt; |
| e717da7e | 9940 | s = ppc64_elf_tdata (ibfd)->got; |
| e7b938ca | 9941 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 65f38f15 | 9942 | { |
| 0b8bcf0d | 9943 | struct got_entry **pent, *ent; |
| 411e1bfb | 9944 | |
| 0b8bcf0d AM |
9945 | pent = lgot_ents; |
| 9946 | while ((ent = *pent) != NULL) | |
| 411e1bfb AM |
9947 | if (ent->got.refcount > 0) |
| 9948 | { | |
| e7b938ca | 9949 | if ((ent->tls_type & *lgot_masks & TLS_LD) != 0) |
| 411e1bfb | 9950 | { |
| 927be08e | 9951 | ppc64_tlsld_got (ibfd)->got.refcount += 1; |
| 0b8bcf0d | 9952 | *pent = ent->next; |
| 411e1bfb AM |
9953 | } |
| 9954 | else | |
| 9955 | { | |
| 19e08130 AM |
9956 | unsigned int ent_size = 8; |
| 9957 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 9958 | ||
| eea6121a | 9959 | ent->got.offset = s->size; |
| e7b938ca | 9960 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) |
| 927be08e | 9961 | { |
| 19e08130 AM |
9962 | ent_size *= 2; |
| 9963 | rel_size *= 2; | |
| 9964 | } | |
| 9965 | s->size += ent_size; | |
| 9966 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 9967 | { | |
| 33e44f2e | 9968 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
9969 | htab->got_reli_size += rel_size; |
| 9970 | } | |
| 0e1862bb | 9971 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
9972 | { |
| 9973 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 9974 | srel->size += rel_size; | |
| 927be08e | 9975 | } |
| 0b8bcf0d | 9976 | pent = &ent->next; |
| 411e1bfb AM |
9977 | } |
| 9978 | } | |
| 9979 | else | |
| 0b8bcf0d | 9980 | *pent = ent->next; |
| 65f38f15 | 9981 | } |
| e054468f AM |
9982 | |
| 9983 | /* Allocate space for calls to local STT_GNU_IFUNC syms in .iplt. */ | |
| 9984 | for (; local_plt < end_local_plt; ++local_plt) | |
| 9985 | { | |
| 9986 | struct plt_entry *ent; | |
| 9987 | ||
| 9988 | for (ent = *local_plt; ent != NULL; ent = ent->next) | |
| 9989 | if (ent->plt.refcount > 0) | |
| 9990 | { | |
| 33e44f2e | 9991 | s = htab->elf.iplt; |
| e054468f | 9992 | ent->plt.offset = s->size; |
| b9e5796b | 9993 | s->size += PLT_ENTRY_SIZE (htab); |
| e054468f | 9994 | |
| 33e44f2e | 9995 | htab->elf.irelplt->size += sizeof (Elf64_External_Rela); |
| e054468f AM |
9996 | } |
| 9997 | else | |
| 9998 | ent->plt.offset = (bfd_vma) -1; | |
| 9999 | } | |
| 65f38f15 AM |
10000 | } |
| 10001 | ||
| 10002 | /* Allocate global sym .plt and .got entries, and space for global | |
| 10003 | sym dynamic relocs. */ | |
| 4ce794b7 | 10004 | elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, info); |
| a345bc8d AM |
10005 | /* Stash the end of glink branch table. */ |
| 10006 | if (htab->glink != NULL) | |
| 10007 | htab->glink->rawsize = htab->glink->size; | |
| 10008 | ||
| 0e1862bb | 10009 | if (!htab->opd_abi && !bfd_link_pic (info)) |
| a345bc8d | 10010 | elf_link_hash_traverse (&htab->elf, size_global_entry_stubs, info); |
| 65f38f15 | 10011 | |
| 7865406b | 10012 | first_tlsld = NULL; |
| c72f2fb2 | 10013 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 102890f0 | 10014 | { |
| 7865406b AM |
10015 | struct got_entry *ent; |
| 10016 | ||
| 0c8d6e5c | 10017 | if (!is_ppc64_elf (ibfd)) |
| 102890f0 AM |
10018 | continue; |
| 10019 | ||
| 7865406b AM |
10020 | ent = ppc64_tlsld_got (ibfd); |
| 10021 | if (ent->got.refcount > 0) | |
| 102890f0 | 10022 | { |
| 7865406b | 10023 | if (!htab->do_multi_toc && first_tlsld != NULL) |
| 102890f0 | 10024 | { |
| 7865406b AM |
10025 | ent->is_indirect = TRUE; |
| 10026 | ent->got.ent = first_tlsld; | |
| 10027 | } | |
| 10028 | else | |
| 10029 | { | |
| 10030 | if (first_tlsld == NULL) | |
| 10031 | first_tlsld = ent; | |
| 10032 | s = ppc64_elf_tdata (ibfd)->got; | |
| 10033 | ent->got.offset = s->size; | |
| 10034 | ent->owner = ibfd; | |
| 10035 | s->size += 16; | |
| 0e1862bb | 10036 | if (bfd_link_pic (info)) |
| 7865406b AM |
10037 | { |
| 10038 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 10039 | srel->size += sizeof (Elf64_External_Rela); | |
| 10040 | } | |
| 102890f0 AM |
10041 | } |
| 10042 | } | |
| 10043 | else | |
| 7865406b | 10044 | ent->got.offset = (bfd_vma) -1; |
| 102890f0 AM |
10045 | } |
| 10046 | ||
| 65f38f15 AM |
10047 | /* We now have determined the sizes of the various dynamic sections. |
| 10048 | Allocate memory for them. */ | |
| b34976b6 | 10049 | relocs = FALSE; |
| 65f38f15 AM |
10050 | for (s = dynobj->sections; s != NULL; s = s->next) |
| 10051 | { | |
| 10052 | if ((s->flags & SEC_LINKER_CREATED) == 0) | |
| 10053 | continue; | |
| 10054 | ||
| 4ce794b7 | 10055 | if (s == htab->brlt || s == htab->relbrlt) |
| 721956f4 AM |
10056 | /* These haven't been allocated yet; don't strip. */ |
| 10057 | continue; | |
| 33e44f2e AM |
10058 | else if (s == htab->elf.sgot |
| 10059 | || s == htab->elf.splt | |
| 10060 | || s == htab->elf.iplt | |
| c456f082 AM |
10061 | || s == htab->glink |
| 10062 | || s == htab->dynbss) | |
| 65f38f15 AM |
10063 | { |
| 10064 | /* Strip this section if we don't need it; see the | |
| 10065 | comment below. */ | |
| 5bd4f169 | 10066 | } |
| 58d180e8 AM |
10067 | else if (s == htab->glink_eh_frame) |
| 10068 | { | |
| 10069 | if (!bfd_is_abs_section (s->output_section)) | |
| 10070 | /* Not sized yet. */ | |
| 10071 | continue; | |
| 10072 | } | |
| 70cc837d | 10073 | else if (CONST_STRNEQ (s->name, ".rela")) |
| 5bd4f169 | 10074 | { |
| c456f082 | 10075 | if (s->size != 0) |
| 5bd4f169 | 10076 | { |
| 33e44f2e | 10077 | if (s != htab->elf.srelplt) |
| b34976b6 | 10078 | relocs = TRUE; |
| 5bd4f169 AM |
10079 | |
| 10080 | /* We use the reloc_count field as a counter if we need | |
| 10081 | to copy relocs into the output file. */ | |
| 10082 | s->reloc_count = 0; | |
| 10083 | } | |
| 10084 | } | |
| 65f38f15 | 10085 | else |
| 5bd4f169 AM |
10086 | { |
| 10087 | /* It's not one of our sections, so don't allocate space. */ | |
| 10088 | continue; | |
| 10089 | } | |
| 10090 | ||
| eea6121a | 10091 | if (s->size == 0) |
| 5bd4f169 | 10092 | { |
| c456f082 AM |
10093 | /* If we don't need this section, strip it from the |
| 10094 | output file. This is mostly to handle .rela.bss and | |
| 10095 | .rela.plt. We must create both sections in | |
| 10096 | create_dynamic_sections, because they must be created | |
| 10097 | before the linker maps input sections to output | |
| 10098 | sections. The linker does that before | |
| 10099 | adjust_dynamic_symbol is called, and it is that | |
| 10100 | function which decides whether anything needs to go | |
| 10101 | into these sections. */ | |
| 8423293d | 10102 | s->flags |= SEC_EXCLUDE; |
| 5bd4f169 AM |
10103 | continue; |
| 10104 | } | |
| 10105 | ||
| c456f082 | 10106 | if ((s->flags & SEC_HAS_CONTENTS) == 0) |
| 5f333394 AM |
10107 | continue; |
| 10108 | ||
| 65f38f15 AM |
10109 | /* Allocate memory for the section contents. We use bfd_zalloc |
| 10110 | here in case unused entries are not reclaimed before the | |
| 10111 | section's contents are written out. This should not happen, | |
| 411e1bfb AM |
10112 | but this way if it does we get a R_PPC64_NONE reloc in .rela |
| 10113 | sections instead of garbage. | |
| 10114 | We also rely on the section contents being zero when writing | |
| 10115 | the GOT. */ | |
| eea6121a | 10116 | s->contents = bfd_zalloc (dynobj, s->size); |
| 65f38f15 | 10117 | if (s->contents == NULL) |
| b34976b6 | 10118 | return FALSE; |
| 5bd4f169 AM |
10119 | } |
| 10120 | ||
| c72f2fb2 | 10121 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| e717da7e | 10122 | { |
| 0c8d6e5c | 10123 | if (!is_ppc64_elf (ibfd)) |
| 7b53ace3 AM |
10124 | continue; |
| 10125 | ||
| e717da7e | 10126 | s = ppc64_elf_tdata (ibfd)->got; |
| 33e44f2e | 10127 | if (s != NULL && s != htab->elf.sgot) |
| e717da7e | 10128 | { |
| eea6121a | 10129 | if (s->size == 0) |
| 8423293d | 10130 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10131 | else |
| 10132 | { | |
| eea6121a | 10133 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10134 | if (s->contents == NULL) |
| 10135 | return FALSE; | |
| 10136 | } | |
| 10137 | } | |
| 10138 | s = ppc64_elf_tdata (ibfd)->relgot; | |
| 10139 | if (s != NULL) | |
| 10140 | { | |
| eea6121a | 10141 | if (s->size == 0) |
| 8423293d | 10142 | s->flags |= SEC_EXCLUDE; |
| e717da7e AM |
10143 | else |
| 10144 | { | |
| eea6121a | 10145 | s->contents = bfd_zalloc (ibfd, s->size); |
| e717da7e AM |
10146 | if (s->contents == NULL) |
| 10147 | return FALSE; | |
| 10148 | relocs = TRUE; | |
| 10149 | s->reloc_count = 0; | |
| 10150 | } | |
| 10151 | } | |
| 10152 | } | |
| 10153 | ||
| e86ce104 | 10154 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 10155 | { |
| e8910a83 AM |
10156 | bfd_boolean tls_opt; |
| 10157 | ||
| 5bd4f169 AM |
10158 | /* Add some entries to the .dynamic section. We fill in the |
| 10159 | values later, in ppc64_elf_finish_dynamic_sections, but we | |
| 10160 | must add the entries now so that we get the correct size for | |
| 10161 | the .dynamic section. The DT_DEBUG entry is filled in by the | |
| 10162 | dynamic linker and used by the debugger. */ | |
| dc810e39 | 10163 | #define add_dynamic_entry(TAG, VAL) \ |
| 5a580b3a | 10164 | _bfd_elf_add_dynamic_entry (info, TAG, VAL) |
| dc810e39 | 10165 | |
| 0e1862bb | 10166 | if (bfd_link_executable (info)) |
| 5bd4f169 | 10167 | { |
| dc810e39 | 10168 | if (!add_dynamic_entry (DT_DEBUG, 0)) |
| b34976b6 | 10169 | return FALSE; |
| 5bd4f169 AM |
10170 | } |
| 10171 | ||
| 33e44f2e | 10172 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5bd4f169 | 10173 | { |
| dc810e39 AM |
10174 | if (!add_dynamic_entry (DT_PLTGOT, 0) |
| 10175 | || !add_dynamic_entry (DT_PLTRELSZ, 0) | |
| 10176 | || !add_dynamic_entry (DT_PLTREL, DT_RELA) | |
| 5d1634d7 AM |
10177 | || !add_dynamic_entry (DT_JMPREL, 0) |
| 10178 | || !add_dynamic_entry (DT_PPC64_GLINK, 0)) | |
| b34976b6 | 10179 | return FALSE; |
| 5bd4f169 AM |
10180 | } |
| 10181 | ||
| ee67d69a | 10182 | if (NO_OPD_RELOCS && abiversion (output_bfd) <= 1) |
| 19397422 AM |
10183 | { |
| 10184 | if (!add_dynamic_entry (DT_PPC64_OPD, 0) | |
| 10185 | || !add_dynamic_entry (DT_PPC64_OPDSZ, 0)) | |
| b34976b6 | 10186 | return FALSE; |
| 19397422 AM |
10187 | } |
| 10188 | ||
| 7c9cf415 | 10189 | tls_opt = (htab->params->tls_get_addr_opt |
| e8910a83 AM |
10190 | && htab->tls_get_addr_fd != NULL |
| 10191 | && htab->tls_get_addr_fd->elf.plt.plist != NULL); | |
| 10192 | if (tls_opt || !htab->opd_abi) | |
| 10193 | { | |
| 10194 | if (!add_dynamic_entry (DT_PPC64_OPT, tls_opt ? PPC64_OPT_TLS : 0)) | |
| 10195 | return FALSE; | |
| 10196 | } | |
| a7f2871e | 10197 | |
| 5bd4f169 AM |
10198 | if (relocs) |
| 10199 | { | |
| dc810e39 AM |
10200 | if (!add_dynamic_entry (DT_RELA, 0) |
| 10201 | || !add_dynamic_entry (DT_RELASZ, 0) | |
| 10202 | || !add_dynamic_entry (DT_RELAENT, sizeof (Elf64_External_Rela))) | |
| b34976b6 | 10203 | return FALSE; |
| 5bd4f169 | 10204 | |
| 65f38f15 AM |
10205 | /* If any dynamic relocs apply to a read-only section, |
| 10206 | then we need a DT_TEXTREL entry. */ | |
| 248866a8 | 10207 | if ((info->flags & DF_TEXTREL) == 0) |
| a345bc8d | 10208 | elf_link_hash_traverse (&htab->elf, maybe_set_textrel, info); |
| 5bd4f169 | 10209 | |
| 65f38f15 | 10210 | if ((info->flags & DF_TEXTREL) != 0) |
| 5bd4f169 | 10211 | { |
| 65f38f15 | 10212 | if (!add_dynamic_entry (DT_TEXTREL, 0)) |
| b34976b6 | 10213 | return FALSE; |
| 5bd4f169 | 10214 | } |
| 5bd4f169 | 10215 | } |
| 5bd4f169 | 10216 | } |
| 65f38f15 | 10217 | #undef add_dynamic_entry |
| 5bd4f169 | 10218 | |
| b34976b6 | 10219 | return TRUE; |
| 5bd4f169 AM |
10220 | } |
| 10221 | ||
| a345bc8d AM |
10222 | /* Return TRUE if symbol should be hashed in the `.gnu.hash' section. */ |
| 10223 | ||
| 10224 | static bfd_boolean | |
| 10225 | ppc64_elf_hash_symbol (struct elf_link_hash_entry *h) | |
| 10226 | { | |
| 10227 | if (h->plt.plist != NULL | |
| 10228 | && !h->def_regular | |
| 10229 | && !h->pointer_equality_needed) | |
| 10230 | return FALSE; | |
| 10231 | ||
| 10232 | return _bfd_elf_hash_symbol (h); | |
| 10233 | } | |
| 10234 | ||
| 721956f4 | 10235 | /* Determine the type of stub needed, if any, for a call. */ |
| 5bd4f169 | 10236 | |
| 4ce794b7 AM |
10237 | static inline enum ppc_stub_type |
| 10238 | ppc_type_of_stub (asection *input_sec, | |
| 10239 | const Elf_Internal_Rela *rel, | |
| 10240 | struct ppc_link_hash_entry **hash, | |
| e054468f | 10241 | struct plt_entry **plt_ent, |
| 6911b7dc AM |
10242 | bfd_vma destination, |
| 10243 | unsigned long local_off) | |
| 5bd4f169 | 10244 | { |
| 721956f4 AM |
10245 | struct ppc_link_hash_entry *h = *hash; |
| 10246 | bfd_vma location; | |
| 10247 | bfd_vma branch_offset; | |
| 10248 | bfd_vma max_branch_offset; | |
| 4ce794b7 | 10249 | enum elf_ppc64_reloc_type r_type; |
| 5bd4f169 | 10250 | |
| 721956f4 AM |
10251 | if (h != NULL) |
| 10252 | { | |
| e054468f | 10253 | struct plt_entry *ent; |
| 7fe2b9a6 | 10254 | struct ppc_link_hash_entry *fdh = h; |
| b31867b6 AM |
10255 | if (h->oh != NULL |
| 10256 | && h->oh->is_func_descriptor) | |
| 7b8f6675 AM |
10257 | { |
| 10258 | fdh = ppc_follow_link (h->oh); | |
| 10259 | *hash = fdh; | |
| 10260 | } | |
| 8387904d | 10261 | |
| e054468f AM |
10262 | for (ent = fdh->elf.plt.plist; ent != NULL; ent = ent->next) |
| 10263 | if (ent->addend == rel->r_addend | |
| 10264 | && ent->plt.offset != (bfd_vma) -1) | |
| 10265 | { | |
| e054468f AM |
10266 | *plt_ent = ent; |
| 10267 | return ppc_stub_plt_call; | |
| 10268 | } | |
| 5bd4f169 | 10269 | |
| 7fe2b9a6 AM |
10270 | /* Here, we know we don't have a plt entry. If we don't have a |
| 10271 | either a defined function descriptor or a defined entry symbol | |
| 10272 | in a regular object file, then it is pointless trying to make | |
| 10273 | any other type of stub. */ | |
| 854b41e7 AM |
10274 | if (!is_static_defined (&fdh->elf) |
| 10275 | && !is_static_defined (&h->elf)) | |
| 721956f4 | 10276 | return ppc_stub_none; |
| 5d1634d7 | 10277 | } |
| e054468f AM |
10278 | else if (elf_local_got_ents (input_sec->owner) != NULL) |
| 10279 | { | |
| 10280 | Elf_Internal_Shdr *symtab_hdr = &elf_symtab_hdr (input_sec->owner); | |
| 10281 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 10282 | elf_local_got_ents (input_sec->owner) + symtab_hdr->sh_info; | |
| 10283 | unsigned long r_symndx = ELF64_R_SYM (rel->r_info); | |
| 10284 | ||
| 10285 | if (local_plt[r_symndx] != NULL) | |
| 10286 | { | |
| 10287 | struct plt_entry *ent; | |
| 10288 | ||
| 10289 | for (ent = local_plt[r_symndx]; ent != NULL; ent = ent->next) | |
| 10290 | if (ent->addend == rel->r_addend | |
| 10291 | && ent->plt.offset != (bfd_vma) -1) | |
| 10292 | { | |
| 10293 | *plt_ent = ent; | |
| 10294 | return ppc_stub_plt_call; | |
| 10295 | } | |
| 10296 | } | |
| 10297 | } | |
| 5d1634d7 | 10298 | |
| 721956f4 AM |
10299 | /* Determine where the call point is. */ |
| 10300 | location = (input_sec->output_offset | |
| 10301 | + input_sec->output_section->vma | |
| 10302 | + rel->r_offset); | |
| 5d1634d7 | 10303 | |
| 721956f4 AM |
10304 | branch_offset = destination - location; |
| 10305 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 5d1634d7 | 10306 | |
| 721956f4 AM |
10307 | /* Determine if a long branch stub is needed. */ |
| 10308 | max_branch_offset = 1 << 25; | |
| 4ce794b7 | 10309 | if (r_type != R_PPC64_REL24) |
| 721956f4 | 10310 | max_branch_offset = 1 << 15; |
| 5d1634d7 | 10311 | |
| 6911b7dc | 10312 | if (branch_offset + max_branch_offset >= 2 * max_branch_offset - local_off) |
| 721956f4 AM |
10313 | /* We need a stub. Figure out whether a long_branch or plt_branch |
| 10314 | is needed later. */ | |
| 10315 | return ppc_stub_long_branch; | |
| 5d1634d7 | 10316 | |
| 721956f4 | 10317 | return ppc_stub_none; |
| 5d1634d7 AM |
10318 | } |
| 10319 | ||
| 794e51c0 AM |
10320 | /* With power7 weakly ordered memory model, it is possible for ld.so |
| 10321 | to update a plt entry in one thread and have another thread see a | |
| 10322 | stale zero toc entry. To avoid this we need some sort of acquire | |
| 10323 | barrier in the call stub. One solution is to make the load of the | |
| 10324 | toc word seem to appear to depend on the load of the function entry | |
| 10325 | word. Another solution is to test for r2 being zero, and branch to | |
| 10326 | the appropriate glink entry if so. | |
| 10327 | ||
| 10328 | . fake dep barrier compare | |
| 71a39c98 AM |
10329 | . ld 12,xxx(2) ld 12,xxx(2) |
| 10330 | . mtctr 12 mtctr 12 | |
| 10331 | . xor 11,12,12 ld 2,xxx+8(2) | |
| 794e51c0 AM |
10332 | . add 2,2,11 cmpldi 2,0 |
| 10333 | . ld 2,xxx+8(2) bnectr+ | |
| 10334 | . bctr b <glink_entry> | |
| 10335 | ||
| 10336 | The solution involving the compare turns out to be faster, so | |
| 10337 | that's what we use unless the branch won't reach. */ | |
| 10338 | ||
| 10339 | #define ALWAYS_USE_FAKE_DEP 0 | |
| 10340 | #define ALWAYS_EMIT_R2SAVE 0 | |
| 5d1634d7 | 10341 | |
| 5d1634d7 AM |
10342 | #define PPC_LO(v) ((v) & 0xffff) |
| 10343 | #define PPC_HI(v) (((v) >> 16) & 0xffff) | |
| 10344 | #define PPC_HA(v) PPC_HI ((v) + 0x8000) | |
| 10345 | ||
| 794e51c0 AM |
10346 | static inline unsigned int |
| 10347 | plt_stub_size (struct ppc_link_hash_table *htab, | |
| 10348 | struct ppc_stub_hash_entry *stub_entry, | |
| 10349 | bfd_vma off) | |
| 10350 | { | |
| b9e5796b AM |
10351 | unsigned size = 12; |
| 10352 | ||
| 10353 | if (ALWAYS_EMIT_R2SAVE | |
| 10354 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10355 | size += 4; | |
| 10356 | if (PPC_HA (off) != 0) | |
| 794e51c0 | 10357 | size += 4; |
| b9e5796b AM |
10358 | if (htab->opd_abi) |
| 10359 | { | |
| 10360 | size += 4; | |
| e7d1c40c | 10361 | if (htab->params->plt_static_chain) |
| b9e5796b | 10362 | size += 4; |
| bd4d2eaa AM |
10363 | if (htab->params->plt_thread_safe |
| 10364 | && htab->elf.dynamic_sections_created | |
| 10365 | && stub_entry->h != NULL | |
| 10366 | && stub_entry->h->elf.dynindx != -1) | |
| b9e5796b | 10367 | size += 8; |
| e7d1c40c | 10368 | if (PPC_HA (off + 8 + 8 * htab->params->plt_static_chain) != PPC_HA (off)) |
| b9e5796b AM |
10369 | size += 4; |
| 10370 | } | |
| 794e51c0 AM |
10371 | if (stub_entry->h != NULL |
| 10372 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 10373 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10374 | && htab->params->tls_get_addr_opt) |
| 794e51c0 AM |
10375 | size += 13 * 4; |
| 10376 | return size; | |
| 10377 | } | |
| 10378 | ||
| 10379 | /* If this stub would cross fewer 2**plt_stub_align boundaries if we align, | |
| 10380 | then return the padding needed to do so. */ | |
| 10381 | static inline unsigned int | |
| 10382 | plt_stub_pad (struct ppc_link_hash_table *htab, | |
| 10383 | struct ppc_stub_hash_entry *stub_entry, | |
| 10384 | bfd_vma plt_off) | |
| 10385 | { | |
| e7d1c40c | 10386 | int stub_align = 1 << htab->params->plt_stub_align; |
| 794e51c0 | 10387 | unsigned stub_size = plt_stub_size (htab, stub_entry, plt_off); |
| 6f20ed8a | 10388 | bfd_vma stub_off = stub_entry->group->stub_sec->size; |
| 794e51c0 AM |
10389 | |
| 10390 | if (((stub_off + stub_size - 1) & -stub_align) - (stub_off & -stub_align) | |
| e05fa0ba | 10391 | > ((stub_size - 1) & -stub_align)) |
| 794e51c0 AM |
10392 | return stub_align - (stub_off & (stub_align - 1)); |
| 10393 | return 0; | |
| 10394 | } | |
| 10395 | ||
| 10396 | /* Build a .plt call stub. */ | |
| 10397 | ||
| 10398 | static inline bfd_byte * | |
| 10399 | build_plt_stub (struct ppc_link_hash_table *htab, | |
| 10400 | struct ppc_stub_hash_entry *stub_entry, | |
| 10401 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| 10402 | { | |
| e7d1c40c | 10403 | bfd *obfd = htab->params->stub_bfd; |
| b9e5796b | 10404 | bfd_boolean plt_load_toc = htab->opd_abi; |
| e7d1c40c | 10405 | bfd_boolean plt_static_chain = htab->params->plt_static_chain; |
| bd4d2eaa AM |
10406 | bfd_boolean plt_thread_safe = (htab->params->plt_thread_safe |
| 10407 | && htab->elf.dynamic_sections_created | |
| 10408 | && stub_entry->h != NULL | |
| 10409 | && stub_entry->h->elf.dynindx != -1); | |
| 794e51c0 AM |
10410 | bfd_boolean use_fake_dep = plt_thread_safe; |
| 10411 | bfd_vma cmp_branch_off = 0; | |
| 10412 | ||
| 10413 | if (!ALWAYS_USE_FAKE_DEP | |
| b9e5796b | 10414 | && plt_load_toc |
| 794e51c0 | 10415 | && plt_thread_safe |
| bd4d2eaa AM |
10416 | && !((stub_entry->h == htab->tls_get_addr_fd |
| 10417 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 10418 | && htab->params->tls_get_addr_opt)) |
| 794e51c0 AM |
10419 | { |
| 10420 | bfd_vma pltoff = stub_entry->plt_ent->plt.offset & ~1; | |
| b9e5796b AM |
10421 | bfd_vma pltindex = ((pltoff - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 10422 | / PLT_ENTRY_SIZE (htab)); | |
| 794e51c0 AM |
10423 | bfd_vma glinkoff = GLINK_CALL_STUB_SIZE + pltindex * 8; |
| 10424 | bfd_vma to, from; | |
| 10425 | ||
| 68d62958 AM |
10426 | if (pltindex > 32768) |
| 10427 | glinkoff += (pltindex - 32768) * 4; | |
| 794e51c0 AM |
10428 | to = (glinkoff |
| 10429 | + htab->glink->output_offset | |
| 10430 | + htab->glink->output_section->vma); | |
| 6f20ed8a | 10431 | from = (p - stub_entry->group->stub_sec->contents |
| 794e51c0 AM |
10432 | + 4 * (ALWAYS_EMIT_R2SAVE |
| 10433 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10434 | + 4 * (PPC_HA (offset) != 0) | |
| 10435 | + 4 * (PPC_HA (offset + 8 + 8 * plt_static_chain) | |
| 10436 | != PPC_HA (offset)) | |
| 10437 | + 4 * (plt_static_chain != 0) | |
| 10438 | + 20 | |
| 6f20ed8a AM |
10439 | + stub_entry->group->stub_sec->output_offset |
| 10440 | + stub_entry->group->stub_sec->output_section->vma); | |
| 794e51c0 AM |
10441 | cmp_branch_off = to - from; |
| 10442 | use_fake_dep = cmp_branch_off + (1 << 25) >= (1 << 26); | |
| 10443 | } | |
| 10444 | ||
| ac2df442 AM |
10445 | if (PPC_HA (offset) != 0) |
| 10446 | { | |
| 176a0d42 AM |
10447 | if (r != NULL) |
| 10448 | { | |
| 794e51c0 AM |
10449 | if (ALWAYS_EMIT_R2SAVE |
| 10450 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10451 | r[0].r_offset += 4; | |
| 176a0d42 | 10452 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); |
| 3b421ab3 | 10453 | r[1].r_offset = r[0].r_offset + 4; |
| 176a0d42 AM |
10454 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); |
| 10455 | r[1].r_addend = r[0].r_addend; | |
| b9e5796b | 10456 | if (plt_load_toc) |
| 176a0d42 | 10457 | { |
| b9e5796b | 10458 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10459 | { |
| b9e5796b AM |
10460 | r[2].r_offset = r[1].r_offset + 4; |
| 10461 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO); | |
| 10462 | r[2].r_addend = r[0].r_addend; | |
| 10463 | } | |
| 10464 | else | |
| 10465 | { | |
| 10466 | r[2].r_offset = r[1].r_offset + 8 + 8 * use_fake_dep; | |
| 10467 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10468 | r[2].r_addend = r[0].r_addend + 8; | |
| 10469 | if (plt_static_chain) | |
| 10470 | { | |
| 10471 | r[3].r_offset = r[2].r_offset + 4; | |
| 10472 | r[3].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10473 | r[3].r_addend = r[0].r_addend + 16; | |
| 10474 | } | |
| c7131b65 | 10475 | } |
| 176a0d42 AM |
10476 | } |
| 10477 | } | |
| 794e51c0 AM |
10478 | if (ALWAYS_EMIT_R2SAVE |
| 10479 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10480 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 397998fc AM |
10481 | if (plt_load_toc) |
| 10482 | { | |
| 10483 | bfd_put_32 (obfd, ADDIS_R11_R2 | PPC_HA (offset), p), p += 4; | |
| 10484 | bfd_put_32 (obfd, LD_R12_0R11 | PPC_LO (offset), p), p += 4; | |
| 10485 | } | |
| 10486 | else | |
| 10487 | { | |
| 10488 | bfd_put_32 (obfd, ADDIS_R12_R2 | PPC_HA (offset), p), p += 4; | |
| 10489 | bfd_put_32 (obfd, LD_R12_0R12 | PPC_LO (offset), p), p += 4; | |
| 10490 | } | |
| b9e5796b AM |
10491 | if (plt_load_toc |
| 10492 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 | 10493 | { |
| 71a39c98 | 10494 | bfd_put_32 (obfd, ADDI_R11_R11 | PPC_LO (offset), p), p += 4; |
| ac2df442 AM |
10495 | offset = 0; |
| 10496 | } | |
| 71a39c98 | 10497 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10498 | if (plt_load_toc) |
| 794e51c0 | 10499 | { |
| b9e5796b AM |
10500 | if (use_fake_dep) |
| 10501 | { | |
| 10502 | bfd_put_32 (obfd, XOR_R2_R12_R12, p), p += 4; | |
| 10503 | bfd_put_32 (obfd, ADD_R11_R11_R2, p), p += 4; | |
| 10504 | } | |
| 10505 | bfd_put_32 (obfd, LD_R2_0R11 | PPC_LO (offset + 8), p), p += 4; | |
| 10506 | if (plt_static_chain) | |
| 10507 | bfd_put_32 (obfd, LD_R11_0R11 | PPC_LO (offset + 16), p), p += 4; | |
| 794e51c0 | 10508 | } |
| ac2df442 AM |
10509 | } |
| 10510 | else | |
| 10511 | { | |
| 176a0d42 AM |
10512 | if (r != NULL) |
| 10513 | { | |
| 794e51c0 AM |
10514 | if (ALWAYS_EMIT_R2SAVE |
| 10515 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 10516 | r[0].r_offset += 4; | |
| 176a0d42 | 10517 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); |
| b9e5796b | 10518 | if (plt_load_toc) |
| 176a0d42 | 10519 | { |
| b9e5796b | 10520 | if (PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) |
| c7131b65 | 10521 | { |
| b9e5796b AM |
10522 | r[1].r_offset = r[0].r_offset + 4; |
| 10523 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16); | |
| 10524 | r[1].r_addend = r[0].r_addend; | |
| 10525 | } | |
| 10526 | else | |
| 10527 | { | |
| 10528 | r[1].r_offset = r[0].r_offset + 8 + 8 * use_fake_dep; | |
| 10529 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10530 | r[1].r_addend = r[0].r_addend + 8 + 8 * plt_static_chain; | |
| 10531 | if (plt_static_chain) | |
| 10532 | { | |
| 10533 | r[2].r_offset = r[1].r_offset + 4; | |
| 10534 | r[2].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10535 | r[2].r_addend = r[0].r_addend + 8; | |
| 10536 | } | |
| c7131b65 | 10537 | } |
| 176a0d42 AM |
10538 | } |
| 10539 | } | |
| 794e51c0 AM |
10540 | if (ALWAYS_EMIT_R2SAVE |
| 10541 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| a078d95a | 10542 | bfd_put_32 (obfd, STD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| 71a39c98 | 10543 | bfd_put_32 (obfd, LD_R12_0R2 | PPC_LO (offset), p), p += 4; |
| b9e5796b AM |
10544 | if (plt_load_toc |
| 10545 | && PPC_HA (offset + 8 + 8 * plt_static_chain) != PPC_HA (offset)) | |
| ac2df442 AM |
10546 | { |
| 10547 | bfd_put_32 (obfd, ADDI_R2_R2 | PPC_LO (offset), p), p += 4; | |
| 10548 | offset = 0; | |
| 10549 | } | |
| 71a39c98 | 10550 | bfd_put_32 (obfd, MTCTR_R12, p), p += 4; |
| b9e5796b | 10551 | if (plt_load_toc) |
| 794e51c0 | 10552 | { |
| b9e5796b AM |
10553 | if (use_fake_dep) |
| 10554 | { | |
| 10555 | bfd_put_32 (obfd, XOR_R11_R12_R12, p), p += 4; | |
| 10556 | bfd_put_32 (obfd, ADD_R2_R2_R11, p), p += 4; | |
| 10557 | } | |
| 10558 | if (plt_static_chain) | |
| 10559 | bfd_put_32 (obfd, LD_R11_0R2 | PPC_LO (offset + 16), p), p += 4; | |
| 10560 | bfd_put_32 (obfd, LD_R2_0R2 | PPC_LO (offset + 8), p), p += 4; | |
| 794e51c0 | 10561 | } |
| ac2df442 | 10562 | } |
| b9e5796b | 10563 | if (plt_load_toc && plt_thread_safe && !use_fake_dep) |
| 794e51c0 AM |
10564 | { |
| 10565 | bfd_put_32 (obfd, CMPLDI_R2_0, p), p += 4; | |
| 10566 | bfd_put_32 (obfd, BNECTR_P4, p), p += 4; | |
| 22aa0c7e | 10567 | bfd_put_32 (obfd, B_DOT | (cmp_branch_off & 0x3fffffc), p), p += 4; |
| 794e51c0 AM |
10568 | } |
| 10569 | else | |
| 10570 | bfd_put_32 (obfd, BCTR, p), p += 4; | |
| 5d1634d7 AM |
10571 | return p; |
| 10572 | } | |
| 10573 | ||
| a7f2871e AM |
10574 | /* Build a special .plt call stub for __tls_get_addr. */ |
| 10575 | ||
| 10576 | #define LD_R11_0R3 0xe9630000 | |
| 10577 | #define LD_R12_0R3 0xe9830000 | |
| 10578 | #define MR_R0_R3 0x7c601b78 | |
| 10579 | #define CMPDI_R11_0 0x2c2b0000 | |
| 10580 | #define ADD_R3_R12_R13 0x7c6c6a14 | |
| 10581 | #define BEQLR 0x4d820020 | |
| 10582 | #define MR_R3_R0 0x7c030378 | |
| a7f2871e AM |
10583 | #define STD_R11_0R1 0xf9610000 |
| 10584 | #define BCTRL 0x4e800421 | |
| 10585 | #define LD_R11_0R1 0xe9610000 | |
| a7f2871e AM |
10586 | #define MTLR_R11 0x7d6803a6 |
| 10587 | ||
| 10588 | static inline bfd_byte * | |
| 794e51c0 AM |
10589 | build_tls_get_addr_stub (struct ppc_link_hash_table *htab, |
| 10590 | struct ppc_stub_hash_entry *stub_entry, | |
| 10591 | bfd_byte *p, bfd_vma offset, Elf_Internal_Rela *r) | |
| a7f2871e | 10592 | { |
| e7d1c40c | 10593 | bfd *obfd = htab->params->stub_bfd; |
| 794e51c0 | 10594 | |
| a7f2871e AM |
10595 | bfd_put_32 (obfd, LD_R11_0R3 + 0, p), p += 4; |
| 10596 | bfd_put_32 (obfd, LD_R12_0R3 + 8, p), p += 4; | |
| 10597 | bfd_put_32 (obfd, MR_R0_R3, p), p += 4; | |
| 10598 | bfd_put_32 (obfd, CMPDI_R11_0, p), p += 4; | |
| 10599 | bfd_put_32 (obfd, ADD_R3_R12_R13, p), p += 4; | |
| 10600 | bfd_put_32 (obfd, BEQLR, p), p += 4; | |
| 10601 | bfd_put_32 (obfd, MR_R3_R0, p), p += 4; | |
| 10602 | bfd_put_32 (obfd, MFLR_R11, p), p += 4; | |
| a078d95a | 10603 | bfd_put_32 (obfd, STD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10604 | |
| 10605 | if (r != NULL) | |
| 10606 | r[0].r_offset += 9 * 4; | |
| 794e51c0 | 10607 | p = build_plt_stub (htab, stub_entry, p, offset, r); |
| a7f2871e AM |
10608 | bfd_put_32 (obfd, BCTRL, p - 4); |
| 10609 | ||
| a078d95a | 10610 | bfd_put_32 (obfd, LD_R2_0R1 + STK_TOC (htab), p), p += 4; |
| bd4d2eaa | 10611 | bfd_put_32 (obfd, LD_R11_0R1 + STK_LINKER (htab), p), p += 4; |
| a7f2871e AM |
10612 | bfd_put_32 (obfd, MTLR_R11, p), p += 4; |
| 10613 | bfd_put_32 (obfd, BLR, p), p += 4; | |
| 10614 | ||
| 10615 | return p; | |
| 10616 | } | |
| 10617 | ||
| 176a0d42 AM |
10618 | static Elf_Internal_Rela * |
| 10619 | get_relocs (asection *sec, int count) | |
| 10620 | { | |
| 10621 | Elf_Internal_Rela *relocs; | |
| 10622 | struct bfd_elf_section_data *elfsec_data; | |
| 10623 | ||
| 10624 | elfsec_data = elf_section_data (sec); | |
| 10625 | relocs = elfsec_data->relocs; | |
| 10626 | if (relocs == NULL) | |
| 10627 | { | |
| 10628 | bfd_size_type relsize; | |
| 10629 | relsize = sec->reloc_count * sizeof (*relocs); | |
| 10630 | relocs = bfd_alloc (sec->owner, relsize); | |
| 10631 | if (relocs == NULL) | |
| 10632 | return NULL; | |
| 10633 | elfsec_data->relocs = relocs; | |
| d4730f92 BS |
10634 | elfsec_data->rela.hdr = bfd_zalloc (sec->owner, |
| 10635 | sizeof (Elf_Internal_Shdr)); | |
| 10636 | if (elfsec_data->rela.hdr == NULL) | |
| 10637 | return NULL; | |
| 10638 | elfsec_data->rela.hdr->sh_size = (sec->reloc_count | |
| 10639 | * sizeof (Elf64_External_Rela)); | |
| 10640 | elfsec_data->rela.hdr->sh_entsize = sizeof (Elf64_External_Rela); | |
| 176a0d42 AM |
10641 | sec->reloc_count = 0; |
| 10642 | } | |
| 10643 | relocs += sec->reloc_count; | |
| 10644 | sec->reloc_count += count; | |
| 10645 | return relocs; | |
| 10646 | } | |
| 10647 | ||
| aa374f67 | 10648 | static bfd_vma |
| 25f53a85 | 10649 | get_r2off (struct bfd_link_info *info, |
| aa374f67 AM |
10650 | struct ppc_stub_hash_entry *stub_entry) |
| 10651 | { | |
| 25f53a85 | 10652 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 6f20ed8a | 10653 | bfd_vma r2off = htab->sec_info[stub_entry->target_section->id].toc_off; |
| aa374f67 AM |
10654 | |
| 10655 | if (r2off == 0) | |
| 10656 | { | |
| 10657 | /* Support linking -R objects. Get the toc pointer from the | |
| 10658 | opd entry. */ | |
| 10659 | char buf[8]; | |
| b9e5796b AM |
10660 | if (!htab->opd_abi) |
| 10661 | return r2off; | |
| aa374f67 AM |
10662 | asection *opd = stub_entry->h->elf.root.u.def.section; |
| 10663 | bfd_vma opd_off = stub_entry->h->elf.root.u.def.value; | |
| 10664 | ||
| 10665 | if (strcmp (opd->name, ".opd") != 0 | |
| 10666 | || opd->reloc_count != 0) | |
| 10667 | { | |
| bc30df16 | 10668 | info->callbacks->einfo (_("%P: cannot find opd entry toc for `%T'\n"), |
| 25f53a85 | 10669 | stub_entry->h->elf.root.root.string); |
| aa374f67 | 10670 | bfd_set_error (bfd_error_bad_value); |
| a7c49797 | 10671 | return (bfd_vma) -1; |
| aa374f67 AM |
10672 | } |
| 10673 | if (!bfd_get_section_contents (opd->owner, opd, buf, opd_off + 8, 8)) | |
| a7c49797 | 10674 | return (bfd_vma) -1; |
| aa374f67 | 10675 | r2off = bfd_get_64 (opd->owner, buf); |
| 25f53a85 | 10676 | r2off -= elf_gp (info->output_bfd); |
| aa374f67 | 10677 | } |
| 6f20ed8a | 10678 | r2off -= htab->sec_info[stub_entry->group->link_sec->id].toc_off; |
| aa374f67 AM |
10679 | return r2off; |
| 10680 | } | |
| 10681 | ||
| b34976b6 | 10682 | static bfd_boolean |
| 4ce794b7 | 10683 | ppc_build_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 5d1634d7 | 10684 | { |
| 721956f4 AM |
10685 | struct ppc_stub_hash_entry *stub_entry; |
| 10686 | struct ppc_branch_hash_entry *br_entry; | |
| 5d1634d7 AM |
10687 | struct bfd_link_info *info; |
| 10688 | struct ppc_link_hash_table *htab; | |
| 721956f4 AM |
10689 | bfd_byte *loc; |
| 10690 | bfd_byte *p; | |
| ee75fd95 | 10691 | bfd_vma dest, off; |
| 721956f4 | 10692 | int size; |
| 176a0d42 | 10693 | Elf_Internal_Rela *r; |
| e054468f | 10694 | asection *plt; |
| 5d1634d7 | 10695 | |
| 721956f4 AM |
10696 | /* Massage our args to the form they really have. */ |
| 10697 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 4ce794b7 | 10698 | info = in_arg; |
| 5d1634d7 | 10699 | |
| 5d1634d7 | 10700 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
10701 | if (htab == NULL) |
| 10702 | return FALSE; | |
| 5d1634d7 | 10703 | |
| 721956f4 | 10704 | /* Make a note of the offset within the stubs for this entry. */ |
| 6f20ed8a AM |
10705 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; |
| 10706 | loc = stub_entry->group->stub_sec->contents + stub_entry->stub_offset; | |
| 721956f4 | 10707 | |
| 4ce794b7 | 10708 | htab->stub_count[stub_entry->stub_type - 1] += 1; |
| 721956f4 | 10709 | switch (stub_entry->stub_type) |
| 5d1634d7 | 10710 | { |
| 721956f4 | 10711 | case ppc_stub_long_branch: |
| ad8e1ba5 | 10712 | case ppc_stub_long_branch_r2off: |
| 721956f4 | 10713 | /* Branches are relative. This is where we are going to. */ |
| 6911b7dc AM |
10714 | dest = (stub_entry->target_value |
| 10715 | + stub_entry->target_section->output_offset | |
| 10716 | + stub_entry->target_section->output_section->vma); | |
| 10717 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 10718 | off = dest; | |
| 5d1634d7 | 10719 | |
| 721956f4 AM |
10720 | /* And this is where we are coming from. */ |
| 10721 | off -= (stub_entry->stub_offset | |
| 6f20ed8a AM |
10722 | + stub_entry->group->stub_sec->output_offset |
| 10723 | + stub_entry->group->stub_sec->output_section->vma); | |
| e86ce104 | 10724 | |
| ac2df442 AM |
10725 | size = 4; |
| 10726 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| ad8e1ba5 | 10727 | { |
| 25f53a85 | 10728 | bfd_vma r2off = get_r2off (info, stub_entry); |
| ad8e1ba5 | 10729 | |
| a7c49797 | 10730 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10731 | { |
| 10732 | htab->stub_error = TRUE; | |
| 10733 | return FALSE; | |
| 10734 | } | |
| e7d1c40c | 10735 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10736 | loc += 4; |
| a7c49797 | 10737 | size = 8; |
| ac2df442 AM |
10738 | if (PPC_HA (r2off) != 0) |
| 10739 | { | |
| e7d1c40c AM |
10740 | bfd_put_32 (htab->params->stub_bfd, |
| 10741 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| ac2df442 | 10742 | loc += 4; |
| a7c49797 AM |
10743 | size += 4; |
| 10744 | } | |
| 10745 | if (PPC_LO (r2off) != 0) | |
| 10746 | { | |
| 10747 | bfd_put_32 (htab->params->stub_bfd, | |
| 10748 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| 10749 | loc += 4; | |
| 10750 | size += 4; | |
| ac2df442 | 10751 | } |
| ac2df442 | 10752 | off -= size - 4; |
| ad8e1ba5 | 10753 | } |
| e7d1c40c | 10754 | bfd_put_32 (htab->params->stub_bfd, B_DOT | (off & 0x3fffffc), loc); |
| ad8e1ba5 | 10755 | |
| 5c3dead3 AM |
10756 | if (off + (1 << 25) >= (bfd_vma) (1 << 26)) |
| 10757 | { | |
| bc30df16 AM |
10758 | info->callbacks->einfo |
| 10759 | (_("%P: long branch stub `%s' offset overflow\n"), | |
| 10760 | stub_entry->root.string); | |
| 5c3dead3 AM |
10761 | htab->stub_error = TRUE; |
| 10762 | return FALSE; | |
| 10763 | } | |
| ee75fd95 AM |
10764 | |
| 10765 | if (info->emitrelocations) | |
| 10766 | { | |
| 6f20ed8a | 10767 | r = get_relocs (stub_entry->group->stub_sec, 1); |
| 176a0d42 AM |
10768 | if (r == NULL) |
| 10769 | return FALSE; | |
| 6f20ed8a | 10770 | r->r_offset = loc - stub_entry->group->stub_sec->contents; |
| ee75fd95 AM |
10771 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL24); |
| 10772 | r->r_addend = dest; | |
| 10773 | if (stub_entry->h != NULL) | |
| 10774 | { | |
| 10775 | struct elf_link_hash_entry **hashes; | |
| 10776 | unsigned long symndx; | |
| 10777 | struct ppc_link_hash_entry *h; | |
| 10778 | ||
| e7d1c40c | 10779 | hashes = elf_sym_hashes (htab->params->stub_bfd); |
| ee75fd95 AM |
10780 | if (hashes == NULL) |
| 10781 | { | |
| 10782 | bfd_size_type hsize; | |
| 10783 | ||
| 10784 | hsize = (htab->stub_globals + 1) * sizeof (*hashes); | |
| e7d1c40c | 10785 | hashes = bfd_zalloc (htab->params->stub_bfd, hsize); |
| ee75fd95 AM |
10786 | if (hashes == NULL) |
| 10787 | return FALSE; | |
| e7d1c40c | 10788 | elf_sym_hashes (htab->params->stub_bfd) = hashes; |
| ee75fd95 AM |
10789 | htab->stub_globals = 1; |
| 10790 | } | |
| 10791 | symndx = htab->stub_globals++; | |
| 10792 | h = stub_entry->h; | |
| 10793 | hashes[symndx] = &h->elf; | |
| 10794 | r->r_info = ELF64_R_INFO (symndx, R_PPC64_REL24); | |
| 10795 | if (h->oh != NULL && h->oh->is_func) | |
| b31867b6 | 10796 | h = ppc_follow_link (h->oh); |
| ee75fd95 AM |
10797 | if (h->elf.root.u.def.section != stub_entry->target_section) |
| 10798 | /* H is an opd symbol. The addend must be zero. */ | |
| 10799 | r->r_addend = 0; | |
| 10800 | else | |
| 10801 | { | |
| 10802 | off = (h->elf.root.u.def.value | |
| 10803 | + h->elf.root.u.def.section->output_offset | |
| 10804 | + h->elf.root.u.def.section->output_section->vma); | |
| 10805 | r->r_addend -= off; | |
| 10806 | } | |
| 10807 | } | |
| 10808 | } | |
| 721956f4 | 10809 | break; |
| e86ce104 | 10810 | |
| 721956f4 | 10811 | case ppc_stub_plt_branch: |
| ad8e1ba5 | 10812 | case ppc_stub_plt_branch_r2off: |
| 721956f4 AM |
10813 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, |
| 10814 | stub_entry->root.string + 9, | |
| b34976b6 | 10815 | FALSE, FALSE); |
| 721956f4 AM |
10816 | if (br_entry == NULL) |
| 10817 | { | |
| 8de848d8 | 10818 | info->callbacks->einfo (_("%P: can't find branch stub `%s'\n"), |
| 25f53a85 | 10819 | stub_entry->root.string); |
| b34976b6 AM |
10820 | htab->stub_error = TRUE; |
| 10821 | return FALSE; | |
| 721956f4 AM |
10822 | } |
| 10823 | ||
| 176a0d42 AM |
10824 | dest = (stub_entry->target_value |
| 10825 | + stub_entry->target_section->output_offset | |
| 10826 | + stub_entry->target_section->output_section->vma); | |
| 6911b7dc AM |
10827 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| 10828 | dest += PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); | |
| 721956f4 | 10829 | |
| 176a0d42 | 10830 | bfd_put_64 (htab->brlt->owner, dest, |
| 4ce794b7 | 10831 | htab->brlt->contents + br_entry->offset); |
| 721956f4 | 10832 | |
| f94498ff | 10833 | if (br_entry->iter == htab->stub_iteration) |
| 721956f4 | 10834 | { |
| f94498ff | 10835 | br_entry->iter = 0; |
| 84f5d08e | 10836 | |
| f94498ff | 10837 | if (htab->relbrlt != NULL) |
| 84f5d08e | 10838 | { |
| f94498ff AM |
10839 | /* Create a reloc for the branch lookup table entry. */ |
| 10840 | Elf_Internal_Rela rela; | |
| 10841 | bfd_byte *rl; | |
| 10842 | ||
| 10843 | rela.r_offset = (br_entry->offset | |
| 10844 | + htab->brlt->output_offset | |
| 10845 | + htab->brlt->output_section->vma); | |
| 10846 | rela.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10847 | rela.r_addend = dest; |
| f94498ff AM |
10848 | |
| 10849 | rl = htab->relbrlt->contents; | |
| 10850 | rl += (htab->relbrlt->reloc_count++ | |
| 10851 | * sizeof (Elf64_External_Rela)); | |
| 10852 | bfd_elf64_swap_reloca_out (htab->relbrlt->owner, &rela, rl); | |
| 10853 | } | |
| 10854 | else if (info->emitrelocations) | |
| 10855 | { | |
| 176a0d42 AM |
10856 | r = get_relocs (htab->brlt, 1); |
| 10857 | if (r == NULL) | |
| 10858 | return FALSE; | |
| 10859 | /* brlt, being SEC_LINKER_CREATED does not go through the | |
| 10860 | normal reloc processing. Symbols and offsets are not | |
| 10861 | translated from input file to output file form, so | |
| 10862 | set up the offset per the output file. */ | |
| f94498ff AM |
10863 | r->r_offset = (br_entry->offset |
| 10864 | + htab->brlt->output_offset | |
| 10865 | + htab->brlt->output_section->vma); | |
| 10866 | r->r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 176a0d42 | 10867 | r->r_addend = dest; |
| 84f5d08e | 10868 | } |
| 84f5d08e | 10869 | } |
| 721956f4 | 10870 | |
| 176a0d42 AM |
10871 | dest = (br_entry->offset |
| 10872 | + htab->brlt->output_offset | |
| 10873 | + htab->brlt->output_section->vma); | |
| 10874 | ||
| 10875 | off = (dest | |
| 4ce794b7 | 10876 | - elf_gp (htab->brlt->output_section->owner) |
| 6f20ed8a | 10877 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 10878 | |
| ad8e1ba5 | 10879 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 5d1634d7 | 10880 | { |
| 25f53a85 | 10881 | info->callbacks->einfo |
| bc30df16 | 10882 | (_("%P: linkage table error against `%T'\n"), |
| 721956f4 | 10883 | stub_entry->root.string); |
| 5d1634d7 | 10884 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
10885 | htab->stub_error = TRUE; |
| 10886 | return FALSE; | |
| 5d1634d7 | 10887 | } |
| 41bd81ab | 10888 | |
| 176a0d42 AM |
10889 | if (info->emitrelocations) |
| 10890 | { | |
| 6f20ed8a | 10891 | r = get_relocs (stub_entry->group->stub_sec, 1 + (PPC_HA (off) != 0)); |
| 176a0d42 AM |
10892 | if (r == NULL) |
| 10893 | return FALSE; | |
| 6f20ed8a | 10894 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
10895 | if (bfd_big_endian (info->output_bfd)) |
| 10896 | r[0].r_offset += 2; | |
| 00f412ee | 10897 | if (stub_entry->stub_type == ppc_stub_plt_branch_r2off) |
| 176a0d42 AM |
10898 | r[0].r_offset += 4; |
| 10899 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_DS); | |
| 10900 | r[0].r_addend = dest; | |
| 10901 | if (PPC_HA (off) != 0) | |
| 10902 | { | |
| 10903 | r[0].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_HA); | |
| 10904 | r[1].r_offset = r[0].r_offset + 4; | |
| 10905 | r[1].r_info = ELF64_R_INFO (0, R_PPC64_TOC16_LO_DS); | |
| 10906 | r[1].r_addend = r[0].r_addend; | |
| 10907 | } | |
| 10908 | } | |
| 10909 | ||
| 00f412ee | 10910 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ad8e1ba5 | 10911 | { |
| 176a0d42 | 10912 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10913 | { |
| 10914 | size = 16; | |
| e7d1c40c | 10915 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10916 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10917 | loc += 4; |
| e7d1c40c | 10918 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10919 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10920 | } |
| 10921 | else | |
| 10922 | { | |
| 10923 | size = 12; | |
| e7d1c40c AM |
10924 | bfd_put_32 (htab->params->stub_bfd, |
| 10925 | LD_R12_0R2 | PPC_LO (off), loc); | |
| ac2df442 | 10926 | } |
| ad8e1ba5 AM |
10927 | } |
| 10928 | else | |
| 10929 | { | |
| 25f53a85 | 10930 | bfd_vma r2off = get_r2off (info, stub_entry); |
| aa374f67 | 10931 | |
| a7c49797 | 10932 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
10933 | { |
| 10934 | htab->stub_error = TRUE; | |
| 10935 | return FALSE; | |
| 10936 | } | |
| ad8e1ba5 | 10937 | |
| e7d1c40c | 10938 | bfd_put_32 (htab->params->stub_bfd, STD_R2_0R1 + STK_TOC (htab), loc); |
| ad8e1ba5 | 10939 | loc += 4; |
| 00f412ee | 10940 | size = 16; |
| 176a0d42 | 10941 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
10942 | { |
| 10943 | size += 4; | |
| e7d1c40c | 10944 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10945 | ADDIS_R12_R2 | PPC_HA (off), loc); |
| ac2df442 | 10946 | loc += 4; |
| e7d1c40c | 10947 | bfd_put_32 (htab->params->stub_bfd, |
| 397998fc | 10948 | LD_R12_0R12 | PPC_LO (off), loc); |
| ac2df442 AM |
10949 | } |
| 10950 | else | |
| e7d1c40c | 10951 | bfd_put_32 (htab->params->stub_bfd, LD_R12_0R2 | PPC_LO (off), loc); |
| ac2df442 AM |
10952 | |
| 10953 | if (PPC_HA (r2off) != 0) | |
| 10954 | { | |
| 10955 | size += 4; | |
| 00f412ee | 10956 | loc += 4; |
| e7d1c40c AM |
10957 | bfd_put_32 (htab->params->stub_bfd, |
| 10958 | ADDIS_R2_R2 | PPC_HA (r2off), loc); | |
| 00f412ee AM |
10959 | } |
| 10960 | if (PPC_LO (r2off) != 0) | |
| 10961 | { | |
| 10962 | size += 4; | |
| ac2df442 | 10963 | loc += 4; |
| e7d1c40c AM |
10964 | bfd_put_32 (htab->params->stub_bfd, |
| 10965 | ADDI_R2_R2 | PPC_LO (r2off), loc); | |
| ac2df442 | 10966 | } |
| ad8e1ba5 AM |
10967 | } |
| 10968 | loc += 4; | |
| e7d1c40c | 10969 | bfd_put_32 (htab->params->stub_bfd, MTCTR_R12, loc); |
| ad8e1ba5 | 10970 | loc += 4; |
| e7d1c40c | 10971 | bfd_put_32 (htab->params->stub_bfd, BCTR, loc); |
| 721956f4 | 10972 | break; |
| 5d1634d7 | 10973 | |
| 721956f4 | 10974 | case ppc_stub_plt_call: |
| 794e51c0 | 10975 | case ppc_stub_plt_call_r2save: |
| e054468f | 10976 | if (stub_entry->h != NULL |
| b31867b6 AM |
10977 | && stub_entry->h->is_func_descriptor |
| 10978 | && stub_entry->h->oh != NULL) | |
| c862ae31 | 10979 | { |
| b31867b6 AM |
10980 | struct ppc_link_hash_entry *fh = ppc_follow_link (stub_entry->h->oh); |
| 10981 | ||
| 10982 | /* If the old-ABI "dot-symbol" is undefined make it weak so | |
| 6f20ed8a | 10983 | we don't get a link error from RELOC_FOR_GLOBAL_SYMBOL. */ |
| b31867b6 AM |
10984 | if (fh->elf.root.type == bfd_link_hash_undefined) |
| 10985 | fh->elf.root.type = bfd_link_hash_undefweak; | |
| 9507a174 AM |
10986 | /* Stop undo_symbol_twiddle changing it back to undefined. */ |
| 10987 | fh->was_undefined = 0; | |
| c862ae31 AM |
10988 | } |
| 10989 | ||
| 721956f4 | 10990 | /* Now build the stub. */ |
| e054468f | 10991 | dest = stub_entry->plt_ent->plt.offset & ~1; |
| 176a0d42 | 10992 | if (dest >= (bfd_vma) -2) |
| 721956f4 AM |
10993 | abort (); |
| 10994 | ||
| 33e44f2e | 10995 | plt = htab->elf.splt; |
| 25f23106 AM |
10996 | if (!htab->elf.dynamic_sections_created |
| 10997 | || stub_entry->h == NULL | |
| 10998 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 10999 | plt = htab->elf.iplt; |
| e054468f AM |
11000 | |
| 11001 | dest += plt->output_offset + plt->output_section->vma; | |
| 11002 | ||
| 11003 | if (stub_entry->h == NULL | |
| 11004 | && (stub_entry->plt_ent->plt.offset & 1) == 0) | |
| 11005 | { | |
| 11006 | Elf_Internal_Rela rela; | |
| 11007 | bfd_byte *rl; | |
| 11008 | ||
| 11009 | rela.r_offset = dest; | |
| ee67d69a AM |
11010 | if (htab->opd_abi) |
| 11011 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 11012 | else | |
| 11013 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
11014 | rela.r_addend = (stub_entry->target_value |
| 11015 | + stub_entry->target_section->output_offset | |
| 11016 | + stub_entry->target_section->output_section->vma); | |
| 11017 | ||
| 33e44f2e AM |
11018 | rl = (htab->elf.irelplt->contents |
| 11019 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 AM |
11020 | * sizeof (Elf64_External_Rela))); |
| 11021 | bfd_elf64_swap_reloca_out (info->output_bfd, &rela, rl); | |
| e054468f AM |
11022 | stub_entry->plt_ent->plt.offset |= 1; |
| 11023 | } | |
| 176a0d42 AM |
11024 | |
| 11025 | off = (dest | |
| e054468f | 11026 | - elf_gp (plt->output_section->owner) |
| 6f20ed8a | 11027 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11028 | |
| ad8e1ba5 | 11029 | if (off + 0x80008000 > 0xffffffff || (off & 7) != 0) |
| 721956f4 | 11030 | { |
| 25f53a85 | 11031 | info->callbacks->einfo |
| bc30df16 | 11032 | (_("%P: linkage table error against `%T'\n"), |
| e054468f AM |
11033 | stub_entry->h != NULL |
| 11034 | ? stub_entry->h->elf.root.root.string | |
| 11035 | : "<local sym>"); | |
| 721956f4 | 11036 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 AM |
11037 | htab->stub_error = TRUE; |
| 11038 | return FALSE; | |
| 721956f4 AM |
11039 | } |
| 11040 | ||
| e7d1c40c | 11041 | if (htab->params->plt_stub_align != 0) |
| 794e51c0 AM |
11042 | { |
| 11043 | unsigned pad = plt_stub_pad (htab, stub_entry, off); | |
| 11044 | ||
| 6f20ed8a AM |
11045 | stub_entry->group->stub_sec->size += pad; |
| 11046 | stub_entry->stub_offset = stub_entry->group->stub_sec->size; | |
| 794e51c0 AM |
11047 | loc += pad; |
| 11048 | } | |
| 11049 | ||
| 176a0d42 AM |
11050 | r = NULL; |
| 11051 | if (info->emitrelocations) | |
| 11052 | { | |
| 6f20ed8a | 11053 | r = get_relocs (stub_entry->group->stub_sec, |
| 3ba720c7 AM |
11054 | ((PPC_HA (off) != 0) |
| 11055 | + (htab->opd_abi | |
| e7d1c40c | 11056 | ? 2 + (htab->params->plt_static_chain |
| 3ba720c7 AM |
11057 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11058 | : 1))); | |
| 176a0d42 AM |
11059 | if (r == NULL) |
| 11060 | return FALSE; | |
| 6f20ed8a | 11061 | r[0].r_offset = loc - stub_entry->group->stub_sec->contents; |
| 7cfbafbc AM |
11062 | if (bfd_big_endian (info->output_bfd)) |
| 11063 | r[0].r_offset += 2; | |
| 176a0d42 AM |
11064 | r[0].r_addend = dest; |
| 11065 | } | |
| a7f2871e AM |
11066 | if (stub_entry->h != NULL |
| 11067 | && (stub_entry->h == htab->tls_get_addr_fd | |
| 11068 | || stub_entry->h == htab->tls_get_addr) | |
| 7c9cf415 | 11069 | && htab->params->tls_get_addr_opt) |
| 794e51c0 | 11070 | p = build_tls_get_addr_stub (htab, stub_entry, loc, off, r); |
| a7f2871e | 11071 | else |
| 794e51c0 | 11072 | p = build_plt_stub (htab, stub_entry, loc, off, r); |
| 721956f4 AM |
11073 | size = p - loc; |
| 11074 | break; | |
| 11075 | ||
| a4b6fadd AM |
11076 | case ppc_stub_save_res: |
| 11077 | return TRUE; | |
| 11078 | ||
| 721956f4 AM |
11079 | default: |
| 11080 | BFD_FAIL (); | |
| b34976b6 | 11081 | return FALSE; |
| 721956f4 AM |
11082 | } |
| 11083 | ||
| 6f20ed8a | 11084 | stub_entry->group->stub_sec->size += size; |
| 97b639ba | 11085 | |
| e7d1c40c | 11086 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
11087 | { |
| 11088 | struct elf_link_hash_entry *h; | |
| ee75fd95 AM |
11089 | size_t len1, len2; |
| 11090 | char *name; | |
| 11091 | const char *const stub_str[] = { "long_branch", | |
| 11092 | "long_branch_r2off", | |
| 11093 | "plt_branch", | |
| 11094 | "plt_branch_r2off", | |
| 794e51c0 | 11095 | "plt_call", |
| ee75fd95 AM |
11096 | "plt_call" }; |
| 11097 | ||
| 11098 | len1 = strlen (stub_str[stub_entry->stub_type - 1]); | |
| 11099 | len2 = strlen (stub_entry->root.string); | |
| 11100 | name = bfd_malloc (len1 + len2 + 2); | |
| 11101 | if (name == NULL) | |
| 11102 | return FALSE; | |
| 11103 | memcpy (name, stub_entry->root.string, 9); | |
| 11104 | memcpy (name + 9, stub_str[stub_entry->stub_type - 1], len1); | |
| 11105 | memcpy (name + len1 + 9, stub_entry->root.string + 8, len2 - 8 + 1); | |
| 11106 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 97b639ba AM |
11107 | if (h == NULL) |
| 11108 | return FALSE; | |
| 11109 | if (h->root.type == bfd_link_hash_new) | |
| 11110 | { | |
| 11111 | h->root.type = bfd_link_hash_defined; | |
| 6f20ed8a | 11112 | h->root.u.def.section = stub_entry->group->stub_sec; |
| 97b639ba | 11113 | h->root.u.def.value = stub_entry->stub_offset; |
| f5385ebf AM |
11114 | h->ref_regular = 1; |
| 11115 | h->def_regular = 1; | |
| 11116 | h->ref_regular_nonweak = 1; | |
| 11117 | h->forced_local = 1; | |
| 11118 | h->non_elf = 0; | |
| 2ec55de3 | 11119 | h->root.linker_def = 1; |
| 97b639ba AM |
11120 | } |
| 11121 | } | |
| 11122 | ||
| b34976b6 | 11123 | return TRUE; |
| 721956f4 AM |
11124 | } |
| 11125 | ||
| 11126 | /* As above, but don't actually build the stub. Just bump offset so | |
| 11127 | we know stub section sizes, and select plt_branch stubs where | |
| 11128 | long_branch stubs won't do. */ | |
| 11129 | ||
| b34976b6 | 11130 | static bfd_boolean |
| 4ce794b7 | 11131 | ppc_size_one_stub (struct bfd_hash_entry *gen_entry, void *in_arg) |
| 721956f4 AM |
11132 | { |
| 11133 | struct ppc_stub_hash_entry *stub_entry; | |
| 63bc6f6c | 11134 | struct bfd_link_info *info; |
| 721956f4 AM |
11135 | struct ppc_link_hash_table *htab; |
| 11136 | bfd_vma off; | |
| 11137 | int size; | |
| 11138 | ||
| 11139 | /* Massage our args to the form they really have. */ | |
| 11140 | stub_entry = (struct ppc_stub_hash_entry *) gen_entry; | |
| 63bc6f6c AM |
11141 | info = in_arg; |
| 11142 | ||
| 11143 | htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
11144 | if (htab == NULL) |
| 11145 | return FALSE; | |
| 721956f4 | 11146 | |
| a4b6fadd AM |
11147 | if (stub_entry->h != NULL |
| 11148 | && stub_entry->h->save_res | |
| 11149 | && stub_entry->h->elf.root.type == bfd_link_hash_defined | |
| 11150 | && stub_entry->h->elf.root.u.def.section == htab->sfpr) | |
| 11151 | { | |
| 11152 | /* Don't make stubs to out-of-line register save/restore | |
| 11153 | functions. Instead, emit copies of the functions. */ | |
| 11154 | stub_entry->group->needs_save_res = 1; | |
| 11155 | stub_entry->stub_type = ppc_stub_save_res; | |
| 11156 | return TRUE; | |
| 11157 | } | |
| 11158 | ||
| 794e51c0 AM |
11159 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 11160 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 721956f4 | 11161 | { |
| e054468f AM |
11162 | asection *plt; |
| 11163 | off = stub_entry->plt_ent->plt.offset & ~(bfd_vma) 1; | |
| 58ac9f71 | 11164 | if (off >= (bfd_vma) -2) |
| 411e1bfb | 11165 | abort (); |
| 33e44f2e | 11166 | plt = htab->elf.splt; |
| 25f23106 AM |
11167 | if (!htab->elf.dynamic_sections_created |
| 11168 | || stub_entry->h == NULL | |
| 11169 | || stub_entry->h->elf.dynindx == -1) | |
| 33e44f2e | 11170 | plt = htab->elf.iplt; |
| e054468f AM |
11171 | off += (plt->output_offset |
| 11172 | + plt->output_section->vma | |
| 11173 | - elf_gp (plt->output_section->owner) | |
| 6f20ed8a | 11174 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| 721956f4 | 11175 | |
| 794e51c0 | 11176 | size = plt_stub_size (htab, stub_entry, off); |
| e7d1c40c | 11177 | if (htab->params->plt_stub_align) |
| 794e51c0 | 11178 | size += plt_stub_pad (htab, stub_entry, off); |
| 176a0d42 AM |
11179 | if (info->emitrelocations) |
| 11180 | { | |
| 6f20ed8a | 11181 | stub_entry->group->stub_sec->reloc_count |
| b9e5796b AM |
11182 | += ((PPC_HA (off) != 0) |
| 11183 | + (htab->opd_abi | |
| e7d1c40c | 11184 | ? 2 + (htab->params->plt_static_chain |
| b9e5796b AM |
11185 | && PPC_HA (off + 16) == PPC_HA (off)) |
| 11186 | : 1)); | |
| 6f20ed8a | 11187 | stub_entry->group->stub_sec->flags |= SEC_RELOC; |
| 176a0d42 | 11188 | } |
| 721956f4 AM |
11189 | } |
| 11190 | else | |
| 11191 | { | |
| ad8e1ba5 AM |
11192 | /* ppc_stub_long_branch or ppc_stub_plt_branch, or their r2off |
| 11193 | variants. */ | |
| ac2df442 | 11194 | bfd_vma r2off = 0; |
| 6911b7dc | 11195 | bfd_vma local_off = 0; |
| ac2df442 | 11196 | |
| 721956f4 AM |
11197 | off = (stub_entry->target_value |
| 11198 | + stub_entry->target_section->output_offset | |
| 11199 | + stub_entry->target_section->output_section->vma); | |
| 6f20ed8a AM |
11200 | off -= (stub_entry->group->stub_sec->size |
| 11201 | + stub_entry->group->stub_sec->output_offset | |
| 11202 | + stub_entry->group->stub_sec->output_section->vma); | |
| 721956f4 | 11203 | |
| ad8e1ba5 AM |
11204 | /* Reset the stub type from the plt variant in case we now |
| 11205 | can reach with a shorter stub. */ | |
| 11206 | if (stub_entry->stub_type >= ppc_stub_plt_branch) | |
| 11207 | stub_entry->stub_type += ppc_stub_long_branch - ppc_stub_plt_branch; | |
| 11208 | ||
| 11209 | size = 4; | |
| 11210 | if (stub_entry->stub_type == ppc_stub_long_branch_r2off) | |
| 11211 | { | |
| 25f53a85 | 11212 | r2off = get_r2off (info, stub_entry); |
| a7c49797 | 11213 | if (r2off == (bfd_vma) -1) |
| aa374f67 AM |
11214 | { |
| 11215 | htab->stub_error = TRUE; | |
| 11216 | return FALSE; | |
| 11217 | } | |
| a7c49797 | 11218 | size = 8; |
| ac2df442 | 11219 | if (PPC_HA (r2off) != 0) |
| a7c49797 AM |
11220 | size += 4; |
| 11221 | if (PPC_LO (r2off) != 0) | |
| 11222 | size += 4; | |
| ac2df442 | 11223 | off -= size - 4; |
| ad8e1ba5 AM |
11224 | } |
| 11225 | ||
| 6911b7dc AM |
11226 | local_off = PPC64_LOCAL_ENTRY_OFFSET (stub_entry->other); |
| 11227 | ||
| b9e5796b AM |
11228 | /* If the branch offset if too big, use a ppc_stub_plt_branch. |
| 11229 | Do the same for -R objects without function descriptors. */ | |
| 11230 | if (off + (1 << 25) >= (bfd_vma) (1 << 26) - local_off | |
| 11231 | || (stub_entry->stub_type == ppc_stub_long_branch_r2off | |
| a7c49797 AM |
11232 | && r2off == 0 |
| 11233 | && htab->sec_info[stub_entry->target_section->id].toc_off == 0)) | |
| 721956f4 AM |
11234 | { |
| 11235 | struct ppc_branch_hash_entry *br_entry; | |
| 11236 | ||
| 11237 | br_entry = ppc_branch_hash_lookup (&htab->branch_hash_table, | |
| 11238 | stub_entry->root.string + 9, | |
| b34976b6 | 11239 | TRUE, FALSE); |
| 721956f4 AM |
11240 | if (br_entry == NULL) |
| 11241 | { | |
| 8de848d8 | 11242 | info->callbacks->einfo (_("%P: can't build branch stub `%s'\n"), |
| 25f53a85 | 11243 | stub_entry->root.string); |
| b34976b6 AM |
11244 | htab->stub_error = TRUE; |
| 11245 | return FALSE; | |
| 721956f4 AM |
11246 | } |
| 11247 | ||
| 11248 | if (br_entry->iter != htab->stub_iteration) | |
| 11249 | { | |
| 11250 | br_entry->iter = htab->stub_iteration; | |
| eea6121a AM |
11251 | br_entry->offset = htab->brlt->size; |
| 11252 | htab->brlt->size += 8; | |
| 63bc6f6c | 11253 | |
| ee75fd95 | 11254 | if (htab->relbrlt != NULL) |
| eea6121a | 11255 | htab->relbrlt->size += sizeof (Elf64_External_Rela); |
| 84f5d08e AM |
11256 | else if (info->emitrelocations) |
| 11257 | { | |
| 11258 | htab->brlt->reloc_count += 1; | |
| 11259 | htab->brlt->flags |= SEC_RELOC; | |
| 11260 | } | |
| 721956f4 | 11261 | } |
| ad8e1ba5 AM |
11262 | |
| 11263 | stub_entry->stub_type += ppc_stub_plt_branch - ppc_stub_long_branch; | |
| ac2df442 AM |
11264 | off = (br_entry->offset |
| 11265 | + htab->brlt->output_offset | |
| 11266 | + htab->brlt->output_section->vma | |
| 11267 | - elf_gp (htab->brlt->output_section->owner) | |
| 6f20ed8a | 11268 | - htab->sec_info[stub_entry->group->link_sec->id].toc_off); |
| ac2df442 | 11269 | |
| 176a0d42 AM |
11270 | if (info->emitrelocations) |
| 11271 | { | |
| 6f20ed8a AM |
11272 | stub_entry->group->stub_sec->reloc_count |
| 11273 | += 1 + (PPC_HA (off) != 0); | |
| 11274 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 176a0d42 AM |
11275 | } |
| 11276 | ||
| 00f412ee | 11277 | if (stub_entry->stub_type != ppc_stub_plt_branch_r2off) |
| ac2df442 AM |
11278 | { |
| 11279 | size = 12; | |
| 176a0d42 | 11280 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11281 | size = 16; |
| 11282 | } | |
| 11283 | else | |
| 11284 | { | |
| 00f412ee | 11285 | size = 16; |
| 176a0d42 | 11286 | if (PPC_HA (off) != 0) |
| ac2df442 AM |
11287 | size += 4; |
| 11288 | ||
| 11289 | if (PPC_HA (r2off) != 0) | |
| 11290 | size += 4; | |
| 00f412ee AM |
11291 | if (PPC_LO (r2off) != 0) |
| 11292 | size += 4; | |
| ac2df442 | 11293 | } |
| 721956f4 | 11294 | } |
| 84f5d08e AM |
11295 | else if (info->emitrelocations) |
| 11296 | { | |
| 6f20ed8a AM |
11297 | stub_entry->group->stub_sec->reloc_count += 1; |
| 11298 | stub_entry->group->stub_sec->flags |= SEC_RELOC; | |
| 84f5d08e | 11299 | } |
| 721956f4 AM |
11300 | } |
| 11301 | ||
| 6f20ed8a | 11302 | stub_entry->group->stub_sec->size += size; |
| b34976b6 | 11303 | return TRUE; |
| 721956f4 AM |
11304 | } |
| 11305 | ||
| 11306 | /* Set up various things so that we can make a list of input sections | |
| 11307 | for each output section included in the link. Returns -1 on error, | |
| cedb70c5 | 11308 | 0 when no stubs will be needed, and 1 on success. */ |
| 721956f4 AM |
11309 | |
| 11310 | int | |
| e7d1c40c | 11311 | ppc64_elf_setup_section_lists (struct bfd_link_info *info) |
| 721956f4 | 11312 | { |
| 6f20ed8a | 11313 | unsigned int id; |
| 721956f4 AM |
11314 | bfd_size_type amt; |
| 11315 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11316 | ||
| 4dfe6ac6 NC |
11317 | if (htab == NULL) |
| 11318 | return -1; | |
| 4c52953f | 11319 | |
| 6f20ed8a AM |
11320 | htab->sec_info_arr_size = bfd_get_next_section_id (); |
| 11321 | amt = sizeof (*htab->sec_info) * (htab->sec_info_arr_size); | |
| 11322 | htab->sec_info = bfd_zmalloc (amt); | |
| 11323 | if (htab->sec_info == NULL) | |
| 721956f4 AM |
11324 | return -1; |
| 11325 | ||
| 3d6f9012 AM |
11326 | /* Set toc_off for com, und, abs and ind sections. */ |
| 11327 | for (id = 0; id < 3; id++) | |
| 6f20ed8a | 11328 | htab->sec_info[id].toc_off = TOC_BASE_OFF; |
| 734b6cf9 | 11329 | |
| 721956f4 AM |
11330 | return 1; |
| 11331 | } | |
| 11332 | ||
| 927be08e AM |
11333 | /* Set up for first pass at multitoc partitioning. */ |
| 11334 | ||
| 11335 | void | |
| 11336 | ppc64_elf_start_multitoc_partition (struct bfd_link_info *info) | |
| 11337 | { | |
| 11338 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11339 | ||
| 1c865ab2 | 11340 | htab->toc_curr = ppc64_elf_set_toc (info, info->output_bfd); |
| 927be08e AM |
11341 | htab->toc_bfd = NULL; |
| 11342 | htab->toc_first_sec = NULL; | |
| 11343 | } | |
| 11344 | ||
| e717da7e AM |
11345 | /* The linker repeatedly calls this function for each TOC input section |
| 11346 | and linker generated GOT section. Group input bfds such that the toc | |
| 927be08e | 11347 | within a group is less than 64k in size. */ |
| ad8e1ba5 | 11348 | |
| 927be08e | 11349 | bfd_boolean |
| 4ce794b7 | 11350 | ppc64_elf_next_toc_section (struct bfd_link_info *info, asection *isec) |
| ad8e1ba5 AM |
11351 | { |
| 11352 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| d77c8a4b | 11353 | bfd_vma addr, off, limit; |
| ad8e1ba5 | 11354 | |
| 4dfe6ac6 NC |
11355 | if (htab == NULL) |
| 11356 | return FALSE; | |
| 11357 | ||
| 927be08e | 11358 | if (!htab->second_toc_pass) |
| 4c52953f | 11359 | { |
| 927be08e | 11360 | /* Keep track of the first .toc or .got section for this input bfd. */ |
| a4fd3de5 AM |
11361 | bfd_boolean new_bfd = htab->toc_bfd != isec->owner; |
| 11362 | ||
| 11363 | if (new_bfd) | |
| bf102f86 AM |
11364 | { |
| 11365 | htab->toc_bfd = isec->owner; | |
| 11366 | htab->toc_first_sec = isec; | |
| 11367 | } | |
| 927be08e | 11368 | |
| bf102f86 AM |
11369 | addr = isec->output_offset + isec->output_section->vma; |
| 11370 | off = addr - htab->toc_curr; | |
| d77c8a4b AM |
11371 | limit = 0x80008000; |
| 11372 | if (ppc64_elf_tdata (isec->owner)->has_small_toc_reloc) | |
| 11373 | limit = 0x10000; | |
| 11374 | if (off + isec->size > limit) | |
| bf102f86 AM |
11375 | { |
| 11376 | addr = (htab->toc_first_sec->output_offset | |
| 11377 | + htab->toc_first_sec->output_section->vma); | |
| 11378 | htab->toc_curr = addr; | |
| a27e685f | 11379 | htab->toc_curr &= -TOC_BASE_ALIGN; |
| bf102f86 | 11380 | } |
| 99877b66 | 11381 | |
| 927be08e AM |
11382 | /* toc_curr is the base address of this toc group. Set elf_gp |
| 11383 | for the input section to be the offset relative to the | |
| 11384 | output toc base plus 0x8000. Making the input elf_gp an | |
| 11385 | offset allows us to move the toc as a whole without | |
| 11386 | recalculating input elf_gp. */ | |
| 11387 | off = htab->toc_curr - elf_gp (isec->output_section->owner); | |
| 11388 | off += TOC_BASE_OFF; | |
| 11389 | ||
| 11390 | /* Die if someone uses a linker script that doesn't keep input | |
| 11391 | file .toc and .got together. */ | |
| a4fd3de5 AM |
11392 | if (new_bfd |
| 11393 | && elf_gp (isec->owner) != 0 | |
| 927be08e AM |
11394 | && elf_gp (isec->owner) != off) |
| 11395 | return FALSE; | |
| 11396 | ||
| 11397 | elf_gp (isec->owner) = off; | |
| 11398 | return TRUE; | |
| 4c52953f | 11399 | } |
| 927be08e AM |
11400 | |
| 11401 | /* During the second pass toc_first_sec points to the start of | |
| 11402 | a toc group, and toc_curr is used to track the old elf_gp. | |
| 11403 | We use toc_bfd to ensure we only look at each bfd once. */ | |
| 11404 | if (htab->toc_bfd == isec->owner) | |
| 11405 | return TRUE; | |
| 11406 | htab->toc_bfd = isec->owner; | |
| 11407 | ||
| 11408 | if (htab->toc_first_sec == NULL | |
| 11409 | || htab->toc_curr != elf_gp (isec->owner)) | |
| 11410 | { | |
| 11411 | htab->toc_curr = elf_gp (isec->owner); | |
| 11412 | htab->toc_first_sec = isec; | |
| 11413 | } | |
| 11414 | addr = (htab->toc_first_sec->output_offset | |
| 11415 | + htab->toc_first_sec->output_section->vma); | |
| 11416 | off = addr - elf_gp (isec->output_section->owner) + TOC_BASE_OFF; | |
| 11417 | elf_gp (isec->owner) = off; | |
| 11418 | ||
| 11419 | return TRUE; | |
| ad8e1ba5 AM |
11420 | } |
| 11421 | ||
| 927be08e AM |
11422 | /* Called via elf_link_hash_traverse to merge GOT entries for global |
| 11423 | symbol H. */ | |
| 11424 | ||
| 11425 | static bfd_boolean | |
| 11426 | merge_global_got (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 11427 | { | |
| 11428 | if (h->root.type == bfd_link_hash_indirect) | |
| 11429 | return TRUE; | |
| 11430 | ||
| 927be08e AM |
11431 | merge_got_entries (&h->got.glist); |
| 11432 | ||
| 11433 | return TRUE; | |
| 11434 | } | |
| 11435 | ||
| 11436 | /* Called via elf_link_hash_traverse to allocate GOT entries for global | |
| 11437 | symbol H. */ | |
| 11438 | ||
| 11439 | static bfd_boolean | |
| 11440 | reallocate_got (struct elf_link_hash_entry *h, void *inf) | |
| 11441 | { | |
| 11442 | struct got_entry *gent; | |
| 11443 | ||
| 11444 | if (h->root.type == bfd_link_hash_indirect) | |
| 11445 | return TRUE; | |
| 11446 | ||
| 927be08e AM |
11447 | for (gent = h->got.glist; gent != NULL; gent = gent->next) |
| 11448 | if (!gent->is_indirect) | |
| 11449 | allocate_got (h, (struct bfd_link_info *) inf, gent); | |
| 11450 | return TRUE; | |
| 11451 | } | |
| 11452 | ||
| 11453 | /* Called on the first multitoc pass after the last call to | |
| 11454 | ppc64_elf_next_toc_section. This function removes duplicate GOT | |
| 11455 | entries. */ | |
| 11456 | ||
| 11457 | bfd_boolean | |
| 11458 | ppc64_elf_layout_multitoc (struct bfd_link_info *info) | |
| ad8e1ba5 AM |
11459 | { |
| 11460 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 927be08e AM |
11461 | struct bfd *ibfd, *ibfd2; |
| 11462 | bfd_boolean done_something; | |
| 11463 | ||
| 11464 | htab->multi_toc_needed = htab->toc_curr != elf_gp (info->output_bfd); | |
| ad8e1ba5 | 11465 | |
| 7865406b AM |
11466 | if (!htab->do_multi_toc) |
| 11467 | return FALSE; | |
| 11468 | ||
| d0fae19d | 11469 | /* Merge global sym got entries within a toc group. */ |
| 927be08e AM |
11470 | elf_link_hash_traverse (&htab->elf, merge_global_got, info); |
| 11471 | ||
| 11472 | /* And tlsld_got. */ | |
| c72f2fb2 | 11473 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11474 | { |
| 11475 | struct got_entry *ent, *ent2; | |
| 11476 | ||
| 11477 | if (!is_ppc64_elf (ibfd)) | |
| 11478 | continue; | |
| 11479 | ||
| 11480 | ent = ppc64_tlsld_got (ibfd); | |
| 11481 | if (!ent->is_indirect | |
| 11482 | && ent->got.offset != (bfd_vma) -1) | |
| 11483 | { | |
| c72f2fb2 | 11484 | for (ibfd2 = ibfd->link.next; ibfd2 != NULL; ibfd2 = ibfd2->link.next) |
| 927be08e AM |
11485 | { |
| 11486 | if (!is_ppc64_elf (ibfd2)) | |
| 11487 | continue; | |
| 11488 | ||
| 11489 | ent2 = ppc64_tlsld_got (ibfd2); | |
| 11490 | if (!ent2->is_indirect | |
| 11491 | && ent2->got.offset != (bfd_vma) -1 | |
| 11492 | && elf_gp (ibfd2) == elf_gp (ibfd)) | |
| 11493 | { | |
| 11494 | ent2->is_indirect = TRUE; | |
| 11495 | ent2->got.ent = ent; | |
| 11496 | } | |
| 11497 | } | |
| 11498 | } | |
| 11499 | } | |
| 11500 | ||
| 11501 | /* Zap sizes of got sections. */ | |
| 33e44f2e AM |
11502 | htab->elf.irelplt->rawsize = htab->elf.irelplt->size; |
| 11503 | htab->elf.irelplt->size -= htab->got_reli_size; | |
| 927be08e AM |
11504 | htab->got_reli_size = 0; |
| 11505 | ||
| c72f2fb2 | 11506 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11507 | { |
| 11508 | asection *got, *relgot; | |
| 11509 | ||
| 11510 | if (!is_ppc64_elf (ibfd)) | |
| 11511 | continue; | |
| 11512 | ||
| 11513 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11514 | if (got != NULL) | |
| 11515 | { | |
| 11516 | got->rawsize = got->size; | |
| 11517 | got->size = 0; | |
| 11518 | relgot = ppc64_elf_tdata (ibfd)->relgot; | |
| 11519 | relgot->rawsize = relgot->size; | |
| 11520 | relgot->size = 0; | |
| 11521 | } | |
| 11522 | } | |
| 11523 | ||
| 11524 | /* Now reallocate the got, local syms first. We don't need to | |
| 11525 | allocate section contents again since we never increase size. */ | |
| c72f2fb2 | 11526 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11527 | { |
| 11528 | struct got_entry **lgot_ents; | |
| 11529 | struct got_entry **end_lgot_ents; | |
| 11530 | struct plt_entry **local_plt; | |
| 11531 | struct plt_entry **end_local_plt; | |
| f961d9dd | 11532 | unsigned char *lgot_masks; |
| 927be08e AM |
11533 | bfd_size_type locsymcount; |
| 11534 | Elf_Internal_Shdr *symtab_hdr; | |
| 19e08130 | 11535 | asection *s; |
| 927be08e AM |
11536 | |
| 11537 | if (!is_ppc64_elf (ibfd)) | |
| 11538 | continue; | |
| 11539 | ||
| 11540 | lgot_ents = elf_local_got_ents (ibfd); | |
| 11541 | if (!lgot_ents) | |
| 11542 | continue; | |
| 11543 | ||
| 11544 | symtab_hdr = &elf_symtab_hdr (ibfd); | |
| 11545 | locsymcount = symtab_hdr->sh_info; | |
| 11546 | end_lgot_ents = lgot_ents + locsymcount; | |
| 11547 | local_plt = (struct plt_entry **) end_lgot_ents; | |
| 11548 | end_local_plt = local_plt + locsymcount; | |
| f961d9dd | 11549 | lgot_masks = (unsigned char *) end_local_plt; |
| 927be08e | 11550 | s = ppc64_elf_tdata (ibfd)->got; |
| 927be08e AM |
11551 | for (; lgot_ents < end_lgot_ents; ++lgot_ents, ++lgot_masks) |
| 11552 | { | |
| 11553 | struct got_entry *ent; | |
| 11554 | ||
| 11555 | for (ent = *lgot_ents; ent != NULL; ent = ent->next) | |
| d0fae19d | 11556 | { |
| 19e08130 AM |
11557 | unsigned int ent_size = 8; |
| 11558 | unsigned int rel_size = sizeof (Elf64_External_Rela); | |
| 11559 | ||
| d0fae19d AM |
11560 | ent->got.offset = s->size; |
| 11561 | if ((ent->tls_type & *lgot_masks & TLS_GD) != 0) | |
| d0fae19d | 11562 | { |
| 19e08130 AM |
11563 | ent_size *= 2; |
| 11564 | rel_size *= 2; | |
| 11565 | } | |
| 11566 | s->size += ent_size; | |
| 11567 | if ((*lgot_masks & PLT_IFUNC) != 0) | |
| 11568 | { | |
| 33e44f2e | 11569 | htab->elf.irelplt->size += rel_size; |
| 19e08130 AM |
11570 | htab->got_reli_size += rel_size; |
| 11571 | } | |
| 0e1862bb | 11572 | else if (bfd_link_pic (info)) |
| 19e08130 AM |
11573 | { |
| 11574 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11575 | srel->size += rel_size; | |
| d0fae19d AM |
11576 | } |
| 11577 | } | |
| 927be08e AM |
11578 | } |
| 11579 | } | |
| 11580 | ||
| 11581 | elf_link_hash_traverse (&htab->elf, reallocate_got, info); | |
| 11582 | ||
| c72f2fb2 | 11583 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11584 | { |
| 11585 | struct got_entry *ent; | |
| 11586 | ||
| 11587 | if (!is_ppc64_elf (ibfd)) | |
| 11588 | continue; | |
| 11589 | ||
| 11590 | ent = ppc64_tlsld_got (ibfd); | |
| 11591 | if (!ent->is_indirect | |
| 11592 | && ent->got.offset != (bfd_vma) -1) | |
| 11593 | { | |
| 11594 | asection *s = ppc64_elf_tdata (ibfd)->got; | |
| 11595 | ent->got.offset = s->size; | |
| 11596 | s->size += 16; | |
| 0e1862bb | 11597 | if (bfd_link_pic (info)) |
| 927be08e AM |
11598 | { |
| 11599 | asection *srel = ppc64_elf_tdata (ibfd)->relgot; | |
| 11600 | srel->size += sizeof (Elf64_External_Rela); | |
| 11601 | } | |
| 11602 | } | |
| 11603 | } | |
| 11604 | ||
| 33e44f2e | 11605 | done_something = htab->elf.irelplt->rawsize != htab->elf.irelplt->size; |
| 927be08e | 11606 | if (!done_something) |
| c72f2fb2 | 11607 | for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link.next) |
| 927be08e AM |
11608 | { |
| 11609 | asection *got; | |
| 11610 | ||
| 11611 | if (!is_ppc64_elf (ibfd)) | |
| 11612 | continue; | |
| 11613 | ||
| 11614 | got = ppc64_elf_tdata (ibfd)->got; | |
| 11615 | if (got != NULL) | |
| 11616 | { | |
| 11617 | done_something = got->rawsize != got->size; | |
| 11618 | if (done_something) | |
| 11619 | break; | |
| 11620 | } | |
| 11621 | } | |
| 11622 | ||
| 11623 | if (done_something) | |
| e7d1c40c | 11624 | (*htab->params->layout_sections_again) (); |
| 927be08e AM |
11625 | |
| 11626 | /* Set up for second pass over toc sections to recalculate elf_gp | |
| 11627 | on input sections. */ | |
| 11628 | htab->toc_bfd = NULL; | |
| 11629 | htab->toc_first_sec = NULL; | |
| 11630 | htab->second_toc_pass = TRUE; | |
| 11631 | return done_something; | |
| 11632 | } | |
| 11633 | ||
| 11634 | /* Called after second pass of multitoc partitioning. */ | |
| 11635 | ||
| 11636 | void | |
| 11637 | ppc64_elf_finish_multitoc_partition (struct bfd_link_info *info) | |
| 11638 | { | |
| 11639 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11640 | ||
| 11641 | /* After the second pass, toc_curr tracks the TOC offset used | |
| 11642 | for code sections below in ppc64_elf_next_input_section. */ | |
| 3d6f9012 | 11643 | htab->toc_curr = TOC_BASE_OFF; |
| ad8e1ba5 AM |
11644 | } |
| 11645 | ||
| 9b5ecbd0 AM |
11646 | /* No toc references were found in ISEC. If the code in ISEC makes no |
| 11647 | calls, then there's no need to use toc adjusting stubs when branching | |
| 11648 | into ISEC. Actually, indirect calls from ISEC are OK as they will | |
| 4c52953f AM |
11649 | load r2. Returns -1 on error, 0 for no stub needed, 1 for stub |
| 11650 | needed, and 2 if a cyclical call-graph was found but no other reason | |
| 11651 | for a stub was detected. If called from the top level, a return of | |
| 11652 | 2 means the same as a return of 0. */ | |
| 9b5ecbd0 AM |
11653 | |
| 11654 | static int | |
| 4ce794b7 | 11655 | toc_adjusting_stub_needed (struct bfd_link_info *info, asection *isec) |
| 9b5ecbd0 | 11656 | { |
| 9b5ecbd0 | 11657 | int ret; |
| 70cc837d AM |
11658 | |
| 11659 | /* Mark this section as checked. */ | |
| 11660 | isec->call_check_done = 1; | |
| 9b5ecbd0 | 11661 | |
| 772119ce AM |
11662 | /* We know none of our code bearing sections will need toc stubs. */ |
| 11663 | if ((isec->flags & SEC_LINKER_CREATED) != 0) | |
| 11664 | return 0; | |
| 11665 | ||
| eea6121a | 11666 | if (isec->size == 0) |
| 082c50f8 AM |
11667 | return 0; |
| 11668 | ||
| 4c52953f AM |
11669 | if (isec->output_section == NULL) |
| 11670 | return 0; | |
| 11671 | ||
| 4c52953f | 11672 | ret = 0; |
| 70cc837d | 11673 | if (isec->reloc_count != 0) |
| 9b5ecbd0 | 11674 | { |
| 70cc837d AM |
11675 | Elf_Internal_Rela *relstart, *rel; |
| 11676 | Elf_Internal_Sym *local_syms; | |
| 11677 | struct ppc_link_hash_table *htab; | |
| 2917689a | 11678 | |
| 70cc837d AM |
11679 | relstart = _bfd_elf_link_read_relocs (isec->owner, isec, NULL, NULL, |
| 11680 | info->keep_memory); | |
| 11681 | if (relstart == NULL) | |
| 11682 | return -1; | |
| 90aecf7a | 11683 | |
| 70cc837d AM |
11684 | /* Look for branches to outside of this section. */ |
| 11685 | local_syms = NULL; | |
| 11686 | htab = ppc_hash_table (info); | |
| 11687 | if (htab == NULL) | |
| 11688 | return -1; | |
| 4c52953f | 11689 | |
| 70cc837d | 11690 | for (rel = relstart; rel < relstart + isec->reloc_count; ++rel) |
| 4c52953f | 11691 | { |
| 70cc837d AM |
11692 | enum elf_ppc64_reloc_type r_type; |
| 11693 | unsigned long r_symndx; | |
| 11694 | struct elf_link_hash_entry *h; | |
| 11695 | struct ppc_link_hash_entry *eh; | |
| 11696 | Elf_Internal_Sym *sym; | |
| 11697 | asection *sym_sec; | |
| 11698 | struct _opd_sec_data *opd; | |
| 11699 | bfd_vma sym_value; | |
| 11700 | bfd_vma dest; | |
| 11701 | ||
| 11702 | r_type = ELF64_R_TYPE (rel->r_info); | |
| 11703 | if (r_type != R_PPC64_REL24 | |
| 11704 | && r_type != R_PPC64_REL14 | |
| 11705 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 11706 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 11707 | continue; | |
| 4c52953f | 11708 | |
| 70cc837d AM |
11709 | r_symndx = ELF64_R_SYM (rel->r_info); |
| 11710 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, r_symndx, | |
| 11711 | isec->owner)) | |
| 4c52953f | 11712 | { |
| 70cc837d AM |
11713 | ret = -1; |
| 11714 | break; | |
| 11715 | } | |
| 4c52953f | 11716 | |
| 70cc837d AM |
11717 | /* Calls to dynamic lib functions go through a plt call stub |
| 11718 | that uses r2. */ | |
| 11719 | eh = (struct ppc_link_hash_entry *) h; | |
| 11720 | if (eh != NULL | |
| 11721 | && (eh->elf.plt.plist != NULL | |
| 11722 | || (eh->oh != NULL | |
| 11723 | && ppc_follow_link (eh->oh)->elf.plt.plist != NULL))) | |
| 11724 | { | |
| 11725 | ret = 1; | |
| 11726 | break; | |
| 4c52953f AM |
11727 | } |
| 11728 | ||
| 70cc837d AM |
11729 | if (sym_sec == NULL) |
| 11730 | /* Ignore other undefined symbols. */ | |
| 4c52953f | 11731 | continue; |
| 4c52953f | 11732 | |
| 70cc837d AM |
11733 | /* Assume branches to other sections not included in the |
| 11734 | link need stubs too, to cover -R and absolute syms. */ | |
| 11735 | if (sym_sec->output_section == NULL) | |
| 11736 | { | |
| 11737 | ret = 1; | |
| 11738 | break; | |
| 11739 | } | |
| 4c52953f | 11740 | |
| 70cc837d AM |
11741 | if (h == NULL) |
| 11742 | sym_value = sym->st_value; | |
| 11743 | else | |
| 11744 | { | |
| 11745 | if (h->root.type != bfd_link_hash_defined | |
| 11746 | && h->root.type != bfd_link_hash_defweak) | |
| 11747 | abort (); | |
| 11748 | sym_value = h->root.u.def.value; | |
| 11749 | } | |
| 11750 | sym_value += rel->r_addend; | |
| 4c52953f | 11751 | |
| 70cc837d AM |
11752 | /* If this branch reloc uses an opd sym, find the code section. */ |
| 11753 | opd = get_opd_info (sym_sec); | |
| 11754 | if (opd != NULL) | |
| 11755 | { | |
| 11756 | if (h == NULL && opd->adjust != NULL) | |
| 11757 | { | |
| 11758 | long adjust; | |
| 4c52953f | 11759 | |
| 92a9c616 | 11760 | adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 70cc837d AM |
11761 | if (adjust == -1) |
| 11762 | /* Assume deleted functions won't ever be called. */ | |
| 11763 | continue; | |
| 11764 | sym_value += adjust; | |
| 11765 | } | |
| 4c52953f | 11766 | |
| aef36ac1 AM |
11767 | dest = opd_entry_value (sym_sec, sym_value, |
| 11768 | &sym_sec, NULL, FALSE); | |
| 70cc837d AM |
11769 | if (dest == (bfd_vma) -1) |
| 11770 | continue; | |
| 11771 | } | |
| 11772 | else | |
| 11773 | dest = (sym_value | |
| 11774 | + sym_sec->output_offset | |
| 11775 | + sym_sec->output_section->vma); | |
| 4c52953f | 11776 | |
| 70cc837d AM |
11777 | /* Ignore branch to self. */ |
| 11778 | if (sym_sec == isec) | |
| 11779 | continue; | |
| 4c52953f | 11780 | |
| 70cc837d AM |
11781 | /* If the called function uses the toc, we need a stub. */ |
| 11782 | if (sym_sec->has_toc_reloc | |
| 11783 | || sym_sec->makes_toc_func_call) | |
| 4c52953f | 11784 | { |
| 70cc837d | 11785 | ret = 1; |
| 4c52953f AM |
11786 | break; |
| 11787 | } | |
| 70cc837d AM |
11788 | |
| 11789 | /* Assume any branch that needs a long branch stub might in fact | |
| 11790 | need a plt_branch stub. A plt_branch stub uses r2. */ | |
| 11791 | else if (dest - (isec->output_offset | |
| 11792 | + isec->output_section->vma | |
| 6911b7dc AM |
11793 | + rel->r_offset) + (1 << 25) |
| 11794 | >= (2u << 25) - PPC64_LOCAL_ENTRY_OFFSET (h | |
| 11795 | ? h->other | |
| 11796 | : sym->st_other)) | |
| 4c52953f | 11797 | { |
| 70cc837d AM |
11798 | ret = 1; |
| 11799 | break; | |
| 11800 | } | |
| 11801 | ||
| 11802 | /* If calling back to a section in the process of being | |
| 11803 | tested, we can't say for sure that no toc adjusting stubs | |
| 11804 | are needed, so don't return zero. */ | |
| 11805 | else if (sym_sec->call_check_in_progress) | |
| 11806 | ret = 2; | |
| 11807 | ||
| 11808 | /* Branches to another section that itself doesn't have any TOC | |
| 11809 | references are OK. Recursively call ourselves to check. */ | |
| 11810 | else if (!sym_sec->call_check_done) | |
| 11811 | { | |
| 11812 | int recur; | |
| 11813 | ||
| 11814 | /* Mark current section as indeterminate, so that other | |
| 11815 | sections that call back to current won't be marked as | |
| 11816 | known. */ | |
| 11817 | isec->call_check_in_progress = 1; | |
| 11818 | recur = toc_adjusting_stub_needed (info, sym_sec); | |
| 11819 | isec->call_check_in_progress = 0; | |
| 11820 | ||
| 4c52953f AM |
11821 | if (recur != 0) |
| 11822 | { | |
| 70cc837d AM |
11823 | ret = recur; |
| 11824 | if (recur != 2) | |
| 11825 | break; | |
| 4c52953f AM |
11826 | } |
| 11827 | } | |
| 4c52953f | 11828 | } |
| 70cc837d AM |
11829 | |
| 11830 | if (local_syms != NULL | |
| 11831 | && (elf_symtab_hdr (isec->owner).contents | |
| 11832 | != (unsigned char *) local_syms)) | |
| 11833 | free (local_syms); | |
| 11834 | if (elf_section_data (isec)->relocs != relstart) | |
| 11835 | free (relstart); | |
| 9b5ecbd0 AM |
11836 | } |
| 11837 | ||
| 70cc837d AM |
11838 | if ((ret & 1) == 0 |
| 11839 | && isec->map_head.s != NULL | |
| 11840 | && (strcmp (isec->output_section->name, ".init") == 0 | |
| 11841 | || strcmp (isec->output_section->name, ".fini") == 0)) | |
| 11842 | { | |
| 11843 | if (isec->map_head.s->has_toc_reloc | |
| 11844 | || isec->map_head.s->makes_toc_func_call) | |
| 11845 | ret = 1; | |
| 11846 | else if (!isec->map_head.s->call_check_done) | |
| 11847 | { | |
| 11848 | int recur; | |
| 11849 | isec->call_check_in_progress = 1; | |
| 11850 | recur = toc_adjusting_stub_needed (info, isec->map_head.s); | |
| 11851 | isec->call_check_in_progress = 0; | |
| 11852 | if (recur != 0) | |
| 11853 | ret = recur; | |
| 11854 | } | |
| 11855 | } | |
| 11856 | ||
| 11857 | if (ret == 1) | |
| 11858 | isec->makes_toc_func_call = 1; | |
| 4c52953f | 11859 | |
| 9b5ecbd0 AM |
11860 | return ret; |
| 11861 | } | |
| 11862 | ||
| 721956f4 AM |
11863 | /* The linker repeatedly calls this function for each input section, |
| 11864 | in the order that input sections are linked into output sections. | |
| 11865 | Build lists of input sections to determine groupings between which | |
| 11866 | we may insert linker stubs. */ | |
| 11867 | ||
| 9b5ecbd0 | 11868 | bfd_boolean |
| 4ce794b7 | 11869 | ppc64_elf_next_input_section (struct bfd_link_info *info, asection *isec) |
| 721956f4 AM |
11870 | { |
| 11871 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11872 | ||
| 4dfe6ac6 NC |
11873 | if (htab == NULL) |
| 11874 | return FALSE; | |
| 11875 | ||
| 734b6cf9 | 11876 | if ((isec->output_section->flags & SEC_CODE) != 0 |
| 6f20ed8a | 11877 | && isec->output_section->id < htab->sec_info_arr_size) |
| 721956f4 | 11878 | { |
| 3d6f9012 AM |
11879 | /* This happens to make the list in reverse order, |
| 11880 | which is what we want. */ | |
| 6f20ed8a AM |
11881 | htab->sec_info[isec->id].u.list |
| 11882 | = htab->sec_info[isec->output_section->id].u.list; | |
| 11883 | htab->sec_info[isec->output_section->id].u.list = isec; | |
| 721956f4 | 11884 | } |
| ad8e1ba5 | 11885 | |
| 4c52953f | 11886 | if (htab->multi_toc_needed) |
| 9b5ecbd0 | 11887 | { |
| 8b974ba3 AM |
11888 | /* Analyse sections that aren't already flagged as needing a |
| 11889 | valid toc pointer. Exclude .fixup for the linux kernel. | |
| 11890 | .fixup contains branches, but only back to the function that | |
| 11891 | hit an exception. */ | |
| 11892 | if (!(isec->has_toc_reloc | |
| 11893 | || (isec->flags & SEC_CODE) == 0 | |
| 11894 | || strcmp (isec->name, ".fixup") == 0 | |
| 11895 | || isec->call_check_done)) | |
| 11896 | { | |
| 11897 | if (toc_adjusting_stub_needed (info, isec) < 0) | |
| 6683a28d | 11898 | return FALSE; |
| 8b974ba3 AM |
11899 | } |
| 11900 | /* Make all sections use the TOC assigned for this object file. | |
| 11901 | This will be wrong for pasted sections; We fix that in | |
| 11902 | check_pasted_section(). */ | |
| 11903 | if (elf_gp (isec->owner) != 0) | |
| 11904 | htab->toc_curr = elf_gp (isec->owner); | |
| 11905 | } | |
| 11906 | ||
| 6f20ed8a | 11907 | htab->sec_info[isec->id].toc_off = htab->toc_curr; |
| 9b5ecbd0 | 11908 | return TRUE; |
| 721956f4 AM |
11909 | } |
| 11910 | ||
| 70cc837d AM |
11911 | /* Check that all .init and .fini sections use the same toc, if they |
| 11912 | have toc relocs. */ | |
| 11913 | ||
| 11914 | static bfd_boolean | |
| 11915 | check_pasted_section (struct bfd_link_info *info, const char *name) | |
| 11916 | { | |
| 11917 | asection *o = bfd_get_section_by_name (info->output_bfd, name); | |
| 11918 | ||
| 11919 | if (o != NULL) | |
| 11920 | { | |
| 11921 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 11922 | bfd_vma toc_off = 0; | |
| 11923 | asection *i; | |
| 11924 | ||
| 11925 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11926 | if (i->has_toc_reloc) | |
| 11927 | { | |
| 11928 | if (toc_off == 0) | |
| 6f20ed8a AM |
11929 | toc_off = htab->sec_info[i->id].toc_off; |
| 11930 | else if (toc_off != htab->sec_info[i->id].toc_off) | |
| 70cc837d AM |
11931 | return FALSE; |
| 11932 | } | |
| 6683a28d AM |
11933 | |
| 11934 | if (toc_off == 0) | |
| 11935 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 11936 | if (i->makes_toc_func_call) | |
| 11937 | { | |
| 6f20ed8a | 11938 | toc_off = htab->sec_info[i->id].toc_off; |
| 6683a28d AM |
11939 | break; |
| 11940 | } | |
| 11941 | ||
| 70cc837d AM |
11942 | /* Make sure the whole pasted function uses the same toc offset. */ |
| 11943 | if (toc_off != 0) | |
| 11944 | for (i = o->map_head.s; i != NULL; i = i->map_head.s) | |
| 6f20ed8a | 11945 | htab->sec_info[i->id].toc_off = toc_off; |
| 70cc837d AM |
11946 | } |
| 11947 | return TRUE; | |
| 11948 | } | |
| 11949 | ||
| 11950 | bfd_boolean | |
| 11951 | ppc64_elf_check_init_fini (struct bfd_link_info *info) | |
| 11952 | { | |
| 11953 | return (check_pasted_section (info, ".init") | |
| 11954 | & check_pasted_section (info, ".fini")); | |
| 11955 | } | |
| 11956 | ||
| 721956f4 AM |
11957 | /* See whether we can group stub sections together. Grouping stub |
| 11958 | sections may result in fewer stubs. More importantly, we need to | |
| 11959 | put all .init* and .fini* stubs at the beginning of the .init or | |
| 11960 | .fini output sections respectively, because glibc splits the | |
| 11961 | _init and _fini functions into multiple parts. Putting a stub in | |
| 11962 | the middle of a function is not a good idea. */ | |
| 11963 | ||
| 6f20ed8a AM |
11964 | static bfd_boolean |
| 11965 | group_sections (struct bfd_link_info *info, | |
| 4ce794b7 AM |
11966 | bfd_size_type stub_group_size, |
| 11967 | bfd_boolean stubs_always_before_branch) | |
| 721956f4 | 11968 | { |
| 6f20ed8a AM |
11969 | struct ppc_link_hash_table *htab; |
| 11970 | asection *osec; | |
| 7c8fe5c4 AM |
11971 | bfd_size_type stub14_group_size; |
| 11972 | bfd_boolean suppress_size_errors; | |
| 11973 | ||
| 6f20ed8a AM |
11974 | htab = ppc_hash_table (info); |
| 11975 | if (htab == NULL) | |
| 11976 | return FALSE; | |
| 11977 | ||
| 7c8fe5c4 | 11978 | suppress_size_errors = FALSE; |
| 0cfb0717 | 11979 | stub14_group_size = stub_group_size >> 10; |
| 7c8fe5c4 AM |
11980 | if (stub_group_size == 1) |
| 11981 | { | |
| 11982 | /* Default values. */ | |
| 11983 | if (stubs_always_before_branch) | |
| 11984 | { | |
| 11985 | stub_group_size = 0x1e00000; | |
| 11986 | stub14_group_size = 0x7800; | |
| 11987 | } | |
| 11988 | else | |
| 11989 | { | |
| 11990 | stub_group_size = 0x1c00000; | |
| 11991 | stub14_group_size = 0x7000; | |
| 11992 | } | |
| 11993 | suppress_size_errors = TRUE; | |
| 11994 | } | |
| 11995 | ||
| 6f20ed8a | 11996 | for (osec = info->output_bfd->sections; osec != NULL; osec = osec->next) |
| 721956f4 | 11997 | { |
| 6f20ed8a AM |
11998 | asection *tail; |
| 11999 | ||
| 12000 | if (osec->id >= htab->sec_info_arr_size) | |
| 12001 | continue; | |
| 12002 | ||
| 12003 | tail = htab->sec_info[osec->id].u.list; | |
| 734b6cf9 | 12004 | while (tail != NULL) |
| 721956f4 | 12005 | { |
| 734b6cf9 AM |
12006 | asection *curr; |
| 12007 | asection *prev; | |
| 12008 | bfd_size_type total; | |
| 12009 | bfd_boolean big_sec; | |
| 12010 | bfd_vma curr_toc; | |
| 6f20ed8a | 12011 | struct map_stub *group; |
| 734b6cf9 AM |
12012 | |
| 12013 | curr = tail; | |
| eea6121a | 12014 | total = tail->size; |
| 6bee8834 AM |
12015 | big_sec = total > (ppc64_elf_section_data (tail) != NULL |
| 12016 | && ppc64_elf_section_data (tail)->has_14bit_branch | |
| 7c8fe5c4 AM |
12017 | ? stub14_group_size : stub_group_size); |
| 12018 | if (big_sec && !suppress_size_errors) | |
| 5c3dead3 AM |
12019 | (*_bfd_error_handler) (_("%B section %A exceeds stub group size"), |
| 12020 | tail->owner, tail); | |
| 6f20ed8a | 12021 | curr_toc = htab->sec_info[tail->id].toc_off; |
| 734b6cf9 | 12022 | |
| 6f20ed8a | 12023 | while ((prev = htab->sec_info[curr->id].u.list) != NULL |
| 734b6cf9 | 12024 | && ((total += curr->output_offset - prev->output_offset) |
| 6bee8834 AM |
12025 | < (ppc64_elf_section_data (prev) != NULL |
| 12026 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 12027 | ? stub14_group_size : stub_group_size)) |
| 6f20ed8a | 12028 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12029 | curr = prev; |
| 12030 | ||
| 12031 | /* OK, the size from the start of CURR to the end is less | |
| 12032 | than stub_group_size and thus can be handled by one stub | |
| 12033 | section. (or the tail section is itself larger than | |
| 12034 | stub_group_size, in which case we may be toast.) We | |
| 12035 | should really be keeping track of the total size of stubs | |
| 12036 | added here, as stubs contribute to the final output | |
| 12037 | section size. That's a little tricky, and this way will | |
| 12038 | only break if stubs added make the total size more than | |
| 12039 | 2^25, ie. for the default stub_group_size, if stubs total | |
| 12040 | more than 2097152 bytes, or nearly 75000 plt call stubs. */ | |
| 6f20ed8a AM |
12041 | group = bfd_alloc (curr->owner, sizeof (*group)); |
| 12042 | if (group == NULL) | |
| 12043 | return FALSE; | |
| 12044 | group->link_sec = curr; | |
| 12045 | group->stub_sec = NULL; | |
| a4b6fadd AM |
12046 | group->needs_save_res = 0; |
| 12047 | group->next = htab->group; | |
| 12048 | htab->group = group; | |
| 734b6cf9 | 12049 | do |
| 721956f4 | 12050 | { |
| 6f20ed8a | 12051 | prev = htab->sec_info[tail->id].u.list; |
| 734b6cf9 | 12052 | /* Set up this stub group. */ |
| 6f20ed8a | 12053 | htab->sec_info[tail->id].u.group = group; |
| 721956f4 | 12054 | } |
| 734b6cf9 AM |
12055 | while (tail != curr && (tail = prev) != NULL); |
| 12056 | ||
| 12057 | /* But wait, there's more! Input sections up to stub_group_size | |
| 12058 | bytes before the stub section can be handled by it too. | |
| 12059 | Don't do this if we have a really large section after the | |
| 12060 | stubs, as adding more stubs increases the chance that | |
| 12061 | branches may not reach into the stub section. */ | |
| 12062 | if (!stubs_always_before_branch && !big_sec) | |
| 12063 | { | |
| 12064 | total = 0; | |
| 12065 | while (prev != NULL | |
| 12066 | && ((total += tail->output_offset - prev->output_offset) | |
| 6bee8834 AM |
12067 | < (ppc64_elf_section_data (prev) != NULL |
| 12068 | && ppc64_elf_section_data (prev)->has_14bit_branch | |
| 7c8fe5c4 | 12069 | ? stub14_group_size : stub_group_size)) |
| 6f20ed8a | 12070 | && htab->sec_info[prev->id].toc_off == curr_toc) |
| 734b6cf9 AM |
12071 | { |
| 12072 | tail = prev; | |
| 6f20ed8a AM |
12073 | prev = htab->sec_info[tail->id].u.list; |
| 12074 | htab->sec_info[tail->id].u.group = group; | |
| 734b6cf9 AM |
12075 | } |
| 12076 | } | |
| 12077 | tail = prev; | |
| 721956f4 AM |
12078 | } |
| 12079 | } | |
| 6f20ed8a | 12080 | return TRUE; |
| 721956f4 AM |
12081 | } |
| 12082 | ||
| 58d180e8 AM |
12083 | static const unsigned char glink_eh_frame_cie[] = |
| 12084 | { | |
| 12085 | 0, 0, 0, 16, /* length. */ | |
| 12086 | 0, 0, 0, 0, /* id. */ | |
| 12087 | 1, /* CIE version. */ | |
| 12088 | 'z', 'R', 0, /* Augmentation string. */ | |
| 12089 | 4, /* Code alignment. */ | |
| 12090 | 0x78, /* Data alignment. */ | |
| 12091 | 65, /* RA reg. */ | |
| 12092 | 1, /* Augmentation size. */ | |
| 12093 | DW_EH_PE_pcrel | DW_EH_PE_sdata4, /* FDE encoding. */ | |
| da44f4e5 AM |
12094 | DW_CFA_def_cfa, 1, 0, /* def_cfa: r1 offset 0. */ |
| 12095 | 0, 0, 0, 0 | |
| 58d180e8 AM |
12096 | }; |
| 12097 | ||
| d969d15f AM |
12098 | /* Stripping output sections is normally done before dynamic section |
| 12099 | symbols have been allocated. This function is called later, and | |
| 12100 | handles cases like htab->brlt which is mapped to its own output | |
| 12101 | section. */ | |
| 12102 | ||
| 12103 | static void | |
| 12104 | maybe_strip_output (struct bfd_link_info *info, asection *isec) | |
| 12105 | { | |
| 12106 | if (isec->size == 0 | |
| 12107 | && isec->output_section->size == 0 | |
| 53d8967a | 12108 | && !(isec->output_section->flags & SEC_KEEP) |
| d969d15f AM |
12109 | && !bfd_section_removed_from_list (info->output_bfd, |
| 12110 | isec->output_section) | |
| 12111 | && elf_section_data (isec->output_section)->dynindx == 0) | |
| 12112 | { | |
| 12113 | isec->output_section->flags |= SEC_EXCLUDE; | |
| 12114 | bfd_section_list_remove (info->output_bfd, isec->output_section); | |
| 12115 | info->output_bfd->section_count--; | |
| 12116 | } | |
| 12117 | } | |
| 12118 | ||
| 721956f4 AM |
12119 | /* Determine and set the size of the stub section for a final link. |
| 12120 | ||
| 12121 | The basic idea here is to examine all the relocations looking for | |
| 12122 | PC-relative calls to a target that is unreachable with a "bl" | |
| 12123 | instruction. */ | |
| 12124 | ||
| b34976b6 | 12125 | bfd_boolean |
| e7d1c40c | 12126 | ppc64_elf_size_stubs (struct bfd_link_info *info) |
| 721956f4 AM |
12127 | { |
| 12128 | bfd_size_type stub_group_size; | |
| b34976b6 | 12129 | bfd_boolean stubs_always_before_branch; |
| 721956f4 AM |
12130 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 12131 | ||
| 4dfe6ac6 NC |
12132 | if (htab == NULL) |
| 12133 | return FALSE; | |
| 12134 | ||
| 0e1862bb | 12135 | if (htab->params->plt_thread_safe == -1 && !bfd_link_executable (info)) |
| e7d1c40c | 12136 | htab->params->plt_thread_safe = 1; |
| b9e5796b | 12137 | if (!htab->opd_abi) |
| e7d1c40c AM |
12138 | htab->params->plt_thread_safe = 0; |
| 12139 | else if (htab->params->plt_thread_safe == -1) | |
| 794e51c0 | 12140 | { |
| e2458743 | 12141 | static const char *const thread_starter[] = |
| 794e51c0 AM |
12142 | { |
| 12143 | "pthread_create", | |
| 12144 | /* libstdc++ */ | |
| 12145 | "_ZNSt6thread15_M_start_threadESt10shared_ptrINS_10_Impl_baseEE", | |
| 12146 | /* librt */ | |
| 12147 | "aio_init", "aio_read", "aio_write", "aio_fsync", "lio_listio", | |
| 12148 | "mq_notify", "create_timer", | |
| 12149 | /* libanl */ | |
| 12150 | "getaddrinfo_a", | |
| 12151 | /* libgomp */ | |
| 2300b5a1 | 12152 | "GOMP_parallel", |
| 794e51c0 | 12153 | "GOMP_parallel_start", |
| 2300b5a1 | 12154 | "GOMP_parallel_loop_static", |
| 794e51c0 | 12155 | "GOMP_parallel_loop_static_start", |
| 2300b5a1 | 12156 | "GOMP_parallel_loop_dynamic", |
| 794e51c0 | 12157 | "GOMP_parallel_loop_dynamic_start", |
| 2300b5a1 | 12158 | "GOMP_parallel_loop_guided", |
| 794e51c0 | 12159 | "GOMP_parallel_loop_guided_start", |
| 2300b5a1 | 12160 | "GOMP_parallel_loop_runtime", |
| 794e51c0 | 12161 | "GOMP_parallel_loop_runtime_start", |
| 2300b5a1 | 12162 | "GOMP_parallel_sections", |
| 68ffbac6 | 12163 | "GOMP_parallel_sections_start", |
| f9dffbf0 AM |
12164 | /* libgo */ |
| 12165 | "__go_go", | |
| 794e51c0 AM |
12166 | }; |
| 12167 | unsigned i; | |
| 12168 | ||
| a4b6fadd | 12169 | for (i = 0; i < ARRAY_SIZE (thread_starter); i++) |
| 794e51c0 AM |
12170 | { |
| 12171 | struct elf_link_hash_entry *h; | |
| 12172 | h = elf_link_hash_lookup (&htab->elf, thread_starter[i], | |
| 12173 | FALSE, FALSE, TRUE); | |
| e7d1c40c AM |
12174 | htab->params->plt_thread_safe = h != NULL && h->ref_regular; |
| 12175 | if (htab->params->plt_thread_safe) | |
| 794e51c0 AM |
12176 | break; |
| 12177 | } | |
| 12178 | } | |
| e7d1c40c AM |
12179 | stubs_always_before_branch = htab->params->group_size < 0; |
| 12180 | if (htab->params->group_size < 0) | |
| 12181 | stub_group_size = -htab->params->group_size; | |
| 721956f4 | 12182 | else |
| e7d1c40c | 12183 | stub_group_size = htab->params->group_size; |
| 721956f4 | 12184 | |
| 6f20ed8a AM |
12185 | if (!group_sections (info, stub_group_size, stubs_always_before_branch)) |
| 12186 | return FALSE; | |
| 721956f4 | 12187 | |
| c9301e31 AM |
12188 | #define STUB_SHRINK_ITER 20 |
| 12189 | /* Loop until no stubs added. After iteration 20 of this loop we may | |
| 12190 | exit on a stub section shrinking. This is to break out of a | |
| 12191 | pathological case where adding stubs on one iteration decreases | |
| 12192 | section gaps (perhaps due to alignment), which then requires | |
| 12193 | fewer or smaller stubs on the next iteration. */ | |
| 12194 | ||
| 721956f4 AM |
12195 | while (1) |
| 12196 | { | |
| 12197 | bfd *input_bfd; | |
| 12198 | unsigned int bfd_indx; | |
| a4b6fadd | 12199 | struct map_stub *group; |
| 721956f4 | 12200 | asection *stub_sec; |
| 721956f4 AM |
12201 | |
| 12202 | htab->stub_iteration += 1; | |
| 721956f4 AM |
12203 | |
| 12204 | for (input_bfd = info->input_bfds, bfd_indx = 0; | |
| 12205 | input_bfd != NULL; | |
| c72f2fb2 | 12206 | input_bfd = input_bfd->link.next, bfd_indx++) |
| 721956f4 AM |
12207 | { |
| 12208 | Elf_Internal_Shdr *symtab_hdr; | |
| 12209 | asection *section; | |
| 6cdc0ccc | 12210 | Elf_Internal_Sym *local_syms = NULL; |
| 721956f4 | 12211 | |
| 0c8d6e5c | 12212 | if (!is_ppc64_elf (input_bfd)) |
| 67f93c31 AM |
12213 | continue; |
| 12214 | ||
| 721956f4 | 12215 | /* We'll need the symbol table in a second. */ |
| 0ffa91dd | 12216 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 721956f4 AM |
12217 | if (symtab_hdr->sh_info == 0) |
| 12218 | continue; | |
| 12219 | ||
| 721956f4 AM |
12220 | /* Walk over each section attached to the input bfd. */ |
| 12221 | for (section = input_bfd->sections; | |
| 12222 | section != NULL; | |
| 12223 | section = section->next) | |
| 12224 | { | |
| 721956f4 | 12225 | Elf_Internal_Rela *internal_relocs, *irelaend, *irela; |
| 721956f4 AM |
12226 | |
| 12227 | /* If there aren't any relocs, then there's nothing more | |
| 12228 | to do. */ | |
| 12229 | if ((section->flags & SEC_RELOC) == 0 | |
| 12c0f757 AM |
12230 | || (section->flags & SEC_ALLOC) == 0 |
| 12231 | || (section->flags & SEC_LOAD) == 0 | |
| 12232 | || (section->flags & SEC_CODE) == 0 | |
| 721956f4 AM |
12233 | || section->reloc_count == 0) |
| 12234 | continue; | |
| 12235 | ||
| 12236 | /* If this section is a link-once section that will be | |
| 12237 | discarded, then don't create any stubs. */ | |
| 12238 | if (section->output_section == NULL | |
| 927be08e | 12239 | || section->output_section->owner != info->output_bfd) |
| 721956f4 AM |
12240 | continue; |
| 12241 | ||
| 1e2f5b6e AM |
12242 | /* Get the relocs. */ |
| 12243 | internal_relocs | |
| 4ce794b7 | 12244 | = _bfd_elf_link_read_relocs (input_bfd, section, NULL, NULL, |
| 45d6a902 | 12245 | info->keep_memory); |
| 721956f4 | 12246 | if (internal_relocs == NULL) |
| 1e2f5b6e | 12247 | goto error_ret_free_local; |
| 721956f4 AM |
12248 | |
| 12249 | /* Now examine each relocation. */ | |
| 12250 | irela = internal_relocs; | |
| 12251 | irelaend = irela + section->reloc_count; | |
| 12252 | for (; irela < irelaend; irela++) | |
| 12253 | { | |
| 4ce794b7 AM |
12254 | enum elf_ppc64_reloc_type r_type; |
| 12255 | unsigned int r_indx; | |
| 721956f4 AM |
12256 | enum ppc_stub_type stub_type; |
| 12257 | struct ppc_stub_hash_entry *stub_entry; | |
| 8387904d | 12258 | asection *sym_sec, *code_sec; |
| e054468f | 12259 | bfd_vma sym_value, code_value; |
| 721956f4 | 12260 | bfd_vma destination; |
| 6911b7dc | 12261 | unsigned long local_off; |
| 8843416a | 12262 | bfd_boolean ok_dest; |
| 721956f4 | 12263 | struct ppc_link_hash_entry *hash; |
| 8387904d | 12264 | struct ppc_link_hash_entry *fdh; |
| 411e1bfb AM |
12265 | struct elf_link_hash_entry *h; |
| 12266 | Elf_Internal_Sym *sym; | |
| 721956f4 AM |
12267 | char *stub_name; |
| 12268 | const asection *id_sec; | |
| 74f0fb50 | 12269 | struct _opd_sec_data *opd; |
| e054468f | 12270 | struct plt_entry *plt_ent; |
| 721956f4 AM |
12271 | |
| 12272 | r_type = ELF64_R_TYPE (irela->r_info); | |
| 12273 | r_indx = ELF64_R_SYM (irela->r_info); | |
| 12274 | ||
| 4ce794b7 | 12275 | if (r_type >= R_PPC64_max) |
| 721956f4 AM |
12276 | { |
| 12277 | bfd_set_error (bfd_error_bad_value); | |
| 6cdc0ccc | 12278 | goto error_ret_free_internal; |
| 721956f4 AM |
12279 | } |
| 12280 | ||
| 12281 | /* Only look for stubs on branch instructions. */ | |
| 4ce794b7 AM |
12282 | if (r_type != R_PPC64_REL24 |
| 12283 | && r_type != R_PPC64_REL14 | |
| 12284 | && r_type != R_PPC64_REL14_BRTAKEN | |
| 12285 | && r_type != R_PPC64_REL14_BRNTAKEN) | |
| 721956f4 AM |
12286 | continue; |
| 12287 | ||
| 12288 | /* Now determine the call target, its name, value, | |
| 12289 | section. */ | |
| 411e1bfb AM |
12290 | if (!get_sym_h (&h, &sym, &sym_sec, NULL, &local_syms, |
| 12291 | r_indx, input_bfd)) | |
| 12292 | goto error_ret_free_internal; | |
| 12293 | hash = (struct ppc_link_hash_entry *) h; | |
| 12294 | ||
| 8843416a | 12295 | ok_dest = FALSE; |
| 8387904d | 12296 | fdh = NULL; |
| 7fe2b9a6 | 12297 | sym_value = 0; |
| 411e1bfb | 12298 | if (hash == NULL) |
| 721956f4 | 12299 | { |
| 411e1bfb | 12300 | sym_value = sym->st_value; |
| c27b8c2a AM |
12301 | if (sym_sec != NULL |
| 12302 | && sym_sec->output_section != NULL) | |
| 12303 | ok_dest = TRUE; | |
| 721956f4 | 12304 | } |
| 7fe2b9a6 AM |
12305 | else if (hash->elf.root.type == bfd_link_hash_defined |
| 12306 | || hash->elf.root.type == bfd_link_hash_defweak) | |
| 12307 | { | |
| 12308 | sym_value = hash->elf.root.u.def.value; | |
| 12309 | if (sym_sec->output_section != NULL) | |
| 12310 | ok_dest = TRUE; | |
| 12311 | } | |
| 12312 | else if (hash->elf.root.type == bfd_link_hash_undefweak | |
| 12313 | || hash->elf.root.type == bfd_link_hash_undefined) | |
| 721956f4 | 12314 | { |
| 99877b66 | 12315 | /* Recognise an old ABI func code entry sym, and |
| 7fe2b9a6 AM |
12316 | use the func descriptor sym instead if it is |
| 12317 | defined. */ | |
| ceb1f1ef | 12318 | if (hash->elf.root.root.string[0] == '.' |
| b31867b6 | 12319 | && (fdh = lookup_fdh (hash, htab)) != NULL) |
| 8387904d | 12320 | { |
| 8387904d AM |
12321 | if (fdh->elf.root.type == bfd_link_hash_defined |
| 12322 | || fdh->elf.root.type == bfd_link_hash_defweak) | |
| 12323 | { | |
| 12324 | sym_sec = fdh->elf.root.u.def.section; | |
| 12325 | sym_value = fdh->elf.root.u.def.value; | |
| 12326 | if (sym_sec->output_section != NULL) | |
| 12327 | ok_dest = TRUE; | |
| 12328 | } | |
| 99877b66 AM |
12329 | else |
| 12330 | fdh = NULL; | |
| 8387904d | 12331 | } |
| 7fe2b9a6 AM |
12332 | } |
| 12333 | else | |
| 12334 | { | |
| 12335 | bfd_set_error (bfd_error_bad_value); | |
| 12336 | goto error_ret_free_internal; | |
| 721956f4 AM |
12337 | } |
| 12338 | ||
| 8843416a | 12339 | destination = 0; |
| 6911b7dc | 12340 | local_off = 0; |
| 8843416a AM |
12341 | if (ok_dest) |
| 12342 | { | |
| 12343 | sym_value += irela->r_addend; | |
| 12344 | destination = (sym_value | |
| 12345 | + sym_sec->output_offset | |
| 12346 | + sym_sec->output_section->vma); | |
| 6911b7dc AM |
12347 | local_off = PPC64_LOCAL_ENTRY_OFFSET (hash |
| 12348 | ? hash->elf.other | |
| 12349 | : sym->st_other); | |
| 8843416a AM |
12350 | } |
| 12351 | ||
| 8387904d | 12352 | code_sec = sym_sec; |
| e054468f | 12353 | code_value = sym_value; |
| 74f0fb50 AM |
12354 | opd = get_opd_info (sym_sec); |
| 12355 | if (opd != NULL) | |
| 8387904d AM |
12356 | { |
| 12357 | bfd_vma dest; | |
| 12358 | ||
| 74f0fb50 | 12359 | if (hash == NULL && opd->adjust != NULL) |
| 8387904d | 12360 | { |
| 51aecdc5 | 12361 | long adjust = opd->adjust[OPD_NDX (sym_value)]; |
| 8387904d AM |
12362 | if (adjust == -1) |
| 12363 | continue; | |
| e054468f | 12364 | code_value += adjust; |
| 8387904d AM |
12365 | sym_value += adjust; |
| 12366 | } | |
| 12367 | dest = opd_entry_value (sym_sec, sym_value, | |
| aef36ac1 | 12368 | &code_sec, &code_value, FALSE); |
| 8387904d AM |
12369 | if (dest != (bfd_vma) -1) |
| 12370 | { | |
| 12371 | destination = dest; | |
| 12372 | if (fdh != NULL) | |
| 12373 | { | |
| 12374 | /* Fixup old ABI sym to point at code | |
| 12375 | entry. */ | |
| 99877b66 | 12376 | hash->elf.root.type = bfd_link_hash_defweak; |
| 8387904d | 12377 | hash->elf.root.u.def.section = code_sec; |
| e054468f | 12378 | hash->elf.root.u.def.value = code_value; |
| 8387904d AM |
12379 | } |
| 12380 | } | |
| 12381 | } | |
| 12382 | ||
| 721956f4 | 12383 | /* Determine what (if any) linker stub is needed. */ |
| e054468f | 12384 | plt_ent = NULL; |
| 721956f4 | 12385 | stub_type = ppc_type_of_stub (section, irela, &hash, |
| 6911b7dc AM |
12386 | &plt_ent, destination, |
| 12387 | local_off); | |
| ad8e1ba5 AM |
12388 | |
| 12389 | if (stub_type != ppc_stub_plt_call) | |
| 12390 | { | |
| 12391 | /* Check whether we need a TOC adjusting stub. | |
| 12392 | Since the linker pastes together pieces from | |
| 12393 | different object files when creating the | |
| 12394 | _init and _fini functions, it may be that a | |
| 12395 | call to what looks like a local sym is in | |
| 12396 | fact a call needing a TOC adjustment. */ | |
| 8387904d AM |
12397 | if (code_sec != NULL |
| 12398 | && code_sec->output_section != NULL | |
| 6f20ed8a AM |
12399 | && (htab->sec_info[code_sec->id].toc_off |
| 12400 | != htab->sec_info[section->id].toc_off) | |
| 4c52953f AM |
12401 | && (code_sec->has_toc_reloc |
| 12402 | || code_sec->makes_toc_func_call)) | |
| ad8e1ba5 AM |
12403 | stub_type = ppc_stub_long_branch_r2off; |
| 12404 | } | |
| 12405 | ||
| 721956f4 AM |
12406 | if (stub_type == ppc_stub_none) |
| 12407 | continue; | |
| 12408 | ||
| 411e1bfb AM |
12409 | /* __tls_get_addr calls might be eliminated. */ |
| 12410 | if (stub_type != ppc_stub_plt_call | |
| 12411 | && hash != NULL | |
| 8387904d AM |
12412 | && (hash == htab->tls_get_addr |
| 12413 | || hash == htab->tls_get_addr_fd) | |
| 411e1bfb AM |
12414 | && section->has_tls_reloc |
| 12415 | && irela != internal_relocs) | |
| 12416 | { | |
| 12417 | /* Get tls info. */ | |
| f961d9dd | 12418 | unsigned char *tls_mask; |
| 411e1bfb | 12419 | |
| 3a71aa26 | 12420 | if (!get_tls_mask (&tls_mask, NULL, NULL, &local_syms, |
| 411e1bfb AM |
12421 | irela - 1, input_bfd)) |
| 12422 | goto error_ret_free_internal; | |
| e7b938ca | 12423 | if (*tls_mask != 0) |
| 411e1bfb AM |
12424 | continue; |
| 12425 | } | |
| 12426 | ||
| 3b421ab3 AM |
12427 | if (stub_type == ppc_stub_plt_call |
| 12428 | && irela + 1 < irelaend | |
| 12429 | && irela[1].r_offset == irela->r_offset + 4 | |
| 794e51c0 AM |
12430 | && ELF64_R_TYPE (irela[1].r_info) == R_PPC64_TOCSAVE) |
| 12431 | { | |
| 12432 | if (!tocsave_find (htab, INSERT, | |
| 12433 | &local_syms, irela + 1, input_bfd)) | |
| 12434 | goto error_ret_free_internal; | |
| 12435 | } | |
| 12436 | else if (stub_type == ppc_stub_plt_call) | |
| 12437 | stub_type = ppc_stub_plt_call_r2save; | |
| 3b421ab3 | 12438 | |
| 721956f4 | 12439 | /* Support for grouping stub sections. */ |
| 6f20ed8a | 12440 | id_sec = htab->sec_info[section->id].u.group->link_sec; |
| 721956f4 AM |
12441 | |
| 12442 | /* Get the name of this stub. */ | |
| 12443 | stub_name = ppc_stub_name (id_sec, sym_sec, hash, irela); | |
| 12444 | if (!stub_name) | |
| 12445 | goto error_ret_free_internal; | |
| 12446 | ||
| 12447 | stub_entry = ppc_stub_hash_lookup (&htab->stub_hash_table, | |
| b34976b6 | 12448 | stub_name, FALSE, FALSE); |
| 721956f4 AM |
12449 | if (stub_entry != NULL) |
| 12450 | { | |
| 12451 | /* The proper stub has already been created. */ | |
| 12452 | free (stub_name); | |
| 794e51c0 AM |
12453 | if (stub_type == ppc_stub_plt_call_r2save) |
| 12454 | stub_entry->stub_type = stub_type; | |
| 721956f4 AM |
12455 | continue; |
| 12456 | } | |
| 12457 | ||
| 25f53a85 | 12458 | stub_entry = ppc_add_stub (stub_name, section, info); |
| 721956f4 AM |
12459 | if (stub_entry == NULL) |
| 12460 | { | |
| 12461 | free (stub_name); | |
| 6cdc0ccc AM |
12462 | error_ret_free_internal: |
| 12463 | if (elf_section_data (section)->relocs == NULL) | |
| 12464 | free (internal_relocs); | |
| 12465 | error_ret_free_local: | |
| 12466 | if (local_syms != NULL | |
| 12467 | && (symtab_hdr->contents | |
| 12468 | != (unsigned char *) local_syms)) | |
| 12469 | free (local_syms); | |
| b34976b6 | 12470 | return FALSE; |
| 721956f4 AM |
12471 | } |
| 12472 | ||
| ad8e1ba5 | 12473 | stub_entry->stub_type = stub_type; |
| 794e51c0 AM |
12474 | if (stub_type != ppc_stub_plt_call |
| 12475 | && stub_type != ppc_stub_plt_call_r2save) | |
| e054468f AM |
12476 | { |
| 12477 | stub_entry->target_value = code_value; | |
| 12478 | stub_entry->target_section = code_sec; | |
| 12479 | } | |
| 12480 | else | |
| 12481 | { | |
| 12482 | stub_entry->target_value = sym_value; | |
| 12483 | stub_entry->target_section = sym_sec; | |
| 12484 | } | |
| 721956f4 | 12485 | stub_entry->h = hash; |
| e054468f | 12486 | stub_entry->plt_ent = plt_ent; |
| 6911b7dc | 12487 | stub_entry->other = hash ? hash->elf.other : sym->st_other; |
| ee75fd95 AM |
12488 | |
| 12489 | if (stub_entry->h != NULL) | |
| 12490 | htab->stub_globals += 1; | |
| 721956f4 AM |
12491 | } |
| 12492 | ||
| 12493 | /* We're done with the internal relocs, free them. */ | |
| 6cdc0ccc | 12494 | if (elf_section_data (section)->relocs != internal_relocs) |
| 1e2f5b6e | 12495 | free (internal_relocs); |
| 721956f4 | 12496 | } |
| 6cdc0ccc AM |
12497 | |
| 12498 | if (local_syms != NULL | |
| 12499 | && symtab_hdr->contents != (unsigned char *) local_syms) | |
| 12500 | { | |
| 12501 | if (!info->keep_memory) | |
| 12502 | free (local_syms); | |
| 12503 | else | |
| 12504 | symtab_hdr->contents = (unsigned char *) local_syms; | |
| 12505 | } | |
| 721956f4 AM |
12506 | } |
| 12507 | ||
| 5c3dead3 | 12508 | /* We may have added some stubs. Find out the new size of the |
| 721956f4 | 12509 | stub sections. */ |
| e7d1c40c | 12510 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12511 | stub_sec != NULL; |
| 12512 | stub_sec = stub_sec->next) | |
| e717da7e | 12513 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| ee75fd95 | 12514 | { |
| 5c3dead3 | 12515 | stub_sec->rawsize = stub_sec->size; |
| ee75fd95 AM |
12516 | stub_sec->size = 0; |
| 12517 | stub_sec->reloc_count = 0; | |
| 84f5d08e | 12518 | stub_sec->flags &= ~SEC_RELOC; |
| ee75fd95 | 12519 | } |
| eea6121a AM |
12520 | |
| 12521 | htab->brlt->size = 0; | |
| 84f5d08e AM |
12522 | htab->brlt->reloc_count = 0; |
| 12523 | htab->brlt->flags &= ~SEC_RELOC; | |
| ee75fd95 | 12524 | if (htab->relbrlt != NULL) |
| eea6121a | 12525 | htab->relbrlt->size = 0; |
| 721956f4 | 12526 | |
| 63bc6f6c | 12527 | bfd_hash_traverse (&htab->stub_hash_table, ppc_size_one_stub, info); |
| 721956f4 | 12528 | |
| a4b6fadd AM |
12529 | for (group = htab->group; group != NULL; group = group->next) |
| 12530 | if (group->needs_save_res) | |
| 12531 | group->stub_sec->size += htab->sfpr->size; | |
| 12532 | ||
| 176a0d42 AM |
12533 | if (info->emitrelocations |
| 12534 | && htab->glink != NULL && htab->glink->size != 0) | |
| 12535 | { | |
| 12536 | htab->glink->reloc_count = 1; | |
| 12537 | htab->glink->flags |= SEC_RELOC; | |
| 12538 | } | |
| 12539 | ||
| 58d180e8 AM |
12540 | if (htab->glink_eh_frame != NULL |
| 12541 | && !bfd_is_abs_section (htab->glink_eh_frame->output_section) | |
| 9a2a56cc | 12542 | && htab->glink_eh_frame->output_section->size != 0) |
| 58d180e8 | 12543 | { |
| 4bbe044a | 12544 | size_t size = 0, align; |
| 58d180e8 | 12545 | |
| e7d1c40c | 12546 | for (stub_sec = htab->params->stub_bfd->sections; |
| 58d180e8 AM |
12547 | stub_sec != NULL; |
| 12548 | stub_sec = stub_sec->next) | |
| 12549 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| da44f4e5 | 12550 | size += 24; |
| 58d180e8 AM |
12551 | if (htab->glink != NULL && htab->glink->size != 0) |
| 12552 | size += 24; | |
| 12553 | if (size != 0) | |
| 12554 | size += sizeof (glink_eh_frame_cie); | |
| 4bbe044a AM |
12555 | align = 1; |
| 12556 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12557 | align -= 1; | |
| 12558 | size = (size + align) & ~align; | |
| 58d180e8 AM |
12559 | htab->glink_eh_frame->rawsize = htab->glink_eh_frame->size; |
| 12560 | htab->glink_eh_frame->size = size; | |
| 12561 | } | |
| 12562 | ||
| e7d1c40c AM |
12563 | if (htab->params->plt_stub_align != 0) |
| 12564 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
12565 | stub_sec != NULL; |
| 12566 | stub_sec = stub_sec->next) | |
| 12567 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
12568 | stub_sec->size = ((stub_sec->size |
| 12569 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 12570 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 12571 | |
| e7d1c40c | 12572 | for (stub_sec = htab->params->stub_bfd->sections; |
| 5c3dead3 AM |
12573 | stub_sec != NULL; |
| 12574 | stub_sec = stub_sec->next) | |
| 12575 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 | |
| c9301e31 AM |
12576 | && stub_sec->rawsize != stub_sec->size |
| 12577 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 12578 | || stub_sec->rawsize < stub_sec->size)) | |
| 5c3dead3 AM |
12579 | break; |
| 12580 | ||
| 58d180e8 AM |
12581 | if (stub_sec == NULL |
| 12582 | && (htab->glink_eh_frame == NULL | |
| 12583 | || htab->glink_eh_frame->rawsize == htab->glink_eh_frame->size)) | |
| 5c3dead3 AM |
12584 | break; |
| 12585 | ||
| 721956f4 | 12586 | /* Ask the linker to do its stuff. */ |
| e7d1c40c | 12587 | (*htab->params->layout_sections_again) (); |
| 721956f4 AM |
12588 | } |
| 12589 | ||
| da44f4e5 AM |
12590 | if (htab->glink_eh_frame != NULL |
| 12591 | && htab->glink_eh_frame->size != 0) | |
| 12592 | { | |
| 12593 | bfd_vma val; | |
| 12594 | bfd_byte *p, *last_fde; | |
| 12595 | size_t last_fde_len, size, align, pad; | |
| 12596 | asection *stub_sec; | |
| 12597 | ||
| 12598 | p = bfd_zalloc (htab->glink_eh_frame->owner, htab->glink_eh_frame->size); | |
| 12599 | if (p == NULL) | |
| 12600 | return FALSE; | |
| 12601 | htab->glink_eh_frame->contents = p; | |
| 12602 | last_fde = p; | |
| 12603 | ||
| 12604 | memcpy (p, glink_eh_frame_cie, sizeof (glink_eh_frame_cie)); | |
| 12605 | /* CIE length (rewrite in case little-endian). */ | |
| 12606 | last_fde_len = sizeof (glink_eh_frame_cie) - 4; | |
| 12607 | bfd_put_32 (htab->elf.dynobj, last_fde_len, p); | |
| 12608 | p += sizeof (glink_eh_frame_cie); | |
| 12609 | ||
| 12610 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 12611 | stub_sec != NULL; | |
| 12612 | stub_sec = stub_sec->next) | |
| 12613 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 12614 | { | |
| 12615 | last_fde = p; | |
| 12616 | last_fde_len = 20; | |
| 12617 | /* FDE length. */ | |
| 12618 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12619 | p += 4; | |
| 12620 | /* CIE pointer. */ | |
| 12621 | val = p - htab->glink_eh_frame->contents; | |
| 12622 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12623 | p += 4; | |
| 12624 | /* Offset to stub section, written later. */ | |
| 12625 | p += 4; | |
| 12626 | /* stub section size. */ | |
| 12627 | bfd_put_32 (htab->elf.dynobj, stub_sec->size, p); | |
| 12628 | p += 4; | |
| 12629 | /* Augmentation. */ | |
| 12630 | p += 1; | |
| 12631 | /* Pad. */ | |
| 12632 | p += 7; | |
| 12633 | } | |
| 12634 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 12635 | { | |
| 12636 | last_fde = p; | |
| 12637 | last_fde_len = 20; | |
| 12638 | /* FDE length. */ | |
| 12639 | bfd_put_32 (htab->elf.dynobj, 20, p); | |
| 12640 | p += 4; | |
| 12641 | /* CIE pointer. */ | |
| 12642 | val = p - htab->glink_eh_frame->contents; | |
| 12643 | bfd_put_32 (htab->elf.dynobj, val, p); | |
| 12644 | p += 4; | |
| 12645 | /* Offset to .glink, written later. */ | |
| 12646 | p += 4; | |
| 12647 | /* .glink size. */ | |
| 12648 | bfd_put_32 (htab->elf.dynobj, htab->glink->size - 8, p); | |
| 12649 | p += 4; | |
| 12650 | /* Augmentation. */ | |
| 12651 | p += 1; | |
| 12652 | ||
| 12653 | *p++ = DW_CFA_advance_loc + 1; | |
| 12654 | *p++ = DW_CFA_register; | |
| 12655 | *p++ = 65; | |
| 9f08fa5c | 12656 | *p++ = htab->opd_abi ? 12 : 0; |
| da44f4e5 AM |
12657 | *p++ = DW_CFA_advance_loc + 4; |
| 12658 | *p++ = DW_CFA_restore_extended; | |
| 12659 | *p++ = 65; | |
| 12660 | } | |
| 12661 | /* Subsume any padding into the last FDE if user .eh_frame | |
| 12662 | sections are aligned more than glink_eh_frame. Otherwise any | |
| 12663 | zero padding will be seen as a terminator. */ | |
| 12664 | size = p - htab->glink_eh_frame->contents; | |
| 12665 | align = 1; | |
| 12666 | align <<= htab->glink_eh_frame->output_section->alignment_power; | |
| 12667 | align -= 1; | |
| 12668 | pad = ((size + align) & ~align) - size; | |
| 12669 | htab->glink_eh_frame->size = size + pad; | |
| 12670 | bfd_put_32 (htab->elf.dynobj, last_fde_len + pad, last_fde); | |
| 12671 | } | |
| 12672 | ||
| d969d15f AM |
12673 | maybe_strip_output (info, htab->brlt); |
| 12674 | if (htab->glink_eh_frame != NULL) | |
| 12675 | maybe_strip_output (info, htab->glink_eh_frame); | |
| 721956f4 | 12676 | |
| b34976b6 | 12677 | return TRUE; |
| 721956f4 AM |
12678 | } |
| 12679 | ||
| 12680 | /* Called after we have determined section placement. If sections | |
| 805fc799 | 12681 | move, we'll be called again. Provide a value for TOCstart. */ |
| 721956f4 | 12682 | |
| 805fc799 | 12683 | bfd_vma |
| 1c865ab2 | 12684 | ppc64_elf_set_toc (struct bfd_link_info *info, bfd *obfd) |
| 721956f4 | 12685 | { |
| 805fc799 | 12686 | asection *s; |
| a27e685f | 12687 | bfd_vma TOCstart, adjust; |
| 721956f4 | 12688 | |
| 43417696 AM |
12689 | if (info != NULL) |
| 12690 | { | |
| 12691 | struct elf_link_hash_entry *h; | |
| 12692 | struct elf_link_hash_table *htab = elf_hash_table (info); | |
| 12693 | ||
| 12694 | if (is_elf_hash_table (htab) | |
| 12695 | && htab->hgot != NULL) | |
| 12696 | h = htab->hgot; | |
| 12697 | else | |
| 12698 | { | |
| 12699 | h = elf_link_hash_lookup (htab, ".TOC.", FALSE, FALSE, TRUE); | |
| 12700 | if (is_elf_hash_table (htab)) | |
| 12701 | htab->hgot = h; | |
| 12702 | } | |
| 12703 | if (h != NULL | |
| 12704 | && h->root.type == bfd_link_hash_defined | |
| 12705 | && !h->root.linker_def | |
| 12706 | && (!is_elf_hash_table (htab) | |
| 12707 | || h->def_regular)) | |
| 12708 | { | |
| 12709 | TOCstart = (h->root.u.def.value - TOC_BASE_OFF | |
| 12710 | + h->root.u.def.section->output_offset | |
| 12711 | + h->root.u.def.section->output_section->vma); | |
| 12712 | _bfd_set_gp_value (obfd, TOCstart); | |
| 12713 | return TOCstart; | |
| 12714 | } | |
| 12715 | } | |
| 12716 | ||
| 805fc799 AM |
12717 | /* The TOC consists of sections .got, .toc, .tocbss, .plt in that |
| 12718 | order. The TOC starts where the first of these sections starts. */ | |
| 12719 | s = bfd_get_section_by_name (obfd, ".got"); | |
| e054468f | 12720 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12721 | s = bfd_get_section_by_name (obfd, ".toc"); |
| e054468f | 12722 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12723 | s = bfd_get_section_by_name (obfd, ".tocbss"); |
| e054468f | 12724 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 | 12725 | s = bfd_get_section_by_name (obfd, ".plt"); |
| e054468f | 12726 | if (s == NULL || (s->flags & SEC_EXCLUDE) != 0) |
| 805fc799 AM |
12727 | { |
| 12728 | /* This may happen for | |
| 12729 | o references to TOC base (SYM@toc / TOC[tc0]) without a | |
| 12730 | .toc directive | |
| 12731 | o bad linker script | |
| 12732 | o --gc-sections and empty TOC sections | |
| 12733 | ||
| 12734 | FIXME: Warn user? */ | |
| 12735 | ||
| 12736 | /* Look for a likely section. We probably won't even be | |
| 12737 | using TOCstart. */ | |
| 12738 | for (s = obfd->sections; s != NULL; s = s->next) | |
| e054468f AM |
12739 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_READONLY |
| 12740 | | SEC_EXCLUDE)) | |
| 805fc799 AM |
12741 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12742 | break; | |
| 721956f4 | 12743 | if (s == NULL) |
| 805fc799 | 12744 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12745 | if ((s->flags & (SEC_ALLOC | SEC_SMALL_DATA | SEC_EXCLUDE)) |
| 805fc799 AM |
12746 | == (SEC_ALLOC | SEC_SMALL_DATA)) |
| 12747 | break; | |
| 721956f4 | 12748 | if (s == NULL) |
| 805fc799 | 12749 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f AM |
12750 | if ((s->flags & (SEC_ALLOC | SEC_READONLY | SEC_EXCLUDE)) |
| 12751 | == SEC_ALLOC) | |
| 805fc799 | 12752 | break; |
| 721956f4 | 12753 | if (s == NULL) |
| 805fc799 | 12754 | for (s = obfd->sections; s != NULL; s = s->next) |
| e054468f | 12755 | if ((s->flags & (SEC_ALLOC | SEC_EXCLUDE)) == SEC_ALLOC) |
| 805fc799 AM |
12756 | break; |
| 12757 | } | |
| 721956f4 | 12758 | |
| 805fc799 AM |
12759 | TOCstart = 0; |
| 12760 | if (s != NULL) | |
| 12761 | TOCstart = s->output_section->vma + s->output_offset; | |
| 721956f4 | 12762 | |
| a27e685f AM |
12763 | /* Force alignment. */ |
| 12764 | adjust = TOCstart & (TOC_BASE_ALIGN - 1); | |
| 12765 | TOCstart -= adjust; | |
| 1c865ab2 AM |
12766 | _bfd_set_gp_value (obfd, TOCstart); |
| 12767 | ||
| 810d4e75 | 12768 | if (info != NULL && s != NULL) |
| 1c865ab2 AM |
12769 | { |
| 12770 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 12771 | ||
| 810d4e75 AM |
12772 | if (htab != NULL) |
| 12773 | { | |
| 12774 | if (htab->elf.hgot != NULL) | |
| 12775 | { | |
| a27e685f | 12776 | htab->elf.hgot->root.u.def.value = TOC_BASE_OFF - adjust; |
| 810d4e75 AM |
12777 | htab->elf.hgot->root.u.def.section = s; |
| 12778 | } | |
| 12779 | } | |
| 12780 | else | |
| 1c865ab2 | 12781 | { |
| 810d4e75 AM |
12782 | struct bfd_link_hash_entry *bh = NULL; |
| 12783 | _bfd_generic_link_add_one_symbol (info, obfd, ".TOC.", BSF_GLOBAL, | |
| a27e685f AM |
12784 | s, TOC_BASE_OFF - adjust, |
| 12785 | NULL, FALSE, FALSE, &bh); | |
| 1c865ab2 AM |
12786 | } |
| 12787 | } | |
| 805fc799 | 12788 | return TOCstart; |
| 721956f4 AM |
12789 | } |
| 12790 | ||
| a345bc8d AM |
12791 | /* Called via elf_link_hash_traverse from ppc64_elf_build_stubs to |
| 12792 | write out any global entry stubs. */ | |
| 12793 | ||
| 12794 | static bfd_boolean | |
| 12795 | build_global_entry_stubs (struct elf_link_hash_entry *h, void *inf) | |
| 12796 | { | |
| 12797 | struct bfd_link_info *info; | |
| 12798 | struct ppc_link_hash_table *htab; | |
| 12799 | struct plt_entry *pent; | |
| 12800 | asection *s; | |
| 12801 | ||
| 12802 | if (h->root.type == bfd_link_hash_indirect) | |
| 12803 | return TRUE; | |
| 12804 | ||
| 12805 | if (!h->pointer_equality_needed) | |
| 12806 | return TRUE; | |
| 12807 | ||
| 12808 | if (h->def_regular) | |
| 12809 | return TRUE; | |
| 12810 | ||
| 12811 | info = inf; | |
| 12812 | htab = ppc_hash_table (info); | |
| 12813 | if (htab == NULL) | |
| 12814 | return FALSE; | |
| 12815 | ||
| 12816 | s = htab->glink; | |
| 12817 | for (pent = h->plt.plist; pent != NULL; pent = pent->next) | |
| 12818 | if (pent->plt.offset != (bfd_vma) -1 | |
| 12819 | && pent->addend == 0) | |
| 12820 | { | |
| 12821 | bfd_byte *p; | |
| 12822 | asection *plt; | |
| 12823 | bfd_vma off; | |
| 12824 | ||
| a345bc8d | 12825 | p = s->contents + h->root.u.def.value; |
| 33e44f2e | 12826 | plt = htab->elf.splt; |
| a345bc8d AM |
12827 | if (!htab->elf.dynamic_sections_created |
| 12828 | || h->dynindx == -1) | |
| 33e44f2e | 12829 | plt = htab->elf.iplt; |
| a345bc8d AM |
12830 | off = pent->plt.offset + plt->output_offset + plt->output_section->vma; |
| 12831 | off -= h->root.u.def.value + s->output_offset + s->output_section->vma; | |
| 12832 | ||
| 12833 | if (off + 0x80008000 > 0xffffffff || (off & 3) != 0) | |
| 12834 | { | |
| 12835 | info->callbacks->einfo | |
| 12836 | (_("%P: linkage table error against `%T'\n"), | |
| 12837 | h->root.root.string); | |
| 12838 | bfd_set_error (bfd_error_bad_value); | |
| 12839 | htab->stub_error = TRUE; | |
| 12840 | } | |
| 12841 | ||
| 7341d5e2 AM |
12842 | htab->stub_count[ppc_stub_global_entry - 1] += 1; |
| 12843 | if (htab->params->emit_stub_syms) | |
| 12844 | { | |
| 12845 | size_t len = strlen (h->root.root.string); | |
| 12846 | char *name = bfd_malloc (sizeof "12345678.global_entry." + len); | |
| 12847 | ||
| 12848 | if (name == NULL) | |
| 12849 | return FALSE; | |
| 12850 | ||
| 12851 | sprintf (name, "%08x.global_entry.%s", s->id, h->root.root.string); | |
| 12852 | h = elf_link_hash_lookup (&htab->elf, name, TRUE, FALSE, FALSE); | |
| 12853 | if (h == NULL) | |
| 12854 | return FALSE; | |
| 12855 | if (h->root.type == bfd_link_hash_new) | |
| 12856 | { | |
| 12857 | h->root.type = bfd_link_hash_defined; | |
| 12858 | h->root.u.def.section = s; | |
| 12859 | h->root.u.def.value = p - s->contents; | |
| 12860 | h->ref_regular = 1; | |
| 12861 | h->def_regular = 1; | |
| 12862 | h->ref_regular_nonweak = 1; | |
| 12863 | h->forced_local = 1; | |
| 12864 | h->non_elf = 0; | |
| 2ec55de3 | 12865 | h->root.linker_def = 1; |
| 7341d5e2 AM |
12866 | } |
| 12867 | } | |
| 12868 | ||
| a345bc8d AM |
12869 | if (PPC_HA (off) != 0) |
| 12870 | { | |
| 12871 | bfd_put_32 (s->owner, ADDIS_R12_R12 | PPC_HA (off), p); | |
| 12872 | p += 4; | |
| 12873 | } | |
| 12874 | bfd_put_32 (s->owner, LD_R12_0R12 | PPC_LO (off), p); | |
| 12875 | p += 4; | |
| 12876 | bfd_put_32 (s->owner, MTCTR_R12, p); | |
| 12877 | p += 4; | |
| 12878 | bfd_put_32 (s->owner, BCTR, p); | |
| 12879 | break; | |
| 12880 | } | |
| 12881 | return TRUE; | |
| 12882 | } | |
| 12883 | ||
| 721956f4 AM |
12884 | /* Build all the stubs associated with the current output file. |
| 12885 | The stubs are kept in a hash table attached to the main linker | |
| 12886 | hash table. This function is called via gldelf64ppc_finish. */ | |
| 12887 | ||
| b34976b6 | 12888 | bfd_boolean |
| e7d1c40c | 12889 | ppc64_elf_build_stubs (struct bfd_link_info *info, |
| 4ce794b7 | 12890 | char **stats) |
| 5d1634d7 AM |
12891 | { |
| 12892 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| a4b6fadd | 12893 | struct map_stub *group; |
| 721956f4 | 12894 | asection *stub_sec; |
| 5d1634d7 | 12895 | bfd_byte *p; |
| e717da7e | 12896 | int stub_sec_count = 0; |
| 5d1634d7 | 12897 | |
| 4dfe6ac6 NC |
12898 | if (htab == NULL) |
| 12899 | return FALSE; | |
| 12900 | ||
| eea6121a | 12901 | /* Allocate memory to hold the linker stubs. */ |
| e7d1c40c | 12902 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
12903 | stub_sec != NULL; |
| 12904 | stub_sec = stub_sec->next) | |
| eea6121a AM |
12905 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0 |
| 12906 | && stub_sec->size != 0) | |
| e717da7e | 12907 | { |
| e7d1c40c | 12908 | stub_sec->contents = bfd_zalloc (htab->params->stub_bfd, stub_sec->size); |
| eea6121a AM |
12909 | if (stub_sec->contents == NULL) |
| 12910 | return FALSE; | |
| eea6121a | 12911 | stub_sec->size = 0; |
| e717da7e | 12912 | } |
| 5d1634d7 | 12913 | |
| 23eb7e01 | 12914 | if (htab->glink != NULL && htab->glink->size != 0) |
| 5d1634d7 | 12915 | { |
| 9f951329 | 12916 | unsigned int indx; |
| ad8e1ba5 | 12917 | bfd_vma plt0; |
| 9f951329 | 12918 | |
| 721956f4 | 12919 | /* Build the .glink plt call stub. */ |
| e7d1c40c | 12920 | if (htab->params->emit_stub_syms) |
| 97b639ba AM |
12921 | { |
| 12922 | struct elf_link_hash_entry *h; | |
| 468392fb AM |
12923 | h = elf_link_hash_lookup (&htab->elf, "__glink_PLTresolve", |
| 12924 | TRUE, FALSE, FALSE); | |
| 97b639ba AM |
12925 | if (h == NULL) |
| 12926 | return FALSE; | |
| 12927 | if (h->root.type == bfd_link_hash_new) | |
| 12928 | { | |
| 12929 | h->root.type = bfd_link_hash_defined; | |
| 12930 | h->root.u.def.section = htab->glink; | |
| ee4bf8d2 | 12931 | h->root.u.def.value = 8; |
| f5385ebf AM |
12932 | h->ref_regular = 1; |
| 12933 | h->def_regular = 1; | |
| 12934 | h->ref_regular_nonweak = 1; | |
| 12935 | h->forced_local = 1; | |
| 12936 | h->non_elf = 0; | |
| 2ec55de3 | 12937 | h->root.linker_def = 1; |
| 97b639ba AM |
12938 | } |
| 12939 | } | |
| 33e44f2e AM |
12940 | plt0 = (htab->elf.splt->output_section->vma |
| 12941 | + htab->elf.splt->output_offset | |
| 12942 | - 16); | |
| 176a0d42 AM |
12943 | if (info->emitrelocations) |
| 12944 | { | |
| 12945 | Elf_Internal_Rela *r = get_relocs (htab->glink, 1); | |
| 12946 | if (r == NULL) | |
| 12947 | return FALSE; | |
| 12948 | r->r_offset = (htab->glink->output_offset | |
| 12949 | + htab->glink->output_section->vma); | |
| 12950 | r->r_info = ELF64_R_INFO (0, R_PPC64_REL64); | |
| 12951 | r->r_addend = plt0; | |
| 12952 | } | |
| 4ce794b7 | 12953 | p = htab->glink->contents; |
| 176a0d42 | 12954 | plt0 -= htab->glink->output_section->vma + htab->glink->output_offset; |
| ee4bf8d2 AM |
12955 | bfd_put_64 (htab->glink->owner, plt0, p); |
| 12956 | p += 8; | |
| b9e5796b AM |
12957 | if (htab->opd_abi) |
| 12958 | { | |
| 12959 | bfd_put_32 (htab->glink->owner, MFLR_R12, p); | |
| 12960 | p += 4; | |
| 12961 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12962 | p += 4; | |
| 12963 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12964 | p += 4; | |
| 12965 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12966 | p += 4; | |
| 12967 | bfd_put_32 (htab->glink->owner, MTLR_R12, p); | |
| 12968 | p += 4; | |
| 12969 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12970 | p += 4; | |
| 12971 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12972 | p += 4; | |
| 12973 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | 8, p); | |
| 12974 | p += 4; | |
| 12975 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 12976 | p += 4; | |
| 12977 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 16, p); | |
| 12978 | p += 4; | |
| 12979 | } | |
| 12980 | else | |
| 12981 | { | |
| 12982 | bfd_put_32 (htab->glink->owner, MFLR_R0, p); | |
| 12983 | p += 4; | |
| 12984 | bfd_put_32 (htab->glink->owner, BCL_20_31, p); | |
| 12985 | p += 4; | |
| 12986 | bfd_put_32 (htab->glink->owner, MFLR_R11, p); | |
| 12987 | p += 4; | |
| 12988 | bfd_put_32 (htab->glink->owner, LD_R2_0R11 | (-16 & 0xfffc), p); | |
| 12989 | p += 4; | |
| 12990 | bfd_put_32 (htab->glink->owner, MTLR_R0, p); | |
| 12991 | p += 4; | |
| 12992 | bfd_put_32 (htab->glink->owner, SUB_R12_R12_R11, p); | |
| 12993 | p += 4; | |
| 12994 | bfd_put_32 (htab->glink->owner, ADD_R11_R2_R11, p); | |
| 12995 | p += 4; | |
| 12996 | bfd_put_32 (htab->glink->owner, ADDI_R0_R12 | (-48 & 0xffff), p); | |
| 12997 | p += 4; | |
| 12998 | bfd_put_32 (htab->glink->owner, LD_R12_0R11, p); | |
| 12999 | p += 4; | |
| 13000 | bfd_put_32 (htab->glink->owner, SRDI_R0_R0_2, p); | |
| 13001 | p += 4; | |
| 13002 | bfd_put_32 (htab->glink->owner, MTCTR_R12, p); | |
| 13003 | p += 4; | |
| 13004 | bfd_put_32 (htab->glink->owner, LD_R11_0R11 | 8, p); | |
| 13005 | p += 4; | |
| 13006 | } | |
| 4ce794b7 | 13007 | bfd_put_32 (htab->glink->owner, BCTR, p); |
| ad8e1ba5 | 13008 | p += 4; |
| ee4bf8d2 AM |
13009 | while (p - htab->glink->contents < GLINK_CALL_STUB_SIZE) |
| 13010 | { | |
| 13011 | bfd_put_32 (htab->glink->owner, NOP, p); | |
| 13012 | p += 4; | |
| 13013 | } | |
| ad8e1ba5 | 13014 | |
| 9f951329 AM |
13015 | /* Build the .glink lazy link call stubs. */ |
| 13016 | indx = 0; | |
| a345bc8d | 13017 | while (p < htab->glink->contents + htab->glink->rawsize) |
| 9f951329 | 13018 | { |
| b9e5796b | 13019 | if (htab->opd_abi) |
| 9f951329 | 13020 | { |
| b9e5796b AM |
13021 | if (indx < 0x8000) |
| 13022 | { | |
| 13023 | bfd_put_32 (htab->glink->owner, LI_R0_0 | indx, p); | |
| 13024 | p += 4; | |
| 13025 | } | |
| 13026 | else | |
| 13027 | { | |
| 13028 | bfd_put_32 (htab->glink->owner, LIS_R0_0 | PPC_HI (indx), p); | |
| 13029 | p += 4; | |
| 13030 | bfd_put_32 (htab->glink->owner, ORI_R0_R0_0 | PPC_LO (indx), | |
| 13031 | p); | |
| 13032 | p += 4; | |
| 13033 | } | |
| 9f951329 | 13034 | } |
| 4ce794b7 | 13035 | bfd_put_32 (htab->glink->owner, |
| ee4bf8d2 | 13036 | B_DOT | ((htab->glink->contents - p + 8) & 0x3fffffc), p); |
| a16d5acb | 13037 | indx++; |
| 9f951329 AM |
13038 | p += 4; |
| 13039 | } | |
| a345bc8d AM |
13040 | |
| 13041 | /* Build .glink global entry stubs. */ | |
| 13042 | if (htab->glink->size > htab->glink->rawsize) | |
| afe397ea | 13043 | elf_link_hash_traverse (&htab->elf, build_global_entry_stubs, info); |
| 5d1634d7 | 13044 | } |
| 5d1634d7 | 13045 | |
| 7341d5e2 | 13046 | if (htab->brlt != NULL && htab->brlt->size != 0) |
| 721956f4 | 13047 | { |
| 4ce794b7 | 13048 | htab->brlt->contents = bfd_zalloc (htab->brlt->owner, |
| eea6121a | 13049 | htab->brlt->size); |
| 4ce794b7 | 13050 | if (htab->brlt->contents == NULL) |
| b34976b6 | 13051 | return FALSE; |
| 721956f4 | 13052 | } |
| ee75fd95 | 13053 | if (htab->relbrlt != NULL && htab->relbrlt->size != 0) |
| 63bc6f6c AM |
13054 | { |
| 13055 | htab->relbrlt->contents = bfd_zalloc (htab->relbrlt->owner, | |
| eea6121a | 13056 | htab->relbrlt->size); |
| 63bc6f6c AM |
13057 | if (htab->relbrlt->contents == NULL) |
| 13058 | return FALSE; | |
| 13059 | } | |
| 5d1634d7 | 13060 | |
| 721956f4 AM |
13061 | /* Build the stubs as directed by the stub hash table. */ |
| 13062 | bfd_hash_traverse (&htab->stub_hash_table, ppc_build_one_stub, info); | |
| 5d1634d7 | 13063 | |
| a4b6fadd AM |
13064 | for (group = htab->group; group != NULL; group = group->next) |
| 13065 | if (group->needs_save_res) | |
| 13066 | { | |
| 13067 | stub_sec = group->stub_sec; | |
| 13068 | memcpy (stub_sec->contents + stub_sec->size, htab->sfpr->contents, | |
| 13069 | htab->sfpr->size); | |
| 13070 | if (htab->params->emit_stub_syms) | |
| 13071 | { | |
| 13072 | unsigned int i; | |
| 13073 | ||
| 13074 | for (i = 0; i < ARRAY_SIZE (save_res_funcs); i++) | |
| 13075 | if (!sfpr_define (info, &save_res_funcs[i], stub_sec)) | |
| 13076 | return FALSE; | |
| 13077 | } | |
| 13078 | stub_sec->size += htab->sfpr->size; | |
| 13079 | } | |
| 13080 | ||
| aa8a7074 AM |
13081 | if (htab->relbrlt != NULL) |
| 13082 | htab->relbrlt->reloc_count = 0; | |
| 13083 | ||
| e7d1c40c AM |
13084 | if (htab->params->plt_stub_align != 0) |
| 13085 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 794e51c0 AM |
13086 | stub_sec != NULL; |
| 13087 | stub_sec = stub_sec->next) | |
| 13088 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| e7d1c40c AM |
13089 | stub_sec->size = ((stub_sec->size |
| 13090 | + (1 << htab->params->plt_stub_align) - 1) | |
| 29f628db | 13091 | & -(1 << htab->params->plt_stub_align)); |
| 794e51c0 | 13092 | |
| e7d1c40c | 13093 | for (stub_sec = htab->params->stub_bfd->sections; |
| 721956f4 AM |
13094 | stub_sec != NULL; |
| 13095 | stub_sec = stub_sec->next) | |
| e717da7e AM |
13096 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) |
| 13097 | { | |
| 13098 | stub_sec_count += 1; | |
| c9301e31 AM |
13099 | if (stub_sec->rawsize != stub_sec->size |
| 13100 | && (htab->stub_iteration <= STUB_SHRINK_ITER | |
| 13101 | || stub_sec->rawsize < stub_sec->size)) | |
| e717da7e AM |
13102 | break; |
| 13103 | } | |
| 5d1634d7 | 13104 | |
| da44f4e5 AM |
13105 | /* Note that the glink_eh_frame check here is not only testing that |
| 13106 | the generated size matched the calculated size but also that | |
| 13107 | bfd_elf_discard_info didn't make any changes to the section. */ | |
| 721956f4 | 13108 | if (stub_sec != NULL |
| 58d180e8 AM |
13109 | || (htab->glink_eh_frame != NULL |
| 13110 | && htab->glink_eh_frame->rawsize != htab->glink_eh_frame->size)) | |
| 5d1634d7 | 13111 | { |
| b34976b6 | 13112 | htab->stub_error = TRUE; |
| 8de848d8 | 13113 | info->callbacks->einfo (_("%P: stubs don't match calculated size\n")); |
| 5d1634d7 | 13114 | } |
| 721956f4 | 13115 | |
| d2a300cf AM |
13116 | if (htab->stub_error) |
| 13117 | return FALSE; | |
| 13118 | ||
| 13119 | if (stats != NULL) | |
| 13120 | { | |
| 13121 | *stats = bfd_malloc (500); | |
| 13122 | if (*stats == NULL) | |
| 13123 | return FALSE; | |
| 13124 | ||
| ee75fd95 | 13125 | sprintf (*stats, _("linker stubs in %u group%s\n" |
| d2a300cf AM |
13126 | " branch %lu\n" |
| 13127 | " toc adjust %lu\n" | |
| 13128 | " long branch %lu\n" | |
| 13129 | " long toc adj %lu\n" | |
| 794e51c0 | 13130 | " plt call %lu\n" |
| 7341d5e2 AM |
13131 | " plt call toc %lu\n" |
| 13132 | " global entry %lu"), | |
| e717da7e | 13133 | stub_sec_count, |
| ee75fd95 | 13134 | stub_sec_count == 1 ? "" : "s", |
| 4ce794b7 AM |
13135 | htab->stub_count[ppc_stub_long_branch - 1], |
| 13136 | htab->stub_count[ppc_stub_long_branch_r2off - 1], | |
| 13137 | htab->stub_count[ppc_stub_plt_branch - 1], | |
| 13138 | htab->stub_count[ppc_stub_plt_branch_r2off - 1], | |
| 794e51c0 | 13139 | htab->stub_count[ppc_stub_plt_call - 1], |
| 7341d5e2 AM |
13140 | htab->stub_count[ppc_stub_plt_call_r2save - 1], |
| 13141 | htab->stub_count[ppc_stub_global_entry - 1]); | |
| d2a300cf AM |
13142 | } |
| 13143 | return TRUE; | |
| 5bd4f169 AM |
13144 | } |
| 13145 | ||
| 99877b66 AM |
13146 | /* This function undoes the changes made by add_symbol_adjust. */ |
| 13147 | ||
| 13148 | static bfd_boolean | |
| 13149 | undo_symbol_twiddle (struct elf_link_hash_entry *h, void *inf ATTRIBUTE_UNUSED) | |
| 13150 | { | |
| 13151 | struct ppc_link_hash_entry *eh; | |
| 13152 | ||
| 13153 | if (h->root.type == bfd_link_hash_indirect) | |
| 13154 | return TRUE; | |
| 13155 | ||
| 99877b66 AM |
13156 | eh = (struct ppc_link_hash_entry *) h; |
| 13157 | if (eh->elf.root.type != bfd_link_hash_undefweak || !eh->was_undefined) | |
| 13158 | return TRUE; | |
| 13159 | ||
| 13160 | eh->elf.root.type = bfd_link_hash_undefined; | |
| 13161 | return TRUE; | |
| 13162 | } | |
| 13163 | ||
| 13164 | void | |
| 13165 | ppc64_elf_restore_symbols (struct bfd_link_info *info) | |
| 13166 | { | |
| 13167 | struct ppc_link_hash_table *htab = ppc_hash_table (info); | |
| 4dfe6ac6 NC |
13168 | |
| 13169 | if (htab != NULL) | |
| 13170 | elf_link_hash_traverse (&htab->elf, undo_symbol_twiddle, info); | |
| 99877b66 AM |
13171 | } |
| 13172 | ||
| 60124e18 AM |
13173 | /* What to do when ld finds relocations against symbols defined in |
| 13174 | discarded sections. */ | |
| 13175 | ||
| 13176 | static unsigned int | |
| 13177 | ppc64_elf_action_discarded (asection *sec) | |
| 13178 | { | |
| 13179 | if (strcmp (".opd", sec->name) == 0) | |
| 13180 | return 0; | |
| 13181 | ||
| 13182 | if (strcmp (".toc", sec->name) == 0) | |
| 13183 | return 0; | |
| 13184 | ||
| bce50a28 JJ |
13185 | if (strcmp (".toc1", sec->name) == 0) |
| 13186 | return 0; | |
| 13187 | ||
| 60124e18 AM |
13188 | return _bfd_elf_default_action_discarded (sec); |
| 13189 | } | |
| 13190 | ||
| 5bd4f169 AM |
13191 | /* The RELOCATE_SECTION function is called by the ELF backend linker |
| 13192 | to handle the relocations for a section. | |
| 13193 | ||
| 13194 | The relocs are always passed as Rela structures; if the section | |
| 13195 | actually uses Rel structures, the r_addend field will always be | |
| 13196 | zero. | |
| 13197 | ||
| 13198 | This function is responsible for adjust the section contents as | |
| 13199 | necessary, and (if using Rela relocs and generating a | |
| 1049f94e | 13200 | relocatable output file) adjusting the reloc addend as |
| 5bd4f169 AM |
13201 | necessary. |
| 13202 | ||
| 13203 | This function does not have to worry about setting the reloc | |
| 13204 | address or the reloc symbol index. | |
| 13205 | ||
| 13206 | LOCAL_SYMS is a pointer to the swapped in local symbols. | |
| 13207 | ||
| 13208 | LOCAL_SECTIONS is an array giving the section in the input file | |
| 13209 | corresponding to the st_shndx field of each local symbol. | |
| 13210 | ||
| 13211 | The global hash table entry for the global symbols can be found | |
| 13212 | via elf_sym_hashes (input_bfd). | |
| 13213 | ||
| 1049f94e | 13214 | When generating relocatable output, this function must handle |
| 5bd4f169 AM |
13215 | STB_LOCAL/STT_SECTION symbols specially. The output symbol is |
| 13216 | going to be the section symbol corresponding to the output | |
| 13217 | section, which means that the addend must be adjusted | |
| 13218 | accordingly. */ | |
| 13219 | ||
| b34976b6 | 13220 | static bfd_boolean |
| 4ce794b7 AM |
13221 | ppc64_elf_relocate_section (bfd *output_bfd, |
| 13222 | struct bfd_link_info *info, | |
| 13223 | bfd *input_bfd, | |
| 13224 | asection *input_section, | |
| 13225 | bfd_byte *contents, | |
| 13226 | Elf_Internal_Rela *relocs, | |
| 13227 | Elf_Internal_Sym *local_syms, | |
| 13228 | asection **local_sections) | |
| 5bd4f169 | 13229 | { |
| 65f38f15 | 13230 | struct ppc_link_hash_table *htab; |
| 5bd4f169 AM |
13231 | Elf_Internal_Shdr *symtab_hdr; |
| 13232 | struct elf_link_hash_entry **sym_hashes; | |
| 5bd4f169 | 13233 | Elf_Internal_Rela *rel; |
| c316a17c | 13234 | Elf_Internal_Rela *wrel; |
| 5bd4f169 | 13235 | Elf_Internal_Rela *relend; |
| 411e1bfb AM |
13236 | Elf_Internal_Rela outrel; |
| 13237 | bfd_byte *loc; | |
| 411e1bfb | 13238 | struct got_entry **local_got_ents; |
| 5bd4f169 | 13239 | bfd_vma TOCstart; |
| b34976b6 AM |
13240 | bfd_boolean ret = TRUE; |
| 13241 | bfd_boolean is_opd; | |
| 794e51c0 AM |
13242 | /* Assume 'at' branch hints. */ |
| 13243 | bfd_boolean is_isa_v2 = TRUE; | |
| 4fe5ca5b | 13244 | bfd_vma d_offset = (bfd_big_endian (output_bfd) ? 2 : 0); |
| 5bd4f169 | 13245 | |
| 65f38f15 | 13246 | /* Initialize howto table if needed. */ |
| 5bd4f169 | 13247 | if (!ppc64_elf_howto_table[R_PPC64_ADDR32]) |
| 5bd4f169 AM |
13248 | ppc_howto_init (); |
| 13249 | ||
| 65f38f15 | 13250 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
13251 | if (htab == NULL) |
| 13252 | return FALSE; | |
| ee75fd95 AM |
13253 | |
| 13254 | /* Don't relocate stub sections. */ | |
| e7d1c40c | 13255 | if (input_section->owner == htab->params->stub_bfd) |
| ee75fd95 AM |
13256 | return TRUE; |
| 13257 | ||
| 0c8d6e5c | 13258 | BFD_ASSERT (is_ppc64_elf (input_bfd)); |
| 0ffa91dd | 13259 | |
| 411e1bfb | 13260 | local_got_ents = elf_local_got_ents (input_bfd); |
| 5bd4f169 | 13261 | TOCstart = elf_gp (output_bfd); |
| 0ffa91dd | 13262 | symtab_hdr = &elf_symtab_hdr (input_bfd); |
| 5bd4f169 | 13263 | sym_hashes = elf_sym_hashes (input_bfd); |
| 7c8fe5c4 | 13264 | is_opd = ppc64_elf_section_data (input_section)->sec_type == sec_opd; |
| 65f38f15 | 13265 | |
| c316a17c | 13266 | rel = wrel = relocs; |
| 5bd4f169 | 13267 | relend = relocs + input_section->reloc_count; |
| c316a17c | 13268 | for (; rel < relend; wrel++, rel++) |
| 5bd4f169 | 13269 | { |
| 04c9666a | 13270 | enum elf_ppc64_reloc_type r_type; |
| 31c76678 | 13271 | bfd_vma addend; |
| 5bd4f169 AM |
13272 | bfd_reloc_status_type r; |
| 13273 | Elf_Internal_Sym *sym; | |
| 13274 | asection *sec; | |
| 039b3fef AM |
13275 | struct elf_link_hash_entry *h_elf; |
| 13276 | struct ppc_link_hash_entry *h; | |
| 13277 | struct ppc_link_hash_entry *fdh; | |
| 5bd4f169 | 13278 | const char *sym_name; |
| 0d4792f7 | 13279 | unsigned long r_symndx, toc_symndx; |
| 3a71aa26 | 13280 | bfd_vma toc_addend; |
| f961d9dd AM |
13281 | unsigned char tls_mask, tls_gd, tls_type; |
| 13282 | unsigned char sym_type; | |
| 5bd4f169 | 13283 | bfd_vma relocation; |
| b34976b6 AM |
13284 | bfd_boolean unresolved_reloc; |
| 13285 | bfd_boolean warned; | |
| bc30df16 | 13286 | enum { DEST_NORMAL, DEST_OPD, DEST_STUB } reloc_dest; |
| 67f0cbdb | 13287 | unsigned int insn; |
| e11840f9 | 13288 | unsigned int mask; |
| 721956f4 AM |
13289 | struct ppc_stub_hash_entry *stub_entry; |
| 13290 | bfd_vma max_br_offset; | |
| 13291 | bfd_vma from; | |
| c316a17c | 13292 | Elf_Internal_Rela orig_rel; |
| b80eed39 AM |
13293 | reloc_howto_type *howto; |
| 13294 | struct reloc_howto_struct alt_howto; | |
| 5bd4f169 | 13295 | |
| c316a17c AM |
13296 | again: |
| 13297 | orig_rel = *rel; | |
| 13298 | ||
| 4ce794b7 | 13299 | r_type = ELF64_R_TYPE (rel->r_info); |
| 5bd4f169 | 13300 | r_symndx = ELF64_R_SYM (rel->r_info); |
| ee87f2da AM |
13301 | |
| 13302 | /* For old style R_PPC64_TOC relocs with a zero symbol, use the | |
| 13303 | symbol of the previous ADDR64 reloc. The symbol gives us the | |
| 13304 | proper TOC base to use. */ | |
| 13305 | if (rel->r_info == ELF64_R_INFO (0, R_PPC64_TOC) | |
| c316a17c AM |
13306 | && wrel != relocs |
| 13307 | && ELF64_R_TYPE (wrel[-1].r_info) == R_PPC64_ADDR64 | |
| ee87f2da | 13308 | && is_opd) |
| c316a17c | 13309 | r_symndx = ELF64_R_SYM (wrel[-1].r_info); |
| ee87f2da | 13310 | |
| 4ce794b7 AM |
13311 | sym = NULL; |
| 13312 | sec = NULL; | |
| 039b3fef | 13313 | h_elf = NULL; |
| 4ce794b7 | 13314 | sym_name = NULL; |
| b34976b6 AM |
13315 | unresolved_reloc = FALSE; |
| 13316 | warned = FALSE; | |
| 65f38f15 | 13317 | |
| 0b13192e | 13318 | if (r_symndx < symtab_hdr->sh_info) |
| 5bd4f169 AM |
13319 | { |
| 13320 | /* It's a local symbol. */ | |
| 74f0fb50 | 13321 | struct _opd_sec_data *opd; |
| 4025353c | 13322 | |
| 5bd4f169 AM |
13323 | sym = local_syms + r_symndx; |
| 13324 | sec = local_sections[r_symndx]; | |
| 26c61ae5 | 13325 | sym_name = bfd_elf_sym_name (input_bfd, symtab_hdr, sym, sec); |
| 0d4792f7 | 13326 | sym_type = ELF64_ST_TYPE (sym->st_info); |
| 8517fae7 | 13327 | relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel); |
| 74f0fb50 AM |
13328 | opd = get_opd_info (sec); |
| 13329 | if (opd != NULL && opd->adjust != NULL) | |
| 1e2f5b6e | 13330 | { |
| 51aecdc5 AM |
13331 | long adjust = opd->adjust[OPD_NDX (sym->st_value |
| 13332 | + rel->r_addend)]; | |
| 4025353c AM |
13333 | if (adjust == -1) |
| 13334 | relocation = 0; | |
| 13335 | else | |
| 4cc603a5 AM |
13336 | { |
| 13337 | /* If this is a relocation against the opd section sym | |
| 13338 | and we have edited .opd, adjust the reloc addend so | |
| 13339 | that ld -r and ld --emit-relocs output is correct. | |
| 13340 | If it is a reloc against some other .opd symbol, | |
| 13341 | then the symbol value will be adjusted later. */ | |
| 13342 | if (ELF_ST_TYPE (sym->st_info) == STT_SECTION) | |
| 13343 | rel->r_addend += adjust; | |
| 13344 | else | |
| 13345 | relocation += adjust; | |
| 13346 | } | |
| 1e2f5b6e | 13347 | } |
| 5bd4f169 AM |
13348 | } |
| 13349 | else | |
| 13350 | { | |
| 62d887d4 L |
13351 | bfd_boolean ignored; |
| 13352 | ||
| b2a8e766 AM |
13353 | RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel, |
| 13354 | r_symndx, symtab_hdr, sym_hashes, | |
| 039b3fef | 13355 | h_elf, sec, relocation, |
| 62d887d4 | 13356 | unresolved_reloc, warned, ignored); |
| 039b3fef AM |
13357 | sym_name = h_elf->root.root.string; |
| 13358 | sym_type = h_elf->type; | |
| b69fdb4e AM |
13359 | if (sec != NULL |
| 13360 | && sec->owner == output_bfd | |
| 13361 | && strcmp (sec->name, ".opd") == 0) | |
| 13362 | { | |
| 13363 | /* This is a symbol defined in a linker script. All | |
| 13364 | such are defined in output sections, even those | |
| 13365 | defined by simple assignment from a symbol defined in | |
| 13366 | an input section. Transfer the symbol to an | |
| 13367 | appropriate input .opd section, so that a branch to | |
| 13368 | this symbol will be mapped to the location specified | |
| 13369 | by the opd entry. */ | |
| 13370 | struct bfd_link_order *lo; | |
| 13371 | for (lo = sec->map_head.link_order; lo != NULL; lo = lo->next) | |
| 13372 | if (lo->type == bfd_indirect_link_order) | |
| 13373 | { | |
| 13374 | asection *isec = lo->u.indirect.section; | |
| 13375 | if (h_elf->root.u.def.value >= isec->output_offset | |
| 13376 | && h_elf->root.u.def.value < (isec->output_offset | |
| 13377 | + isec->size)) | |
| 13378 | { | |
| 13379 | h_elf->root.u.def.value -= isec->output_offset; | |
| 13380 | h_elf->root.u.def.section = isec; | |
| 13381 | sec = isec; | |
| 13382 | break; | |
| 13383 | } | |
| 13384 | } | |
| 13385 | } | |
| 5bd4f169 | 13386 | } |
| 039b3fef | 13387 | h = (struct ppc_link_hash_entry *) h_elf; |
| 5bd4f169 | 13388 | |
| dbaa2011 | 13389 | if (sec != NULL && discarded_section (sec)) |
| c316a17c AM |
13390 | { |
| 13391 | _bfd_clear_contents (ppc64_elf_howto_table[r_type], | |
| 13392 | input_bfd, input_section, | |
| 13393 | contents + rel->r_offset); | |
| 13394 | wrel->r_offset = rel->r_offset; | |
| 13395 | wrel->r_info = 0; | |
| 13396 | wrel->r_addend = 0; | |
| 13397 | ||
| 13398 | /* For ld -r, remove relocations in debug sections against | |
| 13399 | sections defined in discarded sections. Not done for | |
| 13400 | non-debug to preserve relocs in .eh_frame which the | |
| 13401 | eh_frame editing code expects to be present. */ | |
| 13402 | if (bfd_link_relocatable (info) | |
| 13403 | && (input_section->flags & SEC_DEBUGGING)) | |
| 13404 | wrel--; | |
| 13405 | ||
| 13406 | continue; | |
| 13407 | } | |
| ab96bf03 | 13408 | |
| 0e1862bb | 13409 | if (bfd_link_relocatable (info)) |
| c316a17c | 13410 | goto copy_reloc; |
| ab96bf03 | 13411 | |
| f40da81b AM |
13412 | if (h != NULL && &h->elf == htab->elf.hgot) |
| 13413 | { | |
| 6f20ed8a | 13414 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; |
| f40da81b AM |
13415 | sec = bfd_abs_section_ptr; |
| 13416 | unresolved_reloc = FALSE; | |
| 13417 | } | |
| 13418 | ||
| 951fd09b AM |
13419 | /* TLS optimizations. Replace instruction sequences and relocs |
| 13420 | based on information we collected in tls_optimize. We edit | |
| 13421 | RELOCS so that --emit-relocs will output something sensible | |
| 13422 | for the final instruction stream. */ | |
| 13423 | tls_mask = 0; | |
| 13424 | tls_gd = 0; | |
| 0d4792f7 | 13425 | toc_symndx = 0; |
| 727fc41e AM |
13426 | if (h != NULL) |
| 13427 | tls_mask = h->tls_mask; | |
| 13428 | else if (local_got_ents != NULL) | |
| 411e1bfb | 13429 | { |
| e054468f AM |
13430 | struct plt_entry **local_plt = (struct plt_entry **) |
| 13431 | (local_got_ents + symtab_hdr->sh_info); | |
| f961d9dd | 13432 | unsigned char *lgot_masks = (unsigned char *) |
| e054468f | 13433 | (local_plt + symtab_hdr->sh_info); |
| 727fc41e AM |
13434 | tls_mask = lgot_masks[r_symndx]; |
| 13435 | } | |
| 13436 | if (tls_mask == 0 | |
| 13437 | && (r_type == R_PPC64_TLS | |
| 13438 | || r_type == R_PPC64_TLSGD | |
| 13439 | || r_type == R_PPC64_TLSLD)) | |
| 13440 | { | |
| 13441 | /* Check for toc tls entries. */ | |
| f961d9dd | 13442 | unsigned char *toc_tls; |
| 0d4792f7 | 13443 | |
| 727fc41e AM |
13444 | if (!get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13445 | &local_syms, rel, input_bfd)) | |
| 13446 | return FALSE; | |
| 0d4792f7 | 13447 | |
| 727fc41e AM |
13448 | if (toc_tls) |
| 13449 | tls_mask = *toc_tls; | |
| 0d4792f7 AM |
13450 | } |
| 13451 | ||
| 13452 | /* Check that tls relocs are used with tls syms, and non-tls | |
| 13453 | relocs are used with non-tls syms. */ | |
| cf35638d | 13454 | if (r_symndx != STN_UNDEF |
| 0d4792f7 AM |
13455 | && r_type != R_PPC64_NONE |
| 13456 | && (h == NULL | |
| 039b3fef AM |
13457 | || h->elf.root.type == bfd_link_hash_defined |
| 13458 | || h->elf.root.type == bfd_link_hash_defweak) | |
| 1d483afe AM |
13459 | && (IS_PPC64_TLS_RELOC (r_type) |
| 13460 | != (sym_type == STT_TLS | |
| 13461 | || (sym_type == STT_SECTION | |
| 13462 | && (sec->flags & SEC_THREAD_LOCAL) != 0)))) | |
| 0d4792f7 | 13463 | { |
| 727fc41e AM |
13464 | if (tls_mask != 0 |
| 13465 | && (r_type == R_PPC64_TLS | |
| 13466 | || r_type == R_PPC64_TLSGD | |
| 13467 | || r_type == R_PPC64_TLSLD)) | |
| 0d4792f7 AM |
13468 | /* R_PPC64_TLS is OK against a symbol in the TOC. */ |
| 13469 | ; | |
| 13470 | else | |
| 25f53a85 | 13471 | info->callbacks->einfo |
| 1d483afe | 13472 | (!IS_PPC64_TLS_RELOC (r_type) |
| bc30df16 AM |
13473 | ? _("%P: %H: %s used with TLS symbol `%T'\n") |
| 13474 | : _("%P: %H: %s used with non-TLS symbol `%T'\n"), | |
| 25f53a85 | 13475 | input_bfd, input_section, rel->r_offset, |
| 0d4792f7 AM |
13476 | ppc64_elf_howto_table[r_type]->name, |
| 13477 | sym_name); | |
| 411e1bfb AM |
13478 | } |
| 13479 | ||
| 13480 | /* Ensure reloc mapping code below stays sane. */ | |
| 13481 | if (R_PPC64_TOC16_LO_DS != R_PPC64_TOC16_DS + 1 | |
| 13482 | || R_PPC64_TOC16_LO != R_PPC64_TOC16 + 1 | |
| 13483 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TLSGD16 & 3) | |
| 13484 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TLSGD16_LO & 3) | |
| 13485 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TLSGD16_HI & 3) | |
| 13486 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TLSGD16_HA & 3) | |
| 13487 | || (R_PPC64_GOT_TLSLD16 & 3) != (R_PPC64_GOT_TPREL16_DS & 3) | |
| 13488 | || (R_PPC64_GOT_TLSLD16_LO & 3) != (R_PPC64_GOT_TPREL16_LO_DS & 3) | |
| 13489 | || (R_PPC64_GOT_TLSLD16_HI & 3) != (R_PPC64_GOT_TPREL16_HI & 3) | |
| 13490 | || (R_PPC64_GOT_TLSLD16_HA & 3) != (R_PPC64_GOT_TPREL16_HA & 3)) | |
| 13491 | abort (); | |
| 0d4792f7 | 13492 | |
| 411e1bfb AM |
13493 | switch (r_type) |
| 13494 | { | |
| 13495 | default: | |
| 411e1bfb AM |
13496 | break; |
| 13497 | ||
| ba761f19 AM |
13498 | case R_PPC64_LO_DS_OPT: |
| 13499 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset - d_offset); | |
| 13500 | if ((insn & (0x3f << 26)) != 58u << 26) | |
| 13501 | abort (); | |
| 13502 | insn += (14u << 26) - (58u << 26); | |
| 13503 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset - d_offset); | |
| 13504 | r_type = R_PPC64_TOC16_LO; | |
| 13505 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13506 | break; | |
| 13507 | ||
| 411e1bfb AM |
13508 | case R_PPC64_TOC16: |
| 13509 | case R_PPC64_TOC16_LO: | |
| 13510 | case R_PPC64_TOC16_DS: | |
| 13511 | case R_PPC64_TOC16_LO_DS: | |
| 411e1bfb AM |
13512 | { |
| 13513 | /* Check for toc tls entries. */ | |
| f961d9dd | 13514 | unsigned char *toc_tls; |
| 951fd09b | 13515 | int retval; |
| 411e1bfb | 13516 | |
| 3a71aa26 AM |
13517 | retval = get_tls_mask (&toc_tls, &toc_symndx, &toc_addend, |
| 13518 | &local_syms, rel, input_bfd); | |
| 951fd09b | 13519 | if (retval == 0) |
| 411e1bfb AM |
13520 | return FALSE; |
| 13521 | ||
| 13522 | if (toc_tls) | |
| 13523 | { | |
| 951fd09b | 13524 | tls_mask = *toc_tls; |
| 411e1bfb AM |
13525 | if (r_type == R_PPC64_TOC16_DS |
| 13526 | || r_type == R_PPC64_TOC16_LO_DS) | |
| 81407a69 AM |
13527 | { |
| 13528 | if (tls_mask != 0 | |
| 13529 | && (tls_mask & (TLS_DTPREL | TLS_TPREL)) == 0) | |
| 13530 | goto toctprel; | |
| 13531 | } | |
| 411e1bfb | 13532 | else |
| 951fd09b AM |
13533 | { |
| 13534 | /* If we found a GD reloc pair, then we might be | |
| 13535 | doing a GD->IE transition. */ | |
| 13536 | if (retval == 2) | |
| 13537 | { | |
| 13538 | tls_gd = TLS_TPRELGD; | |
| 13539 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13540 | goto tls_ldgd_opt; |
| 951fd09b AM |
13541 | } |
| 13542 | else if (retval == 3) | |
| 13543 | { | |
| 13544 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 102890f0 | 13545 | goto tls_ldgd_opt; |
| 951fd09b AM |
13546 | } |
| 13547 | } | |
| 411e1bfb AM |
13548 | } |
| 13549 | } | |
| 13550 | break; | |
| 13551 | ||
| 9d6ded02 AM |
13552 | case R_PPC64_GOT_TPREL16_HI: |
| 13553 | case R_PPC64_GOT_TPREL16_HA: | |
| 13554 | if (tls_mask != 0 | |
| 13555 | && (tls_mask & TLS_TPREL) == 0) | |
| 13556 | { | |
| 13557 | rel->r_offset -= d_offset; | |
| 13558 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); | |
| 13559 | r_type = R_PPC64_NONE; | |
| 13560 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13561 | } | |
| 13562 | break; | |
| 13563 | ||
| 411e1bfb AM |
13564 | case R_PPC64_GOT_TPREL16_DS: |
| 13565 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 951fd09b AM |
13566 | if (tls_mask != 0 |
| 13567 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13568 | { |
| 81407a69 | 13569 | toctprel: |
| c316a17c AM |
13570 | insn = bfd_get_32 (output_bfd, |
| 13571 | contents + rel->r_offset - d_offset); | |
| 411e1bfb AM |
13572 | insn &= 31 << 21; |
| 13573 | insn |= 0x3c0d0000; /* addis 0,13,0 */ | |
| c316a17c AM |
13574 | bfd_put_32 (output_bfd, insn, |
| 13575 | contents + rel->r_offset - d_offset); | |
| 411e1bfb | 13576 | r_type = R_PPC64_TPREL16_HA; |
| 0d4792f7 AM |
13577 | if (toc_symndx != 0) |
| 13578 | { | |
| 13579 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13580 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13581 | /* We changed the symbol. Start over in order to |
| 13582 | get h, sym, sec etc. right. */ | |
| c316a17c | 13583 | goto again; |
| 0d4792f7 AM |
13584 | } |
| 13585 | else | |
| 13586 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13587 | } |
| 13588 | break; | |
| 13589 | ||
| 13590 | case R_PPC64_TLS: | |
| 951fd09b AM |
13591 | if (tls_mask != 0 |
| 13592 | && (tls_mask & TLS_TPREL) == 0) | |
| 411e1bfb | 13593 | { |
| 411e1bfb | 13594 | insn = bfd_get_32 (output_bfd, contents + rel->r_offset); |
| 2d0f3896 AM |
13595 | insn = _bfd_elf_ppc_at_tls_transform (insn, 13); |
| 13596 | if (insn == 0) | |
| 411e1bfb | 13597 | abort (); |
| 411e1bfb | 13598 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); |
| 411e1bfb | 13599 | /* Was PPC64_TLS which sits on insn boundary, now |
| 4fe5ca5b GM |
13600 | PPC64_TPREL16_LO which is at low-order half-word. */ |
| 13601 | rel->r_offset += d_offset; | |
| 0d4792f7 AM |
13602 | r_type = R_PPC64_TPREL16_LO; |
| 13603 | if (toc_symndx != 0) | |
| 13604 | { | |
| 13605 | rel->r_info = ELF64_R_INFO (toc_symndx, r_type); | |
| 3a71aa26 | 13606 | rel->r_addend = toc_addend; |
| 0d4792f7 AM |
13607 | /* We changed the symbol. Start over in order to |
| 13608 | get h, sym, sec etc. right. */ | |
| c316a17c | 13609 | goto again; |
| 0d4792f7 AM |
13610 | } |
| 13611 | else | |
| 13612 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 411e1bfb AM |
13613 | } |
| 13614 | break; | |
| 13615 | ||
| 411e1bfb AM |
13616 | case R_PPC64_GOT_TLSGD16_HI: |
| 13617 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b AM |
13618 | tls_gd = TLS_TPRELGD; |
| 13619 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13620 | goto tls_gdld_hi; | |
| 13621 | break; | |
| 13622 | ||
| 411e1bfb AM |
13623 | case R_PPC64_GOT_TLSLD16_HI: |
| 13624 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 13625 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) |
| 411e1bfb | 13626 | { |
| 951fd09b AM |
13627 | tls_gdld_hi: |
| 13628 | if ((tls_mask & tls_gd) != 0) | |
| 13629 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13630 | + R_PPC64_GOT_TPREL16_DS); | |
| 13631 | else | |
| 411e1bfb | 13632 | { |
| 4fe5ca5b | 13633 | rel->r_offset -= d_offset; |
| 727ac201 | 13634 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| 951fd09b | 13635 | r_type = R_PPC64_NONE; |
| 411e1bfb | 13636 | } |
| 951fd09b | 13637 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb AM |
13638 | } |
| 13639 | break; | |
| 13640 | ||
| 951fd09b AM |
13641 | case R_PPC64_GOT_TLSGD16: |
| 13642 | case R_PPC64_GOT_TLSGD16_LO: | |
| 13643 | tls_gd = TLS_TPRELGD; | |
| 13644 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 102890f0 | 13645 | goto tls_ldgd_opt; |
| 951fd09b | 13646 | break; |
| 411e1bfb | 13647 | |
| 951fd09b AM |
13648 | case R_PPC64_GOT_TLSLD16: |
| 13649 | case R_PPC64_GOT_TLSLD16_LO: | |
| 13650 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13651 | { | |
| 3a71aa26 | 13652 | unsigned int insn1, insn2, insn3; |
| 102890f0 AM |
13653 | bfd_vma offset; |
| 13654 | ||
| 13655 | tls_ldgd_opt: | |
| 727fc41e AM |
13656 | offset = (bfd_vma) -1; |
| 13657 | /* If not using the newer R_PPC64_TLSGD/LD to mark | |
| 13658 | __tls_get_addr calls, we must trust that the call | |
| 13659 | stays with its arg setup insns, ie. that the next | |
| 13660 | reloc is the __tls_get_addr call associated with | |
| 13661 | the current reloc. Edit both insns. */ | |
| 13662 | if (input_section->has_tls_get_addr_call | |
| 13663 | && rel + 1 < relend | |
| 13664 | && branch_reloc_hash_match (input_bfd, rel + 1, | |
| 13665 | htab->tls_get_addr, | |
| 13666 | htab->tls_get_addr_fd)) | |
| 13667 | offset = rel[1].r_offset; | |
| b86ac8e3 AM |
13668 | /* We read the low GOT_TLS (or TOC16) insn because we |
| 13669 | need to keep the destination reg. It may be | |
| 13670 | something other than the usual r3, and moved to r3 | |
| 13671 | before the call by intervening code. */ | |
| 13672 | insn1 = bfd_get_32 (output_bfd, | |
| 13673 | contents + rel->r_offset - d_offset); | |
| 102890f0 | 13674 | if ((tls_mask & tls_gd) != 0) |
| 411e1bfb | 13675 | { |
| 102890f0 | 13676 | /* IE */ |
| b86ac8e3 | 13677 | insn1 &= (0x1f << 21) | (0x1f << 16); |
| 102890f0 AM |
13678 | insn1 |= 58 << 26; /* ld */ |
| 13679 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 727fc41e | 13680 | if (offset != (bfd_vma) -1) |
| f58d5a2d | 13681 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 102890f0 AM |
13682 | if ((tls_mask & TLS_EXPLICIT) == 0) |
| 13683 | r_type = (((r_type - (R_PPC64_GOT_TLSGD16 & 3)) & 3) | |
| 13684 | + R_PPC64_GOT_TPREL16_DS); | |
| 411e1bfb | 13685 | else |
| 102890f0 AM |
13686 | r_type += R_PPC64_TOC16_DS - R_PPC64_TOC16; |
| 13687 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13688 | } | |
| 13689 | else | |
| 13690 | { | |
| 13691 | /* LE */ | |
| b86ac8e3 AM |
13692 | insn1 &= 0x1f << 21; |
| 13693 | insn1 |= 0x3c0d0000; /* addis r,13,0 */ | |
| 102890f0 AM |
13694 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13695 | if (tls_gd == 0) | |
| 951fd09b | 13696 | { |
| 102890f0 | 13697 | /* Was an LD reloc. */ |
| 1d483afe AM |
13698 | if (toc_symndx) |
| 13699 | sec = local_sections[toc_symndx]; | |
| 13700 | for (r_symndx = 0; | |
| 13701 | r_symndx < symtab_hdr->sh_info; | |
| 13702 | r_symndx++) | |
| 13703 | if (local_sections[r_symndx] == sec) | |
| 13704 | break; | |
| 13705 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13706 | r_symndx = STN_UNDEF; |
| 102890f0 | 13707 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13708 | if (r_symndx != STN_UNDEF) |
| 1d483afe AM |
13709 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13710 | + sec->output_offset | |
| 13711 | + sec->output_section->vma); | |
| 951fd09b | 13712 | } |
| 102890f0 | 13713 | else if (toc_symndx != 0) |
| 3a71aa26 AM |
13714 | { |
| 13715 | r_symndx = toc_symndx; | |
| 13716 | rel->r_addend = toc_addend; | |
| 13717 | } | |
| 102890f0 AM |
13718 | r_type = R_PPC64_TPREL16_HA; |
| 13719 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 727fc41e AM |
13720 | if (offset != (bfd_vma) -1) |
| 13721 | { | |
| 13722 | rel[1].r_info = ELF64_R_INFO (r_symndx, | |
| 13723 | R_PPC64_TPREL16_LO); | |
| 13724 | rel[1].r_offset = offset + d_offset; | |
| 13725 | rel[1].r_addend = rel->r_addend; | |
| 13726 | } | |
| 102890f0 | 13727 | } |
| 3a71aa26 AM |
13728 | bfd_put_32 (output_bfd, insn1, |
| 13729 | contents + rel->r_offset - d_offset); | |
| 727fc41e AM |
13730 | if (offset != (bfd_vma) -1) |
| 13731 | { | |
| 13732 | insn3 = bfd_get_32 (output_bfd, | |
| 13733 | contents + offset + 4); | |
| 13734 | if (insn3 == NOP | |
| 13735 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13736 | { | |
| 13737 | rel[1].r_offset += 4; | |
| 13738 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13739 | insn2 = NOP; | |
| 13740 | } | |
| 13741 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| 13742 | } | |
| 13743 | if ((tls_mask & tls_gd) == 0 | |
| 13744 | && (tls_gd == 0 || toc_symndx != 0)) | |
| 13745 | { | |
| 13746 | /* We changed the symbol. Start over in order | |
| 13747 | to get h, sym, sec etc. right. */ | |
| c316a17c | 13748 | goto again; |
| 727fc41e AM |
13749 | } |
| 13750 | } | |
| 13751 | break; | |
| 13752 | ||
| 13753 | case R_PPC64_TLSGD: | |
| 13754 | if (tls_mask != 0 && (tls_mask & TLS_GD) == 0) | |
| 13755 | { | |
| 13756 | unsigned int insn2, insn3; | |
| 13757 | bfd_vma offset = rel->r_offset; | |
| 13758 | ||
| 13759 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13760 | { | |
| 13761 | /* IE */ | |
| 13762 | r_type = R_PPC64_NONE; | |
| 13763 | insn2 = 0x7c636a14; /* add 3,3,13 */ | |
| 13764 | } | |
| 13765 | else | |
| 13766 | { | |
| 13767 | /* LE */ | |
| 13768 | if (toc_symndx != 0) | |
| 13769 | { | |
| 13770 | r_symndx = toc_symndx; | |
| 13771 | rel->r_addend = toc_addend; | |
| 13772 | } | |
| 13773 | r_type = R_PPC64_TPREL16_LO; | |
| 13774 | rel->r_offset = offset + d_offset; | |
| 13775 | insn2 = 0x38630000; /* addi 3,3,0 */ | |
| 13776 | } | |
| 13777 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13778 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13779 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13780 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 3a71aa26 AM |
13781 | insn3 = bfd_get_32 (output_bfd, |
| 13782 | contents + offset + 4); | |
| 102890f0 AM |
13783 | if (insn3 == NOP |
| 13784 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13785 | { | |
| 727fc41e | 13786 | rel->r_offset += 4; |
| 3a71aa26 AM |
13787 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); |
| 13788 | insn2 = NOP; | |
| 102890f0 | 13789 | } |
| 102890f0 | 13790 | bfd_put_32 (output_bfd, insn2, contents + offset); |
| 727fc41e | 13791 | if ((tls_mask & TLS_TPRELGD) == 0 && toc_symndx != 0) |
| c316a17c | 13792 | goto again; |
| 411e1bfb | 13793 | } |
| 411e1bfb AM |
13794 | break; |
| 13795 | ||
| 727fc41e AM |
13796 | case R_PPC64_TLSLD: |
| 13797 | if (tls_mask != 0 && (tls_mask & TLS_LD) == 0) | |
| 13798 | { | |
| 13799 | unsigned int insn2, insn3; | |
| 13800 | bfd_vma offset = rel->r_offset; | |
| 13801 | ||
| 13802 | if (toc_symndx) | |
| 13803 | sec = local_sections[toc_symndx]; | |
| 13804 | for (r_symndx = 0; | |
| 13805 | r_symndx < symtab_hdr->sh_info; | |
| 13806 | r_symndx++) | |
| 13807 | if (local_sections[r_symndx] == sec) | |
| 13808 | break; | |
| 13809 | if (r_symndx >= symtab_hdr->sh_info) | |
| cf35638d | 13810 | r_symndx = STN_UNDEF; |
| 727fc41e | 13811 | rel->r_addend = htab->elf.tls_sec->vma + DTP_OFFSET; |
| cf35638d | 13812 | if (r_symndx != STN_UNDEF) |
| 727fc41e AM |
13813 | rel->r_addend -= (local_syms[r_symndx].st_value |
| 13814 | + sec->output_offset | |
| 13815 | + sec->output_section->vma); | |
| 13816 | ||
| 13817 | r_type = R_PPC64_TPREL16_LO; | |
| 13818 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13819 | rel->r_offset = offset + d_offset; | |
| 13820 | /* Zap the reloc on the _tls_get_addr call too. */ | |
| 13821 | BFD_ASSERT (offset == rel[1].r_offset); | |
| f58d5a2d | 13822 | rel[1].r_info = ELF64_R_INFO (STN_UNDEF, R_PPC64_NONE); |
| 727fc41e AM |
13823 | insn2 = 0x38630000; /* addi 3,3,0 */ |
| 13824 | insn3 = bfd_get_32 (output_bfd, | |
| 13825 | contents + offset + 4); | |
| 13826 | if (insn3 == NOP | |
| 13827 | || insn3 == CROR_151515 || insn3 == CROR_313131) | |
| 13828 | { | |
| 13829 | rel->r_offset += 4; | |
| 13830 | bfd_put_32 (output_bfd, insn2, contents + offset + 4); | |
| 13831 | insn2 = NOP; | |
| 13832 | } | |
| 13833 | bfd_put_32 (output_bfd, insn2, contents + offset); | |
| c316a17c | 13834 | goto again; |
| 727fc41e AM |
13835 | } |
| 13836 | break; | |
| 13837 | ||
| 411e1bfb | 13838 | case R_PPC64_DTPMOD64: |
| 951fd09b AM |
13839 | if (rel + 1 < relend |
| 13840 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_DTPREL64) | |
| 13841 | && rel[1].r_offset == rel->r_offset + 8) | |
| 411e1bfb | 13842 | { |
| 951fd09b AM |
13843 | if ((tls_mask & TLS_GD) == 0) |
| 13844 | { | |
| 13845 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_NONE); | |
| 13846 | if ((tls_mask & TLS_TPRELGD) != 0) | |
| 13847 | r_type = R_PPC64_TPREL64; | |
| 13848 | else | |
| 13849 | { | |
| 4ce794b7 | 13850 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 951fd09b AM |
13851 | r_type = R_PPC64_NONE; |
| 13852 | } | |
| 13853 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13854 | } | |
| 13855 | } | |
| 13856 | else | |
| 13857 | { | |
| 13858 | if ((tls_mask & TLS_LD) == 0) | |
| 411e1bfb | 13859 | { |
| 4ce794b7 | 13860 | bfd_put_64 (output_bfd, 1, contents + rel->r_offset); |
| 411e1bfb | 13861 | r_type = R_PPC64_NONE; |
| 951fd09b | 13862 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); |
| 411e1bfb | 13863 | } |
| 411e1bfb AM |
13864 | } |
| 13865 | break; | |
| 13866 | ||
| 13867 | case R_PPC64_TPREL64: | |
| 951fd09b | 13868 | if ((tls_mask & TLS_TPREL) == 0) |
| 411e1bfb AM |
13869 | { |
| 13870 | r_type = R_PPC64_NONE; | |
| 13871 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13872 | } | |
| 13873 | break; | |
| 52a82034 | 13874 | |
| 006589cf AM |
13875 | case R_PPC64_ENTRY: |
| 13876 | relocation = TOCstart + htab->sec_info[input_section->id].toc_off; | |
| 13877 | if (!bfd_link_pic (info) | |
| 13878 | && !info->traditional_format | |
| 13879 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13880 | { | |
| 13881 | unsigned int insn1, insn2; | |
| 13882 | ||
| 13883 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13884 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 13885 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 13886 | && insn2 == ADD_R2_R2_R12) | |
| 13887 | { | |
| 13888 | bfd_put_32 (output_bfd, | |
| 13889 | LIS_R2 + PPC_HA (relocation), | |
| 13890 | contents + rel->r_offset); | |
| 13891 | bfd_put_32 (output_bfd, | |
| 13892 | ADDI_R2_R2 + PPC_LO (relocation), | |
| 13893 | contents + rel->r_offset + 4); | |
| 13894 | } | |
| 13895 | } | |
| 13896 | else | |
| 13897 | { | |
| 13898 | relocation -= (rel->r_offset | |
| 13899 | + input_section->output_offset | |
| 13900 | + input_section->output_section->vma); | |
| 13901 | if (relocation + 0x80008000 <= 0xffffffff) | |
| 13902 | { | |
| 13903 | unsigned int insn1, insn2; | |
| 13904 | ||
| 13905 | insn1 = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13906 | insn2 = bfd_get_32 (input_bfd, contents + rel->r_offset + 4); | |
| 13907 | if ((insn1 & ~0xfffc) == LD_R2_0R12 | |
| 13908 | && insn2 == ADD_R2_R2_R12) | |
| 13909 | { | |
| 13910 | bfd_put_32 (output_bfd, | |
| 13911 | ADDIS_R2_R12 + PPC_HA (relocation), | |
| 13912 | contents + rel->r_offset); | |
| 13913 | bfd_put_32 (output_bfd, | |
| 13914 | ADDI_R2_R2 + PPC_LO (relocation), | |
| 13915 | contents + rel->r_offset + 4); | |
| 13916 | } | |
| 13917 | } | |
| 13918 | } | |
| 13919 | break; | |
| 13920 | ||
| 52a82034 AM |
13921 | case R_PPC64_REL16_HA: |
| 13922 | /* If we are generating a non-PIC executable, edit | |
| 13923 | . 0: addis 2,12,.TOC.-0b@ha | |
| 13924 | . addi 2,2,.TOC.-0b@l | |
| 13925 | used by ELFv2 global entry points to set up r2, to | |
| 13926 | . lis 2,.TOC.@ha | |
| 13927 | . addi 2,2,.TOC.@l | |
| 13928 | if .TOC. is in range. */ | |
| 0e1862bb | 13929 | if (!bfd_link_pic (info) |
| 810d4e75 | 13930 | && !info->traditional_format |
| 006589cf | 13931 | && !htab->opd_abi |
| 4f038ee5 | 13932 | && rel->r_addend == d_offset |
| 52a82034 AM |
13933 | && h != NULL && &h->elf == htab->elf.hgot |
| 13934 | && rel + 1 < relend | |
| 13935 | && rel[1].r_info == ELF64_R_INFO (r_symndx, R_PPC64_REL16_LO) | |
| 13936 | && rel[1].r_offset == rel->r_offset + 4 | |
| 13937 | && rel[1].r_addend == rel->r_addend + 4 | |
| 13938 | && relocation + 0x80008000 <= 0xffffffff) | |
| 13939 | { | |
| 13940 | unsigned int insn1, insn2; | |
| 13941 | bfd_vma offset = rel->r_offset - d_offset; | |
| 13942 | insn1 = bfd_get_32 (output_bfd, contents + offset); | |
| 13943 | insn2 = bfd_get_32 (output_bfd, contents + offset + 4); | |
| 006589cf AM |
13944 | if ((insn1 & 0xffff0000) == ADDIS_R2_R12 |
| 13945 | && (insn2 & 0xffff0000) == ADDI_R2_R2) | |
| 52a82034 AM |
13946 | { |
| 13947 | r_type = R_PPC64_ADDR16_HA; | |
| 13948 | rel->r_info = ELF64_R_INFO (r_symndx, r_type); | |
| 13949 | rel->r_addend -= d_offset; | |
| 13950 | rel[1].r_info = ELF64_R_INFO (r_symndx, R_PPC64_ADDR16_LO); | |
| 13951 | rel[1].r_addend -= d_offset + 4; | |
| 006589cf | 13952 | bfd_put_32 (output_bfd, LIS_R2, contents + offset); |
| 52a82034 AM |
13953 | } |
| 13954 | } | |
| 13955 | break; | |
| 411e1bfb AM |
13956 | } |
| 13957 | ||
| 13958 | /* Handle other relocations that tweak non-addend part of insn. */ | |
| 86c76c7b | 13959 | insn = 0; |
| b25116a9 AM |
13960 | max_br_offset = 1 << 25; |
| 13961 | addend = rel->r_addend; | |
| bc30df16 | 13962 | reloc_dest = DEST_NORMAL; |
| 65f38f15 | 13963 | switch (r_type) |
| 5bd4f169 AM |
13964 | { |
| 13965 | default: | |
| 65f38f15 | 13966 | break; |
| 5bd4f169 | 13967 | |
| 3b421ab3 AM |
13968 | case R_PPC64_TOCSAVE: |
| 13969 | if (relocation + addend == (rel->r_offset | |
| 13970 | + input_section->output_offset | |
| 13971 | + input_section->output_section->vma) | |
| 13972 | && tocsave_find (htab, NO_INSERT, | |
| 13973 | &local_syms, rel, input_bfd)) | |
| 13974 | { | |
| 13975 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 13976 | if (insn == NOP | |
| 13977 | || insn == CROR_151515 || insn == CROR_313131) | |
| a078d95a AM |
13978 | bfd_put_32 (input_bfd, |
| 13979 | STD_R2_0R1 + STK_TOC (htab), | |
| 3b421ab3 AM |
13980 | contents + rel->r_offset); |
| 13981 | } | |
| 13982 | break; | |
| 13983 | ||
| 65f38f15 AM |
13984 | /* Branch taken prediction relocations. */ |
| 13985 | case R_PPC64_ADDR14_BRTAKEN: | |
| 13986 | case R_PPC64_REL14_BRTAKEN: | |
| cedb70c5 KH |
13987 | insn = 0x01 << 21; /* 'y' or 't' bit, lowest bit of BO field. */ |
| 13988 | /* Fall thru. */ | |
| 65f38f15 | 13989 | |
| 86c76c7b | 13990 | /* Branch not taken prediction relocations. */ |
| 65f38f15 AM |
13991 | case R_PPC64_ADDR14_BRNTAKEN: |
| 13992 | case R_PPC64_REL14_BRNTAKEN: | |
| 411e1bfb AM |
13993 | insn |= bfd_get_32 (output_bfd, |
| 13994 | contents + rel->r_offset) & ~(0x01 << 21); | |
| b25116a9 | 13995 | /* Fall thru. */ |
| 86c76c7b | 13996 | |
| b25116a9 AM |
13997 | case R_PPC64_REL14: |
| 13998 | max_br_offset = 1 << 15; | |
| 13999 | /* Fall thru. */ | |
| 5bd4f169 | 14000 | |
| 65f38f15 | 14001 | case R_PPC64_REL24: |
| ad8e1ba5 AM |
14002 | /* Calls to functions with a different TOC, such as calls to |
| 14003 | shared objects, need to alter the TOC pointer. This is | |
| 14004 | done using a linkage stub. A REL24 branching to these | |
| 14005 | linkage stubs needs to be followed by a nop, as the nop | |
| 14006 | will be replaced with an instruction to restore the TOC | |
| 14007 | base pointer. */ | |
| 8387904d | 14008 | fdh = h; |
| b31867b6 AM |
14009 | if (h != NULL |
| 14010 | && h->oh != NULL | |
| 14011 | && h->oh->is_func_descriptor) | |
| 14012 | fdh = ppc_follow_link (h->oh); | |
| 31c76678 DK |
14013 | stub_entry = ppc_get_stub_entry (input_section, sec, fdh, &orig_rel, |
| 14014 | htab); | |
| 6abec6bc | 14015 | if (stub_entry != NULL |
| ad8e1ba5 | 14016 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 794e51c0 | 14017 | || stub_entry->stub_type == ppc_stub_plt_call_r2save |
| ad8e1ba5 AM |
14018 | || stub_entry->stub_type == ppc_stub_plt_branch_r2off |
| 14019 | || stub_entry->stub_type == ppc_stub_long_branch_r2off)) | |
| 41bd81ab | 14020 | { |
| b25116a9 | 14021 | bfd_boolean can_plt_call = FALSE; |
| 721956f4 | 14022 | |
| ba8ca3e7 AM |
14023 | /* All of these stubs will modify r2, so there must be a |
| 14024 | branch and link followed by a nop. The nop is | |
| 14025 | replaced by an insn to restore r2. */ | |
| eea6121a | 14026 | if (rel->r_offset + 8 <= input_section->size) |
| 41bd81ab | 14027 | { |
| ba8ca3e7 AM |
14028 | unsigned long br; |
| 14029 | ||
| 14030 | br = bfd_get_32 (input_bfd, | |
| 14031 | contents + rel->r_offset); | |
| 14032 | if ((br & 1) != 0) | |
| 41bd81ab | 14033 | { |
| ba8ca3e7 AM |
14034 | unsigned long nop; |
| 14035 | ||
| 14036 | nop = bfd_get_32 (input_bfd, | |
| 14037 | contents + rel->r_offset + 4); | |
| 14038 | if (nop == NOP | |
| 14039 | || nop == CROR_151515 || nop == CROR_313131) | |
| a7f2871e | 14040 | { |
| ba8ca3e7 AM |
14041 | if (h != NULL |
| 14042 | && (h == htab->tls_get_addr_fd | |
| 14043 | || h == htab->tls_get_addr) | |
| 7c9cf415 | 14044 | && htab->params->tls_get_addr_opt) |
| ba8ca3e7 AM |
14045 | { |
| 14046 | /* Special stub used, leave nop alone. */ | |
| 14047 | } | |
| 14048 | else | |
| a078d95a AM |
14049 | bfd_put_32 (input_bfd, |
| 14050 | LD_R2_0R1 + STK_TOC (htab), | |
| ba8ca3e7 AM |
14051 | contents + rel->r_offset + 4); |
| 14052 | can_plt_call = TRUE; | |
| a7f2871e | 14053 | } |
| 41bd81ab | 14054 | } |
| 5bd4f169 | 14055 | } |
| 721956f4 | 14056 | |
| ba8ca3e7 | 14057 | if (!can_plt_call && h != NULL) |
| 721956f4 | 14058 | { |
| ba8ca3e7 AM |
14059 | const char *name = h->elf.root.root.string; |
| 14060 | ||
| 14061 | if (*name == '.') | |
| 14062 | ++name; | |
| 14063 | ||
| 14064 | if (strncmp (name, "__libc_start_main", 17) == 0 | |
| 14065 | && (name[17] == 0 || name[17] == '@')) | |
| 6ab189d5 | 14066 | { |
| ba8ca3e7 AM |
14067 | /* Allow crt1 branch to go via a toc adjusting |
| 14068 | stub. Other calls that never return could do | |
| 14069 | the same, if we could detect such. */ | |
| b25116a9 | 14070 | can_plt_call = TRUE; |
| 6ab189d5 | 14071 | } |
| ba8ca3e7 AM |
14072 | } |
| 14073 | ||
| 14074 | if (!can_plt_call) | |
| 14075 | { | |
| 14076 | /* g++ as of 20130507 emits self-calls without a | |
| 14077 | following nop. This is arguably wrong since we | |
| 14078 | have conflicting information. On the one hand a | |
| 14079 | global symbol and on the other a local call | |
| 14080 | sequence, but don't error for this special case. | |
| 14081 | It isn't possible to cheaply verify we have | |
| 14082 | exactly such a call. Allow all calls to the same | |
| 14083 | section. */ | |
| 14084 | asection *code_sec = sec; | |
| 14085 | ||
| 14086 | if (get_opd_info (sec) != NULL) | |
| ad8e1ba5 | 14087 | { |
| ba8ca3e7 AM |
14088 | bfd_vma off = (relocation + addend |
| 14089 | - sec->output_section->vma | |
| 14090 | - sec->output_offset); | |
| bc30df16 | 14091 | |
| ba8ca3e7 | 14092 | opd_entry_value (sec, off, &code_sec, NULL, FALSE); |
| ad8e1ba5 | 14093 | } |
| ba8ca3e7 AM |
14094 | if (code_sec == input_section) |
| 14095 | can_plt_call = TRUE; | |
| 14096 | } | |
| 14097 | ||
| 14098 | if (!can_plt_call) | |
| 14099 | { | |
| 4805fc55 AM |
14100 | if (stub_entry->stub_type == ppc_stub_plt_call |
| 14101 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14102 | info->callbacks->einfo | |
| 14103 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 14104 | "recompile with -fPIC\n"), | |
| 14105 | input_bfd, input_section, rel->r_offset, sym_name); | |
| 14106 | else | |
| 14107 | info->callbacks->einfo | |
| 14108 | (_("%P: %H: call to `%T' lacks nop, can't restore toc; " | |
| 14109 | "(-mcmodel=small toc adjust stub)\n"), | |
| 14110 | input_bfd, input_section, rel->r_offset, sym_name); | |
| ba8ca3e7 AM |
14111 | |
| 14112 | bfd_set_error (bfd_error_bad_value); | |
| 14113 | ret = FALSE; | |
| 721956f4 AM |
14114 | } |
| 14115 | ||
| b25116a9 | 14116 | if (can_plt_call |
| 794e51c0 AM |
14117 | && (stub_entry->stub_type == ppc_stub_plt_call |
| 14118 | || stub_entry->stub_type == ppc_stub_plt_call_r2save)) | |
| b25116a9 AM |
14119 | unresolved_reloc = FALSE; |
| 14120 | } | |
| 14121 | ||
| 6abec6bc AM |
14122 | if ((stub_entry == NULL |
| 14123 | || stub_entry->stub_type == ppc_stub_long_branch | |
| 14124 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 8387904d AM |
14125 | && get_opd_info (sec) != NULL) |
| 14126 | { | |
| 14127 | /* The branch destination is the value of the opd entry. */ | |
| 4cc603a5 AM |
14128 | bfd_vma off = (relocation + addend |
| 14129 | - sec->output_section->vma | |
| 14130 | - sec->output_offset); | |
| aef36ac1 | 14131 | bfd_vma dest = opd_entry_value (sec, off, NULL, NULL, FALSE); |
| 8387904d AM |
14132 | if (dest != (bfd_vma) -1) |
| 14133 | { | |
| 14134 | relocation = dest; | |
| 14135 | addend = 0; | |
| bc30df16 | 14136 | reloc_dest = DEST_OPD; |
| 8387904d AM |
14137 | } |
| 14138 | } | |
| 14139 | ||
| b25116a9 AM |
14140 | /* If the branch is out of reach we ought to have a long |
| 14141 | branch stub. */ | |
| 14142 | from = (rel->r_offset | |
| 14143 | + input_section->output_offset | |
| 14144 | + input_section->output_section->vma); | |
| 14145 | ||
| 6911b7dc AM |
14146 | relocation += PPC64_LOCAL_ENTRY_OFFSET (fdh |
| 14147 | ? fdh->elf.other | |
| 14148 | : sym->st_other); | |
| 14149 | ||
| 6abec6bc AM |
14150 | if (stub_entry != NULL |
| 14151 | && (stub_entry->stub_type == ppc_stub_long_branch | |
| 14152 | || stub_entry->stub_type == ppc_stub_plt_branch) | |
| 14153 | && (r_type == R_PPC64_ADDR14_BRTAKEN | |
| 14154 | || r_type == R_PPC64_ADDR14_BRNTAKEN | |
| 14155 | || (relocation + addend - from + max_br_offset | |
| 14156 | < 2 * max_br_offset))) | |
| 14157 | /* Don't use the stub if this branch is in range. */ | |
| 14158 | stub_entry = NULL; | |
| b25116a9 AM |
14159 | |
| 14160 | if (stub_entry != NULL) | |
| 14161 | { | |
| 14162 | /* Munge up the value and addend so that we call the stub | |
| 14163 | rather than the procedure directly. */ | |
| a4b6fadd AM |
14164 | asection *stub_sec = stub_entry->group->stub_sec; |
| 14165 | ||
| 14166 | if (stub_entry->stub_type == ppc_stub_save_res) | |
| 14167 | relocation += (stub_sec->output_offset | |
| 14168 | + stub_sec->output_section->vma | |
| 14169 | + stub_sec->size - htab->sfpr->size | |
| 14170 | - htab->sfpr->output_offset | |
| 14171 | - htab->sfpr->output_section->vma); | |
| 14172 | else | |
| 14173 | relocation = (stub_entry->stub_offset | |
| 14174 | + stub_sec->output_offset | |
| 14175 | + stub_sec->output_section->vma); | |
| b25116a9 | 14176 | addend = 0; |
| bc30df16 | 14177 | reloc_dest = DEST_STUB; |
| 3b421ab3 | 14178 | |
| 794e51c0 AM |
14179 | if ((stub_entry->stub_type == ppc_stub_plt_call |
| 14180 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 14181 | && (ALWAYS_EMIT_R2SAVE | |
| 14182 | || stub_entry->stub_type == ppc_stub_plt_call_r2save) | |
| 3b421ab3 AM |
14183 | && rel + 1 < relend |
| 14184 | && rel[1].r_offset == rel->r_offset + 4 | |
| 14185 | && ELF64_R_TYPE (rel[1].r_info) == R_PPC64_TOCSAVE) | |
| 14186 | relocation += 4; | |
| b25116a9 AM |
14187 | } |
| 14188 | ||
| 14189 | if (insn != 0) | |
| 14190 | { | |
| 794e51c0 | 14191 | if (is_isa_v2) |
| 721956f4 | 14192 | { |
| b25116a9 AM |
14193 | /* Set 'a' bit. This is 0b00010 in BO field for branch |
| 14194 | on CR(BI) insns (BO == 001at or 011at), and 0b01000 | |
| 14195 | for branch on CTR insns (BO == 1a00t or 1a01t). */ | |
| 14196 | if ((insn & (0x14 << 21)) == (0x04 << 21)) | |
| 14197 | insn |= 0x02 << 21; | |
| 14198 | else if ((insn & (0x14 << 21)) == (0x10 << 21)) | |
| 14199 | insn |= 0x08 << 21; | |
| 14200 | else | |
| 14201 | break; | |
| 14202 | } | |
| 14203 | else | |
| 14204 | { | |
| 14205 | /* Invert 'y' bit if not the default. */ | |
| 4cc603a5 | 14206 | if ((bfd_signed_vma) (relocation + addend - from) < 0) |
| b25116a9 | 14207 | insn ^= 0x01 << 21; |
| 721956f4 | 14208 | } |
| b25116a9 AM |
14209 | |
| 14210 | bfd_put_32 (output_bfd, insn, contents + rel->r_offset); | |
| 5bd4f169 | 14211 | } |
| e86ce104 | 14212 | |
| 06da1e8e AM |
14213 | /* NOP out calls to undefined weak functions. |
| 14214 | We can thus call a weak function without first | |
| 14215 | checking whether the function is defined. */ | |
| b25116a9 | 14216 | else if (h != NULL |
| 039b3fef | 14217 | && h->elf.root.type == bfd_link_hash_undefweak |
| 766bc656 | 14218 | && h->elf.dynindx == -1 |
| b25116a9 AM |
14219 | && r_type == R_PPC64_REL24 |
| 14220 | && relocation == 0 | |
| 4cc603a5 | 14221 | && addend == 0) |
| e86ce104 | 14222 | { |
| 06da1e8e | 14223 | bfd_put_32 (output_bfd, NOP, contents + rel->r_offset); |
| c316a17c | 14224 | goto copy_reloc; |
| e86ce104 | 14225 | } |
| 65f38f15 AM |
14226 | break; |
| 14227 | } | |
| 5bd4f169 | 14228 | |
| 65f38f15 | 14229 | /* Set `addend'. */ |
| 411e1bfb | 14230 | tls_type = 0; |
| 65f38f15 AM |
14231 | switch (r_type) |
| 14232 | { | |
| 14233 | default: | |
| 25f53a85 | 14234 | info->callbacks->einfo |
| bc30df16 | 14235 | (_("%P: %B: unknown relocation type %d for `%T'\n"), |
| d003868e | 14236 | input_bfd, (int) r_type, sym_name); |
| 5bd4f169 | 14237 | |
| 65f38f15 | 14238 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 14239 | ret = FALSE; |
| c316a17c | 14240 | goto copy_reloc; |
| 5bd4f169 | 14241 | |
| 65f38f15 | 14242 | case R_PPC64_NONE: |
| 411e1bfb | 14243 | case R_PPC64_TLS: |
| 727fc41e AM |
14244 | case R_PPC64_TLSGD: |
| 14245 | case R_PPC64_TLSLD: | |
| 3b421ab3 | 14246 | case R_PPC64_TOCSAVE: |
| 04c9666a AM |
14247 | case R_PPC64_GNU_VTINHERIT: |
| 14248 | case R_PPC64_GNU_VTENTRY: | |
| 006589cf | 14249 | case R_PPC64_ENTRY: |
| c316a17c | 14250 | goto copy_reloc; |
| 5bd4f169 AM |
14251 | |
| 14252 | /* GOT16 relocations. Like an ADDR16 using the symbol's | |
| 14253 | address in the GOT as relocation value instead of the | |
| 411e1bfb | 14254 | symbol's value itself. Also, create a GOT entry for the |
| 5bd4f169 | 14255 | symbol and put the symbol value there. */ |
| 411e1bfb AM |
14256 | case R_PPC64_GOT_TLSGD16: |
| 14257 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14258 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14259 | case R_PPC64_GOT_TLSGD16_HA: | |
| 951fd09b | 14260 | tls_type = TLS_TLS | TLS_GD; |
| 411e1bfb AM |
14261 | goto dogot; |
| 14262 | ||
| 14263 | case R_PPC64_GOT_TLSLD16: | |
| 14264 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14265 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14266 | case R_PPC64_GOT_TLSLD16_HA: | |
| 951fd09b | 14267 | tls_type = TLS_TLS | TLS_LD; |
| 411e1bfb AM |
14268 | goto dogot; |
| 14269 | ||
| 14270 | case R_PPC64_GOT_TPREL16_DS: | |
| 14271 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14272 | case R_PPC64_GOT_TPREL16_HI: | |
| 14273 | case R_PPC64_GOT_TPREL16_HA: | |
| 14274 | tls_type = TLS_TLS | TLS_TPREL; | |
| 14275 | goto dogot; | |
| 14276 | ||
| 14277 | case R_PPC64_GOT_DTPREL16_DS: | |
| 14278 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14279 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14280 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14281 | tls_type = TLS_TLS | TLS_DTPREL; | |
| 14282 | goto dogot; | |
| 14283 | ||
| 65f38f15 AM |
14284 | case R_PPC64_GOT16: |
| 14285 | case R_PPC64_GOT16_LO: | |
| 14286 | case R_PPC64_GOT16_HI: | |
| 14287 | case R_PPC64_GOT16_HA: | |
| 14288 | case R_PPC64_GOT16_DS: | |
| 14289 | case R_PPC64_GOT16_LO_DS: | |
| 411e1bfb | 14290 | dogot: |
| 5bd4f169 AM |
14291 | { |
| 14292 | /* Relocation is to the entry for this symbol in the global | |
| 14293 | offset table. */ | |
| e717da7e | 14294 | asection *got; |
| d881513a | 14295 | bfd_vma *offp; |
| 5bd4f169 | 14296 | bfd_vma off; |
| d881513a | 14297 | unsigned long indx = 0; |
| 927be08e | 14298 | struct got_entry *ent; |
| 65f38f15 | 14299 | |
| d881513a AM |
14300 | if (tls_type == (TLS_TLS | TLS_LD) |
| 14301 | && (h == NULL | |
| f5385ebf | 14302 | || !h->elf.def_dynamic)) |
| 927be08e | 14303 | ent = ppc64_tlsld_got (input_bfd); |
| 411e1bfb | 14304 | else |
| 5bd4f169 | 14305 | { |
| 5bd4f169 | 14306 | |
| d881513a AM |
14307 | if (h != NULL) |
| 14308 | { | |
| 14309 | bfd_boolean dyn = htab->elf.dynamic_sections_created; | |
| 0e1862bb | 14310 | if (!WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, bfd_link_pic (info), |
| 039b3fef | 14311 | &h->elf) |
| 0e1862bb | 14312 | || (bfd_link_pic (info) |
| afe397ea | 14313 | && SYMBOL_REFERENCES_LOCAL (info, &h->elf))) |
| d881513a AM |
14314 | /* This is actually a static link, or it is a |
| 14315 | -Bsymbolic link and the symbol is defined | |
| 14316 | locally, or the symbol was forced to be local | |
| 14317 | because of a version file. */ | |
| 14318 | ; | |
| 14319 | else | |
| 14320 | { | |
| 14acf4dc | 14321 | BFD_ASSERT (h->elf.dynindx != -1); |
| 039b3fef | 14322 | indx = h->elf.dynindx; |
| d881513a AM |
14323 | unresolved_reloc = FALSE; |
| 14324 | } | |
| 039b3fef | 14325 | ent = h->elf.got.glist; |
| d881513a | 14326 | } |
| 411e1bfb | 14327 | else |
| 5bd4f169 | 14328 | { |
| d881513a AM |
14329 | if (local_got_ents == NULL) |
| 14330 | abort (); | |
| 14331 | ent = local_got_ents[r_symndx]; | |
| 5bd4f169 | 14332 | } |
| d881513a AM |
14333 | |
| 14334 | for (; ent != NULL; ent = ent->next) | |
| 31c76678 | 14335 | if (ent->addend == orig_rel.r_addend |
| e717da7e | 14336 | && ent->owner == input_bfd |
| d881513a AM |
14337 | && ent->tls_type == tls_type) |
| 14338 | break; | |
| 5bd4f169 | 14339 | } |
| 411e1bfb | 14340 | |
| 927be08e AM |
14341 | if (ent == NULL) |
| 14342 | abort (); | |
| 14343 | if (ent->is_indirect) | |
| 14344 | ent = ent->got.ent; | |
| 14345 | offp = &ent->got.offset; | |
| 14346 | got = ppc64_elf_tdata (ent->owner)->got; | |
| e717da7e AM |
14347 | if (got == NULL) |
| 14348 | abort (); | |
| 14349 | ||
| 411e1bfb AM |
14350 | /* The offset must always be a multiple of 8. We use the |
| 14351 | least significant bit to record whether we have already | |
| 14352 | processed this entry. */ | |
| d881513a | 14353 | off = *offp; |
| 411e1bfb AM |
14354 | if ((off & 1) != 0) |
| 14355 | off &= ~1; | |
| 5bd4f169 AM |
14356 | else |
| 14357 | { | |
| 411e1bfb AM |
14358 | /* Generate relocs for the dynamic linker, except in |
| 14359 | the case of TLSLD where we'll use one entry per | |
| 14360 | module. */ | |
| 25f23106 AM |
14361 | asection *relgot; |
| 14362 | bfd_boolean ifunc; | |
| e717da7e | 14363 | |
| d881513a | 14364 | *offp = off | 1; |
| 25f23106 AM |
14365 | relgot = NULL; |
| 14366 | ifunc = (h != NULL | |
| 14367 | ? h->elf.type == STT_GNU_IFUNC | |
| 14368 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC); | |
| 19e08130 | 14369 | if (ifunc) |
| 33e44f2e | 14370 | relgot = htab->elf.irelplt; |
| 0e1862bb | 14371 | else if ((bfd_link_pic (info) || indx != 0) |
| 19e08130 AM |
14372 | && (h == NULL |
| 14373 | || (tls_type == (TLS_TLS | TLS_LD) | |
| 14374 | && !h->elf.def_dynamic) | |
| 14375 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT | |
| 14376 | || h->elf.root.type != bfd_link_hash_undefweak)) | |
| 14377 | relgot = ppc64_elf_tdata (ent->owner)->relgot; | |
| 25f23106 | 14378 | if (relgot != NULL) |
| 5bd4f169 | 14379 | { |
| e717da7e AM |
14380 | outrel.r_offset = (got->output_section->vma |
| 14381 | + got->output_offset | |
| 411e1bfb | 14382 | + off); |
| 4cc603a5 | 14383 | outrel.r_addend = addend; |
| d881513a | 14384 | if (tls_type & (TLS_LD | TLS_GD)) |
| 5bd4f169 | 14385 | { |
| 411e1bfb | 14386 | outrel.r_addend = 0; |
| e515b051 | 14387 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPMOD64); |
| d881513a AM |
14388 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14389 | { | |
| e717da7e AM |
14390 | loc = relgot->contents; |
| 14391 | loc += (relgot->reloc_count++ | |
| d881513a AM |
14392 | * sizeof (Elf64_External_Rela)); |
| 14393 | bfd_elf64_swap_reloca_out (output_bfd, | |
| 14394 | &outrel, loc); | |
| e515b051 | 14395 | outrel.r_offset += 8; |
| 4cc603a5 | 14396 | outrel.r_addend = addend; |
| d881513a AM |
14397 | outrel.r_info |
| 14398 | = ELF64_R_INFO (indx, R_PPC64_DTPREL64); | |
| d881513a | 14399 | } |
| 411e1bfb | 14400 | } |
| 951fd09b | 14401 | else if (tls_type == (TLS_TLS | TLS_DTPREL)) |
| 411e1bfb | 14402 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_DTPREL64); |
| 951fd09b | 14403 | else if (tls_type == (TLS_TLS | TLS_TPREL)) |
| 411e1bfb | 14404 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_TPREL64); |
| 25f23106 AM |
14405 | else if (indx != 0) |
| 14406 | outrel.r_info = ELF64_R_INFO (indx, R_PPC64_GLOB_DAT); | |
| 14407 | else | |
| 81407a69 | 14408 | { |
| 25f23106 AM |
14409 | if (ifunc) |
| 14410 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14411 | else | |
| 14412 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 AM |
14413 | |
| 14414 | /* Write the .got section contents for the sake | |
| 14415 | of prelink. */ | |
| e717da7e | 14416 | loc = got->contents + off; |
| 23fbd6fa JJ |
14417 | bfd_put_64 (output_bfd, outrel.r_addend + relocation, |
| 14418 | loc); | |
| 81407a69 | 14419 | } |
| 81407a69 AM |
14420 | |
| 14421 | if (indx == 0 && tls_type != (TLS_TLS | TLS_LD)) | |
| e515b051 AM |
14422 | { |
| 14423 | outrel.r_addend += relocation; | |
| 14424 | if (tls_type & (TLS_GD | TLS_DTPREL | TLS_TPREL)) | |
| 989f9879 AM |
14425 | { |
| 14426 | if (htab->elf.tls_sec == NULL) | |
| 14427 | outrel.r_addend = 0; | |
| 14428 | else | |
| 14429 | outrel.r_addend -= htab->elf.tls_sec->vma; | |
| 14430 | } | |
| e515b051 | 14431 | } |
| e717da7e AM |
14432 | loc = relgot->contents; |
| 14433 | loc += (relgot->reloc_count++ | |
| 411e1bfb AM |
14434 | * sizeof (Elf64_External_Rela)); |
| 14435 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); | |
| 14436 | } | |
| 14437 | ||
| ad8e1ba5 | 14438 | /* Init the .got section contents here if we're not |
| 81407a69 | 14439 | emitting a reloc. */ |
| d881513a | 14440 | else |
| 411e1bfb | 14441 | { |
| 4cc603a5 | 14442 | relocation += addend; |
| 7b609f53 AM |
14443 | if (tls_type == (TLS_TLS | TLS_LD)) |
| 14444 | relocation = 1; | |
| 14445 | else if (tls_type != 0) | |
| 411e1bfb | 14446 | { |
| 989f9879 AM |
14447 | if (htab->elf.tls_sec == NULL) |
| 14448 | relocation = 0; | |
| 14449 | else | |
| 14450 | { | |
| 14451 | relocation -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 14452 | if (tls_type == (TLS_TLS | TLS_TPREL)) | |
| 14453 | relocation += DTP_OFFSET - TP_OFFSET; | |
| 14454 | } | |
| 5bd4f169 | 14455 | |
| 7b609f53 AM |
14456 | if (tls_type == (TLS_TLS | TLS_GD)) |
| 14457 | { | |
| 14458 | bfd_put_64 (output_bfd, relocation, | |
| e717da7e | 14459 | got->contents + off + 8); |
| 7b609f53 AM |
14460 | relocation = 1; |
| 14461 | } | |
| 411e1bfb | 14462 | } |
| 7b609f53 | 14463 | |
| 411e1bfb | 14464 | bfd_put_64 (output_bfd, relocation, |
| e717da7e | 14465 | got->contents + off); |
| 5bd4f169 AM |
14466 | } |
| 14467 | } | |
| 14468 | ||
| 65f38f15 AM |
14469 | if (off >= (bfd_vma) -2) |
| 14470 | abort (); | |
| 14471 | ||
| bf102f86 | 14472 | relocation = got->output_section->vma + got->output_offset + off; |
| 6f20ed8a | 14473 | addend = -(TOCstart + htab->sec_info[input_section->id].toc_off); |
| 5bd4f169 | 14474 | } |
| 65f38f15 AM |
14475 | break; |
| 14476 | ||
| 14477 | case R_PPC64_PLT16_HA: | |
| 14478 | case R_PPC64_PLT16_HI: | |
| 14479 | case R_PPC64_PLT16_LO: | |
| 14480 | case R_PPC64_PLT32: | |
| 14481 | case R_PPC64_PLT64: | |
| 14482 | /* Relocation is to the entry for this symbol in the | |
| 14483 | procedure linkage table. */ | |
| cbf95972 AM |
14484 | { |
| 14485 | struct plt_entry **plt_list = NULL; | |
| 14486 | if (h != NULL) | |
| 14487 | plt_list = &h->elf.plt.plist; | |
| 14488 | else if (local_got_ents != NULL) | |
| 14489 | { | |
| 14490 | struct plt_entry **local_plt = (struct plt_entry **) | |
| 14491 | (local_got_ents + symtab_hdr->sh_info); | |
| 14492 | unsigned char *local_got_tls_masks = (unsigned char *) | |
| 14493 | (local_plt + symtab_hdr->sh_info); | |
| 14494 | if ((local_got_tls_masks[r_symndx] & PLT_IFUNC) != 0) | |
| 14495 | plt_list = local_plt + r_symndx; | |
| 14496 | } | |
| 14497 | if (plt_list) | |
| 14498 | { | |
| 14499 | struct plt_entry *ent; | |
| 65f38f15 | 14500 | |
| cbf95972 AM |
14501 | for (ent = *plt_list; ent != NULL; ent = ent->next) |
| 14502 | if (ent->plt.offset != (bfd_vma) -1 | |
| 14503 | && ent->addend == orig_rel.r_addend) | |
| 14504 | { | |
| 14505 | asection *plt; | |
| 14506 | ||
| 14507 | plt = htab->elf.splt; | |
| 14508 | if (!htab->elf.dynamic_sections_created | |
| 14509 | || h == NULL | |
| 14510 | || h->elf.dynindx == -1) | |
| 14511 | plt = htab->elf.iplt; | |
| 14512 | relocation = (plt->output_section->vma | |
| 14513 | + plt->output_offset | |
| 14514 | + ent->plt.offset); | |
| 14515 | addend = 0; | |
| 14516 | unresolved_reloc = FALSE; | |
| 14517 | break; | |
| 14518 | } | |
| 14519 | } | |
| 14520 | } | |
| 65f38f15 | 14521 | break; |
| 5bd4f169 | 14522 | |
| 0b13192e AM |
14523 | case R_PPC64_TOC: |
| 14524 | /* Relocation value is TOC base. */ | |
| 14525 | relocation = TOCstart; | |
| cf35638d | 14526 | if (r_symndx == STN_UNDEF) |
| 6f20ed8a | 14527 | relocation += htab->sec_info[input_section->id].toc_off; |
| 8517fae7 AM |
14528 | else if (unresolved_reloc) |
| 14529 | ; | |
| 6f20ed8a AM |
14530 | else if (sec != NULL && sec->id < htab->sec_info_arr_size) |
| 14531 | relocation += htab->sec_info[sec->id].toc_off; | |
| 0b13192e AM |
14532 | else |
| 14533 | unresolved_reloc = TRUE; | |
| ab96bf03 | 14534 | goto dodyn; |
| 0b13192e | 14535 | |
| 5bd4f169 AM |
14536 | /* TOC16 relocs. We want the offset relative to the TOC base, |
| 14537 | which is the address of the start of the TOC plus 0x8000. | |
| 14538 | The TOC consists of sections .got, .toc, .tocbss, and .plt, | |
| 14539 | in this order. */ | |
| 65f38f15 AM |
14540 | case R_PPC64_TOC16: |
| 14541 | case R_PPC64_TOC16_LO: | |
| 14542 | case R_PPC64_TOC16_HI: | |
| 14543 | case R_PPC64_TOC16_DS: | |
| 14544 | case R_PPC64_TOC16_LO_DS: | |
| 14545 | case R_PPC64_TOC16_HA: | |
| 6f20ed8a | 14546 | addend -= TOCstart + htab->sec_info[input_section->id].toc_off; |
| 5bd4f169 AM |
14547 | break; |
| 14548 | ||
| 14549 | /* Relocate against the beginning of the section. */ | |
| 65f38f15 AM |
14550 | case R_PPC64_SECTOFF: |
| 14551 | case R_PPC64_SECTOFF_LO: | |
| 14552 | case R_PPC64_SECTOFF_HI: | |
| 14553 | case R_PPC64_SECTOFF_DS: | |
| 14554 | case R_PPC64_SECTOFF_LO_DS: | |
| 14555 | case R_PPC64_SECTOFF_HA: | |
| 4ce794b7 | 14556 | if (sec != NULL) |
| 65f38f15 | 14557 | addend -= sec->output_section->vma; |
| 5bd4f169 AM |
14558 | break; |
| 14559 | ||
| 25f23106 AM |
14560 | case R_PPC64_REL16: |
| 14561 | case R_PPC64_REL16_LO: | |
| 14562 | case R_PPC64_REL16_HI: | |
| 14563 | case R_PPC64_REL16_HA: | |
| a680de9a | 14564 | case R_PPC64_REL16DX_HA: |
| 25f23106 AM |
14565 | break; |
| 14566 | ||
| 721956f4 AM |
14567 | case R_PPC64_REL14: |
| 14568 | case R_PPC64_REL14_BRNTAKEN: | |
| 14569 | case R_PPC64_REL14_BRTAKEN: | |
| 5d1634d7 AM |
14570 | case R_PPC64_REL24: |
| 14571 | break; | |
| 14572 | ||
| 411e1bfb AM |
14573 | case R_PPC64_TPREL16: |
| 14574 | case R_PPC64_TPREL16_LO: | |
| 14575 | case R_PPC64_TPREL16_HI: | |
| 14576 | case R_PPC64_TPREL16_HA: | |
| 14577 | case R_PPC64_TPREL16_DS: | |
| 14578 | case R_PPC64_TPREL16_LO_DS: | |
| f9c6b907 AM |
14579 | case R_PPC64_TPREL16_HIGH: |
| 14580 | case R_PPC64_TPREL16_HIGHA: | |
| 411e1bfb AM |
14581 | case R_PPC64_TPREL16_HIGHER: |
| 14582 | case R_PPC64_TPREL16_HIGHERA: | |
| 14583 | case R_PPC64_TPREL16_HIGHEST: | |
| 14584 | case R_PPC64_TPREL16_HIGHESTA: | |
| 766bc656 AM |
14585 | if (h != NULL |
| 14586 | && h->elf.root.type == bfd_link_hash_undefweak | |
| 14587 | && h->elf.dynindx == -1) | |
| 14588 | { | |
| 14589 | /* Make this relocation against an undefined weak symbol | |
| 14590 | resolve to zero. This is really just a tweak, since | |
| 14591 | code using weak externs ought to check that they are | |
| 14592 | defined before using them. */ | |
| 14593 | bfd_byte *p = contents + rel->r_offset - d_offset; | |
| 14594 | ||
| 14595 | insn = bfd_get_32 (output_bfd, p); | |
| 14596 | insn = _bfd_elf_ppc_at_tprel_transform (insn, 13); | |
| 14597 | if (insn != 0) | |
| 14598 | bfd_put_32 (output_bfd, insn, p); | |
| 14599 | break; | |
| 14600 | } | |
| 989f9879 AM |
14601 | if (htab->elf.tls_sec != NULL) |
| 14602 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 0e1862bb | 14603 | if (bfd_link_pic (info)) |
| 411e1bfb AM |
14604 | /* The TPREL16 relocs shouldn't really be used in shared |
| 14605 | libs as they will result in DT_TEXTREL being set, but | |
| 14606 | support them anyway. */ | |
| 14607 | goto dodyn; | |
| 14608 | break; | |
| 14609 | ||
| 14610 | case R_PPC64_DTPREL16: | |
| 14611 | case R_PPC64_DTPREL16_LO: | |
| 14612 | case R_PPC64_DTPREL16_HI: | |
| 14613 | case R_PPC64_DTPREL16_HA: | |
| 14614 | case R_PPC64_DTPREL16_DS: | |
| 14615 | case R_PPC64_DTPREL16_LO_DS: | |
| f9c6b907 AM |
14616 | case R_PPC64_DTPREL16_HIGH: |
| 14617 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb AM |
14618 | case R_PPC64_DTPREL16_HIGHER: |
| 14619 | case R_PPC64_DTPREL16_HIGHERA: | |
| 14620 | case R_PPC64_DTPREL16_HIGHEST: | |
| 14621 | case R_PPC64_DTPREL16_HIGHESTA: | |
| 989f9879 AM |
14622 | if (htab->elf.tls_sec != NULL) |
| 14623 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14624 | break; |
| 14625 | ||
| 45965137 AM |
14626 | case R_PPC64_ADDR64_LOCAL: |
| 14627 | addend += PPC64_LOCAL_ENTRY_OFFSET (h != NULL | |
| 14628 | ? h->elf.other | |
| 14629 | : sym->st_other); | |
| 14630 | break; | |
| 14631 | ||
| e515b051 AM |
14632 | case R_PPC64_DTPMOD64: |
| 14633 | relocation = 1; | |
| 14634 | addend = 0; | |
| 14635 | goto dodyn; | |
| 14636 | ||
| 411e1bfb | 14637 | case R_PPC64_TPREL64: |
| 989f9879 AM |
14638 | if (htab->elf.tls_sec != NULL) |
| 14639 | addend -= htab->elf.tls_sec->vma + TP_OFFSET; | |
| 411e1bfb AM |
14640 | goto dodyn; |
| 14641 | ||
| 14642 | case R_PPC64_DTPREL64: | |
| 989f9879 AM |
14643 | if (htab->elf.tls_sec != NULL) |
| 14644 | addend -= htab->elf.tls_sec->vma + DTP_OFFSET; | |
| 411e1bfb AM |
14645 | /* Fall thru */ |
| 14646 | ||
| 65f38f15 AM |
14647 | /* Relocations that may need to be propagated if this is a |
| 14648 | dynamic object. */ | |
| 04c9666a | 14649 | case R_PPC64_REL30: |
| 65f38f15 AM |
14650 | case R_PPC64_REL32: |
| 14651 | case R_PPC64_REL64: | |
| 14652 | case R_PPC64_ADDR14: | |
| 14653 | case R_PPC64_ADDR14_BRNTAKEN: | |
| 14654 | case R_PPC64_ADDR14_BRTAKEN: | |
| 14655 | case R_PPC64_ADDR16: | |
| 14656 | case R_PPC64_ADDR16_DS: | |
| 14657 | case R_PPC64_ADDR16_HA: | |
| 14658 | case R_PPC64_ADDR16_HI: | |
| f9c6b907 AM |
14659 | case R_PPC64_ADDR16_HIGH: |
| 14660 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14661 | case R_PPC64_ADDR16_HIGHER: |
| 14662 | case R_PPC64_ADDR16_HIGHERA: | |
| 14663 | case R_PPC64_ADDR16_HIGHEST: | |
| 14664 | case R_PPC64_ADDR16_HIGHESTA: | |
| 14665 | case R_PPC64_ADDR16_LO: | |
| 14666 | case R_PPC64_ADDR16_LO_DS: | |
| 14667 | case R_PPC64_ADDR24: | |
| 65f38f15 AM |
14668 | case R_PPC64_ADDR32: |
| 14669 | case R_PPC64_ADDR64: | |
| 14670 | case R_PPC64_UADDR16: | |
| 14671 | case R_PPC64_UADDR32: | |
| 14672 | case R_PPC64_UADDR64: | |
| 411e1bfb | 14673 | dodyn: |
| 5d1634d7 | 14674 | if ((input_section->flags & SEC_ALLOC) == 0) |
| ec338859 AM |
14675 | break; |
| 14676 | ||
| 41bd81ab AM |
14677 | if (NO_OPD_RELOCS && is_opd) |
| 14678 | break; | |
| 14679 | ||
| 0e1862bb | 14680 | if ((bfd_link_pic (info) |
| 4e795f50 | 14681 | && (h == NULL |
| 039b3fef AM |
14682 | || ELF_ST_VISIBILITY (h->elf.other) == STV_DEFAULT |
| 14683 | || h->elf.root.type != bfd_link_hash_undefweak) | |
| 1d483afe | 14684 | && (must_be_dyn_reloc (info, r_type) |
| 039b3fef | 14685 | || !SYMBOL_CALLS_LOCAL (info, &h->elf))) |
| f4656909 | 14686 | || (ELIMINATE_COPY_RELOCS |
| 0e1862bb | 14687 | && !bfd_link_pic (info) |
| 65f38f15 | 14688 | && h != NULL |
| 039b3fef | 14689 | && h->elf.dynindx != -1 |
| f5385ebf | 14690 | && !h->elf.non_got_ref |
| 25f23106 | 14691 | && !h->elf.def_regular) |
| 0e1862bb | 14692 | || (!bfd_link_pic (info) |
| 25f23106 AM |
14693 | && (h != NULL |
| 14694 | ? h->elf.type == STT_GNU_IFUNC | |
| 14695 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC))) | |
| 65f38f15 | 14696 | { |
| b34976b6 | 14697 | bfd_boolean skip, relocate; |
| 65f38f15 | 14698 | asection *sreloc; |
| 1cf1f670 | 14699 | bfd_vma out_off; |
| 65f38f15 AM |
14700 | |
| 14701 | /* When generating a dynamic object, these relocations | |
| 14702 | are copied into the output file to be resolved at run | |
| 14703 | time. */ | |
| 14704 | ||
| b34976b6 AM |
14705 | skip = FALSE; |
| 14706 | relocate = FALSE; | |
| 65f38f15 | 14707 | |
| 1cf1f670 AM |
14708 | out_off = _bfd_elf_section_offset (output_bfd, info, |
| 14709 | input_section, rel->r_offset); | |
| 14710 | if (out_off == (bfd_vma) -1) | |
| b34976b6 | 14711 | skip = TRUE; |
| 1cf1f670 | 14712 | else if (out_off == (bfd_vma) -2) |
| b34976b6 | 14713 | skip = TRUE, relocate = TRUE; |
| 1cf1f670 AM |
14714 | out_off += (input_section->output_section->vma |
| 14715 | + input_section->output_offset); | |
| 14716 | outrel.r_offset = out_off; | |
| 411e1bfb | 14717 | outrel.r_addend = rel->r_addend; |
| 65f38f15 | 14718 | |
| 1cf1f670 AM |
14719 | /* Optimize unaligned reloc use. */ |
| 14720 | if ((r_type == R_PPC64_ADDR64 && (out_off & 7) != 0) | |
| 14721 | || (r_type == R_PPC64_UADDR64 && (out_off & 7) == 0)) | |
| 14722 | r_type ^= R_PPC64_ADDR64 ^ R_PPC64_UADDR64; | |
| 14723 | else if ((r_type == R_PPC64_ADDR32 && (out_off & 3) != 0) | |
| 14724 | || (r_type == R_PPC64_UADDR32 && (out_off & 3) == 0)) | |
| 14725 | r_type ^= R_PPC64_ADDR32 ^ R_PPC64_UADDR32; | |
| 14726 | else if ((r_type == R_PPC64_ADDR16 && (out_off & 1) != 0) | |
| 14727 | || (r_type == R_PPC64_UADDR16 && (out_off & 1) == 0)) | |
| 14728 | r_type ^= R_PPC64_ADDR16 ^ R_PPC64_UADDR16; | |
| 14729 | ||
| 65f38f15 | 14730 | if (skip) |
| 0bb2d96a | 14731 | memset (&outrel, 0, sizeof outrel); |
| afe397ea | 14732 | else if (!SYMBOL_REFERENCES_LOCAL (info, &h->elf) |
| 0b13192e AM |
14733 | && !is_opd |
| 14734 | && r_type != R_PPC64_TOC) | |
| 14acf4dc MR |
14735 | { |
| 14736 | BFD_ASSERT (h->elf.dynindx != -1); | |
| 14737 | outrel.r_info = ELF64_R_INFO (h->elf.dynindx, r_type); | |
| 14738 | } | |
| 65f38f15 AM |
14739 | else |
| 14740 | { | |
| 41bd81ab AM |
14741 | /* This symbol is local, or marked to become local, |
| 14742 | or this is an opd section reloc which must point | |
| 14743 | at a local function. */ | |
| 65f38f15 | 14744 | outrel.r_addend += relocation; |
| e86ce104 | 14745 | if (r_type == R_PPC64_ADDR64 || r_type == R_PPC64_TOC) |
| 65f38f15 | 14746 | { |
| 3fad3c7c | 14747 | if (is_opd && h != NULL) |
| afbe61cf AM |
14748 | { |
| 14749 | /* Lie about opd entries. This case occurs | |
| 14750 | when building shared libraries and we | |
| 14751 | reference a function in another shared | |
| 3fad3c7c AM |
14752 | lib. The same thing happens for a weak |
| 14753 | definition in an application that's | |
| 14754 | overridden by a strong definition in a | |
| 14755 | shared lib. (I believe this is a generic | |
| 14756 | bug in binutils handling of weak syms.) | |
| 14757 | In these cases we won't use the opd | |
| 1e2f5b6e | 14758 | entry in this lib. */ |
| b34976b6 | 14759 | unresolved_reloc = FALSE; |
| afbe61cf | 14760 | } |
| 25f23106 AM |
14761 | if (!is_opd |
| 14762 | && r_type == R_PPC64_ADDR64 | |
| 14763 | && (h != NULL | |
| 14764 | ? h->elf.type == STT_GNU_IFUNC | |
| 14765 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC)) | |
| 14766 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| 14767 | else | |
| 14768 | { | |
| 14769 | outrel.r_info = ELF64_R_INFO (0, R_PPC64_RELATIVE); | |
| 81407a69 | 14770 | |
| 25f23106 AM |
14771 | /* We need to relocate .opd contents for ld.so. |
| 14772 | Prelink also wants simple and consistent rules | |
| 14773 | for relocs. This make all RELATIVE relocs have | |
| 14774 | *r_offset equal to r_addend. */ | |
| 14775 | relocate = TRUE; | |
| 14776 | } | |
| 65f38f15 AM |
14777 | } |
| 14778 | else | |
| 14779 | { | |
| 14780 | long indx = 0; | |
| 14781 | ||
| 25f23106 AM |
14782 | if (h != NULL |
| 14783 | ? h->elf.type == STT_GNU_IFUNC | |
| 14784 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 14785 | { | |
| 25f53a85 | 14786 | info->callbacks->einfo |
| bc30df16 AM |
14787 | (_("%P: %H: %s for indirect " |
| 14788 | "function `%T' unsupported\n"), | |
| 25f53a85 | 14789 | input_bfd, input_section, rel->r_offset, |
| 25f23106 AM |
14790 | ppc64_elf_howto_table[r_type]->name, |
| 14791 | sym_name); | |
| 14792 | ret = FALSE; | |
| 14793 | } | |
| cf35638d | 14794 | else if (r_symndx == STN_UNDEF || bfd_is_abs_section (sec)) |
| 65f38f15 AM |
14795 | ; |
| 14796 | else if (sec == NULL || sec->owner == NULL) | |
| 14797 | { | |
| 14798 | bfd_set_error (bfd_error_bad_value); | |
| b34976b6 | 14799 | return FALSE; |
| 65f38f15 AM |
14800 | } |
| 14801 | else | |
| 14802 | { | |
| 14803 | asection *osec; | |
| 14804 | ||
| 14805 | osec = sec->output_section; | |
| 14806 | indx = elf_section_data (osec)->dynindx; | |
| 14807 | ||
| 74541ad4 AM |
14808 | if (indx == 0) |
| 14809 | { | |
| 14810 | if ((osec->flags & SEC_READONLY) == 0 | |
| 14811 | && htab->elf.data_index_section != NULL) | |
| 14812 | osec = htab->elf.data_index_section; | |
| 14813 | else | |
| 14814 | osec = htab->elf.text_index_section; | |
| 14815 | indx = elf_section_data (osec)->dynindx; | |
| 14816 | } | |
| 14817 | BFD_ASSERT (indx != 0); | |
| 14818 | ||
| 65f38f15 AM |
14819 | /* We are turning this relocation into one |
| 14820 | against a section symbol, so subtract out | |
| 14821 | the output section's address but not the | |
| 14822 | offset of the input section in the output | |
| 14823 | section. */ | |
| 14824 | outrel.r_addend -= osec->vma; | |
| 14825 | } | |
| 14826 | ||
| 14827 | outrel.r_info = ELF64_R_INFO (indx, r_type); | |
| 14828 | } | |
| 14829 | } | |
| 14830 | ||
| 14831 | sreloc = elf_section_data (input_section)->sreloc; | |
| 19e08130 AM |
14832 | if (h != NULL |
| 14833 | ? h->elf.type == STT_GNU_IFUNC | |
| 14834 | : ELF_ST_TYPE (sym->st_info) == STT_GNU_IFUNC) | |
| 33e44f2e | 14835 | sreloc = htab->elf.irelplt; |
| 65f38f15 AM |
14836 | if (sreloc == NULL) |
| 14837 | abort (); | |
| 14838 | ||
| dfbb6ac9 AM |
14839 | if (sreloc->reloc_count * sizeof (Elf64_External_Rela) |
| 14840 | >= sreloc->size) | |
| 14841 | abort (); | |
| 947216bf AM |
14842 | loc = sreloc->contents; |
| 14843 | loc += sreloc->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 AM |
14844 | bfd_elf64_swap_reloca_out (output_bfd, &outrel, loc); |
| 14845 | ||
| 14846 | /* If this reloc is against an external symbol, it will | |
| 14847 | be computed at runtime, so there's no need to do | |
| 81407a69 AM |
14848 | anything now. However, for the sake of prelink ensure |
| 14849 | that the section contents are a known value. */ | |
| 65f38f15 | 14850 | if (! relocate) |
| 81407a69 AM |
14851 | { |
| 14852 | unresolved_reloc = FALSE; | |
| 14853 | /* The value chosen here is quite arbitrary as ld.so | |
| 14854 | ignores section contents except for the special | |
| 14855 | case of .opd where the contents might be accessed | |
| 14856 | before relocation. Choose zero, as that won't | |
| 14857 | cause reloc overflow. */ | |
| 14858 | relocation = 0; | |
| 14859 | addend = 0; | |
| 14860 | /* Use *r_offset == r_addend for R_PPC64_ADDR64 relocs | |
| 14861 | to improve backward compatibility with older | |
| 14862 | versions of ld. */ | |
| 14863 | if (r_type == R_PPC64_ADDR64) | |
| 14864 | addend = outrel.r_addend; | |
| 14865 | /* Adjust pc_relative relocs to have zero in *r_offset. */ | |
| 4ce794b7 | 14866 | else if (ppc64_elf_howto_table[r_type]->pc_relative) |
| 000732f7 AM |
14867 | addend = (input_section->output_section->vma |
| 14868 | + input_section->output_offset | |
| 14869 | + rel->r_offset); | |
| 81407a69 | 14870 | } |
| 65f38f15 | 14871 | } |
| 5bd4f169 AM |
14872 | break; |
| 14873 | ||
| 65f38f15 AM |
14874 | case R_PPC64_COPY: |
| 14875 | case R_PPC64_GLOB_DAT: | |
| 14876 | case R_PPC64_JMP_SLOT: | |
| 25f23106 | 14877 | case R_PPC64_JMP_IREL: |
| 65f38f15 AM |
14878 | case R_PPC64_RELATIVE: |
| 14879 | /* We shouldn't ever see these dynamic relocs in relocatable | |
| 14880 | files. */ | |
| ae9a127f | 14881 | /* Fall through. */ |
| 65f38f15 AM |
14882 | |
| 14883 | case R_PPC64_PLTGOT16: | |
| 14884 | case R_PPC64_PLTGOT16_DS: | |
| 14885 | case R_PPC64_PLTGOT16_HA: | |
| 14886 | case R_PPC64_PLTGOT16_HI: | |
| 14887 | case R_PPC64_PLTGOT16_LO: | |
| 14888 | case R_PPC64_PLTGOT16_LO_DS: | |
| 14889 | case R_PPC64_PLTREL32: | |
| 14890 | case R_PPC64_PLTREL64: | |
| 14891 | /* These ones haven't been implemented yet. */ | |
| 14892 | ||
| 25f53a85 | 14893 | info->callbacks->einfo |
| bc30df16 | 14894 | (_("%P: %B: %s is not supported for `%T'\n"), |
| d003868e | 14895 | input_bfd, |
| 4ce794b7 | 14896 | ppc64_elf_howto_table[r_type]->name, sym_name); |
| 5bd4f169 AM |
14897 | |
| 14898 | bfd_set_error (bfd_error_invalid_operation); | |
| b34976b6 | 14899 | ret = FALSE; |
| c316a17c | 14900 | goto copy_reloc; |
| 65f38f15 | 14901 | } |
| 5bd4f169 | 14902 | |
| 67f0cbdb AM |
14903 | /* Multi-instruction sequences that access the TOC can be |
| 14904 | optimized, eg. addis ra,r2,0; addi rb,ra,x; | |
| 14905 | to nop; addi rb,r2,x; */ | |
| 14906 | switch (r_type) | |
| 14907 | { | |
| 14908 | default: | |
| 14909 | break; | |
| 14910 | ||
| 14911 | case R_PPC64_GOT_TLSLD16_HI: | |
| 14912 | case R_PPC64_GOT_TLSGD16_HI: | |
| 14913 | case R_PPC64_GOT_TPREL16_HI: | |
| 14914 | case R_PPC64_GOT_DTPREL16_HI: | |
| 14915 | case R_PPC64_GOT16_HI: | |
| 14916 | case R_PPC64_TOC16_HI: | |
| 14917 | /* These relocs would only be useful if building up an | |
| 14918 | offset to later add to r2, perhaps in an indexed | |
| 14919 | addressing mode instruction. Don't try to optimize. | |
| 14920 | Unfortunately, the possibility of someone building up an | |
| 14921 | offset like this or even with the HA relocs, means that | |
| 14922 | we need to check the high insn when optimizing the low | |
| 14923 | insn. */ | |
| 14924 | break; | |
| 14925 | ||
| 14926 | case R_PPC64_GOT_TLSLD16_HA: | |
| 14927 | case R_PPC64_GOT_TLSGD16_HA: | |
| 14928 | case R_PPC64_GOT_TPREL16_HA: | |
| 14929 | case R_PPC64_GOT_DTPREL16_HA: | |
| 14930 | case R_PPC64_GOT16_HA: | |
| 14931 | case R_PPC64_TOC16_HA: | |
| 98528052 | 14932 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14933 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 98528052 AM |
14934 | { |
| 14935 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14936 | bfd_put_32 (input_bfd, NOP, p); | |
| 14937 | } | |
| 67f0cbdb AM |
14938 | break; |
| 14939 | ||
| 14940 | case R_PPC64_GOT_TLSLD16_LO: | |
| 14941 | case R_PPC64_GOT_TLSGD16_LO: | |
| 14942 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 14943 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 14944 | case R_PPC64_GOT16_LO: | |
| 14945 | case R_PPC64_GOT16_LO_DS: | |
| 14946 | case R_PPC64_TOC16_LO: | |
| 14947 | case R_PPC64_TOC16_LO_DS: | |
| 98528052 | 14948 | if (htab->do_toc_opt && relocation + addend + 0x8000 < 0x10000 |
| 560c8763 | 14949 | && !ppc64_elf_tdata (input_bfd)->unexpected_toc_insn) |
| 67f0cbdb AM |
14950 | { |
| 14951 | bfd_byte *p = contents + (rel->r_offset & ~3); | |
| 14952 | insn = bfd_get_32 (input_bfd, p); | |
| 560c8763 AM |
14953 | if ((insn & (0x3f << 26)) == 12u << 26 /* addic */) |
| 14954 | { | |
| 14955 | /* Transform addic to addi when we change reg. */ | |
| 14956 | insn &= ~((0x3f << 26) | (0x1f << 16)); | |
| 14957 | insn |= (14u << 26) | (2 << 16); | |
| 14958 | } | |
| 14959 | else | |
| 67f0cbdb | 14960 | { |
| 98528052 AM |
14961 | insn &= ~(0x1f << 16); |
| 14962 | insn |= 2 << 16; | |
| 67f0cbdb | 14963 | } |
| 560c8763 | 14964 | bfd_put_32 (input_bfd, insn, p); |
| 67f0cbdb AM |
14965 | } |
| 14966 | break; | |
| 14967 | } | |
| 14968 | ||
| 65f38f15 | 14969 | /* Do any further special processing. */ |
| b80eed39 | 14970 | howto = ppc64_elf_howto_table[(int) r_type]; |
| 65f38f15 AM |
14971 | switch (r_type) |
| 14972 | { | |
| 14973 | default: | |
| 14974 | break; | |
| 14975 | ||
| 25f23106 | 14976 | case R_PPC64_REL16_HA: |
| a680de9a | 14977 | case R_PPC64_REL16DX_HA: |
| f9c6b907 AM |
14978 | case R_PPC64_ADDR16_HA: |
| 14979 | case R_PPC64_ADDR16_HIGHA: | |
| 65f38f15 AM |
14980 | case R_PPC64_ADDR16_HIGHERA: |
| 14981 | case R_PPC64_ADDR16_HIGHESTA: | |
| 65f38f15 AM |
14982 | case R_PPC64_TOC16_HA: |
| 14983 | case R_PPC64_SECTOFF_HA: | |
| 411e1bfb | 14984 | case R_PPC64_TPREL16_HA: |
| f9c6b907 | 14985 | case R_PPC64_TPREL16_HIGHA: |
| 411e1bfb | 14986 | case R_PPC64_TPREL16_HIGHERA: |
| 411e1bfb | 14987 | case R_PPC64_TPREL16_HIGHESTA: |
| f9c6b907 AM |
14988 | case R_PPC64_DTPREL16_HA: |
| 14989 | case R_PPC64_DTPREL16_HIGHA: | |
| 411e1bfb | 14990 | case R_PPC64_DTPREL16_HIGHERA: |
| 411e1bfb | 14991 | case R_PPC64_DTPREL16_HIGHESTA: |
| 65f38f15 AM |
14992 | /* It's just possible that this symbol is a weak symbol |
| 14993 | that's not actually defined anywhere. In that case, | |
| 14994 | 'sec' would be NULL, and we should leave the symbol | |
| 14995 | alone (it will be set to zero elsewhere in the link). */ | |
| 5c5f6e17 AM |
14996 | if (sec == NULL) |
| 14997 | break; | |
| 14998 | /* Fall thru */ | |
| 14999 | ||
| 15000 | case R_PPC64_GOT16_HA: | |
| 15001 | case R_PPC64_PLTGOT16_HA: | |
| 15002 | case R_PPC64_PLT16_HA: | |
| 15003 | case R_PPC64_GOT_TLSGD16_HA: | |
| 15004 | case R_PPC64_GOT_TLSLD16_HA: | |
| 15005 | case R_PPC64_GOT_TPREL16_HA: | |
| 15006 | case R_PPC64_GOT_DTPREL16_HA: | |
| 15007 | /* Add 0x10000 if sign bit in 0:15 is set. | |
| 15008 | Bits 0:15 are not used. */ | |
| 15009 | addend += 0x8000; | |
| 65f38f15 AM |
15010 | break; |
| 15011 | ||
| 15012 | case R_PPC64_ADDR16_DS: | |
| 15013 | case R_PPC64_ADDR16_LO_DS: | |
| 15014 | case R_PPC64_GOT16_DS: | |
| 15015 | case R_PPC64_GOT16_LO_DS: | |
| 15016 | case R_PPC64_PLT16_LO_DS: | |
| 15017 | case R_PPC64_SECTOFF_DS: | |
| 15018 | case R_PPC64_SECTOFF_LO_DS: | |
| 15019 | case R_PPC64_TOC16_DS: | |
| 15020 | case R_PPC64_TOC16_LO_DS: | |
| 15021 | case R_PPC64_PLTGOT16_DS: | |
| 15022 | case R_PPC64_PLTGOT16_LO_DS: | |
| 411e1bfb AM |
15023 | case R_PPC64_GOT_TPREL16_DS: |
| 15024 | case R_PPC64_GOT_TPREL16_LO_DS: | |
| 15025 | case R_PPC64_GOT_DTPREL16_DS: | |
| 15026 | case R_PPC64_GOT_DTPREL16_LO_DS: | |
| 15027 | case R_PPC64_TPREL16_DS: | |
| 15028 | case R_PPC64_TPREL16_LO_DS: | |
| 15029 | case R_PPC64_DTPREL16_DS: | |
| 15030 | case R_PPC64_DTPREL16_LO_DS: | |
| adadcc0c AM |
15031 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); |
| 15032 | mask = 3; | |
| a680de9a PB |
15033 | /* If this reloc is against an lq, lxv, or stxv insn, then |
| 15034 | the value must be a multiple of 16. This is somewhat of | |
| 15035 | a hack, but the "correct" way to do this by defining _DQ | |
| 15036 | forms of all the _DS relocs bloats all reloc switches in | |
| 15037 | this file. It doesn't make much sense to use these | |
| 15038 | relocs in data, so testing the insn should be safe. */ | |
| 15039 | if ((insn & (0x3f << 26)) == (56u << 26) | |
| 15040 | || ((insn & (0x3f << 26)) == (61u << 26) && (insn & 3) == 1)) | |
| adadcc0c | 15041 | mask = 15; |
| a680de9a PB |
15042 | relocation += addend; |
| 15043 | addend = insn & (mask ^ 3); | |
| 15044 | if ((relocation & mask) != 0) | |
| 65f38f15 | 15045 | { |
| a680de9a | 15046 | relocation ^= relocation & mask; |
| 25f53a85 | 15047 | info->callbacks->einfo |
| 8de848d8 | 15048 | (_("%P: %H: error: %s not a multiple of %u\n"), |
| 25f53a85 | 15049 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15050 | howto->name, |
| adadcc0c | 15051 | mask + 1); |
| 65f38f15 | 15052 | bfd_set_error (bfd_error_bad_value); |
| b34976b6 | 15053 | ret = FALSE; |
| c316a17c | 15054 | goto copy_reloc; |
| 65f38f15 AM |
15055 | } |
| 15056 | break; | |
| 5bd4f169 AM |
15057 | } |
| 15058 | ||
| 239e1f3a AM |
15059 | /* Dynamic relocs are not propagated for SEC_DEBUGGING sections |
| 15060 | because such sections are not SEC_ALLOC and thus ld.so will | |
| 15061 | not process them. */ | |
| 65f38f15 | 15062 | if (unresolved_reloc |
| 239e1f3a | 15063 | && !((input_section->flags & SEC_DEBUGGING) != 0 |
| 1d5316ab AM |
15064 | && h->elf.def_dynamic) |
| 15065 | && _bfd_elf_section_offset (output_bfd, info, input_section, | |
| 15066 | rel->r_offset) != (bfd_vma) -1) | |
| 9c07fe7c | 15067 | { |
| 25f53a85 | 15068 | info->callbacks->einfo |
| bc30df16 | 15069 | (_("%P: %H: unresolvable %s against `%T'\n"), |
| 25f53a85 | 15070 | input_bfd, input_section, rel->r_offset, |
| b80eed39 | 15071 | howto->name, |
| 039b3fef | 15072 | h->elf.root.root.string); |
| b34976b6 | 15073 | ret = FALSE; |
| 9c07fe7c | 15074 | } |
| 5bd4f169 | 15075 | |
| b80eed39 AM |
15076 | /* 16-bit fields in insns mostly have signed values, but a |
| 15077 | few insns have 16-bit unsigned values. Really, we should | |
| 15078 | have different reloc types. */ | |
| 15079 | if (howto->complain_on_overflow != complain_overflow_dont | |
| 15080 | && howto->dst_mask == 0xffff | |
| 15081 | && (input_section->flags & SEC_CODE) != 0) | |
| 15082 | { | |
| 15083 | enum complain_overflow complain = complain_overflow_signed; | |
| 15084 | ||
| 15085 | insn = bfd_get_32 (input_bfd, contents + (rel->r_offset & ~3)); | |
| a47622ac AM |
15086 | if ((insn & (0x3f << 26)) == 10u << 26 /* cmpli */) |
| 15087 | complain = complain_overflow_bitfield; | |
| 15088 | else if (howto->rightshift == 0 | |
| 15089 | ? ((insn & (0x3f << 26)) == 28u << 26 /* andi */ | |
| 15090 | || (insn & (0x3f << 26)) == 24u << 26 /* ori */ | |
| 15091 | || (insn & (0x3f << 26)) == 26u << 26 /* xori */) | |
| 15092 | : ((insn & (0x3f << 26)) == 29u << 26 /* andis */ | |
| 15093 | || (insn & (0x3f << 26)) == 25u << 26 /* oris */ | |
| 15094 | || (insn & (0x3f << 26)) == 27u << 26 /* xoris */)) | |
| b80eed39 AM |
15095 | complain = complain_overflow_unsigned; |
| 15096 | if (howto->complain_on_overflow != complain) | |
| 15097 | { | |
| 15098 | alt_howto = *howto; | |
| 15099 | alt_howto.complain_on_overflow = complain; | |
| 15100 | howto = &alt_howto; | |
| 15101 | } | |
| 15102 | } | |
| 15103 | ||
| a680de9a PB |
15104 | if (r_type == R_PPC64_REL16DX_HA) |
| 15105 | { | |
| 15106 | /* Split field reloc isn't handled by _bfd_final_link_relocate. */ | |
| 15107 | if (rel->r_offset + 4 > input_section->size) | |
| 15108 | r = bfd_reloc_outofrange; | |
| 15109 | else | |
| 15110 | { | |
| 15111 | relocation += addend; | |
| 15112 | relocation -= (rel->r_offset | |
| 15113 | + input_section->output_offset | |
| 15114 | + input_section->output_section->vma); | |
| 15115 | relocation = (bfd_signed_vma) relocation >> 16; | |
| 15116 | insn = bfd_get_32 (input_bfd, contents + rel->r_offset); | |
| 15117 | insn &= ~0x1fffc1; | |
| 15118 | insn |= (relocation & 0xffc1) | ((relocation & 0x3e) << 15); | |
| 15119 | bfd_put_32 (input_bfd, insn, contents + rel->r_offset); | |
| 15120 | r = bfd_reloc_ok; | |
| 15121 | if (relocation + 0x8000 > 0xffff) | |
| 15122 | r = bfd_reloc_overflow; | |
| 15123 | } | |
| 15124 | } | |
| 15125 | else | |
| 15126 | r = _bfd_final_link_relocate (howto, input_bfd, input_section, contents, | |
| 15127 | rel->r_offset, relocation, addend); | |
| 5bd4f169 | 15128 | |
| ef60b7ff | 15129 | if (r != bfd_reloc_ok) |
| 5bd4f169 | 15130 | { |
| bc30df16 | 15131 | char *more_info = NULL; |
| b80eed39 | 15132 | const char *reloc_name = howto->name; |
| bc30df16 AM |
15133 | |
| 15134 | if (reloc_dest != DEST_NORMAL) | |
| 15135 | { | |
| 15136 | more_info = bfd_malloc (strlen (reloc_name) + 8); | |
| 15137 | if (more_info != NULL) | |
| 15138 | { | |
| 15139 | strcpy (more_info, reloc_name); | |
| 15140 | strcat (more_info, (reloc_dest == DEST_OPD | |
| 15141 | ? " (OPD)" : " (stub)")); | |
| 15142 | reloc_name = more_info; | |
| 15143 | } | |
| 15144 | } | |
| 15145 | ||
| cd27b276 | 15146 | if (r == bfd_reloc_overflow) |
| 5bd4f169 | 15147 | { |
| 8131c122 AM |
15148 | /* On code like "if (foo) foo();" don't report overflow |
| 15149 | on a branch to zero when foo is undefined. */ | |
| 15150 | if (!warned | |
| 15151 | && (reloc_dest == DEST_STUB | |
| 15152 | || !(h != NULL | |
| 15153 | && (h->elf.root.type == bfd_link_hash_undefweak | |
| 15154 | || h->elf.root.type == bfd_link_hash_undefined) | |
| 15155 | && is_branch_reloc (r_type)))) | |
| 1a72702b AM |
15156 | info->callbacks->reloc_overflow (info, &h->elf.root, |
| 15157 | sym_name, reloc_name, | |
| 15158 | orig_rel.r_addend, | |
| 15159 | input_bfd, input_section, | |
| 15160 | rel->r_offset); | |
| ef60b7ff AM |
15161 | } |
| 15162 | else | |
| 15163 | { | |
| 25f53a85 | 15164 | info->callbacks->einfo |
| bc30df16 | 15165 | (_("%P: %H: %s against `%T': error %d\n"), |
| 25f53a85 | 15166 | input_bfd, input_section, rel->r_offset, |
| bc30df16 | 15167 | reloc_name, sym_name, (int) r); |
| b34976b6 | 15168 | ret = FALSE; |
| ef60b7ff | 15169 | } |
| bc30df16 AM |
15170 | if (more_info != NULL) |
| 15171 | free (more_info); | |
| 5bd4f169 | 15172 | } |
| c316a17c AM |
15173 | copy_reloc: |
| 15174 | if (wrel != rel) | |
| 15175 | *wrel = *rel; | |
| 15176 | } | |
| 15177 | ||
| 15178 | if (wrel != rel) | |
| 15179 | { | |
| 15180 | Elf_Internal_Shdr *rel_hdr; | |
| 15181 | size_t deleted = rel - wrel; | |
| 15182 | ||
| 15183 | rel_hdr = _bfd_elf_single_rel_hdr (input_section->output_section); | |
| 15184 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15185 | if (rel_hdr->sh_size == 0) | |
| 15186 | { | |
| 15187 | /* It is too late to remove an empty reloc section. Leave | |
| 15188 | one NONE reloc. | |
| 15189 | ??? What is wrong with an empty section??? */ | |
| 15190 | rel_hdr->sh_size = rel_hdr->sh_entsize; | |
| 15191 | deleted -= 1; | |
| 15192 | } | |
| 15193 | rel_hdr = _bfd_elf_single_rel_hdr (input_section); | |
| 15194 | rel_hdr->sh_size -= rel_hdr->sh_entsize * deleted; | |
| 15195 | input_section->reloc_count -= deleted; | |
| 5bd4f169 AM |
15196 | } |
| 15197 | ||
| 645ea6a9 AM |
15198 | /* If we're emitting relocations, then shortly after this function |
| 15199 | returns, reloc offsets and addends for this section will be | |
| 15200 | adjusted. Worse, reloc symbol indices will be for the output | |
| 8860955f AM |
15201 | file rather than the input. Save a copy of the relocs for |
| 15202 | opd_entry_value. */ | |
| 0e1862bb | 15203 | if (is_opd && (info->emitrelocations || bfd_link_relocatable (info))) |
| 8860955f AM |
15204 | { |
| 15205 | bfd_size_type amt; | |
| 15206 | amt = input_section->reloc_count * sizeof (Elf_Internal_Rela); | |
| 15207 | rel = bfd_alloc (input_bfd, amt); | |
| 729eabd5 AM |
15208 | BFD_ASSERT (ppc64_elf_tdata (input_bfd)->opd.relocs == NULL); |
| 15209 | ppc64_elf_tdata (input_bfd)->opd.relocs = rel; | |
| 8860955f AM |
15210 | if (rel == NULL) |
| 15211 | return FALSE; | |
| 15212 | memcpy (rel, relocs, amt); | |
| 15213 | } | |
| 5bd4f169 AM |
15214 | return ret; |
| 15215 | } | |
| 15216 | ||
| 754021d0 AM |
15217 | /* Adjust the value of any local symbols in opd sections. */ |
| 15218 | ||
| 6e0b88f1 | 15219 | static int |
| 754021d0 AM |
15220 | ppc64_elf_output_symbol_hook (struct bfd_link_info *info, |
| 15221 | const char *name ATTRIBUTE_UNUSED, | |
| 15222 | Elf_Internal_Sym *elfsym, | |
| 15223 | asection *input_sec, | |
| 15224 | struct elf_link_hash_entry *h) | |
| 15225 | { | |
| 74f0fb50 AM |
15226 | struct _opd_sec_data *opd; |
| 15227 | long adjust; | |
| 754021d0 AM |
15228 | bfd_vma value; |
| 15229 | ||
| 4025353c | 15230 | if (h != NULL) |
| 6e0b88f1 | 15231 | return 1; |
| 4025353c | 15232 | |
| 74f0fb50 AM |
15233 | opd = get_opd_info (input_sec); |
| 15234 | if (opd == NULL || opd->adjust == NULL) | |
| 6e0b88f1 | 15235 | return 1; |
| 754021d0 AM |
15236 | |
| 15237 | value = elfsym->st_value - input_sec->output_offset; | |
| 0e1862bb | 15238 | if (!bfd_link_relocatable (info)) |
| 754021d0 AM |
15239 | value -= input_sec->output_section->vma; |
| 15240 | ||
| 51aecdc5 | 15241 | adjust = opd->adjust[OPD_NDX (value)]; |
| 4025353c | 15242 | if (adjust == -1) |
| 6e0b88f1 AM |
15243 | return 2; |
| 15244 | ||
| 15245 | elfsym->st_value += adjust; | |
| 15246 | return 1; | |
| 754021d0 AM |
15247 | } |
| 15248 | ||
| 5bd4f169 AM |
15249 | /* Finish up dynamic symbol handling. We set the contents of various |
| 15250 | dynamic sections here. */ | |
| 15251 | ||
| b34976b6 | 15252 | static bfd_boolean |
| 4ce794b7 AM |
15253 | ppc64_elf_finish_dynamic_symbol (bfd *output_bfd, |
| 15254 | struct bfd_link_info *info, | |
| 15255 | struct elf_link_hash_entry *h, | |
| ab6dce23 | 15256 | Elf_Internal_Sym *sym ATTRIBUTE_UNUSED) |
| 5bd4f169 | 15257 | { |
| 65f38f15 | 15258 | struct ppc_link_hash_table *htab; |
| 8387904d AM |
15259 | struct plt_entry *ent; |
| 15260 | Elf_Internal_Rela rela; | |
| 15261 | bfd_byte *loc; | |
| 5bd4f169 | 15262 | |
| 65f38f15 | 15263 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15264 | if (htab == NULL) |
| 15265 | return FALSE; | |
| 5bd4f169 | 15266 | |
| 8387904d AM |
15267 | for (ent = h->plt.plist; ent != NULL; ent = ent->next) |
| 15268 | if (ent->plt.offset != (bfd_vma) -1) | |
| 15269 | { | |
| 15270 | /* This symbol has an entry in the procedure linkage | |
| 15271 | table. Set it up. */ | |
| e054468f AM |
15272 | if (!htab->elf.dynamic_sections_created |
| 15273 | || h->dynindx == -1) | |
| 15274 | { | |
| 15275 | BFD_ASSERT (h->type == STT_GNU_IFUNC | |
| 15276 | && h->def_regular | |
| 15277 | && (h->root.type == bfd_link_hash_defined | |
| 15278 | || h->root.type == bfd_link_hash_defweak)); | |
| 33e44f2e AM |
15279 | rela.r_offset = (htab->elf.iplt->output_section->vma |
| 15280 | + htab->elf.iplt->output_offset | |
| 25f23106 | 15281 | + ent->plt.offset); |
| ee67d69a AM |
15282 | if (htab->opd_abi) |
| 15283 | rela.r_info = ELF64_R_INFO (0, R_PPC64_JMP_IREL); | |
| 15284 | else | |
| 15285 | rela.r_info = ELF64_R_INFO (0, R_PPC64_IRELATIVE); | |
| e054468f AM |
15286 | rela.r_addend = (h->root.u.def.value |
| 15287 | + h->root.u.def.section->output_offset | |
| 15288 | + h->root.u.def.section->output_section->vma | |
| 15289 | + ent->addend); | |
| 33e44f2e AM |
15290 | loc = (htab->elf.irelplt->contents |
| 15291 | + (htab->elf.irelplt->reloc_count++ | |
| 25f23106 | 15292 | * sizeof (Elf64_External_Rela))); |
| e054468f AM |
15293 | } |
| 15294 | else | |
| 15295 | { | |
| 33e44f2e AM |
15296 | rela.r_offset = (htab->elf.splt->output_section->vma |
| 15297 | + htab->elf.splt->output_offset | |
| 25f23106 | 15298 | + ent->plt.offset); |
| e054468f AM |
15299 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_JMP_SLOT); |
| 15300 | rela.r_addend = ent->addend; | |
| 33e44f2e | 15301 | loc = (htab->elf.srelplt->contents |
| b9e5796b AM |
15302 | + ((ent->plt.offset - PLT_INITIAL_ENTRY_SIZE (htab)) |
| 15303 | / PLT_ENTRY_SIZE (htab) * sizeof (Elf64_External_Rela))); | |
| e054468f | 15304 | } |
| 8387904d | 15305 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| a345bc8d AM |
15306 | |
| 15307 | if (!htab->opd_abi) | |
| 15308 | { | |
| 15309 | if (!h->def_regular) | |
| 15310 | { | |
| 15311 | /* Mark the symbol as undefined, rather than as | |
| 15312 | defined in glink. Leave the value if there were | |
| 15313 | any relocations where pointer equality matters | |
| 15314 | (this is a clue for the dynamic linker, to make | |
| 15315 | function pointer comparisons work between an | |
| 15316 | application and shared library), otherwise set it | |
| 15317 | to zero. */ | |
| 15318 | sym->st_shndx = SHN_UNDEF; | |
| 15319 | if (!h->pointer_equality_needed) | |
| 15320 | sym->st_value = 0; | |
| 15321 | else if (!h->ref_regular_nonweak) | |
| 15322 | { | |
| 15323 | /* This breaks function pointer comparisons, but | |
| 15324 | that is better than breaking tests for a NULL | |
| 15325 | function pointer. */ | |
| 15326 | sym->st_value = 0; | |
| 15327 | } | |
| 15328 | } | |
| 15329 | } | |
| 8387904d | 15330 | } |
| 5bd4f169 | 15331 | |
| f5385ebf | 15332 | if (h->needs_copy) |
| 5bd4f169 | 15333 | { |
| 65f38f15 | 15334 | /* This symbol needs a copy reloc. Set it up. */ |
| 5bd4f169 | 15335 | |
| 65f38f15 AM |
15336 | if (h->dynindx == -1 |
| 15337 | || (h->root.type != bfd_link_hash_defined | |
| 15338 | && h->root.type != bfd_link_hash_defweak) | |
| 4ce794b7 | 15339 | || htab->relbss == NULL) |
| 65f38f15 | 15340 | abort (); |
| 5bd4f169 AM |
15341 | |
| 15342 | rela.r_offset = (h->root.u.def.value | |
| 15343 | + h->root.u.def.section->output_section->vma | |
| 15344 | + h->root.u.def.section->output_offset); | |
| 15345 | rela.r_info = ELF64_R_INFO (h->dynindx, R_PPC64_COPY); | |
| 15346 | rela.r_addend = 0; | |
| 4ce794b7 AM |
15347 | loc = htab->relbss->contents; |
| 15348 | loc += htab->relbss->reloc_count++ * sizeof (Elf64_External_Rela); | |
| 65f38f15 | 15349 | bfd_elf64_swap_reloca_out (output_bfd, &rela, loc); |
| 5bd4f169 AM |
15350 | } |
| 15351 | ||
| b34976b6 | 15352 | return TRUE; |
| 5bd4f169 AM |
15353 | } |
| 15354 | ||
| 65f38f15 AM |
15355 | /* Used to decide how to sort relocs in an optimal manner for the |
| 15356 | dynamic linker, before writing them out. */ | |
| 15357 | ||
| 15358 | static enum elf_reloc_type_class | |
| 7e612e98 AM |
15359 | ppc64_elf_reloc_type_class (const struct bfd_link_info *info, |
| 15360 | const asection *rel_sec, | |
| 15361 | const Elf_Internal_Rela *rela) | |
| 65f38f15 | 15362 | { |
| 04c9666a | 15363 | enum elf_ppc64_reloc_type r_type; |
| 7e612e98 AM |
15364 | struct ppc_link_hash_table *htab = ppc_hash_table (info); |
| 15365 | ||
| 33e44f2e | 15366 | if (rel_sec == htab->elf.irelplt) |
| 7e612e98 | 15367 | return reloc_class_ifunc; |
| a33d1f77 | 15368 | |
| 4ce794b7 | 15369 | r_type = ELF64_R_TYPE (rela->r_info); |
| a33d1f77 | 15370 | switch (r_type) |
| 65f38f15 AM |
15371 | { |
| 15372 | case R_PPC64_RELATIVE: | |
| 15373 | return reloc_class_relative; | |
| 15374 | case R_PPC64_JMP_SLOT: | |
| 15375 | return reloc_class_plt; | |
| 15376 | case R_PPC64_COPY: | |
| 15377 | return reloc_class_copy; | |
| 15378 | default: | |
| 15379 | return reloc_class_normal; | |
| 15380 | } | |
| 15381 | } | |
| 15382 | ||
| 5bd4f169 AM |
15383 | /* Finish up the dynamic sections. */ |
| 15384 | ||
| b34976b6 | 15385 | static bfd_boolean |
| 4ce794b7 AM |
15386 | ppc64_elf_finish_dynamic_sections (bfd *output_bfd, |
| 15387 | struct bfd_link_info *info) | |
| 5bd4f169 | 15388 | { |
| 65f38f15 AM |
15389 | struct ppc_link_hash_table *htab; |
| 15390 | bfd *dynobj; | |
| 5bd4f169 | 15391 | asection *sdyn; |
| 5bd4f169 | 15392 | |
| 65f38f15 | 15393 | htab = ppc_hash_table (info); |
| 4dfe6ac6 NC |
15394 | if (htab == NULL) |
| 15395 | return FALSE; | |
| 15396 | ||
| 65f38f15 | 15397 | dynobj = htab->elf.dynobj; |
| 3d4d4302 | 15398 | sdyn = bfd_get_linker_section (dynobj, ".dynamic"); |
| 5bd4f169 | 15399 | |
| 65f38f15 | 15400 | if (htab->elf.dynamic_sections_created) |
| 5bd4f169 | 15401 | { |
| 5bd4f169 AM |
15402 | Elf64_External_Dyn *dyncon, *dynconend; |
| 15403 | ||
| 33e44f2e | 15404 | if (sdyn == NULL || htab->elf.sgot == NULL) |
| 65f38f15 | 15405 | abort (); |
| 5bd4f169 AM |
15406 | |
| 15407 | dyncon = (Elf64_External_Dyn *) sdyn->contents; | |
| eea6121a | 15408 | dynconend = (Elf64_External_Dyn *) (sdyn->contents + sdyn->size); |
| 5bd4f169 AM |
15409 | for (; dyncon < dynconend; dyncon++) |
| 15410 | { | |
| 15411 | Elf_Internal_Dyn dyn; | |
| 19397422 | 15412 | asection *s; |
| 5bd4f169 AM |
15413 | |
| 15414 | bfd_elf64_swap_dyn_in (dynobj, dyncon, &dyn); | |
| 15415 | ||
| 15416 | switch (dyn.d_tag) | |
| 15417 | { | |
| 65f38f15 AM |
15418 | default: |
| 15419 | continue; | |
| 5bd4f169 | 15420 | |
| 5d1634d7 | 15421 | case DT_PPC64_GLINK: |
| 4ce794b7 | 15422 | s = htab->glink; |
| 6348e046 | 15423 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| ad8e1ba5 AM |
15424 | /* We stupidly defined DT_PPC64_GLINK to be the start |
| 15425 | of glink rather than the first entry point, which is | |
| 15426 | what ld.so needs, and now have a bigger stub to | |
| 15427 | support automatic multiple TOCs. */ | |
| b9e5796b | 15428 | dyn.d_un.d_ptr += GLINK_CALL_STUB_SIZE - 8 * 4; |
| 5d1634d7 AM |
15429 | break; |
| 15430 | ||
| 19397422 AM |
15431 | case DT_PPC64_OPD: |
| 15432 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15433 | if (s == NULL) |
| 15434 | continue; | |
| 15435 | dyn.d_un.d_ptr = s->vma; | |
| 19397422 AM |
15436 | break; |
| 15437 | ||
| e8910a83 AM |
15438 | case DT_PPC64_OPT: |
| 15439 | if (htab->do_multi_toc && htab->multi_toc_needed) | |
| 15440 | dyn.d_un.d_val |= PPC64_OPT_MULTI_TOC; | |
| 15441 | break; | |
| 15442 | ||
| 19397422 AM |
15443 | case DT_PPC64_OPDSZ: |
| 15444 | s = bfd_get_section_by_name (output_bfd, ".opd"); | |
| 6348e046 AM |
15445 | if (s == NULL) |
| 15446 | continue; | |
| eea6121a | 15447 | dyn.d_un.d_val = s->size; |
| 19397422 AM |
15448 | break; |
| 15449 | ||
| 65f38f15 | 15450 | case DT_PLTGOT: |
| 33e44f2e | 15451 | s = htab->elf.splt; |
| 6348e046 | 15452 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 AM |
15453 | break; |
| 15454 | ||
| 15455 | case DT_JMPREL: | |
| 33e44f2e | 15456 | s = htab->elf.srelplt; |
| 6348e046 | 15457 | dyn.d_un.d_ptr = s->output_section->vma + s->output_offset; |
| 65f38f15 | 15458 | break; |
| 5bd4f169 | 15459 | |
| 65f38f15 | 15460 | case DT_PLTRELSZ: |
| 33e44f2e | 15461 | dyn.d_un.d_val = htab->elf.srelplt->size; |
| 5d1634d7 AM |
15462 | break; |
| 15463 | ||
| 15464 | case DT_RELASZ: | |
| 15465 | /* Don't count procedure linkage table relocs in the | |
| 15466 | overall reloc count. */ | |
| 33e44f2e | 15467 | s = htab->elf.srelplt; |
| 6348e046 AM |
15468 | if (s == NULL) |
| 15469 | continue; | |
| eea6121a | 15470 | dyn.d_un.d_val -= s->size; |
| 6348e046 AM |
15471 | break; |
| 15472 | ||
| 15473 | case DT_RELA: | |
| 15474 | /* We may not be using the standard ELF linker script. | |
| 15475 | If .rela.plt is the first .rela section, we adjust | |
| 15476 | DT_RELA to not include it. */ | |
| 33e44f2e | 15477 | s = htab->elf.srelplt; |
| 6348e046 AM |
15478 | if (s == NULL) |
| 15479 | continue; | |
| 15480 | if (dyn.d_un.d_ptr != s->output_section->vma + s->output_offset) | |
| 15481 | continue; | |
| eea6121a | 15482 | dyn.d_un.d_ptr += s->size; |
| 65f38f15 | 15483 | break; |
| 5bd4f169 | 15484 | } |
| 5bd4f169 | 15485 | |
| 65f38f15 | 15486 | bfd_elf64_swap_dyn_out (output_bfd, &dyn, dyncon); |
| 5bd4f169 | 15487 | } |
| 5bd4f169 AM |
15488 | } |
| 15489 | ||
| 33e44f2e | 15490 | if (htab->elf.sgot != NULL && htab->elf.sgot->size != 0) |
| 5d1634d7 AM |
15491 | { |
| 15492 | /* Fill in the first entry in the global offset table. | |
| 15493 | We use it to hold the link-time TOCbase. */ | |
| 15494 | bfd_put_64 (output_bfd, | |
| 60ee0d4a | 15495 | elf_gp (output_bfd) + TOC_BASE_OFF, |
| 33e44f2e | 15496 | htab->elf.sgot->contents); |
| 5d1634d7 AM |
15497 | |
| 15498 | /* Set .got entry size. */ | |
| 33e44f2e | 15499 | elf_section_data (htab->elf.sgot->output_section)->this_hdr.sh_entsize = 8; |
| 5d1634d7 AM |
15500 | } |
| 15501 | ||
| 33e44f2e | 15502 | if (htab->elf.splt != NULL && htab->elf.splt->size != 0) |
| 5d1634d7 AM |
15503 | { |
| 15504 | /* Set .plt entry size. */ | |
| 33e44f2e | 15505 | elf_section_data (htab->elf.splt->output_section)->this_hdr.sh_entsize |
| b9e5796b | 15506 | = PLT_ENTRY_SIZE (htab); |
| 5d1634d7 AM |
15507 | } |
| 15508 | ||
| 84f5d08e AM |
15509 | /* brlt is SEC_LINKER_CREATED, so we need to write out relocs for |
| 15510 | brlt ourselves if emitrelocations. */ | |
| 15511 | if (htab->brlt != NULL | |
| 15512 | && htab->brlt->reloc_count != 0 | |
| 15513 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15514 | htab->brlt, | |
| d4730f92 | 15515 | elf_section_data (htab->brlt)->rela.hdr, |
| 84f5d08e AM |
15516 | elf_section_data (htab->brlt)->relocs, |
| 15517 | NULL)) | |
| 15518 | return FALSE; | |
| 15519 | ||
| 176a0d42 AM |
15520 | if (htab->glink != NULL |
| 15521 | && htab->glink->reloc_count != 0 | |
| 15522 | && !_bfd_elf_link_output_relocs (output_bfd, | |
| 15523 | htab->glink, | |
| d4730f92 | 15524 | elf_section_data (htab->glink)->rela.hdr, |
| 176a0d42 AM |
15525 | elf_section_data (htab->glink)->relocs, |
| 15526 | NULL)) | |
| 15527 | return FALSE; | |
| 15528 | ||
| 58d180e8 | 15529 | if (htab->glink_eh_frame != NULL |
| da44f4e5 AM |
15530 | && htab->glink_eh_frame->size != 0) |
| 15531 | { | |
| 15532 | bfd_vma val; | |
| 15533 | bfd_byte *p; | |
| 15534 | asection *stub_sec; | |
| 15535 | ||
| 15536 | p = htab->glink_eh_frame->contents + sizeof (glink_eh_frame_cie); | |
| 15537 | for (stub_sec = htab->params->stub_bfd->sections; | |
| 15538 | stub_sec != NULL; | |
| 15539 | stub_sec = stub_sec->next) | |
| 15540 | if ((stub_sec->flags & SEC_LINKER_CREATED) == 0) | |
| 15541 | { | |
| 15542 | /* FDE length. */ | |
| 15543 | p += 4; | |
| 15544 | /* CIE pointer. */ | |
| 15545 | p += 4; | |
| 15546 | /* Offset to stub section. */ | |
| 15547 | val = (stub_sec->output_section->vma | |
| 15548 | + stub_sec->output_offset); | |
| 15549 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15550 | + htab->glink_eh_frame->output_offset | |
| 15551 | + (p - htab->glink_eh_frame->contents)); | |
| 15552 | if (val + 0x80000000 > 0xffffffff) | |
| 15553 | { | |
| 15554 | info->callbacks->einfo | |
| 15555 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15556 | stub_sec->name); | |
| 15557 | return FALSE; | |
| 15558 | } | |
| 15559 | bfd_put_32 (dynobj, val, p); | |
| 15560 | p += 4; | |
| 15561 | /* stub section size. */ | |
| 15562 | p += 4; | |
| 15563 | /* Augmentation. */ | |
| 15564 | p += 1; | |
| 15565 | /* Pad. */ | |
| 15566 | p += 7; | |
| 15567 | } | |
| 15568 | if (htab->glink != NULL && htab->glink->size != 0) | |
| 15569 | { | |
| 15570 | /* FDE length. */ | |
| 15571 | p += 4; | |
| 15572 | /* CIE pointer. */ | |
| 15573 | p += 4; | |
| 15574 | /* Offset to .glink. */ | |
| 15575 | val = (htab->glink->output_section->vma | |
| 15576 | + htab->glink->output_offset | |
| 15577 | + 8); | |
| 15578 | val -= (htab->glink_eh_frame->output_section->vma | |
| 15579 | + htab->glink_eh_frame->output_offset | |
| 15580 | + (p - htab->glink_eh_frame->contents)); | |
| 15581 | if (val + 0x80000000 > 0xffffffff) | |
| 15582 | { | |
| 15583 | info->callbacks->einfo | |
| 15584 | (_("%P: %s offset too large for .eh_frame sdata4 encoding"), | |
| 15585 | htab->glink->name); | |
| 15586 | return FALSE; | |
| 15587 | } | |
| 15588 | bfd_put_32 (dynobj, val, p); | |
| 15589 | p += 4; | |
| 15590 | /* .glink size. */ | |
| 15591 | p += 4; | |
| 15592 | /* Augmentation. */ | |
| 15593 | p += 1; | |
| 15594 | /* Ops. */ | |
| 15595 | p += 7; | |
| 15596 | } | |
| 15597 | ||
| 15598 | if (htab->glink_eh_frame->sec_info_type == SEC_INFO_TYPE_EH_FRAME | |
| 15599 | && !_bfd_elf_write_section_eh_frame (output_bfd, info, | |
| 15600 | htab->glink_eh_frame, | |
| 15601 | htab->glink_eh_frame->contents)) | |
| 15602 | return FALSE; | |
| 15603 | } | |
| 58d180e8 | 15604 | |
| e717da7e | 15605 | /* We need to handle writing out multiple GOT sections ourselves, |
| 7b53ace3 AM |
15606 | since we didn't add them to DYNOBJ. We know dynobj is the first |
| 15607 | bfd. */ | |
| c72f2fb2 | 15608 | while ((dynobj = dynobj->link.next) != NULL) |
| e717da7e AM |
15609 | { |
| 15610 | asection *s; | |
| 7b53ace3 | 15611 | |
| 0c8d6e5c | 15612 | if (!is_ppc64_elf (dynobj)) |
| 7b53ace3 AM |
15613 | continue; |
| 15614 | ||
| e717da7e AM |
15615 | s = ppc64_elf_tdata (dynobj)->got; |
| 15616 | if (s != NULL | |
| eea6121a | 15617 | && s->size != 0 |
| e717da7e AM |
15618 | && s->output_section != bfd_abs_section_ptr |
| 15619 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15620 | s->contents, s->output_offset, | |
| eea6121a | 15621 | s->size)) |
| e717da7e AM |
15622 | return FALSE; |
| 15623 | s = ppc64_elf_tdata (dynobj)->relgot; | |
| 15624 | if (s != NULL | |
| eea6121a | 15625 | && s->size != 0 |
| e717da7e AM |
15626 | && s->output_section != bfd_abs_section_ptr |
| 15627 | && !bfd_set_section_contents (output_bfd, s->output_section, | |
| 15628 | s->contents, s->output_offset, | |
| eea6121a | 15629 | s->size)) |
| e717da7e AM |
15630 | return FALSE; |
| 15631 | } | |
| f6c52c13 | 15632 | |
| b34976b6 | 15633 | return TRUE; |
| 5bd4f169 AM |
15634 | } |
| 15635 | ||
| 5bd4f169 | 15636 | #include "elf64-target.h" |
| 7b8e7dad AM |
15637 | |
| 15638 | /* FreeBSD support */ | |
| 15639 | ||
| 15640 | #undef TARGET_LITTLE_SYM | |
| 15641 | #undef TARGET_LITTLE_NAME | |
| 15642 | ||
| 15643 | #undef TARGET_BIG_SYM | |
| 6d00b590 | 15644 | #define TARGET_BIG_SYM powerpc_elf64_fbsd_vec |
| 7b8e7dad AM |
15645 | #undef TARGET_BIG_NAME |
| 15646 | #define TARGET_BIG_NAME "elf64-powerpc-freebsd" | |
| 15647 | ||
| 15648 | #undef ELF_OSABI | |
| 15649 | #define ELF_OSABI ELFOSABI_FREEBSD | |
| 15650 | ||
| 15651 | #undef elf64_bed | |
| 15652 | #define elf64_bed elf64_powerpc_fbsd_bed | |
| 15653 | ||
| 15654 | #include "elf64-target.h" | |
| 15655 |